JPH0333477B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a feeding device for automatically feeding a printed board to a press machine for punching and molding it.

(Conventional technology) When manufacturing printed circuit boards on which IC electric circuits are wired, first, a printed original board with a large number of wiring patterns is created by etching, and then the printed original board is made into a single printed board using a press or the like. Each pattern must be punched out. This punching process requires drilling a guide hole at a certain distance from the wiring pattern in advance, and positioning it by inserting a pin protruding into the mold of the press machine through the guide hole. Currently, this is done manually by workers. Therefore, it requires time and effort, and is a major hurdle in automating the process.

Therefore, in order to solve this problem, we have
Several types of automatic devices have been proposed, such as a CCD device equipped with a computer control mechanism for positioning, but these devices are complex and require precise numerical control, so they are not economically viable. It has the disadvantage of being expensive.

(Problems to be Solved by the Invention) Therefore, the present invention focuses on the characteristic that one side of the four sides of the quadrilateral of the printed original board is accurately positioned with respect to the wiring pattern,
The aim was to utilize this characteristic to develop an automatic feeder with a simple and accurate mechanism.

[Structure of the Invention] The automatic feeder for printed circuit boards of the present invention has an adjustment table 3 that receives a printed original board G on which a plurality of wiring patterns are formed, which is sent from a feed belt or the like. , pins 3c, 3 that slide the print original G to the commanded position in conjunction with the hole position confirmation sensor 3d.
c′ are arranged in parallel with each other in an independently driven state. Then, on one side of the adjustment table 3, a stop pin 3e that is accurately positioned with respect to the reference side G3 of the print original plate G is fixed, and on the other side, a horizontal axis that presses the print original plate G against the stop pin 3e. A feeding mechanism 3f is provided. The present invention is further characterized by having a slide mechanism 4 for transferring the positioned printing original plate G to the mold 5a of the press machine 5.

(Example) An example will be described below based on the drawings. The original print board G to which the present invention is applied is as shown in FIG. A pattern G1 is formed around which a guide hole G2 is positioned accurately with respect to the wiring pattern G1.
However, even though three of the four outer edges are arbitrary during manufacturing, one (reference side G3) has a characteristic that it is a parallel straight line accurately positioned with respect to the wiring pattern. This is represented by a chain line G3 in the drawing.

Next, FIG. 2 is an overall view of the apparatus of the present invention for processing the original print plate G.
A storage shelf 1 for loading items is provided so as to be able to be raised and lowered by a lifter, and a charging cylinder 1a with a suction cup is arranged above. A heater 2 using infrared rays or a heating wire as a heat source is placed below the charging cylinder 1a to soften the base resin and improve workability.
A vertical conveyor 2a for transfer is placed inside.
Allocate.

Next, a first feed belt 3a is connected to the heater 2 to transport the original print plate G, and an adjustment table 3 for positioning the original print plate G is provided at the tip thereof. This adjustment table 3 constitutes the main part of the present invention, and as shown in FIG.
A second conveying belt 3b for conveying the original printing plate G sent from the second conveying belt 3b is disposed so that its tip can be raised and lowered freely. Two pins 3c and 3c' slightly protruding from the table are arranged side by side on the front side of the abutment in the advancing direction in order to adjust the print original G in the longitudinal axis direction of the original G (the traveling direction of the original G).
These pins 3c, 3c' are the hole position confirmation sensor 3d.
In other words, a hole position confirmation sensor 3d for confirming the guide hole G2 of the printing original plate G is provided above the stop line N drawn on the adjustment table 3, and this hole position confirmation sensor 3d When the guide hole 3d of the print original plate G is detected,
The pins 3c and 3c' are provided so as to be stopped by the command. This hole position confirmation sensor 3d is
For example, an optical sensor that detects when light passes through the guide hole 3d of the print original plate G can be used, and it is preferable to use a laser optical sensor that can detect even a small diameter hole.

On the other hand, in the horizontal direction of the adjustment table 3, in order to accurately position the reference plate G3 side of the printing original plate G,
A stop pin 3e is provided on one side so as to be freely retractable, and a horizontal shaft feeding mechanism 3f for pressing the original plate G against the stop pin 3e is provided on the opposite side. It consists of a telescopic mechanism such as sliding with a piston.

Further, above the adjustment table 3, a suction cup 4a is arranged at the tip of a transfer rod along the transfer rod leading to the press 5, in order to transfer the print original G that has been accurately positioned by the above device to the mold 5a of the press 5. A transport mechanism 4 that can be slid freely is provided.

(Function) To use the device of the present invention, first, print originals G are loaded on the storage shelf 1 so that the reference side G3 faces the side with respect to the direction of travel, and then loaded onto the leaning conveyor 2a using the input cylinder 1a. and send them out in sequence. During the process, in order to improve workability, the base resin is softened by heat from the heater 2, and then placed on the first feed belt 3a, and then on the second feed belt 3b.
(After this, the second feed belt 3b is lowered.)

Next, after placing the printing original plate G on the second feeding belt 3b and advancing it, the pin 3c in front of it,
Stop when it hits 3c'. At this time,
The pins 3c and 3c' are placed on standby at a position slightly beyond the stop line N of the table 3 (on the right side in the drawing) for later position adjustment (see FIG. 4A).

Next, when the original plate G comes into contact with the pins 3c and 3c' and stops, the horizontal shaft feed mechanism 4 linked thereto is activated, the piston of the air cylinder 3h is extended, and the printing original plate G is moved by the contact frame 3g. Press,
Press it against the stop pin 3e fixed on the opposite side.
At this time, the fixed position of the stop pin 3e is
Calculate backward from the position of the mold 5a and place it at an accurately positioned position that coincides with the mold 5a. Then, using the stop pin 3e as a reference, the print original plate G
Since the reference side G3 of is positioned at a certain distance, it is accurately positioned in the horizontal axis direction (see FIG. 4B).

Next, the pins 3c and 3c' slightly beyond the stop line N of the table 3 are slid to send the original print plate G in the return direction, and the hole position confirmation sensors 3d and 3d' provided on the stop line N When the guide hole G2 is at a position where it can be confirmed, the pins 3c and 3c' are stopped by the command. At this time, the hole position confirmation sensor 3d is placed at an accurately positioned position by calculating backward from the position of the mold 5a of the press 5, similar to the stop pin 3e. The pins 3c and 3c' are driven independently of each other, so that even if one hole is accurately positioned, if the other is inaccurate, it slides until it is positioned accurately, and the guide hole G2 Adjust until the two points are captured accurately. As a result, the two points positioned by the hole position confirmation sensors 3d and 3d' in the vertical axis direction are accurately determined, and the print original plate G as a whole is accurately positioned in the vertical and horizontal axis directions (the fourth (See Figure C).

Then, by transferring this accurately positioned printing original plate G to the mold 5a of the press machine 5 using the slide mechanism 4, the pins of the mold 5a and the guide holes G2 of the printing original plate G are automatically connected. It can be mounted on a shaft and punched into a single pattern using a press (see FIG. 4D).

[Effects of the Invention] As described above, the present invention utilizes the characteristics of the printed original board, so that the stop pin 3e is moved along the horizontal axis based on one side of the quadrilateral that is accurately positioned with respect to the wiring pattern. The function of the mechanism 3f etc. enables accurate positioning in both the vertical and horizontal directions.
Therefore, using the relatively simple mechanism described above, it is possible to accurately position the printing plate G to the mold 5a, which is extremely economical compared to the conventional complicated and expensive equipment controlled by a computer. and accurate work can be realized.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a plan view of a printing original plate, FIG. 2 is an overall view of the apparatus of the present invention, A is a side view, B is a plan view, and FIG. 3 is a main part of the invention. FIGS. 4A to 4D are schematic plan views showing the positioning operation of the apparatus of the present invention. 1... Storage shelf, 2... Heater, 3... Adjustment table, 3a... First feed belt, 3b... Second feed belt, 3c, 3c'... Pin, 3d... Hole position confirmation sensor, 3e...Stop pin, 3f...Horizontal shaft feed mechanism, 4...Slide mechanism, 5...Press machine.

Claims (1)

[Claims] 1. It has an adjustment table 3 that receives a printed original plate G on which a plurality of wiring patterns are formed, and on the front side of the adjustment table 3, prints are made up to the commanded position in conjunction with a hole position confirmation sensor 3d. Pins 3c and 3c' for sliding the original plate G are arranged side by side in an independently driven state, and on the side of the adjustment table 3, on one side, a stop pin 3e is accurately positioned with respect to the reference side G3 of the printing original plate G. A horizontal shaft feeding mechanism 3f is provided on the opposite side to press the print original plate G against the stop pin 3e thereof, and a slide mechanism 4 is further provided to transfer the printed original plate G after positioning to the mold 5a of the press machine 5. A device for feeding printed circuit boards to a press machine.