JPH06565B2 - Printed circuit board supply and removal method - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to printed circuit board supply accompanying electronic component mounting technology,
It relates to the takeout method.

2. Description of the Related Art A conventional method for supplying and taking out a printed circuit board of this kind has been the following method using a mechanism as shown in FIG.

That is, when the board storage box 2 full of printed boards is placed on the conveyor 1, the board storage box 2 is moved by the conveyor 1.
Are transferred to the lifting table 3. When the substrate storage box 2 is fixed on the lift table 3, the lift table 3 is raised by the vertical pitch of the substrate holding grooves 4 in the substrate storage box 2, and one by one by the substrate extraction device each time. The printed circuit board is taken out. When the board storage box 2 reaches the highest position, the printed boards are all taken out and discharged onto the conveyor 5. Thereafter, the elevating table 3 descends to the original position in order to receive the board storage box 6 in which the next printed board is fully loaded.

However, in such a method, the time during which the elevating table 3 reaches the highest position and discharges the substrate storage box 2 and then descends to the original position becomes a loss time, which lowers the operating rate. It is one of the causes. Therefore, the present invention is intended to prevent this loss time when the lift is lowered.

Means for Solving the Problems And the technical means of the present invention for solving the above problems are to raise the vertical height of the substrate holding groove in the substrate storage box by twice the vertical pitch when raising the lifting platform. However, every other printed circuit board is taken out, and the remaining half of the boards are taken out when the board is lowered without discharging the board storage box to the highest position.

Action The action of this technical means is as follows. That is, if the elevator is raised by twice the vertical pitch of the substrate holding grooves in the substrate storage box, when the elevator reaches the maximum position, every other half of the printed circuit boards are placed in the substrate storage box. Remaining. Even when the platform is lowered, the substrate storage box is placed on the platform and lowered at the same pitch as when it was raised, and the remaining half of the substrates are taken out. When the elevating table returns to the original position, the elevating table is rotated 90 ° in the horizontal plane to eject the board storage box, and then returned to the original direction to receive the next board storage box full of printed boards.

By this method, it is possible to eliminate the loss time when the conventional elevator is lowered.

Embodiments Hereinafter, a printed circuit board supply / removal method according to an embodiment of the present invention will be described with reference to the drawings. In FIG. 1, 7 is a conveyor, 8, 9 and 10 are substrate storage boxes, 11 is a lift, and 12 is a substrate holding groove. 2 is a plan view of FIG. 1, 13 and 14 are conveyors, and 15 and 16 are conveyors 1.
3, 14 are substrate storage box transfer chains, 17 and 18 are substrate storage boxes, 11 is a lift table that can rotate in a horizontal plane, 19 is a substrate storage box transfer chain of the lift table 11, and 20 is a lift table 11. , A ball screw for lowering.

The operation will be described using the printed circuit board supply / removal mechanism configured as described above.

The substrate storage box 10 transferred onto the lift table 11 by the conveyor 7 is fixed on the lift table 11 and is raised by twice the vertical pitch of the substrate holding grooves 12, and every other printed circuit board is taken out. . When the lift table 11 moves up to the highest position, half of the printed circuit boards remain in the board storage box 10, but they are taken out one by one when the lift table 11 is lowered at the same pitch. When the lift table 11 returns to the original position, all the printed boards in the board storage box 10 are taken out.

The plan view of FIG. 2 shows a method of carrying in and carrying the substrate storage box. The board storage box 17 is carried in the X direction on the lift table 11 by the chains 15 and 19, and when all the printed boards are taken out and the lift table 11 returns to its original position, the lift table 11 rotates 90 ° and the chain 19 moves. , 16 to carry out the substrate storage box 17 in the Y direction.

As described above, according to the present invention, every other printed circuit board is taken out when the substrate storage box full of printed circuit boards is raised, and the remaining printed circuit boards are taken out one by one when it is lowered. It is possible to eliminate the loss time that occurs when lowering the lifting table as in the past.

[Brief description of drawings]

FIG. 1 shows a printed circuit board supply in one embodiment of the present invention,
FIG. 2 is a plan view of the take-out device, FIG. 2 is a plan view of the take-out device, and FIG. 3 is a front view of a conventional printed circuit board supply and take-out device. 1,5 ... Conveyor, 2,6 ... Substrate storage box, 3 ... Lift,
7, 13, 14 ... Conveyor, 8, 9, 10, 17, 18
... Substrate storage box, 11 ... Elevating table, 15, 16, 19 ... Chain.

Claims (1)

[Claims] 1. A substrate storage box full of printed circuit boards is transferred to and fixed on an elevating table, and then the elevating table is lifted by twice the vertical pitch of the substrate holding grooves in the substrate accommodating box to set the printed circuit board to 1 After picking up every other board, after reaching the uppermost position of the elevator, lower the elevator at the same pitch as when ascending and pull out half of the fully loaded PCB remaining in the board storage box. , How to take out.