Solid material comminution or disintegration – Apparatus – Comminuting surface provided with openings to permit...
Patent
1996-01-05
1997-11-18
Rosenbaum, Mark
Solid material comminution or disintegration
Apparatus
Comminuting surface provided with openings to permit...
241 881, 241 891, 241 893, 241 95, 241 99, 241240, 2412853, B02C 1800
Patent
active
056879210
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a device for reducing in size of particularly plastic objects. Such devices are already generally known and are often designated with the collective name of "shredders".
SUMMARY OF THE INVENTION
The invention has for its object to provide a shredding device with a decreased energy consumption and increased level of performance relative to the known devices. To this end the invention provides a device for shredding particularly plastic objects, provided with a substantially cylindrical housing in which at least one carrier member is rotatably mounted, wherein the housing has at least one opening arranged in one of its end surfaces for feeding objects for shredding and at least one opening arranged in its side surface for discharging shredded material, which discharge opening is bounded by cutting edge. In this device the products for shredding, after having been placed into the housing through the feed opening, are urged to the outside of the housing by the centrifugal force resulting from the rotation of the carrier member and subsequently pressed against the cutting edge of the discharge opening and thereby shredded. As a result of the movement of air in the housing the shredded material is ejected with force from the housing through the discharge opening. A clean cutting action is thus obtained whereby the energy required for the shredding is minimal and the performance level of the device maximal.
BRIEF DESCRIPTION OF THE DRAWINGS
Preferred embodiments of the shredding device according to the invention form the subject-matter of the dependent claims. The invention is now elucidated on the basis of two embodiments, wherein reference is made to the annexed drawing, in which:
FIG. 1 shows a partly cut away perspective view of a first embodiment of the shredding device according to the invention,
FIG. 2 shows a cross section through the device along the line II--II in FIG. 3,
FIG. 3 shows a longitudinal section through the shredding device depicted in FIG. 1, and
FIG. 4 shows a detail section corresponding with FIG. 2 of an alternative embodiment of the device according to the invention.
DESCRIPTION OF THE PREFERRED EMBODIMENT
A device 1 for shredding objects 2, in particular hollow plastic articles, is provided with a substantially cylindrical housing 3 in which a carrier member 4 is rotatably mounted. The housing 3 is formed by an upper surface 5, a lower surface 6 end a substantially cylindrical side surface 7. The upper surface 5 and the lower surface 6 are further connected by a number of mutually spaced strengthening rods 30. Arranged in the upper surface 5 is a feed opening 8 bounded by a ring 15 to receive the objects 2 for shredding. In addition, the housing 3 has in its side wall 7 a discharge opening 9 for shredded material 10 which is bounded by a cutting edge 11. Discharge opening 9 is slit-shaped and runs parallel to a generating line of the side wall. The discharge opening 9, which covers practically the whole height of housing 3, is formed by the housing 3 taking the form of a spiral with a diameter which increases from the cutting edge 11 in the rotation direction R of carrier member 4. The discharge opening 9 is covered by a hood 23 which intercepts the shredded material 10 flung with force out of housing 3.
The carrier member 4 is formed by a circular supporting disc 13 on which two anvils 12 are arranged with equal interspacing. Carrier member 4 has on its underside a shaft 21 on which a pulley 20 is arranged and driven rotatably by a motor 16, the output shaft 17 of which is likewise provided with a pulley 18. Three drive belts 19 stretch between the two pulleys 18, 20. Like housing 3, motor 16 is arranged on a support frame 22.
The anvils 12 are each substantially L-shaped in cross section and provided on their leading surface 29 as seen in rotation direction R with an exchangeable stop strip 27 fastened by bolts 28. The bolts 28 are received in slot-like apertures 31 of the striker strip 27, whereby the position of striker
REFERENCES:
patent: 2195879 (1940-04-01), Urschel et al.
patent: 2961024 (1960-11-01), Urschel et al.
patent: 3353755 (1967-11-01), Zimmermann
patent: 3989196 (1976-11-01), Urschel
patent: 4055099 (1977-10-01), Mitsubayashi
patent: 4648296 (1987-03-01), Wisdom et al.
patent: 4858834 (1989-08-01), Lanham
patent: 4972888 (1990-11-01), Dean
De Pecker N.V.
Rosenbaum Mark
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