KR20210147768A - Electrospinning apparatus for manufacturing nanofiber sheet - Google Patents

Abstract

The present invention relates to an electrospinning device for manufacturing a nanofiber sheet, which includes controls thickness of a nanofiber layer coated on a film. The electrospinning device includes a film feeding part, film recovery part, collector part, spinning part and feeding direction adjusting part. According to the present invention, by repeatedly moving a feeding direction of the film in the opposite direction to the feeding direction in a predetermined section by the feeding direction adjusting part, a predetermined area of the film can be repeatedly coated to control the thickness of the film.

Description

Electrospinning device for manufacturing nanofiber sheet {ELECTROSPINNING APPARATUS FOR MANUFACTURING NANOFIBER SHEET}

The present invention relates to an electrospinning device, and more particularly, to an electrospinning device for manufacturing a nanofiber sheet capable of controlling the thickness of a nanofiber layer coated on a film.

In general, nanofiber refers to microfibers with a diameter of only tens to hundreds of nanometers, and is used as a material that exhibits high performance throughout the industry, such as filters using nonwoven fabrics, miniaturization of electronic devices, high functionality, and use of biological tissues. In traditional industries such as machinery and chemical industries, the application of nanomaterials for high functionalization is gradually increasing.

In addition, the application fields of the nano film include electrostatic discharge materials and electromagnetic wave shielding materials that can be used for electronic product packaging and transport equipment, disk drives, automobile fuel systems, and the like, and e-painting for automobile exteriors.

Electrospinning is used as a method for manufacturing such a nanofiber film, and the electrospinning method utilizes a phenomenon in which fibers are formed when an electrostatic force is applied to a polymer solution or melt having a viscosity. A nanofiber film can be manufactured through a process in which the nanofiber web is integrated thereon.

However, in the conventional electrospinning apparatus, the position of the nozzle is fixed and the transfer direction of the film is operated only in one direction, so controlling the thickness of the nanofiber coating layer through electrospinning on the film transferred in one direction is a limited problem there was

In addition, since the conventional electrospinning device radiates a spinning solution onto a film through a plurality of nozzles spaced apart from each other at regular intervals, the solution emitted from each nozzle is uniformly applied to the entire surface of the film due to the installation spacing of the nozzles. There was a problem that it didn't work.

Republic of Korea Patent Publication No. 10-2011-0105655 (published on September 27, 2011)

The present invention has been devised to solve the above problems, and the present invention is to provide an electrospinning apparatus capable of controlling the thickness of a nanofiber layer applied to a film.

In addition, the present invention is to provide an electrospinning device that can uniformly apply the nanofiber to the surface of the film.

In order to solve the above problems, the electrospinning apparatus for manufacturing a nanofiber sheet of the present invention is a film supply unit including a first shaft to which the film supply roll is coupled, is installed to be spaced apart from the first shaft, and the film of the film supply roll is wound. A film recovery part including a second shaft to which the film recovery roll is coupled, a collector part including a collector base disposed between the film supply part and the film recovery part and disposed on the upper part of the film, and installed spaced apart from the lower part of the collector part, It may include a radiation part including a nozzle unit having an end disposed toward the collector part, and a supply direction adjusting part connected to the first shaft and converting the rotation direction of the first shaft in both directions.

In addition, the supply direction control unit, a first rotation motor installed spaced apart from the first shaft, a rotation conversion unit coupled to the first rotation motor, a rotation conversion unit and a pair of rotating bodies connected to the first shaft, respectively. It may include a rotation transfer unit.

In addition, the electrospinning apparatus for manufacturing a nanofiber sheet of the present invention may further include a spinning position moving part installed under the spinning part to move the spinning part in the width direction of the film.

In addition, the electrospinning device for manufacturing a nanofiber sheet of the present invention is an electrospinning device for manufacturing a nanofiber sheet further comprising a film drying unit installed to be spaced apart from the lower portion of the film recovery unit.

