CN100549247C - Minitype continuous electrostatic spinning molding equipment - Google Patents
Minitype continuous electrostatic spinning molding equipment Download PDFInfo
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- CN100549247C CN100549247C CNB2007100288432A CN200710028843A CN100549247C CN 100549247 C CN100549247 C CN 100549247C CN B2007100288432 A CNB2007100288432 A CN B2007100288432A CN 200710028843 A CN200710028843 A CN 200710028843A CN 100549247 C CN100549247 C CN 100549247C
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- plunger displacement
- displacement pump
- spinneret
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Abstract
The invention discloses a kind of minitype continuous electrostatic spinning molding equipment, the spinneret, the gathering-device that comprise continuous liquid supply device, electrostatic generator and be connected to two outputs of this electrostatic generator, wherein plunger displacement pump is connected with fluidsupply container, spinneret by connecting line simultaneously, reciprocating mechanism is connected with plunger displacement pump and drives plunger reciprocating motion in cylinder body, described plunger displacement pump and connecting line thereof are two, and the connecting line that these two plunger displacement pumps pass through separately respectively is connected with described fluidsupply container, spinneret; The plunger of these two plunger displacement pumps all is connected with described reciprocating mechanism, and when being driven one of them plunger displacement pump and done the inspiration campaign by reciprocating mechanism, another plunger displacement pump is done and extruded motion.The present invention can realize continuous sample preparation continuously to the spinneret feed flow in terms of existing technologies.
Description
Technical field
Patent of the present invention belongs to equipment preparation and forming materials field, comprises fibrous material, is weaved and/or the equipment of nonwoven material preparation by fibrous, is specifically related to a kind of miniature shaped device that can realize continuous electrostatic spinning.
Background technology
Micron, nanofiber show one's talent it with the peculiar property and the advantage of its small-size effect in numerous fibrous materials; this fibrid has that specific area is big, mechanical characteristic is unique, makes it have significant application advantage at aspects such as medical science, environmental protection, using energy source, industrial building and military and national defense.
Realization of industrialization micrometer/nanometer fiber preparation method comprises composite spinning method, meltblown, flash method and the electrostatic spinning technique that occurred in recent years.Wherein preparing the most noticeable in the method for nanofiber is to utilize the high-voltage electrostatic field, electrostatic spinning process, and it can pass through the preparation that control of process parameters such as voltage, original liquid concentration, receiving range, flow realize nanofibers; On the other hand, it has broken through the boundary of conventional melt spun, solwution method spinning moulding, can realize the fibre spinning forming process and the preparation of fiber size of multiple polymers material from 10 nanometers to 1000 nanometer wide region micrometer/nanometer fibers, therefore, electrostatic spinning moulding control and industrialization get more and more people's extensive concerning.
The technology that realizes the electrostatic spinning suitability for industrialized production at present only limits to external large-scale enterprise of several families.The industrialized subject matter of electrostatic spinning is raising, the fiber web strength problem of spinning process output and solvent recovery and the environmental issue that adopts the solvent spinning moulding.At present, the patent of rotary nozzle, many shower nozzles is that the raising of electrostatic spinning moulding output has proposed reference method, also is the nozzle type that present electrostatic spinning industrialization is generally adopted.But, for adopting the nozzle moulding, spinning solution or melt without interruption, also relevant patent proposes.Particularly prepare needed continuously in sample and stable moulding control for small sample, domestic also rarely have report at present.
Summary of the invention
The technical problem of patent of the present invention is to provide a kind of miniature former that can realize continuous electrostatic spinning.
Patent of the present invention is to be achieved by the following technical programs:
A kind of minitype continuous electrostatic spinning molding equipment, the spinneret, the gathering-device that comprise continuous liquid supply device, electrostatic generator and be connected to two outputs of this electrostatic generator, wherein plunger displacement pump is connected with fluidsupply container, spinneret by connecting line simultaneously, reciprocating mechanism is connected with plunger displacement pump and drives plunger reciprocating motion in cylinder body, described plunger displacement pump and connecting line thereof are two, and the connecting line that these two plunger displacement pumps pass through separately respectively is connected with described fluidsupply container, spinneret; The plunger of these two plunger displacement pumps all is connected with described reciprocating mechanism, and when being driven one of them plunger displacement pump and done the inspiration campaign by reciprocating mechanism, another plunger displacement pump is done and extruded motion.
In the patent of the present invention, owing to be provided with two plunger displacement pumps, two plunger displacement pumps all are connected with reciprocating mechanism, at each constantly, at least one plunger displacement pump is all arranged to the spinneret feed flow, make the feed flow of spinneret continuous, patent of the present invention can realize continuous sample introduction, thereby can realize the preparation of continuous micron, nanofiber mats or long filament.These two reciprocating plunger pumps can be connected with fluidsupply container, spinneret by connecting line separately or simultaneously, independent when plunger displacement pump with fluidsupply container, when spinneret is connected, can prepare the compound micrometer/nanometer fibrofelt of sandwich by the kind of adjusting the spinning solution in the fluidsupply container.
But the described gathering-device of patent of the present invention can be the conductive body of the three-dimensional of template, cast, wheel type or other Any shape, and the template gathering-device can provide continuous or periodic two-dimensional nano fibrofelt sample or goods; The runner gathering-device can provide continuous or periodic 1-dimention nano fiber sample or goods; But but the conductive body of the three-dimensional of this Any shape comprises and not exclusively comprises skin surface, skin surface complex, bone, bone replica, blood vessel, blood vessel replica etc. that all gathering-devices are all realized the control handoff procedure by the flow measurement meter that is connected to the electrostatic spinning liquid feed device.
The described spinneret of patent of the present invention can be single or two and above spinning head, perhaps can adopt the slit spinneret or adopt the light surface roller or adopt a kind of in the wire side cylinder or be used, thereby satisfy the requirement of different moulding samples.
The further improvement of patent of the present invention is:
Described reciprocating mechanism comprises moving member, drive the driving mechanism of moving member and the stroke of this moving member is carried out the travel switch of sensing, and the trip switch is connected with control circuit; Two described plunger displacement pumps oppositely are provided with and all are connected with moving member.This structure is a kind of tandem design, when moving member moves to a direction, drive first plunger displacement pump to the spinneret feed flow, second plunger displacement pump stops to the spinneret feed flow, during the moving member counter motion, drive second plunger displacement pump to the spinneret feed flow, first plunger displacement pump stops to the spinneret feed flow.
Described reciprocating mechanism comprises the guide groove that is hinged on the pedestal, the sliding part of being located at the pin joint both sides and can sliding in guide groove, drive the driving mechanism of this guide groove and the travel control switch that the stroke of this guide groove is monitored; The trip gauge tap is connected with control circuit; The plunger of described two plunger displacement pumps is connected on the sliding part of pin joint both sides.Under the driving effect of driving mechanism, guide groove rotates with respect to pin joint, makes two sliding part counter motions respectively, and even one of them plunger displacement pump stops when the spinneret feed flow, and another plunger displacement pump can make the feed flow of spinneret continuous to the spinneret feed flow.
Described driving mechanism is a mechanical transmission mechanism, can be cam drive, and rack and pinion drive mechanism, cylinder transmission mechanism, screw drive mechanism comprise a kind of in the rolling ball screw driving mechanism or two kinds.
Preferred driving mechanism be slide block and with the screw rod of this slide block threaded engagement, also can be provided with thread groove at described slide block with the screw rod place of matching, be provided with ball in this thread groove.Comprise cylinder body (29) and piston with matching (30) with preferred driving mechanism in addition.Adopt ball screw driving mechanism and cylinder driving mechanism, can the more accurate control of carrying out micro-charging.Prepare screw rod boosting plunger type propulsion plant by frequency conversion, speed Control, what reach 0.3-20ml/h accurately extrudes control, and its error range is controlled within 1%; Adopt the design of single-chip microcomputer formula, carry out the automation control of whole spinning moulding and auto injection, thereby reach trace, stable moulding requirement.
Described connecting line comprises nozzle segment pipeline, container section pipeline, the pumping hole section pipeline that is connected with described spinneret, fluidsupply container, plunger displacement pump respectively and connects mutually, on the container section pipeline, be provided with first check valve, on the nozzle segment pipeline, be provided with second check valve towards the spinneret direction towards described plunger displacement pump direction.When the plunger displacement pump imbibition, stoste enters plunger displacement pump through fluidsupply container, container section pipeline, pumping hole section pipeline, and when the plunger displacement pump discharge opeing, stoste enters spinneret through plunger displacement pump, pumping hole section pipeline, nozzle segment pipeline, so repeatedly, this structure is applicable to that plunger displacement pump has only the situation of a pumping hole.When if plunger displacement pump has import, two pumping holes of outlet, described connecting line comprises leading portion pipeline, back segment pipeline, be connected by the leading portion pipeline between described plunger displacement pump import and the described fluidsupply container and communicate, be connected by the back segment pipeline between described plunger displacement pump outlet and the described spinneret and communicate.At this moment,, also need to be provided with towards the check valve of described plunger displacement pump, also to be provided with check valve, be beneficial to the flow direction of stoste is controlled towards described spinneret direction at the back segment pipeline at the leading portion pipeline if the import of plunger displacement pump, outlet do not have check valve.
Described fluidsupply container comprises liquid reserve tank and the reserve tank that communicates with liquid reserve tank, is provided with stirring vane in liquid reserve tank.After liquid gas in the liquid reserve tank was used to a certain degree, spinning solution just flowed out from reserve tank, and simultaneously, the stirring vane in the liquid reserve tank plays stirring action to stoste, makes spinning solution more even.
This liquid feed device also includes the stroke adjustment switch that the advance distance stroke of the plunger of described two plunger displacement pumps is regulated.After the stroke adjustment of stroke adjustment switch to plunger displacement pump, each plunger displacement pump changes to the spinneret liquid supply rate, to adapt to different needs.
Described stroke adjustment switch comprises that adjustment sheet reaches the spring that compresses that contacts with this adjustment sheet.
Description of drawings
Fig. 1 is the application schematic diagram of embodiment one;
Fig. 2 is among Fig. 1, the structure chart of driving mechanism and plunger displacement pump;
Fig. 3 is among Fig. 2, the johning knot composition of screw rod, slide block and ball;
Fig. 4 is the structure chart of fluidsupply container and connecting line;
Fig. 5 is among the embodiment two, the johning knot composition of driving mechanism and plunger displacement pump;
Fig. 6 is the application schematic diagram of embodiment three;
Fig. 7 is among the embodiment four, the johning knot composition of driving mechanism and plunger displacement pump;
Fig. 8 is among the embodiment five, the johning knot composition of driving mechanism and plunger displacement pump;
Description of reference numerals:
1, plunger displacement pump, 2, fluidsupply container, 3, spinneret, 4, screw rod, 5, moving member, 6, travel switch, 7, control circuit, 8, guide groove, 9, sliding part, 10, travel control switch, 12, gearbox, 13, the nozzle segment pipeline, 14, the container section pipeline, 15, pumping hole section pipeline, 16, first check valve, 17, second check valve, 18, liquid reserve tank, 19, reserve tank, 20, stirring vane, 21, adjustment sheet, 22, compress spring, 23, motor, 24 balls, 25, electrostatic generator, 26, gathering-device, 27, slide block, 28, thread groove, 29, piston, 30, piston, 31, reversal valve, 32, the pump housing, 33, gear, 34, tooth bar.
The specific embodiment
Embodiment one:
See also Fig. 1 to Fig. 4, a kind of minitype continuous electrostatic spinning molding equipment, spinneret 3, gathering-device 26 that this device comprises continuous liquid supply device, electrostatic generator 25 and is connected 25 two outputs of this electrostatic generator, the plunger displacement pump 1 of this continuous liquid supply device is connected with fluidsupply container 2, spinneret 3 by connecting line simultaneously, reciprocating mechanism is connected with plunger displacement pump 1 and drives plunger reciprocating motion in cylinder body, plunger displacement pump 1 and connecting line thereof are two, and the connecting line that these two plunger displacement pumps 1 pass through separately respectively is connected with fluidsupply container 2, spinneret 3; The plunger of these two plunger displacement pumps 1 all is connected with reciprocating mechanism, and when being driven one of them plunger displacement pump 1 and done the inspiration campaign by reciprocating mechanism, another plunger displacement pump 1 is extruded motion.
Wherein, fluidsupply container 2 comprises liquid reserve tank 18 and the reserve tank 19 that communicates with liquid reserve tank 18, is provided with stirring vane 20 in liquid reserve tank 18; Connecting line comprises nozzle segment pipeline 13, container section pipeline 14, the pumping hole section pipeline 15 that is connected with spinneret 3, fluidsupply container 2, plunger displacement pump 1 respectively and connects mutually, on container section pipeline 14, be provided with first check valve 16, on nozzle segment pipeline 13, be provided with second check valve 17 towards spinneret 3 directions towards plunger displacement pump 1 direction; Reciprocating mechanism comprise moving member 5, drive the driving mechanism of this moving member 5 (driving mechanism be slide block 27 and with the screw rod 4 of these slide block 27 threaded engagement, be provided with thread groove 28 at slide block 27 with screw rod 4 places of matching, be provided with ball 24 in this thread groove 28), and the stroke of this moving member 5 carried out the travel switch 6 of sensing, the trip switch 6 is connected with control circuit 7; Two plunger displacement pumps 1 oppositely are provided with and all are connected with moving member 5; Two plunger displacement pumps 1 oppositely are provided with and all are connected with moving member 5; The spring 22 that compresses that is provided with adjustment sheet 21 and contacts with this adjustment sheet 21 between the plunger of two plunger displacement pumps 1 constitutes the stroke adjustment switch, and an electrode of electrostatic generator 25 is connected with spinneret 3, and another electrode is connected with gathering-device 26.
In the present embodiment, motor 23 drives ball screw 4 rotations by gearbox 12, the slide block 27 that screw rod 4 drives on it moves along screw rod 4, this slide block 27 drives the moving member 5 that is attached thereto and moves along screw rod 4, and the plunger motion of reverse two plunger displacement pumps 1 that are provided with of drive, during one of them plunger displacement pump 1 inspiration stoste, another plunger displacement pump 1 is just discharged stoste, can be continuously to spinneret 3 feed flows, in each stroke, moving member 5 reaches stroke afterwards by travel switch 6 sensings, travel switch 6 transfers to control circuit 7 with sensing signal, motor 23 counter-rotatings, and the plunger that drives plunger displacement pump 1 is done counter motion, so repeatedly, can adjust the stroke of plunger in the plunger displacement pump 1 by adjustment stroke switch 6.
Embodiment two:
As shown in Figure 5, driving mechanism comprises cylinder body 29 and piston with matching 30.During work, the pump housing 32 output highly pressurised liquid/gases are to reversal valve 31, and highly pressurised liquid/gas is pressed in the cavity of piston 30 1 sides, piston 30 motions, drive plunger displacement pump 1 motion, after reversal valve 31 commutations, the piston reverses direction motion, drive plunger displacement pump 1 counter motion, thereby realize the reciprocating motion of plunger displacement pump 1.
Embodiment three:
As shown in Figure 6, the difference of present embodiment and embodiment one is: the described minitype continuous electrostatic spinning molding equipment of present embodiment has two fluidsupply containers 2, two spinnerets 3; Two plunger displacement pumps 1 connecting line by separately respectively are connected with separately fluidsupply container 2, spinneret 3 simultaneously.In the present embodiment, the spinning solution difference in each fluidsupply container 2, each spinneret 3 can spray different stoste respectively like this.
Embodiment four:
As shown in Figure 7, in the present embodiment, reciprocating mechanism comprises the guide groove 8 that is hinged on the pedestal, be located at pin joint both sides and the sliding part 9 that can slide in guide groove 8, the driving mechanism that drives this guide groove 8 and travel control switch 10 that the stroke of guide groove 8 is monitored; The trip gauge tap 10 is connected with control circuit 7; The plunger of described two plunger displacement pumps 1 is connected on the sliding part 9 of pin joint both sides, and screw rod 4 rotating band movable sliders 27 slide, and slide block 27 drives sliding part 9 and moves.
Embodiment five:
As shown in Figure 8, the difference of present embodiment and embodiment four is: guide groove 8 is fixed on the gear 33, and two sliding parts 9 in the guide groove 8 are linked together by spring 22, and sliding part is connected with the plunger of two plunger displacement pumps 1 respectively.When work, drive gear 33 reciprocating motions that are mated by tooth bar 34, the guide groove that is fixed on the gear 33 also moves back and forth thereupon, thereby two sliding parts 9 drive two plunger displacement pump 1 piston reverses direction motions, i.e. one of them plunger displacement pump 1 imbibition, another plunger displacement pump 1 discharge opeing respectively.
Claims (10)
1, a kind of minitype continuous electrostatic spinning molding equipment, this device comprises continuous liquid supply device, electrostatic generator (25) and the spinneret (3) that is connected to (25) two outputs of this electrostatic generator, gathering-device (26), it is characterized in that: the plunger displacement pump of this continuous liquid supply device (1) is by connecting line while and fluidsupply container (2), spinneret (3) connects, reciprocating mechanism is connected with plunger displacement pump (1) and drives plunger reciprocating motion in cylinder body, described plunger displacement pump (1) and connecting line thereof are two, and these two plunger displacement pumps (1) pass through connecting line and described fluidsupply container (2) separately respectively, spinneret (3) connects; The plunger of these two plunger displacement pumps (1) all is connected with described reciprocating mechanism, and when being driven one of them plunger displacement pump (1) and done the inspiration campaign by reciprocating mechanism, another plunger displacement pump (1) is extruded motion.
2, minitype continuous electrostatic spinning molding equipment according to claim 1, it is characterized in that: described reciprocating mechanism comprises moving member (5), drives the driving mechanism of this moving member (5), and the stroke of this moving member (5) carried out the travel switch (6) of sensing, the trip switch (6) is connected with control circuit (7); Two described plunger displacement pumps (1) oppositely are provided with and all are connected with moving member (5).
3, minitype continuous electrostatic spinning molding equipment according to claim 1 is characterized in that: described reciprocating mechanism comprises the guide groove (8) that is hinged on the pedestal, be located at pin joint both sides and the sliding part (9) that can slide in guide groove (8), the driving mechanism that drives this guide groove (8) and travel control switch (10) that the stroke of guide groove (8) is monitored; The trip gauge tap (10) is connected with control circuit (7); The plunger of described two plunger displacement pumps (1) is connected on the sliding part (9) of pin joint both sides.
4, as minitype continuous electrostatic spinning molding equipment as described in claim 2 or 3, it is characterized in that: described driving mechanism be slide block (27) and with the screw rod (4) of this slide block (27) threaded engagement.
5, as minitype continuous electrostatic spinning molding equipment as described in the claim 4, it is characterized in that: be provided with thread groove (28) at described slide block (27) with screw rod (4) place of matching, be provided with ball (24) in this thread groove (28).
6, as minitype continuous electrostatic spinning molding equipment as described in claim 2 or 3, it is characterized in that: described driving mechanism comprises cylinder body (29) and piston with matching (30).
7, as minitype continuous electrostatic spinning molding equipment as described in claim 1 or 2 or 3, it is characterized in that: described spinneret (3) is used in slit spinneret, light surface roller or the wire side cylinder one or several.
8, as minitype continuous electrostatic spinning molding equipment as described in claim 1 or 2 or 3, it is characterized in that: described gathering-device (26) is template, cast or wheel type.
9, as minitype continuous electrostatic spinning molding equipment as described in claim 1 or 2 or 3, it is characterized in that: described fluidsupply container (2) is two, is connected with each plunger displacement pump (1) respectively.
10, as minitype continuous electrostatic spinning molding equipment as described in claim 1 or 2 or 3, it is characterized in that: each described plunger displacement pump (1) respectively connects a described spinneret (3) by its connecting line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100288432A CN100549247C (en) | 2007-06-26 | 2007-06-26 | Minitype continuous electrostatic spinning molding equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100288432A CN100549247C (en) | 2007-06-26 | 2007-06-26 | Minitype continuous electrostatic spinning molding equipment |
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| Publication Number | Publication Date |
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| CN101092757A CN101092757A (en) | 2007-12-26 |
| CN100549247C true CN100549247C (en) | 2009-10-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100288432A Active CN100549247C (en) | 2007-06-26 | 2007-06-26 | Minitype continuous electrostatic spinning molding equipment |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104157814B (en) * | 2014-08-08 | 2016-09-07 | 四川理工学院 | A kind of electrostatic spinning prepares the method for PVDF lithium ion battery separator |
| CN106435772A (en) * | 2016-10-21 | 2017-02-22 | 上海工程技术大学 | Method and device for preparing nano fiber by using electrostatic method |
| CN107313118A (en) * | 2017-07-25 | 2017-11-03 | 苏州大学 | It is constant to continue liquid feed device |
| CN110258026B (en) * | 2019-07-22 | 2024-03-29 | 河南曼博睿新材料科技有限公司 | Continuous electrostatic spinning film making machine capable of working for long time |
| CN112695388B (en) * | 2020-12-22 | 2021-12-21 | 吉林大学 | Electrostatic spinning device for continuously supplying liquid and discharging liquid |
| CN114808162B (en) * | 2022-04-28 | 2023-05-26 | 上海迅江科技有限公司 | Flash spinning/electrostatic spinning composite superfine nanofiber material and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4323525A (en) * | 1978-04-19 | 1982-04-06 | Imperial Chemical Industries Limited | Electrostatic spinning of tubular products |
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2007
- 2007-06-26 CN CNB2007100288432A patent/CN100549247C/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4323525A (en) * | 1978-04-19 | 1982-04-06 | Imperial Chemical Industries Limited | Electrostatic spinning of tubular products |
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| CN101092757A (en) | 2007-12-26 |
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