With Means Between Charger And Mold To Cut Off Flow Of Fluent Stock (e.g., Needle Valve, Baffle, Etc.) Patents (Class 425/562)
  • Patent number: 11123907
    Abstract: A mould tool (100) has a first part (102) defining a first area (114) of a mould profile, an actuated part (130) defining a second, adjacent area (132) of the mould profile, which actuated part is configured to move from a moulding position to an actuated position at the end of each mould cycle to facilitate removal of a moulded component. The actuated part (130) comprises a temperature control apparatus (108) configured to control the temperature of the actuated part to influence a clearance (C) between the first part and the actuated part by thermal expansion and/or contraction of the actuated part.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: September 21, 2021
    Inventor: Ben Halford
  • Patent number: 10857712
    Abstract: A tandem mold for creating injection-molded parts from synthetic material includes a first part (2), a second part (4), a third part (6), and a guide (20, 22, 26, 28). A first parting surface is defined between the first part (2) and the third part (6), and a second parting surface is defined between the second part (4) and the third part (6). The mold also includes, for each parting surface, at least one mechanical stop (44) that is movable between a first position, where said stop prevents a drive mechanism from reaching the closed position of the mold, and a second position, or retracted position, where the mold can reach its closed position.
    Type: Grant
    Filed: November 27, 2014
    Date of Patent: December 8, 2020
    Assignee: PLASTISUD
    Inventor: Jacques Buzzo Titella
  • Patent number: 10723093
    Abstract: A process includes: supplying a main resin from outer and inner flow channel, to a joined flow channel at a predetermined supply velocity for a predetermined time; supplying a second resin from a middle flow channel to the joined flow channel simultaneously with the main resin at a predetermined supply velocity for a certain time within the predetermined time; and sliding a shut-off pin to bring the pin forefront to a predetermined position near an outlet of the inner flow channel, open to the joined flow channel, before the second resin is supplied, or during a time starting after a time from the start of the second resin supply and ending with the termination of the supply, so that the velocity of main resin supply from the inner flow channel to the joined flow channel is reduced to a predetermined level by adjusting the degree of aperture for the outlet.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: July 28, 2020
    Inventors: Junichi Chiba, Kazuhiko Shimizu, Hiroshi Hosokoshiyama
  • Patent number: 10500775
    Abstract: Apparatus and method for detecting a position of an actuator piston driving a valve pin in an injection molding system. The apparatus includes an actuator housing having a body portion, surrounding an axial bore, of a substantially non-magnetic and/or magnetically permeable material, a piston, movable within the axial bore for driving a valve pin, the piston including a magnetic member generating a magnetic field such that axial movement of the piston in the bore modifies the magnetic field according to the position of the piston relative to a detection position, and a magnetic field detector attached to an exterior surface of the body portion at the detection position for detecting the magnetic field associated with the position of the piston and generating an output signal determined by the piston position.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: December 10, 2019
    Assignee: Synventive Molding Solutions, Inc.
    Inventors: Zhuang Rui Tan, Lin Yang
  • Patent number: 9636858
    Abstract: An apparatus for controlling the rate of flow to a mold cavity including a controller instructing a valve system to drive an actuator and a valve pin and including instructions that instruct the valve system to drive an actuator and a valve pin and including instructions that instruct the valve system to move from a start position to one or more intermediate drive rate positions and subsequently from the one or more intermediate drive rate positions to a high drive rate position on receipt by the controller of a signal from a position sensor that is indicative of the valve pin having reached a second position.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: May 2, 2017
    Assignee: Synventive Molding Solutions, Inc.
    Inventors: Sergio Ribeiro de Oliveira Antunes, Christian Gotz, Juergen Wilhelm Emich
  • Patent number: 9623598
    Abstract: 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.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: April 18, 2017
    Assignee: Synventive Molding Solutions, Inc.
    Inventors: Vito Galati, Sergio Ribeiro de Oliveira Antunes, J. Andres Lopez
  • Patent number: 9521853
    Abstract: A patty-forming machine using linear displacement sensors to sense and report the position of hydraulic cylinder rods. The machine enclosure includes double sealed door openings. Mold cover lift rods are cylindrical and utilize annular seals on a top skin of the mechanical compartment. The machine comprises removable floor panels and has an easily accessible swing out electrical enclosure. The machine uses modular I/O blocks for the control solenoids, which are signal connected to a bus block. The bus block communicates between machine control and the solenoids with a single serial cable.
    Type: Grant
    Filed: January 23, 2008
    Date of Patent: December 20, 2016
    Assignee: Provisur Technologies, Inc.
    Inventors: Paul Taylor, Glenn Sandberg
  • Patent number: 9403307
    Abstract: A modeling apparatus includes a first set and a second set. The first set includes a body and a first mold structure, the first mold structure is disposed on a surface of the body. The second mold includes a movable portion, a first pushing mechanism, a valve and a second pushing mechanism. A second mold structure of the movable portion is combined with the first mold structure to form an accommodating space. The first pushing mechanism is connected to the movable portion for moving the movable portion, so as to combine the second mold structure with the first mold structure. The valve is disposed on the second mold structure for injecting plastic into the accommodating space. The second pushing mechanism is connected to the pushing component. The second pushing mechanism drives the pushing component to pierce through the movable portion, to move the modeled plastic out of the accommodating space.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: August 2, 2016
    Assignee: Wistron Corporation
    Inventors: Chun-Yen Hung, Ya-Chi Hsiao
  • Patent number: 9302416
    Abstract: An in-line single nozzle valve gate apparatus for injection molding comprises upper and lower matable annular cylinder bodies that house an annular dual sided piston having opposed pressure bearing upper and lower surfaces. The piston has a cross beam to which a valve gate pin is attached for movement therewith. The valve gate pin passes through a sprue bushing flow path to selectively open and close a part cavity gate. An interface is provided to receive molten plastic from the injection machine nozzle and pass it into the sprue bushing flow path. The cylinder bodies reside largely outside of the mold plate architecture to lessen thermal damage too piston seals.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: April 5, 2016
    Inventor: Douglas C Hepler
  • Patent number: 9233497
    Abstract: A gate valve is configured to have a first fluid flow path. In a state where a gate valve pin is at a first pin position, a front end section on an injection hole side of the gate valve pin closes an injection hole. In a state where the gate valve pin is at a second pin position that is more distant from the injection hole than the first pin position, a front end section opens the injection hole to make communication between the first fluid flow path and the injection hole and thereby form a resin supply line. In a state where a sleeve is at a first sleeve position and the gate valve pin is at the first pin position, a second fluid flow path is formed in the gate valve to connect an injection hole-side end of the first fluid flow path to outside of the gate valve and is made to communicate with the first fluid flow path and thereby form a cleaning line.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: January 12, 2016
    Assignee: Toray Industries, Inc.
    Inventors: Tamotsu Suzuki, Yoshihiro Kawahara, Yasumoto Noguchi
  • Patent number: 9039954
    Abstract: An injection tool for the production of components by an injection-molding method, the injection tool including several cavities for shaping one respective product, an injection nozzle for injecting plastic materials for each cavity, and an actuating device. The injection nozzle has an injection channel which can be closed by a nozzle needle in order to control the injection process. The actuating device is arranged to move the nozzle needle in an axial direction between a first end position and a second end position, with an adjustable stop being provided which defines the first end position.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: May 26, 2015
    Inventor: Christian Hefner
  • Patent number: 8985997
    Abstract: A valve bushing having an actuator portion and a pin guiding component is disclosed. The actuator portion has a cup-shaped body with a stepped bore that defines a chamber in which a piston for opening and closing a valve gate disposed, and also defines a transfer bore extending through a base portion of the cup-shaped body. A stand-off member elevates the cup-shaped body from the manifold. The pin guiding component defines a sealing bore that extends between a body portion and a boss that extends rearward from the body portion. The boss is received in the transfer bore of the cup-shaped body to define a thermal transfer area between the pin guiding component and the actuator portion that is spaced apart from the manifold, and the actuator portion is located relative to the pin guiding component by engagement between the pin guiding component and the stand-off member.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: March 24, 2015
    Assignee: Mold-Masters (2007) Limited
    Inventors: Peter Klobucar, Denis Babin, Fabrice Fairy
  • Patent number: 8974222
    Abstract: A nozzle-locating insulator (300), comprising: a body assembly (302), having: a spring-facing surface (304) including: spring-contact sections (306); and spring-noncontact sections (308) interposed between the spring-contact sections (306).
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: March 10, 2015
    Assignee: Husky Injection Molding Systems, Ltd.
    Inventor: Gregory Ray Hammond
  • Patent number: 8920155
    Abstract: A locking apparatus for a machine having multiple stems which axially reciprocate with respect to a stationary unit by linkage with a reciprocating common plate. The locking apparatus includes: (a) a first locking assembly capable of alternatively locking and unlocking one of the stems to the common plate; and (b) a second locking assembly capable of alternatively locking and unlocking one of the stems to the stationary unit. The second locking mechanism is configured so that, when the first locking assembly locks a stem to the common plate, the second locking mechanism automatically unlocks that stem from the stationary unit, and when the first locking assembly is unlocked from the common plate, the second locking mechanism automatically locks that stem to the stationary unit.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: December 30, 2014
    Assignee: Caco Pacific Corporation
    Inventor: Martel B. Geibel, Jr.
  • Patent number: 8899963
    Abstract: A hot nozzle for spraying of plastic components. The hot nozzle includes a multipart nozzle body including a tip inset including a tip element having a tip section protruding outwardly beyond a circumferential surface of the multipart nozzle body into a molding plate. The tip section of the tip element is penetrated by a shut-off needle which is movable in a reciprocating manner by a drive. The shut-off needle is movable between a position in which the shut-off needle closes off a feed borehole in the molding plate and a position in which the shut-off needle opens the feed borehole.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: December 2, 2014
    Assignee: Ewikon Heisskanalsysteme GmbH
    Inventor: Peter Braun
  • Publication number: 20140327173
    Abstract: Crown-flash-reduction systems, methods, and apparatuses for actively reducing the likelihood of formation of crown flash on injection-molded objects. The active reduction includes moving at least one of a valve member and a mold gate periphery in a manner that actively weakens or separates molding material present in a molded object from molding material present in the closed mold gate prior to or in conjunction with de-molding the molded object.
    Type: Application
    Filed: November 14, 2012
    Publication date: November 6, 2014
    Inventors: Edward Joseph Jenko, Abdeslam Bouti
  • Patent number: 8870563
    Abstract: Plasticizing system for plasticizing solidified-resin particle, plasticizing system, comprising: housing assembly providing: (i) melt channel configured to receive solidified-resin particle, and (ii) opposite-facing surfaces spaced apart from each other, and defining, at least in part, convergene channel configured to receive the solidified-resin particle. Opposite-facing surfaces and the convergence channel form part of melt channel. Plunger assembly is movable, at least in part, relative to opposite-facing surfaces. Plunger assembly configured to move, at least in part, solidified-resin particle relative to opposite-facing surfaces along, at least in part, convergence channel. In response to relative movement between solidified-resin particle and opposite-facing surfaces, solidified-resin particle receives, in use, plasticization-inducing effect from opposite-facing surfaces.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: October 28, 2014
    Assignee: Husky Injection Molding Systems Ltd.
    Inventor: Manon Danielle Belzile
  • Patent number: 8734146
    Abstract: An improved automatic shutoff nozzle tip which is mounted on the downstream end of a nozzle body of an injection molding machine or the like who's purpose is to act as a passageway for molten plastic fluid allowing the fluid to flow in one direction when urged to open by the pressure created by the forward motion of the plasticizing screw of said molding machine and to close when said pressure is lower than the designed opening pressure. The nozzle, having an convex outwardly extended portion that mates up with a sprue bushing or mold having complimentary convex radii, said nozzle having a orifice on the distal end that mates with a complimentary orifice of said sprue bushing. A nozzle that has a means for attachment to a nozzle body or the like with a rear seat, poppet and spring or similar device who's poppet is normally in the closed position until pressure is applied urging the poppet to move in the downstream direction and providing for a passageway for molten plastic fluid.
    Type: Grant
    Filed: October 20, 2010
    Date of Patent: May 27, 2014
    Inventor: Michael F Durina
  • Patent number: 8647095
    Abstract: A resin transfer molding (RTM) molding device is designed to mold a fiber-reinforced plastic (FRP) molded body by injecting a resin composition into a mold and by impregnating the molded body therewith. The resin composition is a chain curing polymer (CCP). A CCP accommodating layer is disposed adjacent to an outer side of the molded body. The layer contains the CCP. The layer is provided with a Vf limit value, the value defined by the curing characteristics of the CCP and the characteristics of dissipation of heat from the CCP to the exterior. An element for separating the molded body is disposed between the body and the layer.
    Type: Grant
    Filed: June 26, 2013
    Date of Patent: February 11, 2014
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Noriya Hayashi, Hiroshi Mizuno, Koichi Hasegawa, Kazuo Ota
  • Publication number: 20130287887
    Abstract: A mold-tool system (100), comprising: a valve-stem assembly (102) being configured to be: (i) intractable with a valve-actuator assembly (202) while the valve-actuator assembly (202) remains connected with a manifold assembly (614), the manifold assembly (614) being supported by a runner system (600) of a molding system (200); and (ii) removable from the runner system (600) while the valve-actuator assembly (610) remains connected with the manifold assembly (614) inside the runner system (600).
    Type: Application
    Filed: January 17, 2012
    Publication date: October 31, 2013
    Inventors: William Steven Keir, Darrin Albert MacLeod
  • Publication number: 20130287886
    Abstract: An injection-moulding machine comprising a hot runner, arranged in a manifold, for feeding a melt into a mould, a shut-off needle for optionally closing or opening the hot runner, a piston connected to the needle, is arranged in a housing with an opening and to which a fluid can be applied from both sides, and a covering plate having two fluid feeds, into the opening wherein the covering plate, the hot runner manifold and the housing are arranged in such a way that, at a first temperature of the manifold, a distance remains between the housing and the covering plate and, at a second higher temperature the thermal expansion of the manifold and/or housing causes the housing to come into contact with the covering plate, closing the opening. In a further embodiment, a flexible seal is provided between the housing and the covering plate.
    Type: Application
    Filed: January 2, 2012
    Publication date: October 31, 2013
    Inventors: Stefan Schweininger, Christian Wagner
  • Publication number: 20130251843
    Abstract: A valve gate assembly comprises a piston that is actuable between a forward position and a rear position and has a piston stop surface and a forward pressure surface. A cylinder has a cylinder stop surface that is disposed to contact the piston stop surface when the piston is in the forward position. The cylinder stop surface is radially outward of at least a portion of the forward pressure surface and a shutoff pin is substantially aligned with the axis.
    Type: Application
    Filed: May 7, 2013
    Publication date: September 26, 2013
    Inventor: Panos TRAKAS
  • Patent number: 8529820
    Abstract: Methods and apparatus adjustably control the repositioning of non-homogeneous fluid conditions across the stream of a laminar flowing fluid to a desirable circumferential position. The invention is particularly applicable to controlling non-homogeneous melt conditions at about the intersection of two flow channels in systems having hot or cold flow channels. Various mechanisms are provided that enable simple adjustments of a flow diverter within a fluid rotation device, making either static or dynamic adjustments, so that the degree of fluid flow repositioning in a runner system can be changed without the need for mold disassembly or retooling. Various forms of actuators effect adjustment and may be manually manipulated or manipulated through various powered devices.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: September 10, 2013
    Assignee: Beaumont Technologies, Inc.
    Inventor: John P. Beaumont
  • Publication number: 20130134626
    Abstract: An apparatus and method of creating a dimple on a golf ball comprises the positioning of a runner and gate in a mold in a location where it is desired to form a dimple. A polymer is injected into a mold cavity in the mold. A cutter is placed adjacent the mold. When the cutter is actuated to cut the polymer, a pocket is formed between the cutter and the polymer in the mold, thereby creating a dimple on the molded golf ball.
    Type: Application
    Filed: November 30, 2011
    Publication date: May 30, 2013
    Applicant: NIKE, INC.
    Inventor: Arthur P. Molinari
  • Patent number: 8419416
    Abstract: A mold-tool system (100) configured to accommodate a valve stem (104), the mold-tool system (100) comprising: a nozzle assembly (402) having: a nozzle-output end (408) being configured to support, at least in part, slide movement of the valve stem (104).
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: April 16, 2013
    Assignee: Husky Injection Molding Systems Ltd.
    Inventors: Domenico Favata, Claude Fran├žois Wolf, Peter Yankov, Kevin Francis Said, Darrin Albert McLeod
  • Publication number: 20130022704
    Abstract: A mold-tool assembly (100), including a stem-tip portion (102), and also including a resin-retaining device (104) being located relative to the stem-tip portion (102).
    Type: Application
    Filed: March 24, 2011
    Publication date: January 24, 2013
    Inventor: Edward Joseph Jenko
  • Patent number: 8293162
    Abstract: A method for producing a molded product consisting of a resin polymerized by a melt polycondensation reaction, comprising continuous feeding of a prepolymer in molten state from a prepolymer feeding port to a polymerization reactor, discharging from holes of a porous plate, followed by polymerization while dropping along a supporting substrate under reduced pressure, and molding by transferring to at least one molding machine in molten state without solidification, wherein transfer pressure to said molding machine is controlled so as to maintain at an arbitrary pressure from 0.1 to 100 MPa (absolute pressure).
