JPH0134886B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to an inserter, an insert circuit tester, etc. (hereinafter referred to as a "printed board processing device") for processing printed boards (including those with unmounted circuit components and those with circuit components already mounted). (hereinafter collectively referred to as "printed board supply/discharge device").

Background of the Technology Generally, during the manufacturing process, a plurality of printed boards are stored in a magazine that also serves as a protective container and transported. For this reason, a printed board supply/discharge device is often used, which takes out printed boards housed in a magazine from the magazine, supplies them to a printed board processing device, and discharges them from the printed board processing device after processing is completed and stores them in the magazine again.

There are two methods for the printed board supply/discharge position.
One is the so-called "pass-through method" in which the ejected printed board is stored in an empty magazine separate from the original magazine, and the other is the so-called "pass-through method" in which the ejected printed board is stored in the same magazine as the original one. It is a "return method". However, the former ``pass-through type'' device requires a mounting magazine containing printed boards and a stocker for empty magazines, resulting in a large device with the disadvantage of poor space efficiency. On the other hand, the latter "return method" has the advantage of being compact and space efficient since only the mounted magazine stocker is required.

Description of the Prior Art As an example of a conventional return type printed board supply/discharge device, a plurality of magazines storing printed boards in multiple stages are stored, the magazines are transported to a printed board supply/discharge position, and the magazines are loaded at the position. A magazine stocker that feeds the printed board accommodating section in a vertical direction so as to sequentially stop at the printed board loading/unloading position, and a magazine stocker that takes out the printed board from the magazine at the printed board supply/discharge position and supplies it to the printed board processing device and after the processing is completed. There is a printed board supply/discharge device that includes a printed board transport mechanism that ejects the printed board from the printed board processing device and returns it to the same magazine.

However, conventional magazine stockers of this type can generally transport the stored magazines to the printed board supply/discharge position only in the order in which they are arranged at the time of stocking, and cannot arbitrarily change the arrangement order. In this case, if a magazine containing a different type of printed board is mixed in in the middle of the magazine row, it is necessary to replace the jig of the printed board processing equipment each time to process the printed board, which is time-consuming. Moreover, when the vehicle is operated unmanned, there is a possibility that the vehicle will stop operating.

Purpose of the Invention The purpose of the present invention is to solve the problems of the printed board supply/discharge device as described above, that is, to provide a system that can transport the magazines of a magazine stocker to the printed board supply/discharge position in any order. The object of the present invention is to realize a printed board supply/discharge device having a so-called "grouping function".

Structure of the Invention The present invention provides a printed board supply/discharge device as described above, in which the magazine stocker is provided with an upper and lower two-stage stock conveyor each capable of storing a plurality of magazines, and is disposed at both ends of the stock conveyor. Ta2
a magazine elevating and lowering unit, and a magazine pitch feed elevating unit that is disposed between one of the magazine elevating units and the printed board transfer mechanism and performs pitch feeding in accordance with the accommodation pitch of printed boards in the magazine. unit, the upper and lower 2
The magazine to be fed to the magazine pitch feeding/elevating unit can be selected by means of a stock conveyor in the tiers and magazine elevating/lowering units at both ends of the stock conveyor.

Embodiments of the Invention Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

1 and 2 are a perspective external view and a side view of a first embodiment of a printed board supply/discharge device according to the present invention. In these figures, reference numeral 1 indicates an inserter for automatically inserting IC parts, etc., and reference numeral 2 indicates an X-Y movable table on which a printed board is to be mounted. The movable table 2 is movable within the X-Y plane between the illustrated printed board attachment/detachment position and a component insert portion (not illustrated).

The printed board supply/discharge device is roughly composed of a magazine stocker 3, a printed board transfer mechanism 4, and a magazine loading/unloading conveyor 5. The magazine stocker 3 is a stock conveyor 6 that loads a plurality of magazines M containing a plurality of printed boards P.
and three lifting units 7 placed in front and behind it.
8 and 9. As is clear from Fig. 1, the printed board storage magazine M is open at the front and rear (left and right in Fig. 2), and guide rails are formed on the inner surfaces of the left and right side walls, and the printed boards P are placed on these guide rails in a horizontal state. It can be stored and held in multiple stages. The printed boards P are inserted into and taken out of each magazine from the front side of the magazine M (on the left side in FIG. 2).

FIG. 3A is a partial side view showing the two front lifting units 7 and 8, the transfer mechanism 4, and their surroundings, and FIG. 3B is a partial front view seen in the direction of arrow a in FIG. 3A. 4 and 5A are partial perspective views of the foremost lifting unit 7 from the rear and front sides, respectively, and FIG. 5B is a partially enlarged perspective view of FIG. 5A. As is clear from these figures, the stock conveyor 6 has two upper and lower conveyors 6A and 6B. These conveyors each have stock conveyors 12 that can be independently driven in both forward and reverse directions and are arranged close to each other in a row in the front and back direction, and can convey magazines M in various ways depending on the situation. In addition, the frame of the stock conveyor 6 is equipped with a printed board extrusion cylinder 13 (FIG. 3A,
(Fig. 4) and a printed board checker (Fig. 4).

The three lifting units 7, 8, and 9 are basically the same and have a substantially U-shaped column 15, on which a lifting platform 16 is connected along a guide rod 17 (FIG. 5A) with a motor 18 (3rd A). Figure) and chain 19
(FIGS. 3A and 5A), and the lifting platform 16 is provided with a conveyor 20 that is the same as the belt conveyor 12 of the stock conveyor 6. However, the first lifting unit 7
is the printed board P in the magazine M, as described later.
The elevating table 16 is configured to be able to feed in pitches at the same pitches as the printed board accommodating section pitches of the magazine in order to sequentially stop the magazines at positions for supplying and discharging them to the inserter 1. Therefore, in the following, the foremost lifting unit 7
This is especially called the "pitch feed lifting unit."

This pitch feeding of the elevating table 16 is carried out by a sawtooth stop position marker 21 fixed to the column 15 and a photo sensor fixed to the elevating table 16 and moving up and down together, as shown in FIGS. 5A, 5B and 6A. 2
2. Tooth 21a of marker 21
is formed so that the pitch p of its center line C is the same as the pitch of the printed board accommodating portion of the magazine. However, the symbol h indicates the height of the tooth 21a. The photo sensor 22 has a light-emitting element 22a and a light-receiving element 22 on two-pronged metal fittings facing each other so as to sandwich the teeth 21a.
When the photo sensor 22 detects the tooth 21a, the control circuit 2 is activated as shown in FIG. 6B.
3, the lifting motor 18 is stopped and the magazine M on the lifting table 16 is stopped at the printed board supply/discharge position. In addition, with this configuration, the photo sensor 22 detects the upper edge UE or lower edge LE of the marker tooth 21a according to the elevation of the elevator platform 16.
When this is detected, the drive will stop. In other words, when the lifting platform 16 is pitch-fed in the direction of arrow _A1 (upward), the sensor 22 detects the lower edge of the tooth 21a.
LE is detected and stopped, while the elevator platform 16 is indicated by the arrow
When pitch-feeding in the direction opposite to A ₁ (downward), the sensor 22 detects the upper edge UE of the tooth 21a and stops, so the stopping position of the lifting platform 16 is approximately at the height h of the tooth 21a. This results in a corresponding displacement. Therefore, in the present invention, the photo sensor 2 is
2 coincides with the center line C of the tooth 21a, the drive is stopped. That is, a pulse counter or the like is provided in the control circuit 23, and after the photo sensor 22 detects the upper edge UE or lower edge LE of the tooth 21a, it counts pulses corresponding to a distance of half h/2 of the height h of the tooth 21a. After that, the motor 18 is configured to stop driving. According to this configuration, the lifting table 16 stops at a position corresponding to the center position C of the tooth 21a in both the upper and lower pitch feeds, and the above-mentioned positional deviation does not occur. It goes without saying that the above measures are not necessary if the pitch direction of the lifting table 16 is limited to either upward or downward.

Next, the checker 14 which checks the presence or absence of the printed board P in the magazine M in connection with the pitch feeding of the elevating table 16 will be explained. As shown in FIGS. 4, 7A and 7B, the checker 14
is the piston rod 25a of the cylinder 25 (Fig. 4) fixed to the frame of the stock conveyor 6.
(Fig. 7A and Fig. 7B)
A contact 27 and a photo sensor 28 are provided on this metal fitting. The contactor 27 has a fan-shaped portion 27
a and a tongue-shaped portion 27b, and is pivotally attached to the metal fitting 26 at the fan-shaped portion 27a with a pin 29 so as to be rotatable in the directions of arrows _B1 and _B2 , and normally attached in the direction of arrow B1 with a coil spring 30. 7A and is held in the position shown by the solid line in FIG. 7A. As shown in a partially enlarged perspective view in FIG. 7B, the photo sensor 28 has a light emitting element 28a and a light receiving element 2 mounted on a two-pronged metal fitting fixed to the metal fitting 26.
8b is provided. Piston rod 25a
is normally contracted into the cylinder 25, and just before the magazine M is loaded on the lifting platform 16 and pitch feeding is started, the arrow will move as shown in FIG. 7A.
A The contact 27 extends into the magazine M by extending in _two directions. When the magazine M is raised, for example, by one pitch in the direction of arrow _A1 , the printed circuit board P comes to the position shown by the imaginary line P', and the contact 27 resists the action of the spring 30 as shown by the imaginary line. B Rotated in _two directions. As a result, the fan-shaped portion 27a of the contactor 27 intervenes between the light emitting element 28a and the light receiving element 28b of the photo sensor 28, the presence of the printed board P is detected, and based on this, the printed board feeding/discharging process as described later is carried out. Begins. If there is no printed board at position P', the contact 27 remains at the solid line position, and the absence of the printed board is detected.
In this case, the printed board feeding/discharging process is not performed, and the magazine M is subsequently fed to the next pitch.
In addition, the checker 14 in the illustrated example indicates the magazine M with an arrow.
Although this is adapted for pitch feeding in the _A1 direction, it can also be applied to pitch feeding in the direction opposite to arrow _A1 if the checker 14 is placed upside down.

The printed board transfer mechanism 4 has a base 40, as shown in FIGS. 1, 2, and 3A, on which the prints pushed out by the extrusion cylinder 13 from the magazine M of the pitch feed elevating unit 7 are mounted. A guide rail 41 for supporting and guiding the plate P is provided. Although this guide rail 41 is not clearly shown in the figure, it consists of a pair of left and right rails with guide grooves formed inside, and these rails are located on the side (second
A handle 42 is movable in the direction perpendicular to the paper surface in FIGS.
(FIGS. 1 and 2), the rail spacing can be adjusted in accordance with the width of the printed board P. A printed board conveying chain 43 (FIG. 3A) that can be driven in both forward and reverse directions by a motor is provided below the guide rail 41, and a claw 44 is attached to this chain so as to be able to raise and lower. As will be described later, when the claw 44 is in the upright state, it engages with the rear edge or front edge of the printed board supported by the guide rail 41, and by driving the chain 43, the printed board is transported forward or backward. I can do it. By folding the claws 44, the printed board can be freely moved without being hindered by the claws. On the other hand, the base 40
A support arm 45 is fixed to the top of the support arm 45, and a printed board gripping hand 46 is attached to the tip of this arm so as to be movable up and down by a cylinder 47. The hand 46 is 3B when viewed from the direction of arrow a in FIG. 3A.
Shaft with solenoid etc. as shown in the schematic front view of the figure.
A plurality of claw members 52 are respectively attached to a pair of left and right support plates 51 that can be opened and closed laterally with b ₁ and b ₂ at the center,
The structure is such that a printed board gripping groove 53 is formed inside the claw member 52. The hand 46 is raised and lowered above the printed board attachment position of the movable table 2 of the inserter 1, and attaches and detaches the printed board P to and from the movable table 2. Furthermore, the guide rail 41 is provided with a cylinder 48 (FIG. 3A) for conveying printed boards. This cylinder 48 has a claw 49 at the tip of the piston rod, and the hand 4
The claw 49 acts to pull the printed board P held by the guide rail 41 back to the guide rail 41.

Regarding the operation of the printed board transfer mechanism 4 described above, the third
To briefly explain with reference to Figure A, first, as described later, the magazine M is carried into the pitch feed lifting unit 7 and is pitch fed in the direction of arrow _A1 , and the printed board P stops at the printed board loading/unloading position and its presence is is confirmed by the printed board checker 14, the piston rod of the extrusion cylinder 13 is indicated by the arrow.
A It extends through the lifting unit 8 in _{the three} directions, and sends out the printed board P from the magazine M to the guide rail 41. Next, this sent-out printed board P is transferred to the hand 46 by the claw 44 of the conveying chain 43.
is fed into the gripping groove 53 (FIG. 3B) of the claw member 52. Then, the hand 46 descends to mount the printed board P on the movable table 2 of the inserter 1, and when the claw member 52 opens and the printed board is released, the hand 46 rises. Thereafter, the movable table 2 moves to the component insertion section of the inserter 1, and the component insertion into the printed board P is performed. When the part insertion is completed and the movable table 2 returns to the position shown in the figure, the hand 46 descends to grip the printed board P, and rises again to grip the printed board P.
from the movable table 2. Thereafter, the printed board P is returned from the hand 46 to the guide rail 41 by the claw 49 of the cylinder 48, and then returned to the guide rail 41 by the claw 44 of the conveyance chain 43.
1 and returned to its original position in the magazine M. Thereafter, the magazine M is raised one stage, and the same printed board feeding and ejection as described above is repeated.

FIG. 8 is a plan view of the loading/unloading conveyor 5 and the rear lifting/lowering unit 9, and FIG. 9 is a side view of the loading/unloading conveyor 5 viewed in the direction of arrow A in FIG. The loading/unloading conveyor 5 has belt conveyors 60, 61, 62 that convey the magazine M in the direction of the arrow X,
Further, inside the conveyor 61 corresponding to the lifting unit 9, there is provided a belt conveyor 63 for conveying the magazine M in the direction of the arrow Y perpendicular to the arrow X. Symbols 64, 65, 66, and 67 are conveyors 6, respectively.
0, 61, 62, and 63 drive motors are shown. The Y-direction conveyor 63 is a lifting platform 6 that can be raised and lowered in the Z direction by a cylinder 68 using air or the like.
It is installed at 9. The lifting platform 69 is normally in a lower position, and the Y-direction conveyor 63 is the same as the X-direction conveyor 6.
It is located lower than 2. When the magazine M is conveyed by the conveyors 60, 61 to the position indicated by the symbol M', the conveyors 60, 61 stop. Then, the lifting platform 69 rises and the Y-direction conveyor 63 moves to the magazine.
M' is lifted to a higher position than the X direction conveyor 61. Next, the Y-direction conveyor 63 and the conveyor 20 of the elevating table 16 of the elevating unit 9 are driven, and the magazine M' is carried onto the elevating table 16 of the elevating unit 9. On the other hand, when sending the magazines loaded in the lifting unit 9 to the loading/unloading conveyor 5, the Y direction conveyor 63 is raised and the conveyor 20 of the lifting unit 9 and the Y direction conveyor 6
When the magazine 3 is driven in the opposite direction to that for storage, the magazine is transferred from the conveyor 20 to the conveyor 63.
Then, the Y-direction conveyor 63 is lowered to load the magazine onto the X-direction conveyor 61, and then the conveyors 61 and 62 are driven to carry out the magazine in the X-direction.

Next, the operation of the magazine stocker 3 of the printed board supply/discharge device as described above will be explained with reference to FIGS. 10A to 10C. Note that only relevant main parts are schematically illustrated in these figures.

(1) First, as shown in FIG. 10A, a magazine M containing printed boards into which circuit components are to be inserted is conveyed to the elevating unit 9 of the magazine stocker 3 by the loading/unloading conveyor 5. Then, as explained with reference to FIGS. 8 and 9, the magazine M is sent from the conveyor 5 to the lifting unit 9, and further sent from the lifting unit 9 to the lower stage 6A of the stock conveyor 6.
In the following explanation, the lower stock conveyor 6A is used as a stock stage for magazines containing printed boards before parts are inserted (hereinafter referred to as "unprocessed magazines"), and the upper stock conveyor 6B is used to store printed boards after parts are inserted. It is assumed that the magazine is used as a stock stage for a magazine containing plates (hereinafter referred to as a "processed magazine"). However, if the loading/unloading conveyor 5 is stopped and only the inserter 1 is operated unattended late at night, unprocessed magazines can be stored on both the upper and lower stock conveyors 6A and 6B first. In this case, at the end of the operation, processed magazines are still stored on both the upper and lower stock conveyors 6A and 6B.

(2) Next, the first magazine among the unprocessed magazines stored on the lower stock conveyor 6A is sent to the lifting unit 8 as shown in FIG. 10A, and then sent from the lifting unit 8 to the pitch feeding lifting unit 7. It will be done. The lifting unit 8 normally only serves as a relay unit between the stock conveyor 6 and the pitch feed lifting unit 7, but as described later, it basically has a "grouping function". Therefore, hereinafter, this will be referred to as a "grouping lifting unit."

(3) When the magazine M is fed into the pitch feed lifting unit 7, the magazine M is pitch fed upward as explained with reference to FIG. 3A, and the printed board P is transferred to the inserter 1 by the printed board transfer mechanism 4. feeding and discharging and inserting parts into the printed board P by the inserter 1 are performed.

(4) When the feeding and discharging of all the printed boards P in one magazine M and the component insertion are completed, the processed magazine M is sent from the pitch feeding lifting unit 7 to the grouping lifting unit 8 as shown in FIG. 10B. , and then sent to the upper stock conveyor 6B.

(5) And empty pitch feed lifting unit 7
At the same time, the elevating platform of the grouping elevating unit 8 is lowered, and the next unprocessed magazine M is moved from the lower stock conveyor 6A again as shown in FIG. 10A.
is sent to the pitch feed lifting unit 7, and the steps (3) and (4) above are repeated.

(6) On the other hand, the processed magazines M stored on the upper stock conveyor 6B are sent to the elevating unit 9 as shown in FIG. 10B, and the elevating conveyor 9 is lowered and sent to the loading/unloading conveyor 5. In addition, if the loading/unloading conveyor 5 is suspended, the lower stock conveyor 6
A, and the unprocessed magazines can be stored in the empty space after being sent to the pitch feed lifting unit 7.

Next, the "grouping function" of the grouping lifting unit 8 will be explained. As shown in FIG. 10C, when the magazine M is being fed and ejected by pitch feeding and evacuation of printed boards in the pitch feeding elevating unit 7, different types of magazines _M1 containing different printed boards are placed in the standby position of the lower stock conveyor 6A. If there is a grouping lift unit 8, the magazine _M1 can be transferred from the lower stock conveyor 6A to the upper stock conveyor 6B. As a result, the lower stock conveyor 6
The next magazine M of the same type after A can be fed to the standby position after the magazine _M1 of the different type has come out, and this magazine M of the same type can then be fed to the pitch feed lifting unit 7.

In this way, in the magazine stocker of the present invention, even if different types of magazines are mixed and stored on the stock conveyor 6, the grouping lifting unit 8 is used to change the arrangement order of the magazines and group the same or different types of magazines together. (grouping), they can be continuously conveyed to the printed board supply/discharge position (that is, the pitch feed lifting/lowering unit 7). Therefore, it is possible to continuously supply and discharge only the same kind of printed boards or different kinds of printed boards to and from the printed board processing equipment, which reduces the hassle of replacing jigs in the printed board processing equipment associated with processing different kinds of printed boards, and improves the processing speed of printed boards. It can be done with high efficiency.

