A backlight module light guide plate assembly equipment

Abstract

This utility model discloses a backlight module light guide plate assembly equipment, including: a handheld component, comprising a bracket and a handle fixed to the tail end of the bracket, a fixing arm fixedly provided at the front end of the bracket, a pressure roller rotatably provided at one end of the bracket that contacts the surface of the backlight module light guide plate, and a clamping component for holding a protective film connected to one end of the bracket near the handle. This utility model uses adhesive tape on the surface of the pressure roller to adhere the protective film to the corners, using the adhesiveness of the tape to peel the protective film from the surface of the light guide plate. Then, by lifting the tightening arm in the clamping component, the tightening arm drives the waist-shaped plate to rotate synchronously. At this time, the push rod pushes the diamond-shaped plate to rotate around the second rotating axis, causing the clamping roller and the pressure roller to cooperate in clamping the corners of the protective film that are adhered. With the movement of the handle, the protective film is continuously and completely removed. Therefore, this structure is simple, easy to operate, and can improve the production efficiency of backlight module light guide plates.

Description

Technical Field

[0001] This utility model relates to the field of assembly equipment technology, and in particular to a backlight module light guide plate assembly equipment. Background Technology

[0002] The light guide plate is the core component of the backlight module. Its main function is to guide the light emitted by the light source (such as LED) uniformly to the back of the LCD panel through its internal microstructure and reflective layer, ensuring that the display screen maintains bright and uniform brightness at different angles. The light guide plate is typically made of optical-grade acrylic material, with its surface covered with precisely designed light-guiding dots. These dots, by adjusting their shape, angle, and distribution, control the scattering and total internal reflection of light, thereby achieving a highly efficient light guiding effect. In the backlight module, the light guide plate works in conjunction with optical components such as reflective sheets and diffusers to provide uniform backlight illumination for the LCD display, and is widely used in display devices such as televisions, laptops, and smartphones.

[0003] In the assembly process of the backlight module light guide plate, the removal of the protective film is an essential step. However, in the existing technology, for small light guide plates, the removal of the protective film usually relies on manual operation. This manual removal method is not only time-consuming and labor-intensive, but also requires the operator to use their fingers to hold the corners of the protective film and tear it off. This not only increases the labor intensity, but also easily leads to incomplete removal of the protective film or contamination of the light guide plate surface due to improper operation, thereby affecting production efficiency and product quality. Utility Model Content

[0004] One objective of this invention is to provide a backlight module light guide plate assembly device. This invention addresses the issue mentioned in the background that, during the assembly of the backlight module light guide plate, the removal of the protective film is an essential step. However, in existing technologies, for smaller light guide plates, the removal of the protective film typically relies on manual operation. This manual method is not only time-consuming and labor-intensive, but also requires operators to use their fingers to hold the edges of the protective film and tear it off. This increases labor intensity and is prone to incomplete removal of the protective film or contamination of the light guide plate surface due to improper operation, thus affecting production efficiency and product quality.

[0005] A backlight module light guide plate assembly device according to an embodiment of the present utility model includes: The handheld assembly includes a bracket and a handle fixed to the tail end of the bracket. A fixing arm is fixedly provided at the front end of the bracket. A pressure roller is rotatably provided at one end of the bracket that contacts the surface of the backlight module light guide plate. A clamping assembly for holding the protective film is connected to one end of the bracket near the handle. An unwinding assembly and a winding assembly for unwinding and rewinding film are respectively installed on the corresponding sides of the bracket and the fixing arm. A tensioning assembly for increasing the contact area between the film and the protective film is installed on one side of the bracket between the unwinding assembly and the pressure roller. A locking mechanism, installed at the tail end of the winding wheel in the winding assembly, is used to enable manual winding and locking.

[0006] Preferably, the clamping assembly includes a tightening arm and a waist-shaped plate. Both the tightening arm and the waist-shaped plate are rotatably connected to the bracket via a first rotating shaft. A push rod is rotatably connected above one side of the waist-shaped plate. A diamond-shaped plate is rotatably connected to one end of the push rod. The center of the diamond-shaped plate is rotatably connected to the bracket via a second rotating shaft. A clamping wheel is fixedly connected to one end of the diamond-shaped plate corresponding to the pressure roller.

[0007] Preferably, both the tightening arm and the waist-shaped plate are fixedly connected to the first rotating shaft.

[0008] Preferably, a torsion spring is fixedly provided between the rhomboid plate and the bracket.

