JPH0685073U - Vibrating sieving machine - Google Patents

Abstract

(57) [Summary] [Purpose] To facilitate replacement of the screen of the vibrating screener. [Structure] A lower sieving chamber 19 and an upper sieving chamber 21 are arranged in an overlapping manner on a vibrating table 9 connected to a vibration generator, and a flange 36 at the upper end of the lower sieving chamber 19 and a flange 43 at the lower end of the upper sieving chamber 21 are arranged. Sieve screen 2 which divides both chambers 19 and 21 between
In the vibrating sieving machine in which 5 is sandwiched, a reinforcing frame 40 is provided on the peripheral edge of the screen 25, inclined surfaces inclined in the same direction are provided on opposite surfaces of both flanges 36 and 43, and the reinforcing frame 40 is provided outside thereof. Is provided, and the outer surfaces of both flanges 36 and 43 are tapered surfaces 42 and 46 that are narrowed outward, and between the opening edges of the tightening ring 47, which is partially cut in a V-shaped cross section. Tapered surfaces 42 and 46 of both flanges
Was clamped and the portions between the slits were tightened by the tightening screws 32 and 33.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vibrating sieving machine that applies vibration to a screen by an electric exciter.

[0002]

[Prior art]

 A vibrating and sieving machine, in which a lower sieve compartment and an upper sieve compartment located above it are installed on a vibrating table that is connected to a vibration generator and is forcibly given a vibration, and a mesh screen is provided at the boundary of both sieve compartments Are known. Usually, the sieve mesh is sandwiched between a lower flange provided at the upper end of the lower sieving chamber wall and an upper flange provided at the lower end of the upper sieving chamber wall.

FIG. 2 shows an example of a sandwiching structure of the above-mentioned sieve mesh. The lower flange 53 welded to the upper end of the chamber wall 52 of the lower sieve separating chamber 51 has an annular V-shaped groove 54 on the upper surface, and the upper sieve is The upper flange 57 welded to the lower end of the chamber wall 56 of the compartment 55 has a V-shaped annular protrusion 58 on the lower surface. When the peripheral edge portion of the sieve net 59 is sandwiched between both flanges 53 and 57 and both flanges 53 and 57 are tightened by a large number of bolts 60 and nuts 61, the sieve net 59 is pushed into the annular V-shaped groove 54 by the annular protrusion 58. Rarely, this causes the screen 59 to be tensioned.

[0004]

[Problems to be solved by the device]

 In the screen mesh mounting structure shown in Fig. 2, a large number of bolts and nuts must be manipulated when replacing the screen screen, so it is necessary to disassemble and clean it, or to replace it with a screen screen with different eye sizes, or if it is damaged. It was extremely troublesome to replace the sieve screen with a new one. The present invention makes it possible to easily perform such disassembly and replacement of the sieve screen.

[0005]

[Means for Solving the Problems] A vibrating sieving machine according to the present invention is a sieve having outwardly extending flanges at the upper end of the lower sieving chamber wall and the lower end of the upper sieving chamber wall, and having a reinforcing frame at the periphery. The net is sandwiched between the above flanges. Each of the flanges has an inclined surface inclined in the same direction toward the inner side of the surfaces facing each other, and a pocket for receiving the reinforcing frame of the sieve mesh on the outside of the inclined surface.

A tapered surface inclined downward is formed on the upper surface of the flange located above, and a tapered surface inclined upward is formed on the lower surface of the flange located below. An opening edge of a tightening ring having a V-shaped cross section, which opens inward, is in contact with these tapered surfaces. The fastening ring is partially cut and has a fastening screw between both cutting ends.

[0007]

[Action]

 Insert a sieve mesh between two flanges, fit a tightening ring across both flanges, and tighten the tightening screw. The diameter of the tightening ring decreases and its opening edge becomes deeper in the tapered surface of the flange. The two flanges are engaged with each other, so that the two flanges are pressed against each other. As a result, with the reinforcing frame being held in the pocket between both flanges, the inner part of the screen is stretched by the inclined surfaces of both flanges, and the entire screen becomes tense.

As described above, since both flanges can be tightened only by operating the screw of the tightening ring, the operation is much simpler than the conventional device that tightens a large number of bolts and nuts, and cleaning is easier. Can be disassembled and assembled, or replaced with a sieve screen having different mesh sizes. If the sieve screen becomes loose during use, the screw of the tightening ring can be tightened to recover the tension.

[0009]

【Example】

 In FIG. 1, a substrate 1 has anti-vibration rubber blocks 2, 2, ... On its lower surface, and a cylindrical vibration chamber wall 4 surrounding a vibration chamber 3 on its upper surface. A part of the vibration chamber wall 4 is cut off, and the drive motor 5 is supported by the support plate 6 on the part. At a portion near the upper end of the oscillating wall 4, there is a flange 7 protruding outward.

A vibrating table 9 is supported on the flange 7 by the ribs 8, 8 ... The vibrating table 9 supports a bearing structure 10 at the center, and a vibrating shaft 11 supported by the vibrating table 9 has eccentric weights 12 and 13 near the upper end and the lower end, respectively. The lower end of the oscillating shaft 11 is connected to the shaft of a pulley 15 which is borne by the substrate 1 by a spring joint 14. The pulley 15 is rotated by a pulley 17 provided on a shaft 16 of the motor 5 via a belt 18.

A cylindrical lower sieving chamber wall 20 that surrounds the lower sieving chamber 19 is provided on the upper surface of the vibrating table 9, and a cylindrical upper sieving chamber wall 22 that surrounds the upper sieving chamber 21 is coupled to the upper end thereof. ing. The lower sieving chamber 19 has an insole 23 having a mountain-shaped height in the center, the periphery of the insole 23 is connected to the lower sieving chamber wall 20, and the outlet 24 is located above the insole 23 to form a chamber wall 20. It is open to.

