Controlling method of automatic foot lifting and pressing of sewing machine

A control method and sewing machine technology, applied in the direction of sewing machine components, sewing equipment, cloth pressing mechanism, etc., to achieve the effects of reducing wear, optimizing the use environment, and improving the service life

Inactive Publication Date: 2019-05-03
JACK SEWING MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the above-mentioned problems existing in the existing technology, and provides a control method for automatically lifting the presser foot of a sewing machine. The technical problem to be solved by the present invention is: how to buffer the action strength of the presser foot, thereby reducing wear and noise

Method used

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  • Controlling method of automatic foot lifting and pressing of sewing machine
  • Controlling method of automatic foot lifting and pressing of sewing machine
  • Controlling method of automatic foot lifting and pressing of sewing machine

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Embodiment Construction

[0027] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0028] Such as figure 1 , figure 2 and image 3As shown, the sewing machine includes a head 8, a control panel 9, an electric control system, a pressing rod 1 arranged at the head 8, and a presser foot 2 arranged at the lower end of the pressing rod 1. Tighten the spring 3, the machine head 8 is provided with a lifting rear lever 6, an electromagnet 7 that can drive the lifting rear lever 6 to swing, a lifting front lever 4 that can drive the pressing rod 1 to rise, and connect the lifting rear lever 6 and the lifting front lever 4 The lifting rod 5, the control panel 9 can adjust the voltage value provided by the electric control system to the electromagnet 7, and the control method includes the following steps:

[00...

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Abstract

The invention provides a controlling method of automatic foot lifting and pressing of a sewing machine, belongs to the technical field of garment manufacturing equipment, and aims at solving the problems of easy damage of an automatic foot lifting and lowering device, large noise and the like of an existing sewing machine. The sewing machine comprises a machine head, a control panel, an electric control system, a pressing rod which is arranged at the machine head and a pressing foot which is arranged at the lower end of the pressing rod, a pressing spring sleeves the pressing rod, a lifting rear lever, an electromagnet which can drive the lifting rear lever to swing, a lifting front lever which can drive the pressing rod to elevate and a lifting pull rod which connects the lifting rear lever and the lifting front lever are arranged in the machine head, the control panel can regulate voltage for the electromagnet provided by the electric control system. According to the method, the driving force when the pressing foot is driven to elevate by the electromagnet is flexibly adjusted by controlling the voltage and conduction time of the electromagnet, external force in the direction opposite to lowering foot pressing is buffered and release, so that the impacting force is greatly reduced, the wearing is reduced, and noise is reduced.

Description

technical field [0001] The invention belongs to the technical field of clothing manufacturing equipment, and relates to an automatic presser foot lifter structure of a sewing machine, in particular to a buffering and noise reduction control method for the automatic presser foot lifter of 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. The presser foot is an important part on the sewing machine. The working process of the sewing machine needs to lift the presser foot of the sewing machine. At present, the sewing machine has two modes of operation, manual and automatic, to lift the presser foot. The manual presser foot lifting method is to manually driv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D05B29/02
Inventor 应振华洪志敏
Owner JACK SEWING MASCH CO LTD
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