Automatic rubberizing and edge covering equipment for liquid crystal display

Abstract

The utility model discloses automatic rubberizing and edge covering equipment for a liquid crystal display, which relates to the technical field of automatic rubberizing and edge covering equipment, and adopts the technical scheme that the automatic rubberizing and edge covering equipment comprises a base and is characterized in that a device mounting plate is fixedly arranged at the top of the base, and a stepping conveying device is arranged at the top of the base; the automatic rubberizing and edge covering equipment for the liquid crystal displays has the beneficial effects that through cooperative operation of an air cylinder push rod, a fixing frame assembly and an adhesive tape shearing unit, the liquid crystal display bodies are arranged on the top of the stepping conveying device, and the liquid crystal display bodies can be automatically rubberized; the adhesive tape head exceeding the side edge of the liquid crystal display can be accurately positioned and cut. A double-head air cylinder push rod can flexibly adjust the distance between cutters according to the size of a displayer, a bidirectional threaded rod drives the cutters to accurately move in the opposite direction, the cutting error is controlled within the extremely small range, the problem that follow-up rubberizing and edge covering are interfered by adhesive tape heads is thoroughly solved, and the operation stability of equipment is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the technical field of automatic adhesive application and edge binding equipment, specifically to an automatic adhesive application and edge binding device for liquid crystal displays. Background Technology

[0002] In the field of modern display technology, liquid crystal displays (LCDs) are widely used in various electronic devices due to their thinness, lightness, energy efficiency, and other characteristics. In the manufacturing process of LCDs, automatic adhesive application and edge-sealing equipment plays a crucial role in improving production efficiency and ensuring product quality.

[0003] In existing LCD displays, the tape ends often extend beyond the side edge after application, interfering with the application and edging of other sidewalls, causing positional misalignment, poor appearance, reduced production efficiency, and increased maintenance costs. Therefore, there is a need for an automatic tape application and edging device for LCD displays that can cut off excess tape ends after application to facilitate subsequent edging. Utility Model Content

[0004] Therefore, this utility model provides an automatic adhesive application and edge-wrapping device for LCD displays. Through a top plate, it solves the problem that after applying adhesive tape to the side of the LCD display, the tape head often extends beyond the side, interfering with the application and edge-wrapping of the remaining side walls.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic adhesive application and edge-wrapping device for liquid crystal displays, comprising a base, characterized in that: a device mounting plate is fixedly provided on the top of the base, a stepping conveyor is provided on the top of the base, a plurality of liquid crystal display bodies are provided on the top of the stepping conveyor, one of the liquid crystal display bodies has adhesive tape adhered to one side, an adhesive application device and an edge-wrapping device are inserted inside the device mounting plate, a top plate is fixedly provided on the top of the device mounting plate, a cylinder push rod is fixedly provided on the top of the top plate, a fixing frame assembly is provided at the output end of the cylinder push rod, and tape cutting units are provided on both sides of the fixing frame assembly.

[0006] Preferably, the output end of the cylinder push rod passes through the top plate and is slidably connected to the top plate.

[0007] Preferably, the fixing frame assembly includes a fixing frame, the top of which is fixedly connected to the bottom of the output end of the cylinder push rod, and a double-headed cylinder push rod is fixedly connected inside the fixing frame. The output ends of both sides of the double-headed cylinder push rod extend out of the fixing frame and are slidably connected to the side walls of the fixing frame.

[0008] Preferably, the tape cutting unit includes a mounting frame with a through groove inside. A servo motor is fixedly installed inside the mounting frame, and a bidirectional threaded rod is fixedly connected to the output end of the servo motor. Two threaded blocks are sleeved on the outside of the bidirectional threaded rod, and a cutter is fixedly installed at the bottom of each of the two threaded blocks.

[0009] Preferably, one side of the mounting bracket is fixedly connected to the output end of one side of the double-headed cylinder push rod.

[0010] Preferably, the bidirectional threaded rod passes through the through groove and is connected to the through groove via a bearing.

[0011] Preferably, the threads at both ends of the bidirectional threaded rod have opposite directions of rotation, and the bidirectional threaded rod passes through two threaded blocks and is threadedly connected to both threaded blocks.

[0012] Preferably, the threaded block is disposed inside the through groove and is slidably connected to the through groove.

[0013] The present invention has the following advantages:

[0014] 1. Through the coordinated operation of the cylinder push rod, the fixing frame assembly, and the tape cutting unit, the excess tape extending beyond the side of the LCD screen can be precisely positioned and cut. The dual-head cylinder push rod can flexibly adjust the cutting blade spacing according to the screen size, and the bidirectional threaded rod drives the cutting blade to move precisely in opposite directions, keeping the cutting error within a very small range. This completely solves the problem of tape ends interfering with subsequent adhesive application and edge wrapping, significantly improving the stability of equipment operation.

[0015] 2. By integrating a stepping conveyor, adhesive applicator, tape cutting unit, and edge-wrapping device, each component operates automatically under the coordination of the control system, achieving full automation of the LCD display process from conveying, adhesive applicator, cutting to edge wrapping. Pre-set programs control the precise connection of each workstation, reducing manual intervention and improving production efficiency compared to traditional equipment. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0018] Figure 1 The front perspective view provided for this utility model;

[0019] Figure 2 The rear-view perspective view provided for this utility model;

[0020] Figure 3 A perspective view of the connection relationship at the fixing frame assembly provided by this utility model;

[0021] Figure 4 Exploded view of the connection relationship at the fixing frame assembly provided by this utility model Figure 1 ;

[0022] Figure 5 Exploded view of the connection relationship at the fixing frame assembly provided by this utility model Figure 2 ;

[0023] Figure 6 An exploded perspective view of the connection relationship at the tape-cutting unit provided by this utility model.

[0024] In the diagram: 1. Base, 2. Mounting plate, 3. Stepping conveyor, 4. Adhesive application device, 5. Edge wrapping device, 6. Top plate, 7. Cylinder push rod, 8. Fixing frame assembly, 81. Fixing frame, 82. Double-headed cylinder push rod, 9. Tape cutting unit, 91. Mounting frame, 92. Through slot, 93. Servo motor, 94. Bidirectional threaded rod, 95. Threaded block, 96. Cutter, 10. LCD display body, 11. Adhesive tape. Detailed Implementation

[0025] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] See attached document Figure 1 -Appendix Figure 6This utility model provides an automatic adhesive application and edge-wrapping device for LCD displays, including a base 1, a device mounting plate 2 fixedly mounted on the top of the base 1, a stepping conveyor 3 mounted on the top of the base 1, a plurality of LCD display bodies 10 mounted on the top of the stepping conveyor 3, one of the LCD display bodies 10 having adhesive tape 11 glued to one side, an adhesive application device 4 and an edge-wrapping device 5 inserted inside the device mounting plate 2, a top plate 6 fixedly mounted on the top of the device mounting plate 2, a cylinder push rod 7 fixedly mounted on the top of the top plate 6, a fixing frame assembly 8 at the output end of the cylinder push rod 7, and tape cutting units 9 on both sides of the fixing frame assembly 8;

[0027] In this embodiment, to facilitate the subsequent edge wrapping of the adhesive tape 11 applied to the LCD body 10 by the edge wrapping device 5 after the adhesive is applied by the adhesive applicator 4, the stepping conveyor 3 is provided with multiple limiting grooves on its exterior. This allows the stepping conveyor 3 to intermittently convey the LCD body 10 from right to left. When the LCD body 10 is conveyed, it stops at the adhesive tape cutting unit after the adhesive is applied to the side by the adhesive applicator 4, and then the cylinder push rod 7 drives it. The moving fixing frame assembly 8 lowers the tape cutting unit 9 to the bonding position. The servo motor 93 drives the bidirectional threaded rod 94 to rotate, driving the cutters 96 on both sides to move inward synchronously, accurately cutting the tape head that exceeds the side of the LCD body 10. After the cutting is completed, the tape cutting unit 9 resets, and the stepping conveyor 3 transfers the processed LCD body 10 to the edge wrapping device 5. Through the cooperation of the robotic arm and the heating roller, the tape 11 is tightly wrapped, effectively solving the problem of tape head interfering with subsequent processes, and improving the tape wrapping accuracy and production efficiency.

[0028] To achieve the goal of controlling the longitudinal movement of the tape-cutting unit 9 so that it does not interfere with the conveyor belt 3 when conveying the LCD body 10, the device employs the following technical solution: the output end of the cylinder push rod 7 passes through the top plate 6 and is slidably connected to it; the fixing frame assembly 8 includes a fixing frame 81, the top of which is fixedly connected to the bottom of the output end of the cylinder push rod 7; a double-headed cylinder push rod 82 is fixedly connected inside the fixing frame 81, and the output ends of both sides of the double-headed cylinder push rod 82 extend out of the fixing frame 81 and are connected to it. The two side walls of 81 are slidably connected. The stepping conveyor 3 drives the attached adhesive tape 11 to move to the tape cutting unit 9 through the LCD body 10. At this time, the cylinder push rod 7 first drives the fixing frame assembly 8 to make the tape cutting unit 9 descend and cooperate with the side of the LCD body 10. The descending speed and stroke of the cylinder push rod 7 can be adjusted by the throttle valve and limit switch in the pneumatic circuit to ensure that the tape cutting unit 9 can descend smoothly and accurately to the predetermined position and maintain a suitable distance from the side of the LCD body 10 to avoid collision damage to the display.

[0029] To achieve the goal of controlling the spacing between the two tape-cutting units 9, this device employs the following technical solution: one side of the mounting frame 91 is fixedly connected to the output end of the double-headed cylinder push rod 82. During equipment operation, the mounting frame 81 serves as the core adjustment component, and the spacing between the two tape-cutting units 9 is flexibly adjusted through the double-headed cylinder push rod 82 integrated within it. Before the LCD display body 10 enters the cutting station, the equipment control system sends a command to the double-headed cylinder push rod 82 based on the pre-recorded size parameters of the LCD display body 10. The double-headed cylinder push rod 82 drives the telescopic rods on both sides to extend or retract synchronously through air pressure, thereby driving the mounting frame 91, which is fixedly connected to it, to move horizontally and adjust the spacing between the two cutters 96. After this adjustment, the two cutters 96 can accurately position the portion of the tape that extends beyond the LCD display body 10 during cutting, ensuring that the remaining portion of the cut tape closely adheres to the side contour of the LCD display body 10, avoiding problems such as incomplete coverage due to excessively short tape or wrinkles and curling edges due to excessively long tape, significantly improving the appearance quality and yield of the product.

[0030] To achieve the purpose of controlling the relative movement of the two cutters 96 to cut the adhesive tape 11 that exceeds the LCD body 10, this device adopts the following technical solution: The tape cutting unit 9 includes a mounting frame 91, with a through groove 92 inside the mounting frame 91. A servo motor 93 is fixedly installed inside the mounting frame 91, and a bidirectional threaded rod 94 is fixedly connected to the output end of the servo motor 93. Two threaded blocks 95 are sleeved on the outside of the bidirectional threaded rod 94, and cutters 96 are fixedly installed at the bottom of each of the two threaded blocks 95. The bidirectional threaded rod 94 passes through the through groove 92 and is connected to the through groove 92 through a bearing. The threaded blocks 95 are located on... Inside the through groove 92 and slidably connected to the through groove 92, after the tape cutting unit 9 descends into place, the servo motor 93 is started. The servo motor 93 drives the bidirectional threaded rod 94 to rotate. Since the threads at both ends of the bidirectional threaded rod 94 have opposite directions and are connected to the two threaded blocks 95 by threads, the two threaded blocks 95 move relative to each other in the through groove 92, thereby driving the cutter 96 at the bottom to cut the part of the adhesive tape 11 that exceeds the range of the LCD body 10. During the cutting process, the speed and rotation angle of the servo motor 93 are precisely controlled according to the actual cutting requirements to ensure that the cutter 96 can cut the tape quickly and cleanly.

[0031] The usage process of this utility model is as follows: When using this utility model, connect an external power supply and a pneumatic drive device, and control the start and stop of each electrical device through a control system. The stepping conveyor 3 has multiple limiting grooves on its exterior, enabling it to intermittently convey the LCD body 10 from right to left. During conveying, the limiting grooves ensure that the LCD body 10 does not skew or move on the stepping conveyor 3. Specifically, the stepping conveyor 3 operates with a fixed step distance and time interval through a preset program control. The distance the LCD body 10 advances each time precisely corresponds to the workstation spacing required for adhesive application and edge banding. During equipment operation... In this design, the fixed frame 81 serves as the core adjustment component. Its internally integrated double-headed cylinder push rod 82 allows for flexible adjustment of the spacing between the two tape-cutting units 9. Before the LCD display body 10 enters the cutting station, the equipment control system sends a command to the double-headed cylinder push rod 82 based on the pre-recorded size parameters of the LCD display body 10. The double-headed cylinder push rod 82, driven by air pressure, extends or retracts the telescopic rods on both sides synchronously, causing the mounting frame 91, which is fixedly connected to it, to move horizontally. This adjusts the spacing between the two cutters 96. After this adjustment, the two cutters 96 can accurately position the portion of the tape that extends beyond the LCD display body 10 during cutting, ensuring that the remaining tape after cutting closely adheres to the side contour of the LCD display body 10, preventing excessive tape overlap. This significantly improves the product's appearance quality and yield rate, avoiding issues like incomplete coverage due to short tape lengths or wrinkles and curling caused by excessively long tapes. While the stepper conveyor 3 is conveying the LCD body 10, the adhesive applicator 4 applies adhesive to the LCD body 10 and cuts it using a cutting device within the adhesive applicator 4, ensuring the adhesive tape 11 is firmly attached to the LCD body 10. The adhesive applicator 4 integrates a tape tension control system that automatically adjusts the tension based on the tape's material and thickness, ensuring the tape adheres smoothly to the side of the LCD body 10. Simultaneously, the cutting device employs a high-speed scissor structure driven by a servo motor, enabling rapid and precise cutting of the tape after application. When the stepper conveyor 3 stops conveying the LCD body 10... At this time, the stepping conveyor 3 moves the attached adhesive tape 11 to the tape cutting unit 9 via the LCD display body 10. Simultaneously, the cylinder push rod 7 first drives the fixing frame assembly 8, causing the tape cutting unit 9 to descend and engage with the side of the LCD display body 10. The descent speed and stroke of the cylinder push rod 7 can be adjusted via the throttle valve and limit switch in the pneumatic circuit to ensure that the tape cutting unit 9 descends smoothly and accurately to the predetermined position, maintaining a suitable distance from the side of the LCD display body 10 to avoid collision damage to the display. After the tape cutting unit 9 descends to its designated position, the servo motor 93 is activated, driving the bidirectional threaded rod 94 to rotate. Since the threads at both ends of the bidirectional threaded rod 94 rotate in opposite directions and are connected to two threaded blocks 95 via threads...The two threaded blocks 95 move relative to each other within the through groove 92, thereby driving the bottom cutter 96 to cut the portion of the adhesive tape 11 that extends beyond the LCD body 10. During the cutting process, the speed and rotation angle of the servo motor 93 are precisely controlled according to the actual cutting requirements to ensure that the cutter 96 can quickly and cleanly cut the tape. After cutting, the cylinder push rod 7 drives the fixing frame assembly 8 to raise and reset the tape cutting unit 9, preventing interference when the stepping conveyor 3 transports the LCD body 10. The stepping conveyor 3 then transports the LCD body 10 and the cut adhesive tape 11 again. When the conveyor 3 stops conveying the LCD display body 10, the stepping conveyor 3 moves the cut adhesive tape 11 to the edge-wrapping device 5 via the LCD display body 10. The edge-wrapping device 5 uses a robotic arm in conjunction with heated rollers to wrap the adhesive tape 11, ensuring that the tape is tightly and firmly wrapped around the side of the LCD display body 10, completing the entire adhesive application and edge-wrapping process. In addition, sensors are installed during equipment operation to monitor the operating status of each component in real time. If any abnormality occurs (such as tape breakage, component jamming, etc.), the equipment will automatically stop and issue an alarm, allowing operators to promptly troubleshoot and handle the fault.

[0032] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. An automatic adhesive application and edge-wrapping device for liquid crystal displays, comprising a base (1), characterized in that: The base (1) is fixedly provided with a device mounting plate (2) on the top. The base (1) is provided with a stepping conveyor (3) on the top. The stepping conveyor (3) is provided with multiple liquid crystal display bodies (10) on the top. One of the liquid crystal display bodies (10) is glued with adhesive tape (11) on one side. The device mounting plate (2) is inserted with an adhesive applicator (4) and an edge-wrapping device (5). The device mounting plate (2) is fixedly provided with a top plate (6) on the top. The top of the top plate (6) is fixedly provided with a cylinder push rod (7). The output end of the cylinder push rod (7) is provided with a fixing frame assembly (8). Both sides of the fixing frame assembly (8) are provided with tape-cutting units (9).

2. The automatic adhesive application and edge-wrapping equipment for liquid crystal displays according to claim 1, characterized in that: The output end of the cylinder push rod (7) passes through the top plate (6) and is slidably connected to the top plate (6).

3. The automatic adhesive application and edge-wrapping equipment for liquid crystal displays according to claim 1, characterized in that: The fixing frame assembly (8) includes a fixing frame (81), the top of the fixing frame (81) is fixedly connected to the bottom of the output end of the cylinder push rod (7), and a double-headed cylinder push rod (82) is fixedly connected inside the fixing frame (81). The output ends of the double-headed cylinder push rod (82) on both sides extend out of the fixing frame (81) and are slidably connected to the side walls of the fixing frame (81).

4. The automatic adhesive application and edge-wrapping equipment for liquid crystal displays according to claim 1, characterized in that: The tape cutting unit (9) includes a mounting frame (91), which has a through groove (92) inside. A servo motor (93) is fixedly installed inside the mounting frame (91). A bidirectional threaded rod (94) is fixedly connected to the output end of the servo motor (93). Two threaded blocks (95) are sleeved on the outside of the bidirectional threaded rod (94). A cutter (96) is fixedly installed at the bottom of each of the two threaded blocks (95).

5. The automatic adhesive application and edge-wrapping equipment for liquid crystal displays according to claim 4, characterized in that: The mounting bracket (91) is fixedly connected on one side to the output end of the double-headed cylinder push rod (82).

6. The automatic adhesive application and edge-wrapping equipment for liquid crystal displays according to claim 4, characterized in that: The bidirectional threaded rod (94) passes through the through groove (92) and is connected to the through groove (92) via a bearing.

7. The automatic adhesive application and edge-wrapping equipment for liquid crystal displays according to claim 4, characterized in that: The two-way threaded rod (94) has opposite threads at both ends, and the two-way threaded rod (94) passes through two threaded blocks (95) and is threadedly connected to both threaded blocks (95).

8. The automatic adhesive application and edge-wrapping equipment for liquid crystal displays according to claim 4, characterized in that: The threaded block (95) is located inside the through groove (92) and is slidably connected to the through groove (92).

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