Finished product discharging device for display screen assembling equipment

Abstract

The utility model discloses a kind of finished product unloading devices for display screen assembly equipment, including pressure maintaining unit connected on rack carrier, visual inspection unit, first transfer unit, second transfer unit and third transfer unit;Visual inspection unit is set to the first end of rack carrier, and first transfer unit is erected on visual inspection unit and extends to the first end outside of rack carrier;Pressure maintaining unit is set to the middle part of rack carrier, and second transfer unit is set to the first side side of pressure maintaining unit and is connected between visual inspection unit and pressure maintaining unit;The second end side of rack carrier is provided with finished product temporary storage unit, and third transfer unit is set to the second side side of pressure maintaining unit and is connected between finished product temporary storage unit and pressure maintaining unit.The finished product unloading device of the application can release the pressure maintaining operation of assembly device in advance, reduce the waiting time of the front process of assembly device, effectively improve the overall production efficiency of display screen assembly equipment.

Description

Technical Field

[0001] This utility model belongs to the technical field of liquid crystal display manufacturing equipment, specifically relating to a finished product unloading device for display assembly equipment. Background Technology

[0002] In the production process of LCD screens, display assembly equipment is used to bond and assemble backlight modules and display modules together. During the bonding and assembly process, after dispensing adhesive onto the backlight module, it is fed into the assembly device for pre-bonding with the display module, followed by pressure holding. After pressure holding is completed, the finished display screen is unloaded. In automated display screen assembly equipment, the pressure holding process takes a relatively long time, resulting in long waiting times in both upstream and downstream processes, thus requiring improvement in production efficiency. Utility Model Content

[0003] In view of this, the present invention provides a finished product unloading device for display screen assembly equipment to solve the problem of how to reduce the pressure holding time in the bonding assembly process and thus improve production efficiency.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A finished product unloading device for display assembly equipment includes a frame platform and a pressure holding unit, a vision inspection unit, a first transfer unit, a second transfer unit and a third transfer unit connected to the frame platform;

[0006] The visual inspection unit is disposed at the first end of the rack platform, and the first transfer unit is mounted on the visual inspection unit and extends to the outside of the first end of the rack platform. The first transfer unit is used to send the finished display screen assembled in the previous process into the visual inspection unit for visual inspection.

[0007] The pressure holding unit is located in the middle of the frame platform, and the second transfer unit is located on the first side of the pressure holding unit and connected between the visual inspection unit and the pressure holding unit. The second transfer unit is used to transfer the finished display screen from the visual inspection unit to the pressure holding unit for pressure holding.

[0008] A finished product temporary storage unit is provided on the second side of the frame platform, and the third transfer unit is provided on the second side of the pressure holding unit and connected between the finished product temporary storage unit and the pressure holding unit. The third transfer unit is used to transfer the finished display screen from the pressure holding unit to the finished product temporary storage unit.

[0009] In a preferred embodiment, the first transfer unit includes a first linear drive assembly and a first gripping assembly. The first linear drive assembly is mounted on the vision inspection unit and extends along a first direction to the outside of a first end of the frame platform. The first gripping assembly is movably connected to the first linear drive assembly and is configured to grip and move the finished display screen.

[0010] In a preferred embodiment, the vision inspection unit includes a fourth linear drive assembly, a transfer stage, and a vision inspection assembly. The fourth linear drive assembly is connected to the rack stage and extends along a second direction between the first transfer unit and the second transfer unit. The transfer stage is movably connected to the fourth linear drive assembly, and the vision inspection assembly is mounted across the fourth linear drive assembly.

[0011] In a preferred embodiment, the transfer stage includes a support platform and vacuum nozzles, the support platform being movably connected to the fourth linear drive assembly, and the plurality of vacuum nozzles being detachably connected to the support platform.

[0012] In a preferred embodiment, the finished product unloading device further includes a non-conforming product unloading conveyor belt, which is disposed at the first end of the frame platform and extends along the second direction. The non-conforming product unloading conveyor belt is located below the first transfer unit and arranged in parallel with the visual inspection unit. The first transfer unit is also used to transfer the finished display screen products that fail the visual inspection unit to the non-conforming product unloading conveyor belt for unloading.

