Exhaust system for casting machine

Abstract

The invention discloses an exhaust system for a casting machine, and relates to the field of casting, the exhaust system for the casting machine comprises: a storage container defining a storage space; the first connecting pipeline is communicated with the storage space, and the first connecting pipeline is suitable for being communicated with the casting machine; and the air exhaust part communicates with the storage space, and the air exhaust part is used for guiding out the air in the storage space to reduce the air pressure in the storage space so as to exhaust the air in the casting machine. Therefore, the storage container is communicated between the casting machine and the air exhaust part, the air pressure in the storage space can be reduced through the air exhaust part, the air in the casting machine can be exhausted to the storage container through the pressure difference, the casting yield is improved, the storage container can store exhausted oil smoke and aluminum, the probability that the aluminum is pumped into the air exhaust part can be reduced, and the casting quality is improved. The damage risk of the air exhaust piece is reduced, and pollution can be reduced.

Description

Technical Field

[0001] This invention relates to the field of casting, and more particularly to an exhaust system for a casting machine. Background Technology

[0002] During the casting process of engine cylinder heads, sand cores are used to form complex internal cavity structures. However, during the high-temperature aluminum molten metal filling process, the sand cores generate a large amount of gas when heated. If the gas cannot be discharged from the casting machine in time, it will lead to defects such as porosity in the cylinder head. Currently, exhaust is mainly achieved through negative pressure fans. However, negative pressure fans are prone to sucking in aluminum, which can damage equipment, cause fires, and the oil fumes in the exhaust gases can cause pollution. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of the present invention is to provide an exhaust system for a casting machine that can reduce the probability of aluminum being drawn into the extraction components, reduce the risk of damage to the extraction components, and reduce pollution.

[0004] The exhaust system for a casting machine according to the present invention comprises: a storage container defining a storage space; a first connecting pipe communicating with the storage space and adapted to communicate with the casting machine; and an extractor communicating with the storage space for discharging gas from the storage space to reduce the gas pressure in the storage space, thereby extracting gas from the casting machine.

[0005] According to the exhaust system for a casting machine of the present invention, by connecting a storage container between the casting machine and the extraction component, the gas pressure in the storage space can be reduced by the extraction component, so that the gas in the casting machine can be extracted to the storage container by the pressure difference, thereby improving the casting yield. Furthermore, the storage container can store the discharged fumes and aluminum, thereby reducing the probability of aluminum being drawn into the extraction component, reducing the risk of damage to the extraction component, and reducing pollution.

[0006] In some examples of the present invention, the exhaust system for the casting machine further includes: a regulating valve, wherein the storage container forms a connecting hole, the connecting hole connecting the storage space to the outside of the storage container, the regulating valve being provided corresponding to the connecting hole, and the regulating valve being used to control the opening degree of the connecting hole.

[0007] In some examples of the present invention, the regulating valve is located in the communicating hole.

[0008] In some examples of the present invention, the exhaust system for the casting machine further includes: a second connecting pipe, the second connecting pipe being connected to the connecting hole, and the regulating valve being disposed in the second connecting pipe.

[0009] In some examples of the present invention, the regulating valve is configured as a ball valve; and / or, the extraction element is configured as a negative pressure fan.

[0010] In some examples of the present invention, along the height direction of the storage container, the distance between the connecting hole and the top of the storage container is smaller than the distance between the connecting hole and the bottom of the storage container.

[0011] In some examples of the present invention, the storage container is constructed as a negative pressure vacuum tank.

[0012] In some examples of the present invention, the exhaust system for the casting machine further includes a third connecting pipe, through which the extraction component is connected to the storage space.

[0013] In some examples of the present invention, there are multiple first connecting pipes, and at least two first connecting pipes are constructed as a pipe group, the number of pipe groups being the same as the number of casting machines and corresponding one-to-one.

[0014] In some examples of the invention, a plurality of the first connection conduits are arranged around the storage container.

[0015] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a top view of the storage container according to an embodiment of the present invention; Figure 2 This is a schematic diagram of a storage container according to an embodiment of the present invention; Figure 3 This is a diagram illustrating the connection between the casting machine and the exhaust system according to an embodiment of the present invention.

[0017] Figure label: Exhaust system 100; Casting machine 99; Storage container 10; storage space 11; connecting hole 12; first connecting pipe 13; air extraction component 14; regulating valve 15; second connecting pipe 16; third connecting pipe 17. Detailed Implementation

[0018] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0019] The following is for reference. Figures 1-3 An exhaust system 100 for a casting machine 99 according to an embodiment of the present invention is described.

[0020] like Figures 1-3 As shown, the exhaust system 100 for the casting machine 99 according to an embodiment of the present invention includes: a storage container 10, a first connecting pipe 13, and an exhaust component 14.

[0021] Storage container 10 defines storage space 11; first connecting pipe 13 is connected to storage space 11 and is adapted to be connected to casting machine 99; air extraction component 14 is connected to storage space 11 and is used to export gas in storage space 11 to reduce gas pressure in storage space 11, so as to extract gas in casting machine 99.

[0022] As some embodiments of this application, the exhaust system 100 for the casting machine 99 can be applied to the exhaust of the casting machine 99. This application will describe the application of the exhaust system 100 for the casting machine 99 to a cylinder head casting machine 99 for a vehicle as an example, and will not be described in detail below.

[0023] The storage container 10 defines the storage space 11. The shape of the storage container 10 can be constructed as, but is not limited to, a cylinder, a cuboid, etc. As some embodiments of this application, the storage container 10 is constructed as a cylinder.

[0024] The first connecting pipe 13 is connected to the storage space 11, and the first connecting pipe 13 can be connected to the casting machine 99, that is, the first connecting pipe 13 is connected between the storage space 11 and the casting machine 99.

[0025] The air extraction component 14 is connected to the storage space 11. As some embodiments of this application, the air extraction component 14 is connected to the storage space 11 through a pipeline. The air extraction component 14 can export the gas in the storage space 11 to reduce the gas pressure in the storage space 11, and then extract the gas in the casting machine 99 through the pressure difference.

[0026] It should be noted that during the casting process of the engine cylinder head, a sand core is generally used in the casting machine 99 to form a complex internal cavity structure. However, during the high-temperature aluminum liquid filling process, the sand core will generate a large amount of gas when heated. If the gas cannot be discharged from the casting machine 99 in time, it will cause defects such as porosity in the cylinder head. The exhaust system 100 for the casting machine 99 of this application connects the storage container 10 between the casting machine 99 and the air extraction component 14. The air extraction component 14 can export the gas in the storage space 11 to reduce the gas pressure in the storage space 11, thereby extracting the gas in the casting machine 99, thereby reducing or even eliminating the gas generated during the casting process and improving the casting yield.

[0027] Furthermore, in the exhaust system 100 for the casting machine 99 of this application, since the storage container 10 is connected between the casting machine 99 and the exhaust unit 14, the high-temperature molten aluminum will not directly enter the exhaust unit 14 after being extracted, but will remain in the storage container 10. This can greatly reduce the probability of the high-temperature molten aluminum entering the exhaust unit 14 and causing damage to the exhaust unit 14, thereby reducing the fire hazard. In addition, the exhaust unit 14 can also extract the oil fumes from the casting machine 99, reducing the maintenance cost of the casting machine 99. Furthermore, the oil fumes will also remain in the storage container 10, which can reduce pollution.

[0028] The extraction unit 14 is used to exhaust the gas in the storage space 11 to reduce the gas pressure in the storage space 11, thereby extracting the gas in the casting machine 99. It can be understood that the storage space 11 provides a buffer volume, which can stabilize the pressure, reduce the pressure fluctuations caused by the gas, and provide a stable exhaust environment for the casting process.

[0029] Therefore, by connecting the storage container 10 between the casting machine 99 and the extraction component 14, the air pressure in the storage space 11 can be reduced by the extraction component 14, so that the gas in the casting machine 99 can be extracted to the storage container 10 through the pressure difference, thereby improving the casting yield. In addition, the storage container 10 can store the discharged fumes and aluminum, which can reduce the probability of aluminum being drawn into the extraction component 14, reduce the risk of damage to the extraction component 14, and reduce pollution.

[0030] In some embodiments of the present invention, such as Figure 3 As shown, the exhaust system 100 for the casting machine 99 also includes: a regulating valve 15, a storage container 10 forming a connecting hole 12, the connecting hole 12 connecting the storage space 11 to the outside of the storage container 10, the regulating valve 15 being set corresponding to the connecting hole 12, and the regulating valve 15 being used to control the opening degree of the connecting hole 12.

[0031] The storage container 10 forms a connecting hole 12, which connects the storage space 11 to the outside of the storage container 10. A regulating valve 15 is disposed corresponding to the connecting hole 12. In some embodiments of this application, the regulating valve 15 is connected to the connecting hole 12 via a pipeline, so that the regulating valve 15 is disposed corresponding to the connecting hole 12. In some embodiments of this application, the regulating valve 15 is directly disposed in the connecting hole 12, so that the regulating valve 15 is disposed corresponding to the connecting hole 12.

[0032] The regulating valve 15 is used to control the opening of the connecting hole 12. It can be understood that the operator can control the opening of the connecting hole 12 by regulating the opening of the regulating valve 15, thereby controlling the negative pressure of the storage space 11.

[0033] By using the regulating valve 15 to control the opening of the connecting hole 12, the negative pressure of the storage space 11 can be controlled, thereby enabling stepless and precise adjustment of the negative pressure of the exhaust system 100 used for the casting machine 99, so that a suitable negative pressure is available when casting different products, and the risk of molten aluminum being extracted can be reduced.

[0034] In some embodiments of the present invention, the regulating valve 15 is disposed in the connecting hole 12. As some embodiments of this application, the regulating valve 15 is disposed in the connecting hole 12 via a flange. This arrangement facilitates the installation of the regulating valve 15, reduces assembly difficulty, improves assembly efficiency, and allows for a compact structure of the exhaust system 100 used in the casting machine 99, eliminating the need for additional connecting pipes and reducing leakage points.

[0035] In some embodiments of the present invention, such as Figure 3 As shown, the exhaust system 100 for the casting machine 99 further includes: a second connecting pipe 16, which is connected to the connecting hole 12, and a regulating valve 15 is provided in the second connecting pipe 16.

[0036] The second connecting pipe 16 is connected to the connecting hole 12, and the regulating valve 15 is located in the second connecting pipe 16. That is, the second connecting pipe 16 is connected between the connecting hole 12 and the regulating valve 15. This arrangement can improve the flexibility of the installation of the regulating valve 15, and the regulating valve 15 can be installed in a more convenient position for operation and observation according to the site space layout, which is conducive to improving the reliability of the exhaust system 100 used for the casting machine 99.

[0037] In some embodiments of the present invention, the regulating valve 15 is constructed as a ball valve. Ball valves have the characteristics of low flow resistance, good sealing performance, and rapid opening and closing. In addition, ball valves are easy to purchase and have low cost. By constructing the regulating valve 15 as a ball valve, the fine control of negative pressure of the exhaust system 100 used for the casting machine 99 can be met, and it is also beneficial to control costs.

[0038] In some embodiments of the present invention, the extraction component 14 is configured as a negative pressure fan. Negative pressure fan technology is mature and has a wide power range. By configuring the extraction component 14 as a negative pressure fan, the accuracy of the negative pressure control of the exhaust system 100 used for the casting machine 99 can be improved, and the gas in the casting machine 99 can be effectively extracted, which is beneficial to improving the reliability of the exhaust system 100 used for the casting machine 99.

[0039] In some embodiments of the present invention, along the height direction of the storage container 10, the distance between the connecting hole 12 and the top of the storage container 10 is smaller than the distance between the connecting hole 12 and the bottom of the storage container 10.

[0040] Along the height direction of the storage container 10, the distance between the connecting hole 12 and the top of the storage container 10 is smaller than the distance between the connecting hole 12 and the bottom of the storage container 10. In other words, the connecting hole 12 is closer to the top of the storage container 10. As some embodiments of this application, the connecting hole 12 is located on the top wall of the top of the storage container 10 (i.e., the distance between the connecting hole 12 and the top of the storage container 10 is zero).

[0041] This configuration allows the connecting hole 12 to be positioned at a higher level. If molten aluminum is drawn into the storage container 10, it will be isolated in the storage container 10 under the action of gravity. This reduces the probability that molten aluminum will be drawn into the suction device 14 and also reduces the probability that molten aluminum, oil, and other contaminants deposited at the bottom of the storage container 10 will clog the connecting hole 12. This helps to reduce maintenance costs and increase the service life of the exhaust system 100 used in the casting machine 99.

[0042] In some embodiments of the present invention, the storage container 10 is constructed as a negative pressure vacuum tank, which can operate under negative pressure. By constructing the storage container 10 as a negative pressure vacuum tank, the structural strength and sealing performance of the storage container 10 can meet the conditions for working under vacuum and negative pressure, which is beneficial to improving the exhaust effect of the exhaust system 100 used for the casting machine 99 and improving the reliability of the exhaust system 100 used for the casting machine 99.

