JPH043437A - Lead frame storage magazine - Google Patents

Abstract

PURPOSE:To achieve storage without damaging or deforming lead-frame-shaped electronic parts which are stored in piles by providing a flat-plate-shaped movable bottom plate with mechanical sucking or electromagnetic chuck escape which is a lead frame take-out part. CONSTITUTION:A stopper part 3 of a flat-plate-shaped movable bottom plate 2 which is made of metal or resin moving up and down within a lead-frame- storage magazine 1 supports a lead frame 5 which is stored on a protrusion 4 within the lead frame storage magazine in piles by the protrusion. Also, this magazine has a mechanical or an attraction chuck escape part 6 which is a take-out part of a device where this magazine is used.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a lead frame storage magazine for stacking and storing electronic components in the form of lead frames.

[Conventional technology]

Conventionally, this type of lead frame storage magazine has been made of metal or resin and has a protrusion 4 on the inner surface of the bottom for holding the lead frame, as shown in FIGS. 4 and 5.

[Problem to be solved by the invention]

If the protrusion on the inner surface of the bottom of the conventional lead frame storage magazine described above is long, it may come into contact with the electronic components 5 in the form of lead frames that are stacked and stored, and the protrusion may rub against the electronic component due to vibrations generated during transportation, causing scratches on the contact surface. wear.

Furthermore, if the protrusions on the inner surface of the bottom are short, the protrusions will come into contact with the metal frame portions located on both sides of the electronic component of the lead frame.

This metal frame is usually made to have a thickness of about 0.2 mm.

When a large number of lead frame electronic components are stored in a magazine, if the magazine is placed with its protruding bottom facing down, the entire load of the internal lead frame will be applied to the metal frame of the lead frame located at the bottom. .

As mentioned above, since this metal frame is thin, it cannot withstand the load of all the lead frames stacked on top, resulting in plastic deformation.

[Differences between the invention and the prior art]

The present invention differs from the conventional lead frame magazine described above in that it supports electronic components in the form of lead frames that are stacked and stored, and has a flat movable bottom plate that freely moves within the cylindrical interior space.

[Means to solve the problem]

The lead frame storage magazine of the present invention includes a part of the stopper that supports electronic components in the form of lead frames that are stacked and stored, and a relief part of the mechanical, suction or electromagnetic chuck that is the part for taking out the lead frame of the device that uses the magazine. It has a flat movable bottom plate.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a longitudinal section of an embodiment of the present invention, and FIG. 2 is a bottom view.

A stopper portion 3 of a flat movable bottom plate 2 made of metal or resin that moves up and down inside the lead frame storage magazine l is attached to a protrusion 4 inside the lead frame storage magazine.
It supports the lead frame 5 stacked and stored on top of it.

The magazine also has a relief part 6 for a mechanism or a suction chuck, which is an ejection part of the device in which the magazine is used.

FIG. 3 is a bottom view of another embodiment of the present invention, in which the lead frame storage magazine has a mechanism similar to that of embodiment 1, and the flat movable bottom plate is made of a non-magnetic material, so that the magazine can be used easily. The lead frame can be stored without being attracted to the electromagnetic chuck of the device.

〔Effect of the invention〕

As explained above, the present invention provides a flat movable bottom plate that freely moves in the cylindrical interior space of a lead frame storage magazine and has a recess for a mechanical, suction or electromagnetic chuck that is a lead frame ejecting part of a device in which the magazine is used. This has the effect that lead frame-shaped electronic components stacked and stored can be stored without being damaged or deformed.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of a lead frame storage magazine of the present invention, FIGS. 2 and 3 are bottom views, and FIG. 4 is a bottom view. FIG. 5 is a longitudinal sectional view of a conventional lead frame storage magazine. 1...Lead frame magazine, 2...
Flat movable bottom plate, 3... Part of stopper, 4...
...Protrusion, 5...Electronic component in lead frame state, 6...Escape part, Agent: Susumu Uchihara f\l [! 1 $4Y; IJ Bud 2 Fungus Bud 3W! 1

Claims (1)

[Claims] In a lead frame storage magazine whose outer shell is made of metal or resin and has a rectangular cross-section, one end of the cylinder is open and the other end is partially closed and stores electronic components in the form of lead frames stacked inside. , a lead frame storage magazine characterized by having a flat movable bottom plate that moves freely in a cylindrical inner space and has a recess for a mechanical/adsorption or electromagnetic chuck that is a lead frame retrieval part of a device in which the magazine is used. .