CN209195856U - A kind of servo-control system of press machine - Google Patents
A kind of servo-control system of press machine Download PDFInfo
- Publication number
- CN209195856U CN209195856U CN201821951949.XU CN201821951949U CN209195856U CN 209195856 U CN209195856 U CN 209195856U CN 201821951949 U CN201821951949 U CN 201821951949U CN 209195856 U CN209195856 U CN 209195856U
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- oil
- solenoid valve
- servo
- pressure
- oil circuit
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Abstract
The utility model discloses a kind of servo-control systems of press machine, including fuel tank, servo pump group, oil supply pipe, oil returning tube, overflow valve, pressure unit and double differential circuit, servo pump group is set in fuel tank, oil supply pipe is connect with servo pump group, oil returning tube is connect with fuel tank, the oil inlet of overflow valve is connected to the oil outlet of servo pump group, the oil outlet of overflow valve is connected to oil returning tube, pressure unit includes pressure cylinder, pressure solenoid valve and bidirectional hydraulic lock, the second oil circuit that pressure cylinder is connected with the first oil circuit being connected to pressure cylinder rodless cavity and is connected to pressure cylinder rod chamber, first oil circuit and the second oil circuit are connected to by pressure solenoid valve with oil supply pipe and oil returning tube, bidirectional hydraulic lock is provided between first oil circuit and the second oil circuit.The utility model structure is simple, can reduce energy consumption, the pressure source that output is stable, and output oil liquid flow pressure is variable, and can work efficiency is high.
Description
Technical field
The utility model relates to a kind of servo-control systems of press machine.
Background technique
For the hydraulic system of transmission using constant displacement pump or variable pump as power source, driving motor is all common three
Phase AC induction motor, existing hydraulic system pipeline design do not optimize, and system heat generation and noise are big, compression speed and backhaul
Speed is non-adjustable, can not be suitable for compression packing large size sponge matress, natural feather bedding and clothing, space wadding quilt, the fluffy article such as back cushion, together
When mattress can not also be crimped so that in outer surface upper plastic film can be covered in order to moisture-proof, it is dust-proof, convenient for transporting safely, save
Storage and transportation cost.
Utility model content
The utility model is directed to above-mentioned problems of the prior art, provides that a kind of structure is simple, can reduce energy consumption, is defeated
Stable pressure source out, output oil liquid flow pressure is variable, and can the servo-control system that work efficiency is high.
A kind of servo-control system of press machine, including fuel tank, servo pump group, oil supply pipe, oil returning tube, overflow valve,
Pressure unit, double differential circuit and curling unit, the gear pump of servo pump group are set in fuel tank, oil supply pipe and servo pump group
Connection, oil returning tube connect with fuel tank, and the oil inlet of overflow valve is connected to the oil outlet of servo pump group, the oil outlet of overflow valve and
Oil returning tube connection, pressure unit includes pressure cylinder, pressure solenoid valve and bidirectional hydraulic lock, pressure cylinder be connected with pressure cylinder without
First oil circuit of rod cavity connection and the second oil circuit being connected to pressure cylinder rod chamber, the first oil circuit and the second oil circuit pass through pressure electricity
Magnet valve is connected to oil supply pipe and oil returning tube, is provided with bidirectional hydraulic lock between the first oil circuit and the second oil circuit.
Further, the double differential circuit includes the first differential oil line and the first solenoid valve, first differential oil line one end
It is connected to the fuel tank, the other end passes through the first solenoid valve and first oil communication.
Further, the double differential circuit includes the second differential oil line, second solenoid valve and third solenoid valve, third electricity
Magnet valve is set on second oil circuit between pressure cylinder rod chamber and bidirectional hydraulic lock, and second solenoid valve one end is connected to
On the second oil circuit between three solenoid valves and pressure cylinder rod chamber, the other end by second solenoid valve is connected to pressure cylinder, and whether there is or not bars
On the first oil circuit between chamber and bidirectional hydraulic lock.
Further, the pressure solenoid valve is three position four-way electromagnetic valve, the first solenoid valve, second solenoid valve, third electricity
Magnet valve is two-position two-way solenoid valve, wherein second solenoid valve is normally close valve.
Further, the pressure cylinder is composed in parallel by several pressure cylinders.
Further, the oil outlet of the servo pump group is provided with pressure measuring tie-in and pressure gauge.
Further, the curling unit includes curling cylinder, curling solenoid valve, bidirectional hydraulic lock and one-way throttle valve, volume
The 4th oil circuit that curved-cylinder is connected with the third oil circuit being connected to curling cylinder rodless cavity and is connected to curling cylinder rod chamber, third oil circuit
It is connected to by curling solenoid valve with oil supply pipe and oil returning tube with the 4th oil circuit, is provided with list on third oil circuit and the 4th oil circuit
To throttle valve, bidirectional hydraulic lock is provided between third oil circuit and the 4th oil circuit.
Further, the curling solenoid valve is three position four-way electromagnetic valve.
Further, cooling device and filter device are provided on the oil returning tube.
Further, the servo motor in the servo pump group and gear pump pass through flanged joint, are mounted between flange
On fuel tank side board.
The utility model has the beneficial effects that 1) pass through flanged joint between servo motor and gear pump, installed between flange
It on fuel tank side board, greatly reduces whole system and is taken up space, while gear pump is directly embedded in inside fuel tank, such gear
The noise of pump can absorb greatly in fuel tank internal.2) oil cylinder decline process is controlled using differential circuit, is existed in this way
Compression speed is maximum when load is lower than certain value.3) balanced valve is increased in oil pressure cylinder rod chamber, so that oil pressure cylinder
There is certain load during decline, in this way it is prevented that oil pressure cylinder negative pressure occurs during decline；Oil pressure cylinder without
Rod cavity increases load releasing valve, so that oil when oil pressure cylinder backhaul can also reduce in this way backhaul load in line fuel tank, reduces
Energy consumption.4) according to the work characteristics of servo motor, the standby servo motor of hydraulic system can be with extremely low revolving speed
Work.Revolving speed can be promoted rapidly when needing work simultaneously.
Detailed description of the invention
Fig. 1 is the schematic diagram of distributed turbine generation energy source station port fuel system；
Fig. 2 is Fig. 1 enlarged drawing；
In figure: 1- fuel tank, 2- servo pump group, 3- overflow valve, 4- oil supply pipe, 5- oil returning tube, 6- pressure measuring tie-in, 7-
Pressure gauge, 8- cooling device, 9- filter device, 10- pressure cylinder, 11- pressure solenoid valve, 12- bidirectional hydraulic lock, the first oil of 13-
Road, the second oil circuit of 14-, the first differential oil line of 15-, the first solenoid valve of 16-, the second differential oil line of 17-, 18- second solenoid valve,
19- third solenoid valve, 20- crimp cylinder, and 21- crimps solenoid valve, 22- bidirectional hydraulic lock, 23- one-way throttle valve, 24- third oil
Road, the 4th oil circuit of 25-.
Specific embodiment
In order to which the objects, technical solutions and advantages of the utility model patent are more clearly understood, below in conjunction with attached drawing and
The utility model patent is further elaborated in embodiment.
A kind of servo-control system of press machine as shown in Figure 1 and Figure 2, including fuel tank 1, servo pump group 2, oil supply pipe 4,
Oil returning tube 5, overflow valve 3, pressure unit, double differential circuit and curling unit, servo pump group 2 are set in fuel tank 1, servopump
The oil outlet of group 2 is provided with pressure measuring tie-in 6 and pressure gauge 7, and the oil inlet of overflow valve 3 is connected to the oil outlet of servo pump group 2, overflows
The oil outlet of stream valve 3 is connected to oil returning tube 5, and cooling device 8 and filter device 9, oil returning tube 5 are provided on oil returning tube 5
It is connect with fuel tank 1.
Servo motor pump group mainly contains servo motor, bell jar, shaft coupling, crescent gear pump, pressure sensor, encoder
Line and servo-driver etc..Servo motor is connected by bell jar shaft coupling with crescent gear pump, and encoder line is electric by servo
Machine revolving speed is conveyed to servo-driver, and the pressure of fuel pump outlet is conveyed to servo controller, such servo motor by pressure measuring tie-in 6
An internal closed loop is just constituted with servo-driver.Servo motor and gear pump in servo pump group 2 pass through flanged joint, method
It is mounted between orchid on 1 side plate of fuel tank, greatly reduces whole system and taken up space, while gear pump is directly embedded in fuel tank 1
The noise of the inside, such gear pump can be in fuel tank 1 absorbed inside a big chunk.Cooling device 8 is air-cooled type heat exchanger,
Filter device 9 is filter.
In the present embodiment, pressure unit includes several pressure cylinders 10, pressure solenoid valve 11 and bidirectional hydraulic lock 12, several
For being connected with the first oil circuit 13 being connected to pressure cylinder rodless cavity after a 10 parallel connection of pressure cylinder and being connected to pressure cylinder rod chamber
Two oil circuits 14, the first oil circuit 13 and the second oil circuit 14 are connected to by pressure solenoid valve 11 with oil supply pipe 4 and oil returning tube 5, the
Bidirectional hydraulic lock 12 is provided between one oil circuit 13 and the second oil circuit 14.Pressure solenoid valve 11 is three position four-way electromagnetic valve.
In the present embodiment, double differential circuit include the first differential oil line 15, the first solenoid valve 16, the second differential oil line 17,
Second solenoid valve 18 and third solenoid valve 19 (balanced valve).First differential oil line, 15 one end is connected to fuel tank 1, and the other end passes through
First solenoid valve 16 is connected to the first oil circuit 13.Third solenoid valve 19 is set between pressure cylinder rod chamber and bidirectional hydraulic lock 12
The second oil circuit 14 on, 18 one end of second solenoid valve is connected to the second oil circuit between third solenoid valve 19 and pressure cylinder rod chamber
On 14, the other end, which is connected to pressure cylinder by second solenoid valve 18, the first oil circuit between rodless cavity and bidirectional hydraulic lock 12
On 13.First solenoid valve 16, second solenoid valve 18 are two-position two-way solenoid valve, and 19 3 solenoid valve of third solenoid valve is bi-bit bi-pass
Solenoid valve, wherein second solenoid valve 18 is normally close valve.
In the present embodiment, curling unit includes curling cylinder 20, curling solenoid valve 21, bidirectional hydraulic lock 22 and one-way throttle
Valve 23, curling cylinder 20 be connected with the third oil circuit 24 that is connected to of curling 20 rodless cavity of cylinder and with crimp that cylinder rod chamber is connected to the
Four oil circuits 25, third oil circuit 24 and the 4th oil circuit 25 pass through curling solenoid valve 21 (bent solenoid valve is three position four-way electromagnetic valve) and confession
Oil-piping 4 is connected to oil returning tube 5, and one-way throttle valve 23, third oil circuit 24 are provided on third oil circuit 24 and the 4th oil circuit 25
And the 4th be provided with bidirectional hydraulic lock 22 between oil circuit 25.
Utility model works principle: the F.F. of pressure unit part and work into: the first step, servo pump group 2 are started to work,
Hydraulic oil is pumped into oil supply pipe 4 to work for system and is used, pressure solenoid valve 11 obtains electric, P, A mouth company of pressure solenoid valve 11
It is logical, B, T mouthful connections, right working position (right working position is a check valve) work of the first solenoid valve 16, second solenoid valve 18 it is electric lead to, the
Right working position (right working position is a check valve) work of three solenoid valves 19, at this point, because pressure cylinder rodless cavity internal pressure is less than outer
Portion's pressure, the first differential oil line 15 is directly by the right working position of the first solenoid valve 16 by the hydraulic oil and the first oil circuit in fuel tank 1
It is directly inputted in pressure cylinder rodless cavity after 13 connections.Meanwhile first oil circuit 13 be connected to P, A of pressure solenoid valve 11 mouth by system
In hydraulic oil enter in pressure cylinder rodless cavity, meanwhile, because pressure cylinder rod chamber has bar by second solenoid valve 18 and pressure
Chamber connection, the hydraulic oil of pressure cylinder rod chamber directly flow back in pressure cylinder rodless cavity, 10 F.F. of pressure cylinder；Second step, the second electricity
18 power loss of magnet valve is closed, and pressure cylinder rod chamber is not connected to pressure rod chamber, and third solenoid valve 19 obtains electric (third solenoid valve 19
The work of left station), at this point, pressure cylinder rodless cavity internal pressure is greater than external pressure, the first differential oil line 15 can not be by the
Hydraulic oil in fuel tank 1 is connected in input pressure cylinder rodless cavity by the right working position of one solenoid valve 16 with the first oil circuit 13, Zhi Nengtong
It crosses the first oil circuit 13 to be connected to the A of pressure solenoid valve 11 mouth by the hydraulic oil input pressure cylinder rodless cavity in system, pressure cylinder
Hydraulic oil in rod chamber passes through B, T mouth oil return box 1 of the left station of third electromagnetism, the second oil circuit 14, pressure solenoid valve 11,
10 work of pressure cylinder into.
The pressure maintaining of pressure unit part: 11 power loss of pressure solenoid valve is in interposition, and P mouthfuls obstructed, A, B, T mouthfuls of connections, pressure
Power cylinder 10 passes through 12 pressure maintaining of bidirectional hydraulic lock.
The rewind of pressure unit part and backhaul: pressure solenoid valve 11 obtains electric, P, B mouth connection of pressure solenoid valve 11, A, T
Mouth connection, the first solenoid valve 16 obtain electric (left station work), 19 power loss of third solenoid valve (right working position work), the first step, and second
Oil circuit 14 is connected to P, B of pressure solenoid valve 11 mouth, by the right working position of third solenoid valve 19 by system hydraulic oil input pressure
The hydraulic oil of cylinder rod chamber, pressure cylinder rodless cavity is directly inputted by the left station of the first solenoid valve 16 (serving as unloading valve herein)
Fuel tank 1 carries out release, while the hydraulic oil of pressure cylinder rodless cavity passes through the first oil circuit 13, A, T mouth defeated time of pressure solenoid valve 11
Fuel tank 1,10 rewind of pressure cylinder.
The utility model declines Fast Process in pressure cylinder 10 and uses Differential Control, in this way in load lower than certain value
When compression speed it is maximum.Balanced valve is increased in pressure cylinder rod chamber, so that there is certain bear during the decline of pressure cylinder 10
It carries, in this way it is prevented that pressure cylinder 10 negative pressure occurs during decline.Pressure cylinder rodless cavity increases load releasing valve, so that pressure
Oil when 10 backhaul of cylinder can be also reduced in this way backhaul load, be reduced energy consumption in line fuel tank 1.The utility model reaches
It is following the utility model has the advantages that (1) entire hydraulic servo dynamical system sound level drops to 75dB from 85dB before.(2) identical
Under conditions of producing production capacity, servo power system is than 30% or more traditional hydraulic system energy conservation.(3) under identical operating condition, phase
With environment temperature, servo power system should few 30% than traditional hydraulic system temperature rise.(4) identical mattress is compressed, is passed
The hydraulic system of system needs 25S or so, and the servo power system entire action cycle is in 18S or so.
Crimp unit part working principle: the first step, curling solenoid valve 21 it is electric, P, B mouthful, A, T mouthful are connected to, and third is oily
Road 24 is connected to P, B mouth of curling solenoid valve 21, by bidirectional hydraulic lock 22,23 fuel feeding of one-way throttle valve in curling cylinder without bar
Chamber, curling cylinder rod chamber pass through the 4th oil circuit 25 and one-way throttle valve 23, bidirectional hydraulic lock 12, A, T mouth for crimping solenoid valve 21
Fuel tank 1 is flowed back to, curling cylinder 20 stretches out.Second step crimps 21 power loss of solenoid valve, is in interposition, P mouthfuls obstructed, A, B, T mouthfuls of companies
Logical, curling cylinder 20 passes through 12 pressure maintaining of bidirectional hydraulic lock.Third step, curling solenoid valve 21 must be electric, and P, A mouthfuls, B, T mouthfuls of connections, the 4th
Oil circuit 25 with curling cylinder 21 P, A mouth be connected to, by bidirectional hydraulic lock 22,23 fuel feeding of one-way throttle valve in crimp cylinder rod chamber,
It crimps cylinder rod chamber and passes through third oil circuit 24 and one-way throttle valve 23, bidirectional hydraulic lock 22, B, T mouth stream for crimping solenoid valve 21
Oil return box 1, curling cylinder 20 retract.
Entire hydraulic system is by optimization oil circuit and noise-reducing design, so that the performance of entire hydraulic system has obtained greatly
Promotion.Servo hydraulic power system output pressure is 0-40 tons adjustable, and compression speed and opening speed are adjustable, can be used for
Compression packing large size sponge matress, natural feather bedding and clothing, space wadding quilt, the fluffy article such as back cushion.It is crimped after mattress simultaneously in outer surface
Air defence tide can be packed by putting on plastic film, dust-proof, so that the storage and transport of mattress are more felt at ease.Also raw for mattress simultaneously
Business men and dealer save storage and transportation cost.
Embodiment described above and other legends only express a kind of embodiment of the utility model, only indicate that
Rather than limitation the utility model.For those of ordinary skill in the art, before not departing from the utility model design
It puts, various modifications and improvements can be made.Therefore, the protection scope of the utility model should be determined by the appended claims.
Claims (10)
1. a kind of servo-control system of press machine, it is characterised in that: including fuel tank, servo pump group, oil supply pipe, oil return pipe
Road, overflow valve, pressure unit, double differential circuit and curling unit, the gear pump of servo pump group are set in fuel tank, oil supply pipe
It is connect with servo pump group, oil returning tube is connect with fuel tank, and the oil inlet of overflow valve is connected to the oil outlet of servo pump group, overflow valve
Oil outlet be connected to oil returning tube, pressure unit includes pressure cylinder, pressure solenoid valve and bidirectional hydraulic lock, and pressure cylinder is connected with
The first oil circuit being connected to pressure cylinder rodless cavity and the second oil circuit being connected to pressure cylinder rod chamber, the first oil circuit and the second oil circuit
It is connected to by pressure solenoid valve with oil supply pipe and oil returning tube, is provided with bidirectional hydraulic between the first oil circuit and the second oil circuit
Lock.
2. a kind of servo-control system of press machine according to claim 1, it is characterised in that: the double differential circuit packet
The first differential oil line and the first solenoid valve are included, first differential oil line one end is connected to the fuel tank, and the other end passes through the first electromagnetism
Valve and first oil communication.
3. a kind of servo-control system of press machine according to claim 2, it is characterised in that: the double differential circuit packet
The second differential oil line, second solenoid valve and third solenoid valve are included, third solenoid valve is set to pressure cylinder rod chamber and bidirectional hydraulic
On second oil circuit between lock, second solenoid valve one end is connected to second between third solenoid valve and pressure cylinder rod chamber
On oil circuit, the other end is connected on the first oil circuit that pressure cylinder has between rodless cavity and bidirectional hydraulic lock by second solenoid valve.
4. a kind of servo-control system of press machine according to claim 3, it is characterised in that: the pressure solenoid valve is
Three position four-way electromagnetic valve, the first solenoid valve, second solenoid valve, third solenoid valve are two-position two-way solenoid valve, wherein the second electromagnetism
Valve is normally close valve.
5. a kind of servo-control system of press machine according to claim 1, it is characterised in that: the pressure cylinder is by several
A pressure cylinder composes in parallel.
6. a kind of servo-control system of press machine according to claim 1, it is characterised in that: the servo pump group goes out
Hydraulic fluid port is provided with pressure measuring tie-in and pressure gauge.
7. a kind of servo-control system of press machine according to claim 1, it is characterised in that: the curling unit includes
Cylinder, curling solenoid valve, bidirectional hydraulic lock and one-way throttle valve are crimped, curling cylinder is connected with the third being connected to curling cylinder rodless cavity
Oil circuit and the 4th oil circuit being connected to curling cylinder rod chamber, third oil circuit and the 4th oil circuit pass through curling solenoid valve and oil supply pipe
It is connected to oil returning tube, one-way throttle valve is provided on third oil circuit and the 4th oil circuit, is set between third oil circuit and the 4th oil circuit
It is equipped with bidirectional hydraulic lock.
8. a kind of servo-control system of press machine according to claim 7, it is characterised in that: the curling solenoid valve is
Three position four-way electromagnetic valve.
9. a kind of servo-control system of press machine according to claim 1, it is characterised in that: set on the oil returning tube
It is equipped with cooling device and filter device.
10. a kind of servo-control system of press machine according to claim 1, it is characterised in that: in the servo pump group
Servo motor and gear pump by flanged joint, be mounted on fuel tank side board between flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821951949.XU CN209195856U (en) | 2018-11-26 | 2018-11-26 | A kind of servo-control system of press machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821951949.XU CN209195856U (en) | 2018-11-26 | 2018-11-26 | A kind of servo-control system of press machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209195856U true CN209195856U (en) | 2019-08-02 |
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ID=67425921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821951949.XU Active CN209195856U (en) | 2018-11-26 | 2018-11-26 | A kind of servo-control system of press machine |
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| Country | Link |
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| CN (1) | CN209195856U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113550942A (en) * | 2021-07-15 | 2021-10-26 | 南通睿基自动化技术有限公司 | Electrohydraulic control hydraulic vibration cylinder of servo pump |
-
2018
- 2018-11-26 CN CN201821951949.XU patent/CN209195856U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113550942A (en) * | 2021-07-15 | 2021-10-26 | 南通睿基自动化技术有限公司 | Electrohydraulic control hydraulic vibration cylinder of servo pump |
| CN113550942B (en) * | 2021-07-15 | 2024-03-29 | 南通睿基自动化技术有限公司 | Electrohydraulic control hydraulic vibration cylinder of servo pump |
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