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Thread trimming device and method for continuous sewing on sewing machine

A sewing machine and thread trimming technology, which is applied to the sewing machine control device, the thread cutting mechanism in the sewing machine, and the sewing machine components, etc. sexual effect

Inactive Publication Date: 2019-01-25
JACK SEWING MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The cutter device in the above-mentioned patent document is mainly used for cutting off the cloth, and cannot be specially used for thread trimming

Method used

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  • Thread trimming device and method for continuous sewing on sewing machine
  • Thread trimming device and method for continuous sewing on sewing machine
  • Thread trimming device and method for continuous sewing on sewing machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as Figure 1 to Figure 3As shown, the sewing machine includes a frame 1 with a rectangular platen 1b on the frame 1, a sewing device 2 and an ironing device 3 are arranged at intervals on the frame 1, and the thread cutting device is located at the ironing device 3 or at the sewing device 2 and the ironing device 3, the sewing device 2, the ironing device 3 and the thread cutting device are arranged in a line along the length direction of the table 1b, and the table 1b is also fixed with suction along the length direction of the table 1b. Wind pull-over device9. The thread trimming device includes a knife rest support handle 4, a moving knife 5 and a fixed knife 6, the knife rest support handle 4 is fixed on the frame 1, a notch 1a is opened on the side of the frame 1, and the fixed knife 6 is fixed on the notch 1a and the blade of the fixed knife 6 faces upwards, the movable knife 5 is hinged on the support handle 4 of the knife rest, one end of the movable knife...

Embodiment 2

[0036] Such as Figure 4 As shown, the present embodiment discloses a control method for continuously sewing sewing materials 10 on a sewing machine. The sewing machine includes a frame 1 and a table 1b on the frame 1, and the table 1b is sequentially provided with a sewing device 2, a shear Wire device and ironing device 3, the control method includes the following steps:

[0037] a. Place the sewing material 10 on the sewing area of ​​the table 1b, and when the sewing material induction detector 23 detects the presence of the sewing material 10, start the sewing device 2;

[0038] b. When the sewing material 10 continues to move forward under the drive of the presser foot 22 and the cloth feeding dog in the sewing device 2 until the sensor detects the presence of the sewing material 10, the sewing device 2 continues to run for P stitches or T seconds, then the sewing device 2 stops running;

[0039] c. The feeding transmission belt 33 in the ironing device 3 drives the sew...

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PUM

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Abstract

The invention provides a thread trimming device for continuous sewing on a sewing machine and a method thereof, and belongs to the technical field of garment manufacturing equipment. The thread trimming device solves the technical problem that the existing sewing machine needs to stop sewing in case of thread trimming, resulting in low efficiency. The sewing machine comprises a frame, a sewing device and an ironing device are arranged at intervals on the frame, and the thread trimming device is located at the ironing device or between the sewing device and the ironing device. The thread trimming device comprises a knife rest support handle, a movable knife and a fixed knife. The knife rest support handle is fixed on the frame, the side of the frame is provided with a notch, the fixed knifeis fixed at the notch with the cutting edge upward, and the movable knife is hinged on the knife rest support handle. One end of the movable knife is provided with a cutting edge and can swing downward to form shearing movement with the fixed knife. The knife rest support handle is provided with a driving member for driving the movable knife to swing. One side of the fixed knife is provided witha sensor capable of detecting a sewing material. The sewing machine can achieve continuous sewing and improves the efficiency.

Description

technical field [0001] The invention belongs to the technical field of garment manufacturing equipment, and relates to a thread trimming device of a sewing machine, in particular to a thread trimming device and method for continuous sewing on a sewing machine. Background technique [0002] A sewing machine is a machine that uses one or more sewing threads to form one or more stitches on the sewing material to interweave or sew one or more layers of sewing material. The sewing machine can sew fabrics such as cotton, fiber crops, silk, wool, and artificial fibers, and products such as leather, plastics, and paper. Existing sewing machines are usually equipped with a thread trimmer to cut the sutures during the sewing process, which is convenient for manual operation. The thread trimmer is usually installed under the machine head and is mainly manually operated to perform thread trimming at the sewing place. . In automatic sewing or semi-automatic sewing equipment, such a thr...

Claims

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Application Information

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IPC IPC(8): D05B65/00D05B69/00D05B81/00
CPCD05B65/00D05B69/00D05B81/00D05D2305/32
Inventor 董海瑞范秉航张航
Owner JACK SEWING MASCH CO LTD