Method for minimizing scrap loss in making a drawn container

Details Method for minimizing scrap loss in making a drawn container Method for minimizing scrap loss in making a drawn container

1987-07-14

1988-11-08

Crane, Daniel C.

Metal deforming

With randomly-actuated stopping

Responsive to condition of work or product

83 72, 83 63, 83371, 192127, B21C 5100

Patent

active

047826789

ABSTRACT:
A method of minimizing scrap loss in making a drawn container in a multi-die set cupping or end shell press which includes monitoring the sheet for defects before entering the press. The monitor is adapted to detect a defect, send a signal to a control when such defect is detected, and the control thereafter interrupts the operation of the punch of at least the die set in line with the defect when the portion of the sheet having the defect therein enters the die set and suspends such operation until the defect passes through the die set.

REFERENCES:
patent: 2295078 (1942-09-01), Green
patent: 2796965 (1957-06-01), Lamoureux
patent: 3552161 (1971-01-01), Garbe et al.
patent: 4669344 (1987-06-01), Herrig

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