Pipe bending processing apparatus
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United States of America Patent
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Oct 14, 2014
Grant Date -
Feb 28, 2013
app pub date -
Mar 9, 2011
filing date -
May 13, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
An object of the invention is to provide a compact and inexpensive pipe bending processing apparatus. To attain this object, provided is a pipe bending processing apparatus which positions a pipe with respect to a bending roll in response to the rotation of a rotary shaft, and bends the pipe by moving the pipe along the bending roll while pressing the pipe against the bending roll, wherein an outer cylinder in which a linear slit is formed along a bus line and a circumferential slit extending in a circumferential direction is formed at an upper end of the linear slit is arranged in a machine casing, an inner cylinder formed with a spiral groove is rotatably arranged inside the outer cylinder, the rotary shaft is inserted into the inner cylinder so as to be vertically movable and rotatable, a pin is provided in a protruding manner at the rotary shaft and is inserted into the spiral groove of the inner cylinder and into the linear slit of the outer cylinder, the inner cylinder is linked to an output shaft of a rotary actuator, and the rotary shaft is lifted and is also rotated at an uppermost position by the rotary actuator.
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