Control method and setting device for industrial sewing machine direct drive motor needle stopping position
A technology for industrial sewing machines and direct-drive motors, applied in sewing machine control devices, sewing machine components, sewing equipment, etc., can solve the problems of cumbersome adjustment, inability to continuously adjust the needle stop position, and not suitable for efficient control of industrial sewing machines. Needle device, effect of reducing hardware cost
Inactive Publication Date: 2015-06-17
NINGBO YUNSHENG ELECTRONICS CONTROL TECH
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Problems solved by technology
Therefore, this structure cannot continuously adjust the needle stop position, and the adjustment is cumbersome, which is not suitable for the efficient control of industrial sewing machines
Method used
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[0023] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.
[0024] Such as figure 2 As shown, the direct drive motor of industrial sewing machines generally adopts vector control technology, and the direct drive motor adopts an incremental quadrature encoder. The incremental quadrature encoder includes a code disc 1, a photoelectric encoder 2 and a photoelectric switch 3. The grating 5 on the code disc 1 cooperates with the photoelectric encoder 2, and a fixed number of pulses will be output when the code disc rotates once. The number of pulses is determined by the number of lines of the encoder grating. Cooperate with the generated signal as the counting reference point of the encoder counter. In this embodiment, after the motor is powered on and rotates, and after the photoelectric swit...
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The inventions discloses a control method and setting device for an industrial sewing machine direct drive motor needle stopping position. According to the method, an industrial sewing machine direct drive motor adopts an incremental quadrature encoder, an encoder count value of the needle stopping position of the industrial sewing machine direct drive motor is preset and recorded, and the direct drive motor stops rotating when a count value obtained by the direct drive motor incremental quadrature encoder is equal to the count value of the encoder of the direct drive motor needle stopping position in motor rotating. A motor controller obtains coded values of the direct drive motor at any time and compares the coded values with the needle stopping position coded value in a memorizer. A needle stopping operating machine is further provided with a nonvolatile memorizer used for storing the counter value of the needle stopping position encoder obtained from the encoder, and the counter value is under the operation of a the controller of the motor controller and transferred to the memorizer of the motor controller. By means of the control method and setting device for the industrial sewing machine direct drive motor needle stopping position, setting of the industrial sewing machine needle stopping position can be conducted directly, the needle stopping position can be adjusted continuously, the adjustment is simple and convenient, an industrial sewing machine direct drive motor needle stopping device is simplified, and the hardware cost of the system is lowered.
Description
technical field [0001] The invention relates to a method for setting a needle stop position of an industrial sewing machine. Background technique [0002] The so-called industrial sewing machine direct drive motor refers to the motor that is directly connected to the main shaft of the sewing machine through a coupling to drive the sewing machine to run. When the direct drive motor drives the main shaft of the sewing machine to rotate once, the needle bar of the sewing machine (together with the sewing machine needle) completes an up and down reciprocating motion. When the sewing machine is stopped, the sewing machine needle is automatically stopped at the specified position. Generally, there are two positions, the upper stop position and the lower stop position. [0003] At present, most of the industrial sewing machines using direct drive motors, the adjustment device of the needle stop position signal is as follows: figure 1 As shown, an aluminum substrate 40 i...
Claims
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IPC IPC(8): D05B69/22D05B69/10
Inventor 叶维民徐建民周德维丁繁轮
Owner NINGBO YUNSHENG ELECTRONICS CONTROL TECH