Winding device

Abstract

The present invention aims to provide a winding device that can prevent incorrect thread placement on the guide roller. [Solution] This is a winding device for winding yarn L onto a spindle 3 while traversing it using a traverse guide 40. The traverse guide 40 includes a guide support part 400 that moves back and forth along the axial direction of the spindle 3, an upstream guide roller 403a supported by the guide support part 400 in a manner that intersects the direction of travel of the yarn L, an intermediate guide roller 403b supported by the guide support part 400 in a manner that is parallel to the upstream guide roller 403a at a predetermined distance apart, and a downstream guide roller 403c supported by the guide support part 400 in a manner that is parallel to the intermediate guide roller 403b at a predetermined distance apart. The upstream guide roller 403a is provided with a yarn entry prevention member 405 on the left side of the front end of the device in a front view, which prevents the yarn from entering.

Description

Technical Field

[0001] The present invention relates to a winding device for winding a yarn onto a spindle while traversing the yarn with a traverse guide.

Background Art

[0002] Conventionally, a tape-like yarn having a flat cross-sectional shape in which a plurality of fibers are bundled and aggregated, such as carbon fiber, is known. A winding device for winding such a yarn onto a spindle while traversing it with a traverse guide is known (see, for example, Patent Document 1).

[0003] The traverse guide used in this winding device includes, for example, as shown in FIG. 9, a guide support portion 113 that reciprocates along the axial direction of the spindle at a position near the upper diagonal side of the spindle, and an upstream guide roller 141 supported by the guide support portion 113 in a manner intersecting the traveling direction of the yarn. An intermediate guide roller 142 supported by the guide support portion 113 in a manner parallel to the upstream guide roller 141 while being separated from the upstream guide roller 141 by a predetermined distance, and a downstream guide roller 143 supported by the guide support portion 113 in a manner parallel to the intermediate guide roller 142 while being separated from the intermediate guide roller 142 by a predetermined distance.

[0004] When threading these guide rollers 141 to 143, the yarn is wound around the right circumferential surface as viewed from the front of the upstream guide roller 141, passes between the upstream guide roller 141 and the intermediate guide roller 142, and then is wound around the left circumferential surface of the intermediate guide roller 142. Then, after the yarn passes between the intermediate guide roller 142 and the downstream guide roller 143, it is wound around the right circumferential surface of the downstream guide roller 143 and guided toward the bobbin attached to the spindle.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

[0006] However, inexperienced or rushed workers often made mistakes in how the threads were attached to the guide rollers. Specifically, as shown in Figure 9, the thread L was mistakenly attached to the left side of the upstream guide roller 141 instead of the right side, then passed between the upstream guide roller 141 and the intermediate guide roller 142 and attached to the right side of the intermediate guide roller 142, and then passed between the intermediate guide roller 142 and the downstream guide roller 143 and attached to the left side of the downstream guide roller 143 (or not attached at all). This resulted in the thread being attached in the exact opposite way to the correct method, causing problems with the winding of the thread.

[0007] The present invention has been made in view of the above-mentioned problems, and aims to provide a winding device that can prevent incorrect thread winding in the guide roller and efficiently manufacture high-quality thread packages. [Means for solving the problem]

[0008] To achieve the above objective, the present invention provides a winding device for winding yarn onto a spindle while traversing it with a traverse guide, wherein the traverse guide comprises a guide support portion that reciprocates along the axial direction of the spindle, an upstream guide roller supported by the guide support portion in a manner that intersects the direction of yarn travel, an intermediate guide roller supported by the guide support portion in a manner that is parallel to the upstream guide roller at a predetermined distance apart, and a downstream guide roller supported by the guide support portion in a manner that is parallel to the intermediate guide roller at a predetermined distance apart, wherein the upstream guide roller is provided with a yarn entry prevention member on the left side of the front end of the device in a front view to prevent yarn from entering.

[0009] According to this, when threading the yarn onto the upstream guide roller, the yarn will always be placed on the right-hand side of the upstream guide roller, thus preventing thread-like errors such as placing the yarn on the left-hand side.

[0010] Furthermore, the yarn entry prevention member may have a first inclined edge portion that extends inclined from the tip of the upstream guide roller to the left side of the tip of the intermediate guide roller in a front view. This allows the yarn that is wrapped around the right circumferential surface of the upstream guide roller to be guided along the first inclined edge portion of the yarn entry prevention member and smoothly wrapped around the left circumferential surface of the intermediate guide roller.

[0011] Furthermore, the yarn entry prevention member may have a second inclined edge portion that extends inclined from the left side of the intermediate guide roller in a front view to the right side of the tip of the downstream guide roller in a front view. This allows the yarn to be smoothly guided along the second inclined edge portion of the yarn entry prevention member and caught on the right circumferential surface of the downstream guide roller.

[0012] Furthermore, the yarn entry prevention member may include a first support plate extending from the guide support portion toward the front of the device, and a second support plate that bends from the first support plate and connects to the tip of the upstream guide roller. This makes it possible to completely prevent yarn from entering on the left side when viewed from the front of the front tip of the device. In addition, the upstream guide roller can be positioned stably.

[0013] Furthermore, the thread entry prevention member may have its second support plate connected to the tip of the downstream guide roller. This allows the downstream guide roller to be positioned stably. [Effects of the Invention]

[0014] According to the present invention, when the yarn is placed on the upstream guide roller, the yarn is always placed on the right-hand side of the upstream guide roller. This prevents yarn-like misplacements such as placing the yarn on the left-hand side of the upstream guide roller, making it possible to efficiently manufacture high-quality yarn packages. [Brief explanation of the drawing]

[0015] [Figure 1] This is a perspective view showing a winding device (with a traverse guide attached) according to an embodiment of the present invention. [Figure 2] This is a perspective view showing a winding device according to an embodiment of the present invention (without a traverse guide). [Figure 3] Figure 1 is an enlarged perspective view showing the traverse guide of the winding device. [Figure 4] Figure 1 shows a front view and a side view of the traverse guide of the winding device. [Figure 5] This is a side view showing the connecting member of the traverse guide of the winding device in Figure 1. [Figure 6] This block diagram shows the electrical configuration of the winding device in Figure 1. [Figure 7] Figure 1 is a front view showing the connection and disconnection processes of the traverse guide (connecting member) and guide rail (groove) of the winding device. [Figure 8] Figure 1 is a side view showing the connection and disconnection processes of the traverse guide (connecting member) and guide rail (groove) of the winding device. [Figure 9] This is a perspective view showing a conventional winding device. [Modes for carrying out the invention]

[0016] Next, an embodiment of the winding device according to the present invention (hereinafter referred to as "this device") will be described with reference to FIGS. 1 to 8. In this embodiment, as represented by carbon fiber, a tape-like yarn L having a flat cross-sectional shape in which a plurality of fibers are bundled and gathered is used as the yarn L. Also, the vertical direction in FIG. 4 is the vertical direction of this device, the left-right direction in FIG. 4(a) is the left-right direction of this device, and the left-right direction in FIG. 4(b) is the front-back direction of this device for the description.

[0017] As shown in FIG. 1, this device at least includes a base frame 1 on which each part is provided, a turret board 2 provided on the base frame 1, a pair of spindles 3 disposed on the turret board 2, and a traversing mechanism 4 provided on the left side of the turret board 2 in the base frame 1. As shown in FIG. 6, the rotation of the turret board 2, the axial rotation of the spindle 3, and the reciprocating movement of the traversing mechanism 4 are controlled by a control unit 5.

[0018] As shown in FIGS. 1 and 2, the spindle 3 is supported in a cantilever manner so as to protrude forward at symmetric positions on the concentric circles of the turret board 2, and is displaced between the winding position on the left side in the front view and the standby position on the right side in the front view by the rotation of the turret board 2.

[0019] Further, the spindle 3 is composed of a main body part 31 and a root part 32, and is connected via a drive motor (not shown) provided inside the base frame 1 and a predetermined rotation mechanism, and is configured to rotate axially at the winding position according to an instruction from the control unit 5. Thereby, the yarn L is sequentially wound around the bobbin mounted on the main body part 31 of the spindle 3, thereby forming a package of the yarn L having a predetermined diameter.

[0020] Also, a gripping part 33 for gripping the yarn L is provided on the root part 32 side of the spindle 3. This gripping part 33 is a gap between the main body part 31 and the root part 32 of the spindle 3. After the yarn L fits into the gap generated when the root part 32 moves backward at the time of switching the yarn L, the root part 32 returns forward to sandwich the yarn L, thereby gripping the yarn L.

[0021] As shown in Figures 1 and 2, the traverse mechanism 4 includes a traverse guide 40 that guides the yarn L toward the spindle 3, a guide rail 41 that extends along the axial direction of the spindle 3, and a guide bar 42 as a drive mechanism that moves the traverse guide 40 back and forth along the guide rail 41. The guide bar 42 causes the traverse guide 40 to reciprocate axially along the guide rail 41, thereby guiding the yarn L sent from outside the device toward the spindle 3 while traversing it. The configuration and function of the traverse mechanism 4 will be described in detail below.

[0022] As shown in Figure 3, the traverse guide 40 comprises a guide support section 400 that supports various guide rollers described later, a first guide group 401 located at the top of the guide support section 400, a second guide group 402 located in the middle of the guide support section 400, and a third guide group 403 located at the bottom of the guide support section 400. The yarn L travels while being guided in the order of the first guide group 401, the second guide group 402, and the third guide group 403. The third guide group 403 is located at the downstream position, closest to the spindle 3, more so than the other guide groups 401 and 402.

[0023] As shown in Figure 3, the guide support section 400 includes a support plate body 400a extending vertically perpendicular to the axial direction of the spindle 3, located diagonally to the upper left of the spindle 3; an upper support plate 400b provided on the upper part of the support plate body 400a to support the first guide group 401; an intermediate support plate 400c provided in the middle part of the support plate body 400a to support the second guide group 402; and a lower support plate 400d provided on the lower part of the support plate body 400a to support the third guide group 403. In this embodiment, the lower support plate 400d constitutes the lower part of the support plate body 400a.

[0024] As shown in Figure 3, the first guide group 401 consists of a pair of solid or hollow cylindrical guide rollers 401a and 401b that extend in a left-right direction perpendicular to the axial direction of the spindle 3. Both of these guide rollers 401a and 401b have their base ends rotatably supported by the upper support plate 400b and are arranged parallel to each other vertically at a predetermined distance along the direction of travel of the yarn L. As a result, as shown in Figure 4, the yarn L is placed over the front circumferential surface of the upper guide roller 401a, passes between the upper guide roller 401a and the lower guide roller 401b, and then placed over the rear circumferential surface of the lower guide roller 401b, thereby guiding the yarn L along a predetermined direction of travel while keeping its surface facing the axial direction (front-back direction) of the spindle 3.

[0025] As shown in Figure 3, the second guide group 402 consists of a pair of solid or hollow cylindrical guide rollers 402a and 402b that extend in a direction intersecting the axial direction of the spindle 3 at a 45-degree angle. Both of these guide rollers 402a and 402b have their base ends rotatably supported by the intermediate support plate 400c and are arranged parallel to each other vertically at a predetermined distance along the direction of travel of the yarn L. As a result, as shown in Figure 4, the yarn L is placed over the front circumferential surface of the upper guide roller 402a, passes between the upper guide roller 402a and the lower guide roller 402b, and then placed over the rear circumferential surface of the lower guide roller 402b, thereby guiding the yarn L along a predetermined direction of travel while its surface is twisted at a 45-degree angle.

[0026] As shown in Figure 3, the third guide group 403 consists of a set of three solid or hollow cylindrical guide rollers 03a, 402b, and 403c that extend parallel to the axial direction of the spindle 3. Each of these guide rollers 403a, 403b, and 403c has its base end rotatably supported by the lower support plate 400d and is arranged in parallel at a predetermined distance from each other along the direction of travel of the yarn L.

[0027] In this embodiment, in the third guide group 403, the upstream guide roller 403a is positioned above the spindle 3 and extends in the axial direction of the spindle 3. The intermediate guide roller 403b is positioned directly below the upstream guide roller 403a and extends in the axial direction of the spindle 3. The downstream guide roller 403c is positioned below the intermediate guide roller 403b and extends in the axial direction of the spindle 3. These guide rollers 403a, 403b, and 403c are all formed with a length in the range of 40 to 80 mm, a diameter in the range of 12 to 21 mm, and are arranged side by side at intervals of 15 mm to 30 mm.

[0028] Furthermore, in the third guide group 403, a yarn entry prevention member 405 is provided on the upstream guide roller 403a of the set of three guide rollers, preventing yarn from entering on the left side when viewed from the front at the front end of the device.

[0029] Specifically, the yarn entry prevention member 405 consists of a first support plate 406 extending forward from the guide support portion 400, and a second support plate 407 connected to the upstream guide roller 403a in a manner that bends to the right in a front view from the first support plate 406, so that the upstream guide roller 403a is supported in a double-supported state between the second support plate 407 and the lower support plate 400d. Therefore, as shown in Figure 4, when the yarn L from the second guide group 402 is placed on the upstream guide roller 403a of the third guide group 403, the yarn L will always be placed on the right side surface of the upstream guide roller 403a, thus preventing the yarn L from being placed on the left side surface of the upstream guide roller 403a.

[0030] Furthermore, the second support plate 407 of the yarn entry prevention member 405 has a first inclined edge portion 407a that extends from the tip of the upstream guide roller 403a to the left side of the tip of the intermediate guide roller 403b in a front view, and a second inclined edge portion 407b that extends around the left side of the tip of the intermediate guide roller 403b in a front view at a predetermined distance, and connects to the tip of the downstream guide roller 403c. As a result, as shown in Figure 4, the yarn L that is wrapped around the right side of the upstream guide roller 403a can be guided along the first inclined edge portion 407a of the second support plate 407 to the intermediate guide roller 403b and smoothly wrapped around the left side of the yarn, and can also be guided along the second inclined edge portion 407b of the second support plate 407 and smoothly wrapped around the right side of the downstream guide roller 403c.

[0031] Thus, as shown in Figure 4, the yarn L is placed over the right circumferential surface of the upstream guide roller 403a in the third guide group 403, passed between the upstream guide roller 403a and the intermediate guide roller 403b, then placed over the left circumferential surface of the intermediate guide roller 403b, passed between the intermediate guide roller 403b and the downstream guide roller 403c, and placed over the right circumferential surface of the downstream guide roller 403c, thereby guiding the yarn L toward the spindle 3 along a predetermined direction of travel of the yarn L while orienting its surface in a left-right direction perpendicular to the axial direction of the spindle 3.

[0032] As described above, with the configuration of the first guide group 401, the second guide group 402, and the third guide group 403, the yarn L is fed towards the second guide group 402 with its surface facing the front-to-back direction in the first guide group 401, as shown in Figure 4. After the surface is twisted by 45 degrees in the second guide group 402, it is twisted by another 45 degrees in the third guide group 403. As a result, the surface is twisted by 90 degrees while traveling from the first guide group 401 to the third guide group 403.

[0033] Furthermore, as shown in Figures 3 and 4, the traverse guide 40 has a connecting member 404 fixedly provided on the side of the guide support portion 400 on the guide rail 41 side for connecting to the guide rail 41.

[0034] Specifically, as shown in Figure 5, the connecting member 404 comprises a horizontally elongated rectangular parallelepiped-shaped body portion 404a, a horizontally elongated rectangular parallelepiped-shaped head portion 404b that is extended and retractable vertically from the body portion 404a via three shafts 404c, and a spring member 404d provided between the body portion 404a and the head portion 404b such that the central shaft 404c is inserted through it, allowing the head portion 404b to extend and retract vertically relative to the body portion 404a while resisting the biasing force of the spring member 404d.

[0035] Furthermore, the connecting member 404 has a recess 404e formed in the lower center of the body portion 404a, and as will be described later, when connecting the traverse guide 40 and the guide bar 42, the block member 422 of the guide bar 42 engages with it by fitting into it. The connecting member 404 is also provided with a groove 404g for the rod-shaped member 421 to fit into when the block member 422 of the guide bar 42 is fitted into the recess 404e.

[0036] Furthermore, the connecting member 404 has a first tapered surface 404f formed at the lower corner in the direction in which the guide bar 42 is located. As will be described later, when the traverse guide 40 and the guide bar 42 are connected, the first tapered surface 404f and the second tapered surface 422a of the block member 422 of the guide bar 42 come into contact at the same angle, as shown in Figure 8(b).

[0037] As shown in Figures 1 and 2, the guide rail 41 is formed in the shape of a rectangular parallelepiped extending along the axial direction of the spindle 3, and has a groove 411 extending in the axial direction on the side facing the spindle 3, which slidably supports the traverse guide 40.

[0038] As shown in Figure 7, the groove 411 has an upper groove 411a formed on the upper side with an opening downward, a lower groove 411b formed on the lower side with an opening upward, and a wall surface 411c erected on the left side between the upper groove 411a and the lower groove 411b. The connecting member 404 of the traverse guide 40 is fitted into the groove 411 of the guide rail 41 in a slidable manner between the upper groove 411a and the lower groove 411b. The method of attaching the connecting member 404 of the traverse guide 40 by fitting it into the groove 411 of the guide rail 41 will be described later.

[0039] As shown in Figures 2 and 5, the guide bar 42 consists of a rod-shaped member 421 that protrudes forward from the base frame 1 and extends along the lower groove portion 411b of the guide rail 41, and a block member 422 provided at the tip of the rod-shaped member 421. The rod-shaped member 421 reciprocates, protruding and retracting in the axial direction by a drive motor (not shown) in response to a command from the control unit 5. The block member 422 engages with the traverse guide 40 by fitting into a recess 404e of the connecting member 404 of the traverse guide 40. Therefore, when the rod-shaped member 421 reciprocates in the axial direction, the connecting member 404 engaged with the block member 422 also reciprocates in the axial direction, and consequently the traverse guide 40 reciprocates along the axial direction of the spindle 3.

[0040] Furthermore, the guide bar 42 has a second tapered surface 422a formed at the upper corner in the direction where the connecting member 404 of the traverse guide 40 is located (towards the tip of the block member 422). As will be described later, when the traverse guide 40 and the guide bar 42 are connected, the second tapered surface 422a and the first tapered surface 404f of the connecting member 404 come into contact at the same angle, as shown in Figure 8(b).

[0041] Next, the method for installing the traverse guide 40 when replacing it in this device will be explained with reference to Figures 7 and 8.

[0042] First, as shown in Figure 7(a), the connecting member 404 of the traverse guide 40 is compressed by pressing the head 404b against the biasing force of the spring member 404d, and then the connecting member 404 of the traverse guide 40 is moved to a position near the groove 411 of the guide rail 41.

[0043] Then, as shown in Figure 7(b), the connecting member 404 of the traverse guide 40 is brought into contact with the wall surface 411c of the groove 411 of the guide rail 41 while in a retracted state.

[0044] Then, as shown in Figure 7(c), when the pressure of the head 404b against the body 404a is released at the connecting portion of the traverse guide 40, and the connecting member 404 is extended again by the biasing force of the spring member 404d, the head 404b of the connecting member 404 fits into the upper groove 411a of the guide rail 41, and the body 404a of the connecting member 404 fits into the lower groove 411b of the guide rail 41, thereby enabling the connecting member 404 to be stably connected to the groove 411 of the guide rail 41.

[0045] The method of attaching the traverse guide 40 to the guide rail 41 is not limited to the method described above. For example, as shown in Figure 8(e), the traverse guide 40 may be connected to the guide rail 41 by first fitting the head 404b of the connecting member 404 of the traverse guide 40 into the upper groove 411a of the guide rail 41, then pushing the body 404a of the connecting member 404 upward against the biasing force of the spring member 404d to contract it and bring it into contact with the wall surface 411c of the groove 411 of the guide rail 41, and then extending the body 404a of the connecting member 404 again due to the biasing force of the spring member 404d and fitting it into the lower groove 411b of the guide rail 41.

[0046] Next, as shown in Figure 8(a), when the connecting member 404 of the traverse guide 40 is fitted into the groove 411 of the guide rail 41, and the connecting member 404 of the traverse guide 40 is slid axially toward the block member 422 of the guide bar 42, the connecting member 404 begins to ride up onto the block member 422, as shown in Figure 8(b).

[0047] Then, when the connecting member 404 of the traverse guide 40 is further slid axially toward the block member 422 of the guide bar 42, the connecting member 404 rides up completely on the block member 422 along the tapered surface 422a, as shown in Figure 8(c).

[0048] Then, when the connecting member 404 of the traverse guide 40 is further slid axially toward the block member 422 of the guide bar 42, as shown in Figure 8(d), the block member 422 engages with the recess 404e of the connecting member 404 by dropping into it, thus allowing the traverse guide 40 to be fixedly connected to the guide bar 42. In particular, in this embodiment, a first tapered surface 404f is formed on the connecting member 404 of the traverse guide 40, and a second tapered surface 422a is formed on the block member 422 of the guide bar 42. Since the first tapered surface 404f of the connecting member 404 and the second tapered surface 422a of the block member 422 abut each other at the same angle, the connecting member 404 can easily ride up onto the block member 422, allowing the traverse guide 40 and the guide bar 42 to be connected with little force.

[0049] Thus, the traverse guide 40 is attached by being slidably connected to the groove 411 of the guide rail 41 via a connecting member 404, and by being connected to the guide bar 42 in a manner that allows it to reciprocate. As a result, when the guide bar 42 reciprocates along the axial direction of the guide rail 41, the traverse guide 40 reciprocates along the groove 411 of the guide rail 41, thereby guiding the yarn L sent from outside the device while traversing along the axial direction of the spindle 3.

[0050] Next, the method for removing the traverse guide 40 in this device when replacing it will be explained with reference to Figures 7 and 8.

[0051] First, as shown in Figure 7(c), with the connecting member 404 of the traverse guide 40 fitted into the groove 411 of the guide rail 41, pressing the head 404b and / or body 404a of the connecting member 404 against the biasing force of the spring member 404d causes the connecting member 404 to contract, as shown in Figure 7(b). This partially releases the connection with the guide rail 41 and also releases the connection with the guide bar 42.

[0052] Then, as shown in Figure 7(a), when the connecting member 404 of the traverse guide 40 is pulled out of the groove 411 of the guide rail 41 while it is still in the contracted state, the connection with the guide rail 41 is completely released and it is removed.

[0053] The method for removing the traverse guide 40 from the guide rail 41 is not limited to the method described above. For example, as shown in Figure 8(e), the traverse guide 40 may be removed from the guide rail 41 and guide bar 42 by, with the head 404b of the connecting member 404 of the traverse guide 40 fitted into the upper groove 411a of the guide rail 41, pushing the body 404a of the connecting member 404 upward against the biasing force of the spring member 404d to contract it, pulling it outwards from the lower groove 411b of the guide rail 41, and then moving the connecting member 404 diagonally downward to pull the head 404b of the connecting member 404 outwards from the upper groove 411a of the guide rail 41.

[0054] In this embodiment, the traverse guide 40 is composed of a first guide group 401, a second guide group 402, and a third guide group 403 to guide the yarn L such as carbon fiber, as described above. However, the guide groups may have other configurations depending on the type and fiber density of the yarn L.

[0055] Furthermore, although the guide rail 41 is configured as a groove 411 consisting of an upper groove 411a and a lower groove 411b, a groove with other configurations is also acceptable as long as the connecting member 404 of the traverse guide 40 can be attached and detached from it.

[0056] Furthermore, although a guide bar 42 consisting of a rod-shaped member 421 and a block member 422 was used as the drive mechanism, other drive mechanisms such as linear devices may also be used, as long as they can be connected to the connecting member 404 of the traverse guide 40.

[0057] Furthermore, although the connecting member 404 of the traverse guide 40 is composed of a body portion 404a, a head portion 404b, a shaft 404c, and a spring member 404d, other configurations are also acceptable as long as they can extend and contract in the vertical direction.

[0058] Furthermore, the yarn entry prevention member 405 is not limited to the shape described above, and may have any other shape as long as it can prevent the yarn L from entering on the left side of the guide roller 403a upstream of the third guide group 403 when viewed from the front.

[0059] Although embodiments of the present invention have been described above with reference to the drawings, the present invention is not limited to the illustrated embodiments. Various modifications and variations can be made to the illustrated embodiments within the same scope as the present invention, or within an equivalent scope. [Explanation of Symbols]

[0060] 1...Base frame 2… Turret disc 3... Spindle 31...Main body 32... Root part 33...Gripping part 4…Traverse mechanism 40...Traverse Guide 400... Guide support section 400a...Support plate body 400b…Top support plate 400c…Intermediate support plate 400d... Lower support plate 401...First group of guides 401a, 401b... Guide rollers 402...Second group of guides 402a, 402b... Guide rollers 403...The third group of guides 403a, 403b, 403c... Guide rollers 404…Connecting member 404a... Fuselage 404b…Head 404c...shaft 404d... Spring component 404e…recess 404f...First tapered surface 404g…Groove 405... Yarn entry prevention member 406...First support plate 407...Second support plate 407a...First sloping edge 407b...Second sloping edge 41… Guide rail 411… Groove 411a...Upper groove part 411b...Lower side ditch section 411c... Wall surface 42... Guide bar 421... Rod-shaped member 422… Block member 422a...Second tapered surface 5…Control Unit

Claims

1. A winding device for winding yarn onto a spindle while traversing it using a traverse guide, The aforementioned traverse guide is A guide support that reciprocates along the axial direction of the spindle, An upstream guide roller supported by the guide support in a manner that intersects the direction of travel of the thread, An intermediate guide roller supported by the guide support portion is arranged parallel to the upstream guide roller at a predetermined distance, The system comprises a downstream guide roller supported by the guide support portion, which is arranged parallel to the intermediate guide roller at a predetermined distance apart, The winding device is characterized in that the upstream guide roller is provided with a yarn entry prevention member on the left side of the front end of the device, as viewed from the front, which prevents yarn from entering.

2. The yarn winding device according to claim 1, wherein the yarn entry prevention member has a first inclined edge portion that extends inclined from the tip of the upstream guide roller to the left side of the tip of the intermediate guide roller in a front view.

3. The yarn winding device according to claim 2, wherein the yarn entry prevention member has a second inclined edge portion that extends inclined from the left side of the intermediate guide roller in a front view to the right side of the tip of the downstream guide roller in a front view.

4. The yarn winding device according to claim 1, wherein the yarn entry prevention member comprises a first support plate extending forward from the guide support portion and a second support plate bending from the first support plate and connected to the tip of the upstream guide roller.

5. The yarn winding device according to claim 4, wherein the yarn entry prevention member is connected to the tip of the downstream guide roller, the second support plate.

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