CN207033866U - One kind die sinking protecting against shock hydraulic system - Google Patents
One kind die sinking protecting against shock hydraulic system Download PDFInfo
- Publication number
- CN207033866U CN207033866U CN201720994568.9U CN201720994568U CN207033866U CN 207033866 U CN207033866 U CN 207033866U CN 201720994568 U CN201720994568 U CN 201720994568U CN 207033866 U CN207033866 U CN 207033866U
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- China
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- unlocking
- oil cylinder
- rodless cavity
- valve
- mould oil
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Abstract
One kind die sinking protecting against shock hydraulic system.Noise is big when solving existing unlocking mold oil cylinder mould, impacts the problem of big.It includes unlocking mould oil cylinder, unlocking mold valve and fuel tank, described unlocking mould oil cylinder is provided with rod cavity and rodless cavity, described unlocking mold valve has the first state for make it that pressure oil is connected with unlocking mold oil cylinder rodless cavity, second state of centre cut-off and the third state that unlocking mold oil cylinder rodless cavity is connected with fuel tank, it is provided between the unlocking mould oil cylinder and fuel tank and unloads casting die, the described casting die that unloads has first position and the second place for the rodless cavity oil return for causing unlocking mould oil cylinder that is connected so that the rodless cavity of unlocking mould oil cylinder mutually disconnects with fuel tank.The utility model carries out fast pressure relief using hydraulic oil in casting die dual lock mould oil cylinder rodless cavity is unloaded, be then turned on unlocking mold valve cause hydraulic oil big flow by, it is simple and compact for structure, after discharging pressure, mold noiseless without impacting, realize steady die sinking.
Description
Technical field
It the utility model is related to the die sinking hydraulic system of injection machine, die casting machine, and in particular to one kind die sinking protecting against shock hydraulic pressure
System.
Background technology
Release is first carried out when not molded in the die sinking system of domestic medium-and-large-sized injection machine or die casting machine at present, due to note
Molding machine is to use five fulcrum crank structures, and after Mode-locking oil cylinder moves forward locking die, hydraulic oil is stored with oil cylinder rodless cavity, by
It is big in cylinder body volume so pressure is very high, the rod chamber oil-feed when to be molded, rodless cavity wants oil extraction, when the hydraulic oil of rodless cavity
When abrupt release, huge impulsive force and noise can be produced, or even sebific duct and cylinder seal part can be destroyed.Domestic injection
This phenomenon of machine is generally existing, and some producers take the commutating speed for reducing guide's solenoid directional control valve to solve, but effect is not
Ideal, control accuracy and efficiency reduce.Because oil cylinder volume is big, pressure is high, so the energy of release is bigger, if with greatly
Logical valve is directly opened, and clearly, noise is very big for impulsive force, therefore production environment and the service life of machine to operator
It is all unfavorable.
The content of the invention
Noise is big during to solve existing unlocking mold oil cylinder mould in background technology, impacts the problem of big, the utility model carries
Protecting against shock hydraulic system is molded for one kind.
The technical solution of the utility model is：One kind die sinking protecting against shock hydraulic system, including unlocking mould oil cylinder, unlocking mold valve
And fuel tank, described unlocking mould oil cylinder are provided with piston rod, unlocking mould oil cylinder is divided into rod chamber and nothing by described piston rod
Rod cavity, described unlocking mold valve are located between unlocking mould oil cylinder and fuel tank, and described unlocking mold valve, which has, causes pressure oil with opening
The first state that Mode-locking oil cylinder rodless cavity is connected, the second state and so that unlocking mold oil cylinder rodless cavity and fuel tank of centre cut-off
The third state being connected, for described unlocking mold valve in first state, unlocking mold cylinder rod chamber passes through unlocking mold valve and oil
Case is connected, and in the third state, unlocking mold cylinder rod chamber is connected described unlocking mold valve by unlocking mold valve with pressure oil
It is logical, it is provided between the rodless cavity and fuel tank of the unlocking mould oil cylinder and unloads casting die, the described casting die that unloads has so that unlocking mould oil cylinder
The first position that is mutually disconnected with fuel tank of rodless cavity and the rodless cavity oil return for causing unlocking mould oil cylinder that is connected the second place, institute
The casting die that unloads stated opens the second place so that the rodless cavity of unlocking mould oil cylinder is by unloading casting die before the unlocking mold valve third state
Release oil return.
As a kind of improvement of the present utility model, described unloading is provided with throttling arrangement between casting die and fuel tank.
As further improvement of the utility model, the replaceable setting of described throttling arrangement.
As further improvement of the utility model, described throttling arrangement is provided with throttle orifice.
As further improvement of the utility model, the described casting die that unloads is provided with check valve, and described unloads casting die use
Plug-in structure.
As further improvement of the utility model, the described casting die that unloads is bi-bit bi-pass reversal valve.
