Patents Assigned to Star Seiki Co., Ltd.
  • Patent number: 7841059
    Abstract: As cams provided on platen-side attachments move from a lock-releasing position to a locking position while the ball-supporting members of the platen-side attachments remain inserted in the ball-receiving members of mold-side attachments, locking balls sliding in inclined-locking grooves are moved outward in a direction at right angles to the direction in which the cams move, and are set in engaging-locking grooves and abut on the curved parts of the engaging-locking grooves. Therefore, the mold-side attachments are closely attached and fixed to the platen-side attachments. As the cams move from the locking position to the lock-releasing position, the pushing balls sliding in inclined-pushing grooves are moved outward in a direction at right angles to the direction in which the cams move, and abut on the curved parts of the engaging-pushing grooves. In this case, the mold-side attachments can project from the platen-side attachments.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: November 30, 2010
    Assignee: Star Seiki Co., Ltd.
    Inventor: Kouji Mizuno
  • Patent number: 7699594
    Abstract: A method and an apparatus for supplying a label to a pseudo-core with the label held in the right position that can reduce the rate of producing defective molded products. They also can delivery a label with reduced suction force for drawing the label so as to downsize the apparatus and reduce the cost. A label 25 that is sucked and held at least at a longitudinal central part thereof is introduced into a pseudo metal mold 23 having a hollow section 23a whose inner surface shows a profile substantially agreeing with the outer profile of a corresponding pseudo-core and an aperture section 23b communicating with the hollow section 23a by way of pseudo metal mold 23 so as to extend along the inner surface of the hollow section 23a, while it is being resiliently deformed. Subsequently, the label 25 is supplied to the pseudo-core 21 coming into the hollow section 23a of the pseudo metal mold 23.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: April 20, 2010
    Assignee: Star Seiki Co., Ltd.
    Inventor: Tatunari Ito
  • Patent number: 7559265
    Abstract: Even if the coupling surface of an arm side attachment and a tool side attachment is directed in a direction other than the horizontal direction, the tool side attachment can be automatically separated and detached from the arm side attachment. When exchanging a tool, the worker does not have to forcibly pull out and detach a tool side attachment from an arm side attachment, a tool can be exchanged automatically, and the exchange work can be performed easily in a short period of time. When the cam member 17 is shifted from the unlocking position to the locking position, locking balls 13 which slide on locking inclined tapered surfaces 17a to be shifted to the outside along the radius direction are engaged with engaging inclined tapered surface 23a so as to mutually couple an arm side attachment 3 and a tool side attachment 5.
    Type: Grant
    Filed: August 24, 2007
    Date of Patent: July 14, 2009
    Assignee: Star Seiki Co., Ltd.
    Inventor: Kouji Mizuno
  • Publication number: 20090022841
    Abstract: As cams provided on platen-side attachments move from a lock-releasing position to a locking position while the ball-supporting members of the platen-side attachments remain inserted in the ball-receiving members of mold-side attachments, locking balls sliding in inclined-locking grooves are moved outward in a direction at right angles to the direction in which the cams move, and are set in engaging-locking grooves and abut on the curved parts of the engaging-locking grooves. Therefore, the mold-side attachments are closely attached and fixed to the platen-side attachments. As the cams move from the locking position to the lock-releasing position, the pushing balls sliding in inclined-pushing grooves are moved outward in a direction at right angles to the direction in which the cams move, and abut on the curved parts of the engaging-pushing grooves. In this case, the mold-side attachments can project from the platen-side attachments.
    Type: Application
    Filed: July 9, 2008
    Publication date: January 22, 2009
    Applicant: STAR SEIKI CO. LTD.
    Inventor: Kouji MIZUNO
  • Patent number: 7464485
    Abstract: A method for dehumidifying and drying resin pellets that can efficiently dry both non-crystallized resin pellets and crystallized resin pellets, the apparatus being adapted to downsizing. A control means 67 adapts to operate in a first drying mode of controlling the heating operation of the first heating member 25 for heating longitudinally divided regions of the first cylinder 5 section to produce differentiated respective heating effects and that of the second heating member 31 for uniformly heating the second cylinder 7 section so as to crystallize the supplied non-crystallized resin pellets NCRP and subsequently drying them and in a second drying mode of controlling the heating operation of the first heating member 25 and that of the second heating member 31 for uniformly heating the first and second cylinder 5,7 sections so as to drying the supplied crystallized resin pellets CRP.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: December 16, 2008
    Assignee: Star Seiki Co., Ltd.
