CN205851791U - A kind of gypsum mold and the gypsum mold for impeller gypsum mould molding - Google Patents
A kind of gypsum mold and the gypsum mold for impeller gypsum mould molding Download PDFInfo
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- CN205851791U CN205851791U CN201620871556.2U CN201620871556U CN205851791U CN 205851791 U CN205851791 U CN 205851791U CN 201620871556 U CN201620871556 U CN 201620871556U CN 205851791 U CN205851791 U CN 205851791U
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- mold
- gypsum
- base ring
- impeller
- die
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Abstract
The utility model discloses a kind of gypsum mold and the gypsum mold for impeller gypsum mould molding, including upper die and lower die and base ring, described upper mold is placed on base ring, arranges the lower mold coordinated with base ring in upper mold center；Upper die and lower die and base ring three form the forming cavity of impeller gypsum mould.The plaster core of this utility model impeller is complex-shaped, it is difficult to molding, by mould splitting into upper and lower mould, base ring according to its impeller external form, it is possible to accurate forming.
Description
Technical field
This utility model relates to a kind of gypsum mold, is specifically related to a kind of gypsum mold for impeller gypsum mold molding
And pouring device.
Background technology
When the foundry goods molding that some thin-walleds, structure complexity, dimensional accuracy and surface roughness requirements are high, Gypsum Fibrosum can be used
Mould makes the gypsum mould of foundry goods, and the structure of gypsum mold is most important to the molding of gypsum mould.
Such as: monoblock type impeller is the core component of turbo type engine, centrifugal compressor or centrifugal pump；This impeller
Wall is thin mostly, leaf curling, and structure is complicated, and dimensional accuracy and surface roughness requirements are high, in order to obtain precision and rough surface
Spend high impeller, need to use advanced gypsum mould to cast；When making impeller gypsum mould, having a step is by leaf
Wheel is placed in gypsum mold, then carries out follow-up Gypsum Fibrosum casting.
At present, most gypsum mold is all integral type, owing to monoblock type impeller casting structure is complicated, it is impossible to use
The gypsum mold of integral type makes gypsum mould, it is common practice that uses sand casting, is fabricated to polylith sand mold and splices, but this
Method man's activity is big, production efficiency is low for kind, splicing low precision, and mould surface roughness is poor, blade dimensions low precision.Such as system
Make integrated gypsum mould, it is possible to avoid splicing, improve precision, and plaster casting has preferable surface roughness and leaf
Chip size precision.
Utility model content
In order to solve the technical problem that prior art exists, the utility model discloses a kind of gypsum mold and for leaf
The gypsum mold of wheel gypsum mould molding, this mould can accurate forming.
The technical solution adopted in the utility model is as follows:
A kind of gypsum mold, including upper die and lower die and base ring, described upper mold is placed on base ring, at upper mold centre bit
Install the lower mold coordinated with base ring；Upper die and lower die and base ring three form forming cavity.
Further, described upper mold border is provided with the gas outlet connected with forming cavity, for by the gas within core
Discharge.
Further, the top of described upper mold is provided with hole for hoist, is used for lifting.
Further, between described base ring and upper mold, all carry out spacing by limiting stand between base ring and lower mold.
Further, described lower mold bottom centre be hollow arrange.
Further, described base ring is with being provided with groove between upper mold；To reduce base ring with the joining of contact surface between upper mold
Closing area, preventing because coordinating the out-of-flatness in face, deformation to cause base ring to reduce with upper mold assembly precision.
A kind of pouring device for gypsum mould, including described gypsum mold.
A kind of gypsum mold for impeller gypsum mould molding, including upper die and lower die and base ring, described upper mold is placed on
On base ring, the lower mold coordinated with base ring is set at upper mold bottom centre position；Upper die and lower die and base ring three form impeller Gypsum Fibrosum
The forming cavity of type.
