CN103128813B - Liquid-filled type hydraulic system of multi-oil cylinder and large stroke multilayer press - Google Patents
Liquid-filled type hydraulic system of multi-oil cylinder and large stroke multilayer press Download PDFInfo
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- CN103128813B CN103128813B CN201310028710.0A CN201310028710A CN103128813B CN 103128813 B CN103128813 B CN 103128813B CN 201310028710 A CN201310028710 A CN 201310028710A CN 103128813 B CN103128813 B CN 103128813B
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- oil
- valve
- oil cylinders
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- low pressure
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- 239000007788 liquid Substances 0.000 title claims abstract description 14
- 239000012530 fluid Substances 0.000 claims description 13
- 239000000446 fuel Substances 0.000 claims description 12
- 239000002828 fuel tank Substances 0.000 claims description 4
- 238000003825 pressing Methods 0.000 abstract description 2
- 230000002146 bilateral effect Effects 0.000 abstract 4
- 210000000078 claw Anatomy 0.000 abstract 1
- 238000007731 hot pressing Methods 0.000 abstract 1
- 235000015250 liver sausages Nutrition 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- 210000000664 rectum Anatomy 0.000 description 4
- 238000007599 discharging Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
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- Fluid-Pressure Circuits (AREA)
Abstract
A liquid-filled type hydraulic system of a multi-oil cylinder and large stroke multilayer press relates to a hydraulic system of a multilayer hydraulic press and comprises an oil pump which is connected with a motor, a control valve, pipelines, a pressure meter, an oil tank, a hydraulic control system, an electronic control system and a plurality of oil cylinders which are connected with a beam which is arranged under the press. The liquid-filled type hydraulic system of the multi-oil cylinder and large stroke multilayer press has the advantages of reducing the installed power, saving energy and reducing consumption, being rapid in lifting of a closure stage and improving the production efficiency due to the facts that the plurality of oil cylinders are divided into a plurality of intermediate oil cylinders 30 and a plurality of bilateral oil cylinders 31; the plurality of bilateral oil cylinders 31 are connected with the beam 32 which is arranged under the press in a hanging mode through hanging claws 34; a high pressure oil pump group and a low pressure oil pump group are utilized to start and work in a grading mode; outputting oil liquid respectively enters into oil inlet chambers of the plurality of intermediate oil cylinders 30 and the plurality of bilateral oil cylinders 31; a check valve is added between the pipelines of the high pressure oil pump group and the low pressure oil pump group; the plurality of intermediate oil cylinders 30 of a low pressure and large flow vane pump group feed liquid in a jack-up stage before a hot pressing pate is closed; and the plurality of bilateral oil cylinders 31 of the high pressure oil pump group and the plurality of intermediate oil cylinders 30 feed liquid in a pressing stage after closure.
Description
Technical field:
The present invention relates to hydraulic machinery, relate generally to and produce the multi-layer hydraulic press that bamboo wood artificial board, recombination plates are used, the particularly hydraulic system of hydraulic press.
Background technology:
For suppressing the multi-layer hydraulic press of various wood-based plates, its heating platen and hydraulic press sill breadth are larger, so be generally to adopt a plurality of hydraulic jacks top to lift, in prior art, in Multi-cylinder hydraulic system, be generally to adopt high-power high voltage oil pump unit, its installed power is large, and energy consumption is large, and the lifting speed before heating platen closure is slow.
Summary of the invention:
The present invention's object, is to provide the liquid-filled hydraulic system of the large stroke multidaylight press of a kind of Multi-cylinder, to reducing motor installed power, energy-saving and cost-reducing, and improves compacting efficiency.
The present invention is enforcement like this, the liquid-filled hydraulic system of the large stroke multidaylight press of a kind of Multi-cylinder, comprise oil pump, control valve, pipeline, Pressure gauge, fuel tank, hydraulic control system, the electric-control system being connected with motor and a plurality of oil cylinders that are connected with press sill, it is characterized in that a plurality of oil cylinders 30 and a plurality of oil cylinders 31 of two sides in the middle of described a plurality of oil cylinders are divided into.Described oil pump comprises high-pressure oil pump group and low pressure fuel pump group: high-pressure oil pump group comprises the first high-pressure plunger pump 4 and the second high-pressure plunger pump 5 being connected with 1M motor 1, its output fluid enters respectively the admission chamber of a plurality of oil cylinders 31 of two sides through the 1st check valve 23 and the 2nd check valve 24, meanwhile, its output is also connected to the 1st prefill valve 26.Low pressure fuel pump group comprises the first low pressure and mass flow vane pump 6 and the second low pressure and mass flow vane pump 7 being connected with 2M motor 2, the admission chamber of a plurality of oil cylinders 30 in the middle of its output fluid enters through the 3rd check valve 21 and the 4th check valve 22 respectively, meanwhile, the strong magnetic tube pipe filter 16 of its output termination hydraulic control one-way valve the 27, the 2nd prefill valve 28 and warp connects Solenoid ball valve 15.High-pressure oil pump group is connected to the 5th check valve 25 through output pipe and the low pressure fuel pump group of check valve between the output pipe of check valve.High-pressure oil pump group the first high-pressure plunger pump 4 and the second high-pressure plunger pump 5 are connected to respectively the 1st electromagnetic relief valve 9 and the 2nd electromagnetic relief valve 10.Low pressure fuel pump group the first low pressure and mass flow vane pump 6 and the second low pressure and mass flow vane pump 7 are connected to respectively the 3rd electromagnetic relief valve 11 and the 4th electromagnetic relief valve 12.A plurality of oil cylinders 31 of described two side are connected with the hanging of press sill by hanging pawl 34.
The beneficial effect of the invention:
In the middle of Multi-cylinder is divided into, a plurality of oil cylinders 30 and a plurality of oil cylinders 31 of a plurality of oil cylinder 31, two side of two sides are connected with 32 hangings of press sill by hanging pawl 34.Take two groups of oil pumps of high pressure and low pressure, segmentation starts, the oil suction chamber of a plurality of oil cylinders 30 and a plurality of oil cylinders 31 of two sides in the middle of its output fluid enters respectively.Between two groups of oil pump outputs of high pressure and low pressure, be added with check valve.The stage is lifted on top before heating platen closure, by low pressure and mass flow vane pump group, gives middle a plurality of oil cylinder 30 feed flows, and closed rear pressing stage is given middle a plurality of oil cylinders 30 and a plurality of oil cylinder 31 feed flows of two sides by high-pressure oil pump group.The present invention has reduced installed power, energy-saving and cost-reducing, and its close stage lifting is fast, enhances productivity.
Accompanying drawing explanation:
Accompanying drawing 1 organigram of the present invention
The specific embodiment:
The specific embodiment of the present invention is as shown in accompanying drawing one.A liquid-filled hydraulic system for the large stroke multidaylight press of Multi-cylinder, comprises oil pump, control valve, pipeline, Pressure gauge, fuel tank, hydraulic control system, the electric-control system being connected with motor and a plurality of oil cylinders that are connected with press sill.In the middle of described a plurality of oil cylinders are divided into, 4 oil cylinders of 2 each side of oil cylinder 30, two sides 2 oil cylinders, 31, two sides hang pawl 34 hangings by press sill.Oil pump comprises two groups of high-pressure oil pump group and low pressure fuel pump groups: wherein, high-pressure oil pump group comprises the first high-pressure plunger pump 4 and the second high-pressure plunger pump 5 being connected with 1M motor 1, its output fluid enters respectively the admission chamber of 4 oil cylinders 31 of two sides through the 1st check valve 23 and the 2nd check valve 24, meanwhile, its output is also connected to the 1st prefill valve 26.Low pressure fuel pump group comprises the first low pressure and mass flow vane pump 6 and the second low pressure and mass flow vane pump 7 being connected with 2M motor 2, the admission chamber of 2 oil cylinders 30 in the middle of its output fluid enters through the 3rd check valve 21 and the 4th check valve 22 respectively, meanwhile, its output also connects hydraulic control one-way valve 27, the 2nd prefill valve 28 and connects Solenoid ball valve 15 through strong magnetic tube pipe filter 16.High-pressure oil pump group is connected to the 5th check valve 25 through output pipe and the base pressure oil pump group of check valve between the output pipe of check valve.High-pressure oil pump group the first high-pressure plunger pump 4 and the second high-pressure plunger pump 5 are connected to respectively the 1st electromagnetic relief valve 9 and the 2nd electromagnetic relief valve 10.The first low pressure and mass flow vane pump 6 of low pressure fuel pump group and the second low pressure and mass flow vane pump 7 are connected to respectively the 3rd electromagnetic relief valve 11 and the 4th electromagnetic relief valve 12.Hydraulic control system of the present invention comprises the low discharge blade control pump 8 being connected with 3M motor 3, and its output connects the 2nd prefill valve 28 and hydraulic control one-way valve 27 through the 1st solenoid directional control valve 13, and meanwhile, its output also connects the 1st prefill valve 26 through the 2nd solenoid directional control valve 14.Blade control pump 8 is connected to overflow valve 29.
Hydraulic pressure process is as follows:
(1) press press close push button, the electromagnet 7YV of the electromagnet 3YV of 2M motor 2,3M motor 3, the 3rd electromagnetic relief valve 11, the electromagnet 4YV of the 4th electromagnetic relief valve 12, the 2nd solenoid directional control valve 14 obtains electric, the first low pressure and mass flow vane pump 6 and the second low pressure and mass flow vane pump 7 start, the fluid of discharging enters in middle 2 oil cylinder 30 chambeies through the 3rd check valve 21 and the 4th check valve 22 respectively, head on press sill 32 fast rise, heating platen closed gradually fast, now, because there being the blocking effect of the 5th check valve 25, fluid can not enter in two side 4 cylinder 31 chambeies.Top is lifted sill in uphill process and is hung the plunger that pawl 34 hauls two side 4 cylinders 31 and together rise, and makes to form in 4 cylinders negative pressure.Now, the low discharge blade control pump 8 being connected with 3M motor 3 starts, and the fluid of discharge is opened the 1st prefill valve 26 through the 2nd solenoid directional control valve 14, and the fluid of fuel tank is inhaled in two side 4 cylinder 31 chambeies through prefill valve 26.
(2) when sill approaches closure, the electromagnet 7YV dead electricity of 3M motor 3, the 2nd solenoid directional control valve 14, electromagnet 1YV, the 2YV of 1M motor 1, the 1st electromagnetic relief valve 9 and the 2nd electromagnetic relief valve 10 obtain electric, the first high-pressure plunger pump 4 and the second high-pressure plunger pump 5 start, the fluid of discharging enters in two side 4 cylinder 31 chambeies through the 1st check valve 23 and the 2nd check valve 24 respectively, meanwhile, also through the 5th check valve 25, enter in middle 2 cylinder chambeies 30.
(3) when press is completely closed, and pressure is while reaching the upper limit set pressure of 3KP electro connecting pressure gauge 19 and 4KP electro connecting pressure gauge 20,2M motor 2, electromagnet 3YV and 4YV dead electricity, mass flow blade pump 6 and 7 fuel cut-offs.
(4) when pressure reaches the upper limit set pressure of 1KP electric contact Voltage force table 17, electromagnet 1YV, 2YV dead electricity, high-pressure oil pump idle running, press enters packing state, and the time relay starts timing.At packing state, when Pressure Drop is during to the lower limit set pressure of 1KP electro connecting pressure gauge 17, electromagnet 2YV obtains electric, and by the second high-pressure plunger pump 5 feed flows, press starts ftercompction.
(5) dwell time arrives, and 3M motor 3, the 1st solenoid directional control valve 13 electromagnet 5YV, Solenoid ball valve 15 electromagnet 8YV obtain electric, and the high-voltage oil liquid in oil cylinder is through little latus rectum hydraulic control one-way valve 27 and the slow earial drainage of micro-latus rectum Solenoid ball valve 15, and press starts slow pressure release.When Pressure Drop is during to lower limit 0 pressure of 2KP electro connecting pressure gauge 18, electromagnet 5YV and 8YV dead electricity, the 1st solenoid directional control valve 13 electromagnet 6YV and the 2nd solenoid directional control valve 14 electromagnet 7YV obtain electric, fluid in oil cylinder is under each moving component gravity squeezing action, through large latus rectum the 2nd prefill valve 28 and large latus rectum the 1st prefill valve 26 Rapid Flow oil return casees.Sill and each layer of heating platen fall, and press backhaul, touches travel switch 33,3M motor 3, electromagnet 6YV and 7YV dead electricity, and backhaul stops, and a compacting cycle period finishes.
Claims (3)
1. the liquid-filled hydraulic system of the large stroke multidaylight press of Multi-cylinder, comprise oil pump, control valve, pipeline, Pressure gauge, fuel tank, hydraulic control system, the electric-control system being connected with motor and a plurality of oil cylinders that are connected with press sill, it is characterized in that a plurality of oil cylinders (30) and a plurality of oil cylinders of two sides (31) in the middle of described a plurality of oil cylinders are divided into; Described oil pump comprises high-pressure oil pump group and low pressure fuel pump group: high-pressure oil pump group comprises the first high-pressure plunger pump (4) and the second high-pressure plunger pump (5) being connected with 1M motor (1), its output fluid enters respectively the admission chamber of a plurality of oil cylinders of two sides (31) through the 1st check valve (23) and the 2nd check valve (24), meanwhile, its output is also connected to the 1st prefill valve (26); Low pressure fuel pump group comprises the first low pressure and mass flow vane pump (6) and the second low pressure and mass flow vane pump (7) being connected with 2M motor (2), its output fluid enters respectively the admission chamber of a plurality of oil cylinders in centre (30) through the 3rd check valve (21) and the 4th check valve (22), meanwhile, its output termination hydraulic control one-way valve (27), the 2nd prefill valve (28) and the strong magnetic tube pipe filter (16) of warp connect Solenoid ball valve (15); High-pressure oil pump group is connected to the 5th check valve (25) through output pipe and the low pressure fuel pump group of check valve between the output pipe of check valve; High-pressure oil pump group the first high-pressure plunger pump (4) and the second high-pressure plunger pump (5) are connected to respectively the 1st electromagnetic relief valve (9) and the 2nd electromagnetic relief valve (10); Low pressure fuel pump group the first low pressure and mass flow vane pump (6) and the second low pressure and mass flow vane pump (7) are connected to respectively the 3rd electromagnetic relief valve (11) and the 4th electromagnetic relief valve (12).
2. the liquid-filled hydraulic system of the large stroke multidaylight press of a kind of Multi-cylinder according to claim 1, it is characterized in that, described hydraulic control system comprises the low discharge blade control pump (8) being connected with 3M motor (3), its output connects the 2nd prefill valve (28) and hydraulic control one-way valve (27) through the 1st solenoid directional control valve (13), also through the 2nd solenoid directional control valve (14), connects the 1st prefill valve (26).
3. according to the liquid-filled hydraulic system of the large stroke multidaylight press of a kind of Multi-cylinder described in claim 1 or 2, it is characterized in that, a plurality of oil cylinders of described two side (31) are connected with the hanging of press sill by hanging pawl (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310028710.0A CN103128813B (en) | 2013-01-12 | 2013-01-12 | Liquid-filled type hydraulic system of multi-oil cylinder and large stroke multilayer press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310028710.0A CN103128813B (en) | 2013-01-12 | 2013-01-12 | Liquid-filled type hydraulic system of multi-oil cylinder and large stroke multilayer press |
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| Publication Number | Publication Date |
|---|---|
| CN103128813A CN103128813A (en) | 2013-06-05 |
| CN103128813B true CN103128813B (en) | 2014-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310028710.0A Expired - Fee Related CN103128813B (en) | 2013-01-12 | 2013-01-12 | Liquid-filled type hydraulic system of multi-oil cylinder and large stroke multilayer press |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595285A (en) * | 2014-12-19 | 2015-05-06 | 广德平江竹业制作有限公司 | Energy-saving board pressing machine for bamboo boards |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6205781B1 (en) * | 1999-02-25 | 2001-03-27 | Caterpillar Inc. | Fluid control system including a work element and a valve arrangement for selectively supplying pressurized fluid thereto from two pressurized fluid sources |
| US6293765B1 (en) * | 2000-05-08 | 2001-09-25 | Sauer-Danfoss Inc. | Tandem fixed displacement pump with torque control |
| CN101865107A (en) * | 2010-07-02 | 2010-10-20 | 张银根 | Ultrahigh voltage hydraulic pump station |
| CN102121485A (en) * | 2011-01-27 | 2011-07-13 | 济南易久自动化技术有限公司 | Controllable centralized oil supply hydraulic system with multiple press power for multiple hydraulic press machines |
| CN201931636U (en) * | 2010-11-01 | 2011-08-17 | 东莞进力机械科技有限公司 | Hydraulic press capable of realizing conversion control of high-low voltage |
| CN202001407U (en) * | 2011-01-27 | 2011-10-05 | 济南易久自动化技术有限公司 | Controllable multi-press power concentration oil supply hydraulic system of multiple hydraulic press machines |
| CN202626759U (en) * | 2012-02-16 | 2012-12-26 | 贾海民 | Mould pressing paper tube oil press with mould |
| CN203045918U (en) * | 2013-01-12 | 2013-07-10 | 青岛国森机械有限公司 | Transfusion type hydraulic system of multi-oil-cylinder large-stroke multilayer pressing machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004025764B4 (en) * | 2004-05-26 | 2018-09-13 | Zf Friedrichshafen Ag | Hydraulic circuit for supplying oil to an automatic, in particular a stepped automatic transmission for motor vehicles |
| US8347618B2 (en) * | 2009-05-13 | 2013-01-08 | Deere & Company | Dual pump hydraulic system |
-
2013
- 2013-01-12 CN CN201310028710.0A patent/CN103128813B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6205781B1 (en) * | 1999-02-25 | 2001-03-27 | Caterpillar Inc. | Fluid control system including a work element and a valve arrangement for selectively supplying pressurized fluid thereto from two pressurized fluid sources |
| US6293765B1 (en) * | 2000-05-08 | 2001-09-25 | Sauer-Danfoss Inc. | Tandem fixed displacement pump with torque control |
| CN101865107A (en) * | 2010-07-02 | 2010-10-20 | 张银根 | Ultrahigh voltage hydraulic pump station |
| CN201931636U (en) * | 2010-11-01 | 2011-08-17 | 东莞进力机械科技有限公司 | Hydraulic press capable of realizing conversion control of high-low voltage |
| CN102121485A (en) * | 2011-01-27 | 2011-07-13 | 济南易久自动化技术有限公司 | Controllable centralized oil supply hydraulic system with multiple press power for multiple hydraulic press machines |
| CN202001407U (en) * | 2011-01-27 | 2011-10-05 | 济南易久自动化技术有限公司 | Controllable multi-press power concentration oil supply hydraulic system of multiple hydraulic press machines |
| CN202626759U (en) * | 2012-02-16 | 2012-12-26 | 贾海民 | Mould pressing paper tube oil press with mould |
| CN203045918U (en) * | 2013-01-12 | 2013-07-10 | 青岛国森机械有限公司 | Transfusion type hydraulic system of multi-oil-cylinder large-stroke multilayer pressing machine |
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| CN103128813A (en) | 2013-06-05 |
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