Resonance and noise elimination method, sewing machine controller and sewing machine
A sewing machine and controller technology, which is applied in the direction of sewing machine control devices, sewing equipment, sewing machine components, etc., can solve the problems of reducing the service life of sewing machines, increasing noise, and increasing vibration of sewing machines, so as to improve the use effect and avoid resonance points , the effect of prolonging the service life
Active Publication Date: 2021-03-09
JACK SEWING MASCH CO LTD
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Problems solved by technology
However, there will be a resonance point in the process of changing the rotation speed of the sewing machine. When the rotation speed is near the resonance point, the vibration of the sewing machine will have an abnormal jump. At this time, the vibration of the sewing machine will increase abnormally and the noise will also increase.
The property of this resonance point is determined by the structure of the sewing machine itself, the casing and the material of the parts, and usually cannot be eliminated, thereby reducing the user's use effect and reducing the service life of the sewing machine
Method used
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[0041] The core of the present invention is to provide a method for eliminating resonance and noise, a sewing machine controller and a sewing machine, which avoids the actual speed of the motor from the speed range corresponding to the resonance point of the sewing machine, thereby avoiding the generation of the resonance point, thereby improving the use of the user. effect, and prolong the service life of the sewing machine.
[0042] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in th...
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The invention discloses a method for eliminating resonance and noise, a sewing machine controller and a sewing machine, comprising: pre-setting the rotational speed range corresponding to the resonance point of the sewing machine; wherein, the lower limit of the rotational speed range is the first rotational speed of the motor of the sewing machine, and the upper limit is The second speed of the motor; receive the voltage signal transmitted by the pedal of the sewing machine in real time, and determine the target speed of the motor corresponding to the voltage signal according to the preset voltage and speed correspondence; when the target speed is less than the first speed or greater than the second speed, control the motor The actual speed of the actual speed tracks the target speed in real time; when the target speed is equal to the first speed, the actual speed of the control motor is stabilized to the first speed until the target speed is equal to the second speed; when the target speed is equal to the second speed, the actual speed of the control motor is Instantaneous speed up to the second speed. It can be seen that the present application avoids the generation of resonance points, thereby improving the user's use effect and prolonging the service life of the sewing machine.
Description
technical field [0001] The invention relates to the technical field of sewing machine control, in particular to a method for eliminating resonance and noise, a sewing machine controller and a sewing machine. Background technique [0002] At present, the speed of sewing machines can be continuously changed from low to high. It is generally believed that the vibration and noise of the sewing machine will increase with the increase of the speed. However, the sewing machine will have a resonance point in the process of changing the speed. When the speed is near the resonance point, the vibration of the sewing machine will have an abnormal jump. At this time, the vibration of the sewing machine will increase abnormally, and the noise will also increase. The properties of this resonance point are determined by the structure of the sewing machine itself, the casing and the material of the parts, which cannot be eliminated under normal circumstances, thereby reducing the user's use...
Claims
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IPC IPC(8): D05B69/10D05B69/30
CPCD05B69/10D05B69/30D05D2205/14D05D2305/32
Inventor 应振华
Owner JACK SEWING MASCH CO LTD