JPS6316686Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a winding machine equipped with a threading mechanism.

As a winding machine having a threading mechanism, a winding bobbin mounting cradle 1 as shown in Figs. 1 and 2 is used.
, a bobbin drive device 2 and a traverse device 3, a waist roller 4 is provided opposite the end position of the winding bobbin, a swing fulcrum guide 5 of the traverse device 3 is placed upstream of the waist roller 4, and A thread hooking arm 6 is provided to move between the swinging fulcrum position and the thread switching position of the waist roller 4, and also transfers the thread from the waist roller 4 to the winding bobbin B, between the winding bobbin B and the swinging fulcrum guide 5. A winding machine having the following configuration has been proposed.

However, in the winding machine with the above configuration, the rotating shaft of the thread hooking arm is provided between the traverse device 3 and the waist roller 4, so the width of the machine platform is large and the distance from the working position to the winding bobbin B is long. The work of removing a fully wound bobbin was extremely difficult and dangerous. In addition, in order to thread multiple winding machines at once, multiple thread hooking arms 6 are attached to one rotating shaft 7, so something may get caught on one of the thread hooking arms 6. If the threading arm 6 is rotated, the other threading arm 6 cannot be rotated and the threading operation cannot be performed, and the threading arm 6 may be damaged.

The present invention solves the above-mentioned drawbacks, and allows multiple threading arms to rotate simultaneously. When an external force is applied to a given threading arm, only that threading arm stops, while the other threading arms continue to rotate. This was obtained as a result of a study aimed at making it possible.

That is, the present invention has a plurality of cradles arranged in the longitudinal direction of the machine, a traverse device installed adjacent to each cradle, a waist section for temporarily taking up the yarn during doffing, and a In a winding machine consisting of a thread hooking arm that guides thread to a winding bobbin of a cradle, the rotation fulcrum shaft of the thread hooking arm is inserted through a traverse cam box of a traverse device, and the thread hooking arm is rotated. The present invention provides a winding machine rotatably mounted on a fulcrum shaft via a friction member and a spring.

A schematic front view of an embodiment of the winding machine 1 of the present invention is shown in FIG.
FIG. 4 shows a side view thereof, and FIG. 5 shows an enlarged cross-sectional view of the mounting portion of the threading arm, and its structure will be explained based on the drawings.

Reference numeral 11 denotes a cradle, on which the bobbin holder 12 is rotatably mounted, and rotates as the amount of yarn winding increases. 13 is a driving roller and bobbin holder 1
The winding bobbin B attached to the winding bobbin B is brought into contact with the winding bobbin B and rotated. 14 is a traverse device, and 15 is a traverse cam box. A scroll cam 16 is rotatably provided in the traverse cam box 15. 17 is a tapered builder with grooves in the longitudinal direction and a traverse cam box 15
It is rotatably provided. 18 is a thread guide which connects the scroll cam 16 and the taper builder 1.
7 and reciprocates as the scroll cam 16 rotates. Reference numeral 19 denotes a shaft, which is provided through the traverse cam box 15, and performs reciprocating and rotational movements. 20 is a cam and the shaft 1
9 and comes into contact with the taper builder 17, and the reciprocating movement of the shaft 19 rotates the taper builder 17. 21 is a thread hooking arm, and a thread holding guide 27 is attached to the tip thereof. Reference numeral 22 denotes a presser and is fixed to the thread hooking arm 21 with a screw. A bearing 23 is mounted on the traverse cam box 15 and holds the shaft 19 so as to be reciprocating and rotatable. A thrust bearing 24 is located between the thread hooking arm 21 and presser 22 and the traverse cam box 15, and performs positioning in the longitudinal direction of the shaft. 2
Reference numeral 5 denotes a spring, which is mounted inside the presser tool 22. Reference numeral 26 denotes a friction member which is integrally fitted onto the shaft 19 and is rotatably attached to the thread hooking arm 21 so that the shaft 1 is rotated by the pressing force of the spring 25.
Rotate together with 9. Stoppers 28 and 29 are fixed to the traverse cam box 15 and restrict the rotational position of the thread hooking arm 21. Reference numeral 30 denotes a shaft, which is rotatably provided on a machine stand 35. 31
is a waist roller which rotates integrally with the shaft 30 and is mounted so that it can slip when an external force is applied to the waist roller 34. Reference numeral 32 denotes a thread guide rod, which is provided on the machine base 35 so as to be able to freely move back and forth, and a thread guide 33 is attached thereto. Reference numeral 34 denotes a yarn regulating plate, which is used to form a yarn path when winding around the waist roller 31.

A thread threading operation in the winding machine having the above configuration will be explained.

When starting to wind the yarn, the winding bobbin B is attached to the bobbin holder 12 of the cradle 11 and brought into contact with the driving roller 13 with a predetermined surface pressure. Next, the driving device (not shown) is operated to rotate the driving roller 13,
The waist roller 31 is rotated at a low speed, and the yarn guide 18 of the traverse device 14 is reciprocated at a low speed. In this state, the yarn Y is wound around the waist roller 31. At this time, the yarn shifting guide 33 is moved between d and e, which are the winding widths of the waist roller 31, to move the yarn Y back to the swing fulcrum side.
In this state, the yarn Y is threaded to an upstream processing section (not shown). Before the yarn Y is wound around the waist roller 31, the yarn holding guide 27 attached to the threading arm 21 is guided by the yarn guide rod 32.
The yarn is then kept waiting at a position a below the yarn path leading to the waist roller 31 via the processing section 31. When the yarn threading operation to the processing section (not shown) is completed, the driving device (not shown)
The driving roller 13 and the waist roller 31 are accelerated.
and the traverse device 14 are synchronized to achieve a predetermined winding speed. When the drive roller 13 and the waist roller 31 reach a predetermined speed, the reciprocating movement of the yarn guide rod 32 is stopped and the yarn shifting guide 33 is stopped at position e to regulate the yarn path. When the yarn path is regulated by the yarn shifting guide 33, the shaft 19 is rotated to rotate the threading arm 21 integrally with the threading arm 21 via the friction member 26, and the yarn holding guide 27 is moved from position a to position b. When the yarn holding guide 27 moves toward b, it holds the yarn Y located between the yarn guide rod 32 and the waist roller 31. The yarn holding guide 27 holds the yarn Y and moves the yarn holding guide 27 to position b.
When the shaft 19 is rotated, the thread guide 21 moves to the position f, and the thread guide 33 moves from the position e to the position C, releasing the position restriction at Y. The thread path is formed by the swing fulcrum guide (not shown) and the thread holding guide 27.
When the thread holding guide 27 abuts against the stopper 28,
At this time, the shaft 19 rotates further, but since the threading arm 21 abuts against the stopper 28, slippage occurs between the friction member 26 formed integrally with the shaft 19 and the threading arm 21, causing only the shaft 19 to rotate a predetermined angle and then stop. When the thread holding guide 27 reaches position b, the yarn Y is caught in a notch provided in the bobbin holder 12 by the thread path formed by the thread holding guide 27 and the swing fulcrum (not shown) and is wound around the take-up bobbin B, and at the same time, the waist roller 31
The yarn Y between is cut. When the yarn Y is wound around the winding bobbin B, it moves toward the swing fulcrum (not shown) due to the yarn tension, engages with the reciprocating yarn guide 18, and is traversed and wound around the winding bobbin B. When the yarn holding guide 27 moves to position b, the shaft 19 is reciprocated at a predetermined speed, and the taper builder 17 is intermittently rotated by the cam 20 attached to the shaft 19, changing the reciprocating length of the yarn guide 18 and breaking the end surface. When winding by the winding bobbin B begins, the operation of the shaft 30 is stopped and the rotation of the waist roller 31 is stopped. The waist roller 31
When the winding operation of the yarn Y is stopped, the waist yarn that has been wound up so far is removed. During the winding operation of the yarn Y, the yarn holding guide 27 is on standby at the position b, and the yarn pulling guide 33 is on standby at the position C. When the set amount of yarn Y is wound onto the winding bobbin B, the shaft 30 is operated to rotate the waist roller 31 and also rotate the reciprocating shaft 19. The rotation of the shaft 19 causes the yarn hooking arm 2
The thread guide 27 is moved in the direction a by the thread hooking arm 21 abutting against the stopper 29. At this time, the shaft 19
The threading arm 21 rotates further until the stopper 28
Since the sliding shaft 19 is in contact with the thread hook arm 21, only the sliding shaft 19 rotates a predetermined angle between the friction member 26, which is provided integrally with the shaft 19, and the thread hook arm 21, and then stops. When the thread holding guide 27 reaches position a, the thread guide rod 32 is operated to move the thread shifting guide 33, which is at position C, to position d. At this time, when the thread shifting guide 33 moves the thread Y to position d, the thread regulating plate 34 and the thread shifting guide 33 form a thread path, so that the waist roller 3
The yarn Y is hooked onto a notch provided at the end of the bobbin 1 and wound around the waist roller 31, and at the same time the yarn Y is cut between the bobbin B. When the yarn Y is wound around the waist roller 31, the yarn guide rod 32 is operated to reciprocate the yarn shifting guide 33 between d and e, so that the yarn Y is traversed and wound around the waist roller 31.
When winding by the waist roller 31 is started, the speed of the driving device (not shown) is changed over to the driving roller 13 and the waist roller 31 together with the processing unit (not shown).
1 and the traverse device 14 are each set to a low speed.
When the drive unit (not shown) switches to a low speed, the cradle 11 rotates and the drive roller 13
When the replacement of the full bobbin with an empty bobbin for each cradle 11 is completed, the operation of winding the bobbin around the waist roller 31 and subsequent operations in the winding start operation are repeated to perform yarn threading.

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

Γ The shaft for rotating the threading arm can also serve as the drive shaft for breaking the end face, but a shaft dedicated to the threading arm may be provided to penetrate the traverse cam box.

Γ The threading arm and the shaft are preferably attached via a friction crack mechanism or the like so that the threading arm and the shaft are not fixed and can rotate together with the shaft, and when an external force is applied to the threading arm, only the threading arm can be rotated.

The Γ waist portion may be a waist roller as in the embodiment, but it may also be configured to be taken up by a suction tube or the like.

Γ There are no particular limitations on the shape of the thread hooking arm and the thread holding guide, and the thread located between the thread guide section provided upstream from the waist section is wound around the take-up bobbin through a notch in the bobbin holder, etc. Any shape that can be used will suffice.

The spring connecting the Γ shaft and the thread hooking arm may be a dish-shaped spring or a coil spring. Further, the friction member may be a hard synthetic resin molded product or may be formed from an oil-impregnated sintered alloy.

As described above, the present invention includes a plurality of cradles arranged in the longitudinal direction of the machine, a traverse device installed adjacent to each cradle, a waist section for temporarily taking over the yarn during doffing, and a traverse device installed adjacent to each cradle. In a winding machine consisting of a thread hooking arm that guides the thread from the waist portion to the winding bobbin of the cradle, the pivot shaft of the thread hooking arm is inserted through the traverse cam box of the traverse device, and the thread hooking arm is attached to the traverse cam box of the traverse device. By rotatably mounting the rotary fulcrum shaft via a friction member and a spring, the following effects can be achieved.

(1) Since multiple threading arms are rotatably attached to one rotation fulcrum shaft via a friction member and a spring, one of the threading arms may become abnormal and rotate. Even if this becomes impossible, the other threading arms can rotate together with the rotation fulcrum shaft to perform normal threading operations.

(2) The thread hooking arm is rotatably attached to the rotation fulcrum shaft,
The threading arm is positioned by a stopper installed on the traverse cam box, etc.
Accurate positioning is possible regardless of the accuracy of assembly to the rotation fulcrum.

[Brief explanation of the drawing]

FIG. 1 is a schematic front view showing one embodiment of a conventional winding machine, and FIG. 2 is a side 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 side view thereof. FIG. 5 is an enlarged sectional view of the mounting portion of the threading arm. 11... Cradle, 12... Bobbin holder, 13... Drive roller, 14... Traverse device, 15... Traverse box, 16... Scroll cam, 17... Taper builder, 18...
... Thread guide, 19, 30 ... Shaft, 20 ... Cam,
21... thread hooking arm, 22... presser, 23... bearing, 24... thrust bearing, 25... spring, 26... friction member, 27... thread holding guide,
28, 29...stopper, 31...waist roller, 32...thread guide rod, 33...thread guide, 34...thread regulation plate, 35...machine stand.

Claims (1)

[Scope of utility model registration request] A traverse device in which a plurality of cradles are arranged in the longitudinal direction of the machine and adjacent to each cradle, a waist part for temporarily taking up the yarn during doffing, and a winding of the cradle from the waist part. In a winding machine consisting of a thread hooking arm that guides thread to a bobbin, the rotational fulcrum shaft of the threading arm is attached to the traverse cam box of a traverse device by penetrating it, and the threading arm is frictionally attached to the rotational fulcrum shaft. A winding machine characterized by being rotatably mounted via a member and a spring.