EP1136404A2 - Device for longitudinally aligning plate-like elements in a feeding station of a machine for treating them - Google Patents
Device for longitudinally aligning plate-like elements in a feeding station of a machine for treating them Download PDFInfo
- Publication number
- EP1136404A2 EP1136404A2 EP01103808A EP01103808A EP1136404A2 EP 1136404 A2 EP1136404 A2 EP 1136404A2 EP 01103808 A EP01103808 A EP 01103808A EP 01103808 A EP01103808 A EP 01103808A EP 1136404 A2 EP1136404 A2 EP 1136404A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- flaps
- shaft
- bearings
- plate elements
- machine
- 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
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H9/00—Registering, e.g. orientating, articles; Devices therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H9/00—Registering, e.g. orientating, articles; Devices therefor
- B65H9/06—Movable stops or gauges, e.g. rising and falling front stops
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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
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/02—Feeding or positioning sheets, blanks or webs
- B31B50/04—Feeding sheets or blanks
- B31B50/044—Feeding sheets or blanks involving aligning
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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
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/02—Feeding or positioning sheets, blanks or webs
- B31B50/10—Feeding or positioning webs
- B31B50/104—Feeding or positioning webs involving aligning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2402/00—Constructional details of the handling apparatus
- B65H2402/30—Supports; Subassemblies; Mountings thereof
- B65H2402/31—Pivoting support means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2402/00—Constructional details of the handling apparatus
- B65H2402/60—Coupling, adapter or locking means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2403/00—Power transmission; Driving means
- B65H2403/50—Driving mechanisms
- B65H2403/51—Cam mechanisms
- B65H2403/512—Cam mechanisms involving radial plate cam
Definitions
- the present invention relates to a device for alignment longitudinal of plate elements in a feed station machine working them for packaging production.
- the elements in plate, or sheets of paper or cardboard are successively taken from the top of a pile and brought flat towards a linking work stations such as printing stations, cutting and ejection of waste, before being re-stacked in a reception.
- the sheets are stored on a battery tray provided with automatic vertical movement with chains, so that the upper level of the stack remains constant during the introduction of the sheets into the production machine.
- the leaves are taken, one by one from the top of the stack, by lifting suction cups which will carry them towards suction cups conveyors. With a horizontal back-and-forth movement, the suction cups bring each sheet towards a table margin where the plate elements are thus deposited in a sheet.
- One way to transport each sheet from the entrance from the margin table to the first processing station is to use jointly a training mat, consisting of belts, and pebbles pressers that keep the sheet on the carpet and bring it to the in front of the first work station. Each sheet is then taken away in the stations which follow by a clamp bar mounted on a train of chains.
- a device which allows the longitudinal alignment of the sheets is usually formed of a transverse shaft connecting, from one end to the other, the width from the margin table. This tree is placed slightly below the level top of the sheet held by the suction cups.
- a blade extending along the transverse shaft and integral with it, acts as a stop for the front edge of the sheet and thus allows its alignment.
- the shaft is driven by a repetitive movement in rotation from 0 to 45 degrees, so that the blade constitutes a shutter placed alternately in a closed vertical position, and in an open oblique position which allows in the latter case the passage of the sheet in the margin table.
- the curl is particularly noticeable for sheets of corrugated cardboard and, is all the more marked that the thickness of the sheet is great or that the quality of the materials constituting the two sides of the sheet differs; which is often the case for aesthetic packaging boxes with prints.
- the phenomenon of curling is not necessarily generalized by a deformation symmetrical about one of the two axes of symmetry of the sheet. It may be in fact that the sheet is affected by a more pronounced curvature in its left half than in its right half or vice versa.
- Machine use of heavily tiled sheets poses different problems especially when introducing the sheet into the table margin, but also when aligning the front edge of the sheet just before its introduction. Being generally gripped by suction cups in its central part, the engagement of a heavily tiled sheet in the table margin causes discomfort at the lateral parts of the leaf which will tend to hook against the front edge of the margin table. Indeed, seen the concave curvature of the leaf, the edge of the lateral parts of these leaves is well below the introductory level which corresponds to the part leaf center, held by suction cups.
- the shape of the side shelves, favoring the introduction of the leaf varies mainly according to the maximum clearance that can offer, in its lateral parts, the device for the longitudinal alignment of the leaf.
- This clearance is inversely proportional to the space occupied by the side parts of the flap when it is adapted to the configuration necessary to allow the passage of sheets of a certain curl.
- the greater the contact length of the front edge the sheet against the shutter the better the alignment of the sheet and all the more the smaller the lateral clearance.
- the object of the present invention proposes, for the longitudinal alignment of sheets, a universal joint device whose the shaft of the articulated stop flap can acquire a shape which adapts to the curvature of the front edge of the tiled sheet.
- the device of this invention conforms to claim 1.
- the advantages resulting from the present invention are mainly recorded in the fact that such a device allows on the one hand align the sheet on almost all of its front edge to a range of leaves affected by significant curling (up to 4 to 5%), symmetrical or asymmetrical.
- the device according to the invention to the advantage of being able to remain permanently in the introduction station thanks to its particular ability allowing it to easily modify its geometry to adapt to the curved shapes of the tiled leaves.
- none part must not be added or removed from the flap of said device, and no tools auxiliary is only necessary for its adjustment, which saves time sensitive during the preparation of the machine in the case of a new job.
- the risk of losing certain parts of the shutter has the advantage of being totally excluded in this new concept.
- Figure 1 is a perspective view of the device of the invention seen from the driver side of the machine downstream, in accordance in the direction of movement of the plate elements.
- Figure 2 is a perspective view of the mechanism illustrating the kinematic chain of the device of the invention seen from the same angle.
- Figure 3 is a top view of the device of the invention.
