Roll-in type laminating device for flexible film
By using a rigid plate adsorption platform and a porous support pad in conjunction with a CCD alignment device, the problems of deviation and scratches in the roll lamination of flexible films are solved, and a high-precision, damage-free lamination process is achieved.
Patent Information
- Application Number
- CN202422919139.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-11-28
Smart Images
Figure CN223791005U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of film bonding technology, and more specifically, to a flexible film roller bonding device. Background Technology
[0002] Conventional flexible film material lamination is soft-to-hard lamination, which involves directly rolling the film material onto a platform. In this method, the flexible film is adsorbed onto a platform, and the film material is placed on the platform and the roller moves during rolling to bond the film. This causes the film material to be stretched and deformed in the rolling direction due to the roller pressure, resulting in a deviation of about 10µm after lamination, leading to low lamination accuracy. Furthermore, because the flexible film is adsorbed through vacuum holes, the film material can slide on these holes during rolling, making it prone to surface scratches. To prevent these scratches, a protective film needs to be applied to the flexible film substrate beforehand, increasing the cost of processes, labor, and materials. Utility Model Content
[0003] The purpose of this invention is to provide a flexible film roll lamination device to solve the above-mentioned defects of the prior art.
[0004] This utility model is achieved through the following technical solution:
[0005] A flexible film roll lamination device includes:
[0006] Rigid plate adsorption platform, used for adsorbing substrates;
[0007] A film placement platform, located below the rigid plate adsorption platform, is used to place flexible films and bring them closer to the substrate. The film placement platform includes a mounting frame, a flexible metal sheet, and a porous support pad made of porous material. The porous support pad is fixed to the top of the metal sheet. Several clamping screws for pressing the metal sheet are connected to opposite sides of the top edge of the mounting frame.
[0008] The roller assembly is located below the film placement platform and uses the lifting and moving of the rollers to bond the flexible film to the substrate.
[0009] Optionally, the metal sheet has a vacuum chamber inside, and the top of the metal sheet has a vacuum adsorption hole that communicates with the vacuum chamber.
[0010] Optionally, a plurality of guide posts are provided on the mounting frame, and the clamping screws are connected to the guide posts one by one; the guide posts are kept to move downward by elastic elements so that the metal sheet is in close contact with the top of the mounting frame.
[0011] Optionally, the bottom of the mounting frame is provided with a mounting hole corresponding to the clamping screw. The port of the mounting hole is closed by an end cap. The guide post extends from the bottom of the mounting hole to the top surface of the mounting frame. The lower end of the guide post is provided with a retaining ring, which cooperates with the mounting hole. The elastic element is sleeved on the guide post and pressed between the retaining ring and the bottom of the mounting hole.
[0012] Optionally, the sidewall of the mounting frame is connected to a limiting screw for limiting the upward movement distance of the retaining ring.
[0013] Optionally, the elastic element is a spring.
[0014] Optionally, at least three clamping screws are connected to each of the two opposite sides of the top edge of the mounting frame.
[0015] Optionally, the porous support pad is porous paper.
[0016] Optionally, the bonding device also includes a CCD alignment device, which is located between the rigid plate adsorption platform and the film placement platform.
[0017] The technical solution of this utility model has at least the following advantages and beneficial effects:
[0018] 1. In this utility model, the porous support pad is made of porous material, that is, the material itself has nano-scale (or micro-scale) pores, the surface is smooth and breathable, avoiding the need to set vacuum holes in the porous support pad for traditional vacuum adsorption, and thus avoiding the deformation and scratches of the flexible film caused by setting vacuum holes in the porous support pad.
