Graphite inner container forming processing equipment and method for electric rice cooker

Abstract

The application discloses a kind of electric rice cooker graphite inner container forming processing equipment and method, and the application relates to graphite inner container forming technical field.The cylinder is fixedly connected with square plate, square groove is arranged on the inner wall side of cylinder, contact block is arranged in square groove, contact block is rubber material, circular rod is slidably connected with the inner wall of square groove, one end of circular rod away from square groove is fixedly connected with contact block, compression spring is sleeved on the outside of circular rod, the both ends of compression spring are fixedly connected with the inner wall of square groove and the side of contact block close to circular rod, the number of contact block is multiple.The electric rice cooker graphite inner container forming processing equipment and method, multiple contact blocks are evenly distributed along the outside of mould, the weight of mould and the pressure generated during processing, such as lateral force during mould pressing, can be dispersed to each contact block, to avoid the inclination or shaking caused by single-point support due to stress concentration, improve the support stability of mould.

Description

Technical Field

[0001] This invention relates to the field of graphite inner pot molding technology, specifically to a graphite inner pot molding and processing equipment and method for rice cookers. Background Technology

[0002] Graphite, an allotrope of carbon, is chemically stable and corrosion-resistant. It also possesses excellent thermal, electrical, and magnetic conductivity, and contains no heavy metals or harmful organic components. Furthermore, graphite releases far-infrared negative oxygen ions when heated, allowing for penetrating heating of food and promoting the more complete release of nutrients, thus enhancing the taste and quality of food. Therefore, it is ideally suited for making rice cooker inner pots. However, the inner pots of commonly used household rice cookers are primarily made of metals such as aluminum, iron, and stainless steel, which are prone to food sticking during cooking. Manufacturers typically apply a non-stick coating to the metal inner pot, but over time, this coating can peel off and fade, affecting the lifespan of the inner pot and potentially posing a health risk.

[0003] The molds in existing equipment rely solely on the upper and lower end faces for fixation. Under the high pressure of the hydraulic press, the molds are prone to bulging and deformation due to radial stress, causing the cavity size to deviate from the design value and the molding accuracy of the inner liner to decrease. Moreover, because the traditional molds have a fixed structure, the entire mold needs to be replaced when changing molds, which is time-consuming and costly. Summary of the Invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: a graphite inner pot molding and processing equipment and method for rice cookers, including a platform, a sliding groove opened on the top of the platform, a guide rod fixedly connected to the top of the platform, a top plate fixedly connected to the top of the guide rod, a hydraulic cylinder fixedly connected to the top of the top plate, and a sliding plate fixedly connected to the output end of the hydraulic cylinder.

[0005] Pressure assembly, which is fixedly installed at the bottom center of the skateboard;

[0006] The mobile component is installed on top of the platform;

[0007] There are four guide rods, which are evenly distributed at the corner of the top plate near the guide rods. The output end of the hydraulic cylinder passes through the top plate. The slide plate is slidably connected to multiple guide rods. The moving component is slidably connected to the platform through a slide groove. A guide sleeve is fixedly connected to the top of the platform near the guide rods. The guide sleeve is fitted on the outside of the guide rods. A guide rod is fixedly connected to the bottom of the slide plate. There are four guide rods, which are evenly distributed around the pressure component.

[0008] The movable component includes a square plate, and a support member is fixedly connected to the top center of the square plate. A mold is provided inside the support member.

[0009] Preferably, the support includes a cylinder body fixedly connected with the square plate, a square groove is formed in the inner wall side of the cylinder body, a contact block is arranged in the square groove, the contact block is made of rubber, the top of the contact block is obliquely arranged close to one side of the cylinder body, the mold is placed in the cylinder body, the bottom of the mold is in contact with the inclined side of the contact block and is extruded, the compression spring is compressed under stress, so that the contact block is driven to move the round rod away from the mold under stress, under the elastic force of the compression spring, the mold is installed in the cylinder body, the elastic clamping of the multiple contact blocks on the outside can realize stable fixation without adjusting the clamping structure for molds of different sizes, the quick switching of the mold can be realized, the versatility of the equipment is improved, and the elastic force is uniformly distributed on the outer side of the mold by the multiple contact blocks, even if there is a slight size deviation on the outer side of the mold, the elastic clamping can compensate for the gap through the slight deformation of the contact block, local looseness in the clamping process is avoided, and the multiple-point uniform stress mode can improve the adhesion of the mold and the clamping structure, ensure that the mold is always in a stable state during high-pressure processing, reduce the position deviation caused by vibration, the round rod is slidably connected to the inner wall of the square groove, one end of the round rod away from the square groove is fixedly connected with the contact block, the compression spring is sleeved outside the round rod, and the two ends of the compression spring are fixedly connected with the inner wall of the square groove and the side of the contact block close to the round rod, respectively, the number of contact blocks is multiple, and the multiple contact blocks are uniformly distributed along the outer side of the mold, the weight of the mold and the pressure generated during processing, such as the lateral force during mold pressing, can be dispersed to each contact block, the single-point support is avoided due to stress concentration, the support stability of the mold is improved, the mold is always in the preset working position during processing, the product size deviation caused by unstable support is reduced, the number of square grooves is multiple, the multiple square grooves are uniformly distributed on the inner wall of the cylinder body, the round rods are symmetrically arranged at both ends of the contact block, square holes are formed in the outer side of the cylinder body, and the number of square holes is multiple.

