Detection device for judging whether yarns are broken or not
A detection device and yarn technology, applied in textiles and papermaking, etc., can solve the problems of inability to accurately judge yarn breakage, inability to make correct judgments, inability to make correct judgments, etc.
Active Publication Date: 2014-01-29
YICHANG JINGWEI TEXTILE MACHINERY
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Problems solved by technology
When the fine denier yarn is double-strand straight-twisted, the tension fluctuation of the broken yarn is small, and the pressure-type yarn broken yarn detection device cannot make a correct judgment
The photoelectric yarn broken yarn detection device judges whether the yarn is broken through the voltage change caused by the change of yarn displacement. In the straight twisting process, when one strand of yarn is broken, another strand of yarn will pass through the photoelectric yarn breakage detection device. In this case, it cannot make a correct judgment.
In short, whether it is a pressure type or a photoelectric yarn breakage detection device, it cannot accurately judge the breakage of one strand of yarn when detecting double-ply fine-denier straight-twisted yarn breakage.
Method used
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Embodiment Construction
[0020] like Figure 1~3 Among them, a detection device for judging whether the yarn is broken or not, includes a mounting base plate 1, and is characterized in that: the middle part of the balance bending plate 7 is hinged with the mounting base plate 1 through a shaft 6, and the shaft 6 is supported on the bearing through a bearing 5 On the seat 4, the bearing seat 4 is fixedly connected with the mounting seat plate 1, the balance bending plate guide end 8 of the balance bending plate 7 is provided with a guide wheel 9, and the balance bending plate counterweight end 2 of the balance bending plate 7 is provided with a counterweight block 15;
[0021] A micro switch 12 is also provided on one side of the counterweight end 2 of the balance bent plate, and the normally open contact drive piece 14 of the micro switch 12 is in contact with the balance bent plate contact portion 3 of the counterweight end 2 of the balance bent plate;
[0022] The balance bent plate contact portion...
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A detection device for judging whether yarns are broken or not comprises a mounting base plate, and is characterized in that the middle of a balanced bent plate is hinged to the mounting base plate through a shaft, a godet wheel is arranged at a yarn guide end of the balanced bent plate, a counterweight block is arranged at a counterweight end of the balanced bent plate, a microswitch is further arranged on one side of the counterweight end of the balanced bent plate, a normally open contact driving piece of the microswitch contacts with a contact portion of the counterweight end of the balanced bent plate, and the contact portion of the balanced bent plate is positioned on one side opposite to the counterweight block. According to the detection device for judging whether the yarns are broken or not, the working condition of yarn breakage can be accurately judged by matching the balanced bent plate with the counterweight block and the microswitch, and one strand of broken yarn can be detected when double strands of fine denier yarns are straightly twisted.
Description
technical field [0001] The invention relates to parts of a twisting machine in a textile machine, in particular to a detection device for judging whether a yarn is broken. Background technique [0002] Known broken yarn detection devices mainly include pressure type and photoelectric type yarn broken wire detection devices. The pressure-type yarn breakage detection device judges the problem of yarn breakage in one strand or two strands through the change of the force of the yarn on the pressure sensor. Only when the tension changes are also large can a correct judgment be made. When the fine denier yarn is double-strand straight-twisted, the tension fluctuation of the broken yarn is small, and the pressure-type yarn broken yarn detection device cannot make a correct judgment. The photoelectric yarn broken yarn detection device judges whether the yarn is broken through the voltage change caused by the change of yarn displacement. In the straight twisting process, when one ...
Claims
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IPC IPC(8): D01H13/16
Inventor 李永明汪斌吴磊闫中元杨华明陈志猛
Owner YICHANG JINGWEI TEXTILE MACHINERY