Injection unit in injection molder
专利汇可以提供Injection unit in injection molder专利检索，专利查询，专利分析的服务。并且PURPOSE:To contrive to miniaturize motors by solving the problem of the heat load in case of driving an injection unit with the motor by a method where in motors exclusive for rotatary injection and for dwell are provided and both the screw spindle and the nut of a ball-screw type feeding mechanism are in dependently driven in rotation by means of two systems of gear type driving mechanisms, the driving sources of which are said motors, respectively. CONSTITUTION:Because a motor 13 for rotation and injection is driven clock wise and at the same time a clutch 27 is in engaged state, a screw spindle 8 in a ball-screw type feeding mechanism 7 is rotated clockwise through a driving mechanism 15 for injection and consequently a screw 4 together with a screw bracket 5 is advanced so as to fill molten resin in an injection heating tube 3 into a mold and at the same time to compress the resin. In addition, the driving system of the screw 4 is changed over just before the finish of injection process. Concretely, the clutch 27 of the driving mechanism 15 for injection is disengaged and a brake 28 is put into actuation. On the other hand, a motor 30 for dwell is driven so as to rotate a nut 9 in the ball-screw type feeding mechanism 7 through a driving mechanism 29.，下面是Injection unit in injection molder专利的具体信息内容。
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