CN101850616B - Heating and air-returning device - Google Patents

Abstract

The invention relates to a heating and air-returning device which is applicable to a three-dimensional forming mechanism and the three-dimensional forming mechanism contains a printing component and a constructing platform. The heating and air-returning device at least comprises a heating device, an air-returning channel and a suction device, wherein when the printing cartridge of the printing component sprays and prints liquid to the constructing platform, the heating device generates hot air to solidify the liquid; the air-returning channel is arranged near the printing cartridge of the printing component; and the suction device is connected with the air-returning channel and used to suck the construction powder generated by the operation of the printing component through the air-returning channel and lead the hot air to the air-returning channel.

Description

Heating and air-returning device

Technical field

The invention relates to a kind of heating and air-returning device, refer to a kind of heating and air-returning device device that is applicable to stereoscopic moulding mechanism especially.

Background technology

Rapid shaping technique (Rapid Prototyping; Be called for short the RP technology) be to develop according to the notion that the construction pyramid is stacked into type layer by layer to form; Its major technique characteristic is the agility of moulding; Can automatically, fast the design of any complicated shape be converted fast into the physical model of 3D under the situation of mould and tool without any need for cutter, shorten the R&D cycle of new product greatly and reduced R&D costs; Can guarantee the Time To Market of new product and the one-time success rate of new product development; It is between the technical staff, and a more complete and product design media of communication easily is provided between the non-technical personnels such as user of technical staff and corporate decision maker, product, thereby has obviously improved the quick-reaction capability of competitiveness and the enterprise of product on market to market.

RP technical development at present goes out to utilize the spray printing technology to combine the mode of carrier precision positioning technology to produce the physical model of 3D; Its mode of production is earlier one deck powder to be layed in the carrier top and to utilize inkjet technology spray printing high viscosity adhesive liquid on the part powder; Make adhesive liquid and powder be stained with glutinous and curing, repeat above-mentioned processing procedure always and pile up the physical model that to accomplish 3D layer by layer.

Yet the employed spray printing equipment of existing RP technology also can't be sealed up for safekeeping when not carrying out jet printing, and cull can be killed in the all-in-service station of jet-printing head or storage, will cause follow-up spray printing functional bad, can't continue the high-quality 3D product of spray printing output.

Though existing RP technology is to be known as rapid shaping technique; But no matter the size of formed article or how to improve the equipment of rapid molding device; Still need spend several hours or ability shaping completion in tens of hours, and in piling up the finished product that forms layer by layer, when jet-printing head itself has obstruction; As if not judging or discover, will cause time and the material waste that to remedy in real time.

In addition, when the mode of using spray printing high viscosity adhesive liquid was shaped, glue point spouting velocity was up to 8m/ second; In this ultrahigh speed hydrojet, stick powder at that moment when drop is sticking, the next door is not flown upward by sticking glutinous nanoscale starch end meeting of drop thereby bounce-back; And when supplying powder or pickup, push powder and pile the phenomenon that the Shi Junhui generation powder that drops flies upward everywhere, and existing equipment does not have quantitative powder supplying mechanism; Need unnecessary powder is pushed recovery cylinder, pollute and energy waste in the time of can causing powder to drop, in addition; After accomplishing, each shop powder needs to wait for the shaping and drying time, and must wait for several hours dryings after the moulding that also even fabrication strength is not enough or take accidentally and all possibly injure finished product; So need let moulding article intensity enough strong, can take out, and the spray printing positioning accuracy can't be reached; Can only unidirectional quick shop powder and printing, increase the time of total moulding.

In addition, when long-term standby or jet-printing head left, scraping blade in the all-in-service station and seal can stick adhesive and produce hardening phenomenon.

And; Prior art is used the device of unidirectional dusting and unidirectional spray printing; Its print components action of unidirectional spray printing,, begins spray printing by the initial point place to locate to terminal again by destination county dusting to initial point place by locating to supply powder to terminal in the initial point place for earlier at last again; The previous operations time is too tediously long, and the time can't make full use of.

Therefore, how to develop a kind of heating and air-returning device that is applicable to stereoscopic moulding mechanism that improves above-mentioned prior art disappearance, real in pressing for the problem of solution at present.

Summary of the invention

Main purpose of the present invention is to provide a kind of heating and air-returning device, waits for that to overcome the conventional stereo shaping mechanism shaping and drying time passes the shortcoming of waiting so long when carrying out jet printing.

For reaching above-mentioned purpose; Of the present invention one implements the appearance attitude for a kind of heating and air-returning device is provided than broad sense; It is to be applicable to stereoscopic moulding mechanism, and this stereoscopic moulding mechanism has print components and construction platform, comprises at least: heater; It produces hot gas to solidify this liquid when the print cartridge spray printing liquid of print components is to the construction platform; Return air channel, the print cartridge setting of its contiguous print components; Air intake device, it is connected with return air channel, in order to draw construction powder that the print components running kicked up through return air channel and hot gas is guided to return air channel.

Description of drawings

Figure 1A: it is the perspective view of the stereoscopic moulding mechanism of preferred embodiment of the present invention.

Figure 1B: it is the generalized section of Figure 1A.

Fig. 1 C: it is the sketch map that the print components shown in Figure 1B moves to right edge.

Fig. 1 D: it is the jacking equipment illustrative view shown in Figure 1B.

Fig. 1 E: it is the a-quadrant enlarged diagram of Figure 1B.

