Intelligent joint control paper feeding device of industrial paper mounting machine

Abstract

The application discloses a kind of paper feeding devices of intelligent joint control industrial paper mounting machine, belong to the digital automatic control technical field of paper product processing machinery.The device includes rack, lifting mechanism, feeding mechanism and CCD module and controller.Lifting mechanism is driven by motor screw rod and drives material placing plate to lift, and arm module is automatically picked up paper and is sent into feeding mechanism by air nozzle.Feeding mechanism is equipped with multistage conveyor belt, and paper is stably adsorbed by negative pressure air nozzle assembly, to prevent deviation.The controller uses edge detection algorithm to extract paper position coordinates and deflection angle, calculates lateral, longitudinal and angle deviation, and according to deviation threshold value situation respectively controls the adsorption distribution of negative pressure air nozzle assembly, conveyor belt speed or telescopic cylinder adjustment limit strip, forms closed-loop automatic paper feeding control system based on visual guidance.The application is corrected by multistage deviation, significantly improves the paper feeding precision and change production efficiency of paper mounting machine, solves the problem of inaccurate positioning, easy to deviate and slow change production in prior art.

Description

Technical Field

[0001] This invention relates to the field of digital automatic control technology for paper processing machinery, specifically to a paper feeding device for a laminating machine based on vision detection and closed-loop control. Background Technology

[0002] The laminating machine is a key piece of equipment in the carton manufacturing process, used to precisely bond the linerboard to the corrugated cardboard. In this process, the precision of the paper feeding device directly affects the quality of the lamination and production efficiency.

[0003] In existing technologies, the paper feeding device of a mounting machine typically uses a simple conveyor belt structure, which makes it difficult to ensure precise positioning of the paper during the conveying process. For example, in the patent with publication number CN218560504U, "Anti-offset paper feeding mechanism for a mounting machine", a gear, a toothed plate one, and a toothed plate two are set up. An electric push rod drives the toothed plate two to move, causing the toothed plate two to drive the gear to rotate, which in turn causes the two U-shaped plates to move back and forth. The change in distance between the two push plates intermittently and centrally pushes the cardboard on the support platform, concentrating the cardboard in the middle position of the support platform and preventing the cardboard from being offset or misaligned.

[0004] However, these devices still have the following technical drawbacks: limited adaptability, only able to handle cardboard of specific sizes, making it difficult to adjust for cardboard of different sizes and unable to achieve rapid production changeover; insufficient positioning accuracy, lacking a precise detection and feedback system, making it difficult to achieve high-precision positioning; low degree of automation, with the cardboard picking, separating and conveying process relying on mechanical limits, which can easily cause paper jams or damage; and lack of intelligent adjustment functions, making it impossible to adjust conveying parameters in real time according to paper characteristics.

[0005] Therefore, there is an urgent need for a paper feeding device for mounting machines that can achieve precise, efficient, and adaptive adjustments in order to improve mounting quality and production efficiency. Summary of the Invention

[0006] The purpose of this invention is to provide a paper feeding device for an intelligent, interconnected industrial paper mounting machine to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a paper feeding device for an intelligent interconnected industrial paper mounting machine, comprising a frame, a lifting mechanism, and a feeding mechanism. The lifting mechanism is located at the rear end of the frame. A first motor is installed at the bottom of the lifting mechanism. Fixed rods are installed on both sides of the lifting mechanism. A lead screw is provided between the fixed rods. One end of the lead screw is fixedly connected to the first motor, and a first gear is provided at one end of the lead screw. A first belt is installed between the first gears. A material placement plate is provided between the lead screws. A connecting frame is fixed above the lifting mechanism. A protective cover is installed between the connecting frames. The protective cover has a semi-enclosed structure. A robotic arm module is installed inside the protective cover. An air nozzle is provided on the robotic arm module. Pressure rollers are provided between the two sides of the protective cover, located in front of the robotic arm module. A second motor is fixed above the protective cover, and the second motor is drivenly connected to the pressure rollers. A first feeding ramp is provided on the front of the lifting mechanism. A feeding mechanism is located at the front end of the frame, and a first transmission belt is provided on the feeding mechanism. A third motor is installed on one side of the feeding mechanism, and the third motor is driven by the first conveyor belt. A second conveyor belt is provided in front of the first conveyor belt, and a third conveyor belt is fixed below the second conveyor belt. A second gear is provided on the same side of the second and third conveyor belts, and a second belt is movably connected between the second gears. A fourth motor is fixed on the side of the frame, and the third conveyor belt is driven by the fourth motor. A negative pressure air nozzle assembly is provided between the first and second conveyor belts, and a guide roller is installed between the negative pressure air nozzle assembly and the first conveyor belt. A second feeding sloping plate is provided between the first and third conveyor belts. A mounting frame is fixed on the top of the frame, and a CCD module is installed on the mounting frame. A controller is provided on the side of the frame, and the CCD module is electrically connected to the controller. The negative pressure air nozzle assembly is provided with an upper air nozzle and a lower air nozzle. The controller is electrically connected to the CCD module, the first motor, the telescopic cylinder, and the negative pressure air nozzle assembly to form a digital closed-loop automatic paper feeding control system.

[0008] As a preferred embodiment, the controller uses an edge detection algorithm to extract the position coordinates (x, y) and deflection angle θ of the paper in the conveying plane; the controller compares the detected values ​​with preset reference values ​​and calculates the position deviation Δx, Δy and deflection angle deviation Δθ; when Δx exceeds the first threshold, the controller adjusts the adsorption distribution of the negative pressure nozzle assembly to correct the lateral offset; when Δy exceeds the second threshold, the controller adjusts the conveyor belt speed to correct the longitudinal offset; when Δθ exceeds the third threshold, the controller drives the telescopic cylinder to adjust the position of the limit strip to correct the angular offset.

[0009] Preferably, the surface of the material placement plate is provided with a through groove.

[0010] Preferably, the material placement plate is provided with limiting strips on both sides.

[0011] Preferably, the material placement plate has movable grooves on both sides, and telescopic cylinders are installed on both sides below the material placement plate. The telescopic cylinders and the limiting strip are fixedly connected through the movable grooves.

[0012] Preferably, the telescopic cylinders are electrically connected to the controller.

[0013] Preferably, the telescopic cylinder is electrically connected to the CCD module.

[0014] Preferably, the first motor is a stepper motor, and the first motor is electrically connected to the CCD module and the controller respectively.

[0015] Preferably, a height limit plate is provided above the first conveying inclined plate.

[0016] Preferably, a distance sensor is provided inside the protective cover, and the sensor is electrically connected to the CCD module. The distance sensor is located horizontally above the material placement plate.

[0017] Preferably, the upper air nozzle and the lower air nozzle are in a staggered relative state.

[0018] Compared with the prior art, the beneficial effects of the present invention are: 1. By combining the robotic arm module with the air nozzle, paper can be automatically picked up and placed, reducing manual intervention and improving production efficiency. A CCD module is used to monitor the paper position in real time, and the controller adjusts the actions of each actuator to ensure accurate paper delivery and positioning.

[0019] 2. The adjustable feeding plate and limit bar design can adapt to different paper sizes, improving equipment utilization. The negative pressure air nozzle assembly, together with the staggered upper and lower air nozzles, effectively prevents paper from shifting during the conveying process, improving the paper mounting quality. The controller centrally controls each motor, cylinder and sensor to achieve coordinated operation and intelligent production of the whole machine.

[0020] 3. This device adopts a vision-guided digital closed-loop control system. During operation, the CCD module acquires paper images and position data in real time, which are transmitted to the controller for digital processing and deviation calculation. Based on the calculation results, the controller automatically outputs control commands: driving the first motor to adjust the height of the feeding plate, driving the telescopic cylinder to adjust the width of the limit strip, and adjusting the suction force of the negative pressure nozzle assembly and the conveyor belt speed to achieve real-time paper correction and precise positioning. Under the unified scheduling of the controller, the robotic arm module completes automatic paper picking and feeding actions, ensuring stable, accurate, and efficient paper feeding.

[0021] 4. Experimental Data Verification: To verify the technical effect of this invention, paper feeding tests were conducted on 500 sheets of corrugated paper with a specification of 800mm × 600mm, using both the comparative literature CN218560504U (Scheme D1) and the scheme of this invention. The test results are as follows: Test Item D1 Scheme: Average Positioning Deviation of the Invention Scheme: ±1.32 mm ±0.18 mm (86.4%); Offset Exceedance Rate: 7.2% (0.4%) (94.4%); Changeover Adjustment Time: 4.5 min (0.8 min) (82.2%); Paper Jam Count: 12 times / 1000 sheets (1 time / 1000 sheets) (91.7%). Experiments show that, by combining CCD vision closed loop with a specific deviation correction algorithm, this invention achieves positioning accuracy and production change efficiency far exceeding existing technologies in the specific scenario of paper feeding in a mounting machine, resulting in unexpected technical effects. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall device of the present invention; Figure 2 This is a schematic diagram of the entire device of the present invention from another angle; Figure 3 This is a schematic diagram of the lifting mechanism in this invention; Figure 4 This is a schematic diagram of the lifting mechanism in this invention from another angle; Figure 5 This is a schematic diagram of the lifting mechanism in this invention; Figure 6 Left view of the feeding mechanism in this invention Figure 7 This is a right view of the feeding mechanism in this invention; Figure 8 This is a schematic diagram of the negative pressure nozzle assembly in this invention.

[0023] In the diagram: 1. Frame; 2. Lifting mechanism; 3. Feeding mechanism; 4. First motor; 5. Fixed rod; 6. Lead screw; 7. First gear; 8. First belt; 9. Material placement plate; 10. Connecting frame; 11. Protective cover; 12. Robotic arm module; 13. Air nozzle; 14. Pressure roller; 15. Second motor; 16. First conveyor ramp; 17. First conveyor belt; 18. Third motor; 19. Second conveyor belt; 20. Third conveyor belt; 21. Second gear; 22. Second belt; 23. Fourth motor; 24. Negative pressure air nozzle assembly; 25. Guide roller; 26. Second conveyor ramp; 27. Mounting frame; 28. CCD module; 29. ​​Controller; 30. Through slot; 31. Limiting strip; 32. Movable slot; 33. Telescopic cylinder; 34. Upper air nozzle; 35. Lower air nozzle; 36. Height limit plate; 37. Distance sensor. Detailed Implementation

[0024] 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. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figure 1-8 The present invention provides a technical solution: Example 1: A paper feeding device for an intelligent, interconnected industrial paper mounting machine A paper feeding device for an intelligent interconnected industrial paper mounting machine comprises three main parts: a frame 1, a lifting mechanism 2, and a feeding mechanism 3.

[0026] The frame 1 has a lifting mechanism 2 at its rear end. A first motor 4 is installed at the bottom of the lifting mechanism 2. Fixed rods 5 are installed on both sides of the lifting mechanism 2. A lead screw 6 is provided between the fixed rods 5. One end of the lead screw 6 is fixedly connected to the first motor 4, and a first gear 7 is provided at one end of the lead screw 6. A first belt 8 is installed between the first gears 7, and a material feeding plate 9 is provided between the lead screws 6. The first motor 4 is preferably a stepper motor. Through the transmission of the first gear 7 and the first belt 8, it drives the two lead screws 6 to rotate synchronously, thereby driving the material feeding plate 9 to move up and down, realizing the automatic paper lifting function.

[0027] A connecting frame 10 is fixed above the lifting mechanism 2, and a protective cover 11 is installed between the connecting frames 10. The protective cover 11 has a semi-enclosed structure, and a robotic arm module 12 is installed inside the protective cover 11. An air nozzle 13 is provided on the robotic arm module 12. The robotic arm module 12 can be a multi-joint robotic arm or a Cartesian coordinate robotic arm. The air nozzle 13 at its end picks up paper by negative pressure adsorption, realizing the automated picking and placing of paper.

[0028] Pressure rollers 14 are arranged between the two sides of the protective cover 11, and the pressure rollers 14 are located in front of the robotic arm module 12. A second motor 15 is fixed above the protective cover 11, and the second motor 15 is connected to the pressure rollers 14 in a transmission manner. After the paper is placed by the robotic arm module 12, the pressure rollers 14 initially compact it to ensure the stability of the paper position.

[0029] The lifting mechanism 2 has a first feeding ramp 16 on its front side, and the frame 1 has a feeding mechanism 3 at its front end. The feeding mechanism 3 has a first conveyor belt 17 on its front end, and a third motor 18 is installed on one side of the feeding mechanism 3. The third motor 18 is connected to the first conveyor belt 17 in a transmission manner. After the paper is picked up from the feeding plate 9, it slides onto the first conveyor belt 17 via the first feeding ramp 16 and enters the feeding stage.

[0030] A second conveyor belt 19 is located in front of the first conveyor belt 17, and a third conveyor belt 20 is fixed below the second conveyor belt 19. A second gear 21 is located on the same side of both the second conveyor belt 19 and the third conveyor belt 20. A second belt 22 is movably connected between the second gears 21. A fourth motor 23 is fixed to the side of the frame 1, and the third conveyor belt 20 is connected to the fourth motor 23 in a transmission connection. The fourth motor 23 drives the third conveyor belt 20, which in turn drives the second conveyor belt 19 synchronously through the transmission of the second gears 21 and the second belt 22, thus achieving multi-stage paper conveying.

[0031] A negative pressure air nozzle assembly 24 is provided between the first conveyor belt 17 and the second conveyor belt 19. A guide roller 25 is installed between the negative pressure air nozzle assembly 24 and the first conveyor belt 17. A second feeding ramp 26 is provided between the first conveyor belt 17 and the third conveyor belt 20. The negative pressure air nozzle assembly 24 uses negative pressure adsorption to stably press the paper onto the conveyor belt, preventing it from shifting during transport. The guide roller 25 guides the paper to ensure a smooth transition.

[0032] A mounting bracket 27 is fixed above the frame 1, and a CCD module 28 is mounted on the mounting bracket 27. A controller 29 is provided on the side of the frame 1, and the CCD module 28 is electrically connected to the controller 29. The CCD module 28 monitors the position of the paper in real time during the feeding process and transmits the image data to the controller 29. The controller 29 determines whether the paper is off-center based on the image data and adjusts the actions of each actuator accordingly.

[0033] The negative pressure air nozzle assembly 24 is provided with an upper air nozzle 34 and a lower air nozzle 35, and the air ports of the upper air nozzle 34 and the lower air nozzle 35 are staggered relative to each other. This staggered design can form a larger adsorption area and improve the stability of paper fixation.

[0034] The controller 29 is electrically connected to the CCD module 28, the first motor 4, the telescopic cylinder 33, and the negative pressure nozzle assembly 24 to form a digital closed-loop automatic paper feeding control system.

[0035] The core control algorithm of this embodiment is as follows: The controller 29 uses an edge detection algorithm to extract the position coordinates (x, y) and deflection angle θ of the paper in the conveying plane; the controller compares the detected values ​​with preset reference values ​​and calculates the position deviation Δx, Δy and deflection angle deviation Δθ; when Δx exceeds the first threshold, the controller 29 adjusts the adsorption distribution of the negative pressure nozzle assembly 24 to correct the lateral offset; when Δy exceeds the second threshold, the controller 29 adjusts the conveyor belt speed to correct the longitudinal offset; when Δθ exceeds the third threshold, the controller 29 drives the telescopic cylinder 33 to adjust the position of the limit strip 31 to correct the angular offset. Through the above multi-level closed-loop correction, high-precision real-time control of the paper position is achieved.

[0036] Example 2: Based on Example 1, this example further optimizes the structure of the material placement plate 9. The surface of the feeding plate 9 has multiple through grooves 30. These through grooves 30 can reduce the contact area between the paper and the feeding plate 9, reduce frictional resistance, and facilitate the robotic arm module 12 to pick up the paper.

[0037] The material placement plate 9 has limiting strips 31 on both sides and movable slots 32 on both sides. Telescopic cylinders 33 are installed on both sides below the material placement plate 9. The telescopic cylinders 33 and the limiting strips 31 are fixedly connected through the movable slots 32. The limiting strips 31 can be adjusted according to the paper size by the telescopic cylinders 33 to ensure that the paper stack is always in the correct position, which is convenient for the robotic arm module 12 to pick up accurately.

[0038] The telescopic cylinders 33 are electrically connected to the controller 29 and the CCD module 28. When the CCD module 28 detects a change in paper size, the controller 29 automatically controls the telescopic cylinders 33 to adjust the position of the limit strip 31, achieving adaptive adjustment.

[0039] Example 3: Based on the above examples, this example adds more intelligent control functions. A height limiting plate 36 is provided above the first feeding sloping plate 16. The height limiting plate 36 can prevent too many papers from entering the feeding mechanism at the same time, ensuring single-sheet feeding.

[0040] A distance sensor 37 is provided inside the protective cover 11, and the sensor 37 is electrically connected to the CCD module 28. The distance sensor 37 monitors the paper stack height in real time. When the paper stack height is insufficient, it will prompt the operator to add material through the controller 29, realizing intelligent management.

[0041] Performance Comparison Verification: The inventors of this invention conducted a comparative experiment, using both the existing technology CN218560504U (D1 scheme) and the scheme of this invention to test the paper feeding of the same batch of 500 sheets of corrugated paper with a specification of 800mm×600mm. The test results are shown in the table below:

[0042] Experimental data shows that, by combining CCD vision closed loop with a specific deviation correction algorithm, this invention achieves positioning accuracy and production change efficiency far exceeding existing technologies in the specific scenario of paper feeding in a mounting machine, producing unexpected technical effects and demonstrating significant progress and practicality.

[0043] Working principle: In operation, the paper to be mounted is first placed on the feeding plate 9. The CCD module 28 detects the paper size, and the controller 29 controls the telescopic cylinder 33 to adjust the position of the limit bar 31 based on the detection result, so that the paper stack is precisely positioned. The first motor 4 drives the feeding plate 9 to rise through the lead screw 6, so that the paper stack is always kept at the same height.

[0044] The robotic arm module 12 moves the air nozzle 13 to above the paper stack, picks up the top single sheet of paper by negative pressure adsorption, and then places the paper on the first feeding ramp 16. The paper slides along the first feeding ramp 16 to the first conveyor belt 17, and the third motor 18 drives the first conveyor belt 17 to transport the paper forward.

[0045] After the paper passes through the guide roller 25, it enters the negative pressure air nozzle assembly 24 area. The upper air nozzle 34 and the lower air nozzle 35 stably adsorb the paper through the staggered suction ports to prevent it from shifting. Subsequently, the paper passes through the second conveyor belt 19 and the third conveyor belt 20 in sequence, and is finally output to the subsequent mounting station via the second feeding inclined plate 26.

[0046] Throughout the conveying process, the CCD module 28 continuously monitors the paper position, and the controller 29 executes the following correction steps in real time: extracting the paper position coordinates (x, y) and deflection angle θ, and comparing them with preset reference values ​​to obtain deviations Δx, Δy, and Δθ; if the lateral deviation exceeds the threshold, adjusting the adsorption distribution of the negative pressure nozzle assembly 24; if the longitudinal deviation exceeds the threshold, adjusting the conveyor belt speed; if the angular deviation exceeds the threshold, driving the telescopic cylinder 33 to adjust the limit bar 31. Through the above multi-level closed-loop correction, accurate paper conveying is ensured.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A paper feeding device for an intelligent, interconnected industrial paper mounting machine, characterized in that: The device includes a frame (1), a lifting mechanism (2), and a feeding mechanism (3). The lifting mechanism (2) is located at the rear end of the frame (1). A first motor (4) is installed at the bottom of the lifting mechanism (2). Fixed rods (5) are installed on both sides of the lifting mechanism (2). A lead screw (6) is provided between the fixed rods. One end of the lead screw (6) is fixedly connected to the first motor (4), and a first gear (7) is provided at one end of the lead screw (6). A first belt (8) is installed between the first gears (7). A material placement plate (9) is provided between the lead screws (6). A connecting frame (10) is fixed above the lifting mechanism (2). A protective cover (11) is installed between the connecting frames (10). The structure is semi-enclosed. A robotic arm module (12) is installed inside the protective cover (11). An air nozzle (13) is provided on the robotic arm module (12). A pressure roller (14) is provided between the two sides of the protective cover (11). The pressure roller (14) is located in front of the robotic arm module (12). A second motor (15) is fixed above the protective cover (11). The second motor (15) is connected to the pressure roller (14) in a transmission manner. A first feeding ramp (16) is provided on the front of the lifting mechanism (2). A feeding mechanism (3) is provided at the front end of the frame (1). A first conveyor belt (17) is provided on the feeding mechanism (3). A third motor (18) is installed on one side of the feeding mechanism (3). 8) A transmission connection is formed with the first conveyor belt (17). A second conveyor belt (19) is provided in front of the first conveyor belt (17). A third conveyor belt (20) is fixed below the second conveyor belt (19). A second gear (21) is provided on the same side of the second conveyor belt (19) and the third conveyor belt (20). A second belt (22) is movably connected between the second gears (21). A fourth motor (23) is fixed on the side of the frame (1). The third conveyor belt (20) is connected to the fourth motor (23). A negative pressure nozzle assembly (24) is provided between the first conveyor belt (17) and the second conveyor belt (19). The negative pressure nozzle assembly (24) is connected to the first conveyor belt (17) and the third conveyor belt (20). A guide roller (25) is installed between the first conveyor belt (17) and the third conveyor belt (20). A second feeding sloping plate (26) is provided between the first conveyor belt (17) and the third conveyor belt (20). A mounting frame (27) is fixed above the frame (1). A CCD module (28) is installed on the mounting frame (27). A controller (29) is provided on the side of the frame (1). The CCD module (28) is electrically connected to the controller (29). An upper air nozzle (34) and a lower air nozzle (35) are respectively provided on the negative pressure air nozzle assembly (24). The controller (29) is electrically connected to the CCD module (28), the first motor (4), the telescopic cylinder (33), and the negative pressure air nozzle assembly (24) to form a digital closed-loop automatic paper feeding control system. The controller (29) is characterized in that it is configured to: An edge detection algorithm is used to extract the position coordinates (x, y) and deflection angle θ of the paper in the conveying plane; the detected values ​​are compared with preset reference values ​​to calculate the position deviation △x, △y and deflection angle deviation △θ; When Δx exceeds the first threshold, the adsorption distribution of the negative pressure nozzle assembly (24) is controlled to correct the lateral offset; When Δy exceeds the second threshold, control the conveyor belt speed to correct the longitudinal offset; When △θ exceeds the third threshold, the telescopic cylinder (33) is driven to adjust the position of the limit bar (31) to correct the angular offset.

2. The paper feeding device of an intelligent interconnected industrial paper mounting machine according to claim 1, characterized in that: The surface of the material placement plate (9) is provided with a through groove (30).

3. The paper feeding device of an intelligent interconnected industrial paper mounting machine according to claim 1, characterized in that: Limiting strips (31) are provided on both sides of the material placement plate (9).

4. The paper feeding device of an intelligent interconnected industrial paper mounting machine according to claim 3, characterized in that: The material placement plate (9) has movable grooves (32) on both sides, and telescopic cylinders (33) are installed on both sides below the material placement plate (9). The telescopic cylinders (33) and the limiting strip (31) are fixedly connected through the movable grooves (32).

5. The paper feeding device of an intelligent interconnected industrial paper mounting machine according to claim 4, characterized in that: The telescopic cylinder (33) is electrically connected to the controller (29).

6. The paper feeding device of an intelligent interconnected industrial paper mounting machine according to claim 1, characterized in that: The telescopic cylinder (33) is electrically connected to the CCD module (28).

7. The paper feeding device of an intelligent interconnected industrial paper mounting machine according to claim 1, characterized in that: The first motor (4) is a stepper motor, and the first motor (4) is electrically connected to the CCD module (28) and the controller (29) respectively.

8. The paper feeding device of an intelligent interconnected industrial paper mounting machine according to claim 1, characterized in that: A height limit plate (36) is provided above the first conveying inclined plate (16).

9. The paper feeding device of an intelligent interconnected industrial paper mounting machine according to claim 1, characterized in that: The protective cover (11) is provided with a distance sensor (37) inside, and the sensor (37) is electrically connected to the CCD module (28). The distance sensor (37) is located horizontally above the material plate (9).

10. The paper feeding device of an intelligent interconnected industrial paper mounting machine according to claim 1, characterized in that: The upper air nozzle (34) and the lower air nozzle (35) are in a misaligned relative state.

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