A device for casting
By designing a casting device that includes a conveying section, a fixing section, a pressure roller assembly, and a locking device, the problems of inconsistent alloy particle size, uneven surface, and internal cavities in traditional casting devices are solved. This achieves uniform compaction and surface smoothness of the alloy liquid, thereby improving production efficiency and the quality of alloy particles.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING SHOUGANG FERROALLOY
- Filing Date
- 2025-05-27
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional casting equipment suffers from casting deviations and mold damage during the casting process, resulting in alloy particles of varying sizes and uneven surfaces. The pressure rollers cannot adjust the pressing pressure, and there are cavities inside the alloy and uneven surface density, which affects production efficiency and quality.
A casting device comprising a conveying section, a fixing section, a pressure roller assembly, and a locking device is designed. Through multiple connecting parts and the pressure roller body, the pressure of the pressure roller body is adjusted by the locking device to achieve uniform pressing and surface smoothing of the alloy liquid, reduce air bubbles, and ensure the quality and efficiency of alloy particles.
This method achieves uniform compaction and surface smoothing of the alloy liquid, reduces internal bubbles, improves the apparent density of alloy particles and production efficiency, and ensures the quality of alloy particles.
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Figure CN224309589U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of alloy casting technology, and in particular to a device for casting. Background Technology
[0002] Alloy particles are formed by processing and cooling metallic elements (such as copper, silicon, manganese, magnesium, zinc, etc.). Alloy particles have good electrical conductivity, thermal conductivity, corrosion resistance and plasticity, so they are widely used in aerospace, automotive, construction and electronics industries. During the preparation process, the quality of alloy particles has an important impact on subsequent applications.
[0003] In related technologies, alloy metal materials undergo pretreatment, smelting, and casting stages. The pretreatment stage removes oil, paint, and moisture to ensure the metal material meets smelting requirements. The smelting stage melts the metal material into a molten liquid, and refines it to remove gas and oxide inclusions. Finally, the molten alloy liquid is poured into a mold and cooled to solidify, forming various alloy particles.
[0004] However, traditional casting equipment suffers from operational errors and mold damage during the casting process, making it difficult to evenly distribute the molten alloy within the mold. This results in alloy particles of varying sizes and uneven surfaces. Furthermore, the inability to adjust the pressing force of the pressure rollers leads to internal cavities containing gaseous impurities and uneven surface density within the alloy particles, thus impacting production efficiency and particle quality. Utility Model Content
[0005] This invention addresses the problems of traditional casting devices, such as casting deviations, mold damage, and inability to evenly distribute molten alloy within the mold, resulting in inconsistent alloy particle size and uneven surfaces. Furthermore, the inability to adjust the pressing force of the pressure rollers leads to internal cavities and uneven surface density in the alloy, negatively impacting production efficiency and alloy particle quality. The invention provides a casting device with the following technical solution:
[0006] An apparatus for casting, comprising:
[0007] A conveying unit, on which multiple molds are mounted, and the multiple molds contain molten alloy.
[0008] A fixing part is disposed above the conveying part;
[0009] A pressure roller assembly is located between the conveying part and the fixing part. The pressure roller assembly includes multiple connectors and a pressure roller body. The pressure roller body is connected to the fixing part through the multiple connectors.
[0010] A locking device is installed on the connector and connected to the main body of the pressure roller;
[0011] The locking device has a preset state, and the locking device is driven to apply pressure to or release pressure on the pressure roller body.
[0012] In some embodiments, the connector has an I-shaped structure, the side of the connecting plate is provided with a groove, and the pressure roller body and the locking device are both located in the groove.
[0013] In some embodiments, the locking device includes a connecting rod and an elastic element. The connecting rod is fixedly mounted on the connecting element, the pressure roller body is connected to the connecting rod, the elastic element is sleeved on the connecting rod and fixedly connected to the pressure roller assembly, and a fastener is provided at one end of the elastic element away from the pressure roller body. The fastener is threadedly connected to the connecting rod.
[0014] In some embodiments, a slider is provided on the pressure roller body, and the pressure roller body is slidably connected to the connecting rod through the slider;
[0015] The fastener is moved along the extension direction of the connecting rod to deform the elastic element and apply or release force to the pressure roller body.
[0016] In some embodiments, the elastic element is a compression spring.
[0017] In some embodiments, along the axial direction of the pressure roller body, a plurality of protrusions are spaced apart on the surface of the pressure roller body, and the surface of the protrusions is a smooth surface.
[0018] In some embodiments, the protrusion has a ring structure, the protrusion is integral with the pressure roller body, or the protrusion is detachably connected to the pressure roller body.
[0019] In some embodiments, the pressure roller body has a hollow cylindrical structure, and a joint assembly is provided at the end of the pressure roller body. The interior of the pressure roller body is connected to the outside through the joint assembly.
[0020] In some embodiments, the joint assembly includes a bearing and a joint, the bearing being located between the pressure roller body and the joint.
[0021] In some embodiments, the connector is provided with a counterweight, which has an E-shaped structure.
[0022] The technological advancements achieved by this invention compared to existing technologies are as follows:
[0023] This utility model includes a pressure roller assembly comprising multiple connectors and a pressure roller body. A locking device is installed on the connectors and connected to the pressure roller body. Driving the locking device applies or releases pressure to the pressure roller body, allowing the pressure roller body to uniformly compress and compact the alloy liquid by adjusting the pressure through the locking device. This allows it to adapt to alloy liquids requiring different pressures, thereby reducing air bubbles inside the alloy liquid, achieving a smooth surface of the alloy liquid, and increasing the apparent density of the alloy particles formed by the cooling and hardening of the alloy liquid. This, in turn, ensures the quality of the alloy particles and the efficiency of the work. Attached Figure Description
[0024] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0025] In the attached diagram:
[0026] Figure 1 This is a schematic diagram of the device for casting according to this utility model;
[0027] Figure 2 This is a schematic diagram of the device for casting according to this utility model;
[0028] Figure 3 This is a schematic diagram of the device for casting according to this utility model;
[0029] Figure 4 for Figure 3 Cross-sectional view along the AA direction;
[0030] Figure 5 This is a partial schematic diagram of the device for casting according to this utility model.
[0031] In the diagram: 1. Conveying section; 2. Mold; 21. Tank; 3. Alloy liquid; 4. Fixing section; 41. Crossbar; 410. Limiting sleeve; 42. Vertical bar; 5. Pressure roller assembly; 51. Connecting piece; 510. Mounting hole; 511. Groove; 52. Pressure roller body; 6. Locking device; 61. Connecting rod; 62. Elastic element; 63. Fastener; 7. Sliding block; 8. Protrusion; 9. Joint assembly; 91. Bearing; 92. Joint; 10. Counterweight. Detailed Implementation
[0032] The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this utility model will be described below with reference to the accompanying drawings.
[0033] like Figures 1 to 5As shown, this utility model discloses a device for casting, including a conveying section 1, a fixing section 4, a pressure roller assembly 5, and a locking device 6. The conveying section 1 is used to carry and transport high-temperature molten alloy 3. The conveying section 1 can be a chain conveyor or a belt conveyor, etc., as long as it can transport the molten alloy 3. This application does not impose many restrictions on this. Multiple molds 2 are installed on the conveying section 1, and the multiple molds 2 are arranged along the conveying direction of the conveying section 1 (e.g., ...). Figure 1 As shown in the x-direction, multiple molds 2 are arranged and connected to each other to contain the cooled and shaped alloy liquid 3. Each mold 2 has multiple tanks 21, in which the alloy liquid 3 is located. The shape of the tanks 21 can be square or semi-circular. In one example, the tanks 21 on each mold 2 are square. A predetermined amount of alloy liquid 3 can be injected into each tank 21 to facilitate the subsequent preparation of square-structured alloy particles. It should be noted that the number of molds 2 and tanks 21 can be adaptively set according to needs. For example, there can be twenty molds 2. Two adjacent molds 2 can be detachably connected, which facilitates disassembly and installation during operator inspection and maintenance, thereby ensuring normal operation. Each mold 2 can have two, four, etc., thereby improving production efficiency.
[0034] The fixing part 4 is located above the conveying part 1. The fixing part 4 is used to install and support other components. The fixing part 4 is a rigid support structure. In one example, the fixing part 4 includes a horizontal bar 41 and a vertical bar 42. Both the horizontal bar 41 and the vertical bar 42 are stainless steel column structures and are welded together. The stainless steel column structure of the horizontal bar 41 and the vertical bar 42 has good corrosion resistance and load-bearing capacity to enhance service life. In one example, such as... Figure 2 As shown, a limiting sleeve 410 is provided on the surface of the crossbar 41. When the operator rotates the connecting piece 51 relative to the crossbar 41, the limiting sleeve 410 can effectively limit the rotation position of the pressure roller body 52, and at the same time, it can evenly distribute the pressure on the crossbar 41 to realize the service life of the crossbar 41.
[0035] Continue to refer to Figures 1 to 5The pressure roller assembly 5 is located between the conveying section 1 and the fixing section 4. The pressure roller assembly 5 includes multiple connectors 51 and a pressure roller body 52. The pressure roller body 52 is connected to the fixing section 4 through multiple connectors 51. The number of connectors 51 can be two, four, five, etc. In this application, two connectors 51 are provided. The connectors 51 can be fixedly connected to the fixing section 4 or rotatably connected. In one example, two connectors 51 are provided. One side of each connector 51 is mounted on the pressure roller body 52. A mounting hole 510 is provided on the side of the connector 51 away from the pressure roller body 52. The mounting hole 510 has a screw thread inside. The connecting piece 51 is fitted through the mounting hole 510 and threadedly connected to the crossbar 41 in the fixing part 4, so that there is a preset angle between the central axis of the crossbar 41 and the central axis of the connecting piece 51. The preset angle can be adjusted adaptively as needed. For example, rotating the connecting piece 51 circumferentially along the crossbar 41 can move the pressure roller body 52 closer to or away from the mold 2. The angle can be adjusted adaptively according to the height of the conveying part 1, thereby adjusting the position of the pressure roller body 52 to facilitate subsequent operation of the alloy liquid 3. The locking device 6 is installed on the connecting piece 51 and connected to the pressure roller body 52. The locking device 6 is used to adjust the pressure of the pressure roller body 52. During casting, when one side of the two grooves 21 on the parallel casting mold 2 is different from the other side, the operator can adjust the locking device 6 on one side of the connecting piece 51 to achieve uniform pressing and compaction of the alloy liquid 3 on both sides.
[0036] During use, the locking device 6 has a preset state. When the locking device 6 presses down toward the pressure roller body 52, it applies pressure to the pressure roller body 52. The pressure roller body 52 delivers the pressure to the surface of the alloy liquid 3 in the tank 21. During the casting process, the pressure roller body 52 can evenly press the alloy liquid 3 into each tank 21 to ensure that the alloy particles formed after cooling are of uniform size. At the same time, it ensures the flatness of the surface of the alloy liquid 3, reduces the internal cavity of the alloy liquid 3, and increases the apparent density of the alloy particles formed by the cooling and hardening of the alloy liquid 3. When the pressure application is completed or a smaller force is required, the locking device 6 moves upward toward the side away from the pressure roller body 52, thereby releasing the pressure of the pressure roller body 52. This completes the casting process or prepares alloy particles that require less pressure, thus achieving the flattening and compaction of the alloy liquid 3.
[0037] In this application, the pressure roller assembly includes multiple connectors and a pressure roller body. A locking device is installed on the connectors and connected to the pressure roller body. Driving the locking device applies pressure to or releases pressure on the pressure roller body, allowing the pressure roller body to uniformly press and compact the alloy liquid by adjusting the pressure through the locking device. This allows it to adapt to alloy liquids requiring different pressures, thereby reducing air bubbles inside the alloy liquid, achieving a smooth surface of the alloy liquid, and increasing the apparent density of the alloy particles formed by the cooling and hardening of the alloy liquid. This, in turn, ensures the quality of the alloy particles and the efficiency of the work.
