JPS6351924B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to an apparatus for arranging a plurality of leads at a constant pitch.

BACKGROUND TECHNOLOGY Electronic components, such as glass-sealed DHD diodes, in which leads are led out from the component body, have a hole in which a lead insertion hole 2 is connected concentrically to the bottom surface 1a of a glass sleeve insertion hole 1, as shown in FIG. It is manufactured using a lower jig 3 in which holes are formed at predetermined intervals in the direction, and an upper jig 5 in which lead insertion holes 4 are formed in positions corresponding to the glass sleeve insertion holes 1 in the lower jig 3. That is, as shown in FIG. 2, a glass sleeve 6 is stored in the glass sleeve insertion hole 1 of the lower jig 3, one slag lead 7 and a diode pellet 8 are sequentially stored in the glass sleeve 6. The slag lead 9 is placed on top of the upper jig 1 containing the slag lead 9, and the slag lead 9 is dropped onto the pellet 8 in the sleeve 6.
In this state, the inner circumferential surface of the sleeve 6 and the outer circumferential surfaces of the slug parts of the slug leads 7 and 9 are welded and hermetically sealed to form a diode 10 as shown in FIG.
I am getting .

By the way, the leads 7 to the upper and lower jigs 3 and 5,
9 is inserted by transferring the leads that have been aligned in advance to a lead alignment jig, but the work of aligning the leads to the lead alignment jig is complicated, and if done manually, it is time consuming and may cause lead bending. There was a problem.

In addition, we use a linear feeder with parallel grooves on the conveying surface corresponding to one row of holes in the lead arrangement jig, and when the leads are accommodated in one row of holes in the lead arrangement jig, the jig is moved one row. There is also an arrangement device that stores the leads in the holes for the next row, but it is noisy and
If the lead feeding speed is increased to shorten the insertion time, the leads may bounce out of the groove or two leads may be fed into one hole, making it difficult to shorten the insertion time and There have been problems such as peeling or foreign matter adhering to the sealing area with the glass, which may result in poor sealing with the glass.

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above drawbacks and provides a lead array device that eliminates the above drawbacks.

The present invention is characterized by a magnetic box that holds a plurality of leads between a pair of magnetic plates arranged oppositely at a predetermined interval, and a guide that is inserted into the magnetic box and moves to move the leads downward to the front part. The retrieval jig includes a retrieval jig having a recessed groove formed on the lower surface for storing the leads at a regular pitch, and a magnet disposed at the bottom of the recessed groove for holding the lead in the recessed groove.

With the above configuration, the present invention has the following effects.

1. A plurality of leads can be taken out all at once at a constant pitch, preventing them from falling off or taking out multiple leads.

2 There is no noise at all.

3 There is no bending of the lead, peeling of the lead outer skin, or adhesion of foreign matter.

4 High speed is possible.

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIGS. 4 to 7. In the figure, 11a and 11b are a pair of magnet plates 12a and 12 arranged oppositely at a predetermined interval.
A pair of guide plates b made of a non-magnetic material are arranged in parallel inside the magnet plates 11a and 11b, and constitute the magnetic box 13. Reference numeral 14 denotes a lead extraction jig, and its front end 14a has a tapered surface slanted toward the lower surface 14b to form a guide 14c. Further, grooves 14d are formed on the lower surface 14b to accommodate the leads at a constant pitch, and a magnet 15 is disposed at the center of the bottom of the grooves 14d to attract and hold the leads in the grooves 14d. 16a and 16b are stoppers that lock the leads protruding on both sides of the lead extraction jig 14 and separate the leads from the extraction jig 14; 17 are stoppers below 16a and 16b that guide the leads, change their posture, and move the leads downward; The shutter is shown to be housed in the hole 19 of the lead arrangement jig 18 placed in the figure.

The lead extraction jig 14 moves approximately horizontally within the magnetic box 13 and stops between the stoppers 16a and 16b, as shown by the two-dot chain line in FIG. retreat,
Further, it descends into the magnetic box 13 and repeats the above operation.

The operation of this device will be explained below. First, the lead extraction jig 14 is inserted into the magnetic box 13 and moved approximately horizontally to the outside of the magnetic box 13. At this time, as shown in FIG.
4. The leads 20a on the front side move toward the lower surface 14b of the jig along the guide 14c, increasing the lead density in this portion. Since the ends of each lead have the same polarity, they repel each other, but as the extraction jig 14 moves forward, the leads relatively move toward the rear of the jig. Then, the lead 20b is drawn into the groove 14d by the magnet 15 in the jig 14. When a plurality of leads 20c and 20d enter the same groove 14d, they repel each other and move along the tapered wall of the groove 14d to the next groove 14'd, where they are attracted and held by the magnet 15. Concave groove 14 in which leads 20b and 20c are already housed
Leads 20d outside d and 14'd are connected to each lead 2.
Since the corresponding parts of 0b, 20c, and 20d have the same magnetic polarity, they repel each other and press each lead 20b, 20c against the groove 14d, 14'd, and the lead 20d moves toward the rear of the jig 14 along the bottom surface 14b. However, if there is an empty groove 14d'', it is held there.

Therefore, the guide 14c moves the plurality of leads 20 with high density along the bottom surface 14b, so that the leads 20 are reliably moved into the grooves 14d, 14d', 14d''...
When one lead is held in one groove, other leads are repelled, and multiple leads are prevented from entering one groove.

Further, as shown in FIG. 9, the lead 20 in the groove 14d receives the magnetic field between the magnet plates 11a and 11b, the magnetic field between the magnet plate 11a and the magnet 15, and the magnet plate 11b and the magnet 15.
Since the magnetic field between the leads acts, the reeds are held with a force stronger than the attraction force of the magnets 15 alone, and the leads are prevented from falling out.

When the jig 14, which has attracted the leads 20 at a constant pitch in this way, comes out of the magnetic box 13, the leads inside the groove 14d are repelled from the leads outside the groove 14d and are pressed into the groove 14d, so the magnetic plate It is taken out from the magnetic box 13 while being housed in the jig 14 without being attracted to the magnets 11a and 11b.

The jig 14, which has attracted the leads 20 at a constant pitch in this manner, comes out of the magnetic box 13 and moves between the stoppers 16a and 16b. Then, at this position, the lead 20 raised and projected from the jig 14 is engaged with the stoppers 16a and 16b, and the lead 20 is dropped.

The fallen leads 20 are guided and stored in the lead arrangement jig 18 by the shooter 17.

After that, move the lead array jig 18 by one row,
Position the new hole 19 below the shutter 17,
The lead extraction jig 14 is raised and retreated onto the magnetic box 13, and further inserted into the magnetic box 13, and the above operation is repeated.

As a result, a plurality of leads can be taken out all at once at a constant pitch, and there is no problem of a lead falling out of the groove or a plurality of leads being supplied into one groove.

Furthermore, there is no need for a vibration source such as a straight feeder, and there is no noise at all.

Furthermore, since the leads are spaced apart from each other within the magnetic box, no external force is applied to the leads, thereby preventing bending of the leads, peeling of the outer skin of the leads, and even adhesion of foreign matter.

Further, the moving speed of the extraction jig can be increased, and high speed can be achieved.

By making the wall surface on the rear end side of the recessed groove 14d of the extraction jig 14 substantially orthogonal to the moving direction of the jig, the component force along the wall surface of the reed is reduced when the jig is moved, and the reed can be moved at higher speed. However, if multiple leads enter the groove, it becomes difficult to remove the excess leads, and the side cross-sectional shape of the groove prevents the movement of the jig. Determined in relation to speed. In addition, if the depth of the groove is shallow, other leads may collide with the lead attracted in the groove, or the lead end and the guide plates 12a, 12b may collide with each other.
This is determined in relation to the lead pitch, because vibration is applied to the reeds due to contact with the reeds, making the reeds more likely to fall out of the recessed grooves, and the deeper the recesses, the more likely a plurality of reeds will be attracted and held within the recessed grooves.

[Brief explanation of drawings]

FIG. 1 is a partial cross-sectional perspective view of an upper and lower lead arrangement jig, FIG. 2 is a side sectional view illustrating the manufacture of electronic components using the jig shown in FIG. 1, and FIG. 3 is a side view of the electronic component. 4 is a perspective view of the device according to the present invention, FIG. 5 is a side sectional view of the extraction jig, FIG. 6 is a bottom view of the jig in FIG. Fig. 8 is a side sectional view of the main part of the jig to explain the operation of the jig in the magnetic box, Fig. 9 is a sectional view taken along line BB in Fig. 8, and Fig. 10 is a modification of the groove of the jig. FIG. 11a, 11b... Magnet plate, 13... Magnet box, 14... Removal jig, 14a... Front part, 14b
...Bottom surface, 14c...Guide, 14d...Concave groove, 15...
Magnet, 20...lead.

Claims (1)

[Claims] 1. A magnetic box that holds a plurality of leads between a pair of magnetic plates arranged oppositely at a predetermined interval, and a guide that is inserted into the magnetic box and moves to move the leads downward at the front part, and a guide that moves the leads downward. 1. A lead arraying device comprising: a recessed groove in which the leads are housed at a fixed pitch; and a retrieval jig in which a magnet is arranged at the bottom of the recessed groove to hold the leads in the recessed groove.