JP6097902B2 - High performance raw seaweed cutting device - Google Patents

Description

This invention is intended to obtain a high cutting force by reducing the destruction of cells of the raw nori and providing an angle to the through-rod-shaped hole having a characteristic shape in the fixed plate for obtaining an appropriate crushed laver. A high-performance raw laver cutting device that can secure the raw laver that has been cut evenly with a multi-hole fixed disk-shaped plate of a cutting machine and a bladed rotary knife with a special angle, with little damage to the cells when cutting the laver. About.

For cutting raw seaweed, a rotating knife is pressed against a fixed plate having a number of hole holes, and the raw seaweed passing through the hole hole is cut by the edge of the through hole and the knife. . Accordingly, the back surface of the fixed plate is usually finished with a precise flat surface in order to bring the rotary knife into contact (see Patent Document 1).

When cutting the raw laver accurately with the laver cutter, the number of holes in the perforated plate is maximized so as to be cut uniformly without resistance. %. However, depending on the physical properties (hardness, length, width, etc.) of the raw seaweed, the raw seaweed can be rubbed into the raw seaweed with operations such as cutting the raw seaweed by making the sharpness of the cutter worse. Gives action. In such work, a technique for improving the quality of the finished product by changing the physical properties of the raw nori is also employed.

In the conventional technical literature, foreign substances adhering to the seaweed such as micro-organisms and / or diatoms can be removed, but only the method aimed at softening. Therefore, in these methods, there is a problem that the quality of the raw nori cannot be improved and the homogenization of the raw nori cannot be achieved by imparting a stagnation action to the raw nori as desired and changing the physical properties of the raw nori.

In a perforated plate in which a knife equipped with an extrusion screw that presses raw seaweed against the opening plate side having multiple through holes, a pressure mechanism that controls sliding contact that cuts to a predetermined length, and a rotation mechanism that controls rotation rotates In order to ensure time specifications for cutting into the blade portion of the extruded screw and the round hole of the porous plate, a raw laver cutting machine configured to set the aperture ratio of the round hole of the porous plate has been proposed (See Patent Document 2).

Furthermore, the removal method and apparatus of the fiber etc. in fresh seaweed are mentioned (refer patent document 3). The content is that the knife is loosely slid on the fixed plate with the through-hole, and the fibers are held between the plate and the knife, or the gap between the fixed plate and the knife is adjusted to cut the raw nori reliably. In addition, a configuration is disclosed in which raw laver can be cut but fibers cannot be cut, and fibers and the like are separated with higher accuracy, but curved plate-like passage holes are provided. Some of them aim to avoid cutting of fibers and the like by using this passage hole.

Although the action of loosening the raw nori efficiently occurs due to the pressure contact of the knife with the multi-aperture plate, there is no tearing and crushing action, etc. It is difficult to give and change the physical properties of raw nori. Moreover, since the raw nori extruded from the extrusion hole is not sufficiently imparted with a stagnation action, it is not possible to remove foreign matter adhering to the nori such as micro-organisms and / or diatoms, improving quality, The problem that homogenization cannot be expected occurs (see Patent Document 4).

In addition, the ratio between the number of revolutions of the knife and the number of revolutions of the screw is adjusted, and the cutting length of the raw nori is made fine without being caught by the physical properties of the raw nori, and the soft cut raw nori is only provided. . Therefore, it is not possible to give the stagnation action on the back surface of the perforated plate in accordance with the physical properties of raw nori. Moreover, there is no device for the perforated plate, and the advantages of the perforated plate are not fully utilized.

In the raw seaweed cutting device provided with a knife that is rotated in contact with pressure inside the perforated plate, a spraying device for spraying water on the center of the semicircular upper end of the perforated plate is provided outside the perforated plate. There has been proposed a raw seaweed cutting device that cools a perforated plate that reaches a high temperature and cleans the cut raw seaweed (see Patent Document 5).

The raw laver transport passage is provided with a rotating blade that rotates across the passage, provided on the upstream side of the non-rotatable porous plate for rough cutting, and formed on the downstream side of the non-rotatable porous plate for shredding. There has also been proposed a raw seaweed cutting device that can supply raw seaweed smoothly, cut finely and uniformly, and maintain high cutting ability over a long period of time (see Patent Document 6).

