EP0804968A2 - Dispositif pour la production d'un jet réglable de fluide - Google Patents

Dispositif pour la production d'un jet réglable de fluide Download PDF

Info

Publication number: EP0804968A2
Authority: EP; European Patent Office
Prior art keywords: nozzle; pressure; elastic element; nozzle tube; piston
Prior art date: 1996-05-02
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.): Granted

Application number

EP97106508A

Other languages

German (de)

English (en)

Other versions

EP0804968B1 (fr

EP0804968A3 (fr

Inventor

Werner Kettl

Josef Öttl

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.)

Baldwin Germany GmbH

Original Assignee

Grafotec 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.)

1996-05-02

Filing date

1997-04-19

Publication date

1997-11-05

1996-05-02 Priority claimed from DE19617479A external-priority patent/DE19617479A1/de

1997-04-19 Application filed by Grafotec GmbH filed Critical Grafotec GmbH

1997-11-05 Publication of EP0804968A2 publication Critical patent/EP0804968A2/fr

1998-08-19 Publication of EP0804968A3 publication Critical patent/EP0804968A3/fr

2002-10-02 Application granted granted Critical

2002-10-02 Publication of EP0804968B1 publication Critical patent/EP0804968B1/fr

2017-04-19 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

239000012530 fluid Substances 0.000 title abstract 2
238000007789 sealing Methods 0.000 claims abstract description 8
239000007788 liquid Substances 0.000 claims description 13
239000003292 glue Substances 0.000 claims description 3
239000000758 substrate Substances 0.000 claims description 2
230000000149 penetrating effect Effects 0.000 claims 1
238000012423 maintenance Methods 0.000 description 1
238000009423 ventilation Methods 0.000 description 1

Images

Classifications

- 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
- B05B1/32—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 in which a valve member forms part of the outlet opening

Definitions

the invention relates to a device for generating an adjustable jet of liquid, in particular when applying glue and / or soft liquid to a web, with a nozzle head which carries a nozzle provided with an opening arranged at the end of a flow path to which the liquid to be processed can be applied, wherein an elastic element is provided in the area of the opening, which has a passage recess communicating with the flow path and which, between two pressing members which can be adjusted relative to one another by means of an adjusting device provided on the nozzle holder, comprises a nozzle tube which is narrowed at the front and accommodates the elastic element and which engages in this, pierced pressure bolt is arranged.
a piston is provided with at least one through hole communicating with the passage recess of the elastic element, which engages in the nozzle tube, which is rigidly attached to the nozzle head, the pressure pin, a subsequent one, on which the Side facing away from the pressure pin has an actuating piston that delimits a pressure chamber that can be acted upon by pressure, and has a smaller diameter sealing pin that protrudes from it on the side opposite the pressure pin, which sealingly engages in a bore of the nozzle head that extends from the pressure chamber and can be acted upon with the liquid to be processed.
the drawing shows a nozzle head according to the invention, partly in section.
the nozzle head 5 shown consists of a housing block 40 to which a nozzle 41 is flanged. This has a nozzle tube 19 which is conically narrowed at its front end and has a front opening 34 and which is integrally formed on a rear flange 42 which is fastened to the housing block 40 by screws.
a cylinder space 43 provided for the housing block 40 adjoins the bore of the nozzle tube 19. This has a larger diameter than the bore of the nozzle tube 19 and is closed outside by the flange 42.
an elastic element 18 engaging with a molded cone in the conical narrowing of the nozzle tube 19 is provided, which has a central passage recess 17 which opens out in the area of the front opening 34 of the nozzle tube 19 and with a feed line 16 for which is connected in the form of a jet to a substrate, for example a moving paper web, liquid which can be applied, for example glue or soft liquid.
a substrate for example a moving paper web
liquid which can be applied, for example glue or soft liquid.
the elastic element 18 inserted into the rigidly arranged nozzle tube 19 and supported by the latter is pressed more or less strongly against the associated support surface of the nozzle tube 19 by a pressure pin 20 engaging in the nozzle tube 19.
the pressure pin 20 is actuated by an actuating device arranged in the housing block 40.
an adjusting piston 44 is provided in the cylinder chamber 43, from which the pressure pin 20, which has a smaller diameter, projects downwards and which delimits a pressure chamber 45 on the side opposite the pressure pin 20, which pressure pressure, for example compressed air, can be applied to via a supply connection 46 is.
the pressure of the pressure medium can be adjustable to regulate the pinching of the elastic element 18.
the maximum actuating movement of the actuating piston 44 is limited by a stop.
the flange 42 can be provided with a threaded bore in which an adjusting screw 47 is received, which forms an adjustable stop.
the flange 42 can also be provided with a ventilation recess 48.
a blind bore 49 extends upwards, into which the feed line 16 for the liquid to be processed opens.
a sealing pin 50 which is attached to the actuating piston 44 and is opposite the pressure bolt 20, engages in the blind bore 49. This is sealed against the wall of the blind bore 49 by O-rings.
the actuating piston 44 is sealed off from the wall of the associated cylinder space 43 by O-rings.
the actuating piston 44 and the pressure bolt 20 and sealing pin 50 attached thereto form a piston arrangement in the form of a stepped piston.
This entire piston arrangement is provided with a central through bore 51, to which the through recess 17 of the elastic element 18 connects, as a result of which the through recess 17 of the elastic element 18 is connected to the feed line 16.
the depth of engagement of the sealing pin 50 in the blind bore 49 is greater than the maximum travel of the actuating piston 44, so that the sealing pin 50 in any case remains in engagement with the blind bore 49, as a result of which the pressure chamber 45 remains reliably sealed off from the feed line 16 for the liquid to be processed. This is fed regardless of the position of the actuating piston 44 via the central passage recess 51 to the central passage recess 17 of the elastic element 18.

Landscapes

Coating Apparatus (AREA)
Nozzles (AREA)

EP97106508A 1996-05-02 1997-04-19 Dispositif pour la production d'un jet réglable de fluide Expired - Lifetime EP0804968B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE19617479A DE19617479A1 (de)	1995-02-13	1996-05-02	Vorrichtung zur Erzeugung eines einstellbaren Flüssigkeitsstrahls
DE19617479		1996-05-02

Publications (3)

Publication Number	Publication Date
EP0804968A2 true EP0804968A2 (fr)	1997-11-05
EP0804968A3 EP0804968A3 (fr)	1998-08-19
EP0804968B1 EP0804968B1 (fr)	2002-10-02

Family

ID=7793017

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP97106508A Expired - Lifetime EP0804968B1 (fr)	1996-05-02	1997-04-19	Dispositif pour la production d'un jet réglable de fluide

Country Status (4)

Country	Link
US (1)	US5850974A (fr)
EP (1)	EP0804968B1 (fr)
JP (1)	JPH1034031A (fr)
DE (1)	DE59708349D1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE19849687A1 (de) *	1998-10-28	2000-05-04	Valeo Auto Electric Gmbh	Düsenelement für eine Scheibenwaschanlage eines Kraffahrzeuges
US6250572B1 (en) *	2000-09-07	2001-06-26	Globe Union Industrial Corp.	Showerhead
JP5109850B2 (ja)	2008-07-16	2012-12-26	セイコーエプソン株式会社	像担持体のクリーニング装置、クリーニング方法、および画像形成装置
CN117142752B (zh) *	2023-08-31	2024-02-27	佛山科学技术学院	一种气体射流喷管的喷口调节机构
US20250121396A1 (en) *	2023-10-17	2025-04-17	Raven Industries, Inc.	Multifunctional nozzle assembly for agricultural vehicles

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE708961C (de) *	1936-10-21	1941-08-01	Hans Metz	Strahlrohr fuer Feuerloeschzwecke
US2793080A (en) *	1949-03-19	1957-05-21	Warren G Brown	Nozzle for spraying cementitious materials
US3291396A (en) *	1964-11-30	1966-12-13	Walter John	Self-purging mixing and spraying apparatus
US3550861A (en) *	1968-08-28	1970-12-29	William R Teson	Hose nozzle
US3711020A (en) *	1970-07-06	1973-01-16	R Zelna	High frequency solder paste gun
SU1057689A1 (ru) *	1982-06-10	1983-11-30	Всесоюзный научно-исследовательский институт золота и редких металлов	Насадка гидромонитора
JP2532323Y2 (ja) *	1990-10-26	1997-04-16	株式会社いけうち	ノズル
FR2687333A1 (fr) *	1992-02-14	1993-08-20	Tecnoma	Buse de pulverisation de liquide.

1997
- 1997-04-10 JP JP9092332A patent/JPH1034031A/ja active Pending
- 1997-04-14 US US08/843,284 patent/US5850974A/en not_active Expired - Fee Related
- 1997-04-19 EP EP97106508A patent/EP0804968B1/fr not_active Expired - Lifetime
- 1997-04-19 DE DE59708349T patent/DE59708349D1/de not_active Expired - Lifetime

Also Published As

Publication number	Publication date
EP0804968B1 (fr)	2002-10-02
DE59708349D1 (de)	2002-11-07
US5850974A (en)	1998-12-22
JPH1034031A (ja)	1998-02-10
EP0804968A3 (fr)	1998-08-19

Legal Events

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1999-06-23	17Q	First examination report despatched	Effective date: 19990510
2001-12-14	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
2002-04-18	GRAG	Despatch of communication of intention to grant	Free format text: ORIGINAL CODE: EPIDOS AGRA
2002-04-18	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
2002-06-12	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: BALDWIN GERMANY GMBH
2002-07-05	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
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2003-03-03	NLV1	Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
2003-04-02	GBV	Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]	Effective date: 20021002
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