Manufacturing container or tube from paper; or other manufacturi – Container making – Rigid container
Reexamination Certificate
1998-06-18
2001-03-27
Hail, III, Joseph J. (Department: 3725)
Manufacturing container or tube from paper; or other manufacturi
Container making
Rigid container
C493S058000, C493S062000, C493S074000, C053S148000, C053S202000, C053S444000
Reexamination Certificate
active
06206815
ABSTRACT:
BACKGROUND OF THE INVENTION
The invention relates to a method of manufacturing (cigarette) packets of the hinge-lid type by folding blanks made of (thin) cardboard in a packaging machine, the blanks being prepared by stamping and having punched-out lines on them as well as folding lines formed by embossing. In addition, the invention relates to a device for carrying out this method.
Hinge-lid packets are a type of packet for cigarettes which are now common throughout the world. The hinge-lid packets consist of a (lower) packet portion and a lid attached with a hinge to a rear wall of same. In addition, this type of packet includes a collar—likewise made of thin cardboard—which can be connected to the blank for the hinge-lid packet or manufactured from a separate blank.
The blanks for this type of packet have up to now been manufactured separately, especially in a paper factory. The blanks, printed (on one side) and provided with punched-out lines and embossing lines for folding, are delivered as piles of blanks and passed into the packaging machine, usually in shaft-like blanks magazines. The material supply for the packaging machine in respect of the blanks is thus expensive and susceptible to being interrupted.
SUMMARY OF THE INVENTION
The purpose underlying the invention is to improve the supply of packaging machines with blanks made of thin cardboard, especially for the production of hinge-lid packets, in respect of their efficiency and reliability.
In fulfilment of this purpose, the method according to the invention is characterised in that the blanks are manufactured in the region of the packaging machine by being separated from a material web made of (thin) cardboard and are provided by embossing with folding lines and by stamping with punched-out lines, and in that the blanks are then directly or indirectly led to a folding assembly of the packaging machine.
The basic idea of the proposal according to the invention is to produce blanks from thin cardboard for the production of hinge-lid packets directly in the region of the packaging machine, by separating them from a continuous web of material, in the region of which the stretched-out blanks are aligned beside one another transversely. The web of material is drawn from a reel in the region of the packaging machine. To this extent, the supply of material to the packaging machine takes place in an analogous way to the handling of thin packaging material made of paper or foil.
In an optimum solution of the invention, the web of material is led through a blanks assembly. In the region of same, the web of material is provided on the (later) outer side of the hinge-lid packets with the necessary printing. Moreover, as far as this is necessary, embossing can take place in order to form symbols represented by embossing. Finally the material web runs through a stamping and grooving assembly, in the region of which the punched-out lines and folding lines are applied by embossing, namely by making grooves, and the blanks are divided from the material web by transverse severance cuts.
According to the invention, the completed blanks are collected forming stacks and are led via vertical and horizontal conveyors to a blanks magazine on the machine side.
A further special characteristic of the invention consists in the fact that the deformation that has occurred through the material web having been stored in a roll, namely curvatures in the region of the blanks, are removed. To this end, the material web is led through a counter-shaping assembly, especially over deforming rollers. The amount of the counter deformation of the material web can be adjusted according to the invention, according to the measurement of the diameter of the reel. The decreasing diameter of said reel during the use of the packaging material is therefore monitored according to the invention.
The device according to the invention for carrying out the method is an additional device for a packaging machine for hinge-lid packets. It is connected with the packaging machine via vertical and horizontal conveyors.
Further details of the invention relate to the method and the device for manufacturing and processing the blanks for hinge-lid packets, including measures for recognising and removing faulty blanks.
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Buse Henry
Focke Heinz
Hafker Thomas
Focke & Co. (GmbH & Co.)
Hail III Joseph J.
Hong William
Sughrue Mion Zinn Macpeak & Seas, PLLC
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