CN111356293B

CN111356293B - FPC surface rubberizing device

Info

Publication number: CN111356293B
Application number: CN202010269328.9A
Authority: CN
Inventors: 李大路
Original assignee: Goertek Techology Co Ltd
Current assignee: Goertek Techology Co Ltd
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2021-10-26
Anticipated expiration: 2040-04-08
Also published as: CN111356293A

Abstract

The invention discloses an FPC surface rubberizing device which comprises a mounting plate and an overturning plate, wherein the mounting plate is used for positioning and mounting a whole FPC board, the overturning plate is connected to the mounting plate in an overturning manner and used for positioning and mounting a PSA board, a plurality of suction holes which are respectively used for generating negative pressure adsorption action on the FPC board and the PSA board are respectively formed in the surfaces of the mounting plate and the overturning plate, and the PSA board is attached to the FPC board when the overturning plate is overturned to be attached to the surface of the mounting plate. Therefore, through the action of each suction hole, when the FPC board is installed on the surface of the installation board, the FPC board can be kept to be completely stretched through the negative pressure suction action, and the curling and bending phenomena are avoided; meanwhile, when the PSA plate is installed on the surface of the turnover plate, the surface of the PSA plate can be kept flat everywhere through the action of negative pressure suction, and the phenomenon of bending and wrinkling is prevented. Therefore, the FPC surface rubberizing efficiency can be improved, the bending wrinkles generated in the attaching process of the PSA are avoided, and the rubberizing position is accurate.

Description

FPC surface rubberizing device

Technical Field

The invention relates to the technical field of SMT, in particular to a FPC surface rubberizing device.

Background

With the development of electronic technology, more and more electronic devices have been widely used.

The flat cable is also called a Flexible Printed Circuit (FPC), and it specifies flat cable rules, a wire sequence, a wire color, a wire number, and the like according to the industry specification, and is used for data transmission in a movable part and an active area, for example, a data line in which a main board inside a computer is connected to a hard disk and an optical drive, a data line in which a main board of a mobile phone is connected to a display screen, and a data line between connection devices are collectively called a flat cable.

At present, a small-sized FPC (pressure sensitive adhesive) generally adopts a mode of dividing a whole FPC into independent single FPCs by a board dividing machine and then attaching the PSA, and because the PSA and the Flex are attached together with a precision requirement, positioning and attaching are required. This kind of mode is the working method that industry at present extensively adopted, and its theory of operation is placing FPC on the location support plate earlier, for example place 4 etc. in proper order, and rethread clamp pressing FPC takes 1 PSA to place on the location support plate according to the position of reference column, and at last with PSA and FPC attached together, carry out the pressurize.

However, the PSA structure in the prior art can only process a few (e.g. 4) single FPCs at the same time, and if the number continues to increase, the PSA structure may cause the material to be easily bent and wrinkled due to the increase of the PSA area, and the PSA structure may be adhered before positioning is completed, thereby resulting in the rejection of the whole PSA. In addition, in the prior art, the whole FPC must be separated, and then PSA (pressure swing adsorption) attaching treatment is performed on each single FPC, so that the process flow is complicated, and the attaching efficiency is low.

Therefore, how to improve the efficiency of the FPC surface adhesive tape, avoid the bending wrinkles generated in the process of attaching the PSA, and ensure the accurate position of the adhesive tape is a technical problem faced by the technicians in the field.

Disclosure of Invention

The invention aims to provide an FPC surface rubberizing device which can improve FPC surface rubberizing efficiency, avoid bending wrinkles generated in a PSA attaching process and ensure that a rubberizing position is accurate.

In order to solve the technical problem, the invention provides an FPC surface rubberizing device which comprises a mounting plate and an overturning plate, wherein the mounting plate is used for positioning and mounting a whole FPC board, the overturning plate is connected to the mounting plate in an overturning manner and used for positioning and mounting a PSA board, a plurality of suction holes which are respectively used for generating negative pressure adsorption action on the FPC board and the PSA board are formed in the surfaces of the mounting plate and the overturning plate, and the PSA board is attached to the FPC board when the overturning plate is overturned to be attached to the surface of the mounting plate.

Preferably, the surface of the mounting plate is provided with a plurality of first positioning columns and/or positioning holes, and the surface of the turnover plate is provided with positioning holes and/or first positioning columns which are matched with the mounting plate for positioning.

