Cutting – Processes
Patent
1993-07-28
1995-07-25
Jones, Eugenia
Cutting
Processes
83 36, 83 39, 83 761, 83257, 83530, 83552, 836391, B26D 520
Patent
active
054352169
ABSTRACT:
A method for controlling punch strokes of a punch press machine includes the step of performing a first punching operation with a punching tool wherein a sheet of material is in a first preselected position. A second punching operation is then initiated with the punching tool at a variable hover height before the sheet of material reaches a second preselected position. The variable hover height of the punching tool is determined by the distance between the first and second punching operations. If the sheet reaches a predetermined in-position zone before the punching tool reaches maximum hover height, the ram changes direction moving downward. The punch reaches the material just prior to the work piece coming to a stop thereupon performing the next punching operation.
REFERENCES:
patent: 1796417 (1931-03-01), Wittek
patent: 3014393 (1961-12-01), Jackson
patent: 3298267 (1967-01-01), Schmid et al.
patent: 4116122 (1978-09-01), Linder et al.
patent: 4538493 (1985-09-01), Perazzolo et al.
patent: 4658688 (1987-04-01), Shah et al.
patent: 4823658 (1989-04-01), Spicer
patent: 5199338 (1993-04-01), Schorn et al.
patent: 5205149 (1993-04-01), Hayashi
patent: 5299478 (1994-04-01), Schorn et al.
Jones Eugenia
Strippit Inc.
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