Disconnection detection device and method
A broken wire detection and curve technology, which is applied to auxiliary devices, embroidery machine mechanisms, embroidery machines, etc., can solve the problems of limited detection accuracy and low detection accuracy of detection devices.
Active Publication Date: 2018-03-02
BEIJING DAHAO TECH
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Problems solved by technology
[0005] The invention provides a broken wire detection device and method, which are used to solve the problems of limited detection accuracy and low detection accuracy of existing detection devices
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[0033] In order to make the purpose, 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 in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. 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.
[0034] figure 1 A schematic structural diagram of a wire breakage detection device provided by an embodiment of the present invention, such as figure 1 As shown, the disconnection detection device provided in this embodiment includes:
[0035] Thread take-up mechanism 10, main shaft 20, main control board 30, several thread passing wheels 4...
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The invention provides a broken thread detection device and method. The device comprises a stitching mechanism, a thread taking-up mechanism, a main shaft, a main control panel, a plurality of thread passing rollers, a main shaft photoelectric coder for monitoring angular position information, rotation direction information, rotation speed information and mechanical zero-point information of the main shaft in real time, a sensor for detecting the rotation angle information and rotation direction information of thread passing rollers and a broken thread detection control panel, wherein the main control panel is respectively connected with the main shaft and the broken thread detection control panel; the main shaft photoelectric coder is respectively connected with the main shaft and the main control panel; the thread passing wheel is connected with the thread taking-up mechanism by virtue of an upper thread, and the thread taking-up mechanism drives the thread passing rollers to rotate by virtue of the upper thread; and the sensor is respectively connected with the thread passing roller and the broken thread detection control panel. According to the broken thread detection device and method, by detecting the rotation direction and rotation angle of the thread passing roller, the precision for detecting the state of the upper thread and a bottom thread is improved, and the detection accuracy is relatively high.
Description
technical field [0001] The invention relates to the field of wire breakage detection, in particular to a wire breakage detection device and method. Background technique [0002] Monitoring the status of the upper thread and the bottom thread during the embroidery production process is an important means to ensure the quality of embroidery. [0003] Existing detection devices usually use a 25-tooth grating disc and a corresponding optocoupler to detect the state of the upper thread or the lower thread. During embroidery, the thread-passing wheel drives the grating disc to rotate, and the generated pulse signal is received by the optocoupler. If the upper thread is broken or the bottom thread is gone, the rotation state of the thread-passing wheel will be different, and the corresponding pulse signal received by the optocoupler will also be different. Different, by analyzing the received pulse signal, the state of the upper thread or the bottom thread can be judged. [0004]...
Claims
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IPC IPC(8): D05C11/14D05C13/02
Inventor 茹水强马玉晨王宁
Owner BEIJING DAHAO TECH