WO2020008725A1

WO2020008725A1 - Thread winding machine

Info

Publication number: WO2020008725A1
Application number: PCT/JP2019/018617
Authority: WO
Inventors: 清水　亮
Original assignee: 村田機械株式会社
Priority date: 2018-07-05
Filing date: 2019-05-09
Publication date: 2020-01-09
Also published as: CN112334403B; CN112334403A; JP2020007075A

Abstract

A winding unit 3 comprises a thread supplying device 12, a winding device 14, a wax applying device 30, a thread splicing device 26, and a second capture guiding device 34. The wax applying device 30 has: a supporting unit 42 that supports a wax body W; a holding unit 44 that is provided so as to be able to move between a first position P1 at which to allow the wax body W to be held on the supporting unit 42 and a second position P2, away from the supporting unit 42, at which to allow the wax body W to be put on and removed from the supporting unit 42; and a restricting unit 46 that holds the holding unit 44 in the second position P2. The holding unit 44 is positioned on the trajectory on which the second capture guiding device 34 moves when at the second position P2, and by coming into contact with the second capture guiding device 34 and thus being released from being held by the restricting unit 46, moves to the first position P1.

Description

Yarn winding machine

The present invention relates to a yarn winding machine.

The yarn winding device includes a wax applying device that applies wax to the yarn. The wax applying device applies the wax to the yarn by pressing the wax molded body against the yarn. The wax application device described in Patent Literature 1 includes a support member that supports a wax molded body, and a pressing member that holds the wax molded body with respect to the support member.

JP-A-9-12227

(4) When attaching / detaching (exchanging) the wax molded body in the wax applying device, the holding member is released from the holding by operating the pressing member. After attaching the wax molded body, it is necessary to attach the pressing member so that the wax molded body is held on the support member, but the operator may forget the operation. In this case, the wax molded article may fall off or wax may not be applied to the yarn.

の一 One aspect of the present invention is to provide a yarn winding machine capable of avoiding occurrence of a problem in a wax applying device.

A yarn winding machine according to one aspect of the present invention includes a yarn supplying unit that supplies a yarn, a winding device that winds the yarn to form a package, and a wax application that applies wax to the yarn wound by the winding device. A yarn splicing device for splicing the yarn supplied by the yarn supplying section and the yarn wound into the package by the winding device; and a catching device for catching the yarn wound on the package and guiding the yarn to the yarn joining device. A waxing device, comprising: a support for supporting the wax molded body; a first position for holding the wax molded body with respect to the support; and a support for attaching and detaching the wax molded body to and from the support. A holding portion movably provided at the second position, and a regulating portion for holding the holding portion at the second position, wherein the holding portion has a track on which the capturing device moves at the second position. Is located above Holding by the regulating unit by the contact with the capture device is moved to the first position is released.

In the yarn winding machine according to one aspect of the present invention, when the winding operation is started after the wax forming body is attached and detached in the wax applying device, the yarn joining device performs the yarn joining. Therefore, after the attachment / detachment operation of the wax molded body, the catching device moves to catch the yarn wound in the package and guide the yarn to the yarn joining device. In such a configuration, the holding unit is located on the track on which the capturing device moves at the second position, and is released from holding by the restricting unit by contact with the capturing device, and moves to the first position. Accordingly, in the yarn winding machine, even if the worker keeps the holding portion at the second position after the holding portion is moved to the second position and the wax molded body is attached and detached, the movement of the catching device is prevented. Accordingly, the holding unit moves to the first position. Therefore, in the yarn winding machine, when performing the winding operation, the wax molded body is securely held by the holding portion by the holding portion. As a result, in the yarn winding machine, it is possible to avoid the occurrence of problems in the wax application device, such as the wax molded body falling off or the wax not being applied to the yarn.

In one embodiment, the holding portion may be biased to move in a direction of pressing the wax molded body toward the yarn path. In this configuration, when the holding unit contacts the capturing device at the second position and the holding by the regulating unit is released, the holding unit moves toward the first position by the urging force. Therefore, in the yarn winding machine, the holding portion can be reliably positioned at the first position.

In one embodiment, the holding portion may be biased by a torsion coil spring so as to move in a direction of pressing the wax molded body toward the yarn path. In this configuration, by using the torsion coil spring, the holding portion can be surely urged.

In one embodiment, the capturing device is movably provided at a capturing position for capturing the yarn and a guiding position for guiding the captured yarn to the yarn joining device, and the capturing device moves toward the capturing position. And the holding portion may contact each other. In this configuration, since the catching device comes into contact with the holding portion when heading to the catching position, the holding portion can be positioned at the first position before guiding the yarn to the yarn joining device. Therefore, in the yarn winding machine, the holding portion can be reliably positioned at the first position before the yarn joining is completed by the yarn joining device, that is, before the winding operation is started.

In one embodiment, the holding portion has a pressing lever for pressing the wax molded body attached to the supporting portion, and a projecting portion provided on the pressing lever, and the regulating portion is a leaf spring. The holding portion may be held at the second position by having a locking portion for locking the projecting portion, and the projecting portion of the holding portion being locked to the locking portion of the regulating portion. With this configuration, the holding portion can be held at the second position, and the holding of the holding portion can be reliably released by contact with the capturing device.

In one embodiment, the regulating unit may hold the holding unit with a magnetic force. With this configuration, the holding portion can be held at the second position, and the holding of the holding portion can be reliably released by contact with the capturing device.

According to one aspect of the present invention, it is possible to avoid a problem in the wax applying device.

FIG. 1 is a front view of the automatic winder according to one embodiment. FIG. 2 is a side view of the winding unit. FIG. 3 is a perspective view showing the wax applying device. FIG. 4 is a side view of the wax applying device. FIG. 5 is a view of the wax applying device as viewed from above. FIG. 6 is a diagram illustrating the operation of the holding unit of the wax applying device. FIG. 7 is a diagram illustrating the operation of the holding unit of the wax applying device. FIG. 8 is a diagram showing a positional relationship between the holding unit of the wax applying device and the second catching and guiding device. FIG. 9 is a diagram illustrating a positional relationship between the holding unit of the wax applying device and the second catching and guiding device.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the drawings, the same or corresponding elements will be denoted by the same reference symbols, without redundant description.

As shown in FIG. 1, the automatic winder 1 includes a plurality of winding units (yarn winding machines) 3 arranged side by side, a machine base control device 5, and a doffing device 7.

The machine control device 5 can communicate with each of the plurality of winding units 3. The operator of the automatic winder 1 can manage the plurality of winding units 3 collectively by appropriately operating the machine control device 5. The machine control device 5 is provided with a display screen 5a and an input key 5b. The display screen 5a can display information related to the setting contents and / or the state of the winding unit 3, and the like. When the operator performs an appropriate operation using the input key 5b, the setting operation of the winding unit 3 can be performed.

それぞれ Each of the plurality of winding units 3 winds the yarn Y around the winding bobbin WB while unwinding the yarn Y from the yarn supplying bobbin SB. Thus, the winding unit 3 forms the package P. The yarn Y may include a core yarn. The core yarn is, for example, a monofilament yarn, a yarn or the like.

The doffing device 7 travels to the position of the winding unit 3 when the package P is fully wound (in a state where a specified amount of yarn has been wound) in each of the plurality of winding units 3, and The winding package is removed from the winding unit 3 and an empty winding bobbin WB is set on the winding unit 3.

Next, the configuration of the winding unit 3 will be described with reference to FIG. As shown in FIG. 2, each of the plurality of winding units 3 includes a unit control unit 10, a yarn feeding device (yarn feeding unit) 12, and a winding device 14.

