JPH02233185A - Vibration screen machine - Google Patents

Abstract

PURPOSE:To enhance screening efficiency by mounting a movable element having a screen net mounted thereto to the electromagnet of an electromagnetic vibrator and vibrating the movable element up and down while applying an impact to said movable element. CONSTITUTION:A drive rod 23 supporting a screen net 3' pierces a frame body 25 to be fixed to an E-shaped electromagnet 21. A coil 30 is fitted in said electromagnet around the center magnetic pole 21a thereof to be connected to an armature 29 while the armature 29 is fixed to a frame 20 fixed to the frame member 25. A gap (q) is provided between the armature 29 and the electromagnet 21 and the electromagnet 21 is vibrated in the gap (q) up and down by supplying a current to the coil 30. Further, gaps each smaller than the gap (q) is provided between the impact parts 32a, 32b provided to the electromagnet 21 and the urethane rubbers S provided to the mount members 35a, 35b of the armature 29. Therefore, the impacts of the urethane rubbers S and the impact parts 32a, 32b are given simultaneously with the up-and-down vibration of the electromagnet 21 to be transmitted to the screen net 3'. Therefore, the efficiency of the screen net is enhanced.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention connects a sieve screen stretched over a frame to a movable part of a vibrator disposed above the screen, and the movable part This invention relates to a vibrating sieve machine that vibrates a sieve screen.

[Conventional technology and its problems]

FIG. 5 shows a conventional vibrating sieve machine, which is designated as 501 as a whole and has a frame θ in the shape of a rectangular parallelepiped.
A sieve screen (3) is stretched over the screen, and a plurality of vibrators (120) are fixed to a lid member (4) covering the screen. And rod i as a movable part of these vibrators (120)
ll is fixed on the sieve screen (3). In the frame ωK, the lower transfer surface ε2 of the sieve screen (3) is the transfer section for the under-sieve material, which is conveyed to the under-sieve discharge port (61).
The material transferred over the sieve or sieve screen (3) communicates with the sieve outlet (5). A sieve material supply opening is formed at the left end of the frame θ.

The frame body ω is supported on the ground by coil springs (8) and (9). Such a vibrating sieve machine is widely known as a sheath vibrating type vibrating sieve machine, but the frame body I
are generally downwardly inclined in the direction of transport of the sieve material. Therefore, the sieve material supplied from the supply port (1 o'clock) is guided to the end of the sieve screen (3), and is transferred to the right in the υ diagram by the gravitational action due to the downward inclination. The sieve screen (3) is partially vibrated by the vibration of the screen 120), and thereby the sieve screen (3) is bent so as to perform an efficient sieving action during the transfer of the sieve material due to the action of gravity. moves to the right along the transfer surface 16 of the frame hammer,
It is discharged to the outside through the discharge port (6). Also, the top of the sieve is the discharge port (
5) is discharged to the outside.

The conventional vibrating sieve machine (50l) is constructed as described above, but in order to provide a desired transfer speed, the frame as a whole is inclined significantly downward in the transfer direction.

The larger this angle is, the higher the transfer speed will be.
As clearly shown in FIG. 5, the height H from the supply port to the ground increases.

As a result, in each factory where space is subject to various constraints, a pit is dug in some cases and the coil spring (81 (9)) is placed in the pit. Costs were rising in this case.

[Problem that the invention seeks to solve]

The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a vibrating sieve machine that can be installed at a lower height and that can further improve the sieve screen efficiency compared to the prior art.

[Means for solving problems]

The above object is to connect a sieve screen stretched over a frame to a movable part of a vibrator provided with an upper button, and to cause the movable part to vibrate the sieve screen. In the vibrating sieve machine K, the vibrator includes an electromagnet, an armature which is disposed with a gap therebetween and receives a magnetic attraction force, an electromagnet mounting member to which the electromagnet is attached, and the armature. an elastic member that connects the armature mounting member to which the armature mounting member is attached, the electromagnet mounting member and the armature mounting member, and a thrust portion on one of the armature mounting member and the electromagnet mounting member; The impulsion part is provided with an impulsion part at a distance smaller than the gap in the direction of the magnetic attraction force,
Achieved by a vibrating sieve machine, characterized in that the movable part is fixed to either the electromagnet mounting member or the armature mounting member, and a pair of vibrating motors are mounted to the frame. be done.

[For production]

A pair of vibrating electric motors causes the frame as a whole to vibrate linearly in an oblique direction, and the material on the sieve screen is conveyed by this vibration.

During this process, the movable part periodically sieves the sieve screen, making it possible to efficiently sieve even materials that were previously difficult to sieve.

Furthermore, since a reasonable material conveying force can be obtained even when the frame is horizontal, the height of the entire vibrating sieve can be made much lower than in the past.

[LOL example]

FIGS. 1 and 2 show the entire vibrating sieve machine of this embodiment, and the vibrating sieve machine is shown as a whole by (1), and its frame (
2) has a nearly rectangular shape and has a sieve screen (3)' stretched inside. A lid member (4)' is attached to the frame (2) so as to cover this. The frame body (2) is formed with an upper sieve discharge port (5Y) and a lower sieve discharge port (6)'.
) and is discharged to the outside from the under-sieve discharge port (6)'. Further, a sieve material supply port Ql) is formed at the left end of the frame (2). On the bottom of the frame (2) are a pair of left and right photographic drive mounting plates or wing plates (7) (7)
is fixed, and a pair of vibrating electric motors KαqαQ are connected to it.
is fixed. This vibration electric motor σqαQ has a known structure, and is fixed so that the rotating shaft (10b) extends perpendicularly to the desired vibration direction. A non-impingement weight (10a) is fixed to this drive shaft (10b).

Driven by a pair of vibrating electric motors αI a1, the blade plate (7)
As shown in (7), it is configured to generate linear vibration in the direction of arrow a. The frame body (2) is supported on the ground by a coil spring (8γ(9)'. This allows the p frame body (2) to be installed horizontally. Also, the lid member (
4)'Upper K has a plurality of electromagnetic vibrators fixed in an arrangement as shown in FIG. This will be explained below with reference to FIGS. 3 and 4.

The cup-shaped frame circle of the electromagnetic vibrator 4 is fixed to its 7 flange portion (20a) and the lid member (4)'K by bolts 14z. A thrust-type vibration drive unit according to the present invention is built inside this. A hole is formed in the lid member (4)', through which a driving rod serving as a movable part is inserted, and a screw is cut at the lower end of the hole so that a rear plate member ■α is inserted.
It is fixed to the sieve screen (3)' by clamping the sieve screen (3)' with the sieve screen (3)' and tightening the nut @. Further, the portion of the rod dom that passes through the hole G is covered with a rubber dust cover.

An E-shaped electromagnet C21+ whose shape is clearly shown in FIG. 4 is fixed to the upper end of the drive rod dom. A coil (2) is fitted around this central magnetic pole (21a), and this is fixed to an armature (2), which is fixed to the frame (A) by a bolt (43).

Two pairs of plate spring mounting supports (44a) (44a) are attached to the armature.
), (44b) (44b) (see Figure 3) are fixed, and at the lower end of this are stacked leaf springs (311 ({υ), both ends (31a) (31a), (3lb) (3lb) Bolt (46a) (46a), (4sb) (46b) Ic
It's fixed. The upper end of the above-mentioned drive rod is screwed onto the base (2lb) of an E-type electromagnet r2D and is fixed to the upper end thereof with a nut 4η. On both side walls of the electromagnet U, protrusions (3
2a) (32b) are integrally formed, and there is a gap i formed between the magnetic pole and the armature of the electromagnet Qυ.
Yop is urethane rubber (34a) with a small gap S (
34b) are attached to the mounting members (35a) and (35b). The mounting members (35a) (35b) of the urethane rubber (34a) (34.b) are attached to the screw member 5 [through the nut 6υ].
It is fixed to the K-yoko armature field. Also, the protrusion (32a
) (32b) is sandwiched between the mounting plates (33a) and (33b) at the center of the stacked plate spring (311 131J) and fixed thereto.The embodiment of the present invention is constructed as described above. This effect will be briefly explained.

