Solid material comminution or disintegration – Apparatus – Cooperating comminuting surfaces
Patent
1980-01-14
1981-10-13
Goldberg, Howard N.
Solid material comminution or disintegration
Apparatus
Cooperating comminuting surfaces
271188, B02C 1822, B02C 1844
Patent
active
042944147
ABSTRACT:
A device for feeding sheet material into a granulator and particularly scrap plastic sheet material of the type wherein a plurality of such sheets are normally twisted together to form a composite rope which is fed between opposed feed rolls and subsequently into a granulation chamber. The present feed device includes a pair of cooperating rolls, each of which is provided with a plurality of longitudinally spaced, radially inwardly extending grooves. The grooves of each roll are adapted to mesh or interdigitate with a resultantly formed ridge on the opposing roll such that the sheet material fed therebetween is forced into a sinuous cross sectional configuration and subjected to differing roll surface velocities. Both of the above-described conditions imparted to the sheet material are believed to contribute to trouble free positive feeding especially when feeding individual, i.e. single sheet material thicknesses.
REFERENCES:
patent: 2843377 (1958-07-01), Battersby
patent: 2890840 (1959-06-01), Fletcher et al.
patent: 3550935 (1970-12-01), Smith et al.
patent: 3960334 (1976-06-01), Wudyea
patent: 4028779 (1977-06-01), Shah
patent: 4176796 (1979-12-01), Barnes et al.
Doherty Robert J.
Goldberg Howard N.
Leesona Corporation
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