一种销钉型螺旋推进式注塑装置塑化结构

Pin-type plasticizing structure of spiral propulsion injection molding device

Abstract

The invention discloses a pin-type plasticizing structure of a spiral propulsion injection molding device. The plasticizing structure comprises a front body, a screw head, a check ring, a check pad, a screw, a cylinder, a fixing device, and the like. According to existing injection molding device plasticizing structures, mixing rings are commonly used for carrying out preliminary mixing and stirring upon plasticizing raw materials, such that two or more raw materials can be uniformly mixed to achieve a color mixing effect, and certain plasticization effect can also be achieved. However, because the mixing ring is positioned between the screw and the cylinder, when the screw rotates under the driving of a motor, greater energy is needed for overcoming the friction forces between the screw, and the check ring, the check pad and the mixing ring. The invention provides a novel plasticizing structure, in which a pin is used for replacing the mixing ring, such that a purpose of friction force reducing is achieved.
本发明公开了一种销钉型螺旋推进式注塑装置塑化结构包括:前体、螺杆头、止回环、止回垫、螺杆、机筒及固定装置等。现在的注塑装置塑化结构中常用混炼环对塑化原料进行初步的混合搅拌,使两种或几种原料均匀的混合在一起达到混色的作用,也能起到一定的塑化作用,但由于混炼环位于螺杆与机筒之间,当螺杆在电机带动下旋转所需的更大的能量来克服与止回环、止回垫及混炼环之间的摩擦力。本发明提供了一种新的塑化结构,用销钉代替混炼环达到减少摩擦力的目的。

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Cited By (1)

    Publication numberPublication dateAssigneeTitle
    CN-102700059-AOctober 03, 2012无锡天惠塑机有限公司Non-return ring for injection molding machine