Next, several other embodiments of the printed board transfer mechanism will be described. The printed board transfer mechanism 4A shown in FIG. 11 is basically similar to the mechanism 4 shown in FIGS. 1, 2, 3A and 3B. However, in the mechanism 4A, the guide rail 41
A is provided with two upper and lower printed board guide grooves, and the claw member 52A of the hand 46A is also provided with two upper and lower printed board grip grooves, and furthermore, two upper and lower printed board conveying chains 43A and 43B are provided. have. In this mechanism 4A, one of the upper and lower two stages of printed board guide grooves and printed board gripping grooves is used for supplying a printed board, and the other stage is used for ejecting a printed board. While the inserter 1 is inserting a component, the next printed board is taken out from the magazine M and kept waiting in the supply guide groove of the guide rail 41A, and after the previous printed board has been inserted, this printed board is ejected from the hand 46A. Grip it with the grip groove and move it from the hand 46A to the guide rail 41.
At the same time as the printed board is discharged into the discharge guide groove A, the printed board in the supply guide groove of the guide rail 41A can be fed into the supply grip groove of the hand 46A. As a result, compared to the mechanism 4 described above, the cycle of supplying and discharging printed boards can be shortened, and the operating rate of the printed board processing apparatus can be improved.

In addition, the printed board transfer mechanism 4B shown in FIG.
is different from either of the mechanisms 4 and 4A described above, and is equipped with a robot hand 72 that can move vertically and horizontally, and the hand 72 picks up the printed board P pushed out from the magazine M onto the base 71, and Inserter or in-circuit tester 1
The printed board is transported to a position 72' above the movable table 2, and is lowered there to mount the printed board on the movable table 2. Discharging the printed board from the movable table 2 to the magazine M is a completely reverse procedure to that in the case of supply.

Furthermore, the printed board transfer mechanism 4C shown in FIG. 13 is different from any of the previously described mechanisms 4, 4A, and 4B.
The movable table 2 of the inserter 1 is provided with two guide rails 2a and 2b, so that the printed board P can be attached and removed in the printed board loading/unloading direction of the magazine (arrow Y). And mechanism 4C
has a switching table 81 on a base 80 that can switch and move in the horizontal direction (arrows X ₁ , X ₂ ) perpendicular to the printed board loading/unloading direction Y, and three guide rails 81 a, 81 b, 81 c are provided on this. Two printed board receiving portions C ₁ and C ₂ are configured.
Further, the base 80 is provided with a printed board feeding mechanism 82 having a feeding claw 83. In this mechanism 4C, by switching the switching table 81 alternately in the directions of arrows X ₁ and X ₂ , the printed board sent out from the magazine is moved through one printed board receiving part (for example, C ₁ ) of the switching table 81. table 2
and from the movable table 2 to the other printed board receiving part (for example C ₂ ) of the switching table 81
After that, it is returned to the magazine. In this case, while one printed board is being fed to the movable table ₂ for processing, the switching table 81 is moved in the direction of the arrow ₁ , move the switching table again in the direction of arrow _X1 , and wait. Next, the printed circuit board after processing is placed in the second receiving part of the switching table.
When discharged to C ₂ , move the switching table 81 to arrow X ₂
direction, and feed the printed board from the first receiving portion _C1 to the movable table 2. While processing this printed board, the switching table 81 is moved in the direction of arrow _X1 , and the printed board in the second receiving portion _C2 is returned to the magazine. In the case of this mechanism 4C, as in the case of the mechanism 4A described above, the cycle for supplying and discharging printed boards can be shortened, and the operating rate of the printed board processing apparatus can be increased.

Effects of the Invention As described above, according to the present invention, the “return method”
It has the advantage of being compact and has high printed board stocking efficiency, and the magazine stocker has a "grouping function" that allows printed board magazines of the same type or different types to be delivered to the printed board supply/discharge position at the same time. This provides a printed board supply/discharge position that allows printed board processing such as testing and various tests to be performed with high efficiency.

[Brief explanation of drawings]

