EP0135052A2 - Heating device for corrugated board in a machine for uniting the corrugated board with a web - Google Patents
Heating device for corrugated board in a machine for uniting the corrugated board with a web Download PDFInfo
- Publication number
- EP0135052A2 EP0135052A2 EP84108648A EP84108648A EP0135052A2 EP 0135052 A2 EP0135052 A2 EP 0135052A2 EP 84108648 A EP84108648 A EP 84108648A EP 84108648 A EP84108648 A EP 84108648A EP 0135052 A2 EP0135052 A2 EP 0135052A2
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- EP
- European Patent Office
- Prior art keywords
- corrugated cardboard
- heating
- heating plates
- web
- control device
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 78
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 13
- 238000007791 dehumidification Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- IUVCFHHAEHNCFT-INIZCTEOSA-N 2-[(1s)-1-[4-amino-3-(3-fluoro-4-propan-2-yloxyphenyl)pyrazolo[3,4-d]pyrimidin-1-yl]ethyl]-6-fluoro-3-(3-fluorophenyl)chromen-4-one Chemical compound C1=C(F)C(OC(C)C)=CC=C1C(C1=C(N)N=CN=C11)=NN1[C@@H](C)C1=C(C=2C=C(F)C=CC=2)C(=O)C2=CC(F)=CC=C2O1 IUVCFHHAEHNCFT-INIZCTEOSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/20—Corrugating; Corrugating combined with laminating to other layers
- B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
- B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
- B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
- B31F1/2845—Details, e.g. provisions for drying, moistening, pressing
- B31F1/285—Heating or drying equipment
Definitions
- the invention relates to a heating device for corrugated cardboard in a corrugated cardboard gluing machine with a plurality of heating plates spaced apart in the feed direction and covering the maximum width of the corrugated cardboard web, which can be connected to a heat source via a control device and against whose upward-facing heating surface the corrugated cardboard is guided under load through a load belt and / or compressed air.
- the heating plates extend over at least the maximum width of a corrugated cardboard web. Heating takes place in most cases with the help of steam.
- the supply of steam can be adjusted using suitable fittings to achieve certain temperatures on the heating surface.
- the energy supply is made dependent, among other things, on the web speed. Naturally, the heat supply must be increased when the web speed is increased. Conversely, the heat supply must be reduced at a lower speed and, if possible, stopped immediately if the train comes to a standstill. Otherwise there is a risk of damage to the corrugated cardboard due to excessive temperatures.
- the invention is therefore based on the object of providing a heating device for corrugated cardboard in a corrugated cardboard gluing machine which enables the corrugated cardboard web to be dried evenly over the width.
- Conventional corrugated cardboard gluing machines generally have a plurality of heating sections, each of which has a plurality of elongated heating plates which are arranged transversely to the feed direction.
- inventive device can have the same or similar, for example, heating plates are used, but in 90 0 twisted orientation. Depending on the required width, for example four or five such plates can be arranged parallel to one another in the longitudinal direction. By controlling the energy supply to the individual plates, these can be provided with different temperatures on the heating surface. Since the corrugated cardboard layers are usually wetter outside than inside, the outer plates, for example, can be at a higher temperature than the middle ones. With the help of the heating device according to the invention, it is possible in a simple manner to keep the dehumidification taking place during heating uniform and thus to avoid later curvatures of the corrugated cardboard.
- a further embodiment of the invention consists in that a moisture sensor is assigned to each heating plate in the running direction in front of the heating device.
- the moisture sensors measure the moisture content of the web strips supplied to the respective heating plates, so that the heat supply to the respective heating plates can be adjusted in a corresponding manner.
- Such moisture sensors are known per se and work without contact, for example on an infrared or microwave basis. With the aid of such moisture sensors, according to a further embodiment, it is possible to couple them to the control device for the purpose of automatically controlling the temperature of the individual heating plates.
- further moisture sensors assigned to the heating plates are arranged in the running direction behind the heating device and are connected to a controller by comparing the measured moisture values with a setpoint value in each case in order to adjust the heat supply to the heating plates by means of the control device also regulate the degree of dehumidification automatically. This not only ensures uniform drying, but also the degree of drying can be determined.
- Another embodiment of the invention provides that a speed sensor the web speed of the corrugated cardboard measures and gives a signal to the control device to control the supply of heat to the heating plates depending on the web speed. As already mentioned above, it is expedient to adjust the heat supply to the heating plates as a function of the speed of the corrugated cardboard.
- the heat supply to the heating plates can also be controlled in the individual sections arranged one behind the other.
- this is known per se.
- the front heating plates are heated more than the rear ones, in order to prevent impairment due to excessive heat input when the material is already largely dry.
- the invention also includes constructions which provide for a subdivision of the heating surface transverse to the feed direction.
- a continuous heating plate in the transverse direction would also be conceivable, which is subdivided into individual chambers which are largely thermally insulated from one another.
- a fan is located in the printing device, or the printing device is connected to a compressed air source via one or more hoses.
- the air pressure in each sub-hood can now be set separately, so that a different loading of the corrugated cardboard web can be set over the width of the heating device. Since, as already mentioned, the load also influences the heat transfer, the measure according to the invention can be used Control dehumidification across the width of the corrugated cardboard web in addition to the divided heating plates.
