Metal deforming – By deflecting successively-presented portions of work during... – With cutting of work or product
Patent
1995-04-21
1998-04-21
Crane, Daniel C.
Metal deforming
By deflecting successively-presented portions of work during...
With cutting of work or product
72181, 83629, 83636, 83697, 226186, B21D 508, B21D 2800
Patent
active
057406871
ABSTRACT:
A forming apparatus for forming a selected profile in a sheet of material includes a frame, a sheet drive to advance the sheet of material through the frame, a drive assembly for powering the sheet drive, forming rollers to configure the sheet into the desired profile and a shear assembly to cut the formed sheet into desired lengths. The sheet drive includes pairs of coacting rollers with each pair comprising a driven roller connected to the drive assembly and a free-wheeling roller that is adjustably mounted relative to its associated driven roller. The shear assembly has a housing that movably mounts a pair of opposed blade mounts that have facing channels which receive lateral edges of a blade. These channels are wider than the blade thickness so that the blade freely floats and is thus self-aligning between dies. The blade has a cutting edge configured to always attack the formed sheet at a rake angle of at least five degrees so that all cutting of the formed sheet is by a scissor action as opposed to a chop cut.
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Cunningham David H.
Meyer Bruce E.
Shell Ronald W.
Crane Daniel C.
Henson Michael R.
Martin Timothy J.
New Tech Machinery Corporation
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