Anilox roll facilitating large ink volume flow leveling

Abstract

The utility model provides a netted pattern roller beneficial to large ink flow leveling relates to printing technical field, solved the technical problem that netted pattern roller ink release, flow leveling is poor in prior art, this netted pattern roller beneficial to large ink flow leveling includes roller body and its surface coating, is provided with serpentine flow groove on the coating, the inside of serpentine flow groove is provided with arc flow guide portion, and arc flow guide portion projects from the groove bottom of serpentine flow groove setting, between adjacent arc flow guide portion, or, the inside wall between arc flow guide portion and serpentine flow groove forms drainage channel, is used for guiding and promoting the ink spreading on the printing material. The serpentine flow groove provided on the coating of netted pattern roller provides the main ink storage space, and the arc flow guide portion reduces the ink flow resistance, and the ink in the drainage channel can flow out and connect the ink of adjacent net cell, spreads rapidly on the printing material, greatly promotes flow leveling.

Description

Technical Field

[0001] This utility model relates to the field of printing technology, and in particular to an anilox roller that facilitates leveling of large ink volumes. Background Technology

[0002] Ceramic anilox rollers are key components in processes such as flexographic and gravure printing. They use evenly distributed micro-cells on their surface to quantitatively control ink transfer. In packaging and decorative printing, large ink volumes are often required to achieve rich colors, special textures, or functional coatings.

[0003] In the prior art, anilox rollers used for large ink volumes typically employ deep-cavity, large-volume anilox patterns, such as traditional pyramidal or grid-shaped patterns.

[0004] The applicant has discovered that the existing technology has at least the following technical problems: The anilox rollers in the existing technology have the following defects: poor ink release; the deep and steep cell sidewalls have a strong adsorption force on high-viscosity ink, making it difficult for the ink to be completely transferred to the printing plate or substrate, resulting in low transfer rate and plate clogging. Poor leveling; the transferred ink is distributed in independent dots, with poor adhesion on the substrate, requiring more time or external force to level, easily producing an "orange peel" effect or microscopic unevenness. Insufficient stability; the traditional hexagonal arrangement is prone to microscopic deformation of the cell walls under greater pressure, affecting the consistency of ink volume.

[0005] Therefore, there is an urgent need for a new type of anilox roller mesh that can ensure a large ink volume while also possessing excellent ink release and leveling properties. Utility Model Content

[0006] The purpose of this utility model is to provide an anilox roller that facilitates high ink flow leveling, so as to solve the technical problems of poor ink release and leveling properties of existing anilox rollers. The various technical effects of the preferred technical solutions provided by this utility model are described in detail below.

[0007] To achieve the above objectives, the present invention provides the following technical solution: The anilox roller provided by this utility model, which facilitates high ink volume leveling, includes a roller body and a coating on its surface, wherein: The coating is provided with a serpentine flow channel, and an arc-shaped flow guide is provided inside the serpentine flow channel, the arc-shaped flow guide protruding from the bottom of the serpentine flow channel; A flow channel is formed between adjacent arc-shaped flow guides, or between the arc-shaped flow guides and the inner wall of the serpentine flow channel, to guide and promote the spread of ink on the substrate.

[0008] Preferably, the serpentine flow channel includes a main flow channel and a connecting channel, wherein: All the main channels are arranged in parallel, the connecting channel is connected to the end of the main channel and connects two adjacent main channels, and the two connecting channels connected to the two ends of the same main channel extend in opposite directions.

[0009] Preferably, the serpentine flow channel is provided with mesh holes that penetrate the corresponding channel wall, and the mesh holes are evenly distributed on the side wall of the serpentine flow channel.

[0010] Preferably, the arc-shaped guide portion includes a first main arc-shaped guide portion and a second main arc-shaped guide portion, wherein: The first main arc-shaped guide section is located in the center of the fluid channel of the main flow channel, and the corresponding flow channel is formed between the first main arc-shaped guide section and the inner wall of the main flow channel; There are two second main arc-shaped guide sections located on the opposite inner sidewalls of the main flow channel, and the corresponding flow channel is formed between two adjacent second main arc-shaped guide sections.

[0011] Preferably, the first main arc-shaped guide section and the second main arc-shaped guide section are arranged alternately along the length direction of the same main channel.

[0012] Preferably, in the same main channel, the concave sides of all the first main arc-shaped guide portions and all the second main arc-shaped guide portions face the same direction.

[0013] Preferably, in two adjacent main flow channels, the first main arc-shaped guide portions located in different main flow channels face opposite directions.

[0014] Preferably, the arc-shaped flow guide includes a corner arc-shaped flow guide, which is located at opposite ends within the connecting groove, and the convex sides of both corner arc-shaped flow guides face the corner of the serpentine flow groove.

[0015] Preferably, within the same main channel, all the arc-shaped guide sections are arranged at uniform intervals along the length direction of the main channel.

[0016] Preferably, the coating is a ceramic coating.

[0017] The anilox roller provided by this invention, which facilitates high-volume ink leveling, has the following advantages compared to existing technologies: The serpentine grooves on the anilox roller's coating provide the main ink storage space, resulting in uniform stress distribution, robust mesh walls, and strong pressure resistance; the arc-shaped guide section reduces ink flow resistance. During the ink transfer stage, the ink in the guide channel can flow out and connect with the ink in adjacent cells, rapidly spreading on the substrate to form a uniform "surface" rather than isolated "points," thus greatly promoting leveling. The sidewalls of the serpentine grooves have low adhesion to the ink, and combined with the guiding effect of the arc-shaped guide section, the ink can be easily and thoroughly "evacuated," resulting in a significantly higher transfer rate than traditional deep-cell designs. The ink spreads onto the substrate in a continuous, rotating manner; this dynamic spreading method has excellent leveling effects and effectively eliminates leveling marks. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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.

[0019] Figure 1 This is a schematic diagram of the roller body structure; Figure 2 This is a schematic diagram assuming the ceramic coating is unfolded. Figure 3 This is a schematic diagram of the serpentine flow channel section.

[0020] In the figure: 1. Mounting shaft; 2. Roller body; 3. Ceramic coating; 4. Serpentine flow channel; 41. Main flow channel; 42. Connecting channel; 5. Flow channel; 61. First main arc-shaped flow guide; 62. Second main arc-shaped flow guide; 63. Corner arc-shaped flow guide; 7. Mesh. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should be understood that the terms "center," "length," "width," "height," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and "side," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] This utility model provides an anilox roller that facilitates high ink volume leveling, ensuring high ink volume while also possessing excellent ink release and leveling performance.

[0025] The following is combined Figures 1-3 The technical solution provided by this utility model will be described in more detail.

[0026] See Figures 1-3 As shown, in order to clearly demonstrate the structural details, Figure 3 The image shows a portion of the serpentine flow groove structure. The anilox roller provided by this utility model, which facilitates high ink flow leveling, includes a roller body 2 and a coating on its surface, wherein: a serpentine flow groove 4 is provided on the coating, and an arc-shaped guide portion is provided inside the serpentine flow groove 4, the arc-shaped guide portion protruding from the bottom of the serpentine flow groove 4; see also... Figure 3 A flow channel 5 is formed between adjacent arc-shaped guide sections, or between the arc-shaped guide section and the inner wall of the serpentine flow channel 4, to guide and promote the spread of ink on the substrate.

[0027] In this embodiment, the arc-shaped guide section includes a first main arc-shaped guide section 61, a second main arc-shaped guide section 62, and a corner arc-shaped guide section 63. The specific structure will be described in detail later.

[0028] The arc-shaped guide section is a raised structure located inside the serpentine flow channel 4. Its main function is to optimize the flow characteristics by guiding the ink. The arc-shaped guide section can be fabricated using a spray coating process or a hot-press forming process. As a preferred embodiment, the curved surface shape of the arc-shaped guide section can also be parabolic or other smoothly transitioned geometric shapes to reduce resistance to ink flow.

