JPH11289191A - Device for supplying electronic component and method for the supplying electronic component - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly exchange trays and to house many trays by using a magazine. SOLUTION: A magazine 3 is housed in a housing body 21. A pallet is pulled out of the magazine 3 by a pull-out means 30 and is lifted up to a level L of an electronic component supply. A transfer head 9 picks up an electronic component 8 in a tray 1 on the uppermost step among the piled trays 1 on the pallet 2 and mounts the part 8 to a substrate 11. When the electronic component 8 in the tray 1 is short of stock, the pull-out means 30 recovers the pallet 2 to the upper surface 21a of the housing body 21. Then the empty tray is recovered to a second recovery part 44 through a second moving means 40. The pallet 2 is returned to an electronic component supply stage S1, and the electronic part 8 in the next tray 1 on the uppermost step is mounted on the substrate 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic component supply device and an electronic component supply method for supplying an electronic component to an electronic component mounting apparatus.

[0002]

2. Description of the Related Art Trays, which are frequently used as a method of supplying electronic components to an electronic component mounting apparatus, are generally mounted on a pallet and stored in a magazine in a stacked manner. Hereinafter, this kind of conventional electronic component supply device will be described with reference to the drawings.

FIG. 4 is a side view of a conventional electronic component supply device. The tray 1 is placed on a pallet 2, and the pallet 2 is stacked and stored on a rack 4 of a magazine 3. When the feed screw 6 rotates by being driven by the motor 5,
The magazine 3 moves up and down. On the front side of the magazine 3, a pallet 2 loading / unloading means 7 is provided. Pallet 2
Is pulled out from the magazine 3 to the electronic component supply stage S1 by the loading / unloading means 7 (arrow a), and the electronic components 8 stored in the tray on the pallet 2 (see the tray 1 indicated by a chain line) are transferred to the transfer head 9 And mounted on the substrate 11 on the conveyor 10. If the electronic components on the tray 1 are out of stock, the pallet 2 is collected into the magazine 3 by the loading / unloading means 7.

A drawer 12 for the pallet 2 is provided behind the magazine 3, and the pallet 2 on which the empty tray 1 collected in the magazine 3 is placed is provided.
2 is pulled out to the position of the broken line (arrow b).

[0005]

However, in the conventional configuration, the tray 1 used in the electronic component supply stage S1 is not used.
Is empty, the pallet 2 must be taken in and out between the magazine 3 and the electronic component supply stage S1 each time to replace the tray, and this tray replacement takes a considerable amount of time. Was not going up.

Conventionally, one tray 1 is placed on one pallet 2, and the pallets 2 are stacked on the rack 4 of the magazine 3.
There is a problem in that a large amount of trays 1 cannot be stored in the inside, or in order to store a large amount of trays 1, the magazine 3 must be raised and enlarged.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an electronic component supply apparatus and an electronic component supply method that can quickly and easily exchange trays and accommodate a large number of trays in a magazine. I do.

[0008]

According to the present invention, there is provided an electronic component supply apparatus comprising: a magazine for stacking a plurality of trays in a stacked pallet; and a drawer for extracting the pallet from the magazine to an electronic component supply stage; An empty tray collection unit provided at the top of the magazine, and an uppermost empty tray on the pallet used in the electronic component supply stage is transferred from the electronic component supply stage to the collection unit. Transfer means for collecting.

Preferably, the pull-out means also serves as the transfer means, and the pull-out means is moved up and down between the level of the pallet stored at the lowermost stage of the magazine and the level of the collecting section. A moving means is provided.

[0010] More preferably, a second collecting section for collecting the empty tray collected by the collecting section from the collecting section is provided on a side portion of the magazine, and the empty tray collected by the collecting section is provided. The second transfer section is provided with a second transfer means for collecting.

Further, in the electronic component supply method of the present invention, a pallet in which a plurality of trays are stacked is stacked and stored in a magazine, the pallet is pulled out of the magazine by a drawer, and the uppermost tray on the drawn pallet is drawn. Is supplied to the transfer head, and when the electronic components in the uppermost tray are out of stock, the empty tray is recovered from the pallet by the transfer means, and then the uppermost empty tray is collected. The electronic components in the former second-stage tray, which has become the newest uppermost stage due to the collection of the tray, are supplied to the transfer head.

Preferably, the pull-out means also functions as the transfer means. Further, in the electronic component supply method of the present invention, a step of pulling out a pallet in which a plurality of trays are stacked from a magazine by a drawer, and a step of raising an uppermost tray on the pallet to an electronic component supply level by vertical movement means, Supplying the electronic components stored in the uppermost tray to the transfer head, and transferring the pallets from the electronic component supply stage to the collecting section at the top of the magazine by the transfer means when the electronic components in the tray are out of stock. And removing the empty tray at the top of the pallet from the pallet to make the old second tray the top, and transferring this pallet from the collection unit to the electronic component supply stage by the transfer means. And restarting the supply of the electronic components to the transfer head.

According to the electronic component supply device of the present invention having the above-described configuration, a plurality of trays are stacked on one pallet and an empty tray collecting section is provided at the top of the magazine, so that the tray can be replaced. It can be set up quickly. Also, a large number of trays can be stored in the magazine. Also, a large number of trays can be stored in the magazine. In addition, since the magazine is of a fixed type that does not move up and down, and the upper portion is used as a space for the collection section of the tray, space saving of the entire apparatus can be realized. Further, the drawer also serves as the transfer means, so that the apparatus can be simplified. Further, by providing the second collection unit and the second transfer unit, the tray collected in the collection unit above the magazine can be collected in the second collection unit on the side of the magazine with good setup.

According to the electronic component supply method of the present invention having the above-described structure, by stacking a plurality of trays on one pallet, tray exchange can be performed quickly and with good setup. Also, a large number of trays can be stored in the magazine. Further, the drawer also serves as the transfer means, so that the apparatus can be simplified.

[0015]

FIG. 1 is a side view of an electronic component supply apparatus according to an embodiment of the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is a side view of a pallet in which a plurality of trays are stacked. is there. In FIG. 1, the magazine 3 is installed on a base 20. The magazine 3 is housed inside a large box-shaped housing 21, and the upper surface 21 a of the housing 21 located at the upper part of the magazine 3 is a collection section for the tray 1. As shown in FIGS. 1 and 3, a plurality of (three in this example) trays 1 are stacked on one pallet 2. The pallets 2 are stacked and stored in a rack 4 of a magazine 3. By stacking a plurality of trays 1 on one pallet 2 in this manner, the number of trays 1 stored in the magazine 3 can be increased, and the trays 1 can be exchanged well as described later. .

A drawer 30 for the pallet 2 is provided in front of the magazine 3. Next, the structure of the pull-out unit 30 will be described with reference to FIGS. 31 is a thin box-shaped support frame. A nut 32 is mounted on a side surface of the support frame 31, and a vertical feed screw 33 is screwed into the nut 32. A belt 35 is tuned to the output shaft of the feed screw 33 and the motor 34. When the motor 34 rotates forward and backward, the feed screw 33 rotates forward and backward.
Thereby, the nut 32 moves up and down along the feed screw 33, and the support frame 31 also moves up and down. That is, nut 3
2. The feed screw 33, the motor 34, and the belt 35 serve as up and down moving means of the drawing means 30.

The vertically moving means includes a drawer means 30 for moving the level of the pallet 2 stored at the lowermost stage of the magazine 3;
The tray 21 is moved up and down between the upper surface 21a of the storage body 21 which is a collection part of the empty tray 1 and the electronic component supply level L. In FIG. 1, the tray 1 on the pallet 2 indicated by a broken line shows a state in which the drawer 30 has been raised to the electronic component supply level L in the electronic component supply stage S1.

A belt 36 is provided on the support frame 31. The belt 36 is adjusted horizontally on the pulley 37. The belt 36 is driven and rotated by a motor 38 (FIG. 2). A belt 45 transmits the rotation of the motor 38 to the pulley 37. An engagement unit 39 is mounted on the belt 36. In FIG. 2, an engaging portion 2 a is cut out at a front edge portion of the pallet 2, and rollers 40 which are pivotally mounted on both sides of the tip of the engaging unit 39 engage with the engaging portion 2 a.

In FIG. 1, when the motor 34 is driven to move the support frame 31 up and down, the roller 40 moves up and down in the engaging portion 2a of the pallet 2 stored in the magazine 3. When the roller 40 is positioned within the predetermined engaging portion 2a and the motor 38 is driven forward there, the belt 36 in FIG.
Is rotated clockwise and the engagement unit 39 moves horizontally in the direction of arrow A, whereby the pallet 2 is
It is pulled out above (see the tray 1 and the pallet 2 shown by a chain line in FIG. 1). When the motor 38 is reversely driven, the engagement unit 39 moves to the left in FIG. 1 and the pallet 2 on the support frame 31 can be collected in the magazine 3.
Numeral 0 can also serve as a collecting means for collecting the pallet 2 into the magazine 3.

Referring to FIG. 1, a second
Transfer means 40 is provided. Second transfer means 40
Consists of a moving table 41 and a chuck head 42 that moves along the moving table 41. The chuck head 42 has a chuck section 43 for chucking and holding the tray 1 by vacuum suction means, chuck claw means, or the like. Further, a second collection unit 44 made of a container is provided on a side portion on the back side of the magazine 3. 11 is a conveyor 10
And 8 are electronic components mounted on the substrate 11.

This electronic component supply device has the above-described configuration, and the entire operation will be described next. In FIG. 1, the motor 34 is driven to move the drawer 30 up and down so that the roller 40 of the engaging unit 39 is engaged with the engaging portion 2a of the desired pallet 2 stored in the magazine 3.
Then, by driving the motor 38 forward, the pallet 2
Is pulled out onto the support frame 31 (arrow A). In FIG. 1, the tray 1 and the pallet 2 indicated by alternate long and short dash lines have been pulled out onto the support frame 31.

Next, the motor 34 is driven forward to raise the support frame 31 to the electronic component supply level L of the electronic component supply stage S1 (arrow B). In FIG. 1, the tray 1 and the pallet 2 indicated by broken lines show a state where the tray 1 and the pallet 2 have risen to the electronic component supply level L. The level of the upper surface of the support frame 31 at the electronic component supply level L is the same level as the upper surface 21 a of the housing 21. The transfer head 9 of the electronic component mounting apparatus picks up the electronic component 8 of the uppermost tray 1 among the three trays 1 stacked on the pallet 2 and mounts the electronic component 8 on the substrate 11 positioned on the conveyor 10. (Arrow C).

In FIG. 1, an electronic component supply stage S1 is shown.
When the electronic components on the uppermost tray 1 on the pallet 2 are out of stock, the motor 38 is driven in reverse. Then, the engagement unit 39 moves to the left, thereby transferring the pallet 2 in the same direction and collecting it on the upper surface 21a of the storage body 21 (arrow D). That is, the drawer 30 moves the pallet 2 on the used electronic component supply stage S1 to the upper surface 2
It also serves as a transfer means for transferring to and collecting it on 1a.

When the used empty tray 1 is collected on the upper surface 21a as described above, the tray 1 is picked up by being picked up by the chuck portion 43 of the second transfer means 40 and is picked up. (Arrow E). Then, by releasing the chucking state, the tray 1 falls into the second collecting section 44 and is collected (arrow F). Thus, the second transfer means 40 and the second collection unit 4
4, the upper surface 21a serving as the first recovery unit is provided.
The tray 1 collected above can be collected with good setup.

On the other hand, if the uppermost tray 1 on the pallet 2 sent onto the upper surface 21a is chucked and picked up by the chuck portion 43 of the second transfer means 40 as described above, the support frame 31 Is driven in reverse to return the pallet 2 to the electronic component supply stage S1 (arrow G). At this time, tray 1 on pallet 2 is 1
The number is reduced to two. Therefore, the motor 34 is slightly driven to slightly raise the support frame 31 by the thickness of the tray, and the tray 2 of the old second stage, which is newly the uppermost stage, is set to the electronic component supply level L. The electronic component 8 is mounted on the substrate 11 by the transfer head 9.

When the electronic components of the tray 1 are out of stock, the empty tray 1 is transferred onto the upper surface 21a in the same manner as described above, and the second transfer means 40
To be collected in the second collection unit 44. In the same manner as described above, the pallet 2 is returned to the electronic component supply stage S1, and the last (former third stage) tray 1 remaining on the pallet 2 is slightly raised by the thickness of the tray. At the component supply level L, the electronic components 8 of the tray 1 are mounted on the substrate 11 by the transfer head 9. When the tray 1 becomes empty, the tray 1 is transferred onto the upper surface 21a and collected in the second collection unit 44 in the same manner as described above.
As described above, when all the three trays 1 on the pallet 2 are used, they are collected by the second collection unit 44.

