EP0070750A1 - Absorber stage - Google Patents

Absorber stage Download PDF

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Publication number
EP0070750A1
EP0070750A1 EP82401167A EP82401167A EP0070750A1 EP 0070750 A1 EP0070750 A1 EP 0070750A1 EP 82401167 A EP82401167 A EP 82401167A EP 82401167 A EP82401167 A EP 82401167A EP 0070750 A1 EP0070750 A1 EP 0070750A1
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EP
European Patent Office
Prior art keywords
strip
buffer stage
motor
machine
pilot
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP82401167A
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German (de)
French (fr)
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EP0070750B1 (en
Inventor
Pierre Nuttin
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.)
Individual
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Individual
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Publication date
Priority claimed from BE0/205428A external-priority patent/BE889660A/en
Application filed by Individual filed Critical Individual
Priority to AT82401167T priority Critical patent/ATE11901T1/en
Publication of EP0070750A1 publication Critical patent/EP0070750A1/en
Application granted granted Critical
Publication of EP0070750B1 publication Critical patent/EP0070750B1/en
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/24—Advancing webs by looping or like devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/449—Features of movement or transforming movement of handled material
    • B65H2301/4491—Features of movement or transforming movement of handled material transforming movement from continuous to intermittent or vice versa

Definitions

  • the invention relates to a buffer stage. It will find its application in particular in the field of processing strips, in particular of paper in the stationery, printing and computer center.
  • the paper strips must undergo several consecutive operations which are carried out by machines arranged in series. It is, for example, a pilot machine which is followed by a module performing any function.
  • the pilot machine which is intended to process the strip of paper moving in a given working direction, can also reverse the strip, either for a reason inherent in its design, to perfect adjustments or following a technical incident.
  • the movement of the paper strip in the opposite direction to the work normally carried out must then be effected, which supposes that the modules placed downstream of the pilot machine can restore part of the paper strip in order to allow this turning back.
  • the main purpose of the present invention is to provide a buffer stage inserted between the pilot machine and the following modules, this pilot stage storing a certain quantity of strips of paper which it is able to restore to the preceding stage without however imprint on the next floor.
  • pilot if necessary reversing the directions of travel of the paper strip as required without reversing the normal direction of travel of the paper strip on the modules depending on the machine. pilot.
  • Another object of the present invention is to present a buffer stage inserted between the pilot machine and the following modules which regulate the flow of the strip of paper sent to the machines placed downstream of the pilot machine as a function of the flow of the latter. .
  • the buffer stage which will find its application in particular in the field of processing strips, in particular of paper, intended to be placed between a pilot machine with two running directions and a module with a single running direction of the strip is characterized by the fact that it has means for regulating the speed of the strip of paper leaving the stage which is a function of the strip flow delivered by the pilot machine, these means also being capable of restoring a certain quantity of strips to the pilot machine while the strip leaving the stage is fixed.
  • FIG. 1 shows schematically a buffer stage 1 placed in an installation for processing a strip of paper 2, for example in the stationery or printing industry.
  • the buffer stage 1 will be inserted between a pilot machine 3 and a module 4.
  • the direction of travel of the paper strip 2 will be operated in the normal direction, that is to say from the pilot machine 3 to the module 4.
  • pilot machine 3 will present possibilities according to which the paper strip 2 can scroll in both directions, in particular in the case of adjustments or technical incidents.
  • the module 4 will only present one direction of travel which will correspond to the normal working direction.
  • the buffer stage 1 has means for regulating the speed of the strip 2 at the outlet of stage 1 as a function of the strip flow delivered by the pilot machine 3.
  • the strip flow delivered by the pilot machine towards the buffer stage and from the buffer stage towards the next module 4 will be globally identical, thus there will be no excessive accumulation of bands in the buffer stage, nor an excessive tensioning of the strip of paper at the buffer stage.
  • the means of the buffer stage will make it possible to restore a certain quantity of bands to the pilot machine 3 while the band leaving stage 1 is fixed. This last condition is also imposed by the characteristics of module 4.
  • the latter will be in the form of a motor assembly having a motor drive roller 5 around which the strip 2 is wound.
  • This motor roller 5 performs entrainment of the material in strip 2 supplied by the pilot machine 3 located upstream of the buffer stage 1.
  • a pressure wheel 6 will advantageously be used in order to apply the strip of material 2 against the drive roller 5.
  • the strip of material 2 also passes through a guide roller 7 before being returned to the next module 4, however, the presence of this guide roller 7 is not compulsory.
  • the strip of material 2 passes through a deflection roller 8 located on a guide bar 9.
  • This guide bar is oscillating and can pivot around an axis of rotation 10.
  • the axis of rotation'10 and-! e guide roller 8 of the guide bar 9 are located at each end thereof.
  • the guide bar 9 will control the drive roller 5.
  • the means for regulating and restoring a certain quantity of strips will be in the form of a drive roller 5 for driving the strip 2 and an oscillating guide bar 9 for controlling said drive roller 5, the guide bar 9 ′ being provided with a return roller 8 around which the strip 2 is wound.
  • FIG. 2 represents the different possibilities of operation of the buffer stage of the invention.
  • Figure 2a illustrates the normal operating mode.
  • the flow of paper tape 2 delivered by the pilot machine corresponds exactly to that imposed by the rotation of the drive roller 5 and therefore the band flow 2 delivered by the buffer stage is identical to the flow of the incoming band.
  • the inclination of the guide bar 9 is constant, which corresponds to an incoming tension of the fixed paper strip. It should also be noted that this balance can be achieved for different inclinations of the guide bar 9 which will correspond to the desired tensions of the paper strip 2.
  • the return to the bottom of the guide bar 2 can be imposed by its own weight or also using members such as springs.
  • FIG. 2b shows diagrammatically the case where the pilot machine increases the delivery of material, this for various reasons. Then, the length of the paper strip located between the pilot machine 3 and the buffer stage 1 will tend to increase, which will have the immediate effect of bringing the guide bar down in particular by gravity.
  • This modification of the inclination of the guide bar 9 will have the immediate consequence of increasing the speed of rotation of the drive roller 5, which will compensate for the difference in material flow delivered by the pilot machine 3 and the buffer stage 1 up to 'to make these rates identical again. This will be obtained for a new inclination of the guide bar 9 which will be such that the speed of rotation of the driving roller 5 will deliver the same amount of strip of material 2 as that delivered by the pilot machine 3.
  • FIG. 2d represents the case where the pilot machine stops.
  • the guide bar 9 moves and it is necessary to stop the driving roller 5, otherwise the paper strip 2 will tear.
  • This is what is achieved by the addition of a photoelectric cell 11 which equips the buffer stage 1.
  • This photoelectric cell 11 is placed in the power supply circuit of the motor of the drive roller 5 and , cuts the power to the drive roller 5 when it is obscured.
  • the photoelectric cell 11 is concealed by means of a sector 12 disposed on the axis of rotation 10 of the guide bar 9. Thus, for a certain inclination of the bar 9 which corresponds to a threshold tension of the paper strip 2, the sector 12 obscures the photocell 11 and immediately stops the drive roller 5.
  • FIG. 3 diagrams the electrical supply circuit of the drive motor for the motor roller 5.
  • This motor 13 includes in its supply circuit a potentiometer 14 whose axis will be coupled to the axis 10 of rotation of the guide bar 9. In this way, the speed of rotation of the motor 13 will be substantially proportional to the inclination of the guide bar 9 knowing. that the maximum speed being reached when the guide bar 9 reaches a substantially vertical position.
  • the coil 16 of the relay positions the switch 15 so that the motor is supplied through the potentiometer 14.
  • the relay coil 16 positions the switch 15 so that the circuit is open and therefore the motor 13 is no longer supplied. It will be desirable to use a motor 13 provided with a brake so that, when it is no longer supplied, its axis is immobilized.

