CN115303879A - Connection parts and yarn hanging method - Google Patents

Abstract

The connecting member of the present invention securely catches the yarn without slack when the yarn is hung on the winding bobbin mounted on the connecting member. The connecting member (60) is configured such that two winding bobbins (B2a, B2b) used for winding the running yarn (Y) are aligned and connected in a predetermined axial direction. The connecting member (60) includes a base portion (61) arranged to be sandwiched between two winding bobbins arranged in the axial direction, and a base portion (61) arranged on both sides of the base portion in the axial direction and configured to be capable of loading two coils A pair of loading portions (62) of the take-up bobbin. The base part has a pair of stopper parts (66) arranged between the pair of loading parts in the axial direction, and a yarn (yarn (Yb) to be run) arranged between the pair of stopper parts in the axial direction ) a guide surface (73) that guides radially inwardly of the base portion, and a catch claw (72) that catches the yarn guided radially inwardly by the guide surface.

Description

Connecting Parts and Yarn Hanging Method

technical field

The present invention relates to a connecting member and a yarn hanging method for connecting a plurality of winding bobbins for separately winding yarn.

Background technique

The yarn winding devices disclosed in Patent Documents 1 and 2 are configured to be capable of switching the number of yarns that can be simultaneously wound onto a paper tube (winding bobbin) held by a bobbin holder. On the bobbin holder, for example, two winding bobbins (hereinafter referred to as "winding body") connected by a connecting member in the axial direction of the winding bobbin can be attached and detached. Thus, the winding device can wind the two yarns onto the winding body. The end of one of the two yarns can be held, for example, by being caught in a gap between the end surface of the one winding bobbin and the bobbin holder. The end of the other of the two yarns can be held, for example, by being caught in a gap between the end surface of the other winding bobbin and the connecting member.

In the winding device, when the two yarns are caught on the take-up body, the two yarns supplied from the upstream side in the yarn traveling direction are sucked and held by, for example, two suction nozzles, respectively. The two running yarns are approached radially inward by the operator or the automatic yarn hanging device described in Patent Document 2 toward the boundary portion between the rotating winding bobbin and the bobbin holder (or connecting member). When the yarn is caught in the gap between the winding bobbin and the bobbin holder (or connecting member), the part of the yarn upstream of the winding body in the yarn traveling direction is wound. to the adjacent portion of the gap is maintained. Then, a portion of the yarn on the downstream side of the winding body in the yarn traveling direction is naturally broken due to tension, for example, and is suctioned and removed by the suction nozzle. In this way, the end of the yarn is held in the gap between the winding bobbin and the bobbin holder (or the connecting member), and winding of the yarn to the winding body can be started.

prior art literature

patent documents

Patent Document 1: Japanese Patent Laid-Open No. 2013-35640

Patent Document 2: Japanese Patent Laid-Open No. 2013-23385

Summary of the invention

The problem that the invention wants to solve

In recent years, since it is possible to manufacture thinner yarn than before, when the yarn is caught in the gap between the winding bobbin and the connecting member, the following problems have emerged. That is, even if a thin yarn is temporarily caught in the gap between the winding bobbin and the connecting member, it is difficult to be firmly held in the gap and easily falls out of the gap. In such a situation, there is a possibility that the running yarn may become an unstable state in which the yarn is tensed and loosened suddenly. If the slack in the yarn propagates to the upstream side in the yarn running direction, the yarn arranged on the upstream side in the yarn running direction may not run normally. In addition, the thin yarn itself cannot be caught in the gap between the winding bobbin and the connecting member, and there is a possibility of yarn hanging failure.

Contents of the invention

An object of the present invention is to securely catch the yarn without slack when the yarn is hooked to the winding bobbin mounted on the connecting member.

means to solve the problem

The connection member according to the first invention is a connection member configured to connect two winding bobbins arranged in a predetermined axial direction by use of which the running yarn is wound, and is characterized in that it is provided with: a base part between the above-mentioned two winding bobbins arranged in the axial direction, and a pair of loading parts arranged on both sides of the above-mentioned base part in the above-mentioned axial direction and configured to be able to load the above-mentioned two winding bobbins; The base portion has a pair of stoppers arranged between the pair of loading parts in the axial direction to restrict movement of the two winding bobbins in the axial direction, and arranged between the pair of stoppers in the axial direction. Between the parts, a guide surface that guides the running yarn toward the radially inner side of the base portion, and a catching claw that catches the yarn guided by the guide surface toward the radially inner side.

For convenience of explanation, a unit composed of connecting two take-up bobbins and a connecting member is called a take-up body. In the present invention, by bringing the running yarn close to the rotating take-up body and hooking the catching claws of the connecting member on the yarn, the yarn can be wound into the catching claws and reliably caught. Here, if resistance is unexpectedly applied to the yarn by other parts of the connected member before the yarn reaches the catch claw, the yarn may not run smoothly and may become loose. In this regard, in the present invention, the yarn can be smoothly guided radially inward by the guide surface. Therefore, it is possible to prevent the yarn from being unintentionally applied with resistance, and at the same time to allow the yarn to reach the catch claw. Therefore, it is possible to reliably catch the yarn without slack.

A connection member according to a second invention is characterized in that, in the above-mentioned first invention, the catch claw has: a receiving surface formed to face at least one side in the circumferential direction of the base part; One side protrudes and prevents the protruding portion of the running yarn received by the receiving surface from falling off.

In the present invention, when the winding body rotates to one side in the circumferential direction, the yarn can be caught by receiving the yarn on the receiving surface. Here, the receiving surface is only a member that receives the yarn, not a member that sandwiches the yarn to hold it, for example. That is, at least the yarn immediately after being received by the receiving surface can slide relative to the receiving surface. Therefore, it is possible to suppress the yarn from falling into an unstable state where the catching claw suddenly tightens and loosens. Furthermore, the protruding portion can prevent the yarn received by the receiving surface from moving radially outward and falling off the base portion. Therefore, the running yarn can be stably caught and held.

A connection member according to a third invention is characterized in that in the first or second invention, the base portion has a guide slit formed by the guide surface and an opposing surface arranged to face the guide surface in the axial direction.

In the present invention, the yarn can be reliably and stably guided radially inward by the guide slit.

A connection member according to a fourth invention is characterized in that, in any one of the first to third inventions, the guide surface faces at least one side in the axial direction; and the catch claw is arranged on the axial direction of the guide surface. and protrude at least toward one side in the circumferential direction of the above-mentioned base portion; A backup guide surface for guiding, and a backup catch claw disposed on the one side in the axial direction of the guide surface and protruding at least toward the other side in the circumferential direction.

In the present invention, when the connecting member is rotated by 180° in a plane parallel to the axial direction, the backup guide surface can function instead of the guide surface, and the backup catch claw can function instead of the catch claw. Thereby, even when the winding body is loaded in the winding device in a direction opposite to the normal direction, the yarn can be normally caught. That is, it is not necessary to consider the orientation of the connecting member when loading the connecting member in the take-up device. Therefore, it is possible to reduce the labor and time required to consider the orientation of the connecting member.

A connecting member according to a fifth invention is characterized in that, in the above fourth invention, the backup catching claw is disposed at a position different from the catching claw in the circumferential direction.

When all or part of the backup catch claws in the circumferential direction are arranged at positions overlapping with the catch claws, there is a possibility that the size of the base portion increases in the axial direction. If the catch claw and the backup catch claw are axially reduced in order to avoid this, there is a risk of failure to catch and/or hold the yarn. In the present invention, compared with the case where all or a part of the backup catch claws in the circumferential direction are arranged at positions overlapping with the catch claws, it is possible to suppress an increase in the size of the base portion in the axial direction, and at the same time, it is possible to form larger catch claws and Backup catch claw. Therefore, it is possible to achieve both "suppression of increase in size of the connecting member" and "suppression of failure to catch and/or hold the yarn".

