JPS6239011B2 - - Google Patents

Description

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

Conventionally, when using a circulating rice mill to mill rice grains and remove bran, the amount of rice grains supplied and the milling resistance were adjusted by operating separate levers, dials, etc. Not only is the handling operation extremely troublesome, but the balance between the amount of rice grains supplied and the milling resistance is often not properly maintained, and if the amount of rice grains supplied is too large, the milling rolls If an excessive load is placed on the rice grinder or the motor, or if the amount of rice supplied is too small, there are problems such as a very long milling time or a large amount of broken rice.

As a result of various studies and experiments on this point, the present inventor found that when using a circulating rice milling machine to mill rice grains and remove bran, the milling resistance is zero when rice grains are loaded, and the rice grains are not supplied to the milling chamber. When the amount becomes zero and a predetermined pumping resistance is applied during pumping operation, the supply amount also becomes a predetermined amount. After polishing is completed, when finishing the rice bran is removed, the polishing resistance becomes zero and the supply amount further increases. We found that there is a fairly constant relationship.

Based on this knowledge, the present invention proposes that the above-mentioned conventional problems can be solved at once by adjusting the supply amount and adjusting the pumping resistance in conjunction with each other so as to satisfy the above-mentioned relationship. They focused on this and succeeded in completing the present invention.The method uses a device as shown in the drawing in a circulating rice mill, and reduces the resistance of the rice grain drop opening at the bottom of the hopper and the rice grain circulation opening. The shutter and plate are interlocked from the time of rice grain loading to the completion of milling, and the shutter is located at the position where the amount of rice grains supplied goes from zero to a predetermined supply amount, and the resistance plate is located at the 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 a direction in which it returns to its initial no-load position. It is something to do.

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 circulation type rice mill to which the method of the present invention is applied, and shows the milling operation part and power transmission part of the rice mill. The structure of the hopper is basically the same as that of conventional machines, so a detailed explanation will be omitted, and the structure and operation of the adjusting device provided at the bottom of the hopper 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,
Resistance plates 9 are attached to support shafts 10 and 11 at the rice grain circulation opening 8, respectively.
It is fixed to and pivotably supported. Of these, an arm rod 12 that moves together with the shutter 7 is fixed to one end of the shaft 10 on the shutter side, and a spring 13 is always biased in the meshing direction to one end of the shaft 11 on the resistance plate side. A pawl clutch 14 is provided, which is made up of an idler 14a and a stator 14b fixed to the support shaft 11, and the stator 14b of the pawl clutch 14 has protrusions on the outer periphery that engage with the grooves 15 of the stator 14b. A bell crank 17 is fitted to the bell crank 16 so that it can idle at a predetermined swing angle, and between one end 17a of the bell crank 17 and the tip 12a of the arm rod 12 on the shutter side, both can be interlocked. A connecting rod 18 is provided on the other end 17b of the bell crank 17 for co-rotating the support shaft 11 in the circumferential direction via the pawl clutch 14 or allowing it to idle. The shift lever 19 is mounted on a pin 20 so as to be able to swing left and right, and the switching operation is performed by moving the idler 14a of the pawl clutch 14 in the axial direction by an auxiliary lever 21 that follows the shift lever 19 using the pin 20 as a fulcrum. The shift lever 19 is moved by moving the shift lever 19 along a guide hole 22 provided in the side wall surface of the cabinet 2. 19 a,
The stop position of the shift lever 19 can be changed to three stages by sequentially moving to positions b, c or c, b, and a.

Since the adjustment device installed in the circulating rice mill to which the present invention is applied has the above-mentioned structure, the shift lever 19 is at point a in FIG. As shown in the figure, they are in an engaged state, and the shutter 7 provided at the rice grain falling port 6 at the bottom of the hopper 1 is completely closed as shown in FIG. Since the rice grains are erected upward and are in an unloaded state, at this time, the relationship between the amount of rice grains supplied and the milling resistance are both zero. Next, when the shift lever 19 is rotated downward and moved from point a to point b in FIG. 2, the support shaft 11 is rotated while the idler 14a and stator 14b of the pawl clutch 14 are engaged. The resistance plate 9 and the shutter 7 are mutually interlocked through the bell crank 17, the connecting rod 18, and the arm rod 12, and each rotates from the position shown by the chain line in FIG. 6 to the position shown by the solid line. The resistance plate 9 moves proportionally to the position where the amount of rice grains supplied goes from zero to a predetermined supply amount, and the resistance plate 9 moves proportionally from zero to the position where the crushing resistance becomes a predetermined strength. When a predetermined milling resistance is applied by the plate 9, the amount of rice grains supplied is automatically adjusted to the predetermined amount in conjunction with this. After completing the purification as described above,
When performing the finishing rice bran removal, move the shift lever 19 to the left along the guide hole 22, and then move it further downward from point b to point c in Fig. 2, and then move the shift lever 19 to the left. When the pawl clutch 14 is moved to the position shown in FIG. Due to the pressure of the extruded rice grains, it rotates from the position shown by the chain line in FIG. As the shutter 7 is pushed down, the shutter 7 moves through the connecting rod 18, arm rod 12, and support shaft 10 from the position shown by the chain line in FIG. can be further increased and adjusted so that only the bran removal operation of rice grains can be performed efficiently in a short time. After the rice bran removal is completed, the semen chamber 4
By opening the opening/closing lid 4a at the front end, you can take out the milled rice that has been completely milled and bran removed.
If the shift lever 19 is moved from point O to point B and then to point A and unmilled rice grains are pushed into the interior of the hopper 1, the next milling and bran removal process can be carried out immediately and continuously by repeating the above operation. be.

As described above, according to the present invention, when rice milling is performed using a circulating rice milling machine, the adjustment of the milling resistance and the adjustment of the supply amount are linked, and the milling resistance is kept in an unloaded state during bran removal. It is possible to perform only the bran removal operation extremely efficiently while further increasing the amount of rice grains supplied, so you can adjust the amount of rice grains supplied and the grinding resistance by operating completely separate levers and dials, etc., as in the past. There is no need to do this, and it can be done very easily and in a well-balanced and optimal state by simply switching one shift lever. Problems such as the long time it takes or the generation of a lot of broken rice are solved all at once, and together with the simple structure of the device and the low production and modification costs, it is a cycle with completely ideal usage functions. This type of rice polishing machine can be provided.

[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 show the claw clutch provided on the support shaft on the resistance plate side and the shift lever in the engaged and disengaged states, respectively. Plan view shown, No. 5
7 to 7 are front views of main parts showing the interlocking state of the resistance plate and the shutter in accordance with the switching operation of the shift lever. 1...hopper, 2...cabinet, 3...
Sewing roll, 4... Seating chamber, 4a... Opening/closing lid, 5
...Blank removal net, 6...Rice grain falling port, 7...Shutter, 8...Rice grain circulation port, 9...Resistance plate, 10,1
1... Support shaft, 12... Arm rod, 13... Spring, 14... Pawl clutch, 14a... Jumper, 1
4b... Stator, 15... Concave groove, 16... Protrusion,
17... Bell crank, 17a, 17b... End of bell crank, 18... Connecting rod, 19... Shift lever, 20... Pin, 21... Auxiliary lever, 2
2... Guide hole.

Claims (1)

[Scope of Claims] 1. The shutter of the rice grain drop opening at the bottom of the hopper and the resistance plate of the rice grain circulation opening are interlocked with each other from the time of charging rice grains to the completion of polishing, so that the shutter can adjust the amount of rice grains supplied from zero to a predetermined value. The resistor plates are moved proportionally from zero to the position where the milling resistance reaches a predetermined strength, and then, during bran removal, only the shutter is moved to a position where the amount of rice grains supplied is further increased. , a method for adjusting the supply amount of rice grains and the milling resistance in a circulating rice mill, characterized in that the resistance plate is moved in a direction in which it returns to its initial no-load position. 2. A shutter is attached to the rice grain drop opening at the bottom of the hopper, and a resistance plate is fixed to a spindle at the rice grain circulation opening and pivoted so as to be swingable, and an arm rod that moves together with the shutter is fixed to one end of the spindle on the shutter side. A claw clutch is provided at one end of the support shaft on the resistance plate side, and is made up of a swinger that is always biased in the meshing direction by a spring, and a stator fixed to the support shaft, and a predetermined oscillation is provided on the outer periphery of the stator of the claw clutch. A bell crank that engages while idling at the movement angle is fitted, and a linking rod is provided that spans one end of the bell crank and the tip of the arm rod on the shutter side and connects the two so that they can interlock. Supply of rice grains in a circulating rice mill, characterized in that a shift lever is attached to the other end of the pawl clutch to move the idler of the pawl clutch in the axial direction, engage the stator, and rotate it in the circumferential direction. Adjustment device for amount and pumping resistance.