Notching machine

Details Notching machine Notching machine

1989-10-17

1991-02-19

Phan, Hien H.

Cutting

With control means responsive to replaceable or selectable...

83 767, 83559, 83917, 83620, B21D 2802

Patent

active

049932926

ABSTRACT:
In a notching machine having two set collars for mounting the upper and lower knives of a blade assembly a common turning of the same around a vertical axis of rotation is controlled by an electric motor driven angular drive adjustment mechanism that includes a shaft brake mechanism for braking a pivot member of the two set collars in each of two angularly different turning positions that are counted by a pulse generator which is referenced to a rotational zero reference position. A program control unit controls two successive working strokes of a ram in such two angularly different turning positions.

REFERENCES:
patent: 2548427 (1951-04-01), Fernbach
patent: 4331050 (1982-05-01), Gergek
patent: 4535665 (1985-08-01), Fazis

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