EP2392408B1 - Dispositif d'application de colle et procédé de nettoyage de celui-ci - Google Patents

Dispositif d'application de colle et procédé de nettoyage de celui-ci Download PDF

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Publication number
EP2392408B1
EP2392408B1 EP11168250.6A EP11168250A EP2392408B1 EP 2392408 B1 EP2392408 B1 EP 2392408B1 EP 11168250 A EP11168250 A EP 11168250A EP 2392408 B1 EP2392408 B1 EP 2392408B1
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EP
European Patent Office
Prior art keywords
glue
fluid
chamber
cleaning
paper
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.)
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Application number
EP11168250.6A
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German (de)
English (en)
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EP2392408A1 (fr
Inventor
Andreas Lamkemeyer
Ralf Klang
Marco Daher
Achim Seeberger
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
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Windmoeller and Hoelscher KG
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Publication of EP2392408A1 publication Critical patent/EP2392408A1/fr
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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
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B05B15/55—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids

Definitions

  • the invention relates to a device for applying glue to areas of paper or plastic webs or paper or plastic web sections for the production of sacks, preferably of paper sacks, according to the preamble of claim 1 and a method for cleaning such a device according to the preamble of the claim 6th
  • a tube is formed from one or more webs which initially form a web, often multi-ply, wherein one or more glue tracks are applied in the longitudinal direction to the regions of the web which are subsequently overlapped with other regions of the web (so-called webs) tube formation).
  • the webs may be made of paper and / or plastic. From the tube formed pieces of tubing are isolated, are molded to the later soils, in turn, for the bonding of the floors adhesive is applied to parts of these pieces of hose.
  • starch glue is often used. In the following parts of this application, therefore, instead of the word adhesive, the word glue is also used without limiting the subject matter of the invention.
  • the applied format can be influenced.
  • Such devices often include a nozzle assembly having a plurality of glue exit ports and glue delivery lines to these glue exit ports.
  • the glue valves are arranged on this nozzle unit, via which the glue supply lines and thus the glue outlet openings can be selectively supplied with glue.
  • the nozzle unit also comprises at least one glue chamber, with which the glue can be provided. Via additional glue lines, the glue from the glue chamber can be brought to the individual glue valves.
  • the nozzle unit is often constructed in two parts, wherein in a nozzle plate usually the glue outlet openings and Leimzuloomtechnischen are introduced.
  • the nozzle head often carries the glue valves as well as the glue chamber.
  • said device comprises a connection for a cleaning fluid, such as water. If the format of the bags to be produced is changed, the device must be completely cleaned in order, in particular, to clean the valves, which are not needed in the following production batch, so that they remain functional. For this purpose, the cleaning fluid is introduced into the glue chamber, so that these and the adjoining glue leading components can be flushed.
  • a cleaning fluid such as water
  • pamphlets EP 0 844 068 A2 and EP 2 163 312 A1 show separate fluid supply lines.
  • the object of the present invention is to propose a device with which an entry of glue into the fluid lines and / or the fluid chamber can be prevented.
  • each fluid line includes a check valve.
  • fluid lines are provided, which open in glue lines or in Leimzumoltechnischen. It is thus possible to introduce the cleaning fluid from the fluid chamber to the parts which carry the glue, this taking place in particular in the area of the valves.
  • the glue chamber is closed hydraulically and the cleaning fluid is pressurized. Münden the fluid lines in the glue supply, so the way in a simple and fast way all glue outlet openings, so the points of the Leim effetssystems, which come into contact with the outside air, are cleaned. Upstream of the glue line system, the glue remains in the glue-carrying parts, but no outside air gets to the glue, which would lead to solid-drying of the glue. Cleaning this very short glue leading parts can be done very quickly. It needs no glue to be taken.
  • valves and the glue associated with this valve are cleaned leading parts that are open. So it is possible to clean valves that are not needed, for example, for a subsequent order. Such cleaning can be done even if a new job has already been started. A production interruption for the purpose of cleaning glue leading parts is therefore no longer necessary.
  • each glue valve is associated with at least one fluid line, wherein the fluid line opens in the glue line supplying the valve with glue.
  • the fluid line in the Leimzumoltechnische is important to associate a fluid line with each valve so that selective cleaning of a single valve and / or lines carrying the glue associated therewith is possible.
  • the invention further provides a method for cleaning a device according to the invention, as described above.
  • the cleaning fluid is supplied with a separate from the glue chamber fluid chamber.
  • the cleaning fluid is passed through a check valve.
  • the glue chamber is hydraulically closed against inflow of cleaning fluid. This prevents the cleaning fluid in the mouth region of the fluid line from entering the glue-carrying lines upstream and the fluid mixing with the glue.
  • valves that are to be cleaned are opened. This opening preferably occurs when the cleaning fluid is pressurized.
  • the device for applying glue before cleaning is moved from an operating position, in which glue is applied to areas of paper or plastic webs or paper or plastic web sections for producing paper sacks, into a cleaning position.
  • a device for collecting and / or discharging the fluid and / or the flushed glue may be provided, for example a collecting trough.
  • the cleaning fluid is subjected to a pressure of more than 10 bar, preferably more than 20 bar. In this way, a quick and especially thorough cleaning can be done.
  • Fig. 1 shows an inventive device for applying glue 1 on areas of paper and / or plastic sheets 2 or paper and / or plastic web sections.
  • Such devices may, for example, in a in the DE 103 09 893 described Bodenlege raised or one in the DE 10 2007 032 401 A1 disclosed hose machine can be used.
  • the device for applying glue 1 acts against a counter-pressure cylinder 3, via which a web 2 can be guided.
  • the web 2 can be multi-layered. It is also possible to guide the web over a plurality of guide rollers and to arrange the device 1 between two rollers, so that the device acts at a location on the web, where it is guided freely. In this case, it is easier to arrange collecting elements in the area of the web, in particular laterally of the web, which collect the fluid / glue mixture during production.
  • the device 1 comprises a nozzle unit 4 comprising a plurality of components.
  • the nozzle plate 5 which comprises a plurality of glue outlet openings 6 distributed over this nozzle plate, from which glue can emerge and strike the web 2.
  • the distribution of the glue outlet openings 6 via the nozzle plate can be provided according to the requirements.
  • glue outlet openings can be arranged individually next to one another transversely to the transport direction of the web 2.
  • the nozzle plate 5 is attached to a nozzle head 7, which may consist of one or more individual parts.
  • a nozzle head is shown, which consists of the three parts 7a, 7b and 7c.
  • the nozzle head may be mounted in the machine frame, not shown, or components attached thereto.
  • a plurality of glue valves 8 are arranged on the nozzle head 7, but only one of which is shown.
  • glue channels 9 glue chambers in combination. In the embodiment shown hereof only one glue channel 9 is shown, which is introduced as a bore in the part 7b of the nozzle head 7.
  • glue flow Via a connection, not shown, which is fed by means of pumps from a glue reservoir, glue passes into the glue channel 9. From this branch glue lines 10, wherein each glue valve 8 is advantageously associated with at least one own glue line. With this glue valve 8, the glue stream can be interrupted and produced. When the glue valve 8 is open, the glue continues to flow through the glue feed line 11, which continues through the component 7a to the glue outlet opening 6.
  • a fluid line 12 which finds its starting point in the fluid chamber 13.
  • This fluid chamber 13 is arranged in the embodiment shown outside of the nozzle head 7, but may, similar to the glue channel 9, be integrated in it. the fluid chamber 13 and the glue channel 9 are advantageously arranged parallel to one another.
  • a check valve 15 is provided in the fluid line 12, which prevents both an influx of the glue into the fluid line 12 and into the fluid chamber 13 and a backflow of the cleaning fluid, which is usually mixed with glue.
  • the FIG. 5 shows details of a particularly preferred for the purposes purposes check valve.
  • a drip pan 16 is provided, which is attached to a suitable component and is connected for example in this way with the machine frame, not shown.
  • the nozzle unit 4 can be pivoted about bearings, not shown, so that the glue outlet openings are positioned above the sump 16 (so-called cleaning position) to ensure about a collection of the fluid / glue mixture during the cleaning process.
  • a cleaning element such as a sponge, can be provided in or on the drip pan 16, with which the glue and / or cleaning fluid accumulating on the surface of the nozzle plate 5 in the area of the glue outlet opening 6 can be scraped off.
  • FIG. 2 shows again the in FIG. 1 shown arrangement of the lines 10, 11, 12, 14, chambers 9, 13 and valves 8, 15 in a schematic representation.
  • FIG. 3 shows one opposite to the one in the FIG. 2
  • the mouth 14 is not arranged in the glue line 10, but in the glue supply 11.
  • the line sections to be cleaned and thus the cleaning time are kept short.
  • FIG. 4 showed a further schematic representation of a device according to the invention, with which the already repeatedly used term "hydraulically close" to be explained in more detail.
  • the valve can also be located directly on the glue chamber 9 and fed by the feed line 20.
  • a valve 23 is arranged in or on the feed line 22 to the fluid chamber 13.
  • Both valves 21, 23 are designed as switching valves, with which the inflow to the chambers 9, 13 can be produced or interrupted.
  • the valve 21 is opened and the valve 23 is closed, so that the glue is fed to the glue chamber 9 and from there via the lines and valves already described to glue outlet openings 6. The glue thereby can not pass the check valve 15 and therefore does not reach the fluid chamber 13.
  • valve 21 and all not to be cleaned valves 8 is kept closed or closed.
  • the one or more to be cleaned valves 8 and the valve 23 are now opened, so that the cleaning fluid is now in the line 12 to Mouth 14 arrives. Since the path in the direction of the glue chamber 9 is now blocked due to the closed valves, the cleaning fluid presses through the valve 8 and the line 11 to the glue outlet and exits there, pushing out the glue present in these parts.
  • the path in the direction of the glue chamber 9, which is blocked for the cleaning fluid is referred to as "hydraulically closed".
  • FIG. 5 now shows details of a preferred embodiment of the check valve.
  • a pan 25 which is provided with a non-visible opening through which the fluid from the fluid chamber 13 can flow into the housing.
  • the ball 26 is raised. Now, if a liquid in the direction of the fluid chamber 13 flows into the valve housing 24, the ball 26 is pressed into the pan 25, so that it closes the opening and the liquid can not get into the fluid chamber 13. If the pressure difference between the liquid and the fluid in the fluid chamber is comparatively low, it may happen that the opening in the pan 25 is not adequately and / or not closed fast enough by the ball. In order to make the closing in particular faster, acts on the ball, a spring force which is directed in the direction of the pan 25.
  • This spring force can be applied by any spring element.
  • this is a simple spring 27, which can be supported on its side facing away from the ball on suitable support elements 28.

Landscapes

  • Coating Apparatus (AREA)

Claims (10)

  1. Dispositif d'application de colle sur des régions de bandes de papier ou de plastique ou de sections de bandes de papier ou de plastique pour fabriquer des sacs, de préférence des sacs en papier, comprenant :
    - une unité de buse comprenant plusieurs ouvertures de sortie de colle et plusieurs conduites d'alimentation de colle, ainsi que des soupapes de colle, par le biais desquelles les conduites d'alimentation de colle peuvent être alimentées de manière sélective avec de la colle,
    - une chambre à colle avec laquelle de la colle peut être fournie,
    - des conduites de colle supplémentaires, avec lesquelles de la colle peut être guidée hors de la chambre à colle jusqu'aux soupapes de colle,
    - un raccord pour un fluide de nettoyage, par le biais duquel au moins certaines conduites d'alimentation de colle peuvent être sollicitées avec le fluide de nettoyage,
    une chambre de fluide indépendante de la chambre à colle étant prévue, avec laquelle le fluide de nettoyage peut être alimenté,
    caractérisé en ce
    qu'un clapet antiretour est associé à chaque conduite de fluide.
  2. Dispositif selon à revendication 1,
    caractérisé en ce que
    des conduites de fluide sont prévues, lesquelles débouchent dans des conduites de colle ou dans des conduites d'alimentation de colle.
  3. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce
    qu'au moins une conduite de fluide est associée à chaque conduite de colle, la conduite de fluide débouchant dans la conduite de colle alimentant la soupape avec de la colle.
  4. Dispositif selon l'une quelconque des revendications 1 à 2,
    caractérisé en ce
    qu' au moins une conduite de fluide est associée à chaque conduite de colle, la conduite de fluide débouchant dans la conduite d'alimentation de colle.
  5. Dispositif selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la fonction de fermeture dans le clapet antiretour est assistée au moyen d'un ressort.
  6. Procédé pour nettoyer un dispositif d'application de colle sur des régions de bandes de papier ou de plastique ou de sections de bandes de papier ou de plastique pour fabriquer des sacs, de préférence des sacs en papier, le procédé comprenant les étapes suivantes :
    - fourniture d'une plaque de buse comprenant plusieurs ouvertures de sortie de colle et plusieurs conduites d'alimentation de colle,
    - fourniture d'une tête de buse au niveau de laquelle est fixée la plaque de buse et au niveau de laquelle sont disposées des soupapes de colle, par le biais desquelles les conduites d'alimentation de colle peuvent être alimentées de manière sélective avec de la colle,
    - fourniture d'une chambre à colle par le biais de laquelle les soupapes de colle sont alimentées avec de la colle,
    - fourniture de conduites de colle supplémentaires avec lesquelles de la colle est guidée hors de la chambre à colle jusqu'aux soupapes de colle,
    - au moins certaines conduites d'alimentation de colle et conduites de colle étant sollicitées avec un fluide de nettoyage qui est acheminé par le biais d'un raccord pour le fluide de nettoyage,
    le fluide de nettoyage étant acheminé à une chambre de fluide indépendante de la chambre à colle,
    caractérisé en ce
    qu'un clapet antiretour est associé à chaque conduite de fluide, à travers lequel le fluide de nettoyage est guidé.
  7. Procédé selon la revendication précédente,
    caractérisé en ce que

    la chambre à colle est fermée hydrauliquement pour empêcher l'afflux de fluide de nettoyage.
  8. Procédé selon l'une quelconque des deux revendications précédentes,
    caractérisé en ce que
    des soupapes individuelles qui doivent être nettoyées sont ouvertes.
  9. Procédé selon l'une quelconque des trois revendications précédentes,
    caractérisé en ce que
    le dispositif d'application de colle, avant le nettoyage, est déplacé depuis une position de fonctionnement dans laquelle de la colle est appliquée sur des régions de bandes de papier ou de plastique ou des sections de bandes de papier ou de plastique pour fabriquer des sacs en papier, dans une position de nettoyage.
  10. Procédé selon l'une quelconque des quatre revendications précédentes,
    caractérisé en ce que
    le fluide de nettoyage est sollicité avec une pression supérieure à 10 bar, de préférence supérieure à 20 bar.
EP11168250.6A 2010-06-02 2011-05-31 Dispositif d'application de colle et procédé de nettoyage de celui-ci Active EP2392408B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010029676 2010-06-02

Publications (2)

Publication Number Publication Date
EP2392408A1 EP2392408A1 (fr) 2011-12-07
EP2392408B1 true EP2392408B1 (fr) 2016-04-06

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Application Number Title Priority Date Filing Date
EP11168250.6A Active EP2392408B1 (fr) 2010-06-02 2011-05-31 Dispositif d'application de colle et procédé de nettoyage de celui-ci

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EP (1) EP2392408B1 (fr)
PL (1) PL2392408T3 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9724719B2 (en) 2012-11-09 2017-08-08 L&P Property Management Company Self-cleaning spray valve assembly
US9566599B2 (en) * 2012-11-09 2017-02-14 L&P Property Management Company Self-cleaning spray valve assembly
CN109744652A (zh) * 2019-01-28 2019-05-14 东莞市意利自动化科技有限公司 一种刷胶工具头
CN114308486A (zh) * 2021-12-31 2022-04-12 深圳市曼恩斯特科技股份有限公司 一种清洗系统及涂布模头
CN115121443B (zh) * 2022-07-28 2023-07-04 嘉兴联康沃源科技股份有限公司 一种晶片点胶装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2131949A1 (fr) * 1993-09-29 1995-03-30 Wesley C. Fort Outil pour la pose en continu de colle thermofusible
JPH1028917A (ja) * 1996-07-18 1998-02-03 Nordson Kk 接着剤塗布装置のノズル洗浄方法
JP2948543B2 (ja) * 1996-11-26 1999-09-13 三菱重工業株式会社 グルーガン式糊付装置
DE10023895B4 (de) * 2000-05-18 2012-06-21 "Inatec Innovative Auftragstechnologie" Gmbh Vorrichtung zum Auftragen eines Klebstoffauftrags
US6746534B2 (en) * 2001-11-01 2004-06-08 Met-Coil Systems Corporation Apparatus for applying glue
DE10309893B4 (de) 2002-09-13 2019-05-23 Windmöller & Hölscher Kg Bodenlegevorrichtung für Papiersäcke sowie Verfahren zum Betrieb einer Bodenlegevorrichtung
AU2003266349A1 (en) * 2002-09-13 2004-04-23 Windmoller And Holscher Kg Device for forming a glue profile for cross-base sacks
EP2002898A1 (fr) * 2007-06-14 2008-12-17 J. Zimmer Maschinenbau Gesellschaft m.b.H. Dispositif d'application doté de buses, destiné à appliquer un liquide sur un substrat, procédé destiné à nettoyer le dispositif d'application et les buses du dispositif d'application.
DE102007032401B4 (de) 2007-07-10 2010-07-22 Windmöller & Hölscher Kg Schlauchbildungseinrichtung zum Bilden eines Schlauches aus zumindest einer Materialbahn
EP2163312A1 (fr) * 2008-09-13 2010-03-17 Abb Ag Dispositif pour l'application d'un matériau fluide

Also Published As

Publication number Publication date
PL2392408T3 (pl) 2016-09-30
EP2392408A1 (fr) 2011-12-07

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