EP0574873B1 - Single-facer - Google Patents

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Publication number
EP0574873B1
EP0574873B1 EP93109520A EP93109520A EP0574873B1 EP 0574873 B1 EP0574873 B1 EP 0574873B1 EP 93109520 A EP93109520 A EP 93109520A EP 93109520 A EP93109520 A EP 93109520A EP 0574873 B1 EP0574873 B1 EP 0574873B1
Authority
EP
European Patent Office
Prior art keywords
cassette
upper cassette
sides
fact
supporting
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
EP93109520A
Other languages
German (de)
French (fr)
Other versions
EP0574873A1 (en
Inventor
Jean-Claude Rebeaud
Jens Schulz
Martin Hoffmann
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.)
Peters Maschinenfabrik GmbH
Original Assignee
Peters Maschinenfabrik GmbH
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 Peters Maschinenfabrik GmbH filed Critical Peters Maschinenfabrik GmbH
Publication of EP0574873A1 publication Critical patent/EP0574873A1/en
Application granted granted Critical
Publication of EP0574873B1 publication Critical patent/EP0574873B1/en
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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
    • B31F1/2845—Details, e.g. provisions for drying, moistening, pressing
    • B31F1/2863—Corrugating cylinders; Supporting or positioning means therefor; Drives therefor
    • B31F1/2868—Exchangeable corrugating cylinders
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1025—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina to form undulated to corrugated sheet and securing to base with parts of shaped areas out of contact

Definitions

  • the present invention relates to a "single-sided" station for a machine for manufacturing corrugated cardboard comprising a frame composed of a base flanked by two side walls between which are installed a lower pressure cylinder and an upper cassette supporting a pair of cylinders stacked grooves.
  • the "single sided" station is located upstream of a corrugated cardboard manufacturing machine.
  • a first sheet of paper is corrugated by passing between two fluted cylinders, an upper and a lower.
  • a sizing cylinder located substantially at the height of the lower fluted cylinder deposits glue on the ridges of the corrugated paper before application of a second facing paper by a pressure cylinder located under the lower fluted cylinder.
  • the cylinders are simply mounted in bearings permanently fixed in the station frame.
  • cassettes containing the pair of grooved cylinders with their bearings and drive motors have been produced for larger machines, cassettes which can then be removed laterally, by rolling them over rails integral with the frame and then on rails belonging to a carriage.
  • a particularly large machine in which a cassette can be mounted in an upper space of the frame to allow lowering, in an orthogonal direction, a second cassette thus allowing a very rapid exchange of the grooved cylinders and thereby a change in the profile of the grooves.
  • Each of the cassettes can also be removed laterally for exchange of the grooved cylinders or for their maintenance.
  • the object of the present invention is to obtain a “single-sided” station with cassettes which is compact and whose design makes it possible to simplify the production in order to reduce the costs accordingly.
  • the design of the structure must be such that the mounting and fixing of the cassettes is rapid and solid, while preserving sufficient spaces for access and maintenance of all the components.
  • the operation of this station must be reliable, that is to say efficient for the production of quality corrugated cardboard, while ensuring flexible operation having a vibration regime of the station which is the lowest. possible.
  • a "single-sided" station for a machine for manufacturing corrugated cardboard comprising a frame composed of a base flanked by two side walls between which are installed a lower pressure cylinder and an upper cassette supporting a pair of fluted cylinders superimposed, characterized in that the lower pressing cylinder is installed in a lower cassette bearing against a seat face and an orthogonal support face are arranged, facing one another, in the front edge of each side walls, said bearing faces of the lower cassette being oriented obliquely to the horizontal and the upper cassette bearing, for its part, against the upper face of the lower cassette as well as against guide faces, parallel to the bearing faces of the lower cassette, extending substantially in the same plane as that defined by the bearing faces i of the lower cassette, said guide faces of the upper cassette also being arranged, facing one another, in the front edge of each of the side walls and in that holding means exert downward traction on anchoring points located on the rear face of the upper cassette to hold the lower and upper cassettes against their seating faces , respective guidance and support
  • a traction exerted downwards by the fixing means simultaneously blocks in a coordinated manner the cassettes supporting the pressure cylinder and the grooved cylinders.
  • the action and feedback forces are notably judiciously distributed along the lines of separation between the cassettes and / or their support surfaces of the frame.
  • the cassettes are designed so that the bearing faces of the lower cassette and the guide faces of the upper cassette extend in two planes, oriented obliquely and offset with respect to each other.
  • bearing faces of the lower cassette and the guide faces of the upper cassette are oriented obliquely at an angle between forty and eighty-five degrees relative to the horizontal.
  • the bearing faces of the lower cassette and the guide faces of the upper cassette are oriented obliquely along an angle of sixty degrees from the horizontal.
  • the means for holding the upper cassette and the lower cassette against their seat, support and guide faces consist of a pair of hydraulic cylinders each arranged on each side of the side walls of the frame, each cylinder being oriented obliquely towards the upper and lower cassettes.
  • the hydraulic cylinders are oriented obliquely at an angle of ten degrees, relative to the vertical, in the direction of the upper and lower cassettes.
  • a hydraulic cylinder is particularly rapid in that it suffices to couple its sliding rod to an anchor point on the rear face of the first cassette and to apply hydraulic pressure.
  • the upper cassette rests, by its upper rear edge, by means of rollers on a cross member of the frame, its lower front edge also being fitted with rollers cooperating with a transverse rail attached to the frame, to allow lateral extraction of said upper cassette by a translational movement.
  • FIG. 1 represents a "single-sided" station 10, the frame 1 of which comprises a base 21 flanked by two side walls 23.
  • the upper 11 and lower 13 grooved cylinders, as well as their respective bearings and drive motors 12 and 14, are mounted inside an upper cassette 50.
  • the lower grooved cylinder 13 has, in this upper cassette 50, a fixed reference position while the position of the upper grooved cylinder 11 and its bearing 12 can be adjusted and / or resiliently pushed against the lower grooved cylinder.
  • the lower pressing cylinder 15, its motor and its bearing 16 are also mounted inside a lower cassette 60 by means making it possible to adjust their position along the axis of the cassette.
  • This lower cassette 60 and this upper cassette 50 are then stacked one on the other in a seat arranged in the front edge of the side walls 23, this seat being substantially oriented towards the inside of the frame.
  • this seat is formed by a seat face 2 and an orthogonal support face 3 arranged, facing one another in the front edge of each of the side walls 23 to receive the cassette.
  • the bearing faces 3 and the guide faces 4 are located in two different planes.
  • the bearing face 3 and the guide face 4 are located in one and the same plane.
  • the bearing faces 3 and the guide faces 4 are oriented obliquely to the horizontal at an angle between forty and eighty five degrees. Preferably, and according to practical tests, this angle will be sixty degrees, the seat faces 2 then making an angle of thirty degrees relative to the horizontal, all the lower presser cylinders 15, lower grooved 13 and upper 11 being aligned along the same straight line parallel to the support 3 and guide 4 faces.
  • the upper cassette 50 comes to bear, by its lower faces, against the upper face 6 of the lower cassette 60, which rests on the seat face 2, while the upper 50 and lower 60 cassettes are supported, respectively, against the guide faces 4 and against the bearing faces 3 arranged in the front part of the side walls 23.
  • Another particularly original characteristic of the invention resides in the way in which these upper 50 and lower 60 cassettes are held together, in the seat, formed by the seat 2, support 3 and guide 4 faces, on the sole by means of a pair of hydraulic cylinders 30, oriented obliquely in the direction of the seat of the cassettes, each arranged near a wall 23 and acting, in traction, between the base 21 and an anchor point 32 located in the rear lower part of the upper cassette 50.
  • This traction effected by the hydraulic cylinders 30 causes the blocking of the lower cassette 60 which finds itself caught between the seat face 2 and the lower contact face of the upper cassette 50.
  • This traction force blocks simultaneously the upper cassette 50 against the upper face of the lower cassette 60 and against the guide face 4.
  • the line of action of the hydraulic cylinder 30 is not entirely vertical but oriented 10 degrees towards the outside of the frame 1 of the station 10, i.e. towards the lower 60 and upper 50 cassettes.
  • the upper edge of the rear face of the cassette 50 is provided with retractable rollers 52 resting on a cross member 27 of the frame 1.
  • rollers 54 can be mounted to cooperate with a transverse rail 28 also attached to the frame 1.
  • FIG. 2 is a detailed view of one of the rollers 52 of the upper part of an upper cassette 50.
  • the roller 52 is mounted on a pin 56 whose eccentric cylindrical part 59 engages in a bore machined in the tab 57 of a support 58 screwed against the face of the upper cassette 50.
  • the pin 56 is tightened against the tab 57 using a washer 61 and a nut 62 secured by a lock nut 63.
  • This arrangement allows, when it is desired to extract the cassette from the single-sided station 10, to rotate the pin 56 so that, under the effect of the eccentric of the eccentric cylindrical part 59, the roller 52, acting on the cross member 27, moves the rear face 64 of the upper cassette 50 away from its guide face 4 and therefore allows the rolling of the upper cassette 50 on the cross member 27 without friction occurring between the rear face 64 of the upper cassette 50 and its guide face 4.
  • the pins 56 When a new upper cassette 50 is put into service, the pins 56 will be retracted by rotation in the opposite direction so that the rear face 64 of the upper cassette 50 comes in contact with its guide face 4.
  • FIG. 3 is a detailed view of one of the rollers 54 of the lower part, ie the front face, of an upper cassette 50.
  • the roller 54 is mounted on a pin 67 welded to a base part 68 screwed against a support 69 itself screwed against the front face 70 of the upper cassette 50.
  • the roller 54 can roll, during the extraction of the upper cassette 50, in a rail 28 of which at least one of the ends is equipped with 'a centering means composed of a rail portion 71 which can be lowered so that its rolling face 72 comes to be located below the rolling face 73 of the rail 28 (see also Figure 4) during the actuation of the holding means.
  • the vertical movement of the rail portion 71 can be ensured by a screw 74 engaging in a thread of a lug 75 integral with the frame 1.
  • the width of the rail portions 71 is defined so that the circumference of the roller 54 come to rest on edges 76 and 77 and that this fact, the upper cassette is centered, laterally in its working position as shown in dashed lines in FIG. 4.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Making Paper Articles (AREA)

Description

La présente invention est relative à une station "simple face" pour une machine de fabrication de carton ondulé comprenant un bâti composé d'une base flanquée de deux parois latérales entre lesquelles sont installés un cylindre presseur inférieur et une cassette supérieure supportant une paire de cylindres cannelés superposés.The present invention relates to a "single-sided" station for a machine for manufacturing corrugated cardboard comprising a frame composed of a base flanked by two side walls between which are installed a lower pressure cylinder and an upper cassette supporting a pair of cylinders stacked grooves.

Généralement, la station "simple face" est située en amont d'une machine de fabrication de carton ondulé.Generally, the "single sided" station is located upstream of a corrugated cardboard manufacturing machine.

