CN102114458A - On-line detection control system and control method thereof for powder coating thickness - Google Patents
On-line detection control system and control method thereof for powder coating thickness Download PDFInfo
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- CN102114458A CN102114458A CN2011100403935A CN201110040393A CN102114458A CN 102114458 A CN102114458 A CN 102114458A CN 2011100403935 A CN2011100403935 A CN 2011100403935A CN 201110040393 A CN201110040393 A CN 201110040393A CN 102114458 A CN102114458 A CN 102114458A
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Abstract
The invention relates to an on-line detection control system and control method thereof for powder coating thickness. The on-line detection control system comprises a programmable logic controller (PLC) characterized by being conducted with an optical fiber sensor; when an empty can enters a detection area and the optical fiber sensor detects the empty can, the PLC enables a laser sensor and a laser signal amplifier to enter an operating mode; when the empty can enters a laser sensor area, the laser sensor sends laser signals for detecting the coating thickness of the empty can; when the empty can is qualified after detection, the qualified empty can directly enters the next process for baking; and when the empty can is disqualified after detection, the laser signal amplifier outputs disqualification signals to the PLC, the PLC outputs stop signals to a host machine to stop feeding, and simultaneously an actuating mechanism delivers the disqualified empty can to a rejection collecting area. The on-line detection control system provided by the invention can detect empty cans with thin powder, local missed coating and no powder coating on line, and accurately discharge the disqualified empty cans, thus greatly improving the production efficiency.
Description
Technical field
The present invention relates to a kind of powder coating thickness online detection and control system and control method thereof.
Background technology
After the slack tank welding, welded seam need be carried out the powder spraying, and the powdery coating is solidified through the high-temperature baking levelling, becomes final coating; Tank body after the powder spraying is corrosion-resistant, ageing-resistant, and cost is lower; But in the powder spraying process, thin partially, the local slack tank that leaks spraying and do not have the powder spraying of the dusty spray that can occur manually can't be chosen, and causes serious product quality problem.
Summary of the invention
The object of the present invention is to provide a kind of powder coating thickness online detection and control system and control method thereof, this powder coating thickness online detection and control system is simple in structure, this powder coating thickness online detection and control method can onlinely detect thin partially, the local slack tank that leaks spraying and do not have the powder spraying of powder, and defective slack tank accurately discharged, result of use is good, can enhance productivity greatly.
To achieve these goals, technical scheme of the present invention is: a kind of powder coating thickness online detection and control system, comprise Programmable Logic Controller PLC, it is characterized in that: also comprise Fibre Optical Sensor, laser sensor and laser signal amplifier, described PLC is connected with the Fibre Optical Sensor that is used to survey slack tank, described PLC control laser sensor sends the laser signal that detects the slack tank coating layer thickness, described PLC is connected with the laser signal amplifier that is used for the laser signal contrast, described laser signal amplifier output comparing result is to PLC, described PLC controls executing agency and defective slack tank is got rid of outside production line the feeding of described PLC main control system.
Described laser sensor is for adjusting the adjustable miniature laser sensor of laser beam size.
The present invention also provides corresponding a kind of powder coating thickness online detection and control method, comprise PLC, it is characterized in that: described PLC conducting Fibre Optical Sensor, when slack tank enters detection zone, when described Fibre Optical Sensor detected slack tank, described PLC made laser sensor and laser signal amplifier enter duty; When slack tank entered the laser sensor district, described laser sensor sent laser signal, so that the slack tank coating layer thickness is detected; When to detect slack tank be qualified, qualified slack tank directly entered next process and dries; When to detect slack tank be defective, described laser signal amplifier was exported defective signal and is given PLC, and described PLC output stop signal gives main frame to stop feeding, and executing agency delivers to the defective products collecting region with defective slack tank simultaneously.
Described laser sensor is for adjusting the adjustable miniature laser sensor of laser beam size.
The present invention has the following advantages: (1) this powder coating thickness online detection and control system is simple in structure, and result of use is good; (2) adopt adjustable miniature laser sensor, can adjust the laser beam size coating width, thickness are detected; (3) this powder coating thickness online detection and control method can onlinely detect thin partially, the local slack tank that leaks spraying or do not have the powder spraying of powder, and defective slack tank is accurately discharged production line; (3) reduce labour intensity greatly, enhance productivity, reduce the wastage.
Description of drawings
Fig. 1 is the system block diagram of the embodiment of the invention.
Fig. 2 is the workflow diagram of the embodiment of the invention.
The specific embodiment
With reference to figure 1, a kind of powder coating thickness online detection and control system, comprise PLC, it is characterized in that: also comprise Fibre Optical Sensor, laser sensor and laser signal amplifier, described PLC is connected with the Fibre Optical Sensor that is used to survey slack tank, described PLC control laser sensor sends the laser signal that detects the slack tank coating layer thickness, described PLC is connected with the laser signal amplifier that is used for the laser signal contrast, described laser signal amplifier output comparing result is to PLC, described PLC controls executing agency and defective slack tank is got rid of outside production line the feeding of described PLC main control system.
Above-mentioned laser sensor is for adjusting the adjustable miniature laser sensor of laser beam size.
With reference to figure 2, the present invention also provides corresponding a kind of powder coating thickness online detection and control method, comprise PLC, it is characterized in that: described PLC conducting Fibre Optical Sensor, when slack tank enters detection zone, when described Fibre Optical Sensor detected slack tank, described PLC made laser sensor and laser signal amplifier enter duty; When slack tank entered the laser sensor district, described laser sensor sent laser signal, so that the slack tank coating layer thickness is detected; When the detection slack tank was qualified (OK), qualified slack tank directly entered next process and dries; When the detection slack tank is defective (NG), described laser signal amplifier is exported defective signal and is given PLC, described PLC output stop signal gives main frame to stop feeding, and executing agency delivers to the defective products collecting region with defective slack tank simultaneously, so continual work that moves in circles.
Above-mentioned executing agency is an air blowing executing agency, and described air blowing executing agency blows out production line with defective slack tank, and defective slack tank is blown into the defective products collecting region.
Above-mentioned laser sensor is for adjusting the adjustable miniature laser sensor of laser beam size.
The above only is preferred embodiment of the present invention, and all equalizations of being done according to the present patent application claim change and modify, and all should belong to covering scope of the present invention.
Claims (4)
1. powder coating thickness online detection and control system, comprise PLC, it is characterized in that: also comprise Fibre Optical Sensor, laser sensor and laser signal amplifier, described PLC is connected with the Fibre Optical Sensor that is used to survey slack tank, described PLC control laser sensor sends the laser signal that detects the slack tank coating layer thickness, described PLC is connected with the laser signal amplifier that is used for the laser signal contrast, described laser signal amplifier output comparing result is to PLC, described PLC controls executing agency and defective slack tank is got rid of outside production line the feeding of described PLC main control system.
2. powder coating thickness online detection and control system according to claim 1 is characterized in that: described laser sensor is for adjusting the adjustable miniature laser sensor of laser beam size.
3. powder coating thickness online detection and control method, comprise PLC, it is characterized in that: described PLC conducting Fibre Optical Sensor, when slack tank enters detection zone, when described Fibre Optical Sensor detected slack tank, described PLC made laser sensor and laser signal amplifier enter duty; When slack tank entered the laser sensor district, described laser sensor sent laser signal, so that the slack tank coating layer thickness is detected; When to detect slack tank be qualified, qualified slack tank directly entered next process and dries; When to detect slack tank be defective, described laser signal amplifier was exported defective signal and is given PLC, and described PLC output stop signal gives main frame to stop feeding, and executing agency delivers to the defective products collecting region with defective slack tank simultaneously.
4. powder coating thickness online detection and control method according to claim 1 is characterized in that: described laser sensor is for adjusting the adjustable miniature laser sensor of laser beam size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110040393.5A CN102114458B (en) | 2011-02-18 | 2011-02-18 | On-line detection control system and control method thereof for powder coating thickness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110040393.5A CN102114458B (en) | 2011-02-18 | 2011-02-18 | On-line detection control system and control method thereof for powder coating thickness |
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| Publication Number | Publication Date |
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| CN102114458A true CN102114458A (en) | 2011-07-06 |
| CN102114458B CN102114458B (en) | 2014-10-15 |
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| CN201110040393.5A Active CN102114458B (en) | 2011-02-18 | 2011-02-18 | On-line detection control system and control method thereof for powder coating thickness |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104615155A (en) * | 2015-02-13 | 2015-05-13 | 北京京诚之星科技开发有限公司 | Automatic control system for thickness of powder coating |
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| CN1088489A (en) * | 1992-12-24 | 1994-06-29 | 埃尔帕特朗尼股份公司 | The coating process of can seam and device thereof |
| CN1133777A (en) * | 1994-08-04 | 1996-10-23 | 克鲁伯赫舒特克纳公开股份有限公司 | Pipe fitting coating equipment for welded longitudinal seam pipe fitting outer coating |
| CN1207493A (en) * | 1998-09-04 | 1999-02-10 | 清华大学 | Method and apparatus for non-contact measuring thickness of non-metal coating on surface of metal matrix |
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| EP2031347A1 (en) * | 2007-08-31 | 2009-03-04 | United Technologies Corporation | Method and apparatus for measuring coating thickness with a laser |
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- 2011-02-18 CN CN201110040393.5A patent/CN102114458B/en active Active
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| CN1088489A (en) * | 1992-12-24 | 1994-06-29 | 埃尔帕特朗尼股份公司 | The coating process of can seam and device thereof |
| CN1133777A (en) * | 1994-08-04 | 1996-10-23 | 克鲁伯赫舒特克纳公开股份有限公司 | Pipe fitting coating equipment for welded longitudinal seam pipe fitting outer coating |
| CN1207493A (en) * | 1998-09-04 | 1999-02-10 | 清华大学 | Method and apparatus for non-contact measuring thickness of non-metal coating on surface of metal matrix |
| JP2000136922A (en) * | 1998-11-04 | 2000-05-16 | Kubota Corp | Inspection apparatus for coating thickness |
| KR20060001525A (en) * | 2004-06-30 | 2006-01-06 | 현대자동차주식회사 | Inspecting system of sealant application condition for glass of vehicle |
| EP2031347A1 (en) * | 2007-08-31 | 2009-03-04 | United Technologies Corporation | Method and apparatus for measuring coating thickness with a laser |
| WO2010135770A1 (en) * | 2009-05-26 | 2010-12-02 | Udo Wolfgang Bucher | Dry coating thickness measurement and instrument |
| CN101575017A (en) * | 2009-06-11 | 2009-11-11 | 范自鲁 | Novel automatic ice cream stick separating and bundling integral machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104615155A (en) * | 2015-02-13 | 2015-05-13 | 北京京诚之星科技开发有限公司 | Automatic control system for thickness of powder coating |
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| CN102114458B (en) | 2014-10-15 |
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