Device for controlling tension dynamic balance of warp thread of loom

Abstract

The invention belongs to the fitting device of a loom and particularly relates to a device for controlling tension dynamic balance of warp threads of the loom. The device comprises a resistance disc (5), a resistance rope (6), a spring (9) and a fixed bracket (7); the resistance rope (6) is connected with the resistance disc (5); the fixed bracket (7) is shaped like T or 7; two ends of a transverse rod of the fixed bracket (7) are connected with a stander (1) and a guide roller (8) respectively; the lower end of a vertical rod of the fixed bracket (7) is connected with a tension balance bracket (2); the vertical rod body is connected with a displacement adjusting device (4); one end of the resistance rope (6) is connected with the displacement adjusting device (4) and the other end thereof is connected with the external end of the tension balance bracket (2); the tail end of the external end of the tension balance bracket (2) is connected with a tension balance roller (12); and the tension balance bracket (2) is connected with the fixed bracket (7) by a spring displacement adjusting device (10) and the spring (9). The device achieves the object of dynamically adjusting balance, generates an error of less than 0.25 percent during the operation process, and has small swing amplitude and stable tension control.

Description

technical field [0001] The invention belongs to an accessory device of a loom, and relates to a warp thread tension control device, in particular to a loom warp thread tension dynamic balance control device. Background technique [0002] The warp tension adjustment device of the existing loom, especially the warp tension adjustment device in the elastic band weaving process, mostly adopts the mode of heavy hammer suspension to control the tightness of the tension, such as tensioning the friction resistance rope by hanging the weight on the swing frame, or by The warp wheel directly hangs the weight to generate damping to achieve the purpose of controlling the tension of the warp. Since the warp head of the warp head changes from large to small during the weaving process, it is necessary for the weaver to increase or decrease the weight of the weight in a timely manner according to the weaving experience to ensure the consistency of the warp tension. However, in the process ...

AI Technical Summary

Problems solved by technology

However, in the process of high-speed operation of the loom, its small difference will have a very large impact, so it is not easy to control and adjust the warp tension by increasing or decreasing the weight of the weight based on experience alone. Utilize the interaction between spring and friction resistance rope to adjust the warp tension technology, such as the application number: 200610086246.0, the invention technology named "A Tension Control Device", fix the end of the brake band crossed on the frame, and the brake band The other end is fixed on the non-hinged part of the swing arm, so that the change of the unwinding tension of the silk fabric on the pan head is fed back to the swing angle of the swing roller, and the swing of the swing roller drives the tightness of the brake band to further change the friction between the brake wheel and the brake band , so as to ensure that the tension of the silk fabric coming out of the fixed roller keeps fluctuating around the set value, but the distance of the swing axis produced by this technology is too large, the resulting error value is large, up to 1%, and the tension control is unstable

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