CN106704619A - Pneumatic vacuum valve - Google Patents
Pneumatic vacuum valve Download PDFInfo
- Publication number
- CN106704619A CN106704619A CN201710100518.6A CN201710100518A CN106704619A CN 106704619 A CN106704619 A CN 106704619A CN 201710100518 A CN201710100518 A CN 201710100518A CN 106704619 A CN106704619 A CN 106704619A
- Authority
- CN
- China
- Prior art keywords
- piston
- passage
- valve element
- valve
- vacuum valve
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 5
- 239000000428 dust Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 238000004886 process control Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 14
- 230000008569 process Effects 0.000 abstract description 12
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000000638 solvent extraction Methods 0.000 abstract 2
- 238000005192 partition Methods 0.000 abstract 1
- 238000004512 die casting Methods 0.000 description 10
- 230000006872 improvement Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
Abstract
The invention discloses a pneumatic vacuum valve which comprises a valve body. The valve body is provided with an air inlet and an air outlet, and the air inlet and the air outlet communicate and form an exhaust channel. A switch channel communicating with the exhaust channel is arranged in the valve body. A valve element and a plug are arranged in the switch channel. The piston is in sliding connection with the wall of the switch channel. The valve element is inserted to the end of the piston. A control channel is arranged in the position, crossed with the switch channel, in the exhaust channel. The valve element is provided with a switch part which is located at the crossing position of the exhaust channel and the switch channel. The switch part controls the control channel to be through or blocked in the sliding process of the valve element, and the valve element is provided with a partitioning part which can partition the piston from the exhaust channel. By integrating the valve element and the piston, the work stability and reliability of the valve element are improved; and meanwhile, by partitioning the piston from the exhaust channel, the adaptability of the vacuum valve under severe conditions is improved, and the maintenance cycle of the vacuum valve is prolonged. The pneumatic vacuum valve is applicable to the field of vacuum valves.
Description
Technical field
The present invention relates to vacuum valve field, more particularly to a kind of Pneumatic vacuum valve.
Background technology
In modern Die Casting, evacuated die-casting process is an important process meanses, and evacuated die-casting process is by die casting
The gas in die casting die cavity is extracted in journey and is eliminated or is substantially reduced the stomata and dissolved gas in die casting, so as to improve
Die casting mechanical property and surface quality, but the fault rate high and long maintenance time of vacuum valve constrain making for evacuated die-casting process
With and development.
The valve element of vacuum valve practical on the market uses spring linkage structure with piston now, causes vacuum valve
Internal structure is more complicated so that I＆ M is more difficult.Bleed-off passage is identical with the active path of piston simultaneously, makes
During, spring is fragile under the high temperature conditions, need to often change, and the greasy filth of bleed-off passage accumulation can limit the fortune of piston
It is dynamic, cause the blocking of vacuum valve, it is therefore desirable to often pull down cleaning, reduce the efficiency of work.
The content of the invention
In order to solve the above problems, it is an object of the invention to provide a kind of Pneumatic vacuum valve, it is possible to increase vacuum valve work
The Stability and dependability of work.
The technical solution adopted in the present invention is：A kind of Pneumatic vacuum valve, including valve body, the valve body are provided with air inlet
With the gas outlet that can be connected negative pressure source, the air inlet connects with gas outlet and constitutes bleed-off passage, be provided with the valve body
The switching channels connected with bleed-off passage, are provided with valve element and piston in the switching channels, the piston under gas-powered with
The wall of switching channels is slided and is connected, and the valve element is inserted into the end of piston, the bleed-off passage and intersects position with switching channels
Control passage is installed, the valve element is provided with switch portion, and the switch portion is in bleed-off passage and switching channels intersection location,
Switch portion controls control passage to turn on or block in valve element sliding process, so that turn on or isolate air inlet and gas outlet, institute
State valve element and be provided with the isolation part for being capable of separator piston and bleed-off passage.
Used as the further improvement of such scheme, the piston includes the piston portion and connecting portion that are fixedly linked, the work
Piston part is slided with the wall of switching channels and is connected, and the piston portion is tightly connected with the wall of switching channels, and the valve element is inserted into company
In socket part.
Used as the further improvement of such scheme, the valve body is provided with the first inlet channel and the second inlet channel, institute
State the first inlet channel to be connected with switching channels respectively with the second inlet channel, first inlet channel and the second inlet channel
Two ends of piston portion are passed to respectively.
As the further improvement of such scheme, seal cover board is provided with the switching channels, is set on the seal cover board
There is recess, the connecting portion is slided with seal cover board and is connected, and side wall and the wall of recess of the connecting portion are tightly connected, described recessed
The wall of mouth is provided with dust ring and sealing ring.
Used as the further improvement of such scheme, the switch portion passes through when control passage is blocked with the wall of control passage
Inclined-plane coordinates.
As the further improvement of such scheme, valve element department is provided with bleed-off passage intersection location on the switching channels
Set, the valve element is slidably connected in valve element department set, and the control passage is located in valve element department set.
As the further improvement of such scheme, the 3rd inlet channel is additionally provided with the valve body, the 3rd air inlet is led to
Road is connected with bleed-off passage.
As the further improvement of such scheme, be additionally provided with water inlet and delivery port on the valve body, the water inlet with
Delivery port is connected and constitutes cooling duct.
Used as the further improvement of such scheme, the valve body is provided with fixed screw, and the fixed screw is provided with slow
Rush spring, the buffer spring two ends recline valve body and the end of fixed screw respectively.
Used as the further improvement of such scheme, the gas outlet is provided with negative pressure source connecting tube, the negative pressure source connection
Screen pack is provided with pipe.
Beneficial effects of the present invention：The present invention substitutes conventional spring connection by the way that valve element and piston are set into overall structure
Dynamic structure, improves the stability and reliability of valve element work, while piston is isolated with bleed-off passage, improves vacuum
Valve adaptability under severe conditions, extends the maintenance period of vacuum valve, improves operating efficiency.
Brief description of the drawings
The present invention is further described with implementation method below in conjunction with the accompanying drawings.
Fig. 1 is valve body sectional view of the present invention；
Fig. 2 is valve inner structure chart of the present invention；
Fig. 3 is valve body valve element of the present invention and piston connection figure；
Fig. 4 is inlet channel schematic diagram of the present invention；
Fig. 5 is inclined-plane cooperation schematic diagram of the present invention；
Fig. 6 is valve element department set scheme of installation of the present invention；
Fig. 7 is cooling duct schematic diagram of the present invention；
Fig. 8 is valve body outside schematic diagram of the present invention.
Specific embodiment
Pneumatic vacuum valve, as shown in figure 1, including valve body 1, valve body 1 includes the upper plate being from top to bottom fixedly connected sequentially
13rd, mesoplate 14, lower plate 15, valve body 1 are provided with air inlet 16 and can be connected the gas outlet 17 of negative pressure source, gas outlet 17
In the left surface of mesoplate 14, air inlet 16 is surrounded by the right flank of mesoplate 14 with the right flank of upper plate 13, air inlet 16
Bleed-off passage 11 is connected and constituted with gas outlet 17, and inside mesoplate 14, another part is in for a part for bleed-off passage 11
Plate 14 is surrounded with upper plate 13.It is provided with valve body 1 in the switching channels 12 connected with bleed-off passage 11, bleed-off passage 11 and is opened
Close the intersection location of passage 12 and be provided with control passage 111, the return portion in control passage 111 i.e. figure on bleed-off passage 11.
Referring to figs. 2 and 3, valve element 2 and piston 3 are provided with switching channels 12, switching channels 12 are " convex " shape structure, piston
3 include the piston portions 31 that are fixedly linked and connecting portion 32, piston portion 31 under gas-powered with the wall of the bottom of switching channels 12
Slide and be connected, valve element 2 is inserted on connecting portion 32, valve element 2 and piston 3 are set into overall structure substitutes conventional spring linkage
Structure, improves the stability and reliability of the work of valve element 2.Valve element 2 is provided with switch portion 21, and switch portion is in bleed-off passage 11
With the intersection location of switching channels 12, switch portion controls control passage 111 to turn on or block in the sliding process of valve element 2, so as to lead
Logical or isolation air inlet and gas outlet, the switch portion that control passage 111 can be controlled to turn on or block in the sliding process of valve element 2
21, switch portion 21 is above-mentioned separator, and switch portion 21 is disc-shaped structure, and the port of control passage 111 is and the phase of switch portion 21
The circular hole of configuration, when piston 3 is with 2 upward sliding of movable valve plug, switch portion 21 is separated with control passage 111, and bleed-off passage 11 is led
Logical, vacuum valve is started working；When piston 3 is with 2 slide downward of movable valve plug, switch portion 21 is contacted and covered with control passage 111
The port of control passage 111, bleed-off passage 11 is blocked, and vacuum valve is stopped.Valve element 2 be provided with can separator piston 3 with take out
The isolation part 22 of gas passage 11, isolation part 22 can keep being fitted with the wall on the top of control passage 111 in sliding process, will
Piston 3 is isolated with bleed-off passage 11, improves vacuum valve adaptability under severe conditions, extends the dimension of vacuum valve
In the shield cycle, improve operating efficiency.
Preferably, with reference to Fig. 2 and Fig. 4, valve body 1 is provided with the first gas passage 61 and the second gas passage 62, the first gas passage
61 and second the import of gas passage 62 be respectively the left surface of lower plate 15, the first gas passage 61 and the second gas passage 62 respectively with
Switching channels 12 are connected, and the first gas passage 61 passes to the top of piston portion 31, and the second gas passage 62 passes to the bottom of piston portion 31, when
During one gas 61 air inlet of passage, filled arrows direction in such as Fig. 4, gas pressure drives the slide downward of piston 3, and piston 3 is with movable valve plug 2
During slide downward, switch portion 21 is contacted with control passage 111 and covers the port of control passage 111, and bleed-off passage 11 is blocked, very
Empty valve is stopped；When the second gas 62 air inlet of passage, the hollow direction of arrow in such as Fig. 4, gas pressure drives piston 3 to slide up
Dynamic, when piston 3 is with 2 upward sliding of movable valve plug, switch portion 21 is separated with control passage 111, and bleed-off passage 11 is turned on, and vacuum valve is opened
Beginning work.
Preferably, seal cover board 5 is provided with switching channels 12, seal cover board 5 is provided with recess, connecting portion 32 and closure
Plate 5 is slided and is connected, and side wall and the wall of recess of connecting portion 32 are tightly connected, and seal cover board 5 further enhancing piston portion 31
Sealing effectiveness, can prevent the greasy filth in bleed-off passage 11 from falling, and gas can be also prevented when the first gas passage 61 is entered from each
Revealed in the joint gap of part.The wall of recess is provided with dust ring 51 and sealing ring 52, further enhances piston portion 31
Sealing property.
Preferably, with reference to Fig. 5, switch portion 21 is matched somebody with somebody with the wall of control passage 111 when control passage 111 is blocked by inclined-plane
Close, switch portion lower end is inclined-plane, equally there is the inclined-plane of and switch portion inclined-plane phase configuration on the wall of switching channels, inclined-plane coordinates
The contact area of switch portion 21 and the wall of control passage 111 can be increased, that is, increased water shutoff area, improve the envelope of valve body 1
Outlet capacity.
Preferably, with reference to Fig. 6, because the wall of switch portion 21 and control passage 111 is coordinated using inclined-plane so that control passage
There is weak location between 111 wall and control unit, the prolonged abrasion used by causing valve body 1, therefore it is logical in switch
A valve element department set 4 is set up on road 12 with the intersection location of bleed-off passage 11, valve element 2 is slidably connected in valve element department set 4, and control is logical
Road 111 is located in valve element department set 4, after vacuum valve weares and teares, need to only change valve element 2 or valve element department set 4, reduces vacuum
The replacement cost of valve.
Preferably, with reference to Fig. 2, the 3rd inlet channel 63, the 3rd inlet channel 63 and bleed-off passage 11 are additionally provided with valve body 1
Connection, can be by the 3rd inlet channel 63 to gas injection or water in bleed-off passage 11, to clear up vacuum valve.
Preferably, with reference to Fig. 7, water inlet 151 and delivery port 152, water inlet 151 are additionally provided with the lower plate 15 of valve body 1
Cooling duct 153 is connected and constituted with delivery port 152, and cooling duct 153 is located inside lower plate 15, during evacuated die-casting process, vacuum
Valve is at the working environment of high temperature, vacuum valve is carried out timely cooling treatment can increase vacuum valve service life and
Maintenance period.
Preferably, with reference to Fig. 8, valve body 1 is provided with fixed screw 8, and be fixed on for valve body 1 after passing through valve body 1 by fixed screw 8
The position of required installation, fixed screw 8 is provided with buffer spring 81, and the two ends of buffer spring 81 recline valve body 1 and fixed spiral shell respectively
The end of silk 8, vacuum valve is often subject to larger impulsive force during evacuated die-casting process, and buffer spring 81 can lay down big portion
Divide impulsive force, vacuum valve is not damaged because excessive by impulsive force.
Preferably, gas outlet 17 is provided with negative pressure source connecting tube 7, negative pressure source connecting tube 7 and is provided with and filtering (not shown)
Net, often with debris such as flying chips in pumping process, screen pack can filter out these debris to vacuum valve, prevent debris from flying
To in negative pressure source.
