KR100658802B1 - Electrospinning apparatus for copper plate ground connection type - Google Patents

Abstract

The present invention relates to a copper plate grounding type electrospinning apparatus for manufacturing nanofibers with uniformity, reproducibility, and reliability for the development of high value-added nanofiber applications. It is provided on one side of the base and the fiber yarn taking means having a polarity so that an electric field is formed between the fiber yarn taking means and spraying the nanofiber solution toward the fiber yarn taking means with a plurality of strands of + polar fiber yarns. And three yarns which are provided in the lower portion between the injection means and the fiber yarn taking means, which are the middles of the base, and are moved to the fiber yarn winding means, which are wound in multiple layers while falling. It characterized in that it comprises a control means for controlling the fiber winding means in accordance with an external signal.

Description

Copper-spinning electrospinning apparatus {Electrospinning apparatus for copper plate ground connection type}

1 is a perspective view showing a manufacturing apparatus of the present invention.

Figure 2 is a front view showing the manufacturing apparatus of the present invention.

Figure 3 is an enlarged perspective view of the fiber yarn taking means constituting the manufacturing apparatus of the present invention.

Figure 4 is an enlarged perspective view of the injection means constituting the manufacturing apparatus of the present invention.

Figure 5 is an enlarged perspective view of the fiber yarn winding means constituting the manufacturing apparatus of the present invention.

Figure 6 is a schematic front view showing another embodiment of the injection means constituting the manufacturing apparatus of the present invention.

Figure 7 is a perspective view showing another embodiment of the fiber yarn winding means constituting the manufacturing apparatus of the present invention.

8 is a perspective view showing another embodiment of the manufacturing apparatus of the present invention.

9 is a perspective view showing another embodiment of the manufacturing apparatus of the present invention.

<Explanation of symbols for main parts of the drawings>

1: Base

    11: guide groove

2: injection means

    21: support

    22: syringe

         221 Cone Nozzle

    23: fixing means

         231: vertical stand, 232: syringe fixing groove, 233: angle changing means,

         234: horizontal bar, 235: angle change unit

    24: high voltage current supply

    25: piston means

         251: syringe pump, 252 piston, 253; Piston Moving Part, 254: Actuator

3: fiber yarn winding means

    31: support

         311: protrusion

    32: winding roll

         321: axis of rotation

    33: drive means

         331: motor, 332: power transmission means

    34: means of transportation

         341: linear motor moving body, 342: linear motor fixed body

4: fiber yarn withdrawing means

    41: support

         411: movable body, 412: guide groove, 413: lifting plate, 415: intermittent bolt

    42: conduction plate

5: transparent box

    51: exhaust pipe

         511: blower, 512: temperature sensor, 513: humidity sensor

    52: vacuum pump

6: control means

    61: shooting means

    62: control computer

7: lighting means

The present invention relates to a copper-grounded electrospinning apparatus, and more particularly, to a copper-grounded electrospinning apparatus for manufacturing nanofibers with uniformity, reproducibility, and reliability for developing high value-added nanofibers. It is about.

In general, nanofibers (hereinafter referred to as "nanofibers") have high value-added fibers widely used for filters, electrolytes of lithium ion batteries or recently artificial skins because of their large surface area compared to their volume. to be.

As a conventional method for producing nanofibers, a drawing, a template synthesis, a phase separation, a self-combination method, an electrospinning method and the like have been used.

Therefore, electrospinning method is widely used as a method for producing a large amount of nanofibers, the conventionally known electrospinning method has a problem that the density and thickness of the nanofibers are irregular and the continuous productivity is low.

Accordingly, the present invention is an improvement of the conventional nanofiber manufacturing apparatus according to the electrospinning method, and the device for monitoring and controlling the electrospinning behavior so as to uniformly arrange the nanofibers and to stably electrospin the nanofibers. An object of the present invention is to provide a copper grounding type electrospinning device that includes the same.

The present invention for achieving the above object is provided on the other side of the base through an external power source-a polarized fiber taking means having a polarity, and provided on one side of the base between the fiber yarn taking means Three-fiber yarn which is formed and moved in the lower portion between the injection means and the fiber yarn take-up means in the middle of the base, and the injection means for spraying the nanofiber solution toward the fiber yarn take-up means with a multi-strand + polar fiber yarn It is characterized in that it is composed of a fiber yarn winding means wound in a plurality of layers as the fall, and the control means for controlling the injection means and the fiber yarn taking means and the fiber yarn winding means in accordance with an external signal.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a manufacturing apparatus of the present invention, Figure 2 is a front view showing a manufacturing apparatus of the present invention.

The nanofiber manufacturing apparatus of the present invention is provided on both sides of the base 1, the injection means 2 and the fiber yarn take-in means (4) and the injection means for the fiber yarn injection through the electric field generated between (2) and the fibrous yarn winding means (3), which is provided in the lower portion between the fiber yarn taking means (4) and moved to be wound in multiple layers while falling, and the injection means (2) and the fiber yarn taking means ( 4) and control means (not shown) for controlling the fiber yarn winding means 3 according to an external signal.

That is, the fiber yarn taking means 4 is provided on the other side of the base 1 and is provided with polarity through the supply of power applied from the outside, and a support 41 made of a synthetic resin which is a non-conductor, and It is fixed to the upper portion of the support 41 is composed of a conductive plate 42 having a polarity through the external power supply.

In addition, the injection means 2 is provided on one side of the base 1 so that an electric field is formed between the fiber yarn taking means 4 so that the nanofiber solution is a plurality of strands of + polar fiber fibers It is configured to be sprayed toward the take-in means (4).

That is, the injection means (2) is provided with a support (21) which is erected to protrude perpendicularly to the base (1), and through the fixing means 23 on the upper portion of the support (21) and the fiber yarn taking means One or more syringes 22 filled with a solution including a conductor cone nozzle 221 for injecting a nanofiber solution toward (4), and a cone nozzle by supplying a high voltage current to the conductor cone nozzle 221 from the outside. An electric field is formed between the 221 and the fiber yarn taking-out means 4 to inject a solution in the syringe 22, and the high-voltage current feeder 24 to make the injected fiber yarns have a + polarity.

In addition, the fiber yarn winding means (3) is provided in the lower portion between the injection means 2 and the fiber yarn taking means (4) which is the middle of the base 1 as described above is moved by gravity As it falls, it is wound up in multiple layers.

That is, the fiber yarn winding means 3 is provided on the base 1 and is rotatable between the support 31 including the front and rear protrusions 311 and the front and rear protrusions 311. It is composed of a winding roll 32, the fiber yarn is wound on the surface, and the drive means 33 for applying a rotational force to the winding roll (32). In addition, the rotation shaft of the winding roll 32 is installed to be precisely rotated while reducing friction through the bearing bracket 312 provided in the front and rear protrusions 311.

In addition, the control means (6) is provided on one side coaxially with respect to the take-up roll 32, the shooting means 61 for taking a picture of the state of the fiber yarn wound on the take-up roll 32 and outputs it as an image, and the It further comprises a control computer 62 for receiving the image data output from the photographing means 61 to analyze the current winding state of the fiber yarn to control the voltage of the high voltage current supply 24. In particular, it is preferable that the photographing means 61 use a CCD camera capable of photographing continuously.

And the upper part of the base 1 is further provided with a lighting device 7 for shining the light necessary for the shooting of the photographing means 61, the lighting device 7 is a laser lighting device having a strong light intensity Is preferably used.

Hereinafter, the nanofiber production apparatus of the present invention configured as described above in more detail.

Figure 3 is an enlarged view of the fiber yarn taking means constituting the manufacturing apparatus of the present invention, the fiber yarn taking means 4 is composed of a support 41 and a conductive plate 42 having a -polarity of the conductive plate (42) consists of a copper plate with excellent conductivity.

And the support 41 is configured to vary the installation height of the conductive plate 42, it is provided to be movable along the guide groove 11 provided in the transverse direction on the upper portion of the base (1) The movable body 411 includes both guide grooves 412 formed vertically in the front and rear, and is lifted by being inserted between the front and rear guide grooves 412 and the height is interrupted through the intermittent bolts 415. It is composed of a lifting plate 413 is provided with a conductive plate 42 in the front.

That is, the intermittent bolt 415 is fastened to one or both of the front and rear guide grooves 412, and the elevating plate 413 which is elevated along the guide grooves 412 through the rotation of the intermittent bolts 415. I can fix it,

4 is an enlarged view of the injection means constituting the manufacturing apparatus of the present invention, wherein the injection means 2 includes a support cone nozzle 221 for injecting the support 21 and the nanofiber solution as described above. One or more syringes 22 filled with a solution and a high voltage current supply 24 for supplying a high voltage current to the conductor cone nozzle 221 from the outside.

The fixing means 23 includes a vertical stand 231 including one or more syringe fixing grooves 232 provided at an upper portion thereof, and a lower stand of the vertical stand 231 of the support stand 21. It is composed of an angle change means 233 is fixed to the angle change is possible at the top.

That is, the angle changing means 233 is provided in the lower portion of the horizontal stage 234 and the vertical stage 231 fixed horizontally through the fixing bolt on the upper portion of the support 21 to the horizontal stage 234 It is composed of an angle change unit 235 including a fixing bolt provided to be able to change the angle through the bolt.

In addition, the support 21 is to be movable along the guide groove 12 provided in the transverse direction in the upper portion of the base 1 so that the injection position of the syringe 22 can be varied.

FIG. 5 shows the fiber yarn winding means constituting the manufacturing apparatus of the present invention. As described above, the fiber yarn winding means 3 includes a winding roll 32 and a winding in which the fiber yarn is wound on the support 31 and the surface thereof. It consists of a drive means 33 for applying a rotational force to the roll (32).

And the take-up roll 32 is to be made of engineering plastics that are non-conductor can improve the adsorption power of the fiber yarn.

In addition, the driving means 33 is provided on the outside of one of the protrusions 311 is driven by an external power source 331 and the rotational force of the winding roll 32 of the rotational force of the motor 331 Timing belt, chain, and V-belt to be transmitted to 321 is to be composed of one of the power transmission means (332).

Hereinafter, the operating relationship of the nanofiber manufacturing apparatus of the first embodiment of the present invention configured as described above is as follows.

1 to 5, the nanofiber manufacturing apparatus according to the present invention, the electric field generated between the injection means 2 and the fiber yarn taking means (4) provided on both sides of the base (1) By allowing the fiber yarn to pass through, through the fiber yarn winding means (3) provided in the lower portion between the injection means 2 and the fiber yarn take-up means (4) to the multiple layers of the fiber yarn falling in gravity It is wound to produce nanofibers.

Therefore, the operation as described above in more detail as follows.

First, an external power source is applied through the control means 6 to the conductive plate 42 of the fiber yarn taking means 4 provided on the other side of the base 1 so as to have a polarity.

In addition, the winding plate 32 constituting the fiber yarn winding means 3 is rotated through the operation of the driving means 33 while making the conductive plate 42 polarized.

Next, a high voltage + current flows into the cone nozzle 221 of the syringe 22 constituting the injection means 2 provided on one side of the base 1. That is, as the high voltage current supply device 24 connected to the cone nozzle 221 is driven through the control means 6, a high voltage + current is caused to flow through the cone nozzle 221.

Then, an electric field is formed between the cone nozzle 221 of the syringe 22 and the conductive plate 42 of the fiber yarn taking means 4, so that the solution filled in the syringe 22 is the cone nozzle 221. As the equilibrium between the internal surface tension of the force and the force generated by the electric field is broken, the solution is sprayed through the cone nozzle 221 and is emitted into the fibers of several strands.

Since the spun fiber yarn is charged with + ions, the spun fiber yarn is moved toward the -pole conductive plate, and the fiber yarn falls downward under the influence of gravity through the process of moving the fiber yarn.

Therefore, the plurality of strands of the fiber yarn falling between the jetting means 2 and the fiber yarn taking-in means 4 is to be continuously wound of the winding roll 32 constituting the fiber yarn winding means (3). That is, the take-up roll 32 is to be rotated through the drive means 33 to continuously wind the fiber yarn falling while passing from the top. In particular, the winding roll 32 is rotated at a uniform speed through the drive means 33, so that the surface of the winding roll 32 to form a nanofiber as the fiber yarn is laminated to a certain thickness.

In addition, when adjusting the density and thickness of the fiber yarn in the manufacturing of the fiber yarn through the process as described above, the support 21 constituting the injection means 2 along the guide groove 12 of the base 1 By moving to both sides it is possible to adjust the injection position of the solution.

In addition, by moving the support (31) constituting the fiber yarn taking means (4) to both sides along the guide groove 12 of the base (1) to vary the strength of the electric field formed in conjunction with the injection means (2) By adjusting, the density and thickness of the fiber to be wound can be adjusted.

In addition, by adjusting the rotational speed of the winding roll 32 constituting the fiber yarn winding means 3 by adjusting the driving force of the motor 331 of the driving means 33, the density and thickness of the wound fiber can be adjusted. will be.

That is, the density and thickness of the fiber can be adjusted by adjusting the distance between the injection means 2 and the fiber yarn taking means 4 provided on both sides of the base 1, as well as the injection means 2 The density and thickness of the fiber may be adjusted by varying the rotational speed of the winding roll 32 constituting the fiber yarn winding means 3 provided between the fiber yarn taking means 4 and the fiber yarn taking means 4.

Therefore, by providing a nanofiber manufacturing apparatus that can freely adjust the density and thickness of the fiber as described above, it is possible to manufacture nanofibers used in various fields through a single device.

On the other hand, the control means 6, the photographing means 61 for photographing the state of the fiber yarn wound on the take-up roll 32 and outputs as an image, and receives the image data output from the photographing means 61 A control computer 62 for controlling the voltage of the high voltage current supply 24 by analyzing the current winding state of the fiber yarn.

Therefore, the cone nozzle is adjusted by the control computer 62 by adjusting the voltage of the current supplied from the high voltage current supply 24 to the conductor cone nozzle 221 of the injection means 2 in accordance with the state of the fiber yarn being wound up. By adjusting the spraying speed of the fiber of several strands to be sprayed through 221 it is possible to wind the fiber yarns wound on the take-up roll 32 without failure.

That is, by adjusting the spraying speed of the fiber yarn by grasping the state of the fiber yarn currently wound through the control computer 62 of the control means 6, it is possible to minimize the defect rate by controlling the winding process of the fiber yarn more precisely. .

Figure 6 shows another embodiment of the injection means constituting the manufacturing apparatus of the present invention, in the injection means 2 of one embodiment as described above, the injection means 2 is a micro syringe pump 251 It is characterized in that it further comprises a piston means 25 for precisely spraying the syringe solution through the cone nozzle 221 through.

The piston means 25 is provided with a piston 252 provided inside each of the syringes 22 and a rear of each of the syringes 22, through an external syringe pump 251. The piston 252 is composed of a piston moving part 253 including an actuator 254 for moving back and forth.

Therefore, by controlling the moving distance of the piston 252 provided in each of the syringes 22 through the operation of the micro-syringe pump 251, the solution in the syringe 22 can be precisely injected. It will have the advantage.

Therefore, the density and thickness of the fiber can be freely adjusted by adjusting the injection amount of the solution through the syringe pump 251.

Figure 7 shows another embodiment of the fiber yarn winding means constituting the manufacturing apparatus of the present invention, in the fiber yarn winding means 3 of the embodiment, the winding means 3 is the support 21 It is characterized in that it further comprises a conveying means 34 which is provided between the lower portion and the upper portion of the base 1 to convey the fiber yarn winding means 3 forward and backward.

That is, the transfer means 34 is provided on the other side of the linear motor moving body 341 and the linear motor moving body 341 on which the support 31 is mounted, and transfers the linear motor moving body 341 through external power supply. , It is characterized by consisting of a linear motor fixed body 342 to move backwards.

Therefore, when the linear motor fixed body 342 is supplied with power, the linear motor moving body 341 provided with the winding roll 32 is moved forward and backward, so that the fiber yarn sprayed is the whole of the winding roll 32. It is to be wound while being distributed to.

Therefore, it is possible to obtain nanofibers having a wide side, and thus have the advantage of widening the application range of nanofibers.

Figure 8 shows another embodiment of the manufacturing apparatus of the present invention, in the nanofiber manufacturing apparatus of the first embodiment, the front, rear, both sides and the upper portion of the nanofiber manufacturing apparatus is fixed to the base (1) A box 5 is further provided, and the upper part of the transparent box 5 includes an exhaust pipe 51 including a blower 511 for transferring harmful components such as solvents generated in the manufacturing process of the nanofibers to the dust collector. It is characterized by further being provided.

And the inside of the transparent box 5 is further provided with a temperature and humidity sensors (512, 513) for measuring the temperature and humidity therein.

Therefore, by releasing harmful components generated while manufacturing nanofibers in the enclosed space to the outside through the exhaust pipe, solvents generated during manufacture can be prevented from being diffused into the interior space and causing damage to humans. will be.

Figure 9 shows another embodiment of the manufacturing apparatus of the present invention, in the nanofiber manufacturing apparatus of the first embodiment, the transparent box (5) fixed to the base before, after and both sides of the nanofiber manufacturing apparatus Is further provided, the upper portion of the transparent box 5 is characterized in that it is further provided with a vacuum pump 52 for maintaining the interior of the transparent box 5 in a vacuum state.

Therefore, in manufacturing the fiber yarns, the wound fibers can maintain a uniform thickness by reducing air deterioration during spinning of the fiber yarns while maintaining the vacuum state.

As described above, the present invention, as well as providing a nanofiber having a uniform density and reliability, as well as having an effect of providing a nanofiber manufacturing apparatus capable of maximizing productivity by continuously producing nanofibers.

Therefore, it is possible to freely adjust the density and thickness of nanofibers manually or automatically, so that nanofibers used in various fields can be manufactured through a single device.

While the present invention has been described with reference to the accompanying drawings, it will be apparent to those skilled in the art that many various obvious modifications are possible without departing from the scope of the invention from this description. Therefore, the scope of the invention should be construed by the claims described to include many such variations.

Claims (20)

