JPH09169426A - Device for supplying powder/grain material including cotton-like material or powder/grain material hardly scatterable - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for supplying the powder/grain material, which includes the cotton-like material, or the powder/grain material hardly scatterable so as to evenly scatter the powder/grain material, which includes the cotton-like material. SOLUTION: Powder-grain material, which includes the cotton-like material, is supplied from a hopper 10 to a transferring passage 34 of an electromagnetic oscillating feeder 11. The powder/grain material is fed left in the figure by the oscillation in the arrow (a) direction. On the way of transference, the powder/grain material is spread in the cross direction of the transferring passage 34 by a brush roller 36 provided in the upstream side, and furthermore, compressed by a rubber roller 38 provided in the downstream side, while drawn in the cross direction. Thereafter, the powder/grain material falls onto a screen of an oscillating screen feeder 12 provided under the transferring passage 34, and the powder/grain material is evenly scattered downward by an upper and a lower stage parts 15a, 15b of the screen by the straight oscillation of a pair of oscillating motors 35a, 35b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for supplying a powdery material containing a cotton-like substance or a powdery material which is hard to be scattered.

[0002]

2. Description of the Related Art A powdery material containing a cotton-like substance, for example, a cement material mixed with a cotton-like substance such as cotton torn, is used as a building material such as an exterior material of a house by burning and hardening it. When transferring such a powdery or granular material to the baking step, the powdery or granular material must be dispersed as evenly as possible. Conventionally, a spraying device 1 as shown in FIG. 11 is known. There is. This is to supply the above-mentioned powdery material 5 to the upstream end of the belt conveyor 2 from a supply hopper (not shown), and to convey the belt conveyor 2 to the downstream end thereof around the axis 3 which is shown in a simplified manner. The device is rotated by a predetermined angle as indicated by a chain line and a chain double-dashed line, and the material is distributed over the wide width of the wide supply belt conveyor 4 arranged below and is supplied. The belt conveyor 2 to which the material is supplied from a hopper (not shown) swings around the shaft 3 as described above, whereby the material continuously supplied from the hopper is spread on the wide supply belt conveyor 4. Supplied.

However, since the material 5 is supplied from the belt conveyor 2 in a state where it is not sufficiently dispersed as shown in the figure, the material 5 is supplied in the form of a lump 5a in the next step. Therefore, it cannot be said that the material 5 is uniformly dispersed.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and provides a material as described above, that is, a cotton-like material capable of supplying a granular material containing the cotton-like material in a substantially uniform manner. An object of the present invention is to provide a supply device for a powdered or granular material containing or a powdered or granular material that does not easily come apart.

[0005]

Means for Solving the Problems The above problems are provided by a supply means for supplying a granular material containing a cotton-like substance, and a first vibrating feeder supplied with the granular material containing the cotton-like substance from the supplying means. And a second vibrating feeder disposed below the first vibrating feeder and having a screen stretched, the first vibrating feeder and a transfer path for transferring the powdery or granular material containing the cotton-like substance. A first roller for smoothing the powdery material containing the cotton-like substance transferred to the transfer path, a first roller disposed downstream of the first roller and close to the transfer surface of the transfer path; The second roller for compressing the granular material containing the granular substance, and the discharge opening for discharging the granular material containing the cotton-like substance downward, and the screen stretched over the second vibrating feeder is Granular material or loose material containing cotton-like substances, characterized by being wider than the discharge opening Supply device hard to particulate material is accomplished by.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION A powdery material containing a cotton-like substance or a powdery material which does not easily scatter is supplied from a supply means to a transfer path of a first vibrating feeder. While being transferred by vibration on this transfer path, it is spread in the width direction of the transfer path while being made uniform in layer thickness by the first roller, and further compressed by the second roller on the downstream side with the transfer path. After passing through the second roller, it is supplied to the second vibrating feeder from the discharge opening and passes through the screen stretched over the second vibrating feeder. The powdery material containing the cotton-like substance that falls downward through the mesh due to the vibration of the screen is substantially evenly distributed below the second vibrating feeder.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an apparatus for supplying a granular material containing a cotton-like material according to an embodiment of the present invention, which is generally designated by 8, and includes a supplying hopper 10 as a supplying means and an electromagnetic vibration as a first vibrating feeder. It comprises a feeder 11 and a vibrating screen feeder 12 as a second vibrating feeder. The hopper 10 is arranged on the ground via a mount (not shown),
A powder or granular material (hereinafter simply referred to as material M) such as cement in which a large amount of cotton-like substance is mixed is stored in this. The electromagnetic vibration feeder 11 is suspended by springs 16 and 17 on an upper wall S of a pedestal arranged on the ground. The springs 16 and 17 are spring bearings 18a (18b) and 19a (19) having a known structure.
It is received by b) and placed in a compressed state as shown in the figure to perform a vibration damping action. Further, a vibrating screen feeder 12 is arranged below the electromagnetic vibrating feeder 11, and the vibrating screen feeder 12 is supported by springs 21 and 22 on a beam portion S ′ below the frame. Similarly to the above, the springs 21 and 22 are also received by the spring receivers 23a (23b) and 24a (24b), are suspended by the beam S ', and act as a vibration-proof spring in a compressed state.

