阅读说明：本技术 转印式滚轮的修复方法及转印式滚轮 (Method for repairing transfer printing type roller and transfer printing type roller ) 是由 林刘恭 于 2020-05-14 设计创作，主要内容包括：本发明公开一种转印式滚轮及其修复方法。所述转印式滚轮的修复方法包含前置步骤、置料步骤及成形步骤。在所述前置步骤中,提供一转印式滚轮与一修复模具。所述转印式滚轮形成有一纹路图案层,其具有一缺陷区域。所述修复模具的外形能与所述纹路图案层的局部互补。在所述置料步骤中,在所述缺陷区域设置有一修复材料,其能用来与所述纹路图案层产生共晶反应。在所述成形步骤中,加热所述转印式滚轮以软化所述修复材料,并将所述修复模具压迫于所述修复材料以使所述修复材料在所述缺陷区域形成补齐所述纹路图案层的一修补构造。所述转印式滚轮的修复方法能在不需更换整个现有的转印式滚轮的情况下,对现有的转印式滚轮的表面进行修复。(The invention discloses a transfer printing type roller and a repairing method thereof. The repairing method of the transfer printing type roller comprises a preposing step, a material placing step and a forming step. In the pre-step, a transfer printing roller and a repair mold are provided. The transfer printing type roller is provided with a grain pattern layer which is provided with a defect area. The shape of the repair mold can be complementary with the local part of the grain pattern layer. In the material placing step, a repair material is arranged in the defect area and can be used for generating eutectic reaction with the grain pattern layer. In the forming step, the transfer printing roller is heated to soften the repair material, and the repair mold is pressed on the repair material so that the repair material forms a repair structure for supplementing the grain pattern layer in the defect area. The method for repairing the transfer printing roller can repair the surface of the existing transfer printing roller under the condition that the whole existing transfer printing roller does not need to be replaced.)

1. A method for repairing a transfer roller is characterized by comprising the following steps:

a pre-step: providing a transfer printing type roller and a repairing mold; wherein, a grain pattern layer is formed on the outer edge of the transfer printing roller and is provided with a concave defect area; the repairing mould is provided with a structural surface, and the shape of the structural surface can be complementary with the local part of the grain pattern layer;

a material placing step: a repair material is arranged in the defect area and can be used for generating eutectic reaction with the grain pattern layer; and

a forming step: and heating the transfer printing roller to soften the repair material, and pressing the profile surface of the repair mould to the repair material so that the repair material forms a repair structure for supplementing the grain pattern layer in the defect area.

2. The method of claim 1, wherein an interfacial metal co-product is formed during the eutectic reaction between the repair material and the textured layer.

3. The method for repairing a transfer roller according to claim 1, wherein in the forming step, the temperature of heating the transfer roller is not more than 260 ℃, and the repair material and the grain pattern layer are subjected to the eutectic reaction by heating the transfer roller.

4. The method for repairing a transfer roller according to claim 1, wherein in the forming step, an outer edge of the repair structure and an outer edge of the grain pattern layer are aligned with each other and form a regular pattern.

5. The method of claim 4, wherein the regular pattern is a sine wave shaped surface, and any two adjacent peaks of the sine wave shaped surface are separated by a distance of 0.9 to 1.1 μm.

6. A transfer roller, comprising:

a wheel body in a cylindrical shape;

the grain pattern layer is formed on the outer surface of the wheel body and is provided with a concave defect area; and

and the repairing structure is filled in the defect area and is connected with the grain pattern layer without gaps, and the outer edge of the repairing structure and the outer edge of the grain pattern layer are cut to be level and form a regular pattern together.

7. The transfer roller as recited in claim 6, wherein the repair structure is formed of a material different from a material of the textured layer.

8. The transfer roller as claimed in claim 7, wherein the material of the textured layer comprises nickel metal, and the material of the repair structure comprises a tin-nickel intermetallic.

9. The transfer roller as claimed in claim 7, wherein the regular pattern is a sine wave shaped surface, and any two adjacent peaks of the sine wave shaped surface are separated by a distance of 0.9 to 1.1 μm.

Technical Field

The present disclosure relates to roller repairing methods and roller assemblies, and particularly to a method for repairing a transfer roller and a transfer roller assembly.

Background

In the conventional transfer roller, if there is a concave defect region on the surface, the defect region will cause a corresponding defect on the surface of the finished product manufactured by the conventional transfer roller. In addition, the conventional transfer roller is usually expensive, so that it is one of the important issues to be solved by the industry to provide a method for repairing the surface of the conventional transfer roller without replacing the entire conventional transfer roller.

The present inventors have considered that the above-mentioned drawbacks can be improved, and have studied and applied scientific principles to propose an invention that is designed reasonably and effectively to improve the above-mentioned drawbacks.

Disclosure of Invention

The present invention provides a method for repairing a transfer roller and a transfer roller, which can effectively overcome the defects of the existing method for repairing a transfer roller and the existing transfer roller.

An embodiment of the present invention provides a method for repairing a transfer printing roller, including: a pre-step: providing a transfer printing type roller and a repairing mold; wherein, a grain pattern layer is formed on the outer edge of the transfer printing roller and is provided with a concave defect area; the repairing mould is provided with a configuration surface, and the configuration surface has a shape which can be complementary with the local part of the grain pattern layer; a material placing step: a repair material is arranged in the defect area and can be used for generating eutectic reaction with the grain pattern layer; and a forming step: and heating the transfer printing roller to soften the repair material, and pressing the profile surface of the repair mould to the repair material so that the repair material forms a repair structure for supplementing the grain pattern layer in the defect area.

Preferably, an Interfacial Metal Compound (IMC) is generated in the eutectic reaction between the repair material and the textured layer.

Preferably, the texture pattern layer comprises nickel metal, the repair material comprises tin metal, and the interface metal co-compound is tin-nickel (Ni) intermetallic₃Sn₄)。

Preferably, in the forming step, the temperature of the transfer roller is heated to 260 ℃ or less, and the repair material and the grain pattern layer are subjected to eutectic reaction by heating of the transfer roller.

Preferably, in the forming step, the outer edge of the repair structure and the outer edge of the grain pattern layer are aligned with each other and form a regular pattern together.

Preferably, the regular pattern is a sine wave shaped surface, and any two adjacent peaks of the sine wave shaped surface are separated by a spacing between 0.9 micrometers (μm) and 1.1 micrometers.

An embodiment of the present invention provides a transfer printing roller, including: a wheel body in a cylindrical shape; the grain pattern layer is formed on the outer surface of the wheel body and is provided with a concave defect area; and a repairing structure which is filled in the defect area and is connected with the grain pattern layer without gaps, and the outer edge of the repairing structure and the outer edge of the grain pattern layer are cut to be even and form a regular pattern together.

Preferably, the material of the repairing structure is different from that of the grain pattern layer.

Preferably, the texture pattern layer comprises nickel metal, and the repair structure comprises tin-nickel (Ni) intermetallic metal₃Sn₄)。

Preferably, the regular pattern is a sine wave shaped surface, and any two adjacent peaks of the sine wave shaped surface are separated by a spacing between 0.9 micrometers (μm) and 1.1 micrometers.

One of the benefits of the invention is that the repair method of the transfer roller and the transfer roller provided by the invention can repair the surface of the existing transfer roller without replacing the whole existing transfer roller by the technical scheme of arranging a repair material in the defect area, wherein the repair material can be used for generating eutectic reaction with the grain pattern layer, and heating the transfer roller to soften the repair material, and pressing the configuration surface of the repair mold on the repair material to enable the repair material to form a repair structure for repairing the grain pattern layer in the defect area.

For a better understanding of the nature and technical content of the present invention, reference should be made to the following detailed description of the invention and the accompanying drawings, which are provided for illustration purposes only and are not intended to limit the scope of the invention in any way.

Drawings

Fig. 1 is a schematic view of a transfer roller according to an embodiment of the present invention.

FIG. 2 is a schematic diagram of a repair group according to an embodiment of the present invention.

Fig. 3 is a block diagram illustrating a repairing apparatus for a transfer roller according to an embodiment of the present invention.

Fig. 4 is an enlarged schematic view of a region IV in fig. 1.

Fig. 5 is an enlarged schematic view of the region V in fig. 1.

Fig. 6 is a schematic diagram illustrating a pre-step of a method for repairing a transfer roller according to an embodiment of the present invention.

Fig. 7 is a schematic view of a material placing step of a method for repairing a transfer roller according to an embodiment of the present invention.

Fig. 8 is a schematic view of a forming step of a method for repairing a transfer roller according to an embodiment of the present invention.

Fig. 9 is a schematic view of a forming step of a method for repairing a transfer roller according to an embodiment of the present invention.

Fig. 10 is a schematic diagram illustrating a separation step of a method for repairing a transfer roller according to an embodiment of the present invention.

Fig. 11 is a schematic view of a transfer roller according to an embodiment of the present invention.

Fig. 12 is an enlarged schematic view of the region XII in fig. 11.

Detailed Description

The following description is provided by way of specific embodiments of the present disclosure regarding the method for repairing a transfer roller and the transfer roller, and those skilled in the art will understand the advantages and effects of the present disclosure from the disclosure of the present disclosure. The invention is capable of other and different embodiments and its several details are capable of modification and various other changes, which can be made in various details within the specification and without departing from the spirit and scope of the invention. The drawings of the present invention are for illustrative purposes only and are not intended to be drawn to scale. The following embodiments will further explain the related art of the present invention in detail, but the disclosure is not intended to limit the scope of the present invention.

It will 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 used primarily to distinguish one element from another element or from one signal to another signal. In addition, the term "or" as used herein should be taken to include any one or combination of more of the associated listed items as the case may be.

[ transfer type roller repair device and repair set ]

Referring to fig. 1 to 3, fig. 1 is a schematic diagram of a transfer roller according to an embodiment of the present invention, fig. 2 is a schematic diagram of a repair set according to an embodiment of the present invention, and fig. 3 is a block schematic diagram of a repair apparatus for a transfer roller according to an embodiment of the present invention.

The present embodiment provides a transfer roller repairing apparatus 1 for repairing a defective region 221, which is recessed and generated by a grain pattern layer 22 of an outer edge of a transfer roller 2 (i.e., an outer surface of a roller body 21 of the transfer roller 2). The repairing apparatus 1 for the transfer roller comprises a repairing set 11 for the transfer roller (hereinafter referred to as repairing set 11), an aligning mechanism 12 corresponding to the repairing set 11, a heater 13 electrically coupled to the repairing set 11, and a displacement mechanism 14 connected to the repairing set 11.

Referring to fig. 4 and 5, fig. 4 is an enlarged view of a region IV in fig. 1, and fig. 5 is an enlarged view of a region V in fig. 1. It is previously stated that when the transfer roller 2 is used to produce a finished product, the surface of the finished product is provided with a pattern corresponding to the grain pattern layer 22 by embossing the grain pattern layer 22. Since the defect area 221 is concave, the defect area 221 may correspond to a pattern on the surface of the product, which is only partially patterned or even not patterned. In contrast, the grain pattern layer 22 of the transfer roller 2 may define a normal region 222, and no recess such as the defect region 221 exists in the normal region 222. In addition, the transfer roller 2 referred to herein has not been repaired.

After the defect area is repaired by the repair device 1 or the repair group 11 of the transfer roller provided by the embodiment, a finished product is produced by the repaired transfer roller 2, and the problem that only part of the pattern or even no pattern is on the surface of the finished product can be improved. In the present embodiment, the size of the defect region 221 (i.e., the length of the defect region 221 in the radial direction thereof) is not less than 10 μm, but the present invention is not limited thereto.

The repair assembly 11 includes a repair mold 111 and a stop frame 112, and the stop frame 112 is disposed around the repair mold 111. It should be noted that, in the present embodiment, the repairing mold 111 and the stopping frame 112 are defined as the repairing set 11 together, but the invention is not limited thereto. The repair group 11 of the repair apparatus 1 for a transfer roller can be used to repair the defective region 221 in a concave shape. In addition, although the embodiment is described with the repairing set 11 and the aligning mechanism 12, the invention is not limited thereto. For example, in other embodiments not shown, the repair set may be used (e.g., sold) separately or in combination with other components.

The repair mold 111 of repair set 11 is formed with a contoured surface 1111 and the contoured surface 1111 is contoured to complement portions of the textured layer 22. In the present embodiment, the configuration surface 1111 is a sine wave surface, and any two adjacent peaks of the sine wave surface are separated by a distance D1 between 0.9 micrometers (μm) and 1.1 micrometers, but the invention is not limited thereto.

That is, when the configuration surface 1111 is the sine wave surface, a wavelength of the sine wave surface is between 0.9 micrometers and 1.1 micrometers, and preferably, the interval D1 (or the wavelength) between any two adjacent peaks of the sine wave surface is 1 micrometer, but the present invention is not limited thereto. It should be noted that the shape of the configuration surface 1111 may be changed according to the requirement, and is not limited to the sine wave surface.

In this embodiment, the contoured surface 1111 of the repair mold 111 is the sinusoidal surface and the textured layer 22 corresponds to the same sinusoidal surface. Thus, the repair mold 111 may repair the textured layer 22 with the sinusoidal surface being the same sinusoidal surface. In addition, in the present embodiment, the repair mold 111 may be made of polytetrafluoroethylene, and the heat-resistant temperature of the repair mold 111 may be up to 300 ℃ or more, but the present invention is not limited thereto.

The stop frame 112 is disposed around the repair mold 111, and a front edge 1121 of the stop frame 112 protrudes out of the contoured surface 1111. In this embodiment, the leading edge 1121 of the stop frame 112 protrudes beyond the contoured surface 1111 a distance that is no greater than twice the amplitude of the sinusoidal wave surface.

The alignment mechanism 12 can be used to align the contoured surface 1111 of the repair mold 111 with the defective region 221 of the transfer roller 2. Specifically, since the normal region 222 exhibits a different color level than the defect region 221 when the alignment mechanism 12 is used to inspect the textured layer 22, the alignment mechanism 12 can detect the defect region 221 generated by the textured layer 22, and the textured surface 1111 of the repair mold 111 can be aligned with the defect region 221.

For example, the alignment mechanism 12 may be a Charge Coupled Device (CCD), and the color level may be a gray level or a color level, but the invention is not limited thereto. In short, the alignment mechanism 12 can rapidly detect the defect region 221 through an Automated Optical Inspection (AOI) technique, so that the contoured surface 1111 of the repair mold 111 can be aligned with the defect region 221. It should be noted that, in the present embodiment, the alignment mechanism 12 is mainly used to align the contoured surface 1111 of the repair mold 111 with the defect region 221 of the transfer roller 2, and the position of detecting the defect region 221 on the transfer roller 2 is not limited to passing through the alignment mechanism 12.

The heater 13 is electrically coupled to the repair mold 111 of the repair set 11, and the heater 13 can be used to heat the repair mold 111 to below 300 ℃. If the heater 13 heats the repair mold 111 to a temperature exceeding 300 ℃, it is not beneficial for the repair group 11 to repair the defect area 221.

The displacement mechanism 14 is connected to at least one of the repair mold 111 and the stop frame 112 of the repair set 11, and the displacement mechanism 14 can be used to move the repair mold 111 and the stop frame 112. In detail, the displacement mechanism 14 may be a robot arm, one end of the robot arm may clamp at least one of the repair mold 111 and the stop frame 112, and the other end of the robot arm may be connected to the alignment mechanism 12, but the invention is not limited thereto. Therefore, after the alignment mechanism 12 detects the defective region 221, the displacement mechanism 14 (or the robot arm) can move the repair group 11 to a position corresponding to the defective region 221 so that the repair group 11 can repair the defective region 221.

[ method for repairing transfer type roller ]

Referring to fig. 6 to 10, fig. 6 is a schematic diagram illustrating a pre-step of a repairing method of a transfer roller according to an embodiment of the present invention, fig. 7 is a schematic diagram illustrating a material placing step of the repairing method of the transfer roller according to an embodiment of the present invention, fig. 8 is a schematic diagram illustrating a forming step of the repairing method of the transfer roller according to an embodiment of the present invention, fig. 9 is a schematic diagram illustrating a forming step of the repairing method of the transfer roller according to an embodiment of the present invention, and fig. 10 is a schematic diagram illustrating a separating step of the repairing method of the transfer roller according to an embodiment of the present invention.

The embodiment also discloses a method for repairing the transfer printing type roller. The method for repairing the transfer printing type roller comprises a preposing step, a material placing step and a forming step. However, the repairing apparatus 1 and the repairing group 11 of the transfer roller according to the embodiment may be implemented by the repairing method, but the present invention is not limited thereto. Moreover, when the method for repairing the transfer printing roller is implemented, the contents and the sequence of the steps are not limited.

In the pre-step, a transfer printing roller 2 and a repair mold 111 are provided; wherein, a grain pattern layer 22 is formed on the outer edge of the transfer printing roller 2, and the grain pattern layer 22 has a concave defect region 221; the repair mold 111 is formed with a contoured surface 1111 shaped to complement a portion of the textured layer 22.

In the material placing step, a repair material 3 is disposed in the defect region 221, and can be used to produce a eutectic reaction with the grain pattern layer 22.

In the eutectic reaction between the repair material 3 and the textured layer 22 of the present embodiment, an Interfacial Metal Compound (IMC) is generated. In addition, the texture pattern layer 22 may include nickel metal, the repair material 3 may include tin metal, and the interface metal co-compound may be a tin-nickel inter-metal (Ni)₃Sn₄) However, the present invention is not limited thereto.

In the forming step, the transfer roller 2 is heated to soften the repair material 3 and press the contoured surface 1111 of the repair mold 111 against the repair material 3 to form a repair structure 23 in the defect region 221 to fill the textured layer 22 with the repair material 3.

In the forming step of the present embodiment, the temperature of the transfer roller 2 is not higher than 260 ℃, and the eutectic reaction is generated between the repair material 3 and the grain pattern layer 22 by the heating of the transfer roller 2. The outer edge of the repair structure 23 and the outer edge of the grain pattern layer 22 are aligned with each other and form a regular pattern 24 together. The regular pattern 24 is a sine wave shaped surface, and any two adjacent peaks of the sine wave shaped surface are separated by a distance D1 between 0.9 micrometers (μm) and 1.1 micrometers.

In addition, the method for repairing a transfer roller according to this embodiment may further include a separating step after the forming step. In the separation step, the transfer roller 2a is separated from the contoured surface 1111 of the repair mold 111. Note that the transfer roller 2a is repaired. Since the repair mold 111 in this embodiment is made of teflon, the transfer roller 2 and the repair mold 111 can be smoothly separated.

[ transfer type roller ]

Referring to fig. 11 and 12, fig. 11 is a schematic view of a transfer roller according to an embodiment of the invention, and fig. 12 is an enlarged schematic view of a region XII in fig. 11. The embodiment also discloses a transfer roller 2a, and the transfer roller 2a can be obtained by implementing the transfer roller repairing method by using the transfer roller repairing device 1 or the repairing group 11, but the invention is not limited to this.

The transfer roller 2a includes a cylindrical roller body 21, the grain pattern layer 22 formed on the outer surface of the roller body 21, and the repair structure 23 filled in the grain pattern layer 22. The grain pattern layer 22 has the defect region 221 (shown in fig. 5) in a concave shape. The repair structure 23 is filled in the defect region 221 and connected to the grain pattern layer 22 without a gap, and an outer edge of the repair structure 23 and an outer edge of the grain pattern layer 22 are aligned with each other and together form the regular pattern 24.

In this embodiment, the texture pattern layer 22 comprises nickel metal, and the repair structure 23 comprises tin-nickel intermetallic (Ni)₃Sn₄) That is, the material of the repairing structure 23 is different from the material of the grain pattern layer 22. In addition, in the present embodiment, the regular pattern 24 is a sine wave surface, and any two adjacent peaks of the sine wave surface are separated by the interval between 0.9 micrometers (μm) and 1.1 micrometersD1。

[ advantageous effects of embodiments of the present invention ]

One of the benefits of the invention is that the repair method of the transfer roller and the transfer roller provided by the invention can repair the surface of the existing transfer roller without replacing the whole existing transfer roller by the technical scheme of arranging a repair material in the defect area, wherein the repair material can be used for generating eutectic reaction with the grain pattern layer, and heating the transfer roller to soften the repair material, and pressing the configuration surface of the repair mold on the repair material to enable the repair material to form a repair structure for repairing the grain pattern layer in the defect area.

The disclosure is only a preferred embodiment of the invention and is not intended to limit the scope of the invention, so that all equivalent technical changes made by using the contents of the specification and drawings are included in the scope of the invention.