MOULD FOR INJECTION MOULDING Russian patent published in 2011 - IPC B29C45/56 B29C45/14 B29C45/40 

FIELD: machine building.

SUBSTANCE: mould consists of injection cavity formed with first mould and second mould facing each other and of gate unit for pressurising moulding resin; gate unit is arranged in second mould. The mould also consists of a compression block reducing volume of injection cavity and compressing loaded moulding resin and of an external periphery plate positioned on external periphery of the compression block. An elastic body is located between the mould maintaining the compression block and the external periphery plate. There is also an ejecting pin pushing moulded item from the first or the second mould and an ejecting plate for firm maintaining the ejecting pin. The ejecting plate is held by means of an insertion of the pin for fixing the ejecting plate. Relative arrangement between the compression block and external periphery plate can be changed without changing relative arrangement between the external periphery plate and the ejecting pin.

EFFECT: avoiding deformation of moulded item due to maintaining its position in injection mould upon compression eliminating successive treatment of item.

7 cl, 17 dwg