Plastic article or earthenware shaping or treating: apparatus – With apparatus assembly or dismantling means or with idle part – For extrusion or injection type shaping means
Patent
1992-05-13
1994-04-12
Heitbrink, Tim
Plastic article or earthenware shaping or treating: apparatus
With apparatus assembly or dismantling means or with idle part
For extrusion or injection type shaping means
425574, 425575, B29C 4566
Patent
active
053021053
ABSTRACT:
A method for changing of mold blocks on an injection molding machine, in which the mold block can be clamped in a centered position between a movable clamping plate and a fixed clamping plate and, for replacement of the mold, can be moved out of the machine parallel to the clamping surface. Upon the installation of the mold, the mold block is initially substantially restricted in its freedom of movement in the open condition of the clamping plates, in the direction of the center axis and in a direction perpendicular vertically or horizontally thereto. After being restricted in movement, the mold block is gripped from the outside in the direction of the center axis of the injection molding machine in order to avoid possible tilting movements towards the clamping plate and is held in a vertical position with the avoidance of possible tilting movements in the direction of the center axis of the injection molding machine during the movement towards each other of the clamping plates for clamping the mold block. The mold block, shortly before its final clamping by the clamping plates, is centered in the proper operating position.
REFERENCES:
patent: 4529371 (1985-07-01), Nickley
patent: 4698007 (1987-10-01), Hehl
patent: 5096404 (1992-03-01), Janos et al.
Heitbrink Tim
Mannesmann Aktiengesellschaft
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