JPH08155751A - Bulk cassette for electronic chip - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent dust in the atmosphere from entering the interior when the bulk cassette for electronic component chips is not used. A bulk cassette d for electronic component chips has an engaged portion i of a bulk case g accommodating a large number of chip components.
Has an engaging portion 1 for detachably mounting the chip component and delivers the chip component supplied from the bulk case g mounted in the engaging portion l to the supply position of the component mounting machine a. A dustproof cap 1 that is detachably attached to the engaging portion 1 of the bulk cassette d is provided, and the cap 1 is a lid body for preventing the chip components supplied into the bulk cassette d from popping out. To double as.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a novel bulk cassette for electronic component chips. Specifically, in a bulk cassette for electronic component chips that is used by detachably mounting a bulk case containing a large number of chip components, by attaching a dustproof lid to the connection part with the bulk case, An object of the present invention is to provide a novel bulk cassette for electronic component chips, which can prevent dust in the atmosphere from entering the bulk cassette during use.

[0002]

2. Description of the Related Art Chip parts (electronic parts) on a printed circuit board
There is known a high-speed chip component mounting machine for mounting.

5 and 6 schematically show the overall structure of a high-speed chip component mounter a, which is provided with a component supply part b at a substantially central portion.

The component supply section b has a role of supplying chip components in a bulk state (state not packed) to the printed circuit board.

Reference numeral c denotes a moving base of the component supply section b, and a large number of bulk cassettes d, d, ... Are arranged on the moving base c as supply units along the moving direction of the moving base c. The bulk cassette d is a known one, and as shown in FIG. 6, when it is attached to the moving base c, it is placed on the moving base c and
The clamp claw f provided at the rear end of the movable base c is engaged with the rear end of the movable base c by operating the clamp lever e.

Reference numeral g denotes a bulk case, and a large number of chip parts (not shown) are housed in the bulk case g. As shown in FIG. 8, the bulk case g includes a thin box-shaped storage portion h and an engaged portion i for connecting the bulk cassette d, and the chip component is stored in the storage portion h. An opening j for supplying the chip component to the bulk cassette d is formed in the engaged portion i. The opening j is provided with a shutter k slidably provided in the storage h.
It is designed to be opened and closed by.

Reference numerals ia and ia denote engaging ridges formed on the side surfaces of the engaged portion i (only one of them is shown in FIG. 8).
It is provided for engagement with the bulk cassette d.

That is, as shown in FIG. 7, the bulk cassette d is formed with an engaging portion 1 corresponding to the engaged portion i of the bulk case g, and the inner surface of the engaging portion 1 is formed. Engagement recesses l engaged with the engagement ridges ia of the bulk case g
a and la are formed. The bulk case g is attached to the bulk cassette d in a tilted state by engaging the engaged portion i of the bulk case g with the engaging portion l of the bulk cassette d, and then the shutter k is slid to open the opening j. By doing so, the bulk case g is set in the bulk cassette d.

When the chip part t is taken out from the bulk case g, when the feed lever m of the bulk cassette d is pressed downward by a pressing portion (not shown), positive pressure air is supplied from the positive pressure air supply hole n, and the chip is thereby supplied. The component is supplied to the component supply part p near the front end through the chute o (see FIGS. 7 and 9).

The chip components supplied to the component supply section p are taken out by the suction nozzles q and q (see FIG. 6) and mounted on a printed circuit board (not shown).

[0011]

By the way, in the above-mentioned conventional bulk cassette d, when the bulk case g is removed and stored as it is while the bulk cassette d is not used, dust in the atmosphere is bulky. There is a problem that it enters inside through the opening of the engaging portion 1 of the cassette d.

That is, the dust in the atmosphere penetrates into the chute o through the opening lb of the engaging portion l and enters the chute o near the entrance o1 or near the exit o2 as shown by an arrow A in FIG. As a result, the chips become clogged, which causes clogging of the chip component t, and causes a chip component supply error.

[0013]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides an engaging portion to which a engaged portion of a bulk case accommodating a large number of chip parts is detachably mounted. In a bulk cassette for electronic component chips, which has a chip component supplied from a bulk case mounted in the engaging portion and is delivered to a supply position of a component mounting machine, is attached to the engaging portion and is dust-proof. It is provided with a lid.

[0014]

Therefore, according to the present invention, when the bulk cassette for electronic component chips is not used, the dustproof lid is attached to the engaging portion so that dust in the atmosphere can be stored inside the bulk cassette for electronic component chips. Can be prevented from entering.

[0015]

The details of the bulk cassette for electronic component chips of the present invention will be described below with reference to the illustrated embodiments. In the present embodiment, the shape of the bulk cassette and the bulk case,
Since the structure and the like are the same as those in the above-mentioned conventional example, the same portions are denoted by the same reference numerals as those in the above-mentioned conventional example and the description thereof is omitted.

As described above, when the bulk cassette g is left unused for a long time when the bulk cassette d is not used, dust in the atmosphere is trapped in the chute o and its inlet o1. In this case, the chips accumulate and become a lump, so that when the chip cassette is supplied by the bulk cassette d during the operation of the component mounting machine a, the chip components are clogged at the entrance o1 of the chute o.

Therefore, in the present invention, a dustproof cap for engaging with the engaging portion 1 of the bulk cassette d and closing the opening lb thereof is provided.

FIGS. 1 to 3 show the shape of the cap 1.

The cap 1 is formed of a material having excellent wear resistance and suitable for weight reduction, and for example, an aluminum alloy (A5052) subjected to alumite treatment is used. The cap 1 has an engaged portion 2 and a grip portion 3 that are integrally formed, and the outer shape of the engaged portion 2 is a bulk case so that it can engage with the engaging portion 1 of the bulk cassette d. It has the same outer shape as the engaged portion i of g. That is, the engaged portion 2 has a wide portion 2a when viewed in plan.
And a portion 2b which is continuous with the portion 2b and protrudes in a direction opposite to the grip portion 3, and engaging protrusions 4 and 4 are formed on both side surfaces of the portion 2b.

As shown in the enlarged circle in FIG. 4, the engaging portion 1 of the bulk cassette d has a substantially C-shaped cross section and engaging recesses la and la are formed. , The cap 1 is moved in the direction shown by the one-dot chain line arrow in FIG.
The cap 1 can be attached to the bulk cassette d by inserting the engaged portion 2 into the engaging portion l so as to engage with a and la, and coupling the both.

The shape of the engaged portion 2 of the cap 1 is in conformity with the same standard as the engaged portion i of the bulk case g (EIAJ standard (Japan Electronic Machinery Industry Standard)), and its size is also standard. Is designed based on. Therefore, by standardizing the standard of the engaged portion 2 of the cap 1, the compatibility can be guaranteed, and the incompatibility problem caused by the difference of manufacturers, the mounting machine, the type of bulk cassette, etc. Can be solved.

The grip portion 3 of the cap 1 is formed in a substantially flat plate shape, and its width in plan view is substantially equal to the width of the portion 2b of the engaging portion 2. In this way, the grip portion 3 becomes the engaged portion 2
The reason why the width is narrower than that of the portion 2a is that the shape needs to be easy to grasp in consideration of the frequency of use. Further, as shown in FIG. 3, a circular hole 5 is formed in the grip portion 3, which is also the result of considering the ease of gripping.

In order to manage the bulk cassette d with the bulk case g removed for a long time, the engaged portion 2 of the cap 1 is fitted into the engaging portion 1 of the bulk cassette d. If the lid is closed with
Since the opening lb is closed, dust in the atmosphere does not enter the bulk cassette d. Therefore, when the bulk cassette d is used next time, it is possible to prevent dust from accumulating inside the bulk cassette d, clogging the chip components, and causing a component supply error.

By the way, the cap 1 has a role of preventing the chip parts from popping out, in addition to preventing dust.

As described above, the chip parts t are delivered in the state of being enclosed in the bulk case g, but the number of chip parts used in the production of the printed circuit board which is the manufacturing object is very small. In this case, the chip parts may be delivered in a vinyl bag or the like without being enclosed in the bulk case g.

In such a case, if there is a spare bulk case g, the chip parts in the vinyl bag are transferred to the spare bulk case g and enclosed, and the bulk case g is placed in the bulk cassette d. You can wear it,
If the spare bulk case g is not found or is not found nearby, the chip components are manually removed from the vinyl bag and supplied into the bulk cassette d. In this case, since the bulk case g is not attached to the bulk cassette d, the opening lb of the engaging portion 1 of the bulk cassette d is not closed, and the bulk cassette d is attached when the bulk cassette d is attached to the attachment machine a. When the vibration during the operation of the machine a is transmitted to the bulk cassette d, the chip components inside the bulk cassette d may jump out from the opening lb of the engaging portion l.

If such a jump-out of a component occurs, it may lead to damage to the component, and if the jumped-out component falls onto the printed circuit board, it may cause a defective printed circuit board.

Therefore, by attaching the cap 1 to the engaging portion 1 of the bulk cassette d and covering it with a lid, it is possible to prevent the chip parts from popping out.

[0029]

As is clear from the above description, according to the first aspect of the invention, when the bulk cassette for electronic component chips is not used, the dustproof lid is attached to the engaging portion thereof. This makes it possible to prevent dust in the atmosphere from entering the inside from the engaging portion. Therefore, the supply of chip parts is hindered by the lump of dust,
It is possible to prevent a supply error from occurring.

According to the second aspect of the present invention, a dustproof lid for the bulk cassette and a lid for preventing the chip components housed inside the bulk cassette from popping out to the outside are provided. By also being used in common, it is possible to prevent loss of chip parts and defects of the printed circuit board.

According to the third aspect of the present invention, the outer shape and size of the engaged portion of the lid engaged with the engaging portion of the bulk cassette are the same as those of the engaged portion of the bulk case. By adopting the outer shape and the size, the compatibility of the lid can be guaranteed, and the lid can be used regardless of the type of the component mounting machine or the type of the bulk cassette.

According to the fourth and fifth aspects of the present invention, the grip portion of the lid body is formed in a plate shape having a narrower width than the other portions, or a hole is formed in the grip portion of the lid body. By
The lid can be easily grasped and its handleability can be improved.

It should be noted that the specific shapes and structures shown in the above embodiments are merely examples for embodying the present invention, and the technical scope of the present invention is limitedly interpreted by these. It is not something that will be done. That is, the shape and the like of the grip portion of the lid body show one form in consideration of workability, and it goes without saying that the embodiment without departing from the spirit of the present invention is included in the technical scope of the present invention. Is.

[Brief description of drawings]

1 is a perspective view showing a cap of a bulk cassette for an electronic component chip according to the present invention, together with FIGS. 2 to 4. FIG.

FIG. 2 is a plan view.

FIG. 3 is a side view.

FIG. 4 is a perspective view showing attachment of a cap to a bulk cassette.

FIG. 5 is a schematic view of the component mounting machine together with FIG. 6, and is a perspective view.

FIG. 6 is a side view.

FIG. 7 is a perspective view showing attachment of a bulk cassette and a bulk case to the bulk cassette.

FIG. 8 is a perspective view showing a bulk case.

FIG. 9 is a cross-sectional view for explaining a conventional problem.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cap (lid body) 2 Engagement part 3 Grip part 5 Circular hole (hole) a Component mounting machine d Electronic component chip bulk cassette g Bulk case l Engagement part t Chip component

Claims (5)

[Claims] 1. An engaging portion to which an engaged portion of a bulk case accommodating a large number of chip parts is detachably mounted,
In a bulk cassette for electronic component chips for delivering a chip component supplied from a bulk case mounted on the engaging portion to a supply position of a component mounting machine, a dustproof lid detachably attached to the engaging portion. A bulk cassette for electronic component chips, which is provided with a body. 2. The electronic component chip bulk cassette according to claim 1, wherein the dustproof lid also serves as a lid for preventing the chip components supplied into the bulk cassette from popping out. A bulk cassette for electronic component chips. 3. The bulk cassette for electronic component chips according to claim 1 or 2, wherein the outer shape and size of the engaged portion of the lid body that is engaged with the engaging portion is the same as that of the bulk case. A bulk cassette for an electronic component chip, which has the same external shape and size as the engaged portion. 4. The electronic component chip bulk cassette according to claim 1, wherein the grip portion of the lid body is formed in a plate shape having a narrower width than other portions. Characteristic bulk cassette for electronic chip. 5. The bulk cassette for electronic component chips according to claim 1, claim 2, claim 3 or claim 4, wherein a hole is formed in the grip portion of the lid body. Bulk cassette.