In addition, the electrospinning apparatus for manufacturing a nanofiber sheet of the present invention is coupled to the first plate where the film supply unit is installed and the first lifting unit for elevating the film supply unit toward the collector base, and the second plate on which the film recovery unit is installed. It may further include a second elevating unit for elevating the film recovery unit toward the collector base.

The device of the present invention can spin the nanofibers while repeatedly moving the film in both directions by changing the moving direction of the film to the supply direction and the opposite direction, respectively, so that the thickness of the nanofiber layer applied to the film can be adjusted.

In addition, the present invention can improve the uniformity because the nanofiber can be uniformly applied to the surface of the film by moving the position of the spinning part in the width direction of the film.

1 is a perspective view schematically showing an electrospinning apparatus for manufacturing a nanofiber sheet according to an embodiment of the present invention.
2 is a front view schematically showing an electrospinning apparatus for manufacturing a nanofiber sheet according to a first embodiment of the present invention.
3 is a front view schematically showing an electrospinning apparatus for manufacturing a nanofiber sheet according to a second embodiment of the present invention.

Advantages and features of the present invention, and a method for achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms.

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

1 is a perspective view schematically showing an electrospinning apparatus for manufacturing a nanofiber sheet according to an embodiment of the present invention. In addition, FIG. 2 is a front view schematically showing an electrospinning apparatus for manufacturing a nanofiber sheet according to an embodiment of the present invention.

1 and 2, the electrospinning apparatus 100 for manufacturing a nanofiber sheet according to this embodiment is a film supply unit 10, a film recovery unit 20, a collector unit 30, a spinning unit 40 and It may include a supply direction control unit (50).

The film supply unit 10 may include a first shaft 11 to which the film supply roll 10a is coupled.

The first shaft 11 may be rotatably installed on a frame (not shown) of the main body 1 , and may rotate the film supply roll 10a as it rotates.

Here, the film supply unit 10 may supply the film 1 wound on the film supply roll 10a in one direction while the first shaft 11 is rotated. In this case, the film supply unit 10 may supply the film 1 by rotating the film supply roll 10a and releasing the film 1 from the film supply roll 10a.

The film recovery unit 20 may include a second shaft 21 to which the film recovery roll 20a is coupled.

The second shaft 21 may be rotatably installed in the frame of the main body 1 while being spaced apart from the first shaft 11 in the transport direction of the film 1, and rotate the film recovery roll 20a as it rotates. can do it

Here, the second shaft 21 is rotated in the same direction as the rotation direction of the first shaft 11 , and the film 1 transferred by the film supply unit 10 may be wound on the film recovery roll 20a.

That is, the film recovery unit 20 may recover the film 1 transferred by the film supply unit 10 .

In this way, according to this embodiment, the film 1 supplied from the film supply unit 10 is transferred in one direction and can be recovered through the film recovery unit 20 , and the film supply unit 10 and the film recovery unit 20 . The collector unit 30 may be installed between the .

The collector unit 30 may be installed between the film supply unit 10 and the film recovery unit 20 , and may include a collector base 31 .

The collector base 31 may be formed in the form of a plate and may be disposed on top of the film 1 transferred from the film supply unit 10 to the film recovery unit 20 . Here, the collector base 31 may be connected to a ground line and serve as a ground terminal.

The radiation unit 40 may include a nozzle unit 41 spaced apart from the lower portion of the collector unit 30 .

The nozzle unit 41 may include a plurality of pipes 41b spaced apart from the nozzle block 41a along the transport direction of the film 1 , and a plurality of nozzles in the plurality of pipes 41b. A coupling hole 41c in which (not shown) can be installed may be formed. Accordingly, the plurality of pipes 41b may be disposed so that an end of each of the plurality of nozzles faces upward.

In addition, the radiation unit 40 may be provided with a solution supply unit 42 connected to the nozzle unit 41 as shown in the figure, and a plurality of syringes 42a of the solution supply unit 42 are provided. It can be connected to each of the pipe (42a) of. The radiating unit 40 may inject a solution into the plurality of pipes 41b from the syringe 42a by the operation of a pump (not shown).

Here, the radiating unit 40 may electrospinning the solution supplied therein through the nozzle. That is, the radiating unit 40 may electrospinning the solution in an upward direction toward the collector base 31 .

Thus, according to this embodiment, the nanofibers electrospun by the spinning unit 40 may be integrated in the collector base 31 , and since the collector base 31 is located on the upper part of the film 1 , the electrospun nanofibers are The nanofibers are integrated in the form of nanofibers on the surface of the film 1 and may be formed as a nanofiber layer.

In addition, the film 1 on which the nanofiber layer is formed is wound on the film recovery roll 20a and may be recovered by the film recovery unit 20 .

In this case, the electrospinning apparatus 100 for manufacturing a nanofiber sheet according to the present embodiment may change the transport direction of the film 1 .

The supply direction control unit 50 may be connected to the first shaft 11 , and may change the rotation direction of the first shaft 11 in both directions. That is, the supply direction control unit 50 may switch the transport direction of the film 1 in both directions.

Here, the supply direction control unit 50 may rotate the first shaft 11 in one direction and the opposite direction so that the film 1 can be repeatedly moved for each predetermined section.

In the conventional electrospinning apparatus, in order to control the thickness of the nanofiber layer coated on the film, the amount of radiation of the solution emitted from the nozzle is increased or the supply rate of the film is slowed so that a maximum amount of nanofibers can be coated, but in one direction There was a problem that it could not be formed into a nanofiber layer of a desired thickness due to the supplied film.

According to this embodiment, since the film 1 can be switched and moved in the supply direction and the opposite direction, respectively, the nanofibers are formed in a certain area of the film 1 as the film 1 is repeatedly moved in both directions in a certain section. It may be repeatedly spun to form a thick coating layer.

Therefore, according to this embodiment, it is possible to adjust the thickness of the nanofiber layer coated on the film (1).

Specifically, referring to FIGS. 1 and 2 , the supply direction adjusting unit 50 may include a driving motor 51 , a conversion unit 52 , a driving rotating body 53 , and a driven rotating body 54 .

The driving motor 51 may be installed to be spaced apart from the first shaft 11 , and the rotating shaft may rotate in both directions.

The conversion unit 52 may be shaft-coupled to the rotation shaft of the driving motor 51 and may include a clutch (not shown).

Here, the conversion unit 52 induces the rotational operation by hooking the rotation shaft to the driving motor 51 by the movement of the clutch, and inducing the function of the brake while releasing the clutch hung on the driving motor 51 to induce the function of the driving rotation body. It is possible to block the rotational force transmitted to (53).

That is, the conversion unit 52 may transmit the rotational force of the driving motor 51 to the driving rotating body 53 .

The drive rotating body 53 may be shaft-coupled to the conversion unit 52, for example, may be formed as a drive pulley.

The driven rotating body 54 may be connected to the driving rotating body 53 , for example, formed of a driven pulley and connected to the driving rotating body 53 by a belt. And, the driven rotating body 54 may be shaft-coupled to the first shaft (11).

In this way, the supply direction adjusting unit 50 may rotate the first shaft 11, and according to control, the rotation direction of the first shaft 11 may be switched to the existing supply direction or the opposite direction to rotate. .

As a result, according to the electrospinning apparatus for manufacturing a nanofiber sheet according to the present embodiment, the rotational force of the driving motor 51 transmitted to the first shaft 11 can be temporarily blocked by the operation of the clutch, so that the component is overloaded when the rotational direction is changed. It is possible to minimize the jamming, it is possible to stably convert the rotation of the first shaft 11 by the conversion unit (52).

Here, in this embodiment, the supply direction control unit 50 is described as being installed in the film supply unit 10, in order to change the transport direction of the film 1 to one side and the other side, respectively, the rotation of the film supply unit 10 Since the direction in which the second shaft 21 of the film recovery unit 20 rotates must be switched to correspond to the change, a supply direction control unit (not shown) having the same structure may be installed in the film recovery unit 20 as well. , Its configuration and operation are the same as the above-described control unit, so a detailed description of the same configuration will be omitted.

In addition, referring to FIGS. 1 and 2 , the electrospinning apparatus 100 for manufacturing a nanofiber sheet according to the present embodiment may include a spinning position moving unit 60 .

The radiating position moving unit 60 may include a linear motor 61 installed under the radiating unit 40 .

The linear motor 61 may move the radiating part 40 in the width direction of the film 1 . In other words. The radiation position moving unit 60 may move the radiation unit 40 in the width direction (Y-axis direction) of the film 1 intersecting the transport direction of the film 1 .

After all, according to the electrospinning apparatus 100 for manufacturing a nanofiber sheet according to this embodiment, since the nanofiber can be spun while the spinning part 40 is moved, the nanofiber spun toward the film 1 is the film 1 ) can be uniformly applied to the surface of the nanofiber layer, thereby improving the uniformity of the nanofiber layer.

In addition, the radial position moving unit 60 may include a guide unit 62 installed to be spaced apart from the linear motor 61 at the lower portion of the radiating unit 40 .

The guide unit 62 may include a fixed body 62a and a guide rod 62b.

The fixed body 62a may be fixedly installed to the lower frame, and the guide rod 62b may be slidably coupled thereto.

The guide rod 62b may be coupled to the lower portion of the nozzle unit 41 and move together with the nozzle unit 41 .

In this case, the guide unit 62 may be installed in parallel with the linear motor 61 .

As a result, the guide unit 62 may guide the movement of the radiation unit 40 moved by the linear motor 61 .

On the other hand, although not shown, the spinning unit 40 of the electrospinning apparatus 100 for manufacturing a nanofiber sheet according to the present embodiment may include a rotating unit (not shown).

The rotating unit may include a rotating plate (not shown) coupled to the lower plate of the radiating unit 40, and rotate the rotating plate by a separate rotating motor to rotate the radiating unit 40 clockwise or counterclockwise with respect to the Z axis. It can be rotated clockwise.

Here, the spray nozzles are installed in the nozzle unit 41 of the radiation unit 40 according to the present embodiment in the form of a grid arrangement. It can be moved from the initial radial position and placed into the empty space of the grid arrangement.

For example, the rotational operation of the rotating unit may be performed repeatedly by a predetermined rotational angle in the clockwise and counterclockwise directions, in contrast to the radial operation of the radiating unit 40 in either a clockwise or counterclockwise direction. may be performed continuously.

That is, the electrospinning apparatus 100 for manufacturing a nanofiber sheet according to this embodiment is arranged at regular intervals to change the position of a nozzle that radiates a solution through a rotation unit so that the nanofibers are evenly spun on the surface of the film 1 . make it possible

After all, according to the electrospinning apparatus 100 for manufacturing a nanofiber sheet according to this embodiment, the nanofibers are not accumulated only in a certain section, and the nanofibers can be accumulated even in an empty section, so that the uniformity of the nanofiber layer can be further improved. .

In addition, referring to FIGS. 1 and 2 , the collector part 30 of the electrospinning apparatus 100 for manufacturing a nanofiber sheet according to the present embodiment may include a lifting unit 32 .

The lifting unit 32 may be installed on the upper portion of the collector unit 30 and one end may be fixedly connected to the frame of the device.

The elevating unit 32 may elevate the collector base 31 in a direction (Z-axis direction) with respect to the radiation unit 40 .

After all, since the electrospinning apparatus 100 for manufacturing a nanofiber sheet according to this embodiment can adjust the interval between the collector base 31 and the nozzle unit 41, the electrospun nanofibers coated on the film 1 are You can change the tissue size.

In addition, referring to FIGS. 1 and 2 , the electrospinning apparatus 100 for manufacturing a nanofiber sheet according to the present embodiment may further include a film drying unit 70 .

The film drying unit 70 may be installed in the lower portion of the film recovery unit 20, and a predetermined heat is applied to the film 1 wound by the film recovery unit 20 to apply a predetermined amount of heat to the surface of the film 1 . The fiber layer can be cured and dried.

Here, the film drying unit 70 may adjust the height and spacing of the heater 71 through the position adjusting unit 72 , and the position of the heater 71 may be appropriately adjusted according to the height of the collector base 31 . .

After all, according to this embodiment, since the thickness of the nanofiber layer coated on the surface of the film 1 may be formed to be thicker than before, as the heat is supplied from the film drying unit 70, the ratio due to the thickness of the nanofiber layer It is possible to prevent the drying area from being generated in advance.

Therefore, the electrospinning apparatus for manufacturing a nanofiber sheet according to this embodiment can prevent the deformation of the film 1 by appropriately drying the nanofiber layer even when the thickness of the coated nanofiber layer is increased.

In addition, referring to FIGS. 1 and 2 , the electrospinning apparatus 100 for manufacturing a nanofiber sheet according to this embodiment may include an interleaving paper supply unit 80 for supplying the interleaving paper 2 to the film recovery unit 20 . have.

The interleaf supply unit 80 may include a third shaft 81 that is installed to be spaced apart from the second shaft 21 .

The third shaft 81 may be disposed at a position opposite to the first shaft 11 and may be rotatably installed in the frame of the device.

At this time, the interleaving paper supply roll 80a may be coupled to the third shaft 81 , and the third shaft 81 may be rotated to rotate the interleaving paper supply roll 80a.

Here, the interleaving sheet supply unit 80 may supply the interleaving sheet 2 of the interleaving sheet supply roll 80a to the film recovery unit 20 while the third shaft 81 is rotated.

At this time, the interleaving sheet supply unit 80 does not supply the interleaving sheet 2 to the film recovery unit 20 when the above-described supply direction control unit 50 is operated and the film 1 is repeatedly moved for a certain section. After the coating operation, the interleaving paper (2) can be connected to the film (1).

That is, according to this embodiment, the interleaving paper 2 supplied to the film recovery roll 20a by the interleaving paper supply unit 80 may be positioned so as to be in contact with the surface of the film 1 coated with the nanofiber layer, and the film ( It may be laminated together with 1) and wound on the film recovery roll 20a.

As a result, according to the electrospinning apparatus for manufacturing a nanofiber sheet according to the present embodiment, the interleaving paper supply unit 80 is installed to supply the interleaving paper 2 to protect the coated surface of the nanofiber layer-coated film 1 .

The operation of the electrospinning apparatus for manufacturing the nanofiber sheet of the present invention configured as described above will be described.

First, the film 1 supplied from the film supply unit 10 may be transferred to and recovered from the film recovery unit 20 .

Then, the film 1 transferred from the film supply unit 10 is disposed under the collector unit 30 and transported, and the nanofiber layer is formed while the nanofibers electrospun by the spinning unit 40 are integrated on the surface. can

At this time, the supply direction control unit 50 may change the supply direction of the film 1 by the film supply unit 10 , and allow the film 1 to be moved while repeating a predetermined section.

That is, the film 1 may be repeatedly moved in the supply direction and the opposite direction, and the nanofibers spun by the spinning unit 40 may be thickly coated on the surface of the film 1 .

As a result, the nanofiber layer coated on the surface of the film (1) can be formed by laminating in several layers, and by setting the number of repetitions of the section in which the film (1) is moved, the amount of the nanofiber layer stacked, that is, the thickness can be adjusted. have.

In addition, the radial position moving unit 60 may move the position of the radiating unit 40 in the Y-axis direction.

That is, while the film 1 is repeatedly moved in a certain section, the nanofiber can be uniformly applied to the surface of the film 1 while the position of the spinning unit 40 is repeatedly moved in the width direction of the film 1 . .

In this way, the surface of the film 1 moved from the film supply unit 10 to the film recovery unit 20 may be coated with a nanofiber layer having a uniform distribution of nanofibers and a thick thickness.

The coating operation of the nanofiber layer may be continuously performed due to the roll-to-roll structure, and a continuous nanofiber layer may be formed.

In addition, since the rotation unit can change the position of the nozzle by rotating the spinning unit 40 in one direction, the position at which the nanofibers are spun on the surface of the film 1 is changed on the surface of the film 1 . It is possible to improve the uniformity while dispersing the positions of the nanofibers to be integrated.

In addition, the film drying unit 70 corresponds to the height of the collector base 31 and can be adjusted in height, and the coated surface of the film 1 recovered by the film recovery unit 20 can be quickly dried.

That is, according to the embodiment of the present invention, even if the thickness of the nanofiber layer is formed thick through the drying operation by the film drying unit 70, the coated surface can be dried quickly.

Then, the coated film 1 is wound on the film recovery roll 20a, and as the interleaving paper 2 supplied from the interleaving paper supply unit 80 is wound on the film recovery roll 20a together with the film 1, the interleaving paper The coating surface formed on the surface of the film (1) by (2) can be protected.

That is, according to the embodiment of the present invention, since the interlayer 2 is laminated with the coated film 1 and wound on the film recovery roll 20a, the coated surface can be protected.

As a result, even if a non-dried area occurs, the film can be prevented from being deformed by protecting the coating surface so that the invasive action does not occur in the film 1 of another area wound on the surface of the nanofiber layer by the interlayer 2 .

Meanwhile, FIG. 3 shows an electrospinning apparatus 200 for manufacturing a nanofiber sheet according to a second embodiment of the present invention.

The electrospinning apparatus 200 for manufacturing a nanofiber sheet according to a second embodiment of the present invention, except for the configuration of the film supply unit 210 and the film recovery unit 220, for manufacturing the nanofiber sheet according to the first embodiment It may have the same configuration as the radiation device 100 .

Therefore, hereinafter, a detailed description of the same configuration as that of the electrospinning apparatus 100 for manufacturing a nanofiber sheet according to the first embodiment of the present invention will be omitted.

Referring to FIG. 3 , the electrospinning apparatus 200 for manufacturing a nanofiber sheet according to the present embodiment may include a lifting unit 290 .

The lifting unit 290 may move each of the film supply unit 210 and the film recovery unit 220 in the vertical direction, and may include a first lifting unit 291 and a second lifting unit 292 .

The first lifting unit 291 may be installed in the film supply unit 210 , and may move the film supply unit 210 .

For example, the first lifting unit 291 may include a first frame 291a in which the film supply unit 210 is installed, and a first lifting cylinder 291b coupled to the first frame 291a.

Here, the first lifting cylinder 291b is fixedly installed on the upper frame of the device and can move the first frame 291a.

The second lifting unit 292 may be installed in the film collecting unit 220 to be spaced apart from the first lifting unit 291 , and may move the film collecting unit 220 .

For example, the second lifting unit 292 may include a second frame 292a in which the film recovery unit 220 is installed, and a second lifting cylinder 292b coupled to the second frame 292a. .

Here, the second lifting cylinder 292b is fixedly installed on the upper frame of the device and can move the second frame 292a.

That is, according to the present embodiment, each of the film supply unit 210 and the film recovery unit 220 may be installed in each frame rather than a single frame.

In other words, in this embodiment, the frame in which the film supply unit 210, the film recovery unit 220 and the collector unit 230 are installed may be divided into three plates, and the first frame 291a has a film supply unit ( 210 may be installed, the film recovery unit 220 may be installed in the second frame 292a, and the frame (not shown) between the first frame 291a and the second frame 292a has a collector A part 230 may be installed.

