Winding device and winding method
Patent Information
- Authority / Receiving Office
- EP · EP
- Patent Type
- Applications
- Current Assignee / Owner
- TOYOBO CO LTD
- Filing Date
- 2024-03-22
- Publication Date
- 2026-07-08
AI Technical Summary
Conventional winding devices require temporary stopping of the winding process to switch reels, leading to the formation of linking filaments that can mix with the bundle of filaments, causing quality degradation or operational damage.
A winding device with synchronized reel rotation and phase difference, combined with a filament supply switching unit and holding/cutting mechanisms, minimizes linking filaments by adjusting reel positions and cutting them at a perpendicular angle.
Prevents linking filaments from mixing into the bundle, maintaining filament quality and reducing operational damage.
Smart Images
Figure IMGAF001_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure relates to a winding device and a winding method. More specifically, the present disclosure relates to a winding device configured to continuously and automatically wind a filament which is continuously fed from a preceding step into a bundle of filaments, and a winding method using the winding device. In the present disclosure, the filament refers to one or two or more solid fibers or one or two or more hollow fibers.BACKGROUND ART
[0002] Examples of a conventional winding device configured to wind a filament are disclosed in Japanese Patent No. 3623874 (PTL 1), Japanese Patent No. 4477866 (PTL 2), and Japanese Patent No. 4574725 (PTL 3).
[0003] In the winding devices disclosed in PTL 1 to PTL 3, the reels are arranged in parallel on the same axis, and when the winding of the filament on one reel is completed, the filament is transferred to the other reel to wind the filament on the second reel.
[0004] While the filament is being wound on the other reel, the one reel on which the winding of the filament is completed is stopped from rotating. Thereafter, the bundle of filaments wound on the one reel is wrapped with a piece of paper, a film or the like, and both ends thereof are cut off. Thereafter, the bundle of filaments wrapped with the film is sequentially collected.CITATION LISTPATENT LITERATURE
[0005] PTL 1: Japanese Patent No. 3623874 PTL 2: Japanese Patent No. 4477866 PTL 3: Japanese Patent No. 4574725 SUMMARY OF INVENTIONTECHNICAL PROBLEM
[0006] In the winding devices disclosed in PTL 2 and PTL 3, in order to minimize the length of a linking filament formed when switching the winding of the filament from one reel to the other reel, it is necessary to temporarily stop the winding at the switching, and a mechanism called an accumulation mechanism (looseness absorption mechanism) is used to absorb looseness of the filament generated during the temporarily stop.
[0007] After the winding of the filament on one reel is completed, the filament is transferred to the other reel, and thereby the filament is being wound on the other reel. At this time, a linking filament is formed between the one reel and the other reel.
[0008] Since the linking filament will be discarded, it is preferable that the linking filament is as short as possible. If the linking filament is long, the linking filament is likely to be mixed into the bundle of filaments when the bundle of filaments wound on the reel is wrapped with a piece of paper, a film, or the like and then both ends thereof are cut off for collection. In particular, if the linking filament is cut when the linking filament is oblique as described in PTL 1, it is considered that the linking filament is more likely to be mixed into the bundle of filaments due to their positional relationship.
[0009] As described above, when the accumulation mechanism is not employed, there is a high risk that the linking filament may be mixed into the bundle of filaments. However, when the accumulation mechanism is employed, there is a higher risk that the operation of the accumulation mechanism may cause twisting, scratching, or other damage to the filaments, which degrades the quality of the bundle of filaments.
[0010] The present disclosure has been made to solve the above-mentioned problems, and an object of the present disclosure is to provide a winding device and a winding method capable of preventing a linking filament from being mixed into a bundle of filaments and preventing deterioration in the quality of the bundle of filaments.SOLUTION TO PROBLEM
[0011] [1] A winding device according to the present disclosure includes a first reel and a second reel having the same structure as the first reel, wherein the winding device winds a filament on the first reel while rotating the first reel, or winds the filament on the second reel while rotating the second reel, the first reel includes a first rotation mechanism that rotates about a rotation axis, the second reel includes a second rotation mechanism that rotates coaxially with the rotation axis, the first rotation mechanism and the second rotation mechanism include a reel moving unit that relatively changes a distance between the first reel and the second reel in an axial direction of the rotation axis, the winding device includes a filament supply switching unit which is provided at a position away from the first reel and the second reel by a predetermined distance, and is configured to supply the filament to either the first reel or the second reel and switch the supply of the filament to the first reel or the second reel, the first reel includes a first filament holding / cutting mechanism configured to hold and cut the filament, the second reel includes a second filament holding / cutting mechanism configured to hold and cut the filament, the first rotation mechanism and the second rotation mechanism are configured to synchronize the rotation of the first reel and the rotation of the second reel so as to create a predetermined phase difference from a position where the first filament holding / cutting mechanism and the second filament holding / cutting mechanism face each other. [2] In the winding device according to [1], the first reel includes two or more first arms arranged radially, the second reel includes two or more second arms arranged radially, the first filament holding / cutting mechanism is provided on a first arm selected from the first arms at a position facing the second reel, and the second filament holding / cutting mechanism is provided on a second arm selected from the second arms at a position facing the first reel. [3] In the winding device according to [1] or [2], each of the first filament holding / cutting mechanism and the second filament holding / cutting mechanism includes a guiding region configured to receive the filament, a block configured to lock the filament in the guiding region, and a cutting unit configured to cut the filament locked in the guiding region by the block. [4] According to the present disclosure, a winding method of a filament using the winding device according to any one of [1] to [3] includes: a step of synchronizing the rotation of the first reel and the rotation of the second reel so as to cause the second reel in an idle state to rotate in synchronization with a rotation speed of the first reel in a rotating state and create a predetermined phase difference between the first filament holding / cutting mechanism of the first reel and the second filament holding / cutting mechanism of the second reel; and a step of transferring the filament to the second reel by the filament supply switching unit when the number of turns of the filament on the first reel reaches a predetermined number of turns so as to wind the filament on the second reel. [5] The winding method according to [4], wherein after the step of synchronizing the rotation of the first reel and the rotation of the second reel so as to create a predetermined phase difference between the first filament holding / cutting mechanism of the first reel and the second filament holding / cutting mechanism of the second reel, the winding method further includes: a step of moving the second reel by the reel moving unit toward the first reel in the axial direction of the rotation axis; and a step of transferring the filament to the second reel by the filament supply switching unit when the number of turns of the filament on the first reel reaches a predetermined number of turns so as to wind the filament on the second reel. [6] The winding method according to [4] or [5] further includes a step of adjusting a rotation speed and a phase difference of the first reel with respect to the second reel by the first rotation mechanism while maintaining a rotation speed of the second reel by the second rotation mechanism so as to prevent a length of a linking filament between the first reel and the second reel from changing, and moving the first reel in a direction away from the second reel by the reel moving unit. [7] The winding method according to [6] further includes a step of holding the filament by the first filament holding / cutting mechanism and the second filament holding / cutting mechanism; and a step of cutting the filament by the first filament holding / cutting mechanism and the second filament holding / cutting mechanism. ADVANTAGEOUS EFFECTS OF INVENTION
[0012] According to the present disclosure, there is provided a winding device and a winding method capable of preventing a linking filament from being mixed into a bundle of filaments and preventing deterioration in the quality of the bundle of filaments.BRIEF DESCRIPTION OF DRAWINGS
[0013] Fig. 1 is a schematic view illustrating a winding step of a winding method using a winding device according to a comparative example. Fig. 2 is a schematic view illustrating a switching step of the winding method using the winding device according to the comparative example. Fig. 3 is a schematic view illustrating a linking filament cutting step of the winding method using the winding device according to the comparative example. Fig. 4 is a schematic view illustrating a first reel stopping step of the winding method using the winding device according to the comparative example. Fig. 5 is a schematic view illustrating a wrapping step of the winding method using the winding device according to the comparative example. Fig. 6 is a first schematic diagram illustrating a schematic configuration of a winding device according to an embodiment. Fig. 7 is a schematic view illustrating a reel rotation synchronizing step of the winding method using the winding device according to the embodiment. Fig. 8 is a schematic view illustrating a reel moving step of the winding method using the winding device according to the embodiment. Fig. 9 is a schematic view illustrating a traverse guide moving step of the winding method using the winding device according to the embodiment. Fig. 10 is a schematic view illustrating a winding start step of a second reel of the winding method using the winding device according to the embodiment. Fig. 11 is a schematic view illustrating a linking filament cutting preparation step of the winding method using the winding device according to the embodiment. Fig. 12 is a schematic view illustrating a linking filament cutting step of the winding method using the winding device according to the embodiment. Fig. 13 is a perspective view illustrating a schematic configuration of a filament holding / cutting mechanism provided in the winding device according to the embodiment. Fig. 14 is a first view illustrating the operation of the filament holding / cutting mechanism according to the embodiment. Fig. 15 is a second view illustrating the operation of the filament holding / cutting mechanism according to the embodiment. Fig. 16 is a third view illustrating the operation of the filament holding / cutting mechanism according to the embodiment. Fig. 17 is a fourth view illustrating the operation of the filament holding / cutting mechanism according to the embodiment. Fig. 18 is a fifth view illustrating the operation of the filament holding / cutting mechanism according to the embodiment. DESCRIPTION OF EMBODIMENTS
[0014] Hereinafter, a winding device according to each embodiment of the present disclosure and a winding method using the winding device will be described with reference to the drawings. In the embodiments described below, when a reference is made to a number, an amount or the like, the scope of the present disclosure is not necessarily limited to the number, the amount or the like unless otherwise specified. The same components and corresponding components are denoted by the same reference numerals, and the description thereof may not be repeated. It should be noted that proper combinations of components described in each embodiment are originally intended.
[0015] In the following description, the number of reels which are arranged coaxially and configured to wind a filament S is two, but the number of reels in the present disclosure is not limited to two, and the number of reels may be three or more reels which are arranged coaxially. In the following description, the filament S refers to one or two or more solid fibers and one or two or more hollow fibers.[Comparative Example: Winding Method]
[0016] With reference to Figs. 1 to 5, a conventional winding method of a filament will be described as a comparative example. Fig. 1 is a schematic diagram illustrating a winding step of a winding method using a winding device according to a comparative example, Fig. 2 is a schematic diagram illustrating a switching step, Fig. 3 is a schematic diagram illustrating a linking filament cutting step, Fig. 4 is a schematic diagram illustrating a first reel stopping step, and Fig. 5 is a schematic diagram illustrating a wrapping step. In the following comparative winding method, an accumulation mechanism is not employed. In each drawing, (A) is a schematic top view of reels, and (B) is a schematic side view of a first reel 10.
[0017] With reference to Fig. 1, the winding device includes a first reel 10 and a second reel 20, both of which have a regular hexagonal shape and are arranged in such a manner that corresponding vertices face each other. The first reel 10 and the second reel 20 are arranged in parallel on the same rotation axis a1, and the first reel 10 and the second reel 20 rotate in a direction indicated by an arrow R in the drawing.
[0018] Fig. 1 illustrates a winding step in which the filament S is wound on the first reel 10. The filament S is wound on the reel so as to connect the vertices of the first reel 10. A filament supply switching unit 40 is provided outside the first reel 10. A traverse guide 40b is configured to reciprocate in a direction indicated by an arrow Y in the drawing. The traverse guide 40b includes a mechanism for switching the filament S supplied from the outside between the first reel 10 and the second reel 20.
[0019] In the switching step illustrated in Fig. 2, when the first reel 10 reaches a predetermined number of turns, the winding of the filament S on the first reel 10 is completed. Thereafter, the filament S supplied from the outside is transferred by the filament supply switching unit 40 from the first reel 10 to the second reel 20 which is blank, and the filament S is started to be wound on the second reel 20. At this time, a linking filament S1 is formed between the first reel 10 and the second reel 20.
[0020] Fig. 3 illustrates a linking filament cutting step in which the linking filament S1 is cut by a cutting unit 50 provided between the first reel 10 and the second reel 20. Thus, the linking filament S1 partially remains in both the first reel 10 and the second reel 20. If the remained linking filament S1 has a long length, it will be inevitably mixed into the bundle of filaments, which is thereafter wrapped as a product.
[0021] Fig. 4 illustrates a first reel stopping step in which the rotation of the first reel 10 is stopped. In this drawing, the remained linking filament S1 is located at a lower position.
[0022] Fig. 5 illustrates a wrapping step in which an external wrapping device 300 is moved to a position below the first reel 10 so as to wrap a film F on a bundle of filaments S located on each side between two vertices of the first reel 10. Thereafter, both ends of the bundle of filaments S located on each side are cut off, and thereby a bundle of filaments S wrapped with the film F is formed. The bundle of filaments S is taken out by sequentially rotating the first reel 10 (rotating the first reel every 60 degrees in the illustrated configuration). Note that a clamping mechanism (not shown) is provided at each vertex of the first reel 10 to hold the bundle of filaments S.
[0023] During the wrapping of the bundle of filaments S, the linking filament S1 may be wound into the bundle of filaments S. When the linking filament S1 is long, and especially when the linking filament S1 is oblique with respect to the bundle of filaments S, it is hard to control the linking filament S1, and thereby the linking filament S1 will be inevitably mixed into the bundle of filaments S. The product mixed with the linking filament S1 is a defect product.
[0024] Hereinafter, a winding device according to an embodiment and a winding method using the winding device will be described.(Embodiment: Winding Device 1)
[0025] A winding device 1 according to an embodiment of the present disclosure will be described with reference to Fig. 6. Fig. 6 is a schematic diagram illustrating a schematic configuration of the winding device 1. In the present disclosure, the filament refers to one or two or more solid fibers or one or two or more hollow fibers.
[0026] The winding device 1 includes a first reel 10 and a second reel 20 having the same structure as the first reel 10. In the present embodiment, the first reel 10 includes six first arms 11a radiating from a first main body 11 at a pitch of 60 degrees. A first filament receiver 11b is provided on a tip end of each of the first arms 11a. The second reel 20 includes six second arms 21a radiating from a second main body 21 at a pitch of 60 degrees. A second filament receiver 21b is provided on a tip end of each of the second arms 21a.
[0027] The winding device 1 winds the filament S on the first reel 10 by rotating the first reel 10, using the first filament receivers 11b to hold the filament S on the vertices of the first arms 11a. Alternatively, the winding device winds the filament S on the second reel 20 by rotating the second reel 20, using the second filament receivers 21b to hold the filament S on the vertices of the second arms 21a. The winding method of the filament S by the winding device 1 will be described later.
[0028] The first reel 10 includes a first rotation mechanism 12 that rotates about a rotation axis a1. The first rotation mechanism 12 is held by a first frame F10. The second reel 20 includes a second rotation mechanism 22 that rotates coaxially with the rotation axis a1. The second rotation mechanism 22 is held by a second frame F20.
[0029] The first rotation mechanism 12 and the second rotation mechanism 22 include a reel moving unit 30 that relatively moves a gap between the first reel 10 and the second reel 20 in the axial direction of the rotation axis a1.
[0030] The reel moving unit 30 may be a mechanism configured to move the first rotation mechanism 12 in the axial direction of the rotation axis a1 and lock the second rotation mechanism 22, a mechanism configured to move the second rotation mechanism 22 in the axial direction of the rotation axis a1 and lock the first rotation mechanism 12, or a mechanism configured to move both the first rotation mechanism 12 and the second rotation mechanism 22 in the axial direction of the rotation axis a1.
[0031] A filament supply switching unit 40 is provided at a position away from the first reel 10 and the second reel 20 by a predetermined distance, and is configured to supply the filament S to either the first reel 10 or the second reel 20 and switch the supply of the filament S to the first reel 10 or the second reel 20. The filament supply switching unit 40 includes a guide frame 40a and a traverse guide 40b that moves along the guide frame 40a. The traverse guide 40b is configured to reciprocate along the guide frame 40a in the direction indicated by an arrow Y in the drawing. The filament S is drawn out from the traverse guide 40b in the direction indicated by an arrow T in the drawing.
[0032] In addition to the first filament receiver 11b, a first filament holding / cutting mechanism 110 configured to hold and cut the filament S is provided at the vertex of a selected first arm 11a of the first reel 10. In addition to the second filament receiver 21b, a second filament holding / cutting mechanism 210 configured to hold and cut the filament S is provided at the vertex of a selected second arm 21a of the second reel 20.(Winding Method)
[0033] Next, a winding method of the filament S using the winding device 1 having the above-described configuration will be described with reference to Figs. 7 to 12. Fig. 7 is a schematic diagram illustrating a first preparation step of the winding method using the winding device 1, Fig. 8 is a schematic diagram illustrating a second preparation step, Fig. 9 is a schematic diagram illustrating a traverse guide moving step, Fig. 10 is a schematic diagram illustrating a winding start step of a second reel, Fig. 11 is a schematic diagram illustrating a linking filament cutting preparation step, and Fig. 12 is a schematic diagram illustrating a linking filament cutting step. Each of the drawings is a schematic view when the first reel 10 and the second reel 20 are viewed from the direction indicated by an arrow V in Fig. 6. The configuration of the first filament holding / cutting mechanism 110 and the configuration of the second filament holding / cutting mechanism 210 will be described later.(Reel Rotation Synchronizing Step)
[0034] A reel rotation synchronizing step will be described with reference to Fig. 7. While the filament S is being wound on the first reel 10, the bundle of filaments S wound on the second reel 20 is wrapped, and the bundle of filaments S is collected from the second reel 20, and the second reel is prepared for the next step.
[0035] Specifically, the second reel 20 in an idle state is rotated in synchronization with the rotation speed of the first reel 10 in a rotating state. During this time, the rotation of the first reel 10 and the rotation of the second reel 20 are synchronized in such a manner that a predetermined phase difference (position shift) is created between the first filament holding / cutting mechanism 110 of the first reel 10 and the second filament holding / cutting mechanism 210 of the second reel 20.
[0036] The purpose of creating a phase difference is to create an angle at which the filament S is easily received by the second filament receiver 21b provided in the second reel 20 when the filament S is switched from the first reel 10 to the second reel 20 by the traverse guide 40b to be described later. The phase difference between the first filament holding / cutting mechanism 110 and the second filament holding / cutting mechanism 210 may be determined by factors such as the number of arms of the winding device 1, the length of each arm, and the winding speed, and the phase difference may be about 5 degrees to 30 degrees, for example.(Reel Moving Step)
[0037] Next, a reel moving step will be described with reference to Fig. 8. The second reel 20 is moved toward the first reel 10 in the axial direction of the rotation axis a1 (in the direction indicated by an arrow D1 in the figure) by the reel moving unit 30. This is to minimize the length of the linking filament S1 (see Fig. 9) formed between the first reel 10 and the second reel 20 as short as possible when the traverse guide 40b is switched from the first reel 10 to the second reel 20, which will be described later.(Traverse Guide Moving Step)
[0038] Next, a traverse guide moving step will be described with reference to Fig. 9. When the number of turns of the filament S on the first reel 10 reaches a predetermined number of turns, the traverse guide 40b of the filament supply switching unit 40 is moved toward the second reel 20.(Winding Start Step of Second Reel)
[0039] Next, a winding start step of winding the filament S on the second reel will be described with reference to Fig. 10. The filament S drawn from the traverse guide 40b is received by the second filament receiver 21b provided in the second reel 20, and the filament S is started to be wound on the second reel 20. At this time, since a phase difference is created between the first reel 10 and the second reel 20, an angle is formed such that the filament S is easily received by the second filament receiver 21b provided in the second reel 20, which prevents the filament S from being switched by error. Thereafter, the filament is started to be wound on the second reel, and a linking filament S1 is formed between the first reel 10 and the second reel 20.(Linking Filament Cutting Preparation Step)
[0040] Next, a linking filament cutting preparation step will be described with reference to Fig. 11. While the rotation speed of the second reel 20 is maintained by the second rotation mechanism 22, the rotation speed and the phase difference of the first reel 10 with respect to the second reel 20 are adjusted by the first rotation mechanism 12 so as to prevent the length of the linking filament S1 between the first reel 10 and the second reel 20 from changing, and the first reel 10 is moved in a direction away from the second reel 20 (the direction indicated by an arrow D2 in the drawing) by the reel moving unit 30.
[0041] When moving the first reel 10, the movement, the rotation speed and the phase difference of the first reel 10 are adjusted so that the linking filament S1 is drawn out in a direction as perpendicular as possible to the first reel 10 and the second reel 20.
[0042] This operation is performed to facilitate the holding and cutting of the linking filament S1 by the first filament holding / cutting mechanism 110 and the second filament holding / cutting mechanism 210 in a linking filament cutting step to be described later, and to move the linking filament S1 away from the bundle of filaments S wound on the first reel 10 so as to prevent the linking filament S1 from being mixed into the bundle of filaments S.(Linking Filament Cutting Step)
[0043] The linking filament cutting step will be described with reference to Fig. 12. The filament S is held by the first filament holding / cutting mechanism 110 and the second filament holding / cutting mechanism 210. Thereafter, the filament S is cut by the first filament holding / cutting mechanism 110 and the second filament holding / cutting mechanism 210. As a result, the linking filament S1 is cut off from the first reel 10 and the second reel 20.
[0044] Thereafter, the filament S is continued to be wound on the second reel 20, the rotation of the first reel 10 is stopped, and the bundle of filaments S is cut out from the first reel 10. When cutting out the bundle of filaments S, as illustrated in Fig. 5, a wrapping device 300 is used to cut out the bundle of filaments S.
[0045] Thereafter, the filament S is alternately wound on the first reel 10 and the second reel 20, and the bundle of filaments S is sequentially cut out by the wrapping device 300.
[0046] As described above, according to the winding method of the filament S using the winding device 1, since the linking filament S1 is shortened and the linking filament S1 is drawn out in a direction substantially perpendicular to the first reel 10, it is possible to prevent the linking filament S1 from being mixed into the bundle of filaments S during the wrapping.(Filament Holding / Cutting Mechanism)
[0047] Next, a schematic configuration of the filament holding / cutting mechanism will be described with reference to Fig. 13. Since the first filament holding / cutting mechanism 110 provided in the first reel 10 and the second filament holding / cutting mechanism 210 provided in the second reel 20 have the same configuration, the configuration of the second filament holding / cutting mechanism 210 will be described in detail.
[0048] A second filament receiver 21b having a recess shape is provided on one surface of a tip end of the second arm 21a. The second filament receiver 21b is provided on one surface opposite to the surface facing the first reel 10. When viewed in the rotation direction of the second arm 21a (the direction indicated by an arrow R in the drawing), a guiding region 230 recessed in a triangular shape and configured to receive the filament S is provided on the upstream side and the downstream side of the tip end of the second arm 21a, respectively.
[0049] The guiding region 230 is provided with a block 240 configured to move (in the direction indicated by an arrow H in the drawing) between a position where the guiding region 230 is opened and a position where the guiding region 230 is closed (a position where the filament S is held). The block 240 has a shape corresponding to the guiding region 230 recessed in a triangular shape.
[0050] On the other surface (the surface facing the first reel 10) of the tip end of the second arm 21a, a cutter 220 is provided as a cutting unit at two locations and is configured to slide in the extending direction of the second arm 21a (the direction indicated by an arrow X in the drawing).
[0051] Next, the holding and cutting of the filament S using the second filament holding / cutting mechanism 210 having the above-described configuration will be described with reference to Figs. 14 to 18. Figs. 14 to 18 are first to fifth views illustrating the operation of the filament holding / cutting mechanism, wherein Fig. 14 corresponds to the "winding start step of the second reel" in Fig. 10, Fig. 15 corresponds to the "linking filament cutting preparation step" in Fig. 11, and Figs. 16 to 18 correspond to the "linking filament cutting step" in Fig. 12.
[0052] With reference to Fig. 14, as illustrated by the "winding start step of the second reel" in Fig. 10, the filament S drawn from the traverse guide 40b is received by the second filament receiver 21b provided in the second reel 20, and the filament S is started to be wound on the second reel 20. At this time, since a phase difference is created between the first reel 10 and the second reel 20, an angle is formed such that the filament S is easily received by the second filament receiver 21b provided in the second reel 20.
[0053] With reference to Fig. 15, as illustrated by the "linking filament cutting preparation step" in Fig. 11, the rotation speed and the phase difference of the first reel 10 with respect to the second reel 20 are adjusted while the rotation speed of the second reel 20 is maintained so as to prevent the length of the linking filament S1 between the first reel 10 and the second reel 20 from changing, and the first reel 10 is moved in a direction away from the second reel 20 (in the direction indicated by an arrow D2 in the drawing).
[0054] When moving the first reel 10, the movement, the rotation speed and the phase difference of the first reel 10 are adjusted so that the linking filament S1 is drawn out in a direction as perpendicular as possible to the first reel 10 and the second reel 20.
[0055] The "linking filament cutting step" of Fig. 12 will be described with reference to Figs. 16 to 18. As illustrated in Figs. 16 and 17, the second filament holding / cutting mechanism 210 is used to move the block 240 in the direction indicated by an arrow H in the drawing so as to hold the filament S located in the guiding region 230 between the guiding region 230 and the block 240.
[0056] Next, as illustrated in Fig. 18, the cutter 220 is slid in the direction indicated by an arrow X in the drawing to cut the linking filament S1 from the filament S. As a result, the linking filament S1 is cut away from the second arm 21a of the second reel 20 while the filament S is held by the second arm 21a.
[0057] While the filaments S is being wound on the second reel 20, the wrapping device 300 is used to wrap the bundle of filaments S on the first reel 10 as illustrated in Fig. 5.
[0058] As described above, according to the winding device 1 and the winding method using the winding device 1 of the present embodiment, it is possible to prevent the linking filament from being mixed into the product while shortening the linking filament.
[0059] In the embodiment described above, each of the first reel 10 and the second reel 20 is formed as a hexagonal reel which includes six arms extending radially and is configured to wind a filament at six points, but is not limited thereto. Each reel may be a two-point reel that winds a filament at two points. Each reel may be circular reel.
[0060] It should be understood that the embodiments disclosed herein are illustrative and non-restrictive in all respects. The scope of the present invention is defined by the terms of the claims rather than the description of the embodiments above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.REFERENCE SIGNS LIST
[0061] 1: winding device; 10: first reel; 11: first main body; 11a: first arm; 11b: first filament receiver; 12: first rotation mechanism; 12b: second filament receiver; 20: second reel; 21: second main body; 21a: second arm; 22: second rotation mechanism; 30: reel moving unit; 40: filament supply switching unit; 40a: guide frame; 40b: traverse guide; 50: cutting unit; 110: first filament holding / cutting mechanism; 210: second filament holding / cutting mechanism; 220: cutter; 230: guiding region; 240: block; 300: wrapping device.
Claims
1. A winding device comprising: a first reel; and a second reel having the same structure as the first reel, wherein the winding device winds a filament on the first reel while rotating the first reel, or winds the filament on the second reel while rotating the second reel, the first reel includes a first rotation mechanism that rotates about a rotation axis, the second reel includes a second rotation mechanism that rotates coaxially with the rotation axis, the first rotation mechanism and the second rotation mechanism include a reel moving unit that relatively changes a distance between the first reel and the second reel in an axial direction of the rotation axis, the winding device includes a filament supply switching unit which is provided at a position away from the first reel and the second reel by a predetermined distance, and is configured to supply the filament to either the first reel or the second reel and switch the supply of the filament to the first reel or the second reel, the first reel includes a first filament holding / cutting mechanism configured to hold and cut the filament, the second reel includes a second filament holding / cutting mechanism configured to hold and cut the filament, the first rotation mechanism and the second rotation mechanism are configured to synchronize the rotation of the first reel and the rotation of the second reel so as to create a predetermined phase difference from a position where the first filament holding / cutting mechanism and the second filament holding / cutting mechanism face each other.
2. The winding device according to claim 1, wherein the first reel includes two or more first arms arranged radially, the second reel includes two or more second arms arranged radially, the first filament holding / cutting mechanism is provided on a first arm selected from the first arms at a position facing the second reel, and the second filament holding / cutting mechanism is provided on a second arm selected from the second arms at a position facing the first reel.
3. The winding device according to claim 2, wherein each of the first filament holding / cutting mechanism and the second filament holding / cutting mechanism includes a guiding region configured to receive the filament, a block configured to lock the filament in the guiding region, and a cutting unit configured to cut the filament locked in the guiding region by the block.
4. A winding method of the filament using the winding device according to claim 1, the winding method comprising: a step of synchronizing the rotation of the first reel and the rotation of the second reel so as to cause the second reel in an idle state to rotate in synchronization with a rotation speed of the first reel in a rotating state and create a predetermined phase difference between the first filament holding / cutting mechanism of the first reel and the second filament holding / cutting mechanism of the second reel; and a step of transferring the filament to the second reel by the filament supply switching unit when the number of turns of the filament on the first reel reaches a predetermined number of turns so as to wind the filament on the second reel.
5. The winding method according to claim 4, wherein after the step of synchronizing the rotation of the first reel and the rotation of the second reel so as to create a predetermined phase difference between the first filament holding / cutting mechanism of the first reel and the second filament holding / cutting mechanism of the second reel, the winding method further comprising: a step of moving the second reel by the reel moving unit toward the first reel in the axial direction of the rotation axis; and a step of transferring the filament to the second reel by the filament supply switching unit when the number of turns of the filament on the first reel reaches a predetermined number of turns so as to wind the filament on the second reel.
6. The winding method according to claim 4 or claim 5, further comprising: a step of adjusting a rotation speed and a phase difference of the first reel with respect to the second reel by the first rotation mechanism while maintaining a rotation speed of the second reel by the second rotation mechanism so as to prevent a length of a linking filament between the first reel and the second reel from changing, and moving the first reel in a direction away from the second reel by the reel moving unit.
7. The winding method according to claim 6, further comprising: a step of holding the filament S by the first filament holding / cutting mechanism and the second filament holding / cutting mechanism; and a step of cutting the filament by the first filament holding / cutting mechanism and the second filament holding / cutting mechanism.