Patent ID: 8500433

Claim:
An extruder with a housing ( 1 ), which has at least one screw bore ( 11 , 12 ), which is located in the housing ( 1 ), with a longitudinal axis ( 7 ), a supply end located at a first axial end of the housing ( 1 ) a discharge end ( 9 ) located at a second axial end of the housing ( 1 ) and a supply opening ( 37 ) at the supply end, with a screw shaft ( 13 , 14 ) rotatably arranged in the screw bore ( 11 , 12 ), with a drive motor ( 15 ), with a gear ( 16 ), which is in drive connection with the drive motor ( 15 ), and has an output shaft ( 18 ) connected to the screw shaft ( 13 , 14 ), wherein a slide connection ( 24 ) is arranged between the housing ( 1 ) and the gear ( 16 ) in the direction of the longitudinal axis ( 7 ), wherein by means of the slide connection ( 24 ) thermally caused longitudinal expansions of the housing ( 1 ) are compensated for during start up of the extruder, wherein the slide connection ( 24 ) has an adapter ( 25 ), which has a screw bore portion ( 27 ) connected to the housing ( 1 ) and a bearing portion ( 28 ) facing the gear ( 16 ), wherein the screw shaft ( 13 , 14 ) projects into the screw bore portion ( 27 ) of the adapter ( 25 ), wherein in the region of the discharge end ( 9 ), which is downstream in a production direction ( 8 ), the housing ( 1 ) is fixed by a connection ( 10 ) in both a vertical direction and the direction of the longitudinal axis ( 7 ), wherein an attachment housing ( 21 ) surrounding the output shaft ( 18 ) is provided on the gear ( 16 ) and has a bearing opening ( 33 ) supporting the housing ( 1 ) transversely with respect to the longitudinal axis ( 70 ); and wherein the bearing portion ( 28 ) of the adapter ( 25 ) is displaceably supported in the bearing opening ( 33 ) in the direction of the longitudinal axis ( 7 ) thereby forming said slide connection ( 24 ).