CN104191027B - Hydraulic system of cutting machine - Google Patents
Hydraulic system of cutting machine Download PDFInfo
- Publication number
- CN104191027B CN104191027B CN201410415397.0A CN201410415397A CN104191027B CN 104191027 B CN104191027 B CN 104191027B CN 201410415397 A CN201410415397 A CN 201410415397A CN 104191027 B CN104191027 B CN 104191027B
- Authority
- CN
- China
- Prior art keywords
- valve
- block
- control valve
- hydraulic cylinder
- main hydraulic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Fluid-Pressure Circuits (AREA)
- Shearing Machines (AREA)
Abstract
The invention discloses a kind of hydraulic system of cutting machine, including hydraulic pump group, system pressure controls block, binder cylinder control valve block, several binder cylinders, main hydraulic cylinder control valve block and a pair main hydraulic cylinder, the outfan of hydraulic pump group controls block with system pressure respectively, binder cylinder control valve block input, main hydraulic cylinder control valve block input is connected, system pressure controls block outfan and leads to fuel tank, binder cylinder control valve block outfan is connected with several binder cylinder back cavities respectively, main hydraulic cylinder control valve block outfan and a pair main hydraulic cylinder back cavity are connected, a pair main hydraulic cylinder piston rod end is connected with on the upside of knife rest respectively.Present configuration is simple and convenient to operate, reduces manufacturing cost, in shearing force when constantly increasing, several binder cylinders are in packing state；The binder cylinder oil pressure being in packing state no longer increases, and pressure-plate-force no longer increases, and is cut panel surface and can or can not produce impression, improves by the surface quality of shear material.
Description
Technical field
The present invention relates to a kind of shearing machine, the hydraulic system of a kind of plate shearing machine, belong to pressure processing
Technical field.
Background technology
Plate shearing machine, when shear, if pressure-plate-force is inadequate, will be produced displacement by shear material in shear history,
When shearing end of a period, displacement becomes apparent from especially, so can make to be increased by shear material dimensional discrepancy.If binder
Power is excessive, makes to be cut panel surface and produces impression, also increases binder cylinder to frame and the load of binder beam simultaneously
Lotus, in order to ensure frame and the strength and stiffness of binder beam, only increases frame and the cross section face of binder beam
Long-pending, thus increase plate shearing machine overall weight, increase the manufacturing cost of plate shearing machine.
CN2818031Y Chinese invention patent discloses a kind of lock formula hydraulic system of cutting machine, this hydraulic system
Control valve include 2 two-bit triplet solenoid directional control valves, 2 2/2-way electromagnetic switch as poppet valve
Valve and 1 two four-way electromagnetic reversing valves, also air relief valve, hydraulic control one-way valve, balanced valve of check valve group
And oil pressure relay, in addition to integrated valve group, monomer valve amounts to 14 more than, and structure is complicated, fault
Hidden danger point is many.This hydraulic system functionally achieves the independent control of lock formula plate shearing machine binder action, and can
Regulating pressure-plate-force by air relief valve, oil pressure relay ensures pressure-plate-force accurate and effective, realizes binder simultaneously and shears
Order function, improve stability and the reliability of lock formula hydraulic system of cutting machine system.But, at lock
During formula plate shearing machine operation, along with shear go deep into, system oil pressure can raise further, due to air relief valve be by
Ratio carries out reducing pressure, and when its input oil pressure increases, its output oil pressure also can increase, and causes pressure-plate-force mistake
Greatly, cut panel surface and can be produced impression, affected by the surface quality of shear material.
Summary of the invention
It is an object of the invention to provide a kind of simple in construction, low cost, easy to operate, pressure-plate-force will not be along with
The hydraulic system of cutting machine that shearing force increases and increases.
The present invention is achieved by the following technical programs:
A kind of hydraulic system of cutting machine, including hydraulic pump group, system pressure control block, binder cylinder control valve block,
Several binder cylinders, main hydraulic cylinder control valve block and a pair main hydraulic cylinder, the outfan of hydraulic pump group respectively be
System Stress control block, binder cylinder control valve block input, main hydraulic cylinder control valve block input are connected, system
Stress control block outfan leads to fuel tank, binder cylinder control valve block outfan respectively with several binder cylinder back cavity phases
Even, main hydraulic cylinder control valve block outfan and a pair main hydraulic cylinder back cavity are connected, a pair main hydraulic cylinder piston rod
Termination is connected with on the upside of knife rest respectively.
The purpose of the present invention can also be realized further by techniques below measure.
Aforesaid hydraulic system of cutting machine, wherein said binder cylinder control valve block includes the 2/2-way of working connection
Hydraulicchange-over valve, and the check valve of binder cylinder control valve block oil circuit control and choke valve, hydraulic pump group exports
End is connected with 2/2-way hydraulicchange-over valve the first end, check valve not-go-end respectively, and check valve go side is by throttling
Valve is connected with 2/2-way hydraulicchange-over valve hydraulic control end respectively, 2/2-way hydraulicchange-over valve hydraulic control end, two
Two lead to hydraulicchange-over valve the second end is connected with several binder cylinder back cavities respectively.
Aforesaid hydraulic system of cutting machine, wherein said main hydraulic cylinder control valve block includes that two-bit triplet surges and changes
To valve, and the one-way throttle valve of main hydraulic cylinder control valve block oil circuit control and two four-way electromagnetic reversing valves,
Hydraulic pump group outfan respectively with two-bit triplet hydraulicchange-over valve the first end, two four-way electromagnetic reversing valves first
End is connected, and two four-way electromagnetic reversing valve the second ends are by one-way throttle valve and two-bit triplet hydraulicchange-over valve liquid
Control end is connected, and two-bit triplet hydraulicchange-over valve the 3rd end is connected with a pair main hydraulic cylinder back cavity respectively, two three
Logical hydraulicchange-over valve the second end leads to fuel tank.
Aforesaid hydraulic system of cutting machine, wherein system pressure control block includes two solenoid directional control valves, overflows
Valve and plug-in mounting valve member.
Aforesaid hydraulic system of cutting machine, one pair of which main hydraulic cylinder back cavity is connected by stop valve.
Present configuration is simple and convenient to operate, reduces manufacturing cost, and 3 control valve blocks of the present invention have
10 monomer valve replace 14 monomer valve of existing hydraulic system of cutting machine, decrease potential faults point, carry
The reliability of the high present invention and work efficiency.During plate shearing machine operation, oil pressure oil passes through main hydraulic cylinder control valve
Block oil circuit control opens two-bit triplet hydraulicchange-over valve；The hydraulic oil 2/2-way by binder cylinder control valve block
Hydraulicchange-over valve promotes that several binder cylinder plugs are descending pushes down by shear material, and a pair main hydraulic cylinder promotes cutter simultaneously
Frame declines shears plate；Along with the continuous increase of shearing force, system oil pressure increases the most therewith, closes two
Two lead to hydraulicchange-over valve, have cut off the back cavity oil circuit of several binder cylinder, and several binder cylinders are in packing state；
Along with proceeding of shearing, shearing force persistently increases, and system oil pressure constantly raises, but is in packing state
Binder cylinder oil pressure no longer increase, pressure-plate-force no longer increases, and is cut panel surface and can or can not produce impression, carries
High by the surface quality of shear material.
Advantages of the present invention and feature, by by the non-limitative illustration of preferred embodiment below carry out diagram and
Explain, these embodiments, be only used as example referring to the drawings and be given.
Accompanying drawing explanation
Fig. 1 is the hydraulic schematic diagram of the present invention.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
As it is shown in figure 1, the present invention includes that hydraulic pump group 1, system pressure control block 2, binder cylinder control valve
3,3 binder cylinders 4 of block, main hydraulic cylinder control valve block 5 and a pair main hydraulic cylinder 6, hydraulic pump group 1 defeated
Go out end and control block 2, binder cylinder control valve block 3 input, main hydraulic cylinder control valve block with system pressure respectively
5 inputs are connected, and system pressure controls block 2 outfan and leads to fuel tank 9, binder cylinder control valve block 3 outfan
It is connected with 3 binder cylinder 4 back cavities respectively, main hydraulic cylinder control valve block 5 outfan and a pair main hydraulic cylinder 6
Back cavity is connected, and a pair main hydraulic cylinder piston rod 61 termination is connected with on the upside of knife rest 7 respectively.
System pressure controls block 2 and includes two solenoid directional control valves 21, overflow valve 22 and inserted valve 23, pressure
The system oil pressure that table 24 is set up for display system Stress control block 2.
Binder cylinder control valve block 3 includes the 2/2-way hydraulicchange-over valve 31 of working connection 8, and binder cylinder control
The check valve 321 of valve block oil circuit control 32 processed and choke valve 322, main hydraulic cylinder control valve block 5 includes two
Three-way hydraulic reversal valve 51, and one-way throttle valve 521 He of main hydraulic cylinder control valve block oil circuit control 52
Two four-way electromagnetic reversing valves 522.
Hydraulic pump group outfan 11 by output pipe 8 respectively with 2/2-way hydraulicchange-over valve the first end 311
(P1), check valve 321 be connected, check valve 321 is surged with 2/2-way respectively by choke valve 322 and changes
It is connected to valve hydraulic control end 313 (C1), 2/2-way hydraulicchange-over valve hydraulic control end 313 (C1), 2/2-way
Hydraulicchange-over valve the second end 312 (A1) is connected with 3 binder cylinder 4 back cavities respectively.
Hydraulic pump group outfan 11 by output pipe 8 the most respectively with two-bit triplet hydraulicchange-over valve the first end
511 (P2), two four-way electromagnetic reversing valves the first end 522-1 (P3) are connected, two four-way electromagnetic reversing valves
Second end 522-2 (B3) is by one-way throttle valve 521 and two-bit triplet hydraulicchange-over valve hydraulic control end 514 (C2)
Being connected, two-bit triplet hydraulicchange-over valve the 3rd end 513 (B2) is connected with a pair main hydraulic cylinder 6 back cavity respectively,
Two-bit triplet hydraulicchange-over valve the second end 512 (A2) leads to fuel tank 9.For the ease of maintenance, a pair main hydraulic pressure
Cylinder 6 back cavity is connected by stop valve 10.
The work process of the present invention is as follows:
1, idle running；System pressure controls two solenoid directional control valve 21 dead electricity of block 2, and overflow valve 22 is in
Unloading condition, the hydraulic oil that hydraulic pump group outfan 11 pumps out flows back to fuel tank 9, system through inserted valve 23
Pressure gauge 24 pointer back to zero.
2, shear；Two solenoid directional control valves 21 of system pressure control block 2 obtain electric system and build pressure, hydraulic pump
The hydraulic oil that group outfan 11 pumps out divides two-way, and a road is through 2/2-way hydraulicchange-over valve the first end 311
(P1), 2/2-way hydraulicchange-over valve the second end 312 (A1) flow to 3 binder cylinder 4 back cavities, 3
Binder cylinder plug 41 is descending to be pushed down by shear material.Another road flows to two-bit triplet hydraulicchange-over valve the first end 511
(P2), hydraulic oil also passes sequentially through two four-way electromagnetic commutations of main hydraulic cylinder control valve block oil circuit control 52
Valve 522, one-way throttle valve 521 lead to two-bit triplet hydraulicchange-over valve hydraulic control end 514 (C2), along with system
The raising of oil pressure, when oil pressure reaches the oil pressure that two-bit triplet hydraulicchange-over valve 51 is set up, two-bit triplet liquid
Dynamic reversal valve hydraulic control end 514 (C2) is opened, and hydraulic oil is through two-bit triplet hydraulicchange-over valve the 3rd end 513
(B2) flowing to a pair main hydraulic cylinder 6, knife rest 7 is descending, and blade starts to shear plate；Deep along with shear
Entering, system oil pressure raises further, the unlatching oil pressure that arrival 2/2-way hydraulicchange-over valve 31 sets, and two
Position two leads to hydraulicchange-over valve 31 and commutates, and has cut off the back cavity oil circuit of 3 binder cylinders 4, and binder cylinder 4 is in
Packing state；Shearing proceeds, and system oil pressure persistently raises, but the oil pressure of binder cylinder 4 no longer raises.
What 2/2-way hydraulicchange-over valve 31 of the present invention set opens oil pressure more than two-bit triplet hydraulicchange-over valve 51
The unlatching oil pressure set.
3, backhaul；After shearing terminates, system pressure controls two solenoid directional control valve 21 dead electricity off-loads of block 2,
The hydraulic oil that hydraulic pump group outfan 11 pumps out flows back to fuel tank 9 through inserted valve 23, and overflow valve 22 is in and unloads
Lotus state.2/2-way hydraulicchange-over valve 31, two-bit triplet hydraulicchange-over valve 51 are in the effect of valve core spring
Under return to initial position, 3 binder cylinder 4 back cavities lead to fuel tank 9, and binder cylinder plug 41 is at its back-moving spring 42
Effect under reset.A pair main hydraulic cylinder 6 back cavity fluid is surged by the two-bit triplet communicated with fuel tank 9 and changes
More greatly can be by adjusting one-way throttle valve to valve the second end 512 (A2) off-load, oil return, such as hydraulic shock
521 damping hole size adjustment unloading rate, and return to initiate by a pair kicker cylinder (being not drawn in Fig. 1)
Position.
In addition to the implementation, the present invention can also have other embodiments, all employing equivalents or equivalence
The technical scheme that conversion is formed, all falls within the protection domain of application claims.
Claims (3)
1. a hydraulic system of cutting machine, controls block, binder cylinder control valve including hydraulic pump group, system pressure
Block, several binder cylinder, main hydraulic cylinder control valve block and a pair main hydraulic cylinder, it is characterised in that hydraulic pump group
Outfan respectively with system pressure control block, binder cylinder control valve block input, main hydraulic cylinder control valve block
Input be connected, system pressure control block outfan lead to fuel tank, binder cylinder control valve block outfan respectively with number
Individual binder cylinder back cavity is connected, and main hydraulic cylinder control valve block outfan and a pair main hydraulic cylinder back cavity are connected, a pair
Main hydraulic cylinder piston rod end is connected with on the upside of knife rest respectively；Described binder cylinder control valve block includes working connection
2/2-way hydraulicchange-over valve, and the check valve of binder cylinder control valve block oil circuit control and choke valve, hydraulic pressure
Pump group outfan is connected with 2/2-way hydraulicchange-over valve the first end, check valve not-go-end respectively, check valve go side
It is connected with 2/2-way hydraulicchange-over valve hydraulic control end respectively by choke valve, 2/2-way hydraulicchange-over valve hydraulic control
End, 2/2-way hydraulicchange-over valve the second end are connected with several binder cylinder back cavities respectively；Described main hydraulic cylinder control
Valve block processed includes two-bit triplet hydraulicchange-over valve, and the one-way throttle of main hydraulic cylinder control valve block oil circuit control
Valve and two four-way electromagnetic reversing valves, hydraulic pump group outfan respectively with two-bit triplet hydraulicchange-over valve the first end,
Two four-way electromagnetic reversing valve the first ends are connected, and two four-way electromagnetic reversing valve the second ends pass through one-way throttle valve
Be connected with two-bit triplet hydraulicchange-over valve hydraulic control end, two-bit triplet hydraulicchange-over valve the 3rd end respectively with a pair master
Hydraulic cylinder back cavity is connected, and two-bit triplet hydraulicchange-over valve the second end leads to fuel tank.
2. hydraulic system of cutting machine as claimed in claim 1, it is characterised in that described system pressure controls
Block includes two solenoid directional control valves, overflow valve and plug-in mounting valve member.
3. hydraulic system of cutting machine as claimed in claim 1, it is characterised in that a pair main hydraulic cylinder back cavity
It is connected by stop valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410415397.0A CN104191027B (en) | 2014-08-22 | 2014-08-22 | Hydraulic system of cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410415397.0A CN104191027B (en) | 2014-08-22 | 2014-08-22 | Hydraulic system of cutting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104191027A CN104191027A (en) | 2014-12-10 |
| CN104191027B true CN104191027B (en) | 2016-10-12 |
Family
ID=52076474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410415397.0A Active CN104191027B (en) | 2014-08-22 | 2014-08-22 | Hydraulic system of cutting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104191027B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108678689A (en) * | 2018-04-23 | 2018-10-19 | 廖恒伟 | A kind of oil-well rig hydraulic hoisting machine host |
| CN109014364B (en) * | 2018-09-29 | 2019-12-20 | 安徽东海机床制造有限公司 | Hydraulic control plate shearing process of plate shearing machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| UA80276C2 (en) * | 2002-05-24 | 2007-09-10 | Metso Lindemann Gmbh | Appliance for hydraulic control in hydraulic machine intended for control of operation of machine tool such as press for processing any material (variants) |
| CN102009220A (en) * | 2010-07-12 | 2011-04-13 | 周建波 | Hydraulic transmission device for plate shearing machine |
| CN103658808A (en) * | 2012-09-10 | 2014-03-26 | 黄石华信机械设备有限公司 | Automatic detection hydraulic adjusting device of shear angle of plate shearing machine |
| CN203556939U (en) * | 2013-11-26 | 2014-04-23 | 山东泰丰液压股份有限公司 | Brake type plate shearing machine hydraulic control device with safety protection device |
| CN203992579U (en) * | 2014-08-22 | 2014-12-10 | 沃得数控机床（江苏）有限公司 | Hydraulic system of cutting machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3816893B2 (en) * | 2003-04-17 | 2006-08-30 | 日立建機株式会社 | Hydraulic drive |
-
2014
- 2014-08-22 CN CN201410415397.0A patent/CN104191027B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| UA80276C2 (en) * | 2002-05-24 | 2007-09-10 | Metso Lindemann Gmbh | Appliance for hydraulic control in hydraulic machine intended for control of operation of machine tool such as press for processing any material (variants) |
| 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 |
| CN103658808A (en) * | 2012-09-10 | 2014-03-26 | 黄石华信机械设备有限公司 | Automatic detection hydraulic adjusting device of shear angle of plate shearing machine |
| CN203556939U (en) * | 2013-11-26 | 2014-04-23 | 山东泰丰液压股份有限公司 | Brake type plate shearing machine hydraulic control device with safety protection device |
| CN203992579U (en) * | 2014-08-22 | 2014-12-10 | 沃得数控机床（江苏）有限公司 | Hydraulic system of cutting machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104191027A (en) | 2014-12-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103807239B (en) | A kind of shear plate synchronous control hydraulic system based on Dual-output shaft motor | |
| CN202673874U (en) | Constant-pressure variable control system of load sensitive hydraulic pump | |
| CN103899586B (en) | A kind of super sized type guillotine shear synchronization hydraulic system based on flow divider-combiner | |
| CN204553382U (en) | A kind of Novel washing sweeps vehicle hydraulic system | |
| CN203992579U (en) | Hydraulic system of cutting machine | |
| CN104191027B (en) | Hydraulic system of cutting machine | |
| CN205013408U (en) | Differential hydraulic control device is entirely cut to steel scrap | |
| CN103586527A (en) | Valve type plate shearer hydraulic control system with safety protection device | |
| CN204664017U (en) | Synchronous compression pressurize continued compensation and relief circuit | |
| CN203556939U (en) | Brake type plate shearing machine hydraulic control device with safety protection device | |
| CN109306976B (en) | Load sensitive control system | |
| CN204572604U (en) | Revolution combined control valve, rotary system and hoist | |
| CN103644338B (en) | Pressure regulator valve and there is the equilibrium valve assembly of this pressure regulator valve | |
| CN103334971A (en) | Hydraulic control system for electric-hydraulic proportional numerical control bending machine | |
| CN203836279U (en) | Built-in pressure reducing valve | |
| CN201269231Y (en) | Hydraulic system recirculation loop of bending machine | |
| CN104454707A (en) | Simple hydraulic system for bending machine | |
| CN201799552U (en) | Hydraulic system for proportional overflow pressure relief for hydraulic forging press | |
| CN208503126U (en) | A kind of repairing switching valve for enclosed and open system switching | |
| CN204175686U (en) | A kind of bender hydraulic system | |
| CN203463384U (en) | Pressure-maintaining loop and hydraulic mechanical equipment comprising pressure-maintaining loop | |
| CN203717500U (en) | Plate shearing synchronous hydraulic control system based on double-output-shaft motor | |
| CN105545878A (en) | Transient-pressure oil supply system for multi-way valve test stand | |
| CN204572608U (en) | A kind of numerical control right angle cut-off machine series connection synchronization hydraulic system | |
| CN104309161A (en) | Multi-cylinder piecewise pressure regulation system for hydraulic press |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |