JPS6319224B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for adjusting the milling resistance and the amount of rice grains supplied in a circulating rice mill, and an adjusting device used therefor.

As is well known, in order to efficiently mill rice using a circulating rice milling machine, it is important to always adjust the balance between milling resistance (milling pressure) and rice grain supply amount (falling amount) to an appropriate state. However, in conventional circulation-type rice milling machines, the adjustment of the milling resistance and the amount of rice grains supplied are performed by moving completely separate levers, dials, etc., which makes handling operations extremely troublesome. Of course, it is very difficult to maintain a proper balance between milling resistance and rice grain supply at all times, resulting in problems such as long milling time and a large amount of broken rice.

In order to solve these problems, the present inventor proposed the invention of Japanese Patent Application No. 55-184652 (Japanese Unexamined Patent Publication No. 57-107247), in which a shutter for the rice grain drop opening at the bottom of the hopper and a rice grain circulation opening for rice grains are installed. The resistor plate and the resistor plate are interlocked from the time of rice grain loading to the completion of milling, so that the shutter is at a position where the rice grain supply amount changes from zero to a predetermined supply amount, and the resistor plate is located at a position where the milling resistance becomes from zero to a predetermined strength. Then, during bran removal, only the shutter is moved to a position where the amount of rice grains supplied is further increased, and the resistance plate is moved in the direction to return to the initial no-load position. We proposed a device that succeeded in solving several drawbacks associated with conventional circulating rice mills.

However, the circulation type rice milling machine to which the invention of the earlier patent application No. 184652/1988 can perform rice milling work in a suitable state if there is sufficient power, but the resistance plate and shutter When the resistance plate moves in the direction where the crushing resistance becomes stronger, the shutter also moves in the direction where the amount of falling rice grains increases. As the amount of falling rice grains increases, the load for transfer and circulation will also increase, and if there is not enough power or if the power is small, it is conceivable that the performance may not be fully demonstrated.

The present invention was developed in order to solve the above problem, and the method uses a device as shown in the drawing in a circulating rice mill, and a resistor at the rice grain circulation opening and a rice grain drop. Using the shutter of the mouth, the resistor starts from the position where the ejaculatory force resistance is zero or minimum, and the end point is the position where the ejaculatory force resistance is maximum.
Conversely, the shutter starts at the position where the amount of rice grains supplied is maximum and the position where the amount of rice grains supplied is minimum or zero as the end point, aligning the two starting and ending points with each other and moving synchronously. This method is characterized by simultaneously adjusting the strength of resistance and the amount of rice grains supplied.

Hereinafter, embodiments of the present invention will be explained in detail with reference to the drawings. Fig. 1 shows an example of the implementation structure of a circulating rice mill to which the method of the present invention is applied.
Since the structure of the milling operation part and the power transmission part of the rice milling machine is basically the same as that of conventional machines, detailed explanation thereof will be omitted, and the structure of the adjusting device and its operation will be explained below.

That is, in the drawing, 1 is a hopper installed at the top of the cabinet 2 of the circulating rice mill, 3 is a milling roll installed inside the milling chamber 4, and 5 is a rice bran removal screen, which is placed in the rice grain drop opening 6 at the bottom of the hopper 1. is shutter 7,
A resistor 9 is connected to a support shaft 10 at the rice grain circulation port 8, respectively.
11 and is pivotally supported so as to be swingable. Of these, the arm rod 12 is attached to the support shaft 10 on the shutter 7 side.
Further, arm rods 13 are provided on the support shaft 11 on the resistor 9 side, respectively, protruding in the same direction (downward in the case shown), and the tips of both arm rods 12 and 13 are connected to a connecting rod 14 and are fixed in the same direction. They are connected so that they can rotate simultaneously within the swing range of .

In the drawing, 15 indicates the shutter 7 and the resistor 9.
This is a shift lever for operating from outside the machine, and is a shift lever for operating the shaft 10 on the shutter 7 side or the shaft 11 on the resistor 9 side (in the case shown, the shaft 11 on the resistor side).
1, and the base 15a of the lever 15 is attached to the support shaft 1.
1, and the intermediate part can be bent left and right using a pin 16 as a fulcrum, and the switching operation of the shift lever 15 is performed by moving the lever 15 along a guide hole 17 provided in the side wall surface of the cabinet 2. The stop position of the shift lever 15 can be changed to four stages by sequentially moving to positions b, c, d or d, c, b, and a.

