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EP3300881B1 - Procédé et dispositif de rognage sur les deux faces d'un matériau plat dans le cadre de fabrication de tubes - Google Patents

Procédé et dispositif de rognage sur les deux faces d'un matériau plat dans le cadre de fabrication de tubes Download PDF

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Publication number
EP3300881B1
EP3300881B1 EP17193675.0A EP17193675A EP3300881B1 EP 3300881 B1 EP3300881 B1 EP 3300881B1 EP 17193675 A EP17193675 A EP 17193675A EP 3300881 B1 EP3300881 B1 EP 3300881B1
Authority
EP
European Patent Office
Prior art keywords
trimming
printed image
machine direction
flat material
signal
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
EP17193675.0A
Other languages
German (de)
English (en)
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EP3300881A1 (fr
Inventor
Christoph Bärtschi
Emanuel Heusser
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.)
Packsys Global AG
Original Assignee
Packsys Global AG
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Publication date
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Publication of EP3300881A1 publication Critical patent/EP3300881A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/006—Controlling; Regulating; Measuring; Safety measures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/02—Feeding or positioning sheets, blanks or webs
    • B31B70/10—Feeding or positioning webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B70/148—Cutting-out portions from the sides of webs or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/14—Cutting, e.g. perforating, punching, slitting or trimming
    • B31B70/16—Cutting webs
    • B31B70/18—Cutting webs longitudinally

