Code spraying device for paper pieces

By adjusting the design of the frame and conveying mechanism, the problem of position and angle differences when the inkjet terminal prints at different positions is solved, the simplicity and accuracy of the coding process are achieved, and the overall efficiency of the coding device is improved.

CN223407703UActive Publication Date: 2025-10-03ZHE JIANG DE BANG YIN WU YOU XIAN GONG SI
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Patent Information

Application Number
CN202423238427.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-10-03
Estimated Expiration
2034-12-25

AI Technical Summary

Technical Problem

When printing different types of codes at different locations on the inkjet printer, the positions and angles are likely to differ, making the coding process cumbersome and inaccurate.

Method used

The adjustment frame is composed of an adjustment vertical rod, an adjustment horizontal rod, and a fixed longitudinal rod. Combined with the adjustable fixing parts and the conveying mechanism, it can achieve multi-dimensional adjustment and stable fixation of the inkjet printer terminal. The smooth transportation of the conveyor belt and roller body ensures the accuracy of the inkjet printer position.

Benefits of technology

Through multi-dimensional adjustment and stable fixation, the difference in coding position is avoided, the coding accuracy is ensured, and the simplicity and efficiency of the coding process are improved.

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Abstract

The utility model relates to the technical field of code spraying printing, in particular to a paper piece code spraying device. The ink-jet printing device comprises an ink-jet printing head, an adjusting frame body for installing the ink-jet printing head, a printing table surface for arranging the ink-jet printing head and the adjusting frame body, and a conveying mechanism arranged in the length direction of the printing table surface and used for conveying paper pieces to the position below the ink-jet printing head. The adjusting frame body comprises an adjusting vertical rod vertically arranged on one side of the printing table top, an adjusting transverse rod horizontally arranged above the printing table top and vertically installed on the adjusting vertical rod, and a fixing longitudinal rod arranged in the conveying direction of paper pieces and installed on the adjusting transverse rod. The code spraying head is fixedly connected to the end, away from the adjusting transverse rod, of the fixing longitudinal rod, and the adjusting vertical rod and the adjusting transverse rod are each provided with an adjustable fixing piece. The code spraying device has the advantages that the problem that the code spraying position or angle is prone to difference is solved, and the code spraying process is simpler and more convenient.
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Description

Technical Field

[0001] The present application relates to the technical field of inkjet printing, and in particular to a paper-based inkjet printing device. Background Art

[0002] A coding device is a device used to print codes on paper, plastic, or other materials. In certificate printing, the digital serial number, barcode, QR code, and other information on the certificate can be transferred to the paper through the inkjet printer.

[0003] In related technologies, the inkjet head is the core module of the coding device. It contains many tiny nozzles. Ink is ejected from the nozzles under the action of pressure or piezoelectric ceramics, thereby spraying the ink into tiny droplets onto the paper. The ink adheres to the surface of the paper, achieving high-resolution coding.

[0004] In response to the aforementioned technologies, the inkjet terminal needs to print different types of codes at different locations on the certificate to meet different certificate production requirements. Printing different types of codes usually requires multiple coding operations, which is cumbersome and may result in differences in the location and angle of each coding operation. Utility Model Content

[0005] In order to improve the problem of easy differences in coding position or angle and make the coding process simpler, the present application provides a paper coding device.

[0006] The paper part coding device provided in this application adopts the following technical solution:

[0007] A paper coding device comprises a printing station, an adjustment frame for mounting the printing station, a printing table on which the printing station and the adjustment frame are arranged, and a conveying mechanism provided along the length direction of the printing table and used for conveying paper to below the printing station;

[0008] The adjustment frame includes an adjustment vertical rod vertically arranged on one side of the printing table, an adjustment cross bar horizontally arranged above the printing table and vertically installed on the adjustment vertical rod, and a fixed longitudinal rod arranged along the conveying direction of the paper piece and installed on the adjustment cross bar. The inkjet printer terminal is fixedly connected to one end of the fixed longitudinal rod away from the adjustment cross bar, and adjustable fixing parts are provided on the adjustment vertical rod and the adjustment cross bar.

[0009] By adopting the above technical solution, the adjustment frame consists of an adjustment pole, an adjustment crossbar, and a fixed longitudinal rod. The adjustment pole is set vertically on one side of the printing table, the adjustment crossbar is perpendicular to the adjustment pole, and the fixed longitudinal rod is installed on the adjustment crossbar along the direction of paper conveyance. The inkjet printer terminal is fixed to the end of the fixed longitudinal rod away from the adjustment crossbar, so that the inkjet printer terminal has multi-dimensional adjustment function. The vertical dimension can adjust the upper and lower positions of the inkjet printer by changing the height of the adjustment pole. The horizontal dimension can adjust the position of the adjustment crossbar relative to the adjustment pole to control the left and right direction of the inkjet printer. The horizontal and vertical dimensions rely on the PLC control of the inkjet printer terminal to determine the front and back positions, avoiding differences in the inkjet printer position and ensuring accurate placement.

[0010] Furthermore, the adjustable fixing member includes a first clamping block, a second clamping block, a third clamping block, a locking pin for connecting the first clamping block and the second clamping block, and an adjusting pin for connecting the second clamping block and the third clamping block, and an adjusting handle is fixedly connected to the end of the adjusting pin;

[0011] The first clamping block and the second clamping block are symmetrically provided with first U-shaped grooves on two opposite side surfaces for clamping on both sides of the rod body, and the second clamping block and the third clamping block are symmetrically provided with second U-shaped grooves on two opposite side surfaces for clamping on both sides of the rod body. The opening directions of the first U-shaped groove and the second U-shaped groove are perpendicular to each other, and the first U-shaped groove and the second U-shaped groove on the second clamping block are respectively opened on both sides facing back to back.

[0012] By adopting this technical solution, the first and second clamping blocks are clamped to the sides of the rod through the first U-shaped groove and locked with a locking pin. The second and third clamping blocks are clamped to the sides of the rod through the second U-shaped groove and locked with an adjustment pin. This provides a reliable support point for the connection between the overall structure and the rod, effectively preventing displacement deviation caused by unstable fixation during the coding process and ensuring accurate coding position. The first and second U-shaped grooves are perpendicular to each other and are located on either side of the second clamping block, allowing each clamping block to clamp the rod perpendicular to each other.

[0013] Furthermore, the first clamping block is integrally connected to first connecting protrusions on both sides, and the second clamping block is integrally connected to a second connecting protrusion on a side close to the first clamping block at a position close to the first connecting protrusion, the locking pin passes through the first connecting protrusion and is provided on the second connecting protrusion, and the locking pin is threadedly connected to the second connecting protrusion;

[0014] The second clamping block is integrally connected with a third connecting protrusion on the adjacent side surface where the second connecting protrusion is provided on one side close to the third clamping block, and the two sides of the third clamping block are integrally connected with fourth connecting protrusions at adjacent positions of the third connecting protrusion. The adjusting pin passes through the fourth connecting protrusion and is penetrated by the third connecting protrusion. The adjusting pin is slidingly connected to the fourth connecting protrusion, and the adjusting pin is threadedly connected to the third connecting protrusion. The end of the adjusting pin protrudes from the fourth connecting protrusion and is fixedly connected to the adjusting handle.

[0015] By adopting this technical solution, the locking pin passes through the first connecting protrusion and is threadedly connected to the second connecting protrusion, allowing the first and second clamping blocks to fit tightly against the rod body, enhancing the clamping stability on the corresponding rod. The adjustment pin is threadedly connected to the third connecting protrusion and slidably connected to the fourth connecting protrusion, ensuring that the second and third clamping blocks are securely clamped to the rod body while also allowing for flexible operation during adjustment. The protruding end of the adjustment pin is connected to the adjustment handle. The operator turns the handle, and the threaded engagement between the adjustment pin and the third connecting protrusion allows for precise control of the opening and closing of the third clamping block relative to the second clamping block.

[0016] Furthermore, the adjusting pin protrudes from the outer wall of the fourth connecting protrusion and is sleeved and fixedly connected with a limiting protrusion ring for abutting against the fourth connecting protrusion.

[0017] By adopting the above technical solution, a limiting convex ring is sleeved and fixedly connected to the outer wall of the adjusting pin protruding from the fourth connecting protrusion. During the process of adjusting the coding angle, the limiting convex ring abuts against the fourth connecting protrusion to define the movable range of the adjusting pin.

[0018] Furthermore, the printing table is provided with side panels on both sides, and the conveying mechanism includes an active roller, a driven roller and a plurality of conveying belts which are rotatably connected between the two side panels and are tensioned between the active roller and the driven roller and used to convey paper materials, and each of the conveying belts is arranged at intervals on the active roller and the driven roller.

[0019] By employing this technical solution, multiple conveyor belts are tensioned between active and passive rollers, evenly supporting paper items of various sizes. This prevents skew and jamming during transport, and prevents deviations in the inkjet printing position caused by conveying anomalies. The active rollers act as the power source, driving the passive rollers, which work in concert with each other through friction between the belts and rollers. This ensures continuous, stable, and precise delivery of paper items to the bottom of the inkjet printing station, ensuring smooth inkjet printing operations and improving overall production efficiency.

[0020] Furthermore, a mounting cross bar is provided above the printing table on the side close to the driven roller, and the mounting cross bar is fixedly connected between the two side plates. A plurality of pressure plates for pressing paper pieces are arranged at intervals on the mounting cross bar, and one end of the pressure plate is fixedly connected to the mounting cross bar, and the end of the pressure plate away from the mounting cross bar is inclined toward the printing table for pressing the paper piece on the conveyor belt.

[0021] With this technical solution, one end of the pressure plate is fixed to the mounting crossbar, while the other end extends obliquely toward the printing table, leveraging its shape to apply force to the paper items on the conveyor belt. As the paper items are conveyed on the belt, the pressure plate effectively limits any movement or displacement caused by equipment vibration, inertia, and other factors, keeping them in close contact with the belt. This reduces the probability of coding position errors and ensures accurate and standardized coding.

[0022] Furthermore, the printing table is provided with a receiving box for holding the paper pieces after coding on a side close to the active roller, and the printing table is provided with a limit support mechanism for supporting the paper pieces to be coded on a side away from the receiving box. The printing table is also provided with a transfer mechanism between the mounting cross bar and the limit support mechanism for transferring the paper pieces to be coded at the position of the limit support mechanism to the conveyor belt;

[0023] Mounting shells are provided on both sides of the printing table, and the transfer mechanism is provided between the two mounting shells. The transfer mechanism includes a picking assembly for picking up the first layer of paper pieces, a pressure wheel assembly for pressing and transferring the paper pieces, and a swing auxiliary assembly for driving the picking assembly to swing toward one side of the pressure wheel assembly.

[0024] By adopting the above technical solution, the receiving box provides an orderly storage space for the paper parts after coding, which is convenient for subsequent sorting and collection, and conforms to the continuous operation process. The limit support mechanism can firmly support the paper parts to be coded, preventing them from displacement and tipping over during the waiting process, ensuring that the first piece of paper to be coded is always in the precise starting position, which is conducive to subsequent precise grasping and conveying. In the transfer mechanism, the picking component accurately picks up the first layer of paper parts at the limit support mechanism, accurately separates single sheets of paper and grasps them smoothly, avoiding picking up multiple sheets at a time or damaging the paper. The pressure wheel assembly fits tightly to the paper by pressing, and cooperates with the swing auxiliary assembly to drive the picking assembly to swing, and transfers the paper to be coded to the conveyor belt.

[0025] Furthermore, the pickup assembly includes a ventilation main pipe and a plurality of negative pressure adsorption heads spaced apart from and connected to the ventilation main pipe, the negative pressure adsorption heads facing the position limiting support mechanism for adsorbing the first layer of paper pieces;

[0026] The two mounting shells are provided with a supporting cross bar on the side of the ventilation main pipe away from the pressure wheel assembly. The two ends of the supporting cross bar are rotatably connected to the two mounting shells. A plurality of connecting parts for fixed connection with the ventilation main pipe are arranged at intervals on the supporting cross bar. The swing auxiliary assembly is arranged in the mounting shell and abuts against the ventilation main pipe.

[0027] By adopting the above technical solution, the ventilation main is connected to each negative pressure adsorption head to ensure stable airflow transmission. The negative pressure adsorption head is precisely oriented towards the limit support mechanism, using negative pressure suction to firmly adsorb the first layer of paper parts, reliably grabbing single sheets of paper, and effectively dealing with possible adhesion and dislocation when paper is stacked. The combination of the supporting crossbar and the connecting parts further stabilizes the picking component structure. The swing auxiliary component installed in the shell is in contact with the ventilation main, driving the ventilation main to drive the negative pressure adsorption head to swing toward the side of the pressure roller assembly, so that the adsorbed paper is smoothly transferred to the conveyor belt. The overall transfer process is coherent and accurate, improving the operating efficiency of the inkjet printer.

[0028] Furthermore, the pressure wheel assembly includes a pressure wheel mounting rod fixedly connected between the two mounting shells and located between the ventilation main pipe and the mounting cross bar, and a plurality of pressure wheels arranged at intervals and rotatably connected to the pressure wheel mounting rod. Above the printing table, there are a plurality of adjacently arranged pad rollers rotatably connected between the two mounting shells and used to cooperate with the pressure wheel assembly. The pad rollers are located below the pressure wheel and a gap is left between the pressure wheel and the pressure wheel for paper members to pass through.

[0029] By adopting this technical solution, the pinch roller mounting rod is connected between the two mounting housings. Multiple pinch rollers are arranged in intervals and rotate flexibly. The pinch rollers cooperate with the pad rollers below, which are rotatably connected to the printing table. The pad rollers are arranged adjacently and evenly support the paper. The gap between the pinch rollers and the pad rollers allows the paper to pass smoothly. The pinch rollers apply moderate downward pressure, making the paper fit tightly against the pad rollers. The pressure of the pinch rollers pushes the paper forward and cooperates with the pad rollers to guide the paper to the conveyor belt for continuous transportation, improving the overall working efficiency of the device and the stability of the inkjet printing operation.

[0030] Furthermore, the limit support mechanism includes a fixed frame fixedly connected between the two mounting shells, a limit side plate slidably mounted on the fixed frame and used to abut against both sides of the paper piece, a limit stopper slidably mounted on the fixed frame and used to abut against the side of the paper piece away from the picking component, and a pressure piece slidably mounted on the fixed frame and used to press the upper side of the paper piece, and the limit side plate, the limit stopper and the pressure piece are all provided with a locking piece for locking on the fixed frame.

[0031] By adopting the above technical solution, the fixed frame is connected between the two mounting shells, and the limiting side plate is slidably installed on the fixed frame. The position can be flexibly adjusted according to the width of the paper piece, and it is precisely abutted against both sides of the paper piece, effectively limiting the lateral movement of the paper. The limiting block is slidably installed on the fixed frame and abuts against the side of the paper piece away from the pickup assembly. On the one hand, it prevents the paper from falling, and on the other hand, it prevents the paper from moving forward or backward while waiting for coding, ensuring that the first piece of paper to be coded is always in the preset accurate starting position. The pressure piece applies moderate pressure from above, pressing against the upper side of the paper piece to prevent the paper from tilting or turning over due to factors such as equipment vibration and airflow disturbance, and assisting the limiting side plate and the limiting block to make the overall posture of the paper more flat.

[0032] In summary, this application includes at least one of the following beneficial technical effects:

[0033] 1. The frame is adjustable by adjusting the vertical, horizontal, and longitudinal rods to achieve precise positioning of the inkjet printer up and down, left and right, and front and back. The adjustable fixings firmly clamp the printer, and the slots and pins work together to prevent displacement. The conveyor belt is equipped with rollers to provide stable support and smooth transportation, eliminating position deviations caused by shaking or jamming, and ensuring accurate inkjet printing.

[0034] 2. The pressing plate is tilted to suppress paper parts from jumping during transmission and ensure accurate and standardized positioning. The receiving box stores finished products in an orderly manner, and the limit support mechanism stabilizes the parts to be printed. The two are tightly connected. The pressing wheel and the pad roller work in perfect harmony, applying appropriate pressure to push the paper forward, avoiding paper abnormalities and ensuring continuous and stable paper supply, laying a solid foundation for coding quality and enhancing operational continuity.

[0035] 3. The transfer mechanism operates efficiently, with the ventilation main pipe and suction head working together to precisely pick up paper and prevent sticking. The support and swing components facilitate smooth transfer. Each limiter and support component performs its function, with side panels controlling width, stops providing positioning, and pressure elements preventing warping. These components align the paper and improve the success rate of paper pickup, paving the way for efficient coding and enhancing overall performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of the overall structure of a paper coding device according to an embodiment of the present application.

[0037] Figure 2 It is a schematic diagram of the overall structure of the adjustment frame in the embodiment of the present application.

[0038] Figure 3 It is a schematic diagram of the structural explosion of the adjustable fixing member in the embodiment of the present application.

[0039] Figure 4 It is a structural schematic diagram of the paper part coding device of the embodiment of the present application after the shell is removed and installed.

[0040] Figure 5 yes Figure 4An enlarged schematic diagram of the structure of the swing assist assembly in part A.

[0041] Explanation of reference numerals: 1. printing table; 11. side panel; 12. mounting shell; 2. printing terminal; 3. adjusting frame; 31. adjusting vertical pole; 311. fixing short pole; 32. adjusting horizontal pole; 33. fixing longitudinal pole; 34. adjustable fixing member; 341. first clamping block; 3411. first U-shaped groove; 3412. first connecting protrusion; 342. second clamping block; 3421. second connecting protrusion; 3422. third connecting protrusion; 343. third clamping block; 3431. second U-shaped groove; 3432. fourth connecting protrusion; 344. locking pin; 345. adjusting pin; 3451. limiting protrusion; 346. adjusting handle; 4. conveyor Structure; 41. Active roller; 42. Driven roller; 43. Conveyor belt; 44. Mounting cross bar; 441. Pressing plate; 5. Position-limiting supporting mechanism; 51. Fixed frame; 52. Position-limiting side plate; 53. Position-limiting block; 54. Pressure piece; 55. Locking piece; 6. Transfer mechanism; 61. Pick-up assembly; 611. Ventilation main pipe; 6111. Ventilation hose; 6112. Abutment sleeve; 612. Negative pressure adsorption head; 613. Support cross bar; 6131. ​​Connecting piece; 62. Pressure roller assembly; 621. Pressure roller mounting rod; 622. Pressure roller; 623. Pad roller; 63. Swing auxiliary assembly; 631. Cam; 632. Motor; 7. Receiving box. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of this application more clear, the following Figure 1-5 And embodiments, the present application is further described in detail.

[0043] The embodiment of the present application discloses a paper part coding device. Figure 1 The paper part coding device includes a printing table 1, a printing station 2, an adjustment frame 3 for installing the printing station 2, a conveying mechanism 4 for conveying the paper part to the bottom of the printing station 2, a limiting supporting mechanism 5 for supporting the paper part to be coded, a transfer mechanism 6 for transferring the paper part to be coded at the position of the limiting supporting mechanism 5 to the conveying mechanism 4, and a receiving box 7 for holding the paper part after coding.

[0044] Two side panels 11 are vertically mounted and fixedly connected on either side of the printing table 1. A conveyor mechanism 4 is installed between these two side panels 11 to transport paper materials. An adjustment frame 3 is mounted on the outer wall of the side panels 11, and a spray nozzle 2 is mounted on the adjustment frame 3 and aligned above the conveyor mechanism 4. Mounting housings 12 are also symmetrically arranged on either side of the printing table 1. These mounting housings 12 are positioned adjacent to and fixedly connected to the side panels 11. The transfer mechanism 6 and the position-limiting support mechanism 5 are both mounted between these two mounting housings 12. A receiving box 7 is located on the side of the printing table 1 away from the position-limiting support mechanism 5.

[0045] Reference Figure 1 and Figure 2 The adjustment frame 3 includes an adjustment vertical rod 31 arranged in the vertical direction, an adjustment cross rod 32 arranged in the horizontal direction, a fixed longitudinal rod 33, and an adjustable fixing part 34 for connecting each rod. Among them, the adjustment cross rod 32 is perpendicular to the conveying direction of the device, and the fixed longitudinal rod 33 is parallel to the conveying direction of the device. The adjustment vertical rod 31 is vertically arranged at the lower end position and is integrally connected with a connecting protrusion, and the connecting protrusion is fixed to the side plate 11 by a bolt thread. The adjustment cross rod 32 is installed on the upper end of the adjustment vertical rod 31 through the adjustable fixing part 34, and the fixed longitudinal rod 33 is installed on the end of the adjustment cross rod 32 away from the adjustment vertical rod 31 through the adjustable fixing part 34. The spray terminal 2 is fixedly connected to the end of the fixed longitudinal rod 33 away from the adjustment cross rod 32. In this embodiment, the number of the spray terminal 2 is preferably two, and the number of the adjustment frame 3 is symmetrically two. The two groups of adjustment frames 3 are symmetrically installed on both sides of the printing table 1.

[0046] Reference Figure 2 and Figure 3 The adjustable fixing member 34 includes a first clamping block 341, a second clamping block 342, a third clamping block 343, a locking pin 344, an adjustment pin 345, and an adjustment handle 346. The locking pin 344 is used to connect the first clamping block 341 and the second clamping block 342, and the adjustment pin 345 is used to connect the second clamping block 342 and the third clamping block 343. The first clamping block 341 and the second clamping block 342 are symmetrically provided with first U-shaped grooves 3411 on opposite sides for clamping on both sides of the rod body. The second clamping block 342 and the third clamping block 343 are symmetrically provided with second U-shaped grooves 3431 on opposite sides for clamping on both sides of the rod body. The first U-shaped grooves 3411 and the second U-shaped grooves 3431 are provided in perpendicular directions to each other. The first U-shaped groove 3411 and the second U-shaped groove 3431 on the second clamping block 342 are respectively provided on opposite sides.

[0047] The first clamping block 341 has first connecting protrusions 3412 integrally connected to both sides. The second clamping block 342 has second connecting protrusions 3421 integrally connected to the side adjacent to the first connecting protrusions 3412, located on the side closest to the first clamping block 341. A locking pin 344 passes through the first connecting protrusion 3412 and is threadedly connected to the second connecting protrusion 3421. The second clamping block 342 has third connecting protrusions 3422 integrally connected to the side adjacent to the second connecting protrusion 3421, located on the side closest to the third clamping block 343. Fourth connecting protrusions 3432 are integrally connected to both sides of the third clamping block 343, located adjacent to the third connecting protrusions 3422. An adjustment pin 345 passes through the fourth connecting protrusion 3432 and is threadedly connected to the third connecting protrusion 3422. The adjustment pin 345 is slidably connected to the fourth connecting protrusion 3432 and is threadedly connected to the third connecting protrusion 3422. The end of the adjustment pin 345 protrudes from the fourth connecting protrusion 3432, and the adjustment handle 346 is fixedly connected to the end of the adjustment pin 345. A limiting protrusion 3451 is sleeved and fixedly connected to the outer wall of the fourth connecting protrusion 3432 of the adjustment pin 345. When the adjustment pin 345 is installed on the fourth connecting protrusion 3432 of the third clamping block 343, the limiting protrusion 3451 abuts against the fourth connecting protrusion 3432.

[0048] Reference Figure 1 and Figure 4 The conveying mechanism 4 includes a driving roller 41, a driven roller 42, and a conveyor belt 43. The driving roller 41 is rotatably connected between the two side plates 11 and is located on the side of the printing platform near the receiving box 7. The driven roller 42 is rotatably connected between the two side plates 11. In this embodiment, multiple transmission belts are provided, each of which is tensioned between the driving roller 41 and the driven roller 42 and is evenly spaced along the length of the driving roller 41 and the driven roller 42.

[0049] A mounting crossbar 44 is provided above the printing table 1, near the side of the driven roller 42. The mounting crossbar 44 is fixedly connected between the two side plates 11 and is located diagonally above the driven roller 42. Multiple pressure plates 441 are spaced apart on the mounting crossbar 44. One end of the pressure plate 441 is fixedly connected to the mounting crossbar 44, and the end of the pressure plate 441, away from the mounting crossbar 44, is tilted toward the printing table 1 to press against the paper on the conveyor belt 43.

[0050] The transfer mechanism 6 is arranged between the two mounting shells 12. The transfer mechanism 6 includes a picking assembly 61 for picking up the first layer of paper pieces, a pressure wheel assembly 62 for pressing and transferring the paper pieces, and a swing auxiliary assembly 63 for driving the picking assembly 61 to swing toward the side of the pressure wheel assembly 62.

[0051] The pickup assembly 61 includes a ventilation main pipe 611 and a plurality of negative pressure suction heads 612 spaced apart on the lower side of the ventilation main pipe 611 and connected to the ventilation main pipe 611. The end of the ventilation main pipe 611 is connected to a ventilation hose 6111 for connecting to an air pump. The negative pressure suction head 612 faces the limiting support mechanism 5 to adsorb the first page paper. The two mounting shells 12 are provided with a support cross bar 613 on the side of the ventilation main pipe 611 away from the pressure roller assembly 62. The two ends of the support cross bar 613 are rotatably connected to the two mounting shells 12. A plurality of connectors 6131 for fixed connection to the ventilation main pipe 611 are spaced apart on the support cross bar 613. The swing auxiliary assembly 63 is provided in the mounting shell 12.

[0052] Reference Figure 4 and Figure 5 The end of the ventilation main pipe 611 is sleeved and fixedly connected with an abutment sleeve 6112 that cooperates with the swing assist assembly 63. The swing assist assembly 63 includes a cam 631 for abutting the abutment sleeve 6112 and a motor 632 for driving the cam 631 to rotate. When the motor 632 drives the cam 631 to rotate, the cam 631 and the abutment sleeve 6112 abut each other, thereby driving the ventilation main pipe 611 to move up and down. Since the ventilation main pipe 611 is fixedly connected to the support crossbar 613 via the connecting piece 6131, the ventilation main pipe 611 moves up and down while driving the negative pressure adsorption head 612 to swing.

[0053] The pressure roller assembly 62 includes a pressure roller mounting rod 621 and a pressure roller 622. The pressure roller mounting rod 621 is fixedly connected between the two mounting housings 12 and located between the ventilation main 611 and the mounting crossbar 44. Multiple pressure rollers 622 are evenly spaced and rotatably connected to the pressure roller mounting rod 621. A plurality of adjacent pad rollers 623 are rotatably connected above the printing table 1 between the two mounting housings 12. The pad rollers 623 are positioned below the pressure rollers 622, with a gap between them for paper to pass through. The pressure rollers 622 cooperate with pad rollers 623, which are rotatably connected below and above the printing table 1. The pad rollers 623 are arranged adjacent to each other and provide uniform support for the paper. The paper smoothly passes through the gap between the pressure rollers 622 and the pad rollers 623. The pressure rollers 622 apply moderate downward pressure, ensuring a tight fit against the pad rollers 623. The pressure of the pressure rollers 622 pushes the paper forward and, in conjunction with the pad rollers 623, guides the paper toward the conveyor belt 43 for continuous transport.

[0054] The position-limiting support mechanism 5 includes a fixed frame 51 fixedly connected between the two mounting housings 12, a position-limiting side plate 52 slidably mounted on the fixed frame 51 and configured to abut against both sides of the paper piece, a position-limiting stopper 53 slidably mounted on the fixed frame 51 and configured to abut against the side of the paper piece away from the pickup assembly 61, and a pressure member 54 slidably mounted on the fixed frame 51 and configured to press against the upper side of the paper piece. The position-limiting side plate 52, the position-limiting stopper 53, and the pressure member 54 are each provided with a locking member 55 for locking to the fixed frame 51. In this embodiment, the locking member 55 comprises a bolt and an adjusting nut.

[0055] The implementation principle of a paper-based coding device according to an embodiment of the present application is as follows: the various mechanisms of the paper-based coding device work together to achieve efficient coding operations. Side panels 11 are provided on both sides of the printing table 1, carrying components such as an adjustment frame 3 and a conveying mechanism 4. The adjustment frame 3 is composed of an adjustment vertical rod 31, a horizontal rod, a longitudinal rod and an adjustable fixing member 34 and is provided for installation on the inkjet terminal 2. With the help of clamps, locking pins 344, adjustment pins 345, etc., multi-dimensional precise adjustment and stable fixation are achieved to ensure that the coding position is accurate and without deviation. In the conveying mechanism 4, the active roller 41 drives, and multiple conveying belts 43 cooperate with the driven roller 42 to stably support and convey the paper parts. The upper pressure plate 441 prevents the paper parts from jumping and shifting. In the transfer mechanism 6, the pickup assembly 61 uses a ventilation main 611 and a negative pressure suction head 612 to absorb the first layer of paper. A support crossbar 613 stabilizes the structure, and a swing assist assembly 63 drives the swing. This, in conjunction with the pressure roller assembly 62 and pad roller 623, transfers the paper from the position-limiting support mechanism 5 to the conveyor belt 43. The position-limiting support mechanism 5 relies on a fixed frame 51, position-limiting side panels 52, a stopper, and a pressure member 54. The locking member 55 regulates the placement of paper sheets, ensuring a precise starting position. A receiving box 7 is located to the side, orderly storing the coded paper products, forming a complete and efficient closed-loop operation.

[0056] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A paper-based inkjet printer, characterized by: It comprises a spraying station (2), an adjusting frame (3) for mounting the spraying station (2), a printing table (1) for arranging the spraying station (2) and the adjusting frame (3), and a conveying mechanism (4) arranged along the length direction of the printing table (1) and used for conveying paper pieces to the bottom of the spraying station (2); The adjustment frame (3) includes an adjustment vertical rod (31) vertically arranged on one side of the printing table (1), an adjustment cross rod (32) horizontally arranged above the printing table (1) and vertically installed on the adjustment vertical rod (31), and a fixed longitudinal rod (33) arranged along the conveying direction of the paper piece and installed on the adjustment cross rod (32). The printing terminal (2) is fixedly connected to one end of the fixed longitudinal rod (33) away from the adjustment cross rod (32). The adjustment vertical rod (31) and the adjustment cross rod (32) are both provided with adjustable fixing parts (34).

2. A paper part coding device according to claim 1, characterized in that: The adjustable fixing member (34) includes a first clamping block (341), a second clamping block (342), a third clamping block (343), a locking pin (344) for connecting the first clamping block (341) and the second clamping block (342), and an adjusting pin (345) for connecting the second clamping block (342) and the third clamping block (343), and an adjusting handle (346) is fixedly connected to the end of the adjusting pin (345); The first clamping block (341) and the second clamping block (342) are symmetrically provided with first U-shaped grooves (3411) on two opposite side surfaces for clamping on both sides of the rod body, and the second clamping block (342) and the third clamping block (343) are symmetrically provided with second U-shaped grooves (3431) on two opposite side surfaces for clamping on both sides of the rod body. The opening directions of the first U-shaped groove (3411) and the second U-shaped groove (3431) are perpendicular to each other, and the first U-shaped groove (3411) and the second U-shaped groove (3431) on the second clamping block (342) are respectively provided on two sides facing each other.

3. A paper-based coding device according to claim 2, characterized in that: The first clamping block (341) is integrally connected with a first connecting protrusion (3412) on both sides, and the second clamping block (342) is integrally connected with a second connecting protrusion (3421) at a position close to the first connecting protrusion (3412) on a side close to the first clamping block (341), and the locking pin (344) passes through the first connecting protrusion (3412) and is provided in the second connecting protrusion (3421), and the locking pin (344) is threadedly connected to the second connecting protrusion (3421); The second clamping block (342) is integrally connected with a third connecting protrusion (3422) on the side adjacent to the second connecting protrusion (3421) on one side close to the third clamping block (343), and the two sides of the third clamping block (343) are integrally connected with a fourth connecting protrusion (3432) at adjacent positions of the third connecting protrusion (3422). The adjusting pin (345) passes through the fourth connecting protrusion (3432) and is provided in the third connecting protrusion (3422). The adjusting pin (345) is slidingly connected to the fourth connecting protrusion (3432), and the adjusting pin (345) is threadedly connected to the third connecting protrusion (3422). The end of the adjusting pin (345) protrudes from the fourth connecting protrusion (3432) and is fixedly connected to the adjusting handle (346).

4. The paper-based inkjet printer according to claim 3, characterized in that: The regulating pin (345) protrudes from the outer wall of the fourth connecting protrusion (3432) and is sleeved and fixedly connected to a limiting protrusion ring (3451) for abutting against the fourth connecting protrusion (3432).

5. The paper-based inkjet printer according to claim 1, characterized in that: The printing table (1) is provided with side plates (11) on both sides, and the conveying mechanism (4) includes an active roller (41) rotatably connected between the two side plates (11), a driven roller (42), and a plurality of conveying belts (43) stretched between the active roller (41) and the driven roller (42) and used for conveying paper parts, wherein each of the conveying belts (43) is arranged on the active roller (41) and the driven roller (42) at intervals.

6. The paper-based coding device according to claim 5, characterized in that: A mounting cross bar (44) is provided above the printing table (1) on a side close to the driven roller (42), and the mounting cross bar (44) is fixedly connected between the two side plates (11). A plurality of pressing plates (441) for pressing paper pieces are arranged at intervals on the mounting cross bar (44), one end of the pressing plate (441) is fixedly connected to the mounting cross bar (44), and the end of the pressing plate (441) away from the mounting cross bar (44) is inclined toward the printing table (1) to press the paper pieces on the conveyor belt (43).

7. The paper-based inkjet printer according to claim 6, characterized in that: The printing table (1) is provided with a receiving box (7) for holding paper pieces after coding on a side close to the active roller (41), and a position-limiting support mechanism (5) for supporting paper pieces to be coded on a side away from the receiving box (7). The printing table (1) is also provided with a transfer mechanism (6) between the mounting cross bar (44) and the position-limiting support mechanism (5) for transferring the paper pieces to be coded at the position of the position-limiting support mechanism (5) to the conveyor belt (43); Mounting shells (12) are provided on both sides of the printing table (1), and the transfer mechanism (6) is provided between the two mounting shells (12). The transfer mechanism (6) comprises a picking assembly (61) for picking up the first layer of paper pieces, a pressure wheel assembly (62) for pressing and transferring the paper pieces, and a swing auxiliary assembly (63) for driving the picking assembly (61) to swing toward one side of the pressure wheel assembly (62).

8. The paper-based inkjet printer according to claim 7, characterized in that: The picking assembly (61) comprises a ventilation main pipe (611) and a plurality of negative pressure adsorption heads (612) spaced apart and connected to the ventilation main pipe (611), wherein the negative pressure adsorption heads (612) face the position limiting support mechanism (5) to adsorb the first layer of paper pieces; The two mounting shells (12) are provided with a supporting cross bar (613) on the side of the ventilation main pipe (611) away from the pressure wheel assembly (62), and the two ends of the supporting cross bar (613) are rotatably connected to the two mounting shells (12). A plurality of connecting parts (6131) for fixed connection with the ventilation main pipe (611) are arranged at intervals on the supporting cross bar (613), and the swing auxiliary assembly (63) is arranged in the mounting shell (12) and abuts against the ventilation main pipe (611).

9. The paper-based inkjet printer according to claim 8, characterized in that: The pressure wheel assembly (62) includes a pressure wheel mounting rod (621) fixedly connected between the two mounting shells (12) and located between the ventilation main pipe (611) and the mounting cross bar (44), and a plurality of pressure wheels (622) arranged at intervals and rotatably connected to the pressure wheel mounting rod (621). Above the printing table (1), there are a plurality of adjacently arranged pad rollers (623) rotatably connected between the two mounting shells (12) and used to cooperate with the pressure wheel assembly (62). The pad roller (623) is located below the pressure wheel (622) and has a gap between it and the pressure wheel (622) for paper to pass through.

10. The paper-based inkjet printer according to claim 7, characterized in that: The position-limiting support mechanism (5) comprises a fixed frame (51) fixedly connected between the two mounting shells (12), a position-limiting side plate (52) slidably mounted on the fixed frame (51) and used for abutting against both sides of the paper piece, a position-limiting stopper (53) slidably mounted on the fixed frame (51) and used for abutting against the side of the paper piece away from the picking assembly (61), and a pressure piece (54) slidably mounted on the fixed frame (51) and used for pressing against the upper side of the paper piece. The position-limiting side plate (52), the position-limiting stopper (53) and the pressure piece (54) are all provided with a locking piece (55) for locking on the fixed frame (51).