Granulating device for strand materials
AssigneeRieter Automatik GmbH
InventorsPeter Locker, Walter Pirrung
Life of this patent
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Abstract
The invention relates to a granulating device for strand materials comprising a pull-in device for feeding the strand material, conducted through an inlet shaft, and transporting it to a knife roll for cutting up the strand material into granulate, said pull-in device having a pull-in roll, and a counter-roll, of which rolls at least one is driveable and both form a inter-roll gap for pulling-in the strand material. A proximity-type switching element is disposed in the region of the inlet shaft, particularly in front of the entrance thereof, said proximity-type switching element raising, when actuated, the setting of the inter-roll gap and increasing the inter-roll gap to such a width that the further pulling-in of the strand material is abruptly stopped.
Claims12
A granulating device for strand materials (13) comprising a pull-in device for feeding said strand material (13) conducted through an inlet shaft (9) and transporting it to a knife roll (5) for cutting up said strand material (13) into granulate, said pull-in device having a pull-in roll (8) and a counter-roll (7), of which rolls (8, 7) at least one is driveable and both form an inter-roll gap (16) for pulling in said strand material (13), characterized in that a proximity-type switching element actuatable in response to approach of a human body part (14, 15;
- 25) is disposed in the region of the inlet shaft, particularly in front of the entrance (29) thereof, said proximity-type switching element (14, 15;
- 25) being operable to cancel, when actuated, the setting of the inter-roll gap (16) and increase the inner-roll gap (16) to such a width that the further pulling-in of said strand material (13) is abruptly stopped.
Dependencies are inferred from the claim text.