Staggering preventing device of sewing material and overlock sewing machine

A technology of error prevention and sewing materials, which is applied in the direction of sewing machine components, cloth feeding mechanism, sewing equipment, etc., can solve the problems of reduced sewing quality, sewing material staggered layer, layered, rough and uneven, so as to improve sewing quality and avoid mistakes Layer, easy to feed the effect

Active Publication Date: 2017-07-14
JACK SEWING MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When sewing relatively thick sewing materials, the feeding process of feeding the sewing materials between the presser foot and the needle plate before starting to sew will be very laborious. During the feeding process before sewing, a

Method used

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  • Staggering preventing device of sewing material and overlock sewing machine
  • Staggering preventing device of sewing material and overlock sewing machine
  • Staggering preventing device of sewing material and overlock sewing machine

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Embodiment Construction

[0039] 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.

[0040] 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...

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PUM

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Abstract

The invention provides a staggering preventing device of a sewing material. The staggering preventing device comprises a tooth rack provided with a fixed swinging supporting point, a feed dog arranged at one end of the tooth rack, a rotatable eccentric shaft and a driving mechanism for driving the eccentric shaft to rotate, wherein a first sliding groove is formed in the other end of the tooth rack; the fixed swinging supporting point of the tooth rack is located between the feed dog and the first sliding groove; the eccentric shaft comprises a shaft body part and a shaft eccentric part which is eccentrically arranged on the shaft body part; the shaft body part is connected with the driving mechanism; the shaft eccentric part is rotatably mounted in the first sliding groove of the tooth rack and is in sliding matching with the first sliding groove; when a presser foot is lifted or after the presser foot is lifted, the driving mechanism drives the tooth rack to downward move toward one end of the feed dog on the tooth rack through the eccentric shaft, so that the feed dog is descended to the lower side of a needle plate; a distance between the needle plate and the presser foot in a feeding process before sewing is enlarged and the sewing material is not in contact with the feed dog, so that the material is convenient to feed; a condition that the sewing material has staggering and layering phenomena before sewing can also be avoided.

Description

technical field [0001] The invention relates to garment sewing equipment, in particular to a sewing material anti-slip device and an overlock sewing machine provided with the sewing material anti-slip device. Background technique [0002] At present, when various types of sewing machines (including lockstitch sewing machines, overlock sewing machines, interlock sewing machines, etc.) are designed, there is a fixed distance between the presser foot and the needle plate in the sewing machine, and in most types of sewing machines, The distance between the above-mentioned presser foot and the needle plate is relatively small. As we all know, the sewing machine generally needs to lift the presser foot upwards before sewing, and then feed the sewing material between the presser foot and the needle plate. When the movement reaches the highest point, under normal circumstances, the feed tooth is about 1mm higher than the needle plate, which makes the distance between the presser fo...

Claims

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Application Information

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IPC IPC(8): D05B27/02
CPCD05B27/02D05D2207/02
Inventor 郭红华宋国庆吴平
Owner JACK SEWING MASCH CO LTD
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