Air-cooled steel casting mold

Abstract

The utility model relates to the field of mould, especially air -cooling steel iron water casting mould. Air -cooling steel iron water casting mould includes upper mould and lower mould, and upper mould upper side wall and lower mould lower side wall all fixedly installed have the heat dissipation fin, and the outward four side walls of upper mould and lower mould still are provided with heat dissipation groove a and heat dissipation groove b, lower mould is provided with the annular ventilation cavity of opening upwards, and the handle on lower mould is provided with the ventilation hole of communication with annular ventilation cavity. Upper mould and lower mould in the utility model all are equipped with the heat dissipation fin, and are provided with heat dissipation groove a and heat dissipation groove b in four side walls, and the lower mould is raised, can increase the contact area of mould surface and air, accelerate the heat dissipation speed, effectively improve the heat dissipation effect, air can enter annular ventilation cavity from the ventilation hole of handle and then flow out, make air more evenly contact mould surface, make the cooling speed of casting part each part consistent, reduce the stress concentration and deformation problem caused by uneven cooling.

Description

Technical Field

[0001] This utility model relates to the field of molds, and in particular to an air-cooled molten steel casting mold. Background Technology

[0002] Molds are various shapes and tools used in industrial production to obtain desired products through methods such as injection molding, blow molding, extrusion, and die casting. They primarily achieve the shaping of objects by changing the physical state of the material being molded. In the steel casting industry, the performance of casting molds plays a crucial role in the quality of castings and production efficiency. Traditional steel casting molds generally use water cooling or air cooling methods for cooling. While water cooling and air cooling methods offer fast cooling speeds, they require complex circulating water cooling and air cooling systems, resulting in high equipment costs and space requirements. Furthermore, uneven cooling can easily lead to stress concentration inside the casting, causing defects such as deformation and cracks.

[0003] Therefore, it is necessary to provide a new air-cooled molten steel casting mold to solve the above-mentioned technical problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an air-cooled molten steel casting mold with good cooling effect.

[0005] The air-cooled molten steel casting mold provided by this utility model includes an upper mold and a lower mold. The upper mold and the lower mold each have a casting cavity on their opposite sidewalls. The upper mold has a conical casting cylinder that communicates with the casting cavity and an exhaust hole. A set of handles is fixedly installed on the sidewalls of the upper mold and the lower mold that are far apart from each other. Heat dissipation fins are fixedly installed on the upper sidewall of the upper mold and the lower sidewall of the lower mold. Heat dissipation grooves a and b are also provided on the four outer sidewalls of the upper mold and the lower mold.

[0006] The lower mold has an annular ventilated cavity with its opening facing upwards, and the handle on the lower mold has a ventilated hole communicating with the annular ventilated cavity. The bottom of the lower mold is also fixedly installed with evenly distributed pads. The lower mold is equipped with a positioning mechanism and a connecting mechanism for connecting and fixing the upper mold and the lower mold.

[0007] Preferably, the positioning mechanism includes positioning rods, and multiple positioning rods are fixedly installed on the upper side wall of the lower mold, and the lower side wall of the upper mold is provided with positioning grooves that cooperate with the positioning rods.

[0008] Preferably, the connecting mechanism includes threaded columns, and two sets of connecting holes are provided on both the upper and lower molds, with a threaded column inserted into each connecting hole. The bottoms of the two threaded columns in each set are fixedly connected by a connecting plate, and a locking nut is threadedly connected to the upper end of each threaded column.

[0009] Preferably, a special-shaped plate is installed on the upper side wall of the upper mold, and a through hole is opened on the special-shaped plate to cooperate with the threaded post. The threaded post passes through the through hole, and the special-shaped plate is located between the upper mold and the locking nut and fits against the upper side wall of the upper mold.

[0010] Preferably, a connector is fixedly mounted on one of the handle ends located on the lower mold.

[0011] Preferably, an annular protrusion inserted into the upper section of the annular venting cavity is fixedly installed on the lower side wall of the upper mold.

[0012] Preferably, both the heat dissipation groove a and the heat dissipation groove b formed on the lower mold are connected to the annular venting cavity.

[0013] Preferably, the overall height of the pad is greater than the overall height of the heat dissipation fins located on the lower mold.

[0014] Compared with related technologies, the air-cooled molten steel casting mold provided by this utility model has the following beneficial effects:

[0015] 1. Both the upper and lower molds in this utility model are equipped with heat dissipation fins, and heat dissipation grooves a and b are opened on the four side walls. The block raises the lower mold, which can increase the contact area between the mold surface and the air, accelerate the heat dissipation speed, and effectively improve the heat dissipation effect. Air can enter the annular venting cavity through the vent hole of the handle and then flow out, allowing the air to contact the mold surface more evenly, so that the cooling rate of each part of the casting is consistent, reducing stress concentration and deformation problems caused by uneven cooling. The natural air cooling method is adopted, which does not require a complex cooling system, reducing equipment costs and operating difficulty. The air cooling process is relatively gentle, which helps to obtain castings with better surface quality and reduce the generation of surface defects.

[0016] 2. When accelerated cooling is required, this utility model can be air-cooled by a fan. Combined with the heat dissipation structure of the mold itself, the cooling effect is better, so that the mold can be air-cooled or air-cooled, thus improving the applicability. Attached Figure Description

[0017] Figure 1 A schematic diagram of a preferred embodiment of the air-cooled molten steel casting mold provided by this utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the upper structure of the upper mold shown;

[0019] Figure 3 for Figure 1 A schematic diagram of the lower structure of the upper mold shown;

[0020] Figure 4 for Figure 1 A schematic diagram of the upper structure of the lower mold shown;

[0021] Figure 5 for Figure 1 The diagram shows the lower structure of the lower mold.

[0022] Figure 6 for Figure 1 The diagram shows the structure of the connecting mechanism.

[0023] The following are the labeling elements in the diagram: 1. Upper mold; 11. Conical casting cylinder; 12. Vent hole; 13. Annular protrusion; 2. Lower mold; 21. Handle; 211. Annular venting cavity; 212. Vent hole; 213. Connector; 22. Pad; 23. Heat dissipation fins; 24. Heat dissipation groove a; 25. Heat dissipation groove b; 3. Positioning mechanism; 31. Positioning rod; 311. Positioning groove; 4. Connecting mechanism; 41. Connecting plate; 42. Threaded post; 422. Connecting hole; 43. Locking nut; 5. Irregular plate; 51. Through hole. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0025] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0026] Please see Figures 1 to 6 This utility model provides an air-cooled molten steel casting mold, comprising an upper mold 1 and a lower mold 2. Each of the upper mold 1 and the lower mold 2 has a casting cavity on one opposite sidewall. The upper mold 1 has a conical casting cylinder 11 connected to the casting cavity and an exhaust hole 12 fixedly installed on it. A set of handles 21 are fixedly installed on the opposite sidewalls of the upper mold 1 and the lower mold 2. Heat dissipation fins 2 are fixedly installed on the upper sidewall of the upper mold 1 and the lower sidewall of the lower mold 2. 3. Heat dissipation grooves a24 and b25 are also provided on the four outer side walls of the upper mold 1 and the lower mold 2; the lower mold 2 is provided with an annular ventilated cavity 211 with the opening facing upward, and the handle 21 on the lower mold 2 is provided with a vent hole 212 communicating with the annular ventilated cavity 211; the bottom of the lower mold 2 is also fixedly installed with evenly distributed pads 22; the lower mold 2 is equipped with a positioning mechanism 3; and the lower mold 2 is also equipped with a connecting mechanism 4 for connecting and fixing the upper mold 1 and the lower mold 2.

[0027] It should be noted that the casting cavity in this utility model is a commonly used technical means in this field, and therefore will not be described in detail. During use, the upper mold 1 and the lower mold 2 are connected and locked together by the connecting mechanism 4. Molten steel is injected into the casting cavity through the conical casting cylinder 11, and venting is carried out through the vent hole 12. After casting, the heat dissipation grooves a24 and b25 and heat dissipation fins 23 on the upper mold 1 and the lower mold 2 increase the contact area between the surfaces of the upper mold 1 and the lower mold 2 and the air, thereby improving their heat dissipation effect. At the same time, the lower mold 2 is raised by the pad block 22, so that the bottom of the lower mold 2 is off the ground. Air can enter the annular vent cavity 211 through the vent hole 212 of the handle 21, and then enter the handle from the other end. The air flows out through the vent hole 212 on the handle 21; both the upper mold 1 and the lower mold 2 in this utility model are equipped with heat dissipation fins, and heat dissipation grooves a24 and b25 are opened on the four side walls. The block raises the lower mold 2, which can increase the contact area between the mold surface and the air, accelerate the heat dissipation speed, and effectively improve the heat dissipation effect; air can enter the annular vent cavity 211 through the vent hole 212 of the handle 21 and then flow out, so that the air contacts the mold surface more evenly, making the cooling speed of each part of the casting consistent, reducing stress concentration and deformation problems caused by uneven cooling; the natural air cooling method is adopted, which does not require a complex cooling system, reducing equipment costs and operation difficulty; the air cooling process is relatively mild, which helps to obtain castings with better surface quality and reduce the generation of surface defects;

[0028] When it is necessary to accelerate the cooling of the casting, the mold can also be air-cooled by a fan. Due to the presence of heat dissipation grooves a24, b25 and fins 23, the cooling effect of the casting is better. When it is necessary to accelerate cooling, the mold can be air-cooled by a fan. Combined with the heat dissipation structure of the mold itself, the cooling effect is better, so that the mold can be air-cooled or air-cooled, thus improving the applicability.

[0029] In the embodiments of this utility model, please refer to Figure 1 , Figure 3 and Figure 4 The positioning mechanism 3 includes positioning rods 31. Multiple positioning rods 31 are fixedly installed on the upper side wall of the lower mold 2, and the lower side wall of the upper mold 1 is provided with positioning grooves 311 that cooperate with the positioning rods 31. The positioning rods 31 and positioning grooves 311 ensure that the casting cavities of the upper mold 1 and the lower mold 2 are stably connected when they are connected.

[0030] In the embodiments of this utility model, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 5The connecting mechanism 4 includes a threaded post 42. Both the upper mold 1 and the lower mold 2 are provided with two sets of connecting holes 422, and a threaded post 42 is inserted into each connecting hole 422. The bottoms of the two threaded posts 42 in each set are fixedly connected by a connecting plate 41. A locking nut 43 is threadedly connected to the upper end of the threaded post 42.

[0031] It should be noted that when assembling the upper mold 1 and the lower mold 2, the two threaded posts 42 on the connecting plate 41 are inserted into the connecting holes 422 at the bottom of the lower mold 2, and the threaded posts 42 extend out from the upper end of the connecting holes 422 of the upper mold 1. The threaded posts 42 are then locked by the locking nut 43. This threaded connection method can provide a large tightening force, ensuring that the upper mold 1 and the lower mold 2 are tightly connected during the casting process, without loosening or displacement, thus ensuring the stability and safety of the casting process. This is conducive to obtaining castings with qualified quality. At the same time, the connecting mechanism 4 has a simple structure, low manufacturing cost, and is easy to install and disassemble.

[0032] In the embodiments of this utility model, please refer to Figure 1 and Figure 6 A special-shaped plate 5 is installed on the upper side wall of the upper mold 1, and a through hole 51 is opened on the special-shaped plate 5 to cooperate with the threaded post 42. The threaded post 42 passes through the through hole 51. The special-shaped plate 5 is located between the upper mold 1 and the locking nut 43 and fits against the upper side wall of the upper mold 1.

