Automatic loading and unloading system and method for sealed kiln

Abstract

The invention belongs to the technical field of kiln loading and unloading, and particularly relates to a sealed kiln automatic loading and unloading system and method.The sealed kiln automatic loading and unloading system comprises a sealed chamber, a sweeping mechanism, a feeding mechanism, a punching mechanism and an unloading robot, the punching mechanism and the loading robot are both arranged in the sealed chamber, and the sealed chamber is filled with inert gas; the sweeping mechanism comprises a sweeping outer cover and a sweeping assembly, one side of the sweeping outer cover is communicated and sealed with the sealing chamber, an overhaul chamber is arranged on the other side of the sweeping outer cover, a gate valve is arranged between the overhaul chamber and the sweeping outer cover in a sealing mode, a sealing plate is detachably arranged outside the overhaul chamber, and the sweeping assembly is arranged in the overhaul chamber; the sweeping assembly enters the sweeping outer cover through the gate valve. An oxygen-free environment can be kept in the whole loading and unloading process, it can be guaranteed that a large amount of oxygen cannot enter the sealing chamber in the cleaning assembly replacing process, and materials in the sealing chamber are prevented from being affected after the cleaning assembly is replaced.

Description

Technical Field

[0001] This invention belongs to the field of kiln loading and unloading technology, specifically relating to an automatic loading and unloading system and method for sealed kilns. Background Technology

[0002] In kiln production, crucibles need to be fed, flattened, punched, and stacked before being transported to the kiln for firing. After firing, the crucibles are transported out of the kiln, and the material is then poured out and fed back in. However, some materials cannot come into contact with oxygen and must not be exposed to oxygen throughout the entire kiln production process. In other words, the entire process of feeding, processing, transporting, firing, and pouring must be carried out in an oxygen-free environment.

[0003] Chinese invention patent application CN202410757119.7 discloses an automated kiln loading and unloading production line, including a kiln, a conveying mechanism, a crucible buffer roller, a feeding unit, and a loading unit. The conveying mechanism is positioned at the inlet and outlet of the kiln, respectively. The crucible buffer roller is located on one side of the conveying mechanism. The feeding unit is located on the side of the conveying mechanism near the outlet of the kiln, and the loading unit is located on the side of the crucible buffer roller near the inlet of the kiln. The feeding unit includes a destacking mechanism and a feeding robot. The loading unit includes a feeding device, a scraping device, and a punching device sequentially arranged on the crucible buffer roller. A stacking robot is located near the inlet of the kiln in the loading unit. While this invention can achieve automated production and improve production efficiency, the crucibles are completely exposed to air during the conveying process, making it unsuitable for crucible production in an oxygen-free environment.

[0004] Chinese invention patent application number 201510355457.9 discloses an electric furnace device under inert atmosphere protection. Although it involves a sealed chamber, which can prevent the oxidation of equipment and products under inert gas protection, it cannot realize kiln production with cyclic loading and unloading. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide an automatic loading and unloading system and method for sealed kilns, in which the entire loading and unloading process is carried out in an oxygen-free environment, meeting the needs of material production.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: an automatic loading and unloading system for a sealed kiln, comprising a sealed chamber, a cleaning mechanism, a feeding mechanism, and a punching mechanism. A conveying mechanism is arranged along the length of the sealed chamber, and a loading robot is arranged between the feeding mechanism and the punching mechanism. The unloading robot, the punching mechanism, and the loading robot are all arranged in the sealed chamber. The sealed chamber is filled with inert gas. The feeding mechanism is sealed and connected to the outside of the sealed chamber and is arranged close to the loading robot. The feeding port of the feeding mechanism is connected to the sealed chamber. The cleaning mechanism includes a cleaning cover and a cleaning assembly. One side of the cleaning cover is sealed to a sealed chamber via a cleaning transfer window. A maintenance chamber is provided on the other side of the cleaning cover. A gate valve is sealed between the lower side of the maintenance chamber and the cleaning cover. A sealing plate is detachably provided on the outside of the maintenance chamber. The cleaning assembly is located in the maintenance chamber. When the gate valve is opened, the cleaning assembly enters the cleaning cover through the gate valve.

[0007] Preferably, a residual material detection mechanism is provided between the cleaning mechanism and the feeding mechanism. The residual material detection mechanism includes a mounting frame and a detection plate. The mounting frame is fixedly installed on the conveying mechanism. The detection plate is mounted on the mounting frame in a lifting and lowering manner through a lifting drive component. The detection plate is slidably connected to the lifting drive component in the vertical direction. A displacement detection component for detecting the detection plate is also provided on the lifting drive component.

[0008] Preferably, a lifting module is vertically installed on one side of the maintenance chamber, a cleaning assembly is connected to the lifting module, and a gate valve is installed on one side of the lifting module.

[0009] Preferably, a waste bin is provided on the lower side of the cleaning cover, a collection box is connected to the lower end of the waste bin, and a butterfly valve is provided between the waste bin and the collection box.

[0010] Preferably, the cleaning mechanism is connected to a filtering mechanism, which includes a filter cover, a fan, and a connecting duct. The filter cover is fixedly and sealed to the cleaning cover. The fan is installed inside the filter cover, and the fan inlet is connected to the cleaning cover. A filter element is installed at the fan inlet. One end of the connecting duct is connected to the filter cover, and the other end of the connecting duct is connected to the sealed chamber.

[0011] Preferably, the feeding mechanism includes a feeding scale, a hopper, and a conveying pipe. The feeding scale is fixedly installed outside the sealed chamber. One end of the conveying pipe is connected to the lower end of the hopper, and the other end of the conveying pipe is the feeding port. A conveying assembly is installed inside the conveying pipe. The hopper and the conveying pipe are placed on the feeding scale, and the other end of the conveying pipe is sealed to the sealed chamber and can float.

[0012] Preferably, the material conveying assembly includes a material conveying motor and an auger, with the auger disposed inside the material conveying pipe and the material conveying motor disposed at one end of the material conveying pipe and connected to the auger.

[0013] Preferably, a conveying chamber is sealed and connected to the sealing chamber near the feeding scale. A connecting interface is provided on the lower side of the conveying chamber, which is connected to the sealing chamber. The other end of the conveying pipe extends into the conveying chamber, and the feeding port of the conveying pipe is connected to the connecting interface through a flexible hose.

[0014] Preferably, a screen is movably provided below the feeding port of the feeding mechanism.

[0015] Preferably, a support frame is fixedly installed on one side of the feeding port, a leveling cylinder is installed on the support frame, a movable frame is fixedly installed at the output end of the leveling cylinder, the screen is installed on the movable frame, and a feeding port is opened on the movable frame. The feeding port moves to below the feeding port and then feeds the material.

[0016] Preferably, the punching mechanism includes a receiving frame, a column, and a punching component. The column is fixedly mounted on the receiving frame, and a support plate is connected to the upper part of the column. The two ends of the rotating shaft are rotatably connected to the support plate, and the upper side of the punching component is fixedly connected to the rotating shaft.

[0017] Preferably, a scraper is also horizontally and fixedly connected to the column.

[0018] Preferably, the sealed interior is filled with nitrogen gas.

[0019] An automatic loading and unloading method for a sealed kiln, utilizing the aforementioned automatic loading and unloading system for sealed kilns, includes the following steps: S1. The unloading robot clamps the empty crucible to the cleaning mechanism, cleans the crucible with the cleaning component, and after cleaning, the unloading robot clamps the crucible to the conveying mechanism. S2. The conveying mechanism transports the crucible to the residual material detection mechanism to check whether there is still residual material adhering to the crucible. If the residual material detection mechanism detects that there is no residual material in the crucible, the loading robot continues to hold the crucible to the next process. If the residual material detection mechanism detects that there is residual material in the crucible, the loading robot holds the crucible and moves it to one side for unified processing. S3. The loading robot clamps the crucible and loads it below the feeding port of the feeding mechanism. After loading, the loading robot moves the crucible to the punching mechanism for punching. After punching, the crucible is moved to the conveying mechanism. S4. The loading robot stacks the crucibles that have been loaded and punched in sequence. After stacking, the conveying mechanism continues to transport them to the kiln for firing. The conveying mechanism maintains an oxygen-free environment during the conveying process. S5. The crucibles that have been fired in the kiln are transported to the sealed chamber by the conveying mechanism. The conveying mechanism maintains an oxygen-free environment during the conveying process. The conveying mechanism continues to transport the crucibles that have been fired in the kiln to the unloading robot. S6. The unloading robot disassembles the fired crucibles, removes them from the conveying mechanism, and dumps the material. S7. The unloading robot clamps the empty crucible after unloading to the cleaning mechanism, repeating the above steps to achieve automatic loading and unloading.

[0020] Compared with existing technologies, the above technical solution has the following beneficial effects: 1. The unloading robot, feeding mechanism, drilling mechanism, and loading robot of this invention are all housed in a sealed chamber filled with inert gas. The feeding port of the feeding mechanism is connected to the sealed chamber to ensure that the crucible does not come into contact with oxygen during loading and unloading. After the crucible is emptied, residual material may remain, so a cleaning mechanism is needed to clean the crucible before adding more material. The crucible is cleaned using a cleaning assembly, but the cleaning assembly needs to be replaced periodically. Therefore, this invention provides a maintenance chamber on the other side of the cleaning cover. A sealing plate is detachably installed on the outside of the maintenance chamber, and a sealing structure is formed between the lower side of the maintenance chamber and the cleaning cover. The invention features a gate valve that allows the cleaning assembly to move between the cleaning hood and the maintenance chamber. When the cleaning assembly needs to be replaced, it is first moved to the maintenance chamber, the gate valve is closed to isolate the maintenance chamber from the sealing chamber, the sealing plate is then removed, and the cleaning assembly is replaced inside the maintenance chamber. After replacement, the sealing plate is installed, and the gate valve is opened to move the cleaning assembly back into the cleaning hood to clean the crucible. This invention not only ensures an oxygen-free environment throughout the loading and unloading process but also prevents a large amount of oxygen from entering the sealing chamber during the replacement of the cleaning assembly, thus preventing the replacement of the cleaning assembly from affecting the materials inside the sealing chamber.

[0021] 2. A waste bin is located on the lower side of the cleaning cover. The waste brushed off by the cleaning component falls into the waste bin. When the butterfly valve is opened, the waste in the waste bin falls into the collection box. When the butterfly valve is closed, the waste in the collection box is processed.

