JP2015071135A - Rice hulling system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rice hulling system capable of notifying an operator of hulled rice working efficiency useful for the operator.SOLUTION: The rice hulling system comprises: an unhulled rice tank; a huller for hulling the unhulled rice supplied from the unhulled rice tank; a controller; a notifying device for notifying a user of information; and a collection amount sensor for detecting an amount of generated hulled rice generated by the huller. The controller calculates hulled rice working efficiency which is an amount of hulled rice acquired per unit time on the basis of a detection signal of the collection amount sensor, and notifies the user of the hulled rice working efficiency via the notifying device.

Description

  The present invention relates to a hulling system including a hull tank and a hulling machine.

  A rice huller for the purpose of performing a rice hulling operation at a desired brown rice sorting ratio has been proposed (see Patent Document 1 below).

  That is, the conventional rice huller includes a pair of hulling rolls, a roll gap adjusting means for adjusting a distance between the pair of hulling rolls, and a rocking sorting plate for rocking and sorting rice bran and brown rice from the mixed rice. , A rice bran / brown rice detection sensor for detecting a boundary position of rice bran / brown rice in the swing sorting plate, a brown rice partition plate provided on the downstream side of the swing sorting plate, and a brown rice partition plate for moving the brown rice partition plate Control means, a control device, and a selection ratio setting means that can be manually operated are provided.

The conventional huller operates as follows.
First, the control device controls the brown rice partition plate control means so that the brown rice partition plate is positioned at the set partition position Pr set by the sorting ratio setting means, and starts automatic rice hull sorting work in that state. . And the said control apparatus positions the said brown rice partition plate in the measurement partition position Pt according to the boundary position of the rice bran and brown rice recognized based on the signal from the rice bran and brown rice detection sensor, and the said setting partition position Pr and It is determined whether the difference amount of the measurement partition position Pt is within an appropriate range. If the difference amount is within the appropriate range, the automatic hull sorting operation is continued in that state, and if it is outside the proper range, the interval between the pair of hulling rolls is adjusted according to the difference amount, The brown rice partition plate is returned to the set partition position Pr.

  The conventional rice huller is useful in that it can stably perform automatic rice hull sorting work at a sorting ratio desired by the worker, but information on the brown rice work efficiency that the worker wants to know is not considered at all. .

Japanese Patent Laid-Open No. 10-057823

  This invention is made | formed in view of such a prior art, and aims at provision of the rice hulling system which can notify the brown rice working efficiency useful for an operator.

  In order to achieve the above object, the present invention provides a hail tank, a huller for hulling a hull supplied from the hull tank, a control device, a notification device for notifying a user of information, and the huller A yield sensor that detects the amount of brown rice generated by the machine, and the control device calculates the brown rice work efficiency, which is the amount of brown rice obtained per unit time, based on the detection signal of the yield sensor, A hulling system configured to notify the efficiency via the notification device is provided.

  Preferably, the rice hulling system includes input means capable of inputting manually, and the control device performs an operation for obtaining the desired brown rice amount based on the desired brown rice amount and the brown rice work efficiency input by the input means. It may be configured to calculate a remaining time and notify the remaining work time via the notification device.

  Preferably, the rice hulling system includes input means capable of inputting manually, and the control device uses a processing amount of the rice cake input by the input means and a brown rice amount obtained based on a detection signal of the yield sensor. The brown rice rate may be calculated, and the brown rice rate may be notified via the notification device.

  Preferably, the hulling system includes a hull amount sensor that detects a hull amount in the hull tank, and the control device is configured to control a hull processing amount obtained based on a detection signal of the hull amount sensor and the yield sensor. The brown rice rate may be calculated using the brown rice amount obtained based on the detection signal, and the brown rice rate may be notified via the notification device.

A rice sorting machine that divides brown rice produced by the rice huller into good brown rice and small rice in the rice hulling system according to the various configurations, a weighing sensor that detects the amount of good brown rice sorted by the rice sorting machine, Can be provided.
In this case, the control device calculates the ratio of good brown rice using the amount of brown rice obtained based on the detection signal of the yield sensor and the amount of good brown rice obtained based on the detection signal of the weighing sensor. And it can be configured to notify the good brown rice rate via the notification device.

  In the rice hull system according to the present invention, the control device calculates the brown rice work efficiency related to the amount of brown rice obtained per unit time based on the detection signal of the yield sensor that detects the amount of brown rice generated by the hulling machine, Since it is comprised so that the said brown rice work efficiency may be notified via a notification apparatus, the operator can estimate the required remaining work time easily based on the said brown rice work efficiency.

FIG. 1 is a schematic diagram of a hulling system according to an embodiment of the present invention. FIG. 2 is a schematic diagram of a hulling machine in the hulling system. FIG. 3 is a schematic enlarged cross-sectional view of the vicinity of the upper part of the brown rice milling cylinder in the rice huller. FIG. 4 is a control block diagram of a control device in the hulling system. FIG. 5 (a) is a graph showing the period of brown rice discharging operation of the bucket of the brown rice transport mechanism in the rice huller, and shows the relationship between the passage timing of the bucket detected by the pickup sensor and time. FIG. 5B is a graph showing the detection result of the yield sensor with respect to the amount of brown rice released from the bucket, and shows the relationship between the detection signal of the yield sensor and time.

Hereinafter, preferred embodiments of a hulling system according to the present invention will be described with reference to the accompanying drawings.
In FIG. 1, the schematic diagram of the hulling system 1 which concerns on this Embodiment is shown.

  As shown in FIG. 1, the hulling system 1 includes a hull tank 10, a huller 100 that hulls the hull supplied from the hull tank 10, a control device 30 (see FIG. 4 below), a user And a notification device 90 for notifying information.

First, a schematic configuration of the hulling machine 100 will be described.
In FIG. 2, the schematic diagram of the said hulling machine 100 is shown.

  The rice huller 100 includes a rice huller 110, a sorting unit 120 that sorts brown rice from rice hulls generated by the rice huller 110, and brown rice that discharges the brown rice sorted by the sorting unit 120 to the outside of the machine. And a discharge unit 150.

  As shown in FIG. 2, in the present embodiment, the hulling portion 110 is hulled with respect to a hull hopper 111 that receives supply of raw material hull from the hull tank 10 and a hull supplied from the hull hopper 111. A pair of main hull rolls 112a and sub hull rolls 112b.

  The sorting unit 120 includes a wind sorting unit 121 that performs wind sorting on the mixed rice containing the straw and brown rice obtained by the pair of rice hull rolls 112a and 112b, and the rice cake in the mixed rice sorted by wind sorting. A mixed rice receiving pad 122 for receiving brown rice, a rice cake discharging pad 123 for receiving paddy (small rice) in the mixed rice, a mixed rice conveyor 125 for transporting the mixed rice in the mixed rice receiving pad 122, and the mixed rice conveyor 125 A mixed rice cerealing machine 130 that communicates with the conveying end and conveys mixed rice upward, a mixed rice tank 131 that receives mixed rice from the mixed rice cerealing machine 130, and mixed rice supplied from the mixed rice tank 131. A swing sorting unit 135 that performs swing sorting with respect to the rice cake, and a rice cake channel 138, a mixed rice channel 137, and a brown rice channel 136 provided below the swing sorting unit 135. .

  The brown rice discharge unit 150 is connected to a brown rice cereal cylinder 151 erected substantially vertically in a state where a lower end portion is communicated with the flow path 136 for brown rice, and an upper end part of the brown rice cereal cylinder 151. A connecting case 155; a brown rice discharge cylinder 160 connected to the brown rice cereal cylinder 151 via the connection case 155; and the sorting part extending in the vertical direction in the brown rice cereal cylinder 151 and the connection case 155, And a brown rice transfer mechanism 170 for transferring the brown rice from 120 upward.

FIG. 3 is a schematic enlarged cross-sectional view of the vicinity of the upper part of the brown rice milling cylinder 151.
The connection case 155 connects the upper end opening of the brown rice milling cylinder 151 to the upper end opening of the brown rice discharge cylinder 160.

  Specifically, as shown in FIG. 3, the connection case 155 includes a peripheral wall portion 156 extending substantially vertically in a state of surrounding the upper end opening of the brown rice cereal barrel 151 and the upper end opening of the brown rice discharge cylinder 160, and the peripheral wall A ceiling portion 157 covering the upper portion of the portion 156.

  2 and 3, the brown rice transfer mechanism 170 includes an upper horizontal shaft 171a and a lower horizontal shaft (not shown), at least one of which is a drive shaft, and the upper horizontal shaft 171a and the lower side. An upper rotating body 172a and a lower rotating body 172b such as a sprocket supported by a horizontal axis, an endless body 173 such as a chain wound around the upper rotating body 172a and the lower rotating body 172b, and the endless body, respectively. And a plurality of buckets 174 supported by 173.

  The endless body 173 pivots endlessly with the upper rotating body 172a and the lower rotating body 172b as direction change positions.

  Here, the bucket 174 supported by the endless body 173 scoops up and stores brown rice when turning from the downward movement to the upward movement around the lower rotating body 172b and around the upper rotating body 172a. Releases the brown rice that is housed when turning from upward to downward movement.

The rice hulling system 1 further includes a yield sensor 50 that detects the amount of brown rice that has been hulled by the rice huller 100.
The yield sensor 50 detects an impact value due to the colliding brown rice, and may include, for example, a strain gauge and a circuit board. The yield sensor 50 may include a piezoelectric element instead of the strain gauge.

As shown in FIG. 3, in the present embodiment, the yield sensor 50 is disposed in the brown rice discharge locus so that the brown rice discharged from the bucket 174 collides.
In the present embodiment, the yield sensor 50 is disposed in the connection case 155.

FIG. 4 shows a block diagram of the control device 30.
As shown in FIG. 4, the control device 30 stores a calculation unit 31 including control calculation means for executing calculation processing based on signals input from sensors and switches, a program, a conversion formula, control data, and the like. ROM, an EEPROM in which setting values are stored without being lost even when the power is turned off, and an EEPROM in which the setting values can be rewritten, a RAM that temporarily holds data generated during calculation by the calculation unit, etc. And a storage unit 32 including

  The control device 30 is configured to calculate the brown rice work efficiency, which is the amount of brown rice per unit time, based on the detection signal of the yield sensor 50, and to notify the brown rice work efficiency via the notification device 90. Yes.

  According to the rice hulling system 1 having such a configuration, the worker can accurately know the brown rice work efficiency, and can accurately predict the work time required to obtain a desired amount of brown rice.

  For example, as shown in FIGS. 2 and 4, the notification device 90 can also be used as a display monitor provided in the huller 100.

  Preferably, the hulling system 1 can be provided with input means 55 that can be manually operated.

  For example, the input means 55 can input a desired amount of brown rice to be obtained.

  In this case, the control device 30 calculates the remaining work time for obtaining the desired brown rice amount based on the desired brown rice amount and the brown rice work efficiency input by the input means 55, and the notification device 90 calculates the remaining work time. It can be configured to announce via.

  Further, the input means 55 can input the amount of soot in the soot tank 10 at the first timing and the amount of soot in the soot tank 10 at the second timing.

  In this case, the control device 30 uses the processing amount of koji based on the input value by the input means 55 and the amount of brown rice between the first and second timings obtained based on the detection signal of the yield sensor 50. The brown rice rate may be calculated, and the brown rice rate may be notified via the notification device 90.

  Further, the hulling system 1 can include a hull amount sensor 60 that detects a hull amount in the hull tank 10 regardless of the presence or absence of the input means 55.

  In this case, the control device 30 performs the first processing amount obtained based on the processing amount of the soot between the first and second timings obtained based on the detection signal of the soot amount sensor 60 and the detection signal of the yield sensor 50. The brown rice rate may be calculated using the amount of brown rice between the first and second timings, and the brown rice rate may be notified via the notification device 90.

  Preferably, the yield sensor 50 may be disposed at a position where the brown rice that moves discretely does not collide continuously or as a group of brown rice discharged from the bucket 174.

  According to such a configuration, the influence of disturbance on the yield sensor 50 can be suppressed and the detection accuracy of the amount of brown rice by the yield sensor 50 can be enhanced by cooperating with the following control by the control device 30.

First, a preferred arrangement of the yield sensor 50 will be described.
As shown in FIG. 3, the brown rice discharged from the bucket 17 when the bucket 17 changes its direction around the upper rotating body 172a is radially out of the center of the upper rotating body 172a by centrifugal force. And is discharged downstream in the rotational direction of the upper rotating body 172a.

  Here, in the present embodiment, as shown in FIG. 3, the ceiling portion 157 includes an inclined wall 157 a that is inclined so that an opening width is narrowed upward from the upper end of the peripheral wall portion 156, and the inclined portion. A top wall 157b extending substantially horizontally so as to close the upper end of the wall 157a.

  Most of the brown rice discharged from the bucket 174 collides with the inner surface of the top wall 157b continuously or as a group, and is discharged from the bucket 174 among the inner surface of the top wall 157b and the inclined wall 157a. It moves along the inner surface of an inclined wall 157a ′ (referred to as a discharge-side inclined wall) located downstream in the moving direction of the brown rice and reaches the upper end opening of the brown rice discharge cylinder 160.

  On the other hand, some of the brown rice accommodated in the bucket 174 moves discretely outward in the radial direction on the downstream side in the rotation direction of the upper rotating body 172a from the moving path of the brown rice moving continuously or as a group. To do.

The yield sensor 50 is arranged so that the brown rice that moves discretely does not collide with the brown rice that moves continuously or as a group.
In the present embodiment, as shown in FIG. 3, the yield sensor 50 is disposed on the discharge-side inclined wall 157a ′ in a state of being separated from the inner surface by a predetermined distance.

  The separation distance from the inner surface of the discharge side inclined wall 157a ′ is discharged from the bucket 174 and continuously or in a group along the inner surface of the top wall 157b and the inner surface of the discharge side inclined wall 157a. The brown rice that is moved in (1) is released from the bucket 174 without colliding and adjusted so that the discretely moving brown rice collides.

  In the present embodiment, the yield sensor 50 is supported on the inner surface of the discharge-side inclined wall 157 a ′ with the predetermined distance secured by the mounting spacer 51.

Next, a control structure for increasing the detection accuracy of the amount of brown rice by the yield sensor 50 will be described.
As shown in FIG. 4, the hulling system 1 according to the present embodiment includes a timing sensor 65 that detects the timing of the brown rice discharging operation by the bucket 174.

The timing sensor 65 can be, for example, a pickup sensor formed by a magnetic sensor having a Hall element or the like.
That is, a recess (not shown) is provided at a plurality of positions corresponding to each of the plurality of buckets 174 in the endless body 173, and the pickup sensor 65 faces the recess according to the movement of the endless body 173. Are arranged as follows.

In this case, the pickup sensor 65 outputs a pulse signal when the concave portion passes in front of the pickup sensor 65.
A period from when one concave portion passes in front of the pickup sensor 65 to when the next concave portion passes in front of the pickup sensor 65 corresponds to the period of the brown rice discharging operation of the one bucket 174.

  The control device 30 creates a time stamp every time a detection signal of the pickup sensor 65 is input, and stores the time stamp in the storage unit 32 in association with the detection signal of the yield sensor 50.

  FIGS. 5A and 5B show a graph representing the relationship between time and the detection signal of the pickup sensor 65, and a graph representing the relationship between time and the detection signal of the yield sensor 50, respectively.

  The control device 30 integrates the detection signals of the yield sensor 50 and stores them as the amount of generated brown rice. In FIG. 5 (b), α is a threshold for determining whether or not to include the detection signal of the yield sensor 50 as an integration target.

  In FIG. 5 (b), a period between P / 4 and 3P / 4 is a collision period in which brown rice that moves discretely among the brown rice discharged from the bucket 174 collides with the yield sensor 50.

  The control device 30 compares the detection signal input from the yield sensor 50 with the threshold value α during the collision period between P / 4 and 3P / 4, and the detection signal has a value exceeding the threshold value α. If included, the collision period detection signal (broken line hatched portion in FIG. 5B) is recognized as the amount of brown rice to be integrated.

  When the detection signal of the yield sensor 50 does not include a value exceeding the threshold value α in the collision period between P / 4 to 3P / 4, the control device 30 determines that the period corresponding to this cycle is It is determined that brown rice is not accommodated in the bucket 174, and the detection signals of this period (periods P3 and P4 in FIG. 5B) are excluded from the targets to be integrated.

  On the other hand, in FIG. 5B, between 0 to P / 4 and between 3P / 4 to P is a non-collision period in which the brown rice released from the bucket 174 does not collide with the yield sensor 50.

Ideally, the yield sensor 50 should not detect a signal during the non-collision period.
However, in practice, the yield sensor 50 detects a signal having a value smaller than the threshold value α during the non-collision period.

  The detection signal of the yield sensor 50 during this non-collision period corresponds to a steady deviation caused by the vibration of the huller 100 and the characteristics of the yield sensor 50.

  The control device 30 is configured to correct the amount of brown rice based on the detection signal of the yield sensor 50 using this steady deviation.

  That is, the control device 30 performs a necessary process on the value obtained by integrating the detection signals of the yield sensor 50 in the non-collision period, and stores the correction value X in the storage unit 32.

  Then, the control device 30 refers to the time stamp stored in the storage unit 32, integrates the detection signals of the yield sensor 50 in the collision period of P / 4 to 3P / 4, and includes it in the integrated value. Is removed using the correction value X. For example, the correction value X can be subtracted from the integrated value.

  In this way, the yield sensor 50 is arranged so that the brown rice that is discretely moved among the brown rice discharged from the bucket 174 collides with the yield sensor 50, and one period of brown rice discharge operation by the bucket 174 is performed. There is a collision period and a non-collision period.

  In addition, the control device 30 integrates the detection signals of the yield sensor 50 during the collision period including a value exceeding the threshold value α, and on the basis of the detection signals of the yield sensor 50 during the non-collision period. A correction value X corresponding to the deviation is generated, and the integrated value is corrected using the correction value X.

  Therefore, the steady deviation contained in the detection signal of the yield sensor 50 can be removed, and the amount of brown rice can be accurately detected.

The hulling system 1 according to the present embodiment further includes a rice selection machine 200 as shown in FIG.
The rice selector 200 separates the brown rice generated by the rice huller 100 into good brown rice and small rice.

  In this case, preferably, the rice hulling system 1 can be provided with a weighing sensor 70 (see FIG. 4) that detects the amount of good brown rice divided by the rice selector 200.

The control device 30 calculates the ratio of good brown rice using the amount of brown rice recognized based on the detection signal of the yield sensor 50 and the amount of good brown rice recognized based on the detection signal of the weighing sensor 70. The unpolished rice rate may be notified via the notification device 90.
According to such a configuration, it is possible to know whether the bag is working or not.

DESCRIPTION OF SYMBOLS 1 Rice hulling system 10 Rice hull tank 30 Control apparatus 50 Yield sensor 55 Input means 60 Reed quantity sensor 70 Weighing sensor 90 Notification apparatus 100

Claims (5)

A hull tank, a huller for hulling the hull supplied from the hull tank, a control device, a notification device for notifying a user of information, and a yield sensor for detecting the amount of brown rice generated by the huller And
The control device calculates the brown rice work efficiency, which is the amount of brown rice obtained per unit time, based on the detection signal of the yield sensor, and notifies the brown rice work efficiency via the notification device. Sliding system. It has an input means that can be input manually,
The control device calculates a remaining work time for obtaining the desired brown rice amount based on the desired brown rice amount and the brown rice work efficiency input by the input unit, and the remaining work time is calculated via the notification device. The hulling system according to claim 1, wherein the hulling system is notified. It has an input means that can be input manually,
The control device calculates the brown rice rate using the processing amount of rice bran inputted by the input means and the brown rice amount obtained based on the detection signal of the yield sensor, and the brown rice rate is calculated via the notification device. The hulling system according to claim 1 or 2, wherein notification is given. A soot amount sensor for detecting the soot amount in the soot tank,
The control device calculates a brown rice rate using a processing amount of rice bran obtained based on a detection signal of the rice bran amount sensor and an amount of brown rice obtained based on a detection signal of the yield sensor, and the brown rice rate is calculated as described above. The hulling system according to claim 1 or 2, wherein notification is made via a notification device. A rice sorting machine that divides brown rice produced by the rice huller into good brown rice and small rice, and a weighing sensor that detects the amount of good brown rice sorted by the rice sorting machine,
The control device calculates the ratio of good brown rice using the amount of brown rice obtained based on the detection signal of the yield sensor and the amount of good brown rice obtained based on the detection signal of the weighing sensor, The hulling system according to any one of claims 1 to 4, wherein notification is made via a notification device.

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