Warp feeding device of rapier loom

Abstract

The invention provides a warp feeding device of a rapier loom. The warp feeding device comprises a supporting seat. Multiple supports are evenly distributed on the upper surface of the supporting seat. A mandrel is installed between every two adjacent supports. The middle upper portion of each mandrel is sleeved with multiple thread clamping pieces, and an adjusting gasket and a spring are sequentially arranged between the thread clamping piece on the outermost side of each mandrel and the support adjacent to the thread clamping piece. The side face of each mandrel is provided with a thread guide piece. Only two pieces of warp can penetrate through the distance between every two adjacent thread clamping pieces, the warp makes contact and rubs with the corresponding adjacent thread clamping pieces, and one or more adjusting gaskets are arranged between the thread clamping piece on the outermost side of each mandrel and the spring adjacent to the thread clamping piece. The warp feeding device has the advantages that full mechanical control is adopted, cost is low, repair and maintenance are easy and convenient, and operation of professionals is not needed; tension is controlled through the springs, reliability and stability of the warp feeding device are very high, and faults are not likely to happen; the springs and the adjusting gaskets are used for adjusting friction force between the thread clamping pieces and the warp, so that the tension of the warp is adjusted.

Description

technical field [0001] The invention belongs to the technical field of rapier looms, in particular to a let-off device of a rapier loom. Background technique [0002] The rapier loom is mainly composed of a shedding mechanism, a weft beating mechanism, a weft insertion mechanism, a let-off and a take-up mechanism, etc., and it weaves fabrics by continuously sending out warp and weft yarns. After the fabric is formed, the fabric is pulled away from the weaving fell in time and wound on the cloth roller. This mechanism that completes warp yarn release and fabric winding is called the warp let-off mechanism and the take-up mechanism respectively. [0003] In the prior art, most rapier looms use an electronic warp let-off and take-up mechanism composed of an AC servo motor. The electronic warp let-off mechanism consists of three parts: warp tension detection, signal processing and adjustment, and weaving shaft drive. In the weaving process, the warp tension is detected, and the...

AI Technical Summary

Problems solved by technology

When the weft insertion mechanism cooperates with the warp let-off mechanism, at a certain moment, the warp thread moves up and down to form an opening, and then weft insertion begins, but the warp thread will be stretched when the opening is formed, resulting in loosening when the warp thread opening is closed. The lack of a certain tension will affect the subsequent production

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