CN204194750U - Vacuum valve and evacuated die-casting process system - Google Patents
Vacuum valve and evacuated die-casting process system Download PDFInfo
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- CN204194750U CN204194750U CN201420567993.6U CN201420567993U CN204194750U CN 204194750 U CN204194750 U CN 204194750U CN 201420567993 U CN201420567993 U CN 201420567993U CN 204194750 U CN204194750 U CN 204194750U
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Abstract
The utility model provides a kind of vacuum valve and evacuated die-casting process system, described vacuum valve comprises the valve body with import and outlet and the spool that can be arranged on moving around in the valve pocket of this valve body, described spool has open position and the closed position that described import and described outlet are ended mutually that described import and outlet are interconnected within the scope of its shift motion, described valve body is provided with locking piece, described spool is provided with groove, this locking piece can be inserted in described groove to lock described spool under the state that described spool is in described open position, and described spool can leave described open position overcoming the latching force of described locking piece under the axial force effect of this spool.Vacuum valve described in the utility model has the high advantage of the simple and reliable property of structure.
Description
Technical field
The utility model relates to a kind of valve, particularly a kind of vacuum valve and evacuated die-casting process system.
Background technology
In casting technique, vacuum pressing and casting is the important method of the mechanical property that can improve foundry goods, extract out by the air in die casting die cavity, make molten metal filling die cavity under vacuum conditions, thus eliminate or reduce the pore of inside die-casting part, improve mechanical property and the surface quality of foundry goods.
Wherein, the operation principle of mechanical vacuum valve is that the inertial impact force that utilizes molten metal to flow or external force make spool close mostly.Such as, existing vacuum valve is by being inserted into spool internal locking spool by the latch be arranged in valve body and making vacuum valve remain in open mode, at the end of die-castingmold filling, the impulsive force of molten metal clashes into the spool of vacuum valve, now, the impulse force suffered by spool is greater than the coupling mechanism force of steel ball locking spool, and latch departs from spool makes spool rollback, make vacuum valve be in closed condition, thus avoid molten metal to enter into vacuum system.But the vacuum valve structure of this structure is complicated, stop pin assemblies is fragile, need integral demounting vacuum valve to change when providing the spring of spool return power easily break off relations and keep in repair.
Therefore, need to provide the high vacuum valve of the simple and reliable property of a kind of structure to be the problem needing in prior art to solve.
Utility model content
In view of this, problem to be solved in the utility model proposes the high vacuum valve of the simple and reliable property of a kind of structure.
For achieving the above object, a kind of vacuum valve is provided according to one side of the present utility model, this vacuum valve comprises the valve body with import and outlet and the spool that can be arranged on moving around in the valve pocket of this valve body, described spool has open position and the closed position that described import and described outlet are ended mutually that described import and outlet are interconnected within the scope of its shift motion, described valve body is provided with locking piece, described spool is provided with groove, this locking piece can be inserted in described groove to lock described spool under the state that described spool is in described open position, and described spool can leave described open position overcoming the latching force of described locking piece under the axial force effect of this spool.
Preferably, described locking piece is springy locking member, this springy locking member comprises sticking department and the elastic portion for applying elastic force to this sticking department, can be inserted in described groove under the effect of described elastic portion under the state that described sticking department is in described open position at described spool, and this spool can drive described sticking department to overcome the elastic force of described elastic portion by the inner surface of described groove under described External Force Acting, departs from described groove to make described sticking department.
Specifically selectively, described sticking department is locking ball, and described elastic portion is spring, and described groove is the ball groove coordinated with described sticking department, and this ball grooved ring is formed as annular ball groove around the outer peripheral face of described spool.
Preferably, described springy locking member is ball top, this ball top comprises the installation sleeve of hollow, described locking ball and described spring, described interlock ball and spring is arranged in described installation sleeve, and a part for described locking ball is protruded from the openend of described installation sleeve under the effect of described spring, described valve body is formed with patchhole, and described installation sleeve to be arranged in described patchhole and to make the openend of this installation sleeve towards described valve inner.
