Casting pouring exhaust device
By designing a casting pouring exhaust device, the problems of poor gas exhaust and uneven cooling during casting pouring are solved, the dimensional accuracy and quality of the castings are improved, the porosity defects and casting deformation are reduced, and efficient cooling and high-quality production of castings are achieved.
Patent Information
- Application Number
- CN202422434987.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-10-09
AI Technical Summary
In the prior art, poor gas discharge and uneven cooling during casting lead to low casting quality, especially for large castings, which suffer from dimensional deviations and internal defects caused by porosity defects and uneven cooling during casting.
A casting exhaust device was designed, which included an exhaust structure and a suction component. Through the combination of air inlet holes, ventilation cavity and exhaust holes, the sand mold was ensured to be level and the gas was effectively discharged. At the same time, during the cooling process, hot and cold air circulation was achieved through the ventilation cavity and the pit, thereby improving the heat dissipation conditions.
It improves the dimensional accuracy and overall quality of castings, reduces porosity defects and casting scrap rate, ensures the uniformity and quality of casting cooling, and reduces the labor intensity of manual sanding.
Smart Images
Figure CN223352936U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of casting pouring cooling, in particular to a casting pouring exhaust device. Background Art
[0002] At present, the traditional manufacturing of large castings involves multiple steps, including mold manufacturing, sand casting, pouring, cooling and post-processing. In addition, during the sand casting process, the dimensional accuracy and quality of the castings are affected by many factors, including the design of the mold, the quality of the sand mold, the pouring conditions, etc. In the prior art, before each sand casting, traditional large castings need to arrange several solid square irons in the working area to form a closed-loop frame, pour loose sand into the frame, and manually control the height of the loose sand not to exceed the solid square iron, and manually level the loose sand; during the sand casting, the lower sand mold is installed on the solid square iron, and after fixing multiple sand cores in the lower sand mold in turn, the middle sand mold and the upper sand mold are fixed in place in turn and then poured to obtain the casting.
[0003] However, manual sand laying is time-consuming and labor-intensive, and is not easy to level. It is impossible to ensure that the lower sand box is in a horizontal state. In severe cases, it will affect the dimensional accuracy of the casting after grinding the box, which will lead to large deviations in the size of the casting. When pouring large castings, the combustion of organic matter in the sand mold in the lower box will produce a large amount of gas. The traditional method of filling the bottom of the lower box with sand will lead to poor exhaust problems, and the casting is prone to porosity defects. In the cooling process of large castings, sufficient time and good heat dissipation conditions are often required. However, the heat dissipation conditions at the bottom of the box are poor under the traditional cooling method, and a good circulation of hot and cold air cannot be formed, resulting in uneven cooling speed of the casting in the mold, internal defects or deformation of the casting. Utility Model Content
[0004] The main purpose of the utility model is to provide a casting pouring exhaust device to solve the problem in the prior art that the sand box is difficult to discharge the gas generated during casting pouring and the heat generated during casting cooling, resulting in low casting quality.
[0005] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a casting pouring exhaust device is provided, including: an exhaust structure, which is arranged on a supporting base surface, the exhaust structure has a placement plane for connecting to the bottom of the sand box, and a plurality of air inlet holes are provided on the placement plane, and the plurality of air inlet holes are respectively connected to the interior of the sand box; the exhaust structure has a ventilation cavity inside, and the exhaust structure has a plurality of exhaust holes along its circumferential direction, and the ventilation cavity is respectively connected to the plurality of air inlet holes and the plurality of exhaust holes, so that the gas generated inside the sand box during the pouring process flows into the ventilation cavity from the plurality of air inlet holes and is discharged through the plurality of exhaust holes; wherein the placement plane and the supporting base surface are arranged parallel to each other.
[0006] Furthermore, a pit is provided on the supporting base surface, at least part of the exhaust structure is located at the pit mouth and the ventilation cavity is connected to the pit, and the casting pouring exhaust device also includes: an exhaust component, which is arranged in the pit and the exhaust port of the exhaust component is located below the ventilation cavity, so that the exhaust component can extract the gas generated by the casting in the sand box during the cooling process into the pit.
[0007] Furthermore, the exhaust structure includes: an installation enclosure; a placement plate connected to the installation enclosure to enclose a ventilation cavity, multiple air inlet holes are respectively arranged on the placement plate, and an installation component is provided in the ventilation cavity to divide the ventilation cavity into multiple groups of sub-cavities arranged in sequence along the first direction, each group of sub-cavities includes multiple sub-cavities arranged in sequence along the second direction, and two adjacent sub-cavities are arranged to be connected to each other.
[0008] Furthermore, the mounting assembly includes: a plurality of first mounting plates, which are spaced apart along a first direction, the two ends of the plurality of first mounting plates are respectively connected to the two opposite inner walls of the mounting enclosure, and one side of the plurality of first mounting plates is respectively connected to the placement plate; a plurality of second mounting plates, which are spaced apart along a second direction, the two ends of the plurality of second mounting plates are respectively connected to the two opposite inner walls of the mounting enclosure, and one side of the plurality of second mounting plates is respectively connected to the placement plate, so that a sub-cavity is formed between two adjacent first mounting plates and two adjacent second mounting plates.
[0009] Furthermore, each first mounting plate is provided with a plurality of first ventilation holes at intervals along its extension direction, and at least one first ventilation hole on each first mounting plate is respectively connected to the corresponding sub-cavities located on both sides of the first mounting plate; and / or, each first mounting plate is provided with a plurality of first ventilation grooves at intervals on a side away from the placement plate, so that when the exhaust structure is installed on the supporting base surface, the first ventilation grooves and the supporting base surface form a first ventilation port, and the plurality of first ventilation ports are respectively connected to the plurality of sub-cavities located on both sides of the first mounting plate.
[0010] Furthermore, each second mounting plate is provided with a plurality of second ventilation holes at intervals along its extension direction, and at least one second ventilation hole on each second mounting plate is respectively connected to the corresponding sub-cavities located on both sides of the second mounting plate; and / or, each second mounting plate is provided with a plurality of second ventilation grooves at intervals on a side away from the placement plate, so that when the exhaust structure is installed on the supporting base surface, the second ventilation grooves and the supporting base surface form a second ventilation port, and the plurality of second ventilation ports are respectively connected to the plurality of sub-cavities located on both sides of the second mounting plate.
[0011] Furthermore, the distance between two adjacent first mounting plates is a first preset value, and the first preset value L1 satisfies: 30cm≤L1≤50cm; and / or, the distance between two adjacent second mounting plates is a second preset value, and the second preset value L2 satisfies: 30cm≤L2≤50cm.
[0012] Furthermore, the air inlet is a circular hole, the diameter of the air inlet is a first predetermined value, the first predetermined value R1 satisfies: 5cm≤R1≤8cm; and / or, the exhaust hole is a circular hole, the diameter of the exhaust hole is a second predetermined value, the second predetermined value R2 satisfies: 5cm≤R2≤8cm.
[0013] Furthermore, the first direction and the second direction are arranged perpendicular to each other.
[0014] Furthermore, the installation panel, the placement plate and the installation assembly are an integrally formed structure.
[0015] Applying the technical solution of the present utility model, the casting exhaust device includes an exhaust structure, which is arranged on a supporting base surface, and the exhaust structure has a placement plane for connecting to the bottom of the sand box, and a plurality of air inlet holes are provided on the placement plane, and the plurality of air inlet holes are respectively connected to the interior of the sand box; the exhaust structure has a ventilation cavity inside, and the exhaust structure has a plurality of exhaust holes along its circumferential direction, and the ventilation cavity is respectively connected to the plurality of air inlet holes and the plurality of exhaust holes, so that the gas generated inside the sand box during the pouring process flows from the plurality of air inlet holes into the ventilation cavity and is discharged through the plurality of exhaust holes; wherein the placement plane and the supporting base surface are arranged parallel to each other. In this way, the exhaust structure is first set on the supporting base surface and the placement plane is adjusted to be horizontal with the supporting base surface, and then the lower sand mold of the sand box is placed on the placement plane of the exhaust structure, which can ensure the horizontal state of the sand mold, avoid the dimensional deviation of the casting caused by the uneven sand mold, improve the dimensional accuracy and overall quality of the casting, and save time and effort compared with the traditional manual sand leveling; and then after fixing multiple sand cores in the lower sand mold in turn, the middle sand mold and the upper sand mold are fixed in place in turn, and finally casting is performed to obtain the casting. During the pouring process, the combustible material in the sand mold will burn, so that a large amount of gas will be generated inside the sand mold and flow into the ventilation cavity through multiple air inlet holes on the placement plane, and discharged through multiple exhaust holes on the circumference of the exhaust structure to prevent the gas from entering the internal cavity of the sand mold and causing pore defects in the casting, thereby improving the quality of the casting and reducing the scrap rate of the casting, thereby solving the problem that the sand box in the existing technology is difficult to discharge the gas generated during the pouring of the casting and the heat generated during the cooling of the casting, resulting in low casting quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:
[0017] Figure 1 A schematic structural diagram of a first perspective of an embodiment of a casting pouring exhaust device according to the present utility model is shown;
[0018] Figure 2 A schematic structural diagram of a second perspective provided by an embodiment of the casting pouring exhaust device of the utility model is shown;
[0019] Figure 3 A schematic diagram of the structure of the exhaust system of a sand mold during the casting process according to an embodiment of the casting exhaust system of the present invention is shown;
[0020] Figure 4 A schematic structural diagram of exhausting the casting in the sand mold during the cooling process is shown according to an embodiment of the casting pouring exhaust device of the present invention.
[0021] The above drawings include the following reference numerals:
[0022] 1. Support base; 2. Pit; 3. Exhaust component; 10. Exhaust structure; 11. Placement plane; 12. Air inlet; 13. Ventilation cavity; 130. Sub-cavity; 14. Exhaust hole; 15. Mounting panel; 16. Placement plate; 20. Mounting assembly; 21. First mounting plate; 210. First vent hole; 211. First vent groove; 22. Second mounting plate; 220. Second vent hole; 221. Second vent groove; 100. Sand box. DETAILED DESCRIPTION
[0023] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0024] In order to solve the problem in the prior art that the sand box is difficult to discharge the gas generated during casting and the heat generated during casting cooling, resulting in low casting quality, the utility model provides a casting casting exhaust device.
[0025] Please refer to Figures 1 to 4 As shown, the technical solution of the present invention is applied to provide a casting exhaust device, including an exhaust structure 10, which is arranged on a supporting base 1. The exhaust structure 10 has a placement plane 11 for connecting to the bottom of the sand mold, and a plurality of air inlet holes 12 are provided on the placement plane 11. The plurality of air inlet holes 12 are respectively connected to the interior of the sand mold; the exhaust structure 10 has a ventilation cavity 13 inside, and the exhaust structure 10 is provided with a plurality of exhaust holes 14 along its circumferential direction. The ventilation cavity 13 is respectively connected to the plurality of air inlet holes 12 and the plurality of exhaust holes 14, so that the gas generated inside the sand mold during the pouring process flows from the plurality of air inlet holes 12 into the ventilation cavity 13 and is discharged through the plurality of exhaust holes 14; wherein the placement plane 11 and the supporting base 1 are arranged parallel to each other.
[0026] By applying the technical solution of this embodiment, the exhaust structure 10 is first set on the supporting base 1 and the placement plane 11 is adjusted to be horizontal with the supporting base 1, and then the lower sand mold of the sand box 100 is placed on the placement plane 11 of the exhaust structure 10, which can ensure the horizontal state of the sand mold, avoid the dimensional deviation of the casting caused by the uneven sand mold, improve the dimensional accuracy and overall quality of the casting, and save time and labor compared to the traditional manual sand leveling; then, after fixing multiple sand cores in the lower sand mold in turn, the middle sand mold and the upper sand mold are fixed in place in turn, and finally pouring is carried out A casting is obtained, and during the pouring process, the combustibles in the sand mold will burn, so that a large amount of gas is generated inside the sand mold and flows into the ventilation cavity 13 through the multiple air inlet holes 12 on the placement plane 11, and is discharged through the multiple exhaust holes 14 on the circumference of the exhaust structure 10, so as to prevent the gas from entering the internal cavity of the sand mold and causing air hole defects in the casting, thereby improving the quality of the casting and reducing the scrap rate of the casting, thereby solving the problem in the prior art that the sand box 100 is difficult to discharge the gas generated during the pouring of the casting and the heat generated during the cooling of the casting, resulting in lower casting quality.
[0027] In this embodiment, a coaming flask 100, a middle flask 100, and a lower flask 100 are arranged from top to bottom. Each of these flasks houses the upper, middle, and lower sand molds, respectively. The flask 100 is a box made of cast or welded metal, used to form the sand mold. The sand mold is used to position the sand core, forming the outer structure of the casting, and partially contacts the molten metal. The sand core forms the inner cavity of the casting and is largely surrounded by the hot liquid metal within the mold.
[0028] like Figure 4 As shown, a pit 2 is provided on the supporting base surface 1, at least part of the exhaust structure 10 is located at the pit mouth of the pit 2 and the ventilation cavity 13 is connected to the pit 2, and the casting pouring exhaust device also includes: an exhaust component 3, which is arranged in the pit 2 and the exhaust port of the exhaust component 3 is located below the ventilation cavity 13, so that the exhaust component 3 can extract the gas generated by the casting in the sand mold during the cooling process into the pit 2. In this way, during the cooling process after the casting is completed in the sand mold, that is, during the process of dropping from a high temperature state to a low temperature state, the casting will release a large amount of heat. The heat can flow into the ventilation cavity 13 through the multiple air inlet holes 12 on the placement plane 11, and the heat is extracted from the ventilation cavity 13 into the pit 2 through the exhaust component 3 in the pit 2. At this time, the external normal temperature gas can also enter the ventilation cavity 13 through the multiple exhaust holes 14 on the circumference of the exhaust structure 10, and enter the sand mold to form a good hot and cold air circulation, thereby improving the heat dissipation conditions at the bottom of the sand mold, making the temperature distribution of the casting more uniform during the cooling process, and avoiding the deformation and internal stress problems of the casting caused by local overheating or uneven cooling speed.
[0029] Specifically, the exhaust structure 10 includes an installation enclosure 15 and a placement plate 16; the placement plate 16 is connected to the installation enclosure 15 to enclose a ventilation cavity 13, and multiple air inlet holes 12 are respectively arranged on the placement plate 16. An installation component 20 is provided in the ventilation cavity 13 to divide the ventilation cavity 13 into multiple groups of sub-cavities 130 arranged in sequence along the first direction, and each group of sub-cavities 130 includes multiple sub-cavities 130 arranged in sequence along the second direction, and two adjacent sub-cavities 130 are arranged to be connected to each other. In this way, the ventilation cavity 13 is divided into multiple groups of sub-cavities 130 by installing the component 20, and each group of sub-cavities 130 includes multiple sub-cavities 130, thereby increasing the gas flow path in the ventilation cavity 13, so that the gas generated during the casting process or the cooling process of the casting can flow more evenly and quickly from the inside of the sand mold through multiple air inlets into the multiple sub-cavities 130 respectively, thereby significantly improving the exhaust efficiency, and at the same time, it can promote the circulation of external normal temperature gas at the bottom of the sand mold to form a good flow of cold and hot air, thereby helping the casting to dissipate heat more evenly during the cooling process.
[0030] like Figure 2 As shown, the mounting assembly 20 includes a plurality of first mounting plates 21 and a plurality of second mounting plates 22; the plurality of first mounting plates 21 are spaced apart along the first direction, the two ends of the plurality of first mounting plates 21 are respectively connected to the two opposite inner walls of the mounting panel 15, and one side edge of the plurality of first mounting plates 21 is respectively connected to the placement plate 16; the plurality of second mounting plates 22 are spaced apart along the second direction, the two ends of the plurality of second mounting plates 22 are respectively connected to the two opposite inner walls of the mounting panel 15, and one side edge of the plurality of second mounting plates 22 is respectively connected to the placement plate 16, so that a sub-cavity 130 is formed between two adjacent first mounting plates 21 and two adjacent second mounting plates 22. In this way, by setting up multiple first mounting plates 21 and multiple second mounting plates 22, the ventilation cavity 13 is divided into multiple sub-cavities 130, and adjacent sub-cavities 130 are interconnected, which not only greatly improves the efficiency of gas discharge from the sand mold during the casting process, but also the gas is no longer discharged through a single path, but can circulate through multiple paths, avoiding local gas accumulation, reducing the formation of pores in the casting, and improving the quality of the casting. At the same time, during the cooling process of the casting, the presence of multiple sub-cavities 130 can promote the circulation of hot and cold air between the bottom of the casting and the supporting base 1. Since each sub-cavity 130 is connected, the air can flow more evenly under the casting, which helps to balance the cooling rate of the casting and reduce internal defects or casting deformation caused by uneven cooling. In addition, multiple first mounting plates 21 and multiple second mounting plates 22 are respectively connected to the mounting enclosure 15 and the placement plate 16 to form a stable frame structure, which enhances the overall rigidity and stability of the exhaust structure 10 and helps to ensure the horizontal state of the placement plane 11.
[0031] In this embodiment, each first mounting plate 21 is provided with a plurality of first ventilation holes 210 at intervals along its extension direction, and at least one first ventilation hole 210 on each first mounting plate 21 is respectively connected to the corresponding sub-cavities 130 located on both sides of the first mounting plate 21; each first mounting plate 21 is provided with a plurality of first ventilation grooves 211 at intervals on one side away from the placement plate 16, so that when the exhaust structure 10 is installed on the supporting base surface 1, the first ventilation grooves 211 and the supporting base surface 1 form a first ventilation port, and the plurality of first ventilation ports are respectively connected to the plurality of sub-cavities 130 located on both sides of the first mounting plate 21. This increases the flow path of gas within the vent cavity 13, allowing gas to flow along the first direction into any one of the sub-cavities 130 through the first vent hole 210 and the first vent groove 211, which form the first vent opening with the support base 1, and then be exhausted from the exhaust holes 14 corresponding to the sub-cavity 130 along the circumference of the mounting plate 15. This effectively improves the gas flow efficiency and reduces the possibility of gas accumulation within the sand mold. Furthermore, during the cooling process of the casting, heat generated by the casting and ambient temperature air can be circulated along the first direction within the multiple sub-cavities 130, accelerating the cooling of the casting.
[0032] In this embodiment, each second mounting plate 22 is provided with a plurality of second ventilation holes 220 at intervals along its extension direction, and at least one second ventilation hole 220 on each second mounting plate 22 is respectively connected to the corresponding sub-cavities 130 located on both sides of the second mounting plate 22; each second mounting plate 22 is provided with a plurality of second ventilation grooves 221 at intervals on one side away from the placement plate 16, so that when the exhaust structure 10 is installed on the supporting base 1, the second ventilation grooves 221 and the supporting base 1 form a second ventilation port, and the plurality of second ventilation ports are respectively connected to the plurality of sub-cavities 130 located on both sides of the second mounting plate 22. This increases the flow path of gas within the vent cavity 13, allowing gas to flow along the second direction into any sub-cavity 130 in any group of sub-cavities 130 through the second vent holes 220 and the second vent formed by the second gas groove and the support base 1, and then be discharged from the exhaust holes 14 corresponding to the sub-cavity 130 along the circumference of the mounting plate 15. This effectively improves the gas circulation efficiency and reduces the possibility of gas accumulation in the sand mold. Furthermore, during the cooling process of the casting, the heat generated by the casting and the external ambient temperature gas can be circulated along the second direction within the multiple sub-cavities 130, accelerating the cooling of the casting.
[0033] Optionally, the spacing between two adjacent first mounting plates 21 is a first preset value, and the first preset value L1 satisfies: 30cm≤L1≤50cm; the spacing between two adjacent second mounting plates 22 is a second preset value, and the second preset value L2 satisfies: 30cm≤L2≤50cm. In this way, the smoothness of the gas flow in the ventilation cavity 13 can be ensured, and the gas flow obstruction caused by too small a spacing or the uneven gas distribution caused by too large a spacing can be avoided, which helps to improve the gas discharge efficiency and reduce the formation of pores in the casting. In addition, the multiple first mounting plates 21 and the multiple second mounting plates 22 are respectively arranged at equal intervals, so that the size of the sub-cavity 130 can adapt to the casting requirements of castings of different sizes, and has good versatility and flexibility.
[0034] Specifically, the air inlet 12 is a circular hole, and the diameter of the air inlet 12 is a first predetermined value, and the first predetermined value R1 satisfies: 5cm≤R1≤8cm; the exhaust hole 14 is a circular hole, and the diameter of the exhaust hole 14 is a second predetermined value, and the second predetermined value R2 satisfies: 5cm≤R2≤8cm. In this way, it can be ensured that during the casting process, the gas generated in the sand mold can smoothly flow into the ventilation cavity 13 and be discharged through the exhaust hole 14. An aperture that is too small may increase the resistance to gas flow and affect the exhaust effect; while an aperture that is too large may increase the freedom of gas flow, but may reduce the stability of the sand mold and affect the molding quality of the casting, thereby effectively improving the exhaust efficiency and heat emission capacity of the casting casting exhaust device, while taking into account structural strength, cost control and manufacturing difficulty, thereby improving the quality of the casting and production efficiency.
