JP2000015118A - Rice milling device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stably obtain a low pearling pressure in a rice milling device capable of varying this pearling pressure by limiting the flow of polished rice within a polishing chamber by a resistance cap regulated by a spring, or the like. SOLUTION: This rice milling device has the resistance cap 39 which is pivotally supported at a first supporting shaft 41 arranged in parallel with a horizontal revolving shaft and is disposed on the rice discharge side of the polishing chamber freely contactably under a prescribed pressure therewith by a pressure regulating spring 42 having >=1 step of a spring constant, a regulating knob which is freely slidingly disposed at a second supporting shaft 44 intersecting with this first supporting shaft 41 and has a freely turnable roller 45 and a pressure regulating plate 46 which rotates around a fulcrum 41 and is pressed the one surface to the pressure regulating spring 42 and is pressed at the other surface to this roller 45 and curves in a direction where the pressure regulating spring 42 is made shorter the more distant from the fulcrum 41, i.e., toward the roller 45 side. The pearling pressure of the resistance cap 39 is regulated by this plate.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice polisher having a polishing function for removing oxides attached to the surface of polished rice mainly used at home, a brown rice dividing function and a polished rice function. is there.

[0002] In the following, in the text, polishing, whitening and whitening are all referred to as milled rice.

[0003]

2. Description of the Related Art In recent years, with the desire for gourmet foods and healthy foods, polished rice is a living organism and its surface oxidizes over time and its taste deteriorates, so it is desirable to remove oxides. There is a growing need to mill rice, cook freshly cooked rice, and eat it.

Conventionally, this kind of rice mill is disclosed in Japanese Patent Laid-Open No. 4-274.
The configuration is as shown in Japanese Patent Publication No. 44-44, and will be described with reference to FIG.

[0005] As shown in the figure, a rice mill 1 has a box-shaped container frame 2.
The rice bran refining cylinder 3 is laid horizontally inside the inside, and the rotating horizontal axis 4 is
And the rotating horizontal shaft 4 is supported by the bearing 5.
The horizontal axis 4 is provided with a milling trochanter 6 and a spiral trochanter 7 each of which is a friction type roll, and the outer circumference thereof is formed in a milling chamber 8. A supply port 9 is provided on the rice supply side of the milling chamber 8. On the rice discharging side, a rice discharging port 11 provided with a milling degree adjusting device 10 is provided.

In the above arrangement, when the brown rice supplied from the supply port 9 falls into the milling chamber 8 and is milled by the rotation of the milling trochanter 6, the milling degree adjusting device 10 is provided at the rice discharging port.
Then, after a suitable milling pressure is applied to achieve a predetermined degree of milling, the rice is dropped from the rice discharge port 11 and discharged out of the rice mill 1.

The apparatus for adjusting the degree of whitening is as shown in Japanese Utility Model Publication No. Sho 62-42758.
This will be described with reference to FIG.

As shown in the figure, a whiteness adjusting device 12 is provided with a flat resistive lid 13 on a rice discharging side of a whitening chamber 8 formed by the outer periphery of a whitening trochanter 6 which is a friction-type roll.
Are provided so as to be freely pressed. The resistance lid 13 is fixed to a mounting plate 16 which is supported by a support shaft 14 and is urged to the rice discharging side by a pressure adjusting spring 15.
The pressure adjusting spring 15 is displaced by a rear cam 17a of the rotary knob 17 and is adjusted by an adjusting plate 18 which is supported by the rotary knob 4.

[0009]

However, in such a conventional rice mill, the resistance lid 13 adjusted by a spring or the like is used.
Thus, the flow of the milled rice in the milling chamber 8 is restricted, and the so-called milling pressure is increased. When the milling of polished rice is performed because the milling pressure is set for brown rice distribution and milling, the milling pressure is too high. In other words, because the pressure of the polished rice is too high, not only the fatty acids on the surface of the polished rice are removed, but also the starch layer of the polished rice is removed and cooked, resulting in rice with a rough surface and reduced taste. It is also conceivable to set the rice polishing pressure to zero, that is, to prevent the resistance lid 13 from coming into contact with the rice discharge port 11. However, when the main body is not operated, the rice remaining in the rice bran polishing cylinder 3 from the rice discharge port 11 is not considered. Rice that had fallen and sometimes stained the area around the main unit. Furthermore, when the pressure of the polished rice is set low, there is a problem that when the brown rice is polished, the polished rice does not become polished rice due to insufficient rice pressure.

An object of the present invention is to solve the above-mentioned problems, and an object of the present invention is to achieve a polishing function of polished rice, a function of distributing brown rice, and a function of polished rice with one unit.

[0011]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a polishing chamber, a rotating horizontal shaft inserted into the polishing chamber, and a rice discharging side of the polishing chamber. A whiteness adjustment device, the whiteness adjustment device has a resistance lid pressed against the rice discharge side of the whitening chamber by a pressure adjustment spring,
The spring constant of the pressure adjusting spring is multi-step according to the displacement amount.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claims 1 and 2 is directed to a polishing chamber, a rotating horizontal axis inserted into the polishing chamber, and a milling degree disposed on the rice discharging side of the polishing chamber. With an adjustment device,
The milling degree adjusting device has a resistance lid pressed against the rice discharging side of the milling chamber by a pressure adjusting spring, and the spring constant of the pressure adjusting spring is multi-step according to the displacement amount. The low pressure of rice polishing with low white rice polishing function gives the high rice pressure necessary for brown rice fractionation and whitening.

According to a third aspect of the present invention, in particular, the pressure adjustment spring has a spring constant in two stages by forming a densely wound portion and a coarsely wound portion with a single spring material. According to the above, two types of spring constants can be set with one spring, so that the number of parts is reduced.

According to a fourth aspect of the present invention, the pressure adjusting spring is a drum-shaped spring whose winding diameter increases toward the center in the longitudinal direction. According to this configuration, the rate of change of the spring constant can be made continuous, so that the operation of the adjustment knob is uniform and easy to use.

[0015]

(Embodiment 1) Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

First, the overall configuration of the rice mill will be described with reference to FIG. In FIG. 3, the rice polishing machine 21 has a rice bran polishing tube 23 laid horizontally inside a box-shaped container frame 22, a rotating horizontal shaft 24 is inserted therein, and the rotating horizontal shaft 24 is supported by a bearing 25. . The abscissa 24 has a milling trochanter 2 which is a friction type roll.
6 and the spiral trochanter 27 are respectively mounted on the shaft, and the outer periphery thereof is formed in a milling chamber 28.
A rice discharge port 31 provided with a whitening adjusting device 30 is provided on the rice discharge side. The rice feed port 29 is provided with a hopper 32 for storing grains before milling, and a bran container 33 below the bran removing whitening cylinder 23, respectively. The hopper 32 is provided with a facing optical sensor 34 as detecting means for detecting the presence or absence of a grain. A motor 35 as a driving unit transmits a rotational force to the rotating horizontal shaft 24 by a belt 36, and its operation is controlled by a control unit 37. The operation switch 38 sends signals to the control means 37 to start and stop rice polishing.

The adjusting device 30 adjusts the urging force of a resistance lid 39 provided on the rice discharging side of the milling chamber 28 so as to be able to press freely by means of an adjusting knob 40 to obtain a predetermined milling pressure. This resistance lid 39 is, as shown in FIGS.
It is supported by a first support shaft 41 arranged in parallel with the rotation horizontal shaft 24 and is fixed to a mounting plate 43 urged toward the rice discharging side by a coil-shaped pressure adjusting spring 42. The pressure adjusting spring 42 is composed of a densely wound portion 42a in which the spring constant is reduced by tightly winding and a coarsely wound portion 42b in which the spring constant is increased by roughly winding. The adjustment knob 40 is slidably provided on a second support shaft 44 that intersects the first support shaft 41 and includes a rotatable roller 45. The pressure adjusting plate 46 rotates about the first fulcrum 47, and
6a is in contact with the pressure adjusting spring 42, the other surface is in contact with the roller 45, and the contact surface 46b is formed in a corrugated shape and has a first shape.
The distance from the fulcrum 47 to the pressure adjusting spring 42 is shortened, that is, the pressure adjusting spring 42 is curved toward the roller 45 side. The contact surface 46 between the pressure adjusting plate 46 and the pressure adjusting spring 42 is provided at a position where the distance from the first fulcrum 47 is shorter than the longest corrugated contact surface 46b.