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: October 23, 2012
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Hiroshi Yokoyama, Hiroshige Okamoto, Muneaki Aminaka, Kouji Takeuchi, Hironobu Yamauchi, Ken Someya
  • Patent number: 8282870
    Abstract: Disclosed is a safety connector (100; 200; 300) for a hot runner (600) having a valve stem (104) and an actuation assembly (102), the safety connector (100) including: a shear member (106) releasably interlocking the valve stem (104) with the actuation assembly (102), once the shear member (106) has interlocked the valve stem (104) with the actuation assembly (102), the valve stem (104) becomes movable in response to movement of the actuation assembly (102), and the shear member (106) being configured to shear destructively, and responsive to a predetermined undesired force acting on the shear member (106), the shear member (106) shears and the valve stem (104) becomes released from the actuation assembly (102).
    Type: Grant
    Filed: March 17, 2009
    Date of Patent: October 9, 2012
    Assignee: Husky Injection Molding Systems Ltd.
    Inventors: Abdeslam Bouti, Stephen Linwood Gray, Thomas Andrew Lawrence
  • Patent number: 8277213
    Abstract: An adaptor bushing for an injection molding apparatus comprising a manifold, a nozzle assembly and a nozzle retention device, comprises: (i) a bushing passage for fluid communication between a passage of the manifold and a nozzle passage; (ii) at least one transition region joining portions of the bushing passage; and, (iii) at least one alignment surface effective to (a) align longitudinal centerlines of the bushing passage, manifold passage and nozzle passage and (b) eliminate or reduce relative tilt of the adaptor bushing, nozzle assembly and manifold so that with the adaptor bushing clamped between the manifold and nozzle assembly, leakage of material at the interfaces of the bushing passage with the manifold passage and nozzle passage is eliminated or reduced to an acceptable level under normal operating conditions. A manifold and nozzle assembly construction comprises an adaptor bushing interposed between a manifold passage and a nozzle passage.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: October 2, 2012
    Assignee: DME Company LLC
    Inventors: James Oliver Adas, Trevor Pruden, Craig Vincent Kovacic
  • Publication number: 20120231111
    Abstract: A valve pin that accommodates side loading for use in a valve-gated nozzle of a hot runner injection molding system is disclosed. The valve pin is operably coupled at a rearward end to an actuating mechanism and includes a shaft that extends through the system such that a forward end thereof engages with a mold gate of a mold cavity. The valve pin shaft has a region forward of the rearward end thereof that accommodates side loading under operating conditions. The region may be a slidable or rotatable interface configured to provide lateral or angular movement between upstream and downstream portions of the valve pin shaft under side loading conditions or may be configured to provide increased flexibility to the valve pin shaft within the region to permit deflection of the valve pin under side loading conditions.
    Type: Application
    Filed: September 9, 2011
    Publication date: September 13, 2012
    Applicant: MOLD-MASTERS (2007) LIMITED
    Inventor: Bruce Catoen
  • Patent number: 8235705
    Abstract: A sulfur-containing material in a melt state is stored in material hopper 1 heated to a temperature within a preset temperature range of which a lower limit is equal to or above a melting point of sulfur. The stored sulfur-containing material is sucked by pressure generators 2a, 2b and pulled out into cylinders 11a, 11b heated to a temperature within the preset temperature range. The pulled out sulfur-containing material is pushed out from the cylinders under predetermined pressure applied by the pressure generator, and thereafter, the resultant material is injected from injection port 24 into mold 5 having therein a cavity which can be hermetically sealed and the mold being heated to a temperature within the preset temperature range. The injection port of the mold after the sulfur-containing material is fully injected in the cavity is closed. By stopping heating of the mold, the sulfur-containing material injected in the cavity is slowly cooled.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: August 7, 2012
    Assignees: Nippon Oil Corporation, Fuji Concrete Industry Co., Ltd.
    Inventors: Minoru Kurakake, Masaaki Chatani, Yoshifumi Tominaga, Yasunori Yamaguchi
  • Publication number: 20120156323
    Abstract: A hot-runner system is provided with a manifold body including a manifold melt channel, and a melt-flow control structure communicating with the manifold melt channel. The melt-flow control structure is integrally formed with the manifold body.
    Type: Application
    Filed: January 25, 2012
    Publication date: June 21, 2012
    Inventor: Darrin Albert MACLEOD
  • Patent number: 8197247
    Abstract: A mold plate module includes a mold plate and an inserting block. The mold plate includes a first surface, a blind hole defined in the first surface, a through hole defined in a bottom surface of the mold plate in the blind hole, two mold cavities, and two first sub-runners. The two first sub-runners are defined in the first surface, and connect the corresponding mold cavities to the blind hole. The inserting block includes a second surface, a lateral surface, a block through hole defined in the second surface, and at least one second sub-runner defined in the second surface. The at least one second sub-runner communicates with the block through hole and extends toward and terminating at the lateral surface. The inserting block is detachably received in the blind hole and rotatable relative to the mold plate to switchingly couple the at least one second sub-runner with the first sub-runners.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: June 12, 2012
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventor: Hsin-Ho Lee
  • Publication number: 20120107444
    Abstract: A forming die assembly for microcomponents includes a forming die, a plunger, and a punch. The forming die is formed with an outer die, an inner die, a storage portion formed at the inner die, and a punch hole formed at the inner die. The inner die slidably inserted into the outer die forms a part of a cavity between the inner die and the outer die. The storage portion stores a raw material with a metal powder and a binder having plasticity. The punch hole connects the cavity and the storage portion and forms a gate therebetween. The plunger slidably inserted into the storage portion fills the raw material stored in the storage portion into the cavity through the punch hole. The punch is slidably inserted into the plunger, and it closes the gate and compresses the raw material in the cavity.
    Type: Application
    Filed: October 24, 2011
    Publication date: May 3, 2012
    Inventors: Narutoshi MURASUGI, Kazunori MAEKAWA, Zenzo ISHIJIMA
  • Publication number: 20120107445
    Abstract: A forming die assembly for microcomponents includes a forming die, a plunger, and a punch. The forming die is formed with a cavity, a storage portion for storing a raw material with a metal powder and a binder having plasticity, and a punch hole that connects the cavity and the storage portion so as to form a gate therebetween. The plunger is formed so as to be slidably inserted into the storage portion and to fill the raw material stored in the storage portion into the cavity through the punch hole. The punch is slidably inserted into the plunger in the sliding direction of the plunger and opens and closes the gate by reciprocatory sliding. The punch closes the gate and compresses the raw material in the cavity into a green compact by sliding in the direction of the cavity.
    Type: Application
    Filed: October 24, 2011
    Publication date: May 3, 2012
    Inventors: Narutoshi MURASUGI, Kazunori MAEKAWA, Zenzo ISHIJIMA
  • Patent number: 8147237
    Abstract: According to an aspect, there is disclosed a hot runner system (100), comprising: a first surface (205) being elastically deformable; a second surface (210) forming, in cooperation with the first surface (205), a melt-leakage gap (215) being located between the first surface (205) and the second surface (210); and an active material (220) being: (i) coupled with the first surface (205), (ii) held normally stationary, (iii) configured to be operatively coupled with a signal source (225), and (iv) configured to elastically deform in response to receiving a signal from the signal source (225), upon elastic deformation of the active material (220), the first surface (205) becomes moved toward the second surface (210) such that a size (235) of the melt-leakage gap (215) becomes controlled.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: April 3, 2012
    Assignee: Husky Injection Molding Systems Ltd.
    Inventors: Edward Joseph Jenko, James Osborne Plumpton
  • Publication number: 20120070531
    Abstract: An injection molding apparatus, such as a hot runner or hot half, includes a manifold having a manifold channel and a nozzle having a nozzle channel. The nozzle is coupled to the manifold, and the manifold channel and the nozzle channel are in communication to define a flow channel. A valve pin bushing has a flow restrictor disposed in the flow channel on an upstream side of the valve pin bushing. A moveable valve pin extends through a bore of the valve pin bushing.
    Type: Application
    Filed: August 22, 2008
    Publication date: March 22, 2012
    Applicant: MOLD-MASTERS (2007) LIMITED
    Inventors: Fabrice Fairy, Vijay Kudchadkar
  • Publication number: 20120045536
    Abstract: An injection molding system comprising an actuator, a mounting plate, a mold and a manifold mounted between the mounting plate and the mold, the mounting plate being removably coupled to the mold, a valve pin comprising a pin stem and a pin connector; the actuator housing being mounted on or within the mounting plate for radial movement upon decoupling of the actuator housing from the mounting plate.
    Type: Application
    Filed: September 19, 2011
    Publication date: February 23, 2012
    Applicant: Synventive Molding Solutions
    Inventors: Vito GALATI, Paul Joseph SAVOIE, Alberti R. BERNIER
  • Patent number: 8087925
    Abstract: A device for forming headrest in a foaming die, which includes a lid engagement mechanism operable to keep a lid member engaged in an injection nozzle placed in the foaming die, thereby preventing leakage of liquid foaming agent from the injection nozzle. Further, the device includes a lid disengagement mechanism operable to disengage the lid member from the injection nozzle and an injection gun movable vertically. The lid disengagement mechanism includes a pressure element provided at the injection gun. Upon downward movement of the injection gun, the pressure element acts on the lid member, so that the lid member is disengaged from the injection nozzle and the injection gun is then engaged with the injection nozzle, thereby allowing liquid foaming agent to be injected into a trim cover assembly placed in the foaming die.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: January 3, 2012
    Assignee: Tachi-S Co., Ltd.
    Inventors: Kazuo Katsuta, Tsuyoshi Tabata
  • Publication number: 20110304062
    Abstract: A chip package structure including a carrier, a chip and a molding compound is provided. The chip is disposed on the carrier. The molding compound encapsulates a portion of the carrier and the chip. The top surface of the molding compound has a pin one dot and a pin gate contact. The pin one dot is located at a first corner on the top surface. The pin gate contact is located at a second corner except the first corner. The invention further provides a chip package mold chase and a chip package process using to form the chip package structure.
    Type: Application
    Filed: September 16, 2010
    Publication date: December 15, 2011
    Inventors: Chih-Hung Hsu, Huan-Wen Chen, Shih-Chieh Chiu, Ying-Shih Lin
  • Publication number: 20110304075
    Abstract: Breakable mechanical connections connect valve pins to an actuated valve pin plate of an injection molding apparatus. The valve pin plate can move the valve pins between opened positions and closed positions of associated mold gates. Each breakable mechanical connection can be independently or singularly destroyed or broken to free a respective valve pin from the valve pin plate.
    Type: Application
    Filed: July 30, 2009
    Publication date: December 15, 2011
    Applicant: MOLD-MASTERS (2007) LIMITED
    Inventors: Bruce Catoen, Murray Feick, Valery Ten
  • Patent number: 8033819
    Abstract: A mold includes a gate communicating with the entire perimeter of a cavity serving as a space configured to form a molded article. A self-curable molding material with flowability is fed into the perimeter of the cavity through the gate; hence, the mold has a small number of dead ends compared with the case where, for example, the molding material is fed into the cavity through a part of the cavity, preventing the formation of bubbles left in the cavity. The arrangement of a gate and a vent each making an acute angle results in the spontaneous separation of the molded article in the cavity from solidified material portions in the gate and the vent due to shrinkage on curing.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: October 11, 2011
    Assignee: NGK Insulators, Ltd.
    Inventors: Tsuneaki Ohashi, Masakatsu Inoue, Toshiichi Ikami, Keiichiro Watanabe, Kunihiko Yoshioka, Kazuhi Matsumoto
  • Publication number: 20110229597
    Abstract: A check valve (36, 136) for a screw (24) is provided. The check valve (36, 136) includes a retainer tip (54, 154), operable to be attached to a distal end of a screw shaft (52, 152), the retainer tip (54, 154) defining at least one melt channel (30). A first ring (60) is coaxially mounted to and rotationally-coupled with the retainer tip (54, 154). A second ring (66) is coaxially and slidably mounted to the retainer tip (54, 154), and is operable to rotate relative to the retainer tip (54, 154). The second ring (66) is operable to reversibly move between an open position which permits melt to flow through the check valve (36, 136) and a closed position which prevents backflow of the melt.
    Type: Application
    Filed: November 23, 2009
    Publication date: September 22, 2011
    Applicant: Husky Injection Molding Systems Ltd.
    Inventors: Maciej Brelski, Christophe Halter
  • Publication number: 20110171341
    Abstract: A plastic injection mold for molding a plastic article includes an upper insert and a lower insert. The upper insert and the lower insert match with each other to define an annular mold cavity therebetween. An annular gate communicates with the mold cavity for allowing molten plastic material to flow into the mold cavity to mold the article. An annular runner is connected with the annular gate for injecting molten plastic material to the annular gate. Molten plastic material will evenly flow into the mold cavity of the plastic injection mold through the annular gate to mold the plastic article, which prevents the plastic article from being disfigured, decreasing the defective products and improving the product quality.
