With Means To Lock Mold In Closed Position Patents (Class 425/595)
  • Patent number: 10674856
    Abstract: Coffee makers with features for rapid and/or multiple extraction processes, and associated systems and methods, are shown. A representative method for brewing coffee includes placing ground coffee on a filter element of a brew chamber, directing heated water into the brew chamber and in contact with the ground coffee and, during a first phase, brewing coffee in the brew chamber without subjecting the coffee to a pressure differential of at least 150 torr between the brew chamber and a coffee chamber to which the brew chamber is coupled, the coffee chamber having a capacity of 200 mL or more. The representative method further includes, during a second phase, extracting the coffee from the brew chamber through the filter element and into the coffee chamber via a pressure differential of at least 150 torr between the brew chamber and the coffee chamber.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: June 9, 2020
    Assignee: Voga Coffee, Inc.
    Inventors: Joshua Lewis Avins, Eli Salomon
  • Patent number: 10357929
    Abstract: A device and to a method for adjusting the height of a mold of a tire curing press, and to a tire curing press. The mold has at least two mold parts that can be positioned relative to each other. At least two double-acting fluid cylinders and at least one guide element are used. Positions are secured by at least one locking device.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: July 23, 2019
    Assignee: HARBURG-FREUDENBERGER MASCHINENBAU GMBH
    Inventor: Stefan Bahlke
  • Patent number: 9724863
    Abstract: An injection molding machine is provided that includes a clamping force sensor that detects a clamping force of a mold, and a clamping force monitoring unit that monitors a detected value of the clamping force sensor and calculates a first mold open distance and/or a second mold open distance. The first mold open distance is calculated based on the difference between the maximum value of the detected values obtained during an injection process and a pressure holding process and the detected value obtained at the start of the injection process. The second mold open distance that is calculated based on the difference between the detected value obtained at the end of the pressure holding process and the detected value obtained at the start of the injection process.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: August 8, 2017
    Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.
    Inventors: Ryuichi Tokuno, Suguru Nishimura
  • Patent number: 9266265
    Abstract: An in-mold shutter for embedding in an injection mold is described herein. The in-mold shutter includes a shutter actuator that is configured to selectively engage a first mold shoe of the injection mold with a platen of a mold clamping assembly to hold the first mold shoe in an extended position, along a mold-stroke axis, during a step of molding a first molded article in the injection mold. Also described herein is a molded article transfer device for use with the injection mold. The molded article transfer device includes a shuttle that is slidably arranged, in use, within the injection mold. The shuttle defines a first aperture, at least in part, that alternately accommodates: a first mold stack arranged therein; and (ii) a first molded article received therein with opening of the first mold stack.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: February 23, 2016
    Assignee: HUSKY INJECTION MOLDING SYSTEMS LTD.
    Inventors: Christophe Halter, Pierre Glaesener, François Styga
  • Patent number: 9233498
    Abstract: A closing unit of an injection molding machine includes a moveable mold mounting plate and a fixed mold mounting plate, a hydraulic pressure mechanism for building up a closing pressure, at least one column provided with an external profile, and at least one two-part nut which is provided with an internal profile and the half members of which are coupled in motionally opposite relationship. The at least one column in the closed condition of the two-part nut is lockable by a positively locking relationship between the internal profile and the external profile relative to the moveable mold mounting plate or relative to the pressure mechanism. There is also provided an electric drive for opening and closing the two-part nut.
    Type: Grant
    Filed: August 27, 2013
    Date of Patent: January 12, 2016
    Assignee: ENGEL AUSTRIA GMBH
    Inventors: Ing. Franz Dirneder, Johannes Mayr
  • Patent number: 9205584
    Abstract: A closing unit for an injection molding machine includes a substantially C-shaped machine frame, to the first leg of which is mounted a stationary mold mounting plate and to the second leg of which is mounted a closing mechanism for driving a moveable mold mounting plate. The free ends of the legs of the machine frame are deformed under the influence of the closing force occurring during the closing operation. The stationary mold mounting plate is supported at or near its lower edge by a support element on the machine frame against the closing force, and is fixedly connected above the lower edge to the first leg. The support element has a flexural beam extending transversely relative to the longitudinal axis of the machine, and a compression bar extending in the direction of the longitudinal axis of the machine.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: December 8, 2015
    Assignee: ENGEL AUSTRIA GMBH
    Inventor: Gerhard Wimbauer
  • Patent number: 9186821
    Abstract: A positioning device aligns first and second mold segments moving from an opened position to a closed position. The device includes a female member for connecting to one of the mold segments and for receiving a male member connected to the other of the mold segments. A bearing mechanism is coupled to the female member for receiving the male member and reducing friction between the male member and the female member. One of the female member and the bearing mechanism includes a post extending transversely to the alignment axis and the other of the female member and the bearing mechanism defines a groove receiving the post as the bearing mechanism moves relative to the female member. The engagement between the groove and the post retains the bearing mechanism in the female member when the first and second mold segments move between the opened and closed positions.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: November 17, 2015
    Assignee: EXTREME COMPONENTS LP
    Inventor: Michael S. Bokich
  • Patent number: 9084867
    Abstract: A method of injection molding a catheter assembly, the method comprising providing a mold having an elongated cavity in the form of an external surface of the catheter assembly, providing a core pin in the longitudinal axis of the catheter assembly inside the cavity in the form of an inner lumen of the catheter assembly, where the core pin has a distal end that is fixed in place and a proximal free end, providing a first and a second molding member where each one of the first and the second molding members has a fixed end and a free end, in a radial direction of the elongated cavity, preparing the mold by arranging the free ends of the two molding members to support the core pin, injecting a liquid catheter material into the mold, letting the liquid material solidify.
    Type: Grant
    Filed: June 25, 2010
    Date of Patent: July 21, 2015
    Assignee: Coloplast A/S
    Inventors: Egon Triel, Johnny Wagner
  • Publication number: 20150125567
    Abstract: In a mold mounting platen for an injection molding machine, at least one of a mold mounting member and a clamping force transmission member constituting the mold mounting platen has a central bearing surface in a central portion thereof and a peripheral bearing surface outside the central bearing surface. The amount of protrusion of the central bearing surface is larger than that of the peripheral bearing surface.
    Type: Application
    Filed: November 5, 2014
    Publication date: May 7, 2015
    Inventor: Naruhiro NISHIMURA
  • Patent number: 8974716
    Abstract: An injection molding machine includes a base and an injection unit mounted to the base, and a first platen for holding a first mold section and a second platen for holding a second mold section. The first and second platens are supported by the base, and are movable along a machine axis between mold-open and mold-closed positions. At least a first tie bar engagement apparatus is associated with a first tie bar and includes a first bore in the first platen for receiving the respective tie bar therethrough at least when the platens are in the mold-closed position; and a first roller mounted to the first platen proximate the first bore. The first roller is rotatable about a first roller axis that is oriented horizontally and perpendicular to the machine axis.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: March 10, 2015
    Assignee: Athena Automation Ltd.
    Inventors: Robert D. Schad, Carsten Link
  • Patent number: 8974224
    Abstract: Method and apparatus for overmolding delicate parts are disclosed. A mold unit for an injection molding apparatus can be provided. The mold unit can include a clamping mechanism and a locking mechanism. The clamping mechanism can be positioned in contact with the delicate part. The position of the clamping mechanism can be selected such that the clamping mechanism does not exert a force that damages the delicate part. The delicate part can vary in size from part to part. Thus, as the overmolding process is repeated, the position that is selected each time for the clamping mechanism can vary depending on the size of a part that is used. The locking mechanism can be configured to lock the clamping mechanism into the position selected for the part.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: March 10, 2015
    Inventor: Craig M. Stanley
  • Patent number: 8967994
    Abstract: A mold clamping device for an injection-molding machine includes a fixed platen, a movable platen, pressure pads for generating a clamping force, and a spindle drive for moving the movable platen. The spindle drive has a non-rotating spindle shaft and a spindle nut which can be rotationally driven by a motor. The spindle shaft has a threaded portion in engagement with a matching thread of the spindle nut. To permit a free relative movement between the spindle drive and the movable platen, a piston-cylinder unit is in operative connection with the spindle drive and has on both sides of the piston pressure medium spaces, which can optionally be hydraulically blocked or connected to one another. In the latter state, the spindle drive is decoupled from the movable platen and freely floating with respect to it.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: March 3, 2015
    Assignee: KraussMaffei Technologies GmbH
    Inventor: Thomas Reinhardt
  • Patent number: 8920156
    Abstract: Support members for rotatable platens of injection molding machines are provided. In some aspects, an injection molding machine includes a guide member and a rotatable platen including a base plate and a turntable supported by and rotatable relative to the base plate about a substantially horizontal axis. The turntable is adapted to support a mold for rotation about the horizontal axis relative to the base plate and the guide member. The injection molding machine also includes a support member coupled to the rotatable platen and engaged with the guide member for movement of the rotatable platen and the support member along the guide member. The turntable is adapted to rotate the mold relative to the support member. In other aspects, a support member for a rotatable platen of an injection molding machine is provided and includes a first arm and a second arm spaced apart from the first arm.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: December 30, 2014
    Assignee: Electroform Company
    Inventor: Wade L. Clark
  • Publication number: 20140363535
    Abstract: A lock assembly for releasably coupling a platen to a tie bar of an injection molding machine includes first and second lock nut segments translatable in a transverse between locked and unlocked positions for respectively engaging and disengaging the tie bar, and a carrier assembly for coupling the lock nut segments to the platen. The carrier assembly provides a slide surface for slidably supporting the lock nut segments during the translation of the lock nut segments between the locked and unlocked positions, and the carrier assembly resiliently supports the slide surface for axial movement of the slide surface with the lock nut segments between an unloaded position in which the lock nut segments are spaced away from the platen by a clearance gap, and a loaded position in which the lock nut segments bear against the platen.
    Type: Application
    Filed: May 14, 2014
    Publication date: December 11, 2014
    Applicant: Athena Automation Ltd.
    Inventors: Robert D. Schad, Carsten Link
  • Patent number: 8899967
    Abstract: A molding apparatus includes a plurality of inter-engaging mold cavity components and a plurality of inter-engaging gate inserts that combine with the plurality of inter-engaging mold cavity components to define an annular mold cavity. The plurality of inter-engaging gate inserts combine to define a plurality of separate arcuate shaped gate segments that each communicate with the annular mold cavity.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: December 2, 2014
    Assignee: Freudenberg-NOK General Partnership
    Inventor: David Chris Vannarsdall
  • Patent number: 8858220
    Abstract: A locking device for columns of presses with two pairs of locking clamps, wherein the locking clamps of one or both the pairs are mechanically connected to each other through at least one mechanism suited to guide in a synchronized way the relative translational motion of the two locking clamps of the same pair, and wherein the guide mechanism is integral with the moving plane in at least one fixed point, thus guaranteeing the symmetry of the motion of the locking clamps with respect to the fixed point.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: October 14, 2014
    Assignee: Italtech SpA
    Inventor: Alessandro Sartori
  • Patent number: 8821144
    Abstract: An alignment interlock for reciprocating tooling that includes a female lock having a central engagement area and a corresponding male lock having a profile shaped to matingly engage with the central engagement area. A plurality of particle rings are preferably formed on an engagement surface of the profile and an engagement ramp having a polished, radiused lead-in is preferably formed at a leading edge of the profile.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: September 2, 2014
    Assignee: Progressive Components International Corporation
    Inventors: Glenn Starkey, Kenneth Rumore
  • Patent number: 8777607
    Abstract: The invention relates to a mold (1) for molding, in particular by injection, that comprises two half-molds (2, 3) each defined by a side surface (21, 31), a front face and a rear face. One at least of said two half-molds is to be associated with means for opening and closing the mold. The two half-molds can be brought into contact at the level of a junction plane (1) when the mold is in the closed position. The mold is characterized in that one half-mold is provided with a locking device (6) that comprises: at least one latch (7) that can be simultaneously housed in a recess (25) in each half-mold (2, 3); and at least one independent system (8) capable of bringing together or separating the latch (7) and the recesses (25, 35) in which the latch (7) is to be received, and including one or more jack(s) (8) including a chamber connected to the half-mold, a piston capable of movement in said chamber, and a rod connected to the piston and to which the latch is attached.
    Type: Grant
    Filed: December 15, 2008
    Date of Patent: July 15, 2014
    Assignee: Compose SAS
    Inventor: Sébastien Godde
  • Patent number: 8709326
    Abstract: An injection molding machine may include a split mold where a gas discharge portion is formed at parting surfaces. Further, the cross-section of a flow passage of the gas discharge portion may be reduced at a predetermined timing after the start of the filling of a molding material. Since the cross-section of the flow passage of the gas discharge portion is reduced after a cavity space starts being filled with a molding material, it may be possible to make the amount of gas, which flows through the gas discharge portion, large until the cross-section of the flow passage of the gas discharge portion is reduced. It may be possible to prevent a foreign material from adhering to the inner peripheral surface of the gas discharge portion.
    Type: Grant
    Filed: June 13, 2011
    Date of Patent: April 29, 2014
    Assignee: Sumitomo Heavy Industries, Ltd.
    Inventor: Ichiro Sakamoto
  • Patent number: 8647100
    Abstract: An injection molding machine includes an injection unit with drive units form the movement of the injection unit and for the injection and after-pressure stroke of the plasticizing screw, a tool clamping plate, a mould closing unit with a drive unit form the mould movement and tool closing force and a drive unit for a workpiece ejector device, wherein at least one drive unit is a hydraulic drive unit with a hydraulic pump, a hydraulic cylinder and control valves to activate the hydraulic cylinder, and wherein the hydraulic fluid is an electrorheological fluid and the control valve for the hydraulic cylinder is an electrorheological valve.
