Patents Assigned to Star Seiki Co., Ltd.
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Patent number: 7841059Abstract: 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: GrantFiled: July 9, 2008Date of Patent: November 30, 2010Assignee: Star Seiki Co., Ltd.Inventor: Kouji Mizuno
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Patent number: 7699594Abstract: 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: GrantFiled: October 31, 2005Date of Patent: April 20, 2010Assignee: Star Seiki Co., Ltd.Inventor: Tatunari Ito
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Patent number: 7559265Abstract: 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: GrantFiled: August 24, 2007Date of Patent: July 14, 2009Assignee: Star Seiki Co., Ltd.Inventor: Kouji Mizuno
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Publication number: 20090022841Abstract: 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: ApplicationFiled: July 9, 2008Publication date: January 22, 2009Applicant: STAR SEIKI CO. LTD.Inventor: Kouji MIZUNO
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Patent number: 7464485Abstract: 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: GrantFiled: October 10, 2006Date of Patent: December 16, 2008Assignee: Star Seiki Co., Ltd.Inventor: Hatsuhiko Kawase
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Publication number: 20080223169Abstract: 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: ApplicationFiled: August 24, 2007Publication date: September 18, 2008Applicant: STAR SEIKI CO. LTD.Inventor: Kouji Mizuno
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Patent number: 7316079Abstract: 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: GrantFiled: October 22, 2004Date of Patent: January 8, 2008Assignee: Star Seiki Co., Ltd.Inventor: Hatsuhiko Kawase
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Publication number: 20070063061Abstract: 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: ApplicationFiled: June 7, 2006Publication date: March 22, 2007Applicant: STAR SEIKI CO., LTD.Inventor: Tatsuhiko Nagasaka
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Publication number: 20070017629Abstract: 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: ApplicationFiled: October 31, 2005Publication date: January 25, 2007Applicant: STAR SEIKI CO., LTD.Inventor: Tatsunari Ito
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Publication number: 20060037210Abstract: 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: ApplicationFiled: October 22, 2004Publication date: February 23, 2006Applicant: STAR SEIKI CO. LTD.Inventor: Hatsuhiko Kawase
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Publication number: 20050188560Abstract: 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: ApplicationFiled: July 8, 2004Publication date: September 1, 2005Applicants: STAR SEIKI CO. LTD., STAR SERVICE CO., LTD.Inventor: Kazumi Okada
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Patent number: 6537055Abstract: 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: GrantFiled: May 3, 2001Date of Patent: March 25, 2003Assignee: Star Seiki Co, Ltd.Inventor: Isao Adachi
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Patent number: 6485285Abstract: 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: GrantFiled: May 5, 2000Date of Patent: November 26, 2002Assignee: Star Seiki Co., Ltd.Inventor: Yousuke Shiotani
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Publication number: 20020105104Abstract: 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: ApplicationFiled: May 3, 2001Publication date: August 8, 2002Applicant: STAR SEIKI CO. LTD.Inventor: Isao Adachi
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Patent number: 5206035Abstract: Herein disclosed is an automatic mold clamping apparatus for a molding machine.Type: GrantFiled: April 3, 1992Date of Patent: April 27, 1993Assignee: Star Seiki Co., Ltd.Inventor: Yosuke Shiotani
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Patent number: 5000654Abstract: 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: GrantFiled: December 28, 1989Date of Patent: March 19, 1991Assignee: Star Seiki Co., Ltd.Inventor: Yosuke Shiotani
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Patent number: 4968214Abstract: 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: GrantFiled: December 12, 1988Date of Patent: November 6, 1990Assignee: Star Seiki Co., Ltd.Inventor: Yosuke Shiotani
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Patent number: 4842476Abstract: 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: GrantFiled: May 2, 1988Date of Patent: June 27, 1989Assignee: Star Seiki Co., Ltd.Inventor: Yosuke Shiotani