Clamping mechanism facilitating repair of display module

Abstract

The utility model relates to the technical field of display module machining devices, in particular to a clamping mechanism facilitating repair of a display module. The clamping mechanism comprises a module carrier used for bearing a display module, a feeding conveying table used for conveying the module carrier to a clamping base and the clamping base used for clamping and fixing the module carrier, the clamping base comprises a temporary storage table and a clamping plate assembly, and during clamping, a first clamping plate, a carrying plate and a second clamping plate in the clamping plate assembly sequentially correspond from top to bottom; the second clamping plate moves towards the first clamping plate, the module carrier is clamped between the first clamping plate and the second clamping plate, clamping and fixing of the module carrier are achieved, the structure is simple, and cost reduction is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to display module processing device technical field especially, it relates to a kind of clamping mechanism facilitating display module rework. BACKGROUND

[0002] At present, the preparation process of LED display module includes: die bonding, rework, dispensing, film packaging, process edge cutting, etc., process edge is mainly used for installation and fixing, positioning and other operations in the processing of LED display module, rework is usually carried out before process edge cutting. However, before the LED display module is assembled or shipped, abnormal conditions such as dead light and dim light of the light-emitting unit may still occur. In this case, since the process edge is cut, rework cannot be performed again through the process edge.

[0003] A kind of LED display module rework method is provided in the prior art, and the application number is 202111155740.9. The method realizes accurate acquisition of the position of abnormal light-emitting unit in the LED display module without using the original positioning mark 102 in the substrate process edge 101, and further realizes removal of the abnormal light-emitting unit or addition of a new light-emitting unit, thereby realizing LED display module rework. However, this method requires the addition of optical detection devices and other hardware equipment, and the improvement of recognition algorithms to position the display module, greatly increasing the rework cost and structural complexity. SUMMARY

[0004] To solve the above technical problems in the prior art, the utility model provides a kind of clamping mechanism facilitating display module rework, which is simple in structure and can reduce rework cost.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A kind of clamping mechanism facilitating display module rework, the display module is the display module after cutting process edge, characterized by, clamping mechanism includes:

[0007] Module carrier, for carrying the display module after cutting, including carrier plate, placement area and positioning mark provided on carrier plate, the placement area is used to place the display module, and the positioning mark is used for positioning and identification of subsequent rework machine;

[0008] Feeding conveyor table, for conveying the module carrier;

[0009] Clamping seat, located at the discharge end of the feeding conveyor table, for clamping and fixing the module carrier, the clamping seat includes buffer table, clamping plate assembly, wherein,

[0010] The buffer station comprises two parallel and spaced second conveyors, a U-shaped support seat, and a second roller assembly, wherein the rollers of the second roller assembly are rotatably installed at the inner side ends of a second support plate in the U-shaped support seat, the second conveyors are arranged around the rollers of the second roller assembly, and the feeding end of the second conveyors corresponds to the discharging end of the feeding conveyor, and is used for buffering the module carriers conveyed by the feeding conveyor.

[0011] The clamp assembly comprises a first clamp, a second clamp corresponding to the first clamp, and a first driving device for driving the second clamp to lift, wherein the second clamp and the first driving device are located between the two second conveyors, the first clamp is fixed to the second support plate and located above the second conveyors, a first through hole is formed in the middle of the first clamp, the first through hole corresponds to the placement area during clamping, and the first clamp, the carrier plate, and the second clamp are arranged in sequence from top to bottom.

[0012] Further features thereof are that,

[0013] Further, the placement area comprises a groove formed in the middle of the carrier plate and a second through hole formed in the middle of the groove, and the shape of the groove matches the shape of the display module.

[0014] Further, the positioning marks comprise at least three, which are respectively located at the edge regions or corner regions of the carrier plate, and a third through hole is formed in the first clamp and corresponds to the corresponding positioning marks.

[0015] Further, the positioning marks are circular grooves.

[0016] Further, the feeding conveyor comprises two parallel and spaced first conveyors, two parallel and spaced first support plates, and two groups of first roller assemblies, wherein the rollers of the first roller assemblies are rotatably installed at the inner side ends of the corresponding first support plates, and the first conveyors are arranged around the rollers of the first roller assemblies.

[0017] Further, the first roller assembly comprises a first driving wheel, a first driven wheel, a fifth driven wheel, a first tensioning wheel, and a second tensioning wheel, wherein the first tensioning wheel and the second tensioning wheel are tensioned at the two ends of a single first conveyor, and the lower part of the single first conveyor is arranged around the first driven wheel, the first driving wheel, the second driven wheel, the third driven wheel, the fourth driven wheel, and the fifth driven wheel.

[0018] Further, the second roller assembly comprises a second driving wheel, a third tensioning wheel, a fourth tensioning wheel, and a sixth driven wheel, wherein the third tensioning wheel and the fourth tensioning wheel are tensioned at the two ends of a single second conveyor, and the lower part of the single second conveyor is arranged around the second driving wheel and the sixth driven wheel in sequence.

[0019] Further, the first clamping plate is a flat plate, and bottom two side edges of the first clamping plate are fixed to top ends of the two second support plates.

[0020] Further, the second clamping plate is a groove-shaped plate, comprising a bottom plate and a pressing plate vertically extended from a periphery of the bottom plate, a bottom end of the bottom plate is fixed to a driving shaft of the first driving device, one end of the pressing plate is fixed to an outer edge of the bottom plate, and the other end corresponds to a bottom end edge of the first clamping plate or a bottom end edge of the carrier plate.

[0021] Further, the clamping mechanism further comprises a limiting assembly, the limiting assembly is located at one side of the clamping seat away from the feeding conveying table, and is used for limiting the module carrier, the limiting assembly comprises a limiting plate and a second driving device for driving the limiting plate to lift and lower, a bottom end of the limiting plate is fixed to a driving shaft of the second driving device, and when the module carrier is conveyed to the buffer table, one side end of the limiting plate corresponds to and abuts against one side end of the carrier plate.

[0022] Further, the clamping mechanism further comprises a transverse moving module and a longitudinal moving module, a moving direction of a first sliding block in the transverse moving module is consistent with a conveying direction of the feeding conveying table and the buffer table, a moving direction of a second sliding block in the longitudinal moving module is perpendicular to the moving direction of the first sliding block, a base of the transverse moving module is installed on the second sliding block, and a bottom of the U-shaped support seat is installed on the first sliding block.

[0023] The above structure of the utility model can achieve the following beneficial effects: when clamping, the module carrier carrying the display module is conveyed to the buffer table of the clamping seat through the feeding conveying table, at this time, the first clamping plate, the carrier plate and the second clamping plate correspond in sequence from top to bottom, the first driving device drives the second clamping plate to move towards the first clamping plate, the module carrier is clamped between the first clamping plate and the second clamping plate, and the clamping and fixing of the module carrier are realized.

[0024] The module carrier is arranged in the clamping mechanism, the module carrier is provided with a placing area and a positioning mark, the placing area is used for placing the display module, and the positioning mark is used for subsequent positioning and identification of the repair machine, therefore, the module carrier as a temporary process side of the display module can meet the positioning requirement of the display module, the optical detection device and the identification algorithm do not need to be increased, the structure is simple, and the repair cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0026] Figure 2 It is a three-dimensional structure schematic view of the module carrier of the utility model;

[0027] Figure 3 It is the three-dimensional structure schematic view of the clamping seat, horizontal moving module and longitudinal moving module of the utility model (omit the first clamping plate);

[0028] Figure 4 It is the three-dimensional structure schematic view of the feeding conveying table of the utility model;

[0029] Figure 5 It is the three-dimensional structure schematic view of the buffer table, horizontal moving module and longitudinal moving module of the utility model;

[0030] Figure 6 It is the overhead structure schematic view of the cutting process edge front display module;

[0031] Figure 7 It is the overhead structure schematic view of the cutting process edge rear display module;

[0032] Figure 8 It is Figure 7 It is the cross-sectional structure schematic view of A-A direction.

[0033] Reference signs: substrate 1, light emitting unit 2, driving unit 3, module carrier 4, feeding conveying table 5, clamping seat 6, horizontal moving module 7, longitudinal moving module 8, display module 10, process edge 101, original positioning mark 102;

[0034] Carrier plate 401, placement area 402, positioning mark 403;

[0035] First conveying belt 501, first support plate 502, first roller assembly 503;

[0036] First driving wheel 5031, first driven wheel 5032, second driven wheel 5033, third driven wheel 5034, fourth driven wheel 5035, fifth driven wheel 5036, first tension wheel 5037, second tension wheel 5038;

[0037] Second conveying belt 601, U-shaped support seat 602, second roller assembly 603, first clamping plate 604, second clamping plate 605, first air cylinder 606, limiting assembly 607;

[0038] Second driving wheel 6031, third tension wheel 6032, fourth tension wheel 6033, sixth driven wheel 6034;

[0039] First through hole 6041, third through hole 6042;

[0040] Limiting plate 6071, second air cylinder 6072. DETAILED DESCRIPTION

[0041] In order for the person skilled in the art to better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0042] It should be noted that the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above drawings are intended to cover non-exclusive inclusion, for example, a process, method, device, product or equipment including a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or equipment.

[0043] In view of the technical problem in the prior art that the original positioning mark 102 (reference Figure 6 ) is cut at the same time after cutting the process edge 101 of the display module, which is not convenient for display module positioning during repair, the following provides a clamping mechanism for facilitating display module repair, which is used for clamping the display module after cutting the process edge, referring to Figure 7 , Figure 8 , the display module after cutting the process edge mainly includes a substrate 1, a light emitting unit 2 arranged in an array on the front surface of the substrate, and a driving unit 3 arranged on the back surface of the substrate. The light emitting unit 2 includes three Micro / mini LED chips, which are red LED chips, green LED chips and blue LED chips. The red LED chips, green LED chips and blue LED chips mix light colors to make the light emitting unit 2 emit white light. The driving unit 3 includes driving IC, capacitor, resistor and other electronic elements.

[0044] Referring to Figures 1-5 , the clamping mechanism includes a module carrier 4, a feeding conveying table 5 and a clamping seat 6. The module carrier 4 is used to carry the cut display module, and the specific structure includes a carrier plate 401, a placement area 402 and a positioning mark 403.

[0045] The placement area 402 includes a groove opened in the middle of the carrier plate and a second through hole opened in the middle of the groove. The shape of the groove matches the shape of the display module 10 after cutting the process edge, and is used to place the display module 10. In the present embodiment, the maximum length of the second through hole is less than the maximum length of the display module 10, so as to prevent the display module from falling off from the second through hole. The driving unit 3 usually protrudes from the surface of the substrate 1, therefore, the setting of the second through hole forms an avoiding area of the driving unit 3, which facilitates the carrying of the display module 10.

[0046] The positioning marks 403 are used for positioning and identification of the subsequent repair machine. In the embodiment, the positioning marks 403 include four, which are respectively located in the corner regions of the carrier plate 401. The four positioning marks 403 are circular grooves. The material of the carrier plate 401 is stainless steel, which is usually silver. In order to facilitate the identification of the positioning marks 403, black ink or a black adhesive layer is coated in the circular grooves.

[0047] In order to facilitate the transmission of the module carrier 4, referring to Figure 4 , the feeding conveying table 5 is provided with the following structure: two first conveying belts 501 which are arranged in parallel and at intervals, two first support plates 502 which are arranged in parallel and at intervals, and two groups of first roller assemblies 503. The rollers of the first roller assemblies 503 are rotatably installed at the inner side ends of the corresponding first support plates 502. The first conveying belts 501 are wound around the rollers of the first roller assemblies 503. In the embodiment, the first roller assemblies 503 include a first driving wheel 5031, a first driven wheel 5032, a fifth driven wheel 5036, a first tension wheel 5037, and a second tension wheel 5038. The first tension wheel 5037 and the second tension wheel 5038 are tensioned at the two ends of the single first conveying belt 501. The lower part of the single first conveying belt 501 is wound around the first driven wheel 5032, the first driving wheel 5031, a second driven wheel 5033, a third driven wheel 5034, a fourth driven wheel 5035, and the fifth driven wheel 5036.

[0048] In the embodiment, the clamping seat 6 is located at the discharge end of the feeding conveying table 5, and is used for clamping and fixing the module carrier 10. The specific structure includes a buffer table and a clamping plate assembly.

[0049] Referring to Figure 5 , the buffer table includes two second conveying belts 601 which are arranged in parallel and at intervals, a U-shaped support seat 602, and a second roller assembly 603. The rollers in the second roller assembly 603 are rotatably installed at the inner side ends of the second support plates in the U-shaped support seat. The second conveying belts 601 are wound around the rollers of the second roller assembly 603. The feeding end of the second conveying belts 601 corresponds to the discharge end of the feeding conveying table 5, and is used for buffering the module carriers transmitted by the feeding conveying table 5. In the embodiment, the second roller assembly 603 includes a second driving wheel 6031, a third tension wheel 6032, a fourth tension wheel 6033, and a sixth driven wheel 6034. The third tension wheel 6032 and the fourth tension wheel 6033 are tensioned at the two ends of the single second conveying belt 601. The lower part of the single second conveying belt 601 is sequentially wound around the second driving wheel 6031 and the sixth driven wheel 6034.

[0050] The clamping plate assembly includes a first clamping plate 604, a second clamping plate 605 corresponding to the first clamping plate 604, and a first driving device for driving the second clamping plate 605 to ascend and descend. The first driving device is a first air cylinder 606.

[0051] The first clamping plate 604 is a flat plate, a first through hole 6041 is formed in the middle part, a third through hole 6042 is formed in the edge, the first clamping plate 604 is located above the second conveying belt 601, the bottom two side edges are fixed to the top ends of the two second supporting plates, when clamping, the first through hole 6041 corresponds to the placement area 402 (when the display module 10 is placed in the placement area 402, the first through hole 6041 corresponds to the face to be repaired of the display module 10 in the placement area), and the third through hole 6042 corresponds to the corresponding positioning mark 403. The first through hole 6041 is arranged to facilitate the subsequent repair machine to repair the light emitting unit on the front face of the display module. The third through hole 6042 is arranged to facilitate the subsequent repair machine to identify the positioning mark 403 on the display module.

[0052] The second clamping plate 605 is a groove type plate, which comprises a bottom plate and a pressing plate vertically extended from the periphery of the bottom plate. The bottom end of the bottom plate is fixed to the piston rod of the first air cylinder 606. One end of the pressing plate is vertically fixed to the outer edge of the bottom plate. Before clamping, the other end of the pressing plate corresponds to the bottom end edge of the first clamping plate 604. During clamping, the other end of the pressing plate corresponds to the bottom end edge of the carrier plate 401. The second clamping plate 605 and the first air cylinder 606 are located between the two second conveying belts 601. The edges of the first clamping plate 604, the carrier plate and the second clamping plate 605 are sequentially arranged from top to bottom.

[0053] To prevent the module carrier from moving out of position and ensure that the module carrier can accurately correspond to the first clamping plate 604 above and the second clamping plate 605 below, a limiting assembly 607 and a first photoelectric sensor (not shown in the figure) are further arranged in the embodiment. The limiting assembly 607 is located on the side of the clamping seat 6 away from the feeding conveying table 5, and is used for limiting the module carrier 10. The limiting assembly comprises a limiting plate 6071 and a second air cylinder 6072 (i.e. a second driving device) for driving the limiting plate 6071 to lift and lower. The bottom end of the limiting plate 6071 is fixed to the piston rod of the second air cylinder 6072. When the module carrier 10 is transported to the buffer table, one side end of the limiting plate 6071 corresponds to and abuts against one side end of the carrier plate 401, thereby limiting the module carrier 4.

[0054] To facilitate the movement of the module carrier 10 and the display module 10 to different stations in the repair machine, the clamping mechanism of the embodiment further comprises a horizontal moving module 7 and a vertical moving module 8. The moving direction of the first slider in the horizontal moving module 7 is consistent with the transport direction of the feeding conveying table 5 and the buffer table. The moving direction of the second slider in the vertical moving module 8 is perpendicular to the moving direction of the first slider. The base of the horizontal moving module 7 is installed on the second slider, and the bottom of the U-shaped supporting seat 602 is installed on the first slider.