Referring to FIGS. 2 and 3, the trough 31 of the electromagnetic vibration feeder 11 includes a pair of electromagnet driving portions 30a,
30b is fixed, has a well-known structure, has a built-in leaf spring, and has a movable core fixed at the center thereof, which generates an alternating magnetic attraction force by an electromagnet supplied with alternating current. Then, the trough 31 is vibrated. Trough 31
As shown in FIGS. 3 and 4, a partition wall 33 is provided inside, and a pair of partition plates 32 are provided on the partition wall 33.
a and 32b are arranged parallel to each other and separated by a predetermined distance.
In this embodiment, a transfer path 34 (shown by double hatching in FIG. 4) is formed by the partition plates 32a and 32b and the partition 33, and a synthetic resin film such as vinyl chloride resin or fluororesin is formed on the transfer path 34. Has been done. FIG.
As shown in FIG. 5, inner surfaces of both partition plates 32a and 32b (see FIG. 5).
A synthetic resin film is also formed on the inner surface of the discharge opening 34a formed at the downstream end of the transfer passage 34. That is, trough 3
When the material M is transferred to 1, the above-mentioned synthetic resin film is coated on all the surfaces which the material M contacts, which means that the material M contains a little water. This moisture is transferred to the transfer surface 34 or the partition plates 32a and 32b.
This is to prevent the material M from adhering to and stagnation on the inner side surface thereof, so to speak, as a measure to prevent the adhesion of the material M.

Above the transfer surface 34 of the trough 31, the rotary shaft 37 of the brush roller 36 as a first roller having a large number of brushes 36a on the upstream side is rotated clockwise in FIG. It is driven by a driving unit 40 which is a motor shown by a chain line. Further, a rubber roller 38 as a second roller is arranged on the downstream side of the rotary shaft 37. The rotary shaft 37 of the brush roller 36 and the rotary shaft 39 of the rubber roller 38 are shared by a common drive unit 40 in the figure. This rubber roller 3 can be rotated in the direction
8 and the transfer surface 34 are spaced apart to compress the material M into a predetermined layer thickness. As described above, the discharge opening 34a is formed at the downstream end of the transfer path 34, and the material M falling from this is dropped onto the screen 15 of the vibrating screen feeder 12.

The rotating shafts 37 and 39 of the brush roller 36 and the rubber roller 38 are inserted into the long holes 26 and 27 formed on both sides of the trough 31, as shown in FIG. The diameters of the long holes 26 and 27 are formed so as to increase upward. That is, the brush roller 36 and the rubber roller 38 are easily attached to and detached from the trough 31 at the time of cleaning or replacement. The drive unit 40 is fixed to a frame 41 (see FIG. 3), and the brush roller 36 and the rubber roller 38 are provided.
The rotary shafts 37, 39 of the above and the drive shafts 42, 43 of the drive unit 40 are connected by a universal joint J. As a result, the trough 31 causes the pair of electromagnet drive units 30a, 30a
Even when vibrating in the direction of arrow a shown in FIG.
The driving force of the driving unit 40 is transmitted to the rotating shafts 37 and 39 of the brush roller 36 and the rubber roller 38. Furthermore, the amplitude of the trough 31 can be changed by changing the value of the electric current supplied to the pair of electromagnet driving units 30a and 30b, and the transfer speed of the material M can be changed.
The height of the drive unit 40 can be adjusted according to the material transfer speed.

As shown in FIGS. 7 and 8, a pair of vibrating electric motors 35a and 35b are attached to the rear of the vibrating screen feeder 12 at a certain interval, and rotating shafts 45 and 47 are driven by a power source (not shown). The unbalanced weights 46 and 48 are rotationally driven in opposite directions, but the unbalanced weights 46 and 48 are rotated in phase at the same rotational speed by a known synchronizing force, and as a result, as shown in FIG.
Generates linear vibration in the direction. The screen 15 stretched over the trough 50 is the discharge opening 34a of the electromagnetic vibration feeder 11.
The width is wider than that of the first embodiment, and as shown in FIG.
The upper screen portion 15a and the lower screen portion 15b have a square mesh, but are arranged so as to be shifted by half a pitch. Therefore, as is apparent from FIG. 9, the size of the mesh is 1/4 when viewed from above. The pair of vibration motors 35 described above.
Although a and 35b generate linear vibration in the direction of arrow A, this direction is parallel to the screen 15.

The powdery or granular material supplying device 8 according to the embodiment of the present invention is constructed as described above.
Next, this operation will be described.

Driving units for the electromagnetic vibration feeder 11 and the vibrating screen feeder 12, that is, a pair of electromagnet driving units 30a and 30b and a pair of vibration motors 35a and 35b.
Is driven. As a result, the trough 31 of the electromagnetic vibration feeder 11 vibrates in the direction of arrow a. This makes hopper 1
The material M discharged from 0, that is, the granular material (cement) containing the cotton-like substance is transferred to the left side in FIG. On this way, the brush 36a attached to the peripheral surface of the brush roller 36 on the upstream side smoothes the lumped material M and spreads it in the width direction of the transfer path 34. Further, the material M has a substantially constant layer thickness. After passing through here, the material M has a layer thickness corresponding to the level from the transfer surface of the transfer path 34 positioned by the rubber roller 38.
Compress. Although this compressive force is not so strong, it is large enough to expand the transfer path 34 in the width direction (by the distance between the partition plates 32a and 32b). At this time, the transfer surface of the transfer path 34 and both partition plates 32
The material M is transferred without delay by the above-mentioned synthetic resin film formed on the inner side surfaces of a and 32b.

The material M falling from the discharge opening 34a is supplied to the vibrating screen feeder 12 below the full width of the transfer path 34 of the electromagnetic vibrating feeder 11, but since it is smaller than the width of the screen 15, the material M is The sieving areas of the upper and lower screen portions 15a and 15b are effectively used and the particles are scattered downward. Vibrating screen feeder 12
The trough 50 is vibrating in the direction of arrow A by driving the pair of vibration motors 35a and 35b.
The entire material M is shaken left and right above. As a result, it is sufficiently dissociated by the interaction with gravity and falls from the square mesh of the upper screen portion 15a. Since this does not have a large distance to the screen 15b arranged below, it is almost free fall, and the lower screen 15b
The center portion of the material M collides with the intersection point W (see FIG. 9) and receives an impact force, and the material M spreads in the longitudinal direction of the screen 15 and is more efficiently dispersed. Therefore, the material M falling from the lower screen portion 15b is evenly distributed over the width of the belt conveyor 55 disposed below as shown in FIG. 10, and is supplied to the next step.

The mesh of the upper screen portion 15a of the vibrating screen feeder 12 and the mesh of the lower screen portion 15b are not displaced by a half pitch, that is, in the completely aligned state, the material M is subjected to the above-mentioned operation. When dropped through a sieve, for example, 5 in the width direction of the belt conveyor 55.
Each rectangular container is placed, the material is discharged onto the container, and the measurement result of the weight of the material received by each container and the mesh of both screen portions 15a and 15b are shifted by a half pitch as in the present embodiment. When the measurement result of the weight of the material received in each container when the material M is supplied from above is examined,
It has been found that the material M is dispersed almost uniformly in the above-mentioned five containers when the pitch is shifted by a half pitch as in the present embodiment. However, when the meshes were aligned, the weight distribution of the material M was larger in the container placed in the central portion of the belt conveyor.

Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made based on the technical idea of the present invention.

For example, in the above-mentioned embodiments, the hopper 10 is used as the supply means, but the supply means is not limited to this, and the supply path 34 of the electromagnetic vibration feeder 11 may be supplied by using another supply means such as a belt conveyor. May be.

Further, in the above embodiment, the pair of electromagnet driving portions 30a and 30b of the electromagnetic vibration feeder 11 are provided with the trough 31.
Although it is attached above, it may be attached below. However, when the upper space has a margin and the lower space is used for other work as in the present embodiment, the electromagnet drive unit 30 is used.
It is more convenient to mount a, 30b above the trough 31.

In the above embodiment, the brush roller 36 and the rubber roller 38 as the first and second rollers are attached one by one, but of course, a plurality of them, for example, two may be alternately used. .

Further, the vibrating screen feeder 12 generates linear vibration by the pair of vibrating motors 35a and 35b to generate vibration parallel to the screen 15, but of course, a vibrating force oblique to the screen 15 is generated. When the material reaches the end of the screen 15, the end of the screen 15 is tilted upward or curved upward, and the material slides downward again. It may be separated.

The vibration driving unit is not limited to the pair of vibration motors 35a and 35b, but a single vibration motor generates a circular excitation force, and the circumferential surface thereof is arranged parallel to the screen 15. Alternatively, the vibrating motor may be attached so as to generate in an oblique direction.

Further, instead of this oscillating motor, like the electromagnetic oscillating feeder 11, an electromagnet drive section may be attached to the rear end of this trough 36. In addition, although the present embodiment is applied to the powdery material containing the cotton-like substance, other materials,
For example, it can be applied to a material containing asbestos in sand. Alternatively, the present invention can be applied to a powdery or granular material that is not easily scattered.

Further, in the above embodiments, the screen 15 of the vibrating screen feeder 12 is composed of the upper and lower screen portions 15a and 15b, but the number of stages may be further increased. Also in this case, of course, it is desirable that the intersections of the wire rods that form the net are viewed from above, that is, the mesh viewed from above is apparently small.

[0025]

As described above, according to the powdery granular material-containing powdery material-supplying device of the present invention, or the powdery granular material-containing material which is hard to disperse, the powdery granular material or the granular material containing the cottony material which is difficult to be evenly dispersed or Even if it is a powdery material that does not easily come apart, it can be scattered almost ideally.

[Brief description of the drawings]

FIG. 1 is a side view of an apparatus for supplying a granular material containing a cotton-like material according to an embodiment of the present invention.

FIG. 2 is a partially cutaway side view of an electromagnetic vibration feeder in the same device.

FIG. 3 is a front view of FIG. 2;

FIG. 4 is a cutaway plan view of the same.

FIG. 5 is an enlarged sectional view of a part of the trough.

FIG. 6 is a partially cutaway side view of a vibrating screen feeder in the same apparatus.

FIG. 7 is a front view of the same.

FIG. 8 is a plan view of the same.

FIG. 9 is an enlarged plan view of a screen in the vibration scooping lean feeder.

FIG. 10 is a cross-sectional view of a main part of the same device, showing a dispersion state of materials applied to this example.

FIG. 11 is a schematic plan view of a conventional example.

[Explanation of symbols]

 8 Feeding Device for Powder Material Containing Cotton-like Material 10 Feed Hopper 11 Electromagnetic Vibration Feeder 12 Vibrating Screen Feeder 15 Screen 15a Upper Screen Section 15b Lower Screen Section 34 Transfer Path 34a Discharge Opening 36 Brush Roller 38 Rubber Roller

Claims (4)

[Claims] 1. A supply means for supplying a powdery material containing a cotton-like substance, a first vibrating feeder supplied with the powdery material containing a cottony substance from the supplying means, and a lower portion of the first vibrating feeder. And a second vibrating feeder having a screen stretched thereon, wherein the first vibrating feeder has a transfer path for transferring the granular material containing the cotton-like substance, and the transfer path for transferring the granular material containing the cotton-like substance. A first roller for smoothing out the powdery material containing the cotton-like substance, and a downstream side of the first roller and in the vicinity of the transfer surface of the transfer path, and compressing the powdery material containing the cotton-like material. Second
It is characterized in that it comprises a roller and a discharge opening for discharging the granular material containing the cotton-like substance downward, and the screen stretched over the second vibrating feeder is wider than the discharge opening. A device for supplying powdered or granular material containing cotton-like substances or powdery or granular material that does not easily scatter. 2. The screen of the second vibrating feeder has two screens.
The powdery or granular material-containing material supply device according to claim 1, wherein the meshes of the screens are arranged so as to be offset from each other when viewed from above. 3. The supply device for a powder or granular material containing a cotton-like substance or a powder or granular material which is hard to disperse according to claim 1, wherein the roll surface of the first roller has a brush shape. 4. A supply device for a powder or granular material containing a cotton-like substance or a powder or granular material which is resistant to dispersion according to claim 1, wherein the transfer surface of the transfer path is coated with a synthetic resin.