Surface processing method of metal roller

Abstract

The invention discloses a surface processing method for a metal roller, which comprises the following steps of: arranging the metal roller on a bearing seat, and connecting the metal roller to a rotating mechanism arranged on the bearing seat, so that the metal roller can rotate through the rotating mechanism; and a photocuring pattern forming device is used for respectively carrying out dotted extrusion operation once on the plurality of areas of the metal roller to form a unit pattern, so that the plurality of unit patterns respectively formed in the plurality of areas jointly form a preset pattern layer. Wherein the light curing pattern forming device comprises a light curing agent with the viscosity smaller than 10 centipoises, each time of dotted extrusion operation is that the light curing agent is extruded and output to the metal roller by the light curing pattern forming device so as to form a plurality of protrusions, and the plurality of protrusions jointly form one unit pattern. Accordingly, the unit patterns are formed in an extrusion mode, so that the overall machining efficiency is effectively improved, and the high-precision machining effect can be achieved.

Description

Technical Field

[0001] The invention relates to a roller processing method, in particular to a surface processing method of a metal roller. Background Art

[0002] The outer surface patterning of the existing metal roller requires first forming a photoresist layer by coating, and then patterning the photoresist layer by an exposure and development process. However, the photoresist layer formed by the above coating method must reach a larger thickness to be more uniform, so the coating method and the exposure and development process will make the overall process longer, thereby reducing manufacturing efficiency.

[0003] Therefore, the inventors believe that the above defects can be improved, and have devoted themselves to research and applied scientific principles, and finally proposed the present invention which has a reasonable design and effectively improves the above defects. Summary of the invention

[0004] An embodiment of the present invention provides a surface processing method for a metal roller, which can effectively improve the defects that may be generated in the patterning process of the existing metal roller.

[0005] The embodiment of the present invention discloses a surface processing method for a metal roller, which includes: a preparation step: providing a patterning device, which includes: a carrier; a rotating mechanism, which is arranged on the carrier; and a photocuring pattern forming device, which is configured corresponding to the carrier, and the photocuring pattern forming device includes a photocuring agent with a viscosity less than 10 centipoise; a placement step: arranging a metal roller on the carrier and connecting it to the rotating mechanism so that the metal roller can rotate through the rotating mechanism; and a patterning step: performing a point-shaped extrusion operation on multiple areas of the metal roller by the photocuring pattern forming device to form a unit pattern, so that the multiple unit patterns formed in the multiple areas together constitute a preset pattern layer; wherein each point-shaped extrusion operation is performed by the photocuring pattern forming device to extrude and output the photocuring agent to the metal roller to form multiple protrusions, and the multiple protrusions together constitute a unit pattern.

[0006] Preferably, in the preparation step, the patterning equipment further includes a displacement mechanism disposed on a carrier, and the photocuring pattern forming device is installed on the displacement mechanism; in the patterning step, the photocuring pattern forming device is moved by the displacement mechanism to form multiple unit patterns in multiple areas of the metal roller respectively.

[0007] Preferably, in the preparation step, the photocuring pattern forming device further includes: a push cylinder and a patterned metal sheet, the push cylinder includes: a container, the inner wall of which is surrounded by a accommodating space, and the photocuring agent is located in the accommodating space; wherein the container has an input end and an output end connected to the accommodating space; and a push rod, having an extrusion portion, which is inserted into the accommodating space of the container from the input end; wherein the extrusion portion abuts against the inner wall of the container so that the accommodating space can only be connected to the outside through the output end; the patterned metal sheet is fixed to the output end of the container, and the patterned metal sheet is formed with a plurality of micropores; wherein, in each point extrusion operation, each protrusion is composed of the photocuring agent output by a micropore.

[0008] Preferably, in the preparation step, the manufacturing process of the patterned metal sheet includes: forming a plurality of dot-shaped photoresists spaced apart from each other on a surface of a metal carrier; wherein the surface of the metal carrier has a plating area not covered by the plurality of dot-shaped photoresists; performing electroplating on the plating area of ​​the metal carrier to form a patterned metal sheet surrounding the plurality of dot-shaped photoresists; separating the patterned metal sheet from the metal carrier and the plurality of dot-shaped photoresists to form a plurality of microholes; and fixing the patterned metal sheet to the output end of the container.

[0009] Preferably, the material of the patterned metal sheet is different from the material of the metal carrier plate and the material of the metal roller.

[0010] Preferably, the metal roller is a copper roller or a chrome roller, the material of the metal carrier is a copper metal plate, and the patterned metal sheet is a nickel metal sheet.

[0011] Preferably, the plurality of micropores are arranged in a matrix along a first direction and a second direction perpendicular to each other, and any two adjacent micropores along the first direction are separated by a first spacing, while any two adjacent micropores along the second direction are separated by a second spacing equal to the first spacing.

[0012] Preferably, the plurality of micro-holes are circular with the same diameter, and the first spacing is equal to the diameter of any micro-hole.

[0013] Preferably, the light curing agent is an ultraviolet light curing ink, and the diameter of the micropores is no more than 2 micrometers (μm).

[0014] Preferably, the outer surface of the metal roller has a first forming area exposed outside the preset pattern layer, and a second forming area covered by the preset pattern layer. The surface processing method of the metal roller further includes: a metal etching step: etching the outer surface of the metal roller by a dry etching method so that the metal roller is concavely formed with a plurality of grooves in the first forming area; wherein the appearance of the plurality of grooves corresponds to the preset pattern layer to jointly constitute an intermediate three-dimensional pattern; and a forming etching step: etching from the intermediate three-dimensional pattern to remove the preset pattern layer, and concavely forming a rolled three-dimensional pattern on the outer surface of the metal roller, and the rolled three-dimensional pattern corresponds to the intermediate three-dimensional pattern.

[0015] Compared with the prior art, the surface processing method of the metal roller provided in the embodiment of the present application has at least the following beneficial effects:

[0016] The surface processing method of the metal roller disclosed in the embodiment of the present invention adopts the patterning step of directly forming the unit pattern by extrusion, thereby replacing the time-consuming and cost-consuming existing coating method and the existing exposure and development process, thereby effectively improving the overall processing efficiency and achieving high-precision processing results.

[0017] To further understand the features and technical contents of the present invention, please refer to the following detailed description and drawings of the present invention. However, such description and drawings are only used to illustrate the present invention and are not intended to limit the protection scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of a patterning device according to an embodiment of the present invention provided with a metal roller.

[0019] Figure 2 for Figure 1 Schematic diagram of a bottom view of a photocurable pattern forming device in FIG.

[0020] Figure 3 FIG. 1 is a manufacturing process (I) of a patterned metal sheet according to an embodiment of the present invention.

[0021] Figure 4 FIG. 2 is a manufacturing process (II) of a patterned metal sheet according to an embodiment of the present invention.

[0022] Figure 5 This is the manufacturing process (III) of the patterned metal sheet according to an embodiment of the present invention.

[0023] Figure 6 It is a three-dimensional schematic diagram of a patterning device according to an embodiment of the present invention forming a preset pattern layer on a metal roller.

[0024] Figure 7 for Figure 6Schematic side view of .

[0025] Figure 8 for Figure 7 Schematic enlargement of region VIII.

[0026] Fig. 9 for Figure 8 Schematic diagram of subsequent processing.

[0027] Fig.10 for Fig. 9 Schematic diagram of subsequent processing. DETAILED DESCRIPTION

[0028] The following is an explanation of the implementation method of the "surface processing method of a metal roller" disclosed in the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. The present invention can be implemented or applied through other different specific embodiments, and the details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present invention. In addition, the drawings of the present invention are only simple schematic illustrations and are not depicted according to actual dimensions. It is stated in advance. The following implementation methods will further explain the relevant technical contents of the present invention in detail, but the disclosed contents are not intended to limit the scope of protection of the present invention.

[0029] It should be understood that, although the terms "first", "second", "third", etc. may be used herein to describe various components or signals, these components or signals should not be limited by these terms. These terms are mainly used to distinguish one component from another component, or one signal from another signal. In addition, the term "or" used herein may include any one or more combinations of the associated listed items depending on the actual situation.

[0030] See also Figures 1 to 10 , which is an embodiment of the present invention. This embodiment discloses a surface processing method for a metal roller, which sequentially includes: a preparation step S110, a placement step S120, a patterning step S130, a metal etching step S140 and a forming etching step S150. The specific implementation of the above-mentioned multiple steps S110-S150 will be described in sequence below, but they can also be adjusted and changed according to design requirements.

[0031] The preparation step S110: Figure 1 and Figure 2As shown, a patterning device 100 is provided. In this embodiment, the patterning device 100 includes a carrier 2, a rotating mechanism 3 and a displacement mechanism 4 disposed on the carrier 2, and a photocuring pattern forming device 1 configured corresponding to the carrier 2 and installed on the displacement mechanism 4, but the present invention is not limited thereto. For example, in other embodiments not shown in the present invention, the rotating mechanism 3 and / or the displacement mechanism 4 can be omitted or replaced by other components according to design requirements.

[0032] Furthermore, the support base 2 in this embodiment is used to provide a metal roller 200 for installation, and the metal roller 200 is preferably cylindrical, and the rotating mechanism 3 can connect and rotate the metal roller 200, but the present invention is not limited thereto. For example, in other embodiments not shown in the present invention, the support base 2 can also be used to provide the metal roller 200 in a flat or curved shape.

[0033] Furthermore, the photocurable pattern forming device 1 can be moved by the displacement mechanism 4, and the displacement mechanism 4 can be a mechanism that can move along the X-axis-Y-axis-Z-axis with an accuracy within 1 micron (μm). The photocurable pattern forming device 1 includes a photocuring agent 11 (such as ultraviolet light curing ink) with a viscosity less than 10 centipoise (cP), and the photocurable pattern forming device 1 is limited to outputting the photocuring agent 11 in an extrusion manner. Accordingly, the photocurable pattern forming device 1 can be used (moved by the displacement mechanism 4) to form a plurality of unit patterns U in a plurality of regions of the metal roller 200, and the plurality of unit patterns U together constitute a preset pattern layer P.

[0034] It should be additionally explained that, under the premise that the photocuring pattern forming device 1 can achieve the above-mentioned functions to facilitate the implementation of subsequent steps, its structure can be adjusted and changed according to design requirements; and for ease of understanding, this embodiment only lists one of the preferred implementation structures of the photocuring pattern forming device 1 in the following content for illustration, but the present invention is not limited to this.

[0035] Specifically, the photocurable pattern forming device 1 in this embodiment includes a push cylinder 12 and a patterned metal sheet 13 fixed on the push cylinder 12. The push cylinder 12 includes a container 121 and a push rod 122 movably inserted in the container, and the photocurable pattern forming device 1 is fixed to the displacement mechanism 4 by the container 121.

[0036] Specifically, the container 121 is cylindrical in this embodiment and its inner wall surrounds a receiving space 1211, and the container 121 has an input end 1212 and an output end 1213 connected to the receiving space 1211. The input end 1212 and the output end 1213 are located at opposite ends of the container 121 and are each in the shape of a circular hole, but the present invention is not limited thereto.

[0037] Furthermore, the push rod 122 has a pressing portion 1221 at its end, and the pressing portion 1221 is inserted into the accommodating space 1211 of the container 121 from the input end 1212. The push rod 122 can be driven by the displacement mechanism 4, and the pressing portion 1221 abuts against the inner wall of the container 121 so that the accommodating space 1211 can only be connected to the outside through the output end 1213. In other words, the photocuring agent 11 is located in the accommodating space 1211, and the pressing portion 1221 preferably abuts against the inner wall of the container 121 without a gap, so that the photocuring agent 11 will not flow to the input end 1212 along the pressing portion 1221.

[0038] The patterned metal sheet 13 is formed with a plurality of micropores 131, and the patterned metal sheet 13 is fixed to the output end 1213 of the container 121, so that the accommodating space 1211 can only communicate with the outside through the output end 1213 along the plurality of micropores 131. In this embodiment, the plurality of micropores 131 are circular with the same diameter D131 (e.g., not greater than 2 microns), and the plurality of micropores 131 are arranged in a matrix along a first direction D1 and a second direction D2 that are perpendicular to each other.

[0039] Any two adjacent micro-holes 131 along the first direction D1 are separated by a first spacing G1, and any two adjacent micro-holes 131 along the second direction D2 are separated by a second spacing G2 equal to the first spacing G1. Furthermore, the first spacing G1 is equal to the diameter D131 of any micro-hole 131.

[0040] In addition, the shapes and arrangements of the plurality of micro-holes 131 of the patterned metal sheet 13 can be adjusted and varied according to different requirements. Therefore, the following describes the manufacturing process of the patterned metal sheet 13, which includes: Figures 3 to 5As shown, a plurality of dot-shaped photoresists 400 spaced apart from each other are formed on a surface of a metal carrier 300; wherein the surface of the metal carrier 300 has a plating area 301 not covered by the plurality of dot-shaped photoresists 400; electroplating is performed on the plating area 301 of the metal carrier 300 to form a patterned metal sheet 13 surrounding the plurality of dot-shaped photoresists 400; the patterned metal sheet 13 is separated from the metal carrier 300 and the plurality of dot-shaped photoresists 400 to form a plurality of micro-holes 131; and the patterned metal sheet 13 is fixed to the output end 1213 of the container 121 (e.g., Figure 2 ).

[0041] It should be noted that if Figures 1 to 5 As shown, the material of the patterned metal sheet 13 is different from the material of the metal carrier 300 and the material of the metal roller 200. In this embodiment, the patterned metal sheet 13 is a nickel metal sheet, the metal carrier 300 is a copper plate, and the metal roller 200 is a copper roller or a chrome roller, but the present invention is not limited thereto.

[0042] As described above, when the displacement mechanism 4 moves the photocurable pattern forming device 1 to the corresponding metal roller 200, the push rod 122 can move the extrusion portion 1221 along the inner wall of the container 121 toward the patterned metal sheet 13, so that the photocuring agent 11 is output from the plurality of micropores 131 to the metal roller 200 and (further cured) forms the unit pattern U (e.g.: Figure 6 ). Wherein, the unit pattern U includes a plurality of protrusions 111 (eg: Figure 6 ), and each of the protrusions 111 is composed of the photocuring agent 11 output by one of the micropores 131.

[0043] Accordingly, the photocuring pattern forming device 1 in this embodiment is able to replace the existing related devices for patterning the outer surface of the metal roller through the cooperation between the push cylinder 12, the patterned metal sheet 13 and the photocuring agent 11 with a specific viscosity (e.g., less than 10 centipoise), and effectively improve the processing efficiency and achieve high-precision processing results.

[0044] The above is a description of the preparation step S110 (or the structure of the photocurable pattern forming device 1 ) of this embodiment. The following will further describe the subsequent steps of the surface processing method of the metal roller and the detailed coordination process between the method and the photocurable pattern forming device 1 .

[0045] The step S120 of placing components: Figure 1 and Figure 2As shown, the metal roller 200 is disposed on the support seat 2 and connected to the rotating mechanism 3, so that the metal roller 200 can rotate (relative to the photocuring pattern forming device 1) through the rotating mechanism 3. In other words, the metal roller 200 can rotate by itself through the rotating mechanism 3.

[0046] The patterning step S130: Figures 6 to 8 As shown, the photocurable pattern forming device 1 performs a dot extrusion operation on each of the multiple regions of the metal roller 200 to form a unit pattern U, so that the multiple unit patterns U formed in the multiple regions together constitute the preset pattern layer P. In other words, the photocurable pattern forming device 1 is moved by the displacement mechanism 4 to form the multiple unit patterns U in the multiple regions of the metal roller 200.

[0047] In more detail, each time the dot-shaped extrusion operation is performed, the photocuring pattern forming device 1 extrude and output the photocuring agent 11 to the metal roller 200 to (further solidify) form a plurality of protrusions 111, and the plurality of protrusions 111 together constitute a unit pattern U. In each dot-shaped extrusion operation, each protrusion 111 is formed by the photocuring agent 11 output by one of the microholes 131. Furthermore, in this embodiment, the outer surface of the metal roller 200 has a first forming area 201 exposed outside the preset pattern layer P and a second forming area 202 covered by the preset pattern layer P.

[0048] Accordingly, the patterning step S130 adopted in the surface processing method of the metal roller in this embodiment is to directly form the unit pattern U by extrusion, thereby replacing the time-consuming and cost-consuming existing coating method and the existing exposure and development process, thereby effectively improving the overall processing efficiency and achieving high-precision processing results.

[0049] The metal etching step S140: Fig. 9 As shown, the outer surface of the metal roller 200 is etched by dry etching so that the metal roller 200 is concavely provided with a plurality of grooves 2011 in the first forming area 201. The shapes of the plurality of grooves 2011 correspond to the preset pattern layer P, so as to form an intermediate three-dimensional pattern M together.

[0050] The forming etching step S150: Fig.10As shown, etching is performed from the intermediate three-dimensional pattern M to remove the preset pattern layer P, and the outer surface of the metal roller 200 is concavely formed to form a rolled three-dimensional pattern R, which corresponds to (e.g., is substantially the same as) the intermediate three-dimensional pattern M. Among them, the metal roller 200 has a portion formed by etching in the second forming area 202, and its appearance corresponds to (e.g., is substantially the same as) the preset pattern layer P.

[0051] It should be additionally explained that the surface processing method of the metal roller in this embodiment is to implement the above-mentioned multiple steps S110-S150 (such as: Figures 1 to 10 ), but the present invention is not limited thereto. For example, in other embodiments not shown in the present invention, at least one of the metal etching step S140 and the forming etching step S150 may be omitted or replaced in other ways according to design requirements.

[0052] In summary, the surface processing method of the metal roller disclosed in the embodiment of the present invention adopts the patterning step of directly forming the unit pattern by extrusion, thereby replacing the time-consuming and cost-consuming existing coating method and the existing exposure and development process, thereby effectively improving the overall processing efficiency and achieving high-precision processing results.

[0053] Furthermore, the patterning equipment and photocuring pattern forming device disclosed in the embodiments of the present invention can replace the related devices for patterning the outer surface of the existing metal roller through the cooperation between the push cylinder, the patterned metal sheet and the photocuring agent with a specific viscosity (e.g., less than 10 centipoise), and effectively improve the processing efficiency and achieve high-precision processing results.

[0054] The contents disclosed above are only preferred feasible embodiments of the present invention, and are not intended to limit the patent scope of the present invention. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles described in this application. These improvements and modifications should also be regarded as the protection scope of this application.

Claims

1. A surface processing method for a metal roller, characterized in that: include: A preparation step: providing a patterning device, which comprises: A bearing seat; A rotating mechanism, disposed on the bearing seat; and A light-curing pattern forming device, configured corresponding to the carrier seat, and the light-curing pattern forming device contains a light-curing agent with a viscosity less than 10 centipoise; a placement step: placing a metal roller on the bearing seat and connecting it to the rotating mechanism so that the metal roller can rotate through the rotating mechanism; as well as a patterning step: using the light-curing pattern forming device to perform a dot-shaped extrusion operation on each of the plurality of regions of the metal roller to form a unit pattern, so that the plurality of unit patterns formed in the plurality of regions together constitute a preset pattern layer; In each of the dot extrusion operations, the light-curing pattern forming device extrude and output the light-curing agent to the metal roller to form a plurality of protrusions, and the plurality of protrusions together constitute a unit pattern.

2. The surface processing method of a metal roller according to claim 1, characterized in that: In the preparation step, the patterning device further comprises a displacement mechanism disposed on the carrier, and the photocurable pattern forming device is mounted on the displacement mechanism; In the patterning step, the photocurable pattern forming device is moved by the displacement mechanism to form a plurality of the unit patterns in the plurality of regions of the metal roller.

3. The surface processing method of a metal roller according to claim 1, characterized in that: In the preparation step, the photocurable pattern forming device further comprises: a push cylinder and a patterned metal sheet; The push cylinder comprises: A container, whose inner wall surrounds a containing space, and the photocuring agent is located in the containing space; wherein the container has an input end and an output end connected to the containing space; and a push rod having a pressing portion, which is inserted into the accommodating space of the container from the input end; wherein the pressing portion abuts against the inner wall of the container so that the accommodating space can only be connected to the outside through the output end; The patterned metal sheet is fixed to the output end of the container, and the patterned metal sheet is formed with a plurality of micro holes; Wherein, in each of the dot extrusion operations, each of the protrusions is formed by the photocuring agent outputted from one of the microholes.

4. The surface processing method of a metal roller according to claim 3, characterized in that: In the preparation step, the manufacturing process of the patterned metal sheet includes: A plurality of dot-shaped photoresists spaced apart from each other are formed on a surface of a metal carrier; wherein the surface of the metal carrier has an electroplating area not covered by the plurality of dot-shaped photoresists; Performing electroplating on the electroplating area of ​​the metal carrier to form a patterned metal sheet surrounding the plurality of dot-shaped photoresists; Separating the patterned metal sheet from the metal carrier and the plurality of dot-shaped photoresists to form a plurality of micro-holes; and The patterned metal sheet is fixed to the output end of the container.

5. The surface processing method of a metal roller according to claim 4, characterized in that: The material of the patterned metal sheet is different from the material of the metal carrier plate and also different from the material of the metal roller.

6. The surface processing method of a metal roller according to claim 4, characterized in that: The metal roller is a copper roller or a chrome roller, the material of the metal carrier is a copper metal plate, and the patterned metal sheet is a nickel metal sheet.

7. The surface processing method of a metal roller according to claim 3, characterized in that: The plurality of micropores are arranged in a matrix along a first direction and a second direction perpendicular to each other, and any two adjacent micropores along the first direction are separated by a first spacing, while any two adjacent micropores along the second direction are separated by a second spacing equal to the first spacing.

8. The surface processing method of a metal roller according to claim 7, characterized in that: The plurality of micro-holes are circular with the same diameter, and the first interval is equal to the diameter of any one of the micro-holes.

9. The surface processing method of a metal roller according to claim 3, characterized in that: The photocuring agent is an ultraviolet light curing ink, and the diameter of the micropores is no more than 2 microns.

10. The surface processing method of a metal roller according to claim 1, characterized in that: The outer surface of the metal roller has a first forming area exposed outside the preset pattern layer and a second forming area covered by the preset pattern layer. The surface processing method of the metal roller further comprises: a metal etching step: etching the outer surface of the metal roller by dry etching so that the metal roller is concavely provided with a plurality of grooves in the first forming area; wherein the shapes of the plurality of grooves correspond to the preset pattern layer, so as to jointly form an intermediate three-dimensional pattern; and A forming etching step: etching from the intermediate three-dimensional pattern to remove the preset pattern layer, and concavely form a rolled three-dimensional pattern on the outer surface of the metal roller, wherein the rolled three-dimensional pattern corresponds to the intermediate three-dimensional pattern.

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