JP2007014301A - Incising device for shrimp - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To form an incision having a predetermined depth along the longitudinal direction of a shrimp. <P>SOLUTION: An incising device 1 is constituted of a base 2, a conveying device 3 installed to the base 2 and having a pair of conveying belts 33 for conveying the shrimp by nipping the same from width sides and a rotary blade device 4 having a freely rotating rotary blade 46 locating in the center of the pair of conveying belts 33 in the downstream side of the conveying device 3. The rotary blade 46 comprises a press plate 462 and a rotary blade body 461 having a larger diameter than the outer diameter of the press plate 462 and protruding from the outer peripheral surface of the press plate 462 and forms an incision having a depth corresponding to the difference of the radius of the rotary blade body 461 and that of the press plate 462 in the longitudinal direction of the shrimp by pressing the shrimp by the press plate 462 of the rotary blade 46 in conveying the shrimp through the conveying device 3. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a cutting device for cutting a shrimp so that the shell of the shrimp can be easily peeled off.

  In general, shrimp are frozen with their heads removed and thawed in a processing or cooking place, and then the shells are removed and provided for various cooking.

  In this case, if a cut is made in the shrimp along the longitudinal direction, the shell can be easily peeled along the cut. Specifically, the worker arranges shrimp on the mortar and moves the knife parallel to the mortar to make a cut in the shell, but not only skill is required but also labor is required. It was.

From such a situation, a processing machine that automatically removes the shell has been proposed to meet a large amount of demand (see, for example, Patent Document 1).
JP 47-27799 A

  However, the above-described processing machine has a problem that not only the structure is complicated but also the number of parts is large and the cost is increased.

  The present invention has been made in view of such problems, and has a simple structure. The shrimp can be easily and reliably cut into a shrimp having a depth set along the longitudinal direction of the center in the width direction. A cutting device is provided.

  The present invention provides a base, a transport device that is provided on the base and has a pair of transport belts sandwiching and transporting shrimp from the width direction, and between the pair of transport belts on the downstream side in the transport direction of the transport device. A rotary blade device having a rotary blade that is positioned and rotatable, and the rotary blade comprises a suppression plate and a rotary blade body that is larger in diameter than the outer diameter of the suppression plate and protrudes from the outer peripheral surface of the suppression plate. When transporting shrimp through the transport device, while pressing the shrimp with the holding plate of the rotating blade, the rotating blade body cuts the shrimp with a depth corresponding to the difference between the radius of the rotating blade body and the radius of the holding plate. It is formed in the longitudinal direction.

  According to the present invention, when the shrimp is picked and the left and right sides are supplied to the transport device so as to be in contact with the transport belt, the pair of transport belts sandwich the left and right sides of the shrimp and transport them toward the downstream side. When the shrimp is transported to the cutting start position by the rotary blade, the shrimp is suppressed and pressed between the outer peripheral surface of the plate and the transport surface, the bent shrimp is stretched almost linearly, and the shrimp is shrunk by the rotary blade body. Make an incision. Thereafter, the shrimp in which the cut is formed is carried out by the transport device.

  As a result, a cut having a depth corresponding to the difference between the radius of the rotary blade body and the radius of the restraining plate can be formed in the shrimp along the longitudinal direction.

  In addition, the shrimp in which the cut was formed can be easily peeled off from the body by placing a finger on the cut formed in the shell and opening it.

  In the present invention, when a pair of regulating rollers that regulate the distance between the pair of conveyor belts to the width of the shrimp are provided facing the cutting start position of the shrimp by the rotary blade, the pair of conveyor belts at the cutting start position Since the inner surface distance of the shrimp can be constantly regulated by a pair of regulating rollers, the left and right sides of the shrimp can be held in contact with the pair of conveyor belts, respectively, and the longitudinal direction of the shrimp is centered in the width direction. It is possible to make a cut surely along.

