Automatic optical film laminating device

Abstract

The utility model discloses an automatic optical film laminating device which comprises a rack, a film rolling cylinder, a film guide rod, a film pressing mechanism, a film cutting mechanism, a feeding conveying mechanism and a discharging conveying mechanism, the feeding conveying mechanism and the discharging conveying mechanism are arranged on the two sides of the film pressing mechanism respectively, and the film cutting mechanism is arranged on the top of the film pressing mechanism. When the optical film laminating machine is used for laminating, the feeding conveying mechanism can convey an optical film into the film pressing mechanism, meanwhile, a protective film on the film rolling cylinder is conveyed into the film pressing mechanism through the film guiding rod and is located on the upper surface of the optical film, and then the film pressing mechanism can laminate the protective film on the surface of the optical film through the pressure effect. And finally, the film cutting mechanism can cut the rolled protective film so as to separate the rolled protective film, the separated optical film can be discharged and conveyed through the discharging and conveying mechanism, the whole film covering process is automatically carried out, the tedious operation of manual operation is omitted, and the production efficiency is high.

Description

Technical Field

[0001] The utility model relates to the field of film laminating devices, in particular to an automatic film laminating device for optical films. Background Art

[0002] At present, the use and processing technology of optical films in the die-cutting industry are not the same. It is easier to cut the roll into sheets, but the optical film after cutting is subjected to traditional manual lamination process. Manual operation wastes time and labor costs. Therefore, more and more companies need to adopt automated lamination equipment.

[0003] In the prior art, automated laminating equipment often requires the provision of a roll substrate for use by the laminating equipment. However, there is currently no device for automatic lamination of sheet-like optical films, so manual lamination is still commonly used, resulting in a large waste of time and cost for enterprises.

[0004] Therefore, the prior art has defects and needs to be improved. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an automatic film laminating device for optical films which can improve production efficiency and is practical and convenient.

[0006] To achieve this purpose, the utility model adopts the following technical solutions: an automatic film laminating device for optical films, including a frame, a film roll, a film guide rod, a film pressing mechanism, a film cutting mechanism, a material loading and conveying mechanism, and a material unloading and conveying mechanism;

[0007] The film roll is arranged on the top of the frame, and is used to roll up a protective film that is laminated to the surface of the optical film. The film pressing mechanism is arranged below the film roll, and the film guide rod is arranged between the film roll and the film pressing mechanism. The film guide rod is used to guide and transport the protective film on the film roll to the film pressing mechanism.

[0008] The loading and conveying mechanism and the unloading and conveying mechanism are respectively arranged on both sides of the film pressing mechanism, the loading and conveying mechanism is used to convey the optical film to be coated into the film pressing mechanism, the film pressing mechanism is used to press the protective film on the surface of the optical film, the film cutting mechanism is arranged on the top of the film pressing mechanism, the film cutting mechanism is used to cut the coated protective film, and the unloading and conveying mechanism is used to unload and convey the coated optical film;

[0009] The film pressing mechanism includes a support plate, a driving assembly, an active pressure roller, a driven pressure roller and a lifting assembly; the two support plates are respectively arranged on both sides of the frame, the two driven pressure rollers and the two active pressure rollers are respectively arranged up and down between the two support plates, a first gap for the optical film and the protective film to pass through is formed between the driven pressure roller and the active pressure roller, the driving assembly is connected to the active pressure roller to drive the active pressure roller to rotate, and the lifting assembly is connected to the driven pressure roller to adjust the pressure of the driven pressure roller on the optical film.

[0010] By adopting the above technical scheme, in the automatic laminating device for optical films, the film cutting mechanism includes a top plate, a first cylinder, a cutting knife and a film cutting seat, the top plate is arranged above the driven pressure roller, the first cylinder is arranged on the top plate, the movable end of which is arranged downward and is connected to the cutting knife, a second gap for the cutting knife to be lifted and lowered is formed between the two driven pressure rollers, the film cutting seat is arranged in the second gap, and the film cutting seat is provided with a cutting groove for accommodating the cutting knife.

[0011] By adopting the above-mentioned technical solutions, in the automatic laminating device for optical films, the lifting assembly includes a second cylinder, a floating joint, a slide rail, an elastic body and a connecting block;

[0012] The second cylinder is arranged on the top of the support plate, the movable end of the second cylinder is arranged downward and is connected to the top of the elastic body through the floating joint, the bottom of the elastic body is connected to the axial end of the driven pressure roller through the connecting block, the slide rail is vertically arranged on the support plate, and the slide rail is connected to the connecting block through a slider.

[0013] By adopting the above-mentioned technical solutions, in the automatic laminating device for optical films, the feeding and conveying mechanism comprises a fixed plate, a first conveying frame, a second conveying frame, a bidirectional screw and an adjusting handle;

[0014] The fixed plate is arranged on the frame, the two first conveying frames are arranged at intervals in the middle of the fixed plate, and the second conveying frame is arranged on the outer side of the first conveying frame;

[0015] The two threaded ends of the bidirectional screw are respectively connected to the second conveying frame through a threaded seat, and the two second conveying frames move toward or away from each other as the bidirectional screw rotates. The adjustment handle is connected to the end of the bidirectional screw to drive the bidirectional screw to rotate. The first conveying frame is provided with an avoidance groove for preventing the bidirectional screw from passing through.

[0016] By adopting the above-mentioned technical solutions, in the automatic optical film laminating device, the first conveyor frame and the second conveyor frame have the same structure, both of which include a mounting plate, a pulley, a driving motor and a transmission bar. The plurality of pulleys are respectively arranged at intervals along the length direction of the mounting plate, and the plurality of pulleys are connected by the transmission bar. The driving motor is connected to one of the pulleys to drive the transmission bar to rotate, and the transmission bar is used to carry and convey the optical film.

[0017] By adopting the above-mentioned technical solutions, in the automatic optical film laminating device, the feeding and conveying mechanism also includes a slide rod, and the two slide rods are respectively arranged on both sides of the bidirectional screw and are sleeved and connected to the bottom of the mounting plate, and the mounting plate can slide along the length direction of the slide rod.

[0018] By adopting the above-mentioned technical solutions, in the optical film automatic laminating device, the loading and conveying mechanism further includes a supporting conveyor belt, and the supporting conveyor belt is arranged between the two first conveying frames to support and convey the optical film.

[0019] By adopting the above-mentioned technical solutions, the automatic optical film laminating device further includes a material unloading tray, which is arranged at the discharge end of the material unloading conveying mechanism to stack and collect the optical films that have been coated.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] During lamination, the utility model can place the optical film on the loading and conveying mechanism, which can convey the optical film to the film pressing mechanism. At the same time, the protective film on the film roll is also conveyed to the film pressing mechanism through the film guide rod, and the protective film is located on the upper surface of the optical film. Then the film pressing mechanism can coat the protective film on the surface of the optical film through pressure, thereby laminating the optical film. Finally, the film cutting mechanism can cut the rolled protective film for separation, and the separated optical film can be unloaded and conveyed by the unloading and conveying mechanism. The entire laminating process is automated, eliminating the tedious manual operation and achieving high production efficiency. In addition, the first conveying frame and the second conveying frame of the loading and conveying mechanism can support and convey the optical film, and the spacing of the second conveying frame is adjustable to accommodate the conveying of optical films of different widths. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the film pressing mechanism of the utility model;

[0026] Figure 3 It is a schematic diagram of the local structure of the film pressing mechanism of the utility model;

[0027] Figure 4 This is a schematic diagram of the film cutting mechanism structure of the utility model;

[0028] Figure 5 This is a schematic diagram of the structure of the feeding and conveying mechanism of the utility model;

[0029] Figure 6 It is a structural schematic diagram of the material feeding and conveying mechanism of the utility model. DETAILED DESCRIPTION

[0030] In order to make the utility model's purpose, features, and advantages more obvious and easy to understand, the following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the embodiments described below are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0032] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0033] like Figures 1 to 6 As shown, the embodiment of the utility model provides an automatic film laminating device for optical films, including a frame 1, a film roll 2, a film guide rod 3, a film pressing mechanism 4, a film cutting mechanism 5, a loading and conveying mechanism 6, and a unloading and conveying mechanism 7. The film roll 2 is arranged on the top of the frame 1, and the film roll 2 is used to roll up a protective film that is laminated with the surface of the optical film. The film pressing mechanism 4 is arranged below the film roll 2, and the film guide rod 3 is arranged between the film roll 2 and the film pressing mechanism 4. The film guide rod 3 is used to roll the protective film on the film roll 2. The protective film guide is conveyed to the film pressing mechanism 4, the loading conveying mechanism 6 and the unloading conveying mechanism 7 are respectively arranged on both sides of the film pressing mechanism 4, the loading conveying mechanism 6 is used to convey the optical film to be coated into the film pressing mechanism 4, the film pressing mechanism 4 is used to press the protective film on the surface of the optical film, the film cutting mechanism 5 is arranged on the top of the film pressing mechanism 4, the film cutting mechanism 5 is used to cut the coated protective film, and the unloading conveying mechanism 7 is used to unload and convey the coated optical film. During operation, the optical film can be placed on the loading and conveying mechanism 6, which can convey the optical film to the film pressing mechanism 4. At the same time, the protective film on the film roll 2 is also conveyed to the film pressing mechanism 4 through the film guide rod 3, and the protective film is located on the upper surface of the optical film. Then, the film pressing mechanism 4 can coat the protective film on the surface of the optical film through pressure, thereby achieving the coating of the optical film. Finally, the film cutting mechanism 5 can cut the rolled protective film for separation, and the separated optical film can be unloaded and conveyed through the unloading and conveying mechanism 7.

[0034] like Figures 1 to 3As shown, the laminating mechanism 4 includes a support plate 41, a driving assembly 42, an active pressure roller 43, a driven pressure roller 44 and a lifting assembly 45; two support plates 41 are respectively arranged on both sides of the frame 1, two driven pressure rollers 44 and two active pressure rollers 43 are respectively arranged between the two support plates 41, a first gap for the optical film and the protective film to pass through is formed between the driven pressure roller 44 and the active pressure roller 43, the driving assembly 42 is connected to the active pressure roller 43 to drive the active pressure roller 43 to rotate, and the lifting assembly 45 is connected to the driven pressure roller 44 to adjust the pressure of the driven pressure roller 44 on the optical film. During operation, when the optical film and the protective film pass through the first gap between the active pressure roller 43 and the driven pressure roller 44, the lifting assembly 45 can adjust the pressure of the driven pressure roller 44 on the optical film, so that the protective film and the surface of the optical film are tightly combined to complete the laminating process. It should be noted that the driving assembly 42 is a publicly known motor-driven pulley 632 transmission structure, and the structure and working principle of the driving assembly 42 will not be described in detail herein.

[0035] like Figure 4 As shown, further, the film cutting mechanism 5 includes a top plate 51, a first cylinder 52, a cutting knife 53 and a film cutting seat 54. The top plate 51 is arranged above the driven pressure roller 44. The first cylinder 52 is arranged on the top plate 51, and its movable end is arranged downward and connected to the cutting knife 53. A second gap for the lifting and lowering movement of the cutting knife 53 is formed between the two driven pressure rollers 44. The film cutting seat 54 is arranged in the second gap, and a cutting groove 540 for accommodating the cutting knife 53 is provided on the film cutting seat 54. When the optical film is completed with film coating, the first cylinder 52 can control the movement of the cutting knife 53 so that the cutting knife 53 cuts the protective film, thereby realizing the separation of the optical film. It should be noted that the film cutting seat 54 can play a role in supporting and positioning the cutting knife 53 to improve the accuracy and stability of cutting.

