JPS6139869B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tumbler sieve used for separating, sorting, sorting, etc. of powder and granular materials.

Conventional tumbler sifting machines were only capable of two-dimensional movement in the horizontal plane.
The operating rate was poor, and there were also cases where separation and classification could not be performed depending on the type of powder or granules.

This invention solves the above-mentioned difficulties of the conventional example, and its purpose is to change the eccentricity of the main shaft and the inclination angle between the main shaft and the main swing axis to create a three-dimensional image in the vertical and horizontal planes. The purpose of the present invention is to provide a tumbler sifting machine that enables flexible movement and can adjust the movement of a screen body depending on the type of powder or granular material.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of a tumbler sieve machine according to the present invention will be explained below with reference to the drawings showing embodiments thereof.

The tumbler sifter of the present invention comprises a main base 1 and a circular screen body 4 having screen decks 3, 3' each having a screen 2 for sifting powder and granules.

The main base 1 includes an upper bearing plate 5,
A main shaft 7 with a counterweight 6 is housed in roller bearings 8, 8' and is driven by an electric motor 10 via a V-belt 9 whose speed is adjustable.

The larger pulley 11 of the V-belt 9 is equipped with a balancing device 12 to reduce longitudinal and lateral forces.

The screen body 4 having a unit structure is vibrated by a drive mechanism 14 surrounded by a guard ring 13. This drive mechanism 14 connects a main swing shaft 15 to an adjustment plate 16 and an upper bearing plate 5.
It has a structure in which it is connected to the main shaft 7 via. Further, the screen body 4 is fixed so as not to rotate by a rubber element 17 joined to the main base 1.

This screen body 4 has an adjustment plate 16
Bearings 18, 18' of the main idler shaft 15 connected to
bottom cylinder 19 containing
0,20',20'', screen deck 3,3',
It consists of an intermediate ring 21 with an outlet and a hood 23 with a central inlet stud 22.

The bearing 18' of the main idler shaft 15 is provided with a nut 24 for adjusting the play, and an upper cover 25 is attached above the nut 24.

In addition, 26 is a hood 23, a screen deck 3,
3', a tightening screw for connecting the intermediate ring 21;

The upper bearing plate 5 and adjustment plate 16 of the drive mechanism 14 are connected by hexagonal nuts 27 and 27', and an eccentricity adjustment screw 28 is attached to the end of the upper bearing plate 5 to move the adjustment plate 16. In addition, an inclination adjustment screw 29 is attached to the adjustment plate 16 so that the adjustment plate 16 can be pushed up from the upper bearing plate 5 to change the inclination angle.

Since the tumbler sieve machine of the present invention is constructed as described above, when the electric motor 10 is driven, the screen body 4 fixed so as not to rotate by the rubber element 17 moves the main shaft 7 about the main idler shaft 15. It moves both horizontally and vertically depending on the

This movement of the screen body 4 simultaneously causes the action of moving the powder and the movement of the powder to the outer periphery.

The horizontal movement and the speed at which the powder and granules are sent to the screen decks 3 and 3' are adjusted by changing the eccentricity of the main shaft 7 and the inclination angle between the main shaft 7 and the main floating shaft 15, depending on the type of powder and granular material. High production capacity and optimal separation can be achieved.

Changing the speed of horizontal movement of the screen decks 3, 3' is carried out by adjusting the eccentricity to a smaller or larger radius. Generally speaking, the larger the radius, the faster the processing speed of powder or granules. Therefore, depending on the type of powder to be sorted, the smaller the radius, the more effective the separation can be.

Therefore, in order to adjust the eccentricity, remove the guard ring 13 and tighten the hexagonal nuts 27, 27' connecting the upper bearing plate 5 and the adjustment plate 16.
loosen. Then, the eccentricity adjusting screw 28 is adjusted, and the hexagonal screws 27, 27' are tightened again to reinstall the guard ring 13.

When the main floating shaft 15 is tilted with respect to the main shaft 7, the screen body 4 moves vertically.

If this angle of inclination is too large, the speed at which the powder and granules are discharged becomes faster, and if the angle of inclination is too small, the powder and granules remain on the screen decks 3 and 3' for a long time. Adjust the inclination angle so that the powder and granules are correctly distributed on the screen decks 3, 3' and form an almost flat mat shape with a slight bulge toward the outer periphery.

Therefore, the inclination angle between the main shaft 7 and the main idler shaft 15 is adjusted as follows.

Remove the guard ring 13, and tighten the hexagonal nut 27,
Loosen 27'. Then, by tightening or loosening the inclination adjusting screw 29, the tendency can be changed.
In the embodiment, turning the inclination adjustment screw 29 to the right increases the radius angle, and turning it to the left decreases the radius angle.

The inclination angle is adjusted by inserting a thin plate or driving a wedge between the upper bearing plate 5 and the adjustment plate 16 at the hexagonal nut 27 position.

As described above, the tumbler sieve machine of the present invention has the eccentricity of the main shaft 7 and the main shaft 7 and the main idler shaft 15.
By changing the inclination angle between the screen body and the screen body, three-dimensional movement in vertical and horizontal planes is possible, and the movement of the screen body can be adjusted depending on the type of powder or granular material.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of a tumbler sieve according to the invention, FIG. 2 is a longitudinal sectional view of the tumbler sieve, and FIG. 3 is an enlarged explanatory view of the drive mechanism. 5... Upper bearing plate, 7... Main shaft, 14...
...Drive mechanism, 15... Main swing shaft, 16... Adjustment plate, 27, 27'... Hexagonal nut, 28...
Eccentricity adjustment screw, 29...Inclination adjustment screw.

Claims (1)

[Claims] 1. In a tumbler sieving machine in which the screen body 4 is vibrated by a drive mechanism 14 surrounded by a guard ring 13, the drive mechanism 14 connects the main idler shaft 15 to the adjustment plate 16 and connects the main shaft 7 to the main shaft 7 via the upper bearing plate 5. The upper bearing plate 5 and adjustment plate 16 are connected with the hexagonal nut 2.
7 and 27', an eccentricity adjustment screw 28 is attached to the end of the upper bearing plate 5, and an inclination adjustment screw 29 is attached to the adjustment plate 16.