JP2003001193A - Vibrating sieve machine - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a vibration sieving machine which can eliminate the possibility of mixing wear powder into a material and can surely prevent clogging of a sieving net. A support fixed to an inner peripheral surface of a net frame.
Ring 1 so that it contacts the lower surface of sieve mesh 10
A vibrating body 16 that supports the weight 4 and encapsulates a weight 17 therein so as to freely move up and down is fixed to the ring, and the vibrating container 2 vibrates to move the weight to the inner surface of the vibrating body. And the impact was transmitted to the sieve net.
The vibrator is detachably fixed to the lower surface of the ring, and a rubber lining 20 is provided on the inner surface of the vibrator and / or the surface of the weight.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibrating and sieving machine for sieving, mixing, stirring, and crushing various powders, granules, etc. by vibrating a vibrating container having a sieve screen stretched by a motor. Is.

[0002]

2. Description of the Related Art As is well known, for example, a circular vibrating sieving machine supports a cylindrical vibrating container having a bottom with a plurality of coil springs on a base, and a vibrating motor is fixed at the center of the lower part of the vibrating container. It is provided by laying a sieve net such as a wire net in the vibration container and has been widely used for sieving, mixing and crushing materials such as foods, chemicals and various industrial raw materials. .

[0003]

By the way, in this type of vibrating sieving machine, conventionally, in order to prevent the sieve mesh from being clogged, a perforated plate is horizontally stretched below the sieve mesh at appropriate intervals. Install a rubber ball called tapping rubber between the perforated plate and the sieving net and vibrate the rubber ball up and down by the vibration of the vibrating sieving machine to drop the clogging by colliding with the sieving net. However, there is a drawback that the rubber ball is worn by the impact and becomes powder and is mixed into the material. It should be noted that the metal balls could not be used because they would damage the sieve net by collision. Therefore, the present invention is intended to provide a vibrating and sieving machine capable of reliably preventing clogging of the sieving net without the possibility of mixing abrasion powder into the material.

[0004]

To this end, the vibrating and sieving machine of the present invention supports a ring so that it comes into contact with the lower surface of the sieving net by means of a support fixed to the inner peripheral surface of the net frame, and the weight is moved up and down inside. A vibrating body enclosed so that it can move freely is fixed to the ring, and when the vibrating container vibrates, the weight collides with the inner surface of the vibrating body so that the impact is transmitted to the sieving net. It is characterized by having done. Further, the present invention is characterized in that, in the above vibrating and sieving machine, a vibrating body is detachably fixed to the lower surface of the ring. Further, the present invention is characterized in that, in the above-mentioned vibrating screener, a rubber lining is applied to an inner surface of the vibrating body and / or a surface of the weight.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a longitudinal sectional view of the whole of the vibrating and sieving machine according to the present invention, in which 1 is a base, 2 is a bottomed cylindrical vibrating container supported by a coil spring 3 on the base, and The container 2 comprises a lower container 2a and an upper container 2b which are detachably joined by a metal band 4. Reference numeral 5 is a vibration motor fixedly mounted on the lower container 2a, and reference numerals 6 and 7 are unbalanced weights attached to the motor shafts.

Reference numeral 8 denotes a ring-shaped mesh frame composed of a square tube sandwiched between the lower container 2a and the upper container 2b. As shown in the enlarged view of FIG. The sieving net 10 is stretched tightly inside the net frame by adhering the peripheral edge of the net 10 with the adhesive 9.

A base portion 12 formed by bending a flat bar into a U-shape on the inner peripheral surface of the mesh frame 8 below the sieving mesh 10 is fixed by welding at appropriate intervals, and the base frame portion is composed of the flat bar. A ring 14 formed of a hollow cylinder (square cylinder) at the tip of the support 13 is fixed radially by welding.
Is supported, and the upper surface of the ring is brought into contact with the lower surface of the sieving net 10 and bonded by the adhesive 15.