[0009] Preferably, the unwinding assembly includes an unwinding wheel that rotates above one side of the support, and an adhesive tape is engaged on the outer side of the unwinding wheel.

[0010] Preferably, the take-up assembly includes a take-up wheel that rotates at one end of a fixed arm, and a roll for retrieving the film is engaged on the outer side of the take-up wheel.

[0011] Preferably, the tensioning assembly includes a tensioning arm that rotates on one side of the bracket, and a tensioning wheel is rotatably provided on one side of the tensioning arm. A first spring is fixedly provided between the tensioning arm and the bracket.

[0012] Preferably, the locking mechanism includes a ratchet fixed to the outer side of the take-up reel's tail end and a knob fixed to the tail end of the take-up reel. A spool-shaped locking block is engaged on the outer side of the ratchet. The spool-shaped locking block is movably disposed with the fixed arm via a guide seat. A second spring is fixedly disposed between the spool-shaped locking block and the guide seat. A lever is fixedly disposed at the tail end of the spool-shaped locking block for unlocking the lock between the spool-shaped locking block and the ratchet.

[0013] The beneficial effects of this utility model are: This invention effectively avoids the problems of traditional manual operation, such as being time-consuming and laborious, and easily leading to incomplete removal of the protective film or contamination of the light guide plate surface, by using a handheld component. In use, the operator holds the device with the handle, and the pressure roller contacts the surface of the light guide plate. The first spring in the tensioning component pushes the tensioning arm to maximize the contact area between the tape and the protective film. The tape on the surface of the pressure roller adheres to the corners of the protective film, and the adhesiveness of the tape peels the protective film off the surface of the light guide plate. Then, by lifting the tightening arm in the clamping component, the tightening arm drives the waist-shaped plate to rotate synchronously. At this time, the push rod pushes the diamond-shaped plate to rotate around the second rotating axis, which drives the clamping wheel and the pressure roller to clamp the corners of the protective film that are stuck together. With the movement of the handle, the protective film is continuously and completely removed. Therefore, this structure is simple and easy to operate, and can improve the production efficiency of backlight module light guide plates. This invention effectively avoids the problem of unstable winding by setting a locking mechanism. When the knob drives the winding wheel to rotate clockwise, the ratchet tooth groove pushes the spur-shaped locking block to compress the second spring, realizing unidirectional free rotation. When the rotation stops or is subjected to reverse force, the spur-shaped locking block is embedded into the ratchet tooth groove by the reset force of the second spring to form a mechanical lock, preventing the tape from shrinking. When it is necessary to unlock, the lever is moved to make the spur-shaped locking block disengage from the ratchet, so that the position of the tape can be freely adjusted, thereby ensuring the stability and reliability of the protective film removal process. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of one side of a backlight module light guide plate assembly equipment proposed in this utility model; Figure 2 This is a three-dimensional structural diagram of the other side of a backlight module light guide plate assembly equipment proposed in this utility model; Figure 3 This is a schematic diagram of the tensioning arm structure of a backlight module light guide plate assembly equipment proposed in this utility model; Figure 4 This is a schematic diagram of the ratchet structure of a backlight module light guide plate assembly equipment proposed in this utility model; In the diagram: 1. Handheld assembly; 101. Bracket; 102. Handle; 103. Fixing arm; 104. Pressure roller; 105. First rotating shaft; 106. Tensioning arm; 107. Waist-shaped plate; 108. Push rod; 109. Diamond-shaped plate; 110. Clamping roller; 111. Tensioning arm; 112. First spring; 113. Second rotating shaft; 114. Torsion spring; 115. Tensioning roller; 2. Unwinding assembly; 201. Unwinding roller; 202. Tape; 3. Rewinding assembly; 301. Rewinding roller; 302. Roller; 4. Locking mechanism; 401. Ratchet; 402. Guide seat; 403. Spool-shaped locking block; 404. Second spring; 405. Lever; 406. Knob. Detailed Implementation

[0015] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0016] refer to Figures 1-4 A backlight module light guide plate assembly equipment, comprising: Handheld component 1 includes a bracket 101 and a handle 102 fixed to the tail end of the bracket 101. A fixing arm 103 is fixedly provided at the front end of the bracket 101. A pressure roller 104 is rotatably provided at one end of the bracket 101 that contacts the surface of the backlight module light guide plate. A clamping component for holding a protective film is connected to one end of the bracket 101 near the handle 102. The clamping component includes a tightening arm 106 and a waist-shaped plate 107. Both the tightening arm 106 and the waist-shaped plate 107 are... A push rod 108 is rotatably mounted above one side of the waist-shaped plate 107 via the first rotating shaft 105 and the bracket 101. A diamond-shaped plate 109 is rotatably mounted at one end of the push rod 108. The center of the diamond-shaped plate 109 is rotatably mounted to the bracket 101 via the second rotating shaft 113. A clamping wheel 110 is fixedly mounted at one end of the diamond-shaped plate 109 corresponding to the pressure roller 104. The bracket 101 and the fixed arm 103 are respectively equipped with an unwinding assembly 2 and a winding assembly 2 for unwinding and rewinding film on their respective sides. The roll assembly 3, with a support 101 located between the unwind assembly 2 and the pressure roller 104, has a tensioning assembly for increasing the contact area between the film and the protective film. The tensioning assembly includes a tensioning arm 111 rotating on one side of the support 101, and tensioning rollers 115 rotatably mounted on one side of the tensioning arm 111. A first spring 112 is fixed between the tensioning arm 111 and the support 101. The operator holds the device with a handle, and the pressure roller contacts the surface of the light guide plate. The first spring in the tensioning assembly pushes the tensioning arm to maximize the contact area between the tape and the protective film. The tape on the surface of the pressure roller adheres to the corners of the protective film. The adhesiveness of the tape peels the protective film off the surface of the light guide plate. Then, by lifting the tightening arm in the clamping assembly, the tightening arm drives the waist-shaped plate to rotate synchronously. At this time, the push rod pushes the diamond-shaped plate to rotate around the second rotating axis, causing the clamping roller and the pressure roller to cooperate in clamping the corners of the protective film that are stuck together. With the movement of the handle, the protective film is continuously and completely removed. Locking mechanism 4, installed at the tail end of the take-up wheel 301 in the take-up assembly 3, is used for manual take-up and locking. Locking mechanism 4 includes a ratchet 401 fixed to the outer side of the tail end of the take-up wheel 301, and a knob 406 fixed to the tail end of the take-up wheel 301. A spool-shaped locking block 403 is engaged with the outer side of the ratchet 401. The spool-shaped locking block 403 is movably mounted to the fixed arm 103 via a guide seat 402. A second spring 404 is fixedly installed between the spool-shaped locking block 403 and the guide seat 402. A lever 405 is fixedly installed at the tail end of the spool-shaped locking block 403 to unlock the lock between the spool-shaped locking block 403 and the ratchet 401. When the knob drives the take-up wheel to rotate clockwise, the ratchet tooth groove pushes the spool-shaped locking block to compress the second spring, realizing one-way free rotation. When the rotation stops or is subjected to reverse force, the spool-shaped locking block is embedded into the ratchet tooth groove by the reset force of the second spring to form a mechanical lock, preventing the tape from shrinking. When it is necessary to unlock, the lever is moved to disengage the spool-shaped locking block from the ratchet, and the position of the tape can be freely adjusted.

[0017] Example 1: The tightening arm 106 and the waist-shaped plate 107 are both fixedly connected to the first rotating shaft 105. The tightening arm 106 and the waist-shaped plate 107 are driven to rotate around the first rotating shaft 105, so that the clamping wheel 110 of the clamping assembly moves towards the corner of the protective film and presses it. A torsion spring 114 is fixedly connected between the diamond plate 109 and the bracket 101 to play the role of resetting the diamond plate.

[0018] Example 2: The unwinding assembly 2 includes an unwinding wheel 201 that rotates above one side of the support 101. An adhesive tape 202 is engaged on the outside of the unwinding wheel 201. The winding assembly 3 includes a winding wheel 301 that rotates at one end of the fixed arm 103. A roll 302 for recycling the film is engaged on the outside of the winding wheel 301. The winding wheel is used to wind the old film, while the unwinding wheel is used to release the film. This allows for adjustment of the adhesive tape's position, ensuring that the protective film can be peeled off smoothly and completely, thus improving production efficiency and product quality.

