EP0419382A1 - Device for bringing into position an article such as a sheet - Google Patents

Device for bringing into position an article such as a sheet Download PDF

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Publication number
EP0419382A1
EP0419382A1 EP90420410A EP90420410A EP0419382A1 EP 0419382 A1 EP0419382 A1 EP 0419382A1 EP 90420410 A EP90420410 A EP 90420410A EP 90420410 A EP90420410 A EP 90420410A EP 0419382 A1 EP0419382 A1 EP 0419382A1
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EP
European Patent Office
Prior art keywords
sheet
rollers
roller
edge
detectors
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Granted
Application number
EP90420410A
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German (de)
French (fr)
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EP0419382B1 (en
Inventor
Michel Baboz
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JEAN MICHEL SA
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JEAN MICHEL SA
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Publication of EP0419382A1 publication Critical patent/EP0419382A1/en
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Publication of EP0419382B1 publication Critical patent/EP0419382B1/en
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F67/00—Details of ironing machines provided for in groups D06F61/00, D06F63/00, or D06F65/00
    • D06F67/04—Arrangements for feeding or spreading the linen

Definitions

  • the present invention relates to a machine for positioning a product in the form of a flexible sheet.
  • Industrial processing of sheet-shaped products involves providing, between the different processing units, one or more devices making it possible to position the product correctly so that it can automatically switch from one processing unit to another.
  • This type of device rather rudimentary, is slow to use and requires the presence of one or two operators.
  • the motors act to cause the tube to twist until the edge of the sheet is brought to the level of the photocells .
  • This device has the drawback of being complex and therefore expensive to produce, since it requires the use of two drive motors and the production of a specific tube.
  • the present invention aims to remedy this drawback by providing a device for production and simple use and of moderate cost.
  • this device is of the known prior type comprising at least one clamp for gripping the sheet and engaging it astride one or more horizontal and parallel rollers, means for causing the opening of the clamp when the two lateral edges of the sheet deposited on the roll (s) are equidistant from the ends of the roll (s), as well as presence detectors of the edge of the sheet aligned horizontally at the desired height for positioning the anterior edge of the sheet, and which control the action of the roller (s) for the correct positioning of this front edge, and in which each roller is associated with a motor intended to drive it in rotation in one direction or the other depending on the signal transmitted by the detectors presence sensitive to the position of the edge of the sheet.
  • the device comprises means making it possible to tilt the roller (s) relative to the horizontal by tilting about a horizontal axis perpendicular to their axis of rotation and passing through the center of the latter, one presence detectors being arranged in line with the tilt axis, so as to be sensitized by the central point of the anterior edge of the sheet, and to detect the correct positioning in level with this central point to stop the action of each motor for rotating the rollers, while the other detectors, sensitized by the anterior edge of the sheet on either side of its central point, are intended to control the tilting of the roller (s), until detection by them of the correct positioning of this anterior edge.
  • the motor (s) drive the roller (s) in rotation until bringing the central point from the front edge of the sheet at the level of the detector arranged in line with the pivot axis.
  • the edge of the sheet acts on the detector which stops the rotation of the roller (s).
  • the other detectors actuate the tilting means of the latter so that the edge of the sheet is gradually brought into the desired horizontal position. The inclination stops when the edge is at the level of the detectors.
  • the sheet is then taken over by a processing unit.
  • this device comprises two parallel rollers around which are engaged several endless belts, perpendicular to their longitudinal axes.
  • each roller is constituted by two coaxial rollers of identical lengths, connected to each other by a tubular piece or sleeve forming a bearing, which is crossed diametrically by the axis of tilting of the rollers.
  • the means actuating the inclination of the rollers is constituted by a jack whose body is fixed to the frame of the device, and whose end of the piston rod is connected to one of the ends of the rollers.
  • the presence detectors of the front edge of the sheet are constituted by photoelectric cells.
  • this device comprises two clamps carried by a motorized endless belt, which are located opposite one another. This improves the speed of the machine.
  • this device comprises an inclined ramp facilitating the engagement of the sheet on the rollers.
  • Figures 1 and 4 show, from different angles, the device 1 which comprises a frame 2 and two parallel and horizontal rollers 3, each constituted by two coaxial rollers 3a and 3b of identical length, connected to each other by a tubular sleeve 4 forming a bearing.
  • the sleeve 4 is crossed by a horizontal axis 5 perpendicular to the axis of rotation of the rollers 3, and passing through its center.
  • the ends of the axis 5 are engaged in bores made in two uprights 7, forming a hinge bearing, carried by a spar 2a of the frame 2.
  • the rollers 3 are connected, by one of their ends, to the rod piston 8a of a jack 8 whose body 8b is fixed to the frame 2.
  • the frame 2 carries photoelectric cells 10 aligned horizontally, one of which 10a is located in line with the axis 5.
  • the cell 10a controls, by appropriate means (not shown) the action of motors (not shown) for driving the rollers 3 in rotation, while the photoelectric cells 10 control, by appropriate means, also not shown, the action of the jack 8.
  • the device 1 also comprises two clamps 11 secured to a motorized endless belt 12, which is guided by rollers 13, the clamps 11 being located opposite one another.
  • the device 1 is provided with an inclined ramp 14 facilitating the handling of a sheet 15, as well as a pusher 16 movable in translation, provided for transferring the sheet 15 from the device 1 to a processing unit 17 of the sheet 15, which is shown in dashed lines in FIG. 4.
  • the clamps 11 are intended to grip a part of one of the side edges 15a of the sheet 15, and to engage the latter astride the rollers 3, so that two edges 15b and 15c of the sheet 15 hang on either side of the rollers 3.
  • the device 1 comprises a photoelectric cell, fixed on the side of the ramp 14, and a sensor connected to a computer (not shown), which measure the length of the sheet 15 in order to cause the opening of the clamp 11 having gripped the sheet 15, and therefore the deposition of the sheet 15 on the rollers 3, when the two lateral edges 15a of the sheet 15 are at equal distance roller ends 3.
  • the motors After depositing the sheet 15, the motors will drive the rollers 3 in rotation to gradually bring the central point of the ante edge laughing 15b of the sheet 15 at the level of the photocell 10a.
  • the rotation of the rollers 3 is interrupted when the edge 15b is at the level of the cell 10a (FIG. 2), and the cells 10 then actuate the jack 8, which causes the tilting of the rollers 3 relative to the horizontal. around the axis 5 until the edge 15b of the sheet 15 coincides with the alignment of the cells 10 (FIG. 3).
  • This alignment corresponds to the correct horizontal positioning at the edge 15b of the sheet 15.
  • the pusher 16 and the rollers 3 then act to transfer the sheet 15 to the engagement system of the processing unit 17.
  • the rollers 3 are brought back in a horizontal position for the engagement on them of another sheet 15.
  • the presence of two clamps 11 makes it possible to improve the performance of the device 1.

Abstract

According to the invention, the device 1 comprises means (5, 7, 8) making it possible to incline the roller or rollers (3) relative to the horizontal by tilting about a horizontal axis (5) perpendicular to their axis of rotation and passing through the centre of the latter, one (10a) of the presence detectors (10) being arranged in line with the tilting axis (5), so as to be sensitised by the central point of the leading edge (15b) of the sheet (15), and making it possible to detect the correct level positioning of this central point so as to stop the action of each motor driving the rollers (3) in rotation, whilst the other detectors (10), sensitised by the leading edge (15b) of the sheet (15) on either side of its central point, are intended for commanding the tilting of the roller or rollers (3) until they detect the correct positioning of this leading edge (15b). The invention is used particularly in the laundry sector. <IMAGE>

Description

La présente invention concerne une machine de positionnement d'un produit en forme de feuille souple.The present invention relates to a machine for positioning a product in the form of a flexible sheet.

Le traitement industriel de produits en forme de feuille impli­que de prévoir, entre les différentes unités de traitement, un ou plusieurs dispositifs permettant de positionner le produit de manière correcte pour qu'il puisse passer automatiquement d'une unité de traitement à une autre.Industrial processing of sheet-shaped products involves providing, between the different processing units, one or more devices making it possible to position the product correctly so that it can automatically switch from one processing unit to another.

Dans le domaine plus particulier de la blanchisserie, pour qu'une pièce de linge, telle qu'un drap, puisse passer dans une unité d'éti­rage, de pliage ou de repassage, il faut que le bord par lequel elle y est introduite se présente perpendiculairement à son sens d'engagement dans l'unité.In the more specific field of laundry, for a piece of linen, such as a sheet, to pass into a stretching, folding or ironing unit, the edge by which it is introduced there must present perpendicular to its direction of engagement in the unit.

Pour réaliser ce positionnement, on connaît de saisir la pièce de linge par au moins l'un de ses coins au moyen d'au moins une pince, et de la maintenir tendue tout en assurant son déplacement transversal pour l'amener devant le système d'engagement de l'unité. Le maintien de la pièce pendant le déplacement de la ou des pinces est très difficile du fait de son poids.To achieve this positioning, it is known to grasp the piece of laundry by at least one of its corners by means of at least one clamp, and to keep it taut while ensuring its transverse movement to bring it before the system of commitment to unity. Maintaining the part during the movement of the clamp (s) is very difficult because of its weight.

Il est aussi connu d'employer des dispositifs comportant un ou plusieurs rouleaux horizontaux et parallèles et d'engager une pièce de linge, telle qu'un drap, à cheval sur le ou les rouleaux, dont la rotation, actionnée manuellement par un opérateur, permet d'amener dans une position horizontale les bords du drap qui pendent de part et d'autre du ou des rouleaux. Grâce à ce positionnement, le drap se présentera de manière correcte au système d'engagement de l'unité de traitement.It is also known to employ devices comprising one or more horizontal and parallel rollers and to engage a piece of linen, such as a sheet, straddling the roller or rollers, the rotation of which, manually actuated by an operator, allows the edges of the sheet which hang on either side of the roller (s) to be brought into a horizontal position. Thanks to this positioning, the sheet will present itself correctly to the engagement system of the processing unit.

Ce type de dispositif, plutôt rudimentaire, est lent d'utilisation et nécessite la présence d'un ou deux opérateurs.This type of device, rather rudimentary, is slow to use and requires the presence of one or two operators.

Pour remédier a ces inconvénients, il a été propose, dans la demande de brevet européen N° 0 266 820, un dispositif dans lequel le ou les rouleaux précités sont remplacés par un tube constitué par l'enrou­lement en spirale d'une bande recouverte d'un matériau flexible. Chaque extrémité du tube est solidaire en rotation d'un tourillon coaxial au tube et relié à un moteur d'entraînement en rotation commandé par des cellules photo-électriques alignées horizontalement à la hauteur désirée de position­nement du bord de la feuille. Après que l'un des bords de la feuille ait été saisi par une pince mobile, et que la feuille ait été déposée par la pince sur le tube de manière à ce que ses bords latéraux soient à égale distance des extrémités du tube, les moteurs agissent afin de provoquer la torsion du tube jusqu'à ce que le bord de la feuille soit amené au niveau des cellules photo-électriques.To remedy these drawbacks, it has been proposed in European patent application No. 0 266 820, a device in which the aforementioned roller or rollers are replaced by a tube formed by the spiral winding of a strip covered with '' a flexible material. Each end of the tube is integral in rotation with a pin coaxial with the tube and connected to a rotary drive motor controlled by photoelectric cells aligned horizontally at the desired height of positioning of the edge of the sheet. After one of the edges of the sheet has been gripped by a movable clamp, and the sheet has been deposited by the clamp on the tube so that its lateral edges are equidistant from the ends of the tube, the motors act to cause the tube to twist until the edge of the sheet is brought to the level of the photocells .

Ce dispositif présente l'inconvénient d'être complexe et donc cher à réaliser, puisqu'il nécessite l'emploi de deux moteurs d'entraînement et la réalisation d'un tube spécifique.This device has the drawback of being complex and therefore expensive to produce, since it requires the use of two drive motors and the production of a specific tube.

La présente invention vise à remédier à cet inconvénient en fournissant un dispositif de réalisation et d'utilisation simple et d'un coût modéré.The present invention aims to remedy this drawback by providing a device for production and simple use and of moderate cost.

A cette fin, ce dispositif est du type antérieur connu compor­tant au moins une pince permettant de saisir la feuille et de l'engager à cheval sur un ou plusieurs rouleaux horizontaux et parallèles, des moyens pour provoquer l'ouverture de la pince lorsque les deux bords latéraux de la feuille déposée sur le ou les rouleaux sont à égale distance des extrémités du ou des rouleaux, ainsi que des détecteurs de présence du bord de la feuille alignés horizontalement à la hauteur désirée de position­nement du bord antérieur de la feuille, et qui commandent l'action du ou des rouleaux en vue du positionnement correct de ce bord antérieur, et dans lequel à chaque rouleau est associé un moteur destine a son entraî­nement en rotation dans un sens ou dans l'autre en fonction du signal transmis par les détecteurs de présence sensibles à la position du bord de la feuille.To this end, this device is of the known prior type comprising at least one clamp for gripping the sheet and engaging it astride one or more horizontal and parallel rollers, means for causing the opening of the clamp when the two lateral edges of the sheet deposited on the roll (s) are equidistant from the ends of the roll (s), as well as presence detectors of the edge of the sheet aligned horizontally at the desired height for positioning the anterior edge of the sheet, and which control the action of the roller (s) for the correct positioning of this front edge, and in which each roller is associated with a motor intended to drive it in rotation in one direction or the other depending on the signal transmitted by the detectors presence sensitive to the position of the edge of the sheet.

Selon l'invention, le dispositif comprend des moyens permettant d'incliner par rapport à l'horizontale le ou les rouleaux par basculement autour d'un axe horizontal perpendiculaire à leur axe de rotation et passant par le centre de ce dernier, l'un des détecteurs de présence étant disposé au droit de l'axe de basculement, de manière à être sensibilisé par le point central du bord antérieur de la feuille, et de détecter le position­nement correct en niveau de ce point central pour arrêter l'action de chaque moteur d'entraînement en rotation des rouleaux, tandis que les autres détecteurs, sensibilisés par le bord antérieur de la feuille de part et d'autre de son point central, sont destinés à commander le basculement du ou des rouleaux, jusqu'à détection par eux du positionnement correct de ce bord antérieur.According to the invention, the device comprises means making it possible to tilt the roller (s) relative to the horizontal by tilting about a horizontal axis perpendicular to their axis of rotation and passing through the center of the latter, one presence detectors being arranged in line with the tilt axis, so as to be sensitized by the central point of the anterior edge of the sheet, and to detect the correct positioning in level with this central point to stop the action of each motor for rotating the rollers, while the other detectors, sensitized by the anterior edge of the sheet on either side of its central point, are intended to control the tilting of the roller (s), until detection by them of the correct positioning of this anterior edge.

Après engagement et dépôt de la feuille, le ou les moteurs entraînent le ou les rouleaux en rotation jusqu'à amener le point central du bord antérieur de la feuille au niveau du détecteur disposé au droit de l'axe de pivotement. Le bord de la feuille agit sur le détecteur qui stoppe la rotation du ou des rouleaux. Les autres détecteurs actionnent les moyens de basculement de ces derniers afin que le bord de la feuille soit progressivement amené dans la position horizontale désirée. L'incli­naison s'interrompt lorsque le bord est au niveau des détecteurs. Ainsi positionnée, la feuille est ensuite prise en charge par une unité de traite­ment.After engagement and deposit of the sheet, the motor (s) drive the roller (s) in rotation until bringing the central point from the front edge of the sheet at the level of the detector arranged in line with the pivot axis. The edge of the sheet acts on the detector which stops the rotation of the roller (s). The other detectors actuate the tilting means of the latter so that the edge of the sheet is gradually brought into the desired horizontal position. The inclination stops when the edge is at the level of the detectors. Thus positioned, the sheet is then taken over by a processing unit.

Selon une forme de réalisation préférée, ce dispositif comprend deux rouleaux parallèles autour desquels sont engagées plusieurs bandes sans fin, perpendiculairement à leurs axes longitudinaux.According to a preferred embodiment, this device comprises two parallel rollers around which are engaged several endless belts, perpendicular to their longitudinal axes.

Ces bandes empêchent le glissement de la feuille sur les rouleaux.These strips prevent the sheet from sliding on the rollers.

De préférence, chaque rouleau est constitué par deux rouleaux coaxiaux de longueurs identiques, reliés l'un à l'autre par une pièce tubu­laire ou manchon formant palier, qui est traversée diamétralement par l'axe de basculement des rouleaux.Preferably, each roller is constituted by two coaxial rollers of identical lengths, connected to each other by a tubular piece or sleeve forming a bearing, which is crossed diametrically by the axis of tilting of the rollers.

Avantageusement, le moyen actionnant l'inclinaison des rou­leaux est constitué par un vérin dont le corps est fixé au bâti du dispositif, et dont l'extrémité de la tige de piston est reliée à l'une des extrémités des rouleaux.Advantageously, the means actuating the inclination of the rollers is constituted by a jack whose body is fixed to the frame of the device, and whose end of the piston rod is connected to one of the ends of the rollers.

Selon une forme de réalisation préférée de l'invention, les détecteurs de presence du bord antérieur de la feuille sont constitués par des cellules photo-électriques.According to a preferred embodiment of the invention, the presence detectors of the front edge of the sheet are constituted by photoelectric cells.

Selon une caractéristique, ce dispositif comprend deux pinces portées par une bande sans fin motorisée, qui sont situées à l'opposé l'une de l'autre. Ceci améliore la cadence de la machine.According to one characteristic, this device comprises two clamps carried by a motorized endless belt, which are located opposite one another. This improves the speed of the machine.

Selon une autre caractéristique, ce dispositif comprend une rampe inclinée facilitant l'engagement de la feuille sur les rouleaux.According to another characteristic, this device comprises an inclined ramp facilitating the engagement of the sheet on the rollers.

De toute façon, l'invention sera bien comprise à l'aide de la description qui suit, en référence au dessin schématique annexé repré­sentant, à titre d'exemple non limitatif, une forme de réalisation préférée du dispositif selon l'invention :

  • Figures 1 à 3 en sont des vues de côté au cours de trois phases de fonctionnement différentes ;
  • Figure 4 en est une vue de face.
In any case, the invention will be clearly understood with the aid of the description which follows, with reference to the appended diagrammatic drawing representing, by way of nonlimiting example, a preferred embodiment of the device according to the invention:
  • Figures 1 to 3 are side views during three different operating phases;
  • Figure 4 is a front view.

Les figures 1 et 4 représentent, sous différents angles, le dispositif 1 qui comprend un bâti 2 et deux rouleaux parallèles et horizon­taux 3, constitués chacun par deux rouleaux coaxiaux 3a et 3b de longueur identique, reliés l'un à l'autre par un manchon tubulaire 4 formant palier. Le manchon 4 est traversé par un axe horizontal 5 perpendiculaire à l'axe de rotation des rouleaux 3, et passant par son centre. Les extrémités de l'axe 5 sont engagées dans des alésages ménagés dans deux montants 7, formant palier d'articulation, portés par un longeron 2a du bâti 2. Les rouleaux 3 sont reliés, par l'une de leurs extrémités, à la tige de piston 8a d'un vérin 8 dont le corps 8b est fixé au bâti 2.Figures 1 and 4 show, from different angles, the device 1 which comprises a frame 2 and two parallel and horizontal rollers 3, each constituted by two coaxial rollers 3a and 3b of identical length, connected to each other by a tubular sleeve 4 forming a bearing. The sleeve 4 is crossed by a horizontal axis 5 perpendicular to the axis of rotation of the rollers 3, and passing through its center. The ends of the axis 5 are engaged in bores made in two uprights 7, forming a hinge bearing, carried by a spar 2a of the frame 2. The rollers 3 are connected, by one of their ends, to the rod piston 8a of a jack 8 whose body 8b is fixed to the frame 2.

Plusieurs bandes sans fin 9 sont engagées autour des rouleaux 3 perpendiculairement à leur axe de rotation.Several endless belts 9 are engaged around the rollers 3 perpendicular to their axis of rotation.

Le bâti 2 porte des cellules photo-électriques 10 alignées horizontalement, dont l'une 10a est située au droit de l'axe 5. La cellule 10a commande, par des moyens appropriés (non représentés) l'action de moteurs (non représentés) d'entraînement en rotation des rouleaux 3, alors que les cellules photo-électriques 10 commandent, par des moyens appropriés, également non représentés, l'action du vérin 8.The frame 2 carries photoelectric cells 10 aligned horizontally, one of which 10a is located in line with the axis 5. The cell 10a controls, by appropriate means (not shown) the action of motors (not shown) for driving the rollers 3 in rotation, while the photoelectric cells 10 control, by appropriate means, also not shown, the action of the jack 8.

Le dispositif 1 comprend aussi deux pinces 11 solidaires d'une bande sans fin motorisée 12, qui est guidée par des galets 13, les pinces 11 étant situées à l'opposé l'une de l'autre.The device 1 also comprises two clamps 11 secured to a motorized endless belt 12, which is guided by rollers 13, the clamps 11 being located opposite one another.

De plus, le dispositif 1 est muni d'une rampe inclinée 14 facilitant la prise en charge d'un drap 15, ainsi qu'un poussoir 16 déplaçable en translation, prévu pour transférer le drap 15 du dispositif 1 vers une unité de traitement 17 du drap 15, qui est représentée en traits mixtes sur la figure 4.In addition, the device 1 is provided with an inclined ramp 14 facilitating the handling of a sheet 15, as well as a pusher 16 movable in translation, provided for transferring the sheet 15 from the device 1 to a processing unit 17 of the sheet 15, which is shown in dashed lines in FIG. 4.

Comme le montrent les figures 1,2 et 4, les pinces 11 sont destinées a saisir une partie de l'un des bords latéraux 15a du drap 15, et à engager ce dernier à cheval sur les rouleaux 3, de manière a ce que deux des bords 15b et 15c du drap 15 pendent de part et d'autre des rou­leaux 3. Le dispositif 1 comprend une cellule photo-électrique, fixée du côté de la rampe 14, et un capteur relié à un calculateur (non représenté), qui opèrent une mesure de la longueur du drap 15 afin de provoquer l'ouver­ture de la pince 11 ayant saisi le drap 15, et donc le dépôt du drap 15 sur les rouleaux 3, lorsque les deux bords latéraux 15a du drap 15 sont à égale distance des extrémités des rouleaux 3.As shown in Figures 1,2 and 4, the clamps 11 are intended to grip a part of one of the side edges 15a of the sheet 15, and to engage the latter astride the rollers 3, so that two edges 15b and 15c of the sheet 15 hang on either side of the rollers 3. The device 1 comprises a photoelectric cell, fixed on the side of the ramp 14, and a sensor connected to a computer (not shown), which measure the length of the sheet 15 in order to cause the opening of the clamp 11 having gripped the sheet 15, and therefore the deposition of the sheet 15 on the rollers 3, when the two lateral edges 15a of the sheet 15 are at equal distance roller ends 3.

Après dépôt du drap 15, les moteurs vont entraîner les rouleaux 3 en rotation pour amener progressivement le point central du bord anté­ rieur 15b du drap 15 au niveau de la cellule photo-électrique 10a. La rotation des rouleaux 3 s'interrompt lorsque le bord 15b est au niveau de la cellule 10a (figure 2), et les cellules 10 actionnent ensuite le vérin 8, qui provoque l'inclinaison par rapport à l'horizontale des rouleaux 3 par basculement autour de l'axe 5 jusqu'à ce que le bord 15b du drap 15 coïncide avec l'alignement des cellules 10 (figure 3). Cet alignement correspond au positionnement horizontal correct en niveau du bord 15b du drap 15. Le poussoir 16 ainsi que les rouleaux 3 agissent ensuite pour transférer le drap 15 vers le système d'engagement de l'unité de traitement 17. Les rouleaux 3 sont ramenes en position horizontale pour l'engagement sur eux d'un autre drap 15. La présence de deux pinces 11 permet d'amé­liorer le rendement du dispositif 1.After depositing the sheet 15, the motors will drive the rollers 3 in rotation to gradually bring the central point of the ante edge laughing 15b of the sheet 15 at the level of the photocell 10a. The rotation of the rollers 3 is interrupted when the edge 15b is at the level of the cell 10a (FIG. 2), and the cells 10 then actuate the jack 8, which causes the tilting of the rollers 3 relative to the horizontal. around the axis 5 until the edge 15b of the sheet 15 coincides with the alignment of the cells 10 (FIG. 3). This alignment corresponds to the correct horizontal positioning at the edge 15b of the sheet 15. The pusher 16 and the rollers 3 then act to transfer the sheet 15 to the engagement system of the processing unit 17. The rollers 3 are brought back in a horizontal position for the engagement on them of another sheet 15. The presence of two clamps 11 makes it possible to improve the performance of the device 1.

Claims (7)

