Class / Patent application number | Description | Number of patent applications / Date published |
264328120 | Including specified direction or condition of flow in mold | 11 |
20080246188 | Method and apparatus for prediction of amount of deformation due to shrinkage of molded article - The method of predicting the amount of deformation due to shrinkage of a molded article of the present invention finds a support point P of the bending moment M from a distribution of shrinkage rates of a molding material forming a molded article | 10-09-2008 |
20090261511 | SIDE GATE TYPE INJECTION MOLDING DIE AND MOLDED COMPONENT MANUFACTURING METHOD USING THE SAME - A side gate type injection molding die prevents a weld line from being generated on a molded component made of a resin material to which a brightening agent is added, avoiding inferior appearance. The side gate type injection molding die including a product portion | 10-22-2009 |
20090315218 | INJECTION MOLD AND MOLDING METHOD FOR RESIN MOLDING - Molten resin supplied from a sprue to a runner in a mold closed state flows substantially radially in the runner and then flows from an entire circumferential edge portion of the runner into a cavity via a film gate. When the molten resin is filled in the cavity and molding is completed, the core part is slid while keeping the mold closed state to thereby cut a thin portion formed in the film gate in a manner of pulling the runner part by Z pins. After gate cutting, when the movable mold is opened with respect to the fixed mold, the resin molding (ring-shaped part) formed in the cavity is taken out. | 12-24-2009 |
20100264565 | METHOD AND DEVICE FOR FEEDING MOLTEN RESIN, AND METHOD FOR MANUFACTURING MOLDED ARTICLE BY USING THE FED MOLTEN RESIN - A method and a device for feeding a molten resin capable of accurately feeding the molten resin without the delay of feed timing by preventing the molten resin from adhering to route members before it seats on a mold to increase the positioning accuracy of the molten metal in the mold, and a method of manufacturing a molded part by using the fed molten resin. Vibration is provided to the route members such as molten resin guide pins ( | 10-21-2010 |
20110233824 | METHOD OF MOLDING A HOLLOW BODY OF REVOLUTION - A method of molding by injecting plastics material into a mold to make a part that is symmetrical about an axis of revolution, the part being hollow with a through passage along the axis, the part having two axial ends each defining an annular opening, the method comprising injecting the plastics material into the mold via an annular opening in an axial end of the part along an annular injection line, the plastics material containing solid particles of the flake or pearlescent type, thereby imparting flake and/or pearlescent highlights to the molded part. | 09-29-2011 |
20120248652 | INJECTION MOLDING FLOW CONTROL APPARATUS AND METHOD - An apparatus for controlling the rate of flow of mold material to a mold cavity, including a valve system in fluid communication with an actuator to drive the actuator at one or more rates of travel, the valve system having a start position, one or more intermediate drive rate positions and a high drive rate position, the start position holding the valve pin in a gate closed position; a controller that instructs the valve system to move from the start position to the one or more intermediate drive rate positions and to remain in the one or more intermediate drive rate positions for one or more corresponding predetermined amounts of time and further drives the valve system to move from the one or more intermediate drive rate positions to the high drive rate position on expiration of the one or more predetermined amounts of time. | 10-04-2012 |
20140339737 | INJECTION MOULDING PLASTIC COMPONENTS WITH A SLIT - A method of injection moulding a plastics component includes providing a first mould member with a mould cavity, which is defined by an internal surface, and a second mould member with an external surface whose shape is complementary to the shape of the mould cavity. Either the internal surface or the external surface carry an elongate formation with an elongate apex. The method includes advancing the second mould member into the mould cavity such that the apex is spaced from the opposed one of the internal surface and the external surface by a predetermined distance and the internal surface of the first mould member and the external surface of the second mould member together define a mould space. Molten polyolefin material is then injected into the mould space to substantially fill it. The predetermined distance is so dimensioned that the polyolefin material does not completely fill the space between the apex and the opposed surface and the slit is thus formed. | 11-20-2014 |
20150076736 | CONTROL METHOD FOR INJECTION MOLDING MACHINE - In an injection process in which a screw or a plunger is advanced to inject a molten resin into a mold, the advance of the screw or the plunger is stopped and held just before a leading flow end of the resin reaches a gate portion, and the advance of the screw or the plunger is resumed for an injection operation after the passage of a predetermined period. | 03-19-2015 |
20150091213 | INJECTION MOLDING FLOW CONTROL APPARATUS AND METHOD - An apparatus for controlling the rate of flow of mold material to a mold cavity, the apparatus comprising: an injection molding machine and a manifold; an actuator interconnected to a valve pin having a tip end; a valve system in fluid communication with the actuator to drive the actuator at one or more rates of travel, the valve system having a start position, one or more intermediate drive rate positions and a high drive rate position, the start position holding the valve pin in a gate closed position; a controller that instructs the valve system to move from the start position to the one or more intermediate drive rate positions and to remain in the one or more intermediate drive rate positions for one or more corresponding predetermined amounts of time and further drives the valve system to move from the one or more intermediate drive rate positions to the high drive rate position on expiration of the one or more predetermined amounts of time. | 04-02-2015 |
20160136854 | ACTUATOR SYSTEM FOR ROTATING VALVE PIN - An injection molding apparatus comprising an injection molding machine, a manifold, a closure valve pin, a first actuator having a linear or axial driver, a second actuator comprising a rotor interconnected to either the closure valve pin or to a second valve pin such that either the closure valve pin or the second valve pin is rotatably driven in unison with the rotor around the rotation axis, the closure pin or second pin being disposed and rotatable within the flow of injection fluid flowing through a flow channel leading to a mold cavity. | 05-19-2016 |
20160176084 | METHOD AND APPARATUS FOR SUBSTANTIALLY CONSTANT PRESSURE INJECTION MOLDING OF THINWALL PARTS | 06-23-2016 |