CN216938281U - Lost foam structure for casting large-size special-shaped cast iron pipe - Google Patents
Lost foam structure for casting large-size special-shaped cast iron pipe Download PDFInfo
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- CN216938281U CN216938281U CN202220535521.7U CN202220535521U CN216938281U CN 216938281 U CN216938281 U CN 216938281U CN 202220535521 U CN202220535521 U CN 202220535521U CN 216938281 U CN216938281 U CN 216938281U
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- rod group
- cast iron
- glass fiber
- lost foam
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Abstract
The utility model relates to a lost foam structure for casting a large-volume special-shaped cast iron pipe, which comprises a lost foam body, wherein a supporting structure is arranged in the lost foam body, the supporting structure comprises a middle supporting column, a first supporting rod group is arranged at the upper part of the middle supporting column, a second supporting rod group is arranged at the lower part of the middle supporting column, a glass fiber rod group is also arranged at the lower end of the middle supporting column, and the outer end parts of the first supporting rod group, the second supporting rod group and the glass fiber rod group are all connected with the inner wall of the lost foam body in an adhesive manner; the utility model provides convenience for casting and molding various large-size cast iron pipe workpieces by designing the lost foam with a new structure, and simultaneously improves the molding quality of the cast iron pipe workpieces to a certain extent.
Description
Technical Field
The utility model relates to the technical field of cast iron pipe casting mold products, in particular to a lost foam structure for casting large-volume special-shaped cast iron pipes.
Background
In the production process of large-size special-shaped cast iron pipes, because the pipe fittings of the types have relatively large volumes and belong to special-shaped parts, the pipe fittings are not regular pipe bodies, when the casting is carried out by adopting a traditional casting forming method, large forming flaws and quality problems are easily caused at certain parts of the castings, and the casting forming of the large-size cast iron pipe workpiece by adopting a common sand cavity is very troublesome, which is not beneficial to the improvement of the final forming quality.
Disclosure of Invention
The utility model aims to provide a lost foam structure for casting a large-size special-shaped cast iron pipe, which adopts a new design and can well improve the forming quality of large-size cast iron pipe workpieces.
The specific scheme of the utility model is as follows: a lost foam structure for casting large-size special-shaped cast iron pipes is provided with a lost foam body, a supporting structure is arranged inside the lost foam body and comprises a middle supporting column, a first supporting rod group is arranged on the upper portion of the middle supporting column, a second supporting rod group is arranged on the lower portion of the middle supporting column, a glass fiber rod group is further arranged at the lower end of the middle supporting column, and the outer end portions of the first supporting rod group, the second supporting rod group and the glass fiber rod group are connected with the inner wall of the lost foam body in an adhering mode.
Furthermore, the first support rod group and the second support rod group are formed by uniformly distributing a plurality of foam rods in a spoke shape by taking the middle support column as a center, and the outer end of each foam rod is connected with the inner wall of the lost foam body in an adhering mode.
Furthermore, a trapezoidal notch is formed in the middle of the foam rod in the second support rod group.
Furthermore, the glass fiber rod group comprises a cylindrical connector and a plurality of glass fiber rods, the cylindrical connector is made of foam materials and is connected to the bottom of the middle support column, the glass fiber rods are arranged in a spoke shape by taking the cylindrical connector as a center, one end of each glass fiber rod is bonded to the cylindrical connector, and the other end of each glass fiber rod is bonded to the inner wall of the evaporative pattern body.
Furthermore, the middle support column is made of foam materials.
The utility model provides convenience for casting and molding various large-size cast iron pipe workpieces by designing the lost foam with a new structure, and simultaneously improves the molding quality of the cast iron pipe workpieces to a certain extent.
Drawings
FIG. 1 is a schematic view of the present invention in a front view;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic view of the main cross-sectional direction of the present invention;
fig. 4 is a schematic view of the connection structure on the intermediate support column in the present invention.
In the figure: the novel evaporative pattern casting mould comprises a lost foam body, 2 glass fiber rods, 3 first support rod groups, 4 middle support rods, 5 trapezoidal notches, 6 second support rod groups and 7 cylindrical connectors.
Detailed Description
The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally arranged when the products of the present invention are used, and are only used for convenience in describing the present invention or simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, or be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 4, the utility model relates to a lost foam structure for casting a large-volume special-shaped cast iron pipe, which comprises a lost foam body 1, wherein a supporting structure is arranged in the lost foam body, the supporting structure comprises a middle supporting column 4, a first supporting rod group 3 is arranged at the upper part of the middle supporting column, a second supporting rod group 6 is arranged at the lower part of the middle supporting column, a glass fiber rod group is further arranged at the lower end of the middle supporting column, and the outer end parts of the first supporting rod group, the second supporting rod group and the glass fiber rod group are all connected with the inner wall of the lost foam body in an adhering mode.
Further, in this embodiment, the first support rod group and the second support rod group are formed by uniformly distributing a plurality of foam rods in a spoke shape with the middle support column as a center, and the outer end of each foam rod is connected to the inner wall of the evaporative pattern body in an adhesive manner.
Further, in this embodiment, a trapezoidal notch 5 is provided at a middle position of the foam rod in the second strut group.
Further, in this embodiment the glass fiber rod group is including cylindrical connector 7 and a plurality of glass fiber rods 2, the cylindrical connector is made for foam and connects in the bottom of middle support column, and the glass fiber rod uses the cylindrical connector to be the spoke form and arranges as the center, and the one end of glass fiber rod bonds on the cylindrical connector, and the other end of glass fiber rod bonds on the inner wall of disappearance mould body.
Further, in this embodiment, the middle support column is made of a foam material.
The utility model essentially manufactures a lost foam with a novel structure, and specifically comprises the following steps:
the novel evaporative pattern comprises an evaporative pattern body made of foam materials, a supporting structure inside the evaporative pattern body is made, an intermediate supporting column made of the foam materials is used for making the intermediate supporting column inside the evaporative pattern body, the intermediate supporting column can be made into a cylindrical shape or a square column shape, a first supporting rod group and a second supporting rod group are bonded on the intermediate supporting column, the foam rods are used for making the support in the first supporting rod group and the second supporting rod group, the first supporting rod group and the second supporting rod group are used for supporting the part with the smaller diameter at the upper part of the evaporative pattern body, a glass fiber rod group is arranged at the bottom of the intermediate supporting column and used for supporting the part with the larger diameter at the lower part of the evaporative pattern body, the glass fiber rod group is high-temperature resistant, the foam rods can be taken out for reuse after the evaporative pattern is cast, and the foam rods above the foam rods are dissolved and disappear along with the evaporative pattern casting.
According to the utility model, by improving the structure of the lost foam, the lost foam is not easy to deform when being buried in the sand box before casting operation, so that the deformation of the workpiece during later casting molding can be ensured, and the casting molding quality is improved.
The utility model provides convenience for casting and molding various large-size cast iron pipe workpieces by designing the lost foam with a new structure, and simultaneously improves the molding quality of the cast iron pipe workpieces to a certain extent.
Claims (5)
1. The utility model provides a disappearance mould structure for bulky dysmorphism cast iron pipe casting, has the disappearance mould body, its characterized in that: the inner part of the evaporative pattern body is provided with a supporting structure which comprises a middle supporting column, a first supporting rod group is arranged on the upper part of the middle supporting column, a second supporting rod group is arranged on the lower part of the middle supporting column, a glass fiber rod group is further arranged at the lower end of the middle supporting column, and the outer end parts of the first supporting rod group, the second supporting rod group and the glass fiber rod group are all connected with the inner wall of the evaporative pattern body in an adhering mode.
2. The lost foam structure for casting of large-volume special-shaped cast iron pipes as claimed in claim 1, wherein: the first support rod group and the second support rod group are formed by uniformly distributing a plurality of foam rods in a spoke shape by taking the middle support column as a center, and the outer end of each foam rod is connected with the inner wall of the lost foam body in an adhering mode.
3. The lost foam structure for casting of large-volume special-shaped cast iron pipes as claimed in claim 2, wherein: and a trapezoidal notch is formed in the middle of the foam rod in the second support rod group.
4. The lost foam structure for casting of large-volume special-shaped cast iron pipes as claimed in claim 1, wherein: the glass fiber rod group comprises a cylindrical connector and a plurality of glass fiber rods, the cylindrical connector is made of foam materials and connected to the bottom of the middle support column, the glass fiber rods are arranged in a spoke shape by taking the cylindrical connector as a center, one ends of the glass fiber rods are bonded to the cylindrical connector, and the other ends of the glass fiber rods are bonded to the inner wall of the evaporative pattern body.
5. The lost foam structure for casting of large-volume special-shaped cast iron pipes as claimed in claim 1, wherein: the middle support column is made of foam materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220535521.7U CN216938281U (en) | 2022-03-14 | 2022-03-14 | Lost foam structure for casting large-size special-shaped cast iron pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220535521.7U CN216938281U (en) | 2022-03-14 | 2022-03-14 | Lost foam structure for casting large-size special-shaped cast iron pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216938281U true CN216938281U (en) | 2022-07-12 |
Family
ID=82295202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220535521.7U Active CN216938281U (en) | 2022-03-14 | 2022-03-14 | Lost foam structure for casting large-size special-shaped cast iron pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216938281U (en) |
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2022
- 2022-03-14 CN CN202220535521.7U patent/CN216938281U/en active Active
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