CN2530755Y - Water cooling metal centrifugal tube casting machine closed loop control device - Google Patents
Water cooling metal centrifugal tube casting machine closed loop control device Download PDFInfo
- Publication number
- CN2530755Y CN2530755Y CN 02211145 CN02211145U CN2530755Y CN 2530755 Y CN2530755 Y CN 2530755Y CN 02211145 CN02211145 CN 02211145 CN 02211145 U CN02211145 U CN 02211145U CN 2530755 Y CN2530755 Y CN 2530755Y
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- centrifuge
- walking
- plc
- flow control
- servo valve
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Abstract
The utility model relates to a water cooling metal type off-center pipe casting machine closed ring controlling device which comprises a measuring device, a hydraulic pressure ratio serving controlling device and a PLC imitation output device. The measuring circuit comprises a rotating coder PLC function module and a rotating coder; the rotating coder forms the off-center walk controlling device through the rotating chain wheel and the fixed chain; the rotating coder forms the section bag controlling device through the rotating chain wheel and the section bag rotating axis; the output controlling circuit comprises a PLC imitation volume output module and a ratio flow controlling valve; and the closed ring controlling device comprises a bag ratio valve lump of the hydraulic controlling circuit and the off-center machine to realize the turning over of the section bag. Therefore the utility model can realize the controlling of the walking speed automatically, has a high controlling precision, a reliable capability, an even thickness of the casting pipe wall, can replace the handle manual operation and can realize the automatic casting forming.
Description
Technical field: the utility model is the matching used electrohydraulic digital of a water-cooled metal mould centrifugal tube casting machine chemical control system device.
Background technology: at present, walking of the centrifuge of water-cooled metal mould centrifugal tube casting machine and the upset of fan-shaped bag are by the control of proportion directional valve, and the operative employee utilizes the handle drives potentiometer, the speed of travel of artificial control cast tube machine.The upset total time of fan-shaped bag is also realized by operative employee's rotational potentiometer, whether constant angular velocity is controlled by the installation and the accuracy of manufacture of cam in the upset of fan-shaped bag, in case equipment attrition or hydraulic oil fluctuation all have a strong impact on the upset precision of fan-shaped bag, therefore, the wall thickness of cast tube and uniformity are difficult to guarantee.
Summary of the invention: the purpose of this utility model is the deficiency at above-mentioned technology, provide a kind of realize upset of fan-shaped bag and the high PLC closed-loop control of centrifuge walking precision to people, promptly the equal angular speed upset of fan-shaped bag and centrifuge walk curve all by man-machine interface TP in advance digital quantity input realize.Avoid artificial, equipment attrition and hydraulic oil temperature to change the influence of foeign element fully, improved control accuracy simultaneously.For achieving the above object, the utility model adopts following technical proposals: water-cooled metal mould centrifugal tube casting machine PLC closed-loop control device mainly comprises measurement, hydraulic proportional SERVO CONTROL, three parts of PLC simulation output.Be made up of PLC functional module and rotary encoder and measure the loop, walking encoder is by rotating sprocket and the fixing centrifuge traveling control device formed of chain, the fan-shaped packet control apparatus that the casting machine encoder is formed by rotating sprocket and fan-shaped bag rotating shaft.The output control circuit that PLC analog output module and ratio flow control valve are formed wraps proportioning valve piece and centrifuge walking by turning over of hydraulic control circuit control, and the proportioning valve piece is realized the closed-loop control of fan-shaped bag upset and centrifuge walking.Its concrete structure is: (a) measure portion: casting machine encoder (1) is connected with PLC functional template (14) by lead with centrifuge walking encoder (2), and the latter links to each other with the CPU of PLC by bus, has formed complete measurement loop.The fan-shaped bag upset main shaft of casting machine (7) is installed on the same axle with fan-shaped bag drive sprocket (8), chain (9) is with sprocket wheel (8) and encoder driven sprocket (10) engagement and drive casting machine encoder (1) rotation, has been realized the detection of the reversal rate of fan-shaped bag by encoder (1).Centrifuge directly is connected with drag chain dolly (11), the centrifuge walking, drag chain dolly (11) moves, fixedly chain (13) is contained on the fixed support, centrifuge initiatively encoder sprocket wheel (12) is contained on the drag chain dolly (11) with centrifuge walking encoder (2) is coaxial, under the effect of fixing chain (13), initiatively encoder sprocket wheel (12) rotation of centrifuge.Because drive sprocket is coaxial with encoder, so encoder (2) and sprocket wheel (12) rotation synchronously.Realized the measurement of the centrifuge speed of travel by encoder (2).(b) hydraulic proportional SERVO CONTROL: the ratio Flow Control servo valve (3) of the fan-shaped bag overturning oil cylinder of control casting machine movement velocity is connected with cast ratio Flow Control servo valve amplifier (15), the latter is subjected to the control of PLC analog output module (18), to reach the purpose of control pouring molten iron amount.The ratio Flow Control servo valve (4) of control centrifuge walking oil cylinder movement velocity is connected with centrifuge walking cast proportional servo valve amplifier (16), centrifuge walking ratio Flow Control servo valve (4) and centrifuge walking hydraulicdirectional control valve (5) and centrifuge walking are returned ratio flow control valve (6) and are subjected to the control of PLC analog output module (18), thereby reach the variation of control centrifuge position.(c) PLC analog quantity output: two the binding post QVO and the Mana of PLC analog output module (18) are connected with cast ratio Flow Control servo valve amplifier (15), and amplifier (15) is connected with casting machine ratio Flow Control servo valve (3).Two binding post QV1 of PLC analog output module (18) and Mana are connected with centrifuge walking cast proportional servo valve amplifier (16), and amplifier (16) and the centrifuge ratio Flow Control servo valve (4) of walking is connected.Two binding post QV2 of PLC analog output module (18) and Mana are connected with centrifuge walking tube drawing proportional servo valve amplifier (17), and amplifier (17) and the centrifuge reverse ratio flow control valve (6) of walking is connected.
The utility model device by direct driving encoder rotation, is measured the reversal rate of fan-shaped bag with the upset of fan-shaped bag.Centrifuge drives encoder by dolly and moves, and the encoder sprocket wheel rotates under the effect of fixing chain, and the translational speed of centrifuge is measured by rotary pulsed number.The umber of pulse of measuring is directly sent into the PLC functional module, and the running parameter of the ratio flow control valve of analog quantity output loop is relatively revised in the computing of PLC process, has promptly revised the fan-shaped bag reversal rate and the centrifuge speed of travel.Therefore realized the Position Control of fan-shaped bag upset and centrifuge walking.This device has been realized the speed of travel of automatic control cast tube machine, the control accuracy height, dependable performance, can replace the handle manually-operated, can realize automatic casting molding, fundamentally solved the technical barrier of middle subtype water-cooled metal mould Centrifugal Casting Pipe Unit automatic casting molding, guaranteed the uniformity of cast tube wall thickness, the water-cooled metal mould centrifugal tube casting machine can be more widely used.
Description of drawings.
Fig. 1 is that the utility model is measured input wires figure.
Fig. 2 turns over bag proportioning valve block structure schematic diagram.
Fig. 3 is a centrifuge walking proportioning valve block structure schematic diagram.
Fig. 4 is a casting machine encoder measure portion structural representation.
Fig. 5 is the vertical view of Fig. 4.
Fig. 6 is a centrifuge walking measure portion structural representation.
Fig. 7 is the local enlarged diagram of Fig. 6.
Fig. 8 is that Fig. 6 A-A is to view.
Fig. 9 is the partial enlarged drawing of Fig. 8.
Figure 10 is PLC simulation output connection figure.
With reference to Fig. 1-10, water-cooled metal mould spun cast pipe machine closed loop control device mainly comprises measurement, hydraulic proportional SERVO CONTROL, three parts of PLC simulation output.Its concrete structure is: (a) measure portion: casting machine encoder 1 is connected with PLC functional template 14 by lead with centrifuge walking encoder 2, links to each other with the CPU of PLC by bus, has formed complete measurement loop.The fan-shaped bag upset of casting machine main shaft 7 is installed on the same axle with fan-shaped bag drive sprocket 8, and chain 9 is with sprocket wheel 8 and 10 engagements of encoder driven sprocket and drive 1 rotation of casting machine encoder, has been realized the detection of the reversal rate of fan-shaped bag by encoder 1.Centrifuge directly is connected with drag chain dolly 11, the centrifuge walking, drag chain dolly 11 moves, fixedly chain 13 is contained on the fixed support, centrifuge is encoder sprocket wheel 12 and centrifuge walking encoder 2 coaxial being contained on the drag chain dolly 11 initiatively, under the effect of fixing chain 13, initiatively encoder sprocket wheel 12 rotations of centrifuge.Because drive sprocket is coaxial with encoder, so encoder 2 rotates synchronously with sprocket wheel 12.Realized the measurement of the centrifuge speed of travel by encoder 2.(b) hydraulic proportional SERVO CONTROL: the ratio Flow Control servo valve 3 of the fan-shaped bag overturning oil cylinder of control casting machine movement velocity is connected with cast ratio Flow Control servo valve amplifier 15, be subjected to the control of PLC analog output module 18, to reach the purpose of control pouring molten iron amount.The ratio Flow Control servo valve 4 of control centrifuge walking oil cylinder movement velocity is connected with centrifuge walking cast proportional servo valve amplifier 16, the control that ratio flow control valve 6 is subjected to PLC analog output module 18 is returned in centrifuge walking ratio Flow Control servo valve 4 and centrifuge walking hydraulicdirectional control valve 5 and centrifuge walking, thereby reaches the variation of control centrifuge position.(c) PLC analog quantity output: two the binding post QVO and the Mana of PLC analog output module 18 are connected with cast ratio Flow Control servo valve amplifier 15, and amplifier 15 is connected with casting machine ratio Flow Control servo valve 3.Two binding post QV1 of PLC analog output module 18 and Mana are connected with centrifuge walking cast proportional servo valve amplifier 16, and amplifier 16 and the centrifuge ratio Flow Control servo valve 4 of walking is connected.Two binding post QV2 of PLC analog output module 18 and Mana are connected with centrifuge walking tube drawing proportional servo valve amplifier 17, and amplifier 17 and the centrifuge reverse ratio flow control valve 6 of walking is connected.
Claims (1)
1, a kind of water-cooled metal mould spun cast pipe machine closed loop control device, mainly comprise measurement, the hydraulic proportional SERVO CONTROL, three parts of PLC simulation output, it is characterized in that: (a) measure portion: casting machine encoder (1) is connected with PLC functional template (14) by lead with centrifuge walking encoder (2), the latter links to each other with the CPU of PLC by bus, formed complete measurement loop, the fan-shaped bag upset main shaft of casting machine (7) is installed on the same axle with fan-shaped bag drive sprocket (8), chain (9) is with sprocket wheel (8) and encoder driven sprocket (10) engagement and drive casting machine encoder (1) rotation, centrifuge directly is connected with drag chain dolly (11), the centrifuge walking, drag chain dolly (11) moves, fixedly chain (13) is contained on the fixed support, and centrifuge initiatively encoder sprocket wheel (12) is contained on the drag chain dolly (11) with centrifuge walking encoder (2) is coaxial; (b) hydraulic proportional SERVO CONTROL: the ratio Flow Control servo valve (3) of the fan-shaped bag overturning oil cylinder of casting machine movement velocity is connected with cast ratio Flow Control servo valve amplifier (15), be subjected to the control of PLC analog output module (18), the ratio Flow Control servo valve (4) of centrifuge walking oil cylinder movement velocity is connected with centrifuge walking cast proportional servo valve amplifier (16), and centrifuge walking ratio Flow Control servo valve (4) and centrifuge walking hydraulicdirectional control valve (5) and centrifuge walking are returned ratio flow control valve (6) and be subjected to the control of PLC analog output module (18); (c) PLC analog quantity output: two the binding post QV0 and the Mana of PLC analog output module (18) are connected with cast ratio Flow Control servo valve amplifier (15), amplifier (15) is connected with casting machine ratio Flow Control servo valve (3), two binding post QV1 of PLC analog output module (18) and Mana are connected with centrifuge walking cast proportional servo valve amplifier (16), amplifier (16) is connected with centrifuge walking ratio Flow Control servo valve (4), two binding post QV2 of PLC analog output module (18) and Mana are connected with centrifuge walking tube drawing proportional servo valve amplifier (17), and amplifier (17) and the centrifuge reverse ratio flow control valve (6) of walking is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02211145 CN2530755Y (en) | 2002-04-11 | 2002-04-11 | Water cooling metal centrifugal tube casting machine closed loop control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02211145 CN2530755Y (en) | 2002-04-11 | 2002-04-11 | Water cooling metal centrifugal tube casting machine closed loop control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2530755Y true CN2530755Y (en) | 2003-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02211145 Expired - Fee Related CN2530755Y (en) | 2002-04-11 | 2002-04-11 | Water cooling metal centrifugal tube casting machine closed loop control device |
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| CN (1) | CN2530755Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104525891A (en) * | 2014-11-28 | 2015-04-22 | 沈阳亚特重型装备制造有限公司 | Water cooled centrifugal machine of pipe die sleeve applied to long tube drawing/heating grating system |
| CN107900303A (en) * | 2017-11-14 | 2018-04-13 | 江苏环宇冶金科技有限公司 | A kind of centrifugal casting machine control system |
| CN109158569A (en) * | 2018-09-28 | 2019-01-08 | 新兴铸管股份有限公司 | Water-cooling type ductile iron pipe centrifuge and its control system |
| CN109261926A (en) * | 2018-11-23 | 2019-01-25 | 芜湖新兴铸管有限责任公司 | Cast tube centrifuge tube drawing pliers encoder and proportioning valve failure automatic protecting method |
| CN114012045A (en) * | 2021-09-16 | 2022-02-08 | 金川集团股份有限公司 | Positioning method of linear casting machine |
-
2002
- 2002-04-11 CN CN 02211145 patent/CN2530755Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104525891A (en) * | 2014-11-28 | 2015-04-22 | 沈阳亚特重型装备制造有限公司 | Water cooled centrifugal machine of pipe die sleeve applied to long tube drawing/heating grating system |
| CN104525891B (en) * | 2014-11-28 | 2017-02-22 | 沈阳亚特重型装备制造有限公司 | Water cooled centrifugal machine of pipe die sleeve applied to long tube drawing/heating grating system |
| CN107900303A (en) * | 2017-11-14 | 2018-04-13 | 江苏环宇冶金科技有限公司 | A kind of centrifugal casting machine control system |
| CN109158569A (en) * | 2018-09-28 | 2019-01-08 | 新兴铸管股份有限公司 | Water-cooling type ductile iron pipe centrifuge and its control system |
| CN109158569B (en) * | 2018-09-28 | 2020-12-22 | 新兴铸管股份有限公司 | Water-cooled type nodular cast iron pipe centrifuge and control system thereof |
| CN109261926A (en) * | 2018-11-23 | 2019-01-25 | 芜湖新兴铸管有限责任公司 | Cast tube centrifuge tube drawing pliers encoder and proportioning valve failure automatic protecting method |
| CN114012045A (en) * | 2021-09-16 | 2022-02-08 | 金川集团股份有限公司 | Positioning method of linear casting machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |