Article Ejector Or Stripper Control Patents (Class 425/139)
  • Patent number: 7826928
    Abstract: A control device for controlling the movement of a machine determines a base position set value according to a given base track in space. By limitation of a base element of a machine therewith, the above is hence positionally moved along a base track. The control device further determines a corresponding current supplementary end position in space using the base position set value. The control device also determines a supplementary position set value from a given fixed supplementary start position in space and the current supplementary end position. By limitation of a supplementary element of the machine thereto, the above is thus displaced along an current supplementary track from the supplementary start position, to the current supplementary end position.
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: November 2, 2010
    Assignee: Siemens Aktiengesellschaft
    Inventor: Jürgen Olomski
  • Patent number: 7785097
    Abstract: A mold assembly for an automated dry-cast block machine including a mold cavity formed by at least one frame element having a plurality of guide holes therein, a moveable liner plate positioned within the mold cavity and having a plurality of non-driven guide posts configured to align with and slide within the plurality of guide holes within the at least one frame element, and a drive system coupled to the moveable line plate independent of the guide posts and configured to drive the moveable liner toward and away from an interior of the mold cavity.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: August 31, 2010
    Assignee: Ness Inventions, Inc.
    Inventors: John T. Ness, Jeffrey A. Ness
  • Publication number: 20100187730
    Abstract: An injection blow molding machine having an injection molding rotor including a plurality of injection molding units with individual split mold cavities for preforms, a transfer rotor, a blow molding rotor including a plurality of blow molds, and a removal rotor, essentially within a shared operating plane, and split mobile neck molding parts which fit into each blow mold and each mold cavity and which are transferred with a preform and removed with a stretch-blown bottle from the blow mold. In the process, each preform is transferred in the neck molding part into the blow mold.
    Type: Application
    Filed: August 9, 2007
    Publication date: July 29, 2010
    Applicant: Krones AG
    Inventor: Martin Hintermeier
  • Publication number: 20100164144
    Abstract: A device and a method for ejecting at least one capsule are proposed, comprising at least two ejecting means (18) for ejecting at least one capsule (24) from a holder (22) receiving the capsules (24), wherein drive control means (16, 20, 23) are provided in order to move the ejecting means (18) independently of one another in the ejecting direction, depending on whether the capsule (24) assigned to the ejecting means (18) is detected as in order or defective.
    Type: Application
    Filed: July 3, 2007
    Publication date: July 1, 2010
    Inventors: Manfred Kuhnle, Ralf Schmied, Werner Runft, Thomas Franck
  • Patent number: 7744800
    Abstract: Method and apparatus for controlling the stacking height of stackable products during compression molding off stops includes slides that are movable into and out of an end of blind pockets in a compression mold in which the stack height surfaces are formed during the molding cycle. The slides are held in a retracted position until after the mold is closed and the molding compound flows to the shape of the molding cavity inside the mold including the blind pockets. Then the slides are extended into the ends of the respective blind pockets the same distance to compress the molding compound and obtain the desired height of the stack height surfaces formed by the blind pockets.
    Type: Grant
    Filed: January 6, 2006
    Date of Patent: June 29, 2010
    Assignee: Molded Fiber Glass Companies
    Inventors: Thomas E. Levenhagen, Charles E. Kappelt
  • Publication number: 20100159054
    Abstract: A demolding device (10) for demolding a work piece from a mold comprises a hold-down element (18) that is disposed between the mold pieces in the closed state of the mold and extends up to or into a cavity provided for producing the work piece. A control sleeve (11) is connected to the hold-down element (18) and is coupled with one of the mold parts in a form-fitting manner via a guide device. The piston (11) is displaceable along a first path (w1) along the stroke direction limited by the guide device and is mounted in the guide device in a pivotable fashion. Upon a pivot motion, the end of the piston (11) facing the cavity moves away from the cavity. A first control piece (16) is connected to the other mold piece, the control piece blocking a pivoting of the piston (11) and/or the hold-down element (18) during the first path (w1).
    Type: Application
    Filed: October 23, 2007
    Publication date: June 24, 2010
    Inventor: Horst Jung
  • Publication number: 20100148402
    Abstract: During the production of teat rubbers, in particular of teat rubbers containing a high percentage of silicone, pressure is applied when the teat rubber preforms are removed, the radial expansion of teat rubber areas being appropriately limited to a maximum value. Hence, the removal can be executed automatically and at a comparatively high temperature without irreversible damage being caused to the material. The removal process can be supported by an appropriate contact surface whose contour corresponds, at least partially, to the outer contour of the preform. Furthermore, an appropriate removal device is provided.
    Type: Application
    Filed: January 22, 2008
    Publication date: June 17, 2010
    Inventors: Wilfried Hatzack, Jakob Maier
  • Publication number: 20100143519
    Abstract: A machine for rotational molding of products comprises means (12, 14, 16, 17) for driven rotation of a mold around perpendicular axes (13, 15), means (22) for direct heating of the mold and means (21) for commanded opening of the mold in half molds. The machine further comprises combined means (23, 24, 25) for arresting in a predetermined position of the rotating means of the mold disengageable retaining means (26, 27) for retaining the product in a preset half mold, and evacuating means (28, 50) for evacuating the product that are suitable for being introduced between the open half molds when the rotating means is stopped in said predetermined position and which is suitable for receiving the product discharged from said preset half mold upon the release of the retaining means.
    Type: Application
    Filed: March 11, 2008
    Publication date: June 10, 2010
    Inventor: Lorenzo Bergamo
  • Patent number: 7708540
    Abstract: An injection molding machine that performs a safe ejecting action of a molded article until a setting state of an ejector rod and a set forward end position for an ejection stroke of a molded article ejector are suitable for a mold in use. A resistor R1 is set to ON when a mold is changed and a resistor R2 is set to ON when a set value of the forward end position of the ejection stroke is changed. When resistor R1 or resistor R2 is ON, ejection is performed with a reduced ejecting force and at a reduced ejecting velocity. When a detected position of the ejector rod reaches the set forward end position, resistors R1 and R2 are turned OFF and thereafter the ejection is performed with a normal ejecting force and a normal ejecting velocity, to thereby prevent damage to the mold or to the molded article ejector.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: May 4, 2010
    Assignee: Fanuc Ltd
    Inventors: Hiroshi Watanabe, Nobuto Takeda
  • Patent number: 7708919
    Abstract: A method of removing solidified sprue plastic from an injection molding machine uses a picker assembly that includes an end-effector with a gripper. The injection molding machine has a stationary platen with a first mold, and has a moveable platen with a second mold. The method includes moving the gripper in a direction that is generally perpendicular to a direction that the second mold moves while the first mold and the second mold are opening. The method also includes grabbing the solidified sprue plastic before the first mold and the second mold reach a fully open position.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: May 4, 2010
    Assignee: Delphi Technologies, Inc.
    Inventors: John J. Patterson, Leonard J. Turco, Michael T. Nemet
  • Publication number: 20100102482
    Abstract: A method of forming a flat composite charge into a contoured composite part reduces wrinkles in the part as the charge is being formed. Dies are used to form a portion of charge to the steepest contour of the part, while tension is maintained on the charge as the remaining portions of the charge are formed.
    Type: Application
    Filed: October 25, 2008
    Publication date: April 29, 2010
    Inventors: Darrell D. Jones, Michael A. Lee, Michael R. Anderson, Joseph D. Brennan
  • Patent number: 7704063
    Abstract: A plastic injection mold assembly is disclosed in which an electric servo motor very precisely controls rotational speeds and amounts of torque applied to cores which extend into the mold cavities as the cores are withdrawn from plastic components being molded and simultaneously directs the linear distances which the cores travel during such withdrawal. A method of accomplishing the molding of plastic components in this manner is also disclosed.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: April 27, 2010
    Inventors: Alan A. Petrucci, William Sigsworth
  • Publication number: 20100044898
    Abstract: A molding device for easily releasing a molding material produced by transferring a minute shape to resin using a die having the minute shape formed thereon from the die with no damage. A method for controlling such molding device is also provided. The molding device and the control method are characterized in that the force for releasing the molding material from the die is detected and an alarm signal is delivered if the number of times when the releasing force becomes higher than a level preset depending on the molding material reaches a preset number of times.
    Type: Application
    Filed: April 11, 2008
    Publication date: February 25, 2010
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Motohiro Yamada, Hiroshi Miyakoshi
  • Publication number: 20090162467
    Abstract: Resin molding apparatus includes in unit, press unit and out unit. The in unit transfers not only pre-molding substrate but also resin material. The press unit includes multiple mold assemblies. The out unit transfers molded substrate having been resin-sealed within the mold assemblies. Further, the resin sealing/molding apparatus includes not only carrier rail but also demounting means and supply means traveling along the carrier rail. Furthermore, multiple press units in the state of being linked with each other are disposed between the in unit and the out unit.
    Type: Application
    Filed: January 26, 2007
    Publication date: June 25, 2009
    Inventors: Hiroshi Uragami, Mamoru Nakamura, Masanobu Takahashi, Kinya Fujino, Katsunori Tsutafuji
  • Publication number: 20090140461
    Abstract: A molding apparatus can include a primary mold, a stripper, and a swinging member. The swinging member can comprise a molding surface defining an undercut portion of a molded item. The swinging member can directly contact or attached to the stripper and the primary mold. To facilitate removal of a molded item, the swinging member can withdraw through a hole in the primary mold as a direct result of a motion of the stripper to pull the molded item off the primary mold. The molded item can then be easily removed.
    Type: Application
    Filed: December 3, 2007
    Publication date: June 4, 2009
    Applicant: PWP INDUSTRIES
    Inventors: Dean Brown, Terry Vovan
  • Publication number: 20090045539
    Abstract: According to an aspect of the present invention, there is provided a pattern forming apparatus in which a mold having a pattern is brought into contact with an imprinting material on a substrate to transfer the pattern, the apparatus including: a holding part configured to hold the mold; a moving part configured to move the holding part so that the mold is brought into contact with the imprinting material on the substrate and that the mold is removed therefrom; and a control part configured to control so that at least one of conditions of removing the mold can be changed based on conditions of the pattern formed in the mold, the conditions including a rate and an angle of removing the mold.
    Type: Application
    Filed: July 25, 2008
    Publication date: February 19, 2009
    Inventor: Ikuo YONEDA
  • Publication number: 20090022837
    Abstract: The invention allows for quickly changing the pneumatic ejection device of soap bars from the matrix. This is achieved by making it possible to remove the ejector without removing the matrix from the stamping machine, by simply releasing the cross bolt and injecting pressurized air, as usually done by the machine, in order to eject it, this way the ejector can be removed and cleaned or replaced and another ejector can be inserted into its housing along with the cross bolt, making the machine functional once again, avoiding wasted time, risks of accidents during handling and preserving the integrity of the matrix.
    Type: Application
    Filed: July 16, 2008
    Publication date: January 22, 2009
    Inventor: EDUARDO JOSE COLLAZUOL
  • Publication number: 20080299242
    Abstract: An injection molding machine that performs a safe ejecting action of a molded article until a setting state of an ejector rod and a set forward end position for an ejection stroke of a molded article ejector are suitable for a mold in use. A resistor R1 is set to ON when a mold is changed and a resistor R2 is set to ON when a set value of the forward end position of the ejection stroke is changed. When resistor R1 or resistor R2 is ON, ejection is performed with a reduced ejecting force and at a reduced ejecting velocity. When a detected position of the ejector rod reaches the set forward end position, resistors R1 and R2 are turned OFF and thereafter the ejection is performed with a normal ejecting force and a normal ejecting velocity, to thereby prevent damage to the mold or to the molded article ejector.
    Type: Application
    Filed: May 20, 2008
    Publication date: December 4, 2008
    Applicant: FANUC LTD
    Inventors: Hiroshi WATANABE, Nobuto TAKEDA
  • Publication number: 20080286396
    Abstract: According to embodiments of the present invention, there is provided an adjustment device for adjusting a distance between a take-off plate and a treatment device of a molding system and a method for use thereof. More specifically, there is provided a distance adjustment device configured to adjust a distance between a take-off plate coupled to a fixed platen of a molding system and a treatment device coupled to a movable platen of the molding system. The adjustment device comprises a movable platen engagement interface configured for attachment to the movable platen of the molding system; a plenum engagement interface configured for attachment to the treatment device; a distance adjustment mechanism configured to selectively fix a position of the treatment device relative to the movable platen in a desired position.
    Type: Application
    Filed: May 16, 2007
    Publication date: November 20, 2008
    Applicant: HUSKY INJECTION MOLDING SYSTEMS LTD.
    Inventors: Bernd Rudolf HEIN, Luc ROMMES, Tomislav URAC, Emad HAROUN, Peter Adrian LOOIJE
  • Publication number: 20080185747
    Abstract: In an injection mold, a compression pin is placed at a cavity surface by the pressing force of a biasing member, and is moved rearward by the pressure of filled resin so as to form a compression boss. After the completion of filling, the compression boss is compressed by the compression pin.
    Type: Application
    Filed: January 30, 2008
    Publication date: August 7, 2008
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Teruaki Uezaki, Takashi Arai, Yoshihiro Iitsuka
  • Publication number: 20080181978
    Abstract: A mold structure includes an ejecting tube disposed movably within a guide hole in a lower mold unit and having an ejecting end. The ejecting tube is communicated with an air chamber in the lower mold unit and a mold cavity. A pneumatic device is operable to draw air from the mold cavity into the ejecting tube. The ejecting tube is operable to move within the guide hole between a retracted position whereat the ejecting end is disposed outwardly of the mold cavity, and an ejecting position whereat the ejecting end is moved into the mold cavity so as to allow a molded product to be removed from the lower mold unit. The pneumatic device is also operable to introduce compressed air therefrom into the mold cavity via the air chamber and the ejecting tube.
    Type: Application
    Filed: January 30, 2007
    Publication date: July 31, 2008
    Inventor: Yu-Pei Ho
  • Publication number: 20080179793
    Abstract: Disclosed are: (i) an actuator of a molding system, (ii) a molding system including an actuator, (iii) a molded article made by usage of an actuator of a molding system, and (iv) a method of an actuator of a molding system.
    Type: Application
    Filed: January 26, 2007
    Publication date: July 31, 2008
    Applicant: HUSKY INJECTION MOLDING SYSTEMS LTD.
    Inventors: Robert Dietrich SCHAD, Martin Richard KESTLE, Joaquim Martins NOGUEIRA
  • Patent number: 7393197
    Abstract: An injection molding machine having a side-injection sub-assembly and a method for providing access to a hot passage distributor system therein. The injection molding machine includes a side-injection sub-assembly having an injection mold part and the hot passage distributor system. The hot passage distributor system is sandwiched between the injection mold part and a head plate by two or more bolt members, which attach the injection mold part to the head plate and are accessible from a side of the injection mold part. The injection molding machine further includes an ejection mold part for releasably mating to the injection mold part and defining a mold cavity.
    Type: Grant
    Filed: October 14, 2003
    Date of Patent: July 1, 2008
    Assignee: Incoe Corporation
    Inventor: Kurt Gauler
  • Publication number: 20080128959
    Abstract: Process for producing plastic containers, including an extrusion blow molding machine, is disclosed. For example, in an extrusion blow molding process for plastic bottles, in which plastic tubing (T) which has been extruded from an extruder head (4) in a definable cycle is placed in the mold cavity (7) of a blow molding tool arrangement (6), the inserted plastic tubing is inflated via an infeed blow mandrel by overpressure according to the mold cavity and is then removed from the mold. The extruded plastic tubing (T) is inserted into a mold cavity (7) which is composed of several blow mold cavities (71, 72, 73) which are located axially under one another, two of the blow mold cavities (71, 72) at a time being arranged mirror-symmetrically to one another and connected on their mouth regions and an individual blow mold cavity (73) being separated from the bottom section of the adjacent blow mold cavity (72) by a land region and having a mouth (10) on the outer surface of the blow molding tool arrangement (6).
    Type: Application
    Filed: June 15, 2005
    Publication date: June 5, 2008
    Applicant: Alpha Werke Alwin Lehner GmbH & Co. KG
    Inventor: Johann Kunz
  • Publication number: 20080023861
    Abstract: An injection molding quality control system which seeks to ensure greater accuracy and consistency in parts, more specifically more accurate and consistent part weight, utilizes measured part weight to adjust mold separation to better achieve a desired part weight. The mold separation is controlled via both a cycle-to-cycle adjustment in switchover point (preferably based on injected mass within the cavity), and within-cycle adjustment of holding pressure. The system can result in superior accuracy and consistency in molded parts in both the long term (i.e., over many cycles) and in the short term (from cycle to cycle).
    Type: Application
    Filed: July 28, 2006
    Publication date: January 31, 2008
    Inventors: Lih-Sheng Turng, Zbongbao Chen
  • Publication number: 20080014295
    Abstract: A device and process for extracting plastic preforms (5) from holders. Said device comprises a plate (23), which features straight slits (26) positioned parallel to each other, that is attached to a supporting table (20, 21). Each slit (26) comprises wider sections and constrictions (29, 30), which have a width (L2) smaller than the diameter of the ring (9) of the preform, so that the ring (9) can be fitted into the slit (26) through the wider section. The plate (23) is moved in the direction <<D>> by a specific length until the constrictions are positioned under the ring, and, thus, the preforms are removed by moving the plate away from the holders.
    Type: Application
    Filed: October 5, 2004
    Publication date: January 17, 2008
    Applicant: S.I.P.A. SOCIETA INDUSTRIALIZZAZIONE PROGETTAZIONE AUTOMAZIONE S.P.A.
    Inventors: Matteo Zoppas, Massimo Coran, Jader Pavanetto
  • Publication number: 20080003320
    Abstract: An ejector control device for an injection molding machine performs a series of processes that move ejector pins forward and backward a plurality of times to remove a molded article from a mold. Each process has various elements, such as a starting condition, a delay time from satisfaction of the starting condition to actual start of the operation, a target position, and a movement speed with which the ejector pins advance (or retract) to the target position from the position reached in the previous process. Data are set to specify the elements of each process and the execution order of the processes.
    Type: Application
    Filed: May 21, 2007
    Publication date: January 3, 2008
    Applicant: FANUC LTD
    Inventors: Osamu Saito, Hiroshi Watanabe, Tatsuhiro Uchiyama
  • Patent number: 7275922
    Abstract: A controller and a method for an ejector mechanism in an injection molding machine for appropriately setting a terminal position of a forward motion of ejector pins of the ejector mechanism. The terminal position of the forward motion is set to a position where an elastic force of return springs does not exceed a retaining force of a brake device for retaining the ejector pins at the terminal position. The elastic force of the springs are detected during the ejector pins are moved forward. A position of the ejector pins immediately before the detected elastic force of the springs exceeds the retaining force of the brake device is determined and displayed on a display device as a criterial position. The terminal position of the forward motion of the ejector pins is set not to exceed the determined criterial position.
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: October 2, 2007
    Assignee: Fanuc Ltd
    Inventors: Tatsuhiro Uchiyama, Yuichi Hosoya
  • Patent number: 7261548
    Abstract: A mold assembly for manufacturing concrete blocks that is adapted for use in a concrete block machine. The mold assembly includes a plurality of liner plates, each having a major surface, the liner plates configured such that the major surfaces form a mold cavity having a desired form, and wherein at least one of the liner plates is moveable. A gear drive assembly is selectively coupled to the at least one moveable liner plate and configured to move the at least one moveable liner plate toward and away from an interior of the mold cavity. A stabilizer assembly is operatively coupled to the gear drive assembly and is configured to support the gear drive assembly as it moves the at least one moveable liner plate.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: August 28, 2007
    Assignee: Haberman Machine
    Inventor: John T. Ness
  • Patent number: 7252796
    Abstract: A movable die is held on the front face of a movable platen. Ejector pins are incorporated in the movable die. An ejector unit that is provided with an ejector plate, actuator rods, etc., is mounted on the back of the movable platen. In ejecting a molded product from a die face, the ejector plate is advanced to cause the actuator rods to push out the ejector pins. In the ejecting load monitoring method of the invention, a plurality of monitoring sections are provided in a movement area of the ejector plate (or the actuator rod), and an upper limit value of a forward thrust load of the ejector plate is previously set for each monitoring section. An alarm is issued when the forward thrust load of the ejector plate reaches the upper limit value set for any of the monitoring sections during the ejecting operation.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: August 7, 2007
    Assignee: Toshiba Machine Co., Ltd.
    Inventor: Makoto Nishizawa
  • Patent number: 7223090
    Abstract: An all plastic metering pump having a bellows-type spring with a tubular valve which is integrally formed on it in a single piece in a discharge region toward a metering head, the tubular valve being designed as a discharge valve of the metering pump. In the method, the pump components, which have been manufactured in each case in a plurality of injection cycles, are assembled from the injection mold in a defined assembly sequence in time with the injection cycles, the number of assembly steps corresponding to the number of injection cycles for producing the various pump components.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: May 29, 2007
    Assignee: Ing. Erich Pfeiffer GmbH
    Inventor: Karl-Heinz Fuchs
  • Patent number: 7175408
    Abstract: A mold monitoring apparatus for an injection molding machine captures an image of a cavity portion of an opened mold, and determines the state of the cavity portion by means of image processing. The apparatus includes a light emitting unit, an image capturing unit, and an image processing unit. The light emitting unit projects onto the cavity portion light rays other than visible light rays. The image capturing unit includes an image sensor for capturing reflection light rays that travel from the cavity portion to the image sensor via a filter for blocking visible light rays. The image processing unit determines the state of the cavity portion on the basis of an image signal output from the image sensor and through image processing.
    Type: Grant
    Filed: April 11, 2003
    Date of Patent: February 13, 2007
    Assignee: Nissei Plastic Industrial Co., Ltd.
    Inventors: Yoshio Watanabe, Hirokazu Ihara
  • Patent number: 7118365
    Abstract: In a controller for avoiding interference between a mold body comprising a mold and a peripheral equipment installed to said mold and a product removing unit in an injection molding machine, a distance between the position of the mold body and the position of the product removing unit is determined. It is then judged whether or not the distance is smaller than a predetermined distance. If the distance is smaller than the predetermined distance, the operation of product removing unit is decelerated or stopped.
    Type: Grant
    Filed: June 19, 2003
    Date of Patent: October 10, 2006
    Assignee: Fanuc LTD
    Inventors: Toru Shirahata, Masayuki Ueno
  • Patent number: 7008208
    Abstract: In one embodiment, the invention is directed to an injection molding tool that has improved grounding. The injection molding process creates significant amounts of static electricity in the molten thermoplastic. This static electricity can be more adequately dissipated from the system through the addition of one or more paths to ground. In this manner, a significant reduction in charge passing between the stamper and the mirror block can be achieved. By reducing or eliminating the amount of charge passing between the stamper and the mirror block, erosion of the mirror block can be reduced or avoided.
    Type: Grant
    Filed: January 17, 2002
    Date of Patent: March 7, 2006
    Assignee: Imation Corp.
    Inventors: Anthony O. Banal, Gordon L. Hall, Loryn D. Klumper, Kraig A. Kohout
  • Patent number: 6994881
    Abstract: A device for the formation of croissants made of puff pastry or the like, said croissants being initially shaped into pastry rolls (12) starting from flat puff pastry, wherein there are at least two gripping or clasping and folding elements (13, 14, 15), connected by an articulated joint (16, 17) and suitable for being transferred, aligned with each other, onto portions of a puff pastry roll (12), withholding the roll (12) and being moved to a folded position thus causing the firmly held pastry roll to take on the form of a U- or crescent shape, there also being driving systems (25, 26) for the reciprocal movement between the at least two gripping or clasping and folding elements (13, 14, 15).
    Type: Grant
    Filed: July 3, 2002
    Date of Patent: February 7, 2006
    Assignee: Vortex Systems S.r.l.
    Inventor: Arturo Colamussi
  • Patent number: 6969245
    Abstract: Injection-moulding machine with at least one handling device, with an electronic stored-program control (SPC) for the injection-moulding machine and an electronic stored-program control for the handling device, characterized in that the stored-program control (SPC IMM, 17) for the injection-moulding machine (IMM) and the stored-program control (SPC R, 29) for the handling device (10) are realized on one and the same, common digital computer (30).
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: November 29, 2005
    Assignee: Engel Maschinenbau Gesellschaft m.b.H.
    Inventors: Rupert Mörwald, Engelbert Kastner
  • Patent number: 6902386
    Abstract: An electric servo motor is controlled through a pressure control loop wherein a control object is the injection mechanism of an electric injection molding machine. A band elimination filter, which attenuates a frequency component of a band with predetermined width to be determined based on the resonance frequency of the control object, is provided in the pressure control loop.
    Type: Grant
    Filed: May 20, 2003
    Date of Patent: June 7, 2005
    Assignee: Fanuc LTD
    Inventors: Tatsuhiro Uchiyama, Shingo Komiya, Motohiro Nagaya
  • Publication number: 20040217495
    Abstract: A method of producing a polarized lens and a casting die used therein are provided to allow a polarized film to be securely positioned within a casting die and a polarized lens to be cast in a uniform density and be almost free from any distortion on the surface so as to secure the stable uniformity of a lens as produced, which method comprises the steps of hot-pressing a polarized film 2 that is formed into a shape substantially corresponding to one of mobile portions 12 into a curved shape adaptable into a curvature of the lens; descending one of mobile portions 12 so as to generate a recess H thereat; mounting the polarized film 2 as shaped with the curvature into the recess H and closing a casting die 1; injecting a fused lens molding resin M into a cavity within the casting die 1 from a gate 13 with the lens molding resin M filled in a runner 13a engaged to the casting die 1; and taking out a prototype lens Lb in which the lens molding resin M is integrally jointed with the polarized film 2 when the mold
    Type: Application
    Filed: November 19, 2003
    Publication date: November 4, 2004
    Inventor: Yukio Takeda
  • Patent number: 6796787
    Abstract: A product ejecting apparatus for an injection molding machine includes: a first drive unit; a first transmission unit connected to the first drive unit, wherein a rotation of the first drive unit results in a rotation of the first transmission unit; a second drive unit; a second transmission unit connected to the second drive unit, wherein a rotation of the second drive unit causes a rotation of the second transmission unit; an ejector pin configured to reciprocate based upon a motion of the first transmission unit; and a working member connected to the second transmission unit, wherein a movement of the second transmission unit results in reciprocating movement of the working member. The first drive unit is operated so as to cause the first transmission member to reciprocate, thereby causing the ejector pin to reciprocate. The second drive unit is operated so as to cause the second transmission member to reciprocate, thereby causing the working member to reciprocate.
