EP2456569B1 - Vorrichtung zum versehen von werkstücken oder bahnen mit leim - Google Patents

Vorrichtung zum versehen von werkstücken oder bahnen mit leim Download PDF

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Publication number
EP2456569B1
EP2456569B1 EP10737026.4A EP10737026A EP2456569B1 EP 2456569 B1 EP2456569 B1 EP 2456569B1 EP 10737026 A EP10737026 A EP 10737026A EP 2456569 B1 EP2456569 B1 EP 2456569B1
Authority
EP
European Patent Office
Prior art keywords
glue
outlet openings
nozzle plate
workpiece
workpieces
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP10737026.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2456569A1 (de
Inventor
Marco Daher
Ralf Klang
Andreas Lamkemeyer
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 PL10737026T priority Critical patent/PL2456569T3/pl
Publication of EP2456569A1 publication Critical patent/EP2456569A1/de
Application granted granted Critical
Publication of EP2456569B1 publication Critical patent/EP2456569B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B05B15/555—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 discharged by cleaning nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0208—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles
    • B05C5/0212—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles only at particular parts of the articles

Definitions

  • the invention relates to a device for providing workpieces or webs with glue according to the preamble of claim 1.
  • adhesions must be made in various production steps.
  • first the side edges of webs are wrapped and processed into a tube, wherein at least one side edge is acted upon with adhesive.
  • the tube is singulated into pieces of tubing, to which subsequently formed soils and / or other workpieces are attached.
  • the material of these sacks here paper and / or plastic, is provided with glue, often starch glue, so that different components of the later sacks can be joined together.
  • the gluing must be done according to a specified pattern in order not to cause unwanted gluing.
  • format parts have been used for this, which are fastened on rollers or which are designed like a roller and which are exposed to glue.
  • the glue is then delivered to the component to be glued according to the format.
  • the present invention is not limited to the production of paper bags or sacks, but can also be used in the processing of any workpieces or webs, especially in the field of packaging.
  • Such a device comprises a nozzle plate on which the workpieces or the webs along a transport direction are passed over. Most of the workpieces to be glued touch the nozzle plate. This has a first surface, which faces the workpieces to be glued.
  • the nozzle plate comprises a plurality of glue outlet 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 outlet openings.
  • Each glue valve can be assigned a single glue outlet opening or a group of glue outlet openings.
  • 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 first-mentioned patent application shows in its Figure 11 a structure of such a device, but in which the nozzle plate between the first plane or the first surface on which the workpieces or the web are passed, and seen in the transport direction of the workpieces or the web rear, second surface is provided approximately a right angle. As can be seen, the edge between the two surfaces has a chamfer.
  • the object of the present invention is therefore to improve the described device so that the quality of the bags produced therewith is improved.
  • the object is achieved by a device which comprises in addition to the preamble features of claim 1 and its characterizing features. Accordingly, it is provided that the first surface and the second surface at an angle to each other, which is smaller than 90 degrees.
  • the first surface is the surface on which the workpiece to be provided with glue or the web can be guided past. This first surface is thus facing the workpiece or the web.
  • the second surface is a surface arranged on the rear end seen in the transport direction of the workpieces or the web and does not touch the workpiece. Both surfaces can be connected by a common edge, which often represents a so-called trailing edge, at which the workpiece loses contact with the nozzle plate.
  • the second surface may be followed by other surfaces, in particular one which is perpendicular to the first surface.
  • an area set back relative to the spoiler edge ie a free space
  • the edge that is to say the transitional area between the first and the second surface, can be designed in various ways.
  • a chamfer may also be provided with a rounding or a small intermediate surface, these being very small in their extent with respect to the surfaces mentioned.
  • the angle between said first surface and said second surface is preferably substantially less than 90 degrees, for example 45 degrees.
  • a projection which may also be referred to as nose, provided at the rear edge of the nozzle plate.
  • a further advantage of the invention is that deposits less dirt particles on the side facing away from the workpieces, since the potential contact surface for the glue is now smaller. Glue accumulations grow thereby slower than those in devices of the prior art.
  • the glue outlet openings are arranged in the transition region between the two surfaces. If, for example, this transition region is designed as a chamfer, the glue outlet openings can open at least partially in this chamfer. In other words, the glue outlet openings are arranged directly on the tip of the projection or the nose. In order to it is achieved that the glue after leaving the glue outlet openings as possible no longer comes into contact with the nozzle plate. Thus, the rate of growth of the glue pool is significantly reduced, which greatly restrains the number of low-quality bags or, with regular cleaning of the device, reduces the number of breaks in production for the purpose of cleaning.
  • the end regions of the feed lines which supply the glue to the glue outlet openings are arranged at an acute angle to the surface region with which the workpiece or the web can be guided (guide surface).
  • This angle can, for example, approximately halve the angle between the two surfaces, ie between the guide surface and the projection or nose bridge surface.
  • the second surface is at least partially provided with a coating.
  • a non-stick coating is provided.
  • Non-stick materials that can be used at this point are known.
  • PTFE known under the brand name "Teflon”
  • Teflon can be provided if the glue is a water-based glue.
  • PTFE is strongly hydrophobic. The advantage here is that the sticking tendency of the glue on this surface is greatly reduced by this measure, so that per unit of time even less glue adheres.
  • Another advantageous embodiment of the invention comprises further media outlet openings which are arranged in the region of the undercut and which are directed onto the surface of the undercut facing away from the workpieces.
  • the media outlet openings can also be arranged in the nozzle plate.
  • even independent media lines with media outlets are conceivable.
  • the cleaning of the nozzle plate of glue collections is now greatly simplified. This leads to an acceleration of the cleaning process, so that the time period for a cleaning cycle is shortened, which increases the productivity of the device.
  • these media outlet openings can be acted upon by medium lines with medium.
  • the exit direction can therefore be directed directly onto the side of the projection which faces away from the workpieces, that is to say the second surface.
  • the direction may also be directed to an adjacent surface, so that the medium is deflected when hitting the rear surface.
  • the medium can get between the second surface and the glue accumulation adhering to it, so that the Leimansammlung is detached.
  • valves are arranged in the media lines, with which the media flow can be produced and interrupted.
  • the medium is exposed to a higher pressure than the ambient pressure.
  • valves so effective cleaning can be achieved.
  • Fig. 1 and Fig. 2 show a device 1 for providing flat workpieces or webs with glue.
  • these are, for example, pieces of hose 2.
  • webs are used to form hoses along Longitudinal seams provided with glue.
  • Hose pieces may be provided with glue, for example, to glue on or stick on valve leaflets, inner latches or ground cover sheets. Also, the bonding of floor flaps done (so-called soil bonding). Even in the production of bags, 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-up end does not yield back, the back of the surface is supported by an abutment 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 the 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, ie 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 surface 13 can also be regarded as limited in the transport direction x by the lines A and B.
  • the lines are in the FIG. 1 out of the drawing plane so that they are only recognizable as dots in the figure.
  • the rear, second surface 18 is in the FIG. 1 bounded by the lines B and C.
  • the surfaces 13 and 18 enclose an angle ⁇ which may be between 0 and 90 degrees, for example at 45 degrees.
  • the line C stands on the drawing level and can be like the lines A and B in the FIG. 1 only be shown as a dot.
  • the invention can also be defined in another way. Thereafter, as seen in the transport direction x, the line C is arranged in front of the line B.
  • 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 deserves special attention. This runs obliquely in the transport direction of the hose pieces 2, where they exactly in the edge 15, which connects the surfaces 13 and 15, opens.
  • the angle of the glue line 22 is advantageously as large as the angle between the surface 13 and the bisector between the surfaces 13 and 18.
  • the axis of the glue line can lie on or parallel to said bisecting line.
  • the advantageous embodiment of the gluing head described in the two preceding paragraphs combines further advantages in itself:
  • the described undercut 14 allows the glue, which is not taken along by the hose piece 2, to collect on the rear surface 18, so that the probability of this glue accumulation is taken by a contact with a piece of tubing 2 and so leads to contamination, is reduced.
  • the described arrangement of the glue outlet openings 23 also contributes to the fact that the leaked glue barely makes contact with the outer surfaces of the gluing head 9 so that the glue does not adhere to these surfaces. The amount of glue that collects on the gluing head is thus greatly reduced.
  • the accumulating glue can be removed from time to time.
  • 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 described embodiment shows a device with which the contamination of the tube pieces 2 is greatly reduced and can be easily cleaned.

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  • Coating Apparatus (AREA)
EP10737026.4A 2009-07-24 2010-07-22 Vorrichtung zum versehen von werkstücken oder bahnen mit leim Active EP2456569B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10737026T PL2456569T3 (pl) 2009-07-24 2010-07-22 Urządzenie do nakładania kleju na element lub pas

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009034686A DE102009034686B3 (de) 2009-07-24 2009-07-24 Vorrichtung zum Versehen von Werkstücken oder Bahnen mit Leim
PCT/EP2010/060639 WO2011009914A1 (de) 2009-07-24 2010-07-22 Vorrichtung zum versehen von werkstücken oder bahnen mit leim

Publications (2)

Publication Number Publication Date
EP2456569A1 EP2456569A1 (de) 2012-05-30
EP2456569B1 true EP2456569B1 (de) 2015-07-08

Family

ID=42732834

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10737026.4A Active EP2456569B1 (de) 2009-07-24 2010-07-22 Vorrichtung zum versehen von werkstücken oder bahnen mit leim

Country Status (5)

Country Link
EP (1) EP2456569B1 (pl)
DE (1) DE102009034686B3 (pl)
ES (1) ES2548388T3 (pl)
PL (1) PL2456569T3 (pl)
WO (1) WO2011009914A1 (pl)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017207851B4 (de) 2017-05-10 2023-02-16 Audi Ag Vorrichtung und Verfahren zum Auftragen von flüssigem Klebstoff

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018127277A1 (de) * 2018-10-31 2020-04-30 Illinois Tool Works Inc. Düsenanordnung und system zum auftragen von fluiden auf ein substrat sowie ein entsprechendes verfahren
CN115007518B (zh) * 2022-06-01 2024-12-27 上海慧纤电子科技有限公司 一种rfid电子设备制造用生产线

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6268569A (ja) * 1985-09-20 1987-03-28 Meiji Kikai Seisakusho:Kk 接着剤塗付具
US5067432A (en) * 1990-05-23 1991-11-26 Extrusion Dies, Inc. Replaceable wiping insert for slot die head
US5540801A (en) * 1992-02-28 1996-07-30 Nordson Corporation Apparatus for forming core layers for plywood
US6419747B1 (en) * 1999-02-26 2002-07-16 The Procter & Gamble Company Extrusion die
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
DE10309893B4 (de) * 2002-09-13 2019-05-23 Windmöller & Hölscher Kg Bodenlegevorrichtung für Papiersäcke sowie Verfahren zum Betrieb einer Bodenlegevorrichtung
DE10330751A1 (de) * 2003-07-07 2005-02-10 Windmöller & Hölscher Kg Bodenlegevorrichtung für Papiersäcke
DE10330750B4 (de) * 2003-07-07 2005-09-15 Windmöller & Hölscher Kg Bodenlegevorrichtung für Papiersäcke
DE102004002421A1 (de) * 2004-01-16 2005-08-18 Atotech Deutschland Gmbh Düsenanordnung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017207851B4 (de) 2017-05-10 2023-02-16 Audi Ag Vorrichtung und Verfahren zum Auftragen von flüssigem Klebstoff

Also Published As

Publication number Publication date
ES2548388T3 (es) 2015-10-16
DE102009034686B3 (de) 2010-12-09
EP2456569A1 (de) 2012-05-30
PL2456569T3 (pl) 2015-12-31
WO2011009914A1 (de) 2011-01-27

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