Landscapes

  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Basic Packing Technique (AREA)

Abstract

1. A buffer stage for the treatment of bands, especially paper bands, which is intended for being disposed between a pilot-machine (3) with two moving directions and a modulus (4) with a single moving direction, and which permits to regulate the speed of the band (2) at the delivery of the stage (1) as a function of the flow-rate of the band delivered by the pilot-machine (3), and which also can restore a certain quantity of bands (2) to the pilot-machine (3), when the band at the delivery of the stage (1) is fixed, characterized in that it comprises a driving roll (5) for the operating of the band (2) controled by a guide-rod (9) provided with a reversing roller (8) around which winds the band proceeding from the pilot-machine (3), said guide-rod (9) bringing on its axis a sector (12) which occults a photoelectric cell (11) for the feeding of said motor (13) intended for operating the driving motor (5) during a certain angular position of the guide-rod (9) which corresponds with a tension of the band (2) at the entry of the buffer stage (1) superior to a determinated threshold.

Description

L'invention est relative à un étage tampon. Elle trouvera notamment son application dans le domaine du traitement des bandes notamment de papier dans la papeterie , 1 'imprimerie et centre informatique.The invention relates to a buffer stage. It will find its application in particular in the field of processing strips, in particular of paper in the stationery, printing and computer center.

Actuellement, les bandes de papier doivent subir plusieurs opérations consécutives qui sont réalisées par des machines disposées en série. Il s'agit, par exemple, d'une machine pilote qui est suivie d'un module réalisant une fonction quelconque. Toutefois, il arrive fréquemment que la machine pilote qui est destinée à traiter la bande de papier défilant dans un sens de travail donné, puisse également faire des retours en arrière de la bande soit pour une raison inhérente à sa conception, pour parfaire des réglages ou à la suite d'un incident technique. Le mouvement de la bande de papier en sens inverse du travail normalement effectué doit alors être opéré, ce qui suppose que les modules placés en aval de la machine pilote puissent restituer une partie de la bande de papier afin de permettre ce retour en arrière.Currently, the paper strips must undergo several consecutive operations which are carried out by machines arranged in series. It is, for example, a pilot machine which is followed by a module performing any function. However, it frequently happens that the pilot machine which is intended to process the strip of paper moving in a given working direction, can also reverse the strip, either for a reason inherent in its design, to perfect adjustments or following a technical incident. The movement of the paper strip in the opposite direction to the work normally carried out must then be effected, which supposes that the modules placed downstream of the pilot machine can restore part of the paper strip in order to allow this turning back.

Toutefois, il arrive fréquemment que, les modules disposés en aval de la machine pilote ne disposent que d'un sens unique de défilement de la bande de papier et par conséquent le retour en arrière de la matière traitée est rendu impossible par leur conception propre.However, it frequently happens that, the modules arranged downstream of the pilot machine have only a single direction of travel of the paper strip and consequently the reversal of the treated material is made impossible by their own design.

Il se crée donc une situation où la machine pilote doit effectuer un mouvement inverse du travail effectué normal alors que la matière ne peut lui être restituée par l'autre machine suivante, incapable d'effectuer un retour en arrière.It therefore creates a situation where the pilot machine must perform a reverse movement from the normal work performed while the material can not be returned to it by the next following machine, unable to reverse.

Le but principal de la présente invention est de proposer un étage tampon inséré entre la machine pilote et les modules suivants, cet étage pilote stockant une certaine quantité de bandes de papier qu'elle est à même de restituer vers l'étage précédent sans pour autant en empreinter à l'étage suivant.The main purpose of the present invention is to provide a buffer stage inserted between the pilot machine and the following modules, this pilot stage storing a certain quantity of strips of paper which it is able to restore to the preceding stage without however imprint on the next floor.

Il est ainsi possible d'effectuer librement les réglages sur la machine.pilote en inversant éventuellement les sens de défilement de la bande de papier selon les besoins sans pour autant inverser le sens de défilement normal de la bande de papier sur les modules suivant la machine pilote.It is thus possible to freely carry out the settings on the machine. Pilot, if necessary reversing the directions of travel of the paper strip as required without reversing the normal direction of travel of the paper strip on the modules depending on the machine. pilot.

Un autre but de la présente invention est de présenter un étage tampon inséré entre la machine pilote et les modules suivant qui régulent le débit de la bande de papier envoyée vers les machines placées en aval de la machine pilote en fonction du débit de celle-ci.Another object of the present invention is to present a buffer stage inserted between the pilot machine and the following modules which regulate the flow of the strip of paper sent to the machines placed downstream of the pilot machine as a function of the flow of the latter. .

De plus, il y aura un arrêt automatique du déroulement de la bande de papier lorsque la tension de celle-ci dépassera un certain seuil à-la sortie de la machine pilote, ce qui évitera toute déchirure accidentel le.In addition, there will be an automatic stop of the progress of the strip of paper when the tension thereof exceeds a certain threshold at the outlet of the pilot machine, which will prevent any accidental tearing.

D'autres buts et avantages de la présente invention apparaîtront au cours de la description qui va suivre, qui n'est cependant donnée qu'à titre indicatif et qui n'a pas pour but de la limiter.Other objects and advantages of the present invention will appear during the description which follows, which is however only given for information and which is not intended to limit it.

L'étage tampon qui trouvera notamment son application dans le domaine du traitement des bandes en particulier de papier, destiné à être placé entre une machine pilote à deux sens de défilement et un module à un seul sens de défilement de la bande est caractérisé par le fait qu'il présente des moyens de régulation de la vitesse de la bande de papier en sortie de l'étage qui est fonction du débit de bande délivrée par la machine pilote, ces moyens étant également aptes à restituer une certaine quantité de bandes à la machine pilote alors que la bande en sortie d'étage est fixe.The buffer stage which will find its application in particular in the field of processing strips, in particular of paper, intended to be placed between a pilot machine with two running directions and a module with a single running direction of the strip is characterized by the fact that it has means for regulating the speed of the strip of paper leaving the stage which is a function of the strip flow delivered by the pilot machine, these means also being capable of restoring a certain quantity of strips to the pilot machine while the strip leaving the stage is fixed.

L'invention sera mieux comprise si l'on se réfère à la description ci-dessous ainsi qu'aux dessins en annexe qui en font partie intégrante.

