A display screen processing and gluing device

Abstract

The utility model is suitable for display screen processing technical field provides a kind of display screen processing gluing device, the display screen processing gluing device includes: pedestal platform, conveying component, three-dimensional movement module, glueing module, glue quantity control mechanism and visual positioning module.Pedestal platform provides support for entire device;Conveying component is installed on pedestal platform, for conveying display screen;Three-dimensional movement module is set to pedestal platform edge, its X axis, Y axis and Z axis drive mechanism can drive glueing module to move;Glueing module is installed on Z axis drive mechanism, for gluing operation;Glue quantity control mechanism is located at the bottom of glueing module, for adjusting glue output;Visual positioning module is installed on the side of glueing module, for identifying and positioning display screen, and providing movement data for three-dimensional movement module.The utility model is combined through visual positioning and three-dimensional movement module, realizes the automation and high-precision positioning of gluing process, effectively guarantees gluing quality and efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of display screen processing technology, and in particular relates to a display screen processing adhesive coating device. Background Technology

[0002] The coating technology for display screens is one of the key processes in the production of LCD screens. The main purpose of this process is to apply adhesive to specific areas, such as bezel sealant, chip encapsulation adhesive, etc., and to apply adhesive substances to the exposed electrode lines of the panel to improve the corrosion resistance of the electrodes and protect the lines from the influence of environmental moisture and dust.

[0003] As LCD technology advances towards larger areas, narrower bezels, borderless displays, and curved surfaces, the requirements for the adhesive coating process become more stringent. During display production, the uniformity and accuracy of the adhesive coating directly affect the visual effect and lifespan of the final product.

[0004] In the manufacturing process of displays, existing technologies often use manual dispensing or simple automated dispensing equipment. The degree of automation is low, and the glue path is difficult to control precisely, which affects the sealing and bonding quality. Utility Model Content

[0005] The purpose of this utility model embodiment is to provide a display screen processing adhesive coating device, which aims to solve the problems of low automation and difficulty in accurately controlling the adhesive path.

[0006] This utility model embodiment is implemented as follows: the display screen processing adhesive coating device includes: a base platform, a conveying component, a three-dimensional motion module, an adhesive coating module, an adhesive quantity control mechanism, and a visual positioning module; the base platform is used for supporting and stabilizing the entire device; the conveying component is installed on the base platform and is used to convey the display screen to be coated; the three-dimensional motion module is located at the edge of the base platform and includes an X-axis drive mechanism, a Y-axis drive mechanism, and a Z-axis drive mechanism, and is used to drive the adhesive coating module to move; the adhesive coating module is installed on the Z-axis drive mechanism of the three-dimensional motion module and is used to apply adhesive to the display screen; the adhesive quantity control mechanism is located at the bottom of the adhesive coating module and is used to adjust the amount of adhesive dispensed during the coating process; the visual positioning module is installed on the side of the adhesive coating module and is used to identify and locate the position and orientation of the display screen, providing motion data for the three-dimensional motion module.

[0007] Preferably, the conveying assembly includes a rotating shaft, a drive wheel, and a conveyor belt; the rotating shaft is rotatably installed inside the base platform, the drive wheel is fixedly installed on the rotating shaft, and the conveyor belt is sleeved on the drive wheel. The rotating shaft is driven to rotate by a motor, thereby driving the drive wheel to rotate, and in turn driving the conveyor belt to move in a cycle, so as to achieve stable conveying of the display screen to be coated.

[0008] Preferably, the three-dimensional motion module includes linear drive mechanisms for the X, Y, and Z axes; the X-axis linear drive mechanism enables the adhesive application module to move laterally, allowing the adhesive to cover different positions of the display screen laterally; the Y-axis linear drive mechanism is responsible for the vertical movement of the adhesive application module, ensuring that the adhesive can reach all areas of the display screen vertically; the Z-axis linear drive mechanism controls the vertical movement of the adhesive application module to adapt to the adhesive application requirements of displays with different thicknesses and to adjust the distance between the adhesive application head and the display screen, ensuring the uniformity and accuracy of the adhesive application.

[0009] Preferably, the glue application module includes a glue chamber, a glue pressing assembly, and a glue tube; the glue chamber is slidably mounted on the Z-axis linear drive mechanism via a connecting rod, and the glue chamber is used to store glue to provide a sufficient supply of glue for the glue application process; the glue pressing assembly is mounted above the glue chamber and applies pressure to the glue in the glue chamber to keep the glue flow rate stable; one end of the glue tube is connected to the glue chamber, and the other end is connected to the glue supply tank, and its function is to transport the glue in the glue supply tank to the glue chamber.

[0010] Preferably, the adhesive pressing assembly includes a screw, a first drive motor, and a second gear set; the screw is installed inside the adhesive cavity, and the top end of the screw is connected to the output shaft of the first drive motor through the second gear set. When the first drive motor is working, it drives the screw to rotate through the second gear set. The rotation of the screw will squeeze the adhesive in the adhesive cavity from the bottom, thereby better ensuring the stability of the adhesive flow.

[0011] Preferably, the hose has a certain degree of flexibility and corrosion resistance, which can adapt to the positional changes of the glue application module driven by the three-dimensional motion module, while ensuring that the glue will not leak during the delivery process.

[0012] Preferably, the glue dispensing control mechanism comprises an adjustment component and a control component; the adjustment component includes a glue dispensing tube, a sliding sleeve, and a knob; the glue dispensing tube is a centrally located circular tube, rotatably mounted at the bottom of the glue chamber, with an external thread in the middle of the tube matching the knob, and a notch at its bottom; the knob is mounted at the thread in the middle of the glue dispensing tube, and the sliding sleeve is slidably mounted at the bottom notch of the glue dispensing tube via a limiting block, with the top of the sliding sleeve rotatably connected to the bottom of the knob; by rotating the knob, the depth of the sliding sleeve covering the notch can be adjusted, thereby controlling the glue dispensing amount; the control component... The assembly includes a second drive motor, a transmission assembly, a missing gear, and a full gear. The second drive motor is mounted on the side of the glue cavity. A fixing block is provided between the second drive motor and the glue outlet of the glue cavity. A rotating rod is rotatably mounted on the fixing block. The missing gear is located at the bottom of the rotating rod. The output shaft of the second drive motor is connected to the rotating rod through the transmission assembly. The full gear is mounted on the glue outlet tube and is at the same horizontal position as the missing gear. The second drive motor drives the missing gear to rotate, thereby causing the full gear to rotate by a corresponding angle, which in turn causes the glue outlet tube to rotate, changing the direction of the notch.

[0013] Preferably, the visual positioning module is installed on the side of the glue cavity, which is used to identify the glue application position and size of the display screen, and to ensure that the notch of the glue tube is aligned with the glue application position during the glue application process.

[0014] The display screen processing adhesive coating device provided in this embodiment of the utility model has the following advantages compared with the prior art: 1. Through the coordinated operation of the conveying components, three-dimensional motion module, glue application module, glue quantity control mechanism, and vision positioning module, the entire glue application process for the display screen is fully automated. This reduces manual intervention and improves production efficiency.

[0015] 2. The three-dimensional motion module enables the adhesive application module to move flexibly in the horizontal, vertical, and longitudinal directions, ensuring that the adhesive covers all areas of the display screen and adapting to the adhesive application needs of displays with different thicknesses. Combined with the visual positioning module's precise identification of the display screen's position and orientation, it effectively avoids adhesive application deviation or omission, ensuring the accuracy of the adhesive application path and the uniformity of the adhesive layer.

[0016] 3. The glue quantity control mechanism adopts a linkage design of adjustment and control components. By rotating the knob, the opening of the notch of the glue tube can be finely adjusted, thereby accurately controlling the glue quantity. At the same time, the second drive motor drives the notch gear to rotate intermittently, which drives the glue tube to rotate to change the direction of the notch. This realizes the dynamic adjustment of glue quantity and glue direction, avoids glue waste or uneven glue application, and improves the glue application quality. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the conveying component of this utility model; Figure 3 This is a three-dimensional structural diagram of the three-dimensional motion module of this utility model; Figure 4 This is a partial three-dimensional structural diagram of the three-dimensional motion module of this utility model; Figure 5 This is a partial three-dimensional structural diagram of the three-dimensional motion module of this utility model; Figure 6 This is a three-dimensional structural diagram of the adhesive application module of this utility model; Figure 7 This is a cross-sectional view of the adhesive application module of this utility model; Figure 8 This is a three-dimensional structural diagram of the adhesive quantity control mechanism of this utility model; Figure 9 This is a cross-sectional view of the adhesive quantity control mechanism of this utility model; In the attached diagram: 1. Base platform; 2. Conveying assembly; 21. Rotating shaft; 22. Transmission wheel; 23. Conveyor belt; 3. Three-dimensional motion module; 311. Electromagnetic guide rail; 312. Electromagnetic slider; 321. Support plate; 322. First servo motor; 323. Bevel gear set; 324. First lead screw; 325. Guide rod; 326. Slider; 327. L-shaped plate; 328. Sleeve; 331. Mounting block; 332. Second lead screw; 333. Guide sleeve; 334. 1. First gear set; 335. Second servo motor; 4. Glue application module; 41. Guide rod; 42. Connecting rod; 43. Glue cavity; 44. Screw; 45. First drive motor; 46. Second gear set; 47. Glue tube; 5. Glue quantity control mechanism; 51. Fixing block; 52. Rotating rod; 53. Second drive motor; 54. Transmission assembly; 55. Missing gear; 56. Glue outlet tube; 57. Full gear; 58. Sliding sleeve; 59. Knob; 6. Vision positioning module. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0019] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0020] like Figure 1-9The diagram shows a structural representation of a display screen processing adhesive coating device according to an embodiment of this utility model. The device includes: a base platform 1, a conveying assembly 2, a three-dimensional motion module 3, an adhesive coating module 4, an adhesive quantity control mechanism 5, and a visual positioning module 6. The base platform 1 provides support and stability for the entire device. The conveying assembly 2 is mounted on the base platform 1 and is used to convey the display screen to be coated. The three-dimensional motion module 3 is located at the edge of the base platform 1 and includes an X-axis drive mechanism, a Y-axis drive mechanism, and a Z-axis drive mechanism. The three-dimensional motion module 3 is used to drive the adhesive coating module 4 to move. The adhesive coating module 4 is mounted on the Z-axis drive mechanism of the three-dimensional motion module 3 and is used to apply adhesive to the display screen. The adhesive quantity control mechanism 5 is located at the bottom of the adhesive coating module 4 and is used to adjust the amount of adhesive dispensed during the coating process. The visual positioning module 6 is mounted on the side of the adhesive coating module 4 and is used to identify and locate the position and orientation of the display screen, providing motion data for the three-dimensional motion module 3.

[0021] In this embodiment of the invention, the base platform 1, serving as the fundamental structure of the entire device, is typically made of a rigid metal material (such as cast iron, alloy steel, or aluminum profile). Leveling feet are installed at its bottom to ensure the stability and levelness of the entire device during operation, providing a solid foundation for high-precision adhesive application. The conveyor assembly 2 is mounted on the upper surface of the base platform 1. The conveyor assembly 2 is a belt conveyor line, consisting of a motor, a rotating shaft 21, a transmission wheel 22, and a conveyor belt 23. The conveyor assembly 2 is used to intermittently transport the display screen to be coated to the adhesive application station. The three-dimensional motion module 3 is located at the edge of the base platform 1, driving the adhesive application module 4 to move precisely in three-dimensional space. This module includes mutually orthogonally arranged X-axis, Y-axis, and Z-axis drive mechanisms. Each of these axis drive mechanisms is driven by a servo motor or stepper motor and equipped with a high-precision grating ruler or encoder for position feedback, thereby achieving precise control of the motion trajectory. The adhesive application module 4 is slidably mounted on the Z-axis drive mechanism of the three-dimensional motion module 3 via a connecting rod 42. The glue application module 4 includes a pressure tank for storing glue, a screw 44, and a glue tube 47 connected to them; its function is to apply glue to a designated area of ​​the workpiece according to a preset glue application trajectory, driven by the three-dimensional motion module 3. A glue quantity control mechanism 5 is located at the bottom of the glue application module 4, which is used to precisely adjust the glue dispensing volume and speed during the glue application process. A vision positioning module 6 is fixedly installed on the side of the glue application module 4, facing the glue application station where the workpiece is located.

[0022] like Figure 2As shown in the preferred embodiment of this utility model, the conveying assembly 2 includes a rotating shaft 21, a transmission wheel 22, and a conveyor belt 23. The rotating shaft 21 is rotatably installed inside the base platform 1, the transmission wheel 22 is fixedly installed on the rotating shaft 21, and the conveyor belt 23 is sleeved on the transmission wheel 22. The rotating shaft 21 is driven to rotate by a motor, thereby driving the transmission wheel 22 to rotate, and then driving the conveyor belt 23 to move cyclically, so as to achieve stable conveying of the display screen to be coated.

[0023] In this embodiment of the invention, the rotating shaft 21 is rotatably mounted inside the base platform 1 via standard rotating components such as bearings. The transmission wheel 22 is fixedly mounted on the rotating shaft 21; the transmission wheel 22 supports and drives the conveyor belt 23. The conveyor belt 23 is fitted onto the transmission wheel 22, thereby forming a closed-loop conveying plane. The surface of the conveyor belt 23 can be made of anti-slip rubber or polyurethane material according to the material and requirements of the display screen to ensure stability during the conveying process and prevent the display screen from sliding.

[0024] In one embodiment of this invention, the power source for the conveying assembly 2 is a motor; this motor is connected to any rotating shaft 21 via a transmission mechanism (e.g., belt drive, chain drive, or direct connection via coupling). When the motor starts, it outputs torque, driving the rotating shaft 21 to rotate; the rotation of the rotating shaft 21 drives the transmission wheel 22 on it to rotate synchronously, thereby driving the conveyor belt 23 mounted on the transmission wheel 22 to move. By placing the display screen to be coated on the conveyor belt 23, it can be stably conveyed to the preset coating station, realizing the automation and continuity of the production process.

[0025] like Figure 3-5 As shown, in another preferred embodiment of this utility model, the three-dimensional motion module 3 includes linear drive mechanisms for the X-axis, Y-axis, and Z-axis; the X-axis linear drive mechanism enables the adhesive application module 4 to move laterally, allowing the adhesive to cover different positions of the display screen laterally; the Y-axis linear drive mechanism is responsible for the vertical movement of the adhesive application module 4, ensuring that the adhesive can reach all areas of the display screen vertically; the Z-axis linear drive mechanism can control the vertical movement of the adhesive application module 4 to adapt to the adhesive application requirements of displays with different thicknesses and adjust the distance between the adhesive application head and the display screen, ensuring the uniformity and accuracy of the adhesive application.

[0026] In this embodiment of the invention, the three-dimensional motion module 3 is composed of three mutually orthogonal linear drive mechanisms, which correspond to the X-axis, Y-axis and Z-axis in the coordinate system, respectively.

[0027] X-axis linear drive mechanism: This mechanism is installed laterally on the base platform 1. It includes an electromagnetic guide rail 311 and an electromagnetic slider 312. The electromagnetic guide rail 311 is fixedly arranged laterally along the base platform 1, providing a path for the movement of the electromagnetic slider 312. The electromagnetic slider 312 cooperates with the electromagnetic guide rail 311, and can perform linear reciprocating motion along the electromagnetic guide rail 311 under the action of electromagnetic force. The electromagnetic slider 312 is equipped with interfaces for connecting other components. Through these interfaces, it can be connected to the Y-axis linear drive mechanism, thereby driving the glue application module 4 to move in the X-axis direction. By precisely controlling the electromagnetic force, the movement speed and positional accuracy of the electromagnetic slider 312 can be adjusted to meet the movement requirements in the X-axis direction when applying glue to different displays. For example, for displays of different sizes, the glue application module 4 can be precisely moved to the appropriate starting glue application position, and move at a predetermined speed and path during the glue application process, ensuring the accuracy and consistency of the glue application.

[0028] Y-axis linear drive mechanism: This mechanism is responsible for longitudinal movement. It includes a support plate 321, a first servo motor 322, a bevel gear set 323, a first lead screw 324, a guide rod 325, a slider 326, an L-shaped plate 327, and a threaded sleeve 328. The support plate 321 is fixedly mounted on the electromagnetic slider 312 of the X-axis linear drive mechanism. The first servo motor 322 is mounted on the support plate 321, providing power to the Y-axis linear drive mechanism. The output shaft of the first servo motor 322 is connected to the bevel gear set 323, and the motor's power is transmitted to the first lead screw 324 through the transmission of the bevel gear set 323. The first lead screw 324 is rotatably connected to the support plate 321 and is arranged longitudinally, rotating under the drive of the bevel gear set 323. The guide rod 325 is mounted on the support plate 321 parallel to the first lead screw 324, providing guidance for the movement of the slider 326. The slider 326 is mounted on the guide rod 325 and slides with the guide rod 325. L-shaped plate 327 is fixedly mounted on the bottom of slider 326 and is used to connect with the Z-axis linear drive mechanism. A threaded sleeve 328 is also provided on L-shaped plate 327, which is threadedly engaged with the first lead screw 324. When the first lead screw 324 rotates, due to the threaded transmission between the threaded sleeve 328 and the lead screw, slider 326 will reciprocate linearly along guide rod 325. Thus, through the operation of the first servo motor 322, and via the transmission of the bevel gear set 323, the first lead screw 324, and the threaded sleeve 328, the longitudinal position movement of slider 326 can be precisely controlled, thereby driving the glue application module 4 to adjust its position in the Y-axis direction.

[0029] Z-axis linear drive mechanism: This mechanism is used for vertical lifting motion. It includes a mounting block 331, a second lead screw 332, a guide sleeve 333, a first gear set 334, and a second servo motor 335. Two mounting blocks 331 are provided: one fixed to one side of the L-shaped plate 327, and the other mounted on the slider 326. The mounting blocks 331 provide support for the entire Z-axis linear drive mechanism. The second lead screw 332 is rotatably connected to the mounting block 331 and is positioned vertically. The guide sleeve 333 is fitted onto the second lead screw 332 and threadedly engages with it. When the second lead screw 332 rotates, the guide sleeve 333 moves vertically along the lead screw. One end of the first gear set 334 is connected to the second lead screw 332, and the other end is connected to the output shaft of the second servo motor 335. The second servo motor 335 is mounted on the slider 326 and provides power to the Z-axis linear drive mechanism. When the second servo motor 335 operates, power is transmitted to the second lead screw 332 via the first gear set 334, causing the second lead screw 332 to rotate. Due to the threaded transmission between the guide sleeve 333 and the second lead screw 332, the guide sleeve 333 will move vertically along the second lead screw 332. An adhesive application module 4 is installed on the guide sleeve 333. When the guide sleeve 333 moves vertically, it will drive the adhesive application module 4 to rise and fall in the Z-axis direction. By precisely controlling the operation of the second servo motor 335, the precise position adjustment of the adhesive application module 4 in the vertical direction can be achieved to meet different adhesive application height requirements. Simultaneously, to ensure the stability and accuracy of the movement, a limit device can be set on the mounting block 331 to prevent excessive movement of the guide sleeve 333, ensuring the safe and reliable operation of the entire Z-axis linear drive mechanism.

[0030] In one embodiment of this invention, the Z-axis linear drive mechanism has two main functions: first, by adjusting the height, it can adapt to displays of different thicknesses, ensuring that the applicator head has sufficient working space; second, it can precisely adjust the working distance between the lower end of the applicator head and the surface of the display screen. Precise control of this distance is crucial for ensuring the consistency of the glue line width and the uniformity of the glue application, and is key to achieving high-quality glue application results.

[0031] like Figure 6-7 As shown in the preferred embodiment of this utility model, the glue application module 4 includes a glue cavity 43, a glue pressing assembly, and a glue tube 47. The glue cavity 43 is slidably mounted on the Z-axis linear drive mechanism via a connecting rod 42. The glue cavity 43 is used to store glue and provide a sufficient supply of glue for the glue application process. The glue pressing assembly is installed above the glue cavity 43 and applies pressure to the glue in the glue cavity 43 to keep the glue flow rate stable. One end of the glue tube 47 is connected to the glue cavity 43, and the other end is connected to the glue supply tank. Its function is to transport the glue in the glue supply tank to the glue cavity 43.

[0032] In this embodiment of the invention, the glue application module 4 is used to achieve a stable supply of glue. This module mainly includes a glue chamber 43, a glue pressing assembly, and a glue tube 47.

[0033] The glue cavity 43 is a sealed container for supplying glue. The glue cavity 43 is slidably mounted on the guide rod 41 via a connecting rod 42. The guide rod 41 has two members respectively positioned opposite each other on both sides of the second lead screw 332, and is used to guide the glue cavity 43. Driven by a Z-axis linear drive mechanism, the glue cavity 43 moves up and down along the Z-axis, thereby achieving actions such as approaching, contacting, and lifting relative to the workpiece to adapt to displays of different heights.

[0034] The pressure-pressing assembly applies constant pressure to the adhesive in the adhesive cavity 43, causing the adhesive to be supplied downwards, thereby ensuring that the adhesive flowing out of the applicator remains stable and avoiding uneven dispensing caused by changes in adhesive viscosity or liquid level.

[0035] The hose 47 serves as a conveying channel connecting the glue supply source and the glue chamber 43. One end of the hose 47 is connected to the glue inlet of the glue chamber 43, and the other end is connected to a glue supply tank located away from the working area. The glue supply tank typically has a large capacity, and the glue inside is centrifuged to remove air bubbles. The function of the hose 47 is to continuously replenish the glue in the glue supply tank to the glue chamber 43, ensuring a sufficient supply of glue during the coating process, thereby enabling long-term, continuous, automated production.

[0036] like Figure 7 As shown in the preferred embodiment of this utility model, the adhesive pressing assembly includes a screw 44, a first drive motor 45, and a second gear set 46. The screw 44 is installed inside the adhesive cavity 43, and the top end of the screw 44 is connected to the output shaft of the first drive motor 45 through the second gear set 46. When the first drive motor 45 is working, it drives the screw 44 to rotate through the second gear set 46. The rotation of the screw 44 will squeeze the adhesive in the adhesive cavity 43 from the bottom, thereby better ensuring the stability of the adhesive flow rate.

[0037] In this embodiment of the invention, the adhesive applicator includes a screw 44, a first drive motor 45, and a second gear set 46. The screw 44 is longitudinally installed inside the adhesive cavity 43, with its lower end near the adhesive outlet at the bottom of the adhesive cavity 43. The first drive motor 45 is fixedly installed on the top outer side of the adhesive cavity 43, with its output shaft extending vertically downward into the top of the adhesive cavity 43. The second gear set 46 is installed on the top of the adhesive cavity 43 and is used to connect the top end of the screw 44 to the output shaft of the first drive motor 45. When adhesive application is required, the first drive motor 45 is started, and its power is transmitted sequentially to the screw 44 through the second gear set 46, driving the screw 44 to rotate around its own axis within the adhesive cavity 43. When the screw 44 rotates, the spiral blades generate a downward thrust, thereby continuously and evenly squeezing the adhesive stored in the adhesive cavity 43 towards the bottom, allowing the adhesive to be stably discharged from the adhesive outlet at the bottom.

[0038] In one embodiment of this utility model, a screw 44 extrusion method is used to replace the traditional air pressure or piston-type glue supply, which can effectively avoid problems such as uneven glue dispensing and glue breakage caused by changes in glue viscosity or the presence of micro-air bubbles, thereby significantly improving the stability and controllability of glue flow and ensuring the glue coating quality of the product.

[0039] like Figure 7 As shown, in a preferred embodiment of this utility model, the adhesive tube 47 has a certain degree of flexibility and corrosion resistance, and can adapt to the positional changes of the adhesive application module 4 under the drive of the three-dimensional motion module 3, while ensuring that the adhesive will not leak during the transportation process.

[0040] In this embodiment of the invention, the hose 47 is made of a polymer material with good flexibility and excellent corrosion resistance, such as polytetrafluoroethylene or a specific grade of polyurethane. An internal reinforcing fiber braided layer may be provided to withstand a certain internal pressure and prevent collapse or breakage due to frequent bending.

[0041] The adhesive tube 47 has sufficient flexibility to bend and swing freely and smoothly as the three-dimensional motion module 3 drives the adhesive application module 4 to change its spatial position in multiple degrees of freedom, without generating excessive resistance or kinking, thereby ensuring the accuracy of the adhesive application path.

[0042] The inner wall of the hose 47 can resist the chemical corrosion of the delivered adhesive, prevent performance degradation or pipe blockage caused by material aging and swelling, and ensure long-term stability.

[0043] like Figure 8-9As shown in a preferred embodiment of this utility model, the glue dispensing control mechanism 5 consists of an adjustment component and a control component. The adjustment component includes a glue dispensing tube 56, a sliding sleeve 58, and a knob 59. The glue dispensing tube 56 is a centrally located circular tube, rotatably mounted at the bottom of the glue cavity 43. The middle of the glue dispensing tube 56 has an external thread matching the knob 59, and a notch is provided at its bottom. The knob 59 is mounted at the threaded part of the glue dispensing tube 56. The sliding sleeve 58 is slidably mounted at the bottom notch of the glue dispensing tube 56 via a limiting block, and the top of the sliding sleeve 58 is rotatably connected to the bottom of the knob 59. By rotating the knob 59, the depth of the sliding sleeve 58 covering the notch can be adjusted, thereby controlling the glue dispensing amount. The assembly includes a second drive motor 53, a transmission assembly 54, a missing gear 55, and a full gear 57. The second drive motor 53 is installed on the side of the glue cavity 43. A fixing block 51 is provided between the second drive motor 53 and the glue outlet of the glue cavity 43. A rotating rod 52 is rotatably provided on the fixing block 51. The missing gear 55 is provided at the bottom of the rotating rod 52. The output shaft of the second drive motor 53 is connected to the rotating rod 52 through the transmission assembly 54. The full gear 57 is installed on the glue outlet tube 56 and is at the same horizontal position as the missing gear 55. The second drive motor 53 drives the missing gear 55 to rotate, thereby driving the full gear 57 to rotate by a corresponding angle, which in turn drives the glue outlet tube 56 to rotate, changing the direction of the notch.

[0044] In this embodiment of the utility model, the glue quantity control mechanism 5 consists of two parts: an adjustment component and a control component, which together realize the precise adjustment of the glue quantity and the angle adjustment.

[0045] The adjustment assembly, used for fine-tuning the amount of adhesive dispensed per cycle, mainly includes a dispensing tube 56, a sliding sleeve 58, and a knob 59. The dispensing tube 56 is a hollow cylindrical tube, its upper part rotatably mounted at the bottom center of the adhesive cavity 43, serving as a channel for adhesive outflow. A section of the dispensing tube 56 has external threads. A radial notch is formed at the bottom of its tube wall, through which the adhesive ultimately flows out. The knob 59 is screwed onto the external threads in the middle of the dispensing tube 56 via its internal threads. The bottom of the knob 59 is rotatably connected to the top of the sliding sleeve 58. The sliding sleeve 58 is fitted around the bottom periphery of the dispensing tube 56. A limiting block is provided on the inner wall of the sliding sleeve 58, which engages with an axial groove on the outer wall of the dispensing tube 56, preventing the sliding sleeve 58 from rotating with the dispensing tube 56, but allowing it to slide up and down axially along the dispensing tube 56. The wall of the sliding sleeve 58 covers the outside of the notch in the dispensing tube 56.

[0046] When the operator rotates knob 59, the sliding sleeve 58 is restricted from rotating because knob 59 is threadedly connected to the dispensing tube 56. The rotational movement of knob 59 is converted into axial movement of itself and the sliding sleeve 58 connected to it. When knob 59 is rotated downwards, it causes the sliding sleeve 58 to move downwards, increasing the area of ​​the notch covered by the sliding sleeve 58, thus reducing the effective cross-sectional area of ​​the dispensing channel and reducing the amount of glue dispensed per cycle. Conversely, when knob 59 is rotated upwards, the sliding sleeve 58 moves upwards, reducing the coverage of the notch, enlarging the dispensing opening, and increasing the amount of glue dispensed per cycle. This structure allows for adjustment of the glue dispensing amount.

[0047] The control assembly, used to control the direction of glue dispensing, includes a second drive motor 53, a transmission assembly 54, a missing gear 55, and a full gear 57. The second drive motor 53 is fixedly mounted on the side of the glue cavity 43. A fixing block 51 is positioned between the second drive motor 53 and the glue outlet of the glue cavity 43. A rotating rod 52 is rotatably mounted on the fixing block 51. The missing gear 55 is fixedly mounted on the bottom of the rotating rod 52. This gear is not a complete gear; only a portion of its circumference has teeth, while the rest is a smooth, toothless curved surface. The transmission assembly 54 connects the output shaft of the second drive motor 53 to the upper end of the rotating rod 52 for transmitting power. This transmission assembly 54 can be a pulley mechanism, a gear set, etc. The full gear 57 is a complete gear, fixedly mounted on the upper part of the glue dispensing tube 56, and at the same horizontal level as the missing gear 55, so that the toothed portion of the missing gear 55 can mesh with the full gear 57 when it rotates.

[0048] When the glue dispensing direction needs to be adjusted, the second drive motor 53 starts, driving the rotating rod 52 and the notched gear 55 fixed thereon to rotate via the transmission assembly 54. When the toothed part of the notched gear 55 rotates to mesh with the full gear 57 on the glue dispensing tube 56, it drives the full gear 57 and the glue dispensing tube 56 to rotate together by an angle. This rotation causes the notch at the bottom of the glue dispensing tube 56 to change its orientation.

[0049] like Figure 1 and Figure 3 As shown, in a preferred embodiment of the present invention, the visual positioning module 6 is installed on the side of the glue cavity 43. It is used to identify the glue application position and size of the display screen and ensure that the notch of the glue tube 56 is aligned with the glue application position during the glue application process.

[0050] In this embodiment of the invention, the visual positioning module 6 typically consists of a high-resolution industrial camera and a matching light source. The main function of the visual positioning module 6 is to acquire images from the display screen at the adhesive application station before applying the adhesive, identify specific markings on the workpiece using image processing algorithms, and calculate the actual position and angular deviation of the workpiece. Subsequently, this deviation data is fed back to the three-dimensional motion module 3 in real time to compensate and correct the preset adhesive application path, thereby achieving precise alignment between the adhesive application module 4 and the workpiece, greatly improving the accuracy of the adhesive application position.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A display screen processing adhesive coating device, characterized in that, The display screen processing adhesive coating device includes: a base platform, a conveying component, a three-dimensional motion module, an adhesive coating module, an adhesive quantity control mechanism, and a vision positioning module; The base platform is used for the support and stability of the entire device; The conveying assembly is mounted on the base platform and is used to convey the display screen to be coated with adhesive; The three-dimensional motion module is disposed at the edge of the base platform. The three-dimensional motion module includes an X-axis drive mechanism, a Y-axis drive mechanism and a Z-axis drive mechanism. The three-dimensional motion module is used to drive the glue application module to move. The glue application module is mounted on the Z-axis drive mechanism of the three-dimensional motion module, and the glue application module is used to apply glue to the display screen. The adhesive quantity control mechanism is located at the bottom of the adhesive coating module, and the adhesive quantity control mechanism is used to adjust the amount of adhesive dispensed during the adhesive coating process; The visual positioning module is installed on the side of the adhesive application module. The visual positioning module is used to identify and locate the position and orientation of the display screen, and to provide motion data for the three-dimensional motion module.

2. The display screen processing adhesive coating device according to claim 1, characterized in that, The conveying assembly includes a rotating shaft, a drive wheel, and a conveyor belt; The rotating shaft is rotatably installed inside the base platform, the transmission wheel is fixedly installed on the rotating shaft, and the conveyor belt is sleeved on the transmission wheel. The rotating shaft is driven by a motor to rotate, thereby driving the transmission wheel to rotate, and in turn driving the conveyor belt to move in a cycle, so as to achieve stable transportation of the display screen to be coated.

3. The display screen processing adhesive coating device according to claim 1, characterized in that, The three-dimensional motion module includes linear drive mechanisms for the X-axis, Y-axis, and Z-axis; The X-axis linear drive mechanism enables the adhesive application module to move laterally, allowing the adhesive to cover different horizontal positions of the display screen. The Y-axis linear drive mechanism is responsible for the vertical movement of the adhesive application module, ensuring that the adhesive can reach all vertical areas of the display screen. The Z-axis linear drive mechanism controls the vertical lifting and lowering of the adhesive application module to adapt to the adhesive application requirements of displays with different thicknesses and to adjust the distance between the adhesive application head and the display screen, ensuring the uniformity and accuracy of the adhesive application.

4. The display screen processing adhesive coating device according to claim 1, characterized in that, The adhesive application module includes an adhesive cavity, an adhesive pressing assembly, and an adhesive tube; The glue chamber is slidably mounted on the Z-axis linear drive mechanism via a connecting rod. The glue chamber is used to store glue and provide a sufficient supply of glue for the glue application process. The glue pressing assembly is installed above the glue chamber and applies pressure to the glue in the glue chamber to keep the glue flow stable. One end of the glue tube is connected to the glue chamber, and the other end is connected to the glue supply tank. Its function is to transport the glue in the glue supply tank to the glue chamber.

5. The display screen processing adhesive coating device according to claim 4, characterized in that, The pressure bonding assembly includes a screw, a first drive motor, and a second gear set; The screw is installed inside the glue cavity. The top end of the screw is connected to the output shaft of the first drive motor through a second gear set. When the first drive motor is working, it drives the screw to rotate through the second gear set. The rotation of the screw will squeeze the glue in the glue cavity from the bottom, thereby better ensuring the stability of the glue flow rate.

6. The display screen processing adhesive coating device according to claim 4, characterized in that, The hose has a certain degree of flexibility and corrosion resistance, and can adapt to the positional changes of the glue application module driven by the three-dimensional motion module, while ensuring that the glue will not leak during the delivery process.

7. The display screen processing adhesive coating device according to claim 1, characterized in that, The adhesive quantity control mechanism consists of an adjustment component and a control component; The adjustment assembly includes a dispensing tube, a sliding sleeve, and a knob. The dispensing tube is a centrally located circular tube, rotatably mounted at the bottom of the glue chamber. The dispensing tube has an external thread in its middle section that matches the knob, and a notch is provided at its bottom. The knob is mounted on the threaded section of the dispensing tube. The sliding sleeve is slidably mounted at the notch at the bottom of the dispensing tube via a limiting block, and the top of the sliding sleeve is rotatably connected to the bottom of the knob. By rotating the knob, the depth to which the sliding sleeve covers the notch can be adjusted, thereby controlling the amount of glue dispensed. The control component includes a second drive motor, a transmission component, a missing gear, and a full gear; the second drive motor is installed on the side of the glue cavity, a fixing block is provided between the second drive motor and the glue outlet of the glue cavity, a rotating rod is rotatably provided on the fixing block, a missing gear is provided at the bottom of the rotating rod, and the output shaft of the second drive motor is connected to the rotating rod through the transmission component; The full gear is mounted on the dispensing tube and is at the same horizontal position as the missing gear. The missing gear is driven to rotate by the second drive motor, which in turn drives the full gear to rotate by a corresponding angle, thereby driving the dispensing tube to rotate and changing the direction of the notch.

8. The display screen processing adhesive coating device according to claim 1, characterized in that, The visual positioning module is installed next to the glue cavity. It is used to identify the glue application position and size of the display screen and ensure that the notch of the glue tube is aligned with the glue application position during the glue application process.

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