Printing method of digital printing machine for sheet-fed thin paper

Abstract

The invention relates to the technical field of printing machines, in particular to a printing method of a single-sheet thin paper digital printing machine, which comprises the following steps: S1, performing electrostatic treatment on thin paper to enhance the stability and controllability of the thin paper in the printing process; s2, the thin paper subjected to static electricity removal treatment is stacked and placed in a paper supply device; s3, accurately printing according to preset patterns or characters by adopting a digital printing technology; s4, an automatic paper collecting device is used for collecting the printed paper, and sorting and stacking are conducted; and S5, cutting, folding and other follow-up treatment are conducted on the printed matter according to needs, so that different use requirements are met. Compared with the prior art, the printing method of the digital printing machine for the single thin paper has the beneficial effects that it can be guaranteed that one thin paper is fed to the conveying module each time, the printing quality is guaranteed, waste of the thin paper is avoided, the thin paper is flattened, and the printing quality is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of printing machines, in particular to a printing method of a single-sheet thin paper digital printing machine. Background Art

[0002] Digital printing press is a type of printing press, also known as universal flatbed printer or flatbed printer. It has broken through the bottleneck of digital printing technology and achieved the real meaning of one-sheet printing, no plate making, and full-color image completion at one time. It is a replacement product for traditional printing presses. The extremely low printing cost and high-quality printing effect are more economical and convenient than traditional printing systems. The extremely low system investment, digital operation mode and limited space occupation make the system have a greater market prospect. It is the best supplement to traditional printing and a replacement product for traditional printing presses.

[0003] Publication No. CN104290467B discloses a printing method of a single-sheet thin paper digital printing machine. When the existing single-sheet thin paper digital printing machine is in use, it is necessary to place a single sheet of thin paper on a conveying module for conveying, and complete the printing operation through a printing module. However, in actual use, adhesion between thin papers is likely to occur, so that there may be multiple sheets of thin paper fed to the conveying module, which not only affects the quality of printing, but also causes waste of thin paper. In addition, the thin paper is prone to unevenness, which also affects the quality of printing. Summary of the invention

[0004] The present invention aims at the technical problems existing in the prior art and provides a printing method for a single-sheet thin paper digital printing machine to solve the problem that when the existing single-sheet thin paper digital printing machine is in use, a single sheet of thin paper needs to be placed on a conveying module for conveying, and the printing operation is completed through a printing module. However, in actual use, adhesion between thin papers is likely to occur, so that there may be multiple sheets of thin paper fed to the conveying module, which not only affects the quality of printing, but also causes waste of thin paper. In addition, the thin paper is prone to being uneven, which also affects the quality of printing.

[0005] The technical solution of the present invention to solve the above technical problem is as follows: A printing method of a single-sheet thin paper digital printing machine comprises the following steps: S1: Electrostatic treatment of thin paper to enhance its stability and controllability during printing; S2: placing the thin paper stack after the static electricity removal process in the paper feeding device; S3: Use digital printing technology to accurately print according to preset patterns or texts; S4: Use the automatic paper collection device to collect the printed paper, sort it and stack it; S5: Perform subsequent processing such as cutting and folding on the printed materials as needed to meet different usage requirements.

[0006] Based on the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the paper feeding device includes two symmetrically arranged connecting frames arranged on the side walls of the printing machine body, and a paper feeding box is fixedly connected between the two connecting frames, the printing machine body includes a frame, a conveying module and a printing module, and the connecting frame is fixedly connected to the side wall of the frame, a first suction hood is fixedly connected between the two connecting frames, and a plurality of arrays of first suction holes are opened on the top of the first suction hood, a first exhaust fan is fixedly connected to the bottom of the first suction hood, a carrying plate is connected to the paper feeding box through a telescopic mechanism, and thin paper is placed on the carrying plate, an L-shaped plate is fixedly connected to the side wall of the paper feeding box, and the side wall of the L-shaped plate is connected to the side wall of the L-shaped plate through a movable module. The block is connected to a movable plate, the bottom of the movable plate is connected to the first movable block through the lifting module, and the side wall of the first movable block is connected to the second suction hood through the first reset mechanism, the bottom of the second suction hood is provided with a plurality of second suction holes arranged in an array, the top of the second suction hood is fixedly connected to the second exhaust fan, and a pressure plate is inserted into the side wall of the paper supply box, the pressure plate is connected to the side wall of the L-shaped plate through the second reset mechanism, and a plurality of ball bearings are arranged on the bottom of the pressure plate, the side wall of the second suction hood is provided with a flattening mechanism for flattening the thin paper adsorbed on the second suction hood, and the movement of the second suction hood is driven by the first pushing mechanism.

[0008] The beneficial effect of adopting the above further solution is that it can ensure that one piece of thin paper is fed to the conveying module each time, thereby ensuring the quality of printing and avoiding the waste of thin paper. In addition, the thin paper is flattened to ensure the quality of printing.

[0009] Furthermore, the telescopic mechanism includes two symmetrically arranged sleeves fixedly connected to the bottom of the paper supply box, and sleeve rods are inserted into the sleeves. The upper ends of the sleeve rods are fixed to the bottom of the bearing plate, and the side walls of each sleeve are sleeved with a first spring.

[0010] The beneficial effect of adopting the above further solution is that when the thin paper on the carrying plate becomes less, the carrying plate is moved upward under the action of the first spring to ensure that the thin paper is clamped between the carrying plate and the second suction cover.

[0011] Furthermore, the first resetting mechanism includes two symmetrically arranged first T-shaped guide rods inserted into the side wall of the first moving block, and one end of the first T-shaped guide rod is fixedly connected to the second connecting block, the second connecting block is fixed to the top of the second suction hood, and the side wall of each first T-shaped guide rod is sleeved with a second spring.

[0012] The beneficial effect of adopting the above further solution is that it guides and resets the movement of the second suction hood.

[0013] Furthermore, the first pushing mechanism includes a first L-shaped block fixedly connected to the top of the connecting frame, and the side wall of the first L-shaped block is fixedly connected to a mounting plate, the side wall of the mounting plate is fixedly connected to a plurality of triangular blocks arranged in an array, and the side wall of the second air suction hood is fixedly connected to a first pushing rod.

[0014] The beneficial effect of adopting the above-mentioned further scheme is that when the second suction hood absorbs the thin paper from above the supporting plate and moves toward the direction close to the conveying module, when the second suction hood moves to above the first suction hood, when the end of the first push rod abuts against the side wall of the triangular block, the second suction hood can be pushed to move. At the same time, the second spring is compressed. When the end of the first push rod passes over the side wall of the triangular block, the second suction hood can move and reset under the action of the second spring, and so on and so forth, so that the second suction hood can reciprocate in the horizontal direction to form a shaking effect, thereby facilitating the shaking off of the adhered thin paper and adsorbing it on the first suction hood.

[0015] Furthermore, the second reset mechanism includes two symmetrically arranged second T-shaped guide rods inserted into the side wall of the L-shaped plate, one end of the second T-shaped guide rod is fixed to the side wall of the pressure plate, and the side wall of each second T-shaped guide rod is sleeved with a third spring.

[0016] The beneficial effect of adopting the above further solution is that it plays a guiding and resetting role in the movement of the pressing plate.

[0017] Furthermore, the paving mechanism includes a second moving block, and the second moving block is connected to the side wall of the moving plate through a third reset mechanism, the side wall of the second moving block is fixedly connected with a scraper, and the movement of the second moving block is driven by a second pushing mechanism.

[0018] The beneficial effect of adopting the above further scheme is that when the second suction hood absorbs the thin paper and moves to the top of the conveying module, the second moving block and the scraper are pushed to move by the second pushing mechanism, so that the thin paper absorbed by the bottom of the second suction hood can be flattened.

