Automatic feeding device for optical film production

Abstract

The utility model discloses an automatic feeding device for optical film production, which comprises a base and a support frame fixedly mounted at the top end of the base, a coating device body is fixedly mounted at the bottom end of the support frame, and a first rotating shaft is arranged above the base. Under the action of the gear and the rack, the joint of the outermost layer of a rolled optical film is just in contact with the side wall of the winding roller, the rolled optical film is fixed on the surface of the winding roller under the action of glue, at the moment, the motor is started to rotate reversely, the sliding block is moved in the direction away from the winding roller, and the joint of the outermost layer of the optical film is fixed on the winding roller, so that the optical film is fixed on the winding roller. In the resetting process of the sliding block, the optical film is automatically stretched, then the second motor can be started to drive the winding roller to rotate, the coating device body coats the optical film, and through reciprocating motion of the sliding block, a connector on the outermost layer of the coiled optical film can be automatically stretched to the side wall of the winding roller and fixed. And subsequent processing operation is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of optical films, in particular to an automatic feeding device for producing optical films. Background Art

[0002] Optical film is a type of optical medium material composed of thin layered media that propagates light beams through interfaces. It can change the transmission characteristics of light waves, including light transmission, reflection, absorption, scattering, polarization and phase change, by plating or coating one or more layers of dielectric films or metal films or a combination of these two types of films on optical elements or independent substrates.

[0003] Optical films have been widely used in the fields of optics and optoelectronics to manufacture various optical instruments. In our lives, from precision optical equipment and display equipment to glasses, digital cameras, various household appliances in daily life, or anti-counterfeiting technology on banknotes, there are extensions of optical film technology. In the production process of optical films, coating is an important link. Selecting the right coating material is the first step in the optical film coating process. Common coating materials include metals, oxides, silicon and polymers. The selection of these materials is usually based on factors such as their optical properties, stability, processing performance and cost.

[0004] Patent document CN210233988U discloses a stretching device for producing breathable films, comprising a fixed frame, a bracket being fixedly connected to the rear end face of the fixed frame, a first motor and a rotating shaft being arranged left and right on the inner side of the rear end face of the bracket, and the first motor is fixedly connected to the bracket, the rotating shaft is rotatably connected to the bracket, a driving gear is fixedly connected to the end of the main shaft of the first motor, a driven gear is meshingly connected to the outer side of the driving gear, and the driven gear is fixedly connected to the rotating shaft, the front end faces of the driving gear and the front end faces of the driven gear are both fixedly connected to a first electric telescopic rod, and the first electric telescopic rod passes through the fixed frame. In the utility model, a limit block is provided, the elastic force of the first spring on the limit block and the fixed connection of the first electric telescopic rod with the positioning block are coordinated, so that the stretching roller can be quickly disassembled, and the operation is simple and convenient, which facilitates the maintenance of the stretching roller.

[0005] As in the prior art of the above-mentioned patent, during the production process of the optical film, it is necessary to stretch and unfold the rolled optical film that has not been coated, and connect it to the top of another winding roller. During the winding process of the winding roller, the coating mechanism coats the stretched and unfolded optical film. The above operation can be completed using the above-mentioned stretching device. However, after placing the rolled uncoated optical film at the corresponding position of the device, one end of the uncoated optical film needs to be manually stretched onto the winding roller and fixed. During the stretching process, the efficiency is not high and it is very likely to cause the film to tear or be damaged, which affects the production process of the optical film. Utility Model Content

[0006] The purpose of the utility model is to provide an automatic feeding device for producing optical films to solve the above-mentioned deficiencies in the prior art.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an automatic feeding device for optical film production, comprising a base and a support frame fixedly installed on the top of the base, a coating device body is fixedly installed on the bottom end of the support frame, a first rotating shaft is arranged above the base, a feeding roller is slidably installed on the first rotating shaft, a driving mechanism is arranged at one end of the first rotating shaft, a gear is fixedly installed on the first rotating shaft, a rack is fixedly installed on the top of the base, the rack and the gear are meshed with each other, two support plates are fixedly installed on the top of the base, a second rotating shaft is rotatably connected between the two support plates, a storage roller is arranged on the second rotating shaft, a gluing mechanism is arranged on the top of the base, and the gluing mechanism is arranged between the storage roller and the feeding roller.

