CN206839107U - Secondary extrusion microdiecast mould - Google Patents
Secondary extrusion microdiecast mould Download PDFInfo
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- CN206839107U CN206839107U CN201720401921.8U CN201720401921U CN206839107U CN 206839107 U CN206839107 U CN 206839107U CN 201720401921 U CN201720401921 U CN 201720401921U CN 206839107 U CN206839107 U CN 206839107U
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- cover half
- fixed mold
- mold core
- pressure ram
- half frame
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Abstract
The utility model discloses a kind of secondary extrusion microdiecast mould; including dynamic model mechanism and fixed die mechanism; dynamic model mechanism includes mavable module core and dynamic model frame; fixed die mechanism includes fixed mold core and cover half frame; mavable module core matches with fixed mold core; dynamic model frame matches with cover half frame; die cavity is formed between mavable module core and fixed mold core; shrinkage pool is offered on fixed mold core; shrinkage pool is placed in die cavity; pressurizing unit is installed, pressurizing unit includes being located in fixed mold core and the pressure ram on cover half frame and the drive mechanism for promoting pressure ram, and pressure ram is located in shrinkage pool on cover half frame.Shrinkage pool can be kept in part metals liquid, and then during cooling, when being cooled to half, because the thicker position inhomogeneous cooling of wall ratio is even, shrinkage cavity can be caused, therefore, molten metal in shrinkage pool is filled into inside by extrusion oil cylinder promotion pressure ram, allow it to be again filled with inside, and then reduce probability caused by shrinkage cavity, improve product quality.
Description
Technical field
A kind of auto parts and components tool of production is the utility model is related to, more particularly to a kind of secondary extrusion microdiecast mould.
Background technology
Mould be in industrial production being molded, being blow molded, extruding, die casting or obtain the methods of forging forming, smelting, punching press
The various moulds and instrument of required product.And during the parts production of automobile, because the parts of automobile are more multiple
It is miscellaneous, and many is all integral structure, therefore, is typically given birth in the production process of this auto parts and components using mould
Production processing.Notification number is that CN201519752U Chinese patent discloses a kind of V6 motor cylinder blocks die casting, by using dynamic
Mould, cover half and some sliding blocks form die cavity, and then cylinder body is carried out into die cast.
Although this mould can carry out cylinder body die cast, cylinder block itself structure it is more complicated, enter
And during cooling, the thin position of wall be present first cools down, and is cooled down behind the position of wall thickness, and the position then cooled down can be due to
Molten metal not enough causes to tighten, and then is likely to form shrinkage cavity or internal stress, influences product quality.
Utility model content
The purpose of this utility model is to provide a kind of accurate pressure of secondary extrusion that casting internal stress is removed by secondary die casting
Mold.
Above-mentioned technical purpose of the present utility model technical scheme is that：
A kind of secondary extrusion microdiecast mould, including dynamic model mechanism and fixed die mechanism, the dynamic model mechanism include mavable module core
With dynamic model frame, the fixed die mechanism includes fixed mold core and cover half frame, and the mavable module core matches with fixed mold core, the dynamic model frame with
Cover half frame matches, and die cavity is formed between the mavable module core and fixed mold core, shrinkage pool is offered on the fixed mold core, shrinkage pool is placed in type
Intracavitary, is provided with pressurizing unit on the cover half frame, and the pressurizing unit includes being located in squeezing on fixed mold core and cover half frame
Depression bar and the drive mechanism for promoting pressure ram, the pressure ram are located in shrinkage pool.
By using above-mentioned technical proposal, pressure ram is extruded shrinkage pool, so as to fill molten metal further
During cooling, the molten metal in shrinkage pool is subjected to die casting again, so as to fill the space that molten metal reduces in cooling, cast so as to allow
Part more enriches, and makes it internal dense, reduces the generation of internal stress.
The utility model is further arranged to：Through hole is offered on the fixed mold core, the through hole connects with shrinkage pool, described
It is provided with elongated hole on cover half frame, the pressure ram is through sequentially passing through elongated hole and through hole is entered in shrinkage pool.
The utility model is further arranged to：The pressure ram includes effect end and connection end, being arranged on the effect end
Have spring, the through hole is provided with reaming close to one end of elongated hole, and the spring is placed in reaming, and the spring respectively with
Fixed mold core and connection end contradict.
By using above-mentioned technical proposal, effect end is directly extruded, and passes through reaming and the setting of connection end, Ke Yifang
Just the placement of spring, allow spring that pressure ram can be allowed to be in returns state, so as to be in normal state to be extruded, and squeezing
It can be retracted after the completion of pressure.
The utility model is further arranged to：Detent mechanism is provided with the cover half frame, the detent mechanism includes fixed
Position plate and slip cap, the location-plate are fixed on cover half frame, and the slip cap is arranged on location-plate, the extrusion oil cylinder
On slip cap, and the cylinder rod of extrusion oil cylinder is located in slip cap, and is contradicted with pressure ram.
By using above-mentioned technical proposal, slip cap can be to facilitating the installation of extrusion oil cylinder, and cylinder rod can be allowed to exist
Slide, will not misplace in slip cap.
The utility model is further arranged to：Circular hole is offered on the location-plate, the Circularhole diameter is more than extruding oil
The cylinder rod diameter of cylinder and it is less than pressure ram connection end diameter.
By using above-mentioned technical proposal, the circular hole of location-plate can allow pressure ram to be fixed, and will not exit, and cylinder rod energy
It is enough that pressure ram is extruded through circular hole.
The utility model is further arranged to：Some adjusting screw rods, the adjusting screw rod ring are installed on the cover half frame
Set around elongated hole, offer connecting hole on the location-plate, the adjusting screw rod passes through connecting hole, and is placed on adjusting screw rod
Location-plate both sides are arranged with locking nut.
By using above-mentioned technical proposal, the setting of adjusting screw rod and reduction nut can allow the position of location-plate to carry out
Regulation, so as to allow the position of pressure ram to be adjusted, can allow the end position of pressure ram to be adjusted to concordant with shrinkage pool
Situation.
The utility model is further arranged to：Vacuum tank, the vacuum tank are offered on mavable module core and the dynamic model frame
Connected with die cavity.
By using above-mentioned technical proposal, the setting of vacuum tank can be extracted the air in die cavity, so as to press
During casting, molten metal is not in resistance, and die casting is more convenient.
The utility model is further arranged to：Delay tank is provided with the vacuum tank, the delay tank offers opening,
The vacuum tank is connected with opening.
By using above-mentioned technical proposal, the impurity that the setting of delay tank can allow in die cavity is retained, so as to damage
The vaccum-pumping equipment being connected on vacuum tank.
In summary, the utility model has the advantages that：Shrinkage pool can be kept in part metals liquid, be entered
And during cooling, when being cooled to half, because the thicker position inhomogeneous cooling of wall ratio is even, shrinkage cavity can be caused, because
This, is filled into inside by the molten metal in shrinkage pool by extrusion oil cylinder promotion pressure ram, allows it to be again filled with inside, and then
Reduce probability caused by shrinkage cavity, improve product quality.
Brief description of the drawings
Fig. 1 is the three-dimensional structure diagram of the present embodiment；
Fig. 2 is the sectional view of the present embodiment；
Fig. 3 is the enlarged drawing at A in Fig. 2；
Fig. 4 is the structure chart of dynamic model frame and mavable module core；
Fig. 5 is the enlarged drawing at B in Fig. 4；
Fig. 6 is the structure chart of vacuum valve position.
In figure：01st, die cavity；1st, cover half frame；11st, fixed mold core；12nd, solid plate；13rd, pouring basin；14th, ingate；2nd, dynamic model
Frame；21st, mavable module core；22nd, moving platen；23rd, ejector retainner plate；24th, thimble；25th, slide bar；3rd, sliding block；4th, vacuum tank；41st, excessive structural；
42nd, into groove；43rd, outlet slot；44th, delay tank；45th, it is open；46th, breach；51st, vacuum valve；61st, shrinkage pool；62nd, pressure ram；
621st, end is acted on；622nd, connection end；63rd, through hole；64th, elongated hole；65th, reaming；66th, spring；67th, detent mechanism；671st, position
Plate；672nd, slip cap；673rd, adjusting screw rod；674th, locking nut；675th, connecting hole；676th, extrusion oil cylinder；677th, circular hole；7th, it is cold
But pipeline；71st, pressure piping；72nd, normal pressure pipeline.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
A kind of secondary extrusion microdiecast mould, it is mainly used in the extrusion process of full-sized car parts, such as Fig. 1 and Fig. 2 institutes
Show, including dynamic model frame 2 and cover half frame 1, mavable module core 21 and fixed mold core 11 are respectively provided with dynamic model frame 2 and cover half frame 1 are interior, it is dynamic
Die 21 and fixed mold core 11 match, and can form die cavity 01（Reference picture 3）, still, many times, because the side of casting is tied
Structure is more complicated, therefore sliding block 3 is provided between dynamic model frame 2 and cover half frame 1, and sliding block 3 is driven by oil cylinder, allows it to be
Enter line slip along dynamic model frame 2, and coordinated with mavable module core 21 and fixed mold core 11, form die cavity 01.Cover half frame 1 and dynamic model frame
Solid plate 12 and moving platen 22 are respectively arranged with 2, by solid plate 12 and moving platen 22 by mould installion on die casting machine,
It can be operated.Pouring basin 13 is set on cover half frame 1, meanwhile, ingate 14, pouring basin are set on fixed mold core 11
13 carry out corresponding sealing with the mouth that pours of die casting machine, so as to allow molten metal to enter pouring basin 13, while ingate 14 with
The correspondence of pouring basin 13, liquid metal is circulated into die cavity 01, so as to allow the full die cavity 01 of molten metal filling, then by mavable module core 21 with
And the cooling system on fixed mold core 11 is cooled down, and allows molten metal to be cooled and shaped, and ultimately forms casting.
As shown in Fig. 2 now, some tops are worn on dynamic model frame 2, it is necessary to be taken out to casting after casting is formed
Pin 24, thimble 24 eject through mavable module core 21 to casting.In order to make thimble 24 movable, in moving platen 22 and dynamic model frame
Ejector retainner plate 23 is set between 2, thimble 24 is arranged on ejector retainner plate 23, it is right through moving platen 22 by the cylinder rod on die casting machine
Ejector retainner plate 23 is contradicted, and reaches the purpose of driving ejector retainner plate 23, and by the ejection of thimble 24, casting is ejected into mavable module core 21,
Casting is removed from thimble 24 by manipulator again, completes whole press casting procedure.In moving platen 22, ejector retainner plate 23, dynamic model frame
2nd, mavable module core 21, solid plate 12, cover half frame 1 and fixed mold core 11 are when carrying out relative slide（Mainly moving platen 22, dynamic model frame
2nd, ejector retainner plate 23 and mavable module core 21 enter line slip towards cover half frame 1, solid plate 12 and the direction of fixed mold core 11）, in order to allow dynamic model
The cooperation of benevolence 21 and fixed mold core 11 is not in the situation of dislocation, in dynamic model frame 2, moving platen 22, cover half frame 1 and solid plate 12
Between slide bar 25 is set, allow dynamic model frame 2 and moving platen 22 to be not in dislocation when sliding by slide bar 25, prevent mavable module core
21 and fixed mold core 11 occur coordinate mistake and cause produce casting scrap.
As shown in Figures 2 and 3, during casting, the wall thickness of partial intersection position can be relatively thick, therefore,
Casting crossover location sets raised benefit to rush portion, and mould is provided with secondary extrusion structure in the position.Secondary extrusion structure bag
The shrinkage pool 61 being opened on fixed mold core 11 is included, the bottom of shrinkage pool 61 sets through hole 63, and pressure ram 62 is set in through hole 63.Through hole 63
Through fixed mold core 11, same through hole 63 is extended on cover half frame 1, sets elongated hole 64, it is logical that pressure ram 62 extends through hole 64
Crossing hydraulic oil cylinder driving, it is slided in through hole 63, and to the molten metal in shrinkage pool 61 when cooling down, and extruded, so as to reach
The filling of molten metal can be carried out into the cooling procedure for allowing casting crossover location, and then can be avoided due to interior caused by cooling
The generation of stress.
As shown in Figures 2 and 3, in order to make pressure ram 62 more convenient when in use, spring is arranged with pressure ram 62
66, and pressure ram 62 includes effect end 621 and connection end 622, effect end 621 matches with the diameter of through hole 63,66 sets of spring
On effect end 621, and spring 66 contradicts with connection end 622.Through hole 63 is provided with reaming 65, bullet by one end through elongated hole 64
Spring 66 is placed in reaming 65, and now, the diameter of elongated hole 64 is equal with the diameter of reaming 65.The diameter of reaming 65 is typically and connection end
The 622 identical setting of diameter, so as to allow pressure ram 62 to enter line slip.Reaming 65 can also be arranged on elongated hole 64, this
When elongated hole 64 diameter it is equal with through hole 63.
As shown in Figures 2 and 3, detent mechanism 67 is set on cover half frame 1, allows pressure ram 62 in pre-installation, Ke Yijin
Row positioning, so as to during follow-up use, conversion occur due to the position of pressure ram 62 and cause casting quality to go out
Existing problem.Detent mechanism 67 includes location-plate 671, and slip cap 672 is provided with location-plate 671, and extrusion oil cylinder 676, which is arranged on, to be slided
On dynamic set 672, and the cylinder rod of extrusion oil cylinder 676 is through in slip cap 672, is contradicted with the connection end 622 of pressure ram 62.
Circular hole 677 is offered on location-plate 671, the diameter of circular hole 677 is more than the cylinder rod diameter of extrusion oil cylinder 676 and connected less than pressure ram 62
Connect end diameter.At least three adjusting screw rods 673 are provided with cover half frame 1, adjusting screw rod 673 uniformly divides around the axis of elongated hole 64
Cloth, connecting hole 675 is provided with location-plate 671, location-plate 671 is fixed through connecting hole 675 for adjusting screw rod 673, fixed
The position both sides of plate 671 are provided with locking nut 674.
After molten metal is circulated into mould, allow molten metal can uniformly cool down can allow casting mass ratio compared with
It is good, and many times, some cooling pipes 7 opened up on mavable module core 21 or fixed mold core 11, pass through the water in cooling pipe 7
Heat is taken away, reaches the purpose of cooling.But many positions are because mavable module core 21 or fixed mold core 11 itself are than relatively thin, because
This, aperture is relatively fine, therefore the radiating effect in the position can compare it is poor.In order to solve the technical problem, such as Fig. 2 institutes
Show, cooling pipe 7 is divided for pressure piping 71 and normal pressure pipeline 72, wherein, set up booster pump on pressure piping 71（Do not regarded in figure
Go out）, flow at high speed is become by the water of pressure piping 71 by booster pump, and then more heat can be taken away within the unit interval
Amount, and then cool down uniform purpose.
As shown in Figure 4 and Figure 5, during slip casting, due to air in die cavity 01 be present, and the molten metal in high pressure is noted
After entering, partial air can be entered in liquid, so as to cause the air in liquid to have retention, at this moment casting can be caused stomata to be present
Situation so that poor product quality.In order to solve the above problems, vacuum valve 51 is installed on dynamic model, while in dynamic model（Dynamic model
Frame 2 and mavable module core 21）With cover half（Cover half frame 1 and fixed mold core 11）On be provided with vacuum tank 4, and two vacuum tanks 4 match.
In the end of vacuum tank 4 to being connected to a vacuum valve 51, a vavuum pump is connected to by vacuum valve 51（Not depending on going out in figure）, pass through vacuum
Pump provides negative pressure, then is detached the air in die cavity 01 by vacuum tank 4.So that negative pressure is formed in die cavity 01.In matched moulds
Afterwards, before solution is injected into die cavity 01 by die casting machine, vacuum valve 51 is placed in connected state, die cavity 01 in the presence of vavuum pump,
Air in die cavity 01 is detached, allows it to be in vacuum state.Metallic solution is injected into pouring on cast gate cover half in die casting machine
Mouthful when, now, vacuum valve 51 will be switched to closure state so that vavuum pump is not being vacuumized, due to inside die cavity 01
Be not in the extruding of air through being evacuated, therefore when injecting metal liquid, allow its injection more to enrich, reduce
The generation of stomata.
As shown in Figure 4 and Figure 5, during pumping, because mould needs by multiple die sinking in process of production
Repeatedly produced with matched moulds, all can be when casting such as be stripped at the operation in die cavity 01 during being produced every time, can be with
Mould produces collision, many tiny grain structures, during collision, its meeting be present on its surface of the casting being just molded
Drop, be trapped in so as to form metal dust or chip in die cavity 01, now, using vacuum tank 4 to being taken out in die cavity 01
During vacuumizing, air can together detach metal dust or chip, and then enter vacuum valve 51 with air（Reference picture 6）
So that vavuum pump, blocks or damages vavuum pump, and then allow pumped vacuum systems to damage by vacuum valve 51.In order to solve above-mentioned ask
Inscribe, excessive structural 41 is set on vacuum tank 4, powder or chip are detained by excessive structural 41, on the one hand can be allowed
It does not interfere with the quality of die casting, while vacuum valve 51 or vavuum pump will not be caused to damage yet.
As shown in Figure 4 and Figure 5, wherein excessive structural 41 includes delay tank 44 and what is connected with delay tank 44 enters groove 42
And outlet slot 43.It is connected respectively with vacuum tank 4 with outlet slot 43 into groove 42, the first excessive structural 41 is placed on vacuum tank 4.
Set at an angle into groove 42 and outlet slot 43, meanwhile, what outlet slot 43 was connected with delay tank 44 is located proximate to enter groove
42 are set.General delay tank 44 is arranged to seal groove.Generally enter the angle between groove 42 and outlet slot 43 and be less than 90 ° of settings,
So when air is turned rapidly, due to metal dust or chip itself gravity it is larger, so as in inertia
In the presence of, it is thrown out of, and enters delay tank 44, and delay tank 44 is seal groove, its internal air-flow be it is stable, because
This, will not be brought into outlet slot 43 again by powder or chip.The connector and outlet slot 43 of groove 42 and delay tank 44 will be entered
Setting is overlapped with the connector of delay tank 44, so, delay tank 44 only exists an opening 45, and it is interior in air circulation
Portion's steady air current, and then will not be extracted easily after metal dust and chip enter, reach the mistake of metal dust and chip
The effect of filter.
As shown in Figure 4 and Figure 5, jagged 46 are set in the position that outlet slot 43 is connected with delay tank 44, breach 46 is set
In the opening 45 of delay tank 44, and breach 46 is wholely set with outlet slot 43.When air is taken out in the position of outlet slot 43, first take away scarce
The air of 46 positions of mouth, therefore, it can be pumped in the air part for entering groove 42, another part can enter breach 46 1
End, and during air is taken out, powder and impurity quality in air can be heavier than air in itself, are pumped through and turned in air
When curved, the inertia of powder and chip is big, hence into the purpose for delay tank 44, reaching dedusting.Likewise, close to vacuum valve
51 position is once again set up excessive structural 41, carries out secondary filter.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in right of the present utility model by Patent Law.
Claims (8)
1. a kind of secondary extrusion microdiecast mould, including dynamic model mechanism and fixed die mechanism, the dynamic model mechanism includes mavable module core
(21) and dynamic model frame (2), the fixed die mechanism include fixed mold core (11) and cover half frame (1), the mavable module core (21) and fixed mold core
(11) match, the dynamic model frame (2) matches with cover half frame (1), is formed between the mavable module core (21) and fixed mold core (11)
Die cavity (01), it is characterized in that：Shrinkage pool (61) is offered on the fixed mold core (11), shrinkage pool (61) is placed in die cavity (01), described
Pressurizing unit is installed, the pressurizing unit includes being located in squeezing on fixed mold core (11) and cover half frame (1) on cover half frame (1)
Depression bar (62) and the drive mechanism for promoting pressure ram (62), the pressure ram (62) are located in shrinkage pool (61).
2. secondary extrusion microdiecast mould according to claim 1, it is characterized in that：Offered on the fixed mold core (11) logical
Hole (63), the through hole (63) are connected with shrinkage pool (61), and elongated hole (64), the pressure ram are provided with the cover half frame (1)
(62) through sequentially passing through elongated hole (64) and through hole (63) is entered in shrinkage pool (61).
3. secondary extrusion microdiecast mould according to claim 2, it is characterized in that：The pressure ram (62) includes effect end
(621) spring (66) is arranged with end (621) with connection end (622), described act on, the through hole (63) is close to elongated hole (64)
One end be provided with reaming (65), the spring (66) is placed in reaming (65), and the spring (66) respectively with fixed mold core
(11) and connection end (622) contradict.
4. secondary extrusion microdiecast mould according to claim 3, it is characterized in that：It is fixed to be provided with the cover half frame (1)
Position mechanism (67), the detent mechanism (67) include location-plate (671) and slip cap (672), and the location-plate (671) is fixed
On cover half frame (1), the slip cap (672) is arranged on location-plate (671), and the extrusion oil cylinder (676), which is arranged on, to be slided
Cover on (672), and the cylinder rod of extrusion oil cylinder (676) is located in slip cap (672), and contradicted with pressure ram (62).
5. secondary extrusion microdiecast mould according to claim 4, it is characterized in that：Offered on the location-plate (671)
Circular hole（677）, the circular hole（677）Diameter is more than extrusion oil cylinder（676）Cylinder rod diameter and be less than pressure ram (62) connection end
(622) diameter.
6. secondary extrusion microdiecast mould according to claim 4, it is characterized in that：The cover half frame (1) if on be provided with
Dry adjusting screw rod (673), the adjusting screw rod (673) are set around elongated hole (64), the company of offering on the location-plate (671)
Hole (675) is connect, the adjusting screw rod (673) passes through connecting hole (675), and location-plate (671) two is placed on adjusting screw rod (673)
Side is arranged with locking nut (674).
7. secondary extrusion microdiecast mould according to claim 1, it is characterized in that：The mavable module core (21) and dynamic model frame
(2) vacuum tank (4) is offered on, the vacuum tank (4) connects with die cavity (01).
8. secondary extrusion microdiecast mould according to claim 7, it is characterized in that：It is provided with the vacuum tank (4) stagnant
Groove (44) is stayed, the delay tank (44) offers opening (45), and the vacuum tank (4) is connected with opening (45).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720401921.8U CN206839107U (en) | 2017-04-17 | 2017-04-17 | Secondary extrusion microdiecast mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720401921.8U CN206839107U (en) | 2017-04-17 | 2017-04-17 | Secondary extrusion microdiecast mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206839107U true CN206839107U (en) | 2018-01-05 |
Family
ID=60791467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720401921.8U Active CN206839107U (en) | 2017-04-17 | 2017-04-17 | Secondary extrusion microdiecast mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206839107U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112958754A (en) * | 2021-02-02 | 2021-06-15 | 哈尔滨工业大学 | Local loading forced feeding and core-pulling device of large aluminum alloy extrusion casting die |
-
2017
- 2017-04-17 CN CN201720401921.8U patent/CN206839107U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112958754A (en) * | 2021-02-02 | 2021-06-15 | 哈尔滨工业大学 | Local loading forced feeding and core-pulling device of large aluminum alloy extrusion casting die |
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| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201700 Shanghai City Liantang Town Nanhui District chapter Liantang Road No. 577 building third, fourth Patentee after: Shanghai Yongmao Thai Beijing Great Automotive Components Company Limited Address before: 201700 Shanghai City Liantang Town Nanhui District chapter Liantang Road No. 577 building third, fourth Patentee before: SHANGHAI WANTAI AUTO PARTS CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |