Stamping equipment capable of conveniently fixing inner container of electric cooker

Abstract

The stamping equipment capable of conveniently fixing the inner container of the electric cooker comprises a stamping machine body, a stamping assembly is arranged at the upper end of the stamping machine body, a pushing device is arranged at the position, located below the stamping assembly, in the stamping machine body, and cleaning assemblies are fixedly installed on the two sides of the stamping machine body. The supporting plate supports the center position of the metal plate, the situation that a bulge is formed in the center of the electric cooker inner container in the stamping process, and the appearance and quality of the electric cooker inner container are affected is avoided, the electric cooker inner container descends and stays at the top of the pushing plate through the counter-acting force of the pressing spring, the electric cooker inner container is convenient to take out, and then the production efficiency of the electric cooker is improved. The surface of the metal plate is cleaned, the situation that during stamping, dust and impurities on the surface of the metal plate cause indentation of the electric cooker inner container, and consequently the reject ratio of finished electric cooker inner container products is increased is avoided, stamping and trimming are integrated, the performance of stamping equipment is improved, and the production efficiency of the electric cooker inner container is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of rice cooker inner pots. More specifically, the present invention relates to a stamping device for conveniently fixing a rice cooker inner pot. Background Art

[0002] A rice cooker is a household appliance used to simplify the traditional rice - cooking process. It automatically completes functions such as rice - cooking and heat - preservation through built - in heating elements and temperature control systems. The design of a rice cooker generally includes a housing, an inner pot, a heating plate, a temperature control device, and a heat - preservation layer. Among them, the inner pot of the rice cooker is the part that directly contacts the food, and its material and design have an important impact on the cooking effect.

[0003] During the production process of the rice cooker inner pot, a stamping device is needed to stamp and shape the rice cooker inner pot. After the existing small - scale stamping device stamps and forms the rice cooker inner pot, due to the deformation of the rice cooker inner pot, it is not easy to take out the inner pot after shaping, and it cannot fix the metal sheet for manufacturing the inner pot well. During the stamping and forming process, the metal sheet is prone to shift, affecting the stamping effect of the rice cooker inner pot. Moreover, before stamping and forming, it is necessary to keep the surface of the metal sheet clean. Otherwise, during the stamping process, due to dust and other debris, it is easy to cause indentations on the rice cooker inner pot after stamping, increasing the unqualified rate of the rice cooker. In addition, when the rice cooker inner pot is formed, since the outer edge of the mold contacts the metal sheet first, it is easy to form a bulge in the center of the rice cooker inner pot during stamping, affecting the appearance and quality of the rice cooker inner pot. Summary of the Invention

[0004] In order to overcome the above - mentioned defects of the prior art, the present invention provides a stamping device for conveniently fixing a rice cooker inner pot, which can avoid forming a bulge in the center of the rice cooker inner pot during stamping, affecting the appearance and quality of the rice cooker inner pot. The rice cooker inner pot can be taken out conveniently, thereby improving the production efficiency of the rice cooker, cleaning the surface of the metal sheet, avoiding indentations on the rice cooker inner pot caused by dust and impurities on the surface of the metal sheet during stamping, and further increasing the unqualified rate of the rice cooker inner pot finished products. It realizes stamping and trimming integration, improves the performance of the stamping device, and improves the production efficiency of the rice cooker inner pot to solve the problems raised in the above - mentioned background art.

[0005] To achieve the above object, the present invention provides the following technical solution: A stamping device for conveniently fixing a rice cooker inner pot, including a stamping body. A stamping component is arranged at the upper end of the stamping body. A pushing device is arranged below the stamping component inside the stamping body. Cleaning components are fixedly installed on both sides of the stamping body.

[0006] The punching machine body comprises a fixed base, both ends of the fixed base are fixedly installed with limit rods, the top of the limit rods is fixedly installed with a top plate, and the top of the top plate is fixedly installed with a hydraulic punching drive;

[0007] The pushing device includes a mold block, which is fixedly installed on the top of a fixed base, a pushing plate is movably sleeved on the outer surface of the mold block, a positioning groove is provided on the top of the pushing plate, a cutting groove is provided on the top of the pushing plate close to the mold block, a plurality of fixed sleeves are fixedly installed on the top of the fixed base located on one side of the mold block, a movable inner rod is movably sleeved inside the fixed sleeve, the top of the movable inner rod is fixedly connected to the bottom of the pushing plate, a buffer spring is movably sleeved inside the fixed sleeve, and the buffer spring is located between the movable inner rod and the fixed sleeve.

[0008] In a preferred embodiment, the stamping assembly includes a lifting frame, which is movably sleeved on the outer surface of the limiting rod, the top of the lifting frame is fixedly connected to the bottom of the hydraulic stamping drive, limiting grooves are provided on both sides of the lifting frame, and a stamping die is fixedly installed on the bottom of the lifting frame.

[0009] In a preferred embodiment, a support ring is fixedly installed on the outer surface of the upper end of the stamping die, a pressing plate is fixedly installed on the bottom of the support ring, hydraulic cutting cylinders are fixedly installed on both sides of the top of the support ring, the hydraulic cutting cylinders are located inside the limiting groove, a movable plate is fixedly installed on the bottom of the hydraulic cutting cylinder, an annular knife is fixedly installed on the bottom of the movable plate, and the annular knife is movably connected between the pressing plate and the stamping die.

[0010] In a preferred embodiment, the stamping die includes a pressing block, a movable inner cavity is opened at the upper end of the pressing block, a mold cavity is opened at the bottom of the pressing block, a connecting groove is opened at the bottom of the movable inner cavity, the mold cavity and the movable inner cavity are connected through the connecting groove, the pressing block is fixedly installed at the bottom of the lifting frame, a pressing spring is fixedly installed at the bottom of the lifting frame, a support plate is fixedly installed at the bottom of the pressing spring, a telescopic rod is movably sleeved on the outer surface of the pressing spring, and the telescopic rod is located between the lifting frame and the support plate.

[0011] In a preferred embodiment, the support plate is embedded and installed inside the connecting groove.

[0012] In a preferred embodiment, the mold cavity is movably sleeved on the top of the mold block, the pressing plate is movably installed on the top of the push plate, and the annular knife is movably sleeved inside the cutting groove.

[0013] In a preferred embodiment, the cleaning assembly includes two bottom boxes. A filter screen plate is fixedly installed on one side of the two bottom boxes. A bottom sleeve is fixedly installed on the top of the bottom box. The bottom of the bottom sleeve is communicated with the bottom box. A second one-way valve is arranged at the bottom of the bottom sleeve. An active inner tube is movably sleeved inside the bottom sleeve. A sealing rubber plug is fixedly installed on the outer surface of the bottom of the active inner tube. The sealing rubber plug is movably sleeved inside the bottom sleeve. A top air duct is fixedly installed on the top of the active inner tube. A fixing plate is fixedly installed on the outer surface of the upper end of the bottom sleeve. A first one-way valve is arranged inside the active inner tube.

[0014] In a preferred embodiment, the fixing plate is fixedly installed on the outer surface of the limiting rod. One side of the top air duct is fixedly connected to the upper end of the pressing block. One side of the top air duct is communicated with the inside of the active cavity.

[0015] The technical effects and advantages of the present invention:

[0016] 1. The present invention places the metal sheet inside the positioning groove to complete the limitation. During the stamping process, the pressing plate first presses on the top of the pushing plate to fix the metal sheet, avoiding the offset of the metal sheet during the stamping process of the stamping equipment, improving the forming effect of the rice cooker, and by setting the support plate, when the pressing block stamps, the support plate supports the central position of the metal sheet to avoid forming a bulge in the center of the inner liner of the rice cooker, affecting the appearance and quality of the inner liner of the rice cooker.

[0017] 2. The buffer spring of the present invention uses its own reaction force to raise the pushing plate and push the inner liner of the rice cooker on the outer surface of the mold block upward. At the same time, the lifting frame rises. Through the reaction force of the pressing spring, the inner liner of the rice cooker is pushed downward through the support plate, so that it stays on the top of the pushing plate, making it convenient to take out the inner liner of the rice cooker, thereby improving the production efficiency of the rice cooker.

[0018] 3. The present invention sets the cleaning assembly. During the process of the lifting frame descending, the air inside the bottom sleeve is compressed. The air inside the bottom sleeve passes through the active inner tube, through the top air duct, and enters the inside of the mold cavity from the active cavity, blowing the metal sheet on the top of the pushing plate to clean the surface of the metal sheet, avoiding the formation of indentations on the inner liner of the rice cooker due to dust and impurities on the surface of the metal sheet during stamping, and thus avoiding the increase in the unqualified rate of the finished product of the inner liner of the rice cooker.

[0019] 4. The annular knife of the present invention moves out of the inside of the pressing plate and moves into the cutting groove to cut the edge of the inner liner of the rice cooker inside the positioning groove, making a simple trimming treatment on the inner liner of the rice cooker, reducing subsequent processes, realizing stamping and trimming in one, improving the performance of the stamping equipment, and improving the production efficiency of the inner liner of the rice cooker. Brief Description of the Drawings

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0021] Figure 2 This is a schematic diagram of the stamping body structure of the present invention.

[0022] Figure 3 This is a schematic diagram of the material pushing device structure of the present invention.

[0023] Figure 4 This is a schematic diagram of the cleaning component structure of the present invention.

[0024] Figure 5 This is a schematic diagram of the stamping component structure of the present invention.

[0025] Figure 6 This is a schematic diagram of the internal structure of the stamping component of the present invention.

[0026] Figure 7 This is a schematic diagram of the stamping die structure of the present invention.

[0027] Reference numerals are: 1, stamping body; 2, stamping component; 3, material pushing device; 4, cleaning component; 11, fixed base; 12, limiting rod; 13, top plate; 14, hydraulic stamping drive; 21, lifting frame; 22, limiting groove; 23, support ring; 24, pressing plate; 25, stamping die; 26, hydraulic cutting cylinder; 27, movable plate; 28, annular knife; 251, pressing block; 252, die cavity; 253, movable inner cavity; 254, communication groove; 255, telescopic rod; 256, pressing spring; 257, support plate; 31, die block; 32, fixed sleeve; 33, buffer spring; 34, movable inner rod; 35, pushing plate; 36, positioning groove; 37, cutting groove; 41, bottom box; 42, filter screen plate; 43, bottom sleeve; 44, second one-way valve; 45, fixing plate; 46, movable inner tube; 47, sealing rubber plug; 48, top air duct. Detailed Description of the Invention

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] First Embodiment

[0030] As shown in the attached Figure 1 to the attached Figure 3 figure, the attached Figure 7This is an embodiment of the present invention. By arranging a support plate 257 inside the pressing block 251, when the hydraulic stamping drive 14 controls the lifting frame 21 to descend, after the pressing plate 24 presses the metal sheet on the top of the die block 31, the metal sheet deforms and is stamped into the shape of an inner pot of an electric rice cooker. During the process of stamping the metal sheet, the support plate 257 first contacts the metal sheet on the top of the die block 31, presses on the top of the metal sheet, the pushing plate 35 is pressed down by the pressing plate 24, and the metal sheet is gradually stamped into the inner pot of the electric rice cooker. By arranging the support plate 257, when the pressing block 251 stamps, the support plate 257 supports the central position of the metal sheet, preventing a bulge from forming in the center of the inner pot of the electric rice cooker during stamping, which affects the appearance and quality of the inner pot of the electric rice cooker.

[0031] A stamping device for conveniently fixing the inner pot of an electric rice cooker, comprising a stamping machine body 1, a stamping assembly 2 is arranged at the upper end of the stamping machine body 1, a pushing device 3 is arranged below the stamping assembly 2 inside the stamping machine body 1, and cleaning assemblies 4 are fixedly installed on both sides of the stamping machine body 1;

[0032] The stamping machine body 1 includes a fixed base 11, limiting rods 12 are fixedly installed at both ends of the fixed base 11, a top plate 13 is fixedly installed at the top of the limiting rods 12, and a hydraulic stamping drive 14 is fixedly installed at the top of the top plate 13;

[0033] The pushing device 3 includes a die block 31, the die block 31 is fixedly installed on the top of the fixed base 11, a pushing plate 35 is movably sleeved on the outer surface of the die block 31, a positioning groove 36 is formed at the top of the pushing plate 35, a cutting groove 37 is formed at one side of the top of the pushing plate 35 close to the die block 31, a plurality of fixed sleeves 32 are fixedly installed on the top of the fixed base 11 on one side of the die block 31, a movable inner rod 34 is movably sleeved inside the fixed sleeve 32, the top of the movable inner rod 34 is fixedly connected to the bottom of the pushing plate 35, and a buffer spring 33 is movably sleeved inside the fixed sleeve 32, and the buffer spring 33 is located between the movable inner rod 34 and the fixed sleeve 32.

[0034] A positioning groove 36 is formed at the top of the pushing plate 35. Before the stamping device stamps, the metal sheet is directly placed inside the positioning groove 36 to complete the limiting. During the stamping process, the pressing plate 24 first presses on the top of the pushing plate 35 to fix the metal sheet, preventing the metal sheet from shifting during the stamping process of the stamping device and improving the forming effect of the electric rice cooker.

[0035] During the stamping process, the pressing plate 24 first presses on the top of the pushing plate 35, and through the lowering of the lifting frame 21, presses on the top of the pushing plate 35. The buffer spring 33 is compressed, and the movable inner rod 34 presses into the inside of the fixed sleeve 32. At this time, the metal sheet is extruded by the die block 31 and the pressing block 251 and is stamped into the inner pot of the rice cooker between the die block 31 and the die cavity 252. After the stamping is completed, the hydraulic stamping drive 14 controls the lifting frame 21 to rise. At this time, the buffer spring 33, through its own reaction force, causes the pushing plate 35 to rise and pushes the inner pot of the rice cooker on the outer surface of the die block 31 to move upward. At the same time, the lifting frame 21 rises, and through the reaction force of the pressing spring 256, the inner pot of the rice cooker is pushed down through the support plate 257 so that it stays on the top of the pushing plate 35, making it convenient to take out the inner pot of the rice cooker, thereby improving the production efficiency of the rice cooker.

[0036] Second Embodiment

[0037] As shown in the attached Figure 1 to the attached Figure 4 and the attached Figure 7 This is the second embodiment of the present invention. During the process of the lifting frame 21 descending and the pressing block 251 stamping and forming the metal sheet, by setting the cleaning component 4, during the descent of the lifting frame 21, the air inside the bottom sleeve 43 is compressed. The air inside the bottom sleeve 43 passes through the movable inner tube 46, through the top air duct 48, and enters the inside of the die cavity 252 from the movable inner cavity 253, blowing the metal sheet on the top of the pushing plate 35 and cleaning the surface of the metal sheet, avoiding indentations on the inner pot of the rice cooker caused by dust and impurities on the surface of the metal sheet during stamping, and thus avoiding an increase in the rejection rate of the finished inner pot of the rice cooker.

[0038] As shown in the attached Figure 6 As shown, the stamping component 2 includes a lifting frame 21. The lifting frame 21 is movably sleeved on the outer surface of the limiting rod 12. The top of the lifting frame 21 is fixedly connected to the bottom of the hydraulic stamping drive 14. Limiting grooves 22 are opened on both sides inside the lifting frame 21, and a stamping die 25 is fixedly installed at the bottom of the lifting frame 21.

[0039] Among them, the stamping die 25 includes a pressing block 251. An active inner cavity 253 is opened at the upper end of the pressing block 251, a die cavity 252 is opened at the bottom of the pressing block 251, a communication groove 254 is opened at the bottom of the active inner cavity 253, and the die cavity 252 is connected to the active inner cavity 253 through the communication groove 254. The pressing block 251 is fixedly installed at the bottom of the lifting frame 21. A pressing spring 256 is fixedly installed at the bottom of the lifting frame 21. A support plate 257 is fixedly installed at the bottom of the pressing spring 256. A telescopic rod 255 is movably sleeved on the outer surface of the pressing spring 256, and the telescopic rod 255 is located between the lifting frame 21 and the support plate 257.

[0040] Among them, the support plate 257 is fitted and installed inside the communication groove 254.

[0041] Among them, the mold cavity 252 is movably sleeved on the top of the mold block 31, the pressing plate 24 is movably installed on the top of the pushing plate 35, and the annular cutter 28 is movably sleeved inside the cutting groove 37.

[0042] As shown in the Figure 4 attached figure, the cleaning assembly 4 includes two bottom boxes 41. A filter screen plate 42 is fixedly installed on one side of the two bottom boxes 41. A bottom sleeve 43 is fixedly installed on the top of the bottom box 41. The bottom of the bottom sleeve 43 communicates with the bottom box 41. A second one-way valve 44 is arranged at the bottom of the bottom sleeve 43. An active inner tube 46 is movably sleeved inside the bottom sleeve 43. A sealing rubber plug 47 is fixedly installed on the outer surface of the bottom of the active inner tube 46. The sealing rubber plug 47 is movably sleeved inside the bottom sleeve 43. A top air duct 48 is fixedly installed on the top of the active inner tube 46. A fixing plate 45 is fixedly installed on the outer surface of the upper end of the bottom sleeve 43. A first one-way valve is arranged inside the active inner tube 46.

[0043] Among them, the communication directions of the first one-way valve and the second one-way valve 44 inside the active inner tube 46 are both upward. When the lifting frame 21 drives the top air duct 48 to rise, the first one-way valve inside the active inner tube 46 closes. At this time, negative pressure is formed inside the bottom sleeve 43, and the second one-way valve 44 opens. Air enters the inside of the bottom sleeve 43 through the bottom box 41, and the filter screen plate 42 is used for interception to filter the air entering the inside of the bottom box 41. As the lifting frame 21 descends to stamp the metal sheet, the active inner tube 46 descends, the second one-way valve 44 closes, the pressure inside the bottom sleeve 43 increases. At this time, the first one-way valve inside the active inner tube 46 opens, so that the air inside the bottom sleeve 43 passes through the top air duct 48 and blows out along the communication groove 254 to clean the metal sheet at the bottom of the mold cavity 252.

[0044] Among them, the fixing plate 45 is fixedly installed on the outer surface of the limiting rod 12. One side of the top air duct 48 is fixedly connected to the upper end of the pressing block 251. One side of the top air duct 48 communicates with the inside of the active cavity 253.

[0045] Third Embodiment

[0046] As shown in the Figure 1 to the attached Figure 6In an embodiment of the present invention, after the metal sheet is placed inside the positioning groove 36 and the pressing block 251 presses and forms the metal sheet, the hydraulic cutting cylinder 26 is activated to control the annular cutter 28 at the bottom of the movable plate 27 to descend. The annular cutter 28 moves out of the pressing plate 24 and moves into the cutting groove 37 to cut the edge of the inner pot of the rice cooker inside the positioning groove 36, performing a simple edge trimming process on the inner pot of the rice cooker, reducing subsequent processes, achieving integrated stamping and edge trimming, and improving the performance of the stamping equipment.

[0047] Among them, a support ring 23 is fixedly installed on the outer surface of the upper end of the stamping die 25. A pressing plate 24 is fixedly installed at the bottom of the support ring 23. Hydraulic cutting cylinders 26 are fixedly installed on both sides of the top of the support ring 23. The hydraulic cutting cylinders 26 are located inside the limit grooves 22. The bottom of the hydraulic cutting cylinder 26 is fixedly installed with a movable plate 27. The annular cutter 28 is fixedly installed at the bottom of the movable plate 27, and the annular cutter 28 is movably sleeved between the pressing plate 24 and the stamping die 25.

