Apparatus for producing laminated articles from thermoplastic material.

摘要

In a method for producing laminated plastic articles consisting of a base layer of thermoplastic material and at least one cover layer 7, flowable thermoplastic material 12 is compression-moulded as base layer between a lower 2 and an upper 5 mould-half with the cover layer laid in between the mould-halves. In order to prevent the mould cavity constantly changing during the compression-moulding of the flowable thermoplastic material or the melt and correspondingly the melt having to change its flow direction again in certain mould sections, which can result in undesired folds and distortions during compression- moulding with the cover layer, it is proposed first to move the mould- halves together as far as their end position, with the interposition of the cover layer and with the inclusion of the mould cavity representing the finished base layer. Subsequently, the compression- moulding operation is carried out in such a manner that a partial piece, representing a displacement body 9, of the lower mould-half 2 is pressed from a lowered position, in which a recess 11 receiving the melt is formed, by means of a lifting piston 10 into an upper position, in which the surface of the displacement body essentially flush with the mould surface of the lower mould-half.