Molding mechanism, molding method, casting device and metal purification system

Abstract

The invention discloses a forming mechanism. The forming mechanism comprises a bottom-layer mold and an upper-layer mold. The bottom-layer mold is provided with a bottom-layer mold cavity; the upper-layer mold is arranged above the bottom-layer mold and is provided with an upper-layer mold cavity; the upper-layer mold cavity penetrates through the upper-layer mold in the vertical direction, and the bottom-layer mold cavity and the upper-layer mold cavity communicate with each other to form a forming cavity. By adopting the forming mechanism, as the bottom-layer mold and the upper-layer mold jointly form the forming cavity, the contact area between the mold and a product is reduced, the adhesive force is reduced, the product does not need to be ejected out through an ejector pin, the formation of product defects is reduced, and the product quality is improved. And meanwhile, after the bottom-layer mold is demolded, the mold is closed again to clamp and fix the product, so that the demolding of the upper-layer mold is further facilitated, the probability of product deformation is further reduced, and the product quality is improved. The invention further discloses a forming method, a casting device and a metal purification system.

Description

Technical Field

[0001] This application belongs to the technical field of metal smelting, and particularly relates to a forming mechanism, a forming method, a casting device, and a metal purification system. Background Art

[0002] The metal purification process is to purify the metal containing impurities through physical or chemical methods to obtain high-purity metal. Most high-purity metals are usually soft in texture and low in mechanical strength. Currently, they are generally melted and cast in the workshop on-site. Specifically, the metal is refined to a liquid state through high temperature, and then the liquid metal is sent into a mold to be cast into an ingot, and it can be demolded after cooling.

[0003] Existing molds for casting high-purity metals usually include a fixed mold and a movable mold. The movable mold is movable relative to the fixed mold and can form a mold cavity with the fixed mold. When demolding, the movable mold can be removed. When forming a product with a large size, since the contact area between the movable mold and the product is large, the adhesion force between the two is large. At the same time, the high-purity metal is soft in texture, and when the movable mold is detached, it is easy to pull the product, resulting in product deformation. Summary of the Invention

[0004] The technical problem to be solved by this application is that during the demolding process of the existing mold, the large adhesion force between the movable mold and the product easily pulls the product, resulting in product deformation. To solve this technical problem, a forming mechanism, a forming method, a casting device, and a metal purification system that are convenient for demolding and reduce product deformation are provided.

[0005] The technical solution proposed by this application is as follows: A forming mechanism, comprising: A bottom mold, having a bottom mold cavity; and An upper mold, disposed above the bottom mold and having an upper mold cavity; Wherein, the upper mold cavity penetrates through the upper mold in the vertical direction, and the bottom mold cavity is in communication with the upper mold cavity to form a forming cavity.

[0006] Using the above-mentioned forming mechanism, the liquid metal is introduced into the forming cavity. The liquid metal fills the bottom mold cavity and the upper mold cavity in sequence. After completion, wait for the liquid metal to cool and form. Then, first perform demolding treatment on the bottom mold. After demolding, close the mold again to clamp and fix the product. Next, perform demolding on the upper mold. After demolding, perform demolding on the bottom mold again to complete the overall demolding. Since the bottom mold and the upper mold jointly form the forming cavity, the contact area between the mold and the product is reduced, thereby reducing the adhesion force. Moreover, it is not necessary to eject the product through a thimble, reducing the formation of product defects and improving the product quality. At the same time, after the bottom mold is demolded and the mold is closed again to clamp and fix the product, it is further convenient for the demolding of the upper mold, thereby further reducing the probability of product deformation and improving the product quality.

[0007] Further, the bottom mold includes a bottom driving member and two bottom mold members. The two bottom mold members are arranged oppositely, and the bottom driving member is connected to at least one of the bottom mold members to drive the two bottom mold members to approach and separate from each other. The two bottom mold members can approach and fit together to enclose and form the bottom mold cavity.

[0008] Further, the upper mold includes an upper driving member and two upper mold members. The two upper mold members are arranged oppositely, and the upper driving member is connected to at least one of the upper mold members to drive the two upper mold members to approach and separate from each other. The two upper mold members can approach and fit together to enclose and form the upper mold cavity.

[0009] Further, cooling channels are provided in both the bottom mold and the upper mold, and the cooling channels are arranged around the molding cavity; The molding mechanism further includes a cooling supply component, and the cooling supply component is communicated with the cooling channels.

[0010] Further, the number of the upper molds is multiple, and the multiple upper molds are arranged in sequence along the vertical direction, and any two adjacent upper mold cavities are communicated with each other.

[0011] A molding method includes the steps of: S110, pouring liquid metal into the molding cavity. The molding cavity includes a bottom mold cavity and an upper mold cavity that are communicated with each other; S120, after the liquid metal is cooled and molded, demold the bottom mold, and then close the bottom mold again; S130, demold the upper mold; S140, demold the bottom mold.

[0012] Further, when demolding the bottom mold, drive the two bottom mold members to separate from each other through the bottom driving member; when closing the bottom mold, drive the two bottom mold members to approach and fit together through the bottom driving member; when demolding the upper mold, drive the two upper mold members to separate from each other through the upper driving member.

[0013] A casting device includes a melting furnace, a casting pipeline, and the molding mechanism as described above. The melting furnace is used to melt metal into liquid metal. One end of the casting pipeline is connected to the melting furnace, and the other end extends to the molding mechanism to guide the liquid metal to be poured into the molding cavity.

[0014] Further, the casting device further includes a pressurizing mechanism. The pressurizing mechanism is connected to the melting furnace and is used to input pressurized gas into the melting furnace to press the liquid metal in the melting furnace into the molding cavity through the casting pipeline.

[0015] A metal purification system includes an electrolytic cell and the casting device described above, and the electrolytic cell is arranged downstream of the casting device.

[0016] In summary, the forming mechanism, forming method, casting device, and metal purification system provided by this application have at least the following advantages: 1. The bottom mold cavity of the bottom layer mold and the upper mold cavity of the upper layer mold together form a forming cavity, reducing the contact area between the mold and the product, thereby reducing the adhesion force. Moreover, there is no need to eject the product through ejector pins, reducing the formation of product defects and improving the product quality; 2. Both the bottom layer mold and the upper layer mold are provided with cooling channels to accelerate the cooling rate of the liquid metal in the forming cavity and improve production efficiency; 3. The liquid metal in the melting furnace is pressed into the forming cavity by pressurized gas, enabling accurate control of the pouring amount of the liquid metal; 4. A heating element is arranged outside the casting pipe to prevent the liquid metal in the casting pipe from cooling and solidifying, resulting in blockage of the casting pipe. Description of the Drawings

[0017] The drawings are used to provide a further understanding of this application and constitute a part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation to this application.

[0018] Figure 1 It is a schematic structural diagram of a forming mechanism provided by an embodiment of this application; Figure 2 It is a schematic flow diagram of a forming method provided by an embodiment of this application; Figure 3 It is a schematic structural diagram of a casting device provided by an embodiment of this application; Figure 4 It is a schematic structural diagram of a metal purification system provided by an embodiment of this application.

[0019] Reference Signs Explanation: 10. Casting device; 20. Electrolytic cell; 30. Conveyor belt; 40. Manipulator; 100. Forming mechanism; 110. Bottom layer mold; 111. Bottom mold cavity; 112. Bottom driving part; 113. Bottom mold part; 120. Upper layer mold; 121. Upper mold cavity; 122. Upper driving part; 123. Upper mold part; 130. Cooling supply component; 200. Melting furnace; 300. Casting pipe; 310. Heating element; 320. Casting valve; 400. Pressurizing mechanism; 410. Gas storage tank; 420. Air supply pump; 430. Return flow component; 440. Air supply regulating valve; 450. Gas detector; 500. Pressure detector. Detailed implementation manners

[0020] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0021] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0022] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0023] In the present application, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0024] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0025] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0026] When the existing mold is applied to the casting and molding of metals, the contact area between the mold and the product is large, and the adhesion between the two is large. During the demolding process, the mold is likely to pull the product, resulting in product deformation, or forming pores, pits or protrusions on the surface of the product. In addition, for some products that are difficult to separate, the product may also be ejected by a thimble, but the product is likely to be deformed during the impact process between the thimble and the product. Therefore, there are many defects that affect the product quality in the demolding process of the existing mold.

