JPH07178694A - Cutting device for printed board - Google Patents

Abstract

PURPOSE:To cut a printed circuit board without using an exclusive use metal mold and further in a short time. CONSTITUTION:A printed circuit board 2 is conveyed by a conveyer 22, and when one end part of the printed circuit board 2 is positioned between dies 19 and a punch 20 of a hydraulic press 15, the punch 20 is lowered down to cut the one end part of the printed circuit board 2 by action cooperative with the dies 19. Thereafter, the printed circuit board 2 is conveyed a prescribed distance by the conveyer 22, and the other end part of the printed circuit board 2 is positioned between the dies 19 and the punch 20. Under this condition, the punch 20 is again lowered down to cut the other end part of the printed circuit board 2 by action in cooperation with the dies 19.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is suitable for cutting a so-called multi-cavity printed circuit board to obtain a plurality of divided printed circuit boards from the multi-cavity printed circuit board. It is about.

[0002]

2. Description of the Related Art In the case of dividing a multi-printed printed circuit board into a plurality of printed circuit boards, conventionally, a die including a die and a punch is attached to a press machine and punched into a plurality of printed circuit boards by the die. , It was divided into a plurality of printed boards by a rotary blade.

[0003]

However, in the case where a plurality of printed circuit boards are punched out by a mold, a dedicated mold is required for each type of printed circuit board, which increases the cost of manufacturing the mold. . Further, in the case of using the rotary blade, cutting chips are generated, which adversely affects the electronic components mounted on the printed circuit board, and it takes time to cut, resulting in poor productivity.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a printed board cutting apparatus which can cut a printed board in a short time without using a dedicated mold.

[0005]

A device for cutting a printed circuit board according to the present invention comprises a positioning device for positioning the printed circuit board at a predetermined position, a carrying device for carrying the printed circuit board positioned by the positioning device, and a carrying device for carrying the printed board. A die and a punch for cutting the printed circuit board conveyed by the device along a direction intersecting the conveying direction of the printed circuit board, and the printed circuit board is conveyed between the dice and the punch by a conveying device. A configuration in which after cutting with a die and a punch, the printed circuit board is conveyed with a conveying device and the printed board is cut with a dice and a punch at least once to cut the printed circuit board into a length corresponding to a conveying distance by the conveying device. It is characterized by that.

[0006]

In general, a plurality of printed circuit boards are provided with a plurality of slits in advance. This multi-printed printed circuit board is conveyed between the dice and the punch by a conveying device, and one end of the printed circuit board is cut by the dice and the punch. Then, the printed board is carried by a carrying device for a predetermined distance, and the other end of the printed board is cut by a die and a punch. As a result, one printed circuit board is divided into a plurality of printed circuit boards.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIG. 6, a rack 3 accommodating a large number of printed circuit boards 2 is set on one end side of the main body 1 of the cutting device. The main body 1 is provided with an air cylinder 4 shown in FIG. 3 on the left side of the rack 3 in the drawing, and the rod 4a of the air cylinder 4 is moved forward to move the rack 3
The printed circuit board 2 stored in the above is pressed and sent to the pair of guide rails 5a and 5b shown in FIG. Note that the guide rails 5a and 5b are omitted in FIG.

A groove 6 is formed in the pair of guide rails 5a and 5b, and both widthwise sides of the printed circuit board 2 are slidably fitted and held in the groove 6.
Of the pair of guide rails 5a and 5b, one guide rail 5a is fixed, and the other guide rail 5b is provided so as to be movable in the width direction of the printed circuit board 2. Then, when the handle 7 shown in FIG. 6 is rotated, the guide rail 5b is moved by a screw mechanism (not shown), so that the distance between the pair of guide rails 5a and 5b can be adjusted to a dimension that matches the width dimension of the printed circuit board 2. Is configured.

The printed circuit board 2 sent to the guide rails 5a and 5b by the rod 4a of the air cylinder 4 is positioned at a predetermined position by a positioning device 8 shown in FIG. The positioning device 8 includes a mounting plate 9 that is moved up and down by an air cylinder (not shown), a motor 10 with a speed reducer attached to the mounting plate 9, and a screw that is rotationally driven by the motor 10 via a gear transmission mechanism 11. It is composed of a rod 12, a nut 13 screwed to the screw rod 12, and a locking plate 14 attached to the nut 13.

The positioning by the positioning device 8 is performed with the mounting plate 9 raised by an air cylinder (not shown). That is, when the printed circuit board 2 is sent from the rack 3 to the guide rails 5a and 5b by the advancing operation of the rod 4a of the air cylinder 4, the printed circuit board 2 contacts the locking plate 14 and stops at that position. Thereafter, the rod 4a of the air cylinder 4 moves backward, and then the mounting plate 9 is lowered by an air cylinder (not shown), so that the printed circuit board 2 comes into contact with the locking plate 14 and is positioned at the stopped position. It will be in a state of being stuck.

Then, the motor 10 of the positioning device 8
When the screw rod 12 is rotated in the normal and reverse directions, the screw rod 12 is rotated in the normal and reverse directions to reciprocate the nut 13 and thus the locking plate 14 in the longitudinal direction of the printed circuit board 2. By adjusting the position of the locking plate 14 in this manner, the stop position of the printed board 2 can be changed when the printed board 2 has a different length.

The body 1 has guide rails 5a, 5
A small hydraulic press 15 is arranged at a position opposite to the rack 3 with b interposed therebetween. A hydraulic cylinder 17 is provided above the frame 16 of the hydraulic press 15.
Then, as shown in FIG. 1, the bed 18 of the frame 16 is
A die 19 is fixed to the rod, and a punch 20 is attached to a rod (not shown) of the hydraulic cylinder 17.

An elongated punching hole 19a is formed in the die 19, and the punch 20 cooperates with the punching hole 19a to cut the printed board 2 linearly in the width direction. Actually, the punching holes 19a and the punches 20 are used to punch and form slits in the printed circuit board 2. The lengths of the punching holes 19a and the punches 20 are the same as those of the printed circuit board to be cut by the present cutting device. Since the width of the printed board is set to be larger than the maximum width of the printed board, the printed board 2 is cut by punching the slits.

Further, on the main body 1, the hydraulic press 1 is arranged from the position where the printed circuit board 2 is positioned by the positioning device 8.
A transport device 22 is provided for transporting to the chute 21 provided on the opposite side of the guide rails 5a and 5b with the sheet 5 interposed therebetween. As shown in FIGS. 4 and 5, the carrying device 22 is provided with a threaded rod (not shown) provided in a long casing 23 and driven by a servomotor, and the threaded rod is screwed into the threaded rod. A nut (also not shown) that is reciprocally moved by forward and reverse rotations of the rod and a mounting plate 24 attached to the nut are provided. And, in the mounting plate 24,
For example, an elevating plate 25 that is moved up and down by an air cylinder is provided, and a frame 26 is attached to the elevating plate 25. Further, four hawks 27a to 27d for receiving the printed circuit board 2 are attached to the frame body 26, and two hawks 27a, 27d on the outer side of the four hawks 27a to 27d are attached to the printed circuit board 2.
A pin 28 that fits into the small hole 2a formed in is attached.

In the carrying device 22, the rotation speed of the screw rod is controlled by controlling the rotation speed of the servo motor, whereby the nuts and thus the forks 27a to 27d are controlled.
It is configured so that the conveyance distance of the printed circuit board 2 can be controlled.

Thus, the printed board 2 is preliminarily formed with a plurality of slits 2b along the longitudinal direction.
The printed circuit board 2 is housed in the rack 3 with electronic components (not shown) mounted thereon.

Next, the operation when the printed board 2 is cut by the cutting device configured as described above will be described. First, with the mounting plate 9 of the positioning device 8 raised by an air cylinder (not shown), the rod 4 of the air cylinder 4 is moved.
a moves forward. Then, the printed circuit board 2 is sent from the single rack 3 to the guide rails 5a and 5b, and the printed circuit board 2 comes into contact with the locking plate 14 and stops. After this,
The rod 4a of the air cylinder 4 moves backward, and the mounting plate 9 is lowered by an air cylinder (not shown),
The printed circuit board 2 comes into contact with the locking plate 14 and is positioned at a predetermined position (conveyance start position) stopped.

On the other hand, the lift plate 25 of the transfer device 22 is lowered by an air cylinder (not shown), and in this state, the mounting plate 24 prints with the pins 28 of the forks 27a and 27d positioned at the transfer start position. The substrate 2 is moved in the direction of the arrow A or in the direction opposite to the arrow A until reaching a position where the substrate 2 is aligned with the small hole 2a. After that, the lift plate 25 is lifted by an air cylinder (not shown),
The pins 28 of the hawks 27a and 27d are fitted into the small holes 2a of the printed board 2.

When the pin 28 is fitted into the small hole 2a, the mounting plate 24 of the carrying device 22 then moves a predetermined distance in the direction of arrow A to carry the printed circuit board 2 in the same direction. And FIG.
As shown in FIG. 5, when one end of the printed circuit board 2 on the transfer direction side is positioned between the die 19 and the punch 20 of the hydraulic press 15, the mounting plate 24 of the transfer device 22 stops there.

When the printed circuit board 22 stops, the hydraulic cylinder 17 of the hydraulic press 15 lowers the punch 20.
As a result, the punch 20 moves the die 19 into the die hole 19a.
The one end of the printed circuit board 2 is cut in cooperation with. This cutting position is shown by line B in FIG. In FIG. 1, 29
Is a pressing member urged downward by the compression spring 30,
This is for pressing the printed board 2 against the die 19 during cutting.

When the punch 20 is lifted by the hydraulic cylinder 17 after cutting one end of the printed circuit board 2, the mounting plate 24 of the carrying device 22 moves in the direction of arrow A by a predetermined distance, and the other end of the printed circuit board 2 is moved. Die 19 and punch 20
Located between and. Then, the punch 20 is lowered again by the hydraulic cylinder 17 and the die hole 19 of the die 19
The other end of the printed circuit board 2 is cut by the cooperation with a. This cutting position is shown by line C in FIG.

It should be noted that the printed circuit board 2 is moved by the carrying device 22.
In order to prevent the forks 27a to 27d from coming into contact with the die 19, the lifting plate 25 is raised by an air cylinder (not shown).

When both ends of the printed circuit board 2 are cut in this manner, the printed circuit board 2 is divided into a plurality of printed circuit boards 2c in the width direction due to the presence of the slits 2b. . At this time, the divided printed circuit board 2c remains received by the forks 27a to 27d and does not fall off from the forks 27a to 27d.

After that, the mounting plate 24 of the carrying device 22 further moves in the direction of arrow A, and the divided printed circuit board 2c is carried onto the chute 21. Then, the elevating plate 25 of the carrying device 22 is lowered by an air cylinder (not shown), so that the printed circuit board 2c on the forks 27a to 27d.
Is placed on the chute 21, slides down the chute 21, and is sent to the next step by another conveying means (not shown).

As described above, according to this embodiment, the printed board 2 positioned at the carrying start position is carried by the carrying device 22 for a predetermined distance, and one end of the printed board 2 is linearly cut by the hydraulic press 15. After that, the printed circuit board 2 is again conveyed by the conveying device 22 and the other end portion of the printed circuit board 2 is linearly cut by the hydraulic press 15, so that the printed circuit board 2 is conveyed after the one end portion is cut by the hydraulic press 15. It can be divided into a plurality of printed circuit boards 2c having a length corresponding to the transport distance of the device 22.

In this case, one end of the printed circuit board 2 is cut by the hydraulic press 15, the printed circuit board 2 is intermittently fed by the transfer device 22, and the hydraulic press 15 is used to move the printed circuit board 2 as shown in FIG.
By cutting the plurality of points indicated by the lines D to G linearly, the printed board 2 can be divided into printed boards having different lengths from the printed board 2c. Moreover, die 1
Since the length dimensions of 9 and the punch 20 are set to be longer than the width dimension of the maximum width printed circuit board among various printed circuit boards to be cut by the present cutting device, the same cutting can be performed on any type of printed circuit board. Depending on the method, it can be divided into a plurality of printed circuit boards. Therefore, one type of die 19 and punch 20 of the hydraulic press 15 can be used when cutting any printed circuit board, and it is not necessary to prepare a dedicated one for each printed circuit board.

Moreover, the printed board 2 is attached to the hydraulic press 15.
Since the cutting is performed by the method, the time required for the cutting can be shortened as compared with the case of cutting by the rotary blade, and the decrease in productivity can be prevented as much as possible.

In the above embodiment, the slit 2b is previously formed.
Although the printed circuit board 2 provided with is to be cut,
It can also be applied to those without slits.
The reason is that the printed circuit board can be divided into a plurality of printed circuit boards by shortening the cutting interval with the die 19 and the punch 20.

Besides, the present invention is not limited to the embodiments described above and shown in the drawings. For example, the present invention is not limited to the case of cutting a large number of printed boards to divide them into a plurality of printed boards, and The present invention can be widely applied in the case of cutting, and various modifications can be made without departing from the scope of the invention.

[0030]

As described above, according to the printed circuit board cutting apparatus of the present invention, a plurality of printed circuit boards can be divided in a short time without using a dedicated mold for the printed circuit board.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, and is a vertical cross-sectional side view of a main part in a state in which one end of a printed circuit board is cut.

FIG. 2 is a view corresponding to FIG. 1 showing a state in which the other end of the printed circuit board is cut.

FIG. 3 is a side view showing a schematic configuration of a positioning device.

FIG. 4 is a perspective view showing a schematic configuration of a transfer device.

FIG. 5 is a side view showing a schematic configuration of a transfer device.

FIG. 6 is a perspective view showing the entire cutting device.

FIG. 7 is a perspective view of the printed circuit board before cutting.

FIG. 8 is a perspective view of the printed circuit board after cutting.

FIG. 9 is a diagram showing another cutting position of the printed circuit board.

[Explanation of symbols]

2 is a printed circuit board, 5a and 5b are guide rails, 8 is a positioning device, 15 is a hydraulic press, 17 is a hydraulic cylinder,
19 is a die, 20 is a punch, 22 is a conveying device, and 27a
~ 27d is a hawk.

Claims (1)

[Claims] 1. A positioning device for positioning a printed circuit board at a predetermined position, a carrying device for carrying the printed circuit board positioned by the positioning device, and the printed circuit board carried by the carrying device. A die and a punch for cutting along a direction intersecting the transport direction, and the printed board is transported between the die and the punch by a transport device and cut by the die and the punch,
A print characterized in that the printed circuit board is cut into a length corresponding to a carrying distance by the carrying device by carrying out at least once the carrying of the printed board by the carrying device and the cutting of the printed board by a die and a punch. Substrate cutting device.