[0033] It should be noted that before locking the threaded post 42 with the locking nut 43, the profile plate 5 is placed on the upper mold 1, and the threaded post 42 passes through the through hole 51 on the profile plate 5. The locking nut 43 is then used to lock it, which avoids the locking nut 43 directly contacting the upper mold 1. When tightening the locking nut 43, it can prevent the locking nut 43 from causing wear or indentation on the upper side wall of the upper mold 1, protect the surface quality and integrity of the upper mold 1, and extend the service life of the mold.

[0034] In the embodiments of this utility model, please refer to Figure 1 , Figure 4 and Figure 5 One of the handles 21 on the lower mold 2 is fixedly equipped with a connector 213 at its end. The connector 213 can be connected to an external air pump pipe, which can introduce the airflow generated by the air pump into the mold, accelerate the air flow speed. Compared with natural air cooling, forced air cooling can remove the heat of the mold and casting parts more quickly, thereby significantly accelerating the cooling process, shortening the cooling time, and improving production efficiency. This adds the function option of air cooling to the mold based on natural air cooling.

[0035] In the embodiments of this utility model, please refer to Figure 3 An annular protrusion 13, which is inserted into the upper section of the annular venting cavity 211, is fixedly installed on the lower side wall of the upper mold 1.

[0036] It should be noted that when the upper mold 1 and the lower mold 2 are connected, the annular protrusion 13 is inserted into the annular venting cavity 211 to play a positioning role. The cooperation between the annular protrusion 13 and the annular venting cavity 211 increases the contact area and connection strength between the upper mold 1 and the lower mold 2, making the overall structure of the mold more stable.

[0037] The heat dissipation grooves a24 and b25 on the lower mold 2 are connected to the annular ventilated cavity 211, allowing air to flow into and out of the annular ventilated cavity 211 through the heat dissipation grooves a24 and b25, thereby improving the air cooling effect.

[0038] The overall height of the pad 22 is greater than the overall height of the heat dissipation fins 23 located on the lower mold 2; this ensures that when the lower mold 2 is placed on a supporting surface such as the ground, the heat dissipation fins 23 will not directly contact the ground, thus avoiding damage to the heat dissipation fins 23 due to friction or collision with the ground during placement, transportation or use, extending the service life of the heat dissipation fins 23 and ensuring the heat dissipation performance of the mold.

[0039] The working principle of the air-cooled molten steel casting mold provided by this utility model is as follows:

[0040] The casting cavity in this utility model is a commonly used technical means in this field, so it will not be described in detail here. During use, the upper mold 1 and lower mold 2 are joined together, the annular protrusion 13 is inserted into the annular venting cavity 211, and the positioning rod 31 is inserted into the positioning groove 311 for positioning. The shaped plate 5 is placed on the upper mold 1, and the two threaded posts 42 on the connecting plate 41 are inserted into the connecting holes 422 at the bottom of the lower mold 2. The threaded posts 42 then pass through the connecting holes 422 of the upper mold 1 and the through holes 51 on the shaped plate 5. The locking nut 43 then locks it in place. Molten steel is injected into the casting cavity through the conical casting cylinder 11, and venting is achieved through the vent hole 12. After casting, the heat dissipation grooves a24 and b25, as well as the heat dissipation fins 23, on the upper mold 1 and lower mold 2 increase the surface area of ​​the upper mold 1 and lower mold 2 in contact with air, thereby improving their heat dissipation effect. Simultaneously, the pad 22... Elevating the lower mold 2 so that its bottom is off the ground allows air to enter the annular venting cavity 211 through the vent hole 212 on the handle 21, and then exit through the vent hole 212 on the other end of the handle 21. Both the upper mold 1 and the lower mold 2 in this invention are equipped with heat dissipation fins, and heat dissipation grooves a24 and b25 are formed on the four side walls. Elevating the lower mold 2 increases the contact area between the mold surface and the air, accelerating heat dissipation and effectively improving the heat dissipation effect. Air can enter the annular venting cavity 211 through the vent hole 212 on the handle 21 and then exit, allowing the air to contact the mold surface more evenly, ensuring consistent cooling rates across all parts of the casting and reducing stress concentration and deformation problems caused by uneven cooling. The use of natural air cooling eliminates the need for a complex cooling system, reducing equipment costs and operational difficulty. The relatively gentle air cooling process helps obtain castings with better surface quality and reduces surface defects.

[0041] When it is necessary to accelerate the cooling of the casting, the mold can also be cooled by a fan. Due to the presence of heat dissipation grooves a24, b25 and fins 23, the cooling effect of the casting is better. When it is necessary to accelerate cooling, the mold can be cooled by a fan. Combined with the heat dissipation structure of the mold itself, the cooling effect is better, so that the mold can be cooled by air or by a fan, which improves the applicability.

[0042] Connector 213 can be connected to an external air pump pipe, which can introduce the airflow generated by the air pump into the mold, accelerate the air flow speed. Compared with natural air cooling, forced air cooling can remove the heat of the mold and casting parts more quickly, thereby significantly accelerating the cooling process, shortening the cooling time, and improving production efficiency. This adds the function option of air cooling to the mold on the basis of natural air cooling.

[0043] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An air-cooled molten steel casting mold, comprising an upper mold (1) and a lower mold (2), wherein a casting cavity is formed on one side wall of the upper mold (1) and the lower mold (2) respectively, and a conical casting cylinder (11) communicating with the casting cavity and an exhaust hole (12) are fixedly installed on the upper mold (1), characterized in that: A set of handles (21) is fixedly installed on the side walls of the upper mold (1) and the lower mold (2) that are far apart from each other. Heat dissipation fins (23) are fixedly installed on the upper side wall of the upper mold (1) and the lower side wall of the lower mold (2). Heat dissipation grooves a (24) and b (25) are also opened on the four outer side walls of the upper mold (1) and the lower mold (2). The lower mold (2) has an annular ventilated cavity (211) with the opening facing upward, and the handle (21) on the lower mold (2) has a ventilated hole (212) communicating with the annular ventilated cavity (211). The bottom of the lower mold (2) is also fixedly installed with evenly distributed pads (22). The lower mold (2) is equipped with a positioning mechanism (3). The lower mold (2) is also equipped with a connecting mechanism (4) for connecting and fixing the upper mold (1) and the lower mold (2).

2. The air-cooled molten steel casting mold according to claim 1, characterized in that, The positioning mechanism (3) includes positioning rods (31). Multiple positioning rods (31) are fixedly installed on the upper side wall of the lower mold (2), and the lower side wall of the upper mold (1) is provided with positioning grooves (311) that cooperate with the positioning rods (31).

3. The air-cooled molten steel casting mold according to claim 1, characterized in that, The connecting mechanism (4) includes a threaded post (42). The upper mold (1) and the lower mold (2) are provided with two sets of connecting holes (422), and a threaded post (42) is inserted into each of the connecting holes (422). The bottoms of the two threaded posts (42) in each set are fixedly connected by a connecting plate (41). A locking nut (43) is threadedly connected to the upper end of the threaded post (42).

4. The air-cooled molten steel casting mold according to claim 3, characterized in that, A special-shaped plate (5) is installed on the upper side wall of the upper mold (1), and a through hole (51) is opened on the special-shaped plate (5) to cooperate with the threaded column (42). The threaded column (42) passes through the through hole (51). The special-shaped plate (5) is located between the upper mold (1) and the locking nut (43) and fits against the upper side wall of the upper mold (1).

5. The air-cooled molten steel casting mold according to claim 1, characterized in that, A connector (213) is fixedly installed at the end of one of the handles (21) located on the lower mold (2).

6. The air-cooled molten steel casting mold according to claim 1, characterized in that, An annular protrusion (13) inserted into the upper section of the annular venting cavity (211) is fixedly installed on the lower side wall of the upper mold (1).

7. The air-cooled molten steel casting mold according to claim 1, characterized in that, The heat dissipation grooves a (24) and b (25) on the lower mold (2) are both connected to the annular ventilated cavity (211).

8. The air-cooled molten steel casting mold according to claim 1, characterized in that, The overall height of the pad (22) is greater than the overall height of the heat dissipation fins (23) located on the lower mold (2).

Images