WO2021065389A1

WO2021065389A1 - Thread-feeding part, braiding machine carrier provided with thread-feeding part, and braiding machine

Info

Publication number: WO2021065389A1
Application number: PCT/JP2020/034052
Authority: WO
Inventors: 努芦澤; 喜郎平野
Original assignee: タツタ電線株式会社
Priority date: 2019-10-03
Filing date: 2020-09-09
Publication date: 2021-04-08
Also published as: JP2023007507A

Abstract

This thread-feeding part is characterized by comprising a base, which can be attached to and detached from a rod part, and a rotating part, which has a through hole through which thread that has been fed can pass, the rotating part being provided on the base, the rotating part comprising: a direction-changing part for changing the direction of thread-feeding; a connecting part, which connects the direction-changing part and the base in such a manner that the direction-changing part can rotate about the central axis of the through hole; and a weight, which is provided so that the central axis overlaps with the centroid of a section, which includes a portion of the connecting part and the direction-changing part and rotates relative to the base, in the rotating part.

Description

Thread feeding section, carrier of braiding machine equipped with thread feeding section, and braiding machine

Cross-reference of related applications

The present application claims the priority of Japanese Patent Application No. 2019-182863, and the content of Japanese Patent Application No. 2019-182863 is incorporated into the description of the present application by citation.

The present invention relates to a thread feeding section for feeding threads in a carrier of a braiding machine, a carrier of a braiding machine provided with the thread feeding section, and a braiding machine.

Conventionally, a braiding machine equipped with a plurality of carriers has been known (see Patent Document 1). As shown in FIGS. 9 and 10, the braiding machine includes a base portion 91 on which the annular meandering groove 911 is formed, and a plurality of carriers 92, each of which moves along the annular meandering groove 911.

Each carrier 92 has a bobbin mast 921 extending in the vertical direction and on which a bobbin B wound with a thread S is mounted, an auxiliary mast 922 extending substantially parallel to the bobbin mast 921, and a thread feeding arranged at the tip of the auxiliary mast 922. It has a part 923 and.

The thread feeding portion 923 has a guide roller 9230, a first bracket 9231 that rotatably holds the guide roller 9230, and a second bracket 9232 that is connected to the first bracket 9231 and has a feeding outlet 9232a.

The first bracket 9231 is pivotally supported at the tip of the auxiliary mast 922 via a bearing. As a result, the first bracket 9231 is rotatable around the axis C extending in the vertical direction.

In this braiding machine 90, each carrier 92 moves along the annular meandering groove 911 while feeding out the thread S, so that the thread S is wound around the tubular member 95 arranged at the center to form a braiding layer. At this time, in the thread feeding portion 923 of each carrier 92, the feeding outlet 9232a of the second bracket 9232 rotates around the shaft C so as to face the tubular member 95 side.

In the above braiding machine 90, when each carrier 92 moves along the annular meandering groove 911, that is, when it revolves while meandering around the tubular member 95, before and after the inflection point of the annular meandering groove 911. The thread feeding portion 923 may be shaken by centrifugal force, that is, so-called swinging (see arrow γ in FIG. 10). The occurrence of this swing becomes remarkable as the revolution speed of each carrier 92 increases.

When such a swing of the thread feeding portion 923 occurs, the direction of the thread S fed toward the tubular member 95 and the opening direction of the feeding outlet 9232a of the thread feeding portion 923 deviate from each other, and the thread S of the feeding outlet 9232a Contact the peripheral wall. Since the yarn feeding portion 923 feeds out the yarn S while taking it in and out from the feeding outlet 9232a, the yarn S may be damaged (fluffing occurs) due to the contact between the yarn S and the peripheral wall of the feeding outlet 9232a.

Japanese Patent Application Laid-Open No. 62-133162

Therefore, it is an object of the present invention to provide a yarn feeding portion in which swinging is unlikely to occur when the carrier revolves while meandering in the braiding machine, a carrier of the braiding machine provided with the yarn feeding portion, and a braiding machine. To do.

The thread feeding portion of the present invention is
It is a thread feeding part that can be attached to and detached from the rod part that extends along the thread that is fed in the carrier of the braiding machine.
A base that can be attached to and detached from the rod
A rotating portion having a through hole through which the unwound yarn can pass and being arranged at the base portion is provided.
The rotating part
A direction changing portion that changes the feeding direction of the thread that has passed through the through hole, and a direction changing portion.
A connecting portion that connects the direction changing portion and the base portion so that the direction changing portion can rotate around the central axis of the through hole.
The rotating portion has a weight portion that includes a part of the direction changing portion and the connecting portion and is arranged so that the center of gravity of the portion that rotates with respect to the base portion overlaps with the central axis. ..

In the thread feeding section,
The direction changing portion may be a roller rotatable around a rotation axis extending in a direction orthogonal to the central axis.

In addition, in the thread feeding part,
The rotating portion has a regulating portion having a pair of facing portions, and the pair of facing portions are arranged on both sides of the roller in the extending direction of the rotating shaft and face each other with the thread unwound from the roller. You may.

in this case,
The regulating portion preferably has an annular portion including the pair of facing portions.

In addition, in the thread feeding part,
A part of the annular portion in the circumferential direction is opened,
The regulating portion has a guide portion extending from the end of the open portion of the annular portion.
The guide portion may guide the yarn inside the annular portion by moving the thread through which the through hole is inserted along the guide portion.

In addition, in the thread feeding part,
The annular portion and the guide portion may be formed of a single linear member.

In addition, in the thread feeding part,
Even if the weight portion has a weight arranged at a distance from the central axis of the through hole and a support portion that supports the weight so that the relative position between the weight and the central axis can be changed. Good.

in this case,
The support portion may be a linear member that connects the weight and the connection portion and is deformable.

Further, the carrier of the present invention is
A carrier placed on a braiding machine
The rod part that extends along the thread that is unwound,
It is provided with any of the above-mentioned thread feeding portions attached to the tip end portion of the rod portion.

Further, the braiding machine of the present invention is
It is provided with a plurality of carriers each having a rod portion extending along the thread to be fed and any of the above-mentioned thread feeding portions attached to the tip of the rod portion.
Each of the plurality of carriers revolves while meandering around the portion where the yarn is braided.

FIG. 1 is a schematic diagram for explaining the configuration of the braiding machine according to the present embodiment. FIG. 2 is a diagram showing the trajectory and operation of the carrier in the braiding machine. FIG. 3 is a diagram for explaining the configuration of the carrier. FIG. 4 is a perspective view of a thread feeding portion attached to the carrier. FIG. 5 is a plan view of the thread feeding portion. FIG. 6 is a cross-sectional view taken along the line VI-VI of FIG. FIG. 7 is a perspective view of a thread feeding portion according to another embodiment. FIG. 8 is a perspective view of a thread feeding portion according to another embodiment. FIG. 9 is a diagram for explaining the configuration of a carrier of a conventional braiding machine. FIG. 10 is a diagram showing the trajectory and operation of the carrier.

The thread feeding portion of the present embodiment is
It is a thread feeding part that can be attached to and detached from the rod part that extends along the thread that is fed in the carrier of the braiding machine.
A base that can be attached to and detached from the rod
A rotating portion having a through hole through which the unwound yarn can pass and being arranged at the base portion is provided.
The rotating part
A direction changing portion that changes the feeding direction of the thread that has passed through the through hole, and a direction changing portion.
A connecting portion that connects the direction changing portion and the base portion so that the direction changing portion can rotate around the central axis of the through hole.
The rotating portion has a weight portion that includes a part of the direction changing portion and the connecting portion and is arranged so that the center of gravity of the portion that rotates with respect to the base portion overlaps with the central axis. ..

According to this configuration, even if the carrier revolves while meandering in the braiding machine while the thread feeding portion is attached to the rod portion of the carrier, the center of gravity of the rotatable portion is centered (penetrated) in the rotating portion. Since it overlaps with the central axis of the hole), it is difficult for the rotatable portion to swing due to centrifugal force, that is, the occurrence of swinging in the thread feeding portion is suppressed.

In the thread feeding section,
The direction changing portion may be a roller that can rotate around a rotation axis extending in a direction orthogonal to the central axis.

According to this configuration, the roller rotates according to the feeding of the yarn, so that the yarn is not easily damaged, that is, fluffing of the yarn is suppressed.

In addition, in the thread feeding part,
The rotating portion has a regulating portion having a pair of facing portions.
The pair of facing portions may be arranged on both sides of the roller in the extending direction of the rotating shaft and may face each other with the thread drawn from the roller sandwiched between them.

According to this configuration, the movement of the yarn in the axial direction is restricted by the pair of facing portions, so that the yarn is less likely to come off the roller.

According to such a configuration, the yarn whose feeding direction is changed by the roller is fed through the inside of the annular portion, so that the movement of the yarn in a direction other than the rotation axis direction is also restricted, whereby the yarn is restricted. It becomes more difficult to come off from the roller.

According to this configuration, by moving the thread along the guide portion to the inside of the annular portion, the thread is passed through the inside of the annular portion as compared with the case where the annular portion is closed (annular without an open portion). easy.

In addition, in the thread feeding part,
By forming the annular portion and the guide portion with one linear member, the configuration of the regulation portion can be simplified.

In this way, the relative position between the weight and the central axis of the through hole can be changed by the support portion, so that the position of the center of gravity of the rotating portion in the thread feeding portion can be adjusted.

According to such a configuration, a configuration in which the relative position between the weight and the central axis of the through hole can be changed can be realized by a simple configuration.

In addition, the carrier of this embodiment is
A carrier placed on a braiding machine
The rod part that extends along the thread that is unwound,
It is provided with any of the above-mentioned thread feeding portions attached to the tip end portion of the rod portion.

According to this configuration, even if the carrier revolves while meandering in the braiding machine, the center of gravity of the rotating portion in the rotating portion overlaps with the rotation center (central axis of the through hole), so that the portion is centrifugal. It is difficult to swing due to the force, that is, the occurrence of swinging at the thread feeding portion is suppressed.

Further, the braiding machine of this embodiment is
It is provided with a plurality of carriers each having a rod portion extending along the thread to be fed and any of the above-mentioned thread feeding portions attached to the tip of the rod portion.
Each of the plurality of carriers revolves while meandering around the portion where the yarn is braided.

According to this configuration, when each carrier revolves while meandering, the center of gravity of the rotating portion in the rotating portion of the carrier overlaps with the rotation center (central axis of the through hole). However, it is difficult to swing due to centrifugal force, that is, the occurrence of swinging at the thread feeding portion is suppressed.

Based on the above, according to the present embodiment, there is provided a yarn feeding portion in which swinging is unlikely to occur when the carrier revolves while meandering in the braiding machine, a carrier of the braiding machine provided with the yarn feeding portion, and a braiding machine. be able to.

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 6.

The braiding machine of the present embodiment uses various threads as materials and alternately crosses and knits them to form a tubular braid layer around a braid, a long core member, or the like. Further, in the braiding machine of the present embodiment, for example, a yarn composed of glass fibers or a yarn composed of inorganic fibers such as basalt is knitted (braided) to form a braid or a braid layer. The linear member having a braid or a braid layer formed by this braiding machine may be used for, for example, an electric wire, a heat-resistant jacket for a thermocouple, a heat-resistant glass tube, and the like, and the purpose of use is not limited.

Specifically, as shown in FIGS. 1 and 2, the braiding machine of the present embodiment includes a plurality of carriers 1 (16 or 24 in the example of the present embodiment) capable of feeding out the threads S, respectively. A drive unit 11 on which a plurality of carriers 1 are arranged, and a yarn collecting unit 12 for focusing the yarn S unwound from each carrier 1 are provided.

The drive unit 11 has an upper plate 111 that extends in the horizontal direction, and causes (moves) a plurality of carriers 1 on the upper plate 111. The upper plate 111 has two annular track grooves (first annular track groove 112a, second annular track groove 112b) that serve as tracks when each carrier 1 travels. The

annular track grooves

112a and 112b are annular grooves (tracks) centered on the thread collecting portion 12 in a plan view. When the carrier 1 travels in the

annular raceway grooves

112a and 112b in the circumferential direction, that is, when it revolves around the thread collecting portion 12, the carrier 1 repeats contact and detachment with respect to the thread collecting portion 12 in a plan view. , Each

annular track groove

112a, 112b extends in the circumferential direction while meandering. These two

annular track grooves

112a and 112b intersect at a plurality of positions in the circumferential direction.

In the drive unit 11, a plurality of carriers 1 (8 or 12 in the example of the present embodiment) are arranged in the first annular raceway groove 112a of the upper plate 111 at intervals in the circumferential direction, and the second annular is formed. A plurality of carriers 1 (8 or 12 in the example of the present embodiment) are arranged in the raceway groove 112b at intervals in the circumferential direction. Then, the drive unit 11 causes a plurality of (8 or 12) carriers 1 to travel (revolve) clockwise in the first annular track groove 112a in a plan view, and a plurality (8) in the second annular track groove 112b. Or 12) carriers 1 are driven (revolved) counterclockwise in a plan view. Since FIG. 1 schematically shows the configuration of the braiding machine 10, the number and arrangement positions of the carriers 1 are different from those of the actual braiding machine 10. Further, FIG. 2 does not show the arrangement and operation of the plurality of carriers 1 on the upper plate 111, but the thread of the carrier 1 at each position when one carrier 1 travels in the first annular track groove 112a. The operation (direction) of the feeding unit 5 is shown.

As shown in FIG. 3, each of the plurality of carriers 1 includes a rod portion 4 extending along the thread S to be fed out, and a thread feeding section 5 detachably attached to the rod portion 4. Specifically, each carrier 1 is parallel to or parallel to the base portion 2 connected to the drive unit 11, the holding rod 3 extending from the base portion 2 and holding the bobbin B around which the thread S is wound, and the holding rod 3 from the base portion 2. A rod portion 4 extending substantially in parallel and a thread feeding portion 5 detachably attached to the tip of the rod portion 4 are provided.

The base portion 2 includes an elliptical columnar guided portion 21, an upper flange portion 22 extending in the radial direction of the guided portion 21 at the upper portion of the guided portion 21, and a lower flange portion extending in the radial direction at the lower portion of the guided portion 21. It has a 23 and a shaft portion 24 extending downward from the lower flange portion 23. Further, the upper flange portion 22 has a protrusion 221 protruding upward from the peripheral edge portion.

The base portion 2 configured in this way is driven by the upper flange portion 22 and the lower flange portion 23 in a state where the guided portion 21 is fitted into the

annular raceway grooves

112a and 112b formed in the upper plate 111. The edges of the

annular track grooves

112a and 112b in the upper plate 111 are sandwiched. The shaft portion 24 is connected to the drive mechanism of the drive unit 11.

The holding rod 3 rotatably holds the bobbin B around the central axis C1 of the bobbin B. The holding rod 3 of the present embodiment extends upward from the base portion 2 and holds the bobbin B so that the extending direction of the holding rod 3 coincides with the central axis C1 of the bobbin B.

The rod portion 4 applies a predetermined tension to the yarn S fed from the yarn feeding portion 5 to the yarn collecting portion 12. The rod portion 4 extends upward from the base portion 2. Specifically, the rod portion 4 has a first shaft 41 extending upward from the protrusion 221 of the base portion 2 and a second shaft 42 extending parallel to the first shaft 41 from the protrusion 221 of the base portion 2. Further, the rod portion 4 includes a first roller 43 arranged on the first shaft 41, an upper end support portion 44 that supports the upper end of the second shaft 42, and a first urging portion 45 that urges the upper end support portion 44. And a second roller 46 arranged on the second shaft 42, and a second urging portion 47 for urging the second roller 46.

The first shaft 41 has a first connecting portion 411 that extends upward from the protruding portion 221 and to which the thread feeding portion 5 is connected to the tip portion (upper end portion). The first shaft 41 extends to a substantially upper end position of the holding rod 3 or the bobbin B. The first connection portion 411 of the present embodiment is composed of a male screw.

The second shaft 42 extends upward from the protrusion 221 (specifically, the position opposite to the holding rod 3 across the first shaft 41), and the tip (upper end) is supported by the upper end support portion 44. The second shaft 42 is shorter than the first shaft 41.

The first roller 43 extends in a direction orthogonal to the extending direction of the first shaft 41 (vertical direction in FIG. 3) and the alignment direction of the holding rod 3 and the first shaft 41 (horizontal direction in FIG. 3), respectively. It is a roller that can rotate around, and is arranged at an intermediate position in the vertical direction of the first shaft 41. A thread S unwound from the bobbin B is wound around the first roller 43.

The upper end support portion 44 has a tubular main body 441 that can move relative to the first shaft 41 in the vertical direction with the first shaft 41 inserted, and an extension portion 442 that extends from the main body 441. .. The extension portion 442 has a recess 442a into which the tip (upper end) of the second shaft 42 is fitted.

The first urging portion 45 is arranged between the thread feeding portion 5 and the upper end supporting portion 44, and urges the upper end supporting portion 44 toward the base portion 2. The first urging portion 45 of the present embodiment is a spiral winding spring, and in a state where the first shaft 41 is inserted along the spiral center, between the thread feeding portion 5 and the main body 441 of the upper end support portion 44. Be placed. The first urging portion 45 urges the upper end support portion 44 in a state (position) in which the tip of the second shaft 42 is fitted into the recess 442a toward the base portion 2.

The second roller 46 is a roller that can rotate around a rotation axis C3 parallel to the rotation axis C2 of the first roller 43, and is movably arranged on the second shaft 42 along the second shaft 42. A thread S unwound from the bobbin B via the first roller 43 is wound around the second roller 46.

The second urging portion 47 is arranged between the upper end support portion 44 (extended portion 442) and the second roller 46, and urges the second roller 46 to the base 2 side. The second urging portion 47 of the present embodiment is a spiral spring, and is arranged between the extending portion 442 and the second roller 46 with the second shaft 42 inserted along the spiral center. .. The second urging portion 47 is in a state where at least the second roller 46 is moved from the protrusion 221 to the extension portion 442 side along the second shaft 42, that is, the second roller 46 is on the second shaft 42. The second roller 46 is urged toward the base 2 when it is in the middle position in the extending direction. In the braiding machine 10 of the present embodiment, the second roller 47 urges the second roller 46 to increase the distance from the first roller 43 (downward in the example shown in FIG. 3). When the 46 tries to move, tension is always applied to the thread S unwound from the carrier 1.

As shown in FIGS. 4 to 6, the thread feeding portion 5 has a base portion 51 that can be attached to and detached from the rod portion 4, and a through hole 50 through which the thread S to be fed can pass, and rotates with respect to the base portion 51. A possible rotating portion 52 is provided.

The base 51 has a second connecting portion 511 to which the first connecting portion 411 of the rod portion 4 is connected, and a base main body 512 to which the second connecting portion 511 and the rotating portion 52 are arranged. The base body 512 of the present embodiment is a plate-shaped member that extends in a direction orthogonal to the extending direction of the rod portion 4 (vertical direction in the example of the present embodiment). The base body 512 has a hole 512a penetrating in the thickness direction (vertical direction), and the rotating portion 52 is attached in a state of being fitted into the hole 512a. Further, the second connection portion 511 of the present embodiment is composed of a female screw and is screwed with the first connection portion (male screw) 411 of the first shaft 41.

The rotating portion 52 includes a direction changing portion 53 that changes the feeding direction (moving direction) of the thread S, a connecting portion 54 that connects the direction changing portion 53 and the base 51 (specifically, the base main body 512), and a direction changing portion 54. It has a weight portion 55 connected to the portion 53 or the connection portion 54. The rotating portion 52 of the present embodiment also has a regulating portion 56 or the like that regulates the feeding direction of the thread S that is fed from the thread feeding section 5.

The direction changing section 53 is wound with the thread S to be fed, and changes the moving direction (feeding direction) of the thread S before and after the direction changing section 53. The direction changing portion 53 of the present embodiment has a rotating shaft C4 extending in a direction orthogonal to the extending direction of the rod portion 4 (in the example of the present embodiment, the vertical direction), and is a roller rotatable around the rotating shaft C4. Is. A roller groove 53a is formed on the outer peripheral portion of the roller 53 over the entire circumference. A thread S is hung between the roller 53 and the second roller 46 of the rod portion 4, and the roller 53 (specifically, a roller groove) is in a direction different from the extending direction of the thread S. The feeding direction of the thread S is changed in the tangential direction of 53a).

The connection portion 54 includes a bearing portion 541 arranged in the base main body 512 in a state of penetrating the base main body 512 in the extending direction of the rod portion 4, and a roller support portion 542 attached to the bearing portion 541 and supporting the roller 53. , (See FIG. 6).

The bearing portion 541 is attached to the base main body 512 in a state of being fitted into the hole 512a of the base main body 512. Specifically, the bearing portion 541 is an annular outer ring portion 5411 fixed to the base body 512 and an inner ring portion 5411 arranged inside the outer ring portion 5411 and rotatable with respect to the outer ring portion 5411. It has a ring portion 5412 and a plurality of balls (rolling bodies) 5413 arranged between the outer ring portion 5411 and the inner ring portion 5412. The through hole 50 of the thread feeding portion 5 is defined by the region surrounded by the bearing portion 541 (specifically, the region surrounded by the inner ring portion 5412) or the member arranged inside this region.

The roller support portion 542 is connected to the inner ring portion 5412 of the bearing portion 541 to support the roller 53. As a result, the roller 53 can rotate about the central axis C5 of the through hole 50 as the center of rotation. Specifically, the roller support portion 542 has a plate-shaped first portion 5421 having a hole 542a having a size corresponding to the through hole 50 and extending along the base main body 512, and is erected with respect to the first portion 5421. It also has a plate-shaped second portion 5422 on which the rollers 53 are arranged.

The first portion 5421 is connected to the inner ring portion 5412 in a state of being overlapped with the inner ring portion 5412 of the bearing portion 541. The first portion 5421 of the present embodiment is directly or indirectly connected to the inner ring portion 5412 by the eyelet member 543 (see FIG. 6). Therefore, the through hole 50 of the rotating portion 52 of the present embodiment is defined by the eyelet member 543.

The second portion 5422 supports the roller 53 so that the extending direction of the rotation axis C4 is orthogonal to the spreading direction of the second portion 5422.

In the roller support portion 542 of the present embodiment, when the roller 53 rotates with the roller support portion 542 about the central axis C5 of the through hole 50 at the second portion 5422 (roller support portion 542), the roller 53 rotates. The thread S spanned between the roller 53 and the second roller 46 of the rod portion 4 is arranged at a position where it does not come into contact with the inner peripheral edge of the through hole 50 (in the example of the present embodiment, the eyelet member 543).

The weight portion 55 is arranged so that the center of gravity of the portion of the rotating portion 52 that rotates with respect to the base portion 51 overlaps with the central axis C5 of the through hole 50. That is, the weight portion 55 is a so-called balancer of the rotating portion. In the example of the present embodiment, the rotating portion is composed of an inner ring portion 5412 of the bearing portion 541, a roller support portion 542, a roller 53, a regulation portion 56, and the like.

Specifically, the weight portion 55 is a weight support portion (a weight support portion) that connects a weight 551 arranged at a distance from the central axis C5 of the through hole 50 and the weight 551 and the roller support portion 542 to support the weight 551. Support portion) 552 and.

The weight support portion 552 supports the weight 551 so that the relative position between the weight 551 and the central axis C5 of the through hole 50 can be changed. The weight support portion 552 of the present embodiment is a linear member (for example, a metal linear member or the like) that extends from the roller support portion 542 and is deformable. In the rotating portion 52 of the present embodiment, the weight 551 is located on the opposite side of the roller 53 and the second portion 5422 (the portion supporting the roller 53) with the central axis C5 in between when viewed from the direction of the central axis C5. In addition, the weight support portion 552 supports the weight 551 (see FIG. 5).

The regulation portion 56 has an annular portion 561 through which the thread S passes and a part of which is open in the circumferential direction, and a guide portion 562 extending from the end of the open portion α of the annular portion 561. Further, the regulating portion 56 has an annular portion support portion 563 that connects the annular portion 561 and the roller support portion 542 to support the annular portion 561. The regulation portion 56 of the present embodiment is attached to the roller support portion 542.

The annular portion 561 is arranged on the upper side of the roller 53 (the side opposite to the side of the base 2). The annular portion 561 includes a pair of facing portions 5611 that face each other on both sides of the roller 53 in the extending direction of the rotation shaft C4 and that sandwich the thread S that is unwound from the roller 53. Specifically, the annular portion 561 includes a pair of opposing portions 5611 extending substantially parallel to each other, and a first curved portion 5612 connecting one end (first end portion) 5611a of the pair of opposing portions 5611. A second curved portion 5613 extending from an end portion (second end portion) 5611b opposite to the first end portion 5611a in one of the pairing facing portions 5611 A facing portion 5611A is included.

Each of the pair of facing portions 5611 extends in a straight line. Specifically, the pair of facing portions 5611 extend parallel to or substantially parallel to each other when viewed from the extending direction of the rod portion 4 (the direction of the central axis C5), and the pair of opposed portions 5611 extend from the extending direction of the rotation axis C4 of the roller 53. It is inclined or curved so as to approach the base 51 as it advances from the two end 5611b toward the first end 5611a (see FIG. 6).

Each of the first curved portion 5612 and the second curved portion 5613 has a curved shape that is convex in the direction away from each other when viewed from the extending direction of the rod portion 4 (see FIG. 5). In the annular portion 561 of the present embodiment, the pair of facing portions 5611 do not overlap (do not match) each other when viewed from the extending direction of the rotation axis C4, and go from the first end portion 5611a to the second end portion 5611b side. It is slightly offset so that the interval becomes larger as it increases. The deviation between the second end portion 5611b of the other facing portion 5611B of the pair of facing portions 5611 and the second curved portion 5613 constitutes the open portion α in the above-mentioned annular portion 561.

The guide portion 562 guides the thread S inside the annular portion 561 by moving the thread S through which the through hole 50 is inserted along the guide portion 562. The guide portion 562 is a linear portion (member) extending from the end portion of the second curved portion 5613.

The annular portion support portion 563 is a linear portion extending from the roller support portion 542 to the second end portion 5611b of the other opposing portion 5611B of the annular portion.

The above regulation unit 56 is composed of one linear member. Further, in the rotating portion 52 of the present embodiment, the weight supporting portion 552 and the regulating portion 56 are composed of one linear member. This linear member is fixed to the second portion 5422 of the roller support portion 542 by a screw Sc.

In the braiding machine 10 configured as described above, each carrier 1 arranged in the first annular raceway groove 112a travels clockwise in the first annular raceway groove 112a in a plan view while feeding out the thread S, and at the same time, the first ring road groove 112a is formed. Each carrier 1 arranged in the second annular track groove 112b travels counterclockwise in the second annular track groove 112b in a plan view while feeding out the thread S.

At this time, the direction (position) of the yarn collecting portion 12 with respect to each carrier 1 moving along the

annular track grooves

112a and 112b changes, but in each carrier 1, the yarn S is unwound from the roller 53 in the yarn feeding portion 5. The rotating portion 52 rotates around the central axis C5 of the through hole 50 so that the direction faces the thread collecting portion 12.

Specifically, when the position of the thread collecting section 12 with respect to the carrier 1 changes by revolving around the thread collecting section 12 while meandering, the thread S unwound from the thread feeding section 5 becomes the regulating section 56 (specifically, the annular portion 561). It comes into contact with one facing portion 5611A or the other facing portion 5611B), and the rotating portion 52 rotates around the central axis C5 to change its direction. At this time, since the center of gravity of the rotating portion of the rotating portion 52 is at the center of rotation (central axis C5 of the through hole 50), the thread S touches the regulating portion 56 with a slight contact (that is, the regulating portion by contact). Even if the force applied to the 56 is small), the rotating portion rotates so as to face the thread collecting portion 12.

Further, since the first and second

annular track grooves

112a and 112b meander, when each carrier 1 travels along these

annular track grooves

112a and 112b, the carrier 1 frequently changes in the traveling direction. However, since the center of gravity of the rotating portion of the rotating portion 52 is located at the center of rotation (central axis C5 of the through hole 50), the centrifugal force acting on the rotating portion is suppressed. As a result, in the thread feeding portion 5 of each carrier 1, rotation (so-called swinging) around the central axis C5 due to the centrifugal force of the rotating portion 52 (rotating portion) is suppressed.

In this way, in the braiding machine 10, each carrier 1 travels through the first annular track groove 112a and the second annular track groove 112b while feeding out the yarn S, so that each carrier 1 is fed out from each carrier 1 collected in the yarn collecting portion 12. The yarn S is woven (braided).

According to the thread feeding portion 5 of the braiding machine 10 described above, as described above, even if the carrier 1 revolves while meandering in the braiding machine 10, the center of gravity of the rotating portion in the rotating portion 52 is the center of rotation ( It overlaps with the central axis C5) of the through hole 50. Therefore, it is difficult for the portion to swing due to centrifugal force, that is, the occurrence of swinging in the thread feeding portion 5 is suppressed.

Further, in the thread feeding section 5 of the braiding machine 10 of the present embodiment, the direction changing section 53 is a roller. As a result, when the thread S is unwound from the thread feeding portion 5, the roller 53 rotates in accordance with the feeding of the thread S. Therefore, the thread S is less likely to be damaged (fluffing and the like can be suppressed) as compared with the direction changing portion having a structure that does not rotate.

Further, in the yarn feeding portion 5 of the braiding machine 10 of the present embodiment, a pair of rotating portions 52 face each other on both sides of the roller 53 in the extending direction of the rotating shaft C4 and sandwiching the yarn S unwound from the roller 53. It has a regulating portion 56 having an opposing portion 5611. Therefore, the pair of facing portions 5611 restricts the movement of the yarn S unwound from the yarn feeding portion 5 in the direction of the rotation axis C4. As a result, the thread S does not easily come off from the roller 53.

Moreover, in the thread feeding section 5 of the present embodiment, since the regulating section 56 has the annular portion 561 and the thread S whose feeding direction is changed by the roller 53 is fed through the inside of the annular portion 561, the thread S is fed. The movement of the rotation axis in directions other than the C4 direction is also restricted. As a result, the thread S is more difficult to come off from the roller 53.

Further, in the thread feeding portion 5, a part of the annular portion 561 in the circumferential direction is opened, and the regulating portion 56 has a guide portion 562 extending from the end of the opened portion α of the annular portion 561. Therefore, when the thread S is moved along the guide portion 562 to the inside of the annular portion 561 when the yarn is replaced, the annular portion is closed (annular without an open portion) as compared with the case where the annular portion is closed. It becomes easy to pass the thread S inside the annular portion 561.

Further, in the thread feeding portion 5, since the annular portion 561 and the guide portion 562 are composed of one linear member, the configuration of the regulating portion 56 is simplified.

Further, in the thread feeding portion 5, the weight supporting portion 552 can change the relative position between the weight 551 and the central axis C5 of the through hole 50. Therefore, by changing this relative position, the position of the center of gravity of the rotating portion in the thread feeding portion 5 can be adjusted.

Further, the weight portion 55 of the present embodiment has a simple configuration in which the relative position between the weight 551 and the central axis C5 of the through hole 50 can be changed by using the weight support portion 552 as a deformable linear member. It is realized by.

The yarn feeding portion, the carrier provided with the yarn feeding portion, and the braiding machine of the present invention are not limited to the above embodiments, and of course, various changes can be made without departing from the gist of the present invention. Is. For example, the configuration of one embodiment can be added to the configuration of another embodiment, and a part of the configuration of one embodiment can be replaced with the configuration of another embodiment. In addition, some of the configurations of certain embodiments can be deleted.

In the braiding machine 10 of the above embodiment, the thread feeding portion 5 is configured to be detachable from the rod portion 4, but is not limited to this configuration. The thread feeding portion 5 may be firmly fixed to the rod portion 4 by welding or the like. That is, the thread feeding portion 5 may be configured so that it cannot be removed from the rod portion 4.

The specific configuration of the rod portion 4 is not limited. The rod portion 4 of the above embodiment has a plurality of

shafts

41, 42, a plurality of

rollers

43, 46, etc., but is configured so that the rod portion 4 extends in a predetermined direction and the thread feeding portion 5 can be arranged at the tip thereof. The yarn S supplied from the bobbin B may be guided along the rod portion 4 to the yarn feeding portion 5.

The specific configuration of the base 51 in the thread feeding portion 5 is also not limited. The base portion 51 may have a configuration in which it has a connecting portion (second connecting portion) 511 with the rod portion 4 and the rotating portion 52 can be arranged (attachable).

The direction changing portion 53 of the thread feeding portion 5 of the above embodiment is a roller, but the configuration is not limited to this. The direction changing portion 53 may have a non-rotating configuration such as a columnar member extending in a direction orthogonal to the extending direction of the rod portion 4, as shown in FIG. 7, for example. That is, the thread S sent along the rod portion 4 may change its direction around an axis extending in a direction orthogonal to the extending direction of the rod portion 4. In this case, the direction changing portion 53 is preferably made of a hard material such as SIC (silicon carbide) having a small friction coefficient.

The thread feeding section 5 of the above embodiment has a regulating section 56, but is not limited to this configuration. The thread feeding section 5 may have a configuration without the regulating section 56.

The specific configuration of the regulatory unit 56 is also not limited. The regulating unit 56 may have at least a pair of facing units 5611. For example, the regulation unit 56 of the above embodiment has an annular portion 561 that is partially open, but may have a configuration having a closed annular portion. Further, the regulating portion 56 may have a configuration in which the first curved portion 5612 is not provided, that is, a configuration in which the first end portions 5611a of the pair of facing portions 5611 are open. In this case, there may be a configuration in which there is no open portion α on the side of the second curved portion 5613, and the second curved portion 5613 connects the second end portions 5611b of the pair of facing portions 5611 to each other.

Further, in the rotating portion 52 of the above embodiment, the regulating portion 56 and the weight supporting portion 552 of the weight portion 55 are integrally configured (composed of one linear member), but the configuration is not limited to this. .. The regulating portion 56 and the weight portion 55 may be configured as separate bodies (separate members).

Further, when the regulation portion 56 and the weight portion 55 are integrally formed, it does not have to be composed of one linear member. For example, as shown in FIG. 8, the rotating portion 52 may have a sheet metal member 57 surrounding the direction changing portion 53 and a weight 58 provided with a screw portion screwed with the sheet metal member 57. In the example shown in FIG. 8, the sheet metal member 57 is detachably attached to the roller support portion 542 (second portion 5422) of the connecting portion 54. In such a configuration, the center of gravity of the rotating portion of the rotating portion 52 is adjusted by rotating the weight 58 to the sheet metal member 57 (the wall portion facing the direction changing portion 53 across the central axis C5 of the through hole 50). It is done by advancing and retreating.

In the sheet metal member 57, the regulating portion 56 may be composed of, for example, a notch 571 or a slit provided in the sheet metal member 57. In this notch 571, the facing edges are a pair of facing portions 5611, and the space between the first end portions 5611a of the pair of facing portions 5611 is open. That is, the pair of facing portions 5611 in the regulating portion 56 is not limited to the linear member (part), and various types can be selected as long as the configuration can restrict the movement of the thread S in the extending direction of the rotation axis C4 of the roller 53. ..

Further, in the braiding machine 10 of the above embodiment, each carrier 1 is provided so that the axis (central axis C5) which is the center of rotation of the rotating portion in the central axis C1 of the bobbin B and the rotating portion 52 is in the vertical direction. Is arranged, but is not limited to this configuration. For example, each carrier 1 may be arranged so that the axis (central axis C5) that is the center of rotation of the rotating portion in the central axis C1 of the bobbin B or the rotating portion 52 is in the horizontal direction. Even in such a configuration, since the center of gravity of the rotating portion in the rotating portion 52 overlaps with the rotation center (central axis C5 of the through hole 50), each carrier 1 changes the moving direction on the vertical surface (meandering). When it revolves (equal to the same), it is difficult for the rotating portion to swing due to centrifugal force, that is, the occurrence of swinging in the thread feeding portion 5 is suppressed.

In order to express the present invention, the present invention has been appropriately and sufficiently described through the embodiments with reference to the drawings described above, but those skilled in the art can easily change and / or improve the above-described embodiments. It should be recognized that it can be done. Therefore, unless the modified or improved form implemented by a person skilled in the art is at a level that deviates from the scope of rights of the claims stated in the claims, the modified form or the improved form is the scope of rights of the claims. It is interpreted as being comprehensively included in.

1 ... Carrier, 2 ... Base, 21 ... Guided part, 22 ... Upper flange part, 221 ... Protrusion part, 23 ... Lower flange part, 24 ... Shaft part, 3 ... Holding rod, 4 ... Rod part, 41 ... First Shaft, 411 ... 1st connection, 42 ... 2nd shaft, 43 ... 1st roller, 44 ... Upper end support, 441 ... Main body, 442 ... Extension, 442a ... Recess, 45 ... 1st bias, 46 ... second roller, 47 ... second urging part, 5 ... thread feeding part, 50 ... through hole, 51 ... base part, 511 ... second connection part, 512 ... base body, 512a ... hole, 52 ... rotating part, 53 ... Direction changing part (roller), 53a ... Roller groove, 54 ... Connection part, 541 ... Bearing part, 5411 ... Outer ring part, 5412 ... Inner ring part, 5413 ... Ball (rolling body), 542 ... Roller support part, 542a ... hole, 5421 ... first part, 5422 ... second part, 543 ... eyelet member, 55 ... weight part, 551 ... weight, 552 ... weight support part (support part), 56 ... regulation part, 561 ... annular part, 5611 ... Opposing portion, 5611A ... One opposing portion, 5611B ... The other opposing portion, 5611a ... First end portion, 5611b ... Second end portion, 5612 ... First curved portion, 5613 ... Second curved portion, 562 ... Guide Part, 563 ... annular part support part, 57 ... sheet metal member, 571 ... notch (regulatory part), 58 ... weight, 10 ... braiding machine, 11 ... drive part, 111 ... upper plate, 112a ... first annular track groove, 112b ... Second annular track groove, 12 ... Thread collecting part, B ... Bobbin, C1 ... Bobbin central axis, C2 ... First roller rotation axis, C3 ... Second roller rotation axis, C4 ... Roller (direction change part) ) Rotating shaft, C5 ... Central axis of through hole of rotating part, Sc ... Screw, S ... Thread, α ... Opened part of annular part, 90 ... Braiding machine, 91 ... Base part, 911 ... Circular meandering Groove, 92 ... Carrier, 921 ... Bobbin mast, 922 ... Auxiliary mast, 923 ... Thread feeding part, 9230 ... Guide roller, 9231 ... First bracket, 9232 ... Second bracket, 9232a ... Feeding outlet, 95 ... Tubular member, C ... First bracket shaft

Claims

It is a thread feeding part that can be attached to and detached from the rod part that extends along the thread that is fed in the carrier of the braiding machine.
A base that can be attached to and detached from the rod
A rotating portion having a through hole through which the unwound yarn can pass and being arranged at the base portion is provided.
The rotating part
A direction changing portion that changes the feeding direction of the thread that has passed through the through hole, and a direction changing portion.
A connecting portion that connects the direction changing portion and the base portion so that the direction changing portion can rotate around the central axis of the through hole.
The rotating portion has a weight portion that includes a part of the direction changing portion and the connecting portion and is arranged so that the center of gravity of the portion that rotates with respect to the base portion overlaps with the central axis. , Thread feeding part.
The thread feeding section according to claim 1, wherein the direction changing section is a roller that can rotate around a rotating axis extending in a direction orthogonal to the central axis.
The rotating portion has a regulating portion having a pair of facing portions.
The thread feeding section according to claim 2, wherein the pair of facing portions are arranged on both sides of the roller in the extending direction of the rotating shaft and face each other with the thread fed from the roller sandwiched between them.
The thread feeding section according to claim 3, wherein the regulating section has an annular portion including the pair of facing portions.
A part of the annular portion in the circumferential direction is opened,
The regulating portion has a guide portion extending from the end of the open portion of the annular portion.
The thread feeding portion according to claim 4, wherein the guide portion guides the yarn inside the annular portion by moving the yarn through which the through hole is inserted along the guide portion.
The thread feeding portion according to claim 5, wherein the annular portion and the guide portion are composed of a single linear member.
A claim that the weight portion has a weight arranged at a distance from the central axis of the through hole, and a support portion that supports the weight so that the relative position between the weight and the central axis can be changed. The thread feeding portion according to any one of 1 to 6.
The thread feeding portion according to claim 7, wherein the support portion is a linear member that connects the weight and the connecting portion and is deformable.
A carrier placed on a braiding machine
The rod part that extends along the thread that is unwound,
A carrier of a braiding machine comprising the thread feeding portion according to any one of claims 1 to 8 attached to the tip end portion of the rod portion.
A plurality of carriers each having a rod portion extending along a thread to be fed and a thread feeding portion according to any one of claims 1 to 8 attached to the tip of the rod portion.
Each of the plurality of carriers is a braiding machine that revolves while meandering around a portion where the yarn is braided.