EP0641646B1 - Pipe coupling for interchangeable corrugating rolls within a "simple face" station for making cardboard - Google Patents

Pipe coupling for interchangeable corrugating rolls within a "simple face" station for making cardboard Download PDF

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Publication number
EP0641646B1
EP0641646B1 EP94113862A EP94113862A EP0641646B1 EP 0641646 B1 EP0641646 B1 EP 0641646B1 EP 94113862 A EP94113862 A EP 94113862A EP 94113862 A EP94113862 A EP 94113862A EP 0641646 B1 EP0641646 B1 EP 0641646B1
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EP
European Patent Office
Prior art keywords
plate
cassette
fact
connection device
centering
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EP94113862A
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German (de)
French (fr)
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EP0641646A2 (en
EP0641646A3 (en
Inventor
Gerhard Klaassen
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Peters Maschinenfabrik GmbH
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Peters Maschinenfabrik GmbH
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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

Definitions

  • the present invention relates to a pipe fitting bringing a heat-transfer fluid or a pneumatic vacuum in one or more grooved cylinders used in a "single-sided" station, located upstream of a cardboard manufacturing machine, and more particularly in cylinders liable to be changed frequently.
  • 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 the collar on the ridges of the corrugated paper before application of a second facing paper by a pressure cylinder located under the lower fluted cylinder.
  • a suction device is frequently used at the level of the lower grooved cylinder to hold the first paper in the grooves between the upper grooved roller and the lower pressure roller.
  • Such stations are, for example, described in the documents US 4,381,212 and DE 28 23 674.
  • the internal chamber of the grooved roller is permanently connected to a source of vacuum, and is pierced with a series of radial holes suction opening to the peripheral surface of the cylinder.
  • This cylinder further comprises a series of axial channels inside which steam continuously flows in and out by two coaxial channels formed in the support shaft.
  • cassettes have been produced containing the pair of grooved cylinders with their bearings and drive motors, cassettes which can then be removed laterally by rolling them from rails secured to the frame on rails belonging to a carriage.
  • An important machine is also known in which a cassette can be mounted in an upper space of the frame to allow salt to be lowered in another orthogonal direction to a second cassette, thus allowing very rapid exchange of the groove profile.
  • Each of the cassettes can also be removed laterally for exchange.
  • the object of the present invention is a pipe connection device for a cassette of fluted cylinders within a single-sided station, a device which is particularly easy, therefore quick to assemble, while remaining reliable as to the locking and sealing, especially in the case of transport of superheated steam.
  • the device comprises a first plate integral with the cassette in which sockets or plugs are mounted, each of which is connected within the cassette by a conduit to a connector located at the level of the cylinder trunnions, this plate being oriented in the direction of movement of insertion of the cassette in the working position; as well as a second plate secured to the frame and oriented opposite the first plate, second plate in which are mounted sockets or complementary plugs connected to supply or discharge conduits of the pipe.
  • the internal pipe of the cassette can thus be definitively mounted up to the first plate, and it is the same for the pipe belonging to the frame rigidly mounted up to the second plate, these two plates associating automatically during placing the cassette in the frame.
  • a male plug has a tubular nose with a chamfered external front edge, nose coming to be inserted with a peripheral contact in the internal conduit of a female socket, the length of the nose being at least equal to the half of its external diameter. It is thus possible to produce a fairly tight junction by providing a sufficient thickness of the tube making up the nose, and by machining the external diameter of the nose and the internal diameter of the conduit to a substantially identical dimension. This tightness can be confirmed by an annular seal installed in a groove made transversely to the inlet of the internal conduit of a socket. We then take advantage of the inertia of the mass of the cassette in its insertion movement to overcome the friction forces of the seals.
  • the first plate is carried by a bracket on the outside of the cassette facing a side face of the frame.
  • the connector is then no longer located on the advancing face of the cassette, but on the rear face, that is to say clearly visible to the operators pushing the cassette into its housing.
  • the second plate is held apart from the lateral face of the frame by a foot so that the supply pipes must no longer be integrated into the frame, but are easily accessible just behind the plate for intervention, if necessary.
  • the first plate is completed by a centering tenon with conical tip and of length greater than the nose of a male plug, tenon coming to engage in a centering orifice formed in correspondence in the second plate.
  • the position of a plate is then adjusted automatically at the last moment, shortly before inserting the plugs into a socket. If the position of the pin and the centering hole varies according to the type of fitting, this pin also serves as a detector element.
  • a switch actuated by the centering pin can be installed at the bottom of the centering orifice making it possible to detect the complete insertion or not of the connector before authorizing the passage of the fluid in the pipe.
  • the device using a set of radial and non-axial seals allows axial displacement of the cassette during its inevitable thermal elongation without disturbing action on the sealing of the fitting.
