CN210287608U - High-voltage electrostatic melt spinning device - Google Patents

Abstract

The utility model discloses a high-voltage electrostatic melt spinning device, which comprises an insulating heat conductor, a heating element and a melt injection mechanism which are embedded in the insulating heat conductor at intervals, and a high-voltage electrostatic connecting piece which is electrically connected with the melt injection mechanism; the melt injection mechanism comprises a charging barrel, a spray head connected with the discharging end of the charging barrel and used for melt spinning forming, and a conductive sleeve embedded in the insulating heat conductor and matched with the spray head, wherein the conductive sleeve is electrically connected with the high-voltage electrostatic connecting piece. By adopting the high-voltage electrostatic melt spinning device with the structural design, the insulating heat conductor is heated through the heating body, and then heat is transferred to the charging barrel embedded in the insulating heat conductor, so that the breakdown of components of the spinning device caused by the mutual interference of two voltages applied by the spray head and the heating body is effectively avoided.

Description

High-voltage electrostatic melt spinning device

Technical Field

The utility model relates to a nanofiber preparation technical field especially relates to a high-voltage electrostatic melt spinning device.

Background

Under the prior art, when realizing high-voltage electrostatic melt spinning, the terminal of the most high-voltage electricity is connected with the nozzle end electricity, later twine the heating wire in the feed cylinder again, heat the feed cylinder, because the voltage of the high-voltage electricity of nozzle end connection is about 5 ~ 50KV usually, and the voltage that the heating wire is connected is 220V usually, set up with this mode, it is very close to the high-voltage electricity of nozzle end to make the heating wire on the feed cylinder, cause two kinds of voltage mutual interferences very easily, and then make the components and parts on the spinning equipment puncture very easily.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high voltage static melt spinning device, this high voltage static melt spinning device can effectively avoid causing spinning device's components and parts to puncture because of mutual interference between both applyed two kinds of voltages of shower nozzle and heat-generating body.

To achieve the purpose, the utility model adopts the following technical proposal:

a high-voltage electrostatic melt spinning device comprises an insulating heat conductor, heating bodies and a melt injection mechanism which are embedded in the insulating heat conductor at intervals, and a high-voltage electrostatic connecting piece which is electrically connected with the melt injection mechanism; the melt injection mechanism comprises a charging barrel, a spray head connected with the discharging end of the charging barrel and used for melt spinning forming, and a conductive sleeve embedded in the insulating heat conductor and matched with the spray head, wherein the conductive sleeve is electrically connected with the high-voltage electrostatic connecting piece.

The lower port of the conductive sleeve is provided with a plug which facilitates the replacement of the spray head, the plug and the conductive sleeve are provided with a containing cavity in a penetrating manner, and the spray head is arranged in the containing cavity in a penetrating manner and closely attached to the inner wall of the cavity of the containing cavity.

The conductive sleeve and the plug are integrally processed by brass, and the plug is in threaded connection with the conductive sleeve.

The high-voltage electrostatic connecting piece penetrates through the side wall of the insulating heat conductor and is fastened with the conductive sleeve.

The nozzle comprises a first nozzle part and a second nozzle part, wherein the first nozzle part is communicated with the charging barrel, the second nozzle part is connected with the first nozzle part in a replaceable mode, and a material nozzle of the second nozzle part is exposed out of the plug.

The lower end face of the plug, the lower end face of the conductive sleeve and the lower bottom face of the insulating heat conductor are arranged in a coplanar mode.

The insulating heat conductor is set to be a marble stone block or a ceramic block, and a fixing frame convenient to fasten with an external component is fastened on the insulating heat conductor.

The feeding end of the charging barrel is provided with a sealing cover, and the sealing cover is extended with an air faucet used for being connected with an external supercharging device.

Wherein the insulating heat conductor on one side of the sealing cover is provided with a pressing plate assembly for fastening the sealing cover and the charging barrel.

The temperature sensing probe, the heating body and the high-voltage electrostatic connecting piece are all electrically connected with an external electric control device.

The utility model has the advantages that: the utility model provides a high-voltage electrostatic melt spinning device, which comprises an insulating heat conductor, a heating element and a melt injection mechanism which are embedded in the insulating heat conductor at intervals, and a high-voltage electrostatic connecting piece which is electrically connected with the melt injection mechanism; the melt injection mechanism comprises a charging barrel, a spray head connected with the discharging end of the charging barrel and used for melt spinning forming, and a conductive sleeve embedded in the insulating heat conductor and matched with the spray head, wherein the conductive sleeve is electrically connected with the high-voltage electrostatic connecting piece.

By adopting the high-voltage electrostatic melt spinning device with the structural design, the insulating heat conductor is heated through the heating body, and then heat is transferred to the charging barrel embedded in the insulating heat conductor, so that the breakdown of components of the spinning device caused by the mutual interference of two voltages applied by the spray head and the heating body is effectively avoided.

Drawings

Fig. 1 is an axonometric view of the high-voltage electrostatic melt spinning device of the utility model.

Fig. 2 is a front view of fig. 1.

Fig. 3 is a sectional view of section a-a in fig. 2.

Fig. 4 is an exploded view of the melt injection mechanism of fig. 1.

In the figure: 1. the device comprises an insulating heat conductor, a heating body, a melt injection mechanism, a charging barrel, a nozzle, a first nozzle part 321, a first nozzle part 322, a second nozzle part 322, a conductive sleeve 33, a plug 34, a high-voltage electrostatic connecting piece 4, a temperature sensing probe 5, a sealing cover 7, an air nozzle 71, a pressing plate assembly 8, a pressing plate 81, and a fixing frame 9.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

Referring to fig. 1 to 4, the present embodiment provides a high voltage electrostatic melt spinning apparatus, which includes an insulating heat conductor 1, a heating element 2 and a melt injection mechanism 3 embedded in the insulating heat conductor 1, and a high voltage electrostatic connector 4 electrically connected to the melt injection mechanism 3. Preferably, the insulating heat conductor 1 in the present embodiment is preferably a marble block or a ceramic block, and the marble block is taken as an example for illustration, in order to facilitate the installation of the heating element 2, a long hole is transversely processed on the left side wall of the processed marble block, and the heating element 2 can be inserted into the long hole to heat the marble block; in order to monitor the temperature after the marble is heated, the temperature sensing probe 5 is embedded in the front side wall of the marble, and then a charging barrel accommodating hole is vertically processed at the top of the marble block, and the charging barrel 31 is inserted into the marble block along the charging barrel accommodating hole. Thereby heating the marble stone through the heating body 2, and then transferring the heat to the charging barrel 31 through the marble stone; furthermore, because the melting material in the charging barrel 31 is cooled and solidified, a rod-shaped polymer is very easily formed, so that the charging barrel 31 is difficult to clean, in order to overcome the defect, the charging barrel 31 in the embodiment is preferably an injection tube of a common injector, because the injection tube has low cost, after the melting material in the injection tube is cooled and solidified, the melting material can be pulled out from the charging barrel accommodating hole at any time to be replaced, and then the trouble caused by cleaning the charging barrel 31 is avoided.

Further, the melt injection mechanism 3 in this embodiment includes the above-mentioned charging barrel 31, a nozzle 32 connected to the discharging end of the charging barrel 31 for melt spinning, and a conductive sleeve 33 embedded in the insulating heat conductor 1 and matching with the nozzle 32, wherein the conductive sleeve 33 is electrically connected to the high-voltage electrostatic connector 4. The nozzle 32 in this embodiment can adopt a stainless steel luer connector, which has high dimensional accuracy and uniform shape and is convenient to match with the conductive sleeve 33; the high-voltage electrostatic connector 4 can adopt a banana plug, and is electrically connected with the conductive sleeve 33 by penetrating through the front side wall of the marble stone when being installed; in order to facilitate the replacement of the nozzles 32 of various types of nozzles, the lower port of the conductive sleeve 33 in this embodiment is provided with a plug 34 for facilitating the replacement of the nozzles 32, and the plug 34 is in threaded connection with the conductive sleeve 33. Further end cap 34 and conductive sleeve 33 have still run through and have seted up and accomodate the chamber, for making shower nozzle 32 fully electrified, promote spinning efficiency, shower nozzle 32 in this embodiment wears to locate to accomodate the chamber and closely laminates with the cavity inner wall of accomodating the chamber.

Further, in order to improve the electrical conductivity and the thermal conductivity of the conductive sleeve 33, the conductive sleeve 33 and the plug 34 in this embodiment are integrally formed by brass. The nozzle 32 in this embodiment includes a first nozzle portion 321 connected to the barrel 31 in a penetrating manner, and a second nozzle portion 322 connected to the first nozzle portion 321 in a replaceable manner, wherein a nozzle of the second nozzle portion 322 is exposed from the plug 34; the lower end surface of the plug 34, the lower end surface of the conductive sleeve 33 and the lower bottom surface of the insulated heat conductor 1 are arranged in a coplanar manner.

In order to facilitate the fixing of the conductive sleeve 33, in the embodiment, a round hole is coaxially formed in the lower bottom surface of the marble stone and the charging barrel accommodating hole in a penetrating manner, and during installation, the conductive sleeve 33 can be fastened with the marble stone through a high-temperature adhesive (resistant to heat at 1000 ℃).