Electromagnets as shown in Figures 3 and 4 are arranged on the K cover (4y) as shown in Figure 2, and an alternating current is applied to the coil in each electromagnetic vibrator (self). When energized, an alternating magnetic attraction force is generated between the electromagnet and the armature cl!!J, which causes the drive ay to move in the vertical direction K.
Vibrate. As a result, the sieve screen (3)' can be directly imaged at each part, and the urethane rubber (34a) (34
b) and the sieving portions (32a) and (32b) vibrate the sieve screen (3)' with a sieve force and apply a sieve force. Therefore, even the material under the sieve, which is extremely difficult to sieve, can be efficiently passed through the mesh by this thrusting force. In addition, by driving a vibrating electric motor (10 units), a thousand line weights (10
Due to the rotation of a), a pair of vibration electric motors α0αO
A linear vibration force in the direction K is applied to the frame (2) K, so that the sieve screen (3)' and the material on the sieve and under the sieve on the transfer surface (41) move in the jump motion due to the vibration K in FIG. 1K. It is transferred to the right and discharged to the outside through the discharge ports (5Y and (6)').

The embodiment of the present invention operates as described above, but
This has the following effects.

In this embodiment, as shown in FIG.
A linear vibration force in the direction is applied, and a vibration-induced transport force is applied to the material on the sieve screen (3)' and the transport surface 41).

Therefore, in the past, the transfer force of gravity was used by downward inclination, but in this embodiment, by linear vibration in the direction a, and by appropriately selecting the magnitude, the under-sieve and sieve material are transferred at the desired transfer speed. Can be transported.

Furthermore, according to this embodiment, urethane rubber (34a) (34b
) and a pair of thrust parts (32a) (
32b), this impact force becomes W
．． It is transmitted to various parts of the sieve screen (3)' through the moving rod G,
Materials that are difficult to sieve can be efficiently sieved.

Furthermore, since the vibration conveying force can be utilized by the vibration electric motor αQαQ, it is possible to arrange the apparatus horizontally, and the height of the entire apparatus can be made much lower than that of the conventional apparatus. Therefore, it can be installed without any problem even in buildings where height is limited.

Embodiment K of the present invention has been described above, but of course, various modifications can be made based on the technical idea of the present invention.

For example, in the above embodiment, in an electromagnetic motor (own), the coil (2) is fixed to the armature, and a gap (i) is left between the armature and the coil (2) is fixed to the armature.
Type electromagnet C! υ was arranged and attached to the drive rod a as a movable part, but this was reversed and the armature 4 was fixed to the drive rod and the E-shaped electromagnet Qυ was fixed to the frame rod. You can. In other words, in this case, the armature will vibrate.

Further, in the above embodiment, an E-type electromagnet Qll was used, but of course, a conventionally known electromagnet such as U
type electromagnets may also be used. In addition, although urethane rubber (34a) (34b) was used as the impact part, the impact force can be adjusted using this (for example, by changing the size, thickness, and area of the gap S). Alternatively, the mounting portions (35a) (35b) may be directly pressed against the pressing portions (32a) (32b) of a metal electromagnet.

In addition, in the above embodiment, a pair of wing plates (
7] (The force was applied and the vibrating electric motor αQα0 was fixed to it, but instead of this, a pair of vibrating electric motors were fixed on the rear end face of the frame (2), that is, on the left end face K in Fig. 1. You may also do so.

〔Effect of the invention〕

As described above, according to the vibrating sieve of the present invention, the height can be made much smaller than conventional ones, and the sieving efficiency can be further improved.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of a vibrating sieve machine according to an embodiment of the present invention, Fig. 2 is a partially cutaway plan view, Fig. 3 is an enlarged sectional view of the electromagnetic vibrator in Fig. 1, and Fig. 4 is a Fig. 3 ff-IV in K
The linear sectional view and FIG. 5 are side sectional views of a conventional vibrating sieve machine. In addition, in Figure K,

Claims (1)

[Claims] A vibrating sieve machine in which a sieve screen stretched over a frame is coupled to a movable part of a vibrator disposed above the sieve screen, and the sieve screen is vibrated by the movable part. ,
An armature which is arranged with a gap therebetween and receives a magnetic attraction force, an electromagnet mounting member to which the electromagnet is mounted, an armature mounting member to which the armature is mounted, and the electromagnet mounting member. An elastic member that connects the armature mounting member to the armature mounting member, a thrusting portion on one of the armature mounting member and the electromagnet mounting member, and a thrusting portion on the other of the armature mounting member and the electromagnet mounting member. An impacted part is provided at a distance smaller than the air gap, the movable part is fixed to one of the electromagnet mounting member and the armature mounting member, and a pair of vibration electric motors are mounted on the frame. A vibrating sieve machine characterized by being attached.