[0019] Working principle: The operator holds the device through handle 102, causing the bracket 101 to contact the surface of the light guide plate. The pressure roller 104 presses the protective film tightly. First, the unwinding roller 201 in the unwinding assembly 2 rotates above one side of the bracket 101, releasing the tape 202. One end of the tape adheres to the edge of the protective film. Next, the first spring 112 in the tensioning assembly pushes the tensioning arm 111, causing the tensioning roller 115 to contact the tape, increasing the contact area between the tape and the protective film, ensuring that the tape adheres to the corners of the protective film. Subsequently, the operator lifts the tightening arm 106 in the clamping assembly, causing the tightening arm 106 and the waist-shaped plate 107 to rotate around the first rotating shaft 105, moving the clamping roller 110 towards the corners of the protective film. When pressed, push rod 108 pushes diamond plate 109 to rotate around second rotating shaft 113, driving clamping wheel 110 to cooperate with pressure wheel 104 to clamp the corners of the protective film that are stuck together. As the handle moves, the protective film is continuously and completely removed. Finally, the winding wheel 301 in winding assembly 3 rotates, and the used tape and protective film are slowly wound up by winding roller 302. The ratchet 401 and spur-shaped locking block 403 in locking mechanism 4 are manually wound and locked under the action of knob 406 to prevent tape from shrinking back. When it is necessary to unlock, the lever 405 is turned to make spur-shaped locking block 403 disengage from ratchet 401, so the position of tape can be freely adjusted. This achieves efficient and precise removal of protective film, improving production efficiency and product quality.

[0020] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A backlight module light guide plate assembly equipment, characterized in that, include: The handheld component (1) includes a bracket (101) and a handle (102) fixed to the tail end of the bracket (101). A fixed arm (103) is fixedly provided at the front end of the bracket (101). A pressure roller (104) is rotatably provided at one end of the bracket (101) that contacts the surface of the backlight module light guide plate. A clamping component for holding the protective film is connected to one end of the bracket (101) near the handle (102). An unwinding component (2) and a winding component (3) for winding and unwinding film are respectively installed on the corresponding sides of the bracket (101) and the fixed arm (103). A tensioning component for increasing the contact area between the film and the protective film is installed on one side of the bracket (101) between the unwinding component (2) and the pressure roller (104). The locking mechanism (4) is installed at the tail end of the winding wheel (301) in the winding assembly (3) to enable manual winding and locking.

2. The backlight module light guide plate assembly equipment according to claim 1, characterized in that, The clamping assembly includes a tightening arm (106) and a waist-shaped plate (107). Both the tightening arm (106) and the waist-shaped plate (107) are rotatably connected to the bracket (101) via a first rotating shaft (105). A push rod (108) is rotatably connected above one side of the waist-shaped plate (107). A rhombus-shaped plate (109) is rotatably connected to one end of the push rod (108). The center of the rhombus-shaped plate (109) is rotatably connected to the bracket (101) via a second rotating shaft (113). A clamping wheel (110) is fixedly connected to one end of the rhombus-shaped plate (109) corresponding to the pressure wheel (104).

3. The backlight module light guide plate assembly equipment according to claim 2, characterized in that, The tightening arm (106) and the waist plate (107) are both fixedly connected to the first rotating shaft (105).

4. The backlight module light guide plate assembly equipment according to claim 2, characterized in that, A torsion spring (114) is fixedly installed between the rhomboid plate (109) and the bracket (101).

5. The backlight module light guide plate assembly equipment according to claim 1, characterized in that, The unwinding assembly (2) includes an unwinding wheel (201) that rotates above one side of the support (101), and an adhesive tape (202) is engaged on the outside of the unwinding wheel (201).

6. The backlight module light guide plate assembly equipment according to claim 1, characterized in that, The take-up assembly (3) includes a take-up wheel (301) that rotates at one end of a fixed arm (103), and a roll (302) for retrieving film is engaged on the outside of the take-up wheel (301).

7. The backlight module light guide plate assembly equipment according to claim 1, characterized in that, The tensioning assembly includes a tensioning arm (111) that rotates on one side of the bracket (101), and a tensioning wheel (115) is rotatably provided on one side of the tensioning arm (111). A first spring (112) is fixedly provided between the tensioning arm (111) and the bracket (101).

8. The backlight module light guide plate assembly equipment according to claim 1, characterized in that, The locking mechanism (4) includes a ratchet (401) fixed to the outer side of the tail end of the winding wheel (301) and a knob (406) fixed to the tail end of the winding wheel (301). A spool-shaped locking block (403) is engaged on the outer side of the ratchet (401). The spool-shaped locking block (403) is movably disposed with the fixed arm (103) through the guide seat (402). A second spring (404) is fixedly disposed between the spool-shaped locking block (403) and the guide seat (402). A lever (405) is fixedly disposed at the tail end of the spool-shaped locking block (403) for unlocking the locking between the spool-shaped locking block (403) and the ratchet (401).

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