| 摘要 |
<p>.The invention concerns an extruding device (1) for making a rubber mixture based product, comprising a rotary roller (5), an inlet (15) for said rubber mixture and a roof (6) circumferentially covering partly the surface (51) of the roller (5), the rubber mixture being delivered from the inlet orifice (15) into the air gap located between the roof (6) and the roller (5) towards an extruding orifice (21) defining the profile of the product, delimited by a wall (20) which co-operates with the outer surface (51) of the roller (5), the roof (6) bears on its inner surface oriented towards the roller projecting threads so as to delimit with the surface of the roller (51) a chamber for plasticizing the mixture, two at least of the threads extending substantially axially.</p> |
