WO2000010730A1 - Bride de blocage pour la conduite d'alimentation d'un dispositif d'application de revetement en poudre - Google Patents

Bride de blocage pour la conduite d'alimentation d'un dispositif d'application de revetement en poudre Download PDF

Info

Publication number
WO2000010730A1
WO2000010730A1 PCT/EP1999/003965 EP9903965W WO0010730A1 WO 2000010730 A1 WO2000010730 A1 WO 2000010730A1 EP 9903965 W EP9903965 W EP 9903965W WO 0010730 A1 WO0010730 A1 WO 0010730A1
Authority
WO
WIPO (PCT)
Prior art keywords
spray coating
connecting pipe
coating device
rotation
hose
Prior art date
Application number
PCT/EP1999/003965
Other languages
German (de)
English (en)
Inventor
Karl Buschor
Original Assignee
Itw Gema Ag
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 Itw Gema Ag filed Critical Itw Gema Ag
Publication of WO2000010730A1 publication Critical patent/WO2000010730A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/16—Arrangements for supplying liquids or other fluent material
    • 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

Definitions

  • the invention relates to a spray coating device according to the preamble of claim 1.
  • a spray coating device of this type is known from EP 0 383 030 B1.
  • a hose for supplying coating powder is plugged onto a connecting pipe, which is screwed into a powder channel of the spray device.
  • An electrical low-voltage cable for supplying current to a high-voltage generator for an electrode housed in the spraying device for electrostatically charging the Coating powder is attached to the spray device by a bayonet catch, while its electrical wires, which are not shown in detail, are electrically connected in a known manner. 4 of this document, the powder hose and the low voltage cable are connected to the lower end of a pistol grip of the spray device.
  • the present invention is not limited to spray devices in the form of a pistol with a barrel and a hand grip, but also relates to spray devices which have no hand grip.
  • the coating material is atomized through a nozzle.
  • Another known type of atomization is the use of a rotating atomizer element.
  • the invention is not limited to powder spray coating devices, but can also be used for spray devices for liquid coating material.
  • the aim of the invention is to achieve the object of designing the spray device in such a way that its fluid channel (coating material channel and / or compressed air channel) can be easily and quickly connected and detached with a hose.
  • Fig. 1 shows the connection end of a
  • FIGS. 1 and 2 schematically shows a side view of a pistol-shaped spray coating device with connection elements according to FIGS. 1 and 2.
  • the spray coating device contains a powder channel 2 for powdery coating material, a compressed air channel 4 for compressed air for air circulation around one or more high-voltage electrodes 16 or for influencing the powder atomization, and a channel 6 for electrical conduction elements.
  • the channels 2, 4 and 6 are formed in parallel next to each other in a housing 8 made of electrically insulating material, preferably plastic.
  • a low-voltage cable 10 is detachably connected to the channel 6 for electrical elements by a quick-release lock, for example in the form of a bayonet lock 12, as described, for example, in EP 0 383 030 B1 is known.
  • the electrical wires of the low-voltage cable 10 are accommodated in the channel 6 in a known manner and connected to a high-voltage generator 14.
  • the high voltage generator 14 is shown schematically in the reduced illustration of FIG. 3 and generates a high voltage in the range between 10 kV and 140 kV for the at least one high voltage electrode 16 from the low voltage of the low voltage cable 10.
  • the high voltage generation and the supply of coating powder through the powder channel 2 can be switched on and off by a trigger 18 on a pistol grip 20.
  • the spray device is not a manual spray gun but an automatic spray gun without a handle 20
  • the switching on and off of the high electrical voltage and the supply of the coating powder takes place automatically depending on a program or manually by a control unit arranged remotely from the spray coating device.
  • a cap 22 is attached, in which the quick release or bayonet lock 12 is formed.
  • connection socket 28 is screwed into the cap 22 by a thread 30 and fastened in a rotationally fixed manner to an insert tube 32, which is inserted into a channel of the housing 8 and forms the powder channel 2.
  • a locking bracket 34 preferably made of spring steel, has formed from a single piece an annular part 36 and a locking finger 38 extending approximately tangentially away therefrom and, preferably, an actuating arm 40 for pivoting the locking bracket 34 about the axis of rotation 40 of its annular part 36.
  • the ring part 36 is attached from the front to a connecting pipe 42 of the low-voltage cable 10, which forms the axis of rotation 40.
  • the connecting pipe 42 has a forwardly pointing shoulder 44, the outer diameter of which is larger than the inner diameter of the ring part 36 and thereby limits the insertion depth of the ring part 36 onto the connecting pipe 42.
  • the locking bracket 34 By turning the locking bracket 34 about its axis of rotation 40, its locking finger 38 can be brought into or out of engagement with a recess 46, which is formed in the connecting tube 26 of the powder hose 24, depending on the direction of rotation.
  • the recess 46 has the shape of an annular groove around the connecting pipe 26 and is delimited at its front, downstream end by a radially projecting projection 48 pointing backwards, which has the shape of an annular rib surrounding the connecting pipe 26 and an integral part of this connecting pipe 26 is.
  • the end portion 50 of the locking finger 38 engages around the recess 46 by more than 90 ° with such a small radius that this end portion 50 forms a snap closure with the recess 46, which prevents the locking finger 48 from being swung out of the recess 46 unintentionally.
  • the snap lock between the locking finger 38 and the recess 46 is formed in that the end portion 50 of the locking finger 38 removed from the ring part 36 has a smaller radial distance from the axis of rotation 40 than the recess 46 and the locking finger 38 made of resilient material consists.
  • the locking finger 38 can be bent resiliently at its end section 50 so that it can snap "behind" the recess 46 by more than 90 °.
  • a compressed air hose 52 is attached to one end of a connecting pipe 54, the other end of which is screwed into a threaded bore 56 of the cap 22 in alignment with the compressed air channel 34.
  • This connecting pipe 54 of the compressed air hose 52 can be secured in the same way by a locking bracket 34, as was described with reference to the powder hose 24, but is not shown for the compressed air hose 52.
  • the connecting tube 42 of the low-voltage cable 10 can be inserted into a connection opening of the cap 22 or the housing 8 without a bayonet lock 12 and can be secured against unintentional loosening by a locking bracket corresponding to the locking bracket 34.
  • the axis of rotation 40 thereof can be formed by another element, for example by a connecting pipe of another hose or cable or by one cylindrical projection of the cap 22 or the housing 8, on which the ring portion 36 of the locking bracket 34 can be plugged.

Landscapes

  • Electrostatic Spraying Apparatus (AREA)

Abstract

L'invention concerne un dispositif d'application de revêtement en poudre qui comporte au moins un canal à fluide (2) destiné à un milieu pouvant s'écouler, par exemple de l'air, de la poudre de revêtement transportée pneumatiquement ou bien un liquide de revêtement, canal auquel peut être fixé, de façon amovible, un tube de raccordement (26) d'un tuyau flexible (24). Une bride de blocage (34) est disposée de façon à pouvoir tourner autour d'un axe de rotation (40) parallèle au canal à fluide (2) et comporte un doigt d'arrêt (38) qui peut, par rotation de la bride de blocage autour de l'axe de rotation, selon le sens de rotation, être engagé dans un évidement (46) du tube de raccordement (26) ou sorti dudit évidement.
PCT/EP1999/003965 1998-08-22 1999-06-09 Bride de blocage pour la conduite d'alimentation d'un dispositif d'application de revetement en poudre WO2000010730A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19838273A DE19838273A1 (de) 1998-08-22 1998-08-22 Sprühbeschichtungsvorrichtung
DE19838273.1 1998-08-22

Publications (1)

Publication Number Publication Date
WO2000010730A1 true WO2000010730A1 (fr) 2000-03-02

Family

ID=7878446

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/003965 WO2000010730A1 (fr) 1998-08-22 1999-06-09 Bride de blocage pour la conduite d'alimentation d'un dispositif d'application de revetement en poudre

Country Status (2)

Country Link
DE (1) DE19838273A1 (fr)
WO (1) WO2000010730A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10111697A1 (de) * 2001-03-09 2002-09-12 Itw Gema Ag Pulversprühpistole für Beschichtungspulver

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB222394A (en) * 1924-03-19 1924-10-02 George Hardman Improved coupling or union device for pipes, nozzles, taps and the like connections
DE1809166A1 (de) * 1967-11-24 1969-07-17 Gra Tec Inc Kupplungsglied
US3881753A (en) * 1973-06-04 1975-05-06 Michael E Bochory Fastener mechanism
GB2131118A (en) * 1982-11-30 1984-06-13 Teves Gmbh Alfred Brake hose line
EP0383030A1 (fr) * 1989-02-14 1990-08-22 ITW Gema AG Dispositif pulvérisateur pour le revêtement électrostatique par pulvérisation
EP0521776A1 (fr) * 1991-07-05 1993-01-07 Automobiles Peugeot Dispositif de raccordement de deux tuyaux à deux conduits, en particulier pour véhicule automobile
DE4432562A1 (de) * 1993-10-22 1995-04-27 Automotive Fluid Systems Inc Schnellverbindungs-Schwenkkupplung
US5507529A (en) * 1993-11-29 1996-04-16 Valeo Climatisation Rapid coupling device for tube members of a heat exchanger

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB222394A (en) * 1924-03-19 1924-10-02 George Hardman Improved coupling or union device for pipes, nozzles, taps and the like connections
DE1809166A1 (de) * 1967-11-24 1969-07-17 Gra Tec Inc Kupplungsglied
US3881753A (en) * 1973-06-04 1975-05-06 Michael E Bochory Fastener mechanism
GB2131118A (en) * 1982-11-30 1984-06-13 Teves Gmbh Alfred Brake hose line
EP0383030A1 (fr) * 1989-02-14 1990-08-22 ITW Gema AG Dispositif pulvérisateur pour le revêtement électrostatique par pulvérisation
EP0521776A1 (fr) * 1991-07-05 1993-01-07 Automobiles Peugeot Dispositif de raccordement de deux tuyaux à deux conduits, en particulier pour véhicule automobile
DE4432562A1 (de) * 1993-10-22 1995-04-27 Automotive Fluid Systems Inc Schnellverbindungs-Schwenkkupplung
US5507529A (en) * 1993-11-29 1996-04-16 Valeo Climatisation Rapid coupling device for tube members of a heat exchanger

Also Published As

Publication number Publication date
DE19838273A1 (de) 2000-02-24

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