    Type: Grant
    Filed: January 27, 2011
    Date of Patent: February 11, 2014
    Assignee: Sumitomo (Shi) Demag Plastics Machinery GmbH
    Inventor: Otto Grunitz
  • Patent number: 8647108
    Abstract: An adjustable aligning device (300) for large composite molds comprising a first half part and a second half part includes a first member (1) and a second member (2) which are coupled to the first half part and the second half part of the molds respectively. The first member (1) and the second member (2) have mating portions and are capable of moving relative to each other. The adjustable aligning device (300) allows the fine calibration of overbite of the mold, and can reduce the time and skill needed for aligning the molds.
    Type: Grant
    Filed: March 12, 2010
    Date of Patent: February 11, 2014
    Assignee: Suzhou Red Maple Wind Blade Mould Co., Ltd.
    Inventor: Gabriel Mironov
  • Publication number: 20130344192
    Abstract: A mould clamping device for an injection-molding machine includes a fixed platen, a movable platen, pressure pads for generating a clamping force, and a spindle drive for moving the movable platen. The spindle drive has a non-rotating spindle shaft and a spindle nut which can be rotationally driven by a motor. The spindle shaft has a threaded portion in engagement with a matching thread of the spindle nut. To permit a free relative movement between the spindle drive and the movable platen, a piston-cylinder unit is in operative connection with the spindle drive and has on both sides of the piston pressure medium spaces, which can optionally be hydraulically blocked or connected to one another. In the latter state, the spindle drive is decoupled from the movable platen and freely floating with respect to it.
    Type: Application
    Filed: February 3, 2012
    Publication date: December 26, 2013
    Inventor: Thomas Reinhardt
  • Publication number: 20130337104
    Abstract: A molding apparatus includes a plurality of inter-engaging mold cavity components and a plurality of inter-engaging gate inserts that combine with the plurality of inter-engaging mold cavity components to define an annular mold cavity. The plurality of inter-engaging gate inserts combine to define a plurality of separate arcuate shaped gate segments that each communicate with the annular mold cavity.
    Type: Application
    Filed: June 14, 2012
    Publication date: December 19, 2013
    Applicant: Freudenberg-NOK General Partnership
    Inventor: David Chris Vannarsdall
  • Patent number: 8602769
    Abstract: A mold assembly includes a first mold, a second mold, a first locking member, a second locking member and a pushing member. The first locking member is fixed in the first mold. The first locking member includes an engaging slot. The second locking member is pivotably mounted in the second mold. The second locking member includes an engaging portion. The engaging portion is engaged in the engaging slot to latch the first mold to the second mold, and the pushing member is adapted to push the second locking member to disengage the engaging portion from the engaging slot.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: December 10, 2013
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventors: Chun-Wei Tseng, Han-Wei Jiang, Jun-Ping Liu, Hao-Dong Xiao
  • Publication number: 20130307190
    Abstract: Provided is a mold clamping device that saves a space, has a light machine weight and requires low manufacturing cost in an injection molding machine, a diecast machine, and the like. The mold clamping device includes: a stationary platen having a stationary mold; a movable platen having a movable mold; a plurality of tie bars supported by the stationary platen; end blocks provided in the same number as the tie bars, which is penetrated by the tie bars and coupled with the movable platen with toggle link mechanisms; split nuts supported by the end blocks and capable of being engaged with and disengaged from the tie bars; a mold opening-closing drive unit for opening and closing the movable platen, the end blocks, and the toggle link mechanisms; and a cross head for operating the toggle link mechanisms to generate a mold clamping force.
    Type: Application
    Filed: December 16, 2011
    Publication date: November 21, 2013
    Applicant: UBE MACHINERY CORPORATION, LTD.
    Inventor: Koji Nagatomi
  • Patent number: 8556614
    Abstract: A mold press for use with an injection mold, the mold press including a first press section connectable to a first portion of the injection mold, a second press section connectable to a second portion of the injection mold and a locking arm system. The locking arm system being configured to secure the first press section to the second press section. The locking arm system including at least one structural member coupled with the first press section, and at least one swing arm pivotally connected to the second press section. The swing arm encounters the structural member and interacts with the structural member to draw the first and second press sections toward each other causing the first and second portions of the mold to become proximate each other.
    Type: Grant
    Filed: March 27, 2012
    Date of Patent: October 15, 2013
    Inventors: Jeff M. Counterman, Derek E. Craig
  • Publication number: 20130243902
    Abstract: A locking device for columns of presses with two pairs of locking clamps, wherein the locking clamps of one or both the pairs are mechanically connected to each other through at least one mechanism suited to guide in a synchronized way the relative translational motion of the two locking clamps of the same pair, and wherein the guide mechanism is integral with the moving plane in at least one fixed point, thus guaranteeing the symmetry of the motion of the locking clamps) with respect to the fixed point.
