EP2252408A1 - A device and a method for spreading glue or adhesive on workpieces in a desired format - Google Patents

A device and a method for spreading glue or adhesive on workpieces in a desired format

Info

Publication number
EP2252408A1
EP2252408A1 EP09717466A EP09717466A EP2252408A1 EP 2252408 A1 EP2252408 A1 EP 2252408A1 EP 09717466 A EP09717466 A EP 09717466A EP 09717466 A EP09717466 A EP 09717466A EP 2252408 A1 EP2252408 A1 EP 2252408A1
Authority
EP
European Patent Office
Prior art keywords
glue
amount
adhesive
control device
housing
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
EP09717466A
Other languages
German (de)
French (fr)
Other versions
EP2252408B1 (en
Inventor
Guido Tillmann
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
Application filed by Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Publication of EP2252408A1 publication Critical patent/EP2252408A1/en
Application granted granted Critical
Publication of EP2252408B1 publication Critical patent/EP2252408B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
    • B05C1/0834—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets the coating roller co-operating with other rollers, e.g. dosing, transfer rollers
    • 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
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0873—Controlling means responsive to conditions of the liquid or other fluent material, of the ambient medium, of the roller or of the work
    • B05C1/0882—Controlling means responsive to conditions of the liquid or other fluent material, of the ambient medium, of the roller or of the work responsive to the distance between two rollers, e.g. between the coating roller and a backing roller
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H25/00—After-treatment of paper not provided for in groups D21H17/00 - D21H23/00
    • D21H25/08—Rearranging applied substances, e.g. metering, smoothing; Removing excess material
    • D21H25/12—Rearranging applied substances, e.g. metering, smoothing; Removing excess material with an essentially cylindrical body, e.g. roll or rod
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H5/00—Special paper or cardboard not otherwise provided for
    • D21H5/0005—Processes or apparatus specially adapted for applying liquids or other fluent materials to finished paper or board, e.g. impregnating, coating
    • D21H5/006—Controlling or regulating
    • D21H5/0062—Regulating the amount or the distribution, e.g. smoothing, of essentially fluent material already applied to the paper; Recirculating excess coating material applied to paper
    • D21H5/0067—Regulating the amount or the distribution, e.g. smoothing, of essentially fluent material already applied to the paper; Recirculating excess coating material applied to paper with an essentially cylindrical body, e.g. roll or rod
    • 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

Definitions

  • the invention relates to a glue application station for applying glue or adhesive to workpieces according to the preamble of claim 1 and to a method according to the preamble of claim 9.
  • An applicator roller transfers glue from the glue housing to the plate of a plate roller, wherein a metering roller placed against the applicator roller limits the amount of glue that can be removed. From the cliché, the glue or adhesive is applied in a format-appropriate manner to a workpiece to be glued by this between the cliché and a pressure roller is guided.
  • the radial position of the applicator roll is adjusted to the plate roller via suitable spindles.
  • a further spindle is provided, via which the radial position of the pressure roller is adjustable to the plate roller.
  • the patent application DE 196 34 594 A1 shows a glue application, in which the glue application amount on the workpiece - in the Bodenleimung a paper bag - can be controlled via the radial position of the rollers involved in Glue each other. This radial position of the gluing rollers is manually adjustable via spindles.
  • the object of the present invention is therefore to propose a glue application station and a method for operating the same, which reduces the disadvantages of the prior art.
  • a spacing device for the rollers in the glue application station which can be moved or adjusted by means of motors.
  • the adjustment of the radial position of the rollers in the glue application station can take place more quickly, so that less waste is produced.
  • the spacing device with a position sensor, which can measure the current radial position of the rollers, so that based on the current radial position of the rollers in the glue application station, a glue change on the workpiece to be bonded can be done more accurately.
  • the current position of the spacing device can be monitored by means of a position transmitter.
  • a position transmitter can be configured, for example, as a rotary encoder or as a photo sensor.
  • the current position value can be transmitted to a control device via a suitable signal line and stored in this.
  • glue or adhesive is supplied to a glue housing, so that the glue level in the glue housing is kept constant.
  • the amount of glue present in the glue housing is sent to a control device via a suitable glue level measuring device.
  • the glue level measuring device can for example consist of a weighing device (with known glue density) and / or a so-called "float" whose position can be detected by a button.
  • the feed line comprises a flow rate meter, so that the amount of glue flowed through the feed line per unit time can be recorded or measured. It is also advantageous if these data are supplied to a control device via a suitable data line.
  • the amount of glue that is applied to the workpieces to be glued is determined by the radial position of the application, metering and cliché roller to each other.
  • the radial position of the rollers - in the glue application station - can be adjusted via a spacer.
  • the spacing device can be, for example, a spindle.
  • Control device suitable software that can calculate the amount of glue applied to a single workpiece using appropriate data. These data include the amount of glue flowed through the supply line per unit time, the number of glued bags per unit time and the
  • Control device sent via suitable data lines and processed there.
  • the amount of glue calculated per workpiece is stored as the actual amount of glue in the control device.
  • a characteristic can be stored, in which the amount of glue is plotted against the spindle positions.
  • a spindle position can be assigned a specific glue application quantity.
  • a job change is simplified by automatically moving in a known adhesive format on the control device to the desired spindle position.
  • the target amount of glue is the one in which the workpieces are glued together in a good quality ("dense” and "durable”).
  • the target amount of glue is constantly compared by the control device with the actual amount of glue, and at a occurring
  • the control device Since a certain amount of glue applied to the workpiece can be assigned in the control device of a specific spindle position, it is advantageous for the control device to record and store changes (due to production parameters such as heat, temperature, etc.) from this particular spindle position , Thus, regulations on the spindle position of the rollers of the glue application station can be calculated in advance by the control device and targeted intervened in advance.
  • the glue application can be pre-set targeted to a workpiece and controlled while the machine is running on the control device, so that no unnecessary machine downtime caused.
  • FIG. 1 shows a prior art glue application station 10 for size-sensitive gluing of workpieces 7.
  • the glue housing 5 glue or adhesive 6 is supplied via a glue supply 11 such that the glue level in the glue housing 5 is kept constant.
  • level indicator not shown, may be provided.
  • the current glue level is the control device 9 via a suitable glue supply 11
  • the applicator roll 1 removes a quantity of glue from the glue housing. About the radial position of the applicator roller 1 to the metering roller 2 and plate roller 3, the amount of glue is given, which is transmitted from the cliché of the plate roller to the workpiece 7.
  • the application roller 1 and metering roller 2 rotate in
  • Adhesive 6 is transferred from the cliché roller 3 on the workpiece 7, this 7 between the cliché 3 and pressure roller 4 is performed.
  • Position of the pressure roller 4 to the plate roller 3 is also adjustable via a suitable spacing device (for example, a spindle).
  • a suitable spacing device for example, a spindle
  • FIG. 2 shows a preferred embodiment of the glue application station 10 according to the invention.
  • the same components bear the same reference numerals.
  • the supply lines 11 for the glue housing 5 comprise a flow rate meter 8, which determines the amount of glue flowed through the lines 11 per time unit.
  • the amount of glue in the glue housing is kept at a constant level.
  • the amount of glue flowing through per unit of time is sent to the control device 9 and stored there.
  • the radial position of the rollers is adjustable via spindles, not shown in the figures, along the arrows 12, 13.
  • the spindles are driven by suitable motors and the position is sent via suitable position sensor of the control device 9 and stored in the same 9.
  • the cliché roller 3 transfers the glue or adhesive 6 onto the workpiece 7, which is guided by the pressure roller 4 at the same time.
  • the radial position of the pressure roller is adjustable according to the arrow 11, so that the contact pressure of the plate on the workpiece can be adjusted.
  • the radial position of the pressure roller 4 is sent to the control device and stored in this.
  • the data stored in the control device (glue amount per unit time, spindle positions 11, 12, 13) are evaluated by a suitable software and determines the amount of glue that has come to a single workpiece.
  • This amount of glue is compared as an actual value (actual amount of glue) by the control device 9 with a desired value (SoII glue amount) stored in the same 9.
  • SoII glue amount desired value
  • the glue application amount is re-controlled by the control device 9 via the spindle position 11, 12, 13. This ensures that the workpiece is provided with an optimum amount of glue.
  • the control device checks (calculates) at regular intervals the current actual value of the amount of glue applied to the workpiece. In a closed loop, the amount of glue is constantly readjusted, so that the glued workpieces have a consistent quality.

Landscapes

  • Coating Apparatus (AREA)
  • Making Paper Articles (AREA)

Abstract

The invention relates to a glue spreading station (10) for spreading glue or adhesive (6) on workpieces in a desired format during the production of bags. The glue spreading station (10) contains a glue housing (5) which accommodates the glue or adhesive (6), an application roller (1) which is used to withdraw glue or adhesive (6) from the glue housing and to spread on the plate of the plate cylinder (3), said plate transferring the glue onto the workpiece (7) in the desired format. At least one metering roller (2) can be used to influence the amount of glue withdrawn by the application roller (1) from the glue housing. A counter-pressure cylinder (4) guides the workpiece during glue transfer of the plate cylinder (3). The glue spreading station further comprises spacer elements, for example spindles, which can be used to adjust the radial relative positions of the above rollers (1, 2, 3, 4) to control the glue spreading quantity. The spacer element can be driven by motors.

Description

Eine Vorrichtung und ein Verfahren zum formatmäßigen Auftragen von Leim bzw. Klebstoff auf Werkstücke An apparatus and method for the format application of glue to workpieces
Die Erfindung betrifft eine Leimauftragsstation zum Auftragen von Leim bzw. Klebstoff auf Werkstücke nach dem Oberbegriff des Anspruchs 1 und ein Verfahren nach dem Oberbegriff des Anspruchs 9.The invention relates to a glue application station for applying glue or adhesive to workpieces according to the preamble of claim 1 and to a method according to the preamble of claim 9.
Bei der Produktion von Säcken ist es notwendig, aufgrund unterschiedlicher Materialien die zu verklebenden Werkstücke mit einer exakt dosierten Leimmenge zu beaufschlagen. Insbesondere bei der Bodenleimung von Papiersäcken kann eine zu geringe Leimmenge eine Undichtigkeit desselben hervorrufen. Ist die aufgetragene Leimmenge jedoch zu groß, verlängert sich dadurch die Trocknungszeit der frisch verleimten Sackbestandteile, so dass diese nicht sofort mit Füllgut befüllt werden können.In the production of bags, it is necessary to apply a precisely metered amount of glue to the workpieces to be bonded due to different materials. In particular, in the floor sizing of paper bags too small amount of glue can cause a leak of the same. However, if the amount of glue applied is too large, the drying time of the freshly glued sack components is thereby extended, so that they can not be filled with contents immediately.
Eine Auftragwalze überträgt aus dem Leimgehäuse Leim auf das Klischee einer Klischeewalze, wobei eine gegen die Auftragwalze gestellte Dosierwalze die entnehmbare Leimmenge begrenzt. Vom Klischee wird der Leim bzw. Klebstoff formatgerecht auf ein zu beleimendes Werkstück aufgetragen, indem dieses zwischen dem Klischee und einer Andrückwalze geführt wird.An applicator roller transfers glue from the glue housing to the plate of a plate roller, wherein a metering roller placed against the applicator roller limits the amount of glue that can be removed. From the cliché, the glue or adhesive is applied in a format-appropriate manner to a workpiece to be glued by this between the cliché and a pressure roller is guided.
Zur Dosierung der Leimmenge, die aus dem Leimgehäuse entnommen wird, wird die radiale Position der Auftragswalze zur Klischeewalze über geeignete Spindeln eingestellt.To dose the amount of glue that is removed from the glue housing, the radial position of the applicator roll is adjusted to the plate roller via suitable spindles.
Außerdem ist eine weitere Spindel vorgesehen, über welche die radiale Position der Andrückwalze zur Klischeewalze einstellbar ist. Die Patentanmeldung DE 196 34 594 A1 zeigt eine Leimauftragsstation, bei der die Leimauftragsmenge auf dem Werkstück - bei der Bodenleimung eines Papiersacks - über die radiale Position der im Leimwerk beteiligten Walzen zueinander gesteuert werden kann. Diese radiale Position der Leimwerkwalzen ist über Spindeln händisch einstellbar.In addition, a further spindle is provided, via which the radial position of the pressure roller is adjustable to the plate roller. The patent application DE 196 34 594 A1 shows a glue application, in which the glue application amount on the workpiece - in the Bodenleimung a paper bag - can be controlled via the radial position of the rollers involved in Glue each other. This radial position of the gluing rollers is manually adjustable via spindles.
Als nachteilig erweist sich allerdings, dass bei einem Format- oder Materialwechsel (Papier) die radiale Position der Walzen neu einjustiert werden muss. Außerdem verändert sich diese radiale Position der Walzen während des Maschinenbetriebs durch Maschinenverschleiß (beispielsweise des Klischees) sowie Vibrationen oder Wärmeausdehnung aller in der Leimauftragsstation beteiligten Komponenten, so dass die radiale Position der Walzen immer wieder nachgeregelt werden muss, damit die bereits oben beschriebenen Nachteile (zu feuchte oder zu schwache Klebung) nicht zu stark zur Geltung kommen. Aber auch dynamische Effekte des Leimfluids (Variation der Maschinengeschwindigkeit) können Änderungen an der Spindelposition erforderlich machen. Eine händische Nachjustierung der radialen Position der Walzen zueinander ist zu langsam und verursacht im laufenden Betrieb zu viel Makulatur.A disadvantage, however, proves that in a format or material change (paper), the radial position of the rollers must be readjusted. In addition, this radial position of the rollers during machine operation by machine wear (for example, the cliché) and vibration or thermal expansion of all components involved in the glue application station changed so that the radial position of the rollers must be readjusted again and again, so that the disadvantages described above ( damp or too weak adhesion) do not come too strong. But also dynamic effects of the glue fluid (variation of the machine speed) may require changes in the spindle position. A manual readjustment of the radial position of the rollers to each other is too slow and causes too much waste during operation.
Die Aufgabe der vorliegenden Erfindung ist es daher, eine Leimauftragsstation und ein Verfahren zum Betreiben derselben vorzuschlagen, welches die Nachteile des Standes der Technik verringert.The object of the present invention is therefore to propose a glue application station and a method for operating the same, which reduces the disadvantages of the prior art.
Erfindungsgemäß wird diese Aufgabe durch die Merkmale des kennzeichnenden Teils der Ansprüche 1 und 9 gelöst.According to the invention this object is solved by the features of the characterizing part of claims 1 and 9.
Demnach ist vorgesehen, eine Beabstandungsvorrichtung für die Walzen in der Leimauftragsstation vorzusehen, die über Motoren verfahren bzw. eingestellt werden kann. Dadurch kann die Einstellung der radialen Position der Walzen in der Leimauftragsstation schneller erfolgen, so dass weniger Makulatur entsteht. Außerdem ist vorgesehen, die Beabstandungsvorrichtung mit einem Positionsgeber zu versehen, welcher die aktuelle radiale Position der Walzen messen kann, so dass anhand der aktuellen radialen Position der Walzen in der Leimauftragsstation eine Leimmengenänderung auf dem zu beklebenden Werkstück genauer erfolgen kann.Accordingly, it is provided to provide a spacing device for the rollers in the glue application station, which can be moved or adjusted by means of motors. As a result, the adjustment of the radial position of the rollers in the glue application station can take place more quickly, so that less waste is produced. It is also provided to provide the spacing device with a position sensor, which can measure the current radial position of the rollers, so that based on the current radial position of the rollers in the glue application station, a glue change on the workpiece to be bonded can be done more accurately.
Es ist vorteilhaft, wenn die aktuelle Position der Beabstandungsvorrichtung (hier Spindeln) mittels eines Positionsgebers überwachbar ist. Auf diese Weise sind die Position der Beabstandungsvorrichtung (Spindel) und damit der radiale Abstand der Walzen sehr genau bestimmbar. Ein solcher Positionsgeber kann beispielsweise als Drehgeber oder als Fototaster ausgestaltet sein. Der aktuelle Positionswert kann an eine Steuervorrichtung über eine geeignete Signalleitung übertragen und in dieser gespeichert werden.It is advantageous if the current position of the spacing device (here spindles) can be monitored by means of a position transmitter. In this way, the position of the spacing device (spindle) and thus the radial distance of the rollers can be determined very accurately. Such a position sensor can be configured, for example, as a rotary encoder or as a photo sensor. The current position value can be transmitted to a control device via a suitable signal line and stored in this.
Über eine Zuführleitung wird einem Leimgehäuse Leim bzw. Klebstoff zugeführt, so dass der Leimfüllstand im Leimgehäuse konstant gehalten wird.Via a supply line glue or adhesive is supplied to a glue housing, so that the glue level in the glue housing is kept constant.
Die im Leimgehäuse vorhandene Leimmenge wird über ein geeignetes Leimfüllstandsmessgerät an eine Steuervorrichtung gesendet. Das Leimfüllstandsmessgerät kann beispielsweise aus einer Wägeeinrichtung (bei bekannter Leimdichte) und/oder einem so genannten „Schwimmer" bestehen, dessen Position von einem Taster erfasst werden kann.The amount of glue present in the glue housing is sent to a control device via a suitable glue level measuring device. The glue level measuring device can for example consist of a weighing device (with known glue density) and / or a so-called "float" whose position can be detected by a button.
In einer bevorzugten Ausgestaltung der Erfindung umfasst die Zuführleitung ein Durchflussmengenmessgerät, so dass die pro Zeiteinheit durch die Zuführleitung geflossene Leimmenge aufzeichenbar bzw. messbar ist. Vorteilhaft ist ebenfalls, wenn diese Daten einer Steuervorrichtung über eine geeignete Datenleitung zugeführt werden.In a preferred embodiment of the invention, the feed line comprises a flow rate meter, so that the amount of glue flowed through the feed line per unit time can be recorded or measured. It is also advantageous if these data are supplied to a control device via a suitable data line.
Die Menge Leim, die auf die zu beleimenden Werkstücke aufgetragen wird, wird über die radiale Position der Auftrags-, Dosier- und Klischeewalze zueinander bestimmt. Die radiale Position der Walzen - in der Leimauftragsstation - kann über eine Beabstandungsvorrichtung eingestellt werden. Die Beabstandungsvorrichtung kann beispielsweise eine Spindel sein. In einer besonders bevorzugten Ausgestaltung der Erfindung umfasst dieThe amount of glue that is applied to the workpieces to be glued is determined by the radial position of the application, metering and cliché roller to each other. The radial position of the rollers - in the glue application station - can be adjusted via a spacer. The spacing device can be, for example, a spindle. In a particularly preferred embodiment of the invention, the
Steuervorrichtung eine geeignete Software, die mithilfe geeigneter Daten die auf ein einzelnes Werkstück aufgetragene Leimmenge berechnen kann. Zu diesen Daten gehören die durch die Zuführleitung durchgeflossene Leimmenge pro Zeiteinheit, die Anzahl der beleimten Säcke pro Zeiteinheit und derControl device suitable software that can calculate the amount of glue applied to a single workpiece using appropriate data. These data include the amount of glue flowed through the supply line per unit time, the number of glued bags per unit time and the
Leimfüllstand des Leimgehäuses. Alle (oben erwähnten) Daten werden an dieGlue level of the glue housing. All data (mentioned above) will be sent to the
Steuervorrichtung über geeignete Datenleitungen gesendet und dort verarbeitet. Die daraus berechnete Leimmenge pro Werkstück wird als Ist- Leimmenge in der Steuervorrichtung gespeichert.Control device sent via suitable data lines and processed there. The amount of glue calculated per workpiece is stored as the actual amount of glue in the control device.
In der Steuervorrichtung kann eine Kennlinie gespeichert sein, bei der die Leimmenge gegen die Spindelpositionen aufgetragen ist. So kann einer Spindelposition eine bestimmte Leimauftragsmenge zugeordnet werden. Dadurch wird ein Auftragswechsel vereinfacht, indem bei einem bekannten Klebeformat automatisch über die Steuervorrichtung auf die gewünschte Spindelposition gefahren werden kann.In the control device, a characteristic can be stored, in which the amount of glue is plotted against the spindle positions. Thus, a spindle position can be assigned a specific glue application quantity. As a result, a job change is simplified by automatically moving in a known adhesive format on the control device to the desired spindle position.
Es ist auch vorteilhaft, wenn in der Steuervorrichtung eine Soll-Leimmenge für jedes zu beleimende Werkstückformat gespeichert ist. Die Soll-Leimmenge ist diejenige, bei der die Werkstücke in einer guten Qualität („dicht" und „haltbar") miteinander verleimt sind. Die Soll-Leimmenge wird von der Steuervorrichtung ständig mit der Ist-Leimmenge verglichen, und bei einer auftretendenIt is also advantageous if a desired amount of glue is stored in the control device for each workpiece format to be glued. The target amount of glue is the one in which the workpieces are glued together in a good quality ("dense" and "durable"). The target amount of glue is constantly compared by the control device with the actual amount of glue, and at a occurring
Abweichung wird die Leimauftragsmenge über die Spindelposition von der Steuervorrichtung korrigiert.Deviation, the glue application amount over the spindle position is corrected by the control device.
Da in der Steuervorrichtung einer bestimmten Spindelposition eine bestimmte Leimmenge, die auf das Werkstück aufgetragen wird, zugeordnet werden kann, ist es vorteilhaft, dass die Steuervorrichtung Änderungen bzw. Abweichungen (durch Produktionsparameter wie Wärme, Temperatur etc.) von dieser bestimmten Spindelposition aufzeichnet und speichert. So können Regelungen an der Spindelposition der Walzen der Leimauftragsstation von der Steuervorrichtung vorher berechnet und gezielt vorab eingegriffen werden. So kann der Leimauftrag auf ein Werkstück gezielt voreingestellt und bei laufender Maschine über die Steuervorrichtung geregelt werden, so dass keine unnötigen Maschinenstillstände verursacht werden.Since a certain amount of glue applied to the workpiece can be assigned in the control device of a specific spindle position, it is advantageous for the control device to record and store changes (due to production parameters such as heat, temperature, etc.) from this particular spindle position , Thus, regulations on the spindle position of the rollers of the glue application station can be calculated in advance by the control device and targeted intervened in advance. Thus, the glue application can be pre-set targeted to a workpiece and controlled while the machine is running on the control device, so that no unnecessary machine downtime caused.
Weitere Ausführungsbeispiele der Erfindung gehen aus der gegenständlichen Beschreibung und den Ansprüchen hervor.Further embodiments of the invention will become apparent from the description and the claims.
Die einzelnen Figuren zeigen:The individual figures show:
Fig. 1 Leimauftragsstation des Standes der Technik Fig. 2 LeimauftragsstationFig. 1 glue application station of the prior art Fig. 2 glue application station
Figur 1 zeigt eine Leimauftragsstation 10 des Standes der Technik zur formatmäßigen Beleimung von Werkstücken 7.FIG. 1 shows a prior art glue application station 10 for size-sensitive gluing of workpieces 7.
Dem Leimgehäuse 5 wird Leim bzw. Klebstoff 6 über eine Leimzuführleitung 11 derart zugeführt, dass der Leimfüllstand im Leimgehäuse 5 konstant gehalten wird. Dafür können nicht dargestellte Füllstandsgeber vorgesehen sein. Der aktuelle Leimfüllstand wird der Steuervorrichtung 9 über eine geeigneteThe glue housing 5 glue or adhesive 6 is supplied via a glue supply 11 such that the glue level in the glue housing 5 is kept constant. For this purpose, level indicator, not shown, may be provided. The current glue level is the control device 9 via a suitable
Datenleitung zugesendet und dort gespeichert. Die Auftragswalze 1 entnimmt eine Leimmenge aus dem Leimgehäuse. Über die radiale Position der Auftragswalze 1 zur Dosierwalze 2 und Klischeewalze 3 wird die Leimmenge vorgegeben, die von dem Klischee der Klischeewalze auf das Werkstück 7 übertragen wird. Die Auftragswalze 1 und Dosierwalze 2 drehen sich imData line sent and stored there. The applicator roll 1 removes a quantity of glue from the glue housing. About the radial position of the applicator roller 1 to the metering roller 2 and plate roller 3, the amount of glue is given, which is transmitted from the cliché of the plate roller to the workpiece 7. The application roller 1 and metering roller 2 rotate in
Uhrzeigersinn entgegengesetzt der Klischeewalze 3. Während der Leim bzw.Clockwise opposite the cliché roller 3. While the glue or
Klebstoff 6 von der Klischeewalze 3 auf das Werkstück 7 übertragen wird, wird dieses 7 zwischen der Klischee- 3 und Andrückwalze 4 geführt. Die radialeAdhesive 6 is transferred from the cliché roller 3 on the workpiece 7, this 7 between the cliché 3 and pressure roller 4 is performed. The radial
Position der Andrückwalze 4 zur Klischeewalze 3 ist ebenfalls über eine geeignete Beabstandungsvorrichtung (beispielsweise eine Spindel) einstellbar.Position of the pressure roller 4 to the plate roller 3 is also adjustable via a suitable spacing device (for example, a spindle).
Die Figur 2 zeigt eine bevorzugte Ausführungsform der erfindungsgemäßen Leimauftragsstation 10. Gleiche Bauteile tragen dieselben Bezugszeichen. Die Zuführleitungen 11 für das Leimgehäuse 5 umfassen ein Durchflussmengenmessgerät 8, welches die durch die Leitungen 11 geflossene Leimmenge pro Zeiteinheit ermittelt. Die Leimmenge im Leimgehäuse wird auf einem konstanten Niveau gehalten. Die durchgeflossene Leimmenge pro Zeiteinheit wird der Steuervorrichtung 9 zugesendet und dort 9 gespeichert. Die Leimmenge, die von der Auftragswalze 1 auf die Klischeewalze 3 übertragen wird, wird, wie bereits oben beschrieben, von der radialen Position der Walzen 1 , 2 und 3 zueinander bestimmt. Die radiale Position der Walzen ist über in den Figuren nicht dargestellten Spindeln entlang der Pfeile 12, 13 einstellbar. Die Spindeln werden über geeignete Motoren angetrieben und die Position wird über geeignete Positionsgeber der Steuervorrichtung 9 zugesendet und in derselben 9 gespeichert.FIG. 2 shows a preferred embodiment of the glue application station 10 according to the invention. The same components bear the same reference numerals. The supply lines 11 for the glue housing 5 comprise a flow rate meter 8, which determines the amount of glue flowed through the lines 11 per time unit. The amount of glue in the glue housing is kept at a constant level. The amount of glue flowing through per unit of time is sent to the control device 9 and stored there. The amount of glue that is transferred from the applicator roll 1 to the plate roller 3, as already described above, determined by the radial position of the rollers 1, 2 and 3 to each other. The radial position of the rollers is adjustable via spindles, not shown in the figures, along the arrows 12, 13. The spindles are driven by suitable motors and the position is sent via suitable position sensor of the control device 9 and stored in the same 9.
Die Klischeewalze 3 überträgt den Leim bzw. Klebstoff 6 auf das Werkstück 7, welches zeitgleich von der Andrückwalze 4 geführt wird. Die radiale Position der Andrückwalze ist gemäß des Pfeils 11 verstellbar, so dass der Anpressdruck des Klischees auf dem Werkstück eingestellt werden kann. Außerdem wird auch die radiale Position der Andrückwalze 4 der Steuervorrichtung zugesendet und in dieser gespeichert.The cliché roller 3 transfers the glue or adhesive 6 onto the workpiece 7, which is guided by the pressure roller 4 at the same time. The radial position of the pressure roller is adjustable according to the arrow 11, so that the contact pressure of the plate on the workpiece can be adjusted. In addition, the radial position of the pressure roller 4 is sent to the control device and stored in this.
In so genannten Zettelapparaten wird die Funktion der Andrückwalze von einem starr gelagerten Falzzylinder übernommen. Die radiale Position der Walzen zueinander wird in diesem Fall dann durch die Verstellung der zugeordneten Klischeewalze bestimmt.In so-called Zettelapparaten the function of the pressure roller is taken over by a rigidly mounted folding cylinder. The radial position of the rollers to each other is then determined in this case by the adjustment of the associated plate roller.
Die in der Steuervorrichtung gespeicherten Daten (Leimmenge pro Zeiteinheit, Spindelpositionen 11 , 12, 13) werden von einer geeigneten Software ausgewertet und die Leimmenge bestimmt, die auf ein einzelnes Werkstück gelangt ist. Diese Leimmenge wird als Istwert (Ist-Leimmenge) von der Steuervorrichtung 9 mit einem in derselben 9 gespeicherten Sollwert (SoII- Leimmenge) verglichen. Bei einer einstellbaren Abweichung wird die Leimauftragsmenge von der Steuervorrichtung 9 über die Spindelposition 11 , 12, 13 neu geregelt. So wird sichergestellt, dass das Werkstück mit einer optimalen Leimmenge versehen wird. Die Steuervorrichtung überprüft (berechnet) in regelmäßigen Abständen den aktuellen Istwert der auf das Werkstück aufgetragenen Leimmenge. In einem geschlossenen Regelkreis wird die Leimmenge ständig nachgeregelt, so dass die beleimten Werkstücke eine gleich bleibende Qualität haben. The data stored in the control device (glue amount per unit time, spindle positions 11, 12, 13) are evaluated by a suitable software and determines the amount of glue that has come to a single workpiece. This amount of glue is compared as an actual value (actual amount of glue) by the control device 9 with a desired value (SoII glue amount) stored in the same 9. With an adjustable deviation, the glue application amount is re-controlled by the control device 9 via the spindle position 11, 12, 13. This ensures that the workpiece is provided with an optimum amount of glue. The control device checks (calculates) at regular intervals the current actual value of the amount of glue applied to the workpiece. In a closed loop, the amount of glue is constantly readjusted, so that the glued workpieces have a consistent quality.

Claims

Eine Vorrichtung und ein Verfahren zum formatmäßigen Auftragen von Leim bzw.Klebstoff auf WerkstückePatentansprüche An apparatus and method for the size-wise application of glue to workpieces Patent claims
1. Leimauftragsstation (10) zum formatmäßigen Auftragen von Leim bzw. Klebstoff (6) auf Werkstücke in der Produktion von Säcken mit1. Glue application station (10) for the format application of glue or adhesive (6) on workpieces in the production of sacks with
- einem Leimgehäuse (5), welches den Leim bzw. Klebstoff (6) umfasst,a glue housing (5) which comprises the glue or adhesive (6),
- einer Auftragswalze (1 ), mit welcher Leim bzw. Klebstoff (6) aus dem Leimgehäuse entnehmbar und auf das Klischee des Klischeezylinders (3) auftragbar ist, welches den Leim formatmäßig auf das Werkstück (7) überträgt,- An applicator roll (1), with which glue or adhesive (6) can be removed from the glue housing and on the cliché of the plate cylinder (3) can be applied, which transmits the size of the glue on the workpiece (7),
- zumindest einer Dosierwalze (2), mit welcher die Menge des Leims, den die Auftragswalze (1 ) aus dem Leimgehäuse entnimmt, beeinflussbar ist,- At least one metering roller (2), with which the amount of glue, the applicator roller (1) removes from the glue housing, can be influenced,
- einem Gegendruckzylinder (4), auf welchem (4) das Werkstück beim Leimübertrag des Klischeezylinders (3) führbar ist, und- A counter-pressure cylinder (4), on which (4) the workpiece during the glue transfer of the plate cylinder (3) is feasible, and
- mit Beabstandungseinrichtungen, beispielsweise Spindeln, mit denen die radialen Positionen der vorgenannten Walzen (1 , 2, 3, 4) zueinander zur Regulierung der Leimauftragsmenge einstellbar sind, dadurch gekennzeichnet, dass die Beabstandungsvorrichtung über Motoren antreibbar ist.- With spacers, such as spindles, with which the radial positions of the aforementioned rollers (1, 2, 3, 4) to each other for regulating the Leimauftragsmenge are adjustable, characterized in that the spacing device is driven by motors.
2. Leimwerk (10) nach vorstehendem Anspruch, dadurch gekennzeichnet, dass ein Positionsgeber vorgesehen ist, mit welchem die aktuelle Position der Beabstandungsvorrichtungen bestimmbar ist. 2. gluing unit (10) according to the preceding claim, characterized in that a position sensor is provided with which the current position of the spacing devices can be determined.
3. Leimwerk (10) nach vorstehendem Anspruch, dadurch gekennzeichnet, dass eine Steuervorrichtung (9) vorgesehen ist, welcher die aktuelle Position der Beabstandungsvorrichtung als Signal zuleitbar ist.3. gluing unit (10) according to the preceding claim, characterized in that a control device (9) is provided, which the current position of the spacing device is fed as a signal.
4. Leimwerk (10) nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass4. gluing unit (10) according to any one of the preceding claims, characterized in that
- eine Zuführleitung (11 ) für das Leimgehäuse (5) vorgesehen ist, über welche (11 ) dem Leimgehäuse Leim bzw. Klebstoff (6) zuführbar ist- A supply line (11) for the glue housing (5) is provided, via which (11) the glue housing glue or adhesive (6) can be fed
- und welche (11 ) ein Durchflussmengenmessgerät (8) umfasst.- And which (11) comprises a flow meter (8).
5. Leimwerk (10) nach einem der vorstehenden Ansprüche 3 bis 4, dadurch gekennzeichnet, dass das Durchflussmengenmessgerät (8) die durchgeflossene Leimmenge als Signal an die Steuervorrichtung (9) sendet.5. gluing unit (10) according to any one of the preceding claims 3 to 4, characterized in that the flow rate meter (8) sends the amount of glue flowed through as a signal to the control device (9).
6. Leimwerk (10) nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass mittels der Steuervorrichtung (9) aus der Anzahl der mit Leim beaufschlagten Werkstücke (7) und der in gleicher Zeit durch das Durchflussmengenmessgerät (11 ) durchgeflossene Leimmenge die Leimmenge pro Werkstück berechenbar ist (Ist-Leimmenge) und diese mit einer Soll-Leimmenge, die in der Steuereinrichtung gespeichert ist, vergleichbar ist.6. gluing unit (10) according to any one of the preceding claims, characterized in that by means of the control device (9) from the number of treated with glue workpieces (7) and at the same time by the flow rate meter (11) through the amount of glue amount of glue per workpiece is calculable (actual glue amount) and this is comparable to a desired amount of glue stored in the control device.
7. Leimwerk (10) nach einem oder mehreren der vorstehenden Ansprüche 3 bis 7, dadurch gekennzeichnet, dass die Motoren durch die Steuervorrichtung derart ansteuerbar sind, dass die Ist- Leimmenge der Soll-Leimmenge angleichbar ist.7. gluing unit (10) according to one or more of the preceding claims 3 to 7, characterized in that the motors are controlled by the control device such that the actual amount of glue of the target glue amount is equalized.
8. Verfahren zum formatmäßigen Auftragen von Leim bzw. Klebstoff (6) auf Werkstücke in der Produktion von Säcken, wobei8. A process for the format application of glue or adhesive (6) on workpieces in the production of sacks, wherein
- ein Leimgehäuse (5) vorgesehen ist, aus welchem Leim bzw. Klebstoff (6) entnommen wird, - über eine Auftragswalze (1 ) Leim bzw. Klebstoff (6) aus dem Leimgehäuse entnommen und auf das Klischee des Klischeezylinders (3) aufgetragen wird, wobei vom Klischee der Leim formatmäßig auf das Werkstück (7) übertragen wird,- A glue housing (5) is provided, from which glue or adhesive (6) is removed, - Using an applicator roll (1) glue or adhesive (6) removed from the glue housing and applied to the cliché of the plate cylinder (3), wherein the cliché of the size of the glue is transferred to the workpiece (7),
- über eine Dosierwalze (2) die Menge des Leims, den die Auftragswalze (1 ) aus dem Leimgehäuse entnimmt, beeinflusst wird,via a metering roller (2), the amount of glue, the applicator roller (1) takes from the glue housing, is influenced,
- das Werkstück (7) auf einem Gegendruckzylinder (4) beim Leimübertrag des Klischeezylinders (3) geführt wird,- The workpiece (7) on a counter-pressure cylinder (4) during the glue transfer of the plate cylinder (3) is guided,
- die radialen Positionen von vorgenannten Walzen (1 , 2, 3, 4) zueinander zur Regulierung der Leimauftragsmenge über Beabstandungsvorrichtun- gen, beispielsweise Spindeln, eingestellt werden, dadurch kennzeichnet, dass die Beabstandungsvorrichtung über Motoren angetrieben werden.- The radial positions of said rollers (1, 2, 3, 4) to each other to regulate the glue application amount on Spreizungsvorrichtun-, for example, spindles set, characterized in that the spacing device are driven by motors.
9. Verfahren nach vorstehendem Anspruch, dadurch gekennzeichnet, dass das Durchflussmessgerät (8) die durchgeflossene Leimmenge als Signal an die Steuervorrichtung (9) sendet.9. The method according to the preceding claim, characterized in that the flowmeter (8) sends the amount of glue flowed through as a signal to the control device (9).
10. Verfahren nach einem der beiden vorstehenden Ansprüche, dadurch gekennzeichnet, dass mittels der Steuervorrichtung (9) aus der Anzahl der mit Leim beaufschlagten Werkstücke (7) und der in gleicher Zeit durch das Durchflussmengenmessgerät (11 ) durchgeflossene Leimmenge die Leimmenge pro Werkstück berechnet wird (Ist-Leimmenge) und diese mit der Soll-Leimmenge, die in der Steuereinrichtung gespeichert wird, verglichen wird.10. The method according to one of the two preceding claims, characterized in that by means of the control device (9) from the number of treated with glue workpieces (7) and in the same time by the flow rate meter (11) through the amount of glue amount of glue per workpiece is calculated (Actual glue amount) and this is compared with the target amount of glue stored in the controller.
11. Verfahren nach einem der drei vorstehenden Ansprüche, dadurch gekennzeichnet, dass die Motoren durch die Steuervorrichtung derart angesteuert werden, dass die Ist-Leimmenge der Soll-Leimmenge angeglichen wird. 11. The method according to any one of the three preceding claims, characterized in that the motors are controlled by the control device such that the actual amount of glue of the desired amount of glue is equalized.
EP09717466A 2008-02-29 2009-02-12 A device and a method for spreading glue or adhesive on workpieces in a desired format Active EP2252408B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810012072 DE102008012072B3 (en) 2008-02-29 2008-02-29 An apparatus and method for the format application of glue to workpieces
PCT/EP2009/051654 WO2009109450A1 (en) 2008-02-29 2009-02-12 A device and a method for spreading glue or adhesive on workpieces in a desired format

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EP2252408A1 true EP2252408A1 (en) 2010-11-24
EP2252408B1 EP2252408B1 (en) 2012-11-07

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ITUA20163312A1 (en) * 2016-05-10 2017-11-10 Nordmeccanica Spa DEVICE FOR COATING AN ADHESIVE ON A FILM AND APPARATUS FOR PRODUCING A MULTI-LAYER FILM PROVIDED WITH THIS COVERING DEVICE
DE102017003021B3 (en) 2017-03-29 2018-08-30 Baumer Hhs Gmbh Hot glue application system and method
CN108855769A (en) * 2018-08-29 2018-11-23 滁州千字文印务有限公司 One kind is for the clean plate manufacture glue filling apparatus of chromatic printing equipment
CN113561508A (en) * 2021-08-23 2021-10-29 东莞华贝电子科技有限公司 Electronic device pasting method and pasting equipment

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