JP2552563B2 - Grain refiner - Google Patents

Description

TECHNICAL FIELD The present invention relates to a grain refiner.

(Prior Art) In the publicly known Japanese Patent Publication Nos. Sho 32-8660 and Sho 33-64, techniques for grinding (polishing) and then polishing (friction) are described.

The above-mentioned machines are classified into a grinding machine and a friction machine, but a machine having a uniaxial shape is also described in JP-B-47-652 and is known.

(Problems to be Solved by the Invention) The former has a complicated structure because the grinding polishing machine and the friction polishing machine are separate from each other. The latter has a simple structure because it has a uniaxial shape, but since the horizontal axis shows grains are distributed only in the lower part, fluffing is inevitable. Further, the grinding speed and the friction grinding speed are different from each other even though the rotation speeds thereof are totally different from each other.

However, it is possible to obtain a grinding and friction polishing device with a small structure even if the vertical axis is distributed evenly around the entire circumference.

(Object of the invention) Accordingly, the present invention is intended to prevent porphyritism on the vertical axis and to reduce the size of the vertices so that the refinement according to the purpose of refined grains can be achieved.

(Means for Solving the Problem) Therefore, the present invention is concentric with the friction and polishing chamber A formed around the friction rotation grain mill roll 15 fixed to the vertical rotation main shaft 10 and the outer peripheral portion of the vertical rotation main shaft 10. The grinding and polishing chamber B formed around the grinding rotary grain refiner roll 27 fixed to the outer periphery of the rotary cylinder 28 provided, and the upper position where the grinding and polishing chamber B is ground and refined in the grinding and polishing chamber B to flow into the friction and polishing chamber A. The contact valve 41 is provided, and a resistance valve 42 is provided at the outlet of the grinding and polishing chamber B and a resistance valve 42 is provided at the outlet of the friction and polishing chamber A.
51, each of which is provided with a grain refining device and the grinding and polishing chamber B
The outlet is of an annular shape, and the resistance valve 42 is also an annular shape, and the resistance valve 42 of the grinding and polishing chamber B is a refinement apparatus urged downward by spring elasticity.

(Example) The structure of the present invention will be described by way of an example. 1 is a floor, 2 is a frame installed on the floor 1, and 3 is a frame that constitutes the frame 2. The frame 2 is formed of a thin iron plate in a box shape.

A horizontal partition 4 is provided at a lower position in the frame 2, and a transmission chamber 5 is formed under the horizontal partition 4. A vertical through hole 40 is formed at the center of the horizontal partition 4, and the through hole 40 of the horizontal partition 4 is formed.
A vertical axis cylinder 6 is placed at the center of the upper part of the and is fixed to the horizontal partition base 4 with screws 7.

A collar-shaped support base 8 is formed at the upper end of the vertical cylinder 6. A hollow vertical rotation main shaft 10 is provided in the vertical cylinder 6 via bearings 9 and 9.
Axis.

Reference numeral 11 is a blow chamber formed between the vertical rotation main shaft 10 and the vertical cylinder 6, 12 is a blow cylinder attached to the outer periphery of the vertical cylinder 6, and 13 is a blow hole formed in the vertical rotary shaft 10.

The lower end of the vertically rotating main shaft 10 protrudes below the horizontal partition 4 to fix the passive pulley 14. The upper end of the vertically rotating main shaft 10 protrudes upward from the support base 8, and the friction rotating grain roll 15 is fitted and mounted from above, and the lower feed grain roll 16 is provided above it.
Install from above by fitting. A feeding roll 17 is integrally or separately provided at the lower end of the friction-rotating grain mill roll 15, and a white rice discharge port 18 is formed at a position facing the feeding roll 17.
A resistance valve 51 is provided at the white rice discharge port 18.

The periphery of the friction-rotating grain mill roll 15 is surrounded by the friction-milling net 19, and a friction-polishing chamber A is formed between the friction-rotating grain roll 15 and the friction-milling net 19. The periphery of the downward feeding grain feeding roll 16 is surrounded by the downward feeding grain feeding cylinder 20.

Reference numeral 21 denotes a vertical inner cylinder provided on the outside of the rubbing sprout net 19 and the lower feeding and feeding cylinder 20. The vertical inner cylinder 21 is inserted into the frame 2 from above, and the lower end of the vertical inner cylinder 21 is brought into contact with the support base 8 and screw 22 Is fixed to the support base 8.

The friction net 19 is fitted into the vertical inner cylinder 21 from above,
After that, the lower feed cylinder 20 is fitted from above. The lower end of the friction-extracting net 19 is engaged with the step portion of the vertical inner cylinder 21 to be stopped, and the upper end of the friction-extracting net 19 is stopped at the lower portion of the lower feeding and feeding cylinder 20. The lower feed cylinder 20 can be fixed to the vertical inner cylinder 21 by an arbitrary fastener.

The upper half of the lower feeding and feeding cylinder 20 is enlarged in a taper shape to facilitate grain inflow, and a hopper-like cap is provided on the upper end thereof.
Place and fix 23.

The outer circumference of the vertical inner cylinder 21 is cylindrical, the bearings 24, 24 are fitted to the outer circumference thereof, and the frying helix 25 is fitted to the outer circumference of the bearings 24, 24. A passive pulley 26 is integrally formed at the lower end of the fried helix 25 (may be fixed separately), and a belt is wound around the passive pulley 26 to rotate the fried helix 25 at high speed.

At the upper end of the fried helix 25, a rotary cylinder 28 having a diameter slightly smaller than that of the fried helix 25 is integrally provided (may be fixed separately). The upper end of the rotary cylinder 28 is substantially at the same height as the upper end of the vertical inner cylinder 21, and the rotary grinding grain roll 27 is attached to the outer circumference of the rotary cylinder 28. The rotary grinding grain roll 27 is formed by polymerizing a plurality of annular grinding wheels.

The outer circumference of the grinding rotary fine grain roll 27 is made to have an outer diameter substantially the same as that of the fried helix 25. Therefore, the rotary cylinder 28 of the fried helix 25 in which the grinding rotary fine grain roll 27 is fitted is made slightly smaller in diameter. Reference numeral 29 is a holding plate that prevents the rotary grinding grain roll 27 from coming off.

The outer periphery of the fried grain spiral 25 is surrounded by the vertical fried grain outer cylinder 30, and the outer periphery of the grinding rotary refined grain roll 27 is surrounded by the ground mortar 31. A space between the grinding rotary fine grain roll 27 and the fine grinding grain net 31 is a fine grain grinding room B.

A supply port 32 is provided in the lower portion of the vertical grain outer cylinder 30, and a supply gutter 33 is attached to the supply port 32. 34 is a connection tube formed on the upper part of the grinding and polishing net 31, 35 is a bran discharge chamber, 36 is a suction tube, 37 is a bran discharge chamber, 38 is a suction tube, 39 is a discharge gutter, and 41 is a communication chamber.

An upper lid 43 is provided above the communication chamber 41, a vertical cylinder 44 is provided at the center of the upper lid 43, and an adjusting handle 45 is screwed into the vertical cylinder 44.
A vertical hole 46 is formed at the center of the adjustment handle 45, and the vertical bar 47 is inserted into the vertical hole 46. Fix the collar 48 to the lower end of the upper and lower bars 47,
A spring 49 is interposed between the collar 48 and the adjusting handle 45. Tsuba 48
The upper end of the arm 50 is fixed to the
Fix at 42.

(Operation of Example) Next, a method of use will be described.

Vertical rotation spindle by rotating the passive pulley 14 by the motor
10 is rotated, and the friction rotation grain refinement roll 15 and the lower feed grain rotation roll 16 are rotated at the number of rotations suitable for friction rotation. Further, the passive pulley 26 is rotated by the motor to rotate the fried helix 25 and the grinding rotary fine grain roll 27 at a rotation speed suitable for the grinding rotation.

Next, the suction machines attached to the suction cylinder 36 and the suction cylinder 38 are rotated, respectively, and the wind blown from the friction rotary grain roll 15 through the blow cylinder 12, the blow chamber 11 and the blow hole 13 is sucked into the suction cylinder 38. More suction, and the suction pipe inside the bran discharge chamber 35
Aspirate from 36.

In this state, when brown rice is supplied from the supply gutter 33, the brown rice is raised by the fried helix 25 that rotates in the optimum state,
The surface is initially ground and polished by the grinding rotary fine grain roll 27,
The brown rice with the scratched surface is stored in the communication chamber 41 in the communication cylinder 34.

In this case, the degree of initial grinding is adjusted by the adjusting handle 45 screwed to the vertical cylinder 44 provided on the upper lid 43. That is, when the adjusting handle 45 is rotated, the strength of the spring 49 between the collar 48 and the adjusting handle 45 is adjusted, so that the resistance of the resistance valve 42 is adjusted.

The brown rice that has undergone the initial grinding and polishing flows into the cap 23 and is lowered by the downward feed grain transfer roll 16. The downward movement by the downward feed grain feeding roll 16 is also performed in an appropriate state, and the friction grain rotating roll 15 receives finishing friction, and is fed from the feeding roll 17 to the white rice discharge port 18 and taken out as finished rice. . The degree of finishing friction is 51
Is adjusted by

(Effects) In the publicly known Japanese Patent Publication Nos. Sho 32-8660 and Sho 33-64, there is described a technique of polishing and then adding water (friction). The above-mentioned machines are classified into a grinding machine and a friction machine, but a machine having a uniaxial shape is also described in JP-B-47-652 and is known.

However, the former has a complicated structure because the grinding polishing machine and the friction polishing machine are separate from each other. The latter has a simple structure because it has a uniaxial shape, but since the horizontal axis shows grains are distributed only in the lower part, fluffing is inevitable. Further, the grinding speed and the friction grinding speed are different from each other even though the rotation speeds thereof are totally different from each other.

However, according to the present invention, the friction and polishing chamber A formed around the friction rotation grain mill roll 15 fixed to the vertical rotation main shaft 10 and the outer periphery of the rotary cylinder 28 concentrically provided on the outer peripheral portion of the vertical rotation main shaft 10 are fixed. A grinding and polishing chamber B formed around the grinding and rotating grain milling roll 27, and a communication chamber 41 provided at an upper position where the grinding and polishing chamber B is ground and refined to flow into the friction and polishing chamber A. In the above, since the resistance valve 42 is provided at the outlet portion of the grinding and polishing chamber B and the resistance valve 51 is provided at the outlet portion of the friction and polishing chamber A, the grain refining devices are provided, respectively, so that the grinding and friction polishing are respectively suitable rotations. You can do it with a number, or with a suitable resistance.

Further, since the outlet of the grinding and polishing chamber B has a ring shape and the resistance valve 42 has a ring shape as well, the grain refining device is prevented, and the communication becomes smooth.

Further, since the resistance valve 42 of the grinding and polishing chamber B is a grain refiner urged downward by spring elasticity, it is easy to manufacture.

[Brief description of drawings]

FIG. 1 is an overall vertical side view, FIG. 2 is an internal side view, FIG. 3 is a partially cutaway side view of a cap, FIG. 4 is a partially cutaway side view of a grinding rotary grain roll, and FIG. Partially broken side view of the grain spiral, FIG. 6 is a partially broken side view of the resistance portion, FIG. 7 is a partially broken side view of the grain transfer cylinder, and FIG. 8 is a partially broken side view of the vertical inner cylinder. FIG. 9 is a side view of the lumber sprouts. Explanation of symbols 1 ... Floor, 2 ... Frame, 3 ... Bone frame, 4 ... Horizontal partition, 5 ...
Transmission chamber, 6 ... Shaft cylinder, 7 ... Screw, 8 ... Support base, 9 ... Bearing,
10 ... Longitudinal rotation spindle, 11 ... Blow chamber, 12 ... Blow tube, 13 ... Blow hole, 14 ... Passive pulley, 15 ... Friction rotary grain roll, 16 ... Downward feed grain roll, 17 ... Feed roll, 18 ... White rice discharge port, 19… rubbing sprout net, 20… downward feeding cylinder, 21… vertical inner cylinder, 22… screw, 23… cap, 24… bearing, 25… lifting spiral, 26… passive pulley, 27… grinding Rotating grain roll, 28 ...
Upper end, 29 ... Presser plate, 30 ... Fried outer cylinder, 31 ... Grinding spruce net,
32 ... Brown rice supply port, 33 ... Supply gutter, 34 ... Communication tube, 35 ... Bran discharge chamber, 36 ... Suction tube, 37 ... Bran discharge chamber, 38 ... Suction tube, 39 ... Discharge gutter, 40 ... Through hole, 41 ... Contact room, 42 ... Resistance valve, 43 ... Top lid, 44
… Vertical cylinder, 45… Adjusting handle, 46… Vertical hole, 47… Vertical bar, 48
... Tsuba, 49 ... Spring, 50 ... Arm, 51 ... Resistance valve, A ... Friction grinding chamber, B ... Grinding grinding chamber.

Claims (3)

(57) [Claims] 1. A friction grinding chamber A formed around a friction rotation grain roll 15 fixed to a vertical rotation spindle 10, and the vertical rotation spindle.
Grinding and polishing chamber B formed around a grinding rotary grain refiner roll 27 fixed to the outer circumference of a rotary cylinder 28 which is concentrically provided on the outer circumference of 10
And a communication chamber 41 provided at an upper position where the grinding and polishing is performed in the grinding and polishing chamber B to move up and flow into the friction and polishing chamber A.
And a resistance valve 42 at the outlet of the grinding and polishing chamber B and a resistance valve 51 at the outlet of the friction and polishing chamber A. 2. The grain refiner according to claim (1), wherein the outlet of the grinding and polishing chamber B is annular and the resistance valve 42 is also annular. 3. A grain refiner according to claim (1), wherein the resistance valve 42 of the grinding and polishing chamber B is urged downward by spring elasticity.