EP2650052B2 - Pistolet de pulvérisation de poudre et dispositif de revêtement par pulvérisation avec un pistolet de pulvérisation de poudre - Google Patents

Pistolet de pulvérisation de poudre et dispositif de revêtement par pulvérisation avec un pistolet de pulvérisation de poudre Download PDF

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Publication number
EP2650052B2
EP2650052B2 EP12405036.0A EP12405036A EP2650052B2 EP 2650052 B2 EP2650052 B2 EP 2650052B2 EP 12405036 A EP12405036 A EP 12405036A EP 2650052 B2 EP2650052 B2 EP 2650052B2
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EP
European Patent Office
Prior art keywords
powder
air
spray gun
beaker
connection
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
EP12405036.0A
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German (de)
English (en)
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EP2650052A1 (fr
EP2650052B1 (fr
Inventor
Thomas Schwarz
René Schmid
Gilbert Lutz
Karsten Jüterbock
Pierre Plascar
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J Wagner AG
Original Assignee
J Wagner AG
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Publication date
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Application filed by J Wagner AG filed Critical J Wagner AG
Priority to EP12405036.0A priority Critical patent/EP2650052B2/fr
Priority to JP2013068475A priority patent/JP6544882B2/ja
Priority to US13/858,957 priority patent/US10478850B2/en
Publication of EP2650052A1 publication Critical patent/EP2650052A1/fr
Publication of EP2650052B1 publication Critical patent/EP2650052B1/fr
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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
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid 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
    • 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
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/03—Discharge apparatus, e.g. electrostatic spray guns characterised by the use of gas, e.g. electrostatically assisted pneumatic spraying
    • B05B5/032—Discharge apparatus, e.g. electrostatic spray guns characterised by the use of gas, e.g. electrostatically assisted pneumatic spraying for spraying particulate materials
    • 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
    • B05B5/1683—Arrangements for supplying liquids or other fluent material specially adapted for particulate materials
    • 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
    • B05B5/1691—Apparatus to be carried on or by a person or with a container fixed to the discharge device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
    • B05B7/1404—Arrangements for supplying particulate material
    • B05B7/1413—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising a container fixed to the discharge device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2405—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle
    • B05B7/2408—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle characterised by the container or its attachment means to the spray apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2478—Gun with a container which, in normal use, is located above the gun

Definitions

  • the invention relates to a powder cup spray gun and a spray coating device with a powder cup spray gun which are suitable for spraying coating powder.
  • the industry has developed powder cup guns for these applications.
  • the powder reservoir of these powder cup spray guns is located directly on the spray gun.
  • the powder storage container which is also referred to below as a powder cup or, for short, a cup, has a relatively small capacity.
  • the user can save powder because the powder does not have to be transported to the spray gun via a powder hose from a large, remote powder storage container.
  • the user does not have to clean the powder hose when changing the color. And cleaning the small powder cup is much less time-consuming than cleaning the large storage container.
  • the gun-shaped sprayer has a powder container that can be screwed onto the top of the gun head.
  • the gun head has a countersink at the top with an internal thread.
  • the powder container comprises a connection piece with an external thread that matches the internal thread.
  • In the connection piece there is also an air inlet hole for loosening gas.
  • the screw connection forms a seal so that the loosening gas cannot escape.
  • a powder spray gun for casting dishes is known.
  • the powder made of plastic is injected into a recess in a heated mold.
  • the powder is in a powder container at the back of the spray gun.
  • FIG. 1 is taken from the operating instructions and shows the cup gun D in a three-dimensional view.
  • the cup gun D is a manually operated powder spray gun with a powder storage cup H, which is screwed onto the gun D from above in the rear area.
  • the cup gun D has a screw thread J for this purpose.
  • cup guns have in common that they have an electrical connection G and a supply connection F for compressed air at the lower end of the handle.
  • the electrical connection G is connected to a control unit via an electrical cable and the supply connection F via a compressed air hose.
  • the compressed air supply to the cup gun can be adjusted with the help of the control unit.
  • these cup guns have the disadvantage that the color change cannot be carried out quickly enough.
  • the user must first carefully unscrew the supply cup from the gun. To do this, he holds the pistol with one hand and grabs the cup with the other hand and begins to unscrew it. As a rule, he will grip the cup several times in order to be able to unscrew it completely.
  • reaching around is tricky, especially when there is still powder in the storage cup, because there is then the risk of the powder spilling or trickling out of the outlet opening of the powder cup.
  • the compressed air supplied to the gun via the supply connection is divided into conveying air, tribo air (with the tribo guns) or atomizing air (with the corona gun), metering air and air for fluidizing the powder.
  • conveying air tribo air
  • atomizing air with the corona gun
  • metering air for fluidizing the powder.
  • a manually adjustable valve for the conveying air a manually adjustable valve for the metering air
  • a manually adjustable valve for the atomizing air or tribo air a manually adjustable valve for the fluidizing air at the rear of the powder cup gun. All valves are connected on the inlet side to the supply connection. If a valve is now adjusted, it cannot be ensured that this has no effect on the other air flows. The user does not know how high the four air pressures actually are.
  • the four valve settings provide only very imprecise information about this. This in turn leads to the fact that it is not easy to make recommendations as to how the individual air pressures are to be set for other powder spray guns, especially those used in series production. The results achieved are therefore only reproducible to a limited extent and the compressed air settings cannot be easily transferred to other spray guns. However, this is among other things in the development of coating powder is desirable.
  • An object of the invention is to provide a powder cup spray gun in which the color change can be carried out quickly and smoothly.
  • the powder cup spray gun has an injector with a powder inlet, a powder cup and a receptacle for the powder cup.
  • the powder inlet of the injector is connected to the receptacle.
  • the powder cup and the receptacle are designed such that the powder cup can be plugged into the receptacle.
  • a handle with a connection for conveying air, a connection for atomizing air and a connection for metering air is provided. The connection for the conveying air and the connection for the metering air are connected to the injector via lines running in the handle.
  • a gun housing can be provided which is designed in such a way that the injector can be screwed on from the outside.
  • the injector is quickly and easily accessible and can be unscrewed in a few simple steps. The staff can then service and clean the injector.
  • a sealing ring is provided in the receptacle for the powder cup. A secure and reliably sealing connection between the receptacle and the powder cup is thus achieved.
  • a further sealing ring is provided in the receptacle for the powder cup. This seals the connection between the receptacle and the powder cup even more securely and reliably.
  • a powder line and a metering air channel are provided, the metering air channel opening into the powder line in a ring shape.
  • the injector of the powder cup spray gun according to the invention can have a driving nozzle and a catching nozzle, the driving nozzle having a driving nozzle channel and the catching nozzle having a mixing tube section.
  • the ratio between the diameter of the driving nozzle channel and the inner diameter of the mixing tube section is preferably in the range between 1.9 and 2.5.
  • the powder cup used for the powder cup spray gun described above can have a side wall that is funnel-shaped.
  • a powder outlet which is tubular in shape can be provided in the powder cup. This ensures that the powder is continuously sucked into the injector without additional measures. Fluidization with fluidizing air is no longer necessary.
  • the powder cup has a lid with a separable cover cap.
  • the cover cap is designed in such a way that it is suitable for closing the powder outlet.
  • a spray coating device with the above-described powder cup spray gun and a control unit is proposed.
  • the control unit is designed and operated in such a way that it can be used to regulate the conveying air, the atomizing air and the metering air.
  • compressed air hoses are provided with which the control unit is connected to the connection for the conveying air, the connection for the metering air and the connection for the atomizing air of the powder cup spray gun.
  • the powder cup spray gun according to the invention in connection with the control device advantageously achieves an extraordinarily high and permanently constant quality of the powder spray jet.
  • the powder cup spray gun is also referred to below as a cup spray gun or, for short, a spray gun.
  • the cup spray gun has a housing 1. At its rear end 1.2 there is a pneumatically operated powder injector 2, which in the following is also referred to as an injector for the sake of simplicity.
  • the cup spray gun also has a handle 1.1 with which the operating personnel can hold and operate the spray gun. In the embodiment shown here, the handle 1.1 is part of the housing 1, but this does not have to be mandatory. The handle 1.1 can also be a separate component.
  • the operating personnel can control the powder flow and, if necessary, also the high voltage, via a trigger 10 which is built into the handle 1.1. If the trigger 10 is operated, the high voltage is applied to a high voltage electrode 12.1 (see Figure 4 ) at.
  • the coating powder, or powder for short, flowing past the high-voltage electrode 12.1 is charged electrostatically and sprayed through a powder jet nozzle 9.
  • Figure 3 shows this part of the handle in a three-dimensional view.
  • the injector 2 is supplied with conveying air via a connection 5 for conveying air, which is also referred to as conveying air connection.
  • the injector 2 is supplied with metering air via a connection 6 for metering air, also called metering air connection.
  • a connection 7 for atomizing air which is also referred to as the atomizing air connection.
  • the atomizing air is fed into the spray gun up to its mouth. With the help of the atomizing air, the operating personnel can adjust the shape of the powder cloud.
  • the atomizing air can be used to cool the high-voltage cascade and to remove the ozone generated.
  • the atomizing air can also protect the electrode 12.1 from powder deposits.
  • the atomizing air also prevents powder from getting into the opening of the electrode holder 12 from which the electrode 12.1 protrudes. If not the in Figure 2
  • the flat jet nozzle shown is used, but a round jet nozzle with a baffle plate arranged in front of it, the atomizing air can also protect the baffle plate from powder deposits.
  • control unit 30 In the spray gun there is a high-voltage generator, which comprises a transformer and a downstream high-voltage cascade, and which transforms the high-frequency low voltage into a high voltage.
  • Control and information signals from an in Figure 5 control unit 30 shown are guided to the spray gun.
  • control and information signals can also be passed from the spray gun to control device 30.
  • the coating powder is sprayed via the spray nozzle 9.
  • a control panel 27 with buttons, via which, for example, a recipe can be selected from a list of several recipes stored in the control device 30.
  • the control device 30 then regulates the individual parameters, such as metering air, conveying air, atomizing air and voltage accordingly.
  • the recipes or airs can also be selected directly on the control device 30.
  • a flushing recipe can also be selected for thorough cleaning of the powder channels inside the gun.
  • the powder to be sprayed is in a powder cup 3, which is in the in Figure 2 embodiment shown sits at the rear end of the spray gun.
  • the powder cup 3 has a removable lid 4 with a closable air inlet opening 4.3 (see Figure 7 ).
  • the air inlet opening 4.3 is usually open, so that no negative pressure arises in the powder cup 3.
  • the air inlet opening 4.3 can be closed with a closure 4.2. To do this, press the nipple of the closure 4.2 into the air inlet opening 4.3.
  • the cover 4 also has a cover cap 4.1, which can be removed and serves to open the powder outlet opening 3.1 ( Figure 6 ) of the powder cup 3 at the bottom. If you want to fill the powder cup 3 with coating powder, you can detach the cover cap 4.1 from the cover 4 and use it to close the powder outlet opening 3.1 at the lower end of the powder cup 3. The powder cup 3 can then be filled and, if desired, the top of the powder cup can be closed with the lid 4. In this way it is ensured that the powder located in the powder cup 3 cannot escape. If you now want to put the powder cup 3 on the spray gun, turn the powder cup 3 with the powder outlet opening 3.1 upwards and remove the cover cap 4.1.
  • the powder outlet opening 3.1 is inserted into the intended receptacle 2.1 in the injector 2.
  • the coating powder now enters the powder outlet opening 3.1
  • the inlet 2.2 of the injector 2 immediately following it.
  • the inlet 2.2 is also referred to as the intake duct.
  • the coating powder thus reaches the injector 2 by the shortest route from the powder cup 3 and from there via the powder line 15 located inside the spray gun to the powder spray nozzle 9.
  • the injector 2 works according to the Venturi principle. With the aid of a continuous flow of conveying air, a negative pressure is generated in the injector, which causes powder to be sucked in from the powder cup 3 and transported together with the flow of conveying air in the direction of the powder spray nozzle 9.
  • metering air is fed to the injector 2 in order to support the conveyance of the powder to the spray nozzle 9.
  • the injector 2 comprises a propulsion nozzle 13 (see Figures 6 and 7th ), which via a compressed air line 19 with conveying air ( Figure 8 ) can be supplied.
  • the conveying air flowing out of the driving nozzle 13 generates a negative pressure in the suction channel 2.2 so that the powder is sucked out of the powder cup 3.
  • the injector 2 there is also a compressed air channel which opens into the powder line 15.
  • the metering air can be fed into the powder line 15 via the compressed air channel.
  • the compressed air channel advantageously opens into the powder line in a ring shape.
  • the amount of metering air to be fed in depends on the total amount of air required.
  • the sum of metering air and conveying air is referred to here as the total amount of air.
  • Figure 4 shows the powder cup spray gun according to the invention in a partially disassembled state in a three-dimensional view.
  • a union nut 8 that can be unscrewed by hand is first removed.
  • the spray nozzle 9 and the electrode holder 12 with the high-voltage electrode 12.1 can then be removed.
  • FIG. 5 shows a possible embodiment of a control device 30 for the powder cup spray gun according to the invention.
  • the control device 30, which is also referred to as a control unit, has a first adjusting knob 31, via which the conveying air quantity per unit of time can be set.
  • a second adjusting knob 32 is provided, via which the amount of metered air per unit of time can be set.
  • a third adjusting knob 33 is also provided, by means of which the amount of atomizing air per unit of time can be adjusted.
  • the control unit 30 comprises corresponding control loops which ensure that the set target values for the conveying air, metering air and atomizing air are actually adhered to. The actual values of the conveying air, metering air and atomizing air can be read on the associated displays 34, 35 and 36.
  • Figure 6 shows the powder cup spray gun according to the invention in a partially disassembled state in a three-dimensional view.
  • the injector 2 can be detached from the flange 26 quickly and easily in a few simple steps.
  • the driving nozzle 13 and the collecting nozzle 14 can now be pulled out and checked, cleaned or replaced if necessary.
  • a short connecting pipe 37 is provided which connects the conveying air line arranged in the gun to the injector 2 and which can also be removed.
  • the O-rings 38 and 39 serve as seals.
  • Figure 7 shows the powder cup spray gun according to the invention in longitudinal section.
  • Figure 8 the compressed air lines and connections that are housed in handle 1.1 of the spray gun are shown, among other things.
  • the conveying air connection 5 is connected to one end of the compressed air line 19 via a connection nipple 21.
  • Another connection nipple 23 connects the other end of the compressed air line 19 to a conveying air duct in the flange 26, which in turn is connected to the conveying air duct of the injector 2.
  • the metering air connection 6 is connected to one end of the compressed air line 18 via a connection nipple 22.
  • Another connection nipple 24 connects the other end of the compressed air line 18 to a metering air channel in the flange 26, which in turn is connected to the metering air channel of the injector 2.
  • cascade plug 25 in the spray gun, which is connected to the cables coming from the electrical connection 11.
  • the plug contacts of the high-voltage cascade are plugged into the cascade plug 25.
  • the downstream end of the atomizing air line 20 is placed on a connection nipple 29. This is also attached to the cascade plug 25. From there, the atomizing air flows past the high-voltage cascade. Then it is passed through the electrode holder and brought to the mouth of the spray gun.
  • Figure 9 shows the rear part of the powder cup spray gun according to the invention in a longitudinal section in an enlarged view.
  • the collecting nozzle 14 has a downstream section downstream behind the O-ring. This downstream section and the channel surrounding it in the flange 26 and the powder line 15 surrounding it form a metering air channel 40.
  • the metering air channel 40 is designed such that it opens into the powder line 15 in an annular manner.
  • the powder line 15 is also referred to as a powder tube.
  • the following dimensions for the injector 2 have proven to be particularly advantageous in the powder cup gun.
  • Driving nozzle channel diameter d1 1.5 mm
  • Diameter of the inlet opening of the collecting nozzle d2 3.3 mm.
  • the diameter of the inlet opening is d2 at the same time the inside diameter of the mixing tube.
  • Diameter of the outlet opening of the collecting nozzle d3 5.05 mm
  • the distance I2 is also the length of the mixing tube.
  • Distance between the start of the diffuser and the end of the collecting nozzle I3 25 mm
  • a ratio of the diameters d2 to d1 of 1.9 ⁇ d 2 d 1 ⁇ 2.5 has proven to be particularly advantageous in terms of delivery rate.
  • the powder cup 3 has a radially protruding nose in the region of the pipe section 3.1 and the receptacle 2.1 has one or more radial bulges.
  • the bulges are used to accommodate the nose.
  • the nose and bulges form a kind of bayonet lock.

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  • Nozzles (AREA)
  • Electrostatic Spraying Apparatus (AREA)

Claims (10)

  1. Pistolet de pulvérisation de poudre à godet,
    - sur lequel est prévu à son extrémité arrière un injecteur (2) avec une entrée de poudre (2.2),
    - sur lequel sont prévus un godet à poudre (3) et un support (2.1) pour le godet à poudre (3),
    - sur lequel l'entrée de poudre (2.2) de l'injecteur (2) est reliée au support (2.1),
    - sur lequel le godet à poudre (3) et le support (2.1) sont conçus de telle sorte, que le godet à poudre (3) soit enfichable dans le support (2.1),
    - sur lequel est prévu une poignée (1.1) comportant un raccord d'air de transport (5), un raccord d'air de pulvérisation (7) et un raccord d'air de dosage (6),
    - sur lequel le raccord pour l'air de transport (5) et le raccord pour l'air de dosage (6) sont reliés à l'injecteur (2) par des conduites (18, 19) qui cheminent à l'intérieur de la poignée (10).
  2. Pistolet de pulvérisation de poudre à godet, selon la revendication 1,
    comportant un corps de pistolet (1), qui est conçu de telle sorte que l'injecteur (2) puisse y être vissé de l'extérieur.
  3. Pistolet de pulvérisation de poudre à godet, selon l'une des revendications 1 ou 2,
    sur lequel une bague d'étanchéité (16) est prévue dans le support (2.1) pour le godet à poudre (3).
  4. Pistolet de pulvérisation de poudre à godet, selon la revendication 3,
    sur lequel une bague d'étanchéité (17) supplémentaire est prévue dans le support (2.1) pour le godet à poudre (3).
  5. Pistolet de pulvérisation de poudre à godet, selon l'une des revendications précédentes,
    - sur lequel une conduite de poudre (15) est prévue, et
    - sur lequel est prévu un canal d'air de dosage (40), qui pénètre de manière annulaire dans la conduite de poudre (15).
  6. Pistolet de pulvérisation de poudre à godet, selon l'une des revendications précédentes,
    - sur lequel l'injecteur (2) comporte une buse de propulsion (13) et une buse de réception (14),
    - sur lequel la buse de propulsion (13) comporte un canal de buse de propulsion (13.1) et sur lequel la buse de réception (14) comporte un segment tubulaire de mélange, et
    - sur lequel le rapport entre le diamètre du canal de la buse de propulsion d1 et le diamètre intérieur du segment tubulaire de mélange d2 se situe dans une plage de valeurs entre 1,9 et 2,5.
  7. Godet à poudre pour un pistolet de pulvérisation de poudre à godet selon une des revendications précédentes,
    sur lequel la paroi latérale (3.2) est conçue en forme d'entonnoir.
  8. Godet à poudre selon la revendication 7,
    sur lequel une sortie de poudre (3.1) de forme tubulaire est prévue.
  9. Godet à poudre selon la revendication 7 ou 8,
    - sur lequel est prévu un couvercle (4) avec un capuchon séparable (4.1),
    - sur lequel le capuchon (4.1) est conçu de telle sorte, qu'il est adéquat pour fermer la sortie de poudre (3.1).
  10. Dispositif de revêtement par pulvérisation avec un pistolet de pulvérisation de poudre à godet, selon l'une des revendications précédentes,
    - sur lequel est prévu une unité de commande (30) qui est conçue et qui est exploitable de telle manière, qu'elle permette de régler l'air de transport, l'air de pulvérisation et l'air de dosage,
    - sur lequel sont prévus des conduites pneumatiques, auxquelles est raccordée l'unité de commande (30) par l'intermédiaire du raccord pour l'air de transport (5), du raccord pour l'air de dosage (6) et du raccord pour l'air de pulvérisation (7) du pistolet de pulvérisation de poudre à godet.
EP12405036.0A 2012-04-13 2012-04-13 Pistolet de pulvérisation de poudre et dispositif de revêtement par pulvérisation avec un pistolet de pulvérisation de poudre Active EP2650052B2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP12405036.0A EP2650052B2 (fr) 2012-04-13 2012-04-13 Pistolet de pulvérisation de poudre et dispositif de revêtement par pulvérisation avec un pistolet de pulvérisation de poudre
JP2013068475A JP6544882B2 (ja) 2012-04-13 2013-03-28 粉末カップ付きスプレイガン及び粉末カップ付きスプレイガンを備えたスプレイコーティング装置
US13/858,957 US10478850B2 (en) 2012-04-13 2013-04-09 Powder cup spray gun and spray-coating device comprising a powder cup spray gun

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12405036.0A EP2650052B2 (fr) 2012-04-13 2012-04-13 Pistolet de pulvérisation de poudre et dispositif de revêtement par pulvérisation avec un pistolet de pulvérisation de poudre

Publications (3)

Publication Number Publication Date
EP2650052A1 EP2650052A1 (fr) 2013-10-16
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DE202017002680U1 (de) * 2017-05-19 2018-08-21 Sata Gmbh & Co. Kg Behälter für eine Spritzpistole sowie Vorrichtung zum Versprühen oder Verspritzen einer Substanz mit einem solchen Behälter
JP6423495B1 (ja) * 2017-07-21 2018-11-14 株式会社メンテック ノズルキャップ、それを備えたノズル装置及び薬液の散布方法
DE202018102427U1 (de) * 2018-05-02 2019-08-06 Kaltenbach & Voigt Gmbh System mit einem Pulverstrahlgerät und einem Aufsatz-Element zum Reinigen des Pulverstrahlgeräts
EP4579371A3 (fr) * 2018-10-02 2025-12-24 Boston Scientific Scimed, Inc. Dispositifs de fluidisation et d'administration d'un agent pulverulent
USD959606S1 (en) * 2019-09-06 2022-08-02 Gema Switzerland Gmbh Spray gun

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EP2650052A1 (fr) 2013-10-16
EP2650052B1 (fr) 2015-12-16
JP2013220423A (ja) 2013-10-28
JP6544882B2 (ja) 2019-07-17
US20130270365A1 (en) 2013-10-17
US10478850B2 (en) 2019-11-19

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