JPS6347500B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mixing device that uniformly mixes the discharged granules with variations in quality, particle size, etc. from a hopper, and is particularly suitable for use at work sites. It is designed to be easily moved.

Conventionally, when this kind of granular material is put into a single hopper, those with a light specific gravity and those with a large particle size remain at the top, and when a mixture of these is discharged from the hopper, initially, the thin one and the one with a large specific gravity remain at the top. Particles are discharged, and in the latter stage, there is a bias towards lighter particles and larger particles.

The applicant has already developed a device for mixing this type of granular material in Japanese Patent Application No. 110189/1989. However, once these mixtures are mixed, they may become unevenly distributed again during transport by automobile or freight car, and it may be necessary to mix them again at the grain collection point or delivery destination.

The present invention improves the drawbacks of the prior art, provides mobility by mounting the mixing device on a vehicle, facilitates the removal of mixed granules on site, and has a structure of the removal device. This is a simplified version of .

Another purpose is to provide this device with mobility so that it can go to a location where mixing is required and mix granular materials there.

In this invention, almost the entire length of the valley of a trough-like hopper with a V-shaped cross section is used as a discharge port, and a porous diaphragm having an inclined surface along the inner wall surface of the hopper with a slight gap forms the trough. The porous diaphragm is equipped to vibrate freely with respect to a shaped hopper, and each hole diameter of the porous diaphragm is set to be large enough to allow the mixture to pass through,
The gap between the inner wall surface of the hopper and the outer surface of the inclined surface portion of the porous diaphragm is set to a size sufficient to allow the material to be mixed to flow down, and a granular material mixing device in which a vibration generator is connected to the porous diaphragm is installed in the vehicle. An endless bucket conveyor is provided on the vehicle body and surrounds the granular material mixing device along a vertical plane, the lower portion of which extends longitudinally directly below the outlet of the mixing device. , and each bucket is provided on the outside of the endless belt of the conveyor, and the conveyor guide trough has a bottom plate below the discharge port of the mixing device as a flat or trough-like surface corresponding to the width of the bucket. At least one of the side wall plates is inclined, and the upper edge of the side wall plate is wider than the width of the bucket conveyor. The conveyor is covered with the conveyor guide trough on the outer surface and both sides of each bucket except under the outlet, and a conveyor outlet is provided from the upper side to the descending side of the conveyor guide trough. This is a mobile granule mixing device characterized by the following.

The invention will now be described on the basis of exemplary embodiments shown in the drawings.

Part of the granule mixing device.

The granular material mixing device 10 has a trough-like hopper 11 having a V-shaped cross section, whose trough-like hopper 11 has almost the entire length as a discharge port 13, and a porous diaphragm 14 parallel to the inclined inner wall surface 12 with a slight gap D therebetween. The diameter of each hole 15, which is provided in large numbers in the multi-hole diaphragm 14, is as follows:
The diameter of the gap D is such that the granules inputted into this device can easily pass therethrough, and the dimensions of the gap D are such that each of the holes 1
5 onto the inclined inner wall surface 12, the size is large enough to allow the mixture to flow down along the inclined inner wall surface 12,
The lower end of the porous diaphragm 14 is closed,
Further, an exciter 17 is connected to the porous diaphragm 14 . The inclination angle α of the porous diaphragm 14 is approximately 15 degrees.

The above-mentioned trough-like hopper 12 and porous diaphragm 14 may be of the single-flow type as shown in FIG. 1, or both may be inclined as shown in FIGS. Regarding V
There is no difference in this invention whether it is shaped like a letter or W-shaped. However, the area of the perforated diaphragm 14 is larger and the area of the perforated diaphragm 14 is larger if it is W-shaped as shown in FIG. Suitable for applications that require a large amount of discharge per hour.

