JP5358595B2 - Nanofiber manufacturing apparatus and method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve workability in maintenance of an apparatus for producing nanofibers. <P>SOLUTION: An apparatus 10 for producing nanofibers from a raw material liquid by electrostatic explosion inside a housing 12 comprises: a detachable wall structure 20 constituting a portion of a side wall of the housing 12; an electrolytic spinning head 16 having a nozzle 14 for discharging the raw material liquid to the inside of the housing and having one end 22a supported by the wall structure 20; and a holding mechanism 42 provided in a main body 34 of the housing 12, which is a portion other than the wall structure 20, for holding the other end 22b of the electrolytic spinning head 16 taken out of the housing 12 when the wall structure 20 is removed from the main body 34 of the housing 12. <P>COPYRIGHT: (C)2012,JPO&amp;INPIT

Description

  The present invention relates to a nanofiber production apparatus and method for producing polymer nanofibers from a polymer solution by electrostatic explosion.

  Conventionally, a housing has a collector to which a predetermined potential is applied and a nozzle at a predetermined distance from the collector to which a voltage having a predetermined potential difference (for example, 20 to 200 KV) is applied to the collector. A nanofiber manufacturing apparatus is known (see, for example, Patent Document 1). The nozzle to which the voltage is applied discharges the nanofiber raw material liquid (polymer solution) toward the collector while charging. The discharged raw material liquid undergoes electrostatic explosion on the way to the collector. This electrostatic explosion occurs repeatedly, whereby the raw material liquid is stretched and finally formed into nanofibers. The formed nanofibers accumulate in a sheet placed on the collector.

JP 2008-174855 A

  However, the nanofiber manufacturing apparatus is configured to produce nanofibers by electrostatic explosion in the housing. For this reason, maintenance of the nanofiber manufacturing apparatus, particularly maintenance of the nozzles arranged in the housing (for example, cleaning and replacement) must be performed by the operator entering the housing while ensuring safety. The nature is bad.

  When the size of the nanofiber manufacturing apparatus is increased to produce a large amount of nanofibers, for example, when the number of nozzles is increased and the housing is increased in size, the workability is further deteriorated.

  Then, even if a nanofiber manufacturing apparatus is large sized, this invention makes it a subject to implement | achieve maintenance which is safe and has high workability.

In order to solve the above-mentioned problem, according to the first aspect of the present invention,
A nanofiber production device for producing nanofibers from a raw material liquid by electrostatic explosion inside a housing,
A detachable wall structure that forms part of the side wall of the housing;
An electrospinning head having a nozzle for discharging the raw material liquid into the housing and having one end supported by the wall structure;
A holding mechanism that is provided on the main body of the housing, which is a part other than the wall structure, and holds the other end of the electrospinning head that is taken out of the housing when the wall structure is removed from the main body of the housing. A nanofiber manufacturing apparatus is provided.

According to a second aspect of the invention,
The nanofiber manufacturing apparatus according to the first aspect is provided, in which the holding mechanism is a slide type holding mechanism that holds the other end of the electrospinning head so as to be slidable in the attaching / detaching direction of the wall structure.

According to a third aspect of the invention,
The wall structure has casters,
The nanofiber manufacturing apparatus according to the first or second aspect is provided, wherein the wall structure is attached to and detached from the main body of the housing in a state of being grounded via a caster.

According to a fourth aspect of the invention,
The nanofiber manufacturing apparatus according to the third aspect, in which a caster is provided on the wall structure via a spring member that can expand and contract in the vertical direction.

According to a fifth aspect of the present invention,
The nanofiber manufacturing apparatus according to any one of the first to fourth aspects, in which the nozzle is configured to be detachable from the electrospinning head.

According to a sixth aspect of the present invention,
The nanofiber manufacturing apparatus according to any one of the first to fifth aspects, further including a cap member that closes the nozzle hole of the nozzle.

