Color paper digital printing device

Abstract

The invention relates to the field of digital printing, and discloses a color paper digital printing device which comprises a printing machine table, a mounting plate is fixedly connected to the printing machine table, a motor is fixedly mounted on the mounting plate, an intermittent mechanism is fixedly mounted on the motor, a rotating pipe is mounted on the intermittent mechanism, a sliding pipe is mounted on the rotating pipe, and a sliding column is arranged in the sliding pipe. The sliding column is connected with the sliding pipe through a third spring, a clamping mechanism is fixedly installed on the sliding pipe, the clamping mechanism is used for clamping a color paper tube, a first adjusting mechanism is fixedly installed on the intermittent mechanism, and the first adjusting mechanism is rotationally connected with the rotating pipe. The first adjusting mechanism controls different positions on the same surface of the color paper tube to be printed; the movement of the sliding column is controlled through the first adjusting mechanism, so that the color paper tube translates at different positions on the same plane; and the second adjusting mechanism controls the latch to move out and the first gear to rotate, so that the rotation of different surfaces of the color paper tube is realized.

Description

Technical Field

[0001] The invention relates to the technical field of digital printing, and more particularly to a color paper digital printing device. Background Art

[0002] In the current color paper printing field, with the growing market demand for diversified color paper digital printing products, traditional color paper printing methods face many challenges.

[0003] With the continuous changes in the market, many printings are not limited to the printing of simple colored paper, but will gradually extend to the printing of items made of colored paper. For example, the printing of colored paper tubes used to be a cumbersome manual operation. When fixing the colored paper tubes to the printing equipment, it is usually simply through external clamps or manual support. Not only is the fixing effect poor, it is easy to cause the paper tube to shift during the printing process, affecting the printing quality, and it is impossible to ensure that all positions on the outer wall of the paper tube can be printed without obstruction.

[0004] In terms of printing position control, traditional methods are relatively limited. When printing is required at different positions of the paper roll, it is often necessary to manually disassemble the paper roll, readjust its position on the printing equipment and fix it again. The operation process is not only time-consuming and labor-intensive, but also inefficient, and it is easy to cause inaccurate printing positions due to manual operation errors. Therefore, we designed a color paper digital printing device. Summary of the invention

[0005] The present invention provides a color paper digital printing device, which solves the technical problem in the related art that when printing is required at different positions of a paper tube, it is often necessary to manually disassemble the paper tube, readjust its position on the printing equipment and fix it again, and the operation process is not only time-consuming and labor-intensive, but also inefficient, and is also prone to inaccurate printing position due to manual operation errors.

[0006] The present invention provides a color paper digital printing device, comprising a printing machine platform, a mounting plate fixedly connected to the printing machine platform, a motor fixedly installed on the mounting plate, an intermittent mechanism fixedly installed on the power output shaft of the motor, a rotating tube rotatably installed on the intermittent mechanism, a sliding tube fixedly installed on the rotating tube, a sliding column slidably connected inside the sliding tube, the sliding column is connected to the sliding tube through a third spring, a clamping mechanism fixedly installed on the sliding tube, the clamping mechanism is used to clamp a color paper roll, a first adjusting mechanism fixedly installed on the intermittent mechanism, the first adjusting mechanism is rotatably connected to the rotating tube, and when the motor drives the color paper roll to rotate, the first adjusting mechanism controls different positions on the same surface of the color paper roll to be printed; A second adjusting mechanism is fixedly installed on the mounting plate, and a first gear is fixedly installed on the rotating tube. During the process of the motor driving the colored paper tube to rotate, the second adjusting mechanism controls different surfaces of the colored paper tube to be printed.

[0007] As a further optimized solution of the present invention, the clamping mechanism includes a fixing plate, the fixing plate is fixedly connected with a sliding column, a sliding groove is formed on the fixing plate, a second screw rod is arranged inside the sliding groove, the second screw rod is rotatably connected with the fixing plate, a third bevel gear is fixedly connected to the second screw rod, a plurality of the third bevel gears are engaged, a threaded plate is threadedly connected to the second screw rod, the threaded plate is slidably connected with the fixing plate, and a limiting mechanism is fixedly connected to the threaded plate.

[0008] As a further optimized solution of the present invention, the intermittent mechanism includes a third driving disc, the third driving disc is fixedly connected with the power output shaft of the motor, a first driving disc is fixedly connected to the third driving disc, a driving column is fixedly installed on the third driving disc, a second driving disc which is matched is arranged below the first driving disc, a first rotating shaft is fixedly connected to the second driving disc, the first rotating shaft is rotatably connected with the mounting plate, a driving groove which is matched with the driving column is formed on the second driving disc, and a fourth driving disc is fixedly connected to the first rotating shaft.

[0009] As a further optimized solution of the present invention, the first adjusting mechanism includes an extension tube, the extension tube is connected to the mounting plate through a connecting rod, a first screw rod is rotatably connected inside the extension tube, a first magnetic column is threadedly connected to the first screw rod, a second bevel gear is fixedly connected to the first magnetic column, a first bevel gear is engaged with the second bevel gear, and a second rotating shaft is fixedly connected to the first bevel gear, the second rotating shaft is rotatably connected with the extension tube.

[0010] As a further optimized solution of the present invention, the first adjusting mechanism further includes an air-gathering box, the air-gathering box is fixedly connected with the fourth driving disc, a sliding rod is slidably connected to the air-gathering box, a pressing plate is fixedly connected to the top end of the sliding rod, the pressing plate is connected to the air-gathering box through a first spring, a first magnetic block is fixedly connected to the bottom end of the sliding rod, and the first magnetic block is magnetically repulsive to the first magnetic column.

[0011] As a further optimized solution of the present invention, an air outlet pipe is fixedly connected to the air-gathering box, the air outlet pipe is rotatably connected with the rotating tube, an air inlet pipe is fixedly connected to the air-gathering box, and one-way valves are installed inside both the air inlet pipe and the air outlet pipe.

[0012] As a further optimized solution of the present invention, the second adjustment mechanism includes a support rod, the support rod is fixedly connected to the mounting plate, an arc-shaped box is fixedly connected to the support rod, an arc-shaped fixing frame is fixedly connected inside the arc-shaped box, a second spring is fixedly connected to the arc-shaped fixing frame, a sliding cover is fixedly connected to the second spring, a second magnetic column is fixedly connected inside the sliding cover, a tooth is fixedly connected to the sliding cover, and an arc-shaped magnetic plate is slidably connected to the arc-shaped box.

[0013] As a further optimized solution of the present invention, the limiting mechanism includes a limiting column, two cavities are opened inside the limiting column, a through hole is penetrated through the bottom of the limiting column, a bent pipe is fixedly installed inside the limiting column, a plugging column is slidably connected inside the bent pipe, the plugging column is matched with the through hole, the plugging column is connected to the bent pipe through a fourth spring, an extrusion column is slidably connected inside the bent pipe, and a water source is filled between the plugging column and the extrusion column.

[0014] As a further optimized solution of the present invention, a second suction cup is fixedly connected to the extrusion column, and a first suction cup is fixedly installed inside the second suction cup.

[0015] As a further optimized solution of the present invention, a telescopic pipe is fixedly connected to the sliding pipe, an extension hose is fixedly connected to the telescopic pipe, and the extension hose is connected to the limiting column.

[0016] The beneficial effects of the present invention are as follows: 1. For the color paper digital printing device of the present invention, by controlling the movement of the sliding column through the first adjustment mechanism, the translation of the color paper tube at different positions on the same plane is realized; by controlling the movement out of the tooth and the rotation of the first gear through the second adjustment mechanism, the rotation of the color paper tube on different surfaces is realized; this adjustment method of translation and rotation is flexible and convenient, and can be quickly adjusted according to actual printing requirements to meet the printing requirements of different patterns and contents.

[0017] 2. For the color paper digital printing device of the present invention, the rotation angle of the first gear is determined by the number of teeth in the second adjustment mechanism and can be adjusted according to requirements; in the first adjustment mechanism, by rotating the second rotating shaft, the distance between the first magnetic column and the first magnetic block is changed, so as to adjust the magnetic force and the air volume in the sliding pipe, and further control the moving distance of the color paper tube; this fine adjustment function of angle and distance makes the printing process more flexible and diverse, and can adapt to various complex printing tasks.

[0018] 3. A color paper digital printing device according to the present invention is clamped and fixed by expanding inside a color paper tube through a clamping mechanism, which can ensure that all positions on the outer wall of the paper tube can be printed without being blocked. The design of the limiting mechanism makes the clamping process more stable and reliable. The four limiting mechanisms move closer to or away from each other, which can well adapt to color paper tubes of different sizes and achieve a firm clamping effect. Moreover, the first suction cup and the second suction cup in the limiting mechanism work simultaneously to generate a greater adsorption force, further enhancing the clamping effect on the color paper tube. This double suction cup design can not only ensure the stability of the paper tube during printing, but also effectively prevent the paper tube from shifting or deforming during printing, thus guaranteeing the printing quality and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a connection diagram of the first adjustment mechanism, the second adjustment mechanism and the mounting plate of the present invention; Figure 3 is a schematic diagram of the internal structure of the extension tube of the present invention; Figure 4 is a schematic diagram of the internal structure of the air-gathering box of the present invention; Figure 5 is a schematic diagram of the internal structure of the arc box of the present invention; Figure 6 is Figure 5 the enlarged view at A in Figure 7 is a schematic diagram of the internal structure of the sliding tube of the present invention; Figure 8 is Figure 7 the enlarged view at B in Figure 9 is a schematic diagram of the internal structure of the fixing plate of the present invention; Figure 10 is a schematic diagram of the internal structure of the elbow pipe of the present invention; Figure 11 is a schematic diagram of the structure of the sliding tube of the present invention.

[0020] In the figure: 1, printing press; 2, mounting plate; 3, motor; 401, driving column; 402, first driving disk; 403, first rotating shaft; 404, second driving disk; 405, third driving disk; 406, fourth driving disk; 501, air-gathering box; 502, connecting rod; 503, extension pipe; 504, first magnet; 505, first bevel gear; 506, second bevel gear; 507, first screw rod; 508, second rotating shaft; 509, first magnetic column; 510, air inlet pipe; 511, air outlet pipe; 512, pressing plate; 513, first spring; 514, sliding rod; 601, support rod; 602, arc-shaped box; 603, arc-shaped magnetic plate; 604, engaging teeth; 605, second magnetic column; 606, arc-shaped fixing frame; 607, second spring; 608, sliding cover; 701, limiting column; 702, extension hose; 703, telescopic pipe; 704, fixing plate; 705, sliding column; 706, sliding pipe; 707, third spring; 708, rotating pipe; 709, first gear; 710, threaded plate; 711, through hole; 712, third bevel gear; 713, first suction cup; 714, second suction cup; 715, elbow pipe; 716, extrusion column; 717, fourth spring; 718, plugging column; 719, second screw rod. Detailed implementation manners

[0021] Now, the subject matter described herein will be discussed with reference to example embodiments. It should be understood that discussing these embodiments is only to enable those skilled in the art to better understand and thus implement the subject matter described herein. Without departing from the scope of protection of the content of this specification, changes can be made to the functions and arrangements of the elements discussed. Each example can omit, substitute, or add various processes or components as needed. Additionally, the features described in some examples can also be combined in other examples.

[0022] As Figures 1 to 11 shown, a color paper digital printing device according to an embodiment of the present invention includes a printing press 1. A mounting plate 2 is fixedly connected to the printing press 1. A motor 3 is fixedly installed on the mounting plate 2. An intermittent mechanism is fixedly installed on the power output shaft of the motor 3. A rotating pipe 708 is rotatably installed on the intermittent mechanism. A sliding pipe 706 is fixedly installed on the rotating pipe 708. A sliding column 705 is slidably connected inside the sliding pipe 706. The sliding column 705 is connected to the sliding pipe 706 through a third spring 707. A clamping mechanism is fixedly installed on the sliding pipe 706. The clamping mechanism is used for clamping a color paper cylinder. A first adjusting mechanism is fixedly installed on the intermittent mechanism. The first adjusting mechanism is rotationally connected to the rotating pipe 708. When the color paper cylinder is driven to rotate by the motor 3, the first adjusting mechanism controls different positions on the same plane of the color paper cylinder to be printed. A second adjustment mechanism is fixedly installed on the mounting plate 2, and a first gear 709 is fixedly installed on the rotating tube 708. During the process of the motor 3 driving the colored paper tube to rotate, the second adjustment mechanism controls different surfaces of the colored paper tube to be printed.

[0023] The paper tube is made of paper. The paper tube made of colored paper is a colored paper tube. Many colored paper tubes need to be printed with other content. In this case, the colored paper tube needs to be sleeved on the clamping mechanism. The clamping mechanism expands inside the colored paper tube to fix the colored paper tube. After the colored paper tube is fixed, the printing machine table 1 can be controlled. The printing machine table 1 is controlled by a program controller. The program can be set in advance to cooperate with the motor 3 and the intermittent mechanism to operate together. After a colored paper tube is printed, the motor 3 will move another colored paper tube to the designated position, and the printing machine table 1 controlled by the program will print the new colored paper tube. This process will continue until all the colored paper cups held are printed. During the process of switching printing among multiple colored paper tubes, the colored paper tube can be individually controlled by the first adjustment mechanism to translate on the same plane, so as to print at different positions on the same plane of the colored paper tube without disassembling and re-fixing the position. Moreover, the second adjustment mechanism can rotate the colored paper tube so that different surfaces of the colored paper tube are printed. Finally, the first adjustment mechanism and the second adjustment mechanism can act on the colored paper tube individually or in combination, which can more diversely control the printing position of the colored paper tube, enabling it to automatically complete position changes to cope with digital printing during the same batch production process and reducing the manual replacement of the position of the colored paper cup.

[0024] Please refer to Figure 9 The clamping mechanism includes a fixing plate 704. The fixing plate 704 is fixedly connected to the sliding column 705. A chute is provided on the fixing plate 704. A second screw rod 719 is arranged inside the chute. The second screw rod 719 is rotatably connected to the fixing plate 704. A third bevel gear 712 is fixedly connected to the second screw rod 719. A plurality of third bevel gears 712 are engaged. A threaded plate 710 is threadedly connected to the second screw rod 719. The threaded plate 710 is slidably connected to the fixing plate 704. A limiting mechanism is fixedly connected to the threaded plate 710. By rotating the second screw rod 719, the four threaded plates 710 can drive the four limiting mechanisms to operate. The four limiting mechanisms either approach each other or move away from each other, so that the colored paper cup can be well clamped and fixed from the inside, ensuring that all positions on the outer wall of the colored paper cup can be printed without being blocked.

[0025] Please refer to Figure 1 、 Figure 2, the intermittent mechanism includes a third driving disk 405, the third driving disk 405 is fixedly connected to the power output shaft of the motor 3, a first driving disk 402 is fixedly connected to the third driving disk 405, a driving column 401 is fixedly installed on the third driving disk 405, a matching second driving disk 404 is arranged below the first driving disk 402, a first rotating shaft 403 is fixedly connected to the second driving disk 404, the first rotating shaft 403 is rotatably connected to the mounting plate 2, a driving groove matching the driving column 401 is formed on the second driving disk 404, and a fourth driving disk 406 is fixedly connected to the first rotating shaft 403; after the clamping mechanism clamps the colored paper cup, when the motor 3 drives the third driving disk 405 to rotate, the driving column 401 will also rotate together, the driving column 401 will make the second driving disk 404 rotate through the driving groove, and the second driving disk 404 will make the fourth driving disk 406 rotate through the first rotating shaft 403. Since it is intermittent rotation and the printing machine table 1 can be controlled to match with it, each clamped colored paper cup can have sufficient time to be printed, and a new one can be well switched for printing after printing.

[0026] Please refer to Figure 3 , Figure 4 , the first adjusting mechanism includes an extension pipe 503, the extension pipe 503 is connected to the mounting plate 2 through a connecting rod 502, a first screw rod 507 is rotatably connected inside the extension pipe 503, a first magnetic column 509 is threadedly connected to the first screw rod 507, a second bevel gear 506 is fixedly connected to the first magnetic column 509, a first bevel gear 505 is meshed with the second bevel gear 506, and a second rotating shaft 508 is fixedly connected to the first bevel gear 505, the second rotating shaft 508 is rotatably connected to the extension pipe 503; the first adjusting mechanism further includes an air-gathering box 501, the air-gathering box 501 is fixedly connected to the fourth driving disk 406, a sliding rod 514 is slidably connected to the air-gathering box 501, a pressing plate 512 is fixedly connected to the top end of the sliding rod 514, the pressing plate 512 is connected to the air-gathering box 501 through a first spring 513, a first magnetic block 504 is fixedly connected to the bottom end of the sliding rod 514, the first magnetic block 504 is magnetically repulsive to the first magnetic column 509, an air outlet pipe 511 is fixedly connected to the air-gathering box 501, the air outlet pipe 511 is rotatably connected to a rotating pipe 708, and an air inlet pipe 510 is fixedly connected to the air-gathering box 501. Check valves are installed inside both the air inlet pipe 510 and the air outlet pipe 511.

[0027] When the motor 3 drives the fourth drive disk 406 to rotate, the air-gathering box 501 on the fourth drive disk 406 will also rotate accordingly, thereby driving the first magnet 504 to rotate. When the first magnet 504 rotates to a specified position, the first magnet 504 interacts with the first magnetic column 509, so that the first magnet 504 drives the pressing plate 512 to extrude the gas in the air-gathering box 501, causing the gas to enter the inside of the sliding tube 706 and extrude the sliding column 705. In this way, the sliding column 705 will drive the color paper tube to move, changing the position of the color paper tube. Consequently, the position where the printing machine table 1 prints on the color paper tube also changes, enabling printing on different positions of the color paper tube. By rotating the second rotating shaft 508, the distance between the first magnetic column 509 and the first magnet 504 can be changed. Different distances result in different magnetic forces, and the air injected into the sliding tube 706 will also be different, thereby changing the moving distance of the color paper tube. In this way, the printing position of the color paper tube can be effectively controlled according to requirements. When the first magnetic column 509 is completely inside the extension tube 503, due to the distance issue, the first magnetic column 509 cannot act on the first magnet 504, and the position of the color paper tube will not change.

[0028] Please refer to Figure 5 、 Figure 6 , the second adjustment mechanism includes a support rod 601. The support rod 601 is fixedly connected to the mounting plate 2. An arc-shaped box 602 is fixedly connected to the support rod 601. An arc-shaped fixed frame 606 is fixedly connected inside the arc-shaped box 602. A second spring 607 is fixedly connected to the arc-shaped fixed frame 606. A sliding cover 608 is fixedly connected to the second spring 607. A second magnetic column 605 is fixedly connected inside the sliding cover 608. A toothed 604 is fixedly connected to the sliding cover 608. An arc-shaped magnetic plate 603 is slidably connected to the arc-shaped box 602. While the motor 3 drives the fourth drive disk 406 to rotate, the first gear 709 will also rotate accordingly. However, by driving the arc-shaped magnetic plate 603, since the magnetism of the arc-shaped magnetic plate 603 is different from that of the second magnetic column 605, it is possible to control whether the toothed 604 moves out of the arc-shaped box 602. In this way, when the first gear 709 rotates to a specified position, the first gear 709 will rotate due to the action of the toothed 604. This rotational force will act on the color paper tube, enabling the other surfaces of the color paper tube to be printed. Moreover, the number of the toothed 604 determines the rotation angle of the first gear 709, which can be adjusted according to requirements. Then, the adjustment of this angle can operate independently of the above-mentioned translation adjustment or in combination with it.

[0029] Please refer to Figure 7 、 Figure 10 、 Figure 11, the limiting mechanism includes a limiting column 701. There are two cavities inside the limiting column 701. A through hole 711 is formed through the bottom of the limiting column 701. A bent pipe 715 is fixedly installed inside the limiting column 701. A plugging column 718 is slidably connected inside the bent pipe 715. The plugging column 718 is matched with the through hole 711. The plugging column 718 is connected to the bent pipe 715 through a fourth spring 717. An extrusion column 716 is slidably connected inside the bent pipe 715. A second suction cup 714 is fixedly connected to the extrusion column 716. A first suction cup 713 is fixedly installed inside the second suction cup 714. The space between the plugging column 718 and the extrusion column 716 is filled with water. When the threaded plate 710 is driven by the second screw rod 719 to make the limiting column 701 contact and fix with the colored paper cup, due to the limitation of the cup wall of the colored paper cup, the first suction cup 713 and the second suction cup 714 will return to the inside of the limiting column 701 and adsorb to the cup wall of the colored paper cup. The first suction cup 713 and the second suction cup 714 work simultaneously, which can generate a greater adsorption force, so as to adsorb the object more firmly. A telescopic pipe 703 is fixedly connected to the sliding pipe 706. An extension hose 702 is fixedly connected to the telescopic pipe 703. The extension hose 702 is connected to the limiting column 701, and the connection position of the extension hose 702 is below the first suction cup 713. When the air pipe enters the gas and extrudes the sliding column 705 to move, the gas will enter the limiting column 701. However, due to the plugging of the plugging column 718, the gas loss can be avoided. But when the colored paper cup is taken off after printing, the plugging of the through hole 711 by the plugging column 718 will be cancelled, so that the gas will be released, making the sliding pipe 706 communicate with the clamping mechanism and return to its original position, which is convenient for the next use.

[0030] Working principle: First, put the colored paper tube on the clamping mechanism, rotate the second screw rod 719, so that the four threaded plates 710 drive the limiting mechanism to operate. The limiting mechanisms move closer to or away from each other, and fix the colored paper tube from the inside to ensure that its outer wall is unobstructed. The motor 3 drives the third driving disc 405 to rotate, driving the driving column 401 to rotate. The driving column 401 makes the second driving disc 404 rotate through the driving groove, and then the second driving disc 404 makes the fourth driving disc 406 rotate intermittently through the first rotating shaft 403. At the same time, control the printing machine table 1 to ensure that each colored paper tube has sufficient printing time and can switch printing; during this process, if it is necessary to control the printing at different positions on the same plane of the colored paper tube, when the motor 3 drives the fourth driving disc 406 to rotate, the air-gathering box 501 rotates accordingly. The first magnet 504 rotates to a specified position and interacts with the first magnetic column 509, driving the pressing plate 512 to squeeze the gas in the air-gathering box 501. The gas enters the sliding tube 706 and squeezes the sliding column 705. The sliding column 705 drives the colored paper tube to move, changing the printing position. Rotating the second rotating shaft 508 can change the distance between the first magnetic column 509 and the first magnet 504, controlling the moving distance of the colored paper tube; if it is necessary to control the printing on different surfaces of the colored paper tube, the motor 3 drives the fourth driving disc 406 to rotate, and the first gear 709 rotates accordingly, driving the arc-shaped magnetic plate 603. According to the magnetic difference between the arc-shaped magnetic plate 603 and the second magnetic column 605, it is controlled whether the engaging teeth 604 move out of the arc-shaped box 602. When the first gear 709 rotates to a specified position and is affected by the engaging teeth 604, the rotational force makes the colored paper tube rotate, realizing printing on different surfaces. The number of engaging teeth 604 can adjust the rotation angle of the first gear 709, and the adjustment of the plane position of the colored paper tube can be operated alone or in combination; in addition, in the limiting mechanism, when the threaded plate 710 drives the limiting column 701 to contact and fix the colored paper tube, the first and second suction cups 714 adsorb the cup wall due to the cup wall limit, and the adsorption force is stronger. When the sliding column 705 moves and gas enters the limiting column 701, the plugging column 718 plugs to prevent gas loss. After the colored paper tube is printed and removed, the plugging column 718 cancels the plugging, releases the gas, and the sliding tube 706 and the clamping mechanism return to their original positions for convenient next use.

[0031] The above describes the embodiments of the present invention, but these embodiments are not limited to the above specific implementation manners. The above specific implementation manners are merely illustrative rather than restrictive. Under the inspiration of this embodiment, those of ordinary skill in the art can also make many forms, all of which fall within the protection scope of this embodiment.

Claims

1. A color paper digital printing device, comprising a printing machine (1), characterized in that: The printing machine table (1) is fixedly connected to a mounting plate (2), a motor (3) is fixedly mounted on the mounting plate (2), an intermittent mechanism is fixedly mounted on the power output shaft of the motor (3), a rotating tube (708) is rotatably mounted on the intermittent mechanism, a sliding tube (706) is fixedly mounted on the rotating tube (708), a sliding column (705) is slidably connected inside the sliding tube (706), the sliding column (705) is connected to the sliding tube (706) via a third spring (707), a clamping mechanism is fixedly mounted on the sliding tube (706), the clamping mechanism is used to clamp a colored paper roll, a first adjusting mechanism is fixedly mounted on the intermittent mechanism, the first adjusting mechanism is rotatably connected to the rotating tube (708), and when the motor (3) drives the colored paper roll to rotate, the first adjusting mechanism controls different positions on the same surface of the colored paper roll to be printed; A second adjustment mechanism is fixedly mounted on the mounting plate (2), and a first gear (709) is fixedly mounted on the rotating tube (708). The second adjustment mechanism controls different surfaces of the colored paper tube to be printed when the motor (3) drives the colored paper tube to rotate.

2. The color paper digital printing device according to claim 1, characterized in that: The clamping mechanism comprises a fixed plate (704), the fixed plate (704) is fixedly connected to the sliding column (705), the fixed plate (704) is provided with a sliding groove, a second screw rod (719) is arranged inside the sliding groove, the second screw rod (719) is rotatably connected to the fixed plate (704), a third bevel gear (712) is fixedly connected to the second screw rod (719), a plurality of the third bevel gears (712) are meshed, a threaded plate (710) is threadedly connected to the second screw rod (719), the threaded plate (710) is slidably connected to the fixed plate (704), and a limiting mechanism is fixedly connected to the threaded plate (710).

3. The color paper digital printing device according to claim 1, characterized in that: The intermittent mechanism comprises a third drive disk (405), the third drive disk (405) is fixedly connected to the power output shaft of the motor (3), the first drive disk (402) is fixedly connected to the third drive disk (405), a drive column (401) is fixedly mounted on the third drive disk (405), a matching second drive disk (404) is arranged below the first drive disk (402), a first rotating shaft (403) is fixedly connected to the second drive disk (404), the first rotating shaft (403) is rotatably connected to the mounting plate (2), a drive groove matching the drive column (401) is provided on the second drive disk (404), and a fourth drive disk (406) is fixedly connected to the first rotating shaft (403).

4. The color paper digital printing device according to claim 1, characterized in that: The first adjustment mechanism comprises an extension tube (503), wherein the extension tube (503) is connected to the mounting plate (2) via a connecting rod (502), a first screw rod (507) is rotatably connected inside the extension tube (503), a first magnetic column (509) is threadedly connected to the first screw rod (507), a second bevel gear (506) is fixedly connected to the first magnetic column (509), the second bevel gear (506) is meshed with the first bevel gear (505), a second rotating shaft (508) is fixedly connected to the first bevel gear (505), and the second rotating shaft (508) is rotatably connected to the extension tube (503).

5. The color paper digital printing device according to claim 3, characterized in that: The first regulating mechanism further comprises a gas gathering box (501), wherein the gas gathering box (501) is fixedly connected to the fourth driving disk (406), a sliding rod (514) is slidably connected to the gas gathering box (501), a pressure plate (512) is fixedly connected to the top of the sliding rod (514), the pressure plate (512) is connected to the gas gathering box (501) via a first spring (513), and a first magnetic block (504) is fixedly connected to the bottom of the sliding rod (514), and the first magnetic block (504) and the first magnetic column (509) are magnetically repelled from each other.

6. The color paper digital printing device according to claim 5, characterized in that: The gas collection box (501) is fixedly connected to an air outlet pipe (511), and the air outlet pipe (511) is rotatably connected to the rotating tube (708). The gas collection box (501) is fixedly connected to an air inlet pipe (510), and both the air inlet pipe (510) and the air outlet pipe (511) are installed with a one-way valve.

7. The color paper digital printing device according to claim 1, characterized in that: The second adjustment mechanism comprises a support rod (601), the support rod (601) being fixedly connected to the mounting plate (2), an arc box (602) being fixedly connected to the support rod (601), an arc fixing frame (606) being fixedly connected inside the arc box (602), a second spring (607) being fixedly connected to the arc fixing frame (606), a sliding cover (608) being fixedly connected to the second spring (607), a second magnetic column (605) being fixedly connected inside the sliding cover (608), a latching tooth (604) being fixedly connected to the sliding cover (608), and an arc magnetic plate (603) being slidably connected to the arc box (602).

8. The color paper digital printing device according to claim 2, characterized in that: The limiting mechanism comprises a limiting column (701), wherein two cavities are provided inside the limiting column (701), a through hole (711) is provided through the bottom of the limiting column (701), a bent pipe (715) is fixedly installed inside the limiting column (701), a blocking column (718) is slidably connected inside the bent pipe (715), the blocking column (718) matches the through hole (711), the blocking column (718) is connected to the bent pipe (715) via a fourth spring (717), an extrusion column (716) is slidably connected inside the bent pipe (715), and a water source is filled between the blocking column (718) and the extrusion column (716).

9. The color paper digital printing device according to claim 8, characterized in that: The squeezing column (716) is fixedly connected to a second suction cup (714), and the first suction cup (713) is fixedly installed inside the second suction cup (714).

10. The color paper digital printing device according to claim 9, characterized in that: The sliding tube (706) is fixedly connected to a telescopic tube (703), the telescopic tube (703) is fixedly connected to an extension hose (702), and the extension hose (702) is connected to the limiting column (701).

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