Preparation facility

Abstract

To properly set an interval between husking rolls in accordance with a work situation of a rice sorting machine.SOLUTION: In a preparation facility, a husking / sorting machine is connected to a rice sorting machine via communication. The husking / sorting machine is provided with husking rolls. The rice sorting machine is provided with a weight scale for small rice that detects weight of small rice sorted through a sorting cylinder. When weight for small rice per unit time is above a set value, control by which an interval between the husking rolls is reduced is performed.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a preparation facility including a paddy sorting machine and a rice sorting machine.

Background Art

[0002] A technique for communicatively connecting a paddy sorting machine and a rice sorting machine is described in Patent Document 1.

Prior Art Document

Patent Document

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] An object of the present invention is to appropriately adjust the gap between paddy rolls according to the working conditions of a rice sorting machine.

Means for Solving the Problems

[0005] To achieve the above object, a first invention communicatively connects a paddy sorting machine and a rice sorting machine. The paddy sorting machine is provided with paddy rolls, and the rice sorting machine is provided with a weight meter for millet that detects the weight of millet sorted by a sorting cylinder. When the weight of millet per unit time is equal to or greater than a set value, control is performed to reduce the gap between the paddy rolls. The preparation facility is characterized by this.

Effects of the Invention

[0006] According to the present invention, when there is a large amount of rice (unhulled rice), it is often difficult to increase the husking rate, so appropriate countermeasures can be taken.

Brief Description of the Drawings

[0007]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Embodiments for Carrying Out the Invention

[0008] The rice husk separator A of the present embodiment will be described.

[0009] A rice storage hopper 1 for storing rice is provided on one side of the left and right of the rice husk separator A. A rice supply shutter 2 is provided at the bottom of the rice storage hopper 1. Below the rice supply shutter 2, a pair of left and right rice husk rolls 3 for removing the husk from the rice are provided.

[0010] Below the rice husk roll 3, a transfer shelf 4 for transferring the mixed rice of the husked rice and brown rice to the center side of the left and right of the machine body is provided. The discharge side of the transfer shelf 4 faces a winnowing section 5 for sucking the rice husk from the mixed rice.

[0011] On the upper part of the winnowing section 5, a suction fan 6 for discharging the sucked rice husk from the dust exhaust cylinder 36 to the outside of the machine body is provided.

[0012] Below the winnowing section 5, a screw 7 for mixed rice for conveying the mixed rice that has fallen from the winnowing section 5 to the rear part of the machine body is provided. Above the screw 7 for mixed rice, a screw 8 for chaff into which the chaff in the mixed rice flows is provided. The screw 8 for chaff is conveyed toward the front of the machine body and is configured to be stored in the rice storage hopper 1 by the return slowdown 9.

[0013] At the rear part of the machine body, a bucket-type elevator 10 for mixed rice for winnowing the mixed rice conveyed by the screw 7 for mixed rice is provided.

[0014] On the discharge side of the elevator 10 for mixed rice, a mixed rice tank 11 for temporarily storing the mixed rice is provided. Below the mixed rice tank 11, a transfer trough 12 for transferring the mixed rice is provided, and the mixed rice is supplied from the transfer end side of the transfer trough 12 to the multi-stage oscillating sorting plate 13.

[0015] The plate surface of the oscillating sorting plate 13 is sorted into paddy, mixed rice, and polished brown rice as shown in Fig. 3. On the discharge side of the oscillating sorting plate 13, a brown rice partition plate 14 for partitioning the mixed rice and polished brown rice and a paddy partition plate 15 for partitioning the paddy and mixed rice are provided. When the circulating discharge switching valve 32 is on the discharge side, the brown rice partitioned by the brown rice partition plate 14 is conveyed by the polished brown rice elevator 16. When the circulating discharge switching valve 32 is on the circulating side, it is supplied from the mixed rice flow path 17 to the mixed rice screw 7 and circulates in the machine body again. The mixed rice is supplied from the mixed rice flow path 17 to the mixed rice screw 7 and circulates in the machine body again. The paddy is supplied from the paddy flow path 18 to the return slowdown 9 and returned to the paddy storage hopper 1.

[0016] The transmission configuration will be described.

[0017] Power is transmitted from the main motor 19 provided on one side of the machine body on the side of the paddy rubbing roll 3 to the drive shaft 3a of the paddy rubbing roll 3 and the transfer shelf 4 by a transmission belt 20. Next, it is configured to be transmitted to the polished brown rice elevator 16 by the transmission belt 20. The main motor 19 is a variable-speed motor and can be controlled by an inverter or the like.

[0018] The mixed rice screw 7 and the mixed rice elevator 10 are driven by a variable-speed conveying drive motor 21. Also, the drive shaft of the oscillating sorting plate 13 is driven by a variable-speed oscillating drive motor 31. Also, the return slowdown 9, the chaff screw 8, and the suction fan 6 are driven by a variable-speed suction fan drive motor 33.

[0019] The opening degrees of the mixed rice tank 11 and the paddy supply shutter 2 are configured to be mechanically or electrically interlocked. When the amount of mixed rice stored in the mixed rice tank 11 increases, the opening degree of the paddy supply shutter 2 decreases, and the amount of paddy supplied to the paddy rubbing roll 3 decreases.

[0020] A first nozzle 22 for blowing air onto the remaining rice is provided at the bottom of the mixed rice elevator 10, and a second nozzle 23 is provided at the bottom of the polished brown rice elevator 16. The first nozzle 22 and the second nozzle 23 are respectively connected to a first nozzle air pipe 26 and a second nozzle air pipe 27 branched from a branch valve 25 connected to a common compressor 24.

[0021] The brown rice partition board 14 is configured to be manually slidable in the left - right direction, and can be adjusted steplessly between the low - efficiency side n1 and the high - efficiency side n2 shown in FIG. 3. The position of the brown rice partition board 14 is configured to be detectable by, for example, a slide - type position sensor 35.

[0022] Next, the operation panel S will be described.

[0023] A power switch 29, an operation - start switch 34a, a stop switch 34b, and an operation lever 30 are provided.

[0024] As shown in FIG. 5, the control unit C of the paddy - folding sorter A inputs information from various sensors and outputs control information to various motors.

[0025] Next, the paddy - folding operation will be described.

[0026] When the operation - start switch 34a is turned ON, the main motor 19 is driven, and the paddy - folding roll 3, the suction fan 6, the slower 9, the chaff screw 8, and the elevator 16 for finished brown rice start to be driven.

[0027] When the operator operates the operation lever 30 from the initial position L1 to the circulation position L2, the paddy - supply shutter 2 opens, and the paddy in the paddy storage hopper 1 is supplied between the paddy - folding rolls 3 to start threshing. At the same time, the conveyance drive motor 21 and the swing drive motor 31 start to be driven. The threshed mixed rice is supplied to the winnowing section 5 on the transfer shelf 4 and is affected by the suction fan 6. The rice husks are discharged outside the machine, the chaff flows into the chaff screw 8, returns through the return slower 9, and is returned to the paddy storage hopper 1. The mixed rice falls onto the mixed - rice screw 7, is supplied to the mixed - rice elevator 10, and is then winnowed. The mixed rice supplied from the mixed - rice elevator 10 to the mixed - rice tank 11 and stored is sequentially supplied from the transfer trough 12 to the swing sorting plate 13 and sorted.

[0028] When the operator operates the operation lever 30 from the circulation position L2 to the discharge position L3, the circulation discharge switching valve 32 switches from the circulation position to the discharge position, and the polished brown rice discharged from the rocking and lifting side from the brown rice partition plate 14 set at an arbitrary position by the operator is discharged outside the machine from the polished brown rice elevator 16 and supplied to the rice sorter B. The mixed rice discharged from between the husk partition plate 15 and the brown rice partition plate 14 is returned to the spiral 7 for mixed rice through the mixed rice flow path 17, and is re-sorted by the rocking sorting plate 13 again through the elevator 10 for mixed rice. The husks discharged from the rocking and swinging-down side from the husk partition plate 15 are returned from the husk flow path 18 through the return slowdown 9 to the husk storage hopper 1.

[0029] When the operator sets the adjustment position of the brown rice partition plate 14, for example, on the low-efficiency side. In that case, the amount of polished brown rice discharged to the polished brown rice elevator 16 decreases, and the amount of mixed rice returned to the spiral 7 for mixed rice increases. And the amount of mixed rice in the mixed rice tank 11 is not likely to decrease, and the circulation amount of the mixed rice in the machine increases. Therefore, by controlling the conveying drive motor 21 so as to decrease the rotation speeds of the spiral 7 for mixed rice and the elevator 10 for mixed rice, it is possible to make the brown rice in the mixed rice less likely to be damaged. Also, when the adjustment position of the brown rice partition plate 14 is set on the high-efficiency side, since the amount of polished brown rice discharged to the polished brown rice elevator 16 increases, by controlling the conveying drive motor 21 so as to increase the rotation speeds of the spiral 7 for mixed rice and the elevator 10 for mixed rice, the discharge of the polished brown rice outside the machine can be promoted.