- Figures 4 and 5 are side views from the side conductor, of the mechanism of FIG. 2 respectively when the shutter of stopper is closed, and when open.
- Figure 1 provides a general view of the device 1 for the longitudinal alignment of elements in plate 2, moving in the direction indicated by arrow 3 currently located on the longitudinal axis of the machine.
- the plate element 2, illustrated in phantom, is only partially represented by its downstream part and has an asymmetrical curl whose curvature is visible from the driver's side.
- Device 1 includes two shelves 5 and 6 folded down at an optimal angle and along an oblique line 7, so to constitute, for the most heavily tiled plate elements, two ramps to a margin table 8 illustrated schematically downstream by a mixed line.
- the outer edges of shelves 5 and 6 are maintained respectively against the side consoles 9 and 10 of the device 1, and the edges interiors are fixed against two external bearings 11 and 12 held in the frame not shown of the packaging production machine.
- inner bearings 13, 14 support, together with the outer bearings 11, 12, two pulleys 15, 16 in their upstream end.
- Around these pulleys turn two belts 17, 18 ( Figure 3) which allow to bring on the table margin 8 each plate element 2 successively introduced into the packaging production machine.
- Each segment of the PTO shaft supports an oriented flap upstream towards the downstream front edge of the plate element 2, so that the three flaps 30, 31, 32, rigorously aligned, constitute a stop transverse plane for the longitudinal alignment of the sheet 2.
- the flaps are shown in a so-called closed position, ie in position vertical so as to oppose the passage of the element in plate 2 and thus constitute the alignment stop.
- the central flap 30 is attached against the central segment 26 thanks to two supports 33 visible in FIG. 3. These supports are screwed on the upper part of the central segment, symmetrically about the longitudinal axis of the machine, on flat 34 machined by milling (figure 2).
- the central flap 30 is finally fixed against these supports using screws 35.
- the two side flaps 31 and 32 are held against the respective segments 27, 28 by screws 36 passing through and tightening flanges 37 regularly spaced on these segments.
- the upper corners of the shutters are rounded, particularly pronounced for the outer corners of the side flaps 31, 32, thus ensuring maximum clearance for the passage of a sheet strongly tiled.
- the central flap 30 has a horizontal rectilinear upper edge, thus an opening 38 formed in its upper middle part. This opening allows the passage of an optical beam from a sensor, not illustrated, placed on the longitudinal axis of the machine downstream of the central flap. This sensor adjusts the height of the stack relative to the device allowing the longitudinal alignment of the sheets, which allows the introduction one sheet at a time on the margin table.
- the side flaps 31, 32 are identical and have a trapezoidal shape such that by adjusting the height of their outer end by means of the vertical displacement of the bearings 21, 22 corresponding, it is possible to align the upper edge of these flaps with that of the central flap, thus defining a rectilinear horizontal line.
- This configuration is illustrated in figure 1 by flaps 30 and 32 opposite side driver.
- the trapezoidal shape of these side flaps is also machined such that when the height of their outer end is at the point the lower, their lower edge is parallel to the adjacent edge of a plate of protection 39 fixed by screws 40 ( Figure 3) to a body not shown connected to the frame of the machine.
- This second configuration is shown in Figure 1 by the flaps 30 and 31 on the driver's side, which then follow the outline of the protective plate 39 by minimizing the interstitial space.
- FIG. 2 illustrates the mechanism defining the kinematic chain of the device of the present invention.
- the positions occupied by the various illustrated elements are strictly identical to those taken by the same elements in Figure 1. So that the flaps of the device 1 can alternately lower themselves, with the intention of allowing the passage of the element in plate 2, and get up to align the next element, it is necessary that the cardan shaft 24 is itself animated by this same movement varying within a determined angular range, preferably chosen between 0 and 45 degrees towards the direction of movement of the elements in plate.
- This alternating movement is governed by a control lever 41 placed at the driver side end of a drive shaft 42. The latter is kept in rotation by the bearing 14 and by the side console 10 in which is another rolling bearing.
- the alternating movement of the lever 41 is given by the cam 43 mounted on a shaft 44 which is driven in continuous rotation by a device, not illustrated, synchronized with the scrolling speed of the plate elements.
- the particular shape of the cam 43 is read by a reading roller 45 mounted at the end of an arm 46.
- the opposite end of this arm is rigidly fixed to the terminal part, opposite conductive side of the shaft 42 so that the rotary movement arm 46 can be transmitted to the control lever 41.
- the control lever 41 oscillates from a high position to a low position, and vice versa, around the axis of the driveshaft 42.
- a pull tab 48 Freely mounted in rotation, a pull tab 48 connects the joint 47 to the joint 49 firmly held on the central segment 26 of the cardan shaft.
- the zipper 48 constitutes the central transmission element of a joint acting on the segment 26 of the cardan shaft, inducing a moment, alternately in one direction then in the other, which rotates the entire shaft 24 so as to be able to lower and successively raise the flaps 30, 31 and 32.
- two tension springs 51, 52 connect respectively the lateral segments 27 and 28 of the cardan shaft with the pins 53 fixed rigidly against the outer face of the bearings 11 and 12.
- the upstream end of these springs is held on a bearing placed between a spring clip 55 and a spacer 56 tightened together by a screw 57.
- the spring clip is attached to it, like the flanges 37, to the corresponding side segment of the PTO shaft.
- two openings 58 allow these last to evolve freely.
- Figures 4 and 5 are side views, viewed from the side conductor, of the mechanism of FIG. 2 respectively when the flaps 30, 31, 32 are in the closed position, and when they are open. These two figures allow to better represent the movements of the parts of the mechanism which actuate the lowering and raising of the flaps of the device according to the invention.
Landscapes
- Making Paper Articles (AREA)
- Registering Or Overturning Sheets (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
- Attitude Control For Articles On Conveyors (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Specific Conveyance Elements (AREA)
- Advancing Webs (AREA)
Abstract
Description
La présente invention a pour objet un dispositif pour l'alignement longitudinal d'éléments en plaques dans une station d'introduction d'une machine les travaillant en vue d'une production d'emballages. Dans une telle machine, les éléments en plaque, ou feuilles de papier ou de carton, sont successivement pris du dessus d'une pile et amenés à plat en direction d'un enchaínement de stations de travail telles que des stations d'impression, de découpage et d'éjection des déchets, avant d'être rempilés dans une station de réception.The present invention relates to a device for alignment longitudinal of plate elements in a feed station machine working them for packaging production. In such machine, the elements in plate, or sheets of paper or cardboard, are successively taken from the top of a pile and brought flat towards a linking work stations such as printing stations, cutting and ejection of waste, before being re-stacked in a reception.
A l'introduction, les feuilles sont stockées sur un plateau porte-pile pourvu d'un déplacement vertical automatique à chaínes, de façon à ce que le niveau supérieur de la pile reste constant durant l'introduction des feuilles dans la machine de production. Les feuilles sont prises, une à une du dessus de la pile, par des ventouses souleveuses qui les porteront vers des ventouses transporteuses. Dotées d'un mouvement horizontal en va-et-vient, les ventouses transporteuses amènent chaque feuille en direction d'une table de marge où les éléments en plaque sont ainsi déposés en nappe.At the introduction, the sheets are stored on a battery tray provided with automatic vertical movement with chains, so that the upper level of the stack remains constant during the introduction of the sheets into the production machine. The leaves are taken, one by one from the top of the stack, by lifting suction cups which will carry them towards suction cups conveyors. With a horizontal back-and-forth movement, the suction cups bring each sheet towards a table margin where the plate elements are thus deposited in a sheet.
Une façon de réaliser le transport de chaque feuille depuis l'entrée de la table de marge jusqu'à la première station de traitement est d'utiliser conjointement un tapis d'entraínement, constitué de courroies, et des galets presseurs qui permettent de maintenir la feuille sur le tapis et l'amener au devant de la première station de travail. Chaque feuille est ensuite emportée dans les stations qui suivent par une barre de pinces montée sur un train de chaínes.One way to transport each sheet from the entrance from the margin table to the first processing station is to use jointly a training mat, consisting of belts, and pebbles pressers that keep the sheet on the carpet and bring it to the in front of the first work station. Each sheet is then taken away in the stations which follow by a clamp bar mounted on a train of chains.
C'est dans la station d'introduction, juste avant la table de marge, que l'objet de la présente invention trouve son utilisation. Pour assurer le bon fonctionnement de la machine, il est nécessaire, d'une part, de garantir l'alignement correct du bord frontal de chaque élément en plaque introduit de manière à ce qu'il ne soit pas engagé de biais, et d'autre part d'assurer la cadence à laquelle ces éléments sont déposés sur la table de marge. Cette dernière condition définit l'emplacement longitudinal de la feuille sur le tapis, soit son positionnement dans le sens de son déplacement, de manière à ce que la barre de pinces puisse correctement la saisir au moment de son passage. Cette cadence peut se mesurer physiquement par l'espacement existant entre deux bords frontaux de deux éléments en plaque successifs sur la table de marge. La mise en place d'un dispositif pour l'alignement du bord frontal de la feuille permet de remplir à la fois ces deux conditions dans la mesure où ce dispositif travaille en synchronisme avec la vitesse de production de la machine.It's in the introductory station, just before the margin table, that the object of the present invention finds its use. To ensure good operation of the machine, it is necessary, on the one hand, to guarantee the correct alignment of the front edge of each plate element introduced from so that it is not biased, and secondly to ensure the rate at which these elements are deposited on the margin table. This last condition defines the longitudinal location of the sheet on the carpet, either its positioning in the direction of its movement, so that the gripper bar can correctly grasp it when it is passage. This cadence can be physically measured by the spacing existing between two front edges of two successive plate elements on the margin table. Installation of a device for edge alignment front of the sheet makes it possible to fulfill both of these two conditions in the measure that this device works in synchronism with the production speed of the machine.
Un dispositif qui permet l'alignement longitudinal des feuilles est usuellement formé d'un arbre transversal reliant, d'un bout à l'autre, la largeur de la table de marge. Cet arbre est placé légèrement en dessous du niveau supérieur de la feuille maintenue par les ventouses transporteuses. Lorsqu'elle est orientée verticalement, une lame, s'étendant le long de l'arbre transversal et solidaire de celui-ci, fait office de butée pour le bord frontal de la feuille et permet ainsi son alignement. Synchronisé avec la cadence de production de la machine, l'arbre est animé d'un mouvement répétitif en rotation de 0 à 45 degrés, de sorte que la lame constitue un volet placé alternativement dans une position verticale fermée, et dans une position oblique ouverte qui autorise dans ce dernier cas le passage de la feuille dans la table de marge.A device which allows the longitudinal alignment of the sheets is usually formed of a transverse shaft connecting, from one end to the other, the width from the margin table. This tree is placed slightly below the level top of the sheet held by the suction cups. When she is oriented vertically, a blade, extending along the transverse shaft and integral with it, acts as a stop for the front edge of the sheet and thus allows its alignment. Synchronized with the production rate of the machine, the shaft is driven by a repetitive movement in rotation from 0 to 45 degrees, so that the blade constitutes a shutter placed alternately in a closed vertical position, and in an open oblique position which allows in the latter case the passage of the sheet in the margin table.
Plusieurs dispositifs de ce genre sont connus à ce jour mais peu d'entre eux tiennent compte d'un problème subordonné lié à l'état initial des feuilles devant être introduites dans la machine de production. De nature organique, les feuilles de papier ou de carton utilisées dans la confection d'emballages sont particulièrement sensibles aux conditions ambiantes dans lesquelles elles sont travaillées ou stockées. Le degré d'humidité de l'air environnant est un des paramètres principaux qui influence de manière significative les caractéristiques mécaniques, dimensionnelles et surtout géométrique de la feuille. Bien qu'initialement de forme plane, cette dernière aura souvent tendance à se courber suite aux variations du taux hygrométrique de l'air environnant par exemple, mais aussi suite à une impression déposée sur l'une de ses faces. Ce phénomène de bombage est usuellement désigné par le terme de "tuilage" dans le jargon du métier. Le tuilage est particulièrement apparent pour les feuilles de carton ondulé et, est d'autant plus marqué que l'épaisseur de la feuille est grande ou que la qualité des matériaux constituant les deux faces de la feuille diffère; ce qui est souvent le cas pour les cartons d'emballages esthétiques dotés d'impressions. On notera encore que le phénomène de tuilage ne se généralise pas forcément par une déformation symétrique par rapport à l'un des deux axes de symétrie de la feuille. II se peut en effet que la feuille soit affectée d'une courbure plus prononcée dans sa moitié gauche que dans sa moitié droite ou inversement.Several devices of this kind are known to date but few of them take into account a subordinate problem linked to the initial state of sheets to be fed into the production machine. By nature organic, sheets of paper or cardboard used in clothing packaging are particularly sensitive to ambient conditions in which they are processed or stored. The humidity level of the air surrounding is one of the main parameters that influences significant mechanical, dimensional and above all leaf geometric. Although initially planar, the latter will often tend to bend due to variations in humidity surrounding air for example, but also following a deposited impression on one of its faces. This bending phenomenon is usually designated by the term "tuilage" in the jargon of the trade. The curl is particularly noticeable for sheets of corrugated cardboard and, is all the more marked that the thickness of the sheet is great or that the quality of the materials constituting the two sides of the sheet differs; which is often the case for aesthetic packaging boxes with prints. It should also be noted that the phenomenon of curling is not necessarily generalized by a deformation symmetrical about one of the two axes of symmetry of the sheet. It may be in fact that the sheet is affected by a more pronounced curvature in its left half than in its right half or vice versa.
L'utilisation en machine de feuilles fortement tuilées pose différents problèmes notamment au moment de l'introduction de la feuille dans la table de marge, mais également lors de l'alignement du bord frontal de la feuille juste avant son introduction. Etant généralement saisie par les ventouses dans sa partie centrale, l'engagement d'une feuille fortement tuilée dans la table de marge provoque une gêne au niveau des parties latérales de la feuille qui auront tendance à crocher contre le bord frontal de la table de marge. En effet, vu la courbure concave de la feuille, le bord des parties latérales de ces feuilles se trouve bien en dessous du niveau d'introduction qui correspond à la partie centrale de la feuille, tenue par les ventouses.Machine use of heavily tiled sheets poses different problems especially when introducing the sheet into the table margin, but also when aligning the front edge of the sheet just before its introduction. Being generally gripped by suction cups in its central part, the engagement of a heavily tiled sheet in the table margin causes discomfort at the lateral parts of the leaf which will tend to hook against the front edge of the margin table. Indeed, seen the concave curvature of the leaf, the edge of the lateral parts of these leaves is well below the introductory level which corresponds to the part leaf center, held by suction cups.
Pour remédier à ce problème, il est connu d'utiliser des tablettes placées sur la partie frontale de la table de marge telles qu'elles ont été prévues dans le brevet CH 651'807. Constituées de plaques ou de barres incurvées vers le bas, ces tablettes facilitent l'introduction des parties latérales importunément courbées d'une feuille affectée d'un certain tuilage.To remedy this problem, it is known to use tablets placed on the front of the margin table as they were provided for in patent CH 651,807. Consisting of plates or bars curved downwards, these shelves facilitate the insertion of the side parts annoyingly curved with a leaf affected by a certain curl.
Or dans le cas où des feuilles fortement tuilées doivent être utilisées, l'emploi d'un volet tel que celui décrit précédemment constitue toujours un obstacle pour leur passage. En effet, les parties latérales tombantes de ces feuilles butteront encore et malgré tout contre les parties latérales du volet ouvert, tout en risquant de corner les coins de la feuille. Pour pallier ce problème, une des solutions connues consiste à réduire la longueur du volet en ne gardant que sa partie centrale de sorte que les bords latéraux de la feuille tuilée puissent alors passer sans encombre suite au dégagement latéral ainsi formé. Cette solution nécessite une partition du volet en plusieurs éléments amovibles ou en une multitude de segments déplaçables à volonté.However in the case of strongly tiled leaves must be used, the use of a shutter like the one described above constitutes always an obstacle for their passage. Indeed, the side parts drooping of these leaves will still butter up against the parts side of the open shutter, while risking to corner the corners of the sheet. For to overcome this problem, one of the known solutions consists in reducing the length of the shutter, keeping only its central part so that the side edges of the tiled sheet can then pass without hindrance following the clearance lateral thus formed. This solution requires partitioning the shutter into several removable elements or in a multitude of displaceable segments at will.
Cependant, la pratique de cette option fait apparaítre plusieurs inconvénients qui sont d'une part un alignement réduit, peu souhaitable, se limitant à la partie centrale de la feuille qui est fonction de l'importance de son tuilage, et d'autre part une manutention supplémentaire devant se pratiquer dans un espace réduit et peu aisé, en nécessitant l'emploi d'outils auxiliaires de montage et de démontage du volet. Sachant que le tuilage de feuilles empilées sur le porte-pile dans la station d'introduction varie également en fonction de la hauteur de la pile, une telle option nécessitera en cours de production, d'une part un contrôle permanent du passage des feuilles par-dessus le volet ouvert, et d'autre part une série d'interventions manuelles répétées visant à adapter la longueur de ce volet en fonction de l'importance de la courbure des feuilles. Ces multiples interventions impliquent en conséquence de fréquents arrêts de la machine qui renchérissent le coût de la production.However, the practice of this option reveals several disadvantages which are on the one hand a reduced alignment, undesirable, limiting to the central part of the leaf which is a function of the importance of its curling, and on the other hand additional handling to be practiced in a small and difficult space, requiring the use of auxiliary tools assembly and disassembly of the shutter. Knowing that the curling of stacked leaves on the battery holder in the insertion station also varies depending on the stack height, such an option will require during production, a share a permanent control of the passage of the sheets over the open shutter, and on the other hand a series of repeated manual interventions aimed at adapting the length of this component according to the importance of the curvature of the leaves. These multiple interventions consequently imply frequent stops of the machine which increases the cost of production.
La forme des tablettes latérales, favorisant l'introduction de la feuille, varie essentiellement en fonction du dégagement maximal que peut offrir, dans ses parties latérales, le dispositif pour l'alignement longitudinal de la feuille. Ce dégagement est inversement proportionnel à la place qu'occupent les parties latérales du volet lorsque celui-ci est adapté à la configuration nécessaire prévue pour permettre le passage de feuilles d'un certain tuilage. Plus le dégagement aux extrémités du volet est important, meilleur pourra être le passage des feuilles et d'autant plus fort pourra être leur tuilage. Mais d'une manière contradictoire, plus grande est la longueur de contact du bord frontal de la feuille contre le volet, meilleur sera l'alignement de la feuille et d'autant plus petit sera le dégagement latéral.The shape of the side shelves, favoring the introduction of the leaf, varies mainly according to the maximum clearance that can offer, in its lateral parts, the device for the longitudinal alignment of the leaf. This clearance is inversely proportional to the space occupied by the side parts of the flap when it is adapted to the configuration necessary to allow the passage of sheets of a certain curl. The greater the clearance at the ends of the flap, the better the passage of the leaves and all the stronger can be their curling. But of a contradictorily, the greater the contact length of the front edge the sheet against the shutter, the better the alignment of the sheet and all the more the smaller the lateral clearance.
Jusqu'à présent, le conducteur de la machine était contraint de trouver le compromis qui convenait au mieux à la situation particulière de ces deux constats antagonistes, ce qui engendrait les réglages répétés et peu commodes tels que ceux mentionnés ci-avant.Until now, the machine operator has been forced to find the compromise that best suited the particular situation of these two conflicting observations, which resulted in repeated adjustments and little dressers such as those mentioned above.
Pour remédier à ces inconvénients, l'objet de la présente invention propose, pour l'alignement longitudinal de feuilles, un dispositif à cardans dont l'arbre du volet de butée articulé peut acquérir une forme qui s'adapte à la courbure du bord frontal de la feuille tuilée. A cet effet, le dispositif de cette invention est conforme à ce qu'énonce la revendication 1.To remedy these drawbacks, the object of the present invention proposes, for the longitudinal alignment of sheets, a universal joint device whose the shaft of the articulated stop flap can acquire a shape which adapts to the curvature of the front edge of the tiled sheet. To this end, the device of this invention conforms to claim 1.
Les avantages résultant de la présente invention sont principalement consignés dans le fait qu'un tel dispositif permette d'une part de réaliser un alignement de la feuille sur la quasi-totalité de son bord frontal pour une gamme de feuilles affectées d'un tuilage important (jusqu'à 4 à 5 %), symétrique ou asymétrique. D'autre part, le dispositif selon l'invention à l'avantage de pouvoir rester à demeure dans la station d'introduction grâce à son aptitude particulière lui permettant de modifier aisément sa géométrie pour s'adapter aux formes bombées des feuilles tuilées. Avantageusement, aucune pièce ne doit être ajoutée ou enlevée du volet dudit dispositif, et aucun outil auxiliaire n'est nécessaire à son réglage, ce qui permet un gain de temps sensible lors de la préparation de la machine dans le cas d'un nouveau travail. Enfin par défaut d'existence, le risque de perdre certaines pièces du volet a l'intérêt d'être totalement écarté dans ce nouveau concept.The advantages resulting from the present invention are mainly recorded in the fact that such a device allows on the one hand align the sheet on almost all of its front edge to a range of leaves affected by significant curling (up to 4 to 5%), symmetrical or asymmetrical. On the other hand, the device according to the invention to the advantage of being able to remain permanently in the introduction station thanks to its particular ability allowing it to easily modify its geometry to adapt to the curved shapes of the tiled leaves. Advantageously, none part must not be added or removed from the flap of said device, and no tools auxiliary is only necessary for its adjustment, which saves time sensitive during the preparation of the machine in the case of a new job. Finally by lack of existence, the risk of losing certain parts of the shutter has the advantage of being totally excluded in this new concept.
Dans le but de définir quelques termes décrivant la position et l'orientation de certains éléments au sein de la machine se référant à la présente invention, on citera les appellations "côté conducteur" et "côté opposé conducteur" employées sans conteste pour faire référence à un côté désigné par rapport à l'axe médian longitudinal de la machine. Ce choix permet d'éviter toute confusion survenant avec les dénominations conventionnelles gauche et droite dépendantes du point de vue de l'observateur. Dans une optique semblable, on utilisera les termes usuels "longitudinal" et "transversal" qui se référent toujours à l'axe médian de la machine dont l'orientation est déterminée par la direction du défilement des éléments en plaque. Enfin on précisera aussi que les termes "amont" et "aval" font, quant à eux, référence au sens de défilement des éléments en plaque dans la machine de production.In order to define some terms describing the position and the orientation of certain elements within the machine referring to the present invention, we will mention the names "driver side" and "opposite side driver "used without question to refer to a designated side relative to the longitudinal median axis of the machine. This choice avoids any confusion arising with conventional names left and right dependent on the observer's point of view. In a perspective similar, we will use the usual terms "longitudinal" and "transverse" which always refer to the median axis of the machine whose orientation is determined by the direction of travel of the plate elements. Finally we will also specify that the terms "upstream" and "downstream" refer to the meaning of scrolling of plate elements in the production machine.
L'invention sera mieux comprise à l'étude d'un mode de réalisation pris à titre nullement limitatif et illustré par les figures annexées dans lesquelles:The invention will be better understood when studying an embodiment taken in no way as a limitation and illustrated by the figures appended in which:
La figure 1 est une vue en perspective du dispositif de l'invention vu depuis le côté conducteur de la machine en direction de l'aval, conformément au sens de déplacement des éléments en plaques.Figure 1 is a perspective view of the device of the invention seen from the driver side of the machine downstream, in accordance in the direction of movement of the plate elements.
La figure 2 est une vue en perspective du mécanisme illustrant la chaíne cinématique du dispositif de l'invention vu sous un même angle.Figure 2 is a perspective view of the mechanism illustrating the kinematic chain of the device of the invention seen from the same angle.
La figure 3 est une vue de dessus du dispositif de l'invention.Figure 3 is a top view of the device of the invention.
Les figures 4 et 5 sont des vues de profil, depuis le côté conducteur, du mécanisme de la figure 2 respectivement lorsque le volet de butée est fermé, et lorsqu'il est ouvert.Figures 4 and 5 are side views from the side conductor, of the mechanism of FIG. 2 respectively when the shutter of stopper is closed, and when open.
La figure 1 offre une vision générale du dispositif 1 pour
l'alignement longitudinal d'éléments en plaque 2, défilant selon le sens indiqué
par la flèche 3 située présentement sur l'axe longitudinal de la machine.
L'élément en plaque 2, illustré en trait mixte, n'est représenté que partiellement
par sa partie aval et possède un tuilage asymétrique dont la courbure est
apparente du côté conducteur. Le dispositif 1 comprend deux tablettes 5 et 6
pliées vers le bas sous un angle optimal et selon une ligne oblique 7, de façon
à constituer, pour les éléments en plaque les plus fortement tuilés, deux
rampes d'accès à une table de marge 8 illustrée schématiquement en aval par
un trait mixte. Les bords extérieurs des tablettes 5 et 6 sont maintenus
respectivement contre les consoles latérales 9 et 10 du dispositif 1, et les bords
intérieurs sont quant à eux fixés contre deux paliers extérieurs 11 et 12
maintenus au bâti non illustré de la machine de production d'emballages. Deux
paliers intérieurs 13, 14 soutiennent, conjointement avec les paliers extérieurs
11, 12, deux poulies 15, 16 dans leur extrémité amont. Autour de ces poulies
tournent deux courroies 17, 18 (figure 3) qui permettent d'amener sur la table
de marge 8 chaque élément en plaque 2 successivement introduit dans la
machine de production d'emballages.Figure 1 provides a general view of the device 1 for
the longitudinal alignment of elements in
En amont sur les parties frontales des deux consoles latérales 9 et
10, glissent verticalement, dans des rainures 20, deux paliers 21, 22 qui
peuvent y être bloqués indépendamment l'un de l'autre grâce au serrage d'une
vis terminée par une poignée 23. Entre ces deux paliers se trouve monté un
arbre 24 articulé par quatre cardans 25 mieux visibles sur la figure 2. Cet arbre
24 à cardans est constitué de trois segments, à savoir, deux segments latéraux
27 et 28 et un segment central 26 soutenu par les paliers 13, 14. Grâce aux
déplacements verticaux des paliers 21, 22, il est possible de modifier aisément,
dans une certaine plage, l'inclinaison des segments latéraux 27, 28 pivotant
autour des deux cardans 25 intérieurs. Bien que ce réglage soit effectué
manuellement à l'aide des poignées 23, on mentionnera qu'il pourrait être
automatisé, voire asservi, en fonction du tuilage importun des feuilles qui est
susceptible de varier durant toute la production.Upstream on the front parts of the two
Chaque segment de l'arbre à cardans supporte un volet orienté
vers l'amont en direction du bord frontal aval de l'élément en plaque 2, de sorte
que les trois volets 30, 31, 32, rigoureusement alignés, constituent une butée
plane transversale pour l'alignement longitudinal de la feuille 2. Dans la figure
1, les volets sont représentés dans une position dite fermée, soit en position
verticale de façon à s'opposer au passage de l'élément en plaque 2 et
constituer ainsi la butée d'alignement. Le volet central 30 est rapporté contre le
segment central 26 grâce à deux supports 33 visibles sur la figure 3. Ces
supports sont vissés sur la partie supérieure du segment central,
symétriquement par rapport à l'axe longitudinal de la machine, sur des plats 34
usinés par fraisage (figure 2). Le volet central 30 est finalement fixé contre ces
supports à l'aide des vis 35. Les deux volets latéraux 31 et 32 sont quant à eux
maintenus contre les segments respectifs 27, 28 par des vis 36 traversant et
serrant des brides 37 régulièrement espacées sur ces segments. Each segment of the PTO shaft supports an oriented flap
upstream towards the downstream front edge of the
Les coins supérieurs des volets sont de forme arrondie,
particulièrement prononcée pour les coins extérieurs des volets latéraux 31, 32,
assurant ainsi un dégagement maximal pour le passage d'une feuille fortement
tuilée. Le volet central 30 possède un bord supérieur rectiligne horizontal, ainsi
qu'une ouverture 38 ménagée dans sa partie médiane supérieure. Cette
ouverture permet le passage d'un faisceau optique issu d'un capteur, non
illustré, placé sur l'axe longitudinal de la machine en aval du volet central. Ce
capteur permet de régler la hauteur de la pile par rapport au dispositif
permettant l'alignement longitudinal des feuilles, ce qui permet l'introduction
d'une seule feuille à la fois sur la table de marge. Les volets latéraux 31, 32
sont identiques et ont une forme trapézoïdale telle qu'en réglant la hauteur de
leur extrémité extérieure à l'aide du déplacement vertical des paliers 21, 22
correspondant, il est possible d'aligner l'arête supérieure de ces volets avec
celle du volet central en définissant ainsi une ligne horizontale rectiligne. Cette
configuration est illustrée dans la figure 1 par les volets 30 et 32 côté opposé
conducteur. La forme trapézoïdale de ces volets latéraux est également usinée
telle que, lorsque la hauteur de leur extrémité extérieure se trouve au point le
plus bas, leur arête inférieure est parallèle au bord adjacent d'une plaque de
protection 39 fixée par des vis 40 (figure 3) à un organe non illustré relié au bâti
de la machine. Cette seconde configuration est représentée dans la figure 1
par les volets 30 et 31 côté conducteur, qui épousent alors le contour de la
plaque de protection 39 en réduisant au maximum l'espace interstitiel.The upper corners of the shutters are rounded,
particularly pronounced for the outer corners of the side flaps 31, 32,
thus ensuring maximum clearance for the passage of a sheet strongly
tiled. The
La figure 2 illustre le mécanisme définissant la chaíne cinématique
du dispositif de la présente invention. Les positions occupées par les divers
éléments illustrés sont rigoureusement identiques à celles prises par les
mêmes éléments dans la figure 1. Pour que les volets du dispositif 1 puissent
alternativement s'abaisser, dans l'intention de laisser le passage de l'élément
en plaque 2, et se relever afin d'aligner le prochain élément venu, il est
nécessaire que l'arbre 24 à cardans soit lui-même animé de ce même
mouvement variant dans une plage angulaire déterminée, préférentiellement
choisie entre 0 et 45 degrés en direction du sens de déplacement des éléments
en plaque. Ce mouvement alterné est régit par un levier de commande 41
placé à l'extrémité côté conducteur d'un arbre de transmission 42. Ce dernier
est maintenu en rotation par le palier 14 et par la console latérale 10 dans
laquelle se trouve un autre palier à roulement. Le mouvement alterné du levier
de commande 41 est donné par la came 43 montée sur un arbre 44 qui est
entraíné en rotation continue par un dispositif, non illustré, synchronisé avec la
vitesse de défilement des éléments en plaque.Figure 2 illustrates the mechanism defining the kinematic chain
of the device of the present invention. The positions occupied by the various
illustrated elements are strictly identical to those taken by the
same elements in Figure 1. So that the flaps of the device 1 can
alternately lower themselves, with the intention of allowing the passage of the element
in
Comme mieux visible sur les figures 3, 4 et 5, la forme particulière
de la came 43 est lue par un galet de lecture 45 monté à l'extrémité d'un bras
46. L'extrémité opposée de ce bras est fixée rigidement à la partie terminale,
côté opposé conducteur, de l'arbre 42 de façon à ce que le mouvement rotatif
du bras 46 puisse être transmis au levier de commande 41. Terminé par une
articulation 47, le levier de commande 41 oscille d'une position haute à une
position basse, et inversement, autour de l'axe de l'arbre de transmission 42.
Montée libre en rotation, une tirette 48 relie l'articulation 47 à l'articulation 49
fermement maintenue sur le segment central 26 de l'arbre à cardans. La tirette
48 constitue l'élément central de transmission d'une articulation agissant sur le
segment 26 de l'arbre à cardans, en induisant un moment, alternativement
dans un sens puis dans l'autre, qui entraíne en rotation l'ensemble de l'arbre 24
de façon à pouvoir abaisser et relever successivement les volets 30, 31 et 32.As best seen in Figures 3, 4 and 5, the particular shape
of the
Pour compenser les jeux de la chaíne cinématique et assurer la
commande par came, deux ressorts de traction 51, 52 relient respectivement
les segments latéraux 27 et 28 de l'arbre à cardans aux tourillons 53 fixés
rigidement contre la face extérieure des paliers 11 et 12. L'extrémité amont de
ces ressorts est maintenue sur un roulement placé entre un attache-ressort 55
et une entretoise 56 serrés ensemble par une vis 57. Comme mieux visible sur
la figure 2, l'attache-ressort est quant à lui fixé, comme les brides 37, au
segment latéral correspondant de l'arbre à cardans. Ménagée dans les
tablettes 5 et 6 au-dessus des ressorts, deux ouvertures 58 permettent à ces
derniers d'évoluer librement.To compensate for backlash in the kinematic chain and ensure
cam control, two tension springs 51, 52 connect respectively
the
Les figures 4 et 5 sont des vues de profil, vues depuis le côté
conducteur, du mécanisme de la figure 2 respectivement lorsque les volets 30,
31, 32 sont en position fermée, et lorsqu'ils sont ouverts. Ces deux figures
permettent de mieux représenter les mouvements des pièces du mécanisme
qui actionnent l'abaissement et le relèvement des volets du dispositif selon
l'invention.Figures 4 and 5 are side views, viewed from the side
conductor, of the mechanism of FIG. 2 respectively when the
De nombreuses améliorations peuvent être apportées à ce dispositif dans le cadre des revendications.Many improvements can be made to this device within the scope of the claims.
