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Multi-needle bar module for sewing machine

By designing a multi-needle bar module, the installation plate, needle bar mounting frame and driving mechanism are used to realize automatic switching of the needle bar, which solves the problem of cumbersome manual thread changing when sewing multi-color patterns on sewing machines, improves sewing efficiency and reduces manufacturing costs. , suitable for pattern sewing in various colors.

Active Publication Date: 2013-10-23
NINGBO SUPREME ELECTRONIC MASCH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure of the double-needle bar is complicated, and the processing precision is high, so the manufacturing cost is high; and when sewing patterns of three or more colors, it is still necessary to manually change the thread

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0037] This embodiment is based on Embodiment 1, and the driving mechanism has been improved. Such as image 3 As shown, the driving mechanism of this embodiment includes a motor 7 , a gear 71 connected to the motor 7 , and a rack 72 arranged on the needle bar mounting frame 3 and meshed with the gear 71 . By controlling the rotation angle of the motor 7, the needle bar installation frame 3 can be controlled to move among the three travel positions, so as to select the required needle bar 4 and make it snap into the slot 5a. For the driving mechanism in this embodiment, the needle bar installation frame 3 can also be moved between two or more travel positions, so as to meet the requirements of different numbers of needle bars.

Embodiment 3

[0039]In this embodiment, on the basis of Embodiment 1, the number of needle bars on the needle bar installation frame 3 is reduced to two. The driving mechanism adopts an air cylinder to control the movement of the needle bar installation frame 3 between two stroke positions.

Embodiment 4

[0041] In this embodiment, on the basis of Embodiment 1, the number of needle bars on the needle bar installation frame 3 is increased to four. The driving mechanism adopts a cylinder group structure with three cylinders connected in a straight line, which can control the movement of the needle bar mounting frame 3 among the four stroke positions, ensuring that each stroke position can select a corresponding needle bar 4 and snap into the needle bar separately Work in drive block 5.

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PUM

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Abstract

The invention discloses a multi-needle bar module for a sewing machine, which can be additionally mounted on a conventional sewing machine to conveniently change the conventional sewing machine into a multi-needle bar sewing machine. The multi-needle bar module is not limited to the dual-needle bar structure, and can be equipped with three needle bars, four needle bars or more needle bars as required, so that the problems that during pattern sewing, a single-needle bar sewing machine and a dual-needle bar sewing machine have insufficient colors and types of upper threads and require manual thread changing. The multi-needle bar module guides all needle bars through a first horizontal guide groove and a second horizontal guide groove, feeds the specific needle bar to a clamping groove of a needle bar driving block through a driving mechanism, and has the advantages of simple structure and automatic control.

Description

technical field [0001] The invention relates to a sewing machine, in particular to a multi-needle bar module for the sewing machine. Background technique [0002] Existing sewing machines usually include an upper shaft. The upper shaft drives a needle bar to move up and down through the needle bar drive link assembly. The lower thread on the top is used to sew the fabric. With the improvement of sewing processing requirements, sometimes it is necessary to use upper threads of different colors for sewing on fabrics. In this way, it is necessary to manually change the thread during sewing processing, which is cumbersome to operate, resulting in low sewing processing efficiency. [0003] Utility model name: needle bar of double-needle sewing machine and its switching mechanism, application number: 201120342948, discloses a needle bar of double-needle sewing machine and its switching mechanism, the needle bar includes a hollow needle bar body, the lower end of the needle bar bo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D05B55/10D05B55/14
CPCD05B55/10D05C11/04
Owner NINGBO SUPREME ELECTRONIC MASCH INC