EP0574874A1 - Device for controlling the distance between a cylinder which applies glue and a cylinder by which a band is fed on - Google Patents
Device for controlling the distance between a cylinder which applies glue and a cylinder by which a band is fed on Download PDFInfo
- Publication number
- EP0574874A1 EP0574874A1 EP93109521A EP93109521A EP0574874A1 EP 0574874 A1 EP0574874 A1 EP 0574874A1 EP 93109521 A EP93109521 A EP 93109521A EP 93109521 A EP93109521 A EP 93109521A EP 0574874 A1 EP0574874 A1 EP 0574874A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gluing unit
- cylinder
- frame
- gluing
- cam
- 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.)
- Granted
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
- B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
- B05C1/083—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets being passed between the coating roller and one or more backing rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/20—Corrugating; Corrugating combined with laminating to other layers
- B31F1/24—Making webs in which the channel of each corrugation is transverse to the web feed
- B31F1/26—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions
- B31F1/28—Making webs in which the channel of each corrugation is transverse to the web feed by interengaging toothed cylinders cylinder constructions combined with uniting the corrugated webs to flat webs ; Making double-faced corrugated cardboard
- B31F1/2818—Glue application specially adapted therefor
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- 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
- Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
- Y10T156/1798—Surface bonding means and/or assemblymeans with work feeding or handling means with liquid adhesive or adhesive activator applying means
Definitions
- the present invention relates to a device for adjusting the distance between an adhesive applicator cylinder and a tape passage cylinder, in particular a strip of paper or a strip of "single-sided" corrugated cardboard for a manufacturing machine. of corrugated cardboard.
- a first sheet of paper is corrugated by passing between two fluted rolls, an upper then a lower.
- a sizing cylinder situated 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 quality of the single-sided cardboard obtained greatly depends on the quality of the gluing operation during which a precise quantity of glue must be deposited along each crest of the paper.
- This precision of the quantity of glue transferred depends on the one hand on the regularity and on the accuracy of the thickness of the glue film present on the periphery of the gluing cylinder belonging to a gluing unit.
- the gluing cylinder passes, during its rotation, first through a glue tank, then next to a dosing cylinder whose position is such that it pushes back the excess glue for only let the film with the desired characteristics pass.
- a known device for adjusting the distance between the glue roller and the lower grooved cylinder then comprises two conical stops emerging orthogonally from the internal face of each side wall of the frame, each conical stop being more or less advanced or moved out of the wall.
- this device turns out to be imperfect due to the frequent presence of litter and other dirt on the rails, which involuntarily raises the unit and brings the glue roller too close to the lower grooved cylinder, or makes wear marks on these rails which, by causing an undesirable lowering of the unit, spreads the glue roller too far from the grooved cylinder.
- the ridges of corrugated paper are somewhat crushed and the glue is found on both sides of the ridges, while in the opposite situation, an insufficiency or even an absence of glue deposit is obtained.
- the object of the present invention is a device for adjusting the gap between an adhesive applicator roller and a tape passage cylinder which is more precise, in particular by first being practically insensitive to the presence of detritus or dust, while then allowing different fine adjustments between the right and left side of the roller, and also facilitating adjustment during operation.
- This device must also be of simplified maintenance, in particular because of its design and because of the arrangement of its main organs.
- the gluing unit is fully supported between the shaft and the lifting means and therefore becomes completely independent of the initial support conditions on the base of the frame.
- the final position of this unit is blocked both horizontally by the shaft and vertically by the position of the cam.
- the structure of the gluing unit comprises two rigid lateral plates held vertically and parallel by crosspieces allowing a certain torsional movement of this gluing unit along a theoretical axis parallel to the gluing cylinder. It is then possible to provide two separate adjustment devices: a right and a left, which then makes it possible to compensate for a slight initial traversing of the grooved cylinder by imposing a compensating traversing on the gluing roller.
- the shaft is materialized by two pivots mounted facing each other in the lower part of the side plates of the frame of the machine, each side plate of the gluing unit having, at its lower front end, a hook oriented towards the bottom of the gluing unit and engaged on the corresponding pivot.
- the downward-facing part of a hook has a V shape.
- the lifting means of the gluing unit then preferably comprise a pair of actuators arranged, in the frame of the machine, at the location of a lifting point situated substantially at the rear lower end of each side plate of this gluing unit.
- these lifting means support at least half the weight of the unit, which allows better control of their impact on the final position.
- the gluing unit comprises a pair of external stops situated in the lower middle part of each side plate, and the frame is provided in correspondence with cams comprising a cylinder mounted eccentrically on an axis passing through this frame, this axis being able to be actuated in rotation from outside the frame.
- the axis of the cam is connected to the outside of the frame at a first end of an arm, the other end of which is actuated by an actuator.
- This embodiment of the cam by means of a cylinder mounted eccentrically on an axis allows very fine adjustments, in particular if this axis can be turned very slightly thanks to the amplification of a lever.
- the pivots When this device is applied to a gluing unit mounted on rails by rollers, it is useful for the pivots to have a cross section in the form of circular segments, each pivot being able to be turned by an actuator to orient a flat portion upwards. of the gluing unit so as to release the hooks for a translation of this unit along the rails outside the station.
- a single-sided station 1 is illustrated in which a first sheet of paper 5 arriving from above is corrugated by passing between an upper fluted cylinder 10 and a lower fluted cylinder 12, in the lower part of which it receives a layer of glue on its ridges, the glue being delivered by a glue roller 26 before a facing paper 7 is applied to it by a lower pressure cylinder 14.
- These cylinders are mounted inside a frame 3 comprising two right and left side walls 4.
- the gluing unit 20 comprises an adhesive reservoir 21 in which the glue roller 26 dips.
- a metering roller 28 is positioned close to this glue roller 26 with a predetermined distance that can be adjusted at any time. Thus, when this glue roller rotates anti-clockwise, it takes glue from the reservoir 21, the excess of which is discharged by the metering roller 28 so that only appears on its upper periphery a homogeneous glue film of constant thickness.
- the structure of the gluing unit 20 comprises two rigid lateral plates 22 held vertically and parallel to one another by three horizontal crosspieces 24.
- the lateral plates 22 are each mounted on front 32 and rear 34 casters so as to can be moved on rails 8 whose rear ends are carried by a movable door 6 and the front ends are provided to slide on the base of the frame 3.
- each pivot has in cross section the shape of a circular segment, in other words, a circular section in which a flat has subsequently been made.
- the height of this circular segment is between half and three-quarters of the initial diameter.
- These pivots 40 are each connected in their extension to a rotary actuator 41 allowing, when necessary, to orient the flat portion downwards or upwards.
- the front end of each side plate 22 has a reinforced hook 30.
- the underside 31 of these hooks provided to snap over the pivots 40 preferably has a V-shaped downward orientation to minimize the effects of wear.
- the adjustment device then comprises two cams 42 also arranged in the lower part but substantially in the middle of each internal face of the side walls 4 of the frame 3.
- a cam 42 is in fact produced in the form of a cylinder emerging perpendicularly from the side wall 4 and mounted eccentrically on an axis passing through this wall 4.
- the outer end of this cylinder is connected to the one end of a lever arm 43 of which the other end is connected by a return rod 44 to an actuator 45.
- each rigid side plate 22 of the sizing machine 20 has, in its lower central part, a projecting stop 35.
- the adjustment device finally comprises a pair of hydraulic cylinders 47 with vertical action housed in the base of the frame 3, each close to a side wall 4 of the frame 3 and towards the rear close to the movable door 6, in fact in a position corresponding to that of a pair of lifting points 36 belonging to the rear lower part of each side plate 22 of the gluing unit 20 when the latter is in the working position.
- This adjustment device described above operates in the following manner.
- the flat part of the pivot 40 is initially oriented upwards in order to allow the gluing station 20 to be inserted inside the frame 3 until the hook 30 passes over this pivot 40. It is actuated then the rotary actuator 41 for orienting the flat part of this pivot 40 downwards, which engages the circular part in the hook 30 and thus prevents any subsequent movement of the sizing machine 20 in translation along the rails 8.
- the cams 42 being previously put in the desired position, the pair of jacks 47 are then actuated which each raise the side plate 22 in correspondence until the stops 35 come to bear against the cams 42.
- the gluing unit 20 is now blocked against any movement back and forth by hooking on the pivots 40 and against any vertical movement by the action of the jacks 47, therefore of the stops 35 against the cams 42.
- the rigidity in the vertical plane of the side plates 22 is used to pass on fine adjustments made at the bottom of the unit up to the glue roller 26.
- the splitting organs at each side plate 22 allows, to some extent, to adjust them separately allowing, if necessary, to adjust a side slightly higher than the other to compensate for a cross of the lower grooved cylinder 12 and this thanks to the slight flexibility in torsion of the crosspieces 24.
- actuators 41 and 45 may have been arranged on the external faces of the side walls 4 of the frame 3, so that they are not not subject to the temperature constraints prevailing in this station during its operation, and above all allowing easy access to it in particular if one wishes to modify one of the settings.
- this device for adjusting the gap between a glue roller and a tape passage roller by lifting the whole unit can also be applied with some modifications in the gluing station located upstream from the so-called "double-sided” station in which several corrugated papers are assembled with a facing sheet to make a double or triple-sided corrugated board. Many improvements can be made to this device in the context of the invention.
Abstract
Description
La présente invention est relative à un dispositif de réglage de l'écart entre un cylindre applicateur de colle et un cylindre de passage d'une bande, notamment une bande de papier ou une bande de carton ondulé "simple face" pour une machine de fabrication de carton ondulé.The present invention relates to a device for adjusting the distance between an adhesive applicator cylinder and a tape passage cylinder, in particular a strip of paper or a strip of "single-sided" corrugated cardboard for a manufacturing machine. of corrugated cardboard.
Dans la station dite "simple face" située en amont d'une machine de fabrication de carton, une première feuille de papier est ondulée par passage entre deux cylindres cannelés, un supérieur puis 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 the so-called "single-sided" station located upstream of a cardboard manufacturing machine, a first sheet of paper is corrugated by passing between two fluted rolls, an upper then a lower. A sizing cylinder situated 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.
La qualité du carton simple face obtenue dépend grandement de la qualité de l'opération d'encollage pendant laquelle une quantité précise de colle doit être déposée tout le long de chaque crête du papier. Cette précision de la quantité de colle transférée dépend d'une part de la régularité et de l'exactitude de l'épaisseur du film de colle présent sur la périphérie du cylindre encolleur appartenant à une unité d'encollage. Ainsi, dans cette unité d'encollage, le cylindre encolleur passe, lors de sa rotation, d'abord par un réservoir de colle, puis en regard d'un cylindre doseur dont la position est telle qu'il refoule le surplus de colle pour ne laisser passer que le film de caractéristiques voulues.The quality of the single-sided cardboard obtained greatly depends on the quality of the gluing operation during which a precise quantity of glue must be deposited along each crest of the paper. This precision of the quantity of glue transferred depends on the one hand on the regularity and on the accuracy of the thickness of the glue film present on the periphery of the gluing cylinder belonging to a gluing unit. Thus, in this gluing unit, the gluing cylinder passes, during its rotation, first through a glue tank, then next to a dosing cylinder whose position is such that it pushes back the excess glue for only let the film with the desired characteristics pass.
Cette précision de la quantité de colle transférée dépend, bien évidemment, du réglage exact de l'écart entre ce rouleau applicateur et le cylindre inférieur cannelé, ce qui se traduit par la nécessité d'un réglage rigoureux de la position de l'unité d'encollage par rapport au bâti de la station "simple face" supportant les cylindres cannelés.This precision of the quantity of adhesive transferred depends, of course, on the exact adjustment of the gap between this applicator roller and the grooved lower cylinder, which results in the need for a rigorous adjustment of the position of the unit d sizing with respect to the frame of the "single-sided" station supporting the grooved cylinders.
Afin de pouvoir régulièrement nettoyer l'unité d'encollage et les cylindres cannelés, il est courant d'équiper cette unité d'encollage de roulettes se déplaçant sur des rails afin de pouvoir l'extraire facilement par l'arrière de la station.In order to be able to regularly clean the gluing unit and the grooved cylinders, it is common to equip this gluing unit with rollers moving on rails so that it can be easily removed from the rear of the station.
Un dispositif connu de réglage de l'écart entre le rouleau encolleur et le cylindre cannelé inférieur comprend alors deux butées coniques émergeant orthogonalement de la face interne de chaque paroi latérale du bâti, chaque butée conique pouvant être plus ou moins avancée ou reculée hors de la paroi. Ainsi, lorsque l'on pousse l'unité d'encollage dans la station jusqu'à ce qu'elle prenne appui sur les deux butées, sa position finale dépend de l'avance préréglée de ces butées, un retrait complet de ces butées donnant la position maximum en avant pour l'unité, donc l'écart minimum possible entre le rouleau encolleur et le cylindre cannelé. Toutefois, à l'usage, ce dispositif s'avère imparfait du fait de la présence fréquente de détritus et autres saletés sur les rails, ce qui réhausse de manière involontaire l'unité et rapproche trop le rouleau encolleur du cylindre cannelé inférieur, ou du fait du marquage par l'usure de ces rails ce qui, en provoquant un abaissement indésirable de l'unité, écarte trop le rouleau encolleur du cylindre cannelé. Dans le premier cas, les crêtes de papier ondulé sont quelque peu écrasées et la colle se retrouve de part et d'autre des crêtes, alors que dans la situation inverse, on obtient une insuffisance, voire une absence de dépôt de colle.A known device for adjusting the distance between the glue roller and the lower grooved cylinder then comprises two conical stops emerging orthogonally from the internal face of each side wall of the frame, each conical stop being more or less advanced or moved out of the wall. Thus, when the gluing unit is pushed into the station until it rests on the two stops, its final position depends on the preset advance of these stops, complete withdrawal of these stops giving the maximum forward position for the unit, therefore the minimum possible distance between the glue roller and the grooved cylinder. However, in use, this device turns out to be imperfect due to the frequent presence of litter and other dirt on the rails, which involuntarily raises the unit and brings the glue roller too close to the lower grooved cylinder, or makes wear marks on these rails which, by causing an undesirable lowering of the unit, spreads the glue roller too far from the grooved cylinder. In the first case, the ridges of corrugated paper are somewhat crushed and the glue is found on both sides of the ridges, while in the opposite situation, an insufficiency or even an absence of glue deposit is obtained.
