Sewing machine capable of achieving one-time forming of folding and edge covering
A sewing machine and hemming technology, which is applied to sewing machine components, needle holders for sewing machines, sewing equipment, etc., can solve the problems of low production efficiency and high production cost, and achieve the effects of low cost, high sewing efficiency and reduced sewing cost.
Pending Publication Date: 2020-07-17
TYPICAL SEWING MACHINE WANPING MACHINERY
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Problems solved by technology
[0002] At present, in the field of sewing machines, closing and hemming are two different processes. Therefore, two sewing machines need to be used for the front and rear processes. Therefore, not only the product production efficiency is low, but also the production cost (including equipment, manpower, etc.) is relatively high high
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[0029] In order to make the above objectives, features and advantages of the present application more obvious and understandable, the specific implementation of the present application will be described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are explained in order to fully understand this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of this application. Therefore, this application is not limited by the specific embodiments disclosed below.
[0030] In the description of this application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "A...
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The invention relates to a sewing machine capable of achieving one-time forming of folding and edge covering. The sewing machine comprises a conveying unit, a sewing unit and an edge covering device.The conveying unit comprises a conveying platform, conveying teeth and a conveying driver. The sewing unit comprises a presser foot, machine needles, shuttles and a machine needle driver. A first needle hole and a second needle hole which are staggered are formed in the presser foot, and the first needle hole and the second needle hole are distributed front and back and left and right. The machineneedles and the shuttle are in one-to-one correspondence and are divided into two groups, one group is used for folding sewing materials, and the other group is used for edge covering of the sewing materials. In the process of sewing the sewing materials from front to back, the machine needle for folding penetrates through the first needle hole to sew the sides of the sewing materials, and the machine needle for edge covering penetrates through the second needle hole and sews the folded sewing materials and an edge covering strip. Front folding and rear edge covering do not interfere with each other, and meanwhile the machine needles used for folding and edge covering can advance along with the sewing materials and synchronously complete folding of the sides of the sewing materials and sewing of edge covering at a time during sewing; and the sewing efficiency is high, and the sewing cost is greatly reduced.
Description
Technical field [0001] The invention belongs to the field of sewing machine products, and in particular relates to a sewing machine with one-time forming of folded edges. Background technique [0002] At present, in the field of sewing machines, closing and hemming are two different processes. Therefore, it is necessary to use two sewing machines for the front and back process operations. Therefore, not only the production efficiency of the product is low, but the production cost (including equipment, manpower, etc.) is relatively high. high. Summary of the invention [0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art, and provide an improved sewing machine with one-time forming of the folded edge. [0004] To solve the above technical problems, the present invention adopts the following technical solutions: [0005] A sewing machine capable of forming a folded edge at one time, comprising: [0006] A feeding unit, whi...
Claims
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IPC IPC(8): D05B1/20D05B35/02D05B35/06D05B55/00D05B55/14
CPCD05B1/20D05B35/02D05B35/062D05B55/00D05B55/14
Inventor 王建峰
Owner TYPICAL SEWING MACHINE WANPING MACHINERY