Plasticized material supply device and three-dimensional shaping device

A three-dimensional shaping device comprising:

• a plasticizing assembly configured to plasticize first and second materials to form first and second plasticized materials, respectively;
• a stage including a shaping region on which the first and second plasticized materials are selectively deposited;
• a discharge head configured to selectively discharge one of the first and second plasticized materials toward the shaping region;
• a motor configured to move the discharge head relatively to the stage;
• a memory configured to storer a program and shaping data, the shaping data including a movement path of a nozzle with respect to the stage, an amount of one of the first and second plasticized materials to be discharged from the nozzle, and a shape of each of a plurality of shaping layers constituting a three-dimensional shaped object;
• and
• a processor configured to execute the program using the shaping data, wherein
• the discharge head includes:
• a first material supply supplying the first plasticized material;
• a second material supply supplying the second plasticized material different from the first plasticized material;
• the nozzle including a nozzle opening and configured to discharge one of the first and second plasticized materials toward the stage;
• a first flow path through which the first plasticized material flows;
• a second flow path through which the second plasticized material flows;
• a junction at which an end of the first flow path and an end of the second flow path meet;
• a third flow path that is located between the junction and the nozzle, communicates with the nozzle opening, and through which one of the first and second plasticized materials flows;
• a flow rate adjusting assembly provided at the junction, the flow rate adjusting assembly having a butterfly valve, a drive shaft connecting the butterfly valve, and a motor configured to rotate the drive shaft, the motor being configured to move the butterfly valve so as to:
• switch between a first state and a second state, only the first plasticized material flowing in the first state, only the second plasticized material flowing in the second state;
• and
• adjust a discharge amount of a corresponding one of the first and second plasticized materials from the nozzle,
• the processor is further configured to execute the program using the shaping data so as to:
• cause the motor to rotate the drive shaft such that the butterfly valve is located at a first position as the first state;
• and
• cause the motor to rotate the drive shaft such that the butterfly valve is located at a second position as the second state, and
• an extending direction of the drive shaft of the flow rate adjusting assembly intersects an extending direction of the third flow path.