JPH0317537B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a hulling sorting machine that sorts mixed rice of unhulled rice and brown rice using a rotating sorting tube that has a large number of potholes on its inner circumferential surface. It is something.

[Prior Art and Problems to be Solved by the Invention] A rice hulling device and a rotary sorting tube having a large number of potholes on the inner circumferential surface are arranged side by side in the front and back, and the discharge side of the rotary sorting tube is There is a hulling sorter located on the side of the hulling equipment. And, with this type of huller sorting machine,
Japanese Utility Model Application No. 57-12279 is a prior art technique that streamlines the return of grains transferred to the discharge side end of a rotary sorting cylinder to a hulling device.

In this conventional technology, a receiving gutter is provided inside the sorting tube to receive the grains scooped up by a recess, and scooping blades are provided at the end of the sorting tube to scoop up the grains after sorting. It is configured to return to a sliding machine. However, in this conventional technology, since the end of the receiving trough on the huller side does not extend to the scooping blade, there is no problem such as grains falling into the receiving trough while being scooped up by the scooping blade. not exist.

However, in the sorting tube there is a concave part that receives the grains, and a scooping blade is installed at the end of the sorting tube to scoop up the grains after sorting, so that they can be returned to the huller. Moreover, if the grains received in the receiving trough are transferred to the terminal end of the sorting tube by a spiral conveyor in the receiving trough and taken out of the machine, the grains that are being scooped up by the scooping blades will not reach the receiving trough. The grains fall, and unsorted grains that are being scooped up mix with the sorted grains in the catcher.
A problem arises in that the sorting accuracy decreases. Therefore, this invention is an attempt to solve these problems.

[Means for Solving the Problems] The technical means of the present invention to solve such problems is to provide a hulling device A, a discharge side of which is located on the hulling device A side, and a large number of holes on the inner peripheral surface. This rice hulling sorter is equipped with a rotary sorting tube 10 having a pot hole 10a, and the rotary sorting tube 1 is provided in the rotary sorting tube 10.
0 from the supply side to the discharge side, the pot hole 10a
A brown rice receiving gutter 11 with an open top is provided to receive the brown rice scooped up by the machine, and a conveying body 28 is provided in the brown rice receiving gutter 11 to transport the grains to the hulling device A side, and the rotary sorting cylinder 10 is discharged. Brown rice catcher on the side 1
1, there is provided a guide gutter B that can return the unhulled rice that has flowed to the discharge side of the rotary sorting cylinder 10 to the hulling device A side, and Rotating sorting cylinder 1 with cylinder 15
The rotary sorting tube 10 in this brown rice receiving gutter 11 is constructed so that the grains on the terminal side of the brown rice can be pumped up into the guide gutter B.
A plate-shaped blocking member 17a for preventing the grains pumped up by the pumping cylinder 15 from falling into the brown rice receiving trough 11 is installed above the discharge side end portion of the plate in a direction substantially perpendicular to the longitudinal direction of the brown rice receiving trough 11. This is a structure of a grain reduction device for a huller sorting machine, which is characterized by being provided along the same line.

[Actions and Effects of the Invention] Through such technical means, this invention achieves the following:
It has the following technical effects. That is, by scooping up the mixed rice supplied into the rotary sorting tube 10 with the pot hole 10a of the rotating rotary sorting tube 10, the brown rice can be received in the brown rice receiving gutter 11, and the brown rice that has been received can be Although the rice is transported to the hulling device A side by the transport body 28 and taken out of the machine,
The sorted rice that has flowed to the discharge side of the rotary sorting tube 10 is pumped up into the guide trough B by the pumping cylinder 15 that rotates integrally with the rotary sorting tube 10 and returned to the hulling device A. Therefore, the grain reduction device can be made simple without requiring a special drive device, and the guide gutter B is located above the terminal end side of the conveyor 28 of the brown rice receiving gutter 11. However, even if the grains that are being pumped fall and try to fall into the brown rice receiving gutter 11, there is a structure above the discharge side end of the rotary sorting cylinder 10 in this brown rice receiving gutter 11 to prevent the grains from falling into the brown rice receiving gutter 11. Since the plate-shaped blocking member 17a is provided along the direction substantially perpendicular to the longitudinal direction of the brown rice receiving trough 11, the grains being drawn up are scattered in the direction substantially perpendicular to the brown rice receiving trough 11. Dropping into the brown rice receiving gutter 11 is well prevented, preventing unsorted grains from being mixed into the brown rice in the brown rice receiving gutter 11 during pumping, and improving sorting accuracy.

