A thread sweeping device for an electronic pattern machine

Abstract

The invention provides a thread sweeping device of an electronic pattern machine, which belongs to the technical field of garment manufacturing equipment. It solves the technical problems of complex structure and difficult control of the line sweeping device of the existing electronic pattern machine. The electronic pattern machine includes a presser bar that can move up and down reciprocatingly and a presser foot set at the lower end of the presser bar. The thread sweeping device includes a thread sweeper bar, a mounting frame and a lifting block fixed on the presser bar. There is a rotating shaft and a swing arm that can drive the rotating shaft to reciprocate. The swing arm is located above the lifting block. When the lifting block moves upward with the presser foot lever, it can contact with the swing arm and drive it to swing. One end of the thread sweeping rod is connected to the rotating shaft. , the other end of the thread-sweeping rod stretches toward the presser foot; the mounting frame is also provided with an elastic reset member capable of resetting the rotating shaft. The thread sweeping device of the present invention has the advantages of simple structure, precise control and low use cost.

Description

technical field [0001] The invention belongs to the technical field of garment manufacturing equipment, and relates to an electronic pattern machine, in particular to a thread sweeping device of the electronic pattern machine. Background technique [0002] The electronic pattern machine is a machine used by contemporary handbag factories, shoe factories, luggage factories, garment factories, leather goods factories, and furniture factories. Meet the requirements of "multi-level, multi-functional, unity and perfection". It is an electromechanical product that embodies a variety of high-tech. The head of the electronic pattern machine is usually equipped with a thread sweeping device to pull the thread and prevent the accumulation and winding of the suture. The traditional thread sweeping device uses an electromagnet to push the thread sweeping crank, and then drives the thread sweeping lever to rotate to complete the thread sweeping action. It has the following four problem...

AI Technical Summary

Problems solved by technology

The head of the electronic pattern machine is usually equipped with a thread sweeping device to pull the thread and prevent the accumulation and winding of the suture. The traditional thread sweeping device uses an electromagnet to push the thread sweeping crank, and then drives the thread sweeping lever to rotate to complete the thread sweeping action. It has the following four problems: 1. The electromagnet is driven, and the stability is poor; 2. The electromagnet needs a separate power line to provide electric energy to realize the action, and the energy saving is poor; 3. It is difficult to control the action angle of the sweeping rod directly; 4. The thread sweeping device has too many components, high production cost, difficult assembly and maintenance

[0004] The thread sweeping device in the above patent documents uses a cylinder to drive the thread sweeping hook, but there are still problems such as many parts, an additional power source is required, and it is difficult to control.

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