Rapid demolding device for graphite crucible production and demolding method thereof

Abstract

The invention relates to the technical field of graphite crucible production, and particularly discloses a graphite crucible production rapid demolding device and a demolding method thereof.The graphite crucible production rapid demolding device comprises a rack, and a forming module and a cleaning and pushing module are arranged on the rack; the forming module comprises an upper die body and a lower die body which are oppositely arranged, a forming groove is formed in the lower die body in a penetrating mode, a forming head is arranged on the upper die body, a supporting disc is arranged on the machine frame, and the forming groove, the supporting disc and the forming head are matched to form a graphite crucible forming cavity. A cooling mechanism is arranged at the position, corresponding to the side wall of the forming groove, in the lower die body, the cleaning and pushing module comprises a side pushing assembly capable of stretching out and drawing back in a reciprocating mode, and the side pushing assembly is arranged right opposite to one side of the formed graphite crucible and can push the formed graphite crucible away from the forming groove to one side and clean residues on the top of the lower die body at the same time. Residues on the mold can be automatically cleaned while rapid demolding is achieved, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of graphite crucible production, in particular to a rapid demoulding device for graphite crucible production and a demoulding method thereof. Background Art

[0002] As an important container in high-temperature metallurgy, chemical industry and other fields, the molding and demolding of graphite crucibles are crucial in their production process. In the traditional production method of graphite crucibles, molding and demolding often rely on manual operation, which is not only inefficient but also poses a safety hazard. At the same time, since the graphite crucible is molded at high temperature, the adhesion between the crucible and the mold is easily increased due to excessive temperature during demolding, making demolding difficult and even damaging the graphite crucible.

[0003] In order to solve the above problems, existing graphite crucible production equipment has begun to introduce mechanized and automated production methods. However, these equipment still have some shortcomings in the molding and demolding links. For example, some equipment cannot ensure the uniformity and integrity of the graphite crucible during molding, resulting in unstable product quality; during demolding, due to the high mold temperature, the demolding efficiency is low and the mold and graphite crucible are easily damaged.

[0004] In addition, the existing graphite crucible production equipment also has shortcomings in the cleaning process. Since some residues will be generated during the graphite crucible molding process, if these residues are not cleaned in time, it will affect the subsequent production process. The traditional cleaning method often relies on manual cleaning, which is inefficient and incomplete.

[0005] Therefore, in view of the shortcomings of existing graphite crucible production equipment in the molding, demoulding and cleaning links, it is necessary to design a new type of rapid demoulding device for graphite crucible production. Summary of the invention

[0006] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a rapid demoulding device for graphite crucible production and a demoulding method thereof. The device can realize rapid, efficient and stable molding and demoulding of the graphite crucible, and can automatically clean the residue on the mold, thereby improving production efficiency, reducing production costs and ensuring product quality.

[0007] In order to achieve the above-mentioned object, the present invention adopts the following technical scheme: a rapid demoulding device for producing a graphite crucible, comprising a frame, on which a molding module and a cleaning and pushing module are arranged; The molding module comprises an upper mold body and a lower mold body which are arranged relatively to each other, a molding groove is formed through the lower mold body, a molding head is arranged on the upper mold body at a position directly above the molding groove, a support plate is arranged on the frame at a position corresponding to the bottom of the molding groove, and the molding groove, the support plate and the molding head cooperate to form a graphite crucible molding cavity; the lower mold body can be lifted and lowered on the frame, and the lower mold body is configured with two operating positions, molding and demoulding. When in the molding operation, the lower mold body rises, and the support plate is located at the bottom position of the molding groove; when in the demoulding operation, the lower mold body descends, and the support plate is located at the top position of the molding groove, and the top of the support plate is flush with the upper surface of the upper mold body; a cooling mechanism is arranged in the lower mold body at a position corresponding to the side wall of the molding groove, and the cooling mechanism comprises a spiral cooling jacket arranged around the inner wall of the molding groove, cooling water is arranged in the spiral cooling jacket, and a water inlet and a water outlet are respectively arranged at both ends of the spiral cooling jacket, and the water inlet and the water outlet of the spiral cooling jacket are connected to the chiller through a pipeline to form a circulating cooling circuit; The cleaning and pushing module includes a side push assembly that can reciprocate and extend, and the side push assembly is arranged opposite to one side of the formed graphite crucible. When the side push assembly is extended, the side push assembly pushes the formed graphite crucible away from the forming groove position to one side, and cleans the residue on the top of the lower mold body at the same time. When the side push assembly retracts, the side push assembly cleans the residue on the top of the lower mold body for a second time.

[0008] In order to further optimize the present invention, the following technical solutions may be preferably used: Preferably, a rotation drive mechanism for driving the support plate to rotate is arranged on the frame at a position corresponding to the bottom of the support plate, and the rotation drive mechanism includes a variable frequency drive motor arranged on the frame, the drive shaft of the variable frequency drive motor is coaxially arranged with the support plate, the top of the rotating shaft is connected to the support plate, and the variable frequency drive motor drives the support plate to rotate.

[0009] Preferably, a reinforcement plate is further provided between the rotating shaft and the support plate, a plurality of support plates are connected between the reinforcement plate and the support plate, the connecting plate is coaxially connected to the rotating shaft, lifters are evenly arranged around the rotating shaft on the reinforcement plate, the lifting ends of the lifters are connected to lifting push rods, the lifting push rods penetrate the support plate and are coaxially connected to the lifting plate, an accommodating groove is provided on the support plate corresponding to the position of the lifting plate, and during the molding operation, the supporting surface of the support plate is flush with the upper surface of the support plate.

[0010] Preferably, a support seat is arranged on the frame at a position corresponding to the lower part of the lower mold body, an electric telescopic rod is arranged at the four corners of the support seat, the driving end of the electric telescopic rod is connected to the lower mold body, the support plate is arranged on the support seat, and the side thrust assembly is arranged on the lower mold body.

[0011] Preferably, the side push assembly includes an arc-shaped push plate arranged opposite to the graphite crucible, the arc-shaped push plate has an inner concave surface facing the graphite crucible, and the frame is provided with a side push drive mechanism for driving the arc-shaped push plate to move back and forth, and the side push drive mechanism includes two electric telescopic rods arranged along the moving direction of the arc-shaped push plate, and the driving end of the two electric telescopic rods is connected to the arc-shaped push plate through a connecting plate.

[0012] Preferably, the side push assembly also includes a cleaning plate arranged side by side with the arc-shaped push plate, the bottom of the cleaning plate is provided with a brush portion that fits with the top of the upper mold body, the driving end of the electric telescopic rod is connected to the cleaning plate, and side guard plates are provided at both ends of the cleaning plate.

[0013] Preferably, a plurality of blowing holes are provided on the inner concave surface of the arc-shaped push plate, a cavity connected to the blowing holes is provided inside the arc-shaped push plate, an air inlet connected to the cavity is provided on the back of the arc-shaped push plate, and the air inlet is connected to the induced draft fan through a telescopic hose.

[0014] Preferably, a guide rod is provided on the lower mold body along the lifting direction, an upper guide sleeve is provided on the upper mold body corresponding to the position of the guide rod, the upper guide sleeve cooperates with the guide rod, a stamping column is provided on the top of the upper mold body, and the stamping column is connected to the driving end of the external hydraulic cylinder.

[0015] Preferably, a material receiving frame with an upper end opening is provided on the lower mold body at a position corresponding to the residue pushing and dropping position of the side push assembly, and the side push assembly pushes the residue on the top of the lower mold body into the material receiving frame.

[0016] A demoulding method for a graphite crucible production rapid demoulding device comprises the following steps: S1: Molding, putting the graphite crucible raw material into the molding groove and placing it on the support plate, the external control device controls the telescopic end of the external hydraulic cylinder to extend to drive the upper mold body and the molding head to move downward, when the bottom of the upper mold body is placed on the top of the lower mold body, the molding head completely enters the molding groove, and the graphite crucible is stamped and formed by the cooperation of the molding head and the molding groove. During the molding process, the variable frequency drive motor continuously rotates forward and reverse, driving the rotating shaft to rotate forward and reverse, and the support plate is used to drive the graphite crucible raw material on the top to rotate forward and reverse, and finally the thickness of the formed graphite crucible is uniform; S2: demoulding. After the graphite crucible is pressed and formed, the variable frequency drive motor stops running, the chiller is started, and the circulating cooling water in the spiral cooling jacket is used to cool the graphite crucible. Then the telescopic end of the external hydraulic cylinder contracts, driving the upper mold body to move upward so that the molding head is separated from the inside of the molding tank and away from the lower mold body. At the same time, the telescopic end of the electric telescopic rod 1 contracts, driving the lower mold body to move downward, and the jacking device is started at the same time to slightly separate the bottom of the graphite crucible from the support plate. After the lower mold body moves down to the right position, the surface of the top of the support plate and the surface of the top of the lower mold body are also on the same plane, and the graphite crucible is completely separated from the molding tank; S3: air slag removal, using an external control device to control the telescopic end of the electric telescopic rod to extend, so that the arc-shaped push plate is close to the graphite crucible, the induced draft fan and the variable frequency drive motor are turned on, so that air is blown out from the blowing hole, and the graphite crucible is driven to rotate by the support plate, and the flowing air blows off the residue attached to the surface of the graphite crucible, and then the variable frequency drive motor and the induced draft fan stop running; S4: Pushing the material. The telescopic end of the second electric telescopic rod extends to drive the arc-shaped push plate to move rightward, and the graphite crucible is pushed to the rightward by the arc-shaped push plate until the graphite crucible is moved from the right side of the top of the lower mold body to the next process equipment for graphite crucible production; while the arc-shaped push plate moves to the right, the cleaning plate moves to the right together, and the brush at the bottom of the cleaning plate is used to push the residue on the upper surface of the lower mold body to the right until the residue falls into the receiving frame on the right; S5: Reset, the telescopic end of the electric telescopic rod 2 is retracted, driving the arc push plate and the cleaning plate to move left, and the cleaning plate is used to clean the residue on the upper surface of the lower mold body again, and the cleaned residue falls into the receiving frame on the left, and then the telescopic end of the electric telescopic rod 1 is extended to reset the lower mold body, and the graphite crucible raw material is put into the molding groove again for subsequent molding operations.

[0017] Compared with the prior art, the present invention has the following beneficial effects: (1) Significantly improve demoulding efficiency: When the telescopic end of the external hydraulic cylinder contracts, it can stably and quickly drive the upper mold body to move upward, so that the molding head can accurately detach from the molding groove and move away from the lower mold body. This action is not only fast, but also reduces the risk of damage to the graphite crucible caused by improper operation, significantly improving demoulding efficiency.

[0018] (2) Optimize the demoulding and cleaning process: During demoulding, the telescopic end of the electric telescopic rod 1 contracts, driving the lower mold body downward, so that the bottom of the cleaning plate fits perfectly with the top of the lower mold body to form a flat surface. At this time, the surface of the top of the support plate is also kept at the same level as the surface of the top of the lower mold body, ensuring that the graphite crucible can be completely and smoothly separated from the molding groove, avoiding demoulding difficulties or damage to the graphite crucible due to uneven surfaces.

[0019] (3) Realize automated pushing and seamless docking: When the telescopic end of the second electric telescopic rod is extended, it can stably drive the arc-shaped push plate to move to the right, and use the thrust of the arc-shaped push plate to accurately push the graphite crucible to the right. In this process, the graphite crucible can be smoothly moved from the right side of the top of the lower mold body to the next process equipment for graphite crucible production, realizing the automation and seamless docking of the production process, greatly improving production efficiency.

[0020] (4) In the present invention, the variable frequency drive motor continuously rotates forward and reverse during the graphite crucible forming process through the rotary drive mechanism, driving the rotating shaft to rotate forward and reverse, and the support plate drives the graphite crucible raw material on the top to rotate forward and reverse, so that the thickness of the formed graphite crucible is finally uniform.

[0021] (5) In the molding module of the present invention, the precise matching of the upper mold body and the lower mold body, as well as the stable support of the support plate, ensure the uniformity and integrity of the graphite crucible during the molding process. At the same time, the spiral cooling jacket in the cooling mechanism effectively lowers the mold temperature, reduces the adhesion between the graphite crucible and the mold, makes demoulding smoother, and avoids damage to the product.

[0022] (6) Improve production efficiency: Through mechanized and automated molding and demoulding processes, the production cycle of graphite crucibles is significantly shortened. The lifting design of the lower mold body, combined with the precise positioning of the support plate, enables rapid switching between molding and demoulding, greatly improving production efficiency.

[0023] In summary, the present invention realizes rapid demoulding, efficient cleaning and automatic pushing in the production process of graphite crucible through the precise coordination of the pushing component, the electric telescopic rod 1 and the rotary drive mechanism, and the stable pushing of the electric telescopic rod 2, thereby significantly improving the production efficiency and reducing the production cost and risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the rapid demoulding device of the present invention; Figure 2 This is a schematic diagram of the three-dimensional structure of the cleaning and pushing module of the present invention; Figure 3 It is a structural schematic diagram of the side thrust assembly of the present invention; Figure 4 It is a three-dimensional structural schematic diagram of the rotary drive mechanism of the present invention; Figure 5 It is a schematic diagram of the internal structure of the rotary drive mechanism of the present invention; Figure 6 This is an exploded view of the structure coordination between the material receiving frame and the placement frame of the present invention; Figure 7 It is a structural schematic diagram of the cooling mechanism in the lower mold body of the present invention.

[0025] In the figure: 1, frame; 2, electric telescopic rod 1; 3, support seat; 4, lower mold body; 5, material receiving part; 6, forming groove; 7, guide rod; 8, upper mold body; 9, lower guide sleeve; 10, punching column; 11, upper guide sleeve; 12, forming head; 13, side push assembly; 131, arc push plate; 132, electric telescopic rod 2; 133, connecting plate; 134, cleaning plate; 135, brush part; 136, side guard plate; 137, blowing hole; 138 , air inlet; 139, telescopic hose; 140, induced draft fan; 141, material receiving frame; 15, material frame; 16, rotary drive mechanism; 161, variable frequency drive motor; 162, rotary shaft; 163, support plate; 164, support plate; 165, reinforcement plate; 166, lifter; 167, lift push rod; 168, lift plate; 17, cooling mechanism; 1701, spiral cooling jacket; 1702, water inlet; 1703, water outlet. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Reference Figure 1-Figure 7 , a graphite crucible production rapid demoulding device, comprising a frame 1, on which a molding module and a cleaning and pushing module are installed; the molding module comprises an upper mold body 8 and a lower mold body 4 which are relatively installed, a molding groove 6 is penetrated in the lower mold body 4, a molding head 12 is installed on the upper mold body directly above the molding groove, wherein the molding head 12 is a columnar body with a larger upper part and a smaller lower part, so as to facilitate subsequent demoulding after molding; a support plate 164 is installed on the frame corresponding to the bottom position in the molding groove, and the molding groove 6, the support plate 164, and the molding head cooperate to form a graphite crucible molding cavity; the lower mold body can be lifted and installed on the frame 1, and the lower mold body is configured with two operating positions of molding and demoulding. When in the molding operation, the lower mold body rises, and the support plate is located at the bottom position of the molding groove. When in the demoulding operation, the lower mold body descends, and the support plate is located at the top position of the molding groove; The cleaning and pushing module includes a side push assembly 13 that can reciprocate and retract. The side push assembly is installed opposite to one side of the formed graphite crucible. When the side push assembly is extended, the side push assembly pushes the formed graphite crucible away from the forming groove position to one side, and cleans the residue on the top of the lower mold body at the same time. When the side push assembly retracts, the side push assembly cleans the residue on the top of the lower mold body for the second time. In a specific design form, the side push assembly 13 includes an arc-shaped push plate 131 installed opposite to the graphite crucible, and the arc-shaped push plate has an inner concave surface facing the side of the graphite crucible. A side push driving mechanism for driving the arc-shaped push plate to move back and forth is installed on the frame. The side push driving mechanism includes an electric telescopic rod 132 installed along the moving direction of the arc-shaped push plate. The driving end of the electric telescopic rod 132 is connected to the arc-shaped push plate through a connecting plate 133. Specifically, the connecting plate 133 and the electric telescopic rod 132 are symmetrically designed in two groups, and the two sides of the arc-shaped push plate are pushed, and the inner concave surface on the arc-shaped push plate contacts the outer wall of the graphite crucible and pushes forward. The above structural design has the following advantages: (1) Efficient pushing and precise positioning: The design of the arc-shaped push plate enables its inner concave surface to fit tightly against the outer wall of the graphite crucible, ensuring stability and accuracy during the pushing process. The electric telescopic rod 2, as a driving source, can quickly and accurately control the reciprocating movement of the arc-shaped push plate, thereby achieving efficient pushing and precise positioning of the graphite crucible. (2) Uniform force and protection of the graphite crucible: The inner concave surface design of the arc-shaped push plate enables the pushing force to be evenly distributed on the outer wall of the graphite crucible, avoiding deformation or damage of the graphite crucible caused by uneven force. This design also reduces friction and scratches on the surface of the graphite crucible during the pushing process, protecting the integrity of the graphite crucible. (3) Improved production efficiency and automation: Through the automated control of the electric telescopic rod 2, the graphite crucible can be quickly pushed and removed, significantly improving production efficiency. This automated design also reduces reliance on manual operation, reduces labor intensity, and improves the automation of the production line. (4) Compact structure and easy maintenance: The design of the electric telescopic rod 2 and the moving plate makes the entire side push assembly compact, occupies a small space, and is easy to integrate and install in the production line. At the same time, this design also facilitates subsequent maintenance and servicing work, reducing maintenance costs. (5) Strong adaptability and high flexibility: The design of the arc-shaped push plate and the electric telescopic rod 2 enables the side push assembly to adapt to graphite crucibles of different sizes and shapes, improving the adaptability and flexibility of the equipment. By adjusting the telescopic length of the electric telescopic rod 2 and the model and size of the connecting plate, the graphite crucible can be pushed to a certain height.

[0028] A support seat 3 is installed on the frame 1 at a position corresponding to the lower part of the lower mold body, and an electric telescopic rod 2 is installed at the four corners of the support seat 3. The driving end of the electric telescopic rod 2 is connected to the lower mold body 4 to drive the lower mold body 4 to rise and fall. The support plate 164 is installed on the support seat, and the side thrust assembly is installed on the lower mold body. In order to ensure the stability of the upper mold body and the lower mold body during the lifting process, a plurality of guide rods 7 are installed on the lower mold body along the lifting direction, an upper guide sleeve 11 is installed on the upper mold body at a position corresponding to the guide rod, and a lower guide sleeve 9 is installed on the support seat at a position corresponding to the guide rod. The upper guide sleeve, the lower guide sleeve and the guide rod cooperate with each other. A stamping column is installed on the top of the upper mold body, and the stamping column is connected to the driving end of the external hydraulic cylinder. The above structural design can achieve: (1) Improving the lifting stability: By installing a support seat under the lower mold body and installing an electric telescopic rod 1 at the four corners of the support seat, the lifting and falling of the lower mold body can be accurately controlled. At the same time, the multiple guide rods installed on the lower mold body along the lifting direction cooperate with the upper guide sleeve on the upper mold body and the lower guide sleeve on the support seat to form a stable guide system. This design ensures that the upper and lower mold bodies can maintain a high degree of stability and accuracy when they are lifted and lowered, avoiding molding errors caused by shaking or offset. (2) Optimizing mold matching accuracy: The matching of the guide rods, upper guide sleeves and lower guide sleeves not only improves the lifting stability, but also optimizes the matching accuracy between the upper and lower mold bodies. During the stamping process, the upper and lower mold bodies need to fit closely to ensure the molding quality of the graphite crucible. Guided by the guide system, the upper and lower mold bodies can be accurately aligned and fit tightly, thereby improving the molding accuracy and consistency of the graphite crucible.

[0029] As a preferred embodiment, the side push assembly 13 also includes a cleaning plate 134 arranged side by side with the arc-shaped push plate, a brush portion 135 that fits the top of the upper mold body is installed at the bottom of the cleaning plate, and the driving end of the electric telescopic rod 132 is also connected to the cleaning plate. Side guard plates 136 are installed at both ends of the cleaning plate, and a U-shaped storage area is formed between the side guard plates 136 and the cleaning plate to prevent waste from splashing out from both sides of the cleaning plate. The above structural design has the following design advantages: (1) Improving cleaning efficiency and quality: The cleaning plate and the arc-shaped push plate are arranged side by side, and the top of the upper mold body can be cleaned synchronously during the side push process. The brush portion fits tightly to the top of the upper mold body, which can effectively remove residual waste and impurities and ensure the cleanliness of the surface of the upper mold body. This design not only improves the cleaning efficiency, but also ensures the cleaning quality, providing good conditions for subsequent molding work. (2) Reducing waste splashing and environmental pollution: The U-shaped storage area formed between the side guard plate and the cleaning plate can effectively prevent waste from splashing out from both sides of the cleaning plate during the cleaning process. This design not only reduces the waste of waste, but also avoids the pollution of waste to the production environment, keeping the work area clean and hygienic. (3) Enhance the stability and durability of the equipment: The driving end of the electric telescopic rod is connected to the cleaning plate and the arc-shaped push plate at the same time, ensuring the synchronization and stability of the two during the side-pushing process. This design not only improves the overall stability of the equipment, but also reduces the mechanical wear and failure caused by asynchrony, extending the service life of the equipment. (4) Optimize the operation process and reduce labor intensity: The electric telescopic rod drives the cleaning plate and the arc-shaped push plate to move synchronously, which simplifies the operation process and reduces the labor intensity of the operator. This design enables the operator to complete the side-pushing and cleaning work more easily, improving work efficiency and comfort.

[0030] As a preferred embodiment, a plurality of blowing holes 137 are provided on the inner concave surface of the arc-shaped push plate, a cavity connected to the blowing holes is provided inside the arc-shaped push plate, an air inlet 138 connected to the cavity is installed on the back of the arc-shaped push plate, and the air inlet is connected to the induced draft fan 140 through a telescopic hose 139. The residue on the outer surface of the graphite crucible can be blown away by rotating the arc-shaped push plate with blowing holes in conjunction with the support plate.

[0031] As a preferred embodiment, a material receiving component 5 is installed on the lower mold body corresponding to the residue pushing and dropping position of the side push assembly, wherein the material receiving component includes a material receiving frame 141 with an open upper end, wherein the material receiving frame is designed to match the concave structure on both sides of the lower module, and the side push assembly pushes the residue on the top of the lower mold body into the material receiving frame. In order to facilitate cleaning, the material receiving frame 141 can be detachably installed on the material frame 15.

[0032] As a preferred embodiment, a cooling mechanism 17 is installed in the lower mold body at a position corresponding to the side wall of the molding groove, and the cooling mechanism includes a spiral cooling jacket 1701 installed around the inner wall of the molding groove, cooling water is installed in the spiral cooling jacket, and water inlet 1702 and water outlet 1703 are installed at both ends of the spiral cooling jacket, respectively. The water inlet and water outlet of the spiral cooling jacket are connected to a chiller through a pipeline to form a circulating cooling loop; the above structural design has the following design advantages: (1) Improving molding efficiency and quality: The spiral cooling jacket 1701 can fit tightly to the inner wall of the molding groove, and the molding groove is evenly and efficiently cooled by the cooling water in the circulating cooling loop. This cooling method helps to quickly reduce the temperature of the material in the molding groove, promote the solidification and shaping of the material, and thus significantly improve the molding efficiency and quality of the graphite crucible. (2) Prolonging the life of the mold. The molding groove is prone to thermal expansion and wear under long-term high-temperature operation, and the cooling effect of the spiral cooling jacket 1701 can effectively reduce the temperature of the molding groove and reduce the occurrence of thermal expansion and wear. This not only prolongs the service life of the mold, but also reduces production and maintenance costs.

[0033] As a preferred embodiment, a rotating drive mechanism 16 for driving the support plate to rotate is installed on the frame 1 at a position corresponding to the position below the support plate, and the rotating drive mechanism 16 includes a variable frequency drive motor 161. The top of the variable frequency drive motor 161 is connected to the bottom of the support seat 3, and the output end of the variable frequency drive motor 161 passes through the support seat 3 and is connected to a rotating shaft 162. The top of the rotating shaft 162 is connected to a support plate 164 used in conjunction with the molding groove 6; the support seat 3 facilitates the installation of the variable frequency drive motor 161; this variable frequency drive method not only improves production efficiency, but also increases operational flexibility, making the entire molding process more controllable and efficient. At the same time, during the graphite crucible molding process, the variable frequency drive motor continuously runs forward and reverse, driving the rotating shaft to run forward and reverse, and the support plate is used to drive the graphite crucible raw material on the top to rotate forward and reverse, ultimately making the thickness of the molded graphite crucible uniform.

[0034] As a preferred embodiment, a reinforcing plate 165 is sleeved on the outside of the rotating shaft 162, and a plurality of support plates 163 are evenly connected between the reinforcing plate 165 and the limiting plate, and the top of the support plate 163 is connected to the bottom of the support plate 164; through the cooperation of the support plate 163 and the reinforcing plate 165, the support plate 164 can be further supported to ensure the support stability of the support plate during the molding process, thereby improving the stability of the support plate 164; in addition, in order to facilitate subsequent demoulding and prevent adhesion between the bottom of the graphite crucible and the support plate, a lifter 166 is evenly installed around the rotating shaft on the reinforcing plate, wherein a lifting end of the lifter 166 is connected to a lifting push rod 167, which passes through the support plate and is coaxially connected to a lifting plate 168, and a receiving groove is provided on the support plate corresponding to the position of the lifting plate, so that the support surface of the support plate is flat during molding, and when demoulding is required, multiple lifters lift the bottom of the graphite crucible to separate the bottom of the graphite crucible from the support plate so that the finished product can be subsequently pushed out. The above structural design has the following effects: (1) Enhanced support stability: The combined use of the support plate 163 and the reinforcement plate 165 provides additional support force for the support plate 164, effectively preventing deformation or damage caused by uneven force during the molding process. This structural design not only improves the stability of the support plate 164, but also ensures the precision and quality of the graphite crucible molding. (2) Facilitates demoulding and protects the finished product: By evenly installing the lifters 166 on the reinforcement plate and providing a receiving groove on the support plate to match the lifter plate 168, the bottom of the graphite crucible and the support plate can be easily separated. This demoulding method not only avoids adhesion between the bottom of the graphite crucible and the support plate, but also protects the integrity of the finished product and reduces damage caused by improper demoulding. At the same time, the use of the lifter also simplifies the demoulding process and improves production efficiency. (3) Optimize the structural design and improve the durability of the equipment: The structural design of the entire rotary drive mechanism 16 is reasonable, and the connection between the components is tight and stable. The variable frequency drive motor 161 is installed through the support base 3, which is not only convenient for maintenance and replacement, but also improves the durability and stability of the entire device. In addition, the addition of the reinforcement plate 165 and the support plate 163 further enhances the bearing capacity and service life of the entire rotary drive mechanism.

[0035] A demoulding method for a graphite crucible production rapid demoulding device comprises the following steps: S1: Molding, putting the graphite crucible raw material into the molding groove and placing it on the support plate, the external control device controls the telescopic end of the external hydraulic cylinder to extend to drive the upper mold body and the molding head to move downward, when the bottom of the upper mold body is placed on the top of the lower mold body, the molding head completely enters the molding groove, and the graphite crucible is stamped and formed by the cooperation of the molding head and the molding groove. During the molding process, the variable frequency drive motor continuously rotates forward and reverse, driving the rotating shaft to rotate forward and reverse, and then the support plate is used to drive the graphite crucible raw material on the top to rotate forward and reverse, and finally the thickness of the formed graphite crucible is uniform; S2: demoulding. After the graphite crucible is pressed and formed, the variable frequency drive motor stops running, the chiller is started, and the circulating cooling water in the spiral cooling jacket is used to cool the graphite crucible. Then the telescopic end of the external hydraulic cylinder contracts, driving the upper mold body to move upward so that the molding head is separated from the inside of the molding tank and away from the lower mold body. At the same time, the telescopic end of the electric telescopic rod 1 contracts, driving the lower mold body to move downward, and the jacking device is started at the same time to slightly separate the bottom of the graphite crucible from the support plate. After the lower mold body moves down to the right position, the surface of the top of the support plate and the surface of the top of the lower mold body are also on the same plane, and the graphite crucible is completely separated from the molding tank; S3: air slag removal, using an external control device to control the telescopic end of the electric telescopic rod to extend, so that the arc-shaped push plate is close to the graphite crucible, the induced draft fan and the variable frequency drive motor are turned on, so that air is blown out from the blowing hole, and the graphite crucible is driven to rotate by the support plate, and the flowing air blows off the residue attached to the surface of the graphite crucible, and then the variable frequency drive motor and the induced draft fan stop running; S4: Pushing the material. The telescopic end of the second electric telescopic rod extends to drive the arc-shaped push plate to move rightward, and the graphite crucible is pushed to the rightward by the arc-shaped push plate until the graphite crucible is moved from the right side of the top of the lower mold body to the next process equipment for graphite crucible production; while the arc-shaped push plate moves to the right, the cleaning plate moves to the right together, and the brush at the bottom of the cleaning plate is used to push the residue on the upper surface of the lower mold body to the right until the residue falls into the receiving frame on the right; S5: Reset, the telescopic end of the electric telescopic rod 2 is retracted, driving the arc push plate and the cleaning plate to move left, and the cleaning plate is used to clean the residue on the upper surface of the lower mold body again, and the cleaned residue falls into the receiving frame on the left, and then the telescopic end of the electric telescopic rod 1 is extended to reset the lower mold body, and the graphite crucible raw material is put into the molding groove again for subsequent molding operations.

[0036] When the present invention is in use (during molding operation), a graphite crucible raw material is put into a molding groove and placed on a support plate, an external control device controls the telescopic end of an external hydraulic cylinder to extend to drive an upper mold body and a molding head to move downward, and when the bottom of the upper mold body is placed on the top of the lower mold body, the molding head completely enters the molding groove, and the graphite crucible is stamped and formed by the cooperation of the molding head and the molding groove. During the molding process, the variable frequency drive motor continuously rotates forward and reversely to drive the rotating shaft to rotate forward and reversely, and the support plate is used to drive the graphite crucible raw material on the top to rotate forward and reversely, so that the thickness of the molded graphite crucible is finally uniform.

[0037] After the graphite crucible is pressed and formed, the variable frequency drive motor stops running, the telescopic end of the external hydraulic cylinder contracts, driving the upper mold body to move up so that the forming head is separated from the inside of the forming groove and away from the lower mold body. At the same time, the telescopic end of the electric telescopic rod contracts, driving the lower mold body to move down. At this time, the surface of the top of the support plate and the surface of the top of the lower mold body are also on the same plane, and the graphite crucible is completely separated from the forming groove. During the downward movement of the lower mold body, the support plate rises relative to the lower mold body, and the inner wall of the forming groove is cleaned by the support plate, which improves the cleanliness of the inside of the forming groove and is conducive to the molding of the next graphite crucible.

[0038] An external control device is used to control the telescopic end of the electric telescopic rod to extend, so that the arc-shaped push plate is close to the graphite crucible, the induced draft fan and the variable frequency drive motor are turned on, so that air is blown out from the blowing hole, and the graphite crucible is driven to rotate by the support plate. The flowing air blows off the residue attached to the surface of the graphite crucible, and then the variable frequency drive motor and the induced draft fan stop running.

[0039] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A rapid demoulding device for producing a graphite crucible, comprising a frame, characterized in that: The frame is provided with a forming module and a cleaning and pushing module; The molding module comprises an upper mold body and a lower mold body which are arranged relatively to each other, a molding groove is formed through the lower mold body, a molding head is arranged on the upper mold body at a position directly above the molding groove, a support plate is arranged on the frame at a position corresponding to the bottom of the molding groove, and the molding groove, the support plate and the molding head cooperate to form a graphite crucible molding cavity; the lower mold body can be lifted and lowered on the frame, and the lower mold body is configured with two operating positions, molding and demoulding. When in the molding operation, the lower mold body rises, and the support plate is located at the bottom position of the molding groove; when in the demoulding operation, the lower mold body descends, and the support plate is located at the top position of the molding groove, and the top of the support plate is flush with the upper surface of the upper mold body; a cooling mechanism is arranged in the lower mold body at a position corresponding to the side wall of the molding groove, and the cooling mechanism comprises a spiral cooling jacket arranged around the inner wall of the molding groove, cooling water is arranged in the spiral cooling jacket, and a water inlet and a water outlet are respectively arranged at both ends of the spiral cooling jacket, and the water inlet and the water outlet of the spiral cooling jacket are connected to the chiller through a pipeline to form a circulating cooling circuit; The cleaning and pushing module includes a side push assembly that can reciprocate and extend, and the side push assembly is arranged opposite to one side of the formed graphite crucible. When the side push assembly is extended, the side push assembly pushes the formed graphite crucible away from the forming groove position to one side, and cleans the residue on the top of the lower mold body at the same time. When the side push assembly retracts, the side push assembly cleans the residue on the top of the lower mold body for a second time.

2. A graphite crucible production rapid demoulding device according to claim 1, characterized in that: A rotation drive mechanism for driving the support plate to rotate is arranged on the frame at a position corresponding to the lower portion of the support plate. The rotation drive mechanism includes a variable frequency drive motor arranged on the frame. The drive shaft of the variable frequency drive motor is coaxially arranged with the support plate. The top of the rotation shaft is connected to the support plate. The variable frequency drive motor drives the support plate to rotate.

3. A graphite crucible production rapid demoulding device according to claim 2, characterized in that: A reinforcement plate is also provided between the rotating shaft and the support plate, a plurality of support plates are connected between the reinforcement plate and the support plate, the connecting plate is coaxially connected to the rotating shaft, jacks are evenly arranged on the reinforcement plate around the rotating shaft, the lifting end of the jack is connected to a lifting push rod, the lifting push rod passes through the support plate and is coaxially connected to a lifting plate, an accommodating groove is provided on the support plate corresponding to the position of the lifting plate, and during the molding operation, the supporting surface of the support plate is flush with the upper surface of the support plate.

