Yarn passing device for adjusting degree of tightness of yarns

Abstract

The invention relates to a yarn passing device for adjusting the degree of the tightness of yarns. The yarn passing device comprises a bobbin, a limiting screw cap, a first clamping piece, a second clamping piece and an adjusting mechanism, wherein one end portion of the bobbin is arranged on a machine frame, the limiting screw cap, the first clamping piece and the second clamping piece are sequentially arranged on the bobbin, and the adjusting mechanism is used for adjusting the distance between the first clamping piece and the second clamping piece. The limiting screw cap is arranged between the first clamping piece and the machine frame, and the first clamping piece and the second clamping piece both can move in the length direction of the bobbin. The adjusting mechanism comprises an adjusting screw cap which is in threaded connection with the other end portion of the bobbin and a spring which is arranged between the adjusting screw cap and the second clamping piece. The bobbin is further provided with a yarn passing hole which allows the yarns to pass through, and the yarn passing hole is placed in a gap between the first clamping piece and the second clamping piece which are arranged on the bobbin. According to the yarn passing device for adjusting the degree of the tightness of the yarns, the yarn passing hole which is arranged in the gap between the first clamping piece and the second clamping piece which are arranged on the bobbin, friction of the yarns and the bobbin is reduced, the occurrence probability of a broken yarn phenomenon is lowered, and the production efficiency of textile equipment is improved.

Description

technical field [0001] The invention relates to a textile machinery device, in particular to a yarn threader for adjusting yarn tightness. Background technique [0002] In textile equipment, the thread passer is very common, and generally includes a bobbin with one end arranged on the frame, a limit nut sequentially arranged on the bobbin, a first clip and a second clip, and a An adjustment mechanism for adjusting the size of the gap between the first clip and the second clip, wherein the limit nut is arranged between the first clip and the frame, and both the first clip and the second clip can be Moving in the length direction, the adjustment mechanism includes an adjustment nut screwed to the other end of the spool, and a spring arranged between the adjustment nut and the second clip, and the adjustment nut compresses the spring, thereby reducing the first clip and the distance between the second clip, however, in actual operation, when the yarn passes through the thre...

AI Technical Summary

Problems solved by technology

[0002]In textile equipment, the thread passer is very common, and generally includes a bobbin with one end set on the frame, and a limit screw set on the bobbin in turn. cap, the first clip and the second clip, and an adjustment mechanism for adjusting the size of the gap between the first clip and the second clip, wherein the limit nut is arranged between the first clip and the frame, Both the first clip and the second clip can move along the length direction of the spool, and the adjustment mechanism includes an adjusting nut screwed to the other end of the spool, and a spring arranged between the adjusting nut and the second clip , by adjusting the nut to squeeze the spring, thereby reducing the distance between the first clip and the second clip, however, in actual operation, when the yarn passes through the threader, it needs to be wound around the bobbin for one week, and at the first Under the action of the clip and the second clip, the yarn has a certain tension. Therefore, there is a certain friction between the yarn and the bobbin, and at the same time, there is a friction between the yarn and the first clip and the second clip. There is also a certain amount of friction, which makes the yarn prone to yarn breakage (thread)

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