[0019] Furthermore, the third reset mechanism includes two symmetrically arranged third T-shaped guide rods fixedly connected to the side walls of the second moving block, and the side walls of the third T-shaped guide rods are sleeved with third connecting blocks, the third connecting blocks are fixed to the side walls of the moving plate, and the side walls of each third T-shaped guide rod are sleeved with a fourth spring.

[0020] The beneficial effect of adopting the above further solution is that it plays a guiding and resetting role in the movement of the second moving block and the scraper.

[0021] Furthermore, the second pushing mechanism includes a second pushing rod fixedly connected to the side wall of the second moving block, and the top of the frame is fixedly connected to a second L-shaped block, the side wall of the second L-shaped block is fixedly connected to a pushing plate, and the top of the pushing plate is provided with an inclined surface.

[0022] The beneficial effect of adopting the above further solution is that when the second suction hood absorbs the thin paper and moves to the top of the conveying module, when the end of the second push rod abuts against the inclined surface, the second moving block and the scraper are pushed to move.

[0023] Furthermore, a third L-shaped block is fixedly connected to the top of the second air suction hood, and a visual sensor is fixedly inserted into the bottom of the third L-shaped block.

[0024] The beneficial effect of adopting the above further solution is that the thin paper of the first suction hood is detected by the visual sensor.

[0025] The beneficial effects of the present invention are: 1) By setting a telescopic mechanism, when printing, the thin paper is placed on the carrier plate. Under the action of the first spring, the thin paper is clamped between the carrier plate and the second suction hood. Then, the second exhaust fan is started to perform suction operation through the second suction hole, so that the upper thin paper can be adsorbed. Then, the moving plate is moved in the direction close to the conveying module through the moving module. At the same time, the pressing plate can be gradually moved to the top of the thin paper for limiting under the action of the third spring. At the same time, the second suction hole is against the top of the thin paper. When the thin paper to be adsorbed moves to the top of the first suction hood, the first exhaust fan is started to perform suction operation through the first suction hole. If the thin paper adheres, the thin paper below can be peeled off and adsorbed on the first suction hood in turn. The suction force of the second exhaust fan is greater, ensuring that only one piece of thin paper can be adsorbed on the second suction hood. When the thin paper is transported to the top of the conveying module, the second suction hood is moved downward by the lifting module. When the thin paper is close to the conveying module, the second exhaust fan is turned off and the paper can fall on the conveying module for transportation. Then, the second suction hood is moved to the top of the first suction hood by the moving module and the lifting module, and detected by the visual sensor. When the first suction hood has thin paper adsorbed on it, it can be adsorbed in sequence by the second suction hood, and it can also ensure that only one piece of thin paper is adsorbed each time. After there is no thin paper on the first suction hood, the second suction hood is moved to the top of the carrying plate. When the second suction hood is against the first moving block, the first moving block can be pushed to move. At the same time, the third spring is compressed, and then, the thin paper continues to be sucked from the carrying plate. This reciprocating process can ensure that one piece of thin paper is fed to the conveying module each time, thereby ensuring the quality of printing and avoiding waste of thin paper.

[0026] 2) By setting a first reset mechanism and a first pushing mechanism, when the second suction hood absorbs the thin paper from above the carrying plate and moves toward the direction close to the conveying module, when the second suction hood moves to above the first suction hood, when the end of the first pushing rod abuts against the side wall of the triangular block, the second suction hood can be pushed to move. At the same time, the second spring is compressed. When the end of the first pushing rod passes over the side wall of the triangular block, the second suction hood can move and reset under the action of the second spring. This reciprocating process can make the second suction hood move back and forth in the horizontal direction to form a shaking effect, thereby facilitating the shaking off of the adhered thin paper and adsorbing it on the first suction hood.

[0027] 3) By setting a flattening mechanism, when the second suction hood absorbs the thin paper and moves to the top of the conveying module, when the end of the second pushing rod abuts against the inclined surface, the second moving block and the scraper are pushed to move. At the same time, the fourth spring is compressed, so that the thin paper absorbed by the bottom of the second suction hood can be flattened. Then, the second suction hood is driven by the moving module to move a distance away from the pushing plate, so that the second pushing rod is disengaged from the inclined surface. At this time, the scraper can move and reset under the action of the fourth spring, so that the thin paper can be flattened again. Then, the second suction hood is driven to move downward by the lifting module and the thin paper is placed on the conveying module for conveying, thereby ensuring the printing quality and avoiding the waste of thin paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a partial cross-sectional structural schematic diagram of the paper feeding box in the present invention; Figure 3 It is a schematic diagram of the overall structure of the second air suction hood and the pressing plate in the present invention; Figure 4 for Figure 1 A schematic diagram of the enlarged structure at A in the middle; Figure 5 for Figure 2 A schematic diagram of the enlarged structure at B in the middle; Figure 6 for Figure 4 Schematic diagram of the enlarged structure at C in the middle; Figure 7 for Figure 5 Schematic diagram of the enlarged structure at D in the middle.

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Printing machine body; 101. Frame; 102. Transport module; 103. Printing module; 201. Second moving block; 202. Scraper; 301. Second connecting block; 302. First T-shaped guide rod; 303. Second spring; 401. First L-shaped block; 402. Mounting plate; 403. Triangular block; 404. First push rod; 501. Second push rod; 502. Second L-shaped block; 503. Push plate; 504. Inclined surface; 601. Third T-shaped guide rod; 602. Third connecting block; 603. Fourth spring; 70 1. Sleeve; 702. Sleeve rod; 703. First spring; 801. Second T-shaped guide rod; 802. Third spring; 9. Third L-shaped block; 10. Visual sensor; 11. Connecting frame; 12. First suction hood; 13. First suction hole; 14. First exhaust fan; 15. Paper supply box; 16. Carrying plate; 18. L-shaped plate; 19. Moving plate; 20. First moving block; 21. Second suction hood; 22. Second suction hole; 23. Pressing plate; 24. Ball bearing; 25. Second exhaust fan; 26. Moving module; 27. Lifting module. DETAILED DESCRIPTION

[0030] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0031] Digital printing press is a type of printing press, also known as universal flatbed printer or flatbed printer. It has broken through the bottleneck of digital printing technology and achieved the real meaning of one-sheet printing, no plate making, and full-color image completion at one time. It is a replacement product for traditional printing presses. The extremely low printing cost and high-quality printing effect are more economical and convenient than traditional printing systems. The extremely low system investment, digital operation mode and limited space occupation make the system have a greater market prospect. It is the best supplement to traditional printing and a replacement product for traditional printing presses.

[0032] After in-depth investigation and research on the printing process of the digital printing machine, the inventor found that: Publication No. CN104290467B discloses a printing method for a single-sheet thin paper digital printing machine. When the existing single-sheet thin paper digital printing machine is in use, it is necessary to place a single sheet of thin paper on a conveying module for conveying, and complete the printing operation through a printing module. However, in actual use, adhesion between thin papers is easy to occur, so that there may be multiple sheets of thin paper fed to the conveying module, which not only affects the quality of printing, but also causes waste of thin paper. In addition, the thin paper is prone to unevenness, which also affects the quality of printing. In this regard, the inventor proposes a printing method for a single-sheet thin paper digital printing machine to solve the above problems.

[0033] The present invention provides the following preferred embodiments like Figure 1-Figure 7As shown, a printing method of a single-sheet thin paper digital printing machine includes the following steps: S1: Electrostatic treatment of thin paper to enhance its stability and controllability during printing; S2: placing the thin paper stack after the static electricity removal process in the paper feeding device; S3: Use digital printing technology to accurately print according to preset patterns or texts; S4: Use the automatic paper collection device to collect the printed paper, sort it and stack it; S5: Perform subsequent processing such as cutting and folding on the printed materials as needed to meet different usage requirements.

[0034] In this embodiment, Figure 2 As shown, the paper feeding device includes two symmetrically arranged connecting frames 11 arranged on the side walls of the printing machine body 1, and a paper feeding box 15 is fixedly connected between the two connecting frames 11. The printing machine body 1 includes a frame 101, a conveying module 102 and a printing module 103, and the connecting frame 11 is fixedly connected to the side wall of the frame 101, a first suction hood 12 is fixedly connected between the two connecting frames 11, and a plurality of arrays of first suction holes 13 are opened on the top of the first suction hood 12, and a first exhaust fan 14 is fixedly connected to the bottom of the first suction hood 12, a carrying plate 16 is connected to the inside of the paper feeding box 15 through a telescopic mechanism, and thin paper is placed on the carrying plate 16, an L-shaped plate 18 is fixedly connected to the side wall of the paper feeding box 15, and the side wall of the L-shaped plate 18 is connected to a moving plate 19 through a moving module 26, and the bottom of the moving plate 19 is connected to A first moving block 20 is connected, and the side wall of the first moving block 20 is connected to a second suction hood 21 through a first reset mechanism 3. A plurality of second suction holes 22 arranged in an array are provided at the bottom of the second suction hood 21. A second exhaust fan 25 is fixedly connected to the top of the second suction hood 21. A pressing plate 23 is inserted into the side wall of the paper supply box 15. The pressing plate 23 is connected to the side wall of the L-shaped plate 18 through a second reset mechanism, and a plurality of balls 24 are provided at the bottom of the pressing plate 23. A flattening mechanism for flattening the thin paper adsorbed on the second suction hood 21 is provided on the side wall of the second suction hood 21, and the movement of the second suction hood 21 is pushed by the first pushing mechanism, which can ensure that a piece of thin paper is fed to the conveying module 102 each time, thereby ensuring the quality of printing and avoiding waste of thin paper. In addition, the thin paper is flattened to ensure the quality of printing.

[0035] In this embodiment, Figure 5As shown, the telescopic mechanism includes two symmetrically arranged sleeves 701 fixedly connected to the bottom of the paper supply box 15, and a sleeve rod 702 is inserted into the sleeve 701, the upper end of the sleeve rod 702 is fixed to the bottom of the supporting plate 16, and the side wall of each sleeve 701 is sleeved with a first spring 703. When the thin paper on the supporting plate 16 becomes less, under the action of the first spring 703, the supporting plate 16 moves upward to ensure that the thin paper is clamped between the supporting plate 16 and the second suction hood 21.

[0036] In this embodiment, Figure 7 As shown, the first reset mechanism includes two symmetrically arranged first T-shaped guide rods 302 inserted into the side wall of the first movable block 20, and one end of the first T-shaped guide rod 302 is fixedly connected to the second connecting block 301, the second connecting block 301 is fixed to the top of the second suction hood 21, and the side wall of each first T-shaped guide rod 302 is sleeved with a second spring 303, which plays a guiding and resetting role for the movement of the second suction hood 21.

[0037] In this embodiment, Figure 5-Figure 7 As shown, the first pushing mechanism includes a first L-shaped block 401 fixedly connected to the top of the connecting frame 11, and the side wall of the first L-shaped block 401 is fixedly connected to a mounting plate 402, and the side wall of the mounting plate 402 is fixedly connected to a plurality of triangular blocks 403 arranged in an array, and the side wall of the second suction cover 21 is fixedly connected to a first pushing rod 404. When the second suction cover 21 absorbs the thin paper from above the carrying plate 16 and moves toward the direction close to the conveying module 102, when the second suction cover 21 moves to above the first suction cover 12, When the end of the first push rod 404 abuts against the side wall of the triangular block 403, the second suction hood 21 can be pushed to move. At the same time, the second spring 303 is compressed. When the end of the first push rod 404 passes over the side wall of the triangular block 403, the second suction hood 21 can move and reset under the action of the second spring 303. This reciprocating motion can make the second suction hood 21 move back and forth in the horizontal direction to form a shaking effect, thereby facilitating the shaking off of the adhered thin paper and adsorbing it on the first suction hood 12.

[0038] In this embodiment, Figure 5 As shown, the second reset mechanism includes two symmetrically arranged second T-shaped guide rods 801 inserted into the side wall of the L-shaped plate 18, one end of the second T-shaped guide rod 801 is fixed to the side wall of the pressure plate 23, and the side wall of each second T-shaped guide rod 801 is sleeved with a third spring 802, which guides and resets the movement of the pressure plate 23.

[0039] In this embodiment, Figure 6As shown, the flattening mechanism includes a second moving block 201, and the second moving block 201 is connected to the side wall of the moving plate 19 through a third reset mechanism, the side wall of the second moving block 201 is fixedly connected with a scraper 202, and the movement of the second moving block 201 is driven by a second pushing mechanism. When the second suction hood 21 absorbs the thin paper and moves to the top of the conveying module 102, the second moving block 201 and the scraper 202 are pushed to move by the second pushing mechanism, so that the thin paper absorbed by the bottom of the second suction hood 21 can be flattened.

[0040] In this embodiment, Figure 5 and Figure 6 As shown, the third reset mechanism includes two symmetrically arranged third T-shaped guide rods 601 fixedly connected to the side walls of the second moving block 201, and the side walls of the third T-shaped guide rods 601 are sleeved with third connecting blocks 602, the third connecting blocks 602 are fixed to the side walls of the moving plate 19, and the side walls of each third T-shaped guide rod 601 are sleeved with fourth springs 603, which play a guiding and reset role in the movement of the second moving block 201 and the scraper 202.

[0041] In this embodiment, Figure 4 and Figure 6 As shown, the second pushing mechanism includes a second pushing rod 501 fixedly connected to the side wall of the second moving block 201, and a second L-shaped block 502 is fixedly connected to the top of the frame 101, and a pushing plate 503 is fixedly connected to the side wall of the second L-shaped block 502, and a slope 504 is provided on the top of the pushing plate 503. When the second suction hood 21 absorbs the thin paper and moves to the top of the conveying module 102, when the end of the second pushing rod 501 abuts against the slope 504, the second moving block 201 and the scraper 202 are pushed to move.

[0042] In this embodiment, Figure 7 As shown, a third L-shaped block 9 is fixedly connected to the top of the second suction hood 21 , and a visual sensor 10 is fixedly inserted into the bottom of the third L-shaped block 9 , and the thin paper of the first suction hood 12 is detected by the visual sensor 10 .

[0043] The specific method of use of the present invention is as follows: When in use, first, when printing, put the thin paper on the carrying plate 16, under the action of the first spring 703, the thin paper is clamped between the carrying plate 16 and the second suction hood 21, then, start the second exhaust fan 25, and perform suction operation through the second suction hole 22, so that the upper thin paper can be adsorbed, then, the moving plate 19 is moved in the direction close to the conveying module 102 through the moving module 26, and at the same time, the pressing plate 23 can be gradually moved to the top of the thin paper for limiting under the action of the third spring 802, and at the same time, the second suction hole 22 is against the top of the thin paper, and when the thin paper to be adsorbed moves to the top of the first suction hood 12, start the first exhaust fan 14, so that the first suction hole 13 performs suction operation, if the thin paper is adhered, the thin paper below can be peeled off and adsorbed on the first suction hood 12 in turn, and the suction force of the second exhaust fan 25 is greater, ensuring that only one piece of thin paper can be adsorbed on the second suction hood 21; At the same time, when the second suction hood 21 absorbs the thin paper from above the carrying plate 16 and moves in the direction close to the conveying module 102, when the second suction hood 21 moves to above the first suction hood 12, when the end of the first push rod 404 abuts against the side wall of the triangular block 403, the second suction hood 21 can be pushed to move. At the same time, the second spring 303 is compressed. When the end of the first push rod 404 passes over the side wall of the triangular block 403, the second suction hood 21 can move and reset under the action of the second spring 303. This reciprocating process can make the second suction hood 21 reciprocate in the horizontal direction to form a shaking effect, so as to facilitate shaking off the adhered thin paper and adsorbing it on the first suction hood 12; When the second suction hood 21 absorbs the thin paper and moves to the top of the conveying module 102, when the end of the second pushing rod 501 abuts against the inclined surface 504, the second moving block 201 and the scraper 202 are pushed to move, and at the same time, the fourth spring 603 is compressed, so that the thin paper absorbed by the bottom of the second suction hood 21 can be flattened. Then, the second suction hood 21 is driven by the moving module 26 to move a distance away from the pushing plate 503, so that the second pushing rod 501 is separated from the inclined surface 504. At this time, the scraper 202 can move and reset under the action of the fourth spring 603, so that the thin paper can be flattened again. Then, the second suction hood 21 is driven by the lifting module 27 to move downward and place the thin paper on the conveying module 102 for conveying, thereby ensuring the printing quality and avoiding the waste of thin paper. Next, the second suction hood 21 is moved to the top of the first suction hood 12 through the moving module 26 and the lifting module 27, and detected by the visual sensor 10. When thin paper is adsorbed on the first suction hood 12, it can be adsorbed in turn by the second suction hood 21, and it can also ensure that only one piece of thin paper is adsorbed each time. After there is no thin paper on the first suction hood 12, the second suction hood 21 is moved to the top of the supporting plate 16. When the second suction hood 21 is against the first moving block 20, it can push the first moving block 20 to move. At the same time, the third spring 802 is compressed, and then, the thin paper continues to be sucked from the supporting plate 16. This reciprocating process can ensure that one piece of thin paper is fed to the conveying module 102 each time, thereby ensuring the quality of printing and avoiding waste of thin paper.

[0044] In summary, the beneficial effects of the present invention are specifically embodied in that a piece of thin paper can be fed to the conveying module 102 each time, thereby ensuring the quality of printing, avoiding the waste of thin paper, and flattening the thin paper to ensure the quality of printing.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A printing method for a single-sheet thin paper digital printing machine, characterized in that: The following steps are involved: S1: Electrostatic treatment of thin paper to enhance its stability and controllability during printing; S2: placing the thin paper stack after the static electricity removal process in the paper feeding device; S3: Use digital printing technology to accurately print according to preset patterns or texts; S4: Use the automatic paper collection device to collect the printed paper, sort it and stack it; S5: Perform subsequent processing such as cutting and folding on the printed materials as needed to meet different usage requirements.

2. The printing method of a sheet-fed thin paper digital printing machine according to claim 1, characterized in that: The paper supply device comprises two symmetrically arranged connecting frames (11) arranged on the side walls of a printing machine body (1), and a paper supply box (15) is fixedly connected between the two connecting frames (11); the printing machine body (1) comprises a frame (101), a conveying module (102) and a printing module (103), and the connecting frames (11) are fixedly connected to the side walls of the frame (101); a first air suction hood (12) is fixedly connected between the two connecting frames (11), and a plurality of arrays of first air suction holes (13) are provided on the top of the first air suction hood (12).

3. The printing method of a sheet-fed thin paper digital printing machine according to claim 2, characterized in that: The bottom of the first suction hood (12) is fixedly connected to a first exhaust fan (14); the paper supply box (15) is connected to a carrying plate (16) via a telescopic mechanism, and thin paper is placed on the carrying plate (16).

4. The printing method of a sheet-fed thin paper digital printing machine according to claim 3, characterized in that: The side wall of the paper supply box (15) is fixedly connected to an L-shaped plate (18), and the side wall of the L-shaped plate (18) is connected to a movable plate (19) via a movable module (26); the bottom of the movable plate (19) is connected to a first movable block (20) via a lifting module (27), and the side wall of the first movable block (20) is connected to a second suction cover (21) via a first reset mechanism (3); the bottom of the second suction cover (21) is provided with a plurality of second suction holes (22) arranged in an array; the top of the second suction cover (21) is fixedly connected to a second exhaust fan (25); and the side wall of the paper supply box (15) is inserted into the side wall of the paper supply box (15). A pressing plate (23) is provided, the pressing plate (23) is connected to the side wall of the L-shaped plate (18) via a second reset mechanism, and a plurality of balls (24) are provided at the bottom of the pressing plate (23), a flattening mechanism for flattening the thin paper adsorbed on the second suction hood (21) is provided on the side wall of the second suction hood (21), and the movement of the second suction hood (21) is driven by a first driving mechanism; the telescopic mechanism comprises two symmetrically arranged sleeves (701) fixedly connected to the bottom of the paper supply box (15), and a sleeve rod (702) is inserted into the sleeve (701), and the upper end of the sleeve rod (702) is connected to the bearing The bottom of the plate (16) is fixed, and the side wall of each sleeve (701) is sleeved with a first spring (703); the first reset mechanism comprises two symmetrically arranged first T-shaped guide rods (302) inserted into the side wall of the first moving block (20), and one end of the first T-shaped guide rod (302) is fixedly connected to a second connecting block (301), the second connecting block (301) is fixed to the top of the second suction cover (21), and the side wall of each first T-shaped guide rod (302) is sleeved with a second spring (303); the paving mechanism comprises a second moving block (201), and the second moving block (201) is connected to the second suction cover (21) through a third The reset mechanism is connected to the side wall of the movable plate (19); the side wall of the second movable block (201) is fixedly connected to a scraper (202); and the movement of the second movable block (201) is driven by a second driving mechanism; the third reset mechanism comprises two symmetrically arranged third T-shaped guide rods (601) fixedly connected to the side wall of the second movable block (201); the side wall of the third T-shaped guide rod (601) is sleeved with a third connecting block (602); the third connecting block (602) is fixed to the side wall of the movable plate (19); and the side wall of each third T-shaped guide rod (601) is sleeved with a fourth spring (603).

5. The printing method of a sheet-fed thin paper digital printing machine according to claim 4, characterized in that: The first pushing mechanism comprises a first L-shaped block (401) fixedly connected to the top of the connecting frame (11), and the side wall of the first L-shaped block (401) is fixedly connected to a mounting plate (402), the side wall of the mounting plate (402) is fixedly connected to a plurality of triangular blocks (403) arranged in an array, and the side wall of the second air suction hood (21) is fixedly connected to a first pushing rod (404).

6. The printing method of a sheet-fed thin paper digital printing machine according to claim 4, characterized in that: The second reset mechanism comprises two symmetrically arranged second T-shaped guide rods (801) inserted into the side wall of the L-shaped plate (18), one end of the second T-shaped guide rod (801) being fixed to the side wall of the pressure plate (23), and a third spring (802) being sleeved on the side wall of each second T-shaped guide rod (801).

7. The printing method of a sheet-fed thin paper digital printing machine according to claim 4, characterized in that: The second pushing mechanism comprises a second pushing rod (501) fixedly connected to a side wall of the second moving block (201), a second L-shaped block (502) is fixedly connected to the top of the frame (101), a pushing plate (503) is fixedly connected to the side wall of the second L-shaped block (502), and a slope (504) is provided on the top of the pushing plate (503).

8. The printing method of a sheet-fed thin paper digital printing machine according to claim 4, characterized in that: A third L-shaped block (9) is fixedly connected to the top of the second air suction hood (21), and a visual sensor (10) is fixedly inserted into the bottom of the third L-shaped block (9).

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