JPH0320214B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a fish head cutting and positioning device suitably used for fish processing.

Prior Art Conventionally, in the head cutting step, which is one of the fish processing steps, the head tip position has been adjusted depending on the size of the fish because the size of the head varies depending on the size of the fish. It is. FIG. 7 is a front view of a conventional fish head cutting and positioning device 1. As shown in FIG. The head cutting positioning device 1 detects the thickness of the fish body S according to the angular displacement amount of the detection wheel 3 supported around the axis of the support shaft 2 so as to be freely angularly displaceable, and detects the thickness of the fish body S using the link mechanism 4. The plate 5 is displaced in the longitudinal direction of the fish body. Then, the detection wheel 3 is rotated around the axis of the rotating shaft 6 in the direction of arrow A1, and the fish S is pushed out toward the receiving plate 5 on the left side in FIG. 7, thereby positioning the fish S.

Problems to be Solved by the Invention In the prior art as described above, the detection wheel 3 is formed in a substantially cylindrical shape, so when the thickness of the fish to be transported is large, the detection wheel 3 may bite into the fish. To prevent this, the detection wheel 3 must be set in advance in an upwardly displaced state, and if a fish whose width is narrower than the set state is transported, accurate positioning cannot be performed. It was hot.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and to provide a fish head cutting positioning device that can accurately determine the head cutting position even for small fish bodies.

Means for Solving the Problems The present invention involves loading fish bodies on a conveyor, conveying the fish bodies with their heads aligned in a direction perpendicular to the conveyance direction, and moving the fish bodies in the vertical direction according to the thickness of the fish bodies. a detection member that detects the thickness of the fish body by displacing the body; and a stopper that can freely move back and forth in the longitudinal direction of the fish body in response to the displacement, and pushes the fish body toward the stopper to determine the position of the head cut. In the fish head cutting positioning device, the detection member has a tapered shape in a direction opposite to the conveyance direction, and has a rotation axis along that direction;
It is driven to rotate around its axis, and has a plurality of engagement protrusions spirally formed on its outer peripheral surface to engage with a fish body, and the stopper is displaced via a link mechanism in response to the displacement of the detection member. A fish head cutting positioning device is characterized in that the fish body is pressed and pushed out toward the displaced stopper by rotational driving of the detection member.

Effect According to the present invention, the sensing member formed in a tapered shape is displaced in the vertical direction according to the thickness of the fish body, the stopper is displaced via the link mechanism in accordance with the displacement, and the sensing member is is rotated while being pressed, and the fish body is pushed toward the stopper.

Embodiment FIG. 1 is a simplified plan view of a fish head cutting and positioning device 10 according to an embodiment of the present invention. The head cutting positioning device 10 has a fish body F mounted on it,
It is installed horizontally above the conveyor 11 (on the near side in FIG. 1) conveying in the direction of arrow A2. A head cutting cutter 40 is provided on the downstream side of the head cutting positioning device 10 in the conveying direction.

The head cutting positioning device 10 includes a detection roller 12 as a detection member, a stopper 13, a link mechanism section 14, a weight 15 as a biasing means, and fixing members 16 and 17 for supporting the link mechanism section 14.
It consists of

FIG. 2 is a plan view of the detection roller 12, and the third
The figure is a side view of FIG. 2, and FIG. 4 is a side view showing the detailed configuration of the head cutting positioning device 10 as viewed from the left side of FIG. 1. The detection roller 12 has a rotating shaft 18, is formed in a tapered shape toward the free end in the axial direction, and has a plurality of engagement protrusions 19 spirally provided on its outer peripheral surface.

The link mechanism section 14 includes a balancing member 20 formed in a substantially "L" shape, a connecting member 21, and a swinging member 2.
2, the balancing member 20 is comprised of a detection roller 12
is rotatably supported around the axis of the rotating shaft 18, and attached to the fixed member 16 so as to be angularly displaceable around the axis of the pivot 23. In addition, the balance member 2
0, a weight 15 is attached to the opposite side of the detection roller 12 with respect to the pivot 23 via a support member 24.

The free end side end of the protruding portion 26 provided in a substantially “L” shape of the balancing member 20 is attached to one side end of the connecting member 21 and around the axis of the pivot shaft 27 so as to be freely angularly displaceable. There is. The other end of the connecting member 21 is
It is attached to one end of the swinging member 22 and around the axis of the pivot shaft 28 so as to be freely angularly displaceable. The other end of the swinging member 22 is attached to the stopper 13 so as to be angularly movable around the axis of the pivot 29 .

The swing member 22 is attached to the fixed member 17 so as to be angularly displaceable around the axis of the pivot shaft 30, and
3 is provided so as to be movable back and forth in the left-right direction in FIG. The aforementioned fixing members 16 and 17 are fixed to the base 41.

The detection roller 12 is rotationally driven in the direction of arrow A3 in FIG.
It is provided in advance at a position where it comes into contact with the vicinity of the maximum thickness. The operation of the head cutting positioning device 10 having the above configuration will be described below.

The fish bodies F are mounted on the conveyor 11 with their heads facing downward in FIG. 1 and conveyed in the direction of arrow A2 in FIG. The fish F is conveyed from the small diameter side to the large diameter side along the axial direction of the detection roller 12, and after the small diameter side end 31 of the detection roller 12 comes into contact with the fish F, the detection roller 12 transports the fish F. is guided by and displaced upward, and the large diameter end 32
The fish body F is pushed upward to a height that is the sum of the radius r1 of the fish body F and the maximum thickness X of the fish body F. When the detection roller 12 is pushed up, the balance member 20 is angularly displaced around the axis of the pivot 23 in the direction of arrow A4 in FIG. 4, and therefore the connecting member 21 is also displaced in the direction of arrow A5.
The swinging member 22 is angularly displaced around the axis of the pivot 30 in the direction of arrow A6, and the stopper 13 is displaced in the direction of arrow A7. Also at this time, the detection roller 1
2 is rotationally driven in the direction of arrow A3, so
The engaging protrusion 19 provided on the outer peripheral surface is pressed against the fish F by the weight of the detection roller 12, and the rotational pressing force pushes the fish F in the direction of arrow A8 in FIG. 4. Then, the tip of the head of the fish F comes into contact with the fish receiving surface 33 of the stopper 13 and stops.
The stopping position is such that the head cutting cutter 40 is at the fish body F.
The position is set in advance so that only the head of the person is cut off.

FIG. 5 is a side view of the head cutting positioning device 10 when a small fish body F1 is transported;
The figure shows the positions at which the heads of a small fish F1 and a large fish F2 are cut. Since the detection roller 12 is rotationally driven as described above, it is slightly spaced apart from the fish mounting surface 34 of the conveyor 11 so as not to contact the fish mounting surface 34 of the conveyor 11 when the fish F is not being conveyed. It is stopped in the state where it is. The stopped state is maintained by the weight balance between the weight of the detection roller 12 and the weight of the weight 25 with the pivot 23 as a fulcrum. Therefore, as shown by line l1 in FIG. 6, the head cutting positioning device 10 of this embodiment positions the fish body F1 so that even if the fish body F1 is small, the head can be cut at an appropriate position. You can decide.

Effects of the Invention As described above, according to the present invention, the detection member has a tapered shape in the opposite direction to the conveying direction, has a rotational axis along the direction, is rotationally driven around the axis, and has its outer peripheral surface The blade has multiple engaging protrusions spirally formed to engage with the fish body, so the thickness of the fish body can be easily detected regardless of the size of the fish body, and the head can be cut at the appropriate position. At the same time, by rotationally driving the detection member, the fish body can be pressed and pushed out toward the displaced stopper, and one member can perform both the detection and pushing functions.

[Brief explanation of the drawing]

1 is a simplified plan view of a fish head cutting and positioning device 10 according to an embodiment of the present invention, FIG. 2 is a plan view of a detection roller 12, FIG. 3 is a side view of FIG. 2, and FIG. FIG.
The figure is a side view of the head cutting positioning device 10 when a small fish F1 is transported, FIG. 6 is a diagram showing the head cutting positions of a small fish F1 and a large fish F2, and FIG. 7 is a conventional fish body. FIG. 2 is a front view of the head cutting positioning device 1 of FIG. 10... Head cutting positioning device, 11... Conveyor, 12... Detection roller, 13... Stopper,
14... Link mechanism section, 15... Weight, 16,1
7... Fixed member, 18... Rotating shaft, 19... Engaging protrusion, 20... Balance member, 21... Connecting member, 2
2... Swinging member, 23, 27, 28, 29, 30
... Pivot, 24 ... Support member, 26 ... Projection part,
31...Small diameter side end, 32...Large diameter side end, 33
...receiving surface, 34...mounting surface.

Claims (1)

[Claims] 1. A fish body is placed on a conveyor, and the fish body is conveyed with its head aligned in a direction perpendicular to the conveyance direction, and the fish body is displaced vertically according to the thickness of the fish body. A fish body comprising: a detection member for detecting the wall thickness of the body; and a stopper capable of reciprocating in the longitudinal direction of the fish body in response to the displacement, the fish body being pushed toward the stopper to align the head cutting position. In the head cutting positioning device, the detection member has a tapered shape in a direction opposite to the conveyance direction and has a rotation axis along that direction,
It is driven to rotate around its axis, and has a plurality of engagement protrusions spirally formed on its outer peripheral surface to engage with a fish body, and the stopper is displaced via a link mechanism in response to the displacement of the detection member. 2. A fish head cutting positioning device, characterized in that the fish body is pressed and pushed out toward the displaced stopper by rotational driving of the detection member.