[0013] In a preferred embodiment, the pressure-holding unit includes a support frame, and the support frame is provided with a plurality of transverse partitions spaced apart from bottom to top. A pressure-holding station is formed between two adjacent transverse partitions. Each pressure-holding station is provided with a pressure-holding platform and a pressure-holding counterweight. The second transfer unit is also used to remove the pressure-holding counterweight from the pressure-holding station or to place the pressure-holding counterweight into the pressure-holding station.

[0014] In a preferred embodiment, each pressure holding station is equipped with a sensing probe, which is used to detect the working status of the pressure holding station.

[0015] In a preferred embodiment, the second transfer unit includes a second linear drive assembly, a second gripping assembly, and a third gripping assembly. The second linear drive assembly is connected to the rack platform and extends along a first direction between the vision inspection unit and the pressure holding unit. The second linear drive assembly is a dual-actuator linear drive assembly. The second gripping assembly and the third gripping assembly are sequentially and movably connected to the second linear drive assembly in a direction gradually moving away from the vision inspection unit. The second gripping assembly is configured to grip and move the finished display screen, and the third gripping assembly is configured to grip and move the pressure holding counterweight. The third transfer unit includes a third linear drive assembly and a fourth gripping assembly. The third linear drive assembly is connected to the rack platform and extends along a first direction between the finished product storage unit and the pressure holding unit. The fourth gripping assembly is movably connected to the third linear drive assembly and is configured to grip and move the finished display screen.

[0016] In a preferred embodiment, the second gripping component and the fourth gripping component each include a first lifting drive mechanism, a first connecting plate, a first telescopic drive mechanism, and a fork; the first connecting plate is movably connected to the output end of the first lifting drive mechanism, the first telescopic drive mechanism is connected to the first connecting plate, and the fork is movably connected to the output end of the first telescopic drive mechanism; the first lifting drive mechanism in the second gripping component is movably connected to the second linear drive component, and the first lifting drive mechanism in the fourth gripping component is movably connected to the third linear drive component.

[0017] In a preferred embodiment, the third gripping component includes a second lifting drive mechanism, a second connecting plate, a second telescopic drive mechanism, and grippers; the second lifting drive mechanism is movably connected to the second linear drive component, the second connecting plate is movably connected to the output end of the second lifting drive mechanism, the second telescopic drive mechanism is connected to the second connecting plate, and the grippers are movably connected to the output end of the second telescopic drive mechanism.

[0018] This utility model provides a finished product unloading device for a display screen assembly equipment. Connected to the assembly device within the equipment, it unloads finished display screen products obtained through bonding and assembly in the assembly device. The unloading device includes a pressure-holding unit for maintaining pressure on the finished display screen products, thereby reducing the pressure-holding time after bonding and assembly in the assembly device. In actual production operations, initial pressure holding can be performed in the assembly device, and then pressure holding can continue during the unloading process. This allows for earlier release of pressure from the assembly device, reducing waiting time in the preceding processes and effectively improving the overall production efficiency of the display screen assembly equipment. Attached Figure Description

[0019] Figure 1 This is a planar layout diagram of the finished product feeding device in an embodiment of this utility model;

[0020] Figure 2 This is a perspective view of the finished product feeding device in an embodiment of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the first transfer unit in an embodiment of this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the first grasping component in an embodiment of this utility model;

[0023] Figure 5 This is a schematic diagram of the transfer platform of the visual inspection unit in this embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the visual inspection component in an embodiment of this utility model;

[0025] Figure 7 This is a schematic diagram of the pressure-holding unit in an embodiment of the present invention;

[0026] Figure 8 This is a schematic diagram of the structure of the second transfer unit in an embodiment of this utility model;

[0027] Figure 9 This is a schematic diagram of the structure of the second gripping component in an embodiment of the present invention;

[0028] Figure 10 This is an enlarged view of the fork portion of the second gripping component in an embodiment of this utility model;

[0029] Figure 11 This is a schematic diagram of the structure of the third gripping component in an embodiment of this utility model;

[0030] Figure 12 This is an enlarged view of the gripper portion of the third gripping component in an embodiment of this utility model;

[0031] Figure 13 This is a schematic diagram of the structure of the third transfer unit in an embodiment of this utility model;

[0032] Figure 14 This is an exemplary illustration of the third transfer unit in this embodiment of the present invention sending the finished display screen into the finished product storage unit. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Examples of these preferred embodiments are illustrated in the drawings. The embodiments of this utility model shown in and described with reference to the drawings are merely exemplary, and this utility model is not limited to these embodiments.

[0034] It should be noted that the same or similar reference numerals in the accompanying drawings of the embodiments of this utility model correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0035] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0036] This utility model embodiment provides a finished product unloading device for display screen assembly equipment, such as... Figures 1 to 14 As shown, the finished product unloading device mainly includes a frame platform 100 and a pressure holding unit 1, a vision inspection unit 2, a first transfer unit 3, a second transfer unit 4 and a third transfer unit 5 connected to the frame platform 100. It also includes a finished product temporary storage unit 6 disposed on the second end side of the frame platform 100.

[0037] The visual inspection unit 2 is disposed at the first end of the rack platform 100, and the first transfer unit 3 is mounted on the visual inspection unit 2 and extends to the outside of the first end of the rack platform 100. The first transfer unit 3 is used to send the finished display screen assembled in the previous process into the visual inspection unit 2, whereby the visual inspection unit 2 performs visual inspection on the finished display screen.

[0038] The pressure-holding unit 1 is located in the middle of the frame platform 100, and the second transfer unit 4 is located on the first side of the pressure-holding unit 1 and connected between the visual inspection unit 2 and the pressure-holding unit 1. The second transfer unit 4 is used to transfer the finished display screen from the visual inspection unit 2 to the pressure-holding unit 1, whereby the pressure-holding unit 1 holds the finished display screen under pressure.

[0039] The third transfer unit 5 is disposed on the second side of the pressure holding unit 1 and connected between the finished product storage unit 6 and the pressure holding unit 1. The third transfer unit 5 is used to transfer the finished display screen from the pressure holding unit 1 to the finished product storage unit 6, which is used to store the finished display screen. For a specific embodiment, please refer to [reference needed]. Figure 14 The finished product temporary storage unit 6 can be configured as a movable frame. When the finished product temporary storage unit 6 is fully loaded, it can be driven by the AGV mobile trolley 200 to transfer the finished display screen to a designated location on the production site for storage.

[0040] In this embodiment, see Figure 1 and Figure 2 The finished product unloading device further includes a non-conforming product unloading conveyor belt 7, which is disposed at the first end of the frame platform 100 and extends along a second direction (the width direction of the frame platform 100 in this embodiment). The non-conforming product unloading conveyor belt 7 is located below the first transfer unit 3 and is arranged parallel to the visual inspection unit 2. The first transfer unit 3 is also used to transfer the finished display screen products that fail the visual inspection unit 2 to the non-conforming product unloading conveyor belt 7 for unloading.

[0041] Specifically, the finished display screens inspected in the visual inspection unit 2 are: if they pass the inspection, they are transferred by the second transfer unit 4 to the pressure holding unit 1 for pressure holding; if they fail the inspection, they are transferred by the first transfer unit 3 to the non-conforming product unloading conveyor belt 7 for unloading.

[0042] The finished product unloading device provided in the above embodiment is connected to the assembly device in the display assembly equipment. It is used to unload the finished display products obtained by bonding and assembling in the assembly device. In the finished product unloading device, a pressure holding unit 1 for holding the finished display products is provided on the unloading transmission path. In actual production operation, the initial pressure holding can be carried out in the assembly device, and then the pressure holding of the finished display products can continue during the unloading process. This can release the pressure holding operation of the assembly device in advance, reduce the waiting time of the front-end process of the assembly device, and effectively improve the overall production efficiency of the display assembly equipment.

[0043] In this embodiment, see Figure 3 and Figure 4 and combined Figures 1 to 2As shown, the first transfer unit 3 includes a first linear drive assembly 31 and a first gripping assembly 32. The first linear drive assembly 31 is mounted on the vision inspection unit 2 and extends along a first direction (in this embodiment, the length direction of the rack platform 100) to the outside of a first end of the rack platform 100. The first gripping assembly 32 is movably connected to the first linear drive assembly 31 and is configured to grip and move the finished display screen. The first gripping assembly 32 grips the finished display screen from the assembly device in the previous process and, driven by the first linear drive assembly 31, sends the finished display screen into the vision inspection unit 2.

[0044] In this embodiment, see Figure 5 and Figure 6 and combined Figures 1 to 2 As shown, the visual inspection unit 2 includes a fourth linear drive assembly 21, a transfer stage 22, and a visual inspection assembly 23. The fourth linear drive assembly 21 is connected to the rack stage 100 and extends along the second direction between the first transfer unit 3 and the second transfer unit 4. The transfer stage 22 is movably connected to the fourth linear drive assembly 21, and the visual inspection assembly 23 is erected across and above the fourth linear drive assembly 21. The transfer stage 22 carries the finished display screen fed in by the first transfer unit 3 and moves towards the second transfer unit 4 under the drive of the fourth linear drive assembly 21. When it moves to below the visual inspection assembly 23, the visual inspection assembly 23 performs inspection. Based on the image information obtained by the visual inspection assembly 23, it determines whether the finished display screen assembled in the previous process is defective.

[0045] As a preferred embodiment, the transfer platform 22 includes a support platform 221 and vacuum nozzles 222. The support platform 221 is movably connected to the fourth linear drive assembly 21, and multiple vacuum nozzles 222 are detachably connected to the support platform 221. Specifically, the vacuum nozzles 222 are disposed in magnetic fixing blocks 223, which are magnetically connected to the support platform 221. Based on the above structure, the transfer platform 22 allows for adjustment of the specific positions of the magnetic fixing blocks 223 and the corresponding vacuum nozzles 222 according to the size of the finished display screen, enabling the transfer platform 22 to be used for various display screen products of different specifications.

[0046] In this embodiment, see Figure 7 and combined Figures 1 to 2As shown, the pressure-holding unit 1 includes a support frame 11, with multiple transverse partitions 12 spaced apart from bottom to top. A pressure-holding station 1a is formed between two adjacent transverse partitions 12. Each pressure-holding station 1a is equipped with a pressure-holding platform 13 and a pressure-holding counterweight 14. The second transfer unit 4 is further configured to remove the pressure-holding counterweight 14 from the pressure-holding station 1a or to place the pressure-holding counterweight 14 into the pressure-holding station 1a.

[0047] Furthermore, each of the pressure holding stations 1a is provided with a sensing probe 15, which is used to detect the working status of the pressure holding station 1a.

[0048] The working process of the pressure holding unit 1 as described above mainly includes:

[0049] (a1) The working status of the pressure holding station 1a is detected by the sensing probe 15 to determine whether the pressure holding station 1a is in an idle state or in a pressure holding state.

[0050] (a2) After the second transfer unit 4 removes the finished display screen that has passed visual inspection from the visual inspection unit 2, it selects one of the idle pressure holding stations 1a, and the second transfer unit 4 takes out the pressure holding counterweight 14 from the pressure holding station 1a. Then, the finished display screen is sent into the pressure holding station 1a and placed on the pressure holding platform 13. The second transfer unit 4 then sends the pressure holding counterweight 14 into the pressure holding station 1a and places it on the finished display screen. The pressure holding counterweight 14 presses against the finished display screen to maintain pressure.

[0051] (a3) After the pressure holding is completed, the second transfer unit 4 takes out the pressure holding counterweight 14, and then the third transfer unit 5 takes out the finished display screen. The second transfer unit 4 then sends the pressure holding counterweight 14 into the pressure holding station 1a and places it on the pressure holding platform 13.

[0052] In this embodiment, the finished product unloading device has two pressure holding units 1 arranged side by side. Each pressure holding unit 1 has multiple pressure holding stations 1a arranged sequentially from bottom to top. This allows multiple finished display screens to be pressure-held simultaneously. While satisfying the pressure holding operation in the front-end assembly device in advance, a longer pressure holding time can be set in the finished product unloading device. This improves production efficiency while ensuring the quality of the finished display screens.

[0053] In this embodiment, see Figure 8 and combined Figures 1 to 2As shown, the second transfer unit 4 includes a second linear drive assembly 41, a second gripping assembly 42, and a third gripping assembly 43. The second linear drive assembly 41 is connected to the frame platform 100 and extends along a first direction between the vision inspection unit 2 and the pressure holding unit 1. The second linear drive assembly 41 is a dual-actuator linear drive assembly. The second gripping assembly 42 and the third gripping assembly 43 are sequentially and movably connected to the second linear drive assembly 41 in a direction that gradually moves away from the vision inspection unit 2. The second gripping assembly 42 is configured to grip and move the finished display screen, and the third gripping assembly 43 is configured to grip and move the pressure holding counterweight 14.

[0054] In this embodiment, see Figure 13 and Figure 14 and combined Figures 1 to 2 As shown, the third transfer unit 5 includes a third linear drive assembly 51 and a fourth gripping assembly 52. ​​The third linear drive assembly 51 is connected to the rack platform 100 and extends along a first direction between the finished product storage unit 6 and the pressure holding unit 1. The fourth gripping assembly 52 is movably connected to the third linear drive assembly 51 and is configured to grip and move the finished display screen.

[0055] The second grasping component 42 and the fourth grasping component 52 have the same structure. The second grasping component 42 will be used as an example for specific explanation below.

[0056] See Figures 8 to 10 The second gripping component 42 includes a first lifting drive mechanism 421, a first connecting plate 422, a first telescopic drive mechanism 423, and a fork 424. The first lifting drive mechanism 421 is movably connected to the second linear drive component 41, the first connecting plate 422 is vertically connected to the output end of the first lifting drive mechanism 421, the first telescopic drive mechanism 423 is connected to the first connecting plate 422, and the fork 424 is movably connected to the output end of the first telescopic drive mechanism 423. It should be noted that the first lifting drive mechanism in the fourth gripping component 52 is movably connected to the third linear drive component 51.

[0057] Based on the second gripping component 42 as described above, the process by which the second transfer unit 4 transfers the finished display screen from the visual inspection unit 2 to the pressure holding unit 1 includes:

[0058] (b1) The second linear drive component 41 drives the second gripping component 42 to move to the side of the visual detection unit 2, and the first lifting drive mechanism 421 drives the adjustment of the height of the fork 424 so that the height of the fork 424 in the vertical direction corresponds to the bottom of the finished display screen.

[0059] (b2) The first telescopic drive mechanism 423 drives the fork 424 to extend from the first connecting plate 422 and insert into the bottom of the finished display screen to support the finished display screen. The first lifting drive mechanism 421 drives the first connecting plate to raise the fork 424 and lift the finished display screen. Figure 9 The diagram shows the state of the finished display screen supported by the fork 424 from the bottom.

[0060] (b3) The first telescopic drive mechanism 423 drives the fork 424 to retract the finished display screen onto the first connecting plate 422, and the second linear drive component 41 drives the second gripping component 42 to move the finished display screen to the pressure holding unit 1.

[0061] (b4) Through the driving adjustment of the second linear drive component 41 and the first lifting drive mechanism 421, the fork 424 drives the finished display screen to move to the target pressure holding station 1a. The first telescopic drive mechanism 423 drives the fork 424 to extend from the first connecting plate 422 and send the finished display screen into the pressure holding station 1a. Then the first lifting drive mechanism 421 drives the fork 424 to descend, so that the finished display screen is placed in the pressure holding station 1a.

