Dobby shedding device suitable for ripple-shedding loom

Abstract

The invention relates to a dobby shedding device suitable for a ripple-shedding loom. A first driving mechanism corresponding to each warp sewing heald frame in the device comprises a first heald lifting arm, a second heald lifting arm and a third heald lifting arm which are parallelly arranged on a frame, a first lever, a second lever, a first slide block wheel, a second pulley, a third pulley, a first lifting rope, a second lifting rope, a third lifting rope and a heald frame restoring torsion spring; one end of the first lifting rope is fixed to the first heald lifting arm, the middle passes the third pulley, and the other end is fixed in the center of the first slide block wheel; one end of the second lifting rope is fixed to the second heald lifting arm, the middle passes the second pulley, and the other end is fixed to the third heald lifting arm; one end of the third lifting rope is connected with the second lever, while the other end is connected with the upper side of the warp sewing heald frame; and the lower side of the warp sewing heald frame is connected with one end of the heald frame restoring torsion spring and is pulled by the heald frame restoring torsion spring. The dobby shedding device is suitable for the ripple-shedding loom to weave five-layer fabrics through disposable five-weft insertion so as to greatly improve production efficiency.

Description

technical field [0001] The invention relates to a weaving machine in the textile industry, in particular to a shedding device for a dobby required for multi-shed weaving. Background technique [0002] The dobby is a shedding mechanism on the weaving machine in the textile industry to layer the warp yarns in sequence to form a shed for weft insertion and weaving. At present, most of the dobby machines only form one shed, that is to say, the heald frame can only form two warp positions, the upper and lower. Weaving successively from one layer to the next is labor-intensive and time-consuming, and also causes structural limitations. But now the dobby that can form two sheds, that is, the shedding mechanism dobby that can make the sewing warp heddle outside the ground warp heald frame be in the upper, middle and lower warp positions, is still imported, and the price is very expensive. However, it can only weave two-layer fabrics such as velvet, that is, weaving two wefts at th...

AI Technical Summary

Problems solved by technology

At present, most of the dobby machines only form a shed, that is to say, only the upper and lower warp positions can be formed by the heald frame. Weaving from one layer to the next in turn is labor-intensive and time-consuming, and also causes structural limitations

But now the dobby that can form two sheds, that is, the shedding mechanism dobby that can make the sewing warp heddle outside the ground warp heald frame be in the upper, middle and lower warp positions, is still imported, and the price is very expensive. However, it can only weave two-layer fabrics such as velvet, that is, weaving two wefts at the same time. With the continuous development of textiles and the continuous advancement of industrial fabrics, new organizational structures and production development needs are required, such as five-layer fabrics and five-layer fabrics. Simultaneous weft insertion for weaving, which cannot be realized on general dobby machines

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