DE102017008216A1 - Device and method for the full-surface detection and localization of marking points and / or defects on sheet-like and linear goods - Google Patents

Abstract

Device V for full surface detection and localization of marking points and / or defects (3.1) on sheet-like and linear goods (3) according to Figure 1, comprising
- A detector roller (1) or a detector bar (1) containing
- An abutment layer (1.1) extending over the circumference and the transverse length of the detector roller (1) or over the transverse length of the detector beam (1),
an adhesive layer (1.7.1) which extends over the circumference and the transverse length or over the transverse length of the counter-bearing layer (1.1),
a sensor layer (1.5) which extends over the circumference and the transverse length or over the transverse length of the adhesive layer (1.7.1),
an adhesive layer (1.7.2) which extends over the circumference and the transverse length or over the transverse length of the sensor layer (1.5),
a transfer layer (1.6) which extends over the circumference and the transverse length or over the transverse length of the adhesive layer (1.7.2),
a device (1.4) for supplying voltage to the sensor layer (1.5),
- A device (1.3) for transmitting a signal generated by the sensor layer (1.5) and
a device (1.2) for evaluating the signal transmittable by the device (1.3) with respect to the X / Y coordinates of the marking sites and / or defects,
- A counterpart (2) which extends over the transverse length of the detector roller (1) or the detector beam (1), and
- A gap (7) between the detector roller (1) and the counterpart (2).

Description

Field of the invention

The present invention relates to a device for the full-surface detection and localization of marking points and / or defects on sheet-like and linear goods.

In addition, the present invention relates to a method for the full-surface detection and localization of marking points and / or defects on sheet-like and linear goods.

Last but not least, the present invention relates to a method for the removal of imperfections on sheet-like and linear goods.

State of the art

The documents cited in the present application are incorporated herein by reference.

A uniform thickness and a flawless surface are usually desired in the production of sheetlike goods such as metal sheets, paper, cardboard, webs of textile products such as fabrics, knitted fabrics, scrims, nonwovens, tapes and straps, sheets and films of natural and synthetic polymers such as technical Plastics and elastomers, boards of wood or wood-based materials, gypsum plasterboard, gypsum fiber boards, glass sheets, veneers and coatings, wherein said materials may also be impregnated or coated if necessary. In some cases, however, a structured surface is desired, such as decorative materials. The quality of such flat goods is determined decisively by the desired surface condition. Therefore, methods and devices are required to objectively determine the surface condition and reproducible and reproducible within a short time - preferably integrated directly into the manufacturing process - to record, visualize, statistically evaluate and also to archive quality assurance. Furthermore, the methods and apparatus should be able to detect defined three-dimensional shapes or topographic surfaces in terms of shape and location. It would also be desirable if these methods and devices were able to detect splicing and adhesive tapes in the context of automated processes in flat goods.

From the international patent application WO 2009 / 101251A2 For example, there is known a method for measuring the pressure or the pressure profile in the nip of a rotary printing press in which a force or pressure sensor on the counter roll, the rubber roll or a roll forming the nip gives an electrical signal corresponding to the magnitude of the deformation. The rollers forming the nip rotate relative to one another such that a deformation of the sensor is effected by the pressure in the nip, the pressure in the nip and / or the pressure profile in the nip being calculated from the electrical signal. The force or pressure sensor is based on an EMFi film, ie an electromechanical, metallized film of biaxially stretched, foamed polypropylene, which converts mechanical influences into electrical signals, or on a piezoelectric film such as polyvinylidene fluoride. However, the method is not the detection and localization of defects, but the setting of the rollers of the rotary printing press, so that the colors are transferred as desired to the paper web to be printed and the printed paper web again easily from the roll surface without sticking or tearing triggers.

From the European patents EP 1 839 022 B1 and EP 1 839 023B1 Methods are known for measuring the lateral tension profile of a fibrous web in which at least one pressure sensor, for example an EMFi film pressure sensor, has at least one active zone used for measuring the force and a helical screw position in contact with the Surface of a roller is placed, wherein the at least one active zone of the pressure sensor is dimensioned so that it over the course of a respective roll revolution at a time completely within an overlap angle, which defines a portion of the roller, which is in contact with the fiber web, and at another time is completely in an open space. However, this means that always a certain distance of the fiber web during rotation of the roller is not in contact with the pressure sensor.

From the American patent US 6,910,376 B2 Also, a method of measuring the forces within the nip of a rotary printing press is known. For this purpose, pressure sensors are mounted in the pressure roller in the transverse direction to the transport direction of the paper web. The information provided by the pressure sensors is used to measure the pressure distribution within the nip. As pressure sensors, piezo-luminescent-pyroluminescent sensors (PPL sensors) can be used whose signal can be optically detected.

All known methods have the disadvantage of providing either an average over the entire roll width or only punctual values provided by pressure sensors arranged in at least one roll. A pressure-sensitive Area coverage of up to 100% is not possible with the known methods.

Object of the invention

The object of the present invention is to find a device and a method for the detection and localization of defects on sheet-like and linear goods, which no longer have the disadvantages of the prior art, but which allow it to be defined or defined in sheet-like or linear formations Topographical structures defects such as unilateral or bilateral elevations, specks and thickening and holes or cracks over the entire area both at standstill and at high transport speeds or feed speeds of sheet-like or linear goods of over 1000 m / min to detect and locate. It should be possible to detect changes in thickness below 1 μm down to 0.1 μm.

Inventive solution

• - mindestens eine transparente und/oder opake drehbare Detektorwalze mit einer Antriebswelle oder mindestens einen transparenten und/oder opaken, feststehenden Detektorbalken, enthaltend
  • - mindestens eine transparente oder opake statische Gegenlagerschicht, die sich über den gesamten Umfang und die gesamte oder im Wesentlichen gesamte Querlänge der mindestens einen Detektorwalze oder über die gesamte oder im Wesentlichen gesamte Querlänge des mindestens einen Detektorbalkens erstreckt, als unterste Schicht,
  • - mindestens eine erste transparente oder opake Haftschicht, die sich über den gesamten Umfang und die gesamte oder im Wesentlichen gesamte Querlänge oder über die gesamte oder im Wesentlichen gesamte Querlänge der Gegenlagerschicht erstreckt,
  • - mindestens eine statische Sensorschicht, die sich über den gesamten Umfang und die gesamte oder im Wesentlichen gesamte Querlänge oder über die gesamte oder im Wesentlichen gesamte Querlänge der ersten Haftschicht erstreckt,
  • - mindestens eine zweite transparente oder opake Haftschicht, die sich über den gesamten Umfang und die gesamte oder im Wesentlichen gesamte Querlänge oder über die gesamte oder im Wesentlichen gesamte Querlänge der statischen Sensorschicht erstreckt,
  • - mindestens eine transparente oder opake elastisch-dynamische Transferschicht, die sich über den gesamten Umfang und die gesamte oder im Wesentlichen gesamte Querlänge oder über die gesamte oder im Wesentlichen gesamte Querlänge der zweiten Haftschicht erstreckt,
  • - mindestens einer Vorrichtung zur Versorgung der Sensorschicht mit elektrischer Spannung,
  • - mindestens eine Vorrichtung zur Übertragung mindestens eines von der Sensorschicht erzeugbaren elektrischen und/oder optischen Signals und
  • - mindestens eine Vorrichtung zur Auswertung des von der mindestens einen Vorrichtung übertragbaren mindestens einen elektrischen und/oder optischen Signals bezüglich der X/Y-Koordinaten der mindestens einen Markierungsstelle und/oder der mindestens einen Fehlstelle,
• - ein opakes oder transparentes, feststehendes oder rotierendes Gegenstück, das sich über die gesamte Querlänge der Detektorwalze oder des Detektorbalkens erstreckt, und
• - einen Spalt mit statischer Zustellung oder variabler Zustellung, zwischen der Detektorwalze und dem Gegenstück.

Accordingly, an apparatus for the full-surface detection and localization of marking points and / or defects on sheet-like and linear goods, comprising

• - At least one transparent and / or opaque rotatable detector roller with a drive shaft or at least one transparent and / or opaque, fixed detector beams, containing
  • at least one transparent or opaque static counter-bearing layer which extends over the entire circumference and over the entire or essentially entire transverse length of the at least one detector roller or over the entire or substantially entire transverse length of the at least one detector beam, as the lowermost layer,
  • at least one first transparent or opaque adhesive layer extending over the entire circumference and over the entire or substantially entire transverse length or over the entire or substantially entire transverse length of the counter-bearing layer,
  • - At least one static sensor layer over the entire circumference and the entire or substantially entire transverse length or over the entire or substantially entire transverse length of the first adhesive layer extends,
  • at least one second transparent or opaque adhesive layer extending over the entire circumference and over the entire or substantially entire transverse length or over the entire or substantially entire transverse length of the static sensor layer,
  • at least one transparent or opaque elastic-dynamic transfer layer which extends over the entire circumference and over the entire or substantially entire transverse length or over the entire or substantially entire transverse length of the second adhesive layer,
  • at least one device for supplying the sensor layer with electrical voltage,
  • at least one device for transmitting at least one electrical and / or optical signal which can be generated by the sensor layer, and
  • at least one device for evaluating the at least one electrical and / or optical signal which can be transmitted by the at least one device with respect to the X / Y coordinates of the at least one marking location and / or the at least one defect,
• an opaque or transparent fixed or rotating counterpart which extends over the entire transverse length of the detector roller or the detector beam, and
• - A gap with static or variable delivery, between the detector roller and the counterpart.

1. (A) Bereitstellen mindestens einer erfindungsgemäßen Vorrichtung, enthaltend
   • - mindestens eine transparente oder opake statische Gegenlagerschicht, die sich über den gesamten Umfang und die gesamte oder im Wesentlichen gesamte Querlänge der mindestens einen Detektorwalze oder über die gesamte oder im Wesentlichen gesamte Querlänge des mindestens einen Detektorbalkens erstreckt, als unterste Schicht,
   • - mindestens eine erste transparente oder opake Haftschicht, die sich über den gesamten Umfang und die gesamte oder im Wesentlichen gesamte Querlänge oder über die gesamte oder im Wesentlichen gesamte Querlänge der Gegenlagerschicht erstreckt,
   • - mindestens eine statische Sensorschicht, die sich über den gesamten Umfang und die gesamte oder im Wesentlichen gesamte Querlänge oder über die gesamte oder im Wesentlichen gesamte Querlänge der ersten Haftschicht erstreckt,
   • - mindestens eine zweite transparente oder opake Haftschicht, die sich über den gesamten Umfang und die gesamte oder im Wesentlichen gesamte Querlänge oder über die gesamte oder im Wesentlichen gesamte Querlänge der statischen Sensorschicht erstreckt,
   • - mindestens eine transparente oder opake elastisch-dynamische Transferschicht, die sich über den gesamten Umfang und die gesamte oder im Wesentlichen gesamte Querlänge oder über die gesamte oder im Wesentlichen gesamte Querlänge der zweiten Haftschicht erstreckt,
   • - mindestens einer Vorrichtung zur Versorgung der Sensorschicht mit elektrischer Spannung,
   • - mindestens eine Vorrichtung zur Übertragung mindestens eines von der Sensorschicht erzeugbaren elektrischen und/oder optischen Signals und
   • - mindestens eine Vorrichtung zur Auswertung des von der mindestens einen Vorrichtung übertragbaren mindestens einen elektrischen und/oder optischen Signals bezüglich der X/Y-Koordinaten der mindestens einen Markierungsstelle und/oder der mindestens einen Fehlstellen
   • - ein opakes oder transparentes, feststehendes oder rotierendes Gegenstück, das sich über die gesamte Querlänge der Detektorwalze oder des Detektorbalkens erstreckt, und
   • - einen Spalt mit statischer Zustellung oder variabler Zustellung, zwischen der Detektorwalze und dem Gegenstück.
2. (B) Bewegung mindestens einen flächenförmigen oder linienförmigen Gutes mit mindestens einer Fehlstelle durch den Spalt,
3. (C) Deformation der mindestens einen Transferschicht durch die mindestens eine Fehlstelle,
4. (D) Änderung der Spannung in der mindestens einen Sensorschicht durch die mindestens eine Markierungsstelle und/oder die mindestens eine Fehlstelle und Erzeugung mindestens eines elektrischen und/oder optischen Signals,
5. (E) Übertragung des mindestens einen elektrischen und/oder optischen Signals
6. (F) zu einer Vorrichtung zur Auswertung des mindestens einen elektrischen und/oder optischen Signals bezüglich der X/Y-Koordinaten der mindestens einen Markierungsstelle und/oder der mindestens einen Fehlstelle in der Vorrichtung.

In the following, this device is referred to as "device according to the invention". In addition, the process has been found for the full-area detection and localization of marking sites and / or defects on sheet-like and linear products, comprising the following process steps:

1. (A) providing at least one device according to the invention, comprising
   • at least one transparent or opaque static counter-bearing layer which extends over the entire circumference and over the entire or essentially entire transverse length of the at least one detector roller or over the entire or substantially entire transverse length of the at least one detector beam, as the lowermost layer,
   • at least one first transparent or opaque adhesive layer extending over the entire circumference and over the entire or substantially entire transverse length or over the entire or substantially entire transverse length of the counter-bearing layer,
   • at least one static sensor layer which extends over the entire circumference and over the entire or substantially entire transverse length or over the entire or substantially entire transverse length of the first adhesive layer,
   • at least one second transparent or opaque adhesive layer extending over the entire circumference and over the entire or substantially entire transverse length or over the entire or substantially entire transverse length of the static sensor layer,
   • at least one transparent or opaque elastic-dynamic transfer layer which extends over the entire circumference and over the entire or substantially entire transverse length or over the entire or substantially entire transverse length of the second adhesive layer,
   • at least one device for supplying the sensor layer with electrical voltage,
   • at least one device for transmitting at least one electrical and / or optical signal which can be generated by the sensor layer, and
   • - At least one device for evaluating the transferable from the at least one device at least one electrical and / or optical signal with respect to the X / Y coordinates of the at least one marking point and / or the at least one defect
   • an opaque or transparent fixed or rotating counterpart which extends over the entire transverse length of the detector roller or the detector beam, and
   • - A gap with static or variable delivery, between the detector roller and the counterpart.
2. (B) moving at least one sheet-like or linear material with at least one defect through the gap,
3. (C) deformation of the at least one transfer layer by the at least one defect,
4. (D) changing the voltage in the at least one sensor layer by the at least one marking location and / or the at least one defect and generating at least one electrical and / or optical signal,
5. (E) transmission of the at least one electrical and / or optical signal
6. (F) to a device for evaluating the at least one electrical and / or optical signal with respect to the X / Y coordinates of the at least one marking location and / or the at least one defect in the device.

In the following, this method will be referred to as "inventive method".

Last but not least, the use of the device according to the invention and the method according to the invention for the quality control, the identification, the calibration and / or the adjustment of sheet-like and linear goods ( 3 ), the rejection of rejects, the removal of defects ( 3.1 ) and for controlling devices and methods.

In the following, this use is referred to as "use according to the invention".

Advantages of the invention

In view of the prior art, it was surprising and unforeseeable for the skilled person that the object underlying the present invention could be achieved by means of the device according to the invention, the method according to the invention and the use according to the invention.

In particular, it was surprising that with the device according to the invention and the method according to the invention in planar or linear structures or defined topographical structures defects such as unilateral or bilateral elevations and thickenings and holes or cracks over the entire surface and length both at a standstill and at high transport speeds or feed speeds of the sheet-like and linear goods of more than 1000 m / min could be detected and located. It was possible to detect thickness changes below 1 μm down to 0.1 μm.

Furthermore, it is surprising that the device according to the invention and the method according to the invention not only detect defects, but also quality control, identification, calibration and / or adjustment of sheetlike and linear goods by means of marking points, rejection of rejects, removal Of defects and for the control of devices and methods could be used with advantage.

