Light guide plate sealant coating device
The SCARA robot arm and visual recognition module in the light guide plate sealant coating device address the lack of versatility in existing devices, ensuring uniform sealant application on varied shapes and sizes, thereby improving sealing performance.
Patent Information
- Application Number
- CN202420024103.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-05
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-01-05
AI Technical Summary
Existing light guide plate sealant coating devices lack versatility to adapt to diverse production needs, particularly in terms of shape and size, and fail to ensure uniform and continuous sealant application.
A light guide plate sealant coating device equipped with a SCARA robot arm that moves along multiple axes and rotates, combined with a visual recognition module for precise control, allowing for flexible application on various shapes and sizes, and a control valve for adjusting glue discharge parameters.
Enables uniform and continuous sealant application on diverse shapes and sizes, enhancing sealing performance and quality.
Smart Images
Figure CN222132434U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a gluing process for a light guide plate, in particular to a gluing device for gluing sealant for a light guide plate. Background Art
[0002] The light guide plate is a transparent or translucent sheet used to change the direction or distribution of light in the aircraft control panel. Its derivatives are widely used in liquid crystal displays, backlight modules, lighting and other fields. The sealant of the light guide plate is an adhesive used to fix and seal the light guide plate and other components, and has good bonding properties and weather resistance. The sealant coating of the light guide plate is a process of evenly coating the sealant on the light guide plate. The quality of the coating directly affects the sealing performance and quality of the light guide plate. The glue discharge needle of the existing light guide plate sealant coating device is controlled by a slide rail slider or a two-degree-of-freedom robotic arm. The disadvantage is that it cannot meet the diverse production needs and can only adapt to single or a few shapes and sizes of gluing tasks. Summary of the invention
[0003] The utility model aims to solve the problem that the light guide plate sealant coating device in the prior art cannot meet the diversified production requirements, and to provide a novel light guide plate sealant coating device.
[0004] In order to achieve the above-mentioned purpose, the utility model provides a technical solution: a light guide plate sealant gluing device, comprising: a conveyor belt. The conveyor belt is used to sequentially pass the light guide plate through a feed track, a glue dispensing area and a discharge track. The glue dispensing area is provided with a SCARA robot arm that can move along the X, Y, and Z axes and rotate around the Z axis. The tool end of the SCARA robot arm is provided with a glue coating device. The glue coating device has a glue storage box, a glue dispensing needle and a control valve. The glue storage box is filled with sealant. The glue storage box is connected to the control valve through a pipeline, and the control valve is connected to the glue dispensing needle through a pipeline. The glue dispensing amount and glue dispensing speed of the glue dispensing needle are controlled by the control valve.
[0005] As a preferred solution of the light guide plate sealant coating device, the glue discharge needle is a glue dispensing needle or a nozzle.
[0006] As a preferred solution of the light guide plate sealant coating device, it further includes: a visual recognition module, and the visual recognition module is used to control the movement parameters of the SCARA mechanical arm.
[0007] Compared with the prior art, the beneficial effects of the utility model are at least: 1. The SCARA robot arm has multiple degrees of freedom, which can drive the glue dispensing needle to move along the X, Y, and Z axes and rotate around the Z axis to achieve glue coating tasks of different sizes and / or shapes, including circular, narrow and long areas with arcs, etc.; 2. The glue discharge amount and glue discharge speed of the glue dispensing needle are controlled by the control valve to ensure uniform and continuous glue coating. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION
[0009] The present invention is further described in detail below through specific implementations in combination with the accompanying drawings. It should be noted that the description of these implementations is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in each implementation of the present invention described below can be combined with each other as long as they do not conflict with each other.
[0010] See also Figure 1 , the figure shows a light guide plate sealant gluing device. The light guide plate sealant gluing device comprises: a frame 1. The frame 1 is equipped with a workbench, an actuator, a protective cover and a display 5. The workbench is arranged with the actuator. The actuator has a conveyor belt 6, a limit cylinder 7 and a sensor 8. The conveyor belt 6 is used to transport the material from the feeding track 9 to the glue dispensing area, and to transport the glued material from the glue dispensing area to the dispensing track 11. The limit cylinder 7 is used to fix the position of the material. The sensor 8 is used to identify the feeding and discharging of the material. The glue dispensing area is provided with a SCARA robot arm 12. The SCARA robot arm 12 has four degrees of freedom and can move along the X, Y, and Z axes and rotate around the Z axis. The working range of the SCARA robot arm 12 is 400×400mm. The tool end of the SCARA robot arm 12 is equipped with a glue coating device and a calibration camera 14. The glue coating device includes a glue storage box 15, a glue discharge needle 16 and a control valve 17. The glue storage box 15 is filled with sealant. The glue storage box 15 is connected to the control valve 17 through a pipeline, and the control valve 17 is connected to the glue discharge needle 16 through a pipeline. The glue discharge amount and glue discharge speed of the glue discharge needle 16 are controlled by the control valve 17. The glue discharge needle 16 can be a dispensing needle or a nozzle. The calibration camera 14 is used to capture the feature points of the material or the fixture and calculate the position offset of the material.
[0011] Preferably, the light guide plate sealant gluing device further comprises: a visual recognition module based on machine vision technology. The visual recognition module is fixed on the workbench. The visual recognition module comprises a camera and an image processing unit. The camera is used to capture an image of the material and transmit the image to the image processing unit. The image processing unit is used to analyze the shape, size, position and gluing point of the light guide plate in the image, and control the motion parameters of the SCARA robot arm 12 according to the analysis results. The display 5 communicates with the visual recognition module. The display 5 is used to display the image and gluing track of the material and provide a human-computer interaction interface. The working principle of the visual recognition module is as follows: initialization configuration: manually put the material into the feeding track 9, and the conveyor belt 6 is used to deliver it to the gluing area. The sensor 8 recognizes the fixed position of the limit cylinder 7 after the material is fed. Offset calibration: after the material is fixed by the limit cylinder 7, the calibration camera 14 collects two feature points of the material or the fixture, calculates the offset of the material placement position, compensates for the gluing point, reduces the error and improves the accuracy. Controlling glue application: For a certain area selected on the material, through trajectory planning and path interpolation, the movement properties of the SCARA robot arm are optimized to ensure the smoothness and continuity of the gluing process, and a gluing trajectory is generated for gluing; or according to the order of the stored areas, a gluing trajectory is generated for all areas for gluing. Unloading: After the gluing step is completed, the conveyor belt 6 delivers the material to the discharging track 11. After the sensor 8 recognizes that the discharging is completed, the feeding track 9 will continue to feed the material. Finally, manual unloading.
[0012] The above only expresses the implementation mode of the utility model, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A light guide plate sealant coating device, characterized in that: include: A conveyor belt is used to sequentially convey the light guide plate through a feeding track, a glue dispensing area and a discharging track; the glue dispensing area is provided with a SCARA robot arm which can move along the X, Y and Z axes and rotate around the Z axis, the tool end of the SCARA robot arm is provided with a glue coating device, the glue coating device has a glue storage box, a glue dispensing needle and a control valve, the glue storage box is filled with sealant, the glue storage box is connected to the control valve through a pipeline, the control valve is connected to the glue dispensing needle through a pipeline, and the glue dispensing amount and glue dispensing speed of the glue dispensing needle are controlled by the control valve.
2. The light guide plate sealant coating device according to claim 1, characterized in that: The glue dispensing needle is a glue dispensing needle or a nozzle.
3. The light guide plate sealant coating device according to claim 1, characterized in that: Further including: A visual recognition module is used to control the motion parameters of the SCARA robot arm.