(Design of the Cylindrical bush Injection Mould)
Abstract
The properties of the PA1010 plastics and their influences to the moulding technology are analyzed. The structure and working process of the cylindrical bush injection mould are introduced.And the dimension calculations for some key components of the mould are stated.Thestructure of the injection mould for the cylindrical bush has been determined according to it’s characteristics . The design of the mould structure is smart and the operation of the mould is easy. The plastic parts moulded with the mould have reached the required dimension precision .
According to the difficulty in the plastic part demoulding process ,an injection mould with non-tradional core-pulling mechanism has been designed. And some key points in design and manufacture of the mould are stated in detail. Since the mould requires core-pulling on three directions ,various side parting mechanisms have been used and one of them is mainly introduced .The feed system and the ejector mechanism are briefly introduced .
Practices show that the mould are design is reasonable and the mould movement is reliable. It can serve as a reference to the design of the moulds for similar parts.
Key words:PA1010plastic;injection mould; design;
Cylindrical bush;core-pulling;side parting.