A packaging carton printing machine

Abstract

The present invention discloses a packaging paper box printing machine, comprising a frame and a conveyor belt, wherein a dust removal device, a printing device and a drying device are sequentially arranged on the frame, the conveyor belt passes through the dust removal device, the printing device and the drying device, and a conveying roller is arranged on the frame, the printing device comprises a mounting frame, a first plate cylinder, a second plate cylinder and an ink transfer component, the first plate cylinder and the second plate cylinder are slidably mounted on the mounting frame, the ink transfer component is stacked into two groups, and includes a hopper, an ink fountain roller and a driving element. The present invention arranges the first plate cylinder, the second plate cylinder and two groups of ink transfer components, and uses a power component to control the swing of the triangular fixing frame, so that the first plate cylinder or the second plate cylinder contacts one of the ink fountain rollers, thereby causing the ink to adhere to the plate cylinder and complete the printing of the packaging paper box, and can simultaneously have two printing plates of different colors or shapes, and the printing adjustment method is simple and convenient.

Description

Technical Field

[0001] The invention discloses a packaging paper box printing machine, belonging to the technical field of printing equipment. Background Art

[0002] A printing press is a machine that prints text and images. A digital printing press, also known as a universal flatbed printer or flatbed printer, has broken through the bottleneck of digital printing technology and achieved true one-sheet printing, no need for plate making, and full-color image completion in one go. It is a successor to traditional printing presses.

[0003] In order to print patterns of different shapes or colors on packaging cartons, existing digital printing requires disassembling the original plate cylinder and replacing it with another set of plate cylinders. However, since disassembling and assembling the plate cylinders is troublesome and time-consuming, there are great limitations when changing the plate for packaging cartons. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems in the prior art and to provide a packaging carton printing machine.

[0005] The present invention achieves the above-mentioned purpose through the following technical scheme: a packaging paper box printing machine, comprising a frame and a conveyor belt, wherein a dust removal device, a printing device and a drying device are sequentially arranged on the frame, the conveyor belt passes through the dust removal device, the printing device and the drying device, and a conveying roller is arranged on the frame, the printing device comprises a mounting frame, a first plate cylinder, a second plate cylinder and an ink transfer member, the first plate cylinder and the second plate cylinder are slidably mounted on the mounting frame, the ink transfer member is symmetrically arranged in two groups, and the ink transfer member comprises a hopper, an ink fountain roller and a driving element, the ink fountain roller is located below the hopper, the driving element drives the ink fountain roller to rotate, a driving gear is provided at the end of the ink fountain roller, and a driven gear is provided at the end of the first plate cylinder and the second plate cylinder, and an adjusting device is provided on the mounting frame for driving the first plate cylinder or the second plate cylinder to conflict with one of the ink fountain rollers.

[0006] Preferably, the adjusting device includes a triangular fixing frame and a transmission shaft, and there are two triangular fixing frames. The two ends of the first plate cylinder and the second plate cylinder are rotatably connected to the two triangular fixing frames, and the two ends of the transmission shaft are fixedly connected to the two triangular fixing frames. Two arc-shaped slide grooves are provided on the mounting frame, and the transmission shaft passes through one end of one of the triangular fixing frames and is provided with a power part for driving the first plate cylinder and the second plate cylinder to slide along the arc-shaped slide groove.

[0007] Preferably, the power part includes a transmission gear, a rack, a screw and a fixed block. The screw passes through the fixed block and is threadedly connected to the rack. The fixed block is fixed on the mounting frame. The transmission gear is fixedly connected to the transmission shaft and meshes with the rack for transmission. The rack is provided with a guide bar that slides with the mounting frame, and a handwheel is provided at the end of the screw.

[0008] Preferably, the central angle of the arc-shaped chute is 30-45°.

[0009] Preferably, the transmission shaft is a stepped shaft structure, and both ends thereof are connected to the triangular fixing frame via at least two pins.

[0010] Preferably, the first plate cylinder and the second plate cylinder have the same or different plate patterns, and the two hoppers are filled with inks of the same or different colors.

[0011] Preferably, the driving element includes a motor, a driving wheel, a driven wheel and a belt, the driving wheel and the driven wheel are fixed on the output shaft of the motor and the ink fountain roller respectively, and the belt is sleeved between the driving wheel and the driven wheel.

[0012] Preferably, the dust removal device includes a dust removal adsorption cover, a movable plate, a bracket and an adjusting bolt, the movable plate is slidably arranged on the bracket, the dust removal adsorption cover is installed on the movable plate, and the adjusting bolt is threadedly connected to the bracket and rotatably connected to the movable plate.

[0013] Preferably, a collecting rack is provided at one end of the frame, a supporting plate is slidably provided on the collecting rack, and a cylinder for pushing the supporting plate up and down is provided at the bottom of the collecting rack.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] By setting a first plate cylinder, a second plate cylinder and two sets of ink transfer parts, and using a power part to control the swing of the triangular fixing frame, the first plate cylinder or the second plate cylinder is brought into contact with one of the ink fountain rollers, so that the ink adheres to the plate cylinder and completes the printing of the packaging paper box. Since the plate patterns on the first plate cylinder and the second plate cylinder are selected and set to the same or different plate patterns, and the ink in the two hoppers can also be selected as the same color or different colors as needed, the printing needs of different plates of packaging paper boxes can be met. In particular, when the number of plate cylinders and ink transfer parts increases, the range of selectable printing styles is larger, and switching between plates is more convenient, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a packaging carton printing machine of the present invention;

[0017] Figure 2 It is a schematic diagram of the partial structure of the printing device in the present invention;

[0018] Figure 3 It is a structural schematic diagram of the transmission shaft and the triangular fixing frame in the present invention;

[0019] Figure numerals: 1. frame; 2. dust removal and adsorption hood; 3. bracket; 4. movable plate; 5. adjusting bolt; 6. ink transfer part; 7. arc chute; 8. drying device; 9. conveyor roller; 10. collecting rack; 11. supporting plate; 12. cylinder; 13. conveyor belt; 14. mounting frame; 15. driving element; 16. adjusting device; 17. ink fountain roller; 18. driven gear; 19. first plate cylinder; 20. hand wheel; 21. fixing block; 22. screw; 23. transmission gear; 24. rack; 25. guide bar; 26. transmission shaft; 27. triangular fixing frame; 28. driving gear; 29. ​​belt; 30. motor; 31. driving wheel; 32. second plate cylinder; 33. hopper; 34. power part; 35. latch. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example 1

[0022] like Figure 1-Figure 3 As shown, a packaging carton printing machine includes a frame 1 and a conveyor belt 13. A dust removal device, a printing device and a drying device 8 are sequentially arranged on the frame 1. The conveyor belt 13 passes through the dust removal device, the printing device and the drying device 8, and a conveying roller 9 is arranged on the frame 1. The printing device includes a mounting frame 14, a first plate cylinder 19, a second plate cylinder 32 and an ink transfer member 6. The first plate cylinder 19 and the second plate cylinder 32 are slidably mounted on the mounting frame 14. The ink transfer member 6 is symmetrically arranged in two groups, and the ink transfer member 6 includes a hopper 33, an ink fountain roller 17 and a driving element 15. The ink fountain roller 17 is located below the hopper 33. The driving element 15 drives the ink fountain roller 17 to rotate. A driving gear 28 is provided at the end of the ink fountain roller 17. A driven gear 18 is provided at the end of the first plate cylinder 19 and the second plate cylinder 32. An adjusting device 16 for driving the first plate cylinder 19 or the second plate cylinder 32 to conflict with one of the ink fountain rollers 17 is provided on the mounting frame 14.

[0023] The adjusting device 16 includes a triangular fixing frame 27 and a transmission shaft 26. There are two triangular fixing frames 27. The two ends of the first plate cylinder 19 and the second plate cylinder 32 are rotatably connected to the two triangular fixing frames 27. The two ends of the transmission shaft 26 are fixedly connected to the two triangular fixing frames 27. Two arc-shaped chutes 7 are provided on the mounting frame 14. The transmission shaft 26 passes through one end of one of the triangular fixing frames 27 and is provided with a power member 34 for driving the first plate cylinder 19 and the second plate cylinder 32 to slide along the arc-shaped chute 7. The power member 34 includes a transmission gear 23, a rack 24, a screw 22 and a fixed block 2 1. The screw 22 passes through the fixed block 21 and is threadedly connected to the rack 24. The fixed block 21 is fixed to the mounting frame 14. The transmission gear 23 is fixedly connected to the transmission shaft 26 and meshes with the rack 24 for transmission. The rack 24 is provided with a guide bar 25 that slides with the mounting frame 14. The end of the screw 22 is provided with a handwheel 20. The central angle of the arc-shaped slide 7 is 30°. The transmission shaft 26 is a stepped shaft structure, and its two ends are connected to the triangular fixed frame 27 by at least two pins 35. The first plate cylinder 19 and the second plate cylinder 32 have the same plate pattern, and the two hoppers 33 are filled with inks of different colors.

[0024] The driving element 15 includes a motor 30, a driving wheel 31, a driven wheel and a belt 29. The driving wheel 31 and the driven wheel are respectively fixed on the output shaft of the motor 30 and the ink roller 17. The belt 29 is sleeved between the driving wheel 31 and the driven wheel. The dust removal device includes a dust removal adsorption cover 2, a movable plate 4, a bracket 3 and an adjusting bolt 5. The movable plate 4 is slidably set on the bracket 3, and the dust removal adsorption cover 2 is installed on the movable plate 4. The adjusting bolt 5 is threadedly connected to the bracket 3 and is rotatably connected to the movable plate 4. A collecting rack 10 is provided at one end of the frame 1, and a supporting plate 11 is slidably set on the collecting rack 10, and a cylinder 12 for pushing the supporting plate 11 up and down is provided at the bottom of the collecting rack 10.

[0025] Working principle: The external feeding device conveys the cardboard of the formed packaging box to the conveyor belt 13, and then the conveying roller 9 drives the cardboard to be conveyed at a constant speed. When passing through the dust removal adsorption cover 2, the fan removes the dust and impurities on the surface of the cardboard, and then enters the printing device to avoid affecting the printing quality. At this time, the first plate cylinder 19 contacts one of the ink fountain rollers 17, and the driving gear 28 engages with the driven gear 18 for transmission, and transfers the ink in the hopper 33 to the first plate cylinder 19, and then prints it on the cardboard, thereby completing the printing work. The second plate cylinder 32 does not contact the other ink fountain roller 17 and does not print on the cardboard. When it is necessary to print another color pattern, the screw is rotated at this time. The rod 22 causes the rack 24 to drive the transmission gear 23 to rotate 30°, and the mounting frame 14 also rotates 30° synchronously, so that the first plate cylinder 19 is out of contact with the ink fountain roller 17, and the second plate cylinder 32 is in contact with the other ink fountain roller 17. Under the meshing transmission of the driving gear 28 and the driven gear 18 at the ends of both, the ink in the other hopper 33 can be printed on the cardboard. When the ink fountain roller 17 does not need to transfer ink, the corresponding driving element 15 stops working, so that different colors and the same pattern can be printed. The printing operation of the printing plate is simple and convenient, labor-intensive, and time-saving. After printing, the cardboard is dried and stacked on the support plate 11.

[0026] Example 2

[0027] The difference between this embodiment and embodiment 1 is that the two hoppers 33 are filled with ink of the same color, while the plate patterns on the first plate cylinder 19 and the second plate cylinder 32 are different, so that cardboards with the same color but different shapes can be printed.

[0028] Example 3

[0029] The difference between this embodiment and the first and second embodiments is that the two hoppers 33 are filled with inks of different colors, and the patterns on the first plate cylinder 19 and the second plate cylinder 32 are also different. In this way, cardboards with different colors and shapes can be printed. In particular, when the number of plate cylinders and ink transfer members increases, a wider range of printing styles can be selected.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0031] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A packaging carton printing machine, comprising a frame (1) and a conveyor belt (13), characterized in that: The frame (1) is provided with a dust removal device, a printing device and a drying device (8) in sequence, the conveyor belt (13) passes through the dust removal device, the printing device and the drying device (8), and the frame (1) is provided with a conveying roller (9), the printing device includes a mounting frame (14), a first plate cylinder (19), a second plate cylinder (32) and an ink transfer member (6), the first plate cylinder (19) and the second plate cylinder (32) are slidably mounted on the mounting frame (14), the ink transfer member (6) is symmetrically provided with two groups, and the ink transfer member (6) includes a hopper (33), an ink fountain roller (17) and a driving element ( 15), the ink fountain roller (17) is located below the hopper (33), the driving element (15) drives the ink fountain roller (17) to rotate, the end of the ink fountain roller (17) is provided with a driving gear (28), the ends of the first plate cylinder (19) and the second plate cylinder (32) are provided with a driven gear (18), the mounting frame (14) is provided with an adjusting device (16) for driving the first plate cylinder (19) or the second plate cylinder (32) to contact one of the ink fountain rollers (17), the adjusting device (16) includes a triangular fixing frame (27) and a transmission shaft (26), the triangular fixing frame (27) 7) are provided with two, the two ends of the first plate roller (19) and the second plate roller (32) are rotatably connected to the two triangular fixing frames (27), the two ends of the transmission shaft (26) are fixedly connected to the two triangular fixing frames (27), the mounting frame (14) is provided with two arc-shaped slide grooves (7), the transmission shaft (26) passes through one end of one of the triangular fixing frames (27) and is provided with a power member (34) for driving the first plate roller (19) and the second plate roller (32) to slide along the arc-shaped slide groove (7), the power member (34) includes a transmission gear (23), a rack (24), a screw (22 ) and a fixed block (21), the screw (22) passes through the fixed block (21) and is threadedly connected to the rack (24), the fixed block (21) is fixed on the mounting frame (14), the transmission gear (23) is fixedly connected to the transmission shaft (26) and meshes with the rack (24) for transmission, the rack (24) is provided with a guide bar (25) that slides with the mounting frame (14), the end of the screw (22) is provided with a hand wheel (20), the first plate cylinder (19) and the second plate cylinder (32) have the same or different plate patterns, and the two hoppers (33) are filled with inks of the same or different colors.

2. A packaging carton printing machine according to claim 1, characterized in that: The central angle of the arc-shaped chute (7) is 30-45°.

3. A packaging carton printing machine according to claim 1, characterized in that: The transmission shaft (26) is a stepped shaft structure, and its two ends are connected to the triangular fixing frame (27) via at least two latches (35).

4. A packaging carton printing machine according to claim 1, characterized in that: The driving element (15) comprises a motor (30), a driving wheel (31), a driven wheel and a belt (29), wherein the driving wheel (31) and the driven wheel are respectively fixed on the output shaft of the motor (30) and the ink fountain roller (17), and the belt (29) is sleeved between the driving wheel (31) and the driven wheel.

5. A packaging carton printing machine according to claim 1, characterized in that: The dust removal device comprises a dust removal adsorption hood (2), a movable plate (4), a bracket (3) and an adjusting bolt (5); the movable plate (4) is slidably arranged on the bracket (3); the dust removal adsorption hood (2) is mounted on the movable plate (4); the adjusting bolt (5) is threadedly connected to the bracket (3) and is rotatably connected to the movable plate (4).

6. A packaging carton printing machine according to claim 1, characterized in that: A collecting rack (10) is provided at one end of the frame (1), a supporting plate (11) is slidably provided on the collecting rack (10), and a cylinder (12) for pushing the supporting plate (11) up and down is provided at the bottom of the collecting rack (10).

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