JPH01123623A - Continuous supply device for material to be mixed - Google Patents

Abstract

PURPOSE:To continuously supply the materials to be mixed with a precise mixing ratio by preliminarily mixing the materials in a specified mixing ratio which are sent out through each sending-out means from plural storage hoppers and measuring hoppers through a 1st mixer, and controlling the discharge from a 2nd mixer so as to be allowed to discharge continuously. CONSTITUTION:Materials A-C stored in the hoppers 21-23 are sent out to the measuring hoppers 27-29 from, for instance, electromagnetic vibration feeders 24-26 with the sending-out velocity corresponding to a specified mixing ratio. Feeders 30-32 are started to be driven from the upstream side in order according to the requirement of the downstream equipments, and the materials are discharged on a belt conveyer 33 with the discharge velocity corresponding to the mixing ratio and supplied to a premixer 34 to be preliminarily mixed. This premixed material is supplied to a mixer 37 of rear stage through a feeder 36 while measuring the weight by a weight detecting means 35 so that the material is continuously supplied to a kneader 38 from the mixer 37 by securing such a controlled state that the material is always supplied in the range between the level detectors 39, 40.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a continuous feeding device for compounded materials.

[Prior art and its problems] Fig. 4 shows a first conventional example of a feeding device for blended materials. Cage, hopper (2
) stores material B1 such as wheat, and the electromagnetic vibration feeder (3) (4
) From K, it is a trap to be cut out to the weighing hopper (5) (6). The weighing hopper (5) (6) has a known structure, but the whole is weighed by a scale (7) (8). Materials A and B according to the amount are cut out by the feeders (3) (4) in the weighing hoppers (5) (6), and when a predetermined amount is measured, a drive stop signal is supplied to the feeders (3) (4). Then, as shown by the dotted line, the tart (o) provided at the discharge port is
Release the box. Then, it is discharged onto a belt conveyor αη disposed below this. The materials A and B discharged by the belt conveyor αη are transferred to the mixer (
6), where it is mixed.

The first conventional example is constructed and operates as described above.The weighing hoppers (5) and (6) can accurately measure the material input and B according to the mixing ratio, but the mixer The mixer (6) receives materials A and B at one time, mixes them in a predetermined state, and then discharges them from the mixer (6) through a feeder (12). However, in this conventional example, the mixer (6) has a large capacity and requires a very long mixing time to mix to the desired state K.

FIG. 5 shows a second conventional blending device, which is a continuous type, which will be explained below. Furthermore, the fourth
Portions corresponding to the first conventional example in the figure are given the same reference numerals, and detailed explanation thereof will be omitted. In this conventional example, a known weighing belt conveyor (2) α4 is disposed below the discharge port of the electromagnetic vibration feeder (3) (4), and this weighs the weight of the material placed thereon using a load cell 05M. K is set for detection.

The belt conveyor (to) αΦ is driven continuously, and in order to keep the weight of the material placed on it constant, the electromagnetic vibration feeder (to) is driven by a signal from the load cell (to). 3) The amplitude of (4) is adjusted. Materials are discharged from the weighing belt conveyor (2) α◆ at a speed according to the predetermined mixing ratio and are supplied to the mixer (B).
Each material, B, is mixed and supplied to the outside or to the next process by a feeder (17 m), but according to this conventional example, it is true that the mixer αη can be downsized, and it can be continuously The mixed material is discharged. When using a weighing hopper, it is possible to accurately weigh the weight according to the mixing ratio of 7, but in this way, the material is continuously transferred from the weighing belt conveyor (to) to the mixer (to).
When supplying K, it is sufficient if the supply rate is always constant, but there is a change over time, and there are variations in the discharge rate.

Therefore, when looking at the average over a long period of time, it can be assumed that mixed materials are supplied from the mixer (B) at a predetermined mixing ratio, but in reality, due to changes over time, they are discharged from the mixer (B). There are variations in the blending ratio of mixed materials.

[Problem that the invention seeks to solve]

The present invention was made in view of the above-mentioned problems, and it is possible to continuously supply mixed materials to the next process at a predetermined and accurate mixing ratio, and it is possible to use a continuous blending device that does not require any increase in the size of the mixer. The purpose is to provide.

[Means for solving problems]

The above object is to provide a plurality of storage hoppers for various materials and each first storage hopper for cutting out the storage material from each outlet of the hoppers.
a cutting means, each weighing hopper for receiving and weighing the material cut out (by the cutting means), and each second cutter for cutting the material received from each outlet of the weighing hopper; a first mixer that receives the materials cut out from the second cutting means and mixes them in advance, and a third cutting means for cutting out the pre-camellia mixed material from the discharge port of the first mixer. and a second mixer that receives and mixes the pre-rolled mixed material cut out from the third cutting means, and each weighing hopper collects the material in a weight corresponding to a predetermined material mixing ratio. After receiving the material by operating each of the first cutting means, each of the second cutting means is operated to cut out the first material at a cutting speed corresponding to the predetermined material mixing ratio.
KL is configured to supply the pre-rolled mixed material to the second mixer, and when the pre-mixed material in the second mixer becomes less than a predetermined amount in the second mixer, the third cutting means is actuated to supply the pre-rolled mixed material to the second mixer. This is achieved by a continuous supply device for mixed materials, characterized in that the second mixer is continuously operated to continuously supply the mixed material having the predetermined material mixing ratio to the next step. be done.

[For production]

Since each weighing hopper weighs the material in a weight corresponding to a predetermined material blending ratio, the blending ratio becomes accurate.

Further, the material is cut out from each weighing hopper by the cutting means at a speed corresponding to the blending ratio. Therefore, in the first mixer that receives each of the cut-out materials, the materials are already mixed with a certain degree of uniformity.

The mixed material is supplied from the first mixer to the second mixer, and this
The mixture is further mixed evenly and then continuously discharged from here.

In the second mixer, when the amount becomes less than a predetermined amount, the mixed material is supplied from the first mixer as a trap, so that the mixture does not become empty and a preferable mixing state can be obtained. Further, the first mixer performs a discharge operation in response to a supply request from the second mixer.

〔Example〕

FIG. 1 shows a continuous feeding device for compounded materials according to a first embodiment of the present invention, in which a storage hopper c! Materials A and BSC are stored in 11 (■), respectively.

These materials B and C are, for example, corn, beans,
Such as wheat. An electromagnetic vibration feeder C24+251+261 is provided as a cutting means under the discharge port of the hopper 12noa, and a known weighing hopper is provided below the discharge port. An electromagnetic vibration feeder ■cell C33 is suspended by a spring below the discharge port of these weighing hopper surfaces @■ as cutting means. In other words, the weighing hopper @@■ is the weighing mechanism I
The total weight of the material in the hopper and the cutting means (311) is detected by the 17J63, and even though it is not shown, the controller measures the weight spread over a predetermined mixing ratio. A belt conveyor is provided under the discharge port of each feeder (10C311321), which transfers the material discharged from the feeder to the right in the figure and supplies it to the premixer. The premixer is equipped with an electromagnetic vibrating feeder below its discharge port as a cutting means, and the entire weight is measured by the weighing mechanism. Although not shown in the figure, when the weight of the material in the premixer in the figure falls below a predetermined value, an electromagnetic system is installed in the controller that supplies the material to the belt conveyor upstream of the premixer and to this belt conveyor. The vibrating feeder C3G (111C13) starts driving and stops when a second large predetermined value is reached.In other words, a predetermined amount of material within a certain range is always stored in the premixer (B). An electromagnetic vibration feeder is provided below the discharge port of the premixer as a means for discharging the material, and the mixer 6 receives the material to be discharged. is being operated continuously, and from now on the electromagnetic vibration feeder (37
The mixed material discharged by the kneader is polished, for example, by supplying 71 honey, the mixed material is kneaded with) and thymine, and then supplied to the next process. ing.

This mixer C37) is provided with a lower limit level detector and an upper level detector (to), and when the material in the mixer 13η becomes lower than the lower limit level detector (4G level), the premixer is discharged The electromagnetic vibration feeder (36) below the outlet is driven to supply material to the mixer 6η, and when the upper limit of the level detector is reached, the drive of the feeder (36) is stopped.

In other words, there is always a level detector (4I) inside the mixer 13η.
Material is stored within the level between C31. Therefore, even if the material is continuously discharged from the mixer C3η, the material will not be interrupted at all times.

Note that the amplitude of the electromagnetic vibration feeder C3G 31133 for cutting out material from the weighing hopper @@■, that is, its discharge amount, is set to be a magnitude corresponding to a predetermined mixing ratio. Note that when the belt conveyor is used, it is driven at a constant speed.

In addition, there is also a feeder (each distance between the discharge ports of 311C33 is t,
and t, when feeding the material from the feeder [31] to the belt conveyor, the distance Zl,
Considering z, start driving the feeder ■C11
They are started at a certain time difference in the order of IC33. In other words, when the material discharged from the feeder advances t and comes under the discharge port of the feeder 3υ,
Start driving this feeder 6υ, and these materials A,
The feeder 33 is started to be driven when the H layer advances by t as measured from the bottom of the feeder (2).

The continuous supply device for compounded materials according to the embodiment of the present invention is constructed as described above, and its operation will be explained next.

Ho2bar (211 (221 (23) has materials A, B, and C stored in it, but now, for example, if a person...
Suppose that it is necessary to mix BSC in a weight ratio of Zoo: 50: 200. Weighing hopper @@
@ is an electromagnetic vibration feeder (24
Materials A, B, and C are cut out from 1+2511261 into weighing hopper +271+281 (support) at a cutting speed corresponding to the mixing ratio of 100:50:200. Then, in each weighing hopper @@(c), for example, to
Feeder CI when weighing each material of oKp, 5oKf, 200~! 4CISC1B is stopped. According to this embodiment, each feeder CI! Since the cutting speed of 41 (251 (2e) is set according to the blending ratio, the weighing of each weighing hopper (271+281@) will be completed at the same time.And when each hopper@@(to) weighs this predetermined weight, the The metering mechanism is electromagnetic feeder C24.
Generates a signal to stop driving 1+251■. Therefore, for example, 100i1.5oKf and zooKf are accurately weighed into the weighing hopper (2)@@ according to a predetermined blending ratio. At this time of measurement, the Hokupa surface @(
Since it is not cut out from c), the measurement value is obtained in a static state, and its accuracy is extremely high. When each device on the downstream side requires material, its feeder CacIυ is driven as a cutting means, and the belt conveyor below it is also driven, but first the feeder group on the most upstream side is driven. When the material is started and the amount of material in the future advances by t, the next feeder C311
starts to drive, material B is cut out, and when the material of the layer with input as the lower layer and B as the upper layer advances a distance tl measured from the discharge port of the feeder (7), the feeder ■ is driven. Material C will now be discharged. Therefore, as shown in FIG. 2, near the discharge end of the belt conveyor, the bottom layer is A1, the next layer is B1, and the top layer is C. Materials are discharged in layers as shown in the figure. Furthermore, according to this embodiment, each cutting feeder c3D is configured to discharge at a speed corresponding to its compounding ratio, so there is a difference in layer thickness as shown in Figure 2. However, in terms of weight ratio, the ratio of M:B:C is 100:50:200, and in this state, premixer C[K is supplied. These materials A and B are already mixed with a high degree of homogeneity.
The XC will be further mixed and homogenized within this premixer.

The total weight of the premixer (1) and the electromagnetic vibration feeder (1) suspended below its discharge port are measured by a detection mechanism. Mixer (9) K is supplied with mixed material from feeder (to) K without the material being empty in (to). Mixer (in 3D, the materials that have already been mixed sufficiently evenly are further mixed and transferred to the kneader)
It is supplied from □□□ to the next process. Materials that are evenly mixed at a predetermined mixing ratio are supplied from the Neighborhood.
Become.

A lower limit level detector (40) and an upper limit level detector (39) are provided in the mixer surface, and the mixer (9)
The mixed material is continuously supplied to the mixer c37), and the level detector 14
When the temperature falls below 0, the feeder on the upstream side is driven to receive the material in the premixer frame. And upper limit level detector C3! J
When the feeder reaches K (full state), the drive of the electromagnetic vibration feeder is stopped. Therefore, the six mixers are always filled with material up to a height within the range of level detector C3!1 (40).

In the premixer (to), materials are supplied from the belt conveyor, and the weight detection mechanism (to) K detects the entire weight, and when the premixer reaches a predetermined weight,
In other words, when the tray is full, the belt conveyor and the feeder ωC (11C33
drive is stopped. When the empty state reaches a predetermined value, the belt conveyor and the feeder 3υ■ start to be driven again, and the material is supