Full-automatic laser holography printing machine with paper conveying device

Abstract

A full-automatic laser holography printing machine with a paper conveying device comprises a printing machine body, a controller and the paper conveying device. The paper conveying device comprises a material conveying mechanism, a material taking mechanism and a pretreatment mechanism. The material conveying mechanism comprises a first driving motor, a first rotating shaft and a material conveying belt; two groups of first rotating shafts driven by a first driving motor are arranged in parallel, one group of first rotating shafts are rotationally arranged outside the printing machine body, and the other group of first rotating shafts are rotationally arranged on a feeding hole of the printing machine body; the two sets of first rotating shafts are sleeved with the material conveying belt. The material taking mechanism is arranged at the feeding end of the material conveying belt. The pretreatment mechanism is arranged on the conveying belt and located between the material taking mechanism and the printing machine body. The controller is in communication connection with the paper conveying device. The material taking mechanism is arranged, so that the electric adsorption piece can accurately adsorb the specific position of the paper, and then the paper is conveyed to the specific position; and the arranged limiting and folding edge removing assembly limits the paper on one hand and removes folding edges and wrinkles on the other hand.

Description

Technical Field

[0001] This invention relates to the field of printing equipment, and more particularly to a fully automatic laser holographic printing machine with a paper conveying device. Background Technology

[0002] A printing press is a machine used to print text and images. Modern printing presses generally consist of mechanisms for plate mounting, inking, impression, and paper feeding. 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. Ink is then applied manually or by the press to the areas of the printing plate containing the text and images, and the ink is directly or indirectly transferred to paper or other substrates (such as textiles, metal plates, plastics, leather, wood, glass, and ceramics), thus reproducing a printed product identical to the printing plate. The invention and development of the printing press has played a vital role in the dissemination of human civilization and culture. Fully automatic laser holographic printing presses are a common type of printing equipment. They typically use manual paper feeding, which not only results in low accuracy and reduced efficiency, but also fails to address issues such as folds and adhesive residue on the paper in a timely manner, affecting subsequent printing results.

[0003] To address the aforementioned issues, this application proposes a fully automatic laser holographic printing machine with a paper conveying device. Summary of the Invention

[0004] (a) Purpose of the invention To address the technical problems existing in the background art, this invention proposes a fully automatic laser holographic printing machine with a paper conveying device. This invention includes a material handling mechanism that, by sequentially adjusting the position of the first mounting frame and the rotation angle of the second rotating shaft, enables the electric suction component to accurately pick up the paper at a specific position, thereby conveying it to that position. This improves the accuracy of paper conveying and reduces the workload of subsequent pre-processing. A pre-processing mechanism is also included, in which a limiting and fold-removing component limits the paper to facilitate subsequent printing and removes folds and wrinkles, improving the printing effect.

[0005] (II) Technical Solution To address the aforementioned problems, this invention provides a fully automatic laser holographic printing machine with a paper conveying device, comprising a printing machine body, a controller, and a paper conveying device; the paper conveying device includes a feeding mechanism, a picking mechanism, and a pre-treatment mechanism; the feeding mechanism includes a first drive motor, a first rotating shaft, and a feeding belt; two sets of the first rotating shafts, driven by the first drive motor, are arranged in parallel, one set rotating outside the printing machine body, and the other rotating at the feed inlet of the printing machine body; the feeding belt is fitted onto the two sets of first rotating shafts; the picking mechanism is located at the feed end of the feeding belt; the pre-treatment mechanism is located on the feeding belt, between the picking mechanism and the printing machine body; the controller and the paper conveying device are communicatively connected; the picking mechanism... The mechanism includes a mounting plate, a base, a first drive cylinder, a first mounting frame, a second drive motor, a third drive motor, a second rotating shaft, an electric suction component, and a distance sensor. The base is positioned below the conveyor belt. Two sets of first drive cylinders are provided, each set positioned on one side of the conveyor belt, with the cylinder bodies slidably connected to the base. Each mounting plate corresponds to one of the first drive cylinders; the opposite ends of the two sets of mounting plates are rotatably connected to the two ends of the first rotating shaft, and the bottom ends are connected to the telescopic rods of the corresponding side's first drive cylinder. The first mounting frame, driven by the second drive motor, spans the conveyor belt, with both ends rotatably connected to the corresponding side's mounting plate. The second rotating shaft, driven by the third drive motor, is rotatably mounted on the first mounting frame. The electric suction component... The attachments are mounted on the second rotating shaft; the distance sensor is mounted on the first mounting bracket; the pre-processing mechanism includes a pre-processing channel, a limiting edge-removing assembly, a first cleaning component, a compaction component, a second cleaning component, and a scanner; one end of the pre-processing channel through which the conveyor section of the conveyor belt passes is connected to the printing press body; the scanner, the limiting edge-removing assembly, the first cleaning component, the compaction component, and the second cleaning component are sequentially arranged inside the pre-processing channel according to the conveying direction; multiple sets of limiting edge-removing assemblies are provided, symmetrically arranged on both sides of the conveyor belt, each set of limiting edge-removing assemblies including a second drive cylinder, a rotating frame, a limiting plate, a limiting frame, a lifting frame, an edge-removing component, an edge-removing roller, an upper limiting plate, a guide rod, a lower limiting plate, and... The system includes: an elastic pusher; a horizontally movable limiting plate located at the upper end of the conveyor belt; a rotating frame with a scissor-like structure and four connecting ends, two of which are slidably connected to the limiting plate and the other two slidably connected to the inner wall of the pretreatment channel; a second drive cylinder located on the pretreatment channel, with its telescopic rod end slidably connected to the connecting end of the rotating frame; a limiting frame located on the side of the limiting plate near the conveyor belt; an upper and lower limiting plate vertically positioned on the limiting plate; a guide rod with its two ends connected to the upper and lower limiting plates; a lifting frame slidably positioned on the guide rod; an edge-removing component and a wrinkle-removing roller located at both ends of the lifting frame and on both sides of the limiting frame; and an elastic pusher located on the guide rod.

[0006] Preferably, the first mounting bracket has a U-shaped structure; the second rotating shaft is arranged parallel to its horizontal section; and the mounting plate is rotatably connected to its vertical section.

[0007] Preferably, the distance sensor is mounted on the vertical section of the first mounting bracket.

[0008] Preferably, the material handling mechanism further includes a lead screw and a fourth drive motor; a mounting groove is provided on the base; the lead screw, driven by the fourth drive motor, is rotatably mounted in the mounting groove; the bottom of the cylinder body of the first drive cylinder extends into the mounting groove and is threadedly connected to the lead screw.

[0009] Preferably, the lifting frame is an inverted U-shaped structure; the de-folding part is a horizontally placed L-shaped structure and is set on one vertical section of the lifting frame; the de-wrinkling roller is rotatably set on the other vertical section of the lifting frame and is provided with a heating layer on the outside.

[0010] Preferably, the elastic pusher is sleeved outside the guide rod, with the upper end connected to the upper limit plate and the lower end connected to the horizontal section of the lifting frame.

[0011] Preferably, the first cleaning component is a hair dryer, with dust filters installed on both its air inlet and outlet ends.

[0012] Preferably, the second cleaning component is an electrostatic precipitator.

[0013] Preferably, the compaction assembly includes a compaction roller, a second mounting frame, and a third drive cylinder; the second mounting frame, which moves up and down, is an inverted U-shaped structure, with its horizontal section located outside the pretreatment channel and its vertical section extending into the interior of the pretreatment channel; the compaction roller is positioned above the conveyor belt and is rotatably connected to the vertical sections of the second mounting frames on both sides; the third drive cylinder is positioned on the pretreatment channel, with its telescopic rod end connected to the second mounting frame.

[0014] Preferably, the paper conveying process of the above-mentioned fully automatic laser holographic printing machine with a paper conveying device is as follows: S1. Move the paper storage device to the feed end of the printing press; S2. Adjust the first drive cylinder and the fourth drive motor according to the height of the paper storage point so that the feed end of the conveyor belt is close to the paper storage point; the second drive motor drives the first mounting frame to rotate to a certain angle so that it is close to the paper storage point; the distance sensor detects the paper position, the third drive motor controls the second rotating shaft to rotate, further fine-tunes the position of the electric suction component so that its suction end contacts a specific position of the paper, and then reverses the operation to move the paper onto the conveyor belt. S3. The paper enters the pre-processing channel as the conveyor belt moves. S4. The scanner scans the size and thickness of the paper and transmits the scanning results to the controller; S5. The controller sends a signal to the second drive cylinder to control the limit plate to move toward the paper until the limit frame contacts the edge of the paper. At the same time, the de-folding part picks up the fold at the edge of the paper, and the de-crease roller heats and smooths the fold. S6. The first cleaning unit blows air onto the paper to remove large-volume dirt from the surface. S7. According to the paper thickness, the third drive cylinder adjusts the position of the second mounting frame so that the compaction roller is in close contact with the printing surface of the paper, pressing the whole and smoothing out the wrinkles. S8. Finally, the second cleaning step removes surface dust. S9. Pre-treatment is complete, and the paper enters the printing press body.

