CN204747462U - Metal mold low pressure casting exhaust apparatus - Google Patents
Metal mold low pressure casting exhaust apparatus Download PDFInfo
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- CN204747462U CN204747462U CN201520391189.1U CN201520391189U CN204747462U CN 204747462 U CN204747462 U CN 204747462U CN 201520391189 U CN201520391189 U CN 201520391189U CN 204747462 U CN204747462 U CN 204747462U
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- exhaust apparatus
- fixed mount
- high temperature
- pressure casting
- temperature resistant
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Abstract
The utility model relates to a metal mold low pressure casting exhaust apparatus, including the exhaust apparatus main part, be equipped with in the exhaust apparatus main part and be used for carminative cavity, be equipped with the high temperature resistant ventilative layer of liquid that separates that ceramic fibre made in the cavity, the high temperature resistant ventilative layer top of liquid that separate is equipped with the mount, the high temperature resistant ventilative layer below of liquid that separate is equipped with the exhaust hole, the exhaust hole is including the bell mouth and the bell mouth boss of intercommunication, the little head end and the bell mouth boss intercommunication of bell mouth, the bell mouth boss is straight tube -shape, the bell mouth boss sets up and is being close to high temperature resistant one side that separates the ventilative layer of liquid, the easy drawing of patterns has, exhaust effectually and be convenient for the advantage of visual test foundry goods product exhaust situation and the change of casting material gas forming amount, it is suitable for still to have simultaneously economy, the operation is thus simple, the contamination free advantage of environmental protection.
Description
Technical field
The utility model relates to a kind of exhaust apparatus, is applicable to foundry engieering, is particularly useful for the accurate low pressure casting of metal mold, specifically, relates to a kind of metal-mold low-pressure casting exhaust apparatus, belong to casting technology field.
Background technology
Metal-mold low-pressure casting technology widely uses in China, especially uses in a large number in cast aluminium industry.
Exhaust in casting process medium casting chamber is one of key link, and gas extraction system is bad, can make to feel suffocated in chamber, also can produce counter-pressure time serious, causes metal liquid can not be full of die cavity completely, causes casting defect or scrap.
There is multiple exhaust mode in industry, be broadly divided into: plough groove type, clearance type and mesh-type.But the problems such as aforesaid way easily stifled, difficult cleaning, frequent replacing are their general character, cause efficiency to reduce, cost raises, exhaust is unstable, the high temperature prune job of workman, fixing difficulty.
As being that the Chinese patent of 200920123549.4 discloses a kind of core vent for aluminum alloy metal-type low-pressure casting at application number, being provided with copper screen cloth by using bottom venting plug, intercepting liquid aluminium and getting out from venting plug.But this copper screen cloth is not easily fixed, because liquid aluminium during casting can embed, after cast, copper screen cloth all have been stayed on foundry goods and cannot take off and reuse, and all obtains the copper screen cloth more renewed before casting at every turn, not only loaded down with trivial details, also causes waste at every turn.
Application number be 201310220519.6 Chinese patent disclose a kind of metal-mold low-pressure casting mould, comprise base plate, left and right mould, core, keel, bolt and patrix, sprue gate is had in the middle of base plate, cave in outside upper surface, left and right mould to be arranged in depression and for half slide structure, and junction has steam vent, patrix is arranged on the upper end of left and right mould, keel to be arranged on inside the mould of left and right and to be bolted with patrix, bolt has vertical through hole, core is arranged on keel, and keel are evenly provided with pore, after work-piece cools in die cavity is shaping, left and right mould opened by both sides opening and closing left and right cylinder, then patrix is mentioned, under workpiece being shaken from patrix, then the core in workpiece is smashed to pieces cleaning, complete workpiece can be obtained, inefficiency and cause great waste.
Utility model content
Technical problem to be solved in the utility model is for above deficiency, a kind of metal-mold low-pressure casting exhaust apparatus is provided, have the easy demoulding, good exhaust effect and be convenient to visual inspection cast product exhaust gas conditions and founding materials gas forming amount variation advantage, also there is economic and practical, simple to operate, environment friendly and pollution-free advantage simultaneously.
Exhaust apparatus of the present utility model is adopted to be exhausted, there is the advantage that technique is simple, efficiency is high, without the need to each dismounting, be vented more unimpeded compared to existing technology, whole structure is good, close under 300 DEG C of high temperature, save the take-down time of 15 ~ 20 minutes, improve the operating efficiency of form removal, reduce the labour intensity of high temperature service, replacement frequency reduces, and provides cost savings;
And the workpiece product quality adopting exhaust apparatus of the present utility model to prepare is high, effectively prevent the phenomenon that pore or scarce material appear in workpiece, product percent of pass reaches more than 99.9%.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of metal-mold low-pressure casting exhaust apparatus, is characterized in that: exhaust apparatus comprises exhaust apparatus main body, is provided with the cavity for being vented in exhaust apparatus main body.
A kind of prioritization scheme, is provided with high temperature resistant every liquid air-permeable layer in described cavity.
Another kind of prioritization scheme, described high temperature resistant every liquid air-permeable layer be ceramic fiber layer.
Another prioritization scheme, described cavity comprises steam vent, and steam vent is arranged on the high temperature resistant below every liquid air-permeable layer.
Further prioritization scheme, described steam vent comprises bellmouth and the bellmouth boss of connection, and the little head end of bellmouth is communicated with bellmouth boss, and bellmouth boss is straight-tube shape, and bellmouth boss is arranged near the high temperature resistant side every liquid air-permeable layer.
Further prioritization scheme, is describedly high temperature resistantly provided with fixed mount above liquid air-permeable layer.
Further prioritization scheme, described fixed mount comprises fixed mount supporting member, and the end of fixed mount supporting member is connected with fixed mount fixed component.
Further prioritization scheme, described fixed mount supporting member adopts V-shaped rest, and fixed mount fixed component is arranged on the openend of fixed mount supporting member.
Further prioritization scheme, described fixed mount fixed component is triangular in shape, fixed mount fixed component place plane and fixed mount supporting member place plane orthogonal.
The utility model adopts above technical scheme, compared with prior art, have the following advantages: exhaust apparatus comprises exhaust apparatus main body, the cavity for being vented is provided with in exhaust apparatus main body, what be provided with in cavity that ceramic fibre makes is high temperature resistant every liquid air-permeable layer, high temperature resistantly above liquid air-permeable layer, be provided with fixed mount, high temperature resistantly below liquid air-permeable layer, be provided with steam vent, steam vent comprises bellmouth and the bellmouth boss of connection, the little head end of bellmouth is communicated with bellmouth boss, bellmouth boss is straight-tube shape, bellmouth boss is arranged near the high temperature resistant side every liquid air-permeable layer, there is the easy demoulding, good exhaust effect and be convenient to visual inspection cast product exhaust gas conditions and founding materials gas forming amount variation advantage, also have economic and practical simultaneously, simple to operate, environment friendly and pollution-free advantage.
Described exhaust apparatus is adopted to be applied to the exhaust air technique of the accurate low pressure casting of metal mold, there is the advantage that technique is simple, efficiency is high, without the need to each dismounting, be vented more unimpeded compared to existing technology, whole structure is good, close under 300 DEG C of high temperature, save the take-down time of 15 ~ 20 minutes, improve the operating efficiency of form removal, reduce the labour intensity of high temperature service, replacement frequency reduces, and provides cost savings;
And the workpiece product quality adopting device of the present utility model and technique to prepare is high, effectively prevent the phenomenon that pore or scarce material appear in workpiece, product percent of pass reaches more than 99.9%.
Below in conjunction with drawings and Examples, the utility model is described in detail.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of exhaust apparatus in the utility model embodiment 1;
Accompanying drawing 2 is another structural representations of exhaust apparatus in the utility model embodiment 1;
Accompanying drawing 3 is the partial enlargement structural representations at I place in accompanying drawing 1;
Accompanying drawing 4 is structural representations of fixed mount in the utility model embodiment 1;
Accompanying drawing 5 is another structural representations of fixed mount in the utility model embodiment 1;
Accompanying drawing 6 is perspective view of fixed mount in the utility model embodiment 1;
Accompanying drawing 7 is application state schematic diagrames of exhaust apparatus in the utility model embodiment 1;
Accompanying drawing 8 is structural representations of exhaust apparatus in the utility model embodiment 2;
Accompanying drawing 9 is the partial enlargement structural representations at I place in accompanying drawing 8,
Accompanying drawing 10 is structural representations of exhaust apparatus in the utility model embodiment 3.
In figure,
1-exhaust apparatus, 11-exhaust apparatus main body, 111-cavity, 112-exhaust apparatus base plate, 113-extension, 12-hold-down nut, 13-fixed mount, 131-fixed mount supporting member, 132-fixed mount fixed component, 14-steam vent, 141-bellmouth, 142-bellmouth boss, 15-is high temperature resistant every liquid air-permeable layer, 2-casting gold genotype, 3-model used for casting, 4-casting workpiece.
Detailed description of the invention
Embodiment 1, as depicted in figs. 1 and 2, a kind of metal-mold low-pressure casting exhaust apparatus, exhaust apparatus 1 comprises exhaust apparatus main body 11, exhaust apparatus main body 11 is in cylindric, the center of exhaust apparatus main body 11 is provided with cavity 111 vertically, the cross section of cavity 111 is rounded, the one end open of cavity 111, between the other end of cavity 111 and the end face of exhaust apparatus main body 11 homonymy, there is exhaust apparatus base plate 112, fixed mount 13 is provided with in cavity 111, be provided with high temperature resistant every liquid air-permeable layer 15 between fixed mount 13 and exhaust apparatus base plate 112, high temperature resistant every liquid air-permeable layer 15 for realizing the gas overflowing produced in casting process, alloy liquid can be intercepted again to ooze out simultaneously, fixed mount 13 is for fixing high temperature resistant every liquid air-permeable layer 15 with compacting, prevent alloy liquid from going out high temperature resistant every liquid air-permeable layer 15.
Be applied to metal-mold low-pressure casting exhaust apparatus to the high temperature resistant selection every liquid air-permeable layer 15 in the present embodiment to test, test result is as shown in table 1.
Table 1
| Selection | Test result |
| Ceramic fibre | No liquid is overflowed, good permeability, casting workpiece bubble-free, free from admixture |
| High temperature resistant asbestos | Frangible, fall slag, asbestos disintegrating slag drops and is set in surface of the work |
Exhaust apparatus main body 11 is connected with extension 113 away from one end of exhaust apparatus base plate 112, and cavity 111 runs through extension 113, and the periphery of extension 113 is connected with hold-down nut 12.
Exhaust apparatus base plate 112 below cavity 111 runs through and has steam vent 14, steam vent 14 is communicated with cavity 111, steam vent 14 is provided with several, in the present embodiment, steam vent 14 is provided with 7, wherein 1 steam vent is arranged on the center of exhaust apparatus base plate 112, and all the other 6 steam vents are distributed on the periphery at exhaust apparatus base plate 112 center.
As shown in Figure 3, described steam vent 14 comprises bellmouth 141 and the bellmouth boss 142 of connection, the little head end of described bellmouth 141 is communicated with bellmouth boss 142, bellmouth boss 142 is in straight-tube shape, the diameter of bellmouth boss 142 is identical with the diameter of the little head end of bellmouth 141, and bellmouth boss 142 is arranged on the one end near cavity 111.Adopt this structure, easily realize the demoulding, demoulding success rate 100%, and after the demoulding, surface of the work is smooth, without sharp sharp-pointed face, safe and reliable.
As shown in Figure 4, Figure 5 and Figure 6, fixed mount 13 selects the metal with certain rigidity to make.
Described fixed mount 13 comprises fixed mount supporting member 131, fixed mount supporting member 131 adopts V-shaped rest, the end of fixed mount supporting member 131 openend is connected with fixed mount fixed component 132 respectively, fixed mount fixed component 132 is triangular in shape, two fixed mount fixed components 132 are positioned at same plane, fixed mount fixed component 132 place plane and fixed mount supporting member 131 place plane orthogonal, fixed mount fixed component 132 is positioned at the inner side of fixed mount supporting member 131, two fixed mount fixed components 132 are symmetrical arranged centered by the center line of fixed mount supporting member 131.
As shown in Figure 7, a kind of metal-mold low-pressure casting exhaust air technique, described exhaust air technique comprises the following steps: be bumped in casting gold genotype 2 by described exhaust apparatus 1, steam vent 14 is communicated with foundry goods die cavity, and during casting filling, the gas in foundry goods die cavity is discharged by the steam vent 14 of exhaust apparatus 1 lower end, due to high temperature resistant every the iris action of liquid air-permeable layer 15, metal liquid not by, only have gas to pass through, thus complete casting exhaust process.
After filling type, part metals liquid can solidify in the steam vent 14 of exhaust apparatus 1, and the top due to steam vent 14 has and high temperature resistantly to cover every liquid air-permeable layer 15, and gas is by discharging, and metal liquid is stagnated to this and solidified.
Embodiment 2, as shown in Figure 8 and Figure 9, a kind of metal-mold low-pressure casting exhaust apparatus, comprises steam vent 14, and steam vent 14 is tapered, and the stub end of steam vent 14 is positioned at bottom, and be convenient to the demoulding, all the other structures, with embodiment 1, repeat no more in the present embodiment.
When exhaust apparatus in the present embodiment is applied in metal-mold low-pressure casting process, good exhaust effect, the workpiece product quality obtained is high, effectively prevent the phenomenon that pore appears in workpiece, but easily there is sharp of sheet type in demoulding point upper end, though do not affect workpiece quality, but sometimes easily scratch operating personnel.
Embodiment 3, as shown in Figure 10, a kind of metal-mold low-pressure casting exhaust apparatus, comprises steam vent 14, and steam vent 14 is straight hole, and all the other structures, with embodiment 1, repeat no more in the present embodiment.
When exhaust apparatus in the present embodiment is applied in metal-mold low-pressure casting process, good exhaust effect, the workpiece product quality obtained is high, effectively prevent the phenomenon that pore appears in workpiece, but the demoulding is more difficult, the aluminium post solidified in steam vent 14 easily blocks steam vent, need dismantle cleaning.
The above is the citing of the utility model preferred forms, and the part wherein do not addressed in detail is the common practise of those of ordinary skill in the art.Protection domain of the present utility model is as the criterion with the content of claim, and any equivalent transformation carried out based on technology enlightenment of the present utility model, also within protection domain of the present utility model.
Claims (9)
1. a metal-mold low-pressure casting exhaust apparatus, is characterized in that: exhaust apparatus (1) comprises exhaust apparatus main body (11), is provided with the cavity for being vented in exhaust apparatus main body (11).
2. a kind of metal-mold low-pressure casting exhaust apparatus as claimed in claim 1, is characterized in that: be provided with high temperature resistant every liquid air-permeable layer (15) in described cavity.
3. a kind of metal-mold low-pressure casting exhaust apparatus as claimed in claim 2, is characterized in that: described high temperature resistant every liquid air-permeable layer (15) be ceramic fiber layer.
4. a kind of metal-mold low-pressure casting exhaust apparatus as claimed in claim 2 or claim 3, it is characterized in that: described cavity comprises steam vent (14), steam vent (14) is arranged on the high temperature resistant below every liquid air-permeable layer (15).
5. a kind of metal-mold low-pressure casting exhaust apparatus as claimed in claim 4, it is characterized in that: described steam vent (14) comprises bellmouth (141) and the bellmouth boss (142) of connection, the little head end of bellmouth (141) is communicated with bellmouth boss (142), bellmouth boss (142) is in straight-tube shape, and bellmouth boss (142) is arranged near the high temperature resistant side every liquid air-permeable layer (15).
6. a kind of metal-mold low-pressure casting exhaust apparatus as claimed in claim 2, is characterized in that: described high temperature resistant every liquid air-permeable layer (15) top be provided with fixed mount (13).
7. a kind of metal-mold low-pressure casting exhaust apparatus as claimed in claim 2, it is characterized in that: described fixed mount (13) comprises fixed mount supporting member (131), the end of fixed mount supporting member (131) is connected with fixed mount fixed component (132).
8. a kind of metal-mold low-pressure casting exhaust apparatus as claimed in claim 7, is characterized in that: described fixed mount supporting member (131) adopts V-shaped rest, and fixed mount fixed component (132) is arranged on the openend of fixed mount supporting member (131).
9. a kind of metal-mold low-pressure casting exhaust apparatus as claimed in claim 7, is characterized in that: described fixed mount fixed component (132) is triangular in shape, fixed mount fixed component (132) place plane and fixed mount supporting member (131) place plane orthogonal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520391189.1U CN204747462U (en) | 2015-06-09 | 2015-06-09 | Metal mold low pressure casting exhaust apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520391189.1U CN204747462U (en) | 2015-06-09 | 2015-06-09 | Metal mold low pressure casting exhaust apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN204747462U true CN204747462U (en) | 2015-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520391189.1U Active CN204747462U (en) | 2015-06-09 | 2015-06-09 | Metal mold low pressure casting exhaust apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104889365A (en) * | 2015-06-09 | 2015-09-09 | 山东豪迈机械科技股份有限公司 | Exhaust unit and method for low-pressure casting with metal mold |
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2015
- 2015-06-09 CN CN201520391189.1U patent/CN204747462U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104889365A (en) * | 2015-06-09 | 2015-09-09 | 山东豪迈机械科技股份有限公司 | Exhaust unit and method for low-pressure casting with metal mold |
| CN104889365B (en) * | 2015-06-09 | 2017-03-15 | 山东豪迈机械科技股份有限公司 | A kind of metal-mold low-pressure casting exhaust apparatus and method for exhausting |
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