JPH0481416B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to an apparatus used when cutting or cutting fish into three pieces for food.

(Prior art) Conventionally, in order to remove the middle bone of a fish, the applicant has developed a device that first cuts both sides of the middle bone, listens to only the flesh on both sides, and separates the back middle bone from the body. 59−
It was developed as No. 203443 and has achieved some results. Furthermore, a device for cutting open fish bodies conveyed from above and below by rotating disc cutters is also known as Japanese Patent Publication No. 17875/1982, but in either case, the device becomes long and has a complicated structure.

Furthermore, a device in which a spade-like midbone removal blade is provided at the position immediately after the incision is made from above using a pair of rotating disc cutters is known as Utility Model Publication No. 19119-1982 and Japanese Utility Model Application No. 88682-1982, as mentioned above. The relative speed between the spade-like cutter and the fish body is slow, and bones and skin get tangled in the cutting edge of the cutter, resulting in extremely poor cutting quality and the cutter having to be cleaned frequently, resulting in poor yield.

(Problems to be Solved by the Invention) The present invention aims to reduce the size of the entire device and simultaneously crush and remove the backbone of the fish body.

Another purpose is to enable selective processing of opening the body and splitting the body into two pieces.

(Means for Solving the Problems) The present invention is characterized in that a pair of clamping belt conveyors on which clamping conveyance sections are erected are mounted on a transport support base having a long and substantially flat support surface in the transport direction, parallel to the support base. , and in which a pair of left and right rotating disc cutters are installed in close proximity to each other between the pair of clamping belts and inserted from above, the inner surface of one of the pair of rotating disc cutters A circular saw cutter having a tip circle that is almost the same as the outer periphery is installed on the same axis as the rotary disc cutter, in close contact with or very close to the rotary disc cutter. The angle between the saw cutter and the other rotary disc cutter is 5°.
-40 degrees, and at least in the part of the support stand where the pair of rotating disk cutters are located, a slit with a width slightly narrower than the fish body to be transported to the support stand is provided in the transport direction. In this slit, a lower cutting cutter consisting of a second pair of rotary disc cutters with a second circular saw cutter sandwiched in the center like a sandwich cutter moves up and down from below the support base to above the support surface. It is installed in a position where it can be freely and slightly overlapped with the pair of rotating disc cutters at the top, and the tip circle of the second circular saw cutter is slightly larger than the outer circumference of the second pair of rotating disc cutters on both sides. The fish body cutting device is characterized in that the distance between the second pair of rotating cutters is small enough to cut into the middle bone of the fish body being transported.

(Function) In this invention, the angle α of the pair of rotating disc cutters is determined depending on the size of the type of fish. That is, if the fish is large, the trap angle α should be large, and if the fish is small or elongated, the trap angle should be small. Preferably, the angle α is between 5° and 20°.

Then, the gripping belt conveyor and the pair of rotary disc cutter and circular saw cutter are rotated in the forward direction, and the fish are fed between the gripping belt conveyors so that the lower side of the fish is in contact with the support surface.

In this way, while the fish body is being conveyed by a clamping belt conveyor, both sides of the backbone are cut into pieces by a pair of rotating disk cutters, and at the same time, the backbone portion located in the middle is sequentially crushed and ground by a circular saw cutter. When the entire length of the fish body is cut open, the central bone is completely removed.

In addition to the above action, when the pair of second rotary cutters are made to protrude slightly above the slit, the ventral part of the fish body is also cut open, and the fish body is completely cut by the second circular saw cutter. It is completely divided into two parts, has no bones, and is sent out from the delivery end of a pair of clamping belts.

(Embodiment) In FIGS. 1 to 5, reference numeral 10 denotes a support stand having a flat support surface 11, and the support surface 11 includes a pair of flat belt conveyors in the example shown in FIG. , the holding portion 14 stands upright and is located on the support base 10 in a horizontal direction. A pair of rotary disk cutters 15a, 15b are provided in the middle of the clamping portion 14, and the outer peripheral edges 16a, 16b are provided almost in contact with the support surface 11.

In this embodiment, the pair of rotary disc cutters 15a and 15b are open at the top, and the angle α thereof is freely adjustable within the range of 5° to 40°. In the illustrated example, these rotating shafts 17a, 17
The bearing parts 18a and 18b supporting the rotary shafts 17a and 17b are respectively supported by tiltable movable members 19a and 19b whose tilt angles can be adjusted around horizontal axes at right angles to the rotary shafts 17a and 17b, and these tiltable movable members 19a and 19b are horizontally moving members 20 that are mutually exclusive.
The horizontal moving member 21 is supported by the machine frame 2 of this device.
2 is provided so that it can be moved vertically and fixedly.

Therefore, the pair of rotating disc cutters 15a,
The angle α of 15b can be freely adjusted within the range of 5° to 40°, and the interval and height can also be freely adjusted according to the type and size of the fish to be transported.

In particular, the pair of rotating disc cutters 15a, 15
A circular saw cutter 23 is provided coaxially along the inner surface of one of the rotating disk cutters 15a (or 15b), and the tooth tip circle 24 is the same as or similar to the rotating disk cutter 15a (or 15b). This difference is slightly smaller than this, and in the embodiment, the difference is about 2 mm. This circular saw cutter 23 may be fixed integrally with the rotary disk cutter 15a (or 15b), or may be driven by a separate drive means 3.
5, it also falls within the scope of the invention to be equipped to rotate at separate rotational speeds. Further, the shape of each cutting edge of the circular saw cutter 23 may be asymmetrical or symmetrical in the rotational direction.

In addition, in FIGS. 2 and 3, a portion of the support base 10 located just below the rotary disc cutters 15a, 15b is provided with a lower cutting cutter 2, which will be described later.
The width B is not particularly limited as long as it is narrower than the thickness of the fish body, but it is preferably narrower than the thickness of the fish body A.

In the lower cutting cutter 25, a pair of second rotating disc cutters 27 having the same diameter are attached to a common rotating shaft 29.
a, 27b are provided, and a second circular saw cutter 28 is provided in the middle, the tooth tip circle 28a is slightly smaller (about 3 to 10 mm) than this outer diameter, and the thickness is slightly thicker than the upper circular saw cutter 23. A bearing 31 that supports this rotating shaft 29 is provided on an arm member 33 whose position can be adjusted up and down, and the lower cutting cutter 25 has an outer peripheral edge that protrudes and retracts from the support surface 11 from the lower side of the support base 10. The cutters 15a and 15b are positioned so that they can be wrapped slightly outside of the upper rotary disk cutters 15a and 15b.

Effects of the Embodiment In the embodiment described above, the angle α of the pair of rotary disk cutters 15a and 15b is determined depending on the size of the type of fish. In other words, the trapping angle α is large for large fish, and the trapping angle α is large for small or long fish.
is between 5° and 20°.

Then, the clamping belt conveyor 13, the pair of rotary disc cutters 15a, 15b, and the circular saw cutter 23 are rotated in the forward direction, and the fish are fed between the clamping belt conveyors 13 so that the lower side of the fish is in contact with the support surface 11. Then, the fish body A is cut on both sides of the back bone by a pair of rotating disk cutters 15a and 15b, and at the same time, the middle bone portion located in the middle is sequentially crushed and ground by the circular saw cutter 23, and the entire length of the fish body is opened. When removed, the midbone portion will be completely removed.

Furthermore, if the lower cutting cutter 25 is sunk under the support stand 10 and operated, the fish body will not be divided into two pieces, but will be processed into an open state.

The lower cutting cutter 25 is projected from the slit 26 onto the support stand 10, and the circumferential edges of the second rotating disk cutters 27a, 27b and the upper rotating disk cutters 15a, 15b located on the support stand come into contact with each other. When the fish body A is brought in as close as possible, and the fish body A is fed in, the fish body A is divided into left and right parts, and the central bone part and the upper and lower rotary disk cutters 15a,
The skin in the area sandwiched between 15b and 27a and 27b is also completely crushed and removed.

(Effects of the Invention) In this invention constructed and operated as described above, when the second rotary cutter and the second circular saw cutter are used without protruding from the slit, the fish body A
At the same time as opening, the back bone part is crushed and scraped off with the circular saw cutter 23, so there is no need to keep the back bone part upright, and there is no need for a separate back bone removal device on the downstream side, simplifying the device. The length of the clamping belt conveyor 13 can also be short, and the device itself can be miniaturized.

In addition, since the bones and part of the fish meat in the back bone portion are in a crushed state, they can be recovered and used as raw materials for kneaded foods, surimono feed, etc.

When the angle α of the rotary disk cutters 15a and 15b is within the above range, the amount of fish meat attached to the backbone and removed is small, and if the angle is small, the fish meat below the vertebrae is removed. Much of the material is removed, resulting in poor yield.

In addition to the above effects, a pair of second rotary cutters 2
7a, 27b and the second circular saw cutter 28 are made to protrude from the slit 26, and the second rotary cutter 15
a, 15b, and by doing this, it is possible to divide the fish body A to the left and right, and to divide the backbone and the fish body, and the upper and lower circular saw cutters 23 and 28 The separated midbone portions are sequentially crushed and removed.

Effects of the Example In the case where the support surface 11 is a flat belt conveyor 12, the resistance to transporting fish bodies is small.

On the other hand, in the case where the flat belt conveyor 12 is used, the resistance to transporting fish bodies is small.

Support platform 1 without flat belt conveyor 12 on the contrary
If 0 is fixed, the structure becomes simple.

The circular saw cutter 23 is a rotating disc cutter 15a.
(or 15b) does not require a transmission means for the circular saw cutter 23. The circular saw cutter 23 is connected to the rotating disk cutter 15a (or 1
5b), and the rotation speed can be selected independently by a separate drive means 35, the circular saw cutter 23 The rotation speed of the circular saw cutter 23 can be selected, and the shape of each blade of the circular saw cutter 23 can also be selected depending on the type of fish and purpose.

When the width B of the slit 26 is narrower than the thickness of the fish body A, there is no fear that the fish body A will fall into the mesh even when the fish body A is held and conveyed by a pair of holding belt conveyors 13.

Further, in the case where the lid 32 can be attached to and removed from the slit 26, the position of the fish A can be more stabilized by fitting the lid 32 into the slit 26 (see FIG. 1).

In addition, the rotating disk cutter 15a in FIG. 2,
In the case where a pair of third rotary disk cutters 34 are provided on the upstream side of the rotary disk cutter 15b and slightly overlapped therewith, the rotary disk cutters 15a, 15
Immediately before the incision is made at point b, cuts are first made along both sides of the backbone using the pair of third rotary cutters 34, so that the rotary disc cutters 15a and 15b can easily make the cut, and the bone can be opened or cut more neatly.

[Brief explanation of the drawing]

The drawings are related to the present invention, and show typical embodiments of the present invention; FIG. 1 is a partially longitudinal front view, FIG. 2 is a schematic side view of the invention, and FIG. The figure is a partially longitudinal front view, and FIG. 4 is a schematic plan view. Explanation of main symbols in the figure, 10...Support stand, 11
...Supporting surface, 13...Pinch conveyor, 14...
Clamping portion, 15a, 15b...rotating disk cutter,
26...Slit, 27a, 27b...Second rotary disk cutter, 28...Second circular saw cutter.

Claims (1)

[Scope of Claims] 1. On a conveyance support table having a long and substantially flat support surface in the conveyance direction, a pair of nipping belt conveyors each having a nipping conveyance section erected thereon are provided in parallel with the support table; In the device in which a pair of left and right rotating disc cutters are inserted from above and close to each other between the pair of clamping belts, one of the pair of rotating disc cutters has a ring on the inner surface thereof. A circular saw cutter having a tip circle that is substantially the same as the outer periphery of the circular saw cutter is provided in close contact with or very close to the rotary disk cutter, and the circular saw cutter and the circular saw cutter are arranged on the same axis. The angle of the rotating disc cutter is
The angle is approximately 5° to 40°, and at least in the part of the support stand where the pair of rotating disk cutters are located, a slit with a width slightly narrower than the fish body to be transported to the support stand is provided in the transport direction. In this slit, a lower cutting cutter consisting of a second pair of rotary disc cutters with a second circular saw cutter sandwiched in the center like a sandwich cutter protrudes from below the support base to above the support surface, and extends upward and downward. It is movably mounted at a position where it can overlap very slightly with the pair of rotating disk cutters at the top, and the tip circle of the second circular saw cutter is closer to the outer periphery of the second pair of rotating disk cutters on both sides. The fish body cutting device is characterized in that the distance between the second pair of rotating cutters is such that the second pair of rotary cutters can cut into the middle bone of the fish body being transported.