EP0100854A1 - Verstelldüsenanordnung - Google Patents

Verstelldüsenanordnung Download PDF

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Publication number
EP0100854A1
EP0100854A1 EP83106354A EP83106354A EP0100854A1 EP 0100854 A1 EP0100854 A1 EP 0100854A1 EP 83106354 A EP83106354 A EP 83106354A EP 83106354 A EP83106354 A EP 83106354A EP 0100854 A1 EP0100854 A1 EP 0100854A1
Authority
EP
European Patent Office
Prior art keywords
arrangement according
ball
nozzle
recess
lever
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.)
Withdrawn
Application number
EP83106354A
Other languages
German (de)
English (en)
French (fr)
Inventor
Wolfgang Dr.-Ing. Trautwein
Gerhard Gebauer
Wilfried Goes
Kinya Kano
Helmar Wissmann
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
Priority claimed from DE19823230247 external-priority patent/DE3230247A1/de
Priority claimed from DE19833320664 external-priority patent/DE3320664A1/de
Application filed by J Wagner GmbH filed Critical J Wagner GmbH
Publication of EP0100854A1 publication Critical patent/EP0100854A1/de
Withdrawn legal-status Critical Current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
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/002—Manually-actuated controlling means, e.g. push buttons, levers or triggers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
    • 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
    • B05B12/002—Manually-actuated controlling means, e.g. push buttons, levers or triggers
    • B05B12/0022—Manually-actuated controlling means, e.g. push buttons, levers or triggers associated with means for restricting their movement
    • 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
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/01—Spray pistols, discharge devices

Definitions

  • the nozzles of spray guns have a predefined nozzle opening, through which the output quantity and spray angle are determined. If you want to change the two parameters, it is generally necessary to replace the nozzle with a nozzle with a different opening cross-section.
  • "nozzle adjustment" can be achieved in a simple manner by the cone-shaped valve body connected to the trigger trigger of the gun during the opening process is more or less far removed from the nozzle opening, resulting in a B e-measurement for the possibility Farb barnfluß to the nozzle opening (annular gap between the valve body and the nozzle opening) and a making desired setting Ausströmmengeund injection .winkel.
  • the adjustment range is considerable, and the setting of the amount of paint discharge and the spray angle can be made very precisely.
  • the arrangement is suitable for both round jet nozzles and flat jet nozzles (slot nozzles).
  • the arrangement consisting of a few simple parts can be designed as a unit, so that the arrangement is easy to replace and can even be used as an additional device on conventional spray guns.
  • the arrangement can also be used with spray guns that work with lower paint pressures.
  • a first lever 19 is attached in a rotationally fixed manner on the shaft 16, which is fork-shaped at its free end and has a cross pin 20:
  • a second lever 21 is provided at its one end with a longitudinal slot 21a, which is separated from the cross pin 20 of the first lever 19 is interspersed with play.
  • a valve ball 22 is rigidly attached, which is pressed against the nozzle body 13 by a helical spring 23 supported on a spring plate 24.
  • the nozzle body 13 has in its central region the shape of a spherical cap 13a, the inner wall of which has a radius of curvature equal to the outer radius of curvature of the valve ball.
  • the ball 22 pressed against this central area of the nozzle body 13 thus lies tightly against the inner wall of the nozzle body 13 over a certain area of its surface and thus closes the nozzle opening 14.
  • the ball 22 has one Flattening 22a, which, when it is wholly or partly behind the nozzle opening 14:, opens a passage between the tube interior 10a and the nozzle opening 14, as will be explained in detail later.
  • the nozzle body 13, the valve ball 22 and the cross pin 20 of the first transmission lever 19 are preferably made of hard metal.
  • the two levers 19, 21 themselves and the shaft 16, however, can be made of softer material, e.g. Steel or even plastic.
  • the connection between lever 21 and ball 22 .. is expediently made by soldering, welding or gluing, but plug or screw connections are also possible.
  • the device works as follows.
  • the ink line 12 is connected to a high-pressure ink source
  • the inncn fills up Room 10a of the gun barrel with paint under high pressure, which further increases the pressure on the ball 22 against the spherical cap region of the nozzle body 13.
  • the trigger lever 27, which is still in the rest position, causes the lever linkage 19, 21 to have a slight upward bend and the ball 22 tightly closes the nozzle opening 14. If the trigger lever 27 is now actuated, i.e. pulled towards the handle 92 against the spring force, then the shaft 16 rotates in the counterclockwise direction, the lever 19 pivots counterclockwise, the lever 21 pivots clockwise, and the ball 22 turns clockwise.
  • the flattened portion 22a reaches the nozzle opening 14, with the result that a connection is created between the tube interior 10a and the nozzle opening 14 and color can escape from the nozzle opening.
  • the nozzle opening 14 is opened further and further until the nozzle opening 14 is finally completely exposed when the trigger lever is fully pulled.
  • the nozzle size can thus be continuously adjusted. With the help of the adjusting screw 26, however, it is also possible to determine the opening degree and thus the nozzle size beforehand, in which case the operator quickly pulls the trigger lever 27 to the stop.
  • the union nut 15 in which the nozzle body 13 is located is unscrewed, whereupon the ball 22, the second lever 19 and the spring 23 with the spring plate 24 can be removed as a unit from the gun tube 10.
  • the arrangement in such a way that when a nozzle nut is loosened, the nozzle body can be removed in one piece together with a holder for the balls, the second lever and the spring elements.
  • the ink Upon exiting the paint through the gap between the nozzle body 13 and Anflächung of the ball 22, the ink is so directed ,, that it is incident on the lying on the center axis of the gun tube 10 surface of the slot 14 and there by: their impact is further atomized.
  • the inner surface of the nozzle body 13 can be shaped such that it extends outside its central spherical cap region 13a perpendicular to the gun tube axis (FIG. 1) or obliquely (FIGS. 4, 5) or even with a flatter curvature (ellipsoid). In any case, however, in the case of a nozzle body 13 with slot opening 14, care must be taken that the slot always remains in the desired direction, but this can easily be achieved by means of appropriate threads, stops or the like.
  • valve ball 22 can also be modified in many ways. For example, it is possible to replace the flat flattening 22a shown in FIG. 3 by a concave flattening 22a, as shown in FIG. 6. It is also possible to provide a keyway instead of a flattening, as shown in FIGS. 7 and 7a, the key. is only designated 22b. 8 and 8a show a modification of the keyway 22b, the two key surfaces having different positions. Finally, it is also possible to provide the ball 22 with a breakthrough in addition to or instead of the flattening or recess Paint for nozzle opening 14.
  • FIGS. 9 and 10 show a second embodiment of the invention, which is intended to be attached to existing spray guns without an adjustment nozzle, the nozzle adjustment then not being carried out via the trigger guard but by means of a special element.
  • the assembly described with reference to FIGS. 1 and 2 consisting of ball 22, second lever 21 and spring with spring plates 23, 24 is not housed in the pistol tube 10 itself, but in a tubular intermediate housing 90 which has a union nut 94 at its end remote from the nozzle with internal thread.
  • the union nut 94 is rotatably held on the housing with the aid of a snap ring 95.
  • the first lever to shorten the overall length — is guided forward from the articulation point 20 in the direction of the nozzle, and a disk spring 91 and a hand lever 92 are plugged onto the shaft 16 connected to it in a rotationally fixed manner outside the intermediate housing 90, the latter non-rotatable.
  • the shaft 16 is secured by a screw nut 93.
  • the invention can experience numerous modifications, in particular as regards the flattening or recessing of the ball 22 and its drive by the trigger guard, the formation of the articulated connection of the two levers 19, 21, the drive of the shaft 16 and the spring elements 23, 24.
  • extreme conditions such as comparatively low material pressure, high material viscosity and / or a very wide spray jet, it has been shown that certain difficulties can arise, namely with regard to the fineness and uniformity of atomization and the formation of edge strips on the outer spray jet edges.
  • the material pressure was very high, heavy wear on the spherical cap was found.
  • the trigger guard of the spray gun In the starting position, that is to say when the nozzle is closed, the trigger guard of the spray gun is in the unloaded position and the ball 22 with its recess 22a is outside the connection with the nozzle slot 14 of the spherical cap 13.
  • the material to be sprayed is fed to the recess 32, the recess 32 in its width and cut depth is designed so that it can flow through the longitudinal slot of the nozzle 14 corresponding flow rates without loss of flow.
  • the recess 22a becomes an opening connection brought with the nozzle slot 14 of the cap 13. Spray material then flows from the recess 32 into the recess 30, which acts as a swirl chamber.
  • the recess 22a can have a cylinder diameter of approximately 25-35% of the ball diameter with a penetration depth of 7-12%.
  • the recess 30 is spherical and has a diameter preferably from 38 to 48% of K ugel penmessers.
  • a cylinder diameter of approximately 25-36% of the ball diameter is suitable for the recess 32.
  • the connecting channel 31 preferably has an opening cross section of 40 - the equivalent largest desired nozzle cross section.
  • the recess 33 can finally have a ball diameter of 12-20% of the ball diameter with a penetration depth of 5 - 8% of the ball diameter.
  • this Z commended not specified the scope of the invention.

Landscapes

  • Nozzles (AREA)
EP83106354A 1982-08-13 1983-06-29 Verstelldüsenanordnung Withdrawn EP0100854A1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3230247 1982-08-13
DE19823230247 DE3230247A1 (de) 1982-08-13 1982-08-13 Verstellduesenanordnung
DE19833320664 DE3320664A1 (de) 1983-06-08 1983-06-08 Verstellduesenanordnung fuer hochdruck-spritzpistolen
DE3320664 1983-06-08

Publications (1)

Publication Number Publication Date
EP0100854A1 true EP0100854A1 (de) 1984-02-22

Family

ID=25803758

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83106354A Withdrawn EP0100854A1 (de) 1982-08-13 1983-06-29 Verstelldüsenanordnung

Country Status (2)

Country Link
EP (1) EP0100854A1 (pt)
BR (1) BR8304236A (pt)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3904437A1 (de) * 1989-02-14 1990-08-16 Gema Ransburg Ag Spruehpistole zum elektrostatischen spruehbeschichten
DE3904438A1 (de) * 1989-02-14 1990-08-16 Gema Ransburg Ag Spruehbeschichtungsgeraet zum elektrostatischen spruehbeschichten
US6189622B1 (en) 1999-05-11 2001-02-20 Le Group-Conseil Lasalle, Inc. Nozzle for fighting fires in buildings
DE10207197A1 (de) * 2002-02-21 2003-09-04 Alstom Switzerland Ltd Hochdruckeinspritzdüse, insbesondere für den Einsatz als Explosionszerstäuber
CN111515042A (zh) * 2020-05-27 2020-08-11 雷成涛 一种调节范围全覆盖喷射装置
US11950677B2 (en) 2019-02-28 2024-04-09 L'oreal Devices and methods for electrostatic application of cosmetics

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1252105B (pt) * 1964-11-05 1967-10-12

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1252105B (pt) * 1964-11-05 1967-10-12

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3904437A1 (de) * 1989-02-14 1990-08-16 Gema Ransburg Ag Spruehpistole zum elektrostatischen spruehbeschichten
DE3904438A1 (de) * 1989-02-14 1990-08-16 Gema Ransburg Ag Spruehbeschichtungsgeraet zum elektrostatischen spruehbeschichten
US4993645A (en) * 1989-02-14 1991-02-19 Ransburg-Gema Ag Spray coating device for electrostatic spray coating
US5022590A (en) * 1989-02-14 1991-06-11 Ransburg-Gema Ag Spray gun for electrostatic spray coating
US6189622B1 (en) 1999-05-11 2001-02-20 Le Group-Conseil Lasalle, Inc. Nozzle for fighting fires in buildings
DE10207197A1 (de) * 2002-02-21 2003-09-04 Alstom Switzerland Ltd Hochdruckeinspritzdüse, insbesondere für den Einsatz als Explosionszerstäuber
US11950677B2 (en) 2019-02-28 2024-04-09 L'oreal Devices and methods for electrostatic application of cosmetics
CN111515042A (zh) * 2020-05-27 2020-08-11 雷成涛 一种调节范围全覆盖喷射装置

Also Published As

Publication number Publication date
BR8304236A (pt) 1984-04-24

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): CH FR GB IT LI

17P Request for examination filed

Effective date: 19840626

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Withdrawal date: 19850502

RIN1 Information on inventor provided before grant (corrected)

Inventor name: WISSMANN, HELMAR

Inventor name: TRAUTWEIN, WOLFGANG, DR.-ING.

Inventor name: KANO, KINYA

Inventor name: GOES, WILFRIED

Inventor name: GEBAUER, GERHARD