| 摘要 |
PURPOSE:To cause an injection molding machine to be compact, while achieving all the transportation and rotation of a screw by using rotating force of a motor by fixing a screw moving member capable of advancing and retracting by the rotation by a screw shaft, rearward of said screw. CONSTITUTION:One clutch 38 of two electrically operated clutches 38, 39 is connected and the other clutch 39 is released. A screw 20 is rotated by way of a shaft 34, a transmitting gear 36 and a rotary gear 26, rotating a motor 41 reversely, whereby molten resin is sent off. The screw 20 is returned rearward by the reactive force due to transporting the resin, and pushes a screw moving member 25, whereby a screw shaft 30 operates a brake device 34 and controls its rotating force. After the finishing of measurement, the clutch 38 is released and the clutch 39 is connected. Then, the motor 41 is regularly rotated, and the screw shaft 30 is rotated by way of the gears 37, 31. The screw 20 is advanced by moving the screw moving member 25 left, whereby the molten resin is injected. |
