JPS6140021A - Pellet supplying device with leads - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an apparatus for feeding pellets with leads, and more particularly to an apparatus capable of taking out and feeding only pellets without bent leads.

An example of a conventional electronic component, such as a chip-type tantalum capacitor, is shown in FIG. In the figure, t is a pellet with a single lead, and a tantalum lead 3 is led out coaxially from one end of the pellet body 2 of a rod-shaped tantalum capacitor. 4a is a lead that is electrically connected to the outer periphery of the pellet body 2 and serves as a cathode; 4b is a lead that is electrically connected to the beam 3 and serves as an anode; 5 is a lead that is the main part of the pellet (including the pellet) made of a resin material; The resin exterior part is shown.

One electronic component having such a structure is, for example, as shown in FIG.
Using the integrated lead frame 7, the leads 3 are welded to the pull-out lead portion 4b' of the lead frame 9, and the pellet body 2 is attached to '!'. They are fixed to the first lead 41 by soldering or conductive adhesive, and are manufactured by resin molding in multiple sets at once.

Here, the pellets supplied on the lead 71/- 1)
must be aligned in a certain direction.

FIG. 9 shows a conventionally used pellet feeding device, which has a rotating shaft 9 on the side wall 81d in the figure, a frame 8a on the periphery, and a recess 8 on the top surface for housing the pellet body 2.
The recess 8b is opened and closed on the lower surface of the arrangement jig 8 using a shutter provided with a rotating hole 10a and a through hole 1O-t for inserting the pellet 1.

This operation will be explained below. First, the rotating shaft 8 is rotated clockwise in the figure to move the pellets (1) in the pellet reservoir 8c on the arrangement jig 8. Then, while the jig 8 is vibrated in the axial direction of the rotating shaft 9, the jig 8 is swung around the rotating shaft 9 to disperse the sehelet 1.

As a result, the pellet 1 is accommodated in the recess 8b and held by vacuum suction. At this time, from the lead 2 side, the recess 8b
Pellets that have entered the interior are incompletely vacuum-adsorbed.

Therefore, the rotating shaft 9 is greatly swung to the pellet reservoir 8c ([llC) to move the pellets that are not adsorbed to the recess abK and the pellets that are in an incompletely adsorbed state to the pellet reservoir 8C.

Then, keeping the jig 8 horizontal and opening the shutter 10, the recess 8
The pellet 1 in b is dropped downward through the through hole 10b. This pellet 1 (fi) is cooled so that all directions are in one direction, and can be supplied as is onto a lead frame.

In addition to directly supplying the pellets from the lFi jig 8 through a pipe chute (not shown), once supplying them to an alignment jig (not shown), and then supplying the pellets from this alignment jig to the lead frame, It can be supplied onto the lead frame 7 by means.

Problems to be Solved by the Invention Incidentally, while a plurality of pellets are moved on the arrangement jig 8 by an external force, the leads 3 may be bent. '
, 4b' may be incomplete, and if the tantalum lead 3 is inserted into powdered tantalum like a tantalum capacitor and the pellet body 2 is compacted by τ, when the lead 30 is straightened, the lead 3 and the pellet body will be However, the device shown in Figure 9 can detect lead bends and remove them from the pellets and lead frame after arrangement. The previous method was to visually inspect and remove the pellets of lead 3, but the work was extremely complicated and
Because the wires are thin, there is a problem in that the amount of lead bending varies greatly depending on the individual, and an improvement has been desired.

Means for Solving the Problems The present invention has been made in view of the above-mentioned problems, and includes: - an arrangement jig in which a plurality of recesses for accommodating pellet bodies are formed on the main surface and supported in a reversible manner; and an arrangement jig. A sorting jig that is supported on one main surface so as to be able to approach and separate and be reversible in conjunction with the arranging jig and has a hole that is coaxial with the recess of the arranging jig and has a smaller diameter than the recess; The above-mentioned problem has been solved by using a feeding device characterized by including a suction device for taking out pellets by taking out pellets by taking out only pellets without bent leads.

The feeding device according to the present invention uses a sorting jig to completely bend the lead of pellets whose lead bend exceeds the standard, and also allows pellets with normal leads to be suspended and supported by the sorting jig. It is something to take out.

EXAMPLE A feeding device according to the present invention will be explained below with reference to FIGS. 1 and 2. In the figure, a rotating shaft 12 connected to a vibration device (not shown) that vibrates in the direction of the side wall f-axis using a 1IFi arrangement jig.
A frame 11a is provided on the periphery, and a pellet body 2 is provided on the upper surface.
A recess 11 that accommodates the vacuum skin hole 11b at the bottom.
ctt-formed, and a pellet reservoir 11 (l) is provided on one frame side along the rotating shaft 12.
Two guide rods 13 protrude from each frame in the axial direction, and an air cylinder 14 is inserted between the guide rods 13 and 13.
64) Vinton rod 14a passes through it. Reference numeral 15 denotes a sorting jig that is guided by guide rods l'3 and l3 and connected to the end of the piston rod 14a, and has a hole 15a bored coaxially with the recess 11c on the opposing surface of the arrangement jig 11. . The diameter of this hole 15a is set to a bending tolerance of the lead 30, for example, three times the diameter of the lead 3. Reference numeral 16 denotes a suction device having a suction hole 16a on the lower surface, and the concave portion 11c of the arrangement jig 11 is directed downward by the rotation shaft 12, and the sorting jig 1 is
5 away from the arrangement jig 11,
It moves vertically and horizontally so that it can be inserted between the sorting jig 15 and the sorting jig 15. This suction hole 16a is arranged coaxially with the hole 15a of the sorting jig 15.

The operation of this device will be explained below with reference to FIGS. 3 to 6. First, as shown in FIG. 3, the pellet reservoir l, +a*[!
Several times to several tens of times as many pellets 1' as the number of parts 11c' are supplied, and while the sorting jig 15 is raised by the cylinder 14, the rotary shaft 12 is rotated, and the pellets l in the pellet reservoir lld are transferred to the recess. :Move to L10 and rotate axis 12V
r around the axis 12 while applying vibration in the r-axis direction (swinging at a constant angle, spreading the pellet 1 onto the recess llC and storing the pellet 1 in the recess llC; then τ recess 11 aVr pellets)
1 by vacuum suction, and the arrangement jig 11 is placed in the pellet pool 11 (
Pellets and recesses 11 that are tilted towards the l side and have incomplete adsorption
Return the pellets between c to the pellet reservoir lld. Then, as shown in FIG. 4, the cylinder 14 is operated to remove the sorting jig 1.
Lower 5. Since the hole 15a of the sorting jig 15 is larger than the diameter of the lead 3, if the lead is not bent, the lead 3II'i is inserted into the hole 15a.
If the diameter is larger than the diameter of the lead 3, the lead 3 will be bent more by the sorting jig 15Vr. Further, as shown in FIG. 5, rotate the arrangement jig 11' to the pellet reservoir 15d side, and
5 and the arrangement jig 11 are turned upside down from the upright position,
The cylinder 14 is operated to separate the sorting jig 15 from the arrangement jig 11. As a result, pellets without bent leads are supported by the sorting jig 15ff and lead 3, but pellets with bent leads are not supported by the sorting jig 15 and fall downward. And 6th = As shown in the figure, the sorting jig i15 is placed in a horizontal state and the sorting jig 15 is lowered by the cylinder 14. As a result, pellets without lead bending are suspended and supported. In this state, the adsorption device 16
can be inserted between the arranging jig 11 and the sorting jig 15 to adsorb the pellets, take them out, and supply them to the next process or the arranging jig). Thereafter, the above operation can be repeated to take out pellets with no lead bends.

Effects of the Invention - As described above, the apparatus according to the present invention can take out only pellets without lead bending within the range allowed by the holes of the sorting jig.

[Brief explanation of the drawing]

1 and 2 show a leaded pellet feeding apparatus according to the present invention, with FIG. 1 being a perspective view and FIG. 2 being a side sectional view. 3 to 6 are side cross-sectional views of main parts showing the operation of the apparatus shown in FIG. 1, FIG. 7 is a side cross-sectional view showing one part of the electronic components, and FIG. FIG. 9 is a perspective view showing an example of the method, and FIG. 9 is a side sectional view of a pellet feeding device. l...Pellet with lead, 2...Pellet body, 3...Lead, l...Arranging jig. 1'lc...Concavity, 15...-Sorting jig, 15a...Hole, 16...-Adsorption device. Auto) “- Figure 4, Section 5v!J Auto

Claims (1)

[Claims] An arrangement jig that has a plurality of recesses for accommodating pellet bodies on one main surface and is supported in a reversible manner, and an arrangement jig that is supported on one main surface of the arrangement jig so as to be able to come into contact with and leave the pellets and to be reversible in conjunction with the arrangement jig. It includes a sorting jig having a hole that is coaxial with the recess of the jig and has a smaller diameter than the recess, and a suction device that sucks and takes out the pellets on the sorting jig, and leads the pellet body of the leaded pellet to the recess of the arrangement jig. The sorting jig is placed close to the arranging jig so that the lead tip is inserted into the hole, and the pellet body is inserted into the facing surface of the arranging jig and the sorting jig with an interval large enough to allow In this state, the arrangement jig and the sorting jig are inverted, and pellets with bent leads are removed from the sorting jig, and only pellets with normal leads remain on the sorting jig, and the pellets are taken out using a suction device. A pellet feeding device with a lead, which is characterized by: