A kind of weft beating mechanism and loom

Abstract

The invention discloses a weft beating mechanism and a loom. The weft beating mechanism includes a conjugate cam, a follower capable of cooperating with the conjugate cam, a sley connected with the follower and a steel reed arranged on the sley; the conjugate cam includes a main cam and an auxiliary cam, and the main cam includes The first back swing return section, the first swing yarn arrangement section and the first front swing weft beating section are sequentially connected, and the auxiliary cam includes the second rear swing return section, the second swing yarn arrangement section and the second front swing beating section connected in sequence Weft section; when the follower cooperates with the first swing yarn management section and the second swing yarn management section of the conjugate cam, the reed performs a swing yarn management action, and the swing yarn management action is specifically that the reed swings at least once. After the weft beating mechanism completes the return action and reaches the back dead center position, it performs the swing yarn arrangement action to make the reed swing at least once to clean up the defects on the warp yarn and sizing defects, reduce the phenomenon of unclear shedding, and optimize the threading process. Weft conditions reduce the number of weft stops and improve weaving efficiency.

Description

technical field [0001] The invention relates to the field of weft beating technology, in particular to a weft beating mechanism and a loom. Background technique [0002] The conjugate cam beating-up mechanism uses the conjugate cam, the follower, the sley and the reed to transfer the movement of the main shaft of the loom to the reed to complete the beating action. The beating action is generally divided into the beating stroke stage, the return stage and the static stage. In the beating stroke stage, the sley starts to swing forward from rest and performs the beating action. The acceleration gradually increases from zero. In the return stage, the acceleration of the sley gradually decreases to zero, and swings backward to the rear dead center position. In the static stage, the sley remains stationary at a certain angle at the rear dead center position. [0003] At present, due to defects such as warp yarn defects and sizing defects, the opening of the warp yarns often appe...

AI Technical Summary

Problems solved by technology

[0003] At present, due to defects such as warp yarn defects and sizing defects, the opening of the warp yarns often appears unclear during the use of the conjugate cam beating-up mechanism, resulting in poor weft insertion, significantly increased weft stop phenomena, and reduced weaving efficiency.

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