Conveying equipment for corrugated board processing

Abstract

The invention discloses conveying equipment for corrugated board processing, and relates to the technical field of corrugated board conveying, and the conveying equipment is technically characterized by comprising a conveying suspension frame and an electric sliding rail fixedly mounted on the conveying suspension frame, an electric sliding block is slidably connected to the electric sliding rail, and a corrugated board adsorption structure is arranged on the electric sliding block; the corrugated board adsorption structure comprises an electric telescopic rod fixedly installed at the center of the bottom of the electric sliding block, a suction pump is fixedly installed at the output end of the electric telescopic rod, a rotating unit is arranged at the suction end of the suction pump, and a main pipe is fixedly installed on the rotating unit. Under the cooperation of the suction pump and the rotating unit, the surface of the corrugated board is firstly subjected to rotating blowing cleaning, then multi-point pressing attachment and negative pressure adsorption are achieved through the hollow conical barrel and the center abutting column, the problems of deviation, surface scratching and corner crushing of the corrugated board in the conveying process are effectively solved, and the conveying stability and the finished product quality are improved.

Description

Technical Field

[0001] This invention relates to the field of corrugated cardboard conveying technology, specifically to conveying equipment used in corrugated cardboard processing. Background Technology

[0002] In the corrugated cardboard processing flow, after die-cutting, printing, and other processes, the finished boards typically need to be smoothly transferred to the stacking area or the next processing station using conveyor equipment. Currently, the industry commonly uses conveyor solutions, mainly including continuous conveyor belt conveyors and multi-set powered roller conveyors, to meet the needs of corrugated cardboard transfer on the production line.

[0003] However, in actual operation, due to factors such as long-term equipment vibration, roller installation deviation, unstable conveyor belt tension, or poor synchronization between the driving and driven rollers, corrugated cardboard is prone to positional deviation during conveying, commonly known as "deviation." This leads to continuous friction between the cardboard surface and edges and the conveyor belt and rollers, causing not only cosmetic damage such as edge crushing and surface scratches, but also potentially reducing the cardboard's compressive strength and packaging performance, ultimately affecting the quality of the finished product and the pass rate of shipment. Therefore, we propose a new type of conveying equipment for corrugated cardboard processing. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the present invention provides a conveying device for corrugated cardboard processing, which can effectively solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a conveying device for corrugated cardboard processing, comprising a conveying suspension and an electric slide rail fixedly installed on the conveying suspension, wherein an electric slider is slidably connected on the electric slide rail, and a corrugated cardboard adsorption structure is provided on the electric slider.

[0006] The corrugated cardboard adsorption structure includes an electric telescopic rod fixedly installed at the center of the bottom of an electric slider. A suction pump is fixedly installed at the output end of the electric telescopic rod. A rotating unit is provided at the suction end of the suction pump. A main pipe is fixedly installed on the rotating unit. A four-way air pipe communicating with the inner cavity of the main pipe is fixedly installed at the bottom end of the main pipe. Each of the four branches of the four-way air pipe is sealed and slidably connected to a first piston plate. A length adjustment rod penetrating the branches of the four-way air pipe is fixedly installed on the first piston plate. A hollow pressure strip is fixedly installed at the end of the length adjustment rod away from the first piston plate. Several hollow conical cylinders communicating with the inner cavity of the hollow pressure strip are fixedly installed at the bottom of the hollow pressure strip. The main pipe and the hollow pressure strip are connected through a spring telescopic tube. A sealing and diversion unit is provided in the inner cavity of the main pipe.

[0007] Preferably, the rotating unit includes an air box fixedly installed at the bottom of the suction end of the suction pump. A one-way bearing is provided at the bottom of the inner cavity of the air box. The outer ring of the one-way bearing is fixedly connected to the air box, and the inner ring of the one-way bearing is rotatably connected to the air box. A conical air duct penetrating the air box is fixedly installed on the inner ring of the one-way bearing. The conical air duct is rotatably connected to the air box in a sealed manner. A cross mounting bracket is fixedly installed on the top of the conical air duct. The cross mounting bracket is fixedly connected to the inner ring of the one-way bearing. A fan blade is fixedly installed on the cross mounting bracket. The suction end of the suction pump is connected to the air box through a right-angle bend. The end of the right-angle bend connected to the air box is located in the rotation trajectory area of ​​the fan blade.

[0008] Preferably, a stop post is fixedly installed at the center of the bottom of the four-way vent pipe, the bottom surface of the stop post is flush with the bottom surface of the hollow conical cylinder, and sealing rings are fixedly installed at the bottom of both the stop post and the hollow conical cylinder.

[0009] Preferably, a return spring is sleeved on the outer side of the length adjusting rod, one end of the return spring is fixedly installed on the first piston plate, and the other end of the return spring is fixedly installed on the hollow pressure bar.

[0010] Preferably, the blocking and diversion unit includes a blocking plate fixedly installed on the inner wall of the main pipe. A cylindrical diversion block adapted to the main pipe is slidably connected to the top of the blocking plate. A square airflow pipe penetrating the cylindrical diversion block is fixedly installed at the center of the cylindrical diversion block. An electric valve is fixedly installed on the square airflow pipe. The electric valve is located inside the cylindrical diversion block. Four DC air guide slots are opened inside the cylindrical diversion block. The DC air guide slots correspond one-to-one with the spring telescopic tubes. A second piston plate is fixedly installed at the lower end of the square airflow pipe.

[0011] Preferably, the diameter of the DC air guide groove is larger than the diameter of the spring telescopic tube, wherein the lower end of the DC air guide groove and the connecting end of the spring telescopic tube and the main tube are located on the same vertical line.

[0012] Preferably, the second piston plate is slidably connected to the main pipe, and the distance between the second piston plate and the sealing plate is equal to the distance between the center of the spring telescopic tube, the center of the main pipe connection end and the center of the lower port of the DC air guide groove.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up an adaptive adjustment mechanism consisting of a four-way air pipe, a first piston plate, a length adjustment rod and a return spring, the distribution position of the hollow pressure strip and the hollow conical cylinder can be automatically adjusted according to the actual size of the corrugated cardboard, so as to achieve multi-size compatibility and flexible positioning, and effectively avoid cardboard positioning offset, uneven edge force or local crushing problems caused by size mismatch.

[0014] 2. By setting up an airflow switching mechanism that links the rotating unit and the sealing and diversion unit, the rotating airflow is used to non-contactly blow the cardboard surface before adsorption, removing dust and impurities. This not only improves the subsequent adsorption sealing performance but also avoids surface scratches or friction damage caused by impurities in traditional conveying.

[0015] 3. By setting up a multi-point pressing and negative pressure adsorption structure consisting of a hollow conical cylinder, abutment column and sealing ring, combined with the one-way bearing to suppress rotation, the paperboard is flattened, stably adsorbed and translated without rotation during the conveying process. This fundamentally solves the problems of deviation, warping or displacement caused by equipment vibration, asynchronous rollers or tension fluctuations, and significantly improves the conveying accuracy and the integrity rate of finished products. Attached Figure Description

[0016] Figure 1 This is a complete structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the structure of the electric telescopic rod, the suction pump, and the spring telescopic tube of the present invention; Figure 3 This is a schematic diagram of the structure of the rotating unit of the present invention; Figure 4 This is a schematic diagram of the main pipe, four-way air pipe, and spring telescopic tube of the present invention. Figure 5 This is a schematic diagram of the hollow pressure bar and hollow conical cylinder of the present invention; Figure 6 For the present invention Figure 5 Enlarged structural diagram at point A above; Figure 7 This is a cross-sectional structural diagram of the rotating unit and the blocking and diverting unit of the present invention; Figure 8 This is an enlarged structural schematic diagram of the cross-section of the rotating unit of the present invention; Figure 9 This is an enlarged structural schematic diagram of the cross-section of the blocking and diversion unit of the present invention; Figure 10 This is a schematic diagram of the cylindrical flow divider and electric valve of the present invention.

[0017] In the picture: 1. Conveyor suspension; 2. Electric slide rail; 3. Electric slider; 4. Corrugated cardboard adsorption structure; 401. Electric telescopic rod; 402. Suction pump; 403. Rotating unit; 4031. Air box; 4032. One-way bearing; 4033. Conical air duct; 4034. Cross mounting bracket; 4035. Fan blade; 4036. Right-angle bend; 404. Main pipe; 405. Four-way air pipe; 406. First piston plate; 407. Hollow pressure strip; 408. Hollow conical cylinder; 409. Spring telescopic tube; 410. Sealing and diversion unit; 4101. Sealing plate; 4102. Cylindrical diversion block; 4103. Square airflow pipe; 4104. Electric valve; 4105. DC air guide groove; 4106. Second piston plate; 411. Length adjusting rod; 5. Abutment column; 6. Sealing ring; 7. Return spring. Detailed Implementation

[0018] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0019] This invention provides a technical solution: Please see Figures 1-10 A conveying device for corrugated cardboard processing is characterized by comprising a conveying suspension 1 and an electric slide rail 2 fixedly installed on the conveying suspension 1, an electric slider 3 slidably connected on the electric slide rail 2, and a corrugated cardboard adsorption structure 4 provided on the electric slider 3.

[0020] The corrugated cardboard adsorption structure 4 includes an electric telescopic rod 401 fixedly installed at the center of the bottom of the electric slider 3. A suction pump 402 is fixedly installed at the output end of the electric telescopic rod 401. A rotating unit 403 is provided at the suction end of the suction pump 402. A main pipe 404 is fixedly installed on the rotating unit 403. A four-way air pipe 405 communicating with the inner cavity of the main pipe 404 is fixedly installed at the bottom end of the main pipe 404. Each of the four branch pipes of the four-way air pipe 405 is sealed and slidably connected to a first piston plate. 406. A length adjustment rod 411 is fixedly installed on the first piston plate 406, passing through the branch pipe of the four-way air pipe 405. A hollow pressure strip 407 is fixedly installed at the end of the length adjustment rod 411 away from the first piston plate 406. Several hollow conical cylinders 408 communicating with the inner cavity of the hollow pressure strip 407 are fixedly installed at the bottom of the hollow pressure strip 407. The main pipe 404 is connected to the hollow pressure strip 407 through a spring telescopic tube 409. A sealing and diversion unit 410 is provided in the inner cavity of the main pipe 404.

[0021] The conveying equipment consists of a conveying suspension 1 and an electric slide rail 2 forming the main conveying frame. The corrugated cardboard adsorption structure 4, carried by the electric slider 3, serves as the core actuator. Its operation begins with the lifting control of the electric telescopic rod 401, which drives the suction pump 402 and the rotating unit 403 to descend as a whole, so that the hollow conical cylinder 408 contacts the cardboard surface. Subsequently, the suction pump 402 starts, and under the linkage of the four-way air pipe 405 and the first piston plate 406, it pushes the length adjusting rod 411 to drive the hollow pressure strip 407 to perform radial extension and contraction, realizing the adaptive wrapping and positioning of cardboard of different sizes. At the same time, the spring telescopic tube 409 keeps the air passage open. During this process, the sealing and diversion unit 410 controls the airflow path switching, enabling the system to switch orderly between three working modes: size adjustment, surface cleaning, and negative pressure adsorption. Its function is to transform the traditional continuous conveying into an intelligent conveying method that can adaptively adjust, perform fixed-point adsorption, and smoothly transfer. Through the organic combination of mechanical structure and pneumatic control, it effectively suppresses the deviation, friction, and deformation of cardboard during the conveying process, thereby improving the conveying accuracy and finished product quality.

[0022] Please see Figure 2 , Figure 3 , Figure 4 , Figure 7 and Figure 8 The rotating unit 403 includes an air box 4031 fixedly installed at the bottom of the suction end of the suction pump 402. A one-way bearing 4032 is provided at the bottom of the inner cavity of the air box 4031. The outer ring of the one-way bearing 4032 is fixedly connected to the air box 4031, and the inner ring of the one-way bearing 4032 is rotatably connected to the air box 4031. A conical air duct 4033 penetrating the air box 4031 is fixedly installed on the inner ring of the one-way bearing 4032. The conical duct 4033 is sealed and rotatably connected to the air box 4031. A cross mounting bracket 4034 is fixedly installed on the top of the conical duct 4033. The cross mounting bracket 4034 is fixedly connected to the inner ring of the one-way bearing 4032. A fan blade 4035 is fixedly installed on the cross mounting bracket 4034. The suction end of the suction pump 402 is connected to the air box 4031 through a right-angle bend 4036. The end of the right-angle bend 4036 connected to the air box 4031 is located in the rotation trajectory area of ​​the fan blade 4035.

[0023] The operation of the rotating unit 403 begins with the suction pump 402 starting, after which airflow enters the air box 4031 through the right-angle bend 4036. At this time, the airflow directionally impacts the fan blades 4035, causing them to rotate around the axis of the one-way bearing 4032, which in turn drives the main pipe 404 and the bottom adsorption assembly to rotate as a whole, realizing the rotational purging of the hollow conical cylinder 408. When switching to the adsorption and conveying stage, the one-way bearing 4032 automatically locks the rotation function to maintain system stability. Its function is to achieve self-cleaning pretreatment of the cardboard surface before conveying and directional and stable control of the adsorption assembly during conveying without adding independent drive components, through the integrated design of pneumatic and mechanical transmission. This effectively removes surface impurities that affect the adsorption seal, and avoids the problems of cardboard surface scratches and position deviation caused by continuous friction or unstable positioning in traditional conveying by switching between rotation and non-rotation modes.

[0024] Please see Figures 3-6 A stop post 5 is fixedly installed at the center of the bottom of the four-way air pipe 405. The bottom surface of the stop post 5 is flush with the bottom surface of the hollow conical cylinder 408. Sealing rings 6 are fixedly installed at the bottom of both the stop post 5 and the hollow conical cylinder 408.

[0025] During equipment operation, when the electric telescopic rod 401 drives the adsorption structure to descend, the support column 5 contacts the central area of ​​the corrugated cardboard to form a support point. At the same time, each hollow conical cylinder 408 adaptively adheres to the cardboard surface under air pressure regulation. At this time, the sealing ring 6 is deformed under pressure to achieve sealing contact. When the suction pump 402 starts negative pressure adsorption, the support column 5 and the hollow conical cylinder 408 together form a multi-stage sealing adsorption unit. Its function is to prevent the cardboard from bending and deforming due to the central suspension through the coordinated cooperation of central support and peripheral sealing, and to ensure the airtightness of the negative pressure area. This effectively solves the problems of local warping of cardboard, adsorption leakage and edge wear caused by uneven pressure in traditional conveying, thereby ensuring the flatness and stability of the cardboard during the conveying process.

[0026] Please see Figure 4 , Figure 5 and Figure 6 A return spring 7 is sleeved on the outer side of the length adjustment rod 411. One end of the return spring 7 is fixedly installed on the first piston plate 406, and the other end of the return spring 7 is fixedly installed on the hollow pressure bar 407.

[0027] During operation, when the airflow pushes the first piston plate 406 outward, the length adjusting rod 411 simultaneously drives the hollow pressure strip 407 to expand radially, at which point the return spring 7 is compressed and stores energy. When the airflow pressure is released, the return spring 7 releases its elastic potential energy, pushing the hollow pressure strip 407 to reset the first piston plate 406 via the length adjusting rod 411. Its function is to achieve adaptive adjustment of the adsorption component size while ensuring its automatic reset capability through the cooperation of the elastic reset mechanism and the rigid transmission rod. This ensures the positioning and wrapping of different specifications of cardboard, and avoids positioning deviations and mechanical interference caused by mechanism jamming or untimely reset, thereby improving the equipment's adaptability and operational reliability to different sizes of cardboard.

[0028] Please see Figure 7 , Figure 9 and Figure 10 The blocking and diversion unit 410 includes a blocking plate 4101 fixedly installed on the inner wall of the main pipe 404. A cylindrical diversion block 4102 adapted to the main pipe 404 is slidably connected to the top of the blocking plate 4101. A square airflow pipe 4103 penetrating the cylindrical diversion block 4102 is fixedly installed at the center of the cylindrical diversion block 4102. An electric valve 4104 is fixedly installed on the square airflow pipe 4103. The electric valve 4104 is located inside the cylindrical diversion block 4102. Four DC air guide grooves 4105 are opened inside the cylindrical diversion block 4102. The DC air guide grooves 4105 correspond one-to-one with the spring telescopic tube 409. A second piston plate 4106 is fixedly installed at the lower end of the square airflow pipe 4103.

[0029] The operation of the blocking and diversion unit 410 begins with the opening and closing control of the electric valve 4104: when the electric valve 4104 is open, the airflow passes directly through the square airflow pipe 4103, and the DC air guide groove 4105 is in a non-connected state; when the electric valve 4104 is closed, the air pressure in the sealed air chamber pushes the second piston plate 4106 upward, causing the cylindrical diversion block 4102 to rise synchronously until the DC air guide groove 4105 connects and becomes connected with the spring telescopic tube 409. Its function is to achieve automatic switching and directional distribution of airflow paths through the linkage mechanism of pneumatic pressure and mechanical displacement, which not only ensures the direct airflow requirement during the size adjustment stage, but also ensures a stable supply of rotating airflow during the cleaning stage, thereby achieving seamless switching between multiple working modes under a single air source condition.

[0030] Please see Figures 7-10 The diameter of the DC air guide groove 4105 is larger than the diameter of the spring telescopic tube 409, and the lower end of the DC air guide groove 4105 is located on the same vertical line as the connection end of the spring telescopic tube 409 and the main tube 404.

[0031] During operation, when the cylindrical diverter block 4102 is pushed up to the working position by air pressure, the DC air guide 4105, with its diameter larger than that of the spring telescopic tube 409, forms an enclosed air passage interface, ensuring that the air passage remains unobstructed even with slight alignment deviations during airflow switching. The vertical alignment design of the lower port of the DC air guide 4105 with the connection end of the spring telescopic tube 409 and the main pipe 404 allows the airflow to pass through in a straight line along the axis at the moment of mode switching. Its function is to eliminate the risk of airflow obstruction caused by processing and assembly errors through the dual guarantee of dimensional margin and spatial alignment, and to realize the turbulent distribution of high-speed airflow to each adsorption unit during the cleaning stage, thereby ensuring the instantaneous and uniform output of surface cleaning airflow and effectively improving the stability and reliability of the system operation.

[0032] In some embodiments, the second piston plate 4106 is slidably connected to the main pipe 404 in a sealed manner, and the distance between the second piston plate 4106 and the sealing plate 4101 is equal to the distance between the center of the connecting end of the spring telescopic tube 409 and the main pipe 404 and the center of the lower port of the DC air guide groove 4105.

[0033] In this embodiment, the precise distance between the second piston plate 4106 and the sealing plate 4101 forms a key spatial positioning reference during operation: when the residual air pressure in the sealed air chamber pushes the second piston plate 4106 upward, this preset distance ensures that the DC air guide groove 4105 of the cylindrical diverter block 4102 can be precisely aligned with the connecting end of the spring telescopic tube 409; its function is to ensure the positional accuracy when the airflow channel is switched through spatial geometric constraints, and to realize the logical linkage between the piston stroke and the airflow distribution, thereby effectively avoiding the problem of airflow leakage or uneven distribution caused by alignment deviation, and improving the accuracy and reliability of the system's working mode switching.

[0034] In practical use, the working principle of this invention is as follows: When using this device to transport the finished corrugated cardboard, the finished corrugated cardboard is first transferred to the area directly below the corrugated cardboard adsorption structure 4 via external equipment. The suction pump 402 is started, and the electric valve 4104 is opened simultaneously. The suction pump 402 draws external gas into the right-angle bend 4036 (at this time, the DC air guide duct 4105 is not yet connected to the right-angle bend 4036). The gas then sequentially enters the air box 4031, the conical air duct 4033, the main pipe 404, and the four-way air duct 405. The airflow pushes the first piston plate 406 in each branch of the four-way air pipe 405 to move outward. The first piston plate 406 drives the hollow pressure strip 407 to expand outward synchronously through the length adjustment rod 411, and at the same time compresses the return spring 7. Thus, the position of the hollow pressure strip 407 in four directions can be flexibly adjusted according to the actual size of the corrugated cardboard, so that the hollow conical cylinder 408 can adapt to the distribution of corrugated cardboard of different sizes, laying the foundation for subsequent stable adsorption and suspended conveying, and effectively avoiding inaccurate positioning or uneven edge force caused by size mismatch.

[0035] After the size adjustment is completed, the electric valve 4104 and the suction pump 402 are closed. At this time, the gas remaining in the closed space formed by the main pipe 404, the four-way air pipe 405, the first piston plate 406, and the sealing plate 4101 pushes the second piston plate 4106 upward. The second piston plate 4106 drives the square airflow pipe 4103 and the cylindrical diverter block 4102 to move upward synchronously until the second piston plate 4106 contacts the sealing plate 4101 and stops. At this time, the direct current air guide groove 4105 on the cylindrical diverter block 4102 is connected to the right angle bend 4036, completing the automatic switching of the airflow path and preparing for the subsequent surface cleaning process.

[0036] The suction pump 402 is restarted, and external gas is drawn into the right-angle bend 4036 and enters the air box 4031. Under the action of the one-way bearing 4032, the airflow blows the fan blades 4035 in a directional manner, driving the cross mounting bracket 4034, conical air duct 4033, main pipe 404, and four-way air pipe 405 to rotate as a whole, thereby causing the hollow conical cylinder 408 to rotate uniformly around the axis of the main pipe 404. At the same time, the airflow is delivered to the hollow pressure strip 407 through the cross mounting bracket 4034, conical air duct 4033, main pipe 404, and spring telescopic tube 409, and finally sprayed out from the hollow conical cylinder 408, forming a rotating airflow to thoroughly sweep the surface of the corrugated cardboard, effectively removing dust or impurities adhering to the cardboard. This pretreatment process not only removes particulate matter that affects the adsorption effect, but also initially flattens the cardboard surface through the uniform airflow, reducing the risk of adsorption leakage or displacement caused by impurities or local unevenness.

[0037] After pretreatment, the electric telescopic rod 401 is lowered by an external PLC controller, causing the hollow conical cylinder 408 to contact the surface of the corrugated cardboard and apply appropriate pressure (a pressure sensor can be installed between the sealing ring 6 and the hollow conical cylinder 408 to monitor the pressure value in real time and prevent excessive pressure from damaging the cardboard structure). Simultaneously, the abutment 5 at the bottom of the four-way air pipe 405 also abuts against the center of the corrugated cardboard, and the sealing ring 6 ensures a seal at all contact points, thus forming a stable negative pressure zone inside the hollow conical cylinder 408. The hollow pressure strip 407, the hollow conical cylinder 408, and the central abutment 5 work together to achieve multi-point pressing and support of the corrugated cardboard, effectively suppressing warping or deformation and ensuring it remains flat during adsorption, avoiding adsorption failure or displacement due to localized non-adhesion.

[0038] Subsequently, the suction pump 402 restarts to draw air, firmly adsorbing the corrugated cardboard onto the hollow conical cylinder 408 under negative pressure. During this process, the one-way bearing 4032 effectively suppresses system rotation, ensuring a stable and non-rotating adsorption state. Finally, the electric slide rail 2 drives the electric slider 3 and the corrugated cardboard adsorption structure 4 to move as a whole, smoothly and accurately conveying the corrugated cardboard to the designated workstation. The entire conveying process, through a combination of non-contact pretreatment, adaptive size adjustment, multi-point pressing, and negative pressure adsorption, effectively overcomes problems such as cardboard deviation, edge wear, or surface crushing caused by equipment vibration, asynchronous rollers, or tension fluctuations in traditional conveying methods, significantly improving the stability of the conveying process and the finished product qualification rate.

[0039] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of the present invention.

Claims

1. A conveying device for corrugated cardboard processing, characterized in that, It includes a conveyor suspension (1) and an electric slide rail (2) fixedly installed on the conveyor suspension (1). An electric slider (3) is slidably connected on the electric slide rail (2). A corrugated cardboard adsorption structure (4) is provided on the electric slider (3). The corrugated cardboard adsorption structure (4) includes an electric telescopic rod (401) fixedly installed at the center of the bottom of the electric slider (3). A suction pump (402) is fixedly installed at the output end of the electric telescopic rod (401). A rotating unit (403) is provided at the suction end of the suction pump (402). A main pipe (404) is fixedly installed on the rotating unit (403). A four-way air pipe (405) communicating with the inner cavity of the main pipe (404) is fixedly installed at the bottom end of the main pipe (404). A first piston plate is sealed and slidably connected to each of the four branches of the four-way air pipe (405). 406), a length adjustment rod (411) is fixedly installed on the first piston plate (406) through the branch pipe of the four-way air pipe (405). A hollow pressure strip (407) is fixedly installed at the end of the length adjustment rod (411) away from the first piston plate (406). A plurality of hollow conical cylinders (408) communicating with the inner cavity of the hollow pressure strip (407) are fixedly installed at the bottom of the hollow pressure strip (407). The main pipe (404) is connected to the hollow pressure strip (407) through a spring telescopic tube (409). A sealing and diversion unit (410) is provided in the inner cavity of the main pipe (404).

2. The conveying equipment for corrugated cardboard processing according to claim 1, characterized in that: The rotating unit (403) includes a wind box (4031) fixedly installed at the bottom of the suction end of the suction pump (402). A one-way bearing (4032) is provided at the bottom of the inner cavity of the wind box (4031). The outer ring of the one-way bearing (4032) is fixedly connected to the wind box (4031), and the inner ring of the one-way bearing (4032) is rotatably connected to the wind box (4031). A conical air duct (4033) penetrating the wind box (4031) is fixedly installed on the inner ring of the one-way bearing (4032). The conical air duct (4033) is connected to... The air box (4031) is sealed and rotated. A cross mounting bracket (4034) is fixedly installed on the top of the conical air duct (4033). The cross mounting bracket (4034) is fixedly connected to the inner ring of the one-way bearing (4032). A fan blade (4035) is fixedly installed on the cross mounting bracket (4034). The suction end of the suction pump (402) is connected to the air box (4031) through a right-angle bend (4036). The connection end of the right-angle bend (4036) and the air box (4031) is located in the rotation trajectory area of ​​the fan blade (4035).

3. The conveying equipment for corrugated cardboard processing according to claim 1, characterized in that: A stop post (5) is fixedly installed at the center of the bottom of the four-way air pipe (405). The bottom surface of the stop post (5) is flush with the bottom surface of the hollow conical cylinder (408). Sealing rings (6) are fixedly installed at the bottom of both the stop post (5) and the hollow conical cylinder (408).

4. The conveying equipment for corrugated cardboard processing according to claim 1, characterized in that: A return spring (7) is sleeved on the outside of the length adjustment rod (411). One end of the return spring (7) is fixedly installed on the first piston plate (406), and the other end of the return spring (7) is fixedly installed on the hollow pressure bar (407).

5. The conveying equipment for corrugated cardboard processing according to claim 1, characterized in that: The blocking and diversion unit (410) includes a blocking plate (4101) fixedly installed on the inner wall of the main pipe (404). The top of the blocking plate (4101) is slidably connected to a cylindrical diversion block (4102) adapted to the main pipe (404). A square airflow pipe (4103) penetrating the cylindrical diversion block (4102) is fixedly installed at the center of the cylindrical diversion block (4102). An electric valve (4104) is fixedly installed on the square airflow pipe (4103). The electric valve (4104) is located inside the cylindrical diversion block (4102). Four DC air guide grooves (4105) are opened inside the cylindrical diversion block (4102). The DC air guide grooves (4105) correspond one-to-one with the spring telescopic tube (409). A second piston plate (4106) is fixedly installed at the lower end of the square airflow pipe (4103).

6. The conveying equipment for corrugated cardboard processing according to claim 5, characterized in that: The diameter of the DC air guide groove (4105) is larger than the diameter of the spring telescopic tube (409), wherein the lower end of the DC air guide groove (4105) is on the same vertical line as the connection end of the spring telescopic tube (409) and the main tube (404).

7. The conveying equipment for corrugated cardboard processing according to claim 5, characterized in that: The second piston plate (4106) is in a sealed sliding connection with the main pipe (404), and the distance between the second piston plate (4106) and the sealing plate (4101) is equal to the distance between the center of the connecting end of the spring telescopic tube (409) and the main pipe (404) and the center of the lower port of the DC air guide groove (4105).

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