CN210059704U - Casting sand mold capable of eliminating sand inclusion defect - Google Patents
Casting sand mold capable of eliminating sand inclusion defect Download PDFInfo
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- CN210059704U CN210059704U CN201920028444.4U CN201920028444U CN210059704U CN 210059704 U CN210059704 U CN 210059704U CN 201920028444 U CN201920028444 U CN 201920028444U CN 210059704 U CN210059704 U CN 210059704U
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Abstract
The utility model relates to an eliminate casting sand mould of double-layered sand defect, including last sand type body, lower sand type body, middle part sand type body, vertical pouring pipe, sprue gate and work piece die cavity, it constitutes the main part of casting sand mould jointly to go up sand type body, lower sand type body, middle part sand type body and gather the sand cavity, it is fixed with the middle part sand type body with the junction of lower sand type body to go up the sand type body, go up the middle part of having seted up the sprue gate in the middle of the sand type body. This eliminate casting sand mould of double-layered sand defect can realize solidifying the liquid metal through the last sand type body that is equipped with, lower sand type body and work piece die cavity, guarantee the shape of foundry goods, can realize collecting loose sand through the sand cavity of gathering that is equipped with, prevent to influence off-the-shelf quality, can realize getting rid of loose sand through the sand removal mouth that is equipped with, can realize cooling treatment to the foundry goods through the left cooling air flue that is equipped with and right cooling air flue, increase the volume of cooling air flue, the heat-sinking capability is improved, guarantee the metal yield.
Description
Technical Field
The utility model relates to a casting sand mould technical field specifically is a casting sand mould of eliminating double-layered sand defect.
Background
Casting is a relatively early metal hot working process mastered by human beings, and has a history of about 6000 years. China has entered the full prosperity of bronze castings approximately 1700 to the first 1000 years of the Gregorian, and has reached a fairly high level in technology. Casting refers to a process of pouring a solidified material into a mold having a specific shape after it is liquid at room temperature and is solidified. The casting is a technological process of smelting metal into liquid meeting certain requirements, pouring the liquid into a casting mold, cooling, solidifying and cleaning to obtain a casting with a preset shape, size and performance. The cast blank is nearly formed, so that the purposes of no machining or less machining are achieved, the cost is reduced, and the manufacturing time is reduced to a certain extent. Casting is one of the fundamental processes in the modern device manufacturing industry.
The sand mold casting process is characterized in that the complete outline shape of the inner cavity and the outer cavity of the casting is formed by combining a sand mold and a lower sand mold, a cavity formed by combining the sand mold and the lower sand mold is filled with liquid metal, and the liquid metal is cooled and solidified to form the casting. In the process of combining the sand mold and the lower sand mold, small sand blocks and loose sand can not be brought, and the small sand blocks and the loose sand in the cavity are blown out by compressed air generally. However, due to the complexity of the structure of the cavity, a plurality of corners and dead corners exist, and meanwhile, the lower sand mold blocks small sand blocks and loose sand from being blown out of the cavity by air flow and is easy to gather at the corners and the dead corners at the bottom of the cavity, and the small sand blocks and the loose sand are difficult to be thoroughly blown out of the cavity by repeatedly blowing the box. Because the small sand blocks and the loose sand occupy the space of the cavity, the liquid metal can not fill the cavity in the pouring process, and the small sand blocks and the loose sand are sintered by the high-temperature liquid metal. After the liquid metal is cooled and solidified, the sand inclusion defect appears on the surface of the casting, so that the defects of shrinkage porosity and shrinkage cavity are easily generated at the casting and the thick wall or the hot spot in the casting process of the traditional casting sand mold with the incomplete casting outline shape, and the metal yield is reduced. Therefore, there is a need to invent a casting sand mold that eliminates the sand inclusion defect.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an eliminate casting sand mould of double-layered sand defect to improve the problem that proposes in the above-mentioned background art, the utility model relates to a scientific and reasonable conveniently gets rid of loose sand and little sand block, improves the metal and goes out the yield.
In order to improve the above problem, the present invention is embodied by the following technical solutions: a casting sand mold for eliminating sand inclusion defects comprises an upper sand mold body, a lower sand mold body, a middle sand mold body, a vertical casting pipe, a casting opening and a workpiece cavity, wherein the upper sand mold body, the lower sand mold body, the middle sand mold body and a sand gathering cavity jointly form a main body of the casting sand mold, the middle sand mold body is fixedly arranged at the joint of the upper sand mold body and the lower sand mold body, the casting opening is formed in the middle of the upper sand mold body, the vertical casting pipe is fixedly connected to the middle of the casting opening, the workpiece cavity is fixedly formed in the left side and the right side of the vertical casting pipe, a sand gathering cavity is formed in the bottom of the workpiece cavity, 4-5 sand removing openings are formed in the sand gathering cavity, the sand removing openings penetrate through the sand gathering cavity, one side of the sand gathering cavity is fixedly connected with one end of a transverse casting pipe, the other end of the transverse casting pipe is fixedly connected with one side, and a right cooling air passage is formed in the right side of the upper sand mold body.