  • La figure 1 schématise l'étage tampon de l'invention placé dans une installation de traitement de bandes de papier.
  • La figure 2 schématise les différentes possibilités de fonctionnement de l'étage tampon de l'invention.
  • La figure 3 représente le schéma du circuit d'alimentation électrique de l'étage tampon dans un mode préférentiel de réalisation de celui-ci.
The invention will be better understood if reference is made to the description below and to the accompanying drawings which form an integral part thereof.
  • Figure 1 shows schematically the buffer stage of the invention placed in an installation for processing paper strips.
  • Figure 2 shows schematically the different possibilities of operation of the buffer stage of the invention.
  • Figure 3 shows the diagram of the electrical supply circuit of the buffer stage in a preferred embodiment thereof.

L'étage tampon de l'invention trouvera tout particulièrement son application dans le domaine du traitement des bandes de papier. La figure 1 schématise un étage tampon 1 placé dans une installation de traitement d'une bande de papier 2 par exemple dans l'industrie de la papeterie o.u de l'imprimerie. L'étage tampon 1 sera inséré entre une machine pilote 3 et un module 4. Le sens de défilement de la bande de papier 2 sera opéré dans le sens normal c'est-à-dire depuis la machine pilote 3 vers le module 4.The buffer stage of the invention will particularly find its application in the field of processing paper strips. Figure 1 shows schematically a buffer stage 1 placed in an installation for processing a strip of paper 2, for example in the stationery or printing industry. The buffer stage 1 will be inserted between a pilot machine 3 and a module 4. The direction of travel of the paper strip 2 will be operated in the normal direction, that is to say from the pilot machine 3 to the module 4.

Toutefois, la machine pilote 3 présentera des possibilités selon lesquelles la bande de papier 2 pourra défiler dans les deux sens, en particulier dans le cas des réglages ou des incidents techniques.However, the pilot machine 3 will present possibilities according to which the paper strip 2 can scroll in both directions, in particular in the case of adjustments or technical incidents.

Par contre, le module 4 ne présentera qu'un sens de défilement qui correspondra au sens de travail normal.On the other hand, the module 4 will only present one direction of travel which will correspond to the normal working direction.

Selon l'invention, l'étage tampon 1 présente des moyens de régulation de la vitesse de la bande 2 en sortie d'étage 1 en fonction du débit de bande délivrée par la machine pilote 3. De la sorte, les débits de bande délivrée par la machine pilote vers l'étage tampon et depuis l'étage tampon vers le module suivant 4, seront globalement identiques, ainsi il n'y aura pas accumulation excessive de bandes dans l'étape tampon, ni une mise sous tension excessive de la bande de papier au niveau de l'étage tampon.According to the invention, the buffer stage 1 has means for regulating the speed of the strip 2 at the outlet of stage 1 as a function of the strip flow delivered by the pilot machine 3. In this way, the strip flow delivered by the pilot machine towards the buffer stage and from the buffer stage towards the next module 4, will be globally identical, thus there will be no excessive accumulation of bands in the buffer stage, nor an excessive tensioning of the strip of paper at the buffer stage.

En outre, les moyens de l'étage tampon permettront de restituer une certaine quantité de bandes à la machine pilote 3 alors que la bande en sortie d'étage 1 est fixe. Cette dernière condition étant imposée d'ailleurs par les caractéristiques du module 4.In addition, the means of the buffer stage will make it possible to restore a certain quantity of bands to the pilot machine 3 while the band leaving stage 1 is fixed. This last condition is also imposed by the characteristics of module 4.

Selon un mode préférentiel de réalisation de l'étage tampon, celui-ci se présentera sous la forme d'un ensemble moteur disposant d'un rouleau d'entraînement moteur 5 autour duquel s'enroule la bande 2. Ce rouleau moteur 5 effectue l'entraînement de la matière en bande 2 fournie par la machine pilote 3 située en amont de l'étage tampon 1. Une molette de pression 6 sera avantageusement utilisée afin d'appliquer la bande de matière 2 contre le rouleau moteur 5.According to a preferred embodiment of the buffer stage, the latter will be in the form of a motor assembly having a motor drive roller 5 around which the strip 2 is wound. This motor roller 5 performs entrainment of the material in strip 2 supplied by the pilot machine 3 located upstream of the buffer stage 1. A pressure wheel 6 will advantageously be used in order to apply the strip of material 2 against the drive roller 5.

Dans le cas de la figure 1, la bande de matière 2 passe en outre par un rouleau de guidage 7 avant d'être renvoyée vers le module suivant 4, toutefois, la présence de ce rouleau de guidage 7 n'est pas obligatoire.In the case of FIG. 1, the strip of material 2 also passes through a guide roller 7 before being returned to the next module 4, however, the presence of this guide roller 7 is not compulsory.

Avant son arrivée sur le rouleau moteur 5, la bande de matière 2 passe par un galet de renvoi 8 situé sur une barre guide 9. Cette barre guide est oscillante et peut pivoter autour d'un axe de rotation 10. Dans le cas de la figure 1, l'axe de rotation'10 et-!e galet de renvoi 8 de la barre guide 9 sont situés à chaque extrémité de celle-ci. La barre guide 9 assurera la commande du rouleau moteur 5. Ainsi, selon l'invention, les moyens de régulation et de restitution d'une certaine quantité de bandes, se présenteront sous la forme d'un rouleau moteur 5 d'entraînement de la bande 2 et d'une barre guide oscillante 9 de commande du dit rouleau moteur 5, la barre guide 9 'étant munie d'un galet de renvoi 8 autour duquel s'enroule la bande 2.Before arriving on the drive roller 5, the strip of material 2 passes through a deflection roller 8 located on a guide bar 9. This guide bar is oscillating and can pivot around an axis of rotation 10. In the case of the Figure 1, the axis of rotation'10 and-! e guide roller 8 of the guide bar 9 are located at each end thereof. The guide bar 9 will control the drive roller 5. Thus, according to the invention, the means for regulating and restoring a certain quantity of strips, will be in the form of a drive roller 5 for driving the strip 2 and an oscillating guide bar 9 for controlling said drive roller 5, the guide bar 9 ′ being provided with a return roller 8 around which the strip 2 is wound.

La figure 2 représente les différentes possibilités de fonctionnement de l'étage tampon de l'invention.FIG. 2 represents the different possibilities of operation of the buffer stage of the invention.

La figure 2a illustre le mode de fonctionnement normal. Dans ce cas, le débit de bande de papier 2 délivrée par la machine pilote correspond exactement à celui imposé par la rotation du rouleau moteur 5 et par conséquent le débit de bande 2 délivrée par l'étage tampon est identique au débit de la bande entrante. L'inclinaison de la barre guide 9 est constante, ce qui correspond à une tension entrante de la bande de papier fixe. Il faut noter d'ailleurs que cet équilibre peut être atteint pour différentes inclinaisons de la barre guide 9 qui correspondront à des tensions souhaitées de la bande de papier 2.Figure 2a illustrates the normal operating mode. In this case, the flow of paper tape 2 delivered by the pilot machine corresponds exactly to that imposed by the rotation of the drive roller 5 and therefore the band flow 2 delivered by the buffer stage is identical to the flow of the incoming band. The inclination of the guide bar 9 is constant, which corresponds to an incoming tension of the fixed paper strip. It should also be noted that this balance can be achieved for different inclinations of the guide bar 9 which will correspond to the desired tensions of the paper strip 2.

Le rappel vers le bas de la barre guide 2 peut être imposé par son propre poids ou à l'aide également d'organes tels que des ressorts.The return to the bottom of the guide bar 2 can be imposed by its own weight or also using members such as springs.

La figure 2b schématise le cas où la machine pilote augmente la délivrance de matière, ceci pour diverses raisons. Alors, la longueur de la bande de papier située entre la machine pilote 3 et l'étage tampon 1 aura tendance à augmenter, ce qui aura pour effet immédiat de ramener la barre guide vers le bas notamment par gravité. Cette modification de l'inclinaison de la barre guide 9 aura pour conséquence immédiate d'augmenter la vitesse de rotation du rouleau moteur 5, ce qui compensera l'écart de débit de matière délivrée par la machine pilote 3 et l'étage tampon 1 jusqu'à rendre a nouveau ces débits identiques. Ce qui sera obtenu pour une nouvelle inclinaison de la barre guide 9 qui sera telle que la vitesse de rotation du rouleau moteur 5 délivrera la même quantité de bande de matière 2 que celle délivrée par la machine pilote 3.FIG. 2b shows diagrammatically the case where the pilot machine increases the delivery of material, this for various reasons. Then, the length of the paper strip located between the pilot machine 3 and the buffer stage 1 will tend to increase, which will have the immediate effect of bringing the guide bar down in particular by gravity. This modification of the inclination of the guide bar 9 will have the immediate consequence of increasing the speed of rotation of the drive roller 5, which will compensate for the difference in material flow delivered by the pilot machine 3 and the buffer stage 1 up to 'to make these rates identical again. This will be obtained for a new inclination of the guide bar 9 which will be such that the speed of rotation of the driving roller 5 will deliver the same amount of strip of material 2 as that delivered by the pilot machine 3.

Le cas de la figure 2c est inverse à celui de la figure 2b. Il y a réduction du débit de matière délivré par la machine pilote 3 par rapport à celui délivré par l'étage tampon 1 vers le module 4. Alors, la barre guide 9 sera ramenée dans une position plus horizontale résultante de la traction exercée par la bande de matière 2 sur le galet de renvoi 8. Cette modification de l'inclinaison de la barre guide 9 vers une position plus horizontale aura pour conséquence immédiate de ralentir la vitesse de rotation du rouleau moteur 5, afin de réajuster les débits de matière délivrés respectivement par la machine pilote 3 et l'étage tampon 1. En effet, sur une longue période, seul un équilibre entre les débits de bande de matière délivrés par la machine pilote 3 et l'étage tampon 1 peut être envisagé sous peine de voir une accumulation de bandes de papier dans l'étage tampon 1 ou de voir la bande de papier se rompre par mise sous traction excessive de celle-ci.The case of Figure 2c is opposite to that of Figure 2b. There is a reduction in the flow of material delivered by the pilot machine 3 compared to that delivered by the buffer stage 1 towards the module 4. Then, the guide bar 9 will be brought back into a more horizontal position resulting from the traction exerted by the strip of material 2 on the idler roller 8. This modification of the inclination of the guide bar 9 towards a more horizontal position will have the immediate consequence of slowing down the speed of rotation of the drive roller 5, in order to readjust the flow rates of material delivered respectively by the pilot machine 3 and the buffer stage 1. In fact, over a long period, only a balance between the flow rates of material web delivered by the pilot machine 3 and the buffer stage 1 can be envisaged under penalty of seeing an accumulation of paper strips in the buffer stage 1 or to see the paper strip rupture by putting it under excessive traction.

La figure 2d représente le cas où la machine pilote s'arrête. Dans ce cas, tant que le rouleau moteur 5 est en marche, la barre guide 9 se déplace et il est nécessaire d'arrêter le rouleau moteur 5 sous peine de voir la bande de papier 2 se déchirer. C'est ce qui est réalisé par l'adjonction d'une cellule photo-électrique 11 qui équipe l'étage tampon 1. Cette cellule photo-électrique 11 est placée dans le circuit d'alimentation du moteur du rouleau d'entraînement 5 et, coupe l'alimentation du rouleau moteur 5 lorsqu'elle est occultée. L'occultation de la cellule photo-électrique 11 est réalisée à l'aide d'un secteur 12 disposé sur l'axe de rotation 10 de la barre guide 9. Ainsi, pour une certaine inclinaison de la barre 9 qui correspond à un seuil de tension de la bande de papier 2, le secteur 12 occulte la cellule photo-électrique 11 et stoppe immédiatement le rouleau moteur 5.FIG. 2d represents the case where the pilot machine stops. In this case, as long as the driving roller 5 is running, the guide bar 9 moves and it is necessary to stop the driving roller 5, otherwise the paper strip 2 will tear. This is what is achieved by the addition of a photoelectric cell 11 which equips the buffer stage 1. This photoelectric cell 11 is placed in the power supply circuit of the motor of the drive roller 5 and , cuts the power to the drive roller 5 when it is obscured. The photoelectric cell 11 is concealed by means of a sector 12 disposed on the axis of rotation 10 of the guide bar 9. Thus, for a certain inclination of the bar 9 which corresponds to a threshold tension of the paper strip 2, the sector 12 obscures the photocell 11 and immediately stops the drive roller 5.

A partir de ce moment là, il est même possible à la machine pilote d'inverser le sens de défilement normal de la bande de papier 2 sans pour autant que celle-ci se déchire puisque l'étage tampon 1 sera à même de restituer une partie de la bande de papier 2 qui est stockée entre le galet de renvoi 8 et le rouleau moteur 5. Lors du retour en arrière de la bande de papier 2, il est bien évident que la barre 9 s'élèvera et il sera nécessaire que, durant toute cette opération , la cellule photo-électrique 11 soit occultée afin que le rouleau moteur 5 soit fixe et par conséquent que la bande de papier en sortie d'étage tampon 1 soit également fixe.From this moment there, it is even possible for the pilot machine to reverse the normal direction of travel of the paper strip 2 without this tearing since the buffer stage 1 will be able to restore a part of the paper strip 2 which is stored between the deflection roller 8 and the drive roller 5. When the paper strip 2 goes back, it is obvious that the bar 9 will rise and it will be necessary that , during all this operation, the photoelectric cell 11 is obscured so that the drive roller 5 is fixed and therefore that the paper strip at the output of buffer stage 1 is also fixed.

La figure 3 schématise le circuit d'alimentation électrique du moteur d'entraînement du rouleau moteur 5.FIG. 3 diagrams the electrical supply circuit of the drive motor for the motor roller 5.

Ce moteur 13 comprend dans son circuit d'alimentation un potentiomètre 14 dont l'axe sera accouplé à l'axe 10 de rotation de la barre guide 9. De la sorte, la vitesse de rotation dû-moteur 13 sera sensiblement proportionnelle à l'inclinaison de la barre guide 9 sachant . que la vitesse maximale étant atteinte lorsque la barre guide 9 atteint une position sensiblement verticale.This motor 13 includes in its supply circuit a potentiometer 14 whose axis will be coupled to the axis 10 of rotation of the guide bar 9. In this way, the speed of rotation of the motor 13 will be substantially proportional to the inclination of the guide bar 9 knowing. that the maximum speed being reached when the guide bar 9 reaches a substantially vertical position.

En outre, dans le circuit d'alimentation du moteur 13, sera placé un interrupteur 15 commandé par une bobine de relais 16. Cette bobine 16 étant elle-même alimentée par un étage redresseur 17, au-travers d'une cellule photo-électrique 18.In addition, in the motor supply circuit 13, will be placed a switch 15 controlled by a relay coil 16. This coil 16 is itself supplied by a rectifier stage 17, through a photoelectric cell 18.

Ainsi, lorsque la cellule 18 est éclairée, la bobine 16 du relais positionne l'interrupteur 15 de telle sorte que le moteur soit alimenté au-travers du potentiomètre 14. Par contre, lorsque la cellule 18 est occultée, notamment par le secteur 12, alors la bobine du relais 16 positionne l'interrupteur 15 de telle sorte à ce que le circuit soit ouvert et donc le moteur 13 n'est plus alimenté. Il sera souhaitable d'utiliser un moteur 13 muni d'un frein afin que, lorsqu'il ne soit plus alimenté, son axe soit immobilisé.Thus, when the cell 18 is lit, the coil 16 of the relay positions the switch 15 so that the motor is supplied through the potentiometer 14. On the other hand, when the cell 18 is obscured, in particular by the sector 12, then the relay coil 16 positions the switch 15 so that the circuit is open and therefore the motor 13 is no longer supplied. It will be desirable to use a motor 13 provided with a brake so that, when it is no longer supplied, its axis is immobilized.

D'autres mises en oeuvre de la présente invention auraient pu être adoptées sans pour autant sortir du cadre de celle-ci.Other implementations of the present invention could have been adopted without departing from the scope thereof.

Claims (8)

1. Etage tampon dans le domaine du traitement des bandes notamment de papier destinées à être placées entre une machine pilote (3) à deux sens de défilement et un module (4) à un seul sens de défilement, caractérisé par le fait qu'il présente des moyens de régulation de la . vitesse de la bande (2) en sortie d'étage (1) en fonction du débit de bande délivré par la machine pilote (3), ces moyens étant aptes également à restituer une certaine quantité .de bandes (2) à la machine piloté'(3) alors que la bande en sortie d'étage (1) est fixe.1. Buffer stage in the field of processing strips in particular of paper intended to be placed between a pilot machine (3) with two directions of travel and a module (4) with only one direction of travel, characterized in that it presents means for regulating the. speed of the strip (2) at the output of the stage (1) as a function of the strip flow rate delivered by the pilot machine (3), these means also being capable of restoring a certain quantity of strips (2) to the piloted machine '(3) while the strip leaving the stage (1) is fixed. 2. Etage tampon selon la revendication 1, caractérisé par le fait que les moyens se présentent sous la forme d'un rouleau moteur (5) d'entraînement de la bande (2) et d'une barre guide (9) de commande du dit moteur, doté d'un galet de renvoi (8) autour duquel s'enroule la bande provenant de la machine pilote (3).2. Buffer stage according to claim 1, characterized in that the means are in the form of a drive roller (5) for driving the strip (2) and a guide bar (9) for controlling the said motor, provided with a return roller (8) around which the strip coming from the pilot machine (3) is wound. 3. Etage tampon selon la revendication 2, caractérisé par le fait que le rouleau moteur (5) accélère sa vitesse de rotation lorsque la tension de la bande (2) entre la machine pilote (3) et l'étage t ampon (1) diminue.3. buffer stage according to claim 2, characterized in that the drive roller (5) accelerates its speed of rotation when the tension of the strip (2) between the pilot machine (3) and the stage t ampon (1) decreases. 4. Etage tampon selon la revendication 2, caractérisé par le fait que le rouleau moteur (5) s'arrête lorsque la tension de la bande (2) à l'entrée de l'étage tampon (1) dépasse un certain seuil.4. Buffer stage according to claim 2, characterized in that the drive roller (5) stops when the tension of the strip (2) at the entrance of the buffer stage (1) exceeds a certain threshold. 5. Etage tampon selon la revendication 2, caractérisé par le fait que la barre guide (9) porte sur son axe (10) de rotation un potentiomètre (14) placé dans le circuit d'alimentation du moteur d'entraînement (13) du rouleau moteur (5).5. Buffer stage according to claim 2, characterized in that the guide bar (9) carries on its axis (10) of rotation a potentiometer (14) placed in the supply circuit of the drive motor (13) of the motor roller (5). 6. Etage tampon selon la revendication 4, caractérisé par le fait que la barre guide (9) porte sur son axe un secteur-(12) qui vient occulter une cellule photo-électrique (11) d'alimentation du moteur (13) d'entraînement du rouleau moteur (5) pour une certaine position angulaire de la barre guide (9) qui correspond à une tension de bande (2) supérieure au seuil déterminé.6. buffer stage according to claim 4, characterized in that the guide bar (9) carries on its axis a sector- (12) which obscures a photoelectric cell (11) supplying the motor (13) d drive of the drive roller (5) for a certain angular position of the guide bar (9) which corresponds to a belt tension (2) greater than the determined threshold. 7. Etage tampon selon la revendication 2, caractérisé par le fait qu'un galet pression (6) applique la bande de papier 2 sur le rouleau moteur (5).7. Buffer stage according to claim 2, characterized in that a pressure roller (6) applies the paper strip 2 to the drive roller (5). 8. Etage tampon selon la revendication 2, caractérisé par le fait que le moteur (13) d'entraînement du rouleau moteur (5) est équipé d'un frein .8. Buffer stage according to claim 2, characterized in that the motor (13) for driving the motor roller (5) is equipped with a brake.
EP82401167A 1981-07-17 1982-06-24 Absorber stage Expired EP0070750B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82401167T ATE11901T1 (en) 1981-07-17 1982-06-24 BUFFER LEVEL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE205428 1981-07-17
BE0/205428A BE889660A (en) 1981-07-17 1981-07-17 DEVICE ESTABLISHING A BUFFER STAGE BETWEEN TWO FUNCTIONS OR MACHINES ALLOWING THE RETURN WITHOUT DETERIORATION OF THE MATERIAL.

Publications (2)

Publication Number Publication Date
EP0070750A1 true EP0070750A1 (en) 1983-01-26
EP0070750B1 EP0070750B1 (en) 1985-02-20

Family

ID=3843444

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82401167A Expired EP0070750B1 (en) 1981-07-17 1982-06-24 Absorber stage

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EP (1) EP0070750B1 (en)
AT (1) ATE11901T1 (en)
DE (1) DE3262412D1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2175931A (en) * 1985-05-31 1986-12-10 Rockwell Rimoldi Spa Machine for converting rolled cloth into sheets
GB2178413A (en) * 1985-07-19 1987-02-11 Molins Plc Web transport system
FR2611590A1 (en) * 1987-03-06 1988-09-09 Remy Hubert Unwinder for web of paper for computer printer
GB2250273A (en) * 1990-11-29 1992-06-03 Molins Plc Web tension control system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2138482A1 (en) * 1970-09-03 1972-03-16 Tymac Von Schulthess Rechberg Paper feed system for a printing unit and in particular for a multi-color printing unit
US3727818A (en) * 1970-07-31 1973-04-17 Mashinenfab Benninger Ag Apparatus for guiding webs in an extended condition
DE2227995A1 (en) * 1972-06-08 1974-01-03 Giesenhagen Kg LOSS STORAGE FOR TAPE-SHAPED MATERIAL
DE2637005A1 (en) * 1975-08-20 1977-03-03 Honeywell Inc BELT TRANSPORT CONTROL DEVICE
DE2717618A1 (en) * 1977-04-21 1978-10-26 Vepa Ag Material strip traction speed control mechanism - has roller in frictional contact with support bars coupled to potentiometer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3727818A (en) * 1970-07-31 1973-04-17 Mashinenfab Benninger Ag Apparatus for guiding webs in an extended condition
DE2138482A1 (en) * 1970-09-03 1972-03-16 Tymac Von Schulthess Rechberg Paper feed system for a printing unit and in particular for a multi-color printing unit
DE2227995A1 (en) * 1972-06-08 1974-01-03 Giesenhagen Kg LOSS STORAGE FOR TAPE-SHAPED MATERIAL
DE2637005A1 (en) * 1975-08-20 1977-03-03 Honeywell Inc BELT TRANSPORT CONTROL DEVICE
DE2717618A1 (en) * 1977-04-21 1978-10-26 Vepa Ag Material strip traction speed control mechanism - has roller in frictional contact with support bars coupled to potentiometer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2175931A (en) * 1985-05-31 1986-12-10 Rockwell Rimoldi Spa Machine for converting rolled cloth into sheets
GB2178413A (en) * 1985-07-19 1987-02-11 Molins Plc Web transport system
FR2611590A1 (en) * 1987-03-06 1988-09-09 Remy Hubert Unwinder for web of paper for computer printer
GB2250273A (en) * 1990-11-29 1992-06-03 Molins Plc Web tension control system

Also Published As

Publication number Publication date
EP0070750B1 (en) 1985-02-20
ATE11901T1 (en) 1985-03-15
DE3262412D1 (en) 1985-03-28

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