Feeding device of liquid crystal display screen film sticking machine

By using a servo motor-driven rotating rod and a bidirectional threaded rod mechanism to adjust the position and spacing of the suction cups, the problem that existing LCD screen laminating machines can only handle single-size displays is solved, enabling stable loading of multiple-size displays and flexible adaptation of the production line.

CN224147262UActive Publication Date: 2026-04-21JIANGSU JINXINHUAI ELECTRONIC TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU JINXINHUAI ELECTRONIC TECHNOLOGY CO LTD
Filing Date
2025-06-09
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing LCD screen film application machine's feeding device can only feed a single size of screen, which cannot adapt to the needs of different sizes, resulting in the inability to meet the needs of inter-production line exchange operations.

Method used

A feeding device for an LCD screen film applicator was designed. It adopts a servo motor-driven rotating rod and a bidirectional threaded rod mechanism. By adjusting the position and spacing of the suction cups, it can adapt to the feeding of screens of different sizes. The device includes a first adjustment mechanism to adjust the spacing between the left and right suction cups and a second adjustment mechanism to adjust the spacing between the front and rear suction cups.

Benefits of technology

It enables stable feeding of LCD screens of different sizes, improves the flexibility and adaptability of the production line, and meets the needs of changing multiple sizes of LCD screens.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of film sticking machines, and discloses a feeding device of a liquid crystal display screen film sticking machine, which comprises an operation table, supporting legs are fixedly mounted at the bottom of the operation table, a supporting plate is fixedly mounted on the right side of the operation table, and supporting plates are fixedly mounted on the front side and the rear side of the operation table. A top plate is fixedly installed between the supporting plates on the front side and the rear side, a moving assembly is arranged at the bottom of the top plate, a first adjusting mechanism is arranged at the bottom of the moving assembly, a second adjusting mechanism is arranged at the bottom of the first adjusting mechanism, the moving assembly comprises an electric sliding rail, and the electric sliding rail is fixedly installed at the bottom of the top plate. According to the feeding device of the liquid crystal display screen film sticking machine, by arranging the first adjusting mechanism and the second adjusting mechanism, the purpose that the feeding device is convenient to adjust and suitable for display screens of different sizes is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of film application machine technology, specifically to a feeding device for an LCD screen film application machine. Background Technology

[0002] When the film applicator is in operation, the LCD screen needs to be transported to the work area by the feeding device for film application. After searching, the existing technical solutions have the following defects: they can only feed the screen of a single size in a fixed manner, which is not convenient to adjust according to needs and cannot meet the needs of the exchange between production lines. Therefore, a feeding device for the LCD screen film applicator is proposed to solve the above-mentioned problems. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a feeding device for a liquid crystal display screen film applicator, which has the advantage of being easy to adjust and suitable for display screens of different sizes, thus solving the problems mentioned in the background art.

[0005] (II) Technical Solution

[0006] To achieve the above-mentioned purpose of easy adjustment for display screens of different sizes, this utility model provides the following technical solution: a feeding device for a liquid crystal display screen film applicator, including an operating table, a support leg fixedly installed at the bottom of the operating table, a tray fixedly installed on the right side of the operating table, support plates fixedly installed on both the front and rear sides of the operating table, a top plate fixedly installed between the front and rear support plates, a moving component provided at the bottom of the top plate, a first adjustment mechanism provided at the bottom of the moving component, and a second adjustment mechanism provided at the bottom of the first adjustment mechanism;

[0007] The moving component includes an electric slide rail, an electric slide rail fixedly installed at the bottom of the top plate, an electric slider slidably installed at the bottom of the electric slide rail, an electric push rod fixedly installed at the bottom of the electric slider, an installation plate fixedly installed at the output end of the electric push rod, a support column fixedly installed at the bottom of the electric slider, and a support cylinder slidably installed on the outside of the support column and fixedly connected to the installation plate.

[0008] Preferably, the first adjustment mechanism includes a mounting frame. Two mounting frames are fixedly mounted on the bottom of the mounting plate. Two movable cylinders extending to the outside of the mounting frame are slidably mounted on the inner side of the mounting frame. A support crossbar extending to the inner side of the right movable cylinder is slidably mounted on the inner side of the left movable cylinder. A connecting plate is fixedly mounted between the front and rear movable cylinders. Movable frames are fixedly mounted on opposite sides of the two connecting plates. A servo motor is fixedly mounted on the bottom of the mounting plate. A rotating rod is fixedly mounted on the output shaft of the servo motor. A swing plate extending to the top of the two movable frames is fixedly mounted on the bottom of the swing plate. A round rod extending to the inner side of the movable frame is fixedly mounted on the bottom of the swing plate.

[0009] Preferably, the second adjustment mechanism includes a box body, with the box body fixedly installed between the bottoms of the front and rear movable cylinders. A bidirectional threaded rod is rotatably connected between the front and rear sides of the inner wall of the box body. A servo motor is fixedly installed on the top of the box body. A transmission wheel is fixedly installed at the output shaft of the servo motor and on the outer side of the bidirectional threaded rod. A belt passing through the box body is connected between the two transmission wheels. Two threaded blocks are threadedly connected to the outer side of the bidirectional threaded rod and are slidably connected to the top wall of the box body. A connecting block extending to the bottom of the box body is fixedly installed at the bottom of the threaded block. A horizontal plate is fixedly installed at the bottom of the connecting block. A suction cup is fixedly installed at the bottom of the horizontal plate.

[0010] Preferably, the inner top wall of the box body has a through hole adapted to the belt, the inner bottom wall of the box body has an open design, and the outer side of the bidirectional threaded rod is provided with two threads of equal length and opposite direction.

[0011] Preferably, the movable frame has a slot inside, the size of which is adapted to the moving trajectory of the round rod, the two movable frames are symmetrically distributed from left to right, the mounting bracket has a U-shaped design, and a groove adapted to the supporting crossbar is provided on one side of the movable cylinder.

[0012] Preferably, the number of support legs is six and the support legs on the front and rear sides are symmetrically distributed, and the number of support plates on each side is two.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, the present invention provides a feeding device for a liquid crystal display screen film applicator, which has the following advantages:

[0015] The feeding device of this LCD screen laminating machine, through the setting of a first adjustment mechanism and a second adjustment mechanism, uses a servo motor to drive a rotating rod to rotate, and the swing plate at the bottom of the rotating rod rotates accordingly. The round rod at the bottom of the swing plate moves within the slot of the moving frame. Since the moving frame is fixedly connected to the connecting plate, and the connecting plate is fixedly connected to the moving cylinder, the moving cylinder is driven to move left and right within the mounting frame. The support crossbar slides within the moving cylinder, playing a role in auxiliary support and guidance, making the movement of the moving cylinder more stable. By rotating the servo motor forward and reverse, the moving cylinder can be reciprocated left and right, thereby adjusting the distance between the suction cups on the left and right sides. The second adjustment mechanism is used to adjust the distance between the suction cups on the front and rear sides to adapt to LCD screens of different sizes. The servo motor drives a bidirectional threaded rod to rotate through a belt and a transmission wheel. When the bidirectional threaded rod rotates, the two threaded blocks will move closer or further apart. The threaded blocks drive the horizontal plate to move through the connecting block, and the suction cups at the bottom of the horizontal plate also move accordingly, thereby realizing the adjustment of the distance between the front and rear suction cups, achieving the purpose of easy adjustment to suit different sizes of display screens. Attached Figure Description

[0016] Figure 1 This is a three-dimensional view of the structure of this utility model;

[0017] Figure 2 This is an exploded view of the structure of this utility model from below;

[0018] Figure 3 This is a bottom-view perspective view of a partial structure of this utility model;

[0019] Figure 4 This is a partial sectional perspective view of the present invention;

[0020] Figure 5 This is a cross-sectional view and a bottom-view perspective view of a partial structure of this utility model.

[0021] In the diagram: 1. Operating platform, 2. Support leg, 3. Support plate, 4. Support plate, 5. Top plate, 6. Moving component, 61. Electric slide rail, 62. Electric slider, 63. Electric push rod, 64. Mounting plate, 65. Support column, 66. Support cylinder, 7. First adjustment mechanism, 71. Mounting frame, 72. Moving cylinder, 73. Support crossbar, 74. Connecting plate, 75. Servo motor, 76. Rotating rod, 77. Moving frame, 78. Swing plate, 79. Round rod, 8. Second adjustment mechanism, 81. Box body, 82. Bidirectional threaded rod, 83. Servo motor, 84. Transmission wheel, 85. Belt, 86. Threaded block, 87. Connecting block, 88. Cross plate, 89. Suction cup. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 This utility model provides a technical solution: a feeding device for an LCD screen film applicator, including an operating table 1, a support leg 2 fixedly installed at the bottom of the operating table 1, a tray 3 fixedly installed on the right side of the operating table 1, the tray 3 holds the LCD screen to be fed, providing a stable placement position for the screen, facilitating the feeding device to pick up and move it, support plates 4 fixedly installed on both the front and rear sides of the operating table 1, a top plate 5 fixedly installed between the front and rear support plates 4, a moving component 6 provided at the bottom of the top plate 5, a first adjustment mechanism 7 provided at the bottom of the moving component 6, and a second adjustment mechanism 8 provided at the bottom of the first adjustment mechanism 7.

[0024] There are six support legs 2, and the support legs 2 on the front and rear sides are symmetrically distributed, which enhances the stability and balance of the support. There are two support plates 4 on each side.

[0025] The moving component 6 includes an electric slide rail 61. The electric slide rail 61 is fixedly installed on the bottom of the top plate 5. An electric slider 62 is slidably installed on the bottom of the electric slide rail 61. An electric push rod 63 is fixedly installed on the bottom of the electric slider 62. The electric slide rail 61, electric slider 62 and electric push rod 63 are all electrically connected to an external power source and controlled by an external program. An installation plate 64 is fixedly installed on the output end of the electric push rod 63. A support column 65 is fixedly installed on the bottom of the electric slider 62. A support cylinder 66, which is fixedly connected to the installation plate 64, is slidably installed on the outside of the support column 65.

[0026] The electric slide rail 61 is fixed to the bottom of the top plate 5. The electric slider 62 slides on the electric slide rail 61, driving the lower component to move left and right. The electric push rod 63 is installed at the bottom of the electric slider 62, and its output end is connected to the mounting plate 64. The extension and retraction of the electric push rod 63 can drive the mounting plate 64 to move up and down. The support column 65 and the support cylinder 66 provide guidance and support for the up and down movement of the mounting plate 64, ensuring the stability of the movement process.

[0027] The first adjustment mechanism 7 includes a mounting frame 71. Two mounting frames 71 are fixedly mounted on the bottom of the mounting plate 64. Two movable cylinders 72 extending to the outside of the mounting frame 71 are slidably mounted on the inner side of the mounting frame 71. A support crossbar 73 extending to the inner side of the right movable cylinder 72 is slidably mounted on the inner side of the left movable cylinder 72. A connecting plate 74 is fixedly mounted between the front and rear movable cylinders 72. Movable frames 77 are fixedly mounted on opposite sides of the two connecting plates 74. A servo motor 75 is fixedly mounted on the bottom of the mounting plate 64. The servo motor 75 is electrically connected to an external power supply and is controlled by an external program. The output shaft of the servo motor 75 can rotate in both directions. A rotating rod 76 is fixedly mounted on the output shaft of the servo motor 75. A swing plate 78 extending to the top of the two movable frames 77 is fixedly mounted on the bottom of the swing plate 76. A round rod 79 extending to the inner side of the movable frame 77 is fixedly mounted on the bottom of the swing plate 78.

[0028] The movable frame 77 has a slot inside, the size of which is adapted to the movement trajectory of the round rod 79. The two movable frames 77 are symmetrically distributed from left to right. The mounting bracket 71 has a U-shaped design. The movable cylinder 72 has a groove on one side that is adapted to the support crossbar 73.

[0029] The second adjustment mechanism 8 includes a housing 81. The housing 81 is fixedly installed between the bottoms of the front and rear movable cylinders 72. A bidirectional threaded rod 82 is rotatably connected between the front and rear sides of the inner wall of the housing 81. A servo motor 83 is fixedly installed on the top of the housing 81. The servo motor 83 is electrically connected to an external power source and controlled by an external program. The output shaft of the servo motor 83 can rotate in both directions. A transmission wheel 84 is fixedly installed at the output shaft of the servo motor 83 and on the outer side of the bidirectional threaded rod 82. A belt 85 passing through the housing 81 is connected between the two transmission wheels 84. Two threaded blocks 86 are threadedly connected to the outer side of the bidirectional threaded rod 82 and are slidably connected to the inner top wall of the housing 81. A connecting block 87 extending to the bottom of the housing 81 is fixedly installed at the bottom of the threaded block 86. A horizontal plate 88 is fixedly installed at the bottom of the connecting block 87. A suction cup 89 is fixedly installed at the bottom of the horizontal plate 88. The suction cup 89 is fixedly installed at the bottom of the horizontal plate 88 and generates negative pressure to suck up the LCD screen, realizing the gripping and loading operation of the screen.

[0030] The inner top wall of the box 81 has a through hole that matches the belt 85, and the inner bottom wall of the box 81 has an open design. The outer side of the bidirectional threaded rod 82 has two threads of equal length and opposite direction.

[0031] During use, place the LCD screen on the tray 3 on the right side of the operating table 1, ensuring the screen is stable and preventing slippage or tipping during loading. Check the connections of all components for secureness, including the installation of the electric slide rail 61, electric slider 62, electric push rod 63, servo motor 75, and servo motor 83, ensuring they are working properly. Simultaneously check the suction cup 89 for damage or leaks. Turn on the servo motor 83, which drives the bidirectional threaded rod 82 via the belt 85 and drive wheel 84. Observe the position of the suction cup 89 according to the actual size of the LCD screen. By controlling the rotation direction and speed of the servo motor 83, move the two threaded blocks 86 closer or further apart, thus adjusting the distance between the suction cups 89 to ensure they accurately hold the screen. Extend the output end of the electric push rod 63, causing the mounting plate 64, first adjustment mechanism 7, and second adjustment mechanism 8 to move downwards until the suction cup 89 contacts the LCD screen. Activate the suction cup 89 to create negative pressure, holding the LCD screen in place. During the loading process, pay attention to the suction force of the suction cup 89 to avoid damage to the display screen due to excessive suction or drop due to insufficient suction. Activate the electric push rod 63 to retract its output end, lifting the LCD screen. Activate the electric slider 62 to slide it on the electric slide rail 61, moving the LCD screen to the designated position above the operating table 1. If necessary, activate the servo motor 75 and adjust the horizontal position of the LCD screen through the first adjustment mechanism 7 to ensure it accurately reaches the loading position. During the movement, observe the position and status of the display screen to ensure smooth movement. Activate the electric push rod 63 to extend its output end, placing the LCD screen on the operating table. Close the suction cup 89 to release the LCD screen. During placement, pay attention to the placement position and angle of the display screen to ensure accurate alignment with the positioning device on the operating table. Repeat the above steps to load all LCD screens. During repeated operations, pay attention to the operating status of the equipment and the loading quality of the display screens, and promptly address any problems that arise.

[0032] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0033] In summary, the feeding device of this LCD screen laminating machine, through the setting of a first adjusting mechanism 7 and a second adjusting mechanism 8, enables the servo motor 75 to drive the rotating rod 76 to rotate, and the swing plate 78 at the bottom of the rotating rod 76 to rotate accordingly. The round rod 79 at the bottom of the swing plate 78 moves within the slot of the moving frame 77. Since the moving frame 77 is fixedly connected to the connecting plate 74, and the connecting plate 74 is fixedly connected to the moving cylinder 72, the moving cylinder 72 is driven to move left and right within the mounting frame 71. The supporting crossbar 73 slides within the moving cylinder 72, playing a role in auxiliary support and guidance, making the movement of the moving cylinder 72 more stable. By rotating the servo motor 75 in both directions, the left and right reciprocating motion of the moving cylinder 72 can be realized, thereby adjusting the position of the moving cylinder 72. The distance between the left and right suction cups 89 is adjusted by the second adjustment mechanism 8 to accommodate different sizes of LCD screens. The servo motor 83 drives the bidirectional threaded rod 82 to rotate via the belt 85 and the transmission wheel 84. When the bidirectional threaded rod 82 rotates, the two threaded blocks 86 move closer or further apart. The threaded blocks 86 drive the horizontal plate 88 to move via the connecting block 87. The suction cups 89 at the bottom of the horizontal plate 88 also move accordingly, thereby adjusting the distance between the front and rear suction cups. This achieves the goal of easy adjustment to accommodate different sizes of screens and solves the problem that only a single size of screen can be fixed for feeding, making it inconvenient to adjust according to needs and unable to meet the needs of inter-production line exchange.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A feeding device for a liquid crystal display screen film applicator, comprising an operating table (1), a support leg (2) fixedly installed at the bottom of the operating table (1), a tray (3) fixedly installed on the right side of the operating table (1), support plates (4) fixedly installed on both the front and rear sides of the operating table (1), a top plate (5) fixedly installed between the support plates (4) on the front and rear sides, and a moving component (6) provided at the bottom of the top plate (5), characterized in that: The bottom of the moving component (6) is provided with a first adjustment mechanism (7), and the bottom of the first adjustment mechanism (7) is provided with a second adjustment mechanism (8). The moving component (6) includes an electric slide rail (61), the bottom of the top plate (5) is fixedly mounted with the electric slide rail (61), the bottom of the electric slide rail (61) is slidably mounted with an electric slider (62), the bottom of the electric slider (62) is fixedly mounted with an electric push rod (63), the output end of the electric push rod (63) is fixedly mounted with an mounting plate (64), the bottom of the electric slider (62) is fixedly mounted with a support column (65), and the outside of the support column (65) is slidably mounted with a support cylinder (66) fixedly connected to the mounting plate (64).

2. The feeding device of a liquid crystal display screen pasting film machine according to claim 1, characterized in that: The first adjustment mechanism (7) includes a mounting bracket (71). Two mounting brackets (71) are fixedly installed on the bottom of the mounting plate (64). Two movable cylinders (72) extending to the outside of the mounting brackets (71) are slidably installed on the inner side of the mounting brackets (71). A support crossbar (73) extending to the inner side of the right movable cylinder (72) is slidably installed on the inner side of the left movable cylinder (72). A connecting plate (74) is fixedly installed between the front and rear movable cylinders (72). Movable frames (77) are fixedly installed on the opposite sides of the two connecting plates (74). A servo motor (75) is fixedly installed on the bottom of the mounting plate (64). A rotating rod (76) is fixedly installed at the output shaft of the servo motor (75). A swing plate (78) extending to the top of the two movable frames (77) is fixedly installed at the bottom of the rotating rod (76). A round rod (79) extending to the inner side of the movable frame (77) is fixedly installed at the bottom of the swing plate (78).

3. The feeding device of a liquid crystal display screen pasting film machine according to claim 2, characterized in that: The second adjustment mechanism (8) includes a box body (81), which is fixedly installed between the bottom of the front and rear movable cylinders (72). A bidirectional threaded rod (82) is rotatably connected between the front and rear sides of the inner wall of the box body (81). A servo motor (83) is fixedly installed on the top of the box body (81). A transmission wheel (84) is fixedly installed at the output shaft of the servo motor (83) and on the outer side of the bidirectional threaded rod (82). A belt (85) that passes through the box body (81) is connected between the two transmission wheels (84). Two threaded blocks (86) are threadedly connected to the outer side of the bidirectional threaded rod (82) and are slidably connected to the inner top wall of the box body (81). A connecting block (87) extending to the bottom of the box body (81) is fixedly installed at the bottom of the threaded block (86). A horizontal plate (88) is fixedly installed at the bottom of the connecting block (87). A suction cup (89) is fixedly installed at the bottom of the horizontal plate (88).

4. The feeding device of a liquid crystal display screen pasting film machine according to claim 3, characterized in that: The inner top wall of the box (81) is provided with a through hole that is compatible with the belt (85), the inner bottom wall of the box (81) is designed to be open, and the outer side of the bidirectional threaded rod (82) is provided with two threads of equal length and opposite direction.

5. The feeding device of the liquid crystal display screen pasting film machine according to claim 2, characterized in that: The movable frame (77) has a slotted hole inside, the size of which is adapted to the moving trajectory of the round rod (79). The two movable frames (77) are symmetrically distributed from left to right. The mounting bracket (71) has a U-shaped design. The movable cylinder (72) has a groove on one side that is adapted to the supporting crossbar (73).

6. The feeding device of a liquid crystal display screen pasting film machine according to claim 1, characterized in that: The number of the support legs (2) is six and the support legs (2) on the front and rear sides are symmetrically distributed. The number of the support plates (4) on each side is two.