EP0272559B1 - Procédé pour décoller un revêtement collé et dispositif pour réaliser le procédé - Google Patents

Procédé pour décoller un revêtement collé et dispositif pour réaliser le procédé Download PDF

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Publication number
EP0272559B1
EP0272559B1 EP87118399A EP87118399A EP0272559B1 EP 0272559 B1 EP0272559 B1 EP 0272559B1 EP 87118399 A EP87118399 A EP 87118399A EP 87118399 A EP87118399 A EP 87118399A EP 0272559 B1 EP0272559 B1 EP 0272559B1
Authority
EP
European Patent Office
Prior art keywords
covering
nozzle
substrate
detaching
needle
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.)
Expired - Lifetime
Application number
EP87118399A
Other languages
German (de)
English (en)
Other versions
EP0272559A1 (fr
Inventor
Josef Theo Dr. Hein
Herbert Dittmar
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.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
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 Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Priority to AT87118399T priority Critical patent/ATE60284T1/de
Publication of EP0272559A1 publication Critical patent/EP0272559A1/fr
Application granted granted Critical
Publication of EP0272559B1 publication Critical patent/EP0272559B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44D—PAINTING OR ARTISTIC DRAWING, NOT OTHERWISE PROVIDED FOR; PRESERVING PAINTINGS; SURFACE TREATMENT TO OBTAIN SPECIAL ARTISTIC SURFACE EFFECTS OR FINISHES
    • B44D3/00—Accessories or implements for use in connection with painting or artistic drawing, not otherwise provided for; Methods or devices for colour determination, selection, or synthesis, e.g. use of colour tables
    • B44D3/16—Implements or apparatus for removing dry paint from surfaces, e.g. by scraping, by burning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44C—PRODUCING DECORATIVE EFFECTS; MOSAICS; TARSIA WORK; PAPERHANGING
    • B44C7/00—Paperhanging
    • B44C7/02—Machines, apparatus, tools or accessories therefor
    • B44C7/027—Machines, apparatus, tools or accessories for removing wall paper
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G23/00—Working measures on existing buildings
    • E04G23/006—Arrangements for removing of previously fixed floor coverings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10S156/918—Delaminating processes adapted for specified product, e.g. delaminating medical specimen slide
    • Y10S156/929—Delaminating component from building, e.g. wall paper, shingle
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/11—Methods of delaminating, per se; i.e., separating at bonding face
    • Y10T156/1168—Gripping and pulling work apart during delaminating
    • Y10T156/1179—Gripping and pulling work apart during delaminating with poking during delaminating [e.g., jabbing, etc.]
    • Y10T156/1184—Piercing layer during delaminating [e.g., cutting, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/19—Delaminating means
    • Y10T156/1961—Severing delaminating means [e.g., chisel, etc.]
    • Y10T156/1967—Cutting delaminating means
    • Y10T156/1972—Shearing delaminating means

