CN215614847U - Sand core mold capable of effectively improving defect of sand shooting incompactness of narrow curved surface of air cylinder body - Google Patents
Sand core mold capable of effectively improving defect of sand shooting incompactness of narrow curved surface of air cylinder body Download PDFInfo
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- CN215614847U CN215614847U CN202023261146.1U CN202023261146U CN215614847U CN 215614847 U CN215614847 U CN 215614847U CN 202023261146 U CN202023261146 U CN 202023261146U CN 215614847 U CN215614847 U CN 215614847U
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- exhaust
- sand
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- narrow
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- 239000004576 sand Substances 0.000 title claims abstract description 26
- 230000007547 defect Effects 0.000 title claims abstract description 17
- 238000007493 shaping process Methods 0.000 claims description 9
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 abstract description 12
- 238000005266 casting Methods 0.000 description 6
- 238000007528 sand casting Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The utility model discloses a sand core mold capable of effectively improving the defect of incomplete sand shooting of a narrow curved surface of a cylinder block, which comprises a mold body and an exhaust molding block embedded on the mold body, wherein a molding cavity which is in shape of a product is formed by the mold body and the exhaust molding block together, a plurality of exhaust grooves are formed in the surface of the molding cavity formed by the exhaust molding block, and exhaust holes communicated with the exhaust grooves are formed in the mold body. The utility model adopts the embedding mode to form a part of the forming die by the exhaust block, and arranges the exhaust holes on the surface of the forming cavity, thereby effectively solving the problem that the narrow curved surface cannot be shot.
Description
[ technical field ] A method for producing a semiconductor device
The utility model belongs to the technical field of casting industry, and particularly relates to a sand core mold capable of effectively improving the defect of unreal sand shooting of a narrow curved surface of a cylinder block.
[ background of the utility model ]
The casting mainly comprises sand casting and special casting, wherein the sand casting uses sand as a casting mold material, and the sand casting molding process is to adopt high-pressure injection sand in a mold with a molding cavity therein to mold a designed product shape. The size and shape of a casting product are various, the phenomenon of untimely sand shooting generally occurs at parts with narrow shapes, so that the shape defect of the product is caused, in the prior art, a standard vent plug is generally adopted to discharge gas in a forming cavity to help sand shooting to be compact, and the vent plug is suitable for being installed on a non-casting forming surface; however, when a curved surface with a narrow shape is formed, the vent plug cannot be normally arranged, so that the problem that sand shooting is not practical cannot be solved by the vent plug in the prior art.
Therefore, it is necessary to provide a sand core mold which can effectively improve the defect of sand shooting of the narrow curved surface of the cylinder block to solve the problems.
[ Utility model ] content
The utility model mainly aims to provide a sand core mould capable of effectively improving the defect of unrealistic sand shooting of a narrow curved surface of a cylinder block.
The utility model realizes the purpose through the following technical scheme: the utility model provides a can effectively improve psammitolite mould that cylinder block narrow and small curved surface penetrated sand and is not real defect, it includes the mould body, inlays exhaust shaping piece on the mould body, the mould body with exhaust shaping piece is formed with the one-tenth die cavity with the product profile modeling jointly, exhaust shaping piece constitutes the die cavity be provided with a plurality of air discharge ducts on the surface, be provided with on the mould body with the exhaust hole of air discharge duct intercommunication.
Furthermore, the die body is provided with a mounting step surface for mounting the exhaust forming block.
Furthermore, the mounting step surface is provided with a mounting hole, the bottom of the exhaust forming block is provided with a threaded hole corresponding to the mounting hole, and the exhaust forming block penetrates through the mounting hole from the bottom through a screw and is screwed into the threaded hole to be locked on the die body.
Furthermore, an exhaust cavity is arranged on the surface of one side of the exhaust molding block below the molding cavity, and the exhaust cavity is communicated with the exhaust hole.
Furthermore, the exhaust groove extends downwards to the inside of the exhaust cavity from the upper end of the surface of the exhaust forming block along the inner wall of the forming cavity.
Further, the exhaust groove is of a linear cutting groove opening structure.
Further, the width of the exhaust groove is less than or equal to 0.25 mm.
Compared with the prior art, the sand core mold capable of effectively overcoming the defect of unreal sand shooting of the narrow curved surface of the cylinder block has the beneficial effects that: adopt the partly of inlaying mode constitution forming die with the exhaust piece, the exhaust piece is as the exhaust effect on the one hand, and on the other hand is done the shaping piece effect concurrently, and with the mould body together around forming the die cavity to set up the air discharge duct on constituting the die cavity surface, the air discharge duct has been extended to the exhaust hole of mould body lower part along the die cavity always, has realized the regional exhaust of narrow little curved surface, and the effectual problem of not real of narrow little curved surface sand shooting of having solved.
[ description of the drawings ]
FIG. 1 is a schematic partial structure diagram according to an embodiment of the present invention;
FIG. 2 is a schematic top view of a portion of a mold body according to an embodiment of the utility model;
FIG. 3 is a schematic structural diagram of an exhaust forming block according to an embodiment of the present invention;
the figures in the drawings represent:
100, the sand core mould can effectively improve the defect of incomplete sand shooting of the narrow curved surface of the cylinder body;
1, a die body, 11 exhaust holes, 12 installation step surfaces and 13 installation holes; 2, exhausting a forming block, 21 an exhausting groove and 22 an exhausting cavity; and 3 forming a cavity.
[ detailed description ] embodiments
The first embodiment is as follows:
referring to fig. 1 to 3, the present embodiment is a sand core mold 100 capable of effectively improving the defect of sand shooting of a narrow curved surface of a cylinder block, and the sand core mold includes a mold body 1 and an exhaust forming block 2 embedded on the mold body 1, wherein the mold body 1 and the exhaust forming block 2 together form a forming cavity 3 which is profiled with a product, a plurality of exhaust grooves 21 are arranged on the surface of the forming cavity 3 formed by the exhaust forming block 2, and the mold body 1 is provided with exhaust holes 11 communicated with the exhaust grooves 21.
The die body 1 is provided with a mounting step surface 12 for mounting the exhaust forming block 2, the mounting step surface 12 is provided with a mounting hole 13, the bottom of the exhaust forming block 2 is provided with a threaded hole (not marked in the figure) corresponding to the mounting hole 13, and the exhaust forming block 2 penetrates through the mounting hole 13 from the bottom through a screw to be locked on the die body 1.
One side surface of the exhaust forming block 2 is provided with an exhaust cavity 22 below the forming cavity 3, the exhaust groove 21 extends downwards to the exhaust cavity 22 from the upper end of the surface of the exhaust forming block 2 along the inner wall of the forming cavity 3, and the exhaust cavity 22 is communicated with the exhaust hole 11.
The air discharge groove 21 is formed by linear cutting and has a width of 0.25mm or less. By setting the width within the range of the sand grain diameter, it is ensured that no sand runs.
In the embodiment, the exhaust molding block 2 is embedded and is locked by screws from the back of the mold; and then when sand shooting is carried out, gas in the molding cavity 3 is discharged into the exhaust cavity 22 along the exhaust groove 21 and then is discharged from the exhaust hole 11 on the mold body 1, so that the sand shooting compactness is guaranteed, and the actual molding operation verifies that the sand core molded by the mold of the embodiment has complete sand shooting at the narrow and small curved surface part and does not have the problem of shape defects caused by unrealistic sand shooting.
What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the utility model.
Claims (5)
1. The utility model provides a can effectively improve the narrow little curved surface of cylinder block and penetrate sand core mould of not real defect which characterized in that: it includes the mould body, inlays exhaust shaping piece on the mould body, the mould body with exhaust shaping piece is formed with the die cavity with the product profile modeling jointly, exhaust shaping piece constitutes the die cavity is provided with a plurality of air discharge ducts on the surface, be provided with on the mould body with the exhaust hole of air discharge duct intercommunication, one side surface of exhaust shaping piece is located the die cavity below is provided with an air discharge chamber, the air discharge chamber with exhaust hole intercommunication, the air discharge duct certainly exhaust shaping piece is followed on the surface upper end the die cavity inner wall downwardly extending to exhaust the intracavity.
2. The sand core mold capable of effectively improving the defect of sand shooting unreality of the narrow and small curved surface of the cylinder block as claimed in claim 1, wherein: and the die body is provided with a mounting step surface for mounting the exhaust forming block.
3. The sand core mold capable of effectively improving the defect of sand shooting incompleteness of the narrow and small curved surfaces of the cylinder block as claimed in claim 2, wherein: the exhaust forming block passes through the mounting hole from the bottom through a screw and is screwed into the threaded hole to be locked on the die body.
4. The sand core mold capable of effectively improving the defect of sand shooting unreality of the narrow and small curved surface of the cylinder block as claimed in claim 1, wherein: the exhaust groove is of a linear cutting groove opening structure.
5. The sand core mold capable of effectively improving the defect of sand shooting unreality of the narrow and small curved surface of the cylinder block as claimed in claim 1, wherein: the width of the exhaust groove is less than or equal to 0.25 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023261146.1U CN215614847U (en) | 2020-12-29 | 2020-12-29 | Sand core mold capable of effectively improving defect of sand shooting incompactness of narrow curved surface of air cylinder body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023261146.1U CN215614847U (en) | 2020-12-29 | 2020-12-29 | Sand core mold capable of effectively improving defect of sand shooting incompactness of narrow curved surface of air cylinder body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215614847U true CN215614847U (en) | 2022-01-25 |
Family
ID=79888254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023261146.1U Active CN215614847U (en) | 2020-12-29 | 2020-12-29 | Sand core mold capable of effectively improving defect of sand shooting incompactness of narrow curved surface of air cylinder body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215614847U (en) |
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2020
- 2020-12-29 CN CN202023261146.1U patent/CN215614847U/en active Active
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