Patents Assigned to Toshiba Kikai Kabushiki Kaisha
  • Automatic temperature rise control method for molding machine
    Patent number: 9592630
    Abstract: A method for controlling temperature rise in divided heating zones of a barrel of a molding machine includes: setting tentative target temperatures for the respective heating zones; simultaneously raising temperatures in the heating zones to the set tentative target temperatures; when temperatures in the heating zones reach the respective tentative target temperatures, selecting a master zone from the heating zones, and selecting, as a slave zone, a heating zone which is other than the master zone among the heating zones; and after temperatures in the heating zones reach the respective tentative temperatures, raising the temperatures in the master zone and the slave zone to respective final target temperatures according to an attainment degree of temperature rise in the master zone.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: March 14, 2017
    Assignee: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventor: Takamichi Ito
  • T-DIE AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20170066085
    Abstract: On at least the edge portion (9e) of the lip portion (9) of a T-die (1), a cladding layer (10) is provided. The cladding layer is formed by laser build-up welding to a base material with a powder of a corrosion resistant and wear resistant alloy comprising a nickel-based alloy or a cobalt-based alloy. The cladding layer has a metallographic structure in which metal borides are dispersed in a binder phase. The lip portion has high quality and has high durability. The manufacturing costs of the T-die can also be kept relatively low.
    Type: Application
    Filed: September 13, 2016
    Publication date: March 9, 2017
    Applicant: Toshiba Kikai Kabushiki Kaisha
    Inventors: Shuhei Honma, Ryota Oke, Yosuke Ogino, Tomonori Yamaguchi, Seiya Mizuno
  • Apparatus for producing semi-solidified metal, method for producing semi-solidified metal, and semi-solidified metal
    Patent number: 9586261
    Abstract: An apparatus for producing a semi-solidified metal has a heating device which heats a metal material, a vessel, a cooling device which cools the vessel, and a pouring device which pours the metal material into the vessel. The vessel has a hollow member which configures a wall of the vessel and is opened at both of the upper and lower ends and into which the metal material is poured from the upper opening, and a bottom member which closes the lower opening of the hollow member and configures the bottom of the vessel. The cooling speed of the metal material by the bottom member is faster than the cooling speed of the metal material by the hollow member.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: March 7, 2017
    Assignee: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Satoru Aida, Satoshi Tomioka, Koei Nakata
  • KNEADING APPARATUS AND KNEADING METHOD
    Publication number: 20170050366
    Abstract: A kneading apparatus includes a processor, and a extruder. The extruder includes a screw. The screw includes a screw main body. A conveyance portion, a barrier portion, and a path are provided at places of the screw main body. In at least one of the places, the path is provided inside the screw main body, and includes an entrance and an exit. The raw materials, pressure on which is increased by the barrier portion, flow in from the entrance. The raw materials flowing in from the entrance flow through the path toward the exit. The exit is positioned to be remote from the entrance in an axial direction.
    Type: Application
    Filed: November 8, 2016
    Publication date: February 23, 2017
    Applicants: Toshiba Kikai Kabushiki Kaisha, HSP Technologies Inc.
    Inventors: Akiyoshi KOBAYASHI, Shigeyuki FUJII, Takafumi SAMESHIMA, Hiroshi SHIMIZU
  • EXTRUDER SCREW, EXTRUDER, AND EXTRUSION METHOD
    Publication number: 20170050367
    Abstract: A conveyance portion, a barrier portion, and a path are provided at places of a portion of a screw main body in which a kneading portion is provided. In at least one of the places, an entrance is opened to cause raw materials, conveyance of which is limited by a barrier portion to increase pressure on the raw materials, to flow in. The raw materials flowing in from the entrance flow through the path in the opposite direction to a conveyance direction of the conveyance portion. An exit is opened in an outer circumferential surface of the screw main body at a position outside the conveyance portion in which the entrance is opened.
    Type: Application
    Filed: November 8, 2016
    Publication date: February 23, 2017
    Applicant: Toshiba Kikai Kabushiki Kaisha
    Inventors: Akiyoshi KOBAYASHI, Shigeyuki FUJII, Takafumi SAMESHIMA
  • PRECISION MACHINE TOOL
    Publication number: 20170043441
    Abstract: In a precision machine tool wherein a spindle head 20 that is movable in the up and down direction is disposed on a column 14 disposed on a bed 10 and a water storage space for storing temperature-regulated cooling water is formed inside the column 14, the column 14 has, in a lower part thereof, intake ports 38a and 38b through which cooling water is led into the water storage space, the column 14 has, in an upper part thereof, a drain opening 40 through which a cooling water is led outside, and an air vent hole 49 through which air in the column is discharged is formed at a position higher than the drain opening 40.
    Type: Application
    Filed: November 1, 2016
    Publication date: February 16, 2017
    Applicant: Toshiba Kikai Kabushiki Kaisha
    Inventors: Norio YAMANISHI, Hiroshi UTIMURA
  • EXTRUDER SCREW, EXTRUDER AND EXTRUSION METHOD
    Publication number: 20170021547
    Abstract: According to one embodiment, an extruder screw includes a screw body. The screw body is rotated about an axis parallel to a direction of conveyance of a raw material. A conveyance portion having a flight is provided on the outer peripheral surface of the screw body. The flight is configured to convey the raw material along the axis of the screw body when the screw body is rotated. A passage for permitting the raw material fed by the flight to pass therethrough to the outer peripheral surface of the screw body is provided in the screw body in a position deviated from the axis of the screw body.
    Type: Application
    Filed: September 29, 2016
    Publication date: January 26, 2017
    Applicants: Toshiba Kikai Kabushiki Kaisha, HSP Technologies Inc.
    Inventors: Akiyoshi KOBAYASHI, Shigeyuki FUJII, Takafumi SAMESHIMA, Hiroshi SHIMIZU
  • Method of measuring temperature in cutting process
    Patent number: 9518871
    Abstract: The invention relates to a method of measuring a cutting temperature for an apparatus for a cutting process, when the apparatus for a cutting process includes a shank and a tool jointed to the shank by means of silver solder, the shank being electrically conductive, the tool being electrically nonconductive. The method includes: connecting a first lead wire to the shank, connecting a second lead wire to the silver solder, and measuring thermal electromotive force that is generated between the first lead wire and the second lead wire.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: December 13, 2016
    Assignee: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventor: Masahiko Fukuta
  • Nozzle touch mechanism and injection molding machine
    Patent number: 9517580
    Abstract: A nozzle touch mechanism (50) includes a base frame (6), a stationary platen (4) to which a mold (5) is to be attached, and an injection mechanism (1). The injection mechanism (1) is moved it toward the stationary platen (4) by means of a ball screw shaft (11). A motor portion (14) which applies a pressing force to the mold (5) from a nozzle (3) is connected to one end (11a) of the ball screw shaft (11). A connection mechanism (7) is provided which is connected to the other end (11b) of the ball screw shaft (11) and to the stationary platen (4) at a support located above the center of the nozzle (3). When no pressing force is applied to the mold (5) from the nozzle (3) by the motor portion (14), springs (18) can press the connection mechanism (7) in such a direction as to move it away from the stationary platen (4) with respect to the base frame (6).
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: December 13, 2016
    Assignee: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Hideaki Kitta, Toshihiro Kasai
  • Precision machine tool
    Patent number: 9511465
    Abstract: In a precision machine tool wherein a spindle head 20 that is movable in the up and down direction is disposed on a column 14 disposed on a bed 10 and a water storage space for storing temperature-regulated cooling water is formed inside the column 14, the column 14 has, in a lower part thereof, intake ports 38a and 38b through which cooling water is led into the water storage space, the column 14 has, in an upper part thereof, a drain opening 40 through which a cooling water is led outside, and an air vent hole 49 through which air in the column is discharged is formed at a position higher than the drain opening 40.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: December 6, 2016
    Assignee: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Norio Yamanishi, Hiroshi Utimura
  • Mold set
    Patent number: 9505149
    Abstract: A mold set according to embodiment comprising: a die including a plurality of parts and holding a molded material; and a back plate laid below the die.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: November 29, 2016
    Assignee: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Isao Matsuzuki, Yoshihiro Yamamoto
  • EXTRUDER SCREW, EXTRUDER, AND EXTRUSION METHOD
    Publication number: 20160332331
    Abstract: An extruder screw conveying raw materials while kneading them includes a screw main body, conveyance portions, barrier portions, and paths. The conveyance portions convey the raw materials in an axial direction. The paths each include an entrance and an exit. The raw materials, the conveyance of which is limited by the barrier portions, flow in from the entrance. The raw materials flowing in from the entrance flow through the paths in the same direction as a conveyance direction of the conveyance portions. The exit is opened in the outer circumferential surface of the screw main body at a position outside the conveyance portions in which the entrance is opened.
    Type: Application
    Filed: July 27, 2016
    Publication date: November 17, 2016
    Applicants: Toshiba Kikai Kabushiki Kaisha, HSP Technologies Inc.
    Inventors: Akiyoshi KOBAYASHI, Shigeyuki FUJII, Takafumi SAMESHIMA, Hiroshi SHIMIZU
  • EXTRUDER SCREW, EXTRUDER, AND EXTRUSION METHOD
    Publication number: 20160332332
    Abstract: An extruder screw conveying raw materials while kneading them includes a screw main body, conveyance portions, barrier portions, and paths. The conveyance portions convey the raw materials in an axial direction. The paths each include an entrance and an exit. The raw materials, the conveyance of which is limited by the barrier portions, flow in from the entrance. The raw materials flowing in from the entrance flow through the paths in an opposite direction to a conveyance direction. The exit is opened in the outer circumferential surface of the screw main body at a position outside the conveyance portions in which the entrance is opened.
    Type: Application
    Filed: July 27, 2016
    Publication date: November 17, 2016
    Applicants: Toshiba Kikai Kabushiki Kaisha, HSP Technologies Inc.
    Inventors: Akiyoshi KOBAYASHI, Shigeyuki FUJII, Takafumi SAMESHIMA, Hiroshi SHIMIZU
  • Clamping device and molding apparatus
    Patent number: 9469063
    Abstract: The clamping device has tie bars which are connected to a fixed platen and have engaged parts at a movable platen side, clamping cylinders which are provided on movable platens, half nut devices which are connected to pistons of the clamping cylinders and can mesh with the engaged parts, and stopper devices which restrict the movement of the half nut devices. Each stopper device has at least a driving unit and a stopper part which is driven in a mold opening and closing direction relative to the movable platen by driving of the driving unit and can engage with the half nut device from the fixed platen side. No winding transmission mechanism is interposed between the driving unit and the stopper part.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: October 18, 2016
    Assignee: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Kohei Watarai, Daisuke Yasuda
  • Transfer system and transfer method
    Patent number: 9452563
    Abstract: A transfer system 1 comprising: a conveying/positioning device 3 configured to convey and position a flat sheet-shaped mold MA in a predetermined direction, on which a fine transfer pattern M1 is formed; a transfer device 5 configured to transfer the fine transfer pattern M1 to a molding target W, the transfer device 5 being provided on an upstream side in the conveying direction of the sheet-shaped mold MA; and a peeling device 7 configured to peel off the sheet-shaped mold MA and the molding target from those mutually clinging to each other, after the transfer by the transfer device 5 is performed and the conveyance by the conveying/positioning device 3 is performed, the peeling device 7 being provided on a downstream side in the conveying direction of the sheet-shaped mold MA.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: September 27, 2016
    Assignee: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Shinya Itani, Hiromi Nishihara, Takato Baba, Takaharu Tashiro, Takafumi Ookawa, Hidetoshi Kitahara
  • Injection device, molding machine, and method for controlling injection device
    Patent number: 9446545
    Abstract: An injection device is provided with a stationary-side frame supporting a barrel, a movable-side frame rotatably supporting a screw, a pair of ball screws, and injection drive mechanisms includes servomotors configured to rotate the ball screws. A force detector such as a load cell and the like is disposed between the first ball screw and the movable-side frame. A dummy member is disposed between the second ball screw and the movable-side frame. A control unit controls the first injection drive mechanism based on the output of the force detector and controls the second injection drive mechanism based on the output of the force detector and an arithmetic operation performed in consideration of the respective spring constants of the force detector and the dummy member.
