A method for bevel cutting a film material

Abstract

This invention discloses a method for beveling a film material. First, a first upper protective layer is used to replace a second upper protective layer adhered to the upper surface of the use layer to form a semi-finished product. The hardness and thickness of the second upper protective layer are both less than those of the first upper protective layer; the hardness of the second upper protective layer is less than half that of the use layer, and the thickness of the second upper protective layer is less than one-third that of the use layer. Then, the semi-finished product is beveled to form a bevel at the edge of the use layer, with an arc-shaped angle at the end of the bevel near the first upper protective layer. Next, the first upper protective layer is used to replace the second upper protective layer in the semi-finished product to reform the film material. Because an arc-shaped angle is formed at the end of the bevel near the first upper protective layer, after the use layer is adhered to the display screen surface, the arc-shaped angle reduces the roughness of the use layer edge, thereby reducing the probability of the use layer cutting the user's hand.

Description

Technical Field

[0001] This invention relates to the field of membrane processing technology, and in particular to a method for oblique cutting of membrane materials. Background Technology

[0002] For some electronic products with displays, a film is often needed to be laminated onto the surface of the display to protect it. After the film is laminated onto the surface of the display, the edges of the film have relatively sharp corners, which can easily cause scratches to users.

[0003] In related technologies, in order to reduce the probability of injury to users from the edges and corners of the membrane material, the membrane material is generally cut at an angle by a cutting tool during die-cutting to form a bevel at the edge of the membrane material, thereby increasing the angle of the edge and corner of the membrane material and thus reducing the injury to users from the edge and corner of the membrane material.

[0004] Although the edges of the membrane are beveled, the corners of the membrane edges can still cause injury to users. Summary of the Invention

[0005] The purpose of this invention is to at least solve one of the technical problems existing in the prior art. This invention provides a method for beveling membrane materials. Membrane materials manufactured using the beveling method of this invention can further reduce the damage caused to users by the edges of the membrane materials.

[0006] According to an embodiment of the present invention, a method for obliquely cutting a membrane material is provided, wherein the membrane material includes a service layer and a first upper protective layer, the first upper protective layer being adhered to the upper surface of the service layer; the method for obliquely cutting a membrane material includes the following steps:

[0007] A semi-finished product is formed by replacing the second upper protective layer that is attached to the upper surface of the use layer with the first upper protective layer. The hardness and thickness of the second upper protective layer are both less than those of the first upper protective layer, and the hardness of the second upper protective layer is less than half that of the use layer, and the thickness of the second upper protective layer is less than one-third that of the use layer.

[0008] The semi-finished product is beveled to form a bevel at the edge of the working layer, and an arc angle is formed at the end of the bevel near the first upper protective layer;

[0009] The second upper protective layer in the semi-finished product is replaced with the first upper protective layer to reform the membrane material.

[0010] The film material beveling method described in this invention has at least the following beneficial effects: In the film material beveling method of this application, the second upper protective layer adhered to the upper surface of the use layer is first replaced with a first upper protective layer to form a semi-finished product. The hardness and thickness of the second upper protective layer are both less than those of the first upper protective layer, and the hardness of the second upper protective layer is less than half that of the use layer, and the thickness of the second upper protective layer is less than one-third that of the use layer. Then, the semi-finished product is beveled to form a bevel at the edge of the use layer, and an arc-shaped angle is formed at the end of the bevel near the first upper protective layer. Next, the second upper protective layer in the semi-finished product is replaced with the first upper protective layer to reform the film material. Because an arc-shaped angle is formed at the end of the bevel near the first upper protective layer, after the use layer is adhered to the display screen surface, the arc-shaped angle can reduce the roughness of the use layer edge, thereby reducing the probability of the use layer cutting the user's hand.

[0011] According to the membrane oblique cutting method of the present invention, the thickness of the first upper protective layer is greater than 75 μm.

[0012] According to the membrane oblique cutting method of the present invention, the thickness of the layer is 115 μm, the thickness of the first upper protective layer is 85 μm, and the thickness of the second upper protective layer is 30 μm.

[0013] According to the membrane material oblique cutting method described in the embodiments of the present invention, the hardness of the first upper protective layer is greater than three-half of the hardness of the working layer.

[0014] According to the membrane material oblique cutting method of the present invention, the Rockwell hardness of the first upper protective layer is 120, the Rockwell hardness of the second upper protective layer is 250, and the Rockwell hardness of the third upper protective layer is 50.

[0015] According to the method for oblique cutting of membrane material according to an embodiment of the present invention, oblique cutting of semi-finished product includes the following steps:

[0016] Lay the edges of the semi-finished product flat on a sloped surface with a preset angle;

[0017] The drive tool moves downward and cuts the semi-finished product located on the bevel to form a bevel at the edge of the working layer.

[0018] The membrane oblique cutting method according to an embodiment of the present invention, which replaces the second upper protective layer adhered to the upper surface of the use layer with a first upper protective layer, includes the following steps:

[0019] Peel off the second upper protective layer that is attached to the upper surface of the working layer;

[0020] The first upper protective layer is re-attached to the upper surface of the use layer to reform the membrane material;

[0021] The first upper protective layer is cut to align the edges of the first upper protective layer and the edge of the use layer in the vertical direction.

[0022] The membrane oblique cutting method according to an embodiment of the present invention, which replaces the second upper protective layer adhered to the upper surface of the use layer with a first upper protective layer, includes the following steps:

[0023] Peel off the first upper protective layer that is attached to the upper surface of the working layer;

[0024] The second upper protective layer is attached to the upper surface of the use layer.

[0025] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0027] Figure 1 This is a flowchart of a membrane oblique cutting method according to an embodiment of the present invention;

[0028] Figure 2 This is a flowchart of a process for obliquely cutting a semi-finished product according to an embodiment of the present invention;

[0029] Figure 3 This is a flowchart illustrating an embodiment of the present invention where a first upper protective layer replaces a second upper protective layer adhered to the upper surface of a use layer.

[0030] Figure 4 This is a flowchart illustrating an embodiment of the present invention where a first upper protective layer replaces a second upper protective layer adhered to the upper surface of a use layer.

[0031] Figure 5 This is a schematic diagram of the membrane material before and after oblique cutting in the prior art; Figure 5 a is a schematic diagram of the membrane material before it is obliquely cut; Figure 5 b is a schematic diagram of the structure of the membrane material after oblique cutting;

[0032] Figure 6 This is a schematic diagram of the structure of a semi-finished product before and after oblique cutting, according to an embodiment of the present invention; Figure 6 a is a schematic diagram of the structure of the semi-finished product before oblique cutting; Figure 6 b is a schematic diagram of the structure of the semi-finished product after oblique cutting.

[0033] Figure label:

[0034] Use layer 100; bevel 110; arc angle 111; first upper protective layer 200; arc surface 210; second upper protective layer 300; lower protective layer 400. Detailed Implementation

[0035] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0036] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0037] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0038] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0039] The following is for reference. Figures 1 to 6 The method for oblique cutting of membrane material according to the present invention will be described in detail.

[0040] refer to Figure 5 The film material includes a first upper protective layer 200, a use layer 100, and a lower protective layer 400. The first upper protective layer 200 and the lower protective layer 400 are respectively attached to the upper and lower surfaces of the use layer 100. The first upper protective layer 200 and the lower protective layer 400 are used to protect the use layer 100 during processing and transportation. When using the film material, the user needs to peel off the first upper protective layer 200 and the lower protective layer 400 in the film material, and then attach the use layer 100 to the surface of the display screen.

[0041] It should be noted that because the upper surface of the use layer 100 has sharp edges, when the user's hand slides along the edge of the display screen after the use layer 100 is attached to the display screen, the sharp edges on the use layer 100 may cut the user's hand, thus causing cuts to the user.

[0042] In some cases, when processing the membrane material, it is beveled to form a bevel 110 at the edge of the use layer 100. In this case, the corner of the upper surface edge of the use layer 100 is an obtuse angle. Although the obtuse angle makes it difficult to cut the user's hand, there is still a risk of cutting the user's hand.

[0043] Based on the above reasons, refer to Figure 1 According to some embodiments of the present invention, the method for oblique cutting of membrane material includes, but is not limited to, the following steps:

[0044] Step S100: Replace the second upper protective layer 300 that is attached to the upper surface of the use layer 100 with the first upper protective layer 200 to form a semi-finished product. The hardness and thickness of the second upper protective layer 300 are both less than those of the first upper protective layer 200, and the hardness of the second upper protective layer 300 is less than half that of the use layer 100, and the thickness of the second upper protective layer 300 is less than one-third that of the use layer 100.

[0045] Step S200: The semi-finished product is beveled to form a bevel 110 at the edge of the working layer 100, and an arc angle 111 is formed at the end of the bevel 110 near the first upper protective layer 200.

[0046] Step S300: Replace the second upper protective layer 300 in the semi-finished product with the first upper protective layer 200 to reform the membrane material.

[0047] refer to Figure 5 When the membrane material is directly cut at an angle, the first upper protective layer 200 is harder and thicker than the second upper protective layer 300, making it more difficult to cut through. During the cutting process, the first upper protective layer 200 will compress the use layer 100 under the pressure of the cutter, causing the use layer 100 to undergo elastic compression. In addition to the movement of the cutter itself, the elastic compression of the use layer 100 will also cause the position of the first upper protective layer 200 to change, resulting in a curved surface 210 formed by the cutter on the first upper protective layer 200. After the cutter cuts through the first upper protective layer 200, the use layer 100 is already in a compressed state, resulting in a slanted plane formed by the cutter on the use layer 100. At this time, a sharp edge will be formed at the edge of the use layer 100, which can easily scratch the user's skin.

[0048] refer to Figure 6When cutting the membrane material using the oblique cutting method of this embodiment, the second upper protective layer 300 is replaced with the first upper protective layer 200 adhered to the upper surface of the use layer 100. Since the hardness and thickness of the second upper protective layer 300 are both less than those of the first upper protective layer 200, and the hardness of the second upper protective layer 300 is less than half that of the use layer 100, and the thickness of the second upper protective layer 300 is less than one-third that of the use layer 100, the second upper protective layer can be cut through more easily. During the process of the blade cutting through the second upper protective layer 300, under the pressure of the blade, the second upper protective layer will compress the use layer 100, causing the use layer 100 to undergo elastic compression. The second upper protective layer 300 is easier to cut through than the first upper protective layer 200. After the second upper protective layer 300 is cut through, the working layer 100 has not yet reached its compression limit. When the tool cuts the working layer 100, the working layer 100 will continue to undergo elastic compression. In this process, in addition to the movement of the tool itself, the position of the working layer 100 will also change due to the elastic compression. As a result, the cutting surface formed by the tool on the working layer 100 is an arc surface 210. An arc-shaped arc angle 111 will be formed at the upper edge of the working layer 100, which further increases the difficulty for the working layer 100 to cut the user's skin.

[0049] Specifically, in some embodiments of the present invention, reference is made to... Figure 2 Step S200 includes, but is not limited to, the following steps:

[0050] Step S210: Lay the edge of the semi-finished product flat on the inclined surface with a preset tilt angle;

[0051] Step S220: Drive the cutter downward and cut the semi-finished product located on the inclined surface to form a bevel 110 at the edge of the working layer 100.

[0052] Understandably, since the edge of the semi-finished product is laid flat on a slope with a preset tilt angle, after the tool cuts the semi-finished product, the beveled edge 110 of the working layer 100 also has a preset tilt angle. Therefore, by adjusting the tilt angle of the slope, the operator can control the tilt angle of the beveled edge 110 of the working layer 100 after cutting.

[0053] In some embodiments of the present invention, reference is made to Figure 3 Step S300 includes, but is not limited to, the following steps:

[0054] S310, Peel off the second upper protective layer 300 that is attached to the upper surface of the use layer 100;

[0055] S320: Reattach the first upper protective layer 200 to the upper surface of the use layer 100 to reform the membrane material;

[0056] S330. Cut the first upper protective layer 200 so that the edge of the first upper protective layer 200 and the edge of the use layer 100 are aligned in the vertical direction.

[0057] It should be noted that, due to the relatively low thickness and hardness of the second upper protective layer 300, it is difficult for the second upper protective layer 300 to provide sufficient strength to support the use layer 100. During the transportation of semi-finished products, the use layer 100 and the second upper protective layer 300 are prone to bending or even folding, which affects the subsequent use of the use layer 100. On the other hand, the first upper protective layer 200 has a relatively high thickness and hardness. During the transportation and storage of the membrane material, the first upper protective layer 200 can effectively protect the use layer 100 to prevent the use layer 100 from bending or folding under the action of external forces.

[0058] It is understandable that, since the use layer 100 is beveled in step 200, the size of the use layer 100 becomes smaller. The first upper protective layer 200 is difficult to fit the beveled use layer 100 perfectly. Therefore, after the first upper protective layer 200 is attached to the upper surface of the beveled use layer 100, the first upper protective layer 200 needs to be over-cut so that the first upper protective layer 200 can fit the beveled use layer 100 perfectly in size.

[0059] Furthermore, in some embodiments of the present invention, in order to make the first upper protective layer 200 have sufficient strength, the thickness of the first upper protective layer 200 is greater than 75 μm.

[0060] In one specific embodiment of the present invention, the thickness of layer 100 is 115 μm, the thickness of the first upper protective layer 200 is 85 μm, and the thickness of the second upper protective layer 300 is 30 μm.

[0061] Furthermore, in some embodiments of the present invention, in order to make the first upper protective layer 200 have sufficient strength, the hardness of the first upper protective layer 200 is greater than three-half of the hardness of the use layer 100.

[0062] In a specific embodiment of the present invention, the Rockwell hardness of layer 100 is 120, the Rockwell hardness of the first upper protective layer 200 is 250, and the Rockwell hardness of the second upper protective layer 300 is 50.

[0063] In some embodiments of the present invention, reference is made to Figure 4 Step S100 includes, but is not limited to, the following steps:

[0064] Step S110: Peel off the first upper protective layer 200 that is attached to the upper surface of the use layer 100;

[0065] Step S120: Attach the second upper protective layer 300 to the upper surface of the use layer 100.

[0066] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A method for oblique cutting of membrane material, characterized in that, The membrane material includes a service layer and a first upper protective layer, the first upper protective layer being adhered to the upper surface of the service layer, and the membrane material oblique cutting method includes the following steps: A second upper protective layer is used to replace the first upper protective layer that is adhered to the upper surface of the use layer to form a semi-finished product, wherein the thickness of the use layer is 115 μm, the thickness of the first upper protective layer is 85 μm, the thickness of the second upper protective layer is 30 μm, the Rockwell hardness of the use layer is 120, the Rockwell hardness of the first upper protective layer is 250, and the Rockwell hardness of the second upper protective layer is 50. The semi-finished product is beveled to form a bevel at the edge of the working layer, and an arc angle is formed at the end of the bevel near the first upper protective layer; The second upper protective layer, which is adhered to the upper surface of the use layer, is replaced with the first upper protective layer to reform the membrane material.

2. The method for oblique cutting of membrane material according to claim 1, characterized in that, The oblique cutting of the semi-finished product includes the following steps: Lay the edge of the semi-finished product flat on an inclined surface with a preset tilt angle; The drive tool moves downward and cuts the semi-finished product located on the inclined surface to form a bevel at the edge of the working layer.

3. The method for oblique cutting of membrane material according to claim 1, characterized in that, The process of replacing the second upper protective layer adhered to the upper surface of the use layer with the first upper protective layer includes the following steps: Peel off the second upper protective layer that is attached to the upper surface of the use layer; The first upper protective layer is reattached to the upper surface of the use layer to reform the film material; The first upper protective layer is cut to align the edges of the first upper protective layer and the edge of the use layer in the vertical direction.

4. The method for oblique cutting of membrane material according to claim 1, characterized in that, Replacing the second upper protective layer, which is adhered to the upper surface of the use layer, with a first upper protective layer includes the following steps: Peel off the first upper protective layer that is attached to the upper surface of the use layer; The second upper protective layer is attached to the upper surface of the use layer.

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