A fiber yarn taking means 4 provided on the other side of the base 1 and having a polarity through an external power source; It is provided on one side of the base (1) so that an electric field is formed between the fiber yarn taking means (4) to inject the nanofiber solution toward the fiber yarn taking means (4) with a multi-strand + polar fiber yarn Injection means 2, Fiber yarn winding means (3), which is provided in the lower portion between the injection means 2 and the fiber yarn taking means (4), which is the middle of the base (1), is wound by multiple layers while being dropped by gravity; And Control means (6) for controlling the jetting means (2), the fiber take-up means (4) and the fiber yarn take-up means (3) in accordance with an external signal, Copper plate grounding electrospinning device, characterized in that consisting of. The fiber yarn taking means (4) according to claim 1, Support 41, which is a non-conductor, Copper plate grounding type electrospinning device, characterized in that it is fixed to the upper portion of the support is composed of a conducting plate 42 having a polarity through the external power supply. The copper plate grounding type electrospinning apparatus according to claim 2, wherein the conductive plate (42) is made of a copper plate. The method of claim 2, wherein the support 41, A movable body 411 which is provided to be movable along the guide groove 11 provided in the transverse direction on the upper part of the base 1 and includes both guide grooves 412 formed vertically in the front and the rear; The copper plate contact, characterized in that the elevating plate 413 is sandwiched between the front and rear guide grooves 412, the height is interrupted through the intermittent bolt 415, the upper plate is provided with the conductive plate 42. Knowledge Electrospinning Device. The method of claim 1, wherein the injection means 2, A support 21 erected to protrude perpendicularly to the base 1, At least one syringe filled with a solution including a conductor cone nozzle 221 which is fixed to the top of the support 21 through a fixing means 23 and sprays the nanofiber solution toward the fiber yarn taking means 4. Me (22) Supplying a high-voltage current from the outside to the conductive cone nozzle 221 so that an electric field is formed between the cone nozzle 221 and the fiber yarn taking means 4 to spray the solution in the syringe 22 and to spray Copper plate grounding electrospinning device, characterized in that the fiber yarn is composed of a high voltage current supply (24) to be polarized. According to claim 5, The injection means 2, Copper plate grounding electrospinning apparatus characterized in that it further comprises a piston means for precisely spraying the syringe solution through the cone nozzle through the external micro syringe pump (251). The method of claim 6, wherein the piston means 25, A piston 252 provided in each of the syringes 22, The piston moving part 253 is provided at the rear of each syringe 22 and includes an actuator (not shown) for moving the piston 252 back and forth through an external syringe pump 251. Copper plate grounding electrospinning apparatus characterized in that. The method according to any one of claims 5 to 7, wherein the fixing means 23, A vertical stand 231 including one or more syringe fixing grooves 232 provided at an upper portion thereof; Copper plate grounding type electrospinning apparatus, characterized in that provided in the lower portion of the vertical support (231), the angle changing means (233) is fixed to the upper portion of the support (21) to be fixed. The method of claim 8, wherein the angle changing means 233, It is provided in the lower portion of the horizontal stand 234 and the vertical stand 231 horizontally fixed through the fixing bolt on the upper portion of the support 21 is provided to enable the change of the angle through the bolt on the horizontal stand 234 Copper plate grounding type electrospinning device, characterized in that consisting of an angle change unit 235 including a fixed bolt. The support base 21 according to any one of claims 5 to 7, Copper plate grounding type electrospinning apparatus, characterized in that the movement is provided along the guide groove (12) provided in the transverse direction on the base (1). The method of claim 5, wherein the fiber yarn winding means (3), A support 31 provided on the base 1 and including front and rear protrusions 311, Winding rolls 32 are rotatably provided between the front and rear protrusions 311 to wind the fiber yarn on the surface thereof, and Copper plate grounding type electrospinning apparatus, characterized in that consisting of a drive means 33 for applying a rotational force to the take-up roll (32). The method of claim 11, wherein the winding roll 32, Copper plate grounding electrospinning device, characterized by consisting of non-conductive engineering plastic The method of claim 11, wherein the drive means 33, A motor 331 provided outside one of the protrusions 311 and driven through an external power source; Copper plate grounding electrospinning apparatus, characterized in that consisting of one of the power transmission means 332 of the timing belt, chain, V belt for transmitting the rotational force of the motor 331 to the rotary shaft 321 of the take-up roll 32 . 14. The conveying means (34) according to any one of claims 11 to 13, wherein a conveying means (34) for conveying the fiber yarn winding means (3) forward and backward is provided between the lower portion of the support (21) and the upper portion of the base (1). Copper plate grounding electrospinning device characterized in that it is further provided. The method of claim 14, wherein the transfer means 34, A linear motor moving body 341 on which the support 31 is raised, Copper plate grounding electrospinning apparatus characterized by consisting of a linear motor fixed body 342 is provided in close contact with the other side of the linear motor moving body 341 to move the linear motor moving body 341 to the front and rear through an external power supply. . The method according to claim 11, wherein the control means (6) Photographing means 61 provided on one side of the coiling roll 32 coaxially with respect to the take-up roll 32 to photograph the state of the fiber yarn wound on the take-up roll 32 and output it as an image; And a control computer 62 which receives the image data output from the photographing means 61 and analyzes the winding state of the current fiber yarn to control the voltage of the high voltage current supplyer 24. Knowledge Electrospinning Device. The copper plate grounding type electrospinning apparatus according to claim 16, further comprising an illuminating device (7) on the upper portion of the base (1), which is capable of illuminating light required for the photographing means (61). The method according to any one of claims 1, 2, 5, 6, 7, 11, and 16, further comprising a transparent box (5) fixed to the base (1) before, after, and on both sides of the nanofiber manufacturing apparatus. It is, An upper part of the transparent box (5) is characterized in that the copper plate grounding type electrical, characterized in that further provided with an exhaust pipe (51) including a blower (511) for transferring the harmful components (solvent) generated in the manufacturing process of the nanofibers Spinning device. 19. A copper plate grounding electrospinning apparatus according to claim 18, further comprising a temperature and humidity sensor (512, 513) inside the transparent box (5) for measuring temperature and humidity therein. The method according to any one of claims 1,2,5,6,7,11,16, further comprising a transparent box (5) fixed to the base before, after and both sides of the nanofiber manufacturing apparatus, Copper plate grounding electrospinning apparatus, characterized in that the upper portion of the transparent box (5) is further provided with a vacuum pump (52) for maintaining the interior of the transparent box (5) in a vacuum state.

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