    Type: Grant
    Filed: March 15, 2001
    Date of Patent: September 28, 2004
    Assignee: Sumitomo Heavy Industries, Ltd.
    Inventor: Norihito Okada
  • Publication number: 20040119201
    Abstract: Apparatus for manufacturing molded products with an EMI/RFI/ESD shield. The apparatus includes shaping apparatus for automatically shaping a mesh blank into a mesh insert on a fixture, and a robot for removing the insert from the fixture and placing it in a molding machine in preparation for molding the insert into a molded product. Also disclosed is a method for manufacturing molded products involving the steps of automatically forming the blank into a mesh insert and automatically transferring the insert to a molding machine using a robot. A holding tool may be provided for the robot to use in transferring the insert to the molding machine.
    Type: Application
    Filed: July 14, 2003
    Publication date: June 24, 2004
    Applicant: Siegel-Robert, Inc.
    Inventors: Paul C. Burton, William M. Matich
  • Patent number: 6749783
    Abstract: A portable single station method and apparatus for compressing a quantity of freshly dug soil into building blocks by an enclosed system which provides a linear process for receiving and compressing the quantity of soil and for ejecting the formed, compressed building blocks. The system includes a stationary chamber equipped with an internal adjustable cavity in which the desired block is formed and a pair of opposing pressure heads capable of moving toward and away from each other in unison or independently to receive, compress, and eject the building blocks.
    Type: Grant
    Filed: August 22, 2001
    Date of Patent: June 15, 2004
    Inventor: Steve Everett
  • Publication number: 20040059452
    Abstract: A wireless image processing method and device for utilization in combination with a machine vision system, preferably a part-forming machine, wherein a wireless communicator delivers images to a host computer that can analyze the data and determine functionality to the manufacturing process, wherein the host computer can incorporate wireless components, wherein wireless signals can be sent and/or received to input/output modules to control the processes, and wherein the input/output modules can affect said control wirelessly, thereby minimizing and/or eliminating physical cabling and wiring constraints to enable smaller implementations, increased analysis capabilities, and improved price/performance ratios. Alternatively, an image analyzing means may be integrated with an image capturing means, wherein a control signal can be wirelessly communicated to affect the manufacturing process.
    Type: Application
    Filed: July 15, 2003
    Publication date: March 25, 2004
    Inventors: Edward Kachnic, Benjamin Pryhoda
  • Publication number: 20040012108
    Abstract: A motor is driven in a state where the moving platen of an injection molding machine is not mounted with a mold to protrude an ejector rod and the driving current of the motor is measured for each predetermined protrusion position. Then, the moving platen is mounted with the mold and the motor is driven to protrude the ejector rod, and the driving current of the motor is measured. It is determined that an ejector rod protrusion position where a difference between this measured current value and a current value stored in a data table becomes larger is the protrusion start position of an ejector pin.
    Type: Application
    Filed: May 1, 2003
    Publication date: January 22, 2004
    Applicant: Fanuc Ltd.
    Inventor: Mitsushi Yoshioka
  • Publication number: 20040005372
    Abstract: In a controller for avoiding interference between a mold body comprising a mold and a peripheral equipment installed to said mold and a product removing unit in an injection molding machine, a distance between the position of the mold body and the position of the product removing unit is determined. It is then judged whether or not the distance is smaller than a predetermined distance. If the distance is smaller than the predetermined distance, the operation of product removing unit is decelerated or stopped.
    Type: Application
    Filed: June 19, 2003
    Publication date: January 8, 2004
    Applicant: FANUC LTD.
