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US 2015/0375427 A1Published application
Angled-Mold Core Actuating Mechanism
OwnerHeng Man HOONGinventor
Life of this patent
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Abstract
The present invention provides an angled-mold core actuator (180, 280, 380). When actuated, an angled-cavity forming core (158) is extended into a mold cavity defined by a mold insert (154). The angled-cavity forming core (158) is disposed at a 3-dimensional angle into the mold insert (154) to form a cavity (104) in a molded product. The angled-cavity forming core is actuated by a driven pin (186, 286, 386) of the angled-mold core actuator (180, 280, 380).
Claims19
A 3-dimensional angled cavity forming apparatus comprising:
- an actuator body having two bores disposed axially at an angle to each other;
- a drive pin and a driven pin separately disposed in the two bores so that the drive and driven pins are slidably guided for reciprocation in the respective bore;
- wherein a portion of the drive or driven pin disposed inside the actuator body has a longitudinal flat formed parallel to the longitudinal axis of the relevant pin;
- a stopper pin disposed in the actuator body to cooperate with the longitudinal flat formed on the drive or driven pin;
- a free end of the driven pin is configured as a cavity forming core in association with a mold insert and defines a 3-dimensional cavity within the mold insert;
- and
- a channel of gradual changing direction for communicating between the two bores, with the channel being filled with an incompressible material so that when the drive pin is axially displaced, displacement of the drive pin is transmitted axially to the driven pin.
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A method for forming a 3-dimensional angled-cavity in a molded product, the method comprising:
- transferring translation of a drive pin to a driven pin, wherein the drive and driven pins are disposed at an angle to each other;
- actuating the driven pin to drive an angled-cavity forming core into a mold cavity, wherein the angled-cavity forming core is disposed at a 3-dimensional angle in the mold cavity;
- filling the mold cavity with a molten compound and allowing the molten compound to cool and to solidify for it to take the shape of the mold cavity and angled-cavity forming core;
- and
- retracting the angled-cavity forming core and then opening the mold supporting the mold insert, which defines the mold cavity, to release a molded product.
2 more elements
Dependencies are inferred from the claim text.