CN217701250U - Impeller casting die that air discharge nature is good - Google Patents
Impeller casting die that air discharge nature is good Download PDFInfo
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- CN217701250U CN217701250U CN202221582359.0U CN202221582359U CN217701250U CN 217701250 U CN217701250 U CN 217701250U CN 202221582359 U CN202221582359 U CN 202221582359U CN 217701250 U CN217701250 U CN 217701250U
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Abstract
The utility model belongs to the technical field of casting dies, in particular to an impeller casting die with good air discharge performance, which comprises an upper die and a lower die; the middle part of the upper die extends upwards to form a protruding platform, a stepped hole a is vertically arranged on the protruding platform in a penetrating manner, and a stepped isolation sleeve is inserted in the stepped hole a; a step hole b is vertically arranged on the step isolation sleeve in a penetrating manner, and a step iron core is inserted in the step hole b; the exhaust groove is provided with two positions, wherein one position of the exhaust groove is vertically arrayed on the inner wall of the small port of the stepped hole a, and the other position of the exhaust groove is vertically arrayed on the inner wall of the small port of the stepped hole b; the air guide structures are arranged at two positions and are respectively arranged on the bottom surface of the large end part of the stepped isolation sleeve and the bottom surface of the large end part of the stepped iron core; exhaust structure, vertical array set up on the protruding bench for solve because the exhaust structure of last mould setting in the impeller casting die is simple, lead to the exhaust effect poor, can not be fast with the gas outgoing's in the die cavity problem.
Description
Technical Field
The utility model belongs to the technical field of the casting die, concretely relates to impeller casting die that air discharge is good.
Background
The manufacturing and processing of the impeller are generally divided into rough processing and finish processing, and for the rough processing of the impeller, a special impeller casting die is generally adopted for casting processing, aluminum water is poured into a die body cavity through a casting opening on a lower die in the impeller casting die, and after the aluminum water in the die cavity is cooled and solidified, a cast impeller casting blank can be obtained.
Because the aluminium water gets into mould size intracavity back, the psammitolite can be wrapped up in to the aluminium water in the die cavity to can make the resin in the sand core send out gas in a large number, make the die cavity can collect some gas, and because the exhaust simple structure who sets up on the last mould in the impeller casting die of present day, make the in-process that gets into the die cavity at the aluminium water, can not be fast with the produced gas outgoing in the die cavity, cause exhaust effect poor, lead to the aluminium water cooling solidification back, the phenomenon of gas pocket can appear on the foundry goods surface.
SUMMERY OF THE UTILITY MODEL
Based on the problem mentioned in the above-mentioned background art, the utility model provides an impeller casting die that air discharge is good for solve because the exhaust simple structure that the last mould set up among the impeller casting die, lead to the exhaust effect poor, can not be fast with the gas outgoing's of die cavity problem.
The utility model adopts the technical scheme as follows:
an impeller casting die with good exhaust performance comprises an upper die and a lower die, wherein the upper die is buckled on the top of the lower die and assembled to form a complete casting die;
the middle part of the upper die extends upwards to form a protruding platform, a stepped hole a is vertically arranged on the protruding platform in a penetrating manner, and a stepped isolation sleeve is inserted in the stepped hole a;
a stepped hole b is vertically arranged on the stepped isolation sleeve in a penetrating manner, and a stepped iron core is inserted into the stepped hole b;
the exhaust groove is provided with two positions, wherein one position of the exhaust groove is vertically arrayed on the inner wall of the small port of the stepped hole a in an engraved mode, and the other position of the exhaust groove is vertically arrayed on the inner wall of the small port of the stepped hole b in an engraved mode;
the air guide structures are arranged at two positions and are respectively arranged on the bottom surface of the large end part of the stepped isolation sleeve and the bottom surface of the large end part of the stepped iron core;
and the exhaust structure is arranged on the protruding platform in a vertical array manner.
On the basis of the technical scheme, the utility model discloses following improvement has still been made:
further, a gap is formed between the inner wall of the large end of the stepped hole a and the outer wall of the large end of the stepped isolation sleeve; and a gap is formed between the inner wall of the large end of the stepped hole b and the outer wall of the large end of the stepped iron core.
Furthermore, the air guide structure comprises a plurality of air guide grooves which are distributed on the bottom surface of the large end part of the stepped isolation sleeve and the bottom surface of the large end part of the stepped iron core in an array manner;
the air guide groove is wedge-shaped, and a large port of the air guide groove is positioned on one side far away from the center of the stepped iron core.
