CN102591224B - Control circuit of steel pipe paint sprayer - Google Patents
Control circuit of steel pipe paint sprayer Download PDFInfo
- Publication number
- CN102591224B CN102591224B CN201210034987.XA CN201210034987A CN102591224B CN 102591224 B CN102591224 B CN 102591224B CN 201210034987 A CN201210034987 A CN 201210034987A CN 102591224 B CN102591224 B CN 102591224B
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- time relay
- relay
- paint
- time
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Abstract
The invention provides a control circuit of a steel pipe paint sprayer. The control circuit comprises a proximity switch and three time relays, wherein the first time relay is an air and paint power-on time delay relay, the second time relay is a paint power-off time delay relay, and the third relay is an air power-off time delay relay; the input ends of the second time relay and the third time relay are connected in parallel and then connected with the normally-open contact of the first time relay, and the combination of the input ends of the second time relay and the third time relay and the normally-open contact of the first time relay is connected in parallel with the input end of the first time relay and then connected with the proximity switch; and the normally-open contact of the first time relay and the normally-closed contact of the second time relay are connected in parallel and then connected with a paint spraying electromagnetic valve, and the normally-open contact of the first time relay and the normally-closed contact of the third time relay are connected in parallel and then connected with a blowing electromagnetic valve. The invention has the advantages that because the control circuit is controlled by one switch, the control circuit is relatively simple; and because the switch is far away from the paint sprayer, the switch is difficult to crash and corrode.
Description
Technical field
The present invention relates to a kind of control circuit, especially a kind of control circuit of steel pipe paint sprayer.
Background technology
Paint spraying machine principle is that anticorrosive paint is directly sprayed to the outside surface of steel pipe, then utilizes pressurized air that paint is evenly dispelled, and so not only can effectively control the thickness of painting layer, also can make evenly light of coating, meets client's requirement.Former paint spraying machine device is to be controlled and sprayed paint and air blowing by two approach switchs, and one is contained in paint spraying machine import, and an outlet that is contained in paint spraying machine, because size and the paint of pipe are many, causes switch often to damage, and circuit is painted corrosion, very difficult processing.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of control circuit of steel pipe paint sprayer is provided, by a switch, controlled the automatic control of spraying paint and blowing, and switch is away from paint spraying machine simultaneously, not fragile.
According to technical scheme provided by the invention, described control circuit of steel pipe paint sprayer comprises: approach switch and very first time relay, second time relay, the 3rd time relay, described very first time relay is air, paint energization delay relay, described second time relay is paint power-off delay relay, and described the 3rd time relay is air power-off delay relay; The normally opened contact that is connected again very first time relay after the input end parallel connection of second time relay and the 3rd time relay, the input end of described second time relay, the 3rd time relay is connected approach switch with the combination of very first time relay normally open contact afterwards again with very first time relay input end parallel connection; Described very first time relay normally open contact is connected with the second time relay normally closed contact parallel connection solenoid valve that sprays paint afterwards, and described very first time relay normally open contact is connected air blowing solenoid valve afterwards with the 3rd time relay normally closed contact parallel connection.
Described approach switch is arranged on the feeding roller table before paint spraying machine, apart from paint spraying machine, has certain distance.
Advantage of the present invention is: 1. a switch is controlled, and control loop is fairly simple; 2. switch, away from paint spraying machine, is difficult for being damaged and corroding; 3. operation circuit is safer; 4. reduce the loss of standby redundancy.
Accompanying drawing explanation
Fig. 1 electrical schematic diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, the present invention includes an approach switch SQ1 and very first time relay K T1, the second time relay KT2, the 3rd time relay KT3, described very first time relay K T1 is air, paint energization delay relay, described the second time relay KT2 is paint power-off delay relay, and described the 3rd time relay KT3 is air power-off delay relay; The normally opened contact that is connected again very first time relay K T1 after the input end parallel connection of the second time relay KT2 and the 3rd time relay KT3, the input end of described the second time relay KT2, the 3rd time relay KT3 is connected approach switch SQ1 with the combination of very first time relay K T1 normally opened contact afterwards again with the parallel connection of very first time relay K T1 input end; Described very first time relay K T1 normally opened contact is connected with the second time relay KT2 normally closed contact parallel connection solenoid valve YV1 that sprays paint afterwards, and described very first time relay K T1 normally opened contact is connected air blowing solenoid valve YV2 afterwards with the 3rd time relay KT3 normally closed contact parallel connection.
The principle of work of circuit is: approach switch SQ1 is arranged on (apart from 1 meter of of paint spraying machine) on the feeding roller table before paint spraying machine, when steel pipe arrives approach switch SQ1, the solenoid valve YV1 that sprays paint of paint spraying machine controlled by the time relay that utilization is installed in Electric Appliance Cabinet, the startup of air blowing solenoid valve YV2, stop, according to the requirement of pipe, only need to regulate the time relay just can control the effect of spraying paint.
By production testing, approach switch situation about being broken by steel pipe before and after existing equipment often occurs, due to switch from paint spraying machine close to, cause switch serious corrosion, easily produce error signal, the impact effect of spraying paint.After having transformed according to the solution of the present invention, controlled the automatic control of spraying paint and blowing by an approach switch, maintenance of equipment rate obviously reduces simultaneously, and trouble spot minimizing, easily finds out; Switch is not damaged, and has saved equipment cost, and the effect of spraying paint is fairly good, and work efficiency obviously improves.
Claims (1)
1. control circuit of steel pipe paint sprayer, it is characterized in that: comprise an approach switch (SQ1) and very first time relay (KT1), second time relay (KT2), the 3rd time relay (KT3), described very first time relay (KT1) is air, paint energization delay relay, described second time relay (KT2) is paint power-off delay relay, and described the 3rd time relay (KT3) is air power-off delay relay; The normally opened contact that is connected again very first time relay (KT1) after the input end parallel connection of second time relay (KT2) and the 3rd time relay (KT3), the input end of described second time relay (KT2), the 3rd time relay (KT3) is connected approach switch (SQ1) with the combination of very first time relay (KT1) normally opened contact afterwards again with the parallel connection of very first time relay (KT1) input end; Described very first time relay (KT1) normally opened contact is connected the solenoid valve that sprays paint (YV1) afterwards with the parallel connection of second time relay (KT2) normally closed contact, and described very first time relay (KT1) normally opened contact is connected air blowing solenoid valve (YV2) afterwards with the 3rd time relay (KT3) normally closed contact parallel connection;
Described approach switch (SQ1) is arranged on the feeding roller table before paint spraying machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210034987.XA CN102591224B (en) | 2012-02-16 | 2012-02-16 | Control circuit of steel pipe paint sprayer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210034987.XA CN102591224B (en) | 2012-02-16 | 2012-02-16 | Control circuit of steel pipe paint sprayer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102591224A CN102591224A (en) | 2012-07-18 |
| CN102591224B true CN102591224B (en) | 2014-04-02 |
Family
ID=46480057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210034987.XA Expired - Fee Related CN102591224B (en) | 2012-02-16 | 2012-02-16 | Control circuit of steel pipe paint sprayer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102591224B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113820947A (en) * | 2020-06-19 | 2021-12-21 | 北京国电思达科技有限公司 | Control logic of cooling fan of converter module of wind turbine generator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200957401Y (en) * | 2006-10-17 | 2007-10-10 | 武汉钢实金诚包装科技有限责任公司 | Steel-band protecting-ring paint sprayer |
| CN201134019Y (en) * | 2007-12-29 | 2008-10-15 | 江苏国力锻压机床有限公司 | Single-time continuous rush-preventing actuating circuit |
| CN201342394Y (en) * | 2008-12-31 | 2009-11-11 | 王效勤 | Fully-automatic special oil casing pipe paint-spraying machine |
| CN201579179U (en) * | 2009-04-03 | 2010-09-15 | 衡阳华菱连轧管有限公司 | Air shower type steel pipe painting machine |
-
2012
- 2012-02-16 CN CN201210034987.XA patent/CN102591224B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200957401Y (en) * | 2006-10-17 | 2007-10-10 | 武汉钢实金诚包装科技有限责任公司 | Steel-band protecting-ring paint sprayer |
| CN201134019Y (en) * | 2007-12-29 | 2008-10-15 | 江苏国力锻压机床有限公司 | Single-time continuous rush-preventing actuating circuit |
| CN201342394Y (en) * | 2008-12-31 | 2009-11-11 | 王效勤 | Fully-automatic special oil casing pipe paint-spraying machine |
| CN201579179U (en) * | 2009-04-03 | 2010-09-15 | 衡阳华菱连轧管有限公司 | Air shower type steel pipe painting machine |
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| Publication number | Publication date |
|---|---|
| CN102591224A (en) | 2012-07-18 |
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