EP3392172A1 - Procédé de surveillance destiné à surveiller un processus de déroulement, dispositif de déroulement ainsi que système de déroulement - Google Patents

Procédé de surveillance destiné à surveiller un processus de déroulement, dispositif de déroulement ainsi que système de déroulement Download PDF

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Publication number
EP3392172A1
EP3392172A1 EP18163411.4A EP18163411A EP3392172A1 EP 3392172 A1 EP3392172 A1 EP 3392172A1 EP 18163411 A EP18163411 A EP 18163411A EP 3392172 A1 EP3392172 A1 EP 3392172A1
Authority
EP
European Patent Office
Prior art keywords
irregularity
unwinding
web material
parameter
monitoring method
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.)
Granted
Application number
EP18163411.4A
Other languages
German (de)
English (en)
Other versions
EP3392172B1 (fr
Inventor
Uwe Köhn
Oliver Huil
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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
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Publication of EP3392172A1 publication Critical patent/EP3392172A1/fr
Application granted granted Critical
Publication of EP3392172B1 publication Critical patent/EP3392172B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/14—Mechanisms in which power is applied to web roll, e.g. to effect continuous advancement of web
    • B65H18/145—Reel-to-reel type web winding and unwinding mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/04—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring thickness, width, diameter or other transverse dimensions of the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H26/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms
    • B65H26/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions, for web-advancing mechanisms responsive to presence of irregularities in running webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/415—Unwinding
    • B65H2301/41501—Special features of unwinding process
    • 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
    • B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
    • B65H2553/42—Cameras
    • 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
    • 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
    • B65H2801/00—Application field
    • B65H2801/84—Paper-making machines

Definitions

  • the present invention relates to a monitoring method for monitoring an unwinding process, an unwinding device for carrying out a unwinding process of a web material and an unwinding system.
  • the irregularity may directly or indirectly affect the web material and / or the unwinding process.
  • the web material is wound up as a tube, which is opened during unwinding or after unwinding, so that a three-dimensional shape is created from a hose that has been previously folded together.
  • the web material for example, does not withstand the processing of the web material to bag this processing and tears open a corresponding bag. Such tearing can also take place during unwinding or shortly after unwinding, so that this may represent a possible irregularity.
  • the web material may have a printed image. For example, for the production of plastic bags, the web material may first be printed before it is wound up.
  • an altered slip during unwinding of the web material can be understood to mean that a drive means, which ensures propulsion of the web material, at least partially slips.
  • the speed of the drive and the speed of the web material differ accordingly.
  • forces and / or moments can be measured at different points during the unwinding process, which can be an indicator of the occurrence of an irregularity.
  • the running parameter may preferably also be referred to as a running meter.
  • the running parameter in particular the actual developed length of the web material of the winding up to the occurrence of irregularity.
  • the length can be related to the irregularity in different ways, ie correlated.
  • the running parameter may include a length ranging from the starting point of the web material, ie, for example, from the first unwound end of the web material, to the beginning of the irregularity, to the end of the irregularity, or to an average value between the beginning and end of the irregularity.
  • the correlation of the irregularity to the running parameter can thus be understood to mean an assignment of a specific value of the running parameter to a position of the irregularity relative to the winding and / or vice versa.
  • the running parameter for the irregularity is correlated or correlated accordingly.
  • the running parameter may include the length from the beginning of the unwinding of the web material to the beginning of the absence of the printed image and / or until the end of the absence of the printed image.
  • the running parameter may include the length of the unwound material until the irregularity occurs in the form of a particular event, eg, a change in forces and / or moments.
  • the correlation between the irregularity and the running parameter may be understood to relate the irregularity, particularly occurrence of the irregularity, to the running parameter.
  • This can be carried out, for example, by providing a table having at least two columns, the irregularity being written into the first column and the running parameter or a value of the running parameter being traced back to the second column of the table, at which position in the wrap the irregularity has occurred.
  • a field variable of a computer program may be provided instead of the table or provide the table.
  • this makes it clear that the irregularity is assigned to a value of the running parameter, that is to say occurs at a position of the running parameter. An accumulation of irregularity in a certain range of the running parameter can thus be determined.
  • the evaluation can also be carried out automatically, for example, on the basis of predetermined criteria, in particular by means of a computing unit.
  • a corresponding inference to a cause of the irregularity can be carried out automatically in the context of the method, and the conclusion thus to have a reproducible accuracy.
  • the running parameter of the winding the running parameter is related to the same winding, so that the conclusions can be attributable to a specific winding, also based on its manufacture.
  • the running parameter is determined during the unwinding of the web material from the winding.
  • the running parameter can be determined continuously during the unwinding of the web material from the winding.
  • the determination of the running parameter may include a direct measurement of the running parameter.
  • the running parameter can thus be recorded and recorded continuously during unwinding, for example, so that a value corresponding to the irregularity is immediately available when the irregularity is detected.
  • the run parameter can not be determined continuously during the unwinding process by, for. B. the running parameter is measured only when an irregularity is detected.
  • a continuous acquisition of the running parameter can include an analog and / or a digital measurement of the running parameter.
  • a detection means for detecting the running parameter can work incrementally and z. B. after output a signal over a certain length or revolution, which can be used to deduce the run parameter.
  • detecting the run parameter during unwinding it is z. B. not necessary to measure this manually, so that the monitoring process can be further automated and thus costs can be saved while a reproducible, high accuracy can be provided.
  • the running parameter can preferably be determined by detecting a preferred parameter on the web material.
  • a measurement of a number of revolutions of the coil can additionally be carried out.
  • the preference may be given to a part of a drive means which acts on the web material in order to allow it to drive forward.
  • a preferred parameter may include a speed, in particular a rotational speed and / or a tangential speed of a drive roller, with preference.
  • the measurement of the preferred parameter can be set directly in relation to the actually processed length and thus a high-quality indicator for the running parameter.
  • the web material already runs in a flat extension, so that according to changing diameters of the roll on preference no or play only a minor role.
  • the running parameter can be determined by measuring the preferred parameter and by measuring the number of revolutions of the winding.
  • the measurement of the number of revolutions of the reel permits a correction of the preferred parameter, wherein here, preferably, an estimate of the diameter of the reel can be given.
  • the actual measurement of the running parameter can take place on preference, but these can be corrected on the basis of the measurement of the number of revolutions of the reel in order to at least partially eliminate slip on the merit. This results in a high accuracy of the determination of the running parameter, so that in particular a conclusion on the cause of the irregularity can be improved in its accuracy.
  • a database can preferably be understood as an electronic table.
  • a SQL server can be maintained on a storage medium, which provides a corresponding database.
  • the correlation of the irregularity with the running parameter can be determined by relating the irregularity and the running parameter in such a way that they can be assigned to one another when they are entered into the database.
  • the database can be viewed and the correlation between irregularity and run parameters can be tracked. For example, several irregularities can be evaluated together after the expiry of an unwinding process, or several irregularities from several different unwinding processes can be evaluated together.
  • a conclusion can only emerge from the fact that several batches of a batch are examined together for irregularities over the database, so that a pattern emerges only when examining the several bobbins.
  • the irregularity when entering the correlation into the database is brought into a further correlation at a time specification.
  • a first correlation with the run parameter can be determined and a second correlation with time can be generated or determined.
  • the time indication may include a time, in particular a time, of the time of occurrence of the irregularity.
  • the time indication may be provided as a third column in a table of the database.
  • the time indication can draw conclusions about a connection between the occurrence of the irregularity and another event during the unwinding process, such as, for example, a power failure, allow.
  • a connection between the occurrence of the irregularity and another event during the unwinding process such as, for example, a power failure
  • the time and the running parameter there are several relationships between the irregularity, the time and the running parameter, so that further information about the handling of a specific roll during the processing process converge.
  • a lateral position of the irregularity can also be determined in correlation with the running parameter in order to be able to obtain further information for a conclusion on a cause of the irregularity in this respect as well.
  • the database may advantageously be provided on a server and / or an internal storage unit of the unwinding device.
  • an external server can be understood to mean an arithmetic unit which has a storage capacity for the database and is provided outside the unwinding device.
  • the external server z. B. be part of a palletizing system or are located externally at a service company.