[0010] Preferably, the inside of the support is provided with an electric push rod, the output end of the electric push rod penetrates the barrel and extends to the inside of the barrel, the inside of the support is provided with a buffer assembly, the buffer assembly is located in the inside of the barrel, and the buffer assembly is fixedly connected with the output end of the electric push rod, the slider is located in the inside of the sliding groove, the bottom of the square plate is fixedly connected with the slider, the square plate and the platform are slidably connected through the slider and the sliding groove, the side edge of the square plate is slidably connected with a positioning block, arc grooves are formed at both ends of the positioning block, the positioning block has magnetism, the magnetism between the two positioning blocks is the same, the mold is installed in the inside of the barrel, after installation, graphite powder is added to the inside of the mold, then the square plate slides in the inside of the sliding groove through the slider, so as to drive the mold to move towards the guide rod, the positioning block contacts and is extruded with the guide rod, the positioning block moves in the inside of the square plate away from the guide rod, when the square plate moves to a specified position, under the action of the mutual repulsion between the two positioning blocks, the positioning block moves towards the guide rod, so that the guide sleeve is located in the arc groove, the arc groove and the guide sleeve cooperate to quickly guide the mold to the preset position, avoiding repeated adjustment caused by inaccurate manual alignment, and then performing forming processing, when the compression molding is completed, the square plate slides in the inside of the sliding groove through the slider at the bottom, driving the formed blank to move away from the pressure assembly, at this time the electric push rod works, the buffer assembly and the top blank are ejected from the barrel, so as to facilitate material taking, the number of the positioning blocks is two, the two positioning blocks are symmetrically arranged with the square plate as the center, one positioning block is fixedly connected with a fixed plate near the middle of one side of the square plate, the other positioning block is fixedly connected with an L-shaped plate near the end of one side of the square plate, the number of the L-shaped plates is two, the two L-shaped plates are symmetrically arranged with the fixed plate as the center, a limiting block is fixedly connected to one end of the fixed plate away from the positioning block, and the limiting block is located at the interval between the two L-shaped plates.

[0011] Preferably, the buffer assembly comprises a bottom plate, the bottom plate is located in the inside of the mold, the bottom plate is slidably connected with the inner wall of the mold, the bottom plate is fixedly connected with the output end of the electric push rod at the middle of the bottom, in the processing process, the bottom of the base is prone to direct collision or to bear instantaneous impact force with the equipment workbench, the elastic plate is compressed under force, at this time the elastic plate can absorb the impact force by itself deformation, can reduce the degree of instantaneous impact, avoid cracks and depressions on the bottom of the mold, prolong the service life of the mold as a whole, and the buffer assembly can avoid local loosening or clumping of the powder at the bottom due to impact, ensure the uniform density of the blank bottom, reduce the risk of cracking in the subsequent roasting and graphitization process, the side of the bottom plate away from the electric push rod is fixedly connected with an elastic plate, the end of the elastic plate away from the bottom plate is fixedly connected with a base, the top middle of the base is fixedly connected with a protrusion, and the top edge of the base is fixedly connected with a side plate.

[0012] Preferably, the pressure assembly comprises a fixed seat fixedly connected to the middle of the bottom of the sliding plate, a pressure piece mounted on the outer bottom of the fixed seat, an intermediate ring fixedly connected to the outer side of the pressure piece, a reset spring sleeved on the outer side of the pressure piece, when the mold moves to the designated position, the hydraulic cylinder drives the sliding plate to move downward on the guide rod, so that the connecting seat at the bottom of the sliding plate drives the pressure head to move downward, so that the pressure head and the circular ring contact and extrude the material in the mold. Because the graphite blank has high brittleness, the edge of the blank is prone to crack due to instantaneous stress concentration, the circular ring will contact the edge of the blank before the pressure head at the initial stage of stamping, at this time, the elastic deformation energy of the reset spring can convert the impact force into progressive pressure, so that the edge of the blank slowly deforms in the pre-tightening state, avoiding the collapse caused by excessive local stress, and as the pressure head continues to move downward, the pressure head applies radial pressure to the middle of the blank, and at the same time, the circular ring continuously applies radial pressure to the outside of the blank under the action of the spring force, which can guide the graphite particles to flow to the pressure balance area, avoid the formation of thick walls due to material accumulation or thin walls due to excessive stretching, control the overall wall thickness difference of the liner within a smaller range, improve the consistency of heat conduction, the outer side of the pressure piece is slidably connected with the circular ring, the side close to the pressure piece of the circular ring is provided with a rod, the two ends of the reset spring are fixedly connected with the intermediate ring and the circular ring respectively, the inside of the pressure piece is provided with an elastic plate, the two ends of the elastic plate are fixedly connected with the fixed seat and the pressure piece respectively, and a groove is formed in the middle of the bottom of the pressure piece. When the pressure head is pressed down, the protrusion at the bottom of the mold will be embedded in the groove of the pressure head to form an embedded extrusion structure. This cooperation can direct the material in the middle of the blank to flow to the surrounding, avoiding the formation of wrinkles or excessive accumulation of the middle material due to lack of flow during traditional plane stamping. Especially for the liner which needs to reserve a contact area for the heating disc at the bottom, the protrusion can forcibly supplement the material to the side wall, so that the thickness transition of the bottom and the side wall is more uniform, reducing the subsequent cutting amount, and the groove is matched with the protrusion.

[0013] Preferably, the fixed seat comprises a connecting seat, a cylinder fixedly connected to the middle of the end away from the sliding plate, a through groove formed in the outer side of the cylinder, one end of the through groove being provided with an inclined groove, the inclined groove and the through groove being perpendicular to each other, a stepped hole being formed in the middle of the end of the cylinder away from the connecting seat, and a clamping groove being formed in the outer side of the top of the stepped hole.

[0014] Preferably, the pressure piece comprises a pressure head, the pressure head is sleeved on the outside of the cylinder, the inner wall bottom of the pressure head is fixedly connected with an intermediate rod, a guide groove is formed on the axial outer side of the intermediate rod, the outer side of the intermediate rod is sleeved with a positioning ring, the intermediate rod is slidably connected with the positioning ring through the guide groove, the outer side of the positioning ring is fixedly connected with a clamping block, the clamping block is L-shaped, the clamping block is elastic, the pressure head is installed on the cylinder of the connecting seat, so that the fixed block in the pressure head is located in the through groove, and the intermediate rod is located in the stepped hole, then when the fixed block moves to the bottom of the through groove, the pressure head is rotated, so that the pressure head drives the fixed block to move to the inside of the inclined groove in the through groove, at the same time, the clamping block contacts with the inner wall of the stepped hole and is extruded, the clamping block is contracted under the force, the clamping block is located in the notch, the positioning ring rotates with the pressure head through the intermediate rod, so that the clamping block is located in the clamping groove, the installation of the pressure head is quickly completed through the clamping cooperation, the working efficiency is improved, the equipment downtime adjustment time is minimized, the edge of the positioning ring close to the clamping block is provided with a notch, the clamping block is located in the notch, the clamping block is L-shaped, the end of the clamping block away from the positioning ring is located in the clamping groove, a through hole is formed on the inner side of the intermediate ring close to the pressure head, a rod is located in the through hole, a fixed block is fixedly connected to the inner wall of the pressure head, and the fixed block is located in the through groove and the inclined groove.

[0015] A graphite inner liner forming processing method of an electric rice cooker, comprising the following steps:

[0016] Step one, place the mold, place the mold in the inside of the cylinder, the bottom of the mold contacts with the inclined edge of the contact block and is extruded, under the elastic force of the compression spring, the mold is installed in the inside of the cylinder;

[0017] Step two, install the pressure head, install the pressure head on the cylinder of the connecting seat, slide and then rotate the pressure head, so that the pressure head drives the fixed block to move to the inside of the inclined groove in the through groove, the installation of the pressure head is quickly completed through the clamping cooperation;

[0018] Step three, move the feeding, place the graphite powder in the inside of the mold, the square plate slides in the inside of the sliding groove through the sliding block, when the square plate moves to the specified position, under the mutual repulsion between the two positioning blocks, the guide sleeve is located in the arc groove, the arc groove and the guide sleeve cooperate to quickly guide the mold to the preset position;

[0019] Step four, pressure forming, the hydraulic cylinder works to drive the sliding plate to move downward on the guide rod, so that the connecting seat at the bottom of the sliding plate drives the pressure head to move downward, so that the pressure head and the circular ring contact with the material in the inside of the mold and are extruded, so that the graphite powder in the inside of the mold is pressed and formed;

[0020] Step 5: Demolding and material removal. The hydraulic cylinder drives the pressure head and the ring to reset. The square plate slides inside the slide groove through the bottom slider, moving the formed blank away from the pressure component. At this time, the electric push rod works to push the buffer component and the top blank out of the cylinder, thus facilitating material removal.

[0021] This invention provides a molding and processing equipment and method for graphite inner pots in rice cookers. It has the following beneficial effects:

[0022] I. The graphite inner pot molding and processing equipment and method for rice cookers utilizes the elastic clamping of multiple contact blocks on the outer side. This allows for stable fixing of molds of different sizes without adjusting the clamping structure, enabling rapid mold switching and improving the versatility of the equipment. Simultaneously, the multiple contact blocks apply elastic forces evenly distributed to the outer surface of the mold. Even if there are slight dimensional deviations on the outer surface of the mold, the elastic clamping can compensate for the gaps through the slight deformation of the contact blocks, preventing local loosening during the clamping process.

[0023] II. The graphite inner pot molding and processing equipment and method for rice cookers uses multiple contact blocks evenly distributed along the outside of the mold to distribute the weight of the mold and the pressure generated during processing, such as the lateral force during molding, to each contact block. This avoids tilting or shaking caused by concentrated force on a single point of support, improves the support stability of the mold, ensures that the mold is always in the preset working position during processing, and reduces product size deviation caused by unstable support.

[0024] III. The equipment and method for forming and processing the graphite inner pot of the rice cooker can absorb the impact force through the deformation of the spring plate, thereby reducing the instantaneous impact force, avoiding cracks and dents at the bottom of the mold, extending the overall service life of the mold, and the buffer component can prevent the bottom powder from becoming loose or clumped and falling off due to impact, ensuring uniform density at the bottom of the blank and reducing the risk of cracking during subsequent baking and graphitization processes.

[0025] IV. The equipment and method for forming and processing the graphite inner pot of the rice cooker applies radial pressure to the middle of the blank through the pressure head, while the ring continuously applies radial pressure to the outer side of the blank under the action of the spring force. This can guide the graphite particles to flow towards the pressure equalization area, avoid the formation of thick walls due to local material accumulation or thin walls due to excessive stretching, and control the overall wall thickness difference of the inner pot within a smaller range, thereby improving the consistency of heat conduction. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a partial structural schematic diagram of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of the moving component of the present invention;

[0029] Figure 4 This is a cross-sectional structural schematic diagram of the mobile component of the present invention;

[0030] Figure 5 This is a cross-sectional view of the moving component of the present invention from another side;

[0031] Figure 6 This is a cross-sectional structural schematic diagram of the buffer component of the present invention;

[0032] Figure 7 This is a schematic diagram of the pressure component of the present invention;

[0033] Figure 8 This is a cross-sectional structural schematic diagram of the pressure component of the present invention;

[0034] Figure 9 This is a partial structural schematic diagram of the pressure component of the present invention;

[0035] Figure 10 This is a schematic diagram of the structure of the fixing base of the present invention;

[0036] Figure 11 This is a schematic diagram of the pressure component of the present invention;

[0037] Figure 12 This is a schematic diagram of the molding method of the present invention.

[0038] In the diagram: 1. Platform; 2. Moving component; 21. Square plate; 22. Slider; 23. Support component; 231. Cylinder; 232. Square hole; 233. Square groove; 234. Round rod; 235. Contact block; 236. Compression spring; 24. Mold; 25. Buffer component; 251. Base plate; 252. Spring plate; 253. Base; 254. Protrusion; 255. Side plate; 26. Positioning block; 27. Fixing plate; 28. L-shaped plate; 29. ​​Limiting block; 210. Electric actuator; 3. Guide rod; 4. Top plate; 5. 6. Hydraulic cylinder; 6. Pressure assembly; 61. Fixed seat; 611. Connecting seat; 612. Cylindrical part; 613. Through groove; 614. Inclined groove; 615. Stepped hole; 616. Slot; 62. Pressure component; 621. Pressure head; 622. Intermediate rod; 623. Guide groove; 624. Positioning ring; 625. Locking block; 626. Through hole; 627. Fixed block; 63. Elastic plate; 64. Ring; 65. Return spring; 66. Intermediate ring; 67. Groove; 7. Slide plate; 8. Slide groove; 9. Guide sleeve; 10. Guide rod. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] First embodiment, such as Figures 1 to 5 As shown, the present invention provides a technical solution: a graphite inner pot molding and processing equipment and method for rice cookers, including a platform 1, a sliding groove 8 on the top of the platform 1, a guide rod 3 fixedly connected to the top of the platform 1, a top plate 4 fixedly connected to the top of the guide rod 3, a hydraulic cylinder 5 fixedly connected to the top of the top plate 4, and a sliding plate 7 fixedly connected to the output end of the hydraulic cylinder 5.

[0041] Pressure component 6 is fixedly installed at the bottom center of the slide plate 7;

[0042] Mobile component 2 is installed on top of platform 1;

[0043] There are four guide rods 3, which are evenly distributed at the corner of the top plate 4 near the guide rods 3. The output end of the hydraulic cylinder 5 passes through the top plate 4. The slide plate 7 is slidably connected to the multiple guide rods 3. The moving component 2 is slidably connected to the platform 1 through the slide groove 8. The top of the platform 1 near the guide rods 3 is fixedly connected to the guide sleeve 9, which is sleeved on the outside of the guide rods 3. The bottom of the slide plate 7 is fixedly connected to the guide rod 10, which is four in number and evenly distributed around the pressure component 6.

[0044] The movable component 2 includes a square plate 21, and a support member 23 is fixedly connected to the top center of the square plate 21. A mold 24 is provided inside the support member 23.

[0045] The support member 23 includes a cylindrical body 231, which is fixedly connected to a square plate 21. A square groove 233 is formed on the inner wall side of the cylindrical body 231, and a contact block 235 is provided inside the square groove 233. The contact block 235 is made of rubber, and the top of the contact block 235 is inclined on the side near the cylindrical body 231. When the mold 24 is placed inside the cylindrical body 231, the bottom of the mold 24 contacts the inclined side of the contact block 235 and generates compression. The compression spring 236 is compressed, causing the contact block 235 to move the round rod 234 away from the mold 24. Under the action of the contact blocks, the mold 24 is installed inside the cylinder 231. Through the elastic clamping of multiple contact blocks on the outside, the mold 24 of different sizes can be stably fixed without adjusting the clamping structure, enabling rapid switching of the mold 24 and improving the versatility of the equipment. At the same time, the multiple contact blocks apply elastic force evenly to the outer surface of the mold 24. Even if there are slight dimensional deviations on the outer surface of the mold 24, the elastic clamping can compensate for the gaps through the slight deformation of the contact blocks 235, avoiding local loosening during clamping. Furthermore, the multi-point uniform force application method can improve the fit between the mold 24 and the clamping structure. To ensure the mold 24 remains stable during high-pressure processing and reduce positional displacement caused by vibration, a round rod 234 is slidably connected to the inner wall of the square groove 233. One end of the round rod 234 away from the square groove 233 is fixedly connected to a contact block 235. A compression spring 236 is sleeved on the outer side of the round rod 234. Both ends of the compression spring 236 are fixedly connected to the inner wall of the square groove 233 and the side of the contact block 235 closest to the round rod 234, respectively. Multiple contact blocks 235 are evenly distributed along the outer side of the mold 24, which can absorb the weight of the mold 24 and the pressure generated during processing. The lateral force during molding is distributed to each contact block 235, avoiding tilting or shaking caused by concentrated force on a single point support, improving the support stability of the mold, ensuring that the mold 24 is always in the preset working position during processing, and reducing product size deviation caused by unstable support. There are multiple square grooves 233, which are evenly distributed on the inner wall of the cylinder 231. The round rods 234 are symmetrically arranged at both ends of the contact blocks 235. There are multiple square holes 232 on the outer side of the cylinder 231, which are evenly distributed around the cylinder 231.

[0046] The second embodiment is based on the first embodiment; please refer to [link / reference]. Figure 6 and Figure 7As shown, an electric actuator 210 is installed inside the support member 23. The output end of the electric actuator 210 passes through the cylinder 231 and extends into the interior of the cylinder 231. A buffer assembly 25 is installed inside the support member 23. The buffer assembly 25 is located inside the cylinder 231 and is fixedly connected to the output end of the electric actuator 210. The slider 22 is located inside the slide groove 8. The bottom of the square plate 21 is fixedly connected to the slider 22. The square plate 21 and the platform 1 are slidably connected to the slide groove 8 through the slider 22. A positioning block 26 is slidably connected to the side of the square plate 21. The two ends are provided with arc grooves. The positioning blocks 26 are magnetic, and the two positioning blocks 26 have the same magnetism. The mold 24 is installed inside the cylinder 231. After installation, graphite powder is added to the inside of the mold 24. Then, the square plate 21 slides inside the slide groove 8 through the slider 22, thereby driving the mold 24 to move towards the guide rod 3. The positioning blocks 26 contact and squeeze with the guide rod 3. The positioning blocks 26 move away from the guide rod 3 inside the square plate 21. When the square plate 21 moves to the designated position, the mutual repulsion between the two positioning blocks 26 Under the action of force, the positioning block 26 moves towards the guide rod 3, so that the guide sleeve 9 is located inside the arc groove. The arc groove and the guide sleeve 9 cooperate to quickly guide the mold 24 to the preset position, avoiding repeated adjustments caused by manual misalignment, and then performing the forming process. After the pressing and forming is completed, the square plate 21 slides inside the slide groove 8 through the bottom slider 22, driving the formed blank to move away from the pressure component 6. At this time, the electric push rod 210 works to push the buffer component 25 and the top blank out of the cylinder 231, thereby facilitating material removal. There are two positioning blocks 26. The positioning blocks 26 are symmetrically arranged around the square plate 21. A fixing plate 27 is fixedly connected to the middle of the side of the positioning block 26 near the square plate 21. An L-shaped plate 28 is fixedly connected to the end of the positioning block 26 near the square plate 21. There are two L-shaped plates 28. The two L-shaped plates 28 are symmetrically arranged around the fixing plate 27. A limiting block 29 is fixedly connected to the end of the fixing plate 27 away from the positioning block 26. The limiting block 29 is located at the interval between the two L-shaped plates 28, and the two ends of the limiting block 29 are respectively located at the turning points of the two L-shaped plates 28.

[0047] The buffer assembly 25 includes a base plate 251, which is located inside the mold 24 and is slidably connected to the inner wall of the mold 24. The bottom center of the base plate 251 is fixedly connected to the output end of the electric actuator 210. During processing, the bottom of the base 253 is prone to direct collision with the worktable surface of the equipment or to withstand instantaneous impact forces. The spring plate 252 is compressed under force. At this time, the spring plate 252 can absorb the impact force through its own deformation, reducing the instantaneous impact force and preventing cracks or dents from appearing at the bottom of the mold 24. The long mold 24 has a long service life, and the buffer component 25 can prevent the bottom powder from becoming loose or clumping due to impact, ensuring uniform density at the bottom of the blank and reducing the risk of cracking during subsequent calcination and graphitization. A spring plate 252 is fixedly connected to the side of the base plate 251 away from the electric push rod 210. A base 253 is fixedly connected to the end of the spring plate 252 away from the base plate 251. A protrusion 254 is fixedly connected to the middle of the top of the base 253. A side plate 255 is fixedly connected to the top edge of the base 253.

[0048] The third embodiment is based on embodiments one and two; please refer to [link / reference]. Figures 8 to 12As shown, the pressure assembly 6 includes a fixed base 61, which is fixedly connected to the bottom center of the slide plate 7. A pressure component 62 is installed on the outer bottom of the fixed base 61, and an intermediate ring 66 is fixedly connected to the outer side of the pressure component 62. A return spring 65 is sleeved on the outer side of the pressure component 62. When the mold 24 moves to the designated position, the hydraulic cylinder 5 drives the slide plate 7 to move downward on the guide rod 3, so that the connecting seat 611 at the bottom of the slide plate 7 drives the pressure head 621 to move downward, so that the pressure head 621 and the ring 64 come into contact with the material inside the mold 24 and generate pressure. During extrusion, due to the high brittleness of the graphite blank, cracks easily form at the edges due to concentrated instantaneous stress. In the initial stage of stamping, the ring 64 contacts the blank edge before the pressure head 621. At this point, the elastic deformation energy of the return spring 65 converts the impact force into progressive pressure, causing the blank edge to deform slowly under pre-tension, preventing breakage due to excessive local stress. Furthermore, as the pressure head 621 continues to move downwards, it applies radial pressure to the center of the blank, while the ring 64, under the action of the spring force, continuously applies radial pressure to the outer side of the blank. The graphite particles are guided to flow towards the pressure equilibrium area, avoiding localized thick walls due to material accumulation or thin walls due to excessive stretching. This keeps the overall wall thickness difference of the inner liner within a smaller range, improving thermal conductivity consistency. A ring 64 is slidably connected to the outer side of the pressure component 62. A rod is provided on the side of the ring 64 near the pressure component 62. The two ends of the return spring 65 are fixedly connected to the intermediate ring 66 and the ring 64, respectively. An elastic plate 63 is provided inside the pressure component 62. The two ends of the elastic plate 63 are fixedly connected to the fixed seat 61 and the pressure component 62, respectively. A groove 67 is provided in the middle of the bottom of the die. When the pressure head 621 is pressed down, the protrusion 254 at the bottom of the die 24 will be embedded in the groove 67 of the pressure head 621 to form a fitting extrusion structure. This fit can guide the material in the middle of the blank to the surrounding area, avoiding the formation of wrinkles or excessive accumulation of material in the middle due to lack of flow during traditional flat stamping. Especially for the inner liner where a heating plate contact area needs to be reserved at the bottom, the protrusion can force the material to be supplemented to the side wall, making the thickness transition between the bottom and the side wall more uniform and reducing the subsequent cutting amount. The groove 67 and the protrusion 254 are compatible.

[0049] The fixed base 61 includes a connecting base 611. A cylinder 612 is fixedly connected to the middle of the end of the connecting base 611 away from the slide plate 7. A through groove 613 is provided on the outer side of the cylinder 612. An inclined groove 614 is provided at one end of the through groove 613. The inclined groove 614 and the through groove 613 are arranged perpendicularly. A stepped hole 615 is provided at the middle of the end of the cylinder 612 away from the connecting base 611. A slot 616 is provided on the top outer side of the stepped hole 615.

[0050] The pressure component 62 includes a pressure head 621, which is sleeved on the outside of a cylinder 612. A central rod 622 is fixedly connected to the middle of the bottom of the inner wall of the pressure head 621. A guide groove 623 is formed on the axial outer side of the central rod 622. A positioning ring 624 is sleeved on the outer side of the central rod 622. The central rod 622 is slidably connected to the positioning ring 624 through the guide groove 623. A locking block 625 is fixedly connected to the outer side of the positioning ring 624. The locking block 625 is L-shaped and elastic. The pressure head 621 is installed on the cylinder 612 of the connecting seat 611, so that the fixing block 627 inside the pressure head 621 is located inside the through groove 613, and the central rod 622 is located inside the stepped hole 615. Then, when the fixing block 627 moves to the bottom of the through groove 613, by rotating the pressure head 621, the pressure head 621 drives the fixing block 627 to move from the through groove 613 to the inclined groove 614. Inside the slot, the locking block 625 contacts and compresses the inner wall of the stepped hole 615. The locking block 625 contracts under force and is located inside the slot. The positioning ring 624 rotates with the pressure head 621 via the intermediate rod 622, so that the locking block 625 is located inside the slot 616. Through the locking engagement, the installation of the pressure head 621 can be completed quickly, improving work efficiency and minimizing equipment downtime for adjustment. The positioning ring 624 has a slot near the edge of the locking block 625, and the locking block 625 is located inside the slot. The locking block 625 is L-shaped, with the end of the locking block 625 away from the positioning ring 624 located inside the slot 616. The intermediate ring 66 has a through hole 626 on the inner side near the pressure head 621, and the rod is located inside the through hole 626. The inner wall of the pressure head 621 is fixedly connected to a fixing block 627, which is located inside the through groove 613 and the inclined groove 614.

[0051] A method for molding and processing a graphite inner pot for a rice cooker includes the following steps:

[0052] Step 1: Place the mold. Place the mold 24 inside the cylinder 231. The bottom of the mold 24 contacts the inclined edge of the contact block 235 and generates compression. Under the elastic force of the compression spring 236, the mold 24 is installed inside the cylinder 231.

[0053] Step 2: Install the pressure head. Install the pressure head 621 on the cylinder 612 of the connecting seat 611. After sliding, rotate the pressure head 621 so that the pressure head 621 drives the fixing block 627 to move from the inside of the through groove 613 to the inside of the inclined groove 614. Through the snap-fit ​​engagement, the installation of the pressure head 621 can be completed quickly.

[0054] Step 3: Moving the feeder, graphite powder is placed inside the mold 24. The square plate 21 slides inside the slide groove 8 via the slider 22. When the square plate 21 moves to the designated position, the guide sleeve 9 is located inside the arc groove under the action of the mutual repulsion between the two positioning blocks 26. The arc groove and the guide sleeve 9 cooperate to quickly guide the mold 24 to the preset position.

[0055] Step 4: Pressure forming. The hydraulic cylinder 5 drives the slide plate 7 to move downward on the guide rod 3, so that the connecting seat 611 at the bottom of the slide plate 7 drives the pressure head 621 to move downward, so that the pressure head 621 and the ring 64 come into contact with the material inside the mold 24 and generate extrusion, so that the graphite powder inside the mold 24 is pressed into shape.

[0056] Step 5: Demolding and material removal. The hydraulic cylinder 5 drives the pressure head 621 and the ring 624 to reset. The square plate 21 slides inside the slide groove 8 through the bottom slider 22, which drives the formed blank to move away from the pressure component 6. At this time, the electric push rod 210 works to push the buffer component 25 and the top blank out of the cylinder 231, so as to facilitate material removal.

[0057] In use, the pressure head 621 is installed on the cylinder 612 of the connecting seat 611, so that the fixing block 627 inside the pressure head 621 is located inside the through groove 613, and the intermediate rod 622 is located inside the stepped hole 615. Then, when the fixing block 627 moves to the bottom of the through groove 613, the pressure head 621 is rotated, so that the pressure head 621 drives the fixing block 627 to move from inside the through groove 613 to inside the inclined groove 614. At the same time, the locking block 625 contacts the inner wall of the stepped hole 615 and generates pressure. The locking block 625 is compressed under force and is located inside the groove. The positioning ring 624 rotates with the pressure head 621 through the intermediate rod 622, so that the locking block 625 is located inside the locking groove 616. Through the locking engagement, the installation of the pressure head 621 can be completed quickly.

