Weft-density-variable weaving and take-up mechanism

Abstract

The invention discloses a weft-density-variable weaving and take-up mechanism which is characterized in that a weft-density-variable control mechanism comprises an isolating disc, a limiting pull rope, an isolating disc return spring and a control pull rope, wherein the isolating disc is installed on an output worm shaft through running fit; one end of the limiting pull rope is connected with a rack, and the other end is connected with the isolating disc; one end of the isolating disc return spring is connected with the rack, and the other end is connected with the isolating disc; one end of the control pull rope is connected with a second steel wire rope, and the other end is connected with the isolating disc; the isolating disc is provided with an axially extending isolating board; the isolating board covers the tooth surface of a density gear and is separated from the tooth surface of the density gear by a gap; and the isolating board can freely get into and out of the space between a support pillar and the density gear under the actions of the control pull rope, the isolating disc return spring and the limiting pull rope, thus changing or maintaining the number of the support teeth of the density gear, which are pushed to rotate by the support pillar. The weft-density-variable weaving and take-up mechanism can realize weft-density-variable weaving, and has the advantages of simple structure and low cost.

Description

technical field [0001] The invention belongs to the technical field of weaving, and in particular relates to a winding mechanism for weaving with variable weft density. Background technique [0002] Variable weft density weaving means that multiple different weft density areas are distributed on the same piece of fabric according to specific rules according to the design requirements. The current ordinary rapier looms are equipped with mechanical intermittent let-off and mechanical intermittent take-up devices. If a certain density is set, it can only be this density and cannot be changed dynamically. Imported or imitated imported machines are mostly equipped with electronic warp let-off and coiling configurations. Some of them have the function of variable weft density weaving setting by using the timely controllability of servo motors with the support of complex circuits. However, the current domestic rapier machines are 90 % is a domestic ordinary rapier machine. If we w...

AI Technical Summary

Problems solved by technology

[0002] Variable weft density weaving means that multiple different weft density areas are distributed on the same piece of fabric according to specific rules according to the design requirements. The current ordinary rapier looms are equipped with mechanical intermittent let-off and mechanical intermittent take-up devices. Set a certain density, it can only be this density, and cannot be changed dynamically

Imported or imitated imported machines are mostly equipped with electronic warp let-off and coiling configurations. Some of them have the function of variable weft density weaving setting by using the timely controllability of servo motors with the support of complex circuits. However, the current domestic rapier machines are 90 % is a domestic ordinary rapier machine. If we want to achieve variable weft density weaving, we have to refit the let-off and take-up parts and install complicated control parts in the electronic control part. The cost will be quite expensive. Some domestic loom manufacturers have designed It has an independent drive, electromagnetic clutch dual-way selective transmission, and a weft-changing mechanism combined with an electronic control part. Although two weft densities can be weaved according to a certain rule, both the mechanical part and the electronic control part are very complicated and have poor reliability. Adding a weft density requires cumbersome changes in the mechanical and electronic control parts

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