Adjustable casting mold

Abstract

The utility model relates to the technical field of casting molds, and discloses an adjustable casting mold which comprises a bottom plate and a side vertical plate assembly vertically arranged at the top of the bottom plate, and the bottom plate and the side vertical plate assembly form a casting mold cavity. Two parallel limiting grooves are formed in the left side and the right side of the top face of the bottom plate. The side vertical plate assembly comprises a front vertical plate, a left vertical plate, a rear vertical plate and a right vertical plate. According to the utility model, the casting mould replacement procedure can be reduced for the detachable inclined surface according to the shape of a cast ingot, and the effect of improving the casting processing efficiency is achieved. In addition, the electromagnetic side sealing device can conduct side sealing on the molten metal on the inner side of the left vertical plate.

Description

Technical Field

[0001] The utility model relates to the technical field of casting molds, in particular to an adjustable casting mold. Background Art

[0002] In recent years, China's metal manufacturing industry has flourished, ushering in a rapidly growing demand for various high-quality, high-performance metals. In order to meet the market demand for high-performance metal materials, major universities and research institutes are also actively accelerating their research and are committed to developing new metal materials. However, since the research and development of new materials requires a lot of experiments and tests, this has increased labor costs and material costs to a certain extent, becoming a major challenge in the research process. Especially in the metal casting process, traditional fixed molds are difficult to reuse, resulting in a large number of expensive custom molds being abandoned after the test, which seriously wastes resources.

[0003] In order to solve these problems, a new type of adjustable casting mold was proposed, see the invention patent "Adjustable Casting Mold" (patent number 03822299.X). As described in the patent, it has the characteristics of having an end wall that can move longitudinally and using the clamping mechanism of the hanger for side sealing. This method can adjust the thickness of the ingot without changing the mold. However, the invention limits the lateral length of the ingot and can only adjust the mold within a small range. Especially for the situation of different types of molten metal during the experiment, this method cannot replace the material of the mold, and it is difficult to avoid the influence of the mold material on the specific molten metal, so there is still a need to replace the mold.

[0004] Chinese patent CN201120551671.9 proposes a casting mold composed of two L-shaped modules placed vertically on a base, which can adjust the mold size when casting materials of different sizes, thereby saving manpower and material resources. At the same time, it can cast different materials and has a wide range of applications. However, this solution still has defects in terms of sealing. The contact surface between the mold components is not tight enough, and it is difficult to effectively prevent the molten metal from leaking from the joints. In addition, especially during the casting process, the temperature and pressure changes of the molten metal can easily cause the gap between the mold components to expand or deform, making the sealing performance more fragile. Utility Model Content

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an adjustable size mold to solve the technical problems of the existing adjustable molds, such as single size adjustment, inability to adjust to a variety of molten metal materials, and molten metal sealing during the casting process.

[0006] To achieve the above object, the utility model adopts the following technical solution: An adjustable casting mold, wherein: it includes a bottom plate and a side plate assembly vertically arranged on the top of the bottom plate, and the bottom plate and the side plate assembly form a casting cavity;

[0007] On the left and right sides of the top surface of the bottom plate, there are two parallel limit grooves; the side plate assembly includes a front plate, a left plate, a rear plate and a right plate. The rear plate is fixed on the rear side of the top surface of the bottom plate, and the front plate is arranged on the front side of the top surface of the bottom plate; at the positions corresponding to the two limit grooves on the bottom surface of the front plate, there are connecting bolts respectively. The connecting bolts on the bottom surface of the front plate respectively pass through their corresponding limit grooves and extend downward, and then are fixed by nuts; the left plate is installed between the front plate and the rear plate on the left side through the fixing assembly on its top surface; the bottom surface of the right plate is provided with a connecting bolt. The connecting bolt on the bottom surface of the right plate passes through the right limit groove and extends downward, and then is fixed by a nut. The right plate is fixedly installed between the front plate and the rear plate on the right side through the connecting bolt and the nut.

[0008] Further, detachable inclined baffles are installed on the rear side wall of the front plate and the front side wall of the rear plate. At the same time, the front and rear side walls on the left plate and the right plate are adjusted according to the inclination angle of the detachable inclined baffle to ensure the sealing performance of the casting cavity. The detachable inclined baffle, the left plate and the right plate can all be replaced with different materials according to the different metals to be cast.

[0009] Further, the fixing assembly includes a "冖"-shaped fixing plate, a pressing bolt arranged on the top of the fixing plate, and two side pressing bolts respectively arranged on both sides of the fixing plate;

[0010] The fixing plate is arranged above the left plate, and its two ends are respectively arranged on the front side of the front plate and the rear side of the rear plate; the pressing bolt passes through the bolt through hole in the middle of the top surface of the fixing plate and then presses downward against the top surface of the left plate; the two side pressing bolts respectively pass through the bolt through holes on the side walls of the fixing plate from both sides of the fixing plate and then press against the front side wall of the front plate and the rear side wall of the rear plate.

[0011] Further, an electromagnetic side sealing device is installed on the left side of the left plate.

[0012] The utility model has the following beneficial effects:

[0013] In the utility model, the front vertical plate can move forward and backward along the two limit grooves, and the distance adjustment in the width direction of the mold cavity can be achieved through the movement of the front vertical plate; the left vertical plate is installed between the front vertical plate and the rear vertical plate through the fixing assembly on its top surface, and the left vertical plate can be adjusted by the fixing assembly to move the left vertical plate left and right between the front vertical plate and the rear vertical plate, so as to achieve the distance adjustment in the length direction of the mold cavity; in actual production, the detachable inclined baffle can be disassembled and replaced according to the shape of the ingot. The effect of controlling the size and shape of the casting is achieved, and when casting different castings, the process of changing the mold is reduced, so as to achieve the effect of improving the processing efficiency of the casting. In addition, the electromagnetic side sealing device can also perform side sealing on the molten metal on the inner side of the left vertical plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;

[0015] Figure 2 The structure of the utility model is shown in FIG. Figure 2 .

[0016] Legend:

[0017] 1. Bottom plate; 2. Limiting groove; 3. Front vertical plate; 4. Right vertical plate; 5. Rear vertical plate; 6. Removable inclined baffle plate; 7. Left vertical plate; 8. Fixed plate; 9. Side clamping bolt; 10. Clamping bolt; 11. Electromagnetic side sealing device. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] As shown in the accompanying drawings, the utility model provides an adjustable casting mold, which includes: a bottom plate 1 and a side plate assembly vertically arranged on the top of the bottom plate, and the bottom plate 1 and the side plate assembly form a casting cavity;

[0020] When in use, it is first necessary to determine the ingot specifications and adjust the mold cavity size according to the experimental requirements, connect the front vertical plate 3 and the rear vertical plate 5, and fix the rear vertical plate 5 on the rear side of the top surface of the bottom plate 1; the front vertical plate 3 is arranged on the front side of the top surface of the bottom plate 1, and connecting bolts are provided at the positions corresponding to the two limit grooves 2 on the bottom surface of the front vertical plate 3, and the connecting bolts on the bottom surface of the front vertical plate 3 are respectively passed through the corresponding limit grooves 2; at this time, the front vertical plate 3 can move back and forth along the two limit grooves 2, and the distance adjustment in the width direction of the casting cavity can be realized by moving the front vertical plate 3.

[0021] Then, install the detachable inclined baffle 6 on the rear side wall of the front vertical plate 3 and the front side wall of the rear vertical plate 5. During the installation process, it is necessary to consider in advance the characteristics of the casting metal and select a suitable material to ensure that the baffle can withstand the pressure and temperature changes during the casting process. For example, there are significant differences in the thermal expansion and contraction coefficients between aluminum and cast iron. If cast iron is used as the baffle material when casting aluminum metal, it may cause changes in the mating dimensions between the mold and the aluminum casting, thus easily leading to deformation and cracks in the casting. Therefore, it is often necessary to replace it with a baffle made of H13 die steel material suitable for aluminum casting. In addition, different casting materials exhibit different properties during solidification and shrinkage, so it is necessary to select a suitable inclination angle according to specific circumstances. Generally speaking, hard materials require a larger inclination angle to reduce the demolding resistance, while soft materials can use a smaller inclination angle. If the material and inclination angle of the detachable inclined baffle 6 are changed, the materials of the left vertical plate 7 and the right vertical plate 4 and the inclination angles of the front and rear side walls need to be replaced together to ensure the sealing and stability of the casting cavity.

[0022] Secondly, select the left vertical plate 7 and the right vertical plate 4 with corresponding dimensions according to the required ingot width. The bottom surface of the right vertical plate 4 is provided with connecting bolts. After the connecting bolts on the bottom surface of the right vertical plate 4 pass through the right-side limiting groove 2 and extend downward, they are fixed by nuts. The right vertical plate 4 is fixedly installed between the front vertical plate 3 and the rear vertical plate 5 on the right side through the connecting bolts and nuts. The left vertical plate 7 is installed between the front vertical plate 3 and the rear vertical plate 5 on the left side through the fixing components on its top surface, and the left vertical plate 7 can move left and right between the front vertical plate 3 and the rear vertical plate 7 to realize the adjustment of the distance in the length direction of the casting cavity.

[0023] Finally, after determining the positions of the left vertical plate 7 and the right vertical plate 4, clamp the front vertical plate 3 and the rear vertical plate 5, and fix their positions through the fixing components. The fixing components include a "冖"-shaped fixing plate 8, a pressing bolt 10 provided at the top of the fixing plate 8, and two side pressing bolts 9 respectively provided on both sides of the fixing plate 8.

[0024] Among them, the fixing plate 8 is provided above the left vertical plate 7, and its two ends are respectively provided on the front side of the front vertical plate 3 and the rear side of the rear vertical plate 5; the pressing bolt 10 passes through the bolt through-hole in the middle of the top surface of the fixing plate 8 and then presses downward against the top surface of the left vertical plate 7 to apply a downward pressure to the left vertical plate 7 and fix the left vertical plate 7 on the base 1; the two side pressing bolts 9 respectively pass through the bolt through-holes on the side walls of the fixing plate 8 from both sides of the fixing plate 8 and then press against the front side wall of the front vertical plate 3 and the rear side wall of the rear vertical plate 5, and clamp the left vertical plate 7 with the front vertical plate 3 and the rear vertical plate 5 respectively through the side pressing bolts 9. After all positions are fixed, the connecting bolts passing through the limiting groove 2 on the bottom surface of the front vertical plate 3 can be fixed by nuts to further improve the stability and safety of the overall structure.

[0025] After the mold size is adjusted, the electromagnetic side sealing device 11 is installed on the left side of the left vertical plate 7. The working principle of the electromagnetic side sealing is to apply an alternating electromagnetic field to the end face of the molten pool, and this alternating magnetic field will generate an induced current in the adjacent molten metal. The magnetic field and the induced current interact to generate electromagnetic force, forming an electromagnetic side pressure on the end face of the molten pool, and this electromagnetic pressure is used to constrain and block the molten pool.

[0026] Adjust the current of the electromagnetic side sealing device 11 so that the electromagnetic force meets the magnetic field force requirements of the side sealing molten metal. Start the electromagnetic side sealing device 11 and slowly pour the molten metal from the top of the mold to avoid bubbles and splashing. Keep a certain margin between the top of the liquid surface and the top of the left vertical plate 7 and the right vertical plate 4. Observe the end surface of the molten pool to ensure that the electromagnetic side pressure effectively constrains the molten pool to avoid leakage. After the molten metal is completely solidified, close the electromagnetic side sealing device 11.

[0027] After the casting is completely cooled, first remove the electromagnetic side packaging device 11. Then loosen the clamping bolt 10 on the top of the fixing plate 8 and the two side clamping bolts 9 on both sides in turn, and remove the fixing plate 8. Next, remove the nuts connecting the bottom of the front vertical plate 3 and the right vertical plate 4, and remove the front vertical plate 3, the left vertical plate 7 and the right vertical plate 4. Finally, take out the ingot.

[0028] In addition, this product can also be used as another example, namely, a progressive solidification molding method for large ingots or billets (reference patent number CN109663892A). This method adopts a partitioned discrete casting method, and the ingot obtained in the previous step is used as the ingot core for the next step of solidification, and is coated outward layer by layer to achieve the purpose of homogenization and refinement of the structure. However, in the traditional die casting process, it is necessary to constantly replace molds of different sizes, and this operation may increase production costs and process complexity. The adjustable casting mold technology of this product provides the possibility of improving this method. It is no longer necessary to replace the entire mold, but the ingot can be gradually formed by adjustment. This method makes the preparation process of large ingots or billets more efficient, and improves production efficiency and product quality. By combining the technical characteristics and advantages of this product, the preparation process of large ingots or billets can be better improved, thereby meeting actual production needs and improving production efficiency and quality levels.

[0029] It should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An adjustable casting mold, characterized in that: It includes a bottom plate (1) and a side plate assembly vertically arranged on the top of the bottom plate. The bottom plate (1) and the side plate assembly form a casting cavity. On the left and right sides of the top surface of the bottom plate (1), there are two parallel limiting grooves (2). The side plate assembly includes a front plate (3), a left plate (7), a rear plate (5), and a right plate (4). The rear plate (5) is fixed on the rear side of the top surface of the bottom plate (1), and the front plate (3) is arranged on the front side of the top surface of the bottom plate (1). At the positions corresponding to the two limiting grooves (2) on the bottom surface of the front plate (3), there are connecting bolts respectively. The connecting bolts on the bottom surface of the front plate (3) pass through their corresponding limiting grooves (2) and extend downward, and then are fixed by nuts. The left plate (7) is installed between the front plate (3) and the rear plate (5) on the left side through the fixing assembly on its top surface. The bottom surface of the right plate (4) is provided with a connecting bolt. The connecting bolt on the bottom surface of the right plate (4) passes through the right limiting groove (2) and extends downward, and then is fixed by a nut. The right plate (4) is fixedly installed between the front plate (3) and the rear plate (5) on the right side through the connecting bolt and the nut. The fixing assembly includes a "冖"-shaped fixing plate (8), a pressing bolt (10) arranged on the top of the fixing plate (8), and two side pressing bolts (9) respectively arranged on both sides of the fixing plate (8). The fixing plate (8) is arranged above the left plate (7), and its two ends are respectively arranged on the front side of the front plate (3) and the rear side of the rear plate (5). The pressing bolt (10) passes through the bolt through-hole in the middle of the top surface of the fixing plate (8) and then presses against the top surface of the left plate (7) downward. The two side pressing bolts (9) respectively pass through the bolt through-holes on the side walls of the fixing plate (8) from both sides of the fixing plate (8) and then press against the front side wall of the front plate (3) and the rear side wall of the rear plate (5).

2. The adjustable casting mold according to claim 1, characterized in that: Detachable inclined baffle plates (6) are installed on the rear side wall of the front plate (3) and the front side wall of the rear plate (5). At the same time, the front and rear side walls on the left plate (7) and the right plate (4) are adjusted according to the inclination angle of the detachable inclined baffle plate (6). The detachable inclined baffle plate (6), the left plate (7), and the right plate (4) can all be replaced with different materials according to the different metals to be cast.

3. The adjustable casting mold according to claim 1, characterized in that: An electromagnetic side sealing device is installed on the left side of the left plate (7).

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