EP0033710A2 - Device for unwinding, advancing and tensioning paper - Google Patents

Device for unwinding, advancing and tensioning paper Download PDF

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Publication number
EP0033710A2
EP0033710A2 EP81450002A EP81450002A EP0033710A2 EP 0033710 A2 EP0033710 A2 EP 0033710A2 EP 81450002 A EP81450002 A EP 81450002A EP 81450002 A EP81450002 A EP 81450002A EP 0033710 A2 EP0033710 A2 EP 0033710A2
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EP
European Patent Office
Prior art keywords
paper
unwinding
sheet
advancing
tensioning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP81450002A
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German (de)
French (fr)
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EP0033710A3 (en
Inventor
Jean Etcheparre
Bernard Etcheparre
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lectra SA
Original Assignee
Lectra Systemes SA
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 Lectra Systemes SA filed Critical Lectra Systemes SA
Publication of EP0033710A2 publication Critical patent/EP0033710A2/en
Publication of EP0033710A3 publication Critical patent/EP0033710A3/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D19/00—Movable-strip writing or reading apparatus

Definitions

  • the present invention relates to a device for unwinding, advancing and tensioning a sheet of paper adjacent to a table provided with tracing instruments for example.
  • Various devices which allow a sheet of paper to be unrolled and advanced in front of a table provided with tracing instruments, for example consisting of unwinding from a feed roller placed at one end of the table the paper towards a rotating unwinding roller.
  • tracing instruments for example consisting of unwinding from a feed roller placed at one end of the table the paper towards a rotating unwinding roller.
  • a motor arranged at the opposite end of the table driven by a motor, in order to allow the tracing operation for example the advance of the paper is interrupted, one face of the sheet is in abutment on the table as well as during the movement of the paper. So that the paper is stretched on the table between the two rollers, the rotation of the feed roller is slowed down, while the drive of the take-up roller is provided with a non-return.
  • This type of device has a major drawback in terms of the tension of the paper between the two rollers, in fact it is known that the paper is particularly sensitive to variations in the hygrometric state of the air, which results in partial deformation of the sheet. whose location is impossible to determine, affecting the quality and accuracy of the tracing.
  • the invention aims to overcome the main drawback described above.
  • the subject of the invention is therefore a device for unwinding and in advance of a sheet of paper facing a table provided with tracing instruments, for example comprising a paper feed roller placed at one end of the table held at its ends by two rotating conical sleeves secured to two flanges, the rotation of the conical shanks being braked by all appropriate means, such as spring and shoe acting on the rotating axis of each of them, the sheet of paper is caused to pass between two rotating rollers placed at the opposite end of the table , one of the rollers being a pressure roller causing the paper to advance when it is driven in rotation by the second roller driven by an electric motor, the unwound paper is returned to a revolving recovery roller provided for this purpose, intermediate between the feed and feed rollers, the paper sheet is supported on the table, the paper tension during the feed and / or the immobilization is generated by an articulated balance placed between the feed roller and the table, the latter has the function of tensioning the paper and compensating for deformations due to the hygrometric state so
  • the device comprises a paper feed roller 1 held at one end of the table 2 provided with tracing instruments for example, the sheet of paper 5 is caused to pass between two rotating rollers 3 and 4, the roller 4 is a pressure roller, the rollers 3 and 4 are held at the opposite end of the table 2, the roller 4 is rotated during the rotation of the roller 3 on which it is supported by an electric motor for example not shown, provided with a non-return, the sheet of paper 5 unwound during the rotation of the rollers 3 and 4 is returned on a rotating recovery roller 6 provided for this effect near the rollers 3 and 4, the unwound sheet of paper 5 is stretched during the interruption of the advance by means of a mobile balance 12 placed between the table 2 and the feed roller 1.
  • a mobile balance 12 placed between the table 2 and the feed roller 1.
  • the paper feed roller 1 is provided with a hollow cylindrical central core 7, held at its ends by conical shanks 8 extended by a rotating axis 9 held on flanges 10, one of the conical shanks 8 has its axis 9a movable longitudinally with respect to the support flange 10, between the flange 10 and the fitting 8, a compression spring 11 allows the fitting of the fittings 8 on the cylindrical central core 7 and therefore the maintenance feed roller 1; similarly, it allows when the spring 11 is compressed to release the roller 1 for its extraction or placement.
  • the axes 9 are braked by means of tared compression springs provided with pads pressing transversely on the axes, said springs are held in integral supports flanges 10 not shown, this braking of reeling adjustable in intensity is intended to allow the tension of the paper during the advance and / or the interruption of the advance and this by means of a balancer__12 represented figure 3 this one consisting of a rotating cylindrical cross member 13 provided with articulations 14 with ball joints for example adjusting on the independent movable arms 15, articulated at 15a and connected to the table 2, the cross member 13 is placed between the table 2 and the roller feed 1, the weight of the balance 12 is determined according to the nature of the paper used and the braking power of the feed roller so that the tension involved in the paper is sufficient to compensate for the deformations due to the hygrometric state of the air for example, said sufficient tension is generated by the rotation 'of the balance 12 around the articulation 15a of the movable
  • the sheet of paper 5 which passes between the rollers 3 and 4 and which is driven by said rollers is returned to a recovery roller 6, the pressure exerted by the roller 4 is obtained by means of arrangements such as spring 15b acting on the axis 16 for holding the roller 4, the axis being maintained between two slides 17, the rotation of the roller 3 generating the rotation of the pressure roller 4 is obtained by an electric motor known as stepping 18 allowing precise unwinding of the paper, the recovery roller 6 is driven by means of a belt or a chain 19 moving between two sprockets 20 and 21, the sprocket 20 is fixed on the shaft 16a of the roller 3 and the pinion 21 on the axis 22 of the rotating conical fitting 23 roller support 6, the speed of rotation of the conical fittings 23 recovery roller supports 6 is greater than the speed of rotation of the roller 3 and this in order to compensate for the rewinding of the paper according to variable diameter of the roller 6 as said winding.
  • the recovery roller 6 is driven by means of a belt or a chain 19 moving between two s
  • the tapered shanks 23 enter a cylindrical tube 24 on which the paper is wound as previously described for the feed roller 1, the assembly of the tapered shanks 23 on the tube 24 is however slippery so as to keep the paper taut during the action of rewinding and advancing the paper without tearing it.