Further, the exhaust structure comprises an exhaust hole and a vent plug, the exhaust hole is vertically arranged on the protruding table, and the exhaust hole is communicated with the inner cavity of the die body; the air-permeable plug is inserted in the air-vent hole.
Furthermore, an annular mounting groove is formed in the opening portion of the top end of the inner cavity of the lower die, and a sand core is clamped in the annular mounting groove.
Furthermore, the bottom of the lower die is provided with a casting gate which is communicated with the inner cavity of the lower die.
The utility model has the advantages that:
1. through the combination of the arranged stepped hole a and the stepped isolation sleeve, a first layer of exhaust gap can be formed between the stepped hole a and the stepped isolation sleeve; through the combination of the stepped isolation sleeve and the stepped iron core, a second layer of exhaust gap can be formed between the stepped isolation sleeve and the stepped iron core, and gas in the cavity of the die body is exhausted by utilizing the two layers of exhaust gaps, so that the exhaust efficiency can be effectively improved;
2. the combination of the arranged exhaust grooves and the gas guide structure can enhance the flowing speed of gas in the first layer of exhaust gaps and the second layer of exhaust gaps, so that the gas can be discharged quickly, and the flowing effect of the gas in the gaps is improved;
3. through the exhaust structure, the exhaust speed of the gas in the cavity of the mold body can be further increased, and the exhaust effect is improved.
Drawings
The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;
FIG. 1 is a structural diagram of an impeller casting mold with good air discharge performance;
fig. 2 is an exploded cross-sectional view of an impeller casting mold with good air discharge performance according to the present invention;
fig. 3 is a three-dimensional cross-sectional view of the impeller casting mold with good air discharge performance of the present invention;
fig. 4 is a sectional plan view of the impeller casting mold of the present invention with good air discharge performance.
The drawings are labeled as follows:
101. an upper die; 102. a projection table; 103. a stepped hole a; 104. a step isolation sleeve; 105. a stepped hole b; 106. a stepped iron core; 201. a lower die; 202. an annular mounting groove; 203. a casting gate; 3. an exhaust structure; 301. an exhaust hole; 302. a venting plug; 4. an exhaust duct; 5. a sand core; 6. a gas guide groove.
Detailed Description
As shown in fig. 1 to 4, an impeller casting mold with good exhaust performance comprises an upper mold 101 and a lower mold 201, wherein the upper mold 101 is buckled on the top of the lower mold 201 to form a complete casting mold; the bottom of the lower die 201 is provided with a casting port 203, and the casting port 203 is communicated with the inner cavity of the lower die 201; through the arranged casting opening 203, when in use, molten aluminum can be poured into the cavity of the casting die through the casting opening 203, so that the cavity of the die is filled with the molten aluminum;
referring to fig. 2, an annular mounting groove 202 is formed in an opening portion of the top end of the inner cavity of the lower die 201, and a sand core 5 is clamped in the annular mounting groove 202, so that the sand core 5 is mounted in the cavity of the lower die;
referring to fig. 2, the middle part of an upper die 101 extends upwards to form a protruding platform 102, a stepped hole a103 is vertically arranged on the protruding platform 102 in a penetrating manner, a stepped isolation sleeve 104 is inserted in the stepped hole a103, and a gap is formed between the inner wall of the large end of the stepped hole a103 and the outer wall of the large end of the stepped isolation sleeve 104, so that a first layer of exhaust gap is formed in the whole die;
referring to fig. 2, the exhaust groove 4 is provided with two positions, wherein one position of the exhaust groove 4 is vertically arranged on the inner wall of the small end of the stepped hole a103 in an engraved manner, and through the arrangement of the exhaust groove 4, after the stepped isolation sleeve 104 is inserted into the stepped hole a103, the exhaust groove 4 can be used as an exhaust channel at the joint of the inner wall of the small end of the stepped hole a103 and the outer wall of the small end of the stepped isolation sleeve 104, and gas in the mold cavity can diffuse along the exhaust groove 4;
referring to fig. 2 and 3, the gas guide structure is provided with two positions, one of which is arranged on the bottom surface of the large end part of the step isolation sleeve 104, and the gas overflowing through the gas discharge groove 4 at the joint of the inner wall of the small end of the step hole a103 and the outer wall of the small end part of the step isolation sleeve 104 can be discharged to the first layer of gas discharge gap formed between the inner wall of the step hole a103 and the outer wall of the step isolation sleeve 104 through the arrangement of the gas guide structure;
referring to fig. 3, the gas guide structure includes a plurality of gas guide grooves 6, the plurality of gas guide grooves 6 are arranged and distributed on the bottom surface of the large end portion of the stepped isolation sleeve 104 in an array manner, the gas guide grooves 6 are wedge-shaped, the large port of the gas guide groove 6 is positioned on one side far away from the center of the stepped iron core 106, and a certain gap is formed between the bottom surface of the large end portion of the stepped isolation sleeve 104 and the stepped surface of the stepped hole a103 through the gas guide grooves 6 arranged at the position, so that the gas overflowing from the gas discharge groove 4 at the joint of the inner wall of the small port of the stepped hole a103 and the outer wall of the small end portion of the stepped isolation sleeve 104 can be guided into the first-layer gas discharge gap through the gas guide grooves 6 and discharged;
referring to fig. 2, a stepped hole b105 is vertically arranged on the stepped isolation sleeve 104 in a penetrating manner, a stepped iron core 106 is inserted into the stepped hole b105, and the hole of the stepped hole b105 can be blocked by the stepped iron core 106, so that the situation that the stepped hole b105 is completely opened to cause the aluminum water to overflow from the stepped hole b105 is avoided; a gap is formed between the inner wall of the large end of the stepped hole b105 and the outer wall of the large end of the stepped iron core 106, so that a second layer of exhaust gap is formed in the whole mould, and when molten aluminum is poured into the mould cavity, gas generated after the molten aluminum is contacted with the sand core 5 can be exhausted from the formed second layer of exhaust gap;
referring to fig. 2, the other exhaust groove 4 is vertically arrayed on the inner wall of the small end of the stepped hole b105, and through the arrangement of the exhaust groove 4, after the stepped iron core 106 is inserted into the stepped isolation sleeve 104, the exhaust groove 4 can be used as an exhaust channel at the joint of the inner wall of the small end of the stepped hole b105 and the outer wall of the small end of the stepped iron core 106, and the gas in the mold cavity can also diffuse along the exhaust groove 4;
referring to fig. 3, the other gas guide structure is arranged on the bottom surface of the large end of the stepped iron core 106, and the gas overflowing through the exhaust groove 4 at the joint of the inner wall of the small port of the stepped hole b105 and the outer wall of the small end of the stepped iron core 106 can be guided out to the second layer of exhaust gap formed between the inner wall of the stepped hole b105 and the outer wall of the stepped iron core 106 and discharged through the arrangement of the gas guide structure; the air guide structure comprises a plurality of air guide grooves 6, the air guide grooves 6 are distributed on the bottom surface of the large end part of the stepped iron core 106 in an array manner, the air guide grooves 6 are also in a wedge shape, and the large end opening of each air guide groove 6 is positioned on one side far away from the center of the stepped iron core 106; a certain gap is formed between the bottom surface of the large end part of the stepped iron core 106 and the stepped surface of the stepped hole b105 through the air guide groove 6 arranged at the position, so that the gas overflowing from the air exhaust groove 4 at the joint of the inner wall of the small end of the stepped hole b105 and the outer wall of the small end part of the stepped iron core 106 can be guided into the second-layer air exhaust gap through the air guide groove 6 at the position and exhausted; therefore, the gas in the cavity of the mold body is discharged by utilizing the two layers of exhaust gaps, and the exhaust efficiency can be effectively improved;
referring to fig. 2, the exhaust structures 3 are vertically arranged on the protruding table 102 in an array, and through the arrangement of the exhaust structures 3, the gas in the mold cavity can be exhausted, so that the exhaust efficiency of the gas can be further improved;
referring to fig. 2, the exhaust structure 3 includes an exhaust hole 301 and a vent plug 302, the exhaust hole 301 is vertically disposed on the protruding platform 102, and the exhaust hole 301 is connected with an inner cavity of the mold body in a penetrating manner; the vent plug 302 is inserted in the vent hole 301, and the gas in the mold cavity can be exhausted through the vent hole 301; the arranged vent plug 302 can seal the hole of the vent hole 301, and meanwhile, the vent plug 302 has certain air permeability, so that air can be discharged from the vent hole 301 after penetrating through the vent plug 302, and aluminum water can be intercepted by the vent plug 302, so that the aluminum water can be prevented from overflowing and leaking from the vent hole 301.
Referring to fig. 1 to 4, in use, after the sand core 5 is wrapped by the aluminum liquid filled in the cavity of the whole mold through the pouring gate 203, the resin in the sand core 5 generates gas, and the generated gas can sequentially pass through the exhaust groove 4 between the outer wall of the small end of the stepped isolation sleeve 104 and the inner wall of the small end of the stepped hole a103 and the gas guide groove 6 on the bottom surface of the large end of the stepped isolation sleeve 104 and be exhausted to the first gap formed between the inner wall of the large end of the stepped hole a103 and the outer wall of the large end of the stepped isolation sleeve 104;
and the gas in the cavity can also sequentially pass through the exhaust groove 4 between the outer wall of the small end part of the stepped iron core 106 and the inner wall of the small end port of the stepped hole b105 and the gas guide groove 6 at the bottom surface of the large end part of the stepped iron core 106 and is exhausted to the second gap formed between the inner wall of the large end port of the stepped hole b105 and the outer wall of the large end part of the stepped iron core 106, so that the gas in the cavity is exhausted by adopting two exhaust gaps, and the exhaust efficiency can be effectively improved.
The present invention has been described in detail above. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core concept. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (6)
1. An impeller casting die with good exhaust performance comprises an upper die (101) and a lower die (201), wherein the upper die (101) is buckled at the top of the lower die (201) to form a complete casting die;
the method is characterized in that: the middle part of the upper die (101) extends upwards to form a protruding platform (102), a stepped hole a (103) is vertically arranged on the protruding platform (102) in a penetrating mode, and a stepped isolation sleeve (104) is inserted in the stepped hole a (103);
a step hole b (105) is vertically arranged on the step isolation sleeve (104) in a penetrating manner, and a step iron core (106) is inserted in the step hole b (105);
the exhaust groove (4) is provided with two positions, wherein one position of the exhaust groove (4) is vertically arranged on the inner wall of the small port of the stepped hole a (103) in an array manner, and the other position of the exhaust groove (4) is vertically arranged on the inner wall of the small port of the stepped hole b (105) in an array manner;
the air guide structure is provided with two positions, and the two air guide structures are respectively arranged on the bottom surface of the large end part of the stepped isolation sleeve (104) and the bottom surface of the large end part of the stepped iron core (106);
and the exhaust structures (3) are arranged on the protruding platforms (102) in a vertical array mode.
2. The casting mold for impeller with good air exhaust performance as claimed in claim 1, wherein: a gap is formed between the inner wall of the large end of the stepped hole a (103) and the outer wall of the large end of the stepped isolation sleeve (104); a gap is formed between the inner wall of the large end of the stepped hole b (105) and the outer wall of the large end of the stepped iron core (106).
3. The impeller casting die with good exhaust performance according to claim 1, characterized in that: the air guide structure comprises a plurality of air guide grooves (6), and the air guide grooves (6) are distributed on the bottom surface of the large end part of the stepped isolation sleeve (104) and the bottom surface of the large end part of the stepped iron core (106) in an array manner;
the air guide groove (6) is wedge-shaped, and a large port of the air guide groove (6) is positioned on one side far away from the center of the step iron core (106).
4. The casting mold for impeller with good air exhaust performance as claimed in claim 1, wherein: the exhaust structure (3) comprises an exhaust hole (301) and a ventilation plug (302), the exhaust hole (301) is vertically arranged on the protruding platform (102), and the exhaust hole (301) is communicated with an inner cavity of the die body; the vent plug (302) is inserted in the vent hole (301).
5. The impeller casting die with good exhaust performance according to claim 1, characterized in that: an annular mounting groove (202) is formed in an opening portion of the top end of the inner cavity of the lower die (201), and a sand core (5) is clamped in the annular mounting groove (202).
6. The casting mold for impeller with good air exhaust performance as claimed in claim 1, wherein: the bottom of lower mould (201) is provided with casting gate (203), and casting gate (203) and lower mould (201) inner chamber through connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221582359.0U CN217701250U (en) | 2022-06-23 | 2022-06-23 | Impeller casting die that air discharge nature is good |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221582359.0U CN217701250U (en) | 2022-06-23 | 2022-06-23 | Impeller casting die that air discharge nature is good |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217701250U true CN217701250U (en) | 2022-11-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221582359.0U Active CN217701250U (en) | 2022-06-23 | 2022-06-23 | Impeller casting die that air discharge nature is good |
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| Country | Link |
|---|---|
| CN (1) | CN217701250U (en) |
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2022
- 2022-06-23 CN CN202221582359.0U patent/CN217701250U/en active Active
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