Dans une telle station, une première feuille de papier est ondulée par passage entre deux cylindres cannelés, un supérieur et un inférieur. Un cylindre encolleur situé sensiblement à hauteur du cylindre cannelé inférieur dépose de la colle sur les crêtes du papier ondulé avant application d'un second papier de parement par un cylindre presseur situé sous le cylindre cannelé inférieur.In such a station, a first sheet of paper is corrugated by passing between two fluted cylinders, an upper and a lower. A sizing cylinder located substantially at the height of the lower fluted cylinder deposits glue on the ridges of the corrugated paper before application of a second facing paper by a pressure cylinder located under the lower fluted cylinder.

Dans la plupart des machines actuelles de petites et moyennes dimensions, les cylindres sont simplement montés dans des paliers fixés à demeure dans le bâti de la station.In most of today's small and medium-sized machines, the cylinders are simply mounted in bearings permanently fixed in the station frame.

Or, il est quelquefois nécessaire de pouvoir sortir les cylindres cannelés pour maintenance et réparation. Il serait également souvent souhaitable de pouvoir sortir ces mêmes cylindres cannelés pour les échanger afin de modifier le profil de cannelure pour l'adapter au mieux en fonction de la cannelure désirée pour le carton ondulé en cours de production. Toutefois, pour ces cylindres cannelés, montés dans des paliers à demeure, l'opération de démontage est fastidieuse et prend beaucoup de temps, car il convient de commencer par basculer une importante traverse supérieure autour d'une charnière inférieure pour accéder à ces cylindres et à leurs paliers, puis de découpler les différentes liaisons du moteur d'entraînement et des canalisations d'amenée de vapeur aux cylindres cannelés et ensuite de défaire les points de fixation des paliers pour pouvoir enlever les cylindres à échanger et amener les suivants en position de travail. Compte-tenu des difficultés précédemment évoquées, on a réalisé, pour des machines de plus grandes dimensions, des cassettes contenant la paire de cylindres cannelés avec leur paliers et moteurs d'entraînement, cassettes qu'on peut alors sortir latéralement, en les roulant sur des rails solidaires du bâti et ensuite sur des rails appartenant à un chariot. On connaît également une machine particulièrement importante dans laquelle une cassette peut être montée dans un espace supérieur du bâti pour permettre d'abaisser, selon une direction orthogonale, une seconde cassette permettant ainsi un échange très rapide des cylindres cannelés et par là, un changement du profil des cannelures. Chacune des cassettes peut également être retirée latéralement pour échange des cylindres cannelés ou pour leur maintenance.However, it is sometimes necessary to be able to take out the grooved cylinders for maintenance and repair. It would also often be desirable to be able to take out these same grooved cylinders to exchange them in order to modify the groove profile to best adapt it as a function of the desired groove for the corrugated cardboard during production. However, for these fluted cylinders, mounted in permanent bearings, the disassembly operation is tedious and takes a long time, because it is necessary to start by tilting a large upper cross member around a lower hinge to access these cylinders and at their bearings, then decouple the various connections of the drive motor and steam supply pipes to the grooved cylinders and then undo the bearing fixing points to be able to remove the cylinders to be exchanged and bring the following in position job. Taking into account the difficulties previously mentioned, cassettes containing the pair of grooved cylinders with their bearings and drive motors have been produced for larger machines, cassettes which can then be removed laterally, by rolling them over rails integral with the frame and then on rails belonging to a carriage. Also known is a particularly large machine in which a cassette can be mounted in an upper space of the frame to allow lowering, in an orthogonal direction, a second cassette thus allowing a very rapid exchange of the grooved cylinders and thereby a change in the profile of the grooves. Each of the cassettes can also be removed laterally for exchange of the grooved cylinders or for their maintenance.

Toutefois, ce principe de cassettes n'a pu être appliqué actuellement que sur des machines ayant un bâti important. En effet, les grandes dimensions des cassettes et l'importance des forces mises en jeu impliquent de surdimensionner les cadres formant les parois latérales du bâti.However, this principle of cassettes could currently be applied only on machines having a large frame. Indeed, the large dimensions of the cassettes and the importance of the forces involved imply oversizing the frames forming the side walls of the frame.

Le but de la présente invention vise à obtenir une station "simple face" à cassettes qui soit compacte et dont la conception permette de simplifier la réalisation afin d'en diminuer d'autant les coûts. Notamment, la conception de la structure doit être telle que le montage et la fixation des cassettes soient rapide et solide, tout en préservant des espaces suffisants pour l'accès et la maintenance de tous les composants. De plus, comme toujours, le fonctionnement de cette station doit être fiable, c'est-à-dire efficace pour une production de carton ondulé de qualité, tout en assurant un fonctionnement souple ayant un régime vibratoire de la station qui soit le plus faible possible.The object of the present invention is to obtain a “single-sided” station with cassettes which is compact and whose design makes it possible to simplify the production in order to reduce the costs accordingly. In particular, the design of the structure must be such that the mounting and fixing of the cassettes is rapid and solid, while preserving sufficient spaces for access and maintenance of all the components. In addition, as always, the operation of this station must be reliable, that is to say efficient for the production of quality corrugated cardboard, while ensuring flexible operation having a vibration regime of the station which is the lowest. possible.

Ces buts sont réalisés par une station "simple face" pour une machine de fabrication de carton ondulé comprenant un bâti composé d'une base flanquée de deux parois latérales entre lesquelles sont installés un cylindre presseur inférieur et une cassette supérieure supportant une paire de cylindres cannelés superposés, caractérisée en ce que le cylindre presseur inférieur est installé dans une cassette inférieure prenant appui contre une face d'assise et une face d'appui orthogonal es agencées, en regard l'une de l'autre, dans le bord frontal de chacune des parois latérales, lesdites faces d'appui de la cassette inférieure étant orientées obliquement par rapport à l'horizontale et la cassette supérieure prenant, quant à elle, appui contre la face supérieure de la cassette inférieure ainsi que contre des faces de guidage, parallèles aux faces d'appui de la cassette inférieure, s'étendant, sensiblement, dans un même plan que celui défini par les faces d'appui de la cassette inférieure, lesdites faces de guidage de la cassette supérieure étant elles aussi agencées, en regard l'une de l'autre, dans le bord frontal de chacune des parois latérales et en ce que des moyens de maintien exercent une traction orientée vers le bas sur des points d'ancrage situés sur la face arrière de la cassette supérieure pour maintenir les cassettes inférieure et supérieure contre leurs faces d'assise, de guidage et d'appui respectives.These goals are achieved by a "single-sided" station for a machine for manufacturing corrugated cardboard comprising a frame composed of a base flanked by two side walls between which are installed a lower pressure cylinder and an upper cassette supporting a pair of fluted cylinders superimposed, characterized in that the lower pressing cylinder is installed in a lower cassette bearing against a seat face and an orthogonal support face are arranged, facing one another, in the front edge of each side walls, said bearing faces of the lower cassette being oriented obliquely to the horizontal and the upper cassette bearing, for its part, against the upper face of the lower cassette as well as against guide faces, parallel to the bearing faces of the lower cassette, extending substantially in the same plane as that defined by the bearing faces i of the lower cassette, said guide faces of the upper cassette also being arranged, facing one another, in the front edge of each of the side walls and in that holding means exert downward traction on anchoring points located on the rear face of the upper cassette to hold the lower and upper cassettes against their seating faces , respective guidance and support.

Grâce à cet agencement, l'accès aux cylindres cannelés par l'avant de la machine est particulièrement simplifié. Surtout, on obtient une maîtrise des répartitions des forces et de leurs lignes d'actions qui se concentrent dans la partie basse en avant du bâti.Thanks to this arrangement, access to the grooved cylinders from the front of the machine is particularly simplified. Above all, we obtain a mastery of the distribution of forces and their lines of action which are concentrated in the lower part in front of the frame.

Une traction exercée, vers le bas, par les moyens de fixation bloque simultanément de manière coordonnée les cassettes supportant le cylindre presseur et les cylindres cannelés. Les forces d'action et de contre-réaction sont notamment judicieusement réparties le long des lignes de séparation entre les cassettes et/ou leur surfaces d'appui du bâti.A traction exerted downwards by the fixing means simultaneously blocks in a coordinated manner the cassettes supporting the pressure cylinder and the grooved cylinders. The action and feedback forces are notably judiciously distributed along the lines of separation between the cassettes and / or their support surfaces of the frame.

Avantageusement, les cassettes sont conçues de telle sorte que les faces d'appui de la cassette inférieure et les faces de guidage de la cassette supérieure s'étendent dans deux plans, orientés obliquement et décalés l'un par rapport à l'autre.Advantageously, the cassettes are designed so that the bearing faces of the lower cassette and the guide faces of the upper cassette extend in two planes, oriented obliquely and offset with respect to each other.

Plus particulièrement, les faces d'appui de la cassette inférieure et les faces de guidage de la cassette supérieure sont orientées obliquement suivant un angle compris entre quarante et quatre-vingt cinq degrés par rapport à l'horizontale.More particularly, the bearing faces of the lower cassette and the guide faces of the upper cassette are oriented obliquely at an angle between forty and eighty-five degrees relative to the horizontal.

Avantageusement, les faces d'appui de la cassette inférieure et les faces de guidage de la cassette supérieure sont orientées obliquement suivant un angle de soixante degrés par rapport à l'horizontale.Advantageously, the bearing faces of the lower cassette and the guide faces of the upper cassette are oriented obliquely along an angle of sixty degrees from the horizontal.

De ce fait, une partie importante des forces provoquées par l'action des moyens de maintien se répartit ainsi de manière équilibrée, cet angle de 60 degrés constituant un excellent compromis entre les deux problèmes contradictoires que sont la flexion inhérente des cylindres de par leur poids et la minimisation des vibrations en régime de fonctionnement.Therefore, a significant part of the forces caused by the action of the holding means is thus distributed in a balanced manner, this angle of 60 degrees constituting an excellent compromise between the two contradictory problems that are the inherent bending of the cylinders due to their weight. and minimization of vibrations in operating mode.

De façon avantageuse, les moyens de maintien de la cassette supérieure et de la cassette inférieure contre leurs faces d'assise, d'appui et de guidage sont constitués par une paire de vérins hydrauliques disposés chacun de chaque côté des parois latérales du bâti, chaque vérin étant orienté obliquement en direction des cassettes supérieure et inférieure.Advantageously, the means for holding the upper cassette and the lower cassette against their seat, support and guide faces consist of a pair of hydraulic cylinders each arranged on each side of the side walls of the frame, each cylinder being oriented obliquely towards the upper and lower cassettes.

Utilement, les vérins hydrauliques sont orientés obliquement suivant un angle de dix degrés, par rapport à la verticale, en direction des cassettes supérieure et inférieure.Usefully, the hydraulic cylinders are oriented obliquely at an angle of ten degrees, relative to the vertical, in the direction of the upper and lower cassettes.

La mise en oeuvre d'un vérin hydraulique est particulièrement rapide en ce qu'il suffit d'accoupler sa tige coulissante sur un point d'ancrage de la face arrière de la première cassette et d'appliquer une pression hydraulique. De plus, on peut, à tout moment modifier la force de traction effectivement exercée par ce vérin, cela en raison des conditions momentanées de fonctionnement de la machine, par exemple, pour régler la pression d'application du papier de parement et minimiser les vibrations.The implementation of a hydraulic cylinder is particularly rapid in that it suffices to couple its sliding rod to an anchor point on the rear face of the first cassette and to apply hydraulic pressure. In addition, it is possible, at any time, to modify the tensile force actually exerted by this jack, this due to the momentary operating conditions of the machine, for example, to regulate the application pressure of the facing paper and minimize vibrations. .

Utilement encore, la cassette supérieure repose, par son bord supérieur arrière, au moyen de galets sur une traverse du bâti, son bord inférieur avant étant lui aussi équipé de galets coopérant avec un rail transversal rapporté sur le bâti, afin d'autoriser l'extraction latérale de ladite cassette supérieure par un mouvement de translation.Also usefully, the upper cassette rests, by its upper rear edge, by means of rollers on a cross member of the frame, its lower front edge also being fitted with rollers cooperating with a transverse rail attached to the frame, to allow lateral extraction of said upper cassette by a translational movement.

L'invention sera mieux comprise à l'étude d'un mode de réalisation pris à titre d'exemple non limitatif et illustré à l'aide des dessins annexés dans lesquels :

  • la figure 1 est une vue de côté en coupe partielle d'une station simple face,
  • la figure 2 est une vue de détail de l'un des galets de la partie supérieure d'une cassette supérieure,
  • la figure 3 est une vue de détail de l'un des galets de la partie inférieure d'une cassette supérieure et
  • la figure 4 est une vue de l'une des extrémités d'un rail de guidage pour les galets de la partie inférieure d'une cassette supérieure.
The invention will be better understood on studying an embodiment taken by way of nonlimiting example and illustrated with the aid of the appended drawings in which:
  • FIG. 1 is a side view in partial section of a single-sided station,
  • FIG. 2 is a detailed view of one of the rollers of the upper part of an upper cassette,
  • FIG. 3 is a detailed view of one of the rollers of the lower part of an upper cassette and
  • Figure 4 is a view of one end of a guide rail for the rollers of the lower part of an upper cassette.

La figure 1 représente une station "simple face" 10 dont le bâti 1 comprend une base 21 flanquée de deux parois latérales 23. Les cylindres cannelés supérieur 11 et inférieur 13, ainsi que leurs paliers et moteurs d'entraînement respectifs 12 et 14, sont montés à l'intérieur d'une cassette supérieure 50. Le cylindre cannelé inférieur 13 a, dans cette cassette supérieure 50, une position fixe de référence alors que la position du cylindre cannelé supérieur 11 et de son palier 12 peut être ajustée et/ou poussée de manière élastique contre le cylindre cannelé inférieur.FIG. 1 represents a "single-sided" station 10, the frame 1 of which comprises a base 21 flanked by two side walls 23. The upper 11 and lower 13 grooved cylinders, as well as their respective bearings and drive motors 12 and 14, are mounted inside an upper cassette 50. The lower grooved cylinder 13 has, in this upper cassette 50, a fixed reference position while the position of the upper grooved cylinder 11 and its bearing 12 can be adjusted and / or resiliently pushed against the lower grooved cylinder.

Plus particulièrement selon l'invention, le cylindre presseur inférieur 15, son moteur et son palier 16 sont également montés à l'intérieur d'une cassette inférieure 60 par des moyens permettant d'ajuster leur position selon l'axe de la cassette. Cette cassette inférieure 60 et cette cassette supérieure 50 sont alors empilées l'une sur l'autre dans un siège aménagé dans le bord frontal des parois latérales 23, ce siège étant sensiblement orienté vers l'intérieur du bâtiMore particularly according to the invention, the lower pressing cylinder 15, its motor and its bearing 16 are also mounted inside a lower cassette 60 by means making it possible to adjust their position along the axis of the cassette. This lower cassette 60 and this upper cassette 50 are then stacked one on the other in a seat arranged in the front edge of the side walls 23, this seat being substantially oriented towards the inside of the frame.

Plus exactement, ce siège est formé d'une face d'assise 2 et d'une face d'appui 3 orthogonales agencées, en regard l'une de l'autre dans le bord frontal de chacune des parois latérales 23 pour recevoir la cassette inférieure 60 et par des faces de guidage 4, parallèles aux faces d'appui 3 de la cassette inférieure 60, destinées à recevoir la cassette supérieure 50. On peut noter que dans la représentation faite sur la figure unique à laquelle se rapporte cette description, les faces d'appui 3 et les faces de guidage 4 se situent dans deux plans différents. On pourrait aisément imaginer, en dimensionnant en conséquence la cassette inférieure 60, que la face d'appui 3 et la face de guidage 4 soient situées dans un seul et même plan.More precisely, this seat is formed by a seat face 2 and an orthogonal support face 3 arranged, facing one another in the front edge of each of the side walls 23 to receive the cassette. lower 60 and by guide faces 4, parallel to the bearing faces 3 of the lower cassette 60, intended to receive the upper cassette 50. It may be noted that in the representation made in the single figure to which this description relates, the bearing faces 3 and the guide faces 4 are located in two different planes. One could easily imagine, by dimensioning the lower cassette 60 accordingly, that the bearing face 3 and the guide face 4 are located in one and the same plane.

Les faces d'appui 3 et les faces de guidage 4 sont orientées obliquement par rapport à l'horizontale suivant un angle compris entre quarante et quatre-vingt cinq degrés. De préférence, et selon des essais pratiques, cet angle sera de soixante degrés, les faces d'assise 2 faisant alors un angle de trente degrés par rapport à l'horizontale, tous les cylindres presseur inférieur 15, cannelés inférieur 13 et supérieur 11 étant alignés le long d'une même droite parallèle aux faces d'appui 3 et de guidage 4.The bearing faces 3 and the guide faces 4 are oriented obliquely to the horizontal at an angle between forty and eighty five degrees. Preferably, and according to practical tests, this angle will be sixty degrees, the seat faces 2 then making an angle of thirty degrees relative to the horizontal, all the lower presser cylinders 15, lower grooved 13 and upper 11 being aligned along the same straight line parallel to the support 3 and guide 4 faces.

En résumé, la cassette supérieure 50 vient prendre appui, par ses faces inférieures, contre la face supérieure 6 de la cassette inférieure 60, qui repose sur la face d'assise 2, alors que les cassettes supérieure 50 et inférieure 60 sont appuyées, respectivement, contre les faces de guidage 4 et contre les faces d'appui 3 aménagées dans la partie frontale des parois latérales 23.In summary, the upper cassette 50 comes to bear, by its lower faces, against the upper face 6 of the lower cassette 60, which rests on the seat face 2, while the upper 50 and lower 60 cassettes are supported, respectively, against the guide faces 4 and against the bearing faces 3 arranged in the front part of the side walls 23.

Une autre caractéristique particulièrement originale de l'invention réside dans le mode de maintien de ces cassettes supérieure 50 et inférieure 60 entre elles, dans le siège, formé par les faces d'assise 2, d'appui 3 et de guidage 4, au seul moyen d'une paire de vérins hydrauliques 30, orientés obliquement en direction du siège des cassettes, disposés chacun proche d'une paroi 23 et agissant, en traction, entre la base 21 et un point d'ancrage 32 situé dans la partie inférieure arrière de la cassette supérieure 50. Cette traction effectuée par les vérins hydrauliques 30 provoque le blocage de la cassette inférieure 60 qui se retrouve prise entre la face d'assise 2 et la face inférieure de contact de la cassette supérieure 50. Cette force de traction bloque simultanément la cassette supérieure 50 contre la face supérieure de la cassette inférieure 60 et contre la face de guidage 4. Comme on peut aisément s'en rendre compte au vu de la figure annexée, la position basse du point d'ancrage 32 sur cette cassette supérieure 60 l'empêche de basculer autour de son bord frontal inférieur. Toutes les forces de maintien nécessaires se retrouvent réparties régulièrement au niveau des faces d'assise 2, d'appui 3 et de guidage 4 constituant le siège, il devient, de ce fait, inutile d'adjoindre un quelconque élément supplémentaire de cadre supérieur, ou portique, pourtant initialement considéré, jusqu'alors, comme indispensable.Another particularly original characteristic of the invention resides in the way in which these upper 50 and lower 60 cassettes are held together, in the seat, formed by the seat 2, support 3 and guide 4 faces, on the sole by means of a pair of hydraulic cylinders 30, oriented obliquely in the direction of the seat of the cassettes, each arranged near a wall 23 and acting, in traction, between the base 21 and an anchor point 32 located in the rear lower part of the upper cassette 50. This traction effected by the hydraulic cylinders 30 causes the blocking of the lower cassette 60 which finds itself caught between the seat face 2 and the lower contact face of the upper cassette 50. This traction force blocks simultaneously the upper cassette 50 against the upper face of the lower cassette 60 and against the guide face 4. As can easily be seen from the appended figure, the position the anchor point 32 is lowered on this upper cassette 60 preventing it from tilting around its lower front edge. All the necessary holding forces are regularly distributed at the level of the seat 2, support 3 and guide 4 faces constituting the seat, it therefore becomes unnecessary to add any additional element of upper frame, or portal frame, yet initially considered, until then, as essential.

Avantageusement, la ligne d'action du vérin hydraulique 30 n'est pas tout à fait verticale mais orientée de 10 degrés vers l'extérieur du bâti 1 de la station 10, c'est à dire en direction des cassettes inférieure 60 et supérieure 50.Advantageously, the line of action of the hydraulic cylinder 30 is not entirely vertical but oriented 10 degrees towards the outside of the frame 1 of the station 10, i.e. towards the lower 60 and upper 50 cassettes.

Comme illustré sur la figure 1, le bord supérieur de la face arrière de la cassette 50 est muni de galets 52, escamotables, reposant sur une traverse 27 du bâti 1. En diagonale de la cassette, c'est-à-dire au niveau du bord inférieur de la face avant de la cassette supérieure 50, des galets 54 peuvent être montés pour coopérer avec un rail transversal 28 également rapporté sur le bâti 1. Après découplage du point d'ancrage 32, on peut alors extraire latéralement cette cassette supérieure 50 de la station, par un simple mouvement de translation, sur des rails (non représentés) appartenant à un chariot d'évacuation (également non représenté) préalablement positionné à l'emplacement désiré en face de la cassette supérieure 50.As illustrated in FIG. 1, the upper edge of the rear face of the cassette 50 is provided with retractable rollers 52 resting on a cross member 27 of the frame 1. Diagonally of the cassette, that is to say at the level from the lower edge of the front face of the upper cassette 50, rollers 54 can be mounted to cooperate with a transverse rail 28 also attached to the frame 1. After decoupling of the anchor point 32, this upper cassette can then be removed laterally 50 of the station, by a simple translational movement, on rails (not shown) belonging to an evacuation cart (also not shown) previously positioned at the desired location opposite the upper cassette 50.

