Automatic cleaning machine for baking trays

Abstract

This invention relates to the field of baking pan cleaning equipment technology, and discloses an automatic baking pan cleaning machine, including a frame, a conveying module, and a cleaning module. Both the conveying module and the cleaning module are located inside the frame. The conveying module, installed inside the frame, includes an upper conveying module and a lower conveying module. The upper conveying module is fixedly installed on the inner top walls of both sides of the frame via a first spring telescopic rod, and the lower conveying module is fixedly installed on the inner side walls of the front and rear of the frame via a second spring telescopic rod. Four cleaning modules are provided and staggeredly installed on the upper and lower sides of the conveying module. This device, through an adaptive conveying module to adapt to multiple sizes of baking pans and a synchronous telescopic cleaning module to achieve comprehensive washing, circulating filtration, and a high-temperature final washing system, improves environmental friendliness and cleanliness. It effectively solves the problems of poor adaptability, incomplete cleaning, water waste, and easy pipe blockage of traditional cleaning machines, achieving efficient, fully automatic, and highly adaptable baking pan cleaning operations.

Description

Technical Field

[0001] This invention relates to the field of baking pan cleaning equipment technology, and more specifically, to an automatic baking pan cleaning machine. Background Technology

[0002] Automatic baking pan cleaning machines are specialized cleaning equipment used in food processing, catering, and other fields. They are mainly used to automatically clean baking pans used in baking and roasting processes, removing oil stains, food residues, and other dirt from the surface of the baking pans, replacing manual cleaning, and ensuring the cleanliness of the baking pans to meet the needs of repeated use.

[0003] However, traditional baking pan cleaning methods and existing cleaning equipment have many shortcomings, making it difficult to meet the needs for efficient and thorough cleaning. Baking pan cleaning largely relies on manual operation, resulting in low efficiency. Some existing baking pan cleaning machines offer poor cleaning quality, and their conveyor mechanisms are often fixed, lacking adaptability to different sized baking pans. Slightly larger pans may have their soiled surfaces obscured by the conveyor structure, leading to incomplete cleaning, while slightly smaller pans cannot be properly cleaned. Furthermore, in traditional cleaning processes, wastewater and impurities are directly discharged, easily causing sewer blockages. Therefore, it is urgent to solve these problems. Summary of the Invention

[0004] (a) Technical problems to be solved In view of the above situation and to overcome the defects of the prior art, the present invention provides an automatic baking pan cleaning machine, which aims to solve the problems in the background art.

[0005] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: an automatic baking pan cleaning machine, comprising a frame, a conveying module, and a cleaning module, wherein both the conveying module and the cleaning module are disposed inside the frame. The conveying module is installed inside the frame and includes an upper conveying module and a lower conveying module. The upper conveying module is fixedly installed on the inner top walls of both sides of the frame by a first spring telescopic rod, and the lower conveying module is fixedly installed on the inner side walls of the front and rear of the frame by a second spring telescopic rod. Four cleaning modules are provided and are staggered and installed on the upper and lower sides of the conveying module. A feeding bracket is installed on the right side of the frame, a discharging bracket is installed on the left side of the frame, and a water curtain is installed on the left side of the frame above the discharging bracket.

[0006] Preferably, the upper conveying module includes a first transmission frame, a dual-axis telescopic tube, a bidirectional telescopic rod, a first spring telescopic rod, and a first conveyor belt. The upper end of the first spring telescopic rod is fixedly installed on the inner top wall of both sides of the frame. The dual-axis telescopic tube is fixedly installed on the lower end of the first spring telescopic rod. The dual-axis telescopic tube is provided with a bidirectional telescopic rod inside, so that both ends of the dual-axis telescopic tube can extend and retract. The first transmission frame is fixedly installed on the front and rear ends of the dual-axis telescopic tube. The first conveyor belt is connected to the outer surface of the first transmission frame.

[0007] Preferably, the lower conveying module includes a second spring telescopic rod, a second transmission frame, a second conveyor belt, an electric telescopic rod, and a first splined shaft. The second spring telescopic rod is installed on the front and rear sides of the inner wall of the frame. The second transmission frame is fixedly installed on one end of the second spring telescopic rod. The second conveyor belt is connected to the outer surface of the second transmission frame via a transmission roller. The two ends of the electric telescopic rod connect the two second transmission frames to each other. The first splined shaft is movably connected to the transmission roller inside the second transmission frame. The inner wall of the transmission roller is provided with spline teeth that match the splines on the outer surface of the first splined shaft, so that when the first splined shaft rotates, it can drive the two second conveyor belts to drive on the outer surface of the second transmission frame, and the two second transmission frames can slide back and forth on the outer surface of the first splined shaft. A second motor is provided on the inner bottom wall of the frame, and the output end of the second motor is connected to the front end of the first splined shaft via a pulley and a belt.

[0008] Preferably, the cleaning module includes a support frame, a limiting sleeve, a second splined shaft, a cleaning roller, and a cleaning brush. Four support frames are provided and respectively fixedly installed on the outer surfaces of the first transmission frame and the second transmission frame. The limiting sleeve is located at one end of the support frame. The second splined shaft passes through the interior of the limiting sleeve. The cleaning roller is movably connected to the outer surface of the second splined shaft via a bearing. The cleaning brush is located on the outer surface of the cleaning roller. The inner sidewall of the bearing is provided with spline teeth that match the splines on the outer surface of the second splined shaft, so that the second splined shaft can drive the cleaning roller to rotate when it rotates, and the cleaning roller can slide back and forth on the outer surface of the second splined shaft.

[0009] Preferably, the outer surface of the cleaning roller is provided with a groove, and there are two cleaning rollers that are symmetrically staggered. The grooves on the two cleaning rollers are interlaced, so that adjusting the distance between the two support frames can change the overall length of the two cleaning rollers.

[0010] Preferably, the cleaning brushes are arranged in a plurality of uniformly distributed in a circular array, with the length of the cleaning brushes of the two upper cleaning modules protruding beyond the lower surface of the first conveyor belt, and the length of the cleaning brushes of the two lower cleaning modules protruding beyond the upper surface of the second conveyor belt.

[0011] Preferably, a limiting plate is fixedly connected to the front of the frame, a limiting groove is formed on the inner side wall of the limiting plate, a limiting slider is slidably connected to the inner side wall of the limiting groove, the middle part of the limiting slider is rotatably connected to the outer surface of the second spline shaft through a bearing, a first motor is fixedly connected to the inner bottom wall of the frame, and the output end of the first motor is connected to the front end of the two second spline shafts through a pulley and a belt.

[0012] Preferably, the frame is provided with a water storage tank inside, the water storage tank is provided with a water storage trough in the middle, a filter screen plate is fixedly connected to the right side of the water storage trough, the filter screen plate is inclined, an impurity trough is provided on the right side of the inner wall of the water storage tank, a funnel is provided below the filter screen plate, and a sewage discharge pipe is provided at the lower end of the funnel.

[0013] Preferably, a spray pipe is fixedly connected to the inner wall of the frame above the cleaning module on the upper right side. A first high-pressure pump is installed on the inner bottom wall of the frame. The input end of the first high-pressure pump is located on the lower surface of the water storage tank, and a precision filter screen is installed at the input end of the first high-pressure pump. The output end of the first high-pressure pump is connected to the spray pipe through a conduit. A high-pressure spray pipe is installed on the inner wall of the frame on the left side of the cleaning module. The output end of the high-pressure spray pipe faces the connection point between the upper and lower conveying modules on the left. A second high-pressure pump and a water heater are respectively installed on the inner bottom wall of the frame. The input end of the second high-pressure pump is connected to the water supply pipeline. The output end of the second high-pressure pump is connected to the input end of the water heater through a conduit. The output end of the water heater is connected to the high-pressure spray pipe through a conduit.

[0014] (III) Beneficial Effects Compared with the prior art, the present invention provides an automatic baking pan cleaning machine, which has the following beneficial effects: 1. This automatic baking pan cleaning machine, through the arrangement of a first spring telescopic rod, a second spring telescopic rod, a double-axis telescopic tube, a bidirectional telescopic rod, an electric telescopic rod, and a first spline shaft, enables the automatic baking pan cleaning machine to adapt to baking pans of different thicknesses and widths, provide tight conveying, and minimize obstruction. Through the coordinated arrangement of the upper and lower conveying modules, the conveying spacing and clamping force can be flexibly adjusted according to the size of the baking pan during use, thereby achieving stable conveying and full exposure of the cleaning surface, thus adapting to multiple specifications of baking pans and avoiding cleaning dead corners.