Fig. 1 F: it is the structural representation that slotted eye and the perforate of bottom of the plate of the temporary storage powder groove shown in Fig. 1 E do not communicate.

Fig. 1 G: it is the structural representation that the slotted eye of the plate of the temporary storage powder groove shown in Fig. 1 E is connected with the perforate of bottom.

Fig. 1 H: it is the perspective view of the Cover opening of temporary storage powder groove.

Fig. 2 A: it is the existing sketch map that supplies the powder mode.

Fig. 2 B: it is temporary storage powder groove of the present invention supplies powder on the construction platform with the powder mode that paragraphs a sketch map.

Fig. 3: it is the part-structure sketch map of Figure 1A.

Fig. 4 A: it is the part-structure sketch map of print components of the present invention.

Fig. 4 B: it is that the drive disk assembly structural representation is set on the drive disk assembly shown in Fig. 4 A.

Fig. 5 A: it is the set construction groove dustproof construction sketch map of stereoscopic moulding mechanism of the present invention.

Fig. 5 B: it is the body sketch map of the construction groove dustproof construction shown in Fig. 5 A.

Fig. 5 C: it is the first air intake device sketch map that stereoscopic moulding mechanism of the present invention is provided with construction groove dustproof construction.

Fig. 6 A: it is the attending device structural representation that stereoscopic moulding mechanism of the present invention is provided with.

Fig. 6 B: it is the cage cellular construction sketch map shown in Fig. 6 A.

Fig. 6 C: it is the cage envelope dirt modular construction sketch map that stereoscopic moulding mechanism of the present invention is provided with.

Fig. 6 D: it is the generalized section that the cage envelope dirt parts running shown in Fig. 6 C is opened.

Fig. 6 E: it is the generalized section that the cage envelope dirt parts running shown in Fig. 6 C is closed.

Fig. 7 A: it is the perspective view of the set cleaning dust proof member of stereoscopic moulding mechanism of the present invention.

Fig. 7 B: it is to strike off unit and the relevant assembling structure sketch map of cleaning dust proof member shown in Fig. 7 A.

Fig. 7 C: it is the structure for amplifying sketch map in the C zone of Fig. 7 A.

Fig. 7 D: it is that the route guidance unit that cleans dust proof member shown in Fig. 7 C produces the structural representation of displacement downwards.

Fig. 7 E: it is that the rod member of protrusion shown in Fig. 7 C is through cleaning dust proof member sketch map.

Fig. 7 F: it is that strike off unit and the jet-printing head shown in Fig. 7 C implemented the cleaning operation sketch map.

Fig. 8: it is the operating environment dustproof construction sketch map in stereoscopic moulding mechanism of the present invention.

Fig. 9: it is the part-structure sketch map of the temporary storage powder groove shown in Figure 1A.

Figure 10 A: it is the generalized section that stereoscopic moulding mechanism of the present invention is provided with heating and air-returning device.

Figure 10 B: it is the perspective view of Figure 10 A.

Figure 11: it is a stereoscopic moulding mechanism continuous liquid supply device sketch map of the present invention.

Figure 12: it is the forming step flow chart of stereoscopic moulding mechanism of the present invention.

Figure 13: it is to see structural representation outside the stereoscopic moulding mechanism of the present invention.

The specific embodiment

Some exemplary embodiments that embody characteristic of the present invention and advantage will be described in detail in the explanation of back segment.Be understood that the present invention can have various variations on different aspects, its neither departing from the scope of the present invention, and explanation wherein and icon be the usefulness of being used as explanation in itself, but not in order to restriction the present invention.

See also Figure 1A and Figure 1B; Wherein Figure 1A is the perspective view of the stereoscopic moulding mechanism of preferred embodiment of the present invention; Figure 1B is the generalized section of Figure 1A; Shown in Figure 1A, stereoscopic moulding mechanism 1 of the present invention mainly is to have a dozen seal assemblies 11 of framework, a plurality of temporary storage powder groove, a plurality of confession powder groove, a jacking equipment 14 and a construction groove 15 (shown in Figure 1B) on the construction pedestal 9 of carrying platform 91 in one.

Again; Stereoscopic moulding mechanism of the present invention has more a printed product quality inspection and surveys a mechanism and an image detecting element; This print quality testing agency includes one and is driven rollable paper; Use for this print components spray printing one figure on this paper, judge with the figure of this this paper of image detecting element detecting whether this print components blocks; And when preventing that print components from not operating; Residual contain the liquid hardening that glues together glue on jet-printing head of print cartridge and the powder that flies upward sticked together on jet-printing head on it; And cause follow-up spray printing dysfunction; Can't continue spray printing and go out high-quality solid object, therefore in the stereoscopic moulding mechanism of the present invention an attending device is set also.

Moreover stereoscopic moulding mechanism of the present invention contains the liquid construction moulding solid object of adhesive with spray printing on the construction powder, and the working environment that this construction powder can cause the dirt powder to fly upward when shop powder or print job has influence on the operate as normal of said apparatus and member.Yet; The device of stereoscopic moulding mechanism of the present invention and member all will be kept normal operation at any time; Be absolute the preventing dust that necessarily requires entire equipment comprehensive; Therefore, stereoscopic moulding mechanism of the present invention also further is provided with dust guard, and this dust guard includes a drive disk assembly dustproof construction, a construction groove dustproof construction, an attending device dustproof construction, an operating environment dustproof construction, a storage powder groove dustproof construction; In order to prevent that this construction powder that this shop powder and print job are kicked up from polluting, and completely cuts off.

In addition, general stereoscopic moulding mechanism is very time-consuming in construction moulding solid object, for overcoming this shortcoming; The speed of construction groove upper berth powder lamination is essential to be accelerated, but at normal temperatures, must want a period of time drying after containing the spray liquid of adhesive; For shortening drying time, stereoscopic moulding mechanism of the present invention also further is provided with heating and air-returning device, can accelerate drying time; Reach quick spray printing and molding time, and can be as the proofing dust and protecting of ink gun.

Again; The present invention's stereoscopic moulding mechanism of the present invention is in order to reach the purpose that can without interruptionly contain the liquid of adhesive; Be that a continuous liquid supply device further is provided; The liquid that will contain adhesive is sent in the print cartridge of this print components, is able to long-time continuous and on the construction powder, carries out spatterwork.

Below just the above-mentioned mentioned relevant apparatus of stereoscopic moulding mechanism of the present invention, member and enforcement solid object forming method thereof elaborate.

See also Figure 1B; The inside of construction groove 15 is connected with the partial component of jacking equipment 14 and can does the oscilaltion displacement; And the inside of construction groove 15 has a construction platform 151; Construction platform 151 is to use the solid object of piling up moulding for the placed layer layer, and the location that is connected with jacking equipment 14, mainly goes up and down in the inside of construction groove 15 according to the drive of jacking equipment 14.

Please consult Figure 1A again, a plurality of confession powder grooves can comprise 2 and supply powder groove 131 and 132, mainly are arranged at the limit, the left and right sides of stereoscopic moulding mechanism 1, in order to provide the production solid object needed construction powder.As for; A plurality of temporary storage powder grooves can comprise 2 temporary storage powder grooves 121 and 122; It is arranged at the limit, the left and right sides of print components 11 respectively; And carry out left and right sides interlock with print components 11, supply powder groove 131 to match and be arranged at the same side, carry out follow-up construction shop powder in order to provide in construction powder to the temporary storage powder groove 121 with temporary storage powder groove 121; Supply powder groove 132 then to match and be arranged at the same side, carry out in construction powder to the temporary storage powder groove 122 follow-uply can two-way construction spreading powder in order to provide with temporary storage powder groove 122.

Present embodiment will be come into operation by first side to second side with print components 11 and implement three-dimensional thing type method proposition explanation, and wherein the left side of Figure 1A is represented in the first side, and the right side of Figure 1A is represented in the second side; But the actual operation mode is not as limit; Please consult Figure 1B and Figure 12 again, the function mode of stereoscopic moulding mechanism 1 of the present invention is: at first, and when the confession powder groove 131 in left side matches with temporary storage powder groove 121; Supply powder groove 131 to provide and be layed in the once needed construction powder 16 in construction platform 151 whole surfaces to the temporary storage powder groove 121 (shown in step S121 and Fig. 1 D); Powder to be supplied finishes, and print components 11 will drive temporary storage powder groove 121 and move to right side (step S122) by the left side, and temporary storage powder groove 121 inner construction powder 16 will be tiled in the process that moves on the surface of construction platform 151 (step S123); Until print components 11 moves to right edge (shown in Fig. 1 C); Supply powder groove 132 can with corresponding settings that match of temporary storage powder groove 122, supply powder groove 132 to provide equally and be layed in the once needed construction powder 16 in construction platform 151 whole surfaces to temporary storage powder groove 122 interior (step S124), wait to supply the powder completion after; Print components 11 side shifting of will turning left; And utilize inkjet technology spray printing on the part construction powder of being laid on the construction platform 151 16 to contain the liquid of adhesive, make this liquid and construction powder 16 be stained with glutinous and solidify (step S125), and the temporary storage powder groove 122 that is arranged at print components 11 right edge will re-lay one deck construction powder 16 subsequently in carrying out on the construction powder 16 that jet printing accomplishes (step S126); Treat print components 11 move to the left side and make once more supply powder groove 131 with temporary store up powder groove 121 match corresponding after; Supply powder groove 131 will provide once more in powder 16 to the temporary storage powder groove 121 (step S127), 11 of print components drive temporary storage powder groove 121 and move to the right side by the left side afterwards, and utilize inkjet technology spray printing high viscosity adhesive liquid on the part construction powder of being laid on the construction platform 151 16; Make adhesive liquid and construction powder 16 be stained with glutinous and curing (step S128); Then, the running software of stereoscopic moulding mechanism 1 will judge whether to have accomplished the production stage of solid object, if the result is for being; Completed product run step then; And jacking equipment 14 will drive construction platform 151 toward rising, and can remove unnecessary construction powder 16, to carry out pickup.

Otherwise if the result is not, the temporary storage powder groove 122 that then is arranged at print components 11 right edge will re-lay one deck construction powder 16 subsequently on the construction powder 16 that carries out the jet printing completion; Repeat above-mentioned steps S123 to S128 piles up and can accomplish solid object always layer by layer; Be the physical model of 3D, can solve the device that prior art is used unidirectional dusting and unidirectional spray printing, its print components action of unidirectional spray printing is earlier by locating to supply powder to terminal in the initial point place; Again by the destination county dusting to the initial point place; Begin spray printing by the initial point place more at last and locate to terminal, the previous operations time is too tediously long, the problem that the time can't make full use of.

In addition; In print components 11 every spray printing one decks or after producing certain thickness, jacking equipment 14 will drive the inside decline (as Fig. 1 D shown in) of construction platform 151 toward construction groove 15, and print components 11 will continue to cooperate the shop powder of temporary storage powder groove 121 and 122 and carry out the production of solid object; Until after the whole solid object moulding; Jacking equipment 14 will drive construction platform 151 toward rising, and can remove unnecessary powder, to carry out pickup.

See also Fig. 1 E, Figure 1A and Figure 1B, wherein Fig. 1 E is the a-quadrant enlarged diagram of Figure 1B, and is as shown in the figure; Supply the set inside of powder groove 131 that a plurality of rollers are arranged; Promptly two group of first roller 1311 and one second roller, 1312, the first rollers 1311 can be used as and stir the powder that supplies powder groove 131 inner, and 1312 on second roller is a certain amount of roller; In order to quantitatively to provide construction powder 16 to temporary storage powder groove 121, promptly be layed in the once needed construction powder 16 in construction platform 151 whole surfaces.

Please cooperate again and consult Figure 1A and Fig. 1 E; But the top of temporary storage powder groove 121 is provided with the lid 1211 that a left and right sides translation is opened; And lid 1211 is to be connected with the body of temporary accumulator tank 121 by a flexible member 1213, and present embodiment flexible member 1213 is a spring.In addition, the edge of this lid 1211 has a protruding sidepiece 1212.

Please cooperate again and consult Fig. 1 C and Fig. 1 E; Temporary powder groove 121 tops that supply also have a confession powder passage 1313 and a block piece 1314; Block piece 1314 is when temporary storage powder groove 121 contacts with confession powder groove 131; Replace mutually with the temporary protruding sidepiece 1212 that stores up the lid 1211 of powder groove 121,, make to supply powder groove 131 construction powder 16 to be delivered to temporary storage powder groove 121 inside through confession powder passage 1313 in order to the temporary storage of horizontally openable powder groove 121; Can shorten temporary storage powder groove 121 and the distance of the powder that supplies to fall between the powder groove 131, to reduce flying upward of powder.

Please consult Fig. 1 E again; After supplying powder groove 131 to supply powder to finish; Temporary storage powder groove 121 will be turned right away from supplying powder groove 131 because of the drive of print components 11; At this moment, block piece 1314 will no longer be replaced the protruding sidepiece 1212 of the lid 1211 of temporary storage powder groove 121, and lid 1211 also will be closed (shown in Figure 1A) because of the effect of flexible member 1213 elastic restoring forces.

See also Fig. 1 F and Fig. 1 H; Wherein Fig. 1 F is the structural representation that slotted eye and the perforate of bottom of the plate of the temporary storage powder groove shown in Fig. 1 E do not communicate, and Fig. 1 H is the perspective view of the Cover opening of temporary storage powder groove, and is as shown in the figure; The set inside of temporary storage powder groove 121 has a driver part; Can be eccentric wheel 1214, the plate 1215 that has a plurality of slotted eyes 12151 in order to drive moves, and the bottom and the plate 1215 corresponding zones of temporary storage powder groove 121 are provided with a plurality of perforates 1216; And these a plurality of perforates 1216 are level each other and separate setting; When the lid 1211 of temporary storage powder groove 121 is opened and supplied powder, eccentric wheel 1214 will drive plate 1215 and move to make between slotted eye 12151 and the perforate 1216 and be not communicated with, and can prevent that the construction powder from leaking; Otherwise; When the lid 1211 of temporary storage powder groove 121 is closed, eccentric wheel 1214 will drive plate 1215 and move and make slotted eye 12151 and be connected between the perforate 1216 (shown in Fig. 1 G), thus; The inner construction powder of temporary storage powder groove 121 will be in dropping on construction platform 151 under the drive of print components 11, and push away the construction powder flat and flatten so that the construction powder is tiled on the surface of construction platform 151 by the roller 1217 at rear.

Please consult Fig. 1 F and Fig. 1 H again, because set slotted eye 12151 is level each other and separate is provided with on the plate 1215 of the present invention, the powder mode that falls that therefore can segmentation supplies powder (shown in Fig. 2 B) on construction platform 151; So that the shop powder density on the construction platform 151 is consistent; Can solve prior art and when beginning to supply powder, just once all powder amounts are provided, cause when beginning to push away powder because weight and pushing, the density inequality and the unnecessary construction powder that form leading portion and back segment shop powder are pushed in the recovery cylinder; Shown in Fig. 2 A; When powder quantity not sufficient or shop powder when too much, the powder amount all can concentrate on mid portion, causes the construction powder density uneven; Make fine and close than the front end powder density; And the two ends of construction platform are not easy to be taped against the construction powder, must repeatedly spread powder and just can be taped against, and the construction powder density that is caused is uneven, the construction powder is wasted and the time is gone up waste and need repeatedly operation could accomplish the problem of once spreading powder.

As for, supply powder groove 132 identical with Fig. 1 E, Fig. 1 F, Fig. 1 G and Fig. 1 H with mode and the structure that temporary storage powder groove 122 combines, therefore do not reintroduce explanation.

Please consult Figure 1A and Fig. 3 again; Wherein Fig. 3 is the part-structure sketch map of Figure 1A, and is as shown in the figure, and stereoscopic moulding mechanism 1 of the present invention also has a printed product quality inspection and surveys a mechanism 17 and an image detecting element 18; Print quality testing agency 17 comprises a framework and on the carrying platform 91 of construction pedestal 9, is driven rollable paper 171; Print components 11 can be prior to carrying out spray printing before initial startup on the paper 171, and be arranged at the image detecting element 18 that supplies on powder groove 131 sides, and for example: this image detecting element 18 is a charge coupled cell (CCD); Whether figure that detection is printed and the jet-printing head 1121 (shown in Fig. 7 F) of judging print components 11 have the phenomenon of obstruction; If judged result is for being, then need clean print components 11 earlier, otherwise if judged result when denying; Then print quality testing agency 17 is with scrolling paper 171; Used paper 171 is furled to change clean paper 171, use, and print components 11 can carry out follow-up spray printing action on construction platform 151 in order to follow-up test.

See also Fig. 4 A; It is the part-structure sketch map of print components of the present invention; As shown in the figure, stereoscopic moulding mechanism 1 of the present invention more comprises a drive disk assembly 111, and for example: this drive disk assembly 111 is ball driving screw and linear slide rail etc.; It is to stride the both sides of being located at print components 11, mainly is used for driving print components 11 and moves.

Stereoscopic moulding mechanism 1 of the present invention is in order to prevent that the spray printing process from producing the construction powder that flies upward and being built-up on the drive disk assembly 111; And cause influences such as its service life and printing precision; The drive disk assembly dustproof construction that stereoscopic moulding mechanism of the present invention 1 is set; It forms (shown in Fig. 4 B) by dustproof plate 191 and flexible dustproof 192 of sheaths, intercepts in order to the environment that drive disk assembly 111 and dirt powder are flown upward, to guarantee the absolute dustproof of drive disk assembly 111.Wherein, dustproof plate 191 can be an ironware, is coated on around the drive disk assembly 111, and its function also can be used as the track of the flexible sheath 192 that prevents dust when walking except intercepting powder and drive disk assembly 111 contact.When print components 11 was turned left side shifting, the left side of flexible dustproof sheath 192 can receive the extruding of print components 11 and shrink, and right-hand part then prolongs.Otherwise, to turn right when moving when print components 11, the right-hand part of flexible dustproof sheath 192 can receive the extruding of print components 11 and shrink, and the left side then prolongs, and intercepts the purpose that powder contacts with drive disk assembly 111 to reach.

See also Fig. 5 A; It is the set construction groove dustproof construction sketch map of stereoscopic moulding mechanism of the present invention; In order to clearly demonstrate thin portion of the present invention structure, Fig. 5 A is that the part-structure with stereoscopic moulding mechanism shown in Figure 1 does not omit and indicates, and is as shown in Figure 5; In some embodiment; The construction groove dustproof construction that stereoscopic moulding mechanism of the present invention 1 is set is made up of fall powder dust proof member 20 and 21 of first air intake devices, this fall powder dust proof member 20 around be arranged at construction groove 15 around; This construction platform 151 then is arranged at the zone line of this powder dust proof member 20 that falls; This powder dust proof member 20 that falls comprise one have a plurality of through holes 2011 a lid 201 and a body 202, and directly fall for fear of powder and to cause the dirt powder to fly upward in the inside of body 202, more be provided with a plurality of ramp structures 2021 (shown in Fig. 5 B); And cooperating the absorption of first air intake device 21, the powder that the spray printing process is kicked up is collected in the collection powder groove 22 (shown in Fig. 5 C) by the through hole 2011 of lid 201, the ramp structure 2021 of body 202.

When preventing that print cartridge 112 from not operating; The powder that residual contain the liquid hardening of adhesive on the jet-printing head 1121 of print cartridge 112 and fly upward sticks together on jet-printing head 1121; And cause follow-up spray printing dysfunction; Can't continue spray printing and go out high-quality solid object; Therefore set attending device 30 mainly includes that a cage unit 31 and strikes off unit 32 on this carrying platform 91 that is arranged at this construction pedestal 9 respectively in the stereoscopic moulding mechanism 1 of present embodiment, and when print cartridge 112 did not operate, this cage unit 31 was used for sealing the jet-printing head 1121 (shown in Fig. 6 D) of print cartridge 112; Strike off unit 32 liquid that contains adhesive unnecessary on the jet-printing head 1121 is got rid of, to prevent jet-printing head 1121 contaminated and mummification (shown in Fig. 7 F).

See also Fig. 6 A and Fig. 6 B; Wherein Fig. 6 A is the part-structure sketch map of the set attending device of stereoscopic moulding mechanism of the present invention; Fig. 6 B is the cage cellular construction sketch map shown in Fig. 6 A, and shown in Fig. 6 A, cage of the present invention unit 31 comprises a protection cage 311 and the seal member of at least one 312; This protection cage 311 is arranged on the carrying platform 91 of stereoscopic moulding mechanism 1; And this at least one seal member 312 is arranged at protection cage 311 inside, mainly when print cartridge 112 does not operate, contacts with the bottom of print cartridge 112; Making protection cage 311 inner at least one seal members 312 contact with the jet-printing head 1121 of print cartridge 112 is connected; With sealing jet-printing head 1121 (shown in Fig. 6 D), can reach the liquid hardening that contains adhesive on the jet-printing head 1121 that prevents print cartridge 112, and prevent that powder from sticking together the effect on jet-printing head 1121.Certainly, in some embodiment, the quantity of seal member 312 can change according to the quantity of print cartridge 112.

When the mode of using spray printing to contain the liquid of adhesive is shaped; Glue point spouting velocity is up to 8m/s; In this ultrahigh speed hydrojet, when drop is sticky in powder moment, next door nanoscale starch end meeting thereby rebound flown upward; Or when supplying powder or pickup; All can produce powder and fly upward everywhere, protect cage 311 and just might receive the pollution of powder and need the dustproof device this moment, so the set attending device dustproof construction of the present invention comprises cage envelope dirt parts 33 (shown in Fig. 6 C) and a pair of scraper plate envelope dirt parts 4 (shown in Fig. 7 B) that strike off unit 32 envelope dirt of a pair of cage unit 31 envelope dirt.

Carry out spray printing running and protection cage 311 when idle when print cartridge 112, these cage envelope dirt parts 33 can reach the dustproof purpose by capping protection protection cage 311.These cage envelope dirt parts 33 are made up of body 331, Moveable lid body 332 and 333 of flexible members; This body 331 is to be fixedly arranged on the carrying platform 91; This Moveable lid body 332 is that part is sheathed on this body 331; This flexible member 333 can be a spring, and the one of which end is to be fixed on this body 331, and the other end then is connected with this Moveable lid body 332.

See also Fig. 6 D and Fig. 6 E; It is the generalized section of cage envelope dirt parts of the present invention running; Shown in Fig. 6 D, when this print cartridge 112 do not operate and towards these protection cage 311 directions near the time, the bearing frame 114 of this print cartridge 112 will be replaced with the Moveable lid body 332 of this cage envelope dirt parts 33 mutually; Move toward direction to promote this Moveable lid body 332 away from this protection cage 311; Promptly the b direction shown in the figure makes this protection cage 311 expose out, and makes the seal member 312 of this cage unit 31 receive that this bearing frame 114 contacts continuous action relation and contact with the bottom of this print cartridge 112 that (cage unit and bearing frame continuous action relation are to have the jet-printing head maintenance technology now to make flowing mode; Do not repeat them here), make jet-printing head 1121 and the sealing parts 312 of this print cartridge 112 contact to be connected and seal.What at this moment, this Moveable lid body 332 will be because of the bearing frame 114 of this print cartridge 112 continues to replace the state of always keeping unlatching.

Otherwise, see also Fig. 6 E, when this print cartridge 112 desires to carry out spray printing work; This print cartridge 112 will break away from this protection cage 311 tops; And move toward these construction platform 151 directions, a direction shown in promptly scheming, at this moment; The bearing frame 114 of this print cartridge 112 will not bestowed the active force of replacing to the Moveable lid body 332 of these cage envelope dirt parts 33; This Moveable lid body 332 is moved toward the direction of this protection cage 311 in response to the elastic-restoring force effect of this flexible member 333, and then cover should protection cage 311, prevent that the powder that flies upward from polluting and protect cage 311 to reach.

See also Fig. 7 A and Fig. 7 C; Wherein Fig. 7 A is the perspective view of the set cleaning dust proof member of stereoscopic moulding mechanism of the present invention; Fig. 7 C is the C zone enlarged diagram of Fig. 7 A, and shown in Fig. 7 A, cleaning dust proof member 4 of the present invention is arranged on the carrying platform 91 of stereoscopic moulding mechanism 1; The relative dual-side of this carrying platform 91 is plates 115 of difference framework print components 11; This plate 115 is set up on the drive disk assembly 111, drives print components 11 in a-b direction back and forth movement in order to the driving in response to drive disk assembly 111, so that print components 11 carries out spray printing on construction platform 151.

Please consult Fig. 7 A and Fig. 7 C again, have a protrusion rod member 1151 on these plate 115 sides, and see also Fig. 7 B; It is that the unit that strikes off shown in Fig. 7 A concerns sketch map with 4 groups of dust proof member of cleaning are upright, and is as shown in the figure, and this strikes off unit 32 is to include a rotating body 321, driving wheel group 322 and at least one scraper plate 323; It is rotatable that wherein this body 321 receives driving wheel group 322 drivings; This at least one scraper plate 323 is arranged at interlock on the body 321, and this scraper plate 323 can be the scraper plate of a rubber material; And this cleaning dust proof member 4 is made up of lid 41 and 42 of reposition elements; Present embodiment reposition element 42 is a torque spring, and this lid 41 is hubbed at this and strikes off on the unit 32, and is provided with a driven wheel 411 and is engaged and linked with driving wheel group 322; And this reposition element 42 also colludes and is hung on this and strikes off on the unit 32; So lid 41 through reposition element 42 can be back and forth rotationally with strike off unit 32 and be connected, rotate through lid 41 and make driven wheel 411 drive driving wheel group 322 driving scraper plate 323 and be one and open or closed condition, when scraper plate 323 unlatchings, be to present vertical setting (shown in Fig. 7 F); Otherwise, then appear when closing and be horizontally disposed with (shown in Fig. 7 C).

Please consult Fig. 7 B again; One side of this lid 41 has a route guidance unit 412; Its rubber-like plate, it comprises an inclined plane 4121 and a support surface 4122, sees also Fig. 7 C; When breaking away from this protection cage 311, print cartridge 112 moves toward these construction platform 151 directions; And this plate 115 moves to cleaning during dust proof member 4, and the protrusion rod member 1151 of this plate 115 will be along the guiding on the inclined plane 4121 of this route guidance unit 412 and through cleaning dust proof member 4 (shown in Fig. 7 D), because this route guidance unit 412 is elastic panels; Therefore be pressed on 4121 last times of inclined plane when protruding rod member 1151; To make this route guidance unit 412 produce displacement (shown in Fig. 7 D) downwards, and the protrusion rod member 1151 that makes this plate 115 carry out spray printing smoothly through cleaning dust proof member 4 (shown in Fig. 7 E) to drive on print components 11 to the construction platform 151.

