SU1735446A1 - Apparatus for regulating tightening of main filaments in looms - Google Patents

Abstract

SUMMARY OF THE INVENTION: A device for adjusting the tension of the main yarns comprises a rock mounted on the arms of the submarine and connected via a correcting means to the brake disk, the direction of rotation of which is opposite to the direction of rotation of the disk kinematically connected to the beam. The slot washer is located coaxially on the spring, the ends of which are outside of the slot washer, and the slot washer can move along the spring to change the number of turns of the spring on either side of the slot washer. 2 з.п f-ly, 1 ill.

Description

The invention relates to textile machinery and can be used in devices for adjusting the tension of the main yarns on a loom.

The purpose of the invention is to increase the sensitivity of the device to changes in the tension of the warp threads.

The drawing shows the proposed device.

The device for adjusting the tension of the main yarns contains 1, 1, main threads 2, which are circumscribed by the rock 3, mounted on brackets 4, mounted rigidly on a rock sheet. The spring 5 acts on the lever 6. The cam 7 rigidly fixed on the axis of the sub-roller 8, through the double-arm lever 9 rigidly fixed on the fixed axis 10, acts on the driving disk 11 by means of a slot washer 12 coaxially mounted on the spring 13. The upper arm of the lever 9 is spring-loaded spring 14 Leading disk

The 11 of the friction clutch interacts with the driven disk 15, kinematically associated with the belay 1. The tension of the main threads is adjusted by imposing or increasing the spring 13 with the nut 16.

The tension adjustment of the main threads is carried out as follows.

Under the action of tensioning the warp threads when surfing and yawning, the weaving loom 1 turns in the direction of winding the warp.

Since the drive disk 11 rotates while the machine is running in the opposite direction to the direction of rotation of the driven disk 15. then with decreasing tension of the main threads in the spade, it leads the driven disk 15, attacks as the last kinematically connected with the beam 1, the main threads 2 is wound on the heel until the tension force of the warp threads is balanced by the braking force, i.e. pro (L

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There is a stabilization of the tension of the main threads.

When increasing the tension of the warp threads, the rock 3, lowering down and overcoming the resistance of the spring 5, will turn the cam 7 at some angle, which will turn the two shoulders lever 9 clockwise, the latter through the slot washer reduces a certain force of the spring 13 on the drive disk 11 As a result, the braking torque in the friction clutch decreases and the beam can turn through a large angle to compensate for the excess tension of the main threads. When the tension decreases, moving upward through the cam 7, with the help of the spring 14, rotates the double-arm lever 9 counterclockwise, thereby increasing the force of the spring 13 on the driving disk 11, as a result, the braking torque increases in the friction clutch.

Moving the slot washer 12 along the spring 13, the spring stiffness is adjusted and set in the area between the slot washer and the drive disk, thereby providing the necessary braking torque in the friction clutch depending on the angle of deflection of the rock. When moving the slot washer 12 along the spring 13, the refueling tension of the base does not change, as it is supported by the nut 16. Therefore, the proposed device ensures a smooth change of the braking torque in the friction clutch

not only for the cycle of the machine, but also for the entire period of operation of the weaving mill.

When using the proposed device, the uniformity of tension of the warp threads increases and its breakage is reduced, the reliability of operation with a significant simplification of the moving system also increases the rock.

Claims (3)

1. A device for adjusting the tension of the main threads on a weaving machine, containing lava and rock, kinematically connected with a disk friction clutch, the driving disk of which is mounted rotatably in the direction opposite to the direction of rotation of the driven disk connected with the wrap, and the rock is connected with the drive disk by a slot washer and a spring associated with it to press the clutch plates, characterized in that, in order to increase the sensitivity to changes in the tension of the warp threads, the slot washer is located coaxially and the spring, and one end of the spring is in contact with the clutch disk. 2. The device according to claim 1, wherein the slot washer is mounted to move along the spring to change the spring stiffness in the area between the slot washer and the drive disk of the coupling. 3. Pop.1 device, characterized by the fact that the rock is associated with a slot washer cam and two-arm lever. /