  • FIG. 1 is schematically illustrated, seen from the side, a cassette 10 supporting together a lower grooved cylinder 80 and an upper grooved cylinder 82, this cassette 10 being installed in the frame 20 of a single-sided station of a manufacturing machine of corrugated cardboard.
  • These cylinders are intended to be heated by steam brought to approximately 150 ° C. and brought by a pipe under a pressure of the order of 16 bars to connectors 92 located at the level of the support pins of the cylinders.
  • the steam pipe is articulated around a multiple connection 100 formed by two circular plates brought, face to face one against the other, and which can be seen in Figure 1 the first plate 30 which is integral with the cassette 10.
  • Each plate here carries four connection plugs 50.
  • the general superheated steam inlet pipe 1 is connected by a connector 90 to two fixed steam inlet ducts on the frame, each of these ducts being connected at its end to a socket secured to the plate located behind the visible plate 30.
  • the inlet duct 2 is placed in communication with the steam supply duct 6 to the lower grooved cylinder 80, and the inlet duct 3 is put in communication with the steam supply duct 4 to the upper grooved cylinder 82, these two ducts 4 and 6 now being entirely integral with the cassette 10.
  • the condensed steam from the lower grooved cylinder 80 exits through the return duct 7 then, after passing through the fitting 100, is evacuated through the duct 8 fixed to the frame. Similarly, the return of the condensed steam in the upper grooved cylinder 82 passes through the conduit 5 and then, after passing through the fitting 100, is evacuated through the conduit 9.
  • the pipeline is produced in several sections joined by connectors 90 or tightened in the plugs 50 of the connector 100 by means of nuts 95, this pipeline now being no longer disassembled except for repair reasons.
  • Figure 2 illustrates in more detail a section of the fitting 100 as seen from below.
  • the height of the upright 12 and of the cross-member 14, as well as the height of the foot 22, are established so that the plates 30 and 40 come into contact face against face when the cassette 10 itself reaches level with the lateral side of the frame 20.
  • the height of the foot 22 is established so that an elbow can be installed without difficulty directly behind the socket 60.
  • the socket 60 held by bolts 44 in the fixed plate 40, has at the front an internal conduit receiving the nose 54 and at the rear a tapping 62 provided for a tightening nut 95 of the tube.
  • the diameter of the internal conduit of the socket 60 corresponds to the external diameter of the nose 54 with a tolerance of one tenth of a millimeter.
  • the internal edge of the inlet of this conduit is also flared outward.
  • an annular seal 64 held in place by a ring 66 is installed in a transverse groove located near the entrance to this internal conduit.
  • the plate 30 connected to the cassette 10 is completed by a centering pin 32 whose end is chamfered in the shape of a truncated cone, this tenon being inserted into a centering orifice 46 formed in correspondence in the fixed plate 40.
  • This tenon is substantially more prominent than the male plugs 50 so as to be in any case the first to enter the 40 plate for ultimate centering.
  • the centering is carried out using two centering pins 32 inserted into two centering holes 46.
  • connection 100 In order to ensure the operation of the machine only when the connection 100 is operational, provision has been made to mount an electrical or proximity switch (not shown) in the foot 22, near the end of one of the orifices. centering rage 46, this contactor being actuated by the corresponding centering pin 32.
  • this multiple connector 100 automatically connects at the last moment of the insertion of the cassette 10 into the frame 20, by rolling along the rails 18, because the male plugs 50 of the plate 30 are oriented in the direction of movement of the cassette 10.
  • the centering lug 32 ensures a final adjustment, and the rigidity of the bracket 12, 14 forces the male plugs 50 into the female sockets 60 up to that the plate 30 comes to touch the face of the plate 40.
  • the kinetic energy stored in the mass of inertia of the cassette 10 ensures, at the end of the journey, sufficient forces to overcome the friction forces of the annular seals at inside the sockets 60.
  • the locking of the position of the cassette 10 in the frame with a tolerance of at least one tenth of a millimeter, jointly ensures the locking of the closure of the fitting 100.
  • the tightness of the pipe at the fitting is of a part provided by the contiguous contact between the nose 54 and the internal conduit of the female sockets 60, and above all confirmed by the annular seals.
  • the connector according to the invention is illustrated in the figures only with four connections in the context of a steam pipe, it is of course possible to provide one or more additional fittings for an air suction pipe.
  • the plates can be circular or regular polygons.
  • connection plate 30 is located in front on the other lateral face of the cassette, the plate 40 secured to the frame then being carried by a bracket opposite. Many improvements can be made to this device in the context of the invention.

Description

La présente invention est relative à un raccord de canalisation amenant un fluide caloporteur ou une dépression pneumatique dans un ou plusieurs cylindres cannelés utilisés dans une station "simple face", situé en amont d'une machine de fabrication de carton, et plus particulièrement dans des cylindres susceptibles d'être fréquemment changés.The present invention relates to a pipe fitting bringing a heat-transfer fluid or a pneumatic vacuum in one or more grooved cylinders used in a "single-sided" station, located upstream of a cardboard manufacturing machine, and more particularly in cylinders liable to be changed frequently.

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 col le 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 the collar on the ridges of the corrugated paper before application of a second facing paper by a pressure cylinder located under the lower fluted cylinder.

Afin d'assurer un collage efficace et rapide, on prévoit de chauffer les cylindres cannelés, voire le cylindre presseur, en circulant dans leur espace interne de la vapeur pressurisée et surchauffée, la vapeur condensée étant retournée à la source. Par ailleurs, on utilise fréquemment un dispositif d'aspiration au niveau du cylindre cannelé inférieur pour maintenir le premier papier dans les cannelures entre le rouleau cannelé supérieur et le rouleau presseur inférieur. De telles stations sont, par exemple, décrites dans les document US 4,381,212 et DE 28 23 674. Dans la station décrite dans le document FR 2 622 145, la chambre interne du rouleau cannelé est reliée en permanence à une source de dépression, et est percée d'une série de trous radiaux d'aspiration débouchant à la surface périphérique du cylindre. Ce cylindre comporte, de plus, une série de canaux axiaux à l'intérieur desquels circule en permanence de la vapeur entrant et sortant par deux canaux coaxiaux ménagés dans l'arbre de support.In order to ensure efficient and rapid bonding, provision is made to heat the grooved cylinders, or even the pressing cylinder, by circulating in their internal space pressurized and superheated steam, the condensed steam being returned to the source. Furthermore, a suction device is frequently used at the level of the lower grooved cylinder to hold the first paper in the grooves between the upper grooved roller and the lower pressure roller. Such stations are, for example, described in the documents US 4,381,212 and DE 28 23 674. In the station described in the document FR 2 622 145, the internal chamber of the grooved roller is permanently connected to a source of vacuum, and is pierced with a series of radial holes suction opening to the peripheral surface of the cylinder. This cylinder further comprises a series of axial channels inside which steam continuously flows in and out by two coaxial channels formed in the support shaft.

Après remontage d'un cylindre cannelé ou presseur, il est donc généralement nécessaire de raccorder une canalisation de vapeur et/ou de dépression au niveau du palier supportant le tourillon du cylindre. L'installation de chaque tuyau suppose l'insertion d'une bride dans un manchon puis le vissage d'un écrou, opérations qui s'avèrent longues et fastidieuses.After reassembly of a grooved or pressing cylinder, it is therefore generally necessary to connect a steam and / or vacuum pipe at the level of the bearing supporting the cylinder trunnion. The installation of each pipe involves the insertion of a flange in a sleeve and then the screwing of a nut, operations which prove to be long and tedious.

Or, il est fréquemment souhaitable de pouvoir rapidement sortir les cylindres cannelés pour les échanger afin de modifier le profil de cannelure dans le but de l'adapter au mieux en fonction du futur usage prévu pour le carton en cours de production. A ce titre, on a réalisé des cassettes contenant la paire de cylindres cannelés avec leurs paliers et moteurs d'entraînement, cassettes qu'on peut alors sortir latéralement en les roulant de rails solidaires du bâti sur des rails appartenant à un chariot. On connaît également un machine importante dans laquelle une cassette peut être montée dans un espace supérieur du bâti pour permettre d'abaisser sel on une autre direction orthogonale une seconde cassette permettant ainsi un échange très rapide du profil de cannelure. Chacune des cassettes peut également être retirée latéralement pour échange.However, it is frequently desirable to be able to quickly take out the grooved cylinders to exchange them in order to modify the groove profile in order to adapt it as best as possible according to the future use foreseen for the cardboard during production. As such, cassettes have been produced containing the pair of grooved cylinders with their bearings and drive motors, cassettes which can then be removed laterally by rolling them from rails secured to the frame on rails belonging to a carriage. An important machine is also known in which a cassette can be mounted in an upper space of the frame to allow salt to be lowered in another orthogonal direction to a second cassette, thus allowing very rapid exchange of the groove profile. Each of the cassettes can also be removed laterally for exchange.

Le but de la présente invention est un dispositif de raccord de canalisation pour cassette de cylindres cannelés au sein d'une station simple face, dispositif qui soit particulièrement facile, donc rapide à assembler, tout en restant fiable quant au verrouillage et à l'étanchéité, notamment en cas de transport de vapeur surchauffée.The object of the present invention is a pipe connection device for a cassette of fluted cylinders within a single-sided station, a device which is particularly easy, therefore quick to assemble, while remaining reliable as to the locking and sealing, especially in the case of transport of superheated steam.

Ces buts sont réalisés du fait que le dispositif comprend une première plaque solidaire de la cassette dans laquelle sont montées des prises ou fiches dont chacune est reliée au sein de la cassette par un conduit à un connecteur situé au niveau des tourillons de cylindres, cette plaque étant orientée dans le sens de déplacement d'insertion de la cassette en position de travail; ainsi qu'une seconde plaque solidaire du bâti et orientée en vis-à-vis de la première plaque, seconde plaque dans laquelle sont montées des prises ou fiches complémentaires reliées à des conduits d'amenée ou d'évacuation de la canalisation.These goals are achieved by the fact that the device comprises a first plate integral with the cassette in which sockets or plugs are mounted, each of which is connected within the cassette by a conduit to a connector located at the level of the cylinder trunnions, this plate being oriented in the direction of movement of insertion of the cassette in the working position; as well as a second plate secured to the frame and oriented opposite the first plate, second plate in which are mounted sockets or complementary plugs connected to supply or discharge conduits of the pipe.

