Cutting – Processes – Plural cutting steps
Patent
1984-07-06
1986-08-05
Yost, Frank T.
Cutting
Processes
Plural cutting steps
83 69, 83 71, 83153, 83277, 83282, B21D 2802
Patent
active
046036113
ABSTRACT:
A feed system for a punch press includes a first clamping and advancing mechanism for gripping feed stock and moving it toward the press, and a second clamping and advancing mechanism for gripping the stock and conveying the stock away from the press. A controller causes the first clamping and advancing mechanism to be operated until a predetermined number of punching operations have been performed upon the stock while the second clamping and advancing mechanism remains inoperative. After the predetermined number has been attained, the second clamping and advancing mechanism is activated and punch operations continue until a second predetermined count has been attained. Thereafter, the stock is conveyed away from the press. The invention permits stock to be conveyed through the press very rapidly, and it prevents damage to the press by accurately determining the position of the stock relative to the press.
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patent: 4399937 (1983-08-01), Scribner
"Barnes ABECO Quality Feeders, Malfunction Detectors and Controls", Barnes Engineering Company Limited, 380 Tapscott Rd., Unit 6, Scarborough, Ontario M1B 2Y8.
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