EP2442970B1 - Method for operating a gluing system - Google Patents

Method for operating a gluing system Download PDF

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Publication number
EP2442970B1
EP2442970B1 EP10722619.3A EP10722619A EP2442970B1 EP 2442970 B1 EP2442970 B1 EP 2442970B1 EP 10722619 A EP10722619 A EP 10722619A EP 2442970 B1 EP2442970 B1 EP 2442970B1
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EP
European Patent Office
Prior art keywords
glue
master controller
values
controller
glue valve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP10722619.3A
Other languages
German (de)
French (fr)
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EP2442970A1 (en
Inventor
Ralf Barkmann
Wolfgang Rohwedder
Marc-Daniel Stegen
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.)
Focke and Co GmbH and Co KG
Original Assignee
Focke and Co GmbH and Co KG
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Application filed by Focke and Co GmbH and Co KG filed Critical Focke and Co GmbH and Co KG
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated
    • B05C5/0275—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated flow controlled, e.g. by a valve
    • B05C5/0279—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated flow controlled, e.g. by a valve independently, e.g. individually, flow controlled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
    • B05C11/1007—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
    • B05C11/1007—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material
    • B05C11/1013—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material responsive to flow or pressure of liquid or other fluent material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1044—Apparatus or installations for supplying liquid or other fluent material to several applying apparatus or several dispensing outlets, e.g. to several extrusion nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
    • B05C11/1026—Valves
    • B05C11/1028—Lift valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
    • B05C11/1034—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves specially designed for conducting intermittent application of small quantities, e.g. drops, of coating material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0208—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles
    • B05C5/0212—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles only at particular parts of the articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2100/00—Rigid or semi-rigid containers made by folding single-piece sheets, blanks or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/60—Uniting opposed surfaces or edges; Taping
    • B31B50/62—Uniting opposed surfaces or edges; Taping by adhesives
    • B31B50/624—Applying glue on blanks

Definitions

  • the present invention relates to a method of operating a gluing system for gluing blanks for the manufacture and / or packaging of cigarettes or other smokable articles, in which the blanks are conveyed along glue lines of the gluing system.
  • the invention further relates to a corresponding gluing system that can be operated with this method.
  • gluing systems can not or only to a limited extent be used to implement such a method.
  • a central control device takes over the control of all glue valves.
  • unidirectional signal lines to each glue valve extend from the central control device according to the number of valves to be controlled. Return lines from the valves to the controller are not provided.
  • Such controls are static, relatively slow and inflexible.
  • a gluing system in which a glue valve head is assigned a dedicated microcontroller which exchanges data with an external main control during operation.
  • This object is achieved by a method for operating a gluing system having the features of claim 1 and by a corresponding gluing system having the features of claim 6.
  • a superordinate master controller for controlling and / or regulating the glue valves of the gluing system, the individual, the glue valves associated, the master controller downstream controllers - which are each connected to the parent master controller via a suitable data connection - respectively values of at least one control and / or control parameters transmitted, by means of which the respective downstream controller controls and / or regulates the glue valve assigned to it.
  • the values of at least one parameter of the respective glue valves integrated in the gluing system are detected, namely the electrical current which flows through the coil of the electromagnet of the glue valve in the case of movements of the closing element of the glue valve effected by an electromagnet, with reference to FIG the values of the at least one parameter the type of the corresponding glue valve and / or error states thereof are recognized and / or determined.
  • control and / or regulation tasks on the one hand at least one higher-order master controller and on the other hand downstream controllers, which are assigned to the individual glue valves.
  • the respective subordinate controller takes over, in particular, time-critical control and / or regulation tasks as well as possibly amplifier functions for amplifying control signals.
  • the parameters by means of which he performs control tasks are managed by the master controller and, if appropriate, calculated using suitable algorithms or selected from a database which can be accessed by the master controller.
  • each subordinate controller controls and / or regulates only one glue valve of the gluing system.
  • the appropriate number of downstream controllers can be used.
  • the control devices on individual control cards each having outputs for multiple valves. Should there be fewer or more valves must be controlled as outputs are present, there disadvantageously certain outputs of the control cards remain unused.
  • sensors can be connected to the downstream controllers, detect the measured values of at least one measured variable, that the downstream controller transmit these measurements to the master controller and that the master controller for the relevant, connected to the respective controller Leimventil dependent on these measured values calculates the control and / or control parameters and / or selects from a database associated with the master controller. Subsequently, the calculated and / or selected parameter is transmitted to the respective downstream controller.
  • the temperature of the glue supplied to the respective glue valve or of the glue present in the respective glue valve can be detected.
  • the pressure can be measured downstream of a feed pump, under which the glue is supplied to the respective glue valve.
  • parameters can be detected which characterize the movements of a closure member moving within the respective glue valve in the glue.
  • the one or more corresponding sensors of the glue valves each measure these at least one measured variable.
  • the respective downstream controllers then transmit the measured values to the higher-level master controller via their named data connections. This manages the measured values and evaluates them.
  • the master controller can then transmit new, adapted values of the at least one control and / or regulating parameter to the glue valves, for example.
  • the evaluation can also reveal that the value of the at least one control and / or control parameter, by means of which the respective downstream controller controls and / or regulates the glue valve connected to it, does not have to be adapted. In this case, the corresponding value of the control and / or control parameter that the downstream controller can access is naturally not changed.
  • a control and / or regulating parameter on the basis of which the downstream controllers control / regulate the respectively connected glue valve, can, for example, determine the intensity and / or the duration of the electrical current applied to an electromagnet of the respective glue valve, by means of which a closure member of the respective glue valve is moved during opening of the glue valve during operation of the glueing system.
  • Leimventile with such electromagnets for the movement of sealing organs are, for example, in the DE 10 2008 027 259 whose content is hereby fully integrated.
  • the gluing system has a modular structure. More specifically, the downstream controllers are each designed as individual modules which can be connected to the master controller and / or to at least one further downstream controller via suitable contact connection means, in particular via contact plugs and / or contact tongues.
  • the contact connection means are respectively arranged at the ends of signal lines for transmitting electrical (or possibly electromagnetic) signals which run on or in the individual controllers.
  • the contact connection means interconnect these signal lines of the individual controllers.
  • the signal lines are lines of a suitable data bus system, such as a CAN bus system.
  • the housing of a first downstream controller in the state connecting the signal lines at least partially applied to the housing of the master controller.
  • the housing of a second downstream controller in the connected state at least partially applied to the housing of the first downstream controller, the housing of a third subordinate controller to the housing of the second, etc.
  • the glueing system can be correspondingly expanded by a further downstream controller for controlling / regulating the glue valve that has been added.
  • This modular design allows in a simple manner to supplement the system by more glue valves or vice versa to remove one or more glue valves from the system.
  • the master controller After connecting the master controller and the downstream controller via the contact connection means, the master controller is connected to each individual downstream controller in the manner of a bus system.
  • Fig. 1 shows a gluing system 10, which is used in connection with the gluing of blanks for the manufacture and / or packaging of cigarettes or other smokable objects. It may be, for example, the production of a cigarette pack of the type folding box or hinged lid.
  • the gluing system 10 must be operated in such a way that the individual glue portions are positioned on the blank at desired times, in desired quantities and / or in desired patterns.
  • the latter has a master controller 13, to which individual downstream controllers 15 are connected by means of suitable signal or data lines 14.
  • the data lines 14 are each part of a bus system, in the present case a so-called CAN bus system. This bus system allows bidirectional data communication between the master controller 13 and the individual downstream controllers 15.
  • the downstream controllers 15 are connected to a power supply 16 via suitable power lines 17.
  • an electromagnet with corresponding coil drive 19 is located inside the glue valve 11 and serves to move a closing member which is at least partially surrounded by the electromagnet or coil of the electromagnet. By a restoring force, the closure member is held in the currentless state of the electromagnet in a conventional manner within a valve seat.
  • a sensor for detecting a relevant for the proper operation of the glue valves 11 measured value is arranged in each case via a control line 18b.
  • a temperature sensor 20 extending into the valve interior. With this, the temperature of the glue located in operation within the glue valve 11 can be detected as a measured variable.
  • controller 15 ends in each case one of a line controller 21 outgoing control line 22nd
  • the distance control 21 are transmitted to one of its inputs signals of a rotary encoder 23.
  • the rotary encoder 21 detects rotations of the central machine axis of a packaging machine, not shown, known per se for packaging cigarettes.
  • the rotary encoder 23 is connected by means of a signal line 24 to the track controller 21.
  • Both the master controller 13 and the track controller 21 are connected via corresponding signal or data lines 25, 26 to the central machine control 27 of the packaging machine.
  • the line 25, which connects the master controller 13 to the machine controller 27, formed as an Ethernet connection, via the bidirectional data can be exchanged.
  • the signal line 26 between the path controller 21 and the machine controller 27 is also bidirectional in the present case.
  • the control of the gluing system 10 is carried out as follows:
  • the path controller 21 accesses the data transmission line 26 to a database associated with the machine control 27.
  • glue dot patterns are deposited in the machine control 27 or the database.
  • the path controller 21 sends corresponding control signals to the downstream controller 15.
  • downstream controllers 15 are each notified or specify times at which the glue valves 11 have to be opened.
  • the opening itself takes place by applying the appropriate electromagnets with suitable electrical currents.
  • each subordinate controller 15 has an amplifier unit which sufficiently amplifies the small control signal currents originating from the line controller 21 in order to be able to effect suitable opening movements of the closure members of the glue valves with the aid of the electromagnets.
  • the magnitude of the current that flows through the electromagnet during an opening cycle is controlled by the downstream controllers 15 based on control parameters stored in the controllers 15 or in their associated memories or databases. These parameters can be adjusted in operation depending on the respective measured by the sensors 20 glue temperatures.
  • the viscosity of glue is temperature-dependent.
  • the glue in a particular glue valve 11 may have such a low viscosity at a particularly high temperature deviating from predetermined setpoints that a readjustment of the glue valve 11 becomes necessary.
  • first of all the temperature values which the respective temperature sensor 20 measures are transmitted from the respective controller 15 to the master controller 13.
  • the Master controller 13 evaluates the measured temperatures for each glue valve 11 on the basis of predetermined desired values or on the basis of other criteria.
  • the respective glue valve 11 must remain open for a correspondingly shorter time than is the case at a lower glue temperature in order to be able to guarantee a predetermined glue serving size in spite of the high temperature.
  • the master controller 13 sends a suitably adapted control parameter, which represents the opening time of the glue valve to be adapted, to the respective downstream controller 15.
  • the previously stored value for the opening duration in the controller 15 is overwritten.
  • the downstream controller 15 accordingly adjusts the opening time of the same in the control of the glue valve 11.
  • the strength of the so-called opening current flowing through the electromagnet can be adjusted and / or the strength of the so-called holding current.
  • the values for the opening current or the holding current are also each stored as parameters in the downstream controllers 15 and dynamically adaptable in the manner described above by the master controller 13 as a function of the measured glue temperature.
  • the parameters required for the production of a particular package type or for gluing the blanks of this type of package are transmitted to the master controller 13 from the central machine controller 27 via the Ethernet connection 25 at the start of production.
  • the corresponding parameters are stored in suitable databases of the machine control.
  • the glue dot patterns are stored there, which can be accessed by the pattern controller 21.
  • the master controller 13 can either calculate the new values of the control parameters to be transmitted to the downstream controllers 15 using suitable algorithms and / or select from databases in which, for example, the relevant control and / or or control parameters are stored.
  • each glue valve 11 can be individually controlled independently of the other glue valves 11.
  • the glue valves 11, namely the electromagnets installed therein, have characteristic current flow curves 28a-28c.
  • the current flowing through the coil of the electromagnet in operation current is detected according to the invention as a parameter.
  • the current curve 28b shows a curve deviating from the current curve 28a of a valve whose specifications do not match the gluing system 10.
  • a non-matching glue valve e.g. an electromagnet with mismatched specifications be installed.
  • the master controller 13 now compares the actual current values or curves of the respective glue valves with stored desired current curves. Upon detection of deviations, the master controller 13 recognizes that a non-matching glue valve of a different specification is installed.
  • the current curve 28c represents the current profile of a matching but defective glue valve. This, too, is recognized by the master controller 13 by appropriate comparison with desired profiles.
  • the detected current profiles can also be evaluated on the basis of other predetermined criteria in order to detect any errors or deviating specifications.
  • the master controller 13 initiates a signal representing a glue valve error and / or a signal representing the absence of a predetermined feature of the analyzed glue valve.
  • a signal representing a glue valve error and / or a signal representing the absence of a predetermined feature of the analyzed glue valve As a result, an operator can be informed of this via an acoustic, optical or other signal.
  • the master controller 13 depending on the analysis of the current waveforms, selects a specific control / regulation parameter set from a database and transmits it to the dependent controllers 15.
  • downstream controllers 15a-e are designed as individual modules, which are each connected to the master controller 13 and / or to at least one further downstream controller 15a-e via contact connection means, namely electrically conductive contact tongues 29.
  • the master controller 13 and each downstream controller 15a-e have for this purpose on their front and / or rear sides of their respective housing in each case a corresponding contact tongue 29.
  • the contact tongues 29 are each attached, relative to the individual controllers 13, 15a-e, to ends of corresponding signal lines or data lines which run inside the housing of the controllers 13, 15a-e.
  • a first subordinate controller 15a is first connected to the master controller 13.
  • the master controller 13 and the first subordinate controller 15a are first placed against each other and locked together by not shown locking means in a mutually aligned position.
  • an electrically conductive contact tongue 29 on the rear side of the housing of the master controller 13 and the correspondingly positioned contact tongue 29 of the first downstream controller 15 a contact against each other at the front thereof.
  • Via the two contact tongues 29 on the respective sides of the housing of the controllers 13, 15a a conductive connection 14 is thus established between the controllers 13, 15a.
  • the second controller 15b which is integrated into the system 10, in turn rests against the front of its housing on the rear side of the first downstream controller 15a already connected to the master controller 13 or connected thereto. In the manner described above, in turn, their corresponding contact tongues 29 are connected to one another or these are in contact with each other.
  • Additional downstream controllers 15c-15e are added to the system 10 in an analogous manner.
  • the lines in the controllers 13, 15a-e are configured and interconnected in such a way that they form a total of a bus system, namely a so-called CAN bus.
  • Each controller 15a-e controls precisely one glue valve 11.
  • the gluing system 10 can be easily expanded. If the glueing system 10, a further glue valve 11 must be added, so in the manner described above, another controller module 15 with the outermost downstream controller 15e of Fig. 2 connected.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
  • Coating Apparatus (AREA)
  • Wrapping Of Specific Fragile Articles (AREA)

Description

Die vorliegende Erfindung betrifft ein Verfahren zum Betreiben eines Beleimungssystems zur Beleimung von Zuschnitten zur Herstellung und/oder Verpackung von Zigaretten oder anderen rauchbaren Gegenständen, bei dem die Zuschnitte an Leimventilen des Beleimungssystems entlang gefördert werden. Die Erfindung betrifft des Weiteren ein entsprechendes Beleimungssystem, das mit diesem Verfahren betrieben werden kann.The present invention relates to a method of operating a gluing system for gluing blanks for the manufacture and / or packaging of cigarettes or other smokable articles, in which the blanks are conveyed along glue lines of the gluing system. The invention further relates to a corresponding gluing system that can be operated with this method.

Die in der Zigarettenindustrie verwendeten Beleimungssysteme zur Beleimung von Zuschnitten werden zunehmend komplexer und ausgefeilter. So wird etwa in der vorangemeldeten DE 10 2008 027 259 vorgeschlagen, die Leimventile abhängig von verschiedenen Betriebsparametern so zu regeln, dass die Größen der von den Leimventilen jeweils auf den Zuschnitten erzeugten Leimportionen während des gesamten Betriebs auf einem konstanten Wert gehalten werden können.The gluing systems used in the cigarette industry for gluing blanks are becoming increasingly complex and sophisticated. So is about in the pre-registered DE 10 2008 027 259 proposed to regulate the glue valves depending on various operating parameters so that the sizes of each of the glue portions generated by the glue valves on the blanks during the entire operation can be kept at a constant value.

Herkömmliche Steuerungen von Beleimungssystemen können zur Umsetzung eines derartigen Verfahrens nicht oder nur bedingt eingesetzt werden. Bei solchen Steuerungen übernimmt eine zentrale Steuerungseinrichtung die Steuerung sämtlicher Leimventile. Zu diesem Zweck verlaufen von der zentralen Steuerungseinrichtung entsprechend der Anzahl zu steuernder Ventile unidirektionale Signalleitungen zu jedem Leimventil. Rückleitungen von den Ventilen zu der Steuerung sind dagegen nicht vorgesehen. Derartige Steuerungen sind statisch, relativ langsam und unflexibel.Conventional control systems of gluing systems can not or only to a limited extent be used to implement such a method. In such controls, a central control device takes over the control of all glue valves. For this purpose, unidirectional signal lines to each glue valve extend from the central control device according to the number of valves to be controlled. Return lines from the valves to the controller are not provided. Such controls are static, relatively slow and inflexible.

In der Druckschrift US 2009/0084773 A1 ist ein Beleimungssystem gezeigt, bei denen einem Leimventilkopf ein eigener Mikrocontroller zugeordnet ist, der im Betrieb mit einer externen Hauptsteuerung Daten austauscht.In the publication US 2009/0084773 A1 a gluing system is shown in which a glue valve head is assigned a dedicated microcontroller which exchanges data with an external main control during operation.

In der WO 2008/151804 A1 ist ein Ventil gezeigt, dem eine eigene, lokale Steuerung zugeordnet ist.In the WO 2008/151804 A1 a valve is shown, which is assigned its own, local control.

Ausgehend von diesem Stand der Technik ist es Aufgabe der vorliegenden Erfindung, ein Verfahren der eingangs genannten Art zum Betreiben eines Beleimungssystems anzugeben, mit dem auch komplexere Beleimungssysteme möglichst zuverlässig gesteuert und/oder geregelt werden können. Es ist des Weiteren Aufgabe der vorliegenden Erfindung, ein Beleimungssystem der eingangs genannten Art anzugeben, dass mit dem vorgenannten Verfahren betrieben werden kann.Based on this prior art, it is an object of the present invention to provide a method of the type mentioned for operating a Beleimungssystems, with the more complex Beleimungssysteme can be controlled as possible and / or controlled as possible. It is a further object of the present invention to provide a gluing system of the type mentioned that can be operated with the aforementioned method.

Diese Aufgabe wird gelöst durch ein Verfahren zum Betreiben eines Beleimungssystems mit den Merkmalen des Anspruchs 1 sowie durch ein entsprechendes Beleimungssystem mit den Merkmalen des Anspruchs 6.This object is achieved by a method for operating a gluing system having the features of claim 1 and by a corresponding gluing system having the features of claim 6.

Danach ist zur Steuerung und/oder Regelung der Leimventile des Beleimungssystems ein übergeordneter Mastercontroller vorgesehen, der einzelnen, den Leimventilen zugeordneten, dem Mastercontroller nachgeordneten Controllern - die jeweils mit dem übergeordneten Mastercontroller über eine geeignete Datenverbindung verbunden sind - jeweils Werte mindestens eines Steuer- und/oder Regelparameters übermittelt, anhand derer der jeweilige nachgeordnete Controller das ihm zugeordnete Leimventil steuert und/oder regelt. Für ein, mehrere oder jedes Leimventil werden die Werte mindestens einer Kenngröße der jeweils in das Beleimungssystem integrierten Leimventile erfasst, nämlich des elektrischen Stroms, der bei von einem Elektromagneten bewirkten Bewegungen des Verschlussorgans des jeweiligen Leimventils durch die Spule des Elektromagneten des Leimventils fließt, wobei anhand der Werte der mindestens einen Kenngröße die Art des entsprechenden Leimventils und/oder Fehlerzustände desselben erkannt und/oder ermittelt werden.Thereafter, a superordinate master controller is provided for controlling and / or regulating the glue valves of the gluing system, the individual, the glue valves associated, the master controller downstream controllers - which are each connected to the parent master controller via a suitable data connection - respectively values of at least one control and / or control parameters transmitted, by means of which the respective downstream controller controls and / or regulates the glue valve assigned to it. For one, several or each glue valve, the values of at least one parameter of the respective glue valves integrated in the gluing system are detected, namely the electrical current which flows through the coil of the electromagnet of the glue valve in the case of movements of the closing element of the glue valve effected by an electromagnet, with reference to FIG the values of the at least one parameter the type of the corresponding glue valve and / or error states thereof are recognized and / or determined.

Es erfolgt erfindungsgemäß eine Aufteilung von Steuerungs- und/oder Regelungsaufgaben auf einerseits mindestens einen übergeordneten Mastercontroller und auf andererseits nachgeordnete Controller, die den einzelnen Leimventilen zugewiesen sind. Bei der erfindungsgemäßen Lösung übernimmt der jeweils nachgeordnete Controller insbesondere zeitkritische Steuerungs- und/oder Regelungsaufgaben sowie ggf. Verstärkerfunktionen zur Verstärkung von Steuersignalen. Die Parameter, anhand derer er Steuerungs-/Regelungsaufgaben vollzieht, werden von dem Mastercontroller verwaltet und gegebenenfalls anhand geeigneter Algorithmen errechnet oder aus einer Datenbank ausgewählt, auf die der Mastercontroller zugreifen kann.According to the invention, there is a distribution of control and / or regulation tasks on the one hand at least one higher-order master controller and on the other hand downstream controllers, which are assigned to the individual glue valves. In the solution according to the invention, the respective subordinate controller takes over, in particular, time-critical control and / or regulation tasks as well as possibly amplifier functions for amplifying control signals. The parameters by means of which he performs control tasks are managed by the master controller and, if appropriate, calculated using suitable algorithms or selected from a database which can be accessed by the master controller.

Vorteilhafterweise steuert und/oder regelt jeder nachgeordnete Controller erfindungsgemäß nur ein Leimventil des Beleimungssystems. So kann für jede Anzahl von Leimventilen, die in dem Beleimungssystem eingesetzt werden sollen, die passende Anzahl von nachgeordneten Controllern verwendet werden. Im Stand der Technik dagegen weisen die Steuerungseinrichtungen einzelne Steuerkarten auf, die jeweils über Ausgänge für mehrere Ventile verfügen. Sollten dabei weniger oder mehr Ventile angesteuert werden müssen als Ausgänge vorhanden sind, bleiben dort dementsprechend nachteiligerweise bestimmte Ausgänge der Steuerungskarten ungenutzt.Advantageously, according to the invention, each subordinate controller controls and / or regulates only one glue valve of the gluing system. Thus, for every number of glue valves to be used in the gluing system, the appropriate number of downstream controllers can be used. In the prior art, however, the control devices on individual control cards, each having outputs for multiple valves. Should there be fewer or more valves must be controlled as outputs are present, there disadvantageously certain outputs of the control cards remain unused.

Gemäß einer weiteren Ausführungsform der Erfindung ist vorgesehen, dass an den nachgeordneten Controllern jeweils Sensoren anschließbar sind, die Messwerte mindestens einer Messgröße erfassen, dass die nachgeordneten Controller diese Messwerte jeweils an den Mastercontroller übermitteln und dass der Mastercontroller für das betreffende, an den jeweiligen Controller angeschlossene Leimventil abhängig von diesen Messwerten die Steuer- und/oder Regelparameter errechnet und/oder aus einer dem Mastercontroller zugeordneten Datenbank auswählt. Anschließend wird der errechnete und/oder ausgewählte Parameter dem jeweiligen nachgeordneten Controller übermittelt.According to a further embodiment of the invention, it is provided that in each case sensors can be connected to the downstream controllers, detect the measured values of at least one measured variable, that the downstream controller transmit these measurements to the master controller and that the master controller for the relevant, connected to the respective controller Leimventil dependent on these measured values calculates the control and / or control parameters and / or selects from a database associated with the master controller. Subsequently, the calculated and / or selected parameter is transmitted to the respective downstream controller.

Als von dem an den jeweiligen Controller angeschlossenen Sensor zu messende Messgröße kann die Temperatur des dem jeweiligen Leimventil zugeführten oder des in dem jeweiligen Leimventil befindlichen Leims erfasst werden. Alternativ oder zusätzlich kann der Druck stromab einer Förderpumpe gemessen werden, unter dem der Leim dem jeweiligen Leimventil zugeführt wird. Weiter können Kenngrößen erfasst werden, die Bewegungen eines sich innerhalb des jeweiligen Leimventils in dem Leim bewegenden Verschlussorgans desselben kennzeichnen.As the measured variable to be measured by the sensor connected to the respective controller, the temperature of the glue supplied to the respective glue valve or of the glue present in the respective glue valve can be detected. Alternatively or additionally, the pressure can be measured downstream of a feed pump, under which the glue is supplied to the respective glue valve. Furthermore, parameters can be detected which characterize the movements of a closure member moving within the respective glue valve in the glue.

Der oder die entsprechenden Sensoren der Leimventile messen demnach jeweils diese mindestens eine Messgröße. Die jeweiligen nachgeordneten Controller übersenden dann die Messwerte über ihre genannten Datenverbindungen an den übergeordneten Mastercontroller. Dieser verwaltet die Messwerte und wertet diese aus. Abhängig von dem Ergebnis der Auswertung kann der Mastercontroller anschließend den Leimventilen beispielsweise jeweils neue, angepasste Werte des mindestens einen Steuer- und/oder Regelparameters übermitteln. Die Auswertung kann natürlich auch ergeben, dass der Wert des mindestens einen Steuer- und/oder Regelparameters, anhand dessen der jeweilige nachgeordnete Controller das an ihm angeschlossene Leimventil steuert und/oder regelt, nicht angepasst werden muss. In diesem Fall wird der entsprechende Wert des Steuer- und/oder Regelparameters, auf den der nachgeordnete Controller zugreifen kann, naturgemäß nicht geändert.Accordingly, the one or more corresponding sensors of the glue valves each measure these at least one measured variable. The respective downstream controllers then transmit the measured values to the higher-level master controller via their named data connections. This manages the measured values and evaluates them. Depending on the result of the evaluation, the master controller can then transmit new, adapted values of the at least one control and / or regulating parameter to the glue valves, for example. Of course, the evaluation can also reveal that the value of the at least one control and / or control parameter, by means of which the respective downstream controller controls and / or regulates the glue valve connected to it, does not have to be adapted. In this case, the corresponding value of the control and / or control parameter that the downstream controller can access is naturally not changed.

Ein Steuer- und/oder Regelparameter, anhand dessen die nachgeordneten Controller das jeweils angeschlossene Leimventil steuern/regeln kann beispielsweise die Stärke und/oder die Zeitdauer des elektrischen Stroms sein, mit dem ein Elektromagnet des jeweiligen Leimventils beaufschlagt wird, durch den zur Öffnung des Leimventils während des Betriebs des Beleimungssystems ein Verschlussorgan des jeweiligen Leimventils bewegt wird. Leimventile mit derartigen Elektromagneten zur Bewegung von Verschlussorgänen sind beispielsweise in der DE 10 2008 027 259 beschrieben, deren Inhalt hiermit vollumfänglich integriert wird.A control and / or regulating parameter, on the basis of which the downstream controllers control / regulate the respectively connected glue valve, can, for example, determine the intensity and / or the duration of the electrical current applied to an electromagnet of the respective glue valve, by means of which a closure member of the respective glue valve is moved during opening of the glue valve during operation of the glueing system. Leimventile with such electromagnets for the movement of sealing organs are, for example, in the DE 10 2008 027 259 whose content is hereby fully integrated.

Gemäß einer weiteren wichtigen und eigenständigen Ausführungsform ist das Beleimungssystem modular aufgebaut. Genauer gesagt sind die nachgeordneten Controller jeweils als einzelne Module ausgebildet, die jeweils mit dem Mastercontroller und/oder mit mindestens einem weiteren nachgeordneten Controller über geeignete Kontaktverbindungsmittel verbindbar sind, insbesondere über Kontaktstecker und/oder Kontaktzungen. Die Kontaktverbindungsmittel sind jeweils an den Enden von Signalleitungen zur Übertragung elektrischer (oder ggf. elektromagnetischer) Signale angeordnet, die an oder in den einzelnen Controllern verlaufen. Die Kontaktverbindungsmittel verbinden diese Signalleitungen der einzelnen Controller miteinander. Bevorzugt sind die Signalleitungen dabei Leitungen eines geeigneten Datenbussystems, etwa eines CAN-Bussystems. In einer besonders bevorzugten Ausführungsform liegt dabei das Gehäuse eines ersten nachgeordneten Controllers im die Signalleitungen verbindenden Zustand zumindest bereichsweise an dem Gehäuse des Mastercontrollers an. In entsprechender Weise liegt das Gehäuse eines zweiten nachgeordneten Controller im derartig verbundenen Zustand mindestens bereichsweise an dem Gehäuse des ersten nachgeordneten Controllers an, das Gehäuse eines dritten nachgeordneten Controllers an dem Gehäuse des zweiten usw.According to another important and independent embodiment, the gluing system has a modular structure. More specifically, the downstream controllers are each designed as individual modules which can be connected to the master controller and / or to at least one further downstream controller via suitable contact connection means, in particular via contact plugs and / or contact tongues. The contact connection means are respectively arranged at the ends of signal lines for transmitting electrical (or possibly electromagnetic) signals which run on or in the individual controllers. The contact connection means interconnect these signal lines of the individual controllers. Preferably, the signal lines are lines of a suitable data bus system, such as a CAN bus system. In a particularly preferred embodiment, the housing of a first downstream controller in the state connecting the signal lines at least partially applied to the housing of the master controller. In a corresponding manner, the housing of a second downstream controller in the connected state at least partially applied to the housing of the first downstream controller, the housing of a third subordinate controller to the housing of the second, etc.

Vorzugsweise ist bei Integration eines weiteren Leimventils in das Beleimungssystem das Beleimungssystem entsprechend erweiterbar um einen weiteren nachgeordneten Controller zur Steuerung/Regelung des hinzugefügten Leimventils. Dieser modulare Aufbau erlaubt in einfacher Weise, das System um weitere Leimventile zu ergänzen oder auch umgekehrt ein oder mehrere Leimventile aus dem System zu entfernen. Nach Verbindung des Mastercontrollers und der nachgeordneten Controller über die Kontaktverbindungsmittel ist der Mastercontroller datentechnisch mit jedem einzelnen nachgeordneten Controller nach Art eines Bussystems verbunden.Preferably, when integrating a further glue valve into the glueing system, the glueing system can be correspondingly expanded by a further downstream controller for controlling / regulating the glue valve that has been added. This modular design allows in a simple manner to supplement the system by more glue valves or vice versa to remove one or more glue valves from the system. After connecting the master controller and the downstream controller via the contact connection means, the master controller is connected to each individual downstream controller in the manner of a bus system.

Weitere Vorteile der vorliegenden Erfindung ergeben sich aus den beigefügten Unteransprüchen, aus der nachfolgenden Beschreibung eines bevorzugten Ausführungsbeispiels sowie aus den beigefügten Zeichnungen.Further advantages of the present invention will become apparent from the appended subclaims, from the following description of a preferred embodiment and from the accompanying drawings.

Darin zeigen:

Fig. 1
eine schematische Darstellung des erfindungsgemäßen Leimsystems zur Beleimung von Zuschnitten bei der Herstellung/Verpackung von Zigaretten,
Fig. 2
einen Mastercontroller des vorgenannten Beleimungssystems mit daran angesteckten, nachgeordneten Controllern in Schrägansicht,
Fig. 3
ein Strom-Zeit-Diagramm, das die Stromverläufe durch den Elektromagnet verschiedener, in das Beleimungssystem integrierbarer Leimventile zeigt.
Show:
Fig. 1
a schematic representation of the glue system according to the invention for gluing blanks in the production / packaging of cigarettes,
Fig. 2
a master controller of the aforementioned gluing system with attached, downstream controllers in an oblique view,
Fig. 3
a current-time diagram showing the current flows through the electromagnet of different, can be integrated in the gluing system Leimventile.

Fig. 1 zeigt ein Beleimungssystem 10, das im Zusammenhang mit der Beleimung von Zuschnitten zur Herstellung und/oder Verpackung von Zigaretten oder anderen rauchbaren Gegenständen eingesetzt wird. Es kann sich beispielsweise um die Fertigung einer Zigarettenpackung vom Typ Klappschachtel bzw. Hinge-Lid handeln. Fig. 1 shows a gluing system 10, which is used in connection with the gluing of blanks for the manufacture and / or packaging of cigarettes or other smokable objects. It may be, for example, the production of a cigarette pack of the type folding box or hinged lid.

Mit Hilfe des Beleimungssystems 10, insbesondere mit Hilfe von Leimventilen 11 des Beleimungssystems 10, werden Bereiche oder Abschnitte von Zuschnitten, aus denen die entsprechende Packung gebildet wird, mit aus den Leimventilen 11 gezielt austretenden Leimportionen versehen. Zu diesem Zweck werden die Zuschnitte unterhalb der Leimventile 11, nämlich unterhalb von schließbaren Leimventilöffnungen 12, an diesen vorbeigefördert. Einzelheiten hierzu sind in der DE 10 2008 027 259 beschrieben, auf die bereits weiter oben referenziert wurde.With the help of the gluing system 10, in particular with the aid of glue valves 11 of the gluing system 10, areas or sections of blanks from which the corresponding packing is formed are provided with glue portions selectively emerging from the glue valves 11. For this purpose, the blanks below the glue valves 11, namely below lockable glue valve openings 12, are conveyed past these. Details are in the DE 10 2008 027 259 described above, to which reference has already been made.

Das Beleimungssystem 10 muss derart betrieben bzw. gesteuert/geregelt werden, dass die einzelnen Leimportionen zu gewünschten Zeitpunkten, in gewünschten Größen bzw. Mengen und/oder in gewünschten Mustern auf dem Zuschnitt positioniert werden.The gluing system 10 must be operated in such a way that the individual glue portions are positioned on the blank at desired times, in desired quantities and / or in desired patterns.

Zur geeigneten Steuerung/Regelung des Beleimungssystems 10 verfügt dieses über einen Mastercontroller 13, an den mittels geeigneter Signal- oder Datenleitungen 14 einzelne nachgeordnete Controller 15 angeschlossen sind. Die Datenleitungen 14 sind jeweils Teil eines Bussystems, im vorliegenden Fall eines sogenannten CAN-Bussystems. Dieses Bussystem erlaubt eine bidirektionale Datenkommunikation zwischen dem Mastercontroller 13 und den einzelnen nachgeordneten Controllern 15. Die nachgeordneten Controller 15 sind über geeignete Stromleitungen 17 an eine Stromversorgung 16 angeschlossen.For suitable control of the gluing system 10, the latter has a master controller 13, to which individual downstream controllers 15 are connected by means of suitable signal or data lines 14. The data lines 14 are each part of a bus system, in the present case a so-called CAN bus system. This bus system allows bidirectional data communication between the master controller 13 and the individual downstream controllers 15. The downstream controllers 15 are connected to a power supply 16 via suitable power lines 17.

An einen der Steuerausgänge der nachgeordneten Controller 15 ist über eine Steuerleitung 18a ein Elektromagnet mit entsprechender Spulenansteuerung 19 angeschlossen. Der Elektromagnet befindet sich innerhalb des Leimventils 11 und dient dazu, ein Verschlussorgan zu bewegen, dass mindestens teilweise von dem Elektromagnet bzw. der Spule des Elektromagneten umgeben ist. Durch eine Rückstellkraft wird das Verschlussorgan im stromlosen Zustand des Elektromagneten in an sich bekannter Weise innerhalb eines Ventilsitzes gehalten.To one of the control outputs of the downstream controller 15 is connected via a control line 18 a, an electromagnet with corresponding coil drive 19. The electromagnet is located inside the glue valve 11 and serves to move a closing member which is at least partially surrounded by the electromagnet or coil of the electromagnet. By a restoring force, the closure member is held in the currentless state of the electromagnet in a conventional manner within a valve seat.

Das Beaufschlagen der Spule mit einem elektrischen Strom geeigneter Stärke bewirkt dann, dass das durch das Magnetfeld des Elektromagneten beinflussbare Verschlussorgan aus seiner Schließstellung gegen die Rückstellkraft nach oben bewegt wird. Die Ventilöffnung 12 wird hierdurch freigegeben, sodass aus dieser Leim austreten kann. Einzelheiten zu dem Aufbau eines derartigen Leimventils sind der DE 10 2008 027 259 zu entnehmen.Applying the coil with an electric current of suitable strength then causes the closing element which can be influenced by the magnetic field of the electromagnet to be moved upwards out of its closed position against the restoring force. The valve opening 12 is thereby released, so that can leak out of this glue. Details of the structure of such a glue valve are the DE 10 2008 027 259 refer to.

An einem weiteren Ausgang der nachgeordneten Controller 15 ist jeweils über eine Steuerleitung 18b ein Sensor zur Erfassung einer für den ordnungsgemäßen Betrieb der Leimventile 11 relevanten Messgröße angeordnet. Im vorliegenden Fall handelt es sich jeweils um einen, sich in das Ventilinnere hinein erstreckenden Temperatursensor 20. Mit diesem kann als Messgröße die Temperatur des im Betrieb innerhalb des Leimventils 11 befindlichen Leims erfasst werden.At a further output of the downstream controller 15, a sensor for detecting a relevant for the proper operation of the glue valves 11 measured value is arranged in each case via a control line 18b. In the present case, in each case one is a temperature sensor 20 extending into the valve interior. With this, the temperature of the glue located in operation within the glue valve 11 can be detected as a measured variable.

An einem weiteren Eingang der Controller 15 endet jeweils eine von einer Streckensteuerung 21 ausgehende Steuerleitung 22.At a further input of the controller 15 ends in each case one of a line controller 21 outgoing control line 22nd

Der Streckensteuerung 21 werden an einen ihrer Eingänge Signale eines Drehgebers 23 übertragen. Der Drehgeber 21 erfasst Drehungen der zentralen Maschinenachse einer nicht dargestellten, an sich bekannten Verpackungsmaschine zur Verpackung von Zigaretten.The distance control 21 are transmitted to one of its inputs signals of a rotary encoder 23. The rotary encoder 21 detects rotations of the central machine axis of a packaging machine, not shown, known per se for packaging cigarettes.

Zu diesem Zweck ist der Drehgeber 23 mittels einer Signalleitung 24 mit der Streckensteuerung 21 verbunden. Sowohl der Mastercontroller 13 als auch die Streckensteuerung 21 sind über entsprechende Signal- bzw. Datenleitungen 25, 26 mit der zentralen Maschinensteuerung 27 der Verpackungsmaschine verbunden. Dabei ist im vorliegenden Fall die Leitung 25, die den Mastercontroller 13 mit der Maschinensteuerung 27 verbindet, als Ethernet-Verbindung ausgebildet, über die bidirektional Daten ausgetauscht werden können. Die Signalleitung 26 zwischen der Streckensteuerung 21 und der Maschinensteuerung 27 ist im vorliegenden Fall ebenfalls bidirektional ausgebildet.For this purpose, the rotary encoder 23 is connected by means of a signal line 24 to the track controller 21. Both the master controller 13 and the track controller 21 are connected via corresponding signal or data lines 25, 26 to the central machine control 27 of the packaging machine. In this case, in the present case, the line 25, which connects the master controller 13 to the machine controller 27, formed as an Ethernet connection, via the bidirectional data can be exchanged. The signal line 26 between the path controller 21 and the machine controller 27 is also bidirectional in the present case.

Die Steuerung/Regelung des Beleimungssystems 10 erfolgt folgendermaßen:The control of the gluing system 10 is carried out as follows:

Die Streckensteuerung 21 greift über die Signal- bzw. Datenleitung 26 auf eine der Maschinensteuerung 27 zugeordnete Datenbank zu. In der Maschinensteuerung 27 bzw. der Datenbank sind abhängig von den verwendeten Zuschnitten bzw. von den zu produzierenden Packungstypen Leimpunktmuster hinterlegt. Die Streckensteuerung 21 sendet abhängig von dem ausgewählten Leimpunktmuster sowie abhängig von der mit dem Drehgeber 23 ermittelten Maschinendrehzahl entsprechende Steuerungssignale an die nachgeordneten Controller 15.The path controller 21 accesses the data transmission line 26 to a database associated with the machine control 27. In the machine control 27 or the database, depending on the blanks used or on the pack types to be produced, glue dot patterns are deposited. Depending on the selected glue dot pattern and depending on the engine rotational speed determined by the rotary encoder 23, the path controller 21 sends corresponding control signals to the downstream controller 15.

Den nachgeordneten Controllern 15 werden mit anderen Worten jeweils Zeitpunkte mitgeteilt oder vorgeben, zu denen die Leimventile 11 geöffnet werden müssen. Die Öffnung selbst erfolgt durch Beaufschlagen der jeweiligen Elektromagneten mit geeigneten elektrischen Strömen.In other words, the downstream controllers 15 are each notified or specify times at which the glue valves 11 have to be opened. The opening itself takes place by applying the appropriate electromagnets with suitable electrical currents.

Zu diesem Zweck verfügt jeder nachgeordnete Controller 15 über eine Verstärkereinheit, die die geringen, von der Streckensteuerung 21 stammenden Steuersignalströme ausreichend verstärkt, um mit Hilfe der Elektromagneten geeignete Öffnungsbewegungen der Verschlussorgane der Leimventile bewirken zu können.For this purpose, each subordinate controller 15 has an amplifier unit which sufficiently amplifies the small control signal currents originating from the line controller 21 in order to be able to effect suitable opening movements of the closure members of the glue valves with the aid of the electromagnets.

Die Stärke des Stroms, der während eines Öffnungszyklusses durch den Elektromagneten fließt, steuern die nachgeordneten Controller 15 anhand von Steuer/Regelparametern, die in den Controllern 15 bzw. in diesen zugeordneten Speichern oder Datenbanken hinterlegt sind. Diese Parameter können im Betrieb jeweils abhängig von den jeweils durch die Sensoren 20 gemessenen Leimtemperaturen angepasst werden.The magnitude of the current that flows through the electromagnet during an opening cycle is controlled by the downstream controllers 15 based on control parameters stored in the controllers 15 or in their associated memories or databases. These parameters can be adjusted in operation depending on the respective measured by the sensors 20 glue temperatures.

Bekanntlich ist die Viskosität von Leim temperaturabhängig. So kann der Leim in einem bestimmten Leimventil 11 bei einer von im Vergleich zu vorgegebenen Sollwerten abweichender, besonders hohen Temperatur eine so niedrige Viskosität aufweisen, dass eine Nachregelung des Leimventils 11 notwendig wird. Um diesen Fall zu erfassen, werden zunächst jeweils die Temperaturwerte, die der jeweilige Temperatursensor 20 misst, von dem jeweiligen Controller 15 an den Mastercontroller 13 übermittelt. Der Mastercontroller 13 wertet für jedes Leimventil 11 die gemessenen Temperaturen anhand vorgegebener Sollwerte oder anhand anderer Kriterien aus.As is known, the viscosity of glue is temperature-dependent. Thus, the glue in a particular glue valve 11 may have such a low viscosity at a particularly high temperature deviating from predetermined setpoints that a readjustment of the glue valve 11 becomes necessary. In order to detect this case, first of all the temperature values which the respective temperature sensor 20 measures are transmitted from the respective controller 15 to the master controller 13. Of the Master controller 13 evaluates the measured temperatures for each glue valve 11 on the basis of predetermined desired values or on the basis of other criteria.

Sollte die Auswertung ergeben, dass die Leimtemperatur zu hoch ist, muss das jeweilige Leimventil 11 entsprechend kürzere Zeit geöffnet bleiben, als dies bei einer niedrigeren Leimtemperatur der Fall ist, um insgesamt trotz der hohen Temperatur eine vorbestimmte Leimportionsgröße garantieren zu können.If the evaluation shows that the glue temperature is too high, the respective glue valve 11 must remain open for a correspondingly shorter time than is the case at a lower glue temperature in order to be able to guarantee a predetermined glue serving size in spite of the high temperature.

Entsprechend sendet der Mastercontroller 13 einen geeignet angepassten Steuer-/Regelparameter, der die anzupassende Öffnungsdauer des Leimventils repräsentiert, an den jeweiligen nachgeordneten Controller 15. Der zuvor für die Öffnungsdauer hinterlegte Wert in dem Controller 15 wird überschrieben. Der nachgeordnete Controller 15 passt entsprechend bei der Steuerung/Regelung des Leimventils 11 die Öffnungszeit desselben an.Correspondingly, the master controller 13 sends a suitably adapted control parameter, which represents the opening time of the glue valve to be adapted, to the respective downstream controller 15. The previously stored value for the opening duration in the controller 15 is overwritten. The downstream controller 15 accordingly adjusts the opening time of the same in the control of the glue valve 11.

In gleicher Weise wie die Öffnungsdauer des Leimventils kann abhängig von den gemessenen Temperaturwerten beispielsweise auch die Stärke des sogenannten Öffnungsstroms, der durch den Elektromagneten fließt, angepasst werden und/oder die Stärke des sogenannten Haltestroms. Dies hat folgenden Hintergrund:In the same way as the opening duration of the glue valve, depending on the measured temperature values, for example, also the strength of the so-called opening current flowing through the electromagnet can be adjusted and / or the strength of the so-called holding current. This has the following background:

Bei Öffnung des jeweiligen Leimventils 11 muss zunächst ein etwas höherer Öffnungsstrom durch die Spule des Elektromagneten fließen, um die Bewegung des Verschlussorgans nach oben entgegen der Rückstellkraft zu bewirken. Sobald das Verschlussorgan die geöffnete Endstellung erreicht hat, wird nur noch ein geringerer Haltestrom benötigt, um die Kraft aufzuwenden, das Verschlussorgan in der geöffneten Position festzuhalten. Die Werte für den Öffnungsstrom bzw. den Haltestrom sind in der vorliegenden Ausführungsform jeweils ebenfalls als Parameter in den nachgeordneten Controllern 15 hinterlegt und in der oben beschriebenen Weise durch den Mastercontroller 13 abhängig von der gemessenen Leimtemperatur dynamisch anpassbar.When opening the respective glue valve 11, a slightly higher opening current must first flow through the coil of the electromagnet in order to bring about the movement of the closure member upwards against the restoring force. Once the closure member has reached the open end position, only a smaller holding current is needed to use the force to hold the closure member in the open position. In the present embodiment, the values for the opening current or the holding current are also each stored as parameters in the downstream controllers 15 and dynamically adaptable in the manner described above by the master controller 13 as a function of the measured glue temperature.

Die zur Produktion eines bestimmten Packungstyps bzw. zur Beleimung der Zuschnitte dieses Packungstyps erforderlichen Parameter werden zu Produktionsbeginn über die Ethernet-Verbindung 25 von der zentralen Maschinensteuerung 27 an den Mastercontroller 13 übertragen. Die entsprechenden Parameter sind in geeigneten Datenbanken der Maschinensteuerung hinterlegt. In gleicher Weise sind dort die Leimpunktmuster hinterlegt, auf die die Streckensteuerung 21 zugreifen kann.The parameters required for the production of a particular package type or for gluing the blanks of this type of package are transmitted to the master controller 13 from the central machine controller 27 via the Ethernet connection 25 at the start of production. The corresponding parameters are stored in suitable databases of the machine control. In the same way, the glue dot patterns are stored there, which can be accessed by the pattern controller 21.

Der Mastercontroller 13 kann abhängig von den gemessenen Temperaturen die neuen, den nachgeordneten Controllern 15 jeweils zu übermittelnden Werte der Steuer-/Regelparameter entweder durch geeignete Algorithmen errechnen und/oder aus Datenbanken auswählen, in denen beispielsweise abhängig von den Leimtemperaturen die relevanten Steuer- und/oder Regelparameter hinterlegt sind.Depending on the measured temperatures, the master controller 13 can either calculate the new values of the control parameters to be transmitted to the downstream controllers 15 using suitable algorithms and / or select from databases in which, for example, the relevant control and / or or control parameters are stored.

Es wird darauf hingewiesen, dass natürlich jedes Leimventil 11 individuell und unabhängig von den anderen Leimventilen 11 gesteuert/geregelt werden kann.It should be noted that, of course, each glue valve 11 can be individually controlled independently of the other glue valves 11.

Eine weitere besondere Eigenschaft des erfindungsgemäßen Verfahrens bzw. des erfindungsgemäßen Beleimungssystems 10 wird im Zusammenhang mit der Fig. 3 erläutert. Die Leimventile 11, nämlich die darin verbauten Elektromagneten, weisen charakteristische Stromverlaufskurven 28a-28c auf. Der durch die Spule des Elektromagneten im Betrieb fließende Strom wird erfindungsgemäß als Kenngröße erfasst.Another special feature of the method according to the invention or of the gluing system 10 according to the invention is described in connection with FIG Fig. 3 explained. The glue valves 11, namely the electromagnets installed therein, have characteristic current flow curves 28a-28c. The current flowing through the coil of the electromagnet in operation current is detected according to the invention as a parameter.

Als Kurve 28a ist der Stromverlauf gezeigt, den ein für den Einsatz in dem bestimmten Beleimungssystem 10 geeignetes Leimventil aufweist.As a curve 28a, the current profile is shown, which has a suitable for use in the particular Beleimungssystem 10 glue valve.

Die Stromkurve 28b zeigt einen von der Stromkurve 28a abweichenden Verlauf eines Ventils, dessen Spezifikationen nicht zu dem Beleimungssystem 10 passen. In dem nicht passenden Leimventil kann z.B. ein Elektromagnet mit nicht passenden Spezifikationen verbaut sein.The current curve 28b shows a curve deviating from the current curve 28a of a valve whose specifications do not match the gluing system 10. In the non-matching glue valve, e.g. an electromagnet with mismatched specifications be installed.

Der Mastercontroller 13 vergleicht nun jeweils die Ist-Stromwerte bzw. -kurven der jeweiligen Leimventile mit hinterlegten Soll-Stromkurven. Bei Detektion von Abweichungen erkennt der Mastercontroller 13, dass ein nicht passendes Leimventil anderer Spezifikation verbaut ist.The master controller 13 now compares the actual current values or curves of the respective glue valves with stored desired current curves. Upon detection of deviations, the master controller 13 recognizes that a non-matching glue valve of a different specification is installed.

Die Stromkurve 28c repräsentiert den Stromverlauf eines zwar passenden, allerdings defekten Leimventils. Auch dies erkennt der Mastercontroller 13 durch entsprechenden Vergleich mit Soll-Verläufen.The current curve 28c represents the current profile of a matching but defective glue valve. This, too, is recognized by the master controller 13 by appropriate comparison with desired profiles.

Zusätzlich oder alternativ können die erfassten Stromverläufe auch anhand anderer vorgegebener Kriterien ausgewertet werden, um etwaige Fehler bzw. abweichende Spezifikationen zu erkennen.Additionally or alternatively, the detected current profiles can also be evaluated on the basis of other predetermined criteria in order to detect any errors or deviating specifications.

Je nach Ergebnis der Analyse der Stromverläufe initiiert der Mastercontroller 13 ein ein Leimventil-Fehler repräsentierendes Signal und/oder ein das Fehlen eines vorgegebenen Merkmals des analysierten Leimventils repräsentierendes Signal. In der Folge kann ein Bediener über ein akustisches, optisches oder sonstiges Signal hierüber informiert werden.Depending on the result of the analysis of the current profiles, the master controller 13 initiates a signal representing a glue valve error and / or a signal representing the absence of a predetermined feature of the analyzed glue valve. As a result, an operator can be informed of this via an acoustic, optical or other signal.

Denkbar ist auch, dass der Mastercontroller 13 abhängig von der Analyse der Stromverläufe einen bestimmten Steuer-/Regelparametersatz aus einer Datenbank auswählt und den abhängigen Controllern 15 übermittelt.It is also conceivable that the master controller 13, depending on the analysis of the current waveforms, selects a specific control / regulation parameter set from a database and transmits it to the dependent controllers 15.

Eine weitere Besonderheit der Erfindung ist der modulartige Aufbau des Beleimungssystems 10 bzw. der Steuer-/Regeleinheiten derselben. Wie in Fig. 2 gezeigt ist, sind die nachgeordneten Controller 15a-e als einzelne Module ausgebildet, die jeweils mit dem Mastercontroller 13 und/oder mit mindestens einem weiteren nachgeordneten Controller 15a-e über Kontaktverbindungsmittel, nämlich elektrisch leitende Kontaktzungen 29, verbunden sind.Another special feature of the invention is the modular design of the gluing system 10 or the control / regulating units of the same. As in Fig. 2 3, the downstream controllers 15a-e are designed as individual modules, which are each connected to the master controller 13 and / or to at least one further downstream controller 15a-e via contact connection means, namely electrically conductive contact tongues 29.

Der Mastercontroller 13 sowie jeder nachgeordnete Controller 15a-e weisen zu diesem Zweck auf ihren Vorder- und/oder Rückseiten ihrer jeweiligen Gehäuse jeweils eine entsprechende Kontaktzunge 29 auf. Die Kontaktzungen 29 sind dabei jeweils bezogen auf die einzelnen Controller 13, 15a-e an Enden von entsprechenden Signalleitungen bzw. Datenleitungen angebracht, die im Inneren der Gehäuse der Controller 13, 15a-e verlaufen.The master controller 13 and each downstream controller 15a-e have for this purpose on their front and / or rear sides of their respective housing in each case a corresponding contact tongue 29. In this case, the contact tongues 29 are each attached, relative to the individual controllers 13, 15a-e, to ends of corresponding signal lines or data lines which run inside the housing of the controllers 13, 15a-e.

Bei Aufbau des Beleimungssystems 10 wird zunächst an den Mastercontroller 13 ein erster nachgeordneter Controller 15a angeschlossen. Zu diesem Zweck werden der Masterkontroller 13 und der erste nachgeordnete Controller 15a zunächst aneinandergelegt und miteinander über nicht dargestellte Rastmittel in einer miteinander fluchtenden Stellung verrastet. In diesem verrasteten Zustand liegen eine elektrisch leitende Kontaktzunge 29 an der Hinterseite des Gehäuses des Mastercontrollers 13 und die entsprechend positionierte Kontaktzunge 29 des ersten nachgeordneten Controllers 15a an dessen Vorderseite kontaktend aneinander an. Über die beiden Kontaktzungen 29 an den jeweiligen Gehäuseseiten der Controller 13, 15a ist somit eine leitende Verbindung 14 zwischen den Controllern 13, 15a hergestellt.When constructing the gluing system 10, a first subordinate controller 15a is first connected to the master controller 13. For this purpose, the master controller 13 and the first subordinate controller 15a are first placed against each other and locked together by not shown locking means in a mutually aligned position. In this latched state, an electrically conductive contact tongue 29 on the rear side of the housing of the master controller 13 and the correspondingly positioned contact tongue 29 of the first downstream controller 15 a contact against each other at the front thereof. Via the two contact tongues 29 on the respective sides of the housing of the controllers 13, 15a, a conductive connection 14 is thus established between the controllers 13, 15a.

Der zweite in das System 10 integrierte Controller 15b liegt mit der Vorderseite seines Gehäuses wiederum an der Rückseite des bereits an dem Mastercontroller 13 anliegenden bzw. mit diesem verbundenen, ersten nachgeordneten Controllers 15a an. In der oben beschriebenen Weise sind dabei wiederum deren entsprechende Kontaktzungen 29 miteinander verbunden bzw. diese liegen kontaktend aneinander an.The second controller 15b, which is integrated into the system 10, in turn rests against the front of its housing on the rear side of the first downstream controller 15a already connected to the master controller 13 or connected thereto. In the manner described above, in turn, their corresponding contact tongues 29 are connected to one another or these are in contact with each other.

Weitere nachgeordnete Controller 15c-15e werden dem System 10 in analoger Weise hinzugefügt.Additional downstream controllers 15c-15e are added to the system 10 in an analogous manner.

Die Leitungen in den Controllern 13, 15a-e sind derart ausgestaltet und miteinander verbunden, dass sie insgesamt ein Bussystem bilden, nämlich einen sogenannten CAN-Bus.The lines in the controllers 13, 15a-e are configured and interconnected in such a way that they form a total of a bus system, namely a so-called CAN bus.

Jeder Controller 15a-e steuert genau ein Leimventil 11. Vorteilhafterweise kann daher das Beleimungssystem 10 in einfacher Weise erweitert werden. Sollte dem Beleimungssystem 10 ein weiteres Leimventil 11 hinzugefügt werden müssen, so wird in der vorbeschriebenen Weise ein weiteres Controllermodul 15 mit dem äußersten nachgeordneten Controller 15e der Fig. 2 verbunden.Each controller 15a-e controls precisely one glue valve 11. Advantageously, therefore, the gluing system 10 can be easily expanded. If the glueing system 10, a further glue valve 11 must be added, so in the manner described above, another controller module 15 with the outermost downstream controller 15e of Fig. 2 connected.

Claims (11)

  1. A method for operating a gluing system (10) for gluing blanks for producing and/or packaging cigarettes or other smokable objects, in which the blanks are conveyed along glue valves (11) of the gluing system (10), wherein, in order to control and/or regulate the glue valves (11), a superordinate master controller (13) respectively transmits values of at least one control and/or regulation parameter to individual controllers (15) which are assigned to the glue valves (11), are subordinate to the master controller (13) and are each connected to the superordinate master controller (13) via a suitable data connection, the subordinate controller (15) using said values to control and/or regulate the glue valve (11) assigned to it, characterized in that, for one glue valve (11), for a plurality of glue valves or for each glue valve, the values of at least one characteristic variable of the glue valves (11) respectively integrated in the gluing system (10) are recorded, namely of the electric current, which flows through the coil of the electromagnet of the glue valve (11) in the event of movements of the closure element of the respective glue valve (11) which have been caused by an electromagnet, with the type of the corresponding glue valve (11) and/or fault states of the latter being detected and/or determined using the values of the at least one characteristic variable.
  2. The method as claimed in claim 1, characterized in that sensors (20) respectively connected to the subordinate controllers (15) record measured values of at least one measurement variable, in that the subordinate controllers (15) respectively transmit these measured values to the master controller (13), and in that the master controller (13) determines the control and/or regulation parameter values for the relevant glue valve (11) on the basis of these measured values and/or selects said parameter values from a database assigned to the master controller and then transmits said parameter values to the respective subordinate controller (15).
  3. The method as claimed in one or more of the preceding claims, characterized in that the control and/or regulation parameters provided are the intensity and/or the duration of the electrical current applied to an electromagnet of the respective glue valve (11), which electromagnet moves a closure element of the respective glue valve (11), in particular from a closing position to an opening position, during operation of the gluing system (10).
  4. The method as claimed in one or more of the preceding claims, characterized in that the master controller (13) determines a set of corresponding control and/or regulation parameters on the basis of the value(s) of the characteristic variable and/or selects said set of parameters from a data memory assigned to the master controller and transmits said set of parameters to the respective subordinate controller (15).
  5. The method as claimed in one or more of the preceding claims, characterized in that the value(s) of the characteristic variable is/are analyzed using predefined criteria, in particular using stored desired values of the characteristic variable, in order to determine whether the corresponding glue valve (11) is faulty and/or has predefined features, a signal representing a glue valve fault and/or a signal representing the absence of the predefined feature being transmitted to a signal display means, in particular to a screen, on the basis of the result.
  6. A gluing system for gluing blanks for producing and/or packaging cigarettes or other smokable objects, in particular for carrying out the method as claimed in claim 1, having a plurality of glue valves (11) along which the blanks are conveyable using a conveyor, characterized in that, in order to control and/or regulate the glue valves (11), the gluing system (10) comprises a superordinate master controller (13) and controllers (15) which are respectively assigned to each glue valve (11), are subordinate to the master controller (13) and are each connected to the superordinate master controller (13) via a data connection, in particular via a data bus system, values of at least one control and/or regulation parameter being transmittable to the subordinate controllers (15) from the master controller (13) via the data connection, the respective subordinate controller (15) being able to use said values to control or regulate the glue valve (11) assigned to it, and in that the gluing system (10) has a detection device which can be used to respectively record the values of at least one characteristic variable of the glue valves (11) respectively integrated in the gluing system (10), namely of the electric current, which flows through the coil of an electromagnet of the glue valve (11), which electromagnet can be used to move a closure element of the glue valve (11), wherein the detection device can be used to detect and/or determine the type of glue valve (11) and/or fault states of the latter using the values of the at least one characteristic variable.
  7. The gluing system as claimed in claim 6, characterized in that at least one sensor (20) for detecting a measurement variable is respectively connectable to the subordinate controllers (15), the respective glue valve (11) being controllable/regulatable on the basis of the values of the measurement variable, preferably a sensor for detecting the glue temperature or the glue pressure or the glue viscosity, and/or that the recorded measured values are transmittable to the master controller (13) which can be used to determine the values of the at least one control/regulation parameter on the basis of the measured values.
  8. The gluing system as claimed in one or more of the preceding claims 6 - 7, characterized in that the subordinate controllers (15) are each in the form of individual modules which are each connectable to the master controller (13) and/or to at least one further subordinate controller (15) via suitable contact-connection means, in particular via contact plugs and/or contact tongues.
  9. The gluing system as claimed in one or more of the preceding claims 6 - 8, characterized in that, when a further glue valve (11) is integrated in the gluing system (10), the gluing system (10) is accordingly expandable by a further subordinate controller (15) for controlling/regulating the added glue valve (11), in particular by virtue of the added subordinate controller (15) being connectable to another subordinate controller (15) already integrated in the system and/or to the master controller (13) via corresponding contact-connection means (29).
  10. The gluing system as claimed in one or more of the preceding claims 6 - 9, characterized in that the detection device is part of the master controller (13).
  11. The gluing system as claimed in one or more of the preceding claims 8 - 10, characterized in that the master controller (13) can determine a set of control and/or regulation parameters on the basis of the respective values of the characteristic variable and/or can select said set of parameters from a memory assigned to the master controller (13).
EP10722619.3A 2009-06-18 2010-05-26 Method for operating a gluing system Active EP2442970B1 (en)

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DE102009029821A DE102009029821A1 (en) 2009-06-18 2009-06-18 Method for operating a gluing system
PCT/EP2010/003185 WO2010145748A1 (en) 2009-06-18 2010-05-26 Method for operating a gluing system

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US20090084773A1 (en) 2007-09-28 2009-04-02 Heerdt Dieter B Information communication systems between components of a hot melt adhesive material dispensing system
DE102007063479A1 (en) 2007-12-20 2008-11-20 Siemens Ag Method for producing signal, involves displaying armature of electromagnets, which attain end position and current is measured continuously which is flowing by electromagnets

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2724783B1 (en) 2012-10-25 2018-01-17 Nordson Corporation Dispensing systems and methods for monitoring actuation signals for diagnostics

Also Published As

Publication number Publication date
EP2442970A1 (en) 2012-04-25
US8948898B2 (en) 2015-02-03
US20120095588A1 (en) 2012-04-19
CN102802930A (en) 2012-11-28
ES2567459T3 (en) 2016-04-22
DE102009029821A1 (en) 2010-12-23
WO2010145748A1 (en) 2010-12-23
CN102802930B (en) 2015-03-11

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