EP0038237B1 - Single face corrugating machine - Google Patents

Single face corrugating machine Download PDF

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Publication number
EP0038237B1
EP0038237B1 EP81400487A EP81400487A EP0038237B1 EP 0038237 B1 EP0038237 B1 EP 0038237B1 EP 81400487 A EP81400487 A EP 81400487A EP 81400487 A EP81400487 A EP 81400487A EP 0038237 B1 EP0038237 B1 EP 0038237B1
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EP
European Patent Office
Prior art keywords
paper
cylinder
press
smooth
cylinders
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
Application number
EP81400487A
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German (de)
French (fr)
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EP0038237A1 (en
Inventor
Daniel Berthelot
Gérard Badin
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Martin SA
Original Assignee
Martin SA
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Application filed by Martin SA filed Critical Martin SA
Publication of EP0038237A1 publication Critical patent/EP0038237A1/en
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    • 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

Definitions

  • the present invention relates to a machine for manufacturing corrugated cardboard coated on one side, commonly called “single-sided corrugator of the type according to which the pre-glued corrugated paper is applied to the cover paper by means of a smooth press. constituted by a cylinder driven in rotation (see FR-A-15 38 872).
  • paper-fluting is formed in any single-sided corrugator by passing a sheet of paper between two fluted cylinders heated by their interior space with saturated steam and applied in meshing, generally with using two cylinders.
  • glue is deposited on the top of the grooves thereof by passing it against a gluing cylinder animated with a continuous rotational movement, then the paper strip is bonded -covering on the corrugated paper by pressing them one on the other between the second grooved cylinder and a smooth cylindrical press, also heated with saturated steam and driven in synchronism with the two grooved cylinders.
  • the single-sided cardboard thus formed is then pulled upwards by passing between lifting belts.
  • the cover paper is not positively entrained in its bonding zone, but is entrained by pinching between the second grooved cylinder and the smooth press. It is therefore necessary to exert a strong pressure between the smooth press and the second grooved cylinder which on the one hand risks breaking the cover paper, which is relatively thin, and on the other hand exerts a traction on the point of glue which may cause poor bonding.
  • the cover paper is positively driven by the smooth press, so that the drawbacks of the previous devices are not found there. It is characterized in that it uses a smooth cylindrical press equipped with means for attracting the strip of cover paper in all or part of the zone of passage of said paper around said press.
  • the corrugated paper 1 is, in a conventional manner, corrugated by passing between two grooved cylinders 3 and 4 placed one above the other as shown in the drawing, then glued to a strip 2 of cover paper between the lower grooved cylinder 4 and a smooth cylinder 5, or “smooth press", to finally exit the machine in the form of a strip of single-sided corrugated cardboard 6.
  • the grooved cylinders 3 and 4 are heated by steam at a temperature of approximately 200 ° C. and under pressure of approximately 16 bars admitted by a conventional device not shown, inside these cylinders which are therefore hollow consequently, which allows the paper strip 1 to reach the optimum temperature for thermoforming the groove.
  • the fluting paper receives glue through a gluing cylinder 7 which partially dips in a glue tank 8.
  • the thickness of glue deposited on the fluting paper is adjusted by the interval existing between the cylinder 7 and an auxiliary cylinder 9, called a laminator or doctor cylinder.
  • the cover paper 2 is not only heated by passage over the smooth press 5, fitted like the cylinders 3 and 4 with a hollow interior space. 9 receiving saturated steam, but is previously preheated by passing along two preheating cylinders (10, 11) heated like all the others with saturated steam in the same way.
  • all of the cylinders (3, 4, 5, 7, 9) are driven in synchronism by the general movement of the machine, with the respective directions of rotation indicated by the arrows in the drawing. , the cylinders 10 and 11 also being free to rotate.
  • the cylinder 5, or smoothing press is provided with means making it possible to press the cover paper 2 by suction onto it over the entire portion of circumference BB ′ on which they are normally in contact. This ensures a positive drive of the strip 2 by the smooth press 5, which in particular makes it possible to reduce the pressure of the cylinder 4 on the cylinder 5 and therefore to conserve the cover paper.
  • the means of suction of the cover paper in the area BB ′ of the cylinder 5 can be very varied and can be both of the type using pneumatic suction forces and of attraction forces of another type, for example electrostatic.
  • the cylinder 5 has, as already mentioned, a hollow interior space 9 in which saturating vapor is circulated so as to preheat the sheet 2.
  • longitudinal channels 16 In the body of the ferrule formed by the cylinder 5 are pierced longitudinal channels 16 regularly distributed. Axial holes 17 of a smaller diameter are also drilled regularly ment along each channel 16 and put each of these in communication with larger cavities 18 machined on the outside of the cylinder 5.
  • each end of the cylinder 5 and on the edge thereof, is installed a fixed, sealed, hollow, arcuate sector 19, which rests on the part BB 'of the edge of the cylinder 5 which corresponds to the area of passage of the cover paper on the cylinder 5.
  • Each sector 19 is connected to a vacuum pump not shown and operating continuously.
  • each channel 16 passes alternately through the sectors 19 and then into the open air.
  • the passage in front of the sectors 19 makes it possible to transmit the depression due to the vacuum pump on the cavities 18 which correspond to the channels 16 located in said sectors.
  • the paper is consequently held by suction against the smooth cylinder 5 throughout the retaining zone encompassed by the sectors 19. The paper is then released from its force of attraction by bringing the channels 16 back into the open air when these escape sectors 19.
  • the sectors 19 encompass the entire area BB '. They could obviously include only a part of it.

