B - Operations – Transporting – 30 – B
Patent
B - Operations, Transporting
30
B
100/42
B30B 15/04 (2006.01) B30B 15/00 (2006.01)
Patent
CA 1183715
ABSTRACT The present invention relates to a mechanical press, and in particular to a guiding arrangement for the reciprocating slide of such a press. The press comprises a crown (20), the bed (14) and a plurality of vertical uprights (18) connecting the crown and bed. A plurality of guideposts (58) are rigidly connec- ted to the crown and depend downwardly therefrom, the guideposts being parallel to each other and substantially perpendicular to the plane of the bed. The guideposts each have free ends which are unsupported and terminate short of the bed of the press so that the parallelism of the guidepins is determined solely by their connection to the crown. In order to counteract the non-vertical forces exerted on the slide (56) by the connection arms (142) which tend to cause the slide to tilt about a horizontal axis perpendicular to the axis of the crankshaft, bearings (250) are mounted between the connection assembly and the crown. The bearings exert restraining forces on the connection assembly in a direction perpendicular to the axis of reciprocation of the slide and long lines which intersect the axis of rotation of the wrist pins (152) In a preferred embodiment of the invention, the bearings are gydro- static bearings (250) interposed between the connection pistons and their respective cyclinders (158) although hydrodynamic roller bearings could be used.
408110
Schoch Daniel A.
Wissman Terry L.
Macrae & Co.
Minster Machine Company (the)
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