Definitions

  • the invention relates to a method according to the preamble of claim 1 for trimming (trimming) on both sides (longitudinal) of a printed image driven in one direction, preferably composed of images arranged one behind the other in the direction of travel, for example repeating or different images
  • Flexible, in particular band-shaped, flat material preferably unwound from a roll, in particular a laminate material, along two trimming edges (trimming edges) extending in the running direction and spaced perpendicular to the running direction by means of two trimming knives (trimming knives), in particular in the running direction in front of forming means for forming of the material to form a tube shape and in the running direction in front of, in particular in the running direction downstream of the forming means, welding means for, preferably overlapping, welding of the tube shape in the area of the trimmed edges within a packaging tube manufacturing process, wherein the flat material, in particular in an area in the running direction in front of the trimming knives, is aligned perpendicular to the running direction by means of alignment means relative to
  • the invention also relates to a device according to the preamble of claim 11, which is designed and intended to carry out the trimming method.
  • a device 100 known from practice for trimming flat material 102 driven in a running direction 101 in the context of a tube manufacturing process is known.
  • To trim the flat material 102 it is aligned perpendicular to the running direction 101 relative to two parallel trimming knives 104 using an alignment device 103 (alignment means), which then cut off a waste strip 105 on each long side of the flat material.
  • the alignment means 103 are controlled by control means 106 via a control signal line 107, the control being carried out in such a way that the distance between the trimming knives 104 and thus the distance between the trimming edges generated by the knives and the (original) longitudinal edges is kept constant.
  • the device 100 comprises an edge sensor 107 which is connected to the control means 106 in a signal-conducting manner. These compare the actual flat material edge position with a target value.
  • the control means control the alignment means 103 with a corresponding control signal in accordance with the control deviation.
  • the disadvantages of the known device are illustrated below with reference to FIG Fig. 10 explained.
  • the flat material 102 is shown there in a plan view.
  • a print image 109 can be seen, which consists of a large number of images that are repeated in the running direction.
  • the problem arises that the printed image 109 is not reliably arranged between the (original) outer outer edges 110 (longitudinal edges of the flat material 102). It is known that such variations or shifts perpendicular to the running direction 101 occur when changing flat material rolls, and fluctuations in the printing process cannot be avoided.
  • the invention is based on the object of improving the trimming of the flat material, in particular in the context of tube production before a later welding process, with regard to the position of the trimmed edges relative to the printed image - in particular, an (unintentional) cutting into the Print image in the area of a lower or inner trimming edge during the welding process can be avoided.
  • control means generate the control signal on the basis of a sensor signal from image position sensor means which detect a print image position of the print image perpendicular to the running direction and the alignment means preferably generate the image position sensor means band-shaped, flat material so (perpendicular to the direction of travel and perpendicular to the direction of material thickness of the flat material) relative align with the trimming knives that a trimming edge position is kept constant relative to the print image.
  • the invention is based on the idea of aligning the flat material perpendicular to its running direction relative to the trimming knives on the basis of a position determination of the printed image of the flat material, ie on the basis of a printed image position, with the adjustment of the alignment means for varying the relative position between the flat material and the trimming knives being carried out in this way is that the trimming knife and thus the trimming edge position is kept constant relative to the print image.
  • the invention provides for the control means to assign image acquisition means for partial or complete acquisition of the print image, in particular an image feature (pattern) that continues or repeats in the running direction, with print image position sensor means, such that a sensor signal indicative of a print image position of Print image position sensor means is included in the generation of the control signal for the alignment means or is formed therefrom in order to align the flat strip material on the basis of the print image position of the print image perpendicular to the direction of travel relative to the trimming knives.
  • image acquisition means for partial or complete acquisition of the print image, in particular an image feature (pattern) that continues or repeats in the running direction
  • print image position sensor means such that a sensor signal indicative of a print image position of Print image position sensor means is included in the generation of the control signal for the alignment means or is formed therefrom in order to align the flat strip material on the basis of the print image position of the print image perpendicular to the direction of travel relative to the trimming knives.
  • a print image position determined by the print image position means (perpendicular to the direction of travel) or a sensor signal of the print image position means corresponding to the print image position flows according to the invention.
  • a distance between the print image perpendicular to the running direction and at least one of the trimming edges is preferably kept at a value greater than zero, so that an unprinted edge area remains next to the print image after trimming (cutting, trimming).
  • the method according to the invention and the device according to the invention thus compensate for fluctuations in the print image position relative to the trimming edges and thus relative to the longitudinal weld seam of a tube perpendicular to the running direction, which results in the trimming process, in particular for the mentioned subsequent welding process, in a printed image that is consistently arranged in the running direction between the trimming edges.
  • a print image that is consistently arranged between the trimming edges is of particular advantage for a preferred embodiment of the method according to the invention and the device according to the invention, in which the trimming or trimming edges are not welded to one another in a butt-joint arrangement, but in an overlapping arrangement, that is, in such a way that the flat material is or will be arranged overlapping in the region of its longitudinal or trimming edges and the longitudinal or trimming edges are welded to one another in this overlapping position.
  • fluctuations in the position of the print image have a particularly strong effect on the aesthetic appearance and on the quality of the welding process as such.
  • the forming agents and are therefore preferred the welding means are designed in such a way that by means of the shaping means an overlapping arrangement of the trimming edges, that is, a radially adjacent positioning, is effected and the tubular shape can be welded or is welded in this overlapping arrangement.
  • the invention is not limited to this preferred embodiment - in principle, an alternative arrangement of the trimming edges butt and welding of the trimming edges in this position is also possible or realizable.
  • control means keep the trimming edge position relative to the print image constant so that fluctuations in the distance between the print image and a trimming edge position amount to a maximum of 0.3 mm, the maximum being preferred Distance fluctuation is in a range of values between 0.1mm (or less) and 2.5mm.
  • a preferred maximum distance tolerance is 0.15 mm.
  • the print image usually consists of identical images that are repeated in the direction of travel - the invention is, however, expressly not limited to this, since it is possible, in particular with modern digital printing processes, to arrange or print different images one behind the other in the direction of travel, so that it is not essential that the images arranged one behind the other are periodic or identical - it is only essential that one feature of the images is periodic, ie repeats itself from image to image and the position of this image feature (pattern) can be detected with the aid of the print image position sensor means. Theoretically, it is even conceivable that all successive images of the printed image differ in order to produce individually designed tubes, that is, unique items.
  • the alignment means for positioning the flat material relative to the trimming knives or the trimming edges, there are different possibilities. In principle, it is possible to actively adjust the trimming knife perpendicular to the direction of travel of the laminate. However, an embodiment with fixed trimming knives is preferred and an active adjustment of the flat material.
  • the alignment means are preferably arranged in the running direction of the laminate in front of the trimming knives, it being further preferred to arrange the image acquisition means of the print image position sensor means in the running direction between the alignment means and the trimming knives.
  • the fixed arrangement of the trimming knives has the advantage that the flat material is already pre-positioned after the trimming process for the further process steps, ie always remains or is arranged in the same position perpendicular to the direction of travel, which results in greater process reliability.
  • the aligning means preferably comprise two rollers which are positioned relatively fixed to one another and are spaced apart in the running direction and rotate about roller axes which are aligned parallel to the flat material.
  • the rollers are preferably pivotable about a pivot axis oriented at an angle, in particular perpendicular to the surface extension of the flat material and the roller axes, by means of a drive which is controlled with the control signal of the regulating means.
  • trimming knife There are also different options with regard to the design and arrangement of the trimming knife.
  • One or both trimming edges can run perpendicular to the surface extension of the flat material - however, an alternative embodiment is preferred in which the trimming knives are designed and arranged in such a way that at least one of the trimming edges runs obliquely to the surface extension of the flat material.
  • the image acquisition means are formed by a camera.
  • optical sensors can be used, for example for capturing patterns of the print image which are to be explained later and which are only visible under UV light and / or visible to the human eye.
  • the image acquisition means it is possible to use the image acquisition means to acquire the entire print image perpendicular to the direction of travel and in the direction of travel.
  • the print image position sensor means have pattern recognition means which are designed to recognize and localize a predetermined pattern in a given image - namely, for example, a captured image of the print image.
  • pattern recognition means which are designed to recognize and localize a predetermined pattern in a given image - namely, for example, a captured image of the print image.
  • Such technologies which are assumed to be generally known, are also known as "Pattern Matching” (PM).
  • Such a technology which uses suitably programmed data processing means, is thus able to generate a target position or a target image to find and localize (in particular excerpts) the corresponding pattern in the current print image, for example of the form that a (one- or two-dimensional) position vector is generated as a result of such a technology that further develops the print image position sensor means according to the invention and is then available for subsequent processing by the alignment means, which reproduces or corresponds to a position or position shift between the (current) print image and the (preferably excerpt) reference image.
  • Correlation methods in (digital) image processing can be regarded as a favorable procedure for implementing such a technology, with the so-called normalized cross-correlation (as a variant of methods of square distances or the so-called maximum difference) in particular delivering particularly good results in the present application area:
  • a normalization of correlation values reduces the sensitivity of a correlation determination to (strong) contrasts or changes in intensity in the print image, and the problem context on which the present invention is based - two-dimensional - two-dimensional variation and size scaling or rotation of a pattern make correlation-based pattern recognition technologies particularly suitable.
  • control signal on the basis of a correlation, more preferably a (normalized) cross-correlation between a current image of the print image and a more preferably excerpt than, for example, particularly suitable in terms of peculiarity or recognizability and present in a target position determine from the print image, the result of such a correlation determination then in particular also being vector or distance information on how the (current) print image is positioned relative to the reference.
  • these vector or distance data then allow the alignment according to the invention by the alignment means.
  • Alternative technologies for comparing images between a (current) image of the print image and an image reference that are potentially superior to the correlation described, for example in terms of speed and computing power can include contrast and / or color change analyzes.
  • an image function corresponding to the image is examined in its extreme values or turning points in an otherwise known manner in order to determine at which positions, in which direction and with what strength there is a color change in the image signal.
  • Such technologies also referred to as image edge detection, then, with suitable downstream filtering, enable the identification of relevant image regions or, in accordance with the procedure outlined above, a determination of a match or a localization of any shifts between matched areas.
  • the image capturing means capture image points along a line extending at an angle, in particular perpendicular to the direction of travel, very particularly preferably along several parallel lines. It has proven particularly expedient if the image capturing means is in the form of a (digital) camera, in particular a CCD camera are realized.
  • control signal is not only generated by the control means on the basis of the sensor signal of the print image position sensor means, but that a further sensor signal flows into the generation of the control signal, namely a sensor signal of a preferably provided in addition to the print image position sensor means (per se known) edge sensor, for example in the form of an ultrasonic sensor, which detects the position of an outer edge (to be cut) of the flat material.
  • a further sensor signal flows into the generation of the control signal, namely a sensor signal of a preferably provided in addition to the print image position sensor means (per se known) edge sensor, for example in the form of an ultrasonic sensor, which detects the position of an outer edge (to be cut) of the flat material.
  • Both sensor signals preferably flow into a cascade control with an outer and an inner control loop, which enables continuous flat material position control even in the event that the sensor signal of the print image position sensor means is repeatedly interrupted and / or only with respect to, in particular regularly, spaced apart in the running direction Sub-sections of the print image is generated, be it due to a clocked or interrupted image capture and / or a non-continuous or continuous design of the print image in the direction of travel, for example in which the position of recurring print image patterns or patterns spaced apart in the direction of travel is determined by means of the image acquisition means. components is recorded.
  • control means comprise an inner control loop, within the framework of which the flat material position is controlled perpendicular to the treadmill direction on the basis of an edge sensor signal, with a control specification or a setpoint value of the flat material position perpendicular to the running direction for the inner control loop being determined within the framework of an outer control loop comprising the print image position sensor means , relative to which the control device determines the control deviation to be compensated for by the control signal.
  • the sensor signal of the print image position sensor means does not flow directly into the control signal, which is alternatively possible, but rather indirectly within the framework of the cascade control explained.
  • the cascade control has the decisive advantage that the inner control loop comprising the edge sensor typically works with signal acquisition rates between 5Hz to 50kHz and thus reacts significantly faster than the outer control circuit comprising the image acquisition means, which typically enables update rates in the range between 0.5Hz and 500Hz.
  • the signal acquisition rate of the inner control loop is preferably at least 10 times, preferably at least 50 times, very particularly preferably at least 100 times greater or faster than that of the outer control loop.
  • FIG. 1 A device 1 designed according to the concept of the invention for carrying out a trimming process according to the invention for trimming on both sides of a belt-shaped flexible flat material 2, here a plastic laminate, driven in a running direction L and unwound from a roll (not shown) is shown.
  • the flat material 2 has a printed image 3 on its surface side, comprising a multiplicity of images repeating in the running direction L (here, for example, in the form of any inscription "best toothpaste" and three asterisks).
  • the devices 1 comprises two trimming knives 4 spaced perpendicular to the running direction L, which are fixedly arranged during the process in the specific embodiment and with which the flat material 2 along two trimming edges 5 determined by the trimming knife distance (cf. Fig. 3 ) is trimmed, whereby a waste strip 6 is created on each longitudinal side, each comprising an (original) outer edge 7 (longitudinal edge).
  • the device 1 serves a position here to keep constant a distance A of the printed image 3 perpendicular to the running direction L to the trimming edges 5 and thus to the trimming knife positions.
  • Alignment means 8 known per se are arranged in the running direction L in front of the trimming knives 4, which are dependent on a pivot axis 9 by means of a drive (not shown) a control signal generated by control means 12 are rotatable in order to actively move the flat material 2 (substrate strip) along an in Fig. 3 axis S shown perpendicular to the fixedly positioned trimming knives 4.
  • Image acquisition means 10 for example in the form of a digital camera, which form part of the print image position sensor means 11, are arranged in the running direction L between the alignment means 8 and the trimming knives 4. These are connected in a signal-conducting manner to control means 12 (logic means) which, on the basis of a sensor signal that characterizes a print image position of the flat material along the axis S and generated by the print image position sensor means, generate a control signal as part of a position control of the flat material 2, with which the alignment means 8 are controlled.
  • control means 12 logic means
  • control means 12 logic means
  • the regulation takes place in such a way that the position of the printed image 3, in the specific exemplary embodiment a lateral distance A to the trimming knives 4 and thus to the trimming edges 5, is kept constant.
  • the distances A on both long sides can be different or specified and, as explained in the general description part, at least one, preferably exclusively one, of the distances can be zero or negative - it is essential that the position of the printed image relative to the trimming knives 4 is constant hold.
  • Fig. 6 shows the offset area 13 in an enlarged view.
  • the offset 15 in printed image 3 and the course of the trimming edge 5 relative to the printed image 3 can be seen, so that the distance A along the axis S is kept constant.
  • Fig. 2 is a compared to Fig. 1 alternative, preferred embodiment of a device for trimming flat material 2 in the context of a tube manufacturing process.
  • the following essentially refers to the differences from the exemplary embodiment according to FIG Fig. 1 received, being made in terms of the similarities Fig. 1 is referenced with the associated description.
  • an edge sensor 16 designed here for example as an ultrasonic sensor, is arranged with which the position of an outer edge 7 of the flat material along the axis S, ie can be detected perpendicular to the running direction L.
  • the sensor signals from sensors 11 and 16 are linked within the scope of a cascade control such that the sensor signal from print image position sensor means 11 is used to specify the target value for the edge sensor, so that, as a result, alignment means 8 are controlled on the basis of both sensor signals.
  • the detection means can comprise a camera or an alternative, more cost-effective, in particular UV light-sensitive optical sensor. If an image feature, for example line-shaped, of the, in particular continuous, pattern in the transverse direction to the running direction L, ie along the axis S, sweeps over the image acquisition means, a curve is created, as shown in FIG Fig. 7 illustrated.
  • the X-axis represents the position of the image acquisition means (optical sensor) in relation to the pattern perpendicular to the direction of travel and the Y-axis represents the intensity of the sensor signal.
  • the relative distance between the image capturing means (sensor) and the pattern of the printed image (stripe) can be regulated at a working point 18.
  • a print image position sensor means performing a color and / or contrast analysis is explained below.
  • the position is preferably determined on the basis of a visible print image section.
  • flat material 2 conveyed along a running direction L can be seen with a printed image 3, consisting of recurring or repetitive (identical) images along the running direction L, here with the text toothpaste as an example.
  • FIG Figure 8b An enlargement of a section of such an image of the print image 3 is shown in FIG Figure 8b shown.
  • the image capturing means capture the print image line by line, whereby contrasts in the running direction L are blurred (cf. Figure 8c ), but not perpendicular to this, along the S-axis, a color and contrast analysis along the S-axis with suitable quantization then only finds relevant ones Figure 8d edges shown, in the specific embodiment components or side edges of the letter "P" with the highest color contrast between fill color and background color.
  • the position of one of the resulting contrast edges along the S-axis corresponds to the (overall) print image position along the S-axis and can be used to regulate the flat material position along the S-axis.

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  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Claims (13)

  1. Procédé de rognage des deux côtés d'un matériau plat flexible, notamment un matériau stratifié, entrainé dans un sens machine (L) et imprimé d'une image imprimée (3), de préférence composée des images répétitives dans le sens machine (L), au moyen des deux couteaux à rogner (4) le long des deux bords de rognage (5) s'étendant dans le sens machine (L) et espacés perpendiculairement par rapport au sens machine (L), notamment en amont des moyens de déformation destinés à transformer le matériau plat en une forme tubulaire dans le sens machine et en amont des moyens de soudage destinés à souder, de préférence de manière chevauchante, la forme tubulaire dans la zone des bords de rognage (5) dans le cadre d'un procédé de fabrication des tubes d'emballage, le matériau plat étant aligné perpendiculairement au sens machine (L) au moyen des moyens d'alignement (8) par rapport aux couteaux à rogner (4), notamment dans une zone en amont des couteaux à rogner (4) dans le sens machine (4), les moyens d'alignement étant contrôlés au moyen d'un signal de contrôle généré par des moyens de contrôle (12)
    caractérisé en ce que
    les moyens de contrôle (12) génèrent le signal de contrôle sur la base d'un signal de capteur des moyens de capteur de position d'image imprimée (11) qui capturent une position d'image imprimée (3) perpendiculaire au sens machine (L) et qui ont des moyens de capture d'image (10) et que les moyens d'alignement (8) alignent le matériau plat par rapport aux couteaux à rogner (4) de telle manière qu'une position de bord de rognage par rapport à l'image imprimée (3) est maintenue constante.
  2. Procédé selon la revendication 1,
    caractérisé en ce
    qu'un signal de corrélation est utilisé pour la génération du signal de contrôle, le signal de corrélation étant généré par une corrélation, de préférence numérique et/ou arithmétique, d'une série des données d'image qui est identifiée de manière angulaire, notamment de manière perpendiculaire, par rapport au sens machine (L) au moyen des moyens de capture d'image (10) d'au moins une ligne d'image imprimée contrôlée et une série des données d'image de référence qui est générée et/ou conservée de manière correspondante.
  3. Procédé selon la revendication 2,
    caractérisé en ce que
    le signal de corrélation est identifié sur la base d'une corrélation croisée.
  4. Procédé selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'image imprimée (3) comprend un motif, notamment une ligne ou une bande, qui réfléchit l'UV, notamment continu ou récurrent, et que les moyens de capteur de position d'image imprimée (11) capturent la position du motif qui réfléchit l'UV.
  5. Procédé selon la revendication 4,
    caractérisé en ce que
    le motif qui réfléchit l'UV est disposé perpendiculairement au sens machine (L) entre les bords de rognage (5) ou en dehors des bords de rognage (5) sur le matériau plat.
  6. Procédé selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    l'image imprimée (3) comprend un motif visible, notamment une ligne ou une bande, notamment continu ou interrompu et récurrent dans le sens machine (L), notamment perpendiculairement au sens machine (L) en dehors des bords de rognage (5), et que les moyens de capteur de position d'image imprimée (11) capturent la position du motif visible.
  7. Procédé selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    les moyens de capteur de position d'image imprimée (11) identifient le signal de capteur sur la base d'une analyse de changement de contraste et/ou de couleur des données d'image qui sont capturées par les moyens de capture d'image (10), une position de changement de contraste et/ou de couleur dans l'image imprimée (3) correspondant à la position d'image imprimée.
  8. Procédé selon la revendication 7,
    caractérisé en ce que
    l'analyse de changement de contraste et/ou de couleur est effectuée sur la base d'un signal prétraité des moyens de capture d'image, la hauteur de pic dudit signal corrélant avec la position de changement de contraste et/ou de couleur dans l'image imprimée.
  9. Procédé selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    les moyens de capture d'image (10) comprend une caméra.
  10. Procédé selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    les moyens de contrôle (12) génèrent le signal de contrôle pour les moyens d'alignement (8) sur la base d'un signal de capteur d'un capteur de bord (16) destiné à capturer une position de bord d'un bord extérieur (7) du matériau plat, sa valeur de consigne étant déterminée sur la base du signal de capteur, notamment discontinu, des moyens de capteur de position d'image imprimée (11).
  11. Dispositif pour réaliser un procédé de rognage selon l'une quelconque des revendications précédentes, le dispositif comprenant des moyens d'entrainement destinés à entraîner le matériau plat dans le sens machine (L), comprenant deux couteaux à rogner espacés perpendiculairement par rapport au sens machine (L) et comprenant des moyens d'alignement (8), notamment disposés dans une zone en amont des couteaux à rogner (4) dans le sens machine (L), destinés à aligner le matériau plat par rapport aux couteaux à rogner (4) et comprenant des moyens de contrôle (12) reliés aux moyens d'alignement (8) en conduisant le signal de contrôle,
    caractérisé en ce que
    des moyens de capteur de position d'image imprimée (11) qui capturent une position d'image imprimée (3) perpendiculaire au sens machine (L) et qui ont des moyens de capture d'image (10) sont assignés aux moyens de contrôle (12) en conduisant le signal, et que les moyens de contrôle (12) sont réalisés afin de générer le signal de contrôle sur la base d'un signal de capteur des moyens de capteur de position d'image imprimée (11) et que les moyens d'alignement (8) sont réalisés afin d'aligner le matériau plat par rapport aux couteaux à rogner (4) de telle manière qu'une position de bord de rognage est maintenue constante par rapport à l'image imprimée (3).
  12. Dispositif selon la revendication 11,
    caractérisé en ce que
    les moyens de contrôle (12) sont réalisés afin de générer le signal de contrôle pour les moyens d'alignement (8) sur la base d'un signal de capteur d'un capteur de bord (16) destiné à capturer une position de bord d'un bord extérieur (7) du matériau plat qui s'étend dans le sens machine (L), sa valeur de consigne pouvant être déterminée sur la base du signal de capteur, notamment discontinu, des moyens de capteur de position d'image imprimée (11).
  13. Dispositif selon la revendication 11 ou la revendication 12,
    caractérisé en ce que
    des moyens de déformation destinés à transformer le matériau plat en une forme tubulaire sont disposés en aval des couteaux à rogner (4) dans le sens machine (L) et en amont des moyens de soudage destinés à souder, de préférence de manière chevauchante, la forme tubulaire dans la zone des bords de rognage (5) dans le cadre d'un procédé de fabrication des tubes d'emballage.
EP17193675.0A 2016-09-29 2017-09-28 Procédé et dispositif de rognage sur les deux faces d'un matériau plat dans le cadre de fabrication de tubes Active EP3300881B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016118548.5A DE102016118548A1 (de) 2016-09-29 2016-09-29 Verfahren und Vorrichtung zum beidseitigen Besäumen eines Flachmaterials im Rahmen der Tubenherstellung

Publications (2)

Publication Number Publication Date
EP3300881A1 EP3300881A1 (fr) 2018-04-04
EP3300881B1 true EP3300881B1 (fr) 2020-08-12

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Application Number Title Priority Date Filing Date
EP17193675.0A Active EP3300881B1 (fr) 2016-09-29 2017-09-28 Procédé et dispositif de rognage sur les deux faces d'un matériau plat dans le cadre de fabrication de tubes

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Country Link
EP (1) EP3300881B1 (fr)
DE (1) DE102016118548A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016118548A1 (de) 2016-09-29 2018-03-29 Packsys Global Ag Verfahren und Vorrichtung zum beidseitigen Besäumen eines Flachmaterials im Rahmen der Tubenherstellung
EP4082757A1 (fr) 2021-04-26 2022-11-02 Aisapack Holding SA Emballage dont la soudure est dissimulee dans l'impression et procede de fabrication

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2708394A (en) * 1950-01-21 1955-05-17 Daystrom Inc Sheet guiding apparatus for tube forming machines
US3066063A (en) 1957-10-17 1962-11-27 American Can Co Method of forming longitudinally extending side seams in a tubular container
JPH08324600A (ja) 1995-03-27 1996-12-10 Dainippon Printing Co Ltd ラミネートチューブ
DE102004022467A1 (de) * 2004-05-06 2005-12-01 Rovema Verpackungsmaschinen Gmbh Vertikale Schlauchbeutelmaschine mit einer Spanneinrichtung für einen Folienschlauch
WO2007144185A1 (fr) 2006-06-14 2007-12-21 Texmag Gmbh Vertriebsgesellschaft Procédé et dispositif de traitement d'une bande de matière défilante
DE102009023948B4 (de) 2009-06-04 2013-05-29 Baumer Innotec Ag Vorrichtung zum Erfassen einer Markierung auf einem flächigen Gegenstand und Verfahren dazu sowie Einrichtung zum Trennen von Abschnitten von einem flächigen Gegenstand
EP2481585B1 (fr) * 2011-01-28 2015-12-16 Müller Martini Holding AG Dispositif et procédé de traitement d'une bande de matière d'impression pour produits d'impression
DE102016118548A1 (de) 2016-09-29 2018-03-29 Packsys Global Ag Verfahren und Vorrichtung zum beidseitigen Besäumen eines Flachmaterials im Rahmen der Tubenherstellung

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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DE102016118548A1 (de) 2018-03-29

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