A carton surface printing device applied to carton processing
By designing a cardboard box surface printing device that includes surface cleaning, plate movement, and a scraping mechanism, the printing problem caused by dust on the cardboard box surface was solved, achieving efficient and clear printing results and ensuring brand image and information delivery.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANCHUAN HEXING COLOR PACKAGING CO LTD
- Filing Date
- 2025-09-02
- Publication Date
- 2026-07-24
Smart Images
Figure CN224545532U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of surface printing technology, and in particular to a cardboard box surface printing device applied to cardboard box processing. Background Technology
[0002] The carton surface printing device is a specialized piece of equipment for corrugated and folding cartons. Its core function is to print text, patterns, brand logos, and barcode information on the surface of the carton, thereby realizing product packaging identification, brand image display, and key information transmission. It is widely used in food, e-commerce logistics, and industrial manufacturing. The number of printing colors and process parameters can be flexibly adjusted according to the carton material, size, and printing accuracy requirements.
[0003] The carton surface printing device is highly adaptable, compatible with corrugated paper and cardboard, and can be flexibly adjusted according to the carton size to meet diverse packaging needs. It has high printing efficiency, can be linked with subsequent processing steps, and has stable printing results. By precisely controlling the amount of ink and pressure, it can clearly present text and patterns with good color reproduction, helping to clearly convey brand identity. In addition, it is relatively easy to operate and can flexibly adjust the number of printing colors.
[0004] When dust adheres to the surface of a cardboard box, it can cause ink to not adhere evenly, resulting in problems such as missed prints, spots, and uneven ink color. This reduces the clarity of text or patterns, affecting brand image and information delivery. At the same time, dust may also mix into the ink in the printing unit or adhere to the printing plate roller, which will not only wear down the printing plate and shorten its service life, but also cause continuous quality problems in subsequent printed products, increasing the scrap rate. Uncleaned dust may fall off after drying, contaminating other parts of the production line. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a cardboard box surface printing device for cardboard box processing, which aims to improve the problems in the prior art where dust adheres to the cardboard box surface, causing ink to not adhere evenly, resulting in missing prints, spots, uneven ink color, reduced clarity of text or patterns, and affecting brand image and information transmission.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a cardboard box surface printing device for cardboard box processing, comprising a base and a top plate, wherein a surface cleaning mechanism is provided on the top of the base for cleaning dust from the surface of the cardboard box, a printing plate moving mechanism is provided at the bottom of the top plate for moving the printing device to a corresponding position, and an ink scraping mechanism is provided on the front side of the top plate.
[0007] The surface cleaning mechanism includes a printing plate, the bottom of which is fixedly connected to the top of a base. Guide columns are fixedly connected to the front and rear sides of the base. A movable block is slidably connected to the top of the guide columns. A cleaning brush is fixedly connected to the bottom of the movable block. Two detachable sliding components are provided at the bottom of the movable block.
[0008] As a further description of the above technical solution:
[0009] The printing plate moving mechanism includes multiple movable columns, the tops of which are fixedly connected to the bottom perimeter of the top plate. The bottoms of the multiple movable columns are all connected to the same movable platform. The top perimeter of the movable platform is fixedly connected to multiple sliding slots. The outer walls of the multiple movable columns are slidably connected to the inner walls of the multiple sliding slots. The top of the sliding slots is fixedly connected to an internally threaded push block. The top of the top plate is provided with a downward pressure screw assembly.
[0010] As a further description of the above technical solution:
[0011] The detachable sliding assembly includes a slide rail holder, the top of which is fixedly connected to the front and rear sides of the bottom of the movable block. The tops of the two guide posts are each provided with a concave groove, and the bottoms of the two slide rail holders are respectively slidably connected to the inside of the two concave grooves.
[0012] As a further description of the above technical solution:
[0013] The downward pressure screw assembly includes a coupling, the bottom of which is fixedly connected to the top of the top plate, a motor is fixedly connected to the top of the coupling, and a threaded rod is fixedly connected to the bottom of the coupling. The outer wall of the threaded rod is threadedly connected to the inner wall of the internal thread push block.
[0014] As a further description of the above technical solution:
[0015] The squeegee mechanism includes a screen printing plate, the top rear side of which is fixedly connected to the top front side of a movable platform. A fixed plate is provided on the top of the movable platform, a movable handle is fixedly connected to the top of the fixed plate, a buffer mounting bracket is fixedly connected to the bottom front side of the fixed plate, a squeegee push assembly is provided on the top front side of the movable platform, a spring-loaded cylinder assembly is provided on the bottom rear side of the fixed plate, and a movable squeegee assembly is provided at the bottom of the buffer mounting bracket.
[0016] As a further description of the above technical solution:
[0017] The scraper push assembly includes two limiting plates. The bottom of both limiting plates is fixedly connected to the bottom front side of the movable platform. Sliding columns are slidably connected inside both limiting plates. The front side of both sliding columns is fixedly connected to the same push plate.
[0018] As a further description of the above technical solution:
[0019] The rebound cylinder assembly includes a piston rod, the top of which is fixedly connected to the bottom rear side of the fixed plate, and a cylinder body is fixedly connected to the front side of the push plate. The piston rod is slidably connected inside the cylinder body.
[0020] As a further description of the above technical solution:
[0021] The movable doctor blade assembly includes two movable rods, the tops of which are rotatably connected to the bottom of the buffer mounting bracket, and the bottoms of which are fixedly connected to the same doctor blade.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the cardboard box is supported by the printing platform at the top of the base, and the guide columns on the front and rear sides of the base provide a sliding track for the movable block. The cleaning brush at the bottom of the movable block moves along the guide columns with the movable block. At the same time, the detachable sliding component assists the movable block to slide smoothly. Before the cardboard box is transported to the printing stage, the cleaning brush wipes and cleans the surface of the cardboard box, which can effectively remove dust from the surface of the cardboard box, avoid printing omissions and uneven ink color caused by dust, and ensure that the printed patterns and text are clear.
[0024] 2. In this utility model, the movable columns around the bottom of the top plate provide support for the movable table. The sliding grooves around the top of the movable table slide and adapt to the outer wall of the movable columns. After the downward screw assembly at the top of the top plate is activated, it will push the internal thread push block to move. The internal thread push block drives the sliding grooves and the movable table to slide up and down or horizontally along the movable columns, thereby adjusting the position of the printing plate carried by the movable table. The height of the printing plate can be flexibly adjusted to accurately connect to cartons of different sizes and thicknesses. Attached Figure Description
[0025] Figure 1 This is a perspective view of a cardboard box surface printing device for cardboard box processing proposed in this utility model;
[0026] Figure 2 This is a front view of a cardboard box surface printing device applied to cardboard box processing according to the present invention;
[0027] Figure 3 This is an exploded view of the surface cleaning mechanism in a cardboard box surface printing device applied to cardboard box processing, as proposed in this utility model.
[0028] Figure 4 This utility model provides an exploded view of the printing plate moving mechanism in a cardboard box surface printing device applied to cardboard box processing.
[0029] Figure 5 This is an exploded view of the ink scraping mechanism in a cardboard surface printing device for cardboard box processing proposed in this utility model.
[0030] Legend:
[0031] 1. Base; 2. Top plate; 3. Surface cleaning mechanism; 31. Printing table; 32. Guide column; 33. Movable block; 34. Cleaning brush; 35. Detachable sliding assembly; 351. Slide rail holder; 352. Concave groove; 4. Printing plate moving mechanism; 41. Movable column; 42. Movable table; 43. Sliding groove; 44. Internal threaded push block; 45. Downward screw assembly; 451. Coupling; 452. Motor; 453. Threaded rod; 5. Doctor blade mechanism; 51. Screen printing plate; 52. Fixing plate; 53. Movable handle; 54. Buffer mounting bracket; 55. Doctor blade forward push assembly; 551. Limiting plate; 552. Sliding column; 553. Forward push plate; 56. Rebound cylinder assembly; 561. Cylinder body; 562. Piston rod; 57. Movable doctor blade assembly; 571. Movable rod; 572. Doctor blade. Detailed Implementation
[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0033] Reference Figure 1 , Figure 2 and Figure 3 An embodiment of this utility model is provided: a cardboard box surface printing device for cardboard box processing, including a base 1 and a top plate 2. A surface cleaning mechanism 3 is provided on the top of the base 1 for cleaning dust from the surface of the cardboard box. A printing plate moving mechanism 4 is provided at the bottom of the top plate 2 for moving the printing device to the corresponding position. An ink scraping mechanism 5 is provided on the front side of the top plate 2.
[0034] The surface cleaning mechanism 3 includes a printing plate 31, the bottom of which is fixedly connected to the top of the base 1. Guide columns 32 are fixedly connected to the front and rear sides of the base 1. A movable block 33 is slidably connected to the top of the guide column 32. A cleaning brush 34 is fixedly connected to the bottom of the movable block 33. Two detachable sliding components 35 are provided at the bottom of the movable block 33.
[0035] Specifically, before printing on the cartons, the surface of the cartons must first be cleaned of dust by the surface cleaning mechanism 3 to ensure the quality of subsequent printing. The cartons to be printed are placed on the printing table 31, the bottom of which is fixedly connected to the top of the base 1, providing stable support for the cartons. Then, using the guide columns 32 fixedly connected to the front and rear sides of the base 1, the movable block 33 slides on the top of the guide columns 32. A cleaning brush 34 is fixedly connected to the bottom of the movable block 33. As the movable block 33 slides along the guide column 32, the cleaning brush 34 moves synchronously and contacts the surface of the cartons. Through the movement of the cleaning brush 34 and the friction with the surface of the cartons, the dust on the surface of the cartons is cleaned. At the same time, two detachable sliding components 35 are provided at the bottom of the movable block 33. The detachable sliding components 35 and the guide column 32 reduce the frictional resistance of the movable block 33 during the sliding process. Through the action of the movable block 33, the cleaning brush 34 and the detachable sliding components 35, efficient and stable dust cleaning of the surface of the cartons is achieved.
[0036] After cleaning the surface of the carton, the position of the printing device is adjusted by the printing plate moving mechanism 4, which is located at the bottom of the top plate 2. According to the size of the carton to be printed and the printing position requirements, the printing plate moving mechanism 4 drives the printing device to move precisely to the corresponding printing position. Through the operation of the printing plate moving mechanism 4, the printing device is precisely aligned with the printing position of the carton. When the printing device reaches the designated printing position, the squeegee mechanism 5 set on the front side of the top plate 2 starts to operate and completes the printing operation on the surface of the carton.
[0037] Reference Figure 1 , Figure 2 and Figure 4 The printing plate moving mechanism 4 includes multiple moving columns 41. The tops of the multiple moving columns 41 are fixedly connected to the bottom periphery of the top plate 2. The bottoms of the multiple moving columns 41 are all connected to the same moving platform 42. The top periphery of the moving platform 42 is fixedly connected to multiple sliding slots 43. The outer walls of the multiple moving columns 41 are slidably connected to the inner walls of the multiple sliding slots 43. The top of the sliding slots 43 is fixedly connected to an internal threaded push block 44. The top of the top plate 2 is provided with a downward pressure screw assembly 45.
[0038] Specifically, after the carton is cleaned, the printing device is moved to the corresponding printing position by the printing plate moving mechanism 4. The tops of the multiple moving columns 41 of the printing plate moving mechanism 4 are fixedly connected to the bottom of the top plate 2, providing stable support for the entire mechanism. The bottoms of the multiple moving columns 41 all pass through the same moving platform 42. The top of the moving platform 42 is fixedly connected to multiple sliding slots 43, and the outer walls of the multiple moving columns 41 are slidably connected to the inner walls of the multiple sliding slots 43. By sliding the moving columns 41 and the sliding slots 43, the moving direction of the moving platform 42 is limited, ensuring that the moving platform 42 can only move smoothly along the axial direction of the moving columns 41.
[0039] Subsequently, the downward screw assembly 45 set on the top of the top plate 2 begins to operate. The downward screw assembly 45 and the internal threaded push block 44 fixedly connected to the top of the sliding slot 43 form a threaded connection. When the downward screw assembly 45 rotates, the internal threaded push block 44 is driven to move along the screw axis direction through the threaded transmission. Since the internal threaded push block 44 is fixed on the top of the sliding slot 43, the movement of the internal threaded push block 44 will synchronously drive the sliding slot 43 and the movable table 42 fixed thereto to move. Through the threaded transmission between the downward screw assembly 45 and the internal threaded push block 44, the rotational motion of the downward screw assembly 45 is converted into the linear motion of the movable table 42.
[0040] Reference Figure 3 , Figure 4 and Figure 5 The detachable sliding assembly 35 includes a slide rail bracket 351, the top of which is fixedly connected to the bottom front and rear sides of the movable block 33. The tops of the two guide posts 32 are each provided with a concave groove 352, and the bottoms of the two slide rail brackets 351 are slidably connected to the interiors of the two concave grooves 352. The downward pressure screw assembly 45 includes a coupling 451, the bottom of which is fixedly connected to the top of the top plate 2. A motor 452 is fixedly connected to the top of the coupling 451, and a threaded rod 453 is fixedly connected to the bottom of the coupling 451. The outer wall of the threaded rod 453... The ink scraping mechanism 5 is threadedly connected to the inner wall of the internal thread push block 44. The screen printing plate 51 is fixedly connected to the top rear side of the screen printing plate 51 and to the top front side of the movable table 42. A fixed plate 52 is provided on the top of the movable table 42. A movable handle 53 is fixedly connected to the top of the fixed plate 52. A buffer mounting bracket 54 is fixedly connected to the bottom front side of the fixed plate 52. A scraper push assembly 55 is provided on the top front side of the movable table 42. A spring cylinder assembly 56 is provided on the bottom rear side of the fixed plate 52. A movable scraper assembly 57 is provided on the bottom of the buffer mounting bracket 54.
[0041] Specifically, during the operation of the surface cleaning mechanism 3, the detachable sliding component 35 assists the movable block 33 in sliding stably. The top of the slide rail bracket 351 of the detachable sliding component 35 is fixedly connected to the bottom front and rear sides of the movable block 33. The top of each of the two guide posts 32 is provided with a concave groove 352, and the bottom of the two slide rail brackets 351 is slidably connected to the inside of the two concave grooves 352 respectively. When the movable block 33 slides along the guide post 32, the slide rail bracket 351 slides synchronously with the movable block 33 in the concave groove 352. Through the sliding of the slide rail bracket 351 and the concave groove 352, the friction between the movable block 33 and the guide post 32 is reduced, so as to achieve the effect of the movable block 33 driving the cleaning brush 34 to move smoothly.
[0042] When the printing plate moving mechanism 4 is adjusted, the downward screw assembly 45 provides power transmission. The bottom of the coupling 451 of the downward screw assembly 45 is fixedly connected to the top of the top plate 2. The top of the coupling 451 is fixedly connected to the motor 452, and the bottom of the coupling 451 is fixedly connected to the threaded rod 453. The outer wall of the threaded rod 453 is threadedly connected to the inner wall of the inner threaded push block 44. When the motor 452 is started, the motor 452 drives the threaded rod 453 to rotate through the coupling 451. When the threaded rod 453 rotates, it pushes the inner threaded push block 44 to move through the threaded transmission. Through the power transmission of the motor 452, the coupling 451 and the threaded rod 453, the rotational motion of the motor 452 is converted into the linear motion of the inner threaded push block 44, thereby driving the moving table 42 and the printing device to adjust their positions.
[0043] After the printing plate position is adjusted, the squeegee mechanism 5 performs the printing operation. The top rear side of the screen printing plate 51 of the squeegee mechanism 5 is fixedly connected to the top front side of the movable table 42. A fixed plate 52 is provided on the top of the movable table 42, and a movable handle 53 is fixedly connected to the top of the fixed plate 52. A buffer mounting bracket 54 is fixedly connected to the bottom front side of the fixed plate 52. A squeegee push assembly 55 is provided on the top front side of the movable table 42, and a spring cylinder assembly 56 is provided on the bottom rear side of the fixed plate 52. A movable squeegee assembly 57 is provided at the bottom of the buffer mounting bracket 54. The squeegee push assembly 55 pushes the fixed plate 52 to move, and the fixed plate 52 drives the buffer mounting bracket 54 and the movable squeegee assembly 57 to move towards the screen printing plate 51. The movable squeegee assembly 57 contacts the screen printing plate 51 and completes the squeegee printing. After printing, the spring cylinder assembly 56 pulls the fixed plate 52 to reset. Through the action of the squeegee push assembly 55 and the spring cylinder assembly 56, the movable squeegee assembly 57 reciprocates to complete the printing and reset effect.
[0044] Reference Figure 2 , Figure 4 and Figure 5The doctor blade push assembly 55 includes two limiting plates 551. The bottom of both limiting plates 551 is fixedly connected to the bottom front side of the movable table 42. Sliding columns 552 are slidably connected inside both limiting plates 551. The front side of both sliding columns 552 is fixedly connected to the same push plate 553. The rebound cylinder assembly 56 includes a piston rod 562. The top of the piston rod 562 is fixedly connected to the bottom rear side of the fixed plate 52. The front side of the push plate 553 is fixedly connected to a cylinder body 561. The piston rod 562 is slidably connected inside the cylinder body 561. The movable doctor blade assembly 57 includes two movable rods 571. The top of both movable rods 571 is rotatably connected to the bottom of the buffer mounting bracket 54. The bottom of both movable rods 571 is fixedly connected to the same doctor blade 572.
[0045] Specifically, the bottom of the two limiting plates 551 of the scraper push assembly 55 is fixedly connected to the bottom front side of the movable table 42. The two limiting plates 551 are slidably connected to the sliding columns 552. The front side of the two sliding columns 552 is fixedly connected to the same push plate 553. When the push plate 553 is moved by force, it drives the two sliding columns 552 to slide synchronously inside the corresponding limiting plates 551. Through the sliding of the limiting plates 551 and the sliding columns 552, the moving direction of the push plate 553 is limited, so as to achieve the effect of the push plate 553 moving smoothly along a fixed trajectory. During the movement of the push plate 553, it pushes the fixed plate 52 to move synchronously. The fixed plate 52 drives the buffer mounting bracket 54 fixedly connected to the bottom front side to move, thereby driving the movable scraper assembly 57 to move closer to the screen printing plate 51.
[0046] When the movable doctor blade assembly 57 moves with the buffer mounting frame 54, the tops of its two movable rods 571 are rotatably connected to the bottom of the buffer mounting frame 54, and the bottoms of the two movable rods 571 are fixedly connected to the same doctor blade 572. When the doctor blade 572 contacts the screen printing plate 51, the movable rods 571 can rotate slightly around the top connection point, so that the doctor blade 572 always adheres to the surface of the screen printing plate 51. By adjusting the rotation of the movable rods 571 and the adhesion of the doctor blade 572, the doctor blade 572 can achieve the effect of uniformly scraping ink on the surface of the screen printing plate 51, thus completing the carton printing.
[0047] After printing is completed, the spring cylinder assembly 56 drives all components to reset. The cylinder body 561 of the spring cylinder assembly 56 is fixedly connected to the front side of the front push plate 553, and the top of the piston rod 562 is fixedly connected to the bottom rear side of the fixed plate 52. The piston rod 562 is slidably connected inside the cylinder body 561. A spring force is generated inside the cylinder body 561, which pulls the piston rod 562 to retract into the cylinder body 561. The piston rod 562 drives the fixed plate 52 to move in the opposite direction. The fixed plate 52 drives the buffer mounting bracket 54, the movable doctor blade assembly 57 and the front push plate 553 to reset synchronously. Through the extension and retraction of the cylinder body 561 and the piston rod 562, the fixed plate 52 and related components are accurately reset, preparing for the next printing operation.
[0048] Working Principle: Before printing on the cartons, the surface cleaning mechanism 3 first cleans the dust from the cartons to ensure the quality of subsequent printing. The cartons to be printed are placed on the printing table 31, whose bottom is fixedly connected to the top of the base 1, providing stable support for the cartons. Then, using guide columns 32 fixedly connected to both the front and rear sides of the base 1, the movable block 33 slides on top of the guide columns 32. A cleaning brush 34 is fixedly connected to the bottom of the movable block 33. As the movable block 33 slides along the guide columns 32, the cleaning brush 34 moves synchronously and contacts the surface of the cartons. Through the movement of the cleaning brush 34 and the friction with the surface of the cartons, the dust on the surface of the cartons is cleaned. At the same time, the movable block 33... The bottom of the device is provided with two detachable sliding components 35. The top of the slide rail bracket 351 of the detachable sliding component 35 is fixedly connected to the front and rear sides of the bottom of the movable block 33. The top of the two guide posts 32 is provided with concave grooves 352, and the bottom of the two slide rail brackets 351 is slidably connected to the inside of the two concave grooves 352 respectively. When the movable block 33 slides along the guide post 32, the slide rail bracket 351 slides synchronously with the movable block 33 in the concave groove 352. Through the sliding of the slide rail bracket 351 and the concave groove 352, the frictional resistance between the movable block 33 and the guide post 32 is reduced. Through the action of the movable block 33, the cleaning brush 34 and the detachable sliding components 35, efficient and stable dust cleaning of the carton surface is achieved.
[0049] After cleaning the carton surface, the printing device is positioned using the printing plate moving mechanism 4 to precisely align with the printing position on the carton. The printing plate moving mechanism 4 is located at the bottom of the top plate 2, with multiple movable columns 41 fixedly connected to the bottom perimeter of the top plate 2, providing stable support for the entire mechanism. The bottoms of the multiple movable columns 41 all penetrate the same movable platform 42. Multiple sliding slots 43 are fixedly connected to the top perimeter of the movable platform 42, and the outer walls of the multiple movable columns 41 are slidably connected to the inner walls of the multiple sliding slots 43. The sliding of the movable columns 41 and the sliding slots 43 limits the direction of movement of the movable platform 42, ensuring that the movable platform 42 can only move smoothly along the axis of the movable columns 41. Subsequently, the downward pressure screw assembly 45 located at the top of the top plate 2 begins to operate. The bottom of the coupling 451 of the downward pressure screw assembly 45 is fixedly connected to the top of the top plate 2. A motor 452 is fixedly connected to the top of the coupling 451, and a threaded rod 453 is fixedly connected to the bottom of the coupling 451. The outer wall of the threaded rod 453 is threadedly connected to the inner wall of the internal threaded push block 44 fixedly connected to the top of the sliding groove 43. When the motor 452 is started, the motor 452 drives the threaded rod 453 to rotate through the coupling 451. When the threaded rod 453 rotates, it pushes the internal threaded push block 44 to move along the direction of the screw axis through the threaded transmission. Since the internal threaded push block 44 is fixed to the top of the sliding groove 43, the movement of the internal threaded push block 44 will synchronously drive the sliding groove 43 and the movable table 42 fixed thereto to move. Through the threaded transmission between the lower screw assembly 45 and the internal threaded push block 44, the rotational motion of the motor 452 is converted into the linear motion of the movable table 42, thereby driving the printing device installed on the movable table 42 to move, so as to achieve precise alignment between the printing device and the printing position of the carton.
[0050] The screen printing plate 51 of the squeegee mechanism 5 is fixedly connected to the top rear side of the movable table 42. A fixed plate 52 is provided on the top of the movable table 42, and a movable handle 53 is fixedly connected to the top of the fixed plate 52. A buffer mounting bracket 54 is fixedly connected to the bottom front side of the fixed plate 52. A squeegee push assembly 55 is provided on the top front side of the movable table 42, and a spring-loaded cylinder assembly 56 is provided on the bottom rear side of the fixed plate 52. A movable squeegee assembly 57 is provided at the bottom of the buffer mounting bracket 54. The bottoms of the two limiting plates 551 of the squeegee push assembly 55 are both fixedly connected to the bottom front side of the movable table 42, and both limiting plates 551 have internal sliding... The device is connected to a sliding column 552. The front side of each sliding column 552 is fixedly connected to the same front push plate 553. When the front push plate 553 is moved by force, it drives the two sliding columns 552 to slide synchronously inside the corresponding limiting plate 551. Through the sliding of the limiting plate 551 and the sliding column 552, the movement direction of the front push plate 553 is limited, so as to achieve the effect of the front push plate 553 moving smoothly along a fixed trajectory. During the movement of the front push plate 553, it pushes the fixed plate 52 to move synchronously. The fixed plate 52 drives the buffer mounting bracket 54 fixedly connected to the bottom front side to move, thereby driving the movable scraper assembly 57 to move closer to the screen printing plate 51.
[0051] When the movable doctor blade assembly 57 moves with the buffer mounting frame 54, the tops of its two movable rods 571 are rotatably connected to the bottom of the buffer mounting frame 54, and the bottoms of the two movable rods 571 are fixedly connected to the same doctor blade 572. When the doctor blade 572 contacts the screen printing plate 51, the movable rods 571 can rotate slightly around the top connection point, so that the doctor blade 572 always adheres to the surface of the screen printing plate 51. By adjusting the rotation of the movable rods 571 and the adhesion of the doctor blade 572, the doctor blade 572 can achieve the effect of uniformly scraping ink on the surface of the screen printing plate 51, thus completing the carton printing.
[0052] After printing is completed, the spring cylinder assembly 56 drives all components to reset, preparing for the next printing operation. The cylinder body 561 of the spring cylinder assembly 56 is fixedly connected to the front side of the front push plate 553, and the top of the piston rod 562 is fixedly connected to the bottom rear side of the fixed plate 52. The piston rod 562 is slidably connected inside the cylinder body 561. The cylinder body 561 generates a spring force, pulling the piston rod 562 to retract into the cylinder body 561. The piston rod 562 drives the fixed plate 52 to move in the opposite direction. The fixed plate 52 drives the buffer mounting bracket 54, the movable doctor blade assembly 57 and the front push plate 553 to reset synchronously. Through the extension and retraction of the cylinder body 561 and the piston rod 562, the fixed plate 52 and related components are accurately reset. Thus, the entire carton printing device completes a complete printing operation.
[0053] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A cardboard box surface printing device for cardboard box processing, comprising a base (1) and a top plate (2), characterized in that: The top of the base (1) is provided with a surface cleaning mechanism (3), which is used to clean the dust on the surface of the carton. The bottom of the top plate (2) is provided with a printing plate moving mechanism (4), which is used to move the printing device to the corresponding position. The front side of the top plate (2) is provided with a scraping mechanism (5). The surface cleaning mechanism (3) includes a printing plate (31), the bottom of which is fixedly connected to the top of the base (1). Guide columns (32) are fixedly connected to the front and rear sides of the base (1). A movable block (33) is slidably connected to the top of the guide column (32). A cleaning brush (34) is fixedly connected to the bottom of the movable block (33). Two detachable sliding components (35) are provided at the bottom of the movable block (33).
2. The cardboard box surface printing device according to claim 1, characterized in that: The printing plate moving mechanism (4) includes multiple moving columns (41), the tops of the multiple moving columns (41) are fixedly connected to the bottom periphery of the top plate (2), the bottoms of the multiple moving columns (41) are all connected to the same moving platform (42), the top periphery of the moving platform (42) is fixedly connected to multiple sliding slots (43), the outer walls of the multiple moving columns (41) are respectively slidably connected to the inner walls of the multiple sliding slots (43), the top of the sliding slots (43) is fixedly connected to an internal thread push block (44), and the top of the top plate (2) is provided with a downward pressure screw assembly (45).
3. The cardboard box surface printing device according to claim 1, characterized in that: The detachable sliding assembly (35) includes a slide rail bracket (351), the top of which is fixedly connected to the front and rear sides of the bottom of the movable block (33). The tops of the two guide posts (32) are provided with concave grooves (352), and the bottoms of the two slide rail brackets (351) are slidably connected to the inside of the two concave grooves (352).
4. The cardboard box surface printing device according to claim 2, characterized in that: The downward screw assembly (45) includes a coupling (451), the bottom of which is fixedly connected to the top of the top plate (2), a motor (452) is fixedly connected to the top of the coupling (451), and a threaded rod (453) is fixedly connected to the bottom of the coupling (451). The outer wall of the threaded rod (453) is threadedly connected to the inner wall of the internal threaded push block (44).
5. The cardboard box surface printing device according to claim 1, characterized in that: The squeegee mechanism (5) includes a screen printing plate (51), the top rear side of which is fixedly connected to the top front side of the movable table (42). A fixed plate (52) is provided on the top of the movable table (42), a movable handle (53) is fixedly connected to the top of the fixed plate (52), a buffer mounting bracket (54) is fixedly connected to the bottom front side of the fixed plate (52), a squeegee push assembly (55) is provided on the top front side of the movable table (42), a spring cylinder assembly (56) is provided on the bottom rear side of the fixed plate (52), and a movable squeegee assembly (57) is provided at the bottom of the buffer mounting bracket (54).
6. The cardboard box surface printing device according to claim 5, characterized in that: The scraper push assembly (55) includes two limiting plates (551). The bottom of the two limiting plates (551) is fixedly connected to the bottom front side of the movable platform (42). The interior of the two limiting plates (551) is slidably connected to sliding columns (552). The front side of the two sliding columns (552) is fixedly connected to the same push plate (553).
7. A cardboard box surface printing apparatus for cardboard box processing according to claim 6, characterized in that: The rebound cylinder assembly (56) includes a piston rod (562), the top of which is fixedly connected to the bottom rear side of the fixed plate (52), and a cylinder body (561) is fixedly connected to the front side of the front push plate (553). The piston rod (562) is slidably connected inside the cylinder body (561).
8. A cardboard box surface printing device for cardboard box processing according to claim 5, characterized in that: The movable doctor blade assembly (57) includes two movable rods (571), the tops of which are rotatably connected to the bottom of the buffer mounting bracket (54), and the bottoms of which are fixedly connected to the same doctor blade (572).