Dispensing line for display panels

Abstract

The present application relates to a kind of display panel dispensing production line, its overall structure is simple, sequentially including feeding station, at least one dispensing station and discharging station;Dispensing station is provided with at least one dispensing mechanism and a positioning mechanism;Feeding station, dispensing station and discharging station are fed by conveying mechanism;Wherein by at least one group of reciprocating feeding device, reciprocating feeding device includes driver for providing reciprocating movement, moving platform for supporting and grabbing display panel, for controlling the movement direction of moving platform guiding assembly, driver controls the movement of moving platform under the guidance of guiding assembly to complete lifting and horizontal feeding, realize the smooth and reliable feeding of display panel instead of mechanical hand, can effectively save manufacturing cost and improve structural reliability, and reciprocating feeding can stably improve production efficiency.

Description

Technical Field

[0001] This invention relates to the field of display panel manufacturing technology, and in particular to a dispensing production line for display panels. Background Technology

[0002] Currently, in display panel processing equipment, dispensing is frequently required. During the dispensing process, robotic arms are often used for transport between workstations, enabling stable and reliable transport. However, if there are many dispensing areas on the front of the display panel, the robotic arm's gripping position often overlaps with the dispensing area, or the gripping position is reduced to avoid the dispensing area. This reduces the stability and reliability of the robotic arm's transport of the display panel. Furthermore, existing dispensing equipment has a complex structure, poor stability, and the use of multiple robotic arms is costly, making it uncompetitive in the market. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a dispensing production line for display panels, which addresses the shortcomings of the prior art.

[0004] This invention provides a dispensing production line for a display panel, which includes, in sequence, a loading station, at least one dispensing station, and an unloading station; the dispensing station is provided with at least one dispensing mechanism and one positioning mechanism; the loading station, the dispensing station, and the unloading station are connected by a conveying mechanism; the conveying mechanism consists of at least one set of reciprocating feeding devices, each reciprocating feeding device including a driver for providing reciprocating movement, a moving platform for supporting and gripping the display panel, and a guide component for controlling the moving direction of the moving platform; the driver controls the moving platform to move under the guidance of the guide component to complete lifting and horizontal feeding.

[0005] In some embodiments, the positioning mechanism includes a first positioning bracket and a second positioning bracket, with a gap between the first positioning bracket and the second positioning bracket to allow the mobile platform to pass through, and the first positioning bracket and the second positioning bracket support and fix the display panel by a positioning device.

[0006] In some embodiments, the positioning device includes a positioning clamp and a vacuum adsorption assembly, the positioning clamp including at least a first clamp and a second clamp for clamping and releasable opposite sides of the display panel.

[0007] In some embodiments, the loading station is provided with a pre-positioning mechanism, which includes a first pre-positioning bracket and a second pre-positioning bracket. There is a gap between the first pre-positioning bracket and the second pre-positioning bracket to allow the moving platform to pass through. The first positioning bracket and the second positioning bracket support and pre-fix the display panel through the pre-positioning device.

[0008] In some embodiments, the pre-positioning device includes at least a first pre-positioning block and a second pre-positioning block for fixing two adjacent sides of the display panel.

[0009] In some embodiments, the dispensing station is equipped with a pre-curing device for pre-curing the display panel after dispensing.

[0010] In some embodiments, the dispensing station is equipped with a CCD vision positioning device for identifying the dispensing position of the dispensing mechanism based on the image on the display panel.

[0011] In some embodiments, an inspection station is also included, which is equipped with an inspection device for inspecting the appearance of the adhesive on the display panel after dispensing, thereby distinguishing between good and defective products.

[0012] In some embodiments, the unloading station is provided with an unloading mechanism, a conveying mechanism, and a good product curing mechanism. The conveying mechanism is used to transfer defective products from the unloading mechanism and unload good products from the unloading mechanism to the good product curing mechanism for curing.

[0013] In some embodiments, the guide assembly includes an inclined guide rail that gradually rises from the loading side to the unloading side and extends horizontally, and a guide post that can move along the inclined guide rail and be assembled with the mobile platform.

[0014] Compared to related technologies, the dispensing production line for display panels provided in this embodiment of the invention has a simple overall structure, comprising a loading station, at least one dispensing station, and an unloading station in sequence; the dispensing station is equipped with at least one dispensing mechanism and one positioning mechanism; the loading station, dispensing station, and unloading station are connected by a conveying mechanism; wherein the conveying mechanism consists of at least one set of reciprocating feeding devices, the reciprocating feeding device including a driver for providing reciprocating movement, a moving platform for supporting and gripping the display panel, and a guide component for controlling the moving direction of the moving platform; the driver controls the moving platform to move under the guidance of the guide component to complete lifting and horizontal feeding, realizing a smooth and reliable feeding of the display panel instead of a robotic arm, which can effectively save manufacturing costs and improve structural reliability, and the reciprocating feeding can stably improve production efficiency.