Further, in the present embodiment, the feeding end of the charging barrel 31 is provided with a sealing cover 7, the sealing cover 7 is extended with an air nozzle 71 for connecting with an external pressurizing device, and the insulating heat conductor 1 on one side of the sealing cover 7 is provided with a pressing plate assembly 8 for fastening the sealing cover 7 and the charging barrel 31. The pressing plate 81 of the pressing plate component 8 is pulled upwards by hands, then is pressed on the edge of the sealing cover 7 after being selected to be in a proper position, so that the metal luer connector at the tail end of the syringe can be pressed on a brass part, and the reliability of electric conduction is greatly improved.

Furthermore, the high-voltage electrostatic melt spinning device adopting the structural design is also provided with a fixed frame 9 which is convenient to fasten with an external component and is fastened on the top surface of the marble stone.

In this embodiment, although the marble stone block has excellent high temperature resistance, it can be easily heat-resistant to 450 ℃. However, the heating body 2 is controlled to heat the marble stone block to 120 ℃ due to the problems of the material of the economical and general syringe itself, but such a temperature is sufficient for general melt spinning of the polymer.

Further, the temperature sensing probe 5, the heating element 2 and the high-voltage electrostatic connector 4 in this embodiment are all electrically connected to an external electric control device, and are commonly used in the prior art, and are not described herein.

Adopt above-mentioned structural design's high voltage static melt spinning device for the high-tension electricity that is connected with shower nozzle 32 effectively separates with the alternating current that heat-generating body 2 is connected, has then effectively avoided two kinds of voltages because of the mutual interference that the distance is too close to cause, and then very big reduction the risk that components and parts were punctured.

The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.

Claims (10)

1. A high-voltage electrostatic melt spinning device is characterized in that: the device comprises an insulating heat conductor (1), heating bodies (2) and a melt injection mechanism (3) which are embedded in the insulating heat conductor (1) at intervals, and a high-voltage electrostatic connecting piece (4) which is electrically connected with the melt injection mechanism (3); the melt injection mechanism (3) comprises a charging barrel (31), a spray head (32) connected with the discharge end of the charging barrel (31) and used for melt spinning forming, and a conductive sleeve (33) embedded in the insulating heat conductor (1) and matched with the spray head (32), wherein the conductive sleeve (33) is electrically connected with the high-voltage electrostatic connecting piece (4).

2. The high voltage electrostatic melt spinning device of claim 1, wherein: the lower port of the conductive sleeve (33) is provided with a plug (34) which is convenient for the nozzle (32) to replace, the plug (34) and the conductive sleeve (33) are penetrated to be provided with a containing cavity, and the nozzle (32) is penetrated and arranged in the containing cavity and is tightly attached to the inner wall of the cavity of the containing cavity.

3. The high voltage electrostatic melt spinning apparatus of claim 2, wherein: the conductive sleeve (33) and the plug (34) are integrally processed by brass, and the plug (34) is in threaded connection with the conductive sleeve (33).

4. The high voltage electrostatic melt spinning device of claim 1, wherein: the high-voltage electrostatic connecting piece (4) penetrates through the side wall of the insulating heat conductor (1) and is fastened with the conductive sleeve (33).

5. The high voltage electrostatic melt spinning apparatus of claim 2, wherein: the spray head (32) comprises a first spray head part (321) which is in through connection with the charging barrel (31) and a second spray head part (322) which is in replaceable connection with the first spray head part (321), and a material nozzle of the second spray head part (322) is exposed out of the plug (34).

6. The high voltage electrostatic melt spinning apparatus of claim 5, wherein: the lower end face of the plug (34), the lower end face of the conductive sleeve (33) and the lower bottom face of the insulated heat conductor (1) are arranged in a coplanar manner.

7. The high voltage electrostatic melt spinning device of claim 1, wherein: the insulating heat conductor (1) is set to be a marble stone or a ceramic block, and a fixing frame (9) which is convenient to fasten with an external component is fastened on the insulating heat conductor (1).

8. The high voltage electrostatic melt spinning device of claim 1, wherein: the pan feeding end of feed cylinder (31) is provided with sealed lid (7), sealed lid (7) are extended there is air cock (71) that is used for being connected with outside supercharging device.

9. The high voltage electrostatic melt spinning apparatus of claim 8, wherein: the insulating heat conductor (1) on one side of the sealing cover (7) is provided with a pressing plate assembly (8) for fastening the sealing cover (7) and the charging barrel (31).

10. The high voltage electrostatic melt spinning device of claim 1, wherein: the temperature sensing probe (5) is embedded in the insulating heat conductor (1), and the temperature sensing probe (5), the heating body (2) and the high-voltage electrostatic connecting piece (4) are all electrically connected with an external electric control device.

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