JPS58156377A - Vertical 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 The present invention is a vertical grain sorting machine that has already been developed by the present applicant, and is designed to prevent grains from being damaged or cracked during the three-dimensional lifting process. This invention relates to a vertical sorting machine with an improved lower tube of a cylindrical sorting net and a grain lifting tube disposed directly below the kernel lower layer.

The overall cross section of a vertical grain sorter already developed by the present applicant is shown in FIG. As shown in the figure, this sorting machine includes a cylindrical sorting net 5 including a lower tube 2, a mesh tube 3, and an upper tube 4 in an outer shell 1, and a cylindrical sorting net 5 fitted in the sorting net 5. It has a spiral shaft 6 arranged concentrically upright. The space inside the shell body 1 excluding the sorting paddle 5 is divided by a lower partition plate 7, an upper partition plate 8, and a drive unit installation plate 9, and is divided into a supply area 10 for grains to be sorted. Sorting area 11. It is divided into a take-out area 12 and a drive unit installation chamber 13. A lower scraping plate 14 that rotates along the circumferential surface of the lower partition plate 7 is attached to the lower cylinder 2, and the upper cylinder 4
An upper scraping plate 15 that rotates along the upper surface of the KFi upper partition plate 80 is attached. 16 is the spiral shaft 6
A cylindrical grain lifting tube that serves as a grain receiving section is installed concentrically with the sorting net 5 on the drive unit installation plate 9 directly below the 17-grain sorting net 5. , its inner diameter d8
is set equal to the inner diameter d2 of the lower cylinder 2. 18 is a supply hopper communicating with the supply port 19 of the fried grain cylinder 17;
This is a hopper for taking out the sized particles, which is installed so as to be continuous with the sized granulation outlet 21 of the sieved outer shell 1.

The rotational driving force from the sorting net 5 and the six spiral shaft motor 22 is received via appropriate transmission means such as a belt, a belt wheel, and a gear, and in this case, they rotate in opposite directions.

The grains to be sorted supplied from the supply hopper = 18 into the grain lifting cylinder 1.7 are transferred to the spiral Ji! of the spiral shaft 6. The grains are lifted by the grain lifting cylinder 16, and the grains are lifted from the lifting cylinder 17 through the lower cylinder 2 to the mesh cylinder 3. Since the grains are subjected to the action of centrifugal force at the same time as the grain lifting action, they are pushed toward the inner peripheral wall of the mesh tube 3, but since the mesh tube 3 is perforated with countless meshes, some of the grains are Waste grains with a smaller diameter than the mesh pass through the mesh and are sieved out to the sorting area 11, guided by the lower scraping plate 14 to the waste grain outlet 23, and then discharged to the outside of the outer shell 1. be done. The large grains remaining in the mesh tube 3 are sorted and transported to the upper tube 4, where they are eventually discharged from the discharge window 24 to the take-out area 12, and are guided into the outer shell l by the ten-piece scraping plate 15. 2 are led out from the outlet 21 to the take-out hopper 20 . After being stored in the hopper 20, it is packed into a packaging container such as a paper bag prepared below. The grains to be sorted are sorted using a rotating 5Fi cylindrical sorting net, which is subject to production errors such as roundness and size, and dimensional errors during assembly. Due to deformation during KFi rotational movement, etc., the second
As shown in the figure, the locus of the lower end of the lower cylinder 2 sometimes deviates from the position of the inner hole of the grain lifting cylinder 17 that stands directly below the lower cylinder 2. When such a deviation occurs, the grains to be sorted lifted by the spiral JIK16 of the spiral shaft 6 are
When moving the grains from the grain lifting cylinder 17 to the lower cylinder 2, the grain lifting cylinder 1
There was a gap between the parts that came into contact with the part that entered the inner hole area of No. 7 (see the shaded part in FIG. 2) and received an impact, causing damage and cracking, and producing a large number of defective particles.

Therefore, the present invention improves the grain lifting cylinder and the cylindrical sorting net of the vertical grain sorting machine already developed by the present applicant, so that grains to be sorted are transferred from the lifting cylinder to the lower cylinder. It is designed so that it does not come into contact with the lower end of the lower cylinder.

The configuration of the present invention will be explained below based on the embodiments shown in the drawings.

FIG. 3 is a longitudinal cross-sectional view of a main part of a vertical grain sorter showing a first embodiment of the present invention. This embodiment is one of the 17 grains for frying!
Dt and the inner diameter Dd of the lower cylinder 2 of the sorting net 5 are set in the relationship D < D, and the gap l between the periphery of the helical blade 16 of the snog spiral shaft 6 and the inner peripheral surface of the grain lifting cylinder 17 is is set to 1 to 2 times the grain size, and r41t between the peripheral edge of the spiral blade 16 and the inner circumferential surface of the lower cylinder 2 is set to approximately 3 times the grain size.
The DJ 11 and lρ values are not limited to these values, and may be changed as appropriate depending on the type and size of grains, the processing capacity of the sorting machine, etc.

In this case, the lower end of the lower tube 2 does not enter the inner hole area of the grain lifting tube 17 as shown in 2114, and the spiral shaft 6 allows the grain to flow through the grain tube 17 to the lower part. Even when transferring to the tube 2, the grains never come into contact with the lower end of the lower tube 2, and smooth lifting without damage or cracking is possible.

Therefore, the waste grains sieved out by the screen tube 3 of the sorting net body 5 are waste grains that are originally shouldered by the grains to be sorted, and the waste grains are the waste grains that are crushed in the sorting machine and become waste grains. There are no accidents,
Excellent sorting processing can be performed.

FIG. 4 is a longitudinal cross-sectional view of a main part of a vertical grain sorter showing a second embodiment of the present invention. In this embodiment, the inner diameter D0 of the grain lifting cylinder 17 and the inner diameter D1 of the lower cylinder 2. ! - is set as (D), and the difference between D! and Dl (DI-DI) is set to be larger than in the first embodiment, and between the grain-lifting cylinder 17 and the lower cylinder 2. A clear step s25 is provided in the above D□
The protrusion width of the helical blade 16 from the spiral shaft 6 is determined from the lower end of the spiral shaft 6 to the stepped portion 2 according to IfC.
51 is t□, and the range from the stepped portion 25 to the upper end of the spiral shaft is Fif, then 1. <1. Binding,
The gap 1 between the inner peripheral surface of the grain lifting cylinder 17 and the periphery of the spiral blade 16 and the gap IR between the inner peripheral surface of the lower cylinder 2 and the periphery of the spiral blade 16 are set to 1. =1. It is set so that it appears. In this case, l
It is approximately three times the particle size of □ and 78 particles. The fact that each of these setting values can be changed as appropriate is the same as in the above embodiment.
It is clear that even in this case, when the grains are lifted from the d1 grain lifting cylinder 17 to the lower cylinder 2, smoother movement of the grains is guaranteed than in the first embodiment. In addition, in the case of this embodiment, even if there is some error in the manufacturing dimensions and assembly accuracy of the sorting net 5, the rotation locus of the lower end of the lower cylinder 2 will not enter the inner hole area of the grain lifting cylinder 17. Therefore, there is no need for excessive dimensional restrictions during manufacture, and assembly can be easily performed.

As explained above, in the vertical grain sorting machine already developed by the present applicant, the present invention has the inner diameter D1 of the fried grain cylinder smaller than the inner diameter D8 of the lower cylinder of the cylindrical sorting net. When the grains move from the grain lifting cylinder to the lower cylinder, they will not come into contact with the lower end of the lower cylinder and cause damage, cracks, etc. Even if there is some error in the manufacturing dimensions and assembly accuracy of the sorting net, the rotation locus of the lower end of the lower cylinder will not enter the inner hole area of the grain lifting cylinder, so it is necessary to make excessive size restrictions during manufacturing. It is possible to assemble it easily.

[Brief explanation of the drawing]

Fig. 1 is a vertical cross-sectional view showing the entire vertical grain sorting machine that the applicant has already developed, Fig. 2 is a drawing showing the rotation locus of the lower end of the lower cylinder and the inner hole area of the grain lifting cylinder, and Fig. 3 4 and 4 are related to the present invention, FIG. 3 is a longitudinal section of the main part of a vertical grain sorter showing a first embodiment, and FIG. 4 is a vertical cross section of a vertical grain sorting machine showing a second embodiment. It is a longitudinal cross-sectional view of the main part of a grain sorter. 4... Upper tube 3... Mesh tube 2... Lower tube 5... Cylindrical sorting net body 6... Spiral shaft 1... Outer shell body 17... Grain-lifting tube patent applicant Shikoku Seisakusho Co., Ltd. Agent Patent Attorney Toshihiko Uchida Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] 1. A cylindrical sorting net consisting of an upper tube, a mesh tube, and a lower tube and a lifting spiral shaft fitted inside the sorting net are erected in the outer shell so that they rotate concentrically with each other. is,
In addition, in a vertical grain sorter in which a grain lifting cylinder serving as a grain receiving section is installed directly below the lower cylinder, the inner diameter of the grain lifting cylinder is smaller than the inner diameter of the lower cylinder. Vertical grain sorter.