CN202075585U - Programmable logic controller (PLC) control cabinet of double-layer coiled welding pipe production line - Google Patents
Programmable logic controller (PLC) control cabinet of double-layer coiled welding pipe production line Download PDFInfo
- Publication number
- CN202075585U CN202075585U CN2011200299778U CN201120029977U CN202075585U CN 202075585 U CN202075585 U CN 202075585U CN 2011200299778 U CN2011200299778 U CN 2011200299778U CN 201120029977 U CN201120029977 U CN 201120029977U CN 202075585 U CN202075585 U CN 202075585U
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- production line
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- frequency converter
- welded tube
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Abstract
The utility model relates to a programmable logic controller (PLC) control cabinet of a double-layer coiled welding pipe production line of a control device of a continuous double-layer coiled welding pipe production line. A PLC inside the control cabinet is connected with an encoder, a touch screen, a frequency converter, an infrared radiation thermometer, a silicon controlled power regulator, a flaw detecting device, a pressure sensor, a photoelectric switch and production equipment respectively. The PLC is communicated with the touch screen and the frequency converter respectively through Ethernet and equipment networks to form a three-stage control net. The PLC control cabinet adopts closed loop control, improves control precision of parameters such as temperature and speed, and integrates real-time monitoring, alarming and controlling, thereby reducing effects of manual factors in production and improving safety and stability of operation of the production line.
Description
Technical field
The utility model relates to the control device of continous way double coiled welded tube production line.
Background technology
Be used for automobile, the double coiled welded tube of refrigeration industry is that the two-sided steel band that is coated with solder such as copper is curled 720 ° and become double drum along bandwidth direction, the special tubing that the socket seam is formed by heating arrangement then, the production line of this tubing is generally by uncoiler, make-up machine, soldering oven, eddy current flaw detec, marking device, traction engine, coiler constitutes, its production run not only needs the close look at the swing of each production equipment, and to travelling speed, brazing temperature, pulling force, control of process parameters such as air pressure require very strict, traditional tubulation production line control system is to adopt relay, the y series motor of pipeline, trigger circuit, reometer, voltage table, compositions such as the relative carrying out flaw detection instrument of current transformer with tubing, its complicated operation, human factor is many, precision is not high, reliability is low, poor stability.
Chinese patent publication number CN201532255U, name is called duplex plating copper brazing steel pipe welding temperature Detection ﹠ Controling device, a kind of closed-loop control system that is made of programming Control device, transformer, operating platform, soldering oven and infrared temperature-test sensor is disclosed, to reach the purpose that detects and control brazing temperature.
Chinese patent publication number CN201532273U; name is called duplex plating copper brazing tube core rod stretching force detecting apparatus; disclose a kind of tension measuring device that constitutes by programming Control device, pressure transducer, frequency converter, variable-frequency motor etc., shut down the judgment basis of handling when being used as adjustment of plug position and mandrel fracture with this.
Chinese patent publication number CN201532380U, name is called a kind of eddy-current crack detector that is used for double-deck copper brazing steel pipe, disclose a kind of quality detection device that constitutes by control platform, frame, vertical correction device, level correction device, detecting device and tractor, reduced the inspection rate of establishing of existing pick-up unit.
The device that above technology is just controlled a certain equipment in the double coiled welded tube production line, function singleness.
Summary of the invention
The purpose of this utility model is to provide a kind of double coiled welded tube production line PLC switch board, it is a kind of that various control function in the double coiled welded tube production line are integrated, the real-time Detection ﹠ Controling of the logical order control of each equipment and travelling speed, brazing temperature, plug pressure and other parameters in realizing producing, and have functions such as demonstration, warning, automatic stopping.
The technical solution of the utility model is:
The utility model comprises switch board, PLC controller, touch-screen, infrared thermometer, pressure transducer, scrambler, controllable silicon electric power adjuster, frequency converter, carrying out flaw detection instrument, and the PLC controller in the switch board is connected with scrambler, touch-screen, frequency converter, infrared thermometer, controllable silicon electric power adjuster, carrying out flaw detection instrument, pressure transducer, optoelectronic switch, production equipment respectively.
Described PLC controller is connected by switching value I/O mouth, each production equipment of analog quantity I/O mouth and production line, monitoring device, actuating unit, be used for the control of the start and stop of production line and sequence of movement, and communicate by letter with touch-screen, frequency converter respectively by Ethernet and device network respectively and constitute three grades of Control Network.
The speed governing of the main motor of described frequency converter and production line, make-up machine motor, traction engine motor, constitute closed-loop control system with scrambler, controlled motor, the motor velocity signal that frequency converter received code device is measured, and communicate by letter with controller PLC by the device network assembly.
Described touch-screen is used to show the real-time status of field apparatus and set control parameter value, and can only sets parameter.
Described scrambler is used for testing the speed of motor, and rate signal is fed back to frequency converter.
Described infrared thermometer is installed on soldering oven top, is used to measure brazing temperature, and the conversion of signals that records becomes the current signal analog quantity input to feed back to the PLC controller.
Described controllable silicon electric power adjuster is controlled brazing temperature by the break-make of adjusting heater circuit, and it and infrared thermometer, PLC controller constitute closed-loop control, and its control signal is by PLC controller output current signal.
Described pressure transducer is installed on the make-up machine top, be used to detect the pulling force of plug bending, the pulling force conversion of signals that records is shown by digital instrument after becoming digital quantity on the one hand, adjust the foundation of plug rubbish as operating personnel, import the switching value input port of PLC controller on the other hand into, carry out mandrel fracture and judge.
Described carrying out flaw detection instrument is on draw-off equipment, and the welding quality that the defectoscope detector is used for double coiled welded tube detects, and the coordinate position at recording defect place feeds back to the PLC controller, starts marking device at position mark accurately to drive.
Described optoelectronic switch is installed between traction drive and second traction drive, be used to judge the tubing travelling speed, and to PLC controller input switch amount signal, if it is too high or too low, the PLC controller can provide automatically adjusts machine acceleration of signal driving second traction or deceleration, makes steel pipe reach normal condition.
The beneficial effects of the utility model are:
1, the utility model adopts closed-loop control, has improved temperature, the isoparametric control accuracy of speed;
2, one is monitored, reports to the police, is controlled in to the utility model collection in real time, reduced artificial factor in the production;
3, centralized control of the utility model and distributed control combine, and realize the reasonably combined of controlling resource, are easy to realize the function expansion.
Description of drawings
Fig. 1 is the practical synoptic diagram of the utility model structure;
Fig. 2 is the utility model block diagram;
Fig. 3 is the utility model speed control circuit figure;
Fig. 4 is the utility model temperature-control circuit figure;
Fig. 5 is the utility model temperature control flow figure;
Embodiment
The utility model is described in further detail referring to accompanying drawing embodiment.
Among Fig. 1; PLC controller, frequency converter, controllable silicon electric power adjuster are arranged in the switch board 1; Outside the switch board 1 infrared thermometer, touch-screen, soldering transformer, carrying out flaw detection instrument are arranged, the PLC controller is connected with frequency converter, electric power adjustment, infrared thermometer, touch-screen, soldering transformer, carrying out flaw detection instrument respectively.
Among Fig. 2: central authorities control PLC be the PLC controller respectively with scrambler, touch-screen, frequency converter, infrared thermometer, the controllable silicon adjuster, the carrying out flaw detection instrument, pressure transducer, optoelectronic switch, production equipment connects, and and corresponding electrical equipment constitute control system, the PLC controller is added and is picked up from production equipment, switch, the switching signal of monitoring device and simulating signal, output is used for the switching signal and the simulating signal of production equipment control and actuator adjustment, the PLC controller is communicated by letter with frequency converter by bus module access device network-bus, and utilizes Ethernet to realize signal exchange by switch and operator's console touch-screen.
Among Fig. 3: motor speed is mainly by Frequency Converter Control, converter power supply connection terminal piece connects the 380V industrial-frequency alternating current, the connecting terminal of motor piece connects controlled motor, for motor provides frequency, voltage all controlled alternating current, the 24V direct-current working volts are provided by system, make comparisons with the speed of setting and to send steering order by its inner control loop after the computing, communication interface connects the device network bus, receives the speed setting parameter that the PLC controller is sent here.
Among Fig. 4: the soldering oven temperature control is realized by the closed-loop control system that PLC controller, controllable silicon electric power adjuster, well heater and infrared thermometer constitute, the soldering oven internal heater is for the 220V alternating current, be connected to controllable silicon in the heater circuit, controllable silicon electric power adjuster supplies the 24V direct current by system, and receive the 4-20ma current controling signal that the PLC controller is sent here, infrared thermometer is loaded on soldering oven top, and the temperature signal that records send PLC controller through the current signal that transmitter converts 4-20ma to.
Among Fig. 5: behind the system boot, PLC controller at first initialization carries out self check, and judge whether operate as normal of each module of system, before opening, well heater needs on the operator's console touch-screen, temperature value to be set, after starting well heater, the PLC controller receives the temperature signal that picks up from infrared thermometer, convert the discernible digital quantity of PLC controller to through the analog quantity load module, the PLC controller compares temperature value and system's set-point, and through sending control signal to the controllable silicon adjuster after the PLC controller calculation process, the conducting of control heater circuit makes soldering oven begin to heat or stop heating.
Claims (6)
1. relate to the double coiled welded tube production line PLC switch board of the control device of continous way double coiled welded tube production line, it is characterized in that: comprise PLC controller, touch-screen, infrared thermometer, pressure transducer, scrambler, controllable silicon electric power adjuster, frequency converter, carrying out flaw detection instrument, the PLC controller is connected with scrambler, touch-screen, frequency converter, infrared thermometer, controllable silicon electric power adjuster, carrying out flaw detection instrument, pressure transducer, optoelectronic switch, production equipment respectively.
2. double coiled welded tube production line PLC switch board according to claim 1, it is characterized in that: the PLC controller is connected by switching value I/O mouth, each production equipment of analog quantity I/O mouth and production line, monitoring device, actuating unit, and respectively by Ethernet and the device network three grades of Control Network of formation of communicating by letter with touch-screen, frequency converter respectively.
3. double coiled welded tube production line PLC switch board according to claim 1, it is characterized in that: the speed governing of the main motor of frequency converter and production line, make-up machine motor, traction engine motor, scrambler, controlled motor constitute closed-loop control system, and communicate by letter with controller PLC by the device network assembly.
4. double coiled welded tube production line PLC switch board according to claim 1, it is characterized in that: described infrared thermometer is installed on soldering oven top, and its infrared thermometer, controllable silicon electric power adjuster, PLC controller constitute closed-loop control.
5. double coiled welded tube production line PLC switch board according to claim 1, it is characterized in that: pressure transducer is installed on the make-up machine top, and the carrying out flaw detection instrument is on draw-off equipment.
6. double coiled welded tube production line PLC switch board according to claim 1 is characterized in that: described optoelectronic switch is installed between traction drive and second traction drive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200299778U CN202075585U (en) | 2011-01-28 | 2011-01-28 | Programmable logic controller (PLC) control cabinet of double-layer coiled welding pipe production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200299778U CN202075585U (en) | 2011-01-28 | 2011-01-28 | Programmable logic controller (PLC) control cabinet of double-layer coiled welding pipe production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202075585U true CN202075585U (en) | 2011-12-14 |
Family
ID=45113680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200299778U Expired - Lifetime CN202075585U (en) | 2011-01-28 | 2011-01-28 | Programmable logic controller (PLC) control cabinet of double-layer coiled welding pipe production line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202075585U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105074593A (en) * | 2013-03-29 | 2015-11-18 | 三菱电机株式会社 | Plc system |
-
2011
- 2011-01-28 CN CN2011200299778U patent/CN202075585U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105074593A (en) * | 2013-03-29 | 2015-11-18 | 三菱电机株式会社 | Plc system |
| CN105074593B (en) * | 2013-03-29 | 2017-08-25 | 三菱电机株式会社 | Plc system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111214 Effective date of abandoning: 20130501 |
|
| RGAV | Abandon patent right to avoid regrant |