[0043] In some embodiments of the present invention, such as Figure 1 and Figure 3 As shown, the exhaust system 100 for the casting machine 99 also includes a third connecting pipe 17, through which the extraction component 14 is connected to the storage space 11.

[0044] The extraction component 14 is connected to the storage space 11 via a third connecting pipe 17, meaning the third connecting pipe 17 connects the extraction component 14 and the storage space 11. This arrangement improves installation flexibility, reduces installation difficulty, and increases installation efficiency. Furthermore, depending on the site layout, the extraction component 14 can be installed away from the high-temperature pouring area, reducing the impact of high temperatures on the extraction component 14 and facilitating independent inspection and maintenance.

[0045] In some embodiments of the present invention, such as Figures 1-3 As shown, there are multiple first connecting pipes 13, and at least two first connecting pipes 13 are constructed as a pipe group. The number of pipe groups is the same as the number of casting machines 99 and they correspond one-to-one.

[0046] The number of first connecting pipes 13 is multiple, with at least two first connecting pipes 13 forming a pipe group. That is, two first connecting pipes 13 form a pipe group, or multiple first connecting pipes 13 form a pipe group. The number of pipe groups is the same as the number of casting machines 99 and they are set in a one-to-one correspondence.

[0047] As some embodiments of this application, the two first connecting pipes 13 are constructed as a pipe group, and the number of pipe groups is the same as the number of casting machines 99 and corresponds one-to-one.

[0048] This configuration allows the casting machine 99 to be connected to the storage container 10 via a pipeline assembly, thereby improving exhaust efficiency. Furthermore, this configuration allows multiple casting machines 99 to share a single storage container 10, significantly improving the utilization rate of the storage container 10, reducing equipment investment costs, and facilitating centralized negative pressure exhaust control for all casting machines 99.

[0049] In some embodiments of the present invention, a plurality of first connecting pipes 13 are arranged around the storage container 10. As some embodiments of the present application, the number of first connecting pipes 13 is two, and the two first connecting pipes 13 are arranged around the storage container 10.

[0050] This arrangement ensures that the first connecting pipe 13 is subjected to balanced forces, reduces the probability of damage to the first connecting pipe 13, and allows for a reasonable distribution of multiple first connecting pipes 13, facilitating disassembly and assembly.

[0051] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0052] In the description of this invention, "first feature" and "second feature" may include one or more of the features.

[0053] In the description of this invention, "a plurality of" means two or more.

[0054] In the description of this invention, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0055] In the description of this invention, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature.

[0056] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0057] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An exhaust system for a casting machine, characterized in that, The application relates to a storage container for a casting machine. The storage container defines a storage space. A first connecting pipeline is in communication with the storage space and is adapted to be in communication with the casting machine. An air extractor is in communication with the storage space and is used to lead out the gas in the storage space to reduce the air pressure in the storage space and extract the gas in the casting machine.

2. The exhaust system for an encaustic machine according to claim 1, characterized in that, Further comprising: An adjusting valve is arranged corresponding to the communication hole and is used to control the opening degree of the communication hole.

3. The exhaust system for an encaustic machine according to claim 2, characterized in that, The adjusting valve is arranged in the communication hole.

4. The exhaust system for an encaustic machine according to claim 2, characterized in that, Further comprising: A second connecting pipeline is in communication with the communication hole and the adjusting valve is arranged in the second connecting pipeline.

5. The exhaust system for an encaustic machine according to claim 2, characterized in that, The adjusting valve is configured as a ball valve; and / or the air extractor is configured as a negative pressure fan.

6. The exhaust system for an encaustic machine according to claim 2, characterized in that, The distance between the communication hole and the top end of the storage container is smaller than the distance between the communication hole and the bottom end of the storage container along the height direction of the storage container.

7. The exhaust system for an extrusion machine of claim 1, wherein, The storage container is configured as a negative pressure vacuum tank.

8. The exhaust system for an extrusion machine of claim 1, wherein, Further comprising: A third connecting pipeline is used for the air extractor to communicate with the storage space.

9. The exhaust system for an extrusion machine of claim 1, wherein, The first connecting pipeline is multiple, at least two first connecting pipelines are configured as a pipeline group, the number of the pipeline groups is the same as the number of the casting machines and one-to-one correspondence.

10. The exhaust system for an encaustic machine according to claim 9, characterized in that, Multiple first connecting pipelines are arranged around the storage container.

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