Yarn feeder with adjustable yarn feeding speed

Abstract

The invention discloses a yarn feeder with the adjustable yarn feeding speed. The yarn feeder comprises an end screw, a bobbin, a driven wheel cover, a bottom plate, a driven wheel, a driving wheel, a mandrel, a coil spring, a friction plate, embedded blocks and a locking screw; one end of the mandrel is fixed on the bottom plate, and the end screw is fixed at the other end of the mandrel; the driving wheel is located in the bottom plate and rotationally installed on the mandrel; the bobbin is rotationally connected with the mandrel; one end of the bobbin is limited by the end screw, and the other end of the bobbin is fixedly connected with the driven wheel cover; the driven wheel cover is located on the outer side of the driven wheel and fixedly connected with the driven wheel; the driven wheel is rotationally mounted on the mandrel; the coil spring is arranged in the driven wheel, one end of the coil spring is fixedly connected with the driven wheel, and the other end of the coil spring is fixedly connected with the driving wheel; the plurality of embedded blocks are fixed on the bottom plate, and internal threads are formed in the embedded blocks; the friction plate is arranged at the tail end of the locking screw; and the locking screw is matched with the internal threads of the embedded blocks, and the friction plate at the tail end can make contact with the driving wheel. The yarn feeding tension and the yarn feeding speed can be manually adjusted.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to a yarn feeder with adjustable yarn feeding speed. Background technique [0002] Achieving good unwinding and yarn feeding of fiber bundles is the first step in the preparation of preforms, and continuous and stable yarn feeding is conducive to the formation and weaving of preforms. At present, there are many kinds of yarn feeders, which are often used in knitting equipment, and generally yarn feeders need to be equipped with motors and corresponding transmission mechanisms, which makes the structure of yarn feeders too complicated; the functions of traditional yarn feeders are mostly yarn storage and knot prevention. The stability of yarn feeding itself is not emphasized. The document with the application number 201710741329.7 discloses an automatic yarn feeder, the driving device is a brushless DC motor with an outer rotor, and a rotating mover is set on the stator shaft, and ...

AI Technical Summary

Problems solved by technology

At present, there are many kinds of yarn feeders, which are often used in knitting equipment, and generally yarn feeders need to be equipped with motors and corresponding transmission mechanisms, which makes the structure of yarn feeders too complicated; the functions of traditional yarn feeders are mostly yarn storage and knot prevention. No emphasis on the stability of yarn feeding itself

The document with application number 201710741329.7 discloses an automatic yarn feeder, the driving device is a brushless DC motor with an outer rotor, and a rotating mover is set on the stator shaft, and the mover drives the yarn feeder to realize the yarn feeding function, but it does not consider Manual adjustment of yarn feeding speed and axial fixation of yarn feeding drum, which is the first step of yarn feeding tension control

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