EP1600216A2 - Pistolet de pulvérisation - Google Patents

Pistolet de pulvérisation Download PDF

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Publication number
EP1600216A2
EP1600216A2 EP05010568A EP05010568A EP1600216A2 EP 1600216 A2 EP1600216 A2 EP 1600216A2 EP 05010568 A EP05010568 A EP 05010568A EP 05010568 A EP05010568 A EP 05010568A EP 1600216 A2 EP1600216 A2 EP 1600216A2
Authority
EP
European Patent Office
Prior art keywords
spray gun
flow rate
casing
needle
piston
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Withdrawn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
EP05010568A
Other languages
German (de)
English (en)
Other versions
EP1600216A3 (fr
Inventor
Walter Tamiozzo
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1600216A2 publication Critical patent/EP1600216A2/fr
Publication of EP1600216A3 publication Critical patent/EP1600216A3/fr
Withdrawn legal-status Critical Current

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    • 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
    • B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
    • B05B7/1254—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated
    • B05B7/1263—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated pneumatically actuated
    • B05B7/1272—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated pneumatically actuated actuated by gas involved in spraying, i.e. exiting the nozzle, e.g. as a spraying or jet shaping gas
    • B05B7/1281—Serial arrangement, i.e. a single gas stream acting on the controlling means first and flowing downstream thereof to the nozzle
    • 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
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • 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
    • B05B1/306—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 the actuating means being a fluid
    • 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
    • B05B12/085—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 flow or pressure of liquid or other fluent material to be discharged
    • B05B12/087—Flow or presssure regulators, i.e. non-electric unitary devices comprising a sensing element, e.g. a piston or a membrane, and a controlling element, e.g. a valve
    • 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
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • 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
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0807—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
    • 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
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0807—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
    • B05B7/0815—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter
    • B05B7/0823—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter comprising a rotatable spray pattern adjusting plate controlling the flow rate of the spray shaping gas jets

Definitions

  • spray guns (such as, for example, those mounted on spraying machines in tanneries) operate on the principle of regulating the supply of liquid using a single needle that opens and closes the substance outlet nozzle.
  • a second disadvantage apparent in these spray guns arises from the fact that alterations to the needle position cause variations in the opening and closing times for the product outlet profile, which necessitates altering the work parameters of the machine, to adapt them to the period of time required for the needle to complete a full cycle.
  • the objective of the present finding is to create a spray gun or airbrush that does not have the disadvantages apparent in similar known products of this type.
  • This objective is achieved with a spray gun characterized in that the device for regulating the flow rate of the liquid substance to be sprayed is independent of the device that activates the operation of the needle for regulating the opening and closing of the substance outlet nozzle.
  • this objective is achieved with a spray gun in which the micrometric regulation of the liquid flow rate is independent of the needle and outlet nozzle sizes.
  • the objective is also achieved with a spray gun in which the regulation of the liquid flow rate is independent of the needle movement for opening and closing the nozzle.
  • this objective is achieved with a spray gun characterized in that it has a liquid flow rate regulator located externally on the instrument; or more specifically, fixed on the liquid inlet opening and connected to the liquid supply tube itself.
  • the flow rate regulator comprises a fixed hollow casing, made as a fixed or integral part of the instrument casing, within which runs a piston-pin that determines the profile of the fluid flow.
  • the axial motion of the piston-pin for the purpose of opening and closing the fluid regulator, as well as its stop limit position for regulating the flow rate of liquid entering the gun, are determined manually or by means of electro-pneumatic servomechanisms.
  • the spray gun marked in its entirety as item [1], comprises a casing [2], within which runs a needle [3], which engages with the nozzle outlet profile [4], to which is fixed an atomizer [5] held in place with a retaining ring [6].
  • Openings "H” an "K” are formed in the casing [2], providing for the intake respectively of nebulising air, conveyed via a duct [7] to the nozzle [4] and of pressurised air which, when working, is used both to elevate the piston [8] so as to open inlet "H” and to raise the needle [3] so as to open the nozzle [4].
  • opening "H” is closed by the piston [8], which is lowered by the thrust action of the spring [9].
  • the first innovative feature of the invention provides for the flow rate of the liquid to be sprayed to be determined by means of a flow rate regulator, marked in its entirety as item [20], located externally on the casing [2] and communicating with the nozzle [4] via channel [13] formed in the above casing and connected externally to the liquid inlet tube "L".
  • the flow rate regulator [20] comprises a casing [21] equipped with a piston-pin [22] capable of running axially between the opening and closing positions of the channel [13] and vice versa.
  • the liquid flow rate from the tube "L" to the channel [13] is determined, at the operating stage, by the position of the piston-pin [22], which stops against the spindle [26] screwed onto the hub [25].
  • part of the hub [25] is provided with longitudinal ribbing [28] and a click-pin [29], fixed to the sleeve, which engages with this ribbing.
  • each rib triggers the click-pin, this being observed by the operator or read from appropriate markings incised on the external surface of the sleeve [27]; the operator is therefore able to appreciate the extent of the sleeve's angular rotation and hence the movement of the piston-pin [22] or rather, the extent to which the liquid flow tube is open or blocked.
  • the second innovative feature of the finding concerns the facility, on each spray gun, to regulate the flow rate of nebulising air that is input through opening "H” and goes on to create the spray cone of the atomizer [5].
  • the angular rotation of the ring [16], for regulating the overlap of the two through holes [14 / 17], is achieved by means of a threaded connection consisting of a grub screw [18] which is screwed into the casing and engages with a threaded section formed in the ring [16].
  • the instrument In order that the instrument can be adapted to the properties of the liquid to be sprayed, the invention features further improvements in construction, such as:
  • the invention allows for a single flow rate regulator [20] to supply two or more spray guns [1.1, 1.2 & 1.3] simultaneously and regulate their liquid substance flow rate.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Nozzles (AREA)
EP05010568A 2004-05-24 2005-05-16 Pistolet de pulvérisation Withdrawn EP1600216A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000128A ITVI20040128A1 (it) 2004-05-24 2004-05-24 Pistola spruzzatrice
ITVI20040128 2004-05-24

Publications (2)

Publication Number Publication Date
EP1600216A2 true EP1600216A2 (fr) 2005-11-30
EP1600216A3 EP1600216A3 (fr) 2005-12-28

Family

ID=34936547

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05010568A Withdrawn EP1600216A3 (fr) 2004-05-24 2005-05-16 Pistolet de pulvérisation

Country Status (2)

Country Link
EP (1) EP1600216A3 (fr)
IT (1) ITVI20040128A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006030365A1 (fr) * 2004-09-17 2006-03-23 Huzar Power Sp. Z O. O. Injecteur de fluide de travail pour moteur vapeur a piston
FR2916657A1 (fr) * 2007-05-30 2008-12-05 Techniplast Sarl Dispositif d'obturation d'une buse de distribution de fluide
ITVR20120018A1 (it) * 2012-01-31 2013-08-01 Todesco S R L Dispositivo di regolazione dell'erogazione di un prodotto liquido
ITUB20160716A1 (it) * 2016-02-12 2017-08-12 Andrea Pegoraro Dispositivo di spruzzatura
CN108499764A (zh) * 2018-06-02 2018-09-07 上海华立电子工程有限公司 活塞雾化喷头
DE102020107044A1 (de) 2020-03-13 2021-09-16 André Hiessl Sprühvorrichtung zum Ausbringen kleiner Mengen eines Sprühmediums
ES2878477A1 (es) * 2020-05-18 2021-11-18 Counterfog Ebt De La Uah Sl Equipo portátil para descontaminación rápida
CN115143482A (zh) * 2022-07-25 2022-10-04 淮南中建材腾锋环保科技有限公司 一种耐高温有机废液焚烧喷枪

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113738074B (zh) * 2021-09-15 2022-12-13 绍兴职业技术学院 一种冲击型砂浆机械化涂用喷枪

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1083943A (fr) * 1952-09-29 1955-01-13 Tête pulvérisatrice pour pistolet pulvérisateur
US3450092A (en) * 1965-07-08 1969-06-17 Vilbiss Co The De Color change apparatus
US4368852A (en) * 1981-03-23 1983-01-18 Nordson Corporation Combination spray gun and pressure regulator
FR2552345B1 (fr) * 1983-09-27 1985-12-20 Sames Sa Appareillage de peinture electrostatique a pulverisateur pneumatique sur support mobile, reglable en fonctionnement
JP2000005647A (ja) * 1998-06-23 2000-01-11 Fuso Seiki Kk スプレーガン

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006030365A1 (fr) * 2004-09-17 2006-03-23 Huzar Power Sp. Z O. O. Injecteur de fluide de travail pour moteur vapeur a piston
FR2916657A1 (fr) * 2007-05-30 2008-12-05 Techniplast Sarl Dispositif d'obturation d'une buse de distribution de fluide
ITVR20120018A1 (it) * 2012-01-31 2013-08-01 Todesco S R L Dispositivo di regolazione dell'erogazione di un prodotto liquido
ITUB20160716A1 (it) * 2016-02-12 2017-08-12 Andrea Pegoraro Dispositivo di spruzzatura
CN108499764A (zh) * 2018-06-02 2018-09-07 上海华立电子工程有限公司 活塞雾化喷头
DE102020107044A1 (de) 2020-03-13 2021-09-16 André Hiessl Sprühvorrichtung zum Ausbringen kleiner Mengen eines Sprühmediums
ES2878477A1 (es) * 2020-05-18 2021-11-18 Counterfog Ebt De La Uah Sl Equipo portátil para descontaminación rápida
WO2021234202A1 (fr) * 2020-05-18 2021-11-25 Counterfog Ebt De La Uah S.L Équipement portable pour la décontamination rapide
CN115143482A (zh) * 2022-07-25 2022-10-04 淮南中建材腾锋环保科技有限公司 一种耐高温有机废液焚烧喷枪

Also Published As

Publication number Publication date
EP1600216A3 (fr) 2005-12-28
ITVI20040128A1 (it) 2004-08-24

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