Weft accumulator for loom

Abstract

The invention discloses a weft feeder for a weaving machine, comprising a wrap block which is provided with a central shaft hole for rotating, wherein, one side of the wrap block is provided with weft pressing wheels rotating oppositely, a turbine blade is arranged inside the wrap block, the included angle alpha formed between the turbine blade and the circumferential inner surface of the wrap block is less than 45 degrees, the lateral surface of the wrap block is provided with an air inlet, the turbine blade rotates to let air flow into the inner part of the wrap block through the air inlet,and the generated airflow forms pressure from the circumferential outer surface of the wrap block, thereby pressing the weft yarns. The weft storing device can effectively improve the weaving qualityof the weaving machine and the working efficiency of the whole machine; the wrap block and the turbine blade rotate simultaneously so that the turbine blade drives air to be absorbed into the wrap block from the air inlet and the generated airflow forms pressure from the circumferential outer surface of the wrap block, thereby pressing the weft yarns; in the weft insertion process, weft yarns arestraight and have certain gap between the cone surfaces of the wrap block so that the airflow generated in the air inlet has small attractive force on the weft yarns and the requirement of small weftyarn resistance in the weft insertion process is met.

Description

technical field [0001] The invention relates to a one-way weft-inserting shuttleless loom, in particular to a length-measuring weft feeder in the one-way weft-inserting shuttleless loom. Background technique [0002] Such as Figure 1 to Figure 3 As shown, it is a schematic diagram of the structure of the weft feeder and its length measuring drum in the existing unidirectional weft insertion shuttleless loom. In the existing unidirectional weft insertion shuttleless loom, the commonly used length measurement weft feeder It mainly includes a length measuring drum 91 made of metal and a synchronous ring 92 made of plastic. The length measuring drum 91 is provided with a central axis hole 93 for rotation. Circle 92 and length-measuring drum 91 run synchronously and weft thread is wound on the length-measuring drum 91, in order to use when picking weft next time. The use of such a structure for the weft feeder has the following disadvantages: According to the length of the requ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a weft feeder for a loom, which can effectively solve the problem of the above-mentioned existing weft feeder using a synchronous ring during the weft storage period and the weft insertion period, due to the completely opposite requirements for the synchronous ring. , leading to the poor quality of the loom weaving and the low working efficiency of the loom

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