JPS6028220Y2 - Fish body splitting and boning device - Google Patents

Description

[Detailed description of the invention] This invention relates to a device that automatically splits fish.

When splitting a fish body into open pieces using conventional equipment, one side of the fish is boneless, and the other side has the vertebrae and tail attached.

[-However, depending on the species of fish or the method of cooking, it may be necessary to remove the vertebrae and the upper and lower comb-like bones (hereinafter referred to as backbones) that are connected to these vertebrae. Most of the work was done by hand.

In recent years, some devices for mechanically removing midbones have been announced; for example, Japanese Utility Model Publication No. 48-7599. Jitsuko 55
-49669 and Utility Model Publication No. 55-88682, the fish body is held between the holding conveyors on both sides),
A deep cut is made on both sides of the fish, and a plow-shaped fixed blade is used to scoop out the back bone.This device was experimentally impressive, but it is used to carve thousands of fish a day. In fish processing factories, the sharpness of the plow-shaped blades is significantly reduced due to wear, and the blades have to be replaced and worn many times, and the operation of the equipment is considerably reduced due to these operations, and in the end, it is no longer practical. It has not yet reached that point.

In addition, a device that separates the fish body and the middle bone into three pieces, or removes the middle bone, has been announced as Jikkowa 50-3520. Cuts are made on both sides of the bone, and a pair of rotating disk cutters are used to cut the middle bone (while both the meat and the middle bone are being held between the gripping conveyor), so the middle bone is not opened sufficiently, and the middle bone is removed. By a rotating disc cutter for
(There is a risk of re-severing the body that has already been opened)
, the fish body itself is simply held in the gripping conveyor,
Because of the instability in the vertical direction, the yield rate was significantly lowered, as the product intended to be opened ended up with three sheets.

The purpose of this invention is to improve the shortcomings of such devices that have already been published, to ensure that the midbone and the meat are always separated, and to improve the yield.

This invention consists of a first nipping conveyor consisting of a pair of endless belts each having an upright opposing surface, and a second nipping conveyor on an upstream side and a downstream side of an endless receiving belt conveyor having a horizontal transfer surface. A clamping conveyor is provided along the receiving endless belt conveyor, and between the pair of endless belts in the first belt conveyor there is a cutter consisting of several rotary disc cutting blades that cut both sides of the fish body bone from above to below. A clamping device is provided, which connects the first clamping belt conveyor and the second clamping belt conveyor.
Both sides of the fish body are laid out horizontally between the conveyor belts.
A guide plate is provided that guides the backbone onto the endless receiving belt conveyor, makes only the backbone stand up, and guides it to the second clamping belt conveyor. This fish body splitting and boning device is characterized in that it is provided with a pair of largely inclined rotary disc cutting blades for separating the lower part from the fish body.

The device of this invention will now be described based on the illustrated representative embodiment.

In the figure, reference numeral 10 denotes an endless receiving belt conveyor with an S horizontal transfer surface, which is usually made of an endless receiving rubber belt, and in the section 12 near the discharge end, the center part is convex upward and has ridges in the transfer direction. A guide roller 13 or a guide member is provided so that the guide roller 13 or the guide member has an apex angle of 1600 to 120°.

Section 1 near the discharge end of the above-mentioned endless belt conveyor 10
On the entire length endless belt conveyor 10 except for 2,
A first clamping conveyor 15 of a clamping type consisting of a pair of endless belts 14 having opposing surfaces standing upright is provided close to this, and the fish body A on the receiving endless belt conveyor 10 is clamped in an upright state. It is provided in the machine frame 16 so as to operate at the same circumferential speed as the endless belt conveyor 10.

This first clamping conveyor 15 has a pair of endless belts 14.
In order to apply clamping pressure to the back surface of the guide plate 17,
Or rollers (not shown) can be brought into contact.

The height of the holding conveyor 15 may be such that it can hold at least the lower half of the fish body A.

The following members or devices are sequentially provided between the pair of endless belts 14 in the first holding conveyor 15 from the carry-in side to the carry-out side.

Immediately, a first holding device 18 for pressing the fish body A onto the endless receiving belt conveyor 10 from above is provided on the most carrying-in side.
A holding plate 20, which is pivoted on a horizontal axis 19 that crosses 0, and whose unloading side is sloped low, is brought into pressure contact with the fish body A by a spring 21, and the tip of the holding plate 20 has the shape of the fish body A. Following the example, the cross section is chevron-shaped with the central part convex upwards (
(See Figure 4).

This presser device 18 is not limited to the inclined presser plate 20, but may be a roller to reduce friction.

