Material or article handling – Device for emptying portable receptacle – Rotary cradle
Patent
1981-11-16
1984-09-11
Sheridan, Robert G.
Material or article handling
Device for emptying portable receptacle
Rotary cradle
294 90, B04B 1104
Patent
active
044707444
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to an apparatus for taking hold of, lifting, transporting and putting down centrifuge drums of mechanically loaded and unloaded centrifuges for clearing oil and water therefrom, and washing, drying and other processing of pieces of material in industry, having a traveling hoist, able to be moved between at least two stations and supporting a lifting and lowering system, on whose end, which can be run out into a working position, there is a gripper for gripping such a centrifuge drum near its top edge.
An apparatus on these lines is known in the prior art, see German Offenlegungsschrift specification No. 2,030,591.
In the known apparatus for processing pieces of material in industry a centrifuge, whose centrifuge drum may be lifted out of position, has a loading station and an unloading station. In the loading station the centrifuge drum is loaded with the material to be processed, whereas in the unloading station the centrifuge drum, full of the processed material, is placed on a tipping system in which the centrifuge drum may be turned, for example through 180.degree., so that the processed material may be put in a box. The apparatus for taking hold of, lifting and transporting the centrifuge drum, for this reason takes up a drum full of the material to be processed, puts it down in the centrifuge, then takes up the unloaded centrifuge drum in the unloading station and puts it into the loading station, so that when its turn comes it may take up the drum processed in the centrifuge and put it down in the unloading station.
The apparatus of this earlier invention has the shortcoming however that the unloading of the centrifuge drum is only possible in the tipping unit in the unloading station. In the trade however it is frequently best for the centrifuge drums, full of processed material, to be unloaded at different positions, and for example unloading at different, desired positions may be necessary and different sorts of pieces of material are processed in the trade or pieces of material of one single sort are to be differently processed.
SUMMARY OF THE INVENTION
One object of the invention is that of overcoming the shortcomings of the known apparatus and that of designing an apparatus which makes it possible for centrifuge drums to be unloaded at any desired points on a transport path.
Taking as a starting point an apparatus of the sort noted, for effecting this purpose in a frame, joined up with the traveling hoist, there are two gripping shoes, which are placed opposite to each other and able to be moved radially in relation to the drum so as to be partly round it, the shoes being bearinged in the frame so that they may be turned about an horizontal axis, at least one of the shoes having a driving system for turning it.
Using the apparatus of the present invention it is now possible not only for one centrifuge drum to be taken hold of, or put down, in the separate stations of a processing plant, but it is furthermore possible for it to be tilted at any desired stations so that the centrifuge drum may be unloaded at different points. With the help of the apparatus of the present invention it is however furthermore possible for the centrifuge drums to have the load in them changed or however, furthermore, if there are trouble conditions because a load is out of balance, for the material to be changed in position within the drums.
It is best for the centrifuge drum to have at least one outwardly running gripping ring round it and the gripping shoes may have a narrow opening for taking up the gripping ring. If the centrifuge drum taken hold of by the gripping apparatus, is lifted by the lifting and lowering unit into a given position, the gripping shoes may be moved radially in relation to the drum so that the gripping shoes are placed around a part of the gripping ring so that the centrifuge drum is tightly gripped. The gripping unit on the lifting and lowering unit may then be opened so that, by turning one gripping shoe the centrifuge drum ma
REFERENCES:
patent: 3438510 (1969-04-01), Fawell
patent: 3670912 (1972-06-01), Dunbar
Holpp Werner
Steimel Richard
Sheridan Robert G.
Striker Michael J.
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