Further, described lower mold upper surface is the curved surface that same impeller lower wall shape is coincide；Lower mold upper surface is provided with many
The individual groove I in order to place impeller blade mould, groove I is along lower mold surface extending.
Further, between described base ring and upper mold, all carry out spacing by limiting stand between base ring and lower mold.
Further, between base ring and upper mold, it is provided with groove II, to reduce base ring with the cooperation face of contact surface between upper mold
Long-pending, prevent because coordinating the out-of-flatness in face, deformation to cause base ring to reduce with upper mold assembly precision.
Further, the lower surface of upper mold is the curved surface coincideing with impeller upper surface shape, is provided with on described curved surface
For the annular groove of molding of gypsum core bossing, the surface of annular groove is provided with the gas outlet connected with forming cavity.
Further, upper mold top is provided with perfusing hole.
Further, the bottom centre of lower mold is that hollow is arranged.
Said apparatus is used for impeller gypsum mould molding.
Above-mentioned mold use method:
Step 1, lower mold is fixed together with base ring assembling docking
Step 2, the low-melting alloy blade made is placed in lower mold groove.
Step 3, upper mold is fixed together with base ring assembling docking.
Step 4, record mouth from upper mold, irrigate Gypsum Fibrosum.
Gypsum mould after step 5, perfusion utilizes the instruments such as scraper plate to be struck off upper end.
The beneficial effects of the utility model are as follows:
1, complex-shaped due to the plaster core of some foundry goods, it is difficult to molding, mould is split by this utility model,
Divide into the structure of upper die and lower die and base ring, so can be with accurate forming.
2, complex-shaped due to plaster core, if therefore using the mould of integral type, must increase in the molding trends of the times
This, therefore this utility model is by reasonably splitting mould, reduces its cost of manufacture.
3, the large-scale impeller that the plaster core using this Mold Making casts, surface quality of continuous castings is good, surface roughness
Height, the precision of blade dimensions is high.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, the accompanying drawing in describing below is this
Some embodiments of utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawing can be obtained according to these accompanying drawings.
Fig. 1 this utility model installs the front view after impeller；
Fig. 2 this utility model installs the top view after impeller；
The structure chart of Fig. 3 upper mold；
The structure chart of Fig. 4 lower mold；
The structure chart of Fig. 5 base ring；
The structure chart of Fig. 6 gypsum mould；
The profile of Fig. 7 impeller casting；
In figure: 1 perfusing hole, 2 holes for hoist, 3 grooves, 4 lower molds, 5 limiting stands, 6 limiting stands, 7 limiting stands, 8 base rings, 9 give vent to anger
Mouthful, 10 upper molds, 11 impeller blades.
Detailed description of the invention
The present invention is described in detail below in conjunction with the accompanying drawings:
As described by background section, this utility model, in order to solve the problem of casting accuracy, discloses one
For forming thin-walled, structure is complicated, dimensional accuracy and the gypsum mold of the high foundry goods of surface roughness requirements；Its concrete structure
As follows:
Gypsum mold includes upper die and lower die and base ring, and upper mold is placed on base ring, arranges and base ring in upper mold center
The lower mold coordinated；Upper die and lower die and base ring three form forming cavity.Mould after fractionation reduces its cost of manufacture.
Upper die and lower die described here are ring-type a, plate-like or other structures, the centrage weight of upper die and lower die
Close.
Upper mold border is provided with the gas outlet connected with forming cavity, for being discharged by the gas within core；Wherein gas outlet
Quantity can be adjusted according to different casting structures.
The top of upper mold is provided with hole for hoist, for after casting completes, is lifted into drying device by stone tongs
In be dried；Wherein the quantity of hole for hoist can also carry out different settings according to different casting structures；Hole for hoist simultaneously
Position can be configured according to different technological requirements.
Between base ring and upper mold, all carry out spacing by limiting stand between base ring and lower mold.
It is that hollow is arranged in lower mold bottom centre, material can be saved.
Base ring is with being provided with groove between upper mold；With reduce base ring with the cooperation area of contact surface between upper mold, prevent because
The out-of-flatness in cooperation face, deformation cause base ring to reduce with upper mold assembly precision.
In order to further this utility model is described in detail, as a example by foundry goods impeller, this utility model is entered
Row further instruction:
As shown in Figure 1, 2, for the gypsum mold of impeller gypsum mould molding, including upper mold 10, lower mold 4 and base ring 8, upper mold
10 are placed on base ring 8, arrange the lower mold 4 coordinated with base ring at upper mold 10 bottom centre position；Upper mold 10, lower mold 4 and base ring 8
Three forms the forming cavity of impeller gypsum mould；In forming cavity, place low-melting alloy impeller blade 11, be subsequently used for follow-up
Plaster formulation.
Upper mold 10, lower mold 4 are a circulus, and its centrage overlaps.
Owing to the plaster core of impeller is complex-shaped, it is difficult to molding, by impeller external form this utility model, mould is split
Become upper and lower mould, base ring, it is possible to accurate forming.
Further, as shown in Figure 4, lower mold 4 upper surface is the curved surface that same impeller lower wall shape is coincide；Lower mold 4 upper surface
Being provided with multiple groove I in order to place impeller blade mould, groove I is along lower mold surface extending；The bottom centre of lower mold 4 is that hollow sets
Put；During use, by the low-melting alloy blade arranged on lower mold 4 core, it is possible to when gypsum perfused molding, blade is solid
It is scheduled on impeller internal；
Further, as it is shown in figure 5, carry out spacing constraint by limiting stand 7 between base ring 8 and upper mold 10；Base ring 8 with under
Spacing constraint is carried out by limiting stand 5, limiting stand 6 between mould 4；Simultaneously between base ring and upper mold, lead between base ring 8 and lower mold 4
Cross the attachment means such as screw and carry out the most fixing connection.
Further, being provided with groove 3 between base ring 8 and upper mold 10, groove 3 here can reduce base ring 8 with upper mold 10
Between the cooperation area of contact surface, prevent because coordinating the out-of-flatness in face, deformation to cause base ring 8 to drop with the assembly precision of upper mold 10
Low；
However, it is desirable to explanation be groove between base ring 8 and upper mold 10 3 and the groove I of lower mold upper surface is not one
Same groove, its particular location and function are the most different.
Further, as it is shown on figure 3, the lower surface of upper mold 10 is the curved surface coincideing with impeller upper surface shape, described
Curved surface be provided with the annular groove for molding of gypsum core bossing, the surface of annular groove is provided with giving vent to anger of connecting with forming cavity
Mouth 9；
Wherein the quantity of gas outlet is in 4, preferably 10 but be not limited to these gas outlets, in use, can
With the needs according to different foundry goods, the gas outlet of varying number is set；Gas outlet 9 is in order to by the bossing of plaster core
Gas is discharged, and is packed into Gypsum Fibrosum wherein.
Perfusing hole 1 it is provided with between upper mold top；Meanwhile, it is provided with hole for hoist 2 at the top of upper mold, for completing in casting
After, it is lifted in drying device by stone tongs and is dried；The quantity of hole for hoist 2 is multiple；Preferably can make 8
Individual, or 4.
Gypsum mold described above, for the pouring device of impeller gypsum mould molding.
The above-mentioned mould using method when making impeller plaster core is as follows:
Step 1, lower mold 4 is assembled docking with base ring 8 it is fixed together
Step 2, the low-melting alloy blade made is placed in lower mold groove.
Step 3, upper mold 10 is assembled docking with base ring 8 it is fixed together.
Step 4, from the perfusing hole 1 of upper mold 10, irrigate Gypsum Fibrosum.
Gypsum mould after step 5, perfusion utilizes the instruments such as scraper plate to be struck off upper end.
The plaster core that mould of the present utility model is formed is when casting large-scale impeller, and impeller casting surface quality is good,
Surface roughness is high, and the precision of blade dimensions is high；Low-melting alloy melts in plaster core dry run, and fusible pattern mode is from stone
The mode removing blade in cream core is simple to operate, not contaminated gypsum surface, and alloy can reuse.
Although detailed description of the invention of the present utility model is described by the above-mentioned accompanying drawing that combines, but not new to this practicality
The restriction of type protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, ability
Field technique personnel need not to pay various amendments or deformation that creative work can make still at protection model of the present utility model
Within enclosing.
Claims (10)
1. a gypsum mold, it is characterised in that: include that upper die and lower die and base ring, described upper mold are placed on base ring, upper
Mould center arranges the lower mold coordinated with base ring；Upper die and lower die and base ring three form forming cavity.
2. gypsum mold as claimed in claim 1, it is characterised in that: described upper mold is provided with giving vent to anger of connecting with forming cavity
Mouthful；
Or the top of described upper mold is provided with hole for hoist.
3. gypsum mold as claimed in claim 1, it is characterised in that: between described base ring and upper mold, base ring and lower mold it
Between all carry out spacing by limiting stand；Described base ring is with being provided with groove between upper mold.
4. gypsum mold as claimed in claim 1, it is characterised in that: it is that hollow is arranged in described lower mold bottom centre.
5. the gypsum mold for impeller gypsum mould molding, it is characterised in that: include upper die and lower die and base ring, described
Upper mold is placed on base ring, arranges the lower mold coordinated with base ring in upper mold center；Upper die and lower die and base ring three form leaf
The forming cavity of wheel gypsum mould.
6. gypsum mold as claimed in claim 5, it is characterised in that: described lower mold upper surface is same impeller lower wall shape kiss
The curved surface closed；Lower mold upper surface is provided with multiple groove I in order to place impeller blade mould, and groove I is along lower mold surface extending.
7. gypsum mold as claimed in claim 5, it is characterised in that: between described base ring and upper mold, base ring and lower mold it
Between all carry out spacing by limiting stand.
8. gypsum mold as claimed in claim 5, it is characterised in that: it is provided with groove II between described base ring and upper mold.
9. gypsum mold as claimed in claim 5, it is characterised in that: the lower surface of upper mold is to coincide with impeller upper surface shape
Curved surface, described curved surface is provided with the annular groove for molding of gypsum core bossing, the surface of annular groove is provided with and becomes
The gas outlet of die cavity connection.
10. gypsum mold as claimed in claim 5, it is characterised in that: upper mold top is provided with the perfusing hole of gypsum slurry；Lower mold
Bottom centre be hollow arrange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620871556.2U CN205851791U (en) | 2016-08-11 | 2016-08-11 | A kind of gypsum mold and the gypsum mold for impeller gypsum mould molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620871556.2U CN205851791U (en) | 2016-08-11 | 2016-08-11 | A kind of gypsum mold and the gypsum mold for impeller gypsum mould molding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205851791U true CN205851791U (en) | 2017-01-04 |
Family
ID=57593537
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620871556.2U Active CN205851791U (en) | 2016-08-11 | 2016-08-11 | A kind of gypsum mold and the gypsum mold for impeller gypsum mould molding |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117564224A (en) * | 2024-01-17 | 2024-02-20 | 山东豪迈机械科技股份有限公司 | Gypsum ring for casting tire mold |
-
2016
- 2016-08-11 CN CN201620871556.2U patent/CN205851791U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117564224A (en) * | 2024-01-17 | 2024-02-20 | 山东豪迈机械科技股份有限公司 | Gypsum ring for casting tire mold |
| CN117564224B (en) * | 2024-01-17 | 2024-04-23 | 山东豪迈机械科技股份有限公司 | Gypsum ring for casting tire mold |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |