A feeding button machine

Abstract

The invention discloses a feeding button machine, which comprises: a feeding bottom plate, a feeding connecting plate, a gear, a rack, a first power part, a second power part, a feeding crank, and a feeding connecting rod; the two ends of the feeding connecting rod are respectively connected to The feeding crank is connected with the feeding bottom plate, and the feeding connecting plate is respectively connected with the feeding bottom plate and the rack. During the specific work, the first power part drives the gear to rotate, and then drives the rack to move, so that the feeding connecting plate moves, and finally drives the feeding bottom plate to move; at the same time, the second power part drives the feeding crank, and then the feeding connecting rod drives the feeding bottom plate to rotate The hinged shaft swings to realize the feeding action. Compared with the existing cam-type feeding button machine, through the connecting rod type and rack-and-pinion transmission mechanism, not only the structure is simple, but also it is easy to manufacture, so the cost is lower, and the vibration noise is smaller than the existing cam-type structure. The torque is small and the wear is also small, so the service life can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of sewing machines, in particular to a feeding button sewing machine. Background technique [0002] Existing single-needle chain stitch button sewing machine mainly realizes the purpose of feeding through the cam structure. The principle of its feeding action is: under the action of the rotation of the main shaft, the horizontal feeding cam and the longitudinal feeding cam respectively drive their respective feeding mechanisms through their own curved grooves to complete the feeding action. The feeding mechanism relies on the feeding cam to drive the feeding plate and the press Moving the feet back and forth, left and right, has the following disadvantages: [0003] 1. The whole mechanism has high requirements on the cam groove, the processing is difficult, and the cam groove and the roller have high matching precision; [0004] 2. The corner of the feeding cam feeding curve groove is prone to stuck points...

AI Technical Summary

Problems solved by technology

[0003] 1. The whole mechanism has high requirements on the cam groove, the processing is difficult, and the cam groove and the roller have high matching precision;

[0004] 2. The corner of the feeding cam feeding curve groove is prone to stuck points, increasing the torque of the whole machine, causing the feeding to move synchronously and the worm gear to wear, thus affecting the service life and making the noise louder;

[0005] 3. When the cam mechanism runs at high speed, it is easy to cause the cam groove to wear quickly, so that the sewing efficiency cannot be improved when the cam mechanism is running at high speed

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