A car display screen boss-free backlight point gluing device

Abstract

The utility model provides a kind of vehicle-mounted display screen bossless backlight point gum device, it includes point gum table, the upper surface of the point gum table is connected with servo gantry, and the servo gantry is connected with point gum head;The upper surface of the point gum table is connected with assembly fixture, and the bottom of the assembly fixture is equipped with top piece mechanism;The top piece mechanism includes the accommodating cavity in the point gum table, the electric push rod connected in the accommodating cavity interior and the locking rod connected with the execution end of electric push rod.The utility model passes through laser ranging and servo stroke control technology, cancels traditional boss, avoids the problem that cover ink area is scratched due to boss, simultaneously improves the adhesion strength of point gum surface.

Description

Technical Field

[0001] This utility model mainly relates to the technical field of display screen processing, specifically to a backlight dispensing device for vehicle-mounted displays without protrusions. Background Technology

[0002] With the rapid development of new energy vehicles, automotive-related technologies are constantly being innovated. As a crucial component of intelligent cockpits and in-vehicle entertainment, the requirements for in-vehicle displays are becoming increasingly stringent, especially for narrow, thin, and large screens, which are gaining popularity among automakers and consumers. However, as the area of ​​the non-visible bonding portion shrinks, the design difficulty is gradually increasing, and the limitations of the raised platform design on the backlight are becoming apparent. A raised platform that is too small will inevitably scratch the ink and screen printing areas, resulting in visible light leakage at the screen edges. Conversely, a raised platform that is too wide cannot meet the bonding strength requirements of the adhesive surface. To solve this problem, it is crucial to develop a new technology that eliminates the need for raised platform design while maintaining the gap between the structural bonding surfaces. Traditionally, smaller dispensing widths and gaps are achieved by reducing the height and width of the boss. However, this method has certain limitations. The width of the boss in a typical backlight dispensing stage is between 2.0 and 4.0 mm. The width of the boss in a new generation of backlight dispensing stages is approaching 1.5 mm. The boss width must be between 1.0 and 1.5 mm to ensure that the ink area is not scratched by the sharp boss. At this point, the available dispensing width is too narrow, and the assembly risk is very high.

[0003] In the current field of backlight stage dispensing technology, although various methods exist to optimize the width of backlight bosses, these methods generally have shortcomings. For example, increasing the angle of the inclined surface around the boss, or increasing the length of the boss while reducing its width, can ensure the overall area of ​​the boss contact surface. However, if the width of the boss contact surface is too small, burrs generated during CNC machining of the boss can still scratch the ink area, failing to meet product quality requirements. In order to maximize the bonding width of the backlight stage dispensing surface, the boss can only be designed and manufactured with smaller widths and heights. At the same time, the boss height between 0.1-0.2mm has long been criticized for its high processing difficulty and poor limiting effect. Utility Model Content

[0004] This utility model mainly provides a protrusion-free backlight dispensing device for vehicle display screens to solve the technical problems mentioned in the background art.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A protrusion-free backlight dispensing device for an in-vehicle display screen includes a dispensing table, a servo gantry connected to the upper surface of the dispensing table, and a dispensing head connected to the servo gantry.

[0007] An assembly fixture is connected to the upper surface of the dispensing station, and a top component mechanism is provided at the bottom of the assembly fixture.

[0008] The top component mechanism includes a receiving cavity located within the dispensing station, an electric push rod connected inside the receiving cavity, and a locking rod connected to the actuating end of the electric push rod.

[0009] Furthermore, the servo gantry includes a Y-axis electric slide connected to both sides of the upper surface of the dispensing table. The execution end of the Y-axis electric slide is connected to a first slider, the upper surface of the first slider is connected to a Z-axis electric slide, and the execution ends of the two Z-axis electric slides are connected to a second slider.

[0010] Furthermore, one side of each of the two second sliders is connected to an x-axis electric slide, and the execution end of the x-axis electric slide is connected to a third slider, which is connected to a dispensing head.

[0011] Furthermore, a fourth slider is provided on one side of the third slider. The fourth slider is connected to the execution end of the x-axis electric slide, and a CCD camera is connected to one side surface of the fourth slider.

[0012] Furthermore, the assembly fixture is provided with a contour groove, and the bottom end of the contour groove is provided with a locking hole for inserting a locking rod.

[0013] Furthermore, the diameter of the locking rod is the same as the diameter of the locking hole.

[0014] Furthermore, an electromagnet is embedded at the top of the dispensing station, and the electromagnet is magnetically connected to the assembly fixture.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] Firstly, this utility model eliminates the traditional boss by using laser ranging and servo stroke control technology, thus avoiding the problem of the boss scratching the ink area of ​​the cover plate, while also improving the bonding strength of the adhesive surface.

[0017] Secondly, the protrusion-free design of this utility model can meet the production needs of narrow bezel and high screen-to-body ratio automotive displays, and adapt to the development trend of modern automotive displays.

[0018] Thirdly, the design of the multi-axis electric slide of this utility model enables the dispensing head to move precisely in three-dimensional space, which can adapt to backlight components of different sizes and shapes, thus improving the versatility and applicability of the device.

[0019] Fourth, the addition of the CCD camera in this invention makes the position monitoring during the dispensing process more accurate. Through image processing technology, the position of the dispensing head can be adjusted in real time to ensure the accuracy and reliability of dispensing, further improving the automation and intelligence level of the device.

[0020] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the present invention;

[0023] Figure 3 This is a schematic diagram of the assembly fixture of this utility model.

[0024] In the diagram: 1. Dispensing table; 11. Electromagnet; 2. Servo gantry; 21. Y-axis electric slide; 22. First slider; 23. Z-axis electric slide; 24. Second slider; 25. X-axis electric slide; 26. Third slider; 27. Fourth slider; 28. CCD camera; 3. Dispensing head; 4. Assembly fixture; 41. Contouring groove; 42. Locking hole; 5. Top component mechanism; 51. Receiving cavity; 52. Electric push rod; 53. Locking rod. Detailed Implementation

[0025] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the disclosure of the utility model more thorough and comprehensive.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] This application provides a protrusion-free backlight dispensing device for an automotive display screen, as shown in the schematic diagram below. Figure 1-3 As shown. The vehicle-mounted display screen backlight dispensing device without protrusions includes a dispensing table 1, a servo gantry 2 connected to the upper surface of the dispensing table 1, and a dispensing head 3 connected to the servo gantry 2;

[0029] An assembly fixture 4 is connected to the upper surface of the dispensing table 1, and a top component mechanism 5 is provided at the bottom of the assembly fixture 4.

[0030] The top component mechanism 5 includes a receiving cavity 51 disposed in the dispensing stage 1, an electric push rod 52 connected inside the receiving cavity 51, and a locking rod 53 connected to the actuating end of the electric push rod 52.

[0031] It should be noted that in this embodiment, the dispensing station 1 serves as a basic platform, with a servo gantry 2 connected to its upper surface. A dispensing head 3 is connected to the servo gantry. An assembly fixture 4 is also connected to the upper surface of the dispensing station 1. The bottom of the assembly fixture is equipped with a top-mounting mechanism 5, which includes a receiving cavity 51, an electric push rod 52, and a locking rod 53. During assembly, the electric push rod 52 extends and retracts, causing the locking rod 53 to insert into the locking hole 42 of the assembly fixture 4, thereby fixing the backlight assembly and ensuring its stability during dispensing and assembly. Through the electric push rod 52 and locking rod 53 of the top-mounting mechanism 5, dynamic support and positioning of the backlight assembly are achieved, avoiding the problem of scratching the ink area of ​​the cover plate by the boss in traditional boss designs, while also improving the flexibility and reliability of assembly.

[0032] Optionally, such as Figure 1 As shown, the servo gantry 2 includes a y-axis electric slide 21 connected to both sides of the upper surface of the dispensing table 1. The execution end of the y-axis electric slide 21 is connected to a first slider 22. The upper surface of the first slider 22 is connected to a z-axis electric slide 23. The execution ends of the two z-axis electric slides 23 are connected to a second slider 24.

[0033] In this embodiment, the servo gantry 2 includes a Y-axis electric slide 21 connected to both sides of the upper surface of the dispensing table 1. The actuator of the Y-axis electric slide is connected to a first slider 22, and the upper surface of the first slider is connected to a Z-axis electric slide 23. The actuators of the two Z-axis electric slides are connected to a second slider 24. Through the combination of the Y-axis and Z-axis electric slides, the dispensing head 3 can move precisely in both vertical and horizontal directions, achieving high-precision dispensing operations.

[0034] Optionally, such as Figure 1 As shown, one side of each of the two second sliders 24 is connected to the x-axis electric slide 25, and the execution end of the x-axis electric slide 25 is connected to a third slider 26, which is connected to the dispensing head 3.

[0035] In this embodiment, one side of each of the two second sliders 24 is connected to the x-axis electric slide 25, and the actuating end of the x-axis electric slide is connected to a third slider 26, which is connected to the dispensing head 3. Through the movement of the x-axis electric slide 25, the dispensing head 3 can move precisely in the horizontal direction, further improving the accuracy and flexibility of dispensing.

[0036] Optionally, such as Figure 1 and Figure 2 As shown, a fourth slider 27 is also provided on one side of the third slider 26. The fourth slider 27 is connected to the execution end of the x-axis electric slide 25. A CCD camera 28 is connected to one side surface of the fourth slider 27.

[0037] In this embodiment, a fourth slider 27 is also provided on one side of the third slider 26. The fourth slider is connected to the execution end of the x-axis electric slide 25, and a CCD camera 28 is connected to one side surface of the fourth slider. The CCD camera 28 is used to monitor the position information in real time during the dispensing process and ensures the precise alignment of the dispensing head 3 through image processing technology. The addition of the CCD camera 28 makes the position monitoring in the dispensing process more accurate. Through image processing technology, the position of the dispensing head 3 can be adjusted in real time to ensure the accuracy and reliability of dispensing, further improving the automation and intelligence level of the device.

[0038] Optionally, such as Figure 1 and Figure 3 As shown, the assembly fixture 4 is provided with a contour groove 41, and the bottom end of the contour groove 41 is provided with a locking hole 42, which is used for the locking rod 53 to be inserted.

[0039] In this embodiment, the assembly fixture 4 is provided with a contour groove 41, and the bottom end of the contour groove is provided with a locking hole 42 for the locking rod 53 to be inserted. Through the cooperation of the locking hole 42 and the locking rod 53, the backlight assembly is fixed and positioned, ensuring its stability during dispensing and assembly. The design of the contour groove 41 and the locking hole 42 allows the backlight assembly to be stably fixed on the assembly fixture 4, avoiding problems such as inaccurate dispensing or assembly failure caused by component movement, thus improving the stability and reliability of the assembly.

[0040] Optionally, such as Figure 1 and Figure 3 As shown, the diameter of the locking rod 53 is the same as the diameter of the locking hole 42.

[0041] In this embodiment, the diameter of the locking rod 53 is the same as the diameter of the locking hole 42, ensuring that the locking rod 53 can be accurately inserted into the locking hole 42, thereby achieving stable fixation of the backlight assembly. The precise fit between the locking rod 53 and the locking hole 42 further improves the stability of the backlight assembly on the assembly fixture 4, ensuring the smooth progress of the dispensing and assembly process, and improving the assembly quality of the product.

[0042] Optionally, such as Figure 1 and Figure 3 As shown, an electromagnet 11 is embedded at the top of the dispensing station 1, and the electromagnet 11 is magnetically connected to the assembly fixture 4.

[0043] In this embodiment, an electromagnet 11 is embedded at the top of the dispensing station 1, and the electromagnet is magnetically connected to the assembly fixture 4. Through the magnetic attraction of the electromagnet 11, the assembly fixture 4 can be stably fixed on the dispensing station 1, ensuring the stability of the assembly process. The addition of the electromagnet 11 allows the assembly fixture 4 to be more stably fixed on the dispensing station 1, avoiding assembly failures caused by fixture movement, and further improving the stability and reliability of the device.

[0044] The specific operation method of this utility model is as follows:

[0045] First, the dispensing operation is performed. Using a CCD camera 28, the dispensing head 3 is precisely controlled to move to the designated dispensing position for alignment based on pre-set coordinates. The CCD camera 28 can capture the positional information of the backlight assembly and cover plate in real time, and through image processing and analysis, achieve high-precision alignment, providing strong assurance for the accuracy of dispensing. Before the formal dispensing, a pilot dispensing operation is performed. Based on the glue width and height after dispensing, a reasonable dispensing nozzle height and frequency are selected by comparing with a dispensing data reference table. This process helps optimize dispensing parameters and ensures that the dispensing effect meets process requirements. Based on the pilot dispensing, the adjusted dispensing parameters are saved, and the formal dispensing operation begins. During the dispensing process, the dispensing head 3 evenly applies hot melt adhesive to the designated position of the backlight assembly according to the set parameters, forming a uniform adhesive layer, providing a good bonding foundation for subsequent assembly.

[0046] After dispensing, the assembly process begins. The dispensed backlight assembly is transferred to assembly fixture 4, and the servo gantry 2 controls the descent stroke to attach the cover plate and FOG (Follable Gate Optical) to the dispensed backlight assembly. At this point, the servo mechanism stops the bonding action, maintaining a certain height for 1-10 minutes. This process ensures a strong and reliable bond between the cover plate and the backlight assembly, while preventing poor bonding or damage due to excessive or insufficient pressure. Finally, the assembled product is removed from assembly fixture 4 and allowed to stand. During this standing period, the hot melt adhesive gradually cools and solidifies, further enhancing the bond strength between the cover plate and the backlight assembly, ensuring the overall performance and reliability of the product.

[0047] The present invention has been described above by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. A protrusion-free backlight dispensing device for a vehicle-mounted display screen, comprising a dispensing table (1), characterized in that, The upper surface of the dispensing station (1) is connected to a servo gantry (2), and a dispensing head (3) is connected to the servo gantry (2). The upper surface of the dispensing station (1) is connected to an assembly fixture (4), and the bottom end of the assembly fixture (4) is provided with a top component mechanism (5). The top component mechanism (5) includes a receiving cavity (51) disposed in the dispensing station (1), an electric push rod (52) connected inside the receiving cavity (51), and a locking rod (53) connected to the actuating end of the electric push rod (52).

2. The vehicle-mounted display screen backlight dispensing device without protrusions according to claim 1, characterized in that, The servo gantry (2) includes a y-axis electric slide (21) connected to both sides of the upper surface of the dispensing table (1). The execution end of the y-axis electric slide (21) is connected to a first slider (22). The upper surface of the first slider (22) is connected to a z-axis electric slide (23). The execution ends of the two z-axis electric slides (23) are connected to a second slider (24).

3. The vehicle-mounted display screen backlight dispensing device without protrusions according to claim 2, characterized in that, One side of each of the two second sliders (24) is connected to the x-axis electric slide (25), and the execution end of the x-axis electric slide (25) is connected to a third slider (26), which is connected to the dispensing head (3).

4. The protrusion-free backlight dispensing device for vehicle-mounted displays according to claim 3, characterized in that, A fourth slider (27) is also provided on one side of the third slider (26). The fourth slider (27) is connected to the execution end of the x-axis electric slide (25). A CCD camera (28) is connected to one side surface of the fourth slider (27).

5. The protrusion-free backlight dispensing device for vehicle-mounted displays according to claim 1, characterized in that, The assembly fixture (4) is provided with a contour groove (41), and the bottom end of the contour groove (41) is provided with a locking hole (42), which is used for the insertion of the locking rod (53).

6. The vehicle-mounted display screen backlight dispensing device without protrusions according to claim 1, characterized in that, The diameter of the locking rod (53) is the same as the diameter of the locking hole (42).

7. The vehicle-mounted display screen backlight dispensing device without protrusions according to claim 1, characterized in that, An electromagnet (11) is embedded at the top of the dispensing station (1), and the electromagnet (11) is magnetically connected to the assembly fixture (4).

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