A pre-pressing bonding device

Abstract

The present invention provides a pre-stressing bonding device, comprising a support, wherein the support comprises a first installation area, a second installation area, a first hollow area, a second hollow area, and a back support area; the first installation area is provided with a pre-stressing head unit, the second installation area is provided with a pre-stressing pressing table unit, the pre-stressing head unit and the pre-stressing pressing table unit are in the same vertical direction; the first hollow area is connected to a transmission unit that transmits an FPC to the pre-stressing head unit; the second hollow area is provided with a correction unit that can photograph the FPC and align the substrate; the back support area is provided with a transfer unit that adsorbs the FPC and places the transfer unit, the correction unit is arranged below the transfer unit, and the transfer unit is arranged above the transfer unit; integrated installation is achieved, and bonding accuracy and production efficiency are improved; through reasonable layout of the transfer unit, the correction unit, and the transfer unit, and the use of the pre-stressing head unit and the pre-stressing pressing table unit, the structure is compact, and space and cost are saved.

Description

Technical Field

[0001] The present application relates to the technical field of FOG bonding, and in particular to a pre-compression bonding device. Background Art

[0002] LCM (Liquid Display Module) is a component that assembles liquid crystal display screen, drive circuit, FPC (Flexible Printed Circuit), backlight and other structural parts together. The mechanical connection and electrical conduction between liquid crystal glass, drive circuit and FPC in the liquid crystal display screen are the core parts of LCM production. The production process of liquid crystal glass and FPC is FOG (Film On Glass) bonding process, that is, FPC is mounted on the display panel.

[0003] The FOG bonding process mainly includes: (1) ACF attachment, pasting ACF of specified length on the ITO terminal of the liquid crystal glass or the pin of the FPC to be bonded; (2) pre-pressing, aligning the pins of the FPC and the ITO terminal of the liquid crystal glass through the auxiliary image system on the FOG bonding machine, and pre-pressing to form a preliminary connection; (3) main pressing, under high temperature and pressure, the pre-bonded LCM product is subjected to main bonding, and the electrical connection between the FPC and the liquid crystal glass is achieved through the deformation of the ACF conductive particles and the rupture of the insulating layer. At the same time, the two different materials of FPC and liquid crystal glass are connected together through the polymerization and hardening of the ACF glue at high temperature to provide sufficient mechanical connection strength.

[0004] The FOG pre-pressing process on the market uses a split pre-pressing head and a pressing table, which is connected to a loading platform and has low precision. In addition, the production efficiency is slow for display panels that require pre-pressing in multiple sections. Summary of the invention

[0005] The present invention provides a pre-pressing bonding device to solve the technical problems of low bonding accuracy and low bonding efficiency in the prior art.

[0006] To solve the above problems, the technical solution adopted by the present invention is:

[0007] The present invention provides a pre-stressing bonding device, comprising a support, wherein the support comprises a first installation area, a second installation area, a first hollow area, a second hollow area, and a back support area; a pre-stressing head unit is installed in the first installation area, and the first installation area and the pre-stressing head unit are more than two groups; a pre-stressing pressing table unit is installed in the second installation area, and the second installation area and the pre-stressing pressing table unit are more than two groups; the pre-stressing head unit and the pre-stressing pressing table unit are in the same vertical direction; the first hollow area is connected to a transmission unit that transmits an FPC to the pre-stressing head unit, and the first hollow area and the transmission unit are more than two groups; the second hollow area is provided with a correction unit that can shoot the FPC and the substrate for alignment, and the second hollow area and the correction unit are more than two groups; a transfer unit that absorbs the FPC and places the transfer unit is provided on the back support area, and the correction unit is arranged below the transfer unit, and the transfer unit is arranged above the transfer unit;

[0008] Further, the pre-pressing head unit includes a pre-pressing part, which includes a head for pre-pressing, a head seat for mounting the head, and a first pressing plate for limiting the head; the lower end of the head seat is in a bow shape, the rear side of the head is in a mirrored bow shape, and the head seat clamps the rear side of the head; the first pressing plate includes a limiting surface, which contacts the front of the head; and a first adsorption hole for adsorbing the front end of the FPC is also provided below the head;

[0009] Further, the pre-pressing head unit includes a horizontal adjustment part arranged above the pre-pressing part, the horizontal adjustment part is used to adjust the horizontality of the pre-pressing part, the horizontal adjustment part is provided with a plurality of high temperature resistant horizontal adjustment parts, a first pressure head connecting part connecting the horizontal adjustment part and the pressure head seat, a heat insulation part for heat insulation is provided below the first pressure head connecting part, the horizontal adjustment part passes through the first pressure head connecting part and abuts against the pressure head seat with the heat insulation part, and a spacing is reserved between the upper surface of the pressure head seat and the lower surface of the heat insulation part; the first pressure head connecting part is also provided with a reinforcement part for fixing the first pressure head connecting part, there are a plurality of reinforcement parts, and there are horizontal adjustment parts on both sides;

[0010] Preferably, the pre-pressing head unit further comprises an adsorption part for assisting in adsorbing the FPC, the adsorption part comprises auxiliary mounting parts fixedly connected to both sides of the first pressing head connecting part, a first adjusting part connected to the auxiliary mounting part, a second adjusting part and a third adjusting part sleeved on the first adjusting part, the first adjusting part can drive the first adjusting part and the second adjusting part to be adjusted along the first direction, the second adjusting part and the third adjusting part can be adjusted along the second direction, and the third adjusting part can be adjusted for the second time along the first direction; an adsorption part for adsorbing the rear end of the FPC is provided below the second adjusting part and the third adjusting part;

[0011] Further, the second installation area is provided with a first protrusion, the pre-pressing pressing table unit includes a pressing table arranged on the first protrusion, the first protrusion is located in the middle and lower part of the pressing table to support the pressing table, and the pressing table is a double-layer three-dimensional trapezoid; a limiting member is installed on the second installation area, which is located at the rear side of the pressing table for limiting, and a second pressing plate is installed on the second installation area, the second pressing plate includes a second inclined surface, and the pressing table includes a first inclined surface, the second pressing plate is sleeved on the limiting member, and the second inclined surface abuts against the first inclined surfaces on both sides of the pressing table to complete the fixation;

[0012] Preferably, the pre-pressing pressing table unit includes a force measuring piece, a force measuring plate, and a fixture for mounting the force measuring piece, the fixture is detachably arranged on the pressing table, the upper surface of the force measuring piece abuts against the force measuring plate, and the force measuring plate is fixed to the fixture;

[0013] Preferably, the transfer unit comprises a transfer robot and a moving part, the transfer robot is in two or more groups, and the transfer robot cross-places the FPC through the moving part;

[0014] Preferably, the conveying unit comprises a conveying part, on which a conveying platform and a waste box are provided, the conveying platform is provided with a second adsorption hole for adsorbing the FPC, and the waste box is used to place the unrecognizable FPC;

[0015] Preferably, the correction unit comprises a displacement part, on which an image acquisition part is provided, and the displacement part moves the image acquisition part in multiple directions, and the image acquisition part collects the image of the display panel and the FPC position to complete the alignment;

[0016] Preferably, the workbench unit is located in front of the pre-pressing and pressing table unit, and the workbench unit includes a workbench for transporting the display panel, the workbench is provided with a plurality of brackets for supporting the FPC, and the workbench is parallel to the pressing table; the workbench unit includes an adjusting part, on which a workbench is provided, and drives the workbench to move in a third direction.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention provides a pre-stressing bonding device, which realizes integrated installation by installing two groups of symmetrical pre-stressing head units and pre-stressing crimping table units on an integrated marble casting support, thereby improving bonding accuracy and production efficiency; through the reasonable layout of the transmission unit, the correction unit, and the switching unit, which are used in conjunction with the pre-stressing head unit and the pre-stressing crimping table unit, the structure is compact, and space and cost are saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution proposed in the present invention, it is described in detail below in combination with the embodiments and drawings. It should be understood that the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, these drawings can be changed under the concept of the present invention.

[0020] Figure 1 An assembly perspective view of an embodiment of a support provided by the present invention;

[0021] Figure 2 An assembly stereogram of an embodiment of a pre-pressing head unit provided by the present invention;

[0022] Figure 3 for Figure 2 A partial enlarged assembly stereogram at point A in the middle;

[0023] Figure 4 An assembly stereogram of an embodiment of a pre-pressing and crimping table unit provided by the present invention;

[0024] Figure 5 An assembly perspective view of an embodiment of the adsorption portion provided by the present invention;

[0025] Figure 6 An assembly stereogram of an embodiment of a switching unit provided by the present invention;

[0026] Figure 7 An assembly stereogram of an embodiment of a correction unit provided by the present invention;

[0027] Figure 8 An assembly perspective view of an embodiment of a conveying unit provided by the present invention.

[0028] 1. First installation area; 2. Second installation area; 3. First hollow area; 4. Second hollow area; 5. Back support area; 9. Display area; 90. Pressure regulating member; 10. Pressure head; 11. Pressure head seat; 12. First pressure plate; 13. Driving unit; 14. Horizontal adjustment member; 15. First pressure head connecting member; 16. Second pressure head connecting member; 17. Heat insulation member; 18. Reinforcement member; 19. Auxiliary installation member; 20. First adjustment member; 200. Third hollow area; 21. Second adjustment member Part; 210, fourth hollow area; 22, third adjustment part; 220, adsorption part; 221, fifth hollow area; 222, groove area; 23, limit part; 24, pressing table; 25, second pressing plate; 26, fixture; 27, first protrusion; 28, force measuring part; 29, force plate; 30, conveying part; 31, waste box; 32, conveying table; 320, second adsorption hole; 40, displacement part; 41, image acquisition part; 50, transfer robot; 51, moving part. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Similar component numbers in the drawings represent similar components. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0030] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0031] It should also be understood that the terms used in this description of the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of the present invention. As used in the description of the embodiments of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms of "a", "an" and "the" are intended to include plural forms.

[0032] A prestressing bonding device provided in an embodiment of the present invention includes: a support for simultaneously carrying a prestressing head unit and a prestressing pressing table unit, the support is an integrated marble casting subjected to aging treatment, and more than two groups of prestressing head units and prestressing pressing table units are provided on the support to improve the stability and efficiency of prestressing bonding.

[0033] Please also read Figure 1 In this embodiment, the support includes: a first installation area 1 on which a pre-pressing head unit is installed, a second installation area 2 on which a pre-pressing pressing table unit is installed, the pre-pressing head unit and the pre-pressing pressing table unit are in the same vertical direction, and when there are two groups of pre-pressing head units, a display area 9 is provided on the front surface of the support and in the middle of the two groups of pre-pressing head units, and the pressure of the pressure head is monitored in real time through the display area 9, and is quickly adjusted through the pressure regulating member 90.

[0034] Please also read Figure 2 In this embodiment, the pre-pressing head unit includes a pre-pressing part, which includes a pressure head for pre-pressing, a pressure head seat 11 on which the pressure head is installed, and a first pressure plate 12 for limiting the pressure head; the lower end of the pressure head seat 11 is in a bow shape, and the rear side of the pressure head is in a mirrored bow shape. The pressure head seat 11 clamps the rear side of the pressure head, and the first pressure plate 12 includes a limiting surface, which contacts the front of the pressure head. The pressure head can be installed and disassembled by quick release, which is easy to operate; a first adsorption hole is also provided under the pressure head. When the pressure head is pressing down, the first adsorption hole adsorbs the FPC to prevent the FPC from position displacement.

[0035] Please also read Figure 3 In this embodiment, the pre-pressing head unit includes a horizontal adjustment part arranged above the pre-pressing part, the horizontal adjustment part is provided with a plurality of high temperature resistant horizontal adjustment parts 14, and a first pressure head connecting part 15 connecting the horizontal adjustment part 14 and the pressure head seat 11. The horizontal adjustment part 14 can be a nickel-plated screw. After the indentation detection, the indentation depth of the display panel is measured, and the height of the horizontal adjustment part 14 is adjusted to make the pressure head 10 on the same horizontal plane.

[0036] A heat insulating member 17 for heat insulation is provided below the first ram connector 15 to insulate the heat transferred from the ram seat 11. The horizontal adjustment member 14 passes through the first ram connector 15 and the heat insulating member 17 to abut the upper surface of the ram seat 11. A spacing of generally 15 cm is reserved between the upper surface of the ram seat 11 and the lower surface of the heat insulating member 17, which is convenient for adjusting the horizontality and the reserved spacing prevents high temperature from directly affecting other components. A reinforcement member 18 for fixing the first ram connector 15 and the second ram connector 16 is provided above the first ram connector 15, and there are multiple reinforcement members 18. The pre-stressing ram unit is provided with a driving part 13, and the second ram connector 16 is connected to the driving part 13. The driving part 13 drives the pre-stressing part and the horizontal adjustment part to move in the third direction.

[0037] Please also read Figure 5 In this embodiment, the pre-pressing head unit includes an adsorption portion for assisting in adsorbing the FPC, the adsorption portion includes an auxiliary mounting member 19 fixedly connected to both sides of the first pressure head connector 15, a first adjusting member 20 connected to the auxiliary mounting member 19, a third hollow area 200 and a third adjusting member 22 sleeved on the first adjusting member 20, the auxiliary mounting member 19 extends along the first direction, the first adjusting member 20 is provided with a third hollow area 200, and the third hollow area 200 can perform the first step of adjustment in the first direction along the auxiliary mounting member 19 extending in the first direction; the first adjusting member 20 extends along the second direction, the third hollow area 200 is provided with a fourth hollow area 210, the third adjusting member 22 is provided with a fifth hollow area 221, and the fourth hollow area 2 10 and the fifth hollow area 221 are sleeved on the first adjusting member 20 extending along the second direction, and the third hollow area 200 and the third adjusting member 22 can perform a second step adjustment along the second direction; a groove area 222 is provided on the upper surface of the third adjusting member 22, the fifth hollow area 221 is larger than the fourth hollow area 210, and the third adjusting member 22 performs a third step adjustment through the fifth hollow area 221 and the groove area 222, and the third step adjustment can be an angle adjustment; an adsorption member 220 for adsorbing the rear end of the FPC is provided below the second adjusting member 21 and the third adjusting member 22, and the adsorption member 220 can be a suction cup, and when the conveying platform 32 conveys the FPC to the pressing platform 24 through the conveying part 30, the adsorption part assists in adsorbing the rear end of the PFC to prevent it from falling.

[0038] Please also read Figure 4In this embodiment, the pre-pressing pressing platform unit includes a force measuring piece 28, a force measuring plate 29, and a fixture 26 for installing the force measuring piece 28. The fixture 26 is detachably arranged on the pressing platform 24, and the upper surface of the force measuring piece 28 abuts against the force measuring plate 29, and the force measuring plate 29 is fixed to the fixture 26. A pressure test can be performed every 12 hours, the pressure head is pressed down to the force measuring plate 29, and the pressure value is read to see if it is within the normal range, and the fixture 26 is easy to disassemble and move.

[0039] The second installation area 2 is provided with a first protrusion 27, and the pre-pressing pressing platform 24 unit includes a pressing platform 24 arranged on the first protrusion 27. The first protrusion 27 is located in the middle and lower part of the pressing platform 24 to support the pressing platform 24. The pressing platform 24 is made of quartz and does not need to be punched and fixed on the pressing platform 24; the pressing platform 24 is a double-layer three-dimensional trapezoid, and the rear layer is lower than the front side, which is convenient for avoiding the conveying platform 32 to convey the FPC and convenient for carrying the fixture 26; a limiting member 23 is installed on the second installation area 2, which is located at the rear side of the pressing platform 24 for limiting, and a second pressing plate 25 is installed on the second installation area 2, the second pressing plate 25 includes a second inclined surface, and the pressing platform 24 includes a first inclined surface. The second pressing plate 25 is sleeved on the limiting member 23 and the second inclined surface abuts against the first inclined surfaces on both sides of the pressing platform 24 to complete the fixation. At the same time, the second pressing plate 25 is fixed to the support, and finally the pre-pressing head unit and the pre-pressing pressing platform unit are located on the support at the same time, realizing integrated installation.

[0040] Please also read Figure 6 In this embodiment, a transfer unit is provided on the back support area 5, and the transfer unit includes a transfer robot 50 and a moving part 51; the conveying unit includes a conveying part 30, and a conveying table 32 and a waste box 31 are provided on the conveying part 30. A correction part is provided below the conveying part 30. After the online loading equipment loads the FPC, the transfer robot 50 absorbs the FPC and moves it to the conveying table through the moving part 51. The correction part takes pictures of both sides of the FPC, calculates the center position of the FPC, and places the FPC on the conveying table after aligning it with the center position of the conveying table. The conveying table is provided with a second adsorption hole 320 for quickly adsorbing the FPC. If the FPC cannot be identified, the FPC is directly prevented from the waste box 31, and the transfer robot 50 is reset. The transfer robot 50 is divided into two groups, and the FPC is placed crosswise on the conveying table through the moving part 51.

[0041] Please also read Figure 7 , Figure 8In this embodiment, the correction unit includes a displacement unit 40, and an image acquisition unit 41 is provided on the displacement unit; the workbench unit is located in front of the pre-pressing and pressing table unit, and the workbench unit includes a workbench for conveying the display panel, and the workbench is provided with a plurality of brackets for supporting the FPC; the conveying table for adsorbing the FPC is conveyed to the bottom of the pressure head through the conveying unit 30 through the first hollow area 3, and when the conveying table breaks the vacuum, the pressure head adsorbs the FPC bonding area, and the suction cups of the second adjusting member 21 and the third adjusting member 22 adsorb the rear end of the FPC, and the displacement unit 40 drives the image acquisition unit 41 moves to the bottom of the pressure head through the second hollow area 4, takes a photo of the FPC adsorbed on the pressure head, and then moves upward to reserve a photo position on the workbench; the display panel is adsorbed on the workbench, and the bonding area of ​​the display panel extends out of the workbench with a spacing of 10-15mm. The workbench moves to the top of the image acquisition unit 41, and the image acquisition unit 41 takes a photo of the bonding area of ​​the display panel adsorbed on the workbench. The workbench moves to the parallel position of the pressing table 24, and the bonding area of ​​the display panel extending from the workbench is placed on the pressing table 24. The pressure head presses down with the FPC to complete the bonding. When the display panel has multiple bonding areas or the bonding areas are on the front and back sides, the FPC is supported by a bracket. After bonding one side, the workbench can be rotated 180 degrees to place the bonding area on the other side on the pressing table 24.

[0042] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0044] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0045] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification.

[0048] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0049] The above is a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A pre-compression bonding device, comprising a support, characterized in that: The support comprises a first installation area (1), a second installation area (2), a first hollow area (3), a second hollow area (4), and a back support area (5); the first installation area (1) is installed with a pre-pressing head unit, and the first installation area (1) and the pre-pressing head unit are more than two groups; the second installation area (2) is installed with a pre-pressing pressing table unit, and the second installation area (2) and the pre-pressing pressing table unit are more than two groups; the pre-pressing head unit and the pre-pressing pressing table unit are in the same vertical direction; the first hollow area (3) is connected to a transmission unit that transmits the FPC to the pre-pressing head unit, and the first hollow area (3) and the transmission unit are more than two groups; the second hollow area (4) is provided with a correction unit that can photograph the FPC and the substrate for alignment, and the second hollow area (4) and the correction unit are more than two groups; the back support area (5) is provided with a transfer unit that absorbs the FPC and places the transfer unit, and the correction unit is arranged below the transmission unit, and the transfer unit is arranged above the transmission unit; The pre-pressing head unit also includes an adsorption part for assisting in adsorbing the FPC, the adsorption part includes a first press head connecting member (15), auxiliary mounting members (19) fixedly connected to both sides of the first press head connecting member (15), a first adjusting member (20) connected to the auxiliary mounting member (19), a second adjusting member (21) and a third adjusting member (22) sleeved on the first adjusting member (20), the first adjusting member (20) can drive the first adjusting member (20) and the second adjusting member (21) to be adjusted along a first direction, the second adjusting member (21) and the third adjusting member (22) can be adjusted along a second direction, and the third adjusting member (22) can be adjusted for a second time along the first direction; an adsorption member (220) for adsorbing the rear end of the FPC is provided below the second adjusting member (21) and the third adjusting member (22).

2. The pre-pressing bonding device according to claim 1, characterized in that: The pre-pressing head unit comprises a pre-pressing portion, which comprises a pressure head (10) for pre-pressing, a pressure head seat (11) on which the pressure head (10) is mounted, and a first pressure plate (12) for limiting the pressure head (10); a convex ridge protrudes toward the pressure head (10) on the contact surface between the pressure head seat (11) and the pressure head (10), and a groove is provided on the corresponding end surface of the pressure head (10), and the convex ridge is embedded in the groove; the first pressure plate (12) comprises a limiting surface, and a first inclined surface inclined upward is provided on the limiting surface, and a second inclined surface inclined downward is provided on the contact surface between the pressure head (10) and the limiting surface, and the limiting surface is in contact with the front of the pressure head (10); and the first inclined surface and the second inclined surface are in contact and fit; a first adsorption hole for adsorbing the front end of the FPC is also provided below the pressure head (10).

3. The pre-pressing bonding device according to claim 2, characterized in that: The pre-pressing head unit comprises a pre-pressing part, a horizontal adjustment part arranged above the pre-pressing part, the horizontal adjustment part is used to adjust the horizontality of the pre-pressing part, the horizontal adjustment part is provided with a plurality of horizontal adjustment parts (14), the first press head connecting part (15) connecting the horizontal adjustment part (14) and the press head seat (11), a heat insulation part (17) for heat insulation is provided below the first press head connecting part (15), the horizontal adjustment part (14) passes through the first press head connecting part (15) and abuts against the press head seat (11) with the heat insulation part (17), and a spacing is reserved between the upper surface of the press head seat (11) and the lower surface of the heat insulation part (17); the first press head connecting part (15) is also provided with a reinforcement part (18) for fixing the first press head connecting part (15), and the reinforcement part (18) is multiple, and there are horizontal adjustment parts (14) on both sides.

4. The pre-pressing bonding device according to claim 1, characterized in that: The second installation area (2) is provided with a first protruding portion (27), and the pre-pressing pressing platform unit includes a pressing platform (24) arranged on the first protruding portion (27), and the first protruding portion (27) is located in the lower middle of the pressing platform (24) to support the pressing platform (24), and the pressing platform (24) is a double-layer three-dimensional trapezoid; a limiting member (23) is installed on the second installation area (2), and is located at the rear side of the pressing platform (24) for limiting, and a second pressing plate (25) is installed on the second installation area (2), and the second pressing plate (25) includes a second inclined surface, and the pressing platform (24) includes a first inclined surface, and the second pressing plate (25) is sleeved on the limiting member (23) and the second inclined surface abuts against the first inclined surfaces on both sides of the pressing platform (24) to complete the fixation.

5. The pre-compression bonding device according to claim 4, characterized in that: The pre-pressing pressing platform unit comprises a force measuring piece (28), a force measuring plate (29), and a jig (26) for mounting the force measuring piece (28); the jig (26) is detachably arranged on the pressing platform (24); the upper surface of the force measuring piece (28) abuts against the force measuring plate (29); and the force measuring plate (29) is fixed to the jig (26).

6. The pre-compression bonding device according to claim 1, characterized in that: The transfer unit comprises a transfer robot (50) and a moving part (51). The transfer robot (50) is provided in two or more groups. The transfer robot (50) cross-places the FPC via the moving part (51).

7. The pre-compression bonding device according to claim 1, characterized in that: The conveying unit comprises a conveying part (30), on which a conveying platform (32) and a waste box (31) are provided, wherein the conveying platform (32) is provided with a second adsorption hole (320) for adsorbing FPCs, and the waste box (31) is used to place unrecognizable FPCs.

8. The pre-compression bonding device according to claim 1, characterized in that: The correction unit comprises a displacement part (40), an image acquisition part (41) is provided on the displacement part (40), the displacement part (40) moves the image acquisition part (41) in multiple directions, and the image acquisition part (41) collects images of the display panel and completes the alignment with the FPC position.

9. The pre-compression bonding device according to claim 1, comprising a workbench unit, characterized in that: The workbench unit is located in front of the pre-pressing and pressing table unit, and the workbench unit includes a workbench for transporting the display panel, the workbench is provided with a plurality of brackets for supporting the FPC, and the workbench is parallel to the pressing table (24); the workbench unit includes an adjusting part, the workbench is provided on the adjusting part, and drives the workbench to move in a third direction.

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