JPH0139819B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a Kongo grinding type rice polishing roll.

(Prior Art) Conventional Kongo grinding rice polishing rolls are formed in the shape of a hollow truncated cone A as shown in Fig. 1, or the upper part is bead-shaped and the lower part is in the shape of a bead as shown in Fig. 2. is formed into a cylindrical shape, and in both cases it is formed into a hollow pipe shape.

(Problem to be solved by the invention) Therefore, manufacturing this Kongo grinding rice milling roll is quite troublesome and can only be produced at a factory with specialized equipment, and cannot be manufactured at a non-specialized factory. (There are only a few manufacturers of Kongo grinding rice milling rolls.)

Further, if a part of the Kongo grinding rice milling roll is damaged, it cannot be repaired, so the entire roll must be disposed of.

Further, the disadvantage of the Kongo grinding type rice milling roll is that it is expensive because it is manufactured with a lot of labor and effort as described above.

The present invention aims to overcome the deficiencies of the known examples described above.

Furthermore, the present invention makes it possible to obtain a diamond-grinding rice milling roll that is significantly cheaper than conventional rolls.

Furthermore, the present invention enables formation by a much simpler method than conventional methods.

(Means for Solving the Problems) The present invention provides a Kongo grinding type rice polishing roll in which a plurality of rod-shaped Kongo grinding bodies 26 are attached in parallel in the generatrix direction on the outer surface of a rotating body 4 that rotates on a vertical axis. This is what I did.

(Example) To explain with the drawings, reference numeral 1 denotes a vertical grain feeding spiral, and double spirals 3 and 3' are integrally formed on the outer circumferential surface of a metal cylindrical portion 2 in a bulging manner. The grain feeding spiral 1 is formed of metal casting and is formed separately from a rotating body 4, which will be described later, and the grain feeding spiral 1 and the rotating body 4 are connected at a joint with a pin or the like.

The cross section of the rotating body 4 has a cylindrical portion 5 on the inside,
Several flat mounting surfaces 6 are formed on the outside. The mounting surfaces 6 in this embodiment are formed on both the front and rear surfaces and the left and right surfaces, and have a square rod shape, and the corner portions 7 have square grooves 8 formed toward the center.

The square groove 8 is formed in the shape of a slit over the entire top and bottom of the corner 7 of the rotating body 4, and a roll presser 9 is provided to fit into the square groove 8.

The roll presser 9 has a structure that fits snugly into the square groove 8 from the outside, and its inner surface 10 fits into the groove bottom 11 of the square groove 8 with a slight gap formed therein.

When the roll presser 9 is fitted into the square groove 8, its outer surface side 12 protrudes above the square groove 8, and the outer surface side 1
2 forms a presser portion 13 that tapers outward and opens outward.

Screw holes 14 are provided at both upper and lower ends of the groove bottom 11 of the square groove 8.
14, and through holes 15, 15 are formed at the upper and lower ends of the roll presser 9 at positions corresponding to the screw holes 14. Reference numeral 16 denotes a set screw, which is screwed into the screw hole 14 after passing through the through hole 15. This fixes the roll presser 9 within the square groove 8. At this time, inner surface 1
0 and the groove bottom 11 has the effect of reliably tightening the set screw 16.

A communication port 18 communicating with the center portion 17 of the rotating body 4 is formed at an intermediate position between the screw holes 14, 14 of the square groove 8. The communication port 18 is formed closer to the bottom.

The roll presser 9 is formed with an air jet port 19 at a position corresponding to the communication port 18.

A rotating shaft 20 made of a hollow pipe is fitted inside the rotating body 4. The inner part of the screw hole 14 becomes a cylindrical part 21 that protrudes inward, and the inner surface 2 of the cylindrical part 21
2 has a structure that tightly contacts the outer surface 23 of the rotating shaft 20 (a slight gap may be formed between the outer surface 23 and the inner surface 22).

A plurality of through holes 24 are formed in the rotating shaft 20, and the inside of the rotating shaft 20 serves as a ventilation passage 25, which is connected to a blower. In other words, the wind passing through the ventilation passage 25 flows through the through hole 24.
After being blown out, the air passes between the rotating shaft 20 and the rotating body 4, is blown out from the communication port 18, and is further blown out from the jet port 19.

The roll presser 9 fits into all the square grooves 8, 8, and holds the bar-shaped diamond grinding body 26 between the presser portions 13 facing each other.

The left and right sides 27 of the Kongo grinding body 26 are the presser portions 1
The width increases toward the inner end (bottom surface) so that it is sandwiched between the two. Inner surface (bottom surface) 28 of Kongo grinding body 26
has a structure that is in close contact with the mounting surface 6, and the manufacturing order is to bring the diamond grinding body 26 into contact with each mounting surface 6, then fit the roll presser 9 to hold it down, and fix it with the set screw 16. .

(effect) Next, we will discuss the effect.

Since the Kongo grinding rice milling roll of the present invention has the above-described configuration, first, the rotating body 4 is fitted on the outer periphery of the rotating shaft 20, and the grain feeding spiral 1 is fitted thereon, and the grain feeding spiral 1 and the rotating body 4 are connected to each other. A clutch is connected at the joint,
Kongo grinding bodies 26 are mounted on the front, rear, left and right mounting surfaces 6 of the rotating body 4.
The roll presser 9 is placed in contact with the inner surface 28 of the
When the roll presser 9 is inserted into the square groove 8, the presser portions 13, 13 on both sides of the roll presser 9 engage with the left and right sides 27 of the diamond grinding body 26.

In this state, when the through hole 15 and the screw hole 14 are aligned and the set screw 16 is inserted into the through hole 15 and screwed, the Kongo grinding body 26 is easily stopped on the outer periphery of the rotating body 4 and the Kongo grinding type rice polishing roll can be obtained.

Therefore, if one of the Kongo grinding bodies 26 is damaged during rice polishing, all you need to do is loosen the set screw 16 and replace only that. There is no need to replace the other Kongo grinding bodies 26. do not have.

During rice milling, the air emitted from the blower passes through the ventilation passage 25, passes through the through hole 24 between the outer surface 23 and the cylindrical part 5, and blows through the communication port 18 to the blowing port 19.

(Effects) Manufacturing conventional rice milling rolls of the Kongo grinding type is quite troublesome and can only be produced at a factory with specialized equipment, and cannot be manufactured at a non-specialized factory.

Further, if a part of the Kongo grinding rice milling roll is damaged, it cannot be repaired, so the entire roll must be disposed of.

Further, the disadvantage of the Kongo grinding type rice milling roll is that it is expensive because it is manufactured with a lot of labor and effort as described above.

However, the present invention is a Kongo grinding type rice polishing roll in which a plurality of rod-shaped Kongo grinding bodies 26 are attached in parallel in the generatrix direction to the outer surface of a rotating body 4 rotating on a vertical axis by any means. Since the body is rod-shaped and not a hollow cylindrical shape like the conventional one, it is easy to form a mold for fired casting, and it can be easily manufactured anywhere where diamond grindstones can be manufactured, and the cost is extremely low.

The Kongo grinding body 26 can be used to polish various types of rice depending on its grain size, so in the past, the grain size was specified when ordering, but with the present invention, since the Kongo grinding body 26 is replaceable, it is not necessary to specify the grain size. do not have.

Also, if a part is damaged, only that part needs to be replaced, which is advantageous.

Furthermore, since it is attached using a rod-shaped roll presser 9, it is easy to attach.

[Brief explanation of drawings]

Figures 1 and 2 are known examples, Figure 3 is a perspective view of the overall appearance, Figure 4 is an exploded view, Figure 5 is a sectional view, Figure 6 is a sectional view, and Figure 7 is a sectional view. FIG. 5 is an exploded view of FIG. 5; Explanation of symbols, 1... Grain feeding spiral, 2... Metal cylindrical part, 3, 3'... Double spiral, 4... Mounting part, 5...
... Cylindrical part, 6 ... Mounting surface, 7 ... Corner part, 8 ... Square groove, 9 ... Roll presser, 10 ... Inner surface, 11 ...
Groove bottom, 12... Outer surface side, 13... Holding part, 14...
...Screw hole, 15...Through hole, 16...Set screw,
17... Center, 18... Communication port, 19... Blower port, 20... Rotating shaft, 21... Cylindrical portion, 22... Inner surface, 23... Outer surface, 24... Through hole, 25... Ventilation Road, 26... Kongo grinding body, 27... Both left and right sides, 2
8...Inner side.

Claims (1)

[Claims] 1. A diamond grinding type rice polishing roll in which a plurality of rod-shaped diamond grinding bodies 26 are attached in parallel in the generatrix direction on the outer surface of a rotating body 4 rotating on a vertical axis by any means.