EP0962412B1 - Dispositif et méthode pour alimenter des films - Google Patents

Dispositif et méthode pour alimenter des films Download PDF

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Publication number
EP0962412B1
EP0962412B1 EP99107471A EP99107471A EP0962412B1 EP 0962412 B1 EP0962412 B1 EP 0962412B1 EP 99107471 A EP99107471 A EP 99107471A EP 99107471 A EP99107471 A EP 99107471A EP 0962412 B1 EP0962412 B1 EP 0962412B1
Authority
EP
European Patent Office
Prior art keywords
sensor
roller
distance
foil
supply roll
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.)
Expired - Lifetime
Application number
EP99107471A
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German (de)
English (en)
Other versions
EP0962412A2 (fr
EP0962412A3 (fr
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.)
INDAG Gesellschaft fuer Industriebedarf mbH and Co Betriebs KG
Original Assignee
INDAG Gesellschaft fuer Industriebedarf mbH and Co Betriebs KG
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 INDAG Gesellschaft fuer Industriebedarf mbH and Co Betriebs KG filed Critical INDAG Gesellschaft fuer Industriebedarf mbH and Co Betriebs KG
Priority to SI9930499T priority Critical patent/SI0962412T1/xx
Publication of EP0962412A2 publication Critical patent/EP0962412A2/fr
Publication of EP0962412A3 publication Critical patent/EP0962412A3/fr
Application granted granted Critical
Publication of EP0962412B1 publication Critical patent/EP0962412B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B41/00—Supplying or feeding container-forming sheets or wrapping material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/182—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in unwinding mechanisms or in connection with unwinding operations
    • B65H23/1825—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in unwinding mechanisms or in connection with unwinding operations and controlling web tension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/042—Sensing the length of a web loop
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/17—Surface bonding means and/or assemblymeans with work feeding or handling means
    • Y10T156/1702—For plural parts or plural areas of single part
    • Y10T156/1712—Indefinite or running length work
    • Y10T156/1715—Means joining indefinite length work edge to edge

Definitions

  • the invention relates to a device for feeding sheet material, e.g. to Production of foil bags, in which fed from a supply roll sheet material and is deducted from a trigger device, and a corresponding Method.
  • the film material before the trigger under Suspense In a process in which sheet material is supplied from a supply roll in one piece is withdrawn from a withdrawal device for further processing, wherein the trigger means a predetermined clock or a predetermined speed which corresponds to the processing speed of the following processing stations is adjusted, the film material before the trigger under Suspense.
  • the supply roll is rotatably mounted and is withdrawn by the Slide in rotation.
  • Such a film feeding device is e.g. for the production of foil bags needed.
  • foil pouches include e.g. two rectangular side foils in the filled state at the side edges are each welded together. Between the fourth edges is possibly a bottom or bottom foil welded, the is folded up so that there is room for filling in the foil bag.
  • This Filled goods can e.g. to be a drink.
  • the voltage before the trigger device by a so-called.
  • Tensor device provided.
  • the film is over a Number of fixed and moving rollers out, arranged alternately are.
  • the movable rollers are acted upon by a spring force, the larger becomes, the smaller the distance between the movable or fixed guide rollers becomes. In this way, the film is always under tension.
  • the withdrawal force that is necessary is to deduct a certain amount of film material from the supply roll, not constant, since the diameter of the supply roll with increasing settlement of the Film material reduced and, accordingly, the expended torque changes, which changes the tension of the film.
  • the other is the Tension of the film is not constant, since the tensor device is not a constant force on the sheet material, when the distance between the movable and the fixed Pulleys changed as the spring force acting on the moving rollers acts, is proportional to the length of the spring.
  • FR 22 11 933 shows a device for unwinding and winding up of fabric, in which a electromagnetic brake ensures a constant tension during winding.
  • EP 015 97 18 discloses a speed control and regulation device for a continuous strip tape material.
  • the film material of a motor-driven supply roll fed, followed by at least one stationary Guided deflection roller and at least one sensor roller whose distance from the at least one deflection roller is variable, and finally by a trigger device subtracted, whereby the speed of the drive of the supply roll is increased, when the distance of the sensor roller from the guide roller a predetermined first Distance falls below, and the speed of the drive is lowered when the Distance of the sensor roller from the guide roller a second predetermined distance exceeds.
  • the feed device is a motor-driven supply roll with a supply line, a withdrawal device with a withdrawal capacity and a consumption sensor that depends on the consumption of film material of the Drive the supply roll is controlled and the between the supply roll and the trigger device is arranged, provided, wherein the consumption sensor at least a stationary guide roller, at least one sensor roller, which is stored and is arranged that they according to the difference between supply and Ab216 forme changed their distance to the guide roller, and comprises a sensor device, which detects the change in distance and falls below a predetermined first Distance increases the speed of the drive of the supply roll and when exceeding a predetermined second distance the speed of the drive decreased.
  • a slowdown or acceleration of the supply roll, without this complete Stopping can be beneficial when producing very large and therefore heavy stock rolls be used. In this way, the forces on the drive of the supply roll reduced.
  • the supply roll is exceeded the predetermined second distance, if necessary, completely switched off and at Falling below the predetermined first distance possibly switched back on. A Such a configuration may be advantageous if the fastest possible correction the position of the sensor roller is desired, or if the control as simple as possible should be designed.
  • the sensor roller may e.g. hang freely through the foil.
  • a guide means provided along which the at least one Sensor roller moves during the distance change, to ensure safe guidance to ensure the at least one sensor roller, without causing malfunction can come through a shift.
  • a particularly smooth sliding of the sensor roller in the guide device is achieved when it is oriented substantially vertically.
  • the at least one sensor roller can be the constant tension in the film material maintained by their own weight. Depending on the requirement, she can additionally be loaded by further weights to a predetermined voltage adjust.
  • the sensor device comprises a first Sensor that emits a signal to accelerate the drive when the distance the at least one sensor roller of the at least one guide roller a first predetermined distance falls below.
  • the Sensor means a second sensor which receives a signal to slow down the drive emits when the distance between the at least one sensor roller of the at least a deflection roller exceeds the second predetermined distance.
  • the device comprises a first safety sensor that generates an error signal when the at least one Sensor roller falls below a minimum distance from the at least one guide roller. Furthermore, the sensor device comprises a second safety sensor, which generates an error signal when the at least one sensor roller exceeds a maximum distance from the at least one guide roller. Should a malfunction occur or the supply roll be completely unwound, Thus, an error signal is generated in these developments, by the example. on Warning signal is generated, which warns the operator.
  • the sensors or safety sensors may e.g. through mechanical switches are formed, which are triggered by the moving sensor roller.
  • a particularly simple and reliable reaction sees optical sensor elements, e.g. Photocells, before. Due to the non-contact operation of this optical Sensors, the movement of the sensor roller is not affected, resulting in a further constant maintenance of the tension of the film material leads.
  • proximity switches are sensors or safety sensors provided that ensure a simple and reliable construction, which is also pollution-independent.
  • the trigger device and the operating components shut off, which further process the film. If a malfunction occurs or if the supply roll is completely unwound, is in this way the Promotion interrupted until normal operation is possible again.
  • the trigger device and the operating components shut off, which further process the film. If a malfunction occurs or if the supply roll is completely unwound, is in this way the Promotion interrupted until normal operation is possible again.
  • Another embodiment is at a maximum distance of at least a sensor roller of the at least one guide roller of the motor of the supply roll, shut off the trigger and the operating components that the Process film. When exceeding a maximum distance is obvious a malfunction in the removal of the film material, so that in addition the engine of the supply roll must be turned off to another feed to prevention.
  • the error signal which is generated by the respective safety sensors, at least for shutdown the extraction device and those operating components used, which further process the supplied film.
  • the extraction device is operated continuously. Also at a cyclic operation of the trigger device is the device according to the invention or the inventive method advantageously used, as by the device of the invention and the inventive method even then it is ensured that the tension of the film material before the extraction device remains constant.
  • the device according to the invention in several parallel feeders be used several times.
  • the device according to the invention in several parallel feeders be used several times.
  • the motors of the supply rolls independently controlled by a common control.
  • FIGS 1 and 2 show a first embodiment of the device according to the invention.
  • 1 denotes a supply roll having a diameter D, which coincides with progressively reduced. From the supply roll 1, the film 15 is unwound and in a consumption sensor 81 around a fixed guide roller 19 and a movable sensor roller 21 guided.
  • 67a and 67b show schematically a Discharge device, e.g. Rolls which are frictionally connected to the film and operated at a speed or a clock, the other Foil processing corresponds.
  • the actual design of the motors 3 and 69 of the Supply roll 1 and the deduction device 67a, 67b is not of interest here, so that the motors are shown only schematically.
  • the movement of the foil material is indicated by the arrow 5.
  • the sensor roller 21 is in guides 41a and 41b mounted, which are provided vertically in a guide frame 31. In extension the axis of the sensor roller is a trigger 39 is provided, the movement the sensor roller 21 passes up or down at light barriers 43, 45, 47 and 49.
  • the sensors are connected via a signal line to the controller 9 of the motor 3 the supply roll 1 connected.
  • the upward and downward movement of the sensor roller 21 is indicated by the arrows 35 and the rotational movement of the supply roll 1 is through the arrow 7 shown.
  • further components may be provided in front of the extraction device 67a, 67b provided for processing the film, e.g. a welding device for forming welds in the sheet material, a punching device for Formation of holes, or the like.
  • FIG. 2 a shows an operating state of the first embodiment of the invention Device shown in which the sensor roller 21 is its lowest state in Normal operation, reached at the level of the sensor 47.
  • FIG. 2b shows an intermediate state, in which the sensor roller 21 between the sensors 45 and 47 upwards emotional.
  • Figure 2c shows an operating condition in which the sensor roller 21 their highest point in normal operation, at the level of the sensor 45, reached.
  • the discharge device 67a, 67b pulls on the film material 15 in the direction of arrow 5 due to the frictional engagement, the between the trigger and the film is present.
  • the sensor roller 21 in the guides 41 a and 41b upwards. If the sensor roller 21 reaches the height of the upper optical sensor (as shown for example in Figure 2c), the trigger 39 triggers the photocell 45 from. This gives a signal to the controller 9, which in turn the motor 3 of the supply roll. 1 turns on, so that the supply roll 1 rotates in the direction 7. This way will fed new film material 15 and the sensor roller 21 moves in the guides 41a, 41b down.
  • the trigger 39 When the trigger 39 reaches the sensor 47, it becomes Photocell triggered. A signal is given to the controller 9, the motor 3rd Turn off the supply roll 9, so that the further film supply is omitted (FIG 2a). Moved by the ongoing withdrawal operation of the discharge device 67a, 67b Accordingly, the sensor roller 21 back up, as shown in FIG 2b is shown. Upon reaching the height of the sensor 45, as described above, turn the motor 3 of the supply roll 1 turned on.
  • the discharge device 67a, 67b can be operated continuously or in cycles. In cyclic operation, the sensor roller 21 also moves in cycles while moving upwards.
  • the take-off device 67a, 67b works further.
  • the sensor roller 21 moves upward.
  • the trigger 39 passes the Photocell 45.
  • no further foil can be supplied.
  • the sensor roller 21 moves accordingly upwards. If she reaches an upper one Security sensor 43, again e.g. a photocell, then becomes an error signal generated and all components of the Folienzu slaughterleton anatomy including the trigger device 67a, 67b are turned off. It can e.g. an acoustic and optical signal can be generated in addition, the operator on it indicates that a new supply roll 1 must be inserted.
  • the safety sensor Of course, 43 also responds when, due to another malfunction, the film delivery is interrupted, e.g. if the supply roll is jammed.
  • a malfunction of the controller 9 or of the motor 3 can lead to that the supply roll 1 is not switched off in time when the sensor roller 21st with the trigger 39 passes the sensor 47.
