Carton printing device

Abstract

The carton printing device comprises a supporting frame, a containing table and a printing table are arranged at the top end of the supporting frame, a feeding mechanism capable of moving in a reciprocating mode is arranged at the bottom end of the containing table, a transmission mechanism is arranged at the bottom ends of the containing table and the printing table, and a printing mechanism is arranged at the top end of the printing table. And a flattening device driven by the transmission mechanism is arranged on the upper surface of the joint of the placing table and the printing table. By arranging the feeding mechanism capable of automatically turning over in the return stroke, the bottom of a carton is protected in the feeding process, the printing definition is improved by arranging the rolling device, the situation that the carton is possibly displaced in the printing process is avoided by forming limiting grooves in the left side and the right side of the printing table, and the printing quality is improved. Through the arrangement of the detachable printing plate and the limiting rotor matched with the printing plate, the use requirements in different environments are met, the application range of the printing device is expanded, and the situation of mutual pollution occurring when printed cartons are stacked and stored is avoided through the arrangement of the air drying device.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of printing apparatus, in particular to a carton printing device. BACKGROUND

[0002] Printing is a technology that converts the content of the original manuscript such as text, pictures, photos, anti-counterfeiting, etc. into a batch of copies by making plates, applying ink, and pressing, etc. Printing is the process of transferring the approved printing plate to the printing material through the printing machine and special ink. In the production process of packaging cartons, the surface of the carton needs to be printed with the enterprise logo.

[0003] CN115742552B discloses a carton printing device, which is provided with two printing rollers, and the printing rollers are wrapped in the inside of the paint tank. Although the device can print the front and back of the carton, it is easy to cause the part of the carton that does not need to be printed to be stained with paint, thereby affecting the printing effect. In addition, the printing roller is not convenient to disassemble and replace the content that needs to be printed, which is difficult to meet different printing needs, has a narrow application range, and the device is easy to cause the carton to be damaged during the clamping process.

[0004] In addition, the existing printing device also has some other problems to be solved, such as some cartons will appear wrinkles, corner lifting, center part protruding, etc. after long time placement, which is easy to cause unclear printing, thereby affecting the printing effect. The printed cartons are easy to be contaminated when stacked due to the printing paint on the surface. In view of the above problems, it is necessary to design a new carton printing device. SUMMARY

[0005] The present application provides a carton printing device to effectively solve the problems of the existing carton printing device.

[0006] The technical scheme adopted by the present application to solve the above problems is: a carton printing device, comprising a support frame, the top end of the support frame is respectively provided with a placing table and a printing table, the bottom end of the placing table is provided with a reciprocating feeding mechanism, the bottom end of the placing table and the printing table is provided with a transmission mechanism, the top end of the printing table is provided with a printing mechanism, the upper surface of the connecting part of the placing table and the printing table is provided with a flattening device driven by the transmission mechanism, the top end of the left and right sides of the flattening device is provided with an adjusting mechanism for adjusting the distance between the flattening devices, the bottom end of the printing table is provided with a pushing mechanism, the left side of the printing table is provided with a air drying mechanism driven by the transmission mechanism, the printing mechanism comprises a detachable printing plate and a rotatable limiting rotor.

[0007] Preferably, the transmission mechanism comprises a first motor fixedly connected to the left bottom end of the placing table, a first pulley set is coaxially fixedly connected to the front end of the first motor, a fixed frame is fixedly connected to the center position of the bottom end of the placing table, the right side of the first pulley set is rotatably connected to the center position of the outer surface of the front end of the fixed frame, a limiting plate is fixedly connected to the front side of the outer surface of the bottom end of the placing table, a sliding groove is formed in the rear side of the limiting plate, a sliding block is slidably connected to the inner wall of the sliding groove, a connecting groove is formed in the center position of the front end of the limiting plate and communicates with the sliding groove, a swing rod is hingedly connected to the center position of the inner wall of the bottom end of the fixed frame, a first hinge rod is coaxially fixedly connected to the outer surface of the right end rear side of the first pulley set, a first guide rod is fixedly connected to the outer surface of the top end rear side of the first hinge rod, and a guide groove is formed in the center position of the bottom end of the swing rod and is adapted to the first guide rod.

[0008] Preferably, the rear end of the sliding block is fixedly connected with a moving block, the moving block is provided with a placing groove at the rear end, the center position of the inner wall bottom end of the placing groove is fixedly connected with a spring, the top end of the spring is fixedly connected with a pressing block, the rear end of the pressing block is fixedly connected with a connecting block, the front and rear sides of the top end of the connecting block are respectively fixedly connected with protrusions, the outer surfaces of the two protrusions away from the center position of the placing table are respectively hingedly connected with second hinge rods, a torsion spring is arranged between the two second hinge rods and the protrusions, the top ends of the two second hinge rods are fixedly connected with a first push rod, a rotating wheel is rotatably connected between the two protrusions, and a first through groove is formed in the center position of the upper surface of the placing table and is adapted to the connecting block.

[0009] Preferably, the periphery of the upper surface of the placing table is respectively fixedly connected with a protection rod, the inner wall of the protection rod is respectively provided with a clamping groove, the inner wall of the clamping groove is slidably connected with a baffle which can move up and down, the outer surface of the bottom end of the protection rod is respectively threadedly connected with a fastening bolt, and the outer surfaces of the front and rear sides of the bottom end of the baffle are respectively fixedly connected with protruding plates.

[0010] Preferably, a second pulley group is coaxially fixedly connected to the right side of the front outer surface of the first pulley group. Connecting frames are fixedly connected to the front and rear sides of the placement table and the printing table, respectively. The top of the second pulley group is rotatably connected to the right side of the front outer surface of the connecting frame. A bevel gear group is coaxially fixedly connected to the front side of the top outer surface of the second pulley group. A worm gear is coaxially fixedly connected to the left side of the bevel gear group. Worm wheels are meshed on the upper and lower sides of the outer surface of the worm gear. Rollers are coaxially fixedly connected to the rear ends of the two worm wheels. A movable locking block is slidably connected to the inner wall of the two connecting frames. A threaded rod is rotatably connected to the top of the locking block. A crank is fixedly connected to the top of the threaded rod. The threaded rod is threadedly connected to the connecting frame. The roller located at the top of the worm gear passes through the inner wall of the locking block and is coaxially fixedly connected to the worm wheel located at the top of the worm gear.

[0011] Preferably, a sixth pulley group is coaxially fixedly connected to the outer surface of the front end of the roller at the bottom of the worm gear, a feeding shaft is coaxially fixedly connected to the left side of the sixth pulley group, and feeding brushes are uniformly fixedly connected to the outer surface of the feeding shaft.

[0012] Preferably, a third pulley assembly is coaxially fixedly connected to the front end of the first motor. A fourth pulley assembly is coaxially fixedly connected to the front and rear ends of the left side of the third pulley assembly. A third hinge rod is coaxially fixedly connected to the top of each of the fourth pulley assemblies. A first moving rod is hinged to the outer surface of the third hinge rod near the placement platform. A fourth hinge rod is hinged to the left side of the first moving rod. Protective plates are fixedly connected to the center positions of the front and rear sides of the upper surface of the printing platform. The left sides of the two fourth hinge rods are hinged to the outer surface of the protective plates. A fifth hinge rod is coaxially fixedly connected to the left sides of the two fourth hinge rods. The top of the fifth hinge rod is rotatably connected to a support plate. A second moving rod is fixedly connected to the center of the left side of the support plate. A rotating rod is rotatably connected to the outer surface of the guard plate near the center of the placement platform. A limit block is fixedly connected to the other end of the rotating rod. The second moving rod is slidably connected to the inner wall of the limit block. A paint tank is fixedly connected to the right end of the guard plate. Removable paint plates are provided on the front and rear sides of the inner wall of the left side of the paint tank. Four limit rotors are evenly rotatably connected around the outer surface of the right end of the support plate. Slots are evenly opened around the limit device. A removable printing plate is provided on the inner wall of the slot.

[0013] Preferably, a second motor is fixedly connected to the bottom of the rear end of the printing table, a fifth pulley group is fixedly connected to the front end of the second motor, a crossbar is fixedly connected to the upper surface of the transmission belt of the fifth pulley group, a second push rod is fixedly connected to the left and right sides of the upper surface of the crossbar, a second through groove adapted to the second push rod is opened at the center of the upper surface of the printing table, and a limiting groove for limiting the carton is opened on the left and right sides of the top of the printing table.

[0014] Preferably, a seventh pulley group is coaxially fixedly connected to the rear side of the fourth pulley group located at the rear end of the placement platform. The seventh pulley group drives the intermittent mechanism to work, and the intermittent mechanism drives the drying mechanism to rotate.

[0015] Preferably, the drying mechanism includes two turntables, each with twelve support grooves evenly distributed on its outer surface. A support shaft is coaxially fixedly connected between the two turntables. The two turntables are rotatably connected to the left side of a support frame. A positioning frame is fixedly connected to the rear end of the left side of the support frame. The left side of the seventh pulley group is rotatably connected to the outer surface of the positioning frame. An arc-shaped block is coaxially fixedly connected to the front end of the seventh pulley group. A connecting plate is fixedly connected to the left side of the arc-shaped block. A second guide rod is fixedly connected to the outer surface of the front end of the left side of the connecting plate. A rotating wheel is coaxially fixedly connected to the center of the outer surface of the rear end of the turntable. Twelve arc-shaped grooves that fit the arc-shaped block are evenly distributed on the outer surface of the rotating wheel. Twelve matching grooves that fit the second guide rod are evenly distributed on the outer surface of the rotating wheel.

[0016] This invention features a novel structure, ingenious design, and simple and convenient operation, offering the following advantages compared to existing technologies: 1. By setting up a motor-driven feeding mechanism, a flattening device, a printing mechanism, a drying mechanism, and a pushing mechanism, and with multiple mechanisms linked together, this invention not only improves the user's work efficiency but also further reduces the use and maintenance costs of the device.

[0017] 2. By setting up a feeding mechanism that automatically flips over during the return stroke, the bottom of the carton is further protected during feeding, avoiding the situation where the push rod scratches the bottom of the carton, thus increasing the practicality of this device.

[0018] 3. By setting up a rolling device, the purpose of flattening the carton before printing is further achieved, thereby improving the clarity of the print.

[0019] 4. By setting limiting grooves on the left and right sides of the printing table, the possibility of carton displacement during printing is avoided, further improving the printing effect of the present invention.

[0020] 5. By setting a detachable printing plate and a limiting rotor that cooperates with the printing plate, the application needs in different environments are further met, multiple printing methods are provided, and the printing position and content can be changed at any time according to the user's needs, thus expanding the scope of application of the present invention.

[0021] 6. By setting up a drying device, the printed cartons are further dried, avoiding cross-contamination when the printed cartons are stacked. Attached Figure Description

[0022] Figure 1 A three-dimensional representation of a carton printing apparatus according to the present invention Figure 1 .

[0023] Figure 2 A three-dimensional representation of a carton printing apparatus according to the present invention Figure 2 .

[0024] Figure 3 This is a schematic diagram of the bottom structure of the placement platform of a carton printing device according to the present invention.

[0025] Figure 4 This is a schematic diagram of the feeding mechanism structure of a carton printing apparatus according to the present invention. Figure 1 .

[0026] Figure 5 This is a schematic diagram of the feeding mechanism structure of a carton printing apparatus according to the present invention. Figure 2 .

[0027] Figure 6 This is an enlarged view of section A of a carton printing apparatus according to the present invention.

[0028] Figure 7 This is a schematic diagram of the top structure of the placement platform of a carton printing apparatus according to the present invention.

[0029] Figure 8 This is a schematic diagram of the adjustment mechanism of a carton printing apparatus according to the present invention.

[0030] Figure 9 This is a schematic diagram of the flattening device structure of a carton printing apparatus according to the present invention.

[0031] Figure 10 This is a schematic diagram of the printing device structure of a carton printing apparatus according to the present invention. Figure 1 .

[0032] Figure 11 This is a schematic diagram of the printing device structure of a carton printing apparatus according to the present invention. Figure 2 .

[0033] Figure 12 This is a schematic diagram of the support plate structure of a carton printing device according to the present invention.

[0034] Figure 13 This is a schematic diagram of the feeding mechanism of a carton printing apparatus according to the present invention.

[0035] Figure 14 This is a schematic diagram of the air-drying mechanism transmission structure of a carton printing apparatus according to the present invention.

[0036] Figure 15 This is a schematic diagram of the intermittent mechanism structure of a carton printing apparatus according to the present invention.

[0037] 1-Support frame, 2-Placement platform, 3-Fixing frame, 4-Feeding mechanism, 5-Guard rod, 6-Baffle, 7-Transmission mechanism, 8-Smoothing device, 9-Printing table, 10-Printing mechanism, 11-Drying mechanism, 12-Pushing mechanism, 13-Intermittent mechanism, 14-Adjusting mechanism, 15-First motor, 16-First pulley group, 17-Second pulley group, 18-Bevel gear group, 19-Third pulley group, 20-Fourth pulley group, 21-Fifth pulley group, 22-Second motor, 23-Swing rod, 24-Limiting plate, 25-Slider, 26-First guide rod, 27-First hinge rod, 28-Moving block, 29-Spring, 30-Pressure block, 31-Connecting block, 32-Rotating wheel, 33-Second hinge rod, 34-Torsion spring, 35-First push rod, 36-First through groove, 37-Protrusion Plate, 38-worm gear, 39-worm wheel, 40-threaded rod, 41-handle, 42-clamping block, 43-roller, 44-sixth pulley assembly, 45-feed shaft, 46-third hinge rod, 47-first moving rod, 48-fourth hinge rod, 49-fifth hinge rod, 50-support plate, 51-second moving rod, 52-rotating rod, 53-limiting block, 54-guard plate, 55-limiting rotor 56-Printing plate, 57-Paint plate, 58-Paint box, 59-Card slot, 60-Second through slot, 61-Cross bar, 62-Second push rod, 63-Limiting slot, 64-Seventh pulley group, 65-Positioning frame, 66-Turntable, 67-Support slot, 68-Rotating wheel, 69-Support shaft, 70-Arc block, 71-Connecting plate, 72-Second guide rod, 73-Arc slot, 74-Matching slot. Detailed Implementation

[0038] The following are specific embodiments of the present invention, and the technical solutions of the present invention will be further described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0039] like Figures 1-15 As shown, the present invention provides a carton printing device, including a support frame 1. The top of the support frame 1 is respectively provided with a placement platform 2 and a printing platform 9. The bottom of the placement platform 2 is provided with a reciprocating movable upper surface at the connection between the placement platform 2 and the printing platform 9. A flattening device 8 driven by a transmission mechanism 7 is provided on the top of the left and right sides of the flattening device 8. An adjustment mechanism 14 for adjusting the distance between the flattening devices 8 is provided on the top of the left and right sides of the flattening device 8. A pushing mechanism 12 is provided at the bottom of the printing platform 9. A drying mechanism 11 driven by the transmission mechanism 7 is provided on the left side of the printing platform 9. The printing mechanism includes a detachable printing plate 56 and a rotatable limiting rotor 55.

[0040] The specific working process of this device is as follows: When using the device, the user first places the cardboard box to be printed on the upper surface of the placement platform 2. Then, the transmission mechanism 7 driven by the first motor 15 drives the feeding mechanism 4 to work, flattening the cardboard box to be printed by the flattening device 8 and placing it on the upper surface of the printing platform 9. Then, the printing mechanism 10 driven by the transmission mechanism 7 prints the cardboard box. After printing, the cardboard box enters the drying mechanism 11 through the pushing mechanism 12 driven by the second motor 22. The drying mechanism is driven by the transmission mechanism 7. After drying, the printed side of the cardboard box faces down to avoid dust contamination of the printed area.

[0041] The transmission mechanism 7 includes a first motor 15 fixedly connected to the bottom left side of the placement platform 2. A first pulley group 16 is coaxially fixedly connected to the front end of the first motor 15. A fixed frame 3 is fixedly connected to the center of the bottom of the placement platform 2. The right side of the first pulley group 16 is rotatably connected to the center of the outer surface of the front end of the fixed frame 3. A limiting plate 24 is fixedly connected to the front side of the outer surface of the bottom of the placement platform 2. A sliding groove is opened on the rear side of the limiting plate 24. A slider 25 is slidably connected to the inner wall of the sliding groove. A connecting groove communicating with the sliding groove is opened at the center of the front end of the limiting plate 24. A swing rod 23 is hinged to the center of the outer surface of the front end of the slider 25. The bottom end of the swing rod 23 is rotatably connected to the center of the inner wall of the bottom of the fixed frame 3. A first hinge rod 27 is coaxially fixedly connected to the outer surface of the rear right side of the first pulley group 16. A first guide rod 26 is fixedly connected to the outer surface of the rear top of the first hinge rod 27. A guide groove adapted to the first guide rod 26 is opened at the center of the bottom end of the swing rod 23.

[0042] The rear end of the slider 25 is fixedly connected to a movable block 28. The rear end of the movable block 28 is provided with a placement groove. A spring 29 is fixedly connected to the center of the bottom of the inner wall of the placement groove. A pressure block 30 is fixedly connected to the top of the spring 29. A connecting block 31 is fixedly connected to the rear end of the pressure block 30. Protrusions are fixedly connected to the front and rear sides of the top of the connecting block 31. The outer surfaces of the two protrusions away from the center of the placement platform 2 are respectively hinged with second hinge rods 33. A torsion spring 34 is provided between the two second hinge rods 33 and the protrusions. A first push rod 35 is fixedly connected to the top of the two second hinge rods 33. A rotating wheel 32 is rotatably connected between the two protrusions. A first through groove 36 adapted to the connecting block 31 is opened at the center of the upper surface of the placement platform 2.

[0043] The working principle of the feeding mechanism 4 is as follows: During the operation of the first motor 15, the first pulley group 16 is driven to rotate. During the rotation of the first pulley group 16, the first hinge rod 27 is driven to rotate. During the rotation of the first hinge rod 27, the swing rod 23 is driven to swing left and right. During the swing of the swing rod 23, the slider 25 is driven to move left and right. When the slider 25 moves to the left, the second hinge rod 33 is perpendicular to the horizontal plane of the placement platform 2 under the action of the torsion force of the torsion spring 34, thereby driving the carton to move to the left. When the second hinge rod 33 moves to the right... When the second hinge rod is subjected to the pressure of the top carton, it flips to the lower left. At this time, the top of the rotating wheel 32 rotates against the bottom surface of the carton. When the rotating wheel moves to the leftmost side of the placement platform 2, the second hinge rod 33 rebounds under the torsion of the torsion spring 34, and the top of the first push rod 35 abuts against the bottom of the protrusion plate 37, thereby keeping the second hinge rod 33 perpendicular to the placement platform 2. The purpose of the second hinge rod 33 moving to the lower left during the return stroke is to avoid scratching the bottom of the carton during the return stroke of the feeding mechanism, thereby protecting the carton.

[0044] Protective rods 5 are fixedly connected to the four sides of the upper surface of the placement platform 2. The inner wall of the protective rods 5 is provided with slots. The inner wall of the slots is slidably connected to baffles 6 that can move up and down. The bottom of the outer surface of the protective rods 5 is threaded with fastening bolts. The outer surfaces of the front and rear sides of the bottom of the baffles 6 are fixedly connected with protruding plates 37.

[0045] The adjustable baffle 6 is designed to limit the size of the discharge port according to the thickness of the carton. The baffle 6 is used in conjunction with the fastening bolts to work with the feeding mechanism 4, thereby preventing the carton from getting stuck during the feeding process and improving printing efficiency.

[0046] A second pulley group 17 is coaxially fixedly connected to the right side of the front outer surface of the first pulley group 16. Connecting frames are fixedly connected to the front and rear sides of the placement table 2 and the printing table 9, respectively. The top of the second pulley group 17 is rotatably connected to the right side of the front outer surface of the connecting frame. A bevel gear group 18 is coaxially fixedly connected to the front side of the top outer surface of the second pulley group 17. A worm gear 38 is coaxially fixedly connected to the left side of the bevel gear group 18. Worm wheels 39 are meshed on the upper and lower sides of the outer surface of the worm gear 38, respectively. Rollers 43 are coaxially fixedly connected to the rear ends of the two worm wheels 39, respectively. A movable locking block 42 is slidably connected to the inner wall of the two connecting frames, respectively. A threaded rod 40 is rotatably connected to the top of the locking block 42. A crank 41 is fixedly connected to the top of the threaded rod 40. The threaded rod 40 is threadedly connected to the connecting frame. The roller 43 located at the top of the worm gear 38 passes through the inner wall of the locking block 42 and is coaxially fixedly connected to the worm wheel 39 located at the top of the worm gear 38.

[0047] The working principle of the flattening device 8 is as follows: During the operation of the first motor 15, the second pulley group 17 is driven to rotate. During the rotation of the second pulley group 17, the bevel gear group 18 is driven to rotate, which in turn drives the worm gear 38 to rotate. During the rotation of the worm gear 38, the two worm wheels 39 are driven to rotate. During the rotation of the worm wheels 39, the two rollers 43 are driven to rotate. The distance between the two rollers 43 is adjusted by rotating the two crank handles 41. During the rotation of the crank handles 41, the threaded rod 40 is driven to move downward, which in turn drives the locking block 42 to move downward, thereby adjusting the distance between the two rollers 43. During the rotation of the rollers 43, the carton is flattened. The flattened carton is placed on the upper surface of the printing table 9, which facilitates printing and improves the clarity of the printing.

[0048] The outer surface of the front end of the roller 43 located at the bottom of the worm gear 38 is coaxially fixedly connected to the sixth pulley group 44. The left side of the sixth pulley group 44 is coaxially fixedly connected to the feeding shaft 45. Feeding brushes are uniformly fixedly connected to the outer surface of the feeding shaft 45.

[0049] As the roller 43 rotates, it drives the sixth pulley group 44 to rotate, and as the sixth pulley group 44 rotates, it drives the feeding shaft 45 to rotate, thereby feeding the carton into the upper surface of the printing table 9.

[0050] The front end of the first motor 15 is coaxially fixedly connected to a third pulley group 19. The front and rear ends of the left side of the third pulley group 19 are coaxially fixedly connected to a fourth pulley group 20. The top ends of the fourth pulley group 20 are coaxially fixedly connected to a third hinge rod 46. A first moving rod 47 is hinged to the outer surface of the third hinge rod 47 near the placement platform 2. A fourth hinge rod 48 is hinged to the left side of the first moving rod 47. Protective plates 54 are fixedly connected to the center positions of the front and rear sides of the upper surface of the printing table 9. The left sides of the two fourth hinge rods 48 are hinged to the outer surface of the protective plates 54. A fifth hinge rod 49 is coaxially fixedly connected to the left side of the two fourth hinge rods 48. A support plate 50 is rotatably connected to the top of the rod 49. A second moving rod 51 is fixedly connected to the center of the left side of the support plate 50. A rotating rod 52 is rotatably connected to the outer surface of the guard plate 54 near the center of the placement platform 2. A limit block 53 is fixedly connected to the other end of the rotating rod 52. The second moving rod 51 is slidably connected to the inner wall of the limit block 53. A paint box 58 is fixedly connected to the right end of the guard plate 54. Removable paint plates 57 are respectively provided on the front and rear sides of the inner wall of the left side of the paint box 58. Four limit rotors 55 are evenly rotatably connected around the outer surface of the right end of the support plate 50. Slots 59 are evenly opened around the perimeter of the limit device. A removable printing plate 56 is provided on the inner wall of the slot 59.

[0051] The working principle of the printing mechanism 10 is as follows: the first motor 15 drives the third pulley group 19 to rotate, the third pulley group 19 simultaneously drives the two fourth pulley groups 20 to rotate, the two fourth pulley groups 20 drive the two third hinge rods 46 to rotate, the two third hinge rods 46 drive the two first moving rods 47 to move, the two first moving rods 47 drive the two fourth hinge rods 48 to swing, the fourth hinge rods 48 drive the fifth hinge rod 49 to swing, the fifth hinge rod 49 swings to achieve the support plate 50 to rotate 90 degrees, thereby achieving the purpose of printing. Specifically, when the support plate is parallel to the paint box 58, the printing plate 56 is attached to the paint plate 57 to pick up the paint, and then rotates 90 degrees to print the paint on the upper surface of the carton.

[0052] It is worth noting that the limiting rotor 55 set on the outer surface of the right end of the printing plate 56 is rotatable. The position of the rotor can be set according to the specific printing needs. The rotors work together in pairs, and can print horizontally or vertically. The specific printing shape can be adjusted as needed. A printing plate can also be set on the inner wall of a single rotor to achieve printing on a single limiting rotor. By setting the limiting rotor, different printing methods are realized, which meets the printing needs of different parts and expands the application range of this device. In addition, the printing plate is easy to disassemble, further adapting to the usage needs in different environments.

[0053] A second motor 22 is fixedly connected to the bottom of the rear end of the printing table 9. A fifth pulley group 21 is fixedly connected to the front end of the second motor 22 on the same axis. A crossbar 61 is fixedly connected to the upper surface of the transmission belt of the fifth pulley group 21. A second push rod 62 is fixedly connected to the left and right sides of the upper surface of the crossbar 61. A second through groove 60 adapted to the second push rod 62 is opened at the center of the upper surface of the printing table 9. A limiting groove 63 for limiting the carton is opened on the left and right sides of the top of the printing table 9.

[0054] After printing, the cartons are pushed into the drying mechanism 11 by the pushing mechanism 12. The specific working process is as follows: During the operation of the second motor 22, the fifth pulley group 21 is driven to rotate. The fifth pulley group 21 drives the crossbar 61 to move. The printed cartons are pushed into the drying mechanism 11 by the second push rod 62. The purpose of setting the limiting groove 63 is to prevent the cartons from shifting during the printing process, which further improves the printing effect.

[0055] The seventh pulley group 64 is coaxially fixed to the rear side of the fourth pulley group 20 located at the rear end of the placement platform 2. The seventh pulley group 64 drives the intermittent mechanism 13 to work, and the intermittent mechanism 13 drives the drying mechanism 11 to rotate.

[0056] The air-drying mechanism 11 includes two turntables 66. The outer surface of the turntables 66 is evenly provided with twelve support grooves 67. The two turntables 66 are coaxially fixedly connected to a support shaft 69. The two turntables 66 are rotatably connected to the left side of the support frame 1. The rear end of the left side of the support frame 1 is fixedly connected to a positioning frame 65. The left side of the seventh pulley group 64 is rotatably connected to the outer surface of the positioning frame 65. The front end of the seventh pulley group 64 is coaxially fixedly connected to an arc-shaped block 70. The left side of the arc-shaped block 70 is fixedly connected to a connecting plate 71. The outer surface of the front end of the left side of the connecting plate 71 is fixedly connected to a second guide rod 72. The center of the outer surface of the rear end of the turntable 66 is coaxially fixedly connected to a wheel 68. The outer surface of the wheel 68 is evenly provided with twelve arc-shaped grooves 73 that are adapted to the arc-shaped block 70. The outer surface of the wheel 68 is evenly provided with twelve mating grooves 74 that are adapted to the second guide rod 72.

[0057] The working principle of the air drying mechanism 11 is as follows: During the rotation of the first motor 15, the seventh pulley group 64 drives the arc block 70 to rotate. During the rotation of the arc block 70, the connecting plate 71 rotates. During the rotation of the connecting plate 71, the second guide rod 72 and the mating groove 74 drive the rotating wheel 68 to rotate 30 degrees. That is to say, a support groove 67 set every 30 degrees on the turntable 66 can hold a printed carton. Therefore, the air drying mechanism 11 works with the pushing mechanism 12 to place the printed cartons on the inner wall of the support groove 67. When the turntable 66 rotates 180 degrees, the first carton that enters slowly slides out of the inner wall of the support groove 67. After sliding, the printed surface of the carton faces down to avoid the printed surface being contaminated by the external environment.

[0058] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A carton printing apparatus, comprising a support frame (1), a placement platform (2) and a printing platform (9) respectively provided at the top of the support frame (1), a reciprocating feeding mechanism (4) provided at the bottom of the placement platform (2), a transmission mechanism (7) provided at the bottom of the placement platform (2) and the printing platform (9), and a printing mechanism (10) provided at the top of the printing platform (9), characterized in that: The upper surface of the connection between the placement table (2) and the printing table (9) is provided with a flattening device (8) driven by the transmission mechanism (7). The top of the flattening device (8) on both sides is provided with an adjustment mechanism (14) for adjusting the distance between the flattening device (8). The bottom of the printing table (9) is provided with a pushing mechanism (12). The left side of the printing table (9) is provided with a drying mechanism (11) driven by the transmission mechanism (7). The printing mechanism includes a detachable printing plate (56) and a rotatable limiting rotor (55).

2. The carton printing apparatus as described in claim 1, characterized in that: The transmission mechanism (7) includes a first motor (15) fixedly connected to the bottom left side of the placement platform (2). A first pulley assembly (16) is coaxially fixedly connected to the front end of the first motor (15). A fixed frame (3) is fixedly connected to the center of the bottom end of the placement platform (2). The right side of the first pulley assembly (16) is rotatably connected to the center of the outer surface of the front end of the fixed frame (3). A limiting plate (24) is fixedly connected to the front side of the outer surface of the bottom end of the placement platform (2). A sliding groove is provided on the rear side of the limiting plate (24). A slider (25) is slidably connected to the inner wall of the sliding groove. The center of the front end of the limiting plate (24) is provided with a connecting groove that is connected to the slide. The center of the outer surface of the front end of the slider (25) is hinged with a rocker arm (23). The bottom end of the rocker arm (23) is rotatably connected to the center of the inner wall of the bottom end of the fixed frame (3). The outer surface of the right rear side of the first pulley group (16) is coaxially fixedly connected with a first hinge rod (27). The outer surface of the top rear side of the first hinge rod (27) is fixedly connected with a first guide rod (26). The center of the bottom end of the rocker arm (23) is provided with a guide groove that is compatible with the first guide rod (26).

3. The carton printing apparatus as described in claim 2, characterized in that: The rear end of the slider (25) is fixedly connected to a moving block (28). The rear end of the moving block (28) is provided with a placement groove. A spring (29) is fixedly connected to the center of the bottom of the inner wall of the placement groove. A pressure block (30) is fixedly connected to the top of the spring (29). A connecting block (31) is fixedly connected to the rear end of the pressure block (30). Protrusions are fixedly connected to the front and rear sides of the top of the connecting block (31). The outer surfaces of the two protrusions away from the center of the placement platform (2) are respectively hinged with second hinge rods (33). A torsion spring (34) is provided between the two second hinge rods (33) and the protrusions. A first push rod (35) is fixedly connected to the top of the two second hinge rods (33). A rotating wheel (32) is rotatably connected between the two protrusions. A first through groove (36) adapted to the connecting block (31) is opened at the center of the upper surface of the placement platform (2).

4. The carton printing apparatus as described in claim 3, characterized in that: Protective rods (5) are fixedly connected to the four sides of the upper surface of the placement platform (2). The inner wall of the protective rods (5) is provided with slots. The inner wall of the slots is slidably connected with baffles (6) that can move up and down. The bottom of the outer surface of the protective rods (5) is threaded with fastening bolts. The outer surfaces of the front and rear sides of the bottom of the baffles (6) are fixedly connected with protrusions (37).

5. A carton printing apparatus as described in claim 2, characterized in that: The second pulley group (17) is coaxially fixedly connected to the right side of the front outer surface of the first pulley group (16). Connecting frames are fixedly connected to the front and rear sides of the placement table (2) and the printing table (9). The top of the second pulley group (17) is rotated to connect to the right side of the front outer surface of the connecting frame. The bevel gear group (18) is coaxially fixedly connected to the front side of the top outer surface of the second pulley group (17). The worm gear (38) is coaxially fixedly connected to the left side of the bevel gear group (18). Worm wheels are meshed on the upper and lower sides of the outer surface of the worm gear (38). (39) Rollers (43) are coaxially fixedly connected to the rear ends of the two worm gears (39). The inner walls of the two connecting frames are slidably connected to the movable blocks (42). The top of the blocks (42) is rotatably connected to the threaded rod (40). The top of the threaded rod (40) is fixedly connected to the crank (41). The threaded rod (40) is threadedly connected to the connecting frame. The roller (43) at the top of the worm (38) passes through the inner wall of the blocks (42) and is coaxially fixedly connected to the worm gear (39) at the top of the worm (38).

6. The carton printing apparatus as described in claim 5, characterized in that: The outer surface of the front end of the roller (43) located at the bottom of the worm (38) is coaxially fixedly connected to the sixth pulley group (44), and the left side of the sixth pulley group (44) is coaxially fixedly connected to the feeding shaft (45). The outer surface of the feeding shaft (45) is uniformly fixedly connected to the feeding brush.

7. A carton printing apparatus as described in claim 2, characterized in that: The front end of the first motor (15) is coaxially fixedly connected to the third pulley group (19). The front and rear ends of the left side of the third pulley group (19) are coaxially fixedly connected to the fourth pulley group (20). The top end of the fourth pulley group (20) is coaxially fixedly connected to the third hinge rod (46). The outer surface of the third hinge rod (47) near the placement table (2) is hinged to the first moving rod (47). The left side of the first moving rod (47) is hinged to the fourth hinge rod (48). The center positions of the front and rear sides of the upper surface of the printing table (9) are fixedly connected to the guard plate (54). The left sides of the two fourth hinge rods (48) are hinged to the outer surface of the guard plate (54). The left sides of the two fourth hinge rods (48) are coaxially fixedly connected to the fifth hinge rod (49). 9) is rotatably connected to a support plate (50). A second moving rod (51) is fixedly connected to the center position on the left side of the support plate (50). A rotating rod (52) is rotatably connected to the outer surface of the guard plate (54) near the center position of the placement platform (2). A limit block (53) is fixedly connected to the other end of the rotating rod (52). The second moving rod (51) is slidably connected to the inner wall of the limit block (53). A paint box (58) is fixedly connected to the right end of the guard plate (54). A detachable paint plate (57) is provided on the front and back sides of the inner wall on the left side of the paint box (58). Four limit rotors (55) are evenly rotatably connected around the outer surface of the right end of the support plate (50). A slot (59) is evenly opened around the perimeter of the limit device. A detachable printing plate (56) is provided on the inner wall of the slot (59).

8. The carton printing apparatus as described in claim 1, characterized in that: A second motor (22) is fixedly connected to the bottom of the rear end of the printing table (9). A fifth pulley group (21) is fixedly connected to the front end of the second motor (22) on the same axis. A crossbar (61) is fixedly connected to the upper surface of the transmission belt of the fifth pulley group (21). A second push rod (62) is fixedly connected to the left and right sides of the upper surface of the crossbar (61). A second through groove (60) adapted to the second push rod (62) is opened at the center of the upper surface of the printing table (9). A limiting groove (63) for limiting the carton is opened on the left and right sides of the top of the printing table (9).

9. A carton printing apparatus as described in claim 7, characterized in that: The rear side of the fourth pulley group (20) located at the rear end of the placement platform (2) is coaxially fixedly connected to the seventh pulley group (64). The seventh pulley group (64) drives the intermittent mechanism (13) to work, and the intermittent mechanism (13) drives the drying mechanism (11) to rotate.

10. A carton printing apparatus as described in claim 9, characterized in that: The air-drying mechanism (11) includes two turntables (66). Twelve support grooves (67) are evenly provided on the outer surface of the turntables (66). A support shaft (69) is coaxially fixed between the two turntables (66). The two turntables (66) are rotatably connected to the left side of the support frame (1). A positioning frame (65) is fixedly connected to the rear end of the left side of the support frame (1). The left side of the seventh pulley group (64) is rotatably connected to the outer surface of the positioning frame (65). An arc-shaped support shaft is coaxially fixed to the front end of the seventh pulley group (64). Block (70), the left side of the arc block (70) is fixedly connected to a connecting plate (71), the outer surface of the left front end of the connecting plate (71) is fixedly connected to a second guide rod (72), and the center of the outer surface of the rear end of the turntable (66) located on the rear side is coaxially fixedly connected to a rotating wheel (68). The outer surface of the rotating wheel (68) is evenly provided with twelve arc grooves (73) that are adapted to the arc block (70), and the outer surface of the rotating wheel (68) is evenly provided with twelve mating grooves (74) that are adapted to the second guide rod (72).

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