JPS634469B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a vertical grain sorter.

[Conventional technology and its drawbacks]

Conventionally, sorting machines for sorting out small rice and broken rice mixed in with brown rice, etc., have had a horizontally installed rotating sorting tube. For this reason, this conventional sorting machine had the disadvantage of requiring a large installation area. Therefore, in order to eliminate the above-mentioned drawbacks, the present inventors came up with the idea of erecting a sorting tube and proceeded with research. the result,
A grain lifting spiral is provided in the sorting cylinder, and grains such as brown rice to be sorted are lifted between the sorting cylinder and the grain lifting spiral, and waste grains such as small rice and broken rice are sorted during this lifting. It was found that when the material is removed from the cylinder and sorted, the performance is almost the same as, or even better than, that of a conventional sorting machine. However, although it has the above-mentioned characteristics, if a gap is created between the lower rotary grain lifting cylinder formed at the bottom of the sorting cylinder and the fixed grain lifting cylinder installed opposite thereto, the grains will be removed from there. There was a problem with grains leaking.

[Means for solving problems]

The present invention improves and eliminates the above-mentioned drawbacks of the conventional technology, and includes a cylindrical frame having an appropriate shape such as a square or circular cross section.
A partition base is provided inside the cylindrical frame at an appropriate height from the bottom of the cylindrical frame, and a cylindrical frying cylinder is erected on the top of the partition base at a predetermined distance from the inner wall surface of the cylindrical frame. The inner surface of the upper end of the grain cylinder is formed to have a slightly larger diameter, and is rotated by a transmission mechanism provided at the lower part of the partition base, and is attached to the upper side of a rotating shaft supported in an upright state for transmission. A sorting cylinder formed into a cylinder with a rotating mesh or a perforated iron plate is installed in the cylindrical frame so as to be connected to the upper part of the grain lifting cylinder, and the upper and lower ends of this sorting cylinder are covered with a mesh or perforated iron plate. A lower rotating grain lifting cylinder part and an upper rotating grain lifting cylinder part are formed without forming a lower rotary grain lifting cylinder part, and a sliding cylinder is provided at the lower end of the lower rotating grain lifting cylinder part, facing a large diameter part formed at the upper end of the grain lifting cylinder. A seal made of felt material, rubber material, etc. is provided between this sliding surface and the large-diameter portion, and inside the grain lifting cylinder and sorting cylinder there is a lifting cylinder that is transmitted and rotated by the transmission mechanism. A grain spiral is provided, the grain lifting cylinder is provided with a grain input port that is electrically connected from outside the cylindrical frame, and a lower cylindrical gutter is provided between the lower rotating grain lifting cylinder part and the cylindrical frame. A waste grain discharge port is provided in the cylindrical frame on the upper outer periphery of the lower cylindrical gutter, through which the waste grains leaking from the sorting pipe are discharged, and an upper part is provided between the upper rotary grain lifting cylinder and the cylindrical frame. A cylindrical gutter is provided, and a grain outlet through which the lifted grains pass is provided in the upper rotary grain lifting cylinder section located above the upper cylindrical gutter, and the cylindrical frame on the upper outer periphery of the upper cylindrical gutter has the above-mentioned It is an object of the present invention to provide a grain sorting machine provided with a finished grain discharge port through which grains are discharged from a grain discharge port.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described in more detail below based on embodiments shown in the drawings.

[Embodiment] FIG. 1 is a vertical cross-sectional view showing the entire vertical grain sorting machine according to an embodiment of the present invention, and FIG. 2 is a plan view thereof. In the figure, reference numeral 1 denotes a cylindrical frame having a rectangular planar cross section. This cylindrical frame 1 is formed of a thin iron plate, and supporting frames 2 are fixed to both left and right sides of its lower end. Rolling wheels 3, 3 are provided on the front sides of the supporting frames 2, 2, and grounding platforms 4, 4 are provided on the rear sides.

Reference numeral 5 denotes a partition base, which is stretched inside the cylindrical frame 1 at an appropriate height from the bottom.

Reference numeral 6 denotes a transmission mechanism, which includes a transmission case 7 fixed to the back surface of the partition base 5, and a motor 10 that transmits and rotates a pulley 9 attached to the tip of an input shaft 8 that protrudes below the transmission case 7. Become,
The upper part of the transmission case 7 is provided with a cylindrical shaft 11 that rotates normally (rotates in the direction of arrow A) and a protruding shaft 12 that slowly reverses and passes through the center of the cylindrical shaft 11. , 12 project from the upper part of the partition base 5.

13 is a pulley fixed to the output shaft of the motor 10;
4 is a belt. Reference numeral 15 denotes a mounting frame for the motor 10, which is stretched inside the cylindrical frame 1.

