Process for manufacturing the head surfaces of dies cooperating

Details Process for manufacturing the head surfaces of dies cooperating Process for manufacturing the head surfaces of dies cooperating

1997-10-30

2000-05-02

Pyon, Harold

Plastic article or earthenware shaping or treating: apparatus

Plural sets each comprising a female mold and opposed...

Molds or press members traveling transversely to molding motion

425353, 425469, 451 28, 451 62, B29C 4308

Patent

active

060565322

ABSTRACT:
A process for manufacturing head surfaces of dies cooperating with cylindrical press rolls for rotary presses. To avoid the high Hertzian stresses occurring dies for rotary presses during the interaction of the die head and the press roll, the present invention provides for designing instantaneous surface lines of the press roll extending through the instantaneous contact points between the head surface of the die head and the press roll under the action of the press roll on the die head as a set of continuously consecutive contact lines on the head surface of the die head by a tool.

REFERENCES:
patent: 2068619 (1937-01-01), Bailey
patent: 3891375 (1975-06-01), Pilewski et al.
patent: 3912441 (1975-10-01), Shimada et al.
patent: 4057381 (1977-11-01), Korsch
patent: 4817006 (1989-03-01), Lewis
patent: 5699273 (1997-12-01), Hinzpeter et al.
Shimada Keiji Apr. 6, 1993 Lever of Rotary Type Powder Forming Machine Patent Abstracts of Japan.

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