JPS5820130B2 - Inductance element manufacturing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a coaxial lead type inductance element using a ferrite bead core.

Recently, electronic components in which a lead wire is inserted and locked into a ferrite bead core with a through hole formed in the axial direction in the center of a cylindrical ferrite have been used as inductance elements. However, there was a need for a method of manufacturing the device in a form suitable for use such as automatic insertion into a printed circuit board.

In view of the above points, the present invention aims to provide an inductance element manufacturing method that can efficiently manufacture an inductance element using a ferrite bead core in a form suitable for storage, transportation, and mounting on a printed circuit board. It is.

Embodiments of the inductance element manufacturing method according to the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, ferrite bead cores 3 are fed onto a transfer path 2 through a spring pipe 1 connected to a parts feeder.

Here, a positioning groove 5 corresponding to the fixing position A of the ferrite bead core 3 is formed at the tip of the transfer path 2 fixed to the base 4, as shown in FIG.

In addition, the transfer path 2 is connected to the pole bush 6 fixed to the base 4.
A core push rod 7 is supported so as to slide thereon.

Then, the ferrite bead core 3 on the transfer path 2 is transferred to the fixed position A where it is fitted into the positioning groove 5 by movement of the core push rod 7 in the direction of arrow B.

On the other hand, as shown in FIG. 2, an upper mold 11 is supported by a support head 10 fixed on a base 4 so as to be slidable up and down.
A lower mold 12 is supported slidably up and down with respect to the base 4.

Then, as shown in FIG. 4, the ferrite bead core 3 is pressed and fixed at the forming and fixing position A by a core holding member 14 provided on the upper mold 11 and urged in a downward protruding direction by a lever spring 13. In this state, a continuous lead wire 17 is supplied by a certain length from the die 16 at the tip of the lead wire insertion mechanism 15 so as to be inserted through the through hole of the ferrite bead core 3.

Then, the upper mold 11 descends as shown by arrow C, and the lower mold 1
2 rises as shown by the arrow.

As a result, the lead wire holding member 19 provided on the upper mold 11 and urged in a downward protruding direction by the lever spring 18,
The lead wire holder of the lower mold 12 is connected to the lead wire 1 by the member 20.
7 is clamped, and in this state, the upper die 11 is further lowered, and the lead wire 17 is caulked by its crushing die member 21 and the crushing die member 22 of the lower die 12.

As a result, as shown in FIG. 5, locking portions 23 are formed on the lead wires 17 on both sides of the ferrite bead core 3.

Now, as shown in FIG. 1, a cutter 31 is slidably supported on the support block 30 of the lead wire insertion mechanism 15, and the movement of the cutter 31 in the direction of arrow E causes
The lead wire 17 is cut to a certain length, thereby completing a single inductance element 32. After the upper mold 11 and the lower mold 12 are returned to their original positions, this cut inductance element 32 is returned to the base. The tape is transferred to the taping drum 34 by rotation of the transfer arm 33 pivoted on the table 4 in the direction of arrow F.

This taping drum 34 has a tape receiving recess 35 around it.
A V-groove 37 is formed in the inner convex peripheral edge 36, and a tape mount tape 38 is provided in the tape receiving recess 35.

Single electronic component 32 transferred to taping drum 34
is fitted into the V groove 37 at both ends of the lead wire 17 as shown in FIG.
located above.

Then, the electronic component unit 32 is transferred to a position below the tape presser roller 39 by continuous rotation of the taping drum 34 in the direction of arrow G, and at this position, the adhesive tape 40 is applied by the tape presser roller 39 as shown in FIG. As a result, as shown in FIG. 8, an inductance element chain 50 is created in which the inductance elements 32 are connected with tape at predetermined intervals. It is wound up by a mechanism.

Therefore, the inductance element is an inductance element series 50
It is stored and transported in this state, and when used, it is separated into individual parts.

According to the above embodiment, the following effects can be achieved.

(1) The continuous lead wire 17 is inserted into the ferrite bead core 3 for a certain length, caulked, and then the lead wire 17 is cut at a certain length, making it suitable for automation.

(2) Since the inductance elements are connected with tape and taken out as a series of inductance elements 50, convenience in storage, transportation, and use can be achieved.

(3) The lead wire 17 is attached to the ferrite bead core 3 by forming locking portions 23 by caulking on the lead wire 17 at both ends of the ferrite bead core 3. It is simple and has the advantage that caulking can be easily performed using a pair of molds 11 and 12.

According to the present invention, there is provided a method for manufacturing an inductance element that can efficiently manufacture an inductance element using a ferrite bead core in a form suitable for storage, transportation, and attachment to a printed circuit board.

[Brief explanation of drawings]

Fig. 1 is a plan view showing an embodiment of the inductance element manufacturing method according to the present invention, with the upper mold part omitted, Fig. 2 is a front view of the same, and Fig. 3 is a transfer of the ferrite bead core to a fixed position. FIG. 4 is a side sectional view showing the upper mold and lower mold, FIG. FIG. 7 is a sectional view of a main part showing the taping connection process of a single inductance element, and FIG. 3 is a plan view showing a series of inductance elements. 3... Ferrite bead core, 4... Base, 7...
・Core push rod, 11... Upper mold, 12... Lower mold,
14... Core holding member, 17... Lead wire, 19...
... Lead wire holding member, 20... Lead wire holder is a member,
21.22... Crushing mold member, 23... Locking part,
31...Cutter, 32...Electronic component unit, 33.
...transfer arm, words...taping drum, 38.
... Mounting tape, 40... Adhesive tape, 50... Inductance element series.

Claims (1)

[Claims] 1 After temporarily fixing the ferrite bead core 3 supplied from the parts feeder at the positioning position fitted in the positioning groove 5 on the transfer path 2,
A continuous lead wire 17 is inserted through the die 16, and the continuous lead wire 17 is caulked by the upper mold 11 and the lower mold 12 at both ends of the ferrite bead core 3 to form a locking portion 23. Then, the continuous lead wire 17 is cut to a certain length by a cutter 31 to make a single inductance element 32, and tape receiving recesses 35 are formed on both sides.
A first tape 38 is provided in the tape receiving recess 35 of the drum 34, which has a V-groove 37 formed in the inner convex peripheral portion 36 into which the lead wire of the inductance element 32 is fitted, and 32 are sequentially transferred to the drum 34, and a second tape 40 is pasted onto the first tape 35 from above the lead wire of the inductance element unit 32 located on the first tape 38, thereby removing the inductance element unit. A method for manufacturing an inductance element, characterized in that 32 lead wires are connected at predetermined intervals.