JPH04277035A - Driving control apparatus of vertical dry rice polishing apparatus - Google Patents

Abstract

PURPOSE:To prevent the locking of an electromotor at the start time of rice polishing by lowering the pressure applied to the rice in the lower part of a rice polishing chamber part of a rice polishing chamber from the rice in the upper part thereof by reversing the electromotor for a predetermined time at the time of starting. CONSTITUTION:An inner cylinder and an outer cylinder 60 forming a rice polishing chamber are arranged in a receiving chamber temporarily receiving polished rice in a relatively revolvable manner in an up-and-down direction to constitute a vertical rice polishing machine M. A slit group performing the grinding and germ removal of polished rice while guiding polished rice from the lower part of the rice polishing chamber to the upper part thereof at the time of the relative revolution of the inner and outer cylinders 60 is provided to the rice polishing chamber. A reversal command means 104 rotating the electromotor driving the rice polishing machine M in the direction reverse to a rice polishing direction for a predetermined time at the time of restarting and a forward rotation command means 105 forwardly rotating the electromotor after the completion of reversal are provided. As a result, the pressure applied to the rice in the lower part of the rice polishing chamber from the rice in the upper part thereof can be lowered and the locking of the electromotor at the start time of rice polishing can be prevented.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drive control device for a vertical dry rice polishing apparatus for polishing rice in a dry state without using water.

0002

2. Description of the Related Art An example of a dry rice polishing device for polishing rice in a dry state without using water is disclosed in Japanese Patent Application Laid-Open No. 2-135153. This dry rice polishing device has an inner cylinder that serves as a polishing body and an outer cylinder that serves as a rice polishing body that are loosely fitted and arranged concentrically in a case, and these inner and outer cylinders form a rice polishing chamber. , an electric motor that drives the inner cylinder is connected in series with this, and these electric motors, the inner cylinder, and the outer cylinder are arranged horizontally. One side of the rice polishing chamber is connected to a hopper for supplying polished rice placed at the top, and the other side of the rice polishing chamber is connected to a rice delivery port to receive the measured and supplied polished rice from the hopper. The rice is ground and polished while passing through the rice polishing chamber, and all of the polished rice and polished rice in the polishing chamber are collected into a rice tray disposed below the rice delivery port.

0003

[Problems to be Solved by the Invention] As mentioned above, the conventional dry rice polishing device has a horizontal structure in which the electric motor, the inner cylinder, and the outer cylinder are arranged horizontally in series. The problem was that the space it occupied had to be large in plan view.

[0004] Furthermore, since polished and polished white rice is collected in a rice tray located below the rice delivery port, for example, dry polished rice is used to perform the subsequent rice cooking process in a series of operations. When integrating the device and the rice cooker, if you use natural fall to transfer white rice from the rice tray to the rice cooker, the entire device will become vertically long. There have been various problems, such as transporting white rice to the rice cooker is troublesome and can easily cause trouble.

[0005] Therefore, the inner and outer cylinders that make up the rice polishing chamber are made vertical, so that the polished rice is ground and polished while being transferred from the lower part of the rice polishing chamber to the upper part. A vertical structure that allows polished rice to be sent out from the rice polishing room in accordance with an externally set amount, thereby reducing the space occupied by the rice polishing device in terms of space, and making it easier to transport polished rice after grinding and polishing. A mold rice polishing device has already been proposed by the applicant.

However, in such a vertical rice polishing device, when the rice polishing machine is stopped, rice remains in the rice polishing chamber, and the rice in the lower part of the rice polishing chamber is transferred to the rice in the upper part of the rice polishing chamber. It was compressed by the pressure of its own weight, which clogged the lower part of the rice polishing chamber and caused it to lock up when restarted.

SUMMARY OF THE INVENTION In view of the above points, it is an object of the present invention to provide a drive control device for a vertical dry rice polishing apparatus that can prevent the electric motor from locking at the start of rice polishing.

