Warp sinking prevention single-beam let-off tension compensating device

Abstract

The invention discloses a warp sinking prevention single-beam let-off tension compensating device. Both a warp group S for circulating small weaving tissues and a warp group D for circulating big weaving tissues are uniformly withdrawn from a single beam and pass through a single back rest; a fine adjusting motor is connected with a reverse chain control rotating shaft; a pair of hoisting rings, a pair of tension springs and a lifting rod hung below the springs are symmetrically and fixedly arranged on a spring fixing rod; a pair of driving chain wheels meshed with driven reverse chains is symmetrically and fixedly arranged on the reverse chain control rotating shaft; the tail end of each driven reverse chain is connected with each corresponding hoisting ring; the lifting rod is positioned at the front upper part of the back rest; a detector connected below the spring fixing rod corresponds to one end face of the lifting rod and is connected with a center processor by a signal guide circuit; the detector is used for detecting the relative displacement of the detector and the lifting rod so as to determine the load capacity applied to the lifting rod by the warp group D; the center processor is used for controlling the run-stop action of the fine adjusting motor according to the load capacity; and the device can take an effect of preventing the warp group D from being sunk.

Description

【Technical field】 [0001] The invention belongs to the technical field of weaving warp yarn tension control, and in particular relates to a single warp beam warp let-off tension compensation device for preventing warp sinking. Warp yarn set S for smaller weave loops and warp yarn set D for larger weave loops with similar weaving loop numbers. 【Background technique】 [0002] The electronic warp let-off device configured by the loom is known in the prior art, and the warp yarn sheet withdrawn by a single weaving (warp) shaft controlled by the electronic warp let-off device is interwoven with weft yarn to weave fabric through a single back rest. [0003] According to the actual needs of fabric pattern design, the number of weaving weaving cycles is sometimes similar but not the same. When the warp yarn group D used for the larger weaving tissue cycle and the warp yarn group S used for the smaller weaving tissue cycle are used as interweaving warp yarns, the warp yarn group S us...

AI Technical Summary

Problems solved by technology

[0007] 2. The warp let-off ratio of the upper and lower warp beams needs to be adjusted in double warp beam weaving. When the weaving cycle numbers of the two warp yarn groups are similar, the synchronization adjustment accuracy of the upper and lower warp beams is required to be high. It is very difficult and takes a long time to adjust, especially it brings a lot of troubles in terms of time and cost for small order production

[0008] 3. The upper warp let-off device occupies a large space, and the straight warp of the upper back beam is relatively thick, which brings great interference to the operator's warp breaking (head) operation, and the handling of broken warp joints is inconvenient, which affects work efficiency

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