Method and apparatus for processing of plastic material

Details Method and apparatus for processing of plastic material Method and apparatus for processing of plastic material

B - Operations, Transporting

29

B

B29B 13/10 (2006.01) B29B 17/00 (2006.01)

Patent

CA 2694340

The invention relates to an apparatus and a method for the processing of plastic material, with a receptacle or cutter-compactor (1) into which the material to be treated can be introduced, in the lower region of which a discharge opening (10) is provided, through which the processed material can be ejected from the receptacle (1), for example into an extruder (11). According to the invention, the receptacle (1) is divided into at least two chambers (6a,6b,6c,... ) separated from each other by an intermediate base (2',2",..., wherein at least one mixing or comminution tool (7a,7b,7c,... ) is arranged which acts upon the material in each chamber (6a,6b,6c,...), with which the material can be converted into a softened but permanently lumpy or particle-shaped and not melted state and wherein means (5',5",... ) are provided which effect or permit an exchange or a transfer of the softened, lumpy, not melted material between each directly adjacent chamber (6a,6b,6c,...).

L'invention concerne un dispositif ainsi qu'un procédé de traitement de matériau synthétique. Ledit dispositif comporte un bac de collecte ou compresseur de broyage (1) dans lequel le matériau à traiter peut être introduit et dans la zone inférieure duquel se trouve un orifice d'évacuation (10) permettant l'évacuation du matériau traité hors du bac de collecte (1), par exemple dans une extrudeuse (11). Selon l'invention, le bac de collecte (1) est divisé en au moins deux chambres (6a,6b,6c,...) séparées chacunes par un fond intermédiaire (2',2",...). Dans chaque chambre (6a,6b,6c,...) se trouve au moins un outil mélangeur ou broyeur (7a,7b,7c,...) agissant sur le matériau, grâce auquel ledit matériau peut être amené dans un état ramolli mais constamment sous forme fragmentée ou particulaire et non fondu. Ledit dispositif comporte également des moyens (5',5",...) qui assurent ou permettent un échange ou un transfert du matériau ramolli fragmenté non fondu entre les chambres immédiatement voisines respectives (6a,6b,6c,...).

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