JPS618182A - Inspection device for card-shaped body to be inspected - 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 [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 turn over 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 see the entire surface of the card, and only a portion thereof becomes visible. Furthermore, when an inspection lasts a long time, a decrease in inspection speed and erroneous judgments due to operator fatigue are unavoidable, and two or three types of checks are often performed.

In addition, various inspection devices have been proposed during the card manufacturing process, but these not only tend to cause misjudgments due to image misalignment, but also have slow processing speeds, and are slow in transporting objects to be inspected. There was no practical inspection device that took this into consideration.

(Purpose of the Invention) In view of the above, the present invention transports a card-shaped object to be inspected in a state where the inspection surface can be inspected visually or by an inspection device, and automatically distinguishes good cards and bad cards according to the inspection results. The present invention relates to a transport device for card-shaped test objects that can be divided into sections.

[Summary of the invention]

The purpose of this is to have an inspection object supply section for aligning and placing the inspection objects to be inspected in an upright state, and a test object supply section that is installed in parallel to this inspection object supply section to align and discharge defective inspection objects. a table consisting of a defective inspection object carrying-out section for carrying out the inspection, and a good inspection object carrying-out section that is provided in parallel with the inspection object supplying section and for aligning and carrying out the good inspection objects, and an edge of this table; is installed along the width of the table to intermittently transport the test objects (with the test objects standing upright in the width direction of the table) from the test object supply section to the defective test object transport section or the good test object transport section. and a first position located at the front end of the test object supply section of the test object transport device, and are provided opposite to a first position located at the front end of the test object supplying section of the test object transport device, and inspect the surface of the card held at the first position. Camera and 1. The image processing device is used to compare the reference image captured in advance and the inspection image to determine pass/fail, and the image processing device is controlled in accordance with the timing of the transport device, and the inspection image from the image processing device is and a signal processing device that operates a test object pushing mechanism according to the result, and the test object transporting device includes a guide member disposed along the edge of the table and guiding the test object in an upright state. , reciprocates along these two guide members, holds the object to be inspected by a feed claw, and transports it along the guide member from a first position at the front end of the object to be inspected supply section to the object to be inspected supply section. to a second position at the front end of the unloading section adjacent to the
an inspection object transport mechanism for intermittently transporting the inspection object to the first position; an inspection object positioning mechanism for positioning the inspection object at a predetermined position for inspection at the first position; and the second position and the third position. A test object pushing mechanism for pushing out the test objects sent to the test object to the respective delivery sections according to the test results, and synchronizing the reciprocating movement of the test object sending mechanism and the movement of the test object pushing mechanism. This is achieved by comprising a tuning mechanism for

[Embodiments of the invention]

In FIG. 1, the inspection device 1M of the present invention includes a table 1 that is tilted forward at a predetermined angle and on which cards C are placed in a vertically aligned state, and a table 1 that is provided along the front edge of this table 1. , and a card conveying section 2 for conveying cards C one by one in one width direction of the table 1.

The table 1 includes a card supply section 1a for feeding cards to be inspected into one 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. A good card carry-out section 1C for carrying out good cards; a card temporary placement section 1d for temporarily placing cards to be inspected near the upper end of the table 1; and an upper end of the good card carry-out section 1c. A card storage section 1 formed in
Consists of e.

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 is housed in the main body casing 4 of the card inspection device M. The main casing 4 includes the image processing device 5 and the conveying section N.
A signal processing device 6 for electrically controlling the transport section 2 of the transport device T is housed.

As shown in FIG. 2, guide rails 7.7 are provided in the card supply section 1a, defective card discharging section 1b, and good card discharging section 1c of the table 1 in the longitudinal direction. It protrudes from the table board 8, and the card C is placed on the protruding portion and slid. The rear end of each card row C is connected to a pushing member 9 as shown in FIG.
．． 9.9, and these pushing members urge each card row downward.

The card temporary placement section 1d is adjacent to the card supply section 1a, and as shown in FIG. The group of cards C placed here are laterally slid and pushed onto the card supply section 1a. Both sides of the card supply section 1a 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 provided with guide plates 1 extending in the width direction.
It is separated by 3.

As shown in FIGS. 1 and 5a, both sides of the good card carrying out section 1d are regulated by guide plates 14.degree. 15, and the distance between these two guide plates 14.degree. ing. This is because, as shown in FIG. 6, one card C6 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 carrying out 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. 17 is provided on the connection plate 18.

A window 16b is provided near the hinge 17 of the flip-up bed 16, a retaining 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. .

When returning a certain number of good cards C to the card storage box 2°, as shown in FIGS. Shift the cards to the right to separate them from the other cards, push down the stop spring 19 and climb over it to flip up the group of cards C and guide them onto the head 16. When the group of cards C passes the stop spring 19, the stop spring 19 projects again to stop the group of cards C from descending. After that, cover the box 2o, hold the knob 16a and flip up the flip-up bed 16, and
lift it up and remove it from the bed 16. If you do this,
You can easily put a group of cards C into the box 20 and make a copy.

Note that the flip-up bed may be flipped 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 flip-up bed 21 may be flipped up around the hinge 2"2.

In addition, as shown in FIG. 8, a guide rail 7 (i5
It is also possible to provide side rails a and 7a of the same type.

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

In FIG. 9, the card transport section 2 has a rectangular main frame 3o extending in the width direction of the table 1. Card receiving plates 33, 34 for locking the upper and lower ends of the card C are provided on the front surface, and these frame 31 and receiving plates 33, 34 constitute a guide member 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 a card feeding mechanism 35 is provided at a position corresponding to the card feeding section 1a of the main frame 30 (near the left end of the main frame 30 in the figure). A card positioning actuating piece 36 is provided for positioning the supplied card at a normal position in front of the camera 3, and this actuating piece 36 forms part of a card positioning mechanism 37 for moving the card up and down. .

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-mentioned mechanisms is driven by a crankshaft 42 on a main shaft 41 rotated by a timing belt 40 and first, second and third cams 43°44.45, and these members synchronize the movements of each of the above-mentioned mechanisms with each other. It forms a tuning mechanism for

The card feeding mechanism 35 includes a reciprocating frame 46, a holding frame 47 that holds the frame 46, and a link 49 to which the lower end of the holding frame 47 is connected via a self-aligning rolling bearing 48. There is. The holding frame 47 has an O-ra 50.50. ... 50, and is capable of reciprocating along a slide rail 51 extending below the frame 30. The slide rail 51
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 extends from the right end of the slide rail 51 in the drawing. A first cam follower 53 is attached, and when the first cam follower 53 contacts the first cam 43, the slide rail 51 swings about its longitudinal axis.

On the frame 30 side of the reciprocating frame 46 of the card feeder v435, there are first and second feed claw bodies 153.15.
The roots of the feed claw bodies 153 and 154 are pivotally connected to shafts 155 and 156, respectively, and feed claws 55 and 56 are provided at the opposite end of the roots, and the first feed claw body 153 on the left is connected to the first renoid 57, and the second on the right
The feed pawl 154 is connected to the second solenoid 58.

The card positioning mechanism 37 moves the work piece 36 up and down in synchronization with the feeding of the supplied card. A vertical link 60 to be moved, a bending link 61 having one end pivotally connected to the vertical link 60, and a second bending link 61 attached to the other end of the bending link 61.
This cam follower 6 consists of a cam follower 62.
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.
The corner of the card C is pressed and the left edge of the card C is pressed against the vertical frame 32 on the left side of the frame 30 with the inclined surface 36a of the actuating piece 36. With this, camera 3
Card C is positioned at a normal position in front of.

The good card extrusion mechanism 39 includes an extrusion frame 64q pivotally connected to the main body casing 4 via a swing shaft 64a;
It has a good card push-out piece 65.65 attached to the upper end of this frame 64, a link 66 extending downward from the lower end of the push-out frame 64, and a third cam follower 67 attached to this link 66. The three-cam follower 67 rolls on the cam surface of the third cam 45 and causes the extrusion frame 64 to swing. A root portion 166a of the defective card extrusion frame 166 is supported by the good card extrusion piece 65.65m1, and this root portion 166a is connected to the pivot 166.
b is held between the upper and lower extruded pieces 65. A third solenoid 68 is attached to the extrusion frame 64, and the third solenoid 68 has an operating rod 69 as shown in FIG. Window 166 at the root 166a of
When a defective card is to be ejected, the solenoid 68 is energized to raise the operating rod 69 and inserted between the extrusion frame 64 and the defective card extrusion frame 166, thereby pushing the extrusion frame 166 out. It is pushed out toward the main frame 30 side.

A position of the horizontal frame 31 above the main frame 30 corresponding to the defective card ejection portion 1b and the good card ejection portion 1
Spring plates 70 and 71 are attached to the positions corresponding to C, respectively, to cooperate with the extrusion frame 66 and the extrusion piece 65 to support the upper sides of the cards extruded to the respective positions.

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.
As will be described later, the second feed claw 56 is moved so as to shift the position of the partition cards in order to partition the good cards into a certain number of cards.
The photoelectric switch 77 is used to determine the timing for energizing the third solenoid 68 in order to remove the defective card. 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 has a CPLI 80, as shown in FIG. The device 5 is connected and the surface of the card C illuminated by the illumination 85.85 is inspected by the camera 3.

The BLIS 81 is connected to pulses from the encoder 78 via a counter 86, as well as an input port 87 and an output port 88. The count value of the encoder 78 is set in the input port 87, and the excitation timing of the solenoid 57 and the timing when the card feeding mechanism 35 escapes from in front of the card to be inspected are determined according to the count value of the pulses of the encoder 78. A count value setting circuit 89 for setting the timing to start image processing is connected, as well as an operation panel 90. This operation panel 90 includes 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 are provided. Furthermore, the input port 87 is connected to the detection device 172.
．． A first solenoid 57 is connected to the output boat 88, and these detection devices 72 and 73 count the number of bad and good cards by detecting the passage of the card C. The second solenoid 58 is connected via an AND circuit 95 and a drive circuit 96, and the third solenoid 68 is connected via an AND circuit 97 and a drive circuit 98. . The AND circuit 9
5.97, signals from photoelectric switches 76.77 are input, respectively, and the excitation timings of the second and third solenoids 58.68 are adjusted. Further, a motor 101 for rotating the main shaft 41 is connected to the output boat 88 via a display panel 99 that displays the number of cards C processed, etc., 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 of the front end of the rope on the card supply unit 1a is held on both sides by the first and second feed claws 55, 56, and the tip of the claw 55a.

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. Further, a partition plug 110 is provided between the first position and a second position at the front end of the defective card carrying out section 1b, and this partition plug 11
The front end of the 0 is close to the card receiving plates 33 and 34 to allow passage of only one card between them. 1st
If the card C in the 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, when the first and second feed claws 55 and 56 are located on both sides of the first position, the card C that has been inspected is placed between the two claws.
1 is held at the first position, and one end of the card C2 at the second position is hooked by the second feeding claw 56. As the main shaft 41 rotates, the reciprocating frame 46 of the card feeding mechanism 35 moves the card C along the slide rail 51.
Move to the second position while holding 1°C2 (A-C process). 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 moves in a direction that moves the reciprocating frame 46 away from the main frame 30 due to the engagement between the first cam 43 and the first cam follower 53. Therefore, the first and second
The feed claws 55 and 56 are separated from the cards C1 and C2 (D process). In this state, the reciprocating frame 46 has both feed claws 55.
While supporting 56, the robot returns to the original position (E-F process), and the forward process starts.

The defective and good card ejecting mechanisms 38 and 39 operate in synchronization with the predistribution card feeding mechanism 35, and if the inspected card C is good, the ejecting frame 64 moves to the third cam as shown in FIG. 45 and the third cam follower 67, the card swings clockwise in the drawing to push the good card C into the good card delivery section 1C. At this time, if the card in the second position is a defective card, the defect signal detected via the camera 3 is transmitted from the CPU 80 to the AND circuit 97 via the output port 88, and the signal from the photoelectric switch 77 is transmitted to the AND circuit 97. The signal is input to the circuit 97 and the third solenoid 68 is energized. As a result, the defective card push-out frame 166 is pushed out toward the card C side as shown in FIG.
Push it into b. When a good card and a bad card are pushed into the respective ejection sections 1b and lc, the upper end of the card pushes up the lower end of the leaf spring 70, 71 and the leaf spring 7
They are locked at the lower end of 0.71 to prevent them from returning.

Note that a groove 3 is provided in the lower horizontal frame 31 of the frame 30.
1a is provided, and the lower end of the card pushed by the push-out frame 64 and the defective card push-out frame 166 is inserted into the hole 31a.

In addition, if you want to divide the good cards into a predetermined number of cards as shown in FIGS. 6 and 17, the CPU
o (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. When a signal from the photoelectric switch 76 is given to
The feed claw 56 is released from the partition card C8. In this state, the partition card C6 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 applied 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.

In addition, the defective card carrying out section 1b and the good card carrying out section 1
The position of C may be swapped.

Next, the control program of the present invention will be explained.

In FIG. 18, first, it is determined whether the I10 boat 88°89 (separated in FIG. 11, but integrated) is to be used as an input boat or an output boat, and the operating form of the counter 86 is determined. Setup Step 100), Initialize the device Step 101
), external set values such as the count value of the encoder 78 for the excitation timing of the solenoid 57 etc. are read (step 102).

Next, turn the setting switch 91 ON, and if it is turned on, set a counter on the RAM that takes the number of non-defective sheets processed and the number of divided sheets as arguments (step 104), read the good card with the camera, and process the reference data as an image. The information is stored in the device 5 (step 105). At this point, if the setting switch 91 is turned on again, new counter settings and reference data can be created, and if the setting switch is not turned on again (step 106), the inspection switch 92 is turned on to start card inspection. .

Then, the motor 101 starts to drive (step 108),
Inspection processing is started (step 109), and if the card is determined to be good, the OK clamp is turned on.Step 11
1) As the inspection continues, OK card integration and partition counter addition are performed (step 112).
When the partition counter reaches a set value of 250 cards, for example, the second feed claw 56 is activated to release the cards.

(Steps 113.1144).

After that, the partition counter is initialized (Step 115)
When the stop switch 93 is turned on, the motor 101 is stopped (step 119). Also, if it is determined in step 110 that the card is defective, the NG clamp will light up and step 11
6) The third solenoid 68 is energized and the defective card is ejected from the defective card ejecting section 1bi. In step 118, if the stop switch 93 is not pressed, the card inspection continues.

Next, the reference data setting process in step 105 is performed in the 20th
This is done as shown in the figure. That is, the lamp indicating the setting process is turned on and the setting completion lamp is turned off (Step 120), the motor 101 is placed in constant speed mode (Step 121), the first feed claw 55 is released from the card (Step 122), the motor 101 The brake is released (step 123), and the zero point signal of the rotary encoder 78 is monitored (steps 124, 125). Next, the count value of the counter 86 of the rotary encoder 78 is read, and the set value of the count setting circuit 89 (setting of when the camera 3 reads the image) is compared with the count value of the counter 86 of the rotary encoder 78, and these values are calculated. If they match, the camera 3 reads the good card and stores the reference data in the image processing device (step 12).
7).

When the image processing device memorizes the reference data, the reference data setting completion lamp lights up (step 129), and when the count value of the encoder 78 is read and each feed pawl falls to the position where it should stop, the motor 101 is stopped (step 129). 130
~132), further applies the brake to the motor 101 and turns off the lamp during the setting process (steps 133 and 134).
Return to step 106.

The motor starting process in step 108 in FIG.
As shown in the figure, the lamp indicating that the inspection process is in progress is turned on (step 140), the first feed claw 55 is released, and the second feed claw 56 is set to hold the card (step 141.1).
42), the third solenoid 68 is de-energized and the motor 101 is set to variable speed mode (steps 143 and 14).
4).

Next, the brake of the motor 101 is released, the zero point signal of the rotary encoder 78 is monitored, and if the zero point signal is output, the process returns to the inspection process (step 1o9).

Furthermore, the inspection process of step 109 in FIG.
As shown in the figure, the count value of the encoder counter 86 is read (step 15o), and when the image reading point (when the card feeding mechanism 35 comes off from the front of the camera) is reached, the first feeding claw 55 is turned on and the card is read. Preparations are made to return the feeding mechanism 35 to its original position (step 152). Subsequently, an inspection process is executed (step 153). Next, the process returns to the step of determining whether the card is good or bad (step 11o).

FIG. 23 shows the details of the stop processing step 119 in FIG. 19. While reading the encoder counter value (step 160), the detection device 72 detects whether or not the card has been sent to the second position. , if it has been fed, the first feeding claw 55 is released (step 161). Next, the card sent to the second position is sent to the third position at the right timing, and in order to stop the card feeding mechanism 35 at a predetermined stop position at the same time, the motor 101 is stopped and there is a slight delay. Then, the brake is applied and the balance wheel under inspection is turned off (steps 163 to 170).

Next, an image inspection method of the image processing device 5 will be explained. In FIG. 24, camera 3 captures image data and
Digital conversion is performed via the D converter 200, and the switching circuit S
It is applied to memory M1 or M2 via W1. Memory M
1 is for storing non-defective image data or reference image data, M2 is for storing inspection image data, and the non-defective image data input to the memory M1 is subjected to edge masking via the edge masking processing circuit 203. It is processed and input into memory M2. Also, both memories M1
．． The data stored in M2 are compared by each pixel density value comparison circuit 4, and the one having a larger value is stored in the memory M1, and the difference is detected by each pixel density value calculation circuit 205 and stored in the memory M2.

The output of the memory M2 is also given to the pixel number detection circuit 206, where the number of pixels is detected according to the judgment level signal from the judgment level setting circuit 207, and this detection result is sent to the switching circuit SW.
2 in the reference data storage circuit 208 or the test data storage circuit 209, and both storage circuits 208, 209
The stored contents are given to the determination circuit 210 to determine whether it is good or bad.

FIGS. 25 and 26 are waveform diagrams showing a flowchart 1 and data of each part for explaining the operation of the embodiment shown in FIG. 24, and based on these figures, nf! according to the present invention! !
Process A will be explained.

First, switching circuit SW1. With SW2 on the setting side, the non-defective image data is input into the first image memory M1 (S11). The resulting image is as shown in FIG. 26(a). Edge image data is created by an edge masking processing circuit using the non-defective image data stored in the memory M1.

This is done as follows. Good product image data in the X-axis direction,
It is shifted by an arbitrarily set number of pixels in four directions: the Y-axis direction, the +456 direction and the 145° direction with respect to the X-axis, and when the change in density of the image exceeds a preset level, it is determined to be an edge.

Then, the tolerance value near the edge is raised by another preset number of pixels to a level (hereinafter referred to as masking level) that is equal to or higher than the maximum level of non-defective image data plus the tolerance value for inspection judgment. , and other parts are set to zero.

This image is called an edge image and is stored in the second image memory M2. This stored data is as shown in FIG. 26(b).

Using the edge image data stored in the memory M2, the pixel number detection circuit 206 detects the number of pixels A in the edge masking area.
(813). In other words, the number of pixels in the non-zero portion in the edge image is calculated, and this is stored in the M semi-data storage circuit 208.
and later used for comparison with the number of pixels detected from the inspection image data.

At this time, a determination level for reference data is given to the pixel number detection circuit 206 from the determination level setting circuit 207.

Next, each pixel density comparison circuit 204 compares the non-defective image data stored in the memory M1 (shown in FIG. 26(a)) and the edge image data stored in the memory M2 (shown in FIG. 26(b)).
) shown in the figure) for each pixel, and the larger value is taken and stored in the memory M1. That is, when the data value in memory M1 is small, it is changed to the data value in memory M2. What is created in this way is the reference image data, and the second
It is as shown in Figure 6 (C).

This reference image data has the edge portion of the non-defective image raised to the masking level, while the other portions remain as the non-defective image, and includes a mask to prevent misjudgment at the edge portion due to positional deviation. be. As described above, by setting the masking level to a level equal to or higher than the maximum level of the non-defective image data plus the tolerance for inspection judgment, the inspection judgment is made when the absolute value of the difference between the reference image data and the non-defective image data is taken. The number of pixels having a level equal to or higher than the tolerance value becomes equal to the number of pixels in the edge masking area. Therefore, as described later, if the difference between the reference image data and the inspection image data is calculated, and the positional deviation of the inspection image data is within the width of the edge mask, the inspection judgment is acceptable when there is no defect in the inspection image. The number of pixels having a level equal to or higher than the value is equal to the number of pixels in the edge masking area. Furthermore, if there is a defect in the inspection image, the number of pixels exceeding the inspection determination tolerance increases by the number of pixels in the defective portion.

After the reference image data is stored in the memory M1, the switching circuit SW1.8W2 is then set to the inspection side and the image data to be inspected is stored in the memory M2 instead of the edge mask data (815). It is assumed that this inspection image data includes a defective portion as shown in FIG. 26 (d>).

Then, the pixel number density value calculation circuit 205 calculates the absolute value of the difference between the inspection image data in the memory M2 and the reference image data in the memory M10, and inputs the result to the memory M2 (816). The absolute value of this difference is as shown in FIG. 26(e).

The pixel number detection circuit 206 judges the data stored in the memory M2 based on the inspection data level from the judgment level setting circuit 207, and detects the number of pixels B that is equal to or larger than the inspection judgment tolerance value (817). This detected value is stored in the test data storage circuit 209 via the switching circuit SW2.

With this storage, the determination circuit 210 is given the edge masking area pixel number A from the reference data storage circuit 208 and the pixel number B that is equal to or higher than the inspection determination i Furuzuke from the inspection data storage circuit 209, and performs a pixel number comparison. Then, when B-A is C, it is good. When B-A>C, it is bad. However, C is the allowable number of defective pixels.

It is determined that This concludes the image test,
Thereafter, other images will be inspected in the same manner.

〔Effect of the invention〕

Since the present invention is configured as described above, the object to be inspected can be inspected with a camera at a regular position, eliminating false judgments, and the objects to be inspected can be quickly sorted into non-defective items and defective items.

[Brief explanation of the drawing]

Fig. 1 is a perspective view when the transport position of the present invention is 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 the 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,
Figure 5b is a sectional view taken along the line A-A in Figure 5a, and Figures 5C to 5f.
The figure is an explanatory diagram of the operation of the card storage section, FIG. 6 is a diagram showing a state in which cards are partitioned into predetermined numbers of cards, FIG. 7 is an explanatory diagram of another embodiment of the card storage section, and FIG. FIG. 9 is a perspective view of the card transport unit, FIG. Block diagram, Fig. 12 is an explanatory diagram of the action of the feed claw, Fig. 13 is a sectional view taken along B-8 in Fig. 12, Fig. 14 is an explanatory diagram of the action of the feed claw, and Figs. 15a and 15b are good card extrusion. Fig. 16a and 16b are explanatory diagrams of the operation of the mechanism, Fig. 16a and 16b are explanatory diagrams of the operation of the defective card pushing mechanism, Fig. 17 is an explanatory diagram of the operation of the second feeding claw when dividing good cards into a fixed number, and Fig. 18 is an explanatory diagram of the operation of the second feed claw when dividing good cards into a certain number. 19 is a flowchart showing a continuation of FIG. 18, FIG. 20 is a detailed flowchart of the reference data processing step in FIG. 18, and FIG. 21 is a motor flowchart in FIG. 19. 22 is a detailed flowchart of the inspection processing step; FIG. 23 is a detailed flowchart of the stop processing step of FIG. 19; FIG. 24 is a control block diagram of the image processing device; FIG. 25 is a flowchart of the image inspection method of the image processing apparatus, and FIGS. 26(a) to 26(e) are explanatory diagrams showing data handled in the steps of FIG. 25 using waveforms. DESCRIPTION OF SYMBOLS 1...Table, 2...Card conveyance part, 3...Camera, 5...Image processing device, 16...Elevated bed, 30...Main frame, 35...Card feeding mechanism, 37... card positioning mechanism, 38... bad card pushing mechanism, 39... good card pushing mechanism. Applicant's representative Kiyoshi Inomata Figure 2 Figure 4 Figure 5/nl Figure 14 - Muro Tsuikaga Charcoal Figure 16 (a) (b) Figure 1
Figure 7 Figure 20 Figure 21 Figure 23 Good signal Figure 25 Special. Indication of the case of Mr. Manabu Shiga, Director-General of the Agency, dated October 17, 1980, Patent Application No. 129565, Title of the invention, Inspection equipment for card-shaped objects to be inspected. Relationship with the case of the person making the amendment Patent applicant (289> Dai Nippon Printing Co., Ltd.

Claims (1)

[Claims] A test object supply section for aligning and placing the test objects to be inspected in an upright state, and a defective test object supply section provided in parallel with the test object supply section for aligning and discharging defective test objects. a table consisting of an inspection object carrying-out section and a good inspection object carrying-out section that is provided in parallel with the inspection object supply section and for aligning and carrying out good inspection objects; and a table that is provided along the edge of this table. A test object for intermittently transporting the test object from the test object supply section to the defective test object carry-out section or the good test object carry-out section with the test object standing upright in the width direction of the table. a transport device; a camera provided opposite to a first position located at a front end of the test object supply section of the test object transport device for inspecting the surface of the card held at the first position; , an image processing device for comparing a reference image captured in advance and a test image to determine quality;
It is comprised of a signal processing device that controls an image processing device in accordance with the timing of the transport device and further operates a test object pushing mechanism based on the inspection results from the image processing device, and the test object transport device A guide member is disposed along the edge and guides the object to be inspected in an upright state; from a first position at the front end of the test object supply section to a second position at the front end of the carry-out section adjacent to the test object supply section;
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. , a test object pushing mechanism for pushing out the test objects sent to the second position and the third position to the respective delivery sections according to the test results; a reciprocating movement of the test object feeding mechanism; 1. An inspection device for a card-shaped object to be inspected, comprising a synchronizing mechanism for synchronizing the movement of an object-to-be-inspected pushing mechanism.