[0035] In this embodiment, the first direction and the second direction are arranged perpendicular to each other. This allows the ventilation cavity 13 to form a grid-like structure, which not only increases the passage of gas within the ventilation cavity 13 but also reduces the resistance to gas flow, avoiding local excessive high or low gas pressure. This ensures that during the pouring and cooling process, the generated gas can be more evenly distributed and flowed and smoothly discharged from the sand mold, thereby reducing the risk of pores in the casting and improving the quality of the casting.
[0036] In this embodiment, the mounting panel 15, placement plate 16, and mounting assembly 20 are integrally formed. This arrangement reduces the number of connectors between the mounting panel 15, placement plate 16, and mounting assembly 20, preventing structural instability caused by loose or failed connectors and improving the mechanical strength and durability of the entire device. Furthermore, it reduces assembly errors, improves production efficiency and assembly accuracy, and helps reduce production costs.
[0037] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:
[0038] The casting pouring exhaust device includes an exhaust structure 10, which is arranged on a supporting base surface 1. The exhaust structure 10 has a placement plane 11 for connecting to the bottom of the sand box 100. A plurality of air inlet holes 12 are provided on the placement plane 11, and the plurality of air inlet holes 12 are respectively connected to the interior of the sand box 100; the exhaust structure 10 has a ventilation cavity 13 inside, and the exhaust structure 10 is provided with a plurality of exhaust holes 14 along its circumferential direction. The ventilation cavity 13 is respectively connected to the plurality of air inlet holes 12 and the plurality of exhaust holes 14, so that the gas generated inside the sand box 100 during the pouring process flows from the plurality of air inlet holes 12 into the ventilation cavity 13 and is discharged through the plurality of exhaust holes 14; wherein, the placement plane 11 and the supporting base surface 1 are arranged parallel to each other. In this way, the exhaust structure 10 is first set on the supporting base 1 and the placement plane 11 is adjusted to a state that is horizontal with the supporting base 1, and then the lower sand mold of the sand box 100 is placed on the placement plane 11 of the exhaust structure 10, which can ensure the horizontal state of the sand mold, avoid the dimensional deviation of the casting caused by the uneven sand mold, improve the dimensional accuracy and overall quality of the casting, and save time and labor compared to the traditional manual sand leveling. Then, after fixing multiple sand cores in the lower sand mold in turn, the middle sand mold and the upper sand mold are fixed in place in turn, and finally pouring is performed to obtain the casting During the pouring process, the combustibles in the sand mold will burn, so that a large amount of gas will be generated inside the sand mold and flow into the ventilation cavity 13 through the multiple air inlet holes 12 on the placement plane 11, and discharged through the multiple exhaust holes 14 on the circumference of the exhaust structure 10, so as to prevent the gas from entering the internal cavity of the sand mold and causing air hole defects in the casting, thereby improving the quality of the casting and reducing the scrap rate of the casting, thereby solving the problem in the prior art that the sand box 100 is difficult to discharge the gas generated during the pouring of the casting and the heat generated during the cooling of the casting, resulting in low casting quality.
[0039] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.
[0040] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.
[0041] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.
[0042] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0043] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.
Claims
1. A casting pouring exhaust device, characterized in that: include: An exhaust structure (10) is arranged on a supporting base surface (1), the exhaust structure (10) having a placement plane (11) for connecting to the bottom of the sand box (100), the placement plane (11) being provided with a plurality of air inlet holes (12), the plurality of air inlet holes (12) being respectively connected to the interior of the sand box (100); The exhaust structure (10) has a ventilation cavity (13) inside, and the exhaust structure (10) is provided with a plurality of exhaust holes (14) along its circumferential direction, and the ventilation cavity (13) is respectively connected with the plurality of air inlet holes (12) and the plurality of exhaust holes (14), so that the gas generated inside the sand box (100) during the pouring process flows from the plurality of air inlet holes (12) into the ventilation cavity (13) and is discharged through the plurality of exhaust holes (14); Wherein, the placement plane (11) and the supporting base surface (1) are arranged parallel to each other.