Reference numeral 16 denotes a grain lifting cylinder, which is erected on the partition base 5 within the cylindrical frame 1. The protruding shaft 12 is located at the center of the grain lifting cylinder 16. Further, the inner wall surface of the upper end of the grain lifting cylinder 16 is formed into a large diameter portion so as to expand slightly outward, and the upper end thereof is formed into a flange portion C.

Reference numeral 17 denotes a grain lifting spiral, which has a structure in which a spiral is formed on the outer periphery of a cylindrical column.The lower end side is inserted into the grain lifting cylinder 16, and the inner cylinder part of the spiral is connected to the cylinder shaft 11 via a flange 18. It's stuck.

Reference numeral 19 denotes a rotating shaft, which is detachably connected to the upper end of the projecting shaft 12, and whose upper end projects further than the upper end of the grain-frying spiral 17 to form two upper and lower square shaft parts D and E. There is. Then, a stepped shaft cylinder 20 is fixed to this square shaft part E, a bearing 21 is fitted thereto, and the bearing 21 is further included in the grain lifting spiral 17 with a fixed metal 22.

Reference numeral 23 denotes a sorting cylinder, and the upper and lower parts thereof are formed with a lower rotary grain-lifting cylinder part 23a and an upper rotary grain-lifting cylinder part 23b, in which no mesh or perforations are formed. A mesh or perforated iron plate portion is formed that is slightly smaller than the grain size. Then, the ceiling part is covered with an umbrella-shaped frame 23c, and a fitting piece 24 that fits with the square shaft part 2 of the rotation shaft 19 is integrally provided on the umbrella-shaped frame 23c. The sorting tube 23 is attached so as to be wrapped around the outer periphery of the tube. On the other hand, on the lower side of the sorting tube 23, its lower end is folded back outward and upward so that this portion fits into the large diameter portion RO of the grain lifting tube 16.

Reference numeral 25 denotes a seal, as shown in FIG. The outer peripheral edge is fitted with an annular pressing plate 45.
I'm holding it down. Then, tighten the holding plate 45 with screws 2.
It is fixed to the grain frying tube 16 with 6,26.

Reference numeral 27 denotes a roller, which is rotatably supported on the flange portion C of the grain lifting cylinder 16, as shown in FIGS. 1 and 4. This roller 27 is for receiving a ring 28 that is integrally provided on the outer periphery of the lower rotary grain lifting cylinder portion 23a of the sorting cylinder 23.

Reference numeral 29 denotes a grain inlet opened on the back side of the grain lifting cylinder 16, and a hopper 30 formed on the outer side of the cylindrical frame 1 is communicated with this.

A lower cylindrical gutter 31 is fixed to the inner wall surface of the lower portion of the cylindrical frame 1, and a portion near the outer periphery of the sorting tube 23 is bent upward. Reference numeral 32 denotes a lower cone-shaped flange, which is fixed to the sorting tube 23 and is provided so as to surround the upright portion of the lower cylindrical gutter 31 from the outside.

Reference numeral 33 denotes a rotary blade, which is attached to the conical flange 32 and has a lower surface close to the upper surface of the lower cylindrical gutter 31.

34 is a waste grain discharge port, and a gutter 35 that projects outside the machine is provided in this part.

Reference numeral 36 denotes an upper cylindrical gutter, which is provided on the inner wall surface of the upper portion of the cylindrical frame 1.

37 is an upper cone-shaped flange, and 38 is a rotating vane. The relationship between the upper cylindrical gutter 36, the cone-shaped flange 37, and the rotating blade 38 is substantially the same as the relationship between the lower cylindrical gutter 31, the conical flange 32, and the rotating blade 33 described above.

39 is a grain discharge port, which is connected to the upper rotary lifting grain cylinder part 2;
3b. The grain discharge port 39 is an opening for discharging the grains lifted by the grain lifting spiral 17 to the outside.

Reference numeral 40 denotes a finished grain discharge port, which is opened at the upper side of the cylindrical frame 1 and formed at the upper side of the upper cylindrical gutter 36.

A storage tank 41 has a hopper-shaped lower part and is provided with a valve 42 for opening and closing, and communicates with the finished grain outlet 40.

In addition, in Fig. 3, 43 indicates the lower cylindrical gutter 3.
This is a floating grain board provided on the upper surface of 1. This grain flow plate 43 is designed to ensure that grains flowing down inside the cylindrical frame 1 are collected into the cylindrical gutter 31.

Next, the operating mode of the embodiment sorting machine configured as described above will be explained.

First, the transmission case 7 is driven by the motor 10.
When the input shaft 8 is transmitted and rotated, the cylinder shaft 11 and the projection shaft 12 that protrude above the partition base 5 are reversed, and the grain lifting spiral 17 is transmitted and rotated in the direction of arrow A, and the sorting cylinder 23 is rotated in the opposite direction of the arrow. (See Figure 4).
In this state, the hopper 30 is supplied with grains to be sorted, for example, brown rice that has just been hulled by a huller. Then, the supplied brown rice enters between the grain lifting cylinder 16 and the grain lifting spiral 17, and is transported by the grain lifting spiral 17. The grains are then lifted to the upper part of the sorting tube 23 and discharged to the outside from the grain outlet 39. In this way, when brown rice is transported between the grain frying spiral 17 and the sorting tube 23, waste rice such as small rice, green rice, or broken rice passes through the mesh or punched holes of the sorting tube 23 to the outside of the sorting tube 23. Pull out. Then, this extracted waste rice is received by the lower cylindrical gutter 31, and the rotary blade 3
8 and are discharged from the machine through the waste grain discharge port 34.

