EP1494823A1 - Verfahren zur entleerung einer versorgungsleitung f r beschi chtungsanlagen - Google Patents
Verfahren zur entleerung einer versorgungsleitung f r beschi chtungsanlagenInfo
- Publication number
- EP1494823A1 EP1494823A1 EP03724999A EP03724999A EP1494823A1 EP 1494823 A1 EP1494823 A1 EP 1494823A1 EP 03724999 A EP03724999 A EP 03724999A EP 03724999 A EP03724999 A EP 03724999A EP 1494823 A1 EP1494823 A1 EP 1494823A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- supply line
- coating agent
- pressure medium
- jacket
- hose
- 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- Withdrawn
Links
- 239000011248 coating agent Substances 0.000 title claims abstract description 74
- 238000000576 coating method Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims description 14
- 238000004140 cleaning Methods 0.000 claims abstract description 6
- 238000010422 painting Methods 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 9
- 239000004922 lacquer Substances 0.000 claims description 6
- 239000004809 Teflon Substances 0.000 claims description 4
- 229920006362 Teflon® Polymers 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000004952 Polyamide Substances 0.000 claims description 2
- 239000011324 bead Substances 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims description 2
- 229920002647 polyamide Polymers 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims description 2
- 238000003860 storage Methods 0.000 claims description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims 1
- 239000004810 polytetrafluoroethylene Substances 0.000 claims 1
- 239000003973 paint Substances 0.000 abstract description 31
- 239000007789 gas Substances 0.000 description 5
- 239000003570 air Substances 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000012080 ambient air Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
-
- 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
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
-
- 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
- B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
Definitions
- the invention relates to a method for emptying supply lines for supplying coating application devices of a coating system with coating agents, such as e.g. Colored lacquers, from one or more coating agent containers or stores, the supply line having a valve device which allows the volume of coating agent located in the supply line to be returned to a coating agent store or a supply ring line contrary to the flow direction during coating agent processing
- coating agents such as e.g. Colored lacquers
- Such supply lines can be, for example, paint ring lines from painting systems, but also paint supply lines leading away from these paint ring lines, which are arranged between the ring line and the paint change device or between the paint change device and the paint application device.
- the present invention is therefore based on the described prior art, the object of a method for cleaning a supply line of a coating system, such as to propose the paint ring line or the paint supply line of a painting system, which on the one hand can be realized with the least possible technical effort, and on the other hand also permits extensive recovery of the coating agent volume or coating volume contained in the supply line. Furthermore, it is also the object of the invention to propose a supply line suitable for this cleaning or emptying method.
- the object is achieved in that the coating agent is displaced from the supply line each time the coating agent is changed by a continuous deformation of the supply line in the direction of the coating agent store or to the supply ring line.
- the clear cross section of the supply line is minimized, for example, by progressively compressing the supply line in the direction of the coating agent store or the supply ring line over almost its entire length, and a coating agent volume located in the supply line is quasi squeezed or stripped from the supply line.
- the passage cross section of the supply line is reduced to zero or almost zero.
- the supply line is deformed or compressed by a pressure load on the outer circumference with a pressure medium, wherein in an advantageous embodiment of the invention a liquid or a gas, for example air, is preferably used as the pressure medium.
- the gaseous or liquid pressure medium is guided in a gap space sealed off from the environment between the supply line and a jacket pipe or jacket hose surrounding the supply line coaxially.
- the pressure medium is supplied and discharged into the gap space via connections or valves arranged in the area of the supply line ends.
- the gap space is flowed through against the direction of flow of the coating agent during processing of the coating agent by the pressure medium, so that the expanding gas or liquid column continuously feeds the supply line in the direction Supply ring line or coating agent container burned. This will strip out the supply line.
- the pressure medium is drained again from the gap between the supply line and the jacket hose or jacket pipe and the gap space is thereby depressurized.
- the inherent elasticity of the supply line then at least partially reverses the deformation of the supply line caused by the pressure medium.
- a rinsing liquid which is passed through the supply line to remove the coating agent residues that are still present supports the bending of the supply line and also the expulsion of the pressure medium from the gap space.
- the cleaning method according to the invention can also be applied to supply lines or supply ring lines, which is divided into several sections by valves, throttling points, conveying devices or other devices.
- the individual sections are also individually pressurized, ie the supply line is partially emptied between the devices that interrupt the line by pressurization.
- a sequential application of pressure to one another Adjacent sections then lead to progressive coating agent delivery to the coating agent container.
- a supply line which is suitable for carrying out the described emptying process is designed to be radially compressible by applying a pressure medium to the outer circumference in such a way that the coating agent cross-section of the supply line becomes almost zero (zero-cross-section).
- the supply line can be pressurized with pressure medium over almost its entire length. By applying pressure medium to the supply line over almost the entire length of the supply line, the entire volume of coating agent is displaced or expressed from the supply line.
- the supply line can also be made for the supply line to be able to be folded into one another.
- a remaining clear coating agent passage cross section is as small as possible, i.e. the volume of coating agent remaining in the supply line is also as small as possible and the coating agent displacement from the supply line is as effective as possible.
- the interlocking of the supply line when pressure is applied can be further supported by longitudinal beads, reinforcements, etc. arranged on the supply line.
- the supply line consists of a flexible, radially compressible, coating agent-carrying hose which is surrounded by a jacket hose or jacket tube, the gap or annular space between the coating agent-carrying hose and the jacket hose or jacket pipe being connected to a valve device, so that this gap space can be acted upon by a pressure medium.
- This pressure medium introduced into the gap space exerts a compressive force on the outer circumference of the hose and changes it its outer contour, ie the hose is compressed.
- the pressure medium also acts on the inner circumference of the jacket tube or jacket tube
- the radial deformation resistance, in particular the resistance to expansion, of the jacket tube or jacket tube is greater than the radial deformation resistance, in particular the compressibility of the Supply line. This ensures that the pressure acting on the supply line is not reduced by an expansion of the jacket hose and the resulting increase in the gap volume before the supply line is completely compressed.
- valve device for the application of pressure medium to the gap space, in relation to the coating medium flow direction is arranged in the area of the end of the supply line assigned to the coating medium application device, and the pressure medium is applied to the gap space against the direction of the coating medium flow direction Coating agent processing takes place.
- a closed pressure medium circuit the gap between the supply line and the jacket hose or jacket pipe is sealed gas-tight or at least liquid-tight from the environment, and the supply and discharge of the pressure medium is separated from one another Intake and exhaust valves accomplished.
- an open pressure medium circuit can also be provided, ie the air is blown off into the ambient air via a silencer after the gap has completely flowed through, at the end of the supply line or of a supply line section.
- Another advantageous individual embodiment provides for the jacket hose or jacket pipe and the supply line to be arranged coaxially with one another, the inner circumference of the jacket hose almost corresponding to the outer circumference of the supply line.
- FIG. 1 shows a schematic, shortened illustration of a supply line according to the invention for a painting installation without pressurizing medium in longitudinal section;
- Figure 2 is a schematic, shortened representation of a supply line according to the invention for a painting system with pressure medium applied in longitudinal section;
- Figure 3 cross section of a supply line according to the invention for a painting system without pressurizing medium;
- Figure 4 cross section of the supply line according to the invention for a painting system with pressure medium
- FIG. 1 shows a possible embodiment of a supply device (1) which essentially consists of the flexible, paint-carrying supply line (3) according to the invention, a jacket hose (2) surrounding the supply line (3), and an inlet valve (4) connected to this jacket hose (2). , an outlet valve (5) connected to the jacket hose (2), and two sealing caps (6) which cover the gap or annular space (7) between the jacket hose (2) and the paint-carrying hose (3) at both ends of the supply line Seal the environment.
- the paint-carrying supply line (3) of the supply device (1) is first deformed or compressed in the area of the inlet valve (4). This deformation or the compression of the paint-carrying hose (3) is continued over the entire length of the supply line (3) when the medium is fed in further by the pressure medium column building up.
- FIG. 4 shows the supply line (3) charged with the pressure medium gas in cross section.
Landscapes
- Spray Control Apparatus (AREA)
- Nozzles (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Description
Claims
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10216581 | 2002-04-14 | ||
| DE10216581A DE10216581B4 (de) | 2002-04-14 | 2002-04-14 | Versorgungsleitung für Beschichtungsanlagen, insbesondere Lackieranlagen |
| DE10312973 | 2003-03-24 | ||
| DE10312973A DE10312973A1 (de) | 2002-04-14 | 2003-03-24 | Verfahren zur Entleerung bzw. Reinigung von Versorgungsleitungen für Beschichtunganlagen, insbesondere Lackieranlagen |
| PCT/EP2003/003736 WO2003086671A1 (de) | 2002-04-14 | 2003-04-10 | Verfahren zur entleerung einer versorgungsleitung für beschichtungsanlagen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1494823A1 true EP1494823A1 (de) | 2005-01-12 |
Family
ID=29251759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03724999A Withdrawn EP1494823A1 (de) | 2002-04-14 | 2003-04-10 | Verfahren zur entleerung einer versorgungsleitung f r beschi chtungsanlagen |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7100887B2 (de) |
| EP (1) | EP1494823A1 (de) |
| AU (1) | AU2003231330A1 (de) |
| DE (2) | DE10216581B4 (de) |
| WO (1) | WO2003086671A1 (de) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10313695B4 (de) | 2003-03-27 | 2005-03-03 | LacTec Gesellschaft für moderne Lackiertechnik mbH | Farbleitung |
| DE102004002324B3 (de) * | 2004-01-16 | 2005-01-13 | Lac Tec GmbH Gesellschaft für moderne Lackiertechnik | Farbleitung |
| DE102004016951A1 (de) | 2004-04-06 | 2005-11-10 | Dürr Systems GmbH | Verfahren zum Fördern eines Beschichtungsmaterials und Beschichtungsmaschine |
| DE102004056789A1 (de) * | 2004-11-24 | 2006-06-01 | Eisenmann Maschinenbau Gmbh & Co. Kg | Elektrische Trenneinheit für eine Fluid-Förderleitung |
| DE102004060110B3 (de) * | 2004-12-13 | 2005-11-10 | Jung, Lothar R. | Einsteckhülse für zusammendrückbare Versorgungsleitungen für Beschichtungsanlagen, insbesondere Lackieranlagen |
| DE202006021283U1 (de) | 2005-10-07 | 2014-10-02 | Dürr Systems GmbH | Beschichtungsmittel-Versorgungseinrichtung |
| NL1037456C2 (nl) * | 2009-11-09 | 2011-05-11 | Lely Patent Nv | Leiding en een werkwijze voor het reinigen van een leiding. |
| GB2507063A (en) * | 2012-10-17 | 2014-04-23 | Brian George Knight | Spray Apparatus with Inflatable Bladder to Purge Pipe-work |
| DE102015005493B4 (de) * | 2015-04-30 | 2024-03-21 | Airbus Defence and Space GmbH | Fluidleitung |
| DE102016115811A1 (de) * | 2016-08-25 | 2018-03-01 | Schäfer E. Technik u. Sondermaschinen GmbH | Fördereinrichtung |
| CN109629660B (zh) * | 2018-12-24 | 2021-05-28 | 宁波驰翔机电科技有限公司 | 带充气疏通装置的排污管 |
| CN112228639B (zh) * | 2020-03-11 | 2022-09-13 | 陕西创智坤迪光电科技有限公司 | 一种陶瓷橡胶制复合管的使用控制方法 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE937321C (de) * | 1952-06-05 | 1956-01-05 | Internat Ytong Stabalite Compa | Rohrleitung |
| US3485472A (en) * | 1965-04-26 | 1969-12-23 | Michael J Bozich | Valve means having collapsible elastic sleeve |
| US3397860A (en) * | 1966-04-19 | 1968-08-20 | Case Co J I | Valve for concrete pump or similar machine |
| US3885769A (en) * | 1973-06-20 | 1975-05-27 | Stoody Co | Variable flow-control valve |
| DE2849261C2 (de) * | 1978-11-14 | 1983-05-05 | Ransburg-Gema AG, 9015 St.Gallen | Verfahren und Einrichtung zum Sprühbeschichten von Gegenständen mit Pulver |
| DE3913000A1 (de) * | 1988-04-20 | 1989-12-07 | Lenhardt Maschinenbau | Vorrichtung zum abgeben hochviskoser, pastoeser, kompressibler substanzen |
| JPH0722743B2 (ja) * | 1991-06-21 | 1995-03-15 | 田辺製薬株式会社 | 配管内面の自動洗浄装置 |
| DE4131208A1 (de) * | 1991-09-19 | 1993-03-25 | Dirk Pitzel | Verfahren und vorrichtung zum foerdern einer fluessigkeit und eines anderen fliessfaehigen mediums durch dieselbe foerderleitung |
| JPH06246196A (ja) * | 1993-02-22 | 1994-09-06 | I T M Kk | 粉体供給装置、静電粉体塗装装置及び粉体流量計測装置 |
| US5992818A (en) * | 1994-04-15 | 1999-11-30 | Fred J. Martin | Control valve and method of making and installing |
| US5776113A (en) * | 1996-03-29 | 1998-07-07 | Becton Dickinson And Company | Valved PRN adapter for medical access devices |
-
2002
- 2002-04-14 DE DE10216581A patent/DE10216581B4/de not_active Expired - Fee Related
-
2003
- 2003-03-24 DE DE10312973A patent/DE10312973A1/de not_active Ceased
- 2003-04-10 US US10/511,400 patent/US7100887B2/en not_active Expired - Fee Related
- 2003-04-10 EP EP03724999A patent/EP1494823A1/de not_active Withdrawn
- 2003-04-10 WO PCT/EP2003/003736 patent/WO2003086671A1/de not_active Ceased
- 2003-04-10 AU AU2003231330A patent/AU2003231330A1/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO03086671A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10216581A1 (de) | 2003-10-30 |
| DE10216581B4 (de) | 2006-07-20 |
| AU2003231330A1 (en) | 2003-10-27 |
| DE10312973A1 (de) | 2004-10-07 |
| WO2003086671A1 (de) | 2003-10-23 |
| US7100887B2 (en) | 2006-09-05 |
| US20050126598A1 (en) | 2005-06-16 |
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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 |
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| 17P | Request for examination filed |
Effective date: 20041023 |
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| AK | Designated contracting states |
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| GRAP | Despatch of communication of intention to grant a patent |
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| GRAS | Grant fee paid |
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| 19U | Interruption of proceedings before grant |
Effective date: 20060715 |
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| 19W | Proceedings resumed before grant after interruption of proceedings |
Effective date: 20070201 |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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| 18D | Application deemed to be withdrawn |
Effective date: 20081101 |