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Servo drive mechanism of sewing machine

A servo-driven, lockstitch 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, so as to achieve simple structure, easy processing of parts and reduce the difficulty of assembly Effect

Active Publication Date: 2006-07-19
JACK SEWING MASCH CO LTD
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

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 movement of the bevel gear, which makes it difficult to process and assemble the parts, which affects the whole sewing machine. machine torque and noise performance, and the structure is complex and the production cost is high

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

[0014] Referring to Figure 1, figure 2 , the upper shaft 12 of the lockstitch sewing machine is directly driven by the servo motor 11 and rotates; the lower shaft 14 located in the pedestal 18 is driven by the rotary shuttle servo motor 10 and rotates, and the tooth-lifting shaft 13 is driven by the tooth-lifting servo motor 9 Direct drive and rotary motion. Servomotor 11 is fixed in the casing, and hook servomotor 10 and lifting tooth servomotor 9 are fixed in the pedestal 18. The right end of the tooth lifting shaft 13 is equipped with a feeding cam 6 and fixed with a set screw 7. The two ends of the feeding shaft 15 are respectively covered with a sleeve 4 and fixed by a set screw 8. 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 drives the feeding shaft 15 to swing back and forth through the feeding connecting rod 5; Such as image 3 ...

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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 in platform (18) drove by a rotary-shuttle servo motor (10), and feed lifting shaft drove by a feed lifting servo motor (9). This invention eliminates a bevel gear structure and 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 lockstitch sewing machines, the upper shaft used to drive the movement of the needle head is generally driven by a clutch motor, the tooth lifting shaft used to drive the feed dog action is driven by the upper shaft through a bevel gear transmission mechanism, and the lower shaft used to drive the hook action Driven by 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 noise performance, and the structure is complex, the production co...

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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