Conveyors: power-driven – Conveyor for changing attitude of item relative to conveyed... – By actuating item-holder relative to holder-carrying conveyor
Patent
1988-05-06
1990-07-03
Spar, Robert J.
Conveyors: power-driven
Conveyor for changing attitude of item relative to conveyed...
By actuating item-holder relative to holder-carrying conveyor
1984761, 1984781, 1984701, 1988039, B65G 4724
Patent
active
049383370
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
This invention relates to an outfeed transfer apparatus for removing cans or like containers, or other articles, from a rotating turret as they are delivered by the turret to an outfeed station, and particularly to such a transfer apparatus for use in conjunction with an electro-coating apparatus.
CROSS-REFERENCES TO RELATED APPLICATIONS
The following concurrently-filled, co-pending U.S. patent applications claim other aspects of the electro-coating apparatus referred to hereinbelow: Ser. Nos. 07/193,451; 07/193,452; and 07/193,454, now U.S. Pat. No. 4,883,578, and all filed on May 6, 1988.
BACKGROUND ART
It is known to remove a can from a rotating turret by means of a rotating star wheel which is arranged so that adjacent prongs of the star wheel embrace the can and sweep it off the turret.
It is also known in the can conveying art to convey a can on a conveyor belt beyond a wheel or pulley around which the belt turns back on itself, and to cause such a can, when toppling off the end of the conveyor belt, to strike a bar mounted adjacent the wheel in such a way that the can lands upside down on a receiving surface.
In copending Ser. No. 07/193,452 filed May 6, 1988 there is described an apparatus for electro-coating cans. In that apparatus, each electro-coated can leaves a rotating, electro-coating turntable with a quantity of spent electrolyte contained therein, which electrolyte has to be emptied from the can into an electrolyte recovery channel before the can can proceed to a next production stage in which the electro-coating is cured and so hardened.
The present invention seeks to provide an apparatus for removing such electro-coated cans from the electro-coating turret, and for depositing them inverted on to a receiving surface, all without damaging the cans or the relative delicate, uncured electro-coating carried thereby.
One electro-coating apparatus embodying the present invention, and its method of operation, and various modifications of such apparatus and method (all according to the present invention), will now be described by way of example and with reference to the accompanying diagrammatic drawings.
DISCLOSURE OF THE INVENTION
According to the present invention, a transfer apparatus is characterised in that:
a transfer wheel comprises a hollow drum member comprising spaced upper and lower transverse walls and a peripheral side wall connecting them;
radial shafts are rotatably carried in said side wall with said gear pinions disposed within said drum member; and
gear racks are disposed within said drum member, and are slidably carried in said upper and lower transverse walls.
Preferred features of the present invention include the following. Such preferred features may be combined appropriately in accordance with the description given hereafter.
Said gear racks penetrate said upper transverse wall, and a fluid-tight protective cover is provided on said upper transverse wall to prevent ingress within said drum member of fluid from outside.
Said driving shaft extends upwardly through said lower and upper transverse walls and is drivingly connected to said upper transverse wall.
Said stationary support includes a stationary sleeve through which said driving shaft extends, and said upper and lower transverse walls are rotatably carried on said sleeve.
Said stationary support includes a base wall from which said stationary sleeve extends, and said base wall has a peripheral cylindrical side wall which cooperates in a fluid-tight manner with peripheral parts of said lower transverse wall to prevent ingress of fluid from outside.
Said first cam is carried on said stationary sleeve, and said second cam is carried on said base wall.
Said stationary sleeve connects with said base wall to define an annular oil reservoir.
An oil pumping sleeve encircles said driving shaft, is drivingly connected thereto, contacts said stationary sleeve internally, and has an oil pumping spriral groove facing the adjacent surface of said stationary sleeve.
Each said radial shaft is carried in a
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patent: 3127210 (1964-03-01), Schreiber
patent: 3175704 (1965-03-01), McCreery
patent: 3208579 (1965-09-01), Perrier et al.
patent: 3308928 (1967-03-01), Mosterd
patent: 3614958 (1971-10-01), Perrier
patent: 3710928 (1973-01-01), van Zijp
patent: 3995745 (1976-12-01), Chambers
patent: 4149623 (1979-04-01), Nelson
patent: 4172514 (1979-10-01), Shantz et al.
Harrison Robert H.
Jowitt Frederick W.
Pope Kevin J.
West Keith
Dayoan D. Glenn
Metal Box Public Limited Company
Spar Robert J.
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