Package making – Methods – Group forming of contents into a unit
Patent
1996-01-16
1998-06-09
Moon, Daniel
Package making
Methods
Group forming of contents into a unit
53157, 53238, 53448, 53474, B65B 3554
Patent
active
057618828
DESCRIPTION:
BRIEF SUMMARY
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a national phase of PCT/IB95/00365 filed 16 May 1995 and based, in turn on Italian national application BO94 A 000216 of 16 May 1994 under the International Convention.
TECHNICAL FIELD
The present invention relates to a method of and an apparatus for automatically fitting longitudinal and/or transverse flat partition elements between arrays of articles that are continuously advanced, particularly in a packaging line of articles such as cans or bottles.
BACKGROUND ART
In the packaging field and, in particular, for the packaging of breakable articles, such as glass bottles, it is often required to insert longitudinal and/or transverse flat partition elements between the articles of a package to establish a plurality of cells each of which can contain a single article, so as to avoid contact and collision between the articles, keeping them safe, for instance, during the transport of the package.
Presently, several methods and apparatuses are know for the automatic insertion of said partition elements.
For example, the patent IT-927.943 discloses that the longitudinal and/or transverse flat partition elements can be introduced consecutively between the articles of a predefined group, and that the so obtained assembly of articles and partition elements can be subsequently packaged and bound in cardboard.
To make the insertion of the longitudinal and transverse partition elements easier, the articles of the group to be packed are placed in longitudinal and transverse ranks, the longitudinal ranks are temporarily spaced apart transversely and the transverse ranks are temporarily spaced apart longitudinally, so that the partition elements can slide from above downwards, preferably by gravity, between the spaced apart ranks.
The apparatus provided to implement the above mentioned method is essentially comprised of: a conveyor provided with thrust bars that extends from upstream to downstream of the apparatus, to make the separate groups of articles and to convey the groups downstream; a plurality of devices designed to insert the partitions, placed over the article conveyor and in sequence along the article conveying path, to allow the free fall or to throw downwards the partition elements; channel devices, to obtain the transverse displacement of the longitudinal ranks of the articles; and a further belt conveyor that is coplanar with the transport plane of the articles, which is designed to act in the operative area of the first conveyor and to successively speed up the transverse ranks of the articles so as to get a temporary spacing between the transverse ranks.
The apparatus of patent IT-1.154.364, essentially is comprised of: a multiple belt conveyor to transport the articles ordered in transverse and longitudinal ranks from upstream to downstream; an automatic fixed dispenser, placed upon the flow of the containers that advance longitudinally and designed for throwing transverse partition elements from above downwards; and a spacing device to temporarily space longitudinally the transversal ranks of the articles.
The spacing device essentially includes a plurality of transverse pegs moved along a closed ring path in a vertical orbit by a chain conveyor, in which the upper branch of the orbit includes the transport of the pegs between the containers according to the same longitudinal speed of these latter.
In the operation of this device, first the pegs insert between the containers from the bottom upwards and then, during the phase of driving back downwards the chains, they determine the spacing of the container transverse ranks. This is due to the fact that the upper ends of the same pegs, during this phase, define a greater path with respect to the one made by their base, that lies about on the same plane with the article bottoms.
A first drawback is that the longitudinal and transversal elements are inserted from above downward, by moving them down along vertical planes that are perpendicular to the flow of the articles, so as to require a
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Baumer S.R.L.
Dubno Herbert
Moon Daniel
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