JPH05123590A - Discharge device of upright cereal grain cleaning machine - Google Patents

Abstract

PURPOSE:To allow no accumulation of polished cereal grains by giving resistance to hoisted cereal grains right from overhead to make it an ideal inner resistance and, at the same time, allowing polished cereal grains to be discharged rapidly. CONSTITUTION:A resistance plate 33 is provided at a discharge orifice 24 and a receiving trough 22 with a lower ring-like transport surface than the discharge orifice 24 is installed on the top circumference of a discharge cylinder 5. At the same time, a scraping blade 30 which rotates along the transport surface and a cereal grain chute hole 46 are provided on the transport surface. In addition, a discharge trough 47 connected to the chute hole 46 is installed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical grain mill that feeds grains from below, raises them while whitening them, and discharges them from above, and more particularly to a discharge device for vertical grain mills.

[0002]

2. Description of the Related Art Conventionally, this type of grain refiner has been used in a polishing room 101.
In Japanese Patent Laid-Open No. Sho 63, a supply port (see FIG. 4) is provided in the lower part of the table and a discharge port 102 is provided in the upper part, and a resistance plate 103 biased toward the whitening chamber 101 side is provided in the discharge port 102. -218258 is well known. With this, the resistance plate 103 can apply a resistance from directly above to the end portion of the whitening chamber 101, that is, the grains discharged upward from the discharge port 102, and the inside of the whitening chamber 101 becomes uneven as a uniform pressure. While it can apply a whitening effect without unevenness,
It is necessary to provide a gutter 104 for receiving grains to be discharged around the entire circumference of the discharge port 102 against the resistance plate 103 around the discharge port 102. The gutter 105 will be connected.

By the way, generally, when grains are supplied to a grain refiner to start grain refinement, the milling room is slightly filled with grains at the beginning of the operation, and the grain is usually slightly scattered. The grain has a structure for returning it to the polishing chamber again (not shown).

However, the above-mentioned Japanese Patent Laid-Open No. 63-2182.
In grain refiners such as 58, a part of the gutter 104, in particular,
Grains are apt to stay near the corner 104a on the opposite side of the discharge gutter 105, and the fluffy grains in the initial stage of operation are not re-supplied into the polishing chamber 101, but they also rot in the gutter 104, causing a sanitary problem. there were.

[0005]

On the other hand, as shown in FIG. 5, the discharge port 101 is formed in a part of the peripheral surface of the upper end portion of the polishing chamber 106.
And a resistance plate 108 and a discharge gutter 1 are formed in the discharge port 107.
A grain refiner equipped with No. 09 and No. 09 is known from JP-A-3-4943. This has the advantage that all the grains discharged from the discharge port 107 are discharged from the discharge gutter 109 without staying, but the grains rising in the whitening chamber 106 are evenly pressed from above. It has the drawback that it cannot be applied.

In view of the above problems, the present invention discharges a vertical grain mill capable of uniformly applying pressure to the whitening chamber and rapidly discharging all the grains discharged from the discharge port. A technical problem is to provide a device.

[0007]

Means for Solving the Problems In order to solve the above-mentioned problems, a discharge device for a vertical grain mill of the present invention comprises a whitening roll on the upper part of a rotatably erected main shaft, and a lower end of the whitening roll. Connected and screwed each spiral roll, surrounding the whitening roll and providing a bran removal tube to make this gap a whitening chamber and a grain feeding port at the lower end. A vertical grain mill which comprises a supply cylinder surrounding the spiral roll, placed on the bran removal cylinder, and provided with a discharge cylinder having a discharge port at the upper end. A resistance plate that urges the discharge port is provided. B. A gutter having a ring-shaped conveying surface lower than the discharge port is provided around the discharge cylinder. C. A scraping blade that rotates along the transport surface is provided. D. A grain drop port is provided on the transport surface. E. Furthermore, a drain gutter is provided in connection with the drop port. I took the technical means.

A hollow shaft passing through the center of the upper gutter is rotatably supported, the arm of the scraping blade is fixed to the lower part of the hollow shaft, and a pulley is attached to the upper part of the hollow shaft.
A weight lever provided above the trough and an upper resistance plate may be connected by a rod inserted into the hollow shaft.

[0009]

[Function] The grains supplied from the grain feeder are pumped by the spiral roll to reach the whitening chamber, and while being further pumped while being stirred by the whitening roll, they are whitened to the biasing force of the resistance plate. By contrast, it overflows from the discharge port at the top of the discharge cylinder to the surrounding area. In this way, the refined white grains discharged from the discharge port flow into the receiving trough, are transported on the conveying surface by the scraping blades, and are all dropped from the dropping port into the discharging trough to be taken out of the machine.

In the case where the hollow shaft is provided, the hollow shaft, to which the rotational force is applied by the pulley, is rotated, whereby the scraping blade is rotated through the arm to convey the refined white grains in the gutter. Further, the biasing force of the weight lever is transmitted to the resistance plate via the rod inserted through the hollow shaft.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the drawings. A cylindrical frame 2 is erected on a box-shaped base 1, connected to the upper end of the cylindrical frame 2 to connect a supply cylinder 3, and connected to the upper end of the supply cylinder 3 to form a multi-walled bran-removing cylinder 4. The main shaft 6 connected to the upper end of the bran removal pipe 4 is connected to the discharge pipe 5, the upper end is exposed to the vicinity of the discharge pipe 5, and the lower end is penetrated into the base 1. 2. In the supply cylinder 3 and the bran removal cylinder 4, rotatably supported by bearings 7 and 8 provided in the middle and near the lower end of the main shaft 6.

A spiral roll 9 to be positioned in the supply cylinder 3 and a whitening roll 10 to be positioned in the bran removal cylinder 4 are axially attached to the main shaft 6 and surround the main shaft 6 near its lower end. To form a blower chamber 11, which is connected to a blower fan 12. The main shaft 6 is a hollow shaft whose upper and lower ends are closed, and ventilation holes 13 ..., 14 are provided in the blower chamber 11 and in the shaft mounting portion of the whitening roll 10.
Provide many ... Further, the inside of the whitening roll 10 is hollow, and an agitating projection 10a is provided on the outer surface in the vertical direction. A jet groove 10b is provided along the agitating projection 10a. In addition, the polishing chamber 58 is formed between the bran removing cylinder 4 and the polishing roll 10, and the bran collecting chamber 1 is provided around the bran removing cylinder 4.
5, the bran collecting chamber 15 is connected to the suction port of the bran collecting fan 16. Further, a supply port 17 is provided at the bottom of the supply cylinder 3.
Is opened, and the feeding end portion of the grain feeding screw conveyor 18 is connected to the supply port 17. The supply section 19 of the screw conveyor 18 is provided with a chute or the like (not shown).
It is connected to the equipment of the previous process.

On the other hand, at the upper end portion of the discharge tube 5, a device 20 for discharging finely-grained grains is provided. That is, a cylindrical trough 22 having an opening 21 at the center of the bottom is fitted into the opening 21 by inserting the upper end of the discharge tube 5 into the middle of the trough 22. At this time, a cylindrical engagement recess 23 for fitting the upper end of the discharge pipe 5 is formed in the center of the trough 22 and the opening 21 is formed at the upper end of the engagement recess 23.
Is provided, and the engagement recess 23 may be attached to the upper end of the discharge cylinder 5 so that the opening 21 and the discharge port 24 at the upper end of the discharge cylinder 5 are aligned with each other. In this way, the inner peripheral surface and the bottom surface of the gutter 22 and the outer peripheral surface of the engagement recess 21 form a ring-shaped transport path 25 to form the gutter 22.

An opening 26 is provided at the center of the upper surface of the gutter 22, and a hollow shaft 27 is inserted through the opening 26 so as to be rotatably erected by a bearing 28. The lower end of the hollow shaft 27 faces the upper part of the trough 22 and radially extends a plurality of arms 29. The free ends of the arms 29 are provided with hanging blades 30. On the other hand, a blade pulley 31 is attached to the upper end of the hollow shaft 27,
The rod 32 is inserted through the opening 35a provided in the central portion of the cover 35 of the hollow shaft 27 and the pulley 31. And
A disc-shaped resistance plate 33 is pivotally attached to the lower end of the rod 32, and the upper end is pivotally attached to the middle of the weight lever 34. One end of the weight lever 34 is pivotally attached to the cover 35 and the other end of the weight lever 3
6 is movably provided, whereby the resistance plate 33 is pressed against the discharge port 24 (opening 21) by the weight of the weight 36. Further, a drop port 46 is provided on the bottom surface of the transport path 25, and a discharge gutter 47 connected to the drop port 46 is provided so as to project from the receiving gutter 22. In addition, this discharge gutter 47
And the gutter 22 (engagement concave portion 23) is centered around the discharge pipe 5 and
It is provided to be rotatable by 0 °.

Next, the drive system will be described. The motor pulley 3 of the main motor 37 fixedly provided on one side surface of the base 1.
8 and a large-diameter pulley 39 fixed to the lower part of the main shaft 6 are interlocked and connected by a V-belt 40. A relay pulley 41 and a stepped pulley 42 are mounted on the lower portion of the main shaft 6 for driving, and the medium diameter pulley 41 is the fan pulley 4 of the blast fan 12.
2 is connected to the V belt 43. By the way, base 1
Is supported by the upper wall 1a and the bottom wall 1b and is supported by a pair of intermediate shafts 4.
4, 45 are erected, and a pulley 48 fixed to the upper part of one of the intermediate shafts 44 and a fan pulley 49 axially attached to the lower end of the fan shaft 16a of the bran collecting fan 16 are connected by a V belt 50. A pulley (not shown) axially attached to the lower portion of the intermediate shaft 44 is connected to the large diameter side of the stepped pulley by a V belt (not shown). The upper end of the other intermediate shaft 45 extends to the vicinity of the discharge device 20, and the pulley 51 and the blade pulley 31 axially attached to the upper end are connected by a V belt (not shown). A pulley (not shown) axially attached to the pulley is connected to a pulley 52 for driving the screw conveyor 18 by a belt 53, and further,
A V-belt (not shown) connects the pulley (not shown) axially attached to the lower portion to the small diameter side of the stepped pulley 42. The pulley 52 is connected via a gear box 54 to a V pulley 55 whose axial direction is orthogonal to each other, and the V pulley 55 is connected to a screw pulley 57 by a V belt 56.

The screw conveyor 18 is provided on either side of the supply cylinder 3 (see the chain double-dashed line in FIG. 2). In that case, the intermediate shafts 44 and 45 must be replaced. Further, the pulley 5 at the upper end of the intermediate shaft 45
Instead of 1, the blade pulley 31 may be directly driven by a motor M provided near the gutter 22.

The specific operation of the above embodiment will be described below. The rotation of the intermediate shaft 45 causes the screw pulley 57 to rotate via the pulley 52, the gear box 54, the pulley 55, and the V belt 56.
8 drives. As a result, the grain (which will be described as rice grain) fed into the supply unit 19 from the previous step is forcibly sent into the supply port 17 of the supply cylinder 3 by the squeeze conveyor 18 and is lifted by the spiral roll 9. To be done.

The rice grains (brown rice) fed by the spiral roll 9 reach the inside of the whitening chamber 58, and also fill the inside of the discharge cylinder 5 to receive the pressure from the resistance plate 33 to generate an appropriate internal resistance. Under such an internal state, the whitening roll 10 rotates, the rice grains are stirred by the stirring protrusions 10a, and the skin of the rice grains is peeled off due to grain friction or the like, and the whitening proceeds.
On the other hand, the blast generated by the blast fan 12 is the blower chamber 1
1, through the through hole 13, the inside of the main shaft 6 and the through hole 14 to reach the inside of the whitening roll 10 and jet from the air blow groove 10b into the whitening chamber 58 to promote bran removal.

The peeled epidermis in the polishing chamber 58,
That is, the bran leaks from the bran removing cylinder 4 due to the suction force of the bran collecting fan 16 driven via the intermediate shaft 44, the pulley 48, the V belt 50 and the fan pulley 49, and is discharged from the discharge port of the fan 16. It will be transported to the outer bag filter.

In this way, the rice grains (polished rice) that have been whitened and bran in the whitening chamber 58 are subjected to the lifting force of the spiral roll 9 and resist the biasing force of the resistance plate 33 from the entire circumference of the discharge port 24. Discharge so that it overflows into the gutter 22. The rice grains in the receiving trough 22 are sequentially scraped off into the dropping port 46 by about six scraping blades 30, and are discharged through the discharging trough 47.
The scraping blade 30 passes through the intermediate shaft 45, the pulley 51, the blade pulley 31, the hollow shaft 27, and the arm 29, and moves at a speed of 10 minutes per minute.
It is driven about 0 times, and finally it is taken out of the machine without leaving any grain.

[0021]

As described above, according to the discharging device of the vertical grain mill of the present invention, by providing the resistance plate for urging the rice grains to be fed while being whitened from directly above, The resistance is equalized so that "spattering" does not occur. Also, a gutter is installed around the upper part of the discharge tube, and a scraping blade that rotates on the transfer surface of the gutter is provided. Since the discharge gutter was provided in connection with the mouth, the refined white grains to be discharged from the discharge port so as to overflow to the surroundings are sequentially discharged without being quickly discharged by the scraping blades and retained.
It is possible to immediately return the speckled particles at the beginning of operation to the polishing room, and finally, no grain remains, which is hygienic.

Furthermore, since the hollow blade is rotated by the hollow shaft, the rod for urging the resistance plate is connected to the weight lever by using this hollow shaft, so that the resistance plate can be urged with a simple structure. In addition, it is possible to drive the scraping blade.

[Brief description of drawings]

FIG. 1 is a sectional view showing a grain refiner according to an embodiment of the present invention.

FIG. 2 is a plan view of the above.

FIG. 3 is an enlarged view of a main part.

FIG. 4 is a cross-sectional view showing a discharging device of a conventional grain refiner.

FIG. 5 is a cross-sectional view showing a discharging device of a conventional grain refiner.

[Explanation of symbols]

 1 Base 2 Cylindrical Frame 3 Supply Cylinder 4 Elimination Bran 5 Discharge Cylinder 6 Main Spindle 7 Bearing 8 Bearing 9 Spiral Roll 10 Whitening Roll 11 Blower Chamber 12 Jet Air Fan 13 Through Hole 14 Through Hole 15 Collecting Rice Bran Fan 17 Supply port 18 Screw conveyor 19 Supply unit 20 Discharge device 21 Opening part 22 Gutter 23 Engagement recess 24 Discharge port 25 Conveying path 26 Opening part 27 Hollow shaft 28 Bearing 29 Arm 30 Scraping blade 31 Blade pulley 32 Rod 33 Resistance plate 34 Weight lever 35 Cover 36 Weight 37 Main motor 38 Motor pulley 39 Large diameter pulley 40 V pulley 41 Medium diameter pulley 42 Fan pulley 43 V belt 44 Intermediate shaft 45 Intermediate shaft 46 Drop port 47 Discharge trough 48 Pulley 49 Fan pulley 50 V belt 51 Pulley 52 pulley 53 V belt 54 gearbo Box 55 V pulley 56 V belt 57 screw pulley 58 grain cleaning chamber

Claims (2)

[Claims] 1. A whitening roll is fixed to an upper part of a rotatably erected main shaft, and a spiral roll is axially attached to the lower end of the whitening roll so as to surround the whitening roll and to provide a bran removing cylinder. A gap between the bran removal cylinder and the whitening roll serves as a whitening chamber, and a supply cylinder provided with a grain feeder at the lower end is provided around the spiral roll, placed on the bran removal cylinder and discharged at the upper end. In a vertical grain mill provided with a discharge tube having, a resistance plate for urging toward the discharge port is provided at the discharge port,
A gutter having a ring-shaped conveying surface lower than the discharge port is provided around the upper part of the discharge cylinder and is provided with a scraping blade that rotates along the conveying surface. And a discharge gutter connected to the drop opening, and a discharge device for a vertical grain mill. 2. A hollow shaft passing through a central portion of the gutter is rotatably provided upright, an arm of the scraping blade is fixed to a lower portion of the hollow shaft, and a pulley is attached to an upper portion of the hollow gutter. 2. The discharge device for a vertical grain cultivator according to claim 1, wherein a weight lever provided above the plate and the resistance plate are connected by a rod inserted through the hollow shaft.