Landscapes

  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Unwinding Webs (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Abstract

The invention relates to a device for unwinding, advancing and tensioning a sheet of paper opposite a table provided with drawing instruments. The device comprises a paper-feed roller 1 retained at one end of the table 2, the sheet 5 being fed to pass between two rotating rollers 3 and 4 which bear on one another and, when they are set in rotation, bring about the unwinding and advancing of the paper, the said rollers being placed at the opposite end of the table, and the unwound paper being rewound on a rotating recovery roller 6. Between the feed roller and the table 2, the paper is tensioned by means of an articulated rocker arm 12 during the unwinding and/or stopping of the unwinding. <IMAGE>

Description

La présente invention est relative à un dispositif de dévidement, avance et tension d'une feuille de papier iace à une table pourvue d'instruments de traçage par exemple.The present invention relates to a device for unwinding, advancing and tensioning a sheet of paper adjacent to a table provided with tracing instruments for example.

On connaît différents dispositifs permettant de faire dérouler et avancer une feuille de papier face à une table pourvue d'instruments de traçage par exemple consistant à dévider depuis un rouleau d'alimentation placé en une extrémité de la table le papier vers un rouleau de renvidage tournant disposé en l'extrémité opposée de la table entraîné par un moteur, afin de permettre l'opération de traçage par exemple l'avance du papier est interrompue, une face de la feuille est en appui sur la table de même que durant le déplacement du papier. Afin que le papier soit tendu sur la table entre les deux rouleaux, la rotation du rouleau d'alimentation est freinée, tandis que l'entraînement du rouleau de renvidage est pourvu d'un non-retour.Various devices are known which allow a sheet of paper to be unrolled and advanced in front of a table provided with tracing instruments, for example consisting of unwinding from a feed roller placed at one end of the table the paper towards a rotating unwinding roller. arranged at the opposite end of the table driven by a motor, in order to allow the tracing operation for example the advance of the paper is interrupted, one face of the sheet is in abutment on the table as well as during the movement of the paper. So that the paper is stretched on the table between the two rollers, the rotation of the feed roller is slowed down, while the drive of the take-up roller is provided with a non-return.

Ce genre d-e dispositif présente un inconvénient majeur au niveau de la tension du papier entre les deux rouleaux, en effet on sait que le papier est particulièrement sensible aux variations de l'état hygromètrique de l'air ce qui entraîne une déformation partielle de la feuille dont la localisation est impossible à déterminer nuisant à la qualité et précision du traçage.This type of device has a major drawback in terms of the tension of the paper between the two rollers, in fact it is known that the paper is particularly sensitive to variations in the hygrometric state of the air, which results in partial deformation of the sheet. whose location is impossible to determine, affecting the quality and accuracy of the tracing.

L'invention a pour but de palier à l'inconvénient principal précédemment décrit.The invention aims to overcome the main drawback described above.

L'invention a en conséquence pour objet un dispositif de déroulement et d'avance d'une feuille de papier face à une table pourvue d'instruments de traçage par exemple comportant un rouleau d'alimentation de papier placé en une extrémité de la table maintenu en ses extrémités par deux emmanchements coniques tournants solidaires de deux flasques, la rotation des emmanchements coniques étant freinée par tous moyens appropriés, tel que ressort et patin agissant sur l'axe tournant de chacun d'eux, la feuille de papier est amenée a passer entre deux rouleaux tournants placés à l'extrémité opposée de la table, l'un des rouleaux étant un rouleau presseur provoquant l'avance du papier lorsqu'il est animé de rotation par le second rouleau entratné par un moteur électrique, la papier dévidé est renvidé sur un rouleau récupérateur tournant prévu à cet effet, intermédiairement entre les rouleaux d'alimentation et d'avance, la feuille de papier est en appui sur la table, la tension du papier durant l'avance et/ou l'immobilisation est engendrée par un balancier articulé placé entre le rouleau d'alimentation et la table, ce dernier a pour fonction de tendre le papier et compenser les déformations dues à l'état hygromètrique afin que la feuille en appui sur la table soit d'une planitude parfaite.The subject of the invention is therefore a device for unwinding and in advance of a sheet of paper facing a table provided with tracing instruments, for example comprising a paper feed roller placed at one end of the table held at its ends by two rotating conical sleeves secured to two flanges, the rotation of the conical shanks being braked by all appropriate means, such as spring and shoe acting on the rotating axis of each of them, the sheet of paper is caused to pass between two rotating rollers placed at the opposite end of the table , one of the rollers being a pressure roller causing the paper to advance when it is driven in rotation by the second roller driven by an electric motor, the unwound paper is returned to a revolving recovery roller provided for this purpose, intermediate between the feed and feed rollers, the paper sheet is supported on the table, the paper tension during the feed and / or the immobilization is generated by an articulated balance placed between the feed roller and the table, the latter has the function of tensioning the paper and compensating for deformations due to the hygrometric state so that the sheet resting on the table is perfectly flat.

D'autres caractéristiques et avantages de l'invention ressortiront plus clairement de la description qui va suivre faite en regard des dessins joints donnés à titre d'exemple non limitatif, ou :

  • - la figure 1 est une vue schématique du dispositif de déroulement,
  • -la figure 2, le détail de maintien du rouleau d'alimentation,
  • - la figure 3, une vue en perspective du balancier,
  • - la figure 4, le dispositif d'entraînement du rouleau presseur et du rouleau de renvidage.
Other characteristics and advantages of the invention will emerge more clearly from the description which follows, given with regard to the accompanying drawings given by way of non-limiting example, or:
  • FIG. 1 is a schematic view of the unwinding device,
  • FIG. 2, the detail for holding the feed roller,
  • FIG. 3, a perspective view of the pendulum,
  • - Figure 4, the drive device of the pressure roller and the winding roller.

Comme représenté figures 1 à 4, le dispositif comporte un rouleau d'alimentation de papier 1 maintenu en une extrémité de la table 2 dotée d'instruments de traçage par exemple, la feuille de papier 5 est amenée à passer entre deux rouleaux tournants 3 et 4, le rouleau 4 est un rouleau presseur, les rouleaux 3 et 4 sont maintenus en l'extrémité opposée de la table 2, le rouleau 4 est entraîné en rotation lors de la rotation du rouleau 3 sur lequel il est en appui par un moteur électrique par exemple non représenté, pourvu d'un anti-retour, la feuille de papier 5 dévidée durant la rotation des rouleaux 3 et 4 est renvidée sur un rouleau tournant 6 de récupération prévu à cet effet à proximité des rouleaux 3 et 4, la feuille de papier dévidée 5 est tendue lors de l'interruption de l'avance au moyen d'un balancier mobile 12 placé entre la table 2 et le rouleau d'alimentation 1.As shown in Figures 1 to 4, the device comprises a paper feed roller 1 held at one end of the table 2 provided with tracing instruments for example, the sheet of paper 5 is caused to pass between two rotating rollers 3 and 4, the roller 4 is a pressure roller, the rollers 3 and 4 are held at the opposite end of the table 2, the roller 4 is rotated during the rotation of the roller 3 on which it is supported by an electric motor for example not shown, provided with a non-return, the sheet of paper 5 unwound during the rotation of the rollers 3 and 4 is returned on a rotating recovery roller 6 provided for this effect near the rollers 3 and 4, the unwound sheet of paper 5 is stretched during the interruption of the advance by means of a mobile balance 12 placed between the table 2 and the feed roller 1.

Tel que représenté figure 2, le rouleau d'alimentation de papier 1 est pourvu d'une âme centrale cylindrique 7 évidée, maintenue en ses extrémités par des emmanchements coniques 8 prolongés par un axe tournant 9 maintenu sur des flasques 10, un des emmanchements coniques 8 a son axe 9a mobile longitudinalement par rapport à la flasque support 10, entre la flasque 10 et l'emmanchement 8, un ressort 11 de compression permet l'immobilisation des emmanchements 8 sur l'âme centrale cylindrique 7 et de ce fait le maintien du rouleau d'alimentation 1 ; de même, il permet lorsque l'on comprime le ressort 11 de dégager le rouleau 1 en vue de son extraction ou mise en place. Afin d'éviter le dévidement du papier du rouleau d'alimentation 1 lorsque l'avance est interrompue, les axes 9 sont freinés au moyen de ressorts de compression tarés pourvus de patins appuyant transversalement sur les axes, lesdits ressorts sont maintenus dans des supports solidaires des flasques 10 non représentés, ce freinage de dévidement réglable en intensité a pour but de permettre la tension du papier durant l'avance et/ou l'interruption de l'avance et ce au moyen d'un balançier__12 représenté figure 3 celui-ci étant constitué d'une traverse cylindrique 13 tournante pourvue d'articulations 14 à rotules par exemple s'ajustant sur les bras mobiles 15 indépendants, articulés en 15a et reliés à la table 2, la traverse 13 est placée entre la table 2 et le rouleau d'alimentation 1, le poids du balancier 12 est déterminé selon la nature du papier utilisé et la puissance de freinage du rouleau d'alimentation et ce afin que la tension impliquée au papier soit suffisante pour compenser les déformations dues à l'état hygrométrique de l'air par exemple, ladite tension suffisante est engendrée par la rotation 'du balancier 12 autour de l'articulation 15a des bras mobiles 15, elle est croissante au fur et à mesure de la remontée du balancier durant le dévidement, ce qui a pour effet de régler cette dernière à la juste valeur de dévidement, après arrêt du dévidement elle s'équilibre sur toute la largeur de la feuille de papier malgré les déformations éventuelles de ladite feuille et ce, grâce à l'articulation entre eux de tous les éléments du balancier 12.As shown in Figure 2, the paper feed roller 1 is provided with a hollow cylindrical central core 7, held at its ends by conical shanks 8 extended by a rotating axis 9 held on flanges 10, one of the conical shanks 8 has its axis 9a movable longitudinally with respect to the support flange 10, between the flange 10 and the fitting 8, a compression spring 11 allows the fitting of the fittings 8 on the cylindrical central core 7 and therefore the maintenance feed roller 1; similarly, it allows when the spring 11 is compressed to release the roller 1 for its extraction or placement. In order to avoid the unwinding of the paper from the feed roller 1 when the feed is interrupted, the axes 9 are braked by means of tared compression springs provided with pads pressing transversely on the axes, said springs are held in integral supports flanges 10 not shown, this braking of reeling adjustable in intensity is intended to allow the tension of the paper during the advance and / or the interruption of the advance and this by means of a balancer__12 represented figure 3 this one consisting of a rotating cylindrical cross member 13 provided with articulations 14 with ball joints for example adjusting on the independent movable arms 15, articulated at 15a and connected to the table 2, the cross member 13 is placed between the table 2 and the roller feed 1, the weight of the balance 12 is determined according to the nature of the paper used and the braking power of the feed roller so that the tension involved in the paper is sufficient to compensate for the deformations due to the hygrometric state of the air for example, said sufficient tension is generated by the rotation 'of the balance 12 around the articulation 15a of the movable arms 15, it increases as and measuring the ascent of the pendulum during the unwinding, which has the effect of adjusting the latter to the fair value of unwinding, after stopping the unwinding it is balanced over the entire width of the sheet of paper despite the possible deformations of said sheet and this, thanks to the articulation between them of all the elements of the balance 12.

Tel qu'il est représenté figure 4, la feuille de papier 5 qui passe entre les rouleaux 3 et 4 et qui est entraînée par lesdits rouleaux est renvidée sur un rouleau 6 de récupération, la pression exercée par le rouleau 4 est obtenue au moyen d'aménagements tel que ressort 15b agissant sur l'axe 16 de maintien du rouleau 4, l'axe étant maintenu entre deux glissières 17, la rotation du rouleau 3 engendrant la rotation du rouleau presseur 4 est obtenue par un moteur électrique dit pas à pas 18 permettant un dévidement précis du papier, le rouleau récupérateur 6 est entraîné au moyen d'une courroie ou d'une chaîne 19 se déplaçant entre deux pignons 20 et 21, le pignon 20 est fixé sur l'arbre 16a du rouleau 3 et le pignon 21 sur l'axe 22 de l'emmanchement conique tournant 23 support de rouleau 6, la vitesse de rotation des emmanchements coniques 23 supports de rouleau récupérateur 6 est supérieure à la vitesse de rotation du rouleau 3 et ce afin de compenser le renvidage du papier suivant le diamètre variable du rouleau 6 au fur et à mesure dudit renvidage. Les emmanchements coniques 23 pénétrent dans un tube cylindrique 24 sur lequel s'enroule le papier comme préalablement décrit pour le rouleau d'alimentation 1, l'assemblage des emmanchements coniques 23 sur le tube 24 est par contre glissant de sorte à maintenir le papier tendu durant l'action de renvidage et d'avance du papier sans pour autant le déchirer.As shown in Figure 4, the sheet of paper 5 which passes between the rollers 3 and 4 and which is driven by said rollers is returned to a recovery roller 6, the pressure exerted by the roller 4 is obtained by means of arrangements such as spring 15b acting on the axis 16 for holding the roller 4, the axis being maintained between two slides 17, the rotation of the roller 3 generating the rotation of the pressure roller 4 is obtained by an electric motor known as stepping 18 allowing precise unwinding of the paper, the recovery roller 6 is driven by means of a belt or a chain 19 moving between two sprockets 20 and 21, the sprocket 20 is fixed on the shaft 16a of the roller 3 and the pinion 21 on the axis 22 of the rotating conical fitting 23 roller support 6, the speed of rotation of the conical fittings 23 recovery roller supports 6 is greater than the speed of rotation of the roller 3 and this in order to compensate for the rewinding of the paper according to variable diameter of the roller 6 as said winding. The tapered shanks 23 enter a cylindrical tube 24 on which the paper is wound as previously described for the feed roller 1, the assembly of the tapered shanks 23 on the tube 24 is however slippery so as to keep the paper taut during the action of rewinding and advancing the paper without tearing it.

Claims (5)

l °) Dispositif de dévidement, avance et tension d'une feuille de papier face à une table pourvue d'éléments de traçage comportant un rouleau d'alimentation de papier freiné en rotation placé en une extrémité de la table, la feuille de papier étant amenée à passer entre deux rouleaux en appui l'un sur l'autre en l'extrémité opposée de ladite table engendrant lorsqu'ils sont animés de rotation, le dévidement et l'avance de la feuille de papier qui est renvidée sur un rouleau de récupération, la feuille de papier entre le rouleau d'alimentation et ceux provoquant le dévidement étant tendue par un balancier mobile s'appuyant sur la feuille de papier tant en cours de dévidement qu'à l'arrêt dudit dévidement de sorte à compenser les déformations du papier dues à l'état hygrométrique de l'air ou tout autre, caractérisé par le balancier constitué d'éléments articulés entre eux, une traverse rotative s'appuyant sur la feuille de papier articulée en ses extrémités au moyen de rotules sur des bras mobiles indépendants placés de part et d'autre et maintenus articulés en leur autre extrémité par des axes fixés à la tablel °) device for unwinding, advancing and tensioning a sheet of paper facing a table provided with tracing elements comprising a paper feed roller braked in rotation placed at one end of the table, the sheet of paper being brought to pass between two rollers bearing one on the other at the opposite end of said table causing when they are rotated, the unwinding and advancement of the sheet of paper which is returned on a roll of recovery, the sheet of paper between the feed roller and those causing the unwinding being stretched by a mobile pendulum resting on the sheet of paper both during unwinding and at the end of said unwinding so as to compensate for the deformations paper due to the hygrometric state of the air or any other, characterized by the pendulum made up of elements articulated between them, a rotary cross resting on the sheet of paper articulated at its ends by means of ball joints on br ace independent mobiles placed on both sides and kept articulated at their other end by axes fixed to the table 2°) Dispositif de dévidement, avance et tension d'une feuille de papier selon la revendication 1 caractérisé par la masse du balancier croissante selon sa trajectoire circulaire lors du dévidement du papier dû au freinage de dévidement du rouleau d'alimentation suivant une intensité désirée, réglant la tension du papier à la juste valeur de dévidement tout en équilibrant la tension dudit papier lors de l'arrêt du dévidement.2 °) device for unwinding, advancing and tensioning a sheet of paper according to claim 1 characterized by the mass of the pendulum increasing along its circular trajectory during the unwinding of the paper due to the braking of unwinding of the feed roller at a desired intensity , adjusting the paper tension to the correct unwinding value while balancing the tension of said paper when the unwinding stops. 3°) Dispositif de dévidement, avance et tension d'une feuille de papier selon la revendication 1 caractérisé par l'un des rouleaux permettant le dévidement du papier et le rouleau de récupération entrafhé en rotation par un seul moteur pas à pas, la vitesse de renvidement étant supérieure à la vitesse de dévidement de sorte à compenser le renvidage du papier suivant le diamètre variable du rouleau de récupération, ce dernier maintenu au moyen d'un assemblage glissant.3 °) device for unwinding, advancing and tensioning a sheet of paper according to claim 1 characterized by one of the rollers allowing the unwinding of the paper and the recovery roller entrafhé in rotation by a single stepping motor, the speed of rewinding being greater than the reeling speed so as to compensate for the rewinding of the paper according to the variable diameter of the recovery roller, the latter maintained by means of a sliding assembly. 4°) Dispositif de dévidement, avance et tension d'une feuille de papier selon la revendication 1 caractérisé par les bras indépendants articulés du balancier permettant de parfaire la tension du papier sur toute la largeur de la feuille malgré les déformations éventuelles tant en cours de dévidement qu'en arrêt.4 °) device for unwinding, advancing and tensioning a sheet of paper according to claim 1 characterized by the independent articulated arms of the balance making it possible to perfect the tension of the paper over the entire width of the sheet despite possible deformations both during unwinding only when stopped. 5°) Dispositif de dévidement, avance et tension d'une feuille de papier selon la revendication 1 caractérisé par le moteur pas à pas permettant de définir une avance précise du papier.5 °) device for unwinding, advancing and tensioning a sheet of paper according to claim 1 characterized by the stepping motor for defining a precise advance of the paper.
EP81450002A 1980-02-01 1981-01-30 Device for unwinding, advancing and tensioning paper Withdrawn EP0033710A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8002514 1980-02-01
FR8002514A FR2475020A1 (en) 1980-02-01 1980-02-01 DEVICE FOR MOVING, ADVANCING AND TENSIONING PAPER

Publications (2)

Publication Number Publication Date
EP0033710A2 true EP0033710A2 (en) 1981-08-12
EP0033710A3 EP0033710A3 (en) 1982-04-21

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EP81450002A Withdrawn EP0033710A3 (en) 1980-02-01 1981-01-30 Device for unwinding, advancing and tensioning paper

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EP (1) EP0033710A3 (en)
JP (1) JPS56161251A (en)
FR (1) FR2475020A1 (en)

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CN110886133A (en) * 2019-12-12 2020-03-17 安庆市三环康泰纸塑有限公司 Heating device of laminating paper and auxiliary flattening structure thereof

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US5772147A (en) * 1995-07-21 1998-06-30 Gerber Garment Technology, Inc. Apparatus for performing a work operation on sheet material and a sheet material feed mechanism therefor

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FR1567285A (en) * 1968-03-15 1968-05-16
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DE2625457A1 (en) * 1976-06-05 1977-12-15 Electroacustic Gmbh Data recorder with transported recording strip - fed between two rollers via deflection roller or angled guide surface for level winding on take-up spool

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DE2443392B2 (en) * 1974-09-11 1979-11-22 Hellige Gmbh, 7800 Freiburg Recording device for a tape-shaped recording medium

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FR1567285A (en) * 1968-03-15 1968-05-16
DE2433392A1 (en) * 1973-07-11 1975-01-30 Sherritt Gordon Mines Ltd PROCESS FOR THE EXTRACTION OF NICKEL FROM HIGH MAGNESIUM CONTAINING LATERITE AND GARNIERITERCES
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Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
TECHNICAL DIGEST WESTERN ELECTRIC, no. 47, 01 juillet 1977, J.L. DE BOO et al.:"Paper Straightener and Guide" page 5 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110886133A (en) * 2019-12-12 2020-03-17 安庆市三环康泰纸塑有限公司 Heating device of laminating paper and auxiliary flattening structure thereof

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JPS56161251A (en) 1981-12-11
EP0033710A3 (en) 1982-04-21
FR2475020A1 (en) 1981-08-07

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