Protective film winding equipment

Abstract

The utility model discloses protective film winding equipment, which relates to the technical field of winding equipment and comprises a bottom plate, a supporting plate is fixedly connected to the rear side of the left end of the upper surface of the bottom plate, a winding motor is fixedly connected to the rear side of the supporting plate, and the output end of the winding motor penetrates through the supporting plate and is fixedly connected with a winding roller. Two movable sleeves are fixedly connected to the upper surface of the bottom plate and below the winding roller, telescopic rods are slidably connected to the interiors of the two movable sleeves, an extrusion roller is rotatably connected to the upper portion between the two telescopic rods, the bottom of the extrusion roller abuts against the upper end of the winding roller, and extrusion springs are fixedly connected to the interiors of the two movable sleeves; the upper end of the extrusion spring is fixedly connected with the bottom of the telescopic rod. The device has the advantages that the tension difference often caused by non-uniform winding speed or material when the protective film is wound can be balanced by the pulling force provided by the flattening mechanism, and the film material is ensured to be subjected to uniform tension distribution in the whole process, so that local wrinkles are effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of winding equipment technology, specifically to a protective film winding equipment. Background Technology

[0002] Screen protectors can be categorized by their use, including digital product protectors, automotive protectors, household protectors, and food preservation protectors. With the widespread use of mobile phones and other digital products in China, "screen protector" has gradually become a general term for screen protectors, and their functions within this field are incredibly diverse. Materials have evolved from the earliest PP material to the currently popular AR material. Functionally, a screen protector is meant to place a film over the object we want to protect. Currently, the market offers various functional screen protectors such as AR anti-reflective films, AG frosted anti-reflective films, mobile phone mirror films, privacy films, and high-definition scratch-resistant films.

[0003] When protective film is being wound up, it may overlap or wrinkle. Wrinkles can cause unevenness on the film surface, resulting in irregular ripples or wrinkles that affect the product's visual appearance. Furthermore, wrinkled protective film may cause problems during later cutting, shaping, or other processing, leading to an increased scrap rate and reduced product consistency and pass rate. To address these issues, a protective film winding device is proposed. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a protective film winding device. This device solves the problem that, during the winding process of existing protective films, overlaps or wrinkles may occur. Wrinkles result in an uneven film surface, potentially causing irregular ripples or wrinkles that affect the product's visual appearance. Furthermore, wrinkled protective films may cause problems during later cutting, shaping, or other processing, leading to increased scrap rates and reduced product consistency and pass rates.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a protective film winding device, comprising a base plate, a support plate fixedly connected to the rear left side of the upper surface of the base plate, a winding motor fixedly connected to the rear side of the support plate, the output end of the winding motor passing through the support plate and fixedly connected to a winding roller, two movable sleeves fixedly connected to the upper surface of the base plate and below the winding roller, telescopic rods slidably connected inside the two movable sleeves, a compression roller rotatably connected above the two telescopic rods, the bottom of the compression roller abutting against the upper end of the winding roller, compression springs fixedly connected inside the two movable sleeves, the upper ends of the compression springs fixedly connected to the bottom of the telescopic rods, a support frame fixedly connected to the right side of the upper surface of the base plate, a flattening mechanism installed below the support frame, and a spreading platform fixedly connected to the upper surface of the base plate and below the flattening mechanism.

[0006] Preferably, the upper surface of the base plate has two fixed frames fixedly connected between the winding roller and the unwinding platform, and two pressure rollers are rotatably connected between the two fixed frames.

[0007] Preferably, the flattening mechanism includes a mounting plate and two lead screw stepper motors. The two lead screw stepper motors are respectively fixedly connected to the front and rear sides of the top plate of the support frame. Each of the two lead screw stepper motors has a threaded rod inside. Both ends of the two threaded rods are rotatably connected to connecting plates. The lower connecting plate is fixedly connected to the upper surface of the mounting plate.