A further advantage was that the device according to the invention was extremely variable in its construction and could thus be perfectly adapted to special problems. It also showed no inertia and could be operated both partially and completely. Their sensor layer did not come into direct contact with the material to be detected and was deformed only slightly, if at all, during the detection. A change in direction, such as switches or paddles did not occur in the inventive device and the method according to the invention. The width of the device according to the invention was not limited, since it could be constructed modulated, so that almost any width could be covered. The evaluation of the signals took place directly in the device according to the invention and could also be forwarded directly in near real time to a higher-level system for visualization, archiving and control. The device according to the invention was able to make pressure measurements at various positions during a passing planar or linear material both in the transport direction and transversely thereto. The proportional increases or decreases could be measured or detected almost in real time, which is why they could also serve as manipulated variables. The crowns and surface loads, for example, of guide rollers, coating rollers, embossing rollers, positioning rollers, metering rollers, control rollers or sensor rollers could be recorded in detail over the entire surface or almost entire surface area, ie 100%.

Detailed description of the invention

The device according to the invention is used for the full-surface detection and localization of marking points and / or defects on sheet-like and linear goods.

In the context of the present invention, "full area" means that, for example, marking locations and / or defects can be detected on the entire or substantially entire area of a film. "Location" means the determination of the X / Y coordinates of a defect, for example, on a slide.

These marks and / or imperfections may be unilateral or bilateral thickenings, bumps, specks, and / or depressions, cracks and or holes.

The sheet-like goods can be metal sheets, paper, cardboard, webs of textile products, sheets and films of natural and synthetic polymers, boards of wood or wood-based materials, plasterboard, gypsum fiberboard, glass sheets, glass plates, veneers and coatings and / or tapes These materials and / or composites of at least two of these sheet-like goods act.

However, the sheet-like goods described above may also have on their surface a three-dimensional topology or landscape such as grooves, pyramids, cuboids or hemispheres whose uniformity in shape, size and distribution over the surface can also be characterized and controlled by means of the device according to the invention.

• - Naturfasern und synthetischen Fasern wie
  • Samenfasern:
    • wie Baumwolle (CO), Kapok (KP), Pappelflaum, Akon, wie Bambusfaser, Brennnessel, Hanffaser (HA), Jute (JU), Kenaf, Leinen (LI), Hopfen, Ramie (RA), Hanf,
  • Hartfasern:
    • wie Ananas, Caroá, Curauä, Henequen, Neuseeländer Flachs, Sisal (SI), Kokos (CC),
  • Wollen und feine Tierhaare:
    • wie, Wolle von Schafen (WO), Alpaka, Lama, Vikunja, Guanako, Angora (WA), Kanin, Kamelhaar (WK), Kaschmir (WS) und Mohair (WM),
  • grobe Tierhaare:
    • wie Rinderhaar, Rosshaar und Ziegenhaar,
  • Seiden:
    • wie Maulbeerseide (SE), Tussahseide (ST) und Muschelseide,
  • Mineralfasern:
    • wie Erionit, Attapulgit, Sepiolith und Wollastonit,
  • Fasern aus natürlichen Polymeren:
    • wie cellulosische Fasern, wie Viskose (CV), Modal (CMD), Lyocell (CLY), Cupro (CUP), Acetat (CA) und Triacetat (CTA),
  • Gummifasern:
    • wie zum Beispiel Gummi.
  • Pflanzeneiweißfasern:
    • wie Sojaproteinfaser und Zein
  • Tiereiweißfasern:
    • wie Caseinwolle.
  • Fasern auf Basis Stärke bzw. Glukose:
    • wie Polylactidfasern (PLA), Alginatfasern (ALG) und Chitosanfasern,
  • Polykondensationsfasern:
    • wie Polyesterfasern (PES), Polyamidfasern (PA), Polyimidfasern (PI), Polyamidimidfasern (PAI), Polyphenylensulfidfasern (PPS), Polyesterfasern (PE) und Nylonfasern,
  • Polymerisationsfasern:
    • wie Polyacrylnitrilfasern (AN), Polyethylenfasern, Polypropylenfasern, PMMA-Fasern undPVC-Fasern,
  • Polyadditionsfasern:
    • wie Polyurethan (PU),
  • Anorganische Fasern:
    • Glasfasern (GF), Basaltfasern, Kohlenstofffasern (CF), Graphenfasern, Carbonnaotubes, Carbonanohorns, Keramikfaser, und Kieselsäurefasern,
  • Sonstige Fasern:
    • Aramidfasern, Kevlarfasern, Ligninfasern, Cellulosefasern, Faserverbundstoffe, Textilen, Textilfasern, Gewebefasern, Pyrolysefasern und Nanocellulose.
• - Metallen und Halbmetallen wie Scandium, Yttrium, Lanthan, Lanthanidmetalle Titan, Zirkonium, Hafnium, Vanadium, Niob, Tantal, Chrom, Molybdän, Wolfram, Mangan, Rhenium, Eisen, Ruthenium, Osmium, Kobalt, Rhodium, Iridium, Nickel, Palladium, Platin, Kupfer, Silber, Gold, Zink, Kadmium, Bor, Aluminium, Gallium, Indium, Thallium, Silicium, Germanium, Zinn, Blei, Antimon und Bismut sowie um Legierungen von mindestens zwei dieser Metalle und Halbmetalle,

The linear goods can be wires, threads, fibers and ropes

• - Natural fibers and synthetic fibers like
  • Seed fibers:
    • such as cotton (CO), kapok (KP), poplar fluff, acon, such as bamboo fiber, nettle, hemp fiber (HA), jute (JU), kenaf, linen (LI), hops, ramie (RA), hemp,
  • Hard fibers:
    • such as Pineapple, Caroá, Curauä, Henequen, New Zealander Flax, Sisal (SI), Coconut (CC),
  • Wool and fine pet hair:
    • like, wool of sheep (WO), alpaca, llama, vicuña, guanaco, angora (WA), kanin, camel hair (WK), cashmere (WS) and mohair (WM),
  • rough pet hair:
    • like cattle hair, horsehair and goat hair,
  • Silk:
    • such as mulberry silk (SE), tussah silk (ST) and seashell silk,
  • Mineral fibers:
    • such as erionite, attapulgite, sepiolite and wollastonite,
  • Fibers made of natural polymers:
    • such as cellulosic fibers, such as viscose (CV), modal (CMD), lyocell (CLY), cupro (CUP), acetate (CA) and triacetate (CTA),
  • Rubber Fibers:
    • such as rubber.
  • Plant protein fibers:
    • like soy protein fiber and zein
  • Animal protein fibers:
    • like casein wool.
  • Fibers based on starch or glucose:
    • such as polylactide fibers (PLA), alginate fibers (ALG) and chitosan fibers,
  • Polykondensationsfasern:
    • such as polyester fibers (PES), polyamide fibers (PA), polyimide fibers (PI), polyamideimide fibers (PAI), polyphenylene sulfide fibers (PPS), polyester fibers (PE) and nylon fibers,
  • Polymerisationsfasern:
    • such as polyacrylonitrile (AN) fibers, polyethylene fibers, polypropylene fibers, PMMA fibers and PVC fibers,
  • Polyadditionsfasern:
    • like polyurethane (PU),
  • Inorganic fibers:
    • Glass fibers (GF), basalt fibers, carbon fibers (CF), graphene fibers, carbon nanotubes, carbonanohorns, ceramic fiber, and silica fibers,
  • Other fibers:
    • Aramid fibers, kevlar fibers, lignin fibers, cellulosic fibers, fiber composites, textiles, textile fibers, fabric fibers, pyrolysis fibers and nanocellulose.
• Metals and semimetals such as scandium, yttrium, lanthanum, lanthanide metals titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, manganese, rhenium, iron, ruthenium, osmium, cobalt, rhodium, iridium, nickel, palladium, Platinum, copper, silver, gold, zinc, cadmium, boron, aluminum, gallium, indium, thallium, silicon, germanium, tin, lead, antimony and bismuth, and alloys of at least two of these metals and semi-metals,

act.

The wires, fibers, threads and ropes described above may also have regular variations in their thickness or diameter, which may also be characterized and controlled by the device according to the invention in terms of regularity of spacing, thickness and shape.

The above-described sheet-like and linear goods may also be coated, painted, decorated and / or printed.

The device according to the invention comprises at least one, in particular one, transparent and / or opaque rotatable detector roller with a drive shaft arranged centrally at its one end and an extension arranged centrally along the longitudinal axis for mounting the detector roller at the other end. As storage, for example, two juxtaposed, freely rotatable rubber rollers serve.

Preferably, the main body of the detector roller is a cylindrical hollow body made of glass, metals such as steel, stainless steel or aluminum or hard thermoplastic and thermosetting opaque or transparent plastics such as ABS, polyoxymethylene, polyethylene, polypropylene, polyurethane, polycarbonate, polyamide, polyvinyl chloride, polyester, polymethyl methacrylate, polyphenylene ether , Polyamide-polycarbonate blends, polystyrene-polyphenylene ether blends, polyesteramide, polyimide, polyamideimide, polyethersulfide, polyethersulfone, polyketone, polyetherketone or polytetrafluoroethylene or hardwoods such as abachi, afzelia, acacia, bamboo, bangkirai, cumaru, Douglas fir, ebony, eucalyptus, spruce , Garapa, Ipe Lapacho, Iroko, Jatoba, Kambala, Pine, Larch, Mahogany, Massaranduba, Walnut, Olive, Rosewood, Robinia, Siberian Larch, Tatajuba, Teak and Elm, as well as composites of at least two of these materials. The cylindrical hollow body may also be filled with a foam such as Styrofoam or polyurethane foam. When materials of low specific gravity are used, the detector roller can also be compact.

The length and the diameter of the cylindrical hollow body can vary very widely and depend on the dimensions of the goods to be detected. Preferably, the length is 10 cm to 300 cm. If necessary, however, several cylindrical hollow bodies can be put together to form longer units. Preferably, the diameter is 5 cm to 60 cm. For special cases even shorter cylindrical hollow bodies with even smaller and larger diameter can be used.

The at least one, in particular one, opaque or transparent, fixed detector beam preferably also consists of the materials described above, wherein it may be a hollow body, a compact body or a filled with a foam hollow body.

The length, height, width and shape of the base body of the detector beam can also vary very widely and are particularly dependent on the dimensions of the goods to be detected. Preferably, the base body of the detector beam has a square, rectangular, semicircular or trapezoidal cross section, wherein the side on which the sensor arrangement is arranged, is planar or curved. Preferably, the length is 10 cm to 300 cm. If necessary, however, several basic bodies can be put together to form longer units. Preferably, the width of the side on which the sensor arrangement is arranged is 5 cm to 20 cm. The height is generally 2 cm to 10 cm. For special cases, bodies with larger or smaller dimensions can also be used.

The sensor arrangement of the device according to the invention comprises, as the lowermost layer, at least one, in particular one, transparent or opaque static counter-bearing layer which extends over the entire circumference and the entire or substantially entire transverse length of the detector roller or over the entire or substantially entire transverse length of the at least one in particular, a detector beam extends.

In the context of the present invention, "substantially complete" means that at least 95% to 99.5% of the respective circumference and the relevant transverse length are covered by the counter-bearing layer.

The counter-bearing layer may be composed of multiple layers, wherein the above-described transparent or opaque materials may be used. The surface of the base body of the detector roller and the detector beam can also serve as an abutment layer, so that the counter-bearing layer is seamless.

The counter-bearing layer is covered over its entire circumference and over the entire or substantially entire transverse length or over the entire or substantially entire transverse length of the counter-bearing layer of at least one, in particular an opaque or transparent first adhesive layer. Preferably, the adhesive layer is composed of an adhesive selected from the group consisting of physically setting adhesives, chemically curing adhesives and pressure-sensitive adhesives.

Examples of suitable adhesives are biopolymers, polysaccharides, chemically curing adhesives, polymerization adhesives, cyanoacrylate adhesives, methylmethacrylic adhesives, anaerobic adhesives, unsaturated polyester adhesives (UP resins), radiation curing adhesives, polycondensation adhesives, phenol-formaldehyde resin adhesives, silicone-silane crosslinked Polymer adhesives Polymide adhesives, polysulfide adhesives, polyaddition adhesives, epoxy resin adhesives, polyurethane adhesives, silicone adhesives, silicone-polyisocyanate adhesives, physical bonding adhesives, solvent-borne adhesives, contact adhesives, dispersion adhesives, plastisols, non-solidifying adhesives, pressure-sensitive adhesives, cement, cement-based gypsum-based dot bonds, water glass, lignin, physical bonding adhesives, urea-formaldehyde adhesives (UF), melamine-urea-formaldehyde adhesives (MUF), polymeric isocyanate adhesives (PMDI), polyvinyl acetate adhesives (UF) PVAC), kaurite and / or casein.

However, double-sided adhesive tapes such as Tesa® double-sided adhesive tape or the double-sided adhesive tapes of 3M® VHB® adhesive tapes 4905, 4910, 4915 and 4918 can also be used.

The first adhesive layer connects the counter-bearing layer to at least one, in particular a static sensor layer, which extends over the entire circumference and the entire or substantially entire transverse length or over the entire or substantially entire transverse length of the first adhesive layer.

Preferably, the static sensor layer comprises at least one, in particular a piezoelectric film, at least one, in particular a, seamless piezoelectric layer, at least one, in particular an electromechanical EMFi film or at least one, in particular a piezoluminszente-pyroluminescent PPL layer, in which a piezoelectric Film or layer or an electro-mechanical EMFi film with an LED film or an OLED film is combined (see also the American patent US 5,446,334 . 8th ).

An example of a piezoelectric film is KF Piezo Film made by Kureha Corporation of beta-polyvinylidene difluoride (PVDF).

An example of a seamless piezoelectric layer is a lead zirconate titanate (PZT) thin film produced by Pulsed Laser Deposition (PLD).

An example of an electromechanical EMFi film is the electromechanical Plain Emfit film from the company Emfit with a thickness of 70-80 μm (cf. Satu Rjala and Jukka Lekkala, "PVDF and EMFi sensor materials -A comparative study", Procedia Engineering 5 (2010), 862-865) ,

The static sensor layer is provided with at least one, in particular one, transparent or opaque second adhesive layer, which extends over the entire circumference and over the entire or substantially entire transverse length or over the entire or substantially entire transverse length of the static sensor layer. Preferably, the second adhesive layer is composed of the above-described adhesive layer materials.

The second adhesive layer is covered with at least one, in particular one, transparent or opaque, elastic-dynamic transfer layer which extends over the entire circumference and the entire or substantially entire transverse length or over the entire or substantially entire transverse length of the second adhesive layer.

The transfer layer is composed of at least one, in particular one, reversibly elastically deformable, thermoplastic elastomers and / or at least one entropy-elastic or rubber-elastic elastomers. Examples of suitable thermoplastic elastomers (TPE) are styrene block copolymers. Examples of suitable entropy-elastic elastomers are natural rubber, synthetic rubber, rubber and silicone rubber. The transfer layer may be composed of several layers of these materials.

As for the construction of the sensor arrangement described above, a plurality Different materials are available, the sensor arrangements can be adjusted very precisely to the respective present detection problem. This is a further particular advantage of the device according to the invention.

The detector roller or the detector bar furthermore contains at least one, in particular one, device for supplying the sensor layer with electrical voltage. Preferably, the sensor layer is supplied by means of the electrical induction contactless with electrical voltage.

worin D den Durchmesser der Detektorwalze, K die Auflösung in Laufrichtung oder Transportrichtung (5), a die Anzahl der Inkremente pro Umdrehung und n die Anzahl der Umdrehungen/Minute bezeichnen.Furthermore, the detector roller or the detector bar comprises at least one, in particular one, device for transmitting at least one electrical and / or optical signal generated by the sensor layer to at least one, in particular one, device for evaluating the detected electrical and / or optical signal with respect to the X / Y-coordinates of the defects. Preferably, the device for evaluation is a microcontroller. Preferably, the electrical signal is transmitted by radio and / or electrical contacts and the optical signal by optical conductors. Preferably, the evaluation is carried out according to equation (i): $$K=\mathbf{D}\pi /a\cdot n$$

where D is the diameter of the detector roller, K is the resolution in the direction of travel or transport direction (FIG. 5 ), a is the number of increments per revolution, and n is the number of revolutions / minute.

In the apparatus according to the invention, the X / Y coordinates of the government offices and / or defects are transmitted by the microcontroller by radio to at least one, in particular, a data processing system for the purpose of visualization, control and archiving. If necessary, the signals can be printed out or made visible on a screen.

The device according to the invention further comprises at least one, in particular one, opaque or transparent, stationary or rotating counterpart, which extends over the entire transverse length of the detector roller or the detector beam and forms with this or this a gap with static or variable delivery, through the the sheet-like or linear goods to be detected are transported. The transport can be effected by at least one, in particular one, electronically controlled pulling device or by the rotation of the detector roller and rotating counterpart.

• - eine transparente und/oder opake, drehbare Walze,
• - eine zweite transparente und/oder opake, drehbare Detektorwalze,
• - ein transparenter und/oder opaker, feststehender Balken oder
• - ein zweiter transparenter und/oder opaker, feststehender Detektorbalken

sein. Hierdurch ist es möglich, in der erfindungsgemäßen Vorrichtung eine Vielzahl von Kombinationen der wesentlichen Bauteile zu verwenden, sodass die erfindungsgemäße Vorrichtung hervorragend auf das jeweils vorliegende Detektionsproblem eingestellt werden kann. The counterpart may preferably

• a transparent and / or opaque rotatable roller,
• a second transparent and / or opaque, rotatable detector roller,
• a transparent and / or opaque, fixed beam or
• a second transparent and / or opaque, fixed detector bar

be. This makes it possible to use in the device according to the invention a plurality of combinations of the essential components, so that the device according to the invention can be perfectly adjusted to the respective present detection problem.

• - eine drehbare Detektorwalze und eine drehbare Gegenwalze,
• - eine drehbare Detektorwalze und eine zweite drehbare Detektorwalze als Gegenstück,
• - eine drehbare Detektorwalze und ein feststehender Balken,
• - eine drehbare Detektorwalze und ein feststehender Detektorbalken als Gegenstück,
• - ein feststehender Detektorbalken und eine drehbare Gegenwalze,
• - ein feststehender Detektorbalken und eine drehbare Detektorwalze als Gegenstück,
• - ein feststehender Detektorbalken und ein feststehender Balken und
• - ein feststehender Detektorbalken und ein zweiter feststehender Detektorbalken,

wobei die genannten Bauteile in beliebiger Reihenfolge übereinander angeordnet sein können.Examples of such combinations are

• a rotatable detector roll and a rotatable counter roll,
• a rotatable detector roller and a second rotatable detector roller as a counterpart,
• a rotatable detector roller and a fixed beam,
• a rotatable detector roller and a stationary detector beam as counterparts,
• a fixed detector bar and a rotatable counter-roller,
• a fixed detector bar and a rotatable detector roller as a counterpart,
• a fixed detector bar and a fixed bar and
• a fixed detector bar and a second fixed detector bar,

wherein said components may be stacked in any order.

The above-described device according to the invention serves the method according to the invention.

• A) Bereitstellen mindestens einer erfindungsgemäßen Vorrichtung, enthaltend
  • - mindestens eine transparente oder opake statische Gegenlagerschicht, die sich über den gesamten Umfang und die gesamte oder im Wesentlichen gesamte Querlänge der mindestens einen Detektorwalze oder über die gesamte oder im Wesentlichen gesamte Querlänge des mindestens einen Detektorbalkens erstreckt, als unterste Schicht,
  • - mindestens eine erste transparente oder opake Haftschicht, die sich über den gesamten Umfang und die gesamte oder im Wesentlichen gesamte Querlänge oder über die gesamte oder im Wesentlichen gesamte Querlänge der Gegenlagerschicht erstreckt,
  • - mindestens eine statische Sensorschicht, die sich über den gesamten Umfang und die gesamte oder im Wesentlichen gesamte Querlänge oder über die gesamte oder im Wesentlichen gesamte Querlänge der ersten Haftschicht erstreckt,
  • - mindestens eine zweite transparente oder opake Haftschicht, die sich über den gesamten Umfang und die gesamte oder im Wesentlichen gesamte Querlänge oder über die gesamte oder im Wesentlichen gesamte Querlänge der statischen Sensorschicht erstreckt,
  • - mindestens eine transparente oder opake elastisch-dynamische Transferschicht, die sich über den gesamten Umfang und die gesamte oder im Wesentlichen gesamte Querlänge oder über die gesamte oder im Wesentlichen gesamte Querlänge der zweiten Haftschicht erstreckt,
  • - mindestens einer Vorrichtung zur Versorgung der Sensorschicht mit elektrischer Spannung,
  • - mindestens eine Vorrichtung zur Übertragung mindestens eines von der Sensorschicht erzeugbaren elektrischen und/oder optischen Signals und
  • - mindestens eine Vorrichtung zur Auswertung des von der mindestens einen Vorrichtung übertragbaren mindestens einen elektrischen und/oder optischen Signals bezüglich der X/Y-Koordinaten der mindestens einen Markierungsstelle und/oder der mindestens einen Fehlstellen,
  • - ein opakes oder transparentes, feststehendes oder rotierendes Gegenstück, das sich über die gesamte Querlänge der Detektorwalze oder des Detektorbalkens erstreckt, und
  • - einen Spalt mit statischer Zustellung oder variabler Zustellung, zwischen der Detektorwalze und dem Gegenstück.
• (B) Bewegung mindestens einen flächenförmigen oder linienförmigen Gutes mit mindestens einer Fehlstelle durch den Spalt,
• (C) Deformation der mindestens einen Transferschicht durch die mindestens eine Fehlstelle,
• (D) Änderung der Spannung in der mindestens einen Sensorschicht durch die mindestens eine Fehlstelle und Erzeugung mindestens eines elektrischen und/oder optischen Signals,
• (E) Übertragung des mindestens einen elektrischen und/oder optischen Signals
• (F) zu einer Vorrichtung zur Auswertung des mindestens einen elektrischen und/oder optischen Signals bezüglich der X/Y-Koordinaten der mindestens einen Markierungsstelle und/oder dem mindestens einen Fehlstelle in der Vorrichtung.

The method according to the invention comprises the following method steps:

• A) providing at least one device according to the invention, comprising
  • at least one transparent or opaque static counter-bearing layer which extends over the entire circumference and over the entire or essentially entire transverse length of the at least one detector roller or over the entire or substantially entire transverse length of the at least one detector beam, as the lowermost layer,
  • - at least one first transparent or opaque adhesive layer extending over the entire circumference and over the entire or substantially entire transverse length or over the entire or substantially entire transverse length of the counter-bearing layer,
  • at least one static sensor layer which extends over the entire circumference and over the entire or substantially entire transverse length or over the entire or substantially entire transverse length of the first adhesive layer,
  • at least one second transparent or opaque adhesive layer extending over the entire circumference and over the entire or substantially entire transverse length or over the entire or substantially entire transverse length of the static sensor layer,
  • at least one transparent or opaque elastic-dynamic transfer layer which extends over the entire circumference and over the entire or substantially entire transverse length or over the entire or substantially entire transverse length of the second adhesive layer,
  • at least one device for supplying the sensor layer with electrical voltage,
  • at least one device for transmitting at least one electrical and / or optical signal which can be generated by the sensor layer, and
  • at least one device for evaluating the at least one electrical and / or optical signal which can be transmitted by the at least one device with respect to the X / Y coordinates of the at least one marking point and / or the at least one defect,
  • an opaque or transparent fixed or rotating counterpart which extends over the entire transverse length of the detector roller or the detector beam, and
  • - A gap with static or variable delivery, between the detector roller and the counterpart.
• (B) moving at least one sheet-like or linear material with at least one defect through the gap,
• (C) deformation of the at least one transfer layer by the at least one defect,
• (D) changing the voltage in the at least one sensor layer by the at least one defect and generating at least one electrical and / or optical signal,
• (E) transmission of the at least one electrical and / or optical signal
• (F) to a device for evaluating the at least one electrical and / or optical signal with respect to the X / Y coordinates of the at least one marking location and / or the at least one defect in the device.

The evaluation in method step (F) is preferably carried out as described above according to equation (i).

In the following, in step (G), the X / Y coordinates of the marking locations and / or defects are transmitted by radio to at least one, in particular a data processing system for the purpose of visualization, control and archiving.

With the aid of the method according to the invention, the marking sites and / or defects in the most diverse sheet-like and linear products can be detected very accurately in real time, which is why the device and the method according to the invention are outstandingly well suited for the use according to the invention, in particular for quality control, for rejection of scrap, can be used to eliminate defects and to directly control other devices and methods.

list of figures

• 1 eine Draufsicht auf eine Detektorwalze 1 in perspektivischer Darstellung,
• 2 (a) eine Draufsicht auf einen Querschnitt durch einen Ausschnitt aus einer Sensoranordnung S,
• 2 (b) eine Draufsicht auf einen Querschnitt durch einen Ausschnitt aus einer Sensoranordnung S in perspektivischer Darstellung,
• 3 eine Draufsicht auf einen Querschnitt durch eine Ausführungsform einer Vorrichtung V zur vollflächigen Detektion und Verortung von Fehlstellen 3.1 auf flächenförmigen und linienförmigen Gütern 3,
• 4 eine Draufsicht auf einen Querschnitt durch eine weitere Ausführungsform einer Vorrichtung V zur vollflächigen Detektion und Verortung von Fehlstellen 3.1 auf flächenförmigen und linienförmigen Gütern 3 und
• 5 Darstellung eines elektrischen oder optischen Signals aus der Vorrichtung V.

In the following, the invention is based on the 1 to 5 explained. Both 1 to 5 they are schematic representations that do not limit the invention, but explain the structure of the device according to the invention and the principle of operation of the method according to the invention. The representations do not therefore have to be true to scale. Show it:

• 1 a plan view of a detector roller 1 in perspective,
• 2 (a) a plan view of a cross section through a portion of a sensor array S .
• 2 B) a plan view of a cross section through a portion of a sensor array S in perspective,
• 3 a plan view of a cross section through an embodiment of a device V for full surface detection and Location of defects 3.1 on flat and linear goods 3 .
• 4 a plan view of a cross section through a further embodiment of a device V for full surface detection and localization of defects 3.1 on flat and linear goods 3 and
• 5 Representation of an electrical or optical signal from the device V ,

LIST OF REFERENCE NUMBERS

1

Detektorwalze oder Detektorbalken

1.1

Statische Gegenlagerschicht

1.2

Mikrocontroller

1.3

Kontaktlitze der statischen Sensorschicht 1.5 oder optischer Detektor

1.4

Vorrichtung zur elektrischen Induktion

1.5

Statische Sensorschicht

1.5.1

Piezopyroelektrische Schicht (PPE)

1.5.2

Pyrolumineszente Schicht (LED, OLED)

1.6

Elastisch-dynamische Transferschicht

1.7.1

Erste Haftschicht

1.7.2

Zweite Haftschicht

1.8

Antriebswelle

1.8.1

Fortsatz

1.9

Drehrichtung

1.10

Signalübertragung

1.11

Optisches Signal

1.12

Opake Wand

1.13

Transparente abschließende Elektrodenschicht

1.14

Innere Elektrodenschicht

1.15

Obere Elektrodenschicht

2

Gegenwalze

2.1

Drehrichtung

3

Folienbahn

3.1

Fehlstelle oder Markierungsstelle

3.2

Druck und Deformation von Transferschicht 1.6

4

Plattendetektor

5

Laufrichtung

6

Signal einer Fehlstelle

6.1

Signal vor der Fehlstelle

6.2

Signal an der Fehlstelle

6.3

Signal nach der Fehlstelle

7

Walzenspalt

7.1

Zustellung des Walzenspalts 7

7.1.1

Statische Zustellung

7.1.2

Variable Zustellung

A

Ausschnitt

DR

Drucker

PC

Datenverarbeitungsanlage

S

Sensoranordnung

V

Vorrichtung zur vollflächigen Detektion und Verortung von Fehlstellen 3.1 auf flächenförmigen und linienförmigen Gütern 3

X

Größe der Fehlstelle

Y

Position in Laufrichtung 5

In the 1 to 5 the reference signs have the following meaning:

1

Detector roll or detector bar

1.1

Static counter layer

1.2

microcontroller

1.3

Contact wire of static sensor layer 1.5 or optical detector

1.4

Device for electrical induction

1.5

Static sensor layer

1.5.1

Piezo-pyroelectric layer (PPE)

1.5.2

Pyroluminescent layer (LED, OLED)

1.6

Elastic-dynamic transfer layer

1.7.1

First adhesive layer

1.7.2

Second adhesive layer

1.8

drive shaft

1.8.1

extension

1.9

direction of rotation

1.10

signal transmission

1.11

Optical signal

1.12

Opaque wall

1.13

Transparent final electrode layer

1.14

Inner electrode layer

1.15

Upper electrode layer

2

backing roll

2.1

direction of rotation

3

sheet

3.1

Defect or marker

3.2

Printing and deformation of transfer layer 1.6

4

plate detector

5

direction

6

Signal of a defect

6.1

Signal before the fault

6.2

Signal at the defect

6.3

Signal after the defect

7

nip

7.1

Delivery of the nip 7

7.1.1

Static delivery

7.1.2

Variable delivery

A

neckline

DR

printer

PC

Data processing system

S

sensor arrangement

V

Device for the full-surface detection and localization of defects 3.1 on sheet-like and linear goods. 3

X

Size of the defect

Y

Position in running direction 5

Detailed description of the figures

FIGS. 1, 2 (a) and (b), 3 and 5

The roller surface of the detector roller 1 of the 1 had a length of 50 cm. The diameter of the detector roller 1 was 12 cm. For weight reasons, the detector roller was 1 constructed from a suitably dimensioned anodized aluminum tube with a wall thickness of 2 mm. In the perspective view of 1 was at the left end of the detector roller 1 a drive shaft 1.8 arranged in the middle. The right end of the detector roller 1 had a centrally located microcontroller 1.2 on that with the detector roller 1 mitrotierte. The microcontroller 1.2 received the from the static sensor layer 1.5 obtained electrical signals via contact strands 1.3 , The entire sensor arrangement S (see. 2 (a) and (b) was passed through the centered device 1.4 inductively supplied with electric current. The detector roller 1 pointed at its right end a centrally arranged extension 1.8.1 with a circular cross section, which was mounted on two freely rotating hard rubber rollers (not shown).

In a first embodiment of the detector roller 1 was the layered sensor array S constructed as follows. A 0.5 cm thick, seamless static counter bearing layer 1.1 made of steel was adhesively bonded to the surface of the aluminum tube. The static sensor layer 1.5 was with a first adhesive layer 1.7.1 not made of an epoxy resin adhesive overlapping, but shock to shock with the static abutment layer 1.1 fully connected. As a static sensor layer 1.5 a KF Piezo film from Kureha Corporation of beta-polyvinylidene difluoride (PVDF) was used. The static 0.3 cm thick elastic-dynamic transfer layer 1.6 from a thermoplastic Elastomers (TPE, styrene block copolymer from Kraiburg) was full-surface with a second adhesive layer 1.7.2 from an epoxy resin adhesive to the surface of the sensor layer 1.5 glued (cf. 2 (a) and (b)).

In another embodiment, a 0.4 cm thick, seamless static counter bearing layer 1.1 Made of stainless steel adherent to the surface of the aluminum tube. The static sensor layer 1.5 was with a first adhesive layer 1.7.1 from a pressure-sensitive adhesive by the surface tack (Tack) with the counter-bearing layer 1.1 fully connected. As a static sensor layer 1.5 A lead zirconate titanate (PZT) thin film was seamlessly deposited on the first adhesive layer by pulsed laser deposition (PLD) 1.7.1 applied. This in turn was done with a second adhesive layer 1.7.2 covered the sensor layer 1.5 with a 1 cm thick, rubber-elastic rubber layer as a transfer layer 1.6 Association (cf. 2 (a) and (b)).

In a third embodiment, a 0.4 cm thick, seamless static counter bearing layer 1.1 Made of stainless steel adherent to the surface of the aluminum tube. The static sensor layer 1.5 was with a first adhesive layer 1.7.1 from a pressure-sensitive adhesive by the surface tack (Tack) with the counter-bearing layer 1.1 fully connected. As a static sensor layer 1.5 An electromechanical Plain Emfit film from Emfit with a thickness of 70-80 μm was used (cf. Satu Rjala and Jukka Lekkala, "PVDF and EMFi sensor materials - A comparative study", Procedia Engineering 5 (2010), 862-865) , This in turn was made with a second adhesive layer 1.7.2 covered the sensor layer 1.5 with a 1 cm thick, rubber-elastic silicone layer (silicone rubber from Wacker) chemistry as a transfer layer 1.6 Association (cf. 2 (a) and (b)).

The operation of the devices V for full surface detection and localization of defects 3.1 on sheet-like goods 3 is through the 3 clarified. The device V in one embodiment comprises a detector roller 1 according to the first embodiment described above, in a further embodiment, a detection roller 1 according to the second embodiment described above and the still another embodiment, a detection roller 1 according to the third embodiment described above.

The detector roller 1 each turned in the direction of rotation 1.9 , and its complementary mating roll 2 each turned in the direction of rotation 2.1 , The counter roll 2 was a stainless steel shell with a smooth ground surface and the same dimensions as the detector roller 1 , The detector roller 1 and the counter roll 2 formed a nip 7 whose delivery 7.1 . 7.1.1 was static and on a provided for detection, 500 micron thick polyethylene terephthalate 3 with film defects 3.1 (one-sided and bilateral thickening, specks, cracks, depressions and holes) was set.

In another embodiment, the delivery was 7.1 . 7.1.2 of the nip 7 variable, so that the nip 7 to a varying thickness of a provided for detection 600 micron thick polyurethane film 3 with film defects 3.1 (one-sided and two-sided thickening, specks, cracks, depressions and holes) could be adjusted and / or the pressure of the rollers 1 and 2 could be optimally adapted.

In both embodiments, the beginning and end of the transported films 3 using a plate detector 4 measured.

In both embodiments, the films were 3 in the direction of travel 5 through the nip 7 guided. If, for example, a punctual thickening 3.1 the nip 7 happened, she practiced over the transfer layer 1.6 and the adhesive layer 1.7.2 a pressure on the piezoelectric sensor layer 1.5 or the electromechanical EMFi layer, whereby at the pressure point, a change in voltage of the sensor layer 1.5 resulted, using the contact strands 1.3 tapped as a signal and to the microcontroller 1.2 was passed to the evaluation.

worin D den Durchmesser der Detektorwalze (1), K (Kappa) die Auflösung in Laufrichtung oder Transportrichtung (5), a die Anzahl der Inkremente pro Umdrehung (Z. B. 8192) und n die Anzahl der Umdrehungen/Minute bezeichnen.In the microcontroller 1.2 the evaluation was made with respect to the X / Y coordinates of the defect 3.1 according to equation (i): $$K=\mathbf{D}\pi /a\cdot n$$

where D is the diameter of the detector roller ( 1 ), K (kappa) the resolution in the direction of travel or transport direction ( 5 ), a is the number of increments per revolution (eg 8192) and n is the number of revolutions / minute.

The resulting signals in this way 6 (see. 5 ) of the defect were radio by a data processing system PC (see. 4 ) for visualization, control of actuators and archiving forwarded. The visualization took place, for example, in the 5 shown way, the signal 6 into a signal 6.1 in front of the defect, a signal 6.2 at the defect and a signal 6.3 clearly visible divided after the defect. The signals 6 could still through a printer DR (see. 4 ).

FIG. 4

In the device V of the 4 became an arrangement of a detector bar 1 and one above the horizontal, sheet-like sensor arrangement S arranged counter-roller 2 used. As a counter roll 2 became the hollow roll described above 2 used in stainless steel. She turned in the direction of rotation 2.1 and formed with the surface of the horizontal planar sensor array S a gap 7 through which one is used to detect defects 3.1 (one-sided and bilateral thickening, specks, cracks, depressions and holes) provided, 500 micron thick polyethylene terephthalate 3 was transported by means of an electronically controlled traction device (not shown) (see section A ).

The detector bar 1 was made of opaque metal walls 1.12 and the horizontal, planar sensor arrangement S educated. In the cavity of the detector beam 1 was spatially just below the point of contact of the counter roll 2 with the polyethylene terephthalate film 3 and the sensor assembly S an optical detector 1.3 arranged, that of the sensor layer S emitted optical signals 1.11 detected and sent to a microcontroller 1.2 who evaluated them and wirelessly to a data processing system PC for visualization, archiving and control purposes. The signals 1.11 could still by means of a printer DR (see the ways of signal transmission 1.10 ; 5 , Signal 6 ).

The enlargement of the section A shows the structure of the sensor arrangement S in detail.

The counter roll 2 squeezed through the gap 7 running polyethylene terephthalate film 3 against the 1 cm thick, elastic-dynamic transfer layer 1.6 made of silicone rubber from Wacker Chemie. At the passage of a defect 3.1 such as thickening, this caused a deformation of the transfer layer 1.6 , whereby punctually a pressure 3.2 on the static sensor layer 1.5 was exercised. The static sensor layer 1.5 was through the adhesive layers 1.7.1 and 1.7.2 from an anaerobic adhesive (Permabond® anaerobic adhesives from Bodo Müller Chemie) with the transfer layer 1.6 connected.

• - die zweite Haftschicht 1.7.2,
• - eine obere Elektrodenschicht 1.15,
• - ein elektromechanischer Plain Emfit-Film der Firma Emfit einer Dicke von 70-80 µm als piezopyroelektrische Schicht (PPE) 1.5.1,
• - eine innere Elektrodenschicht 1.14,
• - eine pyrolumineszente OLED-Schicht 1.5.2, wie sie beispielsweise für Displays verwendet wird,
• - eine transparente Elektrodenschicht 1.13 aus Indiumzinnoxid (ITO), die mit der inneren Elektrodenschicht 1.14 elektrisch verbunden ist,
• - eine transparente, zweite Haftschicht 1.7.1 und
• - eine Glasscheibe als statische Gegenlagerschicht 1.1.

The actual sensor layer 1.5 In a first embodiment, it had the following structure (see also the American patent US 5,446,334 . 8th ):

• - the second adhesive layer 1.7.2 .
• an upper electrode layer 1.15 .
• an electromechanical Plain Emfit film of the company Emfit of a thickness of 70-80 μm as a piezopyroelectric layer (PPE) 1.5.1 .
• an inner electrode layer 1.14 .
• a pyroluminescent OLED layer 1.5.2 , as used for displays, for example,
• a transparent electrode layer 1.13 made of indium tin oxide (ITO) with the inner electrode layer 1.14 is electrically connected,
• a transparent, second adhesive layer 1.7.1 and
• - A glass plate as a static abutment layer 1.1 ,

In another embodiment, instead of the electromechanical piezopyroelectric layer (PPE) 1.5.1 the KF Piezo movie 1.5.1 from Kureha Corporation of beta-polyvinylidene difluoride (PVDF).

In both embodiments, the punctiform pressure occurred 3.2 in the piezopyroelectric layer (PPE) 1.5.1 locally a voltage change, that of the pyroluminescent OLED layer 1.5.2 was registered and caused locally an optical light signal 1.11 to emit that from the optical detector 1.3 registered and in the microcontroller 1.2 was evaluated as described above, after which the evaluated signal to the data processing system PC and the printer DR was forwarded (ways of signal transmission 1.10 ).

In all the embodiments described above, the flaws 3.1 in the slides 3 in terms of their X / Y coordinates are determined accurately and almost in real time, so that the signals obtained could also be used as manipulated variables.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• WO 2009/101251 A2 [0006]
• EP 1839022 B1 [0007]
• EP 1839023 B1 [0007]
• US 6910376 B2 [0008]
• US 5446334 [0040, 0076]

Cited non-patent literature

• Satu Rjala and Jukka Lekkala, "PVDF and EMFi sensor materials -A comparative study", Procedia Engineering 5 (2010), 862-865) [0043, 0064]

Claims (17)

