JPH08213793A - Bulk case - Google Patents

Abstract

PURPOSE: To prevent abrupt opening/closing of a shutter member for closing a part supply aperture for supplying an electronic part to a bulk cassette, in a bulk case which is to be loaded in the bulk cassette for feeding an electronic part to a supply position for a part mounting unit and to supply the electronic part to the bulk cassette. CONSTITUTION: A bulk case 1 supplies an electronic part to a bulk cassette which sequentially feeds an electronic part to a part mounting unit a for mounting the electronic part onto a printed board. In this bulk case 1, a rack 11 as means to be driven is formed at a predetermined position on a shutter member 8 which is slidably guided by a guide groove 6 provided in the bulk case and which opens/closes a part supply aperture 5 of the bulk case. Also, a worm 13 as drive means is formed at a position corresponding to the rack of the bulk case. Thus, by driving the rack using the worm, the aperture is opened/ closed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mounts an electronic component on a bulk cassette for delivering the electronic component to a supply position to a component mounting machine, and supplies the electronic component to the bulk cassette in a bulk case. An object of the present invention is to provide a novel bulk case in which a shutter member for closing a component supply opening for supplying a cassette is prevented from being opened and closed carelessly.

[0002]

2. Description of the Related Art A component mounting machine for mounting electronic components on a printed circuit board is known. This will be briefly described with reference to FIGS.

A component supply unit b is provided in the center of the component mounter a for supplying electronic components in bulk, that is, in an unloaded state, to a printed circuit board. A large number of bulk cassettes d, d, are mounted on the moving base c of the component supply unit b.
Are arranged in the moving direction of the moving base c.

The bulk cassette d is known, and its front end is engaged with the front end of the moving base c, and the clamp claw f provided at its rear end is engaged with the moving base c by operating the clamp lever e. By combining
It is attached to the moving base c.

A large number of electronic parts (not shown) are housed in the bulk case g (see FIG. 8). The bulk case g
Is provided with a thin box-shaped storage portion h and an engagement portion i for connecting the bulk cassette d, the electronic component is stored in the storage portion h, and the engagement portion i stores the electronic component in the bulk cassette. d
Is formed with a component supply opening j.
The component supply opening j is opened and closed by a shutter member k slidably provided in the storage portion h.

As shown in FIG. 9, the outer casing of the bulk case g has a side surface shape L when viewed from the side surface extending over the end surface on which the engaging portion i is formed and one side surface adjacent to the end surface, that is, the upper surface. A guide groove kg consisting of a strip-shaped space is formed,
A shutter member k made of a resin film is slidably accommodated in the guide groove kg. A facing hole kb for exposing the knob ka of the shutter member k to the outside is opened on the upper surface of the outer casing.

The bulk case g is attached to the bulk cassette d with the engaging portion i engaged with the guide portion 1 of the bulk cassette d (see FIG. 7), and then the shutter member k is slid to supply the components. The opening j is opened. In this way, the bulk case g is set in the bulk cassette d.

When the electronic component 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, which causes Electronic parts are supplied to the parts supply part p near the front end through the chute o (see FIG. 7).

The electronic components supplied to the component supply section p are taken out by the suction nozzles q, q, ... (See FIG. 6) and mounted on the printed circuit board.

[0010]

In the bulk case g as described above, since the shutter member k is made of a synthetic resin film and can be opened and closed with a very light force, the shutter member k can be opened and closed. However, there is a problem that it is easy to open and close carelessly.

For example, if the shutter member k is opened by vibration or the like during transportation of the bulk case g, or if the shutter member k is opened by mistake during work such as when loading and unloading in a warehouse, the shutter member k is stored in the bulk case g. This causes electronic components to pop out and cause damage or damage to the components. In addition, the bulk case g during operation of the bulk cassette d
If the shutter member k is closed due to vibration of the component mounting machine a or the like, the supply of electronic components will be hindered.

[0012]

In order to solve the above-mentioned problems, the present invention supplies the electronic components to a bulk cassette that sequentially delivers the electronic components to a component mounting machine that mounts the electronic components on a printed circuit board. In bulk case,
The driven means is formed at a predetermined position of the shutter member which is slidably guided by the guide means provided in the bulk case and which opens and closes the component supply opening of the bulk case, and corresponds to the driven means of the bulk case. The driving means is formed at the position to be opened, and the driven means is used to drive the driven means so that the opening and closing is performed.

[0013]

Therefore, according to the bulk case of the present invention, since the driven means is provided at a predetermined position of the shutter member and the driving means is provided at a position corresponding thereto, the shutter member can be slid unless the driving means is driven. Therefore, it is possible to prevent the shutter member from being opened and closed carelessly.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The bulk case of the present invention will be described below with reference to an embodiment shown in the drawings.

The accommodating portion 2 of the bulk case 1 is composed of an outer casing 3 having a flat box shape, and the outer casing 3 is formed of plastic which is subjected to antistatic treatment of static electricity. Also,
It is made transparent so that the electronic components housed inside can be viewed from the outside.

An engaging portion 4 serving as a connecting portion for connecting to the bulk cassette is integrally formed at one end of the storage portion 2. A component supply opening 5 is formed in the engagement portion 4 so that the inside and outside of the storage portion 2 communicate with each other.

The outer casing 3 has an end face portion 3a on which the engaging portion 4 is formed and one side face portion adjacent to the end face portion 3a, that is, an upper surface wall 3
By b and the inner wall 3c located on the inner side of these surfaces, a guide groove 6 as a guide means is formed, which is a strip-shaped space having a substantially L-shaped side surface. An opening 5c having substantially the same shape and size as the component supply opening 5 is provided at a position corresponding to the component supply opening 5 in the inner wall 3c.
Are formed. Further, a facing hole 7 communicating with the guide groove 6 is opened in the upper surface wall 3b of the outer casing 3.

A shutter member 8 is slidably accommodated in the guide groove 6. And the shutter member 8
The main body 9 is made of a highly flexible resin film, and when the shutter member 8 is slid in the direction to close the component supply opening 5, the main body 9 is deformed following the curved portion of the guide groove 6. It has become so.

As described above, since the main body portion 9 of the shutter member 8 is formed of the highly flexible resin film, the component supply opening portion 5 can be smoothly moved with a comparatively light force.
Can be opened and closed.

The knob 10 is provided at a position near the end of the main body 9 on the opposite side of the component supply opening 5, and is formed integrally with the main body 9 from synthetic resin, for example.
The knob 10 is located in the facing hole 7 formed in the outer casing 3.

Anti-body part 9 of shutter member 8 of knob 10
On the side, a rack 11 as a driven means is provided integrally with the knob 10.

Facing hole 7 in upper wall 3b of bulk case 1
A substantially rectangular opening 3d is formed at a position slightly closer to the opposite component supply opening 5 side, and mounting portions 12, 12 are provided at both front and rear ends of the opening 3d. The mounting part 1
Reference numerals 2 and 12 are for attaching the worm 13, and shafts projecting from both ends of the worm 13 that meshes with the rack 11 in receiving recesses 12a and 12a formed on the surfaces of the attaching portions 12 and 12 facing each other. 13a, 13
a is rotatably inserted, whereby the worm 13 is rotatably attached to the upper surface wall 3b of the bulk case 1, and a substantially upper half of the worm 13 projects above the upper surface wall 3b.

A worm 13 is used as the driving means, and an ordinary rack 11 whose teeth extend perpendicularly to the moving direction is used as the driven means. In the meshing, the teeth of the worm 13 are the teeth of the rack 11. Since they are meshed with each other at an angle that is not parallel to each other, a frictional force acts between them, so that the worm 13 does not rotate unless a certain force is applied from the outside, and the worm 13 has some resistance against the rotation. (See FIG. 4).