[0062] (b5) The first telescopic drive mechanism 423 drives the fork 424 to retract to the first connecting plate 422, and the second linear drive component 41 drives the second gripping component 42 to return to the visual detection unit 2 to grip the next finished display screen.

[0063] In this embodiment, see Figure 8 , Figure 11 and Figure 12 The third gripping component 43 includes a second lifting drive mechanism 431, a second connecting plate 432, a second telescopic drive mechanism 433, and a gripper 434. The second lifting drive mechanism 431 is movably connected to the second linear drive component 41, the second connecting plate 432 is vertically connected to the output end of the second lifting drive mechanism 431, the second telescopic drive mechanism 433 is connected to the second connecting plate 432, and the gripper 434 is movably connected to the output end of the second telescopic drive mechanism 433.

[0064] Based on the third gripping component 43 described above, the process of the second transfer unit 4 removing the pressure-holding counterweight 14 from the pressure-holding unit 1 and placing the pressure-holding counterweight 14 back includes:

[0065] (c1) Through the driving adjustment of the second linear drive component 41 and the second lifting drive mechanism 431, the gripper 434 is moved to face the target pressure holding station 1a. The second telescopic drive mechanism 433 drives the gripper 434 to extend from the second connecting plate 432 and into the pressure holding station 1a. Then the gripper 434 clamps the pressure holding counterweight 14 in the pressure holding station 1a. Figure 11 The diagram shows the state of the gripper 434 holding the pressure-holding counterweight 14.

[0066] (c2) The second telescopic drive mechanism 433 drives the fork 424 to retract the pressure-holding counterweight 14 onto the second connecting plate 432. The second linear drive component 41 drives the third gripping component 43 to move laterally, avoiding the second gripping component 42 so that the second gripping component 42 can send the finished display screen into the pressure-holding station 1a.

[0067] (c3) After the second gripping component 42 sends the finished display screen into the pressure holding station 1a, the second linear drive component 41 drives the third gripping component 43 to move laterally to face the pressure holding station 1a. The second telescopic drive mechanism 433 drives the gripper 434 to extend from the second connecting plate 432 and send the pressure holding counterweight 14 into the pressure holding station 1a. The gripper 434 releases the pressure holding counterweight 14 so that the pressure holding counterweight 14 presses against the finished display screen.

[0068] (c4) The second telescopic drive mechanism 433 drives the fork 424 to retract onto the second connecting plate 432, and the second linear drive component 41 drives the third gripping component 43 to move laterally, waiting for the next round of operation.

[0069] In summary, the finished product unloading device provided in this utility model embodiment has a pressure-holding unit for holding the finished display screen along the unloading and conveying path. In actual production operations, a short initial pressure holding can be performed in the assembly device, and then the pressure holding of the finished display screen can continue during the finished product unloading process. This allows the pressure holding operation of the assembly device to be released in advance, reducing the waiting time of the front-end processes of the assembly device and effectively improving the overall production efficiency of the display screen assembly equipment.

[0070] The above description is only a specific embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A finished product unloading device for display screen assembly equipment, characterized in that, It includes a frame platform and a pressure holding unit, a vision inspection unit, a first transfer unit, a second transfer unit, and a third transfer unit connected to the frame platform; The visual inspection unit is disposed at the first end of the rack platform, and the first transfer unit is mounted on the visual inspection unit and extends to the outside of the first end of the rack platform. The first transfer unit is used to send the finished display screen assembled in the previous process into the visual inspection unit for visual inspection. The pressure holding unit is located in the middle of the frame platform, and the second transfer unit is located on the first side of the pressure holding unit and connected between the visual inspection unit and the pressure holding unit. The second transfer unit is used to transfer the finished display screen from the visual inspection unit to the pressure holding unit for pressure holding. A finished product temporary storage unit is provided on the second side of the frame platform, and the third transfer unit is provided on the second side of the pressure holding unit and connected between the finished product temporary storage unit and the pressure holding unit. The third transfer unit is used to transfer the finished display screen from the pressure holding unit to the finished product temporary storage unit.

2. The finished product feeding device according to claim 1, characterized in that, The first transfer unit includes a first linear drive assembly and a first gripping assembly. The first linear drive assembly is mounted on the vision inspection unit and extends along a first direction to the outside of a first end of the frame platform. The first gripping assembly is movably connected to the first linear drive assembly and is configured to grip and move the finished display screen.

3. The finished product feeding device according to claim 1, characterized in that, The vision inspection unit includes a fourth linear drive assembly, a transfer stage, and a vision inspection assembly. The fourth linear drive assembly is connected to the rack stage and extends along a second direction between the first transfer unit and the second transfer unit. The transfer stage is movably connected to the fourth linear drive assembly, and the vision inspection assembly is mounted across the fourth linear drive assembly.

4. The finished product feeding device according to claim 3, characterized in that, The transfer stage includes a support platform and vacuum nozzles. The support platform is movably connected to the fourth linear drive assembly, and the plurality of vacuum nozzles are detachably connected to the support platform.

5. The finished product feeding device according to claim 1, characterized in that, The finished product unloading device also includes a non-conforming product unloading conveyor belt, which is disposed at the first end of the frame platform and extends along the second direction. The non-conforming product unloading conveyor belt is located below the first transfer unit and is arranged in parallel with the visual inspection unit. The first transfer unit is also used to transfer the finished display screens that fail the visual inspection unit to the non-conforming product unloading conveyor belt for unloading.

6. The finished product feeding device according to any one of claims 1-5, characterized in that, The pressure holding unit includes a support frame, and the support frame is provided with a plurality of transverse partitions spaced apart from bottom to top. A pressure holding station is formed between two adjacent transverse partitions. Each pressure holding station is provided with a pressure holding platform and a pressure holding counterweight. The second transfer unit is also used to remove the pressure holding counterweight from the pressure holding station or to place the pressure holding counterweight into the pressure holding station.

7. The finished product feeding device according to claim 6, characterized in that, Each of the pressure holding stations is equipped with a sensing probe, which is used to detect the working status of the pressure holding station.

8. The finished product feeding device according to claim 6, characterized in that, The second transfer unit includes a second linear drive assembly, a second gripping assembly, and a third gripping assembly. The second linear drive assembly is connected to the frame platform and extends along a first direction between the vision inspection unit and the pressure holding unit. The second linear drive assembly is a dual-actuator linear drive assembly. The second gripping assembly and the third gripping assembly are sequentially and movably connected to the second linear drive assembly in a direction that gradually moves away from the vision inspection unit. The second gripping assembly is configured to grip and move the finished display screen, and the third gripping assembly is configured to grip and move the pressure holding counterweight. The third transfer unit includes a third linear drive assembly and a fourth gripping assembly. The third linear drive assembly is connected to the rack platform and extends along a first direction between the finished product storage unit and the pressure holding unit. The fourth gripping assembly is movably connected to the third linear drive assembly and is configured to grip and move the finished display screen.

9. The finished product feeding device according to claim 8, characterized in that, The second gripping component and the fourth gripping component respectively include a first lifting drive mechanism, a first connecting plate, a first telescopic drive mechanism, and a fork; the first connecting plate is vertically connected to the output end of the first lifting drive mechanism, the first telescopic drive mechanism is connected to the first connecting plate, and the fork is movably connected to the output end of the first telescopic drive mechanism. The first lifting drive mechanism in the second gripping component is movably connected to the second linear drive component, and the first lifting drive mechanism in the fourth gripping component is movably connected to the third linear drive component.

10. The finished product feeding device according to claim 8, characterized in that, The third gripping component includes a second lifting drive mechanism, a second connecting plate, a second telescopic drive mechanism, and grippers; the second lifting drive mechanism is movably connected to the second linear drive component, the second connecting plate is movably connected to the output end of the second lifting drive mechanism, the second telescopic drive mechanism is connected to the second connecting plate, and the grippers are movably connected to the output end of the second telescopic drive mechanism.

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