Hydraulic position control for mechanical power press slides

Details Hydraulic position control for mechanical power press slides Hydraulic position control for mechanical power press slides

1980-05-05

1981-09-15

Wilhite, Billy J.

Presses

Portable receptacle lid applying

With gathering of contents

100257, B30B 126

Patent

active

042890667

ABSTRACT:
A mechanically driven power press has vertical slide mechanism adapted to engage and reciprocate the upper movable element of a die set. Means for adjusting the shut height of said slide including a cylinder secured to said slide and a piston slidable therein and having threaded connection with a portion of said cylinder for shut height adjustment. An hydraulic chamber operable to effect working strokes of said slide. The shut height adjustment has a second threaded portion whereby when said first cylinder is pressurized the threaded parts in engagement with the threaded portion of the piston are forced apart to eliminate thread clearance and lock the shut height adjustment.

REFERENCES:
patent: 3400625 (1968-09-01), Wrona
patent: 3662640 (1972-05-01), Wrona
patent: 4166415 (1979-09-01), Spanke

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