JP3493776B2 - Bulk cassette - Google Patents

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a novel bulk cassette. More specifically, when a bulk case is replaced with a new one, chip parts are sent to the part supply unit, and it is intended to provide a new bulk cassette that prevents occurrence of a chip part supply error when the bulk case is replaced. To do.

[0002]

2. Description of the Related Art A high-speed chip component mounting machine for mounting chip components on a printed circuit board is known. This will be briefly described with reference to FIGS. 7 to 9.

Reference numeral a is a high-speed chip component mounter, which is a component supply device b for supplying chip components in a bulked state, that is, in an unloaded state, to a printed circuit board at a central portion thereof.
Is equipped with. c is a moving base of the component supply device b, and a large number of bulk cassettes d, d,
Are arranged in the moving direction of the moving base c.

The bulk cassette d is known, and an engaging portion (not shown) at its front end is engaged with the front end of the moving base c, and a clamp pawl e provided at its rear end is operated by a clamp lever f. Is attached to the moving base c by engaging with the rear end of the moving base c.

Reference numeral g denotes a bulk case, and a large number of chip parts (not shown) are accommodated in the bulk case g. The bulk case g has a thin box shape, and an opening is formed on the front end surface thereof, and the opening is opened and closed by a shutter (not shown).

The bulk case g is attached to the bulk cassette d by engaging with the guide portion h of the bulk cassette d, and a shutter (not shown) is slid to open an opening (not shown). In this way, the bulk case g is set in the bulk cassette d.

When the chip parts are taken out from the bulk case g, when the feed lever i of the bulk cassette d is pressed downward by the pressing portion (not shown), the positive pressure air is supplied from the air supply hole j, which is not shown. The chip components are individually supplied to the component supply unit k near the front end through the chute.

Further, the chip components supplied to the component supply section k are taken out by the suction nozzles 1, 1, ... And mounted on the printed circuit board.

[0009]

However, in the bulk cassette d, if all the chip components in the bulk case g set in the bulk cassette d are supplied to the high speed chip component mounting machine a, the high speed The chip part mounting machine a stops.

Therefore, the bulk cassette d is removed from the moving base c, the empty bulk case g is replaced with a new bulk case g, and the bulk case g is set again on the moving base c.

However, even if a new bulk case g is set, chip components are not supplied to the component supply part k of the bulk cassette d, so that a component supply error to the component mounting machine a occurs. Was there.

[0012]

In order to solve the above-mentioned problems, the bulk cassette of the present invention is provided with a bulk case for accommodating a large number of chip parts, and the chip parts supplied from the bulk case are supplied with a main air supply port. From inside to inside
For agitation of parts connected to the main air supply path
Main air can be supplied to the nozzle and the part chute nozzle.
In the bulk cassette that is sent to the component supply unit to the component mounting machine through the component transport path by the above, a sub air supply port that supplies auxiliary air to the component transport path and the inlet of the component transport path is formed in the main air supply channel . However, if the chip component is not normally supplied to the component supply unit when the bulk case is replaced, the auxiliary air supplied from the air cylinder attached to another predetermined location of the bulk cassette is supplied as the sub air. The chip components are supplied from the mouth and sent to the component supply unit.

[0013]

Therefore, in the bulk cassette of the present invention, when the bulk case is replaced with a new one, the main air supply port
From when the chip <br/> flop component by the main air to be supplied to the main air supply passage is not normally supplied to the component supply unit, the main is supplied from an air cylinder which is attached to a predetermined portion of the bulk cassette Secondary air supply formed in the air supply path
Since the chip components can be sent to the component supply unit for the component mounting machine by the auxiliary air supplied from the mouth, it is possible to immediately supply the components to the component mounting machine when the new bulk case is set in the bulk cassette. It is possible to prevent such a component supply error.

[0014]

The details of the bulk cassette of the present invention will be described below with reference to the illustrated embodiments.

In the figure, numeral 1 is a bulk cassette, numeral 2 is a frame as the cassette body, and required members are attached to the frame 2.

Reference numeral 3 is a frame guide, and the guide 3
And the bulk case 4 is attached.

The bulk case 4 has a flat box shape,
An opening 5 is formed at its front end, and the opening 5 is formed by a shutter 6
It is designed to be opened and closed by. Reference numeral 7 is a knob provided at the base end of the shutter 6, and is located in a facing hole 8 formed on the upper surface. The bulk chip components 9, 9, ... Are stored and supplied in such a bulk case 4. When the bulk case 4 is attached to the bulk cassette 1, the shutter 6 is opened and the opening 5 is opened.

As described above, when the bulk case 4 is attached to the bulk cassette 1, the chip components 9, 9, ... Are supplied to the inlet portion 11 of the chute 10 serving as a component transport path.

When the pressing portion of the component mounting machine (not shown) presses the feed lever 12, the chip component 9,
.. are supplied to the single-part supply unit 13. That is, when the feed lever 12 is pressed, positive pressure air is supplied from a positive pressure air supply device (not shown) connected to the air supply port 14, and the positive pressure air shoots the chip parts 9, 9 ,. Through 10 the parts supply section 13
Is supplied to.

Reference numeral 15 denotes an air supply path extending from the air supply port 14 toward the inside.
Is branched into two at its tip, one of which is connected to a component stirring nozzle 16 opened on the lower surface of the inlet portion 11 of the chute 10 and the other is directed to the component supply portion 13 side on the lower surface of the middle portion of the chute 10. Is connected to a nozzle 17 for a component chute that is opened. Reference numeral 18 is a check valve inserted in a position near the air supply port 14 of the air supply path 15 to prevent the backflow of the air supplied into the air supply path 15 to the air supply port 14 side. belongs to.

When positive pressure air is supplied from the air supply port 14, the air is sprayed from the component stirring nozzle 16 and the component chute nozzle 17 through the air supply passage 15 and is positioned at the inlet 11. The chip components 9, 9, ... Are being agitated, and one of them 9 is dropped onto the chute 10 and is blown from the component chute nozzle 17 by the air jetted from the component chute 10.
Will be sent to.

Reference numeral 19 denotes a side passage, which is the air supply passage 15
Auxiliary air supply port 20 which is branched from between the check valve 18 and the branch passage and is opened on one side surface of the bulk cassette 1.
Connected to.

Reference numeral 21 denotes a bracket 2 at the rear end of the frame 2.
It is an air cylinder attached through 2.

Reference numeral 23 denotes an air supply pipe, one end of which is connected to the air cylinder 21 and the other end of which is connected to the sub air supply port 20. An air supply switch 24 is inserted at a position closer to the slightly sub air supply port 20 side from the center of the air supply pipe 23.

By the way, when all of the chip components 9, 9, ... Supplied from the bulk case 4 are supplied to the component mounting machine, the component mounting machine is structured to stop. Needs to be removed from the moving base of the component mounting apparatus of the component mounting machine, and the bulk case 4 needs to be replaced with a new one.

Then, the empty bulk case 4 is removed and a new bulk case 4 is attached. However, in this state, the chip components 9, 9, ... Stored in the new bulk case 4 are only solidified at the inlet portion 11 of the chute 10 and do not reach the component supply portion 13.

Therefore, when the air supply switch 24 inserted in the air supply pipe 23 is opened, high-pressure air is supplied from the air cylinder 21, and the nozzle 16 for component stirring and the component chute are passed through the air supply pipe 23 and the side passage 19. It is supplied to the nozzle 17 and is ejected from these nozzles. As a result, the chip components 9, 9, ...
The chip component 9 dropped on the chute 10 is agitated by the auxiliary air jetted from the component chute 10, and the chip component 9 dropped to the chute 10 is sent to the component supply unit 13 by the auxiliary air jetted from the component chute nozzle 17.
The condition of component supply error is released.

The air supply switch 24 may be manually operated, or an optical monitoring device 25 capable of monitoring the presence or absence of the chip component 9 of the component supply unit 13 as shown in FIG. The optical monitoring device 25 is provided at a predetermined location.
When the chip component 9 is not normally supplied to the component supply unit 13, the optical monitoring device 25 automatically opens the air supply switch 24 to open the air cylinder 21. High-pressure air may be supplied from the.

Further, the mounting positions of the air cylinder 21 and the air supply pipe 23, their shapes and the like are arbitrary as long as the functions of the present invention are not impaired.

[0030]

As is apparent from the above description, in the bulk cassette of the present invention, a bulk case for accommodating a large number of chip components is mounted, and chip components supplied from the bulk case are internally supplied from the main air supply port. Rolled towards
Nozzle for parts agitation connected to the main air supply path
And by supplying the main air to the parts chute nozzle.
In the bulk cassette that is sent to the component supply unit to the component mounting machine through the component transport path, a sub air supply port that supplies auxiliary air to the component transport path and the inlet of the component transport path is provided.
If the chip component is not normally supplied to the component supply part when the bulk case is replaced and is formed in the main air supply path , it is supplied from an air cylinder attached to another predetermined position of the bulk cassette. It is characterized in that auxiliary air is supplied from the sub air supply port to feed the chip component to the component supply unit.

Therefore, in the bulk cassette of the present invention, when the bulk case is replaced with a new one, the main air
-By the main air supplied from the supply port to the main air supply path
If the chip parts are not normally supplied to the part supply part, the auxiliary air supplied from the air cylinder attached to the bulk cassette at the specified location is formed in the main air supply path.
-Since the chip air can be sent to the component supply unit for the component mounting machine by the auxiliary air supplied from the supply port, it is possible to supply the component mounting machine immediately after setting a new bulk case in the bulk cassette. It is possible to prevent the occurrence of a component supply error as in the related art.

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 limited by these. It should not be construed in a conventional way.

[Brief description of drawings]

1 shows an example of an embodiment of the bulk cassette of the present invention together with FIGS. 2 to 6, and is a schematic perspective view.

FIG. 2 is a schematic cross-sectional view showing an enlarged main part.

3 is a cross-sectional view taken along the line III-III in FIG.

FIG. 4 is a circuit diagram showing an air supply path.

FIG. 5 is a circuit diagram showing an air supply path when an optical monitoring device is provided.

FIG. 6 is a perspective view showing a bulk case.

FIG. 7 is a schematic perspective view showing an example of a conventional bulk cassette.

FIG. 8 is a schematic view of the component mounting machine together with FIG. 9, and is a perspective view.

FIG. 9 is a side view.

[Explanation of symbols]

1 Bulk Cassette 4 Bulk Case 9 Chip Parts 10 Chute (Parts Conveying Path) 11 Inlet 13 Parts Supply 14 Air Supply Port (Main Air Supply) 15 Air Supply (Main Air Supply) 16 Parts Stirring Nozzle 17 Parts Chute nozzle 20 Sub air supply port 21 Air cylinder 24 Air supply switch (auxiliary air supply switch) 25 Optical monitoring device

Claims (2)

(57) [Claims] 1. A bulk case for accommodating a large number of chip parts is mounted, and chip parts supplied from the bulk case are supplied with main air from a main air supply port toward the inside.
Nozzle for parts agitation and part chute connected to the feed line
A sub-air supply port that supplies auxiliary air to the above-described component transfer path and the inlet of the component transfer path in a bulk cassette that supplies main air to the nozzle for use to feed the part to the component mounting section through the component transfer path. Is formed in the main air supply path , and if the chip part is not normally supplied to the part supply part when the bulk case is replaced, it is supplied from the air cylinder attached to another predetermined location of the bulk cassette. A bulk cassette, characterized in that auxiliary air is supplied from the auxiliary air supply port to feed the chip parts to the part supply section. 2. An auxiliary supplied from the sub air supply port.
With an auxiliary air supply switch that opens and closes the air
To an optical monitoring device for determining the supply state of the chip component when replacing the bulk case is provided, when the chip component is determined not to be normally supplied to the component supply unit by the optical monitoring device, said Auxiliary
2. The bulk cassette according to claim 1, wherein an air supply switch is opened to automatically feed auxiliary air from the air cylinder.