JP2750750B2 - Hulling equipment - Google Patents

Description

The present invention relates to a suction air path in a case where sorting in a hulling device is performed by suction air.

(B) Conventional technology Conventionally, in the hulling sorting plant, the periphery of the hulling apparatus is sealed, and the suction air is passed through the screening air path to screen the rice husk, and the rice husk is simultaneously sucked by the suction air and discharged from the suction fan. The technology is known.

For example, Japanese Utility Model Application Laid-Open No. Sho 61-21739 and JP-A-54-80869.
It is like the technique described in Japanese Patent Publication No.

(C) Problems to be Solved by the Invention However, in the conventional technology, since the suction fan also serves as the rice husk discharge fan and the selection suction air fan,
If the discharge of the rice husks was poor, the sorting performance was reduced, and there was a problem that the operation was continued as it was.

Further, conventionally, since the portion of the swing sorting device arranged in the next process of the hulling device was exposed, there was a problem that dust generated from the portion was trapped around and deteriorated the working environment. It is.

The present invention has solved such a conventional problem.

(D) Means for Solving the Problems The object of the present invention is as described above, and a configuration for achieving the object will be described below.

In claim (1), in the hulling device that performs the sorting after the hulling by the hulling device by the suction wind, the hulling device is provided in the middle of the discharge pipe 29 of the suction fan 9 that sucks the sorting wind. Open the exit of the chaff shutter 18 of
A wind speed sensor 15 is provided in the middle of the suction air passage 8 for sucking the sorting wind.
Is arranged so that the supply of the paddy is stopped when the reduced wind power of the suction wind continues for a predetermined time or more.

In claim (2), in the hulling device according to claim (1), the swing sorting device A is disposed below the hulling device, and the surroundings of the swing sorting device A are sucked by the suction wind of the hulling device. A suction air passage is provided in the swing sorting chamber 7 communicating with the passage, and a suction air passage is provided from the swing sorting chamber 7 to pass through the suction sorting air passage E and communicate with the suction fan 9, and is short-circuited in parallel with the suction air passage. An air passage 6 is provided, and a wind control valve is provided in the short-circuit air passage 6.

(E) Embodiment The purpose and configuration of the present invention are as described above. Next, the configuration of the embodiment shown in the attached drawings will be described.

The overall configuration will be described with reference to FIGS. 1, 2, and 3.

At the bottom, the mixed rice swing conveyor 33 and the rice swing conveyor
A swinging transport device, which is constituted by two of 34, is arranged.

A rocking sorting device A having a structure in which a plurality of sorting plates 2 are arranged in an overlapping manner is disposed above the rocking transporting device, and these rocking transporting devices and the rocking sorting device A are provided in a rocking sorting chamber 7. Coated with

The dust-mixed wind generated in the swing sorting chamber 7 can be sucked into the hulling device D from the upper opening so as to be used as the suction sorting wind of the hulling device D.

A hulling device D is disposed in the upper part of the swing sorting room 7, and a hulling rubber roll 1 is provided inside the hulling device D.
a and 1b are arranged.

A hulling tank 36 is arranged above the hulling device D, and a hulling machine 4 that supplies the hulling to the hulling tank 36 is arranged.

A mixed rice elevator 5 is arranged adjacent to the elevator 4.

The paddy supplied to the paddy supply hopper at the lower part of the paddy raising / lowering machine 4 is put into the paddy tank 36, and while being adjusted in the paddy tank 36, is dropped between the paddy rubber rolls 1 and padded. You.

Then, the portion that has been hulled into brown rice and chaff, and the unhulled rice that has passed through the hulling rubber roll 1 are sorted by a sorting air path configured by suction air, and the mixing of brown rice and chaff is performed. The rice falls on the first gutter conveyor 12, is conveyed by the first gutter conveyor 12 in the direction of the mixed rice elevator 5, and then reaches the mixed rice elevator 5 from the mixed rice passage 31.

Then, the mixed rice is stored in a mixed rice tank 35 that has been fried by the mixed rice elevator 5. From the mixed rice tank 35, the mixture is put into the hopper of the rocking sorter A. Next, in the rocking sorter A, the portion of the brown rice separated into the brown rice, the mixed rice, and the paddy is supplied from the passage 37 to the elevator of the next-stage particle size sorter.

Next, the mixed rice portion is returned to the mixed rice elevator 5 by the mixed rice rocking and conveying device 33, and is again supplied from the mixed rice tank 35 to the rocking sorting device A. The paddy part is a paddy rocking conveyor
The water is returned to the paddy lift 4 by the paddy 34 and returned from the hulling tank 36 to the applicant's circuit.

In the above configuration, beside the swing sorting room 7,
The suction fan 9 driven by the drive motor 30 is arranged, and the suction fan 9 generates suction air of the hulling device D and also serves as a discharge fan for discharging the chaff.

 Next, a description will be given with reference to FIGS.

The paddy from the paddy tank 36 passes through a roll shutter,
It is supplied between the hulling rubber rolls 1a and 1b, is hulled, is widely dispersed by the collision plate 25, and falls in the suction sorting air path E.

While dropping in the suction sorting air path E, the dust wind in the swinging sorting chamber 7 arranged below the hulling device D is sucked as the sorting wind. The second product is sucked and moves up the suction sorting air passage E.

The lightest rice husk rises with the suction air and the trap airway T
Only the suction air flows from the air path where the wind speed sensor 15 is located to the suction air path 8, and is sucked from the suction air path 19 by the suction fan 9.

However, the rice husk is shaken off by the centrifugal force in the portion of the trap air passage T, deviates from the flow of the suction wind to the wind speed sensor 15, falls into the fuel tank 14, and extends from the fuel tank 14 to above the rice hull shutter 18. It is transported.

Then, as shown in FIG. 5, the rice husk shutter 18 enters from the fuel tank 14, and in the rice husk shutter 18, the rice hull is passed by the rotating shutter, but the discharge air is not passed. Discharge pipe
It falls into 29 and is transported to the rice husk room.

The second object such as pity is slightly mounted on the suction wind, rises, falls on the second gutter conveyor 13, and is carried out of the machine through the second discharge passage 21.

The mixed rice of brown rice and paddy falls on the first gutter conveyor 12 without being subjected to the suction wind, is conveyed rearward, and reaches the mixed rice elevator 5 from the mixed rice passage 31.

A suction port 24 and a suction port 23 are provided on an outer wall portion of the hulling device D.
In addition, a communication passage to the sliding selection chamber 7 is opened, and the suction air volume can be adjusted by adjusting the suction port 24 and the suction port 23.

According to the present invention, a wind speed sensor 15 is provided between the trap wind path T and the suction wind path 8, and when the wind speed sensor 15 detects a decrease in the air volume, the wind speed reduction state detected by the wind speed sensor 15 is detected. Is determined to last for a certain period of time.
Close the roll shutters a and 1b to stop the supply of the paddy, reduce the load on the hulling device D, or emit a suction fan alarm because the discharge portion of the suction fan 9 is often clogged with rice hulls. It is configured as follows.

When the wind power of the suction wind is restored by the treatment, the roll shutter is opened.

The detailed configuration of the wind speed sensor 15 is disclosed in FIG. 6, and a portion of the wind speed sensor 15 projects into the wind path inside the hulling device D, and a balance weight 26
The portion of the balance weight support rod 16 protrudes outside the body.

Further, when an appropriate amount of suction air is not generated in the suction air passage 8 and the weight of the balance weight 26 is superior,
The portion of the balance weight support rod 16 presses the wind switch 27, issues a suction fan alarm as described above, closes the shutters of the hulling rubber rolls 1a, 1b, stops the supply of paddy,
Stop the hulling and reduce the load.

In addition, as disclosed in FIG. 3, the air in the swing sorting chamber 7 below the hulling device D is sucked mainly as suction air, and most of the air passes through the suction sorting wind path E. Then, the air passes through the sorting air passage from the trap air passage T to the suction air passage 8. However, when it is necessary to adjust the screening air flow by the drying condition of the paddy or by the amount of paddy, the air flow adjusting valve 17 is used. By opening this portion, it is possible to use the suction air passing through the short-circuit air passage 6 that does not pass through the suction sorting air passage E.

As a result, the amount of air passing through the short-circuit air passage 6 without passing through the suction sorting passage E increases, so that the amount of air sorted through the suction sorting air passage E decreases.

The air volume control valve 17 is controlled by an operator by a control rod 17b and a control handle 17a.

(F) Effects of the Invention The present invention is configured as described above, and has the following effects.

In the hulling device that performs sorting by suction air, the outlet of the chaff shutter 18 in the hulling device is provided in the middle of the discharge pipe 29 of the suction fan 9 that sucks the selection wind. As in the conventional case, the rice husk is sucked by the suction air of the suction fan, and at the same time, the drawback that the selection suction air changes due to the influence of the rice husk suction air as in the case where the selection air is sucked is eliminated. It is something that can be done.

Further, in the hulling device in which the hulling device is operated by suction air, the wind speed sensor 15 is disposed in the middle of the suction air passage 8 for sucking the selection air, so that the discharge portion of the suction fan 9 is closed, and When the sorting air volume of the road E is reduced, the reduction of the air volume is detected by the wind switch 27, and an alarm can be issued and automatic control such as closing the shutters of the hulling rubber rolls 1a and 1b can be performed. It is no longer necessary to continue sorting for a long time.

In addition, since the suction fan is also used as the rice husk discharge fan and the selection suction air fan, when the discharge of the rice husk becomes defective, the selection performance is reduced and the operation is continued as it is. However, in the present invention, the wind speed sensor 15 was provided, and when the reduced wind power of the suction wind continued for a certain period of time, the supply of the paddy was stopped. By configuring to stop,
Automatically detects a decrease in air flow based on poor rice husk discharge,
Since the control can be performed, the unsorted brown rice that has not been sorted is not supplied to the swinging sorting apparatus A in the next stage.

Since it has comprised as Claim (2), the rocking sorting apparatus A is arrange | positioned at the lower part of a hulling apparatus, and the rocking sorting room 7 which communicates the periphery of this rocking and sorting apparatus A with the suction air path of a hulling apparatus. Covered with
A suction air path is provided from the swinging separation chamber 7 to pass through the suction selection air path E and communicate with the suction fan 9, and a short-circuit air path 6 is provided in parallel with the suction air path. Since the valve is provided, dust in the swing sorting chamber 7 in which the swing sorting device A is disposed can be discharged by the suction fan 9 together with the suction air, and the working environment can be improved.

Further, if the suction air volume is adjusted by the air volume control valve 17, both the second air volume and the first air volume can be adjusted at the same time, so that the operability is improved.

Further, by providing the air volume control valve 17 at a position closer to the suction fan 9 than the suction selection air path E, even if the opening area is adjusted by the air volume control valve 17, the wind power adjustment effect can be increased. It was done.

[Brief description of the drawings]

FIG. 1 shows the arrangement of the hulling device D at the top and the swinging sorting room 7 at the bottom.
2 is a side view, FIG. 3 is a front sectional view of the hulling device D, and FIG. 4 is a rubber roll of the hulling device D. FIG. 5 shows a suction air passage 8, a suction fan 9, and a discharge pipe.
FIG. 6 is an enlarged front view of the wind speed sensor 15, and FIG. 7 is an enlarged front view of the wind speed sensor 15.
FIG. 5 is a flowchart of an automatic control mechanism by a wind switch 27 attached to the apparatus. A: Swing sorting device D: Hulling device E: Suction sorting air passage T: Trap air passage 8: Suction air passage 9: Suction fan 18: Rice hull shutter

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takaaki Sugimura 428 Enami, Okayama-shi, Okayama Prefecture Inside of Seirai Kogyo Co., Ltd. (72) Inventor Takamichi Shimomura 1-32 Chayacho Kita-ku Osaka-shi (56) References JP-A-60-75371 (JP, A) JP-A-2-258071 (JP, A) JP-B-53-9974 (JP, B1) JP-B-48-12391 (JP, A) Y1)

Claims (2)

(57) [Claims] In a hulling device for performing sorting after suctioning by a hulling device by suction air, a rice hull shutter in the hulling device is provided in a middle portion of a discharge pipe 29 of a suction fan 9 for sucking the sorting wind. At the same time as opening the outlet of 18, the wind speed sensor 15 is arranged in the middle of the suction air path 8 for sucking the sorting wind, and when the state of reduced wind power of the suction wind continues for a certain time or more, the supply of the paddy is stopped. A hulling device characterized by having been configured as follows. 2. A hulling device according to claim 1, wherein a swing sorting device A is disposed below the hulling device, and the periphery of the swing sorting device A communicates with a suction air path of the hulling device. And a suction air passage communicating with the suction fan 9 from the swing selection chamber 7 through the suction selection air passage E. The short-circuit air passage 6 is provided in parallel with the suction air passage. A hulling device, wherein a wind control valve is provided in the short-circuit air passage 6.