A rapid demoulding device for graphite crucible production and its demoulding method

Abstract

The present invention relates to the technical field of graphite crucible production, and specifically discloses a rapid demoulding device for graphite crucible production and a demoulding method thereof, including a frame, on which a forming module and a cleaning and pushing module are arranged; the forming module includes an upper die body and a lower die body which are arranged oppositely, a forming groove is penetrated and opened in the lower die body, a forming head is arranged on the upper die body, there is a support plate on the frame, and the forming groove, the support plate and the forming head cooperate to form a graphite crucible forming cavity; a cooling mechanism is arranged at a position corresponding to the side wall of the forming groove in the lower die body, the cleaning and pushing module includes a side pushing component capable of reciprocating telescoping, the side pushing component is arranged opposite to one side of the formed graphite crucible, and can push the formed graphite crucible away from the forming groove position to one side, and at the same time clean the residue on the top of the lower die body, which can realize rapid demoulding and automatically clean the residue on the die, and improve production efficiency.

Description

Technical Field

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

[0002] As an important container in the fields of high-temperature metallurgy, chemical engineering, etc., the forming and demoulding links in the production process of graphite crucibles are crucial. In the traditional graphite crucible production method, forming and demoulding often rely on manual operation, which is not only inefficient but also has potential safety hazards. At the same time, since the graphite crucible is formed at high temperature, the adhesion force between the crucible and the mold is likely to increase due to excessive temperature during demoulding, making demoulding difficult and even damaging the graphite crucible.

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

[0004] In addition, the existing graphite crucible production equipment also has deficiencies in the cleaning link. Since some residues are generated during the forming process of the graphite crucible, if these residues are not cleaned in time, it will affect the subsequent production process. And the traditional cleaning method often relies on manual cleaning, which is inefficient and not thorough.

[0005] Therefore, in view of the deficiencies of the existing graphite crucible production equipment in the forming, 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 drawbacks existing in the prior art, and to propose a rapid demoulding device for graphite crucible production and a demoulding method thereof. The device can realize the rapid, efficient, and stable forming and demoulding of graphite crucibles, and at the same time can automatically clean the residues on the mold, improve production efficiency, reduce production costs, and ensure product quality.

[0007] To achieve the above purpose, the present invention adopts the following technical scheme: A rapid demoulding device for graphite crucible production, including a frame, and a forming module and a cleaning and feeding module are arranged on the frame;

[0008] The forming module includes an upper die body and a lower die body which are oppositely arranged. A forming groove is penetrated and opened in the lower die body. A forming head is arranged on the upper die body at a position directly above the forming groove. A support plate is arranged on the machine frame at a position corresponding to the inner bottom of the forming groove. The forming groove, the support plate and the forming head cooperate to form a graphite crucible forming cavity. The lower die body is arranged on the machine frame in a liftable manner. The lower die body is configured with two working positions of forming and demolding. When in the forming operation, the lower die body rises, and the support plate is located at the bottom position of the forming groove. When in the demolding operation, the lower die body descends, and the support plate is located at the top position of the forming groove. The top surface of the support plate is flush with the upper surface of the upper die body. A cooling mechanism is arranged in the lower die body corresponding to the side wall of the forming groove. The cooling mechanism includes a spiral cooling sleeve arranged around the inner wall of the forming groove. Cooling water is arranged in the spiral cooling sleeve. An inlet and an outlet are respectively arranged at both ends of the spiral cooling sleeve. The inlet and the outlet of the spiral cooling sleeve are connected to a chiller through a pipeline to form a circulating cooling loop.

[0009] The cleaning and pushing module includes a side pushing component capable of reciprocating telescoping. The side pushing component is arranged opposite to one side of the formed graphite crucible. When the side pushing component extends, the side pushing component pushes the formed graphite crucible away from the forming groove position to one side, and at the same time cleans the residue on the top of the lower die body. When the side pushing component retracts, the side pushing component cleans the residue on the top of the lower die body for the second time.

[0010] To further optimize the present invention, the following technical solutions can be preferably selected:

[0011] Preferably, a rotation driving mechanism for driving the support plate to rotate is arranged on the machine frame at a position corresponding to the lower part of the support plate. The rotation driving mechanism includes a variable-frequency driving motor arranged on the machine frame. The driving shaft of the variable-frequency driving motor is coaxially arranged with the support plate. The top of the rotating shaft is connected to the support plate, and the variable-frequency driving motor drives the support plate to rotate.

[0012] Preferably, a reinforcing plate is further arranged between the rotating shaft and the support plate. A plurality of support plates are connected between the reinforcing plate and the support plate. The connecting plate is coaxially connected with the rotating shaft. Jacking devices are evenly arranged around the rotating shaft on the reinforcing plate. The jacking end of the jacking device is connected with a jacking push rod. The jacking push rod penetrates through the support plate and is coaxially connected with a jacking plate. A receiving groove is opened on the support plate corresponding to the position of the jacking plate. During the forming operation, the supporting surface of the support plate is flush with the upper surface of the support plate.

[0013] Preferably, a support seat is arranged on the machine frame at a position corresponding to the lower part of the lower die body. Electric telescopic rods I are arranged at the four corners of the support seat. The driving end of the electric telescopic rod I is connected to the lower die body. The support plate is arranged on the support seat, and the side pushing component is arranged on the lower die body.

[0014] Preferably, the side pushing assembly includes an arc-shaped pushing plate disposed opposite to the graphite crucible. The side of the arc-shaped pushing plate facing the graphite crucible is a concave surface. A side pushing drive mechanism for driving the arc-shaped pushing plate to reciprocate is provided on the frame. The side pushing drive mechanism includes an electric telescopic rod II disposed along the moving direction of the arc-shaped pushing plate. The driving end of the electric telescopic rod II is connected to the arc-shaped pushing plate through a connecting plate.

[0015] Preferably, the side pushing assembly further includes a cleaning plate arranged side by side with the arc-shaped pushing plate. A brush part that fits the top of the upper die body is provided at the bottom of the cleaning plate. The driving end of the electric telescopic rod is connected to the cleaning plate. Side guard plates are provided at both ends of the cleaning plate.

[0016] Preferably, a plurality of air blowing holes are formed on the concave surface of the arc-shaped pushing plate. A cavity communicating with the air blowing holes is formed inside the arc-shaped pushing plate. An air inlet communicating with the cavity is provided on the back of the arc-shaped pushing plate. The air inlet is connected to an air blower through a telescopic hose.

[0017] Preferably, guide rods are arranged on the lower die body along the lifting direction. Upper guide sleeves are provided on the upper die body corresponding to the positions of the guide rods. The upper guide sleeves and the guide rods cooperate with each other. A stamping column is provided on the top of the upper die body. The stamping column is connected to the driving end of an external hydraulic cylinder.

[0018] Preferably, a receiving frame with an open upper end is provided on the lower die body corresponding to the residue pushing and falling position of the side pushing assembly. The side pushing assembly pushes the residue on the top of the lower die body into the receiving frame.

[0019] A demolding method for a rapid demolding device for producing a graphite crucible includes the following steps:

[0020] S1: Molding. Put the graphite crucible raw material into the molding groove and place it on the support disk. The external control device controls the telescopic end of the external hydraulic cylinder to extend, driving the upper die body and the molding head to move downward. When the bottom of the upper die body is placed on the top of the lower die body, the molding head completely enters the interior of the molding groove. The graphite crucible is stamped and molded by the cooperation of the molding head and the molding groove. During the molding process, the variable frequency drive motor runs forward and backward continuously, driving the rotating shaft to run forward and backward, and driving the graphite crucible raw material on the top by the support disk to rotate forward and backward, finally making the thickness of the molded graphite crucible uniform.

[0021] S2: Demoulding. After the graphite crucible is press-molded, the frequency-converted drive motor stops running, and the chiller is started. The circulating cooling water in the spiral cooling sleeve is used to cool down the graphite crucible. Then, the telescopic end of the externally connected hydraulic cylinder contracts, driving the upper die body to move upward, so that the forming head disengages from the inside of the forming groove and moves away from the lower die body. At the same time, the telescopic end of the first electric telescopic rod contracts, driving the lower die body to move downward. At the same time, the lifter is started to slightly separate the bottom of the graphite crucible from the support plate. After the lower die body moves down in place, at this time, the surface of the top of the support plate and the surface of the top of the lower die body are also on the same plane, and the graphite crucible is completely separated from the forming groove;

[0022] S3: Air slag removal. The externally controlled device is used to control the telescopic end of the first electric telescopic rod to extend, so that the arc-shaped push plate approaches the graphite crucible. The induced draft fan and the frequency-converted drive motor are turned on, so that air blows out from the air blowing holes. The support plate is used to drive the graphite crucible to rotate, and the flowing air blows off the residues attached to the surface of the graphite crucible. Then, the frequency-converted drive motor and the induced draft fan stop running;

[0023] S4: Pushing material. The telescopic end of the second electric telescopic rod extends to drive the arc-shaped push plate to move to the right. The arc-shaped push plate is used to push the graphite crucible to the right until the graphite crucible moves from the right side of the top of the lower die body to the equipment of the next process in the production of the graphite crucible; while the arc-shaped push plate moves to the right, the cleaning plate also moves to the right. The brush at the bottom of the cleaning plate is used to push the residues on the upper surface of the lower die body to the right until the residues fall into the receiving frame on the right;

[0024] S5: Resetting. The telescopic end of the second electric telescopic rod contracts, driving the arc-shaped push plate and the cleaning plate to move to the left. The cleaning plate is used to clean the residues on the upper surface of the lower die body again, and the cleaned residues fall into the receiving frame on the left. Then, the telescopic end of the first electric telescopic rod extends to reset the lower die body, and the graphite crucible raw material is put into the forming groove again for subsequent forming operations.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] (1) Significantly improve the demoulding efficiency: When the telescopic end of the externally connected hydraulic cylinder contracts, it can stably and quickly drive the upper die body to move upward, so that the forming head accurately disengages from the inside of the forming groove and moves away from the lower die body. This action is not only rapid, but also reduces the risk of damage to the graphite crucible caused by improper operation, significantly improving the demoulding efficiency.

[0027] (2) Optimize the demoulding and cleaning processes: While demoulding, the telescopic end of the first electric telescopic rod contracts, driving the lower die body to move downward, so that the bottom of the cleaning plate perfectly fits the top of the lower die body, forming a flat surface. At this time, the surface of the top of the support plate is also at the same level as the surface of the top of the lower die body, ensuring that the graphite crucible can be completely and smoothly separated from the forming groove, avoiding demoulding difficulties or damage to the graphite crucible caused by uneven surfaces.

[0028] (3) Achieving automatic pushing and seamless docking: When the telescopic end of the second electric telescopic rod extends, it can stably drive the arc-shaped push plate to move rightward, and use the thrust of the arc-shaped push plate to accurately push the graphite crucible to the right. During this process, the graphite crucible can smoothly move from the right side of the top of the lower die body to the equipment of the next process in the production of the graphite crucible, realizing the automation and seamless docking of the production process, and greatly improving the production efficiency.

[0029] (4) In the present invention, through the rotation driving mechanism, during the forming process of the graphite crucible, the variable-frequency driving motor runs continuously forward and backward, driving the rotating shaft to run forward and backward, and using the support plate to drive the graphite crucible raw material at the top to rotate forward and backward, finally making the thickness of the formed graphite crucible uniform.

[0030] (5) In the forming module of the present invention, the precise cooperation between the upper die body and the lower die body, as well as the stable support of the support plate, ensure the uniformity and integrity of the graphite crucible during the forming process. At the same time, the spiral cooling sleeve in the cooling mechanism effectively reduces the mold temperature, reduces the adhesion force between the graphite crucible and the mold, makes the demolding smoother, and avoids product damage.

[0031] (6) Improving production efficiency: Through the mechanized and automated forming and demolding processes, the production cycle of the graphite crucible is significantly shortened. The liftable design of the lower die body, combined with the precise positioning of the support plate, realizes the rapid switching between forming and demolding, and greatly improves the production efficiency.

[0032] In summary, through the precise cooperation of the pushing component, the first electric telescopic rod and the rotation driving mechanism, as well as the stable pushing of the second electric telescopic rod, the present invention realizes the rapid demolding, efficient cleaning and automatic pushing in the production process of the graphite crucible, significantly improves the production efficiency, and reduces the production cost and risk. Brief Description of the Drawings

[0033] Figure 1 It is a schematic diagram of the overall structure of the rapid demolding device of the present invention;

[0034] Figure 2 It is a three-dimensional structure diagram of the cleaning and pushing module of the present invention;

[0035] Figure 3 It is a schematic diagram of the structure of the side pushing component of the present invention;

[0036] Figure 4 It is a three-dimensional structure diagram of the rotation driving mechanism of the present invention;

[0037] Figure 5 It is a schematic diagram of the internal structure of the rotation driving mechanism of the present invention;

[0038] Figure 6 It is an exploded view of the structural cooperation between the material receiving frame and the placement frame of the present invention;

[0039] Figure 7 This is a schematic structural diagram of the cooling mechanism in the lower die body of the present invention.

[0040] In the figure: 1, frame; 2, first electric telescopic rod; 3, support seat; 4, lower die body; 5, material receiving component; 6, forming groove; 7, guide rod; 8, upper die body; 9, lower guide sleeve; 10, stamping column; 11, upper guide sleeve; 12, forming head; 13, side pushing assembly; 131, arc-shaped push plate; 132, second electric telescopic rod; 133, connecting plate; 134, cleaning plate; 135, brush part; 136, side guard plate; 137, air blowing hole; 138, air inlet; 139, telescopic hose; 140, induced draft fan; 141, material receiving frame; 15, material frame; 16, rotation driving mechanism; 161, variable frequency driving motor; 162, rotating shaft; 163, support plate; 164, support disk; 165, reinforcing disk; 166, jacking device; 167, jacking push rod; 168, jacking plate; 17, cooling mechanism; 1701, spiral cooling sleeve; 1702, water inlet; 1703, water outlet. Specific embodiments

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0042] Referring to Figures 1-7 , a rapid demolding device for the production of graphite crucibles, includes a frame 1, on which a forming module and a cleaning and pushing module are installed; the forming module includes an upper die body 8 and a lower die body 4 installed oppositely, a forming groove 6 is penetrated and opened in the lower die body 4, and a forming head 12 is installed on the upper die body at a position directly above the forming groove. The forming head 12 is a columnar body with a larger upper part and a smaller lower part for subsequent demolding after forming; a support disk 164 is installed on the frame at a position corresponding to the inner bottom of the forming groove, and the forming groove 6, the support disk 164, and the forming head cooperate to form a graphite crucible forming cavity; the lower die body is installed on the frame 1 in a liftable manner, and the lower die body is configured with two working positions of forming and demolding. When in the forming operation, the lower die body rises, and the support disk is located at the bottom position of the forming groove. When in the demolding operation, the lower die body descends, and the support disk is located at the top position of the forming groove.

[0043] The cleaning and pushing module includes a side pushing component 13 that can reciprocate telescopically. The side pushing component is installed facing one side of the formed graphite crucible. When the side pushing component extends, it pushes the formed graphite crucible away from the forming groove position to one side, and at the same time cleans the residue on the top of the lower die body. When the side pushing component retracts, it cleans the residue on the top of the lower die body for the second time. In a specific design form, the side pushing component 13 includes an arc-shaped pushing plate 131 installed facing the graphite crucible. The side of the arc-shaped pushing plate facing the graphite crucible is a concave surface. A side pushing drive mechanism for driving the arc-shaped pushing plate to move reciprocally is installed on the frame. The side pushing drive mechanism includes an electric telescopic rod two 132 installed along the moving direction of the arc-shaped pushing plate. The driving end of the electric telescopic rod two 132 is connected to the arc-shaped pushing plate through a connecting plate 133. Specifically, two groups of the connecting plate 133 and the electric telescopic rod two are symmetrically designed to push both sides of the arc-shaped pushing plate, and the concave surface on the arc-shaped pushing plate is used to contact the outer wall of the graphite crucible and push it forward. The above structural design has the following advantages: (1) Efficient pushing and precise positioning: The design of the arc-shaped pushing plate enables its concave surface to closely fit the outer wall of the graphite crucible, ensuring stability and accuracy during the pushing process. The electric telescopic rod two, as the driving source, can quickly and precisely control the reciprocating movement of the arc-shaped pushing plate, thus achieving efficient pushing and precise positioning of the graphite crucible. (2) Uniform force and protection of the graphite crucible: The concave surface design of the arc-shaped pushing plate allows the pushing force to be evenly distributed on the outer wall of the graphite crucible, avoiding deformation or damage to 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) Improvement of production efficiency and automation level: Through the automatic control of the electric telescopic rod two, rapid pushing and removal of the graphite crucible can be achieved, significantly improving production efficiency. This automatic design also reduces the dependence on manual operations, reduces labor intensity, and improves the automation level of the production line. (4) Compact structure and easy maintenance: The design of the electric telescopic rod two and the moving plate makes the entire side pushing component have a compact structure, occupy less space, and is easy to integrate and install in the production line. At the same time, this design is also convenient for subsequent maintenance and repair work, reducing maintenance costs. (5) Strong adaptability and high flexibility: The design of the arc-shaped pushing plate and the electric telescopic rod two enables the side pushing component 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 two and the model and size of the connecting plate, the pushing operation of the height of the graphite crucible can be realized.

[0044] A support base 3 is installed on the frame 1 at a position corresponding to the lower die body. Electric telescopic rods 2 are installed at the four corners of the support base 3. The driving ends of the electric telescopic rods 2 are connected to the lower die body 4 to drive the lower die body 4 to lift and lower. Among them, the support disc 164 is installed on the support base, and the side-pushing assembly is installed on the lower die body; to ensure the stability of the upper die body and the lower die body during the lifting process, a plurality of guide rods 7 are installed on the lower die body along the lifting direction. Upper guide sleeves 11 are installed on the upper die body corresponding to the positions of the guide rods, and lower guide sleeves 9 are installed on the support base corresponding to the positions of the guide rods. The upper guide sleeves, the lower guide sleeves and the guide rods cooperate with each other. A stamping column is installed at the top of the upper die body, and the stamping column is connected to the driving end of an external hydraulic cylinder. The above structural design can achieve: (1) Improve the lifting stability: By installing a support base below the lower die body and installing electric telescopic rods at the four corners of the support base, the lifting and lowering of the lower die body can be precisely controlled. At the same time, the plurality of guide rods installed on the lower die body along the lifting direction cooperate with the upper guide sleeves on the upper die body and the lower guide sleeves on the support base to form a stable guiding system. This design ensures that when the upper die body and the lower die body perform lifting and lowering movements, they can maintain high stability and accuracy, avoiding forming errors caused by shaking or deviation. (2) Optimize the die matching accuracy: The cooperation of the guide rods, the upper guide sleeves and the lower guide sleeves not only improves the lifting stability, but also optimizes the matching accuracy between the upper die body and the lower die body. During the stamping process, the upper die body and the lower die body need to be closely matched to ensure the forming quality of the graphite crucible. Through the guidance of the guiding system, the upper die body and the lower die body can be accurately aligned and closely fitted, thereby improving the forming accuracy and consistency of the graphite crucible.

[0045] As a preferred embodiment, the side push assembly 13 further includes a cleaning plate 134 arranged side by side with the arc-shaped push plate. A brush part 135 that fits against the top of the upper die body is installed at the bottom of the cleaning plate. The driving end of the second electric telescopic rod 132 is also connected to the cleaning plate. Side guard plates 136 are installed at both ends of the cleaning plate. A U-shaped storage area is formed between the side guard plates 136 and the cleaning plate to prevent a large amount of waste from splashing out from both sides of the cleaning plate. The above structural design has the following design advantages: (1) Improve the cleaning efficiency and quality: The cleaning plate and the arc-shaped push plate are arranged side by side, enabling the top of the upper die body to be cleaned synchronously during the side push process. The brush part closely fits against the top of the upper die body, effectively removing residual waste and impurities and ensuring the cleanliness of the surface of the upper die body. This design not only improves the cleaning efficiency but also guarantees the cleaning quality, providing good conditions for subsequent forming work. (2) Reduce waste splashing and environmental pollution: The U-shaped storage area formed between the side guard plates and the cleaning plate can effectively prevent a large amount of waste from splashing out from both sides of the cleaning plate during the cleaning process. This design not only reduces waste waste but also avoids pollution of the production environment by waste, keeping the working area clean and hygienic. (3) Enhance the stability and durability of the equipment: The driving end of the electric telescopic rod is connected to both the cleaning plate and the arc-shaped push plate simultaneously, ensuring the synchronism and stability of the two during the side push process. This design not only improves the overall stability of the equipment but also reduces mechanical wear and failures caused by non-synchronization, extending the service life of the equipment. (4) Optimize the operation process and reduce labor intensity: By driving the cleaning plate and the arc-shaped push plate to move synchronously through the electric telescopic rod, the operation process is simplified and the labor intensity of the operator is reduced. This design enables the operator to complete the side push and cleaning work more easily, improving work efficiency and comfort.

[0046] As a preferred embodiment, a plurality of air blowing holes 137 are formed on the concave surface of the arc-shaped push plate. A cavity communicating with the air blowing holes is formed inside the arc-shaped push plate. An air inlet 138 communicating with the cavity is installed on the back of the arc-shaped push plate. The air inlet is connected to an air blower 140 through a telescopic hose 139. By using the arc-shaped push plate with air blowing holes to cooperate with the rotation of the support plate, the residues on the outer surface of the graphite crucible can be blown clean.

[0047] As a preferred embodiment, a receiving component 5 is installed on the lower die body at the residue pushing and falling position corresponding to the side push assembly. The receiving component includes a receiving frame 141 with an open upper end. The receiving frame is designed as a concave structure matching both sides of the lower module. The side push assembly pushes the residues on the top of the lower die body into the receiving frame. For easy cleaning, the receiving frame 141 is detachably installed on the material frame 15.

[0048] As a preferred embodiment, a cooling mechanism 17 is installed at a position corresponding to the side wall of the forming groove in the lower die body. The cooling mechanism includes a spiral cooling sleeve 1701 installed around the inner wall of the forming groove. Cooling water is installed in the spiral cooling sleeve. An inlet 1702 and an outlet 1703 are respectively installed at both ends of the spiral cooling sleeve. The inlet and outlet of the spiral cooling sleeve are connected to a chiller through a pipeline to form a circulating cooling circuit. The above structural design has the following design advantages: (1) Improving the forming efficiency and quality: The spiral cooling sleeve 1701 can closely adhere to the inner wall of the forming groove, and the cooling water in the circulating cooling circuit cools the forming groove evenly and efficiently. This cooling method helps to quickly reduce the temperature of the material in the forming groove, promotes the solidification and shaping of the material, and thus significantly improves the forming efficiency and quality of the graphite crucible. (2) Prolonging the service life of the mold. The forming groove is prone to thermal expansion and wear during long-term high-temperature operation. The cooling effect of the spiral cooling sleeve 1701 can effectively reduce the temperature of the forming groove and reduce the occurrence of thermal expansion and wear. This not only prolongs the service life of the mold, but also reduces the production cost and maintenance cost.

[0049] As a preferred embodiment, a rotary drive mechanism 16 for driving the support disk to rotate is installed at a position corresponding to the lower part of the support disk on the frame 1. The rotary 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. The output end of the variable-frequency drive motor 161 passes through the support seat 3 and is connected to a rotary shaft 162. The top of the rotary shaft 162 is connected to a support disk 164 that is used in cooperation with the forming groove 6. Through the support seat 3, the installation of the variable-frequency drive motor 161 is facilitated. This variable-frequency drive method not only improves the production efficiency, but also increases the operation flexibility, making the entire forming process more controllable and efficient. At the same time, during the forming process of the graphite crucible, the variable-frequency drive motor runs continuously forward and backward, driving the rotary shaft to run forward and backward, and using the support disk to drive the graphite crucible raw material at the top to rotate forward and backward, finally making the thickness of the formed graphite crucible uniform.

[0050] As a preferred embodiment, a reinforcing disc 165 is sleeved outside the rotating shaft 162. A plurality of support plates 163 are evenly connected between the reinforcing disc 165 and the limiting disc. The top of the support plate 163 is connected to the bottom of the support disc 164. Through the cooperation of the support plate 163 and the reinforcing disc 165, the support disc 164 can be further supported, ensuring the support stability of the support disc during the forming process and improving the stability of the support disc 164. In addition, for the convenience of subsequent demoulding and to prevent adhesion between the bottom of the graphite crucible and the support disc, a plurality of lifters 166 are evenly installed on the reinforcing disc around the rotating shaft. The lifting end of the lifter 166 is connected to a lifting push rod 167. The lifting push rod penetrates through the support disc and is coaxially connected to a lifting plate 168. A receiving groove is provided on the support disc corresponding to the position of the lifting plate. When maintaining the forming, the support surface of the support disc is a plane. When demoulding is required, multiple lifters lift the bottom of the graphite crucible, separating the bottom of the graphite crucible from the support disc for subsequent pushing out of the finished product. The above structural design has the following effects: (1) Enhancing support stability: The combined use of the support plate 163 and the reinforcing disc 165 provides additional support force for the support disc 164, effectively preventing deformation or damage caused by uneven stress during the forming process. This structural design not only improves the stability of the support disc 164 but also ensures the forming accuracy and quality of the graphite crucible. (2) Facilitating demoulding and protecting the finished product: By evenly installing the lifters 166 on the reinforcing disc and providing a receiving groove on the support disc to cooperate with the lifting plate 168, easy separation of the bottom of the graphite crucible from the support disc is achieved. This demoulding method not only avoids adhesion between the bottom of the graphite crucible and the support disc but also protects the integrity of the finished product, reducing damage caused by improper demoulding. At the same time, the use of the lifters also simplifies the demoulding process and improves production efficiency. (3) Optimizing the structural design and improving the durability of the equipment: The overall structure design of the rotary drive mechanism 16 is reasonable, and the connection between components is tight and stable. The variable-frequency drive motor 161 is installed through the support seat 3, which is not only convenient for maintenance and replacement but also improves the durability and stability of the entire equipment. In addition, the addition of the reinforcing disc 165 and the support plate 163 further enhances the load-bearing capacity and service life of the entire rotary drive mechanism.

[0051] A demoulding method for a rapid demoulding device for graphite crucible production includes the following steps:

[0052] S1: Forming. Put the graphite crucible raw material into the forming groove and place it on the support disc. The external control equipment controls the telescopic end of the external hydraulic cylinder to extend, driving the upper die body and the forming head to move downward. When the bottom of the upper die body is placed on the top of the lower die body, the forming head completely enters the inside of the forming groove. Using the cooperation of the forming head and the forming groove, the graphite crucible is stamped and formed. During the forming process, the variable-frequency drive motor runs continuously in forward and reverse rotation, driving the rotating shaft to rotate in forward and reverse, and then driving the graphite crucible raw material at the top to rotate in forward and reverse by the support disc, finally making the thickness of the formed graphite crucible uniform.

[0053] S2: Demolding. After the graphite crucible is press-molded, the variable-frequency drive motor stops running, and the chiller is started. The circulating cooling water in the spiral cooling sleeve is used to cool down the graphite crucible. Then, the telescopic end of the externally connected hydraulic cylinder contracts, driving the upper die body to move upward so that the forming head disengages from the inside of the forming groove and moves away from the lower die body. At the same time, the telescopic end of the first electric telescopic rod contracts, driving the lower die body to move downward. Meanwhile, the jack is started to slightly separate the bottom of the graphite crucible from the support plate. After the lower die body moves down in place, at this time, the surface of the top of the support plate and the surface of the top of the lower die body are also on the same plane, and the graphite crucible is completely separated from the forming groove;

[0054] S3: Air slag removal. The externally controlled device is used to control the telescopic end of the first electric telescopic rod to extend, so that the arc-shaped push plate approaches the graphite crucible. The induced draft fan and the variable-frequency drive motor are turned on, so that air blows out from the air blowing holes. The support plate is used to drive the graphite crucible to rotate, and the flowing air blows off the residues attached to the surface of the graphite crucible. Then, the variable-frequency drive motor and the induced draft fan stop running;

[0055] S4: Pushing material. The telescopic end of the second electric telescopic rod extends to drive the arc-shaped push plate to move to the right. The arc-shaped push plate is used to push the graphite crucible to the right until the graphite crucible moves from the right side of the top of the lower die body to the equipment of the next process in the production of the graphite crucible; while the arc-shaped push plate moves to the right, the cleaning plate also moves to the right. The brush at the bottom of the cleaning plate is used to push the residues on the upper surface of the lower die body to the right until the residues fall into the receiving frame on the right;

[0056] S5: Resetting. The telescopic end of the second electric telescopic rod contracts, driving the arc-shaped push plate and the cleaning plate to move to the left. The cleaning plate is used to clean the residues on the upper surface of the lower die body again, and the cleaned residues fall into the receiving frame on the left. Then, the telescopic end of the first electric telescopic rod extends to reset the lower die body, and the graphite crucible raw material is put into the forming groove again for subsequent forming operations.

