Extension mechanism for production of anti-blue-light protective film
The automated tension adjustment and uniform hot air spraying controlled by electric actuators and drive motors have solved the problem of inconvenient tension adjustment in the production of anti-blue light protective films, improving production efficiency and product quality, and meeting the requirements of high-precision production.
Patent Information
- Application Number
- CN202423086366.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-13
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-12-13
AI Technical Summary
The existing stretching mechanism used in the production of anti-blue light protective film relies on manual tension adjustment, which makes tension adjustment inconvenient, leads to low production efficiency and unstable product quality, and is difficult to meet modern high-efficiency and high-precision production requirements.
An electric actuator is used to drive the push rod to adjust the tension of the take-up roller, and the oscillation of the heat sprayer is controlled by a drive motor to achieve uniform spraying of hot air, ensuring uniform extension of the protective film. Combined with automatic adjustment and uniform heating, the accuracy of tension control and the uniformity of heating are improved.
It achieves rapid tension adjustment and uniform heating during the production process of blue light blocking protective film, improving production efficiency and product quality stability, and ensuring the optical and mechanical properties of the film.
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Figure CN223467995U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the production technical field of protection film especially relates to a production of anti -blue light protection film is with extension mechanism. BACKGROUND
[0002] In the era of the wide popularization of electronic equipment, the demand for anti-blue light protection film is growing rapidly, and its production process involves multiple key processes. As an important component, the extension mechanism plays a decisive role in the quality of the final product. The extension mechanism for the production of anti-blue light protection film needs to accurately control the extension process of the protection film under different production conditions to ensure that the performance indicators of the film meet the requirements, such as tension uniformity, heating uniformity, etc. At the same time, it also needs to take into account the production efficiency to meet the needs of large-scale production. With the continuous development of technology, the requirements for the optical performance, mechanical performance and dimensional accuracy of anti-blue light protection film are becoming increasingly stringent, which prompts the extension mechanism to be continuously innovated and optimized to meet market demand and improve product competitiveness.
[0003] The existing extension mechanism for the production of anti-blue light protection film usually uses a relatively simple mechanical structure to adjust the tension, for example, relying on manual adjustment of screws or knobs to change the position of the winding roller to control the tension. In terms of heating, a fixed-position heating pipe or a simple air heater is often used to heat the protection film from a single direction. The heating pipe is usually evenly distributed on one side or the bottom of the heating chamber, and the air heater is fixed at a certain angle to continuously blow hot air. The technical principle is mainly through direct contact and fixed heat transfer of mechanical components to try to make the protection film meet the extension requirements.
[0004] However, this traditional extension mechanism has many drawbacks. Since it relies on manual adjustment of tension, the operation process is tedious and time-consuming, and it is difficult to quickly and accurately adjust the tension to the appropriate value, which often leads to overstretching or insufficient stretching of the anti-blue light protection film due to untimely or inaccurate tension adjustment. Overstretching can cause the film to break, and insufficient stretching can result in substandard dimensional accuracy of the film, making it unable to tightly fit the screen of the electronic equipment. Moreover, this unstable tension control can also affect the internal structure of the film, causing the molecular chain to become disordered, which in turn reduces the optical and mechanical properties of the film, ultimately resulting in unstable product quality and low production efficiency, which cannot meet the requirements of modern high-efficiency and high-precision production. Therefore, an extension mechanism for the production of anti-blue light protection film is proposed to solve the above problems. SUMMARY
[0005] To make up for the above shortcomings, the utility model provides an extension mechanism for the production of anti-blue light protection film, aiming to improve the problem of low production efficiency and unstable product quality caused by inconvenient tension adjustment in the prior art.
[0006] In order to achieve the above object, the utility model adopts the following technical scheme:
[0007] A kind of production of anti-blue light protective film is stretched mechanism, including bottom plate, the bottom plate top is provided with collection component, the collection component is used to collect anti-blue light protective film, the collection component left side is provided with heating component, the heating component is used to make the molecular chain of protective film material more active by heating, reduce the hardness and toughness of material, so that it is easier to stretch out;
[0008] The collection component includes protective box, the protective box bottom is fixedly connected at the bottom plate top, the protective box left and right outer walls are all provided with movable slot, the movable slot inner wall is all slidably connected with limiting roller, the limiting roller is fixedly connected with rotating column in inner portion, the rotating column outer wall is fixedly connected with winding roller, the winding roller left and right sides are all rotatably connected with connecting plate, the protective box inner wall one side is provided with electric pusher, the electric pusher is located at the opposite side of winding roller, the electric pusher output is fixedly connected with push rod, the push rod one end is provided with adjusting spring, the adjusting spring one end is fixedly connected in the push rod side wall, the adjusting spring other end is fixedly connected with connecting seat, the connecting seat side wall is fixedly connected in the connecting plate side wall;
[0009] As further description of the above technical scheme:
[0010] The bottom plate top is provided with unwinding roller, the unwinding roller is located at the right side of heating component, the unwinding roller and winding roller are left-right symmetrical and distributed on the bottom plate top, the unwinding roller left and right sides outer walls are all rotatably connected with support arm, and the support arm bottom is fixedly connected on the bottom plate top;
[0011] As further description of the above technical scheme:
[0012] The heating component includes heating box, the heating box bottom is fixedly connected at the bottom plate top, and the heating box is located between the winding roller and unwinding roller, and the heating box left and right sides are all provided with membrane slot;
[0013] As further description of the above technical scheme:
[0014] A plurality of stretching rollers are rotatably connected to the inner wall of the heating box, the stretching rollers are distributed in a front and back high-low manner on the inner wall of the heating box, and the left stretching roller is higher than the right stretching roller in position;
[0015] As further description of the above technical scheme:
[0016] A plurality of connecting base platforms are provided on the top of the inner wall of the heating box, the connecting base platforms are distributed in an array manner on the top of the inner wall of the heating box, a plurality of supporting plates are provided in the connecting base platforms, and the supporting plates are distributed in an array manner in the connecting base platforms.
[0017] As a further description of the above technical solutions:
[0018] The top of the supporting plate is fixedly connected with a driving motor, the outer wall of the driving motor is fixedly connected in the connecting base, the output end of the driving motor is fixedly connected with a rotating arm, the output end of the driving motor penetrates through the inside of the supporting plate, the bottom of the supporting plate is fixedly connected with connecting arms on the left and right sides, and the inner wall between the connecting arms is fixedly connected with a fixing rod.
[0019] As a further description of the above technical solutions:
[0020] The outer wall of the fixing rod is slidably connected with left-right symmetrical swing arms, the fixing rod is located at the lower position of the swing arms, the upper position of the swing arms is fixedly connected with slide columns, the outer wall of the slide column is slidably connected with a rotating seat, the top of the rotating seat is rotatably connected with a connecting rod, and the inner wall of the rotating arm is rotatably connected with the top of the connecting rod.
[0021] As a further description of the above technical solutions:
[0022] The bottom of the fixing rod is fixedly connected with a connecting block, the bottom of the connecting block is fixedly connected with a heat sprayer, the side wall of the heat sprayer is fixedly connected with a gas conveying belt, and the top of the gas conveying belt is fixedly connected in the inside of the connecting base.
[0023] The utility model has the following beneficial effects:
[0024] 1、in the utility model, electric pusher drives push rod to move, make adjustment spring produce displacement, and then drive connecting seat and connecting plate move together, make the two sides of the winding roller limit the roller to slide in the inner wall of the movable groove, thereby adjust the tension quickly, the problem that production efficiency is low and product quality is unstable due to tension adjustment inconvenience is solved, and the tension control precision in the production process of anti-blue light protective film is improved.
[0025] 2、in the utility model, driving motor drives rotating arm to rotate, and through connecting rod and other components, the heat sprayer swings back and forth, hot gas is transmitted to the heat sprayer through the gas conveying belt, and is sprayed on the protective film in a laminated manner, so that the molecular chain of the protective film is uniformly stretched, local abnormal stretching is avoided, the problem that product quality is uneven due to uneven heating is solved, and the production quality and performance of anti-blue light protective film are improved. DRAWINGS
[0026] Figure 1 A three-dimensional schematic view of the stretching mechanism for anti-blue light protective film production is provided for the utility model;
[0027] Figure 2 An adjustment spring structure schematic view of the stretching mechanism for anti-blue light protective film production is provided for the utility model;
[0028] Figure 3 The utility model provides a kind of extension mechanism's spray heater structural schematic view for the production of anti-blue light protective film.
[0029] Legend:
[0030] 1, base plate;2, heating box;3, unwinding roller;4, support arm;5, protection box;6, winding roller;7, rotating column;8, limit gyro wheel;9, connecting plate;10, movable slot;11, electric pusher;12, push rod;13, adjusting spring;14, connecting seat;15, membrane slot;16, extension roller;17, connecting base;18, support plate;19, driving motor;20, connecting arm;21, rotating arm;22, connecting rod;23, rotating seat;24, slide column;25, swing arm;26, fixed rod;27, connecting block;28, spray heater;29, gas conveying belt. Specific embodiments
[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0032] Reference Figure 1 and Figure 2The utility model provides an embodiment: an extension mechanism for producing an anti-blue light protective film, comprising a base plate 1. The base plate 1 is a basic supporting component of the entire mechanism and is made of a sturdy metal material with certain anti-corrosion properties. Its main function is to provide a stable and horizontal installation base for other components to ensure that the entire extension mechanism will not affect the production accuracy due to the shaking of the base during operation. A collecting component is provided on the top of the base plate 1, and the collecting component is used to collect the anti-blue light protective film. A heating component is provided on the left side of the collecting component, and the heating component is used to make the molecular chain of the protective film material more active by heating, thereby reducing the hardness and toughness of the material, thereby making it easier to extend.The assembly includes a protective box 5 made of hard engineering plastic, which mainly provides a protective shell environment for the winding roller 6 and its related adjusting components, reduces the interference of external dust and other impurities on the winding process, and ensures the safety of the operator. The bottom of the protective box 5 is fixedly connected to the top of the bottom plate 1. The left and right outer walls of the protective box 5 are provided with movable grooves 10. The inner walls of the movable grooves 10 are slidably connected with limiting rollers 8. The limiting rollers 8 are made of high-strength wear-resistant rubber material. The limiting rollers 8 are fixedly connected with rotating columns 7 inside. The rotating columns 7 are made of stainless steel material. The rotating columns 7 are fixedly connected with winding rollers 6 on the outer walls. The winding rollers 6 are made of aluminum alloy material with light weight and good rigidity. The left and right sides of the winding rollers 6 are rotatably connected with connecting plates 9. The connecting plates 9 are made of metal plate material and are mainly used to connect the winding roller 6 and the adjusting spring 13 and other components to realize force transmission and adjustment of the position of the winding roller 6. One side of the inner wall of the protective box 5 is provided with an electric pusher 11. The electric pusher 11 serves as a power source and can accurately control the extension and retraction of the push rod 12. The electric pusher 11 is located on the opposite side of the winding roller 6. The output end of the electric pusher 11 is fixedly connected with a push rod 12. One end of the push rod 12 is provided with an adjusting spring 13. One end of the adjusting spring 13 is fixedly connected to the side wall of the push rod 12. The other end of the adjusting spring 13 is fixedly connected with a connecting seat 14. The elastic deformation of the adjusting spring 13 can buffer and adjust the pushing force transmitted by the electric pusher 11, so that the tension adjustment of the winding roller 6 is more stable. The side wall of the connecting seat 14 is fixedly connected to the side wall of the connecting plate 9. The top of the bottom plate 1 is provided with a unwinding roller 3. The unwinding roller 3 is composed of a metal roller core and an outer rubber layer. The rubber layer can increase the friction with the protective film and avoid damaging the protective film. The unwinding roller 3 is located on the right side of the heating assembly. The unwinding roller 3 and the winding roller 6 are distributed in a left-right symmetrical manner on the top of the bottom plate 1. The left and right outer walls of the unwinding roller 3 are rotatably connected with support arms 4. The support arms 4 are mainly used to support the unwinding roller 3 and enable it to rotate smoothly for unwinding operation. The bottom of the support arm 4 is fixedly connected to the top of the bottom plate 1. The heating assembly includes a heating box 2. The heating box 2 is composed of a material with good heat insulation performance, such as rock wool board and metal shell, which can reduce heat loss and prevent the operator from being scalded. The bottom of the heating box 2 is fixedly connected to the top of the bottom plate 1. The heating box 2 is located between the winding roller 6 and the unwinding roller 3. The left and right sides of the heating box 2 are provided with film passing grooves 15. The edges of the film passing grooves 15 are treated with smoothing to avoid scratching the protective film. The inner wall of the heating box 2 is rotatably connected with a plurality of stretching rollers 16. The stretching rollers 16 are made of ceramic coated metal rollers with high temperature resistance and smooth surface. The stretching rollers 16 are distributed in a front and back staggered manner on the inner wall of the heating box 2. The left stretching roller 16 is higher than the right stretching roller 16. This staggered arrangement forms a specific stretching path for the protective film when it passes through the heating box 2, achieving better stretching effect.
[0033] Specifically, in use of the stretching mechanism, first, the end of the un-stretched anti-blue-ray protective film above the unwinding roller 3 is stretched from the film passing groove 15 of the side wall of the heating box 2, at this time, the operator manually pulls the protective film to the right stretching roller 16 and passes below it, in this process, the protective film moves left along the lower surface of the stretching roller 16, then passes above the left stretching roller 16, where the protective film changes the moving direction and moves upward, finally, the protective film is stretched from the other film passing groove 15 and wound on the outer wall of the winding roller 6. At this time, the electric pusher 11 on the side wall of the heating box 2 receives the control signal and starts to work, the motor inside the electric pusher 11 drives the push rod 12 to move horizontally, if it is needed to increase the tension of the winding roller 6, the electric pusher 11 pushes the push rod 12 to move forward, if it is needed to reduce the tension, the electric pusher 11 pushes the push rod 12 in the opposite direction. In the process of displacement of the push rod 12, the adjusting spring 13 is compressed or stretched horizontally, the displacement of the adjusting spring 13 drives the connecting seat 14 to move horizontally, the connecting seat 14 in turn drives the connecting plate 9 fixedly connected thereto to move horizontally, the displacement of the connecting plate 9 drives the limiting rollers 8 on both sides of the winding roller 6 to slide up and down in the inner wall of the movable groove 10 along the direction of the movable groove 10, thereby completing the rapid adjustment of the tension. The winding roller 6 rotates under the drive of the motor and rotates to collect the anti-blue-ray protective film according to the set tension, in the winding process, the unwinding roller 3 rotates in the opposite direction to perform the unwinding operation under the traction of the protective film, and the protective film is gradually stretched and stretched while being heated in the heating box 2, so as to achieve the effect of rapidly adjusting the tension of the winding roller 6, which can make the equipment compatible with various anti-blue-ray protective film materials.
[0034] Reference Figure 3A plurality of connecting bases 17 are arranged on the top of the inner wall of the heating box 2, which are made of aluminum alloy and mainly serve to provide a stable mounting base and positioning for the driving motor 19 and its related transmission components, so as to ensure the accurate and stable relative position of the components during operation. The connecting bases 17 are arranged in an array on the top of the inner wall of the heating box 2. A plurality of support plates 18 are arranged inside the connecting bases 17, which are made of metal plates and have the driving motor 19 fixedly connected to the top thereof. The driving motor 19 is fixedly connected to the outer wall of the connecting bases 17. The support plates 18 serve to bear and fix the driving motor 19, so as to prevent the motor from being displaced during operation. The support plates 18 are arranged in an array inside the connecting bases 17. The driving motor 19 is fixedly connected to the top of the support plates 18. The driving motor 19 serves as a power source and can accurately control the rotation angle and speed of the rotating arm 21 according to a control signal. The driving motor 19 is fixedly connected to the outer wall of the connecting bases 17. The driving motor 19 has the rotating arm 21 fixedly connected to the output end thereof. The output end of the driving motor 19 penetrates through the inside of the support plate 18. The support plates 18 have the connecting arms 20 fixedly connected to the bottom and left and right sides thereof. The connecting arms 20 have the fixing rod 26 fixedly connected to the inner wall thereof. The fixing rod 26 has the left and right symmetrical swing arms 25 slidingly connected to the outer wall thereof. The fixing rod 26 is located below the swing arms 25. The swing arms 25 have the slide column 24 fixedly connected to the upper side thereof. The slide column 24 has the rotating seat 23 slidingly connected to the outer wall thereof. The rotating seat 23 has the connecting rod 22 rotatably connected to the top thereof. The connecting rod 22 is used to transmit the rotating power of the rotating arm 21 and convert it into the sliding and rotating actions of the slide column 24. The connecting rod 22 is rotatably connected to the inner wall of the rotating arm 21. The fixing rod 26 has the connecting block 27 fixedly connected to the bottom thereof. The connecting block 27 has the heat sprayer 28 fixedly connected to the bottom thereof. The heat sprayer 28 is made of high-temperature-resistant metal material and has a heating wire and an air duct structure inside, which can heat and spray the input gas. The heat sprayer 28 has the gas conveying belt 29 fixedly connected to the side wall thereof. The gas conveying belt 29 is fixedly connected to the inside of the connecting bases 17. The gas conveying belt 29 is made of heat-resistant rubber and metal pipeline and is used to convey hot gas to the heat sprayer 28.
