JP7739725B2 - Rice grain whiteness adjustment device for rice milling equipment - Google Patents

Description

The present invention relates to a rice grain whiteness adjustment device for rice milling equipment that applies resistance to rice grains discharged from a rice mill to adjust the whiteness of the rice to the desired level.

Traditionally, rice milling equipment measures the whiteness of milled rice grains to inspect whether quality is being maintained. If the measured whiteness value differs from the target set value, the equipment's rice milling operation is adjusted. This adjustment of the rice milling operation is sometimes performed by a rice milling adjustment mechanism installed in the rice grain discharge passage of the rice milling machine. For example, the rice milling adjustment mechanism disclosed in Patent Document 1 includes a resistance cover that can rotate around a rotation axis that extends horizontally and intersects with the discharge passage. The resistance cover changes its position blocking the discharge passage as it rotates around the rotation axis. A detachable weight is attached to the back side of the resistance cover, applying force to rotate the resistance cover around the rotation axis to block the discharge passage. By changing the weight of the weight, the operator can change the resistance force applied to the rice grains passing through the discharge passage and adjust the milling state of the rice grains in the milling chamber.

However, adjusting the rice polishing condition as described above is often done based on the experience and intuition of the worker, which results in poor work efficiency. To avoid this, it is conceivable to adjust the rice polishing condition of the rice grains by automatically changing the position of the resistance cover of the rice polishing adjustment mechanism based on the measured whiteness value, instead of adjusting the rice polishing condition based on the experience and intuition of the worker.

Patent No. 5930395

However, when using a rice milling machine already equipped with a rice milling adjustment mechanism, such as that described in Patent Document 1, to automatically control the resistance lid's position, it becomes necessary not only to improve the rice milling adjustment mechanism to a structure suitable for automation, but also to change the control specifications of the main control panel that controls the rice milling operation of the rice milling machine. This means that the equipment improvements become extensive, which increases the time required to improve the equipment and the costs involved in the improvements.

The present invention was developed in light of these issues, and its purpose is to make it possible to easily and quickly install a rice grain whiteness adjustment device that can automatically adjust rice polishing based on measured whiteness values into existing rice polishing machines.

To achieve the above objective, the present invention is characterized by providing a post-installation control means configured separately from the main control panel that controls the rice milling operation of the rice milling machine, and by controlling the rice milling adjustment means using the post-installation control means based on the measurement value from the whiteness measurement means.

Specifically, the following measures were taken for rice grain whiteness adjustment devices for rice milling equipment equipped with at least one rice milling machine having a main control panel that controls the rice milling operation and a discharge passageway that discharges milled rice grains from the milling chamber.

That is, the first invention comprises a rice milling adjustment means that adjusts the polishing state of the rice grains in the polishing chamber by changing the position of a resistance lid that blocks the discharge passage, thereby changing the resistance force applied to the rice grains passing through the discharge passage; a whiteness measurement means that measures the whiteness value of the rice grains; and a retrofit control means that is connected to the rice milling adjustment means and the whiteness measurement means and configured separately from the main control panel.The retrofit control means compares the measured whiteness value obtained by the whiteness measurement means, or the whiteness increase value calculated based on the measured whiteness value, with a preset target setting value, and when it determines that the rice grains are not in the target polishing state, it controls the rice milling adjustment means to change the position of the resistance lid and change the resistance force applied to the rice grains.

In a second aspect of the present invention, the retrofit control means according to the first aspect of the present invention comprises a case having a display monitor on its surface, and a substrate disposed inside the case and connected to the rice milling adjustment means and the whiteness measurement means, the substrate comprising an input operation unit that displays target setting values on the display monitor so that the target setting values can be input, and a data display unit that displays the measured whiteness value or the whiteness increase value.

In a third invention, in the first or second invention, the rice milling equipment has a plurality of rice milling machines, and is configured so that rice is milled in each of the rice milling machines in turn; the rice milling adjustment means and the whiteness measurement means are respectively provided in each of the rice milling machines; the retrofit control means is configured to be able to store in advance the control priority of each rice milling adjustment means in a control priority table; and when it is determined that the rice grains are not in the target polished state, it controls the rice milling adjustment means in order of highest priority based on the control priority table.

In a fourth aspect of the present invention, in the third aspect, the add-on control means comprises a parent control panel that controls one of the rice milling adjustment means, and at least one child control panel that controls the rice milling adjustment means other than the rice milling adjustment means controlled by the parent control panel, and the child control panel is connected to the parent control panel via a communication means. The parent control panel stores the control priority table, and is configured to control the parent control panel and child control panel corresponding to the rice milling adjustment means with the highest priority based on the control priority table when it determines that the rice grains are not in the target rice milling state.

In the first invention, the rice milling adjustment means that adjusts the milled state of rice grains in the discharge passage is controlled by a retrofit control means that is installed separately from the rice milling machine's main control panel. This eliminates the need to change the control specifications of the rice milling machine's main control panel when introducing a rice grain whiteness adjustment device, and the only improvement required for the existing rice milling machine is to modify the rice milling adjustment means so that its structure is suitable for automation. This allows for equipment improvements to be kept small, shortening the time spent on equipment improvements and keeping the costs of the improvements low.

In the second invention, the display monitor, which allows input of the target whiteness setting value and displays the measured whiteness value, is integrally provided on the surface of the case that houses the substrate that controls the rice milling adjustment means. This eliminates the need for a separate display monitor, allowing the entire rice grain whiteness adjustment device to have a compact structure.

In the third invention, when multiple rice polishers perform rice polishing operations in sequence to polish rice grains and each rice polisher is equipped with a rice polishing adjustment means, rather than controlling all of the rice polishing adjustment means simultaneously, the rice polishing adjustment means that can effectively bring the whiteness of the rice grains closer to the target set value can be selected and controlled in sequence, thereby eliminating unnecessary device operations and allowing for efficient rice polishing adjustment.

In the fourth invention, the parent and child units are set on a control panel installed in each rice polishing machine, and a rice polishing adjustment means is installed in each rice polishing machine, so the rice grain whiteness adjustment device installed in each rice polishing machine can be configured to be approximately the same. Therefore, there is no difference in the installation work for each rice polishing machine, making it easy to improve rice polishing equipment.

1 is a front view of rice milling equipment equipped with a rice grain whiteness adjusting device according to an embodiment of the present invention. 1 is a block diagram showing the relationship between a control unit, a whiteness measuring device, a rice milling adjustment mechanism, and a display monitor in rice milling equipment according to an embodiment of the present invention. FIG. 1 is a perspective view of a rice grain whiteness adjusting device according to an embodiment of the present invention. FIG. 1 is a schematic side view of a rice grain whiteness adjusting device according to an embodiment of the present invention. FIG. 10 is a diagram showing the control priorities of the first rice milling machine, the second rice milling machine, and the third rice milling machine of the control unit.

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Note that the following description of the preferred embodiment is merely exemplary in nature.

Figure 1 shows a rice milling system 10 equipped with a rice grain whiteness adjusting device 1 according to an embodiment of the present invention. The rice milling system 10 is a so-called multi-seat rice mill, in which a first rice miller 2, a second rice miller 3, and a third rice miller 4 are arranged horizontally in a straight line, starting from the upstream side of the system.

The first rice polisher 2 is a vertical grinding-type rice polisher and includes a first rice polishing processing section 2a that grinds the surface of the raw brown rice in the polishing chamber S1, a first supply section 2b that is located at the upper end of the first rice polishing processing section 2a and supplies the raw brown rice to the inside of the first rice polishing processing section 2a, and a first discharge chute section 2c that is located downstream of the first rice polishing processing section 2a and has a first discharge passage R1 that discharges the rice grains that have been ground in the first rice polishing processing section 2a.

The second rice polisher 3 is a vertical friction-type rice polisher and includes a second rice polishing section 3a that performs friction processing on the surfaces of rice grains ground by the first rice polisher 2 in the polishing chamber S2; a second supply section 3b that is located upstream of the second rice polishing section 3a and at a position corresponding to the downstream end of the first discharge passage R1 and supplies the rice grains ground by the first rice polisher 2 into the second rice polishing section 3a; and a second discharge chute section 3c that is located downstream of the second rice polishing section 3a and is provided with a second discharge passage R2 that discharges the rice grains that have been friction-processed by the second rice polishing section 3a.

The third rice polisher 4 is a vertical friction-type rice polisher and includes a third rice polishing section 4a that polishes the surfaces of the rice grains that have been friction-treated in the second rice polisher 3 in the polishing chamber S3; a third supply section 4b that is located on the upstream side of the third rice polishing section 4a and at a position corresponding to the downstream end of the second discharge passage R2 and supplies the rice grains that have been friction-treated in the second rice polisher 3 into the third rice polishing section 4a; and a third discharge chute section 4c that is located on the downstream side of the third rice polishing section 4a and is provided with a third discharge passage R3 that discharges the rice grains that have been polished in the third rice polishing section 4a.

A main control panel 5 connected to the first rice polisher 2, second rice polisher 3, and third rice polisher 4 is located downstream of the third rice polisher 4, and the main control panel 5 controls the rice polishing operations of the first rice polisher 2, second rice polisher 3, and third rice polisher 4.

The rice grain whiteness adjustment device 1 is composed of a first whiteness adjustment unit 6 attached to the first rice polisher 2, a second whiteness adjustment unit 7 attached to the second rice polisher 3, a third whiteness adjustment unit 8 attached to the third rice polisher 4, and a brown rice whiteness measuring device 9 attached to the first supply section 2b and capable of measuring the whiteness value of raw brown rice.

As shown in Figure 2, the first whiteness adjustment unit 6 comprises a first rice milling adjustment mechanism 11A (rice milling adjustment means) attached to the first discharge chute section 2c, a first whiteness meter 12A (whiteness measurement means) capable of measuring the whiteness value of rice grains, and a first sub-control panel 20A connected to the first rice milling adjustment mechanism 11A and the first whiteness meter 12A; the first sub-control panel 20A is configured separately from the main control panel 5.

The first whiteness measuring device 12A operates using a commonly known measuring mechanism, such as that disclosed in Japanese Patent Publication No. 7-71637.

As shown in Figure 3, the first rice milling adjustment mechanism 11A has a support frame 13 that is gate-shaped when viewed from the front, and the lower portion of the support frame 13 is fixed to the upper part of the first discharge chute section 2c.

As shown in Figures 3 and 4, a support shaft 14 is rotatably attached to the upper part of the support frame 13. The support shaft 14 extends horizontally, intersecting the first discharge chute section 2c, and penetrates each side surface of the support frame 13.

An air cylinder 15 with a rod portion 15a that extends and retracts upward is arranged on one outer side of the support frame 13, and the tip of the rod portion 15a is connected to one end of the support shaft 14 via a connecting rod 16.

An air control case 17 connected to an air compressor 21 via an air regulator 19 is provided on the first rice milling process section 2a side of the air cylinder 15.

The air control case 17 houses an electropneumatic regulator 17a that supplies compressed air to the air cylinder 15 and a solenoid valve 17b that discharges compressed air from the air cylinder 15. The electropneumatic regulator 17a controls the extension and retraction of the rod portion 15a of the air cylinder 15.

A plate-shaped resistance cover 18 extending in a direction intersecting the first discharge passage R1 is fixed to the support shaft 14 on the upstream side of the first discharge passage R1.

The resistance cover 18 rotates up and down when the support shaft 14 rotates via the connecting rod 16 due to the extension and contraction of the rod portion 15a of the air cylinder 15. When it rotates upward, it opens the first discharge passage R1, and when it rotates downward, it closes the first discharge passage R1.

The first whiteness measuring device 12A is located in the center of the back surface of the resistance cover 18 and is designed to measure the whiteness value of rice grains passing through the first discharge passage R1.

The first sub-control panel 20A is disposed adjacent to or opposite the support frame 13 of the air cylinder 15, and comprises a thick, approximately rectangular plate-shaped case 20a, a touch-panel display monitor 20b provided on the surface of the case 20a, and a substrate 20c disposed inside the case 20a. As shown in Figure 2, the substrate 20c comprises a data display 20d that displays various setting values and the measured whiteness value of the first whiteness meter 12A.

The base plate 20c controls the electropneumatic regulator 17a to change the position of the resistance cover 18 blocking the first discharge passage R1. By changing the position of the resistance cover 18 blocking the first discharge passage R1, the first rice milling adjustment mechanism 11A changes the resistance force applied to the rice grains passing through the first discharge passage R1, thereby adjusting the milling state of the rice grains in the milling chamber S1.

The second whiteness adjustment unit 7 comprises a second rice milling adjustment mechanism 11B (rice milling adjustment means) attached to the second discharge chute section 3c, a second whiteness meter 12B (whiteness measurement means) capable of measuring the whiteness value of rice grains, and a second sub-control panel 20B connected to the second rice milling adjustment mechanism 11B and the second whiteness meter 12B; the second sub-control panel 20B is configured separately from the main control panel 5.

The second rice milling adjustment mechanism 11B, second whiteness measuring device 12B, and second sub-control panel 20B have the same configuration as the first rice milling adjustment mechanism 11A, first whiteness measuring device 12A, and first sub-control panel 20A, respectively, so detailed explanations will be omitted.

The third whiteness adjustment unit 8 includes a third rice milling adjustment mechanism 11C (rice milling adjustment means) attached to the third discharge chute section 4c, a third whiteness meter 12C (whiteness measurement means) capable of measuring the whiteness value of rice grains, and a main control panel 20C connected to the third rice milling adjustment mechanism 11C and the third whiteness meter 12C.

The parent control panel 20C is configured separately from the main control panel 5, and the first child control panel 20A, the second child control panel 20B, and the parent control panel 20C constitute the retrofit control means 40 of the present invention.

The third rice milling adjustment mechanism 11C has the same configuration as the first rice milling adjustment mechanism 11A and the second rice milling adjustment mechanism 11B, and the third whiteness measuring device 12C has the same configuration as the first whiteness measuring device 12A and the second whiteness measuring device 12B, so detailed explanations will be omitted.

Like the first and second sub-control panels 20A and 20B, the main control panel 20C includes a case 20a, a display monitor 20b, and a circuit board 20c, and the circuit board 20c includes a data display 20d.

The board section 20c of the parent control panel 20C is connected to the board section 20c of the first child control panel 20A and the board section 20c of the second child control panel 20B via wireless communication means 30 such as Wi-Fi or Bluetooth so that they can communicate with each other.

The board unit 20c also includes an input operation unit 20e, a calculation unit 20f, a memory unit 20g, and a judgment unit 20h.

The input operation unit 20e displays various settings on the display monitor 20b so that they can be input. For example, the target whiteness value of rice grains and the target whiteness increase value during the rice milling process can be input.

The whiteness increase value is, for example, the value obtained by subtracting the whiteness value of raw brown rice from the whiteness value of rice grains processed by the third rice polisher 4, or the value obtained by subtracting the whiteness value of rice grains processed by the second rice polisher 3 from the whiteness value of rice grains processed by the third rice polisher 4, and refers to the amount of change in the whiteness value of rice grains when they pass through at least one rice polisher.

The calculation unit 20f is configured to calculate the whiteness increase value based on the measured whiteness values obtained by the first whiteness measuring device 12A, the second whiteness measuring device 12B, the third whiteness measuring device 12C, and the brown rice whiteness measuring device 9.

The memory unit 20g is configured to store the target whiteness value and target whiteness increase value input in advance via the input operation unit 20e.

In addition, as shown in FIG. 5, the memory unit 20g stores the priority order for controlling the first rice milling adjustment mechanism 11A, the second rice milling adjustment mechanism 11B, and the third rice milling adjustment mechanism 11C in a control priority table T1. For example, in this embodiment, the second rice milling adjustment mechanism 11B is set to the highest priority order, and the first rice milling adjustment mechanism 11A is set to the lowest priority order.

The judgment unit 20h compares the measured whiteness value obtained by the third whiteness measuring device 12C or the whiteness increase value obtained by calculation in the calculation unit 20f with a target set value stored in advance in the memory unit 20g to determine whether the rice grains are in the target polished state.

When the judgment unit 20h determines that the rice is not in the target polished state, i.e., not at the preset whiteness value or whiteness increase value, the base unit 20c of the main control panel 20C controls at least one of the first rice polishing adjustment mechanism 11A, second rice polishing adjustment mechanism 11B, and third rice polishing adjustment mechanism 11C to change the position of the resistance cover 18 and change the resistance force applied to the rice grains.

Specifically, when the judgment unit 20h determines that the rice grains are not in the target polished state, the base unit 20c of the parent control panel 20C controls the second child control panel 20B corresponding to the second rice-milling adjustment mechanism 11B, which has the highest priority based on the control priority table T1. In other words, when the judgment unit 20h determines that the rice grains are not in the target polished state, the base unit 20c of the parent control panel 20C controls the second rice-milling adjustment mechanism 11B, which has the highest priority based on the control priority table T1, and if the target polished state is not achieved even after controlling the second rice-milling adjustment mechanism 11B, it controls the third rice-milling adjustment mechanism 11C, which has the next highest priority, to bring the rice closer to the target polished state.

As described above, according to an embodiment of the present invention, the first rice milling adjustment mechanism 11A, second rice milling adjustment mechanism 11B, and third rice milling adjustment mechanism 11C, which adjust the milling state of rice grains in the first discharge passage R1, second discharge passage R2, and third discharge passage R3, respectively, are controlled by an add-on control means 40 that is retrofitted separately from the main control panel 5 that controls the rice milling operation of the rice milling equipment 10. This eliminates the need to change the control specifications of the main control panel 5 that controls the rice milling operation of the rice milling equipment 10 when the rice grain whiteness adjustment device 1 is introduced, and the only improvement required for the existing rice milling equipment 10 is to modify the first rice milling adjustment mechanism 11A, second rice milling adjustment mechanism 11B, and third rice milling adjustment mechanism 11C to have structures suitable for automation. Therefore, improvements to the rice milling equipment 10 can be kept small, shortening the time spent on improving the rice milling equipment 10 and keeping the costs of the improvement low.

In addition, in each of the first whiteness adjustment unit 6, second whiteness adjustment unit 7, and third whiteness adjustment unit 8, the display monitors 20b, which allow input of the target whiteness setting value and display of the measured whiteness value, are integrally provided on the surface of the case 20a, which houses the substrate 20c that controls the first rice milling adjustment mechanism 11A, second rice milling adjustment mechanism 11B, and third rice milling adjustment mechanism 11C, respectively. This eliminates the need to provide separate display monitors 20b, allowing the entire rice grain whiteness adjustment device 1 to have a compact structure.

Furthermore, in the case of equipment in which rice grains are polished by sequentially performing polishing operations using multiple first rice polishers 2, second rice polishers 3, and third rice polishers 4, as in the embodiment of the present invention, rather than simultaneously controlling all of the first rice polishing adjustment mechanism 11A, second rice polishing adjustment mechanism 11B, and third rice polishing adjustment mechanism 11C, control is performed in order starting with the second rice polishing adjustment mechanism 11B, which can effectively bring the whiteness of the rice grains closer to the target set value. This eliminates unnecessary operations of the rice grain whiteness adjustment device 1, allowing for efficient rice polishing adjustment.

Furthermore, since the first sub-control panel 20A, the second sub-control panel 20B, and the main control panel 20C are provided in the first rice polisher 2, the second rice polisher 3, and the third rice polisher 4, respectively, and the first rice polishing adjustment mechanism 11A, the second rice polishing adjustment mechanism 11B, and the third rice polishing adjustment mechanism 11C are provided in the first rice polisher 2, the second rice polisher 3, and the third rice polisher 4, respectively, the configuration of the rice grain whiteness adjustment device 1 installed in the first rice polisher 2, the second rice polisher 3, and the third rice polisher 4 can be made approximately the same. Therefore, there is no difference in the installation work for the first rice polisher 2, the second rice polisher 3, and the third rice polisher 4, making it easy to improve the rice polishing equipment 10.

In this embodiment of the present invention, the rice grain whiteness adjusting device 1 is applied to a multi-seat rice polisher, but it can also be applied to a rice polishing facility 10 consisting of a single rice polisher.

Furthermore, in this embodiment of the present invention, when adjusting whiteness, the master control panel 20C outputs a whiteness adjustment signal to the first slave control panel 20A and the second slave control panel 20B, and the first slave control panel 20A and the second slave control panel 20B control the first rice milling adjustment mechanism 11A and the second rice milling adjustment mechanism 11B based on this signal. However, the master control panel 20C may also be configured to directly control the first rice milling adjustment mechanism 11A and the second rice milling adjustment mechanism 11B.

In addition, in this embodiment of the present invention, the master control panel 20C controls the first rice milling adjustment mechanism 11A, the second rice milling adjustment mechanism 11B, and the third rice milling adjustment mechanism 11C in order of priority based on the control priority table T1, but it may also be configured to simultaneously control two or more of the first rice milling adjustment mechanism 11A, the second rice milling adjustment mechanism 11B, and the third rice milling adjustment mechanism 11C.

In addition, in this embodiment of the present invention, the parent control panel 20C of the third rice polisher 4, which is located at the most downstream of the rice polishing equipment 10, controls the first child control panel 20A and the second child control panel 20B of the first rice polisher 2 and the second rice polisher 3. However, the control panel attached to the first rice polisher 2 or the second rice polisher 3 may be configured as the parent unit, and the control panels attached to the other rice polishers may be configured as child units.

Furthermore, in the embodiment of the present invention, the communication means 30 between the parent control panel 20C and the first and second child control panels 20A and 20B is a wireless communication means such as Wi-Fi or Bluetooth, but they may also communicate with each other using wired communication means.

In addition, in the embodiment of the present invention, the display monitor 20b provided on the surface of each case portion 20a of the first sub-control panel 20A, the second sub-control panel 20B, and the main control panel 20C is a touch panel type, but it does not have to be a touch panel type, and the structure may be such that various operations displayed on the display monitor 20b are performed using operation buttons attached to the case portion 20a.

The present invention is suitable for a rice grain whiteness adjustment device for rice milling equipment that applies resistance to rice grains discharged from a rice mill to adjust the whiteness of the rice to the desired level.

REFERENCE SIGNS LIST 1 Rice grain whiteness adjusting device 2 First rice milling machine 3 Second rice milling machine 4 Third rice milling machine 5 Main control panel 10 Rice milling equipment 11A First rice milling adjusting mechanism (rice milling adjusting means)
11B Second rice polishing adjustment mechanism (rice polishing adjustment means)
11C Third rice polishing adjustment mechanism (rice polishing adjustment means)
12A 1st whiteness measuring device (whiteness measuring means)
12B Second whiteness measuring device (whiteness measuring means)
12C Third whiteness measuring device (whiteness measuring means)
18 Resistor cover 20A First slave control panel 20B Second slave control panel 20C Master control panel 20a Case section 20b Display monitor 20c Board section 20d Data display section 20e Input operation section 30 Communication means 40 Retrofit control means R1 First discharge passage R2 Second discharge passage R3 Third discharge passage S1 Whitening chamber T1 Control priority table

Claims (3)

A rice grain whiteness adjusting device for a rice milling facility, comprising at least one rice milling machine having a main control panel for controlling rice milling operations and a discharge passage for discharging milled rice grains from a milling chamber,
a rice-milling adjusting means for adjusting the polishing state of the rice grains in the polishing chamber by changing the position of a resistance cover blocking the discharge passage to change the resistance force applied to the rice grains passing through the discharge passage; and
a whiteness measuring means for measuring the whiteness value of rice grains;
a retrofit control means connected to the rice milling adjustment means and the whiteness measurement means and configured separately from the main control panel;
The rice milling equipment includes, as the rice milling machines, a first rice milling machine that grinds the surface of raw brown rice, a second rice milling machine that frictionally treats the surfaces of the rice grains that have been ground by the first rice milling machine, and a third rice milling machine that polishes the surfaces of the rice grains that have been frictionally treated by the second rice milling machine,
the rice milling adjustment means and the whiteness measurement means are provided in the first rice milling machine, the second rice milling machine, and the third rice milling machine, respectively;
The retrofit control means
The control priority table is configured to store in advance the priority of the rice milling adjustment means, with the rice milling adjustment means of the second rice milling machine being set to have the highest priority,
A rice grain whiteness adjusting device for rice milling equipment, characterized in that when it is determined that the rice grain is not in the target polished state by comparing the measured whiteness value obtained by the whiteness measuring means of the third rice milling machine, or the whiteness increase value obtained by calculation based on the measured whiteness value, with a preset target set value, the rice milling adjusting device controls the rice milling adjusting means in order of priority based on the control priority table, changing the position of the resistance cover to change the resistance force applied to the rice grain . The rice grain whiteness adjusting device for rice milling equipment according to claim 1,
the retrofit control means comprises a case part having a display monitor on its surface, and a substrate part disposed inside the case part and connected to the rice polishing adjustment means and the whiteness measurement means,
The substrate unit is characterized in that it is equipped with an input operation unit that displays a target setting value on the display monitor so that the target setting value can be input, and a data display unit that displays the measured whiteness value or the whiteness increase value. The rice grain whiteness adjusting device for rice milling equipment according to claim 1 ,
The add-on control means includes a master control panel that controls one of the rice milling adjusting means, and at least one slave control panel that controls the rice milling adjusting means other than the rice milling adjusting means controlled by the master control panel,
the slave control panel is connected to the master control panel via a communication means;
The parent control panel stores the control priority table, and when it determines that the rice grains are not in a target polished state, it controls the parent control panel and the child control panel corresponding to the rice polishing adjustment means with a higher priority based on the control priority table.