Injection molding machine including laterally displaceable piston
AssigneeEngel Maschinenbau Gesellschaft m.b.H.
InventorHeinz Leonhartsberger
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Abstract
An injection molding machine includes a machine frame, stationary and movable mold fixing plates and a cylinder plate carrying at lest one piston-cylinder unit. The cylinder plate and the stationary mold fixing plate are not connected as usual by beam members, but are connected exclusively by way of the machine frame. A piston of the piston-cylinder unit is rigidly connected to the movable mold fixing plate and is pivotable relative to a cylinder of the piston-cylinder unit.
Claims3
In an injection molding machine including a machine frame, a stationary mold fixing plate fixed to said machine frame, a cylinder plate fixed to said machine frame, a piston-cylinder unit carried by said cylinder plate and including a fixed cylinder having an axis and a piston axially movable relative to said cylinder in opposite rectilinear directions toward and away from said stationary mold fixing plate, a movable mold fixing plate carried by said piston for axial movement thereby to a mold closing position locked together with said stationary mold fixing plate, said cylinder plate and said stationary mold fixing plate being connected together exclusively by said machine frame such that a closing force generated by said piston-cylinder unit tilts said locked together mold fixing plates slightly out of a plane perpendicular to said axis, the improvement wherein:
- said cylinder is rigidly connected to said machine frame by said cylinder plate;
- and
- said piston is rigidly connected to said movable mold fixing plate and is displaceable relative to said cylinder in a direction laterally to said axis thereof.
Dependencies are inferred from the claim text.