Rotary roll type extruder

Details Rotary roll type extruder Rotary roll type extruder

B - Operations, Transporting

29

C

18/728

B29C 47/32 (2006.01) B29C 47/08 (2006.01) B29C 47/52 (2006.01)

Patent

CA 1307636

Abstract A rotary roll type extruder which performs shaping of material to be extruded such as raw rubber or the like by ejecting the material to be extruded through a mouth piece by means of an extruding roll. This extruder comprises mouth piece moving means for moving a mouth piece in a radial direction of an extruding roll to make the mouth piece approach to or separate from the circumferential surface of the extruding roll, mouth piece positioning means for positioning the mouth piece under the condition where the mouth piece is held apart from the extruding roll, and mouth piece stocking means for preliminarily stocking various kinds of mouth pieces. Shaping of the material to be extruded is effected under the condition where the mouth piece has been brought close to the circumferential surface of the extruding roll by the mouth piece moving means and it has been positioned by the mouth piece positioning means, but upon exchange of the mouth piece, the mouth piece is separated from the extruding roll by the mouth piece moving means and is exchanged with one of the mouth pieces stocked in the mouth piece stocking means, and thereafter the new mouth piece is brought close to the circumferential surface of the extruding roll by the mouth piece moving means and is positioned by the mouth piece positioning means. The mouth piece exchange work is executed automatically without the aid of human labor at all.

593707

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