The unit control unit 10 includes, for example, a CPU (Central Processing Unit) and a ROM (Read Only Memory). The ROM stores a program for controlling each configuration of the winding unit 3. The CPU executes a program stored in the ROM. The unit control unit 10 controls each configuration of the winding unit 3 by cooperation of hardware and software. The unit control unit 10 is configured to be able to communicate with the machine control device 5. Thereby, the operations of the plurality of winding units 3 provided in the automatic winder 1 can be centrally managed in the machine control device 5.

The yarn feeding device 12 is a support mechanism that supports the yarn feeding bobbin SB placed on a transport tray (not shown) at a predetermined position. Thereby, the yarn Y is unwound from the yarn supplying bobbin SB, and the yarn Y is drawn out from the yarn supplying bobbin SB. Thereby, the yarn supply device 12 supplies the yarn Y. The yarn feeding device 12 is not limited to the transport tray type, and may be, for example, a magazine type.

The winding device 14 includes a cradle 16 and a winding drum 18. The cradle 16 has a pair of rotation supports (not shown). The cradle 16 rotatably supports the winding bobbin WB (or the package P) by sandwiching the winding bobbin WB between the rotation support portions. The cradle 16 can be switched between a state in which the package P supported is in contact with the winding drum 18 and a state in which the package P is separated from the winding drum 18.

The winding drum 18 traverses the yarn Y on the surface of the package P and rotates the package P. The winding drum 18 is driven to rotate by a drum drive motor (not shown). The package P is driven to rotate by rotating the winding drum 18 while the outer periphery of the package P is in contact with the winding drum 18. A spiral traverse groove is formed on the outer peripheral surface of the winding drum 18. The yarn Y unwound from the yarn supplying bobbin SB is wound around the surface of the package P while being traversed by the traverse groove at a constant width. Thereby, a package P having a constant winding width can be formed.

Each of the plurality of winding units 3 includes, in the yarn traveling path between the yarn feeding device 12 and the winding device 14, in order from the yarn feeding device 12 side, the unwinding assisting device 20, the tension applying device 22, A tension detecting device 24, a yarn joining device 26, a yarn monitoring device 28, and a wax applying device 30 are provided. In the vicinity of the yarn joining device 26, a first catching and guiding device 32 and a second catching and guiding device (capturing device) 34 are arranged.

The unwinding assisting device 20 includes a regulating member 21 that can cover the core tube of the yarn supplying bobbin SB. The regulating member 21 has a substantially cylindrical shape and is arranged so as to come into contact with a balloon formed above the yarn layer of the yarn supplying bobbin SB. The balloon is a portion where the yarn Y unwound from the yarn supplying bobbin SB is swung by centrifugal force. By bringing the regulating member 21 into contact with the balloon, the yarn Y in the balloon portion is prevented from being excessively swung by coming into contact with the yarn Y. Thereby, the yarn Y can be appropriately unwound from the yarn supplying bobbin SB.

The tension applying device 22 applies a predetermined tension to the running yarn Y. In the present embodiment, the tension applying device 22 is of a gate type in which movable comb teeth are arranged with respect to fixed comb teeth. The movable-side comb teeth are urged so that the comb teeth are engaged with each other. The tension applying device 22 applies tension to the yarn Y by causing the yarn Y to pass while bending the comb teeth in the engaged state. The operation of the tension applying device 22 is controlled by the unit control unit 10.

The tension detecting device 24 detects (measures) the tension of the traveling yarn Y between the yarn supplying device 12 and the winding device 14. The tension detection device 24 outputs a tension measurement signal indicating a measured value of the tension of the yarn Y to the unit control unit 10.

When the yarn Y is split between the yarn supplying device 12 and the winding device 14 for some reason, the yarn joining device 26 is connected to the yarn Y (lower yarn) on the yarn supplying device 12 side and the winding device. The yarn Y (upper yarn) on the 14 side is spliced. In the present embodiment, the yarn joining device 26 is configured as a splicer device that twists yarn ends with a swirling airflow generated by compressed air.

The yarn monitoring device 28 monitors the state of the yarn Y traveling on the yarn path, and detects the presence or absence of a yarn defect based on the monitored information. The yarn monitoring device 28 detects, for example, a thickness abnormality of the yarn Y and / or a foreign substance contained in the yarn Y as a yarn defect. The yarn monitoring device 28 also detects a yarn break, that is, the presence or absence of the yarn Y in the yarn path. In the vicinity of the yarn monitoring device 28, a cutter 29 for cutting the yarn Y is provided. The cutter 29 is operated by the yarn monitoring device 28.

The wax applying device 30 is disposed between the winding device 14 and the yarn monitoring device 28. The wax application device 30 applies wax to the yarn Y traveling from the yarn monitoring device 28 to the winding device 14. The wax applying device 30 rotates the cylindrical wax molded body W around its axis and presses one end surface of the wax molded body W against the running yarn Y while being traversed. Thereby, the wax application device 30 applies wax to the yarn Y.

The wax molded body W is a wax molded into a cylindrical shape. As the wax, various waxes according to the use or specifications of the yarn Y are used. For example, as the wax, a natural wax such as a wax, a synthetic wax such as a paraffin wax, or a wax obtained by combining these can be used.

As shown in FIGS. 3, 4 and 5, the wax applying device 30 includes a housing 40, a support portion 42, a holding portion 44, and a regulating portion 46.

The housing 40 is mounted on a frame (not shown) of the winding unit 3. The housing 40 includes a first main body 50, a second main body 52, and a plate 54. The first main body 50 is fixed to the frame of the winding unit 3. Thereby, the housing 40 is fixed to the winding unit 3.

The first main body 50 is a member having a space formed therein. The first main body 50 is provided with a connector or the like connected to an electric device mounted on the wax applying device 30. The second main body 52 is fixed to the first main body 50. The second main body 52 has an upstream plate 52a, a downstream plate 52b, and a side plate 52c.

The upstream plate 52a and the downstream plate 52b are formed in a flat plate shape, and are arranged so that the thickness direction thereof is along the running direction of the yarn Y. The downstream plate 52b is disposed at a position separated by a predetermined distance downstream of the upstream plate 52a so as to face the upstream plate 52a. The upstream plate 52a is provided with a guide portion 53a on which the yarn Y travels. The downstream plate 52b is provided with a guide portion 53b on which the yarn Y travels. The guide portion 53a and the guide portion 53b are arranged on a straight line along the running direction of the yarn Y.

筒 A tubular member 56 is disposed between the upstream plate 52a and the downstream plate 52b. The tubular member 56 is arranged between the upstream plate 52a and the downstream plate 52b at a position near the upstream plate 52a. The tubular member 56 is connected to a negative pressure source (not shown), and the suction state is constantly maintained during the winding of the line. Thus, the tubular member 56 sucks the lump of wax separated from the wax molded body W and / or fly waste generated from the yarn Y.

The side plate 52c connects one end of the upstream plate 52a and one end of the downstream plate 52b. The side plate 52c extends so as to be orthogonal to the upstream plate 52a and the downstream plate 52b. The side plate 52c is fixed to the first main body 50. Thereby, the second main body 52 is fixed to the first main body 50.

プレート As shown in FIGS. 3 and 4, the plate 54 is fixed to the first main body 50. The plate 54 is formed in a flat plate shape, and is arranged so that the thickness direction thereof is along the running direction of the yarn Y. The plate 54 is disposed at a position at a predetermined distance upstream of the upstream plate 52a of the second main body 52 so as to face the upstream plate 52a. The plate 54 is provided with a guide portion 54a. The guide portion 54a is arranged at a position shifted from the guide portion 53a of the upstream plate 52a.

