Space-avoiding type ejection device for attaching backlight source support
Through the cooperation of the air-avoiding ejection device and the robotic arm, the backlight gap and foreign body penetration caused by ejection of the ejection of the ejection are solved, and damage-free ejection and efficient automatic film are achieved, which improves production efficiency.
Patent Information
- Application Number
- CN202422340325.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-25
AI Technical Summary
In the prior art, the thimble ejection design easily leads to the backlight gap formed when the backlight support is reflected and fitted, causing foreign matter and water vapor to penetrate, and the robot cannot efficiently remove the narrow frame or frameless bracket, affecting production efficiency.
The air-avoiding ejection device is adopted, and the two-way screw is driven by a servo motor to push the push plate, eject the backlight support, and remove it from the air-avoiding slot through the robotic arm to avoid damage to the support. At the same time, the cylinder and electric slide rails are used to drive the press roller film and pressing components to achieve tight stickiness.
The damage-free ejection backlight support is achieved, avoiding backlight gaps and foreign matter seeping, improving production efficiency and automated removal capabilities.
Smart Images
Figure CN223065616U_ABST
Abstract
Description
Technical Field
[0001] The utility model provides an avoidance type ejecting device for backlight bracket fitting, which relates to the technical field of backlight fitting. Background Technique
[0002] A backlight is a kind of light source located behind a liquid crystal display, and its light-emitting effect will directly affect the visual effect of the liquid crystal display module. The liquid crystal display itself does not emit light, and it shows graphics or the result of its modulation of light.
[0003] In the early backlight bracket components, the design adopted was ejecting by ejector pins. With the continuous upgrading and innovation of products, narrow borders and borderless (≤1.0 mm) are increasingly required. The early ejector pin ejecting design can no longer be well utilized due to the diameter size factor. Even if the ejector pin size is reduced and the quantity is decreased, it will still bring concave and convex marks on the product retaining wall, which are difficult to eliminate. When it is in contact with the reflection, it will form a backlight gap to a certain extent, resulting in the infiltration of foreign matters and water vapor. In addition, due to the extremely narrow rib positions of the retaining wall, the manipulator cannot be effectively used in combination with automation to take out, resulting in a decrease in production efficiency.
[0004] Therefore, it is necessary to provide an avoidance type ejecting device for backlight bracket fitting that will not damage the bracket. Content of the Utility Model
[0005] In order to overcome the defect that the existing ejector pin ejecting design is prone to cause concave and convex marks on the product retaining wall, resulting in the formation of a backlight gap when it is in contact with the reflection, leading to the infiltration of foreign matters and water vapor, the utility model provides an avoidance type ejecting device for backlight bracket fitting that will not damage the bracket.
[0006] In order to achieve the above purpose, the embodiment of the utility model provides the following technical solution: an avoidance type ejecting device for backlight bracket fitting, which includes an operating table, a placing frame, positioning pins and a push plate. A placing frame is installed on the operating table, two positioning pins are fixedly connected inside the operating table, and a push plate is slidably arranged on the two positioning pins in common. It also includes support blocks, a bidirectional screw rod, a servo motor, a first connecting block, a connecting rod and a second connecting block. Two support blocks are installed inside the operating table, a bidirectional screw rod is rotatably arranged on the two support blocks in common, a servo motor is installed inside the operating table, the output shaft of the servo motor is fixedly connected with the bidirectional screw rod through a coupling, two first connecting blocks are threadedly connected to the bidirectional screw rod, two second connecting blocks are installed at the bottom of the push plate, and a connecting rod is rotatably connected between the two first connecting blocks and the two second connecting blocks respectively. An avoidance groove is formed on the operating table and the push plate in common.
[0007] In a preferred embodiment of the present utility model, it further includes a support frame installed on the operating table. A cylinder is installed on the support frame, and an installation plate is installed on the push rod of the cylinder. Two electric slide rails are installed at the bottom of the installation plate. A connecting frame is slidably arranged on the two electric slide rails in common. A pressing roller is rotatably arranged on the connecting frame. Third connecting blocks are installed on both sides of the connecting frame, and a winding rod is rotatably arranged on the two third connecting blocks in common.
[0008] In a preferred embodiment of the present utility model, it further includes mounting blocks installed on both sides of the upper part of the operating table. A first guide rail is installed on the mounting block. A second guide rail is slidably arranged on the first guide rail. A slider is slidably arranged on the second guide rail. A pressing rod is slidably arranged on the slider. An adjusting screw rod is rotatably arranged on the slider, and the adjusting screw rod is threadedly connected with the pressing rod.
[0009] In a preferred embodiment of the present utility model, a plurality of heat dissipation holes are opened on both sides of the operating table.
[0010] In a preferred embodiment of the present utility model, a rubber pad is fixedly connected to the bottom of the pressing rod.
[0011] In a preferred embodiment of the present utility model, a buffer pad is embedded in the first guide rail.
[0012] Compared with the prior art, the clearance type ejection device provided by the embodiment of the present utility model has the following advantages: 1. The servo motor drives the bidirectional screw rod to rotate, so that the two first connecting blocks approach each other. Then, the second connecting block is pushed upward through the connecting rod, and the push plate slides upward to eject the backlight support stuck in the placement frame. Cooperating with the robotic arm to extend into the clearance groove to take out the backlight support, the effect of ejecting the support in clearance without damaging the support is achieved.
[0013] 2. The cylinder pushes the installation plate downward, and then the electric slide rail is started to drive the connecting frame to slide, so that the pressing roller rotates on the connecting frame, and at the same time, the film tape is pulled out, so that the film tape is attached to and pressed on the entire backlight, achieving the effect of pasting the film on the backlight.
[0014] 3. By sliding the second guide rails on both sides along the first guide rail towards the side where they approach each other, moving the slider along the second guide rail to an appropriate position, and rotating the adjusting screw rod, the pressing rod slides downward along the slider and presses on the backlight module, so that each component is tightly adhered and fitted, achieving the effect of compacting and adhering the backlight module. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional structure schematic diagram of the present utility model.
[0016] Figure 2 It is a three-dimensional sectional structure schematic diagram of the operating table, placement frame and push plate of the present utility model.
[0017] Figure 3 This is a schematic three-dimensional sectional view of the support frame, cylinder and mounting plate of the present utility model.
[0018] Figure 4 This is a schematic three-dimensional view of the operating table, mounting block and pressure rod of the present utility model.
[0019] Figure 5 This is a schematic three-dimensional sectional view of the slider, pressure rod and adjusting screw of the present utility model.
[0020] The markings of each component in the drawings are as follows: 1. Operating table, 2. Placing frame, 3. Positioning pin, 4. Pushing plate, 5. Support block, 6. Bi-directional screw, 7. Servo motor, 8. First connecting block, 9. Connecting rod, 10. Second connecting block, 11. Clearance groove, 12. Support frame, 13. Cylinder, 14. Mounting plate, 15. Electric slide rail, 16. Connecting frame, 17. Pressing roller, 18. Third connecting block, 19. Winding rod, 20. Mounting block, 21. First guide rail, 22. Second guide rail, 23. Slider, 24. Pressure rod, 25. Adjusting screw, 26. Heat dissipation hole, 27. Rubber pad, 28. Buffer pad. Detailed implementation manners
[0021] First of all, it should be pointed out that in different described embodiments, the same components are provided with the same reference numerals or the same component names. Among them, the disclosed content included in the whole specification can be meaningfully applied to the same components with the same reference numerals or the same component names. The positional descriptions selected in the specification, such as up, down, lateral, etc., also refer to the directly described and shown drawings and are meaningfully applied to the new positions when the positions change.
[0022] Embodiment 1: A clearance type ejecting device for backlight bracket fitting, refer to Figure 1 and Figure 2As shown in the figure, it includes an operating table 1, a placement frame 2, positioning pins 3, and a push plate 4. The placement frame 2 for placing the backlight support is installed on the top of the operating table 1 by means of bolt connection. Two positioning pins 3 are fixedly connected to the inner bottom of the operating table 1 by welding. A push plate 4 for pushing the backlight support is slidably arranged on the two positioning pins 3. The push plate 4 slides up and down along the positioning pins 3. It also includes a support block 5, a bidirectional screw 6, a servo motor 7, a first connecting block 8, a connecting rod 9, and a second connecting block 10. Two support blocks 5 are installed on both sides of the inner bottom of the operating table 1 by means of bolt connection. A bidirectional screw 6 is rotatably arranged on the two support blocks 5. A servo motor 7 is installed on the inner bottom of the operating table 1 by means of bolt connection. The output shaft of the servo motor 7 is fixedly connected to the bidirectional screw 6 through a coupling. Two first connecting blocks 8 are threadedly connected to the bidirectional screw 6. Two second connecting blocks 10 are installed at the bottom of the push plate 4 by welding. Connecting rods 9 are rotatably connected between the two first connecting blocks 8 and the two second connecting blocks 10 respectively. Avoidance grooves 11 for passing the robotic arm are jointly opened on the operating table 1 and the push plate 4.
[0023] When attaching the backlight support, place the backlight support in the placement frame 2 and attach the backlight module to the support. When it is necessary to eject the backlight support from the placement frame 2, start the servo motor 7 to drive the bidirectional screw 6 to rotate on the support block 5, so that the two first connecting blocks 8 move towards the side close to each other. At this time, the first connecting block 8 pushes the second connecting block 10 upward through the connecting rod 9, and then the push plate 4 slides upward along the positioning pins 3. The backlight support stuck in the placement frame 2 is ejected by the push plate 4, so that the backlight support is disengaged from the clamping connection with the placement frame 2. Subsequently, the robotic arm extends into and clamps the backlight support through the avoidance groove 11, and takes away the backlight support from the placement frame 2.
[0024] Embodiment 2: On the basis of Embodiment 1, refer to Figure 3 As shown in the figure, it further includes a support frame 12 installed on the top of the operating table 1 by means of bolt connection. A cylinder 13 is installed on the support frame 12 by means of bolt connection. The push rod of the cylinder 13 faces downward. An installation plate 14 is installed at the bottom of the push rod of the cylinder 13 by means of bolt connection. Two symmetrically arranged electric slide rails 15 are installed at the bottom of the installation plate 14 by means of bolt connection. A connecting frame 16 is horizontally slidably arranged on the two electric slide rails 15. A pressing roller 17 for pressing the film tape onto the backlight is rotatably arranged at the lower part of the connecting frame 16. Third connecting blocks 18 are installed on both sides of the connecting frame 16 by welding. A winding rod 19 for winding and taking up the film tape is rotatably arranged on the two third connecting blocks 18.
[0025] When assembling the backlight, it is necessary to apply a film to the backlight module. By winding the film tape around the winding rod 19, pulling out the film tape, allowing one end of the film tape to pass under the pressure roller 17 and then adhering it to the backlight. Subsequently, by activating the cylinder 13, the mounting plate 14 is pushed downward, enabling the pressure roller 17 to press the film tape onto the backlight. Then, the electric slide rail 15 is activated, and the electric slide rail 15 drives the connecting frame 16 to slide, causing the pressure roller 17 to rotate on the connecting frame 16. At the same time, the film tape is pulled out, causing the winding rod 19 to rotate on the third connecting block 18, thereby enabling the film tape to adhere and be compacted onto the entire backlight.
[0026] Refer to Figure 4 and Figure 5 As shown, it also includes mounting blocks 20 symmetrically installed on both sides of the upper part of the operating table 1 by means of bolt connection. A first guide rail 21 is installed on the mounting block 20 by means of bolt connection. A second guide rail 22 is horizontally slidably arranged on the first guide rail 21. A slider 23 is horizontally slidably arranged on the second guide rail 22. A pressure rod 24 for pressing each component of the backlight module is longitudinally slidably arranged on the slider 23. An adjusting screw rod 25 is rotatably arranged on the slider 23, and the adjusting screw rod 25 is threadedly connected to the pressure rod 24.
[0027] When assembling the backlight, generally, adhesive is applied to bond each component of the backlight module. After applying the adhesive, by sliding the second guide rails 22 on both sides along the first guide rail 21 towards the side close to each other, and then moving the slider 23 along the second guide rail 22 to an appropriate position. Subsequently, by rotating the adjusting screw rod 25, the pressure rod 24 slides downward along the slider 23, pressing the pressure rod 24 on the backlight module, causing each component to adhere closely. After the adhesive dries, by rotating the adjusting screw rod 25 in the reverse direction, the pressure rod 24 slides upward to release the backlight. Then, slide the second guide rails 22 on both sides along the first guide rail 21 towards the side away from each other, so that the pressure rod 24 and the second guide rail 22 are separated from the area of the placement frame 2, avoiding interference when removing the backlight. Subsequently, the backlight can be removed from the placement frame 2.
[0028] Refer to Figure 2 and Figure 5 As shown, a number of heat dissipation holes 26 are provided on both sides of the operating table 1; the bottom of the pressure rod 24 is fixedly connected by means of adhesion with a rubber pad 27; a buffer pad 28 is embedded in the first guide rail 21.
[0029] When the servo motor 7 is working, heat is generated. The heat generated by the servo motor 7 is dissipated outward through the heat dissipation holes 26, enabling the air inside and outside the operating table 1 to circulate; the rubber pad 27 is used to prevent the pressure rod 24 from scratching the backlight module when pressing it, so as to avoid damaging the backlight module; the buffer pad 28 buffers the collision between the first guide rail 21 and the second guide rail 22, so as to avoid damaging the first guide rail 21 and the second guide rail 22.
[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.
Claims
1. A clearance-avoiding ejection device for attaching a backlight support bracket, comprising an operation table (1), a placement frame (2), positioning pins (3) and a push plate (4). The placement frame (2) is installed on the operation table (1). Two positioning pins (3) are fixedly connected inside the operation table (1). A push plate (4) is slidably arranged on the two positioning pins (3). It is characterized in that, It further includes a support block (5), a bidirectional screw (6), a servo motor (7), a first connecting block (8), a connecting rod (9) and a second connecting block (10). Two support blocks (5) are installed in the operating table (1). A bidirectional screw (6) is rotatably arranged on the two support blocks (5) together. A servo motor (7) is installed in the operating table (1). The output shaft of the servo motor (7) is fixedly connected to the bidirectional screw (6) through a coupling. Two first connecting blocks (8) are threadedly connected to the bidirectional screw (6). Two second connecting blocks (10) are installed at the bottom of the push plate (4). Connecting rods (9) are rotatably connected between the two first connecting blocks (8) and the two second connecting blocks (10) respectively. An avoidance groove (11) is jointly formed on the operating table (1) and the push plate (4).
2. The clearance-type ejecting device for backlight bracket fitting according to claim 1, characterized in that, It further includes a support frame (12) installed on the operating table (1). A cylinder (13) is installed on the support frame (12). A mounting plate (14) is installed on the push rod of the cylinder (13). Two electric slide rails (15) are installed at the bottom of the mounting plate (14). A connecting frame (16) is slidably arranged on the two electric slide rails (15) together. A pressure roller (17) is rotatably arranged on the connecting frame (16). Third connecting blocks (18) are installed on both sides of the connecting frame (16). A winding rod (19) is rotatably arranged on the two third connecting blocks (18) together.
3. The clearance type ejecting device for backlight bracket fitting according to claim 1, characterized in that, It further includes mounting blocks (20) installed on both sides of the upper part of the operating table (1). A first guide rail (21) is installed on the mounting block (20). A second guide rail (22) is slidably arranged on the first guide rail (21). A slider (23) is slidably arranged on the second guide rail (22). A pressure rod (24) is slidably arranged on the slider (23). An adjusting screw (25) is rotatably arranged on the slider (23). The adjusting screw (25) is threadedly connected to the pressure rod (24).
4. A clearance-avoiding ejection device for backlight bracket fitting according to claim 1, characterized in that, A number of heat dissipation holes (26) are formed on both sides of the operating table (1).
5. The clearance ejecting device for backlight bracket fitting according to claim 3, characterized in that, The bottom of the pressure rod (24) is fixedly connected with a rubber pad (27).
6. The clearance type ejecting device for backlight bracket fitting according to claim 3, characterized in that, A buffer pad (28) is embedded in the first guide rail (21).