  In the present invention, the pair of regulating rollers are rotatably provided on a pair of arms that rotate in opposite directions via meshing gears, and are urged so as to press the conveyor belts via springs. Then, when a force that pushes outward through the conveyor belt is applied to one of the regulating rollers, the pair of arms are rotated by the same amount in opposite directions via the gear, and the spring is extended. Since the distance between the regulating rollers is pulled constantly by the restoring force, the distance between the pair of regulating rollers, that is, the inner surface distance between the pair of conveying belts can be kept constant.

  In the present invention, it is preferable that the rotary shaft of the rotary blade is adjustable in the vertical direction because the tip position of the cut can be adjusted.

  In the present invention, the rotary blade comprises a rotary blade body and a holding plate that is smaller than the outer diameter of the rotary blade body and is concentrically positioned with the rotary blade body to sandwich the rotary blade body from the left and right side surfaces. Then, the depth of cut can be easily changed by exchanging with a restraining plate having a different outer diameter.

  According to the present invention, the structure is simple, and the depth of the cut set along the longitudinal direction at the center in the width direction can be easily and reliably cut into the shrimp.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 and 2 show an embodiment of a shrimp cutting device 1 according to the present invention.

  The cutting device 1 includes a base 2, a transport device 3 provided on the base 2, a rotary blade device 4 provided on the downstream side in the transport direction of the shrimp S by the transport device 3, the transport devices 3 and And a driving device 5 for driving the rotary blade device 4.

  The base 2 is formed by combining a frame and attaching a decorative plate to the peripheral surface and the upper surface of the base 2 to form a box, and the left and right directions of the upper surface (perpendicular to the transport direction of the shrimp S by the transport device 3) The partition 21 is erected along the front-rear direction (the direction in which the shrimp S is transported by the transport device 3). And on the upper surface of the base 2 divided into the left and right by the partition 21, a plastic transport plate 22 is fixed to the left of the partition 21 toward the transport direction of the shrimp S by the transport device 3, and the right side On the upper surface, an opening 2a that is usually shielded by a box-like cover 25 is formed. In addition, a work table 23 provided with a conveyance guide 231 is fixed to the base 2 so as to be continuous with the front edge of the conveyance plate 22 (the upstream edge in the conveyance direction of the shrimp S by the conveyance device 3). A chute 24 that is continuous with the rear edge of the conveying plate 22 (the downstream edge in the conveying direction of the shrimp S by the conveying device 3) is fixed.

  The conveying device 3 is a pair of endless belt conveyors 3A disposed on both sides of the conveying plate 22 on the upper surface of the base 2, and each belt conveyor 3A is spaced from the upper surface of the base 2 in the front-rear direction. And a driving roller 31 and a driven roller 32 that are rotatably supported around a vertical axis, respectively, and a conveying belt 33 wound between the driving roller 31 and the driven roller 32, and are arranged on the conveying plate 22. Each of the conveyor belts 33 of the pair of belt conveyors 3 </ b> A moves around with the lower edge thereof substantially in contact with the surface of the conveyor plate 22 so as to sandwich and convey the shrimp S from both sides. The distance between the inner surfaces is set to the width of the shrimp S.

  Further, on each belt conveyor 3A, tension rollers 34 and 34 are rotatably supported, respectively, in the vicinity of the driving roller 31 and the driven roller 32 inside the respective conveying belts 33 that circulate. Each tension roller 34 is rotatably supported by an arm 342 integrally connected to a shaft 341 that is rotatably supported on the upper surface of the base 2, and each arm 342 is erected on the arm 342. The springs 344 disposed between the pins 343 and 343 are biased toward each other. For this reason, the pair of opposing tension rollers 34, 34 press the inner surface of each conveyor belt 33 inward before and after the conveyor 3 to keep it in a tension state.

