JPS5949875A - Shaft type grain sorter - 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 relates to an improvement in a vertical grain sorter to prevent grains from remaining inside a grain receiver that accommodates the lower part of a spiral body for lifting grains.

The vertical grain sorter has a structure whose overall cross section is shown in FIG. That is, the sorting net body 1 which is rotatably installed upright, and the spiral body 2 which is fitted into the inside of the sorting rope body 1 and is concentrically placed upright so as to be rotatable in the opposite direction to the sorting net body 1, both It has a structure built inside the casing 3. Inside the casing 3 there is a lower grain supply 1@i4,
It is divided into an intermediate sorting area 5 and an upper grain removal area 6, and the grain supply area 4 and the sorting area 5 are separated by a lower partition plate 7.
The sorting area 5 and the grain removal area 6 are each separated by an upper partition plate 8, which prevents small waste grains from being sieved from getting mixed into the unsorted grain group, and from sorting the large grains that have been sorted. It is designed to prevent grains from getting mixed into the waste grain group. A cylindrical grain receiving section 10 is installed directly above the center of the base 9. An input port 10a is opened near the back side of the inner surface of the grain receiving section 10, and an outlet of a charging hopper 11 provided on the back side of the casing 3 is connected to the input port 10a. The sorting net 1 is a cylinder that is rotatably supported in an upright position directly above the grain receiving section 10, and includes a bottomless lower cylinder 12 facing the grain supply area 4;
An upper cylinder 14 facing the grain removal area 6 and having a discharge window 13 on the circumferential side, and an upper cylinder 14 facing the sorting area 5 and having numerous meshes 17.
It has a form in which it is integrally connected to a mesh tube 15 having holes therein. The spiral body 2 is vertically inserted into the lower tube 12, the net tube 15, and the upper tube 14 of the sorting net body 1 from the grain receiving part 10, and is fitted and rotated therein. A spiral blade 16 is attached to the outer periphery of the blade so as to extend over almost the entire circumference. Reference numeral 23 denotes a motor, which applies rotational driving force to the sorting net 1 and the spiral body 2 via appropriate transmission means such as bells 1 to 24, belt wheels 25, 25', and gear box 26. In this case, the spiral body 2 is 20
High-speed forward rotation of 0 to 400 rp nl, sorting net 1
It is preferable to rotate at a low speed of 50 to 1100 pp.

When a rotational force is applied to the spiral body 2 and the sorting net body 1, the grains to be sorted that are received in the grain receiving part 10 are first scooped up by the spiral vA16 of the spiral body 2, and , the lower cylinder 1 is subjected to a grain lifting action by the spiral blades 16.
The grains are lifted through the position No. 2 to the position of the mesh tube 15. The grains are subjected to the action of centrifugal force at the same time as the lifting action, so they are pushed toward the inner peripheral wall of the mesh tube 15, but since the mesh tube 15 is perforated with countless lines 17, Among the grains, waste grains with a diameter smaller than the diameter of the mesh 17 pass through the mesh 17 and are sieved out to the sorting area 51\, and are discharged by the lower blade 18 installed on the outer periphery of the grain receiving part 10. (not shown), and is discharged to the outside of the casing 3.In this way, the waste grains are sieved out at the position of the screen tube 15, and the remaining large particles are sieved out from the upper tube 15. The grains are lifted and transported to the position, and are eventually discharged from the discharge window 13 to the grain removal area 6.
The water is guided to the outlet 20 by an upper scraper blade 19 provided on the outer periphery of the upper cylinder 14, and is supplied into the storage tank 21.

Incidentally, in the vertical grain sorting machine, in order to keep the inside of the grain receiving section 10 clean after the sorting operation is completed, it is necessary to prevent residual grain from being generated. Therefore, it is conceivable to bring the lower starting end of the spiral blade 16 of the grain lifting spiral body 2 into contact with the bottom surface of the grain receiver 10 to scoop up all of the grains. However, it is difficult to fit the high-speed rotating vertical spiral body 2 into the grain receiving section 10 so that the lower starting end of the spiral blade 16 contacts the bottom surface of the grain receiving section 10 due to the accuracy of workmanship and assembly. It is possible. Therefore, conventionally, a distance of about 81 1i1 (l
was provided, and residual grains were generated in the grain receiving section 10.

The present invention aims to provide a vertical grain sorter to solve the above-mentioned drawbacks.

Hereinafter, the present invention will be explained based on embodiments shown in the drawings.

FIG. 2 is a partially cutaway perspective view showing a portion of the vertical grain sorter that has been improved according to the present invention. The remaining portions not shown are essentially the same as those of the prior art. The main improvement in the present invention is that a scooping tongue piece 27 is attached to the spiral blade starting end 16a of the spiral body 2 by an appropriate joining means such as screws 28 and 28. The tongue piece 27 is made entirely of a synthetic resin such as soft vinyl chloride, or is made of an elastic material such as a thin plate spring coated with a synthetic resin.
As the spiral body 2 rotates, the tip of the lower surface of the sharp tip 27a slides while pressing the top surface of the base 9, which is the bottom surface of the grain receiving section 10, with an appropriate pressing force.

Next, the effects of the vertical grain sorter according to the present invention will be explained. In the tongue piece 27, the bottom end of the sharp tip 27a is always in contact with the top surface of the base 9, which is the bottom surface of the grain section 10, so there is a gap between the tip 27a and the base 9 where the grain bites. To smoothly scoop up grains in a grain-receiving part 10 and move them onto a spiral blade 16 without grinding them or hitting them 12 without causing any problems.

As described in detail above, the vertical grain sorter according to the present invention smoothly scoops up the grains in the grain receiving part with the tongues without damaging them and moves them to the spiral head of the spiral body, and Because it is possible to scoop up all the grains inside,
It has excellent effects in maintaining grain quality and improving agricultural efficiency.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway right side view of a conventional vertical grain sorter, and FIG. 2 is a partially cutaway perspective view showing the main parts of an embodiment of the vertical grain sorter according to the present invention. be. Sorting net body...1 Spiral body...2 Grain receiving part...
・10 Spiral wing...16 Tongue...27 Fig. 2-421-

Claims (1)

[Claims] 1゜ In a vertical grain sorter in which a spiral body for lifting grains is fitted and rotated while being connected to the inside of a lower grain receiving part and an upper sorting net body, a spiral blade of the spiral body is The vertical grain is characterized in that a scooping tongue made of an elastic body is attached, and the lower end of the acute-angled tip of the tongue is brought into contact with the bottom surface of the grain receiving section. Grain sorting machine.