JPS60156586A - Cereal grain selector - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a grain supply area from the bottom to the top,
It is housed in a vertical cylindrical frame with a rectangular cross section, divided into serial and retrieval areas, each area separated by upper and lower partition bases.
This invention relates to a grain sorting machine that has a cylindrical sorting tube set upright.

[Background of the invention]

Conventionally, sorting machines for sorting out small rice and broken rice that are mixed in with brown rice, etc., have had a horizontally installed rotating sorting tube. For this reason, this conventional sorting machine has the drawback of requiring a large installation area. Therefore, the inventors of the present invention came up with the idea of erecting a sorting tube in order to solve the above-mentioned drawbacks, and proceeded with their research. As a result, in a cylindrical frame with a square cross section, a grain lifting spiral is provided in a cylindrical sorting tube, and grains such as brown rice to be sorted are transported between the sorting tube and the grain lifting spiral. ,
When waste grains such as small rice and broken rice are pulled out of the sorting cylinder during this lifting process, it has been found that the performance is only about the same as, but better than, that of conventional sorting machines.

Incidentally, the waste grains that have been extracted outside the sorting cylinder are collected on a partition base that partitions the inside of the cylindrical frame into a supply area and a serial column, and are discharged outside the cylindrical frame. However, if the partition base is simply provided horizontally, the waste grains will stay on the partition base and cannot be discharged out of the cylindrical frame. Therefore, as a means to solve this problem, it is conceivable to provide a scraper that rotates around the sorting tube on the partition base to forcibly discharge the waste grains out of the cylindrical frame.

However, even in this case, since the rotational locus of the scraping tool is circular and the cylindrical frame has a square cross section, the sorted waste is placed in a corner between the two. There was a problem with grain retention.

[Means for solving problems]

In view of the above-mentioned drawbacks of the conventional technology, the present invention has been developed to improve and eliminate the above drawbacks.The present invention is designed to improve and eliminate the above-mentioned drawbacks of the conventional art. In a vertical grain sorting machine having a cylindrical sorting tube erected, a lower partition base for partitioning the inside of the cylindrical frame into a supply area and a serial column rotates around the sorting tube. A grain collection groove through which the raking tool passes, and a grain flow section sloped downward toward the grain collection groove are formed between the grain collection groove and the cylindrical frame, and waste grains sieved by the sorting cylinder are formed. It is an object of the present invention to provide a grain sorter in which grains, etc. are reliably collected into a grain collecting groove.

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.

〔Example〕

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 with a square cross section, which is made of a thin iron plate. The inside of the cylindrical frame 1 is divided into a grain supply area X, a sieve serial loading area, and a grain removal area Z from the bottom to the top.

Reference numeral 2.2 denotes support frames fixed to both left and right sides of the lower end of the cylindrical frame 1. A rolling shaft 3.3 is attached to the front side of the support frames 2, 2, and a grounding platform 4, 4 is attached to the rear side.

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

Reference numeral 6 denotes a transmission mechanism, which is comprised of a mission case 7 fixed to the back surface of the installation base 5, and a motor 10 that transmits and rotates a boot IJ 9 attached to the tip of an input shaft 8 projecting below the mission case 7. , a cylindrical shaft 11 that rotates in the normal direction (rotates in the direction of arrow (A)) is disposed on the upper side of the mission case 7.
A protruding shaft 12 is provided which is reversely rotated and passes through the center of the cylindrical shaft 11, and each of the shafts 11, 12 protrudes together from the upper part of the installation base 5.

13 is a pulley fixed to the output shaft of the motor IO, and 14 is a belt. 15 is a mounting frame for the motor 10, which is a cylindrical frame l.
It is stretched inside.

Reference numeral 16 denotes a grain lifting cylinder, which is installed on the installation base 5 within the cylindrical frame 1.
It is placed above. The protruding shaft 12 is arranged at the center of the grain lifting cylinder 16. Also, this fried grain W11
The inner wall surface of the upper end of 6 has a large diameter part (b) so as to expand slightly outward, and the upper end has a flange part (c).
is formed.

Numeral 17 is a grain lifting spiral, which has a structure in which a spiral is formed on the outer periphery of a cylinder column, and the lower end side is inserted into the grain lifting cylinder 16.
A spiral inner cylinder portion is fixed to the cylinder shaft 11 via a flange 18.

19 is the rotation axis. It is removably connected to the upper end of the projecting shaft 12, and its 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). Then, a stepped shaft cylinder 20 is fixed to this square shaft part (E), a bearing 21 is fitted thereto, and this bearing 21 is further enclosed in a metal 22 fixed to the grain-raising spiral 17. .

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. The lower rotary grain lifting cylinder part 23a actually forms a grain supply area
b form the extraction area Z, respectively. Further, the ceiling portion of the sorting tube 23 is closed (covered) with an umbrella-shaped frame 23c.

This umbrella top 23c is integrally provided with a fitting piece 24 that fits into the square shaft part (d) of the rotating shaft 19, so that it is wrapped around the outer periphery of the grain lifting spiral 17. It is being On the other hand, on the lower side of the sorting tube 23,
Its lower end is folded outward and upward, and this portion is attached so as to fit into the large diameter portion (b) of the grain lifting cylinder 16.

Reference numeral 25 denotes a seal, as shown in FIG. The outer peripheral edge is pressed by an annular pressing plate 45. The pressing plate 45 is fixed to the grain frying cylinder 16 with screws 26 and 26.

Reference numeral 27 denotes a roller, as shown in FIGS. 23a
This is for receiving a ring 28 integrally provided on the outer periphery.

Reference numeral 29 denotes a grain input port drilled on the back side of the grain lifting cylinder 16, and a hopper 30 formed on the outside of the cylindrical frame l is inserted into this port.
are being communicated.

31 is a lower partition base. This lower partition base 31
is fixed to the inner wall surface of the lower part of the cylindrical frame 1,
Grain collection groove 4 formed by bending the outer peripheral portion of the sorting tube 23 upward
6, and a grain flow section 43 (see FIG. 6) installed between the grain collecting groove 46 and the cylindrical frame l.

Reference numeral 32 denotes a lower cone-shaped flange, which is fixed to the sorting cylinder 23 and is provided so as to enter the grain collecting groove 46 of the lower partition base 31.

A scraping tool 33 is attached to the cone-shaped flange 32, and the lower surface of the scraping tool 33 is close to the bottom surface of the grain collecting groove 46.

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

An upper partition base 36 is provided with a grain collection groove 47, and 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 scraper.

The relationship between the upper partition base 36, the conical flange 37, and the scraping tool 38 is almost the same as the relationship between the lower partition base 31, the conical flange 32, and the scraping tool 33, and
The explanation here will be omitted.

Reference numeral 39 denotes a grain discharge port, which is provided in the upper rotating grain cylinder portion 23b. 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 outlet, which is opened at the upper side of the cylindrical frame 1 and formed at the upper side of the upper partition base 36.

41 is a storage tank with a hopper-like opening at the bottom.

An opening valve 42 is provided and communicates with the finished grain outlet 40.

In FIG. 3, reference numeral 43 indicates a flowing grain portion of the lower partition base 31. This grain flow section 43 is located at C-C in FIG.
This is best shown in the cross-sectional view of FIG. 6, and as described above, it is formed between a corner portion (square portion) in the cylindrical frame 1 and the grain collecting groove 46. In order to ensure that the grains flowing down inside the cylindrical frame 1 are collected into the grain collecting groove 46, the cylindrical frame 1 having a square cross section is moved into the grain collecting groove 46.
It slopes downward towards 6. In addition, the upper partition base 36 prevents the finished grains from flowing out or flowing down from above to a part of the corner of the cylindrical frame 1, and all the finished grains flowing out from the grain outlet 39 of the sorting tube go to the upper partition base. Since the grains are collected in the 36 grain collecting grooves 47, the above-mentioned structure is unnecessary.

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

First, when the input shaft 8 of the mission case 7 is rotated by the motor 10, the cylindrical shaft 1 protrudes above the installation base 5.
1 and the protruding shaft 12 are rotated in the opposite directions, and the grain lifting spiral 17 is transmitted and rotated in the direction of the arrow (A) and the sorting tube 23 is rotated in the opposite direction of the arrow (see FIG. 4). In this state, hopper 30
The grain to be sorted, for example, brown rice that has just been hulled by a huller, is supplied. Then, the supplied brown rice was heated to 16 grains.
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. When the brown rice is transported between the grain lifting spiral 17 and the sorting cylinder 23 in this way,
Waste rice such as small rice, green rice, or broken rice passes through the mesh or holes of the sorting tube 23 and is extracted to the outside of the sorting tube 23.

The extracted rice scraps are received by the grain flow section 43 and the grain collecting groove 46 of the lower partition base 31 mentioned above, and are received by the flow grain section 4
The waste rice received in step 3 is collected into the grain collection ditch 46. The waste rice collected in the grain collection groove 46 in this manner is scraped up by the scraping tool 33 and discharged from the waste grain outlet 34 to the outside of the machine.

On the other hand, all of the finished rice discharged from the grain discharge port 39 is received by the grain collection groove 47 of the upper partition base 36, is scraped up by the raking tool 38, and is transferred from the finished grain discharge port 40 into the storage tank 41. be discharged.

In this way, the brown rice is sent between the grain lifting spiral 17, the grain lifting cylinder 16, and the sorting cylinder 23, but at this time, the brown rice is
Due to the action of the grain lifting spiral 17, the grains are conveyed while being pressed against the inner wall surfaces of the grain lifting cylinder 16 and the sorting cylinder 23, so if there is even a slight gap at the joint between the grain lifting cylinder 16 and the sorting cylinder 23, the brown rice will fall there. A clogged, damaged or crushed sip. However, between the grain lifting cylinder 16 and the sorting cylinder 23, the lower end sliding surface 44 of the sorting cylinder 23 is reliably closed with a seal 25, so that brown rice is not interposed between the two. . Therefore,
The brown rice is conveyed very smoothly, and no jamming occurs between the grain lifting tube 16 and the sorting tube 23, so that 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. In addition, waste grains after sorting do not stay between the cylindrical frame with a square cross section and the grain collection groove (grain flow section), and all waste grains are collected and discharged in the grain collection groove. I can do it.

[Brief explanation of the drawing]

The drawings all show one embodiment of the present invention, and FIG. 1 is a side sectional view, FIG. 2 is a plan view, FIG. 3 is a sectional view taken along line A-A in FIG. 1, and FIG. 4 is the same as in FIG. 1. FIG. 5 is an enlarged side sectional view, and FIG. 6 is a CC sectional view of FIG. 3. X... Supply area Y... Area 2... Removal area l... Cylindrical frame 31... Partition base 23... Sorting cylinder 33... Scraping tool 46...
・Grain collecting groove 43... Grain flow section Patent applicant: Shikoku Seisakusho Co., Ltd. Representative: Patent attorney: Toshihiko Uchida 51:1 Figure 6 7

Claims (1)

[Claims] 1. A grain supply area from the bottom to the top of the interior. In a vertical grain sorter in which a cylindrical sorting tube is set upright in a vertical cylindrical frame with a rectangular cross section divided into a serialization and take-out area, the inside of the cylindrical frame is divided into a supply area and a serialization area. A lower partition base for partitioning into a grain collecting groove, through which a raking tool rotating around the sorting tube passes, and a downward slope toward the grain collecting groove between the grain collecting groove and the cylindrical frame. A grain sorting machine is characterized in that a grain flow section is formed so that waste grains, etc. sieved by a sorting cylinder are surely collected into a grain collecting groove.