CN101537400B - Cleaning device for paint spraying equipment - Google Patents
Cleaning device for paint spraying equipment Download PDFInfo
- Publication number
- CN101537400B CN101537400B CN 200810083045 CN200810083045A CN101537400B CN 101537400 B CN101537400 B CN 101537400B CN 200810083045 CN200810083045 CN 200810083045 CN 200810083045 A CN200810083045 A CN 200810083045A CN 101537400 B CN101537400 B CN 101537400B
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- Prior art keywords
- solvent
- spray
- air
- port
- drying
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- 238000004140 cleaning Methods 0.000 title claims abstract description 30
- 238000005507 spraying Methods 0.000 title claims description 17
- 239000003973 paint Substances 0.000 title abstract description 7
- 239000002904 solvent Substances 0.000 claims abstract description 75
- 239000007921 spray Substances 0.000 claims abstract description 59
- 238000001035 drying Methods 0.000 claims abstract description 17
- 238000001704 evaporation Methods 0.000 claims description 11
- 230000008020 evaporation Effects 0.000 claims description 11
- 238000010422 painting Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims 4
- 239000007924 injection Substances 0.000 claims 4
- 238000010304 firing Methods 0.000 claims 1
- 238000011084 recovery Methods 0.000 abstract description 8
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000001133 acceleration Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
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- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The invention is a device for drying paint spray guns used in automated manufacturing plants. The apparatus is an efficient two-stage solvent recovery system, thereby reducing operating and environmental costs. The device includes a body housing a solvent spray head for cleaning a solvent spray head inserted into the body through a contactless seal. There are also air jets for drying the articles once they have been cleaned. The other downwardly directed air jets create a low pressure region within the interior of the main body, thereby retaining the solvent laden air within the main body. The solvent laden air is directed to a solvent separator located below the main body for solvent recovery.
Description
Technical Field
The invention relates to my invention, "a contactless spraying device", disclosed in british patent GB2413513, 24 th, 1-month-2007.
Background
The present disclosure relates generally to industrial machines. More particularly, the present invention relates to, but is not limited to, improvements in a non-contact spray coating device. Cleaning machines for robotic painting industry lines use solvent recovery systems.
The existing methods of cleaning the spray equipment are spraying the solvent from the side perpendicular to the central axis of the applicator of the low pressure system or spraying the solvent upwards in a sealed high pressure system.
One problem with the prior art is that the applicator spray tip face or hood is not properly cleaned. The surface and supply holes and the cap are cleaned by adding a line of solvent with one or more spray heads and one-way valves contained in a single container that is sprayed toward the sprayer surface or the rotating applicator tip.
The present invention eliminates the following: gun spray and drip problems associated with automatic robotic paint spray guns and air nozzles on rotary automatic machines are caused by uncleaned tip faces and covers. Furthermore, the present invention has no high speed moving parts. Maintenance, and the possibility of static and rotational friction causing fires is reduced. Due to its flexibility, simplicity and efficiency of use and installation, the present invention has many advantages over the known art, namely, reduced manufacturing and maintenance costs while maintaining environmental standards.
THE ADVANTAGES OF THE PRESENT INVENTION
One advantage of the present invention is the ability to clean the surfaces of the air nozzle and the hood, as well as the surfaces of the cup and hood on a rotary applicator with an internal self-cleaning feature.
Another advantage of the present invention is compatibility with automatic color change and/or a running neutral cap (runcap) or cup soaks (cup soak).
Yet another advantage of the present invention is compatibility with electrostatic applicators and improved electrostatic paint transfer by cleaning equipment surfaces and covers to prevent problems with electrostatic painting techniques.
Yet another advantage of the present invention is the reduction of cleaning solvent usage, thereby reducing operating costs and improving the environmental performance of the cleaning operation. The standard cleaning time of the present invention is about 0.25 to 1.0 second. This increases production efficiency and reduces solvent usage. When the hood does not need cleaning, the amount of solvent used can be further reduced by directing only on the upward-facing spray head for short run color changes (short run color changes).
One advantage of the present invention is that the upward facing spray head utilizes fluid dynamics principles without the need for physical seals and high pressure areas.
Yet another advantage of the present invention is to help the old plant meet stringent environmental standards. The present invention uses a two-stage capture system comprising a single square-angle funnel, a single air velocity acceleration loop, and baffles to create a hydrodynamic effect to separate the air and solvent and capture the solvent to be recovered or properly disposed off-site, thus reducing the amount of VOC emitted to the atmosphere.
It can thus be seen that the present invention is a novel and significant technical advance in the art, and provides a cleaning device for paint spraying systems which successfully cleans and dries paint spraying equipment surfaces and their enclosures. By using a unique two-stage system, the present invention significantly increases solvent capture efficiency.
Disclosure of Invention
The present invention is an apparatus for drying articles. The device includes: a body for receiving an article, the body having a non-contact sealed opening for insertion of the article into the body for cleaning; and at least one spray head module combined with the air spray head assembly and the solvent spray head assembly for spraying cleaning solvent onto the article first when the article is inside the main body and then directing drying air onto the article when the article is positioned over the main body. The at least one spray head module is contained in the body.
The article is typically a robotic type painting apparatus typical of automated manufacturing plants.
The at least one spray head module includes a lower air passage terminating in a velocity port and an upper air passage terminating in an evaporation port. The speed port expels air downward in the body, thus relying on air movement to create a low pressure area in the body, thus creating the non-contact seal. The evaporation port discharges air upward for dry impingement of the articles, thereby causing solvent laden air to be drawn into the body through the contactless seal for solvent recovery.
The body includes a front wall, an opposing rear wall, a first side wall and an opposing second side wall, an open bottom, and a top wall having a contactless sealed opening. A pair of solvent separators (laminapers) is disposed below the main body for solvent recovery. The body is supported in a raised position by a support. The holder is closed by a cover.
The at least one spray head module is mounted to and in communication with an air velocity boost circuit for supplying compressed air. The air speed accelerating circuit is supplied through a compressed air supply line.
The at least one spray head module further includes an internal solvent passage terminating in an inwardly directed solvent spray head for spraying cleaning solvent onto the article as the article is inserted into the body. The internal solvent passage communicates with a solvent supply line.
The apparatus further includes an upward-directed solvent spray head that sprays cleaning solvent upward onto the article when the article is inserted into the main body, wherein the upward-directed solvent spray head is in communication with the solvent supply line.
In another example of the present invention, there is provided an apparatus for drying articles, the apparatus comprising: a body containing the article, the body having a non-contact sealed opening for insertion of the article into the body for cleaning; and at least one spray head module combined with the air spray head assembly and the solvent spray head assembly for spraying cleaning solvent onto the article first when the article is inside the main body and then directing drying air onto the article when the article is positioned over the main body. The at least one spray head module is contained in the body.
The apparatus also includes a two-stage solvent recovery system having a first stage and a second stage. The first stage includes an air velocity accelerating circuit adapted to force air downwardly into the body, thereby creating a low pressure region in the body by virtue of the air movement, with the result that solvent laden air is prevented from escaping the body and is directed towards the second stage. The second stage includes at least one pair of solvent separators disposed below the body such that the solvent laden air impinges upon the at least one pair of solvent separators with the result that solvent is separated from the air and directed toward the recovery tank.
Drawings
FIG. 1 is a schematic side view of a spray coating device cleaning apparatus according to one embodiment of the present invention, showing the spray coating device cleaning apparatus;
FIG. 2 is a schematic front view of the cleaning apparatus;
FIG. 3 is a cross-sectional view taken along line 8-8 of FIG. 1 with some components removed for clarity;
FIG. 4 is a schematic bottom view of the air velocity accelerating circuit assembly as viewed from the bottom opening of the cleaning apparatus;
FIG. 5 is a schematic bottom view of the spray module circuit assembly as viewed from the bottom opening of the cleaning apparatus;
FIG. 6 is an exploded view of the spray module head assembly;
FIG. 7 is an exploded view of the upward facing spray module head assembly;
figure 8 shows the upward facing spray head circuit assembly as viewed from the bottom opening of the cleaning apparatus.
Detailed Description
In one example of the invention, a unique contactless sealing system is included. The unique body includes: a solvent line with spray module head or heads and check valves, an air line with air velocity acceleration circuit and evaporative drying circuit, a solvent line with upwardly directed spray heads and check valves. The unique body is connected to a solvent recovery system.
With reference to the figures and in particular to figures 1 to 3, the cleaning device for a painting apparatus comprises a main body (generally designated by the reference numeral 1) made as a single manufactured piece of rigid material, preferably metallic rigid material. The body is defined by a front wall 9, a rear wall 10, a pair of side walls 11, a pair of solvent separators 12 and a top wall 13. A contactless sealing opening 2 is formed in the top wall. The body is inserted into the holder 3 and the holder 3 is closed by the cover 6.
The air velocity accelerating circuit supply line 5, the solvent spray head module supply line 7 and the solvent upward spray head supply line 28 are attached through the rear wall 10 and extend into the main body.
An evaporation port 14 located in the spray head module 17 delivers drying air from the air velocity boost circuit supply line 5.
Referring to the drawings, and in particular to fig. 3-5 and 8, the interior of the main body of the cleaning apparatus includes an air velocity acceleration circuit 15, a velocity port 16, a spray head module 17, a supply line 19, a spray nozzle 18, an upwardly facing spray head 34, an upwardly facing spray supply line 30, and a baffle 35. The baffle 35 is an opening formed between the sidewall 11 and the solvent separator 12.
Referring to fig. 6, the showerhead assembly includes: module 17, ball 22, spring 23, O-ring 24, nozzle 18, retainer 25, fastener 26, and fitting 7.
Referring to fig. 7-8, the upward facing spray head assembly includes: module 29, nozzle socket 34, ball 22, spring 23, O-ring 24, nozzle 18, fasteners 27, fitting 28, adjustable bracket 31, supply line 30, regulators 32 and 33.
The installation program of the spray gun apparatus to be cleaned is set to be inserted into the contactless seal opening 2, at which time the air speed accelerating circuit 15 is opened to create a low pressure area in the main body 1. When the spray gun apparatus tip reaches the predetermined depth, solvent is sprayed onto the spray gun apparatus tip through the spray head assembly while the spray gun apparatus tip moves upwardly out of the opening 2, at which time the solvent spray head is closed. The spray gun apparatus tip is then moved into a region where the evaporation ports 14 dry the spray gun apparatus with compressed air which is shaped to be drawn into the shaped opening 2. The evaporation port assembly is closed and the applicator is returned to its initial sequence.
Claims (4)
1. An apparatus for cleaning and drying articles, the apparatus comprising:
a body containing the article, the body having a top surface with an opening for receiving the article into the body for cleaning and drying;
an air velocity accelerating circuit which generates a low pressure region in the main body by virtue of air movement, thus generating a contactless sealing effect at the opening;
a first solvent side injection loop;
a second solvent upward injection loop; and
an evaporation drying loop is arranged on the upper portion of the tower body,
wherein,
the body includes a lower portion having a rectangular conical shape and a truncated open bottom, thereby accelerating air flow from the top surface opening toward the truncated open bottom;
the air velocity boost circuit includes at least one downwardly extending air passage terminating in a velocity port;
the first solvent side spray loop comprises at least one solvent side nozzle;
the second solvent upwardly spraying circuit comprises at least one solvent upwardly spraying nozzle; and is
The evaporative drying circuit includes at least one upwardly facing air channel terminating in an evaporative port,
wherein,
the velocity port, the at least one solvent side nozzle, and the evaporation port are integrated into a single showerhead module contained in the body;
the second solvent upward spray circuit is connected to the single spray head module.
2. The apparatus of claim 1, wherein the single showerhead module further comprises:
a first internal solvent passageway terminating at the solvent side nozzle;
a second internal solvent passageway terminating at said solvent upwardly projecting spray nozzle;
a first downward air channel terminating at the speed port; and
a second upwardly facing air channel terminating at the evaporation port.
3. An apparatus for cleaning and drying a robotic painting device from a robotic painting line, the apparatus comprising:
a body for receiving the robotic spray device, the body having a top surface with an opening for receiving the robotic spray device into the body for cleaning and drying;
an air velocity accelerating circuit which generates a low pressure region in the main body by virtue of air movement, thus generating a contactless sealing effect at the opening;
a first solvent side injection loop;
a second solvent upward injection loop; and
an evaporation drying loop is arranged on the upper portion of the tower body,
wherein,
the body includes a lower portion having a rectangular conical shape and a truncated open bottom, thereby accelerating air flow from the top surface opening toward the truncated open bottom;
the air velocity boost circuit includes at least one downwardly extending air passage terminating in a velocity port;
the first solvent side spray loop comprises at least one solvent side nozzle;
the second solvent upwardly spraying circuit comprises at least one solvent upwardly spraying nozzle; and is
The evaporative drying circuit includes at least one upwardly facing air channel terminating in an evaporative port,
wherein,
the velocity port, the at least one solvent side nozzle, and the evaporation port are integrated into a single showerhead module contained in the body;
the single showerhead module further comprises: a first internal solvent channel terminating at the solvent side nozzle, a second internal solvent channel terminating at the solvent upward-firing nozzle, a first downward-facing air channel terminating at the velocity port, and a second upward-facing air channel terminating at the evaporation port;
the second solvent upward spray circuit is connected to the single spray head module.
4. The apparatus according to claim 3, wherein said first solvent side spray loop comprises at least four side nozzles; and wherein the second solvent upward-spray circuit comprises at least four upward-spray nozzles; and wherein the evaporative drying circuit comprises at least four evaporative ports.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810083045 CN101537400B (en) | 2008-03-18 | 2008-03-18 | Cleaning device for paint spraying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810083045 CN101537400B (en) | 2008-03-18 | 2008-03-18 | Cleaning device for paint spraying equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101537400A CN101537400A (en) | 2009-09-23 |
| CN101537400B true CN101537400B (en) | 2013-11-06 |
Family
ID=41120918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810083045 Active CN101537400B (en) | 2008-03-18 | 2008-03-18 | Cleaning device for paint spraying equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101537400B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3551346A4 (en) * | 2016-12-09 | 2020-08-05 | James Laurence Doyle | DEVICE FOR CLEANING AND DRYING A SPRAY UNIT |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105127037A (en) * | 2015-07-17 | 2015-12-09 | 深圳市泰达机器人有限公司 | Full-automatic cleaning device for spraying tool |
| CN106000710A (en) * | 2016-07-14 | 2016-10-12 | 青岛金光鸿智能机械电子有限公司 | Tracking nozzle cleaning and waste collecting system |
| CA3044081A1 (en) | 2016-11-17 | 2018-05-24 | Philip Jessup | Apparatus for a low pressure non-contact cleaning of a paint applicator |
| CN107457127B (en) * | 2017-06-12 | 2021-01-08 | 东风本田汽车有限公司 | External cleaning device for multifunctional electrostatic coating atomizer |
| CN107321538A (en) * | 2017-08-16 | 2017-11-07 | 深圳市泰达机器人有限公司 | A kind of paint spraying apparatus nozzle automatic flushing device |
| CN114433399A (en) * | 2022-01-28 | 2022-05-06 | 杭州福瑞加工具科技有限公司 | Spray gun cleaning box and cleaning method thereof |
| CN115970963B (en) * | 2022-12-29 | 2023-09-22 | 淮安仲益电机有限公司 | Processing technology of rotating shaft body of gear motor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4827955A (en) * | 1986-01-20 | 1989-05-09 | Stern Leif E | Device for cleaning paint distributing channels in spray guns |
| DE10110098A1 (en) * | 2001-03-02 | 2002-09-05 | Karl-Heinz Baral | Cleaning device especially for vehicle paint spraying equipment has cleaning container with supply pipe and nozzle outlet directing cleaning medium towards part placed inside container for cleaning |
-
2008
- 2008-03-18 CN CN 200810083045 patent/CN101537400B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4827955A (en) * | 1986-01-20 | 1989-05-09 | Stern Leif E | Device for cleaning paint distributing channels in spray guns |
| DE10110098A1 (en) * | 2001-03-02 | 2002-09-05 | Karl-Heinz Baral | Cleaning device especially for vehicle paint spraying equipment has cleaning container with supply pipe and nozzle outlet directing cleaning medium towards part placed inside container for cleaning |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3551346A4 (en) * | 2016-12-09 | 2020-08-05 | James Laurence Doyle | DEVICE FOR CLEANING AND DRYING A SPRAY UNIT |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101537400A (en) | 2009-09-23 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |