CS225119B2 - The equipment for the production of cigarette packets - Google Patents

Abstract

A device for making cigarette package wrappings on cigarette packaging machines, in which paper cuts are successively withdrawn from a stack of cuts and are by heated transmission rollers which have picked up an adhesive from a heated adhesive containing storage container provided at selected areas with adhesive and are subsequently by a folding device folded to form a package wrapping for receiving a block of cigarettes. At the end of the folding operation the folded parts to be connected to each other are by a heated strip pressed against each other and subsequently cooled.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for manufacturing cigarette packs on a machine for wrapping cigarettes from paper or paperboard blanks taken from a bundle by means of a segment roller cooperating with a transfer roller. circulating on an endless chain and fixed folding points and folding claws are folded into a one-sided open wrapper, which is placed on the conveyor belt for insertion of the jacketed cigarette blocks.

Until now, cigarette packs produced on cigarette packing machines have been glued with cold clinkers, which require a cleansing of the crusts formed by the hardened glue in order to re-apply the glue. This cleaning is necessary not only after finishing or resp. before the start of the daily working time, but also in the case of delays due to disturbances, which are thus prolonged a great deal.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a device for producing cigarette packs on cigarette packaging machines which, regardless of the glue application device, can be started at any time and does not result in imperfectly glued cigarette packets even when machine delays occur.

Starting from a device of the type described above, the invention proposes to provide a heating device in addition to a hot melt adhesive container with a transfer roller and a segment roller and to place a heated pressure bar and a cooling line connected thereto at the end of the folding device.

With this design according to the invention, it is possible to obtain a device which is capable of being pulverized at all times without the need for a glue application device. By 'reactivating the hot-melt adhesive before the desired bonding process, undesired or incomplete sticking of the packs of cigarettes is prevented. These packs are securely glued to ready-to-assemble locations due to pressure and smoothing, even when the cigarette packer had to be stopped due to failure ·

In a preferred embodiment, the transfer roller and segment roller are each provided with a coherent electric heating cartridge.

The drawing shows a schematic side view of an exemplary embodiment of the device according to the invention.

From the cigarette wrapping machine only the transpoot belt 6 can be recognized, after which the cigarette blocks J provided with the foil sheath are conveyed by the drivers 2. Each cigarette block J has to be inserted into a container 4 which is manufactured in a folding device above the conveyor belt and open. During the insertion of the cigarette block, the wrapper is held by a flame stop 2, which is removed after the block has been moved along the path of movement of the cigarette blocks.

The folding device used for the production of packages 4 is provided with a plurality of collapsible pins 6 which are fixed on an endless chain circulating in part. This chain is driven by a drive roller 8 and is also guided around a deflection roller 2, which In the illustrated embodiment, it does not lie perpendicularly above the drive roller 8. Due to this arrangement, two straight runner sections for folding mandrels 6 mounted on the chain 2 have been formed. In the bend of these straight runner sections, the wrappers 4 are folded.

Downstream of the circulating section on the right, there is a bundle 60 formed of blanks 11 for the manufacture of packages 4. Single blanks 11 are sucked off by a suction device 64 and fed to two transport rollers 33 One of these transport rollers 13 cooperates a segment roller 14, the segments of which are provided by a transfer roller 52 with a hot-melt adhesive which is disposed in the container 60;

To maintain the hot melt adhesive, normally solid, in liquid state, the glue tank 16 is provided with a heating device 17. Both the segment roller 64 and the transfer roller 52 are provided with a thawing electric heating cartridge 18 to maintain the hot melt adhesive during deposition. liquid state ·

From the glue application device, the blank is provided by:! The control levers 19 are slid onto one of the folding mandrels - whose wider sides extend parallel to the path of its movement. During its successive movement, the folding mandrel 6 carrying the blank 11 reaches the area of the longitudinal folding elements -20, which causes the side folding of the package. the bottom of the wrapper is made so that the mandrel 6 carries the wrapper, folded up to one side, at the moment when it enters the upper arc orbital section. its center is always placed one heating device 24 help! wherein the hot melt adhesive is on the ready-to-fold packaging 4 - reactivated by heating. This reactivation terminates in the heating line 22 connected to the arc orbital section.

This heating liner 25 is located on the lance 26, which creates the necessary pressure for a secure bonding of the package 4. This lantern 26, provided with the heating device 25, is followed by a cleavage lance 27. The cooling liner 27 can, for example, be effected by means of low-temperature air streams which are supplied by the air ducts 28.

On each folding mandrel 6 there is a retainer 29 which is subjected to spring pressure and which, after folding longitudinally, is applied to the glued seam of the wrapping 4 and pressed thereon until the wrapping 6 is removed from the folding mandrel 6

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30, which is located below the drive roller β for the chain 1, is held by the push lever 31 lifted from the folding mandrel 6, so that the wrapper 8 can be pulled downwards.

The wrapping of the packages 1 from the folding mandrels 6 takes place by means of a clamping catcher

32 which not only pulls the finished packages 6 down from the existing folding mandrels 6, but also rotates them by 90 ° so that they can then be deposited with their wider side onto the trans-port belt 6. The package 4, open at the front side, then abuts the finished glued bottom to the stop 6 so that the cigarette block 1, conveyed by the carrier 2, can be inserted into the open face of the package 4.

Claims (2)

1. Installations for the manufacture of cigarette packets on machines for wrapping cigarettes from paper or paperboard blanks taken from a bundle by means of a segment roller cooperating with the transfer roller, provided in certain places with glue from the respective tank and on the folding device by folding pins, circulating on an endless chain and fixed folding points and folding claws are folded in a one-sided open container, which is placed on a conveyor belt for inserting the cigarette blocks provided with a strip, characterized in that in addition to the hot melt adhesive container The transfer roller (15) and the segment roller (14) are also provided, wherein a heated pressure bar (26) and a cooling line (27) adjoining it are located at the end of the folding device. Device according to claim 1, characterized in that the transfer roller (15) and the segment roller (14) are each provided with a co-circulating electric heating cartridge (18).