JPS6236263A - Mounting method of parts onto flexible printed board - Google Patents

Abstract

PURPOSE:To improve the efficiency in part mounting work and permit automatic mounting by forming a driving roll and trailing rolls thin at the center parts and installing sprockets at the both-edge projection parts of the driving roll and the holes corresponding to the sprockets onto a flexible printed board and carrying out both-surface mounting. CONSTITUTION:The center part of a driving roll 9 is cut, leaving the both edges, and sprockets 91 are formed at the both-edge projection parts. At the both edges in the direction of traveling of a flexible printed board 10, sprocket holes 101 corresponding to the sprockets 91 installed at the both edges of the driving roll are drilled. Also the center part of a trailing roll is cut, leaving the both edges. Therefore, when a tip part is mounted onto the flexible printed board 10, the both-surface mounting is carried out by pulling and shifting the flexible printed board 10 by the driving roll 9 and a plurality of trailing rolls. Therefore, the efficiency in mounting work for parts can be improved, and automatic mounting is permitted.

Description

DETAILED DESCRIPTION OF THE INVENTION [Summary] A method for mounting components on a flexible printed board, in which chip components are mounted while the flexible printed board is moved by a driving roll and a plurality of driven rolls.

[Industrial application field]

The present invention relates to a method for mounting components on a flexible printed board, and particularly to a method for mounting components on a flexible printed board, in which chip components are mounted while the flexible printed board is run on a plurality of rolls.

In recent years, with the rapid shift to electronic equipment, printed wiring boards have entered fields where they have not been used before, and continue to grow at a high rate. In particular, flexible printed boards were originally used for curved parts such as telephones and automobile dashboards, but recently they are being used in new fields that take advantage of the characteristics of flexible printed boards, and in fields that meet the demands of lightness, thinness, shortness, and smallness. It became so. However, flexible printed boards are highly flexible and thin, making it difficult to mount components.Therefore, there is a strong demand for the development of a method for mounting components on flexible printed boards that allows for easy component mounting and automated mounting. .

[Conventional technology]

The conventional method of mounting components on a flexible printed board is to mount the chip component onto a pattern that has been temporarily formed on the flexible printed board, and then apply adhesive to the parts other than the electrodes beforehand, and then the electrodes correspond to the pattern formed on the flexible printed board. After the parts are glued together, they are bonded by hand using jet solder or the like.

[Problem that the invention seeks to solve]

The above-mentioned conventional method for mounting components on flexible printed circuit boards has the problem of high flexibility and thin thickness, so components must be mounted manually, which requires a large amount of man-hours and reduces work efficiency. Ta.

Means for Solving Problem C] The present invention solves the above problems, improves the efficiency of component mounting work, and provides a method for mounting components on a flexible printed board that can be automatically mounted.

In other words, the flexible printed board is moved by a driving roll and a plurality of driven rolls to mount chip components, and the driving roll and driven rolls are formed to be medium-thin, and sprockets are attached to the protruding parts at both ends of the driving roll. established,
This problem can be solved by providing sprocket holes corresponding to the sprockets on both sides of the flexible printed board in the running direction to perform double-sided mounting.

[Effect]

The method for mounting chip components onto a flexible printed board described above enables automatic mounting of chip components while pulling and moving the flexible printed board using one driving roll and a plurality of driven rolls.

〔Example〕

FIG. 1 is a schematic side view illustrating an embodiment of the present invention.

In the figure, a long flexible printed board 1 is wound around a first driven roll 2 and rotatably fixed. Then, the second driven roll 3, the third driven roll 4, the fourth driven roll 5, and the drive roll 6 are rotatably fixed so as to be located at the corners of the rectangular shape.

Then, with the leading end of the flexible printed board 1 hooked on the drive roll 6, the drive roll 6 is rotated to move the flexible printed board 1 at a predetermined speed in the direction of the arrow. Then, the chip component 7 with the adhesive 8 applied to the center of the mounting surface of the chip component 7 is moved to a predetermined position (the center of the pattern to be mounted) in the first step using the second driven roll 3 and the third driven roll 4. ) are bonded so that the electrodes of the chip component 7 and the pattern formed on the flexible printed board 1 are in close contact with each other.

The chip components 7 temporarily bonded in this manner are bonded to the 40th driven roll 5 and the drive roll 6 by jet soldering in a jet tank (not shown) in the second step, and the flexible printed board l on which the components have been mounted is bonded to the drive roll 6. The structure is such that it is cut at a predetermined position after passing through.

FIG. 2 is a perspective view of essential parts explaining another embodiment of the present invention.

FIG. 2 shows a drive roll 9 and a flexible printed board 10 for mounting components on both sides of the flexible printed board.

That is, the driving roll 9 has a center portion cut out except for both ends, and sprockets 91 are formed at both ends.

Therefore, the flexible printed board 10 has a structure in which sprocket holes 101 corresponding to the sprockets 91 provided at both ends of the drive roll 9 are bored at both ends in the running direction.

Although only the drive roll 9 has been described in FIG. 2, the component mounting procedure for the other driven rolls is the same as that described in FIG. 1, except that the center portion is cut off leaving both ends intact.

[Effects of the Invention] As is clear from the above description, the present invention improves the efficiency of mounting components onto flexible printed boards and is extremely effective for automatic mounting.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view illustrating one embodiment of the present invention, and FIG. 2 is a perspective view of essential parts illustrating another embodiment of the present invention. In the figure, 1.10 is a flexible printed board, 2 is a first driven roll, 3 is a second driven roll, 4 is a third driven roll, 5 is a fourth driven roll, 6.9 is a drive roll, 7 is a tip part, 8 is an adhesive, 91 is a sprocket, and 101 is a sprocket hole. ≧T, gi6θj1h-buζjma loquats R”+揉aJfi
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Claims (2)

[Claims] (1) Chip parts (
7) The mounting method is characterized in that the flexible printed board (1) is moved by a drive roll (6) and a plurality of driven rolls (2) to (5) to mount the chip components. A method for mounting components on flexible printed boards. (2) The driving roll and the driven roll are formed to be medium-thin, and sprockets (91
), and sprocket holes (101) corresponding to the sprockets (91) are provided on both sides of the flexible printed board (10) in the running direction, so that double-sided mounting is possible. ) Method of mounting components on a flexible printed board as described in section.