Printing press paper feed device

Abstract

The application relates to the technical field of printing equipment and discloses a printing machine paper conveying device, which comprises a rack, a paper conveying machine box, a conveying mechanism and a first electric push rod. The printing machine paper conveying device is used for performing real-time visual detection on the thickness of paper at a feeding port through a first industrial camera, a graphic processor in a controller is used for analyzing an image, and the first electric push rod is used for synchronously controlling the up-down movement of a paper pressing assembly, so that the height of a pressing roller is automatically adjusted. Compared with a traditional manual adjustment mode, the adjustment efficiency is improved, paper damage or slipping caused by manual misjudgment is avoided, and the printing machine paper conveying device is especially suitable for a multi-batch mixed material production scene. In the paper pressing assembly, a pressure sensor is used for monitoring the pressure value of the pressing roller on the paper in real time through a jacking rod. When the pressure exceeds a preset threshold value, a pressure signal is fed back to the controller, the first electric push rod is triggered to finely adjust the pressing height, and meanwhile, a spring provides flexible buffering, so that a "detection-adjustment-buffering" pressure closed loop is formed.

Description

Technical Field

[0001] This application relates to the field of printing equipment technology, specifically to paper feeding devices for printing presses. Background Technology

[0002] A printing press is a machine that prints text and images. Modern printing presses generally consist of mechanisms for mounting the printing plate, inking, pressing, and feeding paper (including folding). Its working principle is as follows: First, the text and images to be printed are made into a printing plate, which is then mounted on the printing press. Then, ink is applied to the areas of the printing plate containing the text and images by hand or by the printing press. The ink is then transferred directly or indirectly to paper or other printing substrates (such as textiles, metal plates, plastics, leather, wood, glass, and ceramics), thereby reproducing printed materials identical to the printing plate. The invention and development of the printing press has played an important role in the dissemination of human civilization and culture.

[0003] An existing patent (publication number: CN220906599U) discloses a paper feeding device for a printing press, belonging to the field of printing equipment technology. It includes a frame, a conveying mechanism, and a holding mechanism. The frame has legs at its four corners, a paper feeding box fixedly connected to the middle of its upper part, a paper delivery table fixedly connected to the rear side of its upper part, and horizontally distributed fixed plates fixedly connected to the upper part of the frame. Each fixed plate has an air suction nozzle at its upper end, and these nozzles are connected to an external air extraction pipe. The conveying mechanism is located on the lower side inside the paper feeding box. The holding mechanism is located in the middle of the paper feeding box. This paper feeding device effectively reduces paper folding and breakage during feeding. The continuous suction from the air suction nozzles effectively reduces paper rebound and drift. It effectively adjusts and holds paper of different thicknesses. The structure is relatively simple and has a wide range of applications in the paper feeding process of printing presses.

[0004] Although the device in the aforementioned comparative document can adjust and hold paper of different thicknesses, the height of the holding roller of the aforementioned device needs to be manually adjusted according to the paper thickness, which is inefficient and prone to paper damage or slippage due to improper adjustment. Furthermore, the holding roller with fixed pressure is prone to causing indentation or damage to thin paper, while the holding force may be insufficient for thick paper, resulting in unstable conveying. Therefore, a paper feeding device for printing press is provided. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a paper feeding device for a printing press, which features intelligent thickness adjustment and adaptive pressure control.

[0006] To achieve the above objectives, this application provides the following technical solution: a paper feeding device for a printing press, comprising a frame, a paper feeding housing, a conveying mechanism, and a first electric push rod. The paper feeding housing is fixedly connected to the upper surface of the frame. The conveying mechanism is located inside the lower end of the paper feeding housing. The first electric push rod passes through the upper surface of the paper feeding housing. A paper pressing assembly is provided at the lower end of the first electric push rod. The paper pressing assembly is movably connected inside the paper feeding housing. A controller is provided on the front side of the paper feeding housing. A feed inlet is opened on the front side of the paper feeding housing. A first industrial camera is provided on the front side inside the paper feeding housing. The illumination range of the first industrial camera covers the feed inlet. A graphics processor is provided inside the controller. The first electric push rod and the first industrial camera are both electrically connected to the controller.

[0007] The above solution utilizes a first industrial camera to perform real-time visual detection of the paper thickness at the feed inlet. The graphics processor within the controller analyzes the image and simultaneously controls the first electric push rod to move the paper pressing assembly up and down, achieving fully automatic adjustment of the pressure roller height. Compared to traditional manual adjustment, this method improves efficiency and avoids paper damage or slippage caused by human error. It is particularly suitable for multi-batch mixed-material production scenarios. In the paper pressing assembly, a pressure sensor monitors the pressure value of the pressure roller on the paper in real time via a push rod. When the pressure exceeds a preset threshold, the pressure signal is fed back to the controller, triggering the first electric push rod to fine-tune the pressure holding height. Simultaneously, a spring provides flexible buffering, forming a "detection-adjustment-buffering" pressure closed loop. This design avoids indentations on thin paper while ensuring stable feeding of thick paper.

[0008] Furthermore, the paper pressing assembly includes a movable plate, which is fixedly connected to the lower end of the first electric push rod. A support frame is fixedly connected to the lower end of the movable plate. A sliding groove is opened inside the support frame, and a slider is movably connected inside the sliding groove. There are two sets of movable plates, symmetrically arranged inside the paper feeding machine box. Multiple sets of support frames and sliders are symmetrically and evenly arranged at the lower ends of the two sets of movable plates. There are four sets of the first electric push rod, which are rectangularly arranged at the upper ends of the two sets of movable plates. A top rod is fixedly connected to the upper end of the slider. A pressure sensor is fixedly connected to the upper end of the sliding groove. A spring is sleeved on the surface of the pressure sensor and the top rod. The upper end of the spring is fixedly connected to the inside of the sliding groove, and the lower end of the spring is fixedly connected to the upper surface of the slider. A holding rod is arranged between the two sets of sliders that are flush on the left and right. A holding roller is rotatably connected to the surface of the holding rod. The pressure sensor and the controller are electrically connected.

[0009] With the above solution, multiple sets of support frames and sliders are symmetrically and evenly distributed to ensure consistent pressure across the entire width of the paper, avoiding the problem of uneven pressure caused by traditional single-point adjustment.

[0010] Furthermore, a second electric push rod is provided on both the left and right sides of the paper feeding machine box. The two sets of second electric push rods arranged symmetrically on the left and right are fixedly connected to a push plate at one end. The push plate is movably connected inside the paper feeding machine box and corresponds to the upper end of the conveying mechanism.

[0011] With the above scheme, when the paper shifts laterally or tilts, the controller triggers the second electric push rod on the corresponding side to drive the push plate to extend slowly. The flexible buffer layer on the surface of the push plate contacts the edge of the paper and pushes the paper back to its original position.

[0012] Furthermore, a second industrial camera is fixedly connected to both the left and right sides inside the paper feeding machine box. Multiple sets of push plates and second electric push rods are provided and symmetrically arranged inside the paper feeding machine box. Multiple sets of the second industrial cameras are provided and evenly and symmetrically arranged inside the paper feeding machine box. One set of push plates corresponds to one set of the second industrial cameras. The second industrial cameras and the second electric push rods are both electrically connected to the controller.

[0013] Using the above method, the second industrial camera takes real-time pictures of the middle position of the paper to detect lateral deviation or tilt of the paper.

[0014] Furthermore, a flexible buffer layer is provided on the surface of the push plate.

[0015] The above solution provides a flexible buffer layer on the push plate surface to prevent hard impacts.

[0016] Furthermore, a fixing plate is provided on the upper surface of the frame, and a suction nozzle is provided at the upper end of the fixing plate. The first industrial camera is fixedly connected to the front side of the fixing plate, and the suction nozzle is connected to an external air extraction pipe. The suction nozzle cooperates with the conveying mechanism.

[0017] The above solution allows the suction nozzle and the conveying mechanism to open synchronously, generating negative pressure to adhere the paper to the surface of the conveying mechanism, thus reducing friction and drift.

[0018] Furthermore, a maintenance cover is provided at the top of the paper feeder housing, and a paper delivery platform is connected to the rear end of the paper feeder housing.

[0019] The above solution facilitates quick access to the interior for processing via the maintenance cover.

[0020] Furthermore, an audible and visual alarm is installed on the front side of the paper feeder box, and the audible and visual alarm is electrically connected to the controller.

[0021] The above system works as follows: when the pressure sensor detects a sudden increase in pressure, it determines that a paper jam has occurred. The controller immediately stops the machine and activates the suction nozzle's strong adsorption mode. Simultaneously, it controls the second electric push rod to reciprocate and vibrate the push plate to assist in loosening the paper. If the situation does not return to normal within 30 seconds, an audible and visual alarm is triggered to prompt manual intervention.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] This printing press's paper feeding device uses a first industrial camera to perform real-time visual detection of the paper thickness at the feed inlet. The graphics processor in the controller analyzes the image and simultaneously controls the first electric push rod to drive the paper pressing assembly up and down, achieving fully automatic adjustment of the pressure roller height. Compared to traditional manual adjustment methods, this improves efficiency and avoids paper damage or slippage caused by human error, making it particularly suitable for multi-batch mixed material production scenarios. In the paper pressing assembly, a pressure sensor monitors the pressure value of the pressure roller on the paper in real time via a push rod. When the pressure exceeds a preset threshold, the pressure signal is fed back to the controller, triggering the first electric push rod to fine-tune the pressure holding height. Simultaneously, a spring provides flexible buffering, forming a "detection-adjustment-buffering" pressure closed loop. This design avoids indentations on thin paper while ensuring stable feeding of thick paper. A second industrial camera monitors the paper position in real time. When a deviation is detected, the controller drives the corresponding second electric push rod to push the push plate to apply a horizontal thrust for correction. The flexible buffer layer on the push plate surface prevents hard impacts. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure in frontal three-dimensional cross-section of this application;

[0025] Figure 2 This is a three-dimensional structural diagram of the present application.

[0026] Figure 3 This is a rear-view stereoscopic structural diagram of the present application;

[0027] Figure 4 This is a top sectional view of the structure of this application;

[0028] Figure 5 This is a partial cross-sectional structural diagram of the paper pressing assembly of this application.

[0029] In the picture:

[0030] 1. Frame; 2. Paper feeder housing; 3. Conveying mechanism; 4. First electric push rod; 5. Paper pressing assembly; 501. Movable plate; 502. Support frame; 503. Slide rail; 504. Slider; 505. Pressure holding rod; 506. Pressure holding roller; 507. Top rod; 508. Spring; 509. Pressure sensor; 6. Controller; 7. First industrial camera; 8. Second electric push rod; 9. Push plate; 10. Second industrial camera; 11. Fixed plate; 12. Suction nozzle; 13. Maintenance cover; 14. Paper delivery table; 15. Audible and visual alarm; 16. Feed inlet. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] Please see Figure 1 , Figure 2 and Figure 3 The paper feeding device of the printing press in this embodiment includes a frame 1, a paper feeding housing 2, a conveying mechanism 3, and a first electric push rod 4. The paper feeding housing 2 is fixedly connected to the upper surface of the frame 1. The conveying mechanism 3 is located inside the lower end of the paper feeding housing 2. The first electric push rod 4 passes through the upper surface of the paper feeding housing 2. A paper pressing assembly 5 is provided at the lower end of the first electric push rod 4. The paper pressing assembly 5 is movably connected inside the paper feeding housing 2. A controller 6 is provided on the front side of the paper feeding housing 2. A feed inlet 16 is opened on the front side of the paper feeding housing 2. A first industrial camera 7 is provided on the front side inside the paper feeding housing 2. The illumination range of the first industrial camera 7 covers the feed inlet 16. A graphics processor is provided inside the controller 6. The first electric push rod 4 and the first industrial camera 7 are both electrically connected to the controller 6. Industrial camera 7 performs real-time visual detection of paper thickness at 16 points in the feed inlet. The graphics processor in controller 6 analyzes the images and simultaneously controls the first electric push rod 4 to drive the paper pressing assembly 5 to move up and down, achieving fully automatic adjustment of the height of the pressure roller 506. Compared with the traditional manual adjustment method, the adjustment efficiency is improved, avoiding paper damage or slippage caused by human error. It is especially suitable for multi-batch mixed material production scenarios. In the paper pressing assembly 5, pressure sensor 509 monitors the pressure value of the pressure roller 506 on the paper in real time through push rod 507. When the pressure exceeds the preset threshold, the pressure signal is fed back to controller 6, triggering the first electric push rod 4 to fine-tune the pressing height. At the same time, spring 508 provides flexible buffering, forming a "detection-adjustment-buffering" pressure closed loop. This design can avoid indentation on thin paper and ensure stable feeding of thick paper.

[0033] Please see Figure 1 , Figure 2 and Figure 5The paper pressing assembly 5 includes a movable plate 501, which is fixedly connected to the lower end of the first electric push rod 4. A support frame 502 is fixedly connected to the lower end of the movable plate 501. A slide groove 503 is provided inside the support frame 502, and a slider 504 is movably connected inside the slide groove 503. There are two sets of movable plates 501, which are symmetrically arranged inside the paper feeding machine box 2. There are multiple sets of support frames 502 and sliders 504, which are symmetrically and evenly arranged at the lower ends of the two sets of movable plates 501. There are four sets of the first electric push rod 4, which are rectangularly arranged on the upper ends of the two sets of movable plates 501. A top rod 507 is fixedly connected to the upper end of the slider 504. A pressure sensor 509 is fixedly connected to the upper end of the slide groove 503. A spring 508 is sleeved on the surface of the pressure sensor 509 and the top rod 507. The upper end of the spring 508 is fixedly connected inside the slide groove 503. The lower end of the spring 508 is fixedly connected to the upper surface of the slider 504. A pressure rod 505 is set between the two sets of sliders 504 that are flush with each other on the left and right. A pressure roller 506 is rotatably connected to the surface of the pressure rod 505. The pressure sensor 509 and the controller 6 are electrically connected. The left and right sides of the paper feeder box 2 are provided with second electric push rods 8. The two sets of second electric push rods 8 that are symmetrically arranged on the left and right are fixedly connected to push plates 9 at opposite ends. The push plates 9 are movably connected inside the paper feeder box 2 and correspond to the upper end of the conveying mechanism 3. Multiple sets of support frames 502 and sliders 504 are symmetrically and evenly distributed to ensure that the pressure is consistent across the entire width of the paper, avoiding the problem of uneven pressure in traditional single-point adjustment. When the paper shifts laterally or tilts, the controller 6 triggers the second electric push rod 8 on the corresponding side to drive the push plate 9 to slowly extend. The flexible buffer layer on the surface of the push plate 9 contacts the edge of the paper with the thrust, pushing the paper back to its original position.

[0034] Please see Figure 1 , Figure 2 and Figure 3 The paper feeder housing 2 has two fixed industrial cameras 10 on both the left and right sides. Multiple sets of push plates 9 and second electric push rods 8 are symmetrically arranged inside the paper feeder housing 2. Multiple sets of second industrial cameras 10 are evenly and symmetrically arranged inside the paper feeder housing 2. One set of push plates 9 corresponds to one set of second industrial cameras 10. The second industrial cameras 10 and the second electric push rods 8 are electrically connected to the controller 6. The surface of the push plate 9 is provided with a flexible buffer layer. The upper surface of the frame 1 is provided with a fixed plate 11. The upper end of the fixed plate 11 is provided with a suction nozzle 12. The first industrial camera 7 is fixedly connected to the front side of the fixed plate 11. The suction nozzle 12 is connected to the external air extraction pipe. The suction nozzle 12 works with the conveying mechanism 3. The second industrial camera 10 takes real-time pictures of the middle position of the paper to detect the lateral deviation or tilt of the paper. The flexible buffer layer on the surface of the push plate 9 avoids hard impact. The suction nozzle 12 and the conveying mechanism 3 open synchronously to generate negative pressure adsorption, which fixes the paper on the surface of the conveying mechanism 3 and reduces friction and drift.

[0035] Please see Figure 1 , Figure 2 and Figure 4 The paper feeder housing 2 has a maintenance cover 13 at its upper end, and a paper delivery table 14 is connected to the rear end of the paper feeder housing 2. An audible and visual alarm 15 is installed on the front of the paper feeder housing 2, which is electrically connected to the controller 6. This allows for quick access to the internal components through the maintenance cover 13 for troubleshooting. When the pressure sensor 509 detects a sudden increase in pressure, it determines that a paper jam has occurred. The controller 6 immediately stops the machine and activates the suction nozzle 12 in strong suction mode. Simultaneously, it controls the second electric push rod 8 to reciprocate and vibrate the push plate 9 to assist in loosening the paper. If the situation does not return to normal within 30 seconds, the audible and visual alarm 15 is triggered to prompt manual intervention.

[0036] In this embodiment, the first industrial camera 7 performs real-time visual detection of the paper thickness at the feed inlet 16. The graphics processor in the controller 6 analyzes the image and simultaneously controls the first electric push rod 4 to drive the paper pressing assembly 5 to move up and down, realizing fully automatic adjustment of the height of the holding roller 506. Compared with the traditional manual adjustment method, the adjustment efficiency is improved, avoiding paper damage or slippage caused by human misjudgment. It is especially suitable for multi-batch mixed material production scenarios. In the paper pressing assembly 5, the pressure sensor 509 monitors the pressure value of the holding roller 506 on the paper in real time through the push rod 507. When the pressure exceeds the preset threshold, the pressure signal is fed back to the controller 6, triggering the first electric push rod 4 to fine-tune the holding height. At the same time, the spring 508 provides flexible buffering, forming a "detection-adjustment-buffering" pressure closed loop. This design can avoid indentation on thin paper and ensure stable conveying of thick paper. The second industrial camera 10 monitors the paper position in real time. When a deviation is detected, the controller 6 drives the corresponding second electric push rod 8 to push the push plate 9 to apply a horizontal thrust for correction. The flexible buffer layer on the surface of the push plate 9 avoids hard impact.

[0037] The working principle of the above embodiment is as follows: When paper enters the paper feeder box 2 through the feed inlet 16, the first industrial camera 7 takes a picture of the leading edge of the paper to obtain an image containing paper thickness information. The graphics processor in the controller 6 analyzes the image, and the controller 6 sends a command to the first electric push rod 4 according to the thickness data, driving the movable plate 501 of the paper pressing assembly 5 to move up and down. The four sets of first electric push rods 4 are controlled to descend synchronously to ensure that the initial holding force is adapted to the paper thickness. The holding roller 506 is connected to the slider 504 through the holding rod 505. When the paper passes between the holding roller 506 and the conveying mechanism 3, the slider 504 moves up along the slide groove 503 under the action of the paper support force, pushing the top rod 507 to contact the pressure sensor 509. The pressure sensor 509 converts the real-time pressure value into an electrical signal and feeds it back to the controller 6. If the actual pressure deviates from the preset value, the controller 6 fine-tunes the stroke of the first electric push rod 4, and drives the holding roller 506 to move up and down slightly through the movable plate 501 until the pressure reaches the standard. Meanwhile, spring 508 provides flexible cushioning to prevent paper damage from hard impacts. Multiple sets of support frames 502 and sliders 504 are symmetrically and evenly distributed to ensure consistent holding force across the entire width of the paper, avoiding the uneven pressure problem of traditional single-point adjustment. The suction nozzle 12 and the conveying mechanism 3 open synchronously to generate negative pressure adsorption, fixing the paper to the surface of the conveying mechanism 3 and reducing friction and drift. The second industrial camera 10 captures real-time images of the center position of the paper. When the paper shifts laterally or tilts, the controller 6 triggers the corresponding second electric push rod 8 to drive the push plate 9 to slowly extend. The flexible buffer layer on the surface of the push plate 9 pushes the paper edge, pushing the paper back to its original position. After resetting, the second industrial camera 10 detects that the paper position is normal, and the second electric push rod 8 automatically retracts. If the paper stops due to wrinkles, overlaps, or uneven thickness, the pressure sensor 509 detects a sudden increase in pressure and determines that it is jammed. The controller 6 immediately stops the machine and activates the strong adsorption mode of the suction nozzle 12, while controlling the second electric push rod 8 to reciprocate and vibrate the push plate 9 to assist in loosening the paper. If the situation does not return to normal within 30 seconds, an audible and visual alarm 15 is triggered to prompt manual intervention. Simultaneously, the internal components can be quickly accessed and addressed through the maintenance cover 13. Components such as the first industrial camera 7 (thickness detection), the second industrial camera 10 (position detection), the pressure sensor 509 (pressure feedback), and the suction nozzle 12 (adsorption control) communicate with each other through the controller 6, forming a closed loop of "detection-analysis-execution". The controller 6 can store parameters such as the holding height, pressure threshold, and correction sensitivity for different paper types, such as coated paper and newsprint. These parameters are automatically recalled when switching production tasks, reducing manual debugging time and improving changeover efficiency.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0039] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A printing machine paper feed device, comprising a frame (1), a paper feed machine box (2), a conveying mechanism (3) and a first electric push rod (4), characterized in that: The paper feeding machine box (2) is fixedly connected to the upper surface of the rack (1), the conveying mechanism (3) is arranged at the lower end of the paper feeding machine box (2), the first electric push rod (4) is arranged on the upper surface of the paper feeding machine box (2), the first electric push rod (4) is provided with a paper pressing assembly (5) at the lower end, the paper pressing assembly (5) is movably connected in the paper feeding machine box (2), the paper feeding machine box (2) is provided with a controller (6) on the front side, the paper feeding machine box (2) is provided with an inlet (16) on the front side, the paper feeding machine box (2) is provided with a first industrial camera (7) on the front side, the first industrial camera (7) covers the inlet (16) in the illumination range, the controller (6) is provided with a graphic processor, and the first electric push rod (4) and the first industrial camera (7) are electrically connected with the controller (6).

2. The printing press paper feed arrangement of claim 1 wherein: The paper pressing assembly (5) comprises movable plates (501), the movable plates (501) are fixedly connected to the lower end of the first electric push rod (4), the movable plates (501) are fixedly connected with support frames (502) at the lower end, the support frames (502) are provided with sliding grooves (503) in the inside, the sliding grooves (503) are movably connected with sliding blocks (504) in the inside, the movable plates (501) are provided with two groups, and are symmetrically arranged in the paper feeding machine box (2), the support frames (502) and the sliding blocks (504) are provided with multiple groups, and are symmetrically and uniformly arranged at the lower end of the two groups of movable plates (501), the first electric push rod (4) is provided with four groups, and is arranged in a rectangular shape at the upper end of the two groups of movable plates (501), the sliding blocks (504) are fixedly connected with top rods (507) at the upper end, the sliding grooves (503) are fixedly connected with pressure sensors (509) at the upper end in the inside, the pressure sensors (509) and the top rods (507) are sleeved with springs (508) on the surface, the springs (508) are fixedly connected to the inside of the sliding grooves (503) at the upper end, the springs (508) are fixedly connected to the upper surface of the sliding blocks (504) at the lower end, the sliding blocks (504) arranged in parallel on the left and right are provided with pressure holding rods (505) in the middle, the pressure holding rods (505) are rotatably connected with pressure holding rollers (506) on the surface, and the pressure sensors (509) and the controller (6) are electrically connected.

3. The printing press paper feed apparatus of claim 1 wherein: The second electric push rod (8) is arranged on the left and right sides of the paper feeding machine box (2), and the two groups of second electric push rods (8) arranged symmetrically on the left and right are fixedly connected with push plates (9) at opposite ends, and the push plates (9) are movably connected in the paper feeding machine box (2) and correspond to the upper end of the conveying mechanism (3).

4. The printing press paper feed arrangement of claim 3 wherein: The second industrial camera (10) is fixedly connected to the left and right sides inside the paper feeding machine box (2), a plurality of push plates (9) and second electric push rods (8) are symmetrically arranged inside the paper feeding machine box (2), a plurality of second industrial cameras (10) are uniformly and symmetrically arranged inside the paper feeding machine box (2), one group of push plates (9) corresponds to one group of second industrial cameras (10), and the second industrial cameras (10) and the second electric push rods (8) are electrically connected with the controller (6).

5. The printing press paper feed arrangement of claim 4 wherein: The push plate (9) is provided with a flexible buffer layer on the surface.

6. The printing press sheet transport of claim 1 wherein: The upper surface of the rack (1) is provided with a fixed plate (11), the upper end of the fixed plate (11) is provided with a suction nozzle (12), the first industrial camera (7) is fixedly connected to the front side of the fixed plate (11), the suction nozzle (12) is connected with an external suction pipe in communication, and the suction nozzle (12) cooperates with the conveying mechanism (3).

7. The printer paper feed apparatus of claim 1 wherein: The upper end of the paper feeding machine box (2) is provided with a maintenance cover (13), and the rear end of the paper feeding machine box (2) is connected with a paper delivery table (14).

8. The printer paper feed apparatus of claim 1 wherein: The front side of the paper feeding machine box (2) is provided with an audible and visual alarm (15), and the audible and visual alarm (15) is electrically connected with the controller (6).

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