KR100767348B1 - Adhesive attach machine for fix flexible printed circuit board on main printed circuit board - Google Patents

Abstract

The main circuit board is a flexible circuit board which can easily attach a double-sided tape for fixing a flexible printed circuit board for driving a flat panel display device mounted on a mobile phone or various portable multimedia devices to the main circuit board side. A double-sided tape attachment device for attaching to

The double-sided tape attachment device for attaching such a flexible circuit board to the main circuit board,

A first rotary table provided with a work surface having a work surface, a plurality of stages rotated on the work surface by receiving power from a driving source, and for loading a flexible circuit board, and separated from the first turn table. A second rotary table having a rotary surface at a higher position than the rotary table, and a double-sided tape which is installed on the second rotary table and moves along the second rotary table, and attaches the tape to the flexible circuit board loaded on the stage. A tape attaching machine having a attachable head capable of supplying the tape attaching machine and a plurality of double-sided tapes which are located on the circumferential outer side of the second rotary table and rolled in a rolled state in one direction, can be supplied to the attaching head in a state where they can be adsorbed one by one. A tape feeder and hinged on the circumferential outer side of the first rotary table Inverted head mounted on the arm that can rotate about the point, inverts the attitude of the flexible circuit board loaded on the stage, and irradiates a laser to the opposite side of the surface where the double-sided tape is attached. It includes a display unit for displaying.

  Board module for flat panel display, flexible circuit board for driving module, double-sided tape attachment, two rotary tables, tape attacher, tape feeder, improved work efficiency, improved productivity

Description

Adherent attach machine for fix flexible printed circuit board on main printed circuit board

1 is a plan view illustrating the entire structure of a double-sided tape applying apparatus for attaching a flexible circuit board to a main circuit board according to an embodiment of the present invention.

FIG. 2 is a side view illustrating the entire structure of a double-sided tape applying apparatus for attaching a flexible circuit board to a main circuit board according to an embodiment of the present invention.

3 is a view for explaining the stage structure of FIG.

4 is a view for explaining the attachment head structure of FIG.

5 is a view for explaining the tape feeder structure of FIG.

FIG. 6 is a partially enlarged view for explaining the operation of FIG. 5.

7 is a view for explaining the structure of the pressure roller of FIG.

8 is a view for explaining the operation of FIG.

FIG. 9 is a diagram for describing the inverting head structure of FIG. 1.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double-sided tape attachment device for attaching a flexible circuit board to a main circuit board, and more particularly, to a flexible printed circuit board for driving a flat panel display device mounted on a mobile phone or various portable multimedia devices. The present invention relates to a double-sided tape attachment device for attaching a flexible circuit board to the main circuit board which can easily attach a double-sided tape for fixing the board to the main circuit board side.

In general, various portable electronic devices such as mobile phones and personal multimedia players (PMPs) are equipped with a board module for a flat panel display device such as an LCD panel to implement an image, which is connected to a main circuit board installed inside the main body of the device. Various electrical and video signals are applied from a flexible printed circuit board.

The flexible printed circuit board is grounded to face one side of the main circuit board so as to enable driving of the board module according to a control signal of the main circuit board, thereby electrically connecting the main circuit board and the board module. Connect.

As a method of attaching the flexible circuit board to the main circuit board side, there is a method of applying by applying a liquid adhesive such as epoxy. Since it must go through, the process is complicated and the work time is excessive.

In order to improve this disadvantage, before attaching the main circuit board and the flexible circuit board, a double-sided tape having an adhesive force is attached to one side of the flexible circuit board, and the two substrates are attached to each other by the double-sided adhesive force of the tape. Is presented.

In order to bond the two substrates to the double-sided tape as described above, after manufacturing the flexible circuit board, a separate operation of attaching the double-sided tape is performed. One side of the double-sided tape is brought into contact with the flexible circuit board, and the opposite side of the tape is a release paper. Is supplied attached.

However, the operation of attaching the double-sided tape to the flexible circuit board side is performed by manual operation of detaching one-sided double-sided tape on the rolled sheet by the operator and attaching the double-sided tape to the flexible circuit board. In most cases, the work time and personnel are excessively consumed.

