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Differential cloth feeding sewing machine

A sewing machine and cloth feeding mechanism technology, applied in the direction of cloth feeding mechanism, sewing machine components, sewing machine casings, etc., can solve problems such as reducing the quality of sewn products

Inactive Publication Date: 2006-06-14
JUKI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the friction between the upper cloth and the lower cloth, cloth feeding scars (scratches) are added to the cloth, and there is a problem that the quality of the sewn product is reduced

Method used

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  • Differential cloth feeding sewing machine
  • Differential cloth feeding sewing machine
  • Differential cloth feeding sewing machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] The differential feed sewing machine 1 of this embodiment is a sewing machine that sews while shirring by setting a difference in feed amount of the upper cloth and the lower cloth to be sewn. Sewing of the cloth for the sleeves of the cloth to the front and back of the body as the lower cloth, etc.

[0049] At this time, the direction in which the sewing machine needle 131 described later moves up and down is defined as the Y-axis direction (up-and-down direction), and a direction perpendicular thereto is defined as the X-axis direction (front-rear direction). The direction in which both directions are perpendicular is defined as the Z-axis direction (left-right direction).

[0050] The differential feed sewing machine 1, such as figure 1 , figure 2 As shown, it has: a needle plate 2 that carries the upper and lower fabrics for sewing, an upper cloth feeding mechanism part 3 that feeds the upper cloth on the needle plate 2 at a predetermined cloth feeding amount, an...

Embodiment 2

[0118] Next, Embodiment 2 of the differential feed sewing machine of the present invention will be described. In addition, the same code|symbol is attached|subjected to the same part as Example 1, and only a different part is demonstrated.

[0119] The operation panel 16 of the differential feed sewing machine 1 may include a differential amount setting key (not shown) as a set value setting key functioning as a part of the set value setting mechanism.

[0120] And, on the operation panel 16, the cloth feeding amount per stitch of feeding the upper cloth (that is, the upper cloth feeding mechanism Part 3 conveys the upper cloth amount for one stitch of upper cloth), and the differential amount data of the portion that exceeds the lower cloth amount as the difference is input. The input differential amount data is output to the control unit 10 and stored in the EEPROM 10d.

[0121] The control unit 10 functions as a part of the bottom feed amount setting mechanism, and can co...

Embodiment 3

[0130] Next, Embodiment 3 of the differential feed sewing machine of the present invention will be described. In addition, the same code|symbol is attached|subjected to the same part as Example 1, and only a different part is demonstrated.

[0131] The operation panel 16 of the differential feed sewing machine 1 may include a proportional value setting key (not shown) as a set value setting key functioning as a part of the set value setting mechanism.

[0132] And, on the operation panel 16, through the proportional value setting key not shown in figure that functions as a part of the setting value setting mechanism, it is possible to perform the operation relative to the feeding amount setting mechanism (operation panel 16, control unit). 10) Input the proportional value data of the differential amount of the set bottom feeding amount. The input differential amount proportional value data is output to the control unit 10 and stored in the EEPROM 10d.

[0133] The control un...

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Abstract

A differential feed sewing machine, a differential feed sewing machine (1), when the top feed mechanism part (3) moved by the top feed moving mechanism (17) is arranged at the first moving position, the upper cloth and The lower cloth is clamped between the upper cloth feeding mechanism part (3) and the lower cloth feeding mechanism part (4) and the upper cloth feeding mechanism part (3) and the lower cloth feeding The upper cloth and the lower cloth are conveyed together. In addition, when the upper cloth feeding mechanism part (3) moved by the upper cloth feeding moving mechanism (17) is arranged at the second moving position, the upper cloth feeding mechanism part (3) is moved from the bottom The cloth feeding mechanism part (4) is slightly separated and the upper cloth feeding mechanism part (3) is activated, so that, according to the set value, the amount of cloth feeding for each stitch of feeding the upper cloth exceeds the amount of the lower cloth feeding as the difference The differential amount only conveys the upper cloth. This differential feed sewing machine is easy to adjust the amount of shirring and can improve the quality of sewn products.

Description

technical field [0001] The present invention relates to a differential feed sewing machine for performing shirring sewing in which upper and lower cloth feed amounts are different. Background technique [0002] Conventionally, differential sewing machines that perform shirring sewing when sewing front and rear bodies, sleeve shoulders, etc. are known (for example, refer to Patent Documents 1 and 2). [0003] This so-called "pushing sewing" is, for example, when sewing the front and back of a suit and the shoulders of the sleeves, etc., the feeding amount of the outer fabric (upper fabric, sleeve side fabric) out of two fabrics that are overlapped and sewn together. The amount of cloth feeding is larger than that of the inner fabric (bottom fabric, front and rear side fabrics) to obtain richness in the outer fabric. In this way, the front and back of the suit, the sleeves and shoulder openings, etc. can be formed into a predetermined three-dimensional shape. In addition, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D05B27/16D05B19/16
CPCD05B19/16D05B27/16D05B73/12D05B27/00
Inventor 野村绍雄
Owner JUKI CORP
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