EP0403804B1 - Einrichtung zum Innenbeschichten von Hohlräumen - Google Patents

Einrichtung zum Innenbeschichten von Hohlräumen Download PDF

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Publication number
EP0403804B1
EP0403804B1 EP90109488A EP90109488A EP0403804B1 EP 0403804 B1 EP0403804 B1 EP 0403804B1 EP 90109488 A EP90109488 A EP 90109488A EP 90109488 A EP90109488 A EP 90109488A EP 0403804 B1 EP0403804 B1 EP 0403804B1
Authority
EP
European Patent Office
Prior art keywords
positioning stop
nozzle
spray
spray gun
contact
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
EP90109488A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0403804A1 (de
Inventor
Willy Dipl. Ing. Klingen
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.)
J Wagner GmbH
Original Assignee
J Wagner GmbH
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 J Wagner GmbH filed Critical J Wagner GmbH
Publication of EP0403804A1 publication Critical patent/EP0403804A1/de
Application granted granted Critical
Publication of EP0403804B1 publication Critical patent/EP0403804B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/06—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies
    • B05B13/0627—Arrangements of nozzles or spray heads specially adapted for treating the inside of hollow bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
    • B05B12/12—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus
    • B05B12/122—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus responsive to presence or shape of target

Definitions

  • the invention relates to a device for the interior coating of cavities, in particular an automobile body according to the preamble of claim 1.
  • a device for the interior coating of cavities in particular an automobile body according to the preamble of claim 1.
  • Such a device is known from EP 140 017.
  • spray probes are detachably attached to a spray gun.
  • the spray probes are stored in a holder with several receptacles and are removed by the worker as required and attached to the spray gun.
  • Each holder in the spray probe holder is assigned a holder and an indicator lamp which lights up when the corresponding spray probe has been removed from the holder.
  • there is a symbol display panel with associated lights which is connected by lines to the spray probe holder and a control unit and on which the respective spray position of the corresponding spray probe is displayed, the lights illuminating when the corresponding lamp on the spray probe holder lights up when the spray probe is removed.
  • a spray shot is only triggered when the spray probe is correctly inserted into the cavity to be coated with respect to the direction of insertion.
  • it is also checked whether the spray probe is correctly and liquid-tightly attached to the spray gun before the trigger mechanism is released for the spray shot.
  • 10 denotes a spray gun and 11 a spray probe detachably attached to it.
  • the spray gun 10 has a handle 12, a protective bracket 13, a liquid channel 14 with valve 14a and a compressed air duct 15.
  • the spray gun 10 is provided with a liquid-tight mechanical plug-in coupling 16 for receiving the spray probe 11.
  • a proximity switch 17 Immediately next to the plug-in coupling 16 is a proximity switch 17.
  • the nozzle probe 11 has a nozzle tube 18, the rear end of which is designed as a plug-in insert 19 for insertion into the opening of the coupling 16, and the front end of which is provided with nozzle openings 20.
  • a positioning stop 21 is fastened to the nozzle tube 18, the shape of the surface shape of the wall 22 delimiting the cavity H to be coated (indicated by dash-dotted lines in the drawing) in the region around the insertion opening 23 for the nozzle tube 18 .
  • a double-arm lever 24 is pivotably articulated, one end of which, as a contact sensor, engages through an opening in the positioning stop 21, and the other end of which is connected to a Bowden cable 25.
  • the other end of the Bowden cable 25 is operatively connected to a sleeve 26 which coaxially surrounds the nozzle tube 18 and can be pushed back and forth to a limited extent in the axial direction, the sleeve 26 being loaded by a helical spring 27 in the direction of displacement towards the end of the nozzle tube 18 on the nozzle opening side.
  • the arrangement is such that in the rest position shown in Figures 1 and 2, the spring 27 has shifted the sleeve 26 into its right end position, in which the contact sensor end 24a of the lever 24 protrudes slightly beyond the front of the positioning stop 21 and in which the rear end edge 26a of the sleeve 26 is removed from the proximity switch 17 of the spray gun 10.
  • the spray gun 10 with attached nozzle probe 11 approximates the cavity to be coated and the front end of the nozzle tube 18 is inserted into the cavity through the opening 23 of the wall 22, then the positioning stop 21 finally lies against the outer surface 22a of the wall 22, which then places the nozzle openings 20 at the desired location on the wall Cavity H are located and also take the desired direction position.
  • the contact sensor end 24a of the lever 24 When pressing the positioning stop 21 against the outer surface 22a, the contact sensor end 24a of the lever 24 is pressed in, ie the lever 24 is pivoted counterclockwise by a predetermined angle, with the result that the sleeve 26 against the force of the spring is above the Bowden cable 25 27 is shifted to the left, the end edge 26a of the sleeve 26 then damping the proximity switch 17 at the end of the displacement path.
  • the proximity switch 17 thus emits a switching signal, which is used to release the spray shot triggering. This can take place, for example, in such a way that the valve 14a of the liquid line 14 is a solenoid valve which is controlled indirectly or directly by the proximity switch 17, that is to say it opens by the switching signal mentioned and releases the spray shot.
  • the valve is closed again after a preselected time by means of a conventional timer circuit.
  • the spray shot is triggered automatically without the worker actuating a trigger guard.
  • the spray gun with a trigger bracket that can be actuated by the worker and, for example, an electromagnetic trigger lock, which only allows the trigger bracket to be pulled through when the proximity switch 17 has emitted its switching signal.
  • it can also be carried out in such a way that although pulling the trigger guard is necessary to open the valve 14a, the valve only opens when it is controlled by the switching signal of the proximity switch 17.
  • the proximity switches 17 directly represent the contact sensors.
  • proximity switches 17 are accommodated at the free mouth end of tubes 31, which lead to the insertion end of the nozzle tube 18 and at the same time as receptacles for the proximity switches 17 and as stabilizers for the positioning stop 21 serve.
  • the proximity switches 17 penetrate openings in the positioning stop 21 in such a way that their contact surface is flush with the front surface of the positioning stop 21.
  • the electrical lines of the proximity switches 17 lead in the stabilizer tubes 31 into the area of the nozzle tube 18 and are in conductive connection there with contact rings 32, which are located on the surface of a contact cylinder coaxially surrounding the nozzle tube 18.
  • contact rings 32 which are located on the surface of a contact cylinder coaxially surrounding the nozzle tube 18.
  • the contact rings 32 a finger-like contactor 34 located next to the plug-in coupling 16 of the spray gun 10, so that when the spray probe 11 is plugged in there is a conductive connection between the proximity switches 17 and the spray gun 10.
  • the mode of operation can be understood from the description of the first exemplary embodiment. If the front surface of the positioning stop 21 lies on the outer surface of the cavity wall, then the proximity switches 17 transmit a switching signal to the spray gun, which releases the triggering of the firing shot. It is essential that the two proximity switches 17 are connected together in an AND circuit, that is, a switching signal is only passed on when both proximity switches 17 respond simultaneously, similar to the use of two proximity switches 17 in the first embodiment.
  • Fig. 5 shows a modification in which the proximity switch 17 is preceded by a small, spring-loaded contact pin 40 which extends through the opening of the positioning stop 21 and is loaded by its spring 41 so that its sensor end protrudes slightly beyond the front surface of the positioning stop 21.
  • the pin 40 is pushed back against the force of the spring 41 and then dampens the proximity switch 17 located behind it of the positioning stop on the outer wall of the cavity.
  • the mechanical (first exemplary embodiment) or electrical (second exemplary embodiment) “signal bridge” between the nozzle probe and spray gun is only closed when the nozzle probe is properly coupled to the spray gun; the device according to claim 8 thus also ensures that a spray shot can only be fired when the worker has properly coupled the spray probe.

Landscapes

  • Nozzles (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Spray Control Apparatus (AREA)
EP90109488A 1989-06-19 1990-05-18 Einrichtung zum Innenbeschichten von Hohlräumen Expired - Lifetime EP0403804B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3919959A DE3919959C1 (enExample) 1989-06-19 1989-06-19
DE3919959 1989-06-19

Publications (2)

Publication Number Publication Date
EP0403804A1 EP0403804A1 (de) 1990-12-27
EP0403804B1 true EP0403804B1 (de) 1994-01-05

Family

ID=6383036

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90109488A Expired - Lifetime EP0403804B1 (de) 1989-06-19 1990-05-18 Einrichtung zum Innenbeschichten von Hohlräumen

Country Status (5)

Country Link
US (1) US5046450A (enExample)
EP (1) EP0403804B1 (enExample)
JP (1) JPH0389967A (enExample)
DE (1) DE3919959C1 (enExample)
ES (1) ES2048357T3 (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD356855S (en) 1992-09-28 1995-03-28 J. Wagner Gmbh Spray gun
RU2260477C2 (ru) * 2003-05-27 2005-09-20 Общество с ограниченной ответственностью "Фирма "Мангуста" Головка распыления и способ нанесения покрытия на внутреннюю поверхность полостей конструкции (варианты)
US11950677B2 (en) 2019-02-28 2024-04-09 L'oreal Devices and methods for electrostatic application of cosmetics
CN119406609A (zh) * 2024-11-11 2025-02-11 嵊州创益厨卫光电有限公司 一种厨卫灯的密封加工设备

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2337709A (en) * 1942-08-01 1943-12-28 Int Harvester Co Coating apparatus
US2604872A (en) * 1948-04-26 1952-07-29 Pacific Clay Products Apparatus for spraying fluid into tubular members
US2814083A (en) * 1955-01-27 1957-11-26 United States Pipe Foundry Mold coating apparatus
BE755695A (fr) * 1969-09-03 1971-03-03 Carrier Engineering Co Ltd Appareil et procede pour revetir des surfaces a l'aide d'un pistolet depulverisation
DE2526702A1 (de) * 1975-06-14 1976-12-23 Volkswagenwerk Ag Spruehduese, insbesondere zur hohlraumkonservierung
SE422282B (sv) * 1975-12-18 1982-03-01 Atlas Copco Ab Sprutpistol
DE3004495A1 (de) * 1980-02-07 1981-08-13 Daimler-Benz Ag, 7000 Stuttgart Anordnung zum innenbeschichten von hohlraeumen
JPS5992054A (ja) * 1982-11-19 1984-05-28 Tokico Ltd センサユニツト
DE3331784A1 (de) * 1983-09-02 1985-03-21 J. Wagner Gmbh, 7990 Friedrichshafen Einrichtung zum behandeln von hohlraeumen

Also Published As

Publication number Publication date
ES2048357T3 (es) 1994-03-16
EP0403804A1 (de) 1990-12-27
US5046450A (en) 1991-09-10
JPH0389967A (ja) 1991-04-15
DE3919959C1 (enExample) 1990-11-15

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