La canalisation interne de la cassette peut ainsi être montée de manière définitive jusqu'à la première plaque, et il en est de même pour la canalisation appartenant au bâti montée rigidement jusqu'à la seconde plaque, ces deux plaques s'associant automatiquement lors de la mise en position de la cassette dans le bâti.The internal pipe of the cassette can thus be definitively mounted up to the first plate, and it is the same for the pipe belonging to the frame rigidly mounted up to the second plate, these two plates associating automatically during placing the cassette in the frame.

Selon un mode de réalisation préféré, une fiche mâle présente un nez tubulaire avec un bord frontal externe chanfreiné, nez venant s'insérer avec un contact périphérique dans le conduit interne d'une prise femelle, la longueur du nez étant au moins égale à la moitié de son diamètre externe. On peut ainsi réaliser une jonction passablement étanche en prévoyant une épaisseur suffisante du tube composant le nez, et en usinant le diamètre externe du nez et le diamètre interne du conduit à une cote sensiblement identique. Cette étanchéite peut être confirmée par un joint annulaire installé dans une rainure ménagée transversalement à l'entrée du conduit interne d'une prise femelle. On profite alors de l'inertie de la masse de la cassette dans son mouvement d'insertion pour surmonter les forces de friction des joints.According to a preferred embodiment, a male plug has a tubular nose with a chamfered external front edge, nose coming to be inserted with a peripheral contact in the internal conduit of a female socket, the length of the nose being at least equal to the half of its external diameter. It is thus possible to produce a fairly tight junction by providing a sufficient thickness of the tube making up the nose, and by machining the external diameter of the nose and the internal diameter of the conduit to a substantially identical dimension. This tightness can be confirmed by an annular seal installed in a groove made transversely to the inlet of the internal conduit of a socket. We then take advantage of the inertia of the mass of the cassette in its insertion movement to overcome the friction forces of the seals.

Avantageusement, la première plaque est portée par une potence sur l'extérieur de la cassette en vis-à-vis d'une face latérale du bâti. Le raccord ne se situe alors plus sur la face avançante de cassette, mais en face arrière, c'est-à-dire bien visible au niveau des opérateurs poussant la cassette dans son logement. Avantageusement alors, la seconde plaque est tenue écartée de la face latérale du bâti par un pied faisant que les tuyaux d'amenée ne doivent plus être intégrés dans le bâti, mais sont d'accès aisé juste derrière la plaque pour intervention, si nécessaire.Advantageously, the first plate is carried by a bracket on the outside of the cassette facing a side face of the frame. The connector is then no longer located on the advancing face of the cassette, but on the rear face, that is to say clearly visible to the operators pushing the cassette into its housing. Advantageously then, the second plate is held apart from the lateral face of the frame by a foot so that the supply pipes must no longer be integrated into the frame, but are easily accessible just behind the plate for intervention, if necessary.

Utilement, la première plaque est complétée par un tenon de centrage à embout conique et de longueur supérieure au nez d'une fiche mâle, tenon venant s'engager dans un orifice de cent rage ménagé en correspondance dans la seconde plaque. L'ajustement de la position d'une plaque se fait alors automatiquement au dernier moment, peu avant l'insertion des fiches dans une prise. Si la position du tenon et de l'orifice de centrage varie en fonction du type de raccord, ce tenon sert alors également d'organe détecteur.Usefully, the first plate is completed by a centering tenon with conical tip and of length greater than the nose of a male plug, tenon coming to engage in a centering orifice formed in correspondence in the second plate. The position of a plate is then adjusted automatically at the last moment, shortly before inserting the plugs into a socket. If the position of the pin and the centering hole varies according to the type of fitting, this pin also serves as a detector element.

Utilement encore, un interrupteur actionné par le tenon de centrage peut être installé au fond de l'orifice de centrage permettant de détecter l'insertion complète ou non du raccord avant d'autoriser la passage du fluide dans la canalisation.Also usefully, a switch actuated by the centering pin can be installed at the bottom of the centering orifice making it possible to detect the complete insertion or not of the connector before authorizing the passage of the fluid in the pipe.

Les avantages du dispositif selon l'invention résident essentiellement dans le fait que toute manipulation de raccords individuels de la part de l'opérateur est supprimée, augmentant de ce fait la rapidité des opérations de couplage ou de découplage des conduites de fluide.The advantages of the device according to the invention lie essentially in the fact that any manipulation of individual fittings on the part of the operator is eliminated, thereby increasing the speed of coupling or decoupling of fluid lines.

De plus, le dispositif utilisant un ensemble de joints radiaux et non axiaux autorise un déplacement axial de la cassette lors de son élongation thermique inévitable sans action perturbatrice sur l'étanchéité du raccord.In addition, the device using a set of radial and non-axial seals allows axial displacement of the cassette during its inevitable thermal elongation without disturbing action on the sealing of the fitting.

