Medium-frequency electric furnace for automatic feeding and discharging of casting well lid
By introducing an automatic drop-out and casting system into the intermediate frequency electric furnace and combining the splash-proof cover design, the small intermediate frequency electric furnace is solved for the low efficiency and safety hazards in the process of inlet and discharge of the cast manhole cover, and automatic operation and safety improvement are achieved.
Patent Information
- Application Number
- CN202420827935.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-22
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-22
AI Technical Summary
The existing small medium-frequency electric furnaces used to cast manhole covers require manual operation during feeding and discharge, which is inefficient and has safety risks, especially when casting, it is prone to cause molten iron to splash.
An intermediate frequency electric furnace with automatic inlet and discharge of cast manhole covers was designed, and automatic discharge and casting was achieved using mechanical devices such as electric push rods, hydraulic rods and electric plug-in valves. A splash-proof cover was set to improve safety, and the material loading capacity was monitored through the camera. to ensure accurate delivery.
The automatic material inlet and discharge function is realized, which improves work efficiency and safety, avoids the splash of molten iron, and reduces the risk of damage for workers during the smelting process.
Smart Images
Figure CN222187769U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of medium frequency electric furnaces, and in particular relates to a medium frequency electric furnace for automatically feeding and discharging materials for casting well covers. Background Art
[0002] A manhole cover is a device used to cover a deep well on a road or in a home. Its main purpose is to prevent people or objects from falling. There are many methods for manufacturing manhole covers, among which casting is the most common method on the market. The casting method can produce large-scale manhole covers, and the manufacturing cost is relatively low. Before casting the manhole cover, a furnace is needed to melt the iron material and then pour the molten iron into a sand mold to cool and shape it. A medium-frequency electric furnace is a furnace commonly used in manhole cover casting work and has many advantages. However, in the prior art, for many small medium-frequency electric furnaces used for casting manhole covers, feeding and discharging need to be done manually, which has low work efficiency. In addition, during the discharging and casting process, it is easy to cause molten iron to splash due to misalignment with the casting port of the sand mold, affecting work safety. Utility Model Content
[0003] In view of the above problems, the purpose of the utility model is to provide a medium-frequency electric furnace with automatic feeding and discharging of casting manhole covers, which has the function of automatically feeding materials, shortens the interval between the preparation processes of two batches of materials, improves work efficiency, and has an automatic discharging function, which can not only realize the function of automatic pouring, but also improve the safety of the pouring process and avoid splashing. At the same time, the device is provided with a splash-proof cover, which does not need to be opened at ordinary times. At the same time, the setting of the first electric gate valve and the second electric gate valve does not affect the feeding of materials, effectively avoiding injuries to workers when explosions occur during the smelting process, and improving operational safety.
[0004] To achieve the above objectives, the utility model provides the following technical solutions: a medium-frequency electric furnace for automatically feeding and discharging materials of a casting manhole cover, comprising an outer cover, an inner cover is installed inside the outer cover, an electric push rod is rotatably connected inside the inner cover, a cover plate is rotatably installed on the top of the inner cover, the cover plate and the electric push rod are rotatably connected, a furnace body is installed at the bottom of the cover plate, a rotatable mounting seat is installed on the top of the cover plate, a rotating arm is rotatably installed on the inner side of the rotating mounting seat, one end of the rotating arm is connected to a splash cover, a first electric gate valve is installed on the top of the splash cover, an inner top wall of the outer cover is connected to a hydraulic rod, the bottom of the hydraulic rod is connected to a supporting plate, a guide rail is installed on the top of the supporting plate, one end of the guide rail is connected to a second motor, the output shaft of the second motor is connected to a screw rod, a hopper mechanism is slidably installed inside the guide rail, a fixed rod is installed on the side of the inner cover, the side of the fixed rod is connected to a guide groove, and one end of the guide groove is connected to a sand mold injection hopper.
