JP2002255330A - Vertical grain conveyance device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable continuous operation over a long time without causing clogging due to a foreign matter mixed in grains. SOLUTION: A screw 2 is rotatably arranged in an outer cylinder 1. An opening part 1a is provided in a section corresponding to a hopper 5 in the outer cylinder 1, a net body 3 covering the opening part 1a is provided, and a cover 4 covering an outer peripheral face of the net body 3 with a clearance 4a is provided. The outer cylinder 1 is fixed to a leg part 12a on one side in a forklike support base S having a pair of leg parts 12a, 12b whose opening leg angle is stepwise variable in such a way that the net body 3 is equivalent to the leg part 12b on the other side. The grain supplied from the hopper 5 is carried up by a flight 2b of the rotating screw 2, while the foreign matter mixed in the grains is discharged into a clearance 4a between the cover 4 and the screw 2 through meshes of the net body 3, and the grain only is carried up to a discharge cylinder 6 and is discharged out of the machine.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical grain conveying device for frying grain.

[0002]

2. Description of the Related Art A conventional vertical grain conveying apparatus for frying a grain comprises a cylindrical outer cylinder, a screw rotatably disposed in the outer cylinder, and a rotation of the screw. A drive mechanism, and is configured to fry the grains supplied from a hopper provided at a lower part of the outer cylinder and discharge the grains to the outside of the machine from a discharge cylinder provided at an upper part of the outer cylinder. (See JP-A-11-319591).

[0003]

The above-mentioned conventional vertical grain conveying apparatus does not have a function of separating foreign matters mixed in grains, so that foreign matters mixed in grains can be separated from the flight of the screw and the outer cylinder. Easily clog in the gap between the two. In particular, when used to transport waste rice with a large amount of bran, the bran clogged in the gap between the screw flight and the outer cylinder becomes solid and the screw cannot rotate, so it is frequently disassembled. -There was a problem that cleaning work had to be performed.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and does not cause clogging or the like due to foreign matters mixed in grains, and enables a vertical grain capable of continuous operation for a long time. It is intended to realize a grain transport device.

[0005]

In order to achieve the above object, a vertical grain conveying device of the present invention comprises an outer cylinder having a hopper at a lower part and a discharge cylinder at an upper part; A vertical grain transport device that includes a rotatably disposed screw and a drive mechanism that rotates the screw, and that lifts the kernel supplied from the hopper and discharges the kernel from the discharge cylinder. The outer cylinder has an axially elongated opening formed by cutting off a part of the peripheral wall at a portion facing the hopper, and a part of the same shape as the part of the cut off peripheral wall that covers the opening. A mesh, and a cover that covers an outer peripheral surface of the mesh with an air gap provided therebetween, and the outer cylinder is provided on one side of a bifurcated support having a pair of legs with a variable opening angle. The net is fixed to the other leg so as to face the other leg. And it is characterized in Rukoto.

Further, it is assumed that a guard having a plurality of slits substantially parallel to the flow direction of the supplied grains is provided in the hopper.

[0007] Further, it is assumed that the net and the cover are detachably provided to the outer cylinder.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a vertical grain conveying device according to the present invention will be described with reference to the drawings.

As shown in FIGS. 1 and 2, the outer cylinder 1 is
The cross-sectional shape in the radial direction is octagonal vertically long, and the lower end side of the outer cylinder 1 is closed by a bottom plate 1b.
A hopper 5 is provided in a portion near the upper side of b. on the other hand,
The upper end side of the outer cylinder 1 is closed by a top plate 1c, and a discharge cylinder 6 having a length with an opening 6a at the tip protruding outward beyond the cover 4 is provided in a portion near a lower portion of the top plate 1c. Have been.

A portion of the outer cylinder 1 facing the hopper 5 is provided with a vertically elongated opening 1a extending in the axial direction and having a shape obtained by cutting off portions corresponding to three sides on one side of the octagonal peripheral wall. The opening 1a is covered with a net 3 having substantially the same cross-sectional shape as that of the cut three sides, and the cover 4 has a U-shaped cross-section that covers the outer peripheral surface of the net 3 with a gap 4a. Is provided.

Further, as shown in FIG.
By providing a guard 19 having a plurality of slits 19a substantially parallel to the flow direction of the input grain, the fingers of the worker are protected and the flow of the grain to the supply port 5a is devised to be stable. Have been.

Although not shown, if the net 3 and the cover 4 are detachably fixed to the outer cylinder 1 using detachable fixing means such as screws, the mesh 3 and the cover 4 correspond to the grain size of the grains. The mesh can be replaced with a mesh having a different mesh size, or can be replaced with a new mesh when the mesh is broken.

A screw 2 having a flight 2b for frying the grains supplied from a supply port 5a communicating with a hopper 5 toward a discharge cylinder 6 is concentrically arranged in the outer cylinder 1. I have.

In this embodiment, the screw 2 is rotatably supported at the lower end of the screw shaft 2a on the bottom plate 1b via a bearing 7a, and has a portion near the upper end on the top plate 1c via the bearing 7b. And is rotatably supported,
An upper end protruding into the case 20 is interlocked via an axis coupling member 10 to an output shaft 11a of a motor 11 mounted on an upper lid 20a which is a driving mechanism for rotating the screw 2. In order to prevent foreign matter from entering the bearing 7a, a seal member 7c is interposed between the screw shaft 2a and the through hole of the bottom plate 1b.

As shown in FIG. 4, the shaft coupling member 10 is made of a sleeve 8 made of an elastic material such as rubber.
And a pair of fastening bands 9.
a and the output shaft 11a of the motor 11 are inserted from both ends of the sleeve 8, respectively.
It is configured so that tightening by a can be linked and connected. For this reason, even when an assembly error or the like occurs between the axis of the output shaft 11a of the motor 11 and the axis of the screw shaft 2a, it is absorbed by the deformation of the sleeve 8 and the rotation of the screw 2 The generation of vibration and noise at the time is suppressed.

Further, the outer cylinder 1 has one leg 12a of a bifurcated support base S having a pair of legs 12a and 12b whose opening angle can be varied stepwise, and the mesh body 3 has the other leg. Part 1
2b.

In the present embodiment, the bifurcated support S
Is a pair of legs 1 whose upper ends are pivotally connected via a pivot 16.
2a, 12b and the other leg 12b have a pivot 17 at one end.
And a plurality of holes 1 provided on the free end side of the yoke 13 at intervals in the axial direction.
3a, one of the plurality of holes 13a is selected, and a pin 18 attached to one of the legs 12a is inserted and the leg opening angle of the pair of legs is changed stepwise. It is configured to be able to.

The outer cylinder 1 is composed of the net 3 and the other leg 12.
b is fixed to one of the legs 12a via a pair of brackets 14 and 15 so as to face the outside b by changing the opening angle of the pair of legs 12a and 12b stepwise as described above. The inclination angle of the cylinder 1 toward the net 3 can be changed stepwise.

The bifurcated support S is not limited to the one in the present embodiment, and the two ends of the yoke with the expansion and contraction means such as a turnbuckle (not shown) interposed therebetween.
a, 12b by changing the length of the yoke by adjusting the axial length of the expansion / contraction means such as the turnbuckle, thereby changing the leg opening angle of both legs 12a, 12b in a stepless manner. It can be configured as follows.

In the vertical grain conveying apparatus according to the present embodiment, the grains supplied from the hopper 5 are lifted upward by the flight 2b of the rotating screw 2, while foreign matter mixed in the grains during the time. Is discharged into the space 4a between the cover 4 through the mesh of the net body 3 and falls into the container 30, and only the kernel from which the foreign matter is separated is fried to the discharge cylinder 6 and discharged outside the machine. As a result, the gap between the flight 2b of the screw 2 and the outer cylinder 1 is not clogged with foreign matter, and continuous operation for a long time can be performed.

A pair of legs 12 of the bifurcated support S is provided.
The inclination angle of the outer cylinder 1 toward the net 3 can be changed in a stepwise manner by changing the leg opening angles of the a and 12b in a stepwise manner. As a result, an efficient operation can be performed by selecting an optimum inclination angle according to the type of grain.

In the present invention, it goes without saying that the cross-sectional shape of the outer cylinder in the radial direction is not limited to the above-mentioned octagon, but may be changed to a polygon or a circle having more angles than the octagon.

[0023]

Since the present invention is configured as described above, it has the following effects.

[0024] While the grain supplied with the foreign matter supplied from the hopper is fried toward the discharge cylinder, the mixed foreign matter is separated and removed through the mesh of the mesh body and released into the gap between the cover and the cover. Only the grains that do not contain foreign matter are fried to the discharge cylinder. As a result, there is no possibility that foreign matter mixed in the grain is clogged in the gap between the outer cylinder and the flight of the screw, and continuous operation can be performed for a long time.

Further, by changing the angle of inclination toward the net, the efficiency of separation of foreign matter separated and removed through the mesh of the net can be changed. The operation corresponding to the ratio is possible.

[Brief description of the drawings]

FIG. 1 is a schematic vertical sectional view of a vertical grain transport device according to one embodiment.

FIG. 2 is a schematic sectional view taken along line AA of FIG.

FIG. 3 is a schematic partial perspective view showing a lower part of the vertical grain transport device shown in FIG. 1;

FIG. 4 is a schematic exploded perspective view showing a shaft coupling part in the vertical grain conveying device shown in FIG. 1;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 outer cylinder 1a opening 1b bottom plate 1c top plate 2 screw 2a screw shaft 2b flight 3 mesh 4 cover 4a air gap 5 hopper 6 discharge cylinder 7a, 7b bearing 7c seal member 8 sleeve 9 fastening band 10 shaft coupling member 11 motor 11a output Shaft 12a, 12b Leg 13 Yoke 13a Hole 14, 15 Bracket 16, 17 Axis 18 Pin 19 Guard 19a Slit 20 Case 30 Container

Continued on the front page (72) Inventor Toshio Ogawa 4290, Fujioka-cho, Shimotsuga-gun, Tochigi Prefecture, Japan 4290 Fujioka, Inc. Reference) 3F040 AA04 BA01 EA03 3F075 AA09 BA01 BB01 CA02 CA09 CC04 CC05 CC09

Claims (3)

[Claims] 1. An outer cylinder having a hopper at a lower part and a discharge cylinder at an upper part, a screw rotatably disposed in the outer cylinder, and a drive mechanism for rotating the screw. A vertical grain conveying device that flies grains supplied from the hopper and discharges the grains from the discharge cylinder, wherein the outer cylinder is formed by cutting off a part of a peripheral wall at a portion facing the hopper. An axially elongated opening, a mesh body having substantially the same shape as a part of the cut-off peripheral wall that covers the opening, and a cover that covers the outer peripheral surface of the mesh body with a gap is provided. In addition, the outer cylinder is fixed to one leg of a bifurcated support having a pair of legs whose opening angle is variable so that the mesh body faces the other leg. A vertical grain conveying device characterized by the above-mentioned. 2. The vertical grain conveying device according to claim 1, wherein a guard having a plurality of slits substantially parallel to a flow direction of the supplied grain is provided in the hopper. 3. The net according to claim 1, wherein the net and the cover are detachably provided to the outer cylinder.
The vertical grain conveying device as described in the above.