L'invention sera mieux comprise à l'étude d'un mode de réalisation pris à titre nullement limitatif et décrit par les figures suivantes :

  • la figure 1 est une vue schématique de côté du raccord sel on l'invention installé sur la face latérale d'un bâti supportant une cassette, et
  • la figure 2 est une vue en coupe transversale du raccord.
The invention will be better understood from the study of an embodiment taken without any limitation being implied and described by the following figures:
  • FIG. 1 is a schematic side view of the salt or invention connector installed on the side face of a frame supporting a cassette, and
  • Figure 2 is a cross-sectional view of the connector.

Sur la figure 1 est illustrée schématiquement, vue de côté, une cassette 10 supportant ensemble un cylindre cannelé inférieur 80 et un cylindre cannelé supérieur 82, cette cassette 10 étant installée dans le bâti 20 d'une station simple face d'une machine de fabrication de carton ondulé. Ces cylindres sont prévus d'être réchauffés par de la vapeur portée à environ 150°C et amenée par une canalisation sous une pression de l'ordre de 16 bars jusqu'à des connecteurs 92 situés au niveau des tourillons de support des cylindres.In FIG. 1 is schematically illustrated, seen from the side, a cassette 10 supporting together a lower grooved cylinder 80 and an upper grooved cylinder 82, this cassette 10 being installed in the frame 20 of a single-sided station of a manufacturing machine of corrugated cardboard. These cylinders are intended to be heated by steam brought to approximately 150 ° C. and brought by a pipe under a pressure of the order of 16 bars to connectors 92 located at the level of the support pins of the cylinders.

Plus particulièrement selon l'invention, la canalisation de vapeur s'articule autour d'un raccord multiple 100 formé de deux plaques circulaires amenées, face à face l'une contre l'autre, et dont on peut observer sur la figure 1 la première plaque 30 qui est solidaire de la cassette 10. Chaque plaque porte ici quatre fiches 50 de raccord.More particularly according to the invention, the steam pipe is articulated around a multiple connection 100 formed by two circular plates brought, face to face one against the other, and which can be seen in Figure 1 the first plate 30 which is integral with the cassette 10. Each plate here carries four connection plugs 50.

Plus précisément, le conduit d'arrivée général de vapeur surchauffée 1 est relié par un raccord 90 à deux conduits d'arrivée de vapeur fixes sur le bâti, chacun de ces conduits étant relie en son extrémité à une prise solidaire de la plaque située derrière la plaque visible 30. Dans ce raccord 100, le conduit d'arrivée 2 est mis en communication avec le conduit d'amenée 6 de vapeur au cylindre cannelé inférieur 80, et le conduit d'arrivée 3 est mis en communication avec le conduit d'amenée 4 de vapeur au cylindre cannelé supérieur 82, ces deux conduits 4 et 6 étant maintenant entièrement solidaires de la cassette 10.More specifically, the general superheated steam inlet pipe 1 is connected by a connector 90 to two fixed steam inlet ducts on the frame, each of these ducts being connected at its end to a socket secured to the plate located behind the visible plate 30. In this connection 100, the inlet duct 2 is placed in communication with the steam supply duct 6 to the lower grooved cylinder 80, and the inlet duct 3 is put in communication with the steam supply duct 4 to the upper grooved cylinder 82, these two ducts 4 and 6 now being entirely integral with the cassette 10.

La vapeur condensée du cylindre cannelé inférieur 80 sort par le conduit de retour 7 puis, après avoir traversé le raccord 100, est évacuée par le conduit 8 fixé au bâti. De manière similaire, le retour de la vapeur condensée dans le cylindre cannelé supérieur 82 passe dans le conduit 5 puis, après avoir traversé le raccord 100, est évacuée par le conduit 9.The condensed steam from the lower grooved cylinder 80 exits through the return duct 7 then, after passing through the fitting 100, is evacuated through the duct 8 fixed to the frame. Similarly, the return of the condensed steam in the upper grooved cylinder 82 passes through the conduit 5 and then, after passing through the fitting 100, is evacuated through the conduit 9.

Comme illustré sur cette figure 1, la canalisation est réalisée en plusieurs tronçons réunis par des raccords 90 ou serrés dans les fiches 50 du raccord 100 au moyen d'écrous 95, cette canalisation n'étant maintenant plus démontée que pour des raisons de réparation.As illustrated in this FIG. 1, the pipeline is produced in several sections joined by connectors 90 or tightened in the plugs 50 of the connector 100 by means of nuts 95, this pipeline now being no longer disassembled except for repair reasons.

La figure 2 illustre plus en détail une coupe du raccord 100 tel que vu par en-dessous.Figure 2 illustrates in more detail a section of the fitting 100 as seen from below.

Ce raccord comprend d'une part, côté bâti 20, une plaque 40 fixée au travers d'une plaque intermédiaire 24 à un pied 22, lui-même fixé contre la face latérale du bâti 20. Le pied 22 peut être tubulaire ou profilé en H pour autant qu'il soit dimensionné de manière à être très rigide.This connection comprises on the one hand, on the frame side 20, a plate 40 fixed through an intermediate plate 24 to a foot 22, itself fixed against the lateral face of the frame 20. The foot 22 can be tubular or profiled in H as long as it is dimensioned so as to be very rigid.

