Drawing device in a press for drawing shaped sheet-metal parts

Details Drawing device in a press for drawing shaped sheet-metal parts Drawing device in a press for drawing shaped sheet-metal parts

1991-04-22

1992-08-18

Jones, David

Metal deforming

With use of control means energized in response to activator...

Sensing work or product

72 21, B21D 2222

Patent

active

051388570

ABSTRACT:
A drawing device in a press is proposed which serves to draw shaped sheet-metal parts. In order to achieve optimum force support of the sheet holder (6), the pressure cheek (8) is regulated in a vertically adjustable manner by a four-point control system known per se. In addition to this, vertically adjustable bolts (7) having drives (15) are provided, in order to permit a specific local application of force to the sheet holder (6). This is controlled or regulated by displacement sensors (16) and force sensors (17).

REFERENCES:
patent: 2040731 (1936-05-01), Ernst
patent: 4483173 (1984-11-01), Duhamel
patent: 4489584 (1984-12-01), Gall et al.

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