Otherwise; Print when the print cartridge of this print components 11 112 and to accomplish or jet-printing head 1121 is when having dirt, this plate 115 will drive this print components 11 and move (promptly as shown in Figure 7, as to be moved by the past b direction of a) toward these cleaning dust proof member 4 directions; The protrusion rod member 1151 of this plate 115 will contact with the support surface 4122 of this route guidance unit 412 mutually; And move driven wheel 411 that the thrust that is produced connects this lid 41 through this plate 115 and drive driving wheel group 322 and rotate, so the lid 41 of this cleaning dust proof member 4 is pushed down, simultaneously; This scraper plate 323 is also because of the drive vertical unlocking of driving wheel group 322; Make this jet-printing head 1121 through the scraper plate 323 on this cleaning dust proof member 4, the liquid that contains adhesive unnecessary on this jet-printing head 1121 is got rid of, to prevent jet-printing head 1121 contaminated and mummification.

Please consult Fig. 7 C and Fig. 7 D again; As shown in the figure; When the scraper plate 323 of this cleaning dust proof member 4 need not operate, the protrusion rod member 1151 of this plate 115 did not contact with the support surface 4122 of this route guidance unit 412 at this moment, so this lid 41 receives the reverse reset of reposition element 42; So strike off unit 32 through these lid 41 coverings, can reach the effect that the liquid contamination that prevents the powder that flies upward or contain adhesive strikes off unit 32.

Please consult Fig. 7 B and Fig. 7 F again; After this scraper plate 323 is accomplished cleanings and this print cartridge 112 and is left; The elastic-restoring force of the reposition element 42 of this cleaning dust proof member 4 will reverse that this lid 41 resets and driving belt driving wheel 411 drives driving wheel group 322 and rotates; So that scraper plate 323 turns to closed condition, this lid 41 will cover once more and strike off unit 32, can reach the effect that the liquid contamination that prevents the powder that flies upward or contain adhesive strikes off unit 32.

See also Fig. 8 and Figure 13, it is the operating environment dustproof construction sketch map in stereoscopic moulding mechanism of the present invention for Fig. 8, and it is to see structural representation outside the stereoscopic moulding mechanism of the present invention for Figure 13.As shown in the figure; The inside processing environment of stereoscopic moulding mechanism 1 of the present invention is to utilize cover cap 8 to be isolated from the outside; Owing to also can cause powder to fly upward during the running of inside processing environment; Influence the running and the life-span of inner member for fear of powder, in embodiment, an operating environment dustproof construction can be set in the inside processing environment; This operating environment dustproof construction comprises a perforate 51, a pipeline 52 and one second air intake device 53; This perforate 51 is arranged on the construction pedestal 9 and receives cover cap 8 to hide the inside processing environment (not icon) in stereoscopic moulding mechanism 1, and this pipeline 52 is linked between perforate 51 and one second air intake device 53 as the control of dust transfer conduit, so this stereoscopic moulding mechanism 1 is covered with 8 times operations of cover cap in an end face outside; With so that operating environment produces a negative pressure, so that the powder that flies upward is inhaled in retracting device (not icon).

See also Fig. 9; It is the part-structure sketch map of the temporary storage powder groove shown in Figure 1A; Like Fig. 1 F, G and shown in Figure 9; In some embodiment, the set inside of temporary storage powder groove 121 has a storage powder groove dustproof construction, and this storage powder groove dustproof construction includes a lid 1211, a flexible member 1213 and temporary and stores up a set ramp structure 1218 in the powder groove 121; This lid 1211 is arranged on this temporary storage powder groove 121 and through the body of flexible member 1213 with temporary accumulator tank 121 and is connected, but reaches the notch action that the temporary storage of sealing powder groove 121 was opened or closed in left and right sides translation.

When supplying powder when lid 1211 unlatchings of keeping in storage powder groove 121; Guide the confession powder through being provided with of this ramp structure 1218; And when preventing to supply powder because of the gravity situation that powder causes the construction powder to fly upward that directly falls takes place, and after supplying powder to finish, this lid 1211 will be closed; Can be limited in its inner confined space keeping in the dirt powder that flies upward that is produced when storage powder groove 121 is spread powder, to reach temporary storage powder groove 121 dustproof functions.

See also Figure 10 A, it is the generalized section that stereoscopic moulding mechanism of the present invention is provided with heating and air-returning device, and is as shown in the figure; Heating and air-returning device of the present invention can comprise at least one heater 61, and this heater 61 can be a quartz heating-pipe, but not as limit; Be arranged at the side of roller 1217, main in being stained with heating, drying on the glutinous liquid that contains adhesive with the construction powder immediately behind print components 11 spray printings, make itself and construction powder 16 cohere curing; In order to spreading powder once more, the speed that can accelerate to spread powder is in some embodiment; Heating and air-returning device also can have a heat sensor (not icon); Mainly be used for the temperature of sensing heating and control heater 61 runnings, when sensing heater 61 is heated to a certain design temperature, close heater immediately according to sensing result.

