EP0159977A2 - Dispositif de coupe à fluide sous pression - Google Patents

Dispositif de coupe à fluide sous pression Download PDF

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Publication number
EP0159977A2
EP0159977A2 EP85890097A EP85890097A EP0159977A2 EP 0159977 A2 EP0159977 A2 EP 0159977A2 EP 85890097 A EP85890097 A EP 85890097A EP 85890097 A EP85890097 A EP 85890097A EP 0159977 A2 EP0159977 A2 EP 0159977A2
Authority
EP
European Patent Office
Prior art keywords
jet
medium
pressure
outlet opening
liquid
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.)
Granted
Application number
EP85890097A
Other languages
German (de)
English (en)
Other versions
EP0159977A3 (en
EP0159977B1 (fr
Inventor
Franz Windisch
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.)
Boehler GmbH
Schoeller Bleckmann GmbH
Original Assignee
Vereinigte Edelstahlwerke AG
Boehler GmbH
Schoeller Bleckmann 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
Application filed by Vereinigte Edelstahlwerke AG, Boehler GmbH, Schoeller Bleckmann GmbH filed Critical Vereinigte Edelstahlwerke AG
Publication of EP0159977A2 publication Critical patent/EP0159977A2/fr
Publication of EP0159977A3 publication Critical patent/EP0159977A3/de
Application granted granted Critical
Publication of EP0159977B1 publication Critical patent/EP0159977B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/004—Severing by means other than cutting; Apparatus therefor by means of a fluid jet
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0591—Cutting by direct application of fluent pressure to work
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/364—By fluid blast and/or suction

Definitions

  • the invention relates to a liquid jet cutting device with a cutting head which can be supplied by means of a high pressure device via feeds with liquid medium at high pressure, with a housing and jet outlet opening and at least one organ for regulating the supply of the liquid medium to the outlet opening.
  • Such cutting devices have been in use in various designs for cutting a wide variety of materials for a long time.
  • the aim is to automate the cutting process, e.g. program-controlled coordinate guidance of the nozzle can take place over a good arranged on a cutting table.
  • Such automatic devices are 'of interest not only for objects with a complicated contour, but in particular also when e.g. a large number of similar elements, e.g. Smaller ring-shaped elements or the like are to be cut sequentially from a sheet of material.
  • the task was to create a facility that is as simple and safe as possible, in which the slightest changes in the cutting beam automatically result in a warning for the maintenance personnel and / or an interruption of the medium delivery to the cutting head.
  • the invention thus relates to a liquid jet cutting device of the type mentioned at the outset, which is characterized in that a gas space, preferably surrounded by a wall of a channel which is not touched by the medium jet, is arranged immediately downstream of the outlet opening and is penetrated by the medium jet, preferably via a pressure transmission line ,
  • a pressure sensor is connected to an encoder that can be set to a desired pressure threshold value, which in turn is connected to a warning device that can be actuated when the set pressure threshold value is reached or fallen below or exceeded, and / or actuating device for actuating the organ for regulating to block or switch off the
  • the supply of the medium to the jet outlet opening is operatively connected, mostly from the gas, preferably defined by a channel wall, through which the medium jet passes Airspace, for example a line, which in a simple embodiment can be connected, for example, to a mercury U-tube manometer, the poles of a circuit having a power supply being arranged, for example, in the leg with negative pressure, the
  • the pressure measurement sensor connected to the gas chamber close to the jet is arranged in the wall of the jet outlet channel itself.
  • Piezocrystals, membranes, strain gauges or the like may be mentioned as examples.
  • the advantage of such an embodiment is that practically only flexible electrical lines leave the cutting head which practically do not interfere.
  • the gas space traversed by the medium jet is preferably connected via an opening in the wall of the channel and via a pressure transmission line to a pressure sensor with a membrane-controlled switch.
  • the measuring tool is a membrane, the reaction of which to a specific setpoint can be set. If the setpoint is reached when the pressure changes, for example by falling below or exceeding it, the membrane will act connected microswitch opened and closed and thus a circuit for an actuator of a shut-off element in the medium supply system or a shut-off element of the high pressure apparatus, the switching point being changeable with an adjusting screw on the sensor. In this way, commercially available pressure switches can be set to the respective outlet opening cross-section, medium pressure and the medium composition used in each case.
  • the cutting head needs as little space as possible and a commercially available pressure switch is still used, it is convenient to place the transfer line inside the head, e.g. the nozzle holder is angled, i.e. as is preferred in the simplest case, at first approximately perpendicular to the beam direction, and then still inside the head, housing or the like, essentially parallel to it. This can be an advantage e.g. then be when the outlet end of the cutting head has its own drive device for exact traversing of contours.
  • liquid medium is brought to a pressure of up to several kbar and via line 87, 71 with flow control element 7, for example by means of a not shown, e.g. program-controlled servomotors supplied with cutting contours that can be guided by the cutting contour, the area of which has the outlet opening for the bundled cutting beam 21 is shown enlarged in the figure.
  • the liquid medium 2 under high pressure enters the. Interior 11 of a housing 10, which is closed at the bottom by means of a nut 12 which is screwed to housing 10 and a holder 12 held by it and having the nozzle outlet opening 13.
  • a nozzle-coaxial jet discharge channel 15 is arranged in the holder 12, with the wall 151 of which the cutting jet 21 pressed through the opening 13 does not come into contact and leaves an annular gas space 18 free.
  • a transfer line 16 branches off from the channel 15 from the opening 152, preferably approximately at a right angle. This line 16 then runs outwards through a sleeve 17 and further via a preferably flexible guide, e.g. through a pressure-resistant hose 19 and opens into a vacuum sensor 3 with membrane 31 and pressure threshold value adjustment screw 32.
  • the membrane 31 of sensor 3 is connected to a switch 4 as a transmitter.
  • Actuator supplying, a current source 51 circuit 5 current flow switched on and thus the actuator 6 controlled to actuate the shut-off element 7, which e.g. can be a three-way valve, so that the pressure medium can then be circulated via an interrupted return line 78 until the nozzle or the like has been replaced.
  • a current source 51 circuit 5 current flow switched on and thus the actuator 6 controlled to actuate the shut-off element 7, which e.g. can be a three-way valve, so that the pressure medium can then be circulated via an interrupted return line 78 until the nozzle or the like has been replaced.
  • a broken line indicates in the figure how line 5 'is led to a switch 81 of the high-pressure apparatus, with which the switch itself is switched off in order to interrupt the cutting beam in the event of its change, and furthermore an angular guidance of the transfer line with a branch parallel to the beam 16 'indicated in the holder 12 of the cutting head 1, which can simplify manipulation.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP85890097A 1984-04-25 1985-04-18 Dispositif de coupe à fluide sous pression Expired - Lifetime EP0159977B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0136784A AT380422B (de) 1984-04-25 1984-04-25 Fluessigkeitsstrahlschneideinrichtung
AT1367/84 1984-04-25

Publications (3)

Publication Number Publication Date
EP0159977A2 true EP0159977A2 (fr) 1985-10-30
EP0159977A3 EP0159977A3 (en) 1988-06-01
EP0159977B1 EP0159977B1 (fr) 1990-06-27

Family

ID=3512345

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85890097A Expired - Lifetime EP0159977B1 (fr) 1984-04-25 1985-04-18 Dispositif de coupe à fluide sous pression

Country Status (5)

Country Link
US (1) US4594924A (fr)
EP (1) EP0159977B1 (fr)
JP (1) JPS60228100A (fr)
AT (1) AT380422B (fr)
DE (1) DE3578396D1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992020456A1 (fr) * 1991-05-17 1992-11-26 Ingersoll-Rand Company Detecteur d'integrite pour ajutage de jet de fluide
US5232155A (en) * 1991-05-17 1993-08-03 Ingersoll-Rand Company Integrity sensor for fluid jet nozzle
FR2687090A1 (fr) * 1992-02-12 1993-08-13 Cdpsi Sarl Procede et machine de decoupe de pain par jets d'eau moyenne pression.
FR2699852A1 (fr) * 1992-12-29 1994-07-01 Gaz De France Procédé et dispositif d'usinage à jet de fluide haute pression asservi.
EP3012075A1 (fr) * 2014-10-20 2016-04-27 Andreas Perndorfer Procede de fonctionnement d'une installation de decoupage au jet d'eau et installation de decoupage au jet d'eau
CN107243935A (zh) * 2017-07-31 2017-10-13 重庆良能机械有限公司 一种棕垫切割装置

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5198144A (en) * 1988-04-01 1993-03-30 Kao Corporation Bathing preparation
US4934111A (en) * 1989-02-09 1990-06-19 Flow Research, Inc. Apparatus for piercing brittle materials with high velocity abrasive-laden waterjets
US5599223A (en) * 1991-04-10 1997-02-04 Mains Jr.; Gilbert L. Method for material removal
US5222332A (en) * 1991-04-10 1993-06-29 Mains Jr Gilbert L Method for material removal
US5339715A (en) * 1993-09-02 1994-08-23 Davidson Textron Inc. Programmable pressure control system
US6006637A (en) * 1995-04-18 1999-12-28 Kimberly-Clark Worldwide, Inc. Servo driven watercutter
US6155245A (en) * 1999-04-26 2000-12-05 Zanzuri; Clement Fluid jet cutting system and method
US6676039B2 (en) * 2000-02-07 2004-01-13 Framatome Anp, Inc. Pressurized abrasive feed and metering system for waterjet cutting systems
US6220529B1 (en) 2000-02-10 2001-04-24 Jet Edge Division Tc/American Monorail, Inc. Dual pressure valve arrangement for waterjet cutting system
US6932285B1 (en) 2000-06-16 2005-08-23 Omax Corporation Orifice body with mixing chamber for abrasive water jet cutting
US8444060B2 (en) * 2007-07-17 2013-05-21 Mi Yan Fuel injector with deterioration detection
WO2010109026A1 (fr) * 2009-03-23 2010-09-30 Emilio Mateu Sentamans Dispositif anti-collision pour tête de découpe par hydrojet
ES2420030B1 (es) * 2012-02-15 2013-12-19 Mirrioter, S.L. Boquilla de chorro de agua con maniobra neumática
US8904912B2 (en) 2012-08-16 2014-12-09 Omax Corporation Control valves for waterjet systems and related devices, systems, and methods
US9095955B2 (en) 2012-08-16 2015-08-04 Omax Corporation Control valves for waterjet systems and related devices, systems and methods
DE102014225247A1 (de) * 2014-12-09 2016-06-09 Robert Bosch Gmbh Verfahren zum Flüssigkeitsstrahlschneiden
US10252400B1 (en) 2015-09-29 2019-04-09 Flow International Corporation Methods for improving jet cutting performance via force sensing
BE1025457B1 (nl) * 2017-08-08 2019-03-11 D.E.C.O. Nv Waterstraalinrichting en methode voor het detecteren van een insnijding
US11554461B1 (en) 2018-02-13 2023-01-17 Omax Corporation Articulating apparatus of a waterjet system and related technology
US11719354B2 (en) 2020-03-26 2023-08-08 Hypertherm, Inc. Freely clocking check valve
KR20230005840A (ko) 2020-03-30 2023-01-10 하이퍼썸, 인크. 다기능 접속 종방향 단부들을 갖는 액체 제트 펌프를 위한 실린더
CN114178992B (zh) * 2021-12-22 2022-12-06 安徽理工大学 一种煤矿用可伸缩冷切割机的保护装置及使用方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3627065A (en) * 1970-05-19 1971-12-14 Donald R Murphy Well-drilling method and apparatus involving determination of pressure of drilling fluid
US4084748A (en) * 1977-01-04 1978-04-18 Jack W. Anderson Spray sensing system
US4298017A (en) * 1980-02-04 1981-11-03 Poly-Glas Systems Automatic fluid component shut off system
EP0084445A2 (fr) * 1982-01-15 1983-07-27 Nordson Corporation Procédé et appareil pour détecter l'obstruction d'une buse
US4420957A (en) * 1981-10-26 1983-12-20 Progressive Blasting Systems, Inc. Monitor method and apparatus for particle blasting equipment
WO1984002673A1 (fr) * 1983-01-13 1984-07-19 Bilskade Service Hb Agencement d'un equipement de sablage
EP0119057A2 (fr) * 1983-03-10 1984-09-19 Nordson Corporation Indicateur de défaut dans un distributeur de liquide

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3756106A (en) * 1971-03-01 1973-09-04 Bendix Corp Nozzle for producing fluid cutting jet
US4272017A (en) * 1976-03-22 1981-06-09 Franz Norman C Method and nozzle assembly for fluid jet penetration of a work material
US4228956A (en) * 1978-11-30 1980-10-21 Eaton Corporation Irrigation system and fluid dispersion nozzle
JPS5898156A (ja) * 1981-12-07 1983-06-10 Sugino Mach:Kk ノズル詰り検出方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3627065A (en) * 1970-05-19 1971-12-14 Donald R Murphy Well-drilling method and apparatus involving determination of pressure of drilling fluid
US4084748A (en) * 1977-01-04 1978-04-18 Jack W. Anderson Spray sensing system
US4298017A (en) * 1980-02-04 1981-11-03 Poly-Glas Systems Automatic fluid component shut off system
US4420957A (en) * 1981-10-26 1983-12-20 Progressive Blasting Systems, Inc. Monitor method and apparatus for particle blasting equipment
EP0084445A2 (fr) * 1982-01-15 1983-07-27 Nordson Corporation Procédé et appareil pour détecter l'obstruction d'une buse
WO1984002673A1 (fr) * 1983-01-13 1984-07-19 Bilskade Service Hb Agencement d'un equipement de sablage
EP0119057A2 (fr) * 1983-03-10 1984-09-19 Nordson Corporation Indicateur de défaut dans un distributeur de liquide

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992020456A1 (fr) * 1991-05-17 1992-11-26 Ingersoll-Rand Company Detecteur d'integrite pour ajutage de jet de fluide
US5232155A (en) * 1991-05-17 1993-08-03 Ingersoll-Rand Company Integrity sensor for fluid jet nozzle
FR2687090A1 (fr) * 1992-02-12 1993-08-13 Cdpsi Sarl Procede et machine de decoupe de pain par jets d'eau moyenne pression.
FR2699852A1 (fr) * 1992-12-29 1994-07-01 Gaz De France Procédé et dispositif d'usinage à jet de fluide haute pression asservi.
EP3012075A1 (fr) * 2014-10-20 2016-04-27 Andreas Perndorfer Procede de fonctionnement d'une installation de decoupage au jet d'eau et installation de decoupage au jet d'eau
CN107243935A (zh) * 2017-07-31 2017-10-13 重庆良能机械有限公司 一种棕垫切割装置

Also Published As

Publication number Publication date
ATA136784A (de) 1985-10-15
DE3578396D1 (de) 1990-08-02
US4594924A (en) 1986-06-17
EP0159977A3 (en) 1988-06-01
JPS60228100A (ja) 1985-11-13
AT380422B (de) 1986-05-26
EP0159977B1 (fr) 1990-06-27

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