CN220085194U

CN220085194U - Prepressing device for FPC lamination

Info

Publication number: CN220085194U
Application number: CN202321785736.5U
Authority: CN
Inventors: 蔡建明; 易菊红; 顾赛华
Original assignee: Suzhou Fuqiang Jianeng Precision Machinery Co ltd
Current assignee: Changshu Juxing Machinery Co ltd
Priority date: 2023-07-08
Filing date: 2023-07-08
Publication date: 2023-11-24
Anticipated expiration: 2033-07-08

Abstract

The utility model aims to disclose a prepressing device for FPC (flexible printed circuit) lamination, which relates to the technical field of LCD lamination and comprises a bracket, a pressing component and a supporting platform; the bracket is provided with a first vertical guide rail and a second vertical guide rail; the pressing assembly comprises a rotary assembly, a lifting cylinder and a pressing block, the rotary assembly drives the pressing block to rotate, the lifting cylinder drives the pressing block to move up and down, a heating unit is arranged in the pressing block, and a plurality of vacuum adsorption holes are formed in the bottom surface of the pressing block; the top of supporting platform sets up a plurality of pieces of concatenation, and technical effect: under the condition that a plurality of vacuum adsorption FPC of the pressing block are used for adsorbing FPC, placing a region to be bound of the COF at the top of the supporting platform, and driving the pressing block to lift by a lifting cylinder to efficiently prepress the COF and the FPC; through the concatenation piece quantity and the position at the top of change supporting platform, through the size adaptation not unidimensional FPC of change briquetting, realize the pre-compaction between unidimensional COF and the FPC.

Description

Prepressing device for FPC lamination

Technical Field

The utility model relates to the technical field of liquid crystal display lamination, in particular to a prepressing device for FPC lamination.

Background

The flexible packaging circuit board (Chip On flexible printed circuit, COF for short) and the flexible printed circuit board (Flexible Printed Circuit board, FPC for short) are bonded by using an electrically conductive adhesive film (ACF).

At present, when automatic binding is carried out between a COF and an FPC, prepressing is needed between the COF and the FPC, and the existing prepressing device also has the defects of insufficient automation degree and incapability of adapting to binding between COFs with different sizes and FPCs.

In view of this, there is a need to develop a pre-pressing device for FPC stitching to overcome the above-mentioned drawbacks.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to disclose a prepressing device for pressing an FPC, which aims to realize continuous efficient prepressing between a COF and the FPC and prepressing between COFs with different sizes and the FPC.

In order to achieve the aim, the utility model provides a prepressing device for FPC lamination, which comprises a bracket, a pressing component and a supporting platform;

the support is provided with a first vertical guide rail and a second vertical guide rail, and the pressing component ascends and descends along the first vertical guide rail and the second vertical guide rail;

the pressing assembly comprises a rotary assembly, a lifting cylinder and a pressing block, the rotary assembly drives the pressing block to rotate, the lifting cylinder drives the pressing block to move up and down, a heating unit is arranged in the pressing block, and a plurality of vacuum adsorption holes are formed in the bottom surface of the pressing block;

the top of the supporting platform is provided with a plurality of splicing blocks.

Preferably, the pressing assembly further comprises a vertical support plate, a first horizontal support plate and a second horizontal support plate;

the vertical supporting plate is lifted along the first vertical guide rail and the second vertical guide rail;

the first horizontal supporting plate is fixed on the vertical supporting plate, the rotary assembly is arranged below the first horizontal supporting plate, and the lifting cylinder is arranged in the middle of the rotary assembly;

the rotary assembly drives the third horizontal supporting plate to rotate, a first protruding part and a second protruding part are respectively arranged on two sides of the third horizontal supporting plate, a first connecting rod is arranged between the first protruding part and the second horizontal supporting plate, and a second connecting rod is arranged between the second protruding part and the second horizontal supporting plate;

the lifting cylinder drives the second horizontal support plate to lift, and the pressing block is arranged at the bottom of the second horizontal support plate.

Preferably, the press block comprises a base and a press head.

Preferably, a light source support is provided at one side of the base.

Preferably, an arc waist hole is arranged on the light source bracket.

Preferably, a first horizontal frame and a second horizontal frame are arranged on the other side of the base, and a cross beam is arranged at the top of the first horizontal frame and the top of the second horizontal frame.

Preferably, the cross beam is provided with a plurality of negative pressure suction heads.

Preferably, the first horizontal frame and the second horizontal frame are respectively provided with a waist hole.

Preferably, a pressure sensor module is arranged on top of the support platform.

Preferably, a CCD camera is arranged at the bottom of the supporting platform.

Compared with the prior art, the utility model has the following technical effects:

under the condition that a plurality of vacuum adsorption FPC of the pressing block are used for adsorbing FPC, placing a region to be bound of the COF at the top of the supporting platform, and driving the pressing block to lift by a lifting cylinder to efficiently prepress the COF and the FPC; the COF with different sizes can be adapted by changing the number and the positions of the splicing blocks at the top of the supporting platform, and the FPC with different sizes can be adapted by changing the size of the pressing block, so that the prepressing between the COF with different sizes and the FPC is realized.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of a prepressing device of the present utility model.

FIG. 2 is a schematic perspective view of the prepressing device of the present utility model.

Fig. 3 is an enlarged schematic view of the portion of fig. 2A according to the present utility model.

Fig. 4 is a schematic view of the display module and FPC of the present utility model.

Wherein, 1, a bracket; 11. a first vertical rail; 12. a second vertical rail; 2. pressing down the assembly; 21. a swivel assembly; 22. a lifting cylinder; 23. briquetting; 231. a heating unit; 232. a negative pressure adsorption hole; 233. a base; 234. a pressure head; 235. a light source support; 236. an arc waist hole; 237. a first horizontal shelf; 2371. waist holes; 238. a second horizontal shelf; 239. a cross beam; 2391. a negative pressure suction head; 24. a vertical support plate; 25. a first horizontal support plate; 26. a second horizontal support plate; 261. a tension spring; 27. a third horizontal support plate; 271. a first protrusion; 272. a second protruding portion; 273. a first link; 274. a second link; 3. a support platform; 31. splicing blocks; 32. a pressure sensor module; 33. a CCD camera; 4. a display module; 41. a panel; 42. a flexible package circuit board; 43. a protruding portion; 44. a region to be bound; 5. an FPC.

Detailed Description

The present utility model will be described in detail below with reference to the embodiments shown in the drawings, but it should be understood that the embodiments are not limited to the present utility model, and functional, method, or structural equivalents and alternatives according to the embodiments are within the scope of protection of the present utility model by those skilled in the art.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Example 1

Referring to fig. 1 to 3, this embodiment discloses a specific embodiment of a prepressing device for FPC bonding (hereinafter referred to as "prepressing device").

The prepressing device for FPC pressing is shown in fig. 1 to 3, and comprises a bracket 1, a pressing component 2 and a supporting platform 3; the bracket 1 is provided with a first vertical guide rail 11 and a second vertical guide rail 12, and the pressing component 2 is lifted along the first vertical guide rail 11 and the second vertical guide rail 12; the pressing assembly 2 comprises a rotation assembly 21, a lifting cylinder 22 and a pressing block 23, wherein the rotation assembly 21 drives the pressing block 23 to rotate, the lifting cylinder 22 drives the pressing block 23 to move up and down, a heating unit 231 is arranged in the pressing block 23, and a plurality of vacuum adsorption holes 232 are formed in the bottom surface of the pressing block 23; the top of the supporting platform 3 is provided with a plurality of splice blocks 31, and the COFs with different sizes can be adapted by changing the number and the positions of the splice blocks 31 at the top of the supporting platform 3.

Specifically, referring to fig. 4, fig. 4 is a schematic diagram of a display module and an FPC, where the display module 4 includes a panel 41, a flexible packaging circuit board 42 (COF), a protruding portion 43 and a region to be bound 44, and the region to be bound 44 is located at an end of the protruding portion 43.

Referring to fig. 1 to 3, the operating principle of the pre-pressing device is as follows: the pressing component comprises a rotation component 21, a lifting cylinder 22, a pressing block 23, a vertical supporting plate 24, a first horizontal supporting plate 25 and a second horizontal supporting plate 26; the first horizontal support plate 25 is fixed on the vertical support plate 24, the rotary assembly 21 is arranged below the first horizontal support plate 25, the lifting cylinder 22 is arranged in the middle of the rotary assembly 21, and the rotary assembly 21 is driven by a rotary motor; the turning assembly 21 drives the third horizontal support plate 27 to rotate, two sides of the third horizontal support plate 27 are respectively provided with a first protruding part 271 and a second protruding part 272, a first connecting rod 273 is arranged between the first protruding part 271 and the second horizontal support plate 26, a second connecting rod 274 is arranged between the second protruding part 272 and the second horizontal support plate 26, the turning assembly 21 drives the third horizontal support plate 27 to rotate, and the second horizontal support plate 26 is driven to rotate through the first connecting rod 273 and the second connecting rod 274, so that the pressing block 23 is driven to rotate; the lifting cylinder 22 drives the second horizontal support plate 26 to lift, and the pressing block 23 is arranged at the bottom of the second horizontal support plate 26; the vertical support plate 24 is lifted along the first vertical guide rail 11 and the second vertical guide rail 12, so that a first stage lifting of the pressing block 23 is formed; the cylinder 22 drives the second horizontal support plate 26 to lift, so that a second stage of lifting of the pressing block 23 is formed, and small-angle rotation of the pressing block 23 is realized through the rotary assembly 21 so as to improve the flexibility and precision of binding between the FPC and the COF. After the pre-pressing between the FPC and the COF is completed, in order to return the second horizontal support plate 26 at the fastest speed, tension springs 261 are respectively provided at both ends of the second horizontal support plate 26, and both ends of the tension springs 261 are respectively connected to the first horizontal support plate 25 and the second horizontal support plate 26.

Referring to fig. 1 to 3, in order to enhance binding between FPCs and COFs of different sizes, the pressing block 23 includes a base 233 and a pressing head 234, wherein the heating unit 231 is disposed on the base 233 and transfers heat to the pressing head 234, and the heating unit 231 is opened in advance to perform preheating before the pre-pressing operation; the pressing head 234 is fixed on the base 233 through a detachable structure, and the pressing heads 234 with different sizes are replaced to realize the adsorption of FPCs with different sizes.

Referring to fig. 1 to 3, in order to improve binding accuracy between FPC and COF, a light source bracket 235 is disposed on one side of the base 233, an arc waist hole 236 is disposed on the light source bracket 235, a light source is fixed to the arc waist hole 236, and the light source is adjusted to be fixed to different positions of the arc waist hole 236, so as to adjust the light path of the light source irradiated to the pressure head 234; the bottom of the supporting platform 3 is provided with a CCD camera 33, the CCD camera 33 is aligned with the pressure head 234, whether the position of the FPC is accurate or not is determined through the CCD camera 33, and the micro rotation position of the pressure head 234 is adjusted through the micro rotation of the rotary assembly 21, so that a positioning reference is provided for high-precision binding. In order to detect the pressure between briquetting 23 and supporting platform 3 in advance, the top of supporting platform 3 sets up pressure sensor module 32, and pressure sensor module 32 installs in supporting platform 3 when the pre-compaction debugging for detect the pressure between briquetting 23 and the supporting platform 3, after the pre-compaction debugging is accomplished, remove pressure sensor module 32, improve the efficiency of pre-compaction debugging.

Referring to fig. 1 to 3, since the pressing head 234 has a long shape, the area for sucking the FPC is limited to a position to be bound, if the size of the FPC is large, the FPC may fall down through the negative pressure sucking hole 232 of the pressing head 234 alone, for this purpose, the other side of the base 233 is provided with the first horizontal frame 237 and the second horizontal frame 238, the tops of the first horizontal frame 237 and the second horizontal frame 238 are provided with the cross beam 239, the cross beam 239 is provided with the plurality of negative pressure sucking heads 2391, the negative pressure sucking heads 2391 are used for sucking the rear end of the FPC, and the negative pressure sucking hole 232 is used for sucking the front end of the FPC, so that the front end and the rear end of the FPC are both sucked, and the FPC is prevented from falling down; the first horizontal frame 237 and the second horizontal frame 238 are respectively provided with a waist hole 2371, and the position of the cross beam 239 is adjusted through the waist holes 2371 so as to adapt to FPCs with different sizes.

Through the embodiment, under the condition that the FPC is adsorbed simultaneously through the negative pressure adsorption hole 232 and the negative pressure suction head 2391, the area to be bound of the COF is placed at the top of the supporting platform 3, and the lifting cylinder 22 drives the pressure head 234 to lift so as to effectively pre-press the COF and the FPC; the COFs with different sizes can be adapted by changing the number and the positions of the splice blocks 31 at the top of the supporting platform 3, and the prepressing between the COFs with different sizes and the FPC is realized by changing the sizes of 234 to adapt to the FPCs with different sizes.

Claims

1. The prepressing device for FPC pressing is characterized by comprising a bracket, a pressing component and a supporting platform;

2. The pre-pressing device for FPC pressing as claimed in claim 1, wherein the pressing assembly further comprises a vertical support plate, a first horizontal support plate, and a second horizontal support plate;

3. The pre-pressing device for FPC pressing according to claim 2, wherein the pressing block includes a base and a pressing head.

4. A pre-pressing apparatus for FPC bonding according to claim 3, wherein a light source holder is provided at one side of the base.

5. The pre-pressing apparatus for FPC stitching according to claim 4, wherein an arc-shaped waist hole is provided in the light source holder.

6. A pre-pressing device for FPC stitching according to claim 3, wherein a first horizontal frame and a second horizontal frame are provided on the other side of the base, and a cross beam is provided on top of the first horizontal frame and the second horizontal frame.

7. The pre-pressing device for pressing the FPC according to claim 6, wherein the cross beam is provided with a plurality of negative pressure suction heads.

8. The pre-pressing device for FPC stitching according to claim 6, wherein the first horizontal frame and the second horizontal frame are provided with waist holes, respectively.

9. The pre-compression device for FPC stitching according to any one of claims 1-8, wherein a pressure sensor module is provided on top of the support platform.

10. The pre-pressing device for FPC stitching according to any one of claims 1-8, wherein a CCD camera is provided at the bottom of the support platform.