Automatic cleaning machine for baking trays

Abstract

This invention provides an automatic baking tray cleaning machine, including a frame with a moving channel and a conveying mechanism at its bottom. The conveying mechanism includes a driving shaft, a driven shaft, a conveyor belt, and a drive motor. Multiple support members are connected to the conveyor belt, each with a positioning slot at its upper end. Limiting meshes are provided on both sides of the moving channel. A clutch reducer is installed at one end of the driving shaft, and the drive motor's power output is connected to the driving shaft via the clutch reducer. A laser sensor and a controller are also provided on the frame. When the conveyor belt jams, the clutch reducer cuts off power transmission, the laser sensor acquires a corresponding signal and transmits it to the controller, which controls the drive motor to rotate in the opposite direction by a set angle. The automatic baking tray cleaning machine provided by this invention can achieve stable conveying of baking trays, and if jamming occurs during the conveying process, it can disconnect the power transmission to protect the motor.

Description

Technical Field

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

[0002] Baking pans, also known as baking trays or bread baking pans, are typically rectangular metal baking containers widely used for making round breads, cookies, roll cakes, and single-layer cakes. In large-scale baking production, baking pans need to be reused. After each unmolding, the pans often contain residual grease, batter, and crumbs, which must be effectively cleaned before being put back into the production line to ensure food hygiene and production continuity.

[0003] Currently, in homes or small workshops, baking trays are mostly cleaned manually. While this method can meet the needs of small, intermittent cleaning, in large manufacturers, due to the fast production pace, high frequency of baking tray use, and large number of cleaning tasks, relying on manual cleaning is not only costly in terms of labor but also inefficient. It is difficult to match the pace of automated production lines and has become one of the bottlenecks restricting overall production efficiency.

[0004] To address the aforementioned issues, some automated cleaning equipment has emerged in the existing technology, which can replace manual labor to some extent and improve cleaning efficiency. However, these devices still have significant shortcomings in the design of the baking tray conveyor mechanism. A common solution uses a horizontal conveyor belt for conveying the baking trays, but the conveyor belt itself does not have a limiting function for the baking trays. Therefore, limiting guide rods, baffles, and other mechanisms need to be added to both sides of the conveyor belt to prevent the baking trays from shifting. In actual operation, the baking trays usually need to maintain continuous contact and friction with the limiting mechanisms on one or both sides during the conveying process to maintain their vertical or near-vertical conveying posture. This continuous mechanical contact easily leads to scratches, wear, or coating damage on the outer surface of the baking tray (especially the sides), not only affecting the appearance of the baking trays but also potentially accelerating their aging and shortening their service life with long-term use.

[0005] On the other hand, existing baking tray conveyor mechanisms are prone to positional deviations due to factors such as baking tray placement errors, uneven conveyor belt tension, obstructions from foreign objects, or equipment vibrations. When the deviation reaches a certain level, it can cause the conveyor belt to jam against the equipment frame, sprockets, or other components, resulting in complete conveyor belt jamming. When the conveyor belt is completely jammed, the sprockets that mesh with it will no longer rotate. At this time, the drive motor is still running, but its power output shaft cannot effectively transmit rotational torque to the sprockets and conveyor belt, causing the torque to act in the opposite direction on the drive motor itself. This reverse torque will exert a continuous force on the motor mounting base, causing significant vibration, and in severe cases, even causing the mounting base to deflect, affecting the motor's installation stability.

[0006] When the conveyor belt is jammed, the drive motor operates under continuous load, which generates a large amount of heat inside the motor over a prolonged period. If this heat cannot be dissipated in time, it will cause the motor to overheat, affecting its normal operating performance and potentially burning out core components such as internal coils, leading to direct motor damage. Even if motor burnout does not occur, prolonged overload heating will significantly reduce the motor's lifespan, increasing equipment maintenance costs and downtime losses. Summary of the Invention

[0007] To overcome at least one of the defects in the prior art, the present invention provides a baking tray cleaning machine that can achieve stable conveying of baking trays and disconnect the power transmission if jamming occurs during the conveying process, thereby protecting the motor.

[0008] The technical solution adopted in this invention is as follows: An automatic baking tray cleaning machine is provided, including a frame. The frame has a moving channel for horizontal passage of baking trays. A conveying mechanism for conveying the baking trays is located at the bottom of the moving channel. The conveying mechanism includes a driving shaft and a driven shaft horizontally arranged at both ends of the frame. A horizontally moving conveyor belt is mounted on the outside of the driving shaft and the driven shaft. Multiple support members arranged sequentially along the transmission direction are connected to the conveyor belt. Each support member has a vertically positioned positioning slot at its upper end. Limiting pressure nets are provided on both sides of the moving channel, and the distance between two limiting pressure nets is adjustable. A drive motor for driving the driving shaft to rotate is provided on the frame. A clutch reducer is provided at one end of the driving shaft. The power output end of the drive motor is connected to the driving shaft via the clutch reducer. A laser sensor and a controller are also provided on the frame. When the conveyor belt jams, the clutch reducer cuts off the power transmission. The laser sensor acquires a corresponding signal and transmits it to the controller. The controller controls the drive motor to rotate in the opposite direction by a set angle.

[0009] Compared with the prior art, the automatic baking tray cleaning machine of the present invention has the following advantages: 1. The automatic baking tray cleaning machine of the present invention is a special conveying mechanism, which includes a chain conveying assembly and a motor for driving its horizontal conveying. In addition, multiple support members are added to the chain conveying assembly in sequence along its transmission direction, and each support member has a vertically arranged positioning slot at its upper end. In this way, when conveying the baking tray, the lower end of the baking tray can be inserted into the corresponding positioning slot, thereby ensuring the stability of the baking tray during the conveying process and reducing the long-term sliding contact between the baking tray and the limiting members on both sides during the vertical conveying process, thus avoiding scratches on the outer surface of the baking tray. In addition, limiting pressure nets are also set on both sides of the moving channel to further ensure the stability of the baking tray during the conveying process. The distance between the two limiting pressure nets is adjustable, which makes it more suitable for baking trays of different thicknesses, improves the applicability, and has strong versatility.

[0010] 2. In the baking tray conveying mechanism of the present invention, a clutch reducer is provided on the active rotating shaft, and a laser sensor is also provided on the frame. The clutch reducer is used to connect and disconnect the drive motor and the active rotating shaft. In the initial state, the clutch reducer is in the connected state. When the turntable rotates, it can drive the active rotating shaft to rotate together through friction. When the conveyor belt jams and the friction between the turntable and the limiting component increases beyond a preset value, the clutch reducer disconnects the power transmission, the active rotating shaft is in the stopped state, and the drive motor no longer bears a huge load, realizing idling, thereby protecting the motor. More importantly, this structure is also equipped with a laser sensor. When the clutch reducer disconnects the power transmission, the laser sensor can obtain a corresponding signal and control the drive motor to achieve reverse rotation of a set angle through the controller. Experiments have shown that in most cases, the jammed baking tray can be released by the reverse operation of the conveying structure, that is, the problem of automatic jamming is solved.

[0011] Furthermore, the conveyor belt is a chain rod conveying assembly, which includes multiple conveying chain rods and multiple first conveying chain plates. The two ends of the multiple conveying chain rods are rotatably connected through the multiple first conveying chain plates, and the two ends of each conveying chain rod pass through the corresponding first conveying chain plate to form a transmission part. Both ends of the driving shaft and the driven shaft are provided with sprockets that cooperate with the transmission part.

[0012] Furthermore, a second conveyor chain is rotatably connected between each adjacent conveyor chain rod, and multiple support members are respectively connected to the corresponding second conveyor chain. In the above improved structure, the support members are connected through the second conveyor chain, which ensures stable conveying of the baking tray without affecting the flexible operation of the conveying structure.

[0013] Furthermore, the clutch reducer includes a bushing fixed on the drive shaft. A turntable capable of rotating around its axis is fitted outside the bushing. The turntable is connected to the drive motor. The bushing is also provided with a limiting member that can slide along its axial direction. One end of the limiting member abuts against the end face of the turntable, and the other end is provided with an elastic member. The elastic member is used to drive the limiting member to always have a tendency to abut against the end face of the turntable, so that the turntable can drive the bushing to rotate synchronously. When the conveyor belt jams and the friction between the turntable and the limiting member increases beyond a preset value, the turntable disengages from the limiting member and rotates independently.

[0014] Furthermore, an annular fixed disk is connected to the outer peripheral wall of the bushing. The fixed disk has multiple connecting holes arranged in a circumferential array. Each connecting hole is fitted with a ball. A pressure plate that can slide along its axial direction is also fitted on the outside of the bushing. The two sides of each ball abut against the turntable and the pressure plate respectively, and the elastic element acts on the side of the pressure plate away from the ball.

[0015] Furthermore, the outer periphery of the bushing is also fitted with a fixed seat that is axially adjustable, one end of the elastic element abuts against the fixed seat, and the other end abuts against the pressure plate.

[0016] Furthermore, the fixed seat is axially slidably mounted on the outside of the bushing, and a locking nut is screwed onto the outside of one end of the bushing, with one end of the locking nut abutting against the end of the fixed seat away from the elastic element.

[0017] Furthermore, an angled disc is fitted around the outside of the bushing. The angled disc is clamped and limited between the fixed seat and the locking nut. The radial outer end of the angled disc is provided with a plurality of detection baffles evenly distributed along the circumference. The laser sensor is located directly below the angled disc.

[0018] Furthermore, both sides of the moving channel are provided with rotating arms that can swing horizontally. One end of the rotating arm is rotatably connected to the inner wall of the moving channel, and the other end is rotatably connected to the limiting pressure net. By rotating the rotating arms on both sides horizontally, the distance between the two limiting pressure nets can be adjusted. The inner wall of the moving channel is also provided with a positioning component for limiting the rotation angle of the rotating arm.

[0019] Furthermore, the frame is provided with a main washing chamber, a rinsing chamber and a drying chamber arranged sequentially along its length, and the moving channel runs through the main washing chamber, the rinsing chamber and the drying chamber; spraying components are provided in the main washing chamber and the rinsing chamber in the vertical and horizontal directions of the moving channel, and drying components are provided in the drying chamber on both sides of the moving channel.

[0020] Other improvements and advantages of the invention will be set forth in the detailed description that follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0021] Figure 1 This is a longitudinal sectional view of the automatic baking tray cleaning machine of the present invention; Figure 2 This is a partial structural diagram of the automatic baking tray cleaning machine of the present invention; (discharge end) Figure 3 This is a schematic diagram of the discharge end conveying mechanism of the automatic baking tray cleaning machine of the present invention; Figure 4 This is a connection diagram of the limiting pressure net and the spacing adjustment mechanism between the two limiting pressure nets in this invention. Figure 5 for Figure 4 Enlarged structural diagram at point Y in the diagram; Figure 6 A cross-sectional view of the automatic baking tray cleaning machine of the invention; Figure 7 This is a cross-sectional view of the clutch reducer in this invention; Figure 8 for Figure 2 The enlarged structural diagram at point X in the image mainly shows the positional relationship between the signal sensor and the clutch reducer. Figure 9 This is a cross-sectional view of the main washing section and the rinsing section structure in this invention; Figure 10 This is a structural diagram of the drying section in this invention; Figure 11 This is a three-dimensional structural diagram of the air knife in this invention; Figure 12 This is an exploded structural diagram of the air knife in this invention.

[0022] Explanation of reference numerals in the attached figures: 1. Frame; 2. Conveying mechanism; 201. Driven shaft; 202. Driven shaft; 203. Support component; 204. Positioning slot; 205. Drive motor; 206. Conveying chain rod; 207. First conveyor chain; 208. Second conveyor chain; 3. Limiting pressure mesh; 4. Clutch reducer; 401. Bushing; 402. Turntable; 403. Elastic component; 404. Fixed plate; 405. Pressure plate; 406. Ball bearing; 407. Fixed seat; 408. Locking nut; 409. Angle plate; 410. Detection baffle; 5. Laser sensor; 6. Rotating arm; 601. Support plate; 602. Connecting arm; 7. Positioning assembly; 701. Arc-shaped connecting plate; 702. Positioning socket; 70 3. Positioning pin; 8. Main wash chamber; 9. Rinse chamber; 10. Drying chamber; 11. Drive wheel; 12. Transmission belt; 13. Transmission unit; 14. Guide rail; 15. Mounting base; 16. Connecting shaft; 17. Main wash assembly; 18. Rinse assembly; 19. Air knife; 20. Main wash water tank; 21. Pre-rinse water tank; 22. Settling tank; 23. Guide plate; 24. Filter mesh; 25. Water passage; 26. High-pressure rinse water pump; 27. Heating assembly; 28. Air knife; 2801. End plate; 2802. Side plate; 2803. Air guide plate; 2804. Support rib plate; 2805. Clearance; 29. ​​Blower; 30. Air inlet; 31. V-shaped guide plate; 32. Air outlet. Detailed Implementation

[0023] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0024] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "fixed" and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0025] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0026] See Figures 1-12As shown in the figure, this application discloses an automatic baking tray cleaning machine, including a frame 1. The frame 1 is provided with a main washing chamber 8, a rinsing chamber 9 and a drying chamber 10 arranged sequentially along its length and interconnected internally. The frame 1 is also provided with a moving channel for the baking tray to pass horizontally, and the moving channel passes through the main washing chamber 8, the rinsing chamber 9 and the drying chamber 10. Spraying components are provided in the main washing chamber 8 and the rinsing chamber 9 in the vertical and horizontal directions of the moving channel. Drying components are provided in the drying chamber 10 on both sides of the moving channel. The bottom of the moving channel is provided with a conveying mechanism 2 for conveying the baking tray to pass through the main washing chamber 8, the rinsing chamber 9 and the drying chamber 10 in a vertical state, so as to realize the fully automatic cleaning and drying process of the baking tray.

[0027] In addition, in this structure, limiting pressure nets 3 are set on both sides of the moving channel. The two limiting pressure nets 3 are used to guide and limit the position of the baking pan during the moving process, further ensuring that the baking pan remains stable during the moving process and under the washing action of the spray water, and will not tip over. Moreover, the distance between the two limiting pressure nets 3 is adjustable to better suit baking pans of different sizes or other pans and utensils, fully improving versatility and making one item serve multiple purposes.

[0028] In the above structure, such as Figure 4 and 5 As shown, the adjustable distance between the two limiting pressure nets 3 means that there are horizontally swinging rotating arms 6 on both sides of the moving channel. One end of the rotating arm 6 is rotatably connected to the inner wall of the moving channel, and the other end is rotatably connected to the limiting pressure net 3. By horizontally rotating the rotating arms 6 on both sides, the two limiting pressure nets 3 can be driven to move closer and further apart, so as to realize the adjustment of the distance between the two limiting pressure nets 3, making it more suitable for baking pans of different thicknesses, improving the applicability and versatility.

[0029] On another note, in the above structure, a positioning component 7 is provided on the inner wall of the moving channel to limit the rotation angle of the rotating arm 6, ensuring that the structure remains stable after the distance between the two limiting pressure nets 3 is adjusted to the required spacing, and guiding and limiting the movement of the baking pan.

[0030] In this embodiment, preferably, multiple rotating arms 6 are provided on both sides of the moving channel, and multiple vertically arranged connecting shafts 16 are provided on the two side walls of the moving channel and spaced apart along the moving path of the baking tray. One end of each rotating arm 6 is rotatably engaged on the corresponding connecting shaft 16, and the other end is rotatably connected to the limiting pressure net 3 on the corresponding side. The structure of multiple rotating arms 6 makes the limiting pressure net 3 structure more stable and will not easily deform during use.

[0031] More specifically, the above structure also includes multiple mounting bases 15, which are detachably connected to both sides of the moving channel. Each connecting shaft 16 is mounted on its corresponding mounting base 15, and the positioning assembly 7 is mounted on the mounting base 15 near the entrance or exit end of the moving channel. This structure allows the limiting pressure nets 3 on both sides of the moving channel, the multiple rotating arms 6, and the mounting bases 15 to be pre-assembled as a component structure before being installed in the equipment. Subsequently, the entire assembly can be connected to the side walls of the moving channel in the equipment cavity via the mounting bases 15, eliminating the need for on-site assembly of individual parts, reducing installation difficulty, and improving work efficiency.

[0032] In addition, in this embodiment, such as Figure 5 As shown, the positioning component 7 includes an arc-shaped connecting plate 701. The arc-shaped connecting plate 701 is horizontally positioned and protrudes towards one side of the moving channel. One end of the arc-shaped connecting plate 701 is connected to the rotating arm 6. The mounting base 15 has a positioning channel, and the other end of the arc-shaped connecting plate 701 is movably inserted into the positioning channel. The arc-shaped connecting plate 701 has multiple positioning holes 702 arranged in a circumferential array. The mounting base 15 also has a positioning pin 703 for insertion and engagement with any of the positioning holes 702 on the arc-shaped connecting plate 701. When the rotating arm 6 is rotated, one end of the arc-shaped connecting plate 701 can extend and retract within the positioning channel. Different positions of the positioning holes 702 engage with the positioning pins 703 to define different angular positions.

[0033] In this embodiment, to further improve the stability of the connection structure between the rotating arm 6 and the limiting pressure net 3, and to ensure that the limiting pressure nets 3 on both sides of the moving channel remain vertical when they move closer together or further apart, preferably, the rotating arm 6 includes a vertically arranged support plate 601. Horizontally arranged connecting arms 602 are fixed to both the upper and lower ends of the support plate 601. One end of each connecting arm 602 is rotatably connected to the connecting shaft 16, and the other end is rotatably connected to the limiting pressure net 3. One end of the arc-shaped connecting plate 701 is fixed to the connecting arm 602 at the lower end of the corresponding rotating arm 6. Preferably, the arc-shaped connecting plate 701 and the lower connecting arm 602 are an integral structure, which is convenient to process and requires no subsequent connection. With this arrangement, each rotating arm 6 and the limiting pressure net 3 has two connection points, and these two connection points are vertically spaced. Combined with the multiple rotating arms 6 arranged along the length of the entire moving channel, this ensures a stable connection between the limiting pressure net 3 and the side wall of the moving channel, and allows for easy adjustment of the distance between the two limiting pressure nets 3.

[0034] In this embodiment, as Figure 1 and 3As shown, the conveying mechanism 2 includes a drive shaft 201 and a driven shaft 202, which are horizontally arranged at both ends of the frame 1. The drive shaft 201 and the driven shaft 202 are equipped with a horizontally moving conveyor belt. Multiple support members 203 are connected to the conveyor belt and arranged in sequence along its transmission direction. Each support member 203 has a vertically arranged positioning slot 204 at its upper end. The frame 1 is equipped with a drive motor 205 for driving the drive shaft 201 to rotate. One end of the drive shaft 201 is equipped with a clutch reducer 4. The power output end of the drive motor 205 is connected to the drive shaft 201 through the clutch reducer 4. When the conveyor belt jams, the clutch reducer 4 is used to cut off the power transmission.

[0035] Specifically, such as Figure 6 , 7 As shown in Figure 8, the clutch reducer 4 includes a bushing 401 fixedly mounted on the drive shaft 201. A turntable 402 capable of rotating around its axis is mounted on the outside of the bushing 401. The turntable 402 is connected to the drive motor 205. The bushing 401 is also provided with a limiting member that can slide along its axial direction. One end of the limiting member abuts against the end face of the turntable 402, and the other end is provided with an elastic member 403. The elastic member 403 is used to drive the limiting member to always have a tendency to abut against the end face of the turntable 402, so that the turntable 402 can drive the bushing 401 to rotate synchronously. When the conveyor belt jams and the friction between the turntable 402 and the limiting member increases beyond a preset value, the turntable 402 disengages from the limiting member and rotates independently, that is, the power transmission is cut off. The limiting member and the bushing 401 do not rotate with the turntable 402. The bushing 401 is in a stopped state, and the drive motor 205 no longer bears a huge load, realizing idling, thereby protecting the motor.

[0036] In this embodiment, an annular fixed disk 404 is also connected to the outer peripheral wall of the bushing 401. The fixed disk 404 has multiple communicating holes arranged in a circumferential array, each containing a ball bearing 406. A pressure plate 405, slidable along its axial direction, is also fitted onto the outside of the bushing 401. The two sides of each ball bearing 406 abut against the turntable 402 and the pressure plate 405, respectively, and an elastic element 403 acts on the side of the pressure plate 405 away from the ball bearing 406. The multiple balls bearing 406 here act as limiting elements, and the elastic element 403 drives the pressure plate 405 to move axially along the bushing 401, thereby driving the balls bearing 406 to abut against the end face of the turntable 402, achieving a rotational connection.

[0037] More specifically, in the above structure, a fixed seat 407 with an axially adjustable position is also fitted around the outer periphery of the bushing 401. One end of the elastic element 403 abuts against the fixed seat 407, and the other end abuts against the pressure plate 405. Furthermore, the fixed seat 407, like the pressure plate 405, is axially slidably mounted on the outside of the bushing 401. A locking nut 408 is screwed onto the outside of one end of the bushing 401, and one end of the locking nut 408 abuts against the end of the fixed seat 407 away from the elastic element 403. By rotating the locking nut 408, the elastic element 403 can be compressed and released. That is, by turning the locking nut 408, the magnitude of the preload acting axially on the pressure plate 405 can be adjusted.

[0038] In this embodiment, preferably, the elastic element 403 includes multiple springs, which are small cylindrical springs. Multiple spring holes arranged in a circumferential array are provided on the end faces of the pressure plate 405 and the fixing seat 407 on opposite sides. The two ends of the multiple springs are respectively fitted into the corresponding spring holes. By setting the spring holes, the circumferential position of the spring is limited, ensuring that it remains stable during axial compression and does not tilt, that is, ensuring the stability and balance of the clamping force acting on the pressure plate 405 axially.

[0039] On the other hand, an annular angled disc 409 is also fitted outside the bushing 401, and the angled disc 409 is clamped and limited between the fixed seat 407 and the locking nut 408, meaning that the angled disc 409 can rotate synchronously with the bushing 401. Multiple circumferentially evenly distributed detection baffles 410 are provided at the radially outer end of the angled disc 409. A laser sensor 5 is located directly below the angled disc 409 on the frame 1, and the laser sensor 5 is electrically connected to the drive motor 205. In this structure, the position of the angled disc 409 is detected by the laser sensor 5 to control the reverse rotation and the rotation angle of the drive motor 205. Specifically, two control logics are pre-stored in the control system: the angle at which the drive motor 205 is controlled to reverse when the laser sensor 5 detects the position and empty position of the detection baffles 410 on the angled disc 409, so as to realize the direction rotation of the conveyor belt and prevent jamming.

[0040] The control process is as follows: For example: when the conveyor belt jams, causing the bushing 401 to stop, the angle plate 409 also stops. At this time, the laser sensor 5 can detect the position of the angle plate 409. If it detects the position of the detection stop 410 and holds it still for 5 seconds, it sends a signal to the controller, controlling the drive motor 205 to rotate the angles of the three detection stops 410 in the opposite direction and hold it for 3-5 seconds. If it detects a missing position on the angle plate 409 and holds it still for 5 seconds, it sends a signal to the controller, controlling the drive motor 205 to rotate the angles of the four detection stops in the opposite direction. Maintain this position for 3-5 seconds, then continue controlling the drive motor to rotate in the forward direction. If the jamming has been resolved, the drive motor 205 will rotate in the forward direction and drive the bushing 401 to rotate continuously in the forward direction. The laser sensor 5 will not be able to detect the position signal of the angle disk 409. If the jamming is not resolved after rotating in the forward direction, the drive motor 205 will still not be able to drive the bushing 401 to rotate. At this time, the laser sensor 5 will detect the position of the angle disk 409 again. If the jamming cannot be resolved after repeating this process more than three times, the controller will prompt manual intervention to manually check the location and cause of the jamming.

[0041] On the other hand, such as Figure 6 As shown, in the above structure, the drive motor 205 is mounted on the frame 1 and located below the active shaft 201. A drive wheel 11 is connected to the output shaft of the drive motor 205, and a transition wheel is connected to one end of the active shaft 201. A transmission belt 12 connects the drive wheel 11 and the transition wheel. When the drive motor 205 runs, it drives the transition wheel to rotate via the transmission belt 12, which in turn drives the active shaft 201 to rotate, ultimately causing the active wheel to rotate. In this embodiment, the turntable 402 serves as the transition wheel. In other embodiments, the transmission belt 12 can also be a transmission chain, in which case the corresponding drive wheel 11 and transition wheel would be sprocket structures. Furthermore, the drive motor 205 can directly drive the active shaft 201 to rotate; in this case, the drive motor 205 is preferably a servo motor.

