An automatic pressure maintaining device for assembling a vehicle-mounted light guide plate and a reflective film

Abstract

The application relates to the field of backlight module assembling equipment, in particular to an automatic pressure maintaining device for assembling a vehicle-mounted light guide plate and a reflecting film. The device comprises an upper mold pressure maintaining mechanism, a lower mold positioning mechanism, an elastic reset module and a controller. The upper mold pressure maintaining mechanism comprises a support frame, a first driving assembly and an upper mold pressure maintaining piece. The first driving assembly is arranged on the support frame, and the upper mold pressure maintaining piece is connected with the first driving assembly. The lower mold positioning mechanism comprises a base, a first pushing assembly, a second pushing assembly and a floating support platform arranged in the base. The support frame is arranged on the base. A positioning groove is arranged on the upper end surface of the base. The floating support platform is arranged opposite to the positioning groove and movably matched with the inner wall of the base. The elastic reset module is connected between the floating support platform and the base to provide a pre-tightening force for driving the floating support platform to reset. The controller is electrically connected with the first driving assembly, the first pushing assembly and the second pushing assembly. The application can improve the assembling efficiency and ensure the stable and reliable sticking effect.

Description

Technical Field

[0001] This application relates to the field of backlight module assembly equipment, and in particular to an automated pressure holding device for assembling automotive light guide plates and reflective films. Background Technology

[0002] In the backlight manufacturing industry, the assembly of reflective films and light guide plates for automotive backlights is crucial, as its quality directly impacts the performance of the backlight. With the continuous development of the automotive industry, the requirements for the quality and production efficiency of automotive backlights are also increasing. Efficient and stable assembly methods can improve the overall quality of the product, meet market demands for high-quality automotive equipment, and also help reduce production costs and enhance the company's market competitiveness.

[0003] Previously, two methods were commonly used to solve the assembly problem of the reflective film and light guide plate in automotive backlights. One method involved manually pressing the light guide plate to achieve edge-wrapping assembly, relying on manual operation to initially adhere the reflective film and light guide plate. The other method involved using a metal scraper to scrape the left and right sides of the reflective film back and forth after manual assembly to ensure that the sides of the reflective film were firmly attached to the light guide plate. Both methods could accomplish the assembly task to a certain extent, but both were based on manual operation.

[0004] However, these existing conventional methods have significant drawbacks. Manually pressing the light guide plate during assembly is slow due to its reliance on manual labor, resulting in low overall production efficiency. Furthermore, when using a metal scraper to slide and press the reflective film along its sides, the manually applied pressure is difficult to maintain uniformity. This leads to unstable adhesion between the reflective film and the light guide plate, posing a risk of the reflective film not being firmly pressed and easily opening, thus affecting product quality and performance. Therefore, designing an automated pressure-holding device for assembling automotive light guide plates and reflective films that improves assembly efficiency and ensures stable and reliable adhesion is a pressing technical problem that needs to be solved. Summary of the Invention

[0005] The purpose of this application is to overcome the above-mentioned technical problems and provide an automated pressure-holding device for assembling vehicle-mounted light guide plates and reflective films, which can improve assembly efficiency and ensure stable and reliable bonding effect.

[0006] In a first aspect, one embodiment of this application discloses an automated pressure-holding device for assembling vehicle-mounted light guide plates and reflective films, employing the following solution: An automated pressure-holding device for assembling automotive light guide plates and reflective films includes: an upper mold pressure-holding mechanism, comprising a support frame, a first drive assembly, and an upper mold pressure-holding component, wherein the first drive assembly is disposed on the support frame, and the upper mold pressure-holding component is connected to the first drive assembly; a lower mold positioning mechanism, comprising a base and a first push assembly, a second push assembly, and a floating support platform located within the base, wherein the support frame is disposed on the base, a positioning groove is formed on the upper surface of the base, the floating support platform is disposed opposite to the positioning groove, and is movably engaged with the inner wall of the base; and an elastic reset module, connected between the floating support platform and the base, for providing a driving force for the floating support platform. The pre-tightening force for platform reset; the controller, electrically connected to the first driving component, the first pushing component, and the second pushing component respectively; wherein, the floating support platform is used to sequentially support the reflective film and the light guide plate placed through the positioning groove, the size of the reflective film is larger than the light guide plate, the upper mold pressure holding component is used to press down the light guide plate as driven by the first driving component, the floating support platform moves downward toward the interior of the base under pressure, and cooperates with the edge of the positioning groove to make the edge of the reflective film fold upward, the first pushing component and the second pushing component move toward the floating support platform to press the folded edge of the reflective film and bond it to the side of the light guide plate.