[0035] Specifically, when the anti-blue light protective film is located in the heating box 2, the driving motors 19 arranged in an array inside the plurality of connecting bases 17 at the top of the heating box 2 start to operate after receiving the control instruction. The driving motors 19 rotate at a set speed and direction to drive the rotating arm 21 to rotate in a circle. The rotation of the rotating arm 21 transmits power through the connecting rod 22. Since the connecting rod 22 is rotatably connected to the inner wall of the rotating arm 21 at the top and rotatably connected to the top of the rotating seat 23 at the bottom, when the rotating arm 21 rotates, it will drive the connecting rod 22 to move in a circle with the connecting point of the rotating arm 21 as the center, thereby pushing the rotating seat 23 to reciprocally slide on the surface of the slide column 24 along the axial direction of the slide column 24. Since the bottom of the swing arm 25 connected on both sides of the slide column 24 is rotatably connected to the inner wall of the connecting arm 20 on both sides through the fixed rod 26, when the slide column 24 is reciprocally slid by the rotating seat 23, the slide column 24 will rotate around the fixed rod 26, thereby driving the fixed rod 26 to reciprocally swing around its axis. The swing of the fixed rod 26 drives the synchronously swinging of the connecting block 27 fixedly connected to the bottom of the fixed rod 26, and the connecting block 27 in turn drives the bottom heater 28 to synchronously swing. At the same time, the hot gas is transmitted to the heater 28 through the gas conveying belt 29. During the swinging process of the heater 28, the heating wire inside the heater 28 heats the input gas, and the heated gas is sprayed from the nozzle of the heater 28. The back-and-forth swinging of the heater 28 makes the hot gas sprayed on the anti-blue light protective film below in a layered manner, thereby achieving the effect of uniformly controlling the hot air inside the heating box 2. The uniform heat can make the molecular chains in the anti-blue light protective film stretch at a similar rate at each part, avoiding the situation of excessive stretching or insufficient stretching of local molecular chains.
[0036] Working principle: when using the stretching mechanism, first, the end of the un-stretched anti-blue light protective film above the unwinding roller 3 is inserted from the film passing groove 15 of the heating box 2 side wall, passes below the right stretching roller 16, passes above the left stretching roller 16, and finally extends from the other film passing groove 15 and is wound on the outer wall of the winding roller 6. At this time, the electric pusher 11 on the side wall of the heating box 2 drives the push rod 12 to displace. In the displacement process of the push rod 12, the adjusting spring 13 is displaced, and the displacement of the adjusting spring 13 drives the connecting seat 14 and the connecting plate 9 to displace. The displacement of the connecting plate 9 causes the limiting rollers 8 on both sides of the winding roller 6 to slide in the inner wall of the movable groove 10, so that the rapid adjustment of the tension is completed. When the winding roller 6 rotates, it rotates to collect the anti-blue light protective film according to the set tension, so as to achieve the effect of rapidly adjusting the tension of the winding roller 6, and the equipment can be compatible with various anti-blue light protective film materials. When the anti-blue light protective film is in the heating box 2, the driving motor 19 arranged in the array inside the plurality of connecting base tables 17 on the top of the heating box 2 rotates to drive the rotating arm 21 to rotate. The rotation of the rotating arm 21 drives the rotating seat 23 to reciprocally slide on the surface of the slide column 24 through the connecting rod 22. Due to the rotation of the fixed rod 26 connected to the bottom of the swing arm 25 on both sides through the connecting arm 20 on the inner wall of the left and right sides, the slide column 24 drives the fixed rod 26 to reciprocally swing, and the fixed rod 26 drives the connecting block 27 and the heat sprayer 28 at the bottom to swing synchronously. At the same time, the hot gas is transmitted to the heat sprayer 28 through the gas conveying belt 29. The back-and-forth swinging of the heat sprayer 28 makes the hot gas be sprayed on the anti-blue light protective film below in a layered manner, so as to achieve the effect of uniformly controlling the hot air in the heating box 2. The uniform heat can make the molecular chains in the anti-blue light protective film stretch at similar rates in each part, avoiding the situation of excessive stretching or insufficient stretching of local molecular chains.
[0037] Finally, it should be noted that: the above only describes preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A stretching mechanism for producing a blue light protection film, comprising a base plate (1), characterized in that: The bottom plate (1) top is provided with a collection assembly, the collection assembly is used for collecting the anti-blue light protective film, the left side of the collection assembly is provided with a heating assembly, the heating assembly is used for heating to make the molecular chain of the protective film material more active, reduce the hardness and toughness of the material, so that it is easier to spread; The collection assembly includes a protective box (5), the bottom of the protective box (5) is fixedly connected to the top of the bottom plate (1), the left and right outer walls of the protective box (5) are provided with movable grooves (10), the inner walls of the movable grooves (10) are slidably connected with limiting rollers (8), the limiting rollers (8) are fixedly connected with rotating columns (7) inside, the rotating columns (7) are fixedly connected with winding rollers (6) outside, the left and right sides of the winding rollers (6) are rotatably connected with connecting plates (9), one side of the inner wall of the protective box (5) is provided with an electric pusher (11), the electric pusher (11) is located on the opposite side of the winding roller (6), the output end of the electric pusher (11) is fixedly connected with a push rod (12), one end of the push rod (12) is provided with an adjusting spring (13), one end of the adjusting spring (13) is fixedly connected to the side wall of the push rod (12), the other end of the adjusting spring (13) is fixedly connected with a connecting seat (14), the side wall of the connecting seat (14) is fixedly connected to the side wall of the connecting plate (9).
2. The stretching mechanism for the production of anti-blue-ray protective film according to claim 1, characterized in that: The bottom plate (1) top is provided with a collection assembly, the collection assembly is used for collecting the anti-blue light protective film, the left side of the collection assembly is provided with a heating assembly, the heating assembly is used for heating to make the molecular chain of the protective film material more active, reduce the hardness and toughness of the material, so that it is easier to spread; 3. The stretching mechanism for the production of anti-blue-ray protective film according to claim 1, characterized in that: The heating assembly includes a heating box (2), the bottom of the heating box (2) is fixedly connected to the top of the bottom plate (1), the heating box (2) is located between the winding roller (6) and the unwinding roller (3), the left and right sides of the heating box (2) are provided with film passing grooves (15).
4. The stretching mechanism for producing a blue-ray protection film according to claim 3, wherein: The inner wall of the heating box (2) is rotatably connected with a plurality of extension rollers (16), the extension rollers (16) are distributed in front and back high and low on the inner wall of the heating box (2), the left extension roller (16) is higher than the right extension roller (16).
5. The stretching mechanism for producing a blue-ray protection film according to claim 4, wherein: The inner wall of the heating box (2) is rotatably connected with a plurality of extension rollers (16), the extension rollers (16) are distributed in front and back high and low on the inner wall of the heating box (2), the left extension roller (16) is higher than the right extension roller (16). The inner wall of the heating box (2) is provided with a plurality of connecting base platforms (17), the connecting base platforms (17) are arrayed on the inner wall of the heating box (2), the connecting base platforms (17) are provided with a plurality of supporting plates (18) inside, the supporting plates (18) are arrayed in the connecting base platforms (17).
6. The stretching mechanism for producing a blue-ray protection film according to claim 5, wherein: The support plate (18) top fixedly connected with the drive motor (19), the drive motor (19) outer wall fixedly connected in the connecting base (17) inside, the drive motor (19) output fixedly connected with rotating arm (21), the drive motor (19) output passes through the inside of support plate (18), the support plate (18) bottom left and right sides are fixedly connected with connecting arm (20), the connecting arm (20) between the inner wall fixedly connected with fixed rod (26).
7. The stretching mechanism for producing a blue-ray protection film according to claim 6, wherein: The fixed rod (26) outer wall slidingly connected with left and right symmetrical swing arm (25), the fixed rod (26) is located in the swing arm (25) lower position, the swing arm (25) upper side position fixedly connected with slide column (24), the slide column (24) outer wall slidingly connected with rotating seat (23), the rotating seat (23) top rotatably connected with connecting rod (22), the connecting rod (22) top rotatably connected in the inner wall of rotating arm (21).
8. The stretching mechanism for producing a blue-ray protection film according to claim 7, wherein: The fixed rod (26) bottom fixedly connected with connecting block (27), the connecting block (27) bottom fixedly connected with hot blast heater (28), the hot blast heater (28) side wall fixedly connected with gas belt (29), the gas belt (29) top fixedly connected in the connecting base (17) inside.