[0058] The mold 24 is placed inside the cylinder 231. The bottom of the mold 24 contacts the inclined edge of the contact block 235 and is squeezed. The compression spring 236 is compressed, causing the contact block 235 to be driven by the round rod 234 to move away from the mold 24. Under the elastic force of the compression spring 236, the mold 24 is installed inside the cylinder 231.

[0059] After installation, graphite powder is added to the inside of the mold 24. Then, the square plate 21 slides inside the slide groove 8 via the slider 22, thereby driving the mold 24 to move closer to the guide rod 3. The positioning block 26 contacts the guide rod 3 and generates compression. The positioning block 26 moves inside the square plate 21 away from the guide rod 3. When the square plate 21 moves to the designated position, under the action of the mutual repulsion between the two positioning blocks 26, the positioning block 26 moves closer to the guide rod 3, so that the guide sleeve 9 is located inside the arc groove. The arc groove and the guide sleeve 9 cooperate to quickly guide the mold 24 to the preset position.

[0060] When mold 24 moves to the designated position, hydraulic cylinder 5 operates, driving slide plate 7 to move downward on guide rod 3. This causes connecting seat 611 at the bottom of slide plate 7 to drive press head 621 downward, allowing press head 621 and ring 64 to contact the material inside mold 24 and generate extrusion. In the initial stage of stamping, ring 64 will contact the edge of the blank before press head 621. At this time, the elastic deformation energy of return spring 65 is used to convert the impact force into progressive pressure, so that the edge of the blank deforms slowly under pre-tightening state, avoiding cracking caused by excessive local stress. As press head 621 continues to move downward, press head 621 applies radial pressure to the middle of the blank, while ring 64 continuously applies radial pressure to the outside of the blank under the action of spring force, which can guide graphite particles to flow towards the pressure equilibrium area.

[0061] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0062] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A processing equipment for forming graphite inner pots for rice cookers, characterized in that, include: Platform (1), the top of the platform (1) is provided with a sliding groove (8), the top of the platform (1) is fixedly connected with a guide rod (3), the top of the guide rod (3) is fixedly connected with a top plate (4), the top of the top plate (4) is fixedly connected with a hydraulic cylinder (5), and the output end of the hydraulic cylinder (5) is fixedly connected with a sliding plate (7). Pressure assembly (6), which is fixedly installed at the bottom center of the slide plate (7); The moving component (2) is installed on the top of the platform (1). The moving component (2) is slidably connected to the platform (1) through the slide groove (8). The top of the platform (1) near the guide rod (3) is fixedly connected to the guide sleeve (9), which is sleeved on the outside of the guide rod (3). The moving component (2) includes a square plate (21), a support member (23) is fixedly connected to the top center of the square plate (21), a buffer component (25) is provided inside the support member (23), a mold (24) is provided inside the support member (23), a positioning block (26) is slidably connected to the side of the square plate (21), the two ends of the positioning block (26) are provided with arc grooves, the positioning block (26) is magnetic, the two positioning blocks (26) have the same magnetism, the arc groove cooperates with the guide sleeve (9), there are two positioning blocks (26), the two positioning blocks (26) are symmetrically arranged with the square plate (21) as the center. In this arrangement, a fixing plate (27) is fixedly connected to the middle of one of the positioning blocks (26) near the square plate (21), and an L-shaped plate (28) is fixedly connected to the end of the other positioning block (26) near the square plate (21). There are two L-shaped plates (28), which are symmetrically arranged with the fixing plate (27) as the center. A limiting block (29) is fixedly connected to the end of the fixing plate (27) away from the positioning block (26). The limiting block (29) is located at the interval between the two L-shaped plates (28), and the two ends of the limiting block (29) are respectively located at the turning points of the two L-shaped plates (28). The support member (23) includes a cylindrical body (231), which is fixedly connected to a square plate (21). A square groove (233) is provided on the inner side of the cylindrical body (231). A contact block (235) is provided inside the square groove (233). A round rod (234) is slidably connected to the inner wall of the square groove (233). One end of the round rod (234) away from the square groove (233) is fixedly connected to the contact block (235). A compression spring (236) is sleeved on the outer side of the round rod (234). The two ends of the compression spring (236) are fixedly connected to the inner wall of the square groove (233) and the side of the contact block (235) near the round rod (234), respectively. There are multiple contact blocks (235). The buffer assembly (25) includes a base plate (251) located inside the mold (24). The base plate (251) is slidably connected to the inner wall of the mold (24). The bottom middle of the base plate (251) is fixedly connected to the output end of the electric push rod (210). A spring plate (252) is fixedly connected to the side of the base plate (251) away from the electric push rod (210). A base (253) is fixedly connected to the end of the spring plate (252) away from the base plate (251). A protrusion (254) is fixedly connected to the middle of the top of the base (253). A side plate (255) is fixedly connected to the top edge of the base (253).

2. The rice cooker graphite inner pot forming and processing equipment according to claim 1, characterized in that: There are four guide rods (3), which are evenly distributed at the corner of the top plate (4) near the guide rods (3). The output end of the hydraulic cylinder (5) passes through the top plate (4). The slide plate (7) is slidably connected to the multiple guide rods (3). The bottom of the slide plate (7) is fixedly connected to a guide rod (10). There are four guide rods (10), which are evenly distributed around the pressure component (6).

