JPH06209188A - Discriminating equipment for obverse and reverse, and front and rear, of printed wiring board - Google Patents

Abstract

PURPOSE:To simply, rapidly, perfectly, automatically discriminate and sort the front and the rear and/or the obverse and the reverse without using artificial means, independently of the size or the kind of one surface and both surfaces of printed wiring boards, and exhibit effects like remarkably improvement of workability of this kind of work. CONSTITUTION:Printed wiring boards are conveyed by a conveying part 2. The obverse and the reverse are discriminating by a discriminating part 2 for the obverse and the reverse. The printed wiring boards discriminated by the discriminating part 2 are sorted in conveying part 30, 31 by a sorting part 3. The printed wiring boards conveyed by the conveying parts 30, 31 are discriminating by discriminating parts 4, 5 for the front and the rear, and conveyed out to conveying parts 81, 91 via guide belts 80, 90. Thereby the obverse and the reverse and the front and the rear of printed wiring boards are automatically discriminated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for automatically discriminating between the front and back of a printed wiring board and the front and back.

[0002]

2. Description of the Related Art Conventionally, in the manufacturing process of a printed wiring board, the printed wiring board is lowered after the formation of wiring is completed, for example, in a component hole or outer shape press work, polishing work, other work, or an intermediate inspection process. During the supply of each printed wiring board to each processing step or intermediate inspection step, since the board expands or contracts due to heat, it is normally controlled in a superposed state while staggering the front and back and the front and back. Is.

[0003]

Therefore, in supplying this to each process of the above-mentioned processing and inspection, the front and rear and front and back sides of the printed wiring boards with the front and back and the front and back alternately stacked are unified again. It had to be supplied under conditions, and the work had to rely on human work.

Therefore, by providing a method and an apparatus capable of automatically performing the front and back and front and back distribution work of a large number of printed wiring boards which are alternately stacked front and back and front and back, it is necessary to rely on conventional human work. The purpose of the present invention is to make it possible to easily and quickly carry out the work of allocating printed wiring boards, which has not been obtained, and to improve the workability while ensuring proper work efficiency and labor saving.

[0005]

The present invention detects the presence or absence of a wiring portion provided on either the front or back of a printed wiring board, or the pattern of the wiring portion provided on either the front or back, or both sides, The front / back side of the printed wiring board is discriminated and the front / back discrimination signal provided on the printed wiring board is detected to discriminate the front / back side of the printed wiring board, and each print is performed based on the front / back discrimination signal of the printed wiring board. By arranging the wiring boards, the front and back of the printed wiring board and the front and back are automatically arranged.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the device of the present invention will be described with reference to the drawings. FIG. 1 is a plan view of the sorting apparatus, and FIG. 2 is a side view in which the same portion is vertically cut.

In FIG. 1, reference numeral 1 is a printed wiring board A.
The transport section 2, the front and back discriminating section 3 of the printed wiring board A which is fed from the supply table 20 of the transport section 1 and is transported by the transport belt 21, and the printed wiring board 3 based on the discrimination signal of the front and back discriminating section 2. A is assigned to the front side and the back side to the left and right transport units 30 and 31, and the sorting units 3 and 4 are assigned to the left and right transport units 30 and 31, respectively. The front and rear discriminating units 6 and 7 for discriminating the front and rear of the printed wiring board A conveyed through the units 30 and 31 are arranged on the front side of the printed wiring board A based on the discrimination signals of the front and rear discriminating units 4 and 5. Depressing means 6 for directly sending the items to the unloading parts 81, 91 via the guide belts 80, 90 and pushing down the items on the rear side.
The reversing belts 62 of the reversing portions 61, 71 through the 0, 70,
After being pushed down to 72 and inverted to the front side via the inversion parts 61 and 71, the distribution parts 8 and 9, 10 and 11 are distributed to the carry-out parts 82 and 92 while being distributed.
Are sorted out at the respective carry-out parts 81, 82, 81,
8 shows a carrying-out stacking unit for stacking and stacking the printed wiring boards A carried out via 82.

Further, the carrying section 1 cooperates with a feeding table 22 for loading a large number of printed wiring boards A in an inverted state and the carrying belt 21 to carry the printed wiring boards A to the front / back surface discriminating section 2 in sequence. A guide roller 23 is provided. As shown in FIG. 2, the conveyor belt 21 has belt wheels 43 and 44 attached to axles 41 and 42 which are bridged above the pedestal 40.
The axle 41 is connected to the motor 46 via a belt wheel 45 of one axle 41 and a belt 48 stretched between a drive wheel 47 of a motor 46.

The supply base 22 of the supply unit 26 is provided with a plurality of sliding plates 49 so that it can be moved in the direction of the conveyor belt 21 by the weight of the printed wiring board A loaded on the upper side of the supply base 22. And side frame plates 5 on both left and right sides
0 and 51 are provided and one side frame plate 50 is provided on the supply base 2
The support members 54 and 55 are slidably attached to the guide bars 52 and 53 protruding from the frame body of No. 0.
By sliding 4, 55 in the longitudinal direction of the guide bars 52, 53, the standing position can be changed in the direction opposite to the side frame plate 51 that is vertically fixed to the frame body of the other supply base 20. Is configured to get.

The guide rollers 23 have a plurality of guide rollers 58 mounted on four axles 57 rotatably provided on bearings (not shown) on the upper side of the gantry 40, and an intermediate wheel attached to the upper end of each axle 57. 59 and driving wheels 67 and 68 of a motor 66 mounted on the upper side of the gantry 40 are connected by belts 64 and 65.

The front / back side discriminating unit 2 is the conveying unit 2
A pair of guide belts 220, 230 on both the left and right sides for transporting the printed wiring board A, which is further transported, are arranged on both front and rear sides via the metal detection sensors 24, 25, and the guide belt 220 on the rear side. , 230, optical sensors 26 and 27 for detecting the presence or absence of the printed wiring board A are provided.

The guide belts 220 and 230 are mounted on the pedestal 4
0 A plurality of belt wheels 29 mounted on rotating shafts 28 standing upright on the left and right sides of the rear side of the conveyor belt 21 are stretched, and each rotating shaft 28 can be rotated by a motor (not shown). Is configured.

Next, the distributing section 3 includes outer guide belts 32, 33 provided on the upper side of the gantry 40 and inner guide belts 3 provided opposite to the guide belts 32, 33.
Conveying sections 30 and 31 composed of 4 and 35 and distribution belts 36 and 37 on the front side of the inner guide belts 34 and 35.
Guide unit 38 and an operation unit 39 that moves the guide unit 38 in either the left or right direction based on the determination signal of the front / back determination unit 2.
The operation portion 39 is composed of a rotary shaft 74 rotatably erected on the upper side of the gantry 40, a rotary gear 73 fixed to the rotary shaft 73, and an upper end of the rotary shaft 75 of the guide portion 38 connected to the rotary gear 73. The drive gear 77 of the motor 76 mounted on the upper side of the gantry 40 is configured to mesh with the rotary gear 73.

Reference numeral 78 is a conveyor belt stretched between the front / back discriminating section 2 and the sorting section 3, 79 is a drive motor for the conveyor belt 78, and 83 is a conveyor belt. In addition, the front and rear discriminating units 4 and 5 are a conveyor belt 84, a plurality of optical sensors 85 which are paired on the left and right sides of the conveyor belt 84 at predetermined intervals, and printed wirings which are a pair behind them. The optical sensor 86 detects the presence or absence of the substrate A.

Reference numeral 87 denotes a drive motor for driving the guide belts 88 and 89 which are erected on the left and right sides of the conveyor belt 84. Next, the distribution units 6 and 7 are the conveyor belts 93 and 94, the guide belts 95, 96, 80 and 90 provided on the left and right sides thereof, the pressure cylinders 97 and 98 as the pressure means 60 and 70, and the pressure cylinders. A reversal belt group 99 for reversing the printed wiring board A pushed down by the conveyor belts 62, 72 by the 97, 98 and a reversal belt group 99 for conveying the conveyance belt 100 conveyed to the unloading stacking sections 8, 9, 10, 11. It is constructed by connecting to and tensioning.

Reference numeral 101 denotes a reverse belt group 99 and a conveyor belt 1.
A motor for driving 00 is shown. Further, the carrying-out stacking units 8, 9, 10, 11 are arranged corresponding to the rear sides of the respective conveyor belts 94, 100, and via a carrying-out roller 102 provided at the rear end of the conveyor belts 94, 100. And the printed wiring board A can be carried out to the upper side of each of the loading platforms 103, and each of the loading platforms 103 is erected on the upper side of the gantry 40.
4 is configured to be attached to the vehicle 4 via a lifting roller 106 so as to be lifted up and down, and is configured to connect a lifting chain belt 105 between chain wheels 107 mounted above and below the lifting frame 104 to a drive motor 108. .

Further, the roller 1 is attached to the chain belt 105.
Each loading platform 103 connected via 06 is sequentially lowered from the upper side of the elevating frame 104 toward the lower side in correspondence with the printed wiring board A carried out via each roller 102, and is placed on the loading platform 103. The printed wiring boards A can be stacked one after another.

Incidentally, 109 and 110 are conveyor belts 72 and 93.
, 111 is a driving motor for the reversing belt group 99, and the reversing belt group 99 can move the supporting frame 112 supporting these in the longitudinal direction between the lengthwise directions of the conveyor belt 93. The support frame 112 is slidably attached to the upper side of the slide base 113 and is connected to the drive motor 115 for operation via the connection frame 114.

When the front / back and front / rear discriminating device having the above-mentioned configuration is used to discriminate the front / back and front / rear of the printed wiring board A, a large number of the printed wiring boards A are placed on the upper side of the supply table 22 of the conveying section 1 and are slid. It is supplied to the conveyor belt 21 while being slid by the moving plate 49.

The side frame plate 50 of the supply base 22 is aligned by sliding the guide bars 52 and 53 in the front-rear direction according to the width of the printed wiring board A, and then the support frame 54,
55 is fixed by the fixing screw (not shown).

The printed wiring board A supplied to the upper side of the conveyor belt 21 is a guide roller 23 and a guide belt 2.
The metal print sensors 24 and 25 perform the same printing by the detection signals of the printed wiring board A which are conveyed to the front and back discrimination unit 2 while being guided through 20, 230 and which are present in the front and back discrimination unit 2 by the optical sensors 26 and 27. The wiring parts on the front and back of the wiring board A are detected.

Then, based on the detection signals of the metal detection sensors 24 and 25, the guide section 38 of the sorting section 3 is operated by the operation section 39.
The printed wiring board A is distributed to one of the transport units 30 and 31 by operating the printed wiring board A through.

That is, the sensor 24
When the wiring portion is detected, the rotation gear 73 is rotated clockwise by this detection signal, and the guide portion 38 is moved to the one outer guide belt 33 side. When the wiring portion is detected by the sensor 25 while being prevented from being conveyed to the side and conveyed to the conveying unit 30 side and distributed, the conveying unit 31 is operated by the reverse operation to the above.
It is transported to the side and distributed.

Therefore, assuming that the sensor 24 side is the printed wiring board A which is turned upside down on the front side and the back side of the sensor 25 side, the front side printed wiring board A is on the carrying section 3.
The printed wiring board A on the back side is supplied to the front / rear discrimination unit 5 via the transport unit 31 while being supplied to the front / rear discrimination unit 4 via 0.

The front / back discriminating unit 2 is a method of detecting the presence or absence of a wiring portion provided on the surface of the printed wiring board A by the metal detection sensors 24 and 25, and presupposes the printed wiring board A on one side. However, when distinguishing the front and back of the printed wiring board on both sides, the front and back of the printed wiring board is determined in the same manner as above by equipping an image sensor that detects the pattern of the wiring portion in place of the sensors 24 and 25. You can sort while doing.

In the above description, the printed wiring boards A distributed to the transport units 30 and 31 are guided by the transport belts 83 and 84 to the guide belts 32, 33, 34, 88 and 8 on both sides.
9 is guided to the front / rear discriminating units 4 and 5 and is detected by the optical sensor 86, and each sensor 85 of the front / rear discriminating units 4 and 5 simultaneously detects in advance by the detection signal of the optical sensor 86. The position of the front / rear discrimination signal hole formed in the printed wiring board is detected, and the front / rear discrimination signal is transmitted to the pressing cylinders 97, 98 of the pressing means 60, 70.

That is, when the printed wiring board A interposed between the front and rear discriminating units 4 and 5 is facing forward, an operation signal is not transmitted to the pressing cylinders 97 and 98, and the board A is
It is carried out to the upper side of the carrying-out belts 94, 100 while being guided by the guide belts 80, 90 via the carrying belt 93,
Further, it is carried out via the carry-out roller 102 to the loading platform 103 of the carry-out section 9, 10 arranged in front of the carry-out roller 102 and distributed. On the contrary, in the case of facing backward, the pressing cylinder 9
The operating signal is transmitted to 7, 98, and this is operated to push down the printed wiring board A on the upper side of the conveyor belt 93, which is in an inverted state, and pushes it out to the upper side of the carry-out belts 62, 72 of the reversing units 61, 71, and the reverse belt group 99 After being inverted through the transfer belts 94 and 100 and the transfer roller 102.
It is distributed while being carried out to the loading table 103 of the carrying-out parts 8 and 11 arranged corresponding to these via.

It should be noted that each loading platform 103 is constructed so as to be sequentially lowered by the printed wiring boards A loaded on the loading platform 103 so that the printed wiring boards A sequentially carried out can be loaded. This is as described in the above description of the configuration. In addition, the support frame 11 in the reversing portions 61 and 71
The size of the printed wiring board A can be accommodated by sliding 2 in the front-rear direction. Similarly, the printed wiring board A supplied from the transport unit 1
Can be sorted according to the front / back and front / back discrimination.

[0029]

EFFECTS OF THE INVENTION According to the present invention, regardless of the size of the printed wiring board or the type of one side or both sides, it can be easily, quickly and accurately, automatically, before and / or after, and / or without intervention of human means. It is possible to sort while distinguishing between the front and the back, and it is possible to greatly improve the workability of this type of work which conventionally had to rely on artificial means.

[Brief description of drawings]

FIG. 1 shows an embodiment of a front / back side and front / back discriminating apparatus of the present invention.

FIG. 2 is a vertical sectional side view of the same.

[Explanation of symbols]

 1 Transport Unit 2 Front / Back Discrimination Unit 3 Sorting Unit 4,5 Front / Back Discrimination Unit 6,7 Sorting Unit 8, 9, 10, 11 Loading Unit 20 Supply Unit 21 Conveyor Belt 22 Supply Platform 23 Guide Roller 24, 25 Metal Detection Sensor 26, 27 Optical Sensor 28 Rotating Shaft 30, 31 Conveying Section 32, 33, 34, 35 Guide Belt 36, 37 Sorting Belt 38 Guide Section 39 Operating Section 40 Frame 41, 42 Axle 43, 44, 45 Belt Car 46 Motor 47 Drive Vehicle 48 Belt 49 Sliding plate 50,51 Side frame plate 52,53 Guide bar 54,55 Support member 57 Axle 58 Guide roller 59 Intermediate wheel 60,70 Pressing means 61,71 Inversion section 62 Conveyor belt 64,65 Belt 66 Motor 67, 68 Drive vehicle 72 Conveyor belt 73 Rotating gear 74, 75 Rotating shaft 76 Mo -77 Drive gear 78 Conveyor belt 79 Motor 80,90 Guide belt 81,91 Carry-out section 82,92 Carry-out section 83,84 Conveyor belt 85,86 Optical sensor 87 Motor 88,89 Guide belt 93,94 Conveyor belt 95,96 Guide Belts 97, 98 Pressing cylinders 99 Inversion belts 100 Conveying belts 101 Motors 102 Outgoing rollers 103 Loading platforms 104 Elevating frames 105 Chain belts 106 Rollers 107 Chain cars 108 Motors 109, 110 Motors 111 Motors 112 Supporting frames 113 Slide bases 114 Connecting frames 115 motor

Front page continuation (72) Inventor Isamu Kubo 236 Shibamachi, Isesaki City, Gunma Japan CMC Corporation (72) Inventor Koji Otake 3-10 Shimouegicho, Isesaki City, Gunma Prefecture Iwase Sangyo Co., Ltd. (72) Invention Kazuo Hayashi 3532, Moro-cho, Isesaki-shi, Gunma Prefecture Ito Denshi Togashi Co., Ltd.

Claims (1)

[Claims] 1. A transport section for transporting the printed wiring board to the front / back discrimination section in an inverted state, and a detection means for detecting the presence or absence of a wiring section provided on either the front or back of the printed wiring board or a pattern of the wiring section. An optical sensor detects a front / rear discrimination unit and a front / rear discrimination signal including a distribution unit including a distribution unit that distributes a printed wiring board based on the discrimination signal in the front / back determination unit and one or a plurality of holes perforated in the printed wiring board. A front / rear discrimination unit having a discrimination unit for discriminating the front / rear of the printed wiring board, and a pushing unit that pushes down the printed wiring board conveyed in an inverted state based on the discrimination signal of the front / rear discrimination unit and the pushing unit. Front and back side of the printed wiring board consisting of a reversing section for reversing and transporting the printed wiring board and a sorting section for the printed wiring board Front and rear discriminating device.