JP2007215423A - Cutting apparatus for fish body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fish body cutting apparatus stably conveying fish body, and imparting a uniform cutting quality. <P>SOLUTION: A frozen fish body F is pushed into a space between a pair of hand drum shaped roller 7A, B vertically movable synchronously under energization on a first conveying means 7, and conveyed by a rotatably driven second conveying means 9, a third conveying means 11 and a fourth conveying means 13. In these conveying means, the pair of hand drum shaped drums are vertically and horizontally movable and the frozen fish body F is stably conveyed even though the frozen fish body is bent. The frozen fish body F is positioned by a fifth conveying means 15 having a hand drum shaped roller pair movable only in vertical direction and then cut by a band saw 5. The fish body is then conveyed by a sixth conveying means 17 having a configuration same to the second conveying means 9, etc., and finally pulled out by a seventh conveying means 19 having projections on the clumping face of the hand drum shaped rollers. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a fish cutting apparatus for cutting fish such as frozen tuna.

As this type of fish cutting device, conventionally, a frozen fish placed on a processing table is manually pressed by the operator and slid on the table to be moved to a disk saw or a band saw arranged forward in the moving direction. A configuration in which it is pressed and cut is known.
However, with this method, it is inevitable that the operator's hand approaches the saw, and the frozen fish is hard and slippery, so there are safety issues and skill is required to obtain a uniform cutting quality. And
In view of such circumstances, in recent years, it has been carried out to automate the transport of frozen fish before and after cutting means such as a disk saw or a band saw. For example, a belt conveyor system is known in which a frozen fish body is sandwiched and transported between a pair of transport belts provided facing each other on a horizontal plane. The flexibility of the belt can follow changes in the outer shape of the frozen fish body.

In Patent Document 1, in order to overcome the difficulty of cleaning due to clogging of cutting debris in the belt conveyor system, a pair of rollers provided facing each other in a vertically standing state are arranged along a plurality of conveyance paths, There has been disclosed a fish body conveying apparatus that changes the interval between opposing rollers according to the size of the fish body.
The roller is formed in a cylindrical shape, and unevenness and grooves for preventing the fish from slipping are formed on the surface thereof.

Japanese Patent Laying-Open No. 2005-27622

With the configuration disclosed in Patent Document 1, it is possible to eliminate the difficulty of cleaning in the belt conveyor system, and it is possible to obtain a follow-up function for fish body size changes equivalent to the belt conveyor system by a variable configuration of the roller interval.
However, there is a problem that it is difficult to obtain a stable transport of a frozen fish body because it is configured to be sandwiched and transported between cylindrical rollers.
That is, since the frozen fish body is hard as described above, the contact between the frozen fish body and the roller can be regarded as the contact between the cylindrical body extending in the transport direction and the cylindrical body orthogonal to the cylindrical body. The area is very small. For this reason, it is difficult to obtain a uniform cutting quality because the cutting means is entered while the holding state (clamping state) during conveyance is unstable.
In addition, the shape (posture) of frozen fish that has been rapidly frozen on a fishing boat is varied, which further increases instability during transportation.
In the case of the belt conveyor system, since the vertical belt surface extends in the transport direction, the contact area with the frozen fish body is larger than the roller system, but the side surface of the frozen fish body is also curved in the transport direction, so it is unstable. A contact area sufficient to improve the holding state cannot be obtained.

  The main object of the present invention is to provide a fish cutting apparatus capable of stably transporting fish and obtaining uniform cutting quality.

  SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the invention according to claim 1 is arranged such that a plurality of pairs of rollers provided opposite to each other are arranged along the conveyance path, and the fish body is driven to rotate. In the fish cutting apparatus that transports while sandwiching between the rollers and cuts the fish with a cutting means provided on the transport path, at least one of the plurality of roller pairs has a diameter from both sides toward the center. It is a fish cutting device characterized by being composed of a drum-shaped roller with a small diameter.

  According to a second aspect of the present invention, in the fish cutting apparatus according to the first aspect, the pair of rollers composed of the drum-shaped rollers is substantially the same as the conveying direction of the fish in a state where the rollers are biased so that the rollers approach each other. It is a fish cutting device characterized by being provided so that contact and separation are possible in the direction which intersects perpendicularly.

  According to a third aspect of the present invention, in the fish cutting apparatus according to the second aspect, each roller of the pair of rollers is a pair of arms fixed at one end side to a pair of meshed gears and in contact with each other in synchronization. It is a fish cutting device characterized by being supported at each end side.

  According to a fourth aspect of the present invention, in the fish cutting apparatus according to the second or third aspect, the roller is supported by a support shaft and a roller body supported on the support shaft so as to be slidable in the axial direction and synchronously rotatable. The fish body cutting device is characterized in that the roller body is biased in the axial direction on both sides in the axial direction.

  According to a fifth aspect of the present invention, in the fish cutting apparatus according to the fourth aspect of the present invention, a plurality of non-slip convex portions are formed on the surface of the roller body that sandwiches the fish body. It is.

  A sixth aspect of the present invention is the fish cutting apparatus according to the second or third aspect, wherein a plurality of pin-shaped protrusions protruding in a substantially radial direction are formed on a surface of the roller that sandwiches the fish body. This is a fish cutting device.

  According to a seventh aspect of the present invention, in the fish cutting apparatus according to the first aspect, the plurality of sets of roller pairs are all constituted by drum-shaped rollers, and the roller pair closest to the cutting means upstream is The roller pair having the configuration according to item 2 and in which each roller does not move in the axial direction, and the roller pair positioned at the most downstream side of the conveyance path is driven to rotate by a drive source having the configuration according to claim 6, and others The pair of rollers for carrying the above is a fish cutting apparatus having the configuration according to claim 5 and being rotationally driven by a drive source.

  According to the first aspect of the present invention, the large contact area along the outer shape of the fish body can be held by the pair of drum-shaped rollers, so that stable conveyance can be performed and uniform cutting quality can be obtained.

  According to invention of Claim 2, it can follow the change of the external shape accompanying the movement of a fish body, and can obtain the stable conveyance state.

  According to invention of Claim 3, since a pair of rollers can be displaced synchronously, it can follow with respect to the change of the external shape accompanying the movement of a fish body with high precision.

  According to invention of Claim 4, even if the fish body is bent, the stable conveyance state can be obtained.

  According to invention of Claim 5, the slip loss during conveyance can be reduced and conveyance property can be improved.

  According to invention of Claim 6, discharge | emission from the conveyance path of the cut | disconnected fish body can be performed reliably.

  According to the seventh aspect of the present invention, a stable conveying state can be obtained even when the fish body is bent, and a uniform cutting quality can be obtained.

A fish cutting apparatus according to an embodiment of the present invention will be described with reference to the drawings.
First, an outline of the configuration and cutting operation of the fish cutting apparatus 1 according to the present embodiment will be described with reference to FIG. The fish cutting apparatus 1 includes a base frame 3 that forms a part of an apparatus main body (not shown), a band saw 5 as a cutting means, a first conveying means 7 disposed on the upstream side (right side in the figure) of the band saw 5, and a second The conveying means 9, the third conveying means 11, the fourth conveying means 13, the fifth conveying means 15, the sixth conveying means 17 arranged on the downstream side (left side in the figure) of the band saw 5, the seventh conveying means 19, etc. have.
Each conveying means has a pair of rollers 7A, 7B, 9A, 9B, 11A, 11B, 13A, 13B, 15A, 15B, 17A, 17B, 19A, and 19B that are provided to face each other.
The frozen fish F as the object to be cut is sandwiched between the rollers by the first conveying means 7 located at the uppermost stream in the conveying path, pushed in, and rotated by the second conveying means 9 to the fourth conveying means 13. The sixth conveying means 17 and the seventh conveying means which are conveyed by being sandwiched between these rollers, cut in the vertical direction by the band saw 5 while being sandwiched between the rollers of the fifth conveying means 15 and positioned. It is nipped between these rollers by the conveying means 19 and conveyed, and finally divided into two (Fa, Fb) and discharged.

The band saw 5 has a known configuration in which a loop-shaped band saw (band saw) is rotated around a pulley (not shown) arranged above and below to rotate.
As shown in FIG. 2 (plan view), the rollers of each transport means are formed in the shape of a drum whose diameter decreases from both sides toward the center of rotation, and surround the back and abdominal surfaces of the frozen fish F vertically. It has a roller shape to pinch.
Below, the structure of each conveyance means is demonstrated in detail.
As shown in FIG. 3, the first transport unit 7 includes an upper roller 7 </ b> A, a lower roller 7 </ b> B, and a support mechanism 21 that contacts and separates them in the vertical direction in a state where they are biased so as to approach each other. have. The upper roller 7A and the lower roller 7B have a support shaft 23 and a drum-shaped roller body 25 that is rotatably supported by the support shaft 23. An annular groove 25a that accommodates the top of the frozen fish F in the vertical direction is formed in the central part of the roller body 25 in the axial direction (the same applies to the roller or roller body in other transport means, and a is added to the reference numeral). Will be omitted).

The support mechanism 21 includes a vertical frame 27 fixed to the base frame 3, a pair of upper and lower gears 29 and 29 that are rotatably supported by the vertical frame 27, and one end side fixed to each gear 29. A pair of upper and lower arms 31 fixed to one end of the support shaft 23, and a spring 33 as an urging means that is engaged with each arm 31 and urges each roller body 25 toward each other. Yes.
The 1st conveyance means 7 has a function which takes in a frozen fish body in a conveyance path, and is taken in when an operator holds a frozen fish body by hand and pushes between a roller from a head.

When the head of the frozen fish is placed between the rollers and pushed in, each roller body 25 separates under the urging force of the spring 33 and is synchronously displaced up and down along the body shape of the frozen fish to rotate while constantly holding the frozen fish. To the second transport means 9. Therefore, the first transport unit 7 also has a function as a positioning unit for passing to the second transport unit 9. From this point of view, each roller body 25 is restricted from moving in the axial direction.
Since the operator pushes in between the rollers, the nipping surface (slope) of the roller body 25 is not slippery and has a smooth surface so that the pushing operation can be performed smoothly.

As shown in FIG. 2, the second transport unit 9, the third transport unit 11, the fourth transport unit 13, and the sixth transport unit 17 have the same configuration and symmetry in arrangement. The conveying means 11 will be described.
As shown in FIG. 4, the third transport unit 11 includes an upper roller 11 </ b> A, a lower roller 11 </ b> B, and a support mechanism 35 that contacts and separates them in the vertical direction in a state where they are biased so as to approach each other. And a drive mechanism 37 that rotationally drives the upper roller 11A and the lower roller 11B.
The upper roller 11A and the lower roller 11B have a rotation shaft 39 as a support shaft and a drum-shaped roller body 41 supported by the rotation shaft 39 so as to be slidable in the axial direction and synchronously rotatable.
On the sandwiching surface of the roller body 41, a plurality of anti-slip convex portions 41b extending in a direction substantially orthogonal to the conveying direction are provided radially at intervals in the circumferential direction.
These convex portions 41b are provided in order to reduce the slip loss of the frozen fish during transportation, and are not limited to this shape and arrangement mode, and can be appropriately changed in design as long as the anti-skid function is obtained. .

Each roller body 41 is supported so as to be slidable in the axial direction and synchronously rotatable with respect to the rotation shaft 39 by engagement of a key groove, serration or the like. Coil springs 43 as urging means are set on both axial sides of each roller body 41, and the roller body 41 can move in the axial direction (left and right direction) under the urging force of the coil spring 43.
The support mechanism 35 includes a vertical frame 45 fixed to the base frame 3, a pair of upper and lower gears 47, 47 that mesh with each other, one end side fixed to each gear 47, and one end side of the rotating shaft 39 is rotatable to the other end side. A pair of upper and lower arms 49 supported by the air cylinder 51 and an air cylinder 51 as an urging means for urging each roller body 41 so as to approach each other.
One end side of the roller body 41 is supported by an arm 49 and a bearing 53 fixed to the arm 49. The movable rod of the air cylinder 51 is connected to a fixed piece 55 fixed to the upper arm 49.

The drive mechanism 37 is fixed to a motor 57, drive shafts 61, 61 supported by bearings 59, 59 fixed to the vertical frame 45 and rotatably passing through the gear 47, and the drive shafts 61, 61 to the motor side. Between the drive gears 63 and 63 meshing with each other, the sprockets 65 and 65 fixed to the other end of the drive shafts 61 and 61, the sprockets 67 and 67 fixed to the rotary shaft 39, and the sprockets 65 and 67. Chain 69, 69.
Here, the lower drive shaft 61 and the rotating shaft of the motor 57 are directly connected and omitted. However, the motor 57 is actually arranged so as to be orthogonal to the drive shaft 61 and accommodates, for example, a worm gear, a worm wheel, and the like. It is connected via a gear box.

As shown in FIG. 5, the fifth conveying means 15 disposed at the position closest to the band saw 5 on the upstream side is arranged such that the drum-shaped upper roller 15 </ b> A and the drum-shaped lower roller 15 </ b> B approach each other. And a support mechanism 71 for bringing them into and out of synchronization in the vertical direction.
The support mechanism 71 is vertically movable with a vertical gate frame 73 fixed to the base frame 3, vertical shafts 75, 75 provided on both sides of the vertical frame 73, and the vertical shafts 75. An upper movable frame 77 that rotatably supports the upper roller 15A, a lower movable frame 79 that is fitted to each vertical shaft 75 and can be moved up and down, and that rotatably supports the lower roller 15B, and a vertical frame 73 has a sprocket 81 rotatably supported on the upper surface of 73, and a chain 83 that is engaged with the upper movable frame 77 at one end and is engaged with the lower movable frame 79 at the other end and is wound around the sprocket 81. ing.

The weight balance between the upper movable frame 77 and the lower movable frame 79 is set so that the upper roller 15A and the lower roller 15B are close to each other. When the frozen fish enters, the upper roller 15A and the lower roller 15B are separated in synchronization with each other in the vertical direction. .
The fifth conveying means 15 is provided for positioning the frozen fish body just before being cut by the band saw 5, and the movement of the upper roller 15A and the lower roller 15B in the axial direction (left-right direction) is restricted.
The clamping surface of the upper roller 15A and the lower roller 15B has no slippage and is a smooth surface, like the roller body 25 of the first conveying means 7.

As shown in FIG. 6, the seventh conveying means 19 located on the most downstream side of the conveying path synchronizes the upper roller 19A, the lower roller 19B, and the upper roller 19B in the vertical direction in a state where they are urged so as to approach each other. And a driving mechanism 37 that rotationally drives the upper roller 19A and the lower roller 19B.
The upper roller 19A and the lower roller 19B have a rotation shaft 85 as a support shaft and a drum-shaped roller body 87 fixed to the rotation shaft 85.
The seventh transport unit 19 has a function of pulling out the frozen frozen fish body transported by the sixth transport unit 17. From this point of view, a plurality of pin-like protrusions 87b protruding in a substantially radial direction are formed on the sandwiching surfaces of the upper roller 19A and the lower roller 19B. The protrusion 87b has a shape that does not damage the frozen fish body.
Here, although the upper roller 19A and the lower roller 19B are configured not to move in the axial direction, they may be moved to the left and right under the urging force in the same manner as the third transport unit 11 and the like.

The cutting process based on the above configuration will be described again. As shown in FIG. 2, the frozen fish F is first pushed from the head between the rollers of the first conveying means 7 by the operator, positioned, and passed to the second conveying means 9. It is.
In the 1st conveyance means 7, the roller main bodies 25 and 25 are displaced up and down following the fluctuation | variation of the magnitude | size of the external shape accompanying the pushing movement of the frozen fish body F, as shown in FIG.
As shown in FIG. 2, the frozen fish F is transported in a state in which slip is suppressed by the second transport means 9, the third transport means 11, and the fourth transport means 13.
As described above, the shape (posture) of a frozen fish that has been quickly frozen on board the ship is solid in the posture of the fish at that time, and is often bent in various directions. In the 2nd conveyance means 9, the 3rd conveyance means 11, and the 4th conveyance means 13, even if there exists such bending of a frozen fish body, it hold | maintains stably and is conveyed.

  That is, as shown in FIG. 8, when the frozen fish body F has a larger outer shape than the portion indicated by the solid line and is bent to the left, the roller bodies 41 and 41 have the outer shape as indicated by the two-dot chain line. Is displaced in the vertical direction in accordance with the size of the lens, and is displaced to the left in the axial direction. If it is bent to the right, it is displaced as shown in FIG.

As shown in FIG. 2, immediately before the band saw 5, the frozen fish F is positioned by the fifth transport means 15, and is cut by the band saw 5 while being sandwiched and transported in the positioned state. In the fifth conveying means 15, as shown in FIG. 10, the upper rollers 15A and 15B are synchronously displaced up and down and positioned in the axial direction following the change in the size of the outer shape accompanying the movement of the frozen fish F. Disconnected in state.
As shown in FIG. 2, the cut frozen fish F is transported in a state where slippage is suppressed by the sixth transport means 17. Even if the frozen fish body delivered from the fifth conveying means 15 is bent, the sixth conveying means 17 performs a roller displacement corresponding to the bending.
The divided frozen fish F is finally pulled out by the seventh transport means 19 and discharged. As shown in FIG. 11, in the seventh transport means 19, the roller bodies 87, 87 are synchronously displaced up and down following the change in the size of the outer shape accompanying the movement of the frozen fish F, and the divided frozen fish Fa, Fb is pulled out and discharged by the frictional force generated by the protrusion 87b.
The seventh conveying means 19 may be arranged immediately after the band saw 5 without providing the sixth conveying means 17.

The embodiment of the present invention has been described in detail above. However, the specific configuration is not limited to this embodiment, and the present invention can be changed even if there is a design change without departing from the gist of the present invention. included.
For example, in the above embodiment, the frozen fish body is transported in a standing state (posture when swimming), but the band saw 5 is moved horizontally so that the frozen fish body is transported in a laid state. Also good.
The drum-shaped roller or the roller body can be integrally formed with the convex portions and the protrusions using an aluminum alloy, plastic, or the like.

It is an outline front view of the fish cutting device concerning an embodiment of the invention. It is a principal part top view of the fish cutting device shown in FIG. It is a perspective view of a 1st conveyance means. It is a perspective view of a 3rd conveyance means. It is a perspective view of a 5th conveyance means. It is a perspective view of the 7th conveyance means. It is a principal part side view which shows the up-down displacement state of the roller of a 1st conveyance means. It is a principal part side view which shows the up-down / left-right displacement state of the roller of a 3rd conveyance means. It is a principal part side view which shows another displacement state of up-down and left-right of the roller of a 3rd conveying means. It is a principal part side view which shows the positioning state by the roller of a 5th conveyance means. It is a principal part side view which shows the clamping state of the roller of a 7th conveying means.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fish body cutting device 5 Band saw as cutting means 7A, 7B, 9A, 9B, 11A, 11B, 13A, 13B, 15A, 15B, 17A, 17B, 19A, 19B Roller 23, 39, 85 Support shaft 25, 41, 87 Roller body 29, 47 Gear 31, 49 Arm 41b Convex part 87b Protrusion F Frozen fish body as fish body

Claims (7)

  A plurality of pairs of rollers provided opposite to each other are arranged along the conveyance path, and the fish body is cut while being sandwiched between the rollers that are rotationally driven and cut by the cutting means provided on the conveyance path. In the apparatus, at least one of the plurality of roller pairs is constituted by a drum-shaped roller whose diameter decreases from both sides toward the center.   2. The fish body cutting apparatus according to claim 1, wherein the pair of rollers composed of the drum-shaped rollers can be contacted and separated in a direction substantially perpendicular to the transport direction of the fish bodies in a state where the rollers are biased so as to approach each other. A fish cutting apparatus characterized by being provided.   3. The fish cutting apparatus according to claim 2, wherein each roller of the pair of rollers is supported on the other end side of a pair of arms that are fixed to one pair of gears engaged with each other and that are synchronized with each other. A fish cutting apparatus characterized by that.   4. The fish cutting apparatus according to claim 2 or 3, wherein the roller includes a support shaft and a roller body supported on the support shaft so as to be slidable in the axial direction and synchronously rotatable. A fish cutting apparatus characterized by being biased in the axial direction on both sides in the direction.   5. The fish cutting apparatus according to claim 4, wherein a plurality of non-slip protrusions are formed on a surface of the roller body that sandwiches the fish.   4. The fish cutting apparatus according to claim 2, wherein a plurality of pin-like protrusions protruding in a substantially radial direction are formed on a surface of the roller that sandwiches the fish body. 2. The fish cutting apparatus according to claim 1, wherein the plurality of sets of roller pairs are all constituted by drum-shaped rollers, and the roller pair closest to the cutting means on the upstream side is the structure according to claim 2 and each The roller pair having a configuration in which the rollers do not move in the axial direction and the roller pair located at the most downstream side of the transport path is driven to rotate by the drive source having the configuration of claim 6, A fish cutting apparatus having the configuration according to claim 5 and being rotationally driven by a drive source.

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