JPS6033455B2 - Fish skin stripping device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fish skin peeling device, and is particularly suitable for softening and peeling fish skins such as mackerel and sardines to the same degree as fish meat.

Recently, there has been an increasing demand for actively utilizing blue-backed fish such as mackerel and sardines for meat such as kamaboko. In order to process such fish for kamaboko, etc., it is necessary to remove the subcutaneous fat layer, which deteriorates quickly, as well as the blue outer skin. However, conventional fish skinning devices can only be applied to fish with relatively hard skins, such as flounder and pollack. Even if only a portion of the skin peeled off, most of the skin was left behind in the fish meat, making it completely impractical. in this way,
There is no known peeling device suitable for removing the skin of mackerel, sardines, etc., or for fish. The present invention has been made in response to the above-mentioned needs, and the first object of the present invention is to provide an apparatus for completely shaping and rigidizing the epidermal layer and subcutaneous fat layer of fish. be.

A second object of the present invention is to provide a device that requires a small installation area and can be manufactured at low cost. Hereinafter, the present invention will be explained based on drawings of embodiments. FIG. 1 is a perspective view of an embodiment of the present invention, and FIG. 2 is a sectional view of the main parts seen from the side.
FIG. 3 is a cross-sectional view of the main parts seen from the front (in the direction of movement of the fish body).

The rotating drum is, for example, a cylindrical rotating body supported by a ball bearing joined to a fixed shaft 2, and the circumferential body 4 is formed with a large number of through holes 5...5. The outer surface and the inner surface of the circumferential body communicate with each other, and the rotary shaft 2 has a hole that fits inside the drum, so that the inside of the drum is suitable for a vacuum device 6 such as a vacuum pump. A gear 8 is provided on one side 7 of the rotating drum, and is rotationally driven by an electric motor (not shown) via a speed reduction mechanism. A fish supply conveyor 9 is disposed in front of the rotating drum 1, and a knife 1 for skinning is installed at a position rotated by a predetermined angle from the terminal end 10 of the conveyor 9.
1 is disposed, and a guide 12 for continuously taking out the fillet is arranged at the base of the knife 11. The distance between the cutting edge of the knife 11 and the surface of the circumferential body is set to be slightly larger than the thickness of the epidermal layer a and the subcutaneous fat layer b of the fish body G to be processed, and can be adjusted as appropriate depending on the type of fish and the like.
End machine 10 of the circular fish supply conveyor 9 of the rotating drum
The surface of the circumferential body other than from to the mounting position of the knife 11 is covered with a cover 13 to close the through hole 5.
A fish holding roller 14 is provided above the cutting edge of the knife 11 to assist in bringing the fish G into close contact with the drum surface. This holding roller 4 is attached to a common drive shaft 15, but an elastic body such as a spring is interposed between the shaft and the outer circumference of the roller, so that the center of the outer circumference of the roller can be adjusted depending on the shape of the fish. It is configured to be eccentric with respect to the axis. Next, the action will be explained.

The fish body G, which has been subjected to a three-piece unloading process in which the fish head, back bone, caudal fin, dorsal fin, internal organs, etc., have been removed, is transported from the fish body supply conveyor 9 with the skin side down, onto the cylindrical body 4 of the drum. When the fish is exposed to water, the entire surface of the fish's epidermal layer a is tightly absorbed to the surface of the perforated plate, regardless of the shape of the fish, by vacuum suction through the numerous through holes 5, as shown in Figure 3. and formatted. Cutting is performed with the knife 11 in this state, and the fish skin part S is cut and separated into the fish skin part S, which consists of the epidermal layer and the subcutaneous fat layer, and the fillet ○, which does not contain the fish skin part, and the fish skin part S reaches the cover 13. Then, the vacuum suction is cut off and it falls.
The fillet G' is taken out onto the guide 12. FIG. 4 shows a cross-sectional view of the main parts of another embodiment of the present invention, seen from the side.

The feature of this embodiment is that a vacuum chamber 21 having a fan-shaped cross section is provided on the fixed shaft 2 in the rotary drum, and the vacuum device 6 is passed through the vacuum chamber 21, and the cover 13 is omitted. The present invention is not limited to the above-mentioned embodiments, and may be carried out in other embodiments, for example, by feeding the fish with the skin facing upward onto the fish supply conveyor and disposing a rotating drum above the fish supply conveyor. can do.

According to the present invention, the fish skin including the subcutaneous fat layer of blue-backed fish such as mackerel and sardines, which have traditionally been used only as feed, can be completely removed automatically and at high speed. In addition, the amount of fish meat adhering to the fish skin can be minimized.

In addition, according to the present invention, unlike conventional fish processing machines, the longest horizontal conveyor is not used, but instead the rotating drum is used as the main component. It has become possible to perform processing under high conditions, and the cost has also been reduced. As described above, the present invention greatly contributes to the utilization of unused marine resources.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of the present invention. FIG. 2 is a side sectional view of the main part of the above embodiment, and FIG. 3 is a front sectional view of the above embodiment. FIG. 4 is a side sectional view of a main part showing another embodiment of the present invention. 1... Rotating drum, 4... Circumferential body, 5... Through hole, 6
．． ．． ．． ．． ...Vacuum device, 11...Knife. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] 1. A rotating drum with a large number of through holes drilled in its cylindrical surface,
a device for feeding fish onto the cylindrical surface; a knife whose cutting edge is attached to the cylindrical surface at a predetermined distance for skinning the fish fed onto the cylindrical surface; vacuum means for substantially creating a vacuum state inside the cylindrical surface located near the processing position, and peeling off the fish skin with the knife while the skin of the fish body is adsorbed to the outer surface of the cylindrical surface. A fish body skinning device configured as follows.