[0055] In the embodiment, the controller, a second photoelectric sensor (not shown in the figure) are further included, the first photoelectric sensor is installed at the discharging end of the feeding conveyor table and is used to sense the transverse movement of the module carrier, the first photoelectric sensor, the first cylinder, the second cylinder, the first motor in the transverse movement module, the second motor in the longitudinal movement module, and the second photoelectric sensor arranged adjacent to the first clamping plate are electrically connected with the controller.

[0056] The repair step includes: S1, placing the display module 10 with cut process edges in the recess of the placement area 402 of the module carrier 4;

[0057] S2, transmitting the module carrier 4 carrying the display module 10 to the buffer table of the clamping seat 6 through the feeding conveyor table 5, and the specific steps include: when the first conveyor belt 501 drives the module carrier 4 to move to the buffer table, the first photoelectric sensor triggers and sends a signal to the controller, the controller controls the second cylinder 6072 to start, and the second cylinder 6072 drives the limiting plate 6071 to lift and limit the module carrier 4;

[0058] S3, the controller controls the second cylinder 6072 to start, the second cylinder 6072 drives the second clamping plate 605 to rise, the top end of the pressing plate in the second clamping plate 605 abuts against the bottom end edge of the carrier plate 401, and the carrier plate 401 and the display module 10 are pushed to move to the first clamping plate 604, so that the module carrier 4 is clamped between the first clamping plate 604 and the second clamping plate 605, thereby realizing the clamping and fixing of the module carrier 4. The fixing operation is simple and fast, and facilitates the subsequent repair of the repair machine.

[0059] In step S3, after the module carrier 4 is clamped between the first clamping plate 604 and the second clamping plate 605, the second photoelectric sensor triggers and sends a signal to the controller, the controller controls the first motor or the second motor to start, and the module carrier 4 and the display module 10 are transmitted to the repair station of the repair machine through the transverse movement module 7 or the longitudinal movement module 8.

[0060] It can be understood that the above specific description of the present application is only used to illustrate the present application and is not limited to the technical solutions described in the embodiments of the present application. Those skilled in the art should understand that the present application can still be modified or replaced equivalently to achieve the same technical effect; as long as the use needs are met, it is within the protection scope of the present application.

Claims

1. A clamping mechanism for facilitating display module repair, the display module being a display module (10) after a cutting process, characterized in that, The clamping mechanism comprises: A module carrier (4) for carrying a cut display module (10) comprises a carrier plate (401), a placement area (402) and a positioning mark (403) provided on the carrier plate (401), the placement area (402) is used for placing the display module (10), and the positioning mark (403) is used for subsequent positioning and identification of a repair machine; A feeding conveying table (5) is used for conveying the module carrier (4); A clamping seat (6) is located at the discharge end of the feeding conveying table (5) and is used for clamping and fixing the module carrier (4), and the clamping seat (6) comprises a buffer table and a clamping plate assembly, wherein The buffer table comprises two second conveying belts (601) arranged in parallel and at intervals, a U-shaped support seat (602) and a second roller assembly (603), The rollers in the second roller assembly (603) are rotatably installed on the inner side end of a second support plate in the U-shaped support seat (602), the second conveying belt (601) is wound around the rollers of the second roller assembly (603), and the feeding end of the second conveying belt (601) corresponds to the discharge end of the feeding conveying table (5) and is used for buffering the module carrier (4) conveyed by the feeding conveying table (5); The clamping plate assembly comprises a first clamping plate (604), a second clamping plate (605) corresponding to the first clamping plate (604), a first driving device for driving the second clamping plate (605) to ascend and descend, the second clamping plate (605) and the first driving device are located between the two second conveying belts (601), the first clamping plate (604) is fixed to the second support plate and located above the second conveying belt (601), a first through hole (6041) is formed in the middle part of the first clamping plate (604), the first through hole (6041) corresponds to the placement area (402) during clamping, and the first clamping plate (604), the carrier plate (401) and the second clamping plate (605) are sequentially arranged from top to bottom.

2. The clamping mechanism for facilitating display module repair-in-place of claim 1, wherein, The placement area (402) comprises a groove formed in the middle part of the carrier plate (401) and a second through hole formed in the middle part of the groove, and the shape of the groove matches the shape of the display module (10).

3. The clamping mechanism for facilitating display module repair-in-place of claim 1 or 2, wherein, The positioning mark (403) comprises at least three positioning marks respectively located at the edge region or the corner region of the carrier plate (401), a third through hole (6042) is formed in the first clamping plate (604), and the third through hole (6042) corresponds to the corresponding positioning mark (403).

4. The clamping mechanism for facilitating display module repair-in-place of claim 1, wherein, The feeding conveying table (5) comprises two first conveying belts (501) arranged in parallel and at intervals, two first support plates (502) arranged in parallel and at intervals, and two groups of first roller assemblies (503), the rollers of the first roller assemblies (503) are rotatably installed on the inner side end of the corresponding first support plates (502), and the first conveying belts (501) are wound around the rollers of the first roller assemblies.

5. The clamping mechanism for facilitating display module repair-in-place of claim 4, wherein, The first roller assembly (503) comprises a first driving wheel (5031), a first driven wheel (5032), a fifth driven wheel (5036), a first tensioning wheel (5037) and a second tensioning wheel (5038). The first tensioning wheel (5037) and the second tensioning wheel (5038) are tensioned at two ends of the single first conveying belt (501), and the lower part of the single first conveying belt (501) is sequentially arranged around the first driven wheel (5032), the first driving wheel (5031), the second driven wheel (5033), the third driven wheel (5034), the fourth driven wheel (5035) and the fifth driven wheel (5036).

6. The clamping mechanism for facilitating display module repair-in-place of claim 1, wherein, The second roller assembly (603) comprises a second driving wheel (6031), a third tensioning wheel (6032), a fourth tensioning wheel (6033) and a sixth driven wheel (6034). The third tensioning wheel (6032) and the fourth tensioning wheel (6033) are tensioned at two ends of the single second conveying belt (601), and the lower part of the single second conveying belt (601) is sequentially arranged around the second driving wheel (6031) and the sixth driven wheel (6034).

7. The clamping mechanism for facilitating display module repair-in-place of claim 1, wherein, The first clamping plate (604) is a planar plate, and the bottom two side edges of the first clamping plate (604) are fixed to the top ends of the two second support plates.

8. The clamping mechanism for facilitating display module repair-in-place of claim 1 or 7, wherein, The second clamping plate (605) is a groove-shaped plate, comprising a bottom plate and a pressing plate vertically extending from the periphery of the bottom plate. The bottom end of the bottom plate is fixedly connected to the driving shaft of the first driving device, and one end of the pressing plate is fixedly connected to the outer edge of the bottom plate, and the other end corresponds to the bottom end edge of the first clamping plate (604) or the bottom end edge of the carrier plate (401).

9. The clamping mechanism for facilitating display module repair-in-place of claim 1, wherein, The clamping mechanism further comprises a limiting assembly (607) located on the side of the clamping seat away from the feeding conveying table (5) and used for limiting the mold group carrier (4). The limiting assembly (607) comprises a limiting plate (6071) and a second driving device for driving the limiting plate (6071) to move up and down. The bottom end of the limiting plate (6071) is fixedly connected to the driving shaft of the second driving device. When the mold group carrier (4) is transported to the buffer table, one side end of the limiting plate (6071) abuts against one side end of the carrier plate (401).

10. The clamping mechanism for facilitating display module repair-in-place of claim 1, wherein, The clamping mechanism further comprises a horizontal moving module (7) and a vertical moving module (8). The moving direction of the first sliding block in the horizontal moving module (7) is consistent with the transport direction of the feeding conveying table (5) and the buffer table. The moving direction of the second sliding block in the vertical moving module (8) is perpendicular to the moving direction of the first sliding block. The base of the horizontal moving module (7) is installed on the second sliding block, and the bottom of the U-shaped support seat (602) is installed on the first sliding block.

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