Package making – Closing packages and filled receptacles – Separate closure applying
Patent
1980-10-14
1983-03-01
Culver, Horace M.
Package making
Closing packages and filled receptacles
Separate closure applying
B65B 728
Patent
active
043751440
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to an apparatus for mounting lids on containers of different types, for example cans, pails etc.
THE STATE OF THE ART
In prior art installations for filling containers, for example pails, cans etc of plastic or similar material, the sealing of the containers is effected by means of some suitable type of lid. In most cases, it desirable that the lid be of such a type as can later be removed and remounted in place for optional opening and closing of the container. In many prior art installations for filling containers, for example plastic pails, with paint and the like, a lid is positioned on the container at one station in the installation and the container is then conveyed with the loosely positioned lid to another station in the installation where it is pressed into place on the container.
Primarily, the movement of the containers with a loosely-positioned lid from one point to another before the container is finally sealed with the lid entails many problems. During this movement operation, the position of the lid may change, which demands a centering of the lid before the final pressing operation, and the contents of the container can splash up onto the edges between the lid and the container and thereby render final, tight sealing and subsequent opening and closing more difficult. One object of the present invention is to realise a lid mounting apparatus in which the above-outlined problems are obviated. A further object is that it should be possible for such a lid mounting apparatus to be utilised for several different lid dimensions without requiring too extensive alterations and operational down-time.
SUMMARY OF THE INVENTION
The above-mentioned objects of the present invention are attained in the apparatus disclosed by way of introduction which is characterised in that a lid magazine or store is located above a container hoist, that first means are disposed between the lid magazine and the container hoist for separating one lid from the lid magazine and retaining the remaining lids in the magazine, while the separated lid is downwardly released, and second means which, after the downward release of the separated lid, are moved into its path of movement and form a bottom in the lid magazine, and an abutment against which the container with the separated lid is pressed by means of the container hoist for finally mounting the lid.
In a lid mounting apparatus according to the present invention, a container need not be laterally shifted, the lid being instead positioned on the container and pressed onto the container without any lateral shifting of the container whatsoever. Since both the mounting and pressing of the lid take place in one and the same station in which the filled container is hoisted up to the lid and forced thereinto, all parts which are dependent upon lid and container dimensions in the lid mounting apparatus are reduced to a minimum and, thereby, alterations for adaptation to different lid and container dimensions can be effected very rapidly, since few adjustments in the apparatus are required.
DESCRIPTION OF THE ACCOMPANYING DRAWINGS
One embodiment of the present invention will be described in greater detail below with reference to the accompanying drawings.
FIG. 1 illustrates a schematic side elevation of one embodiment of an apparatus according to the present invention.
FIG. 2 is a schematic top plan view of a fundamentally similar apparatus to that of FIG. 1, a number of the parts shown in FIG. 2 having been omitted from FIG. 1 for purposes of clarity.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
The embodiment, shown on the drawings, of an apparatus according to the present invention has a frame with four corner posts 1, 2, 3, and 4. The corner posts 1-4 extend upwardly from a substrate 5 and support, a distance above the substrate, a table-like platform 6 with an opening 8 for a plate 9 of a container hoist which, in principle, consists of a piston and cylinder assembly 10. The piston and cylinder assembl
REFERENCES:
patent: 1050788 (1913-01-01), Baltzley
patent: 1233468 (1917-07-01), Heath
patent: 2050895 (1936-08-01), Petersen
patent: 2088010 (1937-07-01), Petersen
patent: 3864898 (1975-02-01), West
patent: 3905178 (1975-09-01), West
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