According to a seventh aspect of the present invention,
A power source provided in the main body of the housing;
An electrospinning head side terminal provided in the electrospinning head and electrically connected to the nozzle;
A housing main body side terminal provided on the main body of the housing and electrically connected to the power source, and in electrical contact with the electrospinning head side terminal;
The electrospinning head side terminal and the housing main body side terminal are configured so that electrical contact is released when the wall structure is removed from the main body of the housing. The nanofiber manufacturing apparatus described in 1) is provided.

According to an eighth aspect of the present invention,
A housing, a detachable wall structure that forms a part of the side wall of the housing, and an electrospinning head that includes a nozzle that discharges the raw material liquid into the housing and is supported at one end by the wall structure. A nanofiber manufacturing method using a nanofiber manufacturing apparatus,
Fabricate nanofibers by dielectric explosion from the raw material liquid discharged from the nozzle of the electrospinning head inside the housing,
Removing the wall structure from the main body of the housing, which is a part other than the wall structure,
There is provided a method for producing nanofibers, in which the other end portion of the electrospinning head taken out of the housing by removing the wall structure from the main body of the housing is held by a holding mechanism provided in the main body of the housing.

  According to the present invention, a wall structure that constitutes a part of the side wall of the housing and that supports one end of the electrospinning head provided with the nozzle is configured to be detachable from the main body of the housing. Maintenance of the nozzle of the electrospinning head can be performed outside the housing simply by removing the body from the main body of the housing. Therefore, maintenance workability and safety are higher than in the case where the maintenance is performed inside the housing. The wall structure removed from the main body of the housing is supported by the other end of the electrospinning head provided on the wall structure being held by a holding mechanism provided on the main body of the housing. Therefore, it is not necessary to make the wall structure itself self-supporting, that is, highly rigid.

It is a side view fragmentary sectional view of the nanofiber manufacturing apparatus of the state which attached the wall structure based on one Embodiment of this invention. It is a side view fragmentary sectional view of the nanofiber manufacturing apparatus of the state which removed the wall structure based on one Embodiment of this invention. It is a perspective view of the electrospinning head concerning one embodiment of the present invention. It is a perspective view which shows the nozzle cap attached to the nozzle of an electrospinning head. It is a perspective view which shows the nozzle of the electrospinning head of the nanofiber manufacturing apparatus which concerns on another embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a partial cross-sectional view (viewed in the X-axis direction) of a nanofiber manufacturing apparatus according to an embodiment of the present invention. As will be described in detail later, the nanofiber manufacturing apparatus 10 shown in FIG. 1 is a part of a production line of a nanofiber sheet (a sheet formed by generating a number of nanofiber layers on a base sheet). It is configured to be functional.

  As used herein, “nanofiber” refers to a filamentous material made of a polymer material and having a submicron-scale diameter. In addition, as polymer substances, various polymers such as petroleum-based polymers such as polyvinylidene fluoride (PVDF), polyvinylidene fluoride-co-hexafluoropropylene, polyacrylonitrile, polymethyl methacrylate, polyethylene, polypropylene, and biopolymers are used. Copolymers and mixtures thereof can be applied. The nanofiber raw material liquid is a solution in which these polymer substances are dissolved.

  As shown in FIG. 1, the nanofiber manufacturing apparatus 10 has a housing 12, and an electrospinning head 16 having a nozzle 14 in the housing 12 and a vertical direction (Z-axis direction) with respect to the electrospinning head 16. ) At a predetermined distance (for example, 100 to 600 mm), and a collector 18 that electrically draws and collects nanofibers generated by the electrospinning head 16.

  The electrospinning head 16 has a base frame 22 that extends in the horizontal direction (Y-axis direction) above the collector 18 from the inner wall surface side of the wall structure 20 that forms part of the side wall of the housing 12. The nozzle 12 is suspended from the base frame 22 via an insulating suspension member 24.

