Two-shot, four station injection mold
First Claim
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1. An injection molding system comprising:
- a turret supporting parts carriers at 90-degree intervals about a longitudinal axis;
a first and second mold portion closing together along a transverse axis substantially perpendicular to the longitudinal axis to interfit around the turret when the turret is rotated to any of four positions; and
wherein at each of the four positions, the first and second mold portions interfit with at least two parts carriers on the turret that are 90 degrees apart to concurrently form corresponding first and second molding cavities for receiving injected plastic so that one of the first and second molding cavities is formed along an axis of separation defined by direct interaction between the first mold portion and the second mold portion.
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Abstract
A two-shot molding system with four independent molding positions at ninety degree intervals allow injection of the first shot, injection of the second shot, cooling, and ejection of the product to occur simultaneously while the mold is closed. Thus, the invention decreases cycle time, increases throughput, and allows for adequate cooling time without delaying injection and ejection.
20 Citations
20 Claims
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1. An injection molding system comprising:
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a turret supporting parts carriers at 90-degree intervals about a longitudinal axis; a first and second mold portion closing together along a transverse axis substantially perpendicular to the longitudinal axis to interfit around the turret when the turret is rotated to any of four positions; and wherein at each of the four positions, the first and second mold portions interfit with at least two parts carriers on the turret that are 90 degrees apart to concurrently form corresponding first and second molding cavities for receiving injected plastic so that one of the first and second molding cavities is formed along an axis of separation defined by direct interaction between the first mold portion and the second mold portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification