A rapid prototyping shell casting mold

Abstract

The utility model relates to a rapid prototyping shell casting mold, comprising an upper mold, a lower mold and a base body, wherein the lower mold is arranged at the upper end of the base body, the lower mold is provided with a molding cavity, a cooling component is provided on the side of the base body close to the molding cavity, the upper mold comprises a cover plate and a casting part, the cover plate is provided with a through hole opposite to the molding cavity, a casting cavity is formed in the casting part, a plurality of molecular sieves are provided in the casting cavity, and a first casting port and a second casting port connected to the casting cavity are respectively provided at both ends of the casting part, the second casting port is opposite to the through hole. The utility model accelerates the drying speed of the casting material, improves the molding efficiency of the product, and improves the quality of the product by arranging the cooling component and the molecular sieve.

Description

Technical Field

[0001] The utility model relates to the technical field of shell casting, in particular to a rapid prototyping shell casting mould. Background Art

[0002] In the prior art, shell products are mainly produced by casting molds. The upper mold and the lower mold are matched to form a casting cavity. The melted casting material is injected into the casting cavity. The casting material is cooled to form a shell. However, due to the presence of a lot of water in the casting material, the drying speed is slow, resulting in low product molding efficiency.

[0003] On the other hand, since the temperature of the casting material is relatively high, a long time is required to wait for the casting material to cool down during the casting process, further reducing the molding efficiency of the product.

[0004] Therefore, a mold that can improve the yield rate of shells is particularly needed to solve the problems existing in the prior art. Utility Model Content

[0005] The utility model aims to provide a rapid prototyping shell casting mold, which accelerates the drying speed of the casting material by arranging a cooling component and a molecular sieve, improves the molding efficiency of the product, and improves the quality of the product.

[0006] A rapid prototyping shell casting mold, comprising an upper mold, a lower mold and a base body, wherein the lower mold is arranged at the upper end of the base body, the lower mold is provided with a molding cavity, and a cooling component is provided on the side of the base body close to the molding cavity, the upper mold comprises a cover plate and a casting part, the cover plate is provided with a through hole opposite to the molding cavity, a casting cavity is formed in the casting part, a plurality of molecular sieves are provided in the casting cavity, and a first casting port and a second casting port connected to the casting cavity are respectively provided at both ends of the casting part, and the second casting port is opposite to the through hole.

[0007] In the above technical scheme, a molding cavity is provided in the lower mold, and the casting material flows out from the through hole and fills into the molding cavity, and the casting material is cooled in the molding cavity to form a shell. A cooling component is provided on the side of the seat body close to the molding cavity, and the cooling component can quickly cool the product after the casting is completed, thereby improving production efficiency. Through the cooling component, the user can input cold air or cold water into the seat body to control the temperature of the lower mold, thereby accelerating the solidification process of the casting material and reducing the deformation and cracks of the product. The upper mold includes a cover plate and a casting part, wherein the cover plate is provided with a through hole opposite to the molding cavity, so as to facilitate the casting material to flow into the molding cavity, a casting cavity is formed in the casting part, and a plurality of molecular sieves are provided in the casting cavity, and the molecular sieves can still maintain good adsorption performance under high temperature environment, and can be used to remove impurities and moisture in the casting material. A first casting port and a second casting port connected to the casting cavity are provided at both ends of the casting part, wherein the second casting port is opposite to the through hole of the cover plate, so as to ensure that the casting material can flow smoothly into the molding cavity. During the casting process, the casting material is first injected from the first casting port, and then flows into the casting cavity. At this time, the molecular sieve arranged in the casting cavity absorbs the excess moisture and gas in the casting material, and finally flows from the second casting port to the through hole, flows out from the through hole and fills the molding cavity. After the casting material loses moisture, the drying speed can be accelerated, and the molding speed of the product is further improved. The utility model greatly improves the molding efficiency and quality of the product by arranging the molecular sieve in the upper mold and the cooling component in the seat body.

[0008] Furthermore, a partition is provided between the casting cavity and the second casting port, and the partition is provided with a plurality of leakage holes arranged at intervals.

[0009] In the above technical solution, too fast casting may cause the gas in the molding cavity to be unable to be effectively discharged, forming pores. Through the leakage holes set on the partition, the flow rate of the casting material flowing from the casting cavity into the molding cavity can be accurately controlled, ensuring the stability and accuracy of the casting process, thereby obtaining a higher quality molded product.

[0010] Furthermore, the diameter of the leakage hole is smaller than the diameter of the molecular sieve.

[0011] In the above technical solution, since the diameter of the leakage hole is smaller than the diameter of the molecular sieve, the molecular sieve cannot enter the molding cavity through the leakage hole, ensuring that the molecular sieve always stays in the casting cavity during the casting process and continues to play its role in removing impurities and moisture, thereby ensuring the purity of the casting material.

[0012] Furthermore, a hot nitrogen inlet communicating with the casting cavity is provided on the outer side of the casting part.

[0013] In the above technical solution, before casting, hot nitrogen is input into the casting cavity through the hot nitrogen inlet, so that the interior of the upper mold can be preheated. Preheating helps to reduce the temperature difference between the upper mold and the casting material, reduce thermal stress, and prevent the product from deforming or cracking due to excessive temperature difference. Hot nitrogen can also be used to dry the molecular sieve in the casting cavity to ensure that it can fully absorb water during the casting process and reduce the pores and shrinkage cavities inside the casting. By preheating and drying, the solidification time of the product can be shortened and the production efficiency can be improved.

[0014] Furthermore, the hot nitrogen inlet is arranged between the second casting port and the through hole.

[0015] In the above technical solution, the density of hot nitrogen is smaller than that of air, so the hot nitrogen will float upward. Placing the hot nitrogen between the second casting port and the through hole can ensure that the casting cavity and the molecular sieve in the casting cavity are fully in contact with the hot nitrogen, thereby ensuring the preheating effect of the casting cavity and the activity of the molecular sieve.

[0016] Furthermore, the cooling assembly includes a cooling pipe, a water inlet pipe and a water outlet pipe. The cooling pipe is arranged in the seat body, and the water inlet pipe and the water outlet pipe are respectively connected to two ends of the cooling pipe.

[0017] In the above technical solution, the water inlet pipe is used to inject cooling water into the cooling pipe, while the water outlet pipe is responsible for discharging the cooling water that has absorbed heat. After the casting material is cast into the molding cavity, the water inlet pipe is connected to the cooling pipe to pass cooling water. The cooling water quickly cools the casting material in the molding cavity through the cooling pipe, which can shorten the cooling time of the product and improve the molding efficiency of the product. At the same time, the cooling water can flow out from the water outlet pipe and be collected. After cooling, it can be recycled, which improves the utilization rate of water resources and reduces the waste of resources.

[0018] Furthermore, a placement groove is provided in the seat body, and the cooling pipe is arranged in the placement groove.

[0019] In the above technical solution, by providing a special placement groove in the seat body, the cooling pipe can be stably placed therein, avoiding the cooling pipe from moving or shaking randomly inside the mold, thereby ensuring the stability and reliability of the mold structure. At the same time, the design of the placement groove can make the cooling pipe closer to the lower mold, so as to more effectively transfer cooling water to the molding cavity area, improve cooling efficiency, ensure that the product can be cooled quickly and evenly, and reduce product deformation or defects caused by temperature changes.

[0020] Furthermore, a plurality of support columns are provided between the casting portion and the cover plate.

[0021] In the above technical solution, the cover plate will be subjected to pressure during the casting process and is prone to deformation. The support column can effectively share the load borne by the cover plate during the casting process, thereby reducing the stress on the cover plate and extending the service life of the upper mold.

[0022] Furthermore, the cover plate is provided with a plurality of first mounting holes penetrating the cover plate, the lower mold is provided with second mounting holes opposite to the first mounting holes, and the cover plate and the lower mold are connected through the first mounting holes and the second mounting holes.

[0023] In the above technical solution, the design of the first mounting hole and the second mounting hole facilitates the user to tightly connect the upper mold and the lower mold together through bolts, pins or other connectors, thereby ensuring the stability and reliability of the mold during the casting process and reducing casting defects caused by mold movement or misalignment. By ensuring that the relative position and size of the first mounting hole and the second mounting hole match, accurate alignment between the upper mold and the lower mold can be achieved, further ensuring the shape and quality of the product.

[0024] Furthermore, the size of the cover plate is matched with the size of the lower mold.

[0025] In the above technical solution, the matching size helps to achieve stable assembly between the cover plate and the lower mold, avoiding casting defects caused by mold movement or misalignment during the casting process. At the same time, the precisely matched mold size can reduce the leakage of casting materials at the mold joints, ensure the integrity of the product, and reduce casting material waste and cleaning work.

[0026] Compared with the prior art, the beneficial effects of the utility model are:

[0027] By setting up a cooling component, the cooling component includes a cooling pipe, a water inlet pipe and a water outlet pipe. After the casting material is cast into the molding cavity, cooling water is input into the cooling pipe through the water inlet pipe. Under the action of the cooling water, the molding cavity can be quickly cooled down to reduce the temperature of the casting material, shorten the cooling time of the casting material, and improve work efficiency.

[0028] By setting a molecular sieve in the casting cavity, the casting material flows into the casting cavity after passing through the first casting port. The molecular sieve in the casting cavity absorbs moisture in the casting material, so that the casting material can dry faster after entering the molding cavity, further improving the molding efficiency of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the upper mold of an embodiment of the utility model.

[0030] Figure 2 It is a schematic cross-sectional structure diagram of the upper mold according to an embodiment of the utility model.

[0031] Figure 3 It is a structural schematic diagram of the lower mold of an embodiment of the utility model.

[0032] Figure 4 It is a schematic diagram of the internal structure of the seat body of an embodiment of the utility model.

[0033] Description of Figure Numbers

[0034] Upper mold; 101, cover plate; 1011, through hole; 1012, first mounting hole; 102, casting part; 1021, casting cavity; 1022, first casting port; 1023, second casting port; 1024, hot nitrogen inlet;

[0035] Lower mold; 201, molding cavity; 202, second mounting hole;

[0036] Seat body; 301, placement slot;

[0037] Cooling assembly; 401, cooling pipe; 402, water inlet pipe; 403, water outlet pipe;

[0038] Molecular sieves;

[0039] Partition; 601, leak hole;

[0040] Support column. DETAILED DESCRIPTION

[0041] The rapid prototyping shell casting mold of the utility model will be further described in detail below in conjunction with specific embodiments and drawings. The drawings provide preferred embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein.

[0042] Please refer to Figures 1 to 3 In a preferred embodiment, the rapid prototyping shell casting mold of the utility model comprises an upper mold 1, a lower mold 2 and a base body 3, wherein the lower mold 2 is arranged at the upper end of the base body 3, the lower mold 2 is provided with a molding cavity 201, and a cooling assembly 4 is provided on the side of the base body 3 close to the molding cavity 201, the upper mold 1 comprises a cover plate 101 and a casting part 102, the cover plate 101 is provided with a through hole 1011 opposite to the molding cavity 201, a casting cavity 1021 is formed in the casting part 102, a plurality of molecular sieves 5 are arranged in the casting cavity 1021, and a first casting port 1022 and a second casting port 1023 connected to the casting cavity 1021 are respectively provided at both ends of the casting part 102, and the second casting port 1023 is opposite to the through hole 1011.

[0043] It can be known from the above technical scheme that a molding cavity 201 is provided in the lower mold 2, and the casting material flows out from the through hole 1011 and fills into the molding cavity 201, and the casting material is cooled in the molding cavity 201 to form a shell. A cooling component 4 is provided on the side of the seat body 3 close to the molding cavity 201, and the cooling component 4 can quickly cool the product after the casting is completed, thereby improving production efficiency. Through the cooling component 4, the user can input cold air or cold water into the seat body 3 to control the temperature of the lower mold 2, thereby accelerating the solidification process of the casting material and reducing the deformation and cracks of the product. The upper mold 1 includes a cover plate 101 and a casting part 102, wherein the cover plate 101 is provided with a through hole 1011 opposite to the molding cavity 201, so as to facilitate the casting material to flow into the molding cavity 201, and a casting cavity 1021 is formed in the casting part 102, and a plurality of molecular sieves 5 are provided in the casting cavity 1021. The molecular sieve 5 can still maintain good adsorption performance under high temperature environment, and can be used to remove impurities and moisture in the casting material. The two ends of the casting part 102 are provided with a first casting port 1022 and a second casting port 1023 connected to the casting cavity 1021, wherein the second casting port 1023 is opposite to the through hole 1011 of the cover plate 101, so as to ensure that the casting material can smoothly flow into the molding cavity 201. During the casting process, the casting material is first injected from the first casting port 1022, and then flows into the casting cavity 1021. At this time, the molecular sieve 5 arranged in the casting cavity 1021 will absorb the excess moisture and gas in the casting material, and finally flow from the second casting port 1023 to the through hole, and then flow out from the through hole 1011 and fill the molding cavity 201. After the casting material loses moisture, the drying speed can be accelerated, and the molding speed of the product is further improved. The utility model greatly improves the molding efficiency and quality of the product by arranging the molecular sieve 5 on the upper mold 1 and arranging the cooling component 4 on the seat body 3.

[0044] It should be noted that the casting part of the utility model is a funnel-shaped structure, and the casting material can smoothly flow into the molding cavity 201 under the guidance of the casting part 102. At the same time, the funnel-shaped structure can form a pause area during the casting process, so that the casting material has a buffer process before flowing into the molding cavity 201, which helps to reduce the generation of bubbles and improve the quality of the casting.

[0045] Molecular sieve 5 can still maintain good adsorption performance under high temperature environment, can quickly absorb excess water in casting material, help reduce pores and shrinkage holes in products, and improve product density and mechanical properties. In addition to water, molecular sieve 5 can also adsorb other gases in casting material, such as hydrogen, oxygen and nitrogen, etc. If these gases are not removed in time, bubbles may be formed in casting material, affecting product quality and performance. In addition, molecular sieve 5 can still maintain good adsorption performance under high temperature environment, which is particularly important for casting process that needs to be carried out at high temperature. And the chemical stability of molecular sieve is also very good, and it is not easy to react with casting material. At the same time, molecular sieve 5 can be regenerated by heating and other methods after adsorption saturation, restore its adsorption capacity, and reduce production cost. Using molecular sieve 5 as the water-absorbing material in the utility model can significantly improve product quality and performance, reduce production cost, and enhance the adaptability and flexibility of mold. Of course, it is not limited to molecular sieve 5, and other materials can also be used, as long as effective water absorption is ensured without affecting the quality of casting material.

[0046] Please refer to Figure 2 A partition 6 is provided between the casting cavity 1021 and the second casting port 1023, and the partition 6 is provided with a plurality of leak holes 601 arranged at intervals. Too fast casting may cause the gas in the molding cavity 201 to be unable to be effectively discharged, forming pores. Through the leak holes 601 arranged on the partition 6, the flow rate of the casting material flowing from the casting cavity 1021 into the molding cavity 201 can be accurately controlled to ensure the stability and accuracy of the casting process, thereby obtaining a higher quality molded product. Moreover, if the casting material contains impurities, these impurities may be blocked by the partition 6 and the leak holes 601 during the casting process, thereby reducing the possibility of impurities entering the molding cavity to a certain extent. Although the main impurity filtering function is performed by the molecular sieve 5 in the casting cavity 1021, the design of the partition 6 and the leak holes 601 can provide additional filtering effects.

[0047] It should be noted that the diameter of the leak hole 601 is smaller than the diameter of the molecular sieve 5. Since the diameter of the leak hole 601 is smaller than the diameter of the molecular sieve 5, the molecular sieve 5 cannot enter the molding cavity 201 through the leak hole 601, ensuring that the molecular sieve 5 always stays in the casting cavity 1021 during the casting process, and continues to play its role in removing impurities and moisture, thereby ensuring the purity of the casting material. The molecular sieve is an important filtering element in the casting cavity 1021, which can effectively remove impurities and moisture in the casting material. If the molecular sieve 5 is lost in the molding cavity 201, not only will the filtering effect be lost, but it may also have an adverse effect on the quality of the molded product. Therefore, the design that the leak hole 601 diameter is smaller than the molecular sieve 5 diameter helps to maintain the filtering effect in the casting cavity 1021.

[0048] In addition, the distribution and size of the leak holes 601 can be fine-tuned as needed to adapt to different casting processes and casting requirements, thereby improving the adaptability and flexibility of the mold.

[0049] Please refer to Figure 1 and Figure 2 , a hot nitrogen inlet 1024 connected to the casting cavity 1021 is provided on the outside of the casting part 102. Hot nitrogen enters the casting cavity 1021 through the inlet, and by utilizing its high temperature and drying characteristics, it can effectively remove moisture that may exist in the casting cavity 1021, reduce the generation of pores in the casting, and improve the quality of the casting. Before casting, hot nitrogen is input into the casting cavity through the hot nitrogen inlet 1024, and the interior of the upper mold can be preheated. Preheating helps to reduce the temperature difference between the upper mold 1 and the casting material, reduce thermal stress, and prevent the product from being deformed or cracked due to excessive temperature difference. Hot nitrogen can also be used to dry the molecular sieve 5 in the casting cavity 1021 to ensure that it can fully absorb water during the casting process and reduce pores and shrinkage holes inside the casting. By preheating and drying, the solidification time of the product can be shortened and production efficiency can be improved.

[0050] Specifically, the hot nitrogen inlet 1024 is disposed between the second casting port 1023 and the through hole 1011. The density of hot nitrogen is smaller than that of air, so the hot nitrogen will float upwards. Placing the hot nitrogen between the second casting port 1023 and the through hole 1011 can ensure that the casting cavity 1021 and the molecular sieve 5 in the casting cavity 1021 are fully in contact with the hot nitrogen, thereby ensuring the preheating effect of the casting cavity 1021 and the activity of the molecular sieve 5.

[0051] Please refer to Figure 3 and Figure 4 The cooling assembly 4 includes a cooling pipe 401, a water inlet pipe 402 and a water outlet pipe 403. The cooling pipe 401 is arranged in the seat body 3, and the water inlet pipe 402 and the water outlet pipe 403 are respectively connected to the two ends of the cooling pipe 401. The water inlet pipe 402 is used to inject cooling water into the cooling pipe 401, and the water outlet pipe 403 is responsible for discharging the cooling water that has absorbed heat. After the casting material is cast into the molding cavity 201, the cooling water is connected to the water inlet pipe 402 to pass cooling water into the cooling pipe 401. The cooling water quickly cools the casting material in the molding cavity 201 through the cooling pipe 401, which can shorten the cooling time of the product and improve the molding efficiency of the product. At the same time, the cooling water can flow out from the water outlet pipe 403 and be collected. After cooling, it can be recycled, which improves the utilization rate of water resources and reduces the waste of resources.

[0052] During the specific implementation, a monitoring system can be set up to monitor the temperature and flow of the water inlet and outlet, and to promptly detect abnormal conditions of the cooling system, such as excessively high cooling water temperature and insufficient flow, so as to take corresponding measures to avoid damage to the mold and product.

[0053] Also, please refer to Figure 4 , a placement groove 301 is provided in the seat body 3, and the cooling pipe 401 is provided in the placement groove 301. By providing a special placement groove 301 in the seat body 3, the cooling pipe 401 can be stably placed therein, avoiding the cooling pipe 401 from moving or shaking randomly inside the mold, thereby ensuring the stability and reliability of the mold structure. At the same time, the design of the placement groove 301 can make the cooling pipe 401 closer to the lower mold 2, so as to more effectively transfer the cooling water to the molding cavity 201 area, improve the cooling efficiency, ensure that the product can be cooled quickly and evenly, and reduce product deformation or defects caused by temperature changes. Since the cooling pipe 401 is placed in the placement groove 301, when the cooling pipe 401 needs to be repaired or replaced, the cooling pipe 401 can be easily removed from the placement groove 301 without disassembling the entire mold or the seat body 3. This greatly reduces the maintenance cost and time, and improves the use efficiency and life of the mold.

[0054] Please refer to Figure 1 A plurality of support columns 7 are provided between the casting part 102 and the cover plate 101. The cover plate 101 is subjected to pressure during the casting process and is easily deformed. The support columns 7 can effectively share the load borne by the cover plate 101 during the casting process, thereby reducing the stress of the cover plate 101 and extending the service life of the upper mold 1.

[0055] Further, the cover plate 101 is provided with a plurality of first mounting holes 1012 penetrating the cover plate 101, and the lower mold 2 is provided with a second mounting hole 202 opposite to the first mounting hole 1012, and the cover plate 101 and the lower mold 2 are connected through the first mounting holes 1012 and the second mounting holes 202. The design of the first mounting holes 1012 and the second mounting holes 202 facilitates the user to tightly connect the upper mold 1 and the lower mold 2 together through bolts, pins or other connectors, thereby ensuring the stability and reliability of the mold during the casting process and reducing casting defects caused by mold movement or misalignment. By ensuring that the relative position and size of the first mounting holes 1012 and the second mounting holes 202 match, accurate alignment between the upper mold 1 and the lower mold 2 can be achieved, further ensuring the shape and quality of the product. The size and specifications (such as diameter, depth, etc.) of the first mounting holes 1012 and the second mounting holes 202 need to be determined according to the specific mold design and application requirements. For example, for mounting holes that need to withstand greater forces, a larger diameter and depth may need to be designed to ensure sufficient strength.

[0056] In this embodiment, the size of the cover plate 101 is matched with the size of the lower mold 2. The matched size helps to achieve stable assembly between the cover plate 101 and the lower mold 2, avoiding casting defects caused by mold movement or misalignment during the casting process. At the same time, the precisely matched mold size can reduce the leakage of the casting material at the mold joint, ensure the integrity of the product, and reduce the waste of casting materials and cleaning work.

[0057] It should be noted that the molding cavity 201 of the present invention is not limited to one shape. When in use, the shape of the molding cavity 201 can be changed according to the specific usage scenario to meet the usage requirements of different products.

[0058] In the description of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0059] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0060] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] Although the utility model is described in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes based on the above content. Therefore, all such substitutions, improvements and changes are included in the spirit and scope of the appended claims.

Claims

1. A rapid prototyping shell casting mold, characterized in that: It includes an upper mold, a lower mold and a base body, the lower mold is arranged at the upper end of the base body, the lower mold is provided with a molding cavity, the base body is provided with a cooling component on a side close to the molding cavity, the upper mold includes a cover plate and a casting part, the cover plate is provided with a through hole opposite to the molding cavity, a casting cavity is formed in the casting part, a plurality of molecular sieves are arranged in the casting cavity, and a first casting port and a second casting port connected to the casting cavity are respectively provided at both ends of the casting part, and the second casting port is opposite to the through hole.

2. The rapid prototyping shell casting mold according to claim 1, characterized in that: A partition is provided between the casting cavity and the second casting port, and the partition is provided with a plurality of leakage holes arranged at intervals.

3. The rapid prototyping shell casting mold according to claim 2, characterized in that: The diameter of the leakage hole is smaller than the diameter of the molecular sieve.

4. The rapid prototyping shell casting mold according to claim 1, characterized in that: A hot nitrogen inlet communicating with the casting cavity is arranged on the outer side of the casting part.

5. The rapid prototyping shell casting mold according to claim 4, characterized in that: The hot nitrogen inlet is arranged between the second casting port and the through hole.

6. The rapid prototyping shell casting mold according to claim 1, characterized in that: The cooling assembly comprises a cooling pipe, a water inlet pipe and a water outlet pipe. The cooling pipe is arranged in the seat body. The water inlet pipe and the water outlet pipe are respectively connected to two ends of the cooling pipe.

7. The rapid prototyping shell casting mold according to claim 6, characterized in that: The seat body is provided with a placement groove, and the cooling pipe is arranged in the placement groove.

8. The rapid prototyping shell casting mold according to claim 1, characterized in that: A plurality of support columns are arranged between the casting part and the cover plate.

9. The rapid prototyping shell casting mold according to claim 1, characterized in that: The cover plate is provided with a plurality of first mounting holes penetrating the cover plate, the lower mold is provided with second mounting holes opposite to the first mounting holes, and the cover plate is connected to the lower mold through the first mounting holes and the second mounting holes.

10. The rapid prototyping shell casting mold according to claim 1, characterized in that: The size of the cover plate is matched with the size of the lower mold.

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