Certainly, the invention is not limited in above-mentioned implementation method, those of ordinary skill in the art are without prejudice to the present invention
Equivalent variations or replacement can be also made on the premise of spirit, these equivalent modifications or replacement are all contained in the application claim
In limited range.
Claims (10)
1. Pneumatic vacuum valve, it is characterised in that：Including valve body（1）, the valve body（1）It is provided with air inlet and negative pressure can be connected
The gas outlet in source, the air inlet is connected with gas outlet and constitutes bleed-off passage（11）, the valve body（1）Inside it is provided with logical with pumping
Road（11）The switching channels of connection（12）, the switching channels（12）Inside it is provided with valve element（2）With piston（3）, the piston（3）
With switching channels under gas-powered（12）Wall slide be connected, the valve element（2）It is inserted into piston（3）End, the pumping
Passage（11）Interior and switching channels（12）Intersection location is provided with control passage（111）, the valve element（2）Switch portion is provided with, institute
State switch portion and be in bleed-off passage（11）With switching channels（12）Intersection location, switch portion is in valve element（2）Controlled in sliding process
Control passage（111）Conducting is blocked, so that turn on or isolate air inlet and gas outlet, the valve element（2）Being provided with can be every
From piston（3）With bleed-off passage（11）Isolation part（22）.
2. Pneumatic vacuum valve according to claim 1, it is characterised in that：The piston（3）Including the piston portion being fixedly linked
（31）With connecting portion（32）, the piston portion（31）With switching channels（12）Wall slide be connected, the piston portion（31）With open
Close passage（12）Wall be tightly connected, the valve element（2）It is inserted into connecting portion（32）On.
3. Pneumatic vacuum valve according to claim 2, it is characterised in that：The valve body（1）It is provided with the first inlet channel
（61）With the second inlet channel（62）, first inlet channel（61）With the second inlet channel（62）Respectively with switching channels
（12）Connection, first inlet channel（61）With the second inlet channel（62）Piston portion is passed to respectively（31）Two ends.
4. Pneumatic vacuum valve according to claim 2, it is characterised in that：The switching channels（12）Inside it is provided with seal cover board
（5）, the seal cover board（5）It is provided with recess, the connecting portion（32）With seal cover board（5）Slide and be connected, the connecting portion
（32）Side wall be tightly connected with the wall of recess, the wall of the recess is provided with dust ring（51）With sealing ring（52）.
5. Pneumatic vacuum valve according to claim 2, it is characterised in that：The switch portion（21）In closure control passage
（111）When and control passage（111）Wall by inclined-plane coordinate.
6. Pneumatic vacuum valve according to claim 5, it is characterised in that：The switching channels（12）Upper and bleed-off passage（11）
Intersection location is provided with valve element department set（4）, the valve element（2）It is slidably connected at valve element department set（4）It is interior, the control passage（111）
It is located at valve element department set（4）It is interior.
7. the Pneumatic vacuum valve according to any one of claim 1 to 6, it is characterised in that：The valve body（1）On be additionally provided with the 3rd
Inlet channel, the 3rd inlet channel and bleed-off passage（11）Connection.
8. the Pneumatic vacuum valve according to any one of claim 1 to 6, it is characterised in that：The valve body（1）On be additionally provided with into water
Mouthful（151）With delivery port（152）, the water inlet（151）With delivery port（152）Connect and constitute cooling duct（153）.
9. the Pneumatic vacuum valve according to any one of claim 1 to 6, it is characterised in that：The valve body（1）It is provided with fixed spiral shell
Silk, the fixed screw is provided with buffer spring, and the buffer spring two ends recline valve body respectively（1）With the end of fixed screw
Portion.
10. the Pneumatic vacuum valve according to any one of claim 1 to 6, it is characterised in that：The gas outlet is provided with negative pressure source
Connecting tube（7）, the negative pressure source connecting tube（7）Inside it is provided with screen pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710100518.6A CN106704619A (en) | 2017-02-23 | 2017-02-23 | Pneumatic vacuum valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710100518.6A CN106704619A (en) | 2017-02-23 | 2017-02-23 | Pneumatic vacuum valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106704619A true CN106704619A (en) | 2017-05-24 |
Family
ID=58916958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710100518.6A Pending CN106704619A (en) | 2017-02-23 | 2017-02-23 | Pneumatic vacuum valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106704619A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682562A (en) * | 2020-12-31 | 2021-04-20 | 重庆磐恒阀门有限公司 | Gas pressure control gas cut-off valve |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1095000A (en) * | 1993-02-02 | 1994-11-16 | 丰达雷斯，F.霍德勒有限公司 | A kind of valving that is used for venting diecasting moulds |
| JP2004322177A (en) * | 2003-04-25 | 2004-11-18 | Toyota Motor Corp | Valve device and vacuum die casting apparatus |
| CN201061824Y (en) * | 2007-06-21 | 2008-05-21 | 武汉工程大学 | Vacuum break valve for high-vacuum die casting |
| US20140102658A1 (en) * | 2011-06-09 | 2014-04-17 | V.D.S. Vacuum Diecasting Service S.A. | Suction valve device for discharging gas from a mould |
| CN204524225U (en) * | 2015-04-22 | 2015-08-05 | 美诺精密压铸(上海)有限公司 | Discharge type cored structure and evacuated die-casting process system |
| CN104907523A (en) * | 2015-04-22 | 2015-09-16 | 美诺精密压铸(上海)有限公司 | Exhaust core structure and vacuum die-casting system |
| CN205013815U (en) * | 2015-09-11 | 2016-02-03 | 宁波市北仑赛维达机械有限公司 | Last vacuum bleeder valve of die casting die |
| CN205096509U (en) * | 2015-09-17 | 2016-03-23 | 菲斯达精密工业部件（苏州）有限公司 | Automatic clearance mold insert hole die casting die |
| CN105697797A (en) * | 2016-03-18 | 2016-06-22 | 重庆瑞通实业有限公司 | Control valve for vacuumizing type die-casting die |
| CN205519570U (en) * | 2016-03-18 | 2016-08-31 | 重庆瑞通实业有限公司 | Die mould evacuating plate structure |
| CN106180630A (en) * | 2014-11-07 | 2016-12-07 | 方达雷克斯公司 | Die casting evacuation valve assembly |
| CN206539723U (en) * | 2017-02-23 | 2017-10-03 | 广州市型腔模具制造有限公司 | Pneumatic vacuum valve |
-
2017
- 2017-02-23 CN CN201710100518.6A patent/CN106704619A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1095000A (en) * | 1993-02-02 | 1994-11-16 | 丰达雷斯，F.霍德勒有限公司 | A kind of valving that is used for venting diecasting moulds |
| JP2004322177A (en) * | 2003-04-25 | 2004-11-18 | Toyota Motor Corp | Valve device and vacuum die casting apparatus |
| CN201061824Y (en) * | 2007-06-21 | 2008-05-21 | 武汉工程大学 | Vacuum break valve for high-vacuum die casting |
| US20140102658A1 (en) * | 2011-06-09 | 2014-04-17 | V.D.S. Vacuum Diecasting Service S.A. | Suction valve device for discharging gas from a mould |
| CN106180630A (en) * | 2014-11-07 | 2016-12-07 | 方达雷克斯公司 | Die casting evacuation valve assembly |
| CN204524225U (en) * | 2015-04-22 | 2015-08-05 | 美诺精密压铸(上海)有限公司 | Discharge type cored structure and evacuated die-casting process system |
| CN104907523A (en) * | 2015-04-22 | 2015-09-16 | 美诺精密压铸(上海)有限公司 | Exhaust core structure and vacuum die-casting system |
| CN205013815U (en) * | 2015-09-11 | 2016-02-03 | 宁波市北仑赛维达机械有限公司 | Last vacuum bleeder valve of die casting die |
| CN205096509U (en) * | 2015-09-17 | 2016-03-23 | 菲斯达精密工业部件（苏州）有限公司 | Automatic clearance mold insert hole die casting die |
| CN105697797A (en) * | 2016-03-18 | 2016-06-22 | 重庆瑞通实业有限公司 | Control valve for vacuumizing type die-casting die |
| CN205519570U (en) * | 2016-03-18 | 2016-08-31 | 重庆瑞通实业有限公司 | Die mould evacuating plate structure |
| CN206539723U (en) * | 2017-02-23 | 2017-10-03 | 广州市型腔模具制造有限公司 | Pneumatic vacuum valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112682562A (en) * | 2020-12-31 | 2021-04-20 | 重庆磐恒阀门有限公司 | Gas pressure control gas cut-off valve |
| CN112682562B (en) * | 2020-12-31 | 2022-09-30 | 重庆磐恒阀门有限公司 | Gas pressure control gas cut-off valve |
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Application publication date: 20170524 |