A Constant Force Quick Adjustment Device for Weft Feeder

Abstract

The invention relates to the field of textile machinery, in particular to a constant-force fast adjusting device of a weft feeder, which includes a casing, an inner tube fixed inside the casing and fixed to a fixed brush frame, and a screw; There is a wrench head assembly, and the inner end extends into the inner tube; there is a rib on the inner wall of the inner tube that divides the inner tube into an outer chamber and an inner chamber; A nut pressing block is matched with the inner wall of the outer chamber without rotation, and the tension spring sleeved on the screw rod is supported between the outer end faces of the ribs of the first nut pressing block; The nut pressing block is matched with the inner wall of the inner chamber without rotation, and the return spring sleeved on the screw rod is supported on the second nut pressing block and the inner end surface of the housing. The invention realizes stable and constant tension adjustment, and at the same time is simpler, convenient to process and low in cost.

Description

technical field [0001] The invention relates to the field of textile machinery, in particular to a constant-force quick adjustment device for a weft feeder. Background technique [0002] The weft feeder is a device for processing weft yarns on textile machinery. When the loom is working, due to the fast running speed of the weft yarn, it is easy to break the yarn directly from the yarn ball, thereby affecting the production efficiency. The function of the weft feeder can quickly wrap a certain length of yarn around itself. On the yarn drum, it can be released at an extremely fast speed when needed, so as to increase the weaving speed and reduce the yarn breakage rate. [0003] During the actual yarn feeding, the yarn pre-stored on the yarn drum of the weft feeder is pulled out through the brush ring. The distance between the brush circle and the yarn drum is the yarn threading space. At the same time, the tension adjustment of the yarn can also be realized by adjusting th...

AI Technical Summary

Problems solved by technology

This leads to unstable tensioning of the yarn by the actual brush ring

[0007] In addition, the structure of the spiral groove 401 of the wrench 40 is complicated, and it is quite difficult to process the curved surface, and it is also very easy to wear during use. At the same time, the installation space of the positioning column 403 is limited, resulting in a short service life of the rapid positioning mechanism and a high maintenance rate.

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