  • the storage of the data may be outsourced to z. B. the capacity of a provider of computing power and / or storage to use, so that costs of the unwinding device can be saved.
  • This can, for. B. only have a communication interface, so that the unwinding device can communicate with the database on the external server.
  • the external server can also be connected, for example, to a take-up device or be part of a take-up device, so that data about the windings to be processed flows back directly to the production process of the take-up rolls.
  • the database is provided on an internal storage unit and / or a mobile storage unit.
  • the unwinding device itself comprise a corresponding memory unit
  • the z. B. is built as an internal HDD or SSD hard drive in the unwinding device and thus the data generated are available directly to the unwinding device.
  • a mobile storage unit has the advantage that it can be connected to the unwinding device, for example, via a USB interface, while the data is being transmitted and can then be transported as desired in order to store the data, for example. B. a development department to provide.
  • the warning message for example, an operator of the unwinding device can be informed about the occurrence of the irregularity, so that it can initiate corresponding countermeasures or reaction measures.
  • the warning message z. B. be issued via a warning light, or display a warning message. Additionally or alternatively, it is conceivable that an acoustic signal will be output, such as a warning sound via a loudspeaker.
  • an acoustic signal will be output, such as a warning sound via a loudspeaker.
  • z a particular type of defect in the web material is particularly critical and accordingly requires the warning message, while other types of defects of the web material are merely recorded and correlated with the run parameter accordingly. For example, a changed slip may be uncritical and therefore require no warning messages, but a lack of print image may require that appropriately crafted follow-on products be discarded or the unwinding process interrupted.
  • the visualization can be done for example on a display, wherein z.
  • a chart may be displayed that indicates the occurrence of irregularities over running parameters.
  • an operator of the unwinding device can be shown, for example, an accumulation of the irregularity in a specific running parameter range, so that the latter can already draw conclusions from the existing correlation at the unwinding device.
  • the display may preferably be arranged on the unwinding device. Additionally or alternatively, it can be provided that the visualization of the correlation between the irregularity and the run parameter is performed on a display outside the unwinding device.
  • the unwinding device is in communication with a network, so that the data can be transmitted to a monitoring station and / or directly to a development department in order to send an evaluation directly to an evaluating point.
  • visualization can simplify the monitoring process and increase comfort, in particular for the persons involved, so that ultimately time can be saved in the evaluation.
  • a probabilistic determination can already be carried out automatically from an accumulation of irregularities in the region of a certain running parameter or from the correlation of a single irregularity with the running parameter.
  • the probability can be determined by a computing unit of the unwinding device and therefore a reproducible result can be output.
  • the monitoring method can thereby be further automated, whereby a uniform basis can be created in order to determine the relationship or the probability.
  • the irregularity comprises a process parameter which lies outside of a parameter range.
  • the parameter range can have at least one parameter limit, at which the irregularity is defined above. If the process parameter therefore exceeds or falls below this parameter limit, an irregularity is assumed.
  • the parameter limit can be an absolute or a relative limit.
  • two parameter boundaries are provided which define a closed parameter range down and up.
  • Exemplary parameter limits can be opacity a print image, the transparency of a film material or a tolerable slip on preference.
  • these parameter limits can be designed absolutely, ie predefined or predefined at the beginning of the monitoring process.
  • relative parameter limits may be provided which, for example, define an anomaly such that the process parameter z. B. is wrapped over a certain length dynamically during the unwinding process and a certain percentage is considered above and / or below as an irregularity.
  • a number of products produced from the web material is determined on the basis of the running parameter.
  • the products may be bags made of plastic film.
  • the running parameter and in particular by taking into account any unprocessed irregularities of the web material to perform a calculation of the total length and / or total area of the web material.
  • the number of products produced from the web material can be calculated from a specific winding.
  • the determination based on the running parameter is substantially or completely adjusted by a possibly fluctuating thickness of the web material.
  • an unwinding device for carrying out a unwinding process of a web material is claimed by a reel.
  • the unwinding process can be monitored by a monitoring method according to the invention.
  • the unwinding device has a winding holder on which the reel can be stored during the unwinding process.
  • the unwinding device has a drive means, by means of which a propulsion of the web material can be generated, and a detection unit, by means of which at least one irregularity of the web material and / or the unwinding process can be detected.
