EP4224151A1 - Procédé de traitement de charges isolées sur une bande de matériau - Google Patents

Procédé de traitement de charges isolées sur une bande de matériau Download PDF

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Publication number
EP4224151A1
EP4224151A1 EP23151168.4A EP23151168A EP4224151A1 EP 4224151 A1 EP4224151 A1 EP 4224151A1 EP 23151168 A EP23151168 A EP 23151168A EP 4224151 A1 EP4224151 A1 EP 4224151A1
Authority
EP
European Patent Office
Prior art keywords
individual
material web
processing
length
processing station
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.)
Pending
Application number
EP23151168.4A
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German (de)
English (en)
Inventor
Ronny Walther
Franz Höcherl
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.)
Bundesdruckerei GmbH
Original Assignee
Bundesdruckerei GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bundesdruckerei GmbH filed Critical Bundesdruckerei GmbH
Publication of EP4224151A1 publication Critical patent/EP4224151A1/fr
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/18—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web
    • B65H23/188—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web
    • B65H23/1882—Registering, tensioning, smoothing or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in connection with running-web and controlling longitudinal register of web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/02—Conveying or guiding webs through presses or machines
    • B41F13/025—Registering devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0081—Devices for scanning register marks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/02—Arrangements of indicating devices, e.g. counters
    • B41F33/025—Counters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D13/00—Loose leaves modified for binding; Inserts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/23—Identity cards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/24—Passports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/45—Associating two or more layers
    • B42D25/455—Associating two or more layers using heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/45—Associating two or more layers
    • B42D25/46—Associating two or more layers using pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/046—Sensing longitudinal register of web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2213/00—Arrangements for actuating or driving printing presses; Auxiliary devices or processes
    • B41P2213/90—Register control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/11—Length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50—Occurence
    • B65H2511/51—Presence
    • B65H2511/512—Marks, e.g. invisible to the human eye; Patterns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2513/00—Dynamic entities; Timing aspects
    • B65H2513/10—Speed
    • B65H2513/11—Speed angular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
    • B65H2557/20—Calculating means; Controlling methods
    • B65H2557/264—Calculating means; Controlling methods with key characteristics based on closed loop control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
    • B65H2557/60—Details of processes or procedures
    • B65H2557/62—Details of processes or procedures for web tracking, i.e. retrieving a certain position of a web
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/175—Plastic
    • B65H2701/1752—Polymer film
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/1916—Envelopes and articles of mail