  • the sensor roller 21 then continues in the guides 41 a, 41 b down to a lower security sensor 49, e.g. again, e.g. a photocell.
  • This photocell emits a signal that the complete system including the supply roll 1 and the withdrawal device 67a, 67b turns off, e.g. by interrupting the power supply.
  • an audible or visual signal is given to the operating personnel indicates the corresponding malfunction.
  • the sensor 49 also comes into action if e.g. the film material 15 is torn before reaching the sensor roller 21. Even then, the sensor roller 21 moves downward past the sensor 47 until to the sensor 49 and the operator can be warned by the error signal become.
  • At the lower end of the guide rails 41a, 41b or at a corresponding provided support the sensor roller 21 in its downward movement stopped.
  • the shown Embodiment has two parallel film strands, which before the Discharge device 68, 70 are brought together.
  • Such parallel film feeds are e.g. necessary if two foils are welded together, e.g. around To form foil bag.
  • the films may be e.g. Aluminum laminate films his. Upstream of the discharge device 68, 70 or downstream of which, e.g. a welding device not shown may be provided.
  • each consumption sensor 80, 82 each comprise three fixed deflection rollers 20 and 24 and two movable sensor rollers 22 and 26.
  • the movable sensor rollers 22 and 26 are each interconnected by connections 40 and 42, so that the vertical movement of the sensor rollers 22 and 26 of each consumption sensor 80 and 82 takes place simultaneously.
  • the vertical movements of the sensor rollers 22, 26 are indicated by arrows 36, 38. 44 and 50, the safety sensors of the upper consumption sensor 80 and 60, 66 denote the safety sensors of the lower consumption sensor 82. 46 and 48, the sensors at the upper and lower deflection points of the sensor rollers 22 of the consumption sensor 80 and 62, 64, the corresponding sensors of the lower storage sensor 82nd
  • the optical sensors are designed, for example, as light barriers. Not shown in Figure 3 are the signal lines that connect the individual photocells with the controller 10 for the motors 6, 8 of the supply rolls 2, 4. 28, 30 denote pulleys for the individual sheets 16, 18 before they are withdrawn from the common puller 68, 70 which is driven by the motor 72. 32, 34 denote fixed supports for the deflection rollers 20 and 24 of the individual consumption sensors.
  • FIG. 4 shows the consumption sensor 80 in detail.
  • the structure of the consumption sensor 82 is identical. Both the consumption sensors 80, 82 and the motors 6.8 of the individual foil strands work independently of each other.
  • FIG. 4 shows the signal paths 52, 58, from the optical safety sensors 44, 50 to an error signal F lead when the connection 40 between them on the safety sensors 44 or 50 passes by. The operation of the optical safety sensors for Shutdown of the corresponding operating components corresponds to the first Embodiment described above.
  • FIG. 4 shows the signal paths 54, 56 of the sensors 46, 48, the on or off of the engine 6 of the supply roll 2 in Figure 3 lead.
  • the engine 6 is the Supply roll 2 is turned on when the height of the sensor roller 22, the optical sensor 46 happens, and the motor 6 is turned off when the height of the sensor roller 22 passes the sensor 48. Due to the arrangement of the fixed guide rollers 20 and the sensor rollers 22 and by the provision of three guide rollers 20th and two sensor rollers 22 ensures a secure guidance of the film, as the Position of the sensor rollers 22 is self-stabilizing.
  • the first embodiment of the Figures 1 and 2 are used for feeding a plurality of film strands, if a corresponding number of consumption sensors is provided.
  • a single consumption sensor as e.g. is shown in Figure 4 and in duplicate Embodiment shown in Figure 3, for the supply of a single sheet strand be used.
  • the applied force is constant and the voltage the film in front of the discharge device 67a, 67b, 68, 70 is constant. So will one ensures high-precision feeding of the film material, even at very high Operating speeds are possible in film processing lines nowadays are common.