    Type: Application
    Filed: October 6, 2011
    Publication date: September 19, 2013
    Applicant: ITALTECH SPA
    Inventor: Alessandro Sartori
  • Publication number: 20130183398
    Abstract: A mold for forming a temporary prosthesis has at least two mold members at least partially separable from each other. The at least two mold members cooperatively define a generally enclosed interior cavity for forming the temporary prosthesis. The mold has a securement structure mounted on the at least two mold members for securing the at least two mold members to each other during the forming of the temporary prosthesis. The securement structure is removable from the at least two mold members by hand and without the use of a tool.
    Type: Application
    Filed: March 7, 2013
    Publication date: July 18, 2013
    Applicant: Zimmer Orthopaedic Surgical Products, Inc.
    Inventor: Zimmer Orthopaedic Surgical Products, Inc.
  • Publication number: 20130129858
    Abstract: Breakage of the actuator moving the movable platen in the clamping device of an injection moulder is prevented. The clamping device includes a movable platen shifting device increasing and decreasing a horizontal distance between the movable platen (3) and the fixed platen (2). It includes an actuator (41), a clevis pin connecting the actuator (41) and the movable platen (3), a clevis pin holding part holding a central axis of the clevis pin perpendicular to a moving direction of the movable platen (3), and a clevis pin connecting part that connects the actuator (41) and the clevis in. The clevis pin connecting part is a supporting structure rotating with the clevis pin. The clevis pin connecting part is supported by the movable platen (3). The clevis pin, the clevis pin connecting part, and the front end of the actuator are aligned in a straight line.
    Type: Application
    Filed: October 26, 2011
    Publication date: May 23, 2013
    Applicant: MITSUBISHI KEY INDUSTRIES PLASTIC TECHNOLOGY CO., LTD
    Inventors: Saburo Fujita, Naoki Kato
  • Patent number: 8438973
    Abstract: Locking device for columns (A) of presses with at least one stationary platen and at least one moveable platen (E), comprising, in a containment body (D), a wedge flange (G) firmly fastened to the back of the tightening wedges (B) and able to translate axially, and where after the tightening of said wedges (B) on said column (A), the group formed by the piston (C) acting on said wedges (B), said wedge flange (G), said wedges (B) and said column (A) translates with a maximum stroke (m) limited by a starting or resting position of the wedge flange (G) to an end stop position, determined by the pressing of said wedge flange (G) on the rear plate (D2) of said containment body (D).
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: May 14, 2013
    Assignee: Italtech S.p.A.
    Inventor: Alessandro Sartori
  • Publication number: 20130115327
    Abstract: There is provided a retaining member (130) for use in a mold (100), the retaining member (130) for distributing load applied thereto in a first direction. The retaining member (130) comprises a first contact (204) for abutting in use a first mold element of the mold (100); a second contact (206) for abutting in use a second mold element of the mold (100); a compensating member (207) intermediate the first contact (204) and the second contact (206); an interface (222, 224) for maintaining a floating arrangement the retaining member (130) to a third element of the mold (100); the compensating member (207) providing for spring-like effect such that the retaining member (130) provides substantially equal load distribution throughout substantially its whole longitudinal extent, when in use.
    Type: Application
    Filed: March 29, 2011
    Publication date: May 9, 2013
    Applicant: Husky Injection Molding Systems Ltd.
    Inventor: Adrian Peter Looije
  • Patent number: 8435021
    Abstract: A mold clamping device includes a first fixed member to which a stationary mold is to be attached; a first movable member to which a movable mold is to be attached; a second movable member configured to move together with the first movable member; a second fixed member provided between the first movable member and the second movable member; a mold clamping force generating mechanism configured to generate a mold clamping force due to an electromagnetic force between the second movable member and the second fixed member; and a mold clamping force amplifying mechanism configured to amplify the mold clamping force generated by the mold clamping force generating mechanism.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: May 7, 2013
    Assignee: Sumitomo Heavy Industries, Ltd.
    Inventors: Tsutomu Miyatake, Norihito Okada, Shinji Terada
  • Patent number: 8425221
    Abstract: A mold assembly having an ejection mechanism is disclosed and has a female mold, a male mold, a lower fixing plate, an upper ejection plate, at least one upper ejection pin, a lower ejection plate, at least one lower ejection pin and at least one process control mechanism. The female and male molds are closed to commonly define a mold cavity. The lower fixing plate and the male mold commonly define a receiving space therebetween to receive the upper ejection plate and the lower ejection plate which can be shifted upward and downward therein. The upper and lower ejection pins are mounted on the upper and lower ejection plates, respectively. The process control mechanism controls the upper and lower ejection pins to eject a molded product in two steps, so that the molded product can be automatically ejected for enhancing the manufacture efficiency of the mold assembly.