The support part 42 supports the wax molding W. The support part 42 has a mounting shaft 60 and a positioning member 62. The mounting shaft 60 is inserted into a cylindrical hole of the wax molded body W and a hole of the wax plate 64 attached to the wax molded body W. The holes in the wax plate 64 engage with the mounting shaft 60. As shown in FIG. 4, the wax plate 64 is a plate member having a circular shape. In the wax plate 64, a plurality of protrusions (not shown) for restricting the movement (rotation) of the wax molded body W with respect to the wax plate 64 are provided on one surface facing the other end surface of the wax molded body W.

The mounting shaft 60 is disposed between the upstream plate 52a and the downstream plate 52b of the second main body 52. One end of the mounting shaft 60 is mounted on a rotating shaft 66 of a motor (not shown) that drives the mounting shaft 60 to rotate. The mounting shaft 60 rotatably supports the wax molded body W. The positioning member 62 is fixed to the first main body 50 of the housing 40. The positioning member 62 supports the rotation shaft 66. The positioning member 62 is provided with a plurality (for example, three) of wax pins 62a. The wax pin 62a is abutted against one end surface of the wax molded body W supported by the support portion 42 during normal winding.

The holding section 44 holds the wax molded body W on the mounting shaft 60 of the support section 42. The holding unit 44 is arranged in a region between the upstream plate 52a and the downstream plate 52b of the second main body 52. The holding section 44 is configured to be swingable about a swing shaft 70. The swing shaft 70 is provided on the upstream plate 52 a of the second main body 52. The swing shaft 70 extends along the traveling direction of the yarn Y. A torsion coil spring (not shown) is attached to the swing shaft 70. The holding portion 44 is urged by the elastic force of the torsion coil spring to move in a direction of pressing the wax molded body W toward the yarn path side of the yarn Y (the first main body 50 side or the positioning member 62 side) ( (Rotation). In the present embodiment, as shown in FIG. 5, the holding portion 44 is urged to rotate counterclockwise.

The holding section 44 has a pressing lever 44a, a protruding section 44b, and a detecting section 44c. The holding portion 44 has a substantially L-shape. The pressing lever 44a, the projecting portion 44b, and the detecting portion 44c are formed integrally. The holding portion 44 is formed using, for example, a resin as a material.

(4) The pressing lever 44a presses the wax molded body W attached to the attachment shaft 60 of the support portion 42. The pressing lever 44a presses the wax molded body W by contacting one surface of the wax plate 64. As shown in FIG. 5, the pressing lever 44a has a curved shape at the distal end (the end opposite to the proximal end supported by the swing shaft 70). The pressing lever 44a is curved toward the wax molded body W side.

The projecting portion 44b is a portion that is locked by the regulating portion 46. The protruding portion 44b is provided on a side surface of the pressing lever 44a. The restricting portion 46 protrudes upstream from the pressing lever 44a. The upstream portion of the projecting portion 44b has a tapered shape. The tapered portion of the projecting portion 44b is locked by the regulating portion 46.

The detection unit 44c is a part detected by the sensor 72. The detecting unit 44c is connected to a base end of the pressing lever 44a. The detection unit 44c can be detected by the sensor 72 at a first position P1 (described later) of the holding unit 44. The sensor 72 outputs a detection result to the unit control unit 10. The unit control unit 10 acquires the remaining amount of the wax molded body W based on the detection result of the sensor 72.

保持 As shown in FIG. 6 or FIG. 7, the holding portion 44 can swing between a first position P1 and a second position P2. As shown in FIG. 6, the first position P1 is a position where the wax molded body W is held by the support portion 42, and the pressing lever 44a moves the wax molded body W (the wax plate 64) toward the yarn path side. Is the position to press. As shown in FIG. 7, the second position P <b> 2 is a position away from the support part 42 for attaching and detaching the wax molded body W in the support part 42. The second position P2 is a position where the holding unit 44 is held by the regulating unit 46. Note that the first position P1 can be defined as a position other than the second position P2.