Therefore, the shutter member 8 has the structure shown in FIG.
2 is guided by a guide groove 6 to be slidable between an open position in which the component supply opening 5 is opened and a closed position in which the component supply opening 5 is closed shown in FIG. Is rotated by a means (not shown), whereby a rack 11 provided integrally with the shutter member 8 is provided.
Made by sending.

When the shutter member 8 is in the closed position or the open position, the worm 13 meshes with the rack 11 as shown in FIG. 2 or 1, so that the shutter member 8 is opened and closed carelessly. There is nothing to do.

In addition, since the guide groove 6 is L-shaped when viewed from the side, as described above, in the open position or closed position as shown in FIG. 1 or 2, The tip of the shutter member 8 is in contact with one surface of the guide groove 6, and the shutter member 8 is hard to move.

Therefore, since the shutter member 8 does not inadvertently move due to a slight vibration or the like, there is a slight adjustment when handling the bulk case 1 during transportation by a truck or at the time of loading / unloading at a warehouse. Therefore, it is possible to prevent an accident in which the shutter member 8 is opened and the electronic component filled in the shutter member 8 pops out of the bulk case 1 and damages the electronic component.

[0028]

As is apparent from the above description, the bulk case of the present invention is a bulk for supplying the electronic components to the bulk cassette for sequentially delivering the electronic components to the component mounting machine for mounting the electronic components on the printed circuit board. In the case, the driven means is formed at a predetermined position of the shutter member which is slidably guided by the guide means provided in the bulk case and which opens and closes the component supply opening of the bulk case, and the driven case of the bulk case. It is characterized in that a driving means is formed at a location corresponding to the means, and the driven means is used to drive the driven means to perform the opening and closing.

Therefore, according to the bulk case of the present invention, since the driven means and the driving means are in mesh with each other, the shutter member may be inadvertently opened and closed unless the driving means is driven (rotated). By preventing such inadvertent opening / closing, it is possible to prevent unnecessary ejection of electronic components in the bulk case and obstruction of the supply of electronic components to the bulk cassette.

It should be noted that the shapes and structures of the respective parts shown in the above-mentioned embodiments are merely examples of the embodiment when carrying out the present invention, and the technical scope of the present invention is thereby provided. It should not be interpreted in a limited way.

[Brief description of drawings]

FIG. 1 shows an embodiment of the bulk case of the present invention together with FIGS. 2 to 4, and is an enlarged cross-sectional view of an essential part showing a state where a shutter member is opened.

FIG. 2 is an enlarged cross-sectional view of a main part showing a state in which a shutter member is closed.

FIG. 3 is a perspective view with a part cut away.

FIG. 4 is an enlarged perspective view showing a state in which a rack and a worm are engaged with each other.

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 a bulk cassette and a bulk case.

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

FIG. 9 is an enlarged cross-sectional view showing a main part of a conventional bulk case.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bulk case 5 Component supply opening 6 Guide groove (guide means) 8 Shutter member 11 Rack (driven means) 13 Worm (drive means) a Component mounting machine d Bulk cassette

Claims (4)

[Claims] 1. A bulk case for supplying the electronic components to a bulk cassette that sequentially sends the electronic components to a component mounting machine that mounts the electronic components on a printed circuit board, and is slidable by guide means provided on the bulk case. The driven means is formed at a predetermined position of the shutter member that is guided to open and close the component supply opening of the bulk case, and the driving means is formed at a position corresponding to the driven means of the bulk case, and the driving means is used. A bulk case characterized in that the opening and closing is performed by driving the driven means by means of the above. 2. The bulk case according to claim 1, wherein the driven means is a rack, and the driving means is a worm that meshes with the rack. 3. The shutter member is adapted to slide between a surface of the bulk case on which the component supply opening is formed and a surface orthogonally adjacent to the component supply opening surface. The bulk case according to claim 1 or 2. 4. The bulk case according to claim 1, 2, or 3, wherein the shutter member is formed of a resin film.