    Type: Grant
    Filed: December 3, 2010
    Date of Patent: April 23, 2013
    Assignee: Cheng Uei Precision Industry Co., Ltd.
    Inventors: Xian-yun Wang, Xiao-ping Wu, Kun-hsueh Chiang
  • Patent number: 8419418
    Abstract: An injection mould for injection moulding an article having a base and a sidewall, the injection mould comprising: first and second mould parts which are adapted to be connected together in a closed configuration so as to define a mould cavity there between, the mould cavity having a base portion and a sidewall portion, an injector for injecting into the mould cavity molten material to be moulded into the article, at least one portion of one of the first and second mould parts being movable when the first and second mould parts are in the closed configuration so as to vary the volume of the mould cavity, an actuator for selectively moving the at least one portion of one of the first and second mould parts in first and second directions so as to increase and reduce, respectively, the volume of the mould cavity.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: April 16, 2013
    Inventor: Peter Reginald Clark
  • Patent number: 8408890
    Abstract: [PROBLEM]To provide a method of molding a composite molded article enabling compression molding without requiring a large sized injection molding machine and a mold system used for that. [MEANS FOR SOLUTION]A method of molding a composite molded article using a first mold member 13 to mold a primary molded article 29 by primary molding, switching a movable mold member holding the primary molded article 29 with a movable mold member 14 positioned with a second mold member 15, then using a second mold member 15 in which the primary molded article 29 is inserted to mold a secondary molded article 30 by secondary molding, wherein the primary molding and the secondary molding are executed by non-continuous different steps at points of time different from each other.
    Type: Grant
    Filed: August 9, 2006
    Date of Patent: April 2, 2013
    Assignees: Kabushiki Kaisha Meikiseisakusho, Teijinkasei Kabushiki Kaisha
    Inventors: Kenji Fukumoto, Shizuo Jinno, Atsushi Tsukamoto, Toshiaki Hotaka, Fumitaka Kondo, Yasuhiro Sugihara, Kazuma Hisaki
  • Patent number: 8388338
    Abstract: An injection molding system of plastic material, includes a press having first and a second pressure plates, suitable for closing between them a mold, by applying a closing force, and a distribution and injection assembly suitable for distributing and injecting a fluid plastic material into the mold and in turn comprising an intermediate hot distribution plate interposed between a bottom plate and a nozzle-bearing plate, provided for cooperating into contact and in sliding relationship, along a respective sliding and contact surface with the end of one or more injection nozzles fixed on the nozzle-bearing plate, in order to distribute the fluid plastic material to be injected into the mold, wherein the distribution and injection assembly is arranged adjacent to and along a side of the mold, not associated with the first and the second pressure plates so as not to be subject to the closing force of the mold.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: March 5, 2013
    Assignee: Thermoplay S.p.A.
    Inventor: Roberto Enriette
  • Patent number: 8366438
    Abstract: In a mold clamping device including a fixed platen, a movable platen, a plurality of tie bars, and mold clamping half nuts, a pair of additional half members which is restricted in the axial direction of the tie bar and moves in an opening/closing direction of the half nuts relative to the mold clamping half nuts is further provided, and when the mold clamping half nuts are closed and mated with the screw or the ring groove of the tie bar, the additional half members are closed to hold the tie bar so that play at mated parts is removed or cancelled by fixation.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: February 5, 2013
    Assignee: Mitsubishi Heavy Industries Plastic Technology Co., Ltd.
    Inventors: Naoki Kato, Toshihiko Kariya
  • Patent number: 8348657
    Abstract: Embodiments of the present invention are directed to a tonnage regulating structure and a mold incorporating same. For example, a tonnage regulating structure (302, 1002, 1202) for use in a mold (502) of a molding machine, the mold (502) being associated with an opening clearance (520) between mold faces in a mold closed and clamped configuration, is provided. The tonnage regulating structure (302) comprises a body (304, 1040, 1240) having a first height (306) in a resting configuration, the first height (306) selected to be larger than the opening clearance (520) between the mold faces in a mold closed and clamped configuration; the body (304, 1040, 1240) including a compensating structure (308), the compensating structure (308) for regulating, in use under applied clamp tonnage, the body (304, 1040, 1240) to a second height (320), the second height (320) being smaller than the first height (306).
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: January 8, 2013
    Assignee: Husky Injection Molding Systems Ltd.
    Inventors: Arnold Mai, Jean-Christophe Witz, Laurent Christel Sigler, David Dubuis, Sven Kmoch
  • Patent number: 8337196
    Abstract: A locking device, releasably securing a tie bar to a platen, includes a housing with a bearing surface affixed to the platen coaxial with the tie bar, and a rotatable lock nut received in the housing and comprising: an inner bore with radial elements engaging the tie bar to transfer an axial clamp load to the lock nut, the elements defining an engagement portion along a lock nut first axial extent; an outer surface with at least a first step face abutting the bearing surface to transfer the axial damp load to the platen, the step face having a first radially outer extent; and a narrowing section having a second axial extent from a first position having a first diameter proximate the step face to a second position having a second lesser diameter spaced axially towards a second platen, the first diameter being less than the first radially outer extent.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: December 25, 2012
    Assignee: Athena Automation Ltd.
    Inventors: Robert D. Schad, Carsten Link
  • Publication number: 20120288584
    Abstract: In a toggle type mold clamping device including a plurality of link units, a coupling portion of a first link coupled with a toggle driving link is provided on an outer side of an area between a coupling portion of the toggle driving link coupled with a crosshead and a center line of the first link. Furthermore, the first link has a structure in which two members arranged in parallel are coupled and integrated with each other and a space through which the toggle driving link passes is formed between the two coupled members.
    Type: Application
    Filed: April 9, 2012
    Publication date: November 15, 2012
    Applicant: FANUC CORPORATION
    Inventors: Masatoshi SENGA, Koichi NISHIMURA
  • Publication number: 20120261845
    Abstract: Disclosed is an apparatus for manufacturing a resin molded article having a hollow section inside for an optical element, by injecting a molten resin into a cavity. The apparatus has: a pressurized fluid injection device, which forms the hollow section by injecting a pressurized fluid into the molten resin injected into the cavity; and a bias device which biases a movable part in the same direction as a mold clamping direction. The movable part is moved with respect to a first mold or a second mold, in an opposite direction to the mold clamping direction against the bias force applied by the bias device, with a pressure increased in the mold by the injecting the pressurized fluid into the cavity. The moving is moved, in the same direction as the mold clamping direction, by discharge of the pressurized fluid.
    Type: Application
    Filed: August 27, 2010
    Publication date: October 18, 2012
    Applicant: KONICA MINOLTA OPTO, INC.
    Inventors: Shinichiro Hara, Mitsuhiro Maruhata, Toshiyuki Majima
  • Publication number: 20120258193
    Abstract: Provided is a parallelism control apparatus of a movable platen of an electric injection molding machine, to which a new arrangement type using a wedge to control the parallelism of a movable platen is applied to reduce the size of the parallelism control apparatus, ensure an installation space, and solve a difficulty during installation, which ensures rigidity of the movable platen in directions of forward and rearward movements, and enables parallelism adjustment and firm position fixing by controlling a vertical amount, a horizontal amount, and a combination of vertical and horizontal amounts even in a narrow space, thereby further enhancing precision and quality reliability of molded products.
    Type: Application
    Filed: August 2, 2011
    Publication date: October 11, 2012
    Inventors: Jin Won JUNG, Kyong Ho Park, Sung Chul Yoo
  • Publication number: 20120228799
    Abstract: Method and apparatus for overmolding delicate parts are disclosed. A mold unit for an injection molding apparatus can be provided. The mold unit can include a clamping mechanism and a locking mechanism. The clamping mechanism can be positioned in contact with the delicate part. The position of the clamping mechanism can be selected such that the clamping mechanism does not exert a force that damages the delicate part. The delicate part can vary in size from part to part. Thus, as the overmolding process is repeated, the position that is selected each time for the clamping mechanism can vary depending on the size of a part that is used. The locking mechanism can be configured to lock the clamping mechanism into the position selected for the part.
    Type: Application
    Filed: March 8, 2011
    Publication date: September 13, 2012
    Applicant: APPLE INC.
    Inventor: Craig M. Stanley
  • Patent number: 8221670
    Abstract: A method for injection molding comprises pre-positioning a clamp piston within a cylinder housing to a datum position axially intermediate a clamping position and an unclamped position, the clamp piston affixed to a tie bar, the clamp piston and cylinder housing cooperating to provide a clamp chamber and an unclamp chamber in a clamp cylinder housing on axially opposite sides of the clamp piston for urging the clamp piston towards the clamping and unclamped positions, respectively, when pressurized. Pre-positioning the clamp piston can include leaving a positioning gap between portions of a mold before releasably locking a tie bar to one of the moving or stationary platens, and then advancing the moving platen to substantially close the positioning gap after the releasable locking has been completed.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: July 17, 2012
    Assignee: Athena Automation Ltd.
