JPH07102431A - Bunch winding device in yarn winding apparatus - Google Patents

Abstract

PURPOSE:To obtain a device capable of simply starting or finishing bunch winding in a yarn winding apparatus of a twisting machine or a covering machine and also simply attaching to already installed machines. CONSTITUTION:A reciprocatable raising shaft 17 is mounted on yarn advancing side of a traverser 9 of a winding cheese 4 in which a bunch winding drum 12 is provided on the side, and a return guide 14 reciprocating synchronously with the traverser 9 is provided on the side closer to the drum 12 side than the traverser 9, and a feed guide 18 is provided in a state fixed to the raising shaft 17. The feed guide 18 has top edge 19 having height separated until a position at which the guide 18 is not engaged with the return guide 14 and the traverser 9 and this to edge is inclined in the direction in which bunch winding drum 12 side is lowered and the direction moving in close to the cheese 4. The bunch winding guide 20 is provided so as to receive yarn dropped from the top edge 19 in the position opposite to the bunch winding drum 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yarn winding device such as a twisting machine or a yarn winding machine (covering machine), which temporarily removes the yarn from the cheese and winds it when the yarn is broken or the yarn is replenished.
The present invention relates to a yarn guide device for so-called bunch winding.

[0002]

2. Description of the Related Art A yarn twisting machine or a yarn twisting machine usually twists or covers a yarn released from a bobbin which is vertically mounted, and then winds the cheese horizontally mounted while shaking the yarn with a traverser. It has a structure to take. At the beginning and the end of winding the yarn around the cheese, the yarn withdrawing speed and the rotation speed of the spindle are disturbed, so that a defective yarn such as a covering yarn occurs. Therefore, a bunch winding drum is provided on the side of the cheese so that the yarn is wound on the bunch winding drum at the beginning of the thread so that the thread can be guided to the cheese after the speed becomes constant. Sometimes the yarn is guided from the cheese to the bunch winding drum when the end of the yarn is approaching, so that the yarn with unstable speed is not wound on the cheese. Such bunch winding is also performed when the yarn is cut during winding or when the yarn is replenished when winding the yarn from a plurality of bobbins on one cheese.

When performing this bunch winding, it is necessary to transfer the yarn from the bunch winding drum to the cheese, and from the cheese to the bunch winding drum. This transfer has been conventionally performed by the following means. In the first conventional means, a fixed yarn guide called a bunch winding guide is provided at the position where the yarn enters the bunch winding drum, and the bunch winding guide is manually moved to the traverser and vice versa. Bunch winding is performed by transferring the yarn, which is the most commonly used method.

The second conventional means is such that the reciprocating motion of the traverser is electrically controlled, the traverser reciprocates on the front face of the cheese in synchronization with the rotation of the cheese in the steady state, and the control of the traverser is switched during the bunch winding. This moves the traverser to the position corresponding to the bunch winding drum and holds it, and when ending the bunch winding, moves the traverser from the position of the bunch winding drum to the front of the cheese to control the reciprocating motion during steady state. Bunch winding is performed by returning to.

[0005]

Since the first conventional means starts and ends the bunch winding manually, the work is very complicated, and particularly in a machine having a large number of spindles, the work is very time-consuming. There was such a problem. Further, in the second conventional means, since the traverser needs to be synchronized with the rotation of the cheese by electrical control, the twisting machine and the yarn spinning machine are more expensive than a normal machine that synchronizes the traverser with a cam or the like. However, there is a drawback that control problems are likely to occur.

Therefore, according to the present invention, the start and end of the bunch winding of a large number of cheeses that are synchronously operated can be performed by a simple semi-automatic operation, and the structure is simple and can be easily attached to an existing machine. The challenge is to obtain a bunch winding device.

[0007]

A bunch winding device for a yarn winding device according to the present invention further comprises a traverser 9 provided on the yarn entry side of a cheese 4 for yarn winding having a bunch winding drum 12 attached to the side thereof. A raising / lowering shaft 17 is mounted parallel to the axis of the cheese 4 so as to be capable of reciprocating a predetermined angle on the yarn entry side, and a return guide 14 that reciprocates in synchronization with the traverser 9 is closer to the bunch winding drum 12 than the traverser 9. And a feed guide 18 is fixedly provided on the raising and lowering shaft 17, and the feed guide 18 has a height that separates the yarn to a position where the yarn is not engaged with the return guide 14 and the traverser 9. It has a tip edge 19, which is lower in the bunch winding drum 12 side when viewed from the yarn entering direction, and in the bunch winding drum 12 side when viewed from the direction orthogonal to the yarn running surface. The bunch winding guide 20 is inclined toward the direction of approaching, and is provided at a position corresponding to the bunch winding drum 12 adjacent to the leading edge so as to receive the yarn falling from the leading edge 19. To do. In the bunch winding device in which the bunch winding guide 20 rises and falls simultaneously with the feed guide 18, in the position corresponding to the bunch winding drum 12 when the feed guide 18 falls down,
A second bunch winding guide 21 that stands up to lift the yarn to a position where it does not engage with the return guide 14 can be provided.

[0008]

In order to start the bunch winding, the raising / lowering shaft 17 is detected at a predetermined timing, for example, when it is detected that the yarn counter attached to the twisting machine or the yarn twisting machine has reached a set value and the yarn is near the end. Is rotated to raise the feed guide 18. As a result, the yarn guided and shaken in the groove 10 of the traverser 9 is lifted by the leading edge 19 of the feed guide and comes off the traverser 9. The yarn lifted by the leading edge 19 of the feed guide tries to return to a lower position by its tension, slides to the lower side of the leading edge 19, and the winding force applied from the cheese 4 and the running of the yarn cause
Slide to the side closer to cheese 4. The yarn lifted by the action of both of them immediately moves to the bunch winding drum 12, falls into the bunch winding guide 20 provided adjacent to the feed guide 18, and is stabilized. That is, regardless of the position of the traverser 9, by raising the feed guide 18, the yarn is guided to the bunch winding guide 20 facing the bunch winding drum 12, and the bunch winding is started.

On the other hand, when the bunch winding is finished and the yarn is returned to the cheese, at the timing when the return guide 14 moves beyond the position of the bunch winding guide 20 (the timing when the traverser 9 moves to the bunch winding drum 12 side). The raising / lowering shaft 17 is rotated to bring down the feed guide 18. At this time, the yarn falls to its original lower position, engages with the return guide 14 that returns to the side opposite to the bunch winding drum, and is pushed back to the front surface of the cheese 4. When the traverser 9 moves to the side of the bunch winding drum again, the traverser 9 is removed from the yarn left behind.
Enters from the lateral direction, and this entering action guides the yarn to the groove 10 of the traverser, and returns to the normal bobbin winding state.

When the bunch winding is finished, the feed guide 18 must be tilted at the timing when the traverser moves to the bunch winding drum 12 side. The timing of this fall is such that, for example, at the start of winding or when the yarn is replenished, the operator who replaces the bobbin and restarts the machine looks at the position of the traverser 9 (return guide 14) and manually falls it. However, if necessary, the moving positions of the traverser 9 and the return guide 14 may be detected by a limit switch or the like and tilted. The start and the end of the bunch winding by the above operation are performed by the feed guide 1 facing a large number of cheeses.
Since the hoisting shaft 8 is undulated at the same time by the single hoisting shaft 17, the start and the end of the bunch winding can be simultaneously and simultaneously performed even in a machine having multiple spindles.

The bunch winding guide 20 provided adjacent to the feed guide 18 is in the laid-down position together with the feed guide 18 when a steady yarn winding operation is performed. The second bunch winding guide 21 that stands up when the feed guide 18 is in the lying position is used when performing bunch winding with only one weight, such as when a yarn is broken. In this case, as in the case of the first conventional example described above, the broken cheese is removed from the drive drum and stopped, the yarn is slightly rewound to connect the yarn, and then the second bunch winding guide 21 guides the yarn. Then, the rotation of the cheese is restarted, and when the tension is stabilized, the yarn is manually transferred from the second bunch winding guide 21 to the front of the cheese 4 to end the bunch winding.

[0012]

EXAMPLE An example shown in the drawings will be described below. FIG. 3 is a side view of the yarn winding section of a twisting machine or a compounding machine provided with the bunch winding device of the present invention, and shows a machine in which two yarn winding sections are arranged symmetrically. In FIG. 3, the left yarn winding section is shown in a steady winding state, and the right yarn winding section is shown in a bunch winding state.

A drive drum shaft 2 is rotatably driven on the frame 1 in a direction perpendicular to the plane of the drawing, and the drive drum 3 fixed to the drive drum shaft 2 is in contact with the outer periphery of the cheese 4. The cheese 4 is rotationally driven. Cheese 4
The shaft center of is rotatably supported by an arm pivotally supported by a fulcrum shaft 5 provided in the central portion of the frame 1. Thread 6
Is wound around the cheese 4 through the abutting portion between the cheese 4 and the driving drum 3, and thus the cheese 4
Winding position (winding height) of thread 6 regardless of the diameter of
Is constant.

A traverse rod 7 and a guide rod 8 are provided in front of the cheese 4 (thread entry side) in a direction perpendicular to the plane of the drawing in parallel with each other. It reciprocates with a stroke equal to the width of. A traverser 9 shown in the right side view of FIG. 3 is fixed to the traverse rod 7 and reciprocates, and the guide rod 8 prevents the traverser 9 from collapsing around the traverse rod 7. As shown in FIG. 4, the traverser 9 has a cross section orthogonal to the traveling direction of the yarn 6 and has a smooth mountain shape, and a groove 10 for guiding the yarn is provided at the top thereof. In the steady winding state, the thread 6 is guided in a state of being fitted in the groove 10, and is swung to the left and right in the width direction of the cheese 4 by the reciprocating movement of the traverser 9, and is wound around the cheese 4 while maintaining a predetermined alignment state. Taken.

As shown in FIG. 5, a bunch winding drum 12 is provided on the side of the cheese 4 and rotates with the cheese 4. The traverse rod 7 is provided with a return guide 14 provided at a position closer to the bunch winding drum 12 than the traverser 9 and having a guide wire 13 bent upward to a position higher than the traverser 9 and reciprocally moved together with the traverser 9. ing. When the traverser 9 moves to a position closest to the bunch winding drum 12, the return guide 14
The distance from the traverser 9 is set so as to move to a position beyond the position corresponding to the bunch winding drum 12, that is, to a position on the left side of the bunch winding drum 12 in FIG.

Further in front of the traverse rod 7, a tilting shaft 17 extending in a direction perpendicular to the plane of the drawing is pivotally supported by a bracket 16 extending from the frame 1 so as to be rotatable about 90 degrees (105 degrees in the prototype of the applicant). Has been done. As shown in FIGS. 1 and 2, a guide wire 22 formed by integrally bending a tip edge 19, a bunch winding guide 20 and a second bunch winding guide 21 of a feed guide 18 is fixed to the up and down shaft 17. The illustrated guide wire 22 includes a bunch winding guide 20 and a second guide wire.
The bunch winding guides 23, 24 at the position opposite to the side where the feed guide 18 of the bunch winding guide 21 is sandwiched.
Is provided. This third and fourth bunch winding guide 2
3 and 24 are provided in consideration of the case where the bunch winding drums are provided on both sides of the cheese 4. Figure 1
2 is a front view of the feed guide 18 when it is erected, and FIG. 2 is a plan view of the feed guide 18. As shown in FIG. (Figure 1) And cheese 4 on the bunch winding drum 12 side
It is inclined in the direction close to (Fig. 2). A bunch winding guide 20 is provided at a position where the yarn moved to the end of the feed guide 18 on the side of the bunch winding drum 12 falls, and the bunch winding guide 20 is provided on the left side of FIG.
The position is opposite to. Second bunch winding guide 2
1 is formed at the tip of a guide wire bent in a direction substantially orthogonal to the feed guide 18 and the bunch winding guide 20 so as to stand up when the feed guide 18 falls.
This second bunch winding guide 21 is also a position facing the bunch winding drum 12 in FIG. The heights of the leading edge 19, the bunch winding guide 20, and the second bunch winding guide 21 of these feed guides when they are raised are guided by these guides 18, 20, 21 as shown in FIG. 6 is a height that can be lifted to a height at which the traverser 9 and the return guide 14 are not engaged.

An arm 27 is fixed to the shaft end of the raising / lowering shaft 17 as shown in FIG. 6, and a locking pin 28 extending in the direction perpendicular to the paper surface is provided at the tip of the arm 27 to the rear of the paper surface in the drawing. 17
It runs parallel to. A drive disk 29 driven by an electric motor (not shown) is provided adjacent to the raising / lowering shaft 17, and a lever 30 is fixed to the drive disk. When the thread counter provided in the machine reaches the set value, the electric motor rotates the drive disk 29 to the left in the figure, and the lever 30 causes the locking pin 2 to move.
8 is pushed up and the raising and lowering shaft 17 is rotated to feed the guide 18
To stand up. The electric motor rotates in the opposite direction to return the lever 30 when a predetermined time elapses after the feed guide 18 is erected. When ending the bunch winding, the operator manually tilts the feed guide 18. At this time, lever 30
Has returned to the normal position, the feed pin 18 falls down without the locking pin 28 coming into contact with the lever 30.
The standing position and the fall position of the feed guide 18 are the same as those of the tilt shaft 17.
It is designed to be held by a locking disc that is fixed to the plate and a leaf spring at a fixed position that engages with recesses provided at two positions of this locking disc.

A yarn guide shaft 31 extending in the direction perpendicular to the paper surface of FIG. 3 is mounted further forward of the feed guide 18, and the yarn wound around the cheese 4 is located on the lower side of the bobbin of FIG. It is released from the above, is bent inward at the yarn guide shaft 31 portion, passes above the raising and lowering shaft 17 and the traverse rod 7, and is wound around the cheese 4.

The operation of the device constructed as described above at the start and end of the bunch winding has been described in the section of the above-mentioned action, and therefore will be omitted here. In FIG. 3, the position A of the yarn when being guided by the traverser 9, the position B of the yarn when being bunched, and the position C of the yarn when being bunched by the second bunch winding guide 21 are respectively shown. It is shown.

[0020]

According to the apparatus of the present invention described above,
Bunch winding can be started and ended with a simple operation, and by installing the bunch winding device of the present invention in a twisting machine or a yarn winding machine having a large number of spindles, the work for bunch winding can be significantly saved. . In addition, the structure of the device is extremely simple, and the structure that guides the yarn to the bunch winding drum and cheese by utilizing the tension of the yarn and the operation of the traverser does not require a complicated drive mechanism or control mechanism. There is an effect that it can be easily installed additionally in a spinning machine or a yarn spinning machine.

[Brief description of drawings]

FIG. 1 is a front view of a feed guide in a standing state.

FIG. 2 is a plan view of the feed guide in an upright state.

FIG. 3 is a side view of a yarn winding section of a machine provided with the bunch winding device of the present invention.

FIG. 4 is a schematic diagram showing the relationship between the traverser and the yarn.

FIG. 5 is a schematic plan view showing a mounting position of a return guide.

FIG. 6 is an explanatory view showing a drive mechanism of a tilting shaft.

[Explanation of symbols]

 4 Cheese 9 Traverser 10 Groove 12 Bunch winding drum 14 Returning guide 17 Vertical shaft 18 Feeding guide 19 Tip edge 20 Bunch winding guide 21 Bunch winding guide

Claims (2)

[Claims] 1. A traverser provided on the yarn entry side of a cheese (4) for yarn winding, which is provided with a bunch winding drum (12) on its side.
A tilting shaft that can be reciprocally rotated by a predetermined angle to the thread entry side of (9).
(17) is mounted parallel to the axis of the cheese (4), and the return guide (14) that reciprocates in synchronization with the traverser (9) is located on the bunch winding drum (12) side of the traverser (9). And the feed guide (18) is fixed to the up and down shaft (17), and the feed guide (18) engages the thread with the return guide (14) and the traverser (9). It has a tip edge (19) of a height that separates it to a position where it does not move. When viewed from above, the side of the bunch winding drum (12) is inclined toward the direction of approaching the cheese (4), and the bunch winding guide (20) is located at a position corresponding to the bunch winding drum (12) adjacent to this tip edge. A bunch winding device for a yarn winding device, characterized in that it is provided so as to receive the yarn falling from the tip edge (19). 2. The bunch winding device according to claim 1, wherein the bunch winding guide (20) rises and falls simultaneously with the feed guide (18).
A second bunch winding guide that stands up to lift the yarn to a position that does not engage with the return guide (14) at a position corresponding to the bunch winding drum (12) when the feed guide (18) is laid down.
The bunch winding device of the yarn winding device according to claim 1, wherein (21) is provided.