Anti-curling brightness enhancement film winding machine

Abstract

The utility model relates to the technical field of light enhancement film winding machine, and disclose a kind of light enhancement film winding machine of anti-curling, including support, winding roller and motor two, the support inside is equipped with winding roller, winding roller one side shaft end with the motor two output shaft end cooperation connection, and motor two is fixedly connected with support side wall by adapting screw, including anti-curling component, setting in the support inside, the anti-curling component includes pressure device and auxiliary winding device, the pressure device top and support inner wall rotation cooperation, pressure device bottom and winding roller outside top rolling cooperation, the auxiliary winding device is placed in support side wall and deviates from motor two side, still include light enhancement film band, the light enhancement film band passes through support and anti-curling component inside, light enhancement film band is finally wound in winding roller outside, and this winding machine is cooperated by auxiliary winding device and pressure device, effectively prevent light enhancement film band curling and loosening, greatly improve the quality of light enhancement film winding, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of brightness enhancement film winding machines, specifically a brightness enhancement film winding machine that prevents edge curling. Background Technology

[0002] Brightening film, an optical film with a uniform prism pattern, is precisely molded from acrylic resin onto a highly transparent PET surface. It is widely used in many electronic devices such as laptops, LCD monitors, and LCD TVs. After the brightening film is processed, it needs to be wound up for easy transport and other subsequent operations, which requires a brightening film winding machine.

[0003] However, existing brightness enhancement film winding machines have some problems. On the one hand, it is difficult to effectively control the edge curling of the brightness enhancement film during the winding process, which makes the edge of the brightness enhancement film easy to curl, affecting product quality and subsequent use. On the other hand, it is not possible to ensure the tightness of the brightness enhancement film during winding, which is prone to loosening. This may cause the brightness enhancement film to shift or unravel during storage or transportation, which is also not conducive to the subsequent processing of the product. Therefore, we have proposed a brightness enhancement film winding machine with anti-curling function. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an anti-curling brightness enhancement film winding machine, which solves the aforementioned problems.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a brightness enhancement film rewinding machine for preventing edge curling, comprising:

[0006] The bracket, the take-up roller, and the second motor are provided. The take-up roller is provided inside the bracket. One side of the shaft end of the take-up roller is connected to the output shaft end of the second motor. The second motor is fixedly connected to the side wall of the bracket by the adapter screw.

[0007] An anti-winding assembly is disposed inside the bracket. The anti-winding assembly includes a pressure device and an auxiliary winding device. The top of the pressure device is rotatably engaged with the inner wall of the bracket, and the bottom of the pressure device is rollingly engaged with the top of the outer side of the winding roller. The auxiliary winding device is placed on the side wall of the bracket away from the motor.

[0008] The brightness enhancement film tape passes through the bracket and the anti-winding assembly, and is finally wound up on the outside of the take-up roller.

[0009] Preferably, the bracket is provided with multiple conveying rollers inside, and two connecting blocks are provided on the two opposite inner walls of the bracket away from the conveying rollers. An infrared distance sensor is provided at the bottom of the bracket between the conveying rollers and the connecting blocks, and two axially symmetrically distributed mating grooves are provided on the side wall of the bracket corresponding to the top of the infrared distance sensor. The mating grooves are rotatably connected to the two shaft ends of the take-up roller.

[0010] Preferably, the support sidewall is provided with a control frame, the control frame is in an inclined state and is placed between the conveying roller group and the winding roller. The control frame is provided with four guide rods distributed symmetrically on the axis. A mating hole is opened at the center of the top of the control frame, and a sliding groove is opened inside the control frame corresponding to the support sidewall. The sliding groove communicates with the inside of the support.

[0011] Preferably, the auxiliary winding device includes a motor, a slider, and an anti-winding roller. The motor is fixedly connected to the top of the control frame by an adapter screw. The threaded output shaft of the motor passes through a mating hole into the inside of the control frame. The slider is placed inside the control frame, and the anti-winding roller is provided on the side wall of the slider. The anti-winding roller is placed inside the bracket.

[0012] Preferably, each of the four corners of the slider is provided with a sliding cylinder, which is slidably connected to the guide rod. The center of the slider is provided with a threaded bushing, which is threadedly connected to the threaded output shaft of the motor. The side wall of the slider is provided with a mating rod, which is slidably connected to the slide groove.

[0013] Preferably, the anti-winding roller is rotatably engaged with the cooperating rod, and the entire anti-winding roller is placed on the top side of the take-up roller, with the bottom of the outer side of the anti-winding roller being lower than the top of the take-up roller.

[0014] Preferably, the pressure device includes a rotating frame and a pressure roller. The top two opposite sidewalls of the rotating frame are provided with two rotating holes that are symmetrically distributed and are rotatably engaged with the connecting block. The bottom two opposite sidewalls of the rotating frame are provided with two connecting holes that are symmetrically distributed and are rotatably engaged with the two shaft ends of the pressure roller.

[0015] Compared with the prior art, this utility model provides a brightness enhancement film rewinding machine that prevents edge curling, which has the following beneficial effects:

[0016] This anti-curling brightness enhancement film rewinding machine effectively prevents the brightness enhancement film strip from curling and loosening. It uses an infrared distance sensor to monitor the size changes of the brightness enhancement film roll on the rewinding roller in real time, automatically controlling the motor to adjust the position of the anti-curling roller. This ensures that the anti-curling roller and the rewinding roller maintain a suitable distance, guaranteeing that the brightness enhancement film strip remains under control until the very last moment before being rewound, thus avoiding curling. Furthermore, the pressure roller in the pressure device continuously rolls in conjunction with the outer top of the rewinding roller as its size increases, preventing the rewound brightness enhancement film strip from loosening. This significantly improves the quality of brightness enhancement film rewinding, reduces the need for subsequent rework due to curling or loosening, and increases production efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the anti-curling brightening film winding machine of this utility model;

[0018] Figure 2This is a cross-sectional schematic diagram of the anti-curling brightness enhancement film winding machine of this utility model;

[0019] Figure 3 This is a schematic diagram of the bracket of this utility model;

[0020] Figure 4 This is a schematic diagram of the control frame on the outside of the bracket of this utility model;

[0021] Figure 5 This is a schematic diagram of the rotating frame of this utility model;

[0022] Figure 6 This is a schematic diagram of the auxiliary winding device of this utility model.

[0023] In the diagram: 1. Bracket; 2. Motor 1; 3. Slider; 4. Take-up roller; 5. Rotating frame; 6. Pressure roller; 7. Anti-winding roller; 8. Motor 2; 9. Conveyor roller; 10. Brightening film belt; 11. Infrared distance sensor; 12. Connecting block; 13. Mating groove; 14. Slide groove; 15. Control frame; 16. Guide rod; 17. Mating hole; 18. Rotating hole; 19. Connecting hole; 20. Threaded bushing; 21. Slide cylinder; 22. Mating rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-6 This utility model provides a technical solution;

[0026] A brightness enhancement film rewinding machine with anti-curling features, comprising:

[0027] The bracket 1, the take-up roller 4, and the second motor 8 are provided. The take-up roller 4 is provided inside the bracket 1. The shaft end of the take-up roller 4 is connected to the output shaft end of the second motor 8. The second motor 8 is fixedly connected to the side wall of the bracket 1 by the adapter screw.

[0028] An anti-winding assembly is installed inside the bracket 1. The anti-winding assembly includes a pressure device and an auxiliary winding device. The top of the pressure device is rotatably engaged with the inner wall of the bracket 1, and the bottom of the pressure device is rollingly engaged with the top of the outer side of the winding roller 4. The auxiliary winding device is placed on the side wall of the bracket 1 away from the motor 8.

[0029] Brightening film 10 passes through the bracket 1 and the inside of the anti-winding assembly, and finally the brightening film 10 is wound up on the outside of the take-up roller 4.

[0030] Furthermore, the bracket 1 is equipped with multiple conveying rollers 9 inside, and two connecting blocks 12 are provided on the two opposite inner walls of the bracket 1 away from the conveying rollers 9. An infrared distance sensor 11 is provided at the bottom of the bracket 1 between the conveying rollers 9 and the connecting blocks 12, and two axially symmetrical mating grooves 13 are provided on the side wall of the bracket 1 at the top of the infrared distance sensor 11. The mating grooves 13 are rotatably connected to the two shaft ends of the take-up roller 4. The conveying rollers 9 set plays a conveying role, and can achieve tension adjustment with specific external devices.

[0031] Furthermore, the side wall of the support 1 is provided with a control frame 15. The control frame 15 is in an inclined state and is placed between the conveying roller 9 and the winding roller 4. The control frame 15 has four guide rods 16 distributed axially symmetrically inside. The control frame 15 has a mating hole 17 at the top center and a sliding groove 14 corresponding to the side wall of the support 1 inside. The sliding groove 14 communicates with the inside of the support 1.

[0032] Furthermore, the auxiliary winding device includes a motor 2, a slider 3, and an anti-winding roller 7. The motor 2 is fixedly connected to the top of the control frame 15 by an adapter screw. The threaded output shaft of the motor 2 passes through the mating hole 17 into the inside of the control frame 15. The slider 3 is placed inside the control frame 15. The anti-winding roller 7 is provided on the side wall of the slider 3. The anti-winding roller 7 is placed inside the bracket 1. When the winding operation is performed, the brightening film 10 passes around the conveyor roller 9 group. After passing around the anti-winding roller 7, it is wound on the outside of the winding roller 4.

[0033] Furthermore, each of the four corners of the slider 3 is provided with a sliding cylinder 21, which is slidably connected to the guide rod 16. The center of the slider 3 is provided with a threaded bushing 20, which is threadedly connected to the threaded output shaft of the motor 2. The side wall of the slider 3 is provided with a mating rod 22, which is slidably connected to the slide groove 14. During the winding process, as the outer dimension of the winding roller 4 gradually increases, the infrared distance sensor 11 can detect its dimension in real time and feed it back to the control system, which then controls the motor 2 to drive the slider 3 to tilt and move, so that the anti-winding roller 7 and the winding roller 4 always maintain a certain distance, and the distance between the two remains unchanged.

[0034] Furthermore, the anti-winding roller 7 is rotatably engaged with the cooperating rod 22, and the anti-winding roller 7 is placed on the top side of the take-up roller 4. The bottom of the outer side of the anti-winding roller 7 is lower than the top of the take-up roller 4. The fact that the bottom of the outer side of the anti-winding roller 7 is lower than the top of the take-up roller 4 ensures that the brightness enhancement film 10 is still under control at the last moment before it is wound up by the take-up roller 4, preventing it from curling. The distance between the bottom of the outer side of the anti-winding roller 7 and the top of the take-up roller 4 remains unchanged.

[0035] Furthermore, the pressure device includes a rotating frame 5 and a pressure roller 6. The top two opposite side walls of the rotating frame 5 are provided with two rotating holes 18 that are symmetrically distributed. The rotating holes 18 are rotatably engaged with the connecting block 12. The bottom two opposite side walls of the rotating frame 5 are provided with two connecting holes 19 that are symmetrically distributed. The connecting holes 19 are rotatably engaged with the two shaft ends of the pressure roller 6. As the outer dimension of the take-up roller 4 gradually increases, the rotating frame 5 rotates. The pressure roller 6 always maintains a rolling engagement with the top outer side of the take-up roller 4 to prevent the wound brightening film belt 10 from loosening.

[0036] Structural Description:

[0037] Support 1: It is the overall support structure of the winding machine. It contains components such as winding roller and conveyor roller 9. The side wall is also equipped with motor 2 8 and control frame 15, providing a foundation for the installation and operation of each component.

[0038] Motor 12: It is fixed to the top of the control frame 15 by an adapter screw. Its threaded output shaft passes into the inside of the control frame 15 and can drive the slider 3 to move, thereby adjusting the position of the anti-rolling roller 7.

[0039] Slider 3: It is placed inside the control frame 15, with slide cylinders 21 at the four corners, a threaded bushing 20 in the center, and a mating rod 22 on the side wall. It can tilt and move under the drive of motor 12.

[0040] Take-up roller 4: Located inside the bracket 1, one side of the shaft end is connected to the output shaft end of motor 2 8, and can rotate under the drive of motor 2 8, used to take up the brightness enhancement film belt 10;

[0041] Rotating frame 5: There are rotating holes 18 on the two opposite side walls at the top and connecting holes 19 on the two opposite side walls at the bottom. It can rotate and engage with the connecting block 12 through the rotating holes 18, and rotate with the size of the winding roller 4.

[0042] Pressure roller 6: The two shaft ends are rotatably engaged with the connecting holes 19 at the bottom of the rotating frame 5, and are always rollingly engaged with the top outer side of the winding roller 4 to prevent the winding brightening film belt 10 from loosening.

[0043] Anti-rolling roller 7: Rotary engagement with the mating rod 22 on the side wall of the slider 3, placed on the top side of the take-up roller 4, with the bottom of the outer side lower than the top of the take-up roller 4, to prevent the brightening film belt 10 from curling.

[0044] Motor 28: It is fixedly connected to the side wall of bracket 1 by adapter screws, and the output shaft end is connected to the shaft end of one side of take-up roller 4 to provide power for the rotation of take-up roller 4;

[0045] Conveyor rollers 9: Multiple rollers are provided and placed inside the bracket 1. They can convey the brightness enhancement film belt 10. With the help of a specific external device, the tension of the brightness enhancement film belt 10 can also be adjusted.

[0046] Brightening film belt 10: It needs to pass through the bracket 1 and the inside of the anti-winding assembly, first around the conveyor roller 9, then around the anti-winding roller 7, and finally be wound up on the outside of the winding roller 4. It is the object to be processed by the winding machine.

[0047] Infrared distance sensor 11: Located inside the bracket 1 at the bottom between the conveyor roller 9 and the connecting block 12, it can detect the size change of the brightening film roll on the outside of the take-up roller 4 in real time and provide feedback information.

[0048] Connecting blocks 12: There are two of them, located on the two opposite inner walls of the bracket 1, away from the conveyor roller 9. They can rotate and engage with the rotating hole 18 at the top of the rotating frame 5 to provide support for the rotating frame 5.

[0049] Matching groove 13: There are two grooves and they are symmetrically distributed on the side wall of the bracket 1, corresponding to the top of the infrared distance sensor 11. They are rotatably connected to the two shaft ends of the winding roller 4 to support the rotation of the winding roller 4.

[0050] Slide 14: Located inside the control frame 15 at the side wall of the corresponding support 1, communicating with the inside of the support 1, and can slide with the mating rod 22 on the side wall of the slider 3 to guide the slider 3 to move;

[0051] Control frame 15: The whole frame is inclined and is located between the conveyor roller 9 and the winding roller 4. It has a guide rod 16 inside and a mating hole 17 at the top center to provide installation and movement space for the slider 3, etc.

[0052] Guide rods 16: There are four of them, which are symmetrically distributed on an axis. They are located inside the control frame 15 and are slidably connected to the slide cylinders 21 at the four corners of the slider 3 to guide the slider 3 to move stably.

[0053] Matching hole 17: It is opened at the top center of the control frame 15, and the threaded output shaft of the power supply motor 2 passes into the inside of the control frame 15, so that the motor 2 can drive the slider 3;

[0054] Rotating holes 18: There are two holes that are symmetrically distributed on the two opposite side walls of the top of the rotating frame 5. They are rotatably engaged with the connecting block 12, so that the rotating frame 5 can rotate around the connecting block 12.

[0055] Connection holes 19: There are two holes, which are symmetrically distributed on the two opposite side walls at the bottom of the rotating frame 5. They are rotatably engaged with the two shaft ends of the pressure roller 6, so that the pressure roller 6 can rotate flexibly.

[0056] Threaded bushing 20: Located at the center of slider 3, it is threadedly driven by the threaded output shaft of motor 2, and can convert the rotational motion of motor 2 into the linear motion of slider 3.

[0057] Slide cylinder 21: There are four of them, which are respectively located at the four corners of the slider 3. They are slidably connected to the guide rod 16 inside the control frame 15 to reduce friction when the slider 3 moves and ensure smooth movement.

[0058] Matching rod 22: Located on the side wall of slider 3, one end is connected to slider 3, and the other end is rotatably matched with anti-winding roller 7. At the same time, it is slidably matched with slide groove 14 in control frame 15, driving anti-winding roller 7 to move.

[0059] Working Principle: The anti-curling brightness enhancement film winding machine is correctly installed according to the diagram. In this machine, the bracket 1 serves as the overall support structure. The brightness enhancement film belt 10 passes through the inside of the bracket 1 and first contacts multiple conveyor rollers 9. The conveyor rollers 9 convey the brightness enhancement film belt 10 and, in conjunction with a specific external device, adjust the tension. Subsequently, the brightness enhancement film belt 10 passes around the anti-curling roller 7. At this time, motor 2 8 starts, driving the winding roller 4 to rotate and begin winding the brightness enhancement film belt 10. During the winding process, as the size of the brightness enhancement film roll outside the winding roller 4 gradually increases, the infrared distance sensor 11 at the bottom between the conveyor roller 9 and the connecting block 12 inside the bracket 1 detects the size change in real time and feeds the information back to the control system. The control system controls motor 2 to operate. The threaded output shaft of motor 2 passes through the mating hole 17 into the control... Inside the frame 15, the sliding cylinders 21 at the four corners of the slider 3 are slidably connected to the guide rods 16 inside the control frame 15, and the threaded bushing 20 at the center of the slider 3 is threadedly connected to the threaded output shaft of the motor 12. The mating rod 22 on the side wall of the slider 3 is slidably connected to the sliding groove 14 inside the control frame 15. Therefore, the rotation of the motor 12 drives the slider 3 to tilt and move, thereby keeping the anti-winding roller 7 and the take-up roller 4 at a certain distance, and the distance between them remains unchanged. At the same time, the rotating holes 18 on the two opposite side walls at the top of the rotating frame 5 in the pressure device are rotatably connected to the connecting block 12. As the size of the take-up roller 4 increases, the rotating frame 5 rotates, and the connecting holes 19 on the two opposite side walls at the bottom of the frame are rotatably connected to the two shaft ends of the pressure roller 6, so that the pressure roller 6 always maintains rolling contact with the top outer side of the take-up roller 4, preventing the wound brightening film belt 10 from loosening.

[0060] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A brightness enhancement film rewinding machine with anti-curling properties, characterized in that, include: The bracket (1), the take-up roller (4) and the second motor (8) are provided inside the bracket (1). The take-up roller (4) is connected to the output shaft of the second motor (8) on one side. The second motor (8) is fixedly connected to the side wall of the bracket (1) by the adapter screw. An anti-winding assembly is set inside the bracket (1). The anti-winding assembly includes a pressure device and an auxiliary winding device. The top of the pressure device is rotatably engaged with the inner wall of the bracket (1), and the bottom of the pressure device is rolledly engaged with the top of the outer side of the winding roller (4). The auxiliary winding device is placed on the side wall of the bracket (1) away from the motor (8). Brightening film tape (10) passes through the bracket (1) and the inside of the anti-winding assembly, and the brightening film tape (10) is finally wound up on the outside of the winding roller (4).

2. The anti-curling brightening film rewinding machine according to claim 1, characterized in that, The bracket (1) is provided with multiple conveying rollers (9) inside, and two connecting blocks (12) are provided on the two opposite inner walls of the bracket (1) away from the conveying rollers (9). An infrared distance sensor (11) is provided at the bottom between the conveying rollers (9) and the connecting blocks (12) inside the bracket (1), and two axially symmetrical mating grooves (13) are provided on the top of the side wall of the bracket (1) corresponding to the infrared distance sensor (11). The mating grooves (13) are rotatably connected to the two shaft ends of the winding roller (4).

3. The anti-curling brightening film rewinding machine according to claim 2, characterized in that, The support (1) has a control frame (15) on its side wall. The control frame (15) is tilted and is placed between the conveying roller (9) group and the winding roller (4). The control frame (15) has four guide rods (16) distributed symmetrically on the axis. The control frame (15) has a mating hole (17) at the top center and a sliding groove (14) corresponding to the side wall of the support (1) is provided inside the control frame (15). The sliding groove (14) is connected to the inside of the support (1).

4. The anti-curling brightening film rewinding machine according to claim 1, characterized in that, The auxiliary winding device includes a motor (2), a slider (3), and an anti-winding roller (7). The motor (2) is fixedly connected to the top of the control frame (15) by an adapter screw. The threaded output shaft of the motor (2) passes through the mating hole (17) into the control frame (15). The slider (3) is placed inside the control frame (15). The anti-winding roller (7) is provided on the side wall of the slider (3). The anti-winding roller (7) is placed inside the bracket (1).

5. A brightness enhancement film rewinding machine for preventing edge curling according to claim 4, characterized in that, The slider (3) is provided with a slide cylinder (21) at each of its four corners. The slide cylinder (21) is slidably connected to the guide rod (16). The center of the slider (3) is provided with a threaded bushing (20). The threaded bushing (20) is threadedly connected to the threaded output shaft of the motor (2). The side wall of the slider (3) is provided with a mating rod (22). The mating rod (22) is slidably connected to the slide groove (14).

6. A brightness enhancement film rewinding machine for preventing edge curling according to claim 4, characterized in that, The anti-winding roller (7) is rotatably engaged with the cooperating rod (22), and the anti-winding roller (7) is placed on the top side of the take-up roller (4), with the bottom of the outer side of the anti-winding roller (7) lower than the top of the take-up roller (4).

7. A brightness enhancement film rewinding machine according to claim 1, characterized in that, The pressure device includes a rotating frame (5) and a pressure roller (6). The top two opposite side walls of the rotating frame (5) are provided with two rotating holes (18) that are symmetrically distributed. The rotating holes (18) are rotatably engaged with the connecting block (12). The bottom two opposite side walls of the rotating frame (5) are provided with two connecting holes (19) that are symmetrically distributed. The connecting holes (19) are rotatably engaged with the two shaft ends of the pressure roller (6).

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