Equipment and method for forming and processing graphite inner container of electric cooker

Abstract

The invention discloses electric cooker graphite inner container forming processing equipment and method, and relates to the technical field of graphite inner container forming. Comprising a cylinder, the cylinder is fixedly connected with a square plate, a square groove is formed in the side face of the inner wall of the cylinder, a contact block is arranged in the square groove and made of rubber, a round rod is slidably connected to the inner wall of the square groove, the end, away from the square groove, of the round rod is fixedly connected with the contact block, and the round rod is sleeved with a compression spring; the two ends of the compression spring are fixedly connected with the inner wall of the square groove and the side, close to the round rod, of each contact block correspondingly. According to the forming machining equipment and method for the graphite inner container of the electric cooker, the multiple contact blocks are evenly distributed along the outer side of the mold, the weight of the mold and pressure generated during machining such as lateral force during compression molding can be dispersed to each contact block, inclination or shaking caused by stress concentration of single-point supporting is avoided, and the supporting stability of the mold is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of graphite liner forming, in particular to a graphite liner forming processing equipment and method for electric rice cookers. BACKGROUND

[0002] Graphite is an allotrope of carbon, which has the characteristics of stable chemical properties and corrosion resistance. At the same time, it also has excellent heat conduction, electrical conductivity and magnetic conductivity, and does not contain heavy metals and harmful organic components. In addition, graphite can generate far-infrared negative oxygen ions when heated, which can penetrate the food and help to better release the nutritional ingredients of the food, thereby improving the taste and internal quality of the food, and is therefore very suitable for making electric rice cooker liners. Moreover, the electric rice cooker liners used in daily life are mainly made of metal materials such as aluminum, iron and stainless steel, which are prone to sticking to the pot when heating and cooking food. Manufacturers usually spray a non-stick coating on the surface of the metal liner, but after a long period of use, the surface coating is prone to peeling and discoloration, affecting the service life of the liner and possibly having adverse effects on human health.

[0003] The mold in the existing equipment is only fixed on the upper and lower end faces, and under the action of high pressure of the hydraulic machine, the mold is prone to bulging deformation due to radial stress, which causes the size of the cavity to deviate from the design value, and the forming precision of the liner decreases. Moreover, the traditional mold needs to be replaced as a whole when changing the type, which is time-consuming and costly. SUMMARY

[0004] To achieve the above purpose, the present application realizes the following technical scheme: a graphite liner forming processing equipment and method for electric rice cookers, including a platform, a sliding groove is formed in the top of the platform, a guide rod is fixedly connected to the top of the platform, a top plate is fixedly connected to the top of the guide rod, a hydraulic cylinder is fixedly connected to the top of the top plate, and a sliding plate is fixedly connected to the output end of the hydraulic cylinder; a pressure assembly is fixedly installed at the middle of the bottom of the sliding plate; a moving assembly is installed on the top of the platform; the number of guide rods is four, the four guide rods are evenly distributed at the corners of the side of the top plate close to the guide rods, the output end of the hydraulic cylinder penetrates the top plate, the sliding plate is slidingly connected with the plurality of guide rods, the moving assembly is slidingly connected with the platform through the sliding groove, a guide sleeve is fixedly connected to the top of the platform close to the guide rods, the guide sleeve is sleeved on the outside of the guide rod, a guide rod is fixedly connected to the bottom of the sliding plate, and the number of guide rods is four, which are evenly distributed around the pressure assembly; The moving assembly includes a square plate, a support is fixedly connected to the middle of the top of the square plate, and a mold is arranged in the support. 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 edge 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 with 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, 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, 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.

[0005] 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.

[0006] 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 of the base is fixedly connected with a convex block, and the top edge of the base is fixedly connected with a side plate.

[0007] 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 easy to crack due to instantaneous stress concentration, the circular ring will contact the blank edge 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 in a smaller range, improve the thermal conductivity consistency, 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 heating disc contact area 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.

[0008] 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.

[0009] Preferably, the pressure piece comprises a pressure head, the pressure head is sleeved on the outer side 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 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 inner side of the inclined groove, at the same time, the clamping block is in contact 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, through the clamping cooperation, the installation of the pressure head can be quickly completed, the working efficiency is improved, the equipment downtime adjustment time can be 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.

[0010] A graphite inner liner forming processing method of an electric rice cooker, comprising the following steps: Step one, place the mold, place the mold in the inner side of the cylinder, the bottom of the mold is in contact 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 inner side of the cylinder; 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 inner side of the inclined groove in the through groove, through the clamping cooperation, the installation of the pressure head can be quickly completed; Step three, move the feeding, place the graphite powder in the inner side of the mold, the square plate slides in the inner side of the sliding groove through the sliding block, when the square plate moves to the specified position, under the mutual repulsive force 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; 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 are in contact with the material in the inner side of the mold and are extruded, so that the graphite powder in the inner side of the mold is pressed and formed; Step five, demolding and taking out the material, the hydraulic cylinder drives the pressure head and the circular ring to reset, the square plate slides in the inner side of the sliding groove through the sliding block at the bottom, drives 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 cylinder, so as to facilitate taking out the material.

[0011] The application provides an electric rice cooker graphite inner container forming processing equipment and method. I. The electric rice cooker graphite inner container forming processing equipment and method, through the elastic clamping of multiple contact blocks on the outside, can realize stable fixing without adjusting the clamping structure for different size molds, can realize quick switching of the mold, and improves the universality of the equipment. Meanwhile, the multiple contact blocks uniformly distribute the elastic force on the outer side of the mold, so that 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 blocks, avoiding local loosening during clamping.

[0012] II. The electric rice cooker graphite inner container forming processing equipment and method, through the uniform distribution of multiple contact blocks along the outer side of the mold, can disperse the weight of the mold and the pressure generated during processing, such as the lateral force during mold pressing, to each contact block, avoiding the tilting or shaking of single-point support due to force concentration, improving the support stability of the mold, ensuring that the mold is always in the preset working position during processing, and reducing the product size deviation caused by unstable support.

[0013] III. The electric rice cooker graphite inner container forming processing equipment and method, through the elastic plate, can absorb the impact force through its own deformation, reduce the instantaneous impact force, avoid cracks and depressions on the bottom of the mold, prolong the overall service life of the mold, and the buffer assembly can avoid local loosening or clumping of the bottom powder due to impact, ensure the uniform density of the blank body bottom, and reduce the cracking risk during subsequent baking and graphitization.

[0014] IV. The electric rice cooker graphite inner container forming processing equipment and method, through the pressure head applying radial pressure to the middle of the blank, and the circular ring continuously applying radial pressure to the outside of the blank under the action of the spring force, can guide the graphite particles to flow to the pressure balanced area, avoid local thick walls due to material accumulation or thin walls due to excessive stretching, control the overall wall thickness difference of the inner container within a smaller range, and improve the consistency of heat conduction. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the whole application; Figure 2 It is a structural schematic diagram of the local application; Figure 3 It is a structural schematic diagram of the moving assembly of the application; Figure 4 It is a structural schematic diagram of the moving assembly of the application; Figure 5 It is a structural schematic diagram of the moving assembly of the application; Figure 6 It is a structural schematic diagram of the buffer assembly of the application; Figure 7It is a structural schematic diagram of the pressure assembly of the present invention; Figure 8 It is a schematic structural diagram of a cross-section of the pressure assembly of the present invention; Figure 9 It is a schematic structural diagram of a part of the pressure assembly of the present invention; Figure 10 It is a structural schematic diagram of the fixing seat of the present invention; Figure 11 It is a structural schematic diagram of the pressure piece of the present invention; Figure 12 Schematic diagram of the process of the molding method of the present invention.

