Strap-clinching machine

Abstract

The present invention relates to a button-sewing machine which is arranged with a movable and a fix switch-over mechanism of the cloth holding piece, and the switch-over mechanism can be switched in the following two states when the button is sewed: a state when the machine fixedly holds the cloth holding piece to the regulated position to stop the moving of the cloth holding piece in the left-and-right direction, and a state when the machine releases the position fixing to the cloth holding piece to make the cloth holding piece move in the front-and-rear direction and left-and-right direction with the movable support and button holding piece together, and the switch-over mechanism is arranged with a position regulating mechanism which can adjust the fix holding position of the cloth holding piece in the left-and-right position at a definite scope, thereby realizing the simplifying of the integral structure, miniaturization, lighting and cheapening, and the sewing drape will not appear even the soft cloth is sewed, besides, it can do button sewing with high quality no matter the variety and thickness of the line.

Description

technical field [0001] The present invention relates to a button sewing machine used for sewing buttons on various sewing products such as front buttons of jackets and vests of men's and women's clothing, buttons for inner pockets, buttons for back pockets of trousers, and the like. In particular, it relates to a button sewing machine which passes a needle thread through each hole of a button under the up and down reciprocating motion of a needle linked with the main shaft of the sewing machine, thereby sewing buttons on cloth. Background technique [0002] As disclosed in Japanese Patent Publication No. 7-49076, this button sewing machine basically includes: a needle plate with a needle drop hole for the needle to move up and down, inserted into the middle of the cloth folded into two layers and holding the cloth The cloth holder, the button holder that holds the button in the button sewing posture with the needle passing through its hole, and the button holder for making e...

AI Technical Summary

Problems solved by technology

[0007] On the other hand, in order to realize the improvement of such sewing quality, it is not only necessary to be respectively provided with the first movable platform for driving the button holder to move in the front and rear and left and right directions which are orthogonal to each other in the horizontal plane, and the first movable table which is orthogonal to each other in the horizontal plane. The second movable table that drives the cloth holder to move in the front, rear and left and right directions must also have a control function that can independently control the first and second movable tables so that the left and right movement of these first and second movable tables can interact with each other. As a result, the overall structure of the button sewing machine is extremely complicated, and the size and weight increase, and the resulting increase in the cost of the sewing machine cannot be avoided.

In addition, there is a problem that vibration and noise are large when the two movable tables are driven to move, and the operating environment is also poor.

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