Method and device for actuating a press
AssigneeReena Corporation
InventorsRudy Steger, Daniel Meidan
Life of this patent
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Abstract
An actuator for a press comprises a piston disposed through a small bore diameter high speed actuating cylinder, having a piston head disposed within the actuating cylinder and another piston head disposed within a larger bore diameter hydraulic clamping cylinder to apply the required clamping force to the press.
Claims20
An actuator for actuating opposed first and second structures, the first and second structures being movable between an open position in which the first and second structures are spaced apart, and a closed position in which the first and second structures are disposed together, comprising:
- at least one hydraulic actuating cylinder mounted to the first structure, having an inner end facing the second structure and an outer end,
- at least one hydraulic clamping cylinder mounted to the second structure,
- a piston extending out of both ends of the actuating cylinder, having a first portion providing a piston head disposed within the actuating cylinder and a second portion providing a piston head disposed within the clamping cylinder, and
- a piston lock for anchoring the piston,
- whereby the actuating cylinder can be actuated to move the first and second structures from the open position to the closed position, and when the piston is anchored in the closed position the clamping cylinder can be actuated to apply a clamping force between the first and second structures.
A method of clamping opposed first and second structures movable between an open position in which the first and second structures are spaced apart and a closed position in which the first and second structures are disposed together, by a piston extending out of ends of an actuating cylinder mounted to the first structure and having a first portion providing a piston head disposed within the actuating cylinder and a second portion providing a piston head disposed within a clamping cylinder mounted to the second structure, the actuating cylinder having an inner end facing the second structure and an outer end, the method comprising the steps of:
- a. actuating the actuating cylinder to draw the second structure toward the first structure,
- b. anchoring the piston, and
- c. actuating the clamping cylinder to clamp the second structure to the first structure.
Dependencies are inferred from the claim text.