A sewing machine, a thread loosening control device and a thread loosening control method
A control device and thread loosening technology, which is applied in the field of sewing machines, can solve problems such as difficult maintenance, improper fit between the presser foot and the thread clamp, and the inability of the thread clamp to loosen the thread in time, so as to facilitate installation and improve design flexibility. Effect
Active Publication Date: 2021-07-30
JACK SEWING MASCH CO LTD
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Problems solved by technology
However, because the mechanical structure often has some linkage defects, the cooperation between the presser foot and the thread clamp is not in place, and the thread clamp cannot loosen the thread in time; at the same time, because the distance between the presser foot and the thread clamp is usually long, Therefore, the mechanical structure needs to occupy a large space, and it is not easy to maintain
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[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0030] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0031] The thread loosening control device provided by the present invention is as follows: figure 1 to attach image 3 , including the trigger part of the presser foot mechanism, the controller 1 and the driver 2 ...
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The invention discloses a thread loosening control device, which comprises a presser foot mechanism trigger part, a controller and a driver which are sequentially connected by signals; the presser foot mechanism trigger part is used to acquire the current state of the presser foot mechanism; the controller is used to When the presser foot mechanism is in the non-sewing state, an execution signal for controlling thread loosening by the thread release plate is sent to the driver, so as to realize that the driver controls the thread release by the thread release plate. The invention discloses a thread loosening control method and a sewing machine comprising the above thread loosening control device. The above-mentioned thread loosening control device can realize timely thread loosening of the thread loosening structure and ensure reliable linkage between the presser foot and the thread loosening structure.
Description
technical field [0001] The invention relates to the technical field of sewing machines, in particular to a sewing machine, a thread loosening control device and a thread loosening control method. Background technique [0002] With the continuous upgrading of my country's industry, the market demand for various types of sewing machines is increasing. [0003] The current sewing machine, aiming at the movement mode of the thread loosening structure, generally adopts the mechanical structure transmission when the presser foot is lifted to drive the thread loosening structure to loosen the thread; specifically, in the non-sewing state, when the presser foot is raised , Through the mechanical structure, the force is transmitted to the thread gripper to realize the thread loosening structure. However, because the mechanical structure often has some linkage defects, the cooperation between the presser foot and the thread clamp is not in place, and the thread clamp cannot loosen th...
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IPC IPC(8): D05B47/04D05B29/02
Inventor 宋施杓龚甫华王志
Owner JACK SEWING MASCH CO LTD