SU655753A1 - Weft thread layer of wave-type shedding loom - Google Patents

Description

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The invention relates to the field of textile engineering and can be used on weaving machines with a wave-like movable throat.

A weft yarn plotter is known for a weaving machine with a wave-like movable throat, the rear wall of the body closest to the edge of the fabric of which has a bevel for interacting with the Byrd discs of the machine l.

This plotter is closest to the invention in its technical essence and the achieved result.

Its disadvantage is the possibility of damage to the main threads of the lower branch of the pharynx of the back wall of the body closest to the edge of the body when changing the pharynx, which reduces the quality of the fabric.

The aim of the invention is to improve the quality of the stretched tissue.

For this purpose, in the plotter, the rear wall of the housing closest to the edge of the fabric has a bevel for interacting with the machine's discs, the bottom wall of the case has a striking bevel intersecting the rear wall of the bevel, while the part closest to the edge of the fabric

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The side wall has a chamfer to limit the approach of the filaments on the back wall bevel.

FIG. 1 shows the proposed weft yarn plotter, front view; Fig.2 is the same, side view; in fig. 3 - section A-A.

The plotter 1 contacts the teeth 2 of the disk 3 of the machine reed via a wave-like movable mouth of the main threads 4. The rear wall of the plotter body has a bevel 5 for engagement with the teeth 2, limited by the ribs 6 and 7, designed to guide and prevent the raised from the lower branch of the mouth main threads. The rear wall bevel 5 intersects with the restrictive bevel 8, and the rear part of the side wall tissue nearest to the edge has a chamfer 9 to limit the approach of the main threads to the rear wall bevel.

The bevel 5 forms a greater angle with the plotter base compared to

5 by the angle of the limiting bevel 8, which is necessary due to insufficient retention of the main threads 4 by the bevel 5 when changing the shed.

Claims (1)

During operation of the machine, the spacers 1 are swept over by the teeth of the 2 disks 3 Byrd through a wave-like movable shed of the main threads 4. To reliably hold the laid weft yarn, the aeva quick change occurs, due to which the yarns are pressed to the back wall of the plotter casing. 8 provides the desired direction of the main yarns, thereby reducing their breakage. Claims Weaving yarns of a weaving machine with a wave-like movable shed closest to the edge of the fabric, QQQQQdnQ, the body wall of which has a bevel for interaction with machine discs, characterized in that, in order to improve the quality of the produced fabric, the bottom wall of the machine has a restrictive bevel that crosses the body of the machine. the rear wall bevel, while the rear part of the side wall tissue nearest to the edge has a bevel to restrict the entry of the main threads onto the rear wall bevel. Sources of information taken into vnt {manie for examination 1. USSR author's certificate class. D 03 D 47/26, 1966.