[0007] By adopting the above technical solution, the upper mold pressure holding mechanism can use the first drive component to drive the upper mold pressure holding component to press down the light guide plate, thereby achieving the pressure action on the light guide plate; the lower mold positioning mechanism can use the first push component, the second push component, and the floating support platform inside the base, in conjunction with the positioning groove, to position and place the reflective film and the light guide plate, and the floating support platform can move in conjunction with the inner wall of the base to ensure that it moves down smoothly when pressed; the elastic reset module can provide a reset preload for the floating support platform, so that the floating support platform can automatically return to its initial position after being pressed down; The controller is electrically connected to the first drive component, the first push component, and the second push component, enabling precise control and coordination of the actions of each component. A floating support platform supports the reflective film and the light guide plate, with the reflective film being larger than the light guide plate. When the upper mold pressure component presses down on the light guide plate, the floating support platform moves downward under pressure, engaging with the edge of the positioning groove to fold the edge of the reflective film upwards, facilitating subsequent edge-wrapping. The first and second push components move towards the floating support platform, pressing the folded edge of the reflective film firmly against the side of the light guide plate, completing the edge-wrapping assembly. Therefore, compared to manually pressing the light guide plate to assemble the reflective film and using a metal scraper to slide and press the reflective film's side, this method improves the assembly efficiency of the vehicle-mounted light guide plate and reflective film, enabling automated assembly.

[0008] Optionally, the floating support platform includes a first support plate and a second support plate spaced apart from the first support plate, the second support plate being used to support the reflective film and the light guide plate; the elastic reset module includes a guide post and an elastic element, one end of the guide post abutting against the inner wall of the base, the other end passing through the first support plate and movably abutting against the second support plate, and the two ends of the elastic element being connected to the first support plate and the second support plate respectively.

[0009] By adopting the above technical solution, the second support plate of the floating support platform can support the reflective film and the light guide plate, which facilitates subsequent assembly operations. The first support plate and the second support plate are spaced apart and cooperate with the guide column and elastic element of the elastic reset module. The guide column can ensure the stability and directional accuracy of the floating support platform during the pressure movement process. The elastic element stores elastic potential energy when it is compressed. When the pressure is removed, it can provide a preload force to drive the floating support platform to reset, so that the floating support platform can return to the initial position after each use, ensuring the cyclical stable operation of the entire device.

[0010] Optionally, the first pushing component and the second pushing component are symmetrically arranged, each including: a second driving member, fixed in the base; a linkage member, connected to the output end of the second driving member; and a pushing member, connected to the end of the linkage member away from the second driving member, for pressing the folded edge of the reflective film with the driving of the second driving member.

[0011] By adopting the above technical solution, the first pushing component and the second pushing component are symmetrically arranged, and each includes a second driving component fixed in the base, a linkage component connected to the output end of the second driving component, and a pushing component connected to the end of the linkage component away from the second driving component. This allows the pushing component to stably press the folded edge of the reflective film as driven by the second driving component. Combined with the action of the upper mold pressure component pressing down the light guide plate and the floating support platform moving down to fold the edge of the reflective film, the folded edge of the reflective film is bonded and fixed to the side of the light guide plate, ensuring the stability and reliability of the assembly process and improving the assembly efficiency and quality of the reflective film and the light guide plate.

[0012] Optionally, it also includes: a travel limit component, including a travel member and a limit abutment member, one end of the travel member is fixed to the end of the first support plate away from the second support plate, and a travel space is formed in the travel member for the limit abutment member to move, the limit abutment member is fixed to the end of the linkage member away from the second driving member, and is disposed opposite to the abutment member at the same end of the linkage member, for moving in the travel space with the drive of the second driving member.

[0013] By adopting the above technical solution, the stroke limiting component can limit the stroke of the second driving component and the driving linkage component, ensuring the stroke accuracy when the pushing component presses the edge of the reflective film, thereby ensuring the quality stability of the bonding and fixing of the reflective film and the side of the light guide plate.

[0014] Optionally, a sensing element is also included, which is disposed on the first support plate, for sensing the downward displacement of the second support plate relative to the first support plate.

[0015] By adopting the above technical solution, the sensing element, which is inserted into the first support plate, can accurately sense the downward displacement of the second support plate relative to the first support plate. This facilitates real-time monitoring of the downward pressure of the second support plate, providing accurate data for subsequent assembly operations. It ensures the accuracy and stability of the actions of each component during the assembly of the reflective film and the light guide plate, thereby improving the assembly quality and efficiency of the product.

[0016] Optionally, the lower mold positioning mechanism further includes a height limiting adjustment component, which is detachably disposed on the side of the first support plate away from the second support plate, to abut against the inner wall of the base, for adjusting the height of the first support plate.

[0017] By adopting the above technical solution, the height limiting adjustment component is detachably set on the side of the first support plate away from the second support plate, which can be easily installed and disassembled, facilitating subsequent maintenance and replacement; the height limiting adjustment component abuts against the inner wall of the base, which can support and limit the first support plate; the height limiting adjustment component can adjust the height of the first support plate, and thus flexibly adjust the height of the entire lower mold positioning mechanism according to actual needs, so as to adapt to the assembly of light guide plates and reflective films of different sizes, thereby improving the versatility and adaptability of the device.

[0018] Optionally, it also includes an adsorption element disposed inside the base, passing through the first support plate and facing the second support plate, wherein the corresponding second support plate is provided with a plurality of adsorption holes for adsorbing the placed reflective film.

[0019] By adopting the above technical solution, the adsorption component is located inside the base, passing through the first support plate and facing the second support plate. Combined with multiple adsorption holes on the second support plate, it can firmly adsorb the reflective film placed thereon, preventing the reflective film from shifting during assembly and improving assembly stability and product quality. The combined action of the upper mold pressure-holding mechanism, the lower mold positioning mechanism, the elastic reset module, and the controller enables efficient assembly of the reflective film and the light guide plate, ensuring a tight, stable, and reliable bond between the reflective film and the light guide plate.

[0020] Optionally, a limiting block is provided on the upper surface of the base. The limiting block is located on the side of the positioning groove and is used to limit the placement position of the reflective film or light guide plate.

[0021] By adopting the above technical solution, a limiting block is set on the side of the positioning groove on the upper end face of the base, which can limit the placement position of the reflective film or light guide plate. This helps to ensure the accuracy and consistency of the positioning of the vehicle-mounted light guide plate and the reflective film during the assembly process, thereby improving the assembly quality and efficiency.

[0022] Optionally, a layer of silicone material is attached to both the upper mold pressure-holding component and the pushing component.

[0023] By adopting the above technical solution, silicone material is attached to the upper mold pressure holding component and the pushing component. When assembling and pressurizing the reflective film and the light guide plate, the silicone pressure can be uniform, avoiding the risk of insufficient pressing caused by uneven manual pressure, and ensuring a stable and reliable bonding effect between the reflective film and the side of the light guide plate.

[0024] Optionally, it also includes a protective cover and a display screen, power socket, emergency stop switch and start button electrically connected to the controller. The protective cover is disposed on the base and covers the upper mold pressure holding mechanism. The display screen is disposed on the protective cover. The power socket, the emergency stop switch and the start button are disposed on the base. There are two start buttons, which are disposed on opposite sides of the base.

