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WO2007012753A1 - Machine for making stuffing mats - Google Patents

Machine for making stuffing mats Download PDF

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Publication number
WO2007012753A1
WO2007012753A1 PCT/FR2006/001818 FR2006001818W WO2007012753A1 WO 2007012753 A1 WO2007012753 A1 WO 2007012753A1 FR 2006001818 W FR2006001818 W FR 2006001818W WO 2007012753 A1 WO2007012753 A1 WO 2007012753A1
Authority
WO
WIPO (PCT)
Prior art keywords
rollers
machine according
manufacturing machine
train
mattress manufacturing
Prior art date
Application number
PCT/FR2006/001818
Other languages
French (fr)
Inventor
Théodore Baumuller
Original Assignee
Naturunion Sas
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Naturunion Sas filed Critical Naturunion Sas
Publication of WO2007012753A1 publication Critical patent/WO2007012753A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D5/00—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles
    • B31D5/0039—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads
    • B31D5/0043—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads including crumpling flat material
    • B31D5/0052—Multiple-step processes for making three-dimensional articles ; Making three-dimensional articles for making dunnage or cushion pads including crumpling flat material involving rollers
    • 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
    • B31F1/12—Crêping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
    • B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
    • B65D81/09—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents using flowable discrete elements of shock-absorbing material, e.g. pellets or popcorn
    • 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
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D2205/00—Multiple-step processes for making three-dimensional articles
    • B31D2205/0005—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads
    • B31D2205/0011—Multiple-step processes for making three-dimensional articles for making dunnage or cushion pads including particular additional operations
    • B31D2205/0047—Feeding, guiding or shaping the material

