Carrying mechanism

Abstract

The embodiment of the utility model provides a carrying mechanism which comprises a carrying unit used for carrying a display panel, the carrying unit comprises a carrying arm, the carrying arm is provided with a plurality of adsorption pieces, the adsorption pieces respectively form more than three adsorption areas from the middle to the outer side, and the adsorption areas are respectively and independently controlled by electromagnetic valves and do not influence one another. If one adsorption area leaks vacuum, other adsorption areas cannot be influenced; meanwhile, the uninterruptible power supply is used for independently supplying power to the carrying arm, so that the situation that the display panel falls off due to power failure is avoided; furthermore, a first sensing part is arranged to sense whether the adsorption part is handed over in place or not, if not, an alarm is given in time, and through the design of a plurality of gantries, the bearing weight is large, and the stability of the carrying process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display panel production devices, and particularly relates to a conveying mechanism. Background Art

[0002] In recent years, liquid crystal display panels, especially ultra-large size liquid crystal display panels, have developed rapidly. The manufacturing of liquid crystal display panels has high technical and technological barriers, and the product production process is complex, mainly including multiple steps such as glue coating, exposure, development, etching, polyimide (PI) printing, rubbing, polarizer attachment, COG, and FOG bonding. Each step is very crucial, and any problem in any process will affect the product performance and yield. Among them, in the bonding production process, due to the large size, during the adsorption and conveying process, incomplete adsorption is likely to occur, resulting in problems such as dropping during transportation, inability to increase the conveying speed, and large conveying vibration. Summary of the Utility Model

[0003] The utility model provides a conveying mechanism to solve the problems of dropping and poor stability during the conveying of ultra-large size display panels in the prior art.

[0004] To solve the above problems, the technical solution adopted by the utility model is as follows:

[0005] The utility model provides a conveying mechanism, including a conveying unit for conveying a display panel. The conveying unit includes a conveying arm, and a plurality of independently controlled vacuum adsorption areas are arranged on the conveying arm. Each of the vacuum adsorption areas is provided with a plurality of adsorbing members; the vacuum adsorption areas are arranged in sequence from the middle of the conveying arm to the periphery.

[0006] Furthermore, it further includes an auxiliary adsorption area, which is located on the side of the conveying arm.

[0007] Preferably, the conveying arm includes a profile frame, and a plurality of first sensing members and second sensing members are arranged on the profile frame. The triggering end of the first sensing member faces the grasping direction of the adsorbing member, and the second sensing member is located on the side of the profile frame, and its triggering end faces outward.

[0008] Furthermore, the conveying unit includes an uninterruptible power supply, and the uninterruptible power supply supplies power to the conveying arm.

[0009] Preferably, the conveying arm further includes a mounting plate for mounting the adsorbing member and a fixing member for fixing the adsorbing member. The mounting plate is provided with fixing holes and mounting holes. The adsorbing member is mounted in the mounting holes, and a part of the adsorbing member is inserted into the fixing holes, and the fixing member restricts it in the fixing holes.

[0010] Furthermore, anti-collision blocks are fixed at the four corners of the conveying arm.

[0011] Furthermore, there are two or more sets of the transfer arms.

[0012] Furthermore, it includes a support unit for supporting the transfer unit. The support unit includes a cross beam, a plurality of gantry frames arranged side by side and spanning the cross beam, and cross columns for fixedly connecting adjacent gantry frames. The cross beam is fixedly arranged below the gantry frames.

[0013] Furthermore, a plurality of strengthening members are provided at the bottom of each gantry frame.

[0014] Furthermore, the support unit further includes a first moving part and a second moving part. The first moving part is arranged on the cross beam. The second moving part is fixedly arranged at the output end of the first moving part. The transfer arm is fixedly arranged at the output end of the second moving part.

[0015] Compared with the prior art, the present utility model has the following beneficial effects:

[0016] A transfer mechanism provided by the present utility model, by arranging a plurality of independent adsorption areas on the transfer arm and controlling them through independent solenoid valves, the adsorption areas do not affect each other. If one adsorption area leaks vacuum, it will not affect other adsorption areas, thus ensuring reliable adsorption and grasping of the display panel. At the same time, the transfer arm is independently powered by an uninterruptible power supply to avoid the situation that the display panel drops due to power failure of the solenoid valve or other electrical appliances caused by power cut. Further, by setting a first sensing member to sense whether the adsorbing part is transferred in place, if not sensed, an alarm is given immediately, improving the operation safety. And through multiple gantry designs, it can bear a large weight and improve the stability of the transfer process. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions proposed by the present utility model, the following will be described in detail in combination with embodiments and drawings. It should be understood that the drawings in the following description are only some embodiments of the present utility model, and those skilled in the art can make changes to these drawings under the concept of the present utility model.

[0018] Figure 1 It is an assembled three-dimensional view of the transfer mechanism provided by the present utility model;

[0019] Figure 2 It is an assembled three-dimensional view of the transfer unit provided by the present utility model;

[0020] Figure 3 It is an assembled three-dimensional view of the support unit provided by the present utility model.

[0021] 1. Conveyor unit; 11. Conveyor arm; 12. First sensor; 13. Second sensor; 14. Profile frame; 15. Adsorption member; 16. Mounting plate; 17. Fixing member; 18. Anti-collision block 2. Support unit; 21. Cross beam; 22. Gantry; 23. Cross column; 24. Connecting column; 25. First moving part; 26. Second moving part; 27. Reinforcing member. Detailed implementation

[0022] Next, the technical solutions in the embodiments will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Similar component numbers in the drawings represent similar components. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0023] A conveying mechanism provided by the present invention includes a conveying unit 1 for conveying a display panel and a support unit 2 for supporting the conveying unit 1.

[0024] Please refer to Figure 1 - Figure 2 , in this embodiment, the conveying unit 1 includes a conveying arm 11. In this embodiment, the conveying arm 11 includes a profile frame 14. A plurality of adsorption areas are provided on the profile frame 14. Each adsorption area is provided with a plurality of adsorption members 15. The adsorption member 15 can be a suction cup; specifically, in this implementation, a plurality of adsorption areas are arranged in sequence from the middle to the edge of the profile frame 14. The adsorption members 15 in each adsorption area are connected to the same branch pipe, and the branch pipe is controlled by an independent solenoid valve. The branch pipe is led out from the main air path. When the solenoid valve is opened, the corresponding branch pipe is connected to the main air path, and the adsorption members 15 in the corresponding adsorption area will adsorb the display panel. In this way, the adsorption areas do not affect each other. Even if one adsorption area leaks vacuum, the other adsorption areas can still adsorb the display panel and prevent the display panel from falling. In this embodiment, in order to realize the installation and flexible adjustment of the adsorption member 15, preferably, the conveying arm 11 further includes a mounting plate 16 for mounting the adsorption member 15 and a fixing member 17 for fixing the adsorption member 15. The mounting plate 16 is fixedly installed on the profile frame 14. The mounting plate 16 is provided with fixing holes and mounting holes. The fixing member 17 can be a striped handle, which is convenient for the operator to disassemble and install; the rod part of the adsorption member 15 is installed in the mounting hole, and the fixing member 17 can press its rod body to fix it on the mounting plate 16 and then fix it on the profile frame 14. In order to realize the adaptive grasping of display panels of different specifications, preferably, the profile frame 14 is provided with a long-shaped concave groove, and the mounting plate 16 can be adjusted arbitrarily in position and angle within the length of the concave groove, and the adsorption member 15 is fixed to the profile frame 14 through the fixing member 17.

[0025] In addition, since a flexible printed circuit is provided on one side of the display panel, in order to prevent damage caused by the sagging and swaying of the flexible printed circuit during the process of the transfer arm 11 carrying the display panel, or even scratching other unit parts, in this embodiment, an auxiliary adsorption area is preferably provided on the side of the profile frame 14. While the transfer arm 11 grabs the display panel, the auxiliary adsorption area will adsorb and grab the flexible printed circuit of the display panel, so as to ensure the fixed position as much as possible during the handling process, thus solving the above problems. It should be noted that the auxiliary adsorption area also includes a plurality of adsorbing members 15, which are connected to the main air path through branch pipes. Of course, an independently controlled solenoid valve is connected in series in the branch pipes, so that they can be independently controlled.

[0026] Please refer to Figure 3 , the support unit 2 includes a cross beam 21, a plurality of gantry frames 22 arranged side by side and spanning across the cross beam 21, a cross column 23 connecting between the gantry frames 22, and a connecting column 24 connecting the cross beam 21 and the gantry frames 22. The bottom of the gantry frame 22 is connected to the lower frame, and a plurality of strengthening members 27 are provided at the bottom of the gantry frame 22. By providing a plurality of gantry frames 22, the force of the cantilever of the transfer arm 11 is dispersed, the overall internal vibration is reduced, and the stability is good; further, a plurality of strengthening members 27 are provided to strengthen the stability of the gantry frame 22.

[0027] The support unit 2 further includes a first moving part 25 and a second moving part 26. The first moving part 25 is fixedly connected to the cross beam 21, the second moving part 26 is fixed to the output end of the first moving part 25, and the conveying arm is fixed to the output end of the second moving part 26. Thus, the first moving part 25 drives the second moving part 26 and the transfer arm 11 to move along the cross beam 21 for position switching; the second moving part 26 drives the transfer arm 11 to move in the vertical direction to realize rising after grabbing the display panel at the grabbing station or descending at the unloading station to place the display panel on the unloading station. In this embodiment, a linear motor can be used as the first driving member to drive a plurality of transfer arms 11 to perform linear reciprocating motion on the cross beam 21; the second driving member of the second moving part 26 can be a structure of a servo motor and a lead screw nut pair to drive a plurality of transfer arms 11 to perform vertical motion.

[0028] In order to further improve the safety and accuracy during the handling process, in this embodiment, preferably, a plurality of first sensing elements 12 and second sensing elements 13 are provided on the profile rack 14. The first sensing element 12 and the second sensing element 13 can be microswitches. The first sensing element 12 is located above the suction attachment 15. When the handling arm 11 moves down to the grasping position and the suction attachment 15 adsorbs the display panel, the contact head of the first sensing element 12 is touched through a buffering action, and then the first sensing key transmits a in-place signal to the controller. Thus, the controller will determine that the suction attachment 15 has completed the adsorption of the display panel. On the contrary, if the contact head of the first sensing element 12 is not triggered, the controller will judge that the handling arm 11 is not in place or the display panel is missing at the current position. In order not to affect the subsequent production or cause production failures, the controller will issue an alarm reminder through an audible and visual alarm.

[0029] Certainly, in order to realize the collaborative work and handling of multiple workstations, multiple handling arms 11 can be provided in this embodiment, and they move synchronously to realize the transfer of the display panel between multiple workstations. However, collisions may occur between the handling arms, causing damage to the display panel. For this reason, in this embodiment, preferably, the second sensing element 13 is located on both side edges of the profile rack 14. When the distance between the adjacent handling arm 11 and this handling arm 11 exceeds the set distance threshold, the second sensing element 13 will be triggered, and then the signal is transmitted to the controller. The controller will issue an alarm reminder through an audible and visual alarm, and at the same time, the handling arm 11 will pause until the worker confirms safety and then restart. Thus, collisions between the handling arms 11 are prevented from damaging the display panel. If the second sensing element 13 is not triggered, it is defaulted that the handling arm 11 is in a safe position.

[0030] In this embodiment, the handling unit 1 includes an uninterruptible power supply, and the uninterruptible power supply independently powers the handling arm 11 to prevent the display panel from falling and being damaged from the handling arm 11 due to power failure during the production process. Anti-collision blocks 18 are fixed at the four corners of the handling arm 11. The anti-collision blocks 18 can be urethane rubber pads to further prevent the handling arm 11 from colliding when performing rapid handling actions.

[0031] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0032] As described above, the above is the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A conveying mechanism, characterized in that, It includes a conveying unit for conveying a display panel. The conveying unit includes a conveying arm, and a plurality of independently controlled vacuum adsorption areas are provided on the conveying arm. A plurality of suction accessories are respectively arranged in each of the vacuum adsorption areas; the vacuum adsorption areas are arranged in sequence from the middle of the conveying arm to the periphery.

2. The conveying mechanism according to claim 1, wherein, It further includes an auxiliary adsorption area, which is located on the side of the conveying arm.

3. The conveying mechanism according to claim 1, wherein, The conveying arm includes a profile frame. A plurality of first sensors and second sensors are provided on the profile frame. The triggering end of the first sensor faces the grasping direction of the suction accessory, and the second sensor is located on the side of the profile frame, and its triggering end faces outward.

4. The conveying mechanism according to claim 1, wherein, The conveying unit includes an uninterruptible power supply, and the uninterruptible power supply supplies power to the conveying arm.

5. The conveying mechanism according to claim 1, wherein, The conveying arm further includes a mounting plate for mounting the suction accessory and a fixing member for fixing the suction accessory. Fixing holes and mounting holes are provided on the mounting plate. The suction accessory is mounted in the mounting hole, and part of the suction accessory is inserted into the fixing hole, and the fixing member restricts it in the fixing hole.

6. The conveying mechanism according to claim 1, wherein Collision blocks are fixed at the four corners of the conveying arm.

7. The conveying mechanism according to claim 1, wherein, There are two or more groups of the conveying arms.

8. The conveying mechanism according to any one of claims 1-7, characterized in that, It includes a support unit for supporting the conveying unit. The support unit includes a cross beam, a plurality of gantry frames arranged side by side and spanning across the cross beam, and cross columns for fixedly connecting adjacent gantry frames. The cross beam is fixedly arranged below the gantry frames.

9. The conveying mechanism according to claim 8, wherein, A plurality of strengthening members are provided at the bottom of each gantry frame.

10. The conveying mechanism according to claim 9, wherein The support unit further includes a first moving part and a second moving part. The first moving part is arranged on the cross beam, the second moving part is fixedly arranged at the output end of the first moving part, and the conveying arm is fixedly arranged at the output end of the second moving part.

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