[0022] 3. A filter mechanism is installed on the upper side of the cleaning mechanism. The filter mechanism draws in air when the cleaning mechanism is cleaning, and the air is filtered by the filter mechanism and then returned to the sealed chamber, thus filtering the dust in the sealed chamber.

[0023] 4. The feeding mechanism includes a feeding scale, a hopper, and a conveying pipe. The hopper and conveying pipe are placed on the feeding scale for weighing. To measure the weight of the hopper and conveying pipe, the hopper and conveying pipe must be floating. Therefore, the other end of the conveying pipe is connected to the sealed chamber in a sealed and floating manner.

[0024] 5. A screen is movably installed below the feeding port of the feeding mechanism, and moving the screen allows the material to fall evenly into the crucible.

[0025] 6. Since the robot's movements have a certain margin of error and the shape of the material pile on each crucible is different, in order to prevent positional deviation between the material and the punching part during punching, the upper side of the punching part is fixedly connected to the rotating shaft. The swinging of the punching part allows for a certain deviation in the position of the crucible. Attached Figure Description

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

[0027] Figure 2This is a front view of the internal structure of the present invention.

[0028] Figure 3 This is a schematic diagram of the internal structure of the present invention.

[0029] Figure 4 This is a schematic diagram of the cleaning and filtering mechanisms.

[0030] Figure 5 This is a schematic diagram of the other side of the cleaning and filtering mechanisms.

[0031] Figure 6 This is a schematic diagram of the cleaning mechanism after the sealing plate has been removed.

[0032] Figure 7 This is a schematic diagram of the cleaning component.

[0033] Figure 8 This is a schematic diagram of the internal structure of the cleaning and filtering mechanisms.

[0034] Figure 9 This is a schematic diagram of the structure of a partial residual material detection mechanism.

[0035] Figure 10 This is a schematic diagram of the other side of the residual material detection mechanism.

[0036] Figure 11 This is a schematic diagram of the feeding mechanism and the leveling mechanism.

[0037] Figure 12 for Figure 11 Enlarged view of point A in the middle.

[0038] Figure 13 This is a schematic diagram of the material loosening mechanism.

[0039] Figure 14 for Figure 13 Enlarged view of point B in the middle.

[0040] The components include: 1. Nitrogen chamber; 2. Cleaning mechanism; 3. Filtration mechanism; 4. Feeding mechanism; 5. Unloading robot; 6. Drilling mechanism; 7. Leveling mechanism; 8. Conveying mechanism; 9. Loading robot; 10. Fixing frame; 11. Cleaning cover; 12. Cleaning brush; 13. Waste bin; 14. Butterfly valve; 15. Collection box; 16. Guide plate; 17. Sealing plate; 18. Slide valve; 19. Maintenance chamber; 20. Cleaning assembly; 21. Cleaning motor; 22. Drive gear; 23. Cleaning gear; 24. Cleaning shaft; 25. Lifting module; 26. Filter cover; 27. Fan; 28. Filter bag; 29. ​​Connecting duct. 30. Feeding scale; 31. Hopper; 32. Conveying motor; 33. Conveying pipe; 34. Conveying chamber; 35. Support frame; 36. Leveling cylinder; 37. Fixing plate; 38. Connecting interface; 39. Moving frame; 40. Screen; 41. Discharge port; 42. Placement rack; 43. Receiving rack; 44. Column; 45. Drilling component; 46. Scraper; 47. Support plate; 48. Rotating shaft; 49. Crucible; 50. Residual material detection mechanism; 51. Detection plate; 52. Mounting plate; 53. Detection plate; 54. Detection hole; 55. Guide column; 56. Linear bearing; 57. Top block; 58. Moving shaft; 59. Return spring. Detailed Implementation

[0041] Figures 1-14 This is the preferred embodiment of the present invention, which is described below in conjunction with the accompanying drawings. Figures 1-14 The present invention will be further described below.

[0042] like Figures 1-3As shown, an automatic loading and unloading system for a sealed kiln according to the present invention includes a sealed chamber, a cleaning mechanism 2, a feeding mechanism 4, and a drilling mechanism 6. A conveying mechanism 8 is arranged along the length of the sealed chamber. The cleaning mechanism 2, the feeding mechanism 4, and the drilling mechanism 6 are all located on one side of the conveying mechanism 8. A unloading robot 5 is located on one side of the cleaning mechanism 2. A loading robot 9 is located between the feeding mechanism 4 and the drilling mechanism 6. An empty crucible 49 is conveyed to the feeding mechanism 4 on the conveying mechanism 8, and then the loading robot 9 clamps the crucible 49 and feeds it to the feeding mechanism 4. After feeding is completed, the loading robot 9... The material loading robot 9 continues to transfer the crucible 49 to the punching mechanism 6 to punch holes and loosen the material. Finally, the material loading robot 9 puts the crucible 49 back onto the conveying mechanism 8. The material loading robot 9 stacks the crucible 49 after it has been loaded and punched. The conveying mechanism 8 then transports the stacked crucible 49 into the kiln for firing. After firing, the crucible 49 is transported to the unloading robot 5. The unloading robot 5 clamps the crucible 49, unpacks it, pours out the material inside, and then moves the crucible 49 to the cleaning mechanism 2 for cleaning. After cleaning, the unloading robot 5 puts the empty crucible 49 back onto the conveying mechanism 8. Since the material cannot come into contact with oxygen, the entire conveying mechanism 8 is covered by a sealed cover, and the kiln is also an oxygen-free environment. The sealed cover of the conveying mechanism 8 is sealed and connected to the sealed chamber, which is filled with inert gas. In this embodiment, nitrogen is introduced into the sealed chamber, so the sealed chamber is also a nitrogen chamber 1. Nitrogen is also introduced into the sealed cover and the kiln. The unloading robot 5, the drilling mechanism 6, and the loading robot 9 are all set in the nitrogen chamber 1.

