JPH0517873Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a lead frame storage device, and in particular, a device for arranging a plurality of lead frames to which a plurality of electronic component elements are bonded in parallel along a pallet surface. This invention relates to a storage device for lead frames that simultaneously stores a plurality of lead frames in an upright state in a plurality of grooves on the top and bottom of a magazine used for automatic assembly from an installed state.

[Conventional technology]

Conventionally, in order to store this type of lead frame in a magazine in an upright position, the operator specified or used tweezers to store the magazine with grooves arranged vertically and oppositely at intervals slightly wider than the width of the lead frame. They were storing one board at a time.

[Problem that the invention attempts to solve]

In the conventional storage method described above, when the operator narrows the lead frame with his fingertips or tweezers, the lead frame is thin, for example, 0.1 ^t , so it bends easily and is difficult to store. Since no unreasonable load is applied to the elements of electronic components bonded to the surface, which may cause deterioration,
It takes a lot of time to store the items in one magazine, and the work is continued for a long time every day, which puts a lot of burden on the specifications and causes significant fatigue on the part of the workers.

Therefore, for the purpose of improving the work content and reducing the number of work steps, there has been a need for a lead frame storage device that can easily store the lead frame in the groove of the magazine.

[Means for solving problems]

An object of the present invention is to provide a lead frame storage device that is highly reliable, has a simple structure, and is easy to operate.

According to the present invention, in a lead frame storage device that simultaneously uprightly stores a plurality of lead frames with electronic component elements arranged in parallel at predetermined intervals on a flat pallet in a magazine via a chute portion, a gap between the pallet and the chute is provided. The insertion part has a plate having an insertion opening wider than the width of the lead frame, and the lower part has a V-shaped cross section and the tip on the upper opening side has a parallel standing shape, and the inside of the parallel standing part is provided. a rotary support shaft fixed along the long axis of the chute portion, and a V-shaped opening cross section of the chute portion gradually narrowing toward the magazine side, and connecting the insertion portion, the chute portion, and the magazine. Thus, a lead frame storage device characterized by a structure in which the leads are tilted on the same plane can be obtained.

〔Example〕

Next, one embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows an embodiment of a lead frame storage device according to the present invention. FIG. 2 shows a lead frame 2 in which both ends of an electronic component element 1 are joined to comb-like tips 2a and 2b, respectively, and the thickness T of the lead frame 2 is about 0.1 mm.

In FIG. 1, the chute 3 is formed by molding a metal plate into a V-shape, and connects one of the V-shaped openings to the lead frame 2.
The end of the wide opening 3b, which is close to the width W of
The other side of the V-shaped opening is fixed to the plate-shaped upper chute base 5 by the thickness T of the lead frame 3.
The end of the narrow open portion 3a that is close to the chute is fixed to a plate-shaped lower chute base 7 by a chute mounting jig 6 in which rod-shaped portions 6a are planted at equal intervals. On the upper chute stand 5, a pallet stand 9 and an insertion plate 10 having an insertion opening 10a for a lead frame 3 with an element are placed on the pallet stand 9 for positioning the pallet 8, which is a rectangular plate with a guide groove 8a. Pins 1 are driven in a raised pattern at intervals slightly wider than the width of 8.
1. The lower chute base 7 is equipped with a slit plate 12 having a slit slightly wider than the thickness T of the lead frame 2. On the top surface of the plate-shaped magazine stand 13, a magazine receiving plate 15 and a magazine 14 are provided for positioning the magazine 14.
The magazine table 13 is provided with pins 16 set up at intervals slightly wider than the width of the magazine table 13, and a slide bearing (not shown) connected to the shaft 17 is provided on the lower surface of the magazine table 13.

The slope of the chute 3 and the magazine 14 is such that both ends of the side plate 18 are connected to two low supports erected on the base 19.
0 and high pillar 21, and low pillar 2
0, one end of the side plate 18 is fixed to a freely rotatable shaft 22 held by a bearing (not shown), and the long hole 18a of the other end of the side plate 18 and the high support 21 are connected.
The elongated hole 21a is fixed with a knob 23 to adjust the slope (for example, 25° to 35°).

FIG. 3 is an enlarged perspective view illustrating the structure of the chute 3. FIG. 4 and 5 are a cross-sectional view taken along line X-X' and a cross-sectional view taken along line Y-Y' in FIG. 3, respectively.

Both ends of a tapered portion 3c having a V-shaped cross-section of the side plate of the wide opening 3b of the chute 3 are bent to provide parallel standing portions 3d at intervals slightly wider than the width W of the lead frame 2. There is. As shown in the cross-sectional view of FIG.
, a round bar made of the same metal as the chute 3), and a rotating support shaft 24 and a slide support shaft 25a, respectively. On the other hand, the narrow opening 3a side of the chute 3 is provided with a slide shaft 25b made of a bar material having a diameter larger than the thickness of the electronic component element 1 on both sides of the inner surface of the tapered portion 3c, as shown in FIG. 5a. As shown in FIG. 5b, the openings at both ends of the tapered portion 3c are as shown in FIG.
The gaps are gradually narrowed until they are slightly wider than the thickness T of the lead frame 2.

FIG. 6 is a plan view showing the positional relationship between the pallet 8, the insertion plate 10, and the chute 3.
An insertion opening 10a having a tapered inclined surface and slightly wider than the width W of the lead frame 2 is provided, and the lead frame 2 passes through the insertion opening 10a from the pallet 8, falls into the chute 3, and is inserted. It shows.

FIG. 7 shows the chute 3, the slit plate 12,
This is a plan view showing the positional relationship of the magazine 14. The lead frame 2 has a gap between the sliding support shafts 25b of opposing bars provided on the inner surface of the chute 3, and a slit 12 that has the insertion angle 12a of the slit plate 12.
a groove 1 having an entry direction 14a for the magazine 14;
4b and is stored in the magazine 14.

FIG. 8 is a perspective view of the magazine 14, with the upper plate 14
Grooves 14b are provided in the same arrangement and at a constant pitch on opposing surfaces of the lower plate 14d and the lower plate 14d.

Next, the operation of a lead frame storage device which is an embodiment of the present invention will be described with reference to the drawings.

The magazine 14 is set on the magazine stand 13 with the storage surface of the magazine 14 facing the slit plate 12. Next, the end surface of the pallet 8 that supplies the lead frame 2 is pressed against the insertion plate 10 on the pallet stand 9, and the pallet 8 is raised in a cantilevered state around the pressed end surface, and is placed in a similar slope to the chute 3. state. (FIG. 1) Lead frames 2 arranged in parallel on an inclined pallet 8 are lowered by gravity, pass through an insertion opening 10a of an insertion plate 10, and are supplied to a chute 3. In the chute 3, as shown in FIG. 4b, the lead frame 2 is moved from its position in the parallel standing portion 3d of the chute 3 in the direction of the arrow by gravity, and the lead frame 2 moves in the direction of the arrow around the rotational support shaft 24, and the fourth
As shown in FIG.
and the inner surface of the chute 3 are not in contact with each other,
It descends through the sloped chute 3 due to gravity. Next, as shown in FIG. 5b, while being held in contact with the inner bottom 3e of the chute 3 and either one of the slide support shafts 25d, the chute 3 is lowered down the tapered portion 3c whose opening side gradually becomes narrower. , passes through the slit 12b of the slit plate 12, and the magazine 14
is stored in. After storage, a button switch (not shown) is pressed, and the magazine 14 is moved to the same groove pitch by a ratchet mechanism and an air cylinder (not shown), and the lead frame 2 is moved to the next lead frame 2.
The storage of the lead frame 2 in the magazine 14 is completed by the repeated operation of moving to the pallet 8 on which the lead frame 2 is placed.

[Effect of idea]

As explained above, according to the present invention, there is provided a lead frame storage device that has a simple structure, can simultaneously store a plurality of lead frames arranged in parallel on a pallet, and contributes to reducing the number of man-hours required for storage work. can get.

[Brief explanation of the drawing]

Fig. 1 is a diagram illustrating an embodiment of the present invention, and Fig. 2 is a perspective view of a lead frame storage device with a magazine and a pallet set, and Fig. 2 is an enlarged view of a lead frame to which electronic component elements are bonded. The perspective view and FIGS. 3 to 5 are diagrams for explaining the chute, and FIG. 3 is the perspective view of the chute, and FIG. 4 a
is a cross-sectional view taken along the line X-X' in FIG. FIG. 5B is a sectional view illustrating the state of movement of the lead frame, FIG. 6 is an enlarged plan view illustrating the state of inserting the lead frame into the chute from the pallet, and FIG. FIG. 8 is an enlarged plan view illustrating the state in which the lead frame is stored in the magazine from the chute, and FIG. 8 is a perspective view of the magazine. 1...Electronic component element, 2...Lead frame,
3...Chute, 3a...Narrow opening, 3b...Wide opening, 3c...Tapered portion, 3d...Parallel standing portion, 3e...Inner bottom, 4...Angle, 5...
Upper chute stand, 6... Mounting jig, 7... Lower chute stand, 8... Pallet, 9... Pallet stand,
10...Insertion plate, 10a...Insertion port, 11...Pin, 12...Slit plate, 12b...Slit,
13...Magazine stand, 14...Magazine, 14b
... Groove, 15 ... Magazine receiving plate, 16 ... Pin, 17 ... Shaft, 18 ... Side plate, 19 ...
... Base, 20 ... Low support, 21 ... High support, 2
2...Shaft, 23...Knob, 24...Rotating spindle, 25...Sliding spindle.

Claims (1)

[Scope of utility model registration request] In a lead frame storage device that simultaneously stores a plurality of lead frames with electronic components arranged in parallel at predetermined intervals on a flat pallet in a magazine via a chute, there is a space between the pallet and the chute that is larger than the width of the lead frame. An insertion part is provided with a plate having a wide insertion opening, the lower part thereof is V-shaped in cross section, and the tip on the upper opening side is provided with a parallel erected shape, and the long axis of the chute part is provided inside the parallel erected part. The V-shaped opening section of the chute portion is gradually narrowed toward the magazine side, and the insertion portion, the chute portion, and the magazine are connected to each other on the same plane. A lead frame storage device featuring an inclined structure.