Huller and sorter

Abstract

To solve the problems in which: screening condition between rice husk and husked rice is, when a swinging sorting board is used, occasionally good or unstable depending on quality of harvest of rice husk and varieties thereof; and proper rice husking and sorting should be performed according to quality of harvest and varieties.SOLUTION: A rice husking sorting apparatus comprises: a husking part (2); a swinging sorting part (15); and a circulation discharge changeover valve (7) which changes the grain sorted by the swinging sorting part (15) between circulation in the apparatus and discharging to the outside of the apparatus. Switching operation between circulation and discharging in the circulation discharge changeover valve (7) is performed by manual operation of a control lever (11) or automatic changeover of the control part in which selection means (12) is provided to select a manual mode where circulation and discharging are switched by manual operation of the control lever (11) and an automatic mode where circulation and discharging are switched by the control part (30).SELECTED DRAWING: Figure 9

Description

[Technical Field]

[0001] The present invention relates to a rice huller and sorter. [Background technology]

[0002] Patent Document 1 discloses a technology for automatically switching between circulation and discharge in a rice huller and sorter.

[0003] Patent Document 2 discloses a technique for manually switching between circulation and discharge in a rice huller and sorter. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 5370563 [Patent Document 2] Patent No. 6331000 Summary of the Invention [Problem to be solved by the invention]

[0005] Depending on the rice crop and variety, the sorting state of the oscillating sorting plate between the unhulled and brown rice may be stable or stable. If discharge is automatic when the brown rice sorting state is unstable, more than the specified amount of unhulled rice will be mixed in with the brown rice discharged from the machine, resulting in a decrease in the quality of the finished brown rice. Also, if discharge is manual when the brown rice sorting state is stable, the operator will have to manually switch between discharge and circulation, making operation cumbersome.

[0006] An object of the present invention is to provide a rice huller and sorter that performs appropriate hulling and sorting according to crop yield and variety. [Means for solving the problem]

[0007] In order to solve this problem, the invention described in claim 1 is as follows: Hulling section (2) and shaking sorting section ( 6 ) and the shaking sorting section ( 6In a rice huller and sorter equipped with a circulation discharge switching valve (7) that switches whether the grain sorted by the huller is circulated in the machine or discharged outside the machine, The circulation / discharge switching valve (7) is configured to perform the circulation / discharge switching operation by manually operating an operating lever (11) or automatically switching by a control unit. A selection means (12) is provided for selecting between a manual mode in which circulation and discharge are switched by manual operation using an operating lever (11) and an automatic mode in which circulation and discharge are switched by a control unit (30). 、 a semi-automatic mode in which the circulation / discharge switching valve (7) is manually operated by an operating lever (11) when switching from circulation to discharge, and is automatically operated by a control unit (30) when switching from discharge to circulation; an operation mode switching dial (12) configured to be switchable between a manual mode position, a semi-automatic mode position, and an automatic mode position; A wheat selection switch (42) is provided for selecting the work of sorting wheat, and a long grain selection switch (43) is provided for selecting the work of hulling and sorting long grains, When the wheat selection switch (42) is operated, the machine switches to automatic mode regardless of the operating position of the operation mode switching dial (12). When the long grain selection switch (43) is selected, the operation mode is switched to manual mode regardless of the operating position of the operation mode changeover dial (12). It is characterized by:

[0008]

[0009] Claim 2 The described invention is Claim 1 In the described invention, A storage tank (16) is provided to store the grain that has passed through the hulling unit (2), and the grain is transferred from the storage tank (16) to the shaking sorting unit ( 6 ) and a grain sensor for detecting the amount or volume of grain in the storage tank (16); When the circulation discharge switching valve (7) is in circulation mode, if the grain sensor detects that the grain amount or volume exceeds a predetermined amount, the valve switches from circulation to discharge in the automatic mode, and maintains circulation in the manual mode and semi-automatic mode. When the circulation discharge switching valve (7) is in the discharge position and the grain sensor detects that the amount or volume of grain is less than a predetermined amount, the system switches from discharge to circulation in the automatic mode and semi-automatic mode, and maintains discharge in the manual mode. [Effects of the Invention]

[0010] According to the present invention, appropriate hulling and sorting can be performed according to the crop pattern and variety. [Brief explanation of the drawings]

[0011] [Figure 1] A diagram explaining the inside of the rice huller and sorter seen from the inside [Figure 2] A perspective view of the rice huller and sorter seen from the front [Figure 3] Operation panel diagram [Figure 4] Diagram showing the operating lever and guide [Figure 5] Block Diagram [Figure 6] flowchart [Figure 7] flowchart [Figure 8] flowchart [Figure 9] Diagram showing the operation mode switching dial [Figure 10] A diagram showing the oscillating sorting plate and its action DETAILED DESCRIPTION OF THE INVENTION

[0012] A rice huller and sorter according to an embodiment of the present invention will be described below with reference to the drawings.

[0013] FIG. 1 is a diagram illustrating the inside of a rice huller and sorter as seen from the front.

[0014] On the left side of the machine body, there are provided a storage hopper 1 for storing grain, a pair of hulling rolls 2 on the left and right, a swinging shelf 19, and a main motor 20.

[0015] A winnowing section 3, a suction fan 4 and a dust extraction tube 5 are provided in the center of the machine body.

[0016] On the right side of the machine are a multi-stage oscillating sorting plate 6 and a circulation discharge switching valve 7. As shown in Figure 10, the oscillating sorting plate 6 has many recesses 6a on its surface, and when it oscillates it separates the rice into a paddy layer, a mixed rice layer, and a brown rice layer. If the amount of mixed rice supplied to the oscillating sorting plate 6 is small, the sorting of paddy and brown rice will not be stable, and more than a certain amount of paddy will be mixed into the brown rice layer, lowering the grade of the finished brown rice; therefore, it is necessary to supply more than a certain amount of mixed rice to the oscillating sorting plate 6.

[0017] A finishing rice elevator 8 is provided on the right end of the machine body.

[0018] Figure 2 shows the external appearance of the rice huller and sorter as seen from the front at an angle.

[0019] A hulling section cover 9 that covers the front of the hulling roll 2 is provided on the left front side of the machine body. An operation panel 10, an operation lever 11, and an operation mode switching dial 12 are provided at the upper center of the left and right sides of the machine body.

[0020] A return grain thrower 13 is provided at the bottom center of the left and right sides of the machine body.

[0021] A swinging sorting unit cover 14 for covering the front of the swinging sorting plate 6 is provided on the right front side of the machine body.

[0022] A mixed rice elevator 15 and a storage tank 16 are provided at the rear of the machine.

[0023] FIG. 3 is a diagram showing the operation panel 10 as viewed from the front.

[0024] An open adjustment switch 17a is provided to adjust the gap between the hulling rolls 2 to the open side, and a close switch 17b is provided to adjust the gap to the closed side. An indicator 18 is provided between the open adjustment switch 17a and the close adjustment switch 17b to show the gap between the hulling rolls 2. The word "wheat" indicates that the gap between the hulling rolls 2 is at its widest position.

[0025] There is provided a load monitor 21 that indicates the load state of the main motor 20. There is also provided an operation switch 22, a stop switch 23, a power switch 24, and a power lamp 24a that indicates whether the power is on or off.

[0026] FIG. 4 shows a guide 25 for operating the operating lever 11 in the left and right directions.

[0027] In this embodiment, there are provided a start / stop position S located on the left side, a circulation position J located in the center, and a discharge position H located on the right side. A start / stop position detection switch S1 is provided to detect when the operating lever 11 is located at the start / stop position S, and a discharge position detection switch H1 is provided to detect when the operating lever 11 is located at the discharge position H. When the operating lever 11 does not detect either the start / stop position switch S1 or the discharge position switch H1, it is in the circulation position J.

[0028] The operation mode switching dial 12 is configured to be switchable among a manual mode position, a semi-automatic mode position, and an automatic mode position, as shown in Figure 9. A manual mode lamp 12a, a semi-automatic mode lamp 12b, and an automatic mode lamp 12c are provided, and they light up to indicate which mode is selected.

[0029] 5 is a block diagram in which information from a first grain sensor 26 that detects whether the amount of grain in the storage tank 16 is above a predetermined amount, a second grain sensor 27 that detects whether the amount is below the predetermined amount, a load current detection sensor 28 that detects the load current value of the main motor 20, a start / stop position switch S1, a discharge position switch H1, an operation mode selector dial 12, an operation switch 22, and a stop switch 23 is input to a control unit 30. The control unit 30 outputs to the main motor 20, a huller roll gap adjustment motor 40, and a circulation discharge switching valve 7.

[0030] Next, the flow of grains (mainly rice husks) in the rice huller and sorter will be explained.

[0031] First, the manual mode will be described with reference to FIG.

[0032] The power switch 24 is turned on and the operation mode switching dial 12 is switched to manual mode. When the operation switch 22 is operated, the main motor 20 and the threshing roll gap adjustment motor 40 start, and the threshing roll 2 is driven. When the operator operates the operation lever 11, which is in the start / stop position, to the circulation position J, the supply shutter 31 opens and the rice grains in the storage hopper 1 are supplied to the threshing roll 2, and the swinging clutch 32 is turned on, driving the swinging sorting plate 6.

[0033] The rice in the storage hopper 1 is supplied to the hulling roll 2, where it is hulled, and then falls onto the oscillating shelf 19. The mixed rice on the oscillating shelf 19 is supplied to the winnowing section 3, and the husks are sucked in by the suction fan 4 and discharged outside the machine through the dust collector 5. The rice husks are lifted by the suction fan 4 and flow into the return grain thrower 13, which returns them to the storage hopper 1. The mixed rice of rice and brown rice falls and is transported towards the rear of the machine by the mixed rice spiral 35, where it is lifted by the mixed rice elevator 15 and stored in the storage tank 16. The mixed rice discharged from the storage tank 16 has straw scraps and broken cans separated and removed in the transfer trough 36 before being supplied to the multi-stage oscillating sorting plate 6. When the circulation discharge switching valve 7 is set to circulation, the mixed rice discharged from the oscillating sorting plate 6 flows down the circulation shelf 37, is returned to the mixed rice spiral 35, and is again supplied to the oscillating sorting plate 6 by the mixed rice elevator 15. The unhulled rice sorted by the oscillating sorting plate 6 flows down the unhulled rice return shelf 38 and is returned to the storage hopper 1 by the return grain thrower 13.

[0034] The operator, while observing the sorting state of the mixed rice on the oscillating sorting plate 6, determines that the sorting state on the oscillating sorting plate 6 has stabilized and switches the operating lever 11 from circulation position J to discharge position H. This causes the circulation discharge switching valve 7 to switch from circulation to discharge, transitioning from circulation operation to discharge operation, and the sorted brown rice is discharged outside the machine by the finished rice elevator 8.

[0035] If the operator determines that the storage hopper 1 is empty of unhulled rice during discharge operation and that the amount of mixed rice being supplied to the oscillating sorting plate 6 has decreased, he switches the control lever 11 from discharge position H to circulation position J, and switches to circulation operation. During circulation operation, all of the unhulled rice contained in the remaining rice is hulled by the huller roll 2. If the operator determines that all of the remaining rice has become brown rice, he switches the control lever 11 from circulation position J to discharge position H, and discharges the remaining rice outside the machine. Once the remaining rice has been discharged outside the machine, he returns the control lever 11 to the start / stop position S and operates the stop switch 23 to end the hulling and sorting operation.

[0036] Next, semi-automatic driving will be explained based on FIG.

[0037] The power switch 24 is turned on, and the operation mode switching dial 12 is switched to semi-automatic mode. When the operation switch 22 is operated, the main motor 20 starts, and the hulling roll 2 is driven. When the operator operates the operation lever 11 from the start / stop position S to the circulation position J, the supply shutter 31 opens, the swinging clutch 32 is engaged, and the swinging sorting plate 6 is driven.

[0038] The rice in the storage hopper 1 is supplied to the hulling roll 2, where it is hulled, and then falls onto the oscillating shelf 19. The mixed rice on the oscillating shelf 19 is supplied to the winnowing section 3, and the husks are sucked in by the suction fan 4 and discharged outside the machine through the dust collector 5. The rice husks are lifted by the suction fan 4 and carried to the return grain thrower 13, which returns them to the storage hopper 1. The mixed rice of rice and brown rice falls and is transported towards the rear of the machine by the mixed rice spiral 35, where it is lifted by the mixed rice elevator 15 and stored in the storage tank 16. The mixed rice discharged from the storage tank 16 has straw scraps and broken cans separated and removed in the transfer trough 36, and is then supplied to the multi-stage oscillating sorting plate 6. When the circulation discharge switching valve 7 is set to circulation, the mixed rice discharged from the oscillating sorting plate 6 flows down the circulation shelf 37, is returned to the mixed rice spiral 35, and is again supplied to the oscillating sorting plate 6 by the mixed rice elevator 15. The unhulled rice sorted by the oscillating sorting plate 6 flows down the unhulled rice return shelf 38 and is returned to the storage hopper 1 by the return thrower.

[0039] The operator, while observing the sorting state of the mixed rice on the oscillating sorting plate 6, determines that the sorting state on the oscillating sorting plate 6 has stabilized and switches the operating lever 11 from circulation position J to discharge position H. This causes the circulation discharge switching valve 7 to switch from circulation to discharge, transitioning from circulation operation to discharge operation, and the sorted brown rice is discharged outside the machine by the finished rice elevator 8.

[0040] During discharge operation, the storage hopper 1 becomes empty of rice grains, the amount of mixed rice supplied to the oscillating sorting plate 6 is reduced, and when the second grain sensor 27 detects that the amount of mixed rice in the storage tank 16 has fallen below a predetermined amount, the circulation discharge switching valve 7 switches from discharge to circulation while the operating lever 11 remains in discharge position H, and the system switches to circulation operation.

[0041] During circulation operation, all of the unhulled rice contained in the remaining rice is hulled by the hulling roll 2. When the operator determines that all of the remaining rice has become brown rice, he or she returns the control lever 11 from discharge position H to circulation position J, and then switches it back to discharge position H, thereby shifting to discharge operation and discharging the remaining rice outside the machine. Once the remaining rice has been discharged outside the machine, the control lever 11 is returned to start / stop position S and the stop switch 23 is operated to end the hulling and sorting operation.

[0042] Next, the automatic mode will be described with reference to FIG.

[0043] The power switch 24 is turned on and the operation mode switching dial 12 is switched to automatic mode. When the operation switch 22 is operated, the main motor 20 and the threshing roll gap adjustment motor 40 start, and the threshing roll 2 is driven. When the operator operates the operation lever 11, which is in the start / stop position, to the circulation position J, the supply shutter 31 opens, the swing clutch 32 is engaged, and the swinging sorting plate 6 is driven.

[0044] The rice in the storage hopper 1 is supplied to the hulling roll 2, where it is hulled, and then falls onto the oscillating shelf 19. The mixed rice on the oscillating shelf 19 is supplied to the winnowing section 3, and the husks are sucked in by the suction fan 4 and discharged outside the machine through the dust collector 5. The rice husks are lifted by the suction fan 4 and carried to the return grain thrower 13, which returns them to the storage hopper 1. The mixed rice of rice and brown rice falls and is transported towards the rear of the machine by the mixed rice spiral 35, where it is lifted by the mixed rice elevator 15 and stored in the storage tank 16. The mixed rice discharged from the storage tank 16 has straw scraps and broken cans separated and removed in the transfer trough 36, and is then supplied to the multi-stage oscillating sorting plate 6. When the circulation discharge switching valve 7 is in circulation position J, the mixed rice discharged from the oscillating sorting plate 6 flows down the circulation shelf 37, is returned to the mixed rice spiral 35, and is again supplied to the oscillating sorting plate 6 by the mixed rice elevator 15. The unhulled rice sorted by the oscillating sorting plate 6 flows down the unhulled rice return shelf 38 and is returned to the storage hopper 1 by the return grain thrower 13.

[0045] When the first grain sensor 26 in the storage tank 16 detects that the amount of mixed rice is equal to or greater than a predetermined amount, the circulation discharge switching valve 7 switches from circulation to discharge, the operation shifts from circulation to discharge, and the brown rice is discharged outside the machine through the finishing elevator 8.

[0046] During discharge operation, the storage hopper 1 becomes empty of rice grains, the amount of mixed rice supplied to the oscillating sorting plate 6 is reduced, and when the second grain sensor 27 detects that the amount of mixed rice in the storage tank 16 has fallen below a predetermined amount, the circulation discharge switching valve 7 switches from discharge to circulation while the operating lever 11 remains in circulation position J, and the system enters circulation operation.

[0047] During circulation operation, all of the rice grains contained in the remaining rice are hulled by the hulling roll 2. After a predetermined time (for example, 5 minutes) has passed, the circulation discharge switching valve 7 switches from circulation to discharge, and the machine shifts from circulation operation to discharge operation, discharging the remaining rice outside the machine. After a predetermined time (for example, 5 minutes) has passed, the discharge operation automatically stops, and the hulling and sorting operation ends.

[0048] Next, switching from the automatic mode to the manual mode or the semi-automatic mode during the hulling and sorting operation will be described.

[0049] When the condition of the rice grains is poor, for example when there is a lot of light rice grains, it is difficult to fill the storage tank 16 and the sorting state of the oscillating sorting plate 6 is often unstable. In such a case, if the automatic mode is used when starting the hulling and sorting operation, the circulation discharge switching valve 7 will switch from circulation to discharge while the sorting state of the oscillating sorting plate 6 is poor, causing a problem in which more than a predetermined amount of rice grains are mixed in with the brown rice and the rice is discharged outside the machine.

[0050] In such cases, the operator can visually check the hulling and sorting status immediately after hulling begins and switch from automatic mode to manual mode or semi-automatic mode, thereby preventing more than a predetermined amount of poorly sorted rice from being discharged outside the machine against the operator's wishes.

[0051] Next, switching from the manual mode or semi-automatic mode to the automatic mode during hulling and sorting operation will be described.

[0052] The operator, who cannot determine the condition of the rice grains at the start of the hulling and sorting operation, first starts the operation in manual mode or semi-automatic mode.

[0053] After the hulling and sorting operation starts, the state of storage in the storage tank 16 and the state of sorting between unhulled and brown rice on the oscillating sorting plate 6 are visually checked, and if it is determined that the sorting state is good, the system switches to automatic mode. From then on, the hulling and sorting operation can be carried out fully automatically until the end.

[0054] In this way, the operator can select the desired operating mode depending on the condition of the rice grains, thereby enabling appropriate hulling and sorting operations to be carried out.

[0055] Next, the control when the hulling and sorting operation is started and the circulation operation is shifted to the discharge operation in the automatic mode will be described.

[0056] After the discharge operation begins, brown rice is discharged outside the machine, but depending on the type of unhulled rice, the amount of mixed rice newly supplied to storage tank 16 may not balance the amount of brown rice discharged outside the machine. For example, even if there is a large amount of broken rice being discharged outside the machine and hulling is continuing with hulling roll 2, if second grain sensor 27 detects that the amount of grain in storage tank 16 is below a predetermined amount, circulation discharge switching valve 7 will switch to circulation operation, and then the amount of mixed rice in storage tank 16 will immediately increase, causing first grain sensor 26 to detect that the amount is above the predetermined amount and switch from circulation operation to discharge operation, resulting in a so-called hunting situation.

[0057] Therefore, after switching to discharge operation, even if the second grain sensor 27 temporarily detects a grain amount below a predetermined amount, the system is controlled so as not to immediately switch to circulation operation. For example, if the second grain sensor 27 continues to detect the amount of grain below a predetermined amount for a set time (e.g., 10 seconds), the system is controlled to switch to circulation operation. Alternatively, if the second grain sensor 27 detects the amount of grain below a predetermined amount multiple times (e.g., 5 times) within a set time (e.g., 5 minutes), the system is controlled to switch to circulation operation.

[0058] Alternatively, the load current value of the main motor 20 may be detected, and when the second grain sensor 27 detects that the amount of grain is below a predetermined amount and the load current value is below the set value, the system may switch to circulation operation.

[0059] This makes it possible to stabilize the operation of the circulation discharge switching valve 7 in an unstable state within a set time after the start of discharge operation in the automatic mode.

[0060] After the discharge operation starts and the set time has elapsed, the system is configured to transition to circulation operation only upon detection by the second grain sensor 27. This reduces the discharge of unhulled rice outside the machine when the sorting by the oscillating sorting plate 6 becomes temporarily unstable due to a decrease in the amount of grain in the storage tank 16.

[0061] If the discharge operation and circulation operation are repeated within a set time in the automatic mode, a notification is sent to change to the manual mode or semi-automatic mode. Alternatively, the operation mode is switched to the semi-automatic mode, and the automatic mode lamp 12c is switched to the semi-automatic mode lamp 12b.

[0062] The above explanation has been mainly about rice husks, but when sorting wheat, operating the wheat selection switch 42 will switch to automatic mode regardless of the operating position of the operation mode switching dial 12, and the automatic mode lamp 12c will light up.

[0063] When hulling and sorting long grains, if the long grain selection switch 43 is selected, the operation mode is switched to the manual mode regardless of the operating position of the operation mode changeover dial 12, and the manual mode lamp 12a is turned on. [Explanation of symbols]

[0064] 2 Hulling section (hulling roll) 7 Circulation discharge switching valve 11 Operating lever 12 Operation mode switching dial 6 Oscillating sorting section (oscillating sorting plate) 30 Control Unit

Claims

1. A rice huller and sorter including a hulling section (2), a swinging sorting section (6), and a circulation / discharge switching valve (7) for switching between circulating the grain sorted by the swinging sorting section (6) within the machine or discharging it outside the machine, The circulation / discharge switching valve (7) is configured to perform the circulation / discharge switching operation by manual operation of the operating lever (11) or automatic switching by the control unit, A selection means (12) is provided for selecting between a manual mode in which circulation / discharge is switched by manual operation using an operating lever (11) and an automatic mode in which circulation / discharge is switched by a control unit (30), The circulation / discharge switching valve (7) is manually operated by an operating lever (11) when switching from circulation to discharge, and is provided with a semi-automatic mode in which the control unit (30) automatically operates the valve when switching from discharge to circulation; An operation mode switching dial (12) is provided which is switchable between a manual mode position, a semi-automatic mode position, and an automatic mode position; A wheat selection switch (42) for selecting the work of sorting wheat and a long grain selection switch (43) for selecting the work of hulling and sorting long grain are provided. When the wheat selection switch (42) is operated, the mode is switched to automatic mode regardless of the operating position of the operation mode switching dial (12), When the long grain selection switch (43) is selected, the rice huller / sorter is shifted to a manual mode regardless of the operating position of the operation mode changeover dial (12).

2. A storage tank (16) is provided to store the grain that has passed through the hulling unit (2), and the grain is supplied from the storage tank (16) to the shaking sorting unit (6). a grain sensor for detecting the amount or volume of grain in the storage tank (16); When the circulation discharge switching valve (7) is in circulation mode, if the grain sensor detects that the grain amount or volume exceeds a predetermined amount, the valve switches from circulation to discharge in the automatic mode, and maintains circulation in the manual mode and semi-automatic mode. A rice huller and sorter as described in claim 1, characterized in that when the circulation discharge switching valve (7) is in the discharge position and the grain sensor detects that the amount or volume of grain is below a predetermined amount, it switches from discharge to circulation in automatic mode and semi-automatic mode, and maintains discharge in manual mode.

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