Device V for full surface detection and localization of marking points and / or defects (3.1) on sheet-like and linear goods (3), comprising - At least one transparent and / or opaque rotatable detector roller (1) with a drive shaft (1.8) or at least one transparent and / or opaque, fixed detector beam (1) containing - At least one transparent or opaque static abutment layer (1.1) extending over the entire circumference and the entire or substantially entire transverse length of the at least one detector roller (1) or over the entire or substantially entire transverse length of the at least one detector beam (1) as the lowest layer, at least one first transparent or opaque adhesive layer (1.7.1) which extends over the entire circumference and over the entire or substantially entire transverse length or over the entire or substantially entire transverse length of the counter-bearing layer (1.1), at least one static sensor layer (1.5) which extends over the entire circumference and over the entire or substantially entire transverse length or over the entire or substantially entire transverse length of the first adhesive layer (1.7.1), at least one second transparent or opaque adhesive layer (1.7.2) which extends over the entire circumference and over the entire or substantially entire transverse length or over the entire or substantially entire transverse length of the static sensor layer (1.5), at least one transparent or opaque elastic-dynamic transfer layer (1.6) which extends over the entire circumference and over the entire or substantially entire transverse length or over the entire or substantially entire transverse length of the second adhesive layer (1.7.2), - At least one device (1.4) for supplying the sensor layer (1.5) with electrical voltage, - At least one device (1.3) for transmitting at least one of the sensor layer (1.5) producible electrical and / or optical signal and at least one device (1.2) for evaluating the at least one electrical and / or optical signal which can be transmitted by the at least one device (1.3) with respect to the X / Y coordinates of the at least one marking location and / or the at least one defect, - An opaque or transparent, fixed or rotating counterpart (2), which extends over the entire transverse length of the detector roller (1) or the detector beam (1), and - A gap (7) with static delivery (7.1.1) or variable delivery (7.1.2), between the detector roller (1) and the counterpart (2). Device V after Claim 1 , characterized in that the counterpart (2) - a transparent and / or opaque, rotatable roller (2), - a second transparent and / or opaque, rotatable detector roller (1), - a transparent and / or opaque, fixed beam ( 2) or - a second transparent and / or opaque, fixed detector bar (1). Device V after Claim 1 or 2 , characterized in that the device V has at least one device for moving the sheet-like goods (3) through the gap (7). Device V according to one of Claims 1 to 3 , characterized in that it comprises at least one of the following combinations: - a rotatable detector roller (1) and a rotatable counter roller (2), - a rotatable detector roller (1) and a second rotatable detector roller (1) as a counterpart (2), - a rotatable detector roller (1) and a stationary beam (2), - a rotatable detector roller (1) and a fixed detector beam (1) as a counterpart (2), - a fixed detector beam (1) and a rotatable counter-roller (2), - a fixed detector bar (1) and a rotatable detector roller (1) as counterpart (2), - a stationary detector bar (1) and a fixed bar (2) and - a fixed detector bar (1) and a second fixed detector bar (1), wherein said components are stacked in any order. Device V according to one of Claims 1 to 4 , characterized in that - at the marking points and / or defects (3.1) in the sheet-like and linear goods (3) to unilateral or bilateral thickening, elevations, specks and / or depressions and / or cracks and / or holes, in the sheet-like goods (3) to metal sheets, paper, cardboard, webs of textile products, sheets and films of natural and synthetic polymers, boards of wood or wood-based materials, gypsum plasterboard, gypsum fiber boards, glass sheets, glass plates, veneers and coatings and / or tapes these materials and / or composites of at least two of these sheet-like goods (3) and - in the linear goods (3) to wires, threads, fibers and ropes of natural fibers and synthetic fibers, glass, metals, carbon and inorganic materials. Device according to one of Claims 1 to 5 , characterized in that the at least one counter-bearing layer (1.1) made of metal, glass, ceramic, glass ceramic and / or plastic is constructed. Device according to one of Claims 1 to 6 , characterized in that the at least one first adhesive layer (1.7.1) and / or the at least second adhesive layer (1.7.2) of at least one adhesive selected from the group consisting of physically setting adhesives, chemically curing adhesives and pressure-sensitive adhesives constructed is or are. Device V according to one of Claims 1 to 7 , characterized in that the at least one static sensor layer (1.5) of at least one piezoelectric film, at least one seamless piezoelectric layer, at least one electromechanical EMFi film or at least one piezoluminszentenpyroluminescent PPL layer is constructed. Device V according to one of Claims 1 to 8th , characterized in that the at least one transparent or opaque, elastic-dynamic transfer layer (1.6) consists of at least one reversibly elastically deformable thermoplastic elastomer and / or at least one entropy-elastic or rubber-elastic elastomer. Device V according to one of Claims 1 to 9 , characterized in that the at least one static sensor layer (1.5) by at least one device (1.4) for electrical induction contactlessly supplied with electrical voltage. Device V according to one of Claims 1 to 10 , characterized in that the at least one sensor layer (1.5) can be generated by voltage change electrical signal by radio and / or electrical contacts or the at least one sensor layer (1.5) generated by voltage change optical signal through optical conductors to the at least one device ( 1.2) is transferable. Device V according to one of Claims 1 to 11 in that the at least one device (1.2) has at least one microcontroller for evaluating the at least one electrical and / or optical signal which can be transmitted by the at least one device (1.3) with respect to the X / Y coordinates of the marking locations and / or defects (3.1) of the planar Goods (3) is. Device V after Claim 12 , characterized in that the X / Y coordinates of the marking points and / or defects (3.1) of the sheet-like and linear goods (3) from the at least one microcontroller (1.2) by radio to at least one data processing system for the purpose of visualization, control and archiving are transferable. Method for the full-area detection and localization of marking locations and / or defects (3.1) on sheet-like and linear goods (3), comprising the following method steps: (A) providing at least one device V according to one of the Claims 1 to 13 comprising - at least one transparent and / or opaque rotatable detector roll (1) with a drive shaft (1.8) or at least one transparent and / or opaque fixed detector bar (1) containing - at least one transparent or opaque static counter-bearing layer (1.1) extending over the entire circumference and the entire or substantially entire transverse length of the at least one detector roller (1) or over the entire or substantially entire transverse length of the at least one detector beam (1), as the lowermost layer, - at least one first transparent or opaque adhesive layer (1.7.1), which extends over the entire circumference and the entire or substantially entire transverse length or over the entire or substantially entire transverse length of the counter bearing layer (1.1), - at least one static sensor layer (1.5) over the entire Scope and the entire or substantially entire transverse length or over the entire or Wesentlic extends at least one second transparent or opaque adhesive layer (1.7.2), which extends over the entire circumference and the entire or substantially entire transverse length or over the entire or substantially entire transverse length the static sensor layer (1.5) extends, - at least one transparent or opaque elastic-dynamic transfer layer (1.6) extending over the entire circumference and the entire or substantially entire transverse length or over the entire or substantially entire transverse length of the second adhesive layer (1.7 .2), - at least one device (1.4) supplying the at least one sensor layer (1.5) with electrical voltage, - at least one device (1.3) containing the at least one electrical and / or optical signal generated by the sensor layer (1.5) to at least one device (1.2) transmits and - the at least one device (1.2) that of the at least one Vorricht (1.3) transmits at least one electrical and / or optical signal with respect to the X / Y coordinates of the marking points and / or defects (3.1) of the sheet-like goods (3), at least one opaque or transparent, fixed or rotating counterpart (2) extending over the entire transverse length of the detector roller (1) or the detector beam (1), and - a static feed gap (7) (7.1.1) or variable Delivery (7.1.2), between the detector roller (1) and the counterpart (2), (B) movement of at least one sheet-like or linear material (3) with at least one defect (3.1) through the gap (7), (C ) Deformation of the at least one transfer layer (1.6) by the at least one marking location and / or the at least one defect (3.1), (D) changing the stress in the at least one sensor layer (1.5) by the at least one defect (3.1) and generating at least an electrical and / or optical signal, (E) transmission of the at least one electrical and / or optical signal by a device (1.3) to a device (1.2) and (F) evaluation of the at least one elektri and / or optical signal with respect to the X / Y coordinates of the at least one marking point and / or the at least one defect (3.1) in the device (1.2). Method according to Claim 14 , characterized in that the evaluation in method step (F) according to equation (i): $$K=\mathbf{D}\pi /a\cdot n$$

where D is the diameter of the detector roller (1), K is the resolution in the direction of travel or transport direction (5), a is the number of increments per revolution and n is the number of revolutions / minute. Method according to Claim 14 or 15 , characterized in that (G) that the X / Y coordinates of the at least one marking point and / or the at least one defect (3.1) are transmitted by radio to at least one data processing system PC for the purpose of visualization, control and archiving. Use of the device V according to one of Claims 1 to 13 and the method according to one of Claims 14 to 16 for the quality control, identification, calibration and / or adjustment of sheet and linear goods (3), rejection of rejects, removal of defects (3.1) and control of devices and processes.

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