Definitions

  • the present invention relates to a machine for manufacturing padding mattresses from a paper web, by continuously creasing the band by means of a driver / crumper for obtaining a quilting effect.
  • These mattresses are for example used for wedging and protection of items to be packaged in crates.
  • the two successive trains are controlled by the same electric motor, the speed difference between the two being obtained by means of a gear transmission system imposing a constant speed ratio.
  • the cutting system disposed downstream of the two drive trains / crumpling, is also controlled by an electric motor.
  • a dedicated electronic card allows different modes of operation, and in particular manages the operating cycles of fixed speed motors.
  • the machine of the invention is characterized in that the severing device consists of the double stack of superimposed rolls, the first train being kept at a standstill and blocking the paper strip while the second train is subjected to rapid acceleration from the stop to cut the web between the two sets of rollers.
  • the severing device consists of the double stack of superimposed rolls, the first train being kept at a standstill and blocking the paper strip while the second train is subjected to rapid acceleration from the stop to cut the web between the two sets of rollers.
  • two different operating cycles of the double set of rollers make it possible to transform the latter from a training / creasing device to a disconnecting device and vice versa.
  • the machine of the invention comprises moreover a floor conferring a corrugation transverse to the band which precedes the double stack of superimposed rollers .
  • folding the lateral edges towards the center of the band gives a volume effect to the mattress.
  • transverse corrugations are generated in the paper web, substantially uniformly across its width, before it is driven by the first pair of rolls.
  • This training must be done by avoiding the crushing of the folds that can be created from said undulations, otherwise the expected volume could not be obtained.
  • the shape of the rolls of the first trains is designed so as to respect as much as possible these undulations, while ensuring the regular training of the band: the first train is for this purpose constituted by two fluted rollers, one of which at least comprises fluted annular portions alternating with peripheral grooves, the fluted portions facing the two rollers carrying the drive of the band.
  • the grooves which are for example also annular, leave spaces preventing the crushing of the folds, between the fluted portions carrying out the training. These splines are necessary to ensure the driving force of the band, any slip effect to be removed.
  • the second set of rolls is also constituted by two corrugated rolls, at least one of which has recesses distributed over its entire surface, which are distinct from each other both along the directions and generatrices of the roll and from length less than these.
  • these recesses interferes with a neighboring obvious, and none develops over the entire periphery or width of the roll. At least two of these recesses are placed on a path symbolized by a generator. In other words, it is still possible to find a path on the outer surface of the roller avoiding the recesses and leading from one end to the other of a generator or joining the starting point of a director. This feature is important because it ensures proper cutting of the crumpled paper tape by tearing.
  • these recesses are circular, or semi-circular extended by a rectangular portion in inclined plane. The semicircular edge is arranged at the front, in the direction of rotation. More precisely, these recesses are arranged in staggered relation to generatrices of the roll. In this case, a complete path from one end to the other of the cylinder and on its peripheral surface takes a sinusoidal shape.
  • the two roller trains are controlled by two separate motors whose rotational speed is adjustable and varies during operation.
  • the two pairs of rollers are therefore mechanically distinct, since each is driven by a specific motor. These are themselves powered and each driven separately, and their rotational speed is adjustable independently of one another.
  • these motors are asynchronous motors driven by frequency converters.
  • the variation in frequency resulting in an instantaneous variation in the rotational speed of the motor, allows a very flexible choice of the acceleration and deceleration curve of the motors, and consequently of the roller trains which are connected to them. It is easy to choose the top speed, as well as the speed ratio between the first and the second set of rollers, and thus obtain different qualities of creasing only via controlling the speed of rotation of the two successive trains.
  • These frequency inverters are each coupled to a programmer that allows to give body to the cycle of rotation, or to predict in advance a number of predetermined operating phases. Since the variators are programmable at will, it is easy to control the operation of the machine of the invention in a number of variants, or even to adapt it to the intended use.
  • This stage forming the transverse corrugation comprises a support for one face of the strip, consisting of axially-oriented rods arranged in the same plane, and connected at their distal ends of the roller trains to a cross-member in an arc whose curvature is provided so that the edges of the band converge towards the ends of the rollers.
  • the rods are oriented perpendicular to the cross. They then converge towards each other, which increase the height of the uncles as you approach the first set of rollers.
  • the operation of the machine in the two-motor configuration controlling each roll train is such that the advance, creasing and cutting of the paper web can be performed by a push mechanism such as when in a state, advance and crumpling are implemented, temporarily or not, cutting intervening when it changes state.
  • this push mechanism consists of a foot switch.
  • a continuous scrolling is obtained during the actuation of the pedal, performing a crumpling producing a certain length of padding mattress.
  • both engines brake to a standstill or almost, then the one controlling the downstream roll train restarts and accelerates abruptly, cutting off the padding mat already produced. .
  • FIG. 1 is a perspective view of the main elements of the invention
  • Figure 2 is a view from above
  • Figure 3 shows a side view of the same elements
  • FIG. 4 represents a diagram of the operation of a complete cycle according to a possibility implemented in the machine of the invention.
  • the first train consists of rollers (1) and (2) while the second train consists of rollers (3) and (4).
  • the strip of paper B which scrolls in the direction of the arrows F, passes firstly into a stage producing a transverse corrugation.
  • This is obtained by means of a support structure (5) consisting of rods (6, 7, 8) arranged in a substantially horizontal plane, and whose ends opposite the roller trains are connected to a crossbar (9) in an arc of a circle orienting the edges of the strip towards the ends of the rollers (1, 2).
  • the rods (6, 7, 8) are slightly closer to one another as we approach the roller trains (1 to 4) because they are perpendicular to the crossbar (9).
  • the borders of the band B are also approaching each other as the scrolling.
  • the relaxation in the transverse dimension is then transformed by means of the rods (6, 7, 8) into corrugations.
  • the corrugated band B is then driven by the first set of rollers (1, 2). This is driven by an asynchronous motor controlled in frequency at a speed faster than that of the second set of rollers (3,
  • the input rollers (1, 2) comprise a succession of annular corrugated portions (10) separated by equally annular grooves.
  • This configuration makes it possible to ensure a correct drive of the band B, without crushing the folds resulting from the transverse corrugation.
  • FIG 2 there is shown schematically the progression of the shape change of the band in the transverse dimension. A wrinkling in the other dimension is then performed between the rollers (1, 2) and the rollers (3, 4). The result is shown schematically at the output of this second train, the quilting then resulting from an increase in volume obtained by the combination of longitudinal and transverse creases.
  • the roller (3) has in this case circular recesses (11) separate from each other, both along the generatrices and the cylinder direction. Other forms are possible, however.
  • the roller (4) is a simple corrugated cylinder. This second train allows the sudden training of the band during the sectioning phase.
  • FIG. 3 clearly shows the setting in volume of the band B.
  • the support (5) comprising three rods (6 to 8) is slightly inclined, bringing the band gradually in the plane of passage between the roll trains (1, 2, 3, 4).
  • This support (5) creates in the strip transverse corrugations which give, in side view, the triangular surface shown in FIG. 3 upstream of the rollers (1, 2).
  • the reduced speed of the rollers (3, 4) then leads to a transverse pleating as shown between the two roll trains, the resulting final embossing being symbolized by the last portion, shown downstream of the rollers (3, 4).
  • Figure 4 shows a diagram of a complete cycle of operation.
  • Time is represented on the abscissa, and the speed on the y-axis. The latter can be characterized either by the frequency, on which it depends, or directly by the number of revolutions minutes.
  • the programming of the two motors is done in the following way: when the pedal is actuated, which corresponds to the level 1 of this one, the motor (1) and the motor (2) have a phase of parallel acceleration, the motor (1) however reaching a much higher speed than the engine (2) (the ratio is greater than 2). This is Phase 1.
  • Phase 2 represents the operating platform, at constant speed, during a production phase of cushioning mat.
  • the frequency inverters of the motors (1 and 2) are programmable at will and it is therefore possible to implement other operating diagrams.
  • the operating phases are then performed in the following order: 4-1-2-3.
  • a short pulse on the footswitch will produce sectioning and reproduce said preprogrammed length mattress. It is also possible to provide that a prolonged action on the same switch can lengthen the piece already produced, cut and reproduce a mattress at said preprogrammed length.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

The invention concerns a machine for making stuffing mats from a paper web (B) by continuously creasing the web (B) using a driving/creasing device consisting of two trains of superimposed rollers (1, 4) arranged one behind the other, the first train driving the web (B), the second train rotating at a more reduced speed than the first for creasing, the mats being then obtained by transversely segmenting the creased web. The segmenting device consists of a double train of superimposed rollers (1, 4), the first train being maintained fixed and blocking the paper web (B) while the second train is subjected to a rapid acceleration from a stopped position so as to cut the web (B) between the two trains of rollers.

Description

Machine de fabrication de matelas de rembourrage Padding mattress manufacturing machine
La présente invention concerne une machine de fabrication de matelas de rembourrage à partir d'une bande de papier, par froissage en continu de la bande au moyen d'un dispositif d'entraînement / froissage permettant l'obtention d'un effet de matelassage.The present invention relates to a machine for manufacturing padding mattresses from a paper web, by continuously creasing the band by means of a driver / crumper for obtaining a quilting effect.
Ces matelas sont par exemple utilisés pour le calage et la protection d'articles à emballer dans des caisses.These mattresses are for example used for wedging and protection of items to be packaged in crates.
De telles machines sont de plus en plus souvent utilisées car elles offrent une alternative qui prend en compte des considérations environnementales que n'intègrent pas les techniques encore massivement employées de calage et de rembourrage utilisant des produits en plastique (double feuille à alvéoles remplies d'air) ou en matériau synthétique (chips en polystyrène). Or, en particulier en Europe et en Amérique du Nord, les législations, reflétant des préoccupations écologiques croissantes, sont devenues de plus en plus draconiennes sur la question du recyclage de ces matériaux.Such machines are more and more often used because they offer an alternative that takes into account environmental considerations that do not integrate the still widely used techniques of cushioning and padding using plastic products (double foil with cells filled with air) or synthetic material (polystyrene chips). However, particularly in Europe and North America, legislation, reflecting growing environmental concerns, has become increasingly drastic on the issue of recycling these materials.
Ces machines, dans leur configuration actuelle, sont constituées de deux trains de deux rouleaux superposés disposés l'un à la suite de l'autre, le premier train entraînant la bande alors que le second train, tournant à vitesse plus réduite, permet de réaliser un froissage transversal. Les matelas sont ensuite obtenus par sectionnement transversal de la bande froissée.These machines, in their current configuration, consist of two trains of two superposed rollers arranged one after the other, the first train driving the band while the second train, rotating at a lower speed, allows to achieve a transverse wrinkling. The mattresses are then obtained by transverse sectioning of the crumpled strip.
Les deux trains successifs sont commandés par un même moteur électrique, la différence de vitesse entre les deux étant obtenue à l'aide d'un système de transmission par pignons imposant un rapport de vitesse constant. Le système de coupe, disposé en aval des deux trains d'entraînement / froissage, est également commandé par un moteur électrique. Une carte électronique dédiée permet différents modes de fonctionnement, et gère notamment les cycles de fonctionnement des moteurs à vitesse fixe.The two successive trains are controlled by the same electric motor, the speed difference between the two being obtained by means of a gear transmission system imposing a constant speed ratio. The cutting system, disposed downstream of the two drive trains / crumpling, is also controlled by an electric motor. A dedicated electronic card allows different modes of operation, and in particular manages the operating cycles of fixed speed motors.
Aux fins de réaliser une machine plus légère et plus économique, une nouvelle machine, faisant l'objet de la présente invention, a été conçue. Elle est en particulier dépourvue d'un système de sectionnement distinct, et permet une plus grande souplesse dans le choix, le contrôle et le réglage des vitesses de rotation des deux trains de rouleaux.In order to achieve a lighter and more economical machine, a new machine, the subject of the present invention, has been designed. It is in particular devoid of a separate cutting system, and allows greater flexibility in the choice, control and adjustment of the rotational speeds of the two sets of rollers.
A titre principal, la machine de l'invention est caractérisée en ce que le dispositif de sectionnement est constitué du double train de rouleaux superposés, le premier train étant maintenu à l'arrêt et bloquant la bande de papier alors que le second train subit une accélération rapide à partir de l'arrêt en vue de sectionner la bande entre les deux trains de rouleaux. En fait, deux cycles de fonctionnement différents du double train de rouleaux permettent de transformer ce dernier d'un dispositif d'entraînement / froissage à un dispositif de sectionnement et vice versa.Mainly, the machine of the invention is characterized in that the severing device consists of the double stack of superimposed rolls, the first train being kept at a standstill and blocking the paper strip while the second train is subjected to rapid acceleration from the stop to cut the web between the two sets of rollers. In fact, two different operating cycles of the double set of rollers make it possible to transform the latter from a training / creasing device to a disconnecting device and vice versa.
Le froissage obtenu entre les deux trains de rouleaux est, compte tenu de la différence de leur vitesse d'entraînement dans le sens du défilement, essentiellement d'allure transversale. Pour améliorer la mise en volume du matelas, et donc le rendre plus apte à sa fonction de rembourrage et de calage, la machine de l'invention comporte au surplus un étage conférant une ondulation transversale à la bande qui précède le double train de rouleaux superposés. Dans la machine de l'art antérieur, le pliage des bordures latérales vers le centre de la bande donne un effet de volume au matelas.The wrinkling obtained between the two roller trains is, given the difference in their drive speed in the direction of travel, essentially of transverse pace. To improve the volume of the mattress, and thus make it more suitable for its function padding and wedging, the machine of the invention comprises moreover a floor conferring a corrugation transverse to the band which precedes the double stack of superimposed rollers . In the machine of the prior art, folding the lateral edges towards the center of the band gives a volume effect to the mattress.
En d'autres termes, des ondulations transversales sont générées dans la bande de papier, de manière sensiblement uniforme sur toute sa largeur, avant qu'elle ne soit entraînée par la première paire de rouleaux. Cet entraînement doit s'effectuer en évitant l'écrasement des plis pouvant être créés à partir desdites ondulations, faute de quoi le volume espéré ne pourrait être obtenu. La forme des rouleaux des premiers trains est donc conçue de manière à respecter dans la mesure du possible ces ondulations, tout en assurant l'entraînement régulier de la bande : le premier train est à cet effet constitué de deux rouleaux cannelés, dont l'un au moins comporte des portions annulaires cannelées alternant avec des gorges périphériques, les portions cannelées en regard des deux rouleaux réalisant l'entraînement de la bande.In other words, transverse corrugations are generated in the paper web, substantially uniformly across its width, before it is driven by the first pair of rolls. This training must be done by avoiding the crushing of the folds that can be created from said undulations, otherwise the expected volume could not be obtained. The shape of the rolls of the first trains is designed so as to respect as much as possible these undulations, while ensuring the regular training of the band: the first train is for this purpose constituted by two fluted rollers, one of which at least comprises fluted annular portions alternating with peripheral grooves, the fluted portions facing the two rollers carrying the drive of the band.
Les gorges, qui sont par exemple également annulaires, laissent subsister des espaces empêchant l'écrasement des plis, entre les portions cannelées réalisant l'entraînement. Ces cannelures sont nécessaires pour assurer la force d'entraînement de la bande, tout effet de glissement devant être supprimé.The grooves, which are for example also annular, leave spaces preventing the crushing of the folds, between the fluted portions carrying out the training. These splines are necessary to ensure the driving force of the band, any slip effect to be removed.
Le second train de rouleaux est également constitué de deux rouleaux cannelés, dont l'un au moins comporte des évidements répartis sur l'ensemble de sa surface, distincts les uns des autres à la fois le long des directrices et des génératrices du rouleau et de longueur inférieure à celles-ci.The second set of rolls is also constituted by two corrugated rolls, at least one of which has recesses distributed over its entire surface, which are distinct from each other both along the directions and generatrices of the roll and from length less than these.
En d'autres termes, aucun de ces évidements n'interfère avec un évidemment voisin, et aucun ne se développe sur la totalité de la périphérie ou de la largeur du rouleau. Au moins deux de ces évidements sont donc placés sur un trajet symbolisé par une génératrice ou une directrice. En d'autres termes encore, il est toujours possible de trouver un trajet sur la surface externe du rouleau évitant les évidements et conduisant d'une extrémité à l'autre d'une génératrice ou rejoignant le point de départ d'une directrice. Cette caractéristique est importante car elle permet d'assurer un sectionnement convenable de la bande de papier froissé par déchirement. Selon une possibilité, ces évidements sont circulaires, ou encore semi- circulaires prolongés par une portion rectangulaire en plan incliné. L'arête semi- circulaire est disposée à l'avant, dans le sens de la rotation. Plus précisément encore, ces évidements sont disposés en quinconce par rapport à des génératrices du rouleau. Dans cette hypothèse, un trajet complet d'une extrémité à l'autre du cylindre et sur sa surface périphérique prend une allure sinusoïdale.In other words, none of these recesses interferes with a neighboring obvious, and none develops over the entire periphery or width of the roll. At least two of these recesses are placed on a path symbolized by a generator. In other words, it is still possible to find a path on the outer surface of the roller avoiding the recesses and leading from one end to the other of a generator or joining the starting point of a director. This feature is important because it ensures proper cutting of the crumpled paper tape by tearing. According to one possibility, these recesses are circular, or semi-circular extended by a rectangular portion in inclined plane. The semicircular edge is arranged at the front, in the direction of rotation. More precisely, these recesses are arranged in staggered relation to generatrices of the roll. In this case, a complete path from one end to the other of the cylinder and on its peripheral surface takes a sinusoidal shape.
Dans la machine de l'invention, les deux trains de rouleaux sont commandés par deux moteurs distincts dont la vitesse de rotation est réglable et varie au cours du fonctionnement. Les deux couples de rouleaux sont donc mécaniquement distincts, puisque chacun est entraîné par un moteur spécifique. Ces derniers sont eux-mêmes alimentés et pilotés chacun de manière distincte, et leur vitesse de rotation est donc réglable indépendamment l'un de l'autre.In the machine of the invention, the two roller trains are controlled by two separate motors whose rotational speed is adjustable and varies during operation. The two pairs of rollers are therefore mechanically distinct, since each is driven by a specific motor. These are themselves powered and each driven separately, and their rotational speed is adjustable independently of one another.
De préférence, ces moteurs sont des moteurs asynchrones pilotés par des variateurs de fréquence. La variation de fréquence, ayant pour résultat immédiat une variation de vitesse de rotation du moteur, permet un choix très souple de la courbe d'accélération et de décélération des moteurs, et par conséquent des trains de rouleaux qui leur sont liés. Il est facile de choisir la vitesse de pointe, ainsi que le rapport de vitesse entre le premier et le deuxième train de rouleaux, et ainsi d'obtenir différentes qualités de froissage uniquement via la maîtrise de la vitesse de rotation des deux trains successifs.Preferably, these motors are asynchronous motors driven by frequency converters. The variation in frequency, resulting in an instantaneous variation in the rotational speed of the motor, allows a very flexible choice of the acceleration and deceleration curve of the motors, and consequently of the roller trains which are connected to them. It is easy to choose the top speed, as well as the speed ratio between the first and the second set of rollers, and thus obtain different qualities of creasing only via controlling the speed of rotation of the two successive trains.
Ces variateurs de fréquence sont couplés chacun à un programmateur qui permet de donner corps au cycle de rotation, voire de prévoir à l'avance un certain nombre de phases de fonctionnement prédéterminées. Les variateurs étant programmables à volonté, il est facile de piloter le fonctionnement de la machine de l'invention selon de multiples variantes, voire de l'adapter à l'utilisation qui en est prévue.These frequency inverters are each coupled to a programmer that allows to give body to the cycle of rotation, or to predict in advance a number of predetermined operating phases. Since the variators are programmable at will, it is easy to control the operation of the machine of the invention in a number of variants, or even to adapt it to the intended use.
Il a été indiqué auparavant qu'un étage de fronçage longitudinal de la bande précède le double train de rouleaux superposés réalisant l'entraînement et le froissage transversal.It has previously been indicated that a longitudinal reaming stage of the web precedes the double stack of superimposed rollers performing the drive and the transverse creasing.
Cet étage formant l'ondulation transversale comporte un support pour une face de la bande, constitué de tringles d'allure axiale disposées dans un même plan, et reliées à leurs extrémités distales des trains de rouleaux à une traverse en arc de cercle dont la courbure est prévue pour que les bordures de la bande convergent vers les extrémités des rouleaux.This stage forming the transverse corrugation comprises a support for one face of the strip, consisting of axially-oriented rods arranged in the same plane, and connected at their distal ends of the roller trains to a cross-member in an arc whose curvature is provided so that the edges of the band converge towards the ends of the rollers.
Pour accentuer l'amplitude des ondulations à mesure que la bande s'approche des rouleaux du premier train, les tringles sont orientées perpendiculairement à la traverse. Elles convergent alors l'une vers l'autre, ce qui augmente la hauteur des oncles à mesure que l'on s'approche du premier train de rouleaux.To accentuate the amplitude of the undulations as the band approaches the rolls of the first train, the rods are oriented perpendicular to the cross. They then converge towards each other, which increase the height of the uncles as you approach the first set of rollers.
Le fonctionnement de la machine, dans la configuration à deux moteurs contrôlant chaque train de rouleau est tel que l'avance, le froissage et le sectionnement de la bande de papier peuvent être effectués par un mécanisme à poussoir tel que lorsqu'il est dans un état, l'avance et le froissage sont mis en œuvre, temporairement ou non, le sectionnement intervenant lorsqu'il change d'état.The operation of the machine in the two-motor configuration controlling each roll train is such that the advance, creasing and cutting of the paper web can be performed by a push mechanism such as when in a state, advance and crumpling are implemented, temporarily or not, cutting intervening when it changes state.
De préférence, ce mécanisme à poussoir consiste en un interrupteur à pédale.Preferably, this push mechanism consists of a foot switch.
Autrement dit, selon une possibilité, un défilement continu est obtenu pendant l'actionnement de la pédale, réalisant un froissage produisant une certaine longueur de matelas de rembourrage. Dès lors que l'opérateur cesse d'appuyer sur la pédale, les deux moteurs freinent jusqu'à l'arrêt ou presque, puis celui qui contrôle le train de rouleaux aval redémarre et accélère brutalement, sectionnant la bande de matelas de rembourrage déjà produite.In other words, according to one possibility, a continuous scrolling is obtained during the actuation of the pedal, performing a crumpling producing a certain length of padding mattress. As soon as the operator stops pressing the pedal, both engines brake to a standstill or almost, then the one controlling the downstream roll train restarts and accelerates abruptly, cutting off the padding mat already produced. .
Du fait de l'existence de programmateurs et de la souplesse de la commande des moteurs asynchrones par variateur de fréquence, il est bien entendu possible de mettre en œuvre beaucoup d'autres modèles ou schémas de cycles de fonctionnement de la machine.Because of the existence of programmers and the flexibility of the control of frequency converter asynchronous motors, it is of course possible to implement many other models or patterns of operating cycles of the machine.
L'invention va à présent être décrite plus en détail, en référence aux figures disposées en annexe, pour lesquelles : la figure 1 est une vue en perspective des éléments principaux de l'invention ; la figure 2 en est une vue de dessus ; la figure 3 montre une vue de côté des mêmes éléments ; et la figure 4 représente un diagramme du fonctionnement d'un cycle complet selon une possibilité mise en œuvre dans la machine de l'invention.The invention will now be described in more detail with reference to the appended figures, in which: FIG. 1 is a perspective view of the main elements of the invention; Figure 2 is a view from above; Figure 3 shows a side view of the same elements; and FIG. 4 represents a diagram of the operation of a complete cycle according to a possibility implemented in the machine of the invention.
En référence à la figure 1 , le premier train est constitué des rouleaux (1) et (2) alors que le second train est constitué des rouleaux (3) et (4). La bande de papier B, qui défile dans le sens des flèches F, passe dans un premier temps dans un étage réalisant une ondulation transversale. Celle-ci est obtenue à l'aide d'une structure support (5) constituée de tringles (6, 7, 8) disposées dans un plan sensiblement horizontal, et dont les extrémités à l'opposé des trains de rouleaux sont reliées à une traverse (9) en arc de cercle orientant les bordures de la bande vers les extrémités des rouleaux (1 , 2). Les tringles (6, 7, 8) se rapprochent légèrement l'une de l'autre à mesure que l'on s'approche des trains de rouleaux (1 à 4) car elles sont perpendiculaires à la traverse (9). Les bordures de la bande B se rapprochent également l'une de l'autre à mesure du défilement. Le relâchement dans la dimension transversale est alors transformé au moyen des tringles (6, 7, 8) en ondulations.Referring to Figure 1, the first train consists of rollers (1) and (2) while the second train consists of rollers (3) and (4). The strip of paper B, which scrolls in the direction of the arrows F, passes firstly into a stage producing a transverse corrugation. This is obtained by means of a support structure (5) consisting of rods (6, 7, 8) arranged in a substantially horizontal plane, and whose ends opposite the roller trains are connected to a crossbar (9) in an arc of a circle orienting the edges of the strip towards the ends of the rollers (1, 2). The rods (6, 7, 8) are slightly closer to one another as we approach the roller trains (1 to 4) because they are perpendicular to the crossbar (9). The borders of the band B are also approaching each other as the scrolling. The relaxation in the transverse dimension is then transformed by means of the rods (6, 7, 8) into corrugations.
La bande B ainsi ondulée est ensuite entraînée par le premier train de rouleaux (1 , 2). Celui-ci est entraîné par un moteur asynchrone commandé en fréquence à une vitesse plus rapide que celle du second train de rouleaux (3,The corrugated band B is then driven by the first set of rollers (1, 2). This is driven by an asynchronous motor controlled in frequency at a speed faster than that of the second set of rollers (3,
4), pilotés par un autre moteur asynchrone également commandé en fréquence.4), controlled by another asynchronous motor also controlled in frequency.
Les rouleaux d'entrée (1 , 2) comportent une succession de portions annulaires cannelées (10) séparées par des gorges également annulaires.The input rollers (1, 2) comprise a succession of annular corrugated portions (10) separated by equally annular grooves.
Cette configuration permet d'assurer un entraînement correct de la bande B, sans écraser les plis résultant de l'ondulation transversale.This configuration makes it possible to ensure a correct drive of the band B, without crushing the folds resulting from the transverse corrugation.
En figure 2, on a représenté schématiquement la progression du changement de forme de la bande dans la dimension transversale. Un froissage dans l'autre dimension s'effectue ensuite entre les rouleaux (1 , 2) et les rouleaux (3, 4). Le résultat est schématisé en sortie de ce deuxième train, le matelassage résultant alors d'une mise en volume obtenue par la combinaison des froissages longitudinal et transversal.In Figure 2, there is shown schematically the progression of the shape change of the band in the transverse dimension. A wrinkling in the other dimension is then performed between the rollers (1, 2) and the rollers (3, 4). The result is shown schematically at the output of this second train, the quilting then resulting from an increase in volume obtained by the combination of longitudinal and transverse creases.
Le rouleau (3) comporte en l'occurrence des évidements circulaires (11 ) distincts les uns des autres, à la fois le long des génératrices et des directrices du cylindre. D'autres formes sont cependant possibles. Le rouleau (4) est un simple cylindre cannelé. Ce second train permet l'entraînement soudain de la bande pendant la phase de sectionnement.The roller (3) has in this case circular recesses (11) separate from each other, both along the generatrices and the cylinder direction. Other forms are possible, however. The roller (4) is a simple corrugated cylinder. This second train allows the sudden training of the band during the sectioning phase.
La figure 3 montre clairement la mise en volume de la bande B. Le support (5) comportant trois tringles (6 à 8) est légèrement incliné, amenant la bande progressivement dans le plan de passage entre les trains de rouleaux (1 , 2, 3, 4). Ce support (5) crée dans la bande des ondulations transversales qui donnent, en vue de côté, la surface triangulaire représentée en figure 3 en amont des rouleaux (1 , 2). La vitesse réduite des rouleaux (3, 4) aboutit ensuite à un plissage transversal tel que montré entre les deux trains de rouleaux, le gaufrage final qui en résulte étant symbolisé par la dernière portion, représentée en aval des rouleaux (3, 4).FIG. 3 clearly shows the setting in volume of the band B. The support (5) comprising three rods (6 to 8) is slightly inclined, bringing the band gradually in the plane of passage between the roll trains (1, 2, 3, 4). This support (5) creates in the strip transverse corrugations which give, in side view, the triangular surface shown in FIG. 3 upstream of the rollers (1, 2). The reduced speed of the rollers (3, 4) then leads to a transverse pleating as shown between the two roll trains, the resulting final embossing being symbolized by the last portion, shown downstream of the rollers (3, 4).
La figure 4 montre un diagramme d'un cycle complet de fonctionnement. Le temps est représenté en abscisse, et la vitesse en ordonnée. Cette dernière peut être caractérisée soit par la fréquence, dont elle dépend, soit directement par le nombre de tours minutes. La programmation des deux moteurs est faite de la manière suivante : lorsqu'on actionne la pédale, ce qui correspond au niveau 1 de celle-ci, le moteur (1 ) et le moteur (2) ont une phase d'accélération parallèle, le moteur (1 ) atteignant cependant une vitesse bien supérieure à celle du moteur (2) (le rapport est supérieur à 2). Il s'agit de la phase 1. La phase 2 représente le plateau de fonctionnement, à vitesse constante, pendant une phase de production de matelas de rembourrage. Dès lors que l'opérateur cesse d'actionner la pédale, (état 0 de la pédale) au début de la phase 3, il se produit une décélération jusqu'à l'arrêt complet ou quasiment complet des moteurs (1 , 2). Dès que cet état est atteint, en début de phase 4, le moteur (1 ) est maintenu freiné (fréquence 0) à l'arrêt alors que le moteur (2) subit une accélération brutale suivie d'une brève phase en plateau et d'une décélération également rapide. L'arrachage s'effectue pendant cette phase 4.Figure 4 shows a diagram of a complete cycle of operation. Time is represented on the abscissa, and the speed on the y-axis. The latter can be characterized either by the frequency, on which it depends, or directly by the number of revolutions minutes. The programming of the two motors is done in the following way: when the pedal is actuated, which corresponds to the level 1 of this one, the motor (1) and the motor (2) have a phase of parallel acceleration, the motor (1) however reaching a much higher speed than the engine (2) (the ratio is greater than 2). This is Phase 1. Phase 2 represents the operating platform, at constant speed, during a production phase of cushioning mat. As soon as the operator stops operating the pedal (state 0 of the pedal) at the beginning of phase 3, there is a deceleration until the complete or almost complete stop of the motors (1, 2). As soon as this state is reached, at the beginning of phase 4, the engine (1) is kept braked (frequency 0) at a standstill while the engine (2) undergoes a sudden acceleration followed by a brief plateau phase and a deceleration also fast. The uprooting takes place during this phase 4.
Les variateurs de fréquence des moteurs (1 et 2) sont programmables à volonté et il est donc possible de mettre en œuvre d'autres schémas de fonctionnement. Ainsi, pour gagner en productivité, il est possible de produire systématiquement un matelas de longueur prédéterminée, en temps masqué, et sans procéder au sectionnement. Dans cette hypothèse, les phases de fonctionnement sont alors réalisées dans l'ordre suivant : 4-1-2-3. Il y a alors toujours du matelas disponible, et l'appui par l'opérateur sur la pédale provoque d'abord le sectionnement puis la production immédiate d'une même longueur prédéterminée de matelas.The frequency inverters of the motors (1 and 2) are programmable at will and it is therefore possible to implement other operating diagrams. Thus, to gain productivity, it is possible to systematically produce a mattress of predetermined length, masked time, and without cutting. In this case, the operating phases are then performed in the following order: 4-1-2-3. There is always a mattress available, and the support by the operator on the pedal first causes the cutting and then the immediate production of the same predetermined length of mattress.
Une impulsion courte sur l'interrupteur à pied produira le sectionnement et reproduira ledit matelas de longueur préprogrammée. Il est également possible de prévoir qu'une action prolongée sur ce même interrupteur permet de rallonger le morceau déjà produit, de le couper et de reproduire un matelas à ladite longueur préprogrammée. A short pulse on the footswitch will produce sectioning and reproduce said preprogrammed length mattress. It is also possible to provide that a prolonged action on the same switch can lengthen the piece already produced, cut and reproduce a mattress at said preprogrammed length.