[0015] 2. This automatic baking tray cleaning machine, through the arrangement of a first motor, a second splined shaft, a cleaning roller, a cleaning brush, a chute, and a support frame, enables the automatic baking tray cleaning machine to achieve the effect of synchronously extending and retracting the cleaning roller to adapt to the width of the baking tray, and rotating the cleaning brush to thoroughly clean the tray. Through the coordinated adjustment of the cleaning module and the conveying module, the cleaning coverage area can be changed according to the size of the baking tray during use, thereby achieving the effect of simultaneous brushing on both the top and bottom sides and thorough removal of stains, thus improving the cleaning quality and efficiency.

[0016] 3. This automatic baking pan cleaning machine, through the configuration of a water storage tank, water storage trough, filter screen plate, impurity trough, sewage discharge pipe, first high-pressure pump, and spray pipe, enables the automatic baking pan cleaning machine to achieve sewage filtration and circulation, impurity separation and collection, and water conservation and environmental protection. Through the combination of spray cleaning and high-pressure hot water final washing, the cleaning liquid can be recycled and residues can be rinsed off with high temperature and high pressure during use, thereby reducing water consumption, preventing pipe blockage, and ensuring the cleanliness of the final wash, achieving the purpose of automated continuous cleaning and reducing labor costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the front cross-section of the present invention; Figure 3 This is a schematic diagram of the second three-dimensional structure of the present invention; Figure 4 This is a schematic diagram of the internal structure of the frame of the present invention; Figure 5 This is a three-dimensional structural diagram of the cleaning module and the upper conveying module of the present invention; Figure 6 This is a schematic diagram of the above-mentioned delivery module of the present invention; Figure 7 This is a schematic diagram of the conveying module of the present invention; Figure 8 This is a three-dimensional structural diagram of the cleaning module of the present invention; Figure 9 This is a three-dimensional exploded view of the cleaning module of the present invention; Figure 10 This is a schematic diagram of the three-dimensional cross-section of the water storage tank of the present invention.

[0018] In the diagram: 1. Frame; 2. Protective plate; 3. Main control module; 4. Feed tray; 5. First transmission frame; 6. Dual-shaft telescopic tube; 7. Bidirectional telescopic rod; 8. First spring telescopic rod; 9. First conveyor belt; 10. Second spring telescopic rod; 11. Second transmission frame; 12. Second conveyor belt; 13. Electric telescopic rod; 14. First splined shaft; 15. Support frame; 16. Limit sleeve; 17. Second splined shaft; 18. Bearing; 19. Cleaning roller; 2 0. Cleaning brush; 21. Slide rail; 22. Limiting plate; 23. Limiting groove; 24. Limiting slider; 25. Pulley; 26. Belt; 27. First motor; 28. Second motor; 29. ​​Spray pipe; 30. High-pressure spray pipe; 31. Second high-pressure pump; 32. Water heater; 33. First high-pressure pump; 34. Discharge bracket; 35. Water storage tank; 36. Water storage trough; 37. Filter screen; 38. Impurity trough; 39. Sewage discharge pipe; 40. Water curtain. Detailed Implementation

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0021] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0022] Please see Figures 1-10The automatic baking pan cleaning machine provided in this embodiment has a conveying module and a cleaning module inside its frame 1. The conveying module includes an upper conveying module and a lower conveying module. The upper conveying module includes a first transmission frame 5, a double-shaft telescopic tube 6, a bidirectional telescopic rod 7, a first spring telescopic rod 8, and a first conveyor belt 9. The upper end of the first spring telescopic rod 8 is fixedly installed on the inner top wall of both sides of the frame 1. The double-shaft telescopic tube 6 is fixedly installed at the lower end of the telescopic rod of the first spring telescopic rod 8. The bidirectional telescopic rod 7 is located inside the double-shaft telescopic tube 6. The first transmission frame 5 is fixedly installed at both ends of the double-shaft telescopic tube 6. The first conveyor belt 9 is connected to the outer surface of the first transmission frame 5. The lower conveying module includes a second spring telescopic rod 10, a second transmission frame 11, a second conveyor belt 12, an electric telescopic rod 13, and a first splined shaft. 14. The second spring telescopic rod 10 is installed on the front and rear sides of the inner wall of the frame 1. The second transmission frame 11 is fixedly installed on one end of the telescopic rod of the second spring telescopic rod 10. The second conveyor belt 12 is connected to the outer surface of the second transmission frame 11 through the transmission roller. The two ends of the electric telescopic rod 13 are connected to the two second transmission frames 11. The first spline shaft 14 is movably connected to the transmission roller inside the second transmission frame 11. The inner side wall of the transmission roller is provided with spline teeth that are compatible with the spline of the first spline shaft 14. The inner bottom wall of the frame 1 is provided with a second motor 28. The output end of the second motor 28 is connected to the front end of the first spline shaft 14 through the pulley 25 and the belt 26. The feed bracket 4 is installed on the right side of the frame 1, and the discharge bracket 34 and the water curtain 40 are installed on the left side, forming the core structure of adaptive multi-specification baking tray conveying.

[0023] Specifically, during the cleaning operation, the baking tray is placed in the feeding bracket 4 and pushed into the machine frame 1. The second motor 28 drives the first spline shaft 14 to rotate through the pulley 25 and belt 26, which in turn drives the second conveyor belt 12 to transport the baking tray. The first spring telescopic rod 8 applies downward pressure so that the first conveyor belt 9 adapts to the upper surface of baking trays of different thicknesses. The second spring telescopic rod 10 elastically supports the second transmission frame 11 to ensure the fit of the conveyor. The bidirectional telescopic rod 7 is adjusted to drive the extension and retraction of the dual-axis telescopic tube 6, which adjusts the spacing of the first transmission frame 5. The electric telescopic rod 13 is controlled to extend and retract to adjust the spacing of the second transmission frame 11, so that the upper and lower conveying modules can adapt to baking trays of different widths, reduce the obstruction of the baking tray surface, and fully expose the cleaning surface.

[0024] Please see Figures 2-5 and Figures 8-9The cleaning module has four components, which are staggered and installed on the upper and lower sides of the conveying module. Each cleaning module includes a support frame 15, a limiting sleeve 16, a second splined shaft 17, a cleaning roller 19, and a cleaning brush 20. The support frame 15 is fixedly installed on the outer surfaces of the first transmission frame 5 and the second transmission frame 11. The limiting sleeve 16 is located at one end of the support frame 15. The second splined shaft 17 passes through the interior of the limiting sleeve 16. The cleaning roller 19 is movably connected to the outer surface of the second splined shaft 17 via a bearing 18. The cleaning brush 20 is located on the outer surface of the cleaning roller 19. On the bearing 18, the inner wall is provided with spline teeth that are adapted to the spline of the second spline shaft 17; the outer surface of the cleaning roller 19 is provided with a groove 21, the two cleaning rollers 19 are symmetrically staggered and the grooves 21 interpenetrate each other, the upper cleaning brush 20 protrudes from the lower surface of the first conveyor belt 9, and the lower cleaning brush 20 protrudes from the upper surface of the second conveyor belt 12; the limiting plate 22 is also provided with a tensioning component, which is used to tension the belt 26 to adapt to the tensioning requirements of the belt 26 at different heights of the second spline shaft 17, so as to ensure stable transmission. A limiting plate 22 is fixedly connected to the front of the frame 1. A limiting groove 23 is opened on the inner side wall of the limiting plate 22. A limiting slider 24 is slidably connected to the inner side wall of the limiting groove 23. The middle part of the limiting slider 24 is rotatably connected to the outer surface of the second spline shaft 17 through a bearing 18. A first motor 27 is fixedly connected to the inner bottom wall of the frame 1. The output end of the first motor 27 is connected to the front end of the two second spline shafts 17 through a pulley 25 and a belt 26, forming a key structure for synchronous telescopic full-scale washing.

[0025] Specifically, the first motor 27 drives the second spline shaft 17 to rotate via the pulley 25 and belt 26. The second spline shaft 17 drives the cleaning roller 19 and the cleaning brush 20 to rotate via spline engagement, simultaneously cleaning the upper and lower surfaces of the baking tray. When the conveying module adjusts the spacing, the support frame 15 drives the cleaning roller 19 to slide along the slide groove 21 to change the overall length of the cleaning roller 19 to match the width of the baking tray. The limiting slider 24 slides along the limiting groove 23 to ensure the stable rotation of the second spline shaft 17. The cleaning brush 20 always fully covers the surface of the baking tray, achieving thorough cleaning without dead angles.

[0026] Please see Figures 1-4 and Figure 10The automatic baking pan cleaning machine has a water storage tank 35 inside its frame 1, a water storage trough 36 in the middle of the water storage tank 35, an inclined filter plate 37 fixedly connected to the right side of the water storage trough 36, an impurity trough 38 on the right side of the inner wall of the water storage tank 35, a funnel below the filter plate 37 and a sewage discharge pipe 39 connected to its lower end; a spray pipe 29 is fixedly connected above the cleaning module on the upper right side of the inner wall of the frame 1, and a first high-pressure pump 33 is installed on the inner bottom wall. The input end of the first high-pressure pump 33 is located on the lower surface of the water storage trough 36 and is equipped with a precision filter, and the output end is connected to the spray pipe 29 through a conduit; a high-pressure spray pipe 30 is installed on the left side of the cleaning module on the inner wall of the frame 1, and a second high-pressure pump 31 and a water heater 32 are installed on the inner bottom wall respectively. The input end of the second high-pressure pump 31 is connected to the water supply pipeline, and the output end is connected to the input end of the water heater 32 through a conduit. The output end of the water heater 32 is connected to the high-pressure spray pipe 30 through a conduit, forming a key structure for sewage circulation filtration and high-temperature final washing.

[0027] Specifically, the first high-pressure pump 33 draws water from the water storage tank 36 and sprays it onto the cleaning brush 20 through the spray pipe 29 to improve the cleaning effect; the cleaning wastewater falls into the water storage tank 35, is filtered by the filter screen plate 37, and impurities are trapped in the impurity tank 38. The filtered wastewater is discharged through the wastewater discharge pipe 39, and the clean water in the water storage tank 36 can be recycled; after the baking tray is washed, the second high-pressure pump 31 pumps clean water into the water heater 32 for heating, and then rinses the baking tray with high temperature and high pressure through the high-pressure spray pipe 30 to remove residual stains and cleaning liquid. The water curtain 40 prevents water from splashing out, achieving water conservation, environmental protection and a clean final wash.

[0028] In summary, when using the entire equipment: after placing the baking tray to be cleaned on the feeding bracket 4, it is pushed to the left into the equipment. The second motor 28 operates, driving the first spline shaft 14 to rotate via the pulley 25 and belt 26, thereby driving the second conveyor belt 12 to transmit power on the outer surface of the second transmission frame 11, driving the baking tray to be stably conveyed to the left. The first spring telescopic rod 8 of the upper conveying module provides downward pressure for the entire upper conveying module and can extend and retract freely to adapt to baking trays of different thicknesses, ensuring the fit between conveying and cleaning. During the conveying process, cleaning solution and clean water can be poured into the water storage tank 36 first, and then the first high-pressure pump 33 pumps the mixed cleaning solution into the spray pipe 29, which is then evenly sprayed onto the cleaning brush 20 of the cleaning module to keep the cleaning brush 20 moist and improve the cleaning effect. When the first motor 27 is working, it drives the second splined shaft 17 of the four cleaning modules to rotate via the pulley 25 and belt 26. When the second splined shaft 17 rotates, the cleaning roller 19 rotates synchronously with the help of the splined adapter structure of the bearing 18, so that the cleaning brush 20 can thoroughly clean the upper and lower surfaces of the baking tray without dead angles. After the baking tray is cleaned, it continues to be conveyed to the left side where it is about to be discharged. The second high-pressure pump 31 pumps clean water into the water heater 32. After the water temperature rises, the clean hot water is sprayed obliquely from the high-pressure spray pipe 30 to perform a final high-temperature and high-pressure rinse on the baking tray to remove residual stains and cleaning liquid. To accommodate baking pans of different sizes, the front-to-back width of the conveying module can be adjusted via the main control module 3. During adjustment, the two ends of the bidirectional telescopic rod 7 within the dual-axis telescopic tube 6 are controlled to extend and retract, causing the two telescopic ends of the dual-axis telescopic tube 6 to extend and retract synchronously. This adjusts the distance between the two first transmission frames 5, adapting to the pressing width requirements of different baking pans. When the electric telescopic rod 13 extends and retracts, it drives the two second transmission frames 11 to move closer or further apart. Combined with the elastic support of the second spring telescopic rod 10, this allows the two second transmission frames 11 to be centered and their distance adjusted, reducing obstruction of the outer surface of the baking pan and adapting to baking pans of different widths. The adjustment of the conveying module's spacing is simultaneously driven by the support frame 15 to slide the two cleaning rollers 19 within the intersecting grooves 21, allowing the overall length of the cleaning rollers 19 in the cleaning module to flexibly adapt to the size of the baking pan, ensuring the cleaning coverage area. After cleaning, impurities and wastewater fall into the water storage tank 35 and flow to the water storage trough 36. When water overflows from the water storage trough 36, the filter screen 37, tilted to the right, allows water to pass through. After the impurities are filtered by the filter screen 37, the wastewater is discharged from the wastewater discharge pipe 39, and the impurities fall into the impurity trough 38 for temporary storage, facilitating centralized cleaning. The continuous flow of water can continuously carry away impurities, maintaining the cleanliness of the water in the water storage trough 36. The first high-pressure pump 33 can recycle the water in the water storage trough 36 for spraying, effectively saving water. After the final rinse, the baking tray is protected from splashing by the water curtain 40 and then conveyed to the discharge tray 34 to await removal, thus completing the overall automatic cleaning operation.

[0029] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic baking pan cleaning machine, comprising a frame (1), a conveying module and a cleaning module, wherein the conveying module and the cleaning module are both disposed inside the frame (1), characterized in that: The conveying module is installed inside the frame (1). The conveying module includes an upper conveying module and a lower conveying module. The upper conveying module is fixedly installed on the inner top wall of both sides of the frame (1) by a first spring telescopic rod (8). The lower conveying module is fixedly installed on the inner side wall of the front and rear of the frame (1) by a second spring telescopic rod (10). The cleaning module is provided in four parts and is installed staggered on the upper and lower sides of the conveying module. The right side of the frame (1) is equipped with a feeding bracket (4). The left side of the frame (1) is equipped with a discharge bracket (34). The left side of the frame (1) is equipped with a water curtain (40) above the discharge bracket (34).

2. The automatic baking tray cleaning machine according to claim 1, characterized in that: The upper conveying module includes a first transmission frame (5), a double-axis telescopic tube (6), a bidirectional telescopic rod (7), a first spring telescopic rod (8), and a first conveyor belt (9). The upper end of the first spring telescopic rod (8) is fixedly installed on the inner top wall of both sides of the frame (1). The double-axis telescopic tube (6) is fixedly installed on the lower end of the first spring telescopic rod (8). The double-axis telescopic tube (6) is provided with a bidirectional telescopic rod (7) inside, so that the two ends of the double-axis telescopic tube (6) can extend and retract. The first transmission frame (5) is fixedly installed on the front and rear ends of the double-axis telescopic tube (6). The first conveyor belt (9) is connected to the outer surface of the first transmission frame (5).

3. The automatic baking tray cleaning machine according to claim 1, characterized in that: The lower conveyor module includes a second spring telescopic rod (10), a second transmission frame (11), a second conveyor belt (12), an electric telescopic rod (13), and a first splined shaft (14). The second spring telescopic rod (10) is installed on the front and rear sides of the inner wall of the frame (1). The second transmission frame (11) is fixedly installed on one end of the second spring telescopic rod (10). The second conveyor belt (12) is connected to the outer surface of the second transmission frame (11) via a transmission roller. The two ends of the electric telescopic rod (13) connect the two second transmission frames (11) to each other. The first splined shaft (14) is movably connected to... Inside the transmission roller inside the second transmission frame (11), the inner sidewall of the transmission roller is provided with spline teeth that are adapted to the spline on the outer surface of the first spline shaft (14), so that when the first spline shaft (14) rotates, it can drive the two second transmission belts (12) to drive on the outer surface of the second transmission frame (11), and the two second transmission frames (11) can slide back and forth on the outer surface of the first spline shaft (14). The inner bottom wall of the frame (1) is provided with a second motor (28), and the output end of the second motor (28) is connected to the front end of the first spline shaft (14) through a pulley (25) and a belt (26).

4. The automatic baking tray cleaning machine according to claim 1, characterized in that: The cleaning module includes a support frame (15), a limiting sleeve (16), a second spline shaft (17), a cleaning roller (19), and a cleaning brush (20). The support frame (15) has four parts, which are respectively fixedly installed on the outer surface of the first transmission frame (5) and the outer surface of the second transmission frame (11). The limiting sleeve (16) is located at one end of the support frame (15). The second spline shaft (17) passes through the inside of the limiting sleeve (16). The cleaning roller (19) is movably connected to the outer surface of the second spline shaft (17) through a bearing (18). The cleaning brush (20) is located on the outer surface of the cleaning roller (19). The inner sidewall of the bearing (18) is provided with spline teeth that are adapted to the splines on the outer surface of the second spline shaft (17), so that when the second spline shaft (17) rotates, it can drive the cleaning roller (19) to rotate, and the cleaning roller (19) can slide back and forth on the outer surface of the second spline shaft (17).

5. An automatic baking tray cleaning machine according to claim 4, characterized in that: The outer surface of the cleaning roller (19) is provided with a groove (21). There are two cleaning rollers (19) arranged symmetrically and staggered. The grooves (21) on the two cleaning rollers (19) are interlaced with each other, so that adjusting the distance between the two support frames (15) can change the overall length of the two cleaning rollers (19).

6. An automatic baking tray cleaning machine according to claim 4, characterized in that: The cleaning brushes (20) are arranged in a plurality of uniformly distributed in a ring array. The length of the cleaning brushes (20) of the two upper cleaning modules protrudes from the lower surface of the first conveyor belt (9), and the length of the cleaning brushes (20) of the two lower cleaning modules protrudes from the upper surface of the second conveyor belt (12).

7. An automatic baking tray cleaning machine according to claim 1 or 4, characterized in that: A limiting plate (22) is fixedly connected to the front of the frame (1). A limiting groove (23) is opened on the inner side wall of the limiting plate (22). A limiting slider (24) is slidably connected to the inner side wall of the limiting groove (23). The middle part of the limiting slider (24) is rotatably connected to the outer surface of the second spline shaft (17) through a bearing. A first motor (27) is fixedly connected to the inner bottom wall of the frame (1). The output end of the first motor (27) is connected to the front end of the two second spline shafts (17) through a pulley (25) and a belt (26).

8. An automatic baking tray cleaning machine according to claim 1, characterized in that: The frame (1) is equipped with a water storage tank (35) inside. A water storage trough (36) is provided in the middle of the water storage tank (35). A filter screen plate (37) is fixedly connected to the right side of the water storage trough (36). The filter screen plate (37) is inclined. An impurity trough (38) is provided on the right side of the inner wall of the water storage tank (35). A funnel is provided below the filter screen plate (37), and a sewage discharge pipe (39) is provided at the lower end of the funnel.

9. An automatic baking tray cleaning machine according to claim 1, characterized in that: A spray pipe (29) is fixedly connected to the upper right side of the inner wall of the frame (1) above the cleaning module. A first high-pressure pump (33) is provided on the inner bottom wall of the frame (1). The input end of the first high-pressure pump (33) is located on the lower surface of the water storage tank (36), and a precision filter screen is provided at the input end of the first high-pressure pump (33). The output end of the first high-pressure pump (33) is connected to the spray pipe (29) through a conduit. The inner wall of the frame (1) is located on the left side of the cleaning module. A high-pressure nozzle (30) is provided, with the output end of the high-pressure nozzle (30) facing the connection between the upper conveying module and the left end of the lower conveying module. A second high-pressure pump (31) and a water heater (32) are respectively installed on the inner bottom wall of the frame (1). The input end of the second high-pressure pump (31) is connected to the water supply pipeline. The output end of the second high-pressure pump (31) is connected to the input end of the water heater (32) through a conduit. The output end of the water heater (32) is connected to the high-pressure nozzle (30) through a conduit.

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