JPH0549387A - Scale-removing machine - Google Patents

Abstract

PURPOSE:To uniformly remove scales from various fishes having different thichnesses. CONSTITUTION:In upper and lower conveyors for nipping and carrying a fish from which the scales are removed, the upper conveyor is disposed so as to be vertically movable in response to the thickness of the body of the fish, and a water-spraying means 16 for removing the scales is attached to the downstream end of the upper conveyor.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fish scaler used for removing scales of a large amount of fish before cooking a large amount of the fish.
The present invention relates to a scale removing machine capable of removing scales uniformly.

[0002]

2. Description of the Related Art A fish scaler generally has a plurality of conveyors arranged in the transport direction on the upper and lower sides of the fish so as to transport the fish to be scaled. Then, on the upper and lower sides of the fish, water injection means for injecting high-pressure water in a water knife shape toward the scales of fish in the cut portions of the plurality of conveyors, in other words, in the gap between the conveyors arranged in the conveying direction. Is provided. This water injection means is arranged at an injection angle of 3 to 25 °
It has one or a plurality of injection nozzles (JP-A-54-54).
141297, JP-B-55-54315 and JP-B-55-60788).

The conveyor and the water jetting means are usually mounted on a movable machine frame.

[0004]

However, in these prior art scales, the position of each injection nozzle is fixed. Therefore, if the thickness of the fish body changes, the spray nozzle approaches or moves away from the surface of the fish body, and scales cannot be removed uniformly. For example, if the position of the injection nozzle is set for a relatively thick fish, the scale cannot be completely removed for a relatively thin fish.

Actually, since the fish body fluctuates from several hundreds of grams to several kilograms, if the position of the injection nozzle is fixed, in order to eliminate the above-mentioned drawbacks, the scale of the scaler should be adjusted to the size of the fish. You will have to increase the number.

Further, there is a type in which the position of each injection nozzle can be moved in a screw type, but there is a drawback that it is complicated to adjust with a screw each time the thickness of the fish body changes.

It is an object of the present invention to provide a fish scaler capable of avoiding the above-mentioned drawbacks and uniformly removing fish scales even if the thickness of the fish body varies.

[0008]

In order to solve the above problems, the present invention provides at least two conveyors for sandwiching and carrying fish to be scaled, and water jetting means for jetting water toward the fish scales. And a scaler for fish including
At least one of the two conveyors is movable in the thickness direction of the fish so that the distance between the conveyors can be changed according to the thickness of the fish, and the water injection means injects water of a predetermined pressure on the scales of the fish. And a water jetting means, wherein the water jetting means is movable together with the at least one conveyor so that the relative position of the water jetting means is constant. To do.

Further, the at least two conveyors are
The upper and lower conveyors are arranged vertically, and the upper conveyor is movable in the thickness direction of the fish according to the thickness of the fish. It can be movable with the upper conveyor so that it remains constant.

Further, the fish is carried by a conveyor means composed of a plurality of upper and lower conveyors arranged in the carrying direction of the fish to be scaled, and at least the gap between the conveyor and the upper conveyor lined up in the fish carrying direction is arranged. One of the water jetting means is arranged together with the conveyor adjacent to the upstream side so that the relative position of the water jetting means to the conveyor adjacent to the upstream side in the fish transport direction is constant with respect to the water jetting means. It is movable.

[0011]

In this way, the distance between the surface of the fish body and the water jet nozzle is kept constant despite the variation in the thickness of the fish body. Since the sprayed water hits the scales with a substantially constant pressure, the scales are removed uniformly.

[0012]

Embodiments of the present invention will be described in detail with reference to the drawings.

1 to 3 show a fish scaler 10 according to the present invention. The fish scaler 10 is attached to a machine frame 12 having casters 11.

The fish scaler 10 removes scales of fish, and a pair of conveyor means 14 and 14 'for sandwiching a scaled fish (not shown) from above and below and transporting it in the directions of arrows A and A'. For this purpose, upper and lower water jetting means 16, 16 'are provided on the conveyor means 14, 14', respectively. The conveyor means 14 consists of two endless conveyors 14a, 14b, and the conveyor means 14 'consists of two endless conveyors 14'a, 14'b. Furthermore, the conveyor means 1
The motors 4, 14 'are driven by a motor 18 mounted on the machine frame 12 via a speed reducer 20 and a transmission mechanism (not shown).

The water jetting means 16 jets high-pressure water toward the fish scales in the gap 15 of the conveyor means 14, that is, the gap 15 between the conveyors 14a and 14b arranged in the fish transport direction. Also, the water injection means 1
6'is likewise a conveyor 14 'of the conveyor means 14'.
High-pressure water is jetted toward the fish scales in the gap 15 'between a and 14'b. In the gap 15 ', the barnet 21 prevents the fish from falling.

The conveyor means 14 comprises a short conveyor 14a and a long conveyor 14b arranged in the moving direction of the fish. Conveyor 1
The moving fish is exposed in the gap portion 15 between 4a and 14b. The conveyor means 14 'is also constructed similarly to the conveyor means 14, but the conveyor 14'a is long and the conveyor 14'b is short so that the lengths of the upper and lower conveyors are staggered. Therefore, the upper and lower gap portions 15, 15 '
Appear to be displaced in the front-rear direction, and the gap portions 15 and 15 'are formed by recesses formed by the conveyors on the upstream and downstream sides and the long conveyor on the opposite side, respectively. Then, the fish is first sandwiched between the conveyors 14a and 14a 'and conveyed, and then exits into the gap 15, and then conveyed between the conveyors 14'a and 14b and exits into the gap 15'.
It is conveyed by being sandwiched between b and 14'b.

These conveyors 14a, 14b, 14 '
Each of a and 14'b is composed of, for example, a pulley, a net belt or a sprocket, and a chain. In either case, the belts and chains are preferably made of a flexible material that does not damage the fish.

Conveyors 14a, 14b, 14'a, 1
4'b are respectively supported by an upstream rotary shaft 17a, a downstream rotary shaft 17b and a dorsal rotary shaft 17c at three points in the moving direction of the fish, and are driven by the transmission mechanism. However,
The long conveyor means 14b is provided with two rotary shafts 17d and 17e between the upstream rotary shaft 17a and the downstream rotary shaft 17b.

The distance between the rotary shaft 17a of the conveyor 14a and the rotary shaft 17a of the conveyor 14a 'is relatively large, which makes it easy to receive fish.

The rotary shafts 17d and 17e are the upstream rotary shaft 1
7a and the rotary shaft 17b on the downstream side. As a result, the rotating shafts 17d, 1
The conveyor 14b bulges toward the conveyor means 14'b toward 7e, but the gap between the downstream rotary shaft 17b of the conveyor 14b and the downstream rotary shaft 17b of the conveyor 14'b is relatively large, which facilitates the discharge of fish.

Further, the rotary shafts 17a, 17b, 17c,
The long conveyor means 14b including 17d can change its angle upward as a whole with the rotary shaft 17b at the downstream end as a fulcrum. That is, as shown in FIG. 3, the upstream rotary shaft 17a can move up and down between the upper position x and the lower position y.

The conveyors 14a, 14b have spring means 19
Since it is pressed downward by, the fish is in the state shown in FIG. 1 when the fish is not caught. However, when the fish enters under the conveyor 14a, the conveyor 14a retracts upward with respect to the thickness of the fish, and when the fish leaves the conveyor 14a, the state shown in FIG. 2 is obtained.

The water jetting means 16 is connected to the rotary shaft 17b on the downstream side of the conveyor means 14a. For connection, the water injection means 16 may be welded to the downstream rotary shaft 17b or may be fixed with bolts.

As described above, the water jetting means 16 is fixed to the downstream side rotating shaft 17b and moves up and down together with the downstream side rotating shaft 17b of the conveyor 14a according to the thickness of the fish. At the time of exit, the distance between the upper surface (scale) of the fish and the nozzle tip of the water jetting means 16 is constant regardless of the thickness of the fish.

When the fish enters under the conveyor 14b, the lower surface (scale) of the fish body is fixed to the upper and lower conveyors 14'a,
Since it moves along the surface of 14'b, the water jetting means 1
Even if 6'is a fixed type, the lower surface of the fish body and the nozzle 22,
It goes without saying that the distance from the tip of 24 is always constant.

Also in this case, as shown in FIG. 3, since the conveyor 14b moves up and down according to the thickness of the fish,
It is possible to cope with large fluctuations in the thickness of the fish body.

The water jetting means 16 and 16 'are arranged close to each other in the fish transport direction so as to jet water onto the scales of fish continuously in two or more stages.
It consists of 2 and 24. Regarding the water jetting means 16, 16 ', see Japanese Patent Application No. 62-76064.

It is preferable that the water jet nozzles 22 and 24 jet water in a water knife shape so as to hit the scales of the fish. Usually, the water injection nozzles 22 and 24 are arranged so that the injection water has an injection angle of 45 to 60 °, and the water pressure supplied to the water injection nozzles 22 and 24 is 17 to
It is 18 kg / cm ² .

The scale peeled off by the water jet as described above is received by the chute 28 together with the water. Further, since the water receiver 32 having the net basket 30 is installed under the outlet 28a of the chute 28, the water after the scales are removed by the net basket 30 can be flowed to the sewage through the conduit 34.

In operation of the present invention, a group of similar fish is placed between the conveyor means 14, 14 ', as indicated by arrow A, and the scale-removed fish is conveyed through the conveyor means 14, 14' by arrow A '. Come out like. Then, after processing the group of fishes, it is not necessary to adjust the height of the water injection nozzles 22 and 24 located above the fishes when inserting different kinds of fishes having different thicknesses into the receiving port.

[0031]

Since the present invention is constructed as described above, the distance between the surface of the fish body and the jet nozzle of the water jetting means is kept constant, so that even various types of fish having different thicknesses can be obtained. Scales are removed uniformly without adjusting the height of the water jetting means.

[Brief description of drawings]

FIG. 1 is a schematic front view of an embodiment of a scaler that employs the present invention.

FIG. 2 is a schematic front view showing a state in which a movable conveyer with water jetting means moves according to the thickness of a fish in the scale of FIG.

FIG. 3 is a schematic front view showing a state in which a movable conveyor facing a water jetting unit moves according to the thickness of a fish body in the scaler of FIG.

[Explanation of symbols]

 10 Scale Remover 11 Caster 12 Machine Frame 14a, 14b, 14'a, 14'b Conveyor Means 15 Gap 16, 16 'Water Injection Means 17a Upstream Rotating Shaft 17b Downstream Rotating Shaft 17c Dorsal Rotating Shafts 17d, 17e Rotating Shaft 22, 24 Water injection nozzle 28 Chute 28a Outlet 30 Net cage 32 Water receiver 34 Conduit

Claims (3)

[Claims] 1. A fish scaler comprising at least two conveyors for sandwiching and transporting fish to be scaled, and water jetting means for jetting water toward the scales of the fish.
At least one of the two conveyors is movable in the thickness direction of the fish so that the distance between the conveyors can be changed according to the thickness of the fish, and the water injection means injects water of a predetermined pressure on the scales of the fish. And a water jetting device, wherein the water jetting means is movable together with the at least one conveyor so that the relative position of the water jetting means is constant. 2. The at least two conveyors are arranged vertically, the lower conveyor is fixed, and the upper conveyor is movable in the thickness direction of the fish body according to the thickness of the fish body. 3. The fish scaler according to claim 1, wherein the fish scale is movable together with the upper conveyor so that a relative position with respect to the upper conveyor is constant. 3. The fish is conveyed by a conveyor means composed of a plurality of upper and lower conveyors arranged in the conveying direction of the fish to be scaled, and at least the gap between the conveyor and the upper conveyor lined up in the fish conveying direction. One of the water jetting means is arranged together with the conveyor adjacent to the upstream side so that the relative position of the water jetting means to the conveyor adjacent to the upstream side in the fish transport direction is constant with respect to the water jetting means. The fish scaler according to claim 1, wherein the scaler is movable.