A cartonboard flexographic printing device

Abstract

The utility model discloses a kind of cardboard flexographic printing device, including printing support, anilox roll mechanism, printing plate roll mechanism and printing water-cooled roller mechanism, anilox roll mechanism, printing plate roll mechanism and printing water-cooled roller mechanism are installed on printing support, anilox roll mechanism includes anilox roll drive assembly, anilox roll transmission assembly and anilox roll, anilox roll drive assembly is connected with anilox roll by anilox roll transmission assembly, printing plate roll mechanism includes printing plate roll and printing plate roll transmission assembly, printing plate roll transmission assembly is connected with printing plate roll, printing plate roll transmission assembly is connected with anilox roll transmission assembly, anilox roll drive assembly drives anilox roll rotation, printing plate roll is driven synchronous rotation by anilox roll transmission assembly.The utility model passes through the optimization transmission structure design, realized the accurate synchronous transmission of printing plate roll and anilox roll, can adapt to different models of printing material, guarantee the transmission accuracy of printing plate roll and printing water-cooled roller, effectively promote printing precision and stability.

Description

Technical Field

[0001] This utility model relates to the field of printing technology, specifically to a flexographic printing device for cardboard. Background Technology

[0002] Flexographic printing is a direct printing method, named for its use of a flexible, raised printing plate. During printing, the flexographic plate is attached to a printing roller on a flexographic printing press. The flexographic plate is supplied with ink by an engraved metal awl. As the material passes between the printing roller and the substrate roller, the pressure of the printing roller transfers the ink layer from the image area of ​​the flexographic plate to the surface of the material, forming a clear image.

[0003] However, existing flexographic printing presses are all driven by a single motor, which is directly connected to the printing roller and transmits power to the printing roller and anilox roller through multi-stage gears. This approach leads to the following problems: During the printing process, the thickness of the printing material varies, and the distance between the printing roller and the water-cooled printing roller is also different. In traditional printing rollers, the power gear is located on the water-cooled printing roller. The gear meshing clearance changes with the thickness of the printing material, affecting the printing registration accuracy and causing deviations or ghosting in the printed pattern, thus impacting product quality. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a flexographic printing device for cardboard.

[0005] The technical solution of this utility model is as follows: A flexographic printing apparatus for cardboard includes a printing stand, an ink cartridge mechanism, an anilox roller mechanism, a printing plate roller mechanism, and a substrate water-cooled roller mechanism. The ink cartridge mechanism, the anilox roller mechanism, the printing plate roller mechanism, and the substrate water-cooled roller mechanism are mounted on the printing stand. The anilox roller mechanism is disposed in close contact with the ink cartridge mechanism. The printing plate roller mechanism is connected to the anilox roller mechanism. The anilox roller mechanism includes an anilox roller drive assembly, an anilox roller transmission assembly, and an anilox roller. The anilox roller transmission assembly is mounted on the printing stand and connected to the anilox roller via the anilox roller transmission assembly. The printing plate roller mechanism includes a printing plate roller and a printing plate roller transmission assembly. The printing plate roller transmission assembly is mounted on the printing stand and connected to the printing plate roller. The printing plate roller transmission assembly is connected to the anilox roller transmission assembly. The substrate water-cooled roller mechanism is disposed opposite to the printing plate roller. The anilox roller drive assembly drives the anilox roller to rotate, and the anilox roller transmission assembly drives the printing plate roller to rotate synchronously.

[0006] As a preferred technical solution, the anilox roller drive assembly includes an anilox roller drive shaft, an anilox roller drive base, and an anilox roller drive gear. The anilox roller drive base is mounted on the printing bracket, the anilox roller drive shaft is rotatably mounted on the anilox roller drive base, and the anilox roller drive gear is fixed to one end of the anilox roller drive shaft.

[0007] As a preferred technical solution, the printing plate roller drive assembly includes a printing plate roller drive shaft and a printing plate roller drive gear. The printing plate roller is fixed on the printing plate roller drive shaft, the printing plate roller drive shaft is rotatably mounted on the printing bracket, and the printing plate roller drive gear is fixed at one end of the printing plate roller drive shaft and meshes with the anilox roller drive gear.

[0008] As a preferred technical solution, the anilox roller drive assembly includes a motor, a reducer, and a coupling. The motor is connected to the reducer, and the reducer is connected to the anilox roller drive shaft via the coupling.

[0009] As a preferred technical solution, the printing water-cooled roller mechanism includes a printing water-cooled roller and a printing water-cooled roller drive assembly. The printing water-cooled roller is rotatably mounted on the printing bracket, and the printing water-cooled roller drive assembly drives the printing water-cooled roller to rotate.

[0010] As a preferred technical solution, the ink cartridge mechanism includes an ink cartridge and an ink baffle plate, with the ink cartridge disposed close to the anilox roller and the ink baffle plate installed on one side of the ink cartridge.

[0011] As a preferred technical solution, it further includes a cold foil stamping roller mechanism, which is mounted on the printing bracket and located on one side of the printing water-cooled roller mechanism.

[0012] As a preferred technical solution, the cold foil stamping roller mechanism includes a cold foil stamping roller, a pressure adjusting component, and a cold foil stamping bracket. The cold foil stamping bracket is fixed on the printing bracket, and the cold foil stamping roller is mounted on the cold foil stamping bracket through the pressure adjusting component.

[0013] As a preferred technical solution, it further includes a UV curing lamp, which is mounted on the printing bracket.

[0014] Compared with existing technologies, the beneficial effects of this utility model are as follows: By optimizing the transmission structure design, this utility model achieves precise synchronous transmission between the printing plate roller and the anilox roller, which can adapt to different types of substrate materials, ensure the transmission accuracy between the printing plate roller and the substrate water-cooled roller, and effectively improve printing accuracy and stability. At the same time, the setting of the substrate water-cooled roller mechanism significantly improves the problem of thermal deformation of the substrate material during high-speed operation, ensuring the consistency of printing quality. The cold foil stamping roller mechanism, together with the pressure adjustment component, can realize dynamic pressure control, ensuring the uniformity and stability of the cold foil stamping effect, adapting to the processing needs of materials of different thicknesses. The integration of UV curing lamps further improves ink drying efficiency and shortens the production cycle. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of the flexographic printing apparatus for cardboard involved in this utility model; Figure 2 This is a schematic diagram showing the cooperation between the anilox roller mechanism and the printing plate roller mechanism involved in this utility model. Detailed Implementation

[0017] To facilitate understanding of the present invention, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only. In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or implying the number of indicated technical features. Thus, unless otherwise stated, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "multiple" means two or more. The term "comprising" and any variations thereof mean non-exclusive inclusion, where one or more other features, integers, steps, operations, units, components, and / or combinations thereof may be present or added.

[0018] Furthermore, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; as a mechanical connection or an electrical connection; as a direct connection or an indirect connection through an intermediate medium, or as a connection within two components. All technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0019] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0020] Please combine Figure 1 As shown, this utility model provides a flexographic printing apparatus for cardboard, including a printing stand 1, an ink cartridge mechanism 2, an anilox roller mechanism 3, a printing plate roller mechanism 4, a substrate water-cooled roller mechanism 5, a cold foil stamping roller mechanism 6, and a UV curing lamp 7. The ink cartridge mechanism 2, anilox roller mechanism 3, printing plate roller mechanism 4, substrate water-cooled roller mechanism 5, cold foil stamping roller mechanism 6, and UV curing lamp 7 are mounted on the printing stand 1. The anilox roller mechanism 3 is closely attached to the ink cartridge mechanism 2, and the ink cartridge mechanism 2 is used to apply ink to the anilox roller mechanism 3. The printing plate roller mechanism 4 is connected to the anilox roller mechanism 3, and the anilox roller mechanism 3 uniformly coats the ink onto the printing plate roller mechanism 4. The water-cooled roller mechanism 5 is located close to the printing plate roller mechanism 4 and is used to support the material, allowing the printing plate roller mechanism 4 to print smoothly on the water-cooled roller mechanism 5 and stabilize the temperature of the substrate material. This ensures the flatness of the material during the printing process and prevents deformation or paper jams caused by high temperatures. The cold foil stamping roller mechanism 6 is located on one side of the water-cooled roller mechanism 5 and works with the printing plate roller mechanism 4 to achieve the cold foil stamping function, improving the texture and adhesion of the printed pattern. The UV curing lamp 7 is located on one side of the cold foil stamping roller mechanism 6 and is used to instantly cure the printed and cold foil stamped graphics with ultraviolet light, enhancing ink adhesion and accelerating the drying speed.

[0021] The ink cartridge mechanism 2 includes an ink cartridge 22 and an ink baffle 21. The ink cartridge 22 is located close to the anilox roller mechanism 3. The ink cartridge 22 is used to uniformly supply ink to the anilox roller mechanism 3. The ink baffle 21 is installed on one side of the ink cartridge 22 to control the flow of ink in the ink cartridge 22, prevent ink from overflowing or dripping, and ensure a stable and uniform ink supply process.

[0022] Please combine Figure 1 and Figure 2As shown, the anilox roller mechanism 3 includes an anilox roller drive assembly 31, an anilox roller transmission assembly 32, and an anilox roller 33. The anilox roller transmission assembly 32 is mounted on the printing stand 1. The anilox roller drive assembly 31 is connected to the anilox roller 33 through the anilox roller transmission assembly 32, thereby driving the anilox roller 33 to rotate. The surface of the anilox roller 33 has a fine cell structure, which can accurately measure and evenly transfer ink, ensuring full and consistent printing colors. The anilox roller drive assembly 31 includes a motor 311, a reducer 312, and a coupling 313. The motor 311 is connected to the reducer 312, and the reducer 312 is connected to the anilox roller transmission assembly 32 through the coupling 313. The motor 311 drives the anilox roller 33. The reducer 312 and coupling 313 drive the anilox roller transmission assembly 32, thereby driving the anilox roller 33 to rotate. The anilox roller transmission assembly 32 includes an anilox roller transmission shaft 322, an anilox roller transmission base 321, and an anilox roller transmission gear 323. The anilox roller transmission base 321 is mounted on the printing bracket 1. The anilox roller transmission shaft 322 is rotatably mounted on the anilox roller transmission base 321. The anilox roller transmission gear 323 is fixed to one end of the anilox roller transmission shaft 322. The anilox roller transmission shaft 322 is connected to the anilox roller 33. The motor 311 drives the anilox roller transmission shaft 322 to rotate, thereby driving the anilox roller 33 to rotate, thus achieving stable ink transfer and uniform coating.

[0023] The printing plate roller mechanism 4 includes a printing plate roller 42 and a printing plate roller transmission assembly 41. The printing plate roller transmission assembly 41 is mounted on the printing support 1 and is fixed to the printing plate roller 42. The printing plate roller transmission assembly 41 is connected to the anilox roller transmission assembly 32, so that when the motor 311 drives the anilox roller transmission assembly 32, it drives the printing plate roller transmission assembly 41 to rotate, thereby driving the printing plate roller 42 to rotate, realizing the synchronous operation of the printing plate roller 42 and the anilox roller 33, so that the ink can be evenly coated on the printing plate roller 42. The printing plate roller drive assembly 41 includes a printing plate roller drive shaft 411 and a printing plate roller drive gear 412. The printing plate roller 42 is fixed on the printing plate roller drive shaft 411, which is rotatably mounted on the printing support 1. The printing plate roller drive gear 412 is fixed at one end of the printing plate roller drive shaft 411 and meshes with the anilox roller drive gear 323, thereby enabling the anilox roller drive shaft 322 to rotate. Through the meshing of the printing plate roller drive gear 412 with the printing plate roller drive gear 412, the printing plate roller 42 and the anilox roller 33 are driven to rotate synchronously.

[0024] The printing water-cooled roller mechanism 5 includes a printing water-cooled roller 52 and a printing water-cooled roller drive assembly 51. The printing water-cooled roller 52 is rotatably mounted on the printing bracket 1. The printing water-cooled roller drive assembly 51 drives the printing water-cooled roller 52 to rotate. In this embodiment, the structure of the printing water-cooled roller drive assembly 51 is the same as that of the anilox roller drive assembly 31, and will not be described again in this application.

[0025] The cold foil stamping roller mechanism 6 includes a cold foil stamping roller 62, a pressure adjusting component 63, and a cold foil stamping bracket 61. The cold foil stamping bracket 61 is fixed on the printing bracket 1. The cold foil stamping roller 62 is installed on the cold foil stamping bracket 61 through the pressure adjusting component 63. The pressure adjusting component 63 generates pressure when the spring is compressed to keep the cold foil stamping roller 62 under pressure on the printing water-cooled roller 52, thus ensuring the effect of cold foil stamping.

[0026] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Under the concept of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the present invention as described above. For the sake of brevity, they are not provided in detail. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A flexographic printing apparatus for cardboard, characterized in that, The system includes a printing support, an ink cartridge mechanism, an anilox roller mechanism, a printing plate roller mechanism, and a substrate water-cooled roller mechanism. The ink cartridge mechanism, the anilox roller mechanism, the printing plate roller mechanism, and the substrate water-cooled roller mechanism are mounted on the printing support. The anilox roller mechanism is closely attached to the ink cartridge mechanism, and the printing plate roller mechanism is connected to the anilox roller mechanism. The anilox roller mechanism includes an anilox roller drive assembly, an anilox roller transmission assembly, and an anilox roller. The anilox roller transmission assembly is mounted on the printing support and connected to the anilox roller via the anilox roller transmission assembly. The printing plate roller mechanism includes a printing plate roller and a printing plate roller transmission assembly. The printing plate roller transmission assembly is mounted on the printing support and connected to the printing plate roller. The printing plate roller transmission assembly is connected to the anilox roller transmission assembly. The substrate water-cooled roller mechanism is positioned opposite to the printing plate roller. The anilox roller drive assembly drives the anilox roller to rotate, and the anilox roller transmission assembly drives the printing plate roller to rotate synchronously.

2. The flexographic printing apparatus for cardboard according to claim 1, characterized in that, The anilox roller drive assembly includes an anilox roller drive shaft, an anilox roller drive base, and an anilox roller drive gear. The anilox roller drive base is mounted on the printing bracket, the anilox roller drive shaft is rotatably mounted on the anilox roller drive base, and the anilox roller drive gear is fixed to one end of the anilox roller drive shaft.

3. The flexographic printing apparatus for cardboard according to claim 2, characterized in that, The printing plate roller drive assembly includes a printing plate roller drive shaft and a printing plate roller drive gear. The printing plate roller is fixed on the printing plate roller drive shaft, the printing plate roller drive shaft is rotatably mounted on the printing bracket, and the printing plate roller drive gear is fixed at one end of the printing plate roller drive shaft and meshes with the anilox roller drive gear.

4. The flexographic printing apparatus for cardboard according to claim 2, characterized in that, The anilox roller drive assembly includes a motor, a reducer, and a coupling. The motor is connected to the reducer, and the reducer is connected to the anilox roller drive shaft via the coupling.

5. The flexographic printing apparatus for cardboard according to claim 4, characterized in that, The printing water-cooled roller mechanism includes a printing water-cooled roller and a printing water-cooled roller drive assembly. The printing water-cooled roller is rotatably mounted on the printing bracket, and the printing water-cooled roller drive assembly drives the printing water-cooled roller to rotate.

6. The flexographic printing apparatus for cardboard according to claim 1, characterized in that, The ink cartridge mechanism includes an ink cartridge and an ink baffle plate. The ink cartridge is disposed near the anilox roller, and the ink baffle plate is installed on one side of the ink cartridge.

7. The flexographic printing apparatus for cardboard according to claim 1, characterized in that, It further includes a cold foil roller mechanism, which is mounted on the printing support and located on one side of the printing water-cooled roller mechanism.

8. The flexographic printing apparatus for cardboard according to claim 7, characterized in that, The cold foil press roller mechanism includes a cold foil press roller, a pressure adjustment component, and a cold foil support. The cold foil support is fixed on the printing support, and the cold foil press roller is mounted on the cold foil support via the pressure adjustment component.

9. The flexographic printing apparatus for cardboard according to claim 1, characterized in that, It further includes a UV curing lamp, which is mounted on the printing bracket.

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