Conveyors: power-driven – Conveyor for changing attitude of item relative to conveyed... – By conveying randomly faced items and turning items to...
Patent
1987-09-30
1989-07-04
Valenza, Joseph E.
Conveyors: power-driven
Conveyor for changing attitude of item relative to conveyed...
By conveying randomly faced items and turning items to...
198396, 198443, 198580, 198771, B65G 4724
Patent
active
048442402
DESCRIPTION:
BRIEF SUMMARY
PRIOR ART
The invention is directed to a device for storing small articles and conveying the latter in an orientated manner. In a known device of this generic type, the small articles which are rejected in the orientation conveyor are returned practically along the entire length of the slope conveyor. Above a determined conveying speed of the slope conveyor, there is a tendency in this device for a circulation pile-up of small artic-es to be formed in the transition area between the slope conveyor and the orientation conveyor, the circulation pile-up is limited to this area and then also obstructs the passage of the small articles into the orientation segment if no back-up has formed there.
ADVANTAGES OF THE INVENTION
In contrast, the arrangement, according to the invention, comprising the characterizing features of the main claim, has the advantage that small articles are returned from the orientation conveyor in a defined area on the slope conveyor, the area being so far removed from its higher starting area that no circulation pile-up, which takes place in some areas and obstructs the access of the small articles to the continuing orientation segment, can form there or in the feed area of the orientation conveyor.
It is particularly advantageous if, the small articles rejected in the orientation conveyor are discarded on the feed area of the slope conveyor in a determined manner. The formation or maintenance of a pile-up in the slope conveyor is accordingly concentrated in its feed area and the pile-up breaks up when conveyed to the output area, so that an (intermediate) storage function can also be assigned to the slope conveyor without impairing the orderly supply of small articles to the orientation conveyor.
A simple construction, in which the small articles are rejected from the orientation conveyor without jamming, follows from the constructional features.
The area of use of the device can be enlarged if the return segment has its own drive and/or if the run-off of the orientation conveyor is constructed as a buffer segment which is connected with the orientation segment without interfaces.
The concentration of the pile-up formation on the feed area of the slope conveyor and the suitability of the latter as a secondary or intermediate storage is supported and improved in an effective manner, according to claim 8, if a deflecting segment for small articles which are forced out laterally is provided adjacent to the conveying segment of the slope conveyor so as to be parallel with it, the deflecting segment being preferably located in the same slant plane, its surface and drive being adapted to the nature of the small articles in such a way that the latter arrive back at the feed area of the slope conveyor from the deflecting segment. The deflecting segment provides that small articles do not jam in a crosswise manner relative to the conveying direction and that the pile-up breaks up in a reliable manner along the conveying segment so that the small articles are already extensively separated when they arrive in the output area of the slope conveyor.
The angle of inclination of the slope conveyor be at least large enough so that small articles lying on top of one another slide off of one another where the possibility of deflection exists and at least when the drive is running. Tests have shown that by means of this invention a device can be provided in which the conveying capacity can be varied within wide margins without a loss of operating reliability. Accordingly, there results a particularly large area of application of the device and a good adaptability to layout variants of assembly stations and systems.
If the slope conveyor is constructed as an oscillating conveyor, the storage container can be rigidly coupled with the slope conveyor, so that there is no need for a storage container with a moving base surface to have its own drive.
The device, according to the invention, can be further simplified if, the storage container is arranged above the conveying segment of the slope conveyor.
DRA
REFERENCES:
patent: 3841471 (1974-10-01), Mead
patent: 4175654 (1979-11-01), Lodge
patent: 4282965 (1981-08-01), Bates et al.
Hutter Odo
Jung Rainer
Kurz Werner
Sperr Gerhardt
Voss Jurgen
Robert & Bosch GmbH
Striker Michael J.
Valenza Joseph E.
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