TWM587597U - Roller with high-resolution and high-volume mesh pattern - Google Patents

Abstract

The new model is a roller with a high-resolution and high-volume mesh pattern. It has a body and a pattern layer formed on the surface of the body. The pattern layer is composed of a plurality of meshes, and the wall surface of each mesh is a curved surface to provide a comparative The large volume can reduce the surface area of each mesh, so that the pattern layer contains more meshes. Therefore, the new model can effectively improve the resolution of the pattern layer.

Description

Roller with high-resolution and high-volume mesh pattern

The invention relates to a cylinder with a pattern mesh, which refers to a cylinder used for cylinder printing and having a high-resolution and high-volume mesh pattern.

Roller printing is generally used to transfer the liquid raw materials in the pattern mesh volume on the roller to the target. The application level ranges from daily advertising packaging, decorative stickers, label paper, etc. to the printing of alignment films for liquid crystal displays in the electronics industry. , Can pass through the drum with a pattern mesh on the surface, to apply liquid raw materials on the target according to the resolution and volume of the preset pattern, and then constitute the final product.

For the production of alignment films for printed liquid crystal displays, the surface of the prior art cylinder has a preset mesh pattern, which is applied to the surface of the substrate in a solution state corresponding to the material of the alignment film to be printed, and each mesh is filled with liquid raw materials. , Exclude the ink overflow through the rubber wheel (or add a scraper system), and then transfer the liquid material in the mesh to the target. The liquid material in the mesh must have a sufficient amount to be able to transfer the desired preset orientation. The thickness and uniformity of the film. If the thickness of the transferred film is uneven, the product quality will be abnormal. For example, if it is an alignment film for a liquid crystal display, the excessive variation in film thickness will cause the liquid crystal display to appear residual when displaying the screen. Shadow. However, please refer to FIG. 5, the mesh 30 of the prior art has a tapered design at the bottom, and the liquid material that can be accommodated is limited. Therefore, the upper part of each mesh needs a larger width (diameter) to have a sufficient volume (volume). The larger the mesh width (diameter) of the required liquid raw material, the smaller the mesh surface (ie the resolution per unit area) of the prior art roller surface in the same unit area (such as per square inch), Such as the number of mesh lines per square inch) The required amount of coating per unit area or film thickness is achieved for the transfer. Therefore, the resolution of the mesh pattern provided by the roller in the prior art is low.

In view of this, the present invention is to improve the disadvantages of the prior art in order to obtain a drum with a high-resolution and high-volume mesh pattern.

In order to achieve the above-mentioned new purpose, the technical means adopted by the present invention is to provide a high-resolution and high-volume mesh pattern drum, which includes: a body; a pattern layer formed on the surface of the body, and the pattern layer includes There are many meshes. The shape of the meshes can be hexagonal, etc. The side walls and bottom walls of each mesh are connected to a continuous arc-shaped (wide bowl-shaped bottom) curved surface with a wide bottom wall.

The advantage of the new model is that the volume of each mesh can be increased through the design of the curved surface of each mesh, so the surface area of the mesh can be reduced to provide sufficient volume. Therefore, the number of meshes that the pattern layer can have is relatively Increase, increase the resolution; that is, under the same unit area, the number of meshes (or the resolution of the unit area, such as the number of mesh lines per square inch) can reach a relatively small number of meshes. The same volume can still be obtained.

10‧‧‧ Ontology

20‧‧‧ pattern layer

21‧‧‧Net

211‧‧‧ Surface

30‧‧‧ Mesh

301‧‧‧ underside

Fig. 1 is a perspective view of the drum of the new model.

FIG. 2 is an enlarged view of the surface pattern layer of the drum of the present invention.

FIG. 3 is a schematic perspective view of a part of the mesh of the surface pattern layer of the new-type drum.

FIG. 4 is a side view of a single mesh of the surface pattern layer of the new drum.

FIG. 5 is a side view of a single mesh of a drum surface pattern layer in the prior art.

In the following, with reference to the drawings and the embodiments of the present invention, the technical measures adopted by the present invention to achieve the intended new purpose are further explained.

Please refer to FIG. 1, the drum of the present invention includes a body 10 and a surface pattern layer 20.

Please refer to FIG. 1 and FIG. 2, the roller surface pattern layer 20 is carved on the surface of the body 10. In one embodiment, the body 10 may be an iron body, and the pattern layer 20 may be a ceramic material. The mesh pattern may be formed by using a conventional carbon dioxide gas laser or a new-type optical fiber laser. The pattern layer 20 includes a plurality of meshes 21, and the surface shape of each mesh 21 may be a hexagonal shape (e.g., a honeycomb shape as a whole), a quadrangular shape (e.g., a diamond shape), a threaded type (e.g., a diagonal line type), a Gulfstream In one embodiment, the resolution of the mesh 21 may be 40 to 1,200 LPI (Lines Per Inch).

Please refer to FIG. 3, FIG. 4 and FIG. 5. The side wall and the bottom wall of each mesh 21 are continuous as a continuous curved surface 211. In one embodiment, the curved surface 211 is a circular arc with a wide bottom wall (wide (Bowl-shaped bottom) curved surface, and the slope angle of the side wall is larger and closer to vertical (about 75 ~ 90 degrees). Compared with the traditional mesh pattern, the bottom surface 301 has a narrow arc-shaped (narrow bowl-shaped bottom) curved surface, And the side wall slope angle is small (about 45 ~ 75 degrees).

The production of the new type of roller is based on the dynamic balance detection of the body 10 with an instrument. The reasonable distribution of the mass of the roller can make the rotation axis and the mass axis of the body 10 consistent, so as to avoid the centrifugal force of the roller during subsequent use. Jitter occurs. Next, a sandblasting operation is performed on the surface of the body 10 to create a surface roughness, which can increase the binding force between the surface and the metal alloy sprayed subsequently. Subsequently, a metal alloy (such as nickel-chromium alloy) is sprayed on the surface of the body 10 as a rust-proof bottom layer, and a ceramic layer material (such as chromium trioxide) is sprayed on the rust-proof bottom layer to form a dense and solid ceramic layer, and then Will shape The subsequent ceramic layer is ground and polished. The rough surface of the rough layer of the ceramic layer is trimmed by a grinder, and the diamond polishing belts of different thicknesses are used to remove the grinding wheel grinding marks remaining during grinding to reduce the Roughness and increase smoothness. The laser engraving process is subsequently performed to scribe the pattern layer 20 on the surface of the ceramic layer. The new multi-beam (such as three-beam) fiber laser can be used to shape the curved surface 211 of the mesh 21 to have a wide bottom wall. Smooth curved surface with a wide bowl-shaped bottom and a large slope angle on the side wall. Finally, the pattern layer 20 is lightly polished to trim the flatness of the inner wall of the mesh 21 and high-pressure water mist cleaning to remove the residuals in the mesh 21 Swarf, and surface treatment to complete the new type of roller, which can greatly reduce the chance of remaining in the mesh 21 during the transfer of the liquid raw material.

In the use of the present invention, taking an alignment film applied to the manufacture of a liquid crystal display as an example, an alignment film liquid (such as polyimide, PI) is sprayed onto the roller of the new model, so that the alignment film liquid flows into the pattern layer 20. In the mesh 21, the excess liquid on the surface is removed by a scraper or a rubber wheel, and then the pattern layer 20 of the new cylinder is transferred to the relief plate (resin plate) of the printing plate cylinder through the alignment film, and then passed through The relief is transferred to the substrate to complete the alignment film process.

Since the side wall and bottom wall of each mesh 21 of the novel pattern layer 20 are continuous as a continuous curved surface 211, which has a wider arc-shaped (wide bowl-shaped bottom) curved surface on the bottom wall, and the side wall slope angle is larger, Compared with the cone-shaped wall surface of the bottom layer 301 of the prior art pattern layer, the bottom wall has a narrow arc-shaped (narrow bowl-shaped bottom) curved surface, and the slope angle of the side wall is small. Therefore, the meshes of the new model can The provided volume is large, so the surface area of each mesh 21 of the new model can be reduced under the premise of providing the same volume, and the pattern layer 20 can be divided into more meshes 21, which can effectively improve what the pattern layer 20 can provide. Mesh resolution; that is, under the same unit area, a larger number of meshes (or a resolution per unit area, such as the number of mesh lines per square inch) can reach a relatively small number of meshes, while still being able to Obtain the same volume.

The above description is only an embodiment of the present invention, and does not limit the form of the present invention in any form. Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Those with ordinary knowledge in the technical field can make use of the disclosed technical content to make minor changes or modifications to equivalent embodiments without departing from the scope of the new technical solution, but those who do not depart from the new technical solution Any simple modifications, equivalent changes, and modifications made to the above embodiments in accordance with the technical essence of the new model still fall within the scope of the new technical solution.

Claims (4)

A high-resolution and high-volume mesh pattern drum includes a body and a pattern layer formed on the surface of the body. The pattern layer includes a plurality of meshes, and the side walls and the bottom wall of each mesh are continuous. And the bottom wall has a wide arc-shaped surface. The high-resolution and high-volume mesh pattern roller according to claim 1, wherein a slope angle of a sidewall of the curved surface is 75 to 90 degrees. The high-resolution and high-volume mesh pattern drum according to claim 1, wherein the mesh has a resolution of 40 to 1,200 LPI (Lines Per Inch). The roller of the high-resolution and high-volume mesh pattern as described in claim 1, wherein the surface shape of each mesh is a hexagonal shape, a quadrangular shape, a diamond shape, a thread type, a diagonal line type, and a Gulfstream type.