[0027] On the one hand, this application provides a molding mechanism, which can be applied to the casting and molding of metals and can reduce product deformation during the demolding process, thereby improving product quality.

[0028] In one embodiment, as Figure 1 shown, the molding mechanism 100 includes a bottom mold 110 and an upper mold 120. The bottom mold 110 and the upper mold 120 are sequentially arranged in the vertical direction, and the upper mold 120 is located above the bottom mold 110.

[0029] The bottom mold 110 has a bottom mold cavity 111, the upper mold 120 has an upper mold cavity 121, and the upper mold cavity 121 penetrates the upper mold 120 in the vertical direction. The upper mold cavity 121 communicates with the bottom mold cavity 111 to form a molding cavity.

[0030] Using the above-mentioned molding mechanism 100, liquid metal is introduced into the molding cavity. The liquid metal fills the bottom mold cavity 111 and the upper mold cavity 121 in sequence. After completion, wait for the liquid metal to cool and solidify. Then, first perform demolding on the bottom mold 110. After demolding, close the mold again to clamp and fix the product. Next, perform demolding on the upper mold 120. After demolding, perform demolding on the bottom mold 110 again to complete the overall demolding. Since the bottom mold 110 and the upper mold 120 jointly form the molding cavity, the contact area between the mold and the product is reduced, thereby reducing the adhesion force. Moreover, there is no need to eject the product through ejector pins, reducing the formation of product defects and improving the product quality. At the same time, after the bottom mold 110 is demolded and the mold is closed again to clamp and fix the product, it is further convenient for the demolding of the upper mold 120, thereby further reducing the probability of product deformation and improving the product quality.

[0031] Preferably, the number of the upper molds 120 is multiple. The multiple upper molds 120 are arranged in sequence in the vertical direction, and any two adjacent upper mold cavities 121 communicate with each other. Specifically, in the Figure 1 illustrated embodiment, the number of the upper molds 120 is four. In this way, the bottom mold cavity 111 and the multiple upper mold cavities 121 jointly enclose the above-mentioned molding cavity, thereby further reducing the contact area between the mold and the product and reducing the probability of product deformation or forming other defects during demolding, and improving the product quality.

[0032] At the same time, it can be understood that in the case of setting multiple upper molds 120, during demolding, first perform demolding on the bottom mold 110, and then close the mold; next, perform demolding and closing of the upper molds 120 in sequence from bottom to top until the uppermost upper mold 120 is demolded, and then demold all the molds. In this way, demold in sequence from bottom to top, and after the lower mold is demolded and the mold is closed again to clamp the product, it can avoid product deformation caused by the demolding of the upper mold, thereby improving the product quality.

[0033] In one embodiment, the bottom mold 110 includes a bottom driving member 112 and two bottom mold members 113. The two bottom mold members 113 are arranged oppositely, for example Figure 1 arranged oppositely left and right as shown. The bottom driving member 112 is connected to at least one bottom mold member 113 to drive the two bottom mold members 113 to approach and separate from each other. The two bottom mold members 113 can approach and fit together to enclose the above-mentioned bottom mold cavity 111.

[0034] It is certain that since the bottom mold cavity 111 communicates with the upper mold cavity 121, and the upper mold 120 is located above the lower mold 110, the top of the bottom mold cavity 111 has an opening. That is, after the two bottom mold parts 113 approach and fit together, the bottoms of the two bottom mold parts 113 are completely fitted to prevent the liquid metal from flowing out, and an opening connecting the bottom mold cavity 111 and the upper mold cavity 121 is formed at the top.

[0035] Preferably, the number of the bottom driving parts 112 is two, and each bottom driving part 112 is connected to a corresponding bottom mold part 113 to drive the two bottom mold parts 113 to approach and separate from each other. Optionally, the bottom driving part 112 is a cylinder.

