JPS5940743B2 - Yarn winding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a yarn winding device capable of simultaneously winding a plurality of yarns.

When winding yarn onto bobbins attached to multiple spindles arranged in parallel, each spindle can be rotated by a single drive motor via an appropriate power transmission means. will be driven at substantially the same rotational speed, so that each bobbin will be wound with a mutually homogeneous yarn package.

However, as the number of spindles increases or the rotational speed increases and the load increases, this can be reduced to 1.
A problem arises in that the capacity of the motor must be significantly increased in order to meet the requirements with one drive motor. Therefore, each of the multiple spindles has an independent synchronization unit.
If the drive unit is provided with a zero motor, each spindle can be rotated at the same rotational speed without increasing the capacity of the motor, and the above problem is solved.

However, although this mechanism works well in the low rotational speed range, due to the inherent structural limitations of the synchronous motor, when the rotational speed reaches 10,000 to 12,000 p, m, there is virtually no winding. It becomes impossible to take it. In other words, since the synchronous motor is configured so that the permanent magnet rotates together with the rotor, the rotation speed is 10,000 to 12,000 degrees Fahrenheit, and the p
, m, the permanent magnets will fly outward due to centrifugal force and the motor will be destroyed. The above problem of permanent magnet protrusion can be solved by replacing the synchronous motor with an induction motor, but with an induction motor!
No. 5 has the problem that the rotational speed of each spindle is not constant due to slippage.

For example, even if there is a variation of 0.1 inch between the slip rates of each induction motor, there will be a difference of about 5 g in yarn tension.
It becomes virtually impossible to hoist the cage.

The purpose of the present invention is to solve the above-mentioned problems, and when winding homogeneous yarn packages onto a plurality of spindles,
Despite high-speed winding, it is possible to drive multiple spindles at substantially the same rotational speed without increasing the drive capacity or causing damage. A yarn winding device according to the present invention which achieves the above-mentioned object is to provide a yarn winding device that can drive a plurality of spindles arranged in parallel with each other using independent induction motors. The invention is characterized in that the driving parts of the induction motors are connected to each other by a positive transmission means.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Details will be explained below with reference to embodiments of the present invention shown in the drawings.
FIG. 1 is a front view of a yarn winding device which is an embodiment of the present invention;
FIG. 2 is also a side view.

In the figure, 1A and 1B are frames arranged on the left and right, and each frame has four induction motors 2A,..., 2A and 2B,..., 2B arranged vertically and glued to each frame. Further, spindles 3A, . . . , 3A and 3 are driven by these induction motors 2A, . . . , 2A and 2B, .
B, . . . , 3B are driven.

Left and right spindles 3A,..., 3A and 3B,...
. , 3B are arranged in parallel, and are arranged so that the lower spindles are sequentially shifted forward in the front-rear direction. Spindles 3A,..., 3A} and 3B,..., 3B have bobbins 4A,..., 3B, respectively.
4A and 4B, . . . , 4B are installed, and in the illustrated embodiment, the bobbins 4A . ..., 4A is winding yarn Y, and the left spindle group 3B, ..., 3B's bobbin 4B, ...
..., 4B is waiting for the next winding. 7 is the traverse frame This traverse frame 7
is disposed between the left and right frames 1A, 1B, and is configured to traverse back and forth along the axial direction of the spindles 3A, 3B.

On the traverse frame 7, each spindle 3A, 3B
Yarn guide sections 10, . . . , 10 each consisting of a main arm 8 and a sub arm 9 are provided at regular intervals at positions corresponding to the main arm 8 and the sub arm 9, respectively. The main arm 8 is rotatably supported on the traverse frame 7 about a shaft 8a, and the sub arm 9
is rotatably supported on the other end side of the main arm 8 about a shaft 9a. A thread guide 11 is provided at the other end of the sub arm 9.As shown in FIG.
,..., 3A bobbin group 4A,... Yarn Y on 4A
When winding up a main arm 8, the main arm 8 is set up vertically, and the sub arm 9 at its tip is tilted slightly to the right at its lower end, and the thread Y is guided by the thread guides 11, . . . , 11. Along with the back and forth traverse movement of the traverse frame 7, the bobbin 4A. ...
, 4A.

