초록 ▼

A granulating device for plastic compounds in which cutting knives of a cutting device face the die plate of a granulating head to form granules of plastic strings extruded from the die plate. The cutting knives are supported on a cutting shaft driven in rotation by a drive shaft of a drive motor. T

A granulating device for plastic compounds in which cutting knives of a cutting device face the die plate of a granulating head to form granules of plastic strings extruded from the die plate. The cutting knives are supported on a cutting shaft driven in rotation by a drive shaft of a drive motor. The cutting shaft is rotatably supported in fixed axial position in a housing. In order to obtain a planar parallel and central positioning of the cutting knives relative to the die plate, for example, due to thermal displacement, the housing and drive unit are guided together in a displaceable manner on guide shafts having first ends fixed to the granulating head and opposite ends which are vertically supported for universal pivotable movement in the manner of propped cantilever beams.

대표청구항 ▼

A granulating device for plastic material comprising a granulating head including a die plate from which plastic material is discharged as strands of plastic material, cutting knives disposed adjacent to said die plate for cutting the strands of plastic material to form granules therefrom, a drive m

A granulating device for plastic material comprising a granulating head including a die plate from which plastic material is discharged as strands of plastic material, cutting knives disposed adjacent to said die plate for cutting the strands of plastic material to form granules therefrom, a drive means secured to said cutting knives for driving the cutting knives in rotation about an axis to cut the plastic strands, frame means fixedly secured to said drive means, a pair of guide shafts having first and second ends, said guide shafts slidably supporting said frame means for displacement thereon parallel to the axis of rotation of the cutting knives to move the drive means and the cutting knives therewith towards and away from said die plate, means fixedly securing the first ends of said shafts to said granulating head, and support means supporting the second ends of said shafts at locations spaced from said granulating head, wherein automatic compensation of the position of the cutting knives and drive means relative to the die plate, due to displacement of the die plate caused by thermal expansion, is provided by guidance of the frame means on said guide shafts.