[0042] In this embodiment, the conveyor belt is a chain conveyor assembly, comprising multiple conveyor chains 206 and multiple first conveyor chain segments 207. The two ends of the multiple conveyor chains 206 are rotatably connected via the multiple first conveyor chain segments 207, and the two ends of each conveyor chain 206 pass through the corresponding first conveyor chain segment 207 to form a transmission part 13. Both ends of the driving shaft 201 and the driven shaft 202 are provided with sprockets that cooperate with the transmission part 13. Second conveyor chain segments 208 are rotatably connected between adjacent conveyor chains 206, and multiple support members 203 are respectively connected to the corresponding second conveyor chain segments 208. Preferably, the support member 203 is a Y-shaped support plate 601, and a positioning slot 204 is formed at the bottom of the upper groove of each Y-shaped support plate 601. The upper part of the Y-shaped support plate 601 has a V-shaped guide section, which reduces the requirement for precise positioning when the baking tray is placed vertically. Furthermore, the positioning slot 204 is located at the bottom of the guide section, so the baking tray does not need to be completely aligned with the positioning slot 204 when it is inserted. It can be inserted along the V-shaped opening and automatically fitted into the positioning slot 204 under the action of the guide surface, which is very convenient.

[0043] In this embodiment, preferably, two second conveyor chain segments 208 are provided on each conveyor chain rod 206, and the lower end of the support member 203 is fixed between the two second conveyor chain segments 208. Furthermore, to define the position between the conveyor chain rod 206 and the first and second conveyor chain segments 207 and 208, the conveyor chain rod 206, the first and second conveyor chain segments 207 and 208 are all made of stainless steel. Multiple plastic sleeves are fitted around the outside of the conveyor chain rod 206. The first and second conveyor chain segments 207 and 208 are vertically inserted through the outside of the conveyor chain rod 206, and their sides are respectively abutted and limited by corresponding plastic sleeves.

[0044] like Figure 3 As shown, two vertically distributed guide rails 14 are provided on the frame 1 and on both sides of the moving channel. The upper and lower transmission parts 13 on both sides of the width direction of the chain rod conveying assembly are respectively slidably engaged in the corresponding guide rails 14.

[0045] Other, such as Figure 9As shown, in this embodiment, main washing components 17 are respectively arranged on both sides of the mesh claw conveyor structure in the main washing chamber 8, and similarly, rinsing components 18 are respectively arranged on both sides of the mesh claw conveyor structure in the rerinsing chamber 9. More specifically, a main washing water tank 20 with built-in heating element is arranged on the frame 1 below the main washing chamber 8. The rinsing chamber 9 is further divided into a pre-rinsing unit and a clean rinsing unit. The main washing water tank 20 supplies water to the main washing components 17 in the main washing chamber 8 through a water pump and water pipe. Preferably, a pre-rinsing water tank 21 with built-in heating element is arranged in the main washing water tank 20 and on the side near the rinsing chamber 9. It supplies water to the rinsing components 18 in the rinsing chamber 9 through a water pump and water pipe. The side wall of the pre-rinsing water tank 21 is also provided with a low-level sensor for indicating water addition and a high-level sensor for indicating that water addition has stopped. In this structure, the main wash water tank 20 can preheat the pre-rinse water tank 21 while heating the main wash water, thus reducing the heating time of the pre-rinse water tank 21 and achieving energy saving. Furthermore, precise control over when to start and stop adding water to the pre-rinse water tank 21 can be achieved through corresponding sensors, avoiding water waste.

[0046] In this embodiment, preferably, the main wash water tank 20 is located below the main wash chamber 8. The bottom plate of the main wash chamber 8 has a recessed settling trough 22 in the middle, and inclined guide plates 23 are provided at both ends of the bottom plate. A filter screen 24 is provided on the guide plate 23 near the rinsing chamber 9 and above the rinsing water tank, while a connecting hole is provided on the guide plate 23 at the other end, allowing the main wash water to enter the main wash water tank 20. The main wash water in the main wash chamber 8 can achieve particulate matter settling and collection through the settling trough 22. A portion of the main wash water without impurities can return to the main wash water tank 20 through the connecting hole, while a small amount of main wash water will enter the pre-rinsing water tank 21 through the filter screen 24. Additionally, the bottom of the rinsing chamber 9 has water passages 25 connecting to the pre-rinsing water tank 21.

[0047] To improve the rinsing effect, in this embodiment, a high-pressure rinsing water pump 26 is also provided on the frame 1. The inlet of the high-pressure rinsing water pump 26 is connected to the pre-rinsing water tank 21, and the outlet is connected to the pre-rinsing assembly 18 to achieve high-pressure pre-rinsing. Furthermore, a heating assembly 27 is also provided on the frame 1. One end of the heating assembly 27 is connected to external tap water, and the other end is connected to the rinsing assembly 18 to achieve high-temperature rinsing and improve the cleaning effect. The heating assembly 27 mentioned here is prior art; for details, please refer to the PTC heating assembly 27 for a commercial dishwasher disclosed in patent CN223081636U, which will not be elaborated upon here.

[0048] Multiple drying units are installed on both sides of the moving channel; specifically, such as... Figure 10 , 11As shown in Figure 12, the drying assembly includes an air knife 28 and a blower 29. The air knife 28 includes an air knife 28 body, and a pressure stabilizing cavity is provided inside the air knife 28 body. One end of the air knife 28 body is provided with an air inlet 30 that communicates with the pressure stabilizing cavity. An installation channel extending along its length is opened on the side wall of the air knife 28 body. A V-shaped guide plate 31 is provided inside the pressure stabilizing cavity. The tip of the V-shaped guide plate 31 is fitted into the installation channel. The two side plates 2802 at the open end are respectively attached to the two side plates 2802 of the pressure stabilizing cavity. The tip of the V-shaped guide plate 31 is provided with multiple linearly arranged air outlets 32 along its length. In this structure, the pressure stabilizing cavity described refers to a "buffer air chamber" inside the air knife 28. Its function is to slow down, stabilize, and evenly disperse the airflow after the air blown out by the blower 29 passes through the air inlet 30 in the pressure stabilizing cavity before it is blown out from the air outlet 32. This eliminates turbulence and eddies, ensuring that the airflow at the air outlet 32 ​​is uniform and stable.

[0049] In addition, compared with the traditional straight-slit air outlet 32, this structure is changed to multiple segmented air outlets 32. The segmented air outlet can reduce mutual interference of airflow, suppress the generation of large-scale eddies, reduce water splashing and secondary water contact, and improve the drying effect. Furthermore, the airflow passes through the V-shaped guide plate 31 before the air outlet 32 ​​to concentrate the airflow, resulting in higher airflow concentration and stronger penetration, which can effectively dry grooves, gaps and other parts, and reduce blind spots in drying.

[0050] Preferably, the air knife 28 body has an assembled structure, including a front-opening air shroud formed by a back plate, two upper and lower end plates 2801, and two left and right side plates 2802. Two air guide plates 2803 are connected to the open end of the air shroud. The rear ends of the two air guide plates 2803 are respectively connected to the two sides of the open end of the air shroud, and their front ends are close together to form an installation channel. The front sides of the upper and lower ends extend to the upper and lower ends of the two air guide plates 2803, respectively. The two side plates 2802 of the V-shaped guide plate 31 are respectively connected to the two air guide plates 2803. The whole is assembled from multiple plates, eliminating the need for integral casting or complex profile processing, reducing manufacturing difficulty and processing costs. The assembly and positioning between each plate is clear, facilitating mass production and on-site assembly and maintenance. The back panel, upper and lower end plates 2801, and left and right side plates 2802 enclose and form a front-opening hood, constituting a closed and rigid internal cavity. This effectively creates a pressure-stabilizing cavity, ensuring that the airflow entering the air knife 28 is fully buffered, pressure-equalized, and rectified, preventing airflow leakage and pressure loss, and guaranteeing stable and uniform airflow. The two air guide plates 2803 are wider at the rear and narrower at the front, naturally forming a gradually narrowing guide channel. This further guides, converges, and accelerates the airflow output from the pressure-stabilizing cavity, directing the airflow more concentratedly to the V-shaped guide plate, improving airflow utilization and outlet air velocity. The installation channel formed by the mutual approach of the front ends of the air guide plates 2803 provides a precise assembly position for the V-shaped guide plate, ensuring a firm connection and accurate positioning between the two side plates 2802 of the V-shaped guide plate and the air guide plate 2803. This guarantees the continuity of the overall air duct and avoids airflow turbulence and leakage caused by assembly deviations. In the entire structure, from the pressure stabilizing cavity of the hood to the converging section of the air guide plate 2803, and then to the air outlet 32 ​​at the tip of the V-shaped guide plate, the airflow channel transitions continuously and smoothly without abrupt changes or dead angles. This effectively reduces airflow resistance and eddy current generation, thereby reducing operating noise and improving drying efficiency.

[0051] More specifically, in order to further enhance the structural strength of the air blade 28 body, the air blade 28 body also includes multiple support ribs 2804, which are respectively connected to the inner wall of the air cover. Each support rib 2804 has a circular opening 2805 in the middle. The opening 2805 is mainly for airflow to pass through. In this structure, the width of the support rib 2804 should not be too wide. Under the premise of ensuring strength, the diameter of the opening 2805 should be expanded as much as possible.

[0052] More specifically, in this embodiment, three sets of air knives 28 are respectively arranged on both sides of the moving channel, and the lower end of each set of air knives 28 is inclined forward along the moving path of the baking tray, and the air outlet 32 ​​of each set of air knives 28 is facing the position of the baking tray. The multiple sets of air knives 28 are arranged sequentially along the conveying direction of the baking tray, which can form a multi-stage progressive drying effect: the front-stage air knife 28 can perform preliminary dehydration on the surface of the baking tray, blowing away most of the free water droplets; the rear-stage air knife 28 can finely dry the remaining water stains. Through multi-stage relay blowing, the problem of incomplete drying in a single blow is avoided, and the overall drying efficiency and drying uniformity are significantly improved. The air knives 28 are inclined forward, so that the air outlet direction forms a certain angle with the moving direction of the baking tray. The airflow sweeps the surface of the baking tray at a tangential angle, which is more conducive to peeling off and pushing the moisture forward along the moving direction of the baking tray, avoiding water splashing, rebounding, and secondary adhesion caused by vertical blowing, and effectively eliminating the phenomenon of secondary water contamination. Furthermore, the combination of multiple sets of inclined air knives 28 with V-shaped airflow guides and segmented short straight slit air outlets 32 not only ensures concentrated airflow and strong penetration, but also optimizes the blowing direction through the tilt angle, making the overall drying system more uniform in air output, more precise in blowing, and more stable in operation.

[0053] like Figure 1 As shown in this embodiment, two drying chambers are provided. After the baking tray is cleaned, it is dried by two air blowers to improve the drying effect.

[0054] In the description of this application, the references to terms such as "this embodiment," "some embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0055] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An automatic baking tray cleaning machine, comprising a frame, characterized in that: The frame is provided with a moving channel for the horizontal passage of baking trays. At the bottom of the moving channel is a conveying mechanism for transporting the baking trays. The conveying mechanism includes a driving shaft and a driven shaft horizontally arranged at both ends of the frame. A horizontally moving conveyor belt is fitted around the driving shaft and the driven shaft. Multiple support members are connected to the conveyor belt, arranged sequentially along its transmission direction. Each support member has a vertically positioned positioning slot at its upper end. Limiting meshes are provided on both sides of the moving channel, and the distance between two limiting meshes is adjustable. The frame is provided with a drive motor for rotating the driving shaft. A clutch reducer is provided at one end of the driving shaft. The power output end of the drive motor is connected to the driving shaft via the clutch reducer. The frame is also provided with a laser sensor and a controller. When the conveyor belt jams, the clutch reducer cuts off the power transmission, the laser sensor acquires a corresponding signal and transmits it to the controller, which controls the drive motor to rotate in the opposite direction by a set angle.

2. The automatic baking tray cleaning machine according to claim 1, characterized in that: The conveyor belt is a chain conveyor assembly, which includes multiple conveyor chains and multiple first conveyor chain plates. The two ends of the multiple conveyor chains are rotatably connected by multiple first conveyor chain plates, and the two ends of each conveyor chain pass through the corresponding first conveyor chain plate to form a transmission part. Both ends of the driving shaft and the driven shaft are provided with sprockets that cooperate with the transmission part.

3. The automatic baking tray cleaning machine according to claim 2, characterized in that: Each adjacent conveyor chain rod is rotatably connected to a second conveyor chain plate, and multiple support members are respectively connected to the corresponding second conveyor chain plates.

4. The automatic baking tray cleaning machine according to claim 1, characterized in that: The clutch reducer includes a bushing fixed on the drive shaft. A turntable rotatable around its axis is fitted outside the bushing. The turntable is connected to the drive motor. The bushing is also provided with a limiting member that can slide along its axial direction. One end of the limiting member abuts against the end face of the turntable, and the other end is provided with an elastic member. The elastic member is used to drive the limiting member to always have a tendency to abut against the end face of the turntable, so that the turntable can drive the bushing to rotate synchronously. When the conveyor belt jams and the friction between the turntable and the limiting member increases beyond a preset value, the turntable disengages from the limiting member and rotates independently.

5. The automatic baking tray cleaning machine according to claim 4, characterized in that: An annular fixed disk is connected to the outer peripheral wall of the bushing. The fixed disk has multiple connecting holes arranged in a circumferential array. Each connecting hole is fitted with a ball. A pressure plate that can slide along its axial direction is also fitted on the outside of the bushing. The two sides of each ball abut against the turntable and the pressure plate respectively, and the elastic element acts on the side of the pressure plate away from the ball.

6. The automatic baking tray cleaning machine according to claim 5, characterized in that: The bushing is also fitted with a fixed seat that is axially adjustable. One end of the elastic element abuts against the fixed seat, and the other end abuts against the pressure plate.

7. The automatic baking tray cleaning machine according to claim 6, characterized in that: The fixed seat is axially slidably mounted on the outside of the bushing. A locking nut is screwed onto the outside of one end of the bushing, and one end of the locking nut abuts against the end of the fixed seat away from the elastic element.

8. The automatic baking tray cleaning machine according to claim 6, characterized in that: An angled disc is also fitted on the outside of the bushing. The angled disc is clamped and limited between the fixed seat and the locking nut. The radial outer end of the angled disc is provided with a plurality of detection baffles evenly distributed along the circumference. The laser sensor is located directly below the angled disc.

9. The automatic baking tray cleaning machine according to claim 1, characterized in that: Both sides of the moving channel are provided with a horizontally swinging rotating arm. One end of the rotating arm is rotatably connected to the inner wall of the moving channel, and the other end is rotatably connected to the limiting pressure net. By horizontally rotating the rotating arms on both sides, the distance between the two limiting pressure nets can be adjusted. The inner wall of the moving channel is also provided with a positioning component for limiting the rotation angle of the rotating arm.

10. The automatic baking tray cleaning machine according to claim 1, characterized in that: The frame is provided with a main washing chamber, a rinsing chamber and a drying chamber arranged sequentially along its length. The moving channel runs through the main washing chamber, the rinsing chamber and the drying chamber. Spraying components are provided in the main washing chamber and the rinsing chamber in the vertical and horizontal directions of the moving channel. Drying components are provided in the drying chamber on both sides of the moving channel.

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