    Inventors: Robert D. Schad, Carsten Link
  • Publication number: 20120177776
    Abstract: The pin mounting hole used to insert and mount the pin member having a pin-like shape is formed on, among the inner wall surfaces of the cavity, the second side-wall surface that is an inner wall surface other than the inner wall surfaces perpendicular to the mold-removal direction of the injection-molded article. On the second side-wall surface, the protruding portion protruding from the second side-wall surface is formed in the surface area located on the opposite side in the mold-removal direction with respect to the pin mounting hole.
    Type: Application
    Filed: October 25, 2011
    Publication date: July 12, 2012
    Applicant: Japan Aviation Electronics Industry, Ltd.
    Inventors: Yohei KIMITA, Masafumi Okada, Hiroshi Akimoto
  • Publication number: 20120135102
    Abstract: Disclosed herein is, amongst other things, a molding apparatus that includes a collet (116, 316) for use in a first stack portion (110, 310) of a mold stack (106, 306). The mold stack (106, 306) is associated, in use, with an injection mold (100). The collet (116, 316) is structured to define a plurality of molding fingers (140, 340) that are resiliently deflectable, in use, between a neutral configuration and a deflected configuration, the plurality of molding fingers (140, 340) being cooperable to define an encapsulated portion (145) of a molding cavity (101) when arranged in abutment. Furthermore, each of the plurality of molding fingers (140, 340) defines a cam follower (142, 342) that is cooperable, in use, with a bearing (170) with which to link the cam follower (142, 342) with a cam (150, 250) for the exercising thereof between the neutral configuration and the deflected configuration.
    Type: Application
    Filed: June 16, 2010
    Publication date: May 31, 2012
    Applicant: HUSKY INJECTION MOLDING SYSTEMS LTD.
    Inventor: Pierre Glaesener
  • Patent number: 8137093
    Abstract: A clamp includes (a) a first engager that engages with engagement parts formed at ends of the tiebars at the moving platen side after moving the moving platen in the fixed platen direction to close a die or mold, in the tiebar insertion holes of the moving platen, (b) a second engager that engages with engagement parts formed at ends of the tiebars at the fixed platen sides detachably at ends of clamping pistons using a detachable engager, (c) a pushing device that cooperates with the tiebars and pushes the moving platen after die or mold closing against the fixed platen in the tiebar insertion holes of the fixed platen, and (d) a tiebar inserting and extracting device coupled with ends of the tiebars at the fixed platen sides at a side of the fixed platen opposite to the die or mold mounting surface.
    Type: Grant
    Filed: June 7, 2007
    Date of Patent: March 20, 2012
    Assignees: Ube Machinery Corporation, Ltd., Ahresty Corporation
    Inventors: Hiroaki Furuya, Junji Manabe, Fumiaki Matsubara, Shinji Sannakanishi
  • Patent number: 8109757
    Abstract: A system for molding elastomeric figures includes a dispenser having first and second reservoirs containing co-reactive fluids. A mold is affixed to the dispenser and has a cavity in fluid communication with the reservoirs. A mixer is disposed between the reservoirs and cavity. A plunger forces the fluids from the reservoirs and through the mixer, where the fluids are homogeneously combined, and into the cavity. The combined fluids congeal within the cavity to form an elastomeric figure.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: February 7, 2012
    Inventor: John Constantine Fusi, III
  • Patent number: 8057216
    Abstract: Disclosed herein is an ejector for an injection molding machine used to extract a molded product formed inside a die, the ejector including: a first ejector plate which is movably installed in a moving plate for fixing the die; a second ejector plate which is separably connected to the first ejector plate; and an ejector pin which is installed in at least one of the first and second ejector plates so as to push outward the molded product.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: November 15, 2011
    Assignee: LS Mtron Ltd.
    Inventors: Byeong-Geun Jang, Sung-Wook Jung, Sung-Chul Yoo, Jong-Won Woo
  • Publication number: 20110268834
    Abstract: An injection molding machine comprises a first platen and a second platen, the first platen movable relative to the second platen in an axial direction between open and closed positions, and a plurality of tie bars extending generally between the first and second platens for coupling together the first and second platens. At least a first locking device is mounted to the first platen and associated with a first one of the tie bars for selectively locking and unlocking the moving platen relative to the tie bar. At least a first clamping mechanism is mounted to the second platen and associated with the first tie bar, the clamping mechanism including clamp and unclamp chambers on either side of a piston for moving the piston towards clamp and unclamp positions to exert a clamping force and a mold break force, respectively.
    Type: Application
    Filed: April 1, 2011
    Publication date: November 3, 2011
    Inventors: Robert D. Schad, Franz Strohmaier