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ROVING FRAME AND APPARATUS FOR DETECTING BOBBIN OF DEFECTIVE SHAPE IN ROVING FRAME
ROVING FRAME AND APPARATUS FOR DETECTING BOBBIN OF DEFECTIVE SHAPE IN ROVING FRAME
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机译：粗纱机的粗纱机及粗纱机的检测装置
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摘要
PROBLEM TO BE SOLVED: To detect the existence of a bobbin of a failure shape, having a part of roving wound at a higher part than the normal roving winding position of a bobbin before a bobbin changing arm advances to a doffing position in a bobbin changing operation by a bobbin changing apparatus so as to hang a doffing bobbin.;SOLUTION: A roving frame 2 is equipped with projectors 25a and 26a and receptors 25b and 26b of transmission type. In the projectors 25a and 26a, light rays are advanced in parallel with a bobbin rail 3 and in a state of the bobbin rail 3 stopped at the bobbin changing position, when fill bobbins F are inclined at a fixed angle backward to a frame of the roving frame, the projectors are arranged at positions to be blocked by the upper parts of the full bobbins F. In the advance of forks 19 and 20 of a bobbin changing apparatus 5 to the doffing position in the bobbin changing operation, when a bobbin of a failure shape exists, the bobbin can not be penetrated into a space between the forks, the bobbin in a failure shape is inclined backward. When the bobbin in a failure shape is inclined at a fixed angle and the upper part of the bobbin cuts off the light rays of the projector, the bobbin is detected by the receptors 25b and 26b.;COPYRIGHT: (C)2002,JPO
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