JPS6021973Y2 - Three-piece fish unloading device - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a device for removing three pieces of fish.

For example, as shown in FIG. 1, a conventional three-piece fish unloading device has a fish rail 2 installed at the lower end of a pair of left and right conveyor belts 1 whose forward and backward surfaces face each other and run horizontally. A fish body from which the head has been removed is transported, for example, with the head at the beginning, and in order to unload three fish bodies, a fillet knife 3 consisting of a pair of left and right rotating knives is provided. A bone blocking member 4 is provided, and parts of the pair of left and right fillets, which have been removed by the fillet knife 3, are conveyed forward through the outside of the fillet knife 3, and the midbone portion (including the caudal fin and dorsal fin) is blocked by the midbone. Part 4
The object was hit by the object, causing it to fall downward.

In such a conventional device, the diameter of the fillet knife 3 is usually small, about half the length L of the fish body, in order to avoid increasing the size of the entire device, and the backbone blocking member 4 is a cast product. Its cross-sectional shape was a rectangle or a similar shape as shown in A, and the backbone portion that passed through the fillet knife immediately collided with the backbone blocking member 4 and changed its direction of movement downward.

Therefore, when the fish body is transported as shown in the figure and cut into three pieces by the fillet knife, and the backbone portion hits the backbone blocking member 4, the rear half of the fish body is still held by the conveyor belt and is subjected to the force in the advancing direction. This has the disadvantage that the fish body may twist and the fillet may become loose.

The present invention was devised based on the discovery of the above-mentioned drawbacks, and the object is to provide an improved three-fish unloading device that can perform accurate three-fish unloading processing without applying excessive force to the fish body. .

In the device of the present invention, a pair of fillet knives consisting of rotating knives are installed between a pair of left and right conveyor belts whose traveling surfaces run opposite to each other, and the fish body being conveyed while being held by the belts is transferred to the fillet knife. In a device that uses a knife to cut the fish into three pieces, the rear edge opens close to the front edge of the fillet knife to accommodate the middle bone of the three pieces of fish, closes from the upper edge to the front edge, and the rear edge opens downward. The fillet knife is characterized in that a knife cover is provided in front of the fillet knife, and the length from the front edge to the rear edge is approximately the length of the middle bone of a fish body.

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

Figure 2 is a side view of the embodiment of the present invention with the front conveyor belt removed; Figure 3 is a plan view of the embodiment of the invention;
The figure is a sectional view taken along line IV-IV in FIG. 3.

The pair of left and right conveyor belts 1A, the IB1 fish rail 2, and the pair of left and right fillet knives 3A and 3B are the same as those in the conventional example shown in FIG.

A knife cover 6 is fixed to a support member 5 fixed to the front lower part of the fillet knife.

This knife cover 6 is shaped like a bird's hat and is made up of left-right symmetrical plates joined together, and the rear edge 61 is attached to the fillet knives 3A and 3.
It opens in a triangular shape so that the middle bones of the three fish bodies inserted close to the front edge of B are closed from the upper edge 62 to the front edge 63, and the lower edge 64 opens downward, and the lower end of the front edge 63 is closed. portion is fixed to the support member 5.

The size of this knife cover 6 is from the rear edge 61 to the front edge 63.
The length up to this point is about the length of the midbone of the fish body.

The knife cover 6 having such a shape is constructed by joining or simply contacting a pair of left and right sheet metals, or by integrally molding a cast product or a plastic molded product.

According to the present invention, a bosom part is formed that closes from the upper edge to the front edge, and from the rear edge to the lower edge through which the fish bone part comes out, and the length from the front edge to the rear edge is the same as the length of the middle bone of the fish body. Because it is so long, when the mid-bone part of the fish body, which has been removed in three pieces by the fillet knife, enters through the opening at the rear edge, there is nothing to prevent the mid-bone part from moving forward, so force is applied to the fish body. It is possible to perform accurate three-piece wholesale processing without having to do so.

[Brief explanation of the drawing]

FIG. 1 is a side view showing a conventional example, FIGS. 2 to 4 are views showing an embodiment of the present invention, FIG. 2 is a side view, FIG. 3 is a plan view, and FIG. FIG. 3 is a sectional view taken along IV-IV in FIG. 3; IA, IB...Transportation belt, 3A, 3B...
... Fillet knife, 6 ... Knife cover 61 ... Rear edge, 62 ... Upper edge, 63
・・・・・・ Leading edge.

Claims (1)

[Scope of utility model registration request] A pair of fillet knives consisting of rotating knives are installed between a pair of left and right conveyor belts whose forward surfaces run opposite to each other, and the fish bodies conveyed by the belts are cut into three pieces by the fillet knives. , the rear edge is close to the front edge of the fillet knife, and the opening is closed from the upper edge of the waist to the front edge so that the middle bones of three fish bodies can be inserted, and the rear edge opens downward, and from the front edge to the A device for removing three pieces of fish, characterized in that a knife cover whose length to the rear edge is approximately the length of the middle bone of the fish is provided in front of the fillet knife.