JPH0120996Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to a rice polishing device.

(Prior art) In the conventionally known Japanese Patent Application Laid-open No. 54-85955, six mounting surfaces are formed on the outer peripheral surface of a mounting vertical cylinder whose diameter is smaller toward the lower end, and a strip-shaped mounting surface is formed on the mounting surface, and a removable and replaceable strip-shaped mounting surface is formed on the outer peripheral surface of the mounting vertical cylinder. This document describes a grain polishing apparatus in which iron split roll pieces are attached to form an iron polishing trochanter, and the outer periphery of the iron polishing trochanter is concentrically surrounded by a polygonal bran removing cylinder.

(Problem to be solved by the invention) In the above-mentioned known example, an iron polishing trochanter is constructed by attaching removable and replaceable strip-shaped iron split roll pieces to the outer peripheral surface of a mounting vertical cylinder whose diameter is smaller toward the lower end. Since the outer periphery of the polishing trochanter is concentrically surrounded by a polygonal bran removing cylinder, the grains in the polishing chamber are simply rotated and agitated, functioning as a grain polishing device, but the bran layer on the surface It is insufficient for polishing rice to peel and remove. When using rice polishing equipment, the number of trochanters must be reduced to create an extreme pressure difference between when the rice is being polished and when the rice is not being polished, and the scrubbing action must be strong when polishing the rice.

(Means for Solving the Problem) Therefore, in the present invention, four mounting surfaces are formed on the outer peripheral surface of the mounting vertical cylinder 29 having the same diameter from the upper end to the lower end. The rice polishing trochanter 17 is constructed by attaching a circular arc piece 33 with a low height, and attaching a tall rectangular rice polishing roll piece 32 to both the front and rear mounting surfaces, and the outer periphery of the rice polishing trochanter 17 is a polygonal bran removing cylinder. 13, and a rubbing body 20 having vertical protrusions projecting into the polishing chamber 42 is attached to the inner surface of the corner of the polygonal bran removing cylinder 13.

(Example) An example of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a lower pedestal, and a rice polishing machine is mounted on the upper part of the pedestal 1. 2 is an outer case of the rice milling machine, 3 is a window formed on the side of the case 2, and 4 is an opening/closing lid attached to the window 3.

An annular projection 5 projecting inward is provided at the upper end of the case 2, and a supply tube 7 is inserted into the central opening 6 of the annular projection 5 from above.

Reference numeral 8 denotes a supply hopper fixed to the upper part of the annular projection 5. The supply cylinder 7 and the supply hopper 8 are formed separately, and the supply cylinder 7 has a structure that can freely move up and down.

9 is a shaft whose one end is fixed to the case 2 side,
The other end of the shaft 9 does not reach the supply cylinder 7. Reference numeral 10 denotes a shaft provided below the shaft 9, one end of which is fixed to the supply cylinder 7 side, and a rod 11 is pivotally attached between the shafts 9 and 10. Reference numeral 12 denotes a spring that pulls up the supply cylinder 7. A polygonal bran removal cylinder 13 is attached to the lower end of the supply cylinder 7. 1
4 is a discharge port, 15 is a rotating shaft, and 16 is a pulley attached to the rotating shaft 15.

FIG. 3 shows a cross section of the polygonal bran removing cylinder 13 and the rice polishing trochanter 17 provided therein.

The polygonal bran removing cylinder 13 is made of a thin iron plate with numerous bran removing holes 18 formed therein, and four pieces bent in a dogleg shape are combined to form one polygonal bran removing cylinder 13. 19
are four vertical columns installed on the front, rear, left and right sides, and on the inner surface thereof, a rubbing body 20 with vertical ridges for attaching the polygonal bran removing cylinder 13 and for rubbing the rice grains is attached with an appropriate fastener 44. .

Both left and right ends 21 of the rubbing body 20 protrude left and right beyond the vertical column 19, and the ends of the polygonal bran removal cylinder 13 are abutted thereon from many sides, and a presser 2 having a U-shaped cross section is attached.
2 is fitted from the outside of the vertical column 19 and fixed by tightening with a screw 23. Therefore, when the screw 23 is loosened, the presser 22 is removed and the polygonal bran removing cylinder 13 can be replaced.

