CN106975730A - A kind of evaporative pattern exhaust apparatus - Google Patents
A kind of evaporative pattern exhaust apparatus Download PDFInfo
- Publication number
- CN106975730A CN106975730A CN201710292617.9A CN201710292617A CN106975730A CN 106975730 A CN106975730 A CN 106975730A CN 201710292617 A CN201710292617 A CN 201710292617A CN 106975730 A CN106975730 A CN 106975730A
- Authority
- CN
- China
- Prior art keywords
- dynamic model
- exhaust cap
- exhaust
- evaporative pattern
- die cavity
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
- B22C9/046—Use of patterns which are eliminated by the liquid metal in the mould
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The present invention provides a kind of evaporative pattern exhaust apparatus, belong to casting mould technical field, including fixed half and moving half, cover half is provided with die cavity, and die cavity is in a ring, cover half is respectively equipped with guide pin bushing close to four endpoint locations, the opposite position of dynamic model and cover half is provided with die cavity, and dynamic model is divided into opposite position on two parts, dynamic model and is provided with guide pillar, dynamic model is provided with cast gate close to the position at die cavity edge, and movable model intracavitary is provided with exhaust cap；One part of two aliquots of dynamic model is provided with projection, and another part is provided with groove.The present invention has advantages below：(1) casting liquid of the invention can be cooled down uniformly, and heat can be discharged rapidly, prevent cast-internal tissue density from differing；(2) present invention can quickly discharge gas, it is ensured that the quality of casting, the performance of casting is excellent, prevent cast-internal from containing bubble or impurity；(3) present invention has Dual positioning mechanism, dynamic model and cover half accurate positioning.
Description
Technical field
The invention belongs to casting mould technical field, and in particular to a kind of evaporative pattern exhaust apparatus.
Background technology
Lost foam casting be foam mould use bindless dry sand combination vacuum pumping technology cavityless casting, be by with
The similar bubbles model of casting dimension shape, which is bonded, is combined into model cluster, after brushing fireproof coating and drying, is embedded in drystone sand
Middle vibration molding, is poured into a mould under negative pressure, model is gasified, and liquid metals occupies modal position, and casting is formed after solidification cooling
Novel casting method.Compared with conventional casting technologies, lost foam casting has following features：Casting quality is good, and cost is low；Material is not
Limit, size is all suitable；Dimensional accuracy is high, any surface finish, reduces cleaning, and saving machine adds；Internal flaw greatly reduces, dense structure；
Extensive, production in enormous quantities can be achieved；Operating environment, reduction labor intensity can be substantially improved, energy resource consumption is reduced.
At present, liquid of being cast during lost foam casting exists uneven in temperature, causes cast-internal tissue density to differ, casting
It is of poor quality；Gas forming amount is big in casting process, and gas is discharged not in time easily forms stomata and entrainment impurity in casting, causes
Casting quality is low, and performance is poor.
The content of the invention
The technical problems to be solved by the invention are that providing a kind of cold and hot uniform discharge gas of casting liquid rapidly arranges
Device of air, i.e., a kind of evaporative pattern exhaust apparatus.
The technical problems to be solved by the invention are realized using following technical scheme：
A kind of evaporative pattern exhaust apparatus, including fixed half and moving half, the cover half be provided with die cavity, die cavity in a ring, cover half
Guide pin bushing is respectively equipped with close to four endpoint locations, and the opposite position of dynamic model and cover half is provided with die cavity, and dynamic model is divided into two portions
Point, opposite position is provided with guide pillar on dynamic model, and guide pillar is engaged with guide pin bushing, and dynamic model is provided with cast gate close to the position at die cavity edge,
Movable model intracavitary is provided with exhaust cap；One part of two aliquots of dynamic model is provided with projection, and another part is provided with recessed
Groove, projection and fit depressions.
The exhaust cap is arranged in a ring using the central point of dynamic model as the center of circle, and three annulars are constituted altogether, annular from inside to outside
Radius expands successively.
Exhaust cap equidistantly distributed in each annular.Exhaust cap is uniformly distributed, and is prevented heat row from not going out, is caused
Liquid of casting is uneven in temperature.
The quantity of exhaust cap is that the quantity of exhaust cap on 14~18, middle ring is 18~22, outer shroud in the inner ring
The quantity of upper exhaust cap is 22~26.Exhaust cap quantity is more, and discharge gas is rapid；Single exhaust cap, which is blocked, not to be influenceed to use.
The exhaust cap is cylindrical, exhaust cap only one of which end face, and the end face of exhaust cap is provided with circular hole, exhaust cap side
Face is provided with projection.
The circular hole is evenly distributed on the end face of exhaust cap.A large amount of circular holes ensure heat, the discharge of gas or impurity.
The projection has two rows and parallel distribution.It is raised that there is snap action with dynamic model, prevent dropping for exhaust cap；And
Exhaust cap is changed, saves economical.
The end face of the exhaust cap and the inner surface flush of dynamic model die cavity.Exhaust cap does not cause shadow to the shape of casting
Ring.
The raised height is 0.3~0.6mm.Projection does not produce damage to dynamic model and changes exhaust cap conveniently.
The dynamic model, cover half are that stainless steel material is made；Exhaust cap is made up of stainless steel material.Exhaust cap does not allow rapid wear
It is bad.
Its operation principle is：Exhaust cap is arranged on dynamic model by projection, exhaust cap is not fallen out, and then passes through guide pillar
Guide pin bushing and groove coupling Dual positioning close dynamic model with cover half, then inject into mould casting liquid by cast gate, heat with
Gas, impurity are quickly discharged by exhaust cap, are cooled and shaped, and mold pickup.
Compared with prior art, the present invention has advantages below：
(1) casting liquid of the invention can be cooled down uniformly, and heat can be discharged rapidly, prevent cast-internal tissue density not
One；
(2) present invention can quickly discharge gas, it is ensured that the quality of casting, the performance of casting is excellent, prevents casting
Contain bubble or impurity in inside；
(3) exhaust cap of the invention is evenly distributed on dynamic model die cavity, and discharge gas is rapid, and particular vent cap blocks not shadow
Sound is used；
(4) exhaust cap of the invention is not allowed fragile and changes convenient, saves economical；
(5) present invention has Dual positioning mechanism, dynamic model and cover half accurate positioning.
Brief description of the drawings
Fig. 1 is dynamic model top view of the invention；
Fig. 2 is cover half top view of the invention；
Fig. 3 is cover half Section A-A figure of the invention；
Fig. 4 is exhaust cap front view of the invention；
Fig. 5 is exhaust cap top view of the invention；
Fig. 6 is exhaust cap upward view of the invention.
In figure：1st, groove；2nd, projection；3rd, die cavity；4th, exhaust cap；5th, cast gate；6th, dynamic model；7th, guide pillar；8th, cover half；9th, lead
Set；401st, it is raised；402nd, circular hole.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Conjunction is specifically illustrating, and the present invention is expanded on further.
As shown in Figure 1, Figure 2 and Figure 3, a kind of evaporative pattern exhaust apparatus, including cover half 8 and dynamic model 6, cover half 8 are provided with type
Chamber 3, in a ring, cover half 8 is respectively equipped with guide pin bushing 9 to die cavity 3 close to four endpoint locations, and the opposite position of dynamic model 6 and cover half 8 is set
There is die cavity 3, dynamic model 6 is divided into opposite position on two parts, dynamic model 6 and is provided with guide pillar 7, and guide pillar 7 is engaged with guide pin bushing 9, is moved
Mould 6 is provided with cast gate 5, the die cavity 3 of dynamic model 6 close to the position at the edge of die cavity 3 and is provided with exhaust cap 4；6 two aliquots of dynamic model
One part is provided with projection 2, and another part is provided with groove 1, and projection 2 is engaged with groove 1；The end face of exhaust cap 4 with
The inner surface flush of the die cavity 3 of dynamic model 6.
As shown in figure 1, exhaust cap 4 is arranged in a ring using the central point of dynamic model 6 as the center of circle, three annulars are constituted altogether, from interior
Expand successively to outer annular radius, the quantity of exhaust cap 4 is that the quantity of exhaust cap 4 on 14~18, middle ring is 18 in inner ring
~22, the quantity of exhaust cap 4 is 22~26 on outer shroud；The equidistantly distributed of exhaust cap 4 in each annular.
As shown in Figure 4, Figure 5 and Figure 6, exhaust cap 4 is cylindrical, the only one of which end face of exhaust cap 4, the end face of exhaust cap 4
Circular hole 402 is provided with, circular hole 402 is evenly distributed on the end face of exhaust cap 4, the side of exhaust cap 4 is provided with projection 401, projection 401
Two rows and parallel distribution are had, the height of projection 401 is 0.3~0.6mm.
Dynamic model 6, cover half 8 are that stainless steel material is made；Exhaust cap 4 is made up of stainless steel material.
During work, exhaust cap 4 is arranged on dynamic model 6 by projection 401, exhaust cap 4 is not fallen out, and then passes through guide pillar
7th, guide pin bushing 9 and groove 1, the Dual positioning of projection 2 close dynamic model 6 with cover half 8, and casting is then injected into mould by cast gate 5
Liquid, heat is quickly discharged with gas, impurity by exhaust cap 4, is cooled and shaped, is molded pickup.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.
Claims (10)
1. a kind of evaporative pattern exhaust apparatus, including fixed half and moving half, it is characterised in that：The cover half is provided with die cavity, and die cavity is in
Annular, cover half is respectively equipped with guide pin bushing close to four endpoint locations, and the opposite position of dynamic model and cover half is provided with die cavity, dynamic model decile
For two parts, opposite position is provided with guide pillar on dynamic model, and guide pillar is engaged with guide pin bushing, and dynamic model is set close to the position at die cavity edge
There is cast gate, movable model intracavitary is provided with exhaust cap；One part of two aliquots of dynamic model is provided with projection, another part
Provided with groove, projection and fit depressions.
2. a kind of evaporative pattern exhaust apparatus according to claim 1, it is characterised in that：The exhaust cap is with the central point of dynamic model
It is arranged in a ring for the center of circle, three annulars are constituted altogether, and annular radius expands successively from inside to outside.
3. a kind of evaporative pattern exhaust apparatus according to claim 2, it is characterised in that：Exhaust cap in each annular etc.
Spacing is distributed.
4. a kind of evaporative pattern exhaust apparatus according to claim 2, it is characterised in that：The quantity of exhaust cap is in the inner ring
14~18, the quantity of exhaust cap is 18~22 on middle ring, and the quantity of exhaust cap is 22~26 on outer shroud.
5. a kind of evaporative pattern exhaust apparatus according to claim 1, it is characterised in that：The exhaust cap is cylindrical, exhaust
Cap only one of which end face, the end face of exhaust cap is provided with circular hole, and exhaust cap side is provided with projection.
6. a kind of evaporative pattern exhaust apparatus according to claim 5, it is characterised in that：The circular hole is evenly distributed on exhaust cap
End face on.
7. a kind of evaporative pattern exhaust apparatus according to claim 5, it is characterised in that：The projection has two rows and parallel point
Cloth.
8. a kind of evaporative pattern exhaust apparatus according to claim 5, it is characterised in that：The end face and movable model of the exhaust cap
The inner surface flush of chamber.
9. a kind of evaporative pattern exhaust apparatus according to claim 5, it is characterised in that：The raised height be 0.3~
0.6mm。
10. a kind of evaporative pattern exhaust apparatus according to claim 1, it is characterised in that：The dynamic model, cover half are stainless steel
Material is made；Exhaust cap is made up of stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710292617.9A CN106975730A (en) | 2017-04-28 | 2017-04-28 | A kind of evaporative pattern exhaust apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710292617.9A CN106975730A (en) | 2017-04-28 | 2017-04-28 | A kind of evaporative pattern exhaust apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106975730A true CN106975730A (en) | 2017-07-25 |
Family
ID=59343252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710292617.9A Pending CN106975730A (en) | 2017-04-28 | 2017-04-28 | A kind of evaporative pattern exhaust apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106975730A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204639090U (en) * | 2015-04-03 | 2015-09-16 | 苏州勤美达精密机械有限公司 | A kind of casting mould venting plug |
| CN105057587A (en) * | 2015-08-13 | 2015-11-18 | 湖南省至科铸造有限责任公司 | Grinding disc casting, grinding disc casting mold and grinding disc molding process |
| CN205291486U (en) * | 2015-12-01 | 2016-06-08 | 广东隆凯股份有限公司 | Plastic injection mold series with high -efficient exhaust structure |
| CN106217775A (en) * | 2016-07-30 | 2016-12-14 | 深圳浩翔光电技术有限公司 | A kind of mould for plastic packaging film |
| JP2017013091A (en) * | 2015-06-30 | 2017-01-19 | メカニックモデル有限会社 | Wax molding die and lost wax casting method |
| CN206997693U (en) * | 2017-04-28 | 2018-02-13 | 安徽大卫模具有限公司 | A kind of evaporative pattern exhaust apparatus |
-
2017
- 2017-04-28 CN CN201710292617.9A patent/CN106975730A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204639090U (en) * | 2015-04-03 | 2015-09-16 | 苏州勤美达精密机械有限公司 | A kind of casting mould venting plug |
| JP2017013091A (en) * | 2015-06-30 | 2017-01-19 | メカニックモデル有限会社 | Wax molding die and lost wax casting method |
| CN105057587A (en) * | 2015-08-13 | 2015-11-18 | 湖南省至科铸造有限责任公司 | Grinding disc casting, grinding disc casting mold and grinding disc molding process |
| CN205291486U (en) * | 2015-12-01 | 2016-06-08 | 广东隆凯股份有限公司 | Plastic injection mold series with high -efficient exhaust structure |
| CN106217775A (en) * | 2016-07-30 | 2016-12-14 | 深圳浩翔光电技术有限公司 | A kind of mould for plastic packaging film |
| CN206997693U (en) * | 2017-04-28 | 2018-02-13 | 安徽大卫模具有限公司 | A kind of evaporative pattern exhaust apparatus |
Non-Patent Citations (1)
| Title |
|---|
| 模具实用技术丛书编委会: "《压铸模设计应用实例》", 30 September 2005 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205437048U (en) | Triple offset butterfly valve valve body casting mould | |
| WO2020258681A1 (en) | Demolding mechanism having pin plug for side blowing | |
| CN206997693U (en) | A kind of evaporative pattern exhaust apparatus | |
| CN202427897U (en) | Casting mold for vacuum pump box body | |
| CN202438661U (en) | Die for casting engine cylinder cover | |
| CN202021323U (en) | Special core production device of hub reduction gear shell | |
| CN101347828A (en) | Lost foam casting method of mould sand substituted by steel shot | |
| CN106975730A (en) | A kind of evaporative pattern exhaust apparatus | |
| CN205904389U (en) | Almag thin -section casting device | |
| CN103182480B (en) | Gravity casting process for engine cylinder cover | |
| CN105903932A (en) | Honeycomb chilling block | |
| CN111842786B (en) | Sand warehouse with cooling function for lost foam casting | |
| CN103100663A (en) | Method for eliminating lost foam cast shrinkage crack defects of screw conveyor products | |
| CN104550708A (en) | Process for casting thick and large nodular cast iron valve plate | |
| CN209773392U (en) | Ventilation device for local ventilation of iron mold during pouring of molten iron in sand-lined iron mold casting | |
| CN111531817A (en) | Round top needle for injection mold | |
| CN210940219U (en) | Thin-wall multi-cavity plastic part forming die | |
| CN103182477A (en) | Die for casting engine cylinder cover | |
| CN107774906A (en) | A kind of method with clay-bonded sand cast superalloy mould | |
| CN103008539A (en) | Die | |
| CN106001480A (en) | Evaporative pattern centrifugal casting process | |
| CN208826967U (en) | A kind of end cap fan blade mold | |
| CN205904398U (en) | A disappearance sand case for axle housing manufacturing | |
| CN214684208U (en) | Cooling device is used in ironcasting production | |
| CN215090492U (en) | Upper die main body insert structure of lost foam impeller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170725 |
|
| RJ01 | Rejection of invention patent application after publication |