Paperboard waste cleaning and stacking linkage production line

Abstract

The invention relates to the technical field of corrugated paper production equipment, in particular to a paperboard waste cleaning and stacking linkage production line. Comprising an oscillation waste removing mechanism used for conducting oscillation waste removing on paperboards, a vacuum adsorption conveying mechanism used for conducting secondary waste removing on the paperboards, an upper air suction counting mechanism used for counting the paperboards, and a differential conveying mechanism used for increasing the conveying speed of the paperboards with the preset number. The stacking mechanism is used for stacking and discharging a preset number of paperboards; the swing waste cleaning mechanism, the vacuum adsorption conveying mechanism, the upper air suction counting mechanism, the differential conveying mechanism and the stacking mechanism are sequentially arranged in the paperboard conveying direction and are seamlessly connected through guide transition plates, and a continuous paperboard processing assembly line is formed. Therefore, paperboards can stably and efficiently flow among all the mechanisms, and the whole process of waste clearing, counting, differential separation and stacking can be completed without manual intervention.

Description

Technical Field

[0001] This invention relates to the field of corrugated paper production equipment technology, and in particular to a paperboard waste removal and palletizing integrated production line. Background Technology

[0002] Currently, during the cardboard box production process, after the cardboard undergoes die-cutting, a large amount of waste and scrap remains on its surface. If this waste and scrap is not cleaned up in time, it will not only affect the quality of subsequent processing steps but may also damage production equipment. Traditional cardboard waste removal methods mostly rely on manual cleaning, which is not only labor-intensive and inefficient but also has inconsistent cleaning results, making it difficult to meet the needs of large-scale, high-efficiency production.

[0003] With the development of automation technology, some automated waste removal equipment has begun to be applied to production. However, the existing waste removal equipment is often single-function and can only complete the waste removal operation. The cardboard after waste removal still needs to be transferred, counted and stacked manually or by other equipment. The lack of effective linkage between the various processes in the whole process leads to poor production continuity and difficulty in further improving production efficiency.

[0004] In addition, existing waste removal equipment is not thorough enough in cleaning up some small waste particles during the waste removal process, which can easily leave residues on the cardboard surface and affect product quality. At the same time, during the cardboard conveying and stacking process, the lack of effective positioning and buffering mechanisms can easily lead to uneven cardboard stacking, increasing the difficulty of subsequent packaging and transportation. Summary of the Invention

[0005] In order to address the technical deficiencies mentioned in the background art, the purpose of this invention is to provide a paperboard waste removal and palletizing linkage production line, which aims to realize the fully automated linkage operation of paperboard from waste removal to palletizing, so as to solve the problems of existing waste removal equipment having single function, poor process linkage, incomplete waste removal and uneven palletizing.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A paperboard waste removal and palletizing integrated production line includes: An oscillating waste removal mechanism is used to oscillate and remove waste from cardboard. The mechanism includes a cardboard conveyor belt, a paper-pulling reversing assembly, and an oscillating square tube shaft. A first blowing assembly is horizontally arranged above the cardboard conveyor belt, and a brush assembly and a second blowing assembly are arranged on the paper-pulling reversing assembly. The oscillating square tube shaft is horizontally and symmetrically arranged between the paper-pulling reversing assemblies, and one end of the shaft is connected to an oscillating motor. The oscillating motor is connected to the oscillating square tube shaft via a pulley assembly. A vacuum adsorption conveying mechanism is used for secondary waste removal of cardboard. The vacuum adsorption conveying mechanism is connected to the end of a vibrating waste removal mechanism, and is equipped with a third and a fourth air blowing assembly. The vacuum adsorption conveying mechanism includes a vacuum adsorption box and an adsorption conveyor belt wrapped around the outside of the vacuum adsorption box. The adsorption conveyor belt rotates cyclically along the outer periphery of the vacuum adsorption box, and its surface is evenly provided with several adsorption holes, which are connected to the vacuum adsorption box. The vacuum adsorption box is externally connected to a vacuum assembly via an air duct. The upper suction counting mechanism is used to count cardboard. The upper suction counting mechanism includes a platform carriage wall, a vacuum conveying platform, and an upper suction assembly. The two ends of the vacuum conveying platform are rotatably connected to the platform carriage wall through bearing seats, and one end of the vacuum conveying platform is inclined upward along the cardboard conveying direction. The upper suction assembly is connected between the carriage wall and the vacuum conveying platform and is in communication with the vacuum conveying platform. A differential speed conveying mechanism is used to pull and convey a preset number of cardboards at different speeds. The differential speed conveying mechanism includes a transition conveying platform and an inclined conveying platform. The transition conveying platform is equipped with multiple sets of paper pressing roller assemblies, and the ends of the multiple sets of paper pressing roller assemblies are connected to the transition conveying platform in a driving connection. The inclined conveying platform is connected between the transition conveying platform and the stacking mechanism, and both the inclined conveying platform and the vacuum conveying platform adopt a vacuum adsorption conveying method. A palletizing and stacking mechanism is used to stack and unload a preset quantity of cardboard. The mechanism includes a palletizing frame, a palletizing conveyor platform mounted on the frame, and a paper-pressing oscillating belt assembly mounted on the conveyor platform. A gantry frame is located on the outside of the palletizing frame, and a lifting drive mechanism is connected to the palletizing and stacking mechanism to drive the mechanism to move up and down. A double-pole buffer assembly is located below the conveyor platform to receive and transfer the cardboard. One end of the paper-pressing oscillating belt assembly is inclined downwards along the cardboard conveying direction and contacts the conveyor platform; an oscillating drive mechanism connects the oscillating belt assembly to the palletizing frame. The oscillating waste removal mechanism, vacuum adsorption conveying mechanism, upper suction counting mechanism, differential speed conveying mechanism, and palletizing mechanism are arranged sequentially along the paperboard conveying direction, and the mechanisms are seamlessly connected by guide transition plates to form a continuous paperboard processing production line.

[0007] Preferably, the paper-pulling reversing assembly includes at least two sets of circular belt conveyor rollers, a reversing circular belt sleeved between the circular belt conveyor rollers, and multiple sets of paper-pressing rollers located between the circular belt conveyor rollers. The two sets of circular belt conveyor rollers are arranged in parallel vertically and form a clamping conveying channel through the reversing circular belt. The surface of the circular belt conveyor rollers is provided with a plurality of grooves that are adapted to the reversing circular belt at equal intervals. One end of the two sets of circular belt conveyor rollers is linked together by a synchronous belt drive mechanism. The reversing circular belt is rotatably connected to the circular belt conveyor rollers through the grooves. The paper-pressing rollers are disposed between the reversing circular belts, and the outer surface of the paper-pressing rollers is in contact with the reversing circular belt.

[0008] Preferably, the paper-pulling reversing assembly has multiple sets of belt-pulling mechanisms on its front and rear sides for adjusting the spacing between two adjacent reversing circular belts. The belt-pulling mechanism includes a movable guide rail fixed horizontally on the frame, a belt-pulling robot slidably connected to the movable guide rail, and a screw drive assembly for driving the belt-pulling robot. A movable plate is slidably connected to the movable guide rail via a slider. One side of the movable plate is fixedly connected to the belt-pulling robot and the screw drive assembly respectively. The end of the belt-pulling robot is provided with a belt-pulling groove adapted to the reversing circular belt. The screw drive assembly is fixed to the top of the movable guide rail and is drively connected to the belt-pulling robot.

[0009] Preferably, the first blowing assembly and the fourth blowing assembly are respectively disposed at the front end of the oscillating waste removal mechanism and the rear end of the vacuum adsorption conveying mechanism, and the first blowing assembly and the fourth blowing assembly have the same structure, each including a duct support frame, a blowing box and multiple blowing nozzles. The duct support frame is fixedly connected to the frame and the cardboard conveying mechanism. The blowing box is horizontally disposed above the cardboard conveying belt, and one end of the blowing box is connected to a blower through a duct. Multiple blowing nozzles are equidistantly arranged on the blowing box, with one end of the blowing nozzle facing the cardboard direction and the other end connected to the blowing box.

[0010] Preferably, the second and third blowing components are respectively located at the rear end of the oscillating waste removal mechanism and the vacuum adsorption conveying mechanism, and the second and third blowing components have the same structure, both including a support crossbar, a fan suspension frame and a fixed axial flow fan. The support crossbar has a U-shaped structure and both ends of the support crossbar are fixedly connected to the frame. One end of the fan suspension frame is fixedly connected to the support crossbar, and the other end is movably connected to the axial flow fan.

[0011] Preferably, the paper output end of the palletizing and stacking mechanism is provided with a lateral alignment mechanism for aligning and straightening the two sides of the palletized cardboard. The lateral alignment mechanism includes a transverse moving frame arranged parallel to the cardboard conveying direction, a three-axis moving assembly connected to the transverse moving frame and moving in the X / Y / Z directions, and a lateral baffle fixedly connected to the three-axis moving assembly. The transverse moving frame is slidably connected to the palletizing machine frame, and a rear baffle is provided at the end of the transverse moving frame away from the palletizing mechanism. The three-axis moving assembly is slidably connected to the transverse moving frame, and the three-axis moving assembly is fixedly connected to the lateral baffle.

[0012] Preferably, the paper pressing roller assembly includes a sliding frame and multiple sets of paper pressing rollers evenly arranged on the sliding frame. The sliding frame is driven by gears and racks meshing with the top two sides of the transition conveying platform. A blower pipe is provided on the sliding frame and is placed horizontally above the transition conveying platform. The blower nozzle of the blower pipe faces one side of the transition conveying platform. The multiple sets of paper pressing rollers are fixed on the sliding frame along the paperboard conveying direction. The outer surface of each set of paper pressing rollers is in contact with the surface of the transition conveying platform.

[0013] Preferably, the paper-pressing swing belt assembly consists of a paper-pressing bracket, a paper-pressing roller shaft, and a paper-pressing driven wheel. The bracket plates on both sides of the paper-pressing bracket are hinged and fixed. The paper-pressing roller shaft and the paper-pressing driven wheel are located at both ends of the paper-pressing bracket, and a paper-pressing conveyor belt is sleeved between the paper-pressing roller shaft and the paper-pressing driven wheel. One end of the paper-pressing roller shaft is connected to a paper-pressing drive motor through a pulley and a synchronous belt.

[0014] Preferably, the dual-insertion rod buffer assembly includes an auxiliary support frame, a double-layer temporary storage rod frame, and an insertion rod sliding seat. The auxiliary support frame is fixedly connected to the palletizer frame and is correspondingly arranged between the double-layer temporary storage rod frames. The double-layer temporary storage rod frame is composed of multiple equally spaced parallel insertion rods, and one end of the double-layer temporary storage rod frame is slidably connected to the insertion rod sliding seat. The insertion rod sliding seat is fixed on the palletizer support and extends along the extension direction of the double-layer temporary storage rod frame.

[0015] Preferably, the paper inlet end of the oscillating waste removal mechanism, the vacuum adsorption conveying mechanism, the upper suction point counting mechanism, and the differential speed conveying mechanism are all provided with a paper inlet spring assembly. The paper inlet spring assembly includes a mounting frame, multiple sets of paper pressing springs, and a locking handle. The mounting frame is horizontally positioned above the cardboard. One end of the multiple sets of paper pressing springs is inclined upward to form a cardboard inlet and is fixed to the mounting frame by the locking handle. The other end abuts against the surface of the vacuum conveying platform, the transition conveying platform, and the inclined conveying platform.

[0016] In summary, the beneficial effects of the present invention are as follows: After printing and die-cutting, the cardboard enters the vibrating waste removal mechanism via a cardboard conveyor belt. First, the first blowing assembly performs initial waste removal, while the paper-pulling reversing assembly separates the cardboard from the waste material. The separated cardboard is further cleaned by the brush assembly and the second blowing assembly, and the vibration of the vibrating square tube shaft shakes off stubborn waste debris. Next, the vacuum adsorption conveying mechanism firmly adsorbs and conveys the cardboard, with the third and fourth blowing assemblies performing a second waste removal to ensure thorough cleaning. Then, the upper suction counting mechanism assists in adsorption and accurate counting during the vacuum conveying of the cardboard. The differential speed conveying mechanism, through the transition conveying platform and... The vacuum adsorption and paper-pressing roller assembly of the inclined conveyor platform pulls apart a preset number of cardboards at different speeds, preparing them for neat stacking. Finally, the stacking mechanism uses a paper-pressing swing belt assembly and a double-insertion rod buffer assembly to achieve precise stacking and buffered feeding of the cardboards. In conjunction with the lateral alignment mechanism, the stacked cardboards are aligned on both sides to ensure the neatness of the stacking. Through the coordinated work of each mechanism, a continuous cardboard processing production line is formed, enabling the cardboard to flow smoothly and efficiently between the mechanisms. The entire process of waste removal, counting, differential speed separation, and stacking can be completed without manual intervention, realizing integrated production of waste removal, counting, and stacking, and effectively improving the efficiency and cleanliness of cardboard waste removal. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the paperboard waste removal and palletizing linkage production line of the present invention; Figure 2 This is a top view of the paperboard waste removal and palletizing integrated production line of the present invention; Figure 3 This is a schematic diagram of the oscillating waste removal mechanism in this invention; Figure 4 This is a half-sectional view of the oscillating waste removal mechanism in this invention; Figure 5 This is a schematic diagram of the internal components of the oscillating waste removal mechanism in this invention; Figure 6 This is a schematic diagram of the paper-pulling reversing assembly in this invention; Figure 7 This is a schematic diagram of the pull-belt mechanism in this invention; Figure 8 This is a schematic diagram of the brush assembly in this invention; Figure 9 This is a schematic diagram of the vacuum adsorption conveying mechanism in this invention; Figure 10 This is a half-sectional view of the structure of the vacuum adsorption conveying mechanism in this invention; Figure 11 This is a schematic diagram of the structure of the upper suction point counting mechanism in the present invention from the front side. Figure 12 This is a schematic diagram of the structure of the upper suction point counting mechanism in the rear direction of the present invention; Figure 13 This is a half-sectional view of the upper suction point counting mechanism in this invention; Figure 14 This is a schematic diagram of the transition conveying platform in this invention; Figure 15 This is a half-sectional view of the transition conveying platform in this invention; Figure 16 This is a schematic diagram of the inclined conveyor platform in this invention; Figure 17 This is a half-sectional view of the inclined conveyor platform in this invention; Figure 18 This is a schematic diagram of the palletizing mechanism in this invention; Figure 19 This is a half-sectional view of the palletizing mechanism in this invention; Figure 20 This is a schematic diagram of the internal components of the palletizing mechanism of the present invention.

[0018] Explanation of the reference numerals in the figure: 1. Vibrating waste removal mechanism; 11. Paperboard conveyor belt; 12. Paper pulling and reversing assembly; 121. Circular belt conveyor roller group; 122. Reversing circular belt; 123. Paper pressing belt roller group; 13. Vibrating square tube shaft; 131. Vibrating motor; 132. Pulley assembly; 14. Belt pulling mechanism; 141. Moving guide rail seat; 142. Belt pulling robot; 1421. Lever; 1422. Sliding sleeve; 1423. Belt pulling cylinder; 143. Screw drive assembly; 1431. Servo motor; 1432. Ball screw; 1433. Nut seat; 144. Moving plate; 15. First air blowing assembly; 151. Air duct support frame; 152. Air blowing box; 153. Air blowing nozzle; 16. Second air blowing assembly; 161. Support crossbar; 162. Fan suspension frame; 163. Axial flow fan; 17. Brush assembly; 18. Shredded paper waste conveyor belt; 2. Vacuum adsorption conveying mechanism; 21. Vacuum adsorption box; 22. Adsorption conveyor belt; 221. Adsorption hole; 23. Vacuum assembly; 24. Third blowing assembly; 25. Fourth blowing assembly; 3. Upper suction point counting mechanism; 31. Platform car wall; 32. Vacuum conveying platform; 33. Upper suction assembly; 331. Suction fan; 332. Air duct; 333. Extraction duct 4. Differential conveyor mechanism; 41. Transition conveyor platform; 42. Inclined conveyor platform; 43. Paper pressing roller assembly; 431. Sliding frame; 432. Paper pressing roller; 433. Air blowing pipe; 5. Palletizing and stacking mechanism; 51. Palletizing frame; 52. Palletizing conveyor platform; 53. Paper pressing swing belt assembly; 531. Paper pressing bracket; 532. Paper pressing roller shaft; 533. Paper pressing driven wheel; 534. Paper pressing conveyor belt; 535. Paper pressing drive motor; 54. Double insertion rod buffer assembly; 541. Auxiliary support frame; 542. Double-layer temporary insertion rod frame; 543. Insertion rod sliding seat; 55. Swing drive mechanism; 551. Crossbeam frame; 552. Hook plate; 553. Swing cylinder; 6. Gantry frame; 7. Lifting drive mechanism; 71. Hydraulic cylinder; 72. Lifting rack; 73. Synchronous shaft transmission assembly; 731. Synchronous shaft; 732. Transmission gear; 8. Lateral alignment mechanism; 81. Lateral moving frame; 82. Three-axis moving assembly; 83. Lateral baffle; 84. Rear baffle; 9. Paper feed spring assembly; 91. Mounting bracket; 92. Paper pressing spring; 93. Locking handle. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0020] Those skilled in the art should understand that, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting this invention.

[0021] In the description of this invention, the use of terms such as "a number" means one or more, with "more than" meaning two or more. Terms like "greater than," "less than," and "exceeding" are understood to exclude the stated number, while terms like "above," "below," and "within" are understood to include the stated number. The use of terms like "first," "second," and "third" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, the number of indicated technical features, or the sequential relationship between indicated technical features.

[0022] The following is in conjunction with the appendix Figure 1-20 The present invention will provide a more detailed description of an embodiment of a paperboard waste removal and palletizing integrated production line.

[0023] A paperboard waste removal and palletizing integrated production line, such as Figure 1 , 2 As shown, the system includes a vibration cleaning mechanism 1 for vibrating and cleaning paperboard, a vacuum adsorption conveying mechanism 2 for secondary cleaning of paperboard, an upper suction counting mechanism 3 for counting paperboard, a differential conveying mechanism 4 for adjusting the conveying speed of a preset number of paperboards, and a stacking mechanism 5 for stacking and unloading a preset number of paperboards. The vibration cleaning mechanism 1, vacuum adsorption conveying mechanism 2, upper suction counting mechanism 3, differential conveying mechanism 4, and stacking mechanism 5 are arranged sequentially along the paperboard conveying direction, and the mechanisms are seamlessly connected by guide transition plates to form a continuous paperboard processing production line.

[0024] Specifically, after the cardboard completes printing, die-cutting and other processes, it is first conveyed to the oscillating waste removal mechanism 1 by the cardboard conveyor belt 11, and the paper pulling reversing component 12 guides the cardboard to the oscillating square tube shaft 13. The oscillating square tube shaft 13 is driven by the oscillating motor 131 to vibrate at high frequency, and the brush component 17 and the second blowing component 16 work together to deeply clean the residual waste on the surface and edges of the cardboard. Then the cardboard is conveyed to the vacuum adsorption conveying mechanism 2.

[0025] Then, after entering the vacuum adsorption conveying mechanism 2, the cardboard is tightly adhered to the surface of the adsorption conveyor belt 22 under the vacuum adsorption effect of the adsorption holes 221. During the process of being steadily conveyed by the adsorption conveyor belt 22, the third blowing component 24 and the fourth blowing component 25 blow the cardboard a second time from different angles to remove waste and ensure that the waste is completely removed. Then, the cardboard that has completed the second waste removal enters the upper suction counting mechanism 3. Under the conveying of the vacuum conveying platform 32 and the auxiliary adsorption of the upper suction component 33, stable conveying is achieved and the counting operation is completed.

[0026] Subsequently, the counted cardboard is conveyed to the differential conveyor mechanism 4. The paper pressure roller assembly 43 on the transition conveyor platform 41 rolls and guides the cardboard, so that the cardboard is sorted and enters the ramp conveyor platform 42. Through the speed difference with the vacuum conveyor platform 32 in the upper suction counting mechanism 3, the preset number of cardboards are separated by a certain distance.

[0027] Finally, the cardboard after differential speed processing enters the stacking mechanism 5. Under the action of the swing drive mechanism 55, the inclined end of the paper pressure swing belt assembly 53 holds the cardboard and guides it to the stacking position with the transport of the stacking conveyor platform 52. When the cardboard is stacked to the preset quantity, the double insert rod buffer assembly 54 rises to receive the cardboard, and then transfers the stacked cardboard to the unloading area, completing the entire cardboard waste removal and stacking linkage operation process.

[0028] It should be noted that the drive components of the oscillating waste removal mechanism 1, the vacuum adsorption conveying mechanism 2, the upper suction counting mechanism 3, the differential speed conveying mechanism 4, and the palletizing mechanism 5 are all electrically connected to a central controller (such as a PLC). The upper suction counting mechanism 3 sends a counting signal to the central controller. When the preset quantity is reached, the central controller controls the differential speed conveying mechanism 4 to adjust the conveying speed to increase the spacing between the cardboard pieces and prepare for palletizing.

[0029] In this embodiment, as Figure 1 , 3 As shown in Figure 6, the oscillating waste removal mechanism 1 includes a cardboard conveyor belt 11, a paper pulling reversing assembly 12, and an oscillating square tube shaft 13. A first blowing assembly 15 is horizontally arranged above the cardboard conveyor belt 11, and a brush assembly 17 and a second blowing assembly 16 are arranged on the paper pulling reversing assembly 12. The oscillating square tube shaft 13 is horizontally and symmetrically arranged between the paper pulling reversing assemblies 12, and one end of the oscillating square tube shaft 13 is connected to an oscillating motor 131. The oscillating motor 131 is connected to the oscillating square tube shaft 13 via a pulley assembly 132.

[0030] Specifically, the paper-pulling reversing assembly 12 includes at least two sets of circular conveyor rollers 121, a reversing circular belt 122 sleeved between the circular conveyor rollers 121, and multiple sets of pressure rollers 123 located between the circular conveyor rollers 121. The two sets of circular conveyor rollers 121 are arranged in parallel vertically and form a clamping conveying channel through the reversing circular belt 122. The surface of the circular conveyor rollers 121 is provided with a number of grooves that are adapted to the reversing circular belt 122 at equal intervals. One end of the two sets of circular conveyor rollers 121 is linked together by a synchronous belt drive mechanism. The reversing circular belt 122 is rotatably connected to the circular conveyor rollers 121 through the grooves. The pressure rollers 123 are disposed between the reversing circular belts 122, and the outer surface of the pressure rollers 123 is in contact with the reversing circular belt 122.

[0031] The brush assembly 17 is positioned above or to the side of the paper-pulling and reversing mechanism's clamping and conveying channel, used for physically cleaning the surface of the cardboard after vibration and waste removal. For example... Figure 4 , 5As shown in Figure 8, the brush assembly 17 includes a brush holder 171, a brush fixing strip 172, and an oscillating brush 173. The brush holder 171 is an L-shaped plate structure, respectively disposed at both ends of the brush fixing strip 172. The brush holder 171 is fixedly connected to the two side walls of the frame 1 by bolts, and its height can be adjusted through the oblong hole. The brush fixing strip 172 is elongated, with a fixing groove extending along its length at its bottom. The handle of the oscillating brush 173 is embedded and fixed in the fixing groove. The length and hardness of the oscillating brush 173 are selected according to the material of the cardboard and the surface printing condition to ensure that it can effectively clean up waste without damaging the surface of the printed matter. The bottom bristles of the oscillating brush 173 are in contact with the surface of the cardboard, and the contact pressure can be controlled by adjusting the height of the brush holder 171.

[0032] In this embodiment, as Figure 3-5 As shown, multiple sets of belt-pulling mechanisms 14 are provided on the front and rear sides of the paper-pulling reversing assembly 12 to adjust the spacing between two adjacent reversing circular belts 122. The belt-pulling mechanism 14 includes a movable guide rail seat 141 fixed horizontally on the frame, a belt-pulling robot 142 slidably connected to the movable guide rail seat 141, and a screw drive assembly 143 for driving the belt-pulling robot 142 to move. A movable plate 144 is slidably connected to the movable guide rail seat 141 via a slider. One side of the movable plate 144 is fixedly connected to the belt-pulling robot 142 and the screw drive mechanism, respectively. The end of the belt-pulling robot 142 is provided with a belt-pulling groove adapted to the reversing circular belt 122. The screw drive assembly 143 is fixed on the top of the movable guide rail seat 141 and is drively connected to the belt-pulling robot 142.

[0033] Specifically, the belt-pulling robot 142 includes a lever 1421, a sliding sleeve 1422, and a belt-pulling cylinder 1423. The sliding sleeve 1422 and the belt-pulling cylinder 1423 are fixedly mounted on the moving plate 144. The lever 1421 is movably inserted into the sliding sleeve 1422 and can move axially along the sliding sleeve 1422. One end of the lever 1421 near the reversing belt 122 has a belt-pulling groove that matches the reversing belt 122. The width of the belt-pulling groove is slightly larger than the diameter of the reversing belt 122. The other end is connected to the output end of the belt-pulling cylinder 1423 via a spherical bearing. The lead screw drive assembly 143 includes a servo motor 1431, a ball screw 1432, and a nut seat 1433. The ball screw 1432 is horizontally mounted on the top side of the moving guide rail seat 141 via a bearing seat, and one end of it is connected to the output shaft of the servo motor 1431 via a coupling. The nut seat 1433 is sleeved on the ball screw 1432 and fixed to the moving plate 144.

[0034] The working process of the paper pulling reversing component 12 is as follows: When the position of a reversing belt 122 needs to be adjusted, the belt-pulling cylinder 1423 first extends, driving the lever 1421 to move towards the reversing belt 122, causing the belt-pulling groove to engage the reversing belt 122. Then, the servo motor 1431 starts, driving the ball screw 1432 to rotate, and causing the nut seat 1433 and the moving plate 144 to move along the moving guide rail seat 141. The lever 1421 moves accordingly, thereby causing the reversing belt 122 to slide laterally within the groove of the belt conveyor roller group 121, changing its position on the belt conveyor roller group 121. By controlling the servo motor actions of different belt-pulling mechanisms 14, the spacing between adjacent reversing belts 122 can be made different, or the movement trajectory of some reversing belts 122 can be made to deviate from the angular distance of other reversing belts 122. When the cardboard is conveyed between the upper and lower reversing circular belts 122, the position of the reversing circular belts 122 on the circular belt conveyor roller group 121 changes, resulting in slight differences in the direction and magnitude of the conveying force applied to the cardboard by each reversing circular belt 122. This exerts a combined tensile force on the cardboard in both the transverse and longitudinal directions. This combined tensile force can effectively act on stubborn adhesive points on the cardboard, forcibly tearing them apart and achieving the initial separation of printed materials from edge trimmings.

[0035] In this embodiment, as Figure 2-5 As shown, the first blowing assembly 15 and the fourth blowing assembly 25 are respectively disposed at the front end of the oscillating waste removal mechanism 1 and the rear end of the vacuum adsorption conveying mechanism 2. The first blowing assembly 15 and the fourth blowing assembly 25 have the same structure, both including a duct support frame 151, a blowing box 152 and multiple blowing nozzles 153. The duct support frame 151 is fixedly connected to the frame of the oscillating waste removal mechanism 1. The blowing box 152 is horizontally disposed above the cardboard conveyor belt 11, and one end of the blowing box 152 is connected to a blower through a duct. Multiple blowing nozzles 153 are equidistantly arranged on the blowing box 152, and one end of the blowing nozzle is oriented towards the cardboard direction, while the other end is connected to the blowing box 152.

[0036] Specifically, the blower box 152 has a rectangular hollow structure and is horizontally positioned directly above the cardboard conveyor belt 11, with its length exceeding the width of the cardboard. One end of the blower box 152 is connected to a high-pressure blower via a flexible duct, while the other end is closed. Multiple blower nozzles 153 are equidistantly arranged and fixedly installed at the bottom of the blower box 152. One end of each nozzle faces the cardboard conveyor belt 11, and the distance between its outlet and the cardboard surface can be adjusted according to actual waste removal needs. The other end connects to the internal cavity of the blower box 152. The nozzles 153 can be flat or duckbill-shaped to create a flat airflow, improving the removal of waste. When the cardboard is conveyed on the belt below the first blower assembly 15, the airflow generated by the high-pressure blower enters the blower box 152 through the duct and is then evenly blown onto the cardboard surface and edges through the nozzles 153, blowing off attached dust, fine paper scraps, and some incompletely adhered edge material.

[0037] It is worth noting that a shredded paper waste discharge conveyor belt 18 for collecting and discharging waste is also provided below the oscillating waste removal mechanism 1. The shredded paper waste discharge conveyor belt 18 can discharge the waste generated during the oscillating waste removal process in a unified manner.

[0038] In this embodiment, as Figure 1 , 9 As shown in Figure 10, the vacuum adsorption conveying mechanism 2 is connected to the end of the oscillating waste removal mechanism 1, and the vacuum adsorption conveying mechanism 2 is provided with a third blowing assembly 24 and a fourth blowing assembly 25; the vacuum adsorption conveying mechanism 2 includes a vacuum adsorption box 21 and an adsorption conveyor belt 22 wrapped around the outside of the vacuum adsorption box 21. The adsorption conveyor belt 22 rotates cyclically along the outer periphery of the vacuum adsorption box 21, and a plurality of adsorption holes 221 are evenly opened on the surface of the adsorption conveyor belt 22. The adsorption holes 221 are connected to the vacuum adsorption box 21; the vacuum adsorption box 21 is connected to the vacuum assembly 23 through the air duct.

