Winding device and winding method

Abstract

To provide a winding device capable of simultaneously satisfying contamination risk reduction of cross-over yarn and quality degradation risk reduction of a yarn-like body, and to provide a winding method therefor.SOLUTION: A winding method comprises the steps of: synchronously rotating a first winding frame body 10 and a second winding frame body 20 by starting to rotate in such a manner that the second winding frame body 20 in a stop state is synchronized with the number of revolutions of the first winding frame body 10 in a rotation state to make a first yarn-like body holding / cutting mechanism 110 of the first winding frame body 10 and a second yarn-like body holding / cutting mechanism 210 of the second winding frame body 20 produce a predetermined phase difference; moving the second winding frame body 20 along an axial direction of a rotational axis a1 with a winding frame body moving device so as to approach a first winding frame body 10 side; and starting to wind a yarn-like body S around the second winding frame body by moving the yarn-like body S onto a second winding frame body 20 side with a yarn-like body feeding / switching device, at a stage where the winding number of the yarn-like body S around the first winding frame body 10 reaches the predetermined winding number.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present disclosure relates to a winding device and a winding method, and more specifically, to a winding device used for continuously and automatically forming a filament continuously fed from a previous process into a bundle of filaments, and to a winding method using the winding device. In this disclosure, a filament refers to one or more solid fibers or one or more hollow fibers. [Background technology]

[0002] Conventional winding devices for winding filamentous materials include those disclosed in Japanese Patent No. 3623874 (Patent Document 1), Japanese Patent No. 4477866 (Patent Document 2), and Japanese Patent No. 4574725 (Patent Document 3).

[0003] The winding devices disclosed in Patent Documents 1 to 3 have reel bodies arranged in parallel on the same axis, and when winding of the filament onto one reel body is completed, the filament is moved to the other reel body, and winding of the filament onto the other reel body begins.

[0004] The reel body on which the winding of the filament has been completed stops rotating after the other reel body starts winding the filament. The bundle of filaments wound on the reel body is then wrapped in paper, film, or the like, and both ends are cut off. The bundle of filaments wrapped in film is then collected in sequence. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 3623874 [Patent Document 2] Patent No. 4477866 [Patent Document 3] Patent No. 4574725 Summary of the Invention [Problem to be solved by the invention]

[0006] In the winding devices disclosed in Patent Documents 2 and 3 above, in order to minimize the jump yarn that occurs when switching the winding of the thread-shaped body from one winding frame to the other winding frame, it is necessary to temporarily stop winding at the time of switching, and a mechanism called an accumulation mechanism (slack absorption mechanism) is used to absorb the slack in the yarn that occurs at that time.

[0007] When the winding of the filament onto one of the winding frames is completed, the filament is moved to the other winding frame, and winding of the filament onto the other winding frame begins. At this time, a crossover yarn is generated between the one winding frame and the other winding frame.

[0008] Since the crossover yarn is discarded, it is preferable that it is as short as possible. Furthermore, if the crossover yarn is long, there is a risk that the crossover yarn may easily get mixed into the bundle of filaments when the bundle of filaments wound on the reel is wrapped in paper, film, or the like and both ends are cut and collected. In particular, when the crossover yarn is cut at an angle as in Patent Document 1, it is considered that the crossover yarn is likely to get mixed into the bundle of filaments due to its positional relationship.

[0009] Thus, if an accumulation mechanism is not used, there is a high risk of crossover yarns being mixed into the bundle of filaments, whereas if an accumulation mechanism is used, there is a high risk of the filaments being degraded in quality, as the filaments are more likely to be twisted, scratched, or otherwise damaged due to the operation of the accumulation mechanism.

[0010] The present disclosure has an object to solve the above-mentioned problem, and to provide a winding device and a winding method that can simultaneously reduce the risk of contamination with jump yarns and the risk of deterioration in the quality of the filamentous body. [Means for solving the problem]

[0011] [1] A winding device according to the present disclosure includes a first winding frame and a second winding frame having the same configuration as the first winding frame, and the first winding frame rotates to wind a filament around the first winding frame, or the second winding frame rotates to wind the filament around the second winding frame, the first winding frame has a first rotation mechanism for rotating the first winding frame about a rotation axis, the second winding frame has a second rotation mechanism for rotating the second winding frame coaxially with the rotation axis, the first rotation mechanism and the second rotation mechanism have a winding frame moving device for relatively changing the distance between the first winding frame and the second winding frame in the axial direction of the rotation axis, and a winding frame moving device is disposed at a predetermined distance from the first winding frame and the second winding frame. At the position, a thread-shaped body supply switching device is provided which supplies the thread-shaped body to either the first winding frame or the second winding frame and switches the supply of the thread-shaped body to the first winding frame or the second winding frame, the first winding frame includes a first thread-shaped body holding and cutting mechanism which holds the thread-shaped body and cuts it, the second winding frame includes a second thread-shaped body holding and cutting mechanism which holds the thread-shaped body and cuts it, and the first rotation mechanism and the second rotation mechanism enable synchronization of the rotation of the first winding frame and the second winding frame by generating a predetermined phase difference from a position where the first thread-shaped body holding and cutting mechanism and the second thread-shaped body holding and cutting mechanism face each other.

[0012] [2]: A winding device as described in [1], wherein the first winding frame includes two or more first arms arranged radially, the second winding frame includes two or more second arms arranged radially, the first thread-shaped body holding and cutting mechanism is provided on a side of a selected one of the first arms facing the second winding frame, and the second thread-shaped body holding and cutting mechanism is provided on a side of a selected one of the second arms facing the first winding frame.

[0013] [3]: A winding device as described in [1] or [2], wherein the first filament holding and cutting mechanism and the second filament holding and cutting mechanism each have an induction area for receiving the filament, a block for fixing the filament in the induction area, and a cutting device for cutting the filament fixed in the induction area and by the block.

[0014] [4]: A winding method of the present disclosure is a method for winding the filament using a winding device described in any one of [1] to [3], the method including: starting rotation of the second winding frame, which is in a stopped state, so as to synchronize with the rotational speed of the first winding frame, which is in a rotating state, and synchronizing the rotation of the first winding frame and the second winding frame so that a predetermined phase difference is generated between the first winding frame and the second winding frame; moving the second winding frame along the axial direction of the rotation shaft by the winding frame moving device so as to bring the second winding frame closer to the first winding frame; and, when the number of turns of the filament around the first winding frame reaches a predetermined number, moving the filament towards the second winding frame by the filament supply switching device, and starting winding of the filament around the second winding frame.

[0015] [5]: The winding method according to [4], further comprising the steps of: synchronizing the rotation of the first winding frame and the second winding frame so that a predetermined phase difference is generated between the first thread-shaped body holding and cutting mechanism of the first winding frame and the second thread-shaped body holding and cutting mechanism of the second winding frame; moving the second winding frame along the axial direction of the rotation shaft by the winding frame moving device so as to bring the second winding frame closer to the first winding frame; and then, when the number of turns of the thread around the first winding frame reaches a predetermined number, moving the thread to the second winding frame by the thread supply switching device and starting winding of the thread around the second winding frame.

[0016] [6]: The winding method according to [4] or [5], further comprising a step of adjusting the rotational speed and phase difference of the first winding frame relative to the second winding frame by the first rotation mechanism while maintaining the rotational speed of the second winding frame by the second rotation mechanism so as to prevent a change in the length of the jump yarn generated between the first winding frame and the second winding frame, and moving the first winding frame in a direction away from the second winding frame by the winding frame moving device.

[0017] [7]: The winding method according to [6], further comprising the steps of holding a filament by the first filament holding and cutting mechanism and the second filament holding and cutting mechanism, and cutting the filament by the first filament holding and cutting mechanism and the second filament holding and cutting mechanism. Effect of the Invention

[0018] According to the present disclosure, a winding device and a winding method are provided that can simultaneously reduce the risk of contamination with a floating yarn and the risk of deterioration in the quality of a filamentous body. [Brief description of the drawings]

[0019] [Figure 1] FIG. 4 is a schematic diagram showing a winding process of a winding method using a winding device of a comparative example. [Diagram 2] 10 is a schematic diagram showing a switching process of a winding method using a winding device of a comparative example. FIG. [Diagram 3] FIG. 11 is a schematic diagram showing a crossover yarn cutting step of a winding method using a winding device of a comparative example. [Figure 4] FIG. 4 is a schematic diagram showing a first winding frame stopping step in a winding method using a winding device of a comparative example. [Diagram 5] FIG. 4 is a schematic diagram showing a wrapping step of a winding method using a winding device of a comparative example. [Figure 6] FIG. 1 is a first schematic diagram showing a schematic configuration of a winding device according to an embodiment. [Figure 7] 4 is a schematic diagram showing a reel body synchronous rotation process of a winding method using the winding device of the embodiment. FIG. [Figure 8] 4 is a schematic diagram showing a reel body approaching step of a winding method using the winding device of the embodiment. FIG. [Figure 9] 5 is a schematic diagram showing a traverse guide moving step of a winding method using the winding device of the embodiment. FIG. [Figure 10] 4 is a schematic diagram showing a step of starting winding onto a second winding frame in a winding method using the winding device of the embodiment. FIG. [Figure 11] 10A to 10C are schematic diagrams illustrating a crossover yarn cutting preparation step in a winding method using the winding device of the embodiment. [Figure 12] 5A to 5C are schematic diagrams illustrating a crossover yarn cutting step of a winding method using the winding device of the embodiment. [Figure 13] 2 is a perspective view showing a schematic configuration of a filamentous material holding and cutting mechanism provided in the winding device of the embodiment; FIG. [Figure 14] FIG. 4 is a first diagram showing the operation of the filament-shaped material holding and cutting mechanism of the embodiment. [Figure 15] FIG. 2 is a second diagram showing the operation of the filament-shaped material holding and cutting mechanism of the embodiment. [Figure 16] FIG. 3 is a third diagram showing the operation of the filament-shaped material holding and cutting mechanism of the embodiment. [Figure 17] FIG. 4 is a fourth diagram showing the operation of the filament-shaped material holding and cutting mechanism of the embodiment. [Figure 18] FIG. 5 is a fifth diagram showing the operation of the filament-shaped material holding and cutting mechanism of the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] The winding device and the winding method using the winding device according to each embodiment based on the present disclosure will be described below with reference to the drawings. In the embodiments described below, when numbers, amounts, etc. are mentioned, the scope of the present invention is not necessarily limited to the numbers, amounts, etc., unless otherwise specified. The same reference numbers are given to the same parts and corresponding parts, and duplicate descriptions may not be repeated. It is intended from the beginning that the configurations of the embodiments will be used in appropriate combinations.

[0021] In the following description, a case where two winding frames are provided for winding the filament S arranged on the same axis is described, but the number of winding frames is not limited to two, and the case where three or more winding frames are provided on the same axis is also included. In the following description, the filament S refers to one or more solid fibers or one or more hollow fibers.

[0022] [Comparative example: Winding method] A conventional method for winding a filamentous body will be described as a comparative example with reference to Figs. 1 to 5. Fig. 1 is a schematic diagram showing the winding process of the winding method using the winding device of the comparative example, Fig. 2 is a schematic diagram showing the switching process, Fig. 3 is a schematic diagram showing the crossover yarn cutting process, Fig. 4 is a schematic diagram showing the first winding frame stopping process, and Fig. 5 is a schematic diagram showing the wrapping process. Note that the comparative winding method below shows a case where no accumulation mechanism is used. In each figure, (A) is a schematic diagram of the winding frame in a plan view from above, and (B) is a schematic diagram of the first winding frame 10 as viewed from the side.

[0023] 1, in this winding device, the first winding frame 10 and the second winding frame 20 are both regular hexagonal polygonal shapes, and are arranged so that their vertices face each other. The first winding frame 10 and the second winding frame 20 are arranged in parallel on the same rotation axis a1, and the first winding frame 10 and the second winding frame 20 rotate in the direction indicated by the arrow R in the figure.

[0024] In the winding process shown in FIG. 1, a state in which a filament S is being wound around a first winding frame 10 is shown. The filament S is wound around the first winding frame 10 so as to connect each vertex of the first winding frame 10. A filament supply switching device 40 is provided outside the first winding frame 10. A traverse guide 40b is provided so as to be capable of reciprocating in the direction indicated by the arrow Y in the figure. The traverse guide 40b has a mechanism for switching the filament S, which is supplied from the outside, between the first winding frame 10 and the second winding frame 20.

[0025] 2, the first winding frame 10 reaches a predetermined number of turns, and winding of the filament S on the first winding frame 10 is completed. Thereafter, the filament supply switching device 40 moves the filament S supplied from the outside from the first winding frame 10 to the second winding frame 20, which is in an unwound state, and winding of the filament S on the second winding frame 20 begins. At this time, a jump yarn S1 is generated between the first winding frame 10 and the second winding frame 20.

[0026] 3 shows a state in which the crossover yarn S1 is cut by a cutting device 50 provided between the first winding frame 10 and the second winding frame 20. The crossover yarn S1 remains on both the first winding frame 10 and the second winding frame 20. The long remaining crossover yarn S1 remains in a position where it cannot be prevented from being mixed in when wrapping the bundle of filaments that will become the product.

[0027] 4 shows a state in which the rotation of the first winding body 10 is stopped. In this figure, the remaining floating yarn S1 is located at the bottom.

[0028] In the wrapping process shown in FIG. 5, an external wrapping device 300 moves to a position below the first winding frame 10, and a film F is wrapped around the bundle of filaments S located on each side between the vertices of the first winding frame 10. Then, both ends of the bundle of filaments S are cut off, and a bundle of filaments S wrapped with the film F is formed. The first winding frame 10 is rotated sequentially (60 degrees in the illustrated configuration), and the bundle of filaments S is taken out. At the vertex of the first winding frame 10, the bundle of filaments S is held by a clamp mechanism (not shown).

[0029] During wrapping of the bundle of filaments S, the crossover yarn S1 may become mixed in with the inside of the bundle of filaments S. In particular, when the crossover yarn S1 is long or positioned diagonally with respect to the bundle of filaments S, the crossover yarn S1 cannot be controlled and becomes mixed in with the inside of the bundle of filaments S. Products with crossover yarn S1 mixed in this way become defective products.

[0030] Hereinafter, a winding device and a winding method using the winding device according to an embodiment will be described.

[0031] (Embodiment: Winding device 1) The winding device 1 of the present embodiment will be described with reference to Fig. 6. Fig. 6 is a schematic diagram showing a general configuration of the winding device 1. In this disclosure, a filamentous body refers to one or more solid fibers, or one or more hollow fibers.

[0032] The winding device 1 includes a first winding frame body 10 and a second winding frame body 20 having the same configuration as the first winding frame body 10. In this embodiment, the first winding frame body 10 has six first arms 11a radially arranged at 60 degree intervals from a first main body portion 11. A first yarn receiver 11b is provided at the tip of each of the first arms 11a. The second winding frame body 20 has six second arms 21a radially arranged at 60 degree intervals from a second main body portion 21. A second yarn receiver 21b is provided at the tip of each of the second arms 21a.

[0033] The winding device 1 winds the filament S onto the first winding frame 10 while the first winding frame 10 rotates and holds the filament S in the first yarn receiver 11b so as to connect the apexes of the first arm 11a. Alternatively, the second winding frame 20 rotates and holds the filament S in the second yarn receiver 21b so as to connect the apexes of the second arm 21a, and winds the filament S onto the second winding frame 20. A method for winding the filament S by the winding device 1 will be described later.

[0034] The first winding frame 10 has a first rotation mechanism 12 that rotates the first winding frame 10 about the rotation axis a1. The first rotation mechanism 12 is held by a first frame F10. The second winding frame 20 has a second rotation mechanism 22 that rotates the second winding frame 20 coaxially with the rotation axis a1. The second rotation mechanism 22 is held by a second frame F20.

[0035] The first rotating mechanism 12 and the second rotating mechanism 22 have a winding frame moving device 30 that relatively moves the gap between the first winding frame 10 and the second winding frame 20 in the axial direction of the rotation axis a1.

[0036] The reel body moving device 30 may be a mechanism in which the first rotation mechanism 12 is movable in the axial direction of the rotation axis a1 and the second rotation mechanism 22 is fixed, a mechanism in which the second rotation mechanism 22 is movable in the axial direction of the rotation axis a1 and the first rotation mechanism 12 is fixed, or a mechanism in which both the first rotation mechanism 12 and the second rotation mechanism 22 are movable in the axial direction of the rotation axis a1.

[0037] At a position a predetermined distance away from the first winding frame 10 and the second winding frame 20, a filament supply switching device 40 is provided which supplies the filament S to either the first winding frame 10 or the second winding frame 20 and switches the supply of the filament S to the first winding frame 10 or the second winding frame 20. The filament supply switching device 40 includes a guide frame 40a and a traverse guide 40b which moves along the guide frame 40a. The traverse guide 40b is provided so as to be capable of reciprocating along the guide frame 40a in the direction of the arrow Y in the figure. The filament S is sent out from the traverse guide 40b in the direction of the arrow T in the figure.

[0038] At the apex of the selected first arm 11a of the first winding reel 10, in addition to the first yarn receiver 11b, a first thread-shaped body holding and cutting mechanism 110 capable of holding and cutting the thread S is provided. At the apex of the selected second arm 21a of the second winding reel 20, in addition to the second yarn receiver 21b, a second thread-shaped body holding and cutting mechanism 210 capable of holding and cutting the thread S is provided.

[0039] (Winding method) Next, a method for winding the filament S using the winding device 1 having the above-mentioned configuration will be described with reference to Figs. 7 to 12. Fig. 7 is a schematic diagram showing a first preparation step of the winding method using the winding device 1, Fig. 8 is a schematic diagram showing a second preparation step, Fig. 9 is a schematic diagram showing a traverse guide moving step, Fig. 10 is a schematic diagram showing a winding start step on the second winding frame, Fig. 11 is a schematic diagram showing a jump yarn cutting preparation step, and Fig. 12 is a schematic diagram showing a jump yarn cutting step. All of these figures are schematic diagrams of the first winding frame 10 and the second winding frame 20 as viewed from the direction of the arrow V in Fig. 6. The configurations of the first filament holding and cutting mechanism 110 and the second filament holding and cutting mechanism 210 will be described later.

[0040] (Reel body synchronous rotation process) The winding frame synchronous rotation process will be described with reference to Fig. 7. While the filament S is being wound around the first winding frame 10, wrapping of the bundle of filament S wound around the second winding frame 20 is completed, and the entire bundle of filament S is collected from the second winding frame 20, and preparation for the next process begins.

[0041] Specifically, the second winding frame 20, which is in a stopped state, starts to rotate so as to synchronize with the number of rotations of the first winding frame 10, which is in a rotating state. At this time, the first filament-like body holding and cutting mechanism 110 of the first winding frame 10 and the second filament-like body holding and cutting mechanism 210 of the second winding frame 20 are arranged so as to have a predetermined phase difference (positional deviation), thereby synchronizing the rotations of the first winding frame 10 and the second winding frame 20.

[0042] The purpose of providing a phase difference is to set an angle at which the filament S can easily engage with the second yarn receiver 21b provided on the second winding frame 20 when the winding of the filament S is switched from the first winding frame 10 to the second winding frame 20 using a traverse guide 40b described below. The phase difference between the first filament holding and cutting mechanism 110 and the second filament holding and cutting mechanism 210 is determined by factors such as the number of arms of the winding device 1, the length of the arms, and the winding speed, and a phase difference of about 5 degrees to 30 degrees is selected, for example.

[0043] (Reel body approach process) Next, the winding frame approaching step will be described with reference to Fig. 8. The winding frame moving device 30 moves the second winding frame 20 along the axial direction of the rotation shaft a1 so as to approach the first winding frame 10 (in the direction of the arrow D1 in the figure). This is to shorten as much as possible the length of the crossover yarn S1 (see Fig. 9) generated between the first winding frame 10 and the second winding frame 20 when the traverse guide 40b described later is switched from the first winding frame 10 to the second winding frame 20.

[0044] (Traverse guide moving process) Next, the traverse guide moving step will be described with reference to Fig. 9. When the number of windings of the filament S around the first winding frame 10 reaches a predetermined number, the traverse guide 40b of the filament supply switching device 40 is moved to the second winding frame 20 side.

[0045] (Start of winding process onto the second reel) Next, the process of starting winding the filament S around the second winding frame will be described with reference to Fig. 10. The filament S sent out from the traverse guide 40b engages with the second yarn receiver 21b on the second winding frame 20 side, and winding of the filament S around the second winding frame 20 begins. At this time, a phase difference is provided between the first winding frame 10 and the second winding frame 20, so that the angle at which the filament S easily engages with the second yarn receiver 21b provided on the second winding frame 20 is set, making it possible to suppress the occurrence of switching errors of the filament S. Furthermore, as winding around the second winding frame begins, a crossover yarn S1 is generated between the first winding frame 10 and the second winding frame 20.

[0046] (Transfer yarn cutting preparation process) Next, the jump yarn cutting preparation step will be described with reference to Fig. 11. While the rotation speed of the second winding frame 20 is maintained by the second rotation mechanism 22, the rotation speed of the first winding frame 10 and the phase difference relative to the second winding frame 20 are adjusted by the first rotation mechanism 12, and the first winding frame 10 is moved in a direction away from the second winding frame 20 (the direction of the arrow D2 in the figure) by the winding frame moving device 30, so that the length of the jump yarn S1 between the first winding frame 10 and the second winding frame 20 does not change.

[0047] When the first winding frame 10 moves, the movement, rotation speed and phase difference of the first winding frame 10 are adjusted so that the jump yarn S1 is pulled out in a direction perpendicular to the first winding frame 10 and the second winding frame 20 as much as possible.

[0048] This is to make it easier for the jump yarn S1 to be held and cut by the first thread holding and cutting mechanism 110 and the second thread holding and cutting mechanism 210 in the jump yarn cutting process described below, and to prevent the jump yarn S1 from becoming mixed in with the bundle of threads S by keeping the jump yarn S1 away from the bundle of threads S wound around the first winding frame 10.

[0049] (Cutting process of jump yarn) The jump yarn cutting step will be described with reference to Fig. 12. The first thread-shaped body holding and cutting mechanism 110 and the second thread-shaped body holding and cutting mechanism 210 hold the thread S. Then, the first thread-shaped body holding and cutting mechanism 110 and the second thread-shaped body holding and cutting mechanism 210 cut the thread S. As a result, the jump yarn S1 is cut off from the first winding reel 10 and the second winding reel 20.

[0050] Thereafter, the second winding body 20 continues to wind the filament S, the first winding body 10 stops rotating, and cutting of the bundle of filaments S starts from the first winding body 10. When cutting the bundle of filaments S, a wrapping device 300 is used to cut the bundle of filaments S, as shown in FIG.

[0051] Thereafter, the filament S is alternately wound around the first winding frame 10 and the second winding frame 20, and the bundle of filaments S is cut off in sequence using the wrapping device 300.

[0052] In this way, according to the winding method of the filament S using the winding device 1, the jump yarn S1 is shortened and pulled out in a direction approximately perpendicular to the first winding frame 10, thereby reducing the risk of the jump yarn S1 becoming mixed into the bundle of filaments S during wrapping.

[0053] (Thread retention and cutting mechanism) Next, the schematic configuration of the filament-like body holding and cutting mechanism will be described with reference to Fig. 13. Since the first filament-like body holding and cutting mechanism 110 provided on the first winding frame 10 and the second filament-like body holding and cutting mechanism 210 provided on the second winding frame 20 have the same configuration, the specific configuration of the second filament-like body holding and cutting mechanism 210 will be described here.

[0054] A recessed second yarn receiver 21b is provided on one side of the tip of the second arm 21a. The second yarn receiver 21b is provided on the opposite side to the side facing the first winding frame body 10. When viewed along the rotation direction of the second arm 21a (the direction of the arrow R in the figure), the tip of the second arm 21a has triangular recessed guide regions 230 on the upstream and downstream sides for receiving the filament S.

[0055] The induction region 230 is provided with a block 240 that is movable (in the direction of the arrow H in the figure) between a position that opens the induction region 230 and a position that closes the induction region 230 (a position that holds the filament S). The block 240 has a shape that corresponds to the induction region 230, which is recessed in a triangular shape.

[0056] On the other side of the tip portion of the second arm 21a (the side facing the first reel body 10), knives 220 as cutting devices are provided in two places so as to be slidable along the extension direction of the second arm 21a (the direction of the arrow X in the figure).

[0057] Next, with reference to Fig. 14 to Fig. 18, the fixing and cutting of the filament S using the second filament holding and cutting mechanism 210 having the above-mentioned configuration will be described. Fig. 14 to Fig. 18 are Fig. 1 to Fig. 5 showing the operation of the filament holding and cutting mechanism, with Fig. 14 corresponding to the "winding start step around the second winding frame" in Fig. 10, Fig. 15 corresponding to the "crossover yarn cutting preparation step" in Fig. 11, and Fig. 16 to Fig. 18 corresponding to the "crossover yarn cutting step" in Fig. 12.

[0058] 14, as shown in "Winding start process around the second winding frame" in Fig. 10, the filament S sent out from the traverse guide 40b engages with the second yarn receiver 21b on the second winding frame 20 side, and winding of the filament S around the second winding frame 20 begins. At this time, since a phase difference is provided between the first winding frame 10 and the second winding frame 20, the angle is set such that the filament S can easily engage with the second yarn receiver 21b provided on the second winding frame 20.

[0059] 15, as shown in the "crossover yarn cutting preparation process" of FIG. 11, the rotational speed and phase difference of the first winding frame 10 relative to the second winding frame 20 are adjusted while maintaining the rotation speed of the second winding frame 20 so that the length of the crossover yarn S1 between the first winding frame 10 and the second winding frame 20 does not change, and the first winding frame 10 is moved in a direction away from the second winding frame 20 (in the direction of arrow D2 in the figure).

[0060] When the first winding frame 10 moves, the movement, rotation speed and phase difference of the first winding frame 10 are adjusted so that the jump yarn S1 is pulled out in a direction perpendicular to the first winding frame 10 and the second winding frame 20 as much as possible.

[0061] The "crossover yarn cutting step" in Fig. 12 will be described with reference to Fig. 16 to Fig. 18. As shown in Fig. 16 and Fig. 17, the second filament holding and cutting mechanism 210 moves the block 240 in the H direction in the figure to fix the filament S located in the induction region 230 between the induction region 230 and the block 240.

[0062] 18, the knife 220 is slid in the direction of the arrow X in the figure to cut the jump yarn S1 from the filament S. As a result, the jump yarn S1 is cut off from the second arm 21a of the second winding reel body 20 while the filament S remains fixed to the second arm 21a.

[0063] On the second reel 20, the filament S continues to be wound, and on the first reel 10, a wrapping process for the bundle of filaments S is carried out using a wrapping device 300 shown in FIG.

[0064] As described above, the winding device 1 and the winding method using this winding device 1 in the present embodiment make it possible to shorten the floating yarn while reducing the risk of the floating yarn being mixed into the product.

[0065] In the above embodiment, the first winding frame 10 and the second winding frame 20 each have a hexagonal shape with six arms extending radially to wind the wire at six points, but the shape is not limited to a hexagonal winding frame. A two-point winding frame with two points may also be used. A circular winding frame may also be used.

[0066] The embodiments disclosed herein should be considered to be illustrative and not restrictive in all respects. The scope of the present invention is defined by the claims, not the above description, and is intended to include all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0067] 1 winding device, 10 first winding frame, 11 first main body, 11a first arm, 11b first yarn receiver, 12 first rotation mechanism, 12b second yarn receiver, 20 second winding frame, 21 second main body, 21a second arm, 22 second rotation mechanism, 30 winding frame moving device, 40 filament supply switching device, 40a guide frame, 40b traverse guide, 50 cutting device, 110 first filament holding and cutting mechanism, 210 second filament holding and cutting mechanism, 220 knife, 230 induction area, 240 block, 300 wrapping device.

Claims

1. A winding device including a first winding frame and a second winding frame having the same configuration as the first winding frame, wherein the first winding frame rotates to wind a filament onto the first winding frame, or the second winding frame rotates to wind the filament onto the second winding frame, the first reel body has a first rotation mechanism for rotating the first reel body about a rotation axis, the second winding body has a second rotating mechanism that rotates the second winding body coaxially with the rotation shaft, the first rotation mechanism and the second rotation mechanism each have a winding body moving device that relatively changes a distance between the first winding body and the second winding body in an axial direction of the rotation shaft, A filament supply switching device is provided at a position spaced a predetermined distance from the first winding frame and the second winding frame, and switches the supply of the filament to either the first winding frame or the second winding frame; the first reel body includes a first filament holding and cutting mechanism that holds the filament and cuts the filament, the second winding body includes a second filament holding and cutting mechanism that holds the filament and cuts the filament, the first rotation mechanism and the second rotation mechanism are configured to generate a predetermined phase difference from a position where the first filament-shaped body holding and cutting mechanism and the second filament-shaped body holding and cutting mechanism face each other, thereby enabling synchronization of rotations of the first winding body and the second winding body. Winding device.

2. The first reel body includes two or more first arms arranged radially, The second reel body includes two or more second arms arranged radially, the first filament holding and cutting mechanism is provided on a side of the selected one of the first arms facing the second winding body, the second filament holding and cutting mechanism is provided on a side of the selected one of the second arms facing the first reel body; The winding device according to claim 1.

3. The first filament holding and cutting mechanism and the second filament holding and cutting mechanism each include a guide region for receiving the filament; a block for fixing the filament in the induction region; a cutting device for cutting the filament fixed in the guide region and the block; The winding device of claim 2 .

4. A method for winding the filament using the winding device according to claim 1, comprising the steps of: a step of starting rotation of the second winding frame in a stopped state so as to synchronize with the number of rotations of the first winding frame in a rotating state, and synchronizing the rotations of the first winding frame and the second winding frame such that a predetermined phase difference occurs between the first filament-shaped body holding and cutting mechanism of the first winding frame and the second filament-shaped body holding and cutting mechanism of the second winding frame; a step of moving the filament toward the second winding frame by the filament supply switching device when the number of windings of the filament around the first winding frame reaches a predetermined number, and starting winding of the filament around the second winding frame; The winding method comprises:

5. After a step of synchronizing the rotations of the first winding frame and the second winding frame such that a predetermined phase difference occurs between the first winding frame and the second winding frame, a step of moving the second winding frame body in an axial direction of the rotation shaft by the winding frame moving device so as to approach the first winding frame side; Thereafter, when the number of windings of the filament around the first winding frame reaches a predetermined number, the filament supply switching device is used to move the filament to the second winding frame side, and winding of the filament around the second winding frame is started. The winding method according to claim 4.

6. the second rotating mechanism maintains the number of rotations of the second winding body, while adjusting the rotation speed and phase difference of the first winding body relative to the second winding body by the first rotating mechanism, and moving the first winding body in a direction away from the second winding body by the winding body moving device, so that the length of the jump yarn generated between the first winding body and the second winding body does not change. The winding method according to claim 4 or 5.

7. holding the filament S by the first filament holding and cutting mechanism and the second filament holding and cutting mechanism; cutting the filament by the first filament holding and cutting mechanism and the second filament holding and cutting mechanism. The winding method according to claim 6.

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