JP2009136711A - Rice hulling and sorting machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate operation of operation switches and various operation levers, adjustment operation of an unhulled rice partition board and a brown rice partition board and replacement work of rice hulling rolls, of a rice hulling and sorting machine. <P>SOLUTION: The rice hulling and sorting machine is provided with troughs (12, 13) to receive empty grains winnowed by a winnowing section (H) and conveying means (14, 15) for conveying the empty grains in the troughs (12, 13). The conveying means (14, 15) can selectively convey the empty grains to an operation part(Z) side and a transmission part (D) side. The transmission part (D) side is provided with a grain elevation device (20) to return the unhulled rice selected at a sorting part (36) and the empty grains received by an empty grain treatment part (S) to a rice hulling part (M). The operation part (Z) side is provided with an extraction part (16b) to extract the empty grains conveyed by the conveying means (15) to the outside of the machine. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a hull sorting apparatus.

Patent Document 1 describes a configuration of a rice hull sorter that returns wind-selected shiner and rice cake sorted by a sorting plate to a rice cake hopper with a cerealing machine provided on the front side of the machine body. Further, it is described that this hulling sorter is provided with a switching means for taking out the thinner to the front side of the machine body.
JP 2000-15120 A

  The hull sorter is operated from the front side. For example, the operation of the operation switch and various operation levers, the adjustment operation of the rice bran partition plate and the brown rice partition plate, or the replacement work of the rice hull rolls may be performed. For this reason, in the rice hull sorter of Patent Document 1, the above-described cerealing machine protrudes from the front side of the machine body, which causes a problem that it is difficult to operate.

  It is an object of the present invention to solve this problem and to make a hull sorter with good operability.

In order to solve the above problems, the present invention has taken the following technical means.
That is, the invention according to claim 1 is a wind that winds the rice hull portion (M) for removing rice cake and the rice removed by the rice hull portion (M) as rice husk, rice cake, and mixed rice. A selection unit (H), a selection unit (36) for selecting mixed rice wind-selected by the wind selection unit (H) into rice bran and brown rice, an operation unit (Z) provided with operation switches or various operation levers, A transmission part (D) for transmitting power to the hulling part (M) is provided, and the operation part (Z) and the transmission part (D) are provided on the front side and the back side of the machine body with the wind selection part (H) in between. The wind selection section (H) receives the kites (12, 13) receiving the kites selected by the wind selection section (H) and the transport means (14, 15) for transporting the kites in the kits (12, 13). ) Is provided, and the conveying means (14, 15) is configured to be able to select and convey the soot to the operation part (Z) side and the transmission part (D) side, and the transmission part (D ) Side is sorting section 36) A masher (20) is provided for returning the culm selected in 36) and the culm received by the culm processing unit (S) to the hulling unit (M). The cocoon guide receiving body (20a) for guiding the cocoon conveyed by the conveying means (15) of (S) into the cerealing machine (20), and the culm selected by the selecting unit (36) are transferred to the cerealing machine (20 ) And a take-out guide receiving body (20b) for guiding inside, and an operation portion (Z) side is provided with a take-out portion (16b) for taking out the bag carried by the carrying means (14) to the outside. It is a pallet sorter.

  According to the second aspect of the present invention, the cocoon processing unit (S) includes the cocoon spirals (14, 15) in the upper and lower two tiers of the cocoon trays (12, 13), and the upper cocoon spiral (14). And the lower heel helix (15) are respectively conveyed in opposite directions, and an opening (12a) communicating with the lower ridge ridge (13) is provided at the bottom of the upper ridge ridge (12), The hulling device according to claim 1, further comprising an opening / closing means (21) for opening and closing the opening (12a).

  According to the present invention, when the bag is transported by the upper rod spiral (14), the opening (12a) is closed by the opening / closing means (21). In addition, when the cocoon is conveyed by the lower cocoon spiral (15), the opening (12a) is opened by the opening / closing means (21). Then, the kite that has entered the upper kite receiving plate (12) from the wind selection unit (H) passes through the opening (12a) and enters the lower kite receiving kit (13) and enters the lower kite spiral (15). Be transported.

