Screen protection film cutting tool

Abstract

The utility model discloses a screen protective film cutting tool which comprises a tool handle and a tool bar installed at one end of the tool handle, a single-face tool point with a single cutting face is formed at one end of the tool bar, the cutting edge angle of the single-face tool point ranges from 45 degrees to 50 degrees, the single-face tool point is provided with a flat cutting face which is arranged in a downwards-inclined mode, and the flat cutting face is provided with a flat cutting face. And a wear-resistant coating is arranged on the surface of the flat cutting surface. The problems that when a cutter cuts a high-hardness protective film, a cutter head is broken and abraded are solved.

Description

Technical Field

[0001] This utility model relates to the field of film cutting technology, and in particular to a screen protector film cutting tool. Background Technology

[0002] Existing screen protector cutting tools face numerous problems when cutting high-hardness materials, such as easy wear, breakage, and chipping of the blade, edge warping leading to safety hazards and short tool life. Therefore, a new type of cutting tool is urgently needed to improve its cutting performance and durability to meet the requirements of processing high-hardness materials. Utility Model Content

[0003] To address the shortcomings of the existing technology, this utility model provides a screen protector cutting tool to solve problems such as tool tip breakage and wear when cutting high-hardness protective films.

[0004] This utility model is achieved using the following technical solution:

[0005] A screen protector cutting tool includes a handle and a blade rod installed at one end of the handle. One end of the blade rod has a single-sided blade edge with a single cutting surface. The blade angle of the single-sided blade edge is 45-50°. The single-sided blade edge has a flat cutting surface that is inclined downwards. The surface of the flat cutting surface is provided with a wear-resistant coating.

[0006] Furthermore, the inclination angle of the flat cut surface is 25-30°.

[0007] Furthermore, the length of the single-sided blade is 1.5-3mm.

[0008] Furthermore, the wear-resistant coating is made of titanium nitride or aluminum titanium nitride.

[0009] Furthermore, the thickness of the wear-resistant coating is 0.6μ-1μ.

[0010] Furthermore, the cross-sectional shape of the flat cut surface is prismatic.

[0011] Furthermore, the single-sided blade is covered with a hardened layer, and the wear-resistant coating is disposed on the upper surface of the hardened layer.

[0012] Furthermore, the thickness of the hardened layer is the same as the thickness of the wear-resistant coating.

[0013] Furthermore, the tool holder and the tool shank are detachably connected.

[0014] Furthermore, the handle is provided with anti-slip texture.

[0015] Compared with the prior art, the beneficial effects of this utility model include at least the following:

[0016] This invention employs a single-edged blade design with a cutting angle of 45-50°. This single-edged blade has a large cutting angle, providing a sharper cutting effect. The back of the single-edged blade has no blade curvature, avoiding unnecessary cutting interference and improving stability during the cutting process. The single-edged blade design allows for a sharper cutting tip and better cutting results. By setting a flat cutting surface, the cutting contact area is increased, resulting in greater pressure under force and sharper cutting of diaphragms, with more stable cutting of high-hardness diaphragm edges. The wear-resistant coating on the beveled cutting surface significantly improves the surface wear resistance of the tool, ensuring effectiveness during the cutting process and the durability of the tool, thus reducing the occurrence of blade breakage and wear. Attached Figure Description

[0017] Figure 1 This is one of the schematic diagrams of a screen protector cutting tool according to an embodiment of the present utility model;

[0018] Figure 2 This is a second schematic diagram of the screen protector cutting tool according to an embodiment of this utility model;

[0019] In the diagram: 1. Handle; 2. Blade shaft; 3. Single-sided blade; 31. Flat cutting surface; 32. Wear-resistant coating. Detailed Implementation

[0020] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.

[0021] The terms used to describe position and direction in this utility model are illustrated with the accompanying drawings, but changes can be made as needed, and all such changes are included within the scope of protection of this utility model.

[0022] like Figure 1 and Figure 2 As shown, this utility model provides a screen protector cutting tool, including a handle 1 and a blade 2 installed at one end of the handle 1. One end of the blade 2 has a single-sided blade with a single cutting surface. The blade angle of the single-sided blade 3 is 45-50°. The single-sided blade 3 has a flat cutting surface 31 that is inclined downwards. The surface of the flat cutting surface 31 is provided with a wear-resistant coating 32.

[0023] In this embodiment, a single-sided blade 3 is used, and the cutting angle of the single-sided blade 3 is 45-50°, such as Figure 1 The β shown represents the cutting edge angle. This single-sided blade 3 has a larger cutting edge angle, providing a sharper cutting effect. The back of the single-sided blade 3 has no blade curvature, avoiding unnecessary cutting interference and improving stability during the cutting process. Compared to commercially available knives, which are mainly double-sided blades with relatively uniform blades and smaller curvature, allowing for more even cutting of films, but lacking sufficient sharpness, this single-sided blade 3 design provides a sharper tip and better cutting results. The flat cutting surface 31 increases the contact area, resulting in greater pressure and sharper cutting of films, and more stable cutting of high-hardness film edges. The wear-resistant coating 32 on the beveled cutting surface significantly improves the surface wear resistance of the tool, ensuring effectiveness and durability during cutting.

[0024] The cutting tool of this utility model has significantly improved the sharpness of the blade by optimizing and improving the blade structure, resulting in higher cutting efficiency, enhanced hardness and wear resistance, and extended service life, while reducing the occurrence of breakage and wear. The tool is reasonably designed, has strong stability during the cutting process, and reduces safety hazards caused by tool defects.

[0025] In a preferred embodiment, the inclination angle of the flat cut surface 31 is 25-30°.

[0026] In this embodiment, since the tilt angle of the flat cutting surface 31 also affects the cutting effect, after repeated experiments, the tilt angle range of the flat cutting surface 31 is 25-30°, which makes the operation more convenient and the cutting effect better.

[0027] In a preferred embodiment, the length of the single-sided blade 3 is 1.5-3mm.

[0028] In this embodiment, since the blade length also affects the cutting effect, after repeated experiments, the length range of the single-sided blade 3 is 1.5-3mm. Figure 1 L in the figure represents the length of the single-sided blade (3), which has a relatively good cutting effect.

[0029] In a preferred embodiment, the wear-resistant coating 32 is made of titanium nitride or aluminum titanium nitride.

[0030] In this embodiment, a titanium nitride coating or an aluminum titanium nitride coating can be deposited on the flat cutting surface 31 using PVD (physical vapor deposition) technology. Because titanium nitride or aluminum titanium nitride has high wear resistance, the deposited titanium nitride or aluminum titanium nitride coating exhibits high wear resistance. Through repeated experiments, by setting the wear-resistant coating 32 of titanium nitride or aluminum titanium nitride, the cutting diaphragm can achieve good cutting results and significantly reduce tool wear, thereby effectively maintaining the sharpness of the cutting edge and greatly improving the tool's service life. Of course, in other embodiments, the wear-resistant coating 32 can also be made of other materials with good wear resistance.

[0031] In a preferred embodiment, the thickness of the wear-resistant coating 32 is 0.6 μm to 1 μm. This thickness of wear-resistant coating 32 provides superior wear resistance.

[0032] In a preferred embodiment, the cross-sectional shape of the flat cut surface 31 is prismatic.

[0033] In this embodiment, the prismatic cutting surface has a larger area, resulting in a larger contact area during cutting, greater pressure under stress, and a sharper cutting edge when cutting diaphragms, making the cutting of high-hardness diaphragm edges more stable. The prismatic shape is not limited to a quadrangular shape; it can also be a pentagonal shape or other prismatic shapes.

[0034] In a preferred embodiment, the single-sided blade 3 is covered with a hardened layer, and the wear-resistant coating 32 is disposed on the upper surface of the hardened layer.

[0035] In this embodiment, before the single-sided cutting edge 3 is hardened, the cutting edge is first heat-treated. The heat treatment increases the hardness of the tool material by controlling the heating and cooling rates. Then, a hardened layer is applied to the single-sided cutting edge 3 to increase the hardness of the tool. After that, a wear-resistant coating 32 is deposited on the hardened layer to improve the wear resistance of the tool.

[0036] In a preferred embodiment, the thickness of the hardened layer is the same as the thickness of the wear-resistant coating 32. This further enhances the hardness and wear resistance of the cutting tool.

[0037] In a preferred embodiment, the blade holder 2 and the handle 1 are detachably connected. This allows for the replacement of blades with different specifications.

[0038] In a preferred embodiment, the handle 1 is provided with anti-slip texture. This makes it less likely for the handle 1 to slip when held, and also helps to stabilize the cutting of the diaphragm.

[0039] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention, and all such changes should fall within the protection scope of the claims of the present invention.

Claims

1. A screen protector cutting tool, characterized in that, The tool includes a handle (1) and a shank (2) mounted on one end of the handle (1). One end of the shank (2) has a single-sided blade (3) with a single cutting surface. The blade angle of the single-sided blade (3) is 45-50°. The single-sided blade (3) has a flat cutting surface (31) that is inclined downward. The surface of the flat cutting surface (31) is provided with a wear-resistant coating (32). The inclination angle of the flat cutting surface (31) is 25-30°. The single-sided blade (3) is covered with a hardened layer. The wear-resistant coating (32) is disposed on the upper surface of the hardened layer.

2. The screen protector cutting tool according to claim 1, characterized in that, The length of the single-sided blade (3) is 1.5-3mm.

3. The screen protector cutting tool according to claim 1, characterized in that, The wear-resistant coating (32) is made of titanium nitride or aluminum titanium nitride.

4. The screen protector cutting tool according to claim 1, characterized in that, The thickness of the wear-resistant coating (32) is 0.6μ-1μ.

5. The screen protector cutting tool according to claim 1, characterized in that, The cross-sectional shape of the flat cut surface (31) is prismatic.

6. The screen protector cutting tool according to claim 1, characterized in that, The thickness of the hardened layer is the same as the thickness of the wear-resistant coating (32).

7. The screen protector cutting tool according to claim 1, characterized in that, The tool holder (2) and the tool handle (1) are detachably connected.

8. The screen protector cutting tool according to claim 1, characterized in that, The handle (1) is provided with anti-slip texture.

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