Automatic weft detection and pirn feeding device for sisal yarn loom

Abstract

The invention discloses an automatic weft detection and pirn feeding device for a sisal yarn loom. The automatic weft detection and pirn feeding device is connected with an electrical control circuit,performs weft detection and pirn feeding separately through shuttle boxes at the left end and the right end of a shuttle race of the loom, and comprises a weft shuttle and a pirn changing conductionrod arranged in the weft shuttle; a weft detection induction block is arranged at the left end of the pirn changing conduction rod; a spring is arranged on the inner side of the weft detection induction block and is fixed in the weft shuttle through a first bolt; the right end of the pirn changing conduction rod is installed in a shaft hole of a support through a small shaft; the support is fixedon one side of a yarn guide groove of the weft shuttle through a second bolt; a limiting screw is arranged on the outer side of the pirn changing conduction rod; and a stopping pin is arranged in a shuttle cavity opening above the limiting screw. According to the automatic weft detection and pirn feeding device, weft insertion and pirn feeding can be conducted accurately and automatically in due time, the full-automatic weaving process of the loom can be achieved, and the device has the advantages of being simple in structure, few in fault, convenient to assemble and disassemble, capable of relieving labor intensity and capable of improving production efficiency.

Description

technical field [0001] The invention relates to the field of auxiliary equipment for looms, in particular to an automatic weft-feeding and weft-feeding device for sisal sliver looms. Background technique [0002] my country's current general-purpose sisal yarn strip looms mainly include JB170 and JB130, both of which are shuttle looms. In the past, this type of loom had to be shut down and reassembled manually when it was started, and the weavers had to be shut down and reassembled repeatedly. The labor intensity of the weavers was high and the efficiency was extremely low. After the patent No. ZL01221284.9 (an automatic yarn feeding device for sisal yarn looms) appeared, it successfully solved the non-stop feeding and electric feeding, and the production efficiency was increased several times. However, this device relies on manual observation to judge whether the yarn sliver in the weft shuttle has been woven, and then starts the operation through the manual start button. ...

AI Technical Summary

Problems solved by technology

However, this device relies on manual observation to judge whether the yarn sliver in the weft shuttle has been woven, and then starts the operation through the manual start button. Due to the subjective randomness and inaccuracy of manual judgment, it will cause problems if the yarn is started too early or too late. The weft yarn of the linen is missing or overlapped too much, which affects the appearance and quality of the linen

Because the problems of automatic weft detection and automatic weft feeding have not been solved, the machine has serious problems such as missing wefts in linen weaving, and sometimes the wefts cannot be pushed into the weft shuttle cavity.

At the same time, because of the need to keep an eye on the weft yarn in the weft shuttle all the time, a weaver can only operate and manage one loom of this type. Due to the long-term concentration of the weaver, the weaver's operation is very tense and fatigued, and the production not efficient

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