Printing device and printing method thereof

Abstract

The present application relates to a printing device and a printing method thereof, comprising a printing machine body, a turning frame is provided at the discharge port of the printing machine body, a positioning plate for pressing down the paper is provided on the turning frame, a lifting assembly for driving the positioning plate to rise and fall is provided on the turning frame; a turning plate for driving the paper to turn over is provided on the turning frame, and a turning assembly for driving the turning plate to rotate is provided on the turning frame; a compacting frame is provided on one side of the turning frame, a suction cup that can be moved into the turning frame is slidably connected on the compacting frame, a moving assembly for driving the suction cup to move so that the paper is moved to the compacting frame is provided on the compacting frame, a pressing plate for compacting the fold of the paper is provided above the compacting frame, and a pressing assembly for driving the pressing plate to rise and fall is provided on the compacting frame; a stacking frame for collecting compacted paper is provided on one side of the compacting frame, and a material unloading mechanism is provided between the compacting frame and the stacking frame. The present application has the effect of improving the efficiency of folding and stacking the paper after printing and saving time.

Description

Technical Field

[0001] The present application relates to the technical field of printing, and in particular to a printing device and a printing method thereof. Background Art

[0002] A printing press is a machine for printing text and images. Modern printing presses are generally composed of mechanisms such as plate loading, inking, pressing, and paper feeding. Its working principle is: first, the text and image to be printed are made into a printing plate, which is then installed on the printing press. Then, ink is applied to the places where the text and image are on the printing plate by humans or the printing press, and then directly or indirectly transferred to paper or other substrates, thereby replicating a printed product identical to the printing plate.

[0003] After some types of paper are printed by a printing machine, they need to be folded in half. Existing paper is first stacked and sorted after coming out of the printing machine, then transported to a paper folding device to be folded in half, and then the folded paper is stacked and stored. However, the whole process is cumbersome and time-consuming. Summary of the invention

[0004] In order to improve the efficiency of folding and stacking paper after printing and save time, the present application provides a printing device and a printing method thereof.

[0005] In a first aspect, the present application provides a printing device, which adopts the following technical solution:

[0006] A printing device, comprising a printing machine body, characterized in that: a turning frame for receiving printed paper is provided at the discharge port of the printing machine body, a positioning plate for pressing the paper downward is provided on the turning frame, the positioning plate is located on one side of the middle of the paper, i.e., the bending part of the paper, and a lifting assembly for driving the positioning plate to rise and fall is provided on the turning frame; a turning plate for driving the paper to turn over is provided on the turning frame, and a turning assembly for driving the turning plate to rotate from below the positioning plate to above the positioning plate and pressing the paper in a folded state is provided on the turning frame; A compacting frame is arranged on one side of the turning frame, and a suction cup which can be moved into the turning frame is slidably connected to the compacting frame, and the suction cup is used to suck the lower surface of the folded paper tightly, and a moving component is arranged on the compacting frame to drive the suction cup to move so as to move the paper onto the compacting frame, and a pressing plate for compacting the folded part of the paper is arranged above the compacting frame, and a pressing component for driving the pressing plate to rise and fall is arranged on the compacting frame; a stacking frame for collecting the compacted paper is arranged on one side of the compacting frame, and a unloading mechanism for conveying the compacted paper into the stacking frame is arranged between the compacting frame and the stacking frame.

[0007] By adopting the above technical scheme, after printing, the paper is directly sent to the turning frame from the discharge port of the printing machine body, and then the lifting component drives the positioning plate to press the paper, and the turning component drives the turning plate to drive the paper to rotate and fold it and press it; the moving component drives the suction cup to move into the turning frame and suck the paper tightly, and then drives the paper to move to the compacting frame, and the pressing component drives the pressing plate to compact the fold of the paper, and then the paper is sent to the stacking frame for stacking through the unloading mechanism, thus realizing the whole process from the completion of printing to the folding and stacking of the paper, without the need for manual handling, improving the efficiency of folding and stacking of the paper after printing, and saving time.

[0008] Optionally, the lifting assembly includes a lifting cylinder and a connecting rod, the lifting cylinder is fixed on one side of the flip frame, and the connecting rod is fixed between the top end of the lifting cylinder piston rod and the positioning plate.

[0009] By adopting the above technical solution, the lifting cylinder can be started to drive the positioning plate to rise and fall through the connecting rod, thereby improving the positioning and pressing efficiency of the paper.

[0010] Optionally, the flipping assembly includes a flipping motor fixed on the flipping frame, a rotating shaft fixed coaxially with the output shaft of the flipping motor, an arc rod fixed on the rotating shaft, and a flipping cylinder hinged between the arc rod and the flipping plate, wherein one end of the arc rod away from the rotating shaft is hinged to the flipping plate, and a clearance hole is opened on the flipping plate for the arc rod to pass through.

[0011] By adopting the above technical solution, the flip motor is started to rotate the rotating shaft, the rotating shaft drives the arc rod to rotate, the flip plate rotates following the end of the arc rod, and the paper is driven from the bottom of the positioning plate to the top of the positioning plate at the same time, and the flip cylinder is started to push the flip plate to rotate, so that the flip plate gradually presses the paper, thereby improving the initial folding efficiency of the paper.

[0012] Optionally, the moving assembly includes a moving motor fixed on the compacting frame, a screw fixed coaxially with the moving motor, a smooth rod fixed on the compacting frame and parallel to the screw, a threaded block threadedly connected to the screw and penetrated by the smooth rod, and the suction cup is installed on the threaded block.

[0013] By adopting the above technical solution, the moving motor is started to rotate the screw rod, so that the threaded block can slide along the length direction of the polished rod, thereby improving the moving efficiency of the suction cup.

[0014] Optionally, an adjusting cylinder is fixed on the threaded block, and the suction cup is installed on the top end of the piston rod of the adjusting cylinder.

[0015] By adopting the above technical solution, the suction cup can be raised and lowered by starting the adjusting cylinder. After the suction cup moves to the turning frame, the adjusting cylinder drives the suction cup to rise and suck the paper tightly. After the suction cup moves back to the compacting frame, the adjusting cylinder drives the suction cup to descend to avoid the suction cup being affected when the pressure plate descends to compact the paper, thereby improving the safety of the device.

[0016] Optionally, the pressing assembly includes a mounting frame fixed on the compacting frame, and a plurality of pressing cylinders invertedly fixed on the mounting frame, and the bottom ends of the piston rods of all the pressing cylinders are fixed to the pressing plate.

[0017] By adopting the above technical solution, all the downward pressure cylinders can be started at the same time to drive the pressing plate to compact the paper, which has a simple structure and is highly efficient.

[0018] Optionally, the unloading mechanism includes a pushing component and a conveyor belt, the conveyor belt is located between the compacting frame and the stacking frame, and the pushing component is used to push the compacted paper onto the conveyor belt.

[0019] By adopting the above technical solution, after the paper is compacted, the pushing component pushes the paper onto the conveyor belt, and the conveyor belt transports the paper to the stacking frame for stacking, thereby realizing automatic unloading of paper and improving the working efficiency of the device.

[0020] Optionally, the pushing assembly includes a pushing cylinder and a pushing plate, wherein the pushing cylinder is fixed to one side of the compacting frame, and the pushing plate is fixed to the end of the piston rod of the pushing cylinder and is used to push the compacted paper.

[0021] By adopting the above technical solution, the pushing plate can push the paper to move by starting the pushing cylinder, and the structure is simple and efficient.

[0022] Optionally, when the pushing component pushes the compacted paper to move, the fold of the paper is the moving front end, and the pushing direction of the pushing component is consistent with the conveying direction of the conveyor belt.

[0023] By adopting the above technical scheme, the contact position between the paper and the pushing plate can be made the opening position of the paper, thereby improving the pushing accuracy of the pushing plate, and the bending part of the paper reaches the conveyor belt first, thereby improving the stability of the paper from the compacting frame to the conveyor belt. Finally, the bending part of the paper leaves the conveyor belt first and then enters the stacking frame, thereby avoiding the opening of the paper as much as possible and improving the stacking efficiency of the paper.

[0024] In a second aspect, the present application provides a printing method, which adopts the following technical solution:

[0025] A printing method comprises the following steps:

[0026] S1. The printed paper is sent to the turning frame. The lifting assembly drives the positioning plate to move down to press the paper and determine the fold position of the paper. The turning assembly drives the turning plate to rotate above the positioning plate and press the paper downward to complete the initial folding of the paper.

[0027] S2, the moving component drives the suction cup to move to the turning frame and suck the paper tightly, the lifting component drives the positioning plate to release the paper, the turning component drives the turning plate to release the paper, the moving component then drives the suction cup to move to the compacting frame, and the pressing component drives the pressing plate to compact the paper;

[0028] S3, the pushing component pushes the compacted paper onto the conveyor belt, and the conveyor belt conveys the paper to the stacking frame for stacking.

[0029] By adopting the above technical solution, the entire process from printing to folding and stacking of paper can be automated without manual handling, with high work efficiency and short time. The stability of the paper folding process and the effect after folding are good.

[0030] In summary, the present application includes at least one of the following beneficial technical effects:

[0031] 1. The paper is directly sent to the turning frame, the lifting component drives the positioning plate to press the paper, the turning component drives the turning plate to drive the paper to rotate and fold, the moving component drives the suction cup to move to suck the paper tightly and then drives the paper to move to the compacting frame, the pressing component drives the pressing plate to compact the paper, and the unloading mechanism sends the paper to the stacking frame for stacking, which improves the efficiency of folding and stacking the paper after printing and saves time;

[0032] 2. After the suction cup moves to the turning frame, the adjusting cylinder drives the suction cup to rise and suck the paper tightly. After the suction cup moves back to the compacting frame, the adjusting cylinder drives the suction cup to descend to avoid the suction cup being affected when the pressing plate descends to compact the paper, thereby improving the safety of the device;

[0033] 3. The contact position between the paper and the push plate is the opening position of the paper itself, which improves the pushing accuracy of the push plate. The bent part of the paper reaches the conveyor belt first, and finally the bent part of the paper leaves the conveyor belt first and then goes to the stacking frame, which can avoid the opening of the paper as much as possible and improve the stacking efficiency of the paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;

[0035] Figure 2 It is a partial cross-sectional view showing the flip assembly;

[0036] Figure 3 It is a partial cross-sectional view to show the moving components;

[0037] Figure 4 This is a partial cross-sectional view showing that the flip plate is located above the positioning plate.

[0038] Explanation of the reference numerals in the accompanying drawings: 1. Printing machine body; 2. Flip frame; 21. Positioning plate; 22. Flip plate; 221. Clearance hole; 3. Lifting assembly; 31. Lifting cylinder; 32. Connecting rod; 4. Flip assembly; 41. Flip motor; 42. Rotating shaft; 43. Arc rod; 44. Flip cylinder; 5. Compacting frame; 51. Suction cup; 52. Pressing plate; 6. Moving assembly; 61. Moving motor; 62. Screw; 63. Light rod; 64. Threaded block; 65. Adjusting cylinder; 7. Pressing assembly; 71. Mounting frame; 72. Pressing cylinder; 8. Stacking frame; 9. Unloading mechanism; 91. Pushing assembly; 911. Pushing cylinder; 912. Pushing plate; 92. Conveyor belt. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-4 This application is described in further detail.

[0040] The embodiment of the present application discloses a printing device.

[0041] refer to Figure 1 The printing device includes a printing machine body 1, and a turning frame 2 is provided on one side of the discharge port of the printing machine body 1. The printed paper falls directly from the discharge port of the printing machine body 1 to the upper surface of the turning frame 2. The turning frame 2 is provided with a positioning plate 21 for pressing half of the area of ​​the paper. The positioning plate 21 is located on one side of the middle of the paper, which is the bending part of the paper. A lifting component 3 for driving the positioning plate 21 to rise and fall is provided on one side of the turning frame 2.

[0042] refer to Figure 2 A flip plate 22 for driving the paper to flip is provided inside the flip frame 2. The flip frame 2 has a through hole for the flip plate 22 to rotate from the inside of the flip frame 2 to the top of the flip frame 2. A flip component 4 is provided inside the flip frame 2 for driving the flip plate 22 to rotate from the inside of the flip frame 2 to the top of the positioning plate 21 and pressing the paper in a folded state.

[0043] refer to Figure 3 A compacting frame 5 is provided on one side of the turning frame 2 perpendicular to the length direction of the paper fold, and the upper surface of the compacting frame 5 is not higher than the upper surface of the turning frame 2. A suction cup 51 for sucking the lower surface of the folded paper is slidably connected in the compacting frame 5. The through hole is also provided on the upper surface of the compacting frame 5 and extends to the turning frame 2. A moving component 6 for driving the suction cup 51 to move between the turning frame 2 and the compacting frame 5 is provided in the compacting frame 5; a pressing plate 52 for compacting the bent part of the paper is provided above the compacting frame 5, and a pressing component 7 for driving the pressing plate 52 to rise and fall is provided on the compacting frame 5.

[0044] refer to Figure 1 A stacking frame 8 for collecting and stacking paper is provided on one side of the compacting frame 5 close to and parallel to the bending part of the paper, and a feeding mechanism 9 for transporting paper into the stacking frame 8 is provided between the compacting frame 5 and the stacking frame 8.

[0045] The printed paper is directly transferred to the upper surface of the turning frame 2. At this time, the lifting component 3 drives the positioning plate 21 to press the paper and locate the bending part of the paper. The turning component 4 then drives the turning plate 22 to turn over and drives the paper to rotate and press the paper to achieve the initial folding of the paper. At this time, the moving component 6 drives the suction cup 51 to move to the bottom of the paper and suck it tightly. The turning component 4 drives the turning plate 22 to release the paper. The lifting component 3 drives the positioning plate 21 to release the paper. The moving component 6 drives the suction cup 51 to move so that the paper moves to the compacting frame 5. The pressing component 7 drives the pressing plate 52 to compact the bending part of the paper. The unloading mechanism 9 then drives the compacted paper to the stacking frame 8 for stacking, so that the whole process from the completion of printing to the completion of stacking after folding is realized in an integrated automation, which improves the efficiency of folding and stacking of paper after printing and saves time.

[0046] refer to Figure 2 The lifting assembly 3 includes a lifting cylinder 31 vertically fixed on one side of the flip frame 2, and a plurality of connecting rods 32 fixed between the top of the piston rod of the lifting cylinder 31 and the positioning plate 21; the lifting and lowering of the positioning plate 21 can be achieved by starting the lifting cylinder 31, and the structure is simple and efficient.

[0047] refer to Figure 2 and Figure 4 The flip assembly 4 includes a flip motor 41, a rotating shaft 42, an arc rod 43, and a flip cylinder 44. The flip motor 41 is horizontally fixed in the flip frame 2, and the rotating shaft 42 is coaxially fixed on the output shaft of the flip motor 41. There are multiple arc rods 43 and the flip plates 22 and they correspond one to one. One end of the arc rod 43 is fixed on the rotating shaft 42, and the other end is hinged on the flip plate 22. A clearance hole 221 for the arc rod 43 to pass through is opened on the flip plate 22, and the hinge of the arc rod 43 is located inside the clearance hole 221; one end of the flip cylinder 44 is hinged on the arc rod 43, and the other end is hinged on the flip plate 22. Start the flip motor 41 to make the rotating shaft 42 drive the arc rod 43 to rotate. Since the arc rod 43 is connected to the flip plate 22 via the flip cylinder 44, after the flip plate 22 rotates upward through the through hole, the flip cylinder 44 extends to press the flip plate 22 against the positioning plate 21, thereby improving the efficiency of folding the paper and will not affect the smooth movement of the paper from the discharge port of the printing machine body 1 to the specified position on the flip frame 2.

[0048] refer to Figure 1 and Figure 3The moving assembly 6 includes a moving motor 61, a screw 62, a polished rod 63, a threaded block 64 and an adjusting cylinder 65. The moving motor 61 is horizontally fixed in the compacting frame 5. The screw 62 is rotatably connected between the flip frame 2 and the compacting frame 5 and is coaxially fixed with the output shaft of the moving motor 61. The polished rod 63 is fixed between the flip frame 2 and the compacting frame 5 and is parallel to the screw 62. The threaded block 64 is threadedly connected to the screw 62 and penetrated by the polished rod 63. The adjusting cylinder 65 is vertically fixed on the upper surface of the threaded hole 64. A plurality of suction cups 51 can be provided, and all are installed at the top end of the piston rod of the adjusting cylinder 65. Each suction cup 51 is located directly below the corresponding through hole. In this embodiment, the suction cup 51 is a vacuum suction cup.

[0049] The suction cup 51 can be moved between the turning frame 2 and the compacting frame 5 by starting the moving motor 61, and the suction cup 51 can be raised and lowered by starting the adjusting cylinder 65; when the moving motor 61 is started to move the suction cup 51 to the bottom of the turning frame 2, the adjusting cylinder 65 is extended to make the suction cup 51 suck the paper tightly, and the moving motor 61 is reversed to move the suction cup 51 to the bottom of the compacting frame 5, and the adjusting cylinder 65 is contracted to make the suction cup 51 release the paper and be lower than the upper surface of the compacting frame 5, which can prevent the pressure plate 52 from affecting the suction cup 51 when compacting the paper, thereby improving the efficiency of moving the paper from the turning frame 2 to the compacting frame 5.

[0050] refer to Figure 3 The pressing assembly 7 includes a mounting frame 71 and a plurality of pressing cylinders 72. The mounting frame 71 is fixed on the upper surface of the compacting frame 5. The pressing cylinders 72 are fixed upside down at the dead angle of the mounting frame 71, and the bottom ends of the piston rods of the pressing cylinders 72 are fixed to the upper surface of the pressing plate 52. The pressing plate 52 can be raised or lowered by starting the pressing cylinders 72, thereby improving the compaction efficiency at the fold of the paper.

[0051] refer to Figure 1 and Figure 3 The stacking frame 8 is set with an opening on one side facing the compacting frame 5. The unloading mechanism 9 includes a pushing component 91 and a conveyor belt 92. The pushing component 91 includes a pushing cylinder 911 horizontally fixed on one side of the compacting frame 5 and a pushing plate 912 fixed on the end of the piston rod of the pushing cylinder 911. The extension direction of the pushing cylinder 911 is perpendicular to the length direction of the paper fold, and the lower surface of the pushing plate 912 is flush with the upper surface of the compacting frame 5; the conveyor belt 92 is located between the compacting frame 5 and the stacking frame 8, and the direction of the paper bending part is the position of the conveyor belt 92, and the conveying direction of the conveyor belt 92 is consistent with the extension direction of the pushing cylinder 911.

[0052] After the paper is compacted, the pushing cylinder 911 drives the pushing plate 912 to push the paper onto the conveyor belt 92, and the conveyor belt 92 then transports the paper to the stacking frame 8 for stacking. During the transportation process, the paper can be prevented from opening, thereby improving the efficiency of the paper stably entering the stacking frame 8 for stacking.

[0053] The implementation principle of a printing device in an embodiment of the present application is as follows: the printed paper is directly transferred from the printing machine body 1 to the upper surface of the turning frame 2, at which time the lifting cylinder 31 drives the positioning plate 21 to press the paper and locate the bending part of the paper, the turning motor 41 is started to drive the turning plate 22 to turn over and drive the paper to rotate and press the paper to achieve the initial folding of the paper; at this time, the moving motor 61 is started to drive the suction cup 51 to move to the bottom of the paper and suck it tightly, the turning motor 41 is started again to turn it over, and the turning plate 22 is driven to release the paper, the lifting cylinder 31 is extended to drive the positioning plate 21 to release the paper, the moving motor 61 is started again to reverse and drive the suction cup 51 to move, so that the paper moves to the compacting frame 5, the pressing cylinder 72 is started to drive the pressing plate 52 to compact the bending part of the paper, and the pushing cylinder 911 is started to push the compacted paper to the conveyor belt 92, and the conveyor belt 92 drives the paper to the stacking frame 8 for stacking, thereby improving the efficiency of folding and stacking the paper after printing and saving time.

[0054] The embodiment of the present application also discloses a printing method.

[0055] A printing method comprises the following steps:

[0056] S1, the printed paper is sent to the turning frame 2, the lifting assembly 3 drives the positioning plate 21 to move down and press the paper, and determines the fold position of the paper, the turning assembly 4 drives the turning plate 22 to rotate to the top of the positioning plate 21 and press the paper downward, completing the preliminary folding of the paper;

[0057] S2, the moving component 6 drives the suction cup 51 to move into the turning frame 2 and suck the paper tightly, the lifting component 3 drives the positioning plate 21 to release the paper, the turning component 4 drives the turning plate 22 to release the paper, the moving component 6 then drives the suction cup 51 to move onto the compacting frame 5, and the pressing component 7 drives the pressing plate 52 to compact the paper;

[0058] S3, the pushing component 91 pushes the compacted paper onto the conveyor belt 92, and the conveyor belt 92 conveys the paper to the stacking frame 8 for stacking.

[0059] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A printing device, comprising a printing machine body (1), characterized in that: The printing machine body (1) is provided with a turning frame (2) at the discharge port for receiving the paper after printing, and a positioning plate (21) is provided on the turning frame (2) for pressing the paper downwards, and the positioning plate (21) is located on one side of the middle of the paper, i.e., the bending part of the paper, and a lifting assembly (3) is provided on the turning frame (2) for driving the positioning plate (21) to rise and fall; a turning plate (22) is provided on the turning frame (2) for driving the paper to turn over, and a turning assembly (4) is provided on the turning frame (2) for driving the turning plate (22) to rotate from the bottom of the positioning plate (21) to the top of the positioning plate (21) and pressing the paper in a folded state; a compacting frame (5) is provided on one side of the turning frame (2). A suction cup (51) is slidably connected to the compacting frame (5) and can be moved into the turning frame (2). The suction cup (51) is used to suck the lower surface of the folded paper. The compacting frame (5) is provided with a moving component (6) for driving the suction cup (51) to move so that the paper moves to the compacting frame (5). A pressing plate (52) for compacting the folded part of the paper is provided above the compacting frame (5). The compacting frame (5) is provided with a pressing component (7) for driving the pressing plate (52) to move up and down. A stacking frame (8) for collecting the compacted paper is provided on one side of the compacting frame (5). A feeding mechanism (9) for conveying the compacted paper to the stacking frame (8) is provided between the compacting frame (5) and the stacking frame (8). The lifting assembly (3) comprises a lifting cylinder (31) and a connecting rod (32), wherein the lifting cylinder (31) is fixed on one side of the turning frame (2), and the connecting rod (32) is fixed between the top end of the piston rod of the lifting cylinder (31) and the positioning plate (21); The flip assembly (4) comprises a flip motor (41) fixed on the flip frame (2), a rotating shaft (42) fixed coaxially with the output shaft of the flip motor (41), an arc rod (43) fixed on the rotating shaft (42), and a flip cylinder (44) hinged between the arc rod (43) and the flip plate (22), wherein one end of the arc rod (43) away from the rotating shaft (42) is hinged to the flip plate (22), and a clearance hole (221) for the arc rod (43) to pass through is opened on the flip plate (22).

2. A printing device according to claim 1, characterized in that: The moving assembly (6) comprises a moving motor (61) fixed on the compacting frame (5), a screw rod (62) fixed coaxially with the moving motor (61), a smooth rod (63) fixed on the compacting frame (5) and parallel to the screw rod (62), and a threaded block (64) threadedly connected to the screw rod (62) and penetrated by the smooth rod (63); the suction cup (51) is mounted on the threaded block (64).

3. A printing device according to claim 2, characterized in that: An adjusting cylinder (65) is fixed on the threaded block (64), and the suction cup (51) is installed on the top end of the piston rod of the adjusting cylinder (65).

4. A printing device according to claim 1, characterized in that: The pressing assembly (7) comprises a mounting frame (71) fixed on the compacting frame (5), and a plurality of pressing cylinders (72) invertedly fixed on the mounting frame (71), wherein the bottom ends of the piston rods of all the pressing cylinders (72) are fixed to the pressing plate (52).

5. A printing device according to claim 1, characterized in that: The unloading mechanism (9) comprises a pushing component (91) and a conveyor belt (92); the conveyor belt (92) is located between the compacting frame (5) and the stacking frame (8); the pushing component (91) is used to push the compacted paper onto the conveyor belt (92).

6. A printing device according to claim 5, characterized in that: The pushing assembly (91) comprises a pushing cylinder (911) and a pushing plate (912); the pushing cylinder (911) is fixed to one side of the compacting frame (5); the pushing plate (912) is fixed to the end of the piston rod of the pushing cylinder (911) and is used to push the compacted paper.

7. A printing device according to claim 5, characterized in that: When the pushing component (91) pushes the compacted paper to move, the fold of the paper is the moving front end, and the pushing direction of the pushing component (91) is consistent with the conveying direction of the conveyor belt (92).

8. A printing method, characterized in that: Applied to the printing device according to any one of claims 1 to 7, the printing method comprises the following steps: S1, the printed paper is sent to the turning frame (2), the lifting assembly (3) drives the positioning plate (21) to move downward to press the paper, and determines the fold position of the paper, and the turning assembly (4) drives the turning plate (22) to rotate to the top of the positioning plate (21) and press the paper downward to complete the initial folding of the paper; S2, the moving component (6) drives the suction cup (51) to move into the turning frame (2) and suck the paper tightly, the lifting component (3) drives the positioning plate (21) to release the paper, the turning component (4) drives the turning plate (22) to release the paper, the moving component (6) then drives the suction cup (51) to move onto the compacting frame (5), and the pressing component (7) drives the pressing plate (52) to compact the paper; S3, the pushing component (91) pushes the compacted paper onto the conveyor belt (92), and the conveyor belt (92) conveys the paper to the stacking frame (8) for stacking.

Images