[0015] The above-described technical solution of the present invention has the following beneficial technical effects: This invention features a material handling mechanism that sequentially adjusts the position of the first mounting frame and the rotation angle of the second rotating shaft, enabling the electric suction component to accurately pick up the paper at a specific location and then transport it to that location. This improves the accuracy of paper transport and reduces the workload of subsequent pre-processing. A pre-processing mechanism is also included, in which a limiting and fold-removing component limits the paper for easier subsequent printing and removes folds and wrinkles, improving the printing effect.

[0016] This invention cleans paper using both wind-powered cleaning and electrostatic dust removal, resulting in excellent cleaning performance and facilitating subsequent printing.

[0017] The present invention is equipped with a compaction component, which adjusts the tightness of the contact between the compaction roller and the paper through a third drive cylinder, thereby achieving a better compression effect and a better effect in removing wrinkles.

[0018] This invention automates the paper feeding process using a controller, making it more automated and intelligent, saving manpower, and improving work efficiency. Attached Figure Description

[0019] Figure 1 This is a partial structural diagram of a fully automatic laser holographic printing machine with a paper conveying device proposed in this invention.

[0020] Figure 2 This is a cross-sectional view of the paper conveying device in a fully automatic laser holographic printing machine with a paper conveying device proposed in this invention.

[0021] Figure 3 This is a cross-sectional enlarged view of the pre-processing mechanism in a fully automatic laser holographic printing machine with a paper conveying device proposed in this invention.

[0022] Figure 4This is a partial cross-sectional view of the base of a fully automatic laser holographic printing machine with a paper conveying device proposed in this invention.

[0023] Figure 5 This is a side view of the second mounting frame in a fully automatic laser holographic printing machine with a paper conveying device proposed in this invention.

[0024] Figure 6 This is a schematic diagram showing the positional relationship between the limiting and folding edge removal component and the material transfer plate in a fully automatic laser holographic printing machine with a paper conveying device proposed in this invention.

[0025] Figure 7 This is an enlarged view of a limiting and folding edge removal component in a fully automatic laser holographic printing machine with a paper conveying device, as proposed in this invention.

[0026] Figure 8 This is a schematic diagram showing the positional relationship between the compaction component and the transfer plate in a fully automatic laser holographic printing machine with a paper conveying device proposed in this invention.

[0027] Figure labels: 1. Printing press body; 2. Paper conveying device; 3. Material feeding mechanism; 4. Material picking mechanism; 5. Pre-treatment mechanism; 6. Material conveyor belt; 7. First rotating shaft; 8. Mounting plate; 9. Base; 10. First drive cylinder; 11. Lead screw; 12. Fourth drive motor; 13. First mounting bracket; 14. Second drive motor; 15. Third drive motor; 16. Second rotating shaft; 17. Electric suction component; 18. Distance sensor ; 19. Pre-treatment channel; 20. Limiting and de-folding assembly; 21. First cleaning component; 22. Compacting component; 23. Second cleaning component; 24. Second drive cylinder; 25. Rotating frame; 26. Limiting plate; 27. Limiting frame; 28. Lifting frame; 29. ​​De-folding component; 30. De-wrinkling roller; 31. Upper limiting plate; 32. Guide rod; 33. Lower limiting plate; 34. Compacting roller; 35. Second mounting frame; 36. Third drive cylinder. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention. Example 1

[0029] like Figure 1-7As shown, the present invention proposes a fully automatic laser holographic printing machine with a paper conveying device, comprising a printing machine body 1, a controller, and a paper conveying device 2; the paper conveying device 2 includes a feeding mechanism 3, a picking mechanism 4, and a pre-treatment mechanism 5; the feeding mechanism 3 includes a first drive motor, a first rotating shaft 7, and a feeding belt 6; two sets of the first rotating shaft 7, driven by the first drive motor, are arranged in parallel, one set rotating outside the printing machine body 1, and the other rotating at the feed inlet of the printing machine body 1; the feeding belt 6 is fitted onto the two sets of first rotating shaft 7; the picking mechanism 4 is located at the feed end of the feeding belt 6; the pre-treatment mechanism 5 is located on the feeding belt 6 and between the picking mechanism 4 and the printing machine body 1; the controller and the paper conveying device 2 are communicatively connected; the picking mechanism... Component 4 includes a mounting plate 8, a base 9, a first drive cylinder 10, a first mounting bracket 13, a second drive motor 14, a third drive motor 15, a second rotating shaft 16, an electric adsorption component 17, and a distance sensor 18. The base 9 is positioned below the conveyor belt 6. Two sets of first drive cylinders 10 are provided, with each set positioned on one side of the conveyor belt 6 and the cylinder bodies slidably connected to the base 9. The mounting plates 8 correspond one-to-one with the first drive cylinders 10, with the opposite ends of the two sets of mounting plates 8 rotatably connected to the two ends of the first rotating shaft 7, and the bottom ends connected to the telescopic rods of the corresponding first drive cylinders 10. The first mounting bracket 13, driven by the second drive motor 14, spans the conveyor belt 6, and its two ends are rotatably connected to the mounting plates 8 on the corresponding sides. The third drive motor 16... The second rotating shaft 16 of the transmission is rotatably mounted on the first mounting frame 13; the electric adsorption component 17 is mounted on the second rotating shaft 16; the distance sensor 18 is mounted on the first mounting frame 13; the pre-processing mechanism 5 includes a pre-processing channel 19, a limiting and de-folding assembly 20, and a scanner; one end of the pre-processing channel 19 through which the conveyor section of the conveyor belt 6 passes is connected to the printing machine body 1; the scanner and the limiting and de-folding assembly 20 are sequentially arranged inside the pre-processing channel 19 according to the conveying direction; multiple sets of limiting and de-folding assemblies 20 are provided, and multiple sets of limiting and de-folding assemblies 20 are symmetrically arranged on both sides of the conveyor belt 6. Each set of limiting and de-folding assemblies 20 includes a second driving cylinder 24, a rotating frame 25, a limiting plate 26, a limiting frame 27, a lifting frame 28, a de-folding component 29, and a de-folding component. The system includes a crease roller 30, an upper limit plate 31, a guide rod 32, a lower limit plate 33, and an elastic pusher. A horizontally movable limit plate 26 is located at the upper end of the conveyor belt 6. A rotating frame 25 has a scissor-like structure with four connecting ends, two of which are slidably connected to the limit plate 26, and the other two are slidably connected to the inner wall of the pretreatment channel 19. A second drive cylinder 24 is mounted on the pretreatment channel 19, with its telescopic rod end slidably connected to the connecting end of the rotating frame 25. A limit frame 27 is located on the side of the limit plate 26 near the conveyor belt 6. The upper limit plate 31 and the lower limit plate 33 are vertically mounted on the limit plate 26. The guide rod is connected to the upper limit plate 31 and the lower limit plate 33 at both ends. A lifting frame 28 is slidably mounted on the guide rod 32.The de-folding component 29 and the de-wrinkling roller 30 are respectively disposed at both ends of the lifting frame 28, and simultaneously located on both sides of the limiting frame 27; the elastic pushing component is disposed on the guide rod 32.

[0030] In an optional embodiment, the first mounting bracket 13 has a U-shaped structure; the second rotating shaft 16 is arranged parallel to its horizontal section; and the mounting plate 8 is rotatably connected to its vertical section.

[0031] In an alternative embodiment, the distance sensor 18 is disposed on the vertical section of the first mounting bracket 13.

[0032] In an optional embodiment, the material handling mechanism 4 further includes a lead screw 11 and a fourth drive motor 12; a mounting groove is provided on the base 9; the lead screw 11, driven by the fourth drive motor 12, is rotatably disposed in the mounting groove; the bottom of the cylinder body of the first drive cylinder 10 extends into the mounting groove and is threadedly connected to the lead screw 11.

[0033] In an optional embodiment, the lifting frame 28 is an inverted U-shaped structure; the de-folding piece 29 is a horizontally placed L-shaped structure and is disposed on one vertical section of the lifting frame 28; the de-wrinkling roller 30 is rotatably disposed on the other vertical section of the lifting frame 28 and is provided with a heating layer on the outside.

[0034] In an optional embodiment, the elastic pusher is sleeved outside the guide rod 32, with its upper end connected to the upper limit plate 31 and its lower end connected to the horizontal section of the lifting frame 28.

[0035] The present invention provides a material handling mechanism 4, which adjusts the position of the first mounting frame 13 and the rotation angle of the second rotating shaft 16 in sequence, so that the electric adsorption component 17 can accurately adsorb the paper at a specific position and then transport it to the specific position, thereby improving the accuracy of paper transport and reducing the workload of subsequent pre-processing; and provides a pre-processing mechanism 5, in which the limiting and folding component 20 limits the paper on the one hand to facilitate subsequent printing, and removes folds and wrinkles on the other hand to improve the effect of subsequent printing. Example 2

[0036] The present invention proposes a fully automatic laser holographic printing machine with a paper conveying device. The pretreatment mechanism 5 further includes a first cleaning component 21 and a second cleaning component 23; the first cleaning component 21 and the second cleaning component 23 are disposed at the discharge end of the pretreatment channel 19.

[0037] In an optional embodiment, the first cleaning component 21 is a hair dryer, with dust filters provided on both its air inlet and outlet ends.

[0038] In an optional embodiment, the second cleaning component 23 is an electrostatic precipitator.

[0039] This invention cleans paper using both wind-powered cleaning and electrostatic dust removal, resulting in excellent cleaning performance and facilitating subsequent printing. Example 3

[0040] like Figure 8 As shown, the present invention proposes a fully automatic laser holographic printing machine with a paper conveying device. The pretreatment mechanism 5 further includes a compaction component 22. The compaction component 22 is disposed between the first cleaning component 21 and the second cleaning component 23, and includes a compaction roller 34, a second mounting frame 35, and a third drive cylinder 36. The second mounting frame 35, which moves up and down, has an inverted U-shaped structure, with its horizontal section located outside the pretreatment channel 19 and its vertical section extending into the interior of the pretreatment channel 19. The compaction roller 34 is disposed above the conveyor belt 6 and is rotatably connected to the vertical sections of the second mounting frames 35 on both sides. The third drive cylinder 36 is disposed on the pretreatment channel 19, and its telescopic rod end is connected to the second mounting frame 35.

[0041] The present invention provides a compaction component 22, which adjusts the tightness of the contact between the compaction roller 34 and the paper through the third drive cylinder 36, thereby achieving a better compression effect and a better effect in removing wrinkles. Example 4

[0042] This invention further proposes a paper feeding method for a fully automatic laser holographic printing machine with a paper feeding device, the method flow of which is as follows: S1. Move the paper storage device to the feed end of the printing press; S2. Adjust the first drive cylinder 10 and the fourth drive motor 12 according to the height of the paper storage point so that the feed end of the conveyor belt 6 is close to the paper storage point; the second drive motor 14 drives the first mounting frame 13 to rotate to a certain angle so that it is close to the paper storage point; the distance sensor 18 detects the paper position, the third drive motor 15 controls the second rotating shaft 16 to rotate, further fine-tuning the position of the electric suction component 17 so that its suction end contacts a specific position of the paper, and then reverses the operation to move the paper onto the conveyor belt 6. S3. As the conveyor belt 6 moves, the paper enters the pretreatment channel 19; S4. The scanner scans the size and thickness of the paper and transmits the scanning results to the controller; S5. The controller sends a signal to the second drive cylinder 24 to control the limit plate 26 to move toward the paper until the limit frame 27 contacts the edge of the paper. At the same time, the de-folding piece 29 picks open the fold at the edge of the paper, and the de-wrinkling roller 30 heats and smooths the fold. S6. The first cleaning component 21 blows air onto the paper to remove large-volume dirt from the surface. S7. According to the paper thickness, the third drive cylinder 36 adjusts the position of the second mounting bracket 35 so that the compaction roller 34 is in close contact with the printing surface of the paper, pressing the whole and smoothing out the wrinkles. S8. Finally, the second cleaning component 23 removes surface dust. S9. Pre-treatment completed, paper enters the printing press body 1.

[0043] The above method automatically completes the paper feeding process through a controller, making it more automated and intelligent, saving manpower and improving work efficiency.

[0044] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of the invention and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of the invention should be included within the protection scope of the invention. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A fully automatic laser holographic printing machine with a paper conveying device, characterized in that, The system includes a printing press body (1), a controller, and a paper conveying device (2). The paper conveying device (2) includes a material conveying mechanism (3), a material picking mechanism (4), and a pre-treatment mechanism (5). The material conveying mechanism (3) includes a first drive motor, a first rotating shaft (7), and a conveying belt (6). Two sets of the first rotating shaft (7) driven by the first drive motor are arranged in parallel. One set is rotatably located outside the printing press body (1), and the other set is rotatably located at the feed port of the printing press body (1). The conveying belt (6) is fitted on the two sets of first rotating shafts (7). The material picking mechanism (4) is located at the feed end of the conveying belt (6). The pre-treatment mechanism (5) is located on the conveying belt (6) and between the material picking mechanism (4) and the printing press body (1). The controller and the paper conveying device (2) are connected in communication. The material handling mechanism (4) includes a mounting plate (8), a base (9), a first drive cylinder (10), a first mounting bracket (13), a second drive motor (14), a third drive motor (15), a second rotating shaft (16), an electric suction component (17), and a distance sensor (18); the base (9) is located below the conveyor belt (6); two sets of first drive cylinders (10) are provided, and the two sets of first drive cylinders (10) are respectively located on both sides of the conveyor belt (6), and the cylinder bodies are slidably connected to the base (9); the mounting plate (8) corresponds one-to-one with the first drive cylinder (10). The two sets of mounting plates (8) are rotatably connected to the two ends of the first rotating shaft (7) at their opposite ends, and the bottom ends are connected to the telescopic rod of the corresponding first driving cylinder (10); the first mounting frame (13) driven by the second driving motor (14) spans the conveyor belt (6), and its two ends are rotatably connected to the mounting plates (8) on the corresponding sides; the second rotating shaft (16) driven by the third driving motor (15) is rotatably mounted on the first mounting frame (13); the electric adsorption component (17) is mounted on the second rotating shaft (16); the distance sensor (18) is mounted on the first mounting frame (13); The pre-processing mechanism (5) includes a pre-processing channel (19), a limiting and de-folding assembly (20), a first cleaning component (21), a compaction assembly (22), a second cleaning component (23), and a scanner; one end of the pre-processing channel (19) through which the conveyor section of the conveyor belt (6) passes is connected to the printing machine body (1); the scanner, the limiting and de-folding assembly (20), the first cleaning component (21), the compaction assembly (22), and the second cleaning component (23) are arranged sequentially inside the pre-processing channel (19) according to the conveying direction; Multiple sets of limiting and de-folding components (20) are provided, and the multiple sets of limiting and de-folding components (20) are symmetrically arranged on both sides of the conveyor belt (6). Each set of limiting and de-folding components (20) includes a second drive cylinder (24), a rotating frame (25), a limiting plate (26), a limiting frame (27), a lifting frame (28), a de-folding component (29), a de-folding roller (30), an upper limiting plate (31), a guide rod (32), a lower limiting plate (33), and an elastic pusher. The horizontally moving limiting plate (26) is located at the upper end of the conveyor belt (6). The rotating frame (25) has a scissor-shaped structure and four connecting ends are provided on the rotating frame (25). Two of the connecting ends are slidably connected to the limiting plate (26), and the other two connecting ends are slidably connected to the limiting plate (26). The inner wall of the pretreatment channel (19) is connected; the second drive cylinder (24) is set on the pretreatment channel (19), and its telescopic rod end is slidably connected to the connecting end of the rotating frame (25); the limiting frame (27) is set on the side of the limiting plate (26) near the conveyor belt (6); the upper limiting plate (31) and the lower limiting plate (33) are set on the limiting plate (26) in the vertical direction; the two ends of the guide rod are respectively connected to the upper limiting plate (31) and the lower limiting plate (33); the lifting frame (28) is slidably set on the guide rod (32); the de-folding part (29) and the de-wrinkling roller (30) are respectively set on the two ends of the lifting frame (28) and located on both sides of the limiting frame (27); the elastic pusher is set on the guide rod (32).

2. The fully automatic laser holographic printing machine with a paper conveying device according to claim 1, characterized in that, The first mounting bracket (13) has a U-shaped structure; the second rotating shaft (16) is set parallel to its horizontal section; the mounting plate (8) is rotatably connected to its vertical section.

3. A fully automatic laser holographic printing machine with a paper conveying device according to claim 2, characterized in that, The distance sensor (18) is mounted on the vertical section of the first mounting bracket (13).

4. A fully automatic laser holographic printing machine with a paper conveying device according to claim 1, characterized in that, The material handling mechanism (4) also includes a lead screw (11) and a fourth drive motor (12); a mounting groove is provided on the base (9); the lead screw (11) driven by the fourth drive motor (12) is rotatably mounted in the mounting groove; the bottom of the cylinder body of the first drive cylinder (10) extends into the mounting groove and is threadedly connected to the lead screw (11).

5. A fully automatic laser holographic printing machine with a paper conveying device according to claim 1, characterized in that, The lifting frame (28) is an inverted U-shaped structure; the de-folding part (29) is a horizontal L-shaped structure and is set on one side of the vertical section of the lifting frame (28); the de-wrinkling roller (30) is rotatably set on the other side of the vertical section of the lifting frame (28) and is provided with a heating layer on the outside.

6. A fully automatic laser holographic printing machine with a paper conveying device according to claim 5, characterized in that, The elastic pusher is sleeved outside the guide rod (32), and its upper end is connected to the upper limit plate (31), and its lower end is connected to the horizontal section of the lifting frame (28).

7. A fully automatic laser holographic printing machine with a paper conveying device according to claim 1, characterized in that, The first cleaning component (21) is a hair dryer, with dustproof nets installed on both its air inlet and outlet ends.

8. A fully automatic laser holographic printing machine with a paper conveying device according to claim 1, characterized in that, The second cleaning component (23) is an electrostatic precipitator.

9. A fully automatic laser holographic printing machine with a paper conveying device according to claim 1, characterized in that, The compaction assembly (22) includes a compaction roller (34), a second mounting frame (35), and a third drive cylinder (36). The second mounting frame (35), which moves up and down, is an inverted U-shaped structure. Its horizontal section is located outside the pretreatment channel (19), and its vertical section extends into the interior of the pretreatment channel (19). The compaction roller (34) is located above the conveyor belt (6) and is rotatably connected to the vertical sections of the second mounting frames (35) on both sides. The third drive cylinder (36) is located on the pretreatment channel (19), and its telescopic rod end is connected to the second mounting frame (35).

10. A fully automatic laser holographic printing machine with a paper conveying device according to any one of claims 1-9, characterized in that, The paper delivery process is as follows: S1. Move the paper storage device to the feed end of the printing press; S2. Adjust the first drive cylinder (10) and the fourth drive motor (12) according to the height of the paper storage point so that the feed end of the conveyor belt (6) is close to the paper storage point; the second drive motor (14) drives the first mounting frame (13) to rotate to a certain angle so that it is close to the paper storage point; the distance sensor (18) detects the paper position, the third drive motor (15) controls the second rotating shaft (16) to rotate, further fine-tuning the position of the electric adsorption component (17) so that its adsorption end contacts a specific position of the paper, and then reverses the operation to move the paper onto the conveyor belt (6); S3. As the conveyor belt (6) moves, the paper enters the pretreatment channel (19). S4. The scanner scans the size and thickness of the paper and transmits the scanning results to the controller; S5. The controller sends a signal to the second drive cylinder (24) to control the limit plate (26) to move toward the paper until the limit frame (27) contacts the edge of the paper. At the same time, the de-folding piece (29) lifts the fold at the edge of the paper, and the de-folding roller (30) heats and smooths the fold. S6. The first cleaning component (21) blows air onto the paper to remove large-volume dirt from the surface. S7. According to the paper thickness, the third drive cylinder (36) adjusts the position of the second mounting bracket (35) so that the compaction roller (34) is in close contact with the printing surface of the paper, presses the whole and smooths out the wrinkles. S8. Finally, the surface dust is removed by the second cleaning component (23). S9. Pre-processing is complete, and the paper enters the printing press body (1).

Images