Claims

REVENDICATIONS
1. Machine de fabrication de matelas de rembourrage à partir d'une bande de papier par froissage en continu de la bande au moyen d'un dispositif d'entraînement / froissage constitué de deux trains de deux rouleaux superposés disposés l'un à la suite de l'autre, le premier train entraînant la bande, le second train tournant à vitesse plus réduite que le premier pour réaliser le froissage, les matelas étant ensuite obtenus par sectionnement transversal de la bande froissée, caractérisée en ce que le dispositif de sectionnement est constitué du double train de rouleaux superposés, le premier train étant maintenu à l'arrêt et bloquant la bande de papier alors que le second train subit une accélération rapide à partir de l'arrêt en vue de sectionner la bande entre les deux trains de rouleau.1. Filling mattress manufacturing machine from a paper strip by continuously creasing the strip by means of a drive / crease device consisting of two trains of two superposed rollers arranged one after the other on the other hand, the first train driving the belt, the second gear rotating at a speed slower than the first gear for crimping, the mattresses then being obtained by transverse sectioning of the crumpled belt, characterized in that the sectioning device is consisting of the double stack of superimposed rolls, the first train being held stationary and blocking the paper web while the second train is accelerated rapidly from the stop to sever the web between the two roll trains .
2. Machine de fabrication de matelas selon la revendication précédente, caractérisée en ce qu'un étage conférant une ondulation transversale à la bande précède le double train de rouleaux superposés.2. Machine for manufacturing mattresses according to the preceding claim, characterized in that a stage conferring a corrugation transverse to the web precedes the double stack of superposed rollers.
3. Machine de fabrication de matelas selon l'une des revendications précédentes, caractérisée en ce que le premier train est constitué de deux rouleaux cannelés, au moins l'un d'eux comportant des portions annulaires cannelées alternant avec des gorges périphériques, les portions cannelées en regard des deux rouleaux réalisant l'entraînement de la bande.3. mattress manufacturing machine according to one of the preceding claims, characterized in that the first train consists of two grooved rollers, at least one of them having fluted annular portions alternating with peripheral grooves, the portions grooves facing the two rollers performing the drive of the band.
4 . Machine de fabrication de matelas selon l'une quelconque des revendications précédentes, caractérisée en ce que le second train est constitué de deux rouleaux cannelés, au moins l'un comportant des évidements répartis sur l'ensemble de sa surface, distincts les uns des autres à la fois le long des génératrices et le long des directrices et de longueur inférieure à celles-ci.4. A mattress manufacturing machine according to any one of the preceding claims, characterized in that the second gear consists of two fluted rollers, at least one having recesses distributed over its entire surface, distinct from each other both along the generatrices and along the guidelines and of shorter length than these.
5. Machine de fabrication de matelas selon la revendication précédente, caractérisée en ce que les évidements sont circulaires ou semi-circulaires prolongés par une portion rectangulaire en plan incliné.5. Mattress manufacturing machine according to the preceding claim, characterized in that the recesses are circular or semi-circular extended by a rectangular portion in an inclined plane.
6. Machine de fabrication de matelas selon la revendication précédente, caractérisée en ce que les évidements sont disposés en quinconce par rapport à des génératrices du rouleau.6. mattress manufacturing machine according to the preceding claim, characterized in that the recesses are arranged staggered relative to generatrices of the roller.
7 . Machine de fabrication de matelas selon l'une quelconque des revendications précédentes, caractérisée en ce que les deux trains de rouleaux sont commandés par deux moteurs distincts dont la vitesse de rotation est réglable et varie au cours du fonctionnement. 7. A mattress manufacturing machine according to any one of the preceding claims, characterized in that the two roller trains are controlled by two separate motors whose rotational speed is adjustable and varies during operation.
8. Machine de fabrication de matelas selon la revendication précédente, caractérisée en ce que les moteurs sont des moteurs asynchrones pilotés par des variateurs de fréquence permettant le réglage de leur vitesse de rotation. 8. Mattress manufacturing machine according to the preceding claim, characterized in that the motors are asynchronous motors controlled by frequency converters for adjusting their rotational speed.
9. Machine de fabrication de matelas selon la revendication précédente, caractérisée en ce que les variateurs de fréquence sont couplés chacun à un programmateur. 9. mattress manufacturing machine according to the preceding claim, characterized in that the frequency inverters are each coupled to a programmer.
1 0 .Machine de fabrication de matelas selon l'une quelconque des revendications 2 à 9, caractérisée en ce que l'étage conférant l'ondulation transversale comporte un support pour une face de la bande, constitué de tringles d'allure axiale disposées dans un même plan, et reliées à leurs extrémités distales des trains de rouleaux à une traverse en arc de cercle dont la courbure est prévue pour que les bordures de la bande convergent vers les extrémités des rouleaux. A mattress manufacturing machine according to any one of claims 2 to 9, characterized in that the transverse corrugation-providing stage comprises a support for one side of the strip, consisting of axially-oriented rods arranged in the same plane, and connected at their distal ends of the roller trains to a crossbar in a circular arc whose curvature is provided so that the edges of the band converge towards the ends of the rollers.
1 1 . Machine de fabrication de matelas selon la revendication précédente, caractérisée en ce que les tringles sont orientées perpendiculairement à la traverse. 1 1. Mattress manufacturing machine according to the preceding claim, characterized in that the rods are oriented perpendicularly to the crossmember.
1 2 .Machine de fabrication de matelas selon l'une quelconque des revendications précédentes, caractérisée en ce que l'avance, le froissage et le sectionnement de la bande de papier sont effectués par un mécanisme électrique à poussoir tel que lorsqu'il est dans un état, l'avance et le froissage sont mis en œuvre temporairement ou non, le sectionnement intervenant lorsqu'il change d'état.A mattress manufacturing machine according to any one of the preceding claims, characterized in that the advance, creasing and sectioning of the paper web is performed by an electric push mechanism such as when in a state, the advance and the crumpling are implemented temporarily or not, the cutting intervening when it changes state.
13. Machine de fabrication de matelas selon la revendication précédente, caractérisée en ce que le mécanisme à poussoir consiste en un interrupteur à pédale. 13. Machine for manufacturing mattresses according to the preceding claim, characterized in that the push mechanism consists of a foot switch.
PCT/FR2006/001818 2005-07-25 2006-07-25 Machine for making stuffing mats WO2007012753A1 (en)

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FR0507886A FR2888831B1 (en) 2005-07-25 2005-07-25 MACHINE FOR MAKING PADDING MATTRESSES
FR0507886 2005-07-25

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WO2007012753A1 true WO2007012753A1 (en) 2007-02-01

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US7955245B2 (en) 2007-09-24 2011-06-07 Ranpak Corp. Dunnage conversion machine and method
EP2081760A4 (en) * 2006-09-14 2012-04-11 Pregis Corp System and method for crumpling paper substrates
CN103722780A (en) * 2012-10-12 2014-04-16 施托奥皮克汉斯赖兴埃克有限公司 Device for producing a cushion from paper

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US6015374A (en) * 1995-10-16 2000-01-18 Ranpak Corp. Compact cushioning conversion machine and method using pre-folded paper
US20050139627A1 (en) * 2001-07-04 2005-06-30 Yen Sun Technology Corp. Paper towel and separation device of the paper

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Publication number Priority date Publication date Assignee Title
US6015374A (en) * 1995-10-16 2000-01-18 Ranpak Corp. Compact cushioning conversion machine and method using pre-folded paper
US20050139627A1 (en) * 2001-07-04 2005-06-30 Yen Sun Technology Corp. Paper towel and separation device of the paper

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2081760A4 (en) * 2006-09-14 2012-04-11 Pregis Corp System and method for crumpling paper substrates
US7955245B2 (en) 2007-09-24 2011-06-07 Ranpak Corp. Dunnage conversion machine and method
US9669596B2 (en) 2007-09-24 2017-06-06 Ranpak Corp. Dunnage conversion machine and method
US11325340B2 (en) 2007-09-24 2022-05-10 Ranpak Corp. Dunnage conversion machine and method
CN103722780A (en) * 2012-10-12 2014-04-16 施托奥皮克汉斯赖兴埃克有限公司 Device for producing a cushion from paper

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FR2888831A1 (en) 2007-01-26

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