- the gluing machines have several sections in a row, which according to the invention are each provided with a plurality of heating plates arranged transversely.
- an embodiment of the invention provides that the compressed air hoods each cover a heating plate section and are selected in number and arrangement such that they extend over the dividing line between heating plates adjacent in the transverse direction. In this way, the more or less sharp transition between the adjacent heating plates in the transverse direction can be compensated for at different temperatures.
- the device shown in FIG. 1 is divided into three sections A, B, C.
- Each section contains elongated rectangular heating plates 10, namely five plates 10 arranged side by side in parallel. They lie on a frame construction 11, which is not shown or described in further detail.
- the number and dimensions of the heating plates 10 are such that the total width of the individual heating plates 10 is such that the total width of the total heating surface formed by the individual heating plates is wider than the largest web width.
- the direction of advance is shown by arrow 12.
- Each heating plate 10 is provided with two connections 13, 14 for the supply or discharge of heating medium, for example steam. As will be explained later, the supply of the heating medium to each individual heating plate 10 can be controlled separately.
- a moisture sensor 15 is assigned to each row of heating plates 10, for example A1, B1 and C1.
- the moisture sensors 15 are of a known type and can be non-contact micro source sensors.
- Moisture sensors 16 can also be assigned to the individual rows of heating plates behind the heating device.
- a control device which may also include a controller, is designated 17.
- Corresponding control or setting commands go to control valves 18.
- Each heating plate 10 is assigned a control valve 18.
- a speed sensor 19 outputs a speed signal to the control device 17.
- the control valves 18 control the heat supply accordingly.
- the edge plates A1 and A5 can have a temperature of 180 ° C on the heating surface, while the remaining A2 to A4 have a temperature of, for example, 100 ° C. Since most of the moisture is broken down in the first section A, the next sections B and C are operated as usual at low temperatures. With the aid of the moisture sensors 16, regulation can also be carried out in such a way that the degree of moisture or the degree of drying can be adjusted.
- the speed sensor 19 ensures speed-dependent heating of the heating plates 10.
- FIG. 3 three sections of the gluing machine (not explained in detail) are provided with heating plates 30, similar to the heating plates A1 to A5, B1 to B5 or C1 to C5 according to FIG. 1.
- the individual sections are hoods D1 to D3, E1 assigned to E3 and F1 to F3. Their length corresponds to the length of the heating plates 30. However, they have a larger width. Since the width of the pressure hoods is greater than that of the heating plates, the longitudinal dividing lines between the individual heating plates 30 are always covered by a pressure hood.
- the pressure hoods D1 to D3, E1 to E3 or F1 to F3 are each supplied with their own fan or from a common compressed air source, but the connection from the compressed air source to the individual hoods can be controlled in such a way that the pressure within the hoods can be changed is. 3, the last hood G seen in the conveying direction extends over the entire width of the gluing machine.
- control of the compressed air supply within the hoods described can also be carried out with the aid of the moisture sensors 15, 16 according to FIG. 2.
- control valves 18 for the steam supply their signals therefore control further control valves for the compressed air supply to the hoods or the fan drives within the hoods.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
Abstract
Heizvorrichtung für Wellpappe in einer Wellpappen- Beklebemaschine mit mehreren in Vorschubrichtung beabstandeten, die maximale Breite der Wellpappenbahn überdeckenden Heizplatten, die über eine Steuervorrichtung an eine Wärmequelle anschließbar sind und gegen deren nach oben weisende Heizfläche die Wellpappe geführt und unter Belastung durch einen Belastungsgurt und/oder Druckluft, wobei in mindestens einem Abschnitt zwei oder mehr getrennte Heizplatten quer zur Laufrichtung der Wellpappe nebeneinander angeordnet und mittels der Steuervorrichtung getrennt beheizbar sind.
Description
Die Erfindung bezieht sich auf eine Heizvorrichtung für Wellpappe in einer Wellpappen-Beklebemaschine mit mehreren in Vorschubrichtung beabstandeten, die maximale Breite der Wellpappenbahn überdeckenden Heizplatten, die über eine Steuervorrichtung an eine Wärmequelle anschließbar sind und gegen deren nach oben weisende Heizfläche die Wellpappe geführt wird unter Belastung durch einen Belastungsgurt und/oder Druckluft.The invention relates to a heating device for corrugated cardboard in a corrugated cardboard gluing machine with a plurality of heating plates spaced apart in the feed direction and covering the maximum width of the corrugated cardboard web, which can be connected to a heat source via a control device and against whose upward-facing heating surface the corrugated cardboard is guided under load through a load belt and / or compressed air.
Bei herkömmlichen Wellpappen-Beklebemaschinen erstrecken sich die Heizplatten über mindestens die maximale Breite einer Wellpappenbahn. Die Beheizung erfolgt in den meisten Fällen mit Hilfe von Dampf. Die Zufuhr von Dampf kann mit Hilfe geeigneter Armaturen eingestellt werden, um bestimmte Temperaturen an der Heizfläche zu erzielen. Die Energiezufuhr wird u.a. von der Bahngeschwindigkeit abhängig gemacht. Naturgemäß muß die Wärmezufuhr bei Erhöhung der Bahngeschwindigkeit vergrößert werden. Umgekehrt muß bei kleinerer Geschwindigkeit die Wärmezufuhr reduziert und nach Möglichkeit sofort unterbunden werden, wenn ein Stillstand der Bahn eintritt. Andernfalls besteht Gefahr, daß durch zu hohe Temperaturen eine Beschädigung der Wellpappe eintritt.In conventional corrugated cardboard gluing machines, the heating plates extend over at least the maximum width of a corrugated cardboard web. Heating takes place in most cases with the help of steam. The supply of steam can be adjusted using suitable fittings to achieve certain temperatures on the heating surface. The energy supply is made dependent, among other things, on the web speed. Naturally, the heat supply must be increased when the web speed is increased. Conversely, the heat supply must be reduced at a lower speed and, if possible, stopped immediately if the train comes to a standstill. Otherwise there is a risk of damage to the corrugated cardboard due to excessive temperatures.
Es kommt verhältnismäßig häufig vor, daß die Feuchtigkeit der einzelnen Lagen der Wellpappe über ihre Breite nicht gleich ist. Eine Ursache liegt darin, daß beim Lagern der Papierrollen Feuchtigkeit von außen eindringt, jedoch nur bis zu einer gewissen Tiefe, die ihrerseits von der Lagerzeit abhängt. In der Wellpappenbeklebemaschine bewirkt die unterschiedliche Feuchtigkeit über die Bahnbreite eine unterschiedliche Entfeuchtung. Bei der Weiterverarbeitung besteht daher die Gefahr, daß die Pappe sich krümmt und unter Spannung gelangt, was für die Konfektionierung von aus Pappenzuschnitten hergestellten Gegenständen nachteilig ist.It happens relatively often that the moisture of the individual layers of corrugated cardboard is not the same across its width. One reason is that moisture comes in from the outside when the paper rolls are stored, but only to a certain depth, which in turn depends on the storage time. In the corrugated pasting machine, the different moisture across the web width results in different dehumidification. During further processing there is therefore a risk that the cardboard will bend and get under tension, which is disadvantageous for the manufacture of objects made from cardboard blanks.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Heizvorrichtung für Wellpappe in einer Wellpappen-Beklebemaschine zu schaffen, die eine auch über die Breite gleichmäßige Trocknung der Wellpappenbahn ermöglicht.The invention is therefore based on the object of providing a heating device for corrugated cardboard in a corrugated cardboard gluing machine which enables the corrugated cardboard web to be dried evenly over the width.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß in mindestens einem Abschnitt zwei oder mehr getrennte Heizplatten quer zur Laufrichtung der Wellpappe nebeneinander angeordnet und mittels der Steuervorrichtung getrennt beheizbar sind.This object is achieved in that in at least one section two or more separate heating plates are arranged side by side transversely to the direction of travel of the corrugated cardboard and can be heated separately by means of the control device.
Herkömmliche Wellpappen-Beklebemaschinen weisen in der Regel mehrere Heizsektionen auf, von denen jede mehrere längliche Heizplatten aufweist, die quer zur Vorschubrichtung angeordnet sind. Bei der erfindungsgemäßen Vorrichtung können zum Beispiel gleiche oder ähnliche Heizplatten eingesetzt werden, jedoch in um 900 verdrehter Orientierung. Je nach geforderter Breite können zum Beispiel vier oder fünf derartige Platten parallel zueinander in Längsrichtung angeordnet werden. Durch Steuerung der Energiezufuhr zu den einzelnen Platten können diese mit unterschiedlicher Temperatur an der Heizfläche versehen werden. Da in der Regel die Wellpappenlagen außen feuchter als innen sind, können zum Beispiel die äußeren Platten eine höhere Temperatur als die mittleren aufweisen. Mit Hilfe der erfindungsgemäßen Heizvorrichtung gelingt es auf einfache Weise, die beim Heizen stattfindende Entfeuchtung gleichmäßig zu halten und damit spätere Krümmungen der Wellpappe zu vermeiden.Conventional corrugated cardboard gluing machines generally have a plurality of heating sections, each of which has a plurality of elongated heating plates which are arranged transversely to the feed direction. In the inventive device can have the same or similar, for example, heating plates are used, but in 90 0 twisted orientation. Depending on the required width, for example four or five such plates can be arranged parallel to one another in the longitudinal direction. By controlling the energy supply to the individual plates, these can be provided with different temperatures on the heating surface. Since the corrugated cardboard layers are usually wetter outside than inside, the outer plates, for example, can be at a higher temperature than the middle ones. With the help of the heating device according to the invention, it is possible in a simple manner to keep the dehumidification taking place during heating uniform and thus to avoid later curvatures of the corrugated cardboard.
Es versteht sich, daß alle Sektionen mit nebeneinander angeordneten, getrennt beheizbaren Heizplatten versehen sein können.It goes without saying that all sections can be provided with juxtaposed, separately heated heating plates.