  As shown in FIG. 1, the nozzle 14 includes a plurality of nozzle holes 14 a that discharge the nanofiber raw material liquid toward the collector 18. Further, the nozzle 14 is applied with a voltage such that a predetermined potential difference (for example, 20 to 200 kV) with respect to the potential of the collector 18 (voltage applied to the collector 18). By such a nozzle 14, the raw material liquid is discharged toward the collector 18 while being charged. A method for applying a voltage to the nozzle 14 will be described later.

  The nozzle 14 discharges the raw material liquid stored in the tank 25. The tank 25 is attached to the outer wall surface side of the wall structure 20 of the housing 12 that supports the base frame 22 of the electrospinning head 16. As shown in FIG. 1, the raw material liquid in the tank 25 is delivered to the nozzle 14 by a pump 26 attached to the base frame 22 of the electrospinning head 16. A method for supplying driving power to the pump 26 will be described later.

  As shown in FIG. 1, the collector 18 includes a belt 28 made of a conductive material and a drive roller 30 made of a conductive material that drives the belt 28. The collector 18 also serves as a conveying device that conveys the base sheet S in the horizontal direction (X-axis direction) by the belt 28 and carries it out of the housing 12. In order to enable the base sheet S to be carried out in the X-axis direction, a carry-out port 12a is formed in the housing 12.

  As an alternative, for example, when the base sheet S is long and is wound up by a reel (not shown) arranged on the upstream side in the moving direction of the base sheet S (the back direction in the drawing, the X axis direction), the collector 18, the belt 28 may be moved so as to synchronize or follow the substrate sheet S being moved by the driving roller 30. As a result, sliding between the moving base material sheet S and the belt 28 can be suppressed, and at the time of nanofiber production, electrostatically attracting each other by the charged nanofiber layer laminated on the base material sheet S The sliding resistance generated between the base material sheet S and the belt 28 of the collector 18 is reduced.

  In this embodiment, the base sheet S and the belt 28 of the collector 18 are in direct contact, but the base sheet S is transported in the horizontal direction (X-axis direction) by a transport belt (not shown), The belt 28 of the collector 18 may be opposed to the base material sheet S with a conveyance belt interposed. In this case, the belt 28 of the collector 18 moves in synchronization with or following the conveying belt, and the sliding resistance between the belt 28 and the conveying belt is reduced.

  A predetermined voltage (for example, 10 to 100 kV) is applied to the driving roller 30 when the nanofiber is manufactured. As a result, a predetermined potential difference (for example, 20 to 200 kV) is generated between the belt 28 and the nozzle 14 to cause an electrostatic explosion, and the nanofiber produced from the raw material liquid by the electrostatic explosion is formed on the base material sheet on the belt 28. Accumulate in S. The belt 28 may be a belt in which an insulator layer is formed on the surface of a metal belt, for example. The belt 28 is moved by the driving roller 30, and the nanofibers can be uniformly collected on the surface of the base sheet S on the belt 28.

  The wall constituting the housing 12, specifically, the wall defining the internal space 32 in which the nanofibers are made, is configured in a double structure. The wall portion of the double structure is composed of an inner wall 12b on the inner side (inner space 32 side) made of an insulator and an outer wall 12c on the outer side (outer side of the nanofiber manufacturing apparatus 10) made of an electric conductor. It is configured. The outer side wall 12c is grounded through, for example, a ground wire (not shown). Specifically, the entire housing 12 is constituted by the outer wall 12c (conductor), and an inner wall 12b (insulator) is provided on a part of the inner surface of the outer wall 12c.

  The inner wall 12b of the insulator is for suppressing discharge from the nozzle 14 of the electrospinning head 16 or the belt 28 of the collector 18 to the housing 12 to which a high voltage is applied. On the other hand, the outer wall 12c of the conductor is for preventing an electric shock by touching the inner wall 12b of the charged insulator (dielectric) during the operation of the nanofiber manufacturing apparatus 10.

  More specifically, during the operation of the nanofiber manufacturing apparatus 10, since a high voltage is used in the internal space 32, dielectric polarization occurs on the inner wall 12 b of the insulator. For example, positive charges are generated on the surface of the inner wall 12b on the inner space 32 side, and negative charges are generated on the opposite (outer) surface. When the outer side wall 12c does not exist, the operator may be electrocuted by the negative charge generated outside the inner side wall 12b. As a countermeasure, an outer wall 12c of a grounded conductor is provided outside the inner wall 12b of the insulator.

  The wall structure 20 that constitutes a part of the side wall of the housing 12 that supports the electrospinning head 16 is configured to be detachable from the main body 34 of the housing 12.

  FIG. 2 shows the wall structure 20 in a state of being detached (separated) from the main body 34 which is a part of the housing 12 other than the wall structure 20.

  As shown in FIG. 2, the wall structure 20 has a panel shape and is attached to the main body 34 while being positioned with respect to the main body 34 of the housing 12. Specifically, the wall structure 20 includes a positioning pin 36 that extends in the Y-axis direction and is inserted into a positioning hole 12d that is formed in the main body 34 of the housing 12 and opens in the Y-axis direction. When the positioning pin 36 of the wall structure 20 is inserted into the positioning hole 12d of the main body 34 of the housing 12, the positions of the wall structure 20 in the X-axis direction and the Z-axis direction with respect to the main body 34 are determined (see FIG. 1). .

  The wall structure 20 also includes a caster 38 that rolls on the floor surface FL. Thereby, the wall structure 20 can move along the floor surface FL. The caster 38 is preferably attached to the wall structure 20 via a spring member 40 such as a damper. Thereby, the vertical vibration (Z-axis direction) of the wall structure 20 generated when the caster 38 rolls on the floor surface FL can be damped by the damper such as the spring member 40. Further, it becomes easier to insert the positioning pin 36 of the wall structure 20 into the positioning hole 12 d of the main body 34 of the housing 12 than when the caster 38 is not attached to the wall structure 20 via the spring member 40.

  As shown in FIG. 2, the wall structure 20 is further supported by the main body 34 of the housing 12 via the electrospinning head 16 when being removed (separated) from the main body 34 of the housing 12. It is configured as follows.

  More specifically, the base frame 22 of the electrospinning head 16 supported by the wall structure 20 is located above the nozzle 14 as shown in FIG. 3, which is a perspective view of the electrospinning head 16. 12 is supported by a slide-type holding mechanism 42 disposed in the main body 34 so as to be slidable in the Y-axis direction. The base frame 22 of the electrospinning head 16 is supported by a sliding holding mechanism 42 at one end 22 a fixed to the wall structure 20 and the other end 22 b on the opposite side.

  The slide type holding mechanism 42 includes a rail member 42a and a slider member 42b that travels along the rail member 42a while holding the rail member 42a. The rail member 42a of the slide-type holding mechanism 42 is positioned above the nozzle 14 of the electrospinning head 16 in a posture that allows the slider member 42b to travel in the Y-axis direction, and the inner wall surface of the ceiling of the main body 34 of the housing 12 It is fixed to the side or the inner wall surface side of the main body 34 of the housing 12 adjacent to the wall structure 20. Thereby, it is suppressed that nanofibers are deposited on the slide portion of the slide type holding mechanism 42. On the other hand, the slider member 42 b is fixed to the end 22 b of the base frame 22 of the electrospinning head 16. By this slide type holding mechanism 42, the electrospinning head 16 is restricted to move only in the Y-axis direction. The slide type holding mechanism 42 includes a stopper member 42c that prevents the slider member 42b from falling off the rail member 42a.

  An end portion 22 a of the base frame 22 of the electrospinning head 16 that is restricted from moving only in the Y-axis direction by a slide type holding mechanism 42 disposed in the main body 34 of the housing 12 is fixed to the wall structure 20. Therefore, the wall structure 20 is configured to be detachable (separated) in the Y-axis direction with respect to the main body 34 of the housing 12. Further, the slider member 42b fixed to the end portion 22b of the base frame 22 of the electrospinning head 16 grips the rail member 42a attached to the main body 34 of the housing 12, so that it is detached from the main body 34 of the housing 12 and separated. Tilt of the wall structure 20 in the state of being made is prevented.

  When the wall structure 20 is removed (separated) from the main body 34 of the housing 12, the wall structure 20 is supported by the main body 34 of the housing 12 via the electrospinning head 16. 20 does not need to be made stand-alone, that is, highly rigid. For example, it is not necessary to provide a plurality of casters that can roll on the floor surface FL at the lower part of the wall structure 20 and to provide a cart unit that supports the wall structure 20 so as to be able to stand on its own. Further, the electrospinning head 16 is shared and supported by the main body 34 of the housing 12 provided with the slide type holding mechanism 42 to which the electrospinning head 16 is connected and the wall structure 20 connected to the electrospinning head 16. Compared with the case where the electrospinning head 16 is cantilevered by the wall structure 20 alone, the wall structure 20 configured to be detachable (separated) from the main body 34 of the housing 12 can be made thinner.

  When the wall structure 20 is detached (separated) from the main body 34 of the housing 12 by the wall structure 20 as described above, the electrospinning head 16 has an electrospinning head as shown in FIG. 16, one end 22 a of the base frame 22 is supported by the wall structure 20, while the other end 22 b is supported by the sliding holding mechanism 42 of the main body 34 of the housing 12. It can be located with the wall structure 20. This facilitates maintenance of the nozzle 14 of the electrospinning head 16 as compared to the case where the nozzle 14 is fixed in the internal space 32 of the housing 12.

  When the viscosity of the raw material liquid discharged from the nozzle 14 of the electrospinning head 16 is low, when the electrospinning head 16 is taken out of the main body 34 of the housing 12 as shown in FIG. There is a possibility that the raw material liquid in the nozzle hole 14a may drop on the floor surface FL. Alternatively, when the electrospinning head 16 is left outside for a long time in the state of being taken out of the main body 34 of the housing 12, the raw material liquid in the nozzle hole 14a is dried, and as a result, the nozzle hole 14a may be clogged. .

  As a countermeasure for this, as shown in FIG. 4, a nozzle cap 44 that caps the plurality of nozzle holes 14 a of the nozzle 14 may be attached to the nozzle 14.

  For example, the nozzle cap 44 is a member having a substantially “C” -shaped cross section as shown in FIG. 4, and is made of a material having resistance to the raw material liquid and having flexibility, for example, a polyethylene resin. . The nozzle cap 44 is attached to the nozzle 14 from below and covers the plurality of nozzle holes 14a, thereby suppressing drying and dripping of the raw material liquid in the nozzle holes 14a. The portion of the nozzle cap 44 that faces the plurality of nozzle holes 14a is provided with an elastic sheet that is resistant to the raw material liquid, for example, a silicon sheet 46 so as not to damage the opening edge of the nozzle holes 14a. Yes.

  As shown in FIG. 3, the voltage applied to the nozzle 14 of the electrospinning head 16 is supplied from a power source (not shown) provided on the main body 34 side of the housing 12 via the connector 48. The connector 48 includes a connector terminal 48 a provided on the main body 34 side of the housing 12 and a connector terminal 48 b provided on the base frame 22 that slides in the Y-axis direction on the electrospinning head 16 side. When the electrospinning head 16 is slid in the Y-axis direction and inserted into the main body 34, the connector terminals 48a and 48b are connected, and the nozzle of the electrospinning head 16 is supplied from a power source (not shown) on the main body 34 side of the housing 12. 14 is supplied with voltage.