Preferably, the surface of the mounting plate is also provided with a positioning plate for mounting the FPC board, and the surface of the positioning plate is vertically provided with a plurality of second positioning columns for positioning the mounting positions of the FPC board;

each suction hole is arranged on the surface of the positioning plate.

Preferably, the surface of the turnover plate is provided with an installation groove for positioning and installing the PSA plate;

and the suction holes are arranged on the bottom surface of the mounting groove.

Preferably, a connecting seat is arranged on the outer wall of the side edge of the mounting plate, a rotating shaft is arranged on the outer wall of the side edge of the turnover plate, and the rotating shaft is rotatably arranged in the connecting seat.

Preferably, a guide post extending vertically is vertically arranged on the surface of the connecting seat, a floating seat is slidably sleeved on the guide post, and the rotating shaft is rotatably arranged in the floating seat; a floating spring is abutted between the bottom surface of the floating seat and the surface of the connecting seat, and each second positioning column can be telescopically penetrated in the positioning plate; the hole depth of each positioning hole is larger than or equal to the column length of each first positioning column.

Preferably, the bottom end of each second positioning column is inserted into a groove hole reserved on the surface of the mounting plate, and a return spring is connected between the bottom end of each second positioning column and the bottom surface of the corresponding groove hole.

Preferably, a limiting plate for limiting the maximum ascending stroke of the floating seat is arranged at the top of the guide column.

Preferably, a plurality of guide columns are distributed along the length direction of the connecting seat, and the floating seat is sleeved on each guide column simultaneously; the rotating shaft is horizontally arranged in the floating seat along the length direction of the connecting seat.

Preferably, the side edge of the turnover plate is connected with a turnover handle which protrudes outwards so as to be convenient for a human hand to grasp, apply force and turn over.

The FPC surface rubberizing device provided by the invention mainly comprises an installation plate, a turnover plate and suction holes. Wherein, the mounting panel mainly used fixes a position and installs the monoblock FPC board, and the returning face plate mainly used fixes a position and installs the PSA board to the returning face plate can connect on the mounting panel with overturning. All seted up a plurality of and attracted the hole on the surface of mounting panel and returning face plate, be used for respectively through the negative pressure suction effect to FPC board and PSA board production adsorption to install above that, hug closely its absorption on the surface of mounting panel and returning face plate. Meanwhile, when the turnover plate is turned over by a preset angle to be mutually attached to the surface of the mounting plate, the PSA plate is attached to the FPC plate. Therefore, through the action of each suction hole, when the FPC board is installed on the surface of the installation board, the FPC board can be kept to be completely stretched through the negative pressure suction action, and the curling and bending phenomena are avoided; meanwhile, when the PSA plate is installed on the surface of the turnover plate, the surface of the PSA plate can be kept flat everywhere through the action of negative pressure suction, and the phenomenon of bending and wrinkling is prevented. And then the PSA board is attached to the FPC board by turning the turning board, so that the adhering operation of the PSA board on the surface of the FPC board is completed. Compared with the prior art, the invention can position and install a whole FPC board on the installation board without board splitting operation, thereby improving the FPC surface rubberizing efficiency, avoiding the bending wrinkles generated in the attaching process of the PSA and ensuring the rubberizing position to be accurate.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.

Fig. 2 is a schematic view of the mounting structure of the FPC board and the PSA board on the mounting board and the flip board.

Fig. 3 is a schematic structural view of the roll-over panel shown in fig. 1 in a closed state.

Fig. 4 is a schematic view of the roll-over panel shown in fig. 1 in a compacted state.

Wherein, in fig. 1-4:

FPC board-a, PSA board-b;

the device comprises a mounting plate-1, a turnover plate-2, a suction hole-3, a connecting seat-4, a rotating shaft-5, a guide column-6, a floating seat-7, a floating spring-8, a return spring-9 and a limiting plate-10;

the positioning device comprises a first positioning column-11, a positioning plate-12, a second positioning column-13, a positioning hole-21, a mounting groove-22 and a turning handle-23.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, fig. 1 is a schematic overall structure diagram of an embodiment of the present invention, fig. 2 is a schematic structural diagram of an FPC board a and a PSA board b mounted on a mounting board 1 and a flip board 2, fig. 3 is a schematic structural diagram of the flip board 2 shown in fig. 1 in a closed state, and fig. 4 is a schematic structural diagram of the flip board 2 shown in fig. 1 in a compressed state.

In a specific embodiment provided by the invention, the FPC surface rubberizing device mainly comprises an installation plate 1, a turnover plate 2 and suction holes 3.

Wherein, the mounting plate 1 is mainly used for positioning and mounting the whole FPC board a, the turnover plate 2 is mainly used for positioning and mounting the PSA board b, and the turnover plate 2 is connected on the mounting plate 1 in a turnover way.

All seted up a plurality of on the surface of mounting panel 1 and returning face plate 2 and attracted hole 3, be used for respectively through the negative pressure suction effect to FPC board a and PSA board b production adsorption to installing above that, hug closely its absorption on the surface of mounting panel 1 and returning face plate 2. Meanwhile, when the turnover plate 2 is turned over by a preset angle to be mutually attached to the surface of the mounting plate 1, the PSA plate b is attached to the FPC plate a.

Thus, through the action of each suction hole 3, when the FPC board a is installed on the surface of the installation board 1, the FPC board a can be kept to be completely stretched through the negative pressure suction action, and the curling and bending phenomena are avoided; meanwhile, when the PSA board b is installed on the surface of the turnover plate 2, the surface of the PSA board b can be kept flat everywhere through the action of negative pressure suction, and the phenomenon of bending and wrinkling is prevented. And then the PSA board b is attached to the FPC board a by turning the turning plate 2, so that the adhering operation of the PSA board b on the surface of the FPC board a is completed.

Compare in prior art, this embodiment can fix a position installation monoblock FPC board a on mounting panel 1, need not to carry out the branch board operation, consequently can improve FPC surface rubberizing efficiency, avoids PSA to produce crooked fold at attached in-process simultaneously, guarantees that the rubberizing position is accurate.

In order to ensure that the turnover plate 2 can be accurately attached to the surface of the mounting plate 1 after being turned in place, the first positioning posts 11 of a plurality of are vertically arranged on the surface of the mounting plate 1, and meanwhile, a plurality of positioning holes 21 are arranged on the surface of the turnover plate 2. Specifically, the mounting plate 1 and the turnover plate 2 can be rectangular integrally, the first positioning posts 11 can be arranged at each corner of the mounting plate 1, and similarly, each positioning hole 21 can also be arranged at each corner of the turnover plate 2. Obviously, the distribution of the first positioning posts 11 on the surface of the mounting plate 1 is the same as the distribution of the positioning holes 21 on the surface of the turnover plate 2, so that when the turnover plate 2 is turned over to be attached to the surface of the mounting plate 1, the first positioning posts 11 can be inserted into the corresponding positioning holes 21. Generally, 4 first positioning posts 11 can be simultaneously disposed on the surface of the

mounting plate

1, and 4 positioning holes 21 can be simultaneously formed on the surface of the turnover plate 2. Of course, the specific position of each first positioning column 11 on the surface of the mounting plate 1 is not fixed, and similarly, the specific position of each positioning hole 21 on the surface of the turnover plate 2 is not fixed, and both positions change synchronously. The first positioning post 11 may be provided on the surface of the reversing plate 2, and the positioning hole 21 may be provided on the surface of the mounting plate 1, and the positional relationship between the two may be interchanged, and for convenience of discussion, the following description will be made with the first positioning post 11 provided on the mounting plate 1 and the positioning hole 21 provided on the reversing plate 2.

Further, in order to facilitate the positioning and mounting of the FPC board a on the surface of the mounting board 1, in the present embodiment, a positioning board 12 is provided on the surface of the mounting board 1 (e.g., at the middle area position, etc.), and a plurality of second positioning posts 13 (e.g., 4 or more) are erected on the surface of the positioning board 12 (e.g., at the edge position, etc.). Specifically, the specific shape of the positioning plate 12 is the same as the shape of the currently processed whole piece of FPC board a, which can facilitate comparison and installation by the worker. When the FPC board is installed, the positions of the through holes reserved on the FPC board a can be determined according to the arrangement positions of the second positioning columns 13, and therefore the FPC board a can be quickly positioned and installed on the positioning plate 12. Meanwhile, in order to ensure the adsorption effect of the suction holes 3 on the FPC board a, each suction hole 3 is specifically formed on the surface of the positioning plate 12.

Similarly, in order to facilitate the positioning and installation of the PSA sheet b on the surface of the roll-over panel 2, the installation groove 22 is formed on the surface of the roll-over panel 2 (e.g., at the middle position). Specifically, the installation groove 22 has the same shape as the currently processed PSA sheet b and has a depth corresponding to the thickness of a single PSA sheet b, and when the PSA sheet b is installed in the installation groove 22, the surface height thereof is flush with the surface height of the inversion plate 2. Meanwhile, in order to ensure the adsorption effect of the suction holes 3 on the PSA sheet b, each suction hole 3 is specifically formed on the groove bottom surface of the mounting groove 22.

In addition, in order to ensure that the turning motion of the turning plate 2 on the mounting plate 1 is smooth and stable, the connecting seat 4 is provided on the outer wall of the side edge of the mounting plate 1 in the embodiment, and the rotating shaft 5 is provided on the outer wall of the side edge of the turning plate 2, and the rotating shaft 5 is rotatably installed in the connecting seat 4, so that the turning motion of the turning plate 2 on the mounting plate 1 is realized through the rotating motion of the rotating shaft 5 in the connecting seat 4. Of course, the connection manner of the turnover plate 2 and the mounting plate 1 is not limited to the structure of the rotating shaft 5 and the connecting base 4, and other connection manners such as hinge connection may be adopted.

In another preferred embodiment, in order to improve the adhesion tightness and the mounting stability of the PSA sheet b on the surface of the FPC sheet a, the present embodiment is provided with guide posts 6 standing on the surface of the connector holder 4, while a floating holder 7 is mounted on the guide posts 6 in a nested manner, and the rotary shaft 5 is rotatably mounted in the floating holder 7. Further, a floating spring 8 is abutted between the bottom surface of the floating holder 7 and the surface of the connecting holder 4. So arranged, the floating seat 7 can float vertically on the guide column 6 along the axial direction thereof, while the rotating shaft 5 can simultaneously perform a rotating motion in the floating seat 7. When the rotating shaft 5 rotates for a preset angle until the turnover plate 2 turns over to be attached to the surface of the mounting plate 1, the floating seat 7 floats at a certain height above the connecting seat 4 through the support of the floating spring 8, at this time, the top ends of the first positioning columns 11 are just inserted into the positioning holes 21, the top ends of the second positioning columns 13 are abutted to the surface of the PSA plate b, and a certain gap is kept between the surface of the PSA plate b and the surface of the FPC plate a.

As mentioned above, each second positioning post 13 in this embodiment can be telescopically inserted into the positioning plate 12, and the depth of each positioning hole 21 is greater than or equal to the post length of each first positioning post 11. So set up, after the top of each second reference column 13 and the surperficial butt of PSA board b, the staff still can continue to carry out the vertical operation of pushing down to upset board 2 for floating seat 7 compresses tightly floating spring 8, and the certain distance that floats downwards, and each second reference column 13 is along vertical retraction to locating plate 12 in simultaneously, and each first reference column 11 deepens gradually and the cooperation degree of depth of corresponding locating hole 21. Until each second positioning column 13 retracts to the top height which is flush with the surface height of the FPC board a, the surface of the PSA board b presses the surface of the FPC board a to finish the pasting operation, at this moment, the floating seat 7 reaches the maximum descending stroke, and the matching depth of each first positioning column 11 and the corresponding positioning hole 21 reaches the maximum.

Furthermore, in the present embodiment, a return spring 9 is connected to the bottom end of each second positioning column 13, and each second positioning column 13 is inserted into a groove hole (not shown) reserved on the surface of the mounting plate 1, and the bottom end of the return spring 9 is connected to the bottom surface of each groove hole. With the arrangement, when each second positioning column 13 is contracted under the vertical downward pressure of the turnover plate 2, each return spring 9 is compressed at the same time to accumulate elastic potential energy, so that the pressing force between the PSA plate b and the FPC plate a is larger and the pressing degree is larger under the action of the elastic force, and the installation tightness of the PSA plate b on the surface of the FPC plate a is further improved. Moreover, when the worker looses the hand to remove the force, the turnover plate 2 can be reversely bounced under the elastic force action of each return spring 9, so that the reverse turnover operation is convenient.

Furthermore, considering that the floating seat 7 will bounce vertically along the guide post 6 under the elastic force of the floating spring 8, in order to prevent the floating seat 7 from falling off the guide post 6 carelessly, the embodiment further sets a limit plate 10 on the top of the guide post 6. In particular, the limiting plate 10 may be a ring plate circumferentially disposed on the top end surface of the guide post 6, so as to abut on the surface of the floating seat 7 when the floating seat 7 floats and rises along the guide post 6, preventing it from rising further.

Moreover, for guaranteeing that the upper and lower floating motion of floating seat 7 on guide post 6 is stable, in this embodiment, guide post 6 has a plurality ofly, for example 2 ~ 4 etc. along the length direction of connecting seat 4 simultaneous distribution, and floating seat 7 overlaps simultaneously and establishes on a plurality of guide posts 6. With such an arrangement, the floating seat 7 can be prevented from shaking or inclining due to the influence of the self-weight when the floating seat performs floating motion. Meanwhile, a groove hole is opened on the surface of the floating seat 7 along the length direction thereof, and the rotation shaft 5 is horizontally arranged in the groove hole. Generally, the length direction of the floating seat 7 is the length direction of the connecting seat 4.

In addition, for the upset operation of the staff realization to upset board 2 of making things convenient for, upset handle 23 has still been connected on the side of upset board 2 to make things convenient for the staff to carry out the gripping application of force with the hand.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The FPC surface rubberizing device is characterized by comprising a mounting plate (1) for positioning and mounting a whole FPC board (a) and a turnover plate (2) which is connected to the mounting plate (1) in a turnover manner and used for positioning and mounting a PSA board (b), wherein the surfaces of the mounting plate (1) and the turnover plate (2) are respectively provided with a plurality of suction holes (3) for generating negative pressure adsorption action on the FPC board (a) and the PSA board (b), and the PSA board (b) is attached to the FPC board (a) when the turnover plate (2) is turned over to be attached to the surface of the mounting plate (1);

a plurality of first positioning columns (11) and/or positioning holes (21) are arranged on the surface of the mounting plate (1), and the positioning holes (21) and/or the first positioning columns (11) which are matched with the mounting plate (1) for positioning are arranged on the surface of the turnover plate (2);

a positioning plate (12) for mounting the FPC board (a) is further arranged in the middle area of the surface of the mounting plate (1), and a plurality of second positioning columns (13) for positioning the mounting positions of the reserved through holes of the FPC board (a) are vertically arranged at the edge of the surface of the positioning plate (12);

each suction hole (3) is arranged on the surface of the positioning plate (12);

the surface of the turnover plate (2) is provided with a mounting groove (22) for positioning and mounting the PSA plate (b);

each suction hole (3) is arranged on the bottom surface of the mounting groove (22);

a connecting seat (4) is arranged on the outer wall of the side edge of the mounting plate (1), a rotating shaft (5) is arranged on the outer wall of the side edge of the turnover plate (2), and the rotating shaft (5) is rotatably arranged in the connecting seat (4);

a guide post (6) extending vertically is vertically arranged on the surface of the connecting seat (4), a floating seat (7) is slidably sleeved on the guide post (6), and the rotating shaft (5) is rotatably arranged in the floating seat (7); a floating spring (8) is abutted between the bottom surface of the floating seat (7) and the surface of the connecting seat (4), and each second positioning column (13) can be telescopically penetrated in the positioning plate (12); the hole depth of each positioning hole (21) is larger than or equal to the column length of each first positioning column (11);

the bottom ends of the second positioning columns (13) are inserted into the groove holes reserved in the surface of the mounting plate (1), and return springs (9) are connected between the bottom ends of the second positioning columns (13) and the bottom surfaces of the corresponding groove holes, so that after a user looses his hands to remove force, the turnover plate (2) is reversely bounced up through the elasticity of the return springs (9) to perform reverse turnover operation.

2. The FPC surface rubberizing device according to claim 1, characterized in that a limiting plate (10) for limiting the maximum lifting travel of said floating seat (7) is provided at the top of said guide posts (6).

3. The FPC surface rubberizing device according to claim 2, wherein a plurality of guide posts (6) are distributed along the length direction of the connecting seat (4), and the floating seats (7) are simultaneously sleeved on the guide posts (6); the rotating shaft (5) is horizontally arranged in the floating seat (7) along the length direction of the connecting seat (4).

4. The FPC surface rubberizing device according to claim 1, wherein a turning handle (23) protruding outwards is connected to a side edge of the turning plate (2) so as to be grasped and turned by a human hand.