Next, a first cutting device 22 consisting of two rotating disc cutting blades 23 is provided immediately on the unloading side of the first holding device 18, and the two rotating disc cutting blades 23 support the endless belt conveyor. The support member 26 that supports the drive shaft 24 is attached to the transverse horizontal drive shaft 24 so that its interval can be adjusted, and its position can be changed and adjusted in the vertical direction relative to the machine frame 16 and in the loading/unloading direction. In the illustrated example, this support member 26 is provided so that its position can be changed and fixed in the vertical direction with respect to the gate-shaped upright member 25 that is provided on the machine frame 16 and fixed to move in the loading/unloading direction. It is.

These two rotating disc cutting blades 23 are connected to the first holding conveyor 1.
This is for cutting the fish body A held in the frame 5 into the comb-shaped scales that touch both sides extending above the vertebrae up to the vertebrae, and are attached to the drive shaft 24 with the intervals determined according to the type and size of the fish. .

The two rotary disk cutting blades 23 preferably have their central portions tapered outward as shown in FIGS. 2, 3, and 5.

Further on the delivery side of the first incision device 22, there is a device for making a deeper incision in one of the two incisions formed on both sides of the comb-like bone by the first incision device 22. A second cutting device 27 consisting of a single rotary disc cutting blade 28 is installed unevenly on the side and cuts the fish body A along the side of the comb-shaped bones extending downward. It has a radius that is large enough to accommodate it.

In the embodiment shown in FIG. 6, the lower side of the disc cutting blade 28 is inclined from the center of the fish body A, and the upper side thereof is inclined at an angle α of 5 to 15 degrees to the outside of the fish body A.

The inclination of this disk cutting blade 28 and the fish body A is relative, and the guide plate 17 or the roller may be provided at an inclination so that the fish body A is inclined laterally at the second cutting device 27 portion. good.

This second incision device 27 is provided so that its position can be changed and fixed to the machine frame 16 as appropriate, up and down, in and out, or to the left and right.

In the illustrated example, the drive shaft 29 of the disc cutting blade 28 is tilted and supported by its bearing member 30, and the bearing member 30 or the machine frame 16 is rotated in the loading/unloading direction and the endless belt conveyor 10.
It is provided so that it can be moved and fixed slightly in the width direction.

Next, on the unloading side of the second cutting device 26, a second holding device 31 is provided which presses the fish A from above onto the receiving endless belt conveyor 10. The long inclined holding plate 32 extends in the conveying direction and reaches the horizontal transfer surface of the endless belt conveyor 10 at the lower part, and is held by the spring 33 so that the tail of the fish A can be laid down flat and pressed against the surface of the endless belt conveyor 10. It's a boost.

The tip 34 of the holding plate 32 in this second holding device 31 is slightly slanted so that the fish's tail falls outward.

This second holding device 31 may be a holding roller instead of the holding plate 32, or may be a device that holds down the fishmonger that has advanced into the holding conveyor from above or from the side when the tail of the fish reaches that position. are the same.

35 is a third cutting device provided on the unloading side of the second holding device 31, and a rotating disk cutting blade 36 thereof is located at the tip of the holding plate 32 of the second holding device 31, In contrast to the second cutting device 27, it is provided so as to be inclined toward the opposite side so as to cut into the other side of the comb-like bone of the fish body A to the vicinity of the lower part thereof, and to be unevenly distributed on the other side.

The angle of inclination of this cutting blade 36 is also similar to that of the fish body A, and the fact that the cutting blade 36 does not need to be tilted as long as the fish body A passes through the body at an angle means that the second cutting device 27 does not need to tilt the cutting blade 36. Same as in case.

At the second and third cutting devices 27.35, the cutting blade 28
．． 36 is inclined, the first nipping conveyor 15
The first clamping conveyor 1 should be protected from being damaged by these cutting blades.
It is preferable to provide a guide for tilting the upper edge of 5 outward.

Next, on the horizontal transfer surface in the section 12 near the discharging end of the endless receiving belt conveyor 10, which extends further in the discharging direction from the discharging end of the first clamping conveyor 15, there is an upright member that clamps only the backbone portion B. A second nipping conveyor 40 consisting of a pair of endless belts is provided at a distance from the first nipping conveyor 15. A1 is expanded horizontally, and the receiving endless belt conveyor 1 is
A guide plate 37 is provided on the horizontal transfer surface of the endless receiving belt conveyor 10 to guide the conveyor belt 0 upwardly, to make only the backbone B stand up, and to guide it to the second clamping conveyor 40.

Between the horizontal transfer surfaces of the endless belt conveyor 10 of the second clamping conveyor 40, a cutting device 38 consisting of a pair of rotating disc cutting blades 39 for cutting the lower part of the backbone portion B in the horizontal direction is provided.
The pair of rotary disc cutting blades 39 are arranged along the lower surface of the guide plate 37, and after the backbone part B is separated from the fish flesh A1 by these cutting blades 39, the second clamping The conveyor 40 delivers this to the bone receiver.

In addition, the cutting blades of each cutting device and cutting device are sprayed with water or sprayed with water to reduce the coefficient of friction, remove fish meat, fin debris, etc. that have adhered to the cutting blades, and improve the sharpness of the cutting blades. A water jet device 41 is provided.

In order to split a large number of fish and remove their backbones using the device of this invention, which is constructed as shown above, it is necessary to cut the heads with the scales removed, or fish bodies A with the heads and internal organs removed, and cut them into pieces of approximately the same size. The distance and height of the pair of cutting blades 23 of the first cutting device 22 are adjusted and fixed according to the size of the fish body, and the receiving endless belt conveyor 10 and the second cutting blade 23 are fixed. 1. The second holding conveyor 15.40 is driven at the same speed, the cutting blades 23, 28, 36 and 39 of each cutting device 2 are rotated together, and the fish body A prepared in advance is When inserted from the head between the gripping conveyors 15 with the back facing up and the abdomen in contact with the endless belt conveyor 10,
The fish body A is first held down by the holding plate 20 of the first holding device 18.
It is pressed against the receiving endless belt conveyor 10 surface in a predetermined posture and is conveyed to the first cutting device 22, where it is cut into two cutting blades 23.
Make two longitudinal cuts in the upper half of the fish body along the comb-like bones all the way to the vertebrae.

In this case, the cut cut into the fish body A is transferred while being expanded by the thick portions of the pair of cutting blades 23.

Next, the fish body A is transported to the second incision device 27, and one of the two incisions formed by the first incision device 22 is cut into the fish body A from one side of the vertebrae along the lower bone. Make an even deeper incision without dividing the abdomen.

Next, when the fish body A is transported to the second holding device 31 section, the top end of the holding plate 32 presses the fish body A so as to stroke the surface of the fish body, flattening the tail of the fish body, and transferring it to the endless belt conveyor 10.
While being held down, the fish body A is fed into the third cutting device 35, and the cutting blade 36 is inserted into the cut on the opposite side from the front, making a deep cut along the lower bone from the vertebrae, and cutting into the middle bone part B. The divided fish A is in a hinge-like state in the abdomen, and as the endless receiving belt conveyor 10 and the first holding conveyor 15 move, the vertebrae are cut by the cutting blade 36 near the tail.

The fish A in this state is transferred to the first holding conveyor 1.
When the fish is fed from the delivery end of the pipe 5 to the section 12 near the delivery end of the endless receiving belt conveyor 10, the fish meat parts on both sides open left and right, and in this section 12, the endless receiving belt conveyor 10 has a raised central part. Therefore, the fish meat A□ is spread out into a yamagata shape or a flat shape.

The middle bone part B is brought into a vertical state by the guide plate 37,
The entire fish body is transferred while being held by the second holding conveyor 40 in cooperation with the endless receiving belt conveyor 10, and the lower end of the backbone part B is cut by a pair of cutting devices 39 provided on the side of the guide plate 37. The back bone portion B is discharged by the second clamping conveyor 40, and the spread fish meat A1 is carried out from the end of the receiving endless belt conveyor 10.

In the device of this invention, which is constructed and operated as shown in FIG. (parts are held together)
Since both sides of the backbone part B are fed to the cutting device, the fish are cut at accurate positions, and at the delivery end of the first nipping conveyor 14, the fish body is deeply cut on both sides of the backbone part B.
There are no bones left in either fish body, and the fish body A sent out from the first clamping conveyor 14 has only the middle bone part B standing up, and only this part is clamped by the second clamping conveyor 40, and
The fish body is completely opened and in this state it is cut with a pair of rotating disc cutting blades 39, so there is no danger of the cutting blades 39 cutting into the fish body, and the fish body is completely separated from the back bone part B. The open appearance does not deteriorate, and the yield is also good.

In addition, each cutting device has cutting blades made of rotating discs, which provide good cutting quality and long lifespans.By lightly applying a grindstone to the side of the cutting blade, polishing can be done without disassembling and replacing the cutting blade, and maintenance management is easy.

In other illustrated embodiments, the first nipping conveyor 14
The cutting device installed in between first cuts the middle bone B along both sides of the comb-shaped bone up to the vertebral region using the first cutting device 22, and then cuts the middle bone B along both sides of the comb-shaped bone using the second and third cutting devices. By making a deep cut to the underside of the vertebrae while widening this, it is possible to minimize the amount of fish meat that adheres to the midbone part B.

In addition, the fish bones are cut securely to the vicinity of the tail, and the tail remains together on one side of the fish, giving it a good appearance when opened, and can be used in a variety of dishes such as frying, sushi, and tataki.

In the other illustrated embodiments, the second and third incision devices 27 and 35 are inclined at an angle of about 5° to 15° as shown in the figure, so that even in the lower part of the vertebrae, the thickness of the vertebrae is lower than the thickness of the vertebrae. It is possible to make thin cuts and effectively leave the fish flesh A1.

In addition, since the cutting device is constantly washed with water by the water jet device 41, the sharpness of each cutting blade 23, 28, 36 is maintained, fine debris is removed, and the open fish body is kept in its original appearance. You can get something good.

In other illustrated endless belt conveyors 10,
Since there is a shallow groove 11 in the center, the fish body A is at the loading end.
If the fish body A is fed in an upright position, the lower part of the fish body A will engage this groove 11, and there will be no risk of it falling over unnecessarily, and there is no risk of defective cutting.

Further, it is easy to form the belt conveyor 10 into a mountain shape in the section 12 near the discharge end.

Furthermore, in the embodiments of the first cutting device 22 shown in FIGS. 2 and 5, the cutting blade 23 of the first cutting device 22 has a central portion that is gradually thickened or bulged outward. Because of the shape, the cut opens according to the cut made by the cutting blade 23, and since the first holding conveyor 15 only holds the lower half of the fish A, the cut of the fish A once expanded is Without closing again, the next second cutting device 27. The material is fed into the third cutting device 35, and the cutting operations in these subsequent steps are reliable, and there is no risk of defective cutting.

In addition, in the embodiments of FIGS. 1, 2, and 3, the first
The cut in the fish body A formed by the cutting device 22 is closed again due to some disturbance, and the second cutting device 2
7. To avoid being fed into the third cutting device 35, between the first cutting device 22 and the second cutting device 27 and between the first cutting device 22 and the third cutting device 35. A guide rod or guide plate 42 is provided to keep the cut open.

The second nipping conveyor 40 is shown as a belt conveyor type in the illustration, but the invention is the same whether it is a pair of rollers or a roller-shaped brush.

Furthermore, in the embodiment shown in FIG. 1, since the fishmonger is completely laid down on the unloading side of the third cutting device, that is, at the unloading part of the first nipping conveyor 15, a water jet nozzle is installed downward from above at this part. 43 is provided, and the fish meat and fishmonger are flattened by the dynamic pressure of the jetted water.

[Brief explanation of the drawing]

The drawings show typical embodiments of this invention; Fig. 1 is a schematic diagram of the entire device, Fig. 2 is a plan view of Fig. 1, and Fig. 3 is a side view of the main parts of the invention. FIG. 4 is a perspective view of the first presser device, FIG. 5 is a longitudinal sectional front view of the first cutting device, FIG. 6 is a longitudinal sectional front view of the second cutting device, and FIG.
The figure is a perspective view of the second holding device, FIG. 8 is a vertical cross-sectional front view of the third cutting device, FIG. 9 is a vertical cross-sectional front view of the cutting device, and
The figure is an enlarged sectional view of an endless belt conveyor. Symbols in the figure: A...fish body, B...middle bone, 10...endless belt conveyor, 12...
...Discharge end vicinity section, 15...First clamping conveyor 16...Machine frame, 18...First presser device, 22...First holding device 1 cutting device, 23...
... Cutting blade, 27 ... Second cutting device, 28.
... Cutting blade, 31 ... Second presser device, 35
...Third cutting device, 36... Cutting blade, 3
7...Guide plate, 3...Cutting device, 4
0... Second clamping conveyor 41... Water injection device.

Claims (1)

[Scope of utility model registration request] is S゛The upstream and downstream sides of the receiving endless belt conveyor with a horizontal transfer surface are provided with a first clamping belt conveyor and a second clamping belt conveyor, each consisting of a pair of endless belts having upright opposing surfaces. is provided along the receiving endless belt conveyor, and between the pair of endless belts in the first belt conveyor is a cutting device consisting of several rotary disc cutting blades for cutting both sides of the fish body bone from above to below. is provided between the first clamping belt conveyor and the second belt conveyor, and the both sides of the fish body are spread out horizontally and guided onto the endless waist belt conveyor, only the backbone is erected, and then transferred to the second clamping belt conveyor. A guiding guide plate is provided, and a pair of inclined rotary disc cutting blades are provided between the second holding belt conveyor and the horizontal transfer surface of the endless receiving belt conveyor to separate the lower part of the midbone from the body. A fish body splitting and boning device characterized by the following.