DE1939961C3

DE1939961C3 - Device for the production of corrugated cardboard

Info

Publication number: DE1939961C3
Application number: DE19691939961
Authority: DE
Inventors: Helmut 5600 Wuppertal Brandenburg
Original assignee: Eickhoff-Universal Wellpappenmaschinen 4630 Bochum GmbH
Current assignee: Eickhoff-Universal Wellpappenmaschinen 4630 Bochum GmbH
Priority date: 1969-08-06
Filing date: 1969-08-06
Publication date: 1974-05-30
Also published as: DE1939961B2; DE1939961A1

Description

3 43 4

Bei Vorrichtungen zur Durchführung des Verfah- rück, auf den die aus den Bohrungen 5 des Rohres 6 rens nach dem Hauptpatent, deren Schöpfwalze zwi- austretenden Luftstrahlen 7 auftreffen. Unter der Besehen Dosierwalze und der gewellten Lage ein sich wegungsenergie dieser über die ganze Walzenlänge über die Walzenlänge erstreckender, auf dem verteilten Luftstrahlen 7, die in gleichem Abstand Schöpfwalzenumfang gleitender Schaber zugeordnet 5 voneinander angeordnet sind, wird der Leirnfilm der ist, können die Vorsprünge c?s mit Kammartiger Ab- umlaufenden Schöpfwalze 1 ringförmig unterteilt und Streiferkante versehenen Schabers einen etwa dreiek- . in den Ringen 8 konzentriert. Er erreicht somit an kigen Querschnitt haben und derart angeordnet sein, diesen Stellen eine Dicke, die gerade für eine eindaß sie der Dosierwalze ihre spitze Schmalseite zu- wandfreie Verklebung ausreicht, während die zwiwenden. Auch solche Schaber sind in der Lage, den io sehen den Ringen 8 verbleibenden Lücken fast frei auf der Walzenoberflächc befindlichen Leimfilm an von Leimresten sind. In dieser Form läßt sich der den Ringsteücn in der benötigten Dicke zu konzen- Leim auf die Kuppen der durch die Rolle 9 niedergetrieren, da der überschüssige Leim zwischen den Rin- haitenen Welle 10 punktförmig auftragen. Zur richtigen durch die kammartigen, dreieckigen Vorsprünge gen Einstellung der Luftstrahlen 7 ist das Rohr 6 seitlich zu den Ringstellen hin abgedrängt wird. 15 drehbar und/oder radial verstellbar angeordnet. AufIn the case of devices for carrying out the method to which the holes 5 in the pipe 6 rens according to the main patent, whose scoop roller impinge between exiting air jets 7. Under the sight Dosing roller and the corrugated layer a kinetic energy of this over the entire length of the roller Over the roller length extending, on the distributed air jets 7, which at the same distance The scoop roller circumference sliding scrapers are assigned 5 arranged from one another, the glue film is the is, the projections c? s with a comb-like circumferential scoop roller 1 can be divided into a ring and The scraper edge provided with an approximately triangular. concentrated in rings 8. He thus reaches at Have kigen cross-section and be arranged in such a way that these points have a thickness that is just for a einaß the dosing roller is sufficient for its sharp narrow side to be glued properly, while the two turn. Such scrapers are also able to see the remaining gaps in the rings 8 almost free there are glue film on the roller surface of glue residues. In this form the to concentrate the ring pieces in the required thickness glue on the crests of the roller 9, as the excess glue between the grooves should be applied in dots. To the right one Due to the comb-like, triangular projections towards the adjustment of the air jets 7, the tube 6 is is pushed sideways towards the ring points. 15 rotatably and / or radially adjustable. on

Es ist auch möglich, diesen Schaber an Stelle der diese Weise lassen sich die Breite und die Dicke der Düsierwaize anzuordnen und ihn mit zwei hinterein- Leimringe 8 beeinflussen und den Erfordernissen ananderliegenden Abstreiferkanten auszustatten, von passen. Ähnliche Wirkung kann mit einer Beeinflusdenen die erste, glatte Abstreiferkante auf ihrer gan- sung des Luftdruckes erzielt werden. Auch kann zen Länge und die zweite, kammartige Abstreifer- 20 durch Temperaturänderung der dem Rohr 6 zugekante mit ihren Vorsprüngen auf dem Schöpfwalzen- führten Druckluft der nach dem Aufbringen der zu umfang aufliegt. Ein so ausgebildeter Schaber kann verklebenden Papierbahnen einsetzende Trocknungsnicht nur die Leimmengen dosieren und den benötig- prozeß beeinflußt werden (F i g. 1 und 2).
ten Leimfilm in seiner Dicke einstellen, sondern . Bei dem Ausführungsbeispiel nach den Fig.3,4 gleichzeitig diesen Film auch in ringförmige Streifen 35 und 5 ist an Stelle des Rohres 6 ein Schaber 11 vorunterteilen. Zur Einstellung des für beide Abstreifer- gesehen, der sich über die ganze Schöpfwalzenlänge kanten unterschiedlichen Anpreßdruckes empfiehlt erstreckt. Die Abstreiferkante dieses Schabers 11 ist es sich, diese Kanten voneinander unabhängig radial kammartig ausgebildet und hat die in der F i g. 4 darverstellbar auszubilden. gestellte Form. Sie unterteilt den anlaufenden Leim-It is also possible to arrange the width and the thickness of the nozzle roll instead of this way and to influence it with two glue rings 8 one behind the other and to fit the requirements of adjacent scraper edges. A similar effect can be achieved by influencing the first, smooth wiper edge on its air pressure transition. Also zen length and the second, comb-like wiper 20 by changing the temperature of the edge of the tube 6 with its projections on the scoop roller- guided compressed air which rests after the application of the too circumferential. A scraper designed in this way can not only meter the quantities of glue and the required process can be influenced (Figs. 1 and 2).
adjust the thickness of the glue film, rather. In the embodiment according to FIGS. 3, 4 at the same time this film is also divided into ring-shaped strips 35 and 5, instead of the tube 6, a scraper 11 is pre-subdivided. To set the edge for both scrapers, which extends across the entire length of the scoop roller, recommends different contact pressure. The scraper edge of this scraper 11 is designed radially comb-like, these edges independently of one another, and has the characteristics shown in FIG. 4 trainable adjustable. posed form. It divides the approaching glue

Nach einem weiteren Erfindungsmerkmal können 30 film streifenförmig und drückt ihn bei einer der Rohr und Schaber ständig eine axiale Oszillationsbe F i g. 5 entsprechenden Ausbildung der kammartigen, wegung ausführen, deren Frequenz der Schöpfwal- mit dreieckigem Querschnitt ausgestatteten Vorzendrehzahl proportional und deren Schwingungs- Sprünge 12 zu ringförmigen Streifen zusammen,
weite (Amplitude) mindestens gleich der halben Bei dem der F i g. 6 entsprechenden Ausführungs-According to a further feature of the invention, the film can be 30 in the form of a strip and presses it constantly with an axial oscillation bevel at one of the tube and scraper. 5 perform appropriate training of the comb-like movement, the frequency of which is proportional to the scoop whale speed with a triangular cross-section and whose oscillation jumps 12 together to form ring-shaped strips,
width (amplitude) at least equal to half that of the Fig. 6 corresponding execution

Lochteilung des Rohres bzw. dei Teilung der kamm- 35 beispiel ersetzt der Schaber 13 die Dosierwalze 4. artigen Schabervorsprünge ist. Durch diese Bewe- Dieser Schaber 13 hat zwei hintereinanderliegende gung werden die einzelnen Leimpunkte von Wellen- Abstreifkanten 14, 15, von denen die Kante 14 glatt kuppe zu Wellenkuppe versetzt, und es wird dadurch und die Kante 15 kammartig ausgebildet ist. Erstere die Haltbarkeit der Verleimung zwischen den einzel- streift den überschüssigen Leim von der Schöpfnen Papier- bzw. Pappenbahnen verbessert. 40 walze 1 ab und führt ihn erneut der Leimwanne 2 zu,Hole division of the pipe or the division of the comb, for example, the scraper 13 replaces the metering roller 4. like scraper projections is. Through this movement this scraper 13 has two one behind the other The individual points of glue of corrugated wiping edges 14, 15, of which the edge 14 is smooth tip to wave tip, and it is thereby and the edge 15 is formed like a comb. The former The durability of the glue between the individual strips removes the excess glue from the scoop Paper or cardboard webs improved. 40 roller 1 and feeds it back to the glue pan 2,

Ausführungsbeispiele der Erfindung sind in den während letztere den auf dem Schöpfwalzenumfang Abbildungen dargestellt. Es zeigt verbleibenden Leimfilm in der vorbeschriebenenEmbodiments of the invention are in the while the latter on the scoop circumference Illustrations shown. It shows remaining glue film in the above

F i g. 1 eine schematische Seitenansicht eines mit Weise ringförmig unterteilt. Damit auch bei untereinem Blasrohr ausgestatteten Leimwerkes, schiedlichem Verschleiß beide Abstreiferkanten 11.F i g. 1 is a schematic side view of a divided ring-shaped manner. So also with one another Blowpipe equipped glue unit, different wear, both scraper edges 11.

F i g. 2 die Schöpfwalze mit dem zu ihr parallel an- 45 15 ständig mit dem richtigen Druck am Schöpfgeordneten Blasrohr im Grundriß, walzenumfang, anliegen, mtisen sie unabhängig von-F i g. 2 the scoop roller with the one parallel to it 45 15 constantly with the correct pressure on the scoop assembly Blowpipe in plan, roller circumference, fit, they must be independent of-

F i g. 3 eine schematische Seitenansicht eines mit einander in Richtung der Schöpfwalze 1 verstellbar einem Schaber ausgerüsteten Leimwerkes, sein.F i g. 3 is a schematic side view of one adjustable with one another in the direction of the scoop roller 1 a scraper equipped gluing machine.

F i g. 4 die Schöpfwalze mit dem kammartigen In allen Ausführungsbeispielen führen sowohl dasF i g. 4 the scoop roller with the comb-like In all exemplary embodiments, both the

Schaber, 50 Rohr 6 als auch die Schaber 11, 13 in Richtung desScraper, 50 tube 6 as well as the scraper 11, 13 in the direction of the

Fig.5 einen Schnitt nach der Linie a-a der Doppelpfeiles 16 eine oszillierende Bewegung aus. Fig.4, Hierdurch werden die Leiimpunkte aufeinanderfol-5 shows a section along the line aa of the double arrow 16 from an oscillating movement. Fig. 4, Hereby the glue points are successively

F i g. 6 eine schematische Seitenansicht eines gender Wellenkuppen zueimandei versetzt aufgetra-Leimwerkes ohne Dosierwalze. gen, und es wird dadurch die Klebeverbindung zwi-F i g. 6 is a schematic side view of a gender crest of the corrugation staggered towards one another and applied glue unit without metering roller. gen, and it is thereby the adhesive connection between

Die Schöpfwalze 1 taucht mit ihrem unteren Um- 55 sehen den miteinander zu verklebenden Bahnen verfangsabschnitt in die Leimwanne 2 ein und läuft in bessert. Um bei allen Umlaufgeschwindigkeiten der Richtung des Pfeiles 3 um. Auf ihrem glatten, zylin- Schöpfwalze 1 eine gleichmäßig versetzte Anordnung drischen Umfang bleibt, nachdem sie mit den benetz- der Leimpunkte zu erzielen, ist die Schwingungszahl ten Umfangsteilen an der Dosierwalze 4 vorbeigelau- des Rohres 6 oder der Schaber 11, 13 von der fen ist, ein etwa 0,1 bis 0,2 mm dicker Leimfilm zu- 60 Schöpfwalzendrehzahl abhängig.The scoop roller 1 dips with its lower periphery to see the intercepting section of the webs to be glued together into the glue pan 2 and runs in better. In order to be able to use the Direction of arrow 3 around. On their smooth, cylindrical scoop 1 an evenly offset arrangement The number of vibrations remains, after achieving it with the wetting points of glue th peripheral parts of the metering roller 4 past the pipe 6 or the scraper 11, 13 of the An approximately 0.1 to 0.2 mm thick film of glue depends on the speed of the scoop roller.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

... The main patent relates to a method and a patent claim: Device for the production of corrugated cardboard, in which