As an optimized embodiment of the utility model, vertical pouring tube bottom is sealed, the vertical pouring tube left and right sides all with horizontal pouring union coupling.
As an optimal implementation mode of the utility model, all be connected with 1-2 cross cooling air flues on left side cooling air flue and the right side cooling air flue, the cooling hole of left side cooling air flue, right side cooling air flue and cross cooling air flue all communicates with the outside.
As a preferred embodiment of the utility model, the number of the sand gathering cavities is 3-4, and the sand gathering cavities are respectively arranged at the upper side and the lower side of the middle sand body.
As a preferred embodiment of the utility model, left side cooling air flue and work piece die cavity keep apart the setting, and left side cooling air flue and the thick wall of work piece die cavity or the nearby setting of hot spot department.
The utility model has the advantages that: the utility model discloses an eliminate casting sand mould of double-layered sand defect, including last sand type body, lower sand type body, middle part sand type body, vertical pouring pipe, sprue gate, work piece die cavity, gather the sand cavity, go sand mouth, horizontal pouring pipe, left cooling air flue, right cooling air flue, horizontal cooling air flue.
1. This eliminate casting sand mould of double-layered sand defect can realize solidifying the shape to liquid metal through last sand type body, lower sand type body and the work piece die cavity that is equipped with, guarantees the shape of foundry goods, can realize collecting the loose sand through the sand cavity of gathering that is equipped with, prevents to influence off-the-shelf quality.
2. This eliminate casting sand mould of double-layered sand defect can realize getting rid of loose sand through the sand removal mouth that is equipped with, can realize carrying out cooling treatment to the foundry goods through the left cooling air flue that is equipped with and right cooling air flue, increases the volume of cooling air flue, improves heat-sinking capability, guarantees the metal yield.
The utility model discloses compensate the weak point in the background art to a certain extent.
Drawings
FIG. 1 is a schematic view of the overall structure of a casting sand mold for eliminating sand inclusion defects of the present invention;
FIG. 2 is a schematic view of a part of the structure of a casting sand mold for eliminating sand inclusion defects of the present invention;
in the figure: 1. the sand casting device comprises an upper sand casting body, a lower sand casting body, a middle sand casting body, a vertical casting pipe, a casting port, a workpiece cavity, a sand gathering cavity, a sand removing port, a transverse casting pipe, a left cooling air passage, a right cooling air passage, a transverse cooling air passage and a transverse cooling air passage, wherein the upper sand casting body is 2, the lower sand casting body is 3, the middle sand casting body is 4, the vertical casting pipe is 5, the casting port is 6, the workpiece cavity is 601.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
Referring to fig. 1 to 2, the present invention provides a technical solution: a casting sand mold for eliminating sand inclusion defects comprises an upper sand mold body 1, a lower sand mold body 2, a middle sand mold body 3, a vertical pouring pipe 4, a pouring port 5 and a workpiece cavity 6, wherein the upper sand mold body 1, the lower sand mold body 2, the middle sand mold body 3 and a sand gathering cavity 601 jointly form a main body of the casting sand mold, the middle sand mold body 3 is fixedly arranged at the joint of the upper sand mold body 1 and the lower sand mold body 2, the pouring port 5 is formed in the middle of the upper sand mold body 1, the vertical pouring pipe 4 is fixedly connected in the middle of the pouring port 5, the workpiece cavity 6 is fixedly formed in the left side and the right side of the vertical pouring pipe 4, the sand gathering cavity 601 is formed in the bottom of the workpiece cavity 6, 4-5 sand removing ports 602 are formed in the sand gathering cavity 601, the sand removing ports 602 penetrate through the sand gathering cavity 601, one side of the sand gathering cavity 601 is fixedly connected with, the other end of the transverse pouring pipe 603 is fixedly connected with one side of the vertical pouring pipe 4, a left cooling air passage 7 is formed in the left side of the upper sand mold body 1, and a right cooling air passage 8 is formed in the right side of the upper sand mold body 1.
The working principle is as follows: eliminate casting sand mould of double-layered sand defect when using, through last sand type body 1 that is equipped with, lower sand type body 2 can realize solidifying the shape to liquid metal with work piece die cavity 6, guarantee the shape of foundry goods, can realize collecting loose sand through the sand cavity 601 that gathers that is equipped with, prevent to influence off-the-shelf quality, go sand mouth 602 through being equipped with can realize getting rid of loose sand, can realize cooling treatment to the foundry goods through left cooling air flue 7 and the right cooling air flue 8 that are equipped with, increase the volume of cooling air flue, and the heat-sinking capability is improved, guarantee the yield of metal.