[0008] As a further description of the above technical solution: the driving mechanism includes a slide rail, which is fixedly installed on the top of the base, and the interior of the slide rail is rotatably connected to a screw rod, and a slider is slidably installed inside the slide rail, and the slider is threadedly connected to the screw rod, and the first rotating shaft is rotatably connected to the side wall of the slider.

[0009] As a further description of the above technical solution: one end of the first rotating shaft is threadedly connected with a fixing ring.

[0010] As a further description of the above technical solution: a groove is provided at the top of the base, a storage box is elastically connected to the inside of the groove, a glue coating roller is rotatably connected to the inside of the storage box, glue is arranged inside the storage box, and the glue is arranged below the glue coating roller.

[0011] As a further description of the above technical solution: the gluing mechanism includes two fixed rods, the two fixed rods are respectively fixedly installed inside the groove, a spring is arranged inside the fixed rod, the top end of the spring is fixedly connected with a sliding rod, the sliding rod is slidably connected to the fixed rod, and two fixed blocks are fixedly installed on the top end of the sliding rod, and the two fixed blocks are respectively fixedly connected to the two ends of the storage box.

[0012] As a further description of the above technical solution: a first motor is fixedly installed at one end of the slide rail, and the output end of the first motor is transmission connected to the screw rod; a second motor is fixedly installed on the side wall of one of the support plates, and the output end of the second motor is transmission connected to the second rotating shaft.

[0013] The utility model provides an automatic feeding device for producing optical films. It has the following beneficial effects: the rolled optical film to be coated is fixed on the feeding roller, and then the driving mechanism is started to drive the slider inside the slide rail to move toward the direction of the winding roller. During the movement, the gear drives the first rotating shaft to rotate under the action of the rack. During the rotation, the joint of the outermost layer of the rolled optical film and the glue coating roller inside the glue coating mechanism rotate relative to each other, so that a certain amount of glue is applied to the joint. The driving mechanism continues to drive the slider to move toward the winding roller. When the slider moves to the end of the slide rail, at this time, under the action of the gear and the rack, the outermost layer of the rolled optical film is The joint just touches the side wall of the winding roller and is fixed to the surface of the winding roller under the action of glue. At this time, the motor is started to reverse and the slider is moved away from the winding roller. Since the joint of the outermost layer of the optical film is fixed on the winding roller, the optical film is automatically stretched during the resetting of the slider. Subsequently, the second motor can be started to drive the winding roller to rotate, and the coating device body coats the optical film. Through a reciprocating motion of the slider, the joint of the outermost layer of the rolled optical film can be automatically stretched to the side wall of the winding roller and fixed, which is convenient for subsequent processing operations.

[0014] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0015] This application document provides an overview of various implementations or examples of the technology described in the present disclosure, and is not a comprehensive disclosure of the entire scope or all features of the disclosed technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an automatic feeding device for optical film production proposed by the utility model;

[0017] Figure 2 A schematic diagram of a three-dimensional structure from another viewing angle of the present invention;

[0018] Figure 3 It is a schematic diagram of the top view structure of the utility model;

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the gluing mechanism of the utility model;

[0020] Figure 5 It is a schematic cross-sectional structure diagram of the storage box of the utility model with glue arranged inside.

[0021] Legend:

[0022] 1. Base; 2. Slide rail; 3. Screw; 4. First motor; 5. Slider; 6. First rotating shaft; 7. Gear; 8. Feeding roller; 9. Fixed ring; 10. Rack; 11. Support plate; 12. Second rotating shaft; 13. Storage roller; 14. Second motor; 15. Support frame; 16. Coating device body; 17. Fixed rod; 18. Slide rod; 19. Spring; 20. Fixed block; 21. Storage box; 22. Glue coating roller; 23. Glue; 24. Groove. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-5 , an automatic feeding device for producing optical films, comprising a base 1 and a support frame 15 fixedly mounted on the top of the base 1, a coating device body 16 fixedly mounted on the bottom end of the support frame 15, a first rotating shaft 6 is arranged above the base 1, a feeding roller 8 is slidably mounted on the first rotating shaft 6, a driving mechanism is arranged at one end of the first rotating shaft 6, a gear 7 is fixedly mounted on the first rotating shaft 6, a rack 10 is fixedly mounted on the top of the base 1, the rack 10 and the gear 7 are meshed with each other, two supporting plates 11 are fixedly mounted on the top of the base 1, a second rotating shaft 12 is rotatably connected between the two supporting plates 11, a receiving roller 13 is arranged on the second rotating shaft 12, a gluing mechanism is arranged on the top of the base 1, and the gluing mechanism is arranged between the receiving roller 13 and the feeding roller 8; the rolled optical film to be coated is fixed on the feeding roller 8, and then the driving mechanism is started to drive the slider 5 inside the slide rail 2 to move in the direction of the winding roller, and during the movement, the gear 7 moves on the rack 1 0, the first rotating shaft 6 is driven to rotate. During the rotation, the joint of the outermost layer of the rolled optical film rotates relative to the glue coating roller 22 inside the glue coating mechanism, so that a certain amount of glue 23 is coated on the joint. The driving mechanism continues to drive the slider 5 to move toward the winding roller. When the slider 5 moves to the end of the slide rail 2, at this time, under the action of the gear 7 and the rack 10, the joint of the outermost layer of the rolled optical film just contacts the side wall of the winding roller, and is fixed on the surface of the winding roller under the action of the glue 23. At this time, the motor is started to reverse and the slider 5 is moved away from the winding roller. Since the joint of the outermost layer of the optical film is fixed on the winding roller, the optical film is automatically stretched during the resetting of the slider 5. Subsequently, the second motor 14 can be started to drive the winding roller to rotate, and the coating device body 16 coats the optical film, realizing a reciprocating motion of the slider 5, so that the joint of the outermost layer of the rolled optical film can be automatically stretched to the side wall of the winding roller and fixed, which is convenient for subsequent processing operations.

[0025] As a preferred technical solution of this embodiment, the driving mechanism includes a slide rail 2, which is fixedly installed on the top of the base 1, and is rotatably connected to a screw rod 3 inside the slide rail 2. A slider 5 is slidably installed inside the slide rail 2, and the slider 5 is threadedly connected to the screw rod 3. The first rotating shaft 6 is rotatably connected to the side wall of the slider 5; when the screw rod 3 rotates, the slider 5 can move inside the slide rail 2 under the limiting action of the slider 5 and the slide rail 2.

[0026] As a preferred technical solution of this embodiment, one end of the first rotating shaft 6 is threadedly connected with a fixing ring 9; by removing the fixing ring 9, the loading roller 8 can be installed and removed, making it convenient to wind the optical film on the loading roller 8.

[0027] As a preferred technical solution of this embodiment, a groove 24 is provided at the top of the base 1, and the interior of the groove 24 is elastically connected to a storage box 21, and the interior of the storage box 21 is rotatably connected to a glue coating roller 22, and the interior of the storage box 21 is provided with glue 23, and the glue 23 is arranged below the glue coating roller 22; when the first rotating shaft 6 rotates to above the glue coating roller 22, the optical film on the glue coating roller 22 and the feeding roller 8 moves relative to each other, so that the glue 23 on the glue coating roller 22 can adhere to the joint of the optical film.

[0028] As the preferred technical solution of this embodiment, the gluing mechanism includes two fixed rods 17, and the two fixed rods 17 are respectively fixedly installed inside the groove 24. A spring 19 is arranged inside the fixed rod 17. The top of the spring 19 is fixedly connected with a sliding rod 18, and the sliding rod 18 is slidably connected to the fixed rod 17. Two fixed blocks 20 are fixedly installed on the top of the sliding rod 18, and the two fixed blocks 20 are respectively fixedly connected to the two ends of the storage box 21; the function of the spring 19 is to make the gluing roller 22 fit closely to the optical film when it contacts the joint of the optical film, so that the glue 23 is applied more evenly.

[0029] As a preferred technical solution of this embodiment, a first motor 4 is fixedly installed at one end of the slide rail 2, and the output end of the first motor 4 is transmission connected to the screw 3. A second motor 14 is fixedly installed on the side wall of one of the support plates 11, and the output end of the second motor 14 is transmission connected to the second rotating shaft 12; the first motor 4 can drive the screw 3 to rotate, and the second motor 14 can drive the second rotating shaft 12 to rotate, thereby further driving the collection roller to rotate to collect the optical film.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic feeding device for producing optical films, comprising a base (1) and a support frame (15) fixedly mounted on the top of the base (1), a coating device body (16) fixedly mounted on the bottom of the support frame (15), characterized in that: A first rotating shaft (6) is arranged above the base (1), a feeding roller (8) is slidably mounted on the first rotating shaft (6), a driving mechanism is arranged at one end of the first rotating shaft (6), a gear (7) is fixedly mounted on the first rotating shaft (6), a rack (10) is fixedly mounted on the top of the base (1), the rack (10) and the gear (7) are meshed with each other, two support plates (11) are fixedly mounted on the top of the base (1), a second rotating shaft (12) is rotatably connected between the two support plates (11), a storage roller (13) is arranged on the second rotating shaft (12), a gluing mechanism is arranged at the top of the base (1), and the gluing mechanism is arranged between the storage roller (13) and the feeding roller (8).

2. The automatic feeding device for producing optical films according to claim 1, characterized in that: The driving mechanism comprises a slide rail (2), wherein the slide rail (2) is fixedly mounted on the top of the base (1), wherein a screw rod (3) is rotatably connected inside the slide rail (2), wherein a slider (5) is slidably mounted inside the slide rail (2), wherein the slider (5) is threadedly connected to the screw rod (3), and wherein the first rotating shaft (6) is rotatably connected to the side wall of the slider (5).

3. The automatic feeding device for producing optical films according to claim 1, characterized in that: One end of the first rotating shaft (6) is threadedly connected to a fixing ring (9).

4. The automatic feeding device for producing optical films according to claim 1, characterized in that: A groove (24) is provided at the top of the base (1), a storage box (21) is elastically connected to the inside of the groove (24), a glue coating roller (22) is rotatably connected to the inside of the storage box (21), glue (23) is arranged inside the storage box (21), and the glue (23) is arranged below the glue coating roller (22).

5. The automatic feeding device for producing optical films according to claim 4, characterized in that: The glue coating mechanism comprises two fixed rods (17), the two fixed rods (17) are respectively fixedly mounted inside the groove (24), a spring (19) is arranged inside the fixed rod (17), the top end of the spring (19) is fixedly connected with a sliding rod (18), the sliding rod (18) is slidably connected to the fixed rod (17), and two fixed blocks (20) are fixedly mounted on the top end of the sliding rod (18), and the two fixed blocks (20) are respectively fixedly connected to two ends of the storage box (21).

6. The automatic feeding device for producing optical films according to claim 2, characterized in that: A first motor (4) is fixedly mounted on one end of the slide rail (2), and an output end of the first motor (4) is drivingly connected to the screw rod (3); a second motor (14) is fixedly mounted on a side wall of one of the support plates (11), and an output end of the second motor (14) is drivingly connected to the second rotating shaft (12).

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