1. Device for carrying out the process on the crests of the corrugated layer of a women's for the production of corrugated cardboard according to patent lenbahn is applied in dots. Are there 1935 549, according to which glue on the tips 5 the glue dots by the measure of their width from one another Corrugated track is applied punctiformly, which is offset on the successive waves a gluing plant for corrugated cardboard machines, tips applied. The the glue points in this that with a device applying to a circumferential portion in a mold is with one in a Glue pan immersing scoop roller and glue pan immersing scoop roller and one one of the scoop roller associated, adjustable io is equipped on the scoop roller circumference and the shaft-mounted metering roller, the web rolling glue application roller equipped, with its upper peripheral portion on which the Leirnfilm the shape of ring-shaped strips corrugated layer of corrugated cardboard rolling over. This is the circumferential surface of the glue application scoop roller between the metering roller and the corrugated roller ™ with a single or multi-start, of two Lay a thread extending over the length of the roller 15 opposing sections is assigned, characterized in that both of them draw the corrugated path outwards, in that the squeegees have a slope that is pressing with compressed air and only with their blades is supplied tube (6), the one on the scoop the glue punctiform on the crests of the corrugated has a row of holes (5) directed towards the circumference of the roller. Drop the location.

2. Apparatus according to claim 1, characterized in that the object of the invention is to provide the means indicates that the tube (6) can be rotated and / or to produce the glue rings on the scoop roller is mounted radially adjustable. simplify.

3. Apparatus according to claim 1 and 2, since the invention is to solve this problem characterized in that the tube (6) with compressed air from a device for carrying out the method different temperature and different for the manufacture of corrugated cardboard according to patent variable pressure can be applied. 1 935 549 from what glue on the crests

4. Device for carrying out the method of the corrugated track is applied punctiformly, with rens for the production of corrugated cardboard according to patent a glue plant for corrugated cardboard machines, which is applied punctiformly with 1 935 549, after which glue on the crests of a on a circumferential section in a glue of the corrugated track , 30 pan dipping scoop roller and one of the assigned with a gluing unit for corrugated board machines, scoop roller adjustably mounted which is equipped with a on a peripheral portion in a Dosier.valze, wherein the with ih
Glue tub immersed scoop roller and rem upper circumferential section on the corrugated layer of a scoop roller associated with the scoop roller and adjustable from the corrugated cardboard rolling between the mounted metering roller, the metering roller and the corrugated layer being equipped with a doctor blade extending with its upper peripheral section along the length of the roller assigned. For the corrugated position of the corrugated board rolling solution of the problem, it is proposed that the Ra scoop roller between the metering roller and the corrugated angle is a pipe supplied with compressed air, one layer of a row of holes extending over the length of the roller, directed towards the scoop roller circumference, sliding on the scoop roller circumference 4- owns. The scraper that constantly emerges from the row of holes is assigned, characterized in that the projections (12) of the scraper (11) provided with a comb-like compressed air jet split and displace the scraper edge provided here have a thin film of glue on both sides which is approximately triangular in cross-section and are arranged in such a way and concentrate it in annular strips that they reach the metering roller (4) their 45 of the scoop roller surface. These strips have a pointed narrow side. especially those for the perfect gluing of the white

5. Apparatus according to claim 4, marked cardboard required thickness. Such a working and net by applying glue in place of the metering roller (4) only punctually on the tops of the arranged A scraper (13), which has scraper edges (14, 15) lying on the back with two withered layers of a corrugated path applying glue on each other, opposite the glueing unit after the main thening is, of which the first, smooth wiper patent has a simpler structure.

edge (14) along its entire length and the second, There are gluing units for corrugated cardboard machines

comb-like scraper edge (15) with its fore-edge, in which the scoop roller with a doctor blade

Jumps (12) on the scoop roller circumference is equipped, which removes the excess glue from

located. 55 scrapes the scoop roller circumference and

6. Apparatus according to claim 5, characterized by a thin film of glue on the scoop roller upper label, that the two scraper edges leaves the surface on the crests of the corrugated (14, 15) independently of one another radially adjustable position is applied over the entire length. Outrageous are, it belongs to the state of the art, the ab-

7. Gluing unit according to claims 1 to 6, to provide 60 scraper edge of a doctor blade with slots, characterized in that the tube (6) and the and the application material only in narrow, the scraper (11, 13) constantly an axial oscillation To apply strips corresponding to the width of the slot,
In order to be able to proportionally influence the width of the glue rings on the scoop roller speed and to be able to influence their tail circumference, the pipe can be rotatably and / or radially adjustable at least about half the hole size. According to the tube (6) or the division of the chambers, the tube can be provided with various types of scraper projections (12) using compressed air. Temperature and variable pressure

be beatable.