Plasticizing device

Abstract

To provide a plasticizing device that can maintain the accuracy of pressure detection values. [Solution] The system includes a control unit that controls at least one of the plasticizing unit, pressure detection unit, suction discharge unit, and discharge amount adjustment unit, and the control unit strokes the plunger pin 220 at least before and after the fabrication of the molded object.

Claims

1. A plasticizing section that melts the molding material by heat to generate a plasticizable material, A channel through which the plasticizing material flows, A pressure detection unit having a cylinder connected to the flow path and a plunger pin slidably disposed inside the cylinder, for detecting the pressure of the plasticizing material in the flow path, A suction and discharge unit is connected to the flow path downstream of the pressure detection unit and sucks up the plasticizing material, A discharge volume adjustment unit adjusts the flow rate of the plasticizing material that has flowed through the aforementioned channel and discharges the plasticizing material from the nozzle to the stage, A control unit that controls at least one of the plasticizing unit, the pressure detection unit, the suction discharge unit, and the discharge amount adjustment unit, Equipped with, The control unit is a plasticizing device that strokes the plunger pin at least before and after the fabrication of the fabricated object.

2. A plasticizing apparatus according to claim 1, The control unit causes the plunger pin to stroke based on at least one parameter of the following: the speed of the plunger pin, the stroke amount of the plunger pin, and the number of strokes of the plunger pin.

3. A plasticizing apparatus according to claim 1, The control unit flows the plasticizing material through the flow path, and when the pressure detected by the pressure detection unit is below a threshold, the plunger pin is stroked, the plasticizing device.

4. A plasticizing apparatus according to claim 1, The control unit flows the plasticizing material through the flow path, and increases the torque of the motor that drives the plunger pin when the pressure detected by the pressure detection unit is below a threshold value.

5. A plasticizing apparatus according to claim 1, The control unit flows the plasticizing material through the flow path and continues to stroke the plunger pin until the pressure detected by the pressure detection unit exceeds a threshold value, thereby forming a plasticizing apparatus.

6. A plasticizing apparatus according to claim 5, The system includes a notification unit that notifies whether or not there is an abnormality in the pressure detection unit, The control unit flows the plasticizing material through the flow path, stops the stroke of the plunger pin when the pressure detection value exceeds a threshold, and notifies the notification unit that there is no abnormality in the pressure detection unit, in a plasticizing apparatus.

7. A plasticizing apparatus according to claim 1, The control unit performs a purging process to purge residual resin in the flow channel at least before and after the molding of the molded object, and strokes the plunger pin during the purging process, in a plasticizing apparatus.

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