Ce raccord 100 comprend d'autre part une plaque 30 reliée à la cassette 10 par une potence composée d'un montant 12 et d'une traverse 14. Sous la traverse 14 sont installées des pattes de fixation 16 permettant de maintenir la plaque 30 au moyen de tiges filetées 70 verrouillées par un écrou 72 et un contre-écrou 74, les tiges filetées 70 passant dans des trous oblongs 71 aménagés dans les pattes de fixation 16 de façon à autoriser un déplacement vertical, de l'ordre de dix millimètres, de la cassette 10, lors de son extraction de la machine, en dégageant ainsi celle-ci du bâti 20. Lors de ce déplacement vertical, la plaque 30 reste solidaire de la plaque 40 alors que la potence 12 se déplace avec la cassette 10. L'étanchéité du raccord 100 reste donc parfaite lors du déplacement vertical de la cassette 10. En référence aux figures 1 et 2, le montant 12 et la traverse 14 peuvent être des pièces tubulaires ou profilées en T ou en H pour autant que leurs dimensions, notamment leur épaisseur, soient établies à des valeurs suffisantes pour assurer une rigidité rigoureuse.This connection 100 further comprises a plate 30 connected to the cassette 10 by a bracket composed of an upright 12 and a cross member 14. Under the cross member 14 are installed fixing lugs 16 making it possible to hold the plate 30 by means of threaded rods 70 locked by a nut 72 and a lock nut 74, the threaded rods 70 passing through oblong holes 71 arranged in the fixing lugs 16 so as to allow vertical movement, on the order of ten millimeters, from the cassette 10, when it is extracted from the machine, thereby releasing the latter from the frame 20. During this vertical displacement, the plate 30 remains integral with the plate 40 while the bracket 12 moves with the cassette 10. The tightness of the connector 100 therefore remains perfect during the vertical displacement of the cassette 10. With reference to FIGS. 1 and 2, the upright 12 and the cross-member 14 can be tubular or T-shaped parts or in H provided that their dimensions, in particular their thickness, are established at values sufficient to ensure rigorous rigidity.

Comme bien illustré sur cette figure 2, la hauteur du montant 12 et de la traverse 14, ainsi que la hauteur du pied 22, sont établies de telle sorte que les plaques 30 et 40 viennent en contact face contre face au moment où la cassette 10 arrive elle-même à niveau avec le côté latéral du bâti 20.As well illustrated in this FIG. 2, the height of the upright 12 and of the cross-member 14, as well as the height of the foot 22, are established so that the plates 30 and 40 come into contact face against face when the cassette 10 itself reaches level with the lateral side of the frame 20.

Par ailleurs, la hauteur du pied 22 est établie de telle sorte que l'on puisse installer sans difficulté un coude directement à l'arrière d'une prise 60.Furthermore, the height of the foot 22 is established so that an elbow can be installed without difficulty directly behind the socket 60.

Comme illustré sur la figure 2, la plaque 30 supporte des fiches mâles 50 vissées par des boulons 34. La fiche mâle présente à l'arrière un taraudage 52 recevant un écrou de serrage de tube 95 (figure 1). A l'avant, cette fiche mâle 50 présente un nez 54 sensiblement tubulaire hormis le bord externe qui est chanfreiné.As illustrated in FIG. 2, the plate 30 supports male plugs 50 screwed by bolts 34. The male plug has at the rear a thread 52 receiving a tube clamping nut 95 (FIG. 1). At the front, this male plug 50 has a substantially tubular nose 54 except for the outer edge which is chamfered.

En correspondance, la prise femelle 60, tenue par des boulons 44 dans la plaque fixe 40, présente à l'avant un conduit interne recevant le nez 54 et à l'arrière un taraudage 62 prévu pour un écrou de serrage 95 de tube. Le diamètre du conduit interne de la prise 60 correspond au diamètre externe du nez 54 avec une tolérance d'un dixième de millimètre. De plus, le bord interne de l'entrée de ce conduit est également évasé vers l'extérieur. Enfin, un joint annulaire 64 tenu en place par une bague 66 est installé dans une rainure transversale située proche de l'entrée de ce conduit interne.In correspondence, the socket 60, held by bolts 44 in the fixed plate 40, has at the front an internal conduit receiving the nose 54 and at the rear a tapping 62 provided for a tightening nut 95 of the tube. The diameter of the internal conduit of the socket 60 corresponds to the external diameter of the nose 54 with a tolerance of one tenth of a millimeter. In addition, the internal edge of the inlet of this conduit is also flared outward. Finally, an annular seal 64 held in place by a ring 66 is installed in a transverse groove located near the entrance to this internal conduit.