Granule mixing device 10 configured as described above
is mounted on a main body 31 of a vehicle 30, and a bucket conveyor 18 is provided to surround the mixing device 10 in a vertical direction in a ring shape along a vertical plane,
(In the illustration, it also coincides with the longitudinal direction of the vehicle.) Each bucket 19 is located toward the outside of the conveyor loop, and below the discharge port 13, it is located along the length direction of the discharge port 13. The outer surface 21 and both outer surfaces 22 of each bucket 19 of the bucket conveyor 18 are completely covered by a rectangular cylindrical conveyor guide trough 20 except for the portion below the discharge port 13. At the discharge port 13 (see FIG. 7), the bottom plate 23 of the conveyor guide trough 20 is flat or gutter-shaped, as shown in FIG. It is inclined to be wider than the width of the conveyor 18, and its upper edge corresponds to the discharge port 13 at the lower end of the hopper 11.

An outlet 27 is provided at a corner of the conveyor guide trough 20 that is a descending side portion 26 from the upper portion 25.

The method of use and operation of the apparatus of the present invention constructed as described above will be explained below.

First, in order to use this device, the device is self-propelled or towed and stopped at the location where it is to be used, such as at a collection or distribution site for granular materials, or at an individual delivery destination. Or, put several types of granules in it and then move it to the destination.

Next, several types of granules to be mixed are placed onto the porous vibration plate 14 of the granule mixing device 10 at a predetermined ratio. In this case, the friction between each particle and the porous diaphragm 1
Due to the friction with the porous diaphragm 14, the particles
It will not fall from the hole 15.

When the porous diaphragm 14 is vibrated using the exciter 17, the above-mentioned frictional force is broken, and the granules fall out from all the holes 15 covered with granules, and the hopper 11 is slanted inside. It flows down the gap D between the wall surface 12 and the porous diaphragm 14 and passes through the discharge port 13 to the bucket conveyor 18 and the inclined side wall plate 2.
4 and onto the bottom surface 23 between each bucket 19.

Next, when the bucket conveyor 18 is driven in the direction of the arrow in FIG. The mixed granules are carried up to the upper side of the material mixing device 10 and are sequentially discharged from an outlet 27 provided at a corner from the upper part 25 to the lower part 26.

The device of the present invention constructed as described above has mobility because it is mounted on the body of the vehicle, regardless of whether it is a self-propelled vehicle or a trailer vehicle. They can be dispatched seasonally to rice centers (or rice centers), etc., and dispatched at any time to the field, such as collecting cargo from individual farmers and distributing grain to rice distributors.

Also, a particulate matter mixing device 10 forming a part of this device
, two or more types of granules with different specific gravity, or two or more types of granules with slightly different sizes,
Even if these are sequentially added to the mixing device 10 or even if they are unevenly distributed in the mixing device, the vibration of the porous diaphragm 14 allows the vibration of any hole 15.
The mixed state of the particulates passing through the discharge port 13 is as follows. Therefore, the output port 2 of the bucket conveyor 18
The mixed state of the particulate matter discharged from 7 is also made uniform,
It is also possible to pack items sequentially, and in some cases,
It may be transferred to a bagging device or the like using another conveyor or the like.

Furthermore, the bucket conveyor 18 in this device
Since the conveyor guide trough 20 has the above-mentioned configuration, it has the effect of scooping up the mixed granules at the lower part of the discharge port 13, sequentially carrying them upward, and discharging them from the discharge port 27. There is no need to combine multiple conveyors such as directional conveyors and lifting elevators, and the structure is simple and the entire device is compact.Not only does it require the power to discharge granules from this device, but it also operates or moves the device itself. The power required for this purpose is also reduced.

In addition, once the granules are scooped up into each bucket of the bucket conveyor, they hardly rub together in the buckets until they are discharged from the outlet 27, so the granules do not break or rub against each other. There is an export exit.

In addition, since the bucket conveyor that passes under the discharge port 13 is only the part where each bucket is located on the lower side, this part is short, the hopper is not very high, and the center of gravity of the whole is low and stable. good. The inclination angle of the hopper 12 and the multi-hole diaphragm 14 is approximately 15°, and the diameter of the hole 15 is 5 mm to 20 mm.
For those used as rice mixing machines, the diameter of the holes was approximately 10 mm, and the pitch between the holes was 40 mm.

There are no particular restrictions on the vibration caused by the exciter, but the vibration power can be reduced the most by vibrating in the direction along the surface of the porous diaphragm 14, and its amplitude can be reduced.
It is best to use one that can be adjusted in size within a range of 20 mm, and the frequency can also be varied within a range of about 200 to 3600 c/s.

