Feeding wheel adjusting mechanism of sewing machine

Abstract

The invention discloses a feeding wheel adjusting mechanism of a sewing machine. The feeding wheel adjusting mechanism comprises a driving wheel, two driven wheels and a feeding wheel. The driving wheel is fixed onto a third universal connector, a fifth rotary shaft is connected with one end of the third universal connector, the third universal connector can rotate under the control of the fifth rotary shaft, the two driven wheels are fixed to two ends of a shaft, the driven wheel at one end of the shaft meshes with the driving wheel, the driven wheel at the other end of the shaft meshes withthe feeding wheel, a bearing sleeves the shaft, two positioning rings are arranged on the bearing, a first positioning rod is inserted in one of the positioning rings, one end of the first positioningrod is inserted in the other end of the third universal connector, the other end of the first positioning rod is inserted in the inner wall of a cover, an arc-shaped ring hole is formed in the otherpositioning ring, a second positioning rod is inserted in the arc-shaped ring hole and is fixed to the inner wall of the cover, another positioning ring is arranged on a third side walls of the feeding wheel, a plurality of positioning pins are arranged on the third positioning ring, a plurality of vertical slide grooves are formed in the side walls of the cover, and the positioning pins are clamped in the vertical slide grooves. The feeding wheel adjusting mechanism has the advantages that the feeding wheel can be adjusted in the up-down directions, and accordingly the application range can be expanded.

Description

Technical field: [0001] The invention relates to the technical field of sewing machines, in particular to a sewing machine feeding wheel adjustment mechanism which is suitable for leather and leather sewing and decorative sewing, and is mainly used for sewing high-grade leather shoes, bags and handbags. Background technique: [0002] The mechanism design of the traditional industrial high-speed cylinder sewing machine can be roughly divided into two types: straight cylinder sewing machine and horizontal cylinder sewing machine. The cylinder body of the straight cylinder sewing machine is axially facing the operator, and the axial direction of the drive shaft of the entire sewing machine is also the same; On the contrary, the axial direction of the cylinder of the horizontal cylinder sewing machine lies in front of the operator. Because the straight cylinder sewing machine is used in the sewing of clothing cuffs, cuff elastic bands, and the sewing of various round products. ...

AI Technical Summary

Problems solved by technology

As far as the convenience of operation is concerned, most of the adjustment parts of the straight cylinder sewing machine will be blocked by the sewing mechanism at the front end of the straight cylinder when in use, which is not conducive to operation and adjustment.

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