[0036] In one embodiment, the upper mold 120 includes an upper driving part 122 and two upper mold parts 123. The two upper mold parts 123 are arranged oppositely, and the upper driving part 122 is connected to at least one upper mold part 123 to drive the two upper mold parts 123 to approach and separate from each other, and the two upper mold parts 123 can approach and fit together to enclose and form the upper mold cavity 121.

[0037] Preferably, the number of the upper driving parts 122 is two, and each upper driving part 122 is connected to a corresponding upper mold part 123 to drive the two upper mold parts 123 to approach and separate from each other. Optionally, the upper driving part 122 is a cylinder.

[0038] In other embodiments, for the bottom mold 110 and the upper mold 120, one of the mold parts can be fixed, and the other mold part can approach and separate from the other mold part under the drive of the driving part; or one driving part can be connected to the two mold parts at the same time to drive the two mold parts to approach and separate from each other.

[0039] In one embodiment, cooling channels are provided in both the bottom mold 110 and the upper mold 120, and the cooling channels are arranged around the molding cavity; the molding mechanism 100 further includes a cooling component 130, and the cooling component 130 is communicated with the cooling channels to input a refrigerant into the cooling channels, so as to cool the liquid metal in the molding cavity into a solid product.

[0040] Specifically, cooling channels are provided in each bottom mold part 113 and each upper mold part 123, and the cooling channels are independent of the mold cavities; the cooling component 130 is communicated with the cooling channels on each mold part, so that the refrigerant circulates in each cooling channel, so as to be arranged around the molding cavity to cool the metal in the molding cavity. In addition, the arrangement of the cooling channels can accelerate the cooling rate of the liquid metal, thereby reducing the amount of metal entering the gaps of the mold, reducing the generation of burrs and flash, improving the quality of the product, and also possibly improving the production efficiency.

[0041] In one embodiment, the molding mechanism 100 further includes a temperature detector that can detect the temperature of the metal in the molding cavity, thereby controlling the cooling rate of the cooling component 130 according to the temperature, and further controlling the cooling rate of the liquid metal. Optionally, the temperature detector can be a thermocouple. By opening a temperature measurement hole in the module, the temperature measurement hole is closer to the mold cavity than the cooling channel but does not communicate with the mold cavity. The temperature measurement end of the temperature detector extends into the temperature measurement hole to reduce the influence of the cooling component 130 on temperature measurement and improve the accuracy of temperature measurement. Additionally, the temperature detector can also be an infrared sensor. The infrared sensor detects the temperature of the metal in the molding cavity through an opening above the upper mold cavity 121, thereby reducing the influence of the cooling component 130 on temperature measurement and improving the accuracy of temperature measurement.

[0042] In one embodiment, the molding mechanism 100 further includes a liquid level detector for detecting the liquid level of the liquid metal in the molding cavity, thereby controlling the pouring of the liquid metal according to the detection result of the liquid level detector to avoid too little pouring of the liquid metal or overflow of the liquid metal.

[0043] To facilitate understanding of the technical solution of the molding mechanism 100, hereby in conjunction with Figure 1 the process flow of the molding mechanism 100 in the above embodiment is described as follows: Assume Figure 1 that among the three upper molds 120 of

[0044] are the first mold, the second mold, and the third mold from bottom to top in sequence. Initially, the modules of all molds are in a separated state. First, the bottom driving member 112 drives the bottom modules 113 to approach and fit together to form the bottom mold cavity 111, and the liquid metal passes through the three upper molds 120 from above and is poured into the bottom mold cavity 111. When the liquid level detector detects that the liquid metal is about to fill the bottom mold cavity 111, the first mold is closed to form the upper mold cavity 121 (i.e., the upper driving member 122 drives the upper modules 123 to approach and fit together), forming the upper mold cavity 121 on the bottom mold cavity 111, and the liquid metal continues to be poured during this process. Similarly, when the upper mold cavity 121 of the first mold is about to be filled, the second mold is closed; when the upper mold cavity 121 of the second mold is about to be filled, the third mold is closed until the liquid level height of the liquid metal reaches the preset height, and the pouring of the liquid metal is stopped.

[0045] Please refer to Figure 2 Based on the above molding mechanism 100, the present application further provides a molding method, including the steps: S110, Pour liquid metal into the molding cavity. The molding cavity includes a lower mold cavity 111 and an upper mold cavity 121 that are interconnected.

[0046] S120, After the liquid metal cools and solidifies, demold the lower mold 110, and then close the lower mold 110 again.

[0047] S130, Demold the upper mold 120.

[0048] S140, Demold the lower mold 110.

[0049] Specifically, when demolding the lower mold 110, drive two lower mold parts 113 away from each other through the lower driving member 112; when closing the lower mold 110, drive two lower mold parts 113 close to and fit each other through the lower driving member 112; when demolding the upper mold 120, drive two upper mold parts 123 away from each other through the upper driving member 122.

[0050] In one embodiment, step S110 includes: S111, Drive two upper mold parts 123 away from each other through the upper driving member 122.

[0051] S112, Drive two lower mold parts 113 close to and fit each other through the lower driving member 112.

[0052] S113, Pour liquid metal into the lower mold cavity 111.

[0053] S114, When the liquid level height of the liquid metal in the lower mold cavity 111 reaches a preset height, drive two upper mold parts 123 close to and fit each other through the upper driving member 122.

[0054] In this way, when pouring liquid metal into the lower mold cavity, pulling the upper mold part apart can prevent the liquid metal from contacting and adhering to the upper mold part, thereby improving the quality of the product. It should be noted that if the liquid metal adheres to the upper mold part prematurely, the liquid metal is likely to cool and solidify on the inner wall of the upper mold part, thus affecting the quality of the subsequent product.

[0055] Using the above molding method, since the lower mold cavity 111 of the lower mold 110 and the upper mold cavity 121 of the upper mold 120 together form the molding cavity, the contact area between the mold and the product is reduced, thereby reducing the adhesion force. Moreover, there is no need to eject the product through ejector pins, reducing the formation of product defects and improving the product quality. At the same time, after demolding the lower mold 110 and then closing the mold again to clamp and fix the product, it is further convenient for demolding the upper mold 120, thereby further reducing the probability of product deformation and improving the product quality.

[0056] On the other hand, referring to Figure 3 , the present application also provides a casting device 10, which includes a melting furnace 200, a casting pipeline 300, and the above-mentioned forming mechanism 100. The melting furnace 200 is used to melt metal raw materials into liquid metal; one end of the casting pipeline 300 is connected to the melting furnace 200, and the other end extends to the forming mechanism 100 to guide the liquid metal into the forming cavity. Specifically, in the embodiment shown in Figure 3 , the end of the casting pipeline 300 away from the melting furnace 200 extends above the forming cavity and corresponds to the opening of the uppermost upper die cavity 121.

[0057] It can be understood that since multiple upper dies 120 are sequentially arranged above the bottom die 110 in the vertical direction, when the upper die members 123 in the upper die 120 are pulled apart, the liquid metal poured by the casting pipeline 300 can pass through the upper die 120 above and fall into the bottom die cavity 111.

[0058] In one embodiment, the casting device 10 further includes a heating member 310, which is wrapped around the casting pipeline 300 and is used to heat the metal in the casting pipeline 300 to prevent the metal in the casting pipeline 300 from cooling and blocking the pipeline. In practical applications, the heating member 310 is a heating wire.

[0059] In one embodiment, the casting device 10 further includes a casting valve 320, which is arranged between the melting furnace 200 and the casting pipeline 300. The operator can control the casting action through the casting valve 320 to avoid the operator being in close contact with the liquid metal, that is, near the opening above the forming cavity, thereby improving safety.

[0060] In one embodiment, the casting device 10 further includes a pressurizing mechanism 400, which is connected to the melting furnace 200 and is used to input pressurized gas into the melting furnace 200 to press the liquid metal in the melting furnace 200 into the forming cavity through the casting pipeline 300. By using the pressurizing mechanism 400 to press the liquid metal into the forming cavity, the pouring amount and pouring rate of the liquid metal can be more accurately controlled, thereby reducing the situation of liquid metal overflow and splashing.

[0061] At the same time, the pressurized gas can also be used to press the liquid metal in the casting pipeline 300 into the forming cavity to prevent the liquid metal from remaining in the casting pipeline 300. Specifically, the input end of the casting pipeline 300 is connected to the bottom of the melting furnace 200, and the height of the input end of the casting pipeline 300 is lower than the height of the output end of the casting pipeline 300. In this way, even if there is a small amount of liquid metal remaining, the liquid metal will flow back into the melting furnace 200 along the casting pipeline 300 and will not remain in the casting pipeline 300.

[0062] In one embodiment, the pressurizing mechanism 400 includes a gas storage tank 410, a gas supply pump 420 and a reflux assembly 430. The gas storage tank 410 is used to store pressurized gas, such as nitrogen. The gas supply pump 420 is connected between the gas storage tank 410 and the smelting furnace 200 to pump the pressurized gas in the gas storage tank 410 into the smelting furnace 200. The reflux assembly 430 is connected between the gas storage tank 410 and the smelting furnace 200, and the reflux assembly 430 has a conducting state and a blocking state.

[0063] Wherein, when the reflux assembly 430 is in the conducting state, the gas storage tank 410 and the smelting furnace 200 can be connected through the reflux assembly 430, so that the pressurized gas input into the smelting furnace 200 can flow back into the gas storage tank 410, reducing the waste of pressurized gas. When the reflux assembly 430 is in the blocking state, the gas storage tank 410 and the smelting furnace 200 cannot be connected through the reflux assembly 430, that is, the pressurized gas pumped into the smelting furnace 200 by the gas supply pump 420 can pressurize the smelting furnace 200 to press the liquid metal into the molding cavity.

[0064] It should be noted that the reflux assembly 430 may include a reflux pipeline and a reflux valve. The reflux pipeline is connected between the smelting furnace 200 and the gas storage tank 410, and the reflux valve is connected between the reflux pipeline and the smelting furnace 200 or between the reflux pipeline and the gas storage tank 410, and is used to control the on-off of the reflux pipeline, so that the reflux assembly 430 can switch between the conducting state and the blocking state.

[0065] Furthermore, a gas supply regulating valve 440 is provided between the gas supply pump 420 and the smelting furnace 200. A pressure detector is provided on the smelting furnace 200. The gas supply regulating valve 440 can adjust the input of the pressurized gas according to the detection result of the pressure detector, so as to control the pouring amount of the liquid metal. It can be understood that the pressure detector, the gas supply regulating valve 440 and the above-mentioned liquid level detector can be interlocked with each other, so as to accurately control the pouring amount of the liquid metal.

[0066] In one embodiment, the pressurizing mechanism 400 further includes a gas detector 450. A gas replenishing valve and an exhaust valve are provided on the gas storage tank 410. The gas detector 450 is arranged in the gas storage tank 410 and is used to detect the quality of the pressurized gas. The gas replenishing valve can supply fresh pressurized gas to input, and the exhaust valve can discharge the pressurized gas in the gas storage tank 410.

[0067] It should be noted that after the pressurized gas entering the smelting furnace 200 is refluxed through the reflux assembly 430, it will entrain oxidizing or corrosive gases, resulting in the contamination of nitrogen; the oxidizing gas and corrosive gas will corrode the equipment. Therefore, when the gas detector 450 detects that the pressurized gas is contaminated to a certain extent, the exhaust valve opens, and the pressurized gas in the gas storage tank 410 is discharged to the waste gas treatment mechanism, and then the exhaust valve is closed, and the air supply valve is opened to input fresh pressurized gas through the air supply valve.

[0068] It should be noted that a pressure detector is also provided on the gas storage tank 410. When inputting fresh pressurized gas through the air supply valve, the amount of the input pressurized gas can be judged according to the detection result of the pressure detector, that is, the air supply valve can be closed when the pressure detected by the pressure detector reaches the preset pressure.

[0069] In one embodiment, the casting device 10 includes a plurality of forming mechanisms 100 and a plurality of casting pipes 300. The plurality of forming mechanisms 100 correspond to the plurality of casting pipes 300 one by one, and the plurality of casting pipes 300 are all connected to the smelting furnace 200, thereby improving the casting and forming efficiency.

[0070] On the other hand, please refer to Figure 4 , the present application further provides a metal purification system, including the casting device 10 in the above embodiment. Further, the metal purification system includes a plurality of casting devices 10, and the metal purification system further includes an electrolytic cell 20, and the electrolytic cell 20 is arranged downstream of the casting device 10. In this way, the cathode plate and the anode plate can be formed by the casting device 10, and then the cathode plate and the anode plate are transported to the electrolytic cell 20 and arranged alternately and spaced in the electrolytic cell 20, and then the metal is further purified by electrolysis.

[0071] It can be understood that in this embodiment, the casting device 10 can cast and form the cathode plate and the anode plate, and the cathode plate and the anode plate will be further electrolytically purified in the electrolytic cell 20. The purified cathode plate can be taken out and put into a new casting device 10 to form a finished ingot; if the purity of the cathode plate does not meet the standard, it is taken out and put into the casting device 10 upstream of the electrolytic cell 20 to be made into a cathode plate again. After removing the anode slime, the purified anode plate is also put back into the casting device 10 upstream to be made into an anode plate again.

[0072] Further, the metal purification system further includes a conveyor belt 30 disposed between the casting device 10 and the electrolytic cell 20 for conveying the cathode plates and anode plates formed by the casting device 10 to the electrolytic cell 20. It can be understood that manipulators 40 can be provided at both the casting device 10 and the electrolytic cell 20. The cathode plates and anode plates formed in the forming mechanism 100 are transported onto the conveyor belt 30 by the manipulators 40. After being transported to the electrolytic cell 20, the cathode plates and anode plates on the conveyor belt 30 can also be alternately arranged in the electrolytic cell 20 by the manipulators 40.

[0073] It should be noted that the cathode plates and anode plates are continuously transported to the electrolytic cell 20. To avoid the accumulation of cathode plates and anode plates, at least two electrolytic cells 20 can be provided. For example, Figure 4 in which two electrolytic cells 20 work alternately. At the same time, at least two electrolytic cells 20 can also improve production efficiency.

[0074] In one embodiment, the metal purification system further includes a vacuum distillation furnace and a high-temperature transfer pump. The vacuum distillation furnace is used to melt the crude ingot or raw material into liquid metal at high temperature and perform preliminary impurity removal. The high-temperature transfer pump is connected between the vacuum distillation furnace and the melting furnace 200 and is used to pump the liquid metal in the vacuum distillation furnace into the melting furnace 200. It should be noted that the above-mentioned electrolyzed anode plates or cathode plates with insufficient purity are usually put into the melting furnace 200 for re-casting.

[0075] To facilitate the understanding of the technical solution of the metal purification system, here in combination with Figure 4 the specific process of the metal purification system in the above embodiment is described as follows: The raw material is put into the vacuum distillation furnace for melting to form liquid metal, and the liquid metal is transported to the melting furnace 200 by the high-temperature transfer pump. The pressurizing mechanism 400 inputs pressurized gas into the melting furnace 200 to press the liquid metal in the melting furnace 200 into the forming cavity through the casting pipeline 300. The cooling supply component 130 cooperates with the cooling channel to cool the liquid metal in the forming cavity, so that the liquid metal forms a cathode plate (anode plate). After forming, demoulding is carried out according to the above demoulding method. After demoulding is completed, the manipulator 40 transports the cathode plates and anode plates formed by the plurality of casting devices 10 onto the conveyor belt 30 and transports them to the electrolytic cell 20 through the conveyor belt 30. The manipulator 40 alternately arranges the cathode plates and anode plates on the conveyor belt 30 in the electrolytic cell 20. After electrolysis, the cathode plates with qualified purity are transferred to the casting device 10 for preparing finished products, and finished ingots are formed by casting through the casting device 10; the cathode plates and anode plates with insufficient purity are respectively transported back to the corresponding casting devices 10 for re-casting and recycling.

[0076] It should be noted that, in order to realize the automatic or semi-automatic operation of the above metal purification system, a control device can be set, and the control device is electrically connected to the casting device 10, the manipulator 40, the vacuum distillation furnace, the high-temperature transfer pump, etc. in the above embodiments.

[0077] In summary, the molding mechanism 100, the molding method, the casting device 10, and the metal purification system provided by the present application at least have the following advantages: 1. The bottom mold cavity 111 of the bottom mold 110 and the upper mold cavity 121 of the upper mold 120 together form a molding cavity, which reduces the contact area between the mold and the product, thereby reducing the adhesion force. Moreover, it is not necessary to eject the product through ejector pins, reducing the formation of product defects and improving the product quality; 2. Both the bottom mold 110 and the upper mold 120 are provided with cooling channels to accelerate the cooling rate of the liquid metal in the molding cavity and improve the production efficiency; 3. By using pressurized gas to press the liquid metal in the melting furnace 200 into the molding cavity, the pouring amount of the liquid metal can be accurately controlled; 4. A heating element 310 is arranged outside the casting pipe 300, which can prevent the casting pipe 300 from being blocked due to the cooling and solidification of the liquid metal in the casting pipe 300.

[0078] Although the embodiments of the present application have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A forming mechanism, characterized in that, Comprising: A bottom mold having a bottom mold cavity; And An upper mold disposed above the bottom mold and having an upper mold cavity; Wherein, the upper mold cavity penetrates through the upper mold in the vertical direction, and the bottom mold cavity communicates with the upper mold cavity to form a molding cavity.

2. The molding mechanism according to claim 1, wherein The bottom mold includes a bottom driving member and two bottom mold parts. The two bottom mold parts are arranged oppositely. The bottom driving member is connected to at least one of the bottom mold parts to drive the two bottom mold parts to approach and separate from each other. The two bottom mold parts can approach and fit together to enclose and form the bottom mold cavity.

3. The shaping mechanism according to claim 1, characterized in that, The upper mold includes an upper driving member and two upper mold parts. The two upper mold parts are arranged oppositely. The upper driving member is connected to at least one of the upper mold parts to drive the two upper mold parts to approach and separate from each other. The two upper mold parts can approach and fit together to enclose and form the upper mold cavity.

4. The shaping mechanism according to claim 1, characterized in that, Both the bottom mold and the upper mold are provided with cooling channels, and the cooling channels are arranged around the molding cavity; The molding mechanism further includes a cooling supply component, and the cooling supply component communicates with the cooling channels.

5. The shaping mechanism according to claim 1, characterized in that, The number of the upper molds is multiple, and the multiple upper molds are arranged in sequence in the vertical direction, and any two adjacent upper mold cavities communicate with each other.

6. A forming method, characterized in that, Including steps: S110, pouring liquid metal into the molding cavity. The molding cavity includes a bottom mold cavity and an upper mold cavity that communicate with each other; S120, after the liquid metal is cooled and formed, demold the bottom mold, and then close the bottom mold again; S130, demold the upper mold; S140, demold the bottom mold.

7. The forming method according to claim 6, wherein When demolding the bottom mold, drive the two bottom mold parts to separate from each other through the bottom driving member; when closing the bottom mold, drive the two bottom mold parts to approach and fit together through the bottom driving member; when demolding the upper mold, drive the two upper mold parts to separate from each other through the upper driving member.

8. A casting device, characterized in that, Including a melting furnace, a casting pipeline and the molding mechanism according to any one of claims 1-5. The melting furnace is used to melt metal into liquid metal. One end of the casting pipeline is connected to the melting furnace, and the other end extends to the molding mechanism to guide the liquid metal to be poured into the molding cavity.

9. The casting device according to claim 8, characterized in that, It further includes a pressurizing mechanism. The pressurizing mechanism is connected to the melting furnace and is used to input pressurized gas into the melting furnace to press the liquid metal in the melting furnace into the molding cavity through the casting pipeline.

10. A metal purification system, characterized in that, Including an electrolytic cell and the casting device according to claim 8 or 9. The electrolytic cell is arranged downstream of the casting device.

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