Afin d'assurer une parfaite coïncidence entre les plaques 30 et 40, donc entre les nez 54 des fiches 50 et les conduits internes des prises 60, la plaque 30 reliée à la cassette 10 est complétée par un tenon de centrage 32 dont l'extrémité est chanfreinée en une forme de tronc de cône, ce tenon venant s'insérer dans un orifice de centrage 46 ménagé en correspondance dans la plaque fixe 40. Ce tenon est sensiblement plus proéminent que les fiches mâles 50 de manière à être en tous les cas le premier à pénétrer dans la plaque 40 pour centrage ultime. Dans une autre forme d'exécution du dispositif, non représentée sur les dessins, le centrage est réalisé à l'aide de deux tenons de cent rage 32 venant s'insérer dans deux orifices de centrage 46.In order to ensure perfect coincidence between the plates 30 and 40, therefore between the noses 54 of the plugs 50 and the internal conduits of the sockets 60, the plate 30 connected to the cassette 10 is completed by a centering pin 32 whose end is chamfered in the shape of a truncated cone, this tenon being inserted into a centering orifice 46 formed in correspondence in the fixed plate 40. This tenon is substantially more prominent than the male plugs 50 so as to be in any case the first to enter the 40 plate for ultimate centering. In another embodiment of the device, not shown in the drawings, the centering is carried out using two centering pins 32 inserted into two centering holes 46.

Afin de n'assurer le fonctionnement de la machine que lorsque le raccord 100 est opérationnel, on a prévu de monter un contacteur électrique ou de proximité (non représenté) dans le pied 22, au voisinage de l'extrémité de l'un des orifices de cent rage 46, ce contacteur étant actionné par le tenon de centrage 32 correspondant.In order to ensure the operation of the machine only when the connection 100 is operational, provision has been made to mount an electrical or proximity switch (not shown) in the foot 22, near the end of one of the orifices. centering rage 46, this contactor being actuated by the corresponding centering pin 32.

A la lecture de ce qui précède, on se rend compte que ce raccord multiple 100 se branche automatiquement au dernier moment de l'insertion de la cassette 10 dans le bâti 20, par roulement le long des rails 18, du fait que les fiches mâles 50 de la plaque 30 sont orientées dans le sens du déplacement de la cassette 10. Simultanément, le tenon de centrage 32 assure un ultime ajustement, et la rigidité de la potence 12, 14 force les fiches mâles 50 dans les prises femelles 60 jusqu'à ce que la plaque 30 vienne toucher la face de la plaque 40. L'énergie cinétique emmagasinée dans la masse d'inertie de la cassette 10 assure, en fin de parcours, des forces suffisantes pour vaincre les forces de friction des joints annulaires à l'intérieur des prises femelles 60.On reading the above, we realize that this multiple connector 100 automatically connects at the last moment of the insertion of the cassette 10 into the frame 20, by rolling along the rails 18, because the male plugs 50 of the plate 30 are oriented in the direction of movement of the cassette 10. Simultaneously, the centering lug 32 ensures a final adjustment, and the rigidity of the bracket 12, 14 forces the male plugs 50 into the female sockets 60 up to that the plate 30 comes to touch the face of the plate 40. The kinetic energy stored in the mass of inertia of the cassette 10 ensures, at the end of the journey, sufficient forces to overcome the friction forces of the annular seals at inside the sockets 60.

Le verrouillage de la position de la cassette 10 dans le bâti, avec une tolérance d'au moins un dixième de millimètre, assure conjointement le verrouillage de la fermeture du raccord 100. L'étanchéité de la canalisation au niveau du raccord est d'une part assurée par le contact jointif entre le nez 54 et le conduit interne des prises femelles 60, et surtout confirmée par les joints annulaires.The locking of the position of the cassette 10 in the frame, with a tolerance of at least one tenth of a millimeter, jointly ensures the locking of the closure of the fitting 100. The tightness of the pipe at the fitting is of a part provided by the contiguous contact between the nose 54 and the internal conduit of the female sockets 60, and above all confirmed by the annular seals.

Si le raccord selon l'invention n'est illustré sur les figures qu'avec quatre liaisons dans le cadre d'une canalisation de vapeur, on peut, bien entendu, prévoir un ou plusieurs raccords supplémentaires pour une canalisation d'aspiration d'air. De plus, les plaques peuvent être circulaires ou des polygones réguliers. Egalement, de manière symétrique, on peut envisager que la plaque de raccord 30 soit située en avant sur l'autre face latérale de la cassette, la plaque 40 solidaire du bâti étant alors portée par une potence en vis-à-vis. De nombreuses améliorations peuvent être apportées à ce dispositif dans le cadre de l'invention.If the connector according to the invention is illustrated in the figures only with four connections in the context of a steam pipe, it is of course possible to provide one or more additional fittings for an air suction pipe. . In addition, the plates can be circular or regular polygons. Also, symmetrically, it can be envisaged that the connection plate 30 is located in front on the other lateral face of the cassette, the plate 40 secured to the frame then being carried by a bracket opposite. Many improvements can be made to this device in the context of the invention.

Claims (7)

  1. Conduit connection device for a cassette containing fluted cylinders used in a "single-face" station, characterized by the fact that the said device includes a first plate (30) that is secured to the cassette (10) and is provided with sockets or plugs (50), each of which being linked in the cassette by means of a duct (4, 5, 6, 7) to a connector (92) located at the level of the trunnions of the cylinders, this plate being orientated in the traveling direction of insertion of the cassette in operative position, as well as a second plate (40) that is secured to the frame (20) and is orientated opposite the first plate, the latter second plate being provided with complementary sockets or plugs (60) which are linked to inlet or outlet ducts (1, 2, 8, 9) of the conduit.
  2. Connection device according to claim 1, characterized by the fact that a plug (50) has a tubular nose (54) with a chamfered outer front edge, a periphery of the latter nose engages the inner duct of a socket (60), the length of the nose being at least half its outer diameter.
  3. Connection device according to claim 2, characterized by the fact that a ring-shaped seal (64) is set in a groove arranged crosswise to the inlet of the inner duct of a socket (60).
  4. Connection device according to one of the aforesaid claims, characterized by the fact that the first plate (30) is supported by a bracket (12, 14) on the outer side of the cassette (10) opposite a lateral side of the frame (20).
  5. Connection device according to claim 4, characterized by the fact that the second plate (40) is held at a position away from the lateral side of the frame (20) by a foot (22).
  6. Connection device according to one of the claims 2 to 5, characterized by the fact that the first plate (30) is completed with at least one centering tenon (32) having a tapered tip and a length being greater than the nose (54) of a plug (50), the latter tenon engaging in a centering orifice (46) arranged in correspondance in the second plate (40).
  7. Connection device according to claim 6, characterized by the fact that a switch actuated by one of the centering tenons (32) is located in the foot (22) in the vicinity of the centering orifice (46).
EP94113862A 1993-09-07 1994-09-03 Pipe coupling for interchangeable corrugating rolls within a "simple face" station for making cardboard Expired - Lifetime EP0641646B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2653/93 1993-09-07
CH265393 1993-09-07

Publications (3)

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EP0641646A2 EP0641646A2 (en) 1995-03-08
EP0641646A3 EP0641646A3 (en) 1995-11-29
EP0641646B1 true EP0641646B1 (en) 1997-07-30

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Application Number Title Priority Date Filing Date
EP94113862A Expired - Lifetime EP0641646B1 (en) 1993-09-07 1994-09-03 Pipe coupling for interchangeable corrugating rolls within a "simple face" station for making cardboard

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US (1) US5553894A (en)
EP (1) EP0641646B1 (en)
DE (1) DE69404578T2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080206016A1 (en) * 2005-07-21 2008-08-28 Thompson Steven L Encapsulated fastener and method and tooling for manufacturing same

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* Cited by examiner, † Cited by third party
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US3125361A (en) * 1964-03-17 Tube harness
GB1134411A (en) * 1965-01-22 1968-11-20 Foster Wheeler Ltd The testing of tube and shell heat exchangers for tube failure
FR1551816A (en) * 1967-01-25 1968-12-27
US4177102A (en) * 1976-04-19 1979-12-04 Rengo Co., Ltd. Single facer for manufacturing single-faced corrugated board
FR2350496A1 (en) * 1976-05-03 1977-12-02 Matra Engins AUTOMATIC CONNECTOR AND APPLICATION OF THE DIT CONNECTOR TO SUBMARINE CONNECTION MODULES
JPS5453096A (en) * 1977-10-03 1979-04-26 Isowa Industry Co Core holder for apparatus for making oneeside corrugated cardboard
DE2823674C2 (en) * 1978-05-31 1983-05-05 BHS-Bayerische Berg-, Hütten- und Salzwerke AG, 8000 München Device for holding a corrugated web of corrugated cardboard to be provided with a cover layer on at least one side on a corrugated roller
US4320694A (en) * 1979-10-04 1982-03-23 Caterpillar Tractor Co. Hydraulic manifold assembly
US4381212A (en) * 1980-02-20 1983-04-26 Molins Machine Company, Inc. Fingerless single facer
US4426104A (en) * 1981-10-21 1984-01-17 Nl Industries, Inc. Underwater connector apparatus
DE3336658A1 (en) * 1983-10-08 1985-04-25 Ingenioerfirma Peter Simonsen A/S, 6400 Soenderborg SINGLE-SIDED CARDBOARD MACHINE
FR2622145B1 (en) * 1987-10-23 1994-05-27 Lacaux Freres Papeteries Carto ROD CYLINDER FOR A CORRUGATED BOARD MANUFACTURING MACHINE
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JP2796554B2 (en) * 1989-10-18 1998-09-10 株式会社コニカシステム機器 Sheet punching machine
DE69301776T2 (en) * 1992-06-19 1996-08-08 Peters W Maschf Single sided corrugated cardboard manufacturing machine

Also Published As

Publication number Publication date
US5553894A (en) 1996-09-10
DE69404578T2 (en) 1998-01-08
EP0641646A2 (en) 1995-03-08
DE69404578D1 (en) 1997-09-04
EP0641646A3 (en) 1995-11-29

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