[0016] In the figure: 1. platform; 2. moving assembly; 21. square plate; 22. slider; 23. support member; 231. cylinder; 232. square hole; 233. square groove; 234. round rod; 235. contact block; 236. compression spring; 24. mold; 25. buffer assembly; 251. bottom plate; 252. spring plate; 253. base; 254. protrusion; 255. side plate; 26. positioning block; 27. fixing plate; 28. L-shaped plate; 29. ​​limit block; 210. electric push rod; 3. guide rod; 4. top plate; 5. Hydraulic cylinder; 6. Pressure assembly; 61. Fixed seat; 611. Connecting seat; 612. Cylinder; 613. Through groove; 614. Bevel groove; 615. Stepped hole; 616. Clamping groove; 62. Pressure piece; 621. Pressure head; 622. Intermediate rod; 623. Guide groove; 624. Positioning ring; 625. Clamping 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 DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] The first embodiment, as Figures 1 to 5 As shown, the present invention provides a technical solution: a graphite inner pot forming processing device and method for an electric rice cooker, comprising a platform 1, a slide groove 8 is provided on the top of the platform 1, a guide rod 3 is fixedly connected to the top of the platform 1, a top plate 4 is fixedly connected to the top of the guide rod 3, a hydraulic cylinder 5 is fixedly connected to the top of the top plate 4, and a slide plate 7 is fixedly connected to the output end of the hydraulic cylinder 5; The pressure assembly 6 is fixedly mounted at the bottom middle of the slide 7; The moving assembly 2 is installed on the top of the platform 1. The number of guide rods 3 is four, and the four guide rods 3 are uniformly distributed at the corners of the top plate 4 near the side of the guide rods 3. The output end of the hydraulic cylinder 5 penetrates the top plate 4. The sliding plate 7 is in sliding connection with the plurality of guide rods 3. The moving assembly 2 is in sliding connection with the platform 1 through the sliding groove 8. The top of the platform 1 near the guide rods 3 is fixedly connected with the guide sleeve 9, which is sleeved on the outside of the guide rod 3. The bottom of the sliding plate 7 is fixedly connected with the guide rod 10. The number of guide rods 10 is four, and the four guide rods 10 are uniformly distributed around the pressure assembly 6. The moving assembly 2 comprises a square plate 21. The top of the square plate 21 is fixedly connected with a support 23. The inside of the support 23 is provided with a mold 24. The supporting piece 23 comprises a cylinder body 231 fixedly connected with the square plate 21, a square groove 233 is formed on the inner wall side of the cylinder body 231, a contact block 235 is arranged in the square groove 233, the contact block 235 is made of rubber, the top of the contact block 235 is obliquely arranged on one side close to the cylinder body 231, the mold 24 is placed in the cylinder body 231, the bottom of the mold 24 is in contact with the inclined side of the contact block 235 and is extruded, the compression spring 236 is compressed under the force, so that the contact block 235 is driven to move the round rod 234 away from the mold 24, under the elastic force of the compression spring 236, the mold 24 is installed in the cylinder body 231, the elastic clamping of the plurality of contact blocks on the outside can realize stable fixing without adjusting the clamping structure for different sizes of the mold 24, the quick switching of the mold 24 can improve the versatility of the equipment, at the same time, the plurality of contact blocks uniformly distribute the elastic force on the outer side of the mold 24, even if there is a slight size deviation on the outer side of the mold 24, the elastic clamping can compensate the gap through the slight deformation of the contact block 235, the local looseness in the clamping process is avoided, and the multi-point uniform stress mode can improve the adhesion of the mold 24 and the clamping structure, so that the mold 24 is always in a stable state during high-pressure processing, the position deviation caused by vibration is reduced, the 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 with the contact block 235, the compression spring 236 is sleeved outside the round rod 234, the two ends of the compression spring 236 are respectively fixedly connected with the inner wall of the square groove 233 and the side of the contact block 235 close to the round rod 234, the number of the contact blocks 235 is plural, the plurality of contact blocks 235 are uniformly distributed along the outer side of the mold 24, the weight of the mold 24 and the pressure generated during processing, such as the lateral force during mold pressing, can be dispersed to each contact block 235, the inclination or shaking caused by stress concentration of single-point support is avoided, the support stability of the mold is improved, the mold 24 is always in the preset working position during processing, the product size deviation caused by unstable support is reduced, the number of the square grooves 233 is plural, the plurality of square grooves 233 are uniformly distributed on the inner wall of the cylinder body 231, the round rods 234 are symmetrically arranged at both ends of the contact block 235, the square holes 232 are formed on the outside of the cylinder body 231, the number of the square holes 232 is plural, and the plurality of square holes 232 are uniformly distributed around the cylinder body 231.

[0019] The second embodiment is based on the first embodiment, please refer to Figure 6 and Figure 7As shown, the inside of the support 23 is provided with an electric push rod 210, the output end of the electric push rod 210 penetrates the barrel 231 and extends to the inside of the barrel 231, the inside of the support 23 is provided with a buffer assembly 25, the buffer assembly 25 is located in the inside of the barrel 231, and the buffer assembly 25 is fixedly connected with the output end of the electric push rod 210, the slider 22 is located in the inside of the sliding groove 8, the bottom of the square plate 21 is fixedly connected with the slider 22, the square plate 21 is slidably connected with the platform 1 through the slider 22 and the sliding groove 8, the side edge of the square plate 21 is slidably connected with a positioning block 26, arc grooves are formed at both ends of the positioning block 26, the positioning block 26 has magnetism, the magnetism between the two positioning blocks 26 is the same, the mold 24 is installed in the inside of the barrel 231, after installation, graphite powder is added into the inside of the mold 24, then the square plate 21 is slid in the inside of the sliding groove 8 through the slider 22, so as to drive the mold 24 to move towards the guide rod 3, the positioning block 26 contacts and is pressed with the guide rod 3, the positioning block 26 moves in the inside of the square plate 21 away from the guide rod 3, when the square plate 21 moves to a specified position, under the action of the mutual repulsion between the two positioning blocks 26, the positioning block 26 moves towards the guide rod 3, so that the guide sleeve 9 is located in the arc groove, the arc groove cooperates with the guide sleeve 9 to quickly guide the mold 24 to the preset position, so as to avoid repeated adjustment caused by inaccurate manual alignment, and then forming processing is carried out, after the compression molding is completed, the square plate 21 is slid in the inside of the sliding groove 8 through the slider 22 at the bottom, so as to drive the formed blank to move away from the pressure assembly 6, at this time the electric push rod 210 works, the buffer assembly 25 and the top blank are ejected from the barrel 231, so as to facilitate material taking, the number of the positioning blocks 26 is two, the two positioning blocks 26 are symmetrically arranged with the square plate 21 as the center, the positioning block 26 close to the middle of one side of the square plate 21 is fixedly connected with a fixed plate 27, the positioning block 26 close to the end of one side of the square plate 21 is fixedly connected with an L-shaped plate 28, the number of the L-shaped plates 28 is two, the two L-shaped plates 28 are symmetrically arranged with the fixed plate 27 as the center, the end of the fixed plate 27 away from the positioning block 26 is fixedly connected with a limiting block 29, 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 located at the turning points of the two L-shaped plates 28 respectively.

[0020] The buffer assembly 25 comprises a bottom plate 251 located inside the mold 24, the bottom plate 251 is in sliding connection with the inner wall of the mold 24, the bottom plate 251 is fixedly connected with the output end of the electric push rod 210 at the middle of the bottom, in the processing process, the bottom of the base 253 is easy to collide with the workbench directly or bear the instantaneous impact force, the elastic plate 252 is compressed under stress, at this time, the elastic plate 252 can absorb the impact force through its own deformation, can reduce the degree of instantaneous impact, avoid cracks and depressions on the bottom of the mold 24, prolong the service life of the whole mold 24, and the buffer assembly 25 can avoid local loosening or blockage of the bottom powder due to impact, ensure the uniform density of the bottom of the blank, reduce the cracking risk in the subsequent roasting and graphitization process, the side away from the electric push rod 210 of the bottom plate 251 is fixedly connected with the elastic plate 252, the end away from the bottom plate 251 of the elastic plate 252 is fixedly connected with the base 253, the middle of the top of the base 253 is fixedly connected with the protrusion 254, and the edge of the top of the base 253 is fixedly connected with the side plate 255.

[0021] In the third embodiment, on the basis of the first and second embodiments, please refer to Figures 8 to 12As shown, the pressure assembly 6 comprises a fixed seat 61 fixedly connected with the middle of the bottom of the sliding plate 7, the outer bottom of the fixed seat 61 is provided with a pressure piece 62, the outer side of the pressure piece 62 is fixedly connected with an intermediate ring 66, the outer side of the pressure piece 62 is sleeved with a reset spring 65, the mold 24 moves to the designated position, the hydraulic cylinder 5 drives the sliding plate 7 to move downward on the guide rod 3, so that the connecting seat 611 at the bottom of the sliding plate 7 drives the pressure head 621 to move downward, so that the pressure head 621 and the circular ring 64 contact and extrude the material in the inside of the mold 24, because the graphite blank has high brittleness, the edge of the blank is easy to crack due to instantaneous stress concentration, the circular ring 64 will contact the blank edge earlier than the pressure head 621 at the initial stage of stamping, at this time, the elastic deformation energy of the reset spring 65 can convert the impact force into progressive pressure, so that the blank edge slowly deforms in the pre-tightening state, avoiding the collapse caused by excessive local stress, and as the pressure head 621 continues to move downward, the pressure head 621 applies radial pressure to the middle of the blank, and at the same time, the circular ring 64 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 balanced area, avoid the formation of thick wall due to material accumulation or thin wall due to excessive stretching in the local, control the overall wall thickness difference of the liner in a smaller range, improve the heat conduction consistency, the outer side of the pressure piece 62 is slidably connected with the circular ring 64, the side close to the pressure piece 62 of the circular ring 64 is provided with a rod, the two ends of the reset spring 65 are fixedly connected with the intermediate ring 66 and the circular ring 64 respectively, the inside of the pressure piece 62 is provided with an elastic plate 63, the two ends of the elastic plate 63 are fixedly connected with the fixed seat 61 and the pressure piece 62 respectively, the middle of the bottom of the pressure piece 62 is provided with a groove 67, when the pressure head 621 is pressed down, the protrusion 254 at the bottom of the mold 24 will be embedded in the groove 67 of the pressure head 621, forming an embedded extrusion structure, this cooperation can direct the material in the middle of the blank to the periphery, avoiding the formation of wrinkles or excessive thickness accumulation of the middle material due to no place to flow during traditional plane stamping, especially for the liner which needs to reserve a heating disc contact area at the bottom, the protrusion can forcibly supplement the material to the side wall, making the thickness transition of the bottom and the side wall more uniform, reducing the subsequent cutting amount, the groove 67 is matched with the protrusion 254.

[0022] The fixed seat 61 comprises a connecting seat 611, an intermediate position of an end of the connecting seat 611 away from the sliding plate 7 is fixedly connected with a cylinder 612, an outer side of the cylinder 612 is provided with a through groove 613, one end of the through groove 613 is provided with an inclined groove 614, the inclined groove 614 and the through groove 613 are vertically arranged, an intermediate position of an end of the cylinder 612 away from the connecting seat 611 is provided with a stepped hole 615, an outer side of the top of the stepped hole 615 is provided with a clamping groove 616.

[0023] The pressure piece 62 comprises a pressure head 621 sleeved on the outside of the cylinder 612, an intermediate rod 622 fixedly connected to the middle of the inner wall bottom of the pressure head 621, a guide groove 623 opened on the axial outside of the intermediate rod 622, a positioning ring 624 sleeved on the outside of the intermediate rod 622 and slidably connected to the intermediate rod 622 through the guide groove 623, a clamping block 625 fixedly connected to the outside of the positioning ring 624, the clamping block 625 being L-shaped and having elasticity, the pressure head 621 being installed on the cylinder 612 of the connecting seat 611 so that the fixed block 627 in the pressure head 621 is located in the through groove 613 and the intermediate rod 622 is located in the stepped hole 615, then when the fixed block 627 moves to the bottom of the through groove 613, the pressure head 621 is rotated to drive the fixed block 627 to move to the inside of the inclined groove 614, the clamping block 625 contacts and is pressed by the inner wall of the stepped hole 615, the clamping block 625 is contracted under the force, the clamping block 625 is located in the notch, the positioning ring 624 rotates with the pressure head 621 through the intermediate rod 622, the clamping block 625 is located in the clamping groove 616, the installation of the pressure head 621 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 624 close to the clamping block 625 is provided with a notch, the clamping block 625 is located in the notch, the clamping block 625 is L-shaped, the end of the clamping block 625 away from the positioning ring 624 is located in the clamping groove 616, the through hole 626 is opened on the inner side of the intermediate ring 66 close to the pressure head 621, the rod is located in the through hole 626, the fixed block 627 is fixedly connected to the inner wall of the pressure head 621 and located in the through groove 613 and the inclined groove 614.

[0024] A forming processing method of a graphite inner container of an electric rice cooker, comprising the following steps: Step one, place the mold, place the mold 24 in the inside of the cylinder body 231, the bottom of the mold 24 contacts and is pressed by the inclined edge of the contact block 235, the mold 24 is installed in the inside of the cylinder body 231 under the elastic force of the compression spring 236; Step two, install the pressure head, install the pressure head 621 on the cylinder 612 of the connecting seat 611, slide and then rotate the pressure head 621 to drive the fixed block 627 to move to the inside of the inclined groove 614 in the through groove 613, the installation of the pressure head 621 is quickly completed through the clamping cooperation; Step three, move the feeding, place the graphite powder in the inside of the mold 24, the square plate 21 slides in the inside of the sliding groove 8 through the sliding block 22, when the square plate 21 moves to the specified position, the guide sleeve 9 is located in the arc groove under 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; Step four, pressure forming, the hydraulic cylinder 5 work with the slide plate 7 on the guide rod 3 down, so that the slide plate 7 bottom connecting seat 611 with the pressure head 621 down, so that the pressure head 621 and the ring 64 with the material inside the mold 24 contact and extrusion, so that the graphite powder inside the mold 24 compression forming; Step five, demolding, hydraulic cylinder 5 with the pressure head 621 and ring 624 reset, the square plate 21 through the bottom of the slider 22 in the slide 8 inside the slide, drive the formed body away from the pressure assembly 6, at this time the electric push rod 210 work, the buffer assembly 25 and the top of the blank ejection cylinder 231, so as to facilitate the taking of materials.

[0025] In use, the pressure head 621 is installed on the connecting seat 611 of the cylinder 612, so that the fixed block 627 inside the pressure head 621 is located in the through groove 613, the middle rod 622 is located in the stepped hole 615, then when the fixed block 627 moves to the bottom of the through groove 613, by rotating the pressure head 621, the pressure head 621 drives the fixed block 627 to move to the inclined groove 614 inside the through groove 613, while the clamping block 625 contacts and extrudes the inner wall of the stepped hole 615, the clamping block 625 shrinks under stress, the clamping block 625 is located in the notch, the positioning ring 624 rotates with the pressure head 621 through the middle rod 622, so that the clamping block 625 is located in the clamping groove 616, and the clamping block 625 is quickly installed by clamping.