Le but de la présente invention est un dispositif de réglage de l'écart entre un rouleau applicateur de colle et un cylindre de passage de bande qui soit plus précis, notamment en étant d'abord pratiquement insensible à la présence de détritus ou de poussières, tout en permettant ensuite des réglages fins différents entre le côté droit et gauche du rouleau, et en facilitant également l'ajustement en cours d'opération. Ce dispositif doit de plus être d'une maintenance simplifiée notamment de part sa conception et de part la disposition de ses organes principaux.The object of the present invention is a device for adjusting the gap between an adhesive applicator roller and a tape passage cylinder which is more precise, in particular by first being practically insensitive to the presence of detritus or dust, while then allowing different fine adjustments between the right and left side of the roller, and also facilitating adjustment during operation. This device must also be of simplified maintenance, in particular because of its design and because of the arrangement of its main organs.
Ces buts sont réalisés du fait qu'il comprend un arbre, disposé transversalement dans le bâti, sur lequel est accrochée l'unité d'encollage, ledit arbre étant placé parallèlement au cylindre applicateur; des moyens pour lever l'unité d'encollage, en rotation autour de l'arbre, de façon à provoquer un rapprochement du cylindre applicateur vers le cylindre de passage de la bande, et au moins une came, montée dans le bâti, contre laquelle vient prendre appui une butée de l'unité d'encollage, l'orientation ajustable de cette came marquant la limite de l'élévation de cette unité d'encollage, la butée et la came pouvant indifféremment être montées soit dans le bâti soit dans l'unité d'encollage.These goals are achieved by the fact that it comprises a shaft, arranged transversely in the frame, on which the gluing unit is hung, said shaft being placed parallel to the applicator cylinder; means for lifting the gluing unit, in rotation around the shaft, so as to bring the applicator cylinder closer to the strip passage cylinder, and at least one cam, mounted in the frame, against which comes to bear a stop of the gluing unit, the adjustable orientation of this cam marking the limit of the elevation of this gluing unit, the stop and the cam being able either to be mounted either in the frame or in the 'gluing unit.
Ainsi, l'unité d'encollage est entièrement prise en charge entre l'arbre et les moyens de levage et devient donc totalement indépendante des conditions initiales de support sur le socle du bâti. De plus, la position finale de cette unité est bloquée aussi bien horizontalement par l'arbre, que verticalement par la position de la came. De plus, il est toujours possible de modifier aisément en cours d'opération l'orientation de la came et l'action des moyens de levage pour réajuster la position de cette unité d'encollage, donc la position finale du rouleau applicateur.Thus, the gluing unit is fully supported between the shaft and the lifting means and therefore becomes completely independent of the initial support conditions on the base of the frame. In addition, the final position of this unit is blocked both horizontally by the shaft and vertically by the position of the cam. In addition, it is always possible to easily modify during operation the orientation of the cam and the action of the lifting means to readjust the position of this gluing unit, therefore the final position of the applicator roller.
Avantageusement, la structure de l'unité d'encollage comprend deux plaques latérales rigides tenues verticalement et parallèlement par des traverses autorisant un certain mouvement de torsion de cette unité d'encollage le long d'un axe théorique parallèle au cylindre encolleur. On peut alors prévoir deux dispositifs de réglage distincts : un droit et un gauche, ce qui permet alors de compenser un léger travers initial du cylindre cannelé en imposant un travers de compensation au rouleau d'encollage.Advantageously, the structure of the gluing unit comprises two rigid lateral plates held vertically and parallel by crosspieces allowing a certain torsional movement of this gluing unit along a theoretical axis parallel to the gluing cylinder. It is then possible to provide two separate adjustment devices: a right and a left, which then makes it possible to compensate for a slight initial traversing of the grooved cylinder by imposing a compensating traversing on the gluing roller.
De préférence alors, l'arbre est matérialisé par deux pivots montés en vis-à-vis dans la partie inférieure des plaques latérales du bâti de la machine, chaque plaque latérale de l'unité d'encollage présentant, à son extrémité inférieure avant, un crochet orienté vers le bas de l'unité d'encollage et engagé sur le pivot correspondant. Utilement, la partie orientée vers le bas d'un crochet a une forme en V.Preferably then, the shaft is materialized by two pivots mounted facing each other in the lower part of the side plates of the frame of the machine, each side plate of the gluing unit having, at its lower front end, a hook oriented towards the bottom of the gluing unit and engaged on the corresponding pivot. Usefully, the downward-facing part of a hook has a V shape.
Les moyens de levage de l'unité d'encollage comprennent alors, de préférence, une paire d'actuateurs disposés, dans le bâti de la machine, à l'emplacement d'un point de levage situé sensiblement à l'extrémité inférieure arrière de chaque plaque latérale de cette unité d'encollage. Par cet agencement, ces moyens de levage supportent au moins la moitié du poids de l'unité, ce qui permet de mieux contrôler leur incidence sur la position finale.The lifting means of the gluing unit then preferably comprise a pair of actuators arranged, in the frame of the machine, at the location of a lifting point situated substantially at the rear lower end of each side plate of this gluing unit. By this arrangement, these lifting means support at least half the weight of the unit, which allows better control of their impact on the final position.
Avantageusement, l'unité d'encollage comprend une paire de butées extérieures situées dans la partie médiane inférieure de chaque plaque latérale, et le bâti est muni en correspondance de cames comprenant un cylindre monté excentré sur un axe traversant ce bâti, cet axe pouvant être actionné en rotation depuis l'extérieur du bâti. Utilement, l'axe de la came est relié à l'extérieur du bâti à une première extrémité d'un bras dont l'autre extrémité est actionnée par un actuateur. Cette forme de réalisation de la came au moyen d'un cylindre monté excentré sur un axe permet des réglages très fins, notamment si cet axe peut être tourné très faiblement grâce à l'amplification d'un levier.Advantageously, the gluing unit comprises a pair of external stops situated in the lower middle part of each side plate, and the frame is provided in correspondence with cams comprising a cylinder mounted eccentrically on an axis passing through this frame, this axis being able to be actuated in rotation from outside the frame. Usefully, the axis of the cam is connected to the outside of the frame at a first end of an arm, the other end of which is actuated by an actuator. This embodiment of the cam by means of a cylinder mounted eccentrically on an axis allows very fine adjustments, in particular if this axis can be turned very slightly thanks to the amplification of a lever.
Lorsque ce dispositif est appliqué à une unité d'encollage montée sur rails par des roulettes, il est utile que les pivots présentent une section transversale en forme de segments circulaires, chaque pivot pouvant être tourné par un actuateur pour orienter une portion plane vers le haut de l'unité d'encollage de telle sorte à libérer les crochets pour une translation de cette unité le long des rails hors de la station.When this device is applied to a gluing unit mounted on rails by rollers, it is useful for the pivots to have a cross section in the form of circular segments, each pivot being able to be turned by an actuator to orient a flat portion upwards. of the gluing unit so as to release the hooks for a translation of this unit along the rails outside the station.
L'invention sera mieux comprise à l'étude d'un mode de réalisation pris à titre d'exemple nullement limitatif et décrit par les figues suivantes :
- la figure 1 est une vue schématique de côté d'une station simple face avec son unité d'encollage en position hors service, et
- la figure 2 est une vue schématique en coupe partielle longitudinale de la station simple face de la figure 1 avec son unité d'encollage en position de fonctionnement.
- FIG. 1 is a schematic side view of a single-sided station with its gluing unit in the out-of-service position, and
- Figure 2 is a schematic view in partial longitudinal section of the single-sided station of Figure 1 with its gluing unit in the operating position.
Sur les figures 1 et 2, est illustrée une station simple face 1 dans laquelle une première feuille de papier 5 arrivant par le haut est ondulée par passage entre un cylindre cannelé supérieur 10 et un cylindre cannelé inférieur 12, en la partie inférieure duquel elle reçoit une couche de colle sur ses crêtes, la colle étant délivrée par un rouleau encolleur 26 avant qu'un papier de parement 7 ne lui soit appliquée par un cylindre presseur inférieur 14. Ces cylindres sont montés à l'intérieur d'un bâti 3 comportant deux parois latérales droite et gauche 4.In FIGS. 1 and 2, a single-sided station 1 is illustrated in which a first sheet of
L'unité d'encollage 20 comprend un réservoir de colle 21 dans lequel barbote le rouleau encolleur 26. Un rouleau doseur 28 est positionné proche de ce rouleau encolleur 26 avec un écart prédéterminé ajustable à tout moment. Ainsi, lorsque ce rouleau encolleur tourne dans le sens inverse des aiguilles d'une montre, il prélève de la colle du réservoir 21 dont l'excédent est refoulé par le rouleau doseur 28 de telle sorte que n'apparaisse sur sa périphérie supérieure qu'un film de colle homogène et d'épaisseur constante.The
Dans ce mode de réalisation, la structure de l'unité d'encollage 20 comprend deux plaques latérales rigides 22 maintenues verticalement et parallèlement entre elles par trois traverses horizontales 24. Les plaques latérales 22 sont chacune montées sur des roulettes avant 32 et arrière 34 afin de pouvoir être déplacées sur des rails 8 dont les extrémités arrière sont portées par une porte mobile 6 et les extrémités avant sont prévues pour coulisser sur la base du bâti 3. Comme illustré sur la figure 1, il est donc possible à tout moment de sortir la porte mobile 6 hors du bâti 3, puis de faire rouler cette unité d'encollage 20 en arrière pour réparation, nettoyage et maintenance, et également atteindre par l'arrière les cylindres 10, 12 et 14 pour des opérations similaires.In this embodiment, the structure of the
Selon l'invention, deux pivots de référence 40 sont montés en vis-à-vis chacun dans la partie inférieure avant de la face interne de la paroi latérale 4, pratiquement à la verticale du cylindre cannelé 12. Comme on peut mieux l'observer sur la figure 2, chaque pivot présente en coupe transversale une forme de segment circulaire, en d'autres termes, une section circulaire dans laquelle on a ménagé par la suite un plat. La hauteur de ce segment circulaire est comprise entre la moitié et les trois-quarts du diamètre initial. Ces pivots 40 sont chacun reliés dans leur prolongement à un actuateur rotatif 41 permettant, lorsque nécessaire, d'orienter la portion plane vers le bas ou vers le haut. En correspondance, l'extrémité frontale de chaque plaque latérale 22 présente un crochet 30 renforcé. La face inférieure 31 de ces crochets prévus pour venir s'enclencher par-dessus les pivots 40 a de préférence une forme en V orientée vers le bas pour minimiser les effets de l'usure.According to the invention, two
Le dispositif de réglage selon l'invention comprend ensuite deux cames 42 disposées également dans la partie inférieure mais sensiblement au milieu de chaque face interne des parois latérales 4 du bâti 3. Comme on peut mieux l'observer sur la figure 2, une came 42 est en fait réalisée sous la forme d'un cylindre émergeant perpendiculairement de la paroi latérale 4 et monté de manière excentrée sur un axe traversant cette paroi 4. Comme illustré sur la figure 1, l'extrémité extérieure de ce cylindre est reliée à l'une des extrémités d'un bras de levier 43 dont l'autre extrémité est reliée par une tige de renvoi 44 à un actuateur 45. Ainsi, en montant ou descendant le bras de levier 43, on peut appliquer une orientation angulaire très précise à la came 42. Par ailleurs, chaque plaque latérale rigide 22 de l'encolleuse 20 présente, en sa partie médiane inférieure, une butée 35 saillante.The adjustment device according to the invention then comprises two
Le dispositif de réglage selon l'invention comprend enfin une paire de vérins hydrauliques 47 à action verticale logée dans la base du bâti 3, chacun proche d'une paroi latérale 4 du bâti 3 et vers l'arrière proche de la porte mobile 6, en fait en une position correspondante à celle d'une paire de points de levage 36 appartenant à la partie inférieure arrière de chaque plaque latérale 22 de l'unité d'encollage 20 lorsque celle-ci est en position de travail.The adjustment device according to the invention finally comprises a pair of
Ce dispositif de réglage décrit précédemment fonctionne de la manière suivante. La partie plane du pivot 40 est initialement orientée vers le haut afin de permettre d'insérer la station d'encollage 20 à l'intérieur du bâti 3 jusqu'à ce que le crochet 30 passe au-dessus de ce pivot 40. On actionne alors l'actuateur rotatif 41 pour orienter la partie plane de ce pivot 40 vers le bas, ce qui enclenche la partie circulaire dans le crochet 30 et empêche ainsi tout mouvement ultérieur de l'encolleuse 20 en translation le long des rails 8. Les cames 42 étant préalablement mises en position voulue, on actionne alors la paire de vérins 47 qui soulèvent chacun la plaque latérale 22 en correspondance jusqu'à ce que les butées 35 viennent prendre appui contre les cames 42. On est ainsi passé d'une première position 50, dans laquelle les roulettes arrière 33 reposent sur les rails et où le rouleau encolleur 26 est dégagé, à une seconde position de travail 52 dans laquelle les roulettes 32 et 33 sont sorties des rails 8 et dans laquelle le rouleau encolleur 26 se retrouve maintenant proche du cylindre cannelé inférieur 12 avec un écart très précis.This adjustment device described above operates in the following manner. The flat part of the
Comme on peut le constater, l'unité d'encollage 20 est maintenant bloquée contre tout mouvement d'avant en arrière par accrochage sur les pivots 40 et contre tout mouvement vertical par l'action des vérins 47, donc des butées 35 contre les cames 42. En d'autres termes, on utilise la rigidité dans le plan vertical des plaques latérales 22 pour répercuter des réglages fins effectués au bas de l'unité jusqu'au rouleau encolleur 26. De plus, dans ce mode de réalisation, le dédoublement des organes au niveau de chaque plaque latérale 22 permet, dans une certaine mesure, de les régler séparément permettant, si nécessaire, de régler un côté légèrement plus haut que l'autre pour compenser un travers du cylindre cannelé inférieur 12 et ce grâce à la légère flexibilité en torsion des traverses 24. Il est par ailleurs à noter que les actuateurs 41 et 45 ont pu être disposés sur les faces externes des parois latérales 4 du bâti 3, de telle sorte qu'ils ne soient pas soumis aux contraintes de température régnant dans cette station lors de son opération, et surtout permettant d'y avoir un accès aisé notamment si l'on souhaite modifier l'un des réglages.As can be seen, the
Bien qu'illustré ici dans une utilisation à l'intérieur d'une station simple face, ce dispositif de réglage de l'écart entre un rouleau encolleur et un rouleau de passage d'une bande par levée de l'ensemble de l'unité d'encollage peut également s'appliquer avec quelques modifications dans la station d'encollage située en amont de la station dite "double face" dans laquelle plusieurs papiers ondulés sont assemblés avec une feuille de parement pour réaliser un carton ondulé double ou triple face. De nombreuses améliorations peuvent être apportées à ce dispositif dans le cadre de l'invention.Although illustrated here in a use inside a single-sided station, this device for adjusting the gap between a glue roller and a tape passage roller by lifting the whole unit can also be applied with some modifications in the gluing station located upstream from the so-called "double-sided" station in which several corrugated papers are assembled with a facing sheet to make a double or triple-sided corrugated board. Many improvements can be made to this device in the context of the invention.
Claims (8)
un arbre, disposé transversalement dans le bâti (3), sur lequel est accrochée l'unité d'encollage (20), ledit arbre étant placé parallèlement au cylindre applicateur (26); des moyens (47,36) pour lever l'unité d'encollage, en rotation autour de l'arbre (40), de façon à provoquer un rapprochement du cylindre applicateur (26) vers le cylindre de passage (12) de la bande; et au moins une came (42), montée dans le bâti (3), contre laquelle vient prendre appui une butée (35) de l'unité d'encollage (20), l'orientation ajustable de cette came marquant la limite de l'élévation de cette unité d'encollage (20), la butée (35) et la came (42) pouvant indifféremment être montées soit dans le bâti (3) soit dans l'unité d'encollage (20).Device for adjusting the gap between an adhesive applicator cylinder (26) and a passage cylinder (12) for a strip, in particular a strip of paper (5) or a strip of "single-sided" corrugated cardboard, for a machine for manufacturing corrugated cardboard, this device being installed in a frame (3) of the machine, the strip of paper or corrugated cardboard "single face" (5) passing partially around the passage cylinder (12), while being glued by the glue applicator cylinder (26), this roller belonging to a gluing unit (20) delivering a film of glue that is substantially uniform on this applicator roller (26), characterized in that it comprises:
a shaft, arranged transversely in the frame (3), on which the gluing unit (20) is hung, said shaft being placed parallel to the applicator cylinder (26); means (47, 36) for lifting the gluing unit, in rotation around the shaft (40), so as to bring the applicator cylinder (26) closer to the passage cylinder (12) of the strip ; and at least one cam (42), mounted in the frame (3), against which abuts a stop (35) of the gluing unit (20), the adjustable orientation of this cam marking the limit of l elevation of this gluing unit (20), the stop (35) and the cam (42) can be mounted either in the frame (3) or in the gluing unit (20).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1935/92 | 1992-06-19 | ||
CH01935/92A CH688084A5 (en) | 1992-06-19 | 1992-06-19 | the adjusting device gap between a glue applicator cylinder and a portion of a web cylinder. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0574874A1 true EP0574874A1 (en) | 1993-12-22 |
EP0574874B1 EP0574874B1 (en) | 1996-03-06 |
Family
ID=4222049
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93109521A Expired - Lifetime EP0574874B1 (en) | 1992-06-19 | 1993-06-15 | Device for controlling the distance between a cylinder which applies glue and a cylinder by which a band is fed on |
Country Status (5)
Country | Link |
---|---|
US (1) | US5348612A (en) |
EP (1) | EP0574874B1 (en) |
JP (1) | JPH0818387B2 (en) |
CH (1) | CH688084A5 (en) |
DE (1) | DE69301687T2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0786329A3 (en) * | 1996-01-23 | 1997-08-13 | Mitsubishi Jukogyo Kabushiki Kaisha | Method and apparatus for single facer glue application adjustment |
EP0870598A1 (en) * | 1997-04-11 | 1998-10-14 | PETERS MASCHINENFABRIK GmbH | Device for the manufacture of a laminated material strip |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4241743A1 (en) * | 1992-12-11 | 1994-06-16 | Bhs Bayerische Berg | Gluing device for a corrugated cardboard plant |
US6623416B2 (en) | 1999-06-18 | 2003-09-23 | Marquip, Llc | Single facer with resilient small diameter corrugating roll |
EP1086805B1 (en) * | 1999-09-22 | 2004-11-10 | BHS CORRUGATED MASCHINEN- UND ANLAGENBAU GmbH | Machine for producing corrugated board and method of calibrating the glue applicator gap in such a machine |
DE10052372A1 (en) * | 2000-10-20 | 2002-05-02 | Bhs Corr Masch & Anlagenbau | Method for regulating the height of a nip of a gluing device for a corrugated cardboard web and device for carrying out the method |
US6710566B2 (en) | 2001-10-01 | 2004-03-23 | Chicago Industrial Group, Inc. | Method and apparatus for servo glue gap control |
US6601282B1 (en) | 2002-01-15 | 2003-08-05 | Marquip, Llc | Method and apparatus for positioning and locking a glue roll for a single facer in operative position |
DE102013216828A1 (en) * | 2013-08-23 | 2015-02-26 | Bhs Corrugated Maschinen- Und Anlagenbau Gmbh | Apparatus for producing a corrugated cardboard web laminated at least on one side |
IT201700011824A1 (en) * | 2017-02-03 | 2018-08-03 | Futura Spa | Embossing system. |
CN112009034A (en) * | 2020-08-14 | 2020-12-01 | 龙利得智能科技股份有限公司 | Uniform gluing equipment for corrugated packaging paper processing and gluing process thereof |
CN112721464A (en) * | 2020-12-29 | 2021-04-30 | 济南联合制罐有限公司 | Cover light structure of pop-top can color printing machine |
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US2589966A (en) * | 1948-01-15 | 1952-03-18 | S & S Corrugated Paper Mach | Adhesive applicator for corrugating machines |
DE2345183C2 (en) * | 1973-09-07 | 1975-03-20 | Roland Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach | Device for painting or the like. on a printing press |
US4059474A (en) * | 1976-05-10 | 1977-11-22 | Molins Machine Company Inc. | Glue mechanism |
JPS60104325A (en) * | 1983-11-10 | 1985-06-08 | 三菱重工業株式会社 | Single facer |
DE3631802A1 (en) * | 1986-09-18 | 1988-03-31 | Bhs Bayerische Berg | SINGLE-SIDED CARDBOARD MACHINE |
-
1992
- 1992-06-19 CH CH01935/92A patent/CH688084A5/en not_active IP Right Cessation
-
1993
- 1993-06-11 JP JP5140371A patent/JPH0818387B2/en not_active Expired - Lifetime
- 1993-06-15 DE DE69301687T patent/DE69301687T2/en not_active Expired - Fee Related
- 1993-06-15 EP EP93109521A patent/EP0574874B1/en not_active Expired - Lifetime
- 1993-06-18 US US08/078,043 patent/US5348612A/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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EP0024029A1 (en) * | 1979-08-10 | 1981-02-18 | Hoesch Aktiengesellschaft | Apparatus for coating striplike material, particularly strip metal |
US4267008A (en) * | 1979-09-24 | 1981-05-12 | Eastern Container Corporation | Corrugating machine |
FR2487733A1 (en) * | 1980-08-01 | 1982-02-05 | Rengo Co Ltd | SINGLE SIDED CORRUGATED BOARD MACHINE FOR FAST REPLACEMENT OF CYLINDERS |
EP0092079A1 (en) * | 1982-04-16 | 1983-10-26 | AGNATI S.p.A. | Corrugating unit for manufacturing corrugated board |
EP0179395A1 (en) * | 1984-10-26 | 1986-04-30 | PETERS MASCHINENFABRIK GmbH | Coating device for a corrugated cardboard installation |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0786329A3 (en) * | 1996-01-23 | 1997-08-13 | Mitsubishi Jukogyo Kabushiki Kaisha | Method and apparatus for single facer glue application adjustment |
US5876530A (en) * | 1996-01-23 | 1999-03-02 | Mitsubishi Jukogyo Kabushiki Kaisha | Method and apparatus for single facer glue application adjustment |
EP0870598A1 (en) * | 1997-04-11 | 1998-10-14 | PETERS MASCHINENFABRIK GmbH | Device for the manufacture of a laminated material strip |
US6409857B2 (en) | 1997-04-11 | 2002-06-25 | Peters Machinenfabrik Gmbh | Device for manufacturing a composite sheet |
Also Published As
Publication number | Publication date |
---|---|
DE69301687T2 (en) | 1996-07-25 |
JPH06340011A (en) | 1994-12-13 |
EP0574874B1 (en) | 1996-03-06 |
US5348612A (en) | 1994-09-20 |
JPH0818387B2 (en) | 1996-02-28 |
CH688084A5 (en) | 1997-05-15 |
DE69301687D1 (en) | 1996-04-11 |
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