Light guide film feeding mechanism for keyboard backlight module

Abstract

The utility model discloses a light guide film feeding mechanism for a keyboard backlight module, and relates to the technical field of light guide film processing. When the light guide film feeding device is used for feeding a light guide film, release paper on the two faces of the head of the light guide film is separated, and then the light guide film is horizontally guided by the second guide roller and tensioned by the first tensioning mechanism under the separating and guiding action of the separating mechanism, so that the light guide film is in a tensioned state, normal use of the light guide film after feeding is facilitated, and the light guide film feeding device is simple in structure and convenient to operate. After the release paper is separated by the separating mechanism, the separated release paper is in a tensioned state under the tensioning and guiding effects of the two second tensioning mechanisms, so that the stripped release paper can be conveniently and orderly wound on a winding roller, the subsequent secondary utilization of the release paper is facilitated, materials are saved, and the production efficiency is improved. In the tensioning state, the situation that the light guide film and the release paper are not damaged after being peeled off is ensured, and the situation that manual operation wastes time and labor and is low in efficiency is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of light guide film processing, in particular to a light guide film feeding mechanism for a keyboard backlight module. Background Art

[0002] Backlit keyboards originated from ordinary keyboards. Driven by the domestic game market, in order to meet the needs of more and higher-level players, keyboard developers began to research multi-functional keyboards, including backlit keyboards. Backlit keyboards are mainly reflected in the illumination of keyboard keys or panels, so that the key letters can be clearly seen at night without turning on the lights. Backlit keyboards are widely used in laptops. In addition, they are also used in keyboards connected to desktop computers.

[0003] Conventional backlit keyboards typically incorporate a keyboard backlight module to achieve a backlighting effect. These modules typically include a light-guiding film, a light-shielding film, and a reflective film. The light-shielding and reflective films are each provided with protective release paper on one side, while the light-guiding film is provided with release paper on both sides. During processing, the release paper on both sides of the light-guiding film must be removed. However, this removal process is typically manual, which is labor-intensive and inefficient. Utility Model Content

[0004] In order to solve the defects of the prior art, the utility model provides a light guide film feeding mechanism for a keyboard backlight module.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The utility model discloses a light guide film feeding mechanism for a keyboard backlight module, comprising a feeding rack, a raw material roller and two winding rollers arranged above and below the raw material roller are provided on the front of the feeding rack, a first guide roller for guiding the raw material in a horizontal direction and a separation mechanism located on one side of the first guide roller for peeling off the light guide film are provided on the feeding rack, as well as a second guide roller and a third guide roller which are arranged on the feeding rack and are on the same horizontal line as the first guide roller, a first tensioning mechanism for tensioning the light guide film is provided on the upper part between the second guide roller and the third guide roller, and a second tensioning mechanism for tightening the peeled release paper is provided on the feeding rack.

[0007] As a preferred technical solution of the present invention, the separation mechanism includes two separation rollers arranged on the loading rack and distributed up and down.

[0008] As an optimal technical solution of the present invention, the first tensioning mechanism includes a first tensioning chute opened in the vertical direction on the loading rack, a first tensioning slider matching the first tensioning chute is provided inside the first tensioning chute, and a first tensioning roller is provided on the outer wall of the first tensioning slider.

[0009] As a preferred technical solution of the present invention, the second tensioning mechanism includes a second tensioning chute opened horizontally on the loading rack, a second tensioning slider matching the second tensioning chute is provided inside the second tensioning chute, and a second tensioning roller is provided on the outer wall of the second tensioning slider.

[0010] As a preferred technical solution of the present invention, the loading rack is provided with a mounting mechanism for mounting the raw material roller and the two winding rollers.

[0011] As an optimal technical solution of the present invention, the mounting mechanism includes a mounting rod arranged on the loading rack, the length of the mounting rod is greater than the length of the raw material roller and the winding roller, and the outer end of the mounting rod is provided with a limiting component for the raw material roller.

[0012] As a preferred technical solution of the present invention, the limiting assembly includes a rectangular opening formed on the mounting rod, and a spring limiting latch is inserted into the rectangular opening.

[0013] The beneficial effects of the utility model are:

[0014] 1. This keyboard backlight module uses a light guide film feeding mechanism. When feeding the light guide film, the release papers on both sides of the light guide film head are separated. Under the separation and guiding action of the separation mechanism, the second guide roller guides the light guide film horizontally, and the first tensioning mechanism tensions the light guide film so that the light guide film is in a tensioned state, which is convenient for normal use after the light guide film is loaded. After the separation mechanism separates the release paper, under the tensioning and guiding action of the two second tensioning mechanisms, the separated release paper is in a tensioned state, which is convenient for neatly winding the peeled release paper onto the winding roller, thereby facilitating the subsequent secondary use of the release paper and saving materials. In the tensioned state, it ensures that the light guide film and the release paper will not be damaged after peeling, and avoids the time-consuming, labor-intensive and inefficient manual operation. The first guide roller guides the light guide film raw material horizontally, and the third guide roller guides the light guide film horizontally after the release paper is peeled off.

[0015] 2. This keyboard backlight module uses a light-guiding film feeding mechanism. When disassembling and replacing the raw materials and the wound release paper, take out the spring limit pin so that the spring limit pin is separated from the rectangular opening. Then, the raw material roller after the raw materials are released and the winding roller after winding can be disassembled and replaced with new ones. The disassembly and assembly structure is simple, which makes it easy to replace the raw material roller and the winding roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 This is a structural diagram of a light guide film feeding mechanism for a keyboard backlight module of the utility model;

[0018] Figure 2 This utility model is a light guide film feeding mechanism for keyboard backlight module. Figure 1 Schematic diagram of the structure at A in the middle;

[0019] Figure 3 This utility model is a light guide film feeding mechanism for keyboard backlight module. Figure 1 Schematic diagram of the structure at B in the middle;

[0020] Figure 4 The utility model is a schematic diagram of the structure of an installation mechanism of a light guide film feeding mechanism for a keyboard backlight module.

[0021] In the figure: 1. Loading rack; 2. Raw material roller; 3. Winding roller; 4. First guide roller; 5. Separating mechanism; 6. Second guide roller; 7. Third guide roller; 8. First tensioning mechanism; 9. Second tensioning mechanism; 10. Separating roller; 11. First tensioning chute; 12. First tensioning slider; 13. First tensioning roller; 14. Second tensioning chute; 15. Second tensioning slider; 16. Second tensioning roller; 17. Mounting mechanism; 18. Mounting rod; 19. Limiting assembly; 20. Rectangular opening; 21. Spring limiting latch. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0023] Example: Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the utility model is a light guide film feeding mechanism for a keyboard backlight module, comprising a feeding rack 1, a raw material roller 2 and two winding rollers 3 arranged above and below the raw material roller 2 are provided on the front of the feeding rack 1, a first guide roller 4 for guiding the raw material in a horizontal direction and a separation mechanism 5 located on one side of the first guide roller 4 for peeling off the light guide film are provided on the feeding rack 1, as well as a second guide roller 6 and a third guide roller 7 which are arranged on the feeding rack 1 and are on the same horizontal line as the first guide roller 4, a first tensioning mechanism 8 for tensioning the light guide film is provided on the upper part between the second guide roller 6 and the third guide roller 7, and a second tensioning mechanism 9 for tightening the peeled release paper is provided on the feeding rack 1.

[0024] Among them, the separation mechanism 5 includes two separation rollers 10 arranged on the loading rack 1 and distributed up and down. After the light guide film passes between the two separation rollers 10, the two release papers on the head of the light guide film are separated. The light guide film is guided under the action of the second guide roller 6, and the two release papers are respectively wound around the two second tensioning mechanisms 9, so that the separation of the light guide film and the release paper can be completed.

[0025] Among them, the first tensioning mechanism 8 includes a first tensioning chute 11 opened in the vertical direction on the loading rack 1, and a first tensioning slider 12 matching the first tensioning chute 11 is provided inside the first tensioning chute 11. The outer wall of the first tensioning slider 12 is provided with a first tensioning roller 13. After the light guide film is peeled off from the release paper, it is wound around the first tensioning roller 13. The first tensioning roller 13 drives the first tensioning slider 12 to move inside the first tensioning chute 11, which has a good tensioning effect on the light guide film.

[0026] Among them, the second tensioning mechanism 9 includes a second tensioning chute 14 opened in the horizontal direction on the loading rack 1, and a second tensioning slider 15 matching the second tensioning chute 14 is provided inside the second tensioning chute 14. The outer wall of the second tensioning slider 15 is provided with a second tensioning roller 16. After the release paper is peeled off, the release paper is wound around the second tensioning roller 16, which plays a good tensioning role, so that the release paper wound around the winding roller 3 is neat.

[0027] Among them, the loading rack 1 is provided with a mounting mechanism 17 for mounting the raw material roller 2 and the two winding rollers 3, and the mounting mechanism 17 includes a mounting rod 18 provided on the loading rack 1, and the length of the mounting rod 18 is greater than the length of the raw material roller 2 and the winding roller 3, and the outer end of the mounting rod 18 is provided with a limiting component 19 for the raw material roller 2, and the limiting component 19 includes a rectangular opening 20 opened on the mounting rod 18, and a spring limiting pin 21 is inserted into the rectangular opening 20. When the raw material and the wound release paper are disassembled and replaced, the spring limiting pin 21 is taken out so that the spring limiting pin 21 is separated from the rectangular opening 20, and the raw material roller 2 after the raw material is released and the winding roller 3 after winding can be disassembled and replaced with new ones. The disassembly and assembly structure is simple, and it is convenient to replace the raw material roller 2 and the winding roller 3.

[0028] During operation, this keyboard backlight module uses a light-guiding film feeding mechanism. When feeding the light-guiding film, the release papers on both sides of the light-guiding film head are separated. Under the separating and guiding action of the separating mechanism 5, the second guide roller 6 guides the light-guiding film horizontally, and the first tensioning mechanism 8 tensions the light-guiding film, so that the light-guiding film is in a tensioned state, which is convenient for normal use after the light-guiding film is loaded. After the separation mechanism 5 separates the release paper, under the tensioning and guiding action of the two second tensioning mechanisms 9, the separated release paper is in a tensioned state, which is convenient for neatly winding the peeled release paper onto the winding roller 3, thereby facilitating the subsequent secondary use of the release paper, saving materials, and ensuring that the light-guiding film and the release paper will not be damaged after peeling off in the tensioned state, and avoiding the time-consuming, labor-intensive and inefficient manual operation; the first guide roller 4 guides the light-guiding film raw material horizontally, and the third guide roller 7 guides the light-guiding film horizontally after the release paper is peeled off.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A light guide film feeding mechanism for a keyboard backlight module, comprising a feeding frame (1), characterized in that: The front of the loading rack (1) is provided with a raw material roller (2) and two winding rollers (3) arranged above and below the raw material roller (2); the loading rack (1) is provided with a first guide roller (4) for guiding the raw material in a horizontal direction and a separation mechanism (5) located on one side of the first guide roller (4) for peeling off the light-guiding film; and a second guide roller (6) and a third guide roller (7) arranged on the loading rack (1) and on the same horizontal line as the first guide roller (4); a first tensioning mechanism (8) for tensioning the light-guiding film is provided on the upper part between the second guide roller (6) and the third guide roller (7); and a second tensioning mechanism (9) for tightening the peeled release paper is provided on the loading rack (1).

2. The light guide film feeding mechanism for a keyboard backlight module according to claim 1, characterized in that: The separation mechanism (5) comprises two separation rollers (10) which are arranged on the loading rack (1) and are distributed up and down.

3. The light guide film feeding mechanism for a keyboard backlight module according to claim 1, characterized in that: The first tensioning mechanism (8) comprises a first tensioning chute (11) vertically provided on the loading rack (1); a first tensioning slider (12) matching the first tensioning chute (11) is provided inside the first tensioning chute (11); and a first tensioning roller (13) is provided on the outer wall of the first tensioning slider (12).

4. The light guide film feeding mechanism for a keyboard backlight module according to claim 3, characterized in that: The second tensioning mechanism (9) includes a second tensioning chute (14) opened in the horizontal direction on the loading rack (1), a second tensioning slider (15) matching the second tensioning chute (14) is provided inside the second tensioning chute (14), and a second tensioning roller (16) is provided on the outer wall of the second tensioning slider (15).

5. The light guide film feeding mechanism for a keyboard backlight module according to claim 1, characterized in that: The loading rack (1) is provided with a mounting mechanism (17) for mounting the raw material roller (2) and the two winding rollers (3).

6. The light guide film feeding mechanism for a keyboard backlight module according to claim 5, characterized in that: The mounting mechanism (17) comprises a mounting rod (18) provided on the loading rack (1); the length of the mounting rod (18) is greater than the lengths of the raw material roller (2) and the winding roller (3); and a limiting component (19) for the raw material roller (2) is provided at the outer end of the mounting rod (18).

7. The light guide film feeding mechanism for a keyboard backlight module according to claim 6, characterized in that: The limiting assembly (19) comprises a rectangular opening (20) provided on the mounting rod (18), wherein a spring limiting latch (21) is inserted into the rectangular opening (20).

Images