Conveyors: power-driven – Conveyor having impinging fluid to feed – shift or discharge... – Having cleaning means
Patent
1976-06-09
1977-08-16
Blunk, Evon C.
Conveyors: power-driven
Conveyor having impinging fluid to feed, shift or discharge...
Having cleaning means
B65G 4500
Patent
active
040421023
ABSTRACT:
The cleaning of conveyor belts has been a problem since their widespread acceptance and adoption for the transporting of materials. Many materials so conveyed have a tackiness or an affinity for the outer surface of the belt of the conveyor. When this occurs the cleaning or removal of this material from the surface of the belt becomes a problem. Prior to the present invention scrapers, brushes and similar devices have been widely used for removing this material or residue adhering to the conveyor belt. In the present invention there is shown a vibration device which is attached so as to vibrate a roller. This device is carried on the under and inner side of the conveyor belt so that this vibration occurs shortly after the discharge of the material from this belt. Shortly after passing over the discharge roller the conveyor belt is brought in way of a vibrated roller whereby any residual material on the exterior of the belt is loosened and knocked free by means of the localized vibrations. Two embodiments are shown. In both embodiments the vibrator directly actuates the free-turning roller which is carried on the end of a pair of swinging arms. The weight of the vibrator and the roller is not excessive and is locally applied to the inner side and under extent of the belt. In one embodiment the vibrator is carried below the belt and the roller is carried on a bracket pivotally supported at the end of a pair of swining arms. In the other embodiment the roller and vibrator are both carried on a pair of swinging arms with the vibrator and roller within the confines of the upper and lower extents of the belt.
REFERENCES:
patent: 2873847 (1959-02-01), Holland
patent: 2885069 (1959-05-01), Bowen
patent: 3220540 (1965-11-01), Frontczak
patent: 3802554 (1974-04-01), Paulsen et al.
Blunk Evon C.
Nase Jeffrey V.
Roberts Ralph R.
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