Description

La présente invention se rapporte à une machine pour la fabrication de carton ondulé revêtu sur une seule face, communément appelée « onduleuse simple-face du type selon lequel le papier cannelure préencollé est appliqué sur le papier couverture par l'intermédiaire d'une presse lisse constituée par un cylindre entraîné en rotation (voir FR-A-15 38 872).The present invention relates to a machine for manufacturing corrugated cardboard coated on one side, commonly called "single-sided corrugator of the type according to which the pre-glued corrugated paper is applied to the cover paper by means of a smooth press. constituted by a cylinder driven in rotation (see FR-A-15 38 872).

D'une façon générale, le papier-cannelure est formé dans toute onduleuse simple-face par passage d'une nappe de papier entre deux cylindres cannelés chauffés par leur espace intérieur à la vapeur saturante et mis en application en engrènement, généralement à l'aide de deux vérins. Immédiatement après le thermo-formage du papier, on dépose de la colle sur le sommet des cannelures de celui-ci en le faisant passer contre un cylindre encolleur animé d'un mouvement de rotation continu, puis on réalise le collage de la bande de papier-couverture sur le papier cannelure par pression de ceux-ci l'un sur l'autre entre le second cylindre cannelé et une presse cylindrique lisse, elle aussi chauffée à la vapeur saturante et entraînée en synchronisme avec les deux cylindres cannelés. Le carton simple-face ainsi formé est alors tiré vers le haut par passage entre des courroies élévatrices.In general, paper-fluting is formed in any single-sided corrugator by passing a sheet of paper between two fluted cylinders heated by their interior space with saturated steam and applied in meshing, generally with using two cylinders. Immediately after the thermoforming of the paper, glue is deposited on the top of the grooves thereof by passing it against a gluing cylinder animated with a continuous rotational movement, then the paper strip is bonded -covering on the corrugated paper by pressing them one on the other between the second grooved cylinder and a smooth cylindrical press, also heated with saturated steam and driven in synchronism with the two grooved cylinders. The single-sided cardboard thus formed is then pulled upwards by passing between lifting belts.

Avec ces dispositifs connus, le papier couverture n'est pas entraîné positivement dans sa zone de collage, mais est entraîné par pincement entre le second cylindre cannelé et la presse lisse. Il est par suite nécessaire d'exercer une forte pression entre la presse lisse et le second cylindre cannelé ce qui d'une part risque de rompre le papier-couverture, qui est relativement fin, et d'autre part exerce une traction sur le point de colle qui risque d'entraîner un mauvais collage.With these known devices, the cover paper is not positively entrained in its bonding zone, but is entrained by pinching between the second grooved cylinder and the smooth press. It is therefore necessary to exert a strong pressure between the smooth press and the second grooved cylinder which on the one hand risks breaking the cover paper, which is relatively thin, and on the other hand exerts a traction on the point of glue which may cause poor bonding.

Dans l'onduleuse simple-face de l'invention, le papier-couverture est entraîné positivement par la presse lisse, de sorte que l'on n'y retrouve pas les inconvénients des dispositifs précédents. Elle est caractérisée en ce qu'elle utilise une presse lisse cylindrique équipée de moyens d'attraction de la bande de papier-couverture dans tout ou partie de la zone de passage dudit papier autour de ladite presse.In the single-sided corrugator of the invention, the cover paper is positively driven by the smooth press, so that the drawbacks of the previous devices are not found there. It is characterized in that it uses a smooth cylindrical press equipped with means for attracting the strip of cover paper in all or part of the zone of passage of said paper around said press.

L'invention sera explicitée plus en détails à l'aide de la description suivante d'un exemple de réalisation, en référence aux dessins annexés dans lesquels :

  • la figure 1 est une vue latérale schématique d'une onduleuse simple-face selon l'invention,
  • la figure 2 est une vue en coupe latérale de la presse lisse équipant l'onduleuse de la figure 1,
  • la figure 3 est une vue de face sur une section effectuée selon la direction AA' de la figure 2.
The invention will be explained in more detail using the following description of an exemplary embodiment, with reference to the appended drawings in which:
  • FIG. 1 is a schematic side view of a single-sided corrugator according to the invention,
  • FIG. 2 is a side section view of the smooth press fitted to the corrugator of FIG. 1,
  • FIG. 3 is a front view on a section taken in the direction AA 'of FIG. 2.

En se reportant à la figure 1, le papier-cannelure 1 est, de manière classique, ondulé par passage entre deux cylindres cannelés 3 et 4 placés l'un au-dessus de l'autre comme représenté sur le dessin, puis collé sur une bande 2 de papier-couverture entre le cylindre cannelé inférieur 4 et un cylindre lisse 5, ou « presse lisse •, pour sortir finalement de la machine sous forme d'une bande de carton ondulé simple-face 6.Referring to FIG. 1, the corrugated paper 1 is, in a conventional manner, corrugated by passing between two grooved cylinders 3 and 4 placed one above the other as shown in the drawing, then glued to a strip 2 of cover paper between the lower grooved cylinder 4 and a smooth cylinder 5, or "smooth press", to finally exit the machine in the form of a strip of single-sided corrugated cardboard 6.

Les cylindres cannelés 3 et 4 sont chauffés par de la vapeur à température de 200 °C environ et sous pression de 16 bars environ admise par un dispositif classique non représenté, à l'intérieur de ces cylindres qui sont donc creux en conséquence, ce qui permet à la bande de papier 1 d'atteindre la température optimale pour le thermo-formage de la cannelure. Le papier cannelure reçoit de la colle par un cylindre encolleur 7 qui trempe partiellement dans un bac de colle 8. L'épaisseur de colle déposée sur le papier-cannelure est réglée par l'intervalle existant entre le cylindre 7 et un cylindre auxiliaire 9, appelé cylindre lamineur ou cylindre docteur.The grooved cylinders 3 and 4 are heated by steam at a temperature of approximately 200 ° C. and under pressure of approximately 16 bars admitted by a conventional device not shown, inside these cylinders which are therefore hollow consequently, which allows the paper strip 1 to reach the optimum temperature for thermoforming the groove. The fluting paper receives glue through a gluing cylinder 7 which partially dips in a glue tank 8. The thickness of glue deposited on the fluting paper is adjusted by the interval existing between the cylinder 7 and an auxiliary cylinder 9, called a laminator or doctor cylinder.