The raw laver shredding method and apparatus include the knife rotation speed and screw rotation ratio adjustment, and the ratio adjustment according to the properties of the raw seaweed leaves, the processing degree of the raw seaweed leaves There has been proposed a method and apparatus for shredding raw seaweed to adjust the quality or improve the quality of the product (see Patent Document 7).

However, there is no raw laver cutting device that cuts cells without destroying the cells. In particular, the multi-hole plate is not in the shape of a blade and has a low cutting effect. It is desirable that the raw seaweed is appropriately cut without breaking the raw nori cells. In addition, in our company, as shown in Utility Model Registration No. 3175323 and Utility Model Registration No. 3182182, we have developed a cell with less destruction of cells, but there is a demand for a fixed plate and a rotating knife that can cut evenly and evenly. ing.

Japanese Utility Model Publication No. 2-145090 JP 2007-275024 A Japanese Patent Laid-Open No. 10-75745 Utility Model Registration No. 3103510 Japanese Utility Model Publication No. 5-38635 Japanese Patent Application Laid-Open No. 7-99943 JP 2001-8669 A

In the raw seaweed cutting device provided with a knife that has been rotated by pressing and sliding on the inside of an open fixed disk type plate having multiple through holes, the semicircular upper end center part of the fixed disk type plate having the multiple through holes opening The fixed disk type plate having the opening that becomes high temperature is cooled, and the cut raw laver is washed directly.

A rotary nice blade that rotates across the passage is provided in the raw laver transport passage, and is provided on the upstream side of the multi-hole fixed disk type plate plate for rough cutting. It is possible to maintain a high cutting ability over a long period of time. The ratio between the rotation speed of the blade-shaped rotary knife and the rotation speed of the screw can be adjusted, the ratio is adjusted according to the physical properties of the raw laver, and the processing degree of this raw laver is adjusted by opening the fixed disk plate with through holes To be done. However, it has not been fully adjusted and has not been put into practical use.

The ratio and shape of the number of holes in the fixed disk plate with multiple holes is appropriate, and it has been devised to cut the raw seaweed uniformly without supply resistance. However, depending on the physical properties of the raw nori, the sharpness of the blade with a bladed rotary knife is deteriorated, so that the raw nori is given a stagnation action, for example, by cutting it. In order to perform such a cutting operation without destroying the raw nori cells without requiring skill, it is necessary to appropriately set the ratio and the shape of the number of holes in the through hole fixing plate. It has been pointed out that there are problems.

In a raw laver cutting device that cuts the raw nori cells without destroying them, break the raw laver cells by giving the fixed disc plate a blade shape in the hole, giving it a cutting effect. In addition, a fixed plate with multiple holes that can produce delicious nori by finely and uniformly cutting raw nori is desirable. Further, it is one means to engrave the blade portion of the penetrating rod-shaped hole into a blade having a high cutting force with an angle of inclination in the rotation direction and an angle of the blade portion. Further, it is desired that the rotary knife cuts with an angle that matches the through hole.

In a raw laver cutting device comprising a multi-hole fixed disk-shaped plate and a bladed rotary knife, in order to engage with the bladed rotary knife and enable optimum cutting, a diameter of 120 to 180 mmφ, a thickness of 12 ˜20 mm special steel or cast disc-shaped plate, the length of the opening is 5 to 15 mm, and the length / width ratio is 1.5 to 5 times, which is a substantially rod shape, total 600 to 1000 pieces So as to form a group of through-rod holes arranged in a quadratic curve continuously on the disk-shaped plate, on a parabola of 20 to 60 ° at an initial angle from the center line of the disk-shaped plate. All of the through-rod-shaped holes arranged are engraved so that each hole edge on the front side in the rotation direction has an angle of 5 to 20 ° to form a blade portion, The edge of the hole forms an obtuse edge with an angle of 80 to 95 ° As the engraved surface having the cutting portion is a curved blade portion with an opening edge portion surface, high raw laver cutting device, characterized in that.

The bladed rotary knife has 4 to 12 blade-shaped blade portions with a length of 60 to 110 mm made of special steel or casting, and the through rod-shaped hole of the multi-hole fixed disk-shaped plate and the The blades of ultra-high steel having a width of 2 to 5 mm and a length of 50 to 100 mm in the rotation direction of each blade-like blade part so that the blade-like blade part has an angle suitable for cutting raw laver by rotational drive. The blade-shaped blade portions are embedded and are shifted from the radial center line by an angle of 10 to 40 °.

In order to ensure that the raw laver pressed by the extrusion screw having the bladed rotary knife having 4 to 12 blade-shaped blades pressed against the multi-hole fixed disk-shaped plate side is cut under effective conditions. In addition, the multi-hole fixed disk-shaped plate has a smoothness within 0.03 mm uneven surface with respect to the blade-like blade portion of the extrusion screw, and by controlling the number of rotations by a variable speed motor, The contact surface between the blade-shaped blade mold surface of the extrusion screw and the open blade portion surface with the curved blade portion of the multi-hole fixed disk-shaped plate is kept within 0.03 mm.

In a multi-hole fixed disk-shaped plate for cutting, having a total length of 600 to 1000 with a length of 5 to 15 mm, and having openings of through-bar holes aligned on a parabola of 20 to 60 °, 5 to 20 ° The inside of the blade portion of the through-rod-shaped hole carved with an inclination of 5 mm is cut with a drill with a diameter of 2 mm or less by an NC milling machine of a high-speed spindle with a small-diameter end mill.

In this invention, since the front and back surfaces of the multi-hole fixed disk-shaped plate are flat finished surfaces, the contact surfaces of the rotary knife with blades and the multi-hole fixed disk-shaped plate become close surfaces, and the rotary knife with blades, etc. The life span of the seaweed can be extended from that of traditional ones, and the cross-section of the seaweed is sharp, fine and not narrowly distributed, making it even more delicious edible seaweed. Also, no ultra-fine material was emitted, there was little loss, and the wastewater was not polluted.

The pressed laver is pressed by a bladed rotary knife on the extrusion screw, which is pressed against the multi-through hole fixed disk-shaped plate carved with an angle of 10 to 30 ° in the rotation direction. In the fixed disk-shaped plate having the opening of the through-rod-shaped hole that is cut to a length of, the spec is determined by cutting by the blade-shaped blade mold part in the extrusion screw and the opening of the rod-shaped hole with the blade part of the fixed disk-shaped plate. In order to ensure, in one side of the substantially rod-like shape that is the opening of the through-rod-like hole of the fixed disk-like plate that can match the structure of the blade-like blade mold part in the extrusion screw by controlling the rotation speed by the variable speed motor A disk-shaped play for fine uniform cutting of raw seaweed with a total of 600-1000 through-holes with a blade portion length of 5-10 mm at an angle of 20-60 ° Is.

When the raw laver is finely cut, the fixed disk-shaped plate having a plurality of through-bar shaped holes used in combination with a bladed rotary knife has a fixed disk-shaped plate retaining portion inside the circle center. The shape of the opening of the through-rod-shaped hole is substantially rod-shaped, and the shape of the through-hole of the through-hole engraved in the shape of the quadratic curve in the circumferential direction from the center is 120 to 180 mmφ, the thickness is 12 It is a special steel of ˜20 mm or a cast disc shape.

Reduce the numerical aperture of the multi-hole fixed disk-shaped plate, reduce the opening ratio, adopt a form that is not proportional to the pressure of the extrusion screw, and give the stagnation action on the back of the fixed disk-shaped plate, or at the same time By making the extrusion pressure excessive as the number of holes below the rate, the stagnation action on the back surface of the fixed disk-shaped plate is given. Knife wear is avoided to improve economy and cut efficiently with this knife. Furthermore, changing the physical properties of the raw nori by using the stagnation action has fully utilized the advantages of the multi-hole fixed disk.

An extrusion screw that presses raw nori on the multi-through hole fixed disk-shaped plate side, and a blade that slides and rotates on the fixed disk-like plate having the multi-through hole that cuts the pressed raw nori into a predetermined length. A rotary knife with a knife, a pressurizing mechanism that controls sliding of the knife, and a rotating mechanism that controls rotation of the bladed rotary knife having a special angle. In order to ensure an obtuse cutting to make the shape of the opening of the through-rod-shaped hole of the fixed disk-shaped plate and the blade portion, the opening ratio of the through-rod-shaped hole of the multi-through hole-shaped fixed disk-shaped plate is set.
The

In the present invention, a substantially rod-like shape having a length of 3 mm to 10 mm in a radial direction is formed at a ratio of 1.5 to 3.0 times the length / width of an opening of a through-rod-like hole of a multi-hole fixed disk-like plate. The surface of the multi-through hole fixed disk-like plate having a through-hole opening carved at an angle of 10 to 30 ° in the rotation direction arranged in a quadratic curve is the contact surface of the bladed rotary knife. As a result, the raw seaweed is cut appropriately, the destruction of the cells of the seaweed is reduced, and there is no waste. In addition, cell destruction was small and it was effective for environmental measures against washing wastewater.

A substantially rod-like shape having a length of 3 to 00 mm and a length / width of a through rod-like hole carved with an angle of 10 to 30 ° in the rotational direction is 1.5 to 3.0 times in a radial direction. As a configuration to set the aperture ratio of the through-rod holes of the multi-through hole fixed disk-shaped plate with the openings of the through-bar holes arranged on the parabola, the bladed rotary knife is made of ultra-high steel in the direction of rotation of each blade. Because it is a raw seaweed cutting device that embeds the blade part and attaches each blade part to the center line at an angle of 20 to 30 °, it is a multi-through hole fixed disk with a through-rod-like hole through-hole opening. The extruded screw pressed against the plate side and the pressed raw seaweed are cut into uniform and fine pieces. Therefore, a delicious seaweed was obtained.

Multi-through hole fixed disk plate with through-bar-shaped holes engraved at an angle in the direction of rotation, use state diagram showing bladed rotary knife, state diagram of bladed rotary knife, fixed disk plate, The figure of the state of a contact surface. A: Plan view B: Cross section (contact surface) Diagram of a fixed disk-like plate with multiple through-hole openings and a fixed disk-like plate with a substantially through-hole shaped hole that has been carved with an angle of inclination in the direction of rotation. Fixed disk-like plate plan view B: Cross section Front view (A), back view (B) and + sectional view (C) of a rotary knife with blades having blades at an angle Detailed view of fixed disk-shaped plate part with through-bar-shaped hole through-hole opening carved at an angle in the rotation direction and blade part of through-bar-shaped hole A: Hole partial view of fixed disk-shaped plate B: State of cutting hole Figure, C: Cross section Diagram of a device that uses the cutting method for the number of approximately through-bar holes engraved with an inclined angle in the direction of rotation Photograph of raw seaweed cut using conventional product and fixed disk plate of this application A: Conventional product B: This product

As shown in FIGS. 1 to 5, this device is a device in which both front and back surfaces of a fixed disk-like plate having a multi-hole opening are finished surfaces. Therefore, as shown in FIG. 2, the bladed rotary knife can be used while being pressed against the surface, and therefore, when uneven wear occurs, the front and back surfaces can be corrected and used.

The embodiment of the present invention will be described with reference to FIGS. 1 to 6. The opening of the plate is made 50 to 80% of the whole disk, and the length / width is 1.5 to 3 times the length. A substantially rod-like shape of 3 mm to 10 mm is arranged in a radial quadratic curve in the radial direction so as to be 50 to 80% of the use area to be a substantially rod-like shape, and the shape is a straight line in the circumferential direction from the center. A straight blade portion was provided in a direction of 20 to 60 ° with respect to the cutting angle of the blade portion, and a circular recessed portion for fixing the bearing was provided in the center portion of the front and back surfaces to constitute a fixing plate. The central part is a bolt hole for fixing the bearing. This is a multi-hole fixed disk-shaped plate having an annular protrusion on the outer peripheral portion on the surface side, and this protrusion is pressure-fixed at the time of fixing.

As shown in FIG. 2, a multi-hole fixed disk-shaped plate used for a raw laver cutting machine for cutting raw laver is made of a special steel 180 mm disk with a thickness of 15 mm, as shown in FIG. Processing was performed with a cutting machine. In addition, the multi-through hole fixed disk plate having a plurality of through-bar-shaped holes used in combination with a bladed rotary knife as shown in FIG. 3 is a special steel disk shape with a diameter of 180 mmφ and a thickness of 15 mm. It has a fastening part of the fixed plate inside the core, and the entire surface of the multi-holed fixed disk-shaped plate has 75% of the opening surface of the plate, and the length / width is 2. About 714 rod-like shapes with a length of 4 times and a length of 6 mm are arranged, and there are about 75% of the opening surface, and the shape is a substantially rectangular shape. The angles were arranged in a radial direction of 30 °. The shape of the blade was carved with an inclination of 10 ° in the rotational direction.

The rotary knife is made of eight 75 mm long blades made of cast iron, and each through-hole opening and blade-shaped portion of the multi-through hole fixed disk plate is rotated at an angle suitable for cutting nori. In order to obtain a state, a blade portion of ultra-high steel having a width of 4 mm and a length of 75 mm was embedded in the rotation direction of each blade, and each blade portion was attached while being shifted by 15 ° from the center line.

In order to ensure that the pressed raw seaweed is cut under effective conditions by an extrusion screw having eight bladed rotary knives that press the raw seaweed against the multi-hole fixed disk-shaped plate side, It is a multi-through hole fixed disk-like plate with a smoothness within 0.03 mm of the uneven surface of the blade-shaped blade of the extrusion screw. In the extrusion screw by controlling the number of rotations by a variable speed motor, the blade The contact surface between the blade mold surface of the rotary knife and the open blade surface with the curved blade of the fixed plate was kept within 0.03 mm.

In the multi-hole fixed disk-shaped plate for cutting, the inside of the blade portion of the through-rod-shaped hole carved with an inclination of 10 ° is set by an NC milling machine for tilting a high-speed spindle with a small-diameter end mill. It was cut with a 5 mm diameter drill.

The pressed raw seaweed is pressed against the blade blade mold part of the extruded screw by means of a rotary knife with blades having eight knives in the extruded screw, which presses the raw seaweed against the multi-hole fixed disk-shaped plate side. In order to ensure effective conditions for cutting with an open blade with a curved blade in a multi-through hole fixed disk plate with a smoothness within 0.03 mm uneven surface, the rotational speed of the variable speed motor The contact surface between the blade blade die portion of the screw and the open blade portion with the curved blade portion of the multi-hole fixed disk plate, which is the structure of the blade blade die portion of the extruded screw by control, is within 0.05 mm. .

As shown in FIG. 1, the rotating knife in the extrusion screw that presses the raw nori to the multi-through hole fixed disk-like plate side, and the opening of the through rod-like hole that cuts the pressed raw nori into a predetermined length. In order to ensure the appropriate specifications for cutting the blade portion of the extrusion screw and the opening of the through-rod-like hole of the multi-through hole fixed disk plate, Raw nori made from a configuration in which the mold shape and the number of rotations are controlled by a variable speed motor, and a substantially rectangular shape of the through-hole opening of the multi-through hole-shaped fixed disk plate and an opening ratio is set to about 75%. It was a multi-hole fixed disk-shaped plate of a cutting machine.

When cutting the raw seaweed, in the multi-hole fixed disk-shaped plate fixing plate, both the front and back surfaces are made the same finished surface, and as a result of providing bearing mounting portions at the center portions of the front and back surfaces, respectively, FIG. The raw seaweed was cut as shown in Fig. 5 to obtain a finely and uniformly crushed raw seaweed. Also, the cleaning liquid smelled and did not become colored. When dried nori was produced after washing, the nori of the product nori and the taste were obtained. In addition, the cut surface was uniform and there was little destruction of cells. Further, the obtained dried nori product was also good in taste, and there was little color or smell of drainage.

The multi-hole fixed disk-shaped plate fixing plate used for the raw seaweed cutting machine for cutting raw seaweed was processed by a cutting machine using a 180 mm disk made of special steel with a thickness of 15 mm. A multi-through hole fixed disk-shaped plate fixing plate having a plurality of through-bar holes used in combination with a bladed rotary knife as shown in FIG. 2 is a special steel disk shape with a diameter of 180 mmφ and a thickness of 15 mm. It has a fixed plate retaining part inside, and around the entire disk of the multi-hole fixed disk-shaped plate fixed plate, the opening surface of the plate is 65% of the entire disk, and the length / width is 2 A substantially rod-like shape having a length of 0.0 mm and a length of 8 mm is arranged in a radial quadratic curve with 650 through holes arranged to have an opening surface of about 65%, and the shape thereof is a substantially rectangular shape. In this shape, the shape is formed in the circumferential direction from the center part at 28 ° from the center line. It was made the radial shape which arranged the angle in the direction of 30 degrees with respect to the cutting blade with the said shape. The shape of the blade was carved with an inclination of 10 ° in the rotational direction.

A through-rod-like hole carved with an inclination of 12 ° in a disc-shaped plate for cutting, with a total of 650 pieces of 8 mm in length and openings in a through-rod-like hole aligned on a 25 ° parabola The inside of the blade part was cut with a diameter drill of 2 mm or less by a NC table milling machine for high-speed spindle with a small-diameter end mill.

An extrusion screw with a rotary knife that presses raw nori to the multi-through hole-shaped fixed disk-shaped plate side, and a fixed plate having the multi-through hole that cuts the pressed raw nori into a predetermined length. In order to ensure the specifications for cutting the blade part and the through-rod-like hole through-hole of the multi-through hole-shaped fixed disk plate, the configuration of the extrusion screw blade shape and the number of rotations are controlled by a variable speed motor, and This was a multi-hole fixed disk-shaped plate of a raw laver cutting machine made of a configuration in which the substantially rectangular shape of the through-rod-shaped hole of the fixed disk-shaped plate and the opening ratio were set to about 65%.

When cutting raw seaweed, the raw seaweed was cut in the multi-hole fixed disk-like plate to obtain uniformly crushed raw seaweed. Also, the cleaning liquid smelled and did not become colored. When dried nori was produced after washing, nori such as the color and taste of the product nori was obtained. In particular, as shown in FIG. 4, the cut surface was uniform, and cell destruction was small. Further, the obtained dried nori product was also good in taste, and there was little color or smell of drainage. On the other hand, when an ordinary disc-shaped plate for cutting was used, the crushed pieces were not uniform as shown in FIG. 6, and the ultrafine pieces were discharged into the cleaning liquid, resulting in contamination of the waste water. However, this was not the case with the present application.

DESCRIPTION OF SYMBOLS 1 Multi-through hole fixed disk shaped plate 2 Through rod shaped hole 3 Rod shaped shape 4 Trapezoidal shape 5 Bearing 6 Secondary curvilinear arrangement 7 Bladed rotary knife 8 Blade shape part 9 Disc shaped plate 10 Variable speed motor 11 Raw material inlet 12 Rotation Shaft 13 Inclined part 14 Cutting blade 15 Inclined NC rotary table

Claims (3)

In a raw laver cutting device comprising a multi-hole fixed disk-shaped plate and a bladed rotary knife, in order to engage with the bladed rotary knife and enable optimum cutting, a diameter of 120 to 180 mmφ, a thickness of 12 ˜20 mm special steel or cast disc-shaped plate, the length of the opening is 5 to 15 mm, and the length / width ratio is 1.5 to 5 times, which is a substantially rod shape, total 600 to 1000 pieces So as to form a group of through-rod holes arranged in a quadratic curve continuously on the disk-shaped plate, on a parabola of 20 to 60 ° at an initial angle from the center line of the disk-shaped plate. All of the through-rod-shaped holes arranged are engraved so that each hole edge on the front side in the rotation direction has an angle of 5 to 20 ° to form a blade portion, The edge of the hole forms an obtuse edge with an angle of 80 to 95 ° As the engraved surface having the cutting portion is a curved blade portion with an opening edge portion surface, high raw laver cutting device, characterized in that. The bladed rotary knife has 4 to 12 blade-shaped blade portions with a length of 60 to 110 mm made of special steel or casting, and the through rod-shaped hole of the multi-hole fixed disk-shaped plate and the The blades of ultra-high steel having a width of 2 to 5 mm and a length of 50 to 100 mm in the rotation direction of each blade-like blade part so that the blade-like blade part has an angle suitable for cutting raw laver by rotational drive. 2. The high-performance raw laver cutting apparatus according to claim 1, wherein each blade-like blade portion is embedded and attached to be shifted by an angle of 10 to 40 ° from a center line in the radial direction. In order to ensure that the raw laver pressed by the extrusion screw having the bladed rotary knife having 4 to 12 blade-shaped blades pressed against the multi-hole fixed disk-shaped plate side is cut under effective conditions. In addition, the multi-hole fixed disk-shaped plate has a smoothness within 0.03 mm uneven surface with respect to the blade-like blade portion of the extrusion screw, and by controlling the number of rotations by a variable speed motor, The contact surface between the blade-shaped blade mold surface of the extruded screw and the open blade portion surface with the curved blade portion of the multi-hole fixed disk-shaped plate is kept within 0.03 mm. The high-performance raw seaweed cutting device according to claim 1 or 2.