[0019] 2. In this utility model, during lamination, the rollers press the bottom of the metal sheet, causing the metal sheet to deform and arch upwards at the point of contact with the rollers. The flexible film first adheres to the substrate at the arched part of the metal sheet, and then the rollers move to gradually attach the flexible film to the substrate. This arrangement helps air bubbles to escape to the unattached areas, effectively avoiding the generation of air bubbles and improving the lamination accuracy. Moreover, the flexible film and the rollers are buffered by the metal sheet and the porous support pad, preventing the flexible film from being directly stretched and deformed by the roller pressure. Attached Figure Description
[0020] Figure 1 A schematic diagram of the structure of the flexible film roller laminating device before lamination provided by this utility model;
[0021] Figure 2 An exploded view of the membrane material placement platform and roller assembly;
[0022] Figure 3 for Figure 1 Enlarged view of point A in the image;
[0023] Figure 4A schematic diagram of the structure of the flexible film roller laminating device during lamination provided by this utility model;
[0024] Reference numerals: 100-Membrane placement platform, 101-Mounting frame, 102-Metal sheet, 103-Porous support pad, 104-Clamping screw, 105-Guide post, 1051-Retaining ring, 106-End cap, 107-Elastic element, 108-Limiting screw, 200-Rigid plate adsorption platform, 300-Roller assembly, 400-Flexible film, 500-Substrate. Detailed Implementation
[0025] refer to Figure 1 and Figure 2 A flexible film roller lamination device includes a rigid plate adsorption platform 200, a film placement platform 100, and a roller assembly 300.
[0026] The film placement platform 100 is used to place the flexible film 400 and move it closer to the substrate 500. It is easy to understand that the film placement platform 100 should be connected to a lifting mechanism (not shown) to drive its lifting and lowering, so as to move it closer to or away from the substrate 500. Specifically, the film placement platform 100 includes a mounting frame 101, an elastic metal sheet 102, and a porous support pad 103 made of porous material. The porous support pad 103 is fixed to the top of the metal sheet 102. Several clamping screws 104 for clamping the metal sheet 102 are connected to each of the two opposite sides of the top edge of the mounting frame 101. As an option, in this embodiment, at least three clamping screws 104 are connected to each of the two opposite sides of the top edge of the mounting frame 101, for a total of six clamping screws 104.
[0027] The rigid plate adsorption platform 200 is located above the film material placement platform 100 and is used to adsorb the substrate 500. The adsorption method can be conventional vacuum adsorption. The roller assembly 300 is located below the film material placement platform 100 and uses the lifting and moving of the rollers to make the flexible film 400 adhere to the substrate 500. Specifically, the roller assembly 300 includes a support base and a roller seat for mounting the rollers. It is easy to understand that the support base should be connected to a lifting mechanism (not shown) to drive its lifting and lowering. At the same time, the roller seat should be able to slide on the support base. In practical applications, the roller seat can be connected to a drive mechanism (not shown) to drive its linear displacement to achieve sliding.
[0028] Based on the above, the flexible film 400 is placed on the porous support pad 103. Since the porous support pad 103 is made of a porous material—that is, the material itself has nanoscale (or microscale) pores—its surface is smooth and breathable, avoiding the need for vacuum holes in the porous support pad 103 required for traditional vacuum adsorption. This also avoids deformation and scratches to the flexible film 400 caused by vacuum holes in the porous support pad 103. Alternatively, in this embodiment, the porous support pad 103 is porous paper. Of course, in other embodiments, the porous support pad 103 can also be made of other materials, such as porous silicon, porous ceramics, carbon nanotube sponges, etc.
[0029] The bonding apparatus provided in this embodiment also includes a CCD alignment device (not shown). The CCD alignment device is located between the rigid plate adsorption platform 200 and the film placement platform 100. The CCD alignment device takes pictures using a CCD camera to detect whether the flexible film 400 is aligned with the substrate 500. After the detection is completed, the CCD alignment device exits the picture position to avoid affecting subsequent bonding operations. Based on this, it is easy to understand that an alignment compensation mechanism (not shown, which can be a moving platform capable of moving in two directions) can also be set to adjust the overall position of the film placement platform 100 to better align the flexible film 400 with the substrate 500.
[0030] When bonding (e.g.) Figure 4 As shown, the roller presses the bottom of the metal sheet 102, causing the metal sheet 102 to deform and arch upwards at the point of contact with the roller. The flexible film 400 first adheres to the substrate 500 at the arched part of the metal sheet 102. Then, the roller moves to gradually adhere the other parts of the flexible film 400 to the substrate 500. This arrangement helps air bubbles to be discharged to the unattached areas, effectively avoiding the generation of air bubbles and improving the bonding accuracy. Moreover, the flexible film 400 and the roller are buffered by the metal sheet 102 and the porous support pad 103, preventing the flexible film 400 from being directly stretched and deformed by the roller pressure.
[0031] Furthermore, in this embodiment, the metal sheet 102 is provided with a vacuum chamber inside, and the top of the metal sheet 102 is provided with a vacuum adsorption hole that communicates with the vacuum chamber, so as to facilitate the vacuum chamber to be drawn by a negative pressure device, thereby generating negative pressure to help fix the flexible film 400 and prevent the flexible film 400 from being displaced during rolling and causing scratches.
[0032] refer to Figure 1 and Figure 3To ensure better deformation of the metal sheet 102, this embodiment also incorporates the following improvements: Specifically, a plurality of guide posts 105 are provided on the mounting frame 101, and clamping screws 104 are connected to the guide posts 105 one-to-one; the guide posts 105 are kept in a downward trend by elastic members 107, so that the metal sheet 102 is tightly attached to the top of the mounting frame 101. Preferably, the elastic member 107 is a spring. When the roller presses and adheres the metal sheet, the elastic member 107 is compressed, and the guide posts 105 and the metal sheet 102 can rise according to the compression ratio of the spring. After the roller descends, the metal sheet 102 returns to its original position under the action of the spring.
[0033] As an alternative, the elastic element 107 and the guide post 105 are installed as follows: The bottom of the mounting frame 101 has a mounting hole corresponding to the clamping screw 104. The port of the mounting hole is closed by an end cap 106. The guide post 105 extends from the bottom of the mounting hole onto the top surface of the mounting frame 101. A retaining ring 1051 is provided at the lower end of the guide post 105, which engages with the mounting hole. The elastic element 107 is sleeved on the guide post 105 and pressed between the retaining ring 1051 and the bottom of the mounting hole. That is, the spring is compressed in its initial state, with its upper end abutting against the bottom of the mounting hole and its lower end abutting against the retaining ring 1051, causing the guide post 105 to maintain a downward movement tendency. It is easy to understand that in other embodiments, the above functions can also be achieved by changing the shape of the guide post 105 and the mounting hole, as well as the installation position of the elastic element 107.
[0034] Furthermore, in this embodiment, a limiting screw 108 is connected to the side wall of the mounting frame 101 to limit the upward movement distance of the retaining ring 1051. This arrangement prevents the elastic element 107 from being over-compressed and failing.
[0035] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A flexible film roll-pressing bonding device, characterized in that, include: Rigid plate adsorption platform, used for adsorbing substrates; A film placement platform, located below the rigid plate adsorption platform, is used to place flexible films and bring them closer to the substrate. The film placement platform includes a mounting frame, a flexible metal sheet, and a porous support pad made of porous material. The porous support pad is fixed to the top of the metal sheet. Several clamping screws for pressing the metal sheet are connected to opposite sides of the top edge of the mounting frame. The roller assembly is located below the film placement platform and uses the lifting and moving of the rollers to bond the flexible film to the substrate.
2. The flexible film roll-pressing laminating device according to claim 1, characterized in that, The metal sheet has a vacuum chamber inside, and a vacuum adsorption hole connected to the vacuum chamber is provided on the top of the metal sheet.
3. The flexible film roll-pressing laminating device according to claim 1, characterized in that, The mounting frame is provided with several guide posts, and the clamping screws are connected to the guide posts one by one. The guide posts are kept to move downward by elastic elements so that the metal sheet is in close contact with the top of the mounting frame.
4. The flexible film roll-pressing laminating device according to claim 3, characterized in that, The bottom of the mounting frame is provided with a mounting hole corresponding to the clamping screw. The port of the mounting hole is closed by an end cap. The guide post extends from the bottom of the mounting hole to the top surface of the mounting frame. The lower end of the guide post is provided with a retaining ring, which cooperates with the mounting hole. The elastic element is sleeved on the guide post and pressed between the retaining ring and the bottom of the mounting hole.
5. The flexible film roll-pressing bonding device according to claim 4, characterized in that, The side wall of the mounting frame is connected to a limiting screw for limiting the upward movement distance of the retaining ring.
6. The flexible film roll-pressing laminating device according to claim 3, characterized in that, The elastic element is a spring.
7. The flexible film roll-forming laminating device according to any one of claims 1-6, characterized in that, At least three clamping screws are connected to each of the two opposite sides of the top edge of the mounting frame.
8. The flexible film roll-forming lamination device according to any one of claims 1-6, characterized in that, The porous support pad is porous paper.
9. The flexible film roll-forming lamination device according to any one of claims 1-6, characterized in that, The bonding device also includes a CCD alignment device, which is located between the rigid plate adsorption platform and the film placement platform.