Afin d'assurer dans des conditions de température optimales le collage du papier couverture 2 sur le papier cannelure 1, le papier couverture est non seulement chauffé par passage sur la presse lisse 5, munie comme les cylindres 3 et 4 d'un espace intérieur creux 9 recevant de la vapeur saturante, mais est auparavant préchauffé par passage le long de deux cylindres de préchauffage (10, 11) chauffés comme tous les autres à la vapeur saturante de la même manière. De manière classique pour ce genre de machine, l'ensemble des cylindres (3, 4, 5, 7, 9) est entraîné en synchronisme par le mouvement général de la machine, avec les sens de rotation respectifs indiqués par les flèches sur le dessin, les cylindres 10 et 11 étant par ailleurs libres en rotation.In order to ensure, under optimal temperature conditions, that the cover paper 2 is bonded to the corrugated paper 1, the cover paper is not only heated by passage over the smooth press 5, fitted like the cylinders 3 and 4 with a hollow interior space. 9 receiving saturated steam, but is previously preheated by passing along two preheating cylinders (10, 11) heated like all the others with saturated steam in the same way. Conventionally for this kind of machine, all of the cylinders (3, 4, 5, 7, 9) are driven in synchronism by the general movement of the machine, with the respective directions of rotation indicated by the arrows in the drawing. , the cylinders 10 and 11 also being free to rotate.

Conformément à l'invention, le cylindre 5, ou presse-lisse, est muni de moyens permettant de plaquer par aspiration le papier couverture 2 sur celui-ci sur toute la portion de circonférence BB' sur laquelle ils sont normalement en contact. On assure ainsi un entraînement positif de la bande 2 par la presse lisse 5, ce qui permet en particulier de diminuer la pression du cylindre 4 sur le cylindre 5 et donc de ménager le papier couverture.According to the invention, the cylinder 5, or smoothing press, is provided with means making it possible to press the cover paper 2 by suction onto it over the entire portion of circumference BB ′ on which they are normally in contact. This ensures a positive drive of the strip 2 by the smooth press 5, which in particular makes it possible to reduce the pressure of the cylinder 4 on the cylinder 5 and therefore to conserve the cover paper.

Les moyens d'aspiration du papier couverture dans la zone BB' du cylindre 5 peuvent être très variés et peuvent être aussi bien du type mettant en oeuvre des forces d'aspiration pneumatiques que des forces d'attraction d'un autre type, par exemple électrostatiques. On en décrira maintenant, en référence également aux figures 2 et 3, un exemple de réalisation non limitatif faisant appel à des forces d'attraction par aspiration par le vide, ou dépression.The means of suction of the cover paper in the area BB ′ of the cylinder 5 can be very varied and can be both of the type using pneumatic suction forces and of attraction forces of another type, for example electrostatic. We will now describe, with reference also to Figures 2 and 3, a non-limiting embodiment using appealing forces by vacuum suction, or depression.

Comme on peut donc le voir plus en détails sur les figures 2 et 3, le cylindre 5 possède, comme déjà mentionné, un espace intérieur creux 9 dans lequel on fait circuler de la vapeur saturante de façon à réaliser un préchauffage de la nappe 2. Dans le corps de la virole formée par le cylindre 5 sont percés des canaux longitudinaux 16 régulièrement répartis. Des trous axiaux 17 d'un plus petit diamètre sont par ailleurs percés régulièrement le long de chaque canal 16 et mettent en communication chacun de ceux-ci avec des cavités plus larges 18 usinées sur l'extérieur du cylindre 5.As can therefore be seen in more detail in FIGS. 2 and 3, the cylinder 5 has, as already mentioned, a hollow interior space 9 in which saturating vapor is circulated so as to preheat the sheet 2. In the body of the ferrule formed by the cylinder 5 are pierced longitudinal channels 16 regularly distributed. Axial holes 17 of a smaller diameter are also drilled regularly ment along each channel 16 and put each of these in communication with larger cavities 18 machined on the outside of the cylinder 5.

A chaque extrémité du cylindre 5, et sur la tranche de celui-ci, est installé un secteur 19 fixe, étanche, creux et en arc de cercle, qui s'appuie sur la partie BB' de la tranche du cylindre 5 qui correspond à la zone de passage du papier couverture sur le cylindre 5. Chaque secteur 19 est relié à une pompe à vide non représentée et fonctionnant en permanence.At each end of the cylinder 5, and on the edge thereof, is installed a fixed, sealed, hollow, arcuate sector 19, which rests on the part BB 'of the edge of the cylinder 5 which corresponds to the area of passage of the cover paper on the cylinder 5. Each sector 19 is connected to a vacuum pump not shown and operating continuously.

Lorsque le cylindre 5 tourne, chaque canal 16 passe alternativement dans les secteurs 19 puis à l'air libre. Le passage devant les secteurs 19 permet de transmettre la dépression due à la pompe à vide sur les cavités 18 qui correspondent aux canaux 16 se trouvant dans lesdits secteurs. Le papier est par suite maintenu par aspiration contre le cylindre lisse 5 dans toute la zone de retenue englobée par les secteurs 19. Le papier est ensuite libéré de sa force d'attraction par remise à l'air libre des canaux 16 lorsque ceux-ci échappent aux secteurs 19.When the cylinder 5 rotates, each channel 16 passes alternately through the sectors 19 and then into the open air. The passage in front of the sectors 19 makes it possible to transmit the depression due to the vacuum pump on the cavities 18 which correspond to the channels 16 located in said sectors. The paper is consequently held by suction against the smooth cylinder 5 throughout the retaining zone encompassed by the sectors 19. The paper is then released from its force of attraction by bringing the channels 16 back into the open air when these escape sectors 19.

Dans l'exemple représenté, les secteurs 19 englobent toute la zone BB'. Ils pourraient évidemment n'en englober qu'une partie.In the example shown, the sectors 19 encompass the entire area BB '. They could obviously include only a part of it.

Claims (2)

1. Machine for manufacturing single-face corrugated cardboard, of the type according to which the pre-gummed ribbed paper (1) is applied to the covering paper (2) by means of a smooth press (5) consisting of a cylinder driven in rotation, characterised in that the said cylindrical smooth press is equipped with means (18, 17, 16, 19) for attracting the strip of covering paper in all or part of the region (BB') where the covering paper passes round the smooth press.
2. Machine according to Claim 1, characterised in that the said attracting means are vacuum- suction means.
EP81400487A 1980-04-04 1981-03-27 Single face corrugating machine Expired EP0038237B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8007745 1980-04-04
FR8007745A FR2479871A1 (en) 1980-04-04 1980-04-04 MACHINE FOR THE MANUFACTURE OF SINGLE-SIDED CORRUGATED CARDBOARD

Publications (2)

Publication Number Publication Date
EP0038237A1 EP0038237A1 (en) 1981-10-21
EP0038237B1 true EP0038237B1 (en) 1983-05-11

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ID=9240584

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EP81400487A Expired EP0038237B1 (en) 1980-04-04 1981-03-27 Single face corrugating machine

Country Status (5)

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EP (1) EP0038237B1 (en)
JP (1) JPS56151547A (en)
DE (1) DE3160258D1 (en)
ES (1) ES501037A0 (en)
FR (1) FR2479871A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4420726A1 (en) * 1994-06-16 1995-12-21 Bhs Corr Masch & Anlagenbau Machine for producing a web of corrugated cardboard laminated at least on one side