[0008]

[Means for Solving the Problems] A drive control device for a vertical dry rice polishing apparatus according to the present invention has an inner cylinder and an outer cylinder loosely fitted in a storage chamber for temporarily storing polished rice so as to be relatively rotatable. These inner cylinders and outer cylinders form an annular rice polishing chamber in which the gap interval changes. A grinding machine configured to provide a group of slits for grinding and grinding rice while guiding it to the upper part of the rice grinding chamber during the relative rotation, and to send out the polished rice after grinding and grinding from the upper part of the rice grinding chamber. A rice machine, an electric motor that drives either the inner cylinder or the outer cylinder of this rice polishing machine, and an electric motor installed outside the rice polishing machine, which feeds polished rice to a set amount from the upper part of the rice polishing chamber. The measuring section outputs a measurement end signal when the set amount is reached, and the electric motor is rotated in the opposite direction to the rice grinding direction for a predetermined time at startup based on the rice polishing machine operation signal from the operation section. A reverse rotation command means outputs a reverse rotation end signal after a predetermined time has elapsed, and the electric motor is controlled from the measuring section based on the rice polisher operation signal from the operating section and the reverse rotation end signal from the reverse rotation command means. A forward rotation command means for causing forward rotation until a measurement end signal is input.

[0009]

[Function] In the present invention, the rice remaining in the rice polishing chamber after finishing the rice polishing operation is removed by the reverse rotation of the rice polishing machine when the rice polishing machine is restarted. A portion of the rice is guided back to the storage chamber side by a group of slits, and the pressure from the rice in the upper part of the rice polishing chamber applied to the rice in the lower part of the rice polishing chamber is reduced. After that, when the reverse rotation of the rice polishing machine stops and the rice polishing machine starts rotating forward, the rice in the rice polishing chamber moves in irregular directions and is scraped due to the change in the size of the gap in the rice polishing chamber. While being mixed, the rice is guided to the delivery side by a group of slits that perform grinding and cutting, and the rice is pushed upward as a whole. On the way up, the bran layer and germ on the surface of the rice grains are scraped off or polished by the slits that perform grinding and germ removal, or by the contact between rice grains. The white rice pushed up to the top of the rice polishing chamber while undergoing the rice polishing action is sent out from the top of the rice polishing chamber until it reaches a set amount, and when the set amount is reached, the rice polishing machine stops.

0010

EXAMPLES The present invention will be explained below with reference to illustrated examples.

First, the principle of the vertical dry rice polishing apparatus of this embodiment will be explained with reference to FIGS. 2 to 9. Figure 2 is an explanatory diagram of the configuration of the vertical dry rice polishing device seen from the front side, and Figure 3 is its A.
-A sectional view. In FIG. 1, 1 is a substrate, 2 is an electric motor fixed to the substrate 1 and equipped with a speed reduction mechanism, and 3 is its output shaft. 4 is a driving pulley, 5 is a belt, and 6 is a driven pulley. The belt 5 is a timing belt that does not slip during torque transmission, and both pulleys 4
and 6 are also provided with tooth profiles corresponding to the teeth of the timing belt.

10 is the main body of the rice polishing device. Reference numeral 20 denotes a cylindrical outer case of the main body 10, which is divided into an upper case 21, an intermediate case 22, and a lower case 23. 2
Reference numeral 4 denotes a plurality of connecting fittings provided above and below the intermediate case 22, which connects the upper case 21 and the lower case 23 to the intermediate case 22.
Detachably connected to the top and bottom of. The outer case 20 is made of, for example, transparent resin, and the vicinity of the lower case 23 is fixed to the substrate 1. 25 is a plurality of support columns, and 26 is a mounting plate. The mounting plate 26 is mounted horizontally below the lower case 23 with a space provided therebetween by a support 25. 27 is a U-shaped holding frame, and 28 is a tray. The tray 28 is disposed within the holding frame 27 and collects rice bran and the like separated during the rice polishing operation described later. 31 is an annular lower bearing seat fixed to the lower case 23 and the mounting plate 26, 32 is two ball bearings, 33
is a drive shaft supported by both ball bearings 32. Drive shaft 33
A driven pulley 6 is attached to the.

Reference numeral 41 denotes an inclined ring fixed downwardly within the intermediate case 22, and on its upper surface, rice in a storage chamber formed between the intermediate case 22 and an outer cylinder 60, which will be described later, is tilted toward the center of the ring due to its own weight. An inclined surface 42 is provided which is set at an angle of inclination sufficient for sliding down. 43 is a flanged surface bearing, and 44 is a driven shaft. The driven shaft 44 is supported by a surface bearing 43 and connected to the drive shaft 33.

Reference numeral 51 designates an upper bearing seat provided in the upper case 21, 52 a surface bearing, 53 a dust seal, and 54 an annular shaft supported by the surface bearing 52. Further, 55 is a top plate fixed to the upper case 21, 56 is a rice input path, and 5
7 is an outlet. The upper and lower ends of the driven shaft 44 and the annular shaft 54 have a hexagonal inner surface to match the outer shape of the outer cylinder 60, and a circular outer peripheral surface to correspond to the surface bearings 43 and 52. 44 see Figure 3).

Reference numeral 60 denotes an outer cylinder, and 70 denotes a cylindrical inner cylinder disposed inside the outer cylinder 60 in the direction of its axis X--X. An annular shaft 54 and a driven shaft 44 are fitted and integrally attached to the upper and lower ends of the outer cylinder 60, and are rotatably supported within the outer case 20 by surface bearings 52 and 43. 63 is the driven shaft 4
These are intake ports provided at multiple locations in the circumferential direction in the upper part of 4.

[0016] Reference numeral 71 denotes a slit that penetrates the inside and outside of the inner cylinder 70. The slit 71 is located approximately 90 mm in the middle of the cylindrical portion of the inner cylinder 70.
Divided into four groups arranged in the axis X-X direction at intervals of degrees,
As shown in FIG. 4, the slits 71 of each group are provided at an angle θ (in the embodiment, θ is approximately 25 degrees) with respect to the diametrical direction. Further, the groove width Ws of the slit 71 is smaller than the thickness Wr of the thinner side of the rice grain and has a width Ws<Wr, so that the opening edge 73 is not chamfered but has a pointed angle so that the rice grain does not pass through the slit 71. (Figure 8
, see Figure 9). Among the many slits 71 provided in the vertical direction of the cylindrical portion of the inner cylinder 70, the slit 71 in the upper layer is provided with germ removal claws 72 as shown in an enlarged view in FIG. The tip of the germ removal claw 72 forms an arcuate blade,
This blade portion projects obliquely to the outside of the inner cylinder 70.

Reference numeral 73 denotes a mesh formed in the upper part of the inner cylinder 70. The mesh 73 has a thickness of 0.5φ and a width of 13
．． It is made by knitting about four thin metal wires such as stainless steel into a net shape, and is made into a "Yatsuhashi" shape with circular arc surfaces on strips. It is provided on the periphery. 74 is a fixing plate fixed to the upper end of the inner cylinder 70, and 75 is a fixing screw. The fixing plate 74 is fixed to the top plate 55 by fixing screws 75, and functions to restrict free rotation of the inner cylinder 70 (see FIG. 6).

76 is a spiral. spiral 76
is formed in the middle of the inner cylinder 70 to face the intake port 63, and is for guiding the rice that has slid down on the inclined surface 42 of the inclined ring 41 and taken in from the intake port 63 toward the delivery port 57 side. . The inner cylinder 70 in which the slits 71, the mesh 73, etc. are formed is set to be longer than the outer cylinder 60 on the outside, and is suspended from the top plate 55, with the driven shaft 44 and the drive shaft 3 in the middle.
The lower end is exposed inside the holding frame 27 through the hollow part 3.

12 is polished rice before being polished, 13 is polished rice that has been polished using a rice polishing device, and 15 is rice bran that contains germ powder, dust, etc. mixed in the polished rice, and is mainly composed of bran. It is separated from polished rice 12 by rice grinding. 16 is the germinal pore.

[0020]The annular space formed between the outer case 20 and the outer cylinder 60 has a storage chamber R1 for temporarily storing polished rice to be polished, and a hexagonal outer cylinder 60 and a circular inner cylinder 70. The annular gap between them constitutes a rice polishing chamber R2, and the internal space of the inner cylinder 70 constitutes a recovery duct R3 for recovering the bran 15 separated from the polished rice 12. Based on the experimental results, the maximum value Lm and minimum value Ln of the gap in the direction orthogonal to the axis X-X of the rice polishing room R2 are Lm≦2Lr and Lr, respectively, where Lr is the length of an ordinary rice grain. It is selected such that it falls within the range of ≧Ln (FIGS. 7 and 8).

The rice polishing operation of the vertical dry rice polishing apparatus having such a configuration will be explained with reference to FIGS. 2 to 9.