[0036] like Figure 3As shown, further, the lifting assembly 45 includes a second cylinder 451, a floating joint 452, a slide rail 453, an elastic body 454 and a connecting block 455. The second cylinder 451 is arranged on the top of the support plate 41. The movable end of the second cylinder 451 is arranged downward and connected to the top of the elastic body 454 through the floating joint 452. The bottom of the elastic body 454 is connected to the shaft end of the driven pressure roller 44 through the connecting block 455. The slide rail 453 is vertically arranged on the support plate 41, and the slide rail 453 is connected to the connecting block 455 through a slider 456. The second cylinder 451 can drive the driven pressure roller 44 to perform lifting and lowering motion through the connecting block 455 to adjust the laminating pressure of the driven pressure roller 44 on the optical film. The elastic body 454 can protect the optical film from sudden impact or overload through elastic action. The setting of the slide rail 453 can improve the stability of the lifting and lowering motion.

[0037] like Figure 5 As shown, further, the loading and conveying mechanism 6 includes a fixed plate 61, a first conveying frame 62, a second conveying frame 63, a bidirectional screw 64 and an adjusting handle 65. The fixed plate 61 is arranged on the frame 1, and the two first conveying frames 62 are respectively arranged at intervals in the middle of the fixed plate 61, and the second conveying frame 63 is arranged on the outer side of the first conveying frame 62. The two threaded ends of the bidirectional screw 64 are respectively connected to a second conveying frame 63 through a threaded seat 66, and the two second conveying frames 63 move toward or away from each other as the bidirectional screw 64 rotates. The adjusting handle 65 is connected to the end of the bidirectional screw 64 to drive the bidirectional screw 64 to rotate. The first conveying frame 62 is provided with an avoidance groove 621 for avoiding the bidirectional screw 64 to pass through. The first conveying rack 62 and the second conveying rack 63 can support and convey the optical film, wherein the distance between the two second conveying racks 63 is adjustable to accommodate the conveying of optical films of different widths, which is practical and convenient. When the distance between the two second conveying racks 63 needs to be adjusted, it is only necessary to rotate the adjustment handle 65. At this time, the second conveying racks 63 can move toward or away from each other as the bidirectional screw 64 rotates, and the adjustment method is simple and convenient.

[0038] like Figure 5As shown, further, the first conveying frame 62 and the second conveying frame 63 have the same structure, both of which include a mounting plate 631, a pulley 632, a driving motor 633 and a transmission bar 634. The plurality of pulleys 632 are arranged at intervals along the length direction of the mounting plate 631, and the plurality of pulleys 632 are connected by the transmission bar 634. The driving motor 633 is connected to one of the pulleys 632 to drive the transmission bar 634 to rotate. The transmission bar 634 is used to carry and transport the optical film. When the driving motor 633 rotates, the transmission bar 634 can be driven to rotate around the pulley 632 to transport the optical film. The pulley 632 can be used to support the transmission bar 634 to support the transmission bar 634 and prevent the transmission bar 634 from being deformed.

[0039] like Figure 5 As shown, further, the feeding conveying mechanism 6 also includes a slide bar 67, two of the slide bars 67 are respectively arranged on both sides of the bidirectional screw 64, and are sleeved and connected with the bottom of the mounting plate 631, and the mounting plate 631 can slide along the length direction of the slide bar 67. The setting of the slide bar 67 can improve the stability of the movement and adjustment of the second conveying frame 63.

[0040] like Figure 5 As shown, further, the feeding conveying mechanism 6 also includes a supporting conveying belt 68, which is arranged between the two first conveying frames 62 to support and convey the optical film. The arrangement of the supporting conveying belt 68 can ensure that the optical film can be conveyed smoothly.

[0041] like Figure 1 and Figure 6 As shown, further, a material unloading tray 8 is included, and the material unloading tray 8 is arranged at the discharge end of the material unloading conveying mechanism 7, so as to stack and collect the optical film sheets that have been coated. When the optical film sheets have completed the coating process and are conveyed to the discharge end by the conveying mechanism, the material unloading tray 8 can receive the optical film sheets that have been coated, so as to facilitate subsequent packaging, transportation or processing, thereby improving production efficiency.

[0042] As described above, the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. An automatic laminating device for optical films, characterized in that: It includes a frame, a film rolling drum, a film guide rod, a film pressing mechanism, a film cutting mechanism, a loading and conveying mechanism, and a unloading and conveying mechanism; The film roll is arranged on the top of the frame, and is used to roll up a protective film that is laminated to the surface of the optical film. The film pressing mechanism is arranged below the film roll, and the film guide rod is arranged between the film roll and the film pressing mechanism. The film guide rod is used to guide and transport the protective film on the film roll to the film pressing mechanism. The loading and conveying mechanism and the unloading and conveying mechanism are respectively arranged on both sides of the film pressing mechanism, the loading and conveying mechanism is used to convey the optical film to be coated into the film pressing mechanism, the film pressing mechanism is used to press the protective film on the surface of the optical film, the film cutting mechanism is arranged on the top of the film pressing mechanism, the film cutting mechanism is used to cut the coated protective film, and the unloading and conveying mechanism is used to unload and convey the coated optical film; The film pressing mechanism includes a support plate, a driving assembly, an active pressure roller, a driven pressure roller and a lifting assembly; the two support plates are respectively arranged on both sides of the frame, the two driven pressure rollers and the two active pressure rollers are respectively arranged up and down between the two support plates, a first gap for the optical film and the protective film to pass through is formed between the driven pressure roller and the active pressure roller, the driving assembly is connected to the active pressure roller to drive the active pressure roller to rotate, and the lifting assembly is connected to the driven pressure roller to adjust the pressure of the driven pressure roller on the optical film.

2. The automatic optical film laminating device according to claim 1, characterized in that: The film cutting mechanism includes a top plate, a first cylinder, a cutting knife and a film cutting seat. The top plate is arranged above the driven pressure roller. The first cylinder is arranged on the top plate, and its movable end is arranged downward and connected to the cutting knife. A second gap for the cutting knife to be lifted and lowered is formed between the two driven pressure rollers. The film cutting seat is arranged in the second gap, and a cutting groove for accommodating the cutting knife is provided on the film cutting seat.

3. The automatic optical film laminating device according to claim 1, characterized in that: The lifting assembly includes a second cylinder, a floating joint, a slide rail, an elastic body and a connecting block; The second cylinder is arranged on the top of the support plate, the movable end of the second cylinder is arranged downward and is connected to the top of the elastic body through the floating joint, the bottom of the elastic body is connected to the axial end of the driven pressure roller through the connecting block, the slide rail is vertically arranged on the support plate, and the slide rail is connected to the connecting block through a slider.

4. The automatic optical film laminating device according to claim 1, characterized in that: The feeding conveying mechanism comprises a fixed plate, a first conveying frame, a second conveying frame, a bidirectional screw and an adjusting handle; The fixed plate is arranged on the frame, the two first conveying frames are arranged at intervals in the middle of the fixed plate, and the second conveying frame is arranged on the outer side of the first conveying frame; The two threaded ends of the bidirectional screw are respectively connected to the second conveying frame through a threaded seat, and the two second conveying frames move toward or away from each other as the bidirectional screw rotates. The adjustment handle is connected to the end of the bidirectional screw to drive the bidirectional screw to rotate. The first conveying frame is provided with an avoidance groove for preventing the bidirectional screw from passing through.

5. The automatic optical film laminating device according to claim 4, characterized in that: The first conveyor frame and the second conveyor frame have the same structure, and both include a mounting plate, a pulley, a driving motor and a transmission bar. The plurality of pulleys are respectively arranged at intervals along the length direction of the mounting plate, and the plurality of pulleys are connected by the transmission bar. The driving motor is connected to one of the pulleys to drive the transmission bar to rotate, and the transmission bar is used to carry and convey the optical film.

6. The automatic optical film laminating device according to claim 5, characterized in that: The feeding and conveying mechanism also includes a slide bar. The two slide bars are respectively arranged on both sides of the bidirectional screw and are sleeved and connected with the bottom of the mounting plate. The mounting plate can slide along the length direction of the slide bar.

7. The automatic optical film laminating device according to claim 4, characterized in that: The loading and conveying mechanism further includes a supporting conveying belt, and the supporting conveying belt is arranged between the two first conveying frames for supporting and conveying the optical film.

8. The automatic optical film laminating device according to claim 1, characterized in that: It also includes a material unloading tray, which is arranged at the discharge end of the material unloading conveying mechanism and is used for stacking and collecting the optical films that have been coated.

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