Eine weitere Ausgestaltung der Erfindung besteht darin, daß in Laufrichtung vor der Heizvorrichtung jeweils einerHeizplatte ein Feuchtigkeitsfühler zugeordnet ist. Die Feuchtigkeitsfühler messen den Feuchtigkeitsgehalt der jeweils den zugeordneten Heizplatten zugeführten Bahnstreifen, damit die Wärmezufuhr zu den jeweiligen Heizplatten in entsprechender Weise eingestellt werden können. Derartige Feuchtigkeitsfühler sind an sich bekannt und arbeiten berührungslos zum Beispiel auf Infrarot- oder Mikrowellenbasis. Mit Hilfe derartiger Feuchtigkeitsfühler ist es nach einer weiteren Ausgestaltung aus möglich, diese mit der Steuervorrichtung zu koppeln zwecks automatischer Steuerung der Temperatur der einzelnen Heizplatten.A further embodiment of the invention consists in that a moisture sensor is assigned to each heating plate in the running direction in front of the heating device. The moisture sensors measure the moisture content of the web strips supplied to the respective heating plates, so that the heat supply to the respective heating plates can be adjusted in a corresponding manner. Such moisture sensors are known per se and work without contact, for example on an infrared or microwave basis. With the aid of such moisture sensors, according to a further embodiment, it is possible to couple them to the control device for the purpose of automatically controlling the temperature of the individual heating plates.
Wenn nach einer weiteren Ausgestaltung der Erfindung in Laufrichtung hinter der Heizvorrichtung weitere den Heizplatten zugeordnete Feuchtigkeitsfühler angeordnet sind, die mit einem Regler verbunden sind, indem die gemessenen Feuchtigkeitswerte mit jeweils einem Sollwert verglichen werden zwecks Verstellung der Wärmezufuhr zu den Heizplatten mittels der Steuervorrichtung, läßt sich darüber hinaus der Grad der Entfeuchtung automatisch regeln. Dadurch wird nicht nur eine gleichmäßige Trocknung erreicht, sondern auch der Trocknungsgrad bestimmbar.If, according to a further embodiment of the invention, further moisture sensors assigned to the heating plates are arranged in the running direction behind the heating device and are connected to a controller by comparing the measured moisture values with a setpoint value in each case in order to adjust the heat supply to the heating plates by means of the control device also regulate the degree of dehumidification automatically. This not only ensures uniform drying, but also the degree of drying can be determined.
Eine weitere Ausgestaltung der Erfindung sieht vor, daß ein Geschwindigkeitsfühler die Bahngeschwindigkeit der Wellpappe mißt und ein Signal auf die Steuervorrichtung gibt zwecks Steuerung der Wärmezufuhr zu den Heizplatten in Abhängigkeit von der Bahngeschwindigkeit. Wie oben bereits erwähnt, ist es zweckmäßig, die Wärmezufuhr zu den Heizplatten in Abhängigkeit von der Wellpappengeschwindigkeit einzustellen.Another embodiment of the invention provides that a speed sensor the web speed of the corrugated cardboard measures and gives a signal to the control device to control the supply of heat to the heating plates depending on the web speed. As already mentioned above, it is expedient to adjust the heat supply to the heating plates as a function of the speed of the corrugated cardboard.
Es versteht sich, daß auch eine Steuerung der Wärmezufuhr zu den Heizplatten in den einzelnen hintereinander angeordneten Sektionen vorgenommen werden kann. Dies ist jedoch an sich bekannt. Üblicherweise werden die vorderen Heizplatten stärker als die hinteren beheizt, um eine Beeinträchtigung durch zu große Wärmezufuhr bei bereits weitgehend getrocknetem Material zu verhindern.It goes without saying that the heat supply to the heating plates can also be controlled in the individual sections arranged one behind the other. However, this is known per se. Usually, the front heating plates are heated more than the rear ones, in order to prevent impairment due to excessive heat input when the material is already largely dry.
Wenn weiter oben von Heizplatten, die erfindungsgemäß nebeneinander angeordnet sind, die Rede ist, versteht sich, daß die Erfindung auch solche Konstruktionen einschließt, welche eine Unterteilung der Heizfläche quer zur Vorschubrichtung vorsieht. Denkbar wäre auch eine durchgehende Heizplatte in Querrichtung, die in einzelne voneinander weitgehend wärmeisolierte Kammern unterteilt ist.If there is talk above of heating plates which are arranged next to one another according to the invention, it goes without saying that the invention also includes constructions which provide for a subdivision of the heating surface transverse to the feed direction. A continuous heating plate in the transverse direction would also be conceivable, which is subdivided into individual chambers which are largely thermally insulated from one another.
Es ist bekannt, die Heiz- und Kühlpartie einer Wellpappenbeklebemaschine über die Breitseite der Wellpappenbahn unmittelbar oder über einen Beschwergurt mit Druckluft zu beaufschlagen. Auf diese Weise wird eine besonders günstige Druckverteilung erzielt, die sich vorteilhaft auf den Beklebe- und Trocknungsvorgang der Wellpappenbahn auswirkt. Außerdem können Hoch- und Tieferscheinungen, die durch Ausfallen einer oder mehrerer Wellen entstehen, durch die Druckluftbeaufschlagung ausgeglichen werden und haben keinen nachteiligen Einfluß mehr auf die Qualität der Wellpappe. Schließlich wird durch den gleichmäßigen Flächendruck auch der Wärmeübergang von den Heizplatten auf die Wellpappenbahn verbessert und dadurch die Verarbeitung schwerer Papiere bei hoher Durchlaufgeschwindigkeit möglich. Es ist auch bekannt, mehrere haubenartig Druckluftvorrichtungen in Förderrichtung hintereinander anzuordnei Eine Ausgestaltung der Erfindung sieht in diesem Zusammenhang vor, daß in mindestens einem Abschnitt zwei oder mehr getrennte Drucklufthauben quer zur Vorschubrichtung angeordnet und getrennt steuerbar sind.It is known for the heating and cooling section of a corrugated cardboard gluing machine to be pressurized with compressed air directly over the broad side of the corrugated cardboard web or via a weight belt. On In this way, a particularly favorable pressure distribution is achieved, which has an advantageous effect on the gluing and drying process of the corrugated cardboard web. In addition, high and low phenomena caused by the failure of one or more waves can be compensated for by the compressed air and no longer have an adverse effect on the quality of the corrugated cardboard. Finally, the uniform surface pressure also improves the heat transfer from the heating plates to the corrugated cardboard web, making it possible to process heavy papers at high throughput speeds. It is also known to arrange a plurality of hood-like compressed air devices one behind the other in the conveying direction. One embodiment of the invention provides in this connection that in at least one section two or more separate compressed air hoods are arranged transversely to the feed direction and can be controlled separately.
Bei der bekannten Vorrichtung befindet sich in der Druckvorrichtung ein Lüfter, oder die Druckvorrichtung wird über einen oder mehrere Schläuche mit einer Druckluftquelle verbunden. Bei der erfindungsgemäßen Vorrichtung läßt sich nun der Luftdruck in jeder Unterhaube getrennt einstellen, so daß über die Breite der Heizvorrichtung eine unterschiedliche Belastung der Wellpappenbahn eingestellt werden kann. Da, wie bereits erwähnt, die Belastung auch den Wärmeübergang beeinflußt, läßt sich mit Hilfe der erfindungsgemäßen Maßnahme die Entfeuchtung über die Breite der Wellpappenbahn zusätzlich zu den unterteilten Heizplatten steuern.In the known device, a fan is located in the printing device, or the printing device is connected to a compressed air source via one or more hoses. In the device according to the invention, the air pressure in each sub-hood can now be set separately, so that a different loading of the corrugated cardboard web can be set over the width of the heating device. Since, as already mentioned, the load also influences the heat transfer, the measure according to the invention can be used Control dehumidification across the width of the corrugated cardboard web in addition to the divided heating plates.
Üblicherweise haben die Beklebemaschinen mehrere Sektionen hintereinander, die nach der Erfindung jeweils mit mehreren quer angeordneten Heizplatten versehen sind. In diesem Zusammenhang sieht eine Ausgestaltung der Erfindung vor, daß die Drucklufthauben jeweils einen Heizplattenabschnitt überdecken und in der Zahl und Anordnung so gewählt sind, daß sie sich über die Trennlinie zwischen in Querrichtung benachbarten Heizplatten hinwegerstrecken. Auf diese Weise kann der mehr oder weniger scharfe Übergang zwischen den in Querrichtung benachbarten Heizplatten bei unterschiedlichen Temperaturen ausgeglichen werden.Usually, the gluing machines have several sections in a row, which according to the invention are each provided with a plurality of heating plates arranged transversely. In this context, an embodiment of the invention provides that the compressed air hoods each cover a heating plate section and are selected in number and arrangement such that they extend over the dividing line between heating plates adjacent in the transverse direction. In this way, the more or less sharp transition between the adjacent heating plates in the transverse direction can be compensated for at different temperatures.
Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand von Zeichnungen näher erläutert.An embodiment of the invention is explained below with reference to drawings.
- Fig. 1 zeigt äußerst schematisch in Draufsicht eine Beklebemaschine nach der Erfindung.Fig. 1 shows an extremely schematic plan view of a gluing machine according to the invention.
- Fig. 2 zeigt schematisch ein Blockbild der Wirkungsweise der Vorrichtung nach der Erfindung.Fig. 2 shows schematically a block diagram of the operation of the device according to the invention.
- Fig. 3 zeigt perspektivisch schematisch eine Beklebemaschine nach der Erfindung.3 schematically shows a gluing machine according to the invention in perspective.
