Third axis direct-driving servo small motor for sewing machine and bobbin thread distributing disk

Abstract

This invention discloses small servo motor of direct driving by the third axle and the bottom noseplate in the sewing machine. To re-design the drive mechanism will improve the complex drive mechanism of high-speed barrel-type sewing machine of transverse structure. This invention adopts the direct drive by the third axle, the third axle is crossed before the operator in the same axial direction as the yarn jib of the sewing machine and it situates in the mainframe of the machine in the right of the casting needle of the yarn jib but it is exposed to the cam of the bottom noseplate outside the transverse mainframe. A power supply offers the third axle the dynamical force which is divided up by the timing and regular belt onto the other upper axle and lower axle that cross the main body, so it will reduce the complication of the drive mechanism duo to the transverse mainframe and makes best use of the inner room of the sewing machine.

Description

technical field [0001] The present invention relates to an improved driving mechanism of a high-speed straight sewing machine, in particular to a cam that directly drives the tension adjustment mechanism by setting a third axis, and then shares the power of the third axis to the upper axis and the lower axis through a timing belt. Axis mechanism. Background technique [0002] The mechanism design of traditional industrial high-speed cylinder sewing machines can be roughly divided into straight cylinder sewing machines and horizontal cylinder sewing machines. The axial direction of the cylinder body of the straight cylinder sewing machines faces the operator, and the axial direction of the transmission 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. As far as the convenience of operation is concerned, most of the adjustment parts of the straight ...

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to solve the above-mentioned traditional defects. The present invention sets a third axis in the main body of the sewing machine. The third axis runs through the main body of the sewing machine and is in the same axial direction as the cantilever of the sewing machine. It is located on the main body below the cantilever of the sewing machine Inside, one end of the third axis directly drives the cam of the bobbin thread splitting disc exposed outside the main body of the horizontal straight cylinder sewing machine. On the right side, the height of the top of the bottom thread splitter is the same as the straight working platform below the needle drop position, the height of the third axis is lower than the straight working platform of the sewing machine, and the other end of the third axis is connected to the power source of the sewing machine. The shaft center only uses one pulley and different timing belts to share the power of the third shaft center to the upper shaft center and the lower shaft center, which solves the problem of complicated transmission mechanism caused by the design of the horizontal host machine, so that the internal space of the sewing machine can be fully use

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