JP3552537B2 - Electronic component supply method - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to electronic component supplying method electrostatic you supplied electronic components on the electronic component mounting apparatus.
[0002]
[Prior art]
A tray, which is frequently used as a method of supplying electronic components to an electronic component mounting apparatus, is generally mounted on a pallet, and the pallets are stacked and stored in a magazine. Pallet pull-out means is provided in front of the magazine, and the pull-out means is moved up and down by a vertical movement means so that the pull-out means is at the same level as the pallet mounted with the tray in the magazine in which electronic components of a desired type are stored. Then, the pallet is pulled out of the magazine, and the electronic components on the tray on the pallet thus drawn are supplied to the electronic component mounting apparatus. Note that the drawer also serves as a collection unit, and has a function of collecting a pallet with a used empty tray in a magazine.
[0003]
[Problems to be solved by the invention]
However, in the conventional electronic component supply device, it is not possible to supply the electronic component to the electronic component mounting apparatus while the drawer is performing the up-and-down operation by the vertical movement means. Since the mounting of the electronic component mounting apparatus must be interrupted, a loss time occurs during this time, and the operating rate of the electronic component mounting apparatus decreases accordingly.
[0004]
Accordingly, the present invention aims at providing a Ru electronic component feeding method can eliminate the decrease in the operating rate electronic component mounting apparatus.
[0007]
[Means for Solving the Problems]
According to the electronic component supply method of the present invention, there is provided a magazine for stacking and storing a pallet on which a tray for storing electronic components is mounted, and a plurality of first standby tables provided in front of the magazine so as to face each other. The assembled table unit, pull-out means for pulling out the pallet from the magazine to the first standby table, collection means for collecting the pallet on the first standby table into the magazine, and vertical movement means for vertically moving the table unit And a second standby table provided in front of the table unit.
The engaging unit provided on the first standby table is engaged with the first engaging portion formed at the center of the front edge of the pallet in the magazine, and the pallet in the magazine is moved from the uppermost stage of the table unit to the lowermost position. Drawing out to all the first standby tables up to the lower stage,
The level of the pallet of the first standby table is adjusted to the level of the second standby table, and the engaging units provided on the second standby table are connected to the second engaging portions formed on both front sides of the pallet. Engaging and drawing the pallet onto the second standby table;
When the mounting of the electronic components of the tray of the pallet on the second standby table to the substrate is completed, returning the pallet to the first standby table;
Drawing a pallet on the first standby table to be used next onto the second standby table, and mounting the electronic components on the tray of the pallet on a board;
While the electronic components of the tray of the pallet on the second standby table are being mounted on the substrate, the pallet returned to the first standby table is collected in an empty rack of the magazine, and the pallet in the magazine is removed from the first standby table. Withdrawing on a standby table of
And the above operation is repeated.
[0008]
According to the above configuration, the pallets on which the trays to be used in the next and subsequent times are mounted are pulled out from the magazine to the plurality of first standby tables in the upper and lower stages in advance, and the standby is performed. When the electronic parts become out of stock and become used, the used empty tray is immediately collected, a new tray of the first standby table is pulled out to the second standby table, and the electronic component mounting apparatus is used. Electronic components can be supplied.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a side view of an electronic component supply device according to an embodiment of the present invention, and FIG. 2 is a plan view of the same.
[0010]
In FIG. 1, a tray 1 is mounted on a pallet 2, and the pallets 2 are stacked and stored on a rack 4 of a magazine 3. Magazine 3 is arranged in box 5. A table unit 10 is provided in front of the magazine 3. The table unit 10 is configured such that a plurality of (three in this example) first standby tables 20 are integrally assembled on a support frame 11 in upper and lower tiers.
[0011]
Next, the structure of the table unit 10 will be described with reference to FIGS. A nut 12 is mounted on a side surface of the support frame 11, and a vertical feed screw 13 is screwed into the nut 12. A belt 15 is tuned to the output shaft of the feed screw 13 and the motor 14, and when the motor 14 rotates forward and backward, the feed screw 13 rotates forward and reverse. As a result, the nut 12 moves up and down along the feed screw 13, and the support frame 11 also moves up and down. That is, the nut 12, the feed screw 13, the motor 14, and the belt 15 serve as a means for vertically moving the table unit 10.
[0012]
Next, the structure of the first standby table 20 assembled to the support frame 11 will be described. In FIGS. 1 and 2, reference numeral 21 denotes a cylinder, and reference numeral 28 denotes an engagement unit mounted on the rod 22 of the cylinder 21. The cylinder 21 is attached to a belt 23. The belt 23 is adjusted horizontally on the pulley 24. The belt 23 rotates by being driven by a motor 25. The upper portion of each first standby table 20 is a table 26 on which the tray 1 is placed. The table 26 is made of a plate, and has a horizontally long opening 27 at the center. When the rod 22 of the cylinder 21 projects and retracts, the engagement unit 28 enters and exits the opening 27. Thus, the first standby table 20 is configured.
[0013]
In FIG. 2, a first engaging portion 6 is cut out at the center of the front edge of the pallet 2, and rollers 29, which are pivotally mounted on both sides of the tip of the engaging unit 28, engage with the engaging portion 6. I do. In FIG. 1, when the motor 14 is driven to move the table unit 10 up and down, the rollers 29 move up and down in the engaging portions 6 of the pallets 2 stored in the magazine 3 in multiple stages. When the roller 29 is positioned in the desired engaging portion 6 of the pallet 2 and the motor 25 is driven forward, the belt 23 rotates clockwise in FIG. 2 and the engaging unit 28 moves horizontally in the direction of arrow A. Thereby, the pallet 2 on which the tray 1 is mounted is pulled out onto the table 26. That is, the cylinder 21, the engagement unit 28, the belt 23, the pulley 24, the motor 25, and the like constitute drawing means for pulling out the pallet 2 in the magazine 3 onto the table 26 of the first standby table 20. The pulling-out means also serves as a collecting means for pushing and collecting the pallet 2 on the table 26 into the magazine 3 by the reverse drive of the motor 25.
[0014]
1 and 2, a second standby table 30 is provided in front of the table unit 10. A table 32 similar to the table 26 is also provided above the support frame 31 of the second standby table 30, and a horizontally long opening 33 is opened in the center of the table 32. A belt 34 is provided below the opening 33. The belt 34 is adjusted horizontally on the pulley 35. The belt 34 is rotated by a motor 36.
[0015]
The engagement unit 37 is attached to the belt 34. The engaging unit 37 protrudes upward from the opening 33, and a roller 38 that engages with a second engaging portion 7 formed by cutting out the front side of the pallet 2 is provided at the tip end of the engaging unit 37. ing.
[0016]
When the motor 36 is driven to rotate the belt 34, the engagement unit 37 moves in the horizontal direction. With the engagement unit 37 moved forward to the first standby table 20 on the left, the table unit 10 can be moved up and down to engage the roller 38 with the second engagement portion 7.
[0017]
In FIG. 1, a transport path 41 for a substrate 40 is provided in front of the second standby table 30. Reference numeral 42 denotes a transfer head of the electronic component mounting apparatus. The transfer head 42 picks up the electronic component 44 stored in the tray 1 on the second standby table 30 by vacuum suction at the lower end of the nozzle 43 and mounts it on the substrate 40 on the transport path 41 (arrow C). .
[0018]
This electronic component supply device is configured as described above, and the overall operation will be described next. 3 to 16 are side views of the electronic component supply device according to the embodiment of the present invention, and sequentially show an example of a driving operation. 3 to 16 are simply drawn. FIG. 3 shows an initial state, in which the table unit 10 faces the magazine 3. First, as shown in FIG. 4, the table unit 10 is slightly lowered (arrow a), and the pallet 2 used first is pulled out of the magazine 3 onto the first standby table 20 at the top (arrow b). . Next, as shown in FIG. 5, the second pallet 2 to be used is pulled out from the magazine 3 on the first standby table 20 at the middle stage (arrow c). Next, as shown in FIG. 6, the third pallet 2 used on the lowermost first holding table 20 is pulled out from the magazine 3 (arrow d). As described above, the pallets 2 are pulled out onto all (three in this example) first standby tables 20 of the table units 10.
[0019]
Next, as shown in FIG. 7, the table unit 10 is raised to adjust the level of the first (uppermost) pallet 2 to the level of the second standby table 30 (arrow e). 2 is drawn out on the standby table 30 (arrow f). The electronic components 44 of the tray 1 pulled out onto the second standby table 30 are vacuum-adsorbed and picked up by the nozzles 43 of the transfer head 42 as shown in FIG. When the mounting is completed, the pallet 2 on the second standby table 30 is returned to the first standby table 20 (arrow g in FIG. 8).
[0020]
Next, as shown in FIG. 9, the first standby table 20 is raised to the same level as the second standby table 30 (arrow h), and the pallet 2 is pulled out onto the second standby table 30 (FIG. 10). Arrow i). Next, as shown in FIG. 11, the electronic components 44 of the tray 1 on the second standby table 30 are mounted on the substrate 40 by the transfer head 42 in the same manner as in FIG. The unit 10 is lowered slightly (arrow j), and the pallet 2 collected on the first standby table 20 at the uppermost stage is directly opposed to the empty rack 4 of the magazine 3, and then, as shown in FIG. 2 is collected on the rack 4 of the magazine 3 (arrow k).
[0021]
Next, the fourth pallet 2 to be used is pulled out onto the first standby table 20 at the top (arrow 1 in FIG. 13). At this time, the electronic components of the tray 1 on the second standby table 30 are being mounted on the board 40.
[0022]
Next, when the mounting of the electronic components on the tray 1 on the second standby table 30 is completed, the pallet 2 is collected on the first standby table 20 in the middle stage (arrow m in FIG. 14). Next, as shown in FIG. 15, the lowermost first standby table 20 is set to the same level as the second standby table 30 (arrow n), and the pallet 2 is placed on the second standby table 30 as shown in FIG. Drawer (arrow o), mounting of electronic components on tray 1 on pallet 2 is started. Next, similarly, the second used pallet 2 is collected in the empty rack 4 of the magazine 3, and the fifth used pallet 2 is pulled out onto the first standby table 20. Hereinafter, the same operation as described above is repeated. The operator takes out the pallet 2 on which the empty tray 1 collected in the magazine 3 is mounted as appropriate, and replenishes the pallet 2 on which the new tray 1 is mounted.
[0023]
【The invention's effect】
According to the present invention, by pulling out a plurality of pallets mounted with trays to be used in the next and subsequent times from a magazine to a plurality of first standby tables in a plurality of upper and lower stages and holding them, the second standby table When the upper tray is used up, the used empty tray is immediately collected, the tray on the first standby table is pulled out to the second standby table, and the electronic component is supplied to the electronic component mounting apparatus. can do. Therefore, the tray replacement can be performed very well and the operation rate of the electronic component mounting apparatus can be improved.
[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 an electronic component supply device according to an embodiment of the present invention; FIG. FIG. 4 is a side view of an electronic component supply device according to one embodiment of the present invention. FIG. 5 is a side view of an electronic component supply device according to one embodiment of the present invention. FIG. 7 is a side view of an electronic component supply device according to an embodiment of the present invention. FIG. 7 is a side view of an electronic component supply device according to an embodiment of the present invention. FIG. 9 is a side view of an electronic component supply device according to one embodiment of the present invention. FIG. 10 is a side view of an electronic component supply device according to one embodiment of the present invention. FIG. 12 is a side view of an electronic component supply device according to an embodiment of the present invention. FIG. 13 is a side view of an electronic component supply device according to an embodiment of the present invention. FIG. 14 is a side view of an electronic component supply device according to an embodiment of the present invention. FIG. 14 is a side view of an electronic component supply device according to an embodiment of the present invention. FIG. FIG. 16 is a side view of an electronic component supply device according to an embodiment of the present invention.
REFERENCE SIGNS LIST 1 tray feeder 2 pallet 3 magazine 10 table unit 11 support frame 12 nut 13 feed screw 14 motor 15 belt 20 first standby table 23 belt 25 motor 26 table 28 engagement unit 30 second standby table 32 table 34 belt 36 motor 37 Engagement unit

Claims (1)

A magazine for stacking and storing pallets on which trays for storing electronic components are mounted, a table unit provided directly in front of the magazine, and having a plurality of first standby tables assembled in upper and lower tiers; Means for pulling out the pallet from the pallet to the first standby table, collection means for collecting the pallet on the first standby table into the magazine, vertical movement means for vertically moving the table unit, and provided in front of the table unit An electronic component supply method using an electronic component supply device having a second standby table.
The engaging unit provided on the first standby table is engaged with the first engaging portion formed at the center of the front edge of the pallet in the magazine, and the pallet in the magazine is moved from the top of the table unit to the lowest. Drawing out to all the first standby tables up to the lower stage,
The level of the pallet of the first standby table is adjusted to the level of the second standby table, and the engaging units provided on the second standby table are connected to the second engaging portions formed on both front sides of the pallet. Engaging and withdrawing the pallet onto the second standby table;
When the mounting of the electronic components of the tray of the pallet on the second standby table to the substrate is completed, returning the pallet to the first standby table;
Drawing a pallet on the first standby table to be used next on the second standby table, and mounting the electronic components on the tray of the pallet on a board;
While the electronic components of the trays of the pallet on the second standby table are being mounted on the board, the pallets returned to the eleventh standby table are collected in an empty rack of the magazine, and the pallets in the magazine are removed from the first pallet. Withdrawing on a standby table of
And an electronic component supply method comprising repeating the above operation.

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