Servo drive mechanism of sewing machine

A servo-driven, sewing machine technology, applied in the field of sewing machines, can solve the problems affecting the torque and noise performance of the sewing machine, the difficulty of processing and assembling parts, and the high production cost, and achieve the effect of simple structure, easy processing of parts, and reduced difficulty of assembly

Inactive Publication Date: 2006-07-19
JACK SEWING MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the sewing machine is a high-precision assembly, it requires high precision gears. In addition, a vertical shaft hole is required on the casing to support the gear shaft to realize the connection and movemen...

Method used

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  • Servo drive mechanism of sewing machine
  • Servo drive mechanism of sewing machine
  • Servo drive mechanism of sewing machine

Examples

Experimental program
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Embodiment Construction

[0016] refer to figure 1 , Figure 2, the upper shaft 13 of the lockstitch machine is directly driven by the servo motor 12 and rotates; the tooth lifting shaft 14 is directly driven by the servo motor 11 and rotates. The right end of the lifting tooth shaft 14 is equipped with a feeding cam 6 and fixed with a set screw 9. The two ends of the feeding shaft 16 are respectively covered with a sleeve 4 and fixed by a set screw 10. The upper end of the feeding connecting rod 5 is sleeved on the feeding cam 6, and the lower end The pin shaft 3 is connected to the sleeve 4, so that the rotation of the feeding cam 6 is driven by the feeding connecting rod 5 to drive the feeding shaft 16 to swing back and forth; like Figure 4 As shown), the upper end is sleeved on the tooth-lifting cam 2, and the lower end is connected to the sleeve 4 mounted on the left end of the feeding shaft 16 through the pin shaft 3, so that the feeding shaft 16 swings back and forth to drive the tooth frame 1 ...

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Abstract

The servo drive mechanism for a flat joint machine comprises: a feed bar (1), a feed lifting cam (2), a pin shaft (3), a socket base (4), a feeding connecting rod (5), a feeding cam (6), a upper shaft (12) drove by a servo motor (11), a lower shaft (14) in platform (18) drove by a rotary-shuttle servo motor (10), and feed lifting shaft (13) drove by a feed lifting servo motor (9). This invention uses two or three servo motors to drive opposite shafts, eliminates a bevel gear structure or an engagement gear structure to reduce assembly difficulty and cost.

Description

Technical field: [0001] The invention belongs to the sewing machine technology, in particular to the servo drive mechanism of the lockstitch sewing machine Background technique: [0002] In traditional sewing machines, especially lockstitch machines, the upper shaft used to drive the movement of the needle is generally driven by a clutch motor, and the tooth lifting shaft used to drive the movement of the cloth feed dog is driven by the upper shaft through a bevel gear transmission mechanism, and is used to drive the rotary The lower shaft of the shuttle action is driven by the tooth lifting shaft through gear meshing. Since the sewing machine is a high-precision assembly, it requires high precision gears. In addition, a vertical shaft hole is required on the casing to support the gear shaft to realize the connection and movement of the bevel gear, which makes it difficult to process and assemble the parts, which affects the whole sewing machine. The machine torque and nois...

Claims

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Application Information

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IPC IPC(8): D05B69/12D05B27/00D05B55/14D05B57/30
Inventor 邱卫明蒋昌林阮林兵
Owner JACK SEWING MASCH CO LTD
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