EP2200788B1 - Dispositif et procédé de guidage d'une bande de matière - Google Patents

Dispositif et procédé de guidage d'une bande de matière Download PDF

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Publication number
EP2200788B1
EP2200788B1 EP08828979.8A EP08828979A EP2200788B1 EP 2200788 B1 EP2200788 B1 EP 2200788B1 EP 08828979 A EP08828979 A EP 08828979A EP 2200788 B1 EP2200788 B1 EP 2200788B1
Authority
EP
European Patent Office
Prior art keywords
web
material web
longitudinal cutting
cutting device
longitudinal
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.)
Active
Application number
EP08828979.8A
Other languages
German (de)
English (en)
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EP2200788A1 (fr
Inventor
Holger Frische
Werner Beckonert
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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Publication of EP2200788A1 publication Critical patent/EP2200788A1/fr
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Publication of EP2200788B1 publication Critical patent/EP2200788B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/02—Means for moving the cutting member into its operative position for cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/02—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a stationary cutting member
    • B26D1/03—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a stationary cutting member with a plurality of cutting members
    • B26D1/035—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a stationary cutting member with a plurality of cutting members for thin material, e.g. for sheets, strips or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D9/00—Cutting apparatus combined with punching or perforating apparatus or with dissimilar cutting apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D2007/0012—Details, accessories or auxiliary or special operations not otherwise provided for
    • B26D2007/0068—Trimming and removing web edges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/18—Means for removing cut-out material or waste
    • B26D7/1845—Means for removing cut-out material or waste by non mechanical means
    • B26D7/1863—Means for removing cut-out material or waste by non mechanical means by suction
    • 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
    • B65H2301/41—Winding, unwinding
    • B65H2301/414—Winding
    • B65H2301/4148—Winding slitting
    • B65H2301/41487—Winding slitting trimming edge

Definitions

  • the invention relates to a device according to the preamble of claim 1 and a method according to the preamble of claim 12 for guiding a material web which uses at least one longitudinal cutting means for adjusting the width of the material web, with which the web along its direction of movement (z) separable is.
  • Devices of this type are known. They are typically found downstream of equipment or machines that make or at least process the webs in a manner that results in variations in the width of the web.
  • the first category (production of webs) includes, for example, film extrusion lines in which variations in the format of the extruded films are inherent in the system. Especially with so-called cast film systems, these fluctuations are not negligible. Even with blown film equipment, there are fluctuations in the diameter of the bubble, which of course leads to variations in the width of the flattened or cut film. Even when cutting such a film fluctuations in the cutting line can occur, which also makes a trim edge of the film web necessary.
  • the second category (processing of webs) includes machines, for example laminating machines and other machines, which have a great influence on the shape of the material web.
  • Downstream of such devices for guiding and adjusting the width of the material web are often winding points, which wind the web to a winding.
  • the device for guiding and adjusting the Width of the web also structurally combined with the winding device or part of the winding device.
  • a device may also be located in the web transporting direction downstream of the device for guiding and adjusting the width of the material web which further processes the web in some way. This can happen for example through a printing press.
  • material webs of plastic, preferably plastic film, or paper are usually transported by the transport device.
  • the width of the web is adjusted by trimming it.
  • one or both edges of the web can be “cut off”.
  • the expert calls this measure “edge trimming”.
  • knife blades or wedges are known as longitudinal cutting means.
  • a jet of a medium such as water which is for example of the EP1007280 B1 is taught.
  • Even a welding agent such as a laser comes as a cutting tool in question.
  • these cutting means have the advantage not to wear. However, they have the disadvantage of high media or energy consumption.
  • the WO 2005/105635 A1 shows a device for guiding a material web, which has at least one longitudinal cutting means for adjusting the width of the material web, with which the web along its Movement direction (z) in at least two partial webs, one of which is the edge strips, is separable.
  • the edge strip is passed to a gripping and transporting device and separated at a later time, by means of a cutting device.
  • pamphlets US 3762250 and DE 9203472 U1 show devices with slitters and beyond sensors for web observation.
  • the DE9203472U shows a device according to the preamble of claim 1 and a method according to the preamble of claim 12.
  • the material web can be deflected laterally away from the knife edge, wherein the knife edge no longer performs any edge trimming. This can cause problems in the further processing of the web. Also machine downtime can not be excluded, which can cause high costs.
  • the object of the present invention is to propose a device which avoids the disadvantages described above.
  • the width of the web is detected by a sensor.
  • the reflection or transmission of the film eg optically
  • the cutting means is deactivated so moved away in the case of a knife from the cutting position. This avoids that the knife obstructs the run of the material web when it comes by an increase in its width back into the cutting area. Without removing the knife from the cutting position, the widening web would run against the blunt flank of the knife and "build up" on this, as it may occur in devices of the prior art.
  • a cross-cutting device is provided in addition to the longitudinal cutting device.
  • the task of the cross-cutting device is namely to provide a partial web (edge strip) after reentry of the material web in the region of the longitudinal cutting device, with a cross section. Since the knife of the longitudinal cutting device, only after renewed exceeding the nominal width of the material web is guided in this, the partial webs (edge strip and main film web) are still connected to each other via a film web. In order for at least two separate partial webs to form, a cross section of a partial web (in this case edge strips) must take place.
  • the at least one transverse cutting device is mounted further downstream than the longitudinal cutting device and provided with a control unit.
  • This control unit calculates the time difference in which the knife of the cross cutting device must enter the material web to perform the cross section when the beginning of the longitudinal section has arrived at the cross section.
  • the time difference, which must have the cross section compared to the "new" longitudinal section, is mainly dependent on the conveying speed of the material web.
  • only one entry or exit of web material in the region of a longitudinal cutting device is detected by a sensor.
  • the knife Upon entering the web material in the region of a slitter, the knife is inserted into the web. This process is called “activation” of the slitter.
  • activation When the web material emerges from the region of the longitudinal cutting device, the knife is pulled out of the material web. This process is called “deactivation” of the slitter.
  • the longitudinal cutting device is activated only when the material web already protrudes beyond the potential cutting region of the longitudinal cutting device, the so-called effective region of the longitudinal cutting device.
  • the proportion of the edge region, which the expert calls "waste" is below 10% of the total material web width.
  • the edge strip (or the partial web) is no longer connected to the film web in the web running direction behind the longitudinal cutting device and can be supplied to the device for removing a partial web, which preferably consists of a suction device.
  • An advantage of providing the cross cutting device is that the cross section for separating the edge strip from the film web need not be made manually, which is too complicated during machine operation and therefore causes machine downtime.
  • the above-mentioned suction device for discharging a partial web can, in a particularly preferred embodiment, consist of a suction proboscis which is adjustably mounted perpendicular to the transport direction of the material web.
  • the edge strip can be optimally removed from the remaining material web.
  • the individual partial webs are transported synchronously via a conveyor roller. Subsequently, a partial web (here the edge strip) is removed from the suction device.
  • the longitudinal cutting device can be folded away with a component orthogonal to the material web or to the plane of the material web surface.
  • optical sensors When selecting the sensors that provide the readings that indicate the width or presence of the web, it is beneficial to use optical sensors. If these are mounted and adjusted to measure the transmission or reflection of light, advantageously sensors will be used which can measure the intensity of the light falling on the effective area of the sensor. For sensors measuring light reflection for these purposes, often the radiation source and the sensor will be mounted on one side of the web. To implement such systems, integrated light source and sensor devices are available on the market.
  • This Gutsignal is at least significantly weaker when material of the web is on the path of the light between the light source and the sensor. From this difference in intensity, a very useful measurement signal can be obtained.
  • Fig. 1 shows the front view and Fig. 2 the side view along the section AA of a device according to the invention.
  • the material web 1 is guided via a guide roller 2 to a spreader roller 22, which serves for stretching the material web 1 transversely to the transport direction z.
  • the material web 1 is transported downstream to the first longitudinal cutting devices 5a, 5b, which divide the material web 1 into individual advantages 1a, 1b, 1c and the edge region or edge section 1a ', 1b'.
  • the longitudinal cutting devices 5a, 5b are mounted on a cutter bar 18 and laterally displaceable on this.
  • the longitudinal cutting devices 5a, 5b consist of a holder, which can each accommodate two blade pushers, the respective lower blade cutting the material web 1.
  • the upper blade can be replaced by a simple pusher 8, the worn lower blade during operation.
  • the lateral position of the longitudinal cutting devices 5a, 5b can be reproducibly adjusted by means of scale units which are mounted on the cutter bar 18.
  • the knife bar 18 can be pivoted with the longitudinal cutting devices 5a, 5b for easier feeding or threading of the material web 1 at the start of production pneumatically through the cylinder 19 orthogonal to the material web 1.
  • the cutter bar includes a pivoting motion that also includes components in the direction of the solder on the web surface (in FIG. 3 y-direction) is pivoted away from the material web 1.
  • a pivoting motion that also includes components in the direction of the solder on the web surface (in FIG. 3 y-direction) is pivoted away from the material web 1.
  • a knife bar of course, only one knife or several knives could be individually swung away in such a way. It is important that the movement or movements encourage the knives out of the plane of the web in the area of the cut.
  • Each longitudinal cutting device 5a, 5b is provided with a spring-loaded fender for Secured protection of the cutting blades. When swinging the knife bar, the cutting blades disappear inside the mudguard.
  • the blade slider 8 is additionally equipped with a pneumatic cylinder 7, with which the blades can be moved away from the material web 1 or toward the material web 1.
  • the driving in of the blade into the material web 1 is referred to below as “activation” and the driving away with “deactivation” of the longitudinal cutting devices 5a.
  • the pneumatic cylinder 7 is controlled by a control device comprising two sensors 3a, 3b, which are mounted above the longitudinal cutting devices 5a. These are, for example, optical sensors, for example infrared sensors. But tactile sensors are also conceivable here. These sensors 3a, 3b detect whether the width of the edge strip 21 is greater than the distance between sensor 3a and 3b.
  • a transverse pivoting 21 of the cutter bar 18 is attached.
  • the longitudinal cutting devices 5a, 5b equipped with a L Lucasschangtechnik 20 so that the material web 1 is not always performed on the same position of the blade.
  • the blades of the slitter 5 a, 5 b are equipped with a heater, since tests have shown that heated blades give a better cut quality.
  • This assembly consists of two plates 15, which are connected to one another via cross members, and is mounted rotatably about the axis 13 to the lateral frame 25 of the device.
  • the rubberized preferred roller 9 which is mounted between the plates 15, are pressed against the lower guide roller 4.
  • two laterally displaceable discharge devices 11 for the edge strips 1a ', 1b' are arranged.
  • This can be suction funnels, but also purely mechanical pick-off devices.
  • the lateral positioning of the discharge devices 11 can be done via a scale.
  • a suction hose 14 and a not shown here associated exhaust fan are mounted.
  • a cross-cutting device 10 is movably mounted. The knife of the cross-cutting device 10 can be moved via a pneumatic cylinder 12 in the direction of the material web 1. The material web 1 then passes over a further guide roller, to a spreader roller 17, via cooling rollers 24 and a contact roller to the web winding 23rd
  • the material web 1 can pass outside the region of the longitudinal cutting devices 5a.
  • the absence of the edge region 21 is detected by the sensor 3b, which sends a signal to the longitudinal cutting means 5a, so that the pneumatic cylinder 7 pulls the blade with the lower blade holder 8 from the material web 1. Now no edge strip 21 is separated from the web 1 more.
  • this 1 again enters the region of the longitudinal cutting devices 5a.
  • the sensor 3a registers the shrinkage of the material web 1 in the edge region. If the edge region is large enough so that an edge strip 21 can be cut off, this is registered by the sensor 3b and a signal from this 3b is sent to the longitudinal cutting devices 5a. Then, the blade with the lower blade holder 8 is guided to the material web 1 with the pneumatic cylinder 7 and a longitudinal section performed.
  • the edge strip 21 is still connected to the benefit 1a, 1c and now runs together with this 1a, 1b, 1c further downstream in the direction of the roll 23.
  • the edge strip 21 from the benefits 1a, 1c to separate and insert into the discharge device 11 can, shortly after immersion of the blade of the longitudinal cutting device 5a in the web 1, a cross section of the edge strip 21 by the cross-sectional device 10 done.
  • the cross-cutting device 10 is supplied with a signal from the control device, which takes place with a time delay to the entry of the blade of the longitudinal cutting devices 5a in the web 1.
  • the cross cutting blade of the cross cutting device 10 is connected to the pneumatic cylinder 12 in the direction of Material web 1 moves. By the blade of the cross-cutting blade of the edge strip 21 is slowed down in its movement downstream.
  • FIGS. 3 to 5 show a sketched procedure of an embodiment of a method according to the invention at three different times.
  • FIG. 1 the situation is shown at a first time point A.
  • the blades 31 are in their cutting position 35. They have severed the web 1 along the cutting line 32.
  • the web is moved in the direction z indicated by the arrow.
  • the dashed line 33 indicates which path the cutting line continues to take when the blades 31 remain in their cutting position as the web is moved further.
  • the sensor 29 to see. He is the cutting blades 31 upstream of the web running direction. Already in FIG. 3 Therefore, it can be foreseen that the area of narrower web 34 first reaches sensor 29 and then only position 35 of blades 31.
  • FIG. 4 shows the situation that arises at this second time.
  • the narrower web section 34 has already reached the sensor 29. This has activated an actuator, not shown, which pulls the blades 31 from its cutting position.
  • This circumstance will be in FIG. 4 symbolized by the dotted lines 30, which represent the emerging from the web knives.
  • This "emergence process" can happen so quickly that part of the in FIG. 4 dashed line 30 is no longer severed. In this case, however, there could be complications, since the edge strips 21 then hang on the web and are not completely separated. If the edge strips 21 of a discharge 11th be fed as they are in the FIGS. 1 and 2 shown, this may lead, inter alia, to the demolition of the edge strips 21 and thus damage to the web edges. Therefore, it seems advantageous to leave the knife or blades 31 in a cutting-active position 35 until they actually reach the constriction of the web 1 and completely separate the edge strip or strips 21.
  • FIG. 5 illustrates Another very advantageous possibility: to bring the knives 31 back into cutting position (best by a movement that contains at least components in the direction of the solder on the plane of the web 1, spatial direction y), if wider locations of the web already the one or more knives 31 (at least one knife or cutting means will be needed) will have passed.
  • FIG. 5 illustrated situation: The edge strips 21 initially remain connected via web material which is located between the dipping point 35 of the knives 31 and the center of the area of narrower foil web. After dipping the knives in the web, they separate again the web 1 from the edge strips 21, which is indicated by the line 32 in the lower part of the FIG. 5 is shown.
  • the beginning of the edge strip 31, which is partially separated after a region of narrower film, is first fed to further processing by following the web 1.
  • further processing will initially consist of winding on a web winding 23.
  • the edge strip 21 is severed by a cross cutting cut and the leading end of the severed edge strip 21 is received by a discharge device 11.
  • One endeavor can be to keep the length of the part of the marginal strip, which is wound with on the winding, small, so that the cross cutting cut is made directly at the beginning or shortly after the beginning of the marginal strip.
  • the following means can advantageously be used for the technical implementation of the methods presented above:
  • a controller / computer communicating with at least a portion of the aforementioned machine components and configured to perform the method. This is often computer-implemented, preferably done with a program.
  • the relevant computer program or suitable data sequences can be made available to a control device / computer on a data medium or as a data stream (eg by e-mail).
  • Knife or knife actuators which move the knives out of the web plane are advantageous for carrying out the methods outlined above.
  • Good here is a movement that contains at least one component which is orthogonal to the plane of the web in the cutting area (y-direction). This can be a pivoting movement. However, a translation is also conceivable. This can also be exactly orthogonal to the orbital plane.
  • the discharge device can advantageously be equipped with a suction device, so that it sucks the film to be discharged. Some (at least one), if not all, longitudinal and transverse cutting operations and the associated blade movements should be able to be done on-the-fly, that is, while the machine is running.

Claims (19)

  1. Dispositif de guidage d'une bande de matériau (1), ce dispositif comprenant, pour le réglage de la largeur de la bande de matériau (1), au moins un moyen de coupe longitudinale (5a, 5b), avec lequel la bande (1) peut être découpée le long de sa direction de déplacement (z) en au moins une bande de film principale (1a, 1b, 1c) et au moins une bande de bord (1a', 1b'),
    comprenant
    • au moins un capteur, avec lequel (3a, 3b) des valeurs de mesure peuvent être enregistrées, à partir desquelles la largeur de la bande (1) peut être déterminée,
    • au moins un dispositif d'actionnement pour l'au moins un moyen de coupe longitudinale (5a, 5b) avec lequel le moyen de coupe longitudinale (5a, 5b) peut être activé et désactivé,
    ce moyen de coupe longitudinale (5a, 5b) pouvant être contrôlé sur la base de signaux de l'au moins un capteur,
    caractérisé par
    au moins un dispositif de coupe transversal (10) pour la découpe d'une bande de bord (1a', 1b'), ce dispositif de coupe transversale pouvant être activé par un dispositif de commande,
    le dispositif de coupe transversale (10) étant monté plus loin en aval que les moyens de coupe longitudinale (5a, 5b) et
    le dispositif de commande étant conçu pour calculer la différence de temps dans laquelle la lame du dispositif de coupe transversale (10) doit entrer dans la bande de matériau afin d'effectuer la coupe transversale, lorsque le début d'une coupe longitudinale est arrivé à l'endroit de la coupe transversale.
  2. Dispositif selon la revendication précédente,
    caractérisé en ce que
    la bande de matériau (1) peut être décomposée au moyen d'un dispositif de coupe longitudinale (5a, 5b) en au moins deux bandes partielles (1a, 1a', 1b, 1b', 1c), au moins une bande partielle (1a, 1a', 1b, 1b', 1c) étant constituée d'une zone de bord (21) de la bande de matériau (1).
  3. Dispositif selon l'une des revendications précédentes,
    caractérisé par
    un dispositif de commande avec lequel des signaux pour l'activation ou la désactivation du dispositif de coupe longitudinale (5a, 5b) peuvent être envoyés à celui-ci (5a, 5b).
  4. Dispositif selon l'une des trois revendications précédentes,
    caractérisé en ce que
    la lame du dispositif de coupe transversale (10) peut être déplacé au moyen d'un vérin pneumatique (12) en direction de la bande de matériau (1).
  5. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que
    au moins un dispositif d'évacuation (11) est prévu pour l'évacuation d'une bande partielle (1a, 1a', 1b, 1b', 1c).
  6. Dispositif selon la revendication précédente,
    caractérisé en ce que
    le dispositif d'évacuation (11) pour l'évacuation d'une bande partielle (1a, 1a', 1b, 1b', 1c) comprend un ventilateur avec lequel un flux d'air peut être généré, qui aspire la bande partielle.
  7. Dispositif selon l'une des revendications précédentes,
    caractérisé par
    un rouleau de pré-étirage (9) qui est monté dans la direction de déplacement de la bande entre le dispositif de coupe longitudinale (5a, 5b) et le dispositif d'évacuation (11), avec lequel au moins deux bandes partielles (1a, 1a', 1b, 1b', 1c) peuvent être transportées de manière synchrone.
  8. Dispositif selon la revendication 7,
    caractérisé en ce que
    le rouleau de pré-étirage (9) peut être pivoté pour l'étirage de la bande de matériau (1) au début de la production, de manière orthogonale à la bande de matériau (1).
  9. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que
    au moins un dispositif de coupe longitudinale (5a, 5b), qui est monté de préférence sur une barre de coupe (18), peut être pivoté, pour l'étirage de la bande de matériau (1), au début de la production, de manière orthogonale à la bande de matériau (1).
  10. Dispositif selon la revendication 9,
    caractérisé en ce que
    les dispositifs de coupe longitudinale (5a, 5b) sont logés de manière coulissante transversalement sur la barre de coupe (18).
  11. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce que
    les lames du dispositif de coupe longitudinale (5a, 5b) sont munies d'un dispositif de chauffage.
  12. Procédé pour le guidage d'une bande de matériau (1), cette bande de matériau étant soumise, du fait d'un processus de production ou d'usinage précédent, à des variations de largeur, dans lequel pour le réglage de la largeur de la bande de matériau (1), au moins un moyen de coupe longitudinale (5a, 5b) est utilisé, avec lequel la bande (1) est découpée le long de sa direction de déplacement (z) en au moins une bande de film principale (1a, 1b, 1c) et au moins une bande de bord (1a', 1b'),
    - au moins un capteur permettant d'enregistrer des valeurs de mesure à partir desquelles il est déterminé si, dans la zone d'action de l'au moins un moyen de coupe longitudinale (5a, 5b), se trouve du matériau en bande et
    - et le dispositif de coupe longitudinale (5a, 5b) étant désactivé lorsque, à la suite d'une réduction de la largeur de la bande, aucun matériau en bande ne se trouve dans la zone de coupe de l'au moins un moyen de coupe longitudinale (5a, 5b)
    caractérisé en ce que
    • au moins un dispositif de coupe transversale (10) est activé pour la découpe d'une bande de bord (1a', 1b') par un dispositif de commande,
    le dispositif de coupe transversale (10) étant monté plus loin en aval que les moyens de coupe longitudinale (5a, 5b) et
    le dispositif de commande calculant la différence de temps dans laquelle la lame du dispositif de coupe transversale (10) peut entrer dans la bande de matériau afin d'effectuer la coupe transversale, lorsque le début d'une coupe longitudinale est arrivé à l'endroit de la coupe transversale.
  13. Procédé selon la revendication précédente,
    caractérisé en ce que
    lors d'une nouvelle entrée du matériau en bande dans la zone du dispositif de coupe longitudinale (5a, 5b), celui-ci (5a, 5b) est activé à nouveau.
  14. Dispositif selon l'une des revendications 12 à 13,
    caractérisé en ce que
    la lame du dispositif de coupe transversale (10) freine la bande de bord (21), un rouleau de pré-étirage (9) permettant de transporter la bande de bord (21) plus loin, de façon à ce qu'une boucle de bande de bord (26) soit formée, qui est aspirée par le dispositif d'évacuation (11).
  15. Dispositif selon l'une des revendications 12 à 14,
    caractérisé en ce que
    le freinage de la bande de bord (21) par la lame du dispositif de coupe transversale (10) et l'augmentation simultanée de la contrainte de traction par les rouleaux de pré-étirage (24) de la bande de bord (21) plus loin en aval permet de séparer la bande de bord (21) de la bande de matériau (1).
  16. Dispositif selon l'une des revendications 12 à 15,
    caractérisé en ce que
    un capteur optique est utilisé, qui mesure l'intensité d'un rayon lumineux provenant d'une source de lumière, qui se trouve sur le même côté de la bande de matériau (1) que le capteur optique.
  17. Dispositif selon la revendication précédente,
    caractérisé en ce que
    le rayon lumineux est dirigé vers la bande de matériau (1) lorsque le matériau de la bande de matériau se trouve dans la zone d'action de l'au moins un dispositif de coupe longitudinale (5a, 5b).
  18. Dispositif selon la revendication précédente,
    caractérisé en ce que
    le rayon lumineux arrive sur un miroir lorsqu'aucun matériau de la bande de matériau ne se trouve dans la zone d'action de l'au moins un dispositif de coupe transversale (5a, 5b) et en ce que le miroir dirige la lumière du rayon lumineux à nouveau vers le dispositif de capteur.
  19. Dispositif selon l'une des revendications 12 à 18,
    caractérisé en ce que
    - le dispositif de coupe longitudinale (5a, 5b) utilisé pour la coupe longitudinale de la bande (1), ou pour la découpe d'une bande de bord (21), comprend au moins une lame (31),
    - et en ce que cette au moins une lame (31) effectue, au moins lors d'un mouvement vers sa position de coupe (35) ou hors de la position de coupe (35), un mouvement, de préférence un mouvement de pivotement,
    - qui comprend au moins une composante parallèle à une verticale sur le plan de la bande (1) au niveau de la position de coupe (35).
EP08828979.8A 2007-09-05 2008-09-05 Dispositif et procédé de guidage d'une bande de matière Active EP2200788B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007042025.2A DE102007042025B4 (de) 2007-09-05 2007-09-05 Vorrichtung und Verfahren zur Führung einer Materialbahn
PCT/EP2008/007281 WO2009030491A1 (fr) 2007-09-05 2008-09-05 Dispositif et procédé de guidage d'une bande de matière

Publications (2)

Publication Number Publication Date
EP2200788A1 EP2200788A1 (fr) 2010-06-30
EP2200788B1 true EP2200788B1 (fr) 2019-11-06

Family

ID=40201996

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08828979.8A Active EP2200788B1 (fr) 2007-09-05 2008-09-05 Dispositif et procédé de guidage d'une bande de matière

Country Status (3)

Country Link
EP (1) EP2200788B1 (fr)
DE (1) DE102007042025B4 (fr)
WO (1) WO2009030491A1 (fr)

Cited By (1)

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CN110919532A (zh) * 2019-12-02 2020-03-27 霍修沛 一种金属材料拉丝处理改良型拉丝轮

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DE102011015544A1 (de) 2011-03-30 2012-10-04 Reifenhäuser GmbH & Co. KG Maschinenfabrik Vorrichtung und Verfahren zum randseitigen Beschneiden einer Materialbahn
DE202011004608U1 (de) 2011-03-30 2012-07-04 Reifenhäuser GmbH & Co. KG Maschinenfabrik Vorrichtung zum randseitigen Beschneiden einer Materialbahn
DE102014102604A1 (de) * 2014-02-27 2015-08-27 Windmöller & Hölscher Kg Vorrichtung zum automatischen Schneiden und Abführen einer Materialbahn sowie Verfahren hierzu
CN107073736B (zh) * 2014-11-05 2019-09-13 福伊特专利有限公司 用于导出材料幅的边角料的空气导引板和方法
CN104723386B (zh) * 2015-03-16 2017-01-04 上海绿顺包装机械有限公司 一种蜂窝纸板分切装置

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DE8703518U1 (fr) * 1986-09-06 1987-05-07 Wilhelm Dahle Buero- Und Zeichengeraetefabrik, 8630 Coburg, De
DE4133760A1 (de) * 1991-10-11 1993-04-15 Bhs Bayerische Berg Verfahren und vorrichtung zum herstellen von wellpappeboegen mit veraenderbarem format
DE9203472U1 (fr) * 1992-02-15 1992-06-04 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh, 4100 Duisburg, De
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110919532A (zh) * 2019-12-02 2020-03-27 霍修沛 一种金属材料拉丝处理改良型拉丝轮
CN110919532B (zh) * 2019-12-02 2021-07-09 顾建伟 一种金属材料拉丝处理改良型拉丝轮

Also Published As

Publication number Publication date
DE102007042025A1 (de) 2009-03-26
WO2009030491A1 (fr) 2009-03-12
DE102007042025B4 (de) 2018-12-20
EP2200788A1 (fr) 2010-06-30

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