Landscapes

  • Mechanical Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Advancing Webs (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Controlling Sheets Or Webs (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Physical Deposition Of Substances That Are Components Of Semiconductor Devices (AREA)
  • Making Paper Articles (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Registering Or Overturning Sheets (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Claims (23)

  1. Un dispositif d'alimentation en feuilles, pour fournir une feuille pour la fabrication de sachets en feuilles, avec un rouleau de stockage (1, 2, 4) entraíné par moteur, pour amener du matériau de feuille (15, 16, 18) avec une performance d'alimentation, un dispositif d'extraction (67a, 67b, 68, 70), pour extraire le matériau en feuille avec une performance d'extraction, et un capteur de consommation (80, 81, 82), disposé entre le rouleau de stockage (1, 2, 4) et le dispositif d'extraction (67a, 67b, 68, 70), capteur de consommation à l'aide duquel l'entraínement du rouleau de stockage (1, 2, 4) est commandé en fonction de la consommation de matériau en feuille, le capteur de consommation (80, 81, 82) comprenant les éléments suivants :
    au moins un rouleau de renvoi (19, 20, 24) localement fixe,
    au moins un rouleau de capteur (21, 22, 26), monté et disposé de manière à ce que son espacement, par rapport au moins un rouleau de renvoi (19, 20, 24), soit modifié de manière correspondant à la différence entre les performances d'alimentation et les performances d'évacuation en matériau en feuille (15, 16, 18) et de manière à assurer une tension constante dans le matériau en feuille, en amont du dispositif d'extraction, et
    un dispositif capteur, détectant la modification d'espacement et qui, en cas de descente au-dessous d'un premier espacement prédéterminé, augmente la vitesse de l'entraínement (3, 6, 8) du rouleau de stockage (1, 2, 4) et, en cas d'un dépassement d'un deuxième espacement prédéterminé, diminue la vitesse de l'entraínement, avec
       un premier capteur de sécurité (43, 44, 60) qui produit un signal de défaut, lorsque le au moins un rouleau de capteur (21, 22, 26) descend au-dessous d'un espacement minimal par rapport au moins un rouleau de renvoi (19, 20, 24) et avec
       un deuxième capteur de sécurité (49, 50, 66) produisant un signal de défaut, lorsque l'au moins un rouleau de capteur (21, 22, 26) dépasse un espacement minimal par rapport au premier rouleau de renvoi (19, 20, 24).
  2. Dispositif selon la revendication 1, caractérisé en ce que le dispositif de capteur est réalisé de manière qu'il se mette hors service en cas de dépassement de l'espacement (3, 6, 8) prédéterminé vis à vis du rouleau de stockage (1, 2, 4).
  3. Dispositif selon l'une des revendications 1 et 2,
       caractérisé par
       un dispositif de guidage (21a, 21b) le long duquel le au moins un rouleau de capteur (21, 22, 26) se déplace pendant la modification de l'espacement.
  4. Dispositif selon la revendication 3,
       caractérisé en ce que
       le dispositif de guidage est orienté sensiblement verticalement.
  5. Dispositif selon l'une des revendications 1 à 4,
       caractérisé en ce que
       le rouleau de capteur (21, 22, 26) est chargé par un poids additionnel.
  6. Dispositif selon l'une des revendications 1 à 5,
       caractérisé en ce que
       le nombre des rouleaux de renvoi (19, 20, 24) fixes dépasse d'un le nombre des rouleaux de capteur (21, 22, 26), et le matériau en feuille est placé, alternativement, autour des rouleaux de renvoi et du au moins un rouleau de capteur.
  7. Dispositif selon la revendication 6,
       caractérisé en ce qu'au moins deux rouleaux de capteur (22, 26) sont prévus, reliés ensemble.
  8. Dispositif selon l'une des revendications 1 à 7,
       caractérisé en ce que
       le dispositif capteur comprend un premier capteur (45, 46, 62) délivrant un signal pour l'accélération de l'entraínement (3, 6, 8), lorsque l'espacement du au moins un rouleau de capteur (21, 22, 26), par rapport au au moins un rouleau de renvoi (19, 20, 24), descend en dessous d'un premier espacement prédéterminé.
  9. Dispositif selon l'une des revendications 1 à 8,
       caractérisé en ce que le dispositif capteur comprend un deuxième capteur (47, 48, 64) délivrant un signal de ralentissement de l'entraínement lorsque l'espacement du au moins un rouleau de capteur (21, 22, 26), par rapport au au moins un rouleau de renvoi (19, 20, 24), dépasse le deuxième espacement prédéterminé.
  10. Dispositif selon l'une des revendications 1 à 9,
       caractérisé en ce que
       le capteur de sécurité comprend un interrupteur de proximité.
  11. Dispositif selon l'une des revendications 1 à 9,
       caractérisé en ce que
       le capteur de sécurité comprend un élément capteur optique.
  12. Dispositif selon l'une des revendications 1 à 11,
       caractérisé en ce qu'
       au moins l'un des premier et deuxième capteurs comprend un interrupteur de proximité.
  13. Dispositif selon l'une des revendications 1 à 12,
       caractérisé en ce qu'
       au moins l'un, du premier et du deuxième capteur, comprend un élément de capteur optique.
  14. Dispositif selon l'une des revendications 11 et 13,
       caractérisé en ce que
       l'élément de capteur optique est une cellule photoélectrique.
  15. Dispositif selon l'une des revendications 1 à 14,
       caractérisé en ce que
       le signal de défaut est utilisé au moins pour la mise hors service du dispositif d'extraction (67a, 67b, 68, 70) et de composants fonctionnels qui assurent la continuation de du traitement de la feuille amenée.
  16. Dispositif selon l'une des revendications 1 à 15,
       caractérisé en ce que
       le dispositif d'extraction (67a, 67b, 68, 70) est entraíné de façon cadencée.
  17. Dispositif selon l'une des revendications 1 à 16,
       caractérisé en ce qu'
       au moins deux rouleaux de stockage (2, 4) entraínés par moteur et au moins deux capteurs de consommation (80, 82) sont prévus, de sorte que l'on peut amener au moins deux tronçons de feuille (16, 18).
  18. Dispositif selon la revendication 17,
       caractérisé en ce que
       les moteurs (6, 8) des rouleaux de stockage (2, 4) sont commandés par une unité de commande (10) commune, qui reçoit les signaux des dispositifs capteurs appartenant aux capteurs de consommation (80, 82) respectifs.
  19. Procédé d'alimentation en matériau en feuille dans la fabrication de sachets en feuille, dans lequel du matériau en feuille (15, 16, 18) est amené depuis un rouleau de stockage (1, 2, 4) entraíné par moteur, suite à cela est guidé autour d'au moins un rouleau de renvoi (19, 20, 24) fixe et au moins un rouleau de capteur (21, 22, 26), qui veille à assurer une tension mécanique constante dans le matériau en feuille, et dont l'espacement par rapport au au moins un rouleau de renvoi (19, 20, 24) est variable et, enfin, est extrait par un dispositif d'extraction (67a, 67b, 68, 70), où
       la vitesse de l'entraínement (3, 6, 8) du rouleau de stockage est augmentée lorsque l'espacement, entre le rouleau de capteur et le rouleau de renvoi, descend au-dessous d'un premier espacement prédéterminé,
       la vitesse de l'entraínement (3, 6, 8) est diminuée lorsque l'espacement, entre le rouleau de capteur et le rouleau de renvoi, dépasse un deuxième espacement prédéterminé,
       un signal de défaut est produit par un premier capteur de sécurité, lorsque l'au moins un rouleau de capteur descend en dessous d'un espacement minimal vis-à-vis du au moins un rouleau de renvoi, et
       un signal de défaut est produit par un deuxième capteur de sécurité, lorsque l'au moins un rouleau de capteur dépasse un espacement maximal par rapport au moins un rouleau de renvoi.
  20. Procédé selon la revendication 19,
       caractérisé en ce que
       l'entraínement du rouleau de stockage (1, 2, 4) est mis hors service lorsque l'espacement, entre le rouleau de capteur et le rouleau de renvoi, dépasse le deuxième espacement prédéterminé.
  21. Procédé selon l'une des revendications 19 ou 20,
       caractérisé en ce que,
       en cas de dépassement de l'espacement minimal du rouleau de capteur vis-à-vis du rouleau de renvoi, au moins le dispositif d'extraction (67a, 67b, 68, 70) et les composants fonctionnels, qui assurent la continuation de du traitement de la feuille, sont mis hors service.
  22. Procédé selon l'une des revendications 19 ou 21,
       caractérisé en ce que,
       en cas de dépassement de l'espacement maximal, au moins l'entraínement (3, 6, 8) du rouleau de stockage, le dispositif d'extraction (67a, 67b, 68, 70) et les composants fonctionnels, qui assurent la continuation du traitement de la feuille, sont mis hors service.
  23. Procédé selon l'une des revendications 19 ou 22,
       caractérisé en ce que
       la feuille est extraite de façon cadencée, au moyen du dispositif d'extraction (67a, 67b, 68, 70).
EP99107471A 1998-06-03 1999-04-29 Dispositif et méthode pour alimenter des films Expired - Lifetime EP0962412B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI9930499T SI0962412T1 (en) 1998-06-03 1999-04-29 Device and method for feeding film

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19824798A DE19824798A1 (de) 1998-06-03 1998-06-03 Vorrichtung und Verfahren zum Zuführen von Folien
DE19824798 1998-06-03

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EP0962412A2 EP0962412A2 (fr) 1999-12-08
EP0962412A3 EP0962412A3 (fr) 2000-07-05
EP0962412B1 true EP0962412B1 (fr) 2003-11-26

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EP (1) EP0962412B1 (fr)
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BG (1) BG64001B1 (fr)
BR (1) BR9902930A (fr)
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DE (2) DE19824798A1 (fr)
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TR (1) TR199901229A3 (fr)
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UA (1) UA61087C2 (fr)
YU (1) YU23999A (fr)
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ZA993716B (en) 1999-12-02
SK73399A3 (en) 1999-12-10
CZ298778B6 (cs) 2008-01-23
SA04250018B1 (ar) 2008-01-13
CA2273395C (fr) 2003-01-07
CN1131162C (zh) 2003-12-17
TW438702B (en) 2001-06-07
BR9902930A (pt) 2000-03-21
HU9901834D0 (en) 1999-08-30
CZ192199A3 (cs) 2000-01-12
YU23999A (sh) 2001-03-07
HUP9901834A2 (hu) 2000-06-28
ES2210885T3 (es) 2004-07-01
PL190254B1 (pl) 2005-11-30
US20010013561A1 (en) 2001-08-16
TR199901229A2 (xx) 1999-12-21
HK1024213A1 (en) 2000-10-05
SI0962412T1 (en) 2004-04-30
BG103447A (en) 1999-12-30
CN1242328A (zh) 2000-01-26
DE59907834D1 (de) 2004-01-08
KR100317004B1 (ko) 2001-12-22
ID22731A (id) 1999-12-09
US6340130B2 (en) 2002-01-22
EP0962412A2 (fr) 1999-12-08
EP0962412A3 (fr) 2000-07-05
RU2167798C2 (ru) 2001-05-27
CA2273395A1 (fr) 1999-12-03
BG64001B1 (bg) 2003-09-30
KR20000005847A (ko) 2000-01-25
UA61087C2 (uk) 2003-11-17
HRP990165A2 (en) 2000-10-31
DE19824798A1 (de) 1999-12-09
PL333523A1 (en) 1999-12-06
SA99200494B1 (ar) 2006-10-11
ATE255056T1 (de) 2003-12-15
DK0962412T3 (da) 2004-03-29
JP3784996B2 (ja) 2006-06-14
TR199901229A3 (tr) 1999-12-21
PT962412E (pt) 2004-04-30
JP2000016653A (ja) 2000-01-18
HUP9901834A3 (en) 2001-01-29

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