A connecting member according to a sixth invention is characterized in that, in any one of the above-mentioned first to fifth inventions, the guide surface and the catch claw are arranged closer to the outermost ends in the radial direction of the pair of stoppers. radially inward of the above.

If the guide surface and/or the catch claws are arranged radially outward of the blocking portion, the guide surface and/or the catch claws may protrude radially outside of the two bobbins. In such a case, for example, in a device for winding, it may become difficult to handle the winding in the same way as a single long winding bobbin. In the present invention, the guide surface and the catch claw are disposed radially inward of the radially outer end of the blocking portion. Therefore, by loading two winding bobbins with an outer diameter larger than that of the pair of stoppers on the connecting member, the winding body can be handled in the same way as a single winding bobbin.

In the connection member of the seventh invention, in the sixth invention, one of the pair of stoppers has an inclined surface formed to be connected to the guide surface and to be closer to the outer diameter of the guide surface in the axial direction. become smaller.

In the present invention, the running yarn can be smoothly guided to the guide surface by the inclined surface.

The yarn hanging method of the eighth invention is a yarn hanging method of hanging a plurality of traveling yarns on a take-up body having the connecting member and the loading device according to any one of the above-mentioned first to seventh inventions. The two winding bobbins on the connecting member are characterized in that one of the plurality of yarns is guided inwardly in the radial direction by the guide surface while the winding body is rotated, Make it be caught by the above-mentioned catch claw.

In the present invention, by catching the yarn by the catching claws, the yarn can be reliably caught and held without slack. Therefore, the success rate of yarn hanging can be improved.

Description of drawings

Fig. 1 is a side view of a false twist processing machine provided with a coiling device according to the present embodiment.

Fig. 2 is a schematic diagram of a false twist processing machine developed along a yarn path.

(a) of FIG. 3 is an explanatory diagram showing a single winding bobbin and its surrounding structure, and (b) is an explanatory diagram showing a winding body having two winding bobbins and its surrounding structure.

(a) and (b) of Fig. 4 are schematic diagrams of the yarn hanging device and its surroundings.

(a) to (c) of Fig. 5 are explanatory diagrams showing the operation of the yarn hooking device when the yarn is hooked to the winding bobbin.

Fig. 6 is a perspective view of a base portion of a connecting member.

Fig. 7 is a view taken along the line VII of Fig. 6, when the base portion is viewed from a direction perpendicular to the axial direction.

Fig. 8 is a view in the direction of VIII in Fig. 6, when the base portion is viewed from a direction perpendicular to the axial direction.

(a) of FIG. 9 is a partial enlarged view of FIG. 7 , and (b) is a partial enlarged view of FIG. 8 .

(a) of FIG. 10 is a sectional view taken along line X(a)-X(a) of FIG. 8, and (b) is a sectional view taken along line X(b)-X(b) of FIG. 8 .

(a) to (c) of Fig. 11 are explanatory views showing how the catching claws catch the yarn.

(a) to (c) of Fig. 12 are explanatory views showing how the catching claw catches and holds the yarn.

Explanation of reference signs

1—false twist processing machine; 21—coiling device; 60—connecting parts; 61—base portion; 62 loading portion; 66—blocking portion; 68a—inclined surface; 71—guiding seam; Surface; 74—opposite surface; 76—accepting surface; 77—protrusion; 82—backup catch claw; 83—backup guide surface; 100—coiling body; B1—coiling bobbin; B2—coiling bobbin; P1—coiling package; P2—coiling package; Y—yarn; Ya—yarn; Yb—yarn

Detailed ways

Next, an embodiment of the present invention will be described. The vertical direction of the paper in Fig. 1 is taken as the longitudinal direction of the machine body, and the left-right direction of the paper is taken as the transverse width direction of the machine body. The direction perpendicular to both the longitudinal direction of the body and the lateral width direction of the body is taken as the up-down direction (vertical direction) of gravity.

(Overall structure of false twist processing machine)

First, the overall structure of a false twist processing machine 1 including a coiling device 21 (described later) according to this embodiment will be described with reference to FIGS. 1 and 2 . FIG. 1 is a side view of a false twist processing machine 1 . Fig. 2 is a schematic view of the false twist processing machine 1 developed along the path (yarn path) of the yarn Y.

The false twist processing machine 1 is configured to be capable of false twist processing a yarn Y made of synthetic fibers. The false twist processing machine 1 includes a yarn supply unit 2 , a processing unit 3 and a take-up unit 4 . The yarn supply unit 2 is configured to be able to supply the yarn Y. The processing section 3 is configured to draw out the yarn Y from the yarn supplying section 2 and perform false twist processing. The winding unit 4 is configured to wind the yarn Y processed by the processing unit 3 onto the winding bobbin B1 or the winding body 100 (see FIG. 1 , FIG. 2 and FIG. 3(b). Details will be described later). . In the longitudinal direction of the body perpendicular to the yarn running surface (paper surface of FIG. 1 ) on which the yarn path from the yarn supplying part 2 passes through the processing part 3 to the winding part 4 is arranged, the yarn supplying part 2, the processing part 3 and the A plurality of components included in the winding unit 4 are arranged (see FIG. 2 ).

The yarn supply unit 2 has a creel holder 7 holding a plurality of yarn supply packages Ps, and supplies a plurality of yarns Y to the processing unit 3 . The processing section 3 is configured to draw out a plurality of yarns Y from the yarn supplying section 2 and process them. The processing section 3 is arranged sequentially from the upstream side of the yarn traveling direction with the first yarn feeding roller 11, the anti-twist yarn guide 12, the first heating device 13, the cooling device 14, the false twisting device 15, and the second yarn feeding roller. The structure of the roller 16, the doubling device 17, the third yarn feeding roller 18, the second heating device 19 and the fourth yarn feeding roller 20. The winding unit 4 has a plurality of winding devices 21 . Each winding device 21 winds the yarn Y subjected to false twisting in the processing section 3 onto the winding bobbin B1 or the winding body 100 to form one or more winding packages Pw.

The false twist processing machine 1 has a main body 8 and a winding table 9 arranged at intervals in the machine width direction. The main body 8 and the coiling platform 9 are arranged to extend approximately the same length along the longitudinal direction of the body. The main body 8 and the take-up table 9 are arranged to face each other in the width direction of the body. The false twist processing machine 1 includes a set of a main body 8 and a winding table 9, and has a set unit called a "span". In one span, each device is arranged so as to be able to simultaneously perform false twist processing on a plurality of yarns Y running in a state aligned in the longitudinal direction of the machine body. In the false twisting machine 1, the spans are symmetrically arranged on the left and right sides of the paper with the center line C in the lateral width direction of the main body 8 as a symmetric axis (the main body 8 is a common member for the left and right spans). Moreover, a plurality of spans are arranged along the longitudinal direction of the body.

(Structure of processing department)

The configuration of the processing unit 3 will be described with reference to FIGS. 1 and 2 . The first yarn supplying roller 11 is configured to unwind the yarn Y from the yarn supplying package Ps mounted on the yarn supplying unit 2 and convey it to the first heating device 13 . The first yarn supplying roller 11 is configured to be able to convey, for example, two yarns Y to the first heating device 13, but is not limited thereto. The anti-twist yarn guide 12 is configured so that the twist applied to the yarn Y by the false twist device 15 does not propagate to the upstream side of the anti-twist yarn guide 12 in the yarn traveling direction. The first heating device 13 is configured to heat the yarn Y sent from the first yarn supplying roller 11 . For example, as shown in FIG. 2 , the first heating device 13 is configured to be capable of heating four yarns Y, but the present invention is not limited thereto. The cooling device 14 is configured to cool the yarn Y heated by the first heating device 13 . For example, as shown in FIG. 2 , the cooling device 14 is configured to be capable of cooling four yarns Y, but the present invention is not limited thereto. The false twisting device 15 is arranged on the downstream side of the cooling device 14 in the yarn traveling direction, and is configured to impart twist to the yarn Y. The false twist device 15 is, for example, a so-called disc friction type false twist device, but is not limited thereto. The second yarn supplying roller 16 is configured to convey the yarn Y processed by the false twisting device 15 to the doubling device 17 . The speed at which the yarn Y is conveyed by the second yarn supplying roller 16 is faster than the speed at which the yarn Y is conveyed by the first yarn supplying roller 11 . Thus, the yarn Y is stretched between the first yarn supplying roller 11 and the second yarn supplying roller 16 .

The doubling device 17 is configured to be able to doubling the yarn Ya and the yarn Yb to form the yarn Yc. The doubling device 17 is capable of doubling, for example, the yarn Ya processed by a certain false twist device 15 and the yarn Yb processed by the false twist device 15 disposed adjacent to the false twist device 15 . The doubling device 17 has two interlacing nozzles 31 and 32 (see FIG. 2 ). The yarn doubling device 17, for example, injects air on the yarn Ya and the yarn Yb (see the left side of the paper in FIG. 2 ) passing through the intermingling nozzle 31, and the yarn Ya and the yarn Yb are entangled by the air flow. (Entangling) Doubling is performed to form a yarn Yc. The doubling device 17 may not doubling the yarn Ya and the yarn Yb, but may directly guide the two yarns Y to the downstream side in the yarn traveling direction. In this case, the yarn Ya passes through the intertwining nozzle 31, and the yarn Yb passes through the interlacing nozzle 32 (see the right side of the page in FIG. 2).

The third yarn supplying roller 18 is configured to convey the yarn Y traveling downstream of the yarn doubling device 17 in the yarn traveling direction to the second heating device 19 . For example, as shown in FIG. 2, the third yarn supplying roller 18 is configured to be able to convey the two yarns Y to the second heating device 19, but the present invention is not limited thereto. In addition, the speed at which the yarn Y is conveyed by the third yarn supplying roller 18 is slower than the speed at which the yarn Y is conveyed by the second yarn supplying roller 16 . Therefore, the yarn Y becomes loose between the second yarn supplying roller 16 and the third yarn supplying roller 18 . The second heating device 19 is configured to heat the yarn Y fed from the third yarn supplying roller 18 . The second heating device 19 extends vertically, and one is provided for each span. The fourth yarn supplying roller 20 is configured to convey the yarn Y heated by the second heating device 19 to the winding device 21 . For example, as shown in FIG. 2 , the fourth yarn supplying roller 20 is configured to be able to convey the two yarns Y to the winding device 21, but the present invention is not limited thereto. The speed at which the yarn Y is conveyed by the fourth yarn supplying roller 20 is slower than the speed at which the yarn Y is conveyed by the third yarn supplying roller 18 . Therefore, the yarn Y is loosened between the third yarn supplying roller 18 and the fourth yarn supplying roller 20 .

In the processing section 3 configured as described above, the yarn Y stretched between the first yarn supplying roller 11 and the second yarn supplying roller 16 is twisted by the false twisting device 15 . The twist formed by the false twist device 15 propagates up to the anti-twist yarn guide 12, but does not propagate to the upstream side of the anti-twist yarn guide 12 in the yarn traveling direction. The stretched and twisted yarn Y is heated and heat-set by the first heating device 13 , and then cooled by the cooling device 14 . The yarn Y is untwisted on the downstream side of the false twisting device 15 in the yarn traveling direction, but the yarn Y is maintained in a state where the yarn Y is false twisted into a wave shape by the above-mentioned heat setting. After the two yarns Y (yarn Ya and Yb) to which the false twist has been applied are loosened between the second yarn supply roller 16 and the third yarn supply roller 18, and are doubled by the yarn doubling device 17, Alternatively, the yarn is directly guided to the downstream side in the yarn traveling direction without being doubled. Then, the yarn Y is heat-set by the second heating device 19 while being relaxed between the third yarn supplying roller 18 and the fourth yarn supplying roller 20 . Finally, the yarn Y (yarn Yc or yarns Ya, Yb) sent from the fourth yarn supplying roller 20 is taken up by the take-up device 21 . Thus, one wound package P1 or two wound packages P2 are formed in each winding device 21 .

(Structure of take-up section)

The configuration of the winding unit 4 will be described with reference to FIG. 2 and (a) and (b) of FIG. 3 . (a) of FIG. 3 is an explanatory view showing the structure of the individual winding bobbin Bw and its surroundings. (b) of FIG. 3 is an explanatory view showing a winding body 100 having a plurality of winding bobbins Bw (winding bobbins B2 ) and a connecting member 60 described later, and its peripheral structure. The winding unit 4 has a plurality of winding devices 21 . Each winding device 21 is configured to be capable of winding the yarn Y onto one or two winding bobbins Bw as described in, for example, Japanese Patent Laid-Open No. 2013-35640. That is, each winding device 21 can select an individual mode or a majority mode as an operation mode. The so-called individual mode is an operation mode for winding one yarn Yc onto one winding bobbin Bw (winding bobbin B1 ). The majority mode is an operation mode for winding two yarns Ya, Yb onto two winding bobbins Bw (winding bobbins B2). The winding device 21 has a fulcrum guide 41 serving as a fulcrum for traversing the yarn Y, a traversing device 42 for traversing the yarn Y, a separate cradle 43 for freely rotating the winding bobbin Bw, and a control arm. part 44 (refer to FIG. 1). Moreover, instead of the control part 44, you may provide the control apparatus (not shown) which controls the several winding apparatuses 21, for example.

As described above, the fulcrum guide 41 serves as a fulcrum when the yarn Y traverses. For example, three fulcrum guides 41 are provided on each winding device 21 so as to line up along the body longitudinal direction (see FIG. 2 ). For example, in the case of guiding the yarn Y that has been doubled by the doubling device 17 to become one yarn Y, the yarn Y is caught on the fulcrum yarn guide 41 arranged in the center among the three fulcrum yarn guides (exhibitor The left part of the paper in Figure 2). And, in the case of guiding two yarns Y sent directly without doubling, the yarns Y are respectively hung on the two fulcrum guides 41 at both ends of the three fulcrum guides 41 (refer to The right part of the paper in Figure 2).

The traverse device 42 is configured to traverse the yarn Y by, for example, a traverse guide 45 attached to an endless belt (not shown) reciprocated by a motor (not shown). The number of traverse guides 45 attached to the endless belt can be changed according to the number of traversed yarns Y. For example, one traverse guide 45 is provided in the traverse device 42 that traverses the single yarn Y doubled by the doubling device 17 (see the left side of the drawing in FIG. 2 ). In addition, two traverse guides 45 are provided in the traverse device 42 for traversing the two yarns Y fed directly without being doubled (see the right side of the paper in FIG. 2 ). The moving range of the traverse guide 45 can be changed according to the number of traversed yarns Y. Information on setting the number of yarns Y to be traversed and the movement range of the traverse guide 45 is stored in the control unit 44, for example.

The cradle 43 is configured as a single winding bobbin Bw (winding bobbin B1; refer to FIG. 3( a )) for winding the yarn Yc or a winding body 100 for winding the yarns Ya and Yb. (Refer to (b) of FIG. 3 ) It is supported so as to be freely rotatable. Here, the outline of the winding body 100 is demonstrated. The winding body 100 has two winding bobbins Bw (winding bobbins B2 ) and a connecting member 60 . In the axial direction of the winding bobbin Bw mounted on the cradle 43 (hereinafter simply referred to as the axial direction), the length of each winding bobbin B2 is less than half the length of the winding bobbin B1. The outer diameter and inner diameter of the take-up bobbin B2 are substantially equal to the outer diameter and inner diameter of the take-up bobbin B1.

The connecting member 60 is, for example, a member made of resin. The connecting member 60 is configured to align and connect two winding bobbins B2 in the axial direction. The connecting member 60 has a base portion 61 and a pair of mounting portions 62 (first mounting portion 63 and second mounting portion 64 ) arranged on both sides in the axial direction of the base portion 61 . The base portion 61 is arranged at the central portion of the connection member 60 in the axial direction. The base part 61 is arranged so as to be sandwiched between two winding bobbins B2 (winding bobbins B2a, B2b) in the axial direction. For convenience of description, the right side of the paper in (a) and (b) of FIG. 3 is taken as one side in the axial direction, and the left side of the paper is taken as the other side in the axial direction. For example, the first mounting portion 63 is arranged on one side of the base portion 61 in the axial direction. The second mounting portion 64 is arranged on the other side of the base portion 61 in the axial direction. The first loading unit 63 and the second loading unit 64 are respectively configured so as to be able to be inserted into the winding bobbin B2. Thus, the winding body 100 is formed by loading (fixing) the two winding bobbins B2 on the first loading portion 63 and the second loading portion 64, respectively. In the axial direction, the length of the winding body 100 is substantially equal to the length of the individual winding bobbin B1. More details of the connecting member 60 will be described later.

The cradle 43 is configured so that the winding bobbin B1 can be detached, and the winding body 100 can be detached. As shown in (a) and (b) of FIG. 3 , the cradle 43 has a pair of bobbin holders 47 (bobbin holders 47a, 47b ) arranged to hold the take-up bobbin B1 or the take-up body 100 . The bobbin holders 47a, 47b are rotatably supported by the pair of arm portions 43a, 43b of the cradle 43, respectively. Each bobbin holder 47 has an insertion portion 48 inserted into the winding bobbin B1 or B2 and a pressing portion 49 pressing the insertion portion 48 in the axial direction. The pressing portion 49 is a portion having a larger diameter than the winding bobbin B1 and the winding bobbin B2. The pressing portion 49 is biased toward the side pressing the winding bobbin B1 (or winding bobbin B2 ) in the axial direction by, for example, a spring not shown. On the pressing portion 49 on the axially upper side, there is formed a notch (not shown) for guiding the yarn Y radially inward during the yarn hanging operation described later (see, for example, Japanese Patent Laid-Open No. 2013 -35640" bulletin).

In the vicinity of the cradle 43, a touch roller 46 is arranged. The contact roller 46 and the yarn Y are wound up on the individual winding bobbin B1 (see FIG. 3( a )) to form the individual winding package P1, or the yarn Y is wound on two winding bobbins. The surfaces of the two wound packages P2 formed by the tube B2 (see (b) of FIG. 3 ) are in contact with each other, and a contact pressure is applied thereto. The touch roller 46 has a substantially cylindrical shape that is substantially uniform with respect to the axial outer diameter. The contact roller 46 can apply a contact pressure to any of the single wound package P1 and the two wound packages P2 (the reason will be described later). That is, the touch roll 46 is a common roll that can be used when forming either the single wound package P1 or the two wound packages P2.

The take-up bobbin B1 or the take-up body 100 supported by the cradle 43 is rotationally driven by, for example, a motor not shown. In such a structure, the contact roller 46 in contact with the surface of the take-up package P1 or the take-up package P2 is driven to rotate by friction while applying a contact pressure to the take-up package P1 (or the take-up package P2) . Alternatively, instead of rotating the winding bobbin B1 or the winding body 100 by a motor, the touch roller 46 may be rotationally driven by a motor not shown. In such a structure, the winding package P1 (or winding package P2) which contacts the touch roller 46 is driven to rotate by friction.

The control unit 44 controls the operation of the traverse device 42 and the operation of a motor that rotationally drives the winding bobbin B1 (or the winding body 100 ). The control unit 44 is configured such that the settings related to the quantity of the yarn Y wound into the winding device 21 can be changed. That is, the control unit 44 enables the operation mode to be an individual mode in which one yarn Y is wound on the individual winding bobbin B1 (see the left side of the paper in FIG. 2 ), and an operation mode in which two yarns Y are wound separately. Switch between the majority of modes taken onto the two take-up bobbins B2 (see the right part of the paper in FIG. 2 ).

In the winding section 4 configured as described above, the yarn Y sent from the fourth yarn supplying roller 20 is wound onto the winding bobbin B1 (or winding bobbin B2) by each winding device 21. , forming a coiled package P1 (or coiled package P2). When the two yarns Y are paralleled by the doubling device 17, the operation mode of the corresponding winding device 21 is set to the single mode. Furthermore, when the two yarns Y are not paralleled but are directly guided downstream in the yarn traveling direction, the operation mode of the corresponding winding device 21 is set to the majority mode. The configuration in the case of executing the majority mode will be mainly described below.

(yarn hanging device)

In this embodiment, a yarn hanging device 50 is provided near the winding device 21 (see (a) and (b) of FIG. 4 and (a) to (c) of FIG. 5 ). (a) of FIG. 4 is a view of the yarn hanging device 50 viewed from above. (b) of FIG. 4 is a view of the yarn hanging device 50 viewed from one side in the axial direction. (a) to (c) of Fig. 5 are explanatory views showing the operation of the yarn hooking device 50 when the yarn is hooked to the winding bobbin B2.

The yarn hanging device 50 is configured to end the winding of the yarn Y to the winding body 100 mounted on the cradle 43 and to perform the yarn hanging to the winding body 100 newly mounted on the cradle 43 . The yarn hanging device 50 is configured to be able to hang the yarn Y on each of the two winding bobbins B2. An example of the yarn hanging device 50 will be described below. The yarn hanging device 50 has two yarn hanging parts 51 (yarn hanging parts 51a, 51b) arranged in parallel in the axial direction. The yarn hooking portion 51a is configured to hang the yarn Y (yarn Ya) on one side in the axial direction on the winding bobbin B2 (winding bobbin B2a ) on one side in the axial direction. The yarn hooking portion 51b is configured to hook the yarn Y (yarn Yb) on the other axial side to the winding bobbin B2 (winding bobbin B2b ) on the other axial side. As shown in (a) and (b) of FIG. (Refer to (a) of FIG. 4). Each yarn hooking section 51 is configured to be able to perform an operation to finish winding the yarn Y onto the winding bobbin B2 and to execute a yarn hooking operation to a new winding bobbin B2.

The suction nozzle 52 is used to temporarily suck and hold the false-twist processed yarn Y in the processed portion 3 during the period from the end of winding the yarn Y to a certain winding body 100 to the completion of the yarn hanging on the next winding body 100 . components of the advancing yarn Y. The suction nozzle 52 is disposed outside a region where the yarn Y is traversed by the traverse guide 45 (see the yarn Y shown by a solid line and a two-dot chain line in (a) of FIG. 4 ). Each suction nozzle 52 is arranged outside (in this embodiment, one side in the axial direction) of the range where the yarn Y wound on the corresponding winding bobbin B2 is traversed. The yarn pulling lever 53 is configured to move the yarn Y traversed by the traverse guide 45 to one side in the axial direction. The yarn lever 53 is rotatable around a rotation shaft 53a extending in a direction substantially perpendicular to the axial direction. In the vicinity of the rotation shaft 53a, a guide member 58 capable of guiding the yarn Y to the vicinity of the inlet of the suction nozzle 52 is provided. The yarn shifting lever 53 enables the state to be between a retracted position extending in the axial direction (see, for example, FIG. change. The yarn arrangement lever 54 is configured so that the yarn Y sucked and held by the suction nozzle 52 is positioned substantially directly above the winding body 100 (see, for example, FIG. 5( c )). The yarn arrangement lever 54 of the yarn hooking part 51a and the yarn arrangement lever 54 of the yarn hooking part 51b are configured to be integrally rotatable around a rotation shaft 54a extending in the axial direction. The yarn pressing lever 55 is configured to press the yarn Y against the outer peripheral portion of the winding body 100 . The yarn pressing lever 55 of the yarn hooking part 51a and the yarn pressing lever 55 of the yarn hooking part 51b are configured to be integrally rotatable around a rotation shaft 55a extending in the axial direction. The yarn holding lever 56 is configured to sandwich and hold the yarn Y with the yarn pressing lever 55 . The yarn holding lever 56 is configured to be rotatable integrally with the yarn arrangement lever 54 . The cutter 57 is configured to cut the yarn Y moved to one side in the axial direction by the yarn pulling lever 53 . For more details of these components, please refer to, for example, Japanese Patent Application Laid-Open No. 2013-23385.

The yarn hanging operation performed by the yarn hanging device 50 will be briefly described with reference to (a) to (c) of Fig. 5 . For example, the yarn Y is wound onto two winding bobbins B2 of the winding body 100 mounted on the cradle 43 to form two winding packages P2 (see FIG. 5( a )). At this time, the yarn Y is moved to one side in the axial direction while being guided along the guide member 58 by the rotation of the yarn pulling lever 53 from the withdrawn position to the yarn pulling position. As a result, the yarn Y leaves the traverse guide 45 and is cut by the cutter 57 . Thus, the winding of the yarn Y to the winding body 100 mounted on the cradle 43 ends. Almost at the same time, the yarn Y upstream of the cutter 57 in the yarn traveling direction is sucked and caught by the suction nozzle 52 (see FIG. 5( b )). In addition, after the yarn Y is sucked and caught by the suction nozzle 52, the yarn pulling lever 53 returns to the withdrawn position. Next, the fully wound winding package P2 is removed from the cradle 43 by using, for example, an automatic doffing device not shown, and the winding body 100 having a new empty winding bobbin B2 is loaded on the cradle 43. .

Next, the yarn arrangement lever 54 is rotated upward while the yarn Y is sucked and held by the suction nozzle 52 (see FIG. 5( c )). Thus, the yarn Y is disposed substantially directly above the winding body 100 . In addition, at this time, the yarn holding lever 56 also rotates integrally with the yarn arrangement lever 54 (see (c) of FIG. 5 ). And, by the rotation of the yarn pressing lever 55, the yarn Y located between the yarn arrangement lever 54 and the suction nozzle 52 in the yarn traveling direction is pressed against the rotating winding bobbin B2 and its vicinity (see FIG. 5(c) and Fig. 3(b)). More specifically, the yarn Y (yarn Ya) on one side in the axial direction is guided radially inward along a cutout (not shown) formed in the pressing portion 49 of the bobbin holder 47, and is held at the Between the axial end surface of one side of the winding bobbin B2a and the pressing part 49 . Thereby, the yarn Ya can be wound up on the winding bobbin B2a. The yarn Y (yarn Yb) on the other side in the axial direction is caught by the connecting member 60 as will be described later, and can be wound up on the rotating winding bobbin B2b.

In addition, at least a part of the components of the yarn hanging unit 51b may be detachable from the yarn hanging device 50 . Thus, when the operation mode of the winding device 21 is switched from the multiple mode to the individual mode, at least a part of the components of the yarn hanging part 51b can be removed from the yarn hanging device 50, and only the yarn hanging part 51a is used for 1 Hanging yarn of root yarn Y. Alternatively, the entire yarn hanging device 50 may be replaced with a dedicated yarn hanging device (not shown) for the individual mode. In addition, the above-mentioned yarn hanging operation may be performed by an operator instead of the yarn hanging device 50 .

Here, the conventional connecting member (not shown) is configured to catch the yarn Yb between the gap formed between the connecting member and the winding bobbin B2b. However, in recent years, since it is possible to manufacture a thinner yarn Y than before, the following problems have emerged. That is, even if the thin yarn Y is caught in the gap between the conventional connecting member and the winding bobbin B2b, it is difficult to be firmly held in the gap, and it is easy to fall out of the gap. In such a situation, there is a possibility that the traveling yarn Y becomes an unstable state in which the yarn Y becomes tense and loosens suddenly. If the slack in the yarn Y propagates to the upstream side in the yarn running direction, the yarn Y arranged on the upstream side in the yarn running direction may not run normally. In addition, the thin yarn Y itself cannot be caught in the gap between the winding bobbin B2b and the conventional connecting member, and there is a possibility that the yarn hooking may fail. In the present embodiment, in order to securely catch the yarn Y without slack, the connecting member 60 has a structure described later. In addition, when the yarn Y is caught in the gap between the winding bobbin B2a and the bobbin holder 47, such a problem does not occur. After research, the inventors of the present application found that this may be related to the yarn Y being caught by the slit of the above-mentioned bobbin holder 47 .

(Detailed structure of connecting parts)

Next, the detailed structure of the connection member 60 (particularly, the detailed structure of the base part 61) is demonstrated with reference to FIGS. 6-10(b). FIG. 6 is a perspective view of the base portion 61 . FIG. 7 is a view taken along the line VII of FIG. 6 , when the base portion 61 is viewed from a direction perpendicular to the axial direction. FIG. 8 is a view taken along the line VIII of FIG. 6 , when the base portion 61 is viewed from a direction perpendicular to the axial direction. (a) of FIG. 9 is a partially enlarged view of the base portion 61 shown in FIG. 7 . (b) of FIG. 9 is a partially enlarged view of the base portion 61 shown in FIG. 8 . (a) of FIG. 10 is a sectional view taken along line X(a)-X(a) of FIG. 8 . (b) of FIG. 10 is a sectional view taken along line X(b)-X(b) of FIG. 8 . In FIGS. 6 to 8 , the base portion 61 is represented by a solid line, the mounting portion 62 (first mounting portion 63 and second mounting portion 64 ) is represented by a dotted line, and the winding bobbins B2a and B2b are represented by dashed-two dotted lines.

In FIGS. 7 and 8 , the first mounting portion 63 is disposed on one axial side of the base portion 61 (the right side of the drawing), and the second mounting portion 64 is disposed on the other axial side of the base portion 61 (the right side of the drawing). face left). For convenience of description, such an orientation of the connecting member 60 is referred to as a “normal orientation” of the connecting member 60 . In addition, for convenience of description, when the connecting member 60 is arranged in a normal orientation, the counterclockwise direction when the connecting member 60 is viewed from one side in the axial direction is regarded as one side in the circumferential direction (see (a) of FIG. 10 ). . Similarly, let the clockwise direction be the other side in the circumferential direction (see (a) of FIG. 10 ). In addition, as a reference, since FIG. 10(b) is a cross-sectional view of the connecting member 60 viewed from the other side in the axial direction, in FIG. 10(b), the clockwise direction is the circumferential side, and the counterclockwise direction for the other side of the circumference.

The base portion 61 is generally a disk-shaped portion as a whole. The base portion 61 is smaller in the radial direction than the winding bobbins B2a, B2b. That is, the base portion 61 is accommodated inside the winding bobbins B2a and B2b in the radial direction.

As shown in (a) of FIGS. 6 to 10 , the base portion 61 has a pair of stoppers 66 , a guide slit 71 (see (b) of FIGS. 7 to 10 ), and a catch claw 72 . The base portion 61 is configured so that the traveling yarn Y (yarn Yb) can be guided radially inward by the guide slit 71 when the connecting member 60 is arranged in the normal orientation, and can be guided by the catching claw 72 to the inner side in the radial direction. Capture yarn Yb.

The pair of stoppers 66 (stoppers 67 and 68 ) are configured to restrict movement of the winding bobbin B2 in the axial direction. The stopper portion 67 is formed on one end portion of the base portion 61 in the axial direction. The stopper portion 67 is located radially outward from the end portion on the other axial side of the first loading portion 63 . The blocking portion 67 has an inclined surface 67a. The inclined surface 67 a has, for example, a substantially truncated cone shape, and its outer diameter becomes smaller toward the other side in the axial direction (that is, the farther it is from the one axial end of the base portion 61 ). A stopper portion 68 (one of a pair of stopper portions in the present invention) is formed on the end portion on the other side in the axial direction of the base portion 61 . The stopper portion 68 is located radially outward from the axially upper end portion of the second loading portion 64 . The blocking portion 68 has an inclined surface 68a. The inclined surface 68a has, for example, a substantially truncated conical shape, and its outer diameter becomes smaller toward one side in the axial direction (that is, the farther it is from the end portion of the other axial side of the base portion 61 and the closer it is to the guide surface 73 described later). smaller. In addition, the inclined surface 67a and the inclined surface 68a are, for example, linear when viewed from a direction perpendicular to the axial direction (see FIGS. 7 and 8 ), but are not limited thereto. The inclined surface 67a and/or the inclined surface 68a may have, for example, a curved surface that is curved when viewed from a direction perpendicular to the axial direction.

The guide slit 71 (see (b) of FIGS. 7 to 10 ) is a slit for guiding the yarn Yb radially inward. The guide slit 71 is formed on the inner side (approximately central portion) of the base portion 61 in the axial direction. More specifically, the guide slit 71 is arranged between the stopper portion 67 and the stopper portion 68 in the axial direction (see FIG. 8 to FIG. 9( b )). The guide slot 71 has a guide surface 73 and an opposing surface 74 . The guide surface 73 faces at least one side in the axial direction. The guide surface 73 is formed in a substantially "L" shape, for example. In more detail, for example, as shown in (a) of FIG. 10 , the radially outer portion of the guide surface 73 extends in the circumferential direction. The radially outer portion of the guide surface 73 has a gap on one side in the circumferential direction from the bottom surface portion 75 in the radial direction. The other circumferential side portion of the guide surface 73 extends from the radially outer side to the radially inner side, and is connected to the other circumferential side portion of the bottom surface portion 75 . The guide surface 73 is formed on a part in the circumferential direction. The guide surface 73 is connected to the inclined surface 68a, and is arranged inside the inclined surface 68a in the radial direction (see FIG. 10( a )). In other words, the guide surface 73 is disposed radially inward of the radially outermost end portions of the pair of stopper portions 66 . The guide surface 73 is formed to extend radially inward of the catch claw 72 . The opposing surface 74 is disposed so as to face the other side in the axial direction and face the guide surface 73 in the axial direction (see FIG. 8 and FIG. 9( b )). The facing surface 74 is formed in a substantially crescent shape (see (b) of FIG. 10 ). The opposing surface 74 is connected to the inclined surface 67a, and is arranged inside the inclined surface 67a in the radial direction (see (b) of FIG. 10 ). Between the guide surface 73 and the opposing surface 74 in the axial direction, a bottom surface portion 75 connecting the radially inner end portion of the guide surface 73 and the radially inner end portion of the opposing surface 74 is formed. The bottom surface portion 75 faces at least radially outward. When viewed from the axial direction, the bottom surface portion 75 has a substantially linear shape. The bottom portion 75 may also have a substantially linear shape. Alternatively, the bottom portion 75 may be slightly curved at both ends as shown in (a) and (b) of FIG. 10 .

The catching claw 72 is configured to catch the yarn Yb guided radially inward by the guide surface 73 . As shown in FIGS. 7 to 9 , the catch claw 72 is arranged on the other side of the guide surface 73 in the axial direction, for example. The catch claw 72 is arranged, for example, at a position at least partially overlapping the blocking portion 68 in the axial direction. The catch claw 72 is arranged, for example, at a position of one end portion of the guide surface 73 in the circumferential direction. The catch claw 72 has, for example, a receiving surface 76 and a protrusion 77 . The receiving surface 76 is configured to receive the running yarn Yb. The receiving surface 76 faces at least one side in the circumferential direction, for example. The protruding portion 77 is configured to prevent the yarn Yb received by the receiving surface 76 from falling off from the receiving surface 76 . The protruding portion 77 is, for example, a protrusion protruding toward one side in the circumferential direction than the receiving surface 76 . The protruding portion 77 is arranged on one side in the axial direction of the receiving surface 76 . The protruding portion 77 has, for example, a substantially planar side surface 77 a facing the other side in the axial direction and one side in the circumferential direction (see (a) and (b) of FIG. 9 ).

In addition, the base part 61 is configured so that even when the connection member 60 is arranged in a direction opposite to the normal orientation (that is, an orientation in which the connection member 60 is rotated by 180° from the normal orientation in a plane parallel to the axial direction), , can also catch the yarn Yb. As shown in FIG. 8 and (b) of FIG. 10 , the base portion 61 has a backup guide slit 81 and a backup catch claw 82 . The backup guide slit 81 and the backup catch claw 82 are arranged at positions different from those of the guide slit 71 and the catch claw 72 in the circumferential direction. More specifically, the backup guide slit 81 and the backup catch claw 82 are disposed approximately 180° from the position where the guide slit 71 and the catch claw 72 are formed in the circumferential direction (see (a) and (b) of FIG. 10 ). The backup guide slit 81 and the backup catch claw 82 are formed so as to be symmetrical with the guide slit 71 and the catch claw 72 with the axial and radial centers of the base portion 61 as a point of symmetry when viewed from a predetermined direction perpendicular to the axial direction. Symmetrical (see Figure 8).

The backup guide slit 81 has substantially the same shape as the guide slit 71 . The backup guide slit 81 has a backup guide surface 83 having substantially the same shape as the guide surface 73 and a backup facing surface 84 having substantially the same shape as the facing surface 74 . The backup guide surface 83 faces at least the other side in the axial direction. The backup guide surface 83 is connected to the inclined surface 67a, and is arranged on the inner side of the inclined surface 67a in the radial direction (see (b) of FIG. 10 ). In other words, the backup guide surface 83 is also disposed radially inward of the radially outermost end portions of the pair of stopper portions 66 . The backup facing surface 84 is arranged to face at least one side in the axial direction so as to face the backup guide surface 83 in the axial direction. The backup facing surface 84 is connected to the inclined surface 68a, and is arranged on the inner side of the inclined surface 68a in the radial direction (see FIG. 10( a )). Between the backup guide surface 83 and the backup opposing surface 84 in the axial direction, a bottom surface portion 85 (see FIG. 8). The shape of the bottom portion 85 is substantially the same as that of the bottom portion 75 .

The backup catch claw 82 has substantially the same shape as the catch claw 72 . As shown in FIG. 8 , the backup catch claw 82 is arranged on, for example, one side of the backup guide surface 83 in the axial direction. The backup catch claw 82 is arranged, for example, at a position at least partially overlapping the blocking portion 67 in the axial direction. The backup catch claw 82 is arranged, for example, at the position of the other end portion of the backup guide surface 83 in the circumferential direction. The backup catch claw 82 has, for example, a backup receiving surface 86 having substantially the same shape as the receiving surface 76 and a backup protrusion 87 having substantially the same shape as the protrusion 77 . The backup receiving surface 86 faces at least the other side in the circumferential direction, for example. The backup protrusion 87 is, for example, a projection that protrudes to the other side in the circumferential direction than the backup receiving surface 86 . The backup protrusion 87 is arranged on the other side in the axial direction of the backup receiving surface 86 .