  • the detection unit is in communication with a computing unit, wherein a correlation of the irregularity to at least one run parameter of the winding can be determined by the computing unit.
  • the detection unit can be designed for optical and / or acoustic detection of the irregularity.
  • the detection unit may comprise a camera and / or an ultrasound sensor.
  • the detection unit can have means for measuring force and / or torques.
  • the detection unit can be arranged on the drive means, on the winding support and / or on a frame of the unwinding device.
  • the computing unit may be part of a computer or a controller.
  • a control unit of the unwinding device may comprise the arithmetic unit.
  • the drive means may preferably comprise two driven rollers which are in contact with the web material so that the web material undergoes propulsion when the drive means are driven.
  • the drive means may have a particular textured surface through which the preference of the web material is realized by friction.
  • the winding holder may preferably comprise a winding mandrel on which the winding is pushed to carry out the unwinding, so that it is rotatably mounted on the unwinding device.
  • the detection unit and / or at least one measuring means for detecting the running parameter can be arranged on the winding holder.
  • an unwinding device brings about the same advantages as have already been described in detail with reference to an inventive monitoring method.
  • the irregularity can be detected by the detection unit and a correlation can be established by the arithmetic unit, in particular by which a conclusion on an occurrence of the irregularity is improved by the connection with the running parameter.
  • the running parameter can preferably be detected by a measuring device and / or the detection unit and / or the arithmetic unit.
  • the correlation can be established by the arithmetic unit, for example, by the fact that the arithmetic unit assigns the irregularity to the run parameter, for. For example, by a measured value is isolated and written according to the other measured value assignable in a table.
  • the computer unit can execute a computer program which establishes the correlation.
  • the unwinding device in particular the processing unit of the unwinding device, can be designed to carry out a quantification method for determining a number of products produced from the web material.
  • the unwinding device in particular, for the unwinding device to be designed for the production of sacks from the sheet material, in particular from tubular and / or flat sheet material.
  • This can be the Unwinding at least one folding means for folding the bags and / or at least one closure means for closing the bags.
  • the closure means may be configured to form a fold and / or to weld the web material to close the bags.
  • the folding means may comprise a guide means by which the sheet material is in particular during driving so conductive that a bag shape is formed at least partially from the sheet material.
  • the unwinding device can have at least one filling means, by means of which sacks produced from the web material can be filled.
  • the unwinding device may be suitable for producing sacks ready for delivery from the web material and / or filling products, in particular so that the entire manufacturing process of the sacks can be reproduced by the unwinding device from the delivery of the raw material (eg web material and filling products). By detecting one or more irregularities, rejects can be reduced at the same time and / or delivery of defective bags can be avoided.
  • the unwinding device thus preferably comprises a so-called FFS machine, the abbreviation FFS meaning "shape, fill and seal".
  • the arithmetic unit is in communication communication with a measuring unit for detecting a preferred parameter on the web material.
  • the measuring unit may additionally be designed to measure a number of revolutions of the reel.
  • the measuring unit may be part of the detection unit or form an independent structural unit within the unwinding device.
  • a measuring means for measuring the number of revolutions of a drive means can be provided.
  • the number of revolutions may in particular comprise one revolution angle.
  • the drive means may comprise at least one drive roller which by rotation drives the web material by friction and has a fixed diameter.
  • the actual propulsion of the web material can then be determined by the measuring unit and / or the arithmetic unit, the actual propulsion of the web material. This can preferably be corrected by measuring a number of revolutions in order to achieve increased accuracy. This can be given a simple way to determine the actual propulsion of the web material and thus the running parameters, wherein a diameter of the roll plays no or only a minor role.
  • a calculation of the running parameter can be carried out by the arithmetic unit.
  • the calculation may be performed based on a measurement of a merit of the web material and, in particular, a measurement of a revolution number of the reel.
  • the number of revolutions of the reel can serve to take into account a slip on preference in the calculation, and thus improve the accuracy of the calculation result or the measurement result with preference.
  • the arithmetic unit can advantageously have a communication interface for data communication with a database, so that the correlation of the irregularity to the run parameter can be entered into the database via the communication interface.
  • the communication interface may include a network connection or the like for wired transmission from the arithmetic unit to the database. Additionally or alternatively, the communication interface may enable wireless communication and include, for example, a WLAN unit.
  • the database can continue to be provided on a storage medium, which z. B. may be part of the unwinding device.
  • the arithmetic unit can be in communication with the memory unit, for example, directly via an internal wired connection.
  • the memory unit may have a computer program for carrying out a monitoring method and / or for establishing the correlation between the running parameter and the irregularity.
  • the database may be provided in particular on an external server and / or on an internal storage unit of the winding device. Additionally or alternatively, the database may be provided on a mobile storage unit.
  • the communication interface may be a USB interface through which z. B. an external hard drive can be brought into connection with the arithmetic unit, so that the database is portable.
  • the database allows a number of irregularities and run parameters to be correlated and retrieved at a later time to identify particular patterns.
  • the arithmetic unit is in communication connection with an output unit and configured to output a visual and / or audible warning message via the output unit when the irregularity is detected or the irregularity of one is a predefined type of irregularity.
  • the output unit may include, for example, a display, a light and / or a speaker to display or deliver the warning message.
  • an operator of the unwinding device can be informed by means of a warning message, so that it is not necessary for him to keep an eye on the unwinding device, but nevertheless be informed about the output unit when a problem or a process-relevant event occurs.
  • an unwinding system for carrying out a unwinding process of a web material is claimed by a reel.
  • the unwinding process can be monitored by a monitoring method according to the invention.
  • the unwinding system further comprises an unwinding device, which is preferably an unwinding device according to the invention.
  • the unwinding device has a winding holder, on which the winding can be stored during the unwinding process, and a drive means, by which a propulsion of the web material can be generated, and a detection unit by which at least one irregularity of the web material and / or the unwinding process can be detected.
  • the detection unit is in communication with a computer unit, wherein a correlation of the irregularity to at least one running parameter of the coil and can be determined by the arithmetic unit.
  • an unwinding system brings about the same advantages as have been described in detail with reference to an unwinding device according to the invention and / or a monitoring method according to the invention.
  • an external server can be provided with a database which is in communication connection with the arithmetic unit, so that the correlation of the irregularity to the run parameter can be entered into the database via the communication interface.
  • the unwinding system can be distributed over several locations, for example, and thus at least partially decouple the server from the unwinding device.
  • the server can be located at an external service provider, so that, for example, several unwinding devices can communicate with the same server. This can be cost savings, if the server is not part the unwinding device, and on the other hand, several unwinding devices can use the same database to draw conclusions about causes of z. B. recurring irregularities to be able to produce with improved accuracy.
  • the irregularities and running parameters or their correlation can also be assessed externally in order to draw conclusions from them.
  • a production method of web material and / or winding processes can then be improved.
  • FIG. 1 1 shows an unwinding system 5 according to the invention for carrying out a unwinding process of a web material 11 by means of an unwinding device 2.
  • the unwinding device 2 comprises a winding holder 70 on which a reel 10 can be stored, or is stored during the unwinding process.
  • the winding 10 comprises a winding tube 10.1 and at least partially a web material 11.
  • the winding holder 70 is adapted to rotatably support the winding 10, so that the winding 10 rotates during the development of the web material 11 accordingly.
  • a drive means 50 is further provided.
  • the drive means 50 can be designed, for example, to rotate the roll 10 and / or comprise a drive roll 51 which rolls with the sheet material 11 to thereby pull the sheet material 11 from the roll 10.
  • the winding 10 is mounted only rotationally on the winding holder 70, so that the rotation can be realized from a preference by the drive rollers 51.
  • a detection unit 20 is provided, by which at least one irregularity 12 of the web material 11 and / or the unwinding process can be detected.
  • the irregularity 12 is in FIG. 1 shown as missing a printed image.
  • the detection unit 20 therefore comprises a camera for optical detection of the web material 11 and the irregularity 12.
  • a measuring unit 21 is provided, by which the propulsion 11.1 of the web material 11 can be detected and a measurement of a number of revolutions 11.2 of the coil 10 is possible.
