| 摘要 |
<p>Device for producing a plastic mesh consisting of an assembly of parallel longitudinal strands (L1, L'1, L"1) and of at least one assembly of transverse strands (L2, L'2, L"2, L"3). It comprises a stationary die element (1, 8, 12) and at least one movable die element (2, 9, 13) arranged concentrically and driven in a vertical rotational or oscillating movement, the stationary die element having a plurality of peripheral serrations (4, 10, 14) confronting an annular slit (3) defined periodically between the die elements and respectively serrations (11, 15) provided in the movable die element or elements, and a shaper (5) which is arranged concentrically relative to the die elements and the diameter of which is larger than that of the die elements at their lower end, and is characterised in that the shaper (5) comprises, on its surface (6) in contact with which passes the mesh (G) formed between the die elements (1, 2), a plurality of serrations (7) of which the structure and number correspond to those of the serrations (4) provided on the stationary die element (1). <IMAGE></p> |
