CN102921744B - Automatic core rod supporting roller adjusting system for hot-rolled seamless steel tube production line - Google Patents
Automatic core rod supporting roller adjusting system for hot-rolled seamless steel tube production line Download PDFInfo
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- CN102921744B CN102921744B CN201210498714.0A CN201210498714A CN102921744B CN 102921744 B CN102921744 B CN 102921744B CN 201210498714 A CN201210498714 A CN 201210498714A CN 102921744 B CN102921744 B CN 102921744B
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- reversing valve
- proportional reversing
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Abstract
The invention relates to an automatic core rod supporting roller adjusting system for a hot-rolled seamless steel tube production line. A displacement sensor and a side face fixed proportional reversing valve are fixed at the tail of a hydraulic cylinder of the original mechanical core rod supporting roller adjusting system; a control part comprises a central processing unit, a power processing circuit, a programmable logic storage device, a displacement sensor communication circuit and a proportional reversing valve driving control circuit; the displacement sensor, the programmable logic storage device, the central processing unit, the displacement sensor communication circuit and the proportional reversing valve driving control circuit are sequentially connected in a unidirectional mode; the power processing circuit is respectively connected with the programmable logic storage device, the proportional reversing valve driving control circuit and the proportional reversing valve in a unidirectional mode; the central processing unit is connected with the displacement sensor communication circuit in a bidirectional mode; and a direct current power supply is connected with the power processing circuit in a unidirectional mode. The automatic core rod supporting roller adjusting system has the beneficial effect of simple structure, convenience in installation and maintenance, convenient and rapid adjustment and long service life, and the parameters are required to be set in an operating room only.
Description
Technical field
The present invention relates to a kind of seamless steel pipe hot-rolling production line plug backing roll adjustment System, particularly plug backing roll automatic adjustment system for a kind of hot rolled seamless steel tube production line.
Background technology
Along with the fierceness day by day of market competition, the rhythm of producing is also accelerated gradually, seamless steel pipe hot-rolling production line is due to the continuity of producing, on-the-spot iron scale is piled up more, the shock repeatedly of single twin-tub is more serious to the wearing and tearing of spare part, the maintenance of the equipment of giving has caused a lot of inconvenience, in addition, due to the shock inequality of single twin-tub, cause position to occur deviation, each backing roll position disunity when unified adjustment backing roll mandril position, adjust and need mobile hydraulic cylinder base separately, program is loaded down with trivial details, base is easily loosening, the adjustment time is longer, cause very large obstruction to subsequent production.
Summary of the invention
In view of needs of production, the invention provides a kind of hot rolled seamless steel tube production line plug backing roll automatic adjustment system, concrete technical scheme is, plug backing roll automatic adjustment system for a kind of hot rolled seamless steel tube production line, it is characterized in that: comprise displacement transducer, proportional reversing valve and control section, at the hydraulic cylinder afterbody fixed displacement sensor of former mechanical plug backing roll adjustment System, side fixed proportion reversal valve, control section comprises CPU, power supply processing circuit, programmable logic memory, displacement transducer communicating circuit and proportional reversing valve Drive and Control Circuit, circuit is connected to displacement transducer, programmable logic memory, CPU, displacement transducer communicating circuit and proportional reversing valve Drive and Control Circuit, proportional reversing valve is unidirectional connection successively, power supply processing circuit respectively with programmable logic memory, the unidirectional connection of proportional reversing valve Drive and Control Circuit and proportional reversing valve, CPU is connected with displacement transducer communicating circuit is two-way, dc source is connected with power supply processing circuit is unidirectional.
The invention has the beneficial effects as follows simple in structure, be convenient to installation and maintenance, easy to adjust, quick, long service life, only need be at OPS's parameters.
Brief description of the drawings
Fig. 1 is schematic block circuit diagram of the present invention.
Fig. 2 is power supply processing circuit schematic diagram of the present invention.
Fig. 3 is programmable logic memory circuit theory diagrams of the present invention.
Fig. 4 is proportional reversing valve Drive and Control Circuit schematic diagram of the present invention.
Fig. 5 is displacement transducer communicating circuit schematic diagram of the present invention.
Fig. 6 is structure scheme of installation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the design is described further, CPU adopts ATMEGA8 chip, power supply processing circuit adopts LM2575 chip, programmable logic memory adopts Atmel24c08 chip, communicating circuit adopts MAX3232 chip, and proportional reversing valve Drive and Control Circuit adopts AAT4285 chip.
As shown in Figure 1, the unidirectional connection successively of displacement transducer 2, programmable logic memory, CPU, displacement transducer communicating circuit and proportional reversing valve Drive and Control Circuit, proportional reversing valve 6, power supply processing circuit is respectively with programmable logic memory, proportional reversing valve Drive and Control Circuit and proportional reversing valve 6 is unidirectional is connected, CPU is connected with displacement transducer communicating circuit is two-way, and dc source is connected with power supply processing circuit is unidirectional.
As shown in Figure 2,1 pin of power supply processing circuit LM2575 chip connects 24V voltage after being connected with the positive pole of capacitor C 9, after one end that 4 pin of LM2575 chip connect positive pole, the inductance L 1 of electrochemical capacitor C8 is connected with the positive pole of light emitting diode D4, meet VCC, 2 pin of LM2575 chip connect the other end of inductance L 1 and the negative pole of diode D3; The negative pole of diode D4 is connected with one end of R5, and the other end of R5 is connected rear ground connection with the negative pole of capacitor C 8 other ends, C9, the positive pole of diode D3,3 pin of LM2575 with 5 pin.
As shown in Figure 3, A0 pin, A1 pin and the A2 pin of programmable logic memory Atmel24c02 chip connect respectively connector J1, the GND pin of Atmel24c02 chip connects GND end after being connected with WP pin, one end of the SCL pin contact resistance R1 of Atmel24c08 chip, one end of the SDA pin contact resistance R2 of Atmel24c08 chip, the other end of resistance R 1 connects VCC end after being connected with the other end of resistance R 2.
As shown in Figure 4, after being connected with 2 pin, 1 pin of proportional reversing valve Drive and Control Circuit AAT4285 chip connects 12V voltage, the positive pole of the negative pole of diode D2 and electrochemical capacitor C2, ground connection after the positive pole of diode D2 is connected with the negative pole of electrochemical capacitor C2, 4 pin of AAT4285 chip connect 14 pin of CPU ATMEGA8 chip and one end of resistance R 3 after being connected with one end of resistance R 4, the base stage of another termination triode Q1 of resistance R 3, the colelctor electrode of triode Q1 connects VCC end after being connected with the positive pole of diode D1, ground connection after the emitter stage of triode Q1 is connected with the negative pole of diode D1, 5 pin of the other end of resistance R 4 and AAT4285 chip, 6 pin, 7 pin, one end of 8 pin and capacitor C 1 connects, the other end of capacitor C 1 connects proportional reversing valve after being connected with 3 pin of AAT4285 chip.
As shown in Figure 5, 10 pin of communicating circuit MAX3232 chip connect 32 pin of CPU ATMEGA8 chip, 11 pin of MAX3232 chip connect 31 pin of CPU ATMEGA8 chip, between 1 pin of MAX3232 chip and 3 pin, be connected C5, between 4 pin of MAX3232 chip and 5 pin, be connected C6, between 16 pin of MAX3232 chip and 2 pin, be connected C3, between 6 pin of MAX3232 chip and 15 pin, be connected C4, after being connected C7 between 16 pin of MAX3232 chip and 15 pin, meet VCC, 13 pin of MAX3232 chip are connected respectively connector J23 pin and 2 pin with 14 pin, the 1 pin ground connection of plug-in unit J2.
As shown in Figure 6, former plug backing roll adjustment System comprises hydraulic cylinder 1, roll shaft swing arm external member 3, bearing block 4, swing arm 5, hydraulic cylinder 1 afterbody fixed displacement sensor 2, side fixed proportion reversal valve 6.
Operation principle: the stroke of displacement transducer 2 Real-Time Monitoring hydraulic cylinders 1, programmable logic memory received bit displacement sensor 2 signals also send the microprocessor of CPU to, whether microprocessor judges current detection meets setting value to shift value, when microprocessor judges current detection to shift value do not meet when setting value and carry out Bias Correction, the microprocessor of CPU also can be realized long-distance centralized control by communicating circuit by detection signal, thereby realize the automatic control of hydraulic cylinder 1 stroke, and then adjust the height of backing roll.
Claims (6)
1. a plug backing roll automatic adjustment system for hot rolled seamless steel tube production line, comprise displacement transducer (2), proportional reversing valve (6) and control section, it is characterized in that: at hydraulic cylinder (1) the afterbody fixed displacement sensor (2) of former mechanical plug backing roll adjustment System, side fixed proportion reversal valve (6), control section comprises CPU, power supply processing circuit, programmable logic memory, displacement transducer communicating circuit and proportional reversing valve Drive and Control Circuit, circuit is connected to displacement transducer (2), programmable logic memory, CPU, displacement transducer communicating circuit and proportional reversing valve Drive and Control Circuit, proportional reversing valve (6) unidirectional connection successively, power supply processing circuit respectively with programmable logic memory, the unidirectional connection of proportional reversing valve Drive and Control Circuit and proportional reversing valve (6), CPU is connected with displacement transducer communicating circuit is two-way, dc source is connected with power supply processing circuit is unidirectional.
2. plug backing roll automatic adjustment system for hot rolled seamless steel tube production line as claimed in claim 1, it is characterized in that: described CPU adopts ATMEGA8 chip, described power supply processing circuit adopts LM2575 chip, programmable logic memory adopts Atmel24c02 chip, communicating circuit adopts MAX3232 chip, and proportional reversing valve Drive and Control Circuit adopts AAT4285 chip.
3. plug backing roll automatic adjustment system for hot rolled seamless steel tube production line as claimed in claim 2, it is characterized in that: 1 pin of described power supply processing circuit LM2575 chip connects 24V voltage after being connected with the positive pole of capacitor C 9, after one end that 4 pin of LM2575 chip connect positive pole, the inductance L 1 of electrochemical capacitor C8 is connected with the positive pole of light emitting diode D4, meet VCC, 2 pin of LM2575 chip connect the other end of inductance L 1 and the negative pole of diode D3; The negative pole of diode D4 is connected with one end of R5, and the other end of R5 is connected rear ground connection with the negative pole of capacitor C 8 other ends, C9, the positive pole of diode D3,3 pin of LM2575 with 5 pin.
4. plug backing roll automatic adjustment system for hot rolled seamless steel tube production line as claimed in claim 2, it is characterized in that: the A0 pin of described programmable logic memory Atmel24c02 chip, A1 pin and A2 pin connect respectively 3 of connector J1, 2, 1 port, the GND pin of Atmel24c02 chip connects GND end after being connected with WP pin, one end of the SCL pin contact resistance R2 of Atmel24c02 chip, CPU ATMEGA8 chip 27 pin, one end of the SDA pin contact resistance R1 of Atmel24c02 chip, CPU ATMEGA8 chip 28 pin, the other end of resistance R 1 connects VCC end after being connected with the other end of resistance R 2.
5. plug backing roll automatic adjustment system for hot rolled seamless steel tube production line as claimed in claim 2, it is characterized in that: after 1 pin of described proportional reversing valve Drive and Control Circuit AAT4285 chip is connected with 2 pin, connect 12V voltage, the positive pole of the negative pole of diode D2 and electrochemical capacitor C2, ground connection after the positive pole of diode D2 is connected with the negative pole of electrochemical capacitor C2, 4 pin of AAT4285 chip connect 14 pin of CPU ATMEGA8 chip and one end of resistance R 3 after being connected with one end of resistance R 4, the base stage of another termination triode Q1 of resistance R 3, the colelctor electrode of triode Q1 connects VCC end after being connected with the positive pole of diode D1, ground connection after the emitter stage of triode Q1 is connected with the negative pole of diode D1, 5 pin of the other end of resistance R 4 and AAT4285 chip, 6 pin, 7 pin, one end of 8 pin and capacitor C 1 connects, the other end of capacitor C 1 connects proportional reversing valve after being connected with 3 pin of AAT4285 chip.
6. plug backing roll automatic adjustment system for hot rolled seamless steel tube production line as claimed in claim 2, it is characterized in that: 10 pin of described communicating circuit MAX3232 chip connect 32 pin of CPU ATMEGA8 chip, 11 pin of MAX3232 chip connect 31 pin of CPU ATMEGA8 chip, between 1 pin of MAX3232 chip and 3 pin, be connected C5, between 4 pin of MAX3232 chip and 5 pin, be connected C6, between 16 pin of MAX3232 chip and 2 pin, be connected C3, between 6 pin of MAX3232 chip and 15 pin, be connected C4, between 16 pin of MAX3232 chip and 15 pin, be connected 16 pin of MAX3232 chip after C7 and meet VCC, 15 pin ground connection of MAX3232 chip, 13 pin of MAX3232 chip and 14 pin are connected respectively 3 pin and 2 pin of connector J2, the 1 pin ground connection of connector J2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210498714.0A CN102921744B (en) | 2012-11-30 | 2012-11-30 | Automatic core rod supporting roller adjusting system for hot-rolled seamless steel tube production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210498714.0A CN102921744B (en) | 2012-11-30 | 2012-11-30 | Automatic core rod supporting roller adjusting system for hot-rolled seamless steel tube production line |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102921744A CN102921744A (en) | 2013-02-13 |
| CN102921744B true CN102921744B (en) | 2014-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210498714.0A Expired - Fee Related CN102921744B (en) | 2012-11-30 | 2012-11-30 | Automatic core rod supporting roller adjusting system for hot-rolled seamless steel tube production line |
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| CN (1) | CN102921744B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103691743B (en) * | 2013-12-12 | 2015-07-22 | 天津市电视技术研究所 | Automatic roller adjusting system before tube knockout for hot rolled seamless steel tube production line |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2569104A (en) * | 1946-03-09 | 1951-09-25 | Aetna Standard Eng Co | Mandrel bar support |
| EP0796674A2 (en) * | 1996-03-18 | 1997-09-24 | MANNESMANN Aktiengesellschaft | Method of producing tubes from extruded, continuously cast or cross-rolled loops in a cold pilger mill |
| CN201070639Y (en) * | 2007-06-21 | 2008-06-11 | 纪朝霞 | Automatic control system of weldless steel tube punching machine |
| CN101254510A (en) * | 2008-04-12 | 2008-09-03 | 太原市通泽成套设备有限公司 | Centering device of roller milling steel tube |
| CN203044522U (en) * | 2012-11-30 | 2013-07-10 | 天津市电视技术研究所 | Core-rod supporting roll automatic adjusting system for hot-rolled seamless steel pipe production line |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6418508A (en) * | 1987-07-14 | 1989-01-23 | Sumitomo Metal Ind | Method for elongation rolling tube |
| CN201338009Y (en) * | 2009-02-18 | 2009-11-04 | 鞍山安信制管设备设计研究有限公司 | Full hydraulic core rod controller |
-
2012
- 2012-11-30 CN CN201210498714.0A patent/CN102921744B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2569104A (en) * | 1946-03-09 | 1951-09-25 | Aetna Standard Eng Co | Mandrel bar support |
| EP0796674A2 (en) * | 1996-03-18 | 1997-09-24 | MANNESMANN Aktiengesellschaft | Method of producing tubes from extruded, continuously cast or cross-rolled loops in a cold pilger mill |
| CN201070639Y (en) * | 2007-06-21 | 2008-06-11 | 纪朝霞 | Automatic control system of weldless steel tube punching machine |
| CN101254510A (en) * | 2008-04-12 | 2008-09-03 | 太原市通泽成套设备有限公司 | Centering device of roller milling steel tube |
| CN203044522U (en) * | 2012-11-30 | 2013-07-10 | 天津市电视技术研究所 | Core-rod supporting roll automatic adjusting system for hot-rolled seamless steel pipe production line |
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| CN102921744A (en) | 2013-02-13 |
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