| 摘要 |
PURPOSE:To enable the selective supply of a synthetic resin material without ceasing operation of an extruding machine by positioning a resin fluidity control valve to a destruction position in the case of preventing a synthetic resin material to a molding mold from supplying and positioning resin fluidity control valve to a supplying position in the case of supplying to respective molding molds. CONSTITUTION:The control valve positioning means 122 of resin material supplying means 52 serve to position a conically trapezoid valve material 118 selectively to a supplying position and destruction position. At the supplying position, the inlet conduit 110 and supplying conduit 112 a communicated with respect to each other via the communication groove 120 of the conically trapezoid valve part 118, and heated molten synthetic resin is fed to the resin flow conduit 102 of an extrusion block 96 and then supplied from discharging port 100 to the molding mold of a compression molding means 46. On the other hand, at a destruction position, the inlet conduit 110 and destruction conduit 114 are made to communicate with each other and thus the heated molten synthetic resin is discharged from a discharging pipe 116. According ly, the track of the resin material advanced from the discharging port of a gear pump 92 to the inlet conduit 110 is not blocked even temporarily. |