First, the polished rice 12 is charged into the storage chamber R1 from the input path 56 of the upper case 21, and the polished rice 12
It is accumulated and stored from 2. A part of the polished rice 12 put into the storage chamber R1 slides down on the slope 42 and enters the vicinity of the bottom of the rice polishing chamber R2 through the intake port 63.

Here, when the electric motor 2 is driven at a constant speed, the rotational force is applied to the output shaft 3, drive pulley 4, and belt 5.
The signal is transmitted to the driven pulley 6 on the main body 10 side via. The rotational force transmitted to the driven pulley 6 is further transmitted to the drive shaft 33 and the driven shaft 44, and the outer cylinder 60, which is supported at the bottom and top by surface bearings 43 and 52, rotates in the direction of the arrow in FIG. 7 (hereinafter, forward rotation). direction). When the outer cylinder 60 rotates in the forward rotation direction, the polished rice 12 that has slid down on the inclined surface 42 of the inclined ring 41 receives pressure from the polished rice 12 above and flows through the three intake ports 63 into the rice polishing chamber R2. Forced inside. The pushed-in milled rice 12 receives the pushing force of the milled rice 12 that is pushed in next, and is pushed up into the rice polishing chamber R2 together with the milled rice 12 that has already entered. At the same time, intake port 6
The rice grains that were pushed in from 3 and came into contact with the spiral 76,
The forward rotating outer cylinder 60 applies a force F having horizontal and vertical components Fk and Fv as shown in FIG. The force F inclined at the helical angle α cooperates with the pushing force due to the pressure from the inclined surface 42 and the milled rice 12 above it, and the milled rice 12
is pushed up into the rice polishing room R2. The individual rice grains pushed up are separated by a gap interval Lm-Ln due to the difference in cross-sectional shape between the hexagonal outer cylinder 60 that rotates in the normal direction and the fixed circular inner cylinder 70.
= δ, the polished rice 12 as an aggregate rises in the rice polishing room R2 while being moved and stirred in irregular directions.

In this case, the rice grains rising while contacting the inner cylinder 70 partially fit into the slit 71 as shown in FIG. scraped off. In addition, the bran layer is peeled off by the kneading motion of the rice grains due to the weight from the upper layer in the rice polishing room R2 and the pushing up from the lower layer. In addition, the rice grains that have been raised near the germ removal slits 71 so that the germ removal claws 72 face the germ removal claws 72 are scraped off from the germs remaining in the germination holes 16 and the accumulated germ powder. Furthermore, the rice grains that have reached the upper part of the rice polishing chamber R2 are rubbed and polished by the mesh 73 having an arcuate surface. Furthermore, the surface of each rice grain is polished by the friction between the rice grains. Then, remove the shaved bran powder, germ powder, and any small debris that is mixed into the bran by 1 part.
5, the rice passes through the gap between the slit 71 and the mesh 73 toward the collection duct R3, is separated from the polished rice 12, falls down the collection duct R3, and is collected into the tray 28. In this way, while undergoing grinding and polishing in a dry state, the rice polishing room R
The polished rice 13 is pushed up to the top of the rice bowl 2 and sent out from the delivery port 57, and is sent out from the delivery port 57 while being measured by an external measuring section (not shown) until a set amount is reached. When the set amount is reached, the electric motor 2 is stopped, and the delivered polished rice is then transferred to a rice cooking process, where it is put into a rice cooker and heated with an appropriate amount of water to be cooked.

By the way, in the above-mentioned vertical dry rice polishing apparatus, when the electric motor 2 is stopped, rice remains in the rice polishing chamber R2. These remaining rice may be compressed by the rice in the lower part of the rice polishing chamber due to its own weight from the rice in the upper part of the rice polishing chamber, which may clog the lower part of the rice polishing chamber and cause the rice to lock when restarting. To prevent this, it is necessary to reduce the pressure from the rice in the upper part of the rice processing room that is applied to the rice in the lower part of the rice processing room.

FIG. 1 shows a vertical dry type rice polishing machine according to the present invention, in which the pressure from the rice in the upper part of the rice polishing chamber applied to the rice in the lower part of the rice polishing chamber is reduced by rotating the electric motor 2 in reverse for a predetermined time at startup. 1 shows a schematic configuration diagram of a drive control device of the device.

To explain this in more detail based on FIG. 1, 10
Reference numeral 1 denotes an operation unit, which includes at least a rice-grinding key 101a that allows only rice to be polished, and a fully automatic key 101b that allows other processes such as rice cooking to be performed continuously after rice is automatically polished. be.

Reference numeral 102 represents a signal determination unit, and the rice polishing key 10
1a or fully automatic key 101b is selected,
When the rice polishing key 101a is selected, a signal (hereinafter referred to as
(referred to as the rice polishing selection signal), and also outputs the fully automatic key 101.
When b is selected, a signal (hereinafter referred to as a fully automatic selection signal) is output to the switching section and forward rotation command means, which will be described later, to inform that the fully automatic key 101b has been selected.

Reference numeral 103 denotes a switching unit which, when a rice polishing selection signal is input, outputs a signal (hereinafter referred to as a rice polishing machine operation signal) for operating the outer cylinder 60 of the rice polishing machine M to the reverse rotation command means;
When a reverse rotation end signal, which will be described later, is input from the reverse rotation command means, a rice polisher operation signal is output to the forward rotation command means.

Reference numeral 104 denotes a reverse rotation command means, which rotates the outer cylinder 60 of the rice polisher M for a predetermined time (
In this embodiment, a reverse rotation control signal is output to the electric motor 2 to cause the rice in the rice polishing chamber R2 to return slightly to the storage chamber R1 side by rotating the rice in the reverse direction for 1 second, and the reverse rotation control signal is stopped. Then, a reverse rotation end signal is output to the switching section 103.

Reference numeral 105 denotes a forward rotation command means, which causes the electric motor 2 of the rice polishing machine M to rotate in the forward direction to polish the rice when the rice polishing machine operation signal is input after the rice polishing selection signal is input from the signal determination unit 102. A forward rotation control signal is output, and when a measurement end signal indicating that the set amount has been reached is input from the measuring section 106, the output of the forward rotation control signal is stopped, and it is determined that the rice has been polished, and the signal is set. When the rice polishing machine operation signal is input after the fully automatic selection signal is input from the determination section, the forward rotation control signal is output until the measurement end signal is input in the same way as above, and when the measurement end signal is input, the other processing section 107, which outputs a rice-grinding end signal to the rice cooker to cook the rice.

Reference numeral 108 denotes a driver that drives the electric motor 2 of the rice polishing machine M in the corresponding rotational direction to operate the outer cylinder 60 when a rice polishing machine operation signal is input from the reverse rotation command means 104 or the forward rotation command means 105. be.

Next, the operation of the drive control device for the vertical dry rice polishing apparatus having the above-described configuration will be explained based on FIG. 1 and with reference to FIG. 2. In this case, it is assumed that the rice polishing operations described in FIGS. 2 to 9 have been completed, and rice remains in the rice polishing chamber R2.

First, the user presses the rice polishing key 1 on the operation unit 101.
01a or the fully automatic key 101b is selected and pressed, the signal determination unit 102 selects the rice polishing key 101a or the fully automatic key 1.
01b is selected and press the Kenmai key 10.
If it is determined that 1a has been selected, the switching unit 103 and forward rotation command means 105 are notified that the rice polishing key 101a has been selected. When the switching unit 103 receives a rice polishing selection signal from the signal determining unit 102 indicating that the rice polishing key 101a has been selected, it outputs a rice polishing machine activation signal to the reverse rotation command means 104. When the reverse rotation command means 104 receives a rice polishing machine operation signal input from the switching unit 103, the reverse rotation command means 104 controls the driver 10.
8, a reverse rotation control signal is output for 1 second. The driver 108 drives the electric motor 2 in the direction of rotation opposite to that during rice polishing based on the control signal from the reverse rotation command means 104, and rotates the outer cylinder 60 of the rice polishing machine M in the direction of rotation opposite to that during rice polishing for one second. let As a result, the rice in the rice polishing chamber R2 is slightly returned to the storage chamber R1 side, and the pressure from the rice in the upper part of the rice polishing chamber that is applied to the rice in the lower part of the rice polishing chamber is reduced. Then, when the reverse rotation control signal stops,
The reverse rotation command means 104 outputs a reverse rotation end signal to the switching unit 103 to notify that the reverse rotation has ended.

Next, the switching section 103 switches the reverse rotation command means 10
When a reverse rotation end signal is input from 4, the forward rotation command means 1
Outputs rice polishing machine operation signal to 05. When the rice polishing machine operation signal is input from the switching section 103 after the rice polishing selection signal is input from the signal determining section 102, the forward rotation command means 105 sends a forward rotation control signal to the driver 108 and a metering end signal from the measuring section 106. Outputs until input. driver 10
8 drives the electric motor 2 in the forward rotation direction, which is the rice polishing direction, based on the control signal from the forward rotation command means 105, and rotates the outer cylinder 60 of the rice polishing machine M in the forward rotation direction. As a result, Figure 2
The rice polishing operation explained with reference to FIG. 9 is started, and the polished rice 13 is continuously sent out from the delivery port 57. When the polished rice 13 is delivered from the delivery port 57, the measuring unit 106 cumulatively measures the delivered polished rice 13 until it reaches a set amount,
When the set amount is reached, the forward rotation command means 105 is notified that the metering has ended. When the forward rotation command means 105 receives the measurement end signal input from the measuring section 106, it stops outputting the forward rotation control signal and determines that the rice polishing is completed.

Further, the forward rotation command means 105 operates the switching unit 10 after receiving the fully automatic selection signal from the signal determining unit 102.
When the rice polishing machine operation signal is input from 3, a forward rotation control signal is output to the driver 108 until the measurement end signal is input from the measuring section 106, as described above, and the electric motor 2 is rotated in the forward direction, which is the rice polishing direction. direction, and when the metering end signal is input, the output of the forward rotation control signal is stopped, and the other processing section 107
That is, a rice-grinding end signal is output to the rice cooker to shift control to the rice cooking process.

[0037]

[Effects of the Invention] As described above, according to the present invention, since the electric motor is rotated in reverse for a predetermined period of time at startup,
It is possible to reduce the pressure from the rice in the upper part of the rice-polishing chamber that is applied to the rice in the lower part of the rice-polishing chamber, and this has the effect of preventing the electric motor from locking up at the start of rice-polishing.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram of an embodiment of the present invention.

FIG. 2 is an explanatory diagram of the configuration of a vertical dry rice polishing apparatus to which the present invention is applied.

FIG. 3 is a sectional view taken along line AA in FIG. 2;

FIG. 4 is a vertical cross-sectional view of the vicinity of the rice polishing room.

FIG. 5 is an enlarged view of a slit for embryo removal.

FIG. 6 is a top view of the inner cylinder.

FIG. 7 is an explanatory diagram of rice polishing operation.

FIG. 8 is an explanatory diagram of the conveyance state of rice grains.

FIG. 9 is an explanatory diagram of a slit polishing operation.

[Explanation of symbols]

2　Electric motor 12 Rice polishing 13. White rice 57 Outlet 60 Outer cylinder 63 Intake port 70 Inner cylinder 71 Slit 72 Germ removal nails 101 Operation section 104 Reverse rotation command means 105 Forward rotation command means 106 Measuring part M rice polishing machine R1 Storage room R2 Rice research room

Claims (1)

[Claims] [Claim 1] An inner tube and an outer tube are loosely fitted in a storage chamber for temporarily storing polished rice, and arranged vertically so as to be relatively rotatable, and the gap between the inner tube and the outer tube changes. A ring-shaped rice grinding chamber is formed, and in this rice grinding chamber, the polished rice introduced into the lower part of the rice grinding chamber from the storage chamber is guided to the upper part of the rice grinding chamber during the relative rotation, and the polished rice is ground and ground. A rice polishing machine is provided with a group of slits for carrying out grinding, and is configured to send polished rice after grinding and germination from the upper part of the rice polishing chamber, and drives either an inner cylinder or an outer cylinder of this rice polishing machine. a measuring unit installed outside the rice polishing machine that measures the polished rice sent out from the top of the rice polishing chamber until it reaches a set amount, and outputs a measurement end signal when the set amount is reached; a reverse rotation command means for rotating the electric motor in a direction opposite to the rice polishing direction for a predetermined period of time upon startup based on a rice polishing machine operation signal from the section, and outputting a reverse rotation end signal after the elapse of the predetermined period; and the operation section. and forward rotation command means for rotating the electric motor in the forward direction until a measurement end signal is input from the measuring section, based on a rice polishing machine operation signal from the rice polisher and a reverse rotation end signal from the reverse rotation command means. Drive control device for vertical dry rice polishing equipment.