[0030] When the husks in the husk hopper 1 are exhausted, the circulation discharge switching valve 32 automatically switches from the discharge side to the circulation side, circulates the remaining mixed rice in the machine body, dehusks the unhusked husks, and performs a residual rice processing step of making all of them brown rice for a predetermined time. After the predetermined time, the circulation discharge switching valve 32 automatically switches from the circulation side to the discharge side and discharges the remaining polished brown rice outside the machine. At this time, by controlling the rocking drive motor 31 so as to increase the rocking rotation speed of the rocking sorting plate 13, the discharge operation of the polished brown rice outside the machine can be promoted. Also, during the residual rice processing step, by controlling the suction fan drive motor 33 so as to reduce the rotation speed of the suction fan 9, the amount of brown rice scattered from the dust exhaust cylinder 36 can be reduced.

[0031] During the operation of discharging to the outside, the compressor 24 is driven to blow air onto the rice remaining at the bottoms of the elevator 10 for paddy mixture and the elevator 16 for polished rice, thereby reducing the rice remaining at the bottoms. The air supply time varies depending on the variety. For example, for polished rice and the like, the standard injection time is used, while for hulled barley and the like, since there is a lot of dust, the injection time is lengthened.

[0032] Regarding the control of the conveying drive motor 21 that changes the rotation speed of the screw 7 for paddy mixture according to the adjustment position of the brown rice partition plate 14 by the operator, that is, the detection position of the position sensor 35, for example, when hulling short-grain and long-grain paddy, the conveying drive motor 21 may be controlled to reduce the rotation speed of the screw 7 for paddy mixture during the hulling and sorting operation of long-grain paddy where broken rice is likely to occur. In this case, a high-speed mode and a low-speed mode switch for the conveying drive motor 21 may be provided.

[0033] Other characteristic parts will be described.

[0034] When starting the hulling operation with the hulling roll 3, by increasing the rotation speed of the main motor 19, the rotation speed of the hulling roll 3 can be increased to improve the hulling rate, and the early stabilization of the initial operation state can be achieved.

[0035] An air volume sensor 37 is provided in the dust exhaust pipe 36. When the air volume sensor 37 detects a reduction in the air volume, the suction fan drive motor 33 is driven to reduce the rotation speed of the chaff screw 8.

[0036] The hulling and sorting machine A and the rice separator B are configured to be able to communicate, and the swing drive motor 31 can be controlled to change the swing rotation speed of the swing sorting plate 13 according to the efficiency of the rice separator B. Alternatively, the main motor 9 can be controlled.

[0037] When the rice load cell 40 detects that the amount of millet being sorted by the sorting cylinder 43 of the millet sorter B is relatively large in terms of unit time and efficiency, by controlling the gap between the husk-rolling rolls 3 to be slightly closed, when there is a large amount of millet (paddy rice), it is often difficult to increase the husk removal rate, so it can be appropriately handled.

[0038] A transformer (not shown) is provided between the original power supply and the primary side of the electromagnetic contactor (not shown) of the husk-rolling sorter A. The power supply of the controller C and various motors are driven by a 200V power supply stepped down by the transformer, and the secondary side of the electromagnetic contactor can be configured by connecting a 400V specification main motor.

[0039] When the gap setting of the husk-rolling rolls 3 is started in the state of wheat, that is, in a gap where the husk cannot be removed between the rolls, the rotation speed of the sorting cylinder 43 of the millet sorter B is switched to the one for wheat (for example, the high-speed side).

[0040] However, when the gap adjustment switch 42 of the husk-rolling rolls is used to perform the closing operation of the gap between the husk-rolling rolls 3, the rotation speed of the sorting cylinder 43 of the millet sorter B is returned from the one for wheat to the one for rice (for example, the low-speed side).

Explanation of Signs

[0041] 3 Husk-rolling rolls 7 Screw for mixed rice 13 Oscillating sorting plate 14 Brown rice partition plate 40 Load cell for millet 43 Sorting cylinder A Husk-rolling sorter B Millet sorter

Claims

【Claim 1】 A preparation facility characterized by communicatively connecting a husk folding separator and a rice separator. The husk folding separator is equipped with husk folding rolls, and the rice separator is provided with a weight meter for millet that detects the weight of millet to be separated by a separation cylinder. When the weight of millet per unit time is equal to or greater than a set value, control is performed to reduce the gap between the husk folding rolls.

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