  Further, a pair of regulating rollers 35, 35 are rotatably supported on the inner side of each of the conveyor belts 33 that circulate in opposition to the cut start position of the shrimp S by the rotary blade 46 of the rotary blade device 4 described later. ing. Each regulating roller 35 is rotatably supported by an arm 352 that is integrally connected to the upper end of a shaft 351 that is rotatably supported on the upper surface of the base 2, so that each shaft 35 meshes with each other. A gear 353 is provided, and a spring 355 is disposed between the arms 354 integrally connected to the lower end of the shaft 351. For this reason, when one of the regulating rollers 35 is pressed outward via the conveyor belt 33 and the arm 352 attempts to rotate, the other regulating roller 35 also attempts to rotate by the same amount via the gear 353. However, the spring 355 disposed between the pair of arms 354 and 354 regulates the enlargement of the interval between the regulating rollers 35 and 35, and always keeps the interval between the regulating rollers 35 and 35, that is, the shrimp S by the rotary blade 46. The distance between the inner surfaces of the conveyor belts 33 and 33 at the cutting position is substantially regulated to the width of the shrimp S and held.

  The rotary blade device 4 includes a first rotary shaft 42 that is rotatably supported around a horizontal axis via bearings 41 provided across the opening 2a of the base 2, a first rotary shaft 42, and a plate. Integrating the collar 44 connected through 43, a second rotating shaft 45 rotatably supported around a horizontal axis via a bearing (not shown) provided on the collar 44, and the second rotating shaft 45. And an arm 47 provided on the plate 43 is brought into contact with an adjustment bolt 48 provided on the base 2 (see FIG. 3), whereby the axis of the second rotary shaft 45 is formed. The position is supported at the set height position.

  Here, the rotary blade 46 has a rotary blade main body 461, a disc-shaped restraining plate 462 that is arranged on the left and right side surfaces of the rotary blade main body 461 so that the rotation axes coincide with each other, and is smaller in diameter than the outer diameter of the rotary blade main body 461. The rotary blade 46 is positioned in the middle between the inner surfaces of the pair of transport belts 33 and 33 and is fixed to the second rotary shaft 45 with the rotational axis line coincident.

  As shown in detail in FIG. 4, the drive device 5 includes a drive system of the transport device 3 and a drive system of the rotary blade device 4.

  The drive system of the conveying device 3 includes an electric motor M fixed to the base 2, a pulley (not shown) fixed to the output shaft of the electric motor M, and a downstream of the electric motor M inside the base 2. A first drive shaft 51 rotatably supported via a bearing (not shown) on the side, a pulley 511 and a sprocket 512 fixed to the first drive shaft 51, and a bearing 52 on the rear end side of the base 2 And a second drive shaft 53 rotatably supported by the shaft, a sprocket 531 and a bevel gear 532 fixed to the second drive shaft 53, and a shaft supported through the top surface of the base 2 so as to be rotatable about a vertical axis. A pair of rotating shafts 54 and 54, each of which is connected to the driving roller 31 of the conveying device 3 at the upper end, and spur gears 541 and 541 which are fixed to the rotating shafts 54 and mesh with each other inside the base 2. , One rotating shaft 54 A bevel gear 542 that is fixed to the lower end of the bevel and meshes with the bevel gear 532 described above, a belt 55 wound around a pulley provided on the output shaft of the electric motor M and a pulley 511 provided on the first drive shaft 51, and a sprocket. And a chain 56 wound between 512 and 513.

  Therefore, when the electric motor M is driven to rotate, the first drive shaft 51 rotates through the output shaft, a pulley (not shown), the belt 55, and the pulley 511. When the first drive shaft 51 rotates, the second drive shaft 53, that is, the bevel gear 532 rotates via the sprocket 512, the chain 56, and the sprocket 531, and one rotary shaft 54 rotates via the bevel gears 532 and 542. The motor is decelerated to the set speed and rotates. When one rotating shaft 54 rotates, the other rotating shaft 54 rotates in the opposite direction to the one rotating shaft 54 described above via the spur gears 541 and 541. As described above, when the pair of rotating shafts 54 and 54 rotate in the opposite directions, the driving roller 31 connected to each rotating shaft 54 rotates in the opposite direction, and the pair of conveying belts 33 and 33 are connected to the shrimp S. Can be moved around in the conveying direction.

