Metal deforming – With means to handle work or product – Including means to permit maneuvering of work or product at...
Patent
1983-07-14
1985-06-18
Crane, Daniel C.
Metal deforming
With means to handle work or product
Including means to permit maneuvering of work or product at...
72422, 72 24, 226165, 226158, B21D 4311, B21D 4313
Patent
active
045234493
ABSTRACT:
A grip-feed machine for gripping a material in the form of strip or the like and feeding the gripped material in a bending machine which has a sun gear, comprising: a guide bracket having a guide shaft securely received therein; a cradle member having lower and upper portions and movable axially forwardly and backwardly on and along the guide shaft and formed at the lower portion thereof with a rack gear in parallel to the guide shaft; a gripping mechanism for gripping the material and feeding the gripped material in the forward and backward directions of the guide shaft; a pinion gear held in mesh with the rack gear of the cradle member; a direct current servomotor for driving the pinion gear to rotate about an axis thereof; an angular position detector having mounted thereon a detecting gear which is held in mesh with the sun gear and adapted for detecting the angular position of the detecting gear to produce a pulse signal indicative of the angular position of the detecting gear; and control mechanism for controlling numerically the direct current servomotor to reliably adjust gripping of the material and feeding of the gripped material in the forward and backward directions on the basis of the pulse signal indicative of the angular position of the detecting gear which is held in mesh with the sun gear.
REFERENCES:
patent: 3385094 (1968-05-01), Brutting
patent: 3658173 (1972-04-01), Conti
patent: 3757961 (1973-09-01), Jacobs
patent: 4059213 (1977-11-01), Toomay
patent: 4203514 (1980-05-01), Hirai
patent: 4304347 (1981-12-01), Finzer et al.
patent: 4356904 (1982-11-01), Siarto
Moriyama Yukinori
Ozaki Tsukasa
Crane Daniel C.
Teijin Seiki Company Limited
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