Since the adjustment device installed in the circulation type rice milling machine to which the present invention is applied has the above structure, the relationship between the resistor 9 and the shutter 7 in each process of rice milling is such that when loading rice grains and when starting the machine, the shift lever 1
5 is stopped at point a in FIG. 2, the resistor 9 stands upward as shown in FIG. 3, and is at a position where its pumping resistance (pulling pressure) is zero or minimum
While it is almost under no load, the shutter 7 hangs downward and the amount of rice grains supplied (falling amount)
is at the maximum position, so even if the shutter 7 is fully open, the other resistor 9 is in the no-load position, and the milling operation section of the rice mill has a function that merely transfers and circulates the rice grains. Since only the load is applied, there is no problem in startability, and there is no possibility that an excessive load will be applied to the milling roll 3 and cause the motor to burn out.

Next, when polishing rice by applying the milling resistance, move the shift lever 15 from point a to point b, point c, and point d in order, and the resistor 9 will move downward from the top and move to the fourth position. While rotating as shown in the figure, it moves in the direction where the pumping resistance is maximum starting from the position where the pumping resistance is zero or minimum, and in synchronization with this, the shutter 7 conversely rotates from the bottom to the top. Then, starting from the position where the amount of rice grains supplied is the maximum, it moves in the direction where the amount of rice grains supplied is the minimum or zero. Therefore, in the case of the present invention, even if the milling resistance is increased, the amount of rice grains supplied is reduced, and the load on the transfer circulation is reduced, so that the milling resistance can be applied in a dynamically balanced state.

In addition, when performing the final bran removal after completing the milling of the rice grains, by returning the shift lever 15 to the original point a, the strength of the milling resistance becomes zero or minimum, and the amount of rice grains supplied is maximized. Since the positions of the resistor 9 and the shutter 7 are switched in this manner, only the transfer and circulation of the rice grains is carried out in a state where the polishing resistance is zero, and the bran adhering to the surface of the rice grains can be efficiently and quickly removed. .

As described above, according to the present invention, when milling rice using a circulation type rice milling machine, the resistor and the shutter are interlocked with each other to keep the balance between the milling resistance and the amount of rice grains supplied in an appropriate state at all times. With a single lever, you can easily apply the most efficient milling resistance to a degree that does not cause broken rice and balance the power by adjusting the amount of rice grains supplied.
Of course, it can significantly improve the efficiency of rice milling work,
Problems such as excessive load being applied to the milling rolls and motors, or the occurrence of a large amount of broken rice are all solved at once, and together with the fact that the structure of the device is simple and the manufacturing and modification costs are low, it is completely ideal. It is possible to provide a circulation type rice milling machine with a reusable function.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view showing an example of a specific implementation structure of a circulating rice mill to which the present invention is applied;
The figure is a side view showing the shape of the shift lever guide hole provided in the side wall of the cabinet, and Figures 3 and 4 are front views of the main parts showing the interlocking state of the resistor and shutter as the shift lever changes. It is a diagram. 1...hopper, 2...cabinet, 3...
Seed roll, 4... Seed chamber, 5... Rice bran removal net, 6...
...Rice grain falling port, 7...Shutter, 8...Rice grain circulation port, 9...Resistor, 10, 11...Spindle, 1
2, 13... arm rod, 14... connecting rod, 15... shift lever, 15a... base of lever, 16... pin, 17... guide hole.

Claims (1)

[Scope of Claims] 1. A resistor at the rice grain circulation opening and a shutter at the rice grain fall opening, the resistor having a starting point at a position where its milling resistance is zero or minimum and an end point at a position where its milling resistance is maximum, and On the other hand, the shutter starts at the position where the amount of rice grains supplied is maximum and ends at the position where the amount of rice grains supplied is the minimum or zero, and while moving synchronously with each of the two starting and ending points coincident with each other, the milling resistance A method for adjusting the milling resistance and the amount of rice grains supplied in a circulating rice mill, which is characterized by simultaneously adjusting the strength of the grinding force and the amount of rice grains supplied. 2. A resistor is attached to the rice grain circulation opening at the bottom of the hopper, and a shutter is fixed to a spindle at the rice grain drop opening and pivoted so as to be able to swing, and an arm rod is provided at one end of each spindle that protrudes in the same direction. The tips of the rods are connected by a continuous rod so that they can simultaneously rotate within a predetermined swing range in the same direction, and the corresponding shaft is connected to either the resistor side support shaft or the shutter side support shaft. A device for adjusting the milling resistance and the amount of rice grains supplied in a circulating rice mill, characterized by being equipped with a shift lever that adjusts the amount of rotation of one spindle and the other spindle in several stages.