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57182423A (en) * 1981-05-08 1982-11-10 Mitsubishi Heavy Ind Ltd Pasting device
ES2070726B1 (en) * 1993-03-24 1998-11-16 Torres Martinez M PAPER WAVY ROLLER FOR CORRUGATED CARDBOARD.
ES2110871B1 (en) * 1994-03-16 1998-11-16 Talleres Iruna S A IMPROVEMENTS IN STEAM SYSTEMS.
FR2719521B1 (en) * 1994-05-06 1996-07-19 Otor Sa Machine and method for manufacturing a single-sided corrugated sheet by gluing under tension.
FR2751584B1 (en) * 1996-07-23 1998-12-24 Otor Sa MACHINE AND METHOD FOR MANUFACTURING SINGLE-SIDED CORRUGATED SHEET WITH UPWARD TENSION
CN102198742B (en) * 2011-05-09 2012-11-28 无锡裕泰包装机械科技有限公司 Vacuum-adsorbing vacuum capacity regulating structure of corrugating machine
CN109501390B (en) * 2018-12-04 2020-07-31 绵阳赛欧德设备制造有限公司 Lower corrugated roller for corrugated paper forming
CN109624417B (en) * 2019-01-03 2020-09-11 宣城市翰昌纸制品有限公司 Corrugated paper gluing machine

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE677882C (en) 1937-01-21 1939-07-05 Rudolf Haas Dr Ing Method and device for changing the width of paper webs
FR1538872A (en) 1967-09-21 1968-09-06 Peters Maschf Werner H K Device for the production of corrugated cardboard
US3947206A (en) * 1974-10-10 1976-03-30 Westvaco Corporation Corrugating apparatus
US3972763A (en) * 1974-06-10 1976-08-03 Weyerhaeuser Company Method of laminating planar and corrugated surface defining layers of sheet material
EP0009907A1 (en) * 1978-10-05 1980-04-16 Mitsubishi Jukogyo Kabushiki Kaisha Improvements relating to a corrugating roll and to a single-facer for the production of corrugated board
EP0025759A1 (en) * 1979-09-14 1981-03-25 S.A. Martin Machine for manufacturing single-faced corrugated board

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE677882C (en) 1937-01-21 1939-07-05 Rudolf Haas Dr Ing Method and device for changing the width of paper webs
FR1538872A (en) 1967-09-21 1968-09-06 Peters Maschf Werner H K Device for the production of corrugated cardboard
US3972763A (en) * 1974-06-10 1976-08-03 Weyerhaeuser Company Method of laminating planar and corrugated surface defining layers of sheet material
US3947206A (en) * 1974-10-10 1976-03-30 Westvaco Corporation Corrugating apparatus
EP0009907A1 (en) * 1978-10-05 1980-04-16 Mitsubishi Jukogyo Kabushiki Kaisha Improvements relating to a corrugating roll and to a single-facer for the production of corrugated board
EP0025759A1 (en) * 1979-09-14 1981-03-25 S.A. Martin Machine for manufacturing single-faced corrugated board

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
OTMAR TÖPPEL: "Inverform-Verfahren", DER PAPIERMACHER, 26 September 1964 (1964-09-26), pages 149 - 151

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4420726A1 (en) * 1994-06-16 1995-12-21 Bhs Corr Masch & Anlagenbau Machine for producing a web of corrugated cardboard laminated at least on one side

Also Published As

Publication number Publication date
DE3160258D1 (en) 1983-06-16
FR2479871A1 (en) 1981-10-09
ES8206709A1 (en) 1982-01-01
EP0038237A1 (en) 1981-10-21
FR2479871B1 (en) 1982-02-26
JPS56151547A (en) 1981-11-24
ES501037A0 (en) 1982-01-01

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