JPS6316687Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a winding machine that can reliably perform threading operations.

Generally, a winding machine used for a take-up machine, a false twister, a stretch false twister, etc. has a bobbin mounting cradle 1 installed on a machine stand (not shown) as shown in FIGS. 1 and 2. A drive roller 2 that rotates the bobbin, a traverse device 3 installed adjacent to the above-mentioned cradle 1, a waist roller 4 installed opposite the bobbin end of the cradle 1 and on the upstream side of the yarn, A thread hooking arm 5 is rotatably installed to guide the thread Y from the waist roller 4 to the bobbin of the cradle 1.
A swing fulcrum guide 6 that is movably installed in the longitudinal direction of the bobbin is known.

However, in the winding machine configured as described above, when winding the yarn around the waist roller 4, the yarn is wound while traversing the swing fulcrum guide 6, so that the ends of the yarn winding inevitably become ridged. Therefore, when guiding the thread from the waist roller 4 to the bobbin of the cradle 1, the swing fulcrum guide 6 is stopped at the end of the waist roller 4 to regulate the thread path, and the thread hooking arm 5 is rotated to guide the thread to the bobbin. It's wrapped around. Therefore, the thread Y is guided to the bobbin while being wound at the part of the waist roller where the winding diameter is large, and is wound around the bobbin with a large thread tension. Therefore, there was a problem that thread breakage occurred and the success rate of thread winding was very low.

The present invention solves the above-mentioned problems and transfers the yarn onto the waist roller that temporarily takes up the yarn during doffing operations, moves the yarn from the waist roller to the traverse area, and transfers the yarn from the waist roller to the traverse area. This was obtained as a result of studies aimed at improving the thread winding success rate by moving and winding the yarn from the waist roller reliably.

That is, the present invention includes a traverse device for traversing yarn, a cradle for mounting a bobbin for winding yarn, and a waist roller installed at a position different from the axis of the bobbin to temporarily wind yarn during doffing operations. In a winding machine, a thread hooking arm is rotatably installed between the waist roller and the cradle to hold the thread on the waist roller and guide it to the bobbin winding section mounted on the cradle. , a thread guiding part with which the thread comes into contact with the thread while the thread is guided from the waist roller to the bobbin of the cradle and moves the thread winding point on the waist roller, and a thread guiding part that lifts the thread and passes the thread through the collar of the waist roller The present invention provides a winding machine that is provided with a yarn support section and a yarn regulation guide having a yarn locking section for hooking the yarn onto the flange of a waist roller.

The configuration of the winder of the present invention will be explained based on the drawings.

11 is a cradle, and a bobbin holder 12
is rotatably mounted, and rotates as the amount of yarn winding increases. Reference numeral 13 denotes a drive roller, which is used to drive the winding bobbin P attached to the bobbin holder 12.
It is designed to rotate when brought into contact with it. 1
4 is a traverse device, and 15 is a traverse cam box. 16 is a scroll cam, which is rotatably mounted on the traverse cam box 15. 17 is a taper builder,
Traverse cam box 15 with grooves in the longitudinal direction
It is rotatably attached to. A thread guide 18 is engaged with the grooves of the scroll cam 16 and the taper builder 17, and is configured to reciprocate as the scroll cam 16 rotates. 1
A shaft 9 is attached to the traverse cam box 15 via a bearing 23 so as to pass through the traverse cam box 15, and is capable of reciprocating and rotating motion. A cam 20 is attached to the shaft 19 and is always in contact with the taper builder 17, so that the shaft 19 reciprocates to rotate the taper builder 17. 21 is a thread hooking arm, and a thread guide 27 is attached to the tip thereof. Reference numeral 22 denotes a presser, which is fixed to the thread hooking arm 21 with a screw. A thrust bearing 24 is mounted between the thread hooking arm 21 and the traverse cam box 15, and between the presser 22 and the traverse cam box 15, for positioning in the longitudinal direction of the axis. 25
is a spring, which is installed inside the presser 22. A friction member 26 is integrally attached to the shaft 19 and rotatably attached to the thread hooking arm 21 so that the thread hooking arm 21 is rotated integrally with the shaft 19 by the pressing force of the spring 25. It's getting old. The thread guide 27 has a thread guide surface A that moves the thread Y toward the bobbin holder 12 in the longitudinal direction of the axis.
A concave thread locking portion B is formed in connection with the thread guide surface A, and a thread holding guide 28 is attached to the tip side of the thread holding guide 28, which is a ring having a V-shaped groove and matte plating. Reference numeral 29 denotes a stopper, which is fixed to the traverse cam box 15 and is adapted to restrict the end point of rotation of the thread hooking arm 21 on the cradle 11 side. Reference numeral 30 denotes a stopper, which is fixed to the traverse cam box 15 and is adapted to restrict the end point of rotation of the thread hooking arm 21 on the side of the waist roller 34. Reference numeral 31 denotes a tail release guide, which faces the thread locking portion B of the thread guide device 27 attached to the thread hooking arm 21 at the position where the thread hooking arm 21 reaches the end point of rotation on the cradle 11 side; It is fixed on the traverse device 14 on the rotation fulcrum side of the thread hooking arm 21. The tail release guide 31 preferably has an elongated mounting hole so that the mounting position can be easily adjusted.
32 is a thread regulation guide, and a tail release guide 3
1 and the waist roller 34, a yarn guide surface C inclined toward the swing fulcrum (not shown), a yarn support surface D connected to the yarn guide surface C, and a yarn locking portion E are formed. has been done. Reference numeral 33 denotes a shaft, which is rotatably mounted on the machine base 37. waist roller 34
The waist roller 34 rotates integrally with the shaft 33, and is mounted so as to slip when an external force is applied to the waist roller 34. Reference numeral 35 denotes a thread guide rod, which is attached to the machine base 37 so as to be able to freely reciprocate, and a thread guide 36 is fixed at a predetermined position.

The threading operation in the above-mentioned winding machine will be explained.

When starting to wind the yarn, the bobbin P is mounted on the bobbin holder 12 of the cradle 11, brought into contact with the drive roller 13 with a predetermined surface pressure, and
The thread hooking arm 21 is kept waiting at a position a below the thread path where the thread guide tool 27 reaches the waist roller 34 via the thread guide rod 35. Next, the drive device (not shown)
, drive roller 13, waist roller 3
4 at low speed, and the traverse device 1
The thread guide 18 of No. 4 is reciprocated at low speed. In this state, the thread Y is wound around the waist roller 34. Then, the thread shifting guide 36 is moved between d and e, which is the winding width of the waist roller 34, and the thread Y is wound while being traversed by utilizing the action of returning the thread Y to the swinging fulcrum side. In this state, the thread Y is threaded to a processing section (not shown) on the upstream side. and,
A drive device (not shown) is operated to drive the drive roller 1.
3. The winding speed is increased to a preset value while synchronizing the waist roller 34, traverse device, etc. When these winding speeds reach a predetermined winding speed, the reciprocating movement of the yarn guide rod 35 is stopped, the yarn shifting guide 36 is stopped at position e, and the yarn path is regulated. Then,
The shaft 19 rotates, and the thread hooking arm 2 is rotated through the friction member 26.
1, the thread guide 27 is moved from position a to position b. The yarn Y located between the yarn guide rod 35 and the waist roller 34 is held by the yarn holding guide 28 attached to the yarn guide tool 27. When the thread holding guide 28 moves to the position f, the thread guide rod 35 operates, and the thread shifting guide 36, which was at the position e, is moved to the position c, and the position of the thread Y is regulated by the thread shifting guide 36. is released. Therefore, the thread path is formed by the swing fulcrum guide (not shown) and the thread holding guide 28. The thread hooking arm 21 continues to rotate and the thread holding guide 2
When the roller 8 moves to the g position, the waist roller 3
4, the yarn Y wound on the yarn regulating guide 32 comes into contact with part n of the yarn guiding surface C of the yarn regulating guide 32, and as the yarn holding guide 28 moves, it moves along the inclination of the guiding surface of the yarn regulating guide 32 in the direction of the arrow. Move to. Due to the movement of the yarn Y, the winding position on the waist roller 34 moves from the thick winding part due to the raised edges at the winding end to the thin winding part at the center of the waist roller 34. Since the rotation speed of the waist roller 34 is constant, the winding tension is reduced by the difference in winding diameter. When the thread hooking arm 21 continues to rotate and the thread holding guide 28 moves to the position h, the thread Y located between the thread guide rod 35 and the thread holding guide 28 is moved to the thread supporting surface D of the thread regulating guide 32. Contact m
move in the direction of p. Therefore, the yarn Y passes through the flange of the waist roller 34 while being lifted by the yarn regulation guide 32 and moves toward the swinging fulcrum. As the thread holding guide 28 moves to the threading position b, the winding angle of the thread Y around the thread holding guide 28 increases, so the contact resistance increases, and the tension on the exit side is large and the tension on the entrance side is small. Become. Subsequently, when the thread hooking arm 21 rotates and the thread holding guide 28 moves to the position immediately before thread threading onto the bobbin holder 12, the thread Y that was in contact with the thread guide surface A of the thread guide device 27 is moved from j to The thread Y moves in the direction k, that is, closer to the swinging fulcrum than the bobbin holder 12, and the thread Y located between the part a of the thread guide 27 and the thread holding guide 28 straddles the bobbin holder 12. When the thread hooking arm 21 continues to rotate in this state, the thread Y is caught in the notch formed in the bobbin holder 12 and wound around the bobbin P. Then, the thread Y slides off the thread guide surface A of the thread guide 27 and moves to the thread locking part B, and is moved to the position l by the stepped part of the thread locking part B while being supported by the tail release guide 31. It is locked and a tail is formed. When the thread hooking arm 21 further rotates from this state, the stepped portion of the thread locking portion B of the thread guide 27 moves downward from the position of the tail release guide 31, and the thread Y moves downward from the position of the tail release guide 31. It is released from the center and moves to the swing fulcrum side. When the thread Y moves to the traverse area, it is engaged with the thread guide 18 and the bobbin P
At the same time, the yarn Y located between the bobbin P and the waist roller 34 is cut. The thread hooking arm 21 comes into contact with the stopper 29 and stops rotating. When the thread Y is wound around the bobbin P by the above-described operation, the shaft 19 reciprocates at a preset speed, and the cam 20 attached to the shaft 19 moves back and forth at a preset speed.
As a result, the taper builder 17 is rotated intermittently, the traverse width of the thread guide 18 is periodically changed, and the end face is broken. Further, when winding is started by the bobbin P, the rotation of the shaft 33 is stopped, and the rotation of the waist roller 34 is stopped. The above bobbin P
While the yarn Y is being wound up, the waist yarn that has been wound around the waist roller 34 is removed. At this time, the thread guide 27 is in position b, and the thread guide 3
6 are waiting at the position c. And thread Y
When the predetermined amount is wound up, the shaft 33 rotates, the waist roller 34 rotates, and the shaft 19 continues to rotate while reciprocating. Then,
The thread hooking arm 21 is rotated together with the shaft 19 until it comes into contact with the stopper 30, and the thread guide 27 is moved to the position a. Due to the malfunction, the threading arm 21 comes into contact with the stopper 30 and stops, but the shaft 19 slips between the integrally attached friction member 26 and the threading arm 21, rotates by a predetermined angle, and then stops. When the thread guide 27 moves to position a by the above operation, the thread guide rod 35 operates, and the thread guide 36 located at position c is moved to position d, and accordingly, the thread Y is also moved to position d. will be moved to Then, the thread Y between the thread guide 18 and the thread shifting guide 36 is supported in a squeezed state by the thread locking portion E of the thread regulating guide 32, and is wound around the waist roller 34. Then, the thread Y between the bobbin P and the waist roller 34
is disconnected.

When the yarn Y is wound around the waist roller 34 by the above-described operation, the yarn guide rod 35 is operated, and the yarn guide 36 is reciprocated between d and e, so that the yarn Y is wound around the waist roller 34 while being traversed. taken. When winding by the waist roller 34 is started, the speed of the drive device (not shown) is changed to lower the speed of the processing section (not shown), the drive roller 13, the waist roller 34, and the traverse device 14, respectively. . Then, the cradle 11 is rotated to separate the fully wound bobbin that is in contact with the drive roller 13, the fully wound bobbin is taken out from the cradle 11, and an empty bobbin is attached. When the bobbin replacement work in each cradle 11 is completed, the cradle 1
1 to bring the empty bobbin P into contact with the drive roller 13, and repeat each operation after the winding operation on the waist roller 24, which is the same as at the start of winding, to wind the yarn Y around the bobbin P. The transaction work will continue.

Although the invention can be implemented as described above, it is not limited to the embodiments.

The thread guide device attached to the tip of the thread hooking arm can also be formed of a rod-shaped object.

The waist portion can also be constructed so that the thread is taken up by a suction tube.

As described above, the present invention includes a traverse device for traversing yarn, a cradle for mounting a yarn winding bobbin, and a cradle installed at a position different from the axis of the bobbin to temporarily wind yarn during doffing operations. A winding device consisting of a waist roller and a thread hooking arm rotatably installed between the waist roller and the cradle to hold the thread on the waist roller and guide it to the thread winding section of the bobbin mounted on the cradle. In the machine, while the thread taking arm leads the thread from the waist roller to the bobbin of the cradle, the thread comes into contact with a thread guide section that moves the winding point on the waist roller, and a thread guide section that lifts the thread and moves the flange of the waist roller. The following effects can be achieved by providing a thread support section for passing the thread and a thread regulation guide having a thread locking section for hooking the thread onto the flange of the waist roller.

(1) When rotating the thread hooking arm to guide the thread being wound around the waist roller onto the bobbin, the thread guide section of the thread regulation guide adjusts the winding position of the thread on the waist roller to the end. Since the thread tension is lowered by moving from the thick winding part due to the selvage to the thin winding part at the center of the waist roller, the thread does not break even when the yarn is thin or the winding speed is high, increasing the thread winding success rate to almost 100. %.

(2) By forming a thread guide part, a thread support part, and a thread locking part in the thread regulation guide, the movement of the thread from the waist roller to the traverse area, the movement of the thread from the traverse area to the waist roller, and the winding The thread can be reliably guided to a predetermined thread path during operations such as winding, and the success rate of thread winding can be increased.

(3) Since the yarn regulation guide is simply fixed to the traverse device, etc., its shape and dimensions can be set arbitrarily, and it can be easily applied to any winding machine.

[Brief explanation of drawings]

FIG. 1 is a schematic front view showing one embodiment of a conventional winding machine, and FIG. 2 is a plan view thereof. FIG. 3 is a schematic front view showing one embodiment of the winding machine of the present invention, and FIG. 4 is a plan view thereof. FIG. 5 is an enlarged view showing the mounting portion of the threading arm. FIG. 6 is a view taken along the Z arrow in FIG. 3. 11... Cradle, 12... Bobbin holder, 13... Drive roller, 14... Traverse device, 18... Thread guide, 19, 33... Shaft, 21
... Thread hooking arm, 27 ... Thread guide, 28 ... Thread holding guide, 31 ... Tail release guide, 32 ... Thread regulation guide, 34 ... Waist roller, 35 ... ...
Thread guide rod, 36... Thread guide, 37... Machine stand.

Claims (1)

[Scope of utility model registration request] It consists of a traverse device that traverses the yarn, a cradle that attaches a bobbin for winding the yarn, and a waist roller that is installed at a position different from the axis of the bobbin and that temporarily winds the yarn during doffing operations. In addition, in a winding machine, a thread hooking arm is rotatably installed between the waist roller and the cradle for holding the thread on the waist roller and guiding it to the bobbin winding section of the bobbin mounted on the cradle. a thread guide part that contacts the thread and moves the thread winding point on the waist roller while guiding the thread from the waist roller to the bobbin of the cradle; a thread support part that lifts the thread and causes it to pass through the collar of the waist roller; 1. A winding machine characterized in that a yarn regulation guide having a yarn locking portion is disposed for hooking the yarn to the flange of the waist roller.