Differential feeding mechanism used in adjustable mode
A feeding mechanism and adjustable technology, applied in the field of sewing, can solve problems such as shrinkage of sewing materials, delay in working hours, and impact on product quality, and achieve the effect of simple adjustment and beautiful sewing
Active Publication Date: 2017-10-13
XIAN TYPICAL IND
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- Application Information
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Problems solved by technology
[0002]At present, a single feed dog is commonly used in sewing machines to feed material. The feeding amount of the feed dog changes synchronously with the change of the feeding mechanism. The sewing material is generally double-layer sewing material , divided into fabric and base material. When the fabric and base material are the same sewing material, an ordinary sewing machine that uses a single feed dog to feed the cloth can fully meet the requirements, but when sewing special sewing materials, due to the material of the fabric and base material The difference makes the cloth feed dog slip between the fabric and the base material during the cloth feeding process, resulting in shrinkage and wrinkling of the sewing material, affecting product quality and delaying working hours
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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[0033] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0034] see figure 1 —14: An adjustable lower differential feeding mechanism, including a cloth feeding mechanism 42, and also includes a cloth feeding shaft 1, a pressing shaft 43, a needle plate 50, an inner rack crank 3, an inner rack crank 5, and an outer rack crank 8 , outer tooth frame 10, outer cloth delivery crank 17, long connecting rod one 41, long connecting rod two 36, short connecting rod one 39, short connecting rod two 35, outer lifting tooth fork 47 and interior lifting tooth fork 44;
[0035] see image 3 : the inner tooth frame crank 3 is made up of two small cylinders at the upp...
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 relates to the technical field of sewing, in particular to a differential feeding mechanism used in an adjustable mode. The mechanism adopts a differential structure in the adjustable mode, the creeping amounts of fabrics and bottom fabrics during mixed sewing of different fabrics can be ensured, and shrinkage and draping during sewing of a special process can be also achieved. According to the technical scheme, the differential feeding mechanism used in the adjustable mode comprises a fabric feeding shaft and a lifting tooth shaft which are connected with a fabric feeding mechanism, wherein an inner tooth rack crank, an outer tooth rack crank and a fabric feeding crank are connected to the fabric feeding shaft, the inner tooth rack crank and the outer tooth rack crank are connected with an inner press frame and an outer press frame respectively, the lifting tooth shaft is sleeved with an inner lifting fork and an outer lifting tooth fork, a sliding block is connected to an outer fabric feeding crank, and the sliding block, the outer tooth rack crank, the inner lifting fork and the outer lifting tooth fork are connected through small parts such as connecting rods and cushion blocks to form the differential feeding mechanism used in the adjustable mode.
Description
technical field [0001] The invention relates to the field of sewing technology, in particular to an adjustable lower differential feeding mechanism. Background technique [0002] At present, a single feed dog is commonly used in sewing machines, and the feed amount of the feed dog changes synchronously with the change of the feeding mechanism. The sewing material is generally double-layer sewing material, which is divided into fabric and base material. When the fabric and base material are the same When sewing a variety of sewing materials, the ordinary sewing machine using a single feed dog to feed the cloth can fully meet the requirements, but when sewing special sewing materials, due to the different materials of the fabric and the base material, the material and the base material of the feed dog will be in the process of feeding the cloth. There is slippage between them, resulting in shrinkage and wrinkling of the sewing material, affecting product quality and delaying w...
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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Patent Timeline
Login to View More IPC IPC(8): D05B27/08D05B27/24
CPCD05B27/08D05B27/24Y02A40/81
Inventor 刘永高晓松郑小东
Owner XIAN TYPICAL IND