Injection-molding machine
AssigneeFerromatik Milacron GmbH
InventorsSven Engelmann, Rüdiger Saum, Thorsten Thümen
Life of this patent
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Abstract
The production of a plastic molded part utilizes a barrier layer embedded in plastic. Plastic is injection-molded successively in different cavities of the injection mold onto a three-dimensional preform made from a cut of a multi-layer barrier film, which multi-layer barrier film comprises a barrier layer coated with plastic on both sides. The plastic coating of the barrier film cut is at least superficially melted by the injected plastic melt. And the preform is supported by a support formed on the corresponding partial mold on the respective opposite side.
Claims8
An injection-molding machine comprising:
- two mold mounting plates (1, 3) that can be moved relative to one another,
- a closing unit,
- a turning unit (9) disposed between the mold mounting plates, and
- at least two injection units, wherein the two mold mounting plates carry a first and a second sub-tool (7, 8) and the turning unit comprises a third sub-tool (14), which can be rotated about an axis of rotation (15) oriented parallel to the closing axis (2) and comprises multiple hollow spaces (18), each hollow space having interconnected openings open both in the direction of the first sub-tool and in the direction of the second sub-tool and disposed around the axis of rotation and structured to be the same, which hollow spaces, when the tool is closed, delimit differently structured cavities together with both the first and the second sub-tool (7, 8), wherein the cavities delimited by the first, second, and third sub-tool (14) can be charged, in one position (A) of the third sub-tool, by an injection unit assigned to the first mold mounting plate (1), through the first sub-tool (7), and, in a different position (B) of the third sub-tool (14), by an injection unit assigned to the second mold mounting plate (3), through the second sub-tool (8).
Dependencies are inferred from the claim text.