    Inventor: Hatsuhiko Kawase
  • Publication number: 20080223169
    Abstract: Even if the coupling surface of an arm side attachment and a tool side attachment is directed in a direction other than the horizontal direction, the tool side attachment can be automatically separated and detached from the arm side attachment. When exchanging a tool, the worker does not have to forcibly pull out and detach a tool side attachment from an arm side attachment, a tool can be exchanged automatically, and the exchange work can be performed easily in a short period of time. When the cam member 17 is shifted from the unlocking position to the locking position, locking balls 13 which slide on locking inclined tapered surfaces 17a to be shifted to the outside along the radius direction are engaged with engaging inclined tapered surface 23a so as to mutually couple an arm side attachment 3 and a tool side attachment 5.
    Type: Application
    Filed: August 24, 2007
    Publication date: September 18, 2008
    Applicant: STAR SEIKI CO. LTD.
    Inventor: Kouji Mizuno
  • Patent number: 7316079
    Abstract: An apparatus for drying resin pellets to be supplied to a molding machine under reduced pressure of a desired level by a reduced pressure drying means comprises a preheating means for heating resin pellets to be supplied to the reduced pressure drying means to a temperature level that allows the moisture of the resin pellets to turn into steam under reduced pressure but maintain the resin pellets in an unmolten state.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: January 8, 2008
    Assignee: Star Seiki Co., Ltd.
    Inventor: Hatsuhiko Kawase
  • Publication number: 20070063061
    Abstract: A mold temperature regulating apparatus includes a casing which can be located indoors. Within the casing, there are installed a heating tank through which a temperature-regulating medium returned from a mold passes, a cooling tank for storing the common temperature-regulating medium returned from the mold, a heater for heating the temperature-regulating medium in the heating tank, a cooling system for cooling the temperature-regulating medium in the cooling tank, a confluence pump that allows the temperature-regulating medium cooled in the cooling tank to join the temperature-regulating medium in the heating tank, and a medium-feeding pump for feeding out the temperature-regulating medium discharged from the heating tank into the mold. The cooling system is configured to indirectly cool the temperature-regulating medium by a different cooling medium circulated in the casing.
    Type: Application
    Filed: June 7, 2006
    Publication date: March 22, 2007
    Applicant: STAR SEIKI CO., LTD.
    Inventor: Tatsuhiko Nagasaka
  • Publication number: 20070017629
    Abstract: A method and an apparatus for supplying a label to a pseudo-core with the label held in the right position that can reduce the rate of producing defective molded products. They also can delivery a label with reduced suction force for drawing the label so as to downsize the apparatus and reduce the cost. A label 25 that is sucked and held at least at a longitudinal central part thereof is introduced into a pseudo metal mold 23 having a hollow section 23a whose inner surface shows a profile substantially agreeing with the outer profile of a corresponding pseudo-core and an aperture section 23b communicating with the hollow section 23a by way of pseudo metal mold 23 so as to extend along the inner surface of the hollow section 23a, while it is being resiliently deformed. Subsequently, the label 25 is supplied to the pseudo-core 21 coming into the hollow section 23a of the pseudo metal mold 23.
    Type: Application
    Filed: October 31, 2005
    Publication date: January 25, 2007
    Applicant: STAR SEIKI CO., LTD.
    Inventor: Tatsunari Ito
  • Publication number: 20060037210
    Abstract: An apparatus for drying resin pellets to be supplied to a molding machine under reduced pressure of a desired level by a reduced pressure drying means comprises a preheating means for heating resin pellets to be supplied to the reduced pressure drying means to a temperature level that allows the moisture of the resin pellets to turn into steam under reduced pressure but maintain the resin pellets in an unmolten state.
    Type: Application
    Filed: October 22, 2004
    Publication date: February 23, 2006
    Applicant: STAR SEIKI CO. LTD.
    Inventor: Hatsuhiko Kawase
  • Publication number: 20050188560
    Abstract: The present invention provides a resin pellet dryer that can efficiently dry pellets, avoiding the above identified space problem, and prevent pellets from agglomerating when they are molten. In the resin pellet dryer, a pellet containing section formed by laying a plurality of tubes horizontally in parallel with each other and adapted to contain pellets in the inside, screw feeders arranged in the respective tubes, vacuum means for establishing a predetermined vacuum level in the inside of the pellet containing section, heaters arranged at the respective tubes so as to heat the inside of the pellet containing section to a predetermined temperature level, shutters arranged respectively at the uppermost tube and at the lowermost tube of the pellet containing section, and control means for controlling the actuators, the electric motors for screw feeders and the vacuum means for operation and the heaters for temperature.
    Type: Application
    Filed: July 8, 2004
    Publication date: September 1, 2005
    Applicants: STAR SEIKI CO. LTD., STAR SERVICE CO., LTD.
    Inventor: Kazumi Okada
  • Patent number: 6537055
    Abstract: The invention provides a removing apparatus for molded products and a method for cutting off gates of molded products, by which various types of molded products having different gate positions from each other are cut off to separate the product parts from runners with high accuracy by using a single cutting member and which contributes to downsizing of the apparatus itself. The invention further provides a removing apparatus for molded products and a method for cutting off gates of molded products, by which work for attaching the cutting unit is simplified and work for removing is made very efficient.
    Type: Grant
    Filed: May 3, 2001
    Date of Patent: March 25, 2003
    Assignee: Star Seiki Co, Ltd.
    Inventor: Isao Adachi
  • Patent number: 6485285
    Abstract: A removal apparatus is provided which includes a travelling frame, first and second carriages provided on the travelling frame, first and second cross frames provided on the first and second carriages, first and second cross carriages provided on the first and second cross frames, first and second vertical units provided on the first and second cross carriages, and first and second chucking units secured to the first and second vertical units. In addition, a control unit is provided for synchronously controlling the movement of the first and second carriages, the first and second cross carriages, and the first and second vertical units so as to enable the first and second chucking units to be moved in three dimensions for removal of a molded product from a molding machine.
    Type: Grant
    Filed: May 5, 2000
    Date of Patent: November 26, 2002
    Assignee: Star Seiki Co., Ltd.
    Inventor: Yousuke Shiotani
  • Publication number: 20020105104
    Abstract: The invention provides a removing apparatus for molded products and a method for cutting off gates of molded products, by which various types of molded products having different gate positions from each other are cut off to separate the product parts from runners with high accuracy by using a single cutting member and which contributes to downsizing of the apparatus itself. The invention further provides a removing apparatus for molded products and a method for cutting off gates of molded products, by which work for attaching the cutting unit is simplified and work for removing is made very efficient.
    Type: Application
    Filed: May 3, 2001
    Publication date: August 8, 2002
    Applicant: STAR SEIKI CO. LTD.
    Inventor: Isao Adachi
  • Patent number: 5206035
    Abstract: Herein disclosed is an automatic mold clamping apparatus for a molding machine.
    Type: Grant
    Filed: April 3, 1992
    Date of Patent: April 27, 1993
    Assignee: Star Seiki Co., Ltd.
    Inventor: Yosuke Shiotani
  • Patent number: 5000654
    Abstract: A reciprocating drive apparatus for an automatic molding removing machine designed to remove a molded product from a molding machine by moving a chuck member, at least, in the longitudinal direction with a traveling member which is supported on a machine frame so as to be movable in the longitudinal direction.
    Type: Grant
    Filed: December 28, 1989
    Date of Patent: March 19, 1991
    Assignee: Star Seiki Co., Ltd.
    Inventor: Yosuke Shiotani
  • Patent number: 4968214
    Abstract: Apparatus for automatically taking out a molded product, includes an elongated main frame, a laterally movable body supported on the main frame and movable in the longitudinal direction of the main frame, a first drive device for reciprocally moving the laterally movable body relative to the main frame. A frontward-backward movable body is supported on a frontward-backward frame which is connected to the laterally movable body, the frontward-backward movable body being movable in a direction which is substantially perpendicular to the longitudinal direction of the main frame. A lifting device is provided, which includes a drive member connected to the frontward-backward movable body and having a vertically directed axis, a first driven member connected to the frontward-backward movable body and also connected to a rotary member which is rotatably supported on the movable frame. An attachment frame is supported on the movable frame and is movable in a vertical direction.
    Type: Grant
    Filed: December 12, 1988
    Date of Patent: November 6, 1990
    Assignee: Star Seiki Co., Ltd.
    Inventor: Yosuke Shiotani
  • Patent number: 4842476
    Abstract: A manipulator for moving a workpiece to a given position includes a supporting member, a driving member, a rotary member, a moving member, a speed change mechanism and a chuck member. The supporting member is so supported on a frame as to be movable in the moving direction of the workpiece. The driving member causes the supporting member to reciprocate. The rotary member makes a pair of first pulleys rotate with movement of the supporting member, the first pulleys being rotatably supported with a predetermined spacing on said supporting member. The moving member is connected to a pair of second pulleys rotatably supported with a predetermined spacing on the supporting member. The speed change mechanism is connected at least between one of the first pulleys and one of the second pulleys and moves the moving member by rotating the second pulleys at a given rotational frequency with respect to the first pulleys which rotate with movement of the rotary member.
    Type: Grant
    Filed: May 2, 1988
    Date of Patent: June 27, 1989
    Assignee: Star Seiki Co., Ltd.
    Inventor: Yosuke Shiotani