[0015] Details of one or more embodiments of the present invention are set forth in the following drawings and description, so that other features, objects and advantages of the invention will be more readily understood. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 This is a structural diagram of the production line according to an embodiment of the present invention.

[0018] Figure 2 This is a structural diagram of the reciprocating feeding device according to an embodiment of the present invention.

[0019] Figure 3 This is a structural diagram of the pre-positioning mechanism according to an embodiment of the present invention.

[0020] Figure 4 This is a structural diagram of the positioning mechanism according to an embodiment of the present invention.

[0021] Figure 5 This is a structural diagram of the feeding mechanism according to an embodiment of the present invention.

[0022] In the diagram, 1. Loading station; 2. Unloading station; 3. First dispensing station; 4. Second dispensing station; 5. Third dispensing station; 6. Fourth dispensing station; 7. Fifth dispensing station; 8. 3D inspection short side dispensing station; 9. 3D inspection long side dispensing station; 10. Post-inspection station; 11. Conveying mechanism; 12. Reciprocating feeding device; 13. First driver; 14. Second driver; 15. First moving platform; 16. Second moving platform; 17. Third moving platform; 18. Linear guide rail; 19. First slide table; 20. Second slide table; 21. Third slide table; 22. First connecting rod; 23. Second connecting rod; 24. Lifting slide rail; 25. Lifting slider; 26. First horizontal slide rail; 27. First horizontal slider; 28. Second... 29. Horizontal slide rail; 30. Second horizontal slider; 31. Third horizontal slide rail; 32. Third horizontal slider; 33. First guide assembly; 34. Second guide assembly; 35. Third guide assembly; 36. Inclined guide rail; 37. Guide post; 38. Bracket; 39. First positioning bracket; 40. Second positioning bracket; 41. Positioning device; 42. First chuck; 43. Second chuck; 44. Pre-positioning mechanism; 45. First pre-positioning bracket; 46. Second pre-positioning bracket; 47. First pre-positioning block; 48. Second pre-positioning block; 49. Unloading mechanism; 50. Handling mechanism; 51. Good product curing mechanism; 52. First conveyor belt; 53. Second conveyor belt; 54. Support platform; 55. Ventilation and filtration system; 56. First connecting rod; 57. Second connecting rod. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. All other embodiments obtained by those skilled in the art based on the embodiments provided by this invention without inventive effort are within the scope of protection of this invention. Furthermore, it is understood that although the efforts made in such a development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this invention, some design, manufacturing, or production modifications based on the technical content disclosed in this invention are merely conventional technical means and should not be construed as insufficient disclosure of the invention.

[0024] In this invention, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this invention may be combined with other embodiments without conflict.

[0025] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "a," "an," "an," "the," and similar words used in this invention do not indicate quantity limitation and may indicate singular or plural. The terms "comprising," "including," "having," and any variations thereof used in this invention are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that includes a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units not listed, or may include other steps or units inherent to these processes, methods, products, or devices. The terms "connected," "linked," "coupled," and similar words used in this invention are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "A plurality" used in this invention means two or more. "And / or" describes the relationship between related objects, indicating that three relationships may exist; for example, "A and / or B" can represent: A alone, A and B simultaneously, and B alone. The terms "first," "second," and "third" used in this invention are merely to distinguish similar objects and do not represent a specific ordering of the objects.

[0026] like Figure 1As shown, the dispensing production line for display panels provided in this embodiment of the invention is generally divided into a loading station 1, a dispensing station, and a unloading station 2 from the beginning to the end, and performs the loading, dispensing, and unloading functions in sequence. Furthermore, in practical applications, it is necessary to inspect the display panels that have completed dispensing at the dispensing station, so a pre-inspection station is set up, and a post-inspection station 10 is also set between the dispensing station and the unloading station 2.