4. A graphite crucible production rapid demoulding device according to claim 1, characterized in that: A support seat is arranged on the frame at a position corresponding to the lower part of the lower mold body, an electric telescopic rod is arranged at the four corners of the support seat, a driving end of the electric telescopic rod is connected to the lower mold body, the support plate is arranged on the support seat, and the side thrust assembly is arranged on the lower mold body.

5. A graphite crucible production rapid demoulding device according to claim 1, characterized in that: The side push assembly includes an arc-shaped push plate arranged opposite to the graphite crucible, the side of the arc-shaped push plate facing the graphite crucible is an inner concave surface, the frame is provided with a side push drive mechanism for driving the arc-shaped push plate to move back and forth, the side push drive mechanism includes two electric telescopic rods arranged along the moving direction of the arc-shaped push plate, and the driving end of the two electric telescopic rods is connected to the arc-shaped push plate through a connecting plate.

6. A graphite crucible production rapid demoulding device according to claim 5, characterized in that: The side push assembly also includes a cleaning plate arranged side by side with the arc-shaped push plate, the bottom of the cleaning plate is provided with a brush portion that fits with the top of the upper mold body, the driving end of the electric telescopic rod is connected to the cleaning plate, and side guard plates are provided at both ends of the cleaning plate.

7. A graphite crucible production rapid demoulding device according to claim 5, characterized in that: A plurality of blowing holes are provided on the inner concave surface of the arc-shaped push plate, a cavity connected with the blowing holes is provided inside the arc-shaped push plate, an air inlet connected with the cavity is provided on the back of the arc-shaped push plate, and the air inlet is connected with an induced draft fan through a telescopic hose.

8. A graphite crucible production rapid demoulding device according to claim 1, characterized in that: A guide rod is arranged on the lower mold body along the lifting direction, an upper guide sleeve is arranged on the upper mold body corresponding to the position of the guide rod, the upper guide sleeve cooperates with the guide rod, a stamping column is arranged on the top of the upper mold body, and the stamping column is connected to the driving end of the external hydraulic cylinder.

9. A graphite crucible production rapid demoulding device according to claim 1, characterized in that: A material receiving frame with an upper end opening is arranged on the lower mold body at a position corresponding to the residue pushing and dropping position of the side push assembly, and the side push assembly pushes the residue on the top of the lower mold body into the material receiving frame.

10. A demoulding method for producing a graphite crucible based on the rapid demoulding device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Molding, putting the graphite crucible raw material into the molding groove and placing it on the support plate, the external control device controls the telescopic end of the external hydraulic cylinder to extend to drive the upper mold body and the molding head to move downward, when the bottom of the upper mold body is placed on the top of the lower mold body, the molding head completely enters the molding groove, and the graphite crucible is stamped and formed by the cooperation of the molding head and the molding groove. During the molding process, the variable frequency drive motor continuously rotates forward and reverse, driving the rotating shaft to rotate forward and reverse, and then the support plate is used to drive the graphite crucible raw material on the top to rotate forward and reverse, and finally the thickness of the formed graphite crucible is uniform; S2: demoulding. After the graphite crucible is pressed and formed, the variable frequency drive motor stops running, the chiller is started, and the circulating cooling water in the spiral cooling jacket is used to cool the graphite crucible. Then the telescopic end of the external hydraulic cylinder contracts, driving the upper mold body to move upward so that the molding head is separated from the inside of the molding tank and away from the lower mold body. At the same time, the telescopic end of the electric telescopic rod 1 contracts, driving the lower mold body to move downward, and the jacking device is started at the same time to slightly separate the bottom of the graphite crucible from the support plate. After the lower mold body moves down to the right position, the surface of the top of the support plate and the surface of the top of the lower mold body are also on the same plane, and the graphite crucible is completely separated from the molding tank; S3: air slag removal, using an external control device to control the telescopic end of the electric telescopic rod to extend, so that the arc-shaped push plate is close to the graphite crucible, the induced draft fan and the variable frequency drive motor are turned on, so that air is blown out from the blowing hole, and the graphite crucible is driven to rotate by the support plate, and the flowing air blows off the residue attached to the surface of the graphite crucible, and then the variable frequency drive motor and the induced draft fan stop running; S4: Pushing the material. The telescopic end of the second electric telescopic rod extends to drive the arc-shaped push plate to move rightward, and the graphite crucible is pushed to the rightward by the arc-shaped push plate until the graphite crucible is moved from the right side of the top of the lower mold body to the next process equipment for graphite crucible production; while the arc-shaped push plate moves to the right, the cleaning plate moves to the right together, and the brush at the bottom of the cleaning plate is used to push the residue on the upper surface of the lower mold body to the right until the residue falls into the receiving frame on the right; S5: Reset, the telescopic end of the electric telescopic rod 2 is retracted, driving the arc push plate and the cleaning plate to move left, and the cleaning plate is used to clean the residue on the upper surface of the lower mold body again, and the cleaned residue falls into the receiving frame on the left, and then the telescopic end of the electric telescopic rod 1 is extended to reset the lower mold body, and the graphite crucible raw material is put into the molding groove again for subsequent molding operations.

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