In the above arrangement, the milled rice / brown rice supplied from the rice feed port 29 falls into the milling chamber 28, and the milled trochanter 2
When the rice is milled by the rotation of 6, the rice milling pressure is appropriately applied by the milling degree adjusting device 30 at the milling outlet 31 to reach a predetermined milling degree, and then the rice is dropped from the milling outlet 31 and discharged out of the milling device. You.

Next, the operation of the rice mill configured as described above will be described. When the operation switch 38 is pressed, the motor 35 is driven and the rotational force is transmitted by the belt 36,
The rotation horizontal shaft 24 rotates. Then, the milled rice / brown rice stored in the hopper 32 flows down to the milling chamber 28 from the rice feed port 29. This rice is first sent to the spiral trochanter 27,
It is transported by the spiral groove 27a, is taken over by the milling trochanter 26, flows down from the rice discharge port 31, and flows from the discharge port 31 to the rice mill 2
It is discharged outside 1. At the rice discharge port 31, the pressure adjusting spring 4
Since the flow of the polished rice in the polishing room 28 is restricted by the resistance lid 39 urged toward the rice discharge port side in step 2 to increase the so-called polishing pressure, the brown rice rubs against each other in the polishing room 28 so that the polished rice is polished. Is done. The rice bran rubbed off since the slit 23a is inserted in the rice bran refining cylinder 23 is dropped into the rice bran container 33 from the slit 23a and stored. Hopper 3
When there is no more rice in the sensor 2, there is no more rice passing through the facing optical sensor 34, and the control means 37 returns to the motor 35 after a certain period of time.
To stop.

The detail of the whiteness adjusting device 30 is as follows.
The mounting plate 43 of the resistance lid 39 is urged toward the rice discharging side by the pressure adjusting spring 42, and the reaction force exerts a moment force on the pressure adjusting plate 46 to press the adjustment knob roller 45 about the fulcrum 47. When the adjustment knob 40 is moved in a direction away from the fulcrum 47 by sliding on the second support shaft 44, the corrugated abutment surface 46 b of the pressure adjustment plate 46 is curved toward the roller 45, so that the fulcrum 47 is As the contact surface 46a rotates, the pressure adjustment spring 42 presses the pressure adjustment spring 42, the overall length of the pressure adjustment spring 42 is shortened, and the urging force of the resistance lid 39 increases. Conversely, when the adjustment knob 40 is moved in a direction to approach the fulcrum 47, the pressure adjustment plate 46
Since the corrugated contact surface 46b is curved toward the roller 45, the contact surface 46b rotates about the fulcrum 47, the overall length of the pressure adjusting spring 42 becomes longer, and the urging force of the resistance lid 39 decreases. By selecting the adjustment knob 40 at an appropriate position in this manner, a predetermined grinding pressure can be obtained. At this time, the pressure adjusting spring 4
The displacement amount of 2 and the rice polishing pressure will be described with reference to FIG. Assuming that the maximum displacement amount of the densely wound portion 42a of the pressure adjusting spring 42 is s, from the displacement amount 0 to s, the increase in the milling pressure with respect to the change amount is small according to the spring constant of the densely wound portion 42a, but the displacement amount is s. Above this, the spring constant becomes higher because the coarsely wound portion 42b is displaced. Now, if the rice polishing pressure of the white rice polishing function is set by s>, rice can be milled with a stable low rice polishing pressure.

(Embodiment 2) Next, a second embodiment of the present invention will be described. 4 is the same as that of the first embodiment except for the pressure adjusting spring, the displacement amount of the pressure adjusting spring and the rice polishing pressure will be described with reference to FIG. The pressure adjusting spring 48 is a drum-shaped spring whose winding diameter increases toward the center in the longitudinal direction. When the displacement starts, the pressure is reduced from the maximum diameter portion 48a of the pressure adjusting spring 48, so that the polishing pressure is reduced. . Therefore, a high polishing pressure required for browning brown rice can be obtained from a low polishing pressure of the white rice polishing function. Further, since the rate of change of the spring constant changes continuously, the operating force of the adjustment knob is uniform, and the usability is improved.

As described above, the rice mill of the embodiment can obtain the high rice milling pressure necessary for brown rice distribution and milling from the milling pressure of the milled rice having a low white rice polishing function.

[0023]

As described above, according to the first and second aspects of the present invention, the whitening chamber, the rotating horizontal shaft inserted into the whitening chamber, and the rice discharging side of the whitening chamber are arranged. Provided with a milling degree adjustment device, wherein the milling degree adjustment device has a resistance lid pressed against the rice discharge side of the milling chamber by a pressure adjusting spring, and the spring constant of the pressure adjusting spring is a displacement amount. In the case of a white rice polishing function that removes oxides attached to the surface of the polished rice by becoming multi-steps, etc., the displacement amount is reduced, and a low polished rice pressure is stably obtained with a spring having a small spring constant. In the case of the brown rice dividing function and the whitening function, it is possible to provide a rice mill capable of increasing a displacement amount and obtaining a high rice polishing pressure.

According to the third aspect of the present invention, in particular, the pressure adjustment spring has two spring constants by forming a densely wound portion and a coarsely wound portion with one spring material.
The present invention can provide a rice mill having a simple configuration, a white rice polishing function, a brown rice distribution function, and a whitening function.

According to the fourth aspect of the invention, in particular, when the pressure adjusting spring is a drum-shaped spring whose winding diameter increases toward the center in the longitudinal direction, the spring constant is reduced when the displacement is small. Is small and is large when it is large, so that it is possible to provide an easy-to-use rice mill with uniform operating force.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part of a rice mill according to a first embodiment of the present invention.

FIG. 2 is a characteristic diagram of displacement of a pressure adjusting spring and a milling load of the milling machine.

FIG. 3 is a side sectional view of the rice mill.

FIG. 4 is a perspective view of a main part of a rice mill according to a second embodiment of the present invention.

FIG. 5 is a characteristic diagram of displacement of a pressure adjustment spring and rice polishing load of the rice polishing machine.

FIG. 6 is a side sectional view of a conventional rice mill.

FIG. 7 is a perspective view of a pressure adjusting device of the rice mill.

[Explanation of symbols]

 Reference Signs List 30 Refining degree adjusting device 39 Resistance lid 40 Adjusting knob 41 First support shaft 42 Pressure adjusting spring 42a Closely wound portion 42b Roughly wound portion 48 Pressure adjusting spring 48a Maximum diameter portion 48b Both ends

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Kenji Kinoshita 1006 Kadoma Kadoma, Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (72) Hideyuki Ohashi 1006 Kadoma Kadoma, Kadoma, Osaka Pref. 72) Inventor Saori Kako 1006 Kazuma Kadoma, Osaka Pref. Matsushita Electric Industrial Co., Ltd. (72) Inventor Shigemoto 447 No. 4 Shimoichi, Sanyo-cho, Akaiwa-gun, Okayama Prefecture DA03 DA06 DH33 DH37 DH80 FA10 HA02 HB09 JA03 JA15 JA19 JC03 JC10 KA06 LA02 MA07 MA21 MA26 MB01 MB07 MB08

Claims (4)

[Claims] 1. A refining chamber, a rotating horizontal axis inserted into the refining chamber, and a refining degree adjusting device disposed on a rice discharging side of the refining chamber, wherein the refining degree adjusting device is A rice polishing machine having a resistance lid pressed against a rice discharging side of the whitening chamber by a pressure adjusting spring, wherein a spring constant of the pressure adjusting spring is multi-step according to a displacement amount. 2. A horizontally-removed rice bran refining cylinder, and a rotating horizontal shaft is inserted into the cylinder, and the rotating horizontal shaft is supported by a bearing. The rotating horizontal shaft has a polishing roller, which is a friction type roll, and a spiral. Each trochanter is axially mounted and its outer periphery is formed in a milling chamber, a supply port is provided on the rice supply side of the milling chamber, and a milling degree adjusting device is provided on the rice discharging side, and the milling degree adjusting apparatus is milled by a pressure adjusting spring. A resistance lid is provided on the rice discharging side of the chamber so as to be capable of being pressed against the rice, and a pressure adjustment plate for displacing the pressure adjustment spring is provided.
A rice mill with a spring constant set to one or more steps, with a small spring constant for small displacements and a large spring constant for large displacements. 3. The rice polishing machine according to claim 2, wherein the pressure adjusting spring has a spring constant in two stages by forming a densely wound portion and a coarsely wound portion with one spring material. 4. The pressure adjusting spring according to claim 2, wherein the spring constant is reduced when the displacement amount is small, and increased when the displacement amount is large, by using a drum-shaped spring whose winding diameter increases toward the center in the longitudinal direction. Rice mill.