JPS5818059B2 - Quality determination device for seaweed, etc. - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for determining the quality of seaweed and the like.

Conventionally, the quality inspection of seaweed (for holes, cracks, etc.) has been carried out by humans visually inspecting the seaweed as it is transported on a transport device, which has the potential to cause oversights and to limit the speed of recognition.
Accurate and high-speed classification is possible.Therefore, the present invention makes it possible to perform accurate and high-speed classification by determining the quality of seaweed, etc. using a determining means using compressed air.

According to this invention, the quality of the seaweed is determined by blowing a strip of compressed air on the surface of the seaweed to determine whether or not there are cracks or holes in the seaweed. In addition to detecting holes on the top, it is also possible to detect
! It is now possible to accurately detect small cracks that were previously difficult to detect.

An embodiment of the present invention having the above features will be described in detail with reference to the accompanying drawings.

The figure shows a nori quality determination device.

1 to 4, reference numeral 1 denotes a seaweed transfer table having a compressed air passageway 1' to be described later, and on the transfer table 1 are rollers 2..., 2' for transferring the seaweed. The rollers 2, 2', etc. are rotated in the direction of the arrow by a drive device (not shown), and the combination of these rollers 2, 2', etc. constitutes a transfer device.

N is seaweed, and the rollers 2..., 2', of the transfer device
...It is transferred forward while being crimped between the two.

3 is a compressed air blowing device, which is connected to the passage 1' of the transfer device.
The blowing port 3' is in the form of an elongated slit, and is adapted to blow a strip of compressed air A' perpendicularly to the surface of the seaweed.

The shape of the wiping opening 3' is not limited to the shape of an elongated slit, but may be a shape in which a plurality of small holes are arranged in a row; Good.

Reference numeral 10 is, for example, a solenoid valve, which controls sending out and stopping compressed air A from a compressed air generator (not shown).

4 is a sensor that detects the belt-shaped compressed air A' through the passage 1', and normally detects the compressed air A' using a support shaft 41 as a fulcrum.
′ is not blown), it is balanced horizontally.

Reference numeral 5 denotes a detector such as a proximity switch, photoelectric switch, or microswitch, which detects when the sensor detects the compressed air A' and moves in the direction of the arrow. This constitutes a compressed air detection device.

Reference numeral 6 denotes a seaweed detector provided before the compressed air detection device and the wiping device, and serves as an operation timing signal generator for the detection device and the wiping device.

7 is a sorting device installed after the compressed air blowing device and the detection device ÷ This sorting device is based on the detection signal of the compressed air detection device 9) The quality of the seaweed N, such as cracks and Items with holes are selected as defective items and sent to the corresponding defective item transfer conveyor 81.

Therefore, according to the quality determination device of the present invention, when the seaweed being transferred on the transfer device comes onto the compressed air blowing device 3, the surface is sprayed with a belt-shaped compressed air A'. If the seaweed does not have any cracks or holes on its entire surface, the compressed air A' will not reach the detection device, so the subsequent sorting device carries out an operation to transfer the seaweed to the conveyor 82 of good quality.

On the other hand, there are cracks 11' and holes 1 somewhere on the surface of the seaweed.
1, compressed air flows through the cracks 11' and holes 11.
As the compressed air passes through the passage 1' and reaches the sensor 4, the sensor 4 loses its balance and moves downward about the fulcrum 4'.

Therefore, this condition is detected by the detector 5, and based on this signal, the seaweed is determined to be a defective product and sent to a sorting device, and the seaweed is transferred to a conveyor 8 for transporting the defective product. be.

FIG. 5 shows an example of a sorting control circuit, which sends the presence or absence of a signal from a detector to a discrimination circuit to discriminate between good and defective products.
The output signal drives the sorting device 7 to determine the quality.

Note that the present invention is not limited to the above-mentioned embodiments, and for example, it is possible to provide a detection device with a plurality of detectors, detect the amount of movement of the detector, and determine the grade of seaweed. It is also possible to do so.

As described above, according to the present invention, compressed air is used to detect cracks and holes in seaweed, etc., and the detection is performed more accurately and at a higher speed than conventional visual inspection by humans. This has the effect that automation of the task of determining the quality of seaweed can be achieved with a simple device.

Brief Explanation of Drawing 1 The drawings show one embodiment of the present invention, in which Fig. 1 is a front partial cross-sectional view, Fig. 2 is a plan view with the upper roller removed, and Fig. 3 is a diagram showing an embodiment of the present invention. A line sectional view, and FIG. 4 is a perspective view with the upper roller removed.

FIG. 5 is a control circuit block diagram.

1... Transfer table, 3... Compressed air blowing device, 4... Compressed air detection device, N...
··seaweed.

Claims (1)

[Claims] 1. It has a device that blows compressed air in a band shape on the surface of seaweed, etc., and a compressed air detection device installed opposite to the device that blows the compressed air, and detects the seaweed, etc. based on the detection signal of the compressed air detection device. A quality determination device for seaweed, etc., characterized by determining the quality of seaweed, etc.