2. The casting pouring exhaust device according to claim 1, characterized in that: A pit (2) is provided on the supporting base surface (1), at least a portion of the exhaust structure (10) is located at the pit mouth of the pit (2), and the ventilation cavity (13) is in communication with the pit (2), and the casting exhaust device further comprises: An exhaust component (3) is arranged in the pit (2) and the exhaust port of the exhaust component (3) is located below the ventilation cavity (13), so that the exhaust component (3) can extract the gas generated by the casting in the sand box (100) during the cooling process into the pit (2).
3. The casting pouring exhaust device according to claim 1, characterized in that: The exhaust structure (10) comprises: Install the enclosure (15); A placement plate (16) is connected to the installation enclosure (15) to enclose the ventilation cavity (13), and a plurality of the air inlet holes (12) are respectively arranged on the placement plate (16). A mounting assembly (20) is provided in the ventilation cavity (13) so that the ventilation cavity (13) is divided into a plurality of groups of sub-cavities (130) arranged in sequence along a first direction, each group of the sub-cavities (130) includes a plurality of the sub-cavities (130) arranged in sequence along a second direction, and two adjacent sub-cavities (130) are arranged to be interconnected.
4. The casting pouring exhaust device according to claim 3, characterized in that: The mounting assembly (20) comprises: A plurality of first mounting plates (21) are spaced apart along the first direction, two ends of the plurality of first mounting plates (21) are respectively connected to two opposite inner walls of the mounting enclosure (15), and one side of the plurality of first mounting plates (21) is respectively connected to the placement plate (16); A plurality of second mounting plates (22) are spaced apart along the second direction, the two ends of the plurality of second mounting plates (22) are respectively connected to the two opposite inner walls of the mounting enclosure (15), and the one side edges of the plurality of second mounting plates (22) are respectively connected to the placement plate (16), so that the sub-cavity (130) is enclosed between two adjacent first mounting plates (21) and two adjacent second mounting plates (22).
5. The casting pouring exhaust device according to claim 4, characterized in that: Each of the first mounting plates (21) is provided with a plurality of first vent holes (210) at intervals along its extension direction, and at least one of the first vent holes (210) on each of the first mounting plates (21) is respectively communicated with the corresponding sub-cavities (130) located on both sides of the first mounting plate (21); and / or, A plurality of first ventilation grooves (211) are provided at intervals on one side of each first mounting plate (21) away from the placement plate (16), so that when the exhaust structure (10) is mounted on the support base (1), the first ventilation grooves (211) and the support base (1) form a first ventilation port, and the plurality of first ventilation ports are respectively connected to the plurality of sub-cavities (130) located on both sides of the first mounting plate (21).
6. The casting pouring exhaust device according to claim 4, characterized in that: Each second mounting plate (22) is provided with a plurality of second vent holes (220) at intervals along its extension direction, and at least one second vent hole (220) on each second mounting plate (22) is respectively communicated with the corresponding sub-cavities (130) located on both sides of the second mounting plate (22); and / or, A plurality of second ventilation grooves (221) are provided at intervals on one side of each second mounting plate (22) away from the placement plate (16), so that when the exhaust structure (10) is mounted on the support base (1), the second ventilation grooves (221) and the support base (1) form a second ventilation port, and the plurality of second ventilation ports are respectively connected to the plurality of sub-cavities (130) located on both sides of the second mounting plate (22).
7. The casting pouring exhaust device according to claim 4, characterized in that: The distance between two adjacent first mounting plates (21) is a first preset value, and the first preset value L1 satisfies: 30cm≤L1≤50cm; and / or, The distance between two adjacent second mounting plates (22) is a second preset value, and the second preset value L2 satisfies: 30cm≤L2≤50cm.
8. The casting pouring exhaust device according to claim 1, characterized in that: The air inlet hole (12) is a circular hole, and the diameter of the air inlet hole (12) is a first predetermined value, and the first predetermined value R1 satisfies: 5cm≤R1≤8cm; and / or, The exhaust hole (14) is a circular hole, and the diameter of the exhaust hole (14) is a second predetermined value, and the second predetermined value R2 satisfies: 5cm≤R2≤8cm.
9. The casting pouring exhaust device according to claim 3, characterized in that: The first direction and the second direction are arranged perpendicular to each other.
10. The casting pouring exhaust device according to claim 3, characterized in that: The installation enclosure (15), the placement plate (16) and the installation assembly (20) are an integrally formed structure.