[0039] Specifically, the vacuum adsorption box 21 is a hollow cuboid structure with flat top and bottom surfaces and curved transition surfaces at both ends to accommodate the running trajectory of the adsorption conveyor belt 22. The adsorption conveyor belt 22 is a high-strength, low-permeability annular belt with a number of uniformly distributed adsorption holes 221 on its surface. The distribution density of the adsorption holes 221 is designed according to the weight and size of the cardboard. The adsorption conveyor belt 22 is fitted around the outer periphery of the vacuum adsorption box 21, and its inner side is in contact with the top, bottom, and curved surfaces at both ends of the vacuum adsorption box 21. The transmission assembly includes a drive roller, a driven roller, and a drive motor. The drive roller and the driven roller are respectively located at the front and rear ends of the vacuum adsorption box 21. The adsorption conveyor belt 22 is wound between the drive roller and the driven roller. The drive motor drives the drive roller to rotate, thereby causing the adsorption conveyor belt 22 to circulate around the outer periphery of the vacuum adsorption box 21.

[0040] In this system, a vacuum assembly 23 (such as a vacuum pump or vacuum generator) is connected to one or both ends of the vacuum adsorption box 21 via an external air duct. When the vacuum assembly 23 is working, it creates a negative pressure inside the vacuum adsorption box 21. When the adsorption holes 221 on the adsorption conveyor belt 22 move to the top area of ​​the vacuum adsorption box 21 with the conveyor belt, the cardboard is firmly adsorbed onto the surface of the adsorption conveyor belt 22 under the action of negative pressure because this area is connected to the inside of the vacuum adsorption box 21, achieving flat conveying and effectively avoiding wrinkles or displacement of the cardboard due to its own weight or external wind force. This provides a stable working platform for the precise waste removal of the third blowing assembly 24 and the fourth blowing assembly 25.

[0041] In this embodiment, as Figure 2 , 5 As shown, the third blowing assembly 24 is located above the front end of the vacuum adsorption conveying mechanism 2, near the outlet of the paper pulling reversing assembly 12. Its structure is the same as that of the second blowing assembly 16, both including a support crossbar 161, a fan suspension bracket 162, and an axial flow fan 163. The support crossbar 161 has a U-shaped structure, with both ends fixedly connected to the frame of the vacuum adsorption conveying mechanism 2. One end of the fan suspension bracket 162 is fixed to the support crossbar 161, and the other end is movably connected to the axial flow fan 163, allowing adjustment of the blowing angle and height of the axial flow fan 163.

[0042] Specifically, the function of the third blowing assembly 24 is to blow air again on the cardboard that has just entered the vacuum adsorption conveying mechanism 2 to remove any waste that may remain at the end of the paper pulling and reversing assembly 12, especially the small paper scraps newly generated at the edge of the cardboard after being pulled and separated by the paper pulling and reversing mechanism.

[0043] In this embodiment, as Figure 11-13 As shown, the upper suction counting mechanism 3 includes a platform wall 31, a vacuum conveying platform 32, and an upper suction component 33. The two ends of the vacuum conveying platform 32 are rotatably connected to the platform wall 31 through bearing seats, and one end of the vacuum conveying platform 32 is inclined upward along the paperboard conveying direction. The upper suction component 33 is connected between the platform wall and the vacuum conveying platform 32 and is in communication with the vacuum conveying platform 32.

[0044] Specifically, the platform wall 31 provides stable support for the entire mechanism, and the vacuum conveying platform 32 is rotatably connected via bearing seats. Its upward-sloping design at one end helps the cardboard to maintain a good posture during the initial conveying process. The upper suction assembly 33 includes a suction fan 331, an air duct 332, and a suction pipe 333. The suction fan 331 is fixedly connected to the top of the platform wall 31 and communicates with the air duct 332. The air duct 332 is horizontally fixed to the platform wall 31, and the suction pipes 333 are equidistantly arranged on the air duct 332, with one end of the suction pipe 333 communicating with the air duct 332 and the other end communicating with the vacuum conveying platform 32. The negative pressure generated by the suction fan 331 is evenly distributed to each suction pipe 333 through the air duct 332, and then the suction pipes 333 introduce the negative pressure into the internal cavity of the vacuum conveying platform 32. This equidistant arrangement design ensures that the suction force of the vacuum conveying platform 32 is evenly distributed, ensuring that cardboard at different positions can be stably adsorbed.

[0045] As the cardboard passes through the vacuum conveyor platform 32, the suction force generated by the upper suction assembly 33 not only ensures that the cardboard is flatly adhered to the conveyor surface at its bottom, preventing it from slipping or shifting during inclined conveying, but also, multiple photoelectric detectors and airflow sensors are installed on the top of the vacuum conveyor platform 32 to precisely control and monitor the suction airflow. For example, when the cardboard blocks the photoelectric sensor, it is counted, and the signal from the airflow sensor can be used for verification to avoid misjudging a single thick cardboard as multiple sheets. This allows for accurate counting of each passing cardboard, achieving a highly efficient and precise counting function.

[0046] In this embodiment, as Figure 2 , 14 As shown in Figure 15, the differential conveying mechanism 4 includes a transition conveying platform 41 and an inclined conveying platform 42. The transition conveying platform 41 is provided with multiple sets of paper pressing roller assemblies 43, and the two ends of the multiple sets of paper pressing roller assemblies 43 are connected to the transition conveying platform 41 for transmission. The inclined conveying platform 42 is connected between the transition conveying platform 41 and the stacking mechanism 5. Both the transition conveying platform 41 and the inclined conveying platform 42 are similar in structure to the vacuum conveying platform 32 of the upper suction counting mechanism 3, and also include a conveyor belt with suction holes and a vacuum cavity connected thereto, so as to achieve stable suction and conveying of the cardboard.

[0047] Specifically, the paper pressing roller assembly 43 includes a sliding frame 431 and multiple sets of paper pressing rollers 432 evenly arranged on the sliding frame 431. The sliding frame 431 is driven by gears and racks meshing on both sides of the top of the transition conveying platform 41. A blowing pipe 433 is provided on the sliding frame 431 and is horizontally placed above the transition conveying platform 41. The blowing port of the blowing pipe 433 faces one side of the transition conveying platform 41. Multiple sets of paper pressing rollers 432 are fixed on the sliding frame 431 along the paperboard conveying direction. The outer side of each set of paper pressing rollers 432 is in contact with the surface of the transition conveying platform 41.

[0048] The sliding frame 431 is driven by a servo motor and moves along the guide rails on both sides of the transition conveyor platform 41 to a position matching the width of the cardboard (for example, for a 1200mm wide cardboard, the sliding frame 431 is positioned 150mm from the edge). The pressure roller 432 has its axis at a 3° angle to the surface of the transition conveyor platform 41, applying a contact pressure of 0.3MPa to the cardboard. During the cardboard conveying process, the pressure roller 432 applies a certain pressure to the cardboard through its own rotation, preventing the cardboard from bouncing or wrinkling during high-speed conveying. The air blower 433 blows clean air onto the surface of the cardboard when it enters the transition conveyor platform 41, effectively removing dust, paper scraps, and other impurities from the cardboard surface; preventing impurities from affecting the subsequent counting accuracy and stacking quality, and also preventing impurities from accumulating on the conveyor platform and affecting the normal operation of the equipment.

