JPH0119872B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field of the Invention) The present invention relates to an apparatus for sorting dried seaweed contaminated with foreign matter such as vinyl or plastic waste, feathers, cockroaches, and the like.

(Background of the invention) Dried seaweed is produced by washing raw algae collected in the ocean, mixing it with water to make a mixture of desired concentration, and feeding the mixture to a dry seaweed manufacturing machine. However, the dried seaweed produced in this way is contaminated with various foreign substances, such as vinyl and plastic debris floating in the ocean, feathers, dagger filters, and insects such as cockroaches and spiders that get mixed in during the manufacturing process. There may be cases where Conventionally, there has been no effective means for automatically detecting such foreign matter mixed into dried seaweed, and thus such foreign matter-contaminated dry seaweed has been sorted out and removed by visual inspection or manual work.
However, such work was extremely troublesome and did not improve efficiency.

(Purpose and Overview) This type of foreign matter dried in the drying process of a dried seaweed production machine is generally much harder than dried seaweed, as can be seen in shell pieces, for example. Therefore, if such minute foreign matter is mixed into dried seaweed, even if it is difficult to detect visually, it will be detected by tactile means.
This can be detected as an abnormality in the thickness of the dried seaweed. The present invention has been made in view of this point, and utilizes the above-mentioned general characteristics of this type of foreign matter to provide an apparatus that can easily detect and sort out dried seaweed contaminated with foreign matter. The purpose is to To this end, the present invention provides a roller that rotates in contact with the dry seaweed in the dry seaweed conveyance path, and disposes the roller so as to be freely displaceable in a direction intersecting the direction of conveyance of the dry seaweed. This system is equipped with a displacement detector, and a sorter for sorting dried seaweed contaminated with foreign matter, which is driven by a detection signal from the displacement detector. With this configuration, when the roller comes into contact with a foreign object mixed in the dry seaweed and moves slightly due to being pushed up slightly, this is detected by the displacement detector, and the detection signal drives the sorting machine. The dried seaweed contaminated with foreign matter is selected and removed.

(Example) Next, an example of the present invention will be described with reference to the drawings.

FIG. 1 shows dried seaweed 1 manufactured by a well-known dry seaweed manufacturing machine (not shown), and the dried seaweed 1 contains foreign matter 2. Such foreign objects 2 include vinyl, plastic debris floating in the ocean,
There are feathers, tobacco filters, and insects such as cockroaches and spiders mixed in during the dried seaweed manufacturing process, but such foreign substances 2 are often considerably harder and thicker than the dried seaweed 1.

2 and 3 are a side view and a front view of the sorting device according to the present invention, and 3 and 4 are dried seaweed 1
It is a roller disposed on the conveyance path 5 of the dried seaweed 1.
The dry seaweed 1 is conveyed in the direction of arrow A by contacting the top and bottom surfaces of the dry seaweed 1 and rotating. 6 is a receiving plate. Note that the conveyance path 5 may be a known means for conveying dried seaweed, such as a belt conveyor. Lower roller 4 bearings 7,7
is fixedly installed, but the bearings 8, 8 of the upper roller 3 are supported by springs 9, 9 and are freely displaceable in the vertical direction, that is, in the direction intersecting the above-mentioned conveying direction A. It is brought into elastic contact with the roller 4 side by the spring force of 9, 9. Reference numeral 10 denotes a drive shaft for the roller 4, which is rotated by a motor (not shown), and as the roller 4 rotates, the roller 3 also rotates. 11, 11 are conveyance rollers.

12 is the roller 3 consisting of a limit switch.
The displacement detector is disposed above the roller 3, and its lever 12a lightly contacts the roller 3. Reference numeral 13 denotes a sorting machine disposed in front of the conveyance path 5, which includes a rotary plate 1 pivoted on a pin 14.
5 and a solenoid 16 connected to the rotating plate 15.
When the roller 3 rises and the lever 12a is turned on, the solenoid 16
is activated, the rotary plate 15 rotates counterclockwise, and the dried seaweed 1 sent by the rollers 11, 11 is guided by the rotary plate 15 and carried out downward (in the direction of arrow B). 17 is a control circuit for the solenoid 15; Note that instead of the sorting machine 13 consisting of the rotary plate 15, solenoid 16, etc., a well-known sorting machine used in an undried seaweed sorting device, a perforated seaweed sorting device, etc. may be used. 13 is not limited to that of this embodiment.

This device has the above-mentioned configuration, and its operation will be explained next.

Dried seaweed 1 manufactured by a dry seaweed manufacturing machine is conveyed through a conveyance path 5, but normal dried seaweed 1 that does not contain foreign matter 2 is transported by rollers 3 and 4 and rollers 11 and 11.
It is immediately conveyed as it is in the direction of arrow A. When the dried seaweed 1 contains foreign matter 2, the roller 3 comes into contact with the foreign matter 2 and is slightly displaced upward.
Therefore, the displacement detector 12 of the roller 3 is turned on, the solenoid 16 is activated, the rotary plate 15 is rotated, and the dried seaweed 1 is carried out and removed in the direction of arrow B.
In this way, according to the present device, defective dried seaweed 1 containing foreign matter 2 can be easily detected and removed.

The present invention can be modified in various ways; for example, the positions of both rollers 3 and 4 may be changed, with roller 3 being placed downward and roller 4 being placed upward;
A roller equipped with an electrode for detecting undried seaweed as described in Publication No. 35672 is installed,
Detection of dried seaweed contaminated with foreign matter and detection of undried seaweed may be performed at the same time.

(Other Embodiments) FIG. 4 shows another embodiment of the present invention, in which 21 is a rotating member pivotally supported by a pin 22,
Its leading end is in contact with the roller, and its rear end is in contact with the lever 12a of the displacement detector 12. 23
is the bullet holding spring. By interposing the rotating member 21 between the roller 3 and the displacement detector 12 in this way, the detection sensitivity of the displacement detector 12 can be increased, and the lengths l1 and l2 from the pin 22 can be changed. This allows the detection sensitivity to be adjusted.

(Effects of the Invention) As explained above, the detection device for dried seaweed contaminated with foreign matter according to the present invention includes a roller 3 that rotates in contact with the dry seaweed 1 in the conveyance path 5 of the dry seaweed 1, and The roller 3 is disposed so as to be freely displaceable in a direction intersecting the transport direction of the dried seaweed 1, and a displacement detector 12 of the roller 3 is disposed, and the foreign matter-containing dried seaweed 1 is driven by a detection signal of the displacement detector 12. Since it is equipped with a sorting machine 13, foreign substances such as vinyl and plastic waste, insects, and cigarette filters are removed.
The dried seaweed 1 mixed with can be easily detected while being quickly conveyed, and can be selectively removed. In particular, it is possible to easily detect foreign substances that are difficult to visually detect, such as minute pieces of shells mixed inside dried seaweed.

[Brief explanation of drawings]

The figure shows an embodiment of the present invention.
FIG. 2 is a front view, FIG. 3 is a perspective view of dried seaweed contaminated with foreign matter, and FIG. 4 is a side view of another embodiment. 1... Dried seaweed, 2... Foreign matter, 3... Roller, 5... Conveyance path, 12... Displacement detector, 13... Sorting machine.

Claims (1)

[Claims] 1 A roller that rotates in contact with the dried seaweed is disposed on the conveyance path of the dried seaweed, and the roller is disposed so as to be freely displaceable in a direction intersecting the conveyance direction of the dried seaweed, and a displacement detector of the roller is provided. 1. A device for sorting dried seaweed contaminated with foreign matter, characterized in that a sorting machine for sorting dry seaweed contaminated with foreign matter is provided and is driven by a detection signal from the displacement detector.