[0057] When the present invention is in use (during the forming operation), the graphite crucible raw material is put into the forming groove and placed on the support plate. The externally controlled device controls the telescopic end of the externally connected hydraulic cylinder to extend, driving the upper die body and the forming head to move downward. After the bottom of the upper die body is placed on the top of the lower die body, the forming head completely enters the inside of the forming groove. The graphite crucible is press-molded by the cooperation of the forming head and the forming groove. During the forming process, the variable-frequency drive motor runs continuously in forward and reverse rotation, driving the rotating shaft to rotate in forward and reverse rotation. The support plate is used to drive the graphite crucible raw material on the top to rotate in forward and reverse rotation, and finally the formed graphite crucible has a uniform thickness.

[0058] After the graphite crucible is pressed and formed, the frequency conversion drive motor stops running, and the telescopic end of the external hydraulic cylinder contracts, driving the upper die body to move upward so that the forming head disengages from the inside of the forming groove and moves away from the lower die body. At the same time, the telescopic end of the first electric telescopic rod contracts, driving the lower die body to move downward. At this time, the surface of the top of the support plate and the surface of the top of the lower die body are also on the same plane, and the graphite crucible completely disengages from the forming groove. During the downward movement of the lower die body, the support plate rises relative to the lower die body, and the inner wall of the forming groove is cleaned by the support plate, improving the cleanliness inside the forming groove and facilitating the forming of the next graphite crucible.

[0059] The external control device is used to control the telescopic end of the first electric telescopic rod to extend, so that the arc-shaped push plate approaches the graphite crucible. The air blower and the frequency conversion drive motor are started, so that air is blown out from the air blowing holes. The support plate drives the graphite crucible to rotate, and the flowing air blows off the residues attached to the surface of the graphite crucible. Then the frequency conversion drive motor and the air blower stop running.

[0060] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A rapid demoulding device for graphite crucible production, comprising a frame, characterized in that: A forming module and a cleaning and pushing module are arranged on the frame; The forming module includes an upper die body and a lower die body arranged oppositely. A forming groove is penetrated and opened in the lower die body. A forming head is arranged on the upper die body at a position directly above the forming groove. A support plate is arranged on the frame at a position corresponding to the inner bottom of the forming groove. The forming groove, the support plate and the forming head cooperate to form a graphite crucible forming cavity; The lower die body is arranged on the frame in a liftable manner, and is configured with two working positions: forming and demoulding; During the forming operation, the lower die body rises, and the support plate is located at the bottom of the forming groove; During the demoulding operation, the lower die body descends, and the support plate rises to the top of the forming groove and is flush with the upper surface of the lower die body; A spiral cooling sleeve is arranged in the lower die body at a position corresponding to the side wall of the forming groove. The spiral cooling sleeve is installed around the inner wall of the forming groove. Water inlets and outlets are respectively installed at both ends of the spiral cooling sleeve. The water inlets and outlets of the spiral cooling sleeve are connected to a chiller through pipelines to form a circulating cooling circuit; The cleaning and pushing module includes a side pushing component capable of reciprocating telescoping. The side pushing component is arranged opposite to one side of the formed graphite crucible. When the side pushing component extends, the side pushing component pushes the formed graphite crucible away from the forming groove position to one side, and at the same time cleans the residue on the top of the lower die body. When the side pushing component retracts, the side pushing component cleans the residue on the top of the lower die body for the second time; A rotation driving mechanism for driving the support plate to rotate is arranged on the frame at a position corresponding to the lower part of the support plate. The rotation driving mechanism includes a variable-frequency driving motor arranged on the frame. The rotating shaft of the variable-frequency driving motor is coaxially arranged with the support plate. The top of the rotating shaft is connected to the support plate, and the variable-frequency driving motor drives the support plate to rotate; A reinforcing plate is further arranged between the rotating shaft and the support plate. A plurality of support plates are connected between the reinforcing plate and the support plate. The reinforcing plate is coaxially connected to the rotating shaft. Jacking devices are evenly arranged around the rotating shaft on the reinforcing plate. The jacking end of the jacking device is connected with a jacking push rod. The jacking push rod penetrates through the support plate and is coaxially connected with a jacking plate. A receiving groove is opened on the support plate at a position corresponding to the jacking plate. During the forming operation, the supporting surface of the support plate is flush with the upper surface of the support plate; The side pushing component 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 a concave surface. A side pushing driving mechanism for driving the arc-shaped push plate to reciprocate is arranged on the frame. The side pushing driving mechanism includes an electric telescopic rod two arranged along the moving direction of the arc-shaped push plate. The driving end of the electric telescopic rod two is connected to the arc-shaped push plate through a connecting plate; A plurality of air blowing holes are opened on the concave surface of the arc-shaped push plate. A cavity communicated with the air blowing holes is opened in the arc-shaped push plate. An air inlet communicated with the cavity is arranged on the back of the arc-shaped push plate. The air inlet is connected with an induced draft fan through a telescopic hose.

2. The rapid demoulding device for the production of graphite crucibles according to claim 1, characterized in that: A support base is arranged on the frame corresponding to the position below the lower die body. Electric telescopic rods I are arranged at the four corners of the support base. The driving ends of the electric telescopic rods I are connected to the lower die body. The support plate is arranged on the support base, and the side pushing assembly is arranged on the lower die body.

3. The rapid demoulding device for graphite crucible production according to claim 2, characterized in that: the side pushing assembly further includes a cleaning plate arranged side by side with the arc-shaped push plate. A brush part that fits the top of the upper die body is arranged at the bottom of the cleaning plate. The driving end of the electric telescopic rod is connected to the cleaning plate, and side guard plates are arranged at both ends of the cleaning plate.

4. The rapid demoulding device for graphite crucible production according to claim 3, characterized in that: a guiding rod is arranged on the lower die body along the lifting direction. An upper guiding sleeve is arranged on the upper die body corresponding to the position of the guiding rod. The upper guiding sleeve and the guiding rod cooperate with each other. A punching column is arranged at the top of the upper die body, and the punching column is connected to the driving end of an external hydraulic cylinder.

5. The rapid demoulding device for graphite crucible production according to claim 4, characterized in that: a receiving frame with an open upper end is arranged on the lower die body corresponding to the residue pushing and falling position of the side pushing assembly. The side pushing assembly pushes the residue on the top of the lower die body into the receiving frame.

6. A demoulding method for a rapid demoulding device of a graphite crucible production as described in claim 5, characterized in that, It includes the following steps: S1: Forming. Put the graphite crucible raw material into the forming groove and place it on the support plate. The external control device controls the telescopic end of the external hydraulic cylinder to extend, driving the upper die body and the forming head to move downward. When the bottom of the upper die body is placed on the top of the lower die body, the forming head completely enters the inside of the forming groove. The graphite crucible is stamped and formed by the cooperation of the forming head and the forming groove. During the forming process, the frequency conversion drive motor runs continuously in forward and reverse directions, driving the rotating shaft to run in forward and reverse directions, and then driving the graphite crucible raw material on the top by the support plate to rotate in forward and reverse directions, finally making the thickness of the formed graphite crucible uniform. S2: Demoulding. After the graphite crucible is pressed and formed, the frequency conversion drive motor stops running. Start the chiller, and use the circulating cooling water in the spiral cooling sleeve to cool the graphite crucible. Then the telescopic end of the external hydraulic cylinder contracts, driving the upper die body to move upward so that the forming head disengages from the inside of the forming groove and moves away from the lower die body. At the same time, the telescopic end of the electric telescopic rod I contracts, driving the lower die body to move downward. At the same time, start the lifter to slightly separate the bottom of the graphite crucible from the support plate. After the lower die body moves in place, at this time, the surface of the top of the support plate and the surface of the top of the lower die body are also on the same plane, and the graphite crucible completely disengages from the forming groove. S3: Air slag removal. Use the external control device to control the telescopic end of the electric telescopic rod I to extend, making the arc-shaped push plate close to the graphite crucible. Turn on the induced draft fan and the frequency conversion drive motor, so that air blows out from the air blowing holes. Drive the graphite crucible to rotate by the support plate, and the flowing air blows off the residue attached to the surface of the graphite crucible. Then the frequency conversion 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 arc-shaped push plate is used to push the graphite crucible to the right until the graphite crucible moves from the right side of the top of the lower die body to the equipment of the next process in the production of the graphite crucible; while the arc-shaped push plate moves rightward, the cleaning plate also moves rightward, and the residue on the upper surface of the lower die body is pushed to the right by the brush at the bottom of the cleaning plate until the residue falls into the material receiving frame on the right side; S5: Resetting. The telescopic end of the second electric telescopic rod contracts to drive the arc-shaped push plate and the cleaning plate to move leftward. The cleaning plate is used to clean the residue on the upper surface of the lower die body again, and the cleaned residue falls into the material receiving frame on the left side. Then, the telescopic end of the first electric telescopic rod extends to reset the lower die body, and the graphite crucible raw material is put into the forming groove again for subsequent forming operations.

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