As an embodiment of the present invention, the bottom of the vertical pouring tube 4 is closed, and the left and right sides of the vertical pouring tube 4 are connected to the horizontal pouring tube 603.
As a preferred embodiment of the present invention, the left cooling air passage 7 and the right cooling air passage 8 are connected with 1-2 transverse cooling air passages 9, and the cooling ports of the left cooling air passage 7, the right cooling air passage 8 and the transverse cooling air passage 9 are communicated with the outside.
As a preferred embodiment of the present invention, the number of the sand collecting cavities 601 is 3-4, and the sand collecting cavities are respectively arranged on the upper side and the lower side of the middle sand body 3.
As a preferred embodiment of the present invention, the left cooling air passage 7 is isolated from the workpiece cavity 6, and the left cooling air passage 7 is disposed close to the thick wall or the hot spot of the workpiece cavity 6.
The utility model discloses the key feature: this eliminate casting sand mould of double-layered sand defect can realize solidifying the shape to liquid metal through last sand type body 1, lower sand type body 2 and the work piece die cavity 6 that are equipped with, guarantees the shape of foundry goods, can realize collecting scattered sand through the sand cavity 601 that gathers that is equipped with, prevents to influence off-the-shelf quality.
This eliminate casting sand mould of double-layered sand defect can realize getting rid of loose sand through the sand removal mouth 602 that is equipped with, can realize cooling treatment to the foundry goods through left cooling air flue 7 and the right cooling air flue 8 that are equipped with, increases the volume of cooling air flue, improves heat-sinking capability, guarantees the metal yield.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides an eliminate casting sand mould of double-layered sand defect, includes sand type body (1), lower sand type body (2), middle part sand type body (3), vertical pouring pipe (4), sprue gate (5) and work piece die cavity (6), its characterized in that: the casting sand mold comprises an upper sand mold body (1), a lower sand mold body (2), a middle sand mold body (3) and a sand gathering cavity (601) which jointly form a main body of a casting sand mold, wherein the middle sand mold body (3) is fixedly arranged at the joint of the upper sand mold body (1) and the lower sand mold body (2), a pouring gate (5) is arranged in the middle of the upper sand mold body (1), a vertical pouring pipe (4) is fixedly connected in the middle of the pouring gate (5), workpiece cavities (6) are fixedly arranged on the left side and the right side of the vertical pouring pipe (4), the sand gathering cavity (601) is arranged at the bottom of the workpiece cavity (6), 4-5 sand removing ports (602) are arranged on the sand gathering cavity (601), the sand removing ports (602) penetrate through the sand gathering cavity (601), one side of the sand gathering cavity (601) is fixedly connected with one end of a transverse pouring pipe (603), and the other end of the transverse pouring pipe (4) is fixedly, go up sand type body (1) left side and seted up left cooling airway (7), go up sand type body (1) right side and seted up right cooling airway (8).
2. A casting sand mold for eliminating sand inclusion defects according to claim 1, characterized in that the bottom end of the vertical pouring tube (4) is closed, and the left and right sides of the vertical pouring tube (4) are connected with the lateral pouring tube (603).
3. A casting sand mold for eliminating sand inclusion defects according to claim 1, characterized in that 1-2 transverse cooling air passages (9) are connected to the left cooling air passage (7) and the right cooling air passage (8), and cooling ports of the left cooling air passage (7), the right cooling air passage (8) and the transverse cooling air passages (9) are communicated with the outside.
4. A casting sand mold for eliminating sand inclusion defects according to claim 1, characterized in that the number of said sand collecting cavities (601) is 3-4, respectively opened on the upper and lower sides of the middle sand body (3).
5. A casting sand mold for eliminating sand inclusion defects according to claim 1, characterized in that the left cooling air passage (7) is provided separately from the workpiece cavity (6), and the left cooling air passage (7) is provided in the vicinity of the thick wall or hot spot of the workpiece cavity (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920028444.4U CN210059704U (en) | 2019-01-08 | 2019-01-08 | Casting sand mold capable of eliminating sand inclusion defect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920028444.4U CN210059704U (en) | 2019-01-08 | 2019-01-08 | Casting sand mold capable of eliminating sand inclusion defect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210059704U true CN210059704U (en) | 2020-02-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920028444.4U Withdrawn - After Issue CN210059704U (en) | 2019-01-08 | 2019-01-08 | Casting sand mold capable of eliminating sand inclusion defect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210059704U (en) |
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2019
- 2019-01-08 CN CN201920028444.4U patent/CN210059704U/en not_active Withdrawn - After Issue
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200214 Effective date of abandoning: 20230714 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200214 Effective date of abandoning: 20230714 |