CN102922884A - High-resolution handheld ink-jet printer with upper and lower idler wheels and piezoelectric type spray nozzle - Google Patents
High-resolution handheld ink-jet printer with upper and lower idler wheels and piezoelectric type spray nozzle Download PDFInfo
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- CN102922884A CN102922884A CN2012103083454A CN201210308345A CN102922884A CN 102922884 A CN102922884 A CN 102922884A CN 2012103083454 A CN2012103083454 A CN 2012103083454A CN 201210308345 A CN201210308345 A CN 201210308345A CN 102922884 A CN102922884 A CN 102922884A
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Abstract
The invention discloses a high-resolution handheld ink-jet printer with upper and lower idler wheels and a piezoelectric type spray nozzle. The high-resolution handheld ink-jet printer comprises an ink path system part and a circuit part. The ink path system part comprises an ink box, an adjustable ink filter, the piezoelectric type spray nozzle, the upper idler wheel and the lower idler wheel. An ink supply needle on the adjustable ink filter is connected with the ink box; an ink outlet of the adjustable ink filter is connected with an ink inlet end of an ink conveying pipe; an ink outlet end of the ink conveying pipe is connected with an ink inlet of the piezoelectric type spray nozzle; and ink is sprayed from the spray nozzle. The upper idler wheel is arranged above the piezoelectric type spray nozzle; and the lower idler wheel is arranged under the piezoelectric type spray nozzle. The circuit part is composed of a master control board, a jet printing switch, a rotary coder, a display screen and a handle. The high-resolution handheld ink-jet printer has the following advantages of solving the problem that the traditional high-resolution handheld ink-jet printer with the piezoelectric type spray nozzle can only spray the code sidewards or downwards and can not spray the code upwards, and avoiding the phenomena of ink hanging, ink dropping or ink discontinuity occurring when the traditional handheld ink-jet printer with the piezoelectric type spray nozzle sprays the code sidewards or downwards.
Description
Technical field
The invention belongs to the manufacturing field of ink jet numbering machine equipment, particularly a kind of being easy to carry, the upper bottom roller piezoelectric type shower nozzle high-resolution of hand-holdable operation is handed ink jet numbering machine.
Background technology
Hand-held ink jet numbering machine performance and characteristics:
Hand-held ink jet numbering machine is furnished with large capacity rechargeable type lithium battery, make its portability convenient, can be widely used in the coding signs such as the external packing of food, beverage, wine etc. and various steel pipe, woven bag, plasterboard, the place to use can be in the workshop, also can be in the warehouse, logistics freight yard, office etc., but spray printing date of manufacture, operation serial number, produce order of classes or grades at school number, false proof anti-channel conflict code (or stealthy character), Business Name, graphic icons etc.
Another specific function-antiforge function of hand-held ink jet numbering machine can use invisible printing ink false proof.But the invisible printing ink spray printing goes out hidden pattern or literal, and stealth is namely without color, and naked eyes be cannot see, but under UV-irradiation, can present clear light, bright spray printing content.Present most domestic pharmaceutical product packaging or some have the product of dividing the sales region all to adopt the invisible printing ink coding false proof.
The coding mode of hand-held ink jet numbering machine is mainly decided by shower nozzle.
According to the practical situations at present domestic and international shower nozzle technology and hand-held ink jet numbering machine market, hand-held ink jet numbering machine mainly uses following several shower nozzle technology:
1, heat foamable formula ink-jet (TIJ-Thermal Ink-Jet) shower nozzle
The operation principle of heat foamable formula ink-jet technology is by the electric heating assembly (normally thermal resistance) on the ink jet-print head (silicon base of inkjet ink chamber), in 3 microseconds, be heated to rapidly 300 degrees centigrade, make the liquid printing ink vaporization of nozzle bottom and form bubble, steam blanket avoids ink and heating component isolation with all ink heating in the nozzle.After heating signal disappeared, the heating ceramic surface began cooling, but residual waste heat still impels bubble to expand into rapidly maximum in 8 microseconds, and a certain amount of ink droplet of consequent pressure compression overcomes surface tension crushing failure at high speed delivery nozzle.Along with temperature continues to descend, bubble begins to be contraction state.The former ink of extruding outside spray orifice be subject to bubble break strength traction and form the dispersion ink droplet, the rear end makes ink droplet begin to separate because of the contraction of ink, ink behind the bubble collapse in ink droplet and the nozzle just separates fully, ink then sees through lasting inflow of the runner that is communicated with ink-jet district and ink storage district and replenishes, thereby finishes the process of an ink-jet.The result that ink droplet of every ejection all is above-mentioned flow process Collaboration.
Heat foamable type print speed is very fast, only is ejected through just pushing but shortcoming is ink, and strength can not be concentrated, and ink dot is vulnerable to inertia effects and print head and pulls unclearly, and produces inhomogeneous or ink residue.Another problem is, the ink-jetting style of bubble type, and because its print head often is under the high-temperature situation, meeting is so that lettering easy loss on first watch, so need reduce cost with the mode that print head and ink cartridges are unified.
With the Handheld type code spraying machine of heat foamable formula ink-jet (TIJ-Thermal Ink-Jet) shower nozzle manufacturing because the pixel of its shower nozzle is high, font that can the spray printing high-resolution or bar code trade mark etc., but can't use quicksetting ink, can't use in the impermeability material.As using in permeability materials such as timber, paper, can not use in impermeability materials such as metal, plastics.
2, piezoelectric type shower nozzle (Piezoelectric)
The piezoelectric type shower nozzle is by applying voltage to piezo-electric crystal, making it to occur at a high speed and slight deformation, thereby the printing ink in the nozzle is extruded.Do the time spent when piezo-electric crystal is subject to extraneous pulse voltage, piezo-electric crystal just produces distortion, thereby causes the volume reducing of nozzle ink cavity.Like this, an oil dripping China ink just penetrates from nozzle.Then, piezo-electric crystal restores to the original state, because surface tension effects, new printing ink enters nozzle.By the nozzle that is arranged side by side in a large number, just can obtain desirable spray printing width and resolution.(annotate: piezo-electric crystal is that the semiconductor piezoelectric crystal material by a kind of PZT of crying is made)
With the Handheld type code spraying machine of piezoelectric type shower nozzle manufacturing because what use is the piezoelectric type technology, and the pixel of its shower nozzle is high, font that can the spray printing high-resolution or bar code trade mark etc.Both can use quicksetting ink, also can use oil-based ink, can use in permeability and impermeability material.But the both infiltration such as spray printing timber, paper materials, but also impermeability materials such as spray printing metal, plastics.
3, drip-type (drop on demand be called for short DOD formula) shower nozzle as required
The operation principle of drip-type as required: shower nozzle is comprised of a plurality of high-accuracy valves, and when coding, the valve corresponding with font opens and closes rapidly, and ink relies on inner constant pressure ejection, forms character or figure on the surface of motion.What data signal produced at paper is a China ink, rather than Chinese stick stream.
Handheld type code spraying machine with as required drip-type shower nozzle manufacturing uses as required drip-type technology owing to shower nozzle, spray printing effect out is point-like, can use quicksetting ink, can be on the impermeability material coding use but font that can not the spray printing high-resolution or bar code trade mark etc.
Divide the hand-held ink jet numbering machine that mainly contains in the market above three kinds of shower nozzles by technology, though the as required Handheld type code spraying machine multi-directionally coding of drip-type shower nozzle, owing to be dot matrix, the font of ejection is raster font.The height of a word generally forms by 7 to 16, thus can't spray printing brand logo and bar code because counting less, in the scope of application certain limitation is arranged.
Next is the hand-held ink jet numbering machine of high-resolution of thermal bubble type shower nozzle, can be towards the side, spray printing down, but spray printing literal, brand logo and bar code.But since its can only spray printing on permeable material (such as plank, carton etc.), so on using significant limitation is arranged also.
Existing piezoelectric type shower nozzle high-resolution is handed ink jet numbering machine, although many advantages are arranged, also has at present following problem:
1. ink feeding system comprises print cartridge, filter, shower nozzle and to the ink-feeding tube of shower nozzle ink supply, it is realized according to siphon principle the control for ink dot, regulate for ink dot by the height of adjusting print cartridge and shower nozzle or with flow-limiting valve, realize appropriate ink supply, the defective of this ink feeding system is print cartridge and nozzle not to be arranged on suitable relative position, do not make ink feeding system be in accurate being fit to for ink dot, can only reach towards the side coding down, up coding.
2. because ink feeding system is in accurate being fit to for ink dot, namely be not in towards the side and suitable equalization point all down.When nozzle during towards the different directions coding, just changed original suitable for ink dot; When print cartridge when slightly high or body is slightly rare with respect to the height of nozzle, nozzle can be hung China ink, sticks with paste mouth or drip China ink; When print cartridge when slightly low or body is slightly dense with respect to the height of nozzle, the nozzle China ink that can break.Nozzle China ink can occur hanging, drip China ink or lack black phenomenon when in use, reaching coding down towards the side.
3. because the hand-held ink jet numbering machine of existing piezoelectric type spray high-resolution is established four rolling in nozzle face, and print cartridge is located at the below of shower nozzle, when nozzle towards by spray object coding the time, because the plane of four rolling and whole print cartridge is with very close by the spray object, so collide easily with by the spray object, operation is used very inconvenient; Simultaneously, because four rolling occupies very large tracts of land, thereby can't coding on the object of small size.As shown in Figure 1.
4. when carrying out the coding operation, four rolling is adjacent to by spray object footprint area large, and very large restriction is then arranged when turn-taking the arc coding; So can not arc rolling coding on the object of small size.As shown in Figure 1.
5. embedded OS is not installed on the master control borad, and on computers editing and composing coding information downloads to coding information in the hand-held ink jet numbering machine by USB flash disk, then calls coding information and carries out coding.
6. battery is installed on ink jet numbering machine inside, can not plug taking-up, after the rechargeable battery electric energy is used up, must shut down and just can re-use after again charging.As shown in Figure 1.
Fig. 1 is a kind of use schematic diagram of the hand-held ink jet numbering machine of piezoelectric type shower nozzle high-resolution of prior art: 16 display screens, 17 piezoelectric type shower nozzles, 18 left wheel, 19 right rollers, 20 print cartridges, 21 battery cases, 22 coding switches, 23 are by the spray object.As can be seen from the figure, the spacing about the hand-held ink jet numbering machine of the piezoelectric type shower nozzle high-resolution of prior art between two rollers is large, and print cartridge and nozzle are set up at grade, therefore can't with two rollers between the quilt that equates of spacing spray object and use.And collide easily and by the spray body surface, more be difficult to arc rolling coding.Battery is contained in the battery case, can't take out charging, and it is just chargeable charger must to be inserted charging socket.
In view of above some, the hand-held ink jet numbering machine of piezoelectric type shower nozzle in the market uses in operation also has very large defective.
Summary of the invention
In order to solve the existing existing following problem of piezoelectric type shower nozzle high-resolution Handheld type code spraying machine:
1. can only be towards side and coding down, up coding.As can not be on ceiling or the bottom coding of large article.
2. nozzle can be hung China ink, drips China ink or lack China ink during towards side and coding down.
Small size by the spray object plane on can not rotation roller, can't coding.Namely large object can only be sprayed, wisp can not be sprayed.As can't being spray printing bar code, icon information on 8 centimetres the iron flask at diameter.
4. can not arc rolling coding on the quilt spray object plane of small size.As can't being the information of an arc of spray printing on 15 centimetres the iron flask at diameter.
5. function is simple, without embedded OS, does not have message-editing function, can only use the computer edit file, then downloads on the hand-held ink jet numbering machine of piezoelectric type shower nozzle to use.
6. when the rechargeable battery electric energy is used up, must shut down and after refilling electricity, just can continue to use.
The invention provides a kind of lightweight, volume is little, function is strong, the hand-held ink jet numbering machine of portable upper bottom roller piezoelectric type shower nozzle high-resolution.
The present invention addresses the above problem by the following technical solutions, and it comprises ink components of system as directed and circuit part.
The ink components of system as directed mainly comprises print cartridge, adjustable ink filter device, ink-feeding tube, piezoelectric type shower nozzle, upper roller, bottom roller.The print cartridge storage ink, adjustable ink filter device is regulated screen pack density, linking to each other with print cartridge for tattooing needle on the adjustable ink filter device, the ink outlet port of adjustable ink filter device links to each other with ink-feeding tube, the ink-outtake end of ink-feeding tube links to each other with the ink entrance of piezoelectric type shower nozzle, and ink enters the piezoelectric type shower nozzle and sprays through nozzle.The internal diameter of ink-feeding tube is 2.5 millimeters.
The lower transverse plane of described print cartridge and the lower transverse plane of piezoelectric type shower nozzle are positioned at the top of handle on the same level face.
The nearly nozzle end of print cartridge plane is parallel with the nozzle plane of piezoelectric type shower nozzle, and two plan ranges are 4-10mm.
Described upper roller, bottom roller, its upper roller is positioned at the top of nozzle, and bottom roller is positioned at the below of nozzle.Upper roller and bottom roller and quilt spray object contact also support the hand-held ink jet numbering machine of piezoelectric type shower nozzle and are being rolled by the spray object.Upper roller closely links to each other by rubber belt with rotary encoder, and upper bottom roller relies on and sprayed the object friction rolling, and upper roller rolling driven rotary encoder rotates.
Described adjustable ink filter device be contained in print cartridge under.Adjustable ink filter device is the device that can manually adjust different screen pack density, and according to using different types of ink to adjust different screen pack density, during such as use quick drying ink or use oily ink, the density of the screen pack of adjusting is different.
Described piezoelectric type shower nozzle is provided with more than 100 jet orifice.
Circuit part comprises master control borad, spray printing switch, rotary encoder, display screen, handle, can plug battery case.Its master control borad is contained in the rear of display screen, below master control borad dress and display screen, handle is housed, at handle the spray printing switch is housed, the handle bottom is equipped with and can be plugged battery case, the rear portion that can plug the battery case electricity has can plug snap-fastener, the in-built chargeable lithium cell of battery case can be plugged, the support that battery case also is simultaneously the hand-held ink jet numbering machine of upper bottom roller piezoelectric type shower nozzle high-resolution can be plugged.The below of master control borad is provided with power switch.
Master control borad links to each other with spray printing switch and rotary encoder.Master control borad, piezoelectric type shower nozzle, rotary encoder are by the chargeable lithium cell power supply that can plug in the battery case.At the master control borad rear USB socket is set, can inserts USB flash disk upgrading embedded OS and coding software, but also download pictures and coding data.
Described rotary encoder is existing known products, and its function is to send the pulse signal of certain frequency, and the frequency of pulse signal is to be determined by the speed that rotary encoder rotates.
The described battery case that plugs, complete machine have two can plug alternately charging of battery case, uses in turn, reaches the purpose that the hand-held ink jet numbering machine of bottom roller piezoelectric type shower nozzle high-resolution can use continuously.
Basic functional principle of the present invention is: ink feeding system of the present invention is with atmospheric pressure and the gravity power as ink feeding system, the relative position of the print cartridge of ink supply and nozzle is set in nozzle towards the side, reach all balance suitable for ink dot of three directions that can not occur dripping China ink up, hang China ink or lack China ink down, adjust adjustable ink filter device so that can be because of using different inks to change original 3 direction ink-supplying balanced points according to using different inks, so that towards the side, when reaching coding up down, can both reach clearly coding effect.Bottom roller in the use, print cartridge are located at the handle top, therefore with little by the contact-making surface of spray object, and can coding on the quilt spray object of small size.
Its circuit part loads embedded OS at master control borad, and is powerful.Use touch display screen to need not keyboard, setting can plug battery case and can alternately charge, and uses in turn to plug battery case, keeps not shutting down continuous operation.
The present invention has following advantage: the hand-held ink jet numbering machine that has solved existing piezoelectric type shower nozzle reaches coding down, the defective of coding up only towards the side; So that can be with the hand-held ink jet numbering machine of piezoelectric type shower nozzle high-resolution on ceiling or the bottom spray printing bar code of certain large-sized object or icon literal etc.Solve the hand-held ink jet numbering machine of existing piezoelectric type shower nozzle from turning to coding meeting down China ink to occur hanging towards the side coding, stick with paste mouth or dripping China ink, turn to side coding meeting the problem of disconnected China ink to occur from downward coding.The hand-held ink jet numbering machine that has solved existing piezoelectric type shower nozzle can only spray large object, can not spray the problem of wisp.The hand-held ink jet numbering machine that has solved existing piezoelectric type shower nozzle can not be in the problem of being sprayed arc rolling coding on the object plane of small size.After the hand-held ink jet numbering machine rechargeable battery electric energy that has solved existing piezoelectric type shower nozzle is used up, must shut down the problem of again charging and just can re-use treated.
Description of drawings
With reference to the accompanying drawings and embodiment, the invention will be further described.
So Fig. 1 hand-held ink jet numbering machine that is existing piezoelectric type shower nozzle is because nozzle face has the schematic diagram that four rolling can't coding on wisp.
Wherein, 16 display screens, 17 piezoelectric type shower nozzles, 17a nozzle, 18 left wheel, 19 right rollers, 20 print cartridges, 21 battery cases, 22 coding switches, 23 are by spray object, 24 charging sockets, 25 handles.
Fig. 2 is that the hand-held ink jet numbering machine of bottom roller piezoelectric type shower nozzle high-resolution is the use schematic diagram of coding on 8 centimetres the round can at diameter in the present invention.
Fig. 3 is the overall structure schematic perspective view of the hand-held ink jet numbering machine of bottom roller piezoelectric type shower nozzle high-resolution in the present invention.
Fig. 4 is the hand-held ink jet numbering machine of bottom roller piezoelectric type shower nozzle high-resolution left side structural representation in the present invention.
Fig. 5 is the hand-held ink jet numbering machine right side of bottom roller piezoelectric type shower nozzle high-resolution structural representation in the present invention.
Extremely shown in Figure 5 such as Fig. 2, wherein, transverse plane under transverse plane, 3 handles, 4USB interface, 5 print cartridges, the nearly nozzle end of 5a print cartridge, the 5b print cartridge, 6 adjustable filtering devices, 6a can plug battery case, 10 and can plug battery case snap-fastener, 11 master control borads, 12 rotary encoders, 13 touch display screens, 14 upper rollers, 15 bottom rollers for tattooing needle, 7 coding switches, 8 ink-feeding tubes, 9 under 1 power switch, 2 piezoelectric type shower nozzles, 2a nozzle, the 2b shower nozzle.
The specific embodiment
Below implementing is to further explanation of the present invention and additional, and the present invention is not constituted any limitation.
Extremely shown in Figure 5 such as Fig. 2, upper bottom roller piezoelectric type shower nozzle high-resolution is handed ink jet numbering machine, because ink kind is different, its viscosity is not identical yet, so before the print cartridge 5 of packing into, determine to use first the ink of which kind of class, then adjust adjustable ink filter device 6, the hand-held ink jet numbering machine of then print cartridge 5 being packed into, the tattooing needle 6a that supplies on the adjustable ink filter device 6 just being inserted in the print cartridge 5 at this moment, ink enters adjustable ink filter device 6, enters ink-feeding tube 8 again, enters the ink entrance of piezoelectric type shower nozzle 2 by the ink outlet port of ink-feeding tube 8.
Turn on the power switch 1, touch and press display screen 13 display system interfaces, the content of editor's spray printing of wanting is pressed the spray printing membrane keyboard, makes it to be in state to be painted.During use, operating personnel hold hand-held ink jet numbering machine, piezoelectric type shower nozzle 2 and upper roller 14 bottom rollers 15 are pressed in the position of being wanted spray printing by the spray body surface, then press coding switch 7 with forefinger, can be with nozzle 2a along being rolled by the spray body surface, this moment, main controller was namely started working, the speed of rolling forward can reflect from the pulse frequency that rotary encoder 12 produces, master control borad 11 carries out the inside counting according to rotary encoder 12 pulse signals that receive, when the umber of pulse that count down to setting, just produce an injection signal that drives piezoelectric type shower nozzle 2, piezoelectric type shower nozzle 2 just according to internal memory spray a row ink dot as the number dot matrix, spray from nozzle 2a.Its spray printing frequency is to be determined by the speed that the translational speed of piezoelectric type shower nozzle 2 and rotary encoder 12 rotate, and the hand-held ink jet numbering machine of upper bottom roller piezoelectric type shower nozzle high-resolution promotes forward faster, and nozzle sprays sooner.
Independently operation system of software need not the computer editing and gets final product spray printing information, but as needing the spray printing icon, then need to make first the BMP format picture with drawing software on computers, be kept in the USB flash disk, with inserting the hand-held ink jet numbering machine USB socket of piezoelectric type shower nozzle in the USB flash disk, the USB flash disk picture is written into piezoelectric type shower nozzle Handheld type code spraying machine for calling.
Rechargeable battery power supply can be without electric workspace various product informations of spray printing in the external packing at most of product by way of manual operation.This Handheld type code spraying machine is applicable to the product external packagings such as common carton, food, beverage, medicine, building materials.Concrete such as large steel plate, ceiling, stone slab, earthen-ware pipe material, wood plank, container etc.
Only be the specific embodiment of the present invention in sum.But protection scope of the present invention is not limited to this.Anyly be familiar with those skilled in the art in the technical scope that the present invention discloses, can expect easily changing or replacing, its variation or replace all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the described protection domain of claim.
Claims (7)
1. a upper bottom roller piezoelectric type shower nozzle high-resolution is handed ink jet numbering machine, it is characterized in that: the hand-held ink jet numbering machine of this piezoelectric type shower nozzle high-resolution comprises master control borad 11, display screen 13, piezoelectric type shower nozzle 2, rotary encoder 12, print cartridge 5, upper roller 14, bottom roller 15, coding switch 7, handle 3, is sprayed object 23.
2. a kind of upper bottom roller piezoelectric type shower nozzle high-resolution is handed ink jet numbering machine as claimed in claim 1, and it is characterized in that: described piezoelectric type shower nozzle 2 must be the piezoelectric type shower nozzle.
3. a kind of upper bottom roller piezoelectric type shower nozzle high-resolution is handed ink jet numbering machine as claimed in claim 1, and it is characterized in that: the nozzle 2a plane parallel of described print cartridge 5 nearly nozzle end 5a planes and piezoelectric type shower nozzle 2, two plan ranges are 4-10mm.
4. a kind of upper bottom roller piezoelectric type shower nozzle high-resolution is handed ink jet numbering machine as claimed in claim 1, it is characterized in that: 5 times transverse plane 5b of described print cartridge and 2b plane, piezoelectric type shower nozzle lower end place the handle top on the same level face.
5. a kind of upper bottom roller piezoelectric type shower nozzle high-resolution is handed ink jet numbering machine as claimed in claim 1, and it is characterized in that: described rotary encoder 12 links to each other with master control borad 11 and coding switch 7.
6. a kind of upper bottom roller piezoelectric type shower nozzle high-resolution is handed ink jet numbering machine as claimed in claim 1, it is characterized in that: described upper roller 14 is positioned at the top of nozzle, the below that bottom roller 15 is positioned at nozzle, upper roller 14 and bottom roller 15 with by spray object 23 Surface Contacts, and support the hand-held ink jet numbering machine of piezoelectric type shower nozzle high-resolution and rolled by spray object 23 surfaces.
7. a kind of upper bottom roller piezoelectric type shower nozzle high-resolution is handed ink jet numbering machine as claimed in claim 1, and it is characterized in that: described display screen 13 is tangibly liquid crystal displays, need only operate use by touch display screen 13, removes in addition without any other keyboard.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103083454A CN102922884A (en) | 2012-08-25 | 2012-08-25 | High-resolution handheld ink-jet printer with upper and lower idler wheels and piezoelectric type spray nozzle |
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| CN2012103083454A CN102922884A (en) | 2012-08-25 | 2012-08-25 | High-resolution handheld ink-jet printer with upper and lower idler wheels and piezoelectric type spray nozzle |
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| CN105459598A (en) * | 2015-11-30 | 2016-04-06 | 武汉先同科技有限公司 | Handheld ink jet printer |
| CN105946374A (en) * | 2016-06-27 | 2016-09-21 | 北京赛腾标识系统股份公司 | Portable movable spray printing device |
| CN107599644A (en) * | 2017-11-07 | 2018-01-19 | 广州市挚联数码科技有限公司 | A kind of handheld-type intelligent nanometer ink jet numbering machine |
| CN107650516A (en) * | 2017-10-19 | 2018-02-02 | 天津王朝包装印刷制品有限公司 | A kind of ink jet numbering machine of convenient use |
| CN108711009A (en) * | 2018-05-18 | 2018-10-26 | 武汉先同科技有限公司 | One kind one object, one yard of interconnected system and method |
| CN109466177A (en) * | 2018-10-26 | 2019-03-15 | 卜俊飞 | A kind of draw-bar box type spray head in spray-painting device suitable for smooth flat |
| CN111038113A (en) * | 2018-11-09 | 2020-04-21 | 珠海奔彩打印科技有限公司 | Hand-held printer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111038113A (en) * | 2018-11-09 | 2020-04-21 | 珠海奔彩打印科技有限公司 | Hand-held printer |
| CN111038113B (en) * | 2018-11-09 | 2021-05-28 | 珠海奔彩打印科技有限公司 | Hand-held printer |
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Application publication date: 20130213 |