Environment-friendly corrugated paperboard packaging printing machine

Abstract

This application relates to an environmentally friendly corrugated cardboard packaging printing machine, belonging to the technical field of printing equipment. It includes a worktable with a main conveyor belt horizontally positioned on it. A machine box, a frame, and a collection table are arranged sequentially according to the conveying direction of the corrugated paper. A printing shaft and an auxiliary pressure roller are rotatably connected inside the machine box. A storage box is mounted on the machine box, and a limit groove is slidably connected to the storage box. A traction roller and an auxiliary roller are rotatably connected to the bottom of the limit groove, pulling the printing plate vertically downwards. A first guide roller is slidably connected to the bottom of the storage box. A monitoring camera is slidably connected to the frame, and a push plate is slidably connected to the bottom of the frame. A collection table is located in front of the push plate, and a cutter assembly for cutting defective printed products is mounted on the collection table. This application has the advantages of automatic printing plate replacement, saving labor costs, improving printing pass rate, and being energy-saving and environmentally friendly.

Description

Technical Field

[0001] This application relates to the technical field of printing equipment, and in particular to an environmentally friendly corrugated cardboard packaging printing machine. Background Technology

[0002] Currently, corrugated cardboard is processed into corrugated boxes through processes such as die-cutting, creasing, nailing, or gluing. This is a widely used packaging product, and its usage has always ranked among the top of various packaging products. Corrugated boxes have gradually replaced wooden boxes and other transport packaging containers due to their superior performance and good processing performance, becoming the main force in transport packaging. In addition to protecting goods and facilitating warehousing and transportation, corrugated boxes also play a role in beautifying and promoting goods.

[0003] Modern printing presses generally consist of plate mounting, inking, printing, and paper feeding mechanisms, including folding mechanisms. Their 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 with text and images on the printing plate by hand or by the printing press. The ink is then transferred directly or indirectly to paper or other substrates, such as textiles, metal plates, plastics, leather, wood, glass, and ceramics, thereby reproducing a printed product identical to the printing plate.

[0004] When changing printing plates, existing printing presses require manual removal of the old printing plate, installation of the new printing plate on the printing shaft, and manual support to wind the printing plate onto the shaft. This process is not only time-consuming and labor-intensive, but also prone to causing printing discontinuity due to the intermittent nature of printing plate changes. Consequently, the first sheet of paper printed becomes waste paper, resulting in material waste and hindering energy conservation and environmental protection. Summary of the Invention

[0005] In order to achieve automatic plate changing, save labor costs, improve printing pass rate, and save energy and protect the environment, this application provides an environmentally friendly corrugated cardboard packaging printing machine.

[0006] This application provides an environmentally friendly corrugated cardboard packaging printing machine using the following technical solution:

[0007] An environmentally friendly corrugated cardboard packaging printing machine includes a worktable and a machine housing, which is fixedly connected to the worktable. A printing shaft is rotatably connected to the machine housing, with its rotation axis perpendicular to the conveying direction of the corrugated paper and horizontally positioned. An inlet and an outlet are respectively opened on two sides of the machine housing parallel to the printing shaft. A storage box is fixed to the machine housing, with its height higher than the inlet. The storage box has multiple parallel storage slots, each with a missing bottom. Limit grooves are symmetrically arranged on two sides of the storage slots perpendicular to the machine housing. Each limiting groove moves in a direction that approaches or moves away from each other. A drive component for driving the printing plate downward is provided in the storage slot. A first guide roller is slidably connected to the machine housing. The first guide roller is located below the storage box and is arranged in a direction parallel to the feed inlet. The sliding direction of the first guide roller is along the direction that approaches or moves away from the printing shaft. A second guide roller is rotatably connected inside the machine housing. The second guide roller is located between the side wall of the machine housing and the printing shaft and is tangent to the printing shaft. The rotation axis of the second guide roller is along the direction parallel to the printing shaft. A latch for locking the printing plate is fixed on the printing shaft.

[0008] By adopting the above technical solution, the printing plates that need to be installed sequentially are placed in the storage slot of the storage box in order. Two sets of limiting slots are close to each other to limit and fix the printing plates. When the printing plate needs to be replaced, the printing shaft is started to rotate. The latch first releases the limiting position on one side of the original printing plate. The original printing plate gradually slides out from the feed port as the printing shaft rotates. After it is completely removed, the latch releases the fixing position on the other side of the original printing plate. At this time, the new printing plate in the storage box gradually moves downward under the driving action of the drive component. When the new printing plate comes into contact with the first guide roller, it is conveyed and pushed towards the printing shaft by the first guide roller. At the same time, the second guide roller moves downward and, together with the first guide roller, presses the new printing plate against it and pushes it towards the circumference of the printing shaft. After one side of the printing plate is limited by the latch, the printing shaft rotates and gradually puts the printing plate completely against the printing shaft. Then the latch completely limits and fixes the printing plate. This can reduce the time and effort consumed by manually changing printing plates, reduce jamming and energy waste caused by changing printing plates, and achieve the purpose of high efficiency and environmental protection.

[0009] Optionally, the drive assembly includes a traction roller and an auxiliary roller, both of which are arranged parallel to the printing plate and respectively positioned on both sides of the printing plate, abutting against each other. The traction roller and the auxiliary roller are rotatably connected relative to the storage box, and the rotation axis is parallel to the direction of movement of the printing plate.

[0010] By adopting the above technical solution, when it is necessary to replace the printing plate, the traction wheel is activated to rotate relative to the storage box. Since the actual printing plate is generally made of aluminum, with a large area and thinness, the traction roller and the auxiliary roller rotate against each other, which can give the printing plate a traction force. The limiting groove gradually releases the limiting of the printing plate, so that the printing plate can gradually move downward.

[0011] Optionally, a first lead screw assembly is provided between the limiting groove and the storage box. The first lead screw assembly includes a bushing and a one-way screw. The bushing is rotatably connected to the storage box, and the one-way screw is threadedly connected to the bushing. The end of the one-way screw away from the bushing is fixed to the limiting groove. A telescopic rod for guiding the limiting groove is also provided between the limiting groove and the side wall of the storage box.

[0012] By adopting the above technical solution, the bushing rotates and is threadedly connected to the one-way screw. Under the guidance of the telescopic rod, the one-way screw drives the limiting groove to move back and forth along the length of the telescopic rod.

[0013] Optionally, a base plate is slidably connected to the bottom of the storage slot, and the sliding direction of the base plate is along the direction of approaching or moving away from the feed inlet of the machine.

[0014] By adopting the above technical solution, the bottom of the storage slot is closed before the printing plate is replaced. This not only prevents the printing plate from falling, but also reduces the damage to the printing plate caused by dust and debris. When the printing plate needs to be replaced, only the bottom plate needs to be opened.

[0015] Optionally, the first guide roller includes a bracket and a first pressure roller. A sliding groove is fixed on the side wall of the machine housing. The bracket itself is arranged parallel to the printing shaft and slides in the sliding groove. The first pressure roller is looped on the bracket and rotatably connected to the bracket.

[0016] By adopting the above technical solution, when the first pressure roller contacts the printing plate and guides the printing plate toward the printing shaft, the first pressure roller rotates relative to the support, that is, the first pressure roller rotates and is conveyed in contact with the printing plate. This not only improves the conveying efficiency of the printing plate, but also minimizes the damage to the surface of the printing plate caused by the first pressure roller.

[0017] Optionally, an auxiliary pressure roller is rotatably connected to the machine housing. The auxiliary pressure roller is arranged parallel to the printing shaft, and the outer wall of the auxiliary pressure roller abuts against the printing shaft.

[0018] By adopting the above technical solution, the printing plate passes between the printing shaft and the auxiliary pressure roller during the process of winding or detaching from the printing shaft, and relies on the pressure of the auxiliary pressure roller on the printing shaft. This makes the printing plate more tightly wound relative to the printing shaft and also prevents the printing plate from falling off the printing shaft.

[0019] Optionally, a monitoring camera is slidably connected to the workbench. The sliding direction of the monitoring camera is perpendicular to the corrugated paper conveying direction. The monitoring camera is located at the front of the machine housing. A push plate is slidably connected below the monitoring camera. The push plate is vertically set and abuts against the workbench. The sliding direction of the push plate is perpendicular to the corrugated paper conveying direction and is horizontally set.

[0020] By adopting the above technical solution, after the printing plate is replaced, the printed paper is conveyed to the area below the monitoring camera. The monitoring camera especially inspects the first printed product. If it is a defective product, the pusher will push the paper to the production line away from the corrugated paper conveyor for recycling. This can reduce defective products in printing and improve printing quality.

[0021] Optionally, a recycling platform is provided on the workbench, a recycling frame is provided at the bottom of the recycling platform, and a cutting blade assembly is slidably connected above the recycling platform. The cutting blade assembly includes multiple cutting blades fixed side by side. The sliding direction of the cutting blade assembly is to slide back and forth in the vertical direction. A blade groove adapted to the cutting blade assembly is provided on the recycling platform.

[0022] By adopting the above technical solution, the corrugated paper pushed to the recycling table by the push plate is placed on the knife groove. Multiple cutters of the cutting group cut the corrugated paper at the same time, so that the corrugated paper is cut into multiple relatively small pieces of paper and falls into the recycling box for recycling. This can reduce the time and manpower consumption for manual inspection and recycling, and achieve the purpose of automation, high efficiency and environmental protection.

[0023] Optionally, push plates are slidably connected to both sides of the recycling platform parallel to the direction of the cutter group, and the two push plates slide in the direction of moving closer to or further away from each other.

[0024] By adopting the above technical solution, when the cutting blade assembly cuts corrugated paper printed materials, if the printed materials are not completely cut in one go or do not fall completely into the recycling bin, the two push plates will push the remaining printed materials directly under the cutting blade assembly for multiple cuts until the remaining printed materials fall completely into the recycling bin. Or, when encountering large printed materials, the push plates on both sides first squeeze and fix the sides of the printed materials, and after cutting, push the remaining printed materials directly under the cutting blade assembly for multiple cuts until they are completely cut. This can increase cutting efficiency and enhance the green and environmentally friendly effect.

[0025] Optionally, a second lead screw assembly is provided on the recycling platform. The second lead screw assembly includes a bidirectional screw. A shield is fixed on the recycling platform. The bidirectional screw is rotatably connected to the recycling platform in a direction perpendicular to the cutter assembly. Two push plates pass through the shield and are threadedly connected to the bidirectional screw respectively. The two push plates are symmetrically arranged along the central axis of the bidirectional screw.

[0026] By adopting the above technical solution, the bidirectional screw rotates, and the two push plates tend to rotate relative to the bidirectional screw. Under the limiting action of the shielding canopy, the two push plates can only move in a straight line in the direction of approaching or moving away from each other.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. Place the multiple printing plates that need to be replaced into the limiting slots of the storage compartment of the storage box. When the printing plate needs to be replaced, the traction roller and the auxiliary roller drive the printing plate to move downwards gradually. Under the traction of the first guide roller and the second guide roller, the printing plate approaches and wraps around the printing shaft, thus achieving the effect of automatic printing plate replacement and achieving the purpose of energy saving and environmental protection.

[0029] 2. After the printed corrugated paper products fail the inspection by the monitoring camera, the pusher plate pushes them to the recycling table, where the cutter group cuts them into relatively small pieces of paper that fall into the recycling box for collection. This not only improves the pass rate of printed products but also reduces the cost of manual screening, thus achieving high efficiency and energy saving. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0031] Figure 2 This is a schematic diagram of the display chassis structure;

[0032] Figure 3 This is a schematic diagram of the cross-sectional structure of the display chassis;

[0033] Figure 4 This is a schematic diagram showing the cross-sectional structure of the first lead screw assembly;

[0034] Figure 5 This is a schematic diagram showing the structure of the tool groove.

[0035] In the diagram, 1. Workbench; 11. Main conveyor belt; 2. Chassis; 21. Feed inlet; 22. Discharge outlet; 23. Sliding door; 231. First cylinder; 24. Base plate; 241. Connecting rod; 242. Second cylinder; 25. Slide groove; 3. Printing shaft; 31. Clamp; 32. Auxiliary pressure roller; 4. Storage box; 41. Storage slot; 411. Limiting slot; 42. Drive assembly; 421. Traction roller; 422. Auxiliary roller; 423. First motor; 5. First lead screw assembly; 51. Bushing; 52. One-way screw; 53. Second motor; 54. Telescopic rod; 6. 61. First guide roller; 62. Support; 63. Slider; 64. First pressure roller; 75. Second pressure roller; 86. Third cylinder; 77. Frame; 78. Electric slide rail; 79. Monitoring camera; 70. Push plate; 71. Fourth cylinder; 80. Recycling platform; 81. Shelter; 81. Perforation; 82. Cutting assembly; 82. Cutting blade; 82. Fifth cylinder; 83. Cutting groove; 83. Leakage hole; 84. Recycling frame; 85. Push plate; 86. Second lead screw assembly; 86. Bidirectional screw; 862. Third motor; 9. Collection platform; 97. Guide plate. Detailed Implementation

[0036] The following is in conjunction with the appendix Figures 1-5This application will be described in further detail.

[0037] This application discloses an environmentally friendly corrugated cardboard packaging printing machine.

[0038] refer to Figure 1 An environmentally friendly corrugated cardboard packaging printing machine includes a workbench 1, on which a main conveyor belt 11 is horizontally arranged. A machine box 2 and a frame 7 are fixed on the workbench 1 according to the conveying direction of the main conveyor belt 11. A collection table 9 is fixed adjacent to the workbench 1 in front of the frame 7. The height of the collection table 9 is lower than that of the workbench 1. A guide plate 91 is fixed between the collection table 9 and the workbench 1. The guide plate 91 is smoothly connected to the main conveyor belt 11 and is used to collect the printed corrugated paper products on the collection table 9, reducing mess and manual collection. The printing in the machine box 2 uses environmentally friendly water-based inks. There is no pollution, waste gas and wastewater in the production process, which is in line with the original intention of green environmental protection.

[0039] refer to Figure 1 and Figure 2 The machine housing 2 has an inlet 21 and an outlet 22 at the rear and front of the main conveyor belt 11, respectively. A storage box 4 is fixed on the side wall of the machine housing 2 and is located directly above the inlet 21. An printing shaft 3 is rotatably connected inside the machine housing 2. The rotation axis of the printing shaft 3 is perpendicular to the conveying direction of the corrugated paper and is set horizontally. An auxiliary pressure roller 32 is arranged parallel to the side of the printing shaft 3 away from the inlet 21. The auxiliary pressure roller 32 is rotatably connected to the machine housing 2 and abuts against the printing shaft 3. A sliding door 23 is slidably connected to the machine housing 2 at a position parallel to the inlet 21. Two first cylinders 231 are fixed on the machine housing 2 and are arranged symmetrically along the central axis of the sliding door 23. The movable end of the first cylinder 231 is fixedly connected to the sliding door 23. The first cylinder 231 drives the sliding door 23 to slide back and forth in the vertical direction.

[0040] refer to Figure 2 , Figure 3 and Figure 4The storage box 4 has two parallel storage slots 41, with the bottom of each slot missing. A base plate 24 is provided at the bottom of the storage box 4. A second cylinder 242 is fixed to the side wall of the storage box 4. A connecting rod 241 is fixedly connected to the movable end of the second cylinder 242. The end of the connecting rod 241 away from the second cylinder 242 is fixedly connected to the base plate 24. The second cylinder 242 drives the base plate 24 to move towards or away from the printing shaft 3. Limiting grooves 411 are symmetrically provided on two sides of the storage slots 41 perpendicular to the machine housing 2. The limiting grooves 411 are U-shaped. A first lead screw assembly 5 is provided between the limiting grooves 411 and the storage box 4. A useful... The driving assembly 42 that drives the printing plate to move downward includes a traction roller 421, an auxiliary roller 422, and a first motor 423. The traction roller 421 and the auxiliary roller 422 are both arranged parallel to the printing plate and are respectively arranged on both sides of the printing plate and abut against each other. The first motor 423 is fixedly connected to the storage box 4, and the motor shaft of the first motor 423 is fixedly connected to the traction wheel. The first motor 423 drives the traction wheel to rotate relative to the storage box 4, and the auxiliary wheel rotates driven by it. The traction wheel is arranged on the side of the printing plate without the printed pattern. In this way, the printing plate can not only be driven to move vertically downward by traction, but also damage to the printed pattern on the printing plate can be minimized.

[0041] The first lead screw assembly 5 includes a bushing 51, a one-way screw 52, ​​and a second motor 53. The second motor 53 is fixedly connected to the storage box 4. The motor shaft of the second motor 53 is fixedly connected to the bushing 51. The bushing 51 has a threaded groove. The one-way screw 52 is set in the threaded groove and threadedly connected to the bushing 51. The end of the one-way screw 52 away from the bushing 51 is fixed to the limiting groove 411. The single limiting groove 411 is set vertically, and the actual setting length matches the actual printing plate length. A telescopic rod 54 is set directly below the first lead screw assembly 5. The telescopic rod 54 is set parallel to the one-way screw 52. One end of the telescopic rod 54 is fixed to the storage box 4, and the other end is fixed to the limiting groove 411. Therefore, when the one-way screw 52 rotates threadedly relative to the bushing 51, the limiting groove 411 will move in a direction that is closer or farther away from each other under the guiding and limiting action of the telescopic rod 54.

[0042] A first guide roller 6 is installed below the storage box 4, and the first guide roller 6 is arranged in a direction parallel to the feed inlet 21. An arc-shaped groove 25 is fixed on the side wall of the machine housing 2. The first guide roller 6 includes a bracket 61 and a first pressure roller 62. The first pressure roller 62 is sleeved on the bracket 61 and arranged in a direction parallel to the feed inlet 21. A slider 611 is fixed at the end of the bracket 61 away from the first pressure roller 62. The slider 611 slides in the groove 25. A third cylinder 64 is installed on the side wall of the machine housing 2. The third cylinder 64 rotates with damping relative to the machine housing 2. The movable end of the third cylinder 64 is fixedly connected to the bracket 61. The first guide roller 6 moves in a direction close to or away from the feed inlet 21 under the driving action of the third cylinder 64. A second guide roller is rotatably connected inside the machine housing 2. The rotation axis is parallel to the direction of the printing shaft 3. The second guide roller is set between the side wall of the machine housing 2 and the printing shaft 3 and is tangent to the printing shaft 3. When the printing plate falls, it contacts the first guide roller 6 and, under the traction of the first guide roller 6, gradually passes through the feed port 21 and approaches the printing shaft 3. Since the printing plate is generally made of aluminum, it has a large area and is thin, and has a certain degree of flexibility. Two bolts 31 are fixed radially symmetrically on the printing shaft 3. The bolts 31 are L-shaped. After one end of the printing plate contacts the printing shaft 3, one end is first locked onto one bolt 31. Then, during the rotation of the printing shaft 3, the printing plate gradually wraps around the printing shaft 3 and is tightly wrapped with the printing shaft 3 under the rolling action of the auxiliary pressure roller 32 until the other end is locked onto the other bolt 31. The printing plate is then installed.

[0043] refer to Figure 1 and Figure 5 An electric slide rail 71 is fixed on the frame 7 along the direction perpendicular to the corrugated paper transport. The working principle of the electric slide rail 71 is similar to that of the linear guide rail of the electric slide table motion platform. The electric slide rail 71 is electrically connected to the monitoring camera 72. The electric slide rail 71 drives the monitoring camera 72 to slide back and forth along the direction perpendicular to the corrugated paper transport. A push plate 73 is set below the monitoring camera 72. The push plate 73 is set vertically along the direction parallel to the corrugated paper transport and abuts against the worktable 1. A fourth cylinder 731 is fixed on the worktable 1. The fourth cylinder 731 drives the push plate 73 to slide along the direction perpendicular to the corrugated paper transport.

[0044] A collection platform 8 is provided on the workbench 1. The collection platform 8 is adjacent to the workbench 1 and located on the side opposite to the push plate 73. A collection frame 84 is provided at the bottom of the collection platform 8, and a shield 81 is fixed to the top of the collection platform 8. A fifth cylinder 822 is fixed on the shield 81. A cutter assembly 82 is fixed to the movable end of the fifth cylinder 822. The cutter assembly 82 includes multiple cutters 821 arranged side by side. The cutter assembly 82 reciprocates vertically under the drive of the fifth cylinder 822. The collection platform 8 is equipped with... The device has a blade groove 83 adapted to the cutter assembly 82. Adjacent to each other on both sides of the blade groove 83 are drain holes 831, the width of which is greater than the width of the blade groove 83. After multiple cutters 821 and blade grooves 83 work together to cut the corrugated paper into several relatively small pieces, the paper scraps fall from the drain holes 831 into the recycling box 84. Push plates 85 are slidably connected to both sides of the recycling table 8, parallel to the direction of the cutter assembly 82. A second lead screw assembly 86 is provided on the recycling table 8. The device 86 includes a bidirectional screw 861 and a third motor 862. A through hole 811 is horizontally opened on the shield 81. The third motor 862 is fixedly connected to the worktable 1. The motor shaft of the third motor 862 is fixedly connected to the bidirectional screw 861. The bidirectional screw 861 rotates relative to the recycling table 8. Two push plates 85 are threadedly connected to the bidirectional screw 861 through the through hole 811. The two push plates 85 are symmetrically arranged along the central axis of the bidirectional screw 861. The third motor 862 drives the bidirectional screw 861 to rotate. Under the limiting action of the through hole 811, the push plates 85 move in the direction of approaching or moving away from each other. If the size of the corrugated paper printed material is large, the two push plates 85 first clamp and fix the two sides of the corrugated paper. After the cutter group 82 first cuts the corrugated paper, the remaining corrugated paper on the recycling table 8 is pushed to the bottom of the cutter group 82 for multiple cuts until it is completely cut. This facilitates collection and recycling, reduces the time and cost of manual collection, and achieves the purpose of energy saving and environmental protection.

[0045] The implementation principle of an environmentally friendly corrugated cardboard packaging printing machine according to this application embodiment is as follows: When the printing plate needs to be replaced before printing, the old printing plate is first removed, and then the traction roller 421 on the storage box 4 is started, so that the traction roller 421 and the auxiliary roller 422 drive the new printing plate to move vertically downward. When the printing plate contacts the first guide roller 6, the first guide roller 6 pulls and pushes the printing plate toward the printing shaft 3. Under the traction and abutment of the second guide roller and the auxiliary pressure roller 32, the printing plate is wound on the printing shaft 3, realizing the replacement of the printing plate by the printing machine. After the replacement is completed and printing begins, the monitoring camera 72 monitors the printed products in real time. If there are unqualified products, the push plate 73 pushes them to the recycling table 8. The cutter group 82 cuts and recycles the unqualified corrugated paper, and the batch of qualified printed products are transported to the collection table 9 for collection. This not only realizes automatic replacement of printing plates, saving manpower and material consumption costs, but also improves the printing qualification rate and automatically recycles unqualified products, achieving the purpose of energy saving and environmental protection.

[0046] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An environmentally friendly corrugated cardboard packaging printing machine, comprising a workbench (1), characterized in that: It also includes a chassis (2), which is fixedly connected to the workbench (1). A printing shaft (3) is rotatably connected to the chassis (2). The rotation axis of the printing shaft (3) is perpendicular to the conveying direction of the corrugated paper and is set horizontally. A feed inlet (21) and a discharge outlet (22) are respectively opened on two sides of the chassis (2) parallel to the printing shaft (3). A storage box (4) is fixed on the chassis (2). The storage box (4) is set at a height higher than the feed inlet (21). The storage box (4) is divided into multiple storage slots (41) in parallel. The bottom of the storage slots (41) is an open structure. The storage slots (41) are perpendicular to the conveying direction of the corrugated paper. Limiting grooves (411) are symmetrically arranged on two sides of the machine housing (2). The two limiting grooves (411) move in a direction that approaches or moves away from each other. A drive assembly (42) for driving the printing plate to move downward is provided in the storage slot (41). A first guide roller (6) is slidably connected to the machine housing (2). The first guide roller (6) is located below the storage box (4) and is arranged in a direction parallel to the feed inlet (21). The sliding direction of the first guide roller (6) is along the direction that approaches or moves away from the printing shaft (3). A second guide roller is rotatably connected inside the machine housing (2). The second guide roller is located between the side wall of the machine housing (2) and the printing shaft (3). Furthermore, at the position tangent to the printing shaft (3), the rotation axis of the second guide roller is parallel to the printing shaft (3), and a latch (31) for engaging the printing plate is fixed on the printing shaft (3); the drive assembly (42) includes a traction roller (421) and an auxiliary roller (422), which are arranged parallel to the length of the printing shaft (3), and are located on both sides of the printing plate and roll in contact with the surface of the printing plate, thereby driving the printing plate to move downward; a first lead screw assembly (5) is provided between the limiting groove (411) and the storage box (4). The first lead screw assembly (5) includes a bushing (51) and a one-way screw (52). The bushing (51) is rotatably connected to the storage box (4). The one-way screw (52) is threadedly connected to the bushing (51). The end of the one-way screw (52) away from the bushing (51) is fixed to the limiting groove (411). A telescopic rod (54) for guiding the limiting groove (411) is also provided between the limiting groove (411) and the side wall of the storage box (4). The bottom of the storage slot (41) is slidably connected to a base plate (24). The sliding direction of the base plate (24) is along the direction close to or away from the feed port (21) of the machine box (2).

2. The environmentally friendly corrugated cardboard packaging printing machine according to claim 1, characterized in that: The first guide roller (6) includes a bracket (61) and a first pressure roller (62). A slide groove (25) is fixed on the side wall of the machine housing (2). The bracket (61) itself is arranged parallel to the printing shaft (3) and slides in the slide groove (25). The first pressure roller (62) is looped on the bracket (61) and rotatably connected to the bracket (61).

3. The environmentally friendly corrugated cardboard packaging printing machine according to claim 1, characterized in that: An auxiliary pressure roller (32) is rotatably connected to the machine housing (2). The auxiliary pressure roller (32) is set parallel to the printing shaft (3), and the outer wall of the auxiliary pressure roller (32) abuts against the printing shaft (3).

4. The environmentally friendly corrugated cardboard packaging printing machine according to claim 1, characterized in that: The workbench (1) is equipped with a monitoring camera (72) and a push plate (73). The push plate (73) is slidably connected to the workbench (1). The monitoring camera (72) is located above the push plate (73). The sliding direction of the monitoring camera (72) is perpendicular to the corrugated paper conveying direction. The monitoring camera (72) is located in front of the machine box (2). The push plate (73) is slidably connected below the monitoring camera (72). The push plate (73) is vertically set and abuts against the workbench (1). The sliding direction of the push plate (73) is perpendicular to the corrugated paper conveying direction and is horizontally set.

5. The environmentally friendly corrugated cardboard packaging printing machine according to claim 4, characterized in that: The workbench (1) is provided with a recycling table (8), and a recycling frame (84) is provided at the bottom of the recycling table (8). A cutting knife assembly (82) is slidably connected above the recycling table (8). The cutting knife assembly (82) includes multiple cutting knives (821) fixed side by side. The cutting knife assembly (82) slides back and forth in the vertical direction. The recycling table (8) is provided with a knife groove (83) that matches the cutting knife assembly (82).

6. The environmentally friendly corrugated cardboard packaging printing machine according to claim 5, characterized in that: Push plates (85) are slidably connected to both sides of the recycling platform (8) parallel to the direction of the cutter group (82), and the two push plates (85) slide in the direction of approaching or moving away from each other.

7. The environmentally friendly corrugated cardboard packaging printing machine according to claim 6, characterized in that: The recycling platform (8) is provided with a second lead screw assembly (86), which includes a bidirectional screw (861). A shield (81) is fixed on the recycling platform (8). The bidirectional screw (861) is rotatably connected to the recycling platform (8) in a direction perpendicular to the cutter assembly (82). Two push plates (85) pass through the shield (81) and are threadedly connected to the bidirectional screw (861) respectively. The two push plates (85) are symmetrically arranged along the central axis of the bidirectional screw (861).

Images