[0049] In this embodiment, as Figure 18-20 As shown, the palletizing and stacking mechanism 5 includes a palletizing frame 51, a palletizing conveyor platform 52 mounted on the palletizing frame 51, and a paper-pressing swing belt assembly 53 disposed on the palletizing conveyor platform 52; a double-pole buffer assembly 54 is provided below the palletizing conveyor platform 52 for receiving the cardboard and transferring the unloading; one end of the paper-pressing swing belt assembly 53 is inclined downward along the cardboard conveying direction and contacts the palletizing conveyor platform 52, and a swing drive mechanism 55 is connected between the paper-pressing swing belt assembly 53 and the palletizing frame 51.

[0050] Specifically, the paper-pressing oscillating belt assembly 53 consists of a paper-pressing bracket 531, a paper-pressing roller shaft 532, and a paper-pressing driven wheel 533. The bracket plates on both sides of the paper-pressing bracket 531 are hinged and fixed, allowing the entire assembly to oscillate around the hinge point. The paper-pressing roller shaft 532 and the paper-pressing driven wheel 533 are located at opposite ends of the paper-pressing bracket 531, and a paper-pressing conveyor belt 534 is fitted between the paper-pressing roller shaft 532 and the paper-pressing driven wheel 533. One end of the paper-pressing roller shaft 532 is connected to a paper-pressing drive motor 535 via a pulley and a synchronous belt. The paper-pressing drive motor 535 drives the paper-pressing roller shaft 532 to rotate via the pulley and the synchronous belt, thereby driving the paper-pressing conveyor belt 534 to rotate.

[0051] When the cardboard enters the palletizing mechanism, it is first received by the palletizing conveyor platform 52. One end of the pressure-grip swing belt assembly 53 is inclined downwards and contacts the palletizing conveyor platform 52. In the initial state, this inclined end is either in contact with the surface of the palletizing conveyor platform 52 or maintains a slight gap, allowing the cardboard to pass smoothly. When temporary storage of the cardboard is required, the swing drive mechanism 55 drives the inclined end of the pressure-grip swing belt assembly 53 to swing downwards, and the pressure-grip conveyor belt 534 contacts the surface of the palletizing conveyor platform 52. Under the action of the conveying force, the cardboard is temporarily clamped on the palletizing conveyor platform 52 by the pressure-grip conveyor belt 534. When the cardboard needs to be released for stacking, the swing drive mechanism 55 drives the inclined end of the pressure-grip swing belt assembly 53 to swing upwards, releasing the clamping of the cardboard. The cardboard falls onto the double-pole buffer assembly 54 under the action of gravity. The operating speed of the pressure-grip conveyor belt 534 can be matched with the speed of the palletizing conveyor platform 52 to ensure a smooth transition of the cardboard during temporary storage and release, avoiding paper jams or damage to the cardboard.

[0052] In this embodiment, as Figure 18-20 As shown, the swing drive mechanism 55 includes a crossbeam frame 551, a hook plate 552, and a swing cylinder 553. The crossbeam frame 551 is horizontally arranged at one inclined end of the paper pressing swing belt assembly 53, and both ends of the crossbeam frame 551 are fixedly connected to the palletizer frame 51. One end of the hook plate 552 is vertically fixed to the crossbeam frame 551, and the other end is fixedly connected to the paper pressing swing belt assembly 53. The swing cylinder 553 is fixed to the crossbeam frame 551 through a hinge seat, and the output end of the swing cylinder 553 is connected to the paper pressing swing belt assembly 53 for transmission.

[0053] Specifically, the crossbeam frame 551 provides a stable mounting platform for the entire swing drive mechanism 55, while the hook plate 552 connects the paper-pressing swing belt assembly 53 to the crossbeam frame 551, ensuring structural stability during the swing process. The swing cylinder 553 serves as the power source; its extension and retraction at the output end drives the paper-pressing swing belt assembly 53 to swing up and down around the hinge point via a transmission structure. By precisely controlling the stroke and speed of the swing cylinder, the swing angle and frequency of the paper-pressing swing belt assembly 53 can be accurately adjusted, ensuring it matches the conveying rhythm and stacking requirements of the cardboard, thus achieving reliable temporary storage and release of the cardboard.

[0054] In this embodiment, as Figure 19 , 20As shown, due to the height difference between the palletizing conveyor platform 52 and the unloading area, cardboard is prone to overturning, shifting, or unevenness during unloading. Therefore, a double-pole buffer assembly 54 is provided below the palletizing conveyor platform 52. The double-pole buffer assembly 54 includes an auxiliary support frame 541, a double-layer temporary storage pole frame 542, and a pole sliding seat 543. The auxiliary support frame 541 is fixedly connected to the palletizing machine frame 51 and is correspondingly arranged between the double-layer temporary storage pole frames 542. The double-layer temporary storage pole frame 542 is composed of multiple equally spaced poles, and one end of the double-layer temporary storage pole frame 542 is slidably connected to the pole sliding seat 543. The pole sliding seat 543 is fixed on the palletizing support and extends along the extension direction of the double-layer temporary storage pole frame 542.

[0055] Specifically, when cardboard falls from the palletizing conveyor platform 52, the double-layer temporary storage insert rack 542 extends outward along the slide rail via the insert sliding seat 543. The upper insert receives the falling cardboard, while the auxiliary support frame 541 reinforces the upper insert, preventing it from bending or deforming due to excessive force. Once the preset number of falling cardboards is reached, the upper temporary storage insert rack retracts, allowing the stacked cardboard to fall onto the lower temporary storage insert rack. The lower temporary storage insert rack then retracts to transfer the cardboard to the unloading area. This double-layer design allows one set of insert racks to transfer cardboard while the other set continues to receive new cardboard, ensuring continuity in cardboard receiving and transfer and improving palletizing efficiency. The equidistant arrangement of the inserts ensures uniform force on the cardboard during the receiving process, preventing bending or damage.

[0056] To further improve the stacking efficiency of cardboard, in this embodiment, such as Figure 18-20 As shown, the paper output end of the palletizing mechanism is equipped with a lateral alignment mechanism 8, which is used to align and arrange the two sides of the palletized cardboard. The lateral alignment mechanism 8 includes a transverse moving frame 81 arranged parallel to the cardboard conveying direction, a three-axis moving assembly 82 connected to the transverse moving frame 81 and moving in the X / Y / Z directions, and a lateral baffle 83 fixedly connected to the three-axis moving assembly 82. The transverse moving frame 81 is slidably connected to the palletizing frame 51, and a rear baffle 84 is provided at the end of the transverse moving frame 81 away from the palletizing mechanism. The three-axis moving assembly 82 is slidably connected to the transverse moving frame 81, and the three-axis moving assembly 82 is fixedly connected to the lateral baffle 83.

[0057] Specifically, when the lateral alignment mechanism 8 is working, the transverse moving frame 81 can slide along the length of the palletizer frame 51 to accommodate cardboard of different lengths. The three-axis moving assembly 82 can drive the side baffle 83 to move flexibly in the X-axis (cardboard width direction), Y-axis (cardboard conveying direction), and Z-axis (vertical direction). When the cardboard begins to stack, the three-axis moving assembly 82 drives the side baffle 83 to move to the set position, while the rear baffle 84 limits the rear end of the cardboard. As the cardboard continues to stack, the side baffle 83 gradually pushes and aligns the two sides of the cardboard in the X-direction to ensure that the sides of the stack are neat; the fine adjustment in the Y-direction ensures the precise alignment of the baffle with the edge of the cardboard; the movement in the Z-axis direction can adjust the working position of the side baffle 83 according to the stacking height of the cardboard to avoid interference with the stacked cardboard, achieving precise alignment of cardboard at different stacking heights and effectively ensuring the neatness of the cardboard after stacking.

[0058] In this process, once a stack of cardboard is stacked and aligned, the paper-pressing swing belt assembly 53 is reset under the action of the swing drive mechanism 55, and its inclined end re-contacts the palletizing conveyor platform 52, releasing the next set of cardboard temporarily stored. At the same time, the double-layer temporary storage insert rod frame 542 of the double insert rod buffer assembly 54 slides along the slide rail to the outside of the palletizing frame 51 under the drive of the insert rod sliding seat 543, transferring the stacked cardboard stack to the unloading area or the conveyor line of the next process.

[0059] It should be noted that the three-axis moving component 82 in this embodiment adopts a common screw and slide rail transmission method in the prior art. For example, a ball screw is driven to rotate by a servo motor, which drives the slider to move along the slide rail in the X / Y / Z axis direction. Its specific structure will not be described in detail here.

[0060] In order to place the palletizing mechanism and the differential conveying mechanism 4 at the same height, in this embodiment, as follows: Figure 18-20 As shown, a gantry frame 6 is provided on the outside of the palletizing structure. Inside the gantry frame 6 is a lifting drive mechanism 7 for driving the palletizing mechanism to move up and down. The lifting drive mechanism 7 includes a hydraulic cylinder 71, a lifting rack 72, and a synchronous shaft transmission assembly 73. The hydraulic cylinder 71 is installed inside the gantry frame 6, and the output end of the hydraulic cylinder 71 is connected to the palletizing mechanism through a sprocket assembly. The lifting rack 72 is symmetrically distributed on both sides of the gantry frame 6 and extends axially along the height direction of the gantry frame 6. The synchronous shaft transmission assembly 73 consists of a synchronous rotating shaft and a transmission gear. The synchronous rotating shaft is laterally rotatably connected to the palletizing frame 51 and is located above the paper pressing swing belt assembly 53. The transmission gear is rotatably installed at both ends of the synchronous rotating shaft and meshes with the lifting rack 72.

[0061] Specifically, the output end of the hydraulic cylinder 71 drives the palletizing frame 51 to rise or fall smoothly along the lifting rack 72 of the gantry frame 6 via a sprocket assembly. To ensure the synchronization and stability of the lifting process, the lifting rack 72 is symmetrically distributed on both sides of the gantry frame 6. The synchronous shaft of the synchronous shaft transmission assembly 73 is laterally connected to the palletizing frame 51, and the transmission gears at both ends of the shaft mesh with the lifting rack 72. When the hydraulic cylinder 71 is activated, the transmission gears at both ends of the synchronous shaft roll along the lifting rack 72, ensuring that the lifting speed on both sides of the palletizing frame 51 is consistent, avoiding tilting or jamming. The synchronous shaft ensures that the rotational speed of the transmission gears at both ends is consistent, further improving the smoothness and synchronization accuracy of the lifting motion. This drive method can provide a large load capacity to meet the needs of palletizing at different heights, and it is stable and reliable in operation with low maintenance costs.

[0062] In this embodiment, as Figure 2 , 12 As shown in -17, the paper feeding end of the oscillating waste removal mechanism 1, the vacuum adsorption conveying mechanism 2, the upper suction point counting mechanism 3, and the differential speed conveying mechanism 4 is provided with a paper feeding spring assembly 9. The paper feeding spring assembly 9 includes a mounting frame 91, multiple sets of paper pressing springs 92, and a locking handle 93. The mounting frame 91 is horizontally set above the cardboard. One end of the multiple sets of paper pressing springs 92 is inclined upward to form a cardboard inlet and is fixed to the mounting frame 91 by the locking handle 93. The other end abuts against the surface of the vacuum conveying platform 32, the transition conveying platform 41, and the inclined conveying platform 42.

[0063] Specifically, the paper-pressing spring 92 is made of elastic metal, and its end that contacts the cardboard has a rounded transition, which not only provides stable downward pressure on the cardboard and prevents it from tilting or shifting during high-speed conveying, but also avoids scratching damage to the cardboard surface. The locking handle 93 is connected to the mounting frame 91 via a threaded structure. When it is necessary to adjust the tilt angle or height of the paper-pressing spring 92, simply loosen the locking handle 93 to push the paper-pressing spring 92 to rotate around the mounting point. After adjusting to the appropriate position, tighten the locking handle 93 to fix it. The operation is convenient and flexible, and can adapt to the conveying needs of cardboard of different thicknesses and specifications. The two ends of the mounting frame 91 are fixedly connected to the frame of each mechanism by bolts to ensure that the paper feed spring assembly 9 remains stable and does not wobble during operation.

[0064] In summary, through the detailed description of the above specific embodiments, this invention clearly demonstrates the core mechanisms of the paperboard waste removal and palletizing integrated production line. These mechanisms work collaboratively and are closely connected, forming a highly automated, stable, reliable, and widely applicable paperboard waste removal and palletizing production line. This effectively solves the problems of low efficiency and inconsistent palletizing quality in traditional manual waste removal, as well as issues such as easy paperboard conveying deviation, inaccurate counting, and uneven stacking in automated production lines. It significantly improves the production efficiency and product quality of paperboard downstream processing.

[0065] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A paperboard waste removal and palletizing integrated production line, characterized in that, include: An oscillating waste removal mechanism is used to oscillate and remove waste from cardboard. The mechanism includes a cardboard conveyor belt, a paper-pulling reversing assembly, and an oscillating square tube shaft. A first blowing assembly is horizontally arranged above the cardboard conveyor belt, and a brush assembly and a second blowing assembly are arranged on the paper-pulling reversing assembly. The oscillating square tube shaft is horizontally and symmetrically arranged between the paper-pulling reversing assemblies, and one end of the shaft is connected to an oscillating motor. The oscillating motor is connected to the oscillating square tube shaft via a pulley assembly. A vacuum adsorption conveying mechanism is used for secondary waste removal of cardboard. The vacuum adsorption conveying mechanism is connected to the end of a vibrating waste removal mechanism, and is equipped with a third and a fourth air blowing assembly. The vacuum adsorption conveying mechanism includes a vacuum adsorption box and an adsorption conveyor belt wrapped around the outside of the vacuum adsorption box. The adsorption conveyor belt rotates cyclically along the outer periphery of the vacuum adsorption box, and its surface is evenly provided with several adsorption holes, which are connected to the vacuum adsorption box. The vacuum adsorption box is externally connected to a vacuum assembly via an air duct. The upper suction counting mechanism is used to count cardboard. The upper suction counting mechanism includes a platform wall, a vacuum conveying platform, and an upper suction assembly. The two ends of the vacuum conveying platform are rotatably connected to the platform wall through bearing seats, and one end of the vacuum conveying platform is inclined upward along the cardboard conveying direction. The upper suction assembly is connected between the platform wall and the vacuum conveying platform and is in communication with the vacuum conveying platform. A differential speed conveying mechanism is used to pull and convey a preset number of cardboards at different speeds. The differential speed conveying mechanism includes a transition conveying platform and an inclined conveying platform. The transition conveying platform is equipped with multiple sets of paper pressing roller assemblies, and the ends of the multiple sets of paper pressing roller assemblies are connected to the transition conveying platform in a driving connection. The inclined conveying platform is connected between the transition conveying platform and the stacking mechanism, and both the inclined conveying platform and the vacuum conveying platform adopt a vacuum adsorption conveying method. A palletizing and stacking mechanism is used to stack and unload a preset quantity of cardboard. The mechanism includes a palletizing frame, a palletizing conveyor platform mounted on the frame, and a paper-pressing oscillating belt assembly mounted on the conveyor platform. A gantry frame is located on the outside of the palletizing frame, and a lifting drive mechanism is connected to the palletizing and stacking mechanism to drive the mechanism to move up and down. A double-pole buffer assembly is located below the conveyor platform to receive and transfer the cardboard. One end of the paper-pressing oscillating belt assembly is inclined downwards along the cardboard conveying direction and contacts the conveyor platform; an oscillating drive mechanism connects the oscillating belt assembly to the palletizing frame. The oscillating waste removal mechanism, vacuum adsorption conveying mechanism, upper suction counting mechanism, differential speed conveying mechanism, and palletizing mechanism are arranged sequentially along the paperboard conveying direction, and the mechanisms are seamlessly connected by guide transition plates to form a continuous paperboard processing production line.

2. The paperboard waste removal and palletizing integrated production line according to claim 1, characterized in that, The paper-pulling reversing assembly includes at least two sets of circular belt conveyor rollers, a reversing circular belt sleeved between the circular belt conveyor rollers, and multiple sets of paper-pressing roller sets located between the circular belt conveyor rollers. The two sets of circular belt conveyor rollers are arranged in parallel vertically and form a clamping conveying channel through the reversing circular belt. The surface of the circular belt conveyor rollers is provided with several grooves that are adapted to the reversing circular belt at equal intervals. One end of the two sets of circular belt conveyor rollers is linked together by a synchronous belt drive mechanism. The reversing circular belt is rotatably connected to the circular belt conveyor rollers through the grooves. The paper-pressing roller sets are arranged between the reversing circular belts, and the outer surface of the paper-pressing roller sets is in contact with the reversing circular belts.

3. The paperboard waste removal and palletizing integrated production line according to claim 2, characterized in that, The paper-pulling reversing assembly has multiple sets of belt-pulling mechanisms on its front and rear sides for adjusting the spacing between two adjacent reversing circular belts. The belt-pulling mechanism includes a movable guide rail fixed horizontally on the frame, a belt-pulling robot slidably connected to the movable guide rail, and a screw drive assembly for driving the belt-pulling robot. A movable plate is slidably connected to the movable guide rail via a slider. One side of the movable plate is fixedly connected to the belt-pulling robot and the screw drive assembly, respectively. The end of the belt-pulling robot is provided with a belt-pulling groove adapted to the reversing circular belt. The screw drive assembly is fixed to the top of the movable guide rail and is drively connected to the belt-pulling robot.

4. The paperboard waste removal and palletizing integrated production line according to claim 1, characterized in that, The first and fourth blowing components are respectively located at the front end of the oscillating waste removal mechanism and the rear end of the vacuum adsorption conveying mechanism. The first and fourth blowing components have the same structure, each including a duct support frame, a blowing box, and multiple blowing nozzles. The duct support frame is fixedly connected to the frame and the cardboard conveying mechanism. The blowing box is horizontally positioned above the cardboard conveying belt, and one end of the blowing box is connected to a blower via a duct. Multiple blowing nozzles are equidistantly arranged on the blowing box, with one end of the nozzle facing the cardboard direction and the other end connected to the blowing box.

5. The paperboard waste removal and palletizing integrated production line according to claim 1, characterized in that, The second and third blowing components are respectively located at the rear end of the oscillating waste removal mechanism and the vacuum adsorption conveying mechanism. The second and third blowing components have the same structure, including a support crossbar, a fan suspension frame and a fixed axial flow fan. The support crossbar has a U-shaped structure and both ends of the support crossbar are fixedly connected to the frame. One end of the fan suspension frame is fixedly connected to the support crossbar, and the other end is movably connected to the axial flow fan.

6. The paperboard waste removal and palletizing integrated production line according to claim 1, characterized in that, The paper output end of the palletizing and stacking mechanism is equipped with a lateral alignment mechanism for aligning and straightening the two sides of the palletized cardboard. The lateral alignment mechanism includes a transverse moving frame arranged parallel to the cardboard conveying direction, a three-axis moving assembly connected to the transverse moving frame and moving in the X / Y / Z directions, and a lateral baffle fixedly connected to the three-axis moving assembly. The transverse moving frame is slidably connected to the palletizing machine frame, and a rear baffle is provided at the end of the transverse moving frame away from the palletizing mechanism. The three-axis moving assembly is slidably connected to the transverse moving frame, and the three-axis moving assembly is fixedly connected to the lateral baffle.

7. The paperboard waste removal and palletizing integrated production line according to claim 1, characterized in that, The paper pressing roller assembly includes a sliding frame and multiple sets of paper pressing rollers evenly arranged on the sliding frame. The sliding frame is driven by gears and racks meshing with the top two sides of the transition conveying platform. A blower pipe is provided on the sliding frame and is placed horizontally above the transition conveying platform. The blower nozzle of the blower pipe faces one side of the transition conveying platform. The multiple sets of paper pressing rollers are fixed on the sliding frame along the paperboard conveying direction. The outer surface of each set of paper pressing rollers is in contact with the surface of the transition conveying platform.

8. The paperboard waste removal and palletizing integrated production line according to claim 1, characterized in that, The paper-pressing swing belt assembly consists of a paper-pressing bracket, a paper-pressing roller shaft, and a paper-pressing driven wheel. The bracket plates on both sides of the paper-pressing bracket are hinged and fixed. The paper-pressing roller shaft and the paper-pressing driven wheel are located at both ends of the paper-pressing bracket, and a paper-pressing conveyor belt is sleeved between the paper-pressing roller shaft and the paper-pressing driven wheel. One end of the paper-pressing roller shaft is connected to a paper-pressing drive motor through a pulley and a synchronous belt.

9. The paperboard waste removal and palletizing integrated production line according to claim 1, characterized in that, The dual-insertion rod buffer assembly includes an auxiliary support frame, a double-layer temporary insertion rod frame, and an insertion rod sliding seat. The auxiliary support frame is fixedly connected to the palletizer frame and is correspondingly arranged between the double-layer temporary insertion rod frames. The double-layer temporary insertion rod frame is composed of multiple equally spaced parallel insertion rods, and one end of the double-layer temporary insertion rod frame is slidably connected to the insertion rod sliding seat. The insertion rod sliding seat is fixed on the palletizer support and extends along the extension direction of the double-layer temporary insertion rod frame.

10. The paperboard waste removal and palletizing integrated production line according to claim 1, characterized in that, The paper feeding end of the oscillating waste removal mechanism, vacuum adsorption conveying mechanism, upper suction point counting mechanism, and differential speed conveying mechanism is equipped with a paper feeding spring assembly. The paper feeding spring assembly includes a mounting frame, multiple sets of paper pressing springs, and a locking handle. The mounting frame is horizontally positioned above the cardboard. One end of the multiple sets of paper pressing springs is inclined upward to form a cardboard inlet and is fixed to the mounting frame by the locking handle. The other end abuts against the surface of the vacuum conveying platform, the transition conveying platform, and the inclined conveying platform.

Images