Presses – Reciprocating press construction – With material depositing means
Patent
1983-04-14
1985-11-05
Reeves, Robert B.
Presses
Reciprocating press construction
With material depositing means
100233, 100902, 209557, 209599, 209699, 209930, B30B 1530, B07C 534
Patent
active
045506582
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a device for sorting packagings, principally beverage cans, in several stages and more precisely to a device incorporating two sections, one of which, the loader, is designed as both a loading member and a sorting member.
Sorting articles or goods according to such properties as size, shape, colour, material, density, etc. is known. In the case of sorting based on size or shape, the actual dimensions of the articles or goods form the basis of sorting.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a substantial rationalization of the handling of returned packagings such as beverage cans.
In a device according to the invention the packaging is received by a member, henceforth called the loader, which comprises both the loading member and the sorting member. The loader transfers the packagings to a second sorting stage in which they are subjected to a compressive force in order to permit continued sorting based on the degree and nature of the deformation and/or final shape thus given to each packaging.
The loader consists principally of at least two members arranged so as to be capable of moving relative to each other, which individually or in combination sort out, for transfer to the second sorting stage, every packaging having dimensions within a predetermined size.
The second sorting stage is located in a second part of the device, henceforth called the pressing section. In this section pressing members arranged to describe relative motion towards or away from each other subject the packagings to a compressive force. Packagings with given physical properties are thereby compressed to a size permitting them to pass through a dimension-determining opening and principally to a collecting device.
In one version of the invention specially adapted for cylindrically shaped packagings the loader is arranged with substantially vertical supports at a distance from each other slightly in excess of a certain established diameter of the packagings. Arranged at the lower ends of the supports are protuberances oriented towards the received packaging at a distance from each other slightly less than said established diameter. Packagings having the established diameter are carried by the loader on the protuberances and then mainly occupy the opening formed between them. Packagings having a diameter less than the distance between the protuberances are sorted out in that such packagings fall through the opening.
In another version of the invention, the supports are connected to each other at least at their lower ends to limit the length of the aforementioned opening. As a result, only packagings having a diameter less than the distance between the aforementioned protuberances and with a length less than the distance between the aforementioned connections drop through the opening.
Arranged in a preferred version of the invention is a frame through which the packagings pass on their way to the pressing section, i.e. to the second sorting stage. In connection with this, the frame comprises a second section of the loader and prevents the transfer of packagings having excessively large axial lengths and/or diameters to the second sorting stage.
In the pressing section, the loader interacts with the pressing members to place the packagings in the correct position in relation to these members, in which position the pressing organs make contact with the packagings in the course of their movement towards each other and compress them. The opening of the loading member has no protuberances in a limited area with the result that in this area the opening is larger as it is limited only by the vertical supports. This widening of the opening has a position which coincides mainly with the position assumed by the packagings after they have been compressed by the pressing members. In the case of a can-like packaging, for example, which has been compressed in its axial direction the compressed packaging will drop through the wider portion of the opening
REFERENCES:
patent: 2619150 (1952-11-01), Smith
patent: 2737995 (1956-03-01), Jennings
patent: 3062130 (1962-11-01), Huber et al.
patent: 3412675 (1968-11-01), Killough et al.
patent: 4265170 (1981-05-01), Schulze, Jr.
patent: 4436026 (1984-03-01), Imamura et al.
patent: 4454028 (1984-06-01), Vetter et al.
Reeves Robert B.
Wacyra Edward M.
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