Pressurizing jig for preventing lower brightness enhancement film from shifting

Abstract

The utility model provides a pressurizing jig capable of preventing a lower brightness enhancement film from shifting, which comprises a connecting seat, two through grooves are symmetrically arranged on two sides of the connecting seat, a fixing rod is fixedly connected to the inner wall of each through groove, a sucker component is arranged on one side of each fixing rod, a dustproof plate is slidably arranged in the connecting seat, and the dustproof plate is fixedly connected with the connecting seat. A positioning block is arranged at the top of the connecting base, a fixing bolt is arranged in the positioning block, and an ejector pin is arranged at the bottom of the positioning block. The pressurizing jig capable of preventing the lower brightness enhancement film from shifting solves the problems that when an existing device is actually used, a large gap is formed between a connecting base and the lower brightness enhancement film, the connecting base is prone to shifting in the downward pressing process, and when a plurality of suction cups need to be separated from the lower brightness enhancement film manually after use, operation is inconvenient, and the working efficiency is high. And if the force is too large, the lower brightness enhancement film is possibly separated from the double-faced adhesive tape, and the use effect is not good.

Description

Technical Field

[0001] The utility model relates to the technical field of backlight source processing, in particular to a pressurizing fixture for preventing a lower brightness enhancement sheet from shifting. Background Art

[0002] There are many film materials in the backlight module, such as the upper brightening sheet and the lower brightening sheet. The lower brightening sheet is provided with a boss. During the assembly of the backlight source, there is a process of bonding the boss on the lower brightening sheet with the FPC double-sided tape. However, in the existing processing and production, the boss and the FPC double-sided tape are not firmly attached, and the lower brightening sheet may shift during the attachment process, resulting in uneven attachment.

[0003] A pressurized fixture for preventing the lower brightness enhancement sheet from shifting is disclosed in the patent document with publication number CN219544099U, including a connecting seat, a plurality of cavities are provided at the bottom of the connecting seat, a buffer mechanism is provided in the cavity, a suction cup is provided at the bottom of the buffer mechanism, connecting blocks are provided at both left and right ends of the rear side of the connecting seat, a protective mechanism is provided between the two connecting blocks, a plurality of positioning blocks are provided on the upper left side of the connecting seat, a top seat is provided at the bottom of the positioning block, a top pin is provided at the bottom of the top seat, the buffer mechanism includes a spring and a connecting rod, the spring is installed in the cavity, and the connecting rod is installed at the bottom of the spring. In the process of implementing this technical solution, the inventor found that there are at least the following problems in the prior art:

[0004] When the above device is actually used, the connecting seat is adsorbed on the lower brightness enhancement sheet through the suction cup, but the connecting seat and the lower brightness enhancement sheet are not in direct contact. There is a large gap between the connecting seat and the lower brightness enhancement sheet. The connecting seat is prone to displacement during the downward pressing process, and after use, it is necessary to manually separate the multiple suction cups from the lower brightness enhancement sheet. Not only is the operation inconvenient, but if too much force is used, the lower brightness enhancement sheet may be separated from the double-sided tape, resulting in poor use effect.

[0005] It should be noted that the information disclosed in this background technology section is only intended to increase the understanding of the overall background of the utility model, and should not be regarded as an admission or suggestion in any form that the information constitutes prior art already known to a person skilled in the art. Therefore, the above content belongs to the technical cognition of the inventor and does not necessarily constitute prior art. Utility Model Content

[0006] In view of this, the purpose of the present invention is to provide a pressurizing fixture for preventing the lower brightness enhancement sheet from shifting, so as to solve the problems raised in the above-mentioned background technology.

[0007] The utility model provides a pressurized jig for preventing the lower brightness enhancement sheet from shifting, comprising a connecting seat, two through grooves symmetrically provided on both sides of the connecting seat, and a fixing rod fixedly connected to the inner wall of the through groove, a suction cup assembly is provided on one side of the fixing rod, a dustproof plate is slidably provided in the connecting seat, the dustproof plate is located below the suction cup assembly, a positioning block is provided on the top of the connecting seat, a fixing bolt is provided inside the positioning block, and a ejector pin is provided at the bottom of the positioning block.

[0008] Preferably, the suction cup assembly includes a box body arranged on one side of the fixed rod, a connecting pipe is arranged at the bottom of the box body, the bottom of the connecting pipe is connected to the suction cup, a screw rod is threaded on the inner wall of the box body, the bottom of the screw rod is connected to a lifting plate through a bearing, the bottom of the lifting plate is fixedly connected to a lifting column, the bottom of the lifting column is provided with a piston head, and the bottom of the connecting pipe is provided with a groove used in conjunction with the piston head.

[0009] Preferably, both sides of the lifting plate are fixedly connected with sliding blocks, and the inner wall of the box body is provided with sliding grooves used in conjunction with the sliding blocks.

[0010] Preferably, a sealing ring is provided on the top of the piston head, and a sealing groove used in conjunction with the sealing ring is provided on the inner wall of the connecting pipe.

[0011] Preferably, a sealing cavity used in conjunction with the suction cup is opened on the top of the dustproof plate, so that the dustproof plate can be slidably mounted on the outside of the suction cup.

[0012] Preferably, clamping blocks are fixedly connected to both sides of the top of the dustproof plate, and a first clamping groove for use with the clamping block is provided at the bottom of the connecting seat.

[0013] Preferably, a placement groove is provided at the bottom of the connecting seat, and a second slot is connected to the top of the placement groove to enable the dustproof plate to be inserted into the placement groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The pressurizing fixture for preventing the lower brightness enhancement sheet from shifting places the connecting seat on the top of the lower brightness enhancement sheet so that the connecting seat and the bottom of the suction cup are in contact with the lower brightness enhancement sheet, and the lifting plate is driven up by rotating the screw rod in the box body, and the lifting plate drives the lifting column to move up, so that the piston head moves up in the connecting tube, and the air in the suction cup is sucked into the connecting tube, so that negative pressure is formed in the suction cup, which is adsorbed on the lower brightness enhancement sheet to fix the connecting seat. After the processing is completed, the screw rod is rotated in the opposite direction to move the piston head down to discharge the air into the suction cup, thereby quickly desorbing the suction cup.

[0016] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or understood by practicing the present application. The purpose and other advantages of the present application can be realized and obtained by the structures particularly pointed out in the written description and the drawings.

[0017] The technical solution of the present application is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic structural diagram of a preferred embodiment of a pressurizing fixture for preventing the lower brightness enhancement sheet from shifting provided by the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the suction cup assembly shown in the utility model;

[0021] Figure 3 It is a structural schematic diagram of the dustproof plate shown in the utility model.

[0022] Numbers in the figure: 1. Connecting seat; 2. Fixing rod; 3. Suction cup assembly; 31. Box body; 32. Connecting pipe; 33. Suction cup; 34. Screw rod; 35. Lifting plate; 36. Lifting column; 37. Piston head; 38. Groove; 4. Dustproof plate; 5. Positioning block; 6. Fixing bolt; 7. Ejector pin; 8. Slider; 9. Slide groove; 10. Sealing ring; 11. Sealing groove; 12. Sealing chamber; 13. Block; 14. First slot; 15. Placement slot; 16. Second slot. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0026] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] Please refer to Figure 1-Figure 3 A pressurizing fixture for preventing a lower brightness enhancement sheet from shifting comprises a connecting seat 1.

[0028] In the specific implementation process, Figure 1 , Figure 2 and Figure 3 As shown, two through grooves are symmetrically provided on both sides of the connecting seat 1, and a fixing rod 2 is fixedly connected to the inner wall of the through groove, a suction cup assembly 3 is arranged on one side of the fixing rod 2, a dustproof plate 4 is slidingly arranged inside the connecting seat 1, and the dustproof plate 4 is located below the suction cup assembly 3, a positioning block 5 is arranged on the top of the connecting seat 1, a fixing bolt 6 is arranged inside the positioning block 5, and a ejector pin 7 is arranged at the bottom of the positioning block 5.

[0029] The suction cup assembly 3 includes a box body 31 arranged on one side of the fixed rod 2, a connecting pipe 32 is arranged at the bottom of the box body 31, a suction cup 33 is connected to the bottom of the connecting pipe 32, a screw rod 34 is screwed on the inner wall of the box body 31, a lifting plate 35 is connected to the bottom of the screw rod 34 through a bearing, a lifting column 36 is fixedly connected to the bottom of the lifting plate 35, a piston head 37 is arranged at the bottom of the lifting column 36, a groove 38 used in conjunction with the piston head 37 is arranged at the bottom of the connecting pipe 32, when the piston head 37 moves down to the bottom of the connecting pipe 32, the piston head 37 fits with the groove 38, and the bottom of the connecting pipe 32 is sealed to prevent dust and debris from entering the connecting pipe 32.

[0030] Slide blocks 8 are fixedly connected to both sides of the lifting plate 35, and a slide groove 9 for use with the slide block 8 is provided on the inner wall of the box body 31. When the lifting plate 35 moves, the slide block 8 moves in the slide groove 9 to guide and limit the lifting plate 35, thereby improving the stability of the lifting plate 35 when moving.

[0031] A sealing ring 10 is provided on the top of the piston head 37, and a sealing groove 11 used in conjunction with the sealing ring 10 is opened on the inner wall of the connecting tube 32. When the piston head 37 moves up to the top of the connecting tube 32, the sealing ring 10 enters the sealing groove 11 to seal the top of the connecting tube 32 to prevent air leakage from affecting the adsorption effect of the suction cup 33.

[0032] It should be noted that: first, the lower brightness enhancement sheet is pre-bonded with the FPC double-sided adhesive tape, but not completely bonded, and is a semi-finished product. The connecting seat 1 is placed on the top of the lower brightness enhancement sheet, so that the connecting seat 1 and the bottom of the suction cup 33 are in contact with the lower brightness enhancement sheet. At the same time, the ejector pin 7 at the bottom of the positioning block 5 is aligned with the boss on the lower brightness enhancement sheet and the FPC double-sided adhesive tape. The position of the positioning block 5 can be adjusted by screwing the fixing bolt 6. The lifting plate 35 is driven to rise by rotating the screw rod 34 in the box body 31, and the lifting plate 35 drives the lifting column 36 to rise, so that the piston head 37 is in the connecting pipe 3 2, the air in the suction cup 33 is sucked into the connecting pipe 32, so that negative pressure is formed in the suction cup 33, which is adsorbed on the lower brightness enhancement sheet to fix the connecting seat 1, and then the whole fixture is pressed downward, and the boss on the lower brightness enhancement sheet can be pressurized by the ejector pin 7, so that the lower brightness enhancement sheet and the FPC double-sided adhesive are more firmly attached, and at the same time, the lower brightness enhancement sheet is not easy to shift when the product is processed. After the processing is completed, the screw rod 34 is rotated in the opposite direction to move the piston head 37 downward to discharge the air into the suction cup 33, so as to quickly desorb the suction cup 33.

[0033] A sealing cavity 12 is formed on the top of the dustproof plate 4 and is used in conjunction with the suction cup 33 , so that the dustproof plate 4 can be slidably sleeved on the outside of the suction cup 33 .

[0034] Blocks 13 are fixedly connected to both sides of the top of the dustproof plate 4 , and a first clamping groove 14 for use with the block 13 is provided at the bottom of the connecting seat 1 .

[0035] A placement groove 15 is provided at the bottom of the connecting seat 1 , and a second clamping groove 16 is connected to the top of the placement groove 15 so that the dustproof plate 4 can be inserted into the placement groove 15 .

[0036] It should be noted that: when the device is in use, the dustproof plate 4 and the block 13 on its top can be inserted into the placement groove 15 and the second slot 16. After insertion, the bottom of the dustproof plate 4 and the bottom of the connecting seat 1 are on the same horizontal line, which does not affect normal use and has the effect of storing the dustproof plate 4. When the device is not in use, the dustproof plate 4 is taken out from the placement groove 15, and the block 13 is inserted into the first slot 14. During insertion, the bottom of the suction cup 33 enters the sealed cavity 12 at the top of the dustproof plate 4 to prevent dust from entering the suction cup 33.

[0037] The working principle of the pressurizing fixture for preventing the lower brightness enhancement sheet from shifting provided by the utility model is as follows:

[0038] When in use, first pre-bond the lower brightness enhancement sheet with the FPC double-sided adhesive tape, but not completely bonded, it is a semi-finished product. Place the connecting seat 1 on the top of the lower brightness enhancement sheet, so that the connecting seat 1 and the bottom of the suction cup 33 are in contact with the lower brightness enhancement sheet. At the same time, the ejector pin 7 at the bottom of the positioning block 5 is aligned with the boss on the lower brightness enhancement sheet and the FPC double-sided adhesive tape. The position of the positioning block 5 can be adjusted by screwing the fixing bolt 6. The lifting plate 35 is driven to rise by rotating the screw rod 34 in the box body 31, and the lifting plate 35 drives the lifting column 36 to rise, so that the piston head 37 is in the connecting tube 32. The suction cup 33 is moved upward, and the air in the suction cup 33 is sucked into the connecting tube 32, so that negative pressure is formed in the suction cup 33, which is adsorbed on the lower brightness enhancement sheet to fix the connecting seat 1. Then the whole fixture is pressed downward, and the boss on the lower brightness enhancement sheet can be pressurized through the ejector pin 7, so that the lower brightness enhancement sheet and the FPC double-sided adhesive are more firmly attached, and at the same time, the lower brightness enhancement sheet is not easy to shift when the product is continued to be processed. After the processing is completed, the screw rod 34 is rotated in the opposite direction to move the piston head 37 downward to discharge the air into the suction cup 33, thereby quickly desorbing the suction cup 33.

[0039] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A pressurizing fixture for preventing the lower brightness enhancement sheet from shifting, characterized in that: The invention comprises a connecting seat (1), two through grooves are symmetrically provided on both sides of the connecting seat (1), and a fixing rod (2) is fixedly connected to the inner wall of the through groove, a suction cup assembly (3) is arranged on one side of the fixing rod (2), a dustproof plate (4) is slidably arranged inside the connecting seat (1), and the dustproof plate (4) is located below the suction cup assembly (3), a positioning block (5) is arranged on the top of the connecting seat (1), a fixing bolt (6) is arranged inside the positioning block (5), and a top pin (7) is arranged at the bottom of the positioning block (5).

2. The pressurizing fixture for preventing the bottom brightness enhancement sheet from shifting according to claim 1, characterized in that: The suction cup assembly (3) comprises a box body (31) arranged on one side of the fixing rod (2); a connecting pipe (32) is arranged at the bottom of the box body (31); the bottom of the connecting pipe (32) is connected to a suction cup (33); a screw rod (34) is screwed on the inner wall of the box body (31); the bottom of the screw rod (34) is connected to a lifting plate (35) via a bearing; the bottom of the lifting plate (35) is fixedly connected to a lifting column (36); the bottom of the lifting column (36) is provided with a piston head (37); and the bottom of the connecting pipe (32) is provided with a groove (38) used in conjunction with the piston head (37).

3. The pressurizing fixture for preventing the bottom brightness enhancement sheet from shifting according to claim 2, characterized in that: Slide blocks (8) are fixedly connected to both sides of the lifting plate (35), and a sliding groove (9) for use with the slide blocks (8) is provided on the inner wall of the box body (31).

4. The pressurizing fixture for preventing the bottom brightness enhancement sheet from shifting according to claim 2, characterized in that: A sealing ring (10) is arranged on the top of the piston head (37), and a sealing groove (11) for use with the sealing ring (10) is provided on the inner wall of the connecting pipe (32).

5. The pressurizing fixture for preventing the bottom brightness enhancement sheet from shifting according to claim 2, characterized in that: The top of the dustproof plate (4) is provided with a sealing cavity (12) used in conjunction with the suction cup (33), so that the dustproof plate (4) can be slidably sleeved on the outside of the suction cup (33).

6. The pressurizing fixture for preventing the bottom brightness enhancement sheet from shifting according to claim 1, characterized in that: Both sides of the top of the dustproof plate (4) are fixedly connected with clamping blocks (13), and the bottom of the connecting seat (1) is provided with a first clamping groove (14) for use with the clamping block (13).

7. The pressurizing fixture for preventing the bottom brightness enhancement sheet from shifting according to claim 1, characterized in that: The bottom of the connection seat (1) is provided with a placement groove (15), and the top of the placement groove (15) is connected to a second clamping groove (16) so that the dustproof plate (4) can be inserted into the placement groove (15).

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