Cloth feeding mechanism with adjustable cloth feeding time sequence and sewing machine

A cloth feeding mechanism and cloth feeding technology are applied in the direction of cloth feeding mechanism, sewing machine components, sewing equipment, etc., which can solve problems such as the inability to meet sewing needs.

Active Publication Date: 2021-09-28
JACK SEWING MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual operation process, the fine-tuning of the cloth feeding timing within a limited range obviously cannot meet all types of sewing needs

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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  • Cloth feeding mechanism with adjustable cloth feeding time sequence and sewing machine
  • Cloth feeding mechanism with adjustable cloth feeding time sequence and sewing machine
  • Cloth feeding mechanism with adjustable cloth feeding time sequence and sewing machine

Examples

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Comparison scheme
Effect test

Embodiment Construction

[0080] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0081] It should be noted that the structures, proportions, sizes, etc. drawn in the drawings of this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention. Therefore, there is no technical substantive meaning, and any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope of the disclosure of the present invention without affecting the functions and objectives of the present invention. within the scope of technical content. At the same time, terms such as "upper", "lo...

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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PUM

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Abstract

The invention provides a cloth feeding mechanism with an adjustable cloth feeding time sequence. The cloth feeding mechanism comprises a main motor, a main shaft, a feed dog frame, a feed dog, a cloth feeding assembly, a feed dog lifting motor, a feed dog lifting assembly and a cloth feeding clutch assembly; the cloth feeding assembly comprises a cloth feeding shaft, a first cloth feeding transmission unit and a second cloth feeding transmission unit; the first cloth feeding transmission unit comprises a cloth feeding eccentric wheel, a cloth feeding connecting rod, a cloth feeding swing seat, a first swing plate, a second swing plate and a cloth feeding crank; the cloth feeding eccentric wheel is arranged on the periphery of the main shaft in a sleeving mode and provided with a cloth feeding eccentric part; and the cloth feeding clutch assembly acts on the main shaft and the cloth feeding eccentric wheel. When a motion trail of the feed dog is adjusted, the cloth feeding clutch assembly enables no power transmission between the main shaft and the cloth feeding eccentric wheel, the main shaft and the cloth feeding eccentric wheel rotate relatively, and the position angle between the main shaft and the cloth feeding eccentric part is changed, so that an action time sequence of a cloth feeding connecting rod relative to the main shaft is changed, a cloth feeding action is advanced or delayed along with a feed dog lifting action, and the adjustment range of the cloth feeding time sequence is not limited.

Description

technical field [0001] The present invention relates to a sewing machine. [0002] The invention particularly relates to a cloth feeding mechanism with adjustable cloth feeding timing. Background technique [0003] At present, a cloth feeding mechanism is installed in the sewing machine, which is used to drive the cloth feeding dog to do the compound motion of reciprocating up and down and back and forth, so as to realize cloth feeding. For the existing cloth feeding mechanism, please refer to the cloth feeding mechanism disclosed in the Chinese invention patent application specification with application number 201810933691.9. Specifically, if figure 1 As shown, the cloth feeding mechanism includes a main motor, a main shaft 20 driven by the main motor, a cloth feeding assembly connected between the main shaft 20 and the front end of the tooth frame 30, a tooth lifting motor 50, and a tooth lifting motor 50 connected to the tooth frame. 30 teeth lifting components between...

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): D05B27/02
CPCD05B27/02
Inventor 郑吉祝书伟柯祥林何明金
Owner JACK SEWING MASCH CO LTD
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