A paper conveying and printing system

Abstract

The application provides a printing paper conveying and printing system, which comprises an arrangement unit and a plurality of printing units arranged side by side, the arrangement unit comprises a first conveying group, a paper arranging machine, a tray feeding belt and a discharging conveying belt; the first conveying group comprises a first conveying belt, a transfer mechanism and a second conveying belt connected in sequence; the paper arranging machine is arranged on the discharging side of the second conveying belt; the tray conveying belt is connected to one side of the transfer mechanism; the discharging conveying belt is connected to the side of the transfer mechanism away from the tray feeding belt; the printing unit comprises a paper feeding assembly, a printing machine, a paper discharging conveying belt, a tray conveying belt and two moving mechanisms; the paper feeding side of the printing machine is connected to the paper feeding conveying belt; the paper discharging conveying belt is connected to the paper discharging side of the printing machine; and the tray conveying belt is connected between the paper feeding conveying belt and the paper discharging conveying belt.

Description

Technical Field

[0001] This invention belongs to the technical field of paper transport equipment, and specifically relates to a printing paper transport and printing system. Background Technology

[0002] In the existing technology, the conveying process of the printing step is as follows: the opened paper stack is placed on a tray, and another tray is placed on top of it. The tray and paper stack are moved to the vicinity of the paper feeder by a trolley. Then, the tray and paper stack are placed into the paper feeder together. The clamps on the paper feeder are combined at the two trays to clamp the paper stack. After that, dust removal, flipping and other operations can be performed. The sorted paper is pushed to the printing system by the trolley along with the tray. The tray supports the whole stack of sorted paper on the paper feed side of the printing system, and multiple empty trays are placed on the paper output side of the printing system. The paper passes through the printing system in sequence and is stacked on the empty trays on the paper output side. Then, the printed paper can be recycled.

[0003] The manual intervention required in the above transportation process includes: transporting paper to the paper feeder, transporting the sorted paper to the printing system, and transporting the pallet to the output side of the printing system. Throughout this process, manual transfer of paper and pallets using trolleys is necessary, which disrupts the continuity between the paper feeder and the printing system, prolongs waiting time, and reduces work efficiency. Summary of the Invention

[0004] This invention provides a printing paper conveying and printing system, which aims to solve the technical problems of high manual involvement, long waiting time, and low work efficiency in the existing paper handling and printing conveying processes.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a printing paper conveying and printing system, a finishing unit, and multiple printing units arranged in parallel, wherein the finishing unit includes:

[0006] The first conveyor group includes a first conveyor belt, a transfer mechanism, and a second conveyor belt connected in sequence. The transfer mechanism includes a first turntable, a first motor that drives the first turntable to rotate around its own axis, and a conveying roller disposed on the first turntable.

[0007] The paper feeder is located on the discharge side of the second conveyor belt;

[0008] The pallet feed belt is connected to one side of the transfer mechanism;

[0009] The discharge conveyor belt is connected to the side of the transfer mechanism away from the pallet feed belt. The discharge conveyor belt is parallel to the pallet feed belt and forms an angle with the first conveyor belt.

[0010] The first rotating disc has a first state of abutting between the first conveying belt and the second conveying belt, and a second state of abutting between the tray feeding belt and the discharging conveying belt.

[0011] The printing unit comprises:

[0012] The paper feeding assembly comprises a paper feeding conveying belt abutting the discharging conveying belt, and a paper feeding mechanism arranged at the periphery of the paper feeding conveying belt.

[0013] The printing machine has a paper feeding side abutting the paper feeding conveying belt.

[0014] The paper discharging conveying belt abutting the paper discharging side of the printing machine.

[0015] The tray conveying belt abutting between the paper feeding conveying belt and the paper discharging conveying belt.

[0016] The two moving mechanisms are arranged between the paper feeding conveying belt and the feeding side of the tray conveying belt, and between the paper discharging conveying belt and the paper discharging side of the tray conveying belt.

[0017] The moving mechanisms are used to move the tray on the paper feeding conveying belt to the feeding side of the tray conveying belt, and move the tray on the discharging side of the tray conveying belt to the paper discharging conveying belt.

[0018] In a possible implementation, the transfer mechanism further comprises:

[0019] The main frame comprises four first vertical columns and a top plate fixed to the top ends of the four first vertical columns, wherein two first vertical columns are fixed to opposite sides of the discharging end of the first conveying belt, and the other two first vertical columns are fixed to opposite sides of the feeding end of the second conveying belt, and a first passing channel is formed between adjacent two first vertical columns.

[0020] The driving disc is rotationally connected to the top plate, and the driving disc is in transmission connection with the output shaft of the first motor.

