Patent ID: 6481488
Filing Date: 2002-11-19
Classification: B22C

Abstract:
Apparatus for producing casting mould parts by compacting a material comprising:a squeeze chamber having a longitudinal axis and including a vertical squeeze plate at a rear end and a vertical swingable plate at a front end; a rigid frame structure having a longitudinal axis parallel with the longitudinal axis of said squeeze chamber and including a front yoke to which said swingable plate is pivotally mounted whereby said swingable plate swings away after compaction of the material into a mould part to allow passage of the mould part from the squeeze chamber by a forward movement of the squeeze plate, guide columns to which said front yoke is mounted, and a pull yoke located behind said squeeze chamber and connected to said guide columns; at least two respective fixed guides in which at least two respective said guide columns are respectively journalled for movement parallel to the longitudinal axis of said squeeze chamber, whereby said guide columns, said pull yoke and said front yoke are together movable relative to said squeeze plate between a compaction configuration and an extraction configuration of said squeeze chamber, and such that said guides are located closer to said front yoke when said squeeze chamber is in the compaction configuration than when said squeeze chamber is in the extraction configuration; and a guiding means for guiding said pull yoke and hence said frame structure for movement between the compaction and the extraction configuration of said squeeze chamber, and against movements in a plane perpendicular to the longitudinal axis of said frame structure, said guiding means being closer to said pull yoke when said squeeze chamber is in the compaction configuration than when said squeeze chamber is in the extraction configuration.