JPH0648400Y2 - Nori inspection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION << Industrial Application Field >> The present invention relates to a seaweed inspection device that inspects seaweed and determines whether the seaweed is good or bad.

<Prior Art> Nori, which is made by filtering red algae and green algae like paper and then drying it, has conventionally been manually inspected for its quality.

However, since such an inspection method cannot improve the inspection accuracy and the inspection speed, a seaweed inspection apparatus that automatically performs this has been developed and used.

This seaweed inspection device has a transport unit that transports the seaweed, a line sensor that captures the seaweed that is transported by this transport unit, and the output of this line sensor is processed to determine whether the seaweed has a width or lateral cracks. It is equipped with a processing unit that detects the, and a display unit that displays the detection result of this processing unit, and detects this when the width of the seaweed is insufficient or when the seaweed cracks sideways. Display on the display.

<< Problems to be solved by the device >> By the way, in such a conventional seaweed inspection device,
Sometimes, even good seaweed was judged to be defective, but in this case, it was often unclear why this seaweed was judged to be defective.

In such a case, it is often not known whether this seaweed has a defect or whether there is a problem on the device side. If this is left as it is, the seaweed selection efficiency will decrease.

In view of the above circumstances, the present invention can immediately know why the seaweed that has been determined to be defective was determined to be defective, and if there is a cause on the device side by this, the seaweed can be promptly removed. It is an object of the present invention to provide a seaweed inspection device that can prevent the sorting efficiency of the seaweed from decreasing.

<< Means for Solving Problems >> In order to solve the above problems, the seaweed inspection device according to the present invention is a maintenance operation for the seaweed inspection device that takes in the data of the seaweed by each sensor and judges the quality of the seaweed. When the maintenance mode is set by the mode changeover switch that supplies a command to operate in maintenance mode and this mode changeover switch, the defective state of seaweed obtained by each sensor is coded and displayed on the display along with the number of defective sheets. And a control unit for displaying.

<< Embodiment >> FIG. 1 is a block diagram showing an embodiment of the seaweed inspection apparatus according to the present invention.

The seaweed inspection apparatus shown in this figure includes a transport unit 1 and a sensor unit 2.
The processing unit 3 and the switching unit 4 are provided, and at the time of inspection, when the seaweed 5 is inserted, the seaweed 5 is conveyed while being imaged, or the value of each part is measured, and then the imaging is performed. It is determined whether the seaweed 5 is a non-defective product based on the images obtained by the operation or the measurement results of each part. If the nori 5 is a non-defective product, this is put in the non-defective product stocking section 6 and the defective product If this is the case, put it in the defective stock section 7.

Further, at the time of maintenance, when the seaweed 5 is inserted, it is imaged while transporting it or the value of each part is measured, and then the image obtained by this imaging operation,
Based on the measurement result of each part, it is determined whether the seaweed 5 is a good product, and if the seaweed 5 is a good product, put it in the good product stock part 6. If it is a bad product, the contents of the defect are specifically described. Then, this is put into the defective stock part 7.

The conveying unit 1 includes a plurality of drive pulleys 8, a plurality of driven pulleys 9 corresponding to the respective drive pulleys 8, and belts stretched between the drive pulleys 8 and the driven pulleys 9.
When the seaweed 5 is inserted from the introduction end side, the seaweed 5 is conveyed in the direction of arrow A along the conveyance surface.

Further, the imaging unit 2 detects the vertical position of the roller 11 which rotates by contacting the upper surface of the seaweed 5 being conveyed by the conveying unit 1, and a thickness sensor 12 for measuring the thickness of the seaweed 5,
A rotatable conductivity measuring sensor 15 for measuring the conductivity of the seaweed 5, a lamp 13 for illuminating the seaweed 5 from below, and a line sensor for imaging the seaweed 5 illuminated by the lamp 13 from above. 14 and each of these sensors 12
The outputs of 15 are supplied to the processing unit 3.

The processing unit 3 includes an A / D conversion circuit (analog / digital conversion circuit) 16, an S / P conversion circuit (serial / parallel conversion circuit) 17, a dryness detection circuit 18, a determination circuit 19, and a mode switching switch. If the seaweed 5 is defective, a solenoid on signal is generated and supplied to the switching unit 4. At this time, if the maintenance mode is entered, the details of the defect in the seaweed 5 are specifically displayed.

The A / D conversion circuit 16 includes a successive comparison type A / D converter, etc., and converts an analog signal (thickness detection signal) output from the thickness sensor 12 into a digital signal (thickness data),
When this conversion operation is completed, an interrupt signal is generated and this thickness data is supplied to the determination circuit 19.

In addition, the S / P conversion circuit 17 includes a latch circuit, a Jonson counter, etc., and converts the serial image output by the line sensor 12 into a parallel image (image data),
When this conversion operation is completed, an interrupt signal is generated and this image data is supplied to the determination circuit 19.

Further, the dryness detection circuit 18 is provided with a dryness setter, a comparator, and the like, and the value of the conductivity detection signal output from the conductivity measurement sensor 15 and the value set in the dryness setter. Is compared to detect whether the seaweed 5 is undried, and when the seaweed 5 is undried, an interrupt is applied to the determination circuit 19.

The mode switching switch 20 is for switching the operation mode of the determination circuit 19, and when this is closed, supplies a maintenance operation command to the determination circuit 19,
This is operated in maintenance mode.

The determination circuit 19 includes a control unit (CPU) 21 including a microprocessor and the like, and a ROM (read only memory) 2 in which programs of the CPU 21 and various constant data are stored.
2, a RAM (Random Access Memory) 23 that is a work area of the CPU 21, and a number indicator 24 that displays the number of laver that has been judged to be non-defective and the specific content of defective laver that has been judged to be defective. And the CPU 21, the switching unit 4 and the transport unit 1
It has an interface 25 for connecting with.

If the mode switching switch 20 is opened, the determination circuit 19 operates in the inspection mode and the A / D
The outputs of the conversion circuit 16, the S / P conversion circuit 17, and the dryness detection circuit 18 are processed to determine whether the seaweed 5 is good or bad. If this is a good product, the number of good products displayed on the number display 24 is displayed. The value is incremented, and if the product is defective, a solenoid ON signal is generated and supplied to the switching unit 4.

If the mode switching switch 20 is closed,
This determination circuit 19 operates in the maintenance mode and
The outputs of the A / D conversion circuit 16, the S / P conversion circuit 17, and the dryness detection circuit 18 are processed to determine whether the seaweed 5 is good or bad. After displaying the contents in two-digit numbers (codes), a solenoid ON signal is generated and supplied to the switching unit 4.

The switching unit 4 includes a flapper 26 provided on the rear side of the transport unit 1 and a solenoid 27 that drives the flapper 26. When the solenoid ON signal is not supplied from the processing unit 3, the flapper 26 is provided. Conveyor 1 at the tip of
The seaweed 5 is guided to the non-defective stocking section 6 so that it is below the transport surface, and when the solenoid-on signal is supplied, the solenoid 27 is turned on to drive the flapper 26, and the tip of the flapper 26 is conveyed. The seaweed 5 is led to the defective stock portion 7 by projecting it on the surface.

Next, the operation of this embodiment will be described with reference to the flow charts shown in FIGS.

First, when the power switch of this seaweed inspection device is turned on, the CPU 21 starts operating, initializes each circuit part, turns on the transfer part 1, and then the main flow shown in FIG. 2 (A). A / D conversion circuit 16 at chart step ST1
Also, it checks whether or not the S / P conversion circuit 17 and the dryness detection circuit 18 are interrupted.

Then, if any of these, for example, the A / D conversion circuit 16 interrupts, the CPU 21 jumps to the thickness import routine 30 shown in FIG.
After the thickness data is fetched from the A / D conversion circuit 16 in step ST15 of 30, the value of this thickness data is "0" in step ST16.
If the value is "0", the thickness capturing routine 30 is terminated and the process returns to the main flow chart.

If the value of this thickness data is not "0", CPU21
This step ST16 branches to step ST17, and it is checked here whether the value of the thickness data exceeds a predetermined value (foreign matter detection determination reference value).

If the value of the thickness data does not exceed the foreign matter detection determination value, the CPU 21 determines that there is no foreign matter such as bird feathers or vinyl in the thickness data extraction portion this time, and the steps from ST17 are performed. The flow branches to ST18, where the difference (displacement amount) between the current thickness data value and the previous thickness data value is determined, and this displacement amount is set to a predetermined value (foreign matter detection determination displacement value). Check to see if you are over.

If this displacement amount does not exceed the foreign matter detection determination displacement value, the CPU 21 displays the shell and the
When it is judged that no foreign matter such as sand is mixed, the thickness capturing routine 30 is terminated and the process returns to the main flow chart.

Also, in step ST17, it is determined that bird feathers or foreign matter such as vinyl is mixed in this thickness data extraction part, or in step ST18 shells, foreign matter such as sand is mixed in this extraction part. If it is determined that the CPU21
Branches from these steps ST17 and ST14 to step ST19.

Then, in this step ST19, the CPU 21 R
After concrete writing to AM23, this thickness capture routine
After 30, the process returns to the main flow chart.

In addition, in step ST1 of this main flow chart, if an interrupt is issued from the S / P conversion circuit 17, the CPU21
Jumps to the image capturing routine 31 shown in FIG. 2 (C), and in step ST20 of this routine 31, the S / P conversion circuit 17 is executed.
After the image data is fetched from step S21, it is checked in step ST21 whether or not each bit forming this image data has a value "1" of a predetermined number or more.

And if each of these bits is "1" more than a predetermined number,
The CPU 21 determines that the image of the seaweed 5 is included in the image data this time, and determines from this step ST21 to step ST22.
And the image data is stored in the RAM 23.

Further, in step ST21, if each bit forming the image data is not a predetermined number or more than "1", the CPU 21
The step ST22 is skipped.

After that, the CPU 21 ends the image capturing routine 31 and returns to the main flow chart.

If the dryness detection circuit 18 interrupts at step ST1 of the main flow chart, CP
U21 jumps to the non-drying interrupt routine 32 shown in FIG. 2 (D) to store in RAM23 that the seaweed 5 has not been dried in step ST23 of this routine 32, and then terminates this routine 32. Return to the main flow chart.

When the processing in step ST1 is completed, the CPU21
Checks the value of each data regarding the seaweed 5 in step ST2 to determine whether or not the rear end of this seaweed 5 has passed the sensor unit 2. The rear end of this seaweed 5 is detected by the sensor unit 2
If it has not passed, the process returns from step ST2 to step ST1 and repeats the above-mentioned processing.

If the rear end of this seaweed 5 passes through the sensor unit 2,
CPU21 branches from this step ST2 to step ST3,
Here, the image data is read from the RAM 23, and whether the width and length of the seaweed 5 have reached the specified values, whether the corners of this seaweed 5 are missing, whether there are horizontal cracks and vertical cracks in this seaweed 5. After checking, etc., the contents of this check (including the contents of defects) are stored in the RAM 23.

Then, the CPU 21 switches the mode at step ST4.
Check whether 20 is closed. If it is not closed, it is determined that the inspection mode is currently set, and the process branches from this step ST4 to step ST5.

Then, in this step ST5, the CPU 21 checks whether or not the defective contents are written in the RAM 23, and if this is not written, it branches from this step ST5 to step ST6, and the number of good products stored in the RAM 23 After incrementing the value by "1", this value is displayed on the number display 24, and the inspection operation for the seaweed 5 is completed.

As a result, the seaweed 5 that has been inspected is transported by the transport unit 1 and guided to the non-defective stock unit 6.

If defective contents are written in the RAM 23 in step ST5, the CPU 21 proceeds from step ST5 to step ST5.
Branch to ST7, generate solenoid ON signal here,
After the flapper 26 is projected onto the conveying road surface and the seaweed 5 is guided to the defective product stock portion 7, the inspection operation for the seaweed 5 is completed.

In step ST4, the mode switching switch 2
If 0 is closed, the CPU 21 determines that the maintenance mode is currently set, and branches from this step ST4 to step ST8.

Then, in this step ST8, the CPU 21 checks whether or not the defective content is written in the RAM 23, and if it is not written, the inspection operation for the seaweed 5 is ended.

As a result, the seaweed 5 that has been inspected is transported by the transport unit 1 and guided to the non-defective stock unit 6.

Further, in step ST8, if the defective contents are written in the RAM 23, the CPU 21 branches from this step ST8 to step ST9, and supplies a value (code) corresponding to the defective contents to the number display 24 here. Then, this code is displayed as shown in FIG.

In this case, if the content of the defect is lateral cracks or vertical cracks of the seaweed 5, the position of the seaweed 5, and if the seaweed 5 is chipped, what corner is missing, or if the thickness is poor? Indicates the type of defective thickness with a code.

After that, the CPU 21 proceeds to the step ST7, where a solenoid ON signal is generated and the seaweed 5 is transferred to the defective product stock section 7.
Then, the inspection operation for the seaweed 5 is completed.

Next, the CPU 21 checks at step ST10 whether the mode switching switch 20 is closed. If it is not closed, the CPU 21 determines that the inspection mode is currently set, and branches from this step ST10 to step ST11. Then, the number of non-defective products is displayed on the number display 24.

If the mode switching switch 20 is closed in step ST10, the CPU 21 determines that the maintenance mode is currently set, and branches from step ST10 to step ST12, where the number display 24 is displayed. The code for this seaweed 5 is displayed.

After that, the CPU 21 checks at step ST13 whether or not a new laver 5 has been inserted, and if it is inserted, the process returns from this step ST13 to the step ST1. If this is not inserted, this step ST13 To branch to step ST4.

Then, in this step ST14, the CPU 21 checks whether or not the inspection end switch is pressed, and if this is not pressed, returns from the step ST14 to the step ST10, and if it is pressed, performs all the inspection operations. finish.

As described above, in this embodiment, the number-of-sheets indicator 24 is used as the defect content indicator in the maintenance mode, and the defect content of the seaweed 5 is specifically displayed by the code, so that there is a problem in the inspection result. At that time, the cause can be specifically known. Therefore, when there is a cause on the device side, it can be removed promptly so that the selection efficiency of seaweed is not lowered.

Further, in the above-mentioned embodiment, the invention has been described in the case where there is no monitor, but when there is a monitor, a simple display of the contents of the defect may be displayed on this monitor.

<Effects of the Invention> As described above, according to the present invention, the seaweed inspection device,
When a maintenance mode is set by this mode changeover switch that supplies a maintenance operation command and operates in maintenance mode, the defective state of seaweed obtained by each sensor is coded and displayed together with the number of defective sheets. Since it is equipped with a control unit that is displayed above, it is a seaweed inspection device that can instantly know with what number the seaweed that was determined to be defective was determined to be defective, and the coded inspection result If you replace the code with the code table, you can immediately determine whether the cause of the defect is the seaweed side or the equipment side, and if there is a cause on the equipment side, this can be promptly repaired to improve the laver sorting efficiency. It is possible to prevent it from deteriorating, and code and display the defective state of seaweed, The number also may be simultaneously displayed, can be used as statistical data as the data, it becomes possible to help in the production management and quality control of the seaweed.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the seaweed inspection apparatus according to the present invention, FIGS. 2A to 2D are flow charts showing the operation examples of the embodiment, and FIG. 3 is the same embodiment. It is a schematic diagram which shows the example of a display of. 12 ... Sensor (thickness sensor), 14 ... Sensor (line sensor), 15 ... Sensor (conductivity measurement sensor), 20 ... Mode setting switch (mode switching switch), 21 ... Control unit (CP)
U), 24 ... Display (number display).

Claims (1)

[Scope of utility model registration request] 1. A laver inspection device for determining the quality of laver by taking in the laver data with each sensor and supplying a maintenance operation command to the device to operate in a maintenance mode; A nori seaweed inspection apparatus comprising: a control unit for coding the noble seaweed defect state obtained by each sensor when the maintenance mode is set and displaying the code on the display unit together with the number of defective seaweeds.