As further improvement of the utility model, described unlocking mold valve is three position four-way directional control valve.
As further improvement of the utility model, described unlocking mold valve is solenoid directional control valve.
The beneficial effects of the utility model are to be carried out using the hydraulic oil unloaded in casting die dual lock mould oil cylinder rodless cavity quick
Release, it is then turned on unlocking mold valve and causes hydraulic oil big flow by the way that executive component unlocking mould oil cylinder is just quick to be opened, structure letter
List is compact, and operation is easy, after discharging pressure, molds, realization steady die sinking noiseless without impacting, prolonged mechanical part life.
Brief description of the drawings
Accompanying drawing 1 is the hydraulic schematic diagram of the utility model embodiment.
In figure, 1, unlocking mould oil cylinder；11st, piston rod；12nd, rod chamber；13rd, rodless cavity；2nd, unlocking mold valve；3rd, fuel tank；4、
Unload casting die；41st, check valve；5th, throttling arrangement.
Embodiment
The utility model embodiment is described further below in conjunction with the accompanying drawings：
As shown in Figure 1, a kind of die sinking protecting against shock hydraulic system, including unlocking mould oil cylinder 1, unlocking mold valve 2 and fuel tank 3, institute
The unlocking mould oil cylinder 1 stated is provided with piston rod 11, and unlocking mould oil cylinder 1 is divided into rod chamber 12 and without bar by described piston rod 11
Chamber 13, described unlocking mold valve 2 are located between unlocking mould oil cylinder 1 and fuel tank 3, and described unlocking mold valve 2, which has, causes pressure oil
The first state being connected with the rodless cavity 13 of unlocking mould oil cylinder 1, the second state and cause unlocking mould oil cylinder 1 without bar that centre is ended
The third state that chamber 13 is connected with fuel tank 3, for described unlocking mold valve 2 in first state, the rod chamber 12 of unlocking mould oil cylinder 1 is logical
Cross unlocking mold valve 2 with fuel tank 3 to be connected, in the third state, the rod chamber 12 of unlocking mould oil cylinder 1 passes through described unlocking mold valve 2
Unlocking mold valve 2 is connected with pressure oil, is provided between the rodless cavity 13 and fuel tank 3 of the unlocking mould oil cylinder 1 and unloads casting die 4, described
The casting die 4 that unloads have so that first position that the rodless cavity 13 of unlocking mould oil cylinder 1 disconnects with the phase of fuel tank 3 and being connected so that unlocking
The second place of the oil return of rodless cavity 13 of mould oil cylinder 1, the described casting die 4 that unloads open second before the third state of unlocking mold valve 2
Position causes the rodless cavity 13 of unlocking mould oil cylinder 1 by unloading the release oil return of casting die 4.Described unlocking mold valve 2 changes for 3-position 4-way
To valve.Specifically, described unlocking mold valve 2 is solenoid directional control valve.The beneficial effects of the utility model are, using unloading casting die pair
The hydraulic oil of unlocking mold oil cylinder rodless intracavitary carries out fast pressure relief, be then turned on unlocking mold valve cause hydraulic oil big flow by,
The just quick unlatching of executive component unlocking mould oil cylinder, simple and compact for structure, operation is easy, after discharging pressure, molds and is made an uproar without impact nothing
Sound, realize steady die sinking, prolonged mechanical part life.
Casting die is unloaded equipped with small-sized in the back cavity of rodless cavity, is filled at the outage for unloading casting die equipped with replaceable throttling
Put, simple and compact for structure, operation is easy, after discharging pressure, molds, realization steady die sinking noiseless without impacting, prolonged mechanical zero
Component life.During locked mode, unlocking mold valve is in first state so that pressure oil enters unlocking mold oil cylinder rodless cavity, and piston rod is stretched
Go out, then unlocking mold valve is in switching and is in the second state, and pressure oil is locked in into unlocking mold oil cylinder rodless cavity, is easy to injection machine to add
Work acts.When die sinking when, unlocking mold valve obtain it is electric before, unload casting die than unlocking mold valve in advance it is electric, time service China can carry
Early 0.05 second to 0.2 second, it is preferable that 0.1 second ahead of time, high pressure liquid force feed flowed back to fuel tank through unloading casting die, throttling arrangement release,
Then unlocking mold valve obtains electric so that hydraulic oil big flow is by the way that unlocking mould oil cylinder is just quick to be opened so that hydraulic system is smoothly put down
Steady die sinking.
Described unloading is provided with throttling arrangement 5 between casting die 4 and fuel tank 3.Specifically, described throttling arrangement 5 is replaceable
Set.In particular, described throttling arrangement 5 is provided with throttle orifice.Such structure causes faster system response, can quickly unload
Pressure, release are steadily quick.Specifically throttling arrangement of the present utility model can be located on the valve body of unlocking mold valve and can with it
Dismantling connection.The throttling arrangement of different flow can be arranged as required to so that the utility model control accuracy is high, and energy consumption is small,
Range of fit is wide.
The described casting die 4 that unloads is provided with check valve 41, and the described casting die 4 that unloads uses plug-in structure.Specifically, it is described
The casting die 4 that unloads be bi-bit bi-pass reversal valve.Pass through the setting of reversal valve so that the utility model is in locked mode, unlocking mould oil cylinder
Rodless cavity will not be revealed, guarantee clamp force, and the reliable release of energy in die sinking so that this product control is reliable quick.This practicality
The new casting die that unloads can be located on the valve body of unlocking mold valve and is detachably connected with it.So that of the present utility model unload casting die and section
Device is flowed, simple in construction, compact, cost is small, is easy to promote.
Every technical staff's notice：Although the utility model describes according to above-mentioned embodiment, this
The invention thought of utility model is not limited to that utility model, any repacking with inventive concept, will all include this specially
In sharp scope of patent protection.
Claims (8)
1. one kind die sinking protecting against shock hydraulic system, it is characterised in that:Including unlocking mould oil cylinder（1）, unlocking mold valve（2）And fuel tank
（3）, described unlocking mould oil cylinder（1）It is provided with piston rod（11）, described piston rod（11）To be unlocked mould oil cylinder（1）It is divided into
Rod chamber（12）And rodless cavity（13）, described unlocking mold valve（2）Located at unlocking mould oil cylinder（1）With fuel tank（3）Between, it is described
Unlocking mold valve（2）With causing pressure oil and unlocking mould oil cylinder（1）Rodless cavity（13）The first state being connected, centre cut-off
Second state and so that unlocking mould oil cylinder（1）Rodless cavity（13）With fuel tank（3）The third state being connected, described unlocking mold valve
（2）In first state, unlocking mould oil cylinder（1）Rod chamber（12）Pass through unlocking mold valve（2）With fuel tank（3）It is connected, it is described
Unlocking mold valve（2）In the third state, unlocking mould oil cylinder（1）Rod chamber（12）Pass through unlocking mold valve（2）It is connected with pressure oil,
The unlocking mould oil cylinder（1）Rodless cavity（13）With fuel tank（3）Between be provided with unload casting die（4）, described unloads casting die（4）With making
Must be unlocked mould oil cylinder（1）Rodless cavity（13）With fuel tank（3）Mutually disconnect first position be connected so that unlocking mould oil cylinder（1）
Rodless cavity（13）The second place of oil return, described unloads casting die（4）In unlocking mold valve（2）Second is opened before the third state
Put so that unlocking mould oil cylinder（1）Rodless cavity（13）By unloading casting die（4）Release oil return.
2. a kind of die sinking protecting against shock hydraulic system according to claim 1, it is characterised in that described unloads casting die（4）With oil
Case（3）Between be provided with throttling arrangement（5）.
A kind of 3. die sinking protecting against shock hydraulic system according to claim 2, it is characterised in that described throttling arrangement（5）Can
Change and set.
A kind of 4. die sinking protecting against shock hydraulic system according to Claims 2 or 3, it is characterised in that described throttling arrangement
（5）It is provided with throttle orifice.
5. a kind of die sinking protecting against shock hydraulic system according to claim 1, it is characterised in that described unloads casting die（4）On set
There is check valve（41）, described unloads casting die（4）Using plug-in structure.
6. a kind of die sinking protecting against shock hydraulic system according to claim 1 or 5, it is characterised in that described unloads casting die（4）
For bi-bit bi-pass reversal valve.
A kind of 7. die sinking protecting against shock hydraulic system according to claim 1, it is characterised in that described unlocking mold valve（2）For
Three position four-way directional control valve.
A kind of 8. die sinking protecting against shock hydraulic system according to claim 1, it is characterised in that described unlocking mold valve（2）For
Solenoid directional control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720994568.9U CN207033866U (en) | 2017-08-10 | 2017-08-10 | One kind die sinking protecting against shock hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720994568.9U CN207033866U (en) | 2017-08-10 | 2017-08-10 | One kind die sinking protecting against shock hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207033866U true CN207033866U (en) | 2018-02-23 |
Family
ID=61474925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720994568.9U Active CN207033866U (en) | 2017-08-10 | 2017-08-10 | One kind die sinking protecting against shock hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207033866U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219841A (en) * | 2019-06-14 | 2019-09-10 | 中国矿业大学(北京) | The hydraulic system of instantaneous off-load |
-
2017
- 2017-08-10 CN CN201720994568.9U patent/CN207033866U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110219841A (en) * | 2019-06-14 | 2019-09-10 | 中国矿业大学(北京) | The hydraulic system of instantaneous off-load |
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