Praktische Beispiele aus dem industriellen Einsatz
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Paper Industry / Printing Industry (Papierindustrie / Druckindustrie)
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APP N° 730
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Fiber density control of fiber sheets The density of fiber sheets should be controlled. |
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APP N° 714
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Single paper sheet counting Single sheets imbricated and transported on a conveyor belt should be counted. |
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APP N° 712
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Counting of paper bags Paper bags transported on a conveyor belt should be counted. It should be noted that there is a double edge on each bag. Furthermore, the transport height is changing, dependent of the degree of overlap of the respective bag. |
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APP N° 670
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Glue line detection on cigarette filter paper A glue line should be detected on cigarette filter paper. It should be noted, that the solvent used for the glue is water based. |
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APP N° 666
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Frontside / backside detection of black laminated paper sheets The correct direction of black laminated paper sheets should be detected. It should be noted, that the frontside is slightly marked with a rectangular pattern. |
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APP N° 663
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Fluorescent print presence control The presence of a fluorescent print on plastic film should be controlled. |
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APP N° 634
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Glue line control on printed paper The presence, amount and gaps of a glue line on printed paper should be detected. |
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APP N° 629
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Front side – backside differentiation of paper web The backside of yellow and white paper web should be differentiated from the respective front side. |
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APP N° 607
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Continuous edge pursuit on embossed paper The edge on embossed paper should be traced. |
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APP N° 597
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Black line detection on white background at a big distance A black line on a white background should be detected at a big distance. |
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APP N° 583
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Moisture control of paper The moisture of paper should be controlled. |
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APP N° 577
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Adhesive layer presence detection on paper web The presence of an adhesive layer on paper web should be controlled. |
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APP N° 576
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Watermark detection on safety paper Water reference marks should be detected on safety paper. |
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APP N° 560
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Detection of an UVC absorbing coating on transparent plastic film UVC absorbing coating should be detected on transparent plastic films. |
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APP N° 529
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Inline color measurement of paper web The color of a paper web should be measured inline. It has to be taken into account, that the ambient temperature as well as the humidity is very high at the place where the paper web should be color measured. |
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APP N° 493
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Fluorescence detection on metal foils The presence of fluorescence coating on a metal foil should be controlled. |
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APP N° 462
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Folded paper cone counting Folded paper cones transported on a conveyor belt should be counted. |
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APP N° 431
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Quality control of cartridges The quality of cartridges should be controlled. It has to be taken into account, that the reflectivity of the surface of the cartridges will be decreased with the increase of the usage of the cartridges. |
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APP N° 417
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Fluorescent label detection Fluorescent labels should be detected on semitransparent carriers. |
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APP N° 329
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Corrugated cardboard color control The color of corrugated cardboards should be controlled. Especially black areas should be detected and the distance from the cardboard to the sensor should be larger than 120mm. |
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APP N° 328
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Double layered paper sheet control Double-layered paper sheets should be differentiated from single sheets. |
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APP N° 321
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Glue line detection on packaging paper A glue line should be detected on packaging paper. At this, the glue is fluorescent if UV light is used. |
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APP N° 300
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Color differentiation of beige papers Beige colored papers should be color differentiated. At this, the detecting area should be around 25mm in diameter. |
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APP N° 241
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Color mark detection on plastic film labels A black color mark on a plastic film label should be recognized. At this, the color mark must be differentiated from transparent background as well as from the printed part. |
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APP N° 239
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Detection of a color mark on a transparent plastic film A color mark on a transparent plastic film should be detected. The sensor is used in the Ɛx – range, thus, an optical fiber unit is necessary. |
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APP N° 237
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Color mark position control The position of printed color marks on aluminum foils and plastic films should be controlled. At this, the sensor system should deliver an analogue signal which is proportional to the position of the color mark. At this, the color of the background as well as of the color mark can change from batch to batch, which means, that a flexible “easy to handle” system is required. Beside the digital output (a signal change should happen if the light spot is covered by 50% of the color mark) there is an analog output desired, which informs about the actual position of the color mark: 5V means, that the light spot covers to 50% the color mark and 0V and 10V shows, that the light spot falls either only onto the background or onto the color mark. |
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APP N° 226
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Color control of a holographic transparent film During the production of a holographic transparent film the color should be inline controlled. At this the color can only be detected under an angle of 30° to the vertical axis if the light falls perpendicular onto the holographic film. Furthermore the frontend should be directed perpendicular to the transport direction of the holographic film. |
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APP N° 219
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Line detection on printed semi transparent plastic film A golden colored line should be detected on a semi transparent plastic film. |
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APP N° 202
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Detection of a printed reference mark on an aluminum foil A lasered reference mark on an aluminum foil should be detected. At this, the maximum rate of feed of the aluminum foil is approximately 60m/min. |
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APP N° 199
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Detection of a lasered reference mark on an aluminum foil and differentiation from a lasered stripe A lasered reference mark on a shiny aluminum foil should be detected. A proper detection of the reference mark should be guaranteed, which means, that the lasered stripe must not be detected as a reference mark. |
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APP N° 166
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Color and contrast control during the printing process of safety paper During the printing of safety paper the color as well as the contrast should be controlled on two fields on the reference color stripe. |
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APP N° 148
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Detection of color marks on spray cans Color marks should be detected on different spray cans. Attention should be paid to the background color as well as to the glue line. |
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APP N° 130
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Detection of a fluorescent stripe on leaflets On an advertising material a fluorescent stripe should be detected. Print shops get orders for promotion material from chain of stores. The stores of a chain have exactly the same leaflet except the address of the respective store, thus it must be paid attention during the packaging process in the print shop. At this a fluorescent stripe will be painted onto the first ten leaflets with the other address. At the beginning of the printing process it is possible to teach the sensor onto the fluorescent stripe, thus the fluorescent as well as optical absorption effects from the paper of the advertising material can be compensated. |
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APP N° 94
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Inspection of perforated cigarette paper During the laser perforation of cigarette paper it happens sometimes that around the holes the paper is partially burned. Observed from a certain distance, the cigarette paper looks like a white paper with more or less gray stripes. The perforated stripes should be inline controlled, whether there is a color as well as intensity shift into the gray range. Furthermore, a distinction between burned stripes, slightly burned stripes, proper stripes and no stripes should be possible. |
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APP N° 89
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Color mark detection on a paper banderole A white color mark must be detected on a different colored stripe. Depended of the bank note, the stripe can have a color of e.g. yellow, brown, red, blue, green, violet and grey. The product runs with a maximum speed of approximately 10m/s and the size of the color mark is about 6mm x 4mm. The sensor should deliver precise information about the position of the white color mark. |
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APP N° 75
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Kontroll av läge i sidled och längsled med färgmarkeringar Inom tryckeriindustrin vid offsettryck kontrolleras läge i sida och längsled genom att detektera trekantiga färgmarkeringar. För varje färg används en färgmarkering och dessa positioneras mot en svart färgmarkering. Color mark detection for side and longitudinal register control in the printing industry In the web offset printing trapezoid like color marks will be used for the side register as well as the longitudinal register control. For each color a color mark is used, at which all color marks will be synchronized to the black color mark. |
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APP N° 71
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Optisk positionering av transparent plastfolie Transparent plastfolie ska positioneras med optisk givare inom ett område på 50 mm. Optical transparent plastic foil position control The position of an optical transparent plastic film should be controlled in a range of approximately 50mm. |
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APP N° 69
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Kantstyrning av papper Inom ett område av 50 mm ska kantstyrning av papper göras. Systemet ska ge en analog signal ut vilken är proportionell mot papperskantens position. Paper edge position control The position of the edge of a paper line must be controlled in a range of 50mm. The system should deliver an analogue signal (0V … +10V) which is proportional to the position of the edge of the paper. |
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APP N° 68
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Kvalitetskontroll vid tryckning av tidningar Kvalitetsbrister på trycket vill tillverkning av tidningar markeras med fluorescerande färg. Dessa tidningar ska automatiskt bli utsorterade genom att belysa dem med UV-ljus. Fluorescence stripe detection on newspapers Newspapers with quality defects will be marked with a fluorescence stripe. These newspapers must be automatically detected and rejected from the normal product stream. |
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APP N° 65
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Positionering av vattenstämpel på säkerhetspapper Kontinuerlig positionering av markeringar i form av vattenstämplar ska göras i produktionen av säkerhetspapper. Detta för att synkronisera med efterföljande processteg i tillverkningen. Detection of a reference water mark on safety paper The position of a reference water mark must be inline detected. During the printing process it is necessary to synchronize the consecutive registers to the reference water mark. |
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APP N° 63
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Supersnabb detektion av holografiska markeringar inom tryckeriindustrin De flesta holografiska markeringar har egenskapen att ge direktreflektion tillbaka när ljus infaller med en vinkel av 45 grader. Detta gäller både för transparent så som metalliserad folie. Super fast detection of holographic reference marks in the printing industry One of the properties of holographic marks is the direct back reflection of collimated, parallel light under a certain angle. For most of the holographic marks this angle is equal to 45° and the collimated beam is directed perpendicular to the transport direction of the printed foil. This behavior of direct back reflection can be observed on transparent as well as on metalized holographic foils. |
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APP N° 60
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Färgdetektion av fluorescerande vätskor och färgmarkeringar De givare som för närvarande har funnits på marknaden för fluorescerande detektion har bara känt av intensiteten av det fluorescerande objektet men inte detekterat färgen. De har även haft svårt att detektera svaga objekt eller på avstånd mer än 80 mm. Dessutom känsliga för omgivande ljus. För dessa applikationer ska en färggivare för fluorescerande färg användas för säker detektion. Color differentiation of fluorescent liquids and marks Available fluorescent sensors so far detect only the intensity of a fluorescent object but not the color. Furthermore these sensors have a problem to detect very weak fluorescent objects or fluorescent objects at a distance more than 80mm and additionally they are sensitive against ambient light. For the purpose of fluorescent color mark detection a color sensor for fluorescent colors should be used. |
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APP N° 27
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Detektion av färgmarkering på plastfolie Under tryckningen av plastfolie för livsmedelsindustrin ska färgmarkeringars position detekteras korrekt. Detection of color marks (register marks) During the printing process of plastic foils for the food industry the color mark must be properly detected on each printing units. |
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APP N° 24
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Färg- och intensitetskontroll av fluorescerande färgmarkeringar under produktion Fluorescerande tryckta färgmarkeringar ska kontrolleras för färg och intensitet. Tryck med olika styrka kontrolleras. Color and intensity control of fluorescent color marks during the production The intensity of a printed fluorescent color should be controlled. At this, fluorescent color marks with different densities of color are present. Thus, the color as well as the intensity of the fluorescent color mark can be controlled. |
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APP N° 15
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Kontroll av pärlglanspigment på säkerhetspapper Under tillverkningen av säkerhetspapper ska korrekt läge och tjocklek på trycket av pärlglanspigmentet kontrolleras. Detection of pearlescent color strips on security papers The position as well as the quality of pearlescent multi color strips on security paper should be controlled. |
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