JPS6325919B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a fish head cutting device, and more particularly to a fish head cutting device suitably used as a pretreatment device for an ovary extraction device.

Prior Art Conventionally, when removing the ovary from a fish body, a device for cutting off the fish head has been used. Among such devices, there has been a desire for a device that can cut off the fish head without damaging the ovary in the fish body as much as possible.

Problems to be Solved by the Invention The purpose of the present invention is to solve the above-mentioned problems and remove the fish head by cutting off the fish head in a manner that does not damage the ovaries of cod, herring, etc., and also allows the ovaries to be removed as easily as possible. The objective is to provide a device that

Means for Solving the Problems The present invention provides a pair of first rotating members having rotational axes parallel to each other, and a pair of first rotating members that are inclined vertically adjacent to each other at an angle within 90 degrees with respect to the rotational axis and mutually a pair of second rotating members having parallel rotational axes; spanning between the first rotating member and the second rotating member;
A pair of endless bands stretched by the above-mentioned angle, which are fed to a position where a fish body with its head and tail aligned in a direction intersecting the transport direction is held between both sides near the gill cover. A cutting means is provided in the vicinity of the pair of endless bands and cuts off the fish head of a fish being conveyed while being held by the endless bands. This is a fish head cutting device.

Function The fish head cutting device according to the present invention has a fish body whose head and tail are aligned in a direction intersecting with the transport direction of the fish body, and the fish body is placed in a position where the vicinity of the gill cover is sandwiched from both sides by a pair of endless bands. Supplied. The pair of endless belts are stretched on one side in the conveyance direction over a pair of first rotating members having mutually parallel rotational axes, and on the other side in the conveyance direction with respect to the rotational axes.
The second rotary members are tilted close to each other in the vertical direction at an angle of 90 degrees or less, and are stretched over a pair of second rotary members having mutually parallel rotation axes. In other words, the endless strip is the first
It is twisted at an angle of less than 90 degrees from the rotating member side to the second rotating member side.

Therefore, the fish body supplied from the first rotating member side is held by the pair of endless bands from both sides near the lid, and as it is conveyed to the second rotating member side, the fish body is held within the above 90 degrees. Twisted in a direction close to the vertical at an angle. In this case, by selecting the head-to-tail orientation of the fish to be fed, the head side of the twisted fish can be directed vertically upward. In this state, the fish head of the fish body is cut off by the cutting means.

Even if the fish body to be cut at this time has an ovary, by twisting the fish body so that the fish head is on the vertically upward side as described above, the ovary will descend within the fish body and the fish It is in a position that will not be damaged even if the head is cut off. Further, since the fish body is opened near the fish head by the above-mentioned cutting, the ovary can be easily removed.

Example Examples of the present invention will be described below.

Figure 1 is a front view showing the outline of this embodiment, Figure 2 is a front view showing the outline of this embodiment;
The figure is a plan view thereof.

The conveyor 1 includes bucket carts 2...2 on which fish bodies F are placed laterally, and is stretched almost horizontally by a starting sprocket 3 and a terminal sprocket 4.
As shown in FIG. 2, this conveyor 1 is divided into a trunk conveyor 1a and a head conveyor 2b, with a gap between them. A pair of upper and lower clamping belts 5 and 6, which are endless belts for clamping the gill cover portions of fish bodies, are provided from the rear half of the forward path of the conveyor 1 to the rear. These clamping belts 5, 6
The axes of the starting end sprockets 7 and 8, which are the first rotating members that extend the conveyor belt, are horizontally arranged in the same way as the conveyor 1, but the axes of the ending end sprockets 9 and 10, which are the second rotating members, are It is installed vertically, and the belt can be twisted 90 degrees between them. Guide rolls 11...11 are elastically supported by the pair of clamping belts 5 and 6 so that pressing force always acts on the fish body. The rear parts of the clamping belts 5 and 6 face each other on a horizontal plane, and are designed to suspend the fish body. A rotary cutter 12 is provided in this rear half. This rotary cutter 12 has a blade surface extending in a horizontal direction, and is disposed directly below the pair of clamping belts 5 and 6. The running speeds of the conveyor 1 and the clamping belts 5 and 6 are equal. Connected to the terminal ends of the clamping belts 5 and 6 is a device for removing the ovaries, for example, a device for grasping the fishtail and transporting the fish by hanging it upside down.

Next, the action will be explained.

Fish bodies F to be processed are placed on the conveyor with their heads aligned and the bases of their pectoral fins or gill covers aligned. This is done by the preceding device or manually. Next, as shown in FIG. 3A, the clamping belts 5 and 6 clamp the area around the gill cover.
When the conveyor 1 eventually disappears, the fish body is held only by the clamping belts 5 and 6, as shown in FIG. 3B, and as the clamping belts twist, it gradually shifts to a hanging position. When the fish reaches a completely hanging posture, the ovary OV is displaced downward from its normal position due to the characteristics of the fish body. The pressing force from the clamping belt further promotes this displacement. In this state, the fish head is cut by the rotary cutter 12 as shown in FIG. 3C. After that, when the fish body (torso) becomes horizontal,
The ovary OV, which had been displaced toward the tail, returns to its normal position, and a portion of it protrudes from the cut surface, as shown in Figure D. When the fish body is suspended upside down, the amount of protrusion becomes even larger.

FIG. 4 shows a modification of the rotary cutter 12 in which two rotary cutters 13, 13 are provided in an inverted V shape. In this embodiment, the clamping belts 5, 6
The interval between the ovary and the ovary becomes larger, making it easier to handle.

As described above, in this embodiment, the fish F is held and conveyed by the holding belts 5 and 6 and twisted so that the fish head faces vertically upward. As a result, when cutting the fish head with the rotary cutter 12, the fish body F
This can be done without damaging the intraovarian OV. Furthermore, by placing the fish body F in a nearly horizontal state, a portion of the ovary OV can protrude from the cut surface, making it much easier to remove the ovary OV from the fish body F.

In each of the above embodiments, the fish F is conveyed by the conveyor 1 in a horizontally extending state as shown in FIG. 3A, and is angularly displaced to a vertically extending state as shown in FIG. 3C. Once finished, the fish head is cut off. As another configuration example of this embodiment,
Of course, the fish head may be cut while the fish body, which is angularly displaced by the clamping belts 5 and 6, is angularly displaced to a desired angle before it becomes vertical. Further, at this time, the cutter 12 is also provided to be inclined according to the degree of inclination of the fish body.

Effects As described above, according to the present invention, when transporting a fish while being held between a pair of endless bands, the posture of the fish changes from the first rotating member to the second rotating member on which the endless bands are stretched.
As it approaches the rotating member, it is gradually inclined at an angle of 90 degrees or less in a manner that approaches the vertical direction. In other words, the tail of the fish body will face vertically downward,
The ovary inside the fish body descends from its normal position. This downward displacement of the ovary is further facilitated not only by the posture of the fish body in a nearly vertical vertical direction, but also by the pressing force exerted by the endless bands that clamp the fish body near the gill cover. .

Cutting off the fish head in this condition will prevent damage to the ovary inside the fish body. By placing the fish body from which the fish head has been cut in a nearly horizontal state, for example, the ovary can partially protrude from the cut surface, making it much easier to remove the ovary from the fish body.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of the present invention, and FIG. 2 is a plan view thereof. FIG. 3 is an explanatory view of the operation of the embodiment, and FIG. 4 is a side sectional view showing another embodiment of the cutter of the present invention. 1... Conveyor, 5, 6... Pinching belt (hanging conveyance means), 12... Cutter.

Claims (1)

[Scope of Claims] 1. A pair of first rotating members having mutually parallel rotational axes; and a pair of first rotating members having mutually parallel rotational axes that are inclined in a vertically adjacent manner at an angle within 90 degrees with respect to the rotational axis. a pair of second rotating members having; and between the first rotating member and the second rotating member,
A pair of endless bands stretched by the above-mentioned angle, which are fed to a position where a fish body with its head and tail aligned in a direction intersecting the transport direction is held between both sides near the gill cover. A cutting means is provided in the vicinity of the pair of endless bands and cuts off the fish head of a fish being conveyed while being held by the endless bands. Fish head cutting device.