JPH078915A - Up-and-down movable sieving machine - Google Patents

Abstract

PURPOSE:To easily change separation and classification capacity by providing a sieving machine main body with a roller follower and moving the roller follower up and down by a cam. CONSTITUTION:When a cyclo-speed reducer 5 is stated and a perticulate is supplied into a sieving machine main body, a roller follower 2 is moved up and down with the rotation of a cam 4 and the sieving machine body 2 is moved up and down centering around a shaft 6 to perform the classification of the perticulate. The outer periphery of the cam 4 is formed so as to have a smooth curved surface to moderate the impact of the sieving machine main body. Since the angle of inclination of the sieving machine main body 1 is changed even if the length of leg parts 3 is controlled when classification capacity is altered, classification capacity can easily be adjusted. By this constitution, separation and classification capacity can easily be changed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sifter used in a separation and classification process of powder and granules.

[0002]

2. Description of the Related Art A typical industrial sieving machine currently in practical use in separating and classifying powder and granules is called a vibrating system, in which a vibrating motor such as a Eurus motor gives forced vibration to the sieve body for classification. To do.

However, in addition to the noise of the vibration motor itself, the conventional sieving machine of this type is very noisy due to the impact noise of the material hitting the inner surface of the sieve due to the forced vibration and the noise of the tapping device for preventing clogging. Become. Further, applying the forced vibration with the vibration motor is to create a forced unbalanced state, so that there is a drawback that a local force is applied to a part of the device and the device is easily broken.

In addition, when adjusting the separation and classification ability,
It has to be readjusted from the drive unit, which is troublesome. Further, when designing the device, resonance design is indispensable, and difficult and complicated calculations are required.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a sieving machine which is low in noise, rich in durability, and easy to adjust the separation and classification ability, and which can be easily designed. The task is to do.

[0006]

In order to achieve the above object, the present invention provides a vertically moving sieve characterized in that a roller follower is provided in a main body of a sieving machine, and the roller follower is vertically moved by a cam. On the plane.

[0007]

Since the sieving machine of the present invention is constructed as described above, the rotation of the cam causes the roller follower to move up and down, which in turn causes the sieving machine body to move up and down. Objects are classified.

At this time, since the force is smoothly transmitted by the cam and the roller follower, noise is considerably reduced, and an unreasonable force may act on a small part of the device as in the conventional vibration system. Since it does not exist, the durability is greatly improved. Moreover, the separation and classification ability can be changed only by changing the inclination angle of the sieve body. In addition, the design does not require a resonance design, and thus can be designed very easily.

[0009]

Embodiments of the present invention will be described below with reference to the perspective view of FIG. In the figure, reference numeral 1 denotes a sieving machine main body, and an inner bottom surface of the sieving machine main body 1 is formed with a mesh so as to be capable of sieving powder and granular materials. Reference numeral 2 denotes a roller follower, which is connected to the sieving machine main body 1 via the leg portion 3. A cam 4 is provided so as to contact the roller follower 2 and support the roller follower 2 from below. Reference numeral 5 denotes a cyclo speed reducer, which can rotate the cam 4 via a sprocket and a roller chain. A rotatable shaft 6 is provided near the lower end of the sieving machine body 1 so as to serve as a fulcrum when the sieving machine body 1 moves up and down.

Since the apparatus of the present invention is constructed as described above, if the cyclo reducer 5 is started and powdery particles are supplied into the main body 1 of the sieving machine, the roller follower 2 moves up and down as the cam 4 rotates. However, since the sieving machine main body 1 moves up and down with the shaft 6 as a fulcrum, classification of powdery or granular material is performed. The outer periphery of the cam 4 is formed into a smooth curved surface, and the impact of the sieving machine body 1 is softened. In addition, when changing the classification ability, if the length of the leg portion 3 is adjusted, the inclination angle of the sieving machine body 1 is changed, so that the adjustment can be easily performed.

[0011]

EFFECT OF THE INVENTION The sieving machine of the present invention has a very low noise, excellent durability, a very simple structure and easy to design as compared with the conventional vibrating system, and also has an easy separation and classification ability. Can be changed to.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

[Explanation of symbols]

 1 Sieving machine main body 2 Roller follower 3 Leg 4 Cam 5 Cyclo reducer 6 Axis

Claims (1)

[Claims] 1. An up-and-down moving screener characterized in that a roller follower is provided on a screen body, and the roller follower is moved up and down by a cam.