CN207513965U - A kind of oil channel structures of oil cylinder - Google Patents
A kind of oil channel structures of oil cylinder Download PDFInfo
- Publication number
- CN207513965U CN207513965U CN201721287806.9U CN201721287806U CN207513965U CN 207513965 U CN207513965 U CN 207513965U CN 201721287806 U CN201721287806 U CN 201721287806U CN 207513965 U CN207513965 U CN 207513965U
- Authority
- CN
- China
- Prior art keywords
- oil
- drain line
- pipeline
- valve
- channel structures
- 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)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of oil channel structures of core pulling oil cylinder, belong to hydraulic circuit system.The oil channel structures, including oil inlet pipe and oil outlet pipe, the oil inlet and oil outlet of liquid valve are connected on the oil inlet pipe and oil outlet pipe respectively, the first actuator port and the second actuator port of liquid valve connect oil cylinder by the first pipeline and the second pipeline respectively, first pipeline and the second pipeline connect oil outlet pipe by the first drain line and the second drain line respectively, first drain line and the second drain line end and for all the way, and relief valve is provided with, check valve is set respectively on first drain line and the second drain line.When needing replacing mold, stop oil circuit work, relief valve connects drain line, the pressure oil being stored in pipeline and oil cylinder returns to oil outlet pipe through drain line and flows back to system fuel tank, thus lay down the residual pressure in pipeline and oil cylinder, the waste of hydraulic oil and the pollution to environment are reduced, improves the safety of operation employee.
Description
Technical field
The utility model is related to hydraulic circuit systems, and in particular to a kind of oil channel structures of core pulling oil cylinder.
Background technology
Injection is one of most important method of producing of plastic products, with the continuous development of society, for injection moulding process
Technical difficulty and the requirement of the complexity of moulds of industrial equipment are higher and higher, and current plastic mould almost uses loose core of oil cylinder.Tradition
Injection molding machine core pulling (also known as：Neutron) hydraulic circuit be position hydraulic fluid port totally-enclosed (O-shaped) in one direction valve control mold on
Core pulling oil cylinder, when being not carried out core pulling action, valve port is totally-enclosed.
Existing mold neutron oil channel structures, as shown in Figure 1, including oil inlet pipe 11 and oil outlet pipe 12, are respectively communicated with
The oil inlet and oil outlet of core pulling valve 13, two actuator ports of core pulling valve 13 are connected respectively by the first pipeline and the second pipeline
The rodless cavity and rod chamber of core pulling oil cylinder 14, the first pipeline and the second pipeline are mounted on check valve 15 and pressure gauge 16.It is above-mentioned
The operation principle of oil channel structures is：Oil is inputted through oil inlet pipe 11, and core pulling valve 13 regulates and controls, and core pulling oil cylinder 14 works, check valve 15
Pressurize, most afterwards through 12 oil return of oil outlet pipe, pressure gauge 16 monitors pressure in oil circuit in real time.
Above device, since always there are certain pressure oils in core pulling working tubing, is being torn open when more mold exchange
During charge of oil pipe, the hydraulic oil for having pressure is easy to be splashed in air, leads to oil contamination, can be to human body, especially when serious
It is that operating personnel damage, there are security risks.
Patent document CN 102873849A disclose a kind of hydraulic core_pulling circuit with decompression function, including core pulling oil cylinder,
Core pulling valve, relief valve and is formed by connecting by pipeline；The oil inlet end of system is connected by pipeline with the oil inlet of core pulling valve, core pulling
First actuator port of valve is connected with core pulling oil cylinder rodless cavity, the second actuator port and the core pulling cylinder rod chamber phase of core pulling valve
Even, the oil return opening of core pulling valve is connected with system oil return end, realizes core pulling action；Two relief valves of same size model, respectively
It is connected with the first actuator port, the second actuator port of core pulling valve, first carries out pressure release before mold oil pipe is dismounted, can effectively keep away
Exempt to be splashed in air due to the pressure oil in core pulling oil pipe, caused by oil contamination and improve using machine safety
Energy.
Utility model content
The purpose of this utility model is to provide a kind of oil path in oil cylinder structure with decompression function, to overcome existing pumping
Without pressure relief device in the pipeline of core oil cylinder, lead to problems such as the danger coefficient when dismantling oil pipe big.
