| 摘要 |
<p>The subject of the invention is a machine for extruding plastic materials. It includes the assembly of four main parts: two inner parts, an upper 1 and lower 3 one, and two outer parts, an upper 4 and lower 5 one, the lower inner part 3 including two parts, the upper one of which is provided with triangular grooves which diverge outwardly and which mark the thickness of each elementary sheet, of different colours, of which the entire plastic sheet or panel to be obtained from this machine is to be composed. It finds an advantageous application in the production of such multicoloured plastic sheets or panels. <IMAGE></p> |
