EP1817159B1 - Procede et dispositif pour appliquer une substance adhesive sur un carton ondule - Google Patents

Procede et dispositif pour appliquer une substance adhesive sur un carton ondule Download PDF

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Publication number
EP1817159B1
EP1817159B1 EP04787023A EP04787023A EP1817159B1 EP 1817159 B1 EP1817159 B1 EP 1817159B1 EP 04787023 A EP04787023 A EP 04787023A EP 04787023 A EP04787023 A EP 04787023A EP 1817159 B1 EP1817159 B1 EP 1817159B1
Authority
EP
European Patent Office
Prior art keywords
adhesive
slotted nozzle
nozzle
corrugated cardboard
ribs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP04787023A
Other languages
German (de)
English (en)
Other versions
EP1817159A1 (fr
Inventor
Frank Backhaus
Roman Kappeler
Thomas Meyer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robatech AG
Original Assignee
Robatech AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robatech AG filed Critical Robatech AG
Publication of EP1817159A1 publication Critical patent/EP1817159A1/fr
Application granted granted Critical
Publication of EP1817159B1 publication Critical patent/EP1817159B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B31F1/2818—Glue application specially adapted therefor

Definitions

  • the invention relates to a device for applying adhesive to the rib side of a corrugated cardboard and to a corresponding method.
  • a corrugated board is typically a lightweight construction (sandwich construction) of cardboard, cover paper and adhesive. Corrugated board is defined by the size of the waves (also called ribs), the wave positions and the quality of the cover papers.
  • Conventional corrugating machines typically employ a system of rollers, one of which is provided with an adhesive film. As the corrugated board revolves around this roller, the adhesive film is transferred to the rib side of the board. '
  • the patent US 5,609,711 discloses an apparatus for applying adhesive, which differs from conventional roller solutions in that a nozzle selectively deposits adhesive trays on the ribs by reducing the speed of the downward movement of the nozzle to less than the speed of advancement of the corrugated cardboard.
  • the patent DE-C-515 605 discloses - to achieve a more stable structure of cartons and boxes - a corrugated paper, which is arranged diagonally to the trim edges of the upper and lower cover paper.
  • this corrugated cardboard thus coat an upper and a lower adhesive applicator roller - so still rolls in the conventional sense - obliquely employed ribs from the corrugated paper.
  • the object is achieved by a device according to claim 1 and a method according to claim 14.
  • the amount of adhesive can be greatly reduced compared to conventional devices.
  • the invention can be designed so that the adhesive consumption is about one-half the consumption of conventional systems.
  • cover paper can be used which is thinner than heretofore, since the sandwich construction is less moist after the application of the adhesive.
  • an inventive device is advantageous because it consumes less adhesive.
  • a closed adhesive circuit can be realized in which the adhesive exits only at the nozzle.
  • the process stability is improved and the reproducibility becomes better.
  • a device according to the invention can be operated at higher speeds, which results in a higher throughput.
  • a device according to the invention can start up and stop faster.
  • the application of glue takes place in a controlled manner. This eliminates intermediate storage and further steps.
  • inventive device depending on the embodiment, self-cleaning.
  • the invention relates to a device for use in the manufacture and / or processing of corrugated board.
  • a first device 10 according to the invention is shown.
  • the device 10 is specifically designed for applying adhesive to the rib side of a corrugated board 16.
  • the device 10 comprises a (slot) nozzle 15 which dispenses liquid adhesive while the rib side of the corrugated board 16 is moved past the nozzle 15 at a distance A, as indicated by the arrow X.
  • the distance A (with A ⁇ 0) is adjustable so that glue is applied to the rib side only in the upper area of the ribs.
  • the device 10 comprises an adhesive tank 11, a pump 12 and a system for flow measurement and control, which preferably comprise a flow regulator 13 and an actuator 14 in order to measure and adjust the flow.
  • adhesive is conveyed from the tank 11 into the nozzle 15.
  • the nozzle 15 is shown in a highly schematic section. Of the Adhesive enters the nozzle 15 at the top.
  • the shown (slot) nozzle 15 has an elongated outlet opening 15.1, which faces in the direction of corrugated cardboard 16.
  • the elongate outlet opening 15.1, as well as the ribs of the corrugated cardboard 16, extend substantially perpendicular to the plane of the drawing, wherein preferably the outlet opening 15.1 is slightly raised relative to the ribs (not off) Fig. 1 visible).
  • Fig. 2 shows a further inventive device 20.
  • this device 20 is a so-called nozzle chair, which can be used for example in a production line.
  • the corrugated board 16 runs as a web over two plates 28 or suitable guide elements.
  • the contact pressure of the plates 28 can be adjusted, as in Fig. 2 indicated by the double arrows 30.
  • Above the corrugated cardboard 16 sits the actual nozzle 25.
  • the nozzle 25 can be adjusted by means of adjusting mechanisms.
  • the relative position (distance A and / or angle of attack W) of the nozzle 25 with respect to the corrugated cardboard 16 can be specified.
  • means may be provided to mechanically adjust the nozzle width or the width of the nozzle exit opening.
  • the said shaft may for example be mounted in a thread of the nozzle 25, depending on the direction of rotation further into or out of a nozzle chamber. Depending on the position of the shaft, the nozzle chamber is enlarged or reduced, thereby changing the outlet opening.
  • the shaft can also carry a sliding element, which is displaced by rotation of the shaft to change the outlet opening. It can also be used a piston to adjust the nozzle outlet opening.
  • the nozzle chair can be moved up and down parallel to the axis 29 in order to adjust the distance A between the nozzle 25 and the ribs of the corrugated cardboard 16.
  • the nozzle chair 20 can preferably be adjusted by an angle W, wherein the angle of attack W is between 0 and 20 degrees, preferably between 2 and 10 degrees, as in the highly schematic plan view in FIGS. 3A and 3B indicated.
  • the nozzle 15 in Fig. 1 can be designed to be adjustable.
  • FIGS. 3A and 3B a further embodiment is shown.
  • the nozzle 35 as optional in Fig. 1 and Fig. 2 , be employed.
  • Fig. 3A is the angle W of the nozzle 35 with respect to the rib course zero degrees and the outlet opening 35.1 of the nozzle 35 thus extends parallel to the ribs of the corrugated cardboard 16.
  • Fig. 3B the angle W is greater than zero degrees and the outlet opening 35.1 of the nozzle 35 extends obliquely to the ribs of the corrugated board 16.
  • the oblique position has the advantage that the nozzle 35 is always seen over its entire length with at least one shaft in contact, if the device is operated in contact mode. In this case, the nozzle 35 meshes obliquely over the ribs of the corrugated cardboard 16.
  • the devices according to the invention can be operated as required in two different operating modes (contactless mode and contact mode). Either an embodiment can be designed so that it can be switched from one to the other mode. Or the embodiment may be specific to one of the two modes.
  • the first mode contactless mode
  • Fig. 4 there is a kind of intermittent application of adhesive in that the outlet opening 45.1 of the nozzle 45 is arranged at a distance A so close to the ribs 16.1 that a continuously exiting adhesive film 16.4 each short-term breaks and thus only the top Cover areas of the ribs 16.1 with adhesive 16.2.
  • Fig. 4 a moment is shown in which the adhesive film 16.4 just tears off after an adhesive strip 16.3 has been applied to a rib.
  • the angle W is preferably set to an angle smaller than 5 degrees.
  • the second mode (contact mode) is in Fig. 5 shown.
  • An adhesive film 16.4 is continuously discharged from the nozzle 45. Since the corrugated board 16 moves to the left relative to the nozzle, as indicated by the arrow X, the adhesive film 16.4 is stripped or separated respectively by the contact or approach of the outlet opening 45.1 at the top of the rib 16.1.
  • An adhesive film 16.4 is continuously discharged from the nozzle 45. Since the corrugated board 16 moves to the left relative to the nozzle, as indicated by the arrow X, the adhesive film 16.4 is stripped or separated respectively by the contact or approach of the outlet opening 45.1 at the top of the
  • the adhesive on the ribs 16.1 is somewhat shorter and thinner than in the first mode, but this depends on the settings (feed rate, amount of adhesive / unit time, strength of the adhesive, shape and nature of the corrugated board, etc.).
  • An adhesive strip 16.3 is being created by tearing off the adhesive film 16.4.
  • the angle W is set greater than zero degrees, with the angle W preferably being between 2 and 10 degrees.
  • a device according to the invention may be equipped with various control and control elements in order to be able to monitor the method according to the invention.
  • an ionizing bar or the like is arranged parallel to the nozzle in order to be able to influence / deflect the adhesive film 16.4 after it has emerged from the outlet opening 45.1.
  • the adhesive film 16.4 can be attracted and thus influenced.
  • the nozzles can have cleaning lips or other cleaning elements. These lips or elements can be used to clean the nozzles, since contamination can occur from the inside (by glue) and from the outside (by parts of the cardboard). It can also be arranged in the region of the outlet opening lips, which allow stripping of the adhesive film when touching or approaching a rib. These lips can be flexible to prevent damage to the rib structure. It can also be trailing lips that are pulled over the ribs and thereby release the adhesive film.
  • a cleaning element is arranged within the nozzle, which prevents the emergence and / or setting of impurities by reciprocating.
  • the nozzle is a surface nozzle or a slot nozzle having an elongated outlet opening.
  • the nozzle is preferably arranged so that over the entire length L (see Fig. 3B ) of the outlet opening of the distance A to the corrugated cardboard 16 is substantially equal.
  • the nozzle is set obliquely with respect to the course of the ribs 16.1.
  • the adhesive is scraped off at an angle and the nozzle always rests on at least one point on the corrugated cardboard. This reduces vibrations in contact mode.
  • the device thus operates quieter and the mechanical stress of the device is lower.
  • the corrugated board 16 can be moved either as a corrugated board or in the form of individual corrugated sheets on the nozzle. It is also conceivable to move the nozzle past the corrugated cardboard 16.
  • the apparatus comprises means for applying cover paper or coverboard to the adhesive ribs 16.1 to thereby produce a sandwich structure.
  • the device is realized in such a way that a closed adhesive course results, in which adhesive penetrates outward only in the region of the nozzle.
  • a nozzle which is self-cleaning.
  • the self-cleaning nozzle may, for example, have a cleaning lip, cleaning elements or the like, as described.
  • An embodiment is preferred in which the nozzle performs an oscillating transverse movement which is directed essentially in the direction of expansion of the outlet opening. This transverse movement prevents dirt from accumulating on the nozzle from the outside.
  • the distance A can be adjusted manually or by motor according to the invention and depending on the embodiment.
  • the device according to the invention may preferably be designed with means for the intermittent application of adhesive, the means preferably having a controlled lip or a controlled slide in order to interrupt the adhesive film emerging at the outlet opening or to influence the exiting amount of adhesive.
  • this influencing takes place synchronously with the passing ribs of the corrugated cardboard.
  • Such synchronization can be done by optical scanning of the corrugated board.
  • the device comprises an adhesive dispenser to uniformly introduce the adhesive (in relation to the length L) into the nozzle.
  • an adhesive application amount between 5 g / m 2 and 20 g / m 2 can be achieved.
  • the amount of adhesive applied is set between 8 g / m 2 and 14 g / m 2 .
  • the corrugated board can be moved past the nozzle at a speed between 100 m / min and 300 m / min, preferably at a speed between 120 m / min and 180 m / min.
  • a standstill pressure of the adhesive is specified in the nozzle in order to be able to deliver adhesive in the desired amount immediately after starting the device.
  • the device is provided with an automatic thickness adjustment to bring the nozzle depending on the thickness of the corrugated cardboard in a predetermined distance A.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Making Paper Articles (AREA)
  • Coating Apparatus (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Claims (15)

  1. Dispositif (10; 20; 30; 40) destiné à appliquer de la colle (16.4) sur le côté nervures (16.1) d'un carton ondulé (16), afin d'appliquer sur les nervures (16.1) revêtues de colle (16.2, 16.3) du papier ou du carton de recouvrement et générer par conséquent une structure en sandwich, dans lequel le dispositif (10; 20; 30; 40) comprend une filière plate pour enduction (15; 25; 35; 45) qui délivre de la colle liquide alors que le côté nervures (16.1) du carton ondulé (16) passe selon un écartement (A) sous la filière plate pour enduction (15; 25; 35; 45), l'écartement (A) étant réglable de façon à ce que la colle ne soit appliquée sur le côté nervures que dans la zone supérieure des nervures, et la filière plate pour enduction (15; 25; 35; 45) étant installée en oblique par rapport au parcours des nervures (16.1).
  2. Dispositif (10; 20; 30; 40) selon la revendication 1, caractérisé en ce qu'il s'agit concernant la filière plate pour enduction (15; 25; 35; 45) d'une filière pour surface qui présente une ouverture de sortie oblongue (15.1; 35.1; 45.1), la filière plate pour enduction (15; 25; 35; 45) étant disposée de façon telle que sur toute la longueur (L) de l'ouverture de sortie (15.1; 35.1; 45.1), l'écartement (A) au papier ondulé (16) est essentiellement égal.
  3. Dispositif (10; 20; 30; 40) selon la revendication 1 ou 2, caractérisé en ce que le dispositif (10; 20; 30; 40) comprend une pompe (12) et un réservoir de colle (11) pour transporter de façon continue pendant l'application de la colle depuis le réservoir (11) dans la filière plate pour enduction (15; 25; 35; 45) et de là la délivrer sous la forme d'un film de colle (16.4) continu.
  4. Dispositif (10; 20; 30; 40) selon l'une des revendications précédentes, caractérisé en ce que le carton ondulé (16) passe au niveau de la filière plate pour enduction (15; 25; 35; 45) sous la forme de feuilles individuelles de carton ondulé.
  5. Dispositif (10; 20; 30; 40) selon l'une des revendications précédentes, caractérisé en ce que la filière plate pour enduction (15; 25; 35; 45) exécute un déplacement transversal oscillant.
  6. Dispositif (10; 20; 30; 40) selon l'une des revendications précédentes, caractérisé en ce que la filière plate pour enduction (15; 25; 35; 45) est autonettoyante.
  7. Dispositif (10; 20; 30; 40) selon l'une des revendications précédentes, caractérisé en ce que l'écartement (A) peut être réglé manuellement ou de façon motorisée.
  8. Dispositif (10; 20; 30; 40) selon l'une des revendications précédentes, caractérisé en ce que la filière plate pour enduction (15; 25; 35; 45) est munie de moyens permettant une application intermittente de colle (16.2, 16.3), les moyens présentant de préférence une lèvre commandée ou un robinet commandé.
  9. Dispositif (10; 20; 30; 40) selon l'une des revendications précédentes, caractérisé en ce que le dispositif (10; 20; 30; 40) comprend un répartiteur de colle pour introduire la colle régulièrement dans la filière plate pour enduction (15; 25; 35; 45).
  10. Dispositif (10; 20; 30; 40) selon l'une des revendications précédentes, caractérisé en ce que le dispositif (10; 20; 30; 40) présente un dispositif de mesure et de régulation du débit (13, 14) avec lequel on peut commander la quantité de la colle appliquée.
  11. Dispositif (10; 20; 30; 40) selon l'une des revendications précédentes, caractérisé en ce que le dispositif (10; 20; 30; 40) est réalisé de façon telle que l'on peut atteindre pour chaque cannelure une quantité d'application de colle sur toute la surface, comprise entre 5 g/m2 et 20 g/m2, et de préférence entre 8 g/m2 et 14 g/m2.
  12. Dispositif (10; 20; 30; 40) selon l'une des revendications précédentes, caractérisé en ce que le dispositif (10; 20; 30; 40) est réalisé de façon telle que le carton ondulé (16) passe au niveau de la filière plate pour enduction (15; 25; 35; 45) avec une vitesse comprise entre 100 m/min et 300 m/min, de préférence avec une vitesse comprise entre 120 m/min et 180 m/min.
  13. Dispositif (10; 20; 30; 40) selon l'une des revendications précédentes, caractérisé en ce que le dispositif (10; 20; 30; 40) comprend un dispositif de réglage automatique de l'épaisseur afin de placer la filière plate pour enduction (15; 25; 35; 45) selon un écartement (A) prédéfini en fonction de l'épaisseur du carton ondulé (16).
  14. Procédé d'application d'une colle sur les nervures (16.1) d'un carton ondulé (16), comprenant les étapes suivantes:
    - réglage d'un écartement (A) entre une ouverture de sortie (15.1; 35.1; 45.1) d'une filière plate pour enduction (15; 25; 35; 45) et les nervures (16.1) du carton ondulé (16),
    - génération d'un déplacement relatif (X) entre le carton ondulé (16) et la filière plate pour enduction (15; 25; 35; 45), où le côté nervures (16.1) du carton ondulé (16) passe selon l'écartement (A) sous la filière plate pour enduction (15; 25; 35; 45),
    - transport d'une colle dans la filière plate pour enduction (15; 25; 35; 45), un film de colle (16.4) étant délivré par l'ouverture de sortie (15.1; 35.1; 45.1) de la filière plate pour enduction (15 25; 35; 45),
    - réglage de la vitesse du déplacement relatif (X) et de l'écartement (A) pour permettre une application de colle uniquement sur les zones supérieures des nervures (16.1),
    - réglage d'un angle d'incidence (W) de façon à ce que la filière plate pour enduction (15; 25; 35; 45) soit placée en oblique par rapport au parcours des nervures (16.1).
  15. Procédé selon la revendication 14, caractérisé en ce que lors du réglage de l'écartement (A), il se produit un contrôle acoustique du contact de la filière plate pour enduction (15; 25; 35; 45) au niveau des nervures (16.1) du carton ondulé (16).
EP04787023A 2004-09-27 2004-09-27 Procede et dispositif pour appliquer une substance adhesive sur un carton ondule Expired - Lifetime EP1817159B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2004/010805 WO2006034720A1 (fr) 2004-09-27 2004-09-27 Procede et dispositif pour appliquer une substance adhesive sur un carton ondule

Publications (2)

Publication Number Publication Date
EP1817159A1 EP1817159A1 (fr) 2007-08-15
EP1817159B1 true EP1817159B1 (fr) 2009-03-04

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ID=34958943

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04787023A Expired - Lifetime EP1817159B1 (fr) 2004-09-27 2004-09-27 Procede et dispositif pour appliquer une substance adhesive sur un carton ondule

Country Status (6)

Country Link
US (1) US20080268145A1 (fr)
EP (1) EP1817159B1 (fr)
CN (1) CN101094766B (fr)
AT (1) ATE424293T1 (fr)
DE (1) DE502004009107D1 (fr)
WO (1) WO2006034720A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI0922096B1 (pt) 2008-11-13 2019-11-12 Packsize Llc dispositivo de colagem de caixa
CN105058871A (zh) * 2015-07-29 2015-11-18 浙江大胜达包装有限公司 同质多层实时复合瓦楞纸板设备及其纸板制备方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE515605C (de) * 1929-03-23 1931-01-08 Cartonnagenindustrie Ag F Verfahren und Maschine zur Herstellung von Wellpappe mit schraeg zu den Beschnittkanten laufenden Wellenlinien
DE677758C (de) * 1934-08-18 1939-07-13 Oswald Kaeppler Verfahren und Vorrichtung zum Herstellen von Pappe, Karton oder aehnlichem Werkstoff mit schraeg zu den Beschnittkanten verlaufenden Wellungen
FR1488484A (fr) * 1965-07-21 1967-11-02
US4343259A (en) * 1980-07-11 1982-08-10 Weyerhaeuser Company Apparatus for applying adhesive in corrugated board manufacture
CN1087857A (zh) * 1992-12-11 1994-06-15 刘为成 瓦楞纸箱粘接生产方法及设备
WO1995035202A1 (fr) * 1994-06-21 1995-12-28 Miller Ray R Procede de liaison de feuilles et stratifies resultants
CN2611141Y (zh) * 2003-04-09 2004-04-14 李明山 多用瓦楞形胶水机

Also Published As

Publication number Publication date
CN101094766A (zh) 2007-12-26
CN101094766B (zh) 2010-08-11
WO2006034720A1 (fr) 2006-04-06
DE502004009107D1 (de) 2009-04-16
ATE424293T1 (de) 2009-03-15
EP1817159A1 (fr) 2007-08-15
US20080268145A1 (en) 2008-10-30

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