Seiko Epson Corporation

Koichi Saito

Kohei Yuwaki

Kazuhide Nakamura

Katsunori Ono

Shunsuke Mizukami

Nagamitsu Takashima

Kenji Ozawa

Hideyuki Ogawa

Hiroshi Miyazawa

Kinya Matsuzawa

Norio Ito

Taki Hashimoto

Yasushi Soya

Ryoji Uesugi

Masayuki Gozu

Yasuto Kanai

Katsumi Motojima

Munehide Kanaya

Hiroshige Owaki

Kunihiko Takagi

Kenta Anegawa

Akira Egawa

Satoshi Yamazaki

Kei Yokota

Hiroki Kobayashi

Motonori Okumura

Kazufumi Kato

Hiroyuki Kamikura

Kazuyoshi Imai

Kenji Matsuyama

Akio Todoriki

Tomonori Ishii

Manabu Saito

Atsushi Imai

Nobuyuki Soma

A production line monitoring system for monitoring a production line including a plurality of production devices is provided. The production line monitoring system includes: a plurality of terminals attached to a plurality of workers; and a server configured to communicate with the plurality of terminals via a wireless network. The server performs processing of receiving operation information about the production device and generating event information based on the operation information, processing of transmitting the event information to a first terminal and a second terminal of the plurality of terminals, and processing of transmitting event stop information to the second terminal when receiving response information transmitted from the first terminal after performing the processing of transmitting the event information.

Production line monitoring system

A three-dimensional shaping device includes a supply flow channel through which a shaping material flows, an ejection amount control mechanism that controls a flow amount of the shaping material to be ejected from a nozzle, a branch flow channel branched from a first partial flow channel as a flow channel between the melting section and the ejection amount control mechanism out of the supply flow channel, a transfer mechanism that transfers the shaping material in the second partial flow channel to the first partial flow channel via the branch flow channel, and a control section that controls the transfer mechanism to transfer the shaping material in the second partial flow channel to the first partial flow channel in a period from stopping the ejection of the shaping material from the nozzle to resuming the ejection.

Three-dimensional shaping device and method of shaping three-dimensional shaped article

Provided is a three-dimensional shaping apparatus comprising a nozzle having a discharge port through which a shaping material is discharged, and a flow rate regulation mechanism that includes a butterfly valve provided in a flow path upstream of the discharge port.

Shaping material supply device and three-dimensional shaping apparatus

In a method for manufacturing a three-dimensional shaped object, when an amount of a shaping material discharged toward a shaping surface per unit movement amount of a discharging unit is defined as a discharged shaping amount, in a layer forming step of forming a layer on the shaping surface, in a case in which a second partial shaped object to be shaped is not adjacent to a first partial shaped object that is shaped previously and is shaped with a gap between the first partial shaped object and the second partial shaped object, the second partial shaped object is shaped by setting the discharged shaping amount to a first discharged shaping amount, and in a case in which the second partial shaped object is adjacent to the first partial shaped object, the second partial shaped object is shaped by setting the discharged shaping amount to a second discharged shaping amount that is greater than the first discharged shaping amount.

Method for manufacturing three-dimensional shaped object and three-dimensional shaping apparatus

A three-dimensional modeling apparatus includes a nozzle that ejects a molten material, which is a plasticized thermoplastic material, a plasticization section which includes a flat screw having a groove extending in a volute shape and a driving motor that rotates the flat screw, the plasticization section rotating the flat screw to thereby guide the molten material to the nozzle through the groove, and an ejection control mechanism that is disposed in a flow path between the flat screw and the nozzle, and controls an outflow of the molten material from the nozzle.

Three-dimensional modeling apparatus and method for controlling three-dimensional modeling apparatus

A three-dimensional shaping apparatus includes a melting section providing a shaping material to a channel, a nozzle ejecting the shaping material to a shaping region of a shaping table, an ejection-amount adjusting mechanism adjusting an amount of the shaping material from the nozzle, a suction member sucking the shaping material in the channel, a memory configured to store a program, and a processor configured to execute the program so as to control the three-dimensional shaping apparatus. The processor is configured to stop the ejection of the shaping material and, thereafter, prior to resumption of the ejection of the shaping material, execute material purge processing for discharging the shaping material remaining in the melting section to a region different from the shaping region. The suction member is located closer to the nozzle than the ejection-amount adjusting mechanism in the first channel.

Three-dimensional shaping apparatus and control method for three-dimensional shaping apparatus

A three-dimensional shaping device includes: a discharge unit configured to discharge a shaping material; a weight measuring unit configured to measure a weight of the shaping material discharged from the discharge unit; and a control unit configured to control the discharge unit and the weight measuring unit to shape a three-dimensional shaped object by stacking layers of the shaping material in a shaping region of a stage, in which the control unit is configured to control the weight measuring unit to measure the weight of the shaping material discharged from the discharge unit, determine whether a predetermined amount of the shaping material is discharged from the discharge unit based on the weight measured by the weight measuring unit, and when it is determined that the predetermined amount of the shaping material is not discharged, control the discharge unit so that the predetermined amount of the shaping material is discharged from the discharge unit.

Three-dimensional shaping device and method for manufacturing three-dimensional shaped object

A three-dimensional modeling apparatus includes a drive motor, a plasticizing section having a flat screw configured to be rotated by the drive motor, the plasticizing section being configured to plasticize and convert the material into a molten material by the rotation of the flat screw, and a nozzle configured to inject the molten material.

Three-dimensional modeling apparatus and three-dimensional modeling method

A three-dimensional shaping device includes a chamber that has a shaping space; a heating unit configured to heat the shaping space; a base that has a shaping surface exposed to the shaping space; a discharge unit configured to discharge a shaping material toward the shaping surface while moving in a first direction in the shaping space heated by the heating unit and shape a three-dimensional shaped article; a first drive unit configured to move the base in a second direction crossing the first direction; and a tubular first heat resistant member that is disposed between a peripheral part of a first opening formed in a partition wall of the chamber and the base, configured to extend and contract in the second direction in accordance with a movement of the base in the second direction, and defines a separation space separated from the shaping space, in which at least a part of the first drive unit is disposed in the separation space.

Three-dimensional shaping device and manufacturing method for three-dimensional shaped article

A plasticization device includes: a rotor rotated by a drive motor and having a groove forming surface in which a first groove portion is formed along a rotation direction; a rotor case configured to accommodate the rotor; a barrel facing the groove forming surface and having a through hole; a first heating unit configured to heat the rotor or the barrel; and a cooling mechanism configured to cool a side surface of the rotor. In the plasticization device, a material supplied between the first groove portion and the barrel is plasticized by rotation of the rotor and heating by the first heating unit to flow out from the through hole, and the side surface of the rotor has a material guiding port configured to guide the material to the first groove portion, and a second groove portion configured to feed the material supplied between the rotor and the rotor case to the material guiding port.

Plasticization device, three-dimensional shaping device, and injection molding device

The plasticization device includes: a rotor rotating centered on a rotation axis by a drive motor and having a groove forming surface in which a first groove portion is formed along a rotation direction; a rotor case configured to accommodate the rotor; a barrel facing the groove forming surface and having a through hole; and a heating unit, in which a material supplied between the first groove portion and the barrel is plasticized by rotation of the rotor and heating by the heating unit to flow out from the through hole, and a side surface of the rotor has a material guiding port configured to guide the material to the first groove portion, and a second groove portion configured to feed the material supplied between the rotor and the rotor case to the material guiding port.

A molten material supplying apparatus includes: a first introduction unit introducing fiber material; a melting unit melting a thermoplastic resin into a molten material; a first flow path in which the molten material and the fiber material are distributed; and a nozzle communicating with the first flow path to feed a composite of the molten material and the fiber material. The melting unit includes: a facing section in which a communication hole communicating with the first flow path is formed, the facing section having a heater, and a flat screw which has a groove at a position facing the facing section, the flat screw being rotated to melt the thermoplastic resin into the molten material and supply the molten material into the communication hole. The first introduction unit introduces the fiber material into at least one of the communication hole and the first flow path.

Molten material supplying apparatus, three-dimensional modeling apparatus, and method for producing composite material

A 3D modeling device that forms a 3D object includes: a stage; a nozzle through which a fused material is ejected; a build plate disposed on the stage, the build plate receiving the fused material ejected through the nozzle to build the 3D object on the build plate; and a plasticizing member configured to plasticize a thermoplastic material to form the fused material. The plasticizing member includes: a flat screw having a grooved surface in which a groove is provided, the groove extending in a helical shape; a screw-facing piece having a communication path and a screw-facing surface facing the grooved surface; and a drive motor configured to rotate the flat screw. The groove continuously helically extends toward a material inlet from which the thermoplastic material in solid form is supplied, and the material inlet is provided on a side face of the flat screw.

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Matsumoto, Japan

Koichi Saito