Pipe forming roll apparatus and method

Details Pipe forming roll apparatus and method Pipe forming roll apparatus and method

1998-09-08

2000-03-28

Crane, Daniel C.

Metal deforming

With use of control means energized in response to activator...

Metal deforming by use of roller or roller-like tool element

72179, 72247, 72 52, B21D 514

Patent

active

060416327

ABSTRACT:
A forming stand for continuously forming a skelp material into a pipe, by pressure of spaced-apart forming rolls supported by spaced upper and lower shafts, the forming rolls having two portions, with one portion fixedly fitted on one side of its shaft, a sleeve slidably fitted to the other end of the shaft and fixedly secured to the sleeve and slidable with respect to the shaft; a bearing box for supporting one side of the associated shaft; a bearing box supporting the other side of the associated shaft through the sleeve; upper and lower stand supporting frames for supporting both of the bearing boxes to be movable in an axial direction; and supporting columns for supporting the stand supporting frames; the pipe-forming force is continuously measured and the forming operation is adjusted such that the measured value of pipe-forming force does not exceed a predetermined pipe-forming upper limit.

REFERENCES:
patent: 1078240 (1913-11-01), Barbour
patent: 3132547 (1964-05-01), Doyle
patent: 4487044 (1984-12-01), Fapiano
patent: 4918964 (1990-04-01), Engel
patent: 5060498 (1991-10-01), Seto
patent: 5301869 (1994-04-01), Toyooka
patent: 5673579 (1997-10-01), Hashimoto
patent: 5901592 (1999-05-01), Okamura

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