JPH07124483A - Grain washing device - Google Patents

Abstract

PURPOSE:To enhance a washing effect for grains by rotatably providing a tank having a hollow shape with a stirrer and making the rotating direction of the stirrer changeable over to forward and backward directions. CONSTITUTION:The central part of the tank 1 having the hollow shape is provided with a revolving shaft 15 having an axial center in a longitudinal direction and the revolving shaft 15 is made rotatable forward and backward by a forward and backward revolving motor 16. The stirrer 2 is integrally mounted at the revolving shaft 15 and the stirrer 2 rotates forward and backward, thereby washing the rice in the tank 1. Consequently, the water flow changes and the foreign matter, such as bran, sticking to the grains is removed. The washing effect is thus enhanced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain cleaning device for washing grains such as rice.

[0002]

2. Description of the Related Art It is general practice to stir grain and water contained in a tank with a stirrer for washing.

[0003]

[Problems to be Solved by the Invention] However, since the stirring body rotates in a constant direction from the start to the end of stirring, the flow of water, cereals, etc. also rotates in the same direction and therefore adheres to the cereals. The foreign matter may not be sufficiently separated depending on the state of the bran.

[0004]

The present invention provides a grain cleaning device capable of enhancing the grain cleaning, and has taken the following technical means. That is, the hollow tank 1
The grain cleaning device has a structure in which the stirring body 2 is rotatably provided and the rotation direction of the stirring body 2 is switchable between forward and reverse directions.

[0005]

The grain and water supplied to the tank 1 are agitated by the rotating agitator 2 and then the agitator 2 is rotated in the opposite direction.
Is stirred by.

[0006]

[Effect] Since the stirring direction is switched, the water flow also changes and foreign substances such as bran adhering to the grain can be removed and the cleaning effect can be enhanced.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. First, the configuration will be described. The rice washing and cooking device 3 includes a rice storing section 8 and a grain cleaning section from an upper side of a main body frame 7 in which a vertical frame 4, a horizontal frame 5 and a leg frame 6 are framed. 9 and the rice cooker 10 are arranged in that order.

The rice storing section 8 is detachably attached to a top plate which is detachably provided on the main body frame 7 and has a funnel or a fixed quantity supply roll in a box-shaped case 11 having an open lower surface. And so on. Reference numeral 12 is a lid that opens and closes a hole opened in the upper wall of the case 11, and 13 is an operation panel provided on the front wall of the case 11 and provided with various switches and display devices. It is detachable and rotatable.

The grain cleaning unit 9 includes a tank 1 for storing grains (hereinafter referred to as rice), water (for cleaning, cooking rice, etc.), cleaning means provided in the tank, and the like. The tank 1 has upper and lower end surfaces opened and a lower end formed thin, and an upper end portion is detachably attached to a lower surface of a top plate. Also, the tank 1
Is provided so as to be able to communicate with the funnel through the fixed quantity supply roll. A tank lid 14 opens and closes an inspection hole on the front surface of the tank 1.

At the center of the tank 1, a hollow rotary shaft 15 having a longitudinal axis is provided. And the rotating shaft 1
5, a gear 19 meshing with a gear 18 attached to the motor shaft 17 of the forward / reverse rotation motor 16 is detachably attached to the upper end portion. A plurality of stirring bodies 2 are provided on the outer surface of the rotary shaft 15. Reference numeral 20 denotes a tank plate integrally attached to the lower end of the tank 1, and a jacket 22 having a cylindrical filter 21 having a large number of holes in the lower surface of the tank 1 that do not allow rice to pass therethrough. Is detachably installed. Reference numeral 23 is a packing having a hole having substantially the same diameter as the inner diameter of the filter 21, and 24 is a fixing plate having a hole slightly larger than the hole of the packing 23 and fixing the packing 23 to the jacket 22.

The valve shaft 25 has an intermediate portion internally mounted on the rotary shaft 15,
An upper end portion protruding from the rotary shaft 15 is provided so as to be engageable with a cam mechanism 27 operated by a motor 26, and a lower end portion is provided with a screw portion 28 extending to the inside of the filter 21. The valve 29 is a conical valve having a valve shaft hole 30 through which the valve shaft 25 is inserted, and has a large and small recess 31,
32 is provided. 33 is a spring, 34 is a valve shaft 25
The reference numeral 35 designates a wing nut having a hole through which the spring passes. Reference numeral 36 denotes a conical shape in which a lower surface has a surface 37 having a diameter substantially equal to or larger than that of the lower surface of the valve 29, an upper surface formed in a flat shape, and an inclined surface formed between the flat surface and the surface 37. It is a heat shield.

The rice cooker 10 is a rice cooker 38 provided so as to be movable in the front-back direction with respect to the leg frame 6 in a front view of the rice washing and rice cooker 3, and an outer pot, an inner pot and a lid placed on the rice cooker. It is equipped with a rice cooker 39 and the like. The rice cooker 38 is provided with a plurality of casters 40 on the lower surface thereof, and a drawer arm 41 having the height of the middle portion of the rice cooker 39 in the vertical direction at the front end thereof. Further, the gas stove provided in the outer pot of the rice cooker 39 communicates with a gas pipe 42 communicating with a gas supply source, and a valve (a solenoid valve in the embodiment) 43 is provided between the gas and the gas stove.