On the other hand, the finished rice discharged from the grain discharge port 39 is received by the upper cylindrical gutter 36 and sent to the rotating blade 38.
The finished grains are agitated and discharged from the finished grain outlet 40 into the storage tank 41.

In this way, the brown rice is transported between the grain lifting spiral 17, the grain lifting cylinder 16, and the sorting cylinder 23;
Since the brown rice is conveyed while being pressed against the inner wall surface of the sorting tube 23, if there is even a slight gap at the joint between the grain frying tube 16 and the sorting tube 23, the brown rice will get stuck there and be damaged or crushed. . However, between the grain frying cylinder 16 and the sorting cylinder 23 of the present invention, the sorting cylinder 2
The lower end sliding surface 44 of No. 3 is reliably closed with a seal 25 to prevent brown rice from intervening between the two. Therefore, the brown rice is conveyed very smoothly, and no jamming occurs between the grain frying tube 16 and the sorting tube 23, and therefore the brown rice is not damaged or crushed.

〔Effect of the invention〕

As explained above, according to the present invention, the installation area of the grain sorter can be reduced, and it is possible to perform highly accurate sorting that reliably removes waste grains from grains. Further, even when the sorted grains are conveyed from the inside of the grain lifting cylinder through the sorting cylinder in the grain lifting spiral, the grains do not accidentally spill out from the joint between the grain lifting cylinder and the sorting cylinder.
In addition, grains do not become clogged in the joint and are not crushed or damaged, and the joint can be fed extremely smoothly to achieve high-performance sorting.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side sectional view, Fig. 2 is a plan view of the same, and Fig. 3 is an A--
A sectional view, FIG. 4 is a BB sectional view of FIG. 1, and FIG. 5 is an enlarged side sectional view. 1... Cylindrical frame, 5... Partition base, 6...
...Transmission mechanism, 16...Grain lifting tube, 17...Grain lifting spiral, 19...Rotating shaft, 23...Sorting tube, 23a...
...Lower rotating grain cylinder, 23b...Upper rotating grain cylinder,
25... Seal, 29... Grain inlet, 31...
Lower cylindrical gutter, 34... Waste grain outlet, 36...
Upper cylindrical gutter, 39...grain outlet, 40...finished grain outlet.

Claims (1)

[Claims] 1. A cylindrical frame having an appropriate shape such as a square or circular cross section is erected, and a partition base is provided inside the cylindrical frame at an appropriate height from the bottom of the cylindrical frame.
A cylindrical grain lifting cylinder is erected on the top of this partition base at a predetermined distance from the inner wall surface of the cylindrical frame.
The inner surface of the upper end of this grain lifting cylinder is formed with a slightly larger diameter, and is attached to the upper side of a rotating shaft that is rotated by a transmission mechanism provided at the lower part of the partition base and supported in an upright state. A cylindrical sorting cylinder made of a mesh or perforated iron plate that is rotated by transmission is installed in the cylindrical frame so as to be connected to the upper part of the grain lifting cylinder, and the upper and lower ends of this sorting cylinder are covered with a mesh or a perforated iron plate. A lower rotating grain lifting cylinder part and an upper rotating grain lifting cylinder part are formed without openings, and a sliding part is provided at the lower end of the lower rotating grain lifting cylinder part facing the large diameter part formed at the upper end of the grain lifting cylinder. A sliding surface is formed, and a seal made of felt material, rubber material, etc. is provided between this sliding surface and the large diameter portion, and inside the grain lifting cylinder and sorting cylinder are rotated by the transmission mechanism. A grain lifting spiral is provided, the grain lifting cylinder is provided with a grain input port that is electrically connected from outside the cylindrical frame, and a lower cylindrical gutter is provided between the lower rotating grain lifting cylinder part and the cylindrical frame. A waste grain discharge port for discharging waste grains leaking from the sorting pipe is provided in the cylindrical frame on the upper outer periphery of the lower cylindrical gutter of the lever, and a waste grain outlet is provided between the upper rotary grain lifting cylinder part and the cylindrical frame. is provided with an upper cylindrical gutter, a grain outlet through which the lifted grains pass through the upper rotating grain lifting cylinder section located above the upper cylindrical gutter, and a cylindrical frame on the upper outer periphery of the upper cylindrical gutter. A grain sorting machine is provided with a finished grain discharge port through which grains discharged from the grain discharge port are discharged.