In particular, as described above, the double-sided tape attachment method by manual operation is a factor that causes excessive defective quality due to easily occurring deviation of the attachment position of the double-sided tape according to the operator or the work environment. Therefore, mass production is difficult with such a manual attachment method, and there is a limit to improving work efficiency and productivity.

The present invention has been made to solve the conventional problems as described above, the object of the present invention is to simplify the operation of attaching the double-sided tape to the flexible circuit board, in particular in the rotary method by the rotation of the rotary table The present invention provides a double-sided tape attachment device for attaching a flexible printed circuit board to the main circuit board, which can attach a large amount of double-sided tape to the flexible printed circuit board side in a short time.

In order to realize the object of the present invention as described above,

A first rotary table provided with a work surface having a work surface, a plurality of stages rotated on the work surface by receiving power from a driving source, and for loading a flexible circuit board, and separated from the first turn table. A second rotary table having a rotary surface at a higher position than the rotary table, and a double-sided tape which is installed on the second rotary table and moves along the second rotary table, and attaches the tape to the flexible circuit board loaded on the stage. A tape attaching machine having a attachable head capable of supplying the tape attaching machine and a plurality of double-sided tapes which are located on the circumferential outer side of the second rotary table and rolled in a rolled state in one direction, can be supplied to the attaching head in a state where they can be adsorbed one by one. A tape feeder and hinged on the circumferential outer side of the first rotary table Inverted head mounted on the arm that can rotate about the point, inverts the attitude of the flexible circuit board loaded on the stage, and irradiates a laser to the opposite side of the surface where the double-sided tape is attached. Provided is a double-sided tape attachment device for attaching a flexible printed circuit board including a display unit for displaying a to a main circuit board.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Embodiments of the present invention are described to the extent that those of ordinary skill in the art can practice the present invention.

Therefore, since the embodiments of the present invention may be modified in various other forms, the claims of the present invention are not limited to the embodiments described below.

1 and 2 are a plan view and one side view for explaining the overall structure of the double-sided tape attaching apparatus for attaching a flexible circuit board to the main circuit board according to an embodiment of the present invention, reference numeral 2 denotes a work table.

The work table 2 is formed in such a manner that a work area of a plane for attaching the double-sided tape F to one side of the flexible circuit board G (hereinafter, referred to as a "flexible board") is provided.

On the work table 2, a first rotary table 4 which rotates with respect to the center by receiving power from a driving source M1 such as a servo motor is positioned in a horizontal position as shown in FIG. 2, and above the table 4 A plurality of stages 6 for loading the flexible substrate G are arranged.

Each stage 6 is configured to be loaded while at least one or more flexible substrates G are horizontally mounted on the upper surface thereof, and a plurality of adsorption holes H for fixing the loaded flexible substrates G are also illustrated. It is formed on the upper surface of the stage 6 as in the third.

Although not shown in the drawings, the adsorption holes H are connected to a conventional vacuum generator that generates a vacuum pressure, and the flexible substrate G is disposed on the stage 6 by a vacuum pressure acting inside the holes H. Can be detachably fixed.

The stage 6 may be used among synthetic resins which do not cause scratches in contact with the substrate G, and a plurality of stages 6 may be arranged along the circumferential direction of the table 4 on the first rotating table 4 as shown in FIG. 1. Is positioned horizontally.

The flexible substrate G is in a position in which a normal pattern surface formed on one side thereof is in contact with the loading surface of the stage 6 so that the double-sided tape F may be attached to the opposite side of the pattern surface. Loaded.

Although each stage 6 is not shown in the drawing, a groove portion having a size that can accommodate various protrusions such as, for example, a soldering portion is formed on the pattern surface of the flexible substrate G. This structure can prevent the protruding portions of the flexible substrate G from being in contact with the loading surfaces of the respective stages 6 and being loaded in an inclined or irregular contact state.

On the work table 2 a second rotary table 8 is located adjacent to the first rotary table 4.

When the second rotary table 8 is rotated about the center by receiving power from a driving source M2 such as a servo motor, similarly to the first rotary table 4, the second rotary table 8 is higher than the first rotary table 4. It is fixed on the worktable 2 as shown in Figure 2 to have a rotation surface.

The second rotary table 8 is fixed with a tape attacher 10 for attaching the double-sided tape F on the flexible substrate G loaded on the stages 6.

The tape attacher 10 is a conventional cylinder equipped with an attachment head 12 at the end of the piston rod capable of linear reciprocation by fluid pressure. The tape attacher 10 has a lower surface of the second rotary table 8 as shown in FIG. It is fixed in the same posture.

At least one tape attacher 10 is installed along the circumferential direction of the second rotary table 8 so as to be positioned on the first rotary table 4 by a pressing operation of the attachment head 12. The double-sided tape (F) is attached to the flexible substrate (G).

One side (bottom) of the attachment head 12 is formed with a plurality of adsorption holes (H), as shown in Figure 4, each of the holes (H), although not shown in the drawing is a normal vacuum generation to generate a vacuum pressure It is connected to the device can suck the double-sided tape (F) by the vacuum pressure.

Meanwhile, as shown in FIG. 1, a tape feeder 14 for feeding a double-sided tape F to the tape attaching machine 10 is located at the circumferential outer side of the second rotary table 8. .

The tape feeder 14 is configured to be supplied while the double-sided tape F is moved by the vacuum pressure acting on the tape attacher 10, that is, the suction holes H of the attachment head 12.

To this end, in the present embodiment, as shown in FIG. 5, the sheet paper F1 having a plurality of double-sided tapes F attached thereto is wound in a roll state, and the sheet paper F1 roll is connected between two reels R1 and R2. The double-sided tape F is supplied to the attachment head 12 in a state where it can be sucked when moved while being wound from one reel R1 to the other reel R2.

And, the double-sided tape (F) is one side is attached to the sheet paper (F1) and the release paper (F2) is respectively attached to the opposite surface is wound in a roll form.

The two reels R1 and R2 are rotated by receiving power from a driving source M3 such as a motor, and the double-sided tape F is moved along the sheet F1 between the two reels R1 and R2. When the guide plate 16 for guiding the double-sided tape (F) can be separated from the sheet (F1) at one point of the movement path is installed as shown in FIG.

The guide plate 16 is returned when the sheet paper F1 moving between the two reels R1 and R2 along their connection section is returned via one side of the guide plate 16 as shown in FIG. 6. Double-sided tape (F) is gradually separated from the sheet (F1) serves to be smoothly adsorbed while being moved by the suction force of the attachment head 12.

Further, at the adsorption point of the double-sided tape F, a means for detecting and aligning the adsorption position of the tape F in advance may be further installed before the double-sided tape F is adsorbed by the tape attacher 10. .

The means detects the position of the double-sided tape (F) and the suction position of the double-sided tape (F) while the operation is controlled from the control unit (C) according to the detection signal of the sensor (S). It comprises a conveying unit 18 for changing in at least two directions.

The sensor S may be used among an optical sensor or a micro camera set to detect an appropriate adsorption position of the tape F at a point where the double-sided tape F is adsorbed by the attachment head 12. .

Such sensors detect a position of the tape F by, for example, light emission and light reception, or detect an arbitrary position marked on one side of the double-sided tape F so that a detection signal is applied to the controller C. To be connected.

In the transfer unit 18, two moving plates P1 and P2 are stacked and disposed on the work table 2, as shown in FIG. 5, and the plate P1 is located above the two plates P1 and P2. Above the tape feeder 14 is installed.

In addition, the two plates P1 and P2 may be moved along the guide rails L such as the "LM guide" during forward and reverse rotation of the screw connected to the motor M4 shaft as shown in FIG. 1. .

That is, the means detects the adsorption position of the double-sided tape (F) by the detection sensor (S) before adsorbing the double-sided tape (F) by the adsorption head (12) of the tape attacher 10 to the transfer unit (18). ), The positional deviation can be corrected within the allowable range while the suction position of the double-sided tape F is moved in at least two directions or more.

Accordingly, the double-sided tape F supplied from the tape feeder 14 is adsorbed to the attachment head 12 while the adsorption positions are aligned as described above, and then the second rotary table as shown in FIG. 7. (8) is moved onto the stage (6) of the first rotary table (4), and then attached to the flexible substrate (G) with the release paper (F2) attached by the pressing operation of the attachment head 12. .

In addition, the tape attacher 10 may be pitch-moved to a point corresponding to the plurality of flexible substrates G positioned at the attachment point of the double-sided tape F in the first rotation table 4.

To this end, in the present embodiment, as shown in FIG. 1, the second rotary table 8 moves along the base plate P3 installed to be movable on the work table 2, and is positioned at the double-sided tape F attachment point. The pitch can be moved to a point corresponding to the two flexible substrates G.

The base plate P3 is moved along a guide rail L such as an "LM guide" by receiving power by the screw part of the screw when the screw is connected to the motor M5 in the forward and reverse directions.

In addition, the attachment head 12 may be provided with a roller (K) that operates in conjunction with the pitch movement operation of the base plate (P3), as shown in Figure 4, the roller (K) is the attachment head 12 The bottom surface is rotatably fixed as shown in the drawing.

The roller K is not shown in the state in which the attachment head 12 is pressurized to attach the double-sided tape F to the flexible substrate G, but the double-sided tape (P3) is moved when the pitch of the base plate P3 is moved. Rolling in contact with F) serves to uniformly attach the tape (F) to the surface of the flexible substrate (G).

In addition, at one circumferential side of the first rotary table 4, a pressure roller 20 for pressing the double-sided tape F attached to the flexible substrate G once more when the table 4 is rotated is illustrated. Can be installed as in 1.

The pressing roller 20 is a separate support bracket 22 as shown in FIG. 7 so as to be rotated in contact with the substrate G loaded on each stage 6 when the first rotating table 4 is rotated. It is fixed to) and placed on the work table 2 in the same posture as in the drawing.

The pressing roller 20 is in contact with the flexible substrate G moving along the table 4 as shown in FIG. Press the double-sided tape (F) attached to the (G) side so that the tape (F) is uniformly attached to the entire surface of the substrate (G).

In particular, since the pressing operation is performed during the rotation of the first rotary table 4, the structure of the structure is taped to the substrate G side by using the single pressing roller 20 without installing a separate process or complicated apparatus. Allow (F) to be more evenly attached.

On the other hand, on the circumferential outer side of the first rotary table 4, a display unit 24 for marking an identification symbol, such as a lot number, is provided on one side of the substrate G. In the flexible board (G), the identification symbol is displayed on the opposite side to which the double-sided tape (F) is attached.

The display unit 24 is positioned on one side of the circumferential direction of the first rotary table 4 on the work table 2 as shown in FIG. 1, and the flexible substrate G moves with the double-sided tape F attached thereto. It is possible to make the marking work with the bottom of the board facing up.

To this end, in the present embodiment, as shown in FIGS. 2 and 9, the inverting head 26 formed on one side of the adsorption holes H capable of adsorbing the flexible substrate G at a vacuum pressure allows the arm 28 to rotate. As shown in the drawing, the flexible board G adsorbed to the inversion head 26 side is converted into an inverted state by the rotational movement of the arm 28.

The inversion head 26 is fixed to the arm 28 in a position capable of absorbing the flexible substrate G moving along the first rotary table 4 with the double-sided tape F attached thereto. The arm 28 is hinged to the fixing bracket 30 installed on the work table (2).

The fixing bracket 30 is provided with a driving source M6 such as a step motor, and the arm 28 is rotated based on a hinge point by receiving power from the motor shaft, and by the rotational movement of the arm 28, The flexible substrate G adsorbed on the inversion head 26 side is changed to the inverted state.

On the work table 2, a marking unit 32 capable of marking an identification symbol on the flexible board G having an inverted posture is positioned. The unit 32 has a conventional structure used for marking various identification symbols, characters, etc. on the surface of a workpiece using a laser.

When the display unit 24 is installed as described above, the flexible substrate G moves along the first rotary table 4 while the operation of writing various identification symbols during the operation of attaching the double-sided tape F is simple. Can be.

In addition, the flexible board G having the identification symbol marked with the posture reversed by the inversion head 26 is loaded again on the stage 6 of the first rotary table 4 by the arm 28. It is then unloaded in a state where it is located as an unloading point along the first rotating table 4.

As described above, according to the present invention, the flexible circuit board is loaded on the rotary table and moves along the table in a rotary manner, thereby easily attaching a double-sided tape and marking an identification symbol such as a lot number. .

In particular, the rotary table is provided with a plurality of stages, each of which can be loaded with at least two flexible printed circuit boards, so as to load and unload a plurality of flexible printed circuit boards on one rotary table, and to continuously identify and attach the double-sided tape. The ability to carry out symbolic notations greatly improves productivity while significantly reducing work area and time.

Claims (7)

A work surface having a work surface; A first rotating table that receives power from a driving source and is rotated on the work table and provided with a plurality of stages for loading the flexible circuit board; A second rotary table installed apart from the first rotary table and having a rotary surface at a position higher than the first rotary table; A tape attacher installed on the second rotating table and having an attachment head supplied with a double-sided tape moving along the second rotating table and attaching the tape to the flexible printed circuit board loaded on the stage; A tape feeder for feeding the double-sided tape wound on the circumferential direction of the second rotary table in a rolled state in one direction while being able to be adsorbed one by one to the attachment head while moving in one direction; A double-sided tape is attached to the opposite surface of the substrate by inverting the attitude of the flexible printed circuit board loaded on the stage by an inverting head mounted on an arm that is located on the circumferential outer side of the first rotating table and capable of rotating based on a hinge point. A display unit for displaying a unique identification symbol by irradiating a laser on the opposite surface; Double-sided tape attachment device for attaching a flexible circuit board comprising a main circuit board. The method according to claim 1, The stage is spaced apart at least two locations along the circumferential direction of the first rotary table, the upper surface of each stage is formed with adsorption holes for detachably fixing one or more flexible circuit boards by vacuum pressure Double-sided tape attachment device for attaching flexible circuit board to main circuit board. The method according to claim 1. The attachment head and the inversion head may include a flexible circuit board formed on one side of each of the heads with suction holes for detachably fixing either side of the double-sided tape or the flexible circuit board by vacuum pressure. Double sided tape attachment device for The method according to claim 1, The tape feeder connects the double-sided tape wound in a roll state to two reels so that the double-sided tape is supplied to the suction point corresponding to the attachment head while being wound from one reel to another reel, One side of the connection section of the double-sided tape is provided with a guide plate for guiding the movement path so that the double-sided tape is gradually separated from the sheet at the adsorption point of the attachment head, the double-sided tape via the guide plate to the attachment head side by the suction force Double-sided tape attachment device for attaching flexible circuit board to main circuit board to be absorbed while being transferred. The method according to claim 1, Double-sided tape attachment device for attaching the flexible circuit board to the main circuit board, And a means for detecting and correcting a suction position of the tape at the point where the double-sided tape is adsorbed by the attachment head, the double-sided tape attachment device for attaching the flexible circuit board to the main circuit board. The method according to claim 5, The means includes a detection sensor for detecting the position of the double-sided tape, and a transfer unit for changing the suction position of the double-sided tape in at least two directions while the operation is controlled from the control unit according to the detection signal of the sensor, The detection sensor is used among an optical sensor or a micro camera, The transfer unit is a double-sided tape attachment device for attaching a flexible circuit board to the main circuit board comprising two moving plates moving in different directions by forward and reverse rotation of the screw connected to the motor shaft. The method according to claim 1, Double-sided tape attachment device for attaching the flexible circuit board to the main circuit board, While being in contact with the upper surface of each stage, while contacting the flexible circuit board loaded on the stage during the rotation of the first rotary table while pressing the entire surface of the double-sided tape attached to the substrate by the pressing force by the rolling operation once more A double-sided tape attachment device for attaching a flexible circuit board to the main circuit board further comprising a pressure roller to uniformly attach.

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