    Inventors: Toru Shirahata, Masayuki Ueno
  • Patent number: 6669877
    Abstract: This invention provides a method which makes it possible to reliably detect malfunctions during the ejecting step without rendering the injection molding machine more complicated. An ejector pin is incorporated in the movable die. This ejector pin is connected, via an ejector plate, a connecting rod, a connecting plate and a feed screw, with a servo motor. The force for ejecting the ejector pin pushing a molded product is measured from the driving torque of a servo motor. In this invention, the relationship between driving torque and elapsed time from the initiation of ejection of the molded product is stored as a reference pattern. The tolerance limit and monitoring interval of driving torque are preset relative to the reference pattern. When the value of driving torque falls outside the tolerance limit during the ejecting step, it is judged as a malfunction, and an alarm is generated to stop the machine in a safe state.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: December 30, 2003
    Assignee: Toshiba Machine Co., Ltd.
    Inventors: Haruyuki Matsubayashi, Akira Kanda, Takamitsu Yamashita, Takashi Yamazaki, Yukio Iimura, Yutaka Yamaguchi, Masamitsu Suzuki
  • Patent number: 6659760
    Abstract: A plastic injection molding machine includes a rod having an end engaged with a slide member located beside the lower mold, and a position block connected to the upper mold. A pin is movably inserted in two respective inclined holes in the position block and the slide member so that the threaded section on the tip end of the rod is moved into the cavity with the movement of the slide member. The rod is located between two side members each have a threaded semi-circular recess. Another threaded section has the same threads of the thread section on the tip end of the rod is engaged with the two threaded semi-circular recesses so that the rod is rotatably withdrawn from the cavity smoothly when the rod is rotated by a motor.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: December 9, 2003
    Assignee: Taiwan Green Point Enterprise Co., Ltd.
    Inventors: Hsueh-Hsin Liao, Chung-Ming Hung
  • Publication number: 20030206986
    Abstract: A part-forming machine having an in-mold integrated vision system and method therefor for verifying the presence, absence and quality of molded parts therein. The image of the mold and/or part is acquired at a substantially parallel angle relative to the image-capturing source thereby allowing the imaging of the mold while the mold is opening thus increasing the resolution, speed and accuracy of part-forming machine imaging systems.
    Type: Application
    Filed: May 20, 2003
    Publication date: November 6, 2003
    Inventor: Edward F. Kachnic
  • Publication number: 20030203066
    Abstract: This invention provides a mold comprising a first mold half which works in conjunction with a second mold half for forming ophthalmic devices wherein said first mold half comprises at least one changeable cassette comprising inserts for forming said ophthalmic devices. The mold is particularly well-suited for use in an injection molding machine.
    Type: Application
    Filed: May 14, 2003
    Publication date: October 30, 2003
    Inventors: Victor Lust, Philip K. Parnell, Kornelis Renkema, Jan Van Lievenoogen, Will Van Kraay
  • Patent number: 6618643
    Abstract: An injection mold design method for correcting a profile of a product to be fabricated into a releasable profile from a mold to design an injection mold based on a corrected product shape, utilizing a storage device for storing information of the product shape and mold profile, a display device for displaying the product shape or the mold profile on a screen based on the information read from the storage device, an input device for inputting designation information necessary for correction of the product shape or the mold profile, and a controlling device for unloading information of lines or planes being obstructive to correction of the product shape and the mold profile in the storage device in response to the designation information input by the input device.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: September 9, 2003
    Assignee: Fujitsu Limited
    Inventors: Shusaku Nishiyama, Shingo Yamaguchi, Tatsuo Kimura, Masayuki Imakado, Naoki Asano, Fumihiko Makiuchi
  • Patent number: 6616872
    Abstract: A method of and an apparatus for precisely determining a separating force of a molded product from a mold by an ejector in an injection molding machine. A load exerted on an ejector mechanism in operation without a product molded in the mold is constituted by an inner resistance of the ejector mechanism. The inner resistance includes frictional force produced within the ejector mechanism and resilient forces of springs for returning ejector pins to retracted positions thereof. On the other hand, the load exerted on the ejector mechanism in operation with a product molded in the mold is constituted by the inner resistance and the separating force of the molded product from the mold. Thus, a difference between the loads detected in driving the ejector mechanism with and without a molded product at each ejector position precisely represents the separating force of the molded product from the mold.
    Type: Grant
    Filed: November 6, 2001
    Date of Patent: September 9, 2003
    Assignee: Fanuc Ltd
    Inventors: Masao Kamiguchi, Tatsuhiro Uchiyama, Hiroshi Watanabe