Optical adhesive laminating mechanism

Abstract

The utility model relates to an optical cement laminating mechanism in the field of laminating mechanisms, which comprises a mounting plate, an unwinding roller and a winding roller, the unwinding roller and the winding roller are arranged on the mounting plate, one end of the mounting plate is provided with a film guide roller and a film transfer roller which are used for transmitting a base material, the mounting plate is connected with a gluing component, the mounting plate is connected with an extrusion roller through a support frame, and the support frame is connected with a transmission component. A lifting air cylinder is arranged on the extrusion roller, a film covering block is arranged on the mounting plate, a film covering pressing groove is formed in the side face of the film covering block, a film covering roller is arranged on the mounting plate, the film covering roller is connected with a film covering pressing plate through a shaft sleeve, and a buffering piece is arranged on the side face of the film covering pressing plate. Due to the design of the laminating pressing groove in the laminating block, a diaphragm is more tightly contacted with a base material, meanwhile, the buffer piece on the side face of the laminating pressing plate protects the base material and the diaphragm from being damaged, the laminating effect is improved, the stability and the reliability in the laminating process are ensured, and the production efficiency is improved. And the base material and the diaphragm are laminated and laminated through the laminating pressing groove and the laminating pressing plate, so that the production quality is improved.

Description

Technical Field

[0001] The utility model relates to the field of film laminating mechanisms, and particularly relates to an optical adhesive film laminating mechanism. Background Technique

[0002] As a key material, optical adhesive has a wide range of applications, including but not limited to multiple fields such as electronic displays, optical instruments, automotive manufacturing, and aerospace. Especially in the manufacturing process of electronic products, optical adhesive is used in key links such as screen lamination and optical component fixation, playing a crucial role in the display effect, durability, and reliability of the products. As an important means to protect the surface of optical adhesive and improve its performance, the film laminating technology can not only effectively prevent scratches and contamination but also enhance its water resistance, abrasion resistance, and ultraviolet resistance, ensuring the stability and durability of optical adhesive in different environments.

[0003] The existing optical adhesive film laminating mechanisms mainly include an optical adhesive extrusion device, a pressure roller, a peeling roller, a film laminating roller, and a winding roller, etc. Among them, the optical adhesive extrusion device is responsible for evenly coating the optical adhesive on the substrate; the pressure roller is used to tightly attach the adhesive film to the surface of the substrate to ensure no air bubbles are generated; the peeling roller is used to peel off the excess adhesive film or protective layer; the film laminating roller further evenly covers the optical adhesive film on the substrate; finally, the winding roller winds up the film-laminated product for subsequent processing or storage.

[0004] Chinese Patent with Publication No. CN 212021592 U discloses an optical adhesive film laminating mechanism, including a mounting plate. On one side outer wall of the mounting plate, two pressure rubber rollers are connected by bearings, and one end of the rotating shafts of the two pressure rubber rollers penetrates through the one side outer wall of the mounting plate and is welded with a first gear. The two first gears are meshed with each other. On one side outer wall of one of the first gears, a first belt pulley is welded. On the one side outer wall of the mounting plate, a motor is connected by bolts, and one end of the output shaft of the motor penetrates through the one side outer wall of the mounting plate and is welded with a second belt pulley. The first belt pulley and the second belt pulley are connected by a belt drive. On the one side outer wall of the mounting plate, two film transfer rollers are connected by bearings, and an adhesive film is arranged on the outer wall of the film transfer roller. On the one side outer wall of the mounting plate, a winding roller is connected by a bearing, and the adhesive film is conveyed to the winding roller through the pressure rubber rollers. This patent uses the film transfer roller to supply the film for the optical adhesive, making the pressure rubber roller play the role of film lamination, simplifying the film lamination structure, and making the optical adhesive not generate air bubbles after film lamination, being more beautiful.

[0005] However, for this patent in the process of applying and laminating optical glue, only by directly extruding glue through an extrusion tube at the compounding part and directly pressing and laminating through a pressure roller and a film transfer roller, the glue cannot be evenly coated on the substrate, resulting in poor laminating effects of the subsequent directly pressed and laminated substrate and diaphragm, affecting the uniform laminating contact on the surfaces of the substrate and the diaphragm, thus affecting the production quality of the optical glue. In addition, the existing pressing and laminating structure for the substrate and the diaphragm is relatively simple, which affects the pressing and laminating effects and quality. Summary of the Invention

[0006] The purpose of the present utility model is to solve the above defects and provide an optical glue laminating mechanism to solve the technical problems that the pressing and laminating structure of the optical glue in the above background technology is relatively simple, thus affecting the pressing and laminating effects and quality.

[0007] The purpose of the present utility model is achieved in the following way:

[0008] An optical glue laminating mechanism includes a mounting plate, a unwind roller and a windup roller arranged on the mounting plate. One end of the mounting plate is provided with a film guiding roller and a film transfer roller for driving the substrate. A glue applying component is connected to the mounting plate, and the output end of the glue applying component extends towards the surface of the substrate. An extrusion roller is connected to the mounting plate through a support frame. A lifting cylinder is arranged on the extrusion roller, and the telescopic end of the lifting cylinder is connected to the extrusion roller and can drive the extrusion roller to move towards the film transfer roller. A laminating block is arranged on the mounting plate, and a laminating pressure groove is formed on the side surface of the laminating block. The unwind roller is connected with a diaphragm for laminating the substrate through a material tray. One end of the diaphragm passes through the unwind roller and extends towards the laminating pressure groove and contacts the substrate. A laminating roller is arranged on the mounting plate, and a laminating pressure plate is connected to the laminating roller through a bushing. One end of the laminating pressure plate extends towards the laminating pressure groove, and a buffer member is arranged on the side surface of the laminating pressure plate.

[0009] Further, in the above description, the glue applying component is composed of a spray gun and a support frame. The support frame is arranged on the mounting plate, the spray gun is installed on the support frame, and the output end of the spray gun extends towards the substrate.

[0010] Specifically, the spray gun is connected to an external glue supply device, so that it can drive the spray gun to spray glue on the upper surface of the substrate.

[0011] In some embodiments, by arranging a plurality of spray guns to evenly coat glue on the upper surface of the substrate, the effect of glue coating on the substrate surface is improved, which is beneficial to subsequent laminating.

[0012] Further, in the above description, the windup roller is arranged on the mounting plate, and one end of the windup roller passes through the mounting plate and is connected to a first driving source. A winding baffle is arranged on the windup roller.

[0013] Further in the above description, the unwinding roller is arranged on the mounting plate, and one end of the unwinding roller passes through the mounting plate and is connected with a second driving source. Both the first driving source and the second driving source are composed of magnetic powder controllers.

[0014] Specifically, by electrically connecting the set first driving source and second driving source to an external controller, the controller is used to control the first driving source and the second driving source to drive, so as to drive the winding roller to wind respectively, and drive the unwinding roller to unwind the diaphragm.

[0015] Further in the above description, the buffer member includes a buffer spring and a support plate. The support plate is installed on the mounting plate. One end of the buffer spring is connected with the support plate, and the other end of the buffer spring is connected with the film laminating pressing plate.

[0016] Through the arranged buffer spring, when the diaphragm and the substrate enter the film laminating groove, the diaphragm on the unwinding roller is pressed against the substrate coated with glue, so that under the drive of the first driving source and the second driving source, the diaphragm and the substrate are laminated through the film laminating pressing plate. The arranged buffer spring can buffer and protect the diaphragm and the substrate, and reduce the lamination damage to the diaphragm and the substrate.

[0017] Further in the above description, a protective cover is arranged on the mounting plate. The protective cover is provided with a feeding port and a discharging port. The side surface of the protective cover is provided with a through ventilation hole, and a fan is connected inside the protective cover. An electrostatic eliminator is arranged inside the protective cover.

[0018] Further in the above description, the side surface of the film laminating block is connected with an adjusting rod through a locking block. One end of the adjusting rod extends towards the film laminating groove and is connected with a limiting block. The locking block is provided with a locking bolt for locking the adjusting rod.

[0019] Specifically, through the adjusting rod connected with the limiting block, the adjusting rod can adjust the limit of the film lamination according to the requirements, and improve the effect and quality of the film lamination.

[0020] Advantages of the present utility model: The output end of the glue - coating assembly extends to the surface of the substrate, ensuring that the glue can be accurately and evenly coated on the substrate, providing a good basis for the subsequent film - laminating operation. By connecting the extrusion roller with a lifting cylinder, the distance between the extrusion roller and the film - conveying roller can be flexibly adjusted to adapt to substrates of different thicknesses and materials, ensuring uniform pressure distribution during the conveyance of the substrate after glue - coating, effectively improving the flatness of the substrate and the even distribution of the glue on the substrate. The design of the film - laminating grooves on the film - laminating block makes the contact between the diaphragm and the substrate closer. The film - laminating roller is connected to the film - laminating pressing plate through a bushing, and at the same time, the buffer member on the side of the film - laminating pressing plate can absorb the impact force during the film - laminating process, protecting the substrate and the diaphragm from damage, improving the film - laminating effect, ensuring the stability and reliability during the film - laminating process, and through the film - laminating grooves and the film - laminating pressing plate for pressing and laminating the substrate and the diaphragm, further improving the smooth covering of the film - laminating, reducing the generation of wrinkles and bubbles, and improving the production quality. Description of the Drawings

[0021] Figure 1 It is a schematic diagram of the partial structure of this embodiment;

[0022] Figure 2 It is a schematic diagram of the overall structure of this embodiment;

[0023] Figure 3 It is the front view of this embodiment;

[0024] Figure 4 It is a schematic diagram of the internal structure of the protective cover in this embodiment;

[0025] Figure 5 It is a schematic diagram of the structure from the rear - view angle in this embodiment;

[0026] The reference numerals in the drawings are respectively: 1 - mounting plate, 2 - unwinding roller, 3 - winding roller, 4 - film - guiding roller, 5 - film - conveying roller, 6 - support frame, 7 - extrusion roller, 8 - lifting cylinder, 9 - film - laminating block, 10 - film - laminating pressing plate, 11 - film - laminating roller, 12 - bushing, 13 - spray gun, 14 - support frame, 15 - first driving source, 16 - receiving material baffle, 17 - second driving source, 18 - buffer spring, 19 - support plate, 20 - protective cover, 21 - fan, 22 - static eliminator, 23 - adjusting rod, 24 - limiting block, 25 - film - laminating groove. Detailed Description of the Embodiment

[0027] The present utility model will be further described in detail below in conjunction with the drawings and the specific embodiments.

[0028] In this embodiment, refer to Figures 1-5, an optical adhesive film laminating mechanism for its specific implementation, includes a mounting plate 1, a unwind roller 2 and a windup roller 3 arranged on the side of the mounting plate 1. One end of the mounting plate 1 is provided with a film guiding roller 4 and a film transferring roller 5 for driving the substrate. A glue coating assembly is connected to the side of the mounting plate 1, and the output end of the glue coating assembly extends towards the surface of the substrate. A pressing roller 7 is connected to the side of the mounting plate 1 through a support frame 6. A lifting cylinder 8 is arranged in the middle of the pressing roller 7. The telescopic end of the lifting cylinder 8 is connected to the pressing roller 7 and can drive the pressing roller 7 to move towards the film transferring roller 5. A film laminating block 9 is arranged on the side of the mounting plate 1. A film laminating groove 25 is formed on the side of the film laminating block 9. The unwind roller 2 is connected with a diaphragm for laminating the substrate through a coil. One end of the diaphragm passes through the unwind roller 2 and extends towards the film laminating groove 25 and contacts the substrate. A film laminating roller 11 is arranged on the mounting plate 1. The film laminating roller 11 is connected with a film laminating pressing plate 10 through a bushing 12. One end of the film laminating pressing plate 10 extends towards the film laminating groove 25, and a buffer member is arranged on the side of the film laminating pressing plate 10.

[0029] In this embodiment, the glue coating assembly is composed of a spray gun 13 and a support frame 14. The support frame 14 is arranged on the side of the mounting plate 1 close to the film guiding roller 4. The spray gun 13 is installed on the support frame 14, and the output end of the spray gun 13 extends towards the substrate. Specifically, the spray gun 13 is connected to an external glue supply device, so that it can drive the spray gun 13 to spray glue on the upper surface of the substrate.

[0030] In some embodiments, four spray guns 13 are arranged to uniformly coat glue on the upper surface of the substrate, so as to improve the effect of glue coating on the substrate surface and facilitate subsequent film lamination.

[0031] In this embodiment, the windup roller 3 is arranged on the mounting plate 1, and one end of the windup roller 3 passes through the mounting plate 1 and is connected with a first driving source 15. A winding material baffle 16 is arranged on the windup roller 3. The unwind roller 2 is arranged on the mounting plate 1, and one end of the unwind roller 2 passes through the mounting plate 1 and is connected with a second driving source 17. Both the first driving source 15 and the second driving source 17 are composed of magnetic powder controllers. Specifically, by arranging the first driving source 15 and the second driving source 17 to be electrically connected to an external controller, the controller is used to control the first driving source 15 and the second driving source 17 to drive, so as to drive the windup roller 3 to wind up respectively, and drive the unwind roller 2 to unwind the diaphragm.

[0032] In this embodiment, the buffer member includes a buffer spring 18 and a support plate 19. The support plate 19 is installed on the mounting plate 1. One end of the buffer spring 18 is connected to the support plate 19, and the other end of the buffer spring 18 is connected to the film laminating press plate 10. By providing the buffer spring 18, when the diaphragm and the substrate enter the film laminating groove 25, the diaphragm on the unwinding roller 2 is pressed against the substrate coated with glue, so that under the drive of the first drive source 15 and the second drive source 17, the diaphragm and the substrate are laminated through the film laminating press plate 10. The provided buffer spring 18 can buffer and protect the diaphragm and the substrate, reducing the lamination damage to the diaphragm and the substrate.

[0033] In this embodiment, a protective cover 20 is provided on the side of the mounting plate 1. Feeding ports and discharging ports are respectively provided at the upper and lower ends of the protective cover 20. A through ventilation hole is provided on the side of the protective cover 20, and a fan 21 is connected inside the protective cover 20. An electrostatic eliminator 22 is provided inside the protective cover 20.

[0034] In this embodiment, an adjusting rod 23 is connected to the side of the film laminating block 9 through a locking block. One end of the adjusting rod 23 extends towards the film laminating groove 25 and is connected with a limiting block 24. A locking bolt for locking the adjusting rod 23 is provided on the locking block. Specifically, through the adjusting rod 23 connected with the limiting block 24, the adjusting rod 23 can adjust the limit of the film lamination according to requirements, improving the effect and quality of the film lamination.

[0035] The specific process of film lamination in this embodiment is as follows:

[0036] Unwinding: Prepare the substrate and diaphragm to be laminated. Pass the external substrate through the corresponding structures in sequence, and wind one end of the substrate onto the winding roller 3. The diaphragm is installed on the unwinding roller 2, so that it can perform unwinding and film lamination actions under the drive of the first drive source 15 and the second drive source 17;

[0037] Gluing: When the substrate to be laminated passes through the film guiding roller 4 and the film transferring roller 5, the gluing assembly provided on the side of the mounting plate 1 coats the upper surface of the substrate with glue. The glue is evenly coated on the upper surface of the substrate through the spray gun 13. When the substrate coated with glue passes through the film transferring roller 5, the lifting cylinder 8 is adjusted to drive the pressing roller 7 to roll-press the lower surface of the substrate, thereby controlling the thickness of the glue layer and the uniformity of the glue passing through;

[0038] Laminating and film covering: Driven by the first driving source 15, the base material passes through the film covering groove 25 of the film covering block 9. By driving the second driving source 17 to drive the diaphragm to rotate and convey, the diaphragm and the base material are tightly pressed together under the action of the film covering pressing plate 10, so that the diaphragm is closely attached to the base material. At the same time, air bubbles are removed, further improving the smooth covering of the film, reducing the generation of wrinkles and bubbles, improving the production quality. At the same time, the buffer spring 18 on the side of the film covering pressing plate 10 can absorb the impact force during the film covering process, protect the base material and the diaphragm from damage, improve the film covering effect, and ensure the stability and reliability during the film covering process;

[0039] Dust removal: The optical glue formed by film covering passes through the feeding port of the protective cover 20 and is discharged through the discharging port. The fan 21 is used to quickly bond it, and the static eliminator 22 can eliminate the static electricity generated during the pressing of the optical glue;

[0040] Rewinding: Driven by the first driving source 15, the optical glue covered with film is wound on the winding roller 3.

[0041] In summary, the provided film covering mechanism can further improve the film covering effect, ensure the stability and reliability during the film covering process, and improve the film covering quality of the optical glue.

[0042] The above is only a preferred embodiment of the present invention, and it does not impose any form of limitation on the present invention. Although the present invention is disclosed above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art, without departing from the technical solution scope of the present invention, when making some changes or modifications using the above-disclosed technical content as equivalent change equivalent embodiments, but as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical meaning of the present invention shall fall within the scope of the technical solution of the present invention.

Claims

1. An optical adhesive laminating mechanism, comprising a mounting plate and an unwinding roller and a winding roller arranged on the mounting plate, characterized in that: One end of the mounting plate is provided with a film guide roller and a film transfer roller for transmitting the substrate, a glue coating assembly is connected to the mounting plate, the output end of the glue coating assembly extends toward the surface of the substrate, an extrusion roller is connected to the mounting plate through a support frame, a lifting cylinder is provided on the extrusion roller, the telescopic end of the lifting cylinder is connected to the extrusion roller, and the extrusion roller can be driven to move toward the film transfer roller, a coating block is provided on the mounting plate, a coating pressure groove is formed on the side of the coating block, the unwinding roller is connected to a diaphragm for coating the substrate through a material tray, one end of the diaphragm passes through the unwinding roller and extends to the coating pressure groove and contacts with the substrate, a coating roller is provided on the mounting plate, the coating roller is connected to a coating pressure plate through a shaft sleeve, one end of the coating pressure plate extends to the coating pressure groove, and a buffer is provided on the side of the coating pressure plate.

2. The optical adhesive coating mechanism according to claim 1, characterized in that: The glue coating assembly is composed of a spray gun and a support frame. The support frame is arranged on the mounting plate, the spray gun is mounted on the support frame, and the output end of the spray gun extends toward the substrate.

3. The optical adhesive coating mechanism according to claim 1, characterized in that: The winding roller is arranged on the mounting plate, and one end of the winding roller passes through the mounting plate and is connected to a first driving source, and a material receiving baffle is arranged on the winding roller.

4. The optical adhesive laminating mechanism according to claim 1, characterized in that: The unwinding roller is arranged on the mounting plate, and one end of the unwinding roller passes through the mounting plate and is connected to a second driving source, and both the first driving source and the second driving source are composed of a magnetic powder controller.

5. The optical adhesive coating mechanism according to claim 1, characterized in that: The buffer component comprises a buffer spring and a support plate, wherein the support plate is mounted on the mounting plate, one end of the buffer spring is connected to the support plate, and the other end of the buffer spring is connected to the laminating pressing plate.

6. An optical adhesive coating mechanism according to any one of claims 1 to 5, characterized in that: The mounting plate is provided with a protective cover, which is provided with a material inlet and a material outlet, a conductive ventilation hole is provided on the side of the protective cover, a fan is connected to the inside of the protective cover, and a static eliminator is arranged in the protective cover.

7. An optical adhesive coating mechanism according to any one of claims 1 to 5, characterized in that: The side of the coating block is connected with an adjusting rod through a locking block, one end of the adjusting rod extends toward the coating pressing groove and is connected with a limiting block, and a locking bolt for locking the adjusting rod is arranged on the locking block.

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