[Example] Hereinafter, an example of the present invention will be specifically described based on the drawings. Reference numerals 1 and 1 denote a pair of dehulling rolls constituting the hulling device A, which are disposed below the supply funnel 2, and below which a husking air receiving trough 4 is provided across the sorting air passage 3. There is. 5 is a first sorting device;
It is equipped with a rotating sorting cylinder 6 which is horizontally suspended and has a large number of pot holes 6a, 6a, ... on its inner surface, and a mixed rice receiving trough 7 which is provided in this rotating sorting cylinder 6 with an open upper part. The grain lifting cylinder 8a of the frying shell cylinder 8 provided at one end of the fallen rice receiving trough 4 is configured to supply the fallen rice to the supply side end of the rotary sorting cylinder 6.

9 is a second sorting device, which has a large number of pot holes 10 on its inner surface.
a, 10a, . . . and consists of a rotary sorting tube 10 suspended horizontally below the rotary sorting tube 6, and a brown rice receiving trough 11 whose upper part is open inside the rotary sorting tube 10. , the mixed rice is supplied into the rotary sorting cylinder 10 from the discharge pipe 12 of the mixed rice receiving trough 7.

In this brown rice receiving gutter 11, there is a brown rice receiving gutter 1.
A conveyor 28 (in the embodiment, a rotatably provided auger) is provided to convey the brown rice received by the rice huller 1 toward the hulling device A side. The conveyor 28 and the end of the brown rice receiving gutter 11 communicate with a brown rice discharge gutter 25 provided below the sorting air path 3 via the brown rice falling path 24. 29 is
Brown rice discharge spiral installed in the brown rice discharge gutter 25, 26
is a brown rice discharge cylinder that discharges the brown rice conveyed by the brown rice discharge helix 29.

Further, on the discharge side of the rotary sorting cylinder 6, there is a receiving port 13 for receiving unhulled rice, and the unhulled rice received through this receptacle is
It is configured to be supplied to the depulping rolls 1, 1 through a supply path 14, and a pumping cylinder 15 with a larger diameter than this is configured at the discharge end of the rotary sorting cylinder 10, and the pumping cylinder 15 On the inner surface of the wing 16,1
6, . . . are provided, and a guide gutter B is provided inside this pumping cylinder 15. This guide trough B forms a mixed rice receptacle 17 on the upper end side, and the lower end side is connected to the transport body 28 when viewed from the side of the machine.
It is located above the terminal end of the pulverizing rolls 1, and is configured to be able to guide the pumped up grains to the shredding rolls 1, 1 side. As shown in FIG. 2, the end of this guide gutter B is located above the brown rice receiving gutter 11,
Extending in a direction perpendicular to the longitudinal direction of 1,
A plate-like blocking member 17a is configured to prevent the pumped grains from falling into the brown rice receiving trough 11.

In addition, the mixed rice receiving port 17 is connected with a first flow path 18 that goes above the deflated rolls 1, 1 and a second flow path 19 that goes toward the dropped rice receiving gutter 4, and at the branching part, A switching valve 20 is provided that allows the mixed rice to flow into the first flow path 18 or into the second flow path 19.

In addition, in the figure, 21 is the dust removal winch, 22 is the No. 2 receiving gutter, 23 is the No. 2 conveying spiral, and 30 is the fallen rice receiving gutter 4.
It is a sliding rice helix that is provided inside and conveys the sliding rice and the grains flowing from the second flow path 19 to the grain lifting drum 8 side. In addition, 31 is a rotary sorting tube 6
The mixed rice that has been pumped up through the pot holes 6a, 6a, .
It is a mixed rice helix that is conveyed to the side.

In the hulling and sorting machine configured as described above, the unhulled rice fed into the feed funnel 2 falls, and about 80% of the unhulled rice is peeled off by the rotation of the hulling rolls 1, 1, and the unhulled rice is peeled downward. The paddy grains flow into the sorting air path 3, where they are sucked into the dust removal winnower 21, become sludge rice, reach the slitter rice receiving trough 4, and are fried in the slitter rice helix 30. The grains are fed into the barrel 8 and fed to the supply side end of the rotary sorting tube 6 of the first sorting device 5 through the grain lifting tube 8a.

Then, due to the rotation of this rotary sorting cylinder 6, the pot hole 6 is
a, 6a, ... The unhulled rice and brown rice that have entered the interior are pumped up, and mainly the brown rice falls from above into the mixed rice receiving trough 7 along with some unhulled rice, and the mixed rice receiving trough 7
The ratio of brown rice in the grains received has increased from about 80% previously to nearly 95%. The unhulled rice that has been extracted in this way falls from the discharge side end of the rotary sorting cylinder 6, is received by the socket 13, passes through the supply path 14, and is then passed through the dehulling rolls 1 and 1. The rice is then husked together with the unhulled rice from the feed funnel 2.

In addition, the mixed rice with an improved brown rice ratio received in the mixed rice receiving trough 7 is transferred to the mixed rice helix 31 into the discharge tube 1.
2, from which it is supplied to the supply side end of the rotary sorting cylinder 10 of the second sorting device. Then, due to the rotation of this rotary sorting tube 10, the pot holes 10a, 10a, . . .
pumps up only the brown rice to a high height and drops it into the brown rice receiving trough 11, and a large amount of brown rice is extracted in this way and the mixed rice with a reduced brown rice ratio is transferred to the rotating sorting tube 10.
It flows into the pumping cylinder 15 from the discharge side of the blade 1
The mixed rice is pumped up at 6, 16, ..., into the mixed rice socket 17.
During continuous operation, the switching valve 20
The rice is flowed through the second flow path 19, directed to the rice receiving trough 4, where it joins with the rice that has fallen from the dehulling rolls 1, 1, and is supplied to the first sorting device 5, where it is subjected to the above-mentioned processing. Repeat the process.

In addition, at the end of the work, when the unhulled rice is no longer supplied from the supply funnel 2 to the dehulling rolls 1, 1, the mixed rice is transferred to the dehulling rolls 1, 1 through the first flow path 18 using the switching valve 20. supply Then, the unhulled rice discharged from the rotary sorting tube 6 and the rotary sorting tube 10
The mixed rice discharged from the pudding rolls 1 and 1 are now dehulled, and the mixed rice is passed to the first sorting device 5,
The rice is no longer circulated only between the second sorting device 9 and the dropped rice receiving trough 4, but passes through the scraping rolls 1, 1, so that the scraping action can be accelerated.

Moreover, the brown rice received in the brown rice receiving channel 11 is
The rice is transported by the transport body 28 toward the hulling device A side, and then guided from the end of the transport through the brown rice fall path 24 to the brown rice discharge gutter 25 disposed near the fallen rice receiving gutter 4. Ru. As shown in FIG. 2, the plate-shaped blocking member 17a of the guide trough B is located above the transport end of the transport body 28 when viewed from the front of the aircraft, so that the horizontal width of the aircraft can be made compact. In addition, since the transport body 28 can be configured to be longer on the side of the hulling device A, the performance of transporting brown rice can be improved. Furthermore, during continuous operation, the mixed rice discharged from the second sorting device 9 is mixed with the scraped rice by automatic or manual operation of the switching valve 20, and the brown rice of the mixed rice is passed through the scraping rolls 1, 1. At the end of the work, the mixed rice is fed to the deflating rolls 1 and 1 to quickly finish the process.
In addition, it has the characteristic of reducing residual rice.

In addition, although the guide gutter B is located above the terminal end of the conveyor 28 of the brown rice receiving gutter 11, grains falling during scooping may fall into the brown rice receiving gutter 11.
Even if the grains try to fall into the brown rice receiving gutter 11, there is a blocking member 17a above the terminal end of the rotary sorting cylinder 10 in the brown rice receiving gutter 11, which prevents the grains from falling into the brown rice receiving gutter 11 in the longitudinal direction of the brown rice receiving gutter 11. Since they are provided so as to be substantially orthogonal to each other, grains that are scooped up while scattering in a direction perpendicular to the longitudinal direction of the brown rice receiving gutter 11 are prevented from falling into the brown rice receiving gutter 11, and the grains are prevented from falling into the brown rice receiving gutter 11. This prevents unsorted grains that are being scooped from being mixed into the brown rice inside the rice bowl and improves the sorting accuracy.

[Brief explanation of the drawing]

FIG. 1 is a cutaway side view of a rice huller according to the present invention, and FIG. 2 is a cutaway front view of a portion thereof. Explanation of symbols, A: Hulling device, B: Guide trough,
1... Scraping roll, 2... Supply funnel, 3... Sorting air path, 4... Dropped rice receiving gutter, 5... First sorting device,
6... Rotating sorting tube, 6a... Pot hole, 7... Mixed rice receiving trough, 8... Grain lifting cylinder, 8a... Grain lifting cylinder, 9... Second sorting device, 10... Rotating sorting tube, 10a...pot hole, 11...brown rice catcher, 12...discharge pipe, 13...
... Socket, 14 ... Supply channel, 15 ... Pumping cylinder,
16...Blade, 17...Mixed rice receiver, 17a...Plat-like blocking member, 18...First flow path, 19...Second flow path, 20...Switching valve, 21...Dust exhaust winch, 22...
...No. 2 receiving gutter, 23... No. 2 conveyance spiral, 24...
Brown rice falling path, 25...Brown rice discharge gutter, 26...Brown rice discharge barrel, 28...Transporter, 29...Brown rice discharge screw, 30...Sliding rice helix, 31...Mixed rice screw.

Claims (1)

[Claims] 1. A hulling and sorting machine comprising a hulling device A and a rotary sorting cylinder 10 whose discharge side is located on the hulling device A side and whose inner peripheral surface is configured with a large number of pot holes 10a, Inside the rotary sorting tube 10, there is a brown rice receiving channel 1 with an open top for receiving the brown rice scooped up in the pot hole 10a between the supply side and the discharge side of the rotary sorting tube 10.
1, and a conveyor 28 for transporting the grains to the hulling device A side is provided in the brown rice receiving trough 11, and a rotating sorting tube is installed above the brown rice receiving trough 11 on the discharge side of the rotating sorting tube 10. A guide gutter B is provided on the discharge side of the rotary sorting tube 10 to return the flowed unhulled rice to the hulling device A side, and a pumping cylinder 15 provided adjacent to the discharge side of the rotary sorting tube 10 is provided at the end of the rotary sorting tube 10. It is configured so that the grains on the side can be pumped up into the guide gutter B,
Above the discharge side end of the rotary sorting cylinder 10 in this brown rice receiving trough 11, a plate-shaped blocking member 17a is installed to prevent the grains pumped up by the pumping cylinder 15 from falling into the brown rice receiving trough 11. A grain reduction device for a huller and sorter, characterized in that it is installed along a direction substantially perpendicular to the longitudinal direction of the grain reduction device.