CN2688730Y

CN2688730Y - Electrostatic spinning apparatus with vibration generator

Info

Publication number: CN2688730Y
Application number: CN 200420020596
Authority: CN
Inventors: 万玉芹; 张娟; 何吉欢; 俞建勇
Original assignee: Donghua University
Current assignee: Donghua University
Priority date: 2004-03-02
Filing date: 2004-03-02
Publication date: 2005-03-30
Anticipated expiration: 2014-03-02

Abstract

The utility model belongs to the technical field of textile, which discloses an electrostatic spinning device with a vibration generator. The utility model comprises a high-voltage power cord, a high-voltage power supply device, a grounding power cord, a receiving plate and cap screws. The utility model is characterized in that the utility model also comprises a charging basket, a material feeding pipe, a ceram conduit, a unidirectional valve, a flange, a flange ceram inner liner, a spinning mould head, a ceram inner liner of the spinning mould head, a flange cover plate, a spring, a ceram cover plate, a cover plate of the spinning mould head and a vibration generator. The utility model can be used for spinning nanometer fibre which is thinner than the existing electrostatic spinning fibre, and electrostatic spinning of polymer melt or solution which has relatively large viscosity or is nearly insulating is realized. The utility model has the advantages of simple structure, convenient operation, short process flow and excellent product manufacturing function.

Description

A kind of electrospinning device that has vibration generating arrangement

Technical field:

The utility model belongs to field of textiles, and it relates to a kind of electrospinning device that has vibration generating arrangement.

Background technology:

As shown in Figure 1, present widely used electrospinning device is made up of high voltage power supply device 13, high-voltage power-line 12, syringe pump 25, capillary 26, electric guide plate 27 and dash receiver 15, ground power line 14.Its operation principle is: syringe pump 25 arrives capillary 26 with polymer melt or injection of solution, high voltage power supply device 13 is added in high-tension electricity on the electric guide plate 27 by high-voltage power-line 12, dash receiver 15 is by ground power line 14 ground connection, form an electric field between electricity guide plate 27 and the earth plate 15, with 1～50 kilovolt high-pressure electrostatic on polymer melt or the solution band, charged polymer liquid drops in that the mouth of pipe at capillary 26 forms taylor cone (Taylor cone) under the effect of electric field force.When electric field force was enough big, the polymer drop can overcome surface tension and form the injection thread.Thread is solvent evaporation or curing in course of injection, finally drops on the dash receiver 15, forms fibre.The electrospinning device that can be applicable to the maturation of producing does not at present also occur, and current experiments reaches capacity with the spinning fineness of electrospinning device, and the thinner fiber of fineness is difficult to reentry.When polymer melt that the while is big in spinning viscosity or conductive capability is almost nil or solution, also exist to be difficult to overcome the problem that thread is sprayed in surface tension formation.

Summary of the invention:

In order to spin the nanofiber thinner than existing electrostatic spinning fiber, but also can realize existing static is spun the viscosity that can not spin big or the polymer melt of intimate insulation or the electrostatic spinning of solution, the utility model provides a kind of electrospinning device that has vibration generating arrangement.

The technical scheme of the utility model technical solution problem is as follows:

It comprises high-voltage power-line 12 a kind of electrospinning device that has a vibration generating arrangement, high voltage power supply device 13, ground power line 14, dash receiver 15 and soket

head cap screw

3,8,20,21,23, it is characterized in that it also comprises the charging basket 1 that links to each other with feed line 4, the feed line 4 that links to each other with pump 6 with charging basket 1, the pump 6 that links to each other with ceramic conduit 7 with feed line 4, with pump 6, check valve 5 links to each other, be fixed on the flange 9 by soket head cap screw 8 again, and pass flange 9, flange ceramic-lined 10, the ceramic conduit 7 of spray silk die head 11, be contained in the check valve 5 on the ceramic conduit 7, with ceramic conduit 7, soket head cap screw 8 links to each other, and be lined with the flange 9 of flange ceramic-lined 10, passed by ceramic conduit 7, lining is in flange 9 inside, and the flange ceramic-lined 10 that links to each other with spray silk die head 11, passed by ceramic conduit 7, the outside links to each other with flange ceramic-lined 10, inner and upper is lined with the spray silk die head 11 of spray silk die head ceramic-lined 22, lining is at the spray silk die head ceramic-lined 22 of spray silk die head 11 inner and upper, be connected flange plate 2 on the flange 9 by soket head cap screw 3 and soket head cap screw 21, ceramic cover plate 18 is pressed on spring 17 in the flange plate 2, be pressed in flange 9 inside by spring 17, link to each other with spring 17, cover the ceramic cover plate 18 on the spray silk die head cover plate 19, be connected the spray silk die head cover plate 19 that sprays on the silk die head 11 by soket head cap screw 20, and by the vibration machine 161 that links to each other with amplification bar 162, the top links to each other with vibration machine 161, below and soket head cap screw 23, the amplification bar 162 that pin 164 links to each other and links to each other with piston 163 again, the piston 163 that links to each other with amplification bar 162 by soket head cap screw 23, pass the hole on soket head cap screw 23 double-screw bolts and the pin 164 in the hole on the amplification bar 162, outer rim links to each other with flange ceramic-lined 10 and is embedded in piston ring 165 common vibration generating arrangements of forming 16 on the piston 164; Have 2～6 piston rings 165 on the described piston 163.

Compared with prior art the utility model has the advantages that:

The utility model can spin the nanofiber thinner than existing electrostatic spinning fiber, and has realized big viscosity and the polymer melt of intimate insulation or the electrostatic spinning of solution; Simple in structure, easy to operate, technological process is short, product function is excellent.

Description of drawings:

Fig. 1 is the schematic diagram of existing electrospinning device

Among Fig. 1,12-high-voltage power-line, 13-high voltage power supply device, 14-ground power line, 15-dash receiver, 24-conduit, 25-syringe pump, 26-capillary, 27-electricity guide plate.

Fig. 2 is a kind of electrospinning device schematic diagram that has vibration generating arrangement of the utility model

Among Fig. 2,1-charging basket, 2-flange plate, 3,8,20,21, the 23-soket head cap screw, 4-feed line, 5-check valve, the 6-pump, 7-ceramic conduit, 9-flange, the 10-flange is ceramic-lined, 11-spray silk die head, 12-high-voltage power-line, the 13-high voltage power supply device, 14-ground power line, 15-dash receiver, the 16-vibration generating arrangement, the 161-vibration machine, 162-amplification bar, 163-piston, the 164-pin, the 165-piston ring, 17-spring, 18-ceramic cover plate, 19-spray silk die head cover plate, 22-spray silk die head is ceramic-lined.

