EP2456568A1 - Prévention des dépôts de colle sur une plaque à buses - Google Patents

Prévention des dépôts de colle sur une plaque à buses

Info

Publication number
EP2456568A1
EP2456568A1 EP10735004A EP10735004A EP2456568A1 EP 2456568 A1 EP2456568 A1 EP 2456568A1 EP 10735004 A EP10735004 A EP 10735004A EP 10735004 A EP10735004 A EP 10735004A EP 2456568 A1 EP2456568 A1 EP 2456568A1
Authority
EP
European Patent Office
Prior art keywords
glue
fluid
nozzle plate
workpiece
web
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
EP10735004A
Other languages
German (de)
English (en)
Other versions
EP2456568B1 (fr
Inventor
Marco Daher
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
Priority to PL10735004T priority Critical patent/PL2456568T3/pl
Publication of EP2456568A1 publication Critical patent/EP2456568A1/fr
Application granted granted Critical
Publication of EP2456568B1 publication Critical patent/EP2456568B1/fr
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
    • 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
    • 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
    • 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
    • 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

Definitions

  • the invention relates to a device for providing workpieces or webs with glue according to the preamble of claim 1 and a method according to the preamble of claim 7.
  • Such a device comprises a nozzle plate, on which the workpieces or the webs can be guided along a transport direction. Most of the workpieces to be glued touch the nozzle plate. These has a first surface, which faces the workpieces to be glued.
  • the nozzle plate comprises one or more glue stoma openings, from which glue emerges, which then adhere to the areas of the workpieces to be glued.
  • glue reservoirs and / or glue lines are provided with which the required glue can be provided.
  • glue valves are provided between the glue reservoirs and / or glue lines and the glue ports.
  • Each glue valve can be assigned a single glue outlet or a group of glue ports.
  • the glue flow between the glue reservoirs and / or glue lines and the glue outlet openings can be produced and interrupted.
  • By selective control of the valves so a desired glue format can be applied directly to the workpiece to be bonded.
  • the bringing together of the components to be bonded takes place in the transport direction behind the device just described and will not be described in detail here.
  • the invention is not limited to devices with a nozzle plate.
  • individual nozzles can be fastened to a frame. These can then be arranged on a line which runs transversely to the transport direction of the workpieces. The nozzles can then, in contrast to the nozzle plate, be arranged contactlessly to the workpiece.
  • the edge between the two surfaces has a chamfer.
  • the first and the second surface can also be arranged at another, arbitrary angle.
  • the object of the present invention is therefore to improve the described device so that the quality of the bags produced therewith is improved.
  • a device which comprises in addition to the preamble features of claim 1 and its characterizing features. Accordingly, it is provided that at least one fluid outlet opening is provided on or in the nozzle plate. By means of this fluid outlet opening, a fluid can now be conducted with which the glue accumulation can be detached from the nozzle plate and / or with which it is avoided that a glue accumulation will ever occur.
  • the fluid is provided in at least one fluid reservoir and directed in a suitable manner to the fluid outlet opening.
  • the fluid outlet opening is advantageously arranged at the rear end of the nozzle plate, so that the fluid, which exits, for example, as a directed fluid jet from the at least one opening, can act directly on the Leimansammlung. A Glue collection can be removed very quickly, reliably and easily.
  • the at least one fluid port may be introduced into the nozzle plate, for example bored. But it can also be incorporated in a separate component, this component can then be attached to the nozzle plate in a suitable manner familiar to those skilled. But a Fluidusthttsö réelle can also be the end of a line, such as a hose.
  • a Fluidusthttsö réelle can also be the end of a line, such as a hose.
  • at least one fluid line is provided, which connects the fluid outlet opening with a fluid reservoir.
  • This fluid conduit may, for example, comprise one or more holes in the nozzle plate or be in a separate component which may be suitably secured to the nozzle plate.
  • the fluid lines can also comprise further lines, such as tubes or tubes.
  • the fluid reservoir can thus be arranged at a remote location, which offers sufficient space.
  • At least one valve is provided with which the fluid outlet can be controlled or regulated.
  • the at least one valve may accordingly be provided as a simple switching valve or as a control valve.
  • the flow rate can also be adjusted via a controllable pump.
  • a suitable sensor which measures the flow rates, can also be provided.
  • the fluid outlet openings are arranged in a line behind a Leimausthttsö réelle. It is to be expected that the glue accumulates particularly behind a glue outlet opening, so that an arrangement of a fluid outlet opening in this area enables easy cleaning.
  • the fluid outlet openings are arranged offset from the glue outlet openings, so that, for example, the area of two glue outlet openings can be cleaned with a fluid outlet opening.
  • the at least one fluid outlet opening is formed as a gap or slot, which or which extends transversely to the transport direction. This covers such a gap or such a slot several glue outlet openings or even almost the entire width of the nozzle plate.
  • the big advantage of this arrangement is the fact that a homogeneous fluidity allows a very effective cleaning.
  • a suitable configuration of the end regions of the fluid line is of course necessary in order to distribute the fluid evenly over the entire gap width.
  • water, water vapor, air or anti-adhesive agents are to be provided as fluids.
  • the device may be operable with one or more of these fluids.
  • an anti-adhesive agent before the start of production or even during production, so as to reduce the adhesion tendency of the glue.
  • antiblocking agents may be, for example, silicone spray or Teflon spray. This procedure is particularly worth mentioning, as this prevents the onset of glue accumulation.
  • the onset of a glue accumulation often acts as a germ on which further glue can easily accumulate.
  • the growth of a glue collection therefore does not run linearly with time or with the number of glued workpieces, but has a greater dependence. It may thus be advantageous to continuously guide a fluid through the fluid outlet openings.
  • a gaseous fluid preferably air
  • a gaseous or a liquid fluid preferably water
  • FIG. 1 side view of a schematically illustrated, inventive
  • FIG. 2 Enlarged view of the area of Figure 1, which is surrounded by a dashed right-hand corner, but with a slightly different arrangement of the lines.
  • FIG. 4 perspective view of a nozzle plate
  • FIG. 5 perspective view of another nozzle plate
  • Fig. 1 shows a device 1 for providing flat workpieces or webs with glue.
  • glue for example, pieces of hose 2.
  • webs are provided with glue for forming hoses along longitudinal seams.
  • Hose pieces can be provided with glue, for example, to glue on or stick on valve leaflet, inner latch or bottom cover sheets.
  • the latter workpieces may also need to be provided with glue.
  • the bonding of floor flaps can take place (so-called floor bonding). Even in the production of sacks, therefore, there are numerous applications for the device according to the invention.
  • the tube pieces 2 are conveyed by an indicated transport device 3 in the transport direction x, which runs transversely to the main extension direction y of the tube pieces 2, through the device 1.
  • the ends of the tube pieces 2, of which only one is shown, have been raised to form flaps and folded triangular pockets.
  • This wound-up end forms an area that is orthogonal to the main extension direction of the tube piece 2 (direction z).
  • the front of this surface, which is thus facing away from the main part of the hose piece 2, must be freely accessible for gluing with glue. So that during the gluing process the wound end does not yield back, the Back of the surface supported by a counter 5.
  • this counter-5 comprises an endless conveyor belt 6, which rotates about two cylinders 7 and 8, of which at least one is driven.
  • the abutment may also comprise a rotating cylinder or even a fixed baffle.
  • a gluing head 9 On the front of the floors, a gluing head 9 is provided, which ensures the glue application according to the desired format.
  • This gluing head 9 comprises a nozzle plate 10, which can be subdivided into a nozzle body 11 and a pressure plate 12.
  • the two latter elements 11 and 12 are shown separately in the figure, but may also be integrally formed.
  • the conveyor belt 6 facing first surface 13 of the pressure plate 12 may form a small angle with the conveyor belt 6, so that conveyor belt 6 and first surface 13 form an inlet funnel, d. H. the distance between the two surfaces decreases in the transport direction x.
  • the piece of tubing can be pressed against the conveyor belt 6, without being kinked or damaged.
  • the gluing head 9 comprises a plurality of valves 19, to which glue can be supplied from a glue reservoir, not shown, via the feed line 20, this glue being under an overpressure.
  • a glue flow can now be produced, which can be supplied via the glue lines 21 and 22 of the glue outlet opening 23.
  • the direction of the glue flow is indicated by the arrow F.
  • the glue lines 21 and 22 can branch, so that a plurality of glue outlet openings can be loaded with glue via a valve.
