Hole opening cutter device for eyelet button hole sewing machine
A keyhole machine and round head technology, which is applied to sewing machine components, textiles and papermaking, and clothing piece conveyors, etc., can solve the problems of low working efficiency of the hole cutter device, increase the speed, reduce the gas consumption of the cylinder, The effect of prolonging the service life
Active Publication Date: 2012-08-01
四川精上缝纫机有限公司
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to solve the problem of low working efficiency of the opening cutter device of the buttonhole machine
Method used
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[0019] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0020] Such as figure 1 , figure 2 Shown, the present invention comprises multiple power cylinder 4, cutter lever 1, cutter fixed shaft 20, connection seat 8, auxiliary cylinder 12, sensor 13 and control unit.
[0021] The middle part of the cutter lever 1 is hinged on the inner wall of the upper casing 25 of the buttonhole machine through the rotating shaft 2, and the multi-force cylinder 4 has the first and second pressure air inlets 5, 6 and a return air inlet 7. When the first and second pressure air inlets 5 and 6 are connected to the air source for air intake and the return air inlet 7 is deflated, the piston rod of the multi-power cylinder is stretched out, and the return air inlet 7 is connected. When the ventilation source takes in air and the first and second pressure inlets 5 and 6 release air, the piston rod of the multi-power cylinder retracts, and th...
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The invention discloses a hole opening cutter device for an eyelet button hole sewing machine. The middle part of a cutter lever is hinged to the inner wall of an upper shell of the eyelet button hole sewing machine, and the two ends of the cutter lever are hinged with a piston rod and a cutter fixing shaft of a multifold-force cylinder; a connecting seat is provided with first and second supporting arms which are perpendicular to each other; the right-angled part is hinged to the inner wall of a lower shell; the first supporting arm is hinged with the cylinder body of the multifold-force cylinder; the second supporting arm is hinged with a piston rod end of an auxiliary cylinder; the cylinder body of the auxiliary cylinder is provided with a sensor which is used for acquiring the end position of the piston rod; and a control unit is connected with a plurality of pressure air inlets on the multifold-force cylinder according to the position signal. In the invention, the position of themultifold-force cylinder is adjusted through the auxiliary cylinder, so that the speed of the hole opening cutter device for the eyelet button hole sewing machine is improved by over 70 percent, over60 percent of air of the cylinder is reduced, the life of the cutter is prolonged and the noise during the breakage of the material is reduced under the conditions that the strokes of the cuter and the shim, the diameter of the cylinder and the cutting force are not changed.
Description
technical field [0001] The invention relates to a round head buttonhole machine, in particular to a hole opening cutter device of the round head buttonhole machine. Background technique [0002] The round head buttonhole machine is mainly used for sewing buttonholes of all kinds of medium and thick materials such as knitting, cotton cloth, woolen cloth, etc. It is a special machine for sewing buttonholes with high production efficiency. The opening cutter device of the traditional buttonhole machine is driven by a multi-power cylinder. Because the length of the multi-power cylinder is too long and the stroke is too long, the inflation and exhaust time is too long, resulting in The cutter moves slowly, consumes a lot of air, consumes a lot of cutters, and resets slowly, so the work efficiency is low. Shortening the length of the cylinder is a solution to increase the moving speed of the cutter, but this cannot satisfy the normal stroke height between the cutter and the cutte...
Claims
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IPC IPC(8): D05B37/02
Inventor 张章生
Owner 四川精上缝纫机有限公司