Preferably, back-moving spring one end of described spool being applied to Flexible Reset power is installed in described valve body, the direction of described Flexible Reset power makes described spool have trend from from described open position to the movement of described closed position, wherein in described open position, described spool is not enough to overcome the latching force of described locking piece and leaves described open position under the effect of Flexible Reset power being only subject to described back-moving spring.
In addition, preferably, described one end corresponding to described spool of described valve body is formed with back-moving spring installation cavity, this back-moving spring installation cavity is formed as shoulder hole, this shoulder hole comprises the second chamber being greater than described first chamber near first chamber of described one end of described spool and aperture, and the aperture in described first chamber be greater than described valve pocket with the aperture of the part of described one end matching ends of described spool, thus make to be formed with First terrace and second step face respectively in described back-moving spring installation cavity, described one end of described spool is connected with fixed block by connection shaft, described back-moving spring is sleeved on described connection shaft, one end resiliency supported of wherein said back-moving spring is on described First terrace, other end resiliency supported is on described fixed block, wherein, in described open position, described fixed block abuts on described second step face, to limit the open position of described spool, in described closed position, described fixed block stretches out the openend in described second chamber.
Also can be preferably, the other end end of described spool is formed with conical seal, the described import of described valve body is formed as tapered opening, and in described closed position, described conical seal and described tapered opening form conical surface seal and mutually end to make described import and described outlet.
In addition, preferably, described valve body is provided with exhaust contiguous block, this exhaust contiguous block is provided with for connect blast pipe and with the nipple orifice of described outlet, be formed with clearance space between the inner peripheral surface of the part between described import and outlet of described valve pocket and the outer peripheral face of described spool, described nipple orifice is communicated with this clearance space, wherein in described open position, described conical seal and described tapered opening are separated from each other, described clearance space and described inlet communication; In described closed position, described conical seal and described tapered opening form conical surface seal, thus described clearance space and described import end.
In addition, a kind of evacuated die-casting process system is also provided according to another aspect of the present utility model, comprise vacuum die-casting mould, this evacuated die-casting process Operation system setting has vacuum valve as above, wherein, described outlet is connected to vavuum pump via blast pipe, and the mold cavity that the one end at the import place of described valve body can extend in described vacuum die-casting mould is interior to vacuumize.
Preferably, described evacuated die-casting process system also comprises: retractable driving device, this retractable driving device is connected to the valve body of described vacuum valve, extracts this vacuum valve being driven to stretch in described vacuum die-casting mould or in this vacuum die-casting mould by this retractable driving device; And pulling block, this pulling block is arranged on outside the other end relative with described one end of described valve body, wherein be pulled out described vacuum die-casting mould and towards in the process of described pulling block movement at described vacuum valve, described pulling block can apply active force to described spool move to described open position to promote described spool.
Relative to prior art, vacuum valve described in the utility model has following advantage, namely spool under the state of open position by locking spool in the groove that the locking piece be arranged on valve body is inserted into spool, spool is made to remain in open mode, and the latching force that can overcome locking piece under spool is subject to axial force effect makes locking piece depart from the groove of spool, thus making spool leave open position, vacuum valve as above has the high advantage of the simple and reliable property of structure.
Other features and advantages of the utility model are described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the sectional view of the vacuum valve described in the utility model embodiment;
Fig. 2 is the top view of the vacuum valve described in the utility model embodiment;
Fig. 3 is the structure chart on the ball top of the vacuum valve described in the utility model embodiment;
Fig. 4 is the stereogram of the valve body of the vacuum valve described in the utility model embodiment;
Fig. 5 is the top view of Fig. 4;
Fig. 6 is the sectional view along A-A line in Fig. 5;
Fig. 7 is the sectional view along B-B line in Fig. 5;
Fig. 8 is the structure chart of the spool of the vacuum valve described in the utility model embodiment;
Fig. 9 is the sectional view along A-A line in Fig. 8;
Figure 10 is the sectional view of the fixed block of the vacuum valve described in the utility model embodiment;
Figure 11 is the structure chart of the exhaust contiguous block of the vacuum valve described in the utility model embodiment;
Figure 12 is the structure chart of the pulling block of the evacuated die-casting process system described in the utility model embodiment;
Figure 13 is the sectional view of the open mode of the vacuum valve described in the utility model embodiment;
Figure 14 is the sectional view of the closed condition of the vacuum valve described in the utility model embodiment.
Description of reference numerals:
1 import 2 exports
3 valve body 4 valve pockets
5 spool 6 grooves
7 locking ball 8 springs
9 ball top 10 installation sleeves
11 patchhole 12 back-moving springs
13 first chamber, chambeies 14 second
15 First terrace 16 second step faces
17 fixed block 18 conical seal
19 exhaust contiguous block 20 blast pipes
21 nipple orifice 22 pulling blocks
23 flange part 24 fixed block mating holes
25 spool mating holes 26 service portions
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the utility model and the feature in embodiment can combine mutually.
Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
According to an aspect of the present utility model, the utility model provides a kind of vacuum valve, as shown in Fig. 1 to Figure 14, this vacuum valve comprises the valve body 3 with import 1 and outlet 2 and the spool 5 that can be arranged on moving around in the valve pocket 4 of this valve body 3, spool 5 has the closed position making import 1 and export 2 open positions be interconnected and import 1 and outlet 2 are ended mutually within the scope of its shift motion, valve body 3 is provided with locking piece, spool 5 is provided with groove 6, this locking piece can be inserted in groove 6 with locking spool 5 under the state that spool 5 is in an open position, and spool 5 can leave open position overcoming the latching force of locking piece under the axial force effect of this spool 5.
Namely, the open position that vacuum valve is communicated with outlet 2 at the opening 1 of valve body 3, in the groove 6 that the locking piece be arranged on valve body 3 is inserted into spool 5, locking spool 5 makes it remain in open mode, thus make air flow to outlet 2 from import 1, in addition, the latching force that can overcome locking piece when the spool 5 of vacuum valve is subject to the axial force effect along this spool 5 makes locking piece depart from the groove 6 of spool 5, thus makes spool 5 leave open position and can be in the opening 1 of valve body 3 and the closed positions of outlet 2 cut-off.Vacuum valve as above has the high advantage of the simple and reliable property of structure.
Preferably, described locking piece is springy locking member, this springy locking member comprises sticking department and the elastic portion for applying elastic force to this sticking department, sticking department can be inserted in groove 6 under the state that spool 5 is in an open position under the effect of elastic portion, and this spool 5 can drive sticking department to overcome the elastic force of elastic portion by the inner surface of groove 6 under external force, departs from groove 6 to make sticking department.When spool 5 moves to open position from closed position, the sticking department of springy locking member is by being inserted in the groove 6 of spool 5 under the effect of the elastic portion to this sticking department applying active force, thus locking spool 5 makes it remain in open mode, when applying the axial force along spool 5 to spool 5, the inner surface of groove 6 drives sticking department to overcome the elastic force of the elastic portion this sticking department being applied to active force, thus make sticking department depart from groove 6, make spool 5 leave open position and can be in the closed position.
Selectively, described sticking department is locking ball 7, and described elastic portion is spring 8, and described groove 6 is the ball groove coordinated with sticking department, and this ball grooved ring is formed as annular ball groove around the outer peripheral face of spool 5.Such as, this annular ball groove can coordinate with the outer peripheral face of the half part of locking ball 7.But the utility model is not limited thereto, described sticking department also can be formed as hemispherical, or taper shape etc., insert as long as can realize described sticking department or depart from groove 6, sticking department and groove 6 also can be formed as other a kind of shapes.
Specifically selectively, described springy locking member is ball top 9, this ball top 9 comprises installation sleeve 10, the locking ball 7 and spring 8 of hollow, locking ball 7 and spring 8 are arranged in installation sleeve 10, and a part for locking ball 7 is protruded from the openend of installation sleeve 10 under the effect of spring 8, valve body 3 is formed with patchhole 11, installation sleeve 10 to be arranged in patchhole 11 and to make the openend of this installation sleeve 10 inner towards valve body 3.
As Fig. 3 to Fig. 5, shown in Fig. 7, in the patchhole 11 that installation sleeve 10 is arranged on valve body 3 and locking ball 7 namely to lock ball 7 towards the inside of valve body 3 relative with the outer peripheral face of spool 5, spool 5 is in closed position, locking ball 7 is retracted in the openend of valve body 3 by the compression stress of spring 8 and contacts with the outer peripheral face of spool 5, spool 5 is in open position, the locking ball 7 of retracting in the openend of valve body 3 stretches out in the openend of valve body 3 by the elastic force of spring 8 and is inserted in the groove 6 of spool 5, thus by locking ball 7 and the coordinating of groove 6 of spool 5, locking spool 5 makes it remain in open mode.But the utility model is not limited thereto, also can carry out locking spool 5 by the springy locking member of other structures, such as, springy locking member can be formed as the spring 8 and the locking ball 7 that are directly arranged at valve body 3 inside.
Preferably, as shown in Figure 1, the back-moving spring 12 one end of spool 5 being applied to Flexible Reset power is installed in described valve body 3, the direction of Flexible Reset power makes spool 5 have trend from from open position to closed position movement, wherein in open position, spool 5 is not enough to overcome the latching force of locking piece and leaves open position under the effect of Flexible Reset power being only subject to back-moving spring 12.Namely, the other end of spool 5 is being subject to along under the active force of the axial direction of spool 5, the Flexible Reset power sum of this active force and back-moving spring 12 can overcome the latching force of locking piece, and namely locking piece departs from the groove 6 of spool 5 and makes spool 5 leave open position and can be in closed condition.
In addition, preferably, as Fig. 1, shown in Fig. 6 and Figure 10, one end corresponding to spool 5 of described valve body 3 is formed with back-moving spring installation cavity, this back-moving spring installation cavity is formed as shoulder hole, this shoulder hole comprises the second chamber 14 being greater than the first chamber 13 near first chamber 13 of one end of spool 5 and aperture, and the aperture in the first chamber 13 be greater than valve pocket 4 with the aperture of the part of one end matching ends of spool 5, thus make in back-moving spring installation cavity, to be formed with First terrace 15 and second step face 16 respectively, one end of spool 5 is connected with fixed block 17 by connection shaft, back-moving spring 12 is sleeved on connection shaft, wherein one end resiliency supported of back-moving spring 12 is on First terrace 15, other end resiliency supported is on fixed block 17, wherein, in open position, fixed block 17 abuts on second step face 16, to limit the open position of spool 5, in closed position, fixed block 17 stretches out the openend in the second chamber 14.
Namely, as Fig. 1, shown in Fig. 9 and Figure 10, by connection shaft being inserted in spool mating holes 25 and fixed block mating holes 24, one end of fixed block 17 and spool 5 is connected and fixed, in back-moving spring installation cavity, accommodate back-moving spring 12 and this back-moving spring 12 between fixed block 17 and spool 5, one end resiliency supported of back-moving spring 12 is on First terrace 15, other end resiliency supported is on fixed block 17, wherein fixed block 17 can be contained in the second chamber 14, in the open position of spool 5, fixed block 17 to be contained in the second chamber 14 and to abut to the open position that second step face 16 can limit spool 5, in the closed position of spool 5, a part for fixed block 17 stretches out in the openend in the second chamber 14.But the utility model is not limited thereto, fixed block 17 and spool 5 can be formed as one, or one end that fixed block 17 coordinates with spool 5 can be formed with bolt arrangement, corresponding one end of spool 5 is formed with nut structure etc.
Preferably, as shown in Fig. 6, Fig. 8 and Fig. 9, the other end end of described spool 5 is formed with conical seal 18, and the import 1 of valve body 3 is formed as tapered opening, in closed position, conical seal 18 and tapered opening form conical surface seal and mutually end with outlet 2 to make import 1.Forming conical surface seal by the tapered opening of the conical seal 18 of spool 5 and valve body 3 being coordinated, making the import 1 of valve body 3 and outlet 2 mutually end and be positioned at closed position, thus there is the effect of the import 1 of effective sealing valve body 3.But the utility model is not limited thereto, as long as can play the effect of the opening of sealed valve body 3, spool 5 and valve body 3 can be formed as other structures, such as, the other end end of spool 5 can be formed with taper seat sealing, and the import of valve body 3 can be formed as taper seat opening.
In addition, preferably, as shown in figure 11, described valve body 3 being provided with exhaust contiguous block 19, this exhaust contiguous block 19 being provided with for connecting blast pipe 20 and the nipple orifice 21 be communicated with outlet 2, between the inner peripheral surface of the part between import 1 and outlet 2 of valve pocket 4 and the outer peripheral face of spool 5, be formed with clearance space, nipple orifice 21 is communicated with this clearance space, wherein in open position, conical seal 18 and tapered opening are separated from each other, and clearance space is communicated with import 1; In closed position, conical seal 18 and tapered opening form conical surface seal, thus clearance space and import 1 end.As shown in Fig. 1 and Figure 11, when blast pipe 20 is connected with valve body 3 by exhaust contiguous block 19, in open position, air can be discharged to blast pipe 20 by import 1, clearance space, outlet 2 and nipple orifice 21 successively, in closed position, by conical seal 18 and the conical surface seal of tapered opening, the opening 1 of valve body 3 is ended mutually with clearance space.At this, the utility model is not limited thereto, can the tube wall between the inner peripheral surface of valve body 3 and outer peripheral face be arranged with opening 1 with export 2 passages be communicated with to replace described clearance space.
In addition, according to another aspect of the present utility model, the utility model also provides a kind of evacuated die-casting process system, comprise vacuum die-casting mould, this evacuated die-casting process Operation system setting has vacuum valve as above, wherein, outlet 2 is connected to vavuum pump via blast pipe 20, and the mold cavity that the one end at import 1 place of valve body 3 can extend in vacuum die-casting mould is interior to vacuumize.Air in mold cavity in vacuum die-casting mould can be drawn to outside by the import of valve body 31 and outlet 2 via vavuum pump successively by this vacuum valve.
Preferably, as shown in figure 12, described evacuated die-casting process system also comprises: retractable driving device, and this retractable driving device is connected to the valve body 3 of vacuum valve, extracts this vacuum valve being driven to stretch in vacuum die-casting mould or in this vacuum die-casting mould by this retractable driving device; And pulling block 22, this pulling block 22 is arranged on outside the other end relative with one end of valve body 3, wherein be pulled out vacuum die-casting mould and towards in the process of pulling block 22 movement, pulling block 22 can apply active force to spool 5 and move to open position to promote spool 5 at vacuum valve.Below, the course of work of evacuated die-casting process system is described.
When the mold cavity in vacuum mold system being vacuumized before die-castingmold filling, as shown in figure 13, spool 5 extend in mold cavity and is in open mode, now, by in the groove 6 that the locking piece on valve body 3 is inserted into spool 5, locking spool 5 makes it remain in open mode, thus by vavuum pump, the air in mold cavity can be expelled to outside by the opening 1 of the valve body 3 shown in the direction of arrow in such as Figure 13, outlet 2 and blast pipe 20 via vavuum pump successively, at this, back-moving spring 12 is compressed;
Under mold cavity is in vacuum state, in mold cavity, injects metal liquid carries out die-castingmold filling, be full of mold cavity when metal liquid and flow into vacuum valve place by die venting groove, metal liquid under high speed and high pressure state with the ends contact be inserted in mold cavity of spool 5, now as shown in figure 14, spool 5 is subject to the impulsive force as the metal liquid in the direction of arrow in Figure 14, the Flexible Reset power sum of this impulsive force and back-moving spring 12 is greater than the latching force of locking piece, thus spool 5 can be promoted be located at closed position, metal liquid is made to enter pumped vacuum systems, start afterwards to carry out die casting,
After completing die casting, vacuum valve is extracted out towards the direction of pulling block 22 under passing through the effect of the retractable driving device be connected at the flange part 23 of the valve body 3 with this vacuum valve, now fixed block 17 contacts with the service portion 26 of pulling block 22, makes service portion 26 pairs of spools 5 of pulling block 22 apply active force and promote spool 5 to move to open position;
Mould spraying terminates, and vacuum valve again extend in vacuum mold under retractable driving device effect, thus enters next circulation.
By structure as above, namely spool 5 under the state of open position by locking spool 5 in the groove 6 that the locking ball 7 on the ball top 9 be arranged on valve body 3 is inserted into spool 5, spool 5 is made to remain in open mode, and the latching force being subject under axial force effect can together overcoming ball top 9 with the Flexible Reset power of back-moving spring 12 when spool 5 makes locking piece depart from the groove 6 of spool 5, thus making spool 5 leave open position, vacuum valve of the present utility model replaces stop pin assembly by ball top 9 and has easy-to-mount effect.In addition, can promote to be positioned at the spool 5 of closed position by pulling block 22 and make this spool 5 be in open mode, thus not needing to arrange in addition and spool 5 is resetted namely be positioned at the device of open position.In addition, can effectively reduce the pore of pack alloy interiors of products by vacuum valve as above and there is the high advantage of reliability, and vacuum valve structure of the present utility model simply convenient for maintaining.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a vacuum valve, this vacuum valve comprises the valve body (3) with import (1) and outlet (2) and the spool (5) that can be arranged on moving around in the valve pocket (4) of this valve body (3), described spool (5) has the open position that described import (1) and outlet (2) are interconnected and the closed position that described import (1) and described outlet (2) are ended mutually within the scope of its shift motion, it is characterized in that, (3) are provided with locking piece to described valve body, described spool (5) is provided with groove (6), this locking piece can be inserted in described groove (6) to lock described spool (5) under the state that described spool (5) is in described open position, and described spool (5) can overcome the latching force of described locking piece and leave described open position under the axial force effect along this spool (5).
2. vacuum valve according to claim 1, it is characterized in that, described locking piece is springy locking member, this springy locking member comprises sticking department and the elastic portion for applying elastic force to this sticking department, can be inserted under the effect of described elastic portion in described groove (6) under the state that described sticking department is in described open position at described spool (5), and this spool (5) can drive described sticking department to overcome the elastic force of described elastic portion by the inner surface of described groove (6) under described External Force Acting, described groove (6) is departed to make described sticking department.
3. vacuum valve according to claim 2, it is characterized in that, described sticking department is locking ball (7), described elastic portion is spring (8), described groove (6) is the ball groove coordinated with described sticking department, and this ball grooved ring is formed as annular ball groove around the outer peripheral face of described spool (5).
4. vacuum valve according to claim 3, it is characterized in that, described springy locking member is ball top (9), this ball top (9) comprises the installation sleeve (10) of hollow, described locking ball (7) and described spring (8), described locking ball (7) and spring (8) are arranged in described installation sleeve (10), and a part for described locking ball (7) is protruded from the openend of described installation sleeve (10) under the effect of described spring (8), described valve body (3) is formed with patchhole (11), described installation sleeve (10) to be arranged in described patchhole (11) and to make the openend of this installation sleeve (10) inner towards described valve body (3).
5. vacuum valve according to any one of claim 1 to 4, it is characterized in that, the back-moving spring (12) one end of described spool (5) being applied to Flexible Reset power is installed in described valve body (3), the direction of described Flexible Reset power makes described spool (5) have trend from from described open position to the movement of described closed position, wherein in described open position, described spool (5) is not enough to overcome the latching force of described locking piece and leaves described open position under the effect of Flexible Reset power being only subject to described back-moving spring (12).
6. vacuum valve according to claim 5, it is characterized in that, described one end corresponding to described spool (5) of described valve body (3) is formed with back-moving spring installation cavity, this back-moving spring installation cavity is formed as shoulder hole, this shoulder hole comprises the second chamber (14) being greater than described first chamber (13) near first chamber (13) of described one end of described spool (5) and aperture, and the aperture of described first chamber (13) be greater than described valve pocket (4) with the aperture of the part of described one end matching ends of described spool (5), thus make in described back-moving spring installation cavity, to be formed with First terrace (15) and second step face (16) respectively, described one end of described spool (5) is connected with fixed block (17) by connection shaft, described back-moving spring (12) is sleeved on described connection shaft, one end resiliency supported of wherein said back-moving spring (12) is on described First terrace (15), other end resiliency supported is on described fixed block (17), wherein, in described open position, described fixed block (17) abuts on described second step face (16), to limit the open position of described spool (5), in described closed position, described fixed block (17) stretches out the openend of described second chamber (14).
7. vacuum valve according to claim 5, it is characterized in that, the other end end of described spool (5) is formed with conical seal (18), the described import (1) of described valve body (3) is formed as tapered opening, in described closed position, described conical seal (18) and described tapered opening form conical surface seal and mutually end to make described import (1) and described outlet (2).
8. vacuum valve according to claim 7, it is characterized in that, described valve body (3) is provided with exhaust contiguous block (19), this exhaust contiguous block (19) is provided with for connecting blast pipe (20) and the nipple orifice (21) be communicated with described outlet (2), clearance space is formed between the inner peripheral surface being positioned at the part between described import (1) and outlet (2) of described valve pocket (4) and the outer peripheral face of described spool (5), described nipple orifice (21) is communicated with this clearance space, wherein in described open position, described conical seal (18) and described tapered opening are separated from each other, described clearance space is communicated with described import (1), in described closed position, described conical seal (18) and described tapered opening form conical surface seal, thus described clearance space and described import (1) end.
9. an evacuated die-casting process system, comprise vacuum die-casting mould, it is characterized in that, vacuum valve according to any one of the with good grounds claim 1-8 of this evacuated die-casting process Operation system setting, wherein, described outlet (2) is connected to vavuum pump via blast pipe (20), and the mold cavity that the one end at import (1) place of described valve body (3) can extend in described vacuum die-casting mould is interior to vacuumize.
10. evacuated die-casting process system according to claim 9, is characterized in that, described evacuated die-casting process system also comprises:
Retractable driving device, this retractable driving device is connected to the valve body (3) of described vacuum valve, extracts this vacuum valve being driven to stretch in described vacuum die-casting mould or in this vacuum die-casting mould by this retractable driving device; And
Pulling block (22), this pulling block (22) is arranged on outside the other end relative with described one end of described valve body (3), wherein be pulled out described vacuum die-casting mould and towards in the process of described pulling block (22) movement at described vacuum valve, described pulling block (22) can apply active force to described spool (5) move to described open position to promote described spool (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420567993.6U CN204194750U (en) | 2014-09-29 | 2014-09-29 | Vacuum valve and evacuated die-casting process system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420567993.6U CN204194750U (en) | 2014-09-29 | 2014-09-29 | Vacuum valve and evacuated die-casting process system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104841906A (en) * | 2015-06-05 | 2015-08-19 | 芜湖舜富压铸制造有限公司 | Vacuum die casting system and vacuumizing method thereof |
| CN108311658A (en) * | 2018-02-08 | 2018-07-24 | 山东弗泽瑞金属科技有限公司 | Vacuum low speed pressure casting method |
| CN110756762A (en) * | 2018-07-25 | 2020-02-07 | 无锡朗贤轻量化科技股份有限公司 | Die casting die vacuum valve and vacuum die casting die |
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2014
- 2014-09-29 CN CN201420567993.6U patent/CN204194750U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104841906A (en) * | 2015-06-05 | 2015-08-19 | 芜湖舜富压铸制造有限公司 | Vacuum die casting system and vacuumizing method thereof |
| CN108311658A (en) * | 2018-02-08 | 2018-07-24 | 山东弗泽瑞金属科技有限公司 | Vacuum low speed pressure casting method |
| CN110756762A (en) * | 2018-07-25 | 2020-02-07 | 无锡朗贤轻量化科技股份有限公司 | Die casting die vacuum valve and vacuum die casting die |
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