Supported knockout pin assembly for forging machines or the like
AssigneeThe National Machinery Company
InventorsGeorge T. Payne, Gerald R. Eakin
Life of this patent
Estimating the term…
Abstract
A kickout pin support system for forging machines or the like is disclosed in which a plurality of support members are provided to support the kickout pin at intermediate locations along its length so that the pin is not damaged by the loads applied thereto. The support members are movable to predetermined, spaced support positions by air pressure, and in such positions engage associated stop surfaces along the length of the passage in which they move. With the invention, proper support can be provided for a knockout pin of substantially any length by providing an appropriate number of support members spaced along the length of the knockout pin when the pin is in its retracted position.
Claims18
A forging machine comprising a frame, a die on said frame having a die opening therein, a passage in said frame aligned with said opening, a knockout pin movable with clearance along said passage between a retracted position and an extended position, movement of said knockout pin to said extended position causing it to move in along said opening, and support means in said passage operable to support said pin intermediate its ends, said support means including a plurality of support members through which said pin extends and which are slidable thereon, said support members each being movable along said passage to an associated predetermined support position, said support members when in their predetermined support positions being spaced along said pin and cooperating to support said pin at spaced locations therealong, movement of said pin to said extended position causing said support members to move from their associated predetermined support positions along said passage toward said opening, and return means operable to return said support members to their associated predetermined support positions when said knockout pin moves to said retracted position.
A forging machine comprising a frame, a die on said frame having a die opening therein, a passage in said frame aligned with said opening, a knockout pin movable with clearance along said passage between a retracted position and an extended position, movement of said knockout pin to said extended position causing it to move along said opening, a support memberin said passage operable to support said pin intermediate its ends, said support member being slidable with respect to said pin and slidable with respect to said passage, said support member being located in a predetermined support position along the length of said passage when said knockout pin is in said retracted position, movement of said knockout pin to said extended position causing said support member to move from said predetermined support position along said passage toward said opening, and fluid pressure means operable to return said support member to its predetermined support position when said knockout pin moves to said retracted position.
Dependencies are inferred from the claim text.