Automatic rotating digital printing machine

Abstract

The utility model discloses an automatic rotation digital printing machine which comprises a base, an air suction unit installed on the base and a printing trolley installed above the air suction unit in a sliding mode, a cross beam stretching across the air suction unit is fixed on the base, and a sliding base is arranged on the lower side edge of the cross beam in a sliding mode. The automatic rotating digital printing machine comprises a printing trolley, a sliding base is arranged on the printing trolley, a power rotating shaft is fixed to the middle of the upper side of the printing trolley, the power rotating shaft is rotatably installed on the sliding base, and a locking device is arranged on the upper side of the printing trolley so as to lock the angle formed after the printing trolley rotates. The whole printing trolley is driven by the power rotating shaft to automatically rotate below the sliding base, and therefore automatic switching can be achieved compared with a manual rotating mode in the prior art.

Description

Technical Field

[0001] This utility model relates to a printing machine, and more specifically to an automatic rotary digital printing machine. Background Technology

[0002] Existing digital printing presses primarily use scanning and direct-to-garment printing for corrugated paper. These presses typically employ a rotating carriage positioned above the suction unit, with the printhead housed within it. The rotation of this carriage allows for switching between scanning and direct-to-garment modes. Currently, the rotating carriage is manually operated. A side beam is mounted above the suction unit, and a base slides along this beam. The carriage is then mounted on the base via a rotating shaft. Switching between scanning and direct-to-garment modes is achieved manually. However, this manual method suffers from low switching efficiency. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an automatic rotary digital printing machine with high efficiency in switching between scanning and direct inkjet modes.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automatic rotary digital printing machine, comprising a base, a suction unit mounted on the base, and a printing carriage that can slide above the suction unit. A crossbeam spanning the suction unit is fixed on the base, and a sliding base is slidably provided on the lower side of the crossbeam. A power shaft is fixed to the upper middle part of the printing carriage, and the power shaft is rotatably mounted on the sliding base. A locking device is also provided on the upper side of the printing carriage to lock the angle of the printing carriage after rotation.

[0005] As a further improvement of this utility model, the printing carriage includes a housing, a printhead array mounted on the lower side of the housing, an ink cartridge and a thermostat mounted inside the housing. The ink cartridge, thermostat and printhead array are interconnected by pipes to heat the ink output from the ink cartridge and send it into the printhead array, so that the ink is output at a constant temperature.

[0006] As a further improvement of this utility model, the locking device includes a magnetic locking block and two locking electromagnets. The two locking electromagnets are fixedly installed on the upper side of the printing carriage, and the magnetic locking block is fixedly installed on the lower side of the sliding base, so that after the printing carriage rotates into position, one of the locking electromagnets magnetically attracts the magnetic locking block to lock and position the printing carriage.

[0007] As a further improvement of this utility model, several mounting rods are fixed on the crossbeam, and a mounting frame is fixed on the base. The ends of the several mounting rods are mounted on the mounting frame in a liftable manner to drive the crossbeam to move up and down above the base.

[0008] As a further improvement of this utility model, a lifting angle steel is installed on the side of the mounting frame in a height-adjustable manner. The end of the mounting rod is fixed to the upper side of the lifting angle steel by bolts. The upper side of the mounting frame is provided with a driving device for driving the lifting angle steel to move up and down.

[0009] As a further improvement of this utility model, the driving device includes a drive motor and several bevel gear lifters. The several bevel gear lifters are respectively installed on the mounting frame at the position relative to the lifting angle steel. Each bevel gear lifter has an input shaft and an output shaft. The input shaft is linked with the drive motor, and the output shaft passes downward through the mounting frame and is threadedly connected to the lifting angle steel.

[0010] As a further improvement of this utility model, an ink stack is fixedly installed on one side of the base, and an ink collection box is provided on one side of the ink stack. An ink suction device is provided on the base near the ink collection box. The ink stack, the ink collection box and the ink suction device are connected by a pipe so that the ink stack can draw ink droplets on the lower side of the printing carriage into the ink collection box.

[0011] As a further improvement of this utility model, the ink stack includes an ink stack base, several cleaning pads, and several ink extraction pads. The cleaning pads are arranged in a row near the side of the ink stack base, and the ink extraction pads are arranged on the ink stack base to absorb ink droplets on the printing carriage through the cleaning pads and to provide moisture for the printing carriage by the ink extraction pads.

[0012] As a further improvement of this utility model, the suction unit includes a belt and a wind box disposed inside the belt. The upper side of the wind box is open. Several through holes are provided on the belt. A duct is inserted inside the wind box. One end of the duct extends to the inner wall of the wind box and is then closed. The other end is connected to an external fan through a duct adapter. The wind box is provided with two or more partitions to divide the interior of the wind box into suction slots. Ventilation holes are provided on the top and side surfaces of the duct within the suction slots.

[0013] As a further improvement of this utility model, it also includes a leading edge paper feeding device. The leading edge paper feeding device is located above the position of the base relative to the inlet end of the suction unit to guide the corrugated paper into the suction unit. The leading edge paper feeding device includes a leading edge base and a leading paper stop assembly. The upper side of the leading edge base is rotatably provided with several rollers to roll and drive the corrugated paper into the suction unit. The leading paper stop assembly is located between the leading edge base and the suction unit to intermittently block the corrugated paper, so that the corrugated paper is fed into the suction unit one sheet at a time.

[0014] The beneficial effects of this utility model are as follows: by setting up the crossbeam, the printing carriage can be slidably installed above the suction unit. At the same time, by using a method in which the middle of the printing carriage is rotatably connected to the sliding base, the automatic rotation switching of the printing carriage can be realized. Compared with the existing technology that uses a side crossbeam and a side flipping method, the switching efficiency is higher. In addition, by using a power shaft installed in the middle of the printing carriage, the load on the printing carriage is more balanced. Compared with the existing technology that uses a single-side flipping method, the service life is longer. Attached Figure Description

[0015] Figure 1 This is an overall structural diagram of the automatic rotary digital printing machine of this utility model;

[0016] Figure 2 for Figure 1 Overall structural diagram of the printing trolley;

[0017] Figure 3 for Figure 1 Overall structural diagram of the middle crossbeam section;

[0018] Figure 4 for Figure 1 Overall structural diagram of the middle crossbeam lifting section;

[0019] Figure 5 for Figure 1 Overall structural diagram of Zhongmo Stack;

[0020] Figure 6 for Figure 5 Overall structural diagram of the cleaning pad;

[0021] Figure 7 for Figure 1 Overall structural diagram of the central suction unit;

[0022] Figure 8 for Figure 7 Overall structural diagram of the middle air box;

[0023] Figure 9 for Figure 1 Overall structural diagram of the leading edge paper feed device;

[0024] Figure 10 for Figure 9 Overall structural diagram of the front paper stop assembly. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0026] Reference Figure 1As shown, an automatic rotary digital printing machine of this embodiment includes a base 1, a suction unit 2 mounted on the base 1, and a printing carriage 3 slidably mounted above the suction unit 2. A crossbeam 4 spanning the suction unit 2 is fixed on the base 1. A sliding base 5 is slidably mounted on the lower side of the crossbeam 4. A power shaft 31 is fixed to the upper center of the printing carriage 3. The power shaft 31 is rotatably mounted on the sliding base 5. A locking device 32 is provided on the upper side of the printing carriage 3 to lock the angle of rotation of the printing carriage 3. During printing, the sliding base 5 slides along the crossbeam 4 above the suction unit 2, thereby driving the translation of the printing carriage 3. When the printing carriage 3 needs to change modes, a combination of the power shaft 31 and the locking device 32 is used, with a motor mounted on the power shaft 31 driving the printing carriage 3 to slide. The printing carriage 3 rotates below the base 5, achieving automated rotation switching compared to the manual rotation switching in the prior art. Furthermore, compared to the side-flipping method in the prior art, the rotation of the printing carriage 3 is more stable and reliable, with less centrifugal force on the rotating power shaft, resulting in a longer lifespan for the power shaft. In addition, the locking device 32 in this embodiment can employ both internal and external locking methods. Internal locking involves setting the power source of the power shaft 31 as a servo motor and using the servo motor's angle locking mechanism. Alternatively, external locking can be achieved by setting a corresponding locking and unlocking structure on the upper side of the printing carriage 3. A combination of both methods can also be used to improve the stability of the printing carriage 3 during operation. Regardless of the method, automated rotation switching of the printing carriage 3 can be achieved.

[0027] Furthermore, the printing carriage 3 includes a housing 33, a printhead array 34 mounted on the lower side of the housing 33, an ink cartridge 35 mounted inside the housing 33, and a thermostat. The ink cartridge 35, the thermostat, and the printhead array 34 are interconnected by pipes to heat the ink output from the ink cartridge 35 before sending it into the printhead array 34, thereby ensuring constant ink temperature output. Compared to the prior art which does not employ heating, the ink's viscosity can be reduced after heating and temperature control, avoiding problems such as poor ink flow and mismatched printing waveforms, resulting in smoother ink output from the printhead array 34.

[0028] Furthermore, the thermostat includes an input pipe and an output pipe, both of which are connected to an external constant temperature water device. A temperature-controlled U-shaped tube is installed inside the ink cartridge 35. The input and output pipes are connected to the temperature-controlled U-shaped tube inside the ink cartridge 35 via pipes, so that constant temperature water enters the temperature-controlled U-shaped tube inside the ink cartridge 35, circulates, and then returns to the external constant temperature water device through the output pipe. By circulating hot water into the temperature-controlled U-shaped tube to heat the ink, more uniform heating of the ink can be achieved, avoiding problems caused by uneven ink temperature. When the temperature is high, cold water can be used to cool it down, thus achieving constant temperature control in a simple and effective way.

[0029] Furthermore, this embodiment provides a locking device 32, which includes a magnetic locking block 322 and two locking electromagnets 321. The two locking electromagnets 321 are fixedly installed on the upper side of the printing carriage 3, and the magnetic locking block 322 is fixedly installed on the lower side of the sliding base 5. After the printing carriage 3 rotates into position, one of the locking electromagnets 321 magnetically attracts the magnetic locking block 322 to lock and position the printing carriage 3. On the one hand, the locking electromagnet 321 and the magnetic locking block 322 are locked by magnetic attraction. Compared with the traditional mechanical locking structure, its response speed is faster, and the locking action can be completed quickly at the moment the printing carriage 3 rotates into position, which greatly improves work efficiency. On the other hand, the magnetic attraction method avoids wear caused by mechanical contact, extends the service life of the locking device 32, and reduces maintenance costs.

[0030] Furthermore, this embodiment provides a sliding base 5 structure as shown below. The sliding base 5 includes a base plate 51 and several base sliders 52. The several base sliders 52 are fixedly installed on the upper side of the base plate 51. A slide rail 41 is fixed to the lower side of the crossbeam 4. The several base sliders 52 are slidably arranged on the slide rail 41 so that the base plate 51 is slidably positioned below the crossbeam 4. A linear motor stator 42 is also fixed on the crossbeam 4 near the slide rail 41, parallel to the slide rail 41. A linear motor mover 53 is provided on the upper side of the base plate 51 below the linear motor stator 42. When the linear motor mover 53 is energized, it generates an electromagnetic interaction with the linear motor stator 42, driving the base plate 51 to slide on the slide rail 41 via the base sliders 52. This achieves precise and stable sliding of the base plate 51 below the crossbeam 4.

[0031] Furthermore, this embodiment provides a crossbeam 4 structure, on which several mounting rods 43 are fixed. A mounting frame 11 is fixed on the base 1. The ends of the mounting rods 43 are flexibly mounted on the mounting frame 11 to move the crossbeam 4 up and down above the base 1. By changing the mounting height of the mounting rods 43 on the mounting frame 11, the lifting and lowering of the crossbeam 4 is achieved. The height of the crossbeam 4 can be adjusted according to actual working needs, improving the applicability of the equipment.

[0032] Furthermore, this embodiment provides a structure for driving the crossbeam 4 to move up and down. A lifting angle steel 12 is movably mounted on the side of the mounting frame 11. The end of the mounting rod 43 is bolted to the upper side of the lifting angle steel 12. The upper side of the mounting frame 11 is provided with a driving device 13 for driving the lifting angle steel 12 to move up and down. The driving device 13 drives the lifting angle steel 12 to move up and down, thereby driving the mounting rod 43 and the crossbeam 4 to move up and down. The structure is simple, easy to operate and maintain, and can effectively control the raising and lowering of the crossbeam 4.

[0033] Furthermore, this embodiment provides a driving device 13, which includes a drive motor 131 and a plurality of bevel gear lifters 132. Each bevel gear lifter 132 is installed one-to-one with the mounting frame 11 at a position relative to the lifting angle steel 12. Each bevel gear lifter 132 has an input shaft and an output shaft. The input shaft is linked to the drive motor 131, and the output shaft passes downward through the mounting frame 11 and is threadedly connected to the lifting angle steel 12. The drive motor 131 drives the input shaft of the bevel gear lifter 132 to rotate, and through bevel gear transmission, causes the output shaft to rotate. Because the output shaft is threadedly connected to the lifting angle steel 12, the lifting angle steel 12 is raised or lowered. Simultaneously, the transmission of the bevel gear lifters 132 achieves smooth and precise lifting control and can withstand a large load.

[0034] Furthermore, the bevel gear lift 132 also has a linkage shaft. There are four bevel gear lifts 132, located at the four corners of the mounting frame 11. The drive motor 131 is positioned between two bevel gear lifts 132, coaxially fixed to the input shafts of the two bevel gear lifts 132 via a gearbox. The linkage shafts of the other two bevel gear lifts 132 are coaxially connected to the linkage shafts of the two bevel gear lifts 132 located on one side of the drive motor 131. The drive motor 131 drives two bevel gear lifts 132 via the gearbox, and these two bevel gear lifts 132 then drive the other two bevel gear lifts 132 synchronously via the linkage shafts. This ensures the synchronous operation of the four bevel gear lifts 132, allowing the lifting angle steel 12 to rise and fall smoothly and preventing tilting.

[0035] Furthermore, an ink stack 6 is fixedly installed on one side of the base 1, and an ink collection box 61 is provided on one side of the ink stack 6. An ink suction device 62 is provided on the base 1 near the ink collection box 61. The ink stack 6, ink collection box 61, and ink suction device 62 are connected by a pipe to draw ink droplets from the underside of the printing carriage 3 into the ink collection box 61. The ink suction device 62 generates suction, causing the ink stack 6 to draw ink droplets from the printing carriage 3 through the pipe and transport them to the ink collection box 61. Timely cleaning of the ink in the printing carriage 3 when the machine is stopped ensures printing quality and prevents color bleeding caused by manual wiping.

[0036] Furthermore, this embodiment provides the following ink stack 6 structure, which includes an ink stack base 63, a plurality of cleaning pads 64, and a plurality of ink extraction pads 65. The plurality of cleaning pads 64 are arranged in a row near the side of the ink stack base 63, and the plurality of ink extraction pads 65 are arranged on the ink stack base 63. The ink extraction pads 65 provide moisture retention and ink absorption for the printing carriage 3, while the cleaning pads 64 clean the ink droplets remaining on the printing carriage 3 after ink absorption. The ink extraction pads 65 rely on the suction generated by the ink absorption device 62 to absorb ink droplets. The number and position of the ink extraction pads 65 correspond one-to-one with the number and position of the printhead array 34. They absorb the residual ink in the printhead array 34 after printing, and then the cleaning pads 64 further clean the residual ink droplets on the surface of the printhead array 34 after absorption.

[0037] Furthermore, this embodiment provides a cleaning pad 64 structure, wherein the upper side of the cleaning pad 64 is provided with an ink-absorbing groove 641, and the bottom of the ink-absorbing groove 641 is provided with an oblong hole communicating with the ink collection box 61. The ink-absorbing groove 641 is elongated, and its cross-section is set in an inverted trapezoid. The ink-absorbing groove 641 increases the contact area with the ink droplets, and the inverted trapezoidal cross-section facilitates the sliding of ink droplets, which are then transported to the ink collection box 61 through the oblong hole. This improves the ink absorption efficiency and ensures smooth ink droplet recovery.

[0038] Furthermore, this embodiment provides an ink extraction pad 65 structure, wherein each side of the upper surface of the ink extraction pad 65 is provided with a blocking edge 651, the blocking edges 651 being connected end to end to form a groove structure on the upper surface of the ink extraction pad 65. The groove structure formed by the blocking edges 651 helps to maintain the humidity on the ink extraction pad 65. This improves the moisture retention effect of the printing carriage 3, and at the same time, enhances the sealing effect between the upper surface of the ink extraction pad 65 and the printhead during the ink extraction process, thereby enhancing the absorption of residual ink in the printhead array 34.

[0039] Furthermore, this embodiment provides the following suction unit 2 structure, which includes a belt 21 and an air box 22 disposed within the belt 21. The upper side of the air box 22 is open, and the belt 21 has several through holes. An air duct 23 passes through the air box 22, with one end extending to the inner wall of the air box 22 and then closed, and the other end connected to an external fan via an air duct adapter. The air box 22 has two or more partitions 24 dividing the interior into suction slots. Ventilation holes are provided on the top and side surfaces of the air duct 23 within the suction slots. The external fan draws air from the air box 22 through the air duct 23 to generate negative pressure, thereby sucking up the corrugated paper on the suction unit 2. This ensures the stability of the suction unit 2 during corrugated paper printing. Simultaneously, the structure of the air duct 23 running through the entire air box 23 enhances the support strength of the top of the air box 22, allowing it to accommodate corrugated paper with greater weight.

[0040] Furthermore, this embodiment provides a partition 24 structure, which includes a plate 241 and a slide rod 242. Both ends of the slide rod 242 are fixedly mounted on the inner wall of the air box 22. The plate 241 is slidably disposed on the slide rod 242, allowing it to slide relative to, opposite to, or in the same direction within the air box 22, thereby changing the size and position of the suction channel. By moving the position of the plate 241 on the slide rod 242, the size and position of the suction channel are changed, thus adjusting the direction and intensity of the suction. This allows for flexible adjustment of the suction state of the air box 22 according to the corrugated paper, ensuring reliability during printing.

[0041] Furthermore, this embodiment provides a structure to drive the movement of the partition 24, wherein a lead screw is rotatably inserted inside the bellows 22, and a lead screw nut is provided on the partition 24. The lead screw nut is fitted onto the lead screw and threadedly connected to it. Rotating the lead screw causes the lead screw nut to move the partition 24 on the slide bar 242. This achieves precise control of the movement of the partition 24 and simplifies operation.

[0042] Furthermore, a plurality of bellows support rods 25 are arranged on the upper side of the bellows 22, and the plurality of bellows support rods 25 form a fence structure on the upper side of the bellows. The fence structure formed by the bellows support rods 25 supports the belt 21, preventing the belt 21 from sinking due to force and enhancing the supporting force of the bellows 22.

[0043] Furthermore, the automatic rotary digital printing press of this embodiment also includes a leading edge paper feeding device 7. The leading edge paper feeding device 7 is positioned above the entry end of the base 1 relative to the suction unit 2 to guide the corrugated paper into the suction unit 2. The leading edge paper feeding device 7 includes a leading edge base 71 and a front paper stop assembly 72. The upper side of the leading edge base 71 is rotatably equipped with several rollers 73 to roll and drive the corrugated paper into the suction unit 2. The front paper stop assembly 72 is positioned between the leading edge base 71 and the suction unit 2 to intermittently block the corrugated paper, allowing the corrugated paper to be fed into the suction unit 2 sheet by sheet. The rotation of the rollers 73 drives the corrugated paper forward, while the intermittent blocking by the front paper stop assembly 72 achieves sheet-by-sheet feeding of the corrugated paper. This ensures that the corrugated paper enters the suction unit 2 accurately and sheet by sheet, avoiding paper jams.

[0044] Furthermore, this embodiment provides a front paper stop assembly 72, which includes a side baffle 721, a middle baffle 722, and a drive assembly 723 for driving the middle baffle 722 to move up and down. The drive assembly 723 includes a drive shaft 7231 rotatably mounted on the middle baffle 722. A lifting wheel 7232 is eccentrically fitted onto the drive shaft 7231 relative to the middle baffle 722. Two receiving plates 7233 are fixedly spaced vertically near the upper end of the middle baffle 722, and the lifting wheel 7232 is housed between the two receiving plates 7233. Rotation of the drive shaft 7231 drives the eccentric lifting wheel 7232 to rotate, causing the lifting wheel 7232 to move between the two receiving plates 7233, thereby driving the middle baffle 722 to move up and down. This achieves automatic lifting of the middle baffle 722, effectively controlling the feeding rhythm of the corrugated paper, while maintaining a simple overall structure that is easy to implement.

[0045] Furthermore, this embodiment also provides a structure in which the side baffle 721 and the middle baffle 722 are horizontally adjustable. Specifically, the front paper guide assembly 72 further includes a translational slide rail 724 and a translational lead screw 725. The translational slide rail 724 and the translational lead screw 725 are arranged side by side between the front edge base 71 and the suction unit 2. Both the side baffle 721 and the middle baffle 722 are slidably mounted on the translational slide rail 724 and are threadedly driven by the translational lead screw 725. By rotating the translational lead screw 725, the side baffle 721 and the middle baffle 722 can be moved horizontally on the translational slide rail 724, adjusting the distance between them. This allows the position of the side baffle 721 and the middle baffle 722 to be adjusted according to the width of the corrugated paper, improving the adaptability of the equipment to corrugated paper of different specifications.

[0046] In summary, the automatic rotary digital printing machine of this embodiment provides a sliding track for the printing carriage 3 through the crossbeam 4, and realizes the rotation switching of the printing carriage 3 through the power shaft 31. Compared with the printing carriage 3 solution in the prior art, this can realize automatic rotation switching, and the switching is more stable and reliable.

[0047] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An automatic rotary digital printing machine, comprising a base (1), a suction unit (2) mounted on the base (1), a printing carriage (3) slidably mounted above the suction unit (2), and a leading edge paper feed device (7), wherein the leading edge paper feed device (7) is disposed above the base (1) relative to the entry end of the suction unit (2) to guide corrugated paper into the space above the suction unit (2), characterized in that: A crossbeam (4) spanning the suction unit (2) is fixed on the base (1). A sliding base (5) is slidably provided on the lower side of the crossbeam (4). A power shaft (31) is fixed on the upper middle part of the printing carriage (3). The power shaft (31) is rotatably mounted on the sliding base (5). A locking device (32) is also provided on the upper side of the printing carriage (3) to lock the angle of the printing carriage (3) after rotation.

2. The automatic rotary digital printing machine according to claim 1, characterized in that: The printing carriage (3) includes a housing (33), a printhead array (34) mounted on the lower side of the housing (33), an ink cartridge (35) mounted inside the housing (33), and a thermostat. The ink cartridge (35), the thermostat, and the printhead array (34) are interconnected by pipes to heat the ink output from the ink cartridge (35) and send it into the printhead array (34) so ​​that the ink is output at a constant temperature.

3. The automatic rotary digital printing machine according to claim 1, characterized in that: The locking device (32) includes a magnetic locking block (322) and two locking electromagnets (321). The two locking electromagnets (321) are fixedly installed on the upper side of the printing carriage (3), and the magnetic locking block (322) is fixedly installed on the lower side of the sliding base (5). After the printing carriage (3) is rotated into position, one of the locking electromagnets (321) magnetically attracts the magnetic locking block (322) to lock and position the printing carriage (3).

4. The automatic rotary digital printing machine according to any one of claims 1 to 3, characterized in that: Several mounting rods (43) are fixed on the crossbeam (4), and a mounting frame (11) is fixed on the base (1). The ends of the several mounting rods (43) are mounted on the mounting frame (11) in a liftable manner, so as to drive the crossbeam (4) to move up and down above the base (1).

5. The automatic rotary digital printing machine according to claim 4, characterized in that: The mounting bracket (11) has a lifting angle steel (12) that can be raised and lowered on its side. The end of the mounting rod (43) is fixed to the upper side of the lifting angle steel (12) by bolts. The upper side of the mounting bracket (11) is provided with a driving device (13) for driving the lifting angle steel (12) to rise and fall.

6. The automatic rotary digital printing machine according to claim 5, characterized in that: The drive device (13) includes a drive motor (131) and a plurality of bevel gear lifters (132). The plurality of bevel gear lifters (132) are respectively installed on the mounting frame (11) at the position relative to the lifting angle steel (12). The bevel gear lifter (132) has an input shaft and an output shaft. The input shaft is linked with the drive motor (131), and the output shaft passes downward through the mounting frame (11) and is threadedly connected to the lifting angle steel (12).

7. The automatic rotary digital printing press according to any one of claims 1 to 3, characterized in that: An ink stack (6) is fixedly installed on one side of the base (1). An ink collection box (61) is provided on one side of the ink stack (6). An ink suction device (62) is provided on the base (1) near the ink collection box (61). The ink stack (6), the ink collection box (61) and the ink suction device (62) are connected by a pipe so that the ink stack (6) can suck the ink droplets on the lower side of the printing carriage (3) into the ink collection box (61).

8. The automatic rotary digital printing machine according to claim 7, characterized in that: The ink stack (6) includes an ink stack base (63), several cleaning pads (64), and several ink extraction pads (65). The cleaning pads (64) are arranged in a row on the side of the ink stack base (63), and the ink extraction pads (65) are arranged on the ink stack base (63) to provide moisture and ink absorption for the printing carriage (3) through the ink extraction pads (65). The cleaning pads (64) clean the ink droplets remaining on the printing carriage (3) after ink absorption.

9. The automatic rotary digital printing press according to any one of claims 1 to 3, characterized in that: The suction unit (2) includes a belt (21) and a blower box (22) set inside the belt (21). The upper side of the blower box (22) is open. Several through holes are opened on the belt (21). A duct (23) is installed inside the blower box (22). One end of the duct (23) extends to the inner wall of the blower box (22) and is then closed. The other end is connected to an external fan through a duct adapter. Two or more partitions (24) are provided inside the blower box (22) to divide the interior of the blower box (22) into suction slots. Ventilation holes are opened on the top and side surfaces of the duct (23) inside the suction slots.

10. The automatic rotary digital printing press according to any one of claims 1 to 3, characterized in that: The leading edge paper feeding device (7) includes a leading edge base (71) and a leading paper stop assembly (72). The upper side of the leading edge base (71) is rotatably provided with several rollers (73) to roll and drive the corrugated paper into the suction unit (2). The leading paper stop assembly (72) is located between the leading edge base (71) and the suction unit (2) to intermittently block the corrugated paper, so that the corrugated paper is fed into the suction unit (2) one sheet at a time.

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