A surface cleaning device for a packaging box

Abstract

The present invention relates to the field of cleaning of packaging boxes, and particularly to a surface cleaning device for packaging boxes, which includes a cleaning pool, a conveyor belt, a spray pipe, a rotating shaft, an L-shaped turning plate, a rotating assembly, etc.; the conveyor belt is installed on the cleaning pool; a number of spray pipes are arranged on the cleaning pool; the cleaning pool is connected with two rotating assemblies; each rotating assembly is connected with a rotating shaft, and the rotating shaft is rotationally connected with the inner wall and the partition plate of the cleaning pool; an L-shaped turning plate for turning the packaging box is fixedly connected to each rotating shaft; the rotating assembly is used to drive the L-shaped turning plate to rotate through the rotating shaft. The present invention realizes that by controlling the distance between the water surface in the cleaning pool and the upper surface of the conveyor belt to be less than the height of the packaging box, during the cleaning process, the water flow sprayed by the spray pipe will not wash the packaging box into the water, avoiding the buffer and dispersion effects of the water in the cleaning pool on the impact force of the water flow sprayed by the spray pipe, resulting in the difficulty for the water flow to concentrate its force to remove the dirt on the surface of the packaging box and affecting the cleaning effect of the packaging box.

Description

Technical Field

[0001] The present invention relates to the field of cleaning of packaging boxes, and particularly to a surface cleaning device for packaging boxes. Background Art

[0002] After the packaging box is used to package food and sealed, in order to ensure that the surface of the packaging box is clean and free of pollution, it is necessary to spray and clean the sealed packaging box. However, during the spraying and cleaning process of the packaging box, the packaging boxes are uniformly placed in the cleaning pool and then conveyed through the conveyor belt in the cleaning pool. However, during the above cleaning process, the packaging boxes are easily stacked together after being immersed in water, and the nozzles cannot fully clean all the packaging boxes. Moreover, during the cleaning process of the packaging boxes, the packaging boxes are immersed in water under the impact of water flow, resulting in the water in the cleaning pool buffering and dispersing the impact force of the water flow sprayed by the nozzles. It is difficult for the water flow sprayed by the nozzles to concentrate its force to remove the dirt on the surface of the packaging boxes, which affects the cleaning effect of the packaging boxes. Summary of the Invention

[0003] In order to overcome the shortcoming that during the cleaning process of the packaging box, the packaging box is immersed in water under the impact of water flow, resulting in the water in the cleaning pool buffering and dispersing the impact force of the water flow sprayed by the nozzles, and it is difficult for the water flow sprayed by the nozzles to concentrate its force to remove the dirt on the surface of the packaging box, the present invention provides a surface cleaning device for packaging boxes.

[0004] The technical solution is as follows: A surface cleaning device for packaging boxes includes a cleaning pool, a conveyor belt, and a spray pipe; a conveyor belt is installed on the cleaning pool; a water delivery pipe is arranged on the cleaning pool and is connected to an external pump 1; a plurality of spray pipes are arranged on the cleaning pool, and all the spray pipes are communicated with the water delivery pipe; it further includes a rotating shaft, an L-shaped turning plate, a limiting rod, and a rotating assembly; a partition plate is arranged in the cleaning pool, and the partition plate is used to divide the cleaning pool into two front and rear cleaning tanks; a communicating block for draining water is arranged on the left side of the cleaning pool and is connected to an external pump 2; the cleaning pool is connected with two rotating assemblies; each rotating assembly is connected with a rotating shaft, and the rotating shaft is rotationally connected to the inner wall of the cleaning pool and the partition plate; an L-shaped turning plate for turning the packaging box is fixedly connected to each rotating shaft; the rotating assembly is used to drive the L-shaped turning plate to rotate through the rotating shaft; an infrared sensing device is arranged on the cleaning pool, and the infrared sensing device is located between the horizontal part and the vertical part of the L-shaped turning plate; a plurality of first flow-through grooves are arranged on each L-shaped turning plate; a plurality of limiting rods are fixedly connected to the partition plate of the cleaning pool, and the limiting rods are used to deform the conveyor belt.

[0005] Optionally, the rotating assembly includes a fixed block, a driving motor, and an output shaft; a fixed block is fixedly connected to the cleaning pool; a driving motor is fixedly connected to the fixed block; an output shaft is fixedly connected to the output end of the driving motor, and the output shaft is connected to the corresponding rotating shaft.

[0006] Optionally, the spray head of each spray pipe is inclined toward the packaging box.

[0007] Optionally, it also includes a driving member, a connecting rod, a blocking plate and a drainage box; a plurality of drain ports are arranged on the cleaning pool, and the contact area between the cleaning pool and the vertical part of the L-shaped flip plate is used as the dividing line, and the drain port is arranged on the right side of the dividing line; a blocking block is slidably arranged on each drain port; a plurality of detection probes for detecting leakage of the packaging box are installed on the cleaning pool and the partition; each rotating component is connected to a plurality of driving members; the output end of each driving member is fixedly connected to the corresponding blocking block through the mounting block; a movable groove is arranged in each L-shaped flip plate; each rotating component is connected to a connecting part, The connecting part is fixedly connected to the mounting block at the output end of the adjacent driving member; a connecting rod is slidably connected in each rotating shaft, and each connecting rod is fixedly connected to the connecting part connected to the adjacent rotating assembly; a sealing plate is fixedly connected to each connecting rod, and the sealing plate is arranged in the vertical part of the L-shaped flip plate; each sealing plate is provided with a plurality of second flow grooves, and the second flow grooves are aligned with the first flow grooves; a plurality of drainage boxes are fixedly connected to the cleaning pool, and the drainage boxes are located below the blocking block; a plurality of protrusions are provided on the connecting rod and the rotating assembly, and grooves matching the protrusions are provided on the rotating shaft and the connecting part.

[0008] Optionally, all detection probes installed on the cleaning tank and the partition are close to the rotation path of the L-shaped flip plate.

[0009] Optionally, it also includes elastic parts, guide plates, extrusion rods and curved blocks; a number of elastic parts are fixedly connected to the transverse part of each L-shaped flip plate; a number of telescopic parts are arranged on the transverse part of each L-shaped flip plate, and the telescopic end of each elastic part is located in the adjacent telescopic part, and the telescopic part is in close contact with the inner wall of the cleaning pool and the partition; the telescopic ends of all elastic parts located in the same telescopic part are commonly fixedly connected to the guide plate; a curved surface is arranged on the side of each guide plate away from the L-shaped flip plate; a squeezing rod for squeezing the packaging box is arranged on the side of each guide plate close to the L-shaped flip plate; two curved blocks are fixedly connected to the cleaning pool, and two curved blocks are also fixedly connected to the partition.

[0010] Optionally, a limiting portion is provided on each bending block.

[0011] Optionally, each curved surface is configured to be larger at the top and smaller at the bottom.

[0012] Optionally, the two extrusion rods on the same L-shaped flip plate are combined into an eight-shaped shape.

[0013] Optionally, it further includes a telescopic block and a limiting rod; a telescopic block is provided at one end of each guiding plate close to the vertical part of the L-shaped turning plate; a number of limiting holes are provided on the telescopic structure of each telescopic block; one end of the extrusion rod is rotatably connected to the adjacent guiding plate, and the other end is rotatably connected to the telescopic structure on the adjacent telescopic block; a limiting rod for restricting the movement of the telescopic structure is inserted into each telescopic block, and the limiting rod is inserted into the limiting hole.

[0014] Optionally, an alarm device is provided on the cleaning pool, and the alarm device is connected to the detection probe via Bluetooth.

[0015] The beneficial effects of the present invention are as follows: The present invention realizes that by controlling the distance between the water surface in the cleaning pool and the upper surface of the conveyor belt to be less than the height of the packaging box, during the cleaning process, the water flow sprayed by the spray pipe will not wash the packaging box into the water, avoiding the buffer and dispersion effects of the water in the cleaning pool on the impact force of the water flow sprayed by the spray pipe, resulting in the difficulty for the water flow to concentrate its force to remove the dirt on the surface of the packaging box and affecting the cleaning effect of the packaging box;

[0016] The L-shaped turning plate drives the packaging box to turn over, enabling the spray pipe to clean the bottom surface of the packaging box, ensuring the cleaning effect of the packaging box. At the same time, by changing the orientation of the spray head of the spray pipe, the spray pipe can fully clean the packaging box, ensuring the cleaning effect of the packaging box;

[0017] The detection probe monitors the turbidity of the water flow in real time, thereby quickly judging whether the packaging box leaks. And the flow of the water in the cleaning pool is intercepted and guided by the blocking plate, avoiding the overall pollution of the water in the cleaning pool, reducing the water usage cost, and at the same time preventing the sewage from polluting the subsequent packaging boxes that have not been turned over and the previously turned-over packaging boxes;

[0018] By installing the detection probe at a position close to the packaging box after turning over, the detection probe can quickly detect the leaked food, avoiding the overall pollution of the water in the right part of the cleaning pool by the leaked food and polluting the previously turned-over packaging boxes;

[0019] The front side and the rear side of the packaging box are squeezed by the extrusion rod, expanding the gap between the packaging part and the packaging box, which is beneficial for the detection probe to monitor the leaked food after the packaging box is turned over, minimizing the polluted range of the water in the right part of the cleaning pool and further avoiding polluting the previously turned-over packaging boxes. Description of the Drawings

[0020] Figure 1 It is a first perspective three-dimensional structural schematic diagram of the surface cleaning device for packaging boxes of the present invention;

[0021] Figure 2 It is a three-dimensional structural schematic diagram of the cleaning pool, conveyor belt and spray pipe of the present invention;

[0022] Figure 3 This is a second - perspective three - dimensional structure diagram of the surface cleaning device for the packaging box in the production of the packaging box of the present invention;

[0023] Figure 4 This is a cross - sectional view of the cleaning pool of the present invention;

[0024] Figure 5 This is a three - dimensional structure diagram of the rotating shaft, L - shaped turning plate and rotating assembly of the present invention;

[0025] Figure 6 This is a three - dimensional structure diagram of the conveyor belt and the L - shaped turning plate of the present invention;

[0026] Figure 7 This is a three - dimensional structure diagram of the driving part, drainage box and arc - shaped block of the present invention;

[0027] Figure 8 This is a three - dimensional structure diagram of the guide plate, extrusion rod, telescopic block and limiting rod of the present invention;

[0028] Figure 9 This is a three - dimensional structure diagram of the rotating shaft, output shaft and connecting rod of the present invention.

[0029] Marks in the drawings: 1 - cleaning pool, 1001 - water delivery pipe, 1002 - partition board, 1003 - connecting block, 1004 - plugging block, 1005 - detection probe, 2 - conveyor belt, 3 - spray pipe, 4 - rotating shaft, 5 - L - shaped turning plate, 5001 - first flow channel, 5002 - movable groove, 5003 - telescopic part, 101 - fixed block, 102 - driving motor, 103 - output shaft, 10301 - connecting part, 201 - limiting rod, 301 - driving part, 30101 - mounting block, 302 - connecting rod, 303 - plugging plate, 30301 - second flow channel, 304 - drainage box, 401 - elastic part, 402 - guide plate, 40201 - arc - shaped surface, 403 - extrusion rod, 404 - arc - shaped block, 40401 - limiting part, 405 - telescopic block, 40501 - limiting hole, 406 - limiting rod. Detailed implementation manners

[0030] The following describes the implementation manners of the present invention with reference to the accompanying drawings.

[0031] Embodiment 1

[0032] As Figures 1 - 6 shown, a surface cleaning device for a packaging box includes a cleaning pool 1, a conveyor belt 2 and a spray pipe 3; the conveyor belt 2 is installed on the cleaning pool 1; a water delivery pipe 1001 is arranged on the cleaning pool 1, and the water delivery pipe 1001 is connected to an external pump 1; five spray pipes 3 are arranged on the cleaning pool 1, and all the spray pipes 3 are communicated with the water delivery pipe 1001;

[0033] It further includes a rotating shaft 4, an L-shaped turning plate 5, a limiting rod 201 and a rotating assembly; a partition plate 1002 is arranged in the cleaning pool 1, and the partition plate 1002 is used to divide the cleaning pool 1 into two front and rear cleaning tanks; a connecting block 1003 is arranged on the left side of the cleaning pool 1, and the connecting block 1003 is connected to an external pump two; the cleaning pool 1 is connected with two symmetrically arranged rotating assemblies; each rotating assembly is connected with a rotating shaft 4, and the rotating shaft 4 is rotatably connected to the inner wall of the cleaning pool 1 and the partition plate 1002; an L-shaped turning plate 5 is fixedly connected to each rotating shaft 4; the rotating assembly is used to drive the L-shaped turning plate 5 to rotate through the rotating shaft 4; an infrared sensing device is arranged on the cleaning pool 1, and the infrared sensing device is located between the horizontal part and the vertical part of the L-shaped turning plate 5; three first flow channels 5001 are arranged on each L-shaped turning plate 5; two symmetrically arranged limiting rods 201 are fixedly connected to the partition plate 1002 of the cleaning pool 1.

[0034] The rotating assembly includes a fixed block 101, a driving motor 102 and an output shaft 103; the fixed block 101 is fixedly connected to the cleaning pool 1; the driving motor 102 is fixedly connected to the fixed block 101; the output end of the driving motor 102 is fixedly connected to the output shaft 103, and the output shaft 103 is connected to the corresponding rotating shaft 4.

[0035] The nozzle of each spray pipe 3 is inclined towards the packaging box.

[0036] The working steps of this embodiment are as follows:

[0037] Preparation work; water is injected into the cleaning pool 1 in advance, a collection box or a conveying device is arranged on the right side of the cleaning pool 1, so that the cleaned packaging boxes are collected or conveyed to the subsequent process, and with the upper surface of the conveyor belt 2 as a reference, the water surface in the cleaning pool 1 is lower than the height of the packaging box, then the external pump one is started, so that the water is injected into the spray pipe 3 through the water delivery pipe 1001, the spray pipe 3 starts the spraying operation, and at the same time the external pump two is started, the water in the cleaning pool 1 is pumped out through the connecting block 1003, and the water flow direction in the cleaning pool 1 is to flow to the left, ensuring that the water surface in the cleaning pool 1 will not submerge the packaging box, and at the same time the conveyor belt 2 is started to run, and with the front-to-back view as a reference, the conveyor belt 2 runs clockwise.

[0038] Cleaning work: After the preparation work is completed, the packing boxes are conveyed to the inclined surface of the connecting block 1003 at a rate of 3 seconds interval through the external feeding device. Affected by gravity, the packing boxes automatically slide onto the conveyor belt 2 and are driven by the conveyor belt 2 to be conveyed to the right and gradually pass through the spray pipe 3. The spray pipe 3 cleans the surface of the packing boxes. During the cleaning process, since the water surface in the cleaning pool 1 is below the packing boxes, the water flow sprayed by the spray pipe 3 during the cleaning process will not wash the packing boxes into the water, preventing the water in the cleaning pool 1 from buffering and dispersing the impact force of the water flow sprayed by the spray pipe 3, resulting in difficulty for the water flow to concentrate its force to remove the dirt on the surface of the packing boxes and affecting the cleaning effect of the packing boxes. It should be noted that a supporting net is provided at the position of the connecting block 1003 for drainage to prevent the packing boxes from getting stuck on the inclined surface of the connecting block 1003. Moreover, the cleaning pool 1 is divided into two front and rear cleaning tanks by the partition plate 1002, and only one packing box can pass through each cleaning tank to prevent the packing boxes from stacking in the cleaning pool 1 and affecting the cleaning effect of the packing boxes.

[0039] During the cleaning process of the packing boxes, although there is a continuously flowing water flow in the cleaning pool 1, the cleaning effect on the bottom surface of the packing boxes in contact with the conveyor belt 2 is poor. To improve the cleaning effect of the packing boxes, when the infrared sensing device on the cleaning pool 1 is triggered, it means that the conveyor belt 2 has conveyed the packing boxes to the L-shaped turning plate 5. At this time, with the front-to-back view as the reference, the control drive motor 102 drives the output shaft 103, the rotating shaft 4 and the L-shaped turning plate 5 to rotate clockwise, causing the packing boxes on the L-shaped turning plate 5 to be turned over. After being turned over, the upper surface of the packing boxes is in contact with the conveyor belt 2. As the conveyor belt 2 continues to convey the inverted packing boxes to the right, the subsequent spray pipe 3 in the cleaning pool 1 cleans the bottom surface of the packing boxes to ensure the cleaning effect of the packing boxes. It should be noted that after the L-shaped turning plate 5 rotates clockwise to drive the packing boxes to be turned over, the drive motor 102 drives the output shaft 103, the rotating shaft 4 and the L-shaped turning plate 5 to rotate counterclockwise to reset and perform the turning-over work on the subsequent packing boxes. It should be noted that the conveyor belt 2 is squeezed by the limiting rod 201 to make the conveyor belt 2 in a downward concave shape to avoid the clockwise rotation of the L-shaped turning plate 5, so that the packing boxes can be smoothly turned over.

[0040] Since the nozzles of the spray pipe 3 are arranged downward in the prior art, that is, the nozzles of the spray pipe 3 face the packaging box directly. When cleaning a square or circular packaging box, the side of the packaging box is parallel to the water flow sprayed by the spray pipe 3, and the impact force is limited, resulting in poor cleaning effect. When cleaning a trapezoidal packaging box, if the side of the trapezoidal packaging box inclines inward, the water flow sprayed by the spray pipe 3 cannot contact the side of the packaging box. Although there is a continuously flowing water flow in the cleaning pool 1, the water flow impact force is limited, and the cleaning effect on the side of the packaging box is limited. Therefore, the present invention changes the orientation of the nozzles of the spray pipe 3 to ensure effective cleaning of different packaging boxes. The specific method is as follows: First, taking the L-shaped turning plate 5 as the boundary, the nozzles of the two spray pipes 3 located on the left side of the L-shaped turning plate 5 are arranged relatively inclined. Taking the partition 1002 as the boundary, the two nozzles of the spray pipe 3 located in front of the partition 1002 are arranged relatively inclined. That is, during the process when the packaging box passes through the spray pipe 3, the spray pipe 3 can fully clean the packaging box to ensure the cleaning effect of the packaging box.

[0041] Embodiment 2

[0042] Based on Embodiment 1, as Figures 1 - 3 and Figures 7 - 9 shown, it further includes a driving member 301, a connecting rod 302, a blocking plate 303 and a drainage box 304; there are two symmetrically arranged water discharge ports on the front and back of the cleaning pool 1. Taking the contact area between the cleaning pool 1 and the vertical part of the L-shaped turning plate 5 as the boundary line, the water discharge ports are arranged on the right side of the boundary line; a blocking block 1004 is slidably arranged on each water discharge port; four detection probes 1005 are installed on both the cleaning pool 1 and the partition 1002, and the detection probes 1005 are connected to an external online turbidity detector; a driving member 301 is fixedly connected to each fixing block 101, and the driving member 301 is an electric push rod; the output end of each driving member 301 is fixedly connected to the corresponding blocking block 1004 through a mounting block 30101; an activity groove 5002 is arranged in each L-shaped turning plate 5; a connecting part 10301 is slidably arranged on each output shaft 103, and the connecting part 10301 is fixedly connected to the mounting block 30101 at the output end of the adjacent driving member 301; a connecting rod 302 is slidably connected in each rotating shaft 4, and each connecting rod 302 is fixedly connected to the connecting part 10301 of the adjacent output shaft 103; a blocking plate 303 is fixedly connected to each connecting rod 302, and the blocking plate 303 is arranged in the vertical part of the L-shaped turning plate 5; three second flow channels 30301 are arranged on each blocking plate 303, and the second flow channels 30301 are aligned with the first flow channel 5001; two symmetrically arranged drainage boxes 304 are fixedly connected to the cleaning pool 1, and the drainage boxes 304 are located below the blocking blocks 1004; two symmetrically arranged convex parts are arranged on both the connecting rod 302 and the output shaft 103, and grooves matching the convex parts are arranged on both the rotating shaft 4 and the connecting part 10301 to ensure that the driving motor 102 can normally drive the rotating shaft 4 and the L-shaped turning plate 5 to rotate.

[0043] All the detection probes 1005 installed on the cleaning tank 1 and the partition plate 1002 are close to the rotation path of the L-shaped turning plate 5.

[0044] It further includes elastic members 401, guide plates 402, extrusion rods 403 and arc-shaped blocks 404; four elastic members 401 are fixedly connected inside the horizontal part of each L-shaped turning plate 5, and the elastic members 401 are spring telescopic rods; two symmetrically arranged telescopic parts 5003 are provided on the horizontal part of each L-shaped turning plate 5, and the telescopic ends of each elastic member 401 are located inside the adjacent telescopic part 5003, and the telescopic part 5003 is in close contact with the inner wall of the cleaning tank 1 and the partition plate 1002; the telescopic ends of all the elastic members 401 located in the same telescopic part 5003 are fixedly connected to the guide plate 402 together; a curved arc surface 40201 is provided on one side of each guide plate 402 away from the L-shaped turning plate 5; an extrusion rod 403 is provided on one side of each guide plate 402 close to the L-shaped turning plate 5; two arc-shaped blocks 404 are fixedly connected to the cleaning tank 1, and two arc-shaped blocks 404 are also fixedly connected to the partition plate 1002.

[0045] A limiting part 40401 is provided on each arc-shaped block 404.

[0046] Each curved arc surface 40201 is arranged in a shape that is larger at the top and smaller at the bottom, which is convenient for the guide plate 402 to move after being restricted by the arc-shaped block 404.

[0047] The two extrusion rods 403 on the same L-shaped turning plate 5 are combined in a shape like an eight-character, so as to guide and limit the packaging boxes conveyed to the L-shaped turning plate 5, prevent the packaging boxes from being tilted, and ensure the extrusion effect of the extrusion rods 403 on the packaging boxes.

[0048] It further includes a telescopic block 405 and a limiting rod 406; a telescopic block 405 is provided at one end of each guide plate 402 close to the vertical part of the L-shaped turning plate 5; a number of limiting holes 40501 are provided on the telescopic structure of each telescopic block 405; one end of the extrusion rod 403 is rotatably connected to the adjacent guide plate 402, and the other end is rotatably connected to the telescopic structure on the adjacent telescopic block 405; a limiting rod 406 is inserted into each telescopic block 405, and the limiting rod 406 is inserted into the limiting hole 40501.

[0049] An alarm device is provided on the cleaning tank 1, and the alarm device is connected to the detection probe 1005 through Bluetooth.

[0050] The working process of this embodiment is as follows:

[0051] After the packaging box is sealed by a sealing machine, there are still a small number of packaging boxes with loose seals, that is, there are small gaps between the sealing film and the packaging box. When cleaning the sealed packaging boxes, since the packaging boxes will be immersed in water, if the packaging boxes have loose seals at this time, the food packaged in the packaging boxes will leak, causing the water in the entire cleaning tank 1 and other packaging boxes to be contaminated. Workers need to treat the contaminated packaging boxes and the sewage in the cleaning tank 1, increasing additional labor and costs. Therefore, in the present invention, the water surface in the cleaning tank 1 is made lower than the surface of the packaging box to prevent the food in the packaging box from leaking into the water.

[0052] However, to ensure the overall cleaning effect of the packaging box, the packaging box needs to be turned over for cleaning. However, after the packaging box is turned over, the food in the packaging box will leak through the gap. Therefore, the turbidity of the water is detected in real time by the detection probe 1005 in the cleaning tank 1 (the detection principle is: when the light emitted by the turbidity detector propagates in water, it will be scattered or absorbed when encountering suspended particles in the water, and the turbidity of the water is measured according to the degree of light scattering or absorption). After the L-shaped turning plate 5 rotates to force the packaging box to turn over, if there is a food leakage problem, the detection probe 1005 will be triggered at this time. The detection probe 1005 sends a signal to control the conveyor belt 2 to stop running, and controls the output end of the driving member 301 to contract. The driving member 301 drives the connecting parts 10301 of the adjacent blocking block 1004 and the output shaft 103 and the connecting rod 302 to move away from the cleaning tank 1, so that the blocking block 1004 no longer blocks the water outlet of the cleaning tank 1, and the connecting rod 302 forces the second flow channel 30301 on the blocking plate 303 to no longer align with the first flow channel 5001 of the adjacent L-shaped turning plate 5. Taking the L-shaped turning plate 5 as the boundary, the water in the left and right parts of the cleaning tank 1 is separated, preventing the contaminated water in the right part of the cleaning tank 1 from affecting the water in the left part of the cleaning tank 1, that is, preventing the water in the cleaning tank 1 from being completely contaminated and reducing the water usage cost. At the same time, the contaminated water in the right part of the cleaning tank 1 is discharged into the drainage box 304 through the water outlet of the cleaning tank 1, preventing the sewage from contaminating the subsequent packaging boxes that have not been turned over and the previously turned-over packaging boxes.

[0053] It should be noted that by setting an alarm device on the cleaning tank 1 and connecting the alarm device to the detection probe 1005 through wireless technology, when the detection probe 1005 is triggered, the alarm device is activated to prompt the operator to take out the leaking packaging box. Moreover, the detection probe 1005 is installed near the position after the packaging box is turned over, enabling the detection probe 1005 to quickly detect the leaked food, avoiding the leaked food from completely polluting the water in the right part of the cleaning tank 1 and contaminating the packaging boxes that have been turned over in the front. Note that when the contaminated water is discharged through the drain outlet of the cleaning tank 1 and the operator takes out the leaking packaging box, the operator controls the spray pipe 3 in the right part of the cleaning tank 1 to continue the spraying operation, and the nozzle of the spray pipe 3 near the L-shaped turning plate 5 in the right part of the cleaning tank 1 faces the corresponding position of the conveyor belt 2 and the detection probe 1005 to process the leakage remaining on the conveyor belt 2. Since the detection probe 1005 is installed near the position after the packaging box is turned over, after the detection probe 1005 is triggered to stop the conveyor belt 2, the contact position between the conveyor belt 2 and the leaking packaging box is within the cleaning range of the nozzle of the spray pipe 3 near the L-shaped turning plate 5.

[0054] It should be noted that sealing structures are provided at the contact parts between the connecting block 1003 and the conveyor belt 2 and between the conveyor belt 2 and the cleaning tank 1, and the water is only located between the cleaning tank 1 and the conveyor belt 2 to avoid completely polluting the water in the cleaning tank 1.

[0055] It should be noted that after the contaminated water is discharged through the drain outlet of the cleaning tank 1, the operator takes out the leaking packaging box, and after manually checking the cleanliness of the conveyor belt 2, the operator controls the driving member 301 to drive the adjacent blocking block 1004 and the blocking plate 303 to reset, and then starts the conveyor belt 2 to continue cleaning the packaging boxes.

[0056] When the L-shaped turning plate 5 drives the packaging box to turn over, the arc surface 40201 of the guiding plate 402 driven by the L-shaped turning plate 5 gradually approaches the arc block 404. Under the limiting action of the arc block 404, the guiding plate 402 drives the telescopic end of the elastic member 401 to approach the packaging box, so that the pressing rod 403 presses the front and rear sides of the packaging box, causing the sealed part of the packaging box to expand outward. For the packaging box with loose sealing, the gap between the sealed part and the packaging box will gradually expand, which is conducive to the detection probe 1005 to monitor the leaked food after the packaging box is turned over, minimizing the contaminated range of the water in the right part of the cleaning tank 1 and further avoiding contaminating the packaging boxes that have been turned over in the front. It should be noted that when the L-shaped turning plate 5 drives the packaging box to turn over, the part of the packaging box supported on the L-shaped turning plate 5 will separate the water in the cleaning tank 1. At the same time, the telescopic part 5003 of the L-shaped turning plate 5 is in close contact with the adjacent arc block 404 to ensure the water separation effect of the L-shaped turning plate 5 during the turning process and avoid the leaked food from contaminating the water in the left part of the cleaning tank 1.

[0057] When the L-shaped turning plate 5 drives the packaging box to turn over, after the telescopic part 5003 of the L-shaped turning plate 5 passes through the curved arc block 404, the telescopic part 5003 will contact the limiting part 40401. When the L-shaped turning plate 5 needs to be reset, the limiting part 40401 plays a guiding role for the L-shaped turning plate 5, avoiding that after the L-shaped turning plate 5 drives the packaging box to turn over and passes through the curved arc block 404, when the L-shaped turning plate 5 is reset, the curved arc block 404 blocks the L-shaped turning plate 5 and affects the reset of the L-shaped turning plate 5.

[0058] Further, considering that there are different sizes of packaging boxes, to improve the usability and applicability of the device, the operator only needs to lift the limiting rod 406 on the telescopic block 405 upward according to the size of the packaging box, and then push the telescopic structure on the telescopic block 405 to make the telescopic structure on the telescopic block 405 extend or contract, adjust the length of the telescopic block 405, and then press the limiting rod 406 downward again to make the limiting rod 406 re-insert into the limiting hole 40501 of the telescopic structure. In this way, the extrusion of packaging boxes with different sizes is realized.

[0059] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A surface cleaning device for a packaging box, comprising a cleaning tank (1), a conveyor belt (2) and a spray pipe (3); the cleaning tank (1) is provided with a conveyor belt (2); the cleaning tank (1) is provided with a water pipe (1001), and the water pipe (1001) is connected to an external pump; the cleaning tank (1) is provided with a plurality of spray pipes (3), and all the spray pipes (3) are connected to the water pipe (1001); characterized in that: The cleaning tank (1) further comprises a rotating shaft (4), an L-shaped flip plate (5), a limiting rod (201) and a rotating assembly; a partition (1002) is arranged in the cleaning tank (1), and the partition (1002) is used to separate the cleaning tank (1) into two front and rear cleaning tanks; a connecting block (1003) for drainage is arranged on the left side of the cleaning tank (1), and the connecting block (1003) is connected to an external pump machine 2; the cleaning tank (1) is connected to two rotating assemblies, and the two rotating assemblies are respectively located in one cleaning tank; each rotating assembly is connected to a rotating shaft (4), and the rotating shaft (4) is rotatably connected to the inner wall of the cleaning tank (1) and the partition (1002); each rotating shaft (4) is fixedly connected to a An L-shaped flip plate (5) for flipping a packaging box; a rotating assembly for driving the L-shaped flip plate (5) to rotate via a rotating shaft (4); an infrared sensing device is provided on the cleaning pool (1), and the infrared sensing device is located between the horizontal portion and the vertical portion of the L-shaped flip plate (5); each L-shaped flip plate (5) is provided with a plurality of first flow slots (5001); a plurality of limiting rods (201) are fixedly connected to a partition plate (1002) of the cleaning pool (1), and a conveyor belt (2) is squeezed by the limiting rods (201), so that the conveyor belt (2) is concave downward, thereby avoiding the clockwise rotation of the L-shaped flip plate (5), so that the packaging box can be turned over smoothly; The invention also comprises a driving member (301), a connecting rod (302), a blocking plate (303) and a drainage box (304); a plurality of drain ports are arranged on the cleaning pool (1), and the contact area between the cleaning pool (1) and the vertical part of the L-shaped flip plate (5) is used as a dividing line, and the drain ports are arranged on the right side of the dividing line; a blocking block (1004) is slidably arranged on each drain port; a plurality of detection probes (1005) for detecting leakage of the packaging box are installed on the cleaning pool (1) and the partition plate (1002); each rotating assembly is connected to a plurality of driving members (301); the output end of each driving member (301) is fixedly connected to the corresponding blocking block (1004) through the mounting block (30101); each L-shaped flip plate (5) is provided with a movable groove (5002); each rotating assembly is connected to a connecting portion (10301), and the connecting portion (10301) is connected to an adjacent driving member. The mounting block (30101) at the output end of the cleaning tank (301) is fixedly connected; a connecting rod (302) is slidably connected in each rotating shaft (4), and each connecting rod (302) is fixedly connected to a connecting portion (10301) connected to an adjacent rotating assembly; a blocking plate (303) is fixedly connected to each connecting rod (302), and the blocking plate (303) is arranged in a vertical portion of the L-shaped flip plate (5); each blocking plate (303) is provided with a plurality of second flow grooves (30301), and the second flow grooves (30301) are aligned with the first flow grooves (5001); a plurality of drainage boxes (304) are fixedly connected to the cleaning tank (1), and the drainage boxes (304) are located below the blocking block (1004); a plurality of protrusions are provided on the connecting rod (302) and the rotating assembly, and grooves matching the protrusions are provided on the rotating shaft (4) and the connecting portion (10301); A plurality of elastic members (401) are fixedly connected to the transverse portion of each L-shaped flip plate (5); a plurality of telescopic members (5003) are arranged on the transverse portion of each L-shaped flip plate (5), and the telescopic end of each elastic member (401) is located in an adjacent telescopic member (5003), and the telescopic member (5003) is in close contact with the inner wall of the cleaning pool (1) and the partition (1002); The cleaning tank is only suitable for one packaging box to pass through, so as to prevent the packaging boxes from being stacked in the cleaning tank (1) and affecting the cleaning effect of the packaging boxes.

2. A surface cleaning device for a packaging box according to claim 1, characterized in that: The spray head of each spray pipe (3) is inclined toward the packaging box.

3. A surface cleaning device for a packaging box according to claim 2, characterized in that: All detection probes (1005) installed on the cleaning tank (1) and the partition (1002) are close to the rotation path of the L-shaped flip plate (5).

4. A surface cleaning device for a packaging box according to claim 3, characterized in that: The invention also comprises a guide plate (402), a squeezing rod (403) and a curved block (404); the telescopic ends of all elastic members (401) located in the same telescopic portion (5003) are fixedly connected to the guide plate (402); a curved surface (40201) is provided on a side of each guide plate (402) away from the L-shaped flip plate (5); a squeezing rod (403) for squeezing a packaging box is provided on a side of each guide plate (402) close to the L-shaped flip plate (5); two curved blocks (404) are fixedly connected to the cleaning pool (1), and two curved blocks (404) are also fixedly connected to the partition plate (1002).

5. A surface cleaning device for a packaging box according to claim 4, characterized in that: A limiting portion (40401) is provided on each bending arc block (404).

6. A surface cleaning device for a packaging box according to claim 4, characterized in that: Each curved surface (40201) is configured to be larger at the top and smaller at the bottom.

7. A surface cleaning device for a packaging box according to claim 4, characterized in that: The two extrusion rods (403) on the same L-shaped flip plate (5) are combined to form an eight-shaped shape.

8. A surface cleaning device for a packaging box according to claim 4, characterized in that: It also includes a telescopic block (405) and a limiting rod (406); a telescopic block (405) is provided at one end of each guide plate (402) close to the vertical portion of the L-shaped flip plate (5); a plurality of limiting holes (40501) are provided on the telescopic structure of each telescopic block (405); one end of the extrusion rod (403) is rotatably connected to the adjacent guide plate (402), and the other end is rotatably connected to the telescopic structure on the adjacent telescopic block (405); each telescopic block (405) is plugged with a limiting rod (406) for limiting the movement of the telescopic structure, and the limiting rod (406) is inserted into the limiting hole (40501).

9. The surface cleaning device for a packaging box according to claim 1, characterized in that: An alarm device is provided on the cleaning pool (1), and the alarm device is connected to the detection probe (1005) via Bluetooth.

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