A stacking device and method for packaging box production and processing.

Abstract

This invention relates to the field of agricultural product packaging box production and processing technology, specifically disclosing a stacking device and method for packaging box production and processing. The device includes a base, with a mounting frame connected to the top of the base via multiple pillars. A conveyor belt is installed inside the mounting frame. A first mounting plate and a second mounting plate are respectively arranged on both sides of the mounting frame. A bottom plate is installed on the top of the base, and two auxiliary stacking mechanisms are arranged on the top of the bottom plate. A movable frame is arranged on the top of the first mounting plate, and a detection mechanism is arranged on one side of the movable frame. A vertical rod is arranged at the bottom of the second mounting plate, and an auxiliary support mechanism is arranged on one side of the vertical rod. In this invention, when multiple packaging boxes are stacked, the two limiting plates and the auxiliary support mechanisms can limit and fix the multiple packaging boxes on all four sides, preventing the boxes from collapsing during stacking, improving the safety of stacking multiple packaging boxes, and thus improving the efficiency of packaging box stacking.

Description

Technical Field

[0001] This invention relates to the field of agricultural product packaging box production and processing technology, specifically to a stacking device and method for packaging box production and processing. Background Technology

[0002] Packaging boxes, as the name suggests, are boxes used to package products. They can be classified by material, such as cardboard boxes, tin boxes, wooden boxes, cloth boxes, leather boxes, acrylic boxes, corrugated boxes, PVC boxes, etc., or by product name, such as mooncake boxes, tea boxes, goji berry boxes, candy boxes, exquisite gift boxes, local specialty product boxes, wine boxes, chocolate boxes, food, medicine, and health product boxes, food packaging boxes, tea packaging boxes, stationery boxes, etc. After agricultural products are produced and processed, they usually need to be packaged in customized packaging boxes to ensure the safety of agricultural products during transportation and enhance their grade. Moreover, because the surface of the packaging box is printed with relevant information and advertising slogans about the agricultural products, it can increase sales, promote the brand, enhance consumer trust and loyalty, and increase the added value of the product. During the production and processing of agricultural products, in order to save space, the packaging boxes are often stacked. This allows multiple stacked boxes to be used for subsequent packaging of agricultural products more quickly with the help of relevant packaging equipment, thereby improving the efficiency of agricultural product packaging and indirectly improving the production efficiency of agricultural products.

[0003] In existing technologies, while the automatic stacking of agricultural product packaging boxes using related stacking devices can achieve a high degree of automation and eliminate the need for manual stacking, multiple packaging boxes are susceptible to vibrations from the device's operation once they reach a certain height. This can cause the stacked boxes to tilt and collapse to one side, significantly reducing the efficiency of the automatic stacking process. Consequently, existing stacking devices cannot meet the demands for rapid production and processing of agricultural product packaging boxes, thus impacting the overall efficiency of agricultural product packaging. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a stacking device and method for packaging box production and processing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A stacking device for packaging box production includes a base. A mounting frame is connected to the top of the base via multiple pillars. A conveyor belt is rotatably mounted inside the mounting frame via two drive shafts. A first mounting plate and a second mounting plate are respectively provided on the outer walls of both sides of the mounting frame. A bottom plate is mounted on the top of the base. Two auxiliary stacking mechanisms for assisting in the stacking of packaging boxes are provided on the top of the bottom plate. A movable frame is provided on the top of the first mounting plate. A detection mechanism for inspecting the appearance of the packaging boxes is provided on the side of the movable frame closest to the conveyor belt. A vertical rod is provided at the bottom of the second mounting plate. An auxiliary support mechanism for supporting the packaging boxes in the auxiliary stacking mechanisms is provided on the side of the vertical rod closest to the conveyor belt.

[0007] Optionally, the auxiliary stacking mechanism includes two sleeve plates disposed on the top of the base plate, a first rotating plate rotatably mounted on the top of the base plate, and the outer walls on both sides of the first rotating plate being connected to the two sleeve plates by two first electric telescopic rods. The telescopic ends of the two first electric telescopic rods are located inside the sleeve plates and connected to push plates.

[0008] Optionally, two second electric telescopic rods are installed on the outer walls of both sides of the two sleeve plates. Limit plates are installed on the telescopic ends of the two second electric telescopic rods. The base plate and the base are connected by two lifting frames.

[0009] Optionally, the outer walls of both sides of the mounting bracket are provided with first sliding grooves, and first sliders are installed inside the two first sliding grooves. The ends of the two first sliders away from the first sliding grooves are rotatably connected to the first mounting plate and the second mounting plate, respectively. Two electromagnets are installed on the outer walls of the first mounting plate and the second mounting plate near the mounting bracket. Cylindrical friction blocks are installed at both ends of one of the drive shafts. The top of the first mounting plate and the second mounting plate are provided with rubber layers that cooperate with the friction blocks.

[0010] Optionally, a second slide groove is provided on the top of the first mounting plate, a second slider is installed inside the second slide groove, the top of the second slider is connected to the bottom of the movable frame, and multiple first industrial cameras are installed at the bottom of the movable frame.

[0011] Optionally, the detection mechanism includes a third chute opened on the outer wall of the moving frame near the conveyor belt, a third slider installed inside the third chute, a second rotating plate rotatably mounted on the end of the third slider away from the third chute via a rotating shaft, and multiple second industrial cameras installed at the bottom of the second rotating plate.

[0012] Optionally, the bottom of the second rotating plate has two fourth sliding grooves, and a fourth slider is installed inside each of the two fourth sliding grooves. The bottom of the second rotating plate is provided with two clamping plates, one of the fourth sliders is fixedly connected to one of the clamping plates, and the other fourth slider is rotatably connected to the other clamping plate.

[0013] Optionally, the bottom of the second mounting plate is provided with a first sliding groove, and a first sliding block is slidably installed inside the first sliding groove. The end of the first sliding block away from the first sliding groove is connected to the top of the vertical rod.

[0014] Optionally, the auxiliary support mechanism includes a second sliding groove opened on the outer wall of the vertical rod near the conveyor belt. A second sliding block is installed inside the second sliding groove. A rectangular plate is rotatably installed on the end of the second sliding block away from the second sliding groove. A support plate is installed on one end of the rectangular plate. Two through grooves are opened inside the support plate. Two fixing blocks are installed on both outer walls of the rectangular plate. A third electric telescopic rod is installed on the outer wall of the two fixing blocks near the support plate. A moving block is installed on the telescopic end of the two third electric telescopic rods. A soft pad is installed on the outer wall of the moving block near the through groove.

[0015] Optionally, a stacking method for packaging box production and processing includes the stacking device described above, and the stacking method further includes the following steps:

[0016] Step 1: The packaging boxes to be stacked are transferred to the top of the conveyor belt by other conveying equipment. The two lifting frames are controlled to extend upward, driving the base plate to move upward to a position flush with the top of the conveyor belt. The conveyor belt drives multiple packaging boxes to the right end. The first packaging box that falls from the top of the conveyor belt will fall into the inside of the sleeve plate. Then, the two lifting frames are controlled to slowly retract downward, driving the sleeve plate to descend, so that the second packaging box that falls from the top of the conveyor belt falls on top of the first packaging box. The subsequent packaging boxes repeat the above operation, so that multiple packaging boxes are automatically stacked inside the sleeve plate.

[0017] Step 2: After stacking a sufficient number of packaging boxes inside one of the sleeves, control the two limiting plates inside the sleeve to move towards each other, so that the sides of the stacked packaging boxes are tightly abutted. Then, control the first rotating plate to drive the two sleeves to rotate and switch positions, so that the sleeve with a sufficient number of packaging boxes inside is rotated to the end away from the mounting frame. Control the two first electric telescopic rods to drive the push plate to automatically push the stacked packaging boxes from the inside of the sleeve to the top of the pre-placed tray, completing the stacking of multiple packaging boxes. At this time, the other sleeve rotates to the position close to the mounting frame to continue the stacking process for subsequent packaging boxes.

[0018] Step 3: As the packaging boxes are conveyed to the right at the top of the conveyor belt, multiple second industrial cameras are controlled to automatically identify and detect the appearance of the packaging boxes. If a packaging box has a defect, the third slider is controlled to move the second rotating plate downwards together until the two clamping plates abut against the top of the conveyor belt. The two clamping plates are then controlled to clamp and fix the packaging box. As the third slider moves the second rotating plate upwards to the specified height, the second rotating plate is controlled to flip over, and one of the clamping plates is controlled to rotate downwards to a horizontal position. The fourth slider is controlled to move the other clamping plate to push the packaging box from the top of the second rotating plate downwards and discharge it, automatically rejecting the defective packaging boxes.

[0019] Step 4: Since the length of the packaging box is less than the maximum adjustment distance of the two clamping plates, the second industrial camera detects that the packaging box at the top of the conveyor belt is skewed. The third slider is controlled to drive the second rotating plate to move downward, so that the two clamping plates move to both sides of the skewed packaging box. With the help of the two clamping plates moving in the same direction, the packaging box with positional deviation is corrected.

[0020] Step 5: After the multiple packaging boxes are stacked to a certain height, control the first sliding block to drive one side of the outer wall of the support plate to abut against one side of the outer wall of the multiple packaging boxes stacked inside the sleeve, so that the support plate provides auxiliary support for the multiple packaging boxes stacked inside the sleeve, ensuring that the multiple packaging boxes are stacked neatly and orderly inside the sleeve.

[0021] The beneficial effects of this invention are:

[0022] 1. In this invention, when multiple packaging boxes are stacked inside the sleeve, two limiting plates can limit and fix the two sides of the multiple packaging boxes. In addition, with the auxiliary support mechanism, the other side of the multiple packaging boxes can be supported. Thus, the multiple packaging boxes can be limited and fixed on all four sides after stacking, preventing the multiple packaging boxes from collapsing during the stacking process, improving the safety of the multiple packaging boxes during the stacking process, and thus improving the efficiency of the device in stacking multiple packaging boxes.

[0023] 2. In this invention, by setting two sleeve plates to alternately stack multiple packaging boxes, the effect of continuous stacking of multiple packaging boxes is achieved, further improving the stacking efficiency of multiple packaging boxes.

[0024] 3. In this invention, during the process of the packaging box falling on the top of the conveyor belt and being conveyed to the right, multiple second industrial cameras at the bottom of the second rotating plate can be controlled to automatically identify and detect the appearance of the packaging box. If a packaging box has a defect, multiple components of the detection mechanism can work together to automatically remove the defective packaging box, thus avoiding the problem of continuing to stack defective packaging boxes and reducing work efficiency.

[0025] 4. In this invention, since the length of the packaging box is less than the maximum adjustment distance of the two clamping plates, when the second industrial camera detects that the packaging box at the top of the conveyor belt is skewed, affecting its subsequent stacking, it can control the third slider to drive the second rotating plate to move downward, so that the two clamping plates move to both sides of the skewed packaging box. By moving the two clamping plates in a closer direction, the packaging box with positional deviation can be corrected, preventing it from entering the interior of the sleeve plate and affecting the stacking stability of other packaging boxes. Attached Figure Description

[0026] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0027] Figure 1 This is a schematic diagram of the overall structure of a stacking device for packaging box production and processing proposed in this invention;

[0028] Figure 2 for Figure 1 A structural diagram from another angle;

[0029] Figure 3 This is a schematic diagram of the structure of the present invention excluding the base and the auxiliary stacking mechanism;

[0030] Figure 4 This is a schematic diagram of the auxiliary stacking mechanism in this invention;

[0031] Figure 5 This is a schematic diagram of the mounting frame and conveyor belt in this invention;

[0032] Figure 6 This is a schematic diagram of the structure of the first mounting plate and the movable frame in this invention;

[0033] Figure 7 This is a schematic diagram of the detection mechanism in this invention;

[0034] Figure 8 This is a schematic diagram of the structure of the two clamping plates in this invention;

[0035] Figure 9 This is a schematic diagram of the structure of the second mounting plate and the vertical rod in this invention;

[0036] Figure 10 This is a schematic diagram of the auxiliary support mechanism in this invention.

[0037] In the diagram: 1. Base; 2. Support column; 3. Mounting frame; 4. Conveyor belt; 5. Base plate; 6. First rotating plate; 7. Sleeve plate; 8. Moving frame; 9. Vertical rod; 10. Friction block; 11. First mounting plate; 12. Second mounting plate; 13. Second rotating plate; 14. Support plate; 15. Limiting plate; 16. Second electric telescopic rod; 17. Push plate; 18. First electric telescopic rod; 19. First slide groove; 20. First slider; 21. Electric... 21. Magnet; 22. Second slide rail; 23. Second slider; 24. First industrial camera; 25. Third slide rail; 26. Third slider; 27. Clamping plate; 28. Fourth slide rail; 29. ​​Second industrial camera; 30. Fourth slider; 31. Second slide rail; 32. Second slider block; 33. Rectangular plate; 34. Through groove; 35. Third electric telescopic rod; 36. Soft pad; 37. Lifting frame; 38. First slide rail; 39. First slider block. Detailed Implementation

[0038] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Reference Figures 1-10 A stacking device for packaging box production and processing includes a base 1. The top of the base 1 is connected to a mounting frame 3 via multiple pillars 2. A conveyor belt 4 is rotatably mounted inside the mounting frame 3 via two drive shafts. A first mounting plate 11 and a second mounting plate 12 are respectively provided on the outer walls of both sides of the mounting frame 3. A bottom plate 5 is installed on the top of the base 1. Two auxiliary stacking mechanisms for assisting in the stacking of packaging boxes are provided on the top of the bottom plate 5. A movable frame 8 is provided on the top of the first mounting plate 11. A detection mechanism for inspecting the appearance of the packaging box is provided on the side of the movable frame 8 near the conveyor belt 4. A vertical rod 9 is provided at the bottom of the second mounting plate 12. An auxiliary support mechanism for supporting the packaging boxes in the auxiliary stacking mechanism is provided on the side of the vertical rod 9 near the conveyor belt 4.

[0040] As an optimized technical solution of the present invention, the auxiliary stacking mechanism includes two sleeve plates 7 disposed on the top of the base plate 5. A first rotating plate 6 is rotatably mounted on the top of the base plate 5. The outer walls on both sides of the first rotating plate 6 are connected to the two sleeve plates 7 by two first electric telescopic rods 18. The telescopic ends of the two first electric telescopic rods 18 are located inside the sleeve plates 7 and connected to push plates 17. A first driving device is preset inside the base plate 5. The output end of the first driving device is connected to the rotating part of the first rotating plate 6, which can drive the first rotating plate 6 to rotate and adjust on the top of the base plate 5. Since the ends of the two first electric telescopic rods 18 near their telescopic ends are connected to the sleeve plates 7, the first rotating plate 6 can also drive the sleeve plates 7 to rotate and adjust on the top of the base plate 5 by means of the connection between the two first electric telescopic rods 18 and the sleeve plates 7 during rotation. During the telescopic process of the two first electric telescopic rods 18, the telescopic ends can drive the push plates 17 to move and adjust inside the sleeve plates 7.

[0041] As a technical optimization of the present invention, two second electric telescopic rods 16 are installed on the outer walls of both sides of the two sleeve plates 7. Limiting plates 15 are installed at the telescopic ends of the two second electric telescopic rods 16. The base plate 5 and the base 1 are connected by two lifting frames 37. During the telescopic process, the telescopic ends of the two second electric telescopic rods 16 can drive the limiting plates 15 to move and adjust inside the sleeve plate 7. When the two limiting plates 15 inside the sleeve plate 7 move towards each other, they can push and limit the sides of multiple packaging boxes stacked inside the sleeve plate 7, ensuring that the packaging boxes are stacked neatly. The two lifting frames 37 are common telescopic devices in the prior art, enabling them to move and adjust the base plate 5 up and down on the top of the base 1 after activation.

[0042] As a technical optimization of the present invention, the outer walls of both sides of the mounting bracket 3 are provided with first sliding grooves 19, and the interior of the two first sliding grooves 19 is provided with first sliders 20. The ends of the two first sliders 20 away from the first sliding grooves 19 are respectively rotatably connected to the first mounting plate 11 and the second mounting plate 12. The outer walls of the first mounting plate 11 and the second mounting plate 12 near the mounting bracket 3 are each provided with two electromagnets 21. The two ends of the drive shaft of one of them are provided with cylindrical friction blocks 10. The top of the first mounting plate 11 and the second mounting plate 12 are provided with rubber layers that cooperate with the friction blocks 10. Each of the two first slide grooves 19 is equipped with a first linear motor. The two first linear motors can drive the two first sliders 20 to move back and forth within the corresponding first slide grooves 19, thereby driving the first mounting plate 11 and the second mounting plate 12 to move back and forth on both sides of the mounting frame 3. Each of the two first sliders 20 is equipped with a second driving device. The output ends of the two second driving devices are respectively connected to the rotating parts of the first mounting plate 11 and the second mounting plate 12, which can drive the first mounting plate 11 and the second mounting plate 12 to rotate and adjust on both sides of the outer wall of the mounting frame 3.

[0043] As a technical optimization of the present invention, a second sliding groove 22 is provided on the top of the first mounting plate 11. A second slider 23 is installed inside the second sliding groove 22. The top end of the second slider 23 is connected to the bottom end of the movable frame 8. A plurality of first industrial cameras 24 are installed at the bottom of the movable frame 8. A second linear motor is preset inside the second sliding groove 22. The second linear motor can drive the second slider 23 to move back and forth inside the second sliding groove 22, thereby driving the movable frame 8 to move and adjust together.

[0044] As an optimized technical solution of the present invention, the detection mechanism includes a third slide groove 25 opened on the outer wall of the moving frame 8 near the conveyor belt 4. A third slider 26 is installed inside the third slide groove 25. A second rotating plate 13 is rotatably mounted on the end of the third slider 26 away from the third slide groove 25 via a rotating shaft. Multiple second industrial cameras 29 are installed at the bottom of the second rotating plate 13. A third linear motor is preset inside the third slide groove 25. The third linear motor can drive the third slider 26 to move up and down inside the third slide groove 25, thereby driving the second rotating plate 13 and other components to move up and down for adjustment. A third driving device is preset inside the third slider 26. The output end of the third driving device is connected to the rotating shaft, which can drive the second rotating plate 13 to rotate around the rotating shaft for adjustment. The multiple first industrial cameras 24 and the second industrial cameras 29 are all industrial cameras of the prior art model GR130XGA-WU, which facilitates the inspection of the appearance quality of the packaging box.

[0045] As a technical optimization of the present invention, the bottom of the second rotating plate 13 has two fourth sliding grooves 28, and a fourth slider 30 is installed inside each of the two fourth sliding grooves 28. The bottom of the second rotating plate 13 is provided with two clamping plates 27. One fourth slider 30 is fixedly connected to one clamping plate 27, and the other fourth slider 30 is rotatably connected to the other clamping plate 27. A fourth linear motor is pre-installed inside each of the two fourth sliding grooves 28. The two fourth linear motors can drive the two fourth sliders 30 to move back and forth inside the corresponding fourth sliding grooves 28, thereby driving the two clamping plates 27 to move and adjust. A first drive motor is pre-installed on one outer wall of the other fourth slider 30. The output end of the first drive motor is connected to the rotating part of the other clamping plate 27, thereby driving the other clamping plate 27 to rotate and adjust inside the other fourth slider 30.

[0046] As a technical optimization of the present invention, a first sliding groove 38 is provided at the bottom of the second mounting plate 12. A first sliding block 39 is slidably installed inside the first sliding groove 38, and the end of the first sliding block 39 away from the first sliding groove 38 is connected to the top of the vertical rod 9. A fifth linear motor is preset inside the first sliding groove 38. The fifth linear motor can drive the first sliding block 39 to move back and forth inside the first sliding groove 38, thereby driving the vertical rod 9 to move back and forth at the bottom of the second mounting plate 12.

[0047] As a technical optimization of the present invention, the auxiliary support mechanism includes a second sliding groove 31 opened on the outer wall of the vertical rod 9 near the conveyor belt 4. A second sliding block 32 is installed inside the second sliding groove 31. A rectangular plate 33 is rotatably installed on the end of the second sliding block 32 away from the second sliding groove 31. A support plate 14 is installed on one end of the rectangular plate 33. Two through grooves 34 are opened inside the support plate 14. Two fixing blocks are installed on both outer walls of the rectangular plate 33. A third electric telescopic rod 35 is installed on the outer wall of the two fixing blocks near the support plate 14. A moving block is installed on the telescopic end of the two third electric telescopic rods 35. A soft pad 36 is installed on the outer wall of the moving block near the through groove 34. A sixth linear motor is pre-installed inside the second sliding groove 31. The sixth linear motor can drive the second sliding block 32 to move up and down inside the second sliding groove 31, thereby driving multiple components such as the rectangular plate 33 and the support plate 14 to move up and down together for adjustment. A second drive motor is pre-installed inside the second sliding block 32. The output end of the second drive motor is connected to the rotating part of the rectangular plate 33, which can drive the rectangular plate 33 and the support plate 14 to rotate for adjustment. During the extension and retraction process, the extension and retraction ends of the two third electric telescopic rods 35 can drive the moving block and the soft pad 36 to move and adjust. After the extension and retraction ends of the two third electric telescopic rods 35 extend together, the end of the soft pad 36 away from the moving block extends out from the inside of the corresponding through groove 34.

[0048] As a technical optimization of the present invention, a stacking method for packaging box production and processing includes the stacking device described above, and the stacking method further includes the following steps:

[0049] Step 1: The packaging boxes to be stacked are transferred to the top of the conveyor belt 4 by other conveying equipment. The two lifting frames are controlled to extend upward, driving the base plate 5 to move upward to a position flush with the top of the conveyor belt 4. The conveyor belt 4 drives multiple packaging boxes to be conveyed to the right end. The first packaging box that falls from the top of the conveyor belt 4 will fall into the sleeve plate 7. Then, the two lifting frames are controlled to slowly retract downward, driving the sleeve plate 7 to descend, so that the second packaging box that falls from the top of the conveyor belt 4 falls on top of the first packaging box. The subsequent multiple packaging boxes repeat the above operation, so that multiple packaging boxes are automatically stacked inside the sleeve plate 7.

[0050] Step 2: After stacking a sufficient number of packaging boxes inside one of the sleeve plates 7, control the two limiting plates 15 inside the sleeve plate 7 to move towards each other, so that the sides of the stacked packaging boxes are tightly abutted. Then, control the first rotating plate 6 to drive the two sleeve plates 7 to rotate and exchange positions, and rotate the sleeve plate 7 with a sufficient number of packaging boxes inside to the end away from the mounting frame 3. Control the two first electric telescopic rods 18 to drive the push plate 17 to automatically push the stacked packaging boxes from the inside of the sleeve plate 7 to the top of the pre-placed tray, completing the stacking of multiple packaging boxes. At this time, the other sleeve plate 7 rotates to the position close to the mounting frame 3 to continue the stacking process for subsequent packaging boxes.

[0051] Step 3: As the packaging boxes are conveyed to the right on the top of the conveyor belt 4, multiple second industrial cameras 29 are controlled to automatically identify and detect the appearance of the packaging boxes. If a packaging box has a defect, the third slider 26 is controlled to move the second rotating plate 13 downward together until the two clamping plates 27 abut against the top of the conveyor belt 4. The two clamping plates 27 are then controlled to clamp and fix the packaging box. As the third slider 26 moves the second rotating plate 13 upward together to the specified height, the second rotating plate 13 is controlled to flip over, and one of the clamping plates 27 is controlled to rotate downward to a horizontal state. The other fourth slider 30 is controlled to move the other clamping plate 27 to push the packaging box from the top of the second rotating plate 13 downward and discharge it, automatically rejecting the defective packaging box.

[0052] Step 4: Since the length of the packaging box is less than the maximum adjustment distance of the two clamping plates 27, the second industrial camera 29 detects that the packaging box at the top of the conveyor belt 4 is skewed. It controls the third slider 26 to drive the second rotating plate 13 to move downward, so that the two clamping plates 27 move to both sides of the skewed packaging box. With the help of the two clamping plates 27 moving in the same direction, the packaging box with positional deviation is corrected.

[0053] Step 5: After the multiple packaging boxes are stacked to a certain height, control the first sliding block 39 to drive one side of the outer wall of the support plate 14 to abut against one side of the outer wall of the multiple packaging boxes stacked inside the sleeve plate 7, so that the support plate 14 provides auxiliary support for the multiple packaging boxes stacked inside the sleeve plate 7, ensuring that the multiple packaging boxes are stacked neatly and orderly inside the sleeve plate 7.

[0054] In this invention, after the agricultural product packaging boxes undergo design, plate making, paper selection, printing process, die cutting, folding, and gluing, the folded and three-dimensional packaging boxes can be transferred to the top of the conveyor belt 4 via other conveying equipment. The two lifting frames 37 are controlled to extend upward, driving the base plate 5 to move upward to a position flush with the top of the conveyor belt 4. Through the rotation of the conveyor belt 4, multiple packaging boxes are transported to the right end. The first packaging box that falls from the top of the conveyor belt 4 will fall into the sleeve plate 7 near one of the mounting frames 3. Then, the two lifting frames 37 can be controlled to slowly retract downward, driving the base plate 5 and sleeve plate 7 and other components to slowly descend together, so that the second packaging box that falls from the top of the conveyor belt 4 falls on top of the first packaging box. The subsequent multiple packaging boxes can repeat the above operation, so that they are stacked in sequence inside the sleeve plate 7.

[0055] After a sufficient number of packaging boxes are stacked inside one of the sleeve plates 7, the telescopic ends of the two second electric telescopic rods 16 on both sides of the outer wall of the sleeve plate 7 can be controlled to extend together, driving the two limiting plates 15 to move towards each other. This allows the outer wall of the two limiting plates 15 on the side closest to each other to tightly abut against the sides of the stacked packaging boxes, providing both clamping and limiting for the packaging boxes, as well as pushing and shaping them, ensuring that the packaging boxes are neatly stacked inside the sleeve plate 7. Then, by controlling the first rotating plate 6 to rotate and exchange the positions of the two sleeve plates 7, the sleeve plate 7 with a sufficient number of packaging boxes inside is rotated to the end away from the mounting frame 3. The telescopic ends of the multiple second electric telescopic rods 16 are then controlled to retract together. Then, the telescopic ends of the two first electric telescopic rods 18 extend together, driving the pusher plate 17 to automatically push the stacked packaging boxes from inside the sleeve plate 7 to the top of the pre-placed pallet, thus completing the stacking of multiple packaging boxes. At this time, the other sleeve plate 7 rotates to a position close to the mounting frame 3, so that subsequent packaging boxes can continue to be stacked. This allows the two sleeve plates 7 to work alternately, achieving the effect of continuous stacking of multiple packaging boxes, improving the stacking efficiency of packaging boxes, and indirectly improving the subsequent packaging efficiency of agricultural products. This reduces the cost of agricultural products in the production process, improves production efficiency, enhances the quality of agricultural products, strengthens the competitiveness of agricultural products, and reduces the labor cost of agricultural products in the packaging process.

[0056] As the packaging box falls onto the top of the conveyor belt 4 and is conveyed to the right, multiple second industrial cameras 29 at the bottom of the second rotating plate 13 can be controlled to automatically identify and detect the appearance of the packaging box. If a packaging box has a defect, the conveyor belt 4 can be controlled to reduce its conveying speed or stop operation. The third slider 26 is controlled to slide downward inside the third slide groove 25, driving the second rotating plate 13 to move downward together for adjustment until the bottom ends of the two clamping plates 27 move to abut against the top of the conveyor belt 4. At this time, the two clamping plates 27 are located on both sides of the packaging box. The two fourth sliders 30 are controlled to move towards each other inside the corresponding fourth slide groove 28. The third slider 26 moves the second rotating plate 13 upward to a specified height, causing the two clamping plates 27 to clamp and fix the packaging box. Then, the second rotating plate 13 is flipped, and one of the clamping plates 27 is rotated downward at the top of the fourth slider 30 to a horizontal position. The other fourth slider 30 is controlled to move the other clamping plate 27 towards the clamping plate 27, thus pushing the packaging box to fall downward from the top of the second rotating plate 13. This achieves the effect of automatically removing defective packaging boxes, avoiding the problem of stacking defective packaging boxes and reducing work efficiency.

[0057] Furthermore, since the length of the packaging box is less than the maximum adjustment distance of the two clamping plates 27, when the second industrial camera 29 detects that the packaging box at the top of the conveyor belt 4 is skewed, affecting its subsequent stacking, it can control the third slider 26 to drive the second rotating plate 13 to move downwards, so that the two clamping plates 27 move to both sides of the skewed packaging box. By moving the two clamping plates 27 in a closer direction, the packaging box with positional deviation can be corrected, preventing it from entering the interior of the sleeve plate 7 and affecting the stacking stability of other packaging boxes.

[0058] After multiple packaging boxes are stacked to a certain height inside the sleeve 7, although two limiting plates 15 are installed inside the sleeve 7 to limit the sides of the multiple packaging boxes, the stacked height is still relatively high, and there is still a risk of them tipping over from the opening on one side of the sleeve 7. Figure 2 and Figure 9As shown, the first sliding block 39 can be controlled to move towards the sleeve plate 7 inside the first sliding groove 38, thereby causing one side of the outer wall of the support plate 14 to abut against one side of the outer wall of the multiple packaging boxes stacked inside the sleeve plate 7. This allows the support plate 14 to provide auxiliary support for the multiple packaging boxes stacked to a higher height. Moreover, the second sliding block 32 can be adjusted up and down inside the second sliding groove 31, thereby enabling the support plate 14 to provide support for the multiple packaging boxes at different heights. Furthermore, as the support plate 14 moves up and down, it can also push and correct one side of the multiple packaging boxes, ensuring that the multiple packaging boxes are stacked neatly and orderly inside the sleeve plate 7, reducing the risk of the multiple packaging boxes tipping over, and ensuring the smooth progress of the stacking work.

[0059] If the conveyor belt 4 malfunctions during use, making it impossible to continue conveying the packaging boxes, and if the packaging boxes are relatively sturdy, the second rotating plate 13 can be controlled to rotate 90 degrees to a vertical position. Then, the second slider 23 can be controlled to move to the left end inside the second slide groove 22. Next, the third slider 26 can be controlled to slide downward inside the third slide groove 25, causing the vertically positioned second rotating plate 13 to move downward until it abuts against the left end of the conveyor belt 4. At this time, when the second slider 23 is slowly moved to the right end inside the second slide groove 22, it can drive the second rotating plate 13 to push the multiple packaging boxes on the top of the conveyor belt 4. This will push the multiple packaging boxes from the right end of the conveyor belt 4 into the inside of the sleeve plate 7, allowing the multiple packaging boxes on the top of the conveyor belt 4 to continue stacking. This avoids the problem of the multiple packaging boxes on the top of the conveyor belt 4 obstructing the maintenance of the conveyor belt 4, thus improving the maintenance efficiency of the conveyor belt 4.

[0060] If the packaging box is too soft to be conveyed and unloaded by directly pushing the packaging box on top of the conveyor belt 4 using the second rotating plate 13, as described above, such as... Figure 1 , Figure 5 , Figure 6 , Figure 9As shown, at this time, multiple electromagnets 21 can be de-energized to release their magnetic fixation to the outer wall of the mounting bracket 3. Then, the two first sliders 20 can be controlled to move the first mounting plate 11 and the second mounting plate 12 together to the left inside the corresponding first slide groove 19. As the first mounting plate 11 and the second mounting plate 12 move to the left, they rub against the circular outer wall of the two friction blocks 10 with the rubber layer on their tops, causing the drive shaft to rotate clockwise. This also causes the conveyor belt 4 to rotate slowly clockwise, allowing the multiple packaging boxes on the top of the conveyor belt 4 to still be conveyed to the right for a certain distance. After the two first sliders 20 move to the rightmost end inside the corresponding first slide groove 19, the first mounting plate 11 and the second mounting plate 12 are controlled to rotate slightly downwards, so that the first mounting plate 11 and the second mounting plate 12 move together to the left. The second mounting plate 12 is disengaged from the outer wall of the corresponding friction block 10. Then, the two first sliders 20 are controlled to move to the right and reset inside the corresponding first slide groove 19. After the two first sliders 20 are moved and reset, the first mounting plate 11 and the second mounting plate 12 are controlled to rotate upward and reset together. The above steps of the two first sliders 20 driving the first mounting plate 11 and the second mounting plate 12 to rub and rotate the two friction blocks 10 to the left are repeated, so that one of the drive shafts can continue to drive the conveyor belt 4 to rotate slowly. This can drive all the packaging boxes on the top of the conveyor belt 4 to be conveyed and stacked to the right. The first mounting plate 11 and the second mounting plate 12 cooperate to assist in conveying and unloading such soft packaging boxes, further improving the applicability of the first mounting plate 11 and the second mounting plate 12.

[0061] If it is only necessary to use two clamps 27 to correct multiple packaging boxes and transport the corrected packaging boxes to other conveying equipment, the base plate 5 can be removed from the top of the base 1. Then, the first mounting plate 11 can be moved to the right by the first slider 20, which will move the moving frame 8 and other components away from the top of the mounting frame 3. Then, the third slider 26 can be controlled to move downward to the bottom of the third chute 25. Then, the second rotating plate 13 can be rotated and adjusted so that the higher end of the second rotating plate 13 abuts against the right end of the conveyor belt 4, and the lower end of the second rotating plate 13 abuts against the feed inlet of other conveying equipment. This allows the second rotating plate 13 to be used as a guide plate, which facilitates the guidance and transport of packaging boxes to other conveying equipment and improves the applicability of the second rotating plate 13.

[0062] After the device finishes stacking the packaging boxes, impurities from the packaging boxes will inevitably adhere to the surface of the conveyor belt 4. At this time, the rectangular plate 33 and the support plate 14 can be rotated 90 degrees, causing the horizontal plane on one side of the support plate 14 to rotate to a state parallel to the conveyor belt 4. Then, the telescopic ends of multiple third electric telescopic rods 35 are extended together, which in turn causes two soft pads 36 to extend out from the corresponding through grooves 34 and slide upward in the second sliding groove 31 with the help of the second sliding block 32, causing the support plate 14 to move upward together until the two soft pads 36 come into contact with the conveyor belt 4. At this time, as the conveyor belt 4 rotates, the two soft pads 36 can automatically scrape and clean the impurities on the surface of the conveyor belt 4, avoiding secondary pollution of the packaging boxes to be conveyed later, and facilitating the use of the conveyor belt 4 later.

[0063] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A stacking device for use in the production and processing of packaging boxes, comprising a base (1), characterized in that, The top of the base (1) is connected to the mounting frame (3) by multiple pillars (2). The inside of the mounting frame (3) is rotatably mounted with a conveyor belt (4) via two drive shafts. The outer walls on both sides of the mounting frame (3) are respectively provided with a first mounting plate (11) and a second mounting plate (12). The top of the base (1) is provided with a base plate (5). The top of the base plate (5) is provided with two auxiliary stacking mechanisms for assisting in the stacking of packaging boxes. The top of the first mounting plate (11) is provided with a movable frame (8). The side of the movable frame (8) near the conveyor belt (4) is provided with a detection mechanism for inspecting the appearance of the packaging box. The bottom of the second mounting plate (12) is provided with a vertical rod (9). The side of the vertical rod (9) near the conveyor belt (4) is provided with an auxiliary support mechanism for supporting the packaging box in the auxiliary stacking mechanism. The auxiliary stacking mechanism includes two sleeve plates (7) set on the top of the base plate (5). A first rotating plate (6) is rotatably installed on the top of the base plate (5). The outer walls on both sides of the first rotating plate (6) are connected to the two sleeve plates (7) by two first electric telescopic rods (18). The telescopic ends of the two first electric telescopic rods (18) are located inside the sleeve plates (7) and connected to push plates (17). Two second electric telescopic rods (16) are installed on the outer walls of both sides of the two sleeve plates (7). Limit plates (15) are installed on the telescopic ends of the two second electric telescopic rods (16). The base plate (5) and the base (1) are connected by two lifting frames (37). The mounting bracket (3) has first grooves (19) on both outer walls. First sliders (20) are installed inside the two first grooves (19). The ends of the two first sliders (20) away from the first grooves (19) are rotatably connected to the first mounting plate (11) and the second mounting plate (12) respectively. Two electromagnets (21) are installed on the outer walls of the first mounting plate (11) and the second mounting plate (12) near the mounting bracket (3). One of the drive shafts has cylindrical friction blocks (10) installed at both ends. The top of the first mounting plate (11) and the second mounting plate (12) is provided with a rubber layer that cooperates with the friction blocks (10).

2. A stacking device for packaging box production and processing according to claim 1, characterized in that, The top of the first mounting plate (11) is provided with a second slide groove (22), and a second slider (23) is installed inside the second slide groove (22). The top of the second slider (23) is connected to the bottom of the moving frame (8), and multiple first industrial cameras (24) are installed at the bottom of the moving frame (8).

3. A stacking device for packaging box production and processing according to claim 2, characterized in that, The detection mechanism includes a third chute (25) opened on the outer wall of the moving frame (8) near the conveyor belt (4). A third slider (26) is installed inside the third chute (25). A second rotating plate (13) is rotatably installed on the end of the third slider (26) away from the third chute (25) via a rotating shaft. Multiple second industrial cameras (29) are installed at the bottom of the second rotating plate (13).

4. A stacking device for packaging box production and processing according to claim 3, characterized in that, The bottom of the second rotating plate (13) has two fourth slide grooves (28), and the interior of each of the two fourth slide grooves (28) is equipped with a fourth slider (30). The bottom of the second rotating plate (13) is provided with two clamps (27), one of the fourth sliders (30) is fixedly connected to one of the clamps (27), and the other fourth slider (30) is rotatably connected to the other clamp (27).

5. A stacking device for packaging box production and processing according to claim 4, characterized in that, The bottom of the second mounting plate (12) is provided with a first sliding groove (38), and a first sliding block (39) is slidably installed inside the first sliding groove (38). The end of the first sliding block (39) away from the first sliding groove (38) is connected to the top of the vertical rod (9).

6. A stacking device for packaging box production and processing according to claim 5, characterized in that, The auxiliary support mechanism includes a second sliding groove (31) opened on the outer wall of the vertical rod (9) near the conveyor belt (4). A second sliding block (32) is installed inside the second sliding groove (31). A rectangular plate (33) is rotatably installed on the end of the second sliding block (32) away from the second sliding groove (31). A support plate (14) is installed on one end of the rectangular plate (33). Two through grooves (34) are opened inside the support plate (14). Two fixing blocks are installed on both outer walls of the rectangular plate (33). A third electric telescopic rod (35) is installed on the outer wall of the two fixing blocks near the support plate (14). A moving block is installed on the telescopic end of the two third electric telescopic rods (35). A soft pad (36) is installed on the outer wall of the moving block near the through groove (34).

7. A stacking method for use in the production and processing of packaging boxes, characterized in that, The stacking method includes the stacking device of claim 6, and further includes the following steps: Step 1: The packaging boxes to be stacked are transferred to the top of the conveyor belt (4) by other conveying equipment. The two lifting frames are controlled to extend upward, driving the bottom plate (5) to move upward to a position flush with the top of the conveyor belt (4). The conveyor belt (4) drives multiple packaging boxes to the right end. The first packaging box that falls from the top of the conveyor belt (4) will fall into the sleeve plate (7). Then, the two lifting frames are controlled to slowly retract downward, driving the sleeve plate (7) to descend, so that the second packaging box that falls from the top of the conveyor belt (4) falls on top of the first packaging box. The subsequent multiple packaging boxes repeat the above operation, so that multiple packaging boxes are automatically stacked inside the sleeve plate (7). Step 2: After stacking a sufficient number of packaging boxes inside one of the sleeves (7), control the two limiting plates (15) inside the sleeve (7) to move towards each other, so that the sides of the stacked packaging boxes are tightly abutted. Then, control the first rotating plate (6) to drive the two sleeves (7) to rotate and change positions, and rotate the sleeve (7) with a sufficient number of packaging boxes inside to the end away from the mounting frame (3). Control the two first electric telescopic rods (18) to drive the push plate (17) to automatically push the stacked packaging boxes from the inside of the sleeve (7) to the top of the pre-placed tray, and complete the stacking of multiple packaging boxes. At this time, the other sleeve (7) rotates to the position close to the mounting frame (3) to continue the stacking process for subsequent packaging boxes. Step 3: During the process of conveying the packaging box to the right at the top of the conveyor belt (4), multiple second industrial cameras (29) are controlled to automatically identify and detect the appearance of the packaging box. If a packaging box has a defect, the third slider (26) is controlled to drive the second rotating plate (13) to move downward together until the two clamps (27) abut against the top of the conveyor belt (4). Then, the two clamps (27) are controlled to clamp and fix the packaging box. As the third slider (26) drives the second rotating plate (13) to move upward together to the specified height, the second rotating plate (13) is controlled to flip over, and one of the clamps (27) is controlled to rotate downward to a horizontal state. The other fourth slider (30) is controlled to drive the other clamp (27) to push the packaging box from the top of the second rotating plate (13) downward to be discharged. The packaging box with defects is automatically rejected. Step 4: Since the length of the packaging box is less than the maximum adjustment distance of the two clamps (27), the second industrial camera (29) finds that the packaging box at the top of the conveyor belt (4) is skewed. It controls the third slider (26) to drive the second rotating plate (13) to move downward, so that the two clamps (27) move to both sides of the skewed packaging box. With the help of the two clamps (27) moving towards each other, the packaging box with positional deviation is corrected. Step 5: After the multiple packaging boxes are stacked to a certain height, control the first sliding block (39) to drive one side of the outer wall of the support plate (14) to abut against one side of the outer wall of the multiple packaging boxes stacked inside the sleeve plate (7), so that the support plate (14) provides auxiliary support for the multiple packaging boxes stacked inside the sleeve plate (7), ensuring that the multiple packaging boxes are stacked neatly and orderly inside the sleeve plate (7).

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