DE1804128C - Method and device for the production of tubular container casing made of cardboard or the like - Google Patents

Description

The Ι-.rfiiKlung is based on a: well-known Vei drive / ur 1! classification tubeless iniücr container defects but there are two benefits to all of them Karionbahn, left those in the area tier t'berhtppuni; sii;: hi inner Karlou-I .ängskante protruding and sloping through the coating- (<> is covered

here Kaniensehut / is for liquid or semi-liquid cm Behalierinlialt of great importance there an unshifted cut edge according to indigenous ties Filling goods / around sources and softening of the 'carrier- -is materials tends to cause leaks in the area of the overlapped container seam graze.

In order to provide edge protection, it is known to disclose the plastic-coated carrier material in the area of the longitudinal edge. which creates an inner cold line covered by a plastic coating. Apart from an increased painterial tendency, in derariincr Kanicnschul / a multilayer in the area of the ('overlap seam / ur I ^; olj: e. What they', 'result in difficulties in the later connection / shilclimg. Weiler is known that the Kui'.stolf coating over the / u ehiit / enile cutting edge protrude / leave 11 to the superior edge then to the cutting fin edge heruni / ulegeii This type of edges school / it repented lei U ·: "nvsiechnisehe difficulties and he orders a / usat / union maschinentechnisclien AulvaiH:. Care is also taken to ensure that the container jacket is coated with plastic on the bulge side in such a way that bulges overhang the edge The hole that roughened the edges of the coating are connected to one another in a single operation in order to effectively cover the cut edge of the blank Difficulties arise when the Zi cuts are made from cardboard web containing multiple uses, which is coated on both sides with Kunsisioft prior to further processing.

With the ISA.-Patcut 3 4Of) 052 Ivs is still iiiniüewoiden. a karion track with bilateral bi-ichichi'üiuen to pass, whereby the free lengthways are encased on both sides by the coating. Here erfolni the connection of the carton on the ground protruding Beschichiungen by \ he scninei / eii using a ^f: strains F.inc deraiuge work-wise due to a knn irukti \ eii Mehrauiw and w-.ibei see difficulties / ur Ir /. ieking result in an effective fusion, and; iußeiden; It is necessary to regulate the heating system depending on the Bahng-'sch>'.indigke't.

According to the deuf-cheii Ausl-jgeschnit IuSI 74s known 1 method for producing ^ eiikuichioimigei container jackets. from which the Itlindunsz looks like. N is processed in /.wci benefit, where n; · -! ^{1 of} the Be-.chichiimg a median strip has to be detached ^{from the 1 K.rionbahn.} Ab-J.-Reilen i'i, i 011. that this N'erigen not ab.llhc! ai ^: x: 'ei. its implementation requires a considerable amount of work.

The edition of the present invention is now available ; .i the creation of a manufacturing process which is better than the known processes Uiiaüta! The overlapping egg tube finmiueii Container and by verei.; F: real economic Manufacturing excels.

This object is achieved in that one of the free longitudinal edges on both sides of the Karion web thermoplastic coatings outstanding on both sides: so applied vviril. let out the edges Connect the coating to one another in the still plastic state, whereupon the longitudinal section produced web halves are formed into tubular container jackets that in the area the edge lying on the inside of the overlap seam is the closed edge and the edge delimited by the longitudinal cut Edge is on the outside.

To carry out this method a device is used in which a pressure and perforating a double-sided ^'1 Beschichtungseinrichlung, an apparatus for mutual trim, a cutting and scoring device and a Schlauchbikiungs- and Liingsnahtsiegclcinrichk; ng arbeitsfolgemiißig are connected in series.

In the following, tier is the subject of the invention described with reference to the embodiment illustrated with the drawings.

I · i g. I shows in a schematic representation the Printing iiiiel perforating process,

big. Figure 2 illustrates the double-sided coating the cardboard web and the ranel trim of the coating.

l-'ig. 3 shows a cross-section on an enlarged scale through the cardboard web,

Fig. ·) Shows the cutting and creasing process for I r / eui'ung the individual container casing cuts.

Fig. S / e shows a cross-section on an enlarged scale by dividing the material web into two panels after the longitudinal cut.

I 804

F- i and ή illustrates the ei η / dnc η phases of the Hose formation and the Länsisnahtsie »elunü.

I- i ti - 7 shows one on an enlarged scale Section through the longitudinal seam of the uucrschmtisoffeiiei! Container jacket.

AU first work will be how | - i vi. I /.eint that based on the web width; -— two uses cnlliahciu'.e cardboard web 1 \ on a supply roll 2 ahge / ogeii. dureh the printing unit 3 single line, untl λ \; ιι aiii the side that ties the outside to be made in the Container forms, hedruekt. The pressure », on ichuing 3 close a device ·! / urn to perforate Ouei The perforation lines 5 running across the Kaiton track I generated by this device siel ·, in the closure area of the her / iWieUen- \ j, ilen container and facilitate its opening in the ! ■ takeover.

The so prepared Kanonhahn 1 we., Well. like mn 1 ι g. 2 illustrates, in a known manner with -. '. Er-ciüg provided with a coating of ihermoplusi - ■ • brazen synthetic material. For this purpose there is a rudder with two slot nozzles !! fi and 7 Verseiidiüii ;. of which the nozzle 6 coated the upper parts and the i) 'ase7 coated the underside of the cardboard web I'. The width of the emerging from the nozzles 6 and 7 _Jä i "Ucnhahnen 8 and 9 is dimensioned so that its kimder the IO l.angskanien the Kaitonhahn ühe i ^r -;:. _R eii These rims 10 combine due de, yet. plastic state of the film web 9 with one another and thus cover the longitudinal edges of the _cardboard web 1. The extruder is followed by a longitudinal cutting device consisting of pairs of circular slicers 11 and 12, which is clean and straight for the purpose of creating a circular shape. the protruding edges 10 trimmed.

The cardboard web 1, which is now coated on both sides, is then, like I-ig. 4 shows one Lifting punch 13 feed. those with cutting tools for longitudinal and cross cutting as well as with creasing tools is provided to produce the creasing lines that determine the course of the fold. Thereby are through the longitudinal section separates the two benefits from each other and the cross section shows the length of the Behaltermanleiziischmtte definitely. Subsequently, they are tubular for the shape that now follows Container maiiieln prepared blanks 14 stacked.

Fi i 'illustrates the sch! Also education \ or iiang. the side portions of the blank 14 along the corresponding lines. iillinien erected and then passed through a heating device 15 with their free ends. As preperation The rounders are for doing longitudinal close-ups of the cut 14 by plasticizing the thermoplastic Coating made adhesive and in this state by l'mlcgcn to each other Deckuiiii brought. In the further course the overlapping longitudinal seams by pressure rollers 16 pressed together.

F i and 7 now show, on an enlarged scale, the construction of the long seam on an open cross-section Behäliermantel. From which it can be seen. that covered by the plastic coating Liingskante is located inside the container, while Jie unprotected generated by the longitudinal cut Edge outside lieut.

For this purpose 2 blue drawings

Claims (2)

Palculaiv.p! üchc: 1. ViJi drive to the position in a tubular manner._r Bchältmüntel from a two-sided coated KartiMi tap. where the >;}> area of the I 'hcrlappungsnahi inncnlieuciuic kanon-Lan ^^ anie is surmounted and covered by the Hevjhichlu: l> _i. el a ti urch ti eke η η .'eieliiiel. that on the KarHip.h.ihn ZweNc'uii. A coating of the .rl is applied to the free i anüskaiücn both.-cit- libep'aiij'uie '. ".W'-ui the through long lines: ii. The edge delimited by the longitudinal cut lies on the LV 2. \ '(irrichtung zur Durchiiilmini: des \'ei:; ■ iireiis LicnKii '. Claim i. Characterized by the ai bciNl'i.'liieinäl.Uge 1 Imiereinanders-chaltuni: one Ρπκκ arid Pcrfeii iereinrichtiing \ i. 4) . a double-sided decree; gscinnchliiiig (f>. 7j. "'. Her negation / around the margin on both sides (11.12). a cutting and Rülcinricliiiiiig (13) and a Sehlauehbiklim ^ uiul Lün <. ! '' * 5. 16)