3. The rice cooker graphite inner pot forming and processing equipment according to claim 2, characterized in that: An electric actuator (210) is provided inside the support member (23). The output end of the electric actuator (210) passes through the cylinder (231) and extends into the cylinder (231). The buffer assembly (25) is located inside the cylinder (231) and is fixedly connected to the output end of the electric actuator (210). A slider (22) is fixedly connected to the bottom of the square plate (21). The slider (22) is located inside the slide groove (8). The square plate (21) and the platform (1) are slidably connected through the slider (22) and the slide groove (8).

4. The rice cooker graphite inner pot forming and processing equipment according to claim 3, characterized in that: There are multiple square grooves (233), which are evenly distributed on the inner wall of the cylinder (231). The round rods (234) are symmetrically arranged at both ends of the contact block (235). A square hole (232) is opened on the outer side of the cylinder (231). There are multiple square holes (232), which are evenly distributed around the cylinder (231).

5. The rice cooker graphite inner pot forming and processing equipment according to claim 4, characterized in that: The pressure assembly (6) includes a fixed base (61), which is fixedly connected to the bottom middle of the slide plate (7). A pressure member (62) is installed on the outer bottom of the fixed base (61). An intermediate ring (66) is fixedly connected to the outer side of the pressure member (62). A return spring (65) is sleeved on the outer side of the pressure member (62). A circular ring (64) is slidably connected to the outer side of the pressure member (62). A rod is provided on the side of the circular ring (64) close to the pressure member (62). The two ends of the return spring (65) are fixedly connected to the intermediate ring (66) and the circular ring (64) respectively. An elastic plate (63) is provided inside the pressure member (62). The two ends of the elastic plate (63) are fixedly connected to the fixed base (61) and the pressure member (62) respectively. A groove (67) is provided at the bottom middle of the pressure member (62). The groove (67) is adapted to the protrusion (254).

6. The rice cooker graphite inner pot forming and processing equipment according to claim 5, characterized in that: The fixed base (61) includes a connecting base (611). A cylinder (612) is fixedly connected to the middle of the end of the connecting base (611) away from the slide plate (7). A through groove (613) is provided on the outer side of the cylinder (612). An inclined groove (614) is provided at one end of the through groove (613). The inclined groove (614) and the through groove (613) are arranged perpendicularly. A stepped hole (615) is provided at the middle of the end of the cylinder (612) away from the connecting base (611). A slot (616) is provided on the top outer side of the stepped hole (615).

7. The rice cooker graphite inner pot forming and processing equipment according to claim 6, characterized in that: The pressure component (62) includes a pressure head (621), which is sleeved on the outside of the cylinder (612). A middle rod (622) is fixedly connected to the middle of the bottom of the inner wall of the pressure head (621). A guide groove (623) is provided on the axial outer side of the middle rod (622). A positioning ring (624) is sleeved on the outer side of the middle rod (622). The middle rod (622) is slidably connected to the positioning ring (624) through the guide groove (623). A locking block (625) is fixedly connected to the outer side of the positioning ring (624). 4) A slot is provided near the edge of the card block (625). The card block (625) is located inside the slot. The card block (625) is L-shaped. The end of the card block (625) away from the positioning ring (624) is located inside the card groove (616). The middle ring (66) has a through hole (626) on the inner side near the pressure head (621). The rod is located inside the through hole (626). A fixing block (627) is fixedly connected to the inner wall of the pressure head (621). The fixing block (627) is located inside the through groove (613) and the inclined groove (614).

8. A method for forming a graphite inner pot for a rice cooker, using the graphite inner pot forming equipment described in claim 7, characterized in that... Includes the following steps: Step 1: Place the mold (24) inside the cylinder (231). The bottom of the mold (24) contacts the inclined edge of the contact block (235) and generates compression. Under the elastic force of the compression spring (236), the mold (24) is installed inside the cylinder (231). Step 2: Install the pressure head. Install the pressure head (621) on the cylinder (612) of the connecting seat (611). After sliding, rotate the pressure head (621) so that the pressure head (621) drives the fixing block (627) to move from the inside of the through groove (613) to the inside of the inclined groove (614). Through the snap-fit, the installation of the pressure head (621) can be completed quickly. Step 3: Moving the material feeder, placing graphite powder inside the mold (24), the square plate (21) slides inside the slide groove (8) via the slider (22). When the square plate (21) moves to the designated position, under the action of the mutual repulsion between the two positioning blocks (26), the guide sleeve (9) is located inside the arc groove. The arc groove and the guide sleeve (9) work together to quickly guide the mold (24) to the preset position. Step 4: Pressure forming. The hydraulic cylinder (5) drives the slide plate (7) to move downward on the guide rod (3), so that the connecting seat (611) at the bottom of the slide plate (7) drives the pressure head (621) to move downward, so that the pressure head (621) and the ring (64) come into contact with the material inside the mold (24) and generate extrusion, so that the graphite powder inside the mold (24) is pressed into shape. Step 5: Demolding and material removal. The hydraulic cylinder (5) drives the pressure head (621) and the ring (64) to reset. The square plate (21) slides inside the slide groove (8) through the bottom slider (22), which drives the formed blank to move away from the pressure component (6). At this time, the electric push rod (210) works to push the buffer component (25) and the top blank out of the cylinder (231), thus facilitating material removal.

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