FIG. 1, FIG. 2, and FIG. 3A are perspective external views of a first embodiment of a printed board supply/discharge device according to the present invention;
3B is a schematic front view of the hand of the printed board transfer mechanism of the first embodiment as seen in the direction of arrow a in FIG. 3A, and FIGS. 4 and 5A are side views of the main parts; Partial perspective views from the rear and front sides of the pitch feed lifting unit of the first embodiment, No. 5B
The figure is a partially enlarged perspective view of Fig. 5A, Fig. 6A is a side view of the pitch feed stop mechanism of the pitch feed lifting unit, Fig. 6B is a control system block diagram of the pitch feed stop mechanism, and Figs. 7A and 7B. 8 is a side view and an exploded perspective view of the printed board checker, and FIG.
Plan view of the loading/unloading conveyor in the embodiment, No. 9
The figure is a side view taken along the line A-A in FIG. FIG. 7 is a diagram showing a different printed board transfer mechanism according to another embodiment of the invention. P...Printed board, M...Magazine, 1...Inserter, 2...Movable table, 3...Magazine stocker, 4, 4A, 4B, 4C...Printed board transfer mechanism, 5...Input/output conveyor , 6 (6A,
6B)... Stock conveyor, 7... Pitch feeding lifting unit, 8... Grouping lifting unit, 9... Lifting unit, 12... Belt conveyor, 13... Extrusion cylinder, 14... Printed board checker, 15 ... Column, 16 ... Lifting platform, 2
0... Belt conveyor, 21... Stop position marker, 21a... Teeth, 22... Photo sensor, 23
. . . Control circuit, 27 . . . Contact, 28 . . . Photo sensor.

Claims (1)

[Scope of Claims] 1. Storing a plurality of magazines storing printed boards in multiple stages, transporting the magazines to a printed board loading/unloading position, and at this position, moving the magazine so that its printed board storage section is at the printed board loading/unloading position. A magazine stocker 3 that feeds the magazines vertically in order to sequentially stop them, and a magazine stocker 3 that takes out printed boards from the magazine at the printed board supply/discharge position and supplies them to the printed board processing device, and discharges them from the printed board processing device after processing is completed. The printed board supply/discharge device is equipped with a printed board transfer mechanism 4 for returning printed boards to the same magazine, and each of the magazine stockers has two upper and lower stock conveyors 6 each capable of storing a plurality of magazines.
and 2 installed at both ends of the stock conveyor.
The magazine lift units 8 and 9 are disposed between one of the magazine lift units 8 and the printed board transfer mechanism 4, and are arranged to feed the printed boards in pitches in accordance with the storage pitch of the printed boards in the magazine. The magazine pitch feeding unit 7 is equipped with a magazine pitch feeding lifting/lowering unit 7, and the magazines fed to the magazine pitch feeding lifting/lowering unit 7 are provided with the above-mentioned upper and lower two stages of stock conveyor 6 and magazine lifting/lowering units 8, 9 at both ends of the stock conveyor. A printed board supply/discharge device characterized by being selectable. 2. In the printed board feeding/discharging device according to claim 1, each stage of the stock conveyor has a plurality of belt conveyors arranged in a row, each of which can be individually driven in both forward and reverse directions for horizontally conveying the magazine. Printed board supply/discharge device arranged in close proximity. 3. In the printed board feeding and discharging apparatus according to claim 2, each of the magazine lifting unit and the magazine pitch feeding lifting unit has a vertically movable lifting table, and the magazine is horizontally and vertically mounted on the lifting table. A printed board supply/discharge device equipped with a belt conveyor for conveying in both directions. 4. In the printed board feeding/discharging device according to claim 3, the magazine pitch feeding/elevating unit has teeth arranged in the vertical direction at the same pitch as the printed board accommodating section pitch of the magazine, and a pitch feed stop position marker member fixed to a fixed member of the unit; a photo sensor that moves up and down with the elevating table of the unit to detect the teeth of the marker member; and a photo sensor that detects the teeth of the marker member; a control means for stopping the lifting platform at a position where the lifting platform has been lowered or raised by a distance corresponding to 1/2 of the height of the teeth after detecting the height of the teeth. 5. In the printed board supply/discharge device according to any one of claims 1 to 4,
The magazine stocker is a printed board supply/discharge device comprising a printed board checker for checking the presence or absence of a printed board in the magazine that is being pitch-fed by the magazine pitch feeding/elevating unit. 6. In the printed board supply/discharge device according to claim 5, the printed board checker is provided so as to be able to extend into the printed board accommodating section of the magazine at the printed board loading/unloading position, and when the printed board reaches the printed board loading/unloading position. a printed board contactor that is driven by the printed board from a printed board non-detection position to a printed board detection position when moved;
A printed board supply/discharge device comprising a photo sensor that detects when the printed board contactor is driven to a printed board detection position.