| 摘要 |
PURPOSE:To contrive universal adjustment control of an advance motion speed of a screw of an injection molding machine, by a method wherein turning force of a servomotor is converted into a linear motion by a specific mechanism of a screw shaft and screw holding member. CONSTITUTION:A servomotor is turned, a clutch mechanism 41 is actuated through a driving belt 43 and a transmission gear 39 is turned along with a transmission shaft. With this construction, a screw shaft 30 is turned along with a gear 29 and a screw holding member 25 is moved forward with a lead of a screw. Since the screw holding member 25 is born by an extended shaft 27 of a rear end of the screw, also that screw 20 is moved forward along with the extended shaft 27 and performs injection. Since the title device is constituted so that forward movement of the screw 20 is performed by converting turning force of the servomotor into linear motion by a mechanism consisting of a screw supporting member 28 and screw shaft 30, torque control and speed control covering a wide area become possible. |