Next, the motor 34 is reversely driven to lower the support frame 31, and the roller 40 of the engagement unit 39 is stopped in the engagement portion 2a of the desired pallet 2 in the magazine 3 (arrow H). Subsequent operations are the same as those described above, and the pallet 2 is pulled out of the magazine 3 (arrow A).
The tray 1 is raised to the supply level (arrow B), and the mounting of the electronic components by the transfer head 9 is restarted.

The present invention is not limited to the above embodiment, and the upper surface of the magazine 3 may be used as an empty tray collecting section. In this case, the storage body 21 may not be provided. Also, the operation method of the apparatus is not limited to the above-described embodiment, and the drawer 30 also serves as the collection unit for collecting the pallet 2 into the magazine 3.
The pallet 2 that has been used by the
It may be appropriately collected on the rack 4 of the magazine 3 from above.

[0029]

According to the present invention, a plurality of trays are stacked on one pallet and an empty tray collecting section is provided at the top of the magazine, so that the trays can be exchanged quickly and with good setup. . In addition, since the magazine is of a fixed type that does not move up and down, and the upper portion is used as a space for the collection section of the tray, space saving of the entire apparatus can be realized.
Further, the drawer also serves as the transfer means, so that the apparatus can be simplified. In addition, the structure can be simplified by using the upper surface of the magazine storage body as the collection section. In addition, it is also possible to reduce the size of the vertical moving means by using a fixed type that does not vertically move a large and heavy magazine and vertically moving the drawer that is lighter than the magazine by the vertical moving means. Further, since the drawer also serves as the transfer means, the apparatus can be simplified. Further, by providing the second collection unit and the second transfer unit, the tray collected in the collection unit above the magazine can be collected in the second collection unit on the side of the magazine with good setup.

[Brief description of the drawings]

FIG. 1 is a side view of an electronic component supply device according to an embodiment of the present invention.

FIG. 2 is a plan view of the electronic component supply device according to the embodiment of the present invention.

FIG. 3 is a side view of a pallet in which a plurality of trays are stacked in the electronic component supply device according to the embodiment of the present invention;

FIG. 4 is a side view of a conventional electronic component supply device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 tray 2 pallet 3 magazine 21 storage body 21a top surface (collection unit) 30 pull-out unit (transfer unit, collection unit) 31 support frame 32 nut 33 feed screw 34 motor 36 belt 39 engagement unit 40 second transfer unit 44 second Collection section of

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Kimiyuki Yamazaki 1006 Kadoma Kadoma, Osaka Pref. Matsushita Electric Industrial Co., Ltd.

Claims (6)

[Claims] 1. A magazine for stacking a plurality of trays stacked on a pallet for storage, a drawer for pulling out the pallets from the magazine to an electronic component supply stage, and an empty tray collection unit provided at the top of the magazine And transfer means for transferring and collecting the uppermost empty tray on the pallet used in the electronic component supply stage from the electronic component supply stage to the collection unit. Electronic component supply device. 2. A vertically moving means for moving said drawing means up and down between a level of a pallet stored at a lowermost stage of said magazine and a level of said collecting section. The electronic component supply device according to claim 1, further comprising: 3. A second collection section for collecting empty trays collected by the collection section from the collection section is provided on a side portion of the magazine, and the empty trays collected by the collection section are collected by the second collection section. The electronic component supply device according to claim 1, further comprising a second transfer unit configured to collect the second component in the collection unit. 4. A pallet in which a plurality of trays are stacked is stacked and stored in a magazine, the pallet is pulled out of the magazine by a drawer, and the electronic components stored in the uppermost tray on the drawn pallet are transferred. When the electronic components in the uppermost tray are out of stock, the empty tray is recovered from the pallet by the transfer means, and then the uppermost empty tray is recovered. And supplying the electronic components in the tray at the top of the former second stage to the transfer head. 5. The electronic component supply method according to claim 4, wherein said drawing means also serves as said transfer means. 6. A step of pulling out a pallet in which a plurality of trays are stacked from a magazine by a drawing means, a step of raising an uppermost tray on the pallet to an electronic component supply level by a vertically moving means, A step of supplying the stored electronic components to the transfer head, and a step of transferring the pallets from the electronic component supply stage to the collecting section at the top of the magazine by the transfer means and collecting the electronic components in the tray when the electronic components are out of stock. Then, the empty tray at the top of the pallet is removed from the pallet, and the old second tray is moved to the top, and the pallet is transferred from the collection section to the electronic component supply stage by the transfer means, and the transfer head is transferred. Restarting the supply of the electronic component to the electronic component.