[0029] Specifically, the roller body 2 has mounting shafts 1 fixed at both ends, and the coating is a ceramic coating 3.

[0030] The serpentine flow channel 4 can be laser-engraved. The serpentine flow channel 4 provides the main ink storage space, with uniform stress distribution, strong mesh wall, and strong pressure resistance.

[0031] See Figure 3 As shown, the flow channel 5 formed between adjacent arc-shaped guide sections, or between the arc-shaped guide section and the inner wall of the serpentine flow groove 4, serves as a narrow channel for ink flow, concentrating and guiding the ink to diffuse onto the substrate surface. The flow channel 5 directly drives the ink to spread rapidly, eliminating dot-like distribution defects.

[0032] The arc-shaped guide section reduces ink flow resistance. During the ink transfer stage, the ink in the guide channel 5 can flow out and connect with the ink in adjacent cells, spreading rapidly on the substrate to form a uniform "surface" rather than isolated "points," thus greatly promoting leveling. The sidewalls of the serpentine flow channel 4 have low adhesion to the ink, and combined with the guiding effect of the arc-shaped guide section, the ink can be easily and thoroughly "evacuated," resulting in a transfer rate significantly higher than that of traditional deep cells. The ink spreads onto the substrate in a continuous, rotating manner; this dynamic spreading method has excellent leveling effects and effectively eliminates leveling marks.

[0033] For the specific structure of the serpentine flow channel 4, please refer to [link / reference]. Figure 2 and Figure 3 As shown, the serpentine flow channel 4 includes a main flow channel 41 and a connecting channel 42, wherein: all the main flow channels 41 are arranged in parallel, the connecting channel 42 is connected to the end of the main flow channel 41 and connects two adjacent main flow channels 41, and the two connecting channels 42 connected to the two ends of the same main flow channel 41 extend in opposite directions.

[0034] See Figure 2 and Figure 3 As shown, the main channel 41 refers to the channel structure used to carry ink and provide the main flow path. It can be implemented by adopting a straight line, a wave shape or other directional geometry, with the purpose of providing a stable main channel for ink and ensuring that the ink is evenly distributed in the main direction.

[0035] The connecting groove 42 is a transition structure for connecting different main grooves 41. It can be realized by arc, broken line, straight line or other suitable geometric form. The purpose is to promote the interconnection of ink between different main grooves 41 and avoid the occurrence of local stagnation.

[0036] See Figure 2 and Figure 3 As shown, the serpentine flow channel 4 is provided with mesh holes 7 penetrating through its corresponding channel wall, and the mesh holes 7 are evenly distributed on the side wall of the serpentine flow channel 4. In other words, the aforementioned mesh holes 7 are evenly provided on the channel walls of the main flow channel 41 and the connecting channel 42, which can connect all the main flow channels 41 and the connecting channels, constructing a multi-directional interconnected ink flow network, effectively addressing the uniform leveling requirements in high-volume ink printing.

[0037] As an optional implementation, see Figure 2 and Figure 3 As shown, the arc-shaped flow guide includes a first main arc-shaped flow guide 61, wherein: the first main arc-shaped flow guide 61 is located in the center of the fluid channel of the main flow channel 41, and the corresponding flow channel 5 is formed between the first main arc-shaped flow guide 61 and the inner sidewall of the main flow channel 41.

[0038] See Figure 2 and Figure 3 As shown, the first main arc-shaped guide section 61 refers to the protruding structure set in the central area of ​​the main flow channel 41. Its function is to effectively divide the fluid channel of the main flow channel 41 by positioning it in the center, thereby optimizing the ink flow path.

[0039] See Figure 3 At this location, the flow channel 5 refers to the stable flow path formed by the gap between the first main arc-shaped flow guide 61 and the inner sidewall of the main flow channel 41. Different flow guide effects can be achieved by adjusting the height, width and radius of curvature of the flow guide, with the aim of promoting continuous sliding of ink along the sidewall rather than random accumulation.

[0040] See Figure 2 and Figure 3 As shown, the arc-shaped guide section also includes a second main arc-shaped guide section 62, wherein: there are two second main arc-shaped guide sections 62 located on the opposite inner sidewalls of the main channel 41, and the corresponding flow channel 5 is formed between the two adjacent second main arc-shaped guide sections 62.

[0041] See Figure 2 and Figure 3As shown, the second main arc-shaped guide section 62 refers to the arc-shaped structure disposed on the inner sidewall of the main flow channel 41, which can be implemented by protruding arc-shaped ribs, arc-shaped protrusions, or other similar structures. The purpose of the above structure is to expand the diversity of ink flow paths by introducing the second main arc-shaped guide section 62 into the sidewall region of the main flow channel 41, thereby improving the uneven flow leveling problem caused by unidirectional flow guidance, and especially preventing ink from stagnating on the inner sidewall of the serpentine flow channel 4.

[0042] See Figure 3 Here, the flow channel 5 refers to the fluid passage formed by the space between two adjacent second main arc-shaped flow guides 62. Its function is to guide the ink to spread laterally along the length of the main flow channel 41 in order to accelerate the connection and spread of dot-shaped ink droplets.

[0043] As an optional implementation method, Figure 2 and Figure 3 As shown, the first main arc-shaped guide section 61 and the second main arc-shaped guide section 62 are arranged alternately along the length direction of the same main channel 41.

[0044] The aforementioned structure allows the flow channels 5 to alternate along the length of the main flow channel 41, avoiding channel concentration or gaps caused by a single type of arc-shaped guide section. As the ink flows through the main flow channel 41, it can be continuously guided to the substrate surface, reducing local breakpoints and promoting rapid ink connection and uniform leveling. Furthermore, the alternating arrangement of the main flow channel 41 and connecting channel 42 in the anilox roller, in conjunction with the arc-shaped guide sections, further enhances ink release and leveling performance, effectively overcoming the microscopic unevenness defects caused by dotted distribution in high-volume ink printing.

[0045] As an optional implementation method, Figure 2 and Figure 3 As shown, in the same main channel 41, the concave sides of all the first main arc-shaped guide sections 61 and all the second main arc-shaped guide sections 62 face the same direction.

[0046] The above structure allows the ink to be continuously and coherently guided as it flows through the same main channel 41, reducing the occurrence of local turbulence or dispersion effects and ensuring a high degree of consistency in the direction of ink flow, thereby significantly improving the spreading efficiency and leveling quality of the ink on the substrate.

[0047] As an optional implementation method, Figure 2 and Figure 3 As shown, in two adjacent main flow channels 41, the first main arc-shaped flow guide 61 located in different main flow channels 41 faces opposite directions.

[0048] As ink is transferred from the anilox roller to the substrate, the flow channels 5 of the different main flow channels 41 exhibit opposing flow directions. Based on the parallel distribution of the main flow channels 41, this opposing orientation causes localized vortices or shearing effects to form at the interface of adjacent areas, thereby enhancing the ink's lateral diffusion capability. Combined with the overall structure of the serpentine flow channel 4, this feature enables the ink to quickly establish a continuous spreading path on the substrate surface, significantly improving the uniformity of ink adhesion, fundamentally suppressing the generation of microscopic unevenness, and optimizing leveling performance in high-volume ink printing.

[0049] As an optional implementation method, Figure 2 and Figure 3 As shown, the arc-shaped flow guide includes a corner arc-shaped flow guide 63, which is located at opposite ends within the connecting groove 42, and the convex sides of the two corner arc-shaped flow guides 63 are both facing the corner of the serpentine flow groove 4.

[0050] The corner arc-shaped guide section 63 refers to a guide structure with an arc-shaped profile, which can be implemented using a circular arc, an elliptical arc, or other smoothly transitioned curved surface shapes. The purpose of this structure is to reduce ink flow resistance through the arc-shaped surface and avoid ink stagnation caused by sharp edges. The opposite ends within the connecting groove 42 refer to the inlet and outlet areas where the connecting groove 42 connects to the main flow groove 41. This location is chosen to cover the critical transition points when the ink changes direction, thereby effectively reducing flow dead zones.

[0051] In addition, the convex side of the corner arc-shaped guide section 63 faces the corner of the serpentine flow channel 4. This specific orientation structure can actively guide the ink to flow to the corner, promoting the continuous flow of ink in the complex flow channel.

[0052] In the above-described structure of this embodiment, the ink flows more smoothly in the anilox roller, especially at the end corner of the connecting groove 42, where the ink retention phenomenon is significantly improved, thereby enhancing the leveling effect and the uniformity of ink release.

[0053] As an optional implementation method, Figure 2 and Figure 3 As shown, within the same main channel 41, all arc-shaped guide sections are evenly spaced along the length of the main channel 41.

[0054] The aforementioned structure effectively avoids dimensional differences in the flow channel 5 caused by irregular positioning of the guide section, thereby reducing flow rate fluctuations during ink flow. This not only improves the ink release performance of the anilox roller but also significantly enhances the leveling effect of the ink on the substrate, providing a reliable technical guarantee for achieving high-quality, high-volume ink printing.

[0055] The specific features, structures, or characteristics described in this specification may be combined in any suitable manner in one or more embodiments or examples.

[0056] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0057] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. An anilox roller that facilitates high ink flow leveling, characterized in that, Including the coating on the roller body and its surface, wherein: The coating is provided with a serpentine flow channel, and an arc-shaped flow guide is provided inside the serpentine flow channel, the arc-shaped flow guide protruding from the bottom of the serpentine flow channel; A flow channel is formed between adjacent arc-shaped flow guides, or between the arc-shaped flow guides and the inner wall of the serpentine flow channel, to guide and promote the spread of ink on the substrate.

2. The anilox roller for high ink leveling according to claim 1, characterized in that, The serpentine flow channel includes a main flow channel and a connecting channel, wherein: All the main channels are arranged in parallel, the connecting channel is connected to the end of the main channel and connects two adjacent main channels, and the two connecting channels connected to the two ends of the same main channel extend in opposite directions.

3. The anilox roller for high ink leveling according to claim 1, characterized in that, The serpentine flow channel is provided with mesh holes that penetrate the corresponding channel wall, and the mesh holes are evenly distributed on the side wall of the serpentine flow channel.

4. The anilox roller for high ink leveling according to claim 2, characterized in that, The arc-shaped flow guide includes a first main arc-shaped flow guide and a second main arc-shaped flow guide, wherein: The first main arc-shaped guide section is located in the center of the fluid channel of the main flow channel, and the corresponding flow channel is formed between the first main arc-shaped guide section and the inner wall of the main flow channel; There are two second main arc-shaped guide sections located on the opposite inner sidewalls of the main flow channel, and the corresponding flow channel is formed between two adjacent second main arc-shaped guide sections.

5. The anilox roller for high ink leveling according to claim 4, characterized in that, The first main arc-shaped guide section and the second main arc-shaped guide section are arranged alternately along the length direction of the same main channel.

6. The anilox roller for high ink leveling according to claim 4, characterized in that, In the same main channel, the concave sides of all the first main arc-shaped guide sections and all the second main arc-shaped guide sections face the same direction.

7. The anilox roller for high ink leveling according to claim 4, characterized in that, In two adjacent main flow channels, the first main arc-shaped flow guides located in different main flow channels face opposite directions.

8. The anilox roller for high ink leveling according to claim 2, characterized in that, The arc-shaped flow guide includes a corner arc-shaped flow guide, which is located at opposite ends within the connecting groove, and the convex sides of both corner arc-shaped flow guides face the corner of the serpentine flow groove.

9. The anilox roller for high ink leveling according to claim 2, characterized in that, Within the same main channel, all the arc-shaped guide sections are arranged at uniform intervals along the length of the main channel.

10. The anilox roller for high ink leveling according to claim 1, characterized in that, The coating is a ceramic coating.

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