  The housing main body side connector terminal 48a of the connector 48 is fixed to, for example, a rail member 42a of the slide type holding mechanism 42 fixed to the main body 34 of the housing 12. On the other hand, the electrospinning head 16 side connector terminal 48 b is fixed to the base frame 22 of the electrospinning head 16 via a bracket member 50. Further, as shown in FIG. 1, the connector terminals 48a and 48b are fixed so as to be electrically connected when the wall structure 20 is attached to the main body 34 of the housing 12. Next, when the wall structure 20 connected to the electrospinning head 16 is slid in the Y-axis direction by the sliding holding mechanism 42 and removed from the main body 34 of the housing 12, the connector terminals 48a and 48b are separated from each other, and the electrolytic structure The electrical connection between the nozzle 14 of the spinning head 16 and the power source on the main body 34 side of the housing 12 is released. As a result, as shown in FIG. 2, the nozzle 14 of the electrospinning head 16 that has been taken out of the housing 12 is safely maintained by removing (separating) the wall structure 20 from the main body 34 of the housing 12. be able to.

  Although not shown, the main body of the housing 12 is connected via a connector similar to the connector 48 to which the wall structure 20 is electrically connected to or disconnected from the main body 34 of the housing 12 or released. A power source 34 (not shown) is configured to be able to supply operating power to a pump 26 that supplies a raw material liquid for generating nanofibers to the electrospinning head 16 provided in the wall structure 20.

  According to the present embodiment, the wall structure 20 that constitutes a part of the side wall of the housing 12 and supports the one end 22 a of the electrospinning head 16 having the nozzle 14 is removed from the main body 34 of the housing 12. Since maintenance of the nozzle 14 of the electrospinning head 16 can be performed outside the housing 12, the maintenance workability and safety are higher than when the maintenance is performed inside the housing 12. Further, the wall structure 20 in a state where it is removed from the main body 34 of the housing 12 has a sliding holding structure in which the other end 22 b of the electrospinning head 16 provided on the wall structure 20 is provided on the main body 34 of the housing 12. Since it is supported by being held by the mechanism 42, it is not necessary to make the wall structure 20 itself self-supporting, that is, highly rigid.

  Although the present invention has been described with reference to the above-described embodiments, the present invention is not limited to the above-described embodiments.

  For example, the nozzle 14 of the electrospinning head 16 may be configured to be detachable from the electrospinning head 16.

  FIG. 5 shows the nozzle 114 of the electrospinning head 16 of the nanofiber manufacturing apparatus configured to be detachable according to another embodiment. The detachable nozzle 114 is configured to extend in the attaching / detaching direction (Y-axis direction) of the wall structure 20 and be suspended by the bar member 150 supported by the hanging member 24 of the electrospinning head 16. .

  Specifically, the nozzle 114 has a hook member 152 that can be positioned and attached to the bar member 150 extending in the Y-axis direction in the X-axis direction and the Z-axis direction. Accordingly, the nozzle 114 can be suspended from the bar member 150 without interfering with the wall structure 20. The bar member 150 of the nozzle 114 is fixed by, for example, a fixing member 154 such as a positioning pin or bolt.

  In the case of the above-described embodiment, as shown in FIGS. 1 to 3, the other end 22 b (the end opposite to the wall structure 20) of the base frame 22 of the electrospinning head 16 is slidably held. It is always supported by the main body 34 of the housing 12 via the mechanism 42. When the base sheet S has a large width (width in the Y-axis direction) and the electrospinning head 16 is elongated in the Y-axis direction accordingly, the base frame of the electrospinning head 16 as shown in FIGS. The other end 22b of 22 should always be supported by the main body 34 of the housing 12 via the sliding holding mechanism 42, but this is not a limitation when the electrospinning head 16 is short.

  For example, when the electrospinning head 16 extending in the Y-axis direction is short and the wall structure 20 alone can support the electrospinning head 16, only when the wall structure 20 is detached from the main body 34 of the housing 12. A holding mechanism for holding the other end 22 b of the electrospinning head 16 taken out of the housing 12 located on the opposite side of the wall structure 20 may be provided in the main body 34 of the housing 12. For example, a hook member may be provided on the other end 22 b of the electrospinning head 16, and a bar member for hooking the hook member may be provided on the main body 34 of the housing 12. In this case, the wall structure 20 cantileverly supports the electrospinning head 16 when attached to the main body 34 of the housing 12 so as to seal the housing 12 as a part of the wall of the housing 12. It will be. Further, when the electrospinning head 16 extending in the Y-axis direction is short and the electrospinning head 16 and the wall structure 20 can be slidably supported on the main body 34 side of the housing 12, the wall structure 20 itself is supported. The supporting caster 38 may not be provided.

  Further, as shown in FIG. 3, the holding mechanism for holding the other end 22b of the electrospinning head 16 is a slide type holding composed of a rail member 42a and a slider member 42b that travels along the rail member 42a. The mechanism 42 is not limited. For example, a groove formed on the main body 34 side of the housing 12 and extending in the attaching / detaching direction of the wall structure 20 is attached to the other end 22b of the electrospinning head 16 and positioned above the nozzle 14 of the electrospinning head 16. It may be a slide type holding mechanism in which the roller is rolled.

  The present invention is an apparatus or method for producing nanofibers by electrostatic explosion from a polymer solution in a housing, even if the apparatus or method is different from that of the above-described embodiment, for example, directly integrating nanofibers on a collector. If so, it is applicable.

DESCRIPTION OF SYMBOLS 10 Nanofiber manufacturing apparatus 12 Housing 14 Nozzle 16 Electrospinning head 20 Wall structure, side wall 22a One end (end)
22b The other end (end)
34 Main body 42 Holding mechanism (sliding type holding mechanism)

Claims (8)

A nanofiber production device for producing nanofibers from a raw material liquid by electrostatic explosion inside a housing,
A detachable wall structure that forms part of the side wall of the housing;
An electrospinning head having a nozzle for discharging the raw material liquid into the housing and having one end supported by the wall structure;
A holding mechanism that is provided on the main body of the housing, which is a part other than the wall structure, and holds the other end of the electrospinning head that is taken out of the housing when the wall structure is removed from the main body of the housing. Nanofiber manufacturing equipment.   The nanofiber manufacturing apparatus according to claim 1, wherein the holding mechanism is a slide type holding mechanism that holds the other end of the electrospinning head in a slidable direction of the wall structure. The wall structure has casters,
The nanofiber manufacturing apparatus according to claim 1 or 2, wherein the wall structure is attached to and detached from the main body of the housing while being grounded via a caster.   The nanofiber manufacturing apparatus according to claim 3, wherein the caster is provided on the wall structure via a spring member that can expand and contract in a vertical direction.   The nanofiber manufacturing apparatus according to any one of claims 1 to 4, wherein the nozzle is configured to be detachable from the electrospinning head.   The nanofiber manufacturing apparatus according to any one of claims 1 to 5, further comprising a cap member that closes a nozzle hole of the nozzle. A power source provided in the main body of the housing;
An electrospinning head side terminal provided in the electrospinning head and electrically connected to the nozzle;
A housing main body side terminal provided on the main body of the housing and electrically connected to the power source, and in electrical contact with the electrospinning head side terminal;
The electrospinning head side terminal and the housing main body side terminal are configured so that electrical contact is released when the wall structure is removed from the main body of the housing. The nanofiber manufacturing apparatus as described. A housing, a detachable wall structure that forms a part of the side wall of the housing, and an electrospinning head that includes a nozzle that discharges the raw material liquid into the housing and is supported at one end by the wall structure. A nanofiber manufacturing method using a nanofiber manufacturing apparatus,
Fabricate nanofibers by dielectric explosion from the raw material liquid discharged from the nozzle of the electrospinning head inside the housing,
Removing the wall structure from the main body of the housing, which is a part other than the wall structure,
A method for producing nanofibers, in which the other end of the electrospinning head taken out of the housing by removing the wall structure from the main body of the housing is held by a holding mechanism provided on the main body of the housing.

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