Light guide film testing device
By introducing adjustment and connection mechanisms into the light guide film detection device, the problems of non-adjustable detection range and inconvenient roll installation are solved, achieving accurate detection and convenient operation, and improving the practicality of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG JIANA NEW MATERIALS CO LTD
- Filing Date
- 2025-08-30
- Publication Date
- 2026-07-31
AI Technical Summary
Existing light guide film testing devices cannot adjust the testing range according to testing requirements, and are inconvenient for the installation and disassembly of light guide film rolls, reducing the practicality of the devices.
An adjustment mechanism and a connection mechanism were designed. The adjustment mechanism uses a motor and a threaded sleeve to adjust the detection length, while the connection mechanism uses a push block and spring structure to facilitate the installation and removal of the drum.
It achieves both accuracy and convenience in light guide film testing, improves the practicality of the device, allows for adjustment of the testing range according to testing requirements, and facilitates the matching, installation, and disassembly of light guide film rolls.
Smart Images

Figure CN224581399U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of light guide film testing technology, specifically relating to a light guide film testing device. Background Technology
[0002] Light guide film is characterized by its ultra-thinness, uniform light emission, and diverse colors. It is mainly used in mobile phone buttons and is a product that converts the point light source of LEDs into a surface light source through colored light guide film.
[0003] A light guide film detection device with patent publication number CN219891074U in the prior art includes a base plate. A drive shaft and a motor are arranged sequentially from left to right on the base plate. A first pulley is fixedly sleeved on the outer wall of the motor output shaft, and a second pulley is fixedly sleeved on the outer wall of the drive shaft. A belt is used to drive the first pulley and the second pulley. A support plate is fixedly connected to the top of both the motor output shaft and the drive shaft. A rectangular support column is fixedly connected to the center of the top of the support plate. A bearing seat is provided at the end of the drive shaft away from the second pulley, and the bearing seat is fixedly connected to the base plate. With the cooperation of the motor, first pulley, second pulley, belt, support plate, rectangular support column, and bearing seat, the output shaft of the motor drives the support plate fixedly connected to its top to rotate clockwise. The support plate on its left side rotates clockwise under the drive of the belt, realizing the movement of the light guide film between the two rolls. With the detection light installed on the L-shaped plate, it is convenient for the staff to inspect the light guide film. However, in actual use, there are still the following shortcomings: From a practical point of view, when inspecting the light guide film, this patent cannot adjust the detection range of the light guide film according to the detection requirements, thus making it impossible to achieve accurate detection of the light guide film. Furthermore, it is not convenient to install and disassemble the roll of light guide film, reducing the practicality of the device.
[0004] Therefore, a light guide film inspection device is needed to solve the problems in the existing technology, such as the inability to adjust the inspection range of the light guide film according to the inspection requirements and the inconvenience of convenient installation and disassembly of the roll of light guide film. Utility Model Content
[0005] The purpose of this invention is to provide a light guide film detection device to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a light guide film detection device, comprising a positioning plate, a light blocking plate, and a mounting frame. The light blocking plate is located at the rear of the positioning plate, and the mounting frame is fixedly installed on the top front side of the light blocking plate for mounting a detection lamp. An adjustment mechanism is provided on the left side of the positioning plate, and a connecting mechanism is provided on the right side of the positioning plate. A first roller frame is provided at the top of the positioning plate between the adjustment mechanism and the connecting mechanism. A bearing seat is rotatably installed at the bottom end of the first roller frame, and the bearing seat is fixedly connected to the top of the positioning plate. A rotating groove is provided on the upper surface of the first roller frame, and a light guide film is rotatably mounted on the first roller frame through the connecting mechanism and the adjustment mechanism.
[0007] It should be noted that the adjustment mechanism includes a mounting frame, which is fixedly connected to the top of the positioning plate. A limiting groove is formed at the bottom of the mounting frame above the positioning plate. A sliding groove is formed at the top of the mounting frame, and a mounting seat is slidably installed within the limiting groove. A slider is fixedly connected to the top of the mounting seat and slides within the sliding groove. A motor is fixedly connected to the bottom of the slider and the top of the mounting seat. A second roller frame is fixedly connected to the upper end of the motor. The second roller frame is rotatably mounted on the upper part of the slider via a bearing. A threaded groove is formed on the upper part of the second roller frame, and a threaded sleeve is threadedly connected to the threaded groove. A first baffle is fixedly connected to the outside of the threaded sleeve. An electric telescopic rod is fixedly connected to the left side surface of the mounting seat and is fixedly installed on the left side of the mounting frame.
[0008] It is worth noting that the mounting base and the slider are connected in a C-shape.
[0009] It should be further noted that the second idler frame is positioned on the upper part of the mounting frame relative to the first idler frame.
[0010] In a preferred embodiment, the connecting mechanism includes a fixed frame, which is fixedly connected to the right side of the positioning plate. A through groove is provided on the fixed frame, and a push block is slidably arranged in the through groove. An L-shaped plate is fixedly connected to the left side of the push block. A limiting roller is rotatably installed on the upper part of the L-shaped plate. A fixed plate is fixedly connected to the top of the limiting roller. A spring is sleeved on the outside of the limiting roller, and a second baffle is fixedly connected to the bottom end of the spring. The second baffle is slidably arranged outside the limiting roller.
[0011] In a preferred embodiment, the push block has a T-shaped cross-section and is locked and limited within the through groove by an L-shaped plate.
[0012] In a preferred embodiment, the L-shaped plate is wider than the through slot.
[0013] In a preferred embodiment, the upper end of the spring is connected to the fixed plate.
[0014] Compared with the prior art, the light guide film detection device provided by this utility model has at least the following beneficial effects:
[0015] (1) The adjustment mechanism facilitates the adjustment of the detection length of the light guide film according to the detection requirements, thereby enabling precise detection operations and improving the ease of use of the device.
[0016] (2) By using the connection mechanism and adjustment mechanism, the device can not only be adjusted and installed according to the size of the light guide film roll, but also be easily disassembled and installed, thereby improving the practicality of the device. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the connection mechanism of this utility model.
[0020] In the diagram: 1. Positioning plate; 2. Light blocking plate; 3. Mounting frame; 4. Adjustment mechanism; 401. Mounting frame; 402. Limiting groove; 403. Sliding groove; 404. Mounting base; 405. Sliding block; 406. Motor; 407. Second roller frame; 408. Threaded groove; 409. First baffle; 4010. Threaded sleeve; 4011. Electric telescopic rod; 5. Connecting mechanism; 501. Fixing frame; 502. Push block; 503. L-shaped plate; 504. Second baffle; 505. Limiting roller; 506. Fixing plate; 507. Spring; 508. Through groove; 6. First roller frame; 601. Bearing seat; 602. Rotating groove; 7. Light guide film. Detailed Implementation
[0021] The present invention will be further described below with reference to the embodiments.
[0022] Please see Figure 1-3 This utility model provides a light guide film detection device, including a positioning plate 1, a light blocking plate 2, and a mounting frame 3. The light blocking plate 2 is located at the rear of the positioning plate 1, and the mounting frame 3 is fixedly installed on the top front side of the light blocking plate 2 for installing a detection lamp. An adjustment mechanism 4 is provided on the upper left side of the positioning plate 1, and a connecting mechanism 5 is provided on the right side of the positioning plate 1. A first roller frame 6 is provided between the adjustment mechanism 4 and the connecting mechanism 5 at the top of the positioning plate 1. A bearing seat 601 is rotatably installed at the bottom end of the first roller frame 6, and the bearing seat 601 is fixedly connected to the top of the positioning plate 1. A rotating groove 602 is opened on the upper surface of the first roller frame 6, and a light guide film 7 is rotatably arranged on the first roller frame 6 through the connecting mechanism 5 and the adjustment mechanism 4.
[0023] Further as Figure 1 and Figure 2 As shown, it is worth noting that the adjustment mechanism 4 includes a mounting frame 401, which is fixedly connected to the top of the positioning plate 1. A limiting groove 402 is formed at the bottom of the mounting frame 401 above the positioning plate 1. A sliding groove 403 is formed at the top of the mounting frame 401. A mounting seat 404 is slidably mounted in the limiting groove 402. The mounting seat 404 and the slider 405 are connected in a C-shape. The slider 405 is fixedly connected to the top of the mounting seat 404 and slides within the sliding groove 403. A motor is fixedly connected to the bottom of the slider 405 and the top of the mounting seat 404. 406. A second roller frame 407 is fixedly connected to the upper end of the motor 406. The second roller frame 407 is set on the upper part of the mounting frame 401 relative to the first roller frame 6. The second roller frame 407 is rotatably set on the upper part of the slider 405 through a bearing. A threaded groove 408 is provided on the upper part of the second roller frame 407. A threaded sleeve 4010 is threadedly connected to the threaded groove 408. A first baffle 409 is fixedly connected to the outside of the threaded sleeve 4010. An electric telescopic rod 4011 is fixedly connected to the left side surface of the mounting base 404. The electric telescopic rod 4011 is fixedly installed on the left side of the mounting frame 401.
[0024] In use, the threaded sleeve 4010 rotates outside the threaded groove 408, causing the first baffle 409 to be disassembled from the upper part of the second idler frame 407. The drum is then installed on the second idler frame 407, and the threaded sleeve 4010 is rotated to limit the installation of the first baffle 409 on the upper part of the drum. At this time, the operation of the motor 406 facilitates the rotation of the second idler frame 407, which drives the drum installed at its upper limit to rotate. This allows the light guide film 7 to be conveyed and inspected through rotation. The inspection device installed on the mounting frame 3... The light guide film 7 is illuminated by the lamp and diffused by the light-blocking plate 2, enabling the detection of the light guide film 7. During the detection process, the electric telescopic rod 4011 is operated, causing the mounting base 404 to slide within the mounting frame 401, thereby driving the slider 405 and the second idler frame 407 to slide on the mounting frame 401. This allows the detection distance between the second idler frame 407 and the first idler frame 6 to be adjusted, so as to adjust the detection range according to the detection requirements, thereby improving the practicality of the device.
[0025] As can be seen from the above working process, the adjustment mechanism 4 allows for the adjustment of the detection length of the light guide film 7 according to the detection requirements, thereby enabling precise detection operations and improving the ease of use of the device.
[0026] Further as Figure 2 and Figure 3As shown, it is worth noting that the connecting mechanism 5 includes a fixed frame 501, which is fixedly connected to the right side of the positioning plate 1. A through groove 508 is provided on the fixed frame 501. A push block 502 is slidably arranged in the through groove 508. The push block 502 has a T-shaped cross section and is locked and limited in the through groove 508 by an L-shaped plate 503. An L-shaped plate 503 is fixedly connected to the left side of the push block 502. The L-shaped plate 503 is wider than the through groove 508. A limiting roller 505 is rotatably installed on the upper part of the L-shaped plate 503. A fixed plate 506 is fixedly connected to the top of the limiting roller 505. A spring 507 is sleeved on the outside of the limiting roller 505. The upper end of the spring 507 is connected to the fixed plate 506. A second baffle 504 is fixedly connected to the bottom end of the spring 507. The second baffle 504 is slidably arranged outside the limiting roller 505.
[0027] In use, by pushing the pusher block 502, it causes the L-shaped plate 503 to slide upward, thereby causing the L-shaped plate 503 to drive the second baffle 504 and the limiting roller 505 to slide. By disengaging the limiting roller 505 from the upper part of the rotating groove 602, it is convenient to install the roll of the light guide film 7 outside the limiting roller 505. Under the elastic force of the spring 507, the second baffle 504 limits the roll of the light guide film 7 located on the upper part of the first roller frame 6, thereby improving its stability during rotation.
[0028] This solution has the following working process: When this device is used, firstly, by pushing the push block 502, it causes the L-shaped plate 503 to slide upward, thereby causing the L-shaped plate 503 to drive the second baffle 504 and the limiting roller 505 to slide. By disengaging the limiting roller 505 from the upper part of the rotating groove 602, it is convenient to install the roll of the light guide film 7 outside the limiting roller 505. Under the elastic force of the spring 507, the second baffle 504 limits the roll of the light guide film 7 located on the upper part of the first roller frame 6, thereby improving its stability during rotation. On the other side, the roll rotates outside the threaded groove 408 through the threaded sleeve 4010, causing the first baffle 409 to be disassembled from the upper part of the second roller frame 407. The roll is then installed on the second roller frame 407, and the threaded sleeve 4010 is rotated to move the first baffle 504. A baffle 409 is installed at the upper part of the drum to limit the movement. At this time, the operation of the motor 406 facilitates the rotation of the second idler frame 407, which drives the drum installed at its upper limit to rotate. This allows the light guide film 7 to be conveyed and inspected through rotation. The light guide film 7 is inspected by the light transmitted through the light lamp installed on the mounting frame 3 and the diffuse reflection through the light blocking plate 2. At the same time, during the inspection process, the electric telescopic rod 4011 is operated, which causes the mounting base 404 to slide within the mounting frame 401, thereby driving the slider 405 and the second idler frame 407 to slide on the mounting frame 401. This allows the inspection distance between the second idler frame 407 and the first idler frame 6 to be adjusted, so as to adjust the inspection range according to the inspection requirements, thereby improving the practicality of the device.
[0029] In summary: The adjustment mechanism 4 facilitates the adjustment of the detection length of the light guide film 7 according to the detection requirements, thereby enabling precise detection operations and improving the ease of use of the device; the connection mechanism 5, in conjunction with the adjustment mechanism 4, not only allows for matching and adjustment of the light guide film 7 roll according to its size, but also facilitates its disassembly and installation, thus improving the practicality of the device.
Claims
1. A light guide film detection device, comprising a positioning plate (1), a light blocking plate (2), and a mounting bracket (3), wherein the light blocking plate (2) is disposed at the rear of the positioning plate (1), and the mounting bracket (3) is fixedly installed on the top front side of the light blocking plate (2) for mounting a detection lamp, characterized in that: An adjustment mechanism (4) is provided on the upper left side of the positioning plate (1), and a connecting mechanism (5) is provided on the right side of the positioning plate (1). A first roller frame (6) is provided between the adjustment mechanism (4) and the connecting mechanism (5) at the top of the positioning plate (1). A bearing seat (601) is rotatably installed at the bottom end of the first roller frame (6). The bearing seat (601) is fixedly connected to the top of the positioning plate (1). A rotating groove (602) is opened on the upper surface of the first roller frame (6). A light guide film (7) is rotatably provided on the first roller frame (6) through the connecting mechanism (5) and the adjustment mechanism (4).
2. The light guide film detection device according to claim 1, characterized in that: The adjusting mechanism (4) includes a mounting frame (401), which is fixedly connected to the top of the positioning plate (1). A limiting groove (402) is formed at the bottom of the mounting frame (401) above the positioning plate (1). A sliding groove (403) is formed at the top of the mounting frame (401). A mounting seat (404) is slidably installed in the limiting groove (402). A slider (405) is fixedly connected to the top of the mounting seat (404). The slider (405) is slidably disposed in the sliding groove (403). A motor is fixedly connected to the bottom of the slider (405) at the top of the mounting seat (404). (406) The upper end of the motor (406) is fixedly connected to a second roller frame (407). The second roller frame (407) is rotatably mounted on the upper part of the slider (405) via a bearing. The upper part of the second roller frame (407) is provided with a threaded groove (408). A threaded sleeve (4010) is threadedly connected to the threaded groove (408). A first baffle (409) is fixedly connected to the outside of the threaded sleeve (4010). An electric telescopic rod (4011) is fixedly connected to the left side surface of the mounting base (404). The electric telescopic rod (4011) is fixedly mounted on the left side of the mounting frame (401).
3. The light guide film detection device according to claim 2, characterized in that: The mounting base (404) and the slider (405) are connected in a C-shape.
4. The light guide film detection device according to claim 3, characterized in that: The second idler frame (407) is positioned on the upper part of the mounting frame (401) relative to the first idler frame (6).
5. The light guide film detection device according to claim 4, characterized in that: The connecting mechanism (5) includes a fixing frame (501), which is fixedly connected to the right side of the positioning plate (1). A through groove (508) is provided on the fixing frame (501). A push block (502) is slidably arranged in the through groove (508). An L-shaped plate (503) is fixedly connected to the left side of the push block (502). A limiting roller (505) is rotatably installed on the upper part of the L-shaped plate (503). A fixing plate (506) is fixedly connected to the top of the limiting roller (505). A spring (507) is sleeved on the outside of the limiting roller (505). A second baffle (504) is fixedly connected to the bottom end of the spring (507). The second baffle (504) is slidably arranged outside the limiting roller (505).
6. The light guide film detection device according to claim 5, characterized in that: The push block (502) has a T-shaped cross section and is locked and limited in the through groove (508) by an L-shaped plate (503).
7. The light guide film detection device according to claim 6, characterized in that: The L-shaped plate (503) is wider than the through groove (508).
8. The light guide film detection device according to claim 7, characterized in that: The upper end of the spring (507) is connected to the fixed plate (506).