[0048] After the inner pot of the rice cooker is pressed and formed, and the edge of the inner pot of the rice cooker is located between the pushing plate 35 and the pressing plate 24, through the cutting of the annular cutter 28, a simple edge trimming process is performed on the inner pot of the rice cooker. Subsequently, only deburring is required by grinding, reducing the processing procedures of the inner pot of the rice cooker and improving the production efficiency of the inner pot of the rice cooker.

[0049] The working principle of the present invention: Before the stamping equipment performs stamping, the metal sheet is directly placed inside the positioning groove 36 to complete the positioning. During the stamping process, the pressing plate 24 first presses on the top of the pushing plate 35 to fix the metal sheet. The hydraulic stamping drive 14 controls the lowering of the lifting frame 21 to press on the top of the pushing plate 35. The buffer spring 33 is compressed, and the movable inner rod 34 is pressed into the fixed sleeve 32. At this time, the metal sheet is pressed and formed into the inner pot of the rice cooker between the die block 31 and the die cavity 252 through the extrusion of the die block 31 and the pressing block 251. After the stamping is completed, the hydraulic stamping drive 14 controls the lifting frame 21 to rise. At this time, the buffer spring 33, through its own reaction force, causes the pushing plate 35 to rise and pushes the inner pot of the rice cooker on the outer surface of the die block 31 to move upward. At the same time, the lifting frame 21 rises. Through the reaction force of the pressing spring 256, the inner pot of the rice cooker is pushed down through the support plate 257 to make it stay on the top of the pushing plate 35;

[0050] During the descent of the lifting frame 21, when the lifting frame 21 drives the top air duct 48 to rise, the first one-way valve inside the movable inner tube 46 closes. At this time, a negative pressure is formed inside the bottom sleeve 43, the second one-way valve 44 opens, and air enters the inside of the bottom sleeve 43 through the bottom box 41. By means of the interception of the filter screen plate 42, the air entering the inside of the bottom box 41 is filtered. As the lifting frame 21 descends to stamp the metal sheet, the movable inner tube 46 descends, the second one-way valve 44 closes, and the pressure inside the bottom sleeve 43 increases. At this time, the movable inner tube 46 opens, allowing the air inside the bottom sleeve 43 to pass through the top air duct 48 and blow out along the communication groove 254 to clean the metal sheet at the bottom of the mold cavity 252;

[0051] After the metal sheet is placed inside the positioning groove 36 and the pressing block 251 stamps and forms the metal sheet, the hydraulic cutting cylinder 26 is activated to control the annular knife 28 at the bottom of the movable plate 27 to descend. The annular knife 28 moves out of the inside of the pressing plate 24 and moves into the inside of the cutting groove 37 to cut the edge of the inner pot of the rice cooker inside the positioning groove 36, performing a simple edge trimming process on the inner pot of the rice cooker.

[0052] Finally, several points should be noted: In the attached drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the usual designs. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0053] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A punching device for conveniently fixing the inner pot of an electric rice cooker, comprising a punching machine body (1), characterized in that: A punching assembly (2) is disposed at the upper end of the punching machine body (1), a material pushing device (3) is disposed inside the punching machine body (1) below the punching assembly (2), and cleaning assemblies (4) are fixedly mounted on both sides of the punching machine body (1); The punching machine body (1) comprises a fixed base (11), both ends of the fixed base (11) are fixedly mounted with limit rods (12), the top of the limit rods (12) is fixedly mounted with a top plate (13), and the top of the top plate (13) is fixedly mounted with a hydraulic punching drive (14); The push device (3) comprises a mold block (31), wherein the mold block (31) is fixedly mounted on the top of a fixed base (11), a push plate (35) is movably sleeved on the outer surface of the mold block (31), a positioning groove (36) is provided on the top of the push plate (35), a cutting groove (37) is provided on the top of the push plate (35) on a side close to the mold block (31), a plurality of fixed sleeves (32) are fixedly mounted on the top of the fixed base (11) and located on one side of the mold block (31), a movable inner rod (34) is movably sleeved inside the fixed sleeve (32), the top of the movable inner rod (34) is fixedly connected to the bottom of the push plate (35), a buffer spring (33) is movably sleeved inside the fixed sleeve (32), and the buffer spring (33) is located between the movable inner rod (34) and the fixed sleeve (32).

2. A punching device for conveniently fixing the inner container of an electric rice cooker according to claim 1, characterized in that: The stamping assembly (2) comprises a lifting frame (21), the lifting frame (21) is movably sleeved on the outer surface of the limiting rod (12), the top of the lifting frame (21) is fixedly connected to the bottom of the hydraulic stamping drive (14), limiting grooves (22) are provided on both sides of the lifting frame (21), and a stamping die (25) is fixedly installed at the bottom of the lifting frame (21).

3. A punching device for conveniently fixing the inner container of an electric rice cooker according to claim 2, characterized in that: A support ring (23) is fixedly mounted on the outer surface of the upper end of the punching die (25); a pressing plate (24) is fixedly mounted on the bottom of the support ring (23); hydraulic cutting cylinders (26) are fixedly mounted on both sides of the top of the support ring (23); the hydraulic cutting cylinders (26) are located inside the limiting groove (22); a movable plate (27) is fixedly mounted on the bottom of the hydraulic cutting cylinder (26); an annular knife (28) is fixedly mounted on the bottom of the movable plate (27); and the annular knife (28) is movably sleeved between the pressing plate (24) and the punching die (25).

4. A punching device for conveniently fixing the inner container of an electric rice cooker according to claim 3, characterized in that: The stamping die (25) comprises a pressing block (251), a movable inner cavity (253) is provided at the upper end of the pressing block (251), a die cavity (252) is provided at the bottom of the pressing block (251), a connecting groove (254) is provided at the bottom of the movable inner cavity (253), the die cavity (252) and the movable inner cavity (253) are connected via the connecting groove (254), the pressing block (251) is fixedly mounted on the bottom of the lifting frame (21), a pressing spring (256) is fixedly mounted on the bottom of the lifting frame (21), a supporting plate (257) is fixedly mounted on the bottom of the pressing spring (256), a telescopic rod (255) is movably sleeved on the outer surface of the pressing spring (256), and the telescopic rod (255) is located between the lifting frame (21) and the supporting plate (257).

5. The punching device for conveniently fixing the inner container of an electric rice cooker according to claim 4, characterized in that: The support plate (257) is embedded and installed inside the connecting groove (254).

6. The punching device for conveniently fixing the inner container of an electric rice cooker according to claim 4, characterized in that: The mold cavity (252) is movably sleeved on the top of the mold block (31), the pressing plate (24) is movably installed on the top of the pushing plate (35), and the annular knife (28) is movably sleeved inside the cutting groove (37).

7. A punching device for conveniently fixing the inner container of an electric rice cooker according to claim 6, characterized in that: The cleaning assembly (4) comprises two bottom boxes (41), one side of the two bottom boxes (41) is fixedly mounted with a filter screen plate (42), the top of the bottom box (41) is fixedly mounted with a bottom sleeve (43), the bottom of the bottom sleeve (43) is connected to the bottom box (41), the bottom of the bottom sleeve (43) is provided with a second one-way valve (44), the interior of the bottom sleeve (43) is movably sleeved with a movable inner tube (46), the outer surface of the bottom of the movable inner tube (46) is fixedly mounted with a sealing rubber plug (47), the sealing rubber plug (47) is movably sleeved inside the bottom sleeve (43), the top of the movable inner tube (46) is fixedly mounted with a top air duct (48), the outer surface of the upper end of the bottom sleeve (43) is fixedly mounted with a fixing plate (45), and the interior of the movable inner tube (46) is provided with a first one-way valve.

8. The punching device for conveniently fixing the inner container of an electric rice cooker according to claim 7, characterized in that: The fixing plate (45) is fixedly mounted on the outer surface of the limiting rod (12), one side of the top air duct (48) is fixedly connected to the upper end of the pressing block (251), and one side of the top air duct (48) is connected to the interior of the movable inner cavity (253).

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