Reference numeral 16 designates four vibrating members which are fixed to the lower surface of the ring 14 at equal intervals in a hanging shape. Each of the vibrators is
A weight 17 is enclosed in a metal cylindrical airtight container so that it can move freely up and down, and a screw shaft 18 protruding from the upper end is attached to a nut 19 fixed to the lower surface of the ring 14 by welding. Each of them is detachably fixed by screwing. A rubber lining 2 is provided on the inner surface of the vibrating body 16.
0 is given.

Reference numeral 21 is a cover plate, 22 is a material charging port, and 2
3 is a discharge port formed on the side wall of the upper container 2b, and 24 is a discharge port formed on the side wall of the lower container 2a.

In the vibrating and sieving machine configured as described above, the material such as the powder loaded on the sieving net 10 is sieved by vibrating the entire vibrating container 2 by the operation of the vibrating motor 4, and the material dropped from the mesh. Is discharged from the discharge port 24. Further, the material remaining on the mesh moves to the outer peripheral direction of the sieving mesh with the vibration and is discharged from the discharge port 23.

As the vibrating container 2 vibrates, the weight 17 in the vibrating body 16 fluctuates vertically and collides with the inner surface of the vibrating body, and the impact is transmitted to the sieving net 10 via the ring 14. Therefore, the material adhering to the sieving net 10 is sieved off to prevent clogging. It should be noted that rigidity is obtained by supporting the ring 14 by forming the base portion 12 and the support 13 by using the flat bar vertically, and the ring 14 can be sufficiently vibrated with the vibration of the vibrating container 2. .

Further, since the inner surface of the vibrating body 16 is rubber-lined, the noise generated when the weight 17 collides with the vibrating body 16 is reduced and the abrasion thereof is prevented. The rubber lining for this purpose may be provided on the surface of the weight 17.

Further, since the impact of the vibrating body 16 is transmitted to the sieving net 10 via the ring 14 supported in the center of the vibrating container 2, the material adhering to the sieving net 10 is effectively sifted and clogging is eliminated. It can prevent very effectively.

Since the weight 17 is enclosed in the vibrating body 16, the rubber lining and the weight 17,
Even if the inner surface of the vibrating body or the like is worn, there is no possibility that the abrasion powder will go out and be mixed into the material. Therefore, sieving, mixing, crushing, etc. can be performed while keeping the desired purity without mixing foreign matter into the material.

Further, the vibrating body 16 is detachably fixed to the lower surface of the ring 14, and when abrasion is caused by an impact, the nut 19 and the screw shaft 18 can be easily replaced by removing the screw from each other. Is also easy.

[0016]

As described above, the vibrating and sieving machine of the present invention is
The ring is supported so as to abut the lower surface of the sieving net by a support fixed to the inner peripheral surface of the mesh frame, and a vibrating body enclosed so that the weight can be freely moved up and down is fixed to the ring. By vibrating the vibrating container, the weight collides against the inner surface of the vibrating body and the impact is transmitted to the sieving net, so there is no risk of mixing the abrasion powder generated by the collision into the material. , It has a beneficial effect of surely preventing clogging of the sieve mesh.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of a vibrating screener according to the present invention.

FIG. 2 is a partial cross-sectional plan view of the sieving net of the vibrating sieving machine shown in FIG.

3 is a sectional view taken along the line AA of FIG.

[Explanation of symbols]

1 base 2 vibration vessels 2a Lower container 2b Upper container 5 Vibration motor 8 mesh frame 10 sieving net 13 Support 14 ring 16 Exciter 17 Weight 18 screw shaft 19 nuts 20 rubber lining

Claims (3)

[Claims] 1. A vibrating body in which a ring is supported by a support fixed to an inner peripheral surface of a mesh frame so as to abut against a lower surface of a sieving mesh, and a weight is enclosed inside so as to freely move up and down. A vibrating and sieving machine characterized in that it is fixed to a ring, and when the vibrating container vibrates, the weight is made to collide with the inner surface of the vibrating body so that the impact is transmitted to a sieving net. 2. The vibration sieving machine according to claim 1, wherein the vibrating body is detachably fixed to the lower surface of the ring. 3. The vibrating screener according to claim 1, wherein the inner surface of the vibrating body and / or the surface of the weight has a rubber lining.