Conveyors: power-driven – Conveyor having impinging fluid to feed – shift or discharge... – Having cleaning means
Patent
1979-03-08
1981-07-28
Nase, Jeffrey V.
Conveyors: power-driven
Conveyor having impinging fluid to feed, shift or discharge...
Having cleaning means
198494, B65G 4500
Patent
active
042806160
ABSTRACT:
The cleaning of conveyor belts has been a problem since their widespread acceptance and the adoption of belts for the transporting of materials. Many materials so conveyed have a tackiness and/or an affinity or attraction for the outer surface of a conveyor belt. When this attraction occurs, the cleaning or removal of this material from the surface of the belt is a problem. Many methods have been 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 the lower belt extent. This apparatus is carried on the under and inner side of the conveyor belt so that a 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 resonant roller and/or scraper in contact with the outer surface whereby any residual material on the exterior of the belt is loosened and knocked free by means of the localized vibrations. 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. A resonant vibration is induced into the lower extent of the belt by providing a vibrated resonant roller and/or scraper which in most cases engages the outer surface of the belt near the discharge roller. The main vibrated roller is a short distance further from the discharge roller and engages the inner surface of the belt. The vibratory unit induces vibrations in both the inner roller and the resonant roller and/or scraper.
REFERENCES:
patent: 2647619 (1953-08-01), Green
patent: 2885069 (1959-05-01), Bowen
patent: 3047133 (1962-07-01), Searles
patent: 3802554 (1974-04-01), Paulsen et al.
patent: 4042102 (1977-08-01), Wadensten
Nase Jeffrey V.
Roberts Ralph R.
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