Each of the first frame 291a and the second frame 292a is a piston rod (not shown) that moves forward and backward in each piston body (not shown) of the first lifting cylinder 291b and the second lifting cylinder 292b. ) can be moved in the up-down direction.

Accordingly, the first lifting unit 291 can lift and move the film supply unit 210 toward the collector base 231 , and the second lifting unit 292 moves the film recovery unit 220 to the collector base 231 . can be moved upwards and downwards toward

After all, according to the electrospinning apparatus 200 for manufacturing a nanofiber sheet according to the present embodiment, since the lifting operation of the film supply unit 210 and the film recovery unit 220 is possible, the film supply unit 210 and the film recovery unit 220 ) by adjusting the height of the film 201 can be kept constant.

In particular, as the film 201 is supplied, the diameter of the film supply roll 210a decreases and the diameter of the film recovery roll 220a increases, so the angle connected to the rollers R installed at both ends of the collector base 231 and Since the lengths are each different, the tension of the film 201 may be changed from an initially set value.

Accordingly, the electrospinning apparatus 200 for manufacturing a nanofiber sheet according to this embodiment can set the connection angle of the film 201, which varies depending on the diameter size, as a static strength, as the position of each roll is adjusted, and the film 201 It is possible to keep the tension applied to the

Therefore, according to the electrospinning apparatus for manufacturing a nanofiber sheet according to the present embodiment, it is possible to control the tension of the film while maintaining a constant film supply rate, so that it is easy to control the production rate.

The above description is merely illustrative of the technical idea of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those of ordinary skill in the art to which the present invention pertains. Accordingly, the embodiments disclosed in the present invention are for explanation rather than limiting the technical spirit of the present invention, and the scope of the technical spirit of the present invention is not limited by these embodiments.

Therefore, the protection scope of the present invention should be interpreted by the following claims rather than being limited by the above-described embodiments, and all technical ideas within an equivalent range should be interpreted as being included in the scope of the present invention.

100, 200: Electrospinning device for manufacturing nanofiber sheet
10, 210: film supply unit 20, 220: film recovery unit
30, 230: collector part 40, 240: radiating part
50: supply direction control unit 60: radial position moving unit
70: film drying unit 80: interleaving paper supply unit
290: elevator

Claims (5)

a film supply unit including a first shaft to which the film supply roll is coupled;
a film recovery unit installed to be spaced apart from the first shaft and including a second shaft to which a film recovery roll on which the film of the film supply roll is wound is coupled;
a collector unit installed between the film supply unit and the film recovery unit and including a collector base disposed on the film;
a radiation unit installed to be spaced apart from a lower portion of the collector unit and including a nozzle unit having an end of the nozzle disposed toward the collector unit; and
Electrospinning apparatus for manufacturing nanofiber sheets including; a supply direction control unit connected to the first shaft and converting the rotation direction of the first shaft in both directions. According to claim 1,
The supply direction control unit,
A rotation transmission unit including a first rotation motor installed to be spaced apart from the first shaft, a rotation conversion unit coupled to the first rotation motor, the rotation conversion unit, and a pair of rotating bodies respectively connected to the first shaft Electrospinning device for manufacturing nanofiber sheets comprising a. According to claim 1,
Electrospinning apparatus for manufacturing a nanofiber sheet further comprising a spinning position moving part installed under the radiation part to move the radiation part in the width direction of the film. According to claim 1,
Electrospinning apparatus for manufacturing nanofiber sheets further comprising a film drying unit spaced apart from the lower portion of the film recovery unit. According to claim 1,
a first lifting unit coupled to the first plate on which the film supply unit is installed and lifting and lowering the film supply unit toward the collector base; and
a second lifting unit coupled to the second plate on which the film collecting unit is installed and lifting and lowering the film collecting unit toward the collector base; Electrospinning device for manufacturing nanofiber sheets further comprising.

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