JPH0549352B2 - - Google Patents

Description

Detailed Description of the Invention [Technical Field of the Invention] The present invention relates to a method for visually inspecting a card-shaped inspection object made of materials such as plastic, paper, metal, wood, or a composite thereof. Regarding a conveyance device.

[Conventional technology and problems]

Conventionally, cards have been used in banks, railways, and various other fields, but the visual inspection of these cards has been done manually by the naked eye. I have to. As described above, it is time-consuming for the inspector to manually flip each card one by one to expose the entire surface of the card, and handling a large number of cards not only requires skill, but also makes it difficult to increase the processing speed.

Furthermore, if an attempt is made to increase the processing speed by force, it becomes impossible to visually inspect the entire surface of the card, and it becomes impossible to visually inspect the entire surface of the card. Furthermore, if the work lasts for a long time, the worker's fatigue accumulates, which is bad for his health.

[Purpose of the invention]

In view of the above, the present invention is designed to transport the inspection surface of a card-shaped object to be inspected in a state that can be inspected visually or by an inspection device, and to automatically classify good cards and bad cards according to the inspection results. The present invention relates to a conveying device for a card-shaped object to be inspected.

[Summary of the invention]

The purpose of this is to provide an inspection object supply unit for aligning and placing the inspection objects to be inspected in an upright state;
A defective test object unloading section is provided in parallel with the test object supply section for arranging and discharging defective test objects; A table is provided along the edge of the table, and a table is provided along the edge of the table to supply the test object with the test object standing upright in the width direction of the table. The test object transport device is arranged along an edge of the table, and the test object transport device is arranged along an edge of the table. A guide member that guides the object to be inspected in an upright state, and a guide member that reciprocates along this guide member, holds the object to be inspected by a feed claw, and moves it along the guide member to the front end of the object supply section. from the first position to a second position at the front end of the unloading part adjacent to the object supplying part, and at the same time the second position.
an inspected object transport mechanism for intermittently transporting the inspected object from the position to a third position of an adjacent carry-out section; and an inspected object positioning mechanism for positioning the inspected object at a predetermined position for inspection at the first position. and the second
and a test object pushing mechanism for pushing out the test objects sent to the third position and the third position to respective delivery sections according to the test results, reciprocating movement of the test object sending mechanism, and the test object pushing mechanism. This is achieved by comprising a synchronization mechanism for synchronizing the movements of the

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings.

The following embodiment is an example in which the card-shaped inspection object conveying device of the present invention is applied to a card inspection device that optically detects the object.

In FIG. 1, a conveying device M of the present invention includes a table 1 that is tilted forward at a predetermined angle and for placing cards C in an upright and aligned state;
A card transport section 2 is provided along the front edge of the table 1 to feed the cards C one by one in the width direction of the table 1.
It has

The table 1 includes a card supply section 1a for feeding cards before inspection into a row, a defective card discharging section 1b adjacent to the card supply section 1a for discharging defective cards, and a defective card discharging section 1b adjacent to the defective card discharging section 1b for discharging defective cards. a good card carrying out section 1c which carries out good cards;
Temporary card placement section 1d provided near the upper end of the table 1 for temporarily placing cards to be inspected.
and a card storage section 1e formed at the upper end of the good card carrying out section 1c and for transferring good cards to a storage box.

A camera 3 for optically detecting the inspection surface of the card C is provided opposite to the front edge of the card supply section 1a of the table 1, and this camera 3 captures the image stored in the main body casing 4 of the card inspection device. A signal processing device 6 that is electrically connected to the processing device 5, connects the image processing device 5 and the transport device M, and electrically controls the transport section 2 of the transport device is housed in the main casing 4.

The card supplying section 1a, the defective card discharging section 1b, and the good card discharging section 1c of the table 1 include:
As shown in FIG. 2, the guide rail 7,
A part of the guide rail 7 protrudes from the table board 8, and a card C is placed on the protruding part and slid. And each card row C
As shown in FIG.
These pressing members urge each card row downward.

The card temporary placement section 1d is a card supply section 1a.
As shown in FIG. 4, cards C placed in a box 10 are placed on this placing portion 1d by turning the box 10 upside down, and a group of cards C placed here are placed next to the placing portion 1d. is pushed in by sliding it laterally onto the card supply section 1a. The card supply section 1a
Both sides are regulated by guide plates 11 and 12, and the upper ends of the temporary card placement section 1d and the defective card placement section 1b are partitioned by a guide plate 13 extending in the width direction.

As shown in FIGS. 1 and 5a, both sides of the good card carrying out section 1d are provided with guide plates 14,
5, and these two guide plates 14,1
5 is slightly wider than the width of card C. This is because, as shown in FIG. 6, one card C ₀ is placed on the table offset from the other cards in order to divide the good cards into a certain number of groups.

As shown in FIG. 5a, the upper end of the good card delivery section 1c is a flip-up card storage section 1e, and a flip-up bed 16 for this purpose is connected to the upper end of the table board 8 by a hinge 17. This hinge 17 is provided on a connecting plate 18.
There is a window 16 near the hinge 17 of the flip-up bed 16.
A stop spring 19 protrudes from the window 16b, and a knob 16a for hooking a hand is formed at the tip of the flip-up bed 16.

Box 20 for storing a certain number of good cards C
5c to 5f, a group of cards partitioned into a certain number by partition card C ₀ is shifted to the right in the figure, separated from the other cards, and the above-mentioned stopper is removed. While pushing down the spring 19, the group of cards C is lifted up by climbing over it and guided onto the head 16. A group of cards C is a spring 1
9, the stop spring 19 protrudes again and stops the group of cards C from descending. Thereafter, cover the box 20, hold the knob 16a, flip up the flip-up bed 16, and remove the box 20 from the flip-up bed 16. In this way, you can easily move a group of cards C to box 2.
It can be set to 0.

Note that the flip-up bed may be configured to flip up laterally as shown in FIG. That is, a hinge 22 may be provided on the side of the flip-up bed 21, and the bed may be flipped up around this hinge 22.

Furthermore, as shown in FIG. 8, side rails 7a, 7a similar to the guide rail 7 may be provided in place of the guide plate at the portion of the table 1 on which the card C slides.

Next, the configuration of the card transport section 2 will be described.

In FIG. 9, the card transport section 2 is connected to the table 1.
It has a rectangular main frame 30 extending in the width direction,
This main frame 30 consists of horizontal frames 31, 31 and vertical frames 32, 32.
Card receiving plates 33 and 34 for locking the upper and lower ends of the card C are provided on the front surface of the frame 31,
The card receiving plates 33 and 34 serve as guide members for guiding the card. A card feeding mechanism 35 that reciprocates along the longitudinal direction is provided on the front surface of the main frame 30, and is located at a position corresponding to the card supply section 1a of the main frame 30 (main frame 30 in the figure).
(near the left end of the camera)
A card positioning actuating piece 36 is provided for positioning the card in the normal position in front of the card positioning mechanism 3, and this actuating piece 36 moves the card positioning mechanism 3 up and down.
7.

A defective card pushing mechanism 38 and a good card pushing mechanism 39 are integrally provided on the right side of the main frame 30 in the drawing.

Each of the above mechanisms includes a crankshaft 42 on a main shaft 41 which is rotated by a timing belt 40, and first, second and third cams 43, 4.
4 and 45, these members form a synchronization mechanism for synchronizing the movements of the respective mechanisms.

The card feeding mechanism 35 includes a reciprocating frame 46
and a holding frame 4 that holds this frame 46.
7 and a link 49 to which the lower end of the holding frame 47 is connected via a self-aligning rolling bearing 48.
It has The holding frame 47 is capable of reciprocating along a slide rail 51 extending below the frame 30 via rollers 50, 50, . . . 50. The left and right edges of the slide rail 51 are held by the arms 4a, 4a of the main body casing 4 via bearings 52, 52, and a link 152 is connected from the right end of the slide rail 51 in the figure.
extends and a first cam follower 53 is attached to the lower end of this link 152, and when this first cam follower 53 contacts the first cam 43, the slide rail 51 comes to swing around its longitudinal axis. ing.

Reciprocating frame 46 of the card feeding mechanism 35
First and second feed claw bodies 153, 154 are provided on the frame 30 side of the frame 30, and the feed claw bodies 15
3 and 154 have their roots pivotally connected to shafts 155 and 156, respectively, and feed pawls 55 and 55 at opposite ends of the roots.
56 , the first feed pawl body 153 on the left side is connected to the first solenoid 57 , and the second feed pawl body 154 on the right side is connected to the second solenoid 58 .

The card positioning mechanism 37 moves the operating piece 36 up and down in synchronization with the feeding of the supplied card. Vertical link 60 to be moved and this vertical link 60
It consists of a bending link 61 having one end pivotally connected to the bending link 61 and a second cam follower 62 attached to the other end of the bending link 61.
2 is in contact with the circumferential surface of the second cam 44, and the bent link 61 is rotatably supported by a shaft 63 at its bent portion. This card positioning mechanism 37
As shown in FIG. 10, press the corner of the card C and operate the right edge of the card C against the vertical frame 32 on the left side of the frame 30 so that the card C before inspection is placed in the fixed position. It is pressed by the inclined surface 36a of the piece 36. As a result, the card C is positioned at a proper position in front of the camera 3.

The good card push-out mechanism 39 includes a push-out frame 64 pivotally attached to the main body casing 4 via a swing shaft 64a, good-quality card push-out pieces 65, 65 attached to the upper end of this frame 64, and the push-out frame 64. It has a link 66 extending downward from the lower end and a third cam follower 67 attached to this link 66, and this third cam follower 67 rolls on the cam surface of the third cam 45 to swing the extrusion frame 64. urge A root portion 166a of a defective card extrusion frame 166 is supported between the good card extrusion pieces 65, 65, and this root portion 16a is supported between the good card extrusion pieces 65, 65.
6a is an upper and lower extruded piece 65 by a pivot 166b.
held between. A third solenoid 68 is attached to the extrusion frame 64, and this third solenoid 68 is connected to an operating rod 69 as shown in FIG.
The tip of the operating rod 69 is normally connected to the window 16 of the root portion 166a of the defective card pushing frame 166.
6b, and when ejecting a defective card, the solenoid 68 is energized and the actuating rod 69 is activated.
is raised and inserted between the extrusion frame 64 and the defective card extrusion frame 166, thereby extruding the extrusion frame 166 toward the main frame 30.

In the horizontal frame 31 above the main frame 30, a position corresponding to the defective card ejecting part 1b and a position corresponding to the good card ejecting part 1c are provided with a respective one in cooperation with the extruding frame 166 and the extruding piece 65. Spring plates 70 and 71 are attached to support the upper side of the card pushed out into position.

Note that the operating piece 36 of the upper horizontal frame 31
A detection device 7 for detecting passage of the card is provided between the spring plate 70 and between the spring plates 70 and 71.
2,73 are provided.

In addition to the above-mentioned cams, two discs 74 and 75 are attached to the main shaft 41, and photoelectric switches 76 and 77 are provided corresponding to these discs. The photoelectric switch 77 is used to time the release of the second feed claw 56 to shift the position of the partitioned cards in order to separate the good cards into a certain number of cards, and the photoelectric switch 77 is used to release the third solenoid to remove the bad cards. This is to determine the timing for exciting the 68. Furthermore, an encoder 78 is connected to the main shaft 41 for timing various operations.

The signal processing device 5 inside the main body casing 4 includes:
As shown in Figure 11, it has a CPU80, and this
RAM82 and CPU80 are connected via BUS81.
The ROM 83 is connected, and the image processing device 5 is also connected via the interface 84, and the card C illuminated by the lights 85, 85 is connected.
The surface is inspected by camera 3. In addition,
Pulses from the encoder 78 are connected to the BUS 81 via a counter 86, and an input port 87 and an output port 88 are also connected to the BUS 81. The input port 87 has an encoder 78
, and set the excitation timing of the solenoid 57 and the timing to start image processing when the card feeding mechanism 35 escapes from in front of the card to be inspected according to the count value of the pulses of the encoder 78. A count value setting circuit 89 is connected to the operation panel 90 for
is connected. This operation panel 90 is provided with a setting switch 91 for setting reference data in the image processing device 5, an inspection switch 92 for inspecting the card C, and a stop switch 93 for stopping the card inspection. Furthermore, the detection devices 72 and 73 are connected to the input port 87, and these detection devices 72 and 73 count the number of bad and good cards by detecting the passage of the card C. .

The first solenoid 57 is connected to the output port 88 via a drive circuit 94, the second solenoid 58 is connected via an AND circuit 95 and a drive circuit 96, and the second solenoid 58 is also connected via an AND circuit 97 and a drive circuit 98. A third solenoid 68 is connected thereto. The AND circuits 95 and 97 include
Signals from photoelectric switches 76 and 77 are input, respectively, and the excitation timings of the second and third solenoids 58 and 68 are adjusted. In addition, output port 88
A motor 101 for rotating the main shaft 41 is connected to the main shaft 41 via a display panel 99 that displays the number of processed cards C and the like, and a motor drive circuit 100 .

Next, the operation of this device will be explained.

In FIGS. 12 and 13, the card C at the first position at the front end on the card supply section 1a
is held on both sides by first and second feed claws 55 and 56, and the tips 55a and 56 of the claws are
The protrusion length of 56a is shorter than the thickness of one card.
A portion of the front surface of the vertical frame 32 is cut out to create an escape space 32a when the first feed pawl 55 reciprocates. Furthermore, a partition post 1 is provided between the first position and a second position at the front end of the defective card carrying out section 1b.
10 is provided, and the front end of this partition post 110 is close to the card receiving plates 33, 34 to allow passage of only one card between them. If the card C in the first position is a good card, it is sent to the third position at the frontmost end of the good card discharge section via the second position. This state will be explained with reference to FIG. 14.

That is, the first and second feed claws 55 and 56
When placed on both sides of the position, hold the inspected card _C1 between both claws in the first position,
One end of the card C ₂ in the second position is inserted into the second feed claw 5.
Hook by 6. As the main shaft 41 rotates, the reciprocating frame 46 of the card feeding mechanism 35
moves along the slide rail 51 to the second position while holding the cards C ₁ and C ₂ (steps A to C).
At this time, the card _C2 held by the second feed claw 56 is transported to the third position. From this state, the reciprocating frame 46 returns to its original position, but at this time, the slide rail 51
3 and the first cam follower 53, the reciprocating frame 46 is tilted in the direction away from the main frame 30. Therefore, the first and second feed claws 55, 5
6 leaves cards C ₁ and C ₂ (D process). In this state, the reciprocating frame 46 returns to its original position while supporting both feed claws 55 and 56 (strokes E to F), and the stroke A begins.

The bad and good card pushing mechanisms 38 and 39 operate in synchronization with the card feeding mechanism 35,
If the inspected card C is good, the extrusion frame 64 swings clockwise in the figure due to the engagement between the third cam 45 and the third cam follower 67, as shown in FIG. Push the card into the card ejecting section 1c. At this time, if the card in the second position is a defective card, a defective signal detected via the camera 3 is sent from the CPU 80 to the output port 88.
At the same time, the signal from the photoelectric switch 77 is input to the AND circuit 97, and the third solenoid 68 is excited. As a result, as shown in FIG. 16, the defective card push-out frame 166 is pushed out toward the card C side, so that the defective card is pushed into the defective card ejecting section 1b at the same time as the good card. When good cards and bad cards are pushed into the respective ejecting sections 1b and 1c, the upper ends of the cards push up the lower ends of the leaf springs 70 and 71 to prevent them from returning to the lower ends of the leaf springs 70 and 71. It is locked. A groove 31a is provided in the lower horizontal frame 31 of the frame 30, and the lower end of the card pushed by the extrusion frame 64 and the defective card extrusion frame 166 is inserted into the groove 31a.

Note that if you want to divide good cards into a predetermined number of cards as shown in Figures 6 and 7, you can
82 by the CPU 80 (FIG. 11), and when the predetermined number of sheets is detected by the detection device 72,
73, the signal is given to the AND circuit 95 via the output port 88, and when the signal from the photoelectric switch 76 is given to the AND circuit 95, the solenoid 58 is energized and the partition card is activated. The second feed claw 56 is released from the partition card C ₀ before C ₀ completely reaches the third position. In this state, divider card C ₀
is pushed into the good card ejecting section 1c, resulting in a state as shown in FIG. 17.

During the stop operation, in FIG. 11, the pulse signal from the encoder 78 is given to the drive circuit 94 via the CPU 80, and when the reciprocating frame 46 reaches the second position in FIG. 14 (stroke D),
When the first feeding claw 55 is attracted to the frame 46 side and the frame 46 returns to its original position, the first solenoid 57 is energized so that no new card is fed.

Note that the positions of the defective card carrying out section 1b and the good card carrying out section 1c may be switched.

〔Effect of the invention〕

Since the present invention is configured as described above, it is possible to intermittently transport the card-shaped object to be inspected to a predetermined position with the inspection surface upright, and it is also possible to automatically distinguish between good cards and bad cards according to the inspection results. This has the effect of being able to be divided into

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the transport position of the present invention applied to a card inspection device, FIG. 2 is a partial cross-sectional view of the table, and FIG. 3 is a side view showing a state in which cards are placed on the table. Figures 4a to 4c are explanatory diagrams of the operation when placing a card on the card supply unit, Figure 5a is a plan view of the card storage unit, and Figure 5b is a plan view of the card storage unit.
Figures 5c to 5f are explanatory diagrams of the operation of the card storage section, Figure 6 is a state diagram in which cards are partitioned into predetermined numbers by partition cards, and Figure 7 is a sectional view taken along line A-A in Figure a.
The figure is an explanatory diagram of another embodiment of the card storage section, FIG. 8 is an explanatory diagram of another embodiment of the table on which cards are placed,
FIG. 9 is a perspective view of the card transport section, FIG. 10a,
FIG. 10b is an explanatory diagram of the operation of the card positioning mechanism;
Fig. 11 is a block diagram of the electrical system of this conveyance device, Fig. 12 is an explanatory diagram of the operation of the feed claw, and Fig. 1
Figure 3 is a sectional view taken along line B-B in Figure 12, Figure 14 is an explanatory diagram of the operation of the feeding claw, Figures 15a and 15b are explanatory diagrams of the operation of the good card pushing mechanism, and Figures 16a and 16b are defective. An explanatory diagram of the action of the card ejection mechanism,
FIG. 17 is an explanatory diagram of the operation of the second feed claw when dividing good cards into a fixed number of cards. 1...Table, 2...Card transport section, 3...
Camera, 5... Image processing device, 16... Flip-up bed, 30... Main frame, 35... Card feeding mechanism, 37... Card positioning mechanism, 38...
Bad card push-out mechanism, 39... Good card push-out mechanism.

Claims (1)

[Claims] 1. A test object supply section for aligning and placing the test objects to be inspected in an upright state, and a defective section installed in parallel to this test object supply section for aligning and discharging defective test objects. A table consisting of a test object carrying-out section and a good test object carrying-out section which is provided in parallel with the test object supplying section and for aligning and carrying out good test objects; A test object is provided for intermittently transporting the test object from the test object supply section to the defective test object unloading section or the good test object unloading section with the test object standing upright in the width direction of the table. The test object transport device includes a guide member disposed along the edge of the table and guides the test object in an upright state, and the test object transport device reciprocates along the guide member,
The object to be inspected is held by a feed claw and sent along a guide member from a first position at the front end of the object supply section to a second position at the front end of the carry-out section adjacent to the object supply section. , at the same time, an inspection object feeding mechanism for intermittently transporting the inspection object from the second position to a third position of an adjacent carry-out section; and a mechanism for positioning the inspection object at a predetermined position for inspection at the first position. an inspected object positioning mechanism; an inspected object pushing mechanism for pushing out the inspected objects sent to the second position and the third position to respective delivery sections according to the test results; and the inspected object sending mechanism. 1. A conveying device for a card-shaped object to be inspected, comprising a synchronizing mechanism for synchronizing the reciprocating movement of the object to be inspected and the movement of the object pushing mechanism.