[0027] like Figure 1-5 As shown, this embodiment divides the dispensing station into three stages according to process requirements: a first dispensing station 3, a second dispensing station 4, and a third dispensing station 5 at the front stage, and a fourth dispensing station 6 and a fifth dispensing station 7 at the rear stage. Each of these dispensing stations is equipped with a dispensing mechanism and a positioning mechanism. The first dispensing station 3, the second dispensing station 4, and the third dispensing station 5 perform side dispensing (in this embodiment, the display panel has two short sides and one long side that require dispensing), while the fourth dispensing station 6 and the fifth dispensing station 7 perform LGP glue dispensing and Ref glue dispensing, respectively. Furthermore, a front-stage inspection station is set between the front and rear stages to detect the side dispensing effect of the front stage. Items that fail the inspection at the front-stage inspection station can be treated as defective products, saving the subsequent LGP glue and Ref glue dispensing processing and inspection. These defective products are then discharged from the unloading station 2, saving processing costs. In this embodiment, the pre-stage inspection station is divided into a 3D inspection station 8 for short side adhesive and a 3D inspection station 9 for long side adhesive. Each of these stations is equipped with a 3D vision inspection device. These devices acquire images, perform feature recognition and comparison, and then output the inspection results. The separate inspection devices serve two purposes: first, to improve recognition accuracy; and second, to extend the pre-curing time of the pre-stage dispensing process, facilitating subsequent dispensing. The post-stage inspection station 10 is also equipped with a 3D vision inspection device to detect LGP adhesive and Ref adhesive dispensing. The principle of the 3D vision inspection device is existing technology and will not be elaborated upon here.

[0028] like Figure 1 As shown, in this embodiment, the feeding of the display panel is completed by the conveying mechanism 11 between the loading station 1, the dispensing station and the unloading station 2. Specifically, the feeding is completed by the conveying mechanism 11 between the loading station 1 and the first dispensing station 3, between the first dispensing station 3 and the second dispensing station 4, between the second dispensing station 4 and the third dispensing station 5, between the third dispensing station 5 and the 3D detection short side dispensing station 8, between the 3D detection short side dispensing station 8 and the 3D detection long side dispensing station 9, between the 3D detection long side dispensing station 9 and the fourth dispensing station 6, between the fourth dispensing station 6 and the fifth dispensing station 7, and between the fifth dispensing station 7 and the subsequent detection station 10.

[0029] like Figure 1-2As shown, the conveying mechanism 11 in this embodiment consists of three sets of reciprocating feeding devices 12. Each set of reciprocating feeding devices 12 includes a first driver 13 for driving reciprocating horizontal movement, three sets of moving platforms for supporting and gripping the display panel, three sets of guide components for controlling the movement direction of the moving platforms, and a second driver 14 for driving the moving platforms to lift along the movement direction limited by the guide components. The second driver 14 controls the moving platforms to move under the guidance of the guide components to complete the lifting and picking up of materials, and the first driver 13 controls the horizontal movement of the moving platforms to feed materials between each workstation. The three sets of moving platforms include a first moving platform 15, a second moving platform 16, and a third moving platform 17. In order to provide linear and stable horizontal movement, a linear guide rail 18 is provided. A first slide 19, a second slide 20, and a third slide 21 are slidably mounted on the linear guide rail 18. The first slide 19, the second slide 20, and the third slide 21 are connected by a first connecting rod 22 and a second connecting rod 23, respectively. The output shaft of the first driver 13 is connected to the second slide 20. A first moving platform 15, a second moving platform 16, and a third moving platform 17 are respectively mounted on the first slide 19, the second slide 20, and the third slide 21. The first moving platform 15, the second moving platform 16, and the third moving platform 17 are mounted on the first slide 19, the second slide 20, and the third slide 21 via lifting slide rails 24 and lifting sliders 25. A first guide assembly 32, a second guide assembly 33, and a third guide assembly 34 are respectively mounted on the first slide 19, the second slide 20, and the third slide 21 via first horizontal slide rails 26 and first horizontal sliders 27, second horizontal slide rails 28 and second horizontal sliders 29, third horizontal slide rails 30 and third horizontal sliders 31. The first guide assembly 32 and the second guide assembly 33 are connected by a first connecting rod 55, and the second guide assembly 33 and the third guide assembly 34 are connected by a second connecting rod 56. The second driver 14 described above is mounted on the second slide 20, and the output shaft of the second driver 14 is connected to the second guide assembly 33 in a transmission connection. The second drive 14 uses a linear cylinder to control the second guide component 33 to move along the second horizontal slide rail 28 via the second horizontal slider 29. At the same time, the second guide component 33 drives the first guide component 32 and the third guide component 34 to move synchronously via the first link 55 and the second link 56. During the movement of the first guide component 32, the second guide component 33 and the third guide component 34 in the same direction, due to the guiding effect, the first moving platform 15, the second moving platform 16 and the third moving platform 17 move in the same direction (horizontally) while being raised and lowered along the lifting slide rail 24 and the lifting slider 25, respectively, and finally achieve diagonal movement. Through this diagonal movement, the first moving platform 15, the second moving platform 16 and the third moving platform 17 can respectively lift the display panel to pick up materials, move out of the current workstation, and return after feeding materials.The reciprocating feeding device 12 with the above-described structure enables feeding between every four stations. For example, in the loading station 1, the first dispensing station 3, the second dispensing station 4, and the third dispensing station 5, the first moving platform 15 picks up the display panel from the loading station 1 and delivers it to the first dispensing station 3, while the second moving platform 16 picks up the dispensed display panel from the first dispensing station 3 and delivers it to the second dispensing station 4, and the third moving platform 17 simultaneously picks up the dispensed display panel from the second dispensing station 4 and delivers it to the third dispensing station 5. In this way, three moving platforms feed the material sequentially between the four stations. It should be noted that during the feeding process, the moving platform rises from a position below the positioning mechanism to a position above the positioning mechanism, and during the reset process, the moving platform descends from a position above the positioning mechanism to a position below the positioning mechanism.

[0030] like Figure 2 As shown, to achieve the oblique movement of the mobile platform, the guide assembly in this embodiment includes an oblique guide rail 35 that gradually rises from the loading side to the unloading side and extends horizontally, and a guide post 36 that can move along the oblique guide rail 35 and be assembled and connected to the mobile platform. The guide post 36 acts as a transmission component, driving the guide post 36 to move during the horizontal movement of the oblique guide rail 35, thereby causing the mobile platform to move obliquely. The guide post 36 can also be a guide wheel or other component that can act as a transmission component within the oblique guide rail 35. The platform tilts upwards for material discharge and tilts downwards for resetting.

[0031] like Figure 2 As shown, in order to enable the mobile platform to grasp and move the display panel, a bracket 37 and a vacuum adsorption device are provided on the mobile platform. The bracket 37 supports and lifts the display panel, and the vacuum adsorption device adsorbs and grasps the display panel. The bracket 37 is provided with a vacuum adsorption connection hole.

[0032] like Figure 4 As shown, the positioning mechanism in this embodiment includes a first positioning bracket 38 and a second positioning bracket 39. A gap exists between the first positioning bracket 38 and the second positioning bracket 39 to allow the moving platform to pass through. The first positioning bracket 38 and the second positioning bracket 39 are supported and fixed to the display panel by a positioning device 40. Specifically, the positioning device 40 includes a positioning clamp and a vacuum adsorption assembly. The positioning clamp includes at least a first clamp 41 and a second clamp 42 for clamping and releasing the opposite sides of the display panel. The first clamp 41 and the second clamp 42 are driven by a first clamp 41 driver and a second clamp 42 driver, respectively, to release and clamp. During processing, after the first clamp 41 and the second clamp 42 are fixed in position, they are adsorbed and fixed by the vacuum adsorption assembly. After dispensing or inspection, the moving platform is raised and the display panel is adsorbed by the vacuum adsorption device, after which the positioning clamp and the vacuum adsorption assembly are released.

[0033] like Figure 3As shown, the loading station 1 in this embodiment is equipped with a pre-positioning mechanism 43. The pre-positioning mechanism 43 includes a first pre-positioning bracket 44 and a second pre-positioning bracket 45. There is a gap between the first pre-positioning bracket 44 and the second pre-positioning bracket 45 to allow the moving platform to pass through. The first positioning bracket 38 and the second positioning bracket 39 are supported and pre-fixed to the display panel by a pre-positioning device 40. The pre-positioning device 40 includes at least a first pre-positioning block 46 and a second pre-positioning block 47 for fixing two adjacent sides of the display panel. The first pre-positioning block 46 and the second pre-positioning block 47 are respectively driven by cylinders to pre-position the position of the display panel, which can be achieved by manual or automated loading.

[0034] To ensure the effectiveness of the pre-dispensing process after the initial dispensing is completed, a pre-curing device is installed at the dispensing station. This device is used to pre-cur the display panel after dispensing. The pre-curing device uses a UV LED point light source for curing. The pre-curing device is located above the dispensing station.

[0035] To ensure precise dispensing, a CCD vision positioning device 40 is installed at the dispensing station to identify the dispensing position of the dispensing mechanism based on the image on the display panel. The CCD vision positioning device 40 acquires the position image of the display panel, extracts image features, identifies the dispensing position, and generates a dispensing path. The CCD vision positioning device 40 is positioned above the dispensing station.

[0036] As shown in the figure, the unloading station 2 in this embodiment is equipped with an unloading mechanism 48, a conveying mechanism 49, and a good product curing mechanism 50. The conveying mechanism 49 uses a robotic arm to transfer defective products from the unloading mechanism 48, and the good products from the unloading mechanism 48 are conveyed to the good product curing mechanism 50 for curing. Since the front end of the unloading mechanism 48 also needs to interact with the moving platform to feed the display panel, the front end structure still needs to have a gap for the moving platform to enter in order to allow the moving platform to deliver the display panel to the unloading mechanism 48. Specifically, the unloading mechanism 48 includes a first conveyor belt 51, a second conveyor belt 52, and a support platform 53. The front end of the support platform 53 has a U-shaped structure with a gap for the moving platform to pass through. The first conveyor belt 51 is located on one side of the support platform 53, and the second conveyor belt 52 is located on the other side of the support platform 53. When the display panel enters the front end of the unloading mechanism 48, both the first conveyor belt 51 and the second conveyor belt 52 receive the display panel under the support of the U-shaped structure at the front end of the support platform 53.

[0037] Between the loading station 1 and the unloading station 2, a ventilation and filtration system 54 is installed in a semi-enclosed manner through the frame.

[0038] Those skilled in the art should understand that the technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments have been described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A dispensing production line for a display panel, characterized in that, It includes, in sequence, a material loading station (1), a glue-at-a-point station, and a material unloading station (2). The dispensing station is equipped with at least one dispensing mechanism and one positioning mechanism; The loading station (1), dispensing station and unloading station (2) are connected by a conveying mechanism (11); The conveying mechanism (11) consists of at least one set of reciprocating feeding devices (12). The reciprocating feeding device (12) includes a driver for providing reciprocating movement, a moving platform for supporting and gripping the display panel, and a guide component for controlling the moving direction of the moving platform. The driver controls the moving platform to move under the guidance of the guide component to complete lifting and horizontal feeding. The unloading station (2) is equipped with an unloading mechanism (48), a conveying mechanism (49) and a good product curing mechanism (50). The conveying mechanism (49) is used to transfer the defective products on the unloading mechanism (48) and the good products on the unloading mechanism (48) are transported to the good product curing mechanism (50) for curing. The unloading mechanism (48) includes a first conveyor belt (51), a second conveyor belt (52), and a support platform (53). The front end of the support platform (53) has a U-shaped structure with a gap to allow the moving platform to pass through. The first conveyor belt (51) is located on one side of the support platform (53), and the second conveyor belt (52) is located on the other side of the support platform (53). When the display panel enters the front section of the unloading mechanism (48), both the first conveyor belt (51) and the second conveyor belt (52) support the display panel under the support of the U-shaped structure at the front end of the support platform (53).

2. The dispensing production line for a display panel according to claim 1, characterized in that, The positioning mechanism includes a first positioning bracket (38) and a second positioning bracket (39), with a gap between the first positioning bracket (38) and the second positioning bracket (39) allowing the mobile platform to pass through. The first positioning bracket (38) and the second positioning bracket (39) are supported and fixed to the display panel by a positioning device (40).

3. The dispensing production line for a display panel according to claim 2, characterized in that, The positioning device (40) includes a positioning clamp and a vacuum adsorption assembly. The positioning clamp includes at least a first clamp (41) and a second clamp (42) for clamping and releasing opposite sides of the display panel.

4. The dispensing production line for a display panel according to claim 2, characterized in that, The loading station (1) is equipped with a pre-positioning mechanism (43), which includes a first pre-positioning bracket (44) and a second pre-positioning bracket (45). There is a gap between the first pre-positioning bracket (44) and the second pre-positioning bracket (45) to allow the moving platform to pass through. The first positioning bracket (38) and the second positioning bracket (39) are supported and pre-fixed to the display panel by a pre-positioning device (40).

5. The dispensing production line for a display panel according to claim 4, characterized in that, The pre-positioning device (40) includes at least a first pre-positioning block (46) and a second pre-positioning block (47) for fixing two adjacent sides of the display panel.

6. The dispensing production line for a display panel according to claim 1, characterized in that, The dispensing station is equipped with a pre-curing device, which is used to pre-cur the display panel after dispensing.

7. The dispensing production line for a display panel according to claim 1, characterized in that, The dispensing station is equipped with a CCD vision positioning device (40) for identifying the dispensing position of the dispensing mechanism based on the image on the display panel.

8. The dispensing production line for a display panel according to claim 1, characterized in that, It also includes an inspection station, which is equipped with an inspection device. The inspection device is used to inspect the appearance of the glued display panel after glue application, thereby distinguishing between good and defective products.

9. The dispensing production line for a display panel according to claim 1, characterized in that, The guiding assembly includes an inclined guide rail (35) that gradually rises from the loading side to the unloading side and extends horizontally, and a guide post (36) that can move along the inclined guide rail (35) and be assembled and connected to the mobile platform.

Images