Explaining the block circuit of FIG. 8,
Reference numeral 44 denotes an arithmetic control unit (hereinafter referred to as CP) of a microcomputer having a memory having various data and control programs built therein.
It is called U) and performs arithmetic / logical / comparison operations.
The information input to the CPU 44 via the input interface 45 includes signals from various switches provided on the operation panel 13 (for example, device ON information from the main switch, rice cooking amount selection information from the rice cooking amount switch, etc.). )
There is. In addition, the CP via the output interface 46
The information output from U44 is a drive / stop command signal to the drive motor 47 for driving the constant quantity supply roll, a normal / reverse drive / stop command signal to the forward / reverse rotation motor 16, and rotation. A number control signal, a drive / stop command signal to the motor 26, an excitation signal of the valve 43, a fan drive motor 48 for rotating a fan (not shown) provided on the top plate and blowing downward.
Drive / stop command signal to the display panel, a display signal to a display tool provided on the operation panel 13, and the like.

Next, the operation will be described. First, the rice cooker 39 with the lid removed is placed on the rice cooker 38, and the rice cooker 38 is pushed to the leg frame 6 and set at a predetermined position. Subsequently, after turning on the main switch of the operation panel 13, the rice cooking amount is selected by the rice cooking amount switch. At this time, the fan drive motor 48 is driven by the signal of the CPU 44 output through the output interface 46 to rotate the fan. When the work start switch is turned "ON", the CPU 44 outputs a drive command signal to the drive motor 47, and in connection with this, the fixed quantity supply roll rotates and a predetermined amount of rice is supplied every rotation. Is supplied to the tank 1. When the number of rotations corresponding to the set amount of rice is reached, the CPU 44 outputs a stop signal to the drive motor 47.

Subsequently, the CPU 44 outputs a forward drive command to the forward / reverse rotation motor 16 via the output interface 46, so that the forward / reverse rotation motor 1 is output via the gears 18 and 19.
The rotary shaft 15 which has been transmitted with the rotational power of
Rotate in the same direction as this. In addition, water is supplied to the tank 1 by the water supply means that communicates with the water supply source. Therefore, the rice is agitated by the agitator 2 and foreign matter such as bran and dust attached to the rice is separated. Then, the foreign matter enters the jacket 22 through the hole of the filter 21 and is discharged through a predetermined guide means.

When a predetermined time elapses, the CPU 44 outputs a reverse drive command signal to the forward / reverse motor 16 via the output interface 46, so that the rotating shaft 15 reverses and the stirring body 2 reverses. Therefore, the stirring body 2 rotates in the direction opposite to the previous rotation direction to stir and wash rice and water. Thereafter, the stirring body 2 repeats forward and reverse to wash the rice. In addition,
In this embodiment, the forward and reverse rotations are repeated a plurality of times, but the first half of the cleaning may be forward rotation and the second half may be reversed. In this way, since the stirring body 2 rotates in the normal direction during cleaning,
Foreign substances can be separated and cleaning performance can be improved. When the rice is washed lighter than the washing (rinsing), the CPU 4
4 outputs to the forward / reverse rotation motor 16 a drive command signal having a rotational speed lower than the normal rotational speed. Therefore, since the rotating shaft 15 and the agitator 2 rotate at a low speed, it is possible to prevent cracked rice or scratches from being strongly washed with respect to rice that has been washed in advance or unwashed rice.

After the above rice washing work is completed, the jacket 2
The drain hole 2 is closed, and a predetermined amount of water is supplied to the tank 1 by the water supply means. Next, since the CPU 44 outputs a drive command signal to the motor 26 via the output interface 46, the motor 26 is driven and the valve shaft 2 via the cam mechanism 27.
Move 5 down. Then, the lower end of the filter-21 is opened and the rice and water are discharged, and the dropped rice and water are collected in the inner pot of the rice cooker 39 located below. The operator pulls the drawer arm 41 to pull the rice cooker 38 into the leg frame 6
Pull out from and cover the inner pot. Then, the operator pushes the drawer arm 41 to push the rice cooker 38 into a predetermined position of the leg frame 6. In this case, the rice cooker 38 is a caster.
Since 40 is provided separately from the main body frame 7, it is not necessary to carry a heavy rice cooker 39, and it can be easily and easily moved to a place away from the rice washing and cooking device 3.

Next, when the rice cooking operation switch is turned "ON", the CPU 44 outputs an "open" signal to the valve 43 via the output interface 46. Then, when the ignition switch is turned "ON", the gas is ignited to heat the inner pot and start the rice cooking operation. After that, when the rice cooking work is completed, the display of the operation panel 13 displays the completion of rice cooking together with each display.

In addition, there is a case where the rice washing work is performed at another place and the rice cooking work is performed by using the rice cooking section 10 of the rice washing and rice cooking device 3. In this case, however, the fan is rotating in the same manner as described above. The steam generated during rice cooking and floating is blown downward by the fan. Therefore, rice washing and rice cooking device 3
Since the fan rotates and blows air downwards in both the case of performing the rice-washing operation and the rice-washing operation using the rice-cooking unit 10 without performing the rice-washing, it is difficult for the operation panel 13 to hit the floating steam. Therefore, dew condensation does not occur in each device of the operation panel 13 and the devices normally function.

[Brief description of drawings]

FIG. 1 is a front view of a rice washing and cooking device.

FIG. 2 is a side view of the rice washing and cooking device.

FIG. 3 is a plan view of a rice washing and rice cooking device.

FIG. 4 is a side sectional view of a grain cleaning unit.

FIG. 5 is a perspective view of the main body frame with a part thereof removed.

FIG. 6 is a side view of the rice cooker.

FIG. 7 is a plan view of the rice cooker.

FIG. 8 is a block circuit.

[Explanation of symbols]

 1 tank 2 stirrer

Claims (1)

[Claims] 1. A grain cleaning device comprising a hollow tank 1 rotatably provided with an agitator 2 and a rotational direction of the agitator 2 being switchable between forward and reverse directions.