  • the glue lines 21, 22 may be introduced as holes in the material.
  • the glue line 22 extends obliquely in Transport direction of the hose pieces 2, where it opens exactly in the edge 15, which connects the surfaces 13 and 15.
  • the gluing head comprises a cleaning device 24.
  • This comprises further valves 25 to which a cleaning fluid is provided via the supply lines 26.
  • a valve 25 can now establish the connection to the fluid lines 27 and 28, so that the fluid can escape from the fluid outlet openings 30.
  • the fluid line 28 is introduced into an extension piece 29, which, however, can also be designed in one piece with the nozzle body 11 and / or the pressure plate 12.
  • the fluid line 28 is oriented so that the outflowing fluid can reach the rear surface 16 and from there flow along the rear surface 18, so that it peels off the glue accumulation.
  • the exit of the fluid from the fluid exit ports 30 may also serve to wet the surfaces 16 and 18 with a fluid having an anti-sticking property so that the tendency of the glue to adhere to the surface 16 and / or 18 is reduced.
  • FIG. 2 shows a detail of FIG. 1 in an enlarged view, wherein, however, the fluid lines 27 and 28 are arranged differently in comparison with FIG. These are not performed in this embodiment by the nozzle body 11, but outside of the nozzle body 11.
  • the fluid lines 27 and 28 may consist of suitable tubes or hoses.
  • FIG. 3 again shows a device 1 for providing flat workpieces or webs with glue, but in which the nozzle head has a different design compared with the device of FIG having.
  • no protrusion is provided with an undercut, so that this nozzle head comprises only a rear surface 16.
  • This surface occupies an angle of approximately 90 degrees with the surface 13.
  • the glue outlet openings 23 are now arranged in the surface 13.
  • the cleaning device 24 is not changed in terms of their design and function.
  • the according to FIG. 3 again shows a device 1 for providing flat workpieces or webs with glue, but in which the nozzle head has a different design compared with the device of FIG having.
  • no protrusion is provided with an undercut, so that this nozzle head comprises only a rear surface 16.
  • This surface occupies an angle of approximately 90 degrees with the surface 13.
  • the glue outlet openings 23 are now arranged in the surface 13.
  • the cleaning device 24 is not changed in terms of their design and function.
  • the according to FIG. 3 again shows a device 1 for
  • FIG. 4 shows a gluing head 9 according to FIG. 3 in a perspective view.
  • the glue outlet openings 23 on the surface 13 are now clearly visible.
  • the size of the glue outlet openings is shown exaggerated. In practice, they may be much smaller in relation to the area 13.
  • the number of glue outlet openings 23 may be larger in practice than shown here.
  • the fluid outlet opening is shown in this figure as a slot 31. In the simplest embodiment of this slot can be acted upon via a single valve 25 with a fluid. This embodiment is shown in FIG. Nevertheless, a plurality of valves 25 can also be provided, via which the wide slot 31 can be supplied with a fluid.
  • two valves can be provided, one of which can connect a first fluid reservoir, with which a cleaning fluid can be provided, to the wide slot 31, and of which the other can connect a second fluid reservoir, with which an anti-adhesive fluid can be provided, to the wide slot 31.
  • the wide slot 31 may be configured as a nozzle, so as to produce a directed fluid jet, which is directed against the rear surface 16.
  • FIG. 5 shows a further embodiment of the invention.
  • the fluid outlet openings 30 are designed circular, wherein the size and the number of these openings 30 may differ significantly in practice from the drawing.
  • Each valve 25, the number of which is arbitrary in FIG. 5, may provide one or more openings 30 with fluid.
  • FIG. 6 again shows sections from FIG. 3, the flow path of the cleaning fluid now being illustrated by short arrows 32. The fluid flow is directed against the surface 16 and deflected therefrom, so that the fluid enters the area between the surface 16 and the glue pool 33 and the glue pool 33, which has formed in the region of the tear-off edge 34, disengages from the surface 16 , This cleaning process can be carried out from time to time during a production standstill.
  • such a cleaning process can also be carried out during production, if there is no hose piece 2 in the region of the glue outlet openings 23 or the area of the hose is not critical with regard to small soiling.
  • a cleaning process can for example be done after passing each piece of tubing, however, larger cleaning intervals may be advantageous.
  • advantageous features of the invention have been explained with reference to various embodiments. Although features are shown only in individual embodiments, so various features can be combined arbitrarily. Such combinations do not cause difficulties for the person skilled in the art.

Landscapes

  • Coating Apparatus (AREA)

Abstract

La présente invention concerne un dispositif (1) pour appliquer de la colle sur des pièces ou des bandes de matière, le dispositif comprenant une plaque à buses (10) au niveau de laquelle on peut faire passer la pièce ou la bande de matière dans une direction de transport (x) et qui comprend plusieurs ouvertures de sortie de colle. Sur ou dans la plaque à buses sont disposés plusieurs clapets à colle (19) qui servent à établir et interrompre le flux de colle entre un réservoir de colle et/ou des conduites d'amenée de colle (21, 22) et des ouvertures de sortie de colle (23) de sorte que la colle peut être appliquée sur la surface à encoller de la pièce (2) ou de la bande de matière selon un format souhaité. Sur ou dans la plaque à buses (10) se trouve au moins une ouverture de sortie de liquide (30) à travers laquelle un liquide peut être dirigé.
EP10735004.3A 2009-07-24 2010-07-22 Prévention d'accumulation de matière adhésive de la plaque de buse Active EP2456568B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10735004T PL2456568T3 (pl) 2009-07-24 2010-07-22 Zapobieganie odkładaniu się kleju na płycie dyszowej

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009034687.2A DE102009034687B4 (de) 2009-07-24 2009-07-24 Vorrichtung und Verfahren zum Versehen von Werkstücken oder Bahnen mit Leim
PCT/EP2010/060638 WO2011009913A1 (fr) 2009-07-24 2010-07-22 Prévention des dépôts de colle sur une plaque à buses

Publications (2)

Publication Number Publication Date
EP2456568A1 true EP2456568A1 (fr) 2012-05-30
EP2456568B1 EP2456568B1 (fr) 2018-03-28

Family

ID=42937068

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10735004.3A Active EP2456568B1 (fr) 2009-07-24 2010-07-22 Prévention d'accumulation de matière adhésive de la plaque de buse

Country Status (5)

Country Link
EP (1) EP2456568B1 (fr)
DE (1) DE102009034687B4 (fr)
ES (1) ES2667495T3 (fr)
PL (1) PL2456568T3 (fr)
WO (1) WO2011009913A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010024361A1 (de) * 2010-06-18 2011-12-22 Focke & Co. (Gmbh & Co. Kg) Verfahren und Vorrichtung zum Auftragen von Leim auf Zuschnitte
PL3138634T3 (pl) * 2011-04-11 2024-02-19 Nordson Corporation Układ, dysza oraz sposób powlekania elastycznych pasm
US9034425B2 (en) 2012-04-11 2015-05-19 Nordson Corporation Method and apparatus for applying adhesive on an elastic strand in a personal disposable hygiene product
US9682392B2 (en) 2012-04-11 2017-06-20 Nordson Corporation Method for applying varying amounts or types of adhesive on an elastic strand
BE1021501B1 (nl) * 2012-10-16 2015-12-03 Spiegeleire Dirk Andre Marie De Doseerinrichting en werkwijze voor het reinigen van een doseerinrichting

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IT995407B (it) * 1972-09-22 1975-11-10 Comalco Prod Pty Ltd Complesso per la pulitura di ugelli di spruzzatura mediante un solvente
JPS6356632U (fr) * 1986-09-30 1988-04-15
AU2729788A (en) * 1987-11-16 1989-06-14 Nordson Corporation Method and apparatus for preventing coating of nozzle
DE29509108U1 (de) * 1995-06-02 1996-09-26 Memmen Krueger Gerhard Beheizbarer Auftragskopf für den kontaktlosen Klebstoffflächenauftrag
DE10309893B4 (de) 2002-09-13 2019-05-23 Windmöller & Hölscher Kg Bodenlegevorrichtung für Papiersäcke sowie Verfahren zum Betrieb einer Bodenlegevorrichtung
DE10242732A1 (de) 2002-09-13 2004-03-25 Windmöller & Hölscher Kg Bedienungsstation und ein Bedienverfahren für einen Kreuzbodenleger
DE10327646B4 (de) 2002-09-13 2007-07-12 Windmöller & Hölscher Kg Vorrichtung zur Bildung eines Leimprofils für Kreuzbodensäcke
JP2004148167A (ja) * 2002-10-29 2004-05-27 Nordson Corp 粘性流体材料の塗布方法及び装置
DE10330750B4 (de) 2003-07-07 2005-09-15 Windmöller & Hölscher Kg Bodenlegevorrichtung für Papiersäcke
DE10330751A1 (de) 2003-07-07 2005-02-10 Windmöller & Hölscher Kg Bodenlegevorrichtung für Papiersäcke
DE10337768A1 (de) * 2003-08-14 2005-03-17 Nordson Corporation, Westlake Düsen- und Filteranordnung sowie System zum Auftragen von Fluid mit festen Partikeln auf ein Substrat
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Title
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Also Published As

Publication number Publication date
DE102009034687A1 (de) 2011-01-27
ES2667495T3 (es) 2018-05-11
WO2011009913A1 (fr) 2011-01-27
PL2456568T3 (pl) 2018-09-28
DE102009034687B4 (de) 2017-03-30
EP2456568B1 (fr) 2018-03-28

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