Differential cloth feeding sewing machine
A sewing machine and cloth feeding technology, applied in the direction of cloth feeding mechanism, sewing machine components, sewing equipment, etc., can solve the problems of long transmission path, poor durability, and large loss of driving force, so as to reduce wear, improve durability, reduce The effect of the loss of driving force
Inactive Publication Date: 2009-06-24
JUKI CORP
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Problems solved by technology
[0006] However, in the above-mentioned conventional differential feed sewing machine, the top feed motor and the adjusting device are arranged outside the sewing machine frame, and therefore, miniaturization cannot be achieved.
In addition, since the adjusting device is arranged outside the frame of the head of the free end of the sewing machine head, it is impossible to install the top feed motor for driving the top feed roller on the sewing machine head, so the handle is arranged outside the frame. The transmission path from the driving force of the upper cloth feeding motor to the upper cloth feeding roller becomes longer, and at the same time requires a complicated driving force transmission mechanism, which cannot be miniaturized, and the loss of driving force becomes larger. The response of the rotation of the motor is slow, so there is a problem that the correct cloth feeding cannot be realized
[0007] In addition, in the above-mentioned conventional differential feed sewing machine, since a rubber layer is provided on the outer peripheral surface of the top feed roller, the rubber layer is abraded by contact with the sewing product, and there is a problem of poor durability.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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[0035] Hereinafter, the present invention will be described with reference to embodiments shown in the drawings.
[0036] Such as figure 1 As shown, the sewing machine frame 2 of the differential feed sewing machine 1 of this embodiment is equipped with a sewing machine bottom plate 3 at the lower part, and the upper part of the sewing machine bottom plate 3 is located figure 1 At the base end on the right side, a nose supporting part 4 is erected. On the upper left side of the head supporting part 4, a sewing machine head 5 extending parallel to the sewing machine base plate 3 protrudes. The free end of the sewing machine head 5 is a sewing machine head 6 also called a face or the like.
[0037] In addition, for the convenience of explanation, in the figure 1 The side of the sewing machine head 6 shown on the left is the front side TS for figure 1 The sewing machine head 5 shown on the right is the base end side BS, with figure 1 the front side of ( figure 2 Right side)...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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A differential feeding sewing machine, comprising: a needle bar mechanism (35), a pressing bar (38) arranged beside the needle bar mechanism, a presser foot (67) arranged under the pressing bar, and a device for moving the pressing bar up and down. The first connecting rod (48), the second connecting rod (51) driven by the pressure rod driving cam (55) arranged on the upper shaft (31), the driving force of the second connecting rod to the first connecting rod The transmission device (56), the adjustment device (60) that adjusts the rising position of the press bar with the movement of the second connecting rod, the top feed motor (76) installed on the outside of the sewing machine head (6), and the top feed motor (76) installed on the top feed The drive pulley (77) for the top feed belt on the motor, the driven pulley (42) for the top feed belt installed under the head of the sewing machine, the drive pulley for the top feed belt and the top feed belt Top feed belt (12) between driven pulleys. This differential feed sewing machine can achieve miniaturization and improved durability.
Description
technical field [0001] The present invention relates to a differential feed sewing machine for performing pleats or the like on upper and lower cloth by differential movement of upper and lower cloth feed members, and more particularly to a differential feed sewing machine capable of conveying a sewn product using a feed belt. Background technique [0002] In the past, known as a kind of industrial sewing machine, for example, in order to be provided with the cuff etc. of men's suits, women's fashion and other sewn goods to give the pleats that give a good feel and a good look, and have different selvage curves in alignment. This is a differential feed sewing machine that simultaneously sews the ends of two pieces of fabric. [0003] In the conventional differential feed sewing machine, for example, the upper and lower upper and lower pieces of cloth that overlap up and down are clamped by a pair of upper and lower cloth feed rollers, and the speed ratio of the two cloth fee...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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IPC IPC(8): D05B27/16
Inventor 桥口俊一野村绍雄佐藤正彦
Owner JUKI CORP