Definitions

  • the invention relates to a method for processing individual blanks on a material web in a processing position in at least one processing station.
  • the invention is based on the object of proposing a method for processing individual blanks on a material web in a processing position of a processing station, as a result of which increased precision and a reduction in the reject rate are made possible.
  • This object is achieved by a method for processing individual blanks on a material web in a processing position of a processing station, in which the material web has a plurality of individual blanks lined up one behind the other in the direction of web extension, each with at least one piece of information, with each individual blank being assigned a position mark or between two respective individual blanks assigned position marks, one or more individual copies without position marks are provided, in which a distance between two position marks on the material web, which is used as a basis for the production of the position marks on the material web or is recorded in a reference measurement, is stored as a target value in a data processing device, at in which a movement of the material web in the direction of transport is controlled with a drive motor by a controller which communicates with the data processing device.
  • a measuring device For detecting a length between two position marks a measuring device is used, which comprises at least one sensor for detecting the position markers and at least one distance measuring device, which communicate with the data processing device, with the first position marker being recorded by a sensor assigned to the material web and a starting value being set by the distance measuring device when the subsequent second one is recorded position mark with the sensor or another sensor, a signal is output to the displacement measuring device and an end value is set and the actual length of the material web between the first and the second position mark is determined from the difference between the end value and the start value in the data processing device and in which the length of the material web recorded by the measuring device is compared with the target value stored in the data processing device and a change in length is then determined if there is a discrepancy between the recorded length and the target value, and for the processing of the at least one piece of information on the single blank or the single blank in the processing station, length compensation of a stored in the data processing device reference value of the at least one piece of information on the single blank or the single blank.
  • This method enables length changes in the material web to be detected during the processing of individual blanks on the material web, so that length compensation can result in more precise processing and/or precise positioning of the individual blank or the at least one piece of information on the individual blank in the processing station .
  • an increase in the quality, in particular a personalization quality of webs of material, for the production of security documents and a reduction in the reject rate can be achieved.
  • the stored target value for the length of the material web between two position marks can be a value or dimension, for example in ⁇ m, which is used as a basis for the production of the two position marks on the material web. Furthermore, can it is a value that is recorded after the production of the position marks on the web of material by a measurement, with this measurement preferably being based on a predetermined web tension and a predetermined ambient temperature as the basis for carrying out the measurement.
  • the data processing device also includes a controller or is connected to a controller in order to control the movement of the material web and the measuring device and to query, exchange and/or evaluate data and information. This is done in order to carry out at least one length measurement of the material web between two position marks.
  • the start value and the end value can be a signal which is output by the at least one sensor and forwarded to the distance measuring device. Between the start value and the end value, a travel distance of the material web is recorded by the path measuring device and this data is evaluated or forwarded to the data processing device in order to determine an actual value for the recorded length of the material web between the two position marks.
  • Reference values are stored in a database of the data processing device for the individual blank and/or the at least one piece of information on the individual blank.
  • the reference value of the at least one piece of information on the single blank can be personalized information, for example. This can be an image of the document owner, which is stored as a source file in the database.
  • the reference value of the one-up can be, for example, the predetermined dimension of the format for producing the one-up on the material web that is stored in a file.
  • the stored target values can be corrected for the at least one piece of information on the individual blank as well as for the individual blank itself, depending on the change in length of the material web, so that production-dependent changes that affect the material web are taken into account and compensated for. If, for example, a printed image is to be applied to the at least one piece of information in the individual copy of the material web, a setpoint value for the printed image is stored in the processing station.
  • the target value of the at least one piece of information on the single blank or the single blank corresponds to the actual value.
  • the actual value of the at least one piece of information or the at least one individual copy is greater than the stored target value. Due to the length compensation based on the detected change in length, the stored target value can be corrected by the change in length, so that a printed image can then be produced precisely on the at least one piece of information or the individual copy.
  • the positioning of the individual blank in the processing position of the processing station is carried out by querying the position mark using a query device in the processing station and then a exact positioning of the individual panel in the processing station is made possible.
  • the target value between two position marks for the subsequent processing is corrected by the length compensation.
  • an exact positioning of the respective individual blank in the processing position is made possible, since a position mark is assigned to each individual blank.
  • the quality of the processing can also be increased, since the at least one piece of information on the single blank or the single blank has an actual value that deviates from a target value. This deviation is corrected by the length compensation.
  • the position of the individual blanks between two position marks is determined from the detected change in length between the two position marks and with the stored setpoint of two consecutive position marks is compared and, in the event of a change in length, is divided according to the number of individual blanks between the two position marks in order to then control the movement in the transport direction for each individual blank in succession.
  • an exact positioning of the individual blanks can take place in the processing position of the processing station despite a detected change in length.
  • the recorded change in length can simultaneously result in a length compensation with respect to the stored target values for the subsequent processing, so that these are adapted to the recorded actual values of the at least one piece of information or the single use can be adjusted.
  • the recorded change in length between two position marks on the web material can be either an expansion or a shortening. In most cases a stretch will be detected.
  • the changes in the length of the web of material can occur in particular as a result of temperature fluctuations, the influence of tension and/or fluctuations in tension on the web of material.
  • the measurement for detecting the length of the material web is carried out with the measuring device and, if there is a deviation between the detected length and the desired value, a change in length is detected and then an exact positioning can be controlled by the movement of the individual blanks in the processing position of the processing station.
  • precise positioning and/or processing can take place in the respective processing station, independently of different working conditions and temperatures.
  • Each processing station is preferably assigned a drive motor for controlling the movement of the material web, with the drive motor preferably being connected downstream of the processing station, so that the material web is moved through the processing station under tension.
  • a slip-free drive is preferably used for the movement of the material web.
  • the method preferably provides for the at least one sensor of the measuring device to be positioned in front of each processing station at a distance such that the second position mark is detected before the first position mark has reached the processing position in the processing machine. This makes it possible for the at least one piece of information on the individual blank or the individual blank to be moved precisely into the processing position by a subsequent displacement movement as a function of the detected change in length, taking into account length compensation.
  • a rotary encoder or an incremental encoder is used, which is preferably coupled to the drive motor, in particular the drive shaft of the drive motor.
  • the number of revolutions of the drive motor can also be queried to determine the length, taking into account the diameter of the drive roller driven by the drive motor for moving the material web.
  • a buffer is advantageously provided between two consecutive processing stations through which the same material web passes. As a result, a change in length of the material web can be recorded independently for each processing station.
  • This method for processing the material web can be provided, for example, in a processing station in which the at least one piece of information is printed on the single blank or a single blank and a correction of a reference value for the printed image to be applied is carried out depending on the change in length before the printing is controlled.
  • an inspection or a check of the at least one piece of information on the single blank or the single blank can be carried out in the processing station, with the stored reference values of the information to be checked or of the single blank being corrected by the change in length, so that the corrected and stored reference value the actual values of the at least one piece of information on the individual copy or the individual copy due to the change in length are compared.
  • a marking can be applied to the at least one piece of information of the single blank or the single blank, with the marking preferably being applied if the previous inspection has determined that the processing steps applied to the single blank are outside a limit range of a predetermined reference value lay.
  • a marking marks the individual blank as scrap, and this marking is also applied exactly to the individual blank, taking into account the length compensation.
  • the web of material on which at least one item of information is applied to a single blank and multiple single blanks are provided in succession is preferably used as a continuous web of material on a role provided. After passing through at least one processing station, the endless web of material can be stored on a roll again or fed to a further processing station.
  • FIG 1 a schematic view of a material web 14 is shown.
  • This web of material 14 has a plurality of individual blanks 16 following one another in a row.
  • a web width of the material web 14 can also be selected in which two or more individual blanks 16 are positioned next to one another and a large number of individual blanks 16 are positioned one behind the other.
  • At least one piece of information 18 is provided in and/or on each individual blank 16 .
  • This at least one piece of information 18 can be imprinted elements, such as a line or a frame or a symbol or the like.
  • the at least one piece of information 18 can represent a security element.
  • This can be a security element introduced into the material web 14 and/or applied to the material web 14 .
  • These security elements can be visible or invisible to the human eye.
  • this material web 14 includes one or more security elements that are printed, for example, in subsequent processing steps, in particular by inkjet digital printing.
  • the respective individual blank 16 can be personalized, which is combined with further layers in a later work step and processed into a value or security document. Additional process steps for processing the individual blank 16 can also be provided.
  • a position mark 17, 19 is assigned to each individual copy 16.
  • a first or leading position mark is denoted by reference number 17 and a second or subsequent position mark by reference number 19 .
  • These position markers 17, 19 are detected by a sensor during a movement of the material web 14 in a transport direction and are used for the exact positioning of the at least one piece of information 18 of the single blank 16 or the single blank 16 in a processing position.
  • the position mark 17, 19 can be designed, for example, as a so-called fiducial mark.
  • a register mark is a marking in digital print data, on print templates, on print forms or printed sheets, for example in the form of a crosshair.
  • Registration marks are assigned to the print marks. They are used to mount printing forms precisely and correctly and to print precisely on the printed sheets or webs of material. In a multi-color printing, these serve to Alignment and exact positioning of the individual color separations.
  • fiducial marks are preferably positioned outside of a trimming or a single copy or assigned outside of a plurality of single copies.
  • the position marks 17, 19 can also be designed differently instead of the fiducial marks and can be provided on or on the material web 14.
  • the web of material 14 consists of a layer of plastic, in particular polycarbonate (PC), especially bisphenol A polycarbonate, carboxy-modified PC, polyethylene terephthalate (PET), its derivatives such as glycol-modified PET (PETG), carboxy-modified PET, polyethylene naphthalate (PEN), polyvinyl chloride (PVC), polyvinyl butyral (PVB), polymethyl methacrylate (PMMA), polyimide (PI), polyvinyl alcohol (PVA), polystyrene (PS), polyvinyl phenol (PVP), polypropylene (PP), polyethylene (PE), thermoplastic elastomers (TPE), in particular thermoplastic polyurethane (TPU), acrylonitrile butadiene styrene copolymer (ABS) and/or derivatives thereof, or of paper and/or cardboard or of a mixture of the aforementioned materials.
  • PC polycarbonate
  • PET polyethylene terephthalate
  • PET polyethylene terephthal
  • the web of material 14 can also consist of several layers connected to one another. These multiple layers may be prelaminated or stitched into a web 14 of material.
  • This web of material 14 can form a layer for a security document, which is made up of several layers and connected to one another by gluing, welding, in particular by lamination.
  • a security document can be, for example, a data page for a book-like value or security document and a data page for a passport or an ID document, in particular in an ID 1 or ID 3 format. It can also be a check card, Visa card, driver's license, access control card, visa, gift or shopping card or other proof of entitlement.
  • the material web 14 can have a layer thickness of 25 ⁇ m to 500 ⁇ m.
  • figure 2 is an alternative embodiment of the material web 14 to figure 1 shown. What differs in this embodiment of the material web 14 is that a position mark 17 is not assigned to each individual blank 16 . In this embodiment, for example, between two consecutive position marks 17, 19, which are each associated with a single blank 16, three single blanks 16 are provided in between. It goes without saying that instead of three individual copies 16, only one or any number of individual copies 16 can be provided in between.
  • FIG 3 a schematic representation of a measuring device 21 for detecting a length, in particular an actual length, of the material web 14 is shown.
  • This measuring device 21 comprises at least one sensor 22 which detects the position marks 17, 19 on the material web 14.
  • the measuring device 21 also includes a path measuring device 24, by which a length of the material web 14 is detected during a movement in the transport direction 25.
  • This path measuring device 24 can be a rotary encoder or an incremental encoder or the like.
  • This displacement measuring device 24 is coupled to a drive motor 26 which conveys the material web 14 in the transport direction 25 via a drive roller 27 or a drive roller.
  • the drive roller 27 or drive roller is designed as a coated roller which preferably has increased friction for improved adhesion to the material web 14 .
  • a pressure roller can be provided associated with this drive roller 27 and/or opposite it, with the material web 14 being interposed. As a result, a slip-free movement of the material web 14 in the transport direction 25 can be controlled.
  • the detection of an actual length of the material web 14 is essential for high product quality.
  • the material web 14 can be subject to a change in length due to temperature fluctuations or the influence of web tension. This change in length can cause elongation or be an abbreviation. Most of the time there will be a stretch. This change in length also affects each individual copy 16, so that the individual copy 16 or the at least one piece of information 18 on the individual copy 16 has an actual value due to the change in length that deviates from a target value.
  • a length compensation for the stored reference value of the at least one information 18 or the individual blank 16 can be carried out before the processing of the individual blank 16 or the at least one piece of information 18 . This length compensation adapts the predefined and stored reference value of the individual copy 16 or the at least one piece of information 18 to the actual situation.
  • the actual length of the material web 14 is determined as follows: The drive motor 26 moves the material web 14 in the transport direction 25. A first position mark 17 is detected by the sensor 22. This position is in figure 3 shown. The sensor 22 emits a signal to the path measuring device 24 in order to start the measurement for detecting the length of the material web 14 . This signal starts the measurement in the path measuring device 24 with a starting value. After a movement of the material web 14, the subsequent or second position mark 19 is detected by the sensor 22. this is in figure 4 shown. The sensor 22 again emits a signal, as a result of which an end value is set in the displacement measuring device 24 .
  • the length measurement of the material web 14 is ended, and the path measuring device 24 forwards the difference between the final value and the starting value to the data processing device 30 . From this, the actual length A of the material web 14, which figure 4 is shown, determined and preferably stored for the subsequent length compensation.
  • Target value between two consecutive position marks 17, 19 for the respective material web 14 is stored. This target value is compared with the detected length A, which corresponds to the determined actual value. If there is a deviation between the desired value and the actual value, there is a change in the length of the material web 14 . A length compensation is then carried out with regard to the further stored reference values for the at least one piece of information 18 or the individual copy 16 for the further processing of the material web 14 .
  • the measuring device 21 shown is preferably integrated into a processing station 35 or part of the processing station 35.
  • the at least one sensor 22 is provided on the input side of the processing station 35.
  • the drive motor 26 and preferably the displacement measuring device 24 are provided on the output side of the processing station 35 .
  • a processing device 37 is arranged in between and is aligned at a processing position 38 .
  • the individual blanks 16 of the material web 14 are guided past the processing device 37 . In order to process the individual blanks 16 or the at least one piece of information 18 on the individual blank 16, these must each be precisely aligned in the processing position 38.
  • the sensor 22 is positioned at a distance in front of the processing station 35 in relation to the processing position 38 , so that a distance between two position marks 17 , 19 is detected before the first position mark 17 reaches the processing position 38 .
  • the movement of the material web 14 can then be controlled, so that the individual blank 16 with the first position mark 17 is moved exactly into the processing position 38 .
  • this traversing movement can take place in such a way that an interrogation device 36 is provided in the processing position 38 , which detects the first position mark 17 in order to align the associated individual blank 16 in the processing position 38 .
  • the known distance between the sensor 22 of the measuring device 21 and the processing device 37 is compared with the detected length between the first and subsequent position mark 17, 19 and the remaining travel path is controlled.
  • the recorded change in length is taken into account and compensated for in the processing device 37 before the processing step is carried out.
  • the print image stored in the data processing device 30 can be corrected with its reference values by the detected change in length. If, for example, the at least one piece of information 18 is stretched by ⁇ X, the stored reference value for the printed image is corrected by the stretching ⁇ X and then applied. This allows increased processing quality to be achieved.
  • the processing device 37 is used for optical inspection, the actual value of the at least one piece of information 18 on the individual blank 16 or the individual blank 16 is detected, for example, by an optical device, in particular a camera.
  • the correspondingly stored reference value of the at least one piece of information 18 or of the individual copy 16 is corrected taking into account the determined change in length of the material web 14 in order to then compare the recorded actual value(s) with the corrected reference value(s) for an evaluation as a good or bad part.
  • Processing device 37 can also include other processes, such as marking the at least one piece of information 18 on single copy 16. If, for example, the inspection of the at least one piece of information 18 or single copy 16 determines that the printed image on single copy 16 is outside of a Tolerance range is or is incorrect, this error information can be forwarded to the processing device 37 for marking via the data processing device 30, so that this faulty print image is overprinted by a marking, so that this single copy 16 is identified as a bad part or scrap.
  • processing facility 14 web of material 38 processing position 15 39 16 single use 40 17 position mark 41 18 information 42 19 position mark 43 20 44 21 measuring device 45 22 sensor 46 23 47 24 distance measuring device 48 25 transport direction 49 26 drive motor 50 27 drive roller 51. 28 52 29 53 30 data processing facility 54 31 55 32 56 33 57

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
EP23151168.4A 2022-01-20 2023-01-11 Procédé de traitement de charges isolées sur une bande de matériau Pending EP4224151A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022101296.4A DE102022101296B3 (de) 2022-01-20 2022-01-20 Verfahren zum Bearbeiten von Einzelnutzen auf einer Materialbahn

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EP4224151A1 true EP4224151A1 (fr) 2023-08-09

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DE (1) DE102022101296B3 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4781317A (en) * 1986-08-29 1988-11-01 Adolph Coors Company Phasing control system for web having variable repeat length portions
US5777879A (en) * 1995-09-05 1998-07-07 Minnesota Mining And Manufacturing Company Process-to-mark control system
US10266285B2 (en) * 2014-12-22 2019-04-23 Tscheulin-Rothal Gmbh Method and device for producing partially embossed blanks

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0960024B2 (fr) 1997-12-11 2006-06-28 Teich Aktiengesellschaft Procede de production d'elements de couvercle partiellement estampes pour recipients et dispositif d'application de la methode
JP2005138994A (ja) 2003-11-10 2005-06-02 Lintec Corp 送り装置及び送り方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4781317A (en) * 1986-08-29 1988-11-01 Adolph Coors Company Phasing control system for web having variable repeat length portions
US5777879A (en) * 1995-09-05 1998-07-07 Minnesota Mining And Manufacturing Company Process-to-mark control system
US10266285B2 (en) * 2014-12-22 2019-04-23 Tscheulin-Rothal Gmbh Method and device for producing partially embossed blanks

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