A packaging box printing paper disease processing platform

Abstract

This utility model relates to the field of printed matter inspection technology, and in particular discloses a paper defect processing platform for packaging box printing. It includes a main frame, with a first and a second auxiliary frame arranged on both sides of the main frame. A unwinding roller is mounted on the first auxiliary frame, and a take-up roller is mounted on the second auxiliary frame. First roller shafts are mounted at both ends of the main frame. Vertical plates are mounted on the main frame, and a second roller shaft is positioned between the vertical plates. A table is mounted on the main frame, with a cutting assembly on the bottom surface of the table and a pressure plate on the table. This utility model uses the pressure plate to press the two sides of the defective parts of the printed matter firmly, achieving reliable positioning. The rising and moving of the cutting blade completes the cutting of the defective parts of the printed matter, achieving high cutting precision. The cut printed matter is then reassembled to ensure the integrity of the printed matter. An adjustment mechanism adjusts the distance between the second and first roller shafts to effectively limit and guide the printed matter, and it can adapt to the usage requirements of printed matter of different thicknesses.

Description

Technical Field

[0001] This utility model relates to the field of printed matter inspection technology, and in particular to a paper defect processing platform for printed packaging boxes. Background Technology

[0002] Packaging box printing is a type of packaging product made primarily of paper using color printing technology. It is widely used in the food, pharmaceutical, electronics, and cosmetic industries, serving both product protection and visual communication functions. During the printing process of roll-type packaging boxes, printing defects (i.e., paper defects) are often unavoidable due to factors such as production processes and the environment. These defects affect the appearance quality of the finished packaging box, necessitating the removal of these flawed parts. However, to ensure production continuity, identified paper defects are often marked first and then processed uniformly after production. Subsequent processing often involves manual cutting, which compromises cutting quality and reduces efficiency.

[0003] Therefore, it is necessary to propose an improved paper defect processing platform for printed packaging boxes to overcome the shortcomings of existing technologies. Utility Model Content

[0004] The purpose of this utility model is to solve the problems in the prior art and provide a platform for processing paper defects in printed packaging boxes.

[0005] The technical solution of this utility model is: A paper defect treatment platform for printed packaging boxes includes a main frame, with a first sub-frame and a second sub-frame respectively arranged on both sides of the main frame. The first sub-frame is equipped with an unwinding roller, and the second sub-frame is equipped with a take-up roller. A first roller shaft is arranged at both ends of the main frame. Symmetrically distributed vertical plates are arranged on the main frame, and a second roller shaft is arranged between the two vertical plates. A U-shaped groove is provided on the vertical plates. The second roller shaft can be adjusted up and down relative to the first roller shaft by an adjustment mechanism arranged in the U-shaped groove. A table is arranged on the main frame. A cutting component is arranged on the bottom surface of the table, and two symmetrically distributed pressure plates are arranged on the top surface of the table.

[0006] Preferably, the adjustment mechanism includes a slider, an adjustment screw, and a top plate. The slider is disposed in a U-shaped groove and slides in cooperation with the U-shaped groove. The top plate is disposed on the top of the vertical plate. The adjustment screw penetrates the top plate and is threadedly connected to the slider. A rotatable adjustment block is disposed on the top plate and is threadedly connected to the adjustment screw.

[0007] Preferably, a spring is fitted onto the adjusting screw between the top plate and the slider.

[0008] Preferably, the platform is provided with symmetrically distributed connecting seats, one end of the pressure plate is pivotally connected to the connecting seat, a torsion spring is provided between the pressure plate and the platform, and a buckle is provided between the other end of the pressure plate and the main frame.

[0009] Preferably, a flexible pressure strip is provided on the side wall of the pressure plate facing the table.

[0010] Preferably, the cutting assembly includes a fixed plate and a lifting plate. A lifting actuator is provided on the fixed plate, and the output end of the lifting actuator is connected to the lifting plate. The lifting plate is provided with dual drive motors and two sets of symmetrically distributed cutting blade mechanisms. The two sets of cutting blade mechanisms are connected by two drive shafts. The dual drive motors are driven by one of the drive shafts. Each set of cutting blade mechanisms includes two parallel mounting plates. Two synchronous pulleys are provided between the two mounting plates. The synchronous pulleys are fixedly connected to the drive shafts. A synchronous belt is wound between the two synchronous pulleys, and a cutting blade is fixed on the synchronous belt.

[0011] Preferably, the mounting plate is provided with a long slot, the cutting blade slides in the long slot, and the table is provided with a slide rail adapted to the cutting blade.

[0012] Preferably, a magnetic powder brake is installed on the first auxiliary frame via a fixed bracket, and the magnetic powder brake is connected to the unwinding roller drive. A torque controller is installed on the main frame, and the torque controller is electrically connected to the magnetic powder brake.

[0013] Preferably, a winding motor is installed on the main frame, and the winding motor is connected to the winding roller drive.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This invention utilizes the cooperation of unwinding and rewinding rollers to achieve the unwinding and rewinding of printed materials. A pressure plate presses down on both sides of the defective parts of the printed material, ensuring reliable positioning. The rising and moving of the cutting blade completes the cutting of the defective parts, achieving high cutting accuracy and efficiency. The cut printed materials are then reassembled to ensure their integrity. An adjustment mechanism adjusts the distance between the second and first roller shafts, effectively limiting and guiding the printed materials, and adapting to the requirements of printed materials of different thicknesses. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This utility model Figure 1 A magnified schematic diagram of the structure at point A; Figure 3 This utility model Figure 1 A magnified schematic diagram of the structure at point B; Figure 4 This is a schematic diagram of the cutting component structure of this utility model.

[0016] The components are as follows: 1. Main frame; 2. First auxiliary frame; 3. Second auxiliary frame; 4. Unwinding roller; 5. Rewinding roller; 6. First roller shaft; 7. Vertical plate; 8. Second roller shaft; 9. U-shaped chute; 10. Platform; 11. Pressure plate; 12. Slider; 13. Adjusting screw; 14. Top plate; 15. Adjusting block; 16. Spring; 17. Connecting seat; 18. Torsion spring; 19. Fastener; 20. Flexible pressure strip; 21. Fixed plate; 22. Lifting plate; 23. Lifting actuator; 24. Dual drive motor; 25. Mounting plate; 26. Drive shaft; 27. Synchronous pulley; 28. Synchronous belt; 29. ​​Cutting knife; 30. Long slot; 31. Fixed bracket; 32. Magnetic powder brake; 33. Torque controller; 34. Rewinding motor; 35. Driving wheel; 36. Driven wheel; 37. Slide. Detailed Implementation

[0017] To make the technical means, technical features, utility model purpose and technical effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.

[0018] like Figures 1-4 As shown, a packaging box printing defect processing platform includes a main frame 1. A first auxiliary frame 2 and a second auxiliary frame 3 are integrally machined on both sides of the main frame 1 along its length. An unwinding roller 4 is mounted on the first auxiliary frame 2 via bearing seats. Printed packaging boxes are mounted on the unwinding roller 4 and unwound sequentially. A take-up roller 5 is mounted on the second auxiliary frame 3 via bearing seats. After the printing defects are processed, the printed materials are rewound on the take-up roller 5. First roller shafts 6 are mounted at both ends of the top surface of the main frame 1. The first roller shafts 6 can rotate relative to the main frame 1. A second roller 8 is installed on the frame 1 above the first roller 6. The second roller 8 can be adjusted up and down relative to the first roller 6. The distance between the first roller 6 and the second roller 8 is adjusted according to the thickness of the printed matter. The printed matter passes between the first roller 6 and the second roller 8, which restricts and guides the printed matter. A table plate 10 is installed on the main frame 1. Two pressure plates 11 are connected to the top surface of the table plate 10. The two pressure plates 11 are symmetrically distributed and used to press the printed matter. A cutting component is installed on the bottom surface of the table plate 10 for cutting the defective parts of the printed matter.

[0019] like Figures 1-3As shown, at the four corners of the top of the main frame 1, there are two symmetrically distributed upright plates 7. U-shaped grooves 9 are machined on the upright plates 7, and an adjustment mechanism is installed within the U-shaped grooves 9. Both ends of the second roller shaft 8 are connected to the adjustment mechanism, which adjusts the vertical distance between the second roller shaft 8 and the first roller shaft 6. The adjustment mechanism includes a slider 12, an adjusting screw 13, and a top plate 14. The slider 12 is installed within the U-shaped groove 9, and there is a sliding fit between the slider 12 and the U-shaped groove 9. Both ends of the second roller shaft 8 are connected to the sliders 12 on both sides. The second roller shaft 8 and the sliders 12 are connected by bearings, allowing the second roller shaft 8 to rotate relative to the sliders 12. The top plate 14 is located at the top of the upright plates 7 and is bolted to the upright plates 7. The adjusting screw 13 penetrates the top plate 14 and is threaded onto the slider 12. After connection, it forms a... To prevent loosening between the adjusting screw 13 and the slider 12, a nut is installed on the adjusting screw 13. The nut is tightened against the slider 12 to lock the connection between the adjusting screw 13 and the slider 12. A rotatable adjusting block 15 is installed on the top plate 14. The adjusting block 15 is threadedly connected to the adjusting screw 13. Through the rotation of the adjusting block 15 and the threaded connection between the adjusting block 15 and the adjusting screw 13, the adjusting screw 13 drives the slider 12 to move within the U-shaped groove 9, thereby adjusting the position of the second roller shaft 8. A spring 16 is fitted on the adjusting screw 13 between the top plate 14 and the slider 12. One end of the spring 16 abuts against the top plate 14, and the other end of the spring 16 abuts against the nut above the slider 12. The spring 16 is always in a compressed and energy-storing state, maintaining a downward pushing force on the slider 12.

[0020] like Figure 1 and Figure 3 As shown, two connecting seats 17 are connected to one side of the platform 10. The two connecting seats 17 are symmetrically distributed. One end of the pressure plate 11 is pivotally connected to the connecting seat 17 via a pin. A torsion spring 18 is fitted on the pin. The torsion spring 18 connects the pressure plate 11 and the platform 10. That is, one torsion foot of the torsion spring 18 presses against the pressure plate 11, and the other torsion foot of the torsion spring 18 presses against the platform 10. The torsion spring 18 can drive the pressure plate 11 to rotate away from the platform 10 around its hinge point with the connecting seat 17. The other end of the pressure plate 11 is connected to... A latch 19 is installed between the main frame 1. The pressure plate 11 can be rotated to overcome the force of the torsion spring 18 and rotate towards the table plate 10. The latch 19 is used to fix the pressure plate 11 to the table plate 10 to press the printed matter on the table plate 10. A flexible pressure strip 20 is installed on the side wall of the pressure plate 11 facing the table plate 10. When pressing, the flexible pressure strip 20 contacts the surface of the printed matter. The flexible pressure strip 20 can deform to ensure reliable pressing of the printed matter and avoid scratching the surface of the printed matter.

[0021] like Figure 4As shown, the cutting assembly includes a fixed plate 21 and a lifting plate 22. The fixed plate 21 is connected to the main frame 1. A lifting actuator 23 is mounted on the fixed plate 21, and the output end of the lifting actuator 23 is connected to the lifting plate 22. A dual drive motor 24 and a cutting mechanism are mounted on the lifting plate 22. There are two sets of cutting mechanisms, which are symmetrically distributed on both sides of the lifting plate 22. The two sets of cutting mechanisms are connected by two drive shafts 26 to achieve synchronous operation. The dual drive motor 24 is connected to one of the drive shafts 26. The cutting mechanism includes two parallel mounting plates 25. The two drive shafts 26 penetrate and are connected to both ends of the mounting plates 25. A synchronous pulley 27 is fixedly connected to the drive shaft 26 between the two mounting plates 25. A synchronous belt 28 is wound between the two synchronous pulleys 27. A cutting blade 29 is fixed on the synchronous belt 28. The dual drive motor 24 is connected by two drive shafts 26 to the lifting plate 22. The drive shaft 26 connected to it drives two synchronous pulleys 27 to rotate, thereby driving the cutting blade 29 on the synchronous belt 28 to move. The mounting plate 25 has a long slot 30, and the cutting blade 29 slides in the long slot 30. The long slot 30 limits and guides the movement of the cutting blade 29, ensuring the stability of the movement of the cutting blade 29 and avoiding shaking during the cutting of printed materials, which would result in poor cutting quality. Two through slides 37 are processed on the table 10. The slides 37 are adapted to the cutting blade 29. When the lifting actuator 23 drives the lifting plate 22 to rise, the cutting blade 29 passes through the slides 37 and extends to the top of the table 10. The cutting blade 29 moves along the slides 37 to complete the cutting of the printed materials. In order to ensure the stability of the lifting plate 22, guide shafts are installed on the fixed plate 21 and located on both sides of the lifting actuator 23. The guide shafts penetrate the fixed plate 21 and are connected to the lifting plate 22.

[0022] like Figure 1 As shown, a fixed bracket 31 is installed on the first auxiliary frame 2, and a magnetic powder brake 32 is installed on the fixed bracket 31. The magnetic powder brake 32 is coaxially connected to the unwinding roller 4 to control the unwinding tension of the unwinding roller 4 and the braking during unwinding to prevent the printed matter from deforming or breaking. A torque controller 33 is installed on the main frame 1. The torque controller 33 is electrically connected to the magnetic powder brake 32, and the magnetic powder brake 32 is set and controlled by the torque controller 33.

[0023] like Figure 1 As shown, a winding motor 34 is installed on the main frame 1. The winding motor 34 is connected to the winding roller 5. Specifically, a drive wheel 35 is fixedly installed on the output shaft of the winding motor 34, and a driven wheel 36 is coaxially installed on the winding roller 5. The drive wheel 35 and the driven wheel 36 are connected by belt drive. The winding motor 34 drives the winding roller 5 to rotate, thereby winding up the processed printed matter. The winding motor 34 is linked with the magnetic powder brake 32.

[0024] The working principle of this utility model is as follows: The printed packaging box is mounted on the unwinding roller 4, and the ends of the printed material are wrapped around the two first roller shafts 6 and then wound onto the take-up roller 5. The adjustment mechanism adjusts the two second roller shafts 8, adjusting the distance between the second roller shafts 8 and the first roller shafts 6 according to the thickness of the printed material, so that the printed material passes between the first roller shafts 6 and the second roller shafts 8, ensuring that the printed material is laid flat on the table plate 10. The take-up motor 34 is started to drive the take-up roller 5 to rotate. The unwinding roller 4 unwinds the printed material and then winds it onto the take-up roller 5. During unwinding, the unwinding tension is controlled by the magnetic powder brake 32. When the paper defect position on the printed material is unwound to the two slides 37 on the table plate 10, the take-up motor 34 stops, the magnetic powder brake 32 brakes, and the printed material stops moving. The pressure plate 11 is manually operated to rotate against the force of the torsion spring 18, so that the flexible pressure strip 20 on the pressure plate 11 presses against the printed material. After pressing, the position of the pressure plate 11 is fixed by the buckle 19 to achieve reliable pressing of the printed material. Start the lifting actuator 23, which drives the lifting plate 22 to rise. The cutting blade 29 extends from the slide rail 37 to above the table plate 10. The dual drive motor 24 is activated, and the two cutting blades 29 move along the slide rail 37 via the synchronous belt 28. During the movement, the pressed printed material is cut to remove the paper defects. After cutting, the pressure plate 11 on the unwinding roller 4 is released, and the printed material on that side is pulled to move and align with the printed material on the winding roller 5. The aligning point is then sealed with tape. The pressure plate 11 on the winding roller 5 is released, and the winding motor 34 is restarted to achieve continuous unwinding and winding of the printed material until the next paper defect is located on the printed material.

[0025] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. All equivalent changes and modifications made in accordance with the scope of the claims of this utility model should fall within the technical scope of this utility model.

Claims

1. A carton print paper defect handling platform, characterized by, The main frame includes a main frame (1), on which a first auxiliary frame (2) and a second auxiliary frame (3) are respectively provided on both sides. The first auxiliary frame (2) is provided with a unwinding roller (4), and the second auxiliary frame (3) is provided with a winding roller (5). The main frame (1) is provided with a first roller shaft (6) at both ends. The main frame (1) is provided with symmetrically distributed upright plates (7). A second roller shaft (8) is provided between the two upright plates (7). The upright plates (7) are provided with a U-shaped groove (9). The second roller shaft (8) is adjusted up and down relative to the first roller shaft (6) by an adjustment mechanism provided in the U-shaped groove (9). The main frame (1) is provided with a table (10). The bottom surface of the table (10) is provided with a cutting component. The top surface of the table (10) is provided with two symmetrically distributed pressure plates (11).

2. The carton print paper handling platform of claim 1, wherein: The adjustment mechanism includes a slider (12), an adjusting screw (13), and a top plate (14). The slider (12) is disposed in a U-shaped groove (9) and slides in cooperation with the U-shaped groove (9). The top plate (14) is disposed on the top of the upright plate (7). The adjusting screw (13) penetrates the top plate (14) and is threadedly connected to the slider (12). A rotatable adjusting block (15) is disposed on the top plate (14) and is threadedly connected to the adjusting screw (13).

3. The carton print paper handling platform of claim 2, wherein: A spring (16) is fitted on the adjusting screw (13) between the top plate (14) and the slider (12).

4. The carton print paper handling platform of claim 2, wherein: The platform (10) is provided with symmetrically distributed connecting seats (17), one end of the pressure plate (11) is pivotally connected to the connecting seat (17), a torsion spring (18) is provided between the pressure plate (11) and the platform (10), and a buckle (19) is provided between the other end of the pressure plate (11) and the main frame (1).

5. The carton print paper handling platform of claim 1, wherein: The pressure plate (11) has a flexible pressure strip (20) on its side wall facing the table (10).

6. The carton print paper handling platform of claim 1, wherein: The cutting assembly includes a fixed plate (21) and a lifting plate (22). A lifting actuator (23) is provided on the fixed plate (21). The output end of the lifting actuator (23) is connected to the lifting plate (22). A dual drive motor (24) and two sets of symmetrically distributed cutting blade mechanisms are provided on the lifting plate (22). The two sets of cutting blade mechanisms are connected by two drive shafts (26). The dual drive motor (24) is driven by one of the drive shafts (26). Each set of cutting blade mechanisms includes two parallel mounting plates (25). Two synchronous pulleys (27) are provided between the two mounting plates (25). The synchronous pulleys (27) are fixedly connected to the drive shafts (26). A synchronous belt (28) is wound between the two synchronous pulleys (27). A cutting blade (29) is fixed on the synchronous belt (28).

7. The carton print paper handling platform of claim 6, wherein: The mounting plate (25) is provided with a long slot (30), the cutting blade (29) slides in the long slot (30), and the table plate (10) is provided with a slide (37) adapted to the cutting blade (29).

8. The carton print paper handling platform of claim 1, wherein: A magnetic powder brake (32) is installed on the first auxiliary frame (2) via a fixed bracket (31). The magnetic powder brake (32) is connected to the unwinding roller (4) via a transmission. A torque controller (33) is installed on the main frame (1). The torque controller (33) is electrically connected to the magnetic powder brake (32).

9. The carton print paper handling platform of claim 1, wherein: The main frame (1) is equipped with a winding motor (34), which is connected to the winding roller (5) for transmission.

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