1 - Dispositif de positionnement d'un produit en forme de feuille souple, qui est du type comportant au moins une pince permettant de saisir la feuille et de l'engager à cheval sur un ou plusieurs rouleaux horizontaux et parallèles, des moyens pour provoquer l'ouverture de la pince lorsque les deux bords latéraux de la feuille déposée sur le ou les rouleaux sont à égale distance des extrémités du ou des rouleaux, ainsi que des détecteurs de présence du bord de la feuille alignés horizonta­lement à la hauteur désirée de positionnement du bord antérieur de la feuille, et qui commandent l'action du ou des rouleaux en vue du position­nement correct de ce bord antérieur, et dans lequel à chaque rouleau est associé un moteur destiné à son entraînement en rotation dans un sens ou dans l'autre en fonction du signal transmis par les détecteurs de présence sensibles à la position du bord de la feuille, caractérisé en ce qu'il comprend des moyens (5,7,8) permettant d'incliner par rapport à l'horizontale le ou les rouleaux (3) par basculement autour d'un axe (5) horizontal perpendiculaire à leur axe de rotation et passant par le centre de ce dernier, l'un (10a) des détecteurs de présence (10) étant disposé ai droit de l'axe (5) de basculement, de manière à être sensibilisé par le point central du bord antérieur (15b) de la feuille (15), et de détecter le positionnement correct en niveau de ce point central pour arrêter l'ac­tion de chaque moteur d'entraînement en rotation des rouleaux (3), tandis que les autres détecteurs (10), sensibilisés par le bord antérieur (15b) de la feuille (15) de part et d'autre de son point central, sont destinés a commander le basculement du ou des rouleaux (3), jusqu'à détection par eux du positionnement correct de ce bord antérieur (15b). 1 - Device for positioning a product in the form of a flexible sheet, which is of the type comprising at least one clamp for gripping the sheet and engaging it astride one or more horizontal and parallel rollers, means for causing the opening of the clamp when the two lateral edges of the sheet deposited on the roller (s) are equidistant from the ends of the roller (s), as well as the presence detectors of the edge of the sheet aligned horizontally at the desired height of positioning of the front edge of the sheet, and which control the action of the roller (s) for the correct positioning of this front edge, and in which each roller is associated with a motor intended to drive it in rotation in one direction or the other according to the signal transmitted by the presence detectors sensitive to the position of the edge of the sheet, characterized in that it comprises means (5,7,8) making it possible to include iner with respect to the horizontal one or more rollers (3) by tilting around a horizontal axis (5) perpendicular to their axis of rotation and passing through the center of the latter, one (10a) of presence detectors (10) being disposed on the right of the pivot axis (5), so as to be sensitized by the central point of the anterior edge (15b) of the sheet (15), and to detect the correct positioning in level with this point central to stop the action of each roller drive motor (3), while the other detectors (10), sensitized by the front edge (15b) of the sheet (15) on either side of its central point, are intended to control the tilting of the roller (s) (3), until detection by them of the correct positioning of this front edge (15b). 2 - Dispositif selon la revendication 1, caractérisé en ce qu'il comprend deux rouleaux (3) parallèles autour desquels sont engagées plusieurs bandes sans fin (9), perpendiculairement à leurs axes longitudinaux. 2 - Device according to claim 1, characterized in that it comprises two rollers (3) parallel around which are engaged several endless bands (9), perpendicular to their longitudinal axes. 3 - Dispositif selon la revendication 2, caractérisé en ce que chaque rouleau (3) est constitué par deux rouleaux coaxiaux (3a,3b) de longueurs identiques, reliés l'un à l'autre par une pièce tubulaire ou manchon (4) formant palier, qui est traversée diamétralement par l'axe de basculement (5) des rouleaux (3). 3 - Device according to claim 2, characterized in that each roller (3) consists of two coaxial rollers (3a, 3b) of identical lengths, connected to each other by a tubular part or sleeve (4) forming bearing, which is crossed diametrically by the tilting axis (5) of the rollers (3). 4 - Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que le moyen actionnant l'inclinaison des rouleaux (3) est constitué par un vérin (8) dont le corps (8b) est fixé au bâti (2) du dispositif (1), et dont l'autre extrémité de la tige de piston (8a) est reliée à l'une des extrémités des rouleaux (3). 4 - Device according to one of claims 1 to 3, characterized in that the means actuating the inclination of the rollers (3) consists of a jack (8) whose body (8b) is fixed to the frame (2) of the device (1), and the other end of the piston rod (8a) of which is connected to one of the ends of the rollers (3). 5 - Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que les détecteurs de présence du bord antérieur (15b) de la feuille (15) sont constitués par des cellules photo-électriques (10). 5 - Device according to one of claims 1 to 4, characterized in that the detectors of presence of the front edge (15b) of the sheet (15) are constituted by photoelectric cells (10). 6 - Dispositif selon l'une des revendications 1 à 5, caractérisé en ce qu'il comprend deux pinces (11) portées par une bande sans fin moto­risée (12), qui sont situées à l'opposé l'une de l'autre. 6 - Device according to one of claims 1 to 5, characterized in that it comprises two clamps (11) carried by a motorized endless belt (12), which are located opposite one another . 7 - Dispositif selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'il comprend une rampe inclinée (14) facilitant l'engagement de la feuille (15) sur les rouleaux (3). 7 - Device according to any one of claims 1 to 6, characterized in that it comprises an inclined ramp (14) facilitating the engagement of the sheet (15) on the rollers (3).
EP90420410A 1989-09-19 1990-09-18 Device for bringing into position an article such as a sheet Expired - Lifetime EP0419382B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8912610A FR2652095B1 (en) 1989-09-19 1989-09-19 DEVICE FOR POSITIONING A PRODUCT IN THE FORM OF FLEXIBLE SHEET.
FR8912610 1989-09-19

Publications (2)

Publication Number Publication Date
EP0419382A1 true EP0419382A1 (en) 1991-03-27
EP0419382B1 EP0419382B1 (en) 1995-02-15

Family

ID=9385838

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90420410A Expired - Lifetime EP0419382B1 (en) 1989-09-19 1990-09-18 Device for bringing into position an article such as a sheet

Country Status (7)

Country Link
EP (1) EP0419382B1 (en)
AT (1) ATE118565T1 (en)
DE (1) DE69016902T2 (en)
DK (1) DK0419382T3 (en)
ES (1) ES2068367T3 (en)
FR (1) FR2652095B1 (en)
GR (1) GR3015442T3 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0666359A1 (en) * 1994-02-08 1995-08-09 EJNAR JENSEN &amp; SON MASKINFABRIK A/S A method and an apparatus for feeding a laundry article to a laundry processing apparatus
EP0666360A1 (en) * 1994-02-08 1995-08-09 EJNAR JENSEN &amp; SON MASKINFABRIK A/S A method and an apparatus for feeding a laundry article to a laundry processing apparatus
EP0679757A1 (en) * 1994-04-28 1995-11-02 EJNAR JENSEN &amp; SON A/S A device for inserting laundry articles into a feeder
EP0679755A1 (en) * 1994-04-28 1995-11-02 EJNAR JENSEN &amp; SON A/S A method for feeding laundry articles to a laundry processing apparatus and an apparatus for performing the method
US5606811A (en) * 1994-04-28 1997-03-04 Ejnar Jensen & S.o slashed.n A/S Device with spreader rollers for inserting laundry articles into a feeder
WO2017060226A1 (en) * 2015-10-09 2017-04-13 Jensen Denmark A/S A device and a method for reorienting/orienting and alignment of cloth

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5430915A (en) * 1992-04-20 1995-07-11 Mitsubishi Jukogyo Kabushiki Kaisha Apparatus for spreading rectangular cloth pieces
DK0573810T3 (en) * 1992-06-04 1997-09-22 Mitsubishi Heavy Ind Ltd Carrier to carry and carry linen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL92494C (en) * 1900-01-01
EP0016341A1 (en) * 1979-02-19 1980-10-01 Andreas Stichnoth Device for feeding washed roll-towels into an ironing machine
EP0266820A2 (en) * 1986-10-31 1988-05-11 "WERKHUIZEN LAPAUW" naamloze vennootschap Bed sheet feeding machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL92494C (en) * 1900-01-01
EP0016341A1 (en) * 1979-02-19 1980-10-01 Andreas Stichnoth Device for feeding washed roll-towels into an ironing machine
EP0266820A2 (en) * 1986-10-31 1988-05-11 "WERKHUIZEN LAPAUW" naamloze vennootschap Bed sheet feeding machine

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0666359A1 (en) * 1994-02-08 1995-08-09 EJNAR JENSEN &amp; SON MASKINFABRIK A/S A method and an apparatus for feeding a laundry article to a laundry processing apparatus
EP0666360A1 (en) * 1994-02-08 1995-08-09 EJNAR JENSEN &amp; SON MASKINFABRIK A/S A method and an apparatus for feeding a laundry article to a laundry processing apparatus
US5546684A (en) * 1994-02-08 1996-08-20 Ejnar Jensen & Son A/S Method and an apparatus for feeding a laundry article to a laundry processing apparatus
US5595467A (en) * 1994-02-08 1997-01-21 Ejnar Jensen & Son A/S Method and an apparatus for feeding a laundry article to a laundry processing apparatus
EP0679757A1 (en) * 1994-04-28 1995-11-02 EJNAR JENSEN &amp; SON A/S A device for inserting laundry articles into a feeder
EP0679755A1 (en) * 1994-04-28 1995-11-02 EJNAR JENSEN &amp; SON A/S A method for feeding laundry articles to a laundry processing apparatus and an apparatus for performing the method
US5606812A (en) * 1994-04-28 1997-03-04 Ejnar Jensen & S.o slashed.n A/S Device for inserting laundry articles into a feeder
US5606811A (en) * 1994-04-28 1997-03-04 Ejnar Jensen & S.o slashed.n A/S Device with spreader rollers for inserting laundry articles into a feeder
US5611159A (en) * 1994-04-28 1997-03-18 Ejnar Jensen & S.o slashed.n A/S Method and apparatus for feeding laundry articles to a laundry processing apparatus
WO2017060226A1 (en) * 2015-10-09 2017-04-13 Jensen Denmark A/S A device and a method for reorienting/orienting and alignment of cloth

Also Published As

Publication number Publication date
FR2652095A1 (en) 1991-03-22
DE69016902D1 (en) 1995-03-23
DK0419382T3 (en) 1995-05-22
FR2652095B1 (en) 1991-11-29
EP0419382B1 (en) 1995-02-15
ES2068367T3 (en) 1995-04-16
ATE118565T1 (en) 1995-03-15
DE69016902T2 (en) 1995-06-08
GR3015442T3 (en) 1995-06-30

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