La figure 2 est une vue de détail de l'un des galets 52 de la partie supérieure d'une cassette supérieure 50. Le galet 52 est monté sur un tourillon 56 dont la partie cylindrique excentrée 59 s'engage dans un alésage usiné dans la patte 57 d'un support 58 vissé contre la face de la cassette supérieure 50. Le tourillon 56 est serré contre la patte 57 à l'aide d'une rondelle 61 et d'un écrou 62 assuré par un contre écrou 63. Cette disposition permet, lorsque l'on désire extraire la cassette de la station simple face 10, de faire tourner le tourillon 56 de façon à ce que, sous l'effet de l'excentrique de la partie cylindrique excentrée 59, le galet 52, agissant sur la traverse 27, éloigne la face postérieure 64 de la cassette supérieure 50 de sa face de guidage 4 et de ce fait, autorise le roulement de la cassette supérieure 50 sur la traverse 27 sans qu'un frottement se produise entre la face postérieure 64 de la cassette supérieure 50 et sa face de guidage 4. Lors de la mise en service d'une nouvelle cassette supérieure 50, les tourillons 56 seront escamotés par une rotation en sens inverse de façon à ce que la face postérieure 64 de la cassette supérieure 50 vienne en contact avec sa face de guidage 4. Nous verrons par la suite que cette action sur le tourillon 56 doit s'effectuer en même temps ou quelque peu après que l'on ait libéré le galet 54 de la face avant de la cassette supérieure 50 de ses moyens de centrage agencés dans le rail transversal 28. Tel que représenté sur la figure 2, la traverse 27 est fixée sur des équerres 65, vissées contre les parois latérales 23, de telle sorte que le plan de roulement 66 de cette traverse 27 soit en alignement avec la face d'appui 4.FIG. 2 is a detailed view of one of the rollers 52 of the upper part of an upper cassette 50. The roller 52 is mounted on a pin 56 whose eccentric cylindrical part 59 engages in a bore machined in the tab 57 of a support 58 screwed against the face of the upper cassette 50. The pin 56 is tightened against the tab 57 using a washer 61 and a nut 62 secured by a lock nut 63. This arrangement allows, when it is desired to extract the cassette from the single-sided station 10, to rotate the pin 56 so that, under the effect of the eccentric of the eccentric cylindrical part 59, the roller 52, acting on the cross member 27, moves the rear face 64 of the upper cassette 50 away from its guide face 4 and therefore allows the rolling of the upper cassette 50 on the cross member 27 without friction occurring between the rear face 64 of the upper cassette 50 and its guide face 4. When a new upper cassette 50 is put into service, the pins 56 will be retracted by rotation in the opposite direction so that the rear face 64 of the upper cassette 50 comes in contact with its guide face 4. We will see later that this action on the journal 56 must be carried out at the same time or somewhat after the roller 54 has been released from the front face of the upper cassette 50 of its centering means arranged in the transverse rail 28. As shown in Figure 2, the crosspiece 27 is fixed on brackets 65, screwed against the side walls 23, so that the running surface 66 of this crosspiece 27 either in alignment with the support face 4.

La figure 3 est une vue de détail de l'un des galets 54 de la partie inférieure, soit la face avant, d'une cassette supérieure 50. Le galet 54 est monté sur un tourillon 67 soudé sur une pièce de base 68 vissée contre un support 69 lui-même vissé contre la face avant 70 de la cassette supérieure 50. Le galet 54 peut rouler, lors de l'extraction de la cassette supérieure 50, dans un rail 28 dont au moins l'une des extrémités est équipée d'un moyen de centrage composé d'une portion de rail 71 pouvant être abaissée de manière à ce que sa face de roulement 72 vienne se situer en dessous de la face de roulement 73 du rail 28 (voir aussi figure 4) lors de l'actionnement des moyens de maintien. Le mouvement vertical de la portion de rail 71 peut être assuré par une vis 74 s'engageant dans un filetage d'une patte 75 solidaire du bâti 1. La largeur des portions de rail 71 est définie de telle sorte que la circonférence du galet 54 vienne en appui sur les arêtes 76 et 77 et que de ce fait, la cassette supérieure soit centrée, latéralement dans sa position de travail ainsi que représenté en traits mixtes sur la figure 4.FIG. 3 is a detailed view of one of the rollers 54 of the lower part, ie the front face, of an upper cassette 50. The roller 54 is mounted on a pin 67 welded to a base part 68 screwed against a support 69 itself screwed against the front face 70 of the upper cassette 50. The roller 54 can roll, during the extraction of the upper cassette 50, in a rail 28 of which at least one of the ends is equipped with 'a centering means composed of a rail portion 71 which can be lowered so that its rolling face 72 comes to be located below the rolling face 73 of the rail 28 (see also Figure 4) during the actuation of the holding means. The vertical movement of the rail portion 71 can be ensured by a screw 74 engaging in a thread of a lug 75 integral with the frame 1. The width of the rail portions 71 is defined so that the circumference of the roller 54 come to rest on edges 76 and 77 and that this fact, the upper cassette is centered, laterally in its working position as shown in dashed lines in FIG. 4.

De nombreuses améliorations peuvent être apportées à la station "simple face" selon l'invention.Many improvements can be made to the "single-sided" station according to the invention.

Claims (7)

  1. Single-face station for a machine that produces corrugated cardboards, comprising a frame (1) which includes a stand (21) with two lateral walls (23) between which are installed a lower pressure roll (15) and an upper cassette (50) that carries a pair of superposed corrugated rolls (11, 13), characterized by the fact that the lower pressure roll (15) is installed in an lower cassette (60) lying on a resting side (2) and a supporting side (3) that are orthogonally arranged opposite one another in the front edge of every lateral wall (23), the said supporting sides (3) being orientated obliquely with regard to the horizon and the upper cassette (50) lying on the upper side (6) of the lower cassette (60) as well as on the guiding sides (4) arranged parallel to the supporting sides of the lower cassette (60), which extend almost in the same plane as the one defined by the supporting sides (3), the said guiding sides (4) being also arranged opposite one another in the front edge of every lateral wall (23), the said upper cassette (50) being on the other hand equipped with upholding means enabling its extraction from the lateral walls (23) and by the fact that the upholding means (30) exert a downward traction on the anchoring points (32) situated on the rear side of the upper cassette (50) in order to keep the lower cassette (60) and the upper cassette (50) on their respective resting, supporting and guiding sides (2, 3, 4, 6).
  2. Single-face station according to claim 1, characterized by the fact that the supporting sides (3) of the lower cassette (60) and the guiding sides (4) of the upper cassette (50) extend in two planes orientated obliquely and offset one with regard to the other.
  3. Single-face station according to claim 1, characterized by the fact that the supporting sides (3) of the lower cassette (60) and the guiding sides (4) of the upper cassette (50) are orientated obliquely according to an angle contained within 40 and 85 degrees with regard to the horizon.
  4. Single-face station according to claim 3, characterized by the fact that the supporting sides (3) of the lower cassette (60) and the guiding sides (4) of the upper cassette (50) are orientated. obliquely according to an angle of 60 degrees with regard to the horizon.
  5. Single face station according to claim 1, characterized by the fact that the upholding means (30) of the upper cassette (50) and of the lower cassette (60) on their resting, supporting and guiding sides (2, 3, 4, 6) consist of a pair of hydraulic jacks (30) arranged on either side of the lateral walls (23) of the frame (1), every jack (30) being orientated obliquely towards the upper cassette (50) and the lower cassette (60).
  6. Single-free station according to claim 5, characterized by the fact that the hydraulic jacks (30) are orientated obliquely according to an angle of 10 degrees with regard to the vertical, towards the upper cassette (50) and the lower cassette (60).
  7. Single-face station according to claim 1, characterized by the fact that the means for the extraction of the upper cassette (50) include retractable rollers (52) fitted on the upper rear edge of the upper cassette (50) and resting on a crossbar (27) of the frame (1) during the extraction operation, the means for the extraction comprising also rollers (54) fitted on the lower front edge of the upper cassette (50) and cooperating with a cross rail (28) connected to the frame (1), so as to enable the lateral extraction of the said upper cassette (50) by means of a translation movement, the said cross rail (28) being equipped with means for the lateral centring of the upper cassette.
EP93109520A 1992-06-19 1993-06-15 Single-facer Expired - Lifetime EP0574873B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH193692 1992-06-19
CH1936/92 1992-06-19

Publications (2)

Publication Number Publication Date
EP0574873A1 EP0574873A1 (en) 1993-12-22
EP0574873B1 true EP0574873B1 (en) 1996-03-13

Family

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Application Number Title Priority Date Filing Date
EP93109520A Expired - Lifetime EP0574873B1 (en) 1992-06-19 1993-06-15 Single-facer

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US (1) US5340432A (en)
EP (1) EP0574873B1 (en)
JP (1) JPH0741698B2 (en)
DE (1) DE69301776T2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69404578T2 (en) * 1993-09-07 1998-01-08 Peters W Maschf Pipe connection for exchangeable corrugated roller in a one-sided station for the production of paper products
US5611267A (en) * 1993-09-22 1997-03-18 Corrugated Gear & Services, Inc. Apparatus and method for applying variable pressure to a surface in corrugated paperboard manufacturing
US5526739A (en) * 1993-09-22 1996-06-18 Corrugated Gear & Services Inc. Apparatus for applying variable pressure to a surface
US5732622A (en) * 1997-01-24 1998-03-31 Corrugated Gear And Services Machine for manugacturing corrugated board
JP3483472B2 (en) 1998-07-15 2004-01-06 株式会社イソワ Single facer step roll transfer device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3455767A (en) * 1965-08-17 1969-07-15 Samuel M Langston Co Double deck single facer machine
DE3128587C2 (en) * 1980-08-01 1985-02-21 Rengo Co., Ltd., Osaka Corrugated cardboard machine for the production of one-sided corrugated cardboard
JPS6044331A (en) * 1983-08-23 1985-03-09 株式会社イソワ Method and device for exchanging corrugated roll of single facer
DE8331821U1 (en) * 1983-11-07 1984-02-09 Werner H.K. Peters Maschinenfabrik Gmbh, 2000 Hamburg SINGLE-SIDED CARDBOARD MACHINE
DE8331822U1 (en) * 1983-11-07 1984-02-09 Werner H.K. Peters Maschinenfabrik Gmbh, 2000 Hamburg SINGLE-SIDED CARDBOARD MACHINE
JPS60104325A (en) * 1983-11-10 1985-06-08 三菱重工業株式会社 Single facer
DE3631803A1 (en) * 1986-09-18 1988-03-31 Bhs Bayerische Berg SINGLE-SIDED CARDBOARD MACHINE

Also Published As

Publication number Publication date
EP0574873A1 (en) 1993-12-22
JPH06340013A (en) 1994-12-13
JPH0741698B2 (en) 1995-05-10
DE69301776T2 (en) 1996-08-08
US5340432A (en) 1994-08-23
DE69301776D1 (en) 1996-04-18

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