CN103801751B - Based on the fully-automatic plate shearing machine hydraulic system that PLC controls - Google Patents
Based on the fully-automatic plate shearing machine hydraulic system that PLC controls Download PDFInfo
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- CN103801751B CN103801751B CN201410088524.0A CN201410088524A CN103801751B CN 103801751 B CN103801751 B CN 103801751B CN 201410088524 A CN201410088524 A CN 201410088524A CN 103801751 B CN103801751 B CN 103801751B
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Abstract
Based on the fully-automatic plate shearing machine hydraulic system that PLC controls, belong to hydraulic system of cutting machine field, mainly comprise first, second identical shear cylinder, the hydraulic control system of two identical binder cylinder, shear cylinder and binder cylinders and PLC control system; The hydraulic control system of shear cylinder and binder cylinder comprises fuel tank, hydraulic pump, motor, check valve, the first Pressure gauge, the second Pressure gauge, pilot operated compound relief valve, two-position two-way solenoid valve, accumulator, pressure-reducing valve, travel switch, overflow valve, two-position four-way solenoid valve and dual hydraulic control one-way valve.The present invention adopts PLC control system to realize the accurate control of system, and is provided with the Contactless stroke switch that PLC control system accurately controls, and plate is located more accurate, the quality shearing plate is more excellent.
Description
Technical field
The invention belongs to hydraulic system of cutting machine field, be specially a kind of fully-automatic plate shearing machine hydraulic system controlled based on PLC.
Background technology
Along with industrial expansion, the automaticity of engineering goods is more and more higher, and the pollution of environment is now more and more serious simultaneously, and the requirement of energy-saving and emission-reduction is also more and more higher, and both proposes brand-new requirement and guiding all to the design of engineering goods.At present, the automaticity of large-scale plate shearing machine is low, mostly adopts Non-follow control and semiautomatic control, and production efficiency is low, and observable index is comparatively large, and relatively more serious to the pollution of environment, the quality simultaneously shearing plate is not high yet, can only meet general quality requirement yet.
Summary of the invention
The object of the invention is for current large-scale plate shearing machine automaticity low, production efficiency is low, the shortcomings such as energy consumption is large, provides the fully-automatic plate shearing machine hydraulic system controlled based on PLC that a kind of shearing quality is higher, energy consumption is lower, automaticity is higher.
The technical scheme realizing above-mentioned purpose is: the fully-automatic plate shearing machine hydraulic system controlled based on PLC, mainly comprises first, second identical shear cylinder, the hydraulic control system of two identical binder cylinder, shear cylinder and binder cylinders and PLC control system; The hydraulic control system of shear cylinder and binder cylinder comprises fuel tank, hydraulic pump, motor, check valve, the first Pressure gauge, the second Pressure gauge, pilot operated compound relief valve, two-position two-way solenoid valve, accumulator, pressure-reducing valve, travel switch, overflow valve, two-position four-way solenoid valve and dual hydraulic control one-way valve; Described motor is connected with hydraulic pump, the oil-in of hydraulic pump connects fuel tank, the oil-out of the oil-in connecting fluid press pump of check valve, the oil-in of pilot operated compound relief valve connects the oil-out of check valve, the oil-out of pilot operated compound relief valve connects fuel tank, the outside control mouth of pilot operated compound relief valve connects the oil-in of two-position two-way solenoid valve, and the oil-out of two-position two-way solenoid valve connects fuel tank; The pressure oil port P of described two-position four-way solenoid valve is connected with the oil-out of check valve, the oil return inlet T of two-position four-way solenoid valve connects fuel tank, the actuator port A of two-position four-way solenoid valve connects the oil-in A1 of dual hydraulic control one-way valve, the actuator port B of two-position four-way solenoid valve connects the oil-in A2 of dual hydraulic control one-way valve, the actuator port B1 of dual hydraulic control one-way valve connects the rodless cavity of the first shear cylinder, the rod chamber of the first shear cylinder is connected with the rodless cavity of the second shear cylinder, and the rod chamber of the second shear cylinder is connected with the actuator port B2 of dual hydraulic control one-way valve; The oil-in of described pressure-reducing valve is connected with the oil-out of check valve, accumulator is connected with between the oil-in and the oil-out of check valve of pressure-reducing valve, the oil-out of pressure-reducing valve is connected with the oil-in of two binder cylinders, overflow valve and the second Pressure gauge respectively, the oil-out of described overflow valve connects fuel tank, described two binder cylinders are single-acting plunger type hydraulic cylinder, and wherein the bottom of a binder cylinder is provided with travel switch; Described two-position two-way solenoid valve, two-position four-way solenoid valve and travel switch are connected with PLC control system respectively, realize automatically controlling.
Optimally, described travel switch is Contactless stroke switch.
Optimally, one-way speed-regulating valve is connected with between the rod chamber of the second shear cylinder and the actuator port B2 of dual hydraulic control one-way valve, the oil-in of described one-way speed-regulating valve is connected with the rod chamber of the second shear cylinder, and the oil-out of one-way speed-regulating valve is connected with the actuator port B2 of dual hydraulic control one-way valve.
Beneficial effect of the present invention:
(1) the present invention adopts PLC control system to realize the accurate control of system, and is provided with the Contactless stroke switch that PLC control system accurately controls, and plate is located more accurate, the quality shearing plate is more excellent.
(2) two binder cylinders of the present invention are provided with accumulator and carry out pressurize to binder cylinder, and the leakage of oil circuit in compensatory shear process, reduces the consumption of the energy, makes the energy consumption of system lower.
(3) oil return line of two shear cylinders of the present invention is connected to flow speed control valve, and make the decline of the process intermediate slide shearing plate more steady, the quality shearing plate is higher.
Accompanying drawing explanation
Fig. 1 is fundamental diagram of the present invention.
Detailed description of the invention
As shown in Figure 1, the present invention mainly comprises hydraulic control system 4 and the PLC control system 5 of identical first, second shear cylinder 1,2, two identical binder cylinder 3, shear cylinder and binder cylinder.
The hydraulic control system 4 of shear cylinder and binder cylinder comprises fuel tank 6, hydraulic pump 7, motor 8, check valve 9, first Pressure gauge 10, second Pressure gauge 11, pilot operated compound relief valve 12, two-position two-way solenoid valve 13, accumulator 14, pressure-reducing valve 15, travel switch 16, overflow valve 17, one-way speed-regulating valve 20, two-position four-way solenoid valve 18 and dual hydraulic control one-way valve 19.
Motor 8 is connected with hydraulic pump 7, the oil-in of hydraulic pump 7 connects fuel tank 6, the oil-out of the oil-in connecting fluid press pump 7 of check valve 9, the oil-in of pilot operated compound relief valve 12 connects the oil-out of check valve 9, the oil-out of pilot operated compound relief valve 12 connects fuel tank 6, the outside control mouth of pilot operated compound relief valve 12 connects the oil-in of two-position two-way solenoid valve 13, and the oil-out of two-position two-way solenoid valve 13 connects fuel tank 6.
The pressure oil port P of two-position four-way solenoid valve 18 is connected with the oil-out of check valve 9, the oil return inlet T of two-position four-way solenoid valve 18 connects fuel tank 6, the actuator port A of two-position four-way solenoid valve 18 connects the oil-in A1 of dual hydraulic control one-way valve 19, the actuator port B of two-position four-way solenoid valve 18 connects the oil-in A2 of dual hydraulic control one-way valve 19, the actuator port B1 of dual hydraulic control one-way valve 19 connects the rodless cavity of the first shear cylinder 1, the rod chamber of the first shear cylinder 1 is connected with the rodless cavity of the second shear cylinder 2, the rod chamber of the second shear cylinder 2 is connected with the actuator port B2 of dual hydraulic control one-way valve 19.
The oil-in of pressure-reducing valve 15 is connected with the oil-out of check valve 9, accumulator 14 is connected with between the oil-in and the oil-out of check valve 9 of pressure-reducing valve 15, the oil-out of pressure-reducing valve 15 is connected with the oil-in of two binder cylinders 3, overflow valve 17 and the second Pressure gauge 11 respectively, the oil-out of overflow valve 17 connects fuel tank 6, two binder cylinders 3 are single-acting plunger type hydraulic cylinder, and wherein the bottom of a binder cylinder 3 is provided with Contactless stroke switch 16; Two-position two-way solenoid valve 13, two-position four-way solenoid valve 18 and travel switch 16 are connected with PLC control system 5 respectively, realize automatically controlling.
The course of work of the present invention:
1, motor 8 starts, and the electromagnet 1DT of two-position two-way solenoid valve 13 must not be electric, system unloaded, and first, second shear cylinder 1,2 keeps motionless.
2, treat that plate arrives assigned address, Contactless stroke switch 16 dead electricity, the electromagnet 1DT of two-position two-way solenoid valve 13 obtains electric, and fluid enters two binder cylinders, 3 pairs of plates and compresses.
3, after plate compresses, the electromagnet 2DT of two-position four-way solenoid valve 18 obtains electric, and fluid enters the rodless cavity of two-position four-way solenoid valve 18, and knife rest declines, and shears plate.
4, treat that plate cutting is complete, the electromagnet 2DT dead electricity of two-position four-way solenoid valve 18, the 3DT of two-position four-way solenoid valve 18 obtains electric, and fluid enters the rod chamber of two-position four-way solenoid valve 18, tool rest return stroke.
5, treat that tool rest return stroke is complete, the 1DT dead electricity of two-position two-way solenoid valve 13, system unloaded, two binder cylinder 3 backhauls under self spring action, Contactless stroke switch 16 obtains electric.
Claims (3)
1. based on the fully-automatic plate shearing machine hydraulic system that PLC controls, it is characterized in that: mainly comprise first, second identical shear cylinder, the hydraulic control system of two identical binder cylinder, shear cylinder and binder cylinders and PLC control system; The hydraulic control system of shear cylinder and binder cylinder comprises fuel tank, hydraulic pump, motor, check valve, the first Pressure gauge, the second Pressure gauge, pilot operated compound relief valve, two-position two-way solenoid valve, accumulator, pressure-reducing valve, travel switch, overflow valve, two-position four-way solenoid valve and dual hydraulic control one-way valve; Described motor is connected with hydraulic pump, the oil-in of hydraulic pump connects fuel tank, the oil-out of the oil-in connecting fluid press pump of check valve, the oil-in of pilot operated compound relief valve connects the oil-out of check valve, the oil-out of pilot operated compound relief valve connects fuel tank, the outside control mouth of pilot operated compound relief valve connects the oil-in of two-position two-way solenoid valve, and the oil-out of two-position two-way solenoid valve connects fuel tank; The pressure oil port P of described two-position four-way solenoid valve is connected with the oil-out of check valve, the oil return inlet T of two-position four-way solenoid valve connects fuel tank, the actuator port A of two-position four-way solenoid valve connects the oil-in A1 of dual hydraulic control one-way valve, the actuator port B of two-position four-way solenoid valve connects the oil-in A2 of dual hydraulic control one-way valve, the actuator port B1 of dual hydraulic control one-way valve connects the rodless cavity of the first shear cylinder, the rod chamber of the first shear cylinder is connected with the rodless cavity of the second shear cylinder, and the rod chamber of the second shear cylinder is connected with the actuator port B2 of dual hydraulic control one-way valve; The oil-in of described pressure-reducing valve is connected with the oil-out of check valve, accumulator is connected with between the oil-in and the oil-out of check valve of pressure-reducing valve, the oil-out of pressure-reducing valve is connected with the oil-in of two binder cylinders, overflow valve and the second Pressure gauge respectively, the oil-out of described overflow valve connects fuel tank, described two binder cylinders are single-acting plunger type hydraulic cylinder, and wherein the bottom of a binder cylinder is provided with travel switch; Described two-position two-way solenoid valve, two-position four-way solenoid valve and travel switch are connected with PLC control system respectively, realize automatically controlling.
2. the fully-automatic plate shearing machine hydraulic system controlled based on PLC according to claim 1, is characterized in that: described travel switch is Contactless stroke switch.
3. the fully-automatic plate shearing machine hydraulic system controlled based on PLC according to claim 1 and 2, it is characterized in that: between the rod chamber of the second shear cylinder and the actuator port B2 of dual hydraulic control one-way valve, be connected with one-way speed-regulating valve, the oil-in of described one-way speed-regulating valve is connected with the rod chamber of the second shear cylinder, and the oil-out of one-way speed-regulating valve is connected with the actuator port B2 of dual hydraulic control one-way valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410088524.0A CN103801751B (en) | 2014-03-12 | 2014-03-12 | Based on the fully-automatic plate shearing machine hydraulic system that PLC controls |
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| CN201410088524.0A CN103801751B (en) | 2014-03-12 | 2014-03-12 | Based on the fully-automatic plate shearing machine hydraulic system that PLC controls |
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| CN103801751A CN103801751A (en) | 2014-05-21 |
| CN103801751B true CN103801751B (en) | 2015-12-16 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105889166A (en) * | 2014-12-18 | 2016-08-24 | 无锡锡锻机床有限公司 | Series synchronous hydraulic system of numerical control right-angle shearing machine |
| CN105234472B (en) * | 2015-09-22 | 2017-08-25 | 广船国际有限公司 | A kind of hydraulic system of cutter |
| CN105149412B (en) * | 2015-09-29 | 2017-07-04 | 安徽省三力机床制造股份有限公司 | A kind of plate fluting hydraulic shearing machine and its hydraulic system, application method |
| CN105499684A (en) * | 2016-02-03 | 2016-04-20 | 江苏龙胜机床制造有限公司 | Hydraulic system of plate shearing machine |
| CN105537664A (en) * | 2016-02-03 | 2016-05-04 | 江苏龙胜机床制造有限公司 | Hydraulic system of plate shearing machine |
| CN106270722B (en) * | 2016-08-31 | 2018-04-03 | 安徽省华夏机床制造有限公司 | A kind of control method of lock formula hydraulic system of cutting machine |
| CN106640800B (en) * | 2017-01-09 | 2019-03-15 | 南安市捷佳液压机械有限公司 | A kind of hydraulic system applied in automatic hydraulic blanking iron cutting machine |
| CN106975784A (en) * | 2017-05-23 | 2017-07-25 | 南通利王剪折机床有限公司 | Compound transmission plate shearer drive system |
| CN115972664A (en) * | 2022-12-19 | 2023-04-18 | 山东泰丰智能控制股份有限公司 | Angle modulation device control system |
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| WO2000051770A1 (en) * | 1999-02-10 | 2000-09-08 | Hydea S.R.L. | Sheet-metal shearing machine for great lengths of cut |
| CN2818031Y (en) * | 2005-04-21 | 2006-09-20 | 南京埃尔法电液技术有限公司 | Hydraulic system of brake style plate shearing machine |
| CN102009220A (en) * | 2010-07-12 | 2011-04-13 | 周建波 | Hydraulic transmission device for plate shearing machine |
| CN201855997U (en) * | 2010-11-09 | 2011-06-08 | 马鞍山市中亚机床制造有限公司 | Plate shearing machine with shearing angle adjusting function |
| CN203696090U (en) * | 2014-03-12 | 2014-07-09 | 南通恒力重工机械有限公司 | Full-automatic plate shearer hydraulic system based on PLC (programmable logic controller) control |
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2014
- 2014-03-12 CN CN201410088524.0A patent/CN103801751B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000051770A1 (en) * | 1999-02-10 | 2000-09-08 | Hydea S.R.L. | Sheet-metal shearing machine for great lengths of cut |
| CN2818031Y (en) * | 2005-04-21 | 2006-09-20 | 南京埃尔法电液技术有限公司 | Hydraulic system of brake style plate shearing machine |
| CN102009220A (en) * | 2010-07-12 | 2011-04-13 | 周建波 | Hydraulic transmission device for plate shearing machine |
| CN201855997U (en) * | 2010-11-09 | 2011-06-08 | 马鞍山市中亚机床制造有限公司 | Plate shearing machine with shearing angle adjusting function |
| CN203696090U (en) * | 2014-03-12 | 2014-07-09 | 南通恒力重工机械有限公司 | Full-automatic plate shearer hydraulic system based on PLC (programmable logic controller) control |
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