Manufacturing method for a plastic element

Abstract

The present invention relates to a method and a mould for manufacturing plastic element as well as a plastic element having oppositely arranged eye parts where oppositely one eye part in relation to a substantially centrally placed stem is arranged a recess on the opposite side, where the manufactured plastic elements for example are chain links or a conveyor belt, and where the mould comprises two mould halves, where each part comprises protruding core parts and further a plastic element manufactured by the mentioned method of manufacture in the mentioned mould, where in the eye parts are provided through-going openings in the chain links with respect to the travel direction. It is the object of the invention to simplify moulds and the molding process as well as reduce the requirements for the size of the molding machine. This is achieved by a method where the mould comprises two halves with offset and side placed core parts, which create recesses between side placed eye parts on one side and cavities on the oppositely arranged eye parts, where the ultimate ends of the core parts on one mould half is brought into contact with side places interior parts of the core parts on the other mould part by closing the two-part mould. In this manner, pin bolts which until now have shaped the openings in the third dimension become superfluous.

Dependencies are inferred from the claim text.