JPS5815017B2 - Rice washing equipment for making rice crackers - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention applies to various types of rice crackers, such as hard-baked rice crackers or soft-baked rice crackers (
This invention relates to a rice washing device for producing rice crackers, which provides washed rice with a water content suitable for the intended rice cracker when washing raw rice for rice crackers (commonly known as ``Okashiyaki'').

Conventionally, for example, in the case of hard-baked rice crackers or soft-baked rice crackers, raw rice is washed with water, the moisture content of the rice is adjusted depending on the soaking time, and after draining, the rice is milled. In the case of soft-baked rice crackers, the water content is reduced by shortening the soaking time when washing the rice to reduce the water content and the grains become coarser when milled, and in the case of soft-baked rice crackers, the water soaking time is lengthened during washing to increase the water content and milled into flour. A technique is commonly used to make hard and soft rice crackers by using the particles in a fine powder state.

Conventionally, in order to adjust the moisture content of raw rice during rice washing, raw rice was placed on a wire mesh conveyor and submerged in water, or placed in a colander-like mesh basket and soaked in water while being washed. In the case of a wire mesh conveyor, the removal of the white rice bran was incomplete, resulting in rice crackers that were sticky, and in the case of a rice cracker, the rice crackers had to be washed each time by hand, which was a troublesome process, and mass production was not possible.

The method that washes raw rice mixed with water by rotating a screw conveyor in a case with a semicircular lower half has the disadvantage that a large amount of broken rice is produced and the yield is extremely low.

The present invention has been made to solve these problems. Next, this will be explained with reference to the embodiment shown in the drawings. Reference numeral 1 denotes a horizontally rotating rice washing cylinder, and the end portion of the rice washing cylinder 1 is A chute 2 for feeding the raw rice mixed with water is provided in the rice washing cylinder, and a spiral band 3 with a right-handed screw direction is attached to the inner wall of the rice washing cylinder to transport the raw rice together with water. At the front outlet (for example, the right end in the drawing), a portion of the spiral band is cut out to provide an appropriate number of outlets 4.

There are many drain holes 5 at the front outlet end of the rotary rice washing cylinder 1.
A flange 6 having a periphery of .

Then, the machine frame 8 of the rotating rice washing cylinder is made to be able to rise and fall using the hinge 11 in the forward exit direction as a fulcrum by means of a jack 10 separately attached to the foundation 9, so that the rice washing cylinder 1 can be tilted as appropriate.
(indicated by the two-dot chain line in FIG. 1), and the outer circumferential guide rail 12.
The drive rollers 13, 13° 13', 13' are positioned along the .

The drive rollers 13, 13' are adapted to rotate the rice washing cylinder at variable speeds via a chain 15, 16 from a variable speed drive unit a consisting of a motor m and a transmission 14, which are separately provided in the machine frame 8. .

Reference numeral 17.17 is a regulating roller for the rice washing cylinder 1, which is provided on the stand 18 of the machine frame, and is in contact with the side surface of the guide rail 12.12 to restrict the movement of the rice washing cylinder in the axial direction. The head of the drainage device, 20 is a protective frame plate, and 21 is a faucet.

In the present invention configured as described above, the rotary rice washing cylinder 1
Rotate to the left and feed raw rice mixed with water into chute 2.
When the rice is fed further, the right-handed spiral band 3 integrated with this inside the rice washing cylinder
The raw rice is stirred and washed while rotating and moving with water, and then falls onto the conveyor γ from the outlet and is transferred to the next process. The time it takes the raw rice mixed with rice to pass through the rice washing cylinder 1 is proportional to the rotation speed of the rice washing cylinder, so the rotation speed of the rice washing cylinder linked to the variable speed driving device a is adjusted to adjust the washing time, that is, the time when the raw rice is soaked in water. Since the standing time can be freely adjusted, by appropriately selecting the rotation speed of the rice washing cylinder, it is possible to impart an appropriate moisture content to the raw material rice for the intended rice cracker, and , The removal of white rice bran is incomplete and requires troublesome work, as in the conventional method of placing raw rice on a wire mesh conveyor and submerging it in water, or placing it in a colander-like mesh basket and soaking it in water. Moreover, a large amount of broken rice is not produced unlike in the case where raw rice mixed with water is washed and transferred through a case with a semi-circular lower half only via a screw conveyor.

Furthermore, since a needle tube 6 with a large number of drain holes 5 on the periphery is attached to the outlet of the rotating rice washing tube, water can be drained well and only the washed rice separated from water can be discharged from the outlet to the transfer conveyor γ soil. Since an appropriate number of outlets 4 are provided by cutting out a part of the spiral band, the washed raw rice can be discharged evenly.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a front view;
FIG. 2 is a side view as seen from the exit direction of the rice washing cylinder, FIG. 3 is a longitudinal sectional front view of the rice washing cylinder, and FIG. 4 is a sectional view showing the rice washing state as seen from the exit direction of the rice washing cylinder. 1...Rotating rice washing cylinder, 2...Raw material rice feeding chute, 3...Right-hand thread spiral band, 4...
・Notch outlet, 5... Drain hole, 6...
・Needle tube, 10... Jacket, 11...
hinge.

Claims (1)

[Claims] 1 A feed chute for raw rice mixed with water is provided at one end of the horizontally rotating rice washing cylinder, and a right-handed spiral band is integrally attached to the inner wall of the rice washing cylinder, and the spiral band is connected to the outlet at the front end of the spiral band. A plurality of outlets are provided by cutting out a part of the belt, and a flange having a large number of drain holes is attached to the outlet end of the rice washing cylinder, and the rice washing cylinder is rotated in conjunction with a variable speed driving device attached to the machine frame. A rice washing device for producing rice crackers, which is characterized by the following: