A mobile phone protective film die cutting and trimming structure

Abstract

The utility model discloses a kind of mobile phone protective film die cutting edge trimming structure, belong to mobile phone protective film edge trimming technical field.A kind of mobile phone protective film die cutting edge trimming structure, including work platform and support frame, push mechanism is installed on support frame, first tool rest and first die cutting knife are set in support frame, further include locating sleeve, one end of locating sleeve close to work platform is installed with second tool rest and second die cutting knife installed on second tool rest, rack is fixedly installed on first tool rest and locating sleeve, gear is installed on support frame and is engaged with the rack on both sides Meshing connection, by first die cutting knife to mobile phone film is partially penetrated cutting, pre-cutting line is formed, by second die cutting knife executes additional or auxiliary cutting operation, effectively ensure the high accuracy and stability of cutting process, avoid the material deformation or displacement problem possibly caused by one-time full cutting, guarantee the smoothness of edge without burr simultaneously, improve finished product quality and production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mobile phone protective film trimming technology, and in particular to a mobile phone protective film die-cutting trimming structure. Background Technology

[0002] With the widespread use of smartphones and the increasing demands for the aesthetics and feel of mobile phones, screen protectors, as an important accessory to protect mobile phone screens from scratches and damage, directly affect the user experience. Traditional screen protectors are usually made of one or more layers of plastic film, which need to be cut into a shape that matches the mobile phone screen through a die-cutting process during the production process.

[0003] Traditional die-cutting technology for mobile phone screen protectors mainly relies on fixed cutting molds or manual operation. However, a one-time full cut may cause material deformation or displacement, especially when processing thin or soft film materials, which can easily lead to an increase in scrap rate. Utility Model Content

[0004] The purpose of this invention is to solve the problem that one-time full cutting in the prior art may cause material deformation or displacement, especially when processing thin or soft film materials, which easily leads to an increase in scrap rate. Therefore, a die-cutting and trimming structure for mobile phone protective films is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A die-cutting and trimming structure for mobile phone protective films includes a working platform, a support frame fixedly mounted on the working platform, a pushing mechanism mounted on the support frame, a first blade holder and a first die-cutting blade mounted on the first blade holder inside the support frame, the movable end of the pushing mechanism being fixed to the first blade holder, and a positioning sleeve slidably mounted on the support frame and sleeved on the first blade holder. A second blade holder and a second die-cutting blade mounted on the second blade holder are mounted on one end of the positioning sleeve near the working platform. Both the first blade holder and the positioning sleeve are fixedly mounted with racks, and gears that mesh with the racks on both sides are mounted on the support frame.

[0006] To increase the flexibility and adaptability of the die-cutting and trimming structure, preferably, the second cutter holder has a groove on the side near the positioning sleeve, the positioning sleeve has a positioning pin that matches the groove, and a spring is fixedly connected between the positioning pin and the bottom surface of the groove.

[0007] In order to prevent the second die-cutting blade from interfering with the first die-cutting blade when it is performing the main cutting task, the contact surfaces of the second blade holder and the first blade holder are both inclined surfaces.

[0008] For ease of cleaning and replacement, preferably, the first blade holder and the first die-cutting blade are connected by bolts.

[0009] Furthermore, the second blade holder and the second die-cutting blade are connected by bolts.

[0010] To prevent the screen protector from moving or shifting during the cutting process, the working platform further includes a base and a vacuum adsorption seat mounted on the base for fixing the screen protector during the initial pressing process.

[0011] In order to handle various sizes of mobile phone screen protectors, a guide plate is further included, which is symmetrically arranged on both sides of the vacuum adsorption base, and the guide plate and the vacuum adsorption base are located on the same horizontal plane. The guide plate has an adjustment groove, and a limit bolt is installed in the adjustment groove.

[0012] Compared with the prior art, this utility model provides a die-cutting and trimming structure for mobile phone protective films, which has the following beneficial effects: 1. The die-cutting and trimming structure of this mobile phone protective film partially penetrates and cuts the film with the first die-cutting blade to form a pre-cutting line. The second die-cutting blade performs additional or auxiliary cutting operations, which effectively ensures the high precision and stability of the cutting process, avoids material deformation or displacement problems that may be caused by one-time full cutting, and ensures smooth and burr-free edges, thereby improving the quality of finished products and production efficiency. 2. The die-cutting and trimming structure of this mobile phone protective film allows for quick and convenient operation by connecting the blade holder and the die-cutting blade with bolts, reducing downtime and improving production efficiency. Different shapes and sizes of die-cutting blades can be selected according to different cutting tasks. Simply unscrew the bolts and replace the corresponding blade. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a die-cutting and trimming structure for a mobile phone protective film proposed in this utility model; Figure 2 This is a schematic diagram of the first cutter holder and positioning sleeve structure of a mobile phone protective film die-cutting and trimming structure proposed in this utility model; Figure 3 This is a schematic diagram of the second cutter holder structure of a mobile phone protective film die-cutting and trimming structure proposed in this utility model; Figure 4 This is a schematic diagram of the guide plate installation structure for a mobile phone protective film die-cutting and trimming structure proposed in this utility model.

[0014] In the diagram: 1. Working platform; 101. Base; 102. Vacuum adsorption seat; 103. Guide plate; 104. Adjustment groove; 105. Limiting bolt; 2. Support frame; 3. First cutter holder; 4. First die-cutting blade; 5. Positioning sleeve; 501. Positioning pin; 6. Second cutter holder; 601. Slide groove; 602. Spring; 7. Second die-cutting blade; 8. Rack; 9. Gear. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 limitations on this utility model.

[0017] Example: Reference Figures 1-4 The device includes a work platform 1 for placing the mobile phone protective film material to be processed. A support frame 2 is fixedly installed on the work platform 1, and a pushing mechanism is installed on the support frame 2. A first cutter holder 3 and a first die-cutting blade 4 installed on the first cutter holder 3 are arranged inside the support frame 2, which are responsible for completing the main cutting task. The movable end of the pushing mechanism is fixed to the first cutter holder 3. Preferably, the pushing mechanism may be a cylinder, an electric push rod, or other form of power source to drive the first cutter holder 3 to move up and down to realize the die-cutting action. In this embodiment, a cylinder is preferred because it has the advantages of fast response. The device also includes a positioning sleeve 5, which is slidably installed on the support frame 2 and fitted onto it. On the first cutter holder 3, a second cutter holder 6 and a second die-cutting blade 7 are installed on the end of the positioning sleeve 5 near the working platform 1. These are used to perform additional or auxiliary cutting operations, such as trimming. Both the first cutter holder 3 and the positioning sleeve 5 are fixedly mounted with racks 8. The support frame 2 is equipped with gears 9 that mesh with the racks 8 on both sides. When the first cutter holder 3 is driven by the pushing mechanism, the racks 8 drive the gears 9 to rotate. The interaction between the gears 9 and the racks 8 causes the positioning sleeve 5 to move synchronously, ensuring coordinated movement between the two cutting tools and thus ensuring the consistency and accuracy of the cutting path.

[0018] When the mobile phone protective film die-cutting and trimming structure is in operation, the mobile phone protective film material to be processed is placed flat on the work platform 1. It is confirmed that the support frame 2, pushing mechanism, first cutter holder 3, first die-cutting blade 4, positioning sleeve 5, second cutter holder 6, and second die-cutting blade 7 are securely installed, and that the meshing between gear 9 and rack 8 is normal. The operator starts the pushing mechanism to push the first cutter holder 3 downwards. As the first cutter holder 3 moves downwards, the rack 8 fixed to it drives the gear 9 to rotate. Since gear 9 simultaneously meshes with the rack 8 on the positioning sleeve 5, the rotation of gear 9 also drives the positioning sleeve 5 to move upwards synchronously. The first die-cutting blade 4 follows the first... The blade holder 3 moves together, contacts and begins to cut the mobile phone protective film material placed on the work platform 1, partially penetrating the film to form a pre-cut line, avoiding material deformation or displacement problems that may be caused by a one-time full cut. As the pushing mechanism pulls the first blade holder 3 upward, the positioning sleeve 5 drives the second blade holder 6 and the second die-cutting blade 7 to move downward simultaneously. The second die-cutting blade 7 performs additional or auxiliary cutting operations, such as fine trimming of the cut edges to ensure that the edges are smooth and burr-free. After the cutting is completed, the operator removes the finished mobile phone protective film that has been cut and trimmed from the work platform 1 and prepares for the next cycle of operation.

[0019] To increase the flexibility and adaptability of the die-cutting and trimming structure, a groove 601 is provided on the side of the second cutter holder 6 near the positioning sleeve 5. The positioning sleeve 5 has a positioning pin 501 that matches the groove 601. The design of the groove 601 ensures that the movement of the second cutter holder 6 relative to the positioning sleeve 5 is controlled and can move in a specific direction. The positioning pin 501 is fixed to the positioning sleeve 5, and its shape and size are adapted to the groove 601, so that it can slide freely in the groove 601 but cannot be disengaged. This provides a guiding function for the second cutter holder 6 and ensures that the connection between the two is stable. A spring 602 is fixedly connected between the positioning pin 501 and the bottom surface of the groove 601. The function of the spring 602 is to provide a restoring force. When an external force causes the second cutter holder 6 to deviate from its initial position, the spring 602 can pull the second cutter holder 6 back to its original position.

[0020] Furthermore, the contact surfaces of the second tool holder 6 and the first tool holder 3 are both inclined surfaces.

[0021] The cylinder acts as a pushing mechanism to move the first cutter holder 3 downward. Since the contact surface between the first cutter holder 3 and the second cutter holder 6 is an inclined plane, as the first cutter holder 3 moves downward, it applies a lateral force to the second cutter holder 6 through the inclined plane. This lateral force causes the second cutter holder 6 to move along the slide groove 601 on the positioning sleeve 5. Because of the presence of the spring 602, this movement process is controlled and has a buffering effect. In this way, when the first die-cutting blade 4 performs the main cutting task, the second die-cutting blade 7 will not cause interference. When the first die-cutting blade 4 finishes cutting, the cylinder piston rod retracts, driving the first cutter holder 3 to move upward. Under the action of the spring 602, the second cutter holder 6 returns to its initial position to perform the trimming work.

[0022] Preferably, the first cutter holder 3 and the first die-cutting blade 4 are connected by bolts.

[0023] The second cutter holder 6 and the second die-cutting blade 7 are connected by bolts.

[0024] When it is necessary to inspect, clean, or replace the die-cutting blade, the bolted connection allows for quick and easy operation, reducing downtime, improving production efficiency, and allowing for the selection of different shapes and sizes of die-cutting blades according to different cutting tasks. Simply unscrew the bolts and replace the corresponding blade.

[0025] The working platform 1 includes a base 101 and a vacuum adsorption seat 102 mounted on the base 101, which is used to fix the screen protector during the initial pressing process.

[0026] The vacuum adsorption seat 102 adsorbs and fixes the mobile phone protective film material placed on it by generating negative pressure. Its surface usually has evenly distributed small holes, which are connected to a vacuum pump system. When the vacuum pump is started, air is drawn out of the small holes to form a negative pressure environment, thereby firmly adsorbing the mobile phone film on the adsorption seat and preventing it from moving or shifting during the cutting process. This helps to maintain the consistency and accuracy of the cutting path.

[0027] It also includes guide plates 103, which are symmetrically arranged on both sides of the vacuum adsorption seat 102, and the guide plates 103 and the vacuum adsorption seat 102 are located on the same horizontal plane. The guide plates 103 have adjustment grooves 104, and limit bolts 105 are installed in the adjustment grooves 104.

[0028] The position of the limiting bolt 105 can be adjusted according to different film material sizes or cutting requirements, which increases the adaptability and versatility of the equipment and can handle various specifications of mobile phone films. When the mobile phone film is placed on the vacuum adsorption seat 102, the guide plate 103 plays a guiding role, helping the film material to fall smoothly on the adsorption seat and reducing the generation of wrinkles or bubbles.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A die-cutting and trimming structure for mobile phone protective films, comprising a working platform (1), characterized in that, A support frame (2) is fixedly installed on the work platform (1). A pushing mechanism is installed on the support frame (2). A first knife holder (3) and a first die-cutting knife (4) are provided inside the support frame (2). The movable end of the pushing mechanism is fixed to the first knife holder (3). It also includes a positioning sleeve (5), which is slidably installed on the support frame (2) and sleeved on the first knife holder (3). A second knife holder (6) and a second die-cutting knife (7) are installed on the end of the positioning sleeve (5) near the work platform (1). Among them, racks (8) are fixedly installed on the first tool holder (3) and the positioning sleeve (5), and gears (9) that mesh with the racks (8) on both sides are installed on the support frame (2).

2. The die-cutting and trimming structure for a mobile phone protective film according to claim 1, characterized in that, The second tool holder (6) has a groove (601) on the side near the positioning sleeve (5). The positioning sleeve (5) has a positioning pin (501) that is adapted to the groove (601). A spring (602) is fixedly connected between the positioning pin (501) and the bottom surface of the groove (601).

3. The die-cutting and trimming structure for a mobile phone protective film according to claim 2, characterized in that, The contact surfaces of the second tool holder (6) and the first tool holder (3) are both inclined surfaces.

4. The die-cutting and trimming structure for a mobile phone protective film according to claim 1, characterized in that, The first blade holder (3) is connected to the first die-cutting blade (4) by bolts.

5. The die-cutting and trimming structure for a mobile phone protective film according to claim 1, characterized in that, The second blade holder (6) is connected to the second die-cutting blade (7) by bolts.

6. The die-cutting and trimming structure for a mobile phone protective film according to claim 5, characterized in that, The working platform (1) includes a base (101) and A vacuum adsorption seat (102) mounted on the base (101) is used to fix the screen protector during the initial press.

7. The die-cutting and trimming structure for a mobile phone protective film according to claim 6, characterized in that, It also includes a guide plate (103), which is symmetrically arranged on both sides of the vacuum adsorption seat (102), and the guide plate (103) and the vacuum adsorption seat (102) are located on the same horizontal plane. The guide plate (103) has an adjustment groove (104), and a limit bolt (105) is installed in the adjustment groove (104).

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