[0026] The mold 24 is placed in the cylinder 231, the bottom of the mold 24 contacts and extrudes the inclined edge of the contact block 235, the compression spring 236 is compressed under stress, so that the contact block 235 drives the round rod 234 to move away from the mold 24, and under the elastic force of the compression spring 236, the mold 24 is installed in the cylinder 231.

[0027] After installation, graphite powder is added to the inside of the mold 24, then the square plate 21 slides in the slide 8 to drive the mold 24 to move towards the guide rod 3, the positioning block 26 contacts and extrudes between the guide rod 3, the positioning block 26 moves away from the guide rod 3 in the square plate 21, when the square plate 21 moves to the specified position, under the action of the mutual repulsive force between the two positioning blocks 26, the positioning block 26 moves towards the guide rod 3, so that the guide sleeve 9 is located in the arc groove, and the arc groove cooperates with the guide sleeve 9 to quickly guide the mold 24 to the preset position.

[0028] The mold 24 moves to the designated position, the hydraulic cylinder 5 works to drive 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 circular ring 64 contact and extrude the material inside the mold 24, the circular ring 64 will contact the edge of the blank before the pressure head 621 at the initial stage of stamping, at this time, the elastic deformation energy of the return spring 65 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 with the continuous downward movement of the pressure head 621, the pressure head 621 applies radial pressure to the middle part of the blank, while the circular ring 64 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 balanced area.

[0029] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... " does not, without more limitations, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0030] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A graphite liner forming and processing equipment for electric rice cookers, characterized in that: include: A platform (1), wherein a slide groove (8) is provided on the top of the platform (1), a guide rod (3) is fixedly connected to the top of the platform (1), a top plate (4) is fixedly connected to the top of the guide rod (3), a hydraulic cylinder (5) is fixedly connected to the top of the top plate (4), and an output end of the hydraulic cylinder (5) is fixedly connected to a slide plate (7); A pressure assembly (6), wherein the pressure assembly (6) is fixedly mounted at the bottom middle of the slide plate (7); A moving assembly (2), the moving assembly (2) being mounted on top of the platform (1); The moving assembly (2) comprises a square plate (21), a support member (23) is fixedly connected to the middle of the top of the square plate (21), and a mold (24) is provided inside the support member (23); The support member (23) includes a cylinder (231), the cylinder (231) is fixedly connected to the square plate (21), a square groove (233) is provided on the inner wall side of the cylinder (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), and two ends of the compression spring (236) are respectively fixedly connected to the inner wall of the square groove (233) and a side of the contact block (235) close to the round rod (234), and the number of the contact blocks (235) is multiple.

2. The graphite liner forming and processing equipment for electric rice cookers according to claim 1, characterized in that: There are four guide rods (3), which are evenly distributed at the corners of the top plate (4) near the guide rod (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 a slide groove (8). The platform (1) is fixedly connected to a guide sleeve (9) near the top of the guide rod (3). The guide sleeve (9) is sleeved on the outside of the guide rod (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 with the pressure component (6) as the center.

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

4. The graphite liner forming and processing equipment for electric rice cookers according to claim 3, characterized in that: The side of the square plate (21) is slidably connected to a positioning block (26), and there are two positioning blocks (26). The two positioning blocks (26) are symmetrically arranged with the square plate (21) as the center. One positioning block (26) is fixedly connected to a fixed plate (27) at the middle of one side of the square plate (21), and the other positioning block (26) is fixedly connected to an L-shaped plate (28) at the end of one side of the square plate (21). There are two L-shaped plates (28), and the two L-shaped plates (28) are symmetrically arranged with the fixed plate (27) as the center. One end of the fixed plate (27) away from the positioning block (26) is fixedly connected to a limiting block (29), and 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).

5. The graphite liner forming and processing equipment for electric rice cookers according to claim 1, characterized in that: There are multiple square grooves (233), and the multiple square grooves (233) 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 outside of the cylinder (231). There are multiple square holes (232), and the multiple square holes (232) are evenly distributed with the cylinder (231) as the center.

