Seiko Epson Corporation

Kazuhide Nakamura

Koichi Saito

Kohei Yuwaki

Shunsuke Mizukami

Hiroyuki Kobayashi

Katsuhiro Okubo

Nobuyoshi Uji

Hiroshige Owaki

Taki Hashimoto

Munehide Kanaya

Eiji Okamoto

Satoshi Yamazaki

Akihiko Tsunoya

Hiroki Kobayashi

Manabu Watanabe

Masayuki Gozu

Hiroyuki Kamikura

Masaaki Ogihara

Koji Fujimori

Takafumi Sameshima

Tatsuya Teramoto

A three-dimensional shaping device includes: a discharge part that includes a nozzle configured to discharge a shaping material from a nozzle opening thereof; a stage that includes a shaping surface on which the shaping material is to be deposited; a heating part configured to heat the shaping material deposited on the stage; and a control part configured to control the heating part. The heating part includes a first region and a second region closer to an outer periphery of the heating part than is the first region, as viewed from a direction of a perpendicular line of the shaping surface. The control part controls the heating part to make a temperature of the second region higher than a temperature of the first region.

Three-dimensional shaping device

A material dispense device includes a nozzle portion that dispenses a material, and a main body portion that has a flow path for a material and to which the nozzle portion is attached. The main body portion includes a body portion having an outlet of the flow path, and a male screw provided at an outer periphery of the body portion. The nozzle portion has a dispense opening at a front end of an in-nozzle flow path for the material, and includes a nozzle tip that is pressed against the body portion in an arrangement of communicating with the flow path. The nozzle portion further includes a pressing member that presses the nozzle tip against the body portion in a state in which the dispense opening is exposed to the outside. The pressing member includes a female screw at an inner periphery thereof. By fastening the female screw of the pressing member to the male screw of the body portion, the nozzle tip is pressed against the body portion.

Material dispense device, three-dimensional shaping device, and injection molding device

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

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

Provided is a three-dimensional shaping apparatus in which surface of a three-dimensional shaped object can be prevented from being roughened. The three-dimensional shaping apparatus that shapes a three-dimensional shaped object by stacking layers of a material includes: a stage; a discharge unit that has a nozzle surface in which a nozzle hole is formed; a moving unit that is configured to change a relative position between the stage and the nozzle surface; and a control unit that is configured to control the moving unit. The control unit drives the moving unit such that a relation between a gap G between the nozzle surface and the stage or the layer of the material when the material is discharged from the discharge unit and an outer diameter Dp of the nozzle surface satisfies a following relation (1).&#x2264;20&#xd7;+0.20[mm]&#x2003;&#x2003;(1)

Three-dimensional shaping apparatus

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 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.

3D modeling device and 3D modeling method

In a manufacturing method of a three-dimensional formed object, the method includes a first discharging in which a forming material is continuously discharged from a nozzle while causing a position of the nozzle to change with respect to the forming table in a first direction which is perpendicular to a top surface of the forming table to cause the forming material to be deposited in the first direction, a second discharging in which the forming material is continuously discharged from the nozzle while changing the position of the nozzle with respect to the forming table in a second direction which is parallel to the top surface of the forming table to dispose the forming material along the second direction, and repeating in which the first discharging and the second discharging are repeated.

Manufacturing method and forming apparatus of three-dimensional formed object

A manufacturing method of a three-dimensional formed object includes disposing a first forming material on a forming table to form a plurality of structures which are separated from each other, and disposing a second forming material for forming the three-dimensional formed object such that the three-dimensional formed object is supported by the plurality of structures in a state of being separated from the forming table.

Growing community of inventors

Asahi, Japan

Kazuhide Nakamura