Device for cutting and separating part around cartilage

Abstract

To provide a technique for stably cutting and separating a part around cartilage from a salmon head that has already been cut off.SOLUTION: A device 1 for cutting and separating a part around cartilage which cuts and separates a part around cartilage from a salmon head that has been cut off, includes: a skewer 112 that is sequentially transferred at a constant height substantially parallel to a placement plate 121 on which the head is placed and is inserted into a lower jaw by pushing into a head cut surface; a fixing table 114 that is disposed on the downstream side of the placement plate 121, is at a position lower than the skewer 112 by a predetermined interval, and fixes the head in a sideways posture when the skewer 112 reaches an upper position; an L-shaped blade 21 that moves up and down from above the fixing table 114 to cut the part around cartilage; and a drive table 12 that sequentially circulates the skewer 112 by intermittent driving such that the skewer that has reached the placement plate 121 subsequently moves toward the fixing table 114 side and the skewer that has reached the fixing table 114 subsequently moves toward the placement plate 121 side.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an apparatus for cutting and separating the ice heads of salmon, and more particularly to an apparatus for completely cutting and separating the ice heads from the heads of salmon that have already been removed. [Background technology]

[0002] The salmon head has a "hito-tama" (salmon head), which is traditionally eaten as a namasu (seafood dish). When cutting salmon into fillets, if the salmon is whole, the body can be fixed in place, allowing the "hito-tama" (salmon head) to be steadily removed (after which it can be filleted). On the other hand, if the head is dropped first, the head is not held stably, making it difficult to separate the ice head by mechanical cutting. Furthermore, when transporting cut heads to a processing plant where the ice heads are processed, the ratio of ice heads to heads is small, and there was a demand for volume reduction from the perspective of transportation costs. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2005-80561 Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention has been made in consideration of the above, and aims to provide a technique for stably separating and cutting the salmon head and its surrounding area from the salmon head that has already been cut off. [Means for solving the problem]

[0005] The ice head cutting and separation device described in claim 1 is an ice head cutting and separation device that cuts and separates the ice head from the head of a salmon that has been cut off, and is characterized by comprising: a skewer body that is transported sequentially at a constant height approximately parallel to the loading platform on which the head is placed, and which pushes the cut surface of the head into the lower jaw; a fixed platform that is arranged downstream from the loading platform and is located a predetermined distance lower than the skewer body, and which fixes the head in a horizontal position when the skewer body reaches the air; a cutting blade that rises and falls from above the fixed platform and cuts the ice head; and a transport means that circulates the skewers sequentially by intermittent drive, with those that reach the loading platform then moving toward the fixed platform, and those that reach the fixed platform then moving toward the loading platform.

[0006] In other words, the invention of claim 1 does not require the skewer to be inserted into the salmon's mouth, but rather inserts the skewer into the salmon's tongue or lower jaw to stabilize its posture, thereby enabling the area around the head of the salmon to be completely separated and cut.

[0007] A cut-off salmon head refers to a head that has been cut into slices approximately perpendicular to the direction of the spine, and usually refers to a head that has been cut off slightly behind the gill covers (towards the pectoral fin), but it may also include a head that has been cut off at a slight angle behind the pectoral fin or behind the pelvic fin, as appropriate. "Inserting the skewers by pushing the cut surface of the head" means inserting the skewers symmetrically from the cut surface toward the mouth. The skewers are preferably long enough to penetrate the tongue or sublingual area. The skewers may be pushed in by a separate pusher with the head held upright, or by the operator. "Fixing on a fixing table" is a broad term that refers to positioning. If the salmon is held in a horizontal position by the fixing table, the skewer, and the thickness of the salmon, and the head does not slip around the skewer or shift significantly when the cutting blade is being used, then this is considered "fixed." To prevent the cutting blade from interfering with the fixing base, a hole or slit may be formed in the fixing base, and the cutting blade may pass through the hole or slit. For example, the conveyance may be performed using an endless belt on which skewers are affixed at equal intervals. The area around the ice head may refer to the ice head itself, or may include the surrounding flesh and bones. The design can be adjusted based on the positioning and blade shape.

[0008] The ice head cutting and separation device described in claim 2 is characterized in that, in the ice head cutting and separation device described in claim 1, it is equipped with an interference body that is arranged downstream from the fixed base and interferes with the remaining head as it is transported, thereby removing the head from the skewer body.