Die gezeigte Vorrichtung nach Fig. 1 ist in drei Sektionen A, B, C unterteilt. Jede Sektion enthält längliche rechteckige Heizplatten 10, und zwar fünf Platten 10 parallel nebeneinander angeordnet. Sie liegen auf einer nicht weiter im einzelnen dargestellten und beschriebenen Rahmenkonstruktion 11. Die Anzahl und die Abmessungen der Heizplatten 10 ist derart, daß die Gesamtbreite der durch die einzelnen Heizplatten 10 ist derart, daß die Gesamtbreite der durch die einzelnen Heizplatten gebildeten Gesamtheizfläche breiter ist als die größte Bahnbreite. Die Vorschubrichtung ist durch den Pfeil 12 dargestellt. Jede Heizplatte 10 ist mit zwei Anschlüssen 13, 14 versehen für die Zufuhr bzw. Abfuhr von Heizmedium, zum Beispiel Dampf, Wie später noch erläutert wird, kann die Zufuhr des Heizmediums zu jeder einzelnen Heizplatte 10 separat gesteuert werden.The device shown in FIG. 1 is divided into three sections A, B, C. Each section contains elongated
Jeder Reihe von Heizplatten 10, zum Beispiel A1, B1 und C1 ist jeweils ein Feuchtigkeitsfühler 15 zugeordnet. Die Feuchtigkeitsfühler 15 sind von bekannter Bauart und können berührungslos arbeitende Mikroqellensensoren sein. Auch hinter der Heizvorrichtung können den einzelnen Reihen der Heizplatten 10 Feuchtigkeitsfühler 16 zugeordnet werden.A
In Fig. 2 ist eine Steuervorrichtung, die auch einen Regler enthalten kann, mit 17 bezeichnet. Von ihr gehen entsprechende Steuer- bzw. Stellbefehle an Regelventile 18. Jeder Heizplatte 10 ist ein Regelventil 18 zugeordnet. Ein Geschwindigkeitsfühler 19 gibt ein Geschwindigkeitssignal auf die Steuervorrichtung 17.In Fig. 2, a control device, which may also include a controller, is designated 17. Corresponding control or setting commands go to control
Messen die Feuchtigkeitsfühler 15 in den Randzonen eine höhere Bahnfeuchtigkeit als in der Mitte, erfolgt über die Regelventile 18 eine entsprechende Steuerung der Wärmezufuhr. Beispielsweise können die Randplatten A1 und A5 eine Temperatur von 180°C an der Heizfläche aufweisen, während die übrigen A2 bis A4 eine Temperatur von zum Beispiel 100°C haben. Da die meiste Feuchtigkeit in der ersten Sektion A abgebaut wird, werden die nächsten Sektionen B und C wie üblich mit niedrigen Temperaturen betrieben. Mit Hilfe der Feuchtigkeitsfühler 16 kann auch eine Regelung in der Weise vorgenommen werden, daß der Feuchtigkeitsgrad bzw. der Trocknungsgrad einstellbar wird.If the
Der Geschwindigkeitsfühler 19 sorgt für eine geschwindigkeitsabhängige Beheizung der Heizplatten 10.The
In Fig. 3 sind jeweils drei Sektionen der im einzelnen nicht erläuterten Beklebemaschine mit Heizplatten 30 versehen, ähnlich den Heizplatten A1 bis A5, B1 bis B5 bzw. C1 bis C5 nach Fig. 1. Den einzelnen Abschnitten sind Hauben D1 bis D3, E1 bis E3 sowie F1 bis F3 zugeordnet. Ihre Länge entspricht dabei der Länge der Heizplatten 30. Sie haben jedoch eine größere Breite. Da die Breite der Druckhauben größer ist als die der Heizplatten, werden die in Längsrichtung verlaufenden Trennlinien zwischen den einzelnen Heizplatten 30 immer von einer Druckhaube überdeckt.In FIG. 3, three sections of the gluing machine (not explained in detail) are provided with
Die Druckhauben D1 bis D3, E1 bis E3 bzw. F1 bis F3 werden jeweils mit einem eigenen Lüfter versorgt bzw. von einer gemeinsamen Druckluftquelle, wobei jedoch die Verbindung von der Druckluftquelle zu den einzelnen Hauben derart steuerbar ist, daß der Druck innerhalb der Hauben veränderbar ist. Wie aus Fig. 3 ersichtlich, erstreckt sich die in Förderrichtung gesehen letzte Haube G über die gesamte Breite der Beklebemaschine.The pressure hoods D1 to D3, E1 to E3 or F1 to F3 are each supplied with their own fan or from a common compressed air source, but the connection from the compressed air source to the individual hoods can be controlled in such a way that the pressure within the hoods can be changed is. 3, the last hood G seen in the conveying direction extends over the entire width of the gluing machine.
Die Steuerung der Druckluftbeaufschlagung innerhalb der beschriebenen Hauben kann ebenfalls mit Hilfe der Feuchtigkeitsfühler 15, 16 gemäß Fig. 2 erfolgen. Ihre Signale steuern daher außer den Regelventilen 18 für die Dampfzufuhr weitere Regelventile für die Druckluftzufuhr zu den Hauben bzw. die Lüfterantriebe innerhalb der Hauben.The control of the compressed air supply within the hoods described can also be carried out with the aid of the
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT84108648T ATE29851T1 (en) | 1983-08-19 | 1984-07-21 | HEATING DEVICE FOR CORRUGATED BOARD IN A CORRUGATED BOARD GLUING MACHINE. |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3329928 | 1983-08-19 | ||
| DE3329928 | 1983-08-19 | ||
| DE3400333 | 1984-01-07 | ||
| DE3400333A DE3400333C2 (en) | 1983-08-19 | 1984-01-07 | Heating device for corrugated cardboard in a corrugated cardboard gluing machine |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0135052A2 true EP0135052A2 (en) | 1985-03-27 |
| EP0135052A3 EP0135052A3 (en) | 1986-03-05 |
| EP0135052B1 EP0135052B1 (en) | 1987-09-23 |
Family
ID=25813320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP84108648A Expired EP0135052B1 (en) | 1983-08-19 | 1984-07-21 | Heating device for corrugated board in a machine for uniting the corrugated board with a web |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4556444A (en) |
| EP (1) | EP0135052B1 (en) |
| JP (1) | JPH0612918Y2 (en) |
| DE (2) | DE3400333C2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1987005062A1 (en) * | 1986-02-24 | 1987-08-27 | Cornelis Hendrikus Alsema | Heating system with a sectionwise controllable heat supply for paper webs in a running state |
| FR2697201A1 (en) * | 1992-10-28 | 1994-04-29 | Saint Gobain Papier Bois Gie C | Method and device for manufacturing corrugated cardboard. |
| FR2720682A1 (en) * | 1994-06-03 | 1995-12-08 | Marquip Inc | Adjustable ballast system control in a double-sided gluing device. |
| WO1998028127A1 (en) * | 1996-12-20 | 1998-07-02 | Molins Plc | Manufacture of corrugated board |
| CN104875426A (en) * | 2015-05-18 | 2015-09-02 | 马鞍山山鹰纸箱纸品有限公司 | Multi-wall corrugated board production line |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3521842C1 (en) * | 1985-06-19 | 1986-10-30 | Jagenberg AG, 4000 Düsseldorf | Transport device for flat objects, such as cardboard blanks, sheets or the like. |
| JPS63136921U (en) * | 1987-03-02 | 1988-09-08 | ||
| GB8916373D0 (en) * | 1989-07-18 | 1989-09-06 | Simon Container Mach Ltd | A heat transfer system |
| US5183525A (en) * | 1990-05-24 | 1993-02-02 | United Container Machinery Group, Inc. | Heater for a double facing corrugating machine |
| US5244518A (en) * | 1990-11-02 | 1993-09-14 | Stickle Steam Specialties Co. Inc. | Corrugated board manufacturing apparatus and process including precise web moisture and temperature control |
| CH684688A5 (en) * | 1990-11-14 | 1994-11-30 | Bobst Sa | Assembly device for strip element composed of superimposed layers and glued to a corrugated board production machine. |
| JPH05338067A (en) * | 1992-06-05 | 1993-12-21 | Mitsubishi Heavy Ind Ltd | Single facer |
| GB2299543B (en) * | 1995-04-06 | 1997-07-16 | Scm Container Mach Ltd | A heat transfer system |
| GB2303385A (en) * | 1995-07-14 | 1997-02-19 | Scm Container Mach Ltd | Apparatus for producing corrugated paperboard |
| FR2744387B1 (en) * | 1996-02-01 | 1998-04-17 | Rufo Donato | PROCESS AND DEVICE FOR THE CONTINUOUS MANUFACTURE OF SHEETS OF COMPACT MULTILAYER CARTON |
| US5788803A (en) * | 1996-10-16 | 1998-08-04 | Interfic, Inc. | Corrugated paperboard manufacturing apparatus with controllable preheating |
| US6110095A (en) * | 1997-04-18 | 2000-08-29 | United Container Machinery Inc. | Apparatus for heating corrugated paperboard |
| US5915295A (en) * | 1997-10-15 | 1999-06-29 | Corrugated Gear And Services, Inc. | Machine for manufacturing corrugated board with heat exchangers on both sides of the board |
| US5948197A (en) * | 1998-03-04 | 1999-09-07 | Marquip, Inc. | Air pressure assisted beltless holddown for double backer |
| US6074520A (en) * | 1998-04-08 | 2000-06-13 | Marquip, Inc. | Heated holddown mat for corrugator double backer |
| DE19821222A1 (en) | 1998-05-12 | 1999-11-18 | Peters W Maschf | Device for spatially resolved preheating of a material web |
| US6390963B1 (en) | 1998-11-30 | 2002-05-21 | Corrugated Gear & Services, Inc. | Corrugated board manufacturing apparatus including a preheater section with a variable heat transfer system and a hotplate section with a passive hold-down mechanisim |
| JP3492304B2 (en) * | 2000-09-22 | 2004-02-03 | 三菱重工業株式会社 | Double facer for corrugated sheet manufacturing system |
| AU2003211912B2 (en) * | 2002-02-05 | 2007-12-13 | Mitsubishi Heavy Industries, Ltd. | Production system for corrugated cardboard sheets |
| JP2008055602A (en) * | 2004-12-14 | 2008-03-13 | Kazuo Uetake | Corrugation machine and double facer hot plate |
| WO2010061841A1 (en) * | 2008-11-25 | 2010-06-03 | 三菱重工業株式会社 | Heat plate for manufacturing double-sided corrugated cardboard sheet, and double facer |
| JP6205962B2 (en) * | 2013-08-06 | 2017-10-04 | アイキ工業株式会社 | Method and apparatus for producing corrugated paper |
| US20150306836A1 (en) * | 2014-04-29 | 2015-10-29 | Greif Packaging Llc | Method and apparatus for manufacturing corrugated paperboard |
| GB2619716A (en) * | 2022-06-13 | 2023-12-20 | Corridoor Ltd | Heating apparatus, corrugator system, and method |
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|---|---|---|---|---|
| DE1206718B (en) * | 1959-04-22 | 1965-12-09 | Beloit Iron Works | Drying device for fibrous webs |
| US3149013A (en) * | 1960-06-16 | 1964-09-15 | Gen Foods Corp | Method for attaching a backing to a fibrous body |
| US3175300A (en) * | 1962-03-12 | 1965-03-30 | Koppers Co Inc | Mechanism for controlling the heating of corrugated board by injection of an air film between the board and heating surface |
| US3226840A (en) * | 1962-03-26 | 1966-01-04 | Samuel M Langston Co | Double facer paperboard air lift method and apparatus |
| FR93156E (en) * | 1962-04-10 | 1969-02-21 | Koppers Co Inc | Improvements in the manufacture of double-sided corrugated cardboard. |
| US3319353A (en) * | 1964-03-30 | 1967-05-16 | Niwa Machinery Company Ltd | Pressing and drying devices for corrugated board manufacturing equipment |
| FR1449593A (en) * | 1964-04-27 | 1966-05-06 | Niwa Machinary Co | Pressing and drying plant for corrugated board manufacturing equipment |
| US3340125A (en) * | 1964-12-18 | 1967-09-05 | Koppers Co Inc | Adhesive bonding method and apparatus |
| US3358378A (en) * | 1965-04-19 | 1967-12-19 | Thilmany Pulp & Paper Company | Method and apparatus for measurement of moisture |
| US3434901A (en) * | 1965-10-23 | 1969-03-25 | West Virginia Pulp & Paper Co | Method for manufacturing corrugated board |
| FR1502060A (en) * | 1966-10-05 | 1967-11-18 | Koppers Co Inc | Adhesive assembly method and apparatus |
| US3861057A (en) * | 1972-04-13 | 1975-01-21 | Peters Maschf Werner H K | Heating apparatus for material in strip form |
| US3829338A (en) * | 1972-06-14 | 1974-08-13 | Harris Intertype Corp | Double facer machine heat control |
| DE2458415A1 (en) * | 1974-02-25 | 1975-08-28 | Copar Corp | METHOD AND DEVICE FOR CONTROLLING THE QUANTITY OF A SINGLE-LAYERED MATERIAL WITHIN A STORAGE AREA FLOWS FROM A TREATMENT STATION PROCESSING THE SINGLE-LAYERED MATERIAL TO A DOUBLE-LAYERED MATERIAL |
| US3922129A (en) * | 1974-05-10 | 1975-11-25 | William V Mcdonald | Corrugating system employing controllable steam shower |
| US3981758A (en) * | 1974-11-04 | 1976-09-21 | Koppers Company, Inc. | Process control system for corrugators |
| US4042446A (en) * | 1975-08-14 | 1977-08-16 | Henry Simon Limited | Corrugated board-making machinery |
| US4169007A (en) * | 1977-10-26 | 1979-09-25 | Flynn Drying System, Inc. | Dryer-cooling machine for producing corrugated doubleface corrugated board |
-
1984
- 1984-01-07 DE DE3400333A patent/DE3400333C2/en not_active Expired
- 1984-07-21 DE DE8484108648T patent/DE3466364D1/en not_active Expired
- 1984-07-21 EP EP84108648A patent/EP0135052B1/en not_active Expired
- 1984-08-09 US US06/639,683 patent/US4556444A/en not_active Expired - Lifetime
-
1991
- 1991-05-15 JP JP1991044109U patent/JPH0612918Y2/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1987005062A1 (en) * | 1986-02-24 | 1987-08-27 | Cornelis Hendrikus Alsema | Heating system with a sectionwise controllable heat supply for paper webs in a running state |
| FR2697201A1 (en) * | 1992-10-28 | 1994-04-29 | Saint Gobain Papier Bois Gie C | Method and device for manufacturing corrugated cardboard. |
| EP0595711A1 (en) * | 1992-10-28 | 1994-05-04 | Centre De Recherche Saint-Gobain Papier-Bois Gie | Method and apparatus for the manufacture of corrugated cardboard |
| FR2720682A1 (en) * | 1994-06-03 | 1995-12-08 | Marquip Inc | Adjustable ballast system control in a double-sided gluing device. |
| WO1998028127A1 (en) * | 1996-12-20 | 1998-07-02 | Molins Plc | Manufacture of corrugated board |
| CN104875426A (en) * | 2015-05-18 | 2015-09-02 | 马鞍山山鹰纸箱纸品有限公司 | Multi-wall corrugated board production line |
| CN104875426B (en) * | 2015-05-18 | 2017-04-12 | 马鞍山祥恒包装有限公司 | Multi-wall corrugated board production line |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3400333C2 (en) | 1986-08-21 |
| JPH0489332U (en) | 1992-08-04 |
| EP0135052A3 (en) | 1986-03-05 |
| DE3466364D1 (en) | 1987-10-29 |
| EP0135052B1 (en) | 1987-09-23 |
| JPH0612918Y2 (en) | 1994-04-06 |
| US4556444A (en) | 1985-12-03 |
| DE3400333A1 (en) | 1985-03-07 |
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