When the right bobbin group 4A, . The thread guided by the guide 11 is brought into contact with the empty bobbin 4B on the left side and captured by the thread gripping section on the empty bobbin 4B. When the yarn is caught on the empty bobbin 4B, the yarn between the empty bobbin 4B and the fully wound bobbin 4A is cut by the yarn tension, and thereafter the yarn is wound up toward the empty bobbin 4B. Further, the main arm 8 returns to the vertical state again, and the sub arm 9 is tilted slightly to the left for the subsequent traverse movement. Tension detection device 1 for one of the plurality of yarns wound on the bobbin 4A,..., 4A or 4B,..., 4B
2 is provided, and the tension signal detected by this tension detection device 12 is transmitted to all induction motors 2A, . . . , 2A or 2B, .
The rotation speed of 2B is controlled. At the rear ends of the drive shafts of the induction motors 2A and 2B, gears 5 having meshing portions at two places, front and rear, are fixedly installed, respectively, and the drive shafts of the vertically adjacent induction motors are connected to each other through the gears 5 by a timing belt. 6.

The timing belt 6 constitutes a positive transmission means that meshes with and interlocks with the gear 5. Therefore, the timing belt 6 and the gear 5 ensure that adjacent drive shafts have the same rotational speed. They will hold each other in check.
That is, although the positive transmission means between the timing belt 6 and the gear 5 does not substantially transmit power for driving the spindle,
This acts to cancel out the slippage occurring in the induction motors 2A, 2B so that both rotate at substantially the same rotational speed. Therefore, a plurality of spindles 3A,...
・, 3A or 3B, ..., 3B are each driven by a plurality of induction motors 2A, ..., 2A or 2B, ..., 2B, but due to slippage between the induction motors. Variations are eliminated through positive transmission means,
Each induction motor rotates at substantially the same rotational speed.

Moreover, as in the case of a synchronous motor, the possible rotational speed is 1
0000~12000r. p. m. Since the rotational speed is not limited to , high-speed winding exceeding this rotational speed is also possible. Furthermore, with the intervention of the positive transmission means as described above, the thread tension for controlling the rotational speed of the induction motor does not need to be picked up for all the plurality of threads. It becomes possible to detect the tension of one yarn as a representative value. As described above, the yarn winding device according to the present invention drives a plurality of spindles arranged in parallel with each other by independent induction motors, and also connects the driving parts of the induction motors to each other by a positive transmission means. By using an induction motor, it is possible to perform high-speed winding without causing damage to the motor, and by providing each spindle independently, there is no need to increase the motor capacity. (And, by the intervention of the positive transmission means, variations in rotational speed between the motors due to slippage peculiar to induction motors are eliminated, making it possible to wind up a uniform package onto each weight.

[Brief explanation of drawings]

The figure shows a yarn winding device according to an embodiment of the present invention.
The figure is a front view, and FIG. 2 is a side view. 2A, 2B... Induction motor, 3A, 3B... Spindle, 4A, 4B... Spindle, 5... Gear (positive transmission means), 6... Timing belt (positive transmission means), 7...Traverse frame, 8...Main arm, 9...Sub-arm, 11...Thread guide.

Claims (1)

[Scope of Claims] 1. A yarn characterized in that a plurality of spindles arranged in parallel are driven by independent induction motors, and the driving parts of the induction motors are connected to each other by positive transmission means. winding device. 2. A tension detector is provided to detect the tension of at least one yarn among the plurality of yarns wound by the plurality of spindles, and the rotational speed of the plurality of induction motors is simultaneously controlled by the tension signal of the tension detector. A yarn winding device according to claim 1. 3. The yarn winding device according to claim 1 or 2, wherein the positive transmission means is a timing belt mechanism.