Press for refractory material and having removable core moving apparatus
AssigneeWehr Corporation
InventorRobert J. Dorsey
Life of this patent
Estimating the term…
Abstract
A press is disclosed for use in the manufacture of refractory products and particularly including means for causing reciprocal movement of cores into the mold cavity to thereby permit holes to be formed in the compressed refractory product. The core moving apparatus is conveniently attachable and removable from the press to permit removal or replacement of the mold box or to facilitate modification of an existing press to incorporate the means of the invention for causing movement of reciprocal cores. The core supporting structures of the core moving apparatus are also adjustably supported so as to accommodate varied numbers of cores or various arrangements of the cores.
Claims30
A press for use in compressing refractory material and comprising a press bed, a mold table, means for supporting the mold table for movement toward and away from the press bed, a mold box supported by the mold table, the mold box including at least one vertically extending mold cavity, means for compressing material placed in the mold cavity, the compressing means including a plunger assembly having at least one plunger supported by the press bed and adapted to be inserted into a portion of the mold cavity, the plunger including a core therein, the core being reciprocally movable with respect to the plunger and into and out of a second portion of the mold cavity when the plunger is received in the mold cavity, and means for causing reciprocal movement of the movable core, said means for causing reciprocal movement of the movable core including a first pair of generally parallel lift bars, means for supporting the lift bars beneath the mold table and for causing vertical reciprocal movement of the lift bars, a pair of generally parallel cross bars positioned transversely to the lift bars, extending therebetween and connected thereto for movement with the pair of lift bars, and means for connecting the core to the cross bars for vertical movement with the cross bars.
A press for use in compressing refractory material and comprising a press bed, a mold table including opposite sides, means for supporting the mold table for movement toward and away from the press bed, a mold box supported by the mold table, the mold box including at least one vertically extending mold cavity, means for compressing material placed in the mold cavity, the compressing means including a plunger assembly having at least one plunger supported by the press bed and adapted to be inserted into a portion of the mold cavity, the plunger including a core therein, the core being reciprocally movable with respect to the plunger and into and out of a second portion of the mold cavity when the plunger is received in the mold cavity, and means for causing reciprocal movement of the movable core including at least a pair of fluid cylinders, one of the cylinders being mounted on one of the sides of the mold table and the other of the fluid cylinders mounted on the other side of the mold table, the fluid cylinders including downwardly extending vertically movable pistons, and a first bar having opposite ends, one of the opposite ends being supported by one of the pistons and the other of the opposite ends being supported by one of the pistons and the other of the opposite ends being supported by the other of the pistons, and means for attaching the core to the lift bars for vertical movement with the lift bars.
A press for use in compressing refractory material and comprising a press bed, a mold table including opposite sides, means for supporting the mold table for movement toward and away from the press bed, a mold box supported by the mold table, the mold box including at least one vertically extending mold cavity, means for compressing material placed in the mold cavity, the compressing means including a plunger assembly having at least one plunger supported by the press bed and adapted to be inserted into a portion of the mold cavity, the plunger including a core therein, the core being reciprocally movable with respect to the plunger and into and out of a second portion of the mold cavity when the plunger is received in the mold cavity, means for causing reciprocal movement of the movable core, including a first pair of fluid cylinders supported by one side of the mold table and a second pair of fluid cylinders supported by the other side of the mold table, each of the fluid cylinders including downwardly extending pistons, a pair of lift bars supported by the pistons for vertical movement with the pistons, one of the lift bars being supported at its opposite ends by a first two of the pistons and the other of the lift bars being supported by a second two of the pistons, a pair of generally parallel cross bars extending between the lift bars, and means for attaching the core to the cross bars for vertical movement with the cross bars.
A press for use in compressing refractory material and comprising a press bed, a mold table, means for supporting the mold table for movement toward and away from the press bed, a mold box supported by the mold table, the mold box including at least one vertically extending mold cavity, means for compressing material placed in the mold cavity, the compressing means including a plunger assembly having at least one plunger fixedly supported by the press bed and adapted to be inserted into a portion of the mold cavity, the plunger including a core therein, the core being reciprocally movable with respect to the plunger and into and out of a second portion of the mold cavity when the plunger is received in the mold cavity, means for causing reciprocal movement of the movable core, said core moving means including a fluid motor means operably connected to said core, and means for removably attaching said fluid motor means to the mold table.
In a press for use in compressing refractory material and having a press bed, a mold table, means for supporting the mold table for movement toward and away from the press bed, a mold box supported by the mold table, the mold box including at least one vertically extending mold cavity, means for compressing material placed in the mold cavity, the compressing means including a plunger assembly having at least one plunger supported by the press bed and adapted to be inserted into a portion of the mold cavity, the plunger including a core therein, the core being reciprocally movable with respect to the plunger and into and out of a second portion of the mold cavity when the plunger is received in the mold cavity;
- apparatus for causing reciprocal movement of the movable core comprising a first pair of generally parallel lift bars, means for supporting the lift bars beneath the mold table and for causing vertical reciprocal movement of the lift bars, a pair of generally parallel cross bars extending between the pair of parallel bars and connected thereto for movement with the pair of parallel bars, and means for connecting the core to the cross bars for vertical movement with the cross bars.
Dependencies are inferred from the claim text.