JPH0714490B2 - Lifting grain mill - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an ascending-type grain refiner.

(Prior Art) In the publicly known, Japanese Patent Publication No. 36-19981, a simple grinding type grain roll having no rotary spiral with respect to a vertically rotating main shaft is attached, and a concentric cylinder is provided around the grain roll. A grain refining chamber is formed between the grain refiner roll and the debran bran white barrel by being surrounded by the debran bran barrel, and a supply port is provided at a position above the debran bran barrel at a position below the bran bran barrel. In a flow-down type grain refiner that mills grains supplied to the upper part of the grain chambers having discharge ports formed therein while flowing down in the grain chambers, an inner surface of the bran removing white barrel has the grain rolls. Describes a down-flow type grain refiner equipped with a part of a helix capable of hitting the grain rotated by the grain roll to adjust the flow velocity.

(Problem to be Solved by the Invention) The known device is a flow-down type grain refining device, and the grain fed to the supply port at the upper position of the bran removal white barrel is milled while flowing into the grain mill chamber. Therefore, even if a guide piece is attached to the inner wall of the bran removal white polishing cylinder, the guide piece does not raise the grain until it is discharged from the upper supply port, but rather the degree of falling. Is only adjusted.

Thus, the conventionally known lifting type grain refiner is described in, for example, JP-A No. 2-119948, or JP-A No. 1-180253, or JP-A No. 1-180252. In addition, without exception, it has a structure in which a rotating spiral that can rotate to raise grains is provided with respect to the vertically rotating main shaft.

This type of structure with a rotating spiral that can rotate and raise the grain with respect to the vertically rotating main shaft is a method of rotating the spiral at high speed together with the grain rolling roll to raise the grain. Since it will pass by and it will be held down so that it will not rise with strong resistance, there is a problem that it will be an unreasonable load for grinding grinding that you do not want to apply strong resistance.

(Means for Solving the Problems) Therefore, according to the present invention, the mere grinding type grain refinement roll 2 which does not have a rotating spiral which can rotate with respect to the longitudinal rotation main shaft 1 to raise the grain is attached, and the grain refinement roll 2 The surroundings are surrounded by a concentric cylindrical bran removal white tube 3 to form a grain refining room between the grain refining roll 2 and the bran removal white tube 3, and the bran removal white tube 3
A rising type for refining the grains supplied to the lower part of the grain chamber in which the supply port 4 is formed in the lower position and the discharge port 6 is formed in the upper position of the bran removal whitening barrel 3 while raising the grain in the grain chamber. In the grain refiner, the inner surface of the bran removal white barrel 3 is raised from the lower edge of the bran removal white barrel 3 which is hit by the grain rotated by the grain roll 2 when the refined roll 2 rotates. This is an ascending-type grain refiner to which a single fixed spiral 12 which is continuous to the upper edge of the bran removal white polishing cylinder 3 is fixedly attached.

Further, the present invention provides the rising-type grain refining device in which the fixed spiral 12 is fixed only to the upper part of the bran removal and polishing white tube 3 in the raising-type grain refining device.

Further, the present invention is the lifting type grain refining device in which the supply port 4 is provided with a grain raising air blowing nozzle 10 in the feeding type grain refining device.

(Embodiment) A first embodiment of the present invention is shown in FIGS. 1 and 2, and a second embodiment is shown in FIG.

In FIG. 1, 1 is a vertically rotating main shaft, 2 is a vertically cylindrical grinding type grain refiner roll fixed to the vertically rotating main shaft 1, and a grain raising spiral for raising grains is not attached. 3 is a grinding-type grain roll 2
Is a cylindrical rice bran polishing tube that concentrically surrounds the outer periphery of
A supply port 4 is opened at a position on the lower side surface of the bran removal white polishing pipe 3, and a hopper 5 is attached to the supply port 4. An upper end of the bran removal white polishing pipe 3 is opened to serve as a discharge port 6, and a resistance control valve 8 is provided at the discharge port 7. Reference numeral 9 is a pulley, 10 is an air blowing port for assisting the raising of grain, and 11 is a bran suction port.

A fixed spiral 12 is provided on the inner surface of the bran removal white polishing cylinder 3 for raising the grain by the rotation of the grinding type fine grain roll 2.
12 is a length which starts from the lower edge of the bran removal white tube 3 and reaches the upper edge of the bran removal white tube 3. The fixed spiral 12 is
It may be formed by winding a wire-like material into a coil, or may be formed by indenting the bran removal white polishing tube 3 as shown in FIG.

In this way, the grain that is rotated by the rotation of the grinding grain roll 2 comes into contact with the fixed spiral 12 to be guided and rise, and rise smoothly even without the retransfer grain spiral.

FIG. 3 shows the second embodiment, in which 13 is a floor, 14 is a single frame installed on the floor 13, and 15 is a frame that constitutes the frame 14. The frame 14 is formed of a thin iron plate in a box shape. A horizontal partition 16 is provided at a lower position in the frame 14, a transmission chamber 17 is formed under the horizontal partition 16, and a vertical cylinder 18 is placed at the center of the upper part of the horizontal partition 16, and a vertical cylinder is installed. 18 is a screw 19 on the horizontal partition 16
Fixed by. At the upper end of the vertical cylinder 18, a collar-shaped support 20
The hollow vertical rotation main shaft 1 is mounted in the vertical cylinder 18 via the bearings 21, 21. 22 is a blowing room, 23 is a blowing cylinder, 24
Is a blow hole.

Further, a friction-type grain roll 25 is attached to the vertically rotating main shaft 1, a downward feed grain feed roll 26 is attached above the friction grain grain roll 25, and a feed roll 27 is provided at the lower end of the friction grain grain roll 25. The white rice discharge port is located at a part facing the delivery roll 27.
Forming 28. The circumference of the friction-type grain milling roll 25 is surrounded by a rice bran net 29, a frictional rice polishing chamber A is formed between the friction-type grain milling roll 25 and the rice milling net 29, and the outer circumference of the lower feeding grain feeding roll 26 is a grain feeding cylinder 30.
Surround with. Reference numeral 31 denotes a vertical inner cylinder provided on the outside of the sprue net 29 and the grain transfer cylinder 30, and the lower end of the vertical inner cylinder 31 is placed on the support 20 and fastened with screws 32. The upper end of the grain transfer cylinder 30 is enlarged in a taper shape, and a hopper-shaped cap 33 is placed and fixed on the upper end thereof.

The outer circumference of the vertical inner cylinder 31 is cylindrical, and the bearing 34 is fitted on the outer circumference, and the rotating outer cylinder 35 is fitted on the outer circumference of the bearing 34.
A grinding pulley 36 is formed at the lower end of the, and a belt is wound around the grinding pulley 36 to rotate the rotating outer cylinder 35. Rotating outer cylinder
A grinding type grain roll 2 is attached to the outer circumference of 35. The grinding type grain refinement roll 2 is formed by polymerizing a plurality of annular grinding wheels 37. Reference numeral 38 is a holding plate for the grinding-type fine grain roll 2. The outer periphery of the grinding-type grain-refining roll 2 is surrounded by a bran-removing white barrel 3. The space between the grinding wheel 37 and the bran removal grain polishing cylinder 3 becomes a grinding type grain refining chamber B, and the fixed spiral 12 is attached to the inner surface of the bran removal grain polishing barrel 3 and the grinding type grain refining chamber B is installed.
The discharge port 6 is formed at the upper end of the.

A hopper 5 is attached to the outside of the lower part of the bran removal white barrel 3. 39
Is a connecting tube formed on the upper part of the bran removing white tube 3, 40 is a resistance lid, 41 is a bran discharge chamber, 42 is a bran discharge chamber, and 43 is a resistance lid.

(Operation) Next, the operation will be described.

In FIG. 1, when the pulley 9 is rotated by the motor, the vertical rotation main shaft 1 is rotated by the pulley 9 to rotate the grinding grain roll 2. Next, the suction device is rotated so that suction is made through the bran suction port 11.

In this state, when brown rice is supplied from the hopper 5 to the lower portion of the grinding grain chamber B, the supplied brown rice rotates in the grinding grain chamber B as the grinding grain roll 2 rotating at high speed rotates. Although a rotating spiral for raising as in the known example is not provided, a single rod extending from the lower edge of the bran removal white tube 3 provided on the inner surface of the bran removal white tube 3 to the upper edge of the bran removal white tube 3 is provided. It is guided by contacting the continuous fixed spiral 12 and gradually grinds the grain grinding chamber B.
It rises in the inside, is ground and refined, and is discharged from the upper discharge port 6.

Grains during this period are not raised by rotating a spiral as in a known example, and therefore the grains can be smoothly raised and the rice can be polished smoothly by adjusting the resistance control valve 8 of the discharge port 6 at the upper portion. Further, since the grain rising air blowing nozzle 10 is exposed to the supply port 4, when air is blown from the air blowing nozzle 10, it can be surely raised.

Next, the embodiment of FIG. 3 will be explained. When the pulleys 9 and 36 are rotated by the motor, the vertical rotation main shaft 1 is rotated by the pulley 9 to rotate the friction type grain refinement roll 25 and the downward feed grain transfer roll 26. Then, the grinding type fine grain roll 2 is rotated by the pulley 36.

When brown rice is supplied from the hopper 5 in this state, the supplied brown rice is rotated in the grinding type grain polishing chamber B as the grinding type grain rolling roll 2 rotating at high speed is rotated, and the bran is removed. One continuous fixed spiral that extends from the lower edge of the bran removal white pipe 3 provided on the inner surface of the white polishing pipe 3 to the upper edge of the bran removal white pipe 3
12 is guided by contacting with 12 and gradually rises in the grinding type grain refining chamber B to be ground and refined and discharged from the upper discharge port 6,
It flows into the cap 33 through 39.

Then, it is lowered by the downward feed grain feeding roll 26, receives the finishing friction polishing by the friction type grain rolling roll 25, is fed to the white rice discharge port 28 from the feeding roll 27, and is taken out as finished rice.

(Effect) Since the conventionally known flow-down type grain refiner is for graining while flowing down the grain supplied to the supply port formed at the upper position of the bran-removing white barrel, the grain-removing white barrel has an inner wall. Even if the guide piece is attached, the guide piece does not raise the grain until it is discharged from the upper supply port, but merely adjusts the flow rate so that it may slow down the flow. Therefore, conventionally known lifting type grain refining apparatus, for example, as described in JP-A-2-119948, JP-A-1-180253 or JP-A-1-180252, without exception, without exception, It is a structure with a rotating spiral that can rotate to raise the grain. As described above, in the structure in which the longitudinally rotating main shaft is provided with the rotating spiral, the grain is raised too much, and thus there is a problem that the grain is discharged without being polished.

However, according to the present invention, a mere grinding-type grain rolling roll 2 which does not have a rotating spiral capable of rotating the vertically rotating main shaft 1 to raise grain is attached, and a concentric cylinder is removed around the grain rolling roll 2. It is surrounded by a bran polishing white tube 3 to form a grain refining chamber between the grain refining roll 2 and the bran removal white barrel 3, and a supply port 4 is provided at a position below the bran polishing white tube 3. In the ascending grain refiner for graining grains supplied to the lower portion of the grain chamber, each of which has a discharge port 6 formed at a position above 3, inside the grain removing bran white barrel 3 In addition, when the refined grain roll 2 rotates, the grain rotated by the refined grain roll 2 hits and rises, from the lower edge of the bran removal white pipe 3 to the upper edge of the bran removal white pipe 3. Is it a lifting type grain refining device to which one fixed spiral 12 is fixedly attached? As in the known example, the method of rotating the rotating spiral together with the grinding-type milling roll at a high speed to raise the grain, rather than rotating the grinding-type grain rolling roll 2 that rotates at a high speed, This is a method in which the grain is brought into contact with and guided to the fixed spiral 12 provided on the inner surface of the bran removal and polishing unit 3 to raise the grain, so that the raising is performed gently and softly, so that the milled rice can be performed without unevenness. Further, since the fixed spiral 12 is one continuous structure that extends from the lower edge of the bran removal white tube 3 to the upper edge of the bran removal white tube 3, it rises seamlessly and is one continuous structure. It is inexpensive and easy to manufacture.

Further, according to the present invention, in the lifting type grain refining device, the fixing spiral 12 is a rising type grain refining device in which only an upper portion of the fixing spiral 12 is fixed to the bran removing and polishing white tube 3, so that the mounting is easy. .

Further, according to the present invention, in the lifting type grain refining apparatus, since the grain rising air blowing nozzle 10 is faced to the supply port 4, the lifting type grain refining apparatus can be surely raised.

[Brief description of drawings]

FIG. 1 is an overall vertical side view of the basic structure, FIG. 2 is another embodiment diagram, and FIG. 3 is a concrete embodiment diagram. Explanation of reference numerals 1 ... Longitudinal rotation spindle, 2 ... Grinding type grain roll, 3 ... Bran for removing bran, 4 ... Supply port, 5 ... Hopper, 6 ... Discharge port, 7 ... Discharge port, 8 ... Resistance control valve, 9 ... Pulley, 10 ... Air inlet, 11 ... Bran suction port, 12 ... Fixed spiral, 13 ... Floor, 14 ... Frame, 15 ... Bone frame, 16 ... … Horizontal partition, 17 …… Transmission chamber, 18 …… Vertical cylinder, 19 …… Screw, 20
…… Bill-shaped support, 21 …… Bearing, 22 …… Blowing chamber, 23 ……
Blowing cylinder, 24 ... Blowing hole, 25 ... Friction type grain roll, 26 ...
… Grain feeding roll, 27 …… Feeding roll, 28 …… White rice discharge port, 29 …… Bran removing cylinder, 30 …… Grain feeding cylinder, 31 …… Vertical inner cylinder, 32…
… Screws, 33… Hopper-shaped caps, 34… Bearings, 35
...... Rotating outer cylinder, 36 …… Grinding pulley, 37 …… Round grinding wheel, 38 …… Presser plate, 39 …… Communication cylinder, 40 …… Resistance lid, 41…
... Bran discharge chamber, 42 ... Bran discharge chamber, 43 ... Resistance lid, A ... Friction rice polishing room, B ... Grinding type grain polishing room.

Claims (3)

[Claims] 1. A braided grain-type milling roll 2 which does not have a rotating spiral capable of rotating a vertically rotating main shaft 1 to raise grains and having a cylindrical concentric bran around the graining roll 2. A grain refinement chamber is formed between the grain refinement roll 2 and the bran removal grain polishing barrel 3 by being surrounded by a grain polishing barrel 3, and a supply port 4 is provided at a lower position of the grain removal grain polishing barrel 3 In the rising-type grain refiner for grain-mixing grains supplied to the lower portion of the grain-growing chamber, each of which has discharge ports 6 formed above, inside the grain-removing white barrel 3 Is continuous from the lower edge of the rice bran polishing white tube 3 to the upper edge of the rice bran polishing white tube 3 where the grain rotated by the grain polishing roller 2 hits and rises when the grain polishing roller 2 rotates. Lifting type grain refining device with one fixed spiral 12 fixedly attached. 2. The ascending-type grain refiner according to claim 1, wherein only the upper portion of the fixed spiral 12 is fixed to the bran removing and polishing unit 3. 3. The lifting type grain refiner according to claim 1, wherein the supply port 4 is provided with a grain rising air blowing nozzle 10.