Injection molding apparatus with alternatively shuttled mold sections
OwnerJames W. Eggersinventor
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Abstract
A multiple mold assembly is disclosed for molding articles in an injection molding apparatus. The assembly includes two molding sections that are alternatively shuttled from positions wherein one of the molding sections is in position for a molding operation, and the other molding section is in position for loading of inserts, performing preparatory or finishing operations, or removal of molded articles, to the reverse positions. The shuttle assembly of this invention is particularly adapted for use in a horizontal injection molding apparatus and for insert molding.
Claims13
A shuttle mold assembly for a horizontal injection molding apparatus including a fixed and movable platen, comprising:
- means on the shuttle assembly for mounting said assembly between said fixed and movable platens;
- a first shuttle mold mounted for movement on said assembly and including at least one molding cavity;
- a second shuttle mold mounted for movement on said assembly and including at least one molding cavity;
- and
- means connected to the molds for alternatively moving said first and second shuttle molds between a position on said assembly where one of said molds is between said fixed and movable platens for a molding operation and the other of said molds is to the side of said fixed and movable platen and said one of said molds so that loading or unloading operations may be performed on said other of said molds during said molding operation, and a position where said other of said molds is between said fixed and movable platens for another molding operation and said one of said molds is to the side of said fixed and movable platens and said other of said molds so that loading or unloading operations may be performed on said one of said molds during said another molding operation.
In an injection molding apparatus including a fixed platen, a movable platen, and means for moving the movable platen towards and away from said fixed platen, the improvement comprising a shuttle molding assembly mounted between said fixed and movable platens, said molding assembly including:
- a first mold mounted for movement on said shuttle assembly and at least one cavity therein that cooperates with one of the platens to define a mold cavity;
- a second mold mounted for movement on said shuttle assembly and including at least one mold cavity therein that cooperates with one of the platens to define a mold cavity;
- means attached to the molds for moving each of said molds movable along said shuttle assembly along axes substantially perpendicular to the axis of movement of said movable platen;
- and
- said shuttle assembly including means for moving each of said molds along an axis substantially parallel to the axis of movement of said movable platen, whereby said molds can be alternatively placed between said platens so that while molding operations are preformed with one mold, loading and unloading operations may be performed on the other of said molds.
Dependencies are inferred from the claim text.