JPS6315500A - Automatic positioning conveyer for printed board - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a conveyor device that automatically aligns and positions the end faces of printed circuit boards being conveyed.

(Prior Art) Conventionally, a conveyor device for positioning the end face of a printed circuit board (including an inner layer board and an outer layer board) has been used.
As shown in Fig. 3, a plurality of roller conveyors 1 are arranged parallel to each other on the same plane and rotated by a motor, and the ends of the conveying surface formed by the roller conveyors 1 are perpendicular to each other. A plate-shaped first stopper 2 and a second stopper 3 are respectively arranged upright as shown in FIG. A device is used that includes a width-adjusting guide 7 that stands upright facing the second stopper 3 and is configured to be slidable toward the second stopper 3 by a motor 5 and a drive belt 6.

In this device, the printed circuit board 8 rolled onto the roller conveyor 1 is first conveyed in the direction toward the first stopper 2 by these rotations. At this time, each of the positioning roller conveyors 4 is held at a position lower than the parallel surface of the roller conveyor 1, that is, the conveying surface by a level H1.

Next, as shown in FIGS. 14 and 15, when the end surface of the printed circuit board 8 hits the first stopper 2 and stops, the positioning roller conveyor 4 is immediately driven upward to a position higher than the conveying surface by a level H2. At the same time, the width adjustment guide 7 is slid until the other end surface of the printed circuit board 8 comes into contact with the second stopper 3. After both end surfaces of the printed circuit board 8 are thus positioned, the width unevenness guide 7 is returned to its original position.

(Problems to be Solved by the Invention) However, in the conventional conveyor device 6 configured as described above, the printed circuit board 8 tends to be elastically deformed, and the width unevenness guide 7 slides, causing the end surface of the printed circuit board 8 to be easily deformed. is the second
When pressed against the stopper 3, this tends to bend and deform in the width direction, so there is a problem that accurate positioning cannot be performed.

At this time, it was also found that the pattern on the surface of the printed circuit board 8 is easily damaged by the surface of the rollers of the roller conveyor 40.

Roughly speaking, if the printer 1 and the substrate 8 are transported not parallel to the feeding direction but at a slight angle (maximum 15 to 20 degrees), as shown in FIG. like,
With the printed circuit board 8 tilted, the edge part
When it hits the stopper 3, the sliding of the width deviation guide 7 is stopped, and there is a problem that the end face of the printed circuit board 8 cannot be positioned at the desired position.

The present invention was made in order to solve these problems, and provides a printed circuit board automatic positioning conveyor device that can accurately position two orthogonal end surfaces of the printed circuit board without damaging the surface pattern etc. The purpose is to

[Structure of the Invention] (Means for Solving the Problems) That is, the printed circuit board automatic positioning conveyor device of the present invention is arranged in parallel perpendicularly to the conveying direction on the same plane,
a plurality of cylindrical rollers rotationally driven by a motor;
two linear stoppers erected parallel and perpendicular to the conveying direction at the ends of the parallel surfaces of the cylindrical rollers; and a plurality of substrate detection sensors respectively arranged in front of the stoppers. and disposed between the cylindrical rollers on the juxtaposed surface or a lower surface, and both ends of each are raised to an inclined state toward the stopper in response to a signal from the substrate detection sensor. It is characterized by having multiple driven belt conveyors.

(Function) In the printed circuit board automatic positioning conveyor device of the present invention, the printed circuit board placed on the rotating cylindrical roller is first partially or completely disposed on one end surface of the printed circuit board placed on the parallel surface of the cylindrical roller ( Ifffl is fed until it comes into contact with a stopper that is vertically disposed on the conveying surface) and perpendicular to the conveying direction. This contact is detected by a substrate detection sensor disposed at the front of the other stopper. Next, in response to the detection signal from this substrate detection sensor, the far end of the belt conveyor is raised to a position higher than the conveyance surface by another stopper installed parallel to the conveyance direction, and at the same time, the belt conveyor is raised to a position higher than the conveyance surface. It is supported in a tilted direction. The printed circuit board then slides down on the inclined surface of the belt conveyor until its other end surface reaches the stopper.

The two end surfaces of the printed circuit board thus constructed are successively positioned at the target position.

(Example) Embodiments of the present invention will be described below based on the drawings.

Fig. 1 is a perspective view showing an embodiment of the printed circuit board automatic positioning conveyor device of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a front view seen from the conveying direction, and Fig. 4 is a side view. .

In these figures, reference numeral 9 indicates a plurality of cylindrical rollers whose outer peripheral surfaces are made of polyurethane, etc., which are arranged in parallel on a plane perpendicular to the conveyance direction, and these are motorized (not shown). Both rotate in the same direction as indicated by the arrows.

At the end of the conveying surface where the cylindrical rollers 9 are arranged in parallel,
A first stopper 10 and a second stopper 11 in the form of plates made of metal or the like with smooth surfaces are respectively erected perpendicularly and parallelly to the conveyance direction.

In addition, a plurality of reflective substrate detection sensors 12 are arranged at the front part of the first stopper 10 at an equal distance from the first stopper 10. A plurality of pairs of transmission type substrate detection sensors 13 are arranged at the end of the surface.

Roughly speaking, a plurality of positioning round belt conveyors 14 are arranged between the cylindrical rollers 9, respectively. These round belt conveyors 14 are constructed by a round belt 16 being passed across a plurality of small pulleys 15 arranged with their axial directions parallel to the conveying direction, and all of them are located below the conveying surface and at the State tilted towards the 2nd stopper 11 (
It is installed at H3 (H'3). These positioning round belt conveyors 14 are raised while maintaining an inclined state in response to signals from the foul substrate detection sensor 12 and the transmission substrate detection sensor 13, and are moved up for a preset period of time or by the reflection substrate detection sensor 13. The detection sensor Fj12' is configured to descend to the restoring position sensed by a plurality of detection sensors Fj12'.

Next, the operation of the printed circuit board automatic positioning conveyor apparatus of the embodiment configured as described above will be explained.

As shown in FIGS. 5 and 6, the printed circuit board 15 is tilted on the conveying surface parallel to the conveying direction or by an angle θ with respect to the axis of the cylindrical roller 9 due to the rotation of the cylindrical roller 9. When the tip of the substrate passes through the transmission type substrate detection sensor 13 located closest to the first stopper 10, it is immediately detected by the transmission type substrate detection sensor 13, and the print Substrate 15
A signal indicating that one end surface has reached the first stopper 10 is output to the upward drive mechanism of the positioning round belt conveyor 14. Upon receiving this signal, the raising drive mechanism operates, and as shown in FIGS. rise to position.

At this time, the printed circuit board 15 is transferred from above the cylindrical roller 9 onto an inclined surface formed by a group of positioning round belt conveyors 14, and slides down on this inclined surface until the other end surface reaches the second stopper 11. do.

Next, set time or reflective substrate detection sensor 12
After sensing a plurality of ', the positioning round belt conveyor 14 descends to its original state, and the cylindrical roller 9, which has continued to rotate,
The tilt of the printed circuit board 15, which has been moved upward again, is corrected by this rotation, and the two end faces of the printed circuit board 15 come into contact with the first and second stoppers 10 and 11, respectively.

Even if the cylindrical roller 9 were to rotate, the inclination of the printed circuit board 15 would not be corrected, and a part of the end surface of the printed circuit board 15 would come into contact with the second stopper 11 while remaining tilted with respect to the conveyance direction. If it is detected by the plurality of reflective board detection sensors 12 that the printed circuit board 15 is on the inside, the second stopper 11 moves back and forth while strongly pushing the printed circuit board 15 inward, and at the same time the round belt conveyor 14 rises again and then descends. Do this. By repeating such operations, the inclination of the printed circuit board 15 is completely corrected and accurate positioning is achieved.

In addition, in the printed circuit board automatic positioning conveyor apparatus of the present invention, a round belt conveyor 14 that is driven upward as shown below can be used.

That is, when the round belt conveyor 14 is not in operation, it is supported from below by a sill 16, a coil spring 17, and a first mechanical stopper 18, as shown in FIG. slightly downward and I
It is arranged parallel to the IU feeding surface.

Then, based on the signal from the substrate detection sensor, the cylinder 16
begins to move upward against the coil spring 17, and as a result, the round belt conveyor 14 also rises to a position higher than the conveying surface. (the end opposite to the end to which the coil spring 17 is attached) is held down by a second mechanical stopper 19 projected at a predetermined height position,
The fulcrum pin 20m1, which is the connecting portion of the cylinder 16, is made the fulcrum and is tilted toward the second stopper 11.

[Effects of the Invention] As is clear from the above explanation, according to the printed circuit board automatic positioning conveyor device of the present invention, even when the printed circuit board is conveyed not parallel to the conveyance direction but at an angle, the conveyor device automatically By correcting this inclination, it is possible to accurately position the two end faces at desired positions.

In addition, positioning can be performed while maintaining quality without damaging the pattern on the surface of the printed circuit board.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an embodiment of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a front view seen from the conveying direction, Fig. 4 is a side view, and Figs. 5 to 8 are Both are printed bases of Examples,
5 and 7 are plan views, FIGS. 6 and 8 are front views, and FIG. 9 is a diagram showing the operation of the temporary automatic positioning conveyor device.
FIG. 10 is a front view and FIG.
The figure is a perspective view of a conventional printed circuit board automatic positioning conveyor device, FIG. 12 is a plan view thereof, and FIG. 13 is a side view thereof.
FIG. 14 is a plan view showing the operation of a conventional printed circuit board automatic positioning conveyor device, and FIG. 15 is a side view of the same.
FIG. 6 is a plan view for explaining problems in the conventional printed circuit board automatic positioning conveyor device. 1・・・・・・・・・・・・・・・Color conveyor 2.1
0...First stopper 3.11...Second stopper 4...Positioning roller conveyor 7...・・・・・・Guide for uneven width 8
．． 15...Printed circuit board 9...Cylindrical roller 12.
12'... Foul board detection sensor 13...
......Transmissive substrate detection sensor 14...
・・・・・・・・・Positioning round belt conveyor 16・
・・・・・・・・・・・・・・・Cylinder 19・・・・・・
・・・・・・・・・Second mechanical stopper applicant
Toshiba Corporation Patent Attorney Satoshi Suyama - Figure 1 Figure 3 Figure 4 Figure 5 Figure 6 Figure 14 Figure 15

Claims (1)

[Claims] (1) arranged in parallel on the same plane perpendicular to the transport direction;
a plurality of cylindrical rollers rotationally driven by a motor;
two linear stoppers erected parallel and perpendicular to the conveying direction at the ends of the parallel surfaces of the cylindrical rollers; and a plurality of substrate detection sensors respectively arranged in front of the stoppers. and disposed between the cylindrical rollers on the juxtaposed surface or a lower surface, and both ends of each are raised to an inclined state toward the stopper in response to a signal from the substrate detection sensor. A printed circuit board automatic positioning conveyor device comprising a plurality of driven belt conveyors.