JPH0356699B2 - - Google Patents

Description

[Detailed description of the invention] Industrial applications TECHNICAL FIELD The present invention relates to an apparatus for removing meat and blood from a fish body.

Prior Art In many types of fish, there is an oily layer called subcutaneous fat on the inner side of the epidermis of the fish body, and further inside the oily layer is reddish meat called blood meat. . This blood meat rots more easily than normal meat, and it doesn't taste as good when eaten. Therefore, when using fish meat for fish paste products such as kamaboko, it has been conventional practice to remove this blood-combined meat. At the joint between the blood meat and normal meat, which occupies most of the fish body, there is a thin layer made of a different tissue from other parts, and the blood meat and normal meat can be easily separated.

FIG. 9 shows a conventional fish body blood and meat removal device 1.
FIG. The blood and meat removing device 1 is provided with a pair of pressing members 2 and 3 formed in the shape of rollers, and recesses 4 and 5 are formed on the outer peripheral surfaces of the pressing members 2 and 3 over the entire circumference. . The pressing members 2 and 3 are rotationally driven by gears 6, 7, and 8 around the axes of rotating shafts 9 and 10 in mutually opposite directions. The fish body 11 with its head and tail cut off is guided by a guide member (not shown) into the gap 12 formed in a substantially elliptical shape by the recesses 4 and 5, and is guided by the rotation of the pressing members 2 and 3. It gets pinched and pressed. Therefore, as shown in FIG. 10, the normal flesh part 13 of the fish body 11
is pushed outward.

Problems to be Solved by the Invention In the above-mentioned prior art, since the surface of the fish body is slimy, when the fish body is pinched by the pressing members 2 and 3, the fish body shifts sideways and does not move to the desired position within the gap 12. It cannot be pinched. If you press the fish body in such a sideways state, the blood and meat will mix with the normal meat. Therefore, the yield of blood and meat removal decreases. In addition, in the above-mentioned prior art, the fish body subjected to the blood and flesh removal process is only incised on the abdominal side, and therefore, it is difficult to efficiently extrude the normal flesh from both the abdominal side and the dorsal side. ,
The pressing force of the pressing members 2 and 3 against the fish body must be extremely large. Therefore, the driving force of the pressing members 2 and 3 must be increased, resulting in an increase in the size of the device.

The purpose of the present invention is to solve the above-mentioned problems, and to improve the quality of the fish by removing blood and meat from the fish reliably with a relatively small pressing force without causing the fish to shift sideways or escape when the fish is caught. To provide a fish body blood and meat removing device capable of obtaining improved fish meat.

Means for Solving the Problems The present invention provides a blood and meat removal device for a fish body that removes blood and meat by incising the abdomen in the longitudinal direction and transporting the fish body with the head cut off. a pair of endless conveyance chains for conveying the fish body along the conveyance chain; a plurality of clamping members having a pair of fish body clamping surfaces and arranged in parallel to the conveyance chain; a recess that clamps the central part of the fish's abdomen in the longitudinal direction; a plurality of locking needles that are provided on mounting surfaces on both sides of the recess and that lock both longitudinal sides of the fish; and a plurality of locking needles that are provided along the conveyance path. , a pressing member for urging and pressing the opposing clamping surfaces of the clamping member toward each other, and means for incising the back of the fish body on the upstream side of the pressing member with respect to the conveyance path. This is a device for removing meat and blood from a fish body.

Effect According to the present invention, when a fish body is supplied to the starting end side of the conveyance chain, the longitudinal center portion of the fish body is clamped in the recess in the center of the opposing clamping surfaces of the clamping member fixed to the conveyance chain. be done. At this time, since a plurality of locking needles are provided on the mounting surfaces on both longitudinal sides of the clamping surface, the fish body can be held by the locking needles without crushing the normal flesh and blood meat of the fish being fed. This prevents the fish from shifting laterally, and the fish body is reliably locked by the locking hook. In this manner, the fish body is transported by the traveling drive of the transport chain. During this conveyance, the back portion is cut open by the cutting means, and the opposing clamping surfaces of the clamping members are pressed in a direction toward each other by the pressing member. As a result, the so-called normal meat with white flesh of the fish body is pushed outward from the abdominal side and dorsal side via the holding member, and the so-called blood meat with a red flesh remains entangled with the bones of the fish body in the recess. do. In this way, the blood and meat can be efficiently removed.

Embodiment FIG. 1 shows a blood and meat removing device 2 according to an embodiment of the present invention.
FIG. A pair of endless conveyor chains 2
1a and 21b are stretched around the sprocket wheels 23a and 23b on the starting end side and the sprocket wheels 24a and 24b on the terminal end side. Sprocket wheels 23a, 23b; 24a, 24
b has a horizontal axis of rotation. The sprocket wheels 23a, 23b are driven to rotate in the direction of the arrow by a motor (not shown), thereby driving the conveyor chains 21a, 21b to run at substantially the same speed. In the transport chains 21a and 21b, the fish F
A plurality of clamping members 25a, 25b for clamping
are arranged close to each other and in parallel. When the fish F is supplied from the starting end side, it is held between the holding members 25a and 25b, and is transported along the transport direction A by the transport chains 21a and 21b.

The blood and meat removal device 20 includes a rotary round blade 26 for cutting the back of the fish F along the transport direction A.
and pressing members 27a, 27b which are provided along the transport path of the fish F and urge the opposing holding members 25a, 25b toward each other. The rotary round blade 26 is provided to cut the epidermis on the back of the fish F, and has a rotation axis in a direction perpendicular to the transport direction A.

FIG. 2 is a partially enlarged side view of the vicinity of the holding members 25a, 25b attached to the conveyance chains 21a, 21b, and FIG. 3 is an exploded perspective view thereof. The holding members 25a and 25b are made of soft synthetic resin,
The mutually opposing surfaces are clamping surfaces 30a, 3 that clamp the fish body.
Configure 0b. The clamping surface 30a includes the clamping surface 30a.
A recess 32a is formed in the center in the longitudinal direction of a to sandwich the center in the longitudinal direction of the abdomen of the fish F, and
A plurality of locking needles 31 lock both sides of the abdomen of the fish F in the longitudinal direction on the mounting surfaces 33a on both sides of the recess 32a.
will be established. The other clamping member 25b also has the same configuration as the clamping member 25a, and corresponding parts are indicated with a suffix b. Holding members 25a, 25
b is attached to the conveyor chains 21a, 21b by screws 35 via attachment pieces 34.

Note that the holding members 25a and 25b are connected to the conveying chain 21.
a, 21b, instead of using the mounting pieces 34 and screws 35 shown in FIG. 3, other configurations may be used.

The blood and meat removing operation of the blood and meat removal device 20 having such a configuration will be explained. The head of the fish F has been cut off and the abdomen incised in advance, and these operations are performed by other processing devices. The fish F is oriented in advance and carried into the apparatus 20 so that its dorsal and ventral surfaces are approximately horizontal. As shown in FIG. 4, the surface of the fish F carried in is locked by a locking needle 31, and is held between holding surfaces 30a and 30b.

Clamping surfaces 30a, 30 of clamping members 25a, 25b
The epidermis 35 on the back of the fish F held by the fish body F is incised by the rotary round blade 26, as shown in FIG. When the fish F is further transported in this state, the pressing members 27a, 2 are pressed as shown in FIG.
7b urges the conveying chains 21a and 21b in the direction toward each other, the fish F is held close to the clamping surface 30.
a, 30b. At this time, as explained in the prior art section, the normal flesh part 36 of the fish body F
In order to easily separate the flesh and blood portion 36b,
The normal flesh part 36a that occupies most of the fish body F is
As shown in Figure 6, it is pushed outward from the abdomen and back sides. Since the back part is incised in advance by the rotary round blade 26, even if the pressing force of the clamping surfaces 30a, 30b against the fish body F is relatively small, the normal flesh part 36a can be sufficiently pushed out. Furthermore, the clamping surfaces 30a and 30b have a recess 33 in the center in the longitudinal direction.
a, 33b, the blood-combined portion 36b attached to the epidermis near the midbone is not completely crushed, and the blood-combined portion 36b is prevented from being pushed out together with the normal meat portion 36a. Therefore, the normal meat part 36a and the bloody meat part 36b can be separated more effectively.
By separating them, only the normal flesh portion 36a can be taken out.

The normal flesh portion 36 pushed outward as described above
a falls and is stored in a receiving tray 40 installed below the conveyance chain 21b. holding member 25a,
The epidermis 35, blood and flesh part 36b, and backbone 36c that are still being held between the holding surfaces 30a and 30b
The tray 41 (first
(see figure). In this way, only the normal flesh portion 36a can be taken out from the fish body F. Note that brushes may be provided on both sides of the conveyance path for scraping off the normal flesh portion 36a. Furthermore, in the above-mentioned embodiment, the fish body F is held and transported in the horizontal direction by the holding members 25a and 25b, but the present invention is not limited thereto, and the fish body F is held and transported in the vertical direction. It goes without saying that such a configuration is also included in the spirit of the present invention.

FIG. 8 is a plan view of a fish processing device 61 including a blood and meat removing device 60 according to the present invention. The blood and meat removal device 60 used in this embodiment is configured to grip and transport the fish body F in the left and right directions. The fish F is mounted on a conveyor belt 62 whose conveyance surface is horizontal and conveyed in the direction of arrow A10. In addition, the head of the fish F is cut off by a rotating round blade 64 for cutting the head in the head cutting device 63.
It falls into chute 65. The fish F that has fallen into the chute 65 is held between the holding members 25a and 25b in an upright state with its abdomen facing downward and its back upward, and is transported in the direction of arrow A11 according to the traveling drive of the transport chains 21a and 21b. be done. Thereafter, the abdomen of the fish F is incised by a rotary abdominal cutter 69 in the abdominal black skin removal device 68, the internal organs and black skin are removed by the gutting pulley 70, and the blood and meat removal device 60 removes the internal organs and black skin. Blood and flesh removal processing is performed. In this way, the fish body processing device 61 automatically performs a series of processes from head cutting to blood and meat removal.

In the embodiment described above, the locking needle 31 is attached to the clamping member 25.
Although it was provided in both a and 25b, it may be provided in either one.

For reference, in the above-mentioned embodiment, the transport chains 21a and 21b and the transport chain 2
Holding members 25a, 25 fixed to 1a, 21b
b is used, but instead of this, the fish F may be held between conveyor belts. However, in this case, for example, when the fish F is relatively large, a large frictional force acts between the fish F and the clamping surface of the conveyor belt, which causes the conveyor belt to extend unevenly. This causes a so-called "shiyakuri" phenomenon in which the fish F is intermittently transported. However, in this embodiment, since the holding members 25a, 25b and the conveying chains 21a, 21b made of synthetic resin are used, the fish body can be smoothly removed while performing the blood-combining and meat-removing operation without causing the above-mentioned clumping phenomenon. It can be transported.

Effects As described above, according to the present invention, since the recess is provided in the longitudinal center of the fish body holding surface and the locking needles are provided on both sides of the recess, the blood-meat area is crushed and the blood-meat area is separated from the normal blood-meat area. By fixing it integrally with the meat part, it is possible to prevent the blood-combined meat part from being pushed out together with the normal meat part, and furthermore, the locking needle can prevent the fish body from shifting laterally.

Furthermore, since the dorsal part of the fish body is incised before the blood and flesh removal process, the blood and flesh can be reliably removed with a small pressing force.

[Brief explanation of drawings]

FIG. 1 shows a blood and meat removing device 2 according to an embodiment of the present invention.
0, FIG. 2 is a partially enlarged side view of the holding members 25a, 25b, and FIG. 3 is a side view of the holding members 25a, 25.
Fig. 4 is a perspective view showing a state in which the fish body F is locked by the locking needle 31, Fig. 5 is a sectional view taken from the cutting plane line - in Fig. 1, Fig. 6 is an exploded perspective view of Fig. The figure is a sectional view taken from the cutting plane line - of Fig. 1, Fig. 7 is a sectional view taken from the cutting plane line - of Fig. 1, and Fig. 8 is a sectional view taken from the cutting plane line - of Fig. 1.
The figure is a plan view of a fish body processing device 61 including a blood and meat removing device 60 according to the present invention, FIG. 9 is a sectional view of a conventional blood and meat removing device 1, and FIG. 10 is a blood and meat removal with a fish body F sandwiched between them. 1 is a sectional view of a main part of the device 1. FIG. 20... Blood and flesh removing device, 21a, 21b...
Conveyance chain, 23a, 23b; 24a, 24b...
... Sprocket wheel, 25a, 25b... Holding member, 26... Rotating round blade for back incision, 27a,
27b...pressing member, 30a, 30b...clipping surface, 31...locking needle, 32a, 32b...attachment surface, 33a, 33b...recess, 36a...normal flesh part, 36b...blood and flesh part , F...Fish body, A...Transportation direction.

Claims (1)

[Scope of Claims] 1. In a fish body blood and flesh removal device that transports a fish body with its abdomen cut in the longitudinal direction and its head cut off to remove blood and flesh, the fish body is conveyed along the longitudinal direction. a pair of endless conveyance chains; a plurality of clamping members having a pair of fish body clamping surfaces and arranged in parallel on the conveyance chains; a recess that clamps the central portion; a plurality of locking needles that are provided on mounting surfaces on both sides of the recess and that lock both sides of the fish body in the longitudinal direction; A pressing member that urges and presses the opposing clamping surfaces toward each other, and a means for incising the back of the fish body on the upstream side of the pressing member with respect to the conveyance path. Fish body blood and flesh removal device.