  The drive system of the rotary blade device 4 includes the electric motor M fixed to the base 2, the pulley (not shown) fixed to the output shaft, the first drive shaft 51, the first of the drive system of the conveying device 3 described above. A pulley 511 fixed to the drive shaft 51, a pulley provided on the output shaft of the electric motor M, and a belt 55 wound between the pulley 511 provided on the first drive shaft 51 are used as a common drive system. A pulley 513 fixed to the drive shaft 512, pulleys 421 and 422 fixed to the first rotating shaft 42 of the rotary blade device 4 described above, a pulley 451 fixed to the second rotating shaft 45, and pulleys 513 and 421 The belt 57 is wound between the belt 57 and the belt 58 wound between the pulleys 422 and 451. The belt 57 is provided on the first rotating shaft 42 through the opening 2 a of the base 2. It is adapted to transmission.

  Therefore, when the electric motor M is driven to rotate, the first drive shaft 51 rotates through the output shaft, a pulley (not shown), the belt 55, and the pulley 511. When the first drive shaft 51 rotates, the first rotation shaft 42 rotates through the pulley 513, the belt 57, and the pulley 421, and the second rotation shaft 45 through the pulley 422, the belt 58, and the pulley 451, that is, The rotary blade 46 fixed to the rotary shaft 45 is decelerated to the set rotational speed and rotates.

  The rotary blade device 4 and its drive system are covered with a cover 25 that is detachably provided on the right half of the base 2 and covers the opening. The rotary blade 46 is also provided with a cover 26 (see FIG. 5) that is rotatable with respect to the base 2 via a hinge. Normally, the rotary blade 46 is covered with the cover 26.

  Here, the cover 26 covering the rotary blade 46 is provided with a water injection nozzle 27 (see FIG. 5) so that tap water is supplied toward the rotary blade 46.

  Next, the operation of the cutting device 1 configured as described above will be described.

  When a switch (not shown) is turned on, the electric motor M is driven to rotate, and the power is transmitted to the drive rollers 31 and 31 through the drive system of the conveying device 3 described above, and the drive rollers 31 and 31 rotate in opposite directions. The conveyor belts 33, 33 of the pair of belt conveyors 3 </ b> A, 3 </ b> A circulate in the transport direction of the shrimp S with their lower end edges substantially in contact with the surface of the transport plate 22. Similarly, the power of the electric motor M is transmitted to the rotary blade 46 through the drive system of the rotary blade device 4 described above, and the rotary blade body 461 rotates the shrimp S in the direction of forming the cut.

  In this way, when the transport device 3 and the rotary blade device 4 are driven, the shrimp S that has already been thawed is supplied from the upstream front edge of the transport plate 22 through the transport guide 231 of the work table 23. The shrimp S supplied to the transport plate 22 is supported by the transport belts 33 at the left and right sides because the distance between the inner surfaces of the pair of transport belts 33 is set to the width of the shrimp S. For example, FIG. As shown in Fig. 4, the sheet is conveyed toward the downstream side with the abdomen facing upward.

  When the shrimp S is sandwiched between the pair of conveyor belts 33 and 33 and conveyed downstream, the inner surface distance between the pair of conveyor belts 33 and 33 is reduced by the opposing regulation rollers 35 and 35 at the cutting start position by the rotary blade 46. Since the enlargement is restricted, the left and right sides of the shrimp S are reliably supported by the pair of transport belts 33 and 33, and the shrimp S is prevented from falling over. In this state, the cutting of the shrimp S to the ventral side by the rotary blade body 461 of the rotary blade 46 is started. In this case, simultaneously with the cutting of the rotary blade 46 by the rotary blade body 461, the outer peripheral surface of the restraining plate 462 presses the ventral side of the shrimp S between the surface of the transport plate 22 and the bent shrimp S is substantially linear. To extend. As a result, a cut having a depth corresponding to the difference between the radius of the rotary blade body 461 and the radius of the restraining plate 462 can be formed on the stomach side of the shrimp S over the longitudinal direction of the center in the width direction. The shrimp S formed with the cut of the depth set by the rotary blade 46 is sandwiched and conveyed between the pair of belt conveyors 3A and 3A, and is carried out via the chute 24. Since the recovered shrimp S has a cut, the shell can be easily peeled off by placing the fingertip on the cut formed in the shell.

  Thus, by a simple operation of sequentially supplying the shrimp S from the conveyance guide 231, the set depth can be automatically cut into the shrimp S, and the shelling operation can be easily performed.

  In this case, by rotating the adjustment bolt 48 to adjust the height position of the head, the second rotation shaft 45 rotates around the first rotation shaft 42 via the plate 43, and the arm 47 with respect to the adjustment bolt 48. , That is, the axis of the second rotation shaft 45 can be adjusted in the vertical direction. For example, if the axis of the second rotating shaft 45 is adjusted downward, the distance between the outer peripheral surface of the restraining plate 462 and the surface of the conveying plate 22 can be reduced, and the shrimp S can be flattened with a large force. It is possible to press, and the tip position of the cut can be brought closer to the back side. Conversely, if the axis of the second rotation shaft 45 is adjusted upward, the distance between the outer peripheral surface of the restraining plate 462 and the surface of the transport plate 22 can be increased, and the shrimp S remains substantially circular with a small force. The tip position of the cut can be brought closer to the ventral side.

  At this time, since the distance between the second rotating shaft 44 and the first rotating shaft 42 is held constant by the plate 43, the belt 58 wound between the pulleys 422 and 451 is not affected.

  In addition, in order to change the cutting depth with respect to the shrimp S, it may be changed to a restraining plate 462 having a different outer diameter.

  Further, in the embodiment described above, the case where the cut is made on the ventral side of the shrimp S has been described, but if the shrimp is supplied to the transport device 3 with the ventral side in contact with the transport plate 22, the cut is formed on the back side. You can also.

  As described above, according to the present invention, since it is possible to easily cut the depth of the shrimp set along the longitudinal direction of the center in the width direction, it is possible to efficiently perform the subsequent shelling operation, It can be provided for various cooking using shrimp.

It is a perspective view which shows one Embodiment of the cutting device of shrimp of this invention. It is a perspective view which expands and shows the principal part of the cutting device of FIG. It is a rear view which expands and shows the principal part of the cutting device of FIG. It is a perspective view explaining the drive device of the cutting device of FIG. It is explanatory drawing which shows the cutting process of shrimp by the cutting apparatus of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cutting device 2 Base 22 Conveying plate 3 Conveying device 31 Driving roller 33 Conveying belt 35 Regulating roller 4 Rotating blade device 46 Rotating blade 461 Rotating blade body 462 Holding plate 5 Driving device

Claims (5)

  A base and a transport device that is provided on the base and has a pair of transport belts that sandwich and transport shrimp from the width direction, and rotates in the middle of the pair of transport belts on the downstream side in the transport direction of the transport device A rotary blade device having a free rotary blade, and the rotary blade comprises a holding plate and a rotary blade body that is larger than the outer diameter of the holding plate and protrudes from the outer peripheral surface of the holding plate. When the shrimp is transported through the blade, while pressing the shrimp with the holding plate of the rotating blade, the rotating blade body makes a depth of cut equivalent to the difference between the radius of the rotating blade body and the holding plate in the longitudinal direction of the shrimp. Shrimp cutting device characterized by forming.   2. The shrimp cutting device according to claim 1, wherein a pair of regulating rollers that regulate the distance between the pair of conveyor belts to the width of the shrimp are provided opposite to the shrimp cutting start position by the rotary blade.   The pair of restricting rollers are rotatably provided on a pair of arms that rotate in opposite directions via meshing gears, and are urged to press the conveying belts via springs. The shrimp cutting device according to claim 2.   2. The shrimp cutting device according to claim 1, wherein a rotation axis of the rotary blade is adjustable in a vertical direction. The rotary blade is composed of a rotary blade main body, and a holding plate that is smaller in diameter than the outer diameter of the rotary blade main body and is concentric with the rotary blade main body and sandwiches the rotary blade main body from the left and right side surfaces. The shrimp cutting device according to claim 1.

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