CN206335124U - A kind of hydraulic circuit for being used to control die casting machine vacuum-pumping valve to be opened and closed - Google Patents
A kind of hydraulic circuit for being used to control die casting machine vacuum-pumping valve to be opened and closed Download PDFInfo
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- CN206335124U CN206335124U CN201621258096.2U CN201621258096U CN206335124U CN 206335124 U CN206335124 U CN 206335124U CN 201621258096 U CN201621258096 U CN 201621258096U CN 206335124 U CN206335124 U CN 206335124U
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Abstract
A kind of hydraulic circuit for being used to control die casting machine vacuum-pumping valve to be opened and closed, including energy storage section, quickly drain the oil and oil bleeding part, energy storage section is made up of pressure-reducing valve and check valve, quick part of draining the oil is made up of accumulator, electro-hydraulic direction valve and hydraulic control one-way valve, and oil bleeding part is made up of first throttle valve, second throttle and the 3rd choke valve；Described die casting machine includes vacuumizing be provided with vacuum-pumping valve on oil cylinder, cover half, dynamic model and die cavity, dynamic model, and the piston rod movable telescopic for vacuumizing oil cylinder is opened and closed on vacuum-pumping valve.The improvement that the utility model passes through said structure, control the oil of accumulator to quickly enter using the commutation action of electro-hydraulic direction valve and vacuumize oil cylinder, to drive the piston rod movement for vacuumizing oil cylinder, so as to reach the effect for fast and accurately opening and closing vacuum-pumping valve, the vacuum-pumping valve of die casting machine is set to fully open or close in more than 100 milliseconds, simultaneously each time error can be controlled within a few tens of milliseconds, use user more convenient.
Description
Technical field
The utility model is related to a kind of hydraulic circuit for being used to control die casting machine vacuum-pumping valve to be opened and closed.
Background technology
Chinese patent literature number disclosed a kind of vacuum die casting machine for CN102773448A on November 14th, 2012, and it is in pressure
Outer vacuum system, driving die cavity vacuum passage disabling mechanism that die cavity vacuumizes are integrated with casting machine and opens or block mould type
The hydraulic system of chamber evacuation passageway, and possess the die casting machine integrated control system for controlling above-mentioned two systemic-function so that the pressure
Casting machine can be required according to vacuum die casting process, and intelligent integrated control is carried out to the overall process of evacuated die-casting process by integrated control system
System, when it implements evacuated die-casting process, after cast, drift move ahead closing pressure chamber cast gate, integrated control system is accurate, drive in an orderly manner
The quick opening mold die cavity evacuation passageway of die cavity vacuum passage disabling mechanism, is vacuumized to die cavity, and is supported filling type melt flow
It is opened in before the evacuation passageway entrance of mold cavity end, driving die cavity vacuum passage disabling mechanism quickly blocks mold cavity
Evacuation passageway, is reliably achieved evacuated die-casting process production.But the structure is considerably complicated, while vacuum-pumping valve can not be realized
Quickly, opening and closing is prepared, it is impossible to meet the use demand of user.Therefore, it is necessary to further improve.
Utility model content
The purpose of this utility model aim to provide a kind of simple and reasonable, excellent performance, low cost of manufacture, easily production,
Easily realization, the hydraulic circuit safe and reliable and using scope extensively for being used to control die casting machine vacuum-pumping valve to be opened and closed, existing to overcome
There is the weak point in technology.
A kind of hydraulic circuit for being used to control die casting machine vacuum-pumping valve to be opened and closed designed by this purpose, including energy storage part
Divide, quickly drain the oil and oil bleeding part, it is characterised in that：Energy storage section is made up of pressure-reducing valve and check valve, quickly drain the oil part by
Accumulator, electro-hydraulic direction valve and hydraulic control one-way valve composition, oil bleeding part is by first throttle valve, second throttle and the 3rd choke valve
Composition；Described die casting machine includes vacuumizing be provided with vacuum-pumping valve on oil cylinder, cover half, dynamic model and die cavity, dynamic model, vacuumizes
The piston rod movable telescopic of oil cylinder is opened and closed on vacuum-pumping valve.
The accumulator is directly connected to electro-hydraulic direction valve and the two is placed in and vacuumizes the nearest position of oil cylinder.
Be provided with A mouthfuls and B mouthfuls on the electro-hydraulic direction valve, hydraulic control one-way valve be provided with two and be separately positioned on A mouthfuls and
On B mouths；Described vacuumize is formed with oil inlet and oil return opening on oil cylinder, A, B mouth of electro-hydraulic direction valve pass through fluid-control one-way respectively
Valve is connected with oil inlet and oil return opening, retreated during cylinder efficient with being prevented from vacuumizing.
Described first throttle valve one end and accumulator are connected, the other end respectively with second throttle, the 3rd choke valve
One end fits are connected；The A mouths of the oil inlet and electro-hydraulic direction valve of the second throttle other end respectively with vacuumizing oil cylinder, which coordinate, to be connected
Connect, the B mouths of the oil return opening and electro-hydraulic direction valve of the 3rd choke valve other end respectively with vacuumizing oil cylinder are connected.
Described check valve one end is connected with pressure-reducing valve, and the other end coordinates with accumulator and electro-hydraulic direction valve connect respectively
Connect.
The utility model controls the oily fast of accumulator by the improvement of said structure using the commutation action of electro-hydraulic direction valve
Speed, which enters, vacuumizes oil cylinder, to drive the piston rod movement for vacuumizing oil cylinder, is taken out so as to reach and fast and accurately open and close
The effect of vacuum valve, enables the vacuum-pumping valve of die casting machine to fully open or close in more than 100 milliseconds, while every time
Time error can control within a few tens of milliseconds, make user using more facilitate.It has simple and reasonable, performance excellent
Different, low cost of manufacture, easily production, easily realize, it is safe and reliable the features such as, can also be widely applicable for other needs quick motion
Hydraulic circuit in, it is wide using scope.
Brief description of the drawings
Fig. 1 is the utility model first embodiment decomposition texture schematic diagram.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is further described to the utility model.
Referring to Fig. 1, this is used for the hydraulic circuit for controlling die casting machine vacuum-pumping valve to be opened and closed, including energy storage section, quickly puts
Oil and oil bleeding part, energy storage section are made up of pressure-reducing valve 1 and check valve 2, and part of quickly draining the oil is by accumulator 4, electro-hydraulic direction valve 5
Constituted with hydraulic control one-way valve 6, oil bleeding part is made up of first throttle valve 3, the choke valve 8 of second throttle 7 and the 3rd；Described pressure
Casting machine includes vacuumizing be provided with vacuum-pumping valve 10 on oil cylinder 9, cover half 11, dynamic model 12 and die cavity 13, dynamic model 12, vacuumizes oil
The piston rod movable telescopic of cylinder 9 is opened and closed on vacuum-pumping valve 10.
Further speaking, accumulator 4 is directly connected to electro-hydraulic direction valve 5 and the two is placed in and vacuumizes the nearest position of oil cylinder 9
Put.
Further speaking, A mouthfuls and B mouthfuls are provided with electro-hydraulic direction valve 5, hydraulic control one-way valve 6 is provided with two and set respectively
Put on A mouthfuls and B mouths；Described vacuumize is formed with oil inlet and oil return opening on oil cylinder 9, A, B mouth of electro-hydraulic direction valve 5 lead to respectively
Cross hydraulic control one-way valve 6 to be connected with oil inlet and oil return opening, retreated with preventing from vacuumizing when oil cylinder 9 works.
Further speaking, the one end of first throttle valve 3 is connected with accumulator 4, the other end respectively with second throttle 7,
The one end fits of 3rd choke valve 8 are connected；The other end of second throttle 7 respectively with the oil inlet for vacuumizing oil cylinder 9 and electro-hydraulic direction
The A mouths of valve 5 are connected, and the other end of the 3rd choke valve 8 is respectively with vacuumizing the oil return opening of oil cylinder 9 and the B mouths of electro-hydraulic direction valve 5
It is connected.
Further speaking, the one end of check valve 2 is connected with pressure-reducing valve 1, the other end respectively with accumulator 4 and electro-hydraulic direction
Valve 5 is connected.
Its operation principle is as follows：
When the pressure of die casting machine is higher than the pressure value that pressure-reducing valve 1 is set, accumulator 4 proceeds by energy storage, energy storage injection
Reach and will be signaled to during certain position electro-hydraulic direction valve 5, the right electromagnet of electro-hydraulic direction valve 5 obtains electric, vacuumizes oil
The piston rod of cylinder 9 is moved down while opening vacuum-pumping valve 10, and die casting machine starts to vacuumize；After die casting machine vacuumizes end, electricity
The left side electromagnet of liquid direction valve 5 obtains electric, and past move up of piston rod for vacuumizing oil cylinder 9 simultaneously closes off vacuum-pumping valve 10.
General principle of the present utility model, principal character and advantage of the present utility model has been shown and described above.Ability
The technical staff in domain should be recognized that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, the utility model also has on the premise of the utility model spirit and scope are not departed from
Various changes and modifications, these changes and improvements are both fallen within the range of claimed the utility model.The utility model requirement
Protection domain is defined by appending claims and its equivalent.
Claims (5)
1. a kind of hydraulic circuit for being used to control die casting machine vacuum-pumping valve to be opened and closed, including energy storage section, quickly drain the oil and draining
Part, it is characterised in that：Energy storage section is made up of pressure-reducing valve (1) and check valve (2), and part of quickly draining the oil is by accumulator (4), electricity
Liquid direction valve (5) and hydraulic control one-way valve (6) composition, oil bleeding part is by first throttle valve (3), second throttle (7) and Section three
Flow valve (8) composition；Described die casting machine includes vacuumizing oil cylinder (9), cover half (11), dynamic model (12) and die cavity (13), dynamic model
(12) vacuum-pumping valve (10) is provided with, the piston rod movable telescopic for vacuumizing oil cylinder (9) is opened and closed in vacuum-pumping valve (10)
On.
2. it is used for the hydraulic circuit for controlling die casting machine vacuum-pumping valve to be opened and closed according to claim 1, it is characterised in that：It is described
Accumulator (4) is directly connected to electro-hydraulic direction valve (5) and the two is placed in and vacuumizes the nearest position of oil cylinder (9).
3. it is used for the hydraulic circuit for controlling die casting machine vacuum-pumping valve to be opened and closed according to claim 2, it is characterised in that：It is described
A mouthfuls and B mouthfuls are provided with electro-hydraulic direction valve (5), hydraulic control one-way valve (6) is provided with two and is separately positioned on A mouthfuls and B mouths；
Described vacuumize is formed with oil inlet and oil return opening on oil cylinder (9), A, B mouth of electro-hydraulic direction valve (5) pass through fluid-control one-way respectively
Valve (6) is connected with oil inlet and oil return opening, is retreated with preventing from vacuumizing during oil cylinder (9) work.
4. it is used for the hydraulic circuit for controlling die casting machine vacuum-pumping valve to be opened and closed according to claim 3, it is characterised in that：It is described
First throttle valve (3) one end and accumulator (4) are connected, the other end respectively with second throttle (7), the 3rd choke valve (8)
One end fits are connected；Second throttle (7) other end is respectively with vacuumizing the oil inlet of oil cylinder (9) and the A of electro-hydraulic direction valve (5)
Mouth is connected, and the 3rd choke valve (8) other end is respectively with vacuumizing the oil return opening of oil cylinder (9) and the B mouths of electro-hydraulic direction valve (5)
It is connected.
5. it is used for the hydraulic circuit for controlling die casting machine vacuum-pumping valve to be opened and closed according to claim 1, it is characterised in that：It is described
Check valve (2) one end is connected with pressure-reducing valve (1), and the other end coordinates with accumulator (4) and electro-hydraulic direction valve (5) connect respectively
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621258096.2U CN206335124U (en) | 2016-11-18 | 2016-11-18 | A kind of hydraulic circuit for being used to control die casting machine vacuum-pumping valve to be opened and closed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621258096.2U CN206335124U (en) | 2016-11-18 | 2016-11-18 | A kind of hydraulic circuit for being used to control die casting machine vacuum-pumping valve to be opened and closed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206335124U true CN206335124U (en) | 2017-07-18 |
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ID=59307801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621258096.2U Active CN206335124U (en) | 2016-11-18 | 2016-11-18 | A kind of hydraulic circuit for being used to control die casting machine vacuum-pumping valve to be opened and closed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206335124U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108372283A (en) * | 2018-04-13 | 2018-08-07 | 宁波力劲科技有限公司 | A kind of die casting machine core-pulling device and core pulling method |
-
2016
- 2016-11-18 CN CN201621258096.2U patent/CN206335124U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108372283A (en) * | 2018-04-13 | 2018-08-07 | 宁波力劲科技有限公司 | A kind of die casting machine core-pulling device and core pulling method |
| CN108372283B (en) * | 2018-04-13 | 2024-04-19 | 宁波力劲科技有限公司 | Core pulling method of core pulling device of die casting machine |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 528300 Guangdong province Foshan city Shunde high tech Zone (Ronggui) No. 22 Keyuan Road three Patentee after: Yizhimi Co.,Ltd. Address before: 528300 Guangdong province Foshan city Shunde high tech Zone (Ronggui) No. 22 Keyuan Road three Patentee before: GUANGDONG YIZUMI PRECISION MACHINERY Co.,Ltd. |