As shown in (a) and (b) of FIG. 10 , an outer peripheral surface 91 disposed, for example, radially outward from the bottom surface portion 75 is connected to one circumferential end portion of the bottom surface portion 75 . An outer peripheral surface 92 arranged, for example, on the radially outer side of the bottom surface portion 75 is connected to the other end portion in the circumferential direction of the bottom surface portion 75 . The outer peripheral surfaces 91 and 92 are substantially arc-shaped when viewed from the axial direction. The outer peripheral surface 91 is connected to the other peripheral end portion of the bottom surface portion 85 . The outer peripheral surface 92 is connected to one circumferential end of the bottom surface portion 85 . Bottom surface parts 75 , 85 and outer peripheral surfaces 91 , 92 are formed at substantially the central part in the axial direction of base part 61 . An inclined surface 67 a is connected to one axial end of the outer peripheral surfaces 91 , 92 (see (a) and (b) of FIG. 9 ). The inclined surface 68a is connected to the end portion on the other side in the axial direction of the outer peripheral surfaces 91 and 92 (see (a) and (b) of FIG. 9 ).

(How to hang the yarn to the connecting part)

Next, referring to FIG. 11( a ) to FIG. 12( c ), the yarn hooking method of hooking a plurality of yarns Y onto the above-mentioned take-up body 100 will be described in which one of the plurality of yarns Y is Y hangs on the method on the connection part 60. More specifically, when the yarn Y (yarn Yb) is arranged so that it is pressed onto the surface of the winding body 100 by the yarn hanging device 50 (or the operator) (see (b) of FIG. 3 and (c) of FIG. ), the situation where the yarn Yb is caught on the connecting member 60. Here, it is assumed that the connection member 60 is arranged in a normal orientation for description.

When yarn hanging is performed, when viewed from a direction perpendicular to the axial direction (see FIG. The upper and lower directions on the paper) are arranged near the surface of the base portion 61 in a state of being slightly inclined (towards the left and right directions on the paper). And, as described above, the yarn Yb travels toward the suction nozzle 52 (that is, toward the lower side of the paper surface as shown by the dotted arrows in FIGS. 11( a ) to 12 ( c )). Then, the winding body 100 including the connection member 60 rotates to one side in the circumferential direction (see the solid line arrows in FIG. 11( a ) to FIG. 12( c )).

When the running yarn Yb is pressed against the surface of the rotating take-up body 100 (see FIG. , 68a are guided axially and radially inwardly of the base portion 61 (see (a) of FIG. 11 ). When the take-up body 100 rotates further, the yarn Yb guided radially inward by the inclined surfaces 67a and 68a is further guided radially inward along the guide surface 73 (see FIG. 11( b )). When the take-up body 100 rotates further, the catching claw 72 is hooked on the yarn Yb, and the yarn Yb is caught by the catching claw 72 (see FIG. 11( c ) and FIG. 12 ( a )). The yarn Yb caught by the catching claw 72 is received by the receiving surface 76 (see (b) of FIG. 12 ). The yarn Yb received by the receiving surface 76 is prevented from falling off from the receiving surface 76 by the protruding portion 77 (more specifically, the yarn Yb is prevented from falling off to one side in the axial direction and radially outward of the yarn Yb). Thus, the yarn Yb is caught and held by the catching claw 72 . In addition, the yarn Yb immediately after being caught by the catching claw 72 is received only by the receiving surface 76 , and there is a possibility of sliding on the receiving surface 76 . Therefore, the yarn Yb is suppressed from falling into an unstable state of being loosened and tightened by the catch claw 72 .

In addition, the yarn Yb is also guided radially inward by the backup guide slit 81 when the take-up body 100 rotates. However, in the case where the connecting member 60 is configured in the normal orientation, the backup catching claw 82 rotates in the direction opposite to the orientation in which it is hooked onto the yarn Yb. Therefore, the backup catching claw 82 does not accidentally catch the yarn Yb.

Then, as the take-up body 100 continues to rotate (see FIG. 12( c )), the yarn Yb is repeatedly wound around the connecting member 60 several times, and the yarn Yb is firmly held by the connecting member 60 . As a result, the portion of the yarn Yb on the downstream side (the suction nozzle 52 side) of the winding body 100 in the yarn traveling direction is naturally broken due to tension. As described above, the yarn Yb can be wound on the winding bobbin B2b.

In addition, when the connection member 60 is arranged in the opposite direction from the normal orientation, the backup catch claw 82 is arranged to protrude to one side in the circumferential direction. In this case, the backup guide slit 81 and the backup catch claw 82 can function instead of the guide slit 71 and the catch claw 72 . That is, in the case where the connecting member 60 is arranged in the opposite direction from the normal orientation, it can be caught and held by the backup catch claw 82 and guided to the radially inner side by the backup guide slit 81 (the backup guide surface 83 and the backup opposing surface 84 ). The yarn Yb. In this case, the yarn Yb is not accidentally caught by the catch claw 72 .

As described above, by bringing the advancing yarn Yb close to the rotating take-up body 100 and hooking it to the catch claw 72 of the connecting member 60, the yarn Yb can be wound into the catch claw 72 and reliably caught. catch. Furthermore, the yarn Yb can be smoothly guided radially inward by the guide surface 73 . Therefore, the yarn Yb can be made to reach the catch claw 72 while suppressing unintentional application of resistance to the yarn Yb. Therefore, the yarn Yb can be reliably caught without slack.

In addition, when the winding body 100 rotates to one side in the circumferential direction, the yarn Yb is received by the receiving surface 76 to catch the yarn Yb. Here, the receiving surface 76 is only a structure for receiving the yarn Yb, and is not a structure for gripping the yarn Yb, for example. That is, at least the yarn Yb immediately after being received by the receiving surface 76 can slide relative to the receiving surface 76 . Therefore, it is possible to suppress the yarn Yb from falling into an unstable state where the catching claw 72 is suddenly tightened and loosened. Furthermore, the protruding portion 77 can prevent the yarn Yb received by the receiving surface 76 from moving radially outward and falling off the base portion 61 . Therefore, the running yarn Yb can be stably caught and held.

Furthermore, the yarn Yb can be stably and stably guided radially inward by the guide slit 71 .

Furthermore, when the connecting member 60 is rotated by 180° in a plane parallel to the axial direction, the backup guide surface 83 can function instead of the guide surface 73 , and the backup catch claw 82 can function instead of the catch claw 72 . Accordingly, even when the winding body 100 is mounted on the winding device 21 in a direction opposite to the normal orientation, the yarn Yb can be normally caught. That is, it is not necessary to consider the orientation of the connection member 60 when loading the connection member 60 on the winding device 21 . Therefore, it is possible to reduce the labor and time required to consider the orientation of the connection member 60 .

Also, the backup catch claw 82 is arranged at a position different from the catch claw 72 in the circumferential direction. Thus, compared with the case where all or a part of the backup catch claws 82 are disposed at positions overlapping with the catch claws 72 in the circumferential direction, the size of the base portion 61 in the axial direction can be suppressed, and the catch claws 72 and the catch claws 72 can be formed larger. Backup catch claw 82. Therefore, it is possible to achieve both "suppression of increase in size of the connecting member 60" and "suppression of failure to catch and/or hold the yarn Yb".

Furthermore, the guide surface 73 and the catch claw 72 are disposed radially inward of the radially outer ends of the pair of stopper portions 66 . Therefore, by loading the two winding bobbins B2 having an outer diameter larger than that of the pair of stoppers 66 on the connecting member 60, the winding body 100 can be handled in the same manner as the single winding bobbin B1. In particular, the same touch roller 46 can be used both when the operation mode of the winding device 21 is the multi-mode and the individual mode. Therefore, labor and time for replacing the touch roller 46 can be saved when switching the operation mode.

Furthermore, the traveling yarn Yb can be smoothly guided to the guide surface 73 by the inclined surface 68a.

In addition, in the yarn hanging method of the present embodiment, by catching the yarn Yb in the catch claw 72, the yarn Yb can be reliably caught and held without slack. Therefore, the success rate of yarn hanging can be improved.

Next, a modified example in which changes are made to the above-described embodiment will be described. However, the same symbols are attached to the parts having the same configuration as those in the above-mentioned embodiment, and descriptions thereof are appropriately omitted.

(1) In the above-described embodiment, it is assumed that the base portion 61 of the connecting member 60 constituting the winding body 100 converges radially inward of the winding bobbins B2a and B2b. However, it is not limited to this. The base part 61 may be formed so that the size in the radial direction is equal to that of the winding bobbins B2a and B2b. In such a case, it is also possible to share the touch roller 46 in both the majority mode and the single mode.

Alternatively, the radial dimension of the base portion 61 may be larger than the radial dimension of the winding bobbins B2a, B2b. For example, the guide surface 73 and the catch claw 72 may protrude radially outward from the stopper portions 67 and 68 . However, in this case, in order to normally apply contact pressure to the wound package P2 in many modes, it is necessary to use a touch roller (not shown) with a concave center portion in the axial direction.

(2) In the above-mentioned embodiments, it is assumed that the backup guide surface 83 and the backup catch claw 82 are provided at positions different from the guide surface 73 and the catch claw 72 in the circumferential direction. However, it is not limited to this. At least a part of the backup guide surface 83 and the backup catch claw 82 may be provided at a position overlapping the guide surface 73 and the catch claw 72 in the circumferential direction.

(3) In the above-mentioned embodiments, it is assumed that one catch claw 72 and one backup catch claw 82 are respectively provided on the connection member 60 . However, it is not limited to this. For example, at least one of the catch claw 72 and the backup catch claw 82 may be provided in plural. As a specific example, two catch claws 72 may be arranged side by side in the circumferential direction. Alternatively, for example, the second catch claw 72 may be provided at a position where the backup facing surface 84 is formed. In addition, the number of catch claws 72 and the number of backup catch claws 82 provided on the connection member 60 may be the same or different from each other.

(4) In the above-mentioned embodiments, it is assumed that the backup guide surface 83 and the backup catch claw 82 are provided on the connection member 60 . However, it is not limited to this. The connection member 60 may not have the backup guide surface 83 and the backup catch claw 82 . However, in this case, it is necessary to pay attention to the orientation of the wound body 100 when loading the wound body 100 on the cradle 43 .

(5) In the above-mentioned embodiments, it was assumed that the opposing surface 74 is formed on one side in the axial direction of the guide surface 73 , and the guide slit 71 is formed by the guiding surface 73 and the opposing surface 74 . However, it is not limited to this. The facing surface 74 is not necessarily provided.

(6) The shape of the receiving surface 76 is not limited to the above-mentioned shape. For example, the receiving surface 76 may also be curved in a concave shape.

(7) The shape of the protruding portion 77 is not limited to the above-mentioned shape. The protrusion 77 may also have, for example, a cylindrical shape that protrudes at least to the circumferential direction.

(8) In the above-mentioned embodiments, it has been assumed that the receiving surface 76 and the protruding portion 77 are formed separately, but the present invention is not limited thereto. For example, the receiving surface 76 does not have to be formed. In this case, the side surface 77a of the protruding portion 77 can receive the yarn Yb, for example.

(9) The structure of the catch claw 72 is not limited to the above structure. The catching claw 72 may be a mechanism different from the mechanism for sandwiching the yarn Yb in the gap between the winding bobbin B2 and the base portion 61, as long as it is configured to be able to catch the yarn Yb guided radially inward by the guide surface 73. .

(10) In the above-mentioned embodiments, it is assumed that the bottom surface portions 75 , 85 and the outer peripheral surfaces 91 , 92 are formed at the central portion in the axial direction of the base portion 61 . However, it is not limited to this. A substantially circular bottom portion (not shown) as viewed from the axial direction may be formed at the central portion of the base portion 61 in the axial direction, for example, over the entire circumference. For example, the bottom surface may be formed on the inner side in the radial direction than the above-mentioned bottom surfaces 75 and 85 .

(11) The winding device 21 may be configured to be able to execute only a plurality of operation modes for winding the yarn Y.

(12) The winding device 21 may be configured to be capable of winding the yarn Y onto three or more winding bobbins (not shown). That is, the winding body 100 may have two or more connecting members 60 and three or more winding bobbins (not shown).

(13) The connecting member 60 of the present invention is not limited to the take-up device 21 of the false twist processing machine 1, and can be applied to various coils configured to be able to take up two or more yarns (not shown). device (not shown).

Claims (8)

1. A connecting member configured to align and connect two winding bobbins used to wind a running yarn along a predetermined axial direction, characterized in that it comprises: a base portion arranged to be sandwiched between the above-mentioned two winding bobbins arranged in the above-mentioned axial direction, and Arranged on both sides in the above-mentioned axial direction of the above-mentioned base part, and configured as a pair of loading parts capable of loading the above-mentioned two winding bobbins; The above-mentioned base part has: A pair of stoppers for restricting movement of the two winding bobbins in the axial direction are disposed between the pair of loading portions in the axial direction, A guide surface that guides the traveling yarn radially inward of the base portion is disposed between the pair of stoppers in the axial direction, and A catching claw for catching the yarn guided inwardly in the radial direction by the guide surface. 2. The connecting part according to claim 1, characterized in that, The above catch claw has: a receiving surface formed to face at least one side of the base portion in the circumferential direction, and A protruding portion that protrudes to at least one side in the circumferential direction than the receiving surface, and prevents the running yarn received by the receiving surface from falling off. 3. The connecting part according to claim 1 or 2, characterized in that, The base portion has a guide slit formed by the guide surface and an opposing surface arranged to face the guide surface in the axial direction. 4. The connecting member according to any one of claims 1 to 3, characterized in that: The above-mentioned guiding surface faces at least one side in the above-mentioned axial direction; The catch claw is disposed on the other side of the guide surface in the axial direction, and protrudes at least toward one side of the base portion in the circumferential direction; The above-mentioned base part has: a backup guide surface facing at least the other side in the axial direction and capable of guiding the advancing yarn inwardly in the radial direction, and A backup catch claw is disposed on the one side in the axial direction of the guide surface and protrudes at least toward the other side in the circumferential direction. 5. The connection member according to claim 4, wherein the backup catch claw is arranged at a position different from that of the catch claw in the circumferential direction. 6. The connecting member according to any one of claims 1 to 5, characterized in that: The guide surface and the catch claw are arranged on the radially inner side of the radially outermost ends of the pair of stoppers. 7. The connecting member according to claim 6, wherein one of the pair of blocking portions has an inclined surface connected to the guiding surface and formed so as to be closer to the outside of the guiding surface in the axial direction. the smaller the diameter. 8. A yarn hanging method for hanging a plurality of advancing yarns on a take-up body, the take-up body having the connection member according to any one of claims 1 to 7 and the connection member mounted on the above-mentioned connection member 2 take-up bobbins on, characterized in that, While rotating the take-up body, one of the plurality of yarns is guided inwardly in the radial direction by the guide surface to be caught by the catching claws.

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