Display panel transfer device and display panel coating equipment

Abstract

The utility model relates to a kind of display panel transfer device and display panel coating equipment, display panel transfer device includes shell, base and support column. Transfer chamber is provided in shell, base is movably arranged at the bottom of transfer chamber. Support column includes upper support body, lower support body and middle connecting body, two ends of middle connecting body are respectively threadedly connected with upper support body and lower support body, one end of upper support body away from middle connecting body is used to abut with display panel, one end of lower support body away from middle connecting body is detachably connected with base, and fracture groove is provided on lower support body. When display panel collides with support column, it can cause the fracture of support column from the position of fracture groove, thereby reducing the risk of display panel being broken, reducing the scrap rate of product. Lower support body can be used as a spare part for storage and replacement, avoiding the replacement of the entire support column, which helps to reduce maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of display device manufacturing technology, and in particular to a display panel transfer device and a display panel coating equipment. Background Technology

[0002] The coating process is a crucial step in display panel manufacturing, involving the deposition and sputtering of a metal film onto the glass substrate. Since the coating process occurs in a vacuum environment, a transfer device is needed between the vacuum coating chamber and the external space to facilitate the transfer of the display panel. This transfer device alternates between vacuum and atmospheric conditions to accommodate the transfer of the display panel from the external space into the coating chamber, or vice versa. Figure 1 As shown, a conventional transfer device includes a housing 1' and support columns 2' disposed inside the housing 1'. The housing 1' is a hollow structure, forming a transfer chamber 10' inside. A first door 11' and a second door 12' are respectively located at opposite ends of the housing 1'. Before coating, the display panel 3' is transported sequentially through the second door 12', the transfer chamber 10', and the first door 11' into the coating chamber. After coating, the display panel 3' is transported sequentially through the first door 11', the transfer chamber 10', and the second door 12' to the external space. Multiple support columns 2' are spaced apart at the bottom of the transfer chamber 10' to support the display panel 3'. The display panel 3' needs to be spaced apart from the bottom of the transfer chamber 10' to avoid obstructing the robotic arm used to transport the display panel 3'.

[0003] The existing technology has the following shortcomings: Because the coating chamber is at a high temperature, the display panel 3' may deform during transportation due to alternating hot and cold temperatures. Since the robotic arm's movement trajectory is relatively fixed, there is a risk of the display panel 3' colliding with the support column 2' during transportation. In the event of a collision, if the support column 2' is strong enough, the display panel 3' may shatter, rendering the product unusable. If the support column 2' is weak enough, it may break, requiring the entire transfer device to be disassembled and replaced. Furthermore, because the breakage location of the support column 2' is random, the entire support column 2' is typically kept as a spare part, increasing the maintenance cost of the entire transfer device. Utility Model Content

[0004] The purpose of this utility model is to propose a display panel transfer device and a display panel coating equipment, which have low maintenance costs and low scrap rate during product transportation.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] In a first aspect, a display panel relay device is provided, comprising:

[0007] The housing has a transfer chamber inside for accommodating the display panel;

[0008] A base, which is movably disposed at the bottom of the transfer chamber;

[0009] The support column includes an upper support body, a lower support body, and a middle connecting body. The two ends of the middle connecting body are threadedly connected to the upper support body and the lower support body, respectively. The end of the upper support body facing away from the middle connecting body is used to abut against the display panel. The end of the lower support body facing away from the middle connecting body is detachably connected to the base. The lower support body is provided with a fracture groove. The fracture strength of the corresponding area of ​​the fracture groove is lower than the fracture strength of other areas in the lower support body.

[0010] As a preferred embodiment of the display panel transfer device, the lower support body is provided with external threads along its axial direction, and a plurality of fracture grooves are provided at intervals on the lower support body, one of which is located between the middle connecting body and the base.

[0011] As a preferred embodiment of the display panel transfer device, the lower support body is provided with two fracture grooves at intervals. The fracture grooves divide the lower support body into a first threaded segment, a second threaded segment, and a third threaded segment connected in sequence. The lengths of the first threaded segment and the third threaded segment are both less than the length of the second threaded segment. Part of the second threaded segment is threadedly connected to the middle connecting body.

[0012] As a preferred embodiment of the display panel transfer device, tool slots are provided at the end of the first threaded segment opposite to the second threaded segment and at the end of the third threaded segment opposite to the second threaded segment.

[0013] As a preferred embodiment of the display panel transfer device, the lower support body includes a fourth threaded segment, a fifth threaded segment, and a connector. The fourth threaded segment is threadedly connected to the base, the fifth threaded segment is threadedly connected to the middle connector, and the two ends of the connector are respectively inserted into the fourth threaded segment and the fifth threaded segment. The fracture groove is provided on the connector.

[0014] As a preferred embodiment of the display panel transfer device, the connector includes a flat section and cylindrical sections disposed at both ends of the flat section. The two cylindrical sections are respectively inserted into the fourth threaded section and the fifth threaded section. The thickness direction of the flat section is parallel to the conveying direction of the display panel, and the fracture groove is provided on at least one side of the flat section in the thickness direction.

[0015] As a preferred embodiment of the display panel transfer device, the upper support body includes a T-shaped column and a support ball. The small end of the T-shaped column is threadedly connected to the middle connecting body, and the support ball is disposed at the large end of the T-shaped column. The support ball is used to abut against the display panel.

[0016] As a preferred embodiment of the display panel transfer device, the base includes a substrate, the top surface of which is provided with a plurality of mounting holes for mounting the support column, the bottom surface of which is provided with a limiting block, and the inner wall of the housing is provided with a limiting groove that cooperates with the limiting block, the limiting block being inserted into the limiting groove and slidably connected to the limiting groove.

[0017] As a preferred embodiment of the display panel transfer device, at least two balls are spaced apart at the bottom of the limiting block along the sliding direction of the limiting block, and a positioning groove is provided at the bottom of the limiting groove to engage with the balls.

[0018] Secondly, a display panel coating apparatus is also provided, including a coating chamber, a robotic arm, a conveying device, and a display panel transfer device. The coating chamber is located downstream of the display panel transfer device, the conveying device is located upstream of the display panel transfer device, and the robotic arm is located between the coating chamber and the display panel transfer device. The robotic arm is used to transport the display panel.

[0019] The advantages of this utility model compared to the prior art are:

[0020] This utility model discloses a display panel transfer device. By providing a fracture groove on the lower support body of the support column, and with the lower support body threadedly connected to the middle connecting body, the support column is forced to break at the fracture groove when the display panel collides with it. This reduces the risk of the display panel breaking and lowers the product scrap rate. The split design of the support column, with each fracture point corresponding to a fracture groove, allows the lower support body to be stored and replaced as a consumable part, avoiding the need to replace the entire support column and reducing maintenance costs. Furthermore, by mounting the support column on a base, which is movably mounted on the housing, the base can be pulled out of the housing for easy replacement of the support column. Attached Figure Description

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of a transfer device in the prior art.

[0023] Figure 2 This is a cross-sectional view of the display panel transfer device according to an embodiment of the present utility model.

[0024] Figure 3 This is a top view of the base according to an embodiment of the present utility model.

[0025] Figure 4 This is a cross-sectional view of the support column according to an embodiment of the present utility model.

[0026] Figure 5 This is a schematic diagram of the lower support body according to an embodiment of the present invention.

[0027] Figure 6 This is a schematic diagram of the lower support body according to another embodiment of the present invention.

[0028] Figure 7 This is a schematic diagram of a display panel coating device according to an embodiment of the present invention.

[0029] Figure 1 middle:

[0030] 1′, Housing; 10′, Transfer Chamber; 11′, First Door; 12′, Second Door; 2′, Support Column; 3′, Display Panel.

[0031] Figures 2 to 7 middle:

[0032] 1. Housing; 10. Transfer chamber; 2. Base; 21. Base plate; 22. Mounting hole; 23. Limiting block; 24. Ball bearing; 25. Hollowed-out area; 3. Support column; 31. Upper support body; 311. T-shaped column; 312. Support ball; 32. Lower support body; 321. First threaded section; 322. Second threaded section; 323. Third threaded section; 324. Fracture groove; 325. Tool groove; 326. Connector; 3261. Cylindrical section; 3262. Flat section; 327. Fourth threaded section; 328. Fifth threaded section; 329. Insertion hole; 33. Middle connector; 331. Internal threaded hole; 4. Display panel; 100. Coating chamber; 200. Robotic arm; 300. Conveying device. Detailed Implementation

[0033] The advantages and features of this invention, as well as methods of implementing them, will become apparent from the following detailed description of the embodiments in conjunction with the accompanying drawings. However, this invention is not limited to the embodiments disclosed below, but can be implemented in various different forms. These embodiments are provided merely to complete the disclosure of this invention and to enable those skilled in the art to fully understand its scope, which is defined only by the scope of the claims. The same reference numerals denote the same constituent elements throughout the specification.

[0034] The present invention will now be described in detail with reference to the accompanying drawings.

[0035] like Figure 2 and Figure 4 As shown, this utility model embodiment provides a display panel transfer device (hereinafter referred to as the transfer device), including a housing 1, a base 2, and support columns 3. The housing 1 has a cuboid structure and is used to accommodate the display panel 4. A transfer chamber 10 is provided inside the housing 1, and the display panel 4 is accommodated within the transfer chamber 10. The base 2 is located at the bottom of the transfer chamber 10 and is used to mount the support columns 3. The base 2 is movable within the housing 1 so that when maintaining the support columns 3, the operator can pull the base 2 out of the housing 1. Multiple support columns 3 are arranged in an array on the base 2, and the support columns 3 are used to support the display panel 4. The support columns 3 are long rods and include an upper support body 31, a lower support body 32, and a central connecting body 33. The central connecting body 33 connects the upper support body 31 and the lower support body 32, and its two ends are threadedly connected to the upper support body 31 and the lower support body 32, respectively. The upper support 31 is located at the top of the support column 3, and the end of the upper support 31 facing away from the central connecting body 33 is used to abut against the display panel 4. The lower support 32 is located at the bottom of the support column 33, and the end of the lower support 32 facing away from the central connecting body 33 is detachably connected to the base 2. A fracture groove 324 is provided on the lower support 32, and the fracture strength of the corresponding area of ​​the fracture groove 324 is lower than the fracture strength of other areas in the lower support 32.

[0036] Understandably, by providing a fracture groove 324 on the lower support 32, the cross-section of the area corresponding to the fracture groove 324 is smaller than the cross-section of other areas in the lower support 32, resulting in a relatively low fracture strength in the area corresponding to the fracture groove 324. When the display panel 4 collides with the support column 3 during transportation, the support column 3 will break at the location of the fracture groove 324. The lower support 32 is threadedly connected to the middle connecting body 33, and the lower support 32 is detachably connected to the base 2. When the support column 3 breaks, the lower support 32 can be directly replaced. The two ends of the middle connecting body 33 are threadedly connected to the upper support 31 and the lower support 32, thereby allowing the height of the entire support column 3 to be adjusted to accommodate the placement position of the display panel 4. In this embodiment, by providing a fracture groove 324 on the lower support body 32 of the support column 3, and by threading the lower support body 32 to the middle connecting body 33, when the display panel 4 collides with the support column 3, the support column 3 can be caused to break at the position of the fracture groove 324, thereby reducing the risk of the display panel 4 being broken and reducing the scrap rate of the product. By designing the support column 3 as a separate part, and with the fracture positions of the support column 3 all corresponding to the positions of the fracture groove 324, the lower support body 32 can be stored and replaced as a vulnerable part, avoiding the need to replace the entire support column 3, which helps to reduce maintenance costs. Furthermore, by mounting the support column 3 on the base 2, and the base 2 being movably mounted on the housing 1, the base 2 can be pulled out to the outside of the housing 1 when replacing the support column 3, facilitating the replacement operation.

[0037] Specifically, refer to Figure 4 As shown, the central connecting body 33 has a cylindrical structure, and both ends of the central connecting body 33 are provided with internally threaded holes 331 for connecting with the upper support body 31 and the lower support body 32. The upper support body 31 includes a T-shaped column 311 and a support ball 312. The T-shaped column 311 has a T-shaped cylindrical structure, with one end having a larger diameter and the other end having a smaller diameter. The smaller end of the T-shaped column 311 is provided with an external thread, which is used to thread it into the internally threaded hole 331 on the central connecting body 33. By adjusting the insertion depth of the T-shaped column 311 and the central connecting body 33, the height of the entire support column 3 can be adjusted. The support ball 312 is made of resin and has good wear resistance. The support ball 312 is located at the larger end of the T-shaped column 311. The display panel 4 abuts against the support ball 312. This method helps to reduce the contact area between the display panel 4 and the support column 3, reducing the risk of wear on the display panel 4. Multiple support columns 3 are arrayed on the base 2. In some support columns 3, the support spheres 312 are fixedly connected to the T-shaped columns 311, while in the remaining support columns 3, the support spheres 312 and T-shaped columns 311 are rolled together. This design helps reduce the friction on the entire display panel 4 while ensuring that the display panel 4 can be stably placed on the support columns 3.

[0038] Specifically, refer to Figure 4 and Figure 5 As shown, the lower support body 32 is a long rod-shaped structure with external threads throughout its axial direction. It can also be understood as a screw. Multiple fracture grooves 324 are spaced apart on the lower support body 32, one of which is located between the central connecting body 33 and the base 2. The multiple fracture grooves 324 allow the lower support body 32 to be reused multiple times. In practical applications, one end of the lower support body 32 is connected to the base 2, and the other end is threadedly connected to the central connecting body 33. The portion of the lower support body 32 located within the internal threaded hole 331 of the central connecting body 33 serves as a spare. Only one fracture groove 324 is exposed between the central connecting body 33 and the base 2; in the event of a collision, this fracture groove 324 breaks. Subsequently, the operator can remove the lower support 32 remaining on the base 2, unscrew the lower support 32 hidden inside the central connector 33, and reinstall the end of the lower support 32 away from the central connector 33 onto the base 2. A fracture groove 324 is then moved to the outside of the central connector 33. By providing multiple fracture grooves 324 on the lower support 32, it can be reused multiple times, further reducing maintenance costs.

[0039] In an alternative embodiment, refer to Figure 5As shown, the lower support body 32 has two fracture grooves 324 spaced apart. The two fracture grooves 324 divide the lower support body 32 into three segments, such that the lower support body 32 includes a first threaded segment 321, a second threaded segment 322, and a third threaded segment 323 connected sequentially. The first threaded segment 321 and the third threaded segment 323 are of the same length, and both are shorter than the length of the second threaded segment 322. During installation, a portion of the second threaded segment 322 is threadedly connected to the central connecting body 33. In this structure, only one fracture groove 324 is located outside the central connecting body 33, and the other fracture groove 324 is located inside the central connecting body 33. In the event of a collision, the external fracture groove 324 breaks. Subsequently, the lower support body 32 can be reversed for use. For example, the first threaded segment 321 can be connected to the base 2, and portions of the second threaded segment 322 and the third threaded segment 323 can be connected to the central connecting body 33. After the support column 3 breaks due to impact, the second threaded section 322 and the third threaded section 323 are removed from the central connecting body 33 and turned around for use. Specifically, the third threaded section 323 is installed on the base 2, and the second threaded section 322 is connected to the central connecting body 33. To facilitate the removal of the broken lower support body 32 from the base 2, a tool groove 325 is provided at the end of the first threaded section 321 opposite to the second threaded section 322, allowing operators to use a special tool inserted into the tool groove 325 for rotation. Similarly, a tool groove 325 is also provided at the end of the third threaded section 323 opposite to the second threaded section 322. The tool groove 325 can be a slotted groove or a cross groove.

[0040] In another alternative embodiment, refer to Figure 6 As shown, the lower support body 32 is a split structure, comprising a fourth threaded section 327, a fifth threaded section 328, and a connector 326. The fourth threaded section 327 and the fifth threaded section 328 have the same structure; the fourth threaded section 327 is threadedly connected to the base 2, and the fifth threaded section 328 is threadedly connected to the central connector 33. Both ends of the connector 326 are inserted into the fourth threaded section 327 and the fifth threaded section 328, respectively. A fracture groove 324 is provided on the connector 326. When the support column 3 fractures due to impact, the fracture location is on the connector 326, allowing for direct replacement as a spare part, thus reducing maintenance costs. Furthermore, the connector 326 is fixed by insertion into the fourth threaded section 327 and the fifth threaded section 328, further facilitating maintenance operations.

[0041] The connector 326 includes a flat section 3262 and cylindrical sections 3261 disposed at both ends of the flat section 3262. The cylindrical sections 3261 have a cylindrical structure, and the two cylindrical sections 3261 are respectively inserted into a fourth threaded section 327 and a fifth threaded section 328. Correspondingly, the fourth threaded section 327 and the fifth threaded section 328 are provided with insertion holes 329 that mate with the cylindrical sections 3261. The flat section 3262 has a flat plate structure, and its cross-section is rectangular or elliptical. The thickness direction of the flat section 3262 is parallel to the conveying direction of the display panel 4. A fracture groove 324 is provided on one side of the flat section 3262 in the thickness direction, or fracture grooves 324 are provided on both sides of the flat section 3262 in the thickness direction. By setting the thickness direction of the flat section 3262 to be parallel to the conveying direction of the display panel 4, the flat section 3262 is more likely to break when the display panel 4 collides with the support column 3. Meanwhile, the flat section 3262 is designed as a flat structure, which on the one hand meets the overall support strength requirements of the support column 3, and on the other hand makes it easier to break in the event of a collision.

[0042] Specifically, the cross-section of the fracture groove 324 is V-shaped or trapezoidal, so that when the support column 3 is impacted, stress is easily concentrated in the bottom area of ​​the fracture groove 324, thereby promoting the fracture of the support column 3.

[0043] Specifically, refer to Figure 2 and Figure 3As shown, the base 2 includes a base plate 21 and a limiting block 23. The base plate 21 is flat and has multiple mounting holes 22. The number and position of the mounting holes 22 correspond one-to-one with the support columns 3. The mounting holes 22 are threaded holes, so that the lower support body 32 in the support column 3 can be threadedly connected to the mounting hole 22, thereby realizing a detachable connection between the lower support body 32 and the base 2. The base plate 21 has multiple hollow areas 25, which are square or round holes that are opened through the base plate 21. By setting multiple hollow areas 25, it is beneficial to reduce the overall weight of the base 2, so as to facilitate the operation of the base 2 by the operator during maintenance. The support column 3 is installed on the top surface of the base plate 21, and the limiting block 23 is set on the bottom surface of the base plate 21. The limiting block 23 has a cuboid structure, and the length direction of the limiting block 23 is parallel to the moving direction of the base 2, and the two ends of the limiting block 23 extend to the two end faces of the base plate 21 in the length direction. It can also be understood that the length dimension of the limiting block 23 is the same as that of the base plate 21. Correspondingly, a limiting groove is provided on the inner wall of the housing 1, and the limiting groove is inserted into the limiting block 23. Specifically, the limiting groove is located at the bottom of the transfer chamber 10. In this embodiment, two limiting blocks 23 are provided, and two limiting grooves are correspondingly provided on the housing 1. The two limiting blocks 23 are respectively inserted into the two limiting grooves, and the limiting blocks 23 can slide in the corresponding limiting grooves, so that the base 2 is slidably connected to the housing 1 through the limiting blocks 23. During maintenance, the operator pulls the base 2 and slides it on the housing 1 to pull the base 2 to the outside of the housing 1. Correspondingly, the housing 1 is provided with a first door and a second door, which are located on opposite sides of the housing 1, respectively. The first door and the second door allow the display panel 4 to enter and exit the transfer chamber 10. In order to allow the base 2 to be pulled out of the housing 1, the two ends of the limiting groove in the length direction are respectively facing the first door and the second door, and the limiting groove is connected to the first door or the second door. Of course, the two ends of the limiting groove can be connected to both the first and second doors, so that the base 2 can be pulled out from both sides of the housing 1.

[0044] Along the length of the limiting block 23, two ball bearings 24 are spaced apart at the bottom of the limiting block 23, and the ball bearings 24 are in rolling connection with the limiting block 23. When the base 2 is pulled out, the ball bearings 24 can roll in the limiting groove to reduce friction, thereby facilitating maintenance. The bottom of the limiting groove is provided with two positioning grooves, which correspond one-to-one with the ball bearings 24, and the positioning grooves and ball bearings 24 are inserted into each other. After the base 2 is pushed into the transfer chamber 10, the ball bearings 24 can be inserted into the corresponding positioning grooves to position the installation position of the base 2 and prevent the base 2 from moving between itself and the housing 1 during operation. Of course, in other embodiments, the number of ball bearings 24 on the limiting block 23 can also be set to three, four, or other numbers.

[0045] like Figure 7As shown, this embodiment of the invention also provides a display panel coating device for coating display panels 4. The display panel coating device includes a coating chamber 100, a robotic arm 200, a conveying device 300, and a display panel transfer device. The coating chamber 100 is used to coat the display panels 4, and the coating chamber 100 is in a vacuum state. Multiple coating chambers 100 are arranged in a ring to facilitate simultaneous coating of multiple display panels 4. The coating chamber 100 is located downstream of the display panel transfer device, and the conveying device 300 is located upstream of the display panel transfer device, used to transport the display panels 4. The robotic arm 200 is located between the coating chamber 100 and the display panel transfer device, used to transport the display panels 4. The housing 1 of the display panel transfer device is provided with a first door and a second door. The first door is located on the side of the housing 1 facing the coating chamber 100, and the second door is located on the side of the housing 1 facing the conveying device 300.

[0046] The working principle of the display panel coating equipment is as follows: The display panel 4 is transported from the conveying device 300 into the housing 1. Then, the first and second doors on the housing 1 are closed, and the transfer chamber 10 is evacuated to a vacuum state. The first door is opened, and the robot arm 200 transports the display panel 4 into the coating chamber 100. After coating is completed, the robot arm 200 transports the display panel 4 into the housing 1, then closes the first and second doors on the housing 1, and ventilates the transfer chamber 10 to a normal pressure state. The second door is opened, and the display panel 4 is moved onto the conveying device 300. During the process of the display panel 4 entering and exiting the transfer chamber 10, when the display panel 4 collides with the support column 3 inside the transfer chamber 10, the support column 3 will break at the fracture groove 324, thereby preventing the display panel 4 from being broken and helping to reduce the scrap rate of the product.

[0047] The beneficial effects of this embodiment are as follows: By providing a fracture groove 324 on the lower support body 32 of the support column 3, and by threading the lower support body 32 to the middle connecting body 33, when the display panel 4 collides with the support column 3, the support column 3 can be caused to break at the position of the fracture groove 324, thereby reducing the risk of the display panel 4 being broken and reducing the scrap rate of the product. By designing the support column 3 as a separate part, and with the fracture positions of the support column 3 all corresponding to the positions of the fracture groove 324, the lower support body 32 can be stored and replaced as a vulnerable part, avoiding the need to replace the entire support column 3, which helps to reduce maintenance costs. Furthermore, by installing the support column 3 on the base 2, and the base 2 being movably mounted on the housing 1, the base 2 can be pulled out to the outside of the housing 1 when replacing the support column 3, facilitating the replacement operation.

[0048] Although embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above embodiments, but can be made in various forms, and those skilled in the art will understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential characteristics of the present invention. Therefore, it should be understood that the above embodiments are exemplary in all respects and not restrictive.

Claims

1. A display panel transfer device, characterized in that, include: The housing has a transfer chamber inside for accommodating the display panel; A base, which is movably disposed at the bottom of the transfer chamber; The support column includes an upper support body, a lower support body, and a middle connecting body. The two ends of the middle connecting body are threadedly connected to the upper support body and the lower support body, respectively. The end of the upper support body facing away from the middle connecting body is used to abut against the display panel. The end of the lower support body facing away from the middle connecting body is detachably connected to the base. The lower support body is provided with a fracture groove. The fracture strength of the corresponding area of ​​the fracture groove is lower than the fracture strength of other areas in the lower support body.

2. The display panel transfer device according to claim 1, characterized in that, The lower support body is provided with external threads along its axial direction, and a plurality of fracture grooves are provided at intervals on the lower support body, one of which is located between the middle connecting body and the base.

3. The display panel transfer device according to claim 2, characterized in that, The lower support body is provided with two fracture grooves at intervals. The fracture grooves divide the lower support body into a first threaded segment, a second threaded segment, and a third threaded segment connected in sequence. The lengths of the first threaded segment and the third threaded segment are both less than the length of the second threaded segment. Part of the second threaded segment is threadedly connected to the middle connecting body.

4. The display panel transfer device according to claim 3, characterized in that, Tool grooves are provided at the end of the first threaded segment opposite to the second threaded segment and at the end of the third threaded segment opposite to the second threaded segment.

5. The display panel transfer device according to claim 1, characterized in that, The lower support includes a fourth threaded segment, a fifth threaded segment, and a connector. The fourth threaded segment is threadedly connected to the base, the fifth threaded segment is threadedly connected to the middle connector, and the two ends of the connector are respectively inserted into the fourth threaded segment and the fifth threaded segment. The fracture groove is provided on the connector.

6. The display panel transfer device according to claim 5, characterized in that, The connector includes a flat section and cylindrical sections disposed at both ends of the flat section. The two cylindrical sections are respectively inserted into the fourth threaded section and the fifth threaded section. The thickness direction of the flat section is parallel to the conveying direction of the display panel, and the fracture groove is provided on at least one side of the flat section in the thickness direction.

7. The display panel transfer device according to any one of claims 1 to 6, characterized in that, The upper support includes a T-shaped column and a support ball. The small end of the T-shaped column is threaded to the middle connecting body, and the support ball is disposed at the large end of the T-shaped column. The support ball is used to abut against the display panel.

8. The display panel transfer device according to any one of claims 1 to 6, characterized in that, The base includes a base plate, the top surface of which is provided with a plurality of mounting holes for mounting the support column, the bottom surface of which is provided with a limiting block, and the inner wall of the housing is provided with a limiting groove that cooperates with the limiting block. The limiting block is inserted into the limiting groove and is slidably connected to the limiting groove.

9. The display panel transfer device according to claim 8, characterized in that, Along the sliding direction of the limiting block, at least two balls are spaced apart at the bottom of the limiting block, and a positioning groove is provided at the bottom of the limiting groove to engage with the balls.

10. A display panel coating apparatus, characterized in that, The device includes a coating chamber, a robotic arm, a conveying device, and a display panel transfer device as described in any one of claims 1 to 9. The coating chamber is located downstream of the display panel transfer device, the conveying device is located upstream of the display panel transfer device, and the robotic arm is located between the coating chamber and the display panel transfer device. The robotic arm is used to transport the display panel.

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