In short, it is preferable to use one that can be appropriately selected depending on the type, size, etc. of the granules to be mixed.

Within the above range, the larger the amplitude and the higher the frequency, the more mixed granules will pass through the discharge port 13, and it is necessary to adjust the operating speed of the bucket accordingly. .

However, when used as a rice mixing machine, if the amplitude or frequency of the porous diaphragm 14 is too large, bran will be formed on the surface of the rice grains due to skin rubbing, so there are limits to their sizes.

This device mixes two or more types of rice from different production areas or grades,
Suitable for obtaining mixed feed by mixing wheat and other grains, or by mixing granules and grains.

In other embodiments shown in FIGS. 1 and 2, the structure is simple and the probability of failure is low.
The processing capacity of the embodiments shown in FIGS. 3 and 4 is large.

As shown in FIGS. 8 and 9, the bucket conveyor 18 is a flexible endless belt 1 made of rubber, synthetic resin, or a composite of these materials.
The best option is to fix bucket belts 19a made of synthetic resin to the outside of belt 8a at predetermined intervals with studs 28 arranged in a row in the transverse direction, but as shown in FIG. It is also possible to simply provide an upright wall 29. Alternatively, as shown in FIG. 11, the bucket bags 19 themselves may be successively connected in a chain. Alternatively, a chain with a bucket attached may also be used. The friction surfaces of the conveyor guide trough 20 and the bucket 19 are lined with a material having a low friction coefficient.

In addition, in the figure, the vehicle 30 is also equipped with a weighing and bagging device 32 below the outlet 27 of the bucket conveyor 18, so that the mixed granules can be directly calculated and packaged if necessary. It is set as.

[Brief explanation of the drawing]

The drawings relate to this invention, and FIGS. 1 to 4 are longitudinal sectional front views showing respective aspects of the granular material mixing device, FIG. 5 is a partially longitudinal sectional side view, and FIG. FIG. 7 is an enlarged cross-sectional view taken along the line 7-7, FIG. 10 and 11 are perspective views of other conveyor embodiments. Symbols in the figure 10... Granule mixing device, 11...
Hopper, 12... Inclined inner wall surface, 13... Discharge port, 14... Porous diaphragm, 15... Hole, 17...
Exciter, 18...Bucket conveyor, 19...
Bucket, 20... Conveyor guide trough, 23...
Bottom surface, 24...side wall plate.

Claims (1)

[Claims] 1. Almost the entire length of the valley of a trough-like hopper with a V-shaped cross section is a discharge port, and a porous vibrator having an inclined surface along the inner wall surface of the hopper with a slight gap therebetween. A plate is installed in a trough-like hopper so as to be able to freely vibrate, and the diameter of each hole in the porous diaphragm is large enough to allow the mixture to pass through, and the inner wall surface of the hopper and the outer surface of the inclined surface of the porous diaphragm are The gap between the particulate matter mixing device and the particulate matter mixing device is provided on the vehicle body, and the gap between the particulate matter mixing device and the particulate matter mixing device is connected to the porous diaphragm and a vibration generator is provided on the vehicle body.
An endless bucket conveyor is provided vertically surrounding the granulate mixing device, the lower portion of which runs along its length directly below the outlet of the mixing device, and each bucket is connected to the conveyor. The conveyor guide trough is provided on the outside of the endless belt, and the bottom plate of the conveyor guide trough is a flat or trough-like surface corresponding to the width of the bucket below the discharge port of the mixing device;
At least one of the side wall plates is slanted so that the width of the both sides is wider than the width of the bucket conveyor as it goes upward, and the upper edges of these side wall plates correspond to the lower edge of the discharge port of the mixing device, respectively. The conveyor is covered with the conveyor guide trough on the outer surface and both sides of each bucket except under the discharge port, and a conveyor discharge port is provided from the upper side of the conveyor guide trough to the descending side. A mobile granule mixing device characterized in that: 2 Claim 1, characterized in that the vehicle body is one of a self-propelled vehicle and a trailer.
The mobile granule mixing device described in Section 1.