[0043] like Figures 4-7As shown, the cleaning mechanism 2 is sealed and connected to the outside of the nitrogen chamber 1 and located near the unloading robot 5 via a cleaning transfer window. The cleaning mechanism 2 includes a fixed frame 10, a cleaning cover 11, and a cleaning assembly 20. Since the cleaning brush 12 of the cleaning mechanism 2 needs to be replaced periodically, the cleaning mechanism 2 is located outside the nitrogen chamber 1. The cleaning cover 11 is fixedly mounted on the fixed frame 10. Both the fixed frame 10 and the cleaning cover 11 are located outside the nitrogen chamber 1. One side of the cleaning cover 11 is connected to the nitrogen chamber 1 via a cleaning transfer window and is sealed. The cleaning assembly 20 is located inside the cleaning cover 11. The unloading robot 5 clamps the crucible 49 into the cleaning cover 11 for cleaning. A maintenance chamber 19 is located on the other side of the cleaning cover 11. The maintenance chamber 19 is an independent space that opens into the interior of the cleaning cover 11. A gate valve 1 is sealed between the lower side of the maintenance chamber 19 and the cleaning cover 11. 8. A sealing plate 17 is detachably installed on the outside of the maintenance chamber 19. After the slide valve 18 is opened, the cleaning component 20 enters the cleaning cover 11 through the slide valve 18. The unloading robot 5 clamps the crucible 49 into the cleaning cover 11 and cleans it through the cleaning component 20. When the production line is running normally, the cleaning component 20 is inside the cleaning cover 11, the slide valve 18 is opened, and the cleaning cover 11 and the maintenance chamber 19 are isolated. The sealing plate 17 is installed on one side of the maintenance chamber 19. When the cleaning component 20 needs to be replaced, the slide valve 18 is opened first, the cleaning component 20 is moved into the maintenance chamber 19, the slide valve 18 is closed, the sealing plate 17 is opened to replace the cleaning component 20. After the replacement is completed, the sealing plate 17 is installed first, then the slide valve 18 is opened again, the cleaning component 20 is moved back into the cleaning cover 11, and then the slide valve 18 is closed. In this embodiment, the slide valve 18 can be a manual slide valve.

[0044] Specifically, a lifting module 25 is vertically arranged on one side of the maintenance chamber 19. The cleaning component 20 includes a cleaning brush 12 and a rotation drive. The cleaning brush 12 is vertically arranged and connected to a cleaning shaft 24. The upper end of the cleaning shaft 24 is connected to the rotation drive, which is connected to the lifting module 25. In this embodiment, the rotation drive is a cleaning motor 21. The cleaning motor 21 is connected to the lifting module 25 through a lifting frame. A gate valve 18 is arranged on one side of the lifting module 25. In this embodiment, four cleaning brushes 12 clean one crucible 49 simultaneously. A drive gear 22 is connected to the output end of the cleaning motor 21. The upper end of the cleaning shaft 24 is rotatably mounted on the lifting frame. A cleaning gear 23 is connected to the upper end of each cleaning shaft 24. The cleaning gear 23 and the drive gear 22 mesh, so the output shaft of the cleaning motor 21 rotates, causing the four cleaning brushes 12 to rotate synchronously. The cleaning motor 21, gears, and cleaning brush 12 constitute the cleaning assembly 20. When replacing the cleaning brush 12, the cleaning assembly 20 rises along the lifting module 25 into the maintenance chamber 19, and the slide valve 18 closes. After replacement, the cleaning assembly 20 descends along the lifting module 25 back into the cleaning cover 11. Although a small amount of oxygen will be present in the maintenance chamber 19 during the maintenance and replacement process, this small amount of oxygen is negligible for the nitrogen chamber 1 and will not affect the oxygen content or the materials within the nitrogen chamber 1.

[0045] A waste bin 13 is provided on the lower side of the cleaning cover 11. A guide plate 16 is also provided on the lower side of the connection port of the cleaning cover 11 to the nitrogen chamber 1. The end of the guide plate 16 is inclined upward so that the material brushed down by the cleaning brush 12 slides down the guide plate 16 into the waste bin 13. A collection box 15 is connected to the lower end of the waste bin 13. A butterfly valve 14 is provided between the waste bin 13 and the collection box 15. The butterfly valve 14 can be a manual butterfly valve. The collection box 15 is a drawer type. Under normal use, the butterfly valve 14 is open and the waste in the waste bin 13 can fall directly into the collection box 15. After the collection box 15 is full, the butterfly valve 14 is closed and the waste in the collection box 15 is cleaned. After cleaning, the collection box 15 is reinstalled and the butterfly valve 14 is opened again.

