Package making – Methods – With contents treating
Patent
1995-01-10
1997-04-15
Moon, Daniel
Package making
Methods
With contents treating
53116, 53118, 53429, 242528, 206390, 206554, B65B 6304, B65B 2514
Patent
active
056198400
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a delivery package for mad bags i.e., flexible intermediate bulk containers.
The invention also relates to a procedure for packing maxi bags to form delivery packages.
BACKGROUND OF THE INVENTION
In the state of an it is generally known in manufacturing paper bags to produce bag rolls of paper bags, i.e. paper bag delivery packages so that the finished paper bags placed overlappingly one on top of the other are rolled around a rolling core, and in the course of the rolling, i.e. in the course of forming a delivery package, the paper bag layers are tied with the aid of two continuous cords or hoops surrounding the bag roll.
The technique described above has also been used in packing plastic sacks into a delivery package.
Small bags have long been filled completely automatically. On the other hand, automatic filling of maxi bags has not been known in the state of art, even though automatic filling of maxi bags is technically possible. In order to succeed in filling automatically maxi bags, the maxi bags should be delivered to the users thereof in a precisely organized manner in one way or another, i.e. in a delivery package of a given type, so that the grip of a robot or a collector means is always able to find a subsequent maxi bag to be filled.
In maxi bags, particularly in maxi bags provided with gathered lifting loops, the gathered lifting loop structure generates a considerable thickening compared with the rest of the maxi bag structure. Such maxi bags cannot to date have been packed into a roll package, i.e. into a delivery package, because it has proved to be impossible to make a stable roll package. In maxi bags like these the gathered lifting loop structure is also in general surrounded with a separate handle, whereby when maxi bags are rolled around a rolling core so that the lifting handle is placed in the middle and the maxi bags are placed one after the other overlappingly one on top of the other, the end result would be a very uneven roll package owing to the thick and narrow handle portion, which, along with the increasing diameter of said roll package, would no longer stay in gathered form, but would spread apart.
OBJECTS AND SUMMARY OF THE INVENTION
The objective of the present invention is to provide a delivery package of maxi bags which is sufficiently stable. A specific aim of the invention is to provide a delivery package of maxi bags enabling automatic maxi bag filling.
One more aim of the invention is also to provide a method for packing maxi bags into delivery packages, enabling the provision of a sufficiently uniformly thick and stable roll package, so that automatic maxi bag filling is simultaneously made feasible.
The aims of the invention are achieved by means of a delivery package of maxi bags, which is mainly characterized in that the delivery package consists of maxi bags placed overlappingly one on top of the other, said bags being rolled around a rolling core into a roll package so that the edge portions of the maxi bags have been folded prior to conducting to the rolling core so that the maxi bags are longitudinally substantially of the same thickness whereby the undesired thickness of the thick handle part of the lifting loop structure of maxi bags has been made uniform in each maxi bag layer in order to produce a stable delivery package.
The procedure of the invention is mainly characterized in that the other and conducted through folding guides in folding position, said guides folding the edge portions of the maxi bags longitudinally in order to produce a maxi bag of substantially equal thickness, and core and are rolled around the rolling core into a roll package.
The insight in a maxi bag delivery package and in the procedure for packing the same into delivery package is to make even the undesired unthickness of the handle part of the maxi bags by folding the edge portions of the maxi bags so with the folding guides that, in its entire length, the maxi bag is substantially of equal thickness. Each layer prod
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Koivum aki Veikko
Nyman Per
Moon Daniel
Oy W. Rosenlew AB
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