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US 11,865,752 B2Granted
Plasticizing device, injection molding apparatus, and three-dimensional shaping apparatus
AssigneeSeiko Epson Corporation
InventorHidenobu Maruyama
Life of this patent
Estimating the term…
Abstract
A plasticizing device includes a passage defining section that is coupled to a hopper which stores a material and that defines a supply passage to which the material is supplied from the hopper, a plasticizing section that includes an introduction portion which communicates with the supply passage, and a screw, and that plasticizes the material supplied from the introduction portion by rotation of the screw to form a molten material, and a material detection section that detects the presence or absence of the material in the supply passage.
Claims16
A plasticizing device, comprising:
- a passage defining frame that is coupled to a hopper which stores a material and that defines a supply passage to which the material is supplied from the hopper, the supply passage being elongated in an axial direction;
- a plasticizing assembly that includes a screw with an introduction portion, the introduction portion communicating with the supply passage, the plasticizing assembly being configured to plasticize the material supplied from the introduction portion by rotation of the screw around a rotation axis to form a molten material;
- and
- a sensor configured to sense in a direction along the rotation axis to detect a presence or absence of the material in the supply passage,
- wherein a hole communicating with the supply passage is formed in the passage defining frame, and the sensor is disposed in the hole, and
- the screw and the sensor are laterally shifted from each other when viewed along the rotation axis.
3 more elements
An injection molding apparatus, comprising:
- a plasticizing device configured to plasticize a material to form a molten material;
- and
- a nozzle configured to inject the molten material supplied from the plasticizing device to a mold, wherein
- the plasticizing device includes:
- a passage defining frame that is coupled to a hopper which stores the material and that defines a supply passage to which the material is supplied from the hopper, the supply passage being elongated in an axial direction;
- a plasticizing assembly that includes a screw with an introduction portion, the introduction portion communicating with the supply passage, the plasticizing assembly being configured to plasticize the material supplied from the supply passage by rotation of the screw around a rotation axis to form the molten material;
- and
- a sensor configured to sense in a direction along the rotation axis to detect a presence or absence of the material in the supply passage, and
- wherein a hole communicating with the supply passage is formed in the passage defining frame, and the sensor is disposed in the hole, and
- the screw and the sensor are laterally shifted from each other when viewed along the rotation axis.
7 more elements
A three-dimensional shaping apparatus that shapes a three-dimensional shaped article, comprising:
- a plasticizing device configured to plasticize a material to form a molten material;
- and
- a nozzle configured to eject the molten material supplied from the plasticizing device to a stage, wherein
- the plasticizing device includes:
- a passage defining frame that is coupled to a hopper which stores the material and that defines a supply passage to which the material is supplied from the hopper, the supply passage being elongated in an axial direction;
- a plasticizing assembly that includes a screw with an introduction portion, the introduction portion communicating with the supply passage, the plasticizing assembly being configured to plasticize the material supplied from the supply passage by rotation of the screw around a rotation axis to form the molten material;
- and
- a sensor configured to sense in a direction along the rotation axis to detect a presence or absence of the material in the supply passage,
- a hole communicating with the supply passage is formed in the passage defining frame, and the sensor is disposed in the hole, and
- the screw and the sensor are laterally shifted from each other when viewed along the rotation axis.
7 more elements
Dependencies are inferred from the claim text.