JP3182985B2 - Chip supply device and magazine replacement method in chip supply device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chip supply device for supplying chips to a pickup head of an electronic component mounting machine, and a method of exchanging a magazine in the chip supply device .

[0002]

2. Description of the Related Art As means for supplying chips to a pickup head of an electronic component mounting machine, a device using a tray is often used. The tray stores chips in pockets formed in a matrix, and is frequently used as a means for supplying relatively large chips. Hereinafter, a chip supply device using a conventional tray provided in an electronic component mounter will be described with reference to FIG.

FIG. 7 is a side view of a chip supply device. 1
Is a main body case, inside which is a box-shaped magazine 2
Is stored. Inside the magazine 2, pallets 4 on which the trays 3 are placed are stacked and stored. The pallet 4 is mounted on a rack (not shown) formed on the inner wall of the magazine 2 so as to be slidable in the horizontal direction indicated by an arrow a. There are many trays 3 and chips of various types are provided. Further, the magazine 2 is moved up and down in the main body case 1 by a vertically moving means (not shown) to position a desired tray 3 at a predetermined level Q.

A drawer unit 5 is provided in the front of the main body case 1. The drawer unit 5 includes a substantially thin box-shaped main body 6, pulleys 7 and 8 disposed inside the main body 6, a belt 9 tuned to the pulleys 7 and 8, and a block mounted on the belt 9. 10, a drive unit 11 attached to the block 10, a chuck claw 12 driven by the drive unit 11 to open and close, and the like. When the belt 9 is rotated in the forward or reverse direction by being driven by a motor (not shown), the chuck claws 12 move forward and backward in the horizontal direction indicated by the arrow b.

In front of the drawer unit 5, a printed circuit board 13 is positioned by being clamped by clampers 14 and 15. A pickup head 17 is provided above the drawer unit 5. The pickup head 17 is mounted on the chip 1 stored in the pocket of the tray 3.
6 is vacuum-adsorbed to the nozzle 18 and picked up by an arrow c.
Then, the chip 16 is mounted on the printed circuit board 13 by moving the printed circuit board 13 upward as shown in FIG.

This chip supply device is configured as described above. Next, a method of replacing the tray 3 will be described.

As described above, the pickup head 17
While moving in the direction of arrow c, the chips 16 provided on the tray 3 on the drawer unit 5 are sequentially mounted on the printed circuit board 13 at predetermined coordinate positions. Chip 1 in tray 3
When 6 is out of stock, the tray 3 is replaced as follows.

[0008] First, the chuck claws 12 that have chucked the left end of the pallet 4 move rightward as the belt 9 rotates, and collect the pallet 4 in an empty seat in the magazine 2.
Next, the driving unit 11 is operated to release the chuck state of the pallet 4 by the chuck claws 12, and then the chuck claws 12 are retracted to the left so as not to hinder the vertical movement of the magazine 2.

Next, the magazine 2 is moved up and down to position the pallet 4 of the tray 3 provided with the predetermined chips 16 at the same level Q as the chuck pawls 12. Next, the chuck claw 12 is moved rightward to chuck the left end of the pallet 4. Next, the chuck pawl 12 is moved to the left, and the pallet 4 is pulled out below the pickup head 17. When the above operation is completed, the operation of mounting the chips 16 of the tray 3 on the printed circuit board 13 by the pickup head 17 is restarted.

[0010]

However, in the above-mentioned conventional means, when the replacement of the tray 3 is completed as described above, the operator opens the door (not shown) of the main body case 1 and puts it on the main body case 1. Attached display panel (not shown)
To check which tray 3 is a used empty tray 3, take out the pallet 4 on which the tray 3 is placed from the magazine 2, and remove the pallet 4 on which the new tray 3 is placed. Since the magazine 2 had to be replenished, there was a problem that the labor burden on the worker was extremely large.

When a new pallet 4 is refilled, the mounting of the chip 16 on the printed circuit board 13 by the pickup head 17 must be stopped for a considerably long time during the exchange of the tray 3 for safety. As a result, there is a problem that the operation efficiency of the electronic component mounting machine is reduced.

As means for mounting the chips on the tray on the printed circuit board, the chips on the tray are picked up by a first pickup head and transferred to a chip displacement correction stage or a chip displacement detection stage. The second pickup head picks up the chip on the stage on which the displacement has been corrected or detected,
Although there is a means for mounting on a printed circuit board, such a means has the same problem as described above.

Accordingly, the present invention provides a chip supply device capable of advantageously changing trays and a magazine in the chip supply device.
An object of the present invention is to provide a method for replacing gin .

[0014]

SUMMARY OF THE INVENTION For this purpose, the present invention provides a magazine for stacking chip storage trays and slidably storing the chips in a horizontal direction, and a magazine which is located in front of the magazine and is stored in the magazine. A first drawer unit for pulling out the tray below the pickup head, a second drawer unit behind the magazine and for drawing out the used tray collected in the magazine from the first drawer unit; A chip comprising a holder for hanging the magazine in a detachable manner by loading a locking portion provided on the magazine, and a vertically moving means for vertically moving the magazine by vertically moving the holder. A supply device, wherein the vertical movement means is driven to lower the magazine to a predetermined level in a magazine replacement lower space. So as to leave from the holder the locking portion is lifted from the holder, the condition
Transports the magazine from the magazine replacement lower space
And replace the new magazine with the lower space for replacing the magazine.
The magazine is exchanged for the magazine .

[0015]

In the above construction, empty trays are picked up one after another by the pickup head of the electronic component mounting machine, and the empty tray is collected in the magazine by the first drawer unit. The empty tray is collected by pulling it out of the magazine by the unit. In this case, by immediately refilling a new tray in the magazine into the first drawer unit, the chips can be mounted on the printed circuit board without significantly reducing the operation efficiency of the electronic component mounting machine. In this case, if the first drawer unit and the second drawer unit slide the tray at the same level, the tray can be replaced quickly and smoothly. In addition, the variety of printed circuit boards on which chips are mounted
When replacing a magazine for replacement,
The magazine is driven by lowering the holder
Down to a predetermined level in the lower space for magazine replacement.
And raise the locking part from the holder,
Automatically remove the magazine and replace the magazine.
U.

[0016]

Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of the chip supply device. Are denoted by the same reference numerals in the conventional example the same components shown in FIG. Reference numeral 21 denotes a main body case in which the magazine 2 is housed. Rack 2 on the inner wall of Magazine 2
The pallet 4 on which the tray 3 is mounted is slidably stacked on the rack 22.
23 is a caster of the main body case 21. Body case 2
A first drawer unit 5 is provided in front of 1, and the tray 3 is placed on the first drawer unit 5. Chips 16 are placed in the matrix pockets of tray 3.
Is stored.

Next, the vertical moving means of the magazine 2 will be described with reference to FIG. Ball screws 24 and 25 are vertically arranged on both sides in the main body case 21. The upper ends of the ball screws 24 and 25 are supported by a partition wall 26,
The lower end is supported by bearings 27 and 28.

On the partition wall 26, a motor 31 for rotating the ball screw 25 is provided. The ball screw 24 and the ball screw 25 are linked and connected via pulleys 32 and 33 and a belt 34. Nuts 35 and 36 are mounted on the ball screws 24 and 25. The nuts 35 and 36 are held at both ends of the support plate 37 (see also FIG. 3). Brackets 38 are attached to both ends of the support plate 37, and holders 39 are attached to lower portions of the brackets 38.

Pins 40 are provided on both sides of the magazine 2 as locking portions. Insert this pin 40 into holder 3
By loading the V-shaped groove 41 formed in the magazine 9, the magazine 2 is suspended and held by the holder 39 so as to be detachable. Therefore, when the motor 31 rotates forward, the ball screws 24 and 25 simultaneously rotate in the forward direction. Then, the nuts 35 and 36 rise along the ball screws 24 and 25, and the magazine 2 also rises. When the motor 31 rotates in the reverse direction,
Similarly, the magazine 2 descends. That is, the ball screws 24, 25, the motor 31, the nuts 35, 36, and the like are up / down movement means for causing the magazine 2 to perform up / down operations. Thus, by moving the magazine 2 up and down, the inside of the magazine 2 Place the desired tray 3 at the level Q described above.
Move to FIG. 4 shows a state in which the motor 31 rotates in the reverse direction and the magazine 2 is lowered to the lowermost position.

In FIG. 1, reference numeral 50 denotes a truck. Trolley 5
0 transports the magazine 2 and includes a base plate 51,
A caster 52 and a handle 5 held and operated by an operator
Consists of three. As shown in FIGS. 2 and 4, the carriage 50 enters and exits a magazine replacement lower space T secured below the magazine 2 in the main body case 21. FIG.
In the figure, reference numeral 42 denotes an opening / closing door provided on the back surface of the main body case 21, which is opened in the direction of arrow d to put the magazine 2 in and out.

In FIG. 1, reference numeral 60 denotes a second drawer unit, which is provided behind the main body case 21.
The second drawer unit 60 has the same structure as the first drawer unit 5, and as shown in FIG. 5A, the main body 6, the pulleys 7, 8, the belt 9, the block 10, the drive unit 1, and the like.
1, chuck jaws 12 and the like. The second drawer unit 60 includes a hinge 61 (see FIG. 5A).
Is attached to the main body case 21 so as to be rotatable in the direction of an arrow e (see also FIG. 1), and is rotated by 90 ° counterclockwise in FIG.

In FIG. 1, a display panel 62 and an operation panel 63 are provided on the back of the main body case 21. 2 and 4, a window 64 for opening the pallet 4 on which the tray 3 is loaded is opened in the front surface of the main body case 21. Further, as shown in FIG. 5A, the first drawer unit 5 and the second drawer unit 60 are arranged so that the tray 3 is slid at the same level Q so that the transfer of the pallet 4 can be performed smoothly. Have been.

This chip supply device is constructed as described above. Next, FIGS. 5 (a), 5 (b), (c) and 6
A method of replacing the tray 3 will be described with reference to (a), (b), and (c). 5 (a), 5 (b) and 5 (c) and FIG. 6 (a)
(B) and (c) show a series of operations.

In FIG. 5A, while the pickup head 17 of the electronic component mounting machine moves in the direction of arrow c, the first
The chips 16 provided on the tray 3 on the drawer unit 5 are sequentially mounted on the printed circuit board 13 at predetermined coordinate positions. If the chips 16 on the tray 3 are out of stock,
The exchange of the tray 3 is performed as follows.

First, in FIG. 5A, when the belt 9 rotates clockwise, the chuck claw 12 of the first drawer unit 5 that chucks the left end of the pallet 4 is rotated.
Moves to the right, and collects the pallet 4 in the vacant seat S in the magazine 2 (FIG. 5B). Next, after the drive unit 11 is operated to release the chuck state of the pallet 4 by the chuck claws 12, the chuck claws 12 are retracted to the left so as not to hinder the vertical movement of the magazine 2 (FIG. 5).
(C)).

At the same time, the second drawer unit 60
Of the pallet 4 collected in the vacant seat S chucks the right end of the pallet 4 (FIG. 5C). Next, the chuck claws 12 move to the right, and the pallet 4
Is collected on the upper surface of the main body 6 of the second drawer unit 60 (FIG. 6A). Tray 3 emptied in this way
Is collected in the second drawer unit 60, the magazine 2 is then moved up and down so that the pallet 4 of the tray 3 provided with the desired chips 16 is at the same level as the chuck claws 12 of the first drawer unit 5. Then, the chuck pawl 12 is moved rightward to chuck the left end of the pallet 4 (see FIG. 6B). Next, the pallet 4 is pulled out below the pickup head 17 by moving the chuck claw 12 to the left, and the chip 16 of the tray 3 is
The operation of mounting on the vehicle is restarted (FIG. 6C). When the empty tray 3 is recovered from the first drawer unit 5, a new tray 3 is immediately refilled into the first drawer unit 5, so that the printed board 13 of the chip 16 by the pickup head 17 is provided. Since the mounting on the electronic component mounter can be restarted immediately, a decrease in the operating efficiency of the electronic component mounting machine due to the replacement of the tray 3 can be minimized.

On the other hand, a buzzer or lamp (not shown)
The operator is notified that the tray 3 has been replaced.
Therefore, the operator takes out the pallet 4 collected in the second drawer unit 60, stores it in a stocker (not shown), and refills the pallet 4 provided with the new tray 3 into the second drawer unit 60. When the replenishment operation is completed, the operator operates the operation panel 63 to input the completion of the replenishment operation to a control unit (not shown). Then, the chuck claw 12 chucks the right end of the pallet 4 on which the tray 3 is placed, and attaches the pallet 4 to the magazine 2.
In a vacant seat. Of course, as described above, when the worker is performing such a work, the work of mounting the chip 16 on the printed circuit board 13 by the pickup head 17 has already been resumed.

As described above, the second drawer unit 60
When the empty tray 3 collected above is taken out and a new tray 3 is being refilled, the empty tray 3 has already been pulled out of the magazine 2, and thus the chip 16 to the printed circuit board 13 by the pickup head 17 is used. It is not necessary to stop the loading of the device, and the operation efficiency of the device does not decrease so much. Further, the operator does not need to check the display panel 62 to see which tray 3 in the magazine 2 has been sold out and collected, unlike the above-described conventional means, and the second method is not necessary.
The tray 3 collected in the drawer unit 60 may be replaced.

Of course, various methods of operating the present apparatus are conceivable. For example, if the empty tray 3 is collected from the first drawer unit 5 into the magazine 2, the magazine 2 is immediately moved up and down. The new tray 3 is moved to the level Q, the tray 3 is refilled onto the first drawer unit 5, and the mounting of the chip 16 on the printed circuit board 13 by the pickup head 17 is immediately restarted. Thereafter, the magazine 2 may be moved up and down again to collect the previously collected empty tray 3 on the second drawer unit 60. In this case, the operation of the pickup head 17 is stopped. By shortening the time, it is possible to further prevent a decrease in the operation efficiency of the electronic component mounting machine.

The operation of replacing the magazine 2 for changing the type of the printed circuit board 13 is performed as follows. That is, as shown in FIG.
With the zero entered, the motor 31 is driven to lower the magazine 2 to a predetermined level in the magazine replacement lower space T and land on the carriage 50. In FIG. 3, a chain line indicates a state where the magazine 2 has landed on the bogie 50. As shown in the figure, in this state, the pin 40 rises from the V-shaped groove 41 and separates, and the magazine 2 is automatically released from the holder 39.
The magazine 2 has been removed , so the magazine 2 is stocked by driving the cart 50 while holding the handle 52 (not shown).
The magazine 2 is unloaded from the carriage 50, a new magazine 2 is placed, and the magazine 2 is carried into the main body case 21.
Next, when the motor 31 is driven to raise the holder 39, the pins 40 of the new magazine 2 on the carriage 50 are fitted into the V-shaped grooves 41, and the magazine 2 is suspended by the holder 39 to a predetermined level. Can be lifted. As described above,
The exchange of the magazine 2 ends.

The present invention is not limited to the above embodiment. For example, a hook may be provided in place of the chuck claw 12, and the pallet 4 may be moved by locking the pallet 4 with the hook. Various design changes are conceivable for the specific shape and structure of the part.

[0033]

According to the onset bright As described above, according to the present invention, the tray of chips is picked up in the pickup head when the chip becomes out of stock, it is possible to perform the tray exchange smoothly. In addition, when the tray is replaced, the time for stopping the mounting of the chip on the printed circuit board by the pickup head can be remarkably shortened as compared with the conventional means, so that a decrease in operation efficiency can be solved. In addition, magazines can be changed smoothly with light work, such as when changing the type of printed circuit board. In addition, the print base on which the chip is mounted
Magazine exchange for board type change etc. is well organized
It can be done smoothly.

[Brief description of the drawings]

FIG. 1 is a perspective view of a chip supply device according to an embodiment of the present invention.

FIG. 2 is a sectional view of a chip supply device according to an embodiment of the present invention.

FIG. 3 is a side view of a magazine and a cart of the chip supply device according to the embodiment of the present invention.

FIG. 4 is a sectional view of a chip supply device according to an embodiment of the present invention.

5A is a side view of a main part during tray replacement by the chip supply device according to one embodiment of the present invention. FIG. 5B is a side view of a main part during tray replacement by the chip supply device according to one embodiment of the present invention. ) Side view of main part during tray exchange by chip supply device in one embodiment of the present invention.

FIG. 6A is a side view of a main part during tray replacement by the chip supply device according to one embodiment of the present invention. FIG. 6B is a side view of a main part during tray replacement by the chip supply device according to one embodiment of the present invention. ) Side view of main part during tray exchange by chip supply device in one embodiment of the present invention.

FIG. 7 is a side view of the conventional chip supply device during tray replacement.

[Explanation of symbols]

 2 Magazine 3 Tray 5 First drawer unit 16 Chip 17 Pickup head 24 Ball screw 25 Ball screw 31 Motor 35 Nut 36 Nut 39 Holder 40 Pin (locking part) 50 Cart 60 Second drawer unit

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) B65G 1/00-1/20 B23P 19/00 H05K 13/02

Claims (3)

(57) [Claims] 1. A magazine for stacking chip storage trays and slidably storing them in a horizontal direction, and a first magazine which is located in front of the magazine and which pulls out the tray stored in the magazine below the pickup head. Loads a drawer unit, a second drawer unit that is located behind the magazine, and pulls out used trays collected in the magazine from the first drawer unit, and a locking unit provided in the magazine. A chip supply device comprising: a holder for suspending and suspending the magazine in a detachable manner; and a vertical movement means for vertically moving the magazine by vertically moving the holder. When the magazine is driven to lower the magazine to a predetermined level in the lower space for magazine replacement, the locking portion rises from the holder. To <br/> to detached from the holder I, under a the magazine exchange the magazine in this state
Conveyed from the other space, and a new magazine is
A chip supply device wherein the magazine is replaced by being carried into a lower space for replacement . 2. The chip supply device according to claim 1, wherein said locking portion is a pin, and said holder has a V-shaped groove on which said pin is loaded. 3. A chip storage tray is stacked on a magazine, and a locking portion of a magazine stored therein is removably loaded on a holder, and a vertically moving means is driven to lower the holder.
Lowers the magazine to a predetermined level of the magazine replacement lower space, automatically remove the magazine lifted the locking portion from the holder from the holder, said at that state
The magazine is transported from the magazine replacement lower space, and
New magazine into the lower space for magazine replacement
A method of exchanging magazines in a chip supply device, wherein the magazines are exchanged.