JP2019059591A - Tray for transporting bobbin - Google Patents

Abstract

To provide a tray for transporting a bobbin adapted to less deposit cotton fly on a mesh thereof.SOLUTION: A tray 3 is a component into which a real bobbin tube 5B wound with a yarn Y is fit and has a tray body 31 and a metallic mesh component 33. The tray body 31 has a receiving part 3b that is inserted into the real bobbin tube 5 and makes the real bobbin tube 5B stand, and is formed with an air-passage hole 35 penetrating from an upper end to a bottom face. The metallic mesh component 33 is fixed in the air-passage hole 35, allowing air to pass through but restricting a yarn Y from passing there. Metal wires making up a network of the mesh component 33 are in close contact one with another and no deviation occurs between the metal wires.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a bobbin transport tray on which a bobbin wound with yarn is mounted.

2. Description of the Related Art Conventionally, a bobbin transfer system is known which mounts a bobbin wound with a yarn on a tray and conveys the tray on which the bobbin is mounted to a winder unit.
There is also known a bobbin transfer system which has a spinning machine adjacent to an automatic winder and spins a yarn, and the spinning machine and the automatic winder are directly connected by a transport path.

  In the bobbin transport tray, air circulation holes penetrating in the upper and lower sides of the tray are formed (see, for example, Patent Document 1). With this structure, the yarn end can be unwound from the yarn layer on the suction air flow generated in the take-up tube and can be further sucked into the bobbin while the bobbin is inserted into the tray (protrusion) Operation).

Japanese Utility Model Publication No. 62-70186

  The tray 1 described in Patent Document 1 has a yarn passage blocking member 12. The yarn passage blocking member 12 is provided in the middle of the air flow hole 7 and is a member for allowing the air to flow but blocking the passage of the yarn. The yarn passage blocking member 12 prevents the yarn end from falling down through the tray 1 when performing the above-mentioned lead-out operation. When the end of the yarn is dropped to the outside of the bobbin 10, the end of the yarn contacts the conveyor during conveyance of the bobbin 10, and the end of the yarn is wound around a conveyance mechanism such as a pulley.

  The yarn passage blocking member is a grid-like wire mesh, a nylon mesh, or a plate provided with small holes. When the mesh is a grid-like wire mesh, entanglement to the mesh part of the mesh may occur. In this case, since only the woven wire is not fixed and moves, the adhesion of the cotton during use causes a deviation of the metal wires in which the warp and the weft are deviated in the mesh, and the wind is generated at that point. The increase in the amount of deposited cotton makes the circulation of air worse.

  An object of the present invention is to make it difficult for the cotton fiber to be deposited on the mesh of the bobbin transport tray.

  Below, a plurality of modes are explained as a means to solve a subject. These aspects can be arbitrarily combined as needed.

The bobbin conveying tray according to the first aspect of the present invention is a bobbin conveying tray on which a bobbin wound with yarn is mounted, and includes a tray main body and a metal mesh member.
The tray main body has a projection which is inserted into the bobbin and causes the bobbin to stand, and an air circulation hole is formed to penetrate from the upper end portion to the lower surface.
A metal mesh member is fixed in the air flow hole to allow air to pass but restrict the passage of yarn.
The metal wires forming the mesh of the mesh member are in close contact with each other, and the metal wires do not shift.
In this tray, since the metal wires do not shift in the mesh member, the fluff is hard to occur, and the fluff is hard to occur. As a result, the usage period of the mesh member can be extended.

The metal wires may be welded together by sintering.
In this tray, the adhesion strength between the metal wires of the mesh member is improved. Sintering means that the wire mesh is maintained at a temperature around the melting point of the metal for a certain period of time to form a crystal over the contact point between the contacts of each wire in the metallographic structure and to completely integrate it. It is possible to prevent the metal wires of the mesh from shifting with each other without using a connecting member other than the metal mesh.

The metal wires may be connected to each other by rolling. The rolling process (calendering process) means that the mesh wire is rolled so as to bite each other by rolling the mesh with a rolling mill or the like, and this deformation improves the bonding strength between the metals. ing. It is possible to prevent the metal wires of the mesh from shifting with each other without using a connecting member other than the metal mesh.

The tray body may have a recess for accommodating the mesh member.
The bobbin transport tray may further include a fixing bush that fixes the mesh member to the recess by being pressed into the recess.
In this tray, since the mesh member can be fixed to the recess only by pressing the fixing bush into the recess, the mesh member can be easily fixed and removed.

The bobbin transport tray may further include a positioning bush disposed on the back side of the mesh member in the recess.
In this tray, it is not necessary to increase the accuracy of the shape of the recess because the positioning bush can constitute the place where the mesh member is attached.

The mesh roughness of the mesh member may be in the range of 50 to 100 mesh.
In this tray, the passage of the yarn can be effectively prevented while allowing the passage of air.

The wire diameter of the mesh member may be in the range of 0.05 to 0.2 mm.
In this tray, the passage of the yarn can be effectively prevented while allowing the passage of air.

The opening ratio of the mesh member may be in the range of 30 to 60%.
In this tray, the passage of the yarn can be effectively prevented while allowing the passage of air.

  In the bobbin transport tray according to the present invention, it is difficult for the fiber to deposit on the mesh.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic plan view of an automatic winder system in which the seemingly grounded tray of the present invention is utilized. The figure which shows the whole structure of an automatic winder. The side of the tray with the bobbin attached. FIG. FIG. The side view which shows a mode that a thread end is prepared by the lead out apparatus. The elements on larger scale of a mesh member. The fragmentary sectional view of the tray which shows the installation operation of a mesh member. The fragmentary sectional view of the tray which shows the installation operation of a mesh member. The fragmentary sectional view of the tray which shows the installation operation of a mesh member. The fragmentary sectional view of the tray which shows the installation operation of a mesh member.

1. First Embodiment (1) Automatic Winder System An automatic winder system 101 according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. 1 is a schematic plan view of an automatic winder system in which the seemingly based tray of the present invention is used. FIG. 2 is a diagram showing an entire configuration of the automatic winder.
The automatic winder system 101 includes an automatic winder 102, a bobbin processing device 103, and a bobbin supply device 104. The automatic winder 102 is provided on the left side of the bobbin processing apparatus 103 in FIG. The bobbin processing device 103 is disposed between the bobbin supply device 104 and the automatic winder 102.

The automatic winder 102 has a plurality of winding units 105 as shown in FIGS. 1 and 2. The winding unit 105 is an apparatus for manufacturing a product package of spun yarn by winding the spun yarn wound around the real bobbin tube 5B (described later) onto another bobbin.
As shown in FIG. 1, the automatic winder 102 is provided with a supply path 106 for transporting the actual bobbin tube 5B to each winding unit 105. Further, in the automatic winder 102, a recovery path 107 for transporting the empty bobbin tube 5A discharged from each winding unit 105 is formed. The supply path 106 and the recovery path 107 are constituted by a belt conveyor or the like, and convey the bobbin tube 5 using the tray 3.

The bobbin processing device 103 is configured by removing an empty bobbin tube 5A (described later) discharged from the automatic winder 102 from the tray 3 and winding a spun yarn generated in a spinning machine (not shown) around the bobbin main body. A device for feeding the actual bobbin tube 5B toward the automatic winder 102 by mounting on the tray 3 an actual bobbin tube (a yarn supplying bobbin) 5B wound with a yarn spun by a spinning machine (not shown) It is.
The bobbin supply device 104 is a device for supplying the real bobbin tube 5B to the bobbin processing device 103.

(2) Tray and Bobbin The tray 3 and the bobbin tube 5 will be described with reference to FIGS. 3 to 5. FIG. 3 is a side view of the tray on which the bobbins are mounted. FIG. 4 is a perspective view of the tray. FIG. 5 is a cross-sectional view of the tray.
The tray 3 is a transport body used to transport the bobbin tube 5. As shown in FIGS. 3 and 4, the tray 3 has a disk-shaped base 3a and a mounting portion 3b as a cylindrical bobbin insertion portion projecting upward from the center of the upper surface. The tray 3 has an intermediate cylindrical portion 3c as a bobbin mounting portion between the base portion 3a and the mounting portion 3b. The intermediate cylindrical portion 3 c has a seating surface 67 on which the bobbin tube 5 is seated, and an outer circumferential surface 69. The tray 3 transports the bobbin tube 5 in a posture in which the bobbin tube 5 is inserted into the mounting portion 3 b.
The internal structure of the tray 3 will be described later.

The bobbin tube 5 is a cylindrical member for the spun yarn Y to be wound around the outer peripheral surface, and a through shaft hole 5a is formed (FIG. 6).
The bottom of the bobbin tube 5 is inserted into the mounting portion 3 b of the tray 3 to set the bobbin tube 5 to the tray 3 as shown in FIG. In the following description, a bobbin tube itself in which the spun yarn Y is not wound is referred to as an empty bobbin tube 5A, and a combination of the bobbin tube and the spun yarn Y wound thereon is referred to as an actual bobbin tube 5B.

(3) Bobbin Processing Device The bobbin processing device 103 will be described with reference to FIG.
The bobbin processing apparatus 103 has a tray conveyance line 108 for conveying the actual bobbin and the empty bobbin in a state of placing them on the tray 3 as a conveyance means of the actual bobbin and the empty bobbin. The tray transport line 108 is connected to the supply path 106 and the recovery path 107 of the automatic winder 102. The tray 3 on which the actual bobbin tube 5B is mounted is supplied from the bobbin processing device 103 to the winding unit 105 by the tray conveyance line 108 and the supply path 106. The tray 3 on which the empty bobbin tube 5A is mounted is returned from the winding unit 105 to the bobbin processing apparatus 103 by the collection passage 107 and the tray conveyance line 108.

The tray conveyance line 108 has a main conveyance line 121 and a return conveyance line 122.
The main transport line 121 transports the empty bobbin tube 5A discharged from the automatic winder 102, replaces the empty bobbin tube 5A with the real bobbin tube 5B on the way, and transports it toward the automatic winder 102. . The main transport line 121 is generally formed in a U-shape. Here, the start end of the main conveyance line 121 is connected to the end of the recovery passage 107, and the end of the main conveyance line 121 is connected to the start of the supply passage 106.
The bobbin removing device 11 and the real bobbin supplying device 13 are disposed along the main conveyance line 121.

The bobbin removing device 11 is a device for removing the empty bobbin tube 5A from the tray 3 and recovering it.
The actual bobbin supply device 13 is a device for attaching the actual bobbin tube 5B manufactured by the spinning machine to the tray 3 in a substantially upright state. A real bobbin tube 5B is supplied to the real bobbin supply device 13 from a bobbin supply device 104 such as a parts feeder.

  Although not shown, the actual bobbin supply device 13 includes a bobbin loading device, a bobbin distribution device, and a pair of bobbin chutes. The real bobbin supply device 13 can supply the empty bobbin tube 5A to the tray 3 simultaneously at two places by the bobbin distribution device and the pair of bobbin chutes. Each bobbin chute sets the bobbin tube 5 so as to be inserted into the mounting portion 3b of the tray 3. The bobbin chute is, for example, composed of divided pieces obtained by dividing a cone-shaped cylindrical body into two in the axial direction.

In the main transport line 121, a bunch unwinding device 15, a yarn end processing device 17, and a lead-out device 19 are disposed as a bobbin preparation system downstream of the actual bobbin supply device 13 in the transport direction. The bobbin preparation system performs the following operation on the actual bobbin tube 5B so that the yarn can be unwound smoothly by the automatic winder 102, and supplies the same to the automatic winder 102.
The bunch unwinding device 15 is a device for removing the bunch winding of the bottom bunch wound around the real bobbin tube 5B.

The yarn end processing device 17 is a device that cuts the backwind yarn wound on the surface of the yarn layer of the real bobbin tube 5B and removes the rear end yarn side thereof.
The lead-out device 19 dissociates the end of the yarn from the surface of the actual bobbin tube 5B and winds it out, and winds the end of the drawn yarn around the top of the bobbin tube 5 to open the shaft hole 5a opening (sky hole) of the bobbin tube 5 It is a device to insert. As a result, a state in which the yarn end can be smoothly pulled out from the actual bobbin tube 5B by the automatic winder 102 is obtained (described later).

The return conveyance line 122 is, for example, a path for reprocessing the actual bobbin tube 5B which has failed in the lead-out process. The return conveyance line 122 is a bypass path connecting the end and the start of the main conveyance line 121.
In the present embodiment, a set of the bunch unwinding device 15, the yarn end processing device 17, and the lead out device 19 is also disposed on the return conveyance line 122. These descriptions are omitted.

(4) Flow of Tray The flow of the tray 3 will be described below with reference to FIG.
When the empty tray 3 reaches the position directly below the bobbin chute (not shown) of the actual bobbin supply device 13, the actual bobbin tube 5B is placed on the empty tray 3 in a substantially upright state.

Next, the tray 3 is transported on the main transport line 121 toward the downstream side of the bunch unwinding device 15. In the bunch unwinding device 15, the bottom bunch formed on the actual bobbin tube 5B is removed.
Next, the actual bobbin tube 5B is transported to the yarn end processing device 17 on the main transport line 121. In the yarn end processing device 17, the backwind yarn wound around the surface of the yarn layer of the actual bobbin tube 5B is cut to form a tip side winding portion.

Next, the actual bobbin tube 5 </ b> B is transported to the lead-out device 19 on the main transport line 121. In the lead-out device 19, the tip end side winding portion is sucked upward, and thereafter, is inserted inside the cylinder of the actual bobbin tube 5B.
Next, the actual bobbin tube 5 </ b> B is transported further downstream to the main transport line 121 and supplied to the supply path 106 of the automatic winder 102. The actual bobbin tube 5 </ b> B is conveyed through the supply path 106 and supplied to any of the winding units 105.

In the winding unit 105, the yarn is unwound from the actual bobbin tube 5B, and the unwound yarn is wound on a package.
The tray 3 carrying the empty bobbin tube 5A with all the surrounding yarns unwound is discharged from the winding unit 105 and returned again to the main conveyance line 121 of the bobbin processing apparatus 103 through the recovery path 107.
In the main transport line 121, the bobbin removing device 11 removes the empty bobbin tube 5A placed on the tray 3.

(5) Feeding device (detailed description)
The lead-out device 19 will be described with reference to FIG. FIG. 6 is a side view showing how the yarn end is prepared by the lead-out device.
The lead-out device 19 includes a yarn suction pipe 91, a cutter 92, a yarn suction portion 93, and a yarn detection sensor 95, as shown in FIG.
The yarn suction tube 91 has a bellows portion which can be expanded and contracted in the vertical direction, and is arranged so as to be able to cover the tip portion of the actual bobbin tube 5B from the upper side by extension. The yarn suction pipe 91 is connected to the negative pressure supply device 99 through a pipe 97, and can suction the tip side winding portion. A cutter 92 capable of cutting the spun yarn Y is disposed at a connection portion between the yarn suction pipe 91 and the pipe 97. Further, a yarn detection sensor 95 is disposed in the pipe 97. By detecting the spun yarn Y, the yarn detection sensor 95 can detect whether capture of the spun yarn Y has succeeded.

  The yarn suction portion 93 is configured as a pipe-like member connected to the negative pressure supply device 99, and is opened upward at one end thereof to face the lower surface of the tray 3 supporting the actual bobbin tube 5B. A suction port 93a is formed. In addition, since the air flow holes 35 (described later) in the vertical direction are formed in the tray 3, suctioning air from the yarn suction portion 93 generates suction flow in the upper end portion of the axial hole 5a of the actual bobbin tube 5B. It can be done.

  When the real bobbin tube 5B is transported, the lead-out device 19 extends the bellows of the yarn suction tube 91 to cover the yarn winding portion of the real bobbin tube 5B and generates a suction air flow in the yarn suction tube 91. The tip end side winding portion of the actual bobbin tube 5B is aspirated to capture the yarn end.

  When it is detected by the yarn detection sensor 95 that the yarn end has been successfully captured, the lead-out device 19 causes the cutter 92 to operate to cut the spun yarn Y after the bellows of the yarn suction tube 91 is contracted. Then, a suction air flow is generated in the air circulation hole 35 of the tray 3 and the axial hole 5a of the actual bobbin tube 5B by the yarn suction portion 93 so that the yarn end is sucked from the upper end of the axial hole 5a of the actual bobbin tube 5B. Capture. Thus, the yarn end can be prepared to be inserted from the upper side into the inside of the actual bobbin tube 5B.

  Thereafter, the actual bobbin tube 5B is supplied for the winding operation in the automatic winder 102. Thereby, in the automatic winder 102, the compressed air is introduced from the hole on the root portion side of the actual bobbin tube 5B prepared by the lead-out device 19 to easily blow the yarn end in the actual bobbin tube 5B upward. The yarn end can be captured by an upper yarn catching portion (not shown), and can be wound and wound on a package by a yarn joining device. As a result, the winding operation of the spun yarn Y by the automatic winder 102 can be smoothly started.

(6) Internal Structure of Tray The internal structure of the tray 3 will be described with reference to FIG. The tray 3 is a member to which the actual bobbin tube 5B around which the spun yarn Y is wound is attached, and includes a tray main body 31 and a metal mesh member 33.
As described above, the tray main body 31 has the mounting portion 3b (an example of a protrusion) which is inserted into the actual bobbin tube 5B and causes the actual bobbin tube 5B to stand.
The tray main body 31 is formed with an air circulation hole 35 penetrating from the upper end portion to the lower surface. Specifically, the air circulation hole 35 passes through the base 3a and the mounting portion 3b.

The mesh member 33 is fixed in the air flow hole 35 to allow the passage of air but restrict the passage of the yarn. Specifically, the mesh member 33 is circular in plan view. In FIG. 7, the metal wires forming the mesh of the mesh member 33 are in close contact with each other, and the metal wires do not shift. FIG. 7 is a partially enlarged view of the mesh member.
Even if the yarn end moves downward through the air circulation hole 35 of the tray main body 31 when the yarn end which is pushed out by the meshing member 33 is inserted into the ceiling hole of the bobbin tube 5, the yarn end Does not penetrate the tray 3 and protrude downward.

  In the tray 3, since the metal wires do not shift in the mesh member 33, it is hard to cause fuss, so it is difficult for fuss to be deposited. As a result, the use period of the mesh member 33 can be extended.

  Specifically, the metal wires are mutually welded by sintering. Therefore, the adhesive strength of the metal wires of the mesh member 33 is improved.

  The tray body 31 has a recess 37 for accommodating the mesh member 33. Specifically, the air circulation hole 35 has a large diameter portion 35 a on the base 3 a side and a small diameter portion 35 b on the mounting portion 3 b side, and the large diameter portion 35 a is a recess 37. A stepped portion 35c is formed at the boundary between the large diameter portion 35a and the small diameter portion 35b.

The tray 3 has a fixing bush 39. The fixing bush 39 is a member which is pressed into the recess 37 and fixes the mesh member 33 to the recess 37. The fixing bush 39 is made of an elastically deformable material and has flat upper and lower surfaces. Specifically, the fixing bush 39 fixes the mesh member 33 supported by the stepped portion 35c to the stepped portion 35c.
Thus, since the mesh member 33 can be fixed to the recess 37 only by pressing the fixing bush 39 into the recess 37, it is easy to fix and remove the mesh member 33.

  The tray 3 has a positioning bush 41. The positioning bush 41 is disposed on the back side of the mesh member 33 in the recess 37. The fixing bush 39 is made of an elastically deformable material and has flat upper and lower surfaces. Specifically, the positioning bush 41 is disposed in contact with the stepped portion 35c, and realizes a flat surface for receiving the mesh member 33. As described above, since the location where the mesh member 33 is attached can be configured by the positioning bush 41, it is not necessary to increase the accuracy of the shape of the recess 37.

The mesh member 33 is made of, for example, stainless steel. However, the type of metal is not limited.
The mesh roughness of the mesh member 33 is in the range of 50 to 100 mesh.
The wire diameter of the mesh member 33 is in the range of 0.05 to 0.2 mm.
The aperture ratio of the mesh member 33 is in the range of 30 to 50%.
The tray 3 can effectively prevent the passage of the yarn while allowing the passage of air.

(7) Mounting Operation of Meshing Member The operation for mounting the meshing member 33 on the tray main body 31 will be described with reference to FIGS.
First, as shown in FIG. 8, the tray main body 31 is prepared.
Next, as shown in FIG. 9, the positioning bush 41 is mounted in the recess 37. Specifically, the positioning bush 41 is disposed in the step portion 35 c of the recess 37.

Next, as shown in FIG. 10, the mesh member 33 is placed on the positioning bush 41 in the recess 37. Specifically, the outer peripheral edge portion of the mesh member 33 is placed on the circumferential plane of the positioning bush 41.
Finally, as shown in FIG. 11, the fixing bush 39 is pressed into the recess 37 to fix the mesh member 33 in the recess 37. Specifically, the fixing bush 39 is disposed in the step portion 35 c of the recess 37. As a result, the fixing bush 39 sandwiches the outer peripheral edge portion of the mesh member 33 with the positioning bush 41.
The operation of removing the mesh member 33 is performed in the reverse order.

2. Features of the Embodiment The above embodiment can be described as follows.
The bobbin transport tray (for example, tray 3) is a bobbin transport tray (for example, tray 3) on which a bobbin (for example, actual bobbin tube 5B) on which a yarn (for example, spun yarn Y) is wound is mounted. The tray main body (for example, the tray main body 31) and the metal mesh member (for example, the metal mesh member 33).
The tray main body has a projection (for example, the mounting portion 3b) which is inserted into the bobbin and causes the bobbin to stand, and an air circulation hole (for example, air circulation hole 35) penetrating from the upper end to the lower surface is formed. .
A metal mesh member is fixed in the air flow hole to allow air to pass but restrict the passage of yarn.
The metal wires forming the mesh of the mesh member are in close contact with each other, and the metal wires do not shift.
In this tray, since the metal wires do not shift in the mesh member, the fluff is hard to occur, and the fluff is hard to occur. As a result, the usage period of the mesh member can be extended.

3. Other Embodiments Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the invention. In particular, the embodiments and modifications described herein may be arbitrarily combined as needed.

The position where the mesh member is fixed to the air circulation hole of the tray main body is not limited to the above embodiment. The mesh member may be disposed at the end of the tray or at the tray body.
The means for fixing the mesh member to the tray main body is not limited to the ring-shaped bush. Other means such as adhesion may be used.
The positioning bush may be omitted.
Instead of welding metal wires together by sintering, the metal wires are rolled by rolling (calendering) with a rolling mill or the like so that the crossing portions of the metal wires are deformed so as to bite each other. Good. This deformation improves the bonding strength between metals, and can prevent the metal wires of the mesh from shifting with each other without using a bonding member other than the metal mesh.

  The present invention is widely applied to bobbin transport trays.

3: tray 3a: base 3b: mounting portion 3c: intermediate column 5: bobbin tube 5A: empty bobbin tube 5B: real bobbin tube 11: bobbin removing device 13: real bobbin supplying device 15: bunch unwinding device 17: thread end Processing device 19: Ejecting device 31: Tray main body 33: Metal mesh member 35: Air circulation hole 35a: Large diameter portion 35b: Small diameter portion 35c: Stepped portion 37: Recess 39: Fixing bush 41: Positioning bush 67: Seating surface 69: Outer peripheral surface 91: Yarn suction pipe 92: Cutter 93: Yarn suction portion 93a: Suction port 95: Yarn detection sensor 97: Piping 99: Negative pressure supply device 101: Automatic winder system 102: Automatic winder 103: Bobbin processing device 104 : Bobbin supply device 105: Take-up unit 106: Supply path 107: Recovery path 108: Tray conveyance line 121: Main conveyance In 122: The return transport line Y: yarn

Claims (8)

A bobbin transport tray on which a bobbin wound with yarn is mounted,
A tray main body having a projection which is inserted into a bobbin and causes the bobbin to stand, and in which an air circulation hole is formed to penetrate from the upper end to the lower surface;
And a metal mesh member fixed in the air circulation hole to allow passage of air but restrict passage of the yarn.
The metal wires forming the mesh of the mesh member are in close contact with each other so that the metal wires do not shift.   The bobbin transport tray according to claim 1, wherein the metal wires are welded to each other by sintering.   The bobbin transport tray according to claim 1, wherein the metal wires are connected to each other by rolling. The tray body has a recess for receiving the mesh member,
The bobbin transport tray according to any one of claims 1 to 3, further comprising a fixing bush that fixes the mesh member to the recess by being pressed into the recess.   The bobbin transport tray according to claim 4, further comprising a positioning bush disposed in the recess and determining a fixing position of the mesh member and the fixing bush.   The bobbin transport tray according to any one of claims 1 to 5, wherein the mesh roughness of the mesh member is in the range of 50 to 100 mesh.   The bobbin transport tray according to any one of claims 1 to 6, wherein a wire diameter of the mesh member is in a range of 0.05 to 0.2 mm.   The bobbin transport tray according to any one of claims 1 to 7, wherein an opening ratio of the mesh member is in a range of 30 to 60%.

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