    Type: Application
    Filed: January 9, 2010
    Publication date: July 14, 2011
    Inventors: Peng He, Xiaoping Wu, Shih-Hsiung Ho
  • Patent number: 7967590
    Abstract: An injection unit for an injection molding machine includes a screw cylinder, a plasticizing screw which can be driven therein axially and rotatably, the drive unit of which has an electric drive motor, a spindle drive coupled to the screw for the axial movement of the screw, and a rotary drive arranged coaxially with the spindle drive and allowing an axial displacement of the screw for the rotational movement of the screw. A differential gearing, is arranged between the drive motor, on the one hand, and spindle drive and rotary drive, on the other hand, with a differential cage, two driven gears and at least one compensating gear in between.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: June 28, 2011
    Assignee: Sumitomo (SHI) Demag Plastics Machinery GmbH
    Inventors: Otto Grunitz, Simon Schulz
  • Patent number: 7963762
    Abstract: An injection molding apparatus is disclosed having an actuated part that is movable in forward and rearward directions with a coupling part attached thereto having a spring coupling and a magnetic coupling. A valve pin for opening and closing a mold gate is coupled to the coupling part to be movable with the actuated part. When the actuated part is moved and the valve pin experiences a stopping force, either a spring of the spring coupling is positioned for dampening the stopping force encountered by the valve pin or the magnetic coupling, which is magnetically coupled to the actuated part and/or the valve pin, decouples from the actuated part or the valve pin to limit or prevent continued movement of the valve pin with the actuated part.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: June 21, 2011
    Assignee: Mold-Masters (2007) Limited
    Inventors: Payman Tabassi, Ryan Smith
  • Patent number: 7964825
    Abstract: An apparatus and methods for attaching electrical leads (22, 24) to a heating layer (16) of a heater are provided. An attachment material (50) is thermally sprayed over cords (32) of the electrical leads (22, 24), which are in contact with the heating layer (16) over a contact area (20). The attachment material (50) and the heating layer 16 are further thermally sprayed with a layer (52), which is an isolating material. The thermal sprayed connection between the electrical leads (22, 24) and the heating layer (16) thus provides more intimate contact and an improved electrical connection.
    Type: Grant
    Filed: November 24, 2004
    Date of Patent: June 21, 2011
    Assignee: Watlow Electric Manufacturing Company
    Inventors: Elias Russegger, Reinhardt W. Lehnert
  • Publication number: 20110079937
    Abstract: An apparatus for injection molding includes at least one mold part having at least one surface. The mold part includes at least one mold part having at least one substantially central, sloping, non-linear surface, the at least one mold part including at least one shaped portion. The mold part further includes at least one substantially closed cavity region disposed within the at least one substantially central, sloping, non-linear surface. The mold part further includes at least one gate disposed on a base portion of the mold part for providing fluid communication to the at least one cavity region, the base portion having a plurality of recesses/depressions extending longitudinally along the length of the mold part. Additionally, at least one flow restrictor may be positioned on the mold part for initially directing flow of injected fluid to the at least one shaped portion.
    Type: Application
    Filed: October 6, 2009
    Publication date: April 7, 2011
    Inventor: Paul Scirica
  • Patent number: 7909600
    Abstract: A die and mold for manufacturing a mold product is provided. The die and mold includes a body having a cavity that has a shape corresponding to the mold product. The body includes an upper body plate, and a lower body plate facing the upper body plate and combined with the upper body plate. The die and mold also includes a gate. The gate includes an upper gate plate, a plurality of recesses formed on a lower surface of the upper gate plate, and a lower gate plate facing the upper gate plate. A plurality of protrusions is formed on an upper surface of the lower gate plate in a location corresponding to a location in which the plurality of recesses is formed. The gate also includes a resin injection portion through which a resin is injected into the cavity.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: March 22, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jin-Gwan Kim, Tae-Seok Kim
  • Patent number: 7862330
    Abstract: A food patty molding machine has a reciprocating mold plate. A moldable food product is pumped through a fill passage into cavities of the mold plate when the mold plate is in its fill position. A fill plate, interposed in the fill passage immediately adjacent the mold plate, has a multiplicity of fill orifices distributed in a predetermined pattern throughout an area aligned with the mold cavity when the mold plate is in its fill position. The fill orifices define paths through the fill plate, wherein the paths each have an inlet portion that is perpendicular to a fill side face of the mold plate that is connected to an outlet portion that is obliquely angled to a fill side face of the mold plate. A seal-off stripper plate is interposed in the fill passage immediately adjacent the face of the fill plate opposite the mold plate. The stripper plate is movable along a path transverse to the mold plate path between a fill location and a discharge location.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: January 4, 2011
    Assignee: Formax, Inc.
    Inventors: David Hansen, Scott A. Lindee