Claims (9)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH00448/00A CH693951A5 (en) | 2000-03-08 | 2000-03-08 | Device for the longitudinal alignment of plate-like members in an infeed station of a machine processing them. |
CH4482000 | 2000-03-08 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1136404A2 true EP1136404A2 (en) | 2001-09-26 |
EP1136404A3 EP1136404A3 (en) | 2003-01-02 |
EP1136404B1 EP1136404B1 (en) | 2004-07-21 |
Family
ID=4515392
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01103808A Expired - Lifetime EP1136404B1 (en) | 2000-03-08 | 2001-02-16 | Device for longitudinally aligning plate-like elements in a feeding station of a machine for treating them |
Country Status (12)
Country | Link |
---|---|
US (1) | US6481709B2 (en) |
EP (1) | EP1136404B1 (en) |
JP (1) | JP3418181B2 (en) |
KR (1) | KR100414407B1 (en) |
CN (1) | CN1152813C (en) |
AT (1) | ATE271509T1 (en) |
BR (1) | BR0100922B1 (en) |
CA (1) | CA2339561C (en) |
CH (1) | CH693951A5 (en) |
DE (1) | DE60104350T2 (en) |
ES (1) | ES2225322T3 (en) |
TW (1) | TW491808B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100414407B1 (en) * | 2000-03-08 | 2004-01-07 | 봅스트 쏘시에떼 아노님 | Device for the longitudinal alignment of plate elements within an infeed station of a machine working them |
Families Citing this family (10)
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CH694086A5 (en) * | 2000-05-16 | 2004-07-15 | Bobst Sa | forming press. |
CN103395299B (en) * | 2013-07-11 | 2016-05-11 | 汤振华 | A kind of print media vertical location device |
DE102014014939A1 (en) * | 2014-10-07 | 2016-04-07 | Kolbus Gmbh & Co. Kg | Apparatus and method for erecting mainly flat material blanks |
US11485101B2 (en) | 2017-07-14 | 2022-11-01 | Georgia-Pacific Corrugated Llc | Controls for paper, sheet, and box manufacturing systems |
US20190016551A1 (en) | 2017-07-14 | 2019-01-17 | Georgia-Pacific Corrugated, LLC | Reel editor for pre-print paper, sheet, and box manufacturing systems |
US11520544B2 (en) | 2017-07-14 | 2022-12-06 | Georgia-Pacific Corrugated Llc | Waste determination for generating control plans for digital pre-print paper, sheet, and box manufacturing systems |
US10642551B2 (en) | 2017-07-14 | 2020-05-05 | Georgia-Pacific Corrugated Llc | Engine for generating control plans for digital pre-print paper, sheet, and box manufacturing systems |
US11449290B2 (en) | 2017-07-14 | 2022-09-20 | Georgia-Pacific Corrugated Llc | Control plan for paper, sheet, and box manufacturing systems |
CN113173442B (en) * | 2020-01-18 | 2024-03-29 | 长兴县泗安民丰彩印厂 | Corrugated board composite output equipment and production line thereof |
CN112721992B (en) * | 2021-01-29 | 2024-07-12 | 中车山东机车车辆有限公司 | Air brake device and rail vehicle |
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- 2000-03-08 CH CH00448/00A patent/CH693951A5/en not_active IP Right Cessation
-
2001
- 2001-02-16 AT AT01103808T patent/ATE271509T1/en not_active IP Right Cessation
- 2001-02-16 EP EP01103808A patent/EP1136404B1/en not_active Expired - Lifetime
- 2001-02-16 DE DE60104350T patent/DE60104350T2/en not_active Expired - Lifetime
- 2001-02-16 ES ES01103808T patent/ES2225322T3/en not_active Expired - Lifetime
- 2001-02-23 TW TW090104131A patent/TW491808B/en not_active IP Right Cessation
- 2001-02-27 US US09/794,840 patent/US6481709B2/en not_active Expired - Lifetime
- 2001-03-07 CA CA002339561A patent/CA2339561C/en not_active Expired - Fee Related
- 2001-03-07 KR KR10-2001-0011644A patent/KR100414407B1/en active IP Right Grant
- 2001-03-07 JP JP2001062961A patent/JP3418181B2/en not_active Expired - Lifetime
- 2001-03-07 BR BRPI0100922-2A patent/BR0100922B1/en not_active IP Right Cessation
- 2001-03-08 CN CNB011112085A patent/CN1152813C/en not_active Expired - Lifetime
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Also Published As
Publication number | Publication date |
---|---|
JP3418181B2 (en) | 2003-06-16 |
TW491808B (en) | 2002-06-21 |
EP1136404B1 (en) | 2004-07-21 |
BR0100922B1 (en) | 2008-11-18 |
JP2001270637A (en) | 2001-10-02 |
DE60104350D1 (en) | 2004-08-26 |
DE60104350T2 (en) | 2005-08-04 |
US20010020767A1 (en) | 2001-09-13 |
EP1136404A3 (en) | 2003-01-02 |
US6481709B2 (en) | 2002-11-19 |
CA2339561C (en) | 2006-03-28 |
BR0100922A (en) | 2001-10-30 |
KR20010088422A (en) | 2001-09-26 |
KR100414407B1 (en) | 2004-01-07 |
ES2225322T3 (en) | 2005-03-16 |
CH693951A5 (en) | 2004-05-14 |
ATE271509T1 (en) | 2004-08-15 |
CN1152813C (en) | 2004-06-09 |
CA2339561A1 (en) | 2001-09-08 |
CN1312211A (en) | 2001-09-12 |
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