The specific embodiment

As shown in Figure 2, charging basket 1 links to each other with pump 6 by feed line 4, polymeric liquid is pumped in the spray silk die head 11 by ceramic conduit 7 by pump 6, general 0.5～the 500KW that adopts of the power of pump 6, the power of regulating pump 6 can the controlling liquid flow velocity, the flow direction of check valve 5 controlling liquid is housed on the ceramic conduit 7, prevent that polymer from flowing backwards, ceramic conduit 7 is by flange 9, flange ceramic-lined 10, spray silk die head 11 imports liquid in the spray silk die head 11, ceramic conduit 7 is with flange 9, flange ceramic-lined 10, the duct of spray silk die head 11 3 parts is linked together, prevent fluid seepage, soket head cap screw 8 is fixed on ceramic conduit 7 on the flange 9, flange 9 will spray a silk die head 11 and be fixed on the external equipment support and (do not draw among the figure), flange 9 inside are lined with ceramic-lined 10, soket head cap screw 3 is fixed on flange plate 2 on the flange 9 with soket head cap screw 21, spring 17 is pressed on ceramic cover plate 18 in the flange 9, soket head cap screw 20 will spray silk die head cover plate 19 and be fixed together with spray silk die head 11, the diameter of spray silk die head cover plate 19 is slightly less than ceramic cover plate 18 diameters, makes amplification bar 162 charged to prevent that spray silk die head cover plate 19 from contacting with amplification bar 162.By vibration machine 161, amplification bar 162, piston 163, pin 164, the piston ring 165 common vibration generating arrangements of forming 16, amplification bar 162 head ends of its vibration machine 161 are equipped with piston 163, the part of amplification bar 162, piston 163 probe in the chamber of spray silk die head 11, and the power of vibration machine 161 is general to adopt 1～10 ⁸Hz, by regulating the frequency of vibration machine 161, amplitude that can control piston 163, the amplification bar 162 of vibration machine 161 links to each other with piston 163 by soket head cap screw 23, double-screw bolt and the hole on the amplification bar 162 that pin 164 passes soket head cap screw 23 cause that to prevent soket head cap screw 23 from becoming flexible slippage takes place for amplification bar 162 and piston 163 in vibration processes, piston ring 165 on the piston 163 plays packed-piston 163 and the effect of spraying silk die head ceramic-lined 22, the high-tension electricity that high-voltage power-line 12 produces high voltage power supply device 13 is added on the spray silk die head 11, the voltage of high voltage power supply device 13 is adjustable general employing 1～1000KV, and dash receiver 15 is by ground power line 14 ground connection.

Claims

An electrospinning device that has a vibration generating arrangement it comprise high-voltage power-line (12), high voltage power supply device (13), ground power line (14), dash receiver (15) and soket head cap screw (3,8,20,21,23), it is characterized in that it also comprises the charging basket (1) that links to each other with feed line (4), the feed line (4) that links to each other with pump (6) with charging basket (1), the pump (6) that links to each other with ceramic conduit (7) with feed line (4), with pump (6), check valve (5) links to each other, be fixed on the flange (9) by soket head cap screw (8) again, and pass flange (9), flange ceramic-lined (10), the ceramic conduit (7) of spray silk die head (11), be contained in the check valve (5) on the ceramic conduit (7), with ceramic conduit (7), soket head cap screw (8) links to each other, and be lined with the flange (9) of flange ceramic-lined (10), passed by ceramic conduit (7), lining is in flange (9) inside, and the flange ceramic-lined (10) that links to each other with spray silk die head (11), passed by ceramic conduit (7), outside ceramic-lined with flange (10) link to each other, inner and upper is lined with the spray silk die head (11) of spray silk die head ceramic-lined (22), lining is at the spray silk die head ceramic-lined (22) of spray silk die head (11) inner and upper, be connected flange plate (2) on the flange (9) by soket head cap screw (3) and soket head cap screw (21), ceramic cover plate (18) is pressed on the interior spring (17) of flange plate (2), be pressed in flange (9) inside by spring (17), link to each other with spring (17), cover the ceramic cover plate (18) on the spray silk die head cover plate (19), be connected the spray silk die head cover plate (19) that sprays on the silk die head (11) by soket head cap screw (20), and by the vibration machine (161) that links to each other with amplification bar (162), the top links to each other with vibration machine (161), below and soket head cap screw (23), the amplification bar (162) that pin (164) links to each other and links to each other with piston (163) again, the piston (163) that links to each other with amplification bar (162) by soket head cap screw (23), pass the hole on soket head cap screw (23) double-screw bolt and the pin (164) in the hole on the amplification bar (162), outer rim ceramic-lined with flange (10) links to each other and is embedded in the common vibration generating arrangement of forming (16) of piston ring (165) on the piston (164).
2. the electrospinning device that has vibration generating arrangement according to claim 1 is characterized in that having 2～6 piston rings (165) on the described piston (163).