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US 4,005,961 AGranted
Pivotally mounted injection molding apparatus
AssigneeCreusot-Loire
InventorMarcel Manceau
Life of this patent
Estimating the term…
Abstract
In an injection moulding machine, the mould closure unit and injection unit are mounted on two arms articulated about a central pivot and each resting on the machine frame at a bearing point, the spacing of which is variable, the arms being relatively movable between a position for injection centrally of the mould and in which the arms are in extension one of the other, and a position for injection in the joint plane of the mould and in which the arms are substantially perpendicular to one another, the joint plane including the axis of the central pivot.
Claims5
An injection moulding machine comprising:
- a frame;
- a closure unit including a mould comprising two mould parts interengaging in a joint plane;
- an injection unit;
- and
- means associated with and supplying material for injection to said injection unit;
- means operatively associated with said arms for controlling mould closure and injection;
- a pair of arms articulated about a central pivot and each supported on said frame at a bearing point, means associated with said frame for varying the spacing of said bearing points;
- means mounting said injection unit on one of said arms;
- means mounting said closure unit on the other of said arms;
- and
- means associated with said arms for relatively moving said arms in a compass-like manner between a first position for injection centrally of said mould, in which first position said arms are in extension of each other, and a second position for injection in said joint plane of said mould, in which second position said arms are substantially perpendicular to each other, said joint plane including said central pivot axis.
8 more elements
Dependencies are inferred from the claim text.