The peripheral portion of the metal mesh 25 that divides the chambers 19 and 21 is clamped at the joint between the lower sieving chamber wall 20 and the upper sieving chamber wall 22, and this clamping structure will be described later. explain in detail. A discharge port 26 is opened at the bottom of the upper sieving chamber wall 22. Rubber tapping balls 27, 27 ... Are placed on the wire net 25.

The upper sieving chamber wall 22 has a flange 28 protruding outward at the upper end, on which a lid 29 is placed, and the flange 28 and the lid 29 are formed by a fastening ring 30 having a V-shaped cross section. Are united. As shown in an enlarged view in FIG. 1C, the tightening ring 30 is partially cut and has arms 31 and 31 at the cut ends, and a screw 32 and a nut 33 that penetrate the arms 31 and 31. By tightening and, the diameter is reduced and the flange 28 and the lid 29 can be tightened. Reference numeral 34 is an inlet provided in the center of the lid 29.

FIG. 1B is an enlarged view of a portion inside a circle 35 drawn by a dotted line in FIG. A flange member 36 that spreads outward is welded to the upper end of the lower sieving chamber wall 20. On the upper surface of the flange member 36, a concave groove 38 for accommodating the annular rubber packing 37 is provided on the innermost side, a descending inclined surface 39 is formed on the outer side thereof, and a peripheral reinforcing frame 40 of the wire mesh 25 is formed on the outer peripheral portion. A pocket 41 for accommodating is formed, and a taper surface 42 is formed on the lower surface to become thinner toward the outside.

A flange member 43 that extends outward is also welded to the lower end of the upper sieving chamber wall 22, and its outer diameter is equal to that of the flange member 36. On the lower surface of the flange member 43, a descending inclined surface 44 having the same angle as the descending inclined surface 39 is formed on the inner side, a pocket surface 45 cooperating with the pocket 41 is formed on the outer side, and the upper surface is directed outward. A taper surface 46 that is thin and thin is formed. Then, the flange members 36 and 43 are fastened to each other by a fastening ring 47 having the same structure as the fastening ring 30.

In the connection structure of the lower sieving chamber wall 20 and the upper sieving chamber wall 22 described above, the wire mesh 25 is initially flat and the periphery is reinforced by the reinforcing body 40. As shown in FIG. 1 (b), the wire mesh 25 is placed on the flange member 36, the flange member 43 is placed thereon, and the tapered surfaces 42 and 46 are brought into contact with the claws 48 and 48 at both blade ends of the tightening ring 47. When the tightening ring 47 is tightened in contact with the wire mesh 25, the wire mesh 25 is stretched along the descending inclined surface 39 to generate tension, and as a result, the wire mesh 25 is supported in a state where it is not loose at all.

Even when the wire mesh 25 is loosened during use, the loosening of the wire mesh 25 can be removed by tightening the screw 32 and the nut 33 of the tightening ring 47 shown in FIG. 1C. The rubber packing 37 is provided to prevent the wire mesh 25 from being damaged by friction during the sieving operation.

[0018]

[Effect of device]

 As is apparent from the above embodiments, according to the present invention, the sieve mesh can be attached in a tensioned state only by operating the V-shaped fastening ring, so that disassembly and assembly for cleaning and the size of the eye are different. It can be easily replaced in a short time with a mesh screen for replacement, or when it is broken.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention, an enlarged sectional view of a sieve mesh mounting portion, and a partially enlarged plan view of a tightening ring.

FIG. 2 is an enlarged cross-sectional view of a screen mesh attachment portion in a conventional vibrating screener.

[Explanation of symbols]

 3 Vibration Chamber 5 Drive Motor 8 Support Spring 9 Shaking Table 11 Vibration Shafts 12 and 13 Eccentric Weight 19 Lower Sieve Chamber 20 Same Room Wall 21 Upper Sieve Room 22 Same Room Wall 25 Sieve Net 32 Tightening Screw 47 Tightening Ring 47 Tightening Screw 36 Lower Flange 39 Inclined surface 40 Reinforcement frame 41 Pocket 42 Tapered surface 43 Upper flange 44 Inclined surface 46 Tapered surface 47 Tightening ring

Claims (1)

[Scope of utility model registration request] 1. A vibrating table connected to a vibration generator,
Provided are a lower sieving chamber surrounded by a cylindrical chamber wall, an upper sieving chamber located above the lower sieving chamber and surrounded by the cylindrical chamber wall, and a sieving network separating the two sieving chambers. In the vibrating sieving machine, a lower flange and an upper flange of the same diameter, which project outward, are provided at the upper end of the lower sieve compartment wall and the lower end of the upper sieve compartment, respectively, and an annular reinforcing frame is provided at the periphery of the sieve mesh. Provided on the upper surface of the lower flange and on the inner surface of the lower surface of the upper flange are inclined surfaces inclined in the same direction, and a pocket for accommodating the reinforcing frame is provided outside the inclined surface between the flanges. The bottom surface of the lower flange is provided with a taper surface that rises toward the outside, and the top surface of the top flange is provided with a taper surface that descends toward the outside.
The opening edge of the tightening ring, which has a letter-shaped cross section and is formed by cutting in part, is joined by a tightening screw between the cut ends, of the flanges holding the sieve mesh between them. A vibrating and sieving machine characterized in that the tightening screw is tightened in a state of being in contact with each tapered surface to press the sieve mesh between the flanges.