[0025] By adopting the above technical solutions, the protective cover can cover the upper mold pressure holding mechanism to play a protective role; the display screen can facilitate personnel operation and viewing of parameters; the power socket provides power input for the device; the emergency stop switch can quickly stop the device operation in an emergency to ensure safety; the start buttons are located on opposite sides of the base and are set to two, requiring both hands to operate the start buttons simultaneously to start the device, which can avoid accidental start due to accidental touch and further improve operational safety.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The upper mold pressure-holding mechanism utilizes the first drive component to drive the upper mold pressure-holding component to press down on the light guide plate, thereby applying pressure to the light guide plate; the lower mold positioning mechanism, through the first push component, the second push component, and the floating support platform within the base, works in conjunction with the positioning groove to position and place the reflective film and the light guide plate. The floating support platform moves in conjunction with the inner wall of the base, ensuring smooth downward movement under pressure; the elastic reset module provides a pre-tightening force for the floating support platform, allowing it to automatically return to its initial position after being pressed down; the controller is divided into... The first drive assembly, the first push assembly, and the second push assembly are electrically connected, enabling precise control and coordination of the actions of each assembly. The floating support platform supports the reflective film and the light guide plate, with the reflective film being larger than the light guide plate. When the upper mold pressure member presses down on the light guide plate, the floating support platform moves downward under pressure, cooperating with the edge of the positioning groove to fold the edge of the reflective film upward, facilitating subsequent edge wrapping. The first push assembly and the second push assembly move toward the floating support platform, pressing the folded edge of the reflective film tightly, achieving a firm bond and fixation between the folded edge of the reflective film and the side of the light guide plate. 2. The second support plate of the floating support platform can support the reflective film and the light guide plate, which facilitates subsequent assembly operations; the first support plate and the second support plate are spaced apart and cooperate with the guide column and elastic element of the elastic reset module. The guide column can ensure the stability and directional accuracy of the floating support platform during the pressure movement process. The elastic element stores elastic potential energy when compressed, and can provide a preload force to drive the floating support platform to reset when the pressure is removed, so that the floating support platform can return to the initial position after each use, ensuring the cyclical stable operation of the entire device; 3. The first and second pushing components are symmetrically arranged and each includes a second driving component fixed in the base, a linkage component connected to the output end of the second driving component, and a pushing component connected to the end of the linkage component away from the second driving component. This allows the pushing component to stably press the folded edge of the reflective film as driven by the second driving component. Combined with the action of the upper mold pressure component pressing down the light guide plate and the floating support platform moving down to fold the edge of the reflective film, the folded edge of the reflective film is bonded and fixed to the side of the light guide plate, ensuring the stability and reliability of the assembly process and improving the assembly efficiency and quality of the reflective film and the light guide plate. 4. The stroke limit component can limit the stroke of the second driving component and the driving linkage component, ensuring the stroke accuracy when the pushing component presses the edge of the reflective film, thereby ensuring the quality stability of the bonding and fixing of the reflective film and the side of the light guide plate. At the same time, combined with the upper mold pressure holding mechanism, the lower mold positioning mechanism, the elastic reset module and the controller, the overall device can realize efficient and stable assembly and pressure holding of the vehicle light guide plate and the reflective film, improving assembly efficiency and product quality. Attached Figure Description

[0027] Figure 1This is a three-dimensional structural schematic diagram of an automated pressure-holding device for assembling vehicle-mounted light guide plates and reflective films, as disclosed in an embodiment of this application. Figure 2 for Figure 1 A partial structural schematic diagram of an automated pressure-holding device for assembling vehicle-mounted light guide plates and reflective films; Figure 3 for Figure 1 A partial structural schematic diagram of an automated pressure-holding device for assembling vehicle-mounted light guide plates and reflective films; Figure 4 for Figure 1 A partial structural schematic diagram of an automated pressure-holding device for assembling vehicle-mounted light guide plates and reflective films; Figure 5 for Figure 1 An exploded view of a portion of the structure of an automated pressure-holding device for assembling vehicle-mounted light guide plates and reflective films; Figure 6 for Figure 1 A partial structural schematic diagram of an automated pressure-holding device for assembling vehicle-mounted light guide plates and reflective films; Figure 7 for Figure 1 An exploded view of a portion of the structure of an automated pressure-holding device for assembling vehicle-mounted light guide plates and reflective films.

[0028] Explanation of reference numerals in the attached figures: 10. Upper mold pressure holding mechanism; 11. Support frame; 12. First drive assembly; 13. Upper mold pressure holding component; 20. Lower mold positioning mechanism; 21. Base; 211. Positioning groove; 212. Limiting block; 22. First pushing assembly; 221. Second drive component; 222. Linkage component; 223. Pushing component; 23. Second pushing assembly; 24. Floating support platform; 241. First support plate; 242. Second support plate; 2421. 25. Adsorption hole; 30. Height adjustment component; 31. Elastic reset module; 32. Guide post; 40. Elastic component; 50. Controller; 51. Travel limit assembly; 51. Travel component; 51. Travel space; 52. Limiting contact component; 60. Sensing component; 70. Adsorption component; 80. Protective cover; 90. Display screen; 100. Power socket; 110. Emergency stop switch; 120. Start button; 130. Reflective film; 140. Light guide plate. Detailed Implementation

[0029] The present application will be further described in detail below with reference to the accompanying drawings.

[0030] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make this application more thorough and complete, and to fully convey the scope of this application to those skilled in the art.

[0031] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a” and “the” as used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0032] It should be understood that although the terms "first," "second," etc., may be used in this application to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0033] The present application will now be described in further detail with reference to the accompanying drawings.

[0034] See Figure 1 , Figure 2 and Figure 3 An automated pressure-holding device for assembling vehicle-mounted light guide plates and reflective films, disclosed in this application embodiment, includes an upper mold pressure-holding mechanism 10, a lower mold positioning mechanism 20, an elastic reset module 30, and a controller 40.

[0035] The upper mold pressure holding mechanism 10 and the lower mold positioning mechanism 20 work together to complete the assembly and pressure holding of the reflective film 130 and the light guide plate 140. The elastic reset module 30 provides pre-tightening force for the reset of the floating support platform 24. The controller 40 controls all the driving components of the entire device in a unified manner to ensure the orderly operation of the device.

[0036] Specifically, the upper mold pressure holding mechanism 10 includes a support frame 11, a first drive assembly 12, and an upper mold pressure holding component 13. The support frame 11 supports the entire upper mold pressure holding mechanism 10 and is made of metal, such as stainless steel or aluminum alloy, which has high strength and stability. The first drive assembly 12 is mounted on the support frame 11 and adopts a cylinder structure. During operation, it includes an intake phase and an exhaust phase. In the intake phase, compressed air enters the cylinder from one end of the intake port, pushing the upper mold pressure holding component 13 to move (downward) to the other end, thereby achieving the downward pressing action of the upper mold pressure holding component 13. In the exhaust phase, after the upper mold pressure holding component 13 reaches the end of its stroke, the air path is switched, with air entering from the other end and exhausting from the original end, causing the upper mold pressure holding component 13 to move away from the light guide plate 140 in the opposite direction. Of course, in other embodiments, other drive components such as electric push rods can also be used. The upper mold pressure holding component 13 is connected to the first drive assembly 12. The upper mold pressure holding component 13 is composed of an aluminum component and a silicone layer (formed from silicone material). The aluminum component provides rigid support, while the silicone layer provides uniform pressure when in contact with the light guide plate 140 and prevents scratches on the surface of the light guide plate 140. The connection between the upper mold pressure holding component 13 and the first drive assembly 12 can be a bolt connection or welding to ensure the connection is secure, and is not limited thereto.

[0037] The lower mold positioning mechanism 20 includes a base 21 and a first pushing component 22, a second pushing component 23, and a floating support platform 24 located within the base 21. The base 21 is the foundation of the entire lower mold positioning mechanism 20 and can be made of cast iron or welded steel plate, possessing good wear resistance and stability. A positioning groove 211 is provided on the base 21. The shape and size of the positioning groove 211 are designed according to the size of the reflective film 130 and the light guide plate 140, and its function is to perform preliminary positioning of the reflective film 130 and the light guide plate 140.

[0038] In order to limit the placement of the reflective film 130 or the light guide plate 140, in this embodiment, a limiting block 212 is provided on the upper surface of the base 21. The limiting block 212 is located on the side of the positioning groove 211, which helps to ensure the accuracy and consistency of the positioning of the vehicle light guide plate 140 and the reflective film 130 during the assembly process, thereby improving the assembly quality and efficiency.

[0039] The floating support platform 24 is positioned directly opposite the positioning groove 211 and is movably fitted with the inner wall of the base 21, allowing it to move up and down within the base 21. Specifically, the floating support platform 24 includes a first support plate 241 and a second support plate 242, which are spaced apart. The second support plate 242 is used to support the reflective film 130 and the light guide plate 140. For example, both the first support plate 241 and the second support plate 242 are made of aluminum, which has a lighter weight and better processing performance.