To achieve the above object, the utility model adopts the following technical solution：
A kind of oil channel structures of oil cylinder including oil inlet pipe and oil outlet pipe, divide on the oil inlet pipe and oil outlet pipe
Not Lian Jie liquid valve oil inlet and oil outlet, the first actuator port and the second actuator port of liquid valve respectively by the first pipeline and
Second pipeline connects oil cylinder, and the first pipeline and the second pipeline are connected fuel-displaced by the first drain line and the second drain line respectively
Pipeline, first drain line and the second drain line end and for all the way, and relief valve is provided with, first drain mast
The first check valve and the second check valve are set respectively on road and the second drain line.
In the utility model, oil cylinder is connected by pipeline and liquid valve with system fuel tank, specifically, the oil outlet end of system fuel tank
It is connected by oil inlet pipe with the oil inlet of liquid valve, the first actuator port of liquid valve passes through the first pipeline and oil cylinder rodless cavity phase
Even, the second actuator port of liquid valve is connected by the second pipeline with cylinder rod chamber, the oil return opening of liquid valve by oil outlet pipe and
The oil revolving end of system fuel tank is connected.Liquid valve regulation and control oil circuit flow direction, realizes core pulling action.
The improvement of the utility model is, adds the draining of connection oil outlet pipe respectively on the first pipeline and the second pipeline
Pipeline, relief valve is installed, in more mold exchange, core pulling oil circuit stops in drain line end and for all the way on the pipeline of merging
Relief valve is opened in work, the pressure oil being stored in pipeline and oil cylinder is flowed back to system fuel tank, residual pressure in removal cylinder pipe
Power ensures the safety when dismantling pipeline.
When multiple core pulling oil cylinders work together, the oil channel structures of each oil cylinder are connected in parallel on a total oil inlet pipe and go out
On oil pipe line, the first drain line of each oil cylinder and the second drain line end and to a total drain line are total at this
Drain line on relief valve is installed, while complete whole oil cylinders draining pressure release work.
The relief valve can be Electromagnetic Control, and when relief valve obtains electric, internal path, i.e. drain line is connected.
Preferably, third check valve and the 4th check valve are set respectively on first pipeline and the second pipeline.Unidirectionally
Valve ensures that fluid can only be flowed along oil inlet direction, and anti-backflow keeps hydraulic oil to be applied to the pressure of oil cylinder.
The liquid valve is solenoid valve, by Electromagnetic Control, adjusts direction, flow, speed and the other parameter of medium.It is described excellent
Choosing, the liquid valve are three position four-way electrohy-draulic valve.
Preferably, the oil channel structures include the valve seat of fixer valve, the oil outlet pipe, oil inlet pipe and draining
Pipeline is arranged on the threaded mounting hole of the inside of valve seat, surface setting installation check valve and relief valve.Valve seat is by the hydraulic pressure of dispersion
Oil circuit gathers together, more compact structure.
Preferably, setting connects the hose of oil cylinder on the valve seat.
The advantageous effect that the utility model has：
(1) the utility model is connected by adding drain line in the oil inlet pipe back segment and oil outlet pipe leading portion of connection oil cylinder
It is connected to oil outlet pipe back segment, drain line end and for all the way, and relief valve is provided with, when needing replacing mold, stop oil
Road works, and relief valve connects drain line, and the pressure oil being stored in pipeline and oil cylinder returns to oil outlet pipe stream through drain line
System fuel tank is returned, the residual pressure in pipeline and oil cylinder is thus laid down, reduces the waste of hydraulic oil and the dirt to environment
Dye improves the safety of operation employee.
(2) the utility model is simple and reliable for structure, easy to maintenance.
Description of the drawings
Fig. 1 is oil channel structures schematic diagram in the prior art.
Fig. 2 is oil channel structures schematic diagram in the utility model.
Fig. 3 is the structure diagram of valve seat in the utility model.
Fig. 4 is schematic diagram when valve seat is combined with oil cylinder in the utility model.
Specific embodiment
With reference to embodiment and attached drawing, the utility model is described in further detail, but following embodiments are only this practicality
Novel preferred embodiment, and it is not all.Based on the embodiment in embodiment, those skilled in the art are not making creation
Property labour under the premise of obtain other embodiments, belong to the scope of protection of the utility model.
As shown in Fig. 2, the hydraulic core_pulling circuit system of injection molding machine, including oil cylinder 21, system fuel tank and connection oil cylinder and
The oil channel structures of system fuel tank, oil channel structures include oil inlet pipe 23 and oil outlet pipe 24, and the oil outlet end 20 of system fuel tank passes through
Oil inlet pipe 23 is connected with the oil inlet of liquid valve 22, and the first actuator port of liquid valve 22 passes through the nothing of the first pipeline 25 and oil cylinder 21
Rod cavity is connected, and the second actuator port of liquid valve is connected by the second pipeline 26 with the rod chamber of oil cylinder 21, the oil return opening of liquid valve 22
It is connected by oil outlet pipe 24 with the oil revolving end 27 of system fuel tank.
Liquid valve 22 is three position four-way electrohy-draulic valve, by Electromagnetic Control, adjusts direction, flow, speed and the other parameter of medium.
Liquid valve 22 regulates and controls oil circuit flow direction, realizes core pulling action, when the P of liquid valve leads to A, B leads to T, realizes into core function；When the P of liquid valve leads to B, A
Core function is moved back in logical T, realization.
251 and the 4th check valve 261 of third check valve is set respectively on the first pipeline 25 and the second pipeline 26.Check valve is protected
Card fluid can only be flowed along oil inlet direction, and anti-backflow keeps hydraulic oil to be applied to the pressure of oil cylinder.
Add the first drain line 28 and second for connecting oil outlet pipe respectively on the first pipeline 25 and the second pipeline 26
Drain line 29, relief valve 30 is installed in drain line end and for all the way on the pipeline of merging.Relief valve 30 is electromagnetism control
System, when relief valve obtains electric, internal path, i.e. drain line is connected.
First check valve 281 and the second check valve 291 are set respectively on first drain line 28 and the second drain line 29.
As shown in Figure 3-4, oil channel structures further include the valve seat 31 of fixer valve 22, above-mentioned oil outlet pipe, oil inlet pipe
And drain line is arranged on the threaded mounting hole of the inside of valve seat 31, surface setting installation check valve and relief valve 30, valve seat
31 gather together the hydraulic circuit of dispersion, more compact structure.
The hose 32 of setting connection oil cylinder 21 on valve seat 31.
The operation principle of the utility model：
In more mold exchange, core pulling oil circuit is stopped, and opens relief valve, the pressure oil stream being stored in pipeline and oil cylinder
System fuel tank is returned, residual pressure in removal cylinder pipe ensures the safety when dismantling pipeline.
When multiple core pulling oil cylinders work together, the oil channel structures of each oil cylinder are connected in parallel on a total oil inlet pipe and go out
On oil pipe line, the first drain line of each oil cylinder and the second drain line end and to a total drain line are total at this
Drain line on relief valve is installed, while complete whole oil cylinders draining pressure release work.
The utility model is simple and reliable for structure, easy to maintenance, after the residual pressure removal in pipeline and oil cylinder, reduces liquid
The waste of pressure oil and the pollution to environment improve the safety of operation employee.
Claims (5)
1. a kind of oil channel structures of oil cylinder, including oil inlet pipe and oil outlet pipe, on the oil inlet pipe and oil outlet pipe respectively
Connect the oil inlet and oil outlet of liquid valve, the first actuator port and the second actuator port of liquid valve pass through the first pipeline and the respectively
Two pipelines connect oil cylinder, which is characterized in that the first pipeline and the second pipeline pass through the first drain line and the second drain mast respectively
Road connects oil outlet pipe, first drain line and the second drain line end and for all the way, and is provided with relief valve, described
The first check valve and the second check valve are set respectively on first drain line and the second drain line.
2. oil channel structures as described in claim 1, which is characterized in that the liquid valve is three position four-way electrohy-draulic valve.
3. oil channel structures as described in claim 1, which is characterized in that set on first pipeline and the second pipeline respectively
Three check valves and the 4th check valve.
4. oil channel structures as described in claim 1, which is characterized in that include the valve seat of fixer valve, the oil outlet pipe, into
Oil pipe line and drain line are arranged on the threaded mounting hole of the inside of valve seat, surface setting installation check valve and relief valve.
5. oil channel structures as claimed in claim 4, which is characterized in that the hose of setting connection oil cylinder on the valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721287806.9U CN207513965U (en) | 2017-09-30 | 2017-09-30 | A kind of oil channel structures of oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721287806.9U CN207513965U (en) | 2017-09-30 | 2017-09-30 | A kind of oil channel structures of oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207513965U true CN207513965U (en) | 2018-06-19 |
Family
ID=62533933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721287806.9U Active CN207513965U (en) | 2017-09-30 | 2017-09-30 | A kind of oil channel structures of oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207513965U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109203401A (en) * | 2018-09-30 | 2019-01-15 | 广州市型腔模具制造有限公司 | A kind of exchanging structure optimizing densely arranged hydraulic cylinder connection oil circuit |
| CN111271342A (en) * | 2020-03-02 | 2020-06-12 | 三一汽车起重机械有限公司 | Oil cylinder bending-prevention overvoltage protection system, oil cylinder overvoltage protection method and crane |
| CN113565820A (en) * | 2021-08-11 | 2021-10-29 | 浙江旭昌昇装备科技有限公司 | Injection molding machine mould neutron pressurize pressure release oil piping system |
-
2017
- 2017-09-30 CN CN201721287806.9U patent/CN207513965U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109203401A (en) * | 2018-09-30 | 2019-01-15 | 广州市型腔模具制造有限公司 | A kind of exchanging structure optimizing densely arranged hydraulic cylinder connection oil circuit |
| CN109203401B (en) * | 2018-09-30 | 2024-03-01 | 广州市型腔模具制造有限公司 | Transfer structure for optimizing densely-arranged hydraulic cylinder connecting oil paths |
| CN111271342A (en) * | 2020-03-02 | 2020-06-12 | 三一汽车起重机械有限公司 | Oil cylinder bending-prevention overvoltage protection system, oil cylinder overvoltage protection method and crane |
| CN113565820A (en) * | 2021-08-11 | 2021-10-29 | 浙江旭昌昇装备科技有限公司 | Injection molding machine mould neutron pressurize pressure release oil piping system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207513965U (en) | A kind of oil channel structures of oil cylinder | |
| CN104047912B (en) | The digital pump controlled hydraulic differential cylinder in self-powered source | |
| CN102425587A (en) | Physical simulation test system for subsea production facility hydraulic control system | |
| CN206035914U (en) | Four jar synchronous hydraulic system of automobile elevator | |
| CN203488328U (en) | Pumping system and concrete pumping device | |
| CN206467707U (en) | A kind of excavator energy regenerating and utilize system | |
| CN205136176U (en) | Hydraulic circuit | |
| CN205089704U (en) | Oil pressure turbocharging system of function block in mould | |
| CN206860573U (en) | A kind of plunger pump Stress control valve group | |
| CN206966633U (en) | The mouth of a river controls hydraulic system and big water-coating port mechanism | |
| CN207432718U (en) | A kind of PVC injectors hydraulic control system | |
| CN205331103U (en) | A hydraulic system for controlling paver aircraft bonnet and ceiling lift | |
| CN214499592U (en) | Two-way speed governing hydraulic pressure valves | |
| CN205190389U (en) | Bolt hydro -cylinder system with self -locking function | |
| CN102094608A (en) | Automatic water power pressure adjustment system | |
| CN207526813U (en) | Electrohydraulic actuator oiling exhaust system | |
| CN208804059U (en) | A kind of variable-pressure underwater pelletizer cutterhead movable hydraulic system | |
| CN203809418U (en) | Hydraulic oil cylinder testing system | |
| CN205078522U (en) | Two powered hydraulic pressure systems | |
| CN201588194U (en) | Piston single hoisting-point hydraulic hoist | |
| CN202140378U (en) | Oil suction and return filter system for protecting two-way check valve | |
| CN108343757A (en) | Hydraulic control band bypasses linkage ball valve | |
| CN205190388U (en) | Hydro -cylinder hydraulic system of pressure adjustable bolt | |
| CN205977839U (en) | Conticaster developments are gently pushed down and are used hydraulic system | |
| CN101670571B (en) | Dismounting device of hydraulic cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |