Plasticizing device and three-dimensional shaping device
View Patent ↗A plasticizing device includes: a drive motor; a rotating unit driven to rotate about a rotation axis by the drive motor and having an end surface perpendicular to the rotation axis; a barrel having a bottom surface facing the end surface of the rotating unit, and a heater; and a material supply unit supplying the material between the rotating unit and the barrel. At the bottom surface of the barrel, a first communication hole through which the molten material flows out, a first groove part coupled to the first communication hole, a second communication hole through which the molten material flows out, and a second groove part coupled to the second communication hole are formed.
1. A plasticizing device plasticizing a material into a molten material, the plasticizing device comprising:
a drive motor;
a rotating unit driven to rotate about a rotation axis by the drive motor and having an end surface perpendicular to the rotation axis;
a barrel having a bottom surface facing the end surface of the rotating unit, and a heater; and
a material supply unit supplying the material between the rotating unit and the barrel, wherein
at the bottom surface of the barrel, a first communication hole through which the molten material flows out, a first groove part coupled to the first communication hole, a second communication hole through which the molten material flows out, and a second groove part coupled to the second communication hole are formed.
2. The plasticizing device according to claim 1 , wherein
the first groove part and the second groove part are respectively formed spirally.
3. The plasticizing device according to claim 1 , wherein
a shape of the first groove part is different from a shape of the second groove part.
4. The plasticizing device according to claim 1 , wherein
the rotating unit has a plurality of plate-like blade parts protruding toward an outer circumference from a lateral surface intersecting with the end surface.
5. The plasticizing device according to claim 1 , the barrel has a first supply port supplying the material to the first groove part, and a second supply port supplying the material to the second groove part.
6. A three-dimensional shaping device comprising:
a first nozzle and a second nozzle ejecting a shaping material;
a plasticizing device plasticizing a material into the shaping material and supplying the shaping material to the first nozzle and the second nozzle; and
a control unit controlling the plasticizing device,
the plasticizing device comprising:
a drive motor;
a rotating unit driven to rotate about a rotation axis by the drive motor and having an end surface perpendicular to the rotation axis;
a barrel having a bottom surface facing the end surface of the rotating unit, and a heater; and
a material supply unit supplying the material between the rotating unit and the barrel, wherein
at the bottom surface of the barrel, a first communication hole through which the shaping material flows out to the first nozzle, a first groove part coupled to the first communication hole, a second communication hole through which the shaping material flows out to the second nozzle, and a second groove part coupled to the second communication hole are formed.
7. The three-dimensional shaping device according to claim 6 , wherein
the first nozzle and the second nozzle differ from each other in at least one of nozzle diameter and nozzle length.
8. The three-dimensional shaping device according to claim 6 , wherein
a valve mechanism is provided in at least one of a position between the first communication hole and the first nozzle and a position between the second communication hole and the second nozzle.
9. The three-dimensional shaping device according to claim 6 , wherein
a nozzle diameter of the first nozzle is smaller than a nozzle diameter of the second nozzle, and
a cross-sectional area of the first groove part is smaller than a cross-sectional area of the second groove part.