CN202116932U - Hydraulic system of pulp package pressing machine - Google Patents
Hydraulic system of pulp package pressing machine Download PDFInfo
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- CN202116932U CN202116932U CN2011201934960U CN201120193496U CN202116932U CN 202116932 U CN202116932 U CN 202116932U CN 2011201934960 U CN2011201934960 U CN 2011201934960U CN 201120193496 U CN201120193496 U CN 201120193496U CN 202116932 U CN202116932 U CN 202116932U
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Abstract
A hydraulic system of a pulp package pressing machine comprises three high-pressure regulating valves for regulating pressure of the system. Oil outlets are connected together in parallel and connected with oil inlets of an integrated block of the system, and the oil inlets are respectively connected with three high-pressure oil sources to form two working power sources and one standby power source. An inserted-mounting type pressure valve group for controlling the movement direction of an oil cylinder, a first inserted-mounting type direction valve group, an inserted-mounting type shuttle valve control valve group and a second inserted-mounting type direction valve group are used in paired mode. An electro-hydraulic proportional reversing valve for pre-releasing pressure to the cylinder is arranged. The system adopts a constant pressure variable piston pump, the noise is low, and energy sources are saved. Large amounts of inserted-mounting type hydraulic valves are used to enable oil in the system to flow smoothly, the pressure loss to be small and response to be quick, thereby further reducing energy consumption, improving movement velocity and work efficiency, achieving automated work and alleviating labor intensity of workers.
Description
Affiliated technical field
Papermaking equipment, a kind of slurry bag hydraulic system of press that is used for the paper pulp extrusion modling.
Background technology
In paper-making process, be puffy after pulp production is come out, be unfavorable for the storage transportation, so need bundle and package.Prior art adopts simple machinery that the slurry bag is packed, and efficient is low, and energy consumption is big, and man-made noise is big.
The utility model content
The utility model aims to provide a kind of hydraulic system that overcomes the slurry bag press of above-mentioned prior art weak point; Utilize hydraulic drive and the control technology particularly two-way plug-in valve in the hydraulic technique, electro-hydraulic proportional valve etc., accomplishing to paper pulp packing moulding provides power and utilizes its efficient operation of Controlled by Programmable Controller.
For realizing above-mentioned purpose; The utility model adopts 3 high pressure fuel sources (two workers one are equipped with); By plug-in high-pressure pressure regulating valve settings security of system oil pressure, implement control through plug-in pressure valve group, plug-in shuttle valve control valve group, the first plug-in direction valve group, the second plug-in direction valve group, band buffering plug-in direction valve group, electro-hydraulic proportion reversing valve, get into then in each chamber of oil cylinder; Promote the oil cylinder motion and act on slurry to wrap, accomplish extruding and moulding.The effect of surge-tank is in the quick descending process of oil cylinder, to give the oil cylinder repairing, can reduce system energy consumption and save cost of manufacture, opens prefill valve with auxiliary oil sources P4 during the oil cylinder return action, makes oil cylinder ability quick return, improves work efficiency.
The technical scheme of utility model is: slurry bag hydraulic system of press; Three high-pressure pressure regulating valve groups that are used for regulating system pressure are arranged; Oil-out connects together and links to each other with the oil-in of system integration piece; Oil-in then links to each other with three high pressure fuel sources respectively, realizes the setting to the security of system oil pressure, forms the power source that two workers one are equipped with; The plug-in pressure valve group of the direction of motion of control oil cylinder and the first plug-in direction valve group, plug-in shuttle valve control valve group and the second plug-in direction valve are formed using; Band buffering plug-in direction valve group is participated in the rapid movement of control oil cylinder and compacting at a slow speed; Be provided with an electro-hydraulic proportion reversing valve that is used for oil cylinder is carried out preparatory pressure release; Above-mentioned each valve is installed concentratedly on an integrated package, presses hydraulic principle through the duct, inside in the integrated package and connects, and the oil-in of integrated package is connected with the oil-out of high-pressure pressure regulating valve group through conduit under fluid pressure, and oil-out then is connected with each chamber of oil cylinder; Auxiliary oil sources links to each other with prefill valve through conduit under fluid pressure.
The pressure measurement interface is set on the described integrated package.
The place, two chambeies of said oil cylinder is provided with two upward pressure sensors, on electric, forms closed-loop control with electro-hydraulic proportion reversing valve.
The advantage of the utility model: native system adopts the constant-pressure variable plunger displacement pump, and noise is low, but automatic variable is worked fluid under high-pressure low-flow during at up to operating pressure, the saving energy; A large amount of plug-in hydraulic valves that use make oily the circulation freely in the system, and the pressure loss is little, and response speed is fast, further reduces energy consumption, improves movement velocity; Use band buffering plug-in direction valve group and electro-hydraulic proportion reversing valve, improved, greatly reduce the hydraulic shock in the system the control accuracy of oil cylinder motion with extruding force; Utilize prefill valve and high-order surge-tank can make oil cylinder in idle stroke, realize rapid movement, increase work efficiency; In the pressing process of slurry bag; Utilize the compacting of the constant voltage function realization quick and stable of hydraulic system; Pressing speed is fast and pressing result good, uses Controlled by Programmable Controller and electro-hydraulic proportion reversing valve, and accurately control presses down, presses slowly time and actions such as slow pressure pressure, dwell time, release time, quick return fast; And can realize automatically working, alleviate labor strength.
Description of drawings
Accompanying drawing is slurry bag hydraulic system of press figure.
Among the figure: 1-high-pressure pressure regulating valve group; 2-plug-in pressure valve group; 3-plug-in shuttle valve control valve group; The 4-first plug-in direction valve group; The 5-second plug-in direction valve group; 6-band buffering plug-in direction valve group; The 7-electro-hydraulic proportion reversing valve; The 8-prefill valve; The 9-oil cylinder; The 10-surge-tank; Table 1 ~ table 4 is the direct-reading Pressure gauge; A, B, C are three cavitys in the oil cylinder 9; SP1/SP2 is a pressure sensor; YA1 ~ YA8 is a valve control electromagnet; YA9 is a proportion electro-magnet.
The specific embodiment
Further introduce the content of utility model below in conjunction with accompanying drawing and embodiment.
As shown in the figure; 3 high pressure fuel sources (P1, P2, P3, two workers one are equipped with) are by high-pressure pressure regulating valve group 1 initialization system safety oil pressure; Implement control through plug-in pressure valve group, plug-in shuttle valve control valve group, the first plug-in direction valve group, the second plug-in direction valve group, band buffering plug-in direction valve group, electro-hydraulic proportion reversing valve 7; Get into then in oil cylinder 9 each chamber, promote oil cylinder 9 motions and act on slurry to wrap, accomplish extruding and moulding.The effect of surge-tank 10 is in oil cylinder 9 quick descending processes, to give the oil cylinder repairing, can reduce system energy consumption and save cost of manufacture, opens prefill valve 8 with auxiliary oil sources P4 during oil cylinder 9 return actions, makes oil cylinder 9 ability quick returns, improves work efficiency.
The high-pressure pressure regulating valve group that is used for regulating system pressure, oil-out connect together and link to each other with the oil-in of system integration piece, and oil-in then links to each other with three high pressure fuel sources respectively, realize the setting to the security of system oil pressure, form the power source that two workers one are equipped with; The plug-in pressure valve group of the direction of motion of control oil cylinder and the first plug-in direction valve group, plug-in shuttle valve control valve group and the second plug-in direction valve are formed using; Band buffering plug-in direction valve group is participated in the rapid movement of control oil cylinder and compacting at a slow speed; Be provided with an electro-hydraulic proportion reversing valve that is used for oil cylinder is carried out preparatory pressure release; Above-mentioned each valve is installed concentratedly on an integrated package, presses hydraulic principle through the duct, inside in the integrated package and connects, and the oil-in of integrated package is connected with the oil-out of high-pressure pressure regulating valve group through conduit under fluid pressure, and oil-out then is connected with each chamber of oil cylinder; Auxiliary oil sources links to each other with prefill valve 8 through conduit under fluid pressure.
The pressure measurement interface is set on the integrated package is used for connection table 1, table 2, table 3, table 4.The B of oil cylinder 9, place, C two chambeies are provided with pressure sensor SP1, pressure sensor SP2, on electric, form closed-loop control with electro-hydraulic proportion reversing valve 7.
3 of high pressure fuel sources also respectively are furnished with high-pressure pressure regulating valve group 1 cover, and wherein 2 is working equipment, and 1 is stand-by equipment (two workers one are equipped with).When working equipment breaks down, can in time switch to stand-by equipment, the unlikely shutdown event that causes.High pressure fuel source in sucking-off and the ramming system, by high-pressure pressure regulating valve group 1 initialization system safety oil pressure, prevents the super high pressure accident that is caused by fault with hydraulic oil from fuel tank.Table 1 display system oil pressure, when not working, the dead electricity through electromagnet YA1, YA2, YA3 can make system unloaded, and this moment, system energy consumption was extremely low; During work, electromagnet YA1, YA2, YA3 get electric set up oil pressure and work done, have both saved the energy, have avoided the frequent start-stop of motor again and cause the too fast damage of equipment.
During work, electromagnet YA4, YA6 get under electrician's condition, and the hydraulic oil that high pressure fuel source P1, P2 extrude combines; Hydraulic oil gets into the A chamber of oil cylinder 9 through the first plug-in direction valve group 4, and promotes the descent of piston of oil cylinder 9, and this moment, the B chamber of oil cylinder 9 will produce negative pressure owing to the descending of piston; Prefill valve 8 is opened under negative pressure; Hydraulic oil in the surge-tank 10 is inhaled into the B chamber of oil cylinder 9 and is full of the B chamber, makes oil cylinder descending fast, and the fluid in the C chamber is extruded oil cylinder 9; Flow back in the fuel tank through plug-in pressure valve group 2, plug-in pressure valve group 2 makes the C chamber keep certain back pressure to guarantee the easy motion of oil cylinder 9.
Behind the oil cylinder contact slurry bag, pressure begins to raise, during to pressure sensor SP1 sender value; SP1 sender Comparative Examples electromagnet YA9 imports the direct current positive potential and makes the right position entering work of electro-hydraulic proportion reversing valve 7, and hydraulic oil gets into A, B two chambeies of oil cylinder 9 simultaneously, and prefill valve 8 is cut out and cut off the runner of oil cylinder 9 and surge-tank by oil pressure; At this moment; Oil cylinder 9 will be driven by high pressure fuel source fully, get into high pressure low speed extruding operating mode, and table 2, table 3 show oil cylinder 9A, B two cavity oil pressure value respectively.After slurry bag compacting is accomplished,, and in the A of oil cylinder 9, B chamber, be full of high-pressure and hydraulic oil because still there is certain bounce-back in the slurry bag; Release is too fast can to produce strong rebounce and hydraulic shock; Produce impact shock and damage equipment, so make the whole dead electricity of electromagnet YA1 ~ YA7 earlier, electromagnet YA8 gets; Band buffering plug-in direction valve group 6 is slowly opened, and links up A, B two chambeies of oil cylinder 9.
Simultaneously; Comparative Examples electromagnet YA9 input direct current negative potential makes position, the left side entering work of electro-hydraulic proportion reversing valve 7 and a very little aperture can only be arranged, the high-pressure and hydraulic oil in the A of oil cylinder 9, B two chambeies by the valve flow of this little aperture to fuel tank; Oil pressure is slowly discharged; Strengthen the aperture of electro-hydraulic proportion reversing valve 7 more gradually, oil pressure is discharged fully, through controlling the time completion release operating mode of this process.After pressure sensor SP1, SP2 pass low-voltage signal back simultaneously; Auxiliary oil sources P4 is with prefill valve 8 reverse openings; Electromagnet YA1, YA2, YA5, YA7 energising simultaneously; Plug-in shuttle valve control valve group 3 is opened, and the position, a left side of proportion electro-magnet YA9 control electro-hydraulic proportion reversing valve 7 is to fully open position, and hydraulic oil gets into the C chamber of oil cylinder 9 through plug-in shuttle valve control valve group 3; Oil cylinder is rollback under the effect of hydraulic oil, and the hydraulic oil in oil cylinder 9A, the B chamber flows back to surge-tank 10 and fuel tank through prefill valve 8, the second plug-in direction valve group 5, electro-hydraulic proportion reversing valve 7.After oil cylinder 20 was return fully, each electromagnet dead electricity was accomplished an operation cycle, gets into the starting state of next operation cycle simultaneously.
Claims (3)
1.
slurry wraps hydraulic system of press, and it is characterized in that: three high-pressure pressure regulating valve groups that are used for regulating system pressure are arranged, and oil-out connects together and links to each other with the oil-in of system integration piece, and oil-in then links to each other with three high pressure fuel sources respectively; The plug-in pressure valve group of the direction of motion of control oil cylinder and the first plug-in direction valve group, plug-in shuttle valve control valve group and the second plug-in direction valve are formed using; Band buffering plug-in direction valve group is participated in the rapid movement of control oil cylinder and compacting at a slow speed; Be provided with an electro-hydraulic proportion reversing valve that is used for oil cylinder is carried out preparatory pressure release; Above-mentioned each valve is installed concentratedly on an integrated package, presses hydraulic principle through the duct, inside in the integrated package and connects, and the oil-in of integrated package is connected with the oil-out of high-pressure pressure regulating valve group through conduit under fluid pressure, and oil-out then is connected with each chamber of oil cylinder; Auxiliary oil sources links to each other with prefill valve through conduit under fluid pressure.
2.
is characterized in that: the pressure measurement interface is set on the integrated package according to the slurry bag hydraulic system of press of claim 1.
3.
is characterized in that according to the slurry bag hydraulic system of press of claim 1: the place, two chambeies of oil cylinder is provided with two pressure sensors, on electric, forms closed-loop control with electro-hydraulic proportion reversing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201934960U CN202116932U (en) | 2011-06-10 | 2011-06-10 | Hydraulic system of pulp package pressing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201934960U CN202116932U (en) | 2011-06-10 | 2011-06-10 | Hydraulic system of pulp package pressing machine |
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| Publication Number | Publication Date |
|---|---|
| CN202116932U true CN202116932U (en) | 2012-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201934960U Expired - Fee Related CN202116932U (en) | 2011-06-10 | 2011-06-10 | Hydraulic system of pulp package pressing machine |
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| CN (1) | CN202116932U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883576A (en) * | 2013-12-31 | 2014-06-25 | 三一汽车起重机械有限公司 | Pounder hydraulic system and engineering machinery |
| CN105587694A (en) * | 2016-02-29 | 2016-05-18 | 湖州佳宁印刷有限公司 | Pressing hydraulic system of decoration printing paper manufacturing system |
| CN106122138A (en) * | 2016-08-04 | 2016-11-16 | 宁波普瑞达液压科技有限公司 | A kind of hydraulic circuit for controlling the High-Speed Automatic variable of two-chamber oil cylinder |
| CN112096670A (en) * | 2020-09-21 | 2020-12-18 | 广东海德利森一氢科技有限公司 | Hydraulic system and hydraulic pressure control method |
-
2011
- 2011-06-10 CN CN2011201934960U patent/CN202116932U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103883576A (en) * | 2013-12-31 | 2014-06-25 | 三一汽车起重机械有限公司 | Pounder hydraulic system and engineering machinery |
| CN103883576B (en) * | 2013-12-31 | 2016-05-11 | 三一汽车起重机械有限公司 | Hammer ram hydraulic system and engineering machinery |
| CN105587694A (en) * | 2016-02-29 | 2016-05-18 | 湖州佳宁印刷有限公司 | Pressing hydraulic system of decoration printing paper manufacturing system |
| CN106122138A (en) * | 2016-08-04 | 2016-11-16 | 宁波普瑞达液压科技有限公司 | A kind of hydraulic circuit for controlling the High-Speed Automatic variable of two-chamber oil cylinder |
| CN106122138B (en) * | 2016-08-04 | 2019-08-27 | 宁波普瑞达液压科技有限公司 | It is a kind of for controlling the hydraulic circuit of the High-Speed Automatic variable of two-chamber oil cylinder |
| CN112096670A (en) * | 2020-09-21 | 2020-12-18 | 广东海德利森一氢科技有限公司 | Hydraulic system and hydraulic pressure control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20130610 |