[0008] Preferably, guide rods are fixedly connected between the upper and lower connecting plates and the left and right sides of the lead screw stepper motor, and the guide rods are slidably connected to the top plate of the support frame through sliding sleeves.

[0009] Preferably, rotating frames are fixedly connected to both the front and rear sides of the bottom of the mounting plate, and flattening rollers are rotatably connected inside both sets of rotating frames. The right side of each of the two flattening rollers passes through the right side of the rotating frame and is fixedly connected to a second synchronous wheel.

[0010] Preferably, a base plate is fixedly connected to the center of the upper surface of the mounting plate, and gears are rotatably connected to the front and rear right sides of the base plate via rotating shafts. The two gears mesh with each other, and a first synchronous pulley is fixedly connected to the right side surface of each of the two gears. The first synchronous pulley is connected to the second synchronous pulley via a synchronous belt.

[0011] Preferably, a drive motor is fixedly connected to the rear left side of the substrate, and the output end of the drive motor is fixedly connected to the left end of the rear gear through a coupling.

[0012] Compared with the prior art, the advantages of this utility model are as follows: By setting up a flattening mechanism, a mutual pulling force is applied to both sides of the protective film, which can generate a uniform tension on both sides of the protective film. This prevents wrinkles from forming due to local slack or excessive stretching during the winding process. The pulling force provided by the flattening mechanism can balance the tension difference that often occurs during the winding of the protective film due to uneven winding speed or material, ensuring that the film material is subjected to uniform tension distribution throughout the process, thereby effectively avoiding the formation of local wrinkles. In this way, the surface of the film material always remains flat, avoiding appearance and functional problems caused by wrinkles. At the same time, through the action of the squeeze roller, air between the films can be effectively discharged, avoiding the formation of air bubbles and voids, ensuring that the surface of the protective film is smooth and flat. Through squeezing and pressing, the squeeze roller can effectively eliminate wrinkles that may be generated during the winding process, ensuring that the final wound protective film is smooth and flat, providing better quality assurance for later use and processing. Attached Figure Description

[0013] Figure 1This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram showing the connection between the support frame and the flattening mechanism in this utility model;

[0015] Figure 3 This is an exploded view of the movable sleeve and telescopic rod in this utility model;

[0016] Figure 4 This is a schematic diagram of the flattening mechanism in this utility model.

[0017] The numbers on the map are:

[0018] 1. Base plate; 2. Support plate; 3. Rewinding motor; 4. Rewinding roller; 5. Movable sleeve; 6. Telescopic rod; 7. Extrusion roller; 8. Extrusion spring; 9. Support frame; 10. Flattening mechanism; 1001. Lead screw stepper motor; 1002. Threaded rod; 1003. Guide rod; 1004. Connecting plate; 1005. Mounting plate; 1006. Base plate; 1007. Drive motor; 1008. Gear; 1009. First synchronous pulley; 1010. Rotating frame; 1011. Flattening roller; 1012. Second synchronous pulley; 11. Flattening platform; 12. Fixing frame; 13. Pressure roller. Detailed Implementation

[0019] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0020] Reference Figure 1-4As shown, a protective film winding device includes a base plate 1. A support plate 2 is fixedly connected to the rear left side of the upper surface of the base plate 1. A winding motor 3 is fixedly connected to the rear side of the support plate 2. The output end of the winding motor 3 passes through the support plate 2 and is fixedly connected to a winding roller 4. The use of the winding motor 3 realizes the automated drive of the winding roller 4, improving production efficiency. The winding roller 4 can adopt the form of an air shaft to facilitate the connection of the paper tube and the winding of the protective film, and also facilitates the disassembly of the paper tube. Two movable sleeves 5 are fixedly connected to the upper surface of the base plate 1 and the lower part of the winding roller 4. Both movable sleeves 5 are slidably connected to a telescopic rod 6 inside. A compression roller 7 is rotatably connected above the telescopic rods 6. The bottom of the compression roller 7 abuts against the upper end of the take-up roller 4. Compression springs 8 are fixedly connected inside the two movable sleeves 5. The upper end of the compression springs 8 is fixedly connected to the bottom of the telescopic rods 6. A support frame 9 is fixedly connected to the right side of the upper surface of the base plate 1. A flattening mechanism 10 is installed below the support frame 9. A flattening platform 11 is fixedly connected to the upper surface of the base plate 1 and below the flattening mechanism 10. The arrangement of the movable sleeves 5 and the telescopic rods 6, together with the elasticity of the compression springs 8, allows the compression roller 7 to tightly adhere to the protective film on the take-up roller 4, thereby expelling air and pressing the protective film to prevent loosening.

[0021] Specifically, two fixed frames 12 are fixedly connected on the upper surface of the base plate 1 between the winding roller 4 and the unwinding platform 11. Two pressure rollers 13 are rotatably connected between the two fixed frames 12. The pressure rollers 13 are designed to properly press the protective film when it passes through, preventing the protective film from shifting or loosening during transmission.

[0022] In one embodiment, the flattening mechanism 10 includes a mounting plate 1005 and two lead screw stepper motors 1001. The two lead screw stepper motors 1001 are respectively fixedly connected to the front and rear sides of the top plate of the support frame 9. Each of the two lead screw stepper motors 1001 has a threaded rod 1002 threaded inside. Both ends of the two threaded rods 1002 are rotatably connected to a connecting plate 1004. The lower end connecting plate 1004 is fixedly connected to the upper surface of the mounting plate 1005. The drive of the lead screw stepper motors 1001 enables the mounting plate 1005 to move up and down, thereby adjusting the contact pressure between the flattening roller 1011 and the protective film, ensuring the flattening effect. The preferred model of the lead screw stepper motor 1001 is APPS8M-02A05-065ZG.

[0023] Specifically, guide rods 1003 are fixedly connected between the upper and lower end connecting plates 1004 and the left and right sides of the lead screw stepper motor 1001. The guide rods 1003 are slidably connected to the top plate of the support frame 9 through sliding sleeves.

[0024] Specifically, rotating frames 1010 are fixedly connected to the front and rear sides of the bottom of the mounting plate 1005. Flattening rollers 1011 are rotatably connected inside the two sets of rotating frames 1010. The right side of the two flattening rollers 1011 passes through the right side of the rotating frame 1010 and is fixedly connected to the second synchronous wheel 1012.

[0025] Furthermore, a base plate 1006 is fixedly connected to the center of the upper surface of the mounting plate 1005. Gears 1008 are rotatably connected to the front and rear right sides of the base plate 1006 via rotating shafts. The two gears 1008 mesh with each other. A first synchronous pulley 1009 is fixedly connected to the right side surface of each of the two gears 1008. The first synchronous pulley 1009 is connected to the second synchronous pulley 1012 via a synchronous belt. The coordinated use of the gears 1008, the first synchronous pulley 1009, the second synchronous pulley 1012, and the synchronous belt enables the two flattening rollers 1011 to rotate in opposite directions, applying outward force to both sides of the protective film and further enhancing the flattening effect.

[0026] Preferably, a drive motor 1007 is fixedly connected to the rear left side of the substrate 1006. The output end of the drive motor 1007 is fixedly connected to the left end of the rear gear 1008 via a coupling. The drive motor 1007 can be a servo motor, which can be easily programmed to adjust the speed of the two flattening rollers 1011 to prevent excessive tension from tearing the protective film.

[0027] Working principle: In use, firstly, a paper tube is fitted onto the surface of the take-up roller 4. Then, the protective film passes over the spreading platform 11 and between the two pressure rollers 13, connecting with the paper tube. Next, the lead screw stepper motor 1001 drives the threaded rod 1002 to rotate, causing the mounting plate 1005 to move up and down through meshing. This brings the spreading roller 1011 into contact with the upper surface of the protective film. Then, the take-up motor 3 drives the take-up roller 4 to rotate, thus winding the protective film. At this time, the drive motor 1007 drives the rear gear 1008 to rotate, and then the first synchronous pulley 1... The transmission action of 009 and the synchronous belt causes the rear second synchronous pulley 1012 to rotate, thereby pulling the protective film. Since the two gears 1008 are meshed with each other, the front second synchronous pulley 1012 will rotate in the opposite direction to the rear second synchronous pulley 1012, thereby applying an outward force to both sides of the protective film to flatten it. The extrusion roller 7 will extrude the protective film wound on the winding roller 4 when the winding roller 4 is winding. While removing the air mixed between the films during the winding process, it can further tighten the wound protective film to prevent the protective film from becoming loose.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A protective film winding device, characterized in that: The system includes a base plate (1), a support plate (2) is fixedly connected to the rear left side of the upper surface of the base plate (1), a winding motor (3) is fixedly connected to the rear side of the support plate (2), the output end of the winding motor (3) passes through the support plate (2) and is fixedly connected to a winding roller (4), two movable sleeves (5) are fixedly connected to the upper surface of the base plate (1) and below the winding roller (4), telescopic rods (6) are slidably connected inside the two movable sleeves (5), a squeeze roller (7) is rotatably connected between the two telescopic rods (6), the bottom of the squeeze roller (7) abuts against the upper end of the winding roller (4), a squeeze spring (8) is fixedly connected inside the two movable sleeves (5), the upper end of the squeeze spring (8) is fixedly connected to the bottom of the telescopic rod (6), a support frame (9) is fixedly connected to the right side of the upper surface of the base plate (1), a flattening mechanism (10) is installed below the support frame (9), and a flattening platform (11) is fixedly connected to the upper surface of the base plate (1) and below the flattening mechanism (10).

2. The protective film winding device according to claim 1, characterized in that: The upper surface of the base plate (1) has two fixed frames (12) fixedly connected between the winding roller (4) and the unfolding platform (11), and two pressure rollers (13) are rotatably connected between the two fixed frames (12).

3. The protective film winding device according to claim 1, characterized in that: The flattening mechanism (10) includes a mounting plate (1005) and two lead screw stepper motors (1001). The two lead screw stepper motors (1001) are respectively fixedly connected to the front and rear sides of the top plate of the support frame (9). The two lead screw stepper motors (1001) are threaded with threaded rods (1002) inside. The upper and lower ends of the two threaded rods (1002) are rotatably connected to connecting plates (1004). The lower end of the connecting plate (1004) is fixedly connected to the upper surface of the mounting plate (1005).

4. The protective film winding device according to claim 3, characterized in that: Guide rods (1003) are fixedly connected between the connecting plates (1004) at the top and bottom ends and the left and right sides of the lead screw stepper motor (1001). The guide rods (1003) are slidably connected to the top plate of the support frame (9) through a sliding sleeve.

5. A protective film winding device according to claim 3, characterized in that: The mounting plate (1005) has rotating frames (1010) fixedly connected to both the front and rear sides of its bottom. The two sets of rotating frames (1010) are rotatably connected to flattening rollers (1011). The right side of each of the two flattening rollers (1011) passes through the right side of the rotating frame (1010) and is fixedly connected to a second synchronous wheel (1012).

6. The protective film winding device according to claim 3, characterized in that: A base plate (1006) is fixedly connected to the middle of the upper surface of the mounting plate (1005). Gears (1008) are rotatably connected to the front and back right sides of the base plate (1006) via rotating shafts. The two gears (1008) mesh with each other. A first synchronous pulley (1009) is fixedly connected to the right side surface of the two gears (1008). The first synchronous pulley (1009) is connected to the second synchronous pulley (1012) via a synchronous belt.

7. A protective film winding device according to claim 6, characterized in that: A drive motor (1007) is fixedly connected to the rear left side of the base plate (1006), and the output end of the drive motor (1007) is fixedly connected to the left end of the rear gear (1008) through a coupling.

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