6. The graphite liner forming and processing equipment for electric rice cookers according to claim 4, characterized in that: The buffer assembly (25) includes a bottom plate (251), the bottom plate (251) is located inside the mold (24), the bottom plate (251) is slidably connected to the inner wall of the mold (24), the middle of the bottom of the bottom 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 bottom plate (251) away from the electric push rod (210), the end of the spring plate (252) away from the bottom plate (251) is fixedly connected to the base (253), the middle of the top of the base (253) is fixedly connected to a protrusion (254), and the top edge of the base (253) is fixedly connected to a side plate (255).

7. The graphite liner forming and processing equipment for electric rice cookers according to claim 1, characterized in that: The pressure assembly (6) includes a fixed seat (61), the fixed seat (61) is fixedly connected to the middle of the bottom of the slide plate (7), a pressure piece (62) is installed on the outer bottom of the fixed seat (61), an intermediate ring (66) is fixedly connected to the outer side of the pressure piece (62), a return spring (65) is sleeved on the outer side of the pressure piece (62), a circular ring (64) is slidably connected to the outer side of the pressure piece (62), a rod is provided on the side of the circular ring (64) close to the pressure piece (62), the two ends of the return spring (65) are respectively fixedly connected to the intermediate ring (66) and the circular ring (64), an elastic plate (63) is provided inside the pressure piece (62), the two ends of the elastic plate (63) are respectively fixedly connected to the fixed seat (61) and the pressure piece (62), a groove (67) is provided in the middle of the bottom of the pressure piece (62), and the groove (67) is adapted to the protrusion (254).

8. The graphite liner forming and processing equipment for electric rice cookers according to claim 7, characterized in that: The fixing seat (61) includes a connecting seat (611), a cylinder (612) is fixedly connected to the middle of one end of the connecting seat (611) away from the slide (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 vertically, a stepped hole (615) is provided at the middle of one end of the cylinder (612) away from the connecting seat (611), and a clamping groove (616) is provided on the outer side of the top of the stepped hole (615).

9. The graphite liner forming and processing equipment for electric rice cookers according to claim 8, characterized in that: The pressure member (62) includes a pressure head (621), the pressure head (621) is sleeved on the outside of the cylinder (612), an intermediate 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 intermediate rod (622), a positioning ring (624) is sleeved on the outer side of the intermediate rod (622), the intermediate rod (622) is slidably connected to the positioning ring (624) through the guide groove (623), a clamping block (625) is fixedly connected to the outer side of the positioning ring (624), and the positioning ring (622) is fixedly connected to the outer side of the positioning ring (624). 4) A notch is provided near the edge of the clamping block (625), the clamping block (625) is located inside the notch, the clamping block (625) is L-shaped, one end of the clamping block (625) away from the positioning ring (624) is located inside the clamping groove (616), a through hole (626) is provided on the inner side of the intermediate ring (66) near the pressure head (621), the rod is located inside the through hole (626), the inner wall of the pressure head (621) is fixedly connected with a fixing block (627), and the fixing block (627) is located inside the through groove (613) and the inclined groove (614).

10. A method for forming a graphite inner container of an electric rice cooker, characterized in that: The following steps are involved: 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 extrusion. 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). Slide and rotate the pressure head (621) so that the pressure head (621) drives the fixed block (627) to move from the inside of the through groove (613) to the inside of the inclined groove (614). By snap-fitting, the pressure head (621) can be quickly installed. Step 3: Move the material and place graphite powder into the mold (24). The square plate (21) slides inside the slide groove (8) through the slider (22). When the square plate (21) moves to the specified position, the guide sleeve (9) is located inside the arc groove under the action of the mutual repulsive force 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. 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) contact and squeeze the material inside the mold (24), so that the graphite powder inside the mold (24) is pressed and formed; Step 5: Demolding and taking out the material. 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 slider (22) at the bottom, 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 the taking out of the material.

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