SU1248923A1 - Device for tightening thread-like material on winding machines - Google Patents

Description

The invention relates to the textile industry, primarily for tensioning yarns on warpers, winding machines, as well as other machines.

The purpose of the invention is to increase reliability.

The drawing shows the device, cut, two projections.

Inside the annular magnetic circuit I of the electromagnet above the winding 2 control

the tension value is adjusted by the adjusting core 7, the position of which is fixed by the nut 8. The moving thread 5 moves the brake plate 4, pressing it to the inner side wall of the ring magnetic circuit 1. The path of the thread 5 is displaced from the axial center of the washers 3 and 4 and causes rotation 4. The rotation frequency depends on the displacement of the trajectory of the thread 5 from the center of the 3 squares and 4 and

3. A friction sandwich between the surface of the ring and the ring. The upper side wall of the ring magnetic circuit 1 is made above the steel brake disc 4, which is placed inside it and lies loosely on the support washer 3, and is in contact with its inner surface. For filling and passing the filament 5 on the side wall of the annular magnetic circuit 1, a slot 6 is made at the level of the contact surface of the shields 3 and 4. The annular magnetic circuit 1 has an adjusting core 7 sec.

The magnetic core 1 and the brake washer 7. The displacement of the thread 5 from the center can be adjusted by changing the positions of the thread-guiding eyes 10 and 11. The brake washer 4 rotates with a low frequency from the fact that it is rubbing against the wall of the ring magnetic circuit 1. The frictional force is directed against the rotation torus A washer 4p dramatically reduces its frequency. At a low frequency of rotation of the washer. Washer 4, the thread 5 retains its

nut 8 that fits his position. From above. the mechanical properties are not erased; a protective cover 9 is installed on the outboard magnetic core 1. In the case I, the threading eyes 10 and 11 are bred, with the possibility of adjusting their angular position relative to the axis of the shields 3 and 4.

The device operates as follows: 25 Thread 5 enters through the entrance eye 11, passes between the bearing and brake washers 3 and 4 and exits through the output eye 10. The cauterizing force is created by connecting the supply voltage to the winding 2 of the electromagnet control. By changing the supply voltage, you can set the tension of the thread 5 at the output of the device in a large range, and

During the course of the device, it does not vibrate, the removal of the nut is much better, the thread is prevented from running out from under the brake disc, the device works reliably and stably. In addition, the direct contact between the brake disc and the wall of the annular magnetic circuit prevents the occurrence of static charges, since the charge of the donor carriers (steel plate 4 and the annular magnetic circuit 1) is shorted. This ensures the safety of operation and maintenance of the control 30 during operation. The working part of the device from the top is protected by a cover 9 from dust and random small substances.

the tension value is adjusted by the adjusting core 7, the position of which is fixed by the nut 8. The moving thread 5 moves the brake plate 4, pressing it to the inner side wall of the ring magnetic circuit 1. The path of the thread 5 is displaced from the axial center of the washers 3 and 4 and causes rotation 4. The rotation frequency depends on the displacement of the trajectory of the thread 5 from the center of the 3 squares and 4 and

The magnetic core 1 and the brake washer 7. The displacement of the thread 5 from the center can be adjusted by changing the positions of the thread-guiding eyes 10 and 11. The brake washer 4 rotates with a low frequency from the fact that it is rubbing against the wall of the ring magnetic circuit 1. The frictional force is directed against the rotation torus A washer 4p dramatically reduces its frequency. At a low frequency of rotation of the washer. Washer 4, the thread 5 retains its

mechanical properties are not erased, you

During the course of the device, it does not vibrate, the removal of the nut is much better, the thread is prevented from running out from under the brake disc, the device works reliably and stably. In addition, direct contact between the brake disc and the wall of the annular magnetic circuit prevents the occurrence of static charges, since the charge of the donor carriers (steel clamp 4 and the annular magnetic circuit 1) is shorted. This ensures the safety of operation and maintenance of the regulation during operation. The working part of the device from the top is protected by a cover 9 from dust and random small substances.

Claims (1)

A device for tensioning filament material on winding machines, containing two coaxial and contacting washers, the upper of which is made of magnetic material and the lower is of glass ceramic and is placed on an annular magnetic circuit connected through a control winding with an adjustable voltage source, and thread guide eyes, installed with an offset relative to the axis of the washers, characterized in that, in order to increase the reliability of operation, the upper washer is freely installed inside the annular magnetic circuit contact with the inner side surface, wherein the latter is made to pass through slit yarns at washers contacting plane and the thread guide eyes are mounted for adjustment of their angular position about the axis washers. Yu QO SO