Abrading – Machine – Tumbling device
Reexamination Certificate
1995-11-16
2001-08-21
Morgan, Eileen P. (Department: 3203)
Abrading
Machine
Tumbling device
C451S328000, C451S032000, C451S035000
Reexamination Certificate
active
06277011
ABSTRACT:
BACKGROUND OF THE INVENTION
In known polishing devices with conveyor belt drive, the polishing medium is placed in rotation in a pan-shaped polishing trough by means of an endless conveyor belt. This conveyor belt slides on the round wall of the polishing trough, which in turn is located in a tightly closed water container, which simultaneously serves as the machine frame. The conveyor rollers necessary for the conveyor belt are supported outside on the water container.
This construction has on the one side the disadvantage that the products to be polished must be collected carefully by hand after the polishing process, which requires a great deal of time, especially for small parts such as cutlery or pieces of jewelry. Furthermore, when the polishing medium is changed, the polishing bodies must be removed manually from above with small buckets. On the other hand, the previous construction offers the user no access behind and below the polishing trough for periodic cleaning of the water container, where soap residues and other contamination inevitably form. Furthermore, a conveyor belt can be changed only by disassembling the polishing trough and the conveyor rollers. An equally great disadvantage of this construction is the relatively high requirement for soap solutions and their disposal.
SUMMARY OF THE INVENTION
The object of the present invention is to develop further the known polishing machine with conveyor belt drive so that these machines become substantially more operator-friendly and also more maintenance-friendly.
In order to solve this task, the invention is characterized in that a semicircular basket equipped with two handles and matched in diameter to the polishing trough has been provided in the polishing trough, which basket serves for collecting the products to be polished and/or the polishing medium.
In an additional embodiment, instead of a basket it is planned to use a semicircular cage closed on all sides and matched in diameter to the polishing trough, where the cage is used especially to separate the products to be polished from the polishing medium.
In order to make possible quick access and especially easy replacement of the conveyor belt, it is provided that the conveyor rollers rotating on the backing side of the conveyor belt are supported on a carrier profile of the stationary, pan-shaped polishing trough.
One advantage of the polishing machine according to the invention is that by using a basket or a cage after completion of the polishing process the material to be polished can be separated from the polishing medium in a simple and quick way.
Furthermore, the advantage is that the polishing medium remaining in the polishing trough can be removed quickly and simply from the polishing trough, and it is even possible to sort out the polishing medium according to the size of the bodies to be polished.
An additional advantage is that quick access to the inside of the machine and a low consumption of polishing solution is achieved.
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patent: 1934528 (1969-07-01), None
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Brown Martin Haller & McClain LLP
Morgan Eileen P.
LandOfFree
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