JPS6225420B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an ice crusher for frozen feed for fish culture.

Frozen feed is food fish such as sardines and saury that is frozen in a box.

The frozen feed is then transported from the frozen warehouse to the fishing grounds in refrigerated trucks, where it is thawed and cut into cutters, twigs, etc.
It is broken up into pieces using a mincing machine and administered to fish farms.

The above thawing methods include gradually thawing inside a refrigerated car, leaving it in a processing plant and thawing it,
Methods such as thawing the fish by immersing them in running water or seawater are used, but this method takes a long time to thaw, and during that time there is a risk of bacteria breeding and causing disease in the farmed fish. . Also, when thawing, the water in the feed fish body flows out as fish juice (drip), and this fish juice contains about 10 to 10% of the nutrients in the feed fish.
Since it contains 20% of the total nutrients, it means that a lot of nutrients are wasted, and the fat in the fish juice floats onto the sea surface, becoming a source of ocean pollution.

As a means to solve this problem, methods have been considered to crush the frozen food into pieces without waiting for thawing, and then administer the powder as is, or use a chopper or mincer to make it even finer. Currently, there is no ice crusher that can efficiently and safely crush frozen fish.

For example, Patent No. 75479 discloses that a pair of horizontal rotors with polygonal cross sections are arranged in parallel at appropriate intervals,
An ice crusher is shown in which driving means is provided to rotate each rotor in conjunction so that the opposing sides move downward, a plurality of cutters are fixed to the outside of each rotor, and a fixed cutter is provided below between each rotor. ing. However, since this known ice crusher is intended to finely crush ice cubes made only of water, it is not suitable for crushing tough items such as frozen food that are frozen with entangled fish. It cannot be done.

For this reason, there are currently examples of ice crushers that are equipped with a plurality of rollers with a round cross section and serrated claws on the outer periphery, such as the well-known scrap crusher; Similar to the ice crusher described above, if it uses only ice, it has an ice crushing effect, but in the case of frozen bait, the fish is the core because it is made from fish frozen together with water. Therefore, in the case of round rollers, the frozen bait is only pinched and the surface of the bait is scratched by the nails, so the center part remains intact and passes between the rollers while remaining connected, making it impossible to completely crush the bait. However, although such feed that cannot be completely crushed can be used for yellowtail, it is not suitable as feed for sea bream or tiger puffer fish. In order to prevent this situation, if the gap between the rollers is narrower than the thickness of the frozen feed and the compressive force is used to crush the feed, the feed must be forced to pass between the narrow rollers, which requires a large amount of power, and the rollers If the gap is made too narrow, the food will not be able to enter, so there is a limit.

However, although boxes of frozen bait have almost the same dimensions in plan, they have different depths, so the thickness of the frozen bait taken out from the box varies. For this reason, in the case of round rollers, there are problems such as the need to constantly adjust the roller spacing to a spacing suitable for the thickness of the frozen feed.

In addition, the method of pulverizing the frozen food through a mincer, rolling it into pellets, and administering the pellets has recently been recommended as it avoids waste of feed and prevents seawater contamination. In the ice crusher, the crushed feed is too large, and if it is fed directly to the mincing machine, the mincing machine will become clogged and a large amount of power will be consumed.

The object of this invention is to solve the above-mentioned problem of conventional crushing of frozen feed, and to provide an ice crusher that can crush frozen feed finely and efficiently so that it can be fed directly to a mincing machine. It is.

That is, in the present invention, a pair of horizontal rotors having polygonal cross sections are arranged in parallel at appropriate intervals, and a driving means is provided for interlockingly rotating each rotor so that the opposite side moves downward. An improved ice crusher has fixed cutters and fixed cutters are provided below between each rotor, so that the ridgeline of one rotor faces the surface between the ridgelines of the other rotor, and the edge of each cutter of this rotor is The lower fixed blade of each rotor is perpendicular to the axis of the rotor, and within the rotation range of each blade of the rotor, A large number of fixed blades located between the blades are arranged in parallel so that their blades face upward, and furthermore, a fixed blade parallel to the rotor having blades on the upper side is located below the middle of both rotors.

Since the ice crusher of the present invention has the above-described configuration, when frozen bait is introduced between the rotors from above the parallel rotors, the bait is crushed by the rotor and the cutter protruding from the outer periphery of both rotors. At this time, in the case of the present invention, the rotors are polygonal, and the ridges of one rotor are rotated in conjunction with each other so that they face the surface between the ridgelines of the other rotor.
The frozen bait held between the two rotors is bent into a zigzag shape and cut by a number of blades that rotate together with the rotors, and is further finely pulverized by a fixed blade below and discharged downward.

Embodiments of the present invention will be described below based on the accompanying drawings.

In Figures 1 and 2, 1 is a box-shaped main body;
There is an input port 2 at the top end and an output port 3 at the front bottom end.

A pair of rotors 4 are arranged in parallel within the main body, and are hexagonal in the illustrated example. Further, in the illustrated example, the surface portion b between the ridge lines a is flat in the rotor 4, but the surface portion b may be recessed in an arc shape.

Each rotor 4 has a shaft 5 at both ends rotatably supported by bearings provided on both sides of the main body 1.

Reference numeral 6 in FIG. 1 is a drive device composed of a motor, a speed reducer, etc., which drives the rotor 4 using a transmission chain. The rotor 4 is interlocked so that the ridge line a faces the surface b of the other rotor 4.

Reference numeral 7 denotes a blade fixed to the outside of each rotor 4.
This cutter 7 has a flat cross section and is provided with a chevron-shaped blade 8 on the rotating side. When viewed from the side, the blades 7, which are welded by fitting them into the grooves, are arranged alternately.
The cutting tools 7 are configured to protrude in all directions as shown in the figure, and the front end of each cutter 7 is made to protrude more than the rotor 4.

Further, as shown in FIG. 3, the blades 7 are arranged so that the ends of the blades 7 that project from one rotor 4 fit between the ends of the blades 7 that project from the other rotor 4. Further, the side shape of each blade 7 is tapered from the side where the blade 8 is not present, that is, from the middle part of the back surface, with the tip being a slope.

11 is a fixed blade, and this blade 11 is attached to both rotors 4.
It is parallel to the rotor 4 at the lower part between the rotors 4 and its both ends are fixed to both side walls of the main body 1, and the chevron-shaped blade 12 at the upper edge is connected to the blade 7 provided on both rotors 4 as shown in FIG. Move it as far upward as possible without touching the imaginary arc drawn by the tip.

Reference numeral 14 denotes a large number of fixed blades extending in a direction perpendicular to the rotor 4. This cutter 14 is arranged so that the chevron-shaped blade 15 faces upward as shown in FIG. 2, and is inserted between the cutters 7 fixed to each rotor 4. Furthermore, although each of the fixed blades 14 described above is integrally fixed to the fixed blade 11 in the illustrated example, the fixed blade 11 may be lengthened back and forth and fixed to the main body 1.

In the above configuration, when each rotor 4 is rotated in the direction of the arrow and the frozen feed 16 is fed from the input port 2 as shown in FIG. 1, the lower end of the feed 16 is pulled downward as shown by the arrow in FIG. Figures 6 and 7
It is bent to the right as shown by the arrow in the figure, and then in Figure 8,
It is bent to the left as shown in Figure 9.

In addition, in a plan view, bending force is applied to the frozen bait 16 as shown by the chain line in FIG. 3 due to the action of the tips of the blades 7 of both rotors 4.

At this time, the feed 16 is in a frozen state and is not flexible, so when the bending force is applied as described above, cracks occur in the feed 16 in the vertical and horizontal directions. As soon as cracks are generated in the frozen bait 16, each blade 7 cuts into the bait, cuts it into pieces, and scrapes it downward while crushing it, so that even the strongly bonded bait is completely broken down.

Further, below each rotor 4, there is a fixed blade 11 parallel to the axis of the rotor 4, and a fixed blade 11 parallel to the axis of the rotor 4.
There are a large number of fixed blades 14 perpendicular to the blade 1, and each of these blades 11, 14 has its blades 12, 15 facing upward.

Therefore, the bait that has been crushed into pieces by the cutter 7 rotating together with the rotor and dropped downward is further chopped vertically and horizontally by the blades 12 and 15 of the fixed cutters 11 and 14, as described above.

Moreover, as is clear from FIG. 2, the fixed cutter 14 is within the rotation range of the cutter 7 of the rotor 4. For example, if the pitch of the fixed cutter 14 is 25 mm and the thickness of the fixed cutter 14 is 9.5 mm, then The gap is
It becomes 15.5mm. The blade 7 fixed to the rotor 4 fits between this 15.5mm, and the thickness of this blade 7 is also 9.5mm.
Therefore, when the cutter 7 is inserted between the cutlers 14, the gap is only 3 mm.

Therefore, the feed crushed by the blade 7 of the rotor 4 is further finely crushed by the fixed blades 11 and 14 and passes through a gap of only 3 mm, so that it is discharged from the discharge port 3 in extremely fine pieces.

The ice crusher of the present invention has the following effects due to the above-described structure and operation. That is, the frozen feed put between the rotors of the ice crusher of this invention is crushed by the blades protruding from the outer periphery of both rotors and the rotor. Instead, the ridges of one rotor rotate in conjunction with each other so that they face the surface between the ridges of the other rotor, so the frozen bait held between the two rotors is bent in a zigzag pattern, resulting in countless cracks. In addition, since the blades fixed to each rotor are constructed so that their ends protrude between the ends of the blades that protrude from the opposing rotors, they do not crack and become brittle as described above. The frozen feed is cut and crushed by these multiple blades that rotate together with the rotor. Furthermore, below the rotor, there are a number of fixed blades with the blades facing upward in a direction perpendicular to the axis of the rotor, and each of these fixed blades fits between the blades of the rotor rotating downward. Because of this, the feed that has been cut and crushed by the blades of the rotor is further finely crushed by the fixed blades.
When it passes through the narrow gap between the blades, it comes out in separate pieces.

Furthermore, a fixed blade is placed below between both rotors in parallel with the rotor, and because the blade faces upward, the bait passing between the rotors is further divided into left and right by this fixed blade. Finely crushed. Therefore, it has the unique effect that even tough frozen feed that cannot be crushed with conventional ice crushers can be cut and crushed very efficiently and very finely.

The crushed feed finely crushed by the ice crusher of this invention is thrown into a mincing machine (not shown), but since the feed is finely crushed together with the bones, it is easily ground into minced meat with a small amount of power, and then The granulation process results in an excellent pellet-shaped aquaculture feed.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal side view showing an embodiment of the present invention, Fig. 2 is a partially cutaway longitudinal front view of the same main part, Fig. 3 is a partially cutaway plan view of the main part, and Fig. 4 is a rotor. FIGS. 5 to 9 are enlarged side views illustrating the function of the rotor. 4... Rotor, 7... Blade, 11, 14... Fixed knife, 8, 12, 15... Blade, 16... Frozen bait, a... Ridgeline, b... Surface portion.

Claims (1)

[Claims] 1 A pair of horizontal rotors with polygonal cross sections are arranged in parallel at appropriate intervals, and a drive means is provided to rotate each rotor in conjunction so that the opposing sides move downward, and a plurality of blades are fixed to the outside of each rotor. In an ice crusher with fixed cutters installed below between each rotor, the ridgeline of one rotor faces the surface between the ridgelines of the other rotor, and the end of each cutter of this rotor is separated from the opposing rotor. The fixed blades below each rotor are configured to protrude between the ends of the protruding blades, and the fixed blades below each rotor are orthogonal to the axis of the rotor, and within the rotation range of each blade of the rotor, a large number of fixed blades are located between the blades. This frozen feed ice crusher has fixed blades arranged in parallel so that the blades face upward, and a fixed blade parallel to the rotor that has blades on the upper side below the middle of both rotors.