Definitions

  • the invention is directed to a method for detaching a covering which has a closed surface and is glued to a substrate with the aid of a detaching liquid which emerges airlessly from nozzles under high pressure. Furthermore, the invention is directed to a device with nozzles which release air-free release liquid under high pressure for removing a covering which has a closed surface and is bonded to a substrate.
  • Glued coverings with a closed surface can only be removed with difficulty, especially in the case of heavy versions.
  • the group of these coverings includes wallpaper-like wall coverings consisting of PVC foam plastic; PVC films with fabric backing; plucking, jute and glass fiber fabrics coated with silicate paints or emulsion paints or lacquer paints; Woodchip with multiple coats of emulsion paint; Elephant skin-protected wallpaper and ceiling panels made of foamed polystyrene.
  • Such coverings can be removed by steam jet devices, by planing, with the aid of a spatula and manual repulsion by the centimeter, by pretreating the cover with a nail roller and / or by wetting with a wallpaper stripper. Exposed adhesive residues can also be softened and removed by brushing with a paint remover.
  • a method of the type mentioned is known from DE-B-25 52 611.
  • the covering to be detached is mechanically destroyed in some areas, for example cut into strips, by means of a device which has flat jet nozzles and from which the detaching liquid is dispensed. These individual areas, for example the strips, of the covering are then easier to remove than the entire covering. It can also be provided that the working fluid jet already lifts the covering to be removed. This way of working is labor-intensive, time-consuming and in particular accompanied by a considerable amount of dirt.
  • the invention has for its object to provide a method and an apparatus which make it possible to soften or detach the connection means between the covering and the subsurface in the present context, for the sake of simplicity, even in the case of a heavy covering with a closed surface, in such a way that the covering can be removed by pulling off or pushing off with the help of a spatula.
  • this object is achieved according to the invention in that the release liquid is injected in pulses with the aid of at least one needle nozzle through the covering into the adhesive joint between the covering and the substrate.
  • the adhesive located in the adhesive joint between the covering and the substrate is to be softened or dissolved or chemically decomposed before the mechanical separation of the covering, because the pure, airless release liquid is under sufficient pressure to penetrate the covering, e.g. B. under 100 to 400 bar, is pressed directly into the adhesive joint.
  • Airless piston or diaphragm pumps can be used to pump the release liquid at high pressure. The depth of penetration of the release liquid is therefore adjusted by changing the pressure at the inlet of the nozzle.
  • the process is particularly effective with a slightly viscous release liquid, which improves the removal of the covering from the surface (wedge effect).
  • the object is achieved according to the invention in that it injects at least one detaching liquid into the adhesive joint between the substrate and the covering with a needle-like valve by pressing the needle nozzle against the covering to be detached with a pressure line of the detaching liquid, in particular a nozzle opening about 0.3 mm in diameter, which is surrounded by a concave hollow shell to be placed on the covering.
  • the result of the hollow shell is that the release liquid possibly present at the nozzle opening with high pressure can also be pressed through a dense and heavy covering.
  • a cutting ring, an O-ring, in particular made of rubber, or a flat gasket is expediently used to seal the hollow shell.
  • a practical design of the device for pressing the release liquid into the adhesive joint between the covering and the substrate is created when the needle nozzle at the end of a cavity that is movably guided in a cylinder against a spring force possessing nozzle piston and the cavity has a cross hole to be switched by pressing the nozzle piston against the spring force on the pressure line of the release liquid.
  • This nozzle piston is to be guided with a precise fit, for example in a slotted cylinder, in order on the one hand to exactly meet the connection of the piston to the pressure line of the release liquid and on the other hand to prevent squeezing out of release liquid through the piston / cylinder seal.
  • the movable nozzle is pressed into the cylinder by pressing such a device onto the surface carrying the covering to be removed.
  • the cross sections of the connection between the piston cavity and the pressure line of the release liquid opening into the cylinder are covered and the release liquid shoots into the coating with high pressure.
  • a recoil is exerted on the device, which pushes the device away from the wall, so that the piston is pushed out of the cylinder again by the spring force acting on it and thus the liquid supply is interrupted.
  • the device is immediately ready for the next injection.
  • two or more needle nozzles can also be arranged linearly or areally on a carrier element designed as a hollow body connected to a pressure line of the release liquid.
  • the operator only needs to apply the force necessary to guide the device and to push the nozzle (open the nozzle against a spring).
  • the force required to press the release liquid into the adhesive joint is supplied by the connected pump due to the high liquid pressure.
  • the carrier element carrying one or more needle nozzles can also be resiliently suspended as a larger machine in a roller box, wherein a mechanism, in particular cam mechanism, which periodically lowers the carrier element when the box is advanced, is provided and controlled by the roller.
  • the suspension of the carrier element should be adjusted so that it pulls the carrier element upwards into the roller box in the rest position.
  • the wheels are to be coupled to the lowering mechanism of the carrier element in such a way that when the roller box is pushed, the carrier element is periodically lowered in such a way that the nozzles are pressed abruptly against the covering.
  • the associated pressing of the nozzles on the substrate triggers an injection of detachment liquid.
  • the needle nozzle denoted overall by 1 in FIG. 1 is designed as a movable hollow nozzle piston 2 with a cavity 4 leading to the nozzle opening 3.
  • the cavity 4 has a transverse bore 5 which, when the nozzle is moved in the direction of the arrow 6, is to be covered with a pressure line 7 transporting a release liquid.
  • Reliable guidance with elastic restoring force of the nozzle piston 2 is obtained when the piston 2 is guided in a cylinder 8 with a spring 11 acting therein with a spring 11 acting on the inner piston surface 10 facing the cylinder interior 9.
  • the sealing of the line 7, which is under a pressure of, for example, 200 to 400 bar, with respect to the piston 2 or the cylinder interior 9 becomes particularly stable when the line 7 in the form of a precisely fitting socket 12 is brought up to the, for example, cylindrical surface of the nozzle piston 2.
  • a seal 14 designed as a connecting piece 13 to a handle or the like is provided on the circumference of the nozzle piston 2.
  • This seal 14 is intended to enclose the body of the nozzle 1 with a precise fit.
  • the underside of the nozzle 1 which is to be faced with the covering to be removed should be designed as a hollow shell 15 in order to ensure that the release liquid is pressed into the covering in a targeted manner.
  • a cutting ring 16 is provided as a seal for the hollow shell and an O-ring, e.g. made of rubber, or a surface seal.
  • FIG. 2 shows a section through a hand-held device equipped with a plurality of needle nozzles 1.
  • the nozzles 1 are arranged linearly and / or flatly on a carrier element 17 of this device having a handle 18.
  • the carrier element 17 is designed as a hollow body, and its cavity is provided with a connection 19 for a high-pressure feed line of a pump which provides the release liquid.
  • the nozzles 1 movable in the direction of the arrow 6 are pressed into the carrier element 17.
  • Characterized valves of the nozzles 1 are opened to the pressurized cavity of the support member 17, for example the transverse bores come 5 of the nozzle 1 and the leads 7 (shown in FIG. I) is intended to cover, then shoots the under 'pressurized, airless conveyed stripping liquid in or by the covering to be removed.
  • This "shot” results in a recoil to the device, which moves the device (against the force of the operator) away from the pad. This in turn pushes the nozzle forward by the spring 11, the liquid supply is interrupted and the device is ready for the next shot.
  • FIG. 3 shows a device designed as a machine to be pushed on the floor for detaching a glued floor covering with the aid an airless and impulsive release liquid to be pressed through needle nozzles into the adhesive joint between the covering and the substrate.
  • the entire support element 17 (cf. FIG. 2) is suspended in a roller box 20 in a resilient manner, for example on leaf springs 21 shown symbolically.
  • the roller box 20 has rollers 22.
  • On the underside of the carrier element 17 there are between the rollers 22 nozzles 1 with a vertically downwardly directed nozzle opening 3.
  • Above the carrier element 17 there is provided a cam mechanism symbolically indicated by an eccentric 23, which is directly via a friction wheel 24 is coupled to a roller 22 of the roller box 20.
  • the weight of the roller box 20 can be predetermined by the choice of material. When used in the floor area, the roller box can be weighted down with a water tank or the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Electroluminescent Light Sources (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Pens And Brushes (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Pinball Game Machines (AREA)