    Type: Grant
    Filed: September 17, 2013
    Date of Patent: September 20, 2016
    Assignee: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Harunobu Inami, Keisuke Mori
  • Control device for molding machine and manufacturing method for molded article
    Patent number: 9440388
    Abstract: A molding machine is provided with a display section with a touchpanel. A first storage section of a storage device is stored with molding conditions corresponding to molded articles each affixed with identification information. A second storage section is stored with image data on the molded articles each affixed with identification information. A third storage section is stored with memo information corresponding to the molded articles each affixed with identification information. When an image selection switch section on the display section is operated, the screen is changed to an image list screen and a plurality of images called up from the second storage section are listed. If one of these images is touched, the screen is changed to a detail display screen.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: September 13, 2016
    Assignee: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventor: Takeshi Nagami
  • Robot apparatus and control method therefor
    Patent number: 9434073
    Abstract: A robot apparatus (1) includes a control apparatus (3) which carries out correction with use of an estimated value of a joint torque estimation unit (53) which estimates a joint torque acting upon each of joints (20 to 25). The joint torque estimation unit (53) includes a Coulomb frictional force torque estimation unit (70), a viscous frictional torque estimation unit (71), and a transition interval arithmetic operation unit (72) which smoothens transition from the Coulomb frictional force torque estimation unit (70) to the viscous frictional force estimation unit (71) and transition from the viscous frictional force torque estimation unit (71) to the Coulomb frictional force torque estimation unit (70).
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: September 6, 2016
    Assignee: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Yuta Matsumoto, Yasunori Nishihara, Jun Fujita
  • Demolding device
    Patent number: 9415537
    Abstract: A demolding device detaches a sheet-shaped mold from a molded product. The demolding device includes a molded product holder placed in a location different from a transfer device. The molded product holder is constructed and arranged to hold the molded product while being adhered to a first region of the mold. A detaching roller on which the mold is wound is movably provided above the molded product holder in an extending direction of the mold to roll up and detach the mold from the molded product.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: August 16, 2016
    Assignee: TOSHIBA KIKAI KABUSHIKI KAISHA
    Inventors: Shinya Itani, Hiromi Nishihara, Takato Baba, Takaharu Tashiro, Takafumi Ookawa, Hidetoshi Kitahara
  • INDUSTRIAL MACHINE PROVIDED WITH FOREIGN MATTER EXPULSION MECHANISM
    Publication number: 20160229018
    Abstract: A foreign-substance discharge mechanism includes: a lubricating-liquid groove provided on a sliding surface of a wedge member and configured to receive a lubricating liquid; and a foreign-substance collector provided to the lubricating-liquid groove and configured to collect foreign substances existing in the lubricating-liquid groove. A first end and a second end of the lubricating-liquid groove are spaced apart from each other in a relative movement direction of the wedge member and the table bed. Disadvantages caused by the presence of the foreign substances between the sliding surfaces can be easily avoided by reliably collecting the foreign substances existing between the sliding surfaces using the lubricating-liquid groove and the foreign-substance collector.
    Type: Application
    Filed: June 16, 2015
    Publication date: August 11, 2016
    Applicant: Toshiba Kikai Kabushiki Kaisha
    Inventors: Atsushi TADA, Minoru KUROIWA