  • the detection unit 20 and the measuring unit 21 are in communication with a computing unit 30, so that a correlation between the irregularity 12 and a running parameter 13 can be determined by the computing unit 30.
  • the running parameter 13 may include a length of the unwound web material 11 to irregularity 12 and / or a length of the web material 11 to the end of the irregularity 12. Thereby, a position of the irregularity 12 on the web material 11 with respect to the winding 10 can be determined.
  • the arithmetic unit 30 also has a communication interface 31 in order to be able to enter the irregularity 12 into a database 40 in correlation with the run parameter 13.
  • the database 40 is as Part of an internal memory unit 41 of the unwinding device 2 is provided and is preferably directly wired wired to the arithmetic unit 30 via the communication interface 31 in connection.
  • the computer unit 30 can preferably execute a computer program, by means of which the correlation between the irregularity 12 and the run parameter 13 can be established.
  • the correlation may arise from the fact that the run parameter 13 with the irregularity 12 is registered with the irregular data 12 in the database 40 by the arithmetic unit 30.
  • the correlation allows a conclusion to a manufacturing process of the roll 10 and / or on the unwinding process.
  • the irregularity 12 can be localized.
  • an occurrence of a certain irregularity 12 in the core can, for example, suggest that the winding 10 has been wound too hard.
  • the arithmetic unit 30 is in communication with an output unit 60, so that a visual and / or audible warning message can be output via the output unit 60 when the irregularity 12 is detected or the irregularity 12 is of a predefined irregularity type.
  • the irregularity 12 may be defined such that a printed image is missing over a certain length of the web material 11 and in this case a warning message is output to the output unit 60.
  • the output unit 60 may include a wide variety of output means.
  • the output unit 60 further comprises a display 61 on which, on the one hand, different parameters of the unwinding process can be displayed and, on the other hand, the warning message can be output.
  • the detection unit 20 may additionally or alternatively comprise measuring means for measuring a force or a torque of the coil 10 and / or the sheet material 11. Further, exemplary types of irregularity are further in the FIGS. 5a to 5c shown.
  • the computer unit 30 may also preferably carry out a determination of a number of products produced from the web material 11, so that these are determined instead of a count on the basis of the running parameter 13 and thus the number can be assigned to the reel 10.
  • a quantification method for determining the number of the web material 11 produced products be feasible.
  • FIG. 2 shows an inventive unwinding system 5 for performing a unwinding process of a web material 11 of a winding 10.
  • the unwinding system 5 corresponds to the FIG. 2 of the second embodiment substantially the unwinding system 5 of the first embodiment.
  • an external server 42 is provided which has a database 40.
  • the server 42 is in communication with a computing unit 30, so that a correlation of an irregularity 12 to a run parameter 13 can be entered into the database 40 via a communication interface 31.
  • the communication interface 31 may include, for example, an Internet access, which may be configured wired and / or wireless.
  • the unwinding device 2 may comprise a SIM card in order to establish a communication link with the external server 42. Because the external server 42 is outsourced, several unwinding devices 2 can be in communication with the server 42 in order to be able to concentrate the collected data and possibly associate it. As a result, further knowledge about the occurrence of the irregularities can be obtained and / or the accuracy of statements made thereby can be improved. Furthermore, the external server 42 can be cost effective for the unwinding device 2, as this the database 40 z. B. itself does not have and thus an additional internal storage unit is not necessary or can be used for redundancy to improve data security. In particular, by the unwinding system 5 according to FIG. 2 a quantification method for determining a number of products produced from the web material 11 may be feasible.
  • FIG. 3 shows a monitoring method 100 according to the invention for monitoring an unwinding process of an unwinding device 2 in a further exemplary embodiment in a schematic representation of the method steps.
  • the monitoring method 100 comprises an at least partial unwinding 101 of a web material 11 from a reel 10, as also in FIG FIG. 4a is shown.
  • the propulsion 11.1 can be realized, for example, by a drive means 50 of an unwinding device 2 become.
  • the monitoring method 100 comprises detecting 102 at least one irregularity 12 of the web material 11 and / or the unwinding process.
  • a detection unit 20 it can be determined that a certain process parameter deviates.
  • the running parameter 13 may, for. Example, a length 13 to the beginning of the irregularity 12 from the unwound end of the web material 11 and / or a length to the end of the irregularity 12. In particular, an average of the lengths may be formed and / or both lengths in correlation with the irregularity 12 are brought.
  • a correlation is also, for example, in FIG. 4b wherein the correlation comprises an assignability of the irregularity 12 and the running parameter 13.
  • the irregularity 12 is correlated with a time 14, so that the time of occurrence of the irregularity 12 in the unwinding process can be determined later.
  • an entry 104 of the correlation can take place and / or the correlation can be established by entering the irregularity 12 and the run parameter, 13 into a database 40 or can already be prepared beforehand and entered into the database 40 accordingly.
  • the detection unit 20 provides signals to a computing unit 30, which enters the irregularity 12 and the run parameter 13 in the database 40 via a communication section 31.
  • the database 40 is thus part of an unwinding system 5 and may be part of an internal storage unit 41 of an unwinding device 2 or, as in FIG Figure 4c shown to be provided on an external server 42.
  • the monitoring method 100 further includes visually and / or audibly outputting a warning message 105 when the irregularity 12 is detected or the irregularity 12 is of a predefined irregularity type.
  • the visual and / or acoustic output 105 is further in FIG FIG. 4d illustrated, wherein a lighting means 62 of a display unit 60 is provided to visually output the warning message and a speaker 63 is provided to output the warning message acoustically. Further advantages arise when the method 100 visualizes 106 the correlation between the irregularity 12 and the Running parameter 13 includes.
  • Such a visualization 106 is in the Figure 4e represented, for example, a graph on a display 61 of the output unit 60 can be displayed, which plots a process parameter against a running parameter 13.
  • the process parameter is preferably a transparency of a printed image, although various other types of process parameters are conceivable here.
  • a parameter range 16 may be provided which is defined by at least one parameter limit 16.1, preferably by two parameter limits 16.1, 16.2. If the process parameter exceeds one of the parameter limits 16.1 or falls below one of the parameter limits 16.2, an anomaly 12 is assumed.
  • a plurality of irregularities 12, 12. 1 in the context of visualization 106 can also be correlated with a plurality of values 13. 1, 13.
  • a determination 107 of a probability of an association of the irregularity 12 with a production process of the web material 11 and / or with the unwinding process can be carried out.
  • another area may be defined in which an occurrence of the irregularities 12, 12.1 speaks for a cause in the production process of the web material 11 and an occurrence of an irregularity 12 outside this area for a cause in the unwinding process.
  • the determination 107 of the probability can be carried out automatically, so that a degree of automation of the method is further increased, and thus costs can be saved and a reproducibility is improved.
  • a quantification method for determining a number of products produced from the web material 11 may be feasible.
  • FIGS. 5a to 5c show more types of irregularities. So shows FIG. 5a
  • a certain length of a crack may be tolerable and classified as an irregularity 12 from a certain length of the crack.
  • FIG. 5b also shows another possible irregularity 12, wherein a drive means 50 comprises drive rollers 51, which provide a propulsion 11.1 of the web material 11. If it is determined by a detection unit 20, for example, that a preference parameter 51.1 deviates from a desired value, an increased slip on the drive rollers 51 can be detected and thus define an irregularity 12.
  • the slip may include, for example, a difference between an actual propulsion of the web material 11 and the preference parameter 51.1.
  • FIG. 5c further shows an opening of a film tube, wherein the web material 11 is provided at least in a central region in two layers, which are connected to the outer sides of the web material 11.
  • aspirating means 52 in each case suck in and pull apart a surface of the web material 11 so that the tube is formed from the previously flat web material 11.
  • a suction force is not sufficient and the web material 11, for example, has blockages.
  • suction means 52 it may not be possible by means of the suction means 52 to open the web material 11 at a specific location, wherein several aspiration attempts may be provided here. Several aspiration attempts can also be classified as irregularity 12 and reported to a computing unit 30. Thus, for example, a force measurement of the suction means 52 may be provided by the detection unit 20, wherein at an increased force or at a sudden drop in force this can be detected by the computing unit 30 as an irregularity 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
EP18163411.4A 2017-04-21 2018-03-22 Procédé de surveillance destiné à surveiller un processus de déroulement, dispositif de déroulement ainsi que système de déroulement Active EP3392172B1 (fr)

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DE102017108495.9A DE102017108495A1 (de) 2017-04-21 2017-04-21 Überwachungsverfahren zur Überwachung eines Abwickelprozesses, Abwickelvorrichtung sowie Abwickelsystem

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EP3392172B1 EP3392172B1 (fr) 2022-10-26

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US (1) US11078041B2 (fr)
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Publication number Priority date Publication date Assignee Title
DE102017108496B4 (de) * 2017-04-21 2023-06-29 Windmöller & Hölscher Kg Verfahren und Vorrichtungen sowie System zum Auf- und Abwickeln eines Wickels
SE2250794A1 (en) * 2022-06-27 2023-12-28 Valmet Oy Method and system for monitoring the performance of a winding spool in the reel section of a paper machine

Citations (4)

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EP0358236A2 (fr) * 1988-09-09 1990-03-14 Fuji Photo Film Co., Ltd. Méthode pour mesurer la périodicité d'un défaut superficiel
DE4432371A1 (de) * 1994-09-12 1996-03-14 Heidelberger Druckmasch Ag Verfahren zur Erfassung fehlerhafter Einzelnutzen beim Nutzendruck
US20100063750A1 (en) * 2008-09-10 2010-03-11 3M Innovative Properties Company Multi-roller registered repeat defect detection of a web process line
US20110224918A1 (en) * 2010-03-10 2011-09-15 3M Innovative Properties Company Application-specific repeat defect detection in web manufacturing processes

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US6098063A (en) * 1994-02-15 2000-08-01 R. R. Donnelley & Sons Device and method for identifying causes of web breaks in a printing system on web manufacturing attributes
FI108635B (fi) * 1997-06-30 2002-02-28 Metso Paper Inc Menetelmä rullanmuodostuksen laadun määrittämiseksi ja rullanmuodostuksen ohjaamiseksi
ATE333429T1 (de) * 2002-11-13 2006-08-15 Perini Fabio Spa Abwickelvorrichtung für rollen von bahnmaterial mit doppeltem antriebsmechanismus und entsprechendes abwickelverfahren
DE102005024091A1 (de) * 2005-05-25 2006-11-30 Man Roland Druckmaschinen Ag Verfahren und Vorrichtung zum Umspulen eines Bandes
DE102009029083A1 (de) * 2009-09-02 2011-03-03 Voith Patent Gmbh Verfahren zur Kennzeichnung eines Materialbahnabschnittes zum Regeln einer Faserstoffbahnveredelungsanlage
FI123687B (fi) * 2010-11-18 2013-09-30 Abb Oy Menetelmä ja järjestely rullainkäytön yhteydessä
US9221641B2 (en) * 2012-05-08 2015-12-29 Kimberly-Clark Worldwide, Inc. Controller and system for controllably rotating a roll of material
DE102015213709B4 (de) * 2015-07-21 2017-09-21 Achenbach Buschhütten GmbH & Co. KG Verfahren zur Bereitstellung eines längenbezogenen Materialbahndatensatzes einer zu einem Coil gewickelten Materialbahn

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Publication number Priority date Publication date Assignee Title
EP0358236A2 (fr) * 1988-09-09 1990-03-14 Fuji Photo Film Co., Ltd. Méthode pour mesurer la périodicité d'un défaut superficiel
DE4432371A1 (de) * 1994-09-12 1996-03-14 Heidelberger Druckmasch Ag Verfahren zur Erfassung fehlerhafter Einzelnutzen beim Nutzendruck
US20100063750A1 (en) * 2008-09-10 2010-03-11 3M Innovative Properties Company Multi-roller registered repeat defect detection of a web process line
US20110224918A1 (en) * 2010-03-10 2011-09-15 3M Innovative Properties Company Application-specific repeat defect detection in web manufacturing processes

Also Published As

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DE102017108495A1 (de) 2018-10-25
US20180305159A1 (en) 2018-10-25
EP3392172B1 (fr) 2022-10-26
US11078041B2 (en) 2021-08-03

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