[0009] That is, the invention according to claim 2 enables the head to be removed without requiring a separate drive system, thereby simplifying the device configuration.

[0010] The ice head cutting and separating device described in claim 3 is characterized in that, in the ice head cutting and separating device described in claim 1, the cutting blade is formed in an approximately L shape when viewed from the lifting direction, and the blades on each side are formed with an inverted V-shape inclination.

[0011] In other words, the invention of claim 3 achieves stable cutting by using a blade that holds slimy, unstable salmon from the outside. Depending on the specifications, it can also be configured like a saw blade with multiple inverted V-shapes connected together, rather than a single inverted V-shape. The blade on each side refers to the blade length direction, not the thickness direction. The L-shape seen from the lifting direction can also be rephrased as the L-shape seen from a plan view.

[0012] The ice head cutting and separating device according to claim 4 is characterized in that, in the cutting and separating device according to claim 1, 2 or 3, the skewers are arranged rotationally symmetrically on the same circumference with their tips facing outward.

[0013] That is, the invention according to claim 4 allows the device to be simplified and made compact. An example of a rotationally symmetric arrangement is to attach skewers to a disk, which allows transportation by axial rotation alone without using a structure such as an endless belt. Examples of rotational symmetry include 90° rotational symmetry (four skewers), 60° rotational symmetry (six skewers), and 45° rotational symmetry (eight skewers). [Effects of the Invention]

[0014] According to the present invention, a technique can be provided for stably separating and cutting the salmon head and surrounding area from the salmon head that has already been cut off. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a schematic plan view of a cutting device according to the present invention; [Figure 2] 1 is a schematic front view of a cutting device according to the present invention; [Figure 3] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0016] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Hereinafter, the ice head cutting and separating device of the present invention will be simply referred to as a cutting device. Fig. 1 is a schematic plan view of the cutting device of the present invention, Fig. 2 is a schematic front view of the cutting device of the present invention, and Fig. 3 is a schematic configuration diagram showing cutting around the ice head. For ease of explanation, FIG. 2 shows only the skewer 112, the stop plate 113 and the salmon head portion located on the fixed base 114 opposite the mounting plate 121. In addition, the abutment plate 113 and the disk body 111 are not shown in FIG.

[0017] The cutting device 1 mainly comprises a rotating unit 10 and a cutting unit 20. The rotating part 10 is composed of a skewer disc 11 into which the salmon heads are inserted one by one and which cuts the ice around the head, and a drive table 12 which rotates the skewer disc 11.

[0018] The skewer disc 11 has a shape in which eight skewers 112, each 18 cm long and 15 mm thick at their maximum, each formed in a sharp cone shape with a tip, are planted at 45° rotational symmetry on a disc 111 with a diameter of 50 cm. At the base end of the skewers 112, abutment plates 113 are formed to rise from the disc 111. The abutment plates 113 abut the cut surface of the salmon head and position the skewers 112 in the direction of insertion. The disc 111, skewers 112 and abutment plates 113 are all made of stainless steel.

[0019] The center of the skewer disc 11 is attached to a shaft extending from a drive base 12. This shaft is rotated intermittently by a drive motor (not shown), causing the skewer disc 11 to rotate 45° at a time.

[0020] Furthermore, a mounting plate 121 is formed in one position on the drive table 12, parallel to the skewer 112, for inserting the salmon head in a vertical position (with the top of the head facing up, the lower jaw facing down, and the oral cavity roughly parallel). The cut salmon heads are roughly the same size, and in this embodiment, the distance between the skewer 112 and the mounting plate 121 is 2 cm. With this distance, when the salmon head is pushed vertically onto the skewer 112 from the cut surface side, the skewer 112 comes out just below the tongue of the salmon, which increases the positional stability of the salmon head during cutting, as will be described later (on the other hand, if the distance was such that the skewer 112 would pass through the oral cavity, the head would rotate freely, resulting in uneven cutting). Furthermore, a side plate 122 is formed to rise on the upstream side of the placing plate 121, making it easier to position the salmon head when pushing it in with the head upright.

[0021] The cut around the ice head is made on the opposite side of this insertion point. The head pierced by the skewer 112 is rotated and transported with the head facing downstream or on its back with the head facing downwards, due to the relationship between the center of gravity and the intermittent drive. On the drive table 12, on the opposite side of the insertion position, a flat fixed base 114 is formed parallel to the skewer 112 and at a predetermined lower height. In this embodiment, this distance is 3 cm. With this distance, the transferred head will vary in position after it leaves the mounting plate 121, but once the skewer 112 reaches the air above the fixed base 114, it will be stably held in a horizontal position with the brain facing downstream. Furthermore, on the upstream side of the fixed base 114, a slanted guide plate 115 is formed to guide the salmon head so that it faces the brain upstream and the lower jaw downstream.

[0022] After cutting the ice around the head, the remaining part of the skewer 112 is removed at a position 270° (3 / 4 rotation) from the insertion position. As shown in Figure 1, the drive table 12 has an interference plate 116 formed in an arc from the inside to the outside, and as the salmon head remains stuck on the skewer 112, it interferes with the interference plate 116 and is pushed outward as it rotates, eventually detaching from the skewer 112.

[0023] As described above, the rotating unit 10 circulates the eight skewers 112 in order, with those that reach the mounting plate 121 then moving to the fixed base 114 side, and those that reach the fixed base 114 then moving to the mounting plate 121 side.

[0024] Next, the cutting section 20 will be described. The cutting unit 20 is composed of an L-shaped blade 21 that punches from the head to the periphery of the ice head, and an elevator unit 22 that raises and lowers the L-shaped blade 21.

[0025] The L-shaped blade 21 is an L-shaped blade when viewed from the ascending / descending direction (vertical direction). As shown in Figure 3, each side of the L-shaped blade 21 is in an inverted V shape, which improves cutting stability. In other words, if the blade were V-shaped, there is a possibility that the tip of the blade would slip and become misaligned when it comes into contact with the head, but the inverted V shape makes two-point contact from the outside, preventing the head from slipping away. In this embodiment, the lower jaw reaches the fixed base 114 and is positioned, but the top of the head is a free end, and the L-shaped blade 21 can be swung through to cut around the head in one go without interfering with the fixed base 114. Depending on the specification, an L-shaped slit can be provided in the fixed base 114, and the L-shaped blade 21 can be swung all the way down. The cut ice head is then dropped down a slope (not shown) into a collection box.

[0026] The lifting unit 22 lifts and lowers the L-shaped blade 21. The lifting unit 22 lifts and lowers the L-shaped blade 21 in synchronization with the intermittent driving of the drive table 12, while the skewer disc 11 is stopped.

[0027] As explained above, the cutting device 1 of the present invention can stably hold salmon heads that have been pre-cut and are not stable to hold, with a simple configuration, and accurately separate and cut the area around the frozen head. This allows for mechanization and volume reduction, making it possible to steadily and inexpensively supply frozen head products. [Industrial Applicability]

[0028] Since the size of salmon heads is almost constant, it is possible to increase yield by adjusting the shape of the L-shaped blade (it does not necessarily have to be at a right angle) and the position of the base and blade. [Explanation of symbols]

[0029] 1 cutting device 10 Rotating part 11 Skewer disc 111 Disk 112 Sashikushi 113 Stop plate 114 Fixed stand 115 Guide plate 116 Interference Plate 12 Drive stand 121 Loading plate 122 Side plate 20 Cut section 21 L-shaped blade 22 Lifting section

Claims

1. An ice head cutting and separating device for cutting and separating the ice head from the cut salmon head, A skewer is sequentially transferred at a constant height substantially parallel to the table on which the head is placed, and the cut surface of the head is pushed in to pierce the mandible; a fixing base disposed downstream of the mounting base, positioned a predetermined distance lower than the skewer body, and fixing the head of the skewer body in a horizontal position when the skewer body reaches the air; A cutting blade that rises and falls from above the fixed base and cuts around the ice head, a transfer means for intermittently driving the skewers to circulate them in sequence, with the skewers that have reached the placement table then being moved to the fixed table side, and the skewers that have reached the fixed table then being moved to the placement table side; An ice head cutting and separating device comprising:

2. The ice head cutting and separation device as described in claim 1, characterized in that it is equipped with an interference body that is arranged downstream from the fixed base and interferes with the remaining head as it is transported, thereby removing the head from the skewer body.

3. An ice head cutting and separating device as described in claim 1, characterized in that the cutting blade is formed in an approximately L shape when viewed from the lifting direction, and the blade on each side is formed with an inverted V-shape inclination.

4. 4. The ice head cutting and separating device according to claim 1, 2 or 3, wherein the skewers are arranged rotationally symmetrically on the same circumference with their tips facing outward.

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