Please consult Figure 10 A again and cooperate Figure 10 B; Wherein Figure 10 B is the perspective view shown in Figure 10 A, and is as shown in the figure, causes the damage of print components 11 for fear of the hot gas convection current of heater 61; Heating and air-returning device also can include a return air channel 62 (shown in Figure 10 A and B); This return air channel 62 can be connected with extractor fan (not icon) through pipeline 63 (shown in Fig. 5 A), can the flow direction of heater 61 hot gas that produces be guided to this return air channel 62, to avoid thermal current through the print cartridge 112 of this print components 11 and cause the damage of jet-printing head 1121; In some embodiment; This heater 61 be provided with the position with this return air channel 62 be good in the same side, in addition, this return air channel 62 collocation extractor fans are except the controlled flow direction that heats gas; Also can the powder that print components 11 carries out being kicked up in the spray printing process be drawn to retracting device, reach the proofing dust and protecting effect of an ink gun.

See also Figure 11, it is stereoscopic moulding mechanism of the present invention institute continuous liquid supply device structure sketch map, and is as shown in the figure, and the continuous liquid supply device 70 of present embodiment can comprise a fluidsupply container 71, first aspirator 72, second aspirator 73 and an accumulator tank 74.Wherein, This fluidsupply container 71 is positioned over the outside of stereoscopic moulding mechanism 1; In order to storing the required liquid that contains adhesive 711 of these print components 11 spray printings, and this fluidsupply container 71 imports internal reservoir liquid 711 in these print cartridge 112 through connecting line guiding and first aspirator, 72 swabbing actions; And this print cartridge 112 also can import inner excess liquid 711 in the accumulator tank 74 through connecting line guiding and second aspirator, 73 swabbing actions.

When these print components 11 runnings; Utilize the liquid that contains adhesive 711 liquid measures of the required injection of these print cartridge 112 specking numbers of running computed in software of stereoscopic moulding mechanism 1; Then utilize this first aspirator 72 in this fluidsupply container 71, to draw to these print cartridge 112 inside greater than some a little amounts of required spray printing amount; After treating that print cartridge 112 spray printings are accomplished, the inner unnecessary adhesive liquid of print cartridge 112 then 711 second aspirators 73 capable of using suction and flow in the accumulator tank 74.First aspirator 72 and second aspirator 72 are a pumping in the present embodiment.

Again; First aspirator 72 of the present invention has unidirectional non-return function; Therefore can fluidsupply container 71 be positioned over any position of the end in the jet-printing head height of print cartridge 112; And the height of the insertion contact liq 711 of the Level Detection conduit 113 of this print cartridge 112 can be used as control and detects height and the capacity that can deposit the liquid 711 that contains adhesive in the print cartridge 112.If this accumulator tank 74 is under the situation of cleaning, be to pour into again in the outside fluidsupply container 71 to reuse in addition.

In sum; Stereoscopic moulding mechanism of the present invention is provided with respectively in its dual-side and supplies powder groove and temporary storage powder groove; Make to supply the powder groove can provide the construction powder to the temporary storage powder groove that matches, and print components can drive first and second temporary storage powder groove and carries out the confession powder of two-way powder laying, and carry out two-way spray printing; Can carry out two-way confession powder, reach shop powder and printing, to promote the speed of shop powder and spray printing.

Stereoscopic moulding mechanism of the present invention and forming method thereof; Be layed in the once needed construction powder in the whole surface of construction platform to temporary storage powder groove through supplying the powder groove quantitatively to provide; And a plurality of slotted eyes that plate comprised of temporary storage powder trench bottom are level each other and separate setting; The mode of powder of can paragraphing supplies powder on the construction platform, so that the shop powder density on the construction platform is consistent.

In addition; Stereoscopic moulding mechanism of the present invention and forming method thereof; Through dust guards such as drive disk assembly dustproof construction, construction groove dustproof construction, attending device dustproof construction, operating environment dustproof construction, storage powder groove dustproof construction are set; In order to prevent that this construction powder that this shop powder and print job are kicked up from polluting, impel the device of stereoscopic moulding mechanism and member all can keep normal operation at any time, reach comprehensive absolute the preventing dust of entire equipment; Moreover this attending device dustproof construction can be protected the cage unit of attending device and strike off the unit when not carrying out jet printing, to reach dustproof and to prevent the contaminated purposes such as doing words that reaches of jet-printing head.

Moreover; Stereoscopic moulding mechanism of the present invention and forming method thereof; And can judge whether jet-printing head has obstruction, and be provided with that heating and air-returning device shortens time of waiting for shaping and drying and as effects such as ink gun proofing dust and protecting through print quality testing agency and image detecting element.Therefore, stereoscopic moulding mechanism of the present invention and forming method thereof have the value of industry.

Claims (4)

1. heating and air-returning device, it is applicable to a stereoscopic moulding mechanism, this stereoscopic moulding mechanism has one and prints an assembly and a construction platform, comprises at least:

One heater, it produces a hot gas to solidify this liquid when a print cartridge spray printing one liquid of this print components is to this construction platform;

One return air channel, this print cartridge of its contiguous this print components is provided with, and this return air channel and this heater are arranged at the same side of this print components;

One air intake device, it is connected with this return air channel, in order to draw a construction powder that this print components running kicked up through this return air channel and this hot gas is guided to this return air channel.

2. heating and air-returning device according to claim 1 is characterized in that this heating and air-returning device also has a heat sensor, controls this heater running in order to the temperature of this heater of sensing and according to sensing result.

3. heating and air-returning device according to claim 1 is characterized in that this return air channel is connected with this air intake device through a pipeline.

4. heating and air-returning device according to claim 1, this liquid that it is characterized in that this print components institute spray printing is an adhesive liquid.

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