CPC B29C 64/35 (2017.08) [B29C 64/393 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 40/00 (2014.12); B33Y 50/02 (2014.12); B29C 64/118 (2017.08)] | 13 Claims |
1. A three-dimensional shaping device comprising:
an ejection unit that is provided with a nozzle and a plasticizing mechanism configured to plasticize a plasticizing material to generate a shaping material and that is configured to eject the shaping material from the nozzle;
a stage on which the shaping material is stacked;
a drive unit configured to change a relative position between the ejection unit and the stage;
a cleaning mechanism provided with a brush and a blade; and
a control unit configured to execute a cleaning processing of cleaning the nozzle and control the ejection unit and the drive unit to stack a layer on the stage, wherein
the brush and the blade are disposed at a height at which the brush and the blade are contactable with the nozzle,
the brush and the blade have a melting point higher than a plasticizing temperature of the plasticizing material and a hardness lower than a hardness of the nozzle,
the control unit executes a cleaning operation of bringing at least one of the brush and the blade into contact with the nozzle by causing the nozzle to reciprocate in a manner in which the nozzle crosses the cleaning mechanism for a plurality of times in the cleaning processing,
the control unit causes the nozzle to reciprocate such that the nozzle comes into contact with the brush or the blade at different positions in the cleaning operation,
the control unit records at least one of material information on a type of the plasticizing material, a cumulative ejection amount of the shaping material ejected from the nozzle, and a use time of the nozzle in association with the nozzle,
the control unit controls a cleaning frequency of cleaning operations or an interval between two cleaning operations based on the material information, the cumulative ejection amount, or the use time of the nozzle, the use time of the nozzle being a total time during which the shaping material is ejected from the nozzle,
wherein each of the brush and the blade extending along a first direction so that the brush and the blade are parallel to each other and face each other along a second direction perpendicular to the first direction, and
the control unit is configured to: cause the nozzle to reciprocally move several times along a zigzag path in the cleaning operation when viewed along a third direction perpendicular to the first and second directions such that the nozzle passes from a side of the blade toward a side of the brush to contact a first point of at least one of the brush and blade, and the nozzle passes from the side of the brush toward the side of the blade to contact a second point of at least one of the brush and the blade, the first point and the second point are different positions in the first direction.
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