Metal deforming – By use of 'flying tool' engaging moving work – Including orbitally-moving tool-face
Patent
1976-08-25
1977-11-22
Larson, Lowell A.
Metal deforming
By use of 'flying tool' engaging moving work
Including orbitally-moving tool-face
72196, 72465, B21D 2208
Patent
active
040590003
ABSTRACT:
A rotary embosser for embossing strip sheet metal and having a male embossing roll having a series of upstanding die formations thereon around which the sheet metal runs. One or more indentation rolls having a resilient roll surface are arranged to run in pressurized contact with said embossing roll, said resilient surface being sufficiently resilient to permit indentation of said resilient surface by said male die formations. One indentation roll may be arranged to run in contact with the embossing roll at a point around the circumference thereof spaced down stream from the contact between said embossing roll and the other indentation roll thereby applying tension and pressure to the strip thereby holding the strip in position as it passes around the embossing roll. Tension roll means is arranged upstream around which said sheet metal strip runs, whereby said sheet metal strip is maintained in tension as it passes around both the indentation roll and said embossing roll.
In some circumstances it may be sufficient merely to pass the strip between one indentation roll, and the embossing roll and still achieve a sufficient degree of indentation.
A process for the rotary embossing of sheet metal is also disclosed.
REFERENCES:
patent: 2231171 (1941-02-01), Randecker
patent: 3150707 (1964-09-01), Howell
patent: 3188948 (1965-06-01), Fischer et al.
patent: 3673838 (1972-07-01), Clempson
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