Apparatus for exercising a live hinge
AssigneeHusky Injection Molding Systems Ltd.
InventorsJacek Kalemba, Muhammad Anwar
Life of this patent
Estimating the term…
Abstract
The present invention provides a device for exercising a live hinge formed integrally between a vessel portion and a lid of an article during injection molding. In an embodiment, the device includes a core block for forming the vessel portion and a movable side core for forming the lid. The side core has a molding position for forming the article, and an ejection position for ejecting the article from the core block. The device also includes an exercising member that is movable with the side core. The exercising member closes the lid and exercises the hinge during travel from the molding position to the ejection position.
Claims39
A slide assembly comprising:
- a slide laterally moveable in relation to a first core portion between a molding position and an ejection position;
- a second core portion attached to said slide;
- said first and second core portions cooperative with complementary cavity portions in said molding position to form respective first and second parts of an article having a live hinge integrally formed between said parts;
- and,
- an exercising member movably connected to said slide;
- said exercising member for moving said second part to exercise said hinge while said slide moves from said molding position into said ejection position.
An exercising member for exercising a live hinge formed integrally between a first portion and a second portion of an article during injection molding;
- said first portion being molded using a first core portion and a cavity portion;
- said second portion being molded using a movable second core portion and said cavity portion;
- said second core portion movable from a molding position to an ejection position;
- said exercising member comprising:
- an attachment movable with said second core portion;
- and,
- an engagement member connected to said attachment for moving said second portion and exercise said hinge during movement from said molding position into said ejection position.
A mold for molding an article having a first part and a second part and a live hinge integrally formed therebetween, said mold comprising:
- a first core portion;
- a slide laterally moveable in relation to said first core portion between a molding position and an ejection position;
- a second core portion movably connected to said slide;
- a cavity block having an injection nozzle receptacle;
- said cavity block movable to engage said injection nozzle receptacle with said core portions in said molding position for an injection of a material into a space defined between said core portions and cavity block to form said article within said space;
- said cavity block movable away from said assembly after said injection and prior to said slide moving into said ejection position;
- and,
- an exercising member movably connected to said slide;
- said exercising member for moving said second part to exercise said hinge while said slide moves from said molding position into said ejection position.
A device for performing an action on a just-molded injection molded article that is at least partially retained on a first core portion or on a cavity portion of an injection mold, said mold including at least one movable second core portion, said device comprising:
- a follower movable with said at least one second core portion;
- said follower for changing said article while said at least one second core portion moves into an ejection position.
A method for exercising a live hinge formed integrally between a first portion and a second portion of an article during injection molding, said method comprising the steps of:
- in a molding position, forming said first portion in a first core portion while forming said second portion in a movable second core portion;
- and,
- moving said second core portion from said molding position to an ejection position while exercising said live hinge with an exercising member movable with said second core portion.
Dependencies are inferred from the claim text.