[0038] In some embodiments, the shape of the connector 51 can be an I-shaped structure, a columnar structure, a U-shaped structure, etc. For example, in one instance... Figure 1 and Figure 2 As shown, the connector 51 has an I-shaped structure. The I-shaped connector 51 has strong load-bearing capacity and stability. The side of the connector 51 is provided with a groove 511. The pressure roller body 52 and the locking device 6 are both located in the groove 511, so that the connector 51 can connect the pressure roller body 52 and the locking device 6. At the same time, it can also prevent the locking device 6 from being hit by external collisions and touched by operators, thus having safety and reliability.
[0039] In some embodiments, continue to refer to Figure 1 and Figure 2 The locking device 6 includes a connecting rod 61 and an elastic element 62. The connecting rod 61 can be a lead screw or a bolt. Both ends of the connecting rod 61 are fixedly installed on the connecting element 51, and the fixing method can be welding. The pressure roller body 52 is connected to the connecting rod 61. The elastic element 62 is sleeved on the connecting rod 61 and fixedly connected to the pressure roller body 52. The elastic element 62 has the functions of buffering and shock absorption, storage capacity, and guidance. A fastener 63 is provided at the end of the elastic element 62 away from the pressure roller body 52. The fastener 63 is threaded to the connecting rod 61. Next, in one example, the connecting rod 61 is a bolt, and the elastic element 62 and the fastener 63 are both set on the bolt. One end of the elastic element 62 is welded to the fastener 63, and the other end is welded to the pressure roller body 52. By tightening or loosening the fastener 63, different pre-tightening pressures are applied to the elastic element 62, thereby achieving the effect of applying pressure. This allows the pressure roller body 52 to provide appropriate pressure according to different molds and alloy liquid states during operation, achieving direct contact and stable locking pressure, and avoiding damage to the mold or finished product alloy particles due to rigid impact.
[0040] In some embodiments, to achieve smooth guidance and force transmission between the pressure roller body 52 and the connecting rod 61, the pressure roller body 52 and the connecting rod 61 are slidably connected. The slidable connection method can be adaptively set as needed. In one example, such as... Figures 3 to 5A slider 7 is provided on the pressure roller body 52, and the slider 7 is fixedly connected to the pressure roller body 52. The surface of the connecting rod 61 near the pressure roller body 52 is a smooth surface. The pressure roller body 52 is slidably connected to the connecting rod 61 through the slider 7. Along the extension direction of the connecting rod 61, when the fastener 63 is rotated and moved to one side of the pressure roller body 52, the elastic element 62 is compressed, causing the elastic element 62 to deform under force. At the same time, force is applied to the pressure roller body 52. The pressure roller body 52 applies pressure to the surface of the alloy liquid 3 in the mold 2 and presses it firmly to achieve a smooth surface of the alloy liquid 3, thereby ensuring the quality of the cast alloy particles. When the fastener 63 is rotated and moved away from the pressure roller body 52, the force on the elastic element 62 gradually disappears and returns to its original state. At the same time, the force applied to the pressure roller body 52 decreases, thereby releasing the pressure on the pressure roller body 52. During casting, the pressure roller body 52 can also be rotatably connected to the slider 7, so that the pressure roller body 52 moves along the circumference of the pressure roller body 52 (e.g., Figure 3 The H direction shown in the figure rotates on the surface of the alloy liquid 3, that is, the conveying part 1 rotates in the opposite direction to the pressure roller body 52, thereby ensuring the flatness and smoothness of the surface of the alloy liquid 3. At the same time, during the casting process, the mold 2 will have a reaction effect on the pressure roller body 52, causing the pressure roller body 52 to move toward the fastener 63. At this time, the elastic element 62 can have a shock absorption and buffering effect on the pressure roller body 52, which can prevent damage to the pressure roller body 52.
[0041] In some embodiments, the elastic element 62 is a compression spring, which has the functions of power storage and release, shock absorption and buffering, so as to ensure that the pressure roller body 52 is protected from damage by impact from the mold 2 or the conveying part 1, thereby improving the reliability and service life of the device.
[0042] In some embodiments, such as Figures 1 to 3 As shown, along the axial direction of the pressure roller body 52 (e.g.) Figure 2As shown in the y-direction), the surface of the pressure roller body 52 is provided with a plurality of protrusions 8 at intervals. The protrusions 8 are used to define the shape and surface flatness of the alloy liquid 3 to improve the quality of the alloy liquid 3. In the assembled state, the pressure roller body 52 is located on top of the mold 2 and fits together with each other, that is, the protrusions 8 match the tank 21 so that during the conveying process of the conveying part 1, the protrusions 8 directly contact the alloy liquid 3 and can press and compress the alloy liquid 3 by the force applied by the pressure roller body 52 to achieve the shape and quality of the cooled alloy liquid 3. In one example, the surface of the protrusion 8 is a smooth surface, and the smooth surface is in direct contact with the alloy liquid 3. Since the alloy liquid 3 is a high temperature liquid, when it comes into contact with the protrusion 8, its surface will be subjected to the pressure of the surface of the protrusion 8, so that the surface state is formed according to the surface state of the protrusion 8. Therefore, by pressing the alloy liquid 3 with the smooth surface of the protrusion 8, the surface of the alloy particles formed by subsequent cooling and hardening is flat and smooth, thereby improving the casting quality. It should be noted that the number of protrusions 8 can be two, four, or six, etc., as long as they match the total length of the groove 21 on the mold 2. For example, along the axial direction of the pressure roller body 52 (e.g. Figure 1 As shown in the y-direction), the mold 2 has three rows of grooves 21, and the pressure roller body 52 is provided with two protrusions 8. The length of each protrusion 8 matches the length of the corresponding three rows of grooves 21, thereby improving production efficiency and quality.
[0043] In some embodiments, the protrusion 8 can be a fan-shaped structure or a ring-shaped structure. In one example, such as... Figures 1 to 3 As shown, the protrusion 8 has a circular structure and is integrated with the pressure roller body 52 to form an integral structure, which can ensure the stability and flexibility of pressing the alloy liquid 3. In another example, the protrusion 8 is detachably connected to the pressure roller body 52. During operation, the operator can check and maintain the protrusion 8 at any time, and can disassemble and install it in a timely manner to avoid the surface of the protrusion 8 from being worn for a long time, which would affect the flatness of the surface of the alloy liquid 3. It also facilitates the matching of molds of different heights or types to cast different alloy particles.
[0044] In some embodiments, such as Figures 1 to 4As shown, the pressure roller body 52 has a hollow cylindrical structure. The central cavity is used to contain liquid, which can be coolant, water, or other liquids that can cool down. It can be adapted as needed. This application does not impose too many limitations on this. The end of the pressure roller body 52 is provided with a connector assembly 9. The connector assembly 9 is used to connect the pressure roller body 52 to the outside to ensure that the connection is seamless and matched. This allows the inside of the pressure roller body 52 to communicate with the outside through the connector assembly 9. The outside has a liquid device that provides liquid to the pressure roller body 52. During the casting process, when the pressure roller body 52 presses the alloy liquid 3, the liquid inside the pressure roller body 52, transported by the liquid device, can cool the alloy liquid 3. The high-temperature alloy liquid hardens through liquid cooling to form alloy particles, which facilitates subsequent use and operation.
[0045] In some embodiments, continue to refer to Figures 1 to 4 The joint assembly 9 includes a bearing 91 and a joint 92. The bearing 91 has functions such as friction reduction and lubrication, support and guidance, and sealing and dust prevention. The bearing 91 is located between the pressure roller body 52 and the joint 92. When the pressure roller body 52 rotates relative to the slider 7, the joint 92 can be a water-cooled rotary head. The water-cooled rotary joint can provide cooling for the liquid inside the pressure roller body 52. One end of the water-cooled rotary joint is connected to the pressure roller body 52, and the other end is connected to the liquid equipment, so that the liquid delivered to the pressure roller body 52 circulates and achieves the effect of cooling the alloy liquid 3, avoiding the formation of air bubbles or affecting the quality of the alloy liquid during the hardening process.
[0046] In some embodiments, such as Figure 1 As shown, a counterweight 10 is provided on the connector 51. The counterweight 10 can adjust the pressure of the entire pressure roller assembly 5. The shape of the counterweight 10 can be adapted as needed. In one example, the counterweight 10 has an E-shaped structure. The E-shaped counterweight 10 can be stably installed on the connector 51, thereby realizing pressure adjustment and ensuring the quality of the subsequent cast alloy particles.
[0047] The working principle of the device for casting in this application is as follows:
[0048] like Figures 1 to 5 As shown, firstly, the operator sets up the corresponding mold 2 according to the requirements. Multiple molds 2 are connected to each other and installed on the conveying part 1. Then, the operator adjusts the preset angle between the connecting piece 51 on the pressure roller assembly 5 and the crossbar 41 on the fixing part 4 so that the pressure roller body 52 is close to the groove 21 of the mold 2. According to the type of alloy being cast, the operator rotates the fastener 63 and moves it to one side of the pressure roller body 52, thereby compressing the elastic member 62 and causing the elastic member 62 to deform under force. At the same time, force is applied to the pressure roller body 52, and the pressure roller body 52 applies pressure to the surface of the alloy liquid 3 in the mold 2 and presses it firmly.
[0049] During the conveying process of the alloy liquid 3 in the conveying section 1, the pressure roller body 52 rotates and presses the alloy liquid evenly, so that the alloy liquid is evenly spread into each groove 21 of the mold 2 to ensure that the size of the cast alloy particles is uniform and that the surface of the alloy liquid 3 is flat, thereby ensuring the quality of the cast alloy particles. In addition, the mold 2 has a reaction effect on the pressure roller body 52, so that the pressure roller body 52 moves towards the fastener 63 through the slider 7. At this time, the elastic element 62 can provide shock absorption and buffering for the pressure roller body 52, which can prevent damage to the pressure roller body 52. At the same time, the liquid inside the pressure roller body 52 effectively reduces the temperature of the alloy liquid 3, which can cool and harden the pressed alloy liquid 3 to form the required alloy particles, thereby improving work efficiency and production quality.
[0050] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of the claims of this utility model.
Claims
1. A device for casting, characterized in that, include: A conveying unit, on which multiple molds are mounted, and the multiple molds contain molten alloy. A fixing part is disposed above the conveying part; A pressure roller assembly is located between the conveying part and the fixing part. The pressure roller assembly includes multiple connectors and a pressure roller body. The pressure roller body is connected to the fixing part through the multiple connectors. A locking device is installed on the connector and connected to the main body of the pressure roller; The locking device has a preset state, and the locking device is driven to apply pressure to or release pressure on the pressure roller body.
2. The device for casting according to claim 1, characterized in that, The connector has an I-shaped structure, and the side of the connecting plate is provided with a groove. The main body of the pressure roller and the locking device are both located in the groove.
3. The device for casting according to claim 1, characterized in that, The locking device includes a connecting rod and an elastic element. The connecting rod is fixedly installed on the connecting element. The pressure roller assembly is connected to the connecting rod. The elastic element is sleeved on the connecting rod and fixedly connected to the pressure roller body. A fastener is provided at the end of the elastic element away from the pressure roller body. The fastener is threadedly connected to the connecting rod.
4. The apparatus for casting according to claim 3, characterized in that, The pressure roller body is provided with a slider, and the pressure roller body is slidably connected to the connecting rod through the slider; The fastener is moved along the extension direction of the connecting rod to deform the elastic element and apply or release force to the pressure roller body.
5. The apparatus for casting according to claim 3, characterized in that, The elastic element is a compression spring.
6. The apparatus for casting according to claim 1, characterized in that, Along the axial direction of the pressure roller body, the surface of the pressure roller body is provided with a plurality of protrusions at intervals, and the surface of the protrusions is a smooth surface.
7. The apparatus for casting according to claim 6, characterized in that, The protrusion has a circular ring structure, and the protrusion is integral with the main body of the pressure roller, or the protrusion is detachably connected to the main body of the pressure roller.
8. The apparatus for casting according to claim 1, characterized in that, The main body of the pressure roller has a hollow cylindrical structure, and a joint assembly is provided at the end of the main body of the pressure roller. The interior of the main body of the pressure roller is connected to the outside through the joint assembly.
9. The apparatus for casting according to claim 8, characterized in that, The joint assembly includes a bearing and a joint, with the bearing located between the pressure roller body and the joint.
10. The apparatus for casting according to claim 1, characterized in that, The connector is provided with a counterweight, which has an E-shaped structure.