[0005] The beneficial effects of the utility model are as follows: when the device is used, the raw materials to be put in are conveyed through the baffle conveyor belt and put into the feed hopper, the loading amount of the materials in the feed hopper can be monitored by the camera, and after the filling of the materials is completed, the second motor can be controlled to drive the screw rod to rotate, and the slider is driven by the screw rod to move to the top of the splash cover together with the feed hopper, and when the upper docking port at the bottom of the second electric gate valve moves to the top of the lower docking port at the top of the first electric gate valve, the hydraulic rod can be controlled to push the supporting plate together with the feed hopper to move downward, so that the upper docking port is docked with the lower docking port, and the first electric gate valve and the second electric gate valve are controlled to open, and the materials in the feed hopper are discharged. The material is put into the furnace body. After the putting is completed, close the first electric gate valve and the second electric gate valve, and then control the hydraulic rod and the second motor to move the feed hopper back to its original position, and then control the furnace body to power on to melt the material inside. At the same time, use the baffle conveyor belt to convey the subsequent auxiliary materials to the feed hopper. When auxiliary materials need to be added, repeat the above actions to add the auxiliary materials. After the auxiliary materials are added, the next batch of materials can be input into the feed hopper through the baffle conveyor belt. After the molten iron in the furnace body is discharged, the materials can be directly put in again. On the one hand, the function of automatic material feeding is realized, and on the other hand, the interval between the preparation processes of two batches of materials is shortened to improve work efficiency.
[0006] When the material inside the furnace body is completely melted, after the pouring port of the sand mold to be injected with molten iron is aligned with the bottom of the sand mold injection hopper, the electric push rod can be controlled to push the cover plate to rotate and drive the furnace body to tilt, and the molten iron inside the furnace body is injected into the guide groove through the discharge nozzle. The molten iron enters the sand mold injection hopper through the guide groove and is directly injected into the pouring port of the sand mold, which can not only realize the function of automatic pouring, but also improve the safety of the pouring process and avoid splashing. At the same time, the device is provided with a splash-proof cover, which does not need to be opened at ordinary times. At the same time, the setting of the first electric gate valve and the second electric gate valve does not affect the feeding of materials, which effectively avoids injuries to workers when explosions occur during the smelting process and improves operational safety.
[0007] In order to put the material in the feed hopper into the furnace:
[0008] As a further improvement of the above technical solution: the hopper mechanism includes a slider slidably connected to the guide rail, the slider is threadedly connected to the screw rod, one side of the slider is fixed to the feed hopper, and a second electric gate valve is installed at the bottom of the feed hopper.
[0009] The second motor is controlled to drive the screw to rotate, and the screw drives the slider to move toward the top of the splash cover together with the feed hopper. When the upper docking port at the bottom of the second electric gate valve moves above the lower docking port at the top of the first electric gate valve, the hydraulic rod can be controlled to push the supporting plate together with the feed hopper to move downward, so that the upper docking port is docked with the lower docking port, and the first electric gate valve and the second electric gate valve are controlled to open, so that the material in the feed hopper is put into the furnace body.
[0010] In order to put the materials in the hopper into the furnace:
[0011] As a further improvement of the above technical solution: the top of the first electric gate valve is connected to a lower docking port, and the bottom of the second electric gate valve is connected to an upper docking port.
[0012] The lower docking port and the upper docking port can be docked with each other, so that the materials in the feed hopper can be put into the furnace body.
[0013] In order to achieve the output of molten iron:
[0014] As a further improvement of the above technical solution: a discharge port is provided through the top of the cover plate, and the side surface of the discharge port is connected to the discharge nozzle.
[0015] When the furnace body is tilted, the molten iron inside the furnace body is injected into the guide groove through the discharge nozzle to realize the output of the molten iron.
[0016] To monitor the material loading level in the feed hopper:
[0017] As a further improvement of the above technical solution: the top plate of the outer cover is connected to the camera.
[0018] The beneficial effect of this improvement is that the loading amount of the material in the feed hopper can be monitored by the camera.
[0019] To open the splash guard:
[0020] As a further improvement of the above technical solution: one side of the rotating mounting seat is fixed to the first motor, and the rotating arm is connected to the output shaft of the first motor.
[0021] The splash-proof cover can be opened by controlling the first motor to operate and drive the rotating arm to rotate.
[0022] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a schematic diagram of the axonometric structure of the utility model;
[0024] Figure 2 It is an axonometric cutaway schematic diagram of the utility model;
[0025] Figure 3 It is a side cutaway structural schematic diagram of the utility model;
[0026] Figure 4 This is a top view installation diagram of the feed hopper in the utility model;
[0027] Figure 5This is a schematic diagram of the installation structure of the central feed hopper of the utility model;
[0028] Figure 6 It is a schematic diagram of the cutaway structure of the inner cover in the utility model;
[0029] Figure 7 This is a schematic diagram of the structure of the inner cover in the utility model when the splash-proof cover is opened;
[0030] In the figure: 1. outer cover; 2. inner cover; 3. electric push rod; 4. cover plate; 5. furnace body; 6. rotating mounting seat; 7. first motor; 8. rotating arm; 9. splash cover; 10. first electric gate valve; 11. hydraulic rod; 12. supporting plate; 13. guide rail; 14. second motor; 15. screw rod; 16. slider; 17. feed hopper; 18. second electric gate valve; 19. baffle conveyor belt; 20. camera; 21. discharge nozzle; 22. guide groove; 23. sand mold injection hopper; 24. fixing rod. DETAILED DESCRIPTION
[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.
[0032] like Figure 1-7 As shown, a medium-frequency electric furnace for casting manhole covers with automatic feeding and discharging of materials comprises an outer cover 1, an inner cover 2 is installed inside the outer cover 1, an electric push rod 3 is rotatably connected inside the inner cover 2, a cover plate 4 is rotatably installed on the top of the inner cover 2, the cover plate 4 and the electric push rod 3 are rotatably connected, a furnace body 5 is installed on the bottom of the cover plate 4, a rotatable mounting seat 6 is installed on the top of the cover plate 4, a rotating arm 8 is rotatably installed on the inner side of the rotating mounting seat 6, one end of the rotating arm 8 is connected to a splashproof cover 9, and a first rotating arm 8 is installed on the top of the splashproof cover 9. An electric gate valve 10, the inner top wall of the outer cover 1 is connected to the hydraulic rod 11, the bottom of the hydraulic rod 11 is connected to the support plate 12, the top of the support plate 12 is installed with a guide rail 13, one end of the guide rail 13 is connected to the second motor 14, the output shaft of the second motor 14 is connected to the screw 15, the inside of the guide rail 13 is slidably installed with a hopper mechanism, the side of the inner cover 2 is installed with a fixed rod 24, the side of the fixed rod 24 is connected to the guide groove 22, and one end of the guide groove 22 is connected to the sand mold injection hopper 23.
[0033] When the device is used, the raw materials to be put in are conveyed through the baffle conveyor belt 19 and put into the feed hopper 17. The loading amount of the materials in the feed hopper 17 can be monitored by the camera 20. After the filling of the materials is completed, the second motor 14 can be controlled to drive the screw rod 15 to rotate, and the slider 16 is driven by the screw rod 15 to move together with the feed hopper 17 to the top of the splash cover 9. When the upper docking port at the bottom of the second electric gate valve 18 moves to the top of the lower docking port at the top of the first electric gate valve 10, the hydraulic rod 11 can be controlled to push the supporting plate 12 together with the feed hopper 17 to move downward, so that the upper docking port is docked with the lower docking port, and the first electric gate valve 10 and the second electric gate valve 18 are controlled to open, and the materials in the feed hopper 17 are released. The materials are put into the furnace body 5. After the materials are put into the furnace body 5, the first electric gate valve 10 and the second electric gate valve 18 are closed, and the hydraulic rod 11 and the second motor 14 can be controlled to move the feed hopper 17 back to its original position, and the furnace body 5 can be powered on to melt the materials inside. At the same time, the baffle conveyor belt 19 is used to convey the auxiliary materials needed later to the feed hopper 17. When the auxiliary materials need to be added, the above-mentioned actions can be repeated to add the auxiliary materials. After the auxiliary materials are added, the next batch of materials can be input into the feed hopper 17 through the baffle conveyor belt 19. After the molten iron in the furnace body 5 is discharged, the materials can be directly put in again. On the one hand, the function of automatic material feeding is realized, and on the other hand, the interval between the preparation processes of two batches of materials is shortened, thereby improving work efficiency.
[0034] When the material inside the furnace body 5 is completely melted, after the pouring port of the sand mold to be injected with molten iron is aligned with the bottom of the sand mold injection hopper 23, the electric push rod 3 can be controlled to push the cover plate 4 to rotate and drive the furnace body 5 to tilt, and the molten iron inside the furnace body 5 is injected into the guide groove 22 through the discharge nozzle 21. The molten iron enters the sand mold injection hopper 23 through the guide groove 22 and is directly injected into the pouring port of the sand mold, which can not only realize the function of automatic pouring, but also improve the safety of the pouring process and avoid splashing. At the same time, the device is provided with a splash-proof cover 9, which does not need to be opened at ordinary times. At the same time, the setting of the first electric gate valve 10 and the second electric gate valve 18 does not affect the feeding of materials, effectively avoiding injuries to workers when explosions occur during the smelting process, and improving operational safety.
[0035] The hopper mechanism includes a slider 16 slidably connected to the guide rail 13 , the slider 16 is threadedly connected to the screw rod 15 , one side of the slider 16 is fixed to the feed hopper 17 , and a second electric gate valve 18 is installed at the bottom of the feed hopper 17 .
[0036] The second motor 14 is controlled to drive the screw rod 15 to rotate, and the screw rod 15 drives the slider 16 to move together with the feed hopper 17 to the top of the splash cover 9. When the upper docking port at the bottom of the second electric gate valve 18 moves above the lower docking port at the top of the first electric gate valve 10, the hydraulic rod 11 can be controlled to push the supporting plate 12 together with the feed hopper 17 to move downward. After the upper docking port is docked with the lower docking port, the first electric gate valve 10 and the second electric gate valve 18 are controlled to open, and the material in the feed hopper 17 is put into the furnace body 5.
[0037] The top of the first electric gate valve 10 is connected to a lower docking port, and the bottom of the second electric gate valve 18 is connected to an upper docking port.
[0038] The lower docking port and the upper docking port can be docked with each other, so that the material in the feed hopper 17 can be put into the furnace body 5.
[0039] A discharge port is formed through the top of the cover plate 4 , and a side surface of the discharge port is connected to the discharge nozzle 21 .
[0040] When the furnace body 5 is tilted, the molten iron inside the furnace body 5 is injected into the guide groove 22 through the discharge nozzle 21 to realize the discharge of the molten iron.
[0041] The top plate of the outer cover 1 is connected to the camera 20 .
[0042] The loading amount of the material in the feed hopper 17 can be monitored by the camera 20 .
[0043] One side of the rotating mounting seat 6 is fixed to the first motor 7 , and the rotating arm 8 is connected to the output shaft of the first motor 7 .
[0044] The splash-proof cover 9 can be opened by controlling the first motor 7 to operate and drive the rotating arm 8 to rotate.
[0045] The working principle and use process of the utility model: when the device is used, the raw materials to be put in are conveyed through the baffle conveyor belt 19 and put into the feed hopper 17. The loading amount of the materials in the feed hopper 17 can be monitored by the camera 20. After the filling of the materials is completed, the second motor 14 can be controlled to drive the screw rod 15 to rotate, and the slider 16 is driven by the screw rod 15 to move together with the feed hopper 17 to the top of the splash cover 9. When the upper docking port at the bottom of the second electric gate valve 18 moves to the top of the lower docking port at the top of the first electric gate valve 10, the hydraulic rod 11 can be controlled to push the supporting plate 12 to connect At the same time, the feed hopper 17 moves downward to dock the upper and lower docking interfaces, and the first electric gate valve 10 and the second electric gate valve 18 are controlled to open, and the materials in the feed hopper 17 are put into the furnace body 5. After the feeding is completed, the first electric gate valve 10 and the second electric gate valve 18 are closed, and the hydraulic rod 11 and the second motor 14 can be controlled to move the feed hopper 17 back to its original position, and the furnace body 5 can be powered on to melt the materials inside. At the same time, the baffle conveyor belt 19 is used to convey the auxiliary materials needed later to the feed hopper 17. When the auxiliary materials need to be added, the above actions can be repeated to add the auxiliary materials. After the addition of auxiliary materials is completed, the next batch of materials can be input into the feed hopper 17 through the baffle conveyor belt 19. After the molten iron in the furnace body 5 is discharged, the materials can be directly added again. On the one hand, the function of automatically adding materials is realized, and on the other hand, the interval between the preparation processes of two batches of materials is shortened to improve work efficiency. When the materials inside the furnace body 5 are completely melted, the pouring port of the sand mold to be injected with molten iron is aligned with the bottom of the sand mold injection hopper 23, the electric push rod 3 can be controlled to push the cover plate 4 to rotate and drive the furnace body 5 to tilt, and the molten iron inside the furnace body 5 is injected into the guide groove 22 through the discharge nozzle 21. The molten iron enters the sand mold injection hopper 23 through the guide groove 22 and is directly injected into the pouring port of the sand mold, which can not only realize the function of automatic pouring, but also improve the safety of the pouring process and avoid splashing. At the same time, the device is provided with a splash-proof cover 9, which does not need to be opened at ordinary times. At the same time, the setting of the first electric gate valve 10 and the second electric gate valve 18 does not affect the feeding of materials, effectively avoiding injuries to workers when explosions occur during the smelting process, and improving operational safety. When it is necessary to open the splash-proof cover 9, the first motor 7 is controlled to drive the rotating arm 8 to rotate to open the splash-proof cover 9.
[0046] The circuits, electronic components and modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by this application does not involve improvements to software and methods.
[0047] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.
[0048] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principle of the utility model, they can make several improvements, embellishments or changes, and can also combine the above technical features in an appropriate manner; these improvements, embellishments, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.
Claims
1. A medium frequency electric furnace for automatic feeding and discharging of casting manhole covers. Features: The invention comprises an outer cover (1), an inner cover (2) is installed inside the outer cover (1), an electric push rod (3) is rotatably connected inside the inner cover (2), a cover plate (4) is rotatably installed on the top of the inner cover (2), the cover plate (4) and the electric push rod (3) are rotatably connected, a furnace body (5) is installed on the bottom of the cover plate (4), a rotatable mounting seat (6) is installed on the top of the cover plate (4), a rotating arm (8) is rotatably installed on the inner side of the rotatable mounting seat (6), one end of the rotating arm (8) is connected to a splashproof cover (9), and a first electric gate valve (10) is installed on the top of the splashproof cover (9) The inner top wall of the outer cover (1) is connected to the hydraulic rod (11), the bottom of the hydraulic rod (11) is connected to the support plate (12), the top of the support plate (12) is equipped with a guide rail (13), one end of the guide rail (13) is connected to the second motor (14), the output shaft of the second motor (14) is connected to the screw rod (15), a hopper mechanism is slidably installed inside the guide rail (13), a fixing rod (24) is installed on the side of the inner cover (2), the side of the fixing rod (24) is connected to the guide groove (22), and one end of the guide groove (22) is connected to the sand mold injection hopper (23).
2. According to claim 1, a medium frequency electric furnace for automatically feeding and discharging materials for casting manhole covers, Features: The hopper mechanism comprises a slider (16) slidably connected to the guide rail (13), the slider (16) being threadedly connected to the screw rod (15), one side of the slider (16) being fixed to the feed hopper (17), and a second electric gate valve (18) being installed at the bottom of the feed hopper (17).
3. According to claim 2, a medium frequency electric furnace for automatically feeding and discharging materials for casting manhole covers, Features: The top of the first electric gate valve (10) is connected to a lower docking port, and the bottom of the second electric gate valve (18) is connected to an upper docking port.
4. According to claim 1, a medium frequency electric furnace for automatically feeding and discharging materials for casting manhole covers, Features: A discharge port is provided through the top of the cover plate (4), and the side of the discharge port is connected to the discharge nozzle (21).
5. According to claim 1, a medium frequency electric furnace for automatically feeding and discharging materials for casting manhole covers, Features: The top plate of the outer cover (1) is connected to the camera (20).
6. A medium frequency electric furnace for automatically feeding and discharging materials for casting manhole covers according to claim 1, Features: One side of the rotating mounting seat (6) is fixed to the first motor (7), and the rotating arm (8) is connected to the output shaft of the first motor (7).