Press die lifter rail

Details Press die lifter rail Press die lifter rail

1986-03-28

1987-06-02

Spruill, Robert L.

Metal deforming

With means to drive tool

With means to permit tool positioning

72446, 100918, 384 58, B21J 1308

Patent

active

046692975

ABSTRACT:
A die lifter rail adapted to be inserted into the open end of a conventional inverted T-slot in the bolster plate of a press has a narrow support bar dimensioned to extend lengthwise within the narrower stem portion of the T-slot and a plurality of sets of vertically stacked Belleville springs spaced lengthwise of the support bar and resiliently supporting it for vertical movement. The Belleville springs have a diameter substantially greater than the width of the support bar and corresponding generally to the width of the wider base portion of the t-slot. Studs extending vertically upwardly through the Belleville springs have a sliding fit with bores in the support bar to guide its vertical movement. A plurality of longitudinally spaced rollers are journalled in the support bar and project above the upper face thereof to support a die for sliding movement on the press bolster plate.

REFERENCES:
patent: 3139676 (1964-07-01), Grover
patent: 4258620 (1981-03-01), Sallander
patent: 4317358 (1982-03-01), Yonozawa et al.
patent: 4459909 (1984-07-01), Takagi

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