Claims (10)

1. Procédé pour décoller un revêtement, comportant une partie superficielle compacte et étant collé sur un support, au moyen d'un liquide dissolvant sortant sans air et sous haute pression de buses, caractérisé par le fait que le liquide dissolvant est injecté par impulsions à travers le revêtement dans le joint collé situé entre ce revêtement et le fond de support, à l'aide d'au moins une buse à pointeau (1).
2. Procédé selon la revendication 1, caractérisé par le fait que la pression du liquide dissolvant à l'entrée de la buse à pointeau (1) est réglée aux environs de 100 à 400 bars.
3. Procédé selon l'une des revendications 1 ou 2, caractérisé par le fait que l'on utilise une buse à pointeau ayant une ouverture de buse d'un diamètre d'environ 0,3 mm.
4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé par le fait que le liquide dissolvant est rendu visqueux avant son injection sous pression dans le joint collé.
5. Dispositif comportant des buses diffusant, sans air et sous haute pression, un liquide dissolvant pour décoller un revêtement comportant une partie superficielle compacte et étant collé sur un support, caractérisé par le fait qu'il comporte au moins une buse à pointeau (1) pour injecter le liquide dissolvant dans le joint collé situé entre le fond de support et le revêtement, cette buse ayant une ouverture de buse (3), notamment d'un diamètre d'environ 0,3 mm, à mettre en communication, par pression de la buse à pointeau sur le revêtement à décoller, avec une conduite sous pression (7) du liquide dissolvant, cette ouverture étant entourée par une cuvette percée concave (15) à appliquer sur le revêtement.
6. Dispositif selon la revendication 5, caractérisé par le fait que l'étanchéité de la cuvette percée (15) est assurée par une bague coupante (16), un joint torique, notamment en caoutchouc, ou par une garniture superficielle.
7. Dispositif selon l'une des revendications 5 ou 6, caractérisé par le fait que la conduite sous pression (7) est reliée à une pompe à pression, notamment une pompe à membrane ou à piston, refoulant sans air à une pression de 200 à 400 bars.
8. Dispositif selon l'une quelconque des revendications 5 à 7, caractérisé par le fait que la buse à pointeau (1) est montée à l'extrémité d'un piston de buse (2) comportant une chambre en creux (4) et pouvant être déplacé en agissant contre la force d'un ressort (11) situé à l'intérieur d'un cylindre (8), la chambre en creux (4) comportant un perçage transversal (5) à mettre en communication, en pressant le piston de buse contre la force de ressort, avec la conduite sous pression (7) à liquide dissolvant.
9. Dispositif selon l'une quelconque des revendications 5 à 8, caractérisé par le fait que deux ou plusieurs buses à pointeau (1) sont disposées en ligne ou uniformément sur un élément de support (17) sous forme d'un corps creux raccordé à la conduite sous pression (19) à liquide dissolvant.
10. Dispositif selon la revendication 9, caractérisé par le fait que l'élément de support (17) est suspendu de façon élastique à l'intérieur d'un caisson roulant (20) et que l'on prévoit un mécanisme, notamment un mécanisme à excentrique commandé et entraîné par les roulettes du caisson, pour abaisser l'élément de support (17) périodiquement lorsque le caisson est avancé.
EP87118399A 1986-12-19 1987-12-11 Procédé pour décoller un revêtement collé et dispositif pour réaliser le procédé Expired - Lifetime EP0272559B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87118399T ATE60284T1 (de) 1986-12-19 1987-12-11 Verfahren zum abloesen eines geklebten belags und vorrichtung zum durchfuehren des verfahrens.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863643446 DE3643446A1 (de) 1986-12-19 1986-12-19 Verfahren zum abloesen eines geklebten belags und vorrichtung zum durchfuehren des verfahrens
DE3643446 1986-12-19

Publications (2)

Publication Number Publication Date
EP0272559A1 EP0272559A1 (fr) 1988-06-29
EP0272559B1 true EP0272559B1 (fr) 1991-01-23

Family

ID=6316593

Family Applications (2)

Application Number Title Priority Date Filing Date
EP87118399A Expired - Lifetime EP0272559B1 (fr) 1986-12-19 1987-12-11 Procédé pour décoller un revêtement collé et dispositif pour réaliser le procédé
EP88900019A Pending EP0295274A1 (fr) 1986-12-19 1987-12-11 Procede et dispositif de decollage de revetements colles

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP88900019A Pending EP0295274A1 (fr) 1986-12-19 1987-12-11 Procede et dispositif de decollage de revetements colles

Country Status (8)

Country Link
US (1) US4904329A (fr)
EP (2) EP0272559B1 (fr)
AT (1) ATE60284T1 (fr)
DE (2) DE3643446A1 (fr)
DK (1) DK417188A (fr)
ES (1) ES2019616B3 (fr)
FI (1) FI883593A (fr)
WO (1) WO1988004617A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3820256A1 (de) * 1988-06-14 1989-12-28 Wagner Gmbh J Vorrichtung zum anloesen der kleberschicht festgeklebter wand- und bodenbelaege
FR2660882B1 (fr) * 1990-04-12 1992-08-07 Aerospatiale Procede et dispositif pour separer un film adherent d'un support rigide.
FR2660881B1 (fr) * 1990-04-12 1992-08-07 Aerospatiale Outil de penetration pour separer un film adherent d'un support.
GB9018206D0 (en) * 1990-08-18 1990-10-03 Gwilliam Graham J Asbestos encapsulation
JP3408000B2 (ja) * 1994-11-28 2003-05-19 菱電セミコンダクタシステムエンジニアリング株式会社 ペリクル剥離方法
US6692612B1 (en) 1999-04-16 2004-02-17 Michael Spratling Adhesive removal compositions and methods of using same
GB2499064B (en) * 2012-08-13 2014-01-01 Irfan Ali Fazal Apparatus for removing wallcoverings
CN109051211A (zh) * 2018-08-01 2018-12-21 天津安光油墨厂有限公司 一种油墨储存装置

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU56941A1 (fr) * 1968-09-23 1969-01-04
US3698976A (en) * 1971-03-19 1972-10-17 Itt Method for sorting die
US3920185A (en) * 1974-08-29 1975-11-18 Rippingille Jr Edward V Fluid oscillator with feedback and pulsating shower head employing same
DE2552611C2 (de) * 1975-11-24 1977-05-12 Hutterer, Peter, 8000 München Vorrichtung zum Entfernen alter Schmutz-, Leimfarben- und Binderfarbenschichten an Decken und Wänden, sowie zum Loslösen von Tapeten
LU76557A1 (fr) * 1977-01-12 1977-06-17
SE444101B (sv) * 1982-09-17 1986-03-17 Holmstrands Plaatindustri Ab Sett vid behandling av monsterkort med atervinning av losningsmedel och anordning for genomforandet av settet
US4466852A (en) * 1983-10-27 1984-08-21 At&T Technologies, Inc. Method and apparatus for demounting wafers
JPH0737199B2 (ja) * 1985-04-02 1995-04-26 株式会社ジェイエスイー 表面の付着物除去方法
DE3686236T2 (de) * 1985-11-12 1993-03-25 Somar Corp Vorrichtung zur entfernung von auf platinen aufgeklebten folien.
DE8617622U1 (de) * 1986-07-02 1986-10-16 Witte, Michael, Dipl.-Oec., 4720 Beckum Vorrichtung zum Entfernen von Bodenbelägen

Also Published As

Publication number Publication date
DE3643446A1 (de) 1988-06-30
ES2019616B3 (es) 1991-07-01
EP0272559A1 (fr) 1988-06-29
FI883593A0 (fi) 1988-08-01
ATE60284T1 (de) 1991-02-15
WO1988004617A1 (fr) 1988-06-30
DK417188D0 (da) 1988-07-25
DE3767686D1 (de) 1991-02-28
FI883593A (fi) 1988-08-01
EP0295274A1 (fr) 1988-12-21
DK417188A (da) 1988-07-25
US4904329A (en) 1990-02-27

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