A rubbing body 24 having the same shape as the rubbing body 20 is brought into contact with the inside of the center of the dogleg-shaped polygonal bran removing cylinder 13,
It is fixed from the outside with a stopper 25.

The rice milling trochanter 17 has a hollow pipe 26 at its center, the hollow pipe 26 is connected to the rotating shaft 15, and has a ventilation port 27. A gap 28 is provided on the outer periphery of the hollow pipe 26, and a mounting vertical cylinder 29 is provided outside the gap 28. On the outer periphery of the mounting vertical cylinder 29,
Four vertical slits 30 are provided at 90 degree intervals on the front, rear, left and right sides. Slits 30 and Slits 30
Since the space between them is the mounting surface, four mounting surfaces are formed on the outer circumferential surface of the vertical mounting cylinder 29 on the front, rear, left and right sides.

The vertical slits 30 are formed with or without a passage 31 communicating with the gap 28.

Among the four mounting surfaces of the vertical mounting cylinder 29, front, rear, left, and right, arcuate pieces 33 are brought into contact with the left and right sides, and fixed by roll pressers 34. A milled rice roll piece 32 having a trapezoidal cross section and twice the height of the arcuate piece 33 is brought into contact with the front and rear mounting surfaces, and is secured by a roll presser 34 . The inner side 35 of the roll presser 34 is formed in a shape to fit into the slit 30, and the outer side expands into a tapered shape to form a presser portion 36. 3
7 is a set screw for attaching the roll presser 34 to the mounting vertical cylinder 29. The outer circumferential surface 38 of the roll presser 34 and the outer circumferential surface 39 of the circular arc piece 33 are formed into circular arcs with the same radius, and the outer circumferential surface 40 of the rice milling roll piece 32 is
It protrudes far more than the outer circumferential surfaces 38 and 39.

Among the roll pressers 34, the roll presser 34 on the rotation rising side with respect to the polished rice roll piece 32 has a blowing hole 41.
Instead, a blowing hole 41 having a receding angle is formed only on the roll presser 34 on the lower side.

As shown in FIG. 2, the rice polishing trochanter 17 may be formed in a two-tiered structure, one above the other.

(effect) Next, we will discuss the effect.

When grains are supplied from the supply hopper 8, the grains flow into the milling chamber 42 through the interior of the supply cylinder 7.
Therefore, when the rotary shaft 15 is rotated by the motor via the pulley 16, the rice polishing trochanter 17 rotates to the left in FIG. At that time, the rice is polished by the grain-by-grain friction and sliding action, and when the rice grains flow out to the lower side of the rice milling roll piece 32, the ventilation opening 2
7. The rice bran is removed by the blast of air passing through the gap 28, the passage 31, and the jet nozzle 41, and the loose rice bran is discharged to the outside of the machine through the rice bran removing hole 18.

Thus, the rice milling roll piece 32 forms four mounting surfaces on the outer peripheral surface of the vertical mounting cylinder 29, front, rear, left and right, and a low-height arcuate piece 33 is attached to both the left and right mounting surfaces of the mounting surfaces. Since the structure is such that tall rectangular rice milling roll pieces 32 are attached to both mounting surfaces, when the rice milling trochanter 17 makes one revolution, it is compressed and rubbed by the rice milling roll pieces 32 at the two front and rear locations. Since the outer portions of the low-height arcuate pieces 33 on the left and right sides of the rice milling roll piece 32 that do not protrude are formed in a wide space, it is easy for rice grains to flow in from above, and the outer periphery of the rice milling trochanter 17 is Polygonal bran removal cylinder 13
Because of the structure in which the sliding body 20 with vertical protrusions protruding into the polishing chamber 42 is attached to the inner surface of the corner of the polygonal bran removal cylinder 13, a pressure difference is created and efficiency is increased. Rice can be polished well.

(Effects) In the conventionally known Japanese Patent Application Laid-Open No. 54-85955, six mounting surfaces are formed on the outer circumferential surface of a vertical mounting cylinder whose diameter is smaller toward the lower end, and on the mounting surfaces there is provided a strip-shaped mounting surface that is detachable and replaceable. A grain polishing device is described in which a certain iron split roll piece is attached to constitute an iron polishing trochanter, and the outer periphery of the iron polishing trochanter is concentrically surrounded by a polygonal bran removing cylinder.

In the known example, an iron polishing trochanter is constructed by attaching removably replaceable strip-shaped iron split roll pieces to the outer peripheral surface of a mounting vertical cylinder whose diameter is smaller toward the lower end, and the outer periphery of the iron polishing trochanter is covered with a polygonal bran remover. Since the grains in the polishing chamber are concentrically surrounded by cylinders, the grains in the polishing chamber are simply rotated and stirred, and although it functions as a grain polishing device, it is insufficient for polishing rice to peel off and remove the bran layer on the surface. It is. When using rice polishing equipment, the number of trochanters must be reduced to create an extreme pressure difference between when the rice is being polished and when the rice is not being polished, and the scrubbing action must be strong when polishing the rice.

However, in the present invention, four mounting surfaces are formed on the outer peripheral surface of the vertical mounting cylinder 29, which has the same diameter from the upper end to the lower end, and the arcuate pieces 33 of low height are mounted on both the left and right mounting surfaces. A rice polishing trochanter 17 is constructed by attaching a tall rectangular rice milling roll piece 32 to both the front and rear mounting surfaces, and the outer periphery of the rice milling trochanter 17 is concentrically surrounded by a polygonal bran removing cylinder 13. Since the rice polishing device is constructed by attaching a rubbing body 20 with vertical protrusions that protrudes into the polishing chamber 42 to the inner surface of the corner of the polygonal bran removing cylinder 13, the height of both the left and right mounting surfaces is low. There is an extreme pressure difference between the arcuate piece 33 and the tall strip-shaped rice milling roll piece 32 on both the front and rear mounting surfaces, so when the rice milling trochanter 17 makes one revolution, compression and release are repeated. Since the outer portions of the low-height arcuate pieces 33 on the left and right sides are formed into wide spaces, it is easy for rice grains to flow in from above. Further, the outer periphery of the rice polishing trochanter 17 is concentrically surrounded by a polygonal bran removing cylinder 13, and the inner surface of the corner of the polygonal bran removing cylinder 13 is provided with a rubbing body 20 having a vertical protrusion projecting into the polishing chamber 42. Because of the structure, rice can be milled efficiently with good rubbing.

[Brief explanation of the drawing]

Figure 1 is an overall vertical sectional side view, Figure 2 is a perspective view of the main parts, Figure 3 is a cross-sectional plan view of the main parts, Figure 4 is an exploded view of the vicinity of the sliding body, and Figure 5 is the set screw part. FIG. Explanation of symbols, 1... Frame, 2... Case, 3...
... window, 4 ... opening/closing lid, 5 ... annular projection, 6 ... center opening, 7 ... supply cylinder, 8 ... supply hopper,
9...axis, 10...axis, 11...rod, 12...
... Spring, 13 ... Polygonal bran removal cylinder, 14 ... Discharge port,
15... Rotating shaft, 16... Pulley, 17... Rice polishing trochanter, 18... Bran removal hole, 19... Vertical column, 20
...Sliding body, 21...Both left and right ends, 22...Press tool, 23...Screw, 24...Sliding body, 25...Stopper, 26...Hollow pipe, 27...Ventilating hole, 28
... Gap, 29 ... Mounting cylinder, 30 ... Slit, 31 ... Passage, 32 ... Rice polishing roll piece, 33
... Arc piece, 34 ... Roll presser, 35 ... Inside, 36 ... Roll presser, 37 ... Set screw, 38
...Outer peripheral surface, 39...Outer peripheral surface, 40...Outer peripheral surface,
41...Blowout port, 42...Refining chamber, 43...Inflow space, 44...Fixing device.

Claims (1)

[Scope of utility model registration request] Four mounting surfaces are formed on the outer peripheral surface of the mounting vertical cylinder 29, which has the same diameter from the upper end to the lower end.
is installed, and a tall rectangular rice polishing roll piece 32 is attached to both the front and rear mounting surfaces to form a rice polishing trochanter 17, and the outer periphery of the rice polishing trochanter 17 is concentrically surrounded by a polygonal bran removing cylinder 13. , a rice polishing device in which a rubbing body 20 having vertical protrusions projecting into the polishing chamber 42 is attached to the inner surface of the corner of the polygonal bran removing cylinder 13.