JP2009278872A - Device for cutting frozen fish - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for cutting frozen fish which can simply cut a frozen fish while being frozen into fillets with a rotary blade. <P>SOLUTION: The circumferential edge of the rotary blade 20 has knife-like cutting blade portions 21 and notch portions 22, alternately. It is preferable that the circumferential edge length ratio of the cutting blade portions 21 to the notch portions 22 is 0.4 to 0.6. The rotary blade 20 having the notch portions 22 formed therein can more bite into the frozen fish and reduce frictional resistance on frozen fish-cutting than a knife-like blade whose circumferential edge is like a continuous knife. The rotary blade 20 is attached to a known frozen fish-cutting device to cut the frozen fish into fillets. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a cutting device that fills frozen fish.

  Conventionally, for example, Japanese Patent Laid-Open No. 5-49390 discloses that a band saw is used in order to make frozen fish into fillets. Japanese Patent Application Laid-Open No. 11-266781 discloses that frozen fish is cut after being half-thawed.

JP-A-5-49390 JP-A-11-266781

When using the conventional band saw, the blade saw structure of the band saw is provided with a set so that the teeth and the cut object can be continuously cut without being in close contact with each other. However, this clam has a problem that a lot of frozen fish chips come out and is difficult to process.
Further, the technique of cutting frozen fish after being half-thawed has a problem that it costs energy because it is half-thawed once frozen and heat-treated and then frozen again.
Also, knives, equipment manufacturers, and users thought that frozen fish could not be cut with a rotating blade and believed that a band saw was the preferred cutting tool. However, this band saw has the problem of chips as described above, and it has been believed that a rotary blade is impossible at all in consideration of the strength and rigidity of the apparatus.
Therefore, as a result of pursuing what conditions should be satisfied by the cutting device that can cut the fillet simply and with the rotary blade, the inventor manufactured the rotary blade that can cut with the frozen fish. It is to provide.

The fillet cutting device according to claim 1 can cut frozen fish by cutting a frozen fish with a rotary blade, and the rotary blade includes a knife-like cutting part.
Further, the rotary blade used in the fillet cutting device according to claim 2 has the cutting blade portion and the notch portion alternately formed on the periphery of the rotary blade, and the ratio of the peripheral length of the cutting blade portion and the notch portion is 0.4-0. By being 6, the frictional resistance can be reduced and the frozen fish can be cut.
Further, the cutting blade portion used in the fillet cutting device according to claim 3 has a knife-like symmetry, and a back gap is formed at a position toward the center, so that friction can be reduced.

  The fillet cutting device according to claim 1 of the present application can cut frozen fish as it is. In addition, the fillet cutting device according to claim 2 can reduce friction by forming a back gap on the cross section of the cutting blade portion.

An embodiment of the fillet cutting device 1 of the present invention will be described with reference to the drawings.
FIG. 1 is an overall view of a fillet cutting device 1. This fillet cutting device 1 is a well-known device, and the invention of the present application is characterized by a rotary blade 20. The rotary blade 20 is cut into the known fillet cutting device. It is attached to the device and cuts frozen fish into slices.

The cutting device 1 is provided with a belt conveyor 5 that conveys the frozen fish 10 placed in the longitudinal direction in the feed axis (X-axis) direction.
In addition, a rotary blade 20 that moves back and forth (details will be described later) in order to cut the frozen fish 10 placed on the belt conveyor 5 in an appropriate thickness in order perpendicularly to the belt conveyor 5 (Y axis). It is arranged.

The rotary blade 20 is attached to the upper base 7, and rotates at a predetermined rotational speed via an electric motor and a speed reducer (not shown) arranged on the back side of the upper base 7. Is a position where the frozen fish 10 can be cut (downward), and at the time of backward movement, the rotary blade 20 reciprocates through a reciprocating mechanism (not shown) which is set to a disengagement position (upward).
That is, the rotary blade 20 cuts the frozen fish 10 at the time of forward movement, and avoids the frozen fish 10 at the time of backward movement so that it can be cut.

  The upper base 7 is mounted and fixed on a base 8, and this base 8 is perpendicular to the X-axis direction of the frozen fish 10 in order to cut the frozen fish 10 with an appropriate thickness. In addition to the direction (Y-axis), as shown in FIG. 3, it can be cut in an inclined manner at an angle θ, and can be swung about the Z-axis in the XY plane via a rocking device (not shown). It has become. Therefore, as shown in FIG. 3, the frozen fish 10 can be cut at an inclined cut 11 in addition to being vertical.

2 is an enlarged view of the rotary blade 20. FIG. 2 (A) is an overall front view of the rotary blade, FIG. 2 (B) is a cross-sectional view of the peripheral edge of the rotary blade 20, and FIG. ) Is an enlarged front view of the periphery of the rotary blade 20.
The rotary blade 20 can cut frozen fish even when the peripheral edge is a continuous knife shape. However, further improvement is made here, and the peripheral edge of the rotary blade 20 is composed of alternately formed knife-shaped cutting blade portions 21 and cutout portions 22, and the ratio of the peripheral lengths of the cutting blade portions 21 and the cutout portions 22. As a result of various experiments, 0.4 to 0.6 is desirable.
In addition, if the notch part 22 is formed compared with the periphery of the rotary blade 20 being a continuous knife shape, the biting into the frozen fish 10 can be improved and the frictional resistance at the time of cutting can be reduced.
The ratio between the cutting blade portion 21 and the cutout portion 22 is selected in consideration of the frozen state of the frozen fish, the rotation speed of the rotary blade 20, the size of the frozen fish, etc., but the cutting state by the cutting blade portion 21 and the cutout portion 22 are selected. It is selected from the reduction of the frictional resistance by the strength of the rotary blade 20 and the like.

In the example shown in FIG. 2 (A), the planar shape of the notch 22 is an R-shaped groove, but the frictional resistance is reduced while considering the material, thickness, strength, etc. of the rotary blade 20. , Semicircular, trapezoidal, etc. are selected as appropriate.
Further, as shown in FIG. 2 (B), the cross section of the cutting blade portion 21 of the rotary blade 20 is symmetrical with respect to the central axis, and the tip portion 23 is a knife-like shape of a triangular spire and heads toward the center. A “back ski 25”, which is constructed with a Japanese knife, is formed at the location to reduce friction.
The thicknesses of the rotary blade 20 and the tip 23 are selected in consideration of the type of the frozen fish 10, the frozen state, the material of the rotary blade 20, the diameter and the number of rotations, and the like.
Further, it is desirable to reduce the friction by applying a fluorine resin coating on the surface of the rotary blade 20.

Next, an operation for obtaining a fillet using the cutting apparatus 1 will be described.
Since the number and weight of the fillets stored in the commodity tray are determined, the frozen fish 10 is cut as fillets accordingly.
Before the frozen fish 10 is placed on the belt conveyor 5 shown in FIG. 1, the size and the like are grasped in advance by an optical device (not shown), and the conveyor speed of the belt conveyor 5 based on the thickness of the fillet is cut. A method (vertical cutting, cutting at an inclination angle θ) is selected.

  And the frozen fish 10 on the belt conveyor 5 is fixed, and the cutting speed is controlled as shown in FIG. 3 while the conveying speed of the belt conveyor 5 is controlled based on the previously obtained data. Based on the data of (vertical cutting, cutting at an inclination angle θ), the blade 20 is cut at a cutting angle θ determined through a swing device, and the rotary blade 20 is reciprocated through a reciprocating mechanism (not shown). Sequentially cut as fillet.

As described above, the frozen fish 10 can be cut with the knife-like rotary blade 20 in the frozen state, but the preferred rotary blade 20 is formed by alternately forming the cutting blade portions 21 and the cutout portions 22 on the periphery. Is good.
That is, when the knife-like rotary blade 20 is used for cutting, the frozen fish is once half-thawed and then cut with the rotary blade so that it does not need to be frozen again, and can be cut with a band saw. Absent.
Further, the knife-like rotary blade 20, preferably the rotary blade 20 having the cutting blade portions 21 and the cutout portions 22 alternately formed on the periphery, is economical and can be replaced only by replacing the rotary blade in the conventional apparatus. There is very little generation of chips.

1 is an overall view of a fillet cutting device. (A) is the whole front view of a rotary blade, (B) is AA sectional drawing of the periphery of a rotary blade, (C) is a front enlarged view of the periphery of a rotary blade. It is a top view of a fillet state by cutting a frozen fish.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fillet cutting device 5 Belt conveyor 10 Frozen fish 20 Rotary blade 21 Cutting blade part 22 Notch

Claims (3)

A fillet cutting device that creates a fillet by cutting frozen fish with a rotary blade,
The said cutting blade is provided with a knife-shaped cutting part, The fillet cutting device characterized by the above-mentioned.   The cutting apparatus according to claim 1, wherein cutting blade portions and cutout portions are alternately formed on the periphery of the rotary blade, and the ratio of the peripheral lengths of the cutting blade portion and the cutout portion is 0.4 to 0.6. 3. The fillet cutting apparatus according to claim 1, wherein the cutting blade section has a knife-like cross section, and a back ski is formed at a position toward the center.

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