The holding portion 44 (the pressing lever 44a) is located on the trajectory of the movement of the second capturing and guiding device 34 at the second position P2. That is, the holding unit 44 can contact the moving second capturing and guiding device 34 at the second position P2. The holding unit 44 is released from holding by the regulating unit 46 by contact with the second capturing and guiding device 34 and moves to the first position P1. Specifically, when the holding unit 44 releases the holding by the regulating unit 46 at the second position P2, the holding unit 44 rotates toward the first position P1 by the urging force of the coil spring.

(4) The regulating unit 46 regulates the movement of the holding unit 44. The restricting portion 46 is arranged at a position where the holding portion 44 can be held at the second position P2. In the present embodiment, the restricting portion 46 is a leaf spring having elasticity. The restricting section 46 is fixed to the second main body section 52. The restricting portion 46 holds the holding portion 44 at the second position P2 by locking the projecting portion 44b of the holding portion 44. The restricting portion 46 has a supporting portion 46a and a locking portion 46b. The support part 46a and the locking part 46b are formed integrally.

The support portion 46a is fixed to the upstream plate 52a of the second main body 52. The locking portion 46b locks the projecting portion 44b of the holding portion 44. As a result, the restricting section 46 restricts the movement of the holding section 44. The locking portion 46b has a bent shape. The elastic force of the restricting portion 46 is set so as to be deformable when the holding portion 44 moves due to contact with the second capturing and guiding device 34.

The first catching and guiding device 32 catches the upper thread when the thread Y is in a split state. Under the control of the unit controller 10, the first catching and guiding device 32 can pivot (move) from a standby position on the yarn feeding device 12 side (solid line in FIG. 2) to a catching position on the winding device 14 side (dashed line in FIG. 2). Possible). In the present embodiment, the standby position is also a guide position for guiding the captured yarn Y to the yarn joining device 26. The first capturing and guiding device 32 is connected to a negative pressure source (not shown) and generates a suction flow. With this configuration, the upper thread suction capturing section 33 captures the upper thread at the capturing position and guides the upper thread to the yarn joining device 26 by returning to the standby position.

Under the control of the unit controller 10, the second catching and guiding device 34 is capable of turning (moving) from a standby position on the yarn feeding device 12 side (solid line in FIG. 2) to a catching position on the winding device 14 side (chain line in FIG. 2). Possible). In the present embodiment, the standby position is also a guide position for guiding the captured yarn Y to the yarn joining device 26. That is, the second catching and guiding device 34 can pivot between a catching position for catching the yarn Y of the package P and a guiding position for guiding the catched yarn Y to the yarn joining device 26. The second capturing and guiding device 34 is connected to a negative pressure source (not shown) and generates a suction flow. With this configuration, the second catching and guiding device 34 catches and guides the lower thread to the yarn joining device 26.

及び As shown in FIGS. 8 and 9, the second capturing and guiding device 34 is configured to include a nozzle portion 34a and a pipe portion 34b. The nozzle part 34a is provided at the tip of the pipe part 34b. The pipe portion 34b is rotated by a motor M. When moving from the standby position to the capturing position, the second capturing and guiding device 34 moves along a predetermined trajectory.

Next, an example of an operation related to replacement of the wax molded body W in the wax applying device 30 will be described.

When replacing the wax molded body W, the operator operates the pressing lever 44a of the holding unit 44 to move the holding unit 44 from the first position P1 to the second position P2. When the holding unit 44 is located at the second position P2, the holding unit 44 is held at the second position P2 by the regulating unit 46.

(4) When the operator positions the holding unit 44 at the second position P2, the operator pulls out the wax molded body W and the wax plate 64 from the mounting shaft 60 of the support unit 42. Thereby, the wax molded body W is removed from the support portion 42. Subsequently, the worker attaches a new wax molded body W to the wax plate 64, and then attaches the wax molded body W to the mounting shaft 60 of the support section 42. Thereafter, the operator operates the holding unit 44 to release the holding of the holding unit 44 by the regulating unit 46. Accordingly, the holding unit 44 moves from the second position P2 to the first position P1.

(4) When the replacement of the wax molding W is completed, the operator performs a predetermined operation with the input keys 5b of the machine control device 5. Thereby, in the winding unit 3, the yarn joining operation is started, and after the yarn joining operation is completed, the winding operation is started.

Here, the worker may forget to perform the operation of releasing the restriction on the movement of the holding unit 44 by the restriction unit 46 after attaching the wax molded body W to the support unit 42. That is, the operator may forget to move the holding unit 44 to the first position P1. In this case, the yarn joining operation is started in the winding unit 3 in a state where the holding unit 44 is located at the second position P2. Specifically, the first catching and guiding device 32 moves from the standby position to the catching position, and after guiding the yarn Y, guides the yarn Y to the yarn joining device 26.

Similarly, the second catching and guiding device 34 moves from the standby position to the catching position, and after catching the yarn Y, guides the yarn Y to the yarn joining device 26. At this time, the holding unit 44 is located at the second position P2 where it comes into contact with the second capturing and guiding device 34. Therefore, as shown in FIGS. 8 and 9, when the second capturing / guiding device 34 moves toward the capturing position, the second capturing / guiding device 34 and the holding unit 44 come into contact with each other. Specifically, the tip (curved portion) of the pressing lever 44a of the holding unit 44 comes into contact with the second capturing and guiding device 34. Accordingly, the holding portion 44 is released from holding by the regulating portion 46, that is, the locking of the projecting portion 44b of the holding portion 44 by the locking portion 46b of the regulating portion 46 is released, and moves to the first position P1.

As described above, in the winding unit 3 of the automatic winder 1 according to the present embodiment, when the winding operation is started after the wax forming device W is attached and detached in the wax applying device 30, the yarn joining device 26 performs the yarn joining. Is performed. Therefore, the first catching guide device 32 and the second catching guide device 34 move to catch the yarn Y and guide it to the yarn joining device 26 after the attachment / detachment operation of the wax molded body W. In such a configuration, the holding unit 44 is located on the track on which the second capturing and guiding device 34 moves at the second position P2, and the holding by the regulating unit 46 is released by contact with the second capturing and guiding device 34. Is moved to the first position P1. Thereby, in the winding unit 3, even if the worker holds the holding unit 44 at the second position P2 after the holding unit 44 is moved to the second position P2 and the wax molded body W is attached and detached. The holding unit 44 moves to the first position P1 with the movement of the second capturing and guiding device 34. Therefore, in the winding unit 3, when performing the winding operation, the wax molded body W is securely held on the support portion 42 by the holding portion 44. As a result, in the winding unit 3, it is possible to avoid the occurrence of problems in the wax applying device 30, such as the wax molded body W falling off or the wax not being applied to the yarn Y.

では In the winding unit 3 according to the present embodiment, the holding portion 44 is urged to move in a direction in which the wax molded body W is pressed toward the yarn path of the yarn Y. In this configuration, when the holding unit 44 contacts the second catching and guiding device 34 at the second position P2 and the holding by the regulating unit 46 is released, the holding unit 44 moves toward the first position P1 by the urging force. . Therefore, in the winding unit 3, the holding portion 44 can be reliably positioned at the first position P1.

In the winding unit 3 according to the present embodiment, the second catching and guiding device 34 is provided movably at a catching position for catching the yarn Y and a guiding position for guiding the catched yarn Y to the yarn joining device 26. ing. The second capturing and guiding device 34 contacts the holding unit 44 when moving toward the capturing position. In this configuration, since the second catching guide device 34 comes into contact with the holding portion 44 toward the catching position, the holding portion 44 must be located at the first position P1 before guiding the yarn Y to the yarn joining device 26. Can be. Therefore, in the winding unit 3, the holding portion 44 can be reliably positioned at the first position P1 before the yarn joining by the yarn joining device 26 is completed, that is, before the winding operation is started.