  According to the first aspect of the present invention, the rice cake that has been wind-selected by the wind-selecting unit (H) and the rice cake that has been selected by the selecting unit (36) are returned to the rice bran unit (M) by the common cerealing machine (20). The masher (20) protrudes on the operation part (Z) side by providing the cerealing machine (20) on the transmission part (D) side opposite to the operation part (Z). Accordingly, the space on the front side of the machine body is expanded correspondingly, and various driving operations of the hull sorting operation can be easily performed.

  According to the second aspect of the present invention, it is possible to transfer the kite by switching to the operation unit (Z) side or the elevator (20) side with the upper and lower kite spirals (14, 15) transporting in the opposite directions. it can.

  A hull sorter for carrying out the invention will be described. In the present embodiment, the operation unit Z side provided with an operation switch (not shown) or various operation levers (not shown) for operating by the operator is referred to as a front surface, and is described below from the dust discharge cylinder 11 to the brown rice elevator 39. The machine body longitudinal direction to reach the right and left sides is called the left and right sides, and the transmission part D, the straw elevator 20 and the mixed rice elevator 32 side described later are called the back side.

  Reference numeral 1 denotes a kite hopper for storing kites, and a shutter valve 2 for supplying and stopping the kite is provided at the bottom of the kite hopper 1, and the shutter valve 2 is opened and closed by a shutter motor 72. In the vicinity of the shutter valve 2, a soot supply roll 3 is provided that is rotationally driven to promote the soot supply. A pair of hulling rolls 4 for removing the haze is provided below the shutter valve 2 and the hull supply roll 3. In the present embodiment, the heddle hopper 1, the shutter valve 2, the heddle supply roll 3, and the hulling roll 4 are collectively referred to as a hulling part M.

  Below the hulling roll 4, a diffusion plate 5 is provided in which mixed rice of brown rice and brown rice that has passed between the hulling rolls 4 collides and diffuses. A mixed rice guide plate 6 is provided for guiding the rice.

The wind selection section H is formed by vertically stacking an upper wind selection chamber 7 and a lower wind selection chamber 8 which are formed obliquely, and the lower end portion of the mixed rice flow lower plate 8a of the lower wind selection chamber 8 is formed in the mixed rice spiral bowl 9 Connected.
In the middle of the lower wind selection chamber 8, there is provided a kite drop opening 8b through which the wind-selected kite falls into the kite processing section S. It is configured to face a suction fan 10 disposed on the left and right sides, and a dust exhaust cylinder 11 is provided on the discharge side of the suction fan 10 to discharge the wind selection to the outside. Reference numeral 18 denotes a wind force adjusting plate for adjusting the air volume in the wind selection chambers 7 and 8.

  The heel processing section S is arranged with the upper heel receptacle 12 and the lower heel receptacle 13 stacked in the vertical direction. It is the structure which decorates the lower iron spiral 15 inside. Further, the upper rod spiral 14 is configured to convey the kite toward the operation side, that is, the front side of the machine body, and the spiral shaft 14a of the upper rod spiral 14 on the conveyance end side is arranged at the wind selection section H as shown in FIG. It is provided so as to protrude outward from the side plate K, and the protruding portion is covered with an outboard discharge guide rod 16. The lower iron spiral 15 is configured to convey toward the transmission part D side, that is, the rear side of the machine body, and the conveying terminal end side is provided so as to protrude outward from the side plate K of the wind selection part H, and the protruding part is provided with the reverse guide cylinder 19. The rod return guide cylinder 19 is configured to be connected to a rod elevator 20 that supplies rods to the rod hopper 1.

  An upper portion of the upper rod receiving rod 12 is open and communicates with the rod dropping port 8b, and a bottom portion forms an opening portion 12a communicating with the lower rod receiving rod 13. In addition, an opening 16a communicating with the outside of the machine is formed at the bottom of the machine discharge guide rod 16. An opening / closing shutter 21 that opens and closes the opening 12a and the opening 16a is provided.

  The open / close shutter 21 includes a slide-type open / close shutter 21b that opens and closes the opening 16a of the discharge guide rod 16 outside the machine, a slide-type open / close shutter 21c that opens and closes the opening 12a of the upper lid 12 and an open / close shutter unit. A support arm 21d for supporting 21b, a support arm 21e for supporting the open / close shutter portion 21c, a rotation shaft 21f for horizontally sliding the support arm 21d and the support arm 21e in the lateral direction, and the rotation shaft 21f. Is provided with an operating lever 21g for rotating the shaft to the horizontal axis via a link mechanism (not shown). The opening / closing shutter portion 21b is formed with an opening portion 21h having substantially the same area as the opening portion 16a.

  A mixed rice helix 31 for conveying the mixed rice to a mixed rice elevator 32 provided on the rear side of the machine body is housed inside the mixed rice receiver 30. A mixed rice tank 33 for primary storage of mixed rice is provided on the conveyance end side of the mixed rice elevator 32. The mixed rice tank 33 and the shutter valve 2 are connected by a link member 75, and the opening degree of the shutter valve 2 is adjusted according to the amount of mixed rice stored in the mixed rice tank 33 and supplied to the hulling roll 4. It is the structure which adjusts the quantity of the wrinkle to do. The link member 75 is configured to be supported by the saddle elevator 20 on the way, and makes it difficult to distort the link member.

  A transfer rod 34 is provided below the discharge port for discharging the mixed rice from the mixed rice tank 33, and the mixed rice is distributed to the transfer terminal side of the transfer rod 35 from the back side of the multistage swing sorting plate 36. A distribution basket 37 is provided.

  The swing sorting plate 36 having a large number of irregularities formed on the plate surface is arranged to be inclined in the left-right direction of the body, and is swung in the left-right direction of the body by a swing motor 73. A rice bran partition plate 40 to be taken out and a brown rice partition plate 41 to take out the brown rice are provided, and a side portion on the front side of the swing sorting plate 36 is provided with a rice bran extraction box 42 to take out the rice bran layer.

  Below the front side of the swing sorting plate 36, a straw lower plate 43 through which the straw taken out by the straw partition plate 40 and the straw take-out box 42 flows down, and the mixture taken out by the straw partition plate 40 and the brown rice partition plate 41. A mixed rice falling plate 49 through which the rice flows down and a brown rice falling plate 44 through which the brown rice taken out by the brown rice partition plate 41 flows down are provided. A finishing circulation switching valve 45 for switching the brown rice taken out by the brown rice partition plate 41 to the mixed rice flow falling plate 49 or the brown rice flow falling plate 44 is provided at the starting end portion of the brown rice falling plate 44.

  The falling end portion of the brown rice falling plate 44 communicates with the brown rice elevator 39, and a suction removal cylinder 46 for removing dust from the finished brown rice is provided on the conveyance termination side of the brown rice elevator 39, and dust removal is performed at one end of the suction removal cylinder 46. A fan 47 is provided. The dust removal fan 47 is connected to a dust passage cylinder 48 that passes above the swing sorting plate 36 and to the side of the hull portion A, and the end portion of the dust passage cylinder is located in the upper wind selection chamber 7 of the wind selection section H. Connected to the wind selection start side. Reference numeral 76 denotes a motor for driving the finishing elevator.

The downstream end side of the lower flow plate 43 faces the conveyance start end side of the vertical catch plate 50, and the lower flow end side of the mixed rice flow lower plate 44 faces the conveyance start end side of the mixed rice reception plate 30.
Arranged in parallel with the upper side of the rice cake receiving bowl 50 and the mixed rice cake receiving board 30, a rice cake 51 that is conveyed toward the rear side of the machine body is housed in the rice bowl receiving bowl 50. It is the structure which connects the conveyance termination side of the eaves receiving rod 50 to the elevating machine 20.

  The paddle elevator 20 is provided in parallel with the front side of the mixed rice elevator 32, and the paddle guide receiving body 20a is provided on one of the left and right sides of the lower part to connect the paddle return guide cylinder 19. On the side, a bag guide receiving body 20b is provided to connect the conveyance terminal end of the bag receiving rod 50. And the mixed rice receptacle 30 is the structure connected to the mixed rice guide receptacle 32a which passes under the ridge guide receptacle 20b, and is formed in the left-right one side of a mixed rice elevator.

  As shown in FIGS. 6 and 7, the mixed rice receiving bowl 30 and the straw receiving bowl 50 are integrally formed as a unit with the mixed rice helix 31 and the hulled helix 51 being installed. That is, the mixed rice receiving pad 30 and the paddle receiving pad 50 are connected by the connecting member 60 to form a unit, and fixed in the unit state by the stopper 61 that connects the paddle elevator 20 and the base part k2 of the machine body. It is the structure to do. It can be easily assembled by unitizing.

  An opening 13a is formed at the bottom of the lower rod receiving rod 13, and an opening / closing shutter 13b that can be pulled out in the longitudinal direction of the machine body is provided in the opening 13a as shown in FIG. Further, at the bottoms of the mixed rice receiving bowl 30 and the bowl receiving bowl 50, openings 30a, 50a and opening / closing shutters 30b, 50b that can be pulled out to the front side of the machine body are provided similarly to the bottom of the lower bowl receiving bowl 13. And it is set as the structure which connects the opening part 50a of the rice cake receiving rod 50, and the inside of the mixed rice receptacle 30. FIG.

  In addition, a lower receiving tray 13 and a mixed rice receiving tray 30 are provided on both left and right sides, and a receiving box U is provided below between them, and a lower guide receiving inclined plate 62 is provided from the bottom of the lower receiving tray 13 toward the receiving box U. A mixed rice guide inclined plate 63 is provided from the bottom of the mixed rice receiving bowl 30 toward the receiving box U.

Next, the structure of the transmission part D in the back side of the hulling sorter of this Embodiment is demonstrated below.
The machine motor 70 is provided below the wind selection section H, and the pulley p1 of the machine motor 70 and the pulley p2 of the drive shaft 71 of the hulling roll 4 are connected by a transmission belt b1. The pulley p3 of the driving shaft 71 of the hulling roll is connected to the pulley p4 of the transmission shaft 77 by a transmission belt b2, and the transmission shaft 72 is connected to the pulley p5 of the upper helix 14 and to the pulley p7 of the lower helix 15 A pulley p6 that is transmitted to p8 and a pulley p10 that is transmitted to a pulley p9 of the mixed rice elevator are formed. The pulley p5 and the pulley p7 are wound around the transmission belt b3, the pulley p6 and the pulley p8 are wound around the transmission belt b4, and the pulley p5 and the pulley p7 are wound around the transmission belt b5.

  Although not shown, the transmission shaft 77 is configured to be supported by a stand provided adjacent to the elevating machine 20. Further, although the pulley of the elevating machine 20 is not shown, the transmission belt b3 is wound, the transmission belt b4 is wound around the pulley p11 of the erecting spiral 51, and the transmission belt b4 is connected to the elevating machine 20 and the mixed rice elevator 32. It is the structure which passes between. The pulley p12 of the mixed rice spiral 31 is configured to be transmitted from the pulley p13 of the mixed rice elevator 32 via the transmission belt b6.

Next, the hull sorting operation in the hull sorting machine according to the present embodiment will be described.
When an operation switch (not shown) is turned on to drive the motor 70 of the machine and the shutter valve 2 is opened, the soot supplied to the inside of the soot hopper 1 is fed out to the soot roll 4 by the soot supply roll 3 and is removed. Is made.

The mixed rice of rice bran and brown rice removed by the hulling roll 4 collides with the diffusion plate 5 and is diffused, flows down the mixed rice guide plate 6 and is dropped and supplied to the upwind selection chamber 7 of the wind selection section H. .
The mixed rice is subjected to wind selection processing while falling in the upper wind selection chamber 7 and the lower wind selection chamber 8 in order, and flows down the mixed rice falling plate 8a of the lower wind selection chamber 8 and is supplied to the mixed rice spiral rice cake 30. .

  The kite wind-selected in the lower wind selection chamber 8 falls from the kite drop opening 8b to the upper kite receiving bowl 12, and the rice husk wind-selected in the upper wind selection chamber 7 and the lower wind selection chamber 8 is sucked by the suction fan 10. Then, it is discharged from the dust discharge cylinder 11 to the outside of the machine.

  The mixed rice supplied to the mixed rice helix 30 is conveyed to the mixed rice elevator 32 by the mixed rice helix 31, and the mixed rice raised and lowered by the mixed rice elevator 32 is stored in the mixed rice tank 33. Then, the mixed rice is sequentially supplied from the mixed rice tank 33 to the transfer pad 34 and distributed and supplied from the transfer pad 34 to the multistage swing sorting plate 36 via the distribution pad 37.

  The mixed rice that has flowed to the front side of the machine while being oscillated by the oscillating sorting plate 36 is separated into a cocoon layer, a mixed rice layer, and a brown rice layer. It flows down the flow-down plate 44 and is supplied to the eaves receiving rod 50. The mixed rice layer is separated by the straw partition plate 40 and the brown rice partition plate 41 and taken out, flows down the mixed rice falling plate 42, is supplied to the mixed rice receiver 30, and is supplied again to the swing sorting plate 36.

  When discharging the brown rice partitioned by the brown rice partition plate 41 to the outside of the machine, the finishing circulation switching valve 45 is switched to the side for supplying the brown rice to the brown rice flow lower plate 44, and when circulating in the machine, the brown rice is supplied to the mixed rice flow lower plate 42 The finish circulation switching valve 45 is switched to the side to be operated.

The kite supplied to the kite receiving kit 50 is transported to the kite elevator 20 by the kite spiral 51, and is put into the kite hopper 1 again to perform the hulling operation.
The brown rice supplied to the brown rice elevator 39 from the brown rice flow lowering plate 44 is sucked by a dust removing fan 47 at the throwing port 39a of the brown rice elevator 39, and the sucked dust is transferred from the dust suction cylinder 46 to the dust passage cylinder 48. Is supplied to the wind selection start side of the upper wind selection chamber 7 of the wind selection section H and discharged together with the rice husks by the action of the suction fan 10.

Next, the processing of a kite selected by the kite processing unit S will be described.
When the wind-selected rice cake is returned to the rice masher 20 side and supplied to the rice cake hopper 1 again, as shown in FIG. 4, the operation lever 21g is operated to pull the opening / closing shutter portion 21b and the opening / closing shutter portion 21c. By rotating the moving shaft 21f, the opening 12a is opened, and the phase of the opening 21h and the opening 16a is shifted to close the opening 16a. Then, the kite that has fallen into the upper kite receiving rod 12 from the kite dropping port 8b falls as it is into the lower kite receiving kit 13 from the opening 12a, and is conveyed by the lower kite spiral 15 to the kite return guide cylinder 17 on the conveyance end side. , Supplied to the kite elevator 20 and returned to the kite hopper 1.

  When the wind-selected soot is to be discharged out of the operation side machine, as shown in FIG. 5, the rotary shaft 21f is operated by the operation lever 21g so as to push the open / close shutter portion 21b and the open / close shutter portion 21c. Thus, the opening 12a is closed by the opening / closing shutter 21c, and the opening 14a is opened with the phases of the opening 21h and the opening 16a being the same.

  Then, the kite that has fallen into the upper kite receiving rod 12 from the kite dropping port 8b is transferred as it is to the off-machine discharge guide rod 16 on the conveyance end side, and is discharged from the opening 16a through the discharge chute 16b.

Next, an operation of taking out the remaining rice in the upper rice cake receiving plate 12, the lower rice cake receiving plate 13, the mixed rice receiving plate 30 and the rice cake receiving plate 50 after finishing the rice hulling operation will be described.
When the opening 12a of the upper collar receiving rod 12 is closed, the open / close shutter 21 is operated so that the opening 12a is opened, and the residues remaining in the upper collar receiving rod 12 are dropped onto the lower collar receiving rod 13. Let When the opening / closing shutter 13b of the lower rod receiving rod 13 is pulled out to the operation portion Z side, the rod falls from the opening 13a of the lower rod receiving rod 13, flows down the rod guide inclined plate 62, and is supplied into the receiving box U. The

  Further, when the opening / closing shutter 50b of the hook receiving rod is pulled out to the operation portion Z side in the same manner as the opening / closing shutter 13b of the lower rod receiving rod 13, the wrinkles remaining in the hook receiving rod 50 are transferred from the opening 50a to the mixed rice receiving plate 30. Fall. When the opening / closing shutter 30b of the mixed rice receiver 30 is similarly pulled out, the mixed rice remaining in the mixed rice receiver 30 falls from the opening 30a, flows down the mixed rice guide inclined plate 63, and flows down to the receiving box U. To do.

When the above operation is completed, the operator pulls out the receiving box U to the operation side and appropriately handles the remaining rice.
The effects of the present embodiment will be described below.
By configuring the koji processing unit S of the present embodiment, the koji and the koji selected by the swing sorting plate 36 can be returned to the koji hopper 1 by the common kaki elevator 20 and the number of cerealing machines is reduced. be able to. Further, by providing the kite elevator 20 that returns the kite selected by the kite and the swing sorting plate 36 to the kite hopper 1 on the rear side of the body on the transmission unit D side instead of the front side of the unit on the operation unit Z side, The side can be made clean, the adjustment operation of the brown rice partition plate 41 and the rice bran partition plate 40 can be facilitated, and the operability of the operation unit Z provided with operation switches or various levers can be improved. it can. In addition, the operator can take out the bag by switching it outside the machine body on the operation unit Z side as necessary.

  By adopting the configuration for the remaining rice treatment of the present embodiment, the remaining rice of each receiving rice cake can be collected and taken out in a common receiving box U, so that the remaining rice removal processing after the rice hull sorting operation can be simplified. Can do. In addition, the length of the heel guide inclined plate 62 and the mixed rice guide inclined plate 63 for guiding the remaining rice to the receiving box U can be shortened, the inclination angle at which the remaining rice flows down can be increased, It can be smoothly collected in the receiving box U. Moreover, since the remaining rice of the paddle receiving bowl 50 and the mixed rice receiving bowl 30 can be guided to the receiving box U by the common mixed rice guide inclined plate 63, the cost is reduced. Moreover, the machine body left-right width | variety of a hulling sorter can be made compact compared with the past.

Diagram illustrating the inside of a hull sorter as seen from the front The figure explaining the inside of a hull sorter seen from the side The figure explaining a part of the inside of the hull sorter seen from the front The figure explaining operation | movement of the opening-and-closing shutter of an upper eyelid receptacle The figure explaining operation | movement of the opening-and-closing shutter of an upper eyelid receptacle Perspective view of mixed rice bowl and rice bowl The figure which shows the connection state of the mixed rice receiving machine and mixed rice lifting machine seen from the side, and the rice cake receiving machine and the rice lifting machine The figure which shows the connection state of the mixed rice receiving and the mixed rice elevator seen from the plane, and the connection state of the straw receiving / returning guide cylinder and the straw lifting machine The figure which shows the connection state of the kite receiving and the kite return guide cylinder and the kite elevator seen from the front

Explanation of symbols

M hulling part H wind selection part S hail processing part Z operation part D power transmission part 12 receiving (upper hail receiving)
12a Opening 13 Receptacle (lower pallet)
14 Transport means (upper spiral)
15 Conveying means (bottom spiral)
16 Outboard discharge guide rod 16b Extraction part (discharge chute)
20 Graining machine
20a Hail guide receiving body 20b Hail guide receiving body 21 Opening / closing means (opening / closing shutter)
36 Sorting part (oscillating sorting plate)

Claims (2)

A wind-shearing part (M) for removing rice cake, a wind-selecting part (H) for wind-selecting rice husks shed by the rice-shelling part (M) into rice husk, straw and mixed rice, and a wind-selecting part Power is transmitted to the sorting unit (36) that sorts the mixed rice wind-selected in (H) into rice bran and brown rice, the operation unit (Z) provided with operation switches or various operation levers, and the rice huller unit (M). A transmission section (D)
The operation part (Z) and the transmission part (D) are provided on the front side and the back side of the body with the wind selection part (H) in between,
The wind selection unit (H) includes a receiving member (12, 13) that receives the kite selected by the wind selection unit (H), and a conveying means (14, 15) that conveys the kite in the receiving unit (12, 13). And a conveying means (14, 15) configured to be able to select and convey the soot to the operation part (Z) side and the transmission part (D) side,
On the transmission part (D) side, there is provided a cerealing machine (20) for returning the straw sorted by the sorting part (36) and the straw received by the straw processing part (S) to the rice grinder part (M),
At the lower part of the cerealing machine (20), a cocoon guide receiving body (20a) for guiding the cocoon conveyed by the conveying means (15) of the culm processing unit (S) into the cerealing machine (20), and a sorting unit A cocoon guide receiving body (20b) for guiding the cocoons selected in (36) into the cerealing machine (20);
A pallet sorter characterized in that an extraction section (16b) for taking out the culm transported by the transport means (14) is provided on the operation section (Z) side.   The cocoon processing unit (S) includes the cocoon spirals (14, 15) in the upper and lower tiers of the cocoon cups (12, 13), respectively, and the upper cocoon spiral (14) and the lower cocoon spiral (15). An opening portion (12a) that communicates with the lower hook receiving rod (13) and an opening / closing means that opens and closes the opening portion (12a) at the bottom of the upper hook receiving rod (12). The hulling device according to claim 1, wherein (21) is provided.

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