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Adjustable differential feeding mechanism

A feeding mechanism and adjustable technology, applied in the field of sewing machines, can solve the problems of low precision, unstable operation, large space occupation, etc., and achieve the effect of changing the feeding distance and changing the wrinkle yield of the cloth.

Pending Publication Date: 2021-07-30
CHINA PRECIOUS SCI & TECH GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This structure takes up a lot of space, the precision is not high, and the operation is not stable enough.

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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Embodiment Construction

[0023] Below in conjunction with accompanying drawing, the present invention will be further described with specific embodiment, see Figure 1-4 :

[0024] An adjustable differential feeding mechanism, comprising an outer presser foot 1, an inner presser foot 2 and a main shaft 3 driven by a power device, the main shaft 3 is provided with an eccentric wheel 4 and an eccentric wheel 2 5, and the eccentric wheel 1 4 An eccentric wheel connecting rod one 6 is fixed on the top, and an eccentric wheel connecting rod two 7 is fixed on the eccentric wheel two 5. When the main shaft 3 rotates, the eccentric wheel one 4 drives the eccentric wheel connecting rod one 6 to swing back and forth, and the eccentric wheel two 5 Drive the eccentric wheel connecting rod two 7 to swing up and down, the eccentric wheel connecting rod one 6 swinging back and forth drives the outer presser foot 1 to swing up and down through the transmission mechanism, and the eccentric wheel connecting rod two 7 s...

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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Abstract

The invention belongs to the technical field of sewing machines, and relates to an adjustable differential feeding mechanism. The adjustable differential feeding mechanism comprises a clamp body, an outer presser foot, an inner presser foot and a main shaft driven by a power device; a first eccentric wheel and a second eccentric wheel are arranged on the main shaft; a first eccentric wheel connecting rod is fixed to the first eccentric wheel, and a second eccentric wheel connecting rod is fixed to the second eccentric wheel; when the main shaft rotates, the first eccentric wheel drives the first eccentric wheel connecting rod to swing back and forth; the second eccentric wheel drives the second eccentric wheel connecting rod to swing up and down; the first eccentric wheel connecting rod swinging back and forth drives the outer presser foot to swing up and down through a transmission mechanism; and the second eccentric wheel connecting rod swinging up and down drives the outer presser foot to swing back and forth through the transmission mechanism. The adjustable differential feeding mechanism provided by the invention is simpler and more compact in structure, and a better cloth wrinkling effect can be obtained.

Description

technical field [0001] The invention belongs to the technical field of sewing machines and relates to an adjustable differential feeding mechanism. Background technique [0002] Due to the mutual movement relationship between the inner presser foot and the outer presser foot on the traditional sewing machine when feeding materials, the inner and outer presser feet cannot realize the function of wrinkling the upper sewing material, even if the upper feeding mechanism is made with differential performance. Mechanism, also can't realize the function that upper sewing material is wrinkled. [0003] In order to achieve the effect of sewing machine wrinkled fabric, the Chinese invention patent application number 200910045716.2 discloses a sewing machine upper differential feeding mechanism with shrinkage function and an upper feeding wrinkling mechanism using this mechanism, including a presser foot swing shaft, a crank , presser foot swing crank, cloth feed shaft, cloth feed cra...

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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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D05B27/16D05B29/02D05B29/06
CPCD05B27/16D05B29/02D05B29/06
Inventor 罗一明叶剑立
Owner CHINA PRECIOUS SCI & TECH GRP CORP LTD
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