Screen protection sticker customization system and film cutting tool

Abstract

The invention discloses a screen protector customization system and a film cutting tool. The film cutting tool can be used for cutting a size film with the hardness of at least 5H, and a transverse reference surface perpendicular to the long axis direction of the film cutting tool and a longitudinal reference surface perpendicular to the transverse reference surface are defined. The film cutting tool comprises a supporting section and a cutting section connected to the supporting section. The cutting section is provided with a first side face, a second side face spaced from the first side face, a primary blade face connected to the first side face and a primary blade face connected to the second side face and the secondary blade face. The main blade face and the secondary blade face are connected to form a main blade, and the main blade is located on the longitudinal datum plane. An oblique angle ranging from 1 degree to 3 degrees is formed between the first side face and the longitudinal reference face. Therefore, according to the film cutting tool, the cutting section has specific conditions, so that a film with the hardness of at least 5H can be cut.

Description

TECHNICAL FIELD

[0001] The present application relates to a protection sticker system and a cutter, in particular to a screen protection sticker customization system and a film cutting cutter, which is suitable for cutting a film with a hardness of at least 5H. BACKGROUND

[0002] The existing film cutting cutter is only suitable for cutting a soft film with a hardness less than 3H to form an external shape conforming to various mobile phones. However, it is difficult to form a screen protection sticker with a hardness of 5H or more to conform to various mobile phones by cutting, so for manufacturers who process mobile phone stickers, they can only stock a variety of external shapes for different mobile phone models for screen protection stickers with a hardness of 5H or more. This not only greatly increases the inventory cost, but also makes it difficult to meet the needs of small mobile phone stickers.

[0003] Therefore, the present application believes that the above-mentioned defects can be improved, and after careful research and application of scientific principles, the present application is finally proposed. SUMMARY

[0004] The purpose of the embodiment of the present application is to provide a screen protection sticker customization system and a film cutting cutter which can effectively improve the defects that may be caused by the existing film cutting cutter.

[0005] The screen protection sticker customization system includes a film cutting device, which comprises a bearing body, a displacement mechanism installed on the bearing body and capable of moving relative to the bearing body, a processing module installed on the bearing body, and a film cutter installed on the displacement mechanism. The processing module is electrically coupled to the displacement mechanism to drive the displacement mechanism to move along a first cutting path and a second cutting path in sequence. The film cutter is defined with a transverse reference surface perpendicular to the long axis direction and a longitudinal reference surface perpendicular to the transverse reference surface. The film cutter comprises a support section and a cutting section connected to the support section. The cutting section has a first side surface, a second side surface spaced from the first side surface, a primary blade surface connected to the first side surface, and a main blade surface connected to the second side surface and the secondary blade surface. The main blade surface and the secondary blade surface are connected to form a main edge, and the main edge is located on the longitudinal reference surface. The first side surface and the longitudinal reference surface form an included angle of 1-3 degrees. The main edge and the transverse reference surface form a first angle of 43-47 degrees. The main edge corresponds to the long axis direction and has a first height of 0.98-1.08 mm. A size film can be cut into a screen protection sticker through a cutting operation of the film cutting device. The size film comprises a use layer with a hardened film and a fitted film formed on the hardened film. The hardened film has a hardness of at least 5H. A buffer layer comprises a first buffer film attached to the hardened film and a second buffer film attached to the first buffer film. The hardness of the hardened film, the first buffer film, and the second buffer film decreases in sequence, and the thickness of the hardened film, the first buffer film, and the second buffer film decreases in sequence. A bottom layer is attached to the fitted film. When the size film is placed in the film cutting device for the cutting operation, the bottom layer of the size film is fixed to the bearing body. The displacement mechanism is driven by the processing module to cut the main edge of the film cutter relative to the buffer layer and the use layer along the first cutting path to form a first profile, and then cut along the second cutting path to form a second profile outside the first profile, which has at least one positioning hole.

[0006] Preferably, the main blade has a tip end distal to the support section and a top end adjacent to the support section, the main blade edge has a bottom edge connected to the tip end and a top edge connected to the top end; wherein the cutting section has a first end surface connected to the first side surface, the second side surface and the bottom edge of the main blade edge to jointly form the tip end, and a second end surface connected to the first side surface, the second side surface and the top edge of the main blade edge to jointly form the top end.

[0007] Preferably, the first end surface forms a sub-blade extending from the tip end, and the sub-blade has a second height corresponding to the long axis direction of 4-6 microns.

[0008] Preferably, the sub-blade is elongated and parallel to the main blade, the width of the sub-blade is between 0.01-0.03 mm, and the area of the main blade edge is at least 5 times the area of the sub-blade.

[0009] Preferably, the bottom edge of the main blade edge has a height corresponding to the long axis direction of 0.73-0.77 mm, the support section defines a center line parallel to the long axis direction, and the distance between the first side surface and the center line is less than the distance between the second side surface and the center line; a second angle of 91-91.5 degrees is formed between the second side surface and the transverse reference surface.

[0010] Preferably, the cutting section is integrally connected to the support section, the film cutting tool includes a mounting section, and the support section is welded to the mounting section.

[0011] Preferably, the size film has an identification code on the buffer layer, the film cutting device further includes a scanner mounted on the carrier body, which is electrically connected to the processing module; wherein the screen saver customization system includes a cloud server electrically connected to the processing module and the scanner; wherein when the size film is fixed on the carrier body, the scanner can scan the identification code to generate a signal, and the cloud server can receive the signal through the processing module to allow the film cutting device to perform the cutting operation.

[0012] Preferably, the thickness of the second buffer film is 75-90% of the thickness of the first buffer film, and the thickness of the first buffer film is 60-75% of the thickness of the hardened film.

[0013] Preferably, the sum of the thickness of the first buffer film and the thickness of the second buffer film is 95% to 105% of the thickness of the conforming film, and the thickness of the hardening film is 75% to 90% of the thickness of the conforming film.

[0014] The cutting film cutter defines a transverse reference plane perpendicular to the direction of the long axis and a longitudinal reference plane perpendicular to the transverse reference plane, and can be used to cut a size film with a hardness of at least 5H; wherein the cutting film cutter comprises: a support section; and a cutting section connected to the support section, and the cutting section has a first side, a second side spaced from the first side, a primary cutting edge surface connected to the first side, and a main cutting edge surface connected to the second side and the secondary cutting edge surface; wherein the main cutting edge surface and the secondary cutting edge surface are connected to form a main edge, and the main edge is located on the longitudinal reference plane; wherein the first side and the longitudinal reference plane are clamped at an oblique angle of 1 degree to 3 degrees, the main edge and the transverse reference plane form a first angle of 43 degrees to 47 degrees, and the main edge corresponds to the long axis direction and has a first height of 0.98 mm to 1.08 mm.

[0015] In summary, the screen protection sticker customization system and the cutting film cutter disclosed by the embodiments of the present application have specific conditions (such as the angle range of the oblique angle, the configuration of the secondary cutting edge surface, the first angle of the main edge being 43 degrees to 47 degrees, and the first height of the main edge being 0.98 mm to 1.08 mm) on the cutting section, so as to facilitate cutting of the size film (or the hardening film) with a hardness of at least 5H.

[0016] For a further understanding of the features and technical contents of the present application, please refer to the following detailed description of the present application and the accompanying drawings, but these descriptions and drawings are only used to illustrate the present application, and do not limit the scope of protection of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A schematic diagram of the screen protection sticker customization system of the embodiments of the present application.

[0018] Figure 2 A perspective view of the cutting film cutter of the embodiments of the present application.

[0019] Figure 3 A Figure 2 A perspective view from another angle.

[0020] Figure 4 A Figure 2 Front view of

[0021] Figure 5 FIG. 1 shows a schematic side view of a screen protector customization system 1000 according to an embodiment of the present disclosure. Figure 2

[0022] Figure 6 FIG. 2 shows a schematic front view of a screen protector customization system 1000 according to an embodiment of the present disclosure. Figure 3

[0023] Figure 7 FIG. 3 shows a schematic enlarged view of a portion VII of a screen protector customization system 1000 according to an embodiment of the present disclosure. Figure 6

[0024] Figure 8 FIG. 4 shows a schematic view of a cutting film tool cutting a size film along a first cutting path according to an embodiment of the present disclosure. Figure 1

[0025] Figure 9 FIG. 5 shows a schematic view of a cutting film tool cutting a size film along a second cutting path according to an embodiment of the present disclosure. Figure 1 DETAILED DESCRIPTION

[0026] The present disclosure will be described with respect to particular embodiments. Those skilled in the art will appreciate that the application is not limited to the embodiments described herein. Those skilled in the art will further appreciate that any feature or combination of features described herein can be used with any one of the embodiments or any combination of embodiments unless specifically stated otherwise. The present disclosure is not limited to the embodiments described herein, but rather the scope of the disclosure is limited only by the claims. The following detailed description includes specific details for the purpose of providing a thorough understanding of the inventive teachings. However, it will be apparent to those skilled in the art that the application can be practiced without these specific details. In some instances, well-known structures and components are shown in block diagram form in order to avoid obscuring the concepts of the application. In this description, all patents and patent applications mentioned herein, including during the background of the disclosure, are hereby incorporated by reference in their entirety.

[0027] It should be understood that, although the terms "first", "second", "third" etc. can be used herein to describe various information or elements, these information or elements should not be limited by these terms. These terms are only used to distinguish one information or element from another. In addition, the term "or" used herein can include any one or more of the associated listed items, as possible.

[0028] Referring to FIG. 1, a screen protector customization system 1000 according to an embodiment of the present disclosure is shown. The screen protector customization system 1000 includes a cutting film device 100, a size film 200 adapted to the cutting film device 100, and a cloud server 300 electrically coupled to the cutting film device 100, but the present disclosure is not limited thereto. For example, in other embodiments not shown in the present disclosure, the screen protector customization system 1000 can omit the cloud server 300 according to actual needs. Figures 1 to 9 It should be understood that, although the terms "first", "second", "third" etc. can be used herein to describe various information or elements, these information or elements should not be limited by these terms. These terms are only used to distinguish one information or element from another. In addition, the term "or" used herein can include any one or more of the associated listed items, as possible.​​​​​

[0029] It should be noted that the screen protector customization system 1000 is preferably applied to a manufacturer processing mobile phone stickers, so as to select the model of the mobile phone and implement cutting operation on the size film 200 by the cutting film equipment 100 to form a corresponding screen protector, so as to achieve the effect of customized cutting film. That is, the cutting film equipment that does not belong to the customized form is different from the screen protector customization system 1000 of the present embodiment.

[0030] Further, the size film 200 in the present embodiment comprises a bottom layer 201, a buffer layer 202 and a use layer 203 clamped between the bottom layer 201 and the buffer layer 202. Among them, the use layer 203 has a hardened film 2031 and a sticker film 2032 on the opposite sides respectively, and the bottom layer 201 is attached to the sticker film 2032 of the use layer 203, and the buffer layer 202 is attached to the hardened film 2031 of the use layer 203. Further, in order to facilitate the size film 200 after cutting without burr and other defects, the size film 200 preferably has at least some of the following features, but not limited to. The sticker film 2032 is formed on the hardened film 2031, and the hardened film 2031 has a hardness of at least 6H. The buffer layer 202 comprises a first buffer film 202a attached to the hardened film 2031 and a second buffer film 202b attached to the first buffer film 202a. In addition, the bottom layer 201 can be a cut-through-resistant plate 201a, or the bottom layer 201 can comprise the plate 201a and a dust removal film 201b connected between the plate 201a and the sticker film 2032, which is not limited by the present application.

[0031] Among them, the hardness of the hardened film 2031, the hardness of the first buffer film 202a and the hardness of the second buffer film 202b are sequentially decreasing, and the thickness of the hardened film 2031, the thickness of the first buffer film 202a and the thickness of the second buffer film 202b are sequentially decreasing. In the present embodiment, the thickness of the second buffer film 202b is 75% to 90% of the thickness of the first buffer film 202a, and the thickness of the first buffer film 202a is 60% to 75% of the thickness of the hardened film 2031. Or, the sum of the thickness of the first buffer film 202a and the thickness of the second buffer film 202b is 95% to 105% of the thickness of the sticker film 2032, and the thickness of the hardened film 2031 is 75% to 90% of the thickness of the sticker film 2032.

[0032] For example, the first buffer film 202a is made of soft material and has a thickness of 75-90 micrometers (pm), the second buffer film 202b has a thickness of 95-110 pm, the hardening film 2031 has a thickness of 130-190 pm, the adhesive film 2032 is made of high-strength AB glue and has a thickness of 150-225 pm, the plate 201a has a thickness of 175-225 pm, and the dustproof film 201b is white and has a thickness of 100-150 pm.

[0033] In addition, the size film 200 also has an identification code 2021 (such as a QR code) on the buffer layer 202 in the embodiment, and the identification code 2021 can be directly printed on the buffer layer 202 or attached to the buffer layer 202. The present application is not limited to the above. For example, in other embodiments not shown in the present application, the number of layers of the size film 200 can be adjusted according to actual needs (such as omitting the bottom layer 201).

[0034] Further, the size film 200 (or the hardening film 2031) is defined to have a hardness of at least 5H (such as pencil hardness), and the area of the size film 200 is larger than the screen area of any mobile phone on the market. Therefore, any film cutting equipment used only for cutting soft film is different from the screen protection sticker customization system 1000 of the present embodiment.

[0035] Further, the material of the size film 200 can be adjusted according to actual needs. For example, the size film 200 can be a flexible protective film made of polyethylene terephthalate (PET), recycled polyethylene terephthalate (RPET), thermoplastic polyurethane resin (TPU), or recycled thermoplastic polyurethane resin (RTPU), but the present application is not limited thereto.

[0036] Further, in order to be able to cut the size film 200 with a hardness of at least 5H, the film cutting equipment 100 is provided with a film cutting tool 1 with a specific structural design. That is, the structural design of the film cutting tool 1 is a key factor for the film cutting equipment 100 to be able to cut the size film 200 with a hardness of at least 5H (for example, the present embodiment can realize a hardening film 2031 with a hardness of 7H by cooperation of the film cutting tool 1 and the size film 200, and can simultaneously avoid the generation of burrs on the adhesive film). Therefore, the present embodiment first introduces the film cutting tool 1, and then describes other components of the film cutting equipment 100.

[0037] As shown in FIG. 1, the film cutting tool 1 includes a tool body 11, a tool head 12, and a tool handle 13. Figures 2 to 7As shown, the film cutting tool 1 defines a transverse reference plane P1 perpendicular to the long axis direction L and a longitudinal reference plane P2 perpendicular to the transverse reference plane P1. In this embodiment, the film cutting tool 1 includes a mounting section 11, a support section 12 connected to the mounting section 11, and a cutting section 13 connected to the support section 12. The cutting section 13 is integrally connected to the support section 12, and the support section 12 is fixedly connected to the mounting section 11 by welding. That is, the film cutting tool 1 is a two-piece joint structure, and the film cutting tool 1 preferably excludes a one-piece integrally formed structure.

[0038] In another aspect, the mounting section 11 and the cutting section 13 are respectively connected to opposite ends of the support section 12, and the support section 12 is connected to the end face of the mounting section 11 substantially at the center, and the cutting section 13 is offset with respect to the end face of the support section 12, but not limited thereto.

[0039] The cutting section 13 has a first side surface 131, a second side surface 132 spaced from the first side surface 131, a primary blade surface 136 connected to the first side surface 131, and a main blade surface 133 connected to the second side surface 132 and the secondary blade surface 136. The first side surface 131, the second side surface 132, and the main blade surface 133 are planar, and the main blade surface 133 and the secondary blade surface 136 are connected to form a main edge 13a, and the main edge 13a is located above the longitudinal reference plane P2, and the secondary blade surface 136 is elongated and parallel to the main edge 13a.

[0040] Among them, the first side surface 131 and the longitudinal reference plane P2 are clamped at an angle σ3 of 1-3 degrees, the main edge 13a and the transverse reference plane P1 form a first angle σ1 of 43-47 degrees, and the main edge 13a corresponds to the long axis direction L and has a first height H1 of 0.98-1.08 mm. In addition, the width W136 of the secondary blade surface 136 is between 0.01-0.03 mm, and the area of the main blade surface 133 is at least 5 times the area of the secondary blade surface 136.

[0041] Accordingly, the film cutting tool 1 is formed by the cutting section 13 with specific conditions to facilitate cutting the size film 200. In addition, in order to make the film cutting tool 1 more easily cut the size film 200, the film cutting tool 1 preferably has at least part of the following features, but not limited thereto.

[0042] Further, the support section 12 defines a center line C parallel to the long axis direction L, and the center line C is above the longitudinal reference plane P2 in the present embodiment, but is not limited thereto. A distance D131 between the first side surface 131 and the center line C is smaller than a distance D132 between the second side surface 132 and the center line C. A second angle σ2 between the second side surface 132 and the transverse reference plane P1 is between 91 degrees and 91.5 degrees.

[0043] Further, the main blade 13a has a tip end 131a distal from the support section 12 and a top end 132a adjacent to the support section 12, and the main blade surface 133 has a bottom edge 1331 connected to the tip end 131a and a top edge 1332 connected to the top end 132a. The bottom edge 1331 of the main blade surface 133 has a height H1331 of between 0.73 mm and 0.77 mm corresponding to the long axis direction L.

[0044] The cutting section 13 has a first end surface 134 and a second end surface 135 spaced apart from each other. The first end surface 134 is connected to the first side surface 131, the second side surface 132, and the bottom edge 1331 of the main blade surface 133 to collectively form the tip end 131a. The second end surface 135 is connected to the first side surface 131, the second side surface 132, and the top edge 1332 of the main blade surface 133 to collectively form the top end 132a.

[0045] The first side surface 131, the first end surface 134, the second side surface 132, and the second end surface 135 are connected to form a ring shape and are ring side surfaces of the cutting section 13. The first side surface 131 and the second side surface 132 are spaced apart by a blade thickness T13, which can be configured to be equal in thickness from the first end surface 134 toward the second end surface 135, but is not limited thereto. That is, in other embodiments not shown in the present disclosure, the blade thickness T13 can gradually increase from the tip end 131a toward the top end 132a to effectively support the main blade 13a. Further, the blade thickness T13 is preferably between 0.26 mm and 0.31 mm, but the present disclosure is not limited thereto.

[0046] The first end surface 134 is formed with a secondary cutting edge 13b extending from the blade tip 131a. The secondary cutting edge 13b has a second height H2 ranging from 4 μm to 6 μm along the longitudinal direction L. Thus, the film cutting tool 1 can achieve specific conditions for the primary cutting edge 13a and the secondary cutting edge 13b, so that the primary cutting edge 13a and the secondary cutting edge 13b cooperate with each other to more effectively cut the size film 200 and effectively prevent burrs on the size film 200 from forming on the laminating film 2032.

[0047] It should be additionally explained that the support section 12 and the cutting section 13 of the film cutting tool 1 are preferably made of tungsten steel or tungsten-containing forged powder high-speed steel, and the outer surface of the cutting section 13 can be further electroplated with a DLC (Diamond Like Carbon) coating, which has the high hardness of diamond and the lubricity of graphite and is an amorphous coating film composed of carbon and hydrogen. It is preferably made using PVD or PACVD technology, but the present invention is not limited to this. For example, the film cutting tool 1 can also be made of other materials, or other hardening treatments can be applied to its outer surface. Furthermore, the support section 12 and the cutting section 13 are made of non-magnetizable materials in this embodiment, while the mounting section 11 is made of magnetizable materials.

[0048] Furthermore, although the film cutting tool 1 is described in this embodiment as being used in the film cutting device 100, the present invention is not limited thereto. For example, in other embodiments not shown in the present invention, the film cutting tool 1 can also be used alone (e.g., sold) or in conjunction with other components according to actual needs.

[0049] like Figure 1 、 Figure 8 and Figure 9 The above is a structural description of the film cutting tool 1. The following describes the other components of the film cutting device 100. The film cutting device 100 includes a carrier body 2, a displacement mechanism 3, a processing module 4, and a scanner 5. The displacement mechanism 3, the processing module 4, and the scanner 5 are all mounted on the carrier body 2, and the displacement mechanism 3 and the scanner 5 are electrically coupled to the processing module 4.

[0050] Furthermore, the displacement mechanism 3 is movable relative to the carrier body 2, and the processing module 4 is electrically coupled to the displacement mechanism 3 to drive the displacement mechanism 3 to move sequentially along a first cutting path and a second cutting path that are different from each other. The film cutting tool 1 is mounted on the displacement mechanism 3 by the mounting section 11, so that the film cutting tool 1 can move synchronously with the displacement mechanism 3. In this embodiment, the mounting section 11 is made of a magnetizable material so that the displacement mechanism 3 can fix the mounting section 11 by magnetic attraction, and the displacement mechanism 3 can also change the direction of its magnetic force corresponding to the mounting section 11 to drive the mounting section 11 to rotate and change direction during the movement process.

[0051] In addition, the cloud server 300 is electrically coupled to the processing module 4 and the scanner 5, so that when the size film 200 is fixed to the carrier body 2, the scanner 5 can scan the identification code 2021 of the size film 200 to generate a signal, and the cloud server 300 can receive the signal through the processing module 4 to allow the film cutting equipment 100 to perform the cutting operation and identify the material of the size film 200.

[0052] It should be noted that the processing module 4 in this embodiment also includes a touch screen for the user to input the model of the mobile phone to which the film is to be applied. Accordingly, the processing module 4 can cause the film cutting device 100 to perform the corresponding cutting operation based on the mobile phone model input by the user, but the present invention is not limited to this. For example, in other embodiments not shown in the present invention, the processing module 4 can also receive signals from an external device (such as a computer or the user's mobile phone) through other means to obtain the model of the mobile phone to which the film is to be applied.

[0053] When the size film 200 is placed on the film cutting device 100 for the cutting operation, the size film 200 is fixed to the carrier body 2, and the displacement mechanism 3 is driven by the processing module 4, so that the main edge 13a of the film cutting tool 1 is first cut along the first cutting path relative to the buffer layer 202 and the use layer 203 to form a first contour S1, and then cut along the second cutting path to form a second contour S2 located outside the first contour S1, which has at least one positioning hole 2022.

[0054] As described above, since the film cutting device 100 cuts into the size film 200 through the buffer layer 202 rather than the bonding film 2032 of the use layer 203, it can effectively reduce damage to the adhesive layer of the bonding film 2032 and avoid burrs on the use layer 203.

[0055] It is additionally noted that the displacement mechanism 3 can drive the film cutting tool 1 to move relative to the size film 200 along mutually perpendicular X-axis, Y-axis and Z-axis directions, and the object to be moved (such as the film cutting tool 1 or the size film 200) can be adjusted according to actual needs. For example, the film cutting tool 1 can be driven by the displacement mechanism 3 to move along the X-axis and Z-axis directions, and the size film 200 is driven by the displacement mechanism 3 to move along the Y-axis direction, so that the film cutting tool 1 can sequentially move along the first cutting path and the second cutting path relative to the size film 200.

[0056] Further, after the size film 200 is formed into the screen protection sticker through the cutting operation, the buffer layer 202 has a screen block 2023 and a plurality of positioning blocks 2024 separated from the screen block 2023.

[0057] [Technical effects of the embodiment of the present application]

[0058] In summary, the screen protection sticker customization system and the film cutting tool disclosed by the embodiment of the present application can facilitate cutting the size film (or the hardened film) having a hardness of at least 5H by having specific conditions (such as the angle range of the oblique angle, the configuration of the secondary blade surface, the first angle of the primary blade corresponding to the primary blade being between 43 degrees and 47 degrees, and the first height of the primary blade being between 0.98 millimeters and 1.08 millimeters, and the structural configuration of the size film) at the cutting section.

[0059] Further, the film cutting tool disclosed by the embodiment of the present application can also facilitate cutting the size film having a hardness of at least 5H and effectively avoid the size film from generating burrs on the adhered film by having the primary blade and the secondary blade with specific conditions (such as the secondary blade having a second height between 4 microns and 6 microns).

[0060] The above disclosed content is only the preferred feasible embodiment of the present application, and does not limit the patent scope of the present application, so any equivalent technical changes made according to the content of the present application specification and drawings are included in the patent scope of the present application.

Claims

1. A screen protection sticker customization system, comprising: The screen protector customization system comprises: The film cutting device comprises: a carrier body; a displacement mechanism mounted on the carrier body and movable relative to the carrier body; a processing module mounted on the carrier body; wherein the processing module is electrically coupled to the displacement mechanism to drive the displacement mechanism to move along a first cutting path and a second cutting path in sequence; and a film cutter mounted on the displacement mechanism; wherein the film cutter defines a transverse reference surface perpendicular to the direction of the long axis thereof and a longitudinal reference surface perpendicular to the transverse reference surface, and the film cutter comprises: a support section; and a cutting section connected to the support section, and the cutting section has a first side surface, a second side surface spaced from the first side surface, a primary blade surface connected to the first side surface, and a main blade surface connected to the second side surface and the secondary blade surface; wherein the main blade surface and the secondary blade surface are connected to form a main edge, and the main edge is located on the longitudinal reference surface; wherein the first side surface and the longitudinal reference surface have an included angle of 1-3 degrees, the main edge and the transverse reference surface form a first angle of 43-47 degrees, and the main edge has a first height of 0.98-1.08 mm corresponding to the direction of the long axis; and a size film that can be cut into a screen protector by a cutting operation of the film cutting device; wherein the size film comprises: a use layer having a hardened film and a bonding film formed on the hardened film; wherein the hardened film has a hardness of at least 5H; a buffer layer comprising a first buffer film attached to the hardened film and a second buffer film attached to the first buffer film; wherein the hardness of the hardened film, the hardness of the first buffer film, and the hardness of the second buffer film decrease in sequence, and the thickness of the hardened film, the thickness of the first buffer film, and the thickness of the second buffer film decrease in sequence; and a bottom layer attached to the bonding film; and wherein when the size film is placed in the film cutting device for the cutting operation, the bottom layer of the size film is fixed to the carrier body, the displacement mechanism is driven by the processing module, the main edge of the film cutter is first cut along the first cutting path to form a first profile relative to the buffer layer and the use layer, and then cut along the second cutting path to form a second profile on the outside of the first profile, which has at least one positioning hole.

2. The screen protector guest customization system of claim 1, wherein, The main edge has a blade tip end away from the support section and a top end adjacent to the support section, the main blade surface has a bottom edge connected to the blade tip end and a top edge connected to the top end; wherein the cutting section has: a first end surface connected to the first side surface, the second side surface, and the bottom edge of the main blade surface to collectively form the blade tip end; and a second end surface connected to the first side surface, the second side surface, and the top edge of the main blade surface to collectively form the top end.

3. The screen protector guest customization system of claim 2, wherein, The first end surface is formed with a pair of edges extending from the tip end, and the pair of edges has a second height of 4-6 microns in the long axis direction.

4. The screen protector guest customization system of claim 1, wherein, The secondary cutting edge is elongated and parallel to the primary cutting edge, the secondary cutting edge has a width of 0.01-0.03 mm, and the area of the primary cutting edge is at least 5 times the area of the secondary cutting edge.

5. The screen protector guest customization system of claim 2, wherein, The bottom edge of the primary cutting edge has a height of 0.73-0.77 mm in the long axis direction, the support section is defined with a center line parallel to the long axis direction, and the distance between the first side surface and the center line is less than the distance between the second side surface and the center line; a second angle of 91-91.5 degrees is formed between the second side surface and the transverse reference surface.

6. The screen protector guest customization system of claim 1, wherein, The cutting section is integrally connected to the support section, the cutting film tool comprises a mounting section, and the support section is welded and fixed to the mounting section.

7. The screen protector guest customization system of claim 1, wherein, The size film has an identification code on the buffer layer, the cutting film equipment further comprises a scanner mounted on the carrier body, which is electrically connected to the processing module; wherein, the screen saver customization system comprises a cloud server electrically connected to the processing module and the scanner; wherein, when the size film is fixed on the carrier body, the scanner can scan the identification code to generate a signal, and the cloud server can receive the signal through the processing module to allow the cutting film equipment to perform the cutting operation.

8. The screen protector guest customization system of claim 1, wherein, The thickness of the second buffer film is 75-90% of the thickness of the first buffer film, and the thickness of the first buffer film is 60-75% of the thickness of the hardened film.

9. The screen protector guest customization system of claim 1, wherein, The sum of the thickness of the first buffer film and the thickness of the second buffer film is 95-105% of the thickness of the fitted film, and the thickness of the hardened film is 75-90% of the thickness of the fitted film.

10. A film cutting knife characterized by, The cutting film tool is defined with a transverse reference surface perpendicular to the long axis direction and a longitudinal reference surface perpendicular to the transverse reference surface, and the cutting film tool can be used to cut a size film with a hardness of at least 5H; wherein, the cutting film tool comprises: a support section; and a cutting section connected to the support section, and the cutting section has a first side surface, a second side surface spaced from the first side surface, a secondary cutting edge connected to the first side surface, and a primary cutting edge connected to the second side surface and the secondary cutting edge; wherein, the primary cutting edge and the secondary cutting edge form a primary edge, and the primary edge is located above the longitudinal reference surface; wherein, the first side surface and the longitudinal reference surface form an included angle of 1-3 degrees, the primary edge and the transverse reference surface form a first angle of 43-47 degrees, and the primary edge has a first height of 0.98-1.08 mm in the long axis direction.

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