規制 In the winding unit 3 according to the present embodiment, the regulating portion 46 is a leaf spring. The holding portion 44 is held at the second position P2 by being locked by the regulating portion 46. With this configuration, the holding portion 44 can be held at the second position P2, and the holding of the holding portion 44 can be reliably released by contact with the second capturing and guiding device 34. In the winding unit 3, a leaf spring is used as the restricting portion 46. Therefore, the configuration of the winding unit 3 can be simplified as compared with the case where the movement of the holding unit 44 is restricted by a device such as a solenoid.

Although the embodiments of the present invention have been described above, the present invention is not necessarily limited to the above-described embodiments, and various changes can be made without departing from the gist of the present invention.

In the above embodiment, an example in which the yarn winding machine is the winding unit 3 of the automatic winder 1 has been described as an example. However, the yarn winding machine may be a spinning unit that winds the generated yarn.

In the above-described embodiment, an example has been described in which the restricting portion 46 is a leaf spring. However, the regulation unit may be configured to hold the holding unit 44 at the second position P2 by magnetic force. Specifically, for example, the regulating portion is a magnet, and a magnet or metal is provided on a part of the holding portion. In this configuration, when the holding unit is located at the second position P2, the movement of the holding unit is regulated by the magnetic force of the regulating unit.

In the above embodiment, an example in which the pressing lever 44a of the holding unit 44 has a curved shape has been described as an example. However, the pressing lever 44a is not limited to a curved shape, and may have any shape as long as it can press the wax molded body W.

In the above-described embodiment, an example in which the holding unit 44 and the pipe unit 34b of the second capturing and guiding device 34 are in contact with each other has been described as an example. However, the holding portion 44 may come into contact with the nozzle portion 34a of the second capturing and guiding device 34.

3 ... Winding unit (yarn winding machine), 12 ... Yarn feeding device (yarn feeding unit), 14 ... Winding device, 26 ... Yarn splicing device, 30 ... Waxing device, 34 ... Second catching guide device (Catching device) ), P1: first position, P2: second position, W: wax molded body, Y: thread.

Claims

A yarn supplying section for supplying yarn,
A winding device for winding the yarn to form a package;
A wax application device that applies wax to the yarn wound by the winding device,
A yarn splicing device that splices the yarn supplied by the yarn supplying unit and the yarn wound into the package by the winding device;
A capturing device that captures the yarn wound around the package and guides the yarn to the yarn joining device.
The wax applying device,
A support portion for supporting the wax molded body,
A holding member movably provided at a first position for holding the wax compact with respect to the support portion, and at a second position away from the support portion for attaching and detaching the wax compact at the support portion. Department and
A regulating portion for holding the holding portion at the second position,
The yarn winding device, wherein the holding unit is located on a track on which the capturing device moves at the second position, and is released from holding by the restricting unit by contact with the capturing device and moves to the first position. Machine.
2. The yarn winding machine according to claim 1, wherein the holding unit is urged to move in a direction of pressing the wax molded body toward the yarn path of the yarn.
The yarn winding machine according to claim 2, wherein the holding portion is biased by a torsion coil spring so as to move the wax molded body in a direction of pressing the wax molded body toward the yarn path.
The capturing device is movably provided at a capturing position for capturing the yarn, and a guiding position for guiding the captured yarn to the yarn joining device,
The yarn winding machine according to any one of claims 1 to 3, wherein the capturing device that moves toward the capturing position is in contact with the holding unit.
The holding unit,
A pressing lever for pressing the wax molded body attached to the support portion,
And a projecting portion provided on the pressing lever,
The regulating portion is a leaf spring, and has a locking portion for locking the projecting portion,
5. The holding device according to claim 1, wherein the holding portion is held at the second position by locking the protruding portion of the holding portion to the locking portion of the regulating portion. Yarn winding machine.
(5) The yarn winding machine according to any one of (1) to (4), wherein the regulating unit holds the holding unit with a magnetic force.