CN108527166A - Fluid jet or water-jet cutting device - Google Patents

Fluid jet or water-jet cutting device Download PDF

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Publication number
CN108527166A
CN108527166A CN201810165650.XA CN201810165650A CN108527166A CN 108527166 A CN108527166 A CN 108527166A CN 201810165650 A CN201810165650 A CN 201810165650A CN 108527166 A CN108527166 A CN 108527166A
Authority
CN
China
Prior art keywords
pressure
fluid
valve
fluid jet
nozzle
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.)
Pending
Application number
CN201810165650.XA
Other languages
Chinese (zh)
Inventor
弗朗茨·特里布
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.)
Bft Ltd
BFT GmbH
Original Assignee
Bft Ltd
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 Bft Ltd filed Critical Bft Ltd
Publication of CN108527166A publication Critical patent/CN108527166A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
    • B24C1/04—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
    • B24C1/045—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass for cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C5/00—Devices or accessories for generating abrasive blasts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C5/00—Devices or accessories for generating abrasive blasts
    • B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
    • B24C5/04—Nozzles therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
    • B24C7/0007—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/26—Perforating by non-mechanical means, e.g. by fluid jet
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B11/00—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation
    • F04B11/0008—Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation using accumulators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/02—Stopping, starting, unloading or idling control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Abstract

The present invention relates to a kind of fluid jet or water-jet cutting devices (1) comprising the hydraulic pressure unit (2) that can be at least run if necessary with two different pressure, at least one pulsation damper (3) with valve (31,32) in the region of pressure duct (4) and the cutting head (5) with nozzle (51) and the mixing arrangement (52) for being used for abrasive (53).In order to improve the generation of controllability and improvement notch and in order to improve governing speed, arranged according to the present invention is, it is disposed with the shut-off valve (54) that can switch, i.e., so-called stop valve in the feed line (4) for the nozzle (51) of fluid led in cutting head (5) or the region of pressure duct.

Description

Fluid jet or water-jet cutting device
Technical field
The present invention relates to a kind of fluid jet or water-jet cutting devices comprising can at least be transported with two different pressure It capable hydraulic pressure unit, at least one pulsation damper with valve in the region of pressure duct and carries nozzle and is used for The cutting head of the mixing arrangement of abrasive.
Background technology
The fluid jet or water-jet cutting device of newer structural type utilize tool mostly always with high-voltage operation There is the hydraulic pressure unit of pressure converter to work.
According to the prior art, pulsation damper is used in the region of pressure duct in these cutter devices, to subtract The safety of pressure oscillation, raising facility component in small fluid and the cutting position for ensureing optimization.
Hard and/or crisp cutting material with big thickness is cut with fluid jet mostly, which is contaminated with mill Lose agent, such as thin pomegranate stone sand.
The component for expecting to form is cut or in order to manufacture the work with internal portion of leaving a blank by larger area in order to make Part is needed for cutting material to be created for that hollow portion should be originated, can be guided out with angled seamed edge from the starting hollow portion Accurate sharp keen seamed edge notch.In order to form this kind of hollow portion (also referred to as punching puncture portion), when fluid jet shapes Need much smaller pressure more always compared with cutting process.
The known equipment for cutting cutting material with fluid jet, such as disclosed in 10 2,015 104 245 B3 of DE As, especially have as a drawback that, that is, high-pressure liquid line and discharge nozzle, which are in, directly to be fluidly connected, to Fluid jet is formed in cutting head.
Although pulsation damper can be attached on fluid circuit by switching valve and can be disengaged in a short time, Be reduce or improve pressure in fluid circuit and thus be that (it is produced by pressure for pressure on discharge nozzle in cutting head Raw unit is realized) need higher time consumption.And pressure is in an unfavorable mannner to by nozzle in reduction or raising fluid circuit The composition of the fluid jet of formation has an adverse effect.
In the case where adding abrasive, forming of the fluid jet after nozzle and before mixing chamber has conclusive Meaning, this is because abrasion grain is drawn onto by negative pressure in fluid jet in this region.
In addition, high operating pressure required in fluid circuit can only be by the pressure realized by pressure generating unit The gradual of power promotion approaches to implement, this is because will avoid the dangerous arteries and veins in high-pressure area under any circumstance It is dynamic.
Invention content
Now the object of the present invention is to overcome these disadvantages in the prior art and provide a kind of fluid jet cutting dress It sets, can at least be run with two different operating pressures with no transient mode.
The purpose is accomplished by the following way in the case of cutter device of the type mentioned at the beginning, that is, leads in fluid The shut-off valve that can switch, i.e., so-called stop valve are disposed in the region of the feed line of nozzle in cutting head.
The advantages of realizing through the invention is mainly obtained by following：The pressure in pressure duct is realized in the case of following Power is built and pressure is reduced, that is, in the case where not loaded simultaneously to nozzle with the different pressures of liquid.
As can be arranged in an advantageous manner, that is, hydraulic pressure unit has pressure converter, such as As known in 3012453 A2 of AT 512322 B1 and EP is basic, which includes that can control in low-pressure side Or the hydraulic unit driver that can be adjusted, the motor pumped namely for constant delivery, then high pressure can be realized within a short period of time Pressure change in pipeline.
For operation and for the low pressure oscillation in fluid high-pressure pipeline, it may be advantageous to one or more A pulsation damper is connect with pressure duct by the switching valve that can be controlled in side by check-valves and in the other side respectively.
It is temporarily realized in an advantageous manner in the case of shut-off valve or stop valve to be closed in the pressure duct of fluid Pressure is reduced, it may be advantageous to be disposed with the relief valve that can switch before cutting head in fluid high-pressure pipeline.
It in one design of the present invention, can particularly advantageously, in fluid high-pressure pipeline in cutting head It, can be from the pump installation for reducing pressure via the shut-off valve that can switch after stop valve but before nozzle Import fluid.
It is advantageous that including for supplying the mechanism with the fluid for reducing pressure for high-pressure fluid At least one pump installation and the check-valves in the transfer pipeline for leading to shut-off valve.
By the fluid jet or water-jet cutting device of this kind of design, can use with the pump installation for reducing pressure And hydraulic pressure unit, they can cause the constant discharge pressure in fluid.
Description of the drawings
The present invention will be elaborated by attached drawing, and attached drawing only shows a kind of implementation path.In the accompanying drawings：
Fig. 1 shows fluid jet or water-jet cutting device with the shut-off valve according to the present invention in cutting head.
Fig. 2 shows the pumps of itself with the shut-off valve according to the present invention in cutting head and the pressure with reduction The fluid jet or water-jet cutting device of device.
Specific implementation mode
The fluid jet cutting apparatus 1 with hydraulic pressure unit 2 is shown in FIG. 1, hydraulic pressure unit includes mainly electric control Device 220, motor 221, constant delivery pump 222 and pressure converter 21, to establish high-pressure fluid in pipeline 4.
Pulsation damper 3 with check-valves 31 and the switching valve 32 that can be controlled is in the region of pressure duct 4, high pressure On the one hand pipeline is connect with the relief valve 61 that can switch, on the other hand connect with cutting head 5.
Cutting head 5 has the nozzle 51 of shut-off valve 54 and postposition in the transport zone of high-pressure fluid and for denuding The mixing chamber 52 of agent 53.
Pressure change in the fluid circuit 4 realized by hydraulic pressure unit 2 can make cutting by closing shut-off valve 54 It is out of service.
The device similar with Fig. 1 is shown in FIG. 2, difference is, the device have for supply with relative to The mechanism 7 of the fluid of smaller pressure for high-pressure fluid.
The cutting head branch with pressure duct, the branch between shut-off valve 54 and nozzle 51 lead to for supplying low pressure The shut-off valve 71 of the mechanism 7 of fluid, wherein check-valves 72 is disposed in pressure piping 41, in the case of high-voltage operation The connection with pump installation 70 that may be present is all eliminated under any circumstance.

Claims (6)

1. a kind of fluid jet or water-jet cutting device (1) comprising can at least be transported if necessary with two different pressure Capable hydraulic pressure unit (2), at least one pulsation damper (3) with valve (31,32) in the region of pressure duct (4) with And the cutting head (5) of the mixing arrangement (52) with nozzle (51) and for abrasive (53), which is characterized in that in the logical of fluid It is disposed with the shut-off valve that can switch in the feed line (4) of nozzle (51) into cutting head (5) or the region of pressure duct (54), i.e., so-called stop valve.
2. fluid jet cutting apparatus according to claim 1, which is characterized in that the hydraulic pressure unit (2) has pressure Converter (21), the pressure converter is as example as known in 3012453 A2 of AT 512322 B1 and EP is basic, low It includes hydraulic unit driver (220) can controlling or can adjusting to press side, and the motor of (222) is pumped namely for constant delivery (221)。
3. fluid jet cutting apparatus according to claim 1 or 2, which is characterized in that one or more pulsation dampers (3) side by check-valves (31) and the other side by the switching valve (32) that can be controlled respectively with the pressure duct (4) it connects.
4. fluid jet cutting apparatus as claimed in any of claims 1 to 3, which is characterized in that in fluid high-pressure In pipeline (4) relief valve (6) that can switch is disposed with before the cutting head (5).
5. fluid jet cutting apparatus as claimed in any of claims 1 to 4, which is characterized in that in the fluid In pressure duct (4) in the cutting head (5) after the stop valve (54) but before the nozzle (51), warp Fluid can be imported from the pump installation for reducing pressure by the shut-off valve (71) that can switch.
6. fluid jet cutting apparatus according to claim 5, which is characterized in that for supplying with relative to high-pressure spray The mechanism (7) that the fluid of pressure is reduced for body includes at least one pump installation (70) and in the conveying for leading to shut-off valve (71) Check-valves (72) in pipeline (41).
CN201810165650.XA 2017-03-01 2018-02-28 Fluid jet or water-jet cutting device Pending CN108527166A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA50162/2017 2017-03-01
ATA50162/2017A AT519687A1 (en) 2017-03-01 2017-03-01 Fluid jet or water jet cutter

Publications (1)

Publication Number Publication Date
CN108527166A true CN108527166A (en) 2018-09-14

Family

ID=61132307

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810165650.XA Pending CN108527166A (en) 2017-03-01 2018-02-28 Fluid jet or water-jet cutting device

Country Status (4)

Country Link
EP (1) EP3369527A1 (en)
KR (1) KR20180100480A (en)
CN (1) CN108527166A (en)
AT (1) AT519687A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109139575A (en) * 2018-09-24 2019-01-04 佛山市元利精密机械有限公司 A kind of Water Cutting equipment just dismounted
CN113966437A (en) * 2019-06-14 2022-01-21 伍德高压技术有限公司 Device and method for supplying a pressurized medium for injecting a high-pressure process

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018124978A1 (en) * 2018-10-10 2020-04-16 Alfred Kärcher SE & Co. KG Apparatus and method for providing pressurized fluid to multiple consumers

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142368A (en) * 1976-10-28 1979-03-06 Welko Industriale S.P.A. Hydraulic system for supplying hydraulic fluid to a hydraulically operated device alternately at pressures of different value
JPH033799A (en) * 1989-05-30 1991-01-09 Kawasaki Heavy Ind Ltd Water jetting device equipped with pressure reduction device of high pressure water
EP1825958A1 (en) * 2006-02-22 2007-08-29 Böhler Hochdruktechnik GmbH Device for shearing equipment with a water jet or abrasive water jet
US20130167951A1 (en) * 2011-12-30 2013-07-04 Bhdt Gmbh Hydraulic drive for a pressure booster
EP3012075A1 (en) * 2014-10-20 2016-04-27 Andreas Perndorfer Method for operating a facility for waterjet cutting and facility for water jet cutting
DE102015104245B3 (en) * 2015-03-20 2016-07-21 Thyssenkrupp Ag Apparatus and method for cutting a material to be cut by means of a fluid
EP3059458A1 (en) * 2015-02-23 2016-08-24 Reinhard Gruber Method and device for operating a hydraulic high pressure system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5205481B2 (en) * 2011-02-02 2013-06-05 株式会社スギノマシン Abrasive water jet machine
CN105297603A (en) * 2014-07-04 2016-02-03 桂林电子科技大学 Water jet cutting device for repairing craters in airport runway
AT515937B1 (en) 2014-10-20 2016-01-15 Bhdt Gmbh Hydraulic drive for a pressure intensifier

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142368A (en) * 1976-10-28 1979-03-06 Welko Industriale S.P.A. Hydraulic system for supplying hydraulic fluid to a hydraulically operated device alternately at pressures of different value
JPH033799A (en) * 1989-05-30 1991-01-09 Kawasaki Heavy Ind Ltd Water jetting device equipped with pressure reduction device of high pressure water
EP1825958A1 (en) * 2006-02-22 2007-08-29 Böhler Hochdruktechnik GmbH Device for shearing equipment with a water jet or abrasive water jet
US20130167951A1 (en) * 2011-12-30 2013-07-04 Bhdt Gmbh Hydraulic drive for a pressure booster
EP3012075A1 (en) * 2014-10-20 2016-04-27 Andreas Perndorfer Method for operating a facility for waterjet cutting and facility for water jet cutting
EP3059458A1 (en) * 2015-02-23 2016-08-24 Reinhard Gruber Method and device for operating a hydraulic high pressure system
DE102015104245B3 (en) * 2015-03-20 2016-07-21 Thyssenkrupp Ag Apparatus and method for cutting a material to be cut by means of a fluid

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109139575A (en) * 2018-09-24 2019-01-04 佛山市元利精密机械有限公司 A kind of Water Cutting equipment just dismounted
CN113966437A (en) * 2019-06-14 2022-01-21 伍德高压技术有限公司 Device and method for supplying a pressurized medium for injecting a high-pressure process

Also Published As

Publication number Publication date
EP3369527A1 (en) 2018-09-05
KR20180100480A (en) 2018-09-11
AT519687A1 (en) 2018-09-15

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SE01 Entry into force of request for substantive examination
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WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20180914

WD01 Invention patent application deemed withdrawn after publication