[0046] like Figure 8As shown, a filter mechanism 3 is connected to the cleaning mechanism 2. The filter mechanism 3 draws air during the cleaning of the cleaning mechanism 2. The air is filtered by the filter mechanism 3 and then returned to the nitrogen chamber 1 to filter the dust in the nitrogen chamber 1. The filter mechanism 3 includes a filter cover 26, a fan 27 and a connecting duct 29. The filter cover 26 is fixedly and sealed to the upper side of the cleaning cover 11. The fan 27 is set inside the filter cover 26. The air inlet of the fan 27 is connected to the cleaning cover 11. A filter element is set at the air inlet of the fan 27. In this embodiment, the filter element is several cloth bags 28. One end of the connecting duct 29 is connected to the filter cover 26, and the other end of the connecting duct 29 is connected back to the nitrogen chamber 1. When the cleaning brush 12 cleans the crucible 49, the fan 27 draws nitrogen containing waste dust from the cleaning cover 11. The nitrogen containing waste dust is filtered by the cloth bags 28 and then sent back to the nitrogen chamber 1.

[0047] A residual material detection mechanism 50 is set between the cleaning mechanism 2 and the feeding mechanism 4. The residual material detection mechanism 50 is set on the conveying mechanism 8. After being cleaned by the cleaning mechanism 2, the crucible 49 is clamped by the unloading robot 5 and then conveyed to the conveying mechanism 8 to continue to be conveyed to the residual material detection mechanism 50 for residual material detection. The crucible 49 that passes the detection is clamped by the loading robot 9 and then loaded. The crucible 49 that fails the detection is clamped by the loading robot 9 to one side for unified processing. The residual material detection mechanism 50 includes a mounting frame and a detection plate 51. The mounting frame is fixedly installed on the conveying mechanism 8. The detection plate 51 is slidably mounted on the mounting frame via a lifting drive component. In this embodiment, the lifting drive component is a lifting cylinder. The detection plate 51 is slidably connected to the lifting cylinder in the vertical direction. A displacement detection component for detecting the detection plate 51 is also provided on the lifting cylinder. After the crucible 49 moves to the lower side of the detection plate 51, the lifting cylinder drives the detection plate 51 to descend. The detection plate 51 enters the crucible 49. If there is residual material in the crucible 49, the residual material will block the descent of the detection plate 51, causing the detection plate 51 to slide upward along the lifting cylinder. The displacement detection component then detects the movement of the detection plate 51. If there is no residual material in the crucible 49, the detection plate 51 descends to the bottom of the crucible 49 with the output end of the lifting cylinder.

[0048] Specifically, such as Figures 9-10As shown, a mounting plate 52 is fixedly installed at the output end of the lifting cylinder. Two vertically arranged moving shafts 58 are connected to the upper side of the detection plate 51. The lower end of the moving shaft 58 is fixedly connected to the detection plate 51, and the other end of the moving shaft 58 is slidably connected to the mounting plate 52. A top block 57 is fixedly installed at the upper end of the moving shaft 58. The top block 57 abuts against the upper side of the mounting plate 52 to prevent the moving shaft 58 from sliding down and falling off the mounting plate 52. If there is residual material in the crucible 49, the residual material will block the detection plate 51 and push the detection plate 51 upward. A displacement detection element is fixedly installed on the mounting plate 52. If the displacement detection element detects the movement of the detection plate 51, it means that there is residual material stuck in the crucible 49. After the detection is completed, the lifting cylinder drives the detection plate 51 to rise and leave the crucible 49. The detection plate 51 is reset under the action of gravity. In this embodiment, in order to ensure that the detection disk 51 can be reset, a reset spring 59 is sleeved on the outside of the moving shaft 58. The reset spring 59 is located between the detection disk 51 and the mounting plate 52. When there is residual material in the crucible 49, the detection disk 51 will rise and compress the reset spring 59. After the detection disk 51 leaves the crucible 49, the elastic force of the reset spring 59 pushes the detection disk 51 to reset.

[0049] To ensure smooth movement of the detection disk 51, a guide post 55 is connected to the detection disk 51 in this embodiment. One end of the guide post 55 is fixedly connected to the middle of the detection disk 51, and the guide post 55 is arranged parallel to the moving shaft 58. A linear bearing 56 is correspondingly arranged on the mounting plate 52, and the other end of the guide post 55 slides through the linear bearing 56. When the detection disk 51 moves, the guide post 55 moves linearly along the linear bearing 56. A detection plate 53 is fixedly arranged on the mounting plate 52. In this embodiment, the displacement detection element is a proximity switch, which is fixedly arranged on the detection plate 53. The detection plate 53 is located on one side of the linear bearing 56, and a detection hole 54 is opened on the detection plate 53. The proximity switch detects the movement of the guide post 55 through the detection hole 54, making the detection of the guide post 55 displacement more stable and accurate.

[0050] like Figure 11As shown, after the remaining material in crucible 49 is checked, the loading robot 9 moves the qualified crucible 49 to the feeding mechanism 4 for loading. The feeding mechanism 4 includes a feeding scale 30, a hopper 31, and a conveying pipe 33. The feeding scale 30 is fixedly installed outside the nitrogen chamber 1. One end of the conveying pipe 33 is connected to the lower end of the hopper 31, and the other end of the conveying pipe 33 is the feeding port. A conveying assembly is installed inside the conveying pipe 33. The hopper 31 and the conveying pipe 33 are placed on the feeding scale 30, and the other end of the conveying pipe 33... It is sealed to the nitrogen chamber 1, but the weight of the hopper 31 and the conveying pipe 33 needs to be measured. Therefore, the hopper 31 and the conveying pipe 33 must be floating. Thus, the other end of the conveying pipe 33 is floatingly connected to the nitrogen chamber 1. The hopper accurately feeds material into the hopper 31. The feeding scale 30 weighs the hopper and the conveying pipe 33 together each time to obtain the weight of the material falling each time. The hopper and the hopper 31 also need to be floatingly connected. Therefore, the hopper and the hopper 31 are connected by a hose.

[0051] Specifically, the material conveying assembly includes a material conveying motor 32 and an auger. The auger is installed inside the material conveying pipe 33, and the material conveying motor 32 is located at one end of the material conveying pipe 33 and connected to the auger. After the material falls into the material conveying pipe 33, the material conveying motor 32 drives the auger to rotate, conveying the material to the end of the material conveying pipe 33. A material conveying chamber 34 is sealed and connected to the nitrogen chamber 1 near the feeding scale 30. A connection interface 38 is opened on the lower side of the material conveying chamber 34, which is connected to the nitrogen chamber 1. The other end of the material conveying pipe 33 extends into the material conveying chamber 34. The feeding port of the material conveying pipe 33 is connected to the connection interface 38 through a hose, so the material conveying pipe 33 can float. The material conveyed by the material conveying pipe 33 falls from the connection interface 38, and the loading robot 9 moves the crucible 49 to the bottom of the connection interface 38 to receive the material.

[0052] like Figure 12As shown, since the material falling directly from the interface 38 will accumulate in the crucible 49, a leveling mechanism 7 is provided on one side of the interface 38. The leveling mechanism 7 disperses the material during its fall, preventing it from accumulating in the crucible 49. The leveling mechanism 7 includes a support frame 35, a leveling cylinder 36, and a screen 40. The screen 40 is movably mounted below the feeding port of the feeding mechanism 4, with its center protruding upwards to disperse the material. The support frame 35 is fixedly mounted on one side of the interface 38, and the leveling cylinder 36 is mounted on the support frame 35. A movable frame 39 is fixedly mounted on the output end of the leveling cylinder 36. A fixed plate 37 is fixedly mounted on the lower side of the interface 38, and the movable frame 39 is slidably mounted on the fixed plate 37. On the lower side, sliding grooves are provided at both ends of the lower side of the fixed plate 37. The moving frame 39 is slidably disposed in the sliding grooves. A placement plate is provided on the lower side of the moving frame 39. The screen 40 is fixed on the placement plate of the moving frame 39. A feeding port 41 is provided on the moving frame 39. After the feeding port 41 moves to below the interface 38, material is fed. During the feeding process, the leveling cylinder 36 drives the screen 40 to move slightly. When no material is being fed, the feeding port 41 and the interface 38 are staggered to block the interface 38 and prevent material from falling. A placement rack 42 is also provided on the support frame 35. The placement rack 42 is located below the screen 40 and directly below the interface 38. The loading robot 9 moves the empty crucible 49 to the placement rack 42 and then feeds material.

[0053] like Figures 13-14 As shown, the drilling mechanism 6 includes a receiving frame 43, a column 44, and a drilling component 45. The upper side of the receiving frame 43 is a receiving plate to catch the material falling during the drilling and loosening process. The column 44 is fixedly mounted on the receiving frame 43. A support plate 47 is connected to the upper part of the column 44. The support plate 47 is horizontally positioned, and short plates protrude to one side at both ends of the support plate 47. The two ends of the rotating shaft 48 are rotatably connected to the two short plates of the support plate 47 via bearings. The upper side of the drilling component 45 is fixedly connected to the rotating shaft 48, and the lower side of the drilling component 45... Several punching posts are provided. Due to the inherent error in the movement of the loading robot 9 and the different shapes of the material piles on each crucible 49, the upper side of the punching component 45 is fixedly connected to the rotating shaft 48 to prevent positional deviation between the material and the punching component 45 during punching. The oscillation of the punching component 45 allows for a certain degree of positional deviation of the crucible 49. Even if the crucible 49 is not directly below the punching component 45, the punching component 45 will oscillate to adjust its position and perform punching when the loading robot 9 moves the crucible 49 upward to punch. A scraper plate 46 is also horizontally and fixedly connected to the column 44. The scraper plate 46 is positioned below the punching component 45. The loading robot 9 moves the crucible 49 to scrape under the scraper plate 46, leveling the upper end of the material.

[0054] In this invention, the wiring of each mechanism needs to be led out from the sealed nitrogen chamber 1. A U-shaped connector is set up, with the two ends of the connector located inside the nitrogen chamber 1 and outside the chamber, respectively. The bottom of the connector is filled with sealing filler to seal it, and the wiring can be passed through the connector.

[0055] An automatic loading and unloading method for a sealed kiln according to the present invention includes the following steps: S1. The unloading robot 5 clamps the empty crucible 49 to the cleaning mechanism 2 and cleans the inside of the crucible 49 by the cleaning brush 12 of the cleaning component 20. After cleaning, the unloading robot 5 clamps the crucible 49 to the conveying mechanism 8. S2. The conveying mechanism 8 conveys the crucible 49 to the residual material detection mechanism 50 to detect whether there is still residual material adhering inside the crucible 49. If the residual material detection mechanism 50 detects that there is no residual material inside the crucible 49, the loading robot 9 continues to hold the crucible 49 to the feeding mechanism 4 for loading. If the residual material detection mechanism 50 detects that there is residual material inside the crucible 49, the loading robot 9 holds the crucible 49 and moves it to one side for unified processing. S3. The loading robot 9 clamps the qualified crucible 49 with no excess material and loads it below the feeding port of the feeding mechanism 4. After loading, the loading robot 9 moves the crucible 49 to the punching mechanism 6 for punching. After punching, it is moved to the conveying mechanism 8 for buffering. S4. The loading robot 9 stacks the crucibles 49 that have been loaded and punched in sequence. The stacked crucibles 49 are then transported by the conveying mechanism 8 to the kiln for firing. During the process of the conveying mechanism 8 transporting the crucibles 49 from the sealed chamber to the kiln, an oxygen-free environment must be maintained. S5. The crucible 49 that has been fired in the kiln is transported back to the sealed chamber by the conveying mechanism 8. The conveying mechanism 8 must maintain an oxygen-free environment during the conveying process. The fired and stacked crucible 49 is transported to the sealed chamber. The conveying mechanism 8 continues to transport the crucible 49 that has been fired in the kiln to the unloading robot 5. S6. The unloading robot 5 disassembles the fired crucibles 49, and removes the crucibles 49 from the conveying mechanism 8 and dumps the material. S7. The unloading robot 5 clamps the empty crucible 49 after unloading to the cleaning mechanism 2, and then repeats the above steps to achieve automatic loading and unloading.

[0056] In use, the conveying mechanism 8 transports the fired crucible 49 to the nitrogen chamber 1. The unloading robot 5 removes the crucible 49 from the conveying mechanism 8 and dumps the material. Then, the robot moves the crucible 49 to the cleaning cover 11, where the cleaning brush 12 cleans the crucible 49. At the same time, the fan 27 on the upper side of the cleaning cover 11 is activated to filter and clean the nitrogen inside the cover 11. The cleaned crucible 49 is then placed back onto the conveying mechanism 8 by the unloading robot 5. The conveying mechanism 8 moves the crucible 49 to the feeding mechanism 4. The loading robot 9 clamps the empty crucible 49 onto the placement rack 42. The hopper feeds material into the hopper 31, which is then transported through the conveying pipe 33 to the docking interface 38. The loading robot 9 then clamps the crucible 49 onto the drilling part 45 for drilling. Finally, after being scraped flat by the scraper 46, the crucible 49 is placed back onto the conveying mechanism 8 and transported to the kiln for firing.

[0057] When cleaning crucible 49, cleaning brush 12 is used. However, cleaning brush 12 needs to be replaced regularly. Therefore, in this invention, a maintenance chamber 19 is provided on the other side of the cleaning cover 11. A sealing plate 17 is detachably provided on the outside of the maintenance chamber 19. A slide valve 18 is sealed between the lower side of the maintenance chamber 19 and the cleaning cover 11. When the cleaning brush 12 needs to be replaced, the slide valve 18 is opened first, the cleaning brush 12 is moved into the maintenance chamber 19, the slide valve 18 is closed, the sealing plate 17 is opened to replace the cleaning brush 12, after replacement, the sealing plate 17 is installed first, the slide valve 18 is opened again, the cleaning brush 12 is moved back into the cleaning cover 11, and the slide valve 18 is closed again. This invention can not only ensure that an oxygen-free environment is maintained throughout the loading and unloading process, but also ensure that a large amount of oxygen does not enter the nitrogen chamber 1 during the replacement of the cleaning brush 12, preventing the replacement of the cleaning brush 12 from affecting the material in the nitrogen chamber 1.

[0058] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. An automatic loading and unloading system for a sealed furnace, characterized in that: The device comprises a sealed chamber, a cleaning mechanism (2), a feeding mechanism (4) and a punching mechanism (6), a conveying mechanism (8) is arranged along the length direction of the sealed chamber, a loading robot (9) is arranged between the feeding mechanism (4) and the punching mechanism (6), the unloading robot (5), the punching mechanism (6) and the loading robot (9) are arranged in the sealed chamber, the sealed chamber is filled with inert gas, the feeding mechanism (4) is sealingly connected to the outside of the sealed chamber and arranged close to the loading robot (9), and a feeding port of the feeding mechanism (4) is communicated to the sealed chamber. The cleaning mechanism (2) comprises a cleaning outer cover (11) and a cleaning assembly (20), one side of the cleaning outer cover (11) is sealingly connected to the sealed chamber through a cleaning transmission window, a maintenance chamber (19) is arranged on the other side of the cleaning outer cover (11), a plug valve (18) is sealingly arranged between the lower side of the maintenance chamber (19) and the cleaning outer cover (11), a sealing plate (17) is detachably arranged on the outside of the maintenance chamber (19), and the cleaning assembly (20) is arranged in the maintenance chamber (19). After the plug valve (18) is opened, the cleaning assembly (20) enters the cleaning outer cover (11) through the plug valve (18).

2. An automatic loading and unloading system for a sealed furnace according to claim 1, characterized in that: A residual material detection mechanism (50) is arranged between the cleaning mechanism (2) and the feeding mechanism (4), the residual material detection mechanism (50) comprises a mounting frame and a detection disc (51), the mounting frame is fixedly installed on the conveying mechanism (8), the detection disc (51) is installed on the mounting frame in a lifting manner through a lifting driving element, the detection disc (51) is slidably connected to the lifting driving element in the vertical direction, and a displacement detection element for detecting the detection disc (51) is further arranged on the lifting driving element.

3. An automatic loading and unloading system for a sealed furnace according to claim 1, characterized in that: A waste bin (13) is arranged on the lower side of the cleaning outer cover (11), a collection box (15) is connected to the lower end of the waste bin (13), and a butterfly valve (14) is arranged between the waste bin (13) and the collection box (15).

4. An automatic loading and unloading system for a sealed furnace according to claim 1, characterized in that: The cleaning mechanism (2) is connected with a filtering mechanism (3), the filtering mechanism (3) comprises a filtering outer cover (26), a fan (27) and a connecting air pipe (29), the filtering outer cover (26) is fixedly and sealingly connected to the cleaning outer cover (11), the fan (27) is arranged in the filtering outer cover (26), an air inlet of the fan (27) is communicated with the cleaning outer cover (11), a filtering element is arranged at the air inlet of the fan (27), one end of the connecting air pipe (29) is connected to the filtering outer cover (26), and the other end of the connecting air pipe (29) is connected to the sealed chamber.

5. An automatic loading and unloading system for a sealed furnace according to claim 1, characterized in that: The feeding mechanism (4) comprises a feeding scale (30), a material bin (31) and a material conveying pipe (33), the feeding scale (30) is fixedly arranged outside the sealed chamber, one end of the material conveying pipe (33) is connected to the lower end of the material bin (31), the other end of the material conveying pipe (33) is a feeding port, a material conveying assembly is arranged in the material conveying pipe (33), the material bin (31) and the material conveying pipe (33) are placed on the feeding scale (30), and the other end of the material conveying pipe (33) is sealingly and floatably connected to the sealed chamber.

6. An automatic loading and unloading system for a sealed furnace according to claim 5, characterized in that: The sealing chamber is sealingly connected with a material conveying chamber (34) near the feeding scale (30), and a butt joint (38) is formed on the lower side of the material conveying chamber (34) and communicates with the sealing chamber, and the other end of the material conveying pipe (33) extends into the material conveying chamber (34), and the feeding port of the material conveying pipe (33) is connected with the butt joint (38) through a hose.

7. An automatic loading and unloading system for a sealed furnace according to claim 1 or 5 or 6, characterized in that: A screen (40) is movably arranged below the feeding port of the feeding mechanism (4).

8. An automatic loading and unloading system for a sealed furnace according to claim 7, characterized in that: A supporting frame (35) is fixedly arranged on one side of the feeding port, a material leveling cylinder (36) is arranged on the supporting frame (35), a moving frame (39) is fixedly arranged on the output end of the material leveling cylinder (36), the screen (40) is arranged on the moving frame (39), and a discharging port (41) is formed on the moving frame (39), and the discharging port (41) is moved below the feeding port to feed.

9. An automatic loading and unloading system for a sealed furnace according to claim 1, characterized in that: The punching mechanism (6) comprises a material receiving frame (43), a stand column (44) and a punching piece (45), the stand column (44) is fixedly arranged on the material receiving frame (43), a supporting plate (47) is connected to the upper end of the stand column (44), both ends of a rotating shaft (48) are rotatably connected to the supporting plate (47), and the upper side of the punching piece (45) is fixedly connected to the rotating shaft (48).

10. An automatic loading and unloading method of a sealing furnace, characterized by: The automatic loading and unloading system of the sealing kiln comprises the following steps: S1, the empty crucible (49) is clamped to the cleaning mechanism (2) by the unloading robot (5), the crucible (49) is cleaned by the cleaning assembly (20), and after the cleaning is completed, the crucible (49) is clamped to the conveying mechanism (8) by the unloading robot (5); S2, the crucible (49) is conveyed to the excess material detection mechanism (50) to detect whether there is excess material in the crucible (49), if there is no excess material in the crucible (49), the crucible (49) is clamped to the next process by the loading robot (9); if there is excess material in the crucible (49), the crucible (49) is clamped to one side by the loading robot (9) for unified processing; S3, the crucible (49) is clamped to the feeding port of the feeding mechanism (4) by the loading robot (9) to load material, and after the loading is completed, the crucible (49) is moved to the punching mechanism (6) by the loading robot (9) for punching treatment, and after the punching is completed, the crucible (49) is moved to the conveying mechanism (8); S4, the crucible (49) loaded and punched is stacked by the loading robot (9) in sequence, and after the stacking, the crucible (49) is conveyed to the kiln for firing by the conveying mechanism (8), and the conveying process of the conveying mechanism (8) is kept in an oxygen-free environment; S5, the crucible (49) fired in the kiln is conveyed to the sealing chamber by the conveying mechanism (8), the conveying process of the conveying mechanism (8) is kept in an oxygen-free environment, and the crucible (49) fired in the kiln is continuously conveyed to the unloading robot (5) by the conveying mechanism (8); S6, the crucible (49) fired is unpacked by the unloading robot (5), the crucible (49) is clamped and taken off from the conveying mechanism (8), and the material is poured. S7, the emptying robot (5) clamps the empty crucible (49) after pouring to the cleaning mechanism (2), and the above steps are repeated to realize automatic loading and unloading.

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