JPH07142893A - Printed circuit board supply mechanism - Google Patents

Abstract

PURPOSE:To shorten supply cycle time with less space and cost in a mechanism for taking out printed circuit boards on a rack one by one and supplying it to a conveyer. CONSTITUTION:A printed circuit board supply mechanism comprises a mechanism for allowing an arm 2 holding a printed circuit board 6 with a clamper 3 to vary an angle from 90 deg. to an acute angle with a tip of a rotation frame 1 as a fulcrum 8b and a frame base having a fulcrum 8a of the rotation frame 1 and sliding to and fro, whereby wait time for supply operation (time for waiting a printed circuit board 6 supplied onto a conveyer 9 to move and time for waiting a rack 7 to advance by one pitch by a rack feed mechanism 5) is eliminated, thereby shortening supply cycle time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed wiring board supply mechanism for taking out printed wiring boards one by one in a printed wiring board manufacturing process and mounting them on a conveyor device.

[0002]

2. Description of the Related Art FIG. 4 is a side view showing an example of a conventional printed wiring board supply mechanism. The conventional mechanism is 9
A rotating frame 1 that rotates strongly by 0 °, and an arm 2c provided at the tip of the rotating frame 1 at a right angle to the rotating frame 1.
And the arm 2 is opened and closed at the tip of the rotating frame 1.
The clamper 3 for sandwiching the printed wiring board 6 with the root of c, the frame base 4b having the fulcrum 8a of the rotating frame 1, and the rack 7 carrying the printed wiring board 6 are advanced toward the arm 2c side by one pitch. It has a rack feeding mechanism 5 for allowing the printed wiring board 6 to be mounted on the conveyor device 9.

FIG. 5 is a side view showing another example of a conventional printed wiring board supply mechanism.

The mechanism of this example comprises rotating frames 1a and 1b which are symmetrical with respect to a fulcrum 8a and rotate in one direction, and arms 2a which are provided at the tips of the rotating frames 1a and 1b at right angles to the respective rotating frames. 2b and rotating frame 1
Clampers 3a and 3b that open and close at the tips of a and 1b and hold the printed wiring board 6 between the arms 2a and 2b and the roots of the rotating frames 1a and 1b. The rack 7 having the printed wiring board 6 mounted thereon has a rack feed mechanism 5 for moving the racks 7a and 2b forward by 1 pitch, and the conveyor device 9 has the printed wiring board 6 mounted thereon.

[0005]

The conventional printed wiring board supply mechanism has the following problems. First, as shown in FIG. 4, (1) the printed wiring board 6 is attached to the conveyor device 9.
After mounting the printed wiring board 6 and the arm 2c
In order to avoid contact with the rotating wiring frame 1, the rotating frame 1 could not be returned for the next printed wiring board until the rear end of the printed wiring board 6 completely passed over the arm 2c.
(2) During the operation of returning the rotating frame 1, in order to avoid contact between the next printed wiring board and the clamper 3, the rack 7 cannot be advanced until the returning operation of the rotating frame 1 is completed. Due to the reasons (1) and (2) above, there is a problem in that a waiting time for operation is generated, and the supply cycle time of the printed wiring board becomes long.

Further, in FIG. 5, two sets of arms are provided in order to solve the above problems, and the rotating frames 1a and 1b are rotated only in one direction to shorten the supply cycle. ) A large space is required to rotate the arms 2a, 2b, (4) Arm 2
a, 2b, clampers 3a, 3b, etc. must be manufactured for 2 sets, resulting in high cost. (5) It is difficult to drive air pipes for the clampers 3a, 3b and wiring of operation confirmation sensor. There were problems such as.

[0007]

SUMMARY OF THE INVENTION A printed wiring board supply mechanism of the present invention is a rotating frame that rotates strongly by 90 ° at the same time on the left and right, and an angle of 90 ° or less provided at the tip of the rotating frame with this tip as a fulcrum. A variable arm, a clamper that opens and closes at the tip of the rotating frame and holds the printed wiring board between the base of the arm, a frame base that has a fulcrum of the rotating frame and can slide back and forth, and a printed wiring board. It has a rack feed mechanism for advancing the plate mounting rack toward the arm side by one pitch.

[0008]

The present invention will be described below with reference to the drawings.

FIG. 1 is a side view of a printed wiring board supply mechanism according to an embodiment of the present invention, FIGS. 2 (A), 2 (B), 3 (C),
(D) is a side view for sequentially explaining the operation of the printed wiring board supply mechanism in FIG. 1.

As shown in FIG. 1, the printed wiring board supply mechanism of this embodiment has an arm 2 which can change the angle to 90 ° or less with the tip of the rotary frame 1 as a fulcrum 8b.
A clamper 3 that opens and closes at the tip of the rotating frame 1 and holds the printed wiring board 6 between it and the root of the arm 2.
And a frame base 4 and a printed wiring board 6 which have a fulcrum 8a of the rotating frame 1 and can slide back and forth.
It is composed of a rack feed mechanism 5 for advancing a rack 7 carrying the above to the arm 2 side by one pitch.

Next, the operation of this embodiment will be described with reference to FIGS.

First, as shown in FIG. 2 (A), while the rotating frame 1 is rising, one printed wiring board 6 is inserted between the arm 2 and the clamper 3 and lifted, and when the rack 7 is removed, the clamper 3 is closed. The printed wiring board 6 is sandwiched, and the rotary frame 1 is raised while sliding the frame base 4 forward (in the direction of the arrow). Next, in FIG. 2B, the clamper 3 is opened immediately before the arm 2 becomes horizontal, and the printed wiring board 6 is mounted on the conveyor device 9. At the same time, the arm 2 is bent at an acute angle so that the rotating frame 1 can descend. During this time, the rack feed mechanism 5 feeds the rack 7 by one pitch.

Next, referring to FIG. 3C, the rotary frame 1
Starts to descend, passes through the rear end of the printed wiring board 6 supplied by the tip of the arm 2, and then the angle of the arm 2 is returned from the acute angle to 90 °. Finally, in FIG. 3 (D), when the rotating frame 1 reaches the lower end, the frame base 4 is slid back to the rear side (in the direction of the arrow), and the next printed wiring board supply system is started.

As described above, according to this embodiment, the supply cycle time of one printed wiring board can be 5 seconds / cycle, which is 8 seconds / cycle in the conventional case.

[0015]

As described above, according to the present invention, the rotating frame that reciprocates strongly by 90 °, the arm that can be bent at an acute angle provided at the tip of the rotating frame, and the opening and closing operation at the base of the arm. By providing a clamper, a frame base that has a fulcrum of a rotating frame and can slide back and forth, and a rack feed mechanism that advances the rack mounted with a printed wiring board by one pitch, the waiting time for operation is eliminated, The supply cycle can be shortened. Further, the present invention does not require a large space and high cost as in the conventional example shown in FIG. 5, and has no difficulty in piping and wiring.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of the present invention.

FIG. 2 is an operation explanatory diagram of the present embodiment, and is a diagram (A) and (B) in FIG.
Are side views, respectively.

FIG. 3 is an operation explanatory diagram subsequent to FIG. 2 and is shown in FIGS.
Are side views, respectively.

FIG. 4 is a side view showing a conventional supply mechanism.

FIG. 5 is a side view showing another conventional supply mechanism.

[Explanation of symbols]

 1, 1a, 1b Rotating frame 2, 2a, 2b, 2c Arms 3, 3a, 3b Clamper 4, 4a, 4b Frame base 5 Rack feeding mechanism 6 Printed wiring board 7 Racks 8a, 8b Support point 9 Conveyor device

Claims (1)

[Claims] 1. A printed wiring board standing on a rack is
In a printed wiring board supply mechanism to be taken out one by one and mounted on a conveyor device, a rotating frame that rotates strongly by 90 ° simultaneously on the left and right, and an arm that is provided at the tip of the rotating frame and whose angle can be varied below 90 ° with this tip as a fulcrum. And a clamper that opens and closes at the tip of the rotating frame and holds the printed wiring board between the base of the arm and
A frame base that has a fulcrum of a rotating frame and can slide back and forth, and a rack with a printed wiring board mounted on the arm side 1
A printed wiring board supply mechanism, comprising: a rack feed mechanism that advances by pitch.