[0040] The first pushing assembly 22 and the second pushing assembly 23 are symmetrically arranged, each including a second driving member 221, a linkage member 222, and a pushing member 223. The second driving member 221 is a small cylinder fixed inside the base 21, providing power for the movement of the pushing member 223. The linkage member 222 is connected to the output end of the second driving member 221 and can move along a preset linear direction to ensure the linear motion accuracy of the pushing member 223. The pushing member 223 is connected to the end of the linkage member 222 away from the second driving member 221, and is used to press the folded edge of the reflective film 130 with the driving of the second driving member 221. The end of the pushing member 223 away from the second driving member 221, i.e., the pressing end, is coated with a silicone layer (formed from silicone material) to achieve uniform pressure. The structure of the attached silicone layer is described below. Figure 5 The convex edge shown can achieve an edge-wrapping effect when the folded edge of the reflective film 130 is pressed tightly.

[0041] Furthermore, to accommodate the assembly of light guide plates 140 and reflective films 130 of different sizes, thus improving the versatility and adaptability of the device, this embodiment also includes a height adjustment component 25. The height adjustment component 25 is detachably mounted on the side of the first support plate 241 away from the second support plate 242, abutting against the inner wall of the base 21, and is used to adjust the height of the first support plate 241. Its structure is as follows: Figure 4 As shown, this embodiment is not limited to any particular example; any method that achieves the same function is acceptable.

[0042] The elastic reset module 30 is connected between the floating support platform 24 and the base 21, providing a preload force to drive the floating support platform 24 to reset. The elastic reset module 30 includes a guide post 31 and an elastic element 32. One end of the guide post 31 abuts against the inner wall of the base 21, and the other end passes through the first support plate 241 and movably abuts against the second support plate 242, serving a guiding function to ensure the vertical movement of the floating support platform 24. The guide post 31 may be made of stainless steel, for example, which has high smoothness and wear resistance. The elastic element 32 is connected to the first support plate 241 and the second support plate 242 at both ends. The elastic element 32 is a spring, and the spring constant can be selected according to actual needs to ensure that the floating support platform 24 can reset smoothly.

[0043] The controller 40 is electrically connected to the first drive assembly 12, the first push assembly 22, and the second push assembly 23 respectively. The controller 40 is a PLC controller used to control the first drive assembly 12 to drive the upper mold pressure member 13 to rise and fall, so as to complete the action of pressing down the light guide plate 140. It is used to control the second drive member 221 of the first push assembly 22 and the second push assembly 23 respectively to drive the push member 223 to reciprocate linear motion, so as to press the folded edge of the reflective film 130 and bond and fix it to the side of the light guide plate 140, thereby completing the product assembly.

[0044] See Figure 4 and Figure 5 In this embodiment, a travel limiting component 50 is also included, which includes a travel member 51 and a limiting abutment member 52. One end of the travel member 51 is fixed to the end of the first support plate 241 away from the second support plate 242, and a travel space 511 for the limiting abutment member 52 to move is formed within the travel member 51. The limiting abutment member 52 is fixed to the end of the linkage member 222 away from the second driving member 221, and is disposed opposite to the abutment member at the same end of the linkage member 222, for moving in the travel space 511 with the drive of the second driving member 221.

[0045] The structure of the travel component 51 can be as follows: Figure 6 The "U"-shaped structure shown can be made of plastic or metal, and is not limited thereto. The stroke member 51 can control the stroke of the first push assembly 22 and the second push assembly 23 to prevent over-movement and affect the pressing of the folded edge of the reflective film 130.

[0046] See Figure 6 and Figure 7 In this embodiment, a sensing element 60 is also included, which is disposed on the first support plate 241 and is used to sense the downward displacement of the second support plate 242 relative to the first support plate 241.

[0047] When the downward displacement meets a preset distance, the controller 40 controls the driving components of the first pushing component 22 and the second pushing component 23 to operate. In this embodiment, the type of sensing element 60 is not limited; it only needs to be able to sense the relative distance between the second support plate 242 and output a sensing signal.

[0048] Additionally, see Figure 4 and Figure 5 In this embodiment, an adsorption element 70 is also included, which is disposed in the base 21, passes through the first support plate 241 and faces the second support plate 242. The corresponding second support plate 242 is provided with a plurality of adsorption holes 2421 for adsorbing the placed reflective film 130.

[0049] The adsorption component 70 is connected to an external vacuum generator via a pipeline, and the vacuum generator is controlled by the controller 40. During operation, the controller 40 controls the operation of the vacuum generator, and in conjunction with the multiple adsorption holes 2421 on the second support plate 242, the adsorption component 70 can firmly adsorb the reflective film 130 onto the second support plate 242, preventing the reflective film 130 from shifting during assembly, thus improving assembly stability and product quality.

[0050] Furthermore, see Figure 1 and Figure 4In this embodiment, it also includes a protective cover 80 and a display screen 90, a power socket 100, an emergency stop switch 110, and a start button 120 of the electrical connection controller 40.

[0051] The protective cover 80 is mounted on the base 21 and covers the upper mold pressure holding mechanism 10, providing protection. The display screen 90 is mounted on the protective cover 80 and displays the equipment's operating status and parameters, allowing operators to easily view information such as the equipment's operating status. The power socket 100, emergency stop switch 110, and start button 120 are all located on the base 21. The power socket 100 provides power to the device; the emergency stop switch 110 can quickly stop the device in an emergency, ensuring safety; the two start buttons 120, located on opposite sides of the base 21, increase the safety of the start-up operation. Both hands must be used simultaneously to operate the start buttons 120 to start the device, preventing accidental start-up and potential danger. The combination of two-hand start-up and emergency stop protection also complies with industrial equipment safety standards. Additionally, other control switches connected to the controller 40 can also be mounted on the protective cover 80, such as a vacuum switch to control the adsorption of the adsorption components, etc., which are not limited here.

[0052] The implementation principle of this embodiment is as follows: through the cooperation of the upper mold pressure holding mechanism 10, the lower mold positioning mechanism 20, the elastic reset module 30 and the controller 40, the automated assembly and pressure holding of the vehicle-mounted light guide plate 140 and the reflective film 130 are realized.

[0053] During assembly, the reflective film 130 is first placed on the second support plate 242 of the floating support platform 24. The adsorption component 70 adsorbs and fixes the reflective film 130 through the adsorption hole 2421. Then, the light guide plate 140 is placed on the reflective film 130. Then, the controller 40 controls the first driving component 12 to drive the upper mold pressure holding component 13 to press down the light guide plate 140. The floating support platform 24 is pressed and moves downward toward the inside of the base 21, so that the edge of the reflective film 130 is folded upward under the cooperation of the upper mold pressure holding component 13 and the edge of the positioning groove 211. Then, the controller 40 controls the first pushing component 22 and the second pushing component 23 to move toward the floating support platform 24, pressing the folded edge of the reflective film 130 so that it is bonded and fixed to the side of the light guide plate 140.

[0054] During this process, the sensing element 60 can monitor the downward displacement of the second support plate 242 in real time, the stroke limiting component 50 can prevent the first pushing component 22 and the second pushing component 23 from moving excessively, and the height limiting adjustment component 25 can adjust the height of the first support plate 241 to accommodate materials of different thicknesses. The elastic reset module 30 ensures that the floating support platform 24 can reset after being pressed, facilitating the next assembly. The entire device improves the assembly efficiency of the vehicle-mounted light guide plate 140 and the reflective film 130, ensures the stability and reliability of the bonding effect, and greatly improves product quality and production efficiency compared to the traditional manual assembly method, while reducing production costs.

[0055] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automated pressure-holding device for assembling vehicle-mounted light guide plates and reflective films, characterized in that, include: The upper mold pressure holding mechanism (10) includes a support frame (11), a first drive assembly (12) and an upper mold pressure holding component (13). The first drive assembly (12) is disposed on the support frame (11), and the upper mold pressure holding component (13) is connected to the first drive assembly (12). The lower mold positioning mechanism (20) includes a base (21) and a first pushing component (22), a second pushing component (23) and a floating support platform (24) located in the base (21). The support frame (11) is provided on the base (21). The upper surface of the base (21) is provided with a positioning groove (211). The floating support platform (24) is set opposite to the positioning groove (211) and is movablely engaged with the inner wall of the base (21). An elastic reset module (30) is connected between the floating support platform (24) and the base (21) to provide a preload force to drive the floating support platform (24) to reset; The controller (40) is electrically connected to the first drive component (12), the first push component (22) and the second push component (23), respectively. The floating support platform (24) is used to sequentially receive the reflective film (130) and the light guide plate (140) placed through the positioning groove (211). The size of the reflective film (130) is larger than that of the light guide plate (140). The upper mold pressure member (13) is used to press down the light guide plate (140) as driven by the first driving component (12). The floating support platform (24) is pressed and moves downward toward the interior of the base (21). The edge of the positioning groove (211) is used to make the edge of the reflective film (130) fold upward. The first pushing component (22) and the second pushing component (23) move toward the floating support platform (24) to press the folded edge of the reflective film (130) and bond it to the side of the light guide plate (140).

2. The automated pressure-holding device for assembling vehicle-mounted light guide plates and reflective films according to claim 1, characterized in that, The floating support platform (24) includes a first support plate (241) and a second support plate (242) spaced apart from the first support plate (241). The second support plate (242) is used to support the reflective film (130) and the light guide plate (140). The elastic reset module (30) includes a guide post (31) and an elastic element (32). One end of the guide post (31) abuts against the inner wall of the base (21), and the other end passes through the first support plate (241) and movably abuts against the second support plate (242). The two ends of the elastic element (32) are respectively connected to the first support plate (241) and the second support plate (242).

3. The automated pressure-holding device for assembling vehicle-mounted light guide plates and reflective films according to claim 2, characterized in that, The first pushing component (22) and the second pushing component (23) are symmetrically arranged, and each includes: The second driving component (221) is fixed inside the base (21); Linkage component (222) is connected to the output end of the second drive component (221); A pusher (223) is connected to one end of the linkage (222) away from the second drive member (221) for pressing the folded edge of the reflective film (130) with the drive of the second drive member (221).

4. The automated pressure-holding device for assembling vehicle-mounted light guide plates and reflective films according to claim 3, characterized in that, Also includes: The travel limit assembly (50) includes a travel member (51) and a limit abutment member (52). One end of the travel member (51) is fixed to the end of the first support plate (241) away from the second support plate (242), and a travel space (511) is formed in the travel member (51) for the limit abutment member (52) to move. The limit abutment member (52) is fixed to the end of the linkage member (222) away from the second drive member (221), and is disposed opposite to the abutment member at the same end of the linkage member (222), for moving in the travel space (511) with the drive of the second drive member (221).

5. The automated pressure-holding device for assembling vehicle-mounted light guide plates and reflective films according to claim 4, characterized in that, It also includes a sensing element (60) which is mounted on the first support plate (241) for sensing the downward displacement of the second support plate (242) relative to the first support plate (241).

6. The automated pressure-holding device for assembling vehicle-mounted light guide plates and reflective films according to claim 2, characterized in that, The lower mold positioning mechanism (20) also includes a height limiting adjustment component (25), which is detachably disposed on the side of the first support plate (241) away from the second support plate (242) to abut against the inner wall of the base (21) for adjusting the height of the first support plate (241).

7. The automated pressure-holding device for assembling vehicle-mounted light guide plates and reflective films according to claim 2, characterized in that, It also includes an adsorption element (70), which is disposed in the base (21), passes through the first support plate (241) and faces the second support plate (242). The second support plate (242) is provided with a plurality of adsorption holes (2421) for adsorbing the placed reflective film (130).

8. The automated pressure-holding device for assembling vehicle-mounted light guide plates and reflective films according to claim 1, characterized in that, The upper surface of the base (21) is provided with a limiting block (212), which is located on the side of the positioning groove (211) and is used to limit the placement position of the reflective film (130) or the light guide plate (140).

9. The automated pressure-holding device for assembling vehicle-mounted light guide plates and reflective films according to claim 3, characterized in that, Both the upper mold pressure holding component (13) and the push component (223) are coated with a layer of silicone material.

10. The automated pressure-holding device for assembling vehicle-mounted light guide plates and reflective films according to claim 1, characterized in that, It also includes a protective cover (80) and a display screen (90), a power socket (100), an emergency stop switch (110) and a start button (120) electrically connected to the controller (40). The protective cover (80) is disposed on the base (21) and covers the upper mold pressure holding mechanism (10). The display screen (90) is disposed on the protective cover (80). The power socket (100), the emergency stop switch (110) and the start button (120) are disposed on the base (21). There are two start buttons (120), which are disposed on opposite sides of the base (21).

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