[0021] The first rotating frame comprises a plurality of second vertical columns connected between the driving disc and the first rotating disc, and the plurality of second vertical columns are distributed on opposite sides of the first rotating disc, and the second vertical columns on the same side form a connection group, and a second passing channel is formed between adjacent two connection groups, and the second passing channel is used to coincide with different first passing channels.

[0022] In a possible implementation, the main frame further comprises four corner plates, the four corner plates are respectively fixed to the bottom ends of the four first vertical columns, the four corner plates are distributed at the four corners of the first rotating disc, and a first transition roller and a second transition roller are arranged on each of the corner plates;

[0023] When the first rotating disc is in the first state, the first transition roller is parallel to the conveying roller; and when the first rotating disc is in the second state, the second transition roller is parallel to the conveying roller.

[0024] In a possible implementation, a plurality of reset sensors are arranged on the top plate and uniformly distributed around the axis of the first rotating disc, and a plurality of positioning holes corresponding to the reset sensors are arranged on the driving disc.

[0025] In a possible implementation, the arrangement unit further comprises a tray transfer mechanism located on the side of the second conveying belt close to the tray feeding belt, and the tray transfer mechanism comprises:

[0026] a second rotating frame rotatable about the up-down direction;

[0027] a lifting rail slidingly connected to the second rotating frame in the up-down direction;

[0028] a grabbing tool comprising a sliding frame slidingly connected to the lifting rail, a driving mechanism fixed to the sliding frame, and two clamping plates in transmission connection with the driving mechanism, the driving mechanism having two opposite or back-and-forth moving telescopic ends, and the two clamping plates being respectively fixed to the two telescopic ends;

[0029] The grabbing tool has a third state located directly above the tray feeding belt and a fourth state located directly above the second conveying belt.

[0030] In a possible implementation, the driving mechanism comprises:

[0031] a second motor fixed to the sliding frame;

[0032] two sets of screw rod assemblies, the screw rods in each set of the screw rod assemblies being in transmission connection with the output shaft of the second motor, the threads on the outer peripheries of the two screw rods being opposite, and the sliding blocks in the two sets of screw rod assemblies being respectively fixed to the two clamping plates.

[0033] In a possible implementation, the second rotating frame comprises:

[0034] a base;

[0035] a third motor fixed to the base;

[0036] a second rotating disc in transmission connection with the output shaft of the third motor.

[0037] A vertical guide rail, a bottom end of which is fixedly connected to the rotating disc;

[0038] A protective shell, which covers the outer periphery of the second rotating disc and the output shaft of the third motor, is fixedly connected to the bottom end of the vertical guide rail and rotationally connected to the base.

[0039] In a possible implementation, the paper feeding mechanism comprises:

[0040] An outer frame, which is fixedly connected to the outer edge of the paper feeding conveyor belt, has a feeding port;

[0041] A lifting mechanism, which is arranged in the outer frame, comprises a lifting part that moves in the up-down direction;

[0042] A baffle, which is slidingly connected to the outer frame, is located on the opposite side of the feeding port, and a paper passing interval is formed between the bottom surface of the baffle and the paper feeding conveyor belt.

[0043] In a possible implementation, the paper feeding mechanism further comprises a plurality of rotating shafts that are rotationally connected to the inner wall of the outer frame and are distributed in the up-down direction, and the lifting mechanism comprises:

[0044] A fourth motor, an output shaft of which is drivingly connected to one of the rotating shafts;

[0045] A first belt, which forms the lifting part, is arranged around the outer periphery of the rotating shafts, and is fixedly connected to the top of the baffle.

[0046] In a possible implementation, the moving mechanism comprises:

[0047] A first chassis, which is connected between the paper feeding conveyor belt and the tray conveyor belt, penetrates the paper feeding conveyor belt and the tray conveyor belt respectively, and the part of the first chassis that penetrates the paper feeding conveyor belt is located on the outside of the paper feeding mechanism and is close to the feeding end of the paper feeding conveyor belt;

[0048] A second belt, which is sleeved on the first chassis;

[0049] A fifth motor, which is fixedly arranged on the first chassis, has an output shaft that is drivingly connected to the second belt.

[0050] Compared with the prior art, the printing paper conveying and printing system provided by the embodiment of the application can supply paper to multiple printing units through one arranging unit, can realize high work efficiency by adjusting the proportional relationship between the work efficiency of the arranging unit and the printing unit, the first conveying belt, the second conveying belt, the tray conveying belt and the discharging conveying belt share one transfer mechanism, which not only reduces the space occupation of the whole system, but also saves the material of the conveying belt and reduces the cost, the arranging unit can automatically convey the paper and the tray, the printing unit can automatically convey the tray to the paper discharging side, the whole process needs manual participation to put the tray on the top of the whole stack of paper and push the paper into the paper feeding mechanism, the process is relatively convenient to operate, compared with manually using a cart to transfer the paper, the time consumed by the transfer is greatly reduced, not only the labor intensity is reduced, but also the work efficiency is improved, after the paper enters the feeding mechanism in the printing unit, the tray can be automatically conveyed to the paper discharging side, which is convenient for recycling the printed paper, convenient for management and improves the automation degree. BRIEF DESCRIPTION OF DRAWINGS

[0051] Figure 1 A layout state schematic diagram of the printing paper conveying and printing system provided by the embodiment of the application is shown.

[0052] Figure 2 A three-dimensional structure schematic diagram of the arranging unit adopted by the embodiment of the application is shown.

[0053] Figure 3 A three-dimensional structure schematic diagram of the transfer mechanism adopted by the embodiment of the application is shown. Figure 1

[0054] Figure 4 A three-dimensional structure schematic diagram of the transfer mechanism adopted by the embodiment of the application is shown. Figure 2

[0055] Figure 5 A three-dimensional structure schematic diagram of the tray transfer mechanism adopted by the embodiment of the application is shown. Figure 1

[0056] Figure 6 A three-dimensional structure schematic diagram of the tray transfer mechanism adopted by the embodiment of the application is shown. Figure 2

[0057] Figure 7 An assembly state schematic diagram of the paper feeding assembly and the moving mechanism of the printing unit adopted by the embodiment of the application is shown.

[0058] REFERENCE SIGNS:

[0059] 10 - first conveying group; 11 - first conveying belt; 12 - second conveying belt; 13 - paper arranging machine;

[0060] ​​​​20 - transfer mechanism; 21 - first rotary table; 22 - first motor; 23 - conveying roller; 24 - main frame; 241 - first vertical column; 242 - top plate; 243 - corner plate; 244 - first transition roller; 245 - second transition roller; 25 - driving disc; 251 - positioning hole; 26 - first rotating frame; 27 - reset sensor;

[0061] 30 - tray transfer mechanism; 31 - second rotating frame; 311 - base; 312 - third motor; 313 - vertical guide rail; 314 - protective shell; 32 - lifting rail; 33 - grabbing tool; 331 - sliding frame; 332 - second motor; 333 - clamping plate; 334 - screw assembly; 335 - sliding block;

[0062] 40 - tray feeding belt;

[0063] 50 - discharging conveyor belt;

[0064] 60 - paper feeding assembly; 61 - paper feeding conveyor belt; 62 - paper feeding mechanism; 63 - outer frame; 64 - fourth motor; 65 - baffle; 66 - first belt; 67 - rotating shaft;

[0065] 70 - printing machine;

[0066] 80 - paper discharging conveyor belt;

[0067] 90 - tray conveyor belt;

[0068] 100 - moving mechanism; 101 - first base frame; 102 - second belt; 103 - fifth motor. DETAILED DESCRIPTION

[0069] In order to make the technical problems to be solved by the present application, technical solutions and beneficial effects more clearly understood, the present application will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the present application.

[0070] Please refer to Figures 1 to 7 , the paper conveying and printing system provided by the present application will be described. The paper conveying and printing system comprises an arrangement unit and a plurality of printing units arranged side by side;

[0071] The collating unit comprises a first conveying group 10, a paper sorting machine 13, a tray feeding belt 40 and a discharging conveying belt 50. The first conveying group 10 comprises a first conveying belt 11, a transfer mechanism 20 and a second conveying belt 12 connected in sequence. The transfer mechanism 20 comprises a first rotary disc 21, a first motor 22 driving the first rotary disc 21 to rotate about its own axis, and a conveying roller 23 arranged on the first rotary disc 21. The paper sorting machine 13 is arranged at the discharging side of the second conveying belt 12. The tray feeding belt 40 is connected to one side of the transfer mechanism 20. The discharging conveying belt 50 is connected to the side of the transfer mechanism 20 away from the tray feeding belt 40. The discharging conveying belt 50 is parallel to the tray feeding belt 40 and forms an angle with the first conveying belt 11. The first rotary disc 21 has a first state of being connected between the first conveying belt 11 and the second conveying belt 12, and a second state of being connected between the tray feeding belt 40 and the discharging conveying belt 50.

[0072] The printing unit comprises a paper feeding assembly 60, a printing machine 70, a paper discharging conveying belt 80, a tray conveying belt 90 and two moving mechanisms 100. The paper feeding assembly 60 comprises a paper feeding conveying belt 61 connected to the discharging conveying belt 50, and a paper feeding mechanism 62 arranged on the outer periphery of the paper feeding conveying belt 61. The printing machine 70 is connected to the paper feeding conveying belt 61 at the paper feeding side. The paper discharging conveying belt 80 is connected to the paper discharging side of the printing machine 70. The tray conveying belt 90 is connected between the paper feeding conveying belt 61 and the paper discharging conveying belt 80. One of the two moving mechanisms 100 is arranged between the paper feeding side of the paper feeding conveying belt 61 and the tray conveying belt 90, and the other is arranged between the paper discharging side of the paper discharging conveying belt 80 and the tray conveying belt 90. The moving mechanism 100 is used to move the tray on the paper feeding conveying belt 61 to the paper feeding side of the tray conveying belt 90, and move the tray on the paper discharging side of the tray conveying belt 90 to the paper discharging conveying belt 80.

[0073] It should be noted that the paper sorting machine 13 and the printing machine 70 in the embodiments of the present application are both existing devices, and the specific structure and working principle thereof will not be described herein.

[0074] In specific implementation, the paper feeding conveying belt 61 in the plurality of printing units can be arranged on one side of the discharging conveying belt 50. The transfer mechanism 20 can also be arranged at the position corresponding to the feeding end of the paper feeding conveying belt 61 to realize the turning of the conveying path. Alternatively, an AGV (Automatic Guided Vehicle) control system can be arranged between the discharging conveying belt 50 and the plurality of paper feeding conveying belts 61 to realize the transfer of the paper stack.

[0075] The specific working process of the printing paper conveying and printing system provided by the embodiment is as follows: the unsealed whole stack of printing paper is placed on the lower tray, the lower tray drives the whole stack of paper to enter from the first conveying belt 11, at this time the first rotating disc 21 is in the first state, the lower tray drives the whole stack of paper to move to the second conveying belt 12 after passing through the rotating shaft 67, the upper tray enters from the tray feeding belt 40, the upper tray is manually placed above the whole stack of paper in the second conveying belt 12, then the second conveying belt 12 drives the lower tray, the whole stack of paper and the upper tray to enter the paper arranging machine 13, the paper arranging machine 13 arranges the paper, then the upper tray is taken off, the lower tray drives the whole stack of paper to enter the transfer mechanism 20, at this time the first rotating disc 21 rotates and is connected with the discharging conveying belt 50, the arranged paper is transported out through the discharging conveying belt 50, the multiple stacks of paper enter the discharging conveying belt 50 in turn and then enter the paper feeding conveying belts 61 in multiple printing units, the multiple printing units work simultaneously, when the lower tray drives the arranged whole stack of paper to reach the outside of the paper feeding mechanism 62 at the paper feeding conveying belt 61, the whole stack of paper is pushed into the paper feeding mechanism, then the empty lower tray is driven by the moving mechanism 100 to enter the tray conveying belt 90, the tray conveying belt 90 conveys the lower tray to the paper discharging conveying belt 80, the lower tray waits at the bottom of the paper discharging side of the printing machine 70, the printed paper falls on the lower tray of the paper discharging conveying belt 80 in turn, and the whole conveying and printing process is completed.

[0076] It should be noted that the upper tray and the lower tray are the same in structure, and the difference is only that the positions and postures of the whole stack of paper placed in the upper tray and the lower tray are different, one is placed upward and the other is placed downward.

[0077] Compared with the prior art, the printing paper conveying and printing system provided by the application supplies paper for multiple printing units through one arranging unit, the proportion relationship between the working efficiency of the arranging unit and the working efficiency of the printing unit can be adjusted, so that the high working efficiency can be met; the first conveying belt 11, the second conveying belt 12, the tray conveying belt 90 and the discharging conveying belt 50 share one transfer mechanism 20, which not only reduces the space occupation of the whole system, but also saves the material of the conveying belt and reduces the cost; the conveying of the paper and the tray in the arranging unit can be automatically realized, the tray can be automatically conveyed to the paper discharging side in the printing unit, the whole process needs manual participation, that is, the upper tray is placed on the top of the whole stack of paper and the paper is pushed into the paper feeding mechanism 62, the process is relatively convenient to operate, compared with the manual transfer of the paper by using a cart, the time consumed by the transfer is greatly reduced, the labor intensity is reduced and the working efficiency is improved; after the paper enters the feeding mechanism in the printing unit, the tray can be automatically conveyed to the paper discharging side, which is convenient for the recycling of the printed paper, convenient for management and improves the degree of automation.

[0078] In some embodiments, one specific implementation of the above-mentioned transfer mechanism 20 can adopt the structure as shown in Figures 2 to 4 , and the specific implementation of the transfer mechanism 20 is shown in Figures 2 to 4The transfer mechanism 20 also includes a main frame 24, a drive disk 25, and a first rotating frame 26. The main frame 24 includes four first columns 241 and a top plate 242 fixed to the top of the four first columns 241. Two first columns 241 are fixed to opposite sides of the discharge end of the first conveyor belt 11, and the other two first columns 241 are fixed to opposite sides of the feed end of the second conveyor belt 12. A first material passage is formed between two adjacent first columns 241. The drive disk 25 is rotatably connected to the top plate 242 and is drively connected to the output shaft of the first motor 22. The first rotating frame 26 includes multiple second columns connected between the drive disk 25 and the first turntable 21. The multiple second columns are distributed on opposite sides of the first turntable 21. Multiple second columns on the same side form a connecting group, and a second material passage is formed between two adjacent connecting groups. The second material passage is used to overlap with different first material passages.

[0079] In operation, the output shaft of the first motor 22 drives the drive disk 25 (coaxial with the rotating disk) to rotate around its own axis. The drive disk 25 drives the first rotating frame 26 and the first rotating disk 21 to move synchronously, thereby realizing the switching of the first rotating disk 21 between the first state and the second state. The drive disk 25 is located on the top of the first rotating disk 21 and drives the first rotating disk 21 to rotate. Neither the first rotating frame 26 nor the main frame 24 will affect the first rotating disk 21 from passing through the paper. This structure has low requirements for terrain, does not require the installation of a deep pit in the ground and then driving the first rotating disk 21 to rotate at the bottom of the first rotating disk 21, which is convenient for installation and saves the factory's production costs.

[0080] It is easy to imagine that the conveying roller 23 on the first turntable 21 is driven to rotate by a motor, thereby realizing the pallet transportation process.

[0081] Specifically, the conveyor rollers 23 on the first turntable 21 are provided in multiple rows. The total width of the space occupied by the multiple rows of conveyor rollers 23 is greater than or equal to the width of the tray. In this embodiment, the conveyor rollers 23 with smaller shaft lengths are used compared to those with only one row, which makes them easier to replace and install. Furthermore, only one row needs to be connected to the motor.

[0082] In some embodiments, an improved implementation of the main frame 24 described above may employ, as follows: Figures 2 to 4 The structure shown. See also Figures 2 to 4The main frame 24 further comprises four corner plates 243, which are respectively fixed to the bottom ends of the four first vertical columns 241, and the four corner plates 243 are distributed at the four corners of the first rotating disc 21, and each of the four corner plates 243 is provided with a first transition roller 244 and a second transition roller 245; when the first rotating disc 21 is in the first state, the first transition roller 244 is parallel to the conveying roller 23; when the first rotating disc 21 is in the second state, the second transition roller 245 is parallel to the conveying roller 23. Since the first rotating disc 21 is circular and the tray and the main frame 24 are square, the conveying roller 23 on the first rotating disc 21 will be spaced apart from the first conveying belt 11 (the same is true for the second conveying belt 12, the tray feeding belt 40 and the discharging conveying belt 50), and the tray is easy to be stuck when passing through, and the first transition roller and the second transition roller 245 can ensure the smooth passing of the tray.

[0083] In some embodiments, the above-mentioned transfer mechanism 20 can adopt an improved implementation as shown in Figures 3 to 4 . Referring to Figures 3 to 4 , the top plate 242 is provided with a plurality of reset sensors 27 which are uniformly distributed around the axial direction of the first rotating disc 21, and the driving disc 25 is provided with a plurality of positioning holes 251 corresponding to the reset sensors 27. The included angle between two adjacent positioning holes 251 is equal to the angle that the first rotating disc 21 needs to rotate to switch between the first state and the second state, for example, the reset sensors 27 and the positioning holes 251 are both provided with four, and the radial included angle between the centers of two adjacent positioning holes 251 on the first rotating disc 21 is 90°, and the reset sensors 27 correspond to the positioning holes 251 in the up-down direction in the first state, and when the first rotating disc 21 rotates 90°, it switches to the second state, and at this time, the reset sensors 27 still correspond to the positioning holes 251, and through this structure, it can be identified whether the angle of the first rotating disc 21 is correct, and it can also be judged whether the first rotating disc 21 has an error in operation, so as to avoid the tray from being stuck.

[0084] Specifically, the first motor 22 and the reset sensor 27 can be connected to the control system, and the state of the reset sensor 27 is judged through the control system, so as to control the first motor 22 to drive the first rotating disc 21 to reset, which is convenient for operation.

[0085] The principle of the reset sensor 27 can adopt the infrared detection principle, and the distance to the nearest entity is detected to determine whether it corresponds to the positioning hole 251.

[0086] In some embodiments, an improved implementation of the above-mentioned sorting unit can adopt the structure as shown in Figures 1 to 2 , Figures 5 to 6 . Referring to Figures 1 to 2 , Figures 5 to 6The arrangement unit further comprises a tray transfer mechanism 30 located on the second conveying belt 12 close to the tray feeding belt 40, the tray transfer mechanism 30 comprises a second rotating frame 31, a lifting rail 32 and a grabbing tool 33, the second rotating frame 31 can rotate around the up-down direction (i.e. the rotating shaft of the second rotating frame 31 is parallel to the up-down direction); the lifting rail 32 is slidingly connected to the second rotating frame 31 along the up-down direction; the grabbing tool 33 comprises a sliding frame 331 slidingly connected to the lifting rail 32, a driving mechanism fixed to the sliding frame 331, and two clamping plates 333 in transmission connection with the driving mechanism, the driving mechanism has two opposite or back-and-forth moving telescopic ends, and the two clamping plates 333 are respectively fixed to the two telescopic ends; wherein the grabbing tool 33 has a third state located above the tray feeding belt 40, and a fourth state located above the second conveying belt 12.

[0087] When the paper enters the second conveying belt 12, the tray enters the tray feeding belt 40, at this time the grabbing tool 33 can be moved to above the tray of the tray feeding belt 40 (third state) through the second rotating frame 31, then the tray is grabbed and moved back above the second conveying belt 12 (fourth state), through the lifting of the lifting rail 32 on the second rotating frame 31, the grabbing tool 33 can be moved up and down, which facilitates the grabbing tool 33 to grab or put down the tray, and the two clamping plates 333 on the grabbing tool 33 move close to or away from each other to realize the grabbing and putting of the tray, which replaces the step of manually placing the tray on the top of the whole stack of paper, and further improves the work efficiency.

[0088] In some embodiments, a specific implementation of the above-mentioned driving mechanism can adopt the structure as shown in Figures 5 to 6 . Referring to Figures 5 to 6 , the driving mechanism comprises a second motor 332 and two sets of screw rod assemblies 334, the second motor 332 is fixed to the sliding frame 331; the screws in each set of screw rod assemblies 334 are in transmission connection with the output shaft of the second motor 332, and the threads on the outer periphery of the two screws are opposite, and the sliding blocks 335 in the two sets of screw rod assemblies 334 are respectively fixed to the two clamping plates 333. After the second motor 332 is started, the two sets of screw rod assemblies 334 rotate synchronously, and since the threads on the two screws are opposite, the paths of the sliding blocks 335 moving on the screws are also opposite, the sliding blocks 335 drive the two clamping plates 333 to move close to or away from each other, thereby realizing the grabbing and putting of the tray.

[0089] The rotation of the motor controls the rotation of the screw to drive the two clamping plates 333 to move close to or away from each other, which can ensure that the force of the clamping plates 333 grabbing the tray is appropriate, and avoid damaging the tray.

[0090] In some embodiments, a specific implementation of the above-mentioned second rotating frame 31 can adopt the structure as shown in Figures 5 to 6 . Referring to Figures 5 to 6The second rotating frame 31 comprises a base 311, a third motor 312, a second rotating disc, a vertical guide rail 313 and a protective shell 314. The third motor 312 is fixedly connected to the base 311. The second rotating disc is in transmission connection with an output shaft of the third motor 312. The bottom end of the vertical guide rail 313 is fixedly connected to the rotating disc. The protective shell 314 is arranged on the outer periphery of the second rotating disc and the output shaft of the third motor 312. The protective shell 314 is fixedly connected to the bottom end of the vertical guide rail 313 and is in rotational cooperation with the base 311.

[0091] The lifting rail 32 is in sliding cooperation with the vertical guide rail 313. The third motor 312 drives the second rotating disc to rotate, and the second rotating disc drives the vertical guide rail 313 to rotate. Since the third motor 312 and the second rotating disc are arranged at the bottom close to the ground, the protective shell 314 can effectively avoid the second rotating disc from being blocked by dust, so as to ensure that the feeding speed of the upper tray can be adapted to the conveying speed of the paper, and orderly production can be realized.

[0092] In some embodiments, a specific implementation of the paper feeding mechanism 62 described above can adopt a structure as shown in Figure 7 Referring to Figure 7 , the paper feeding mechanism 62 comprises an outer frame 63, a lifting mechanism and a baffle 65. The outer frame 63 is fixedly connected to the outer edge of the paper conveying belt 61. The outer frame 63 has a feeding port. The lifting mechanism is arranged on the outer frame 63. The lifting mechanism comprises a lifting part moving in the up-down direction. The baffle 65 is in sliding connection with the outer frame 63. The baffle 65 is located on the opposite side of the feeding port. The bottom surface of the baffle 65 and the paper conveying belt 61 form a paper passing interval.

[0093] When the lower tray drives the whole stack of paper to enter the paper conveying belt 61, the whole stack of paper is pushed into the outer frame 63. At this time, the whole stack of paper abuts against the baffle 65, so as to ensure the neatness of the paper. Then, the paper conveying belt 61 continuously rotates. The roller shaft part of the paper conveying belt 61 is a rubber wheel, which can drive the bottommost paper to enter the printing machine 70 through the paper passing interval. The circulation can realize the orderly entry of the paper into the printing machine 70, so as to avoid the influence of the stacked paper on the printing effect.

[0094] In some embodiments, a modified implementation of the paper feeding mechanism 62 described above can adopt a structure as shown in Figure 7 Referring to Figure 7The paper feeding mechanism 62 further comprises a plurality of rotating shafts 67 distributed in up and down directions and rotatingly connected to the inner wall of the outer frame 63, and the lifting mechanism comprises a fourth motor 64 and a first belt 66, the output shaft of the fourth motor 64 is in transmission connection with one of the rotating shafts 67, and the first belt 66 is arranged around the outer periphery of the rotating shafts 67 to form a lifting part, and the first belt 66 is fixed to the top of the baffle 65. The fourth motor 64 drives the first belt 66 to rotate around the rotating shafts 67, and the rotating shafts 67 drive the rotation under the friction of the first belt 66, so as to reduce the friction resistance between the rotating shafts 67 and the first belt 66, which not only facilitates the lifting adjustment of the baffle 65, but also prolongs the service life of the first belt 66; the first belt 66 drives the baffle 65 to lift when moving, so as to adjust the paper passing interval and avoid the large paper passing interval to cause the paper stacking.

[0095] Specifically, the baffle 65 is provided with a size scale, and different size scales represent different sizes of paper, so that the size of the paper stack entering the paper feeding mechanism 62 can be directly observed, so as to check whether the size of the paper corresponds to the setting of the layout in the printing machine 70.

[0096] In some embodiments, one specific implementation of the above-mentioned moving mechanism 100 can adopt the structure as shown in Figure 7 . Referring to Figure 7 , the moving mechanism 100 comprises a first chassis 101, a second belt 102 and a fifth motor 103, the first chassis 101 is connected between the paper feeding conveyor 61 and the tray conveying belt 90, the first chassis 101 penetrates the paper feeding conveyor 61 and the tray conveying belt 90 respectively, the part of the first chassis 101 penetrating the paper feeding conveyor 61 is located outside the paper feeding mechanism 62 and close to the feeding end of the paper feeding conveyor 61; the second belt 102 is sleeved on the first chassis 101; the fifth motor 103 is fixedly arranged on the first chassis 101, and the output shaft of the fifth motor 103 is in transmission connection with the second belt 102. After the lower tray drives the paper stack to reach the outside of the feeding port, the lower tray is just located at the part of the first chassis 101 penetrating the paper feeding conveyor 61, the paper is pushed into the paper feeding mechanism 62, then the paper feeding conveyor 61 is not started first, the fifth motor 103 is started first to drive the tray to the tray conveying belt 90, and then the paper feeding conveyor 61 is started, in the process of printing, the tray moves to the paper discharging conveyor 80, and the above process is repeated to drive the tray from the tray conveying belt 90 to the paper discharging conveyor 80.

[0097] The above only describes the preferred embodiments of the present application and should not be used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A printing paper conveying and printing system, characterized in that, The paper arranging machine comprises a paper arranging unit and a plurality of parallel printing units, the paper arranging unit comprises: a first conveying group comprising a first conveying belt, a transfer mechanism, and a second conveying belt connected in sequence, the transfer mechanism comprising a first rotating disc, a first motor driving the first rotating disc to rotate about its own axis, and a conveying roller arranged on the first rotating disc; a paper arranging machine arranged on the discharge side of the second conveying belt; a tray feeding belt abutting against one side of the transfer mechanism; a discharge conveying belt abutting against the side of the transfer mechanism away from the tray feeding belt, the discharge conveying belt being parallel to the tray feeding belt and forming an angle with the first conveying belt; wherein the first rotating disc has a first state abutting between the first conveying belt and the second conveying belt, and a second state abutting between the tray feeding belt and the discharge conveying belt; the printing unit comprising: a paper feeding assembly comprising a paper feeding conveying belt abutting against the discharge conveying belt, and a paper feeding mechanism arranged on the outer periphery of the paper feeding conveying belt; a printing machine with a paper feeding side abutting against the paper feeding conveying belt; a paper discharging conveying belt abutting against the paper discharging side of the printing machine; a tray conveying belt abutting between the paper feeding conveying belt and the paper discharging conveying belt; two moving mechanisms, a first moving mechanism arranged between the paper feeding side of the paper feeding conveying belt and the tray conveying belt, and a second moving mechanism arranged between the paper discharging side of the paper discharging conveying belt and the tray conveying belt; wherein the first moving mechanism is used to move the tray on the paper feeding conveying belt to the paper feeding side of the tray conveying belt, and the second moving mechanism is used to move the tray on the paper discharging side of the tray conveying belt to the paper discharging conveying belt.

2. The paper transport printing system according to claim 1, wherein The transfer mechanism further comprises: a main frame comprising four first vertical columns and a top plate fixed to the top ends of the four first vertical columns, wherein two first vertical columns are fixed to the opposite sides of the discharge end of the first conveying belt, and the other two first vertical columns are fixed to the opposite sides of the feeding end of the second conveying belt, and a first material passing channel is formed between adjacent two first vertical columns; a driving disc rotatably connected to the top plate, and the driving disc is in transmission connection with the output shaft of the first motor; a first rotating frame comprising a plurality of second vertical columns connected between the driving disc and the first rotating disc, a plurality of the second vertical columns are distributed on the opposite sides of the first rotating disc, a plurality of the second vertical columns on the same side form a connecting group, and a second material passing channel is formed between adjacent two connecting groups, and the second material passing channel is used to coincide with different first material passing channels.

3. The paper transport printing system according to claim 2, wherein The main frame further comprises four corner plates, and the four corner plates are respectively fixed to the bottom ends of the four first vertical columns, and the four corner plates are distributed at the four corners of the first rotating disc, and a first transition roller and a second transition roller are arranged on each corner plate; wherein when the first rotating disc is in the first state, the first transition roller is parallel to the conveying roller, and when the first rotating disc is in the second state, the second transition roller is parallel to the conveying roller.

4. The paper transport printing system according to claim 2, wherein The top plate is provided with a plurality of reset sensors uniformly distributed around the axis of the first rotating disc, and the driving disc is provided with a plurality of positioning holes corresponding to the reset sensors.

5. The paper transport printing system according to claim 1, wherein The arrangement unit further comprises a tray transfer mechanism located on one side of the second conveying belt close to the tray feeding belt, wherein the tray transfer mechanism comprises: a second rotating frame rotatable in the up-down direction; a lifting rail slidingly connected to the second rotating frame in the up-down direction; a grabbing tool comprising a sliding frame slidingly connected to the lifting rail, a driving mechanism fixed to the sliding frame, and two clamping plates in transmission connection with the driving mechanism, wherein the driving mechanism has two opposite or back-and-forth moving telescopic ends, and the two clamping plates are respectively fixed to the two telescopic ends; wherein the grabbing tool has a third state located directly above the tray feeding belt, and a fourth state located directly above the second conveying belt.

6. The paper transport printing system according to claim 5, wherein The driving mechanism comprises: a second motor fixed to the sliding frame; two sets of screw rod assemblies, wherein the screw rods in each set of screw rod assemblies are in transmission connection with the output shaft of the second motor, the threads on the outer peripheries of the two screw rods are opposite, and the sliding blocks in the two sets of screw rod assemblies are respectively fixed to the two clamping plates.

7. The paper transport printing system according to claim 6, wherein The second rotating frame comprises: a base; a third motor fixed to the base; a second rotating disc in transmission connection with the output shaft of the third motor; a vertical guide rail with a bottom end fixed to the second rotating disc; a protective shell covering the outer periphery of the second rotating disc and the output shaft of the third motor, wherein the protective shell is fixed to the bottom end of the vertical guide rail and rotationally matched with the base.

8. The paper transport printing system of claim 1, wherein The paper feeding mechanism comprises: an outer frame fixed to the outer edge of the paper conveying belt, wherein the outer frame has a feeding port; a lifting mechanism arranged in the outer frame, wherein the lifting mechanism comprises a lifting part moving in the up-down direction; a baffle slidingly connected to the outer frame, wherein the baffle is located on the opposite side of the feeding port, and a paper passing interval is formed between the bottom surface of the baffle and the paper conveying belt.

9. The paper transport printing system according to claim 8, wherein The paper feeding mechanism further comprises a plurality of rotating shafts arranged in up-down direction and rotationally connected to the inner wall of the outer frame, and the lifting mechanism comprises: a fourth motor, wherein the output shaft of the fourth motor is in transmission connection with one of the rotating shafts; a first belt, wherein the first belt is fixed to the top of the baffle and surrounds the outer periphery of the plurality of rotating shafts to form the lifting part.

10. The paper transport printing system of claim 1, wherein The moving mechanism comprises: a first base connected between the paper conveying belt and the tray conveying belt, wherein the first base penetrates through the paper conveying belt and the tray conveying belt respectively, and the part of the first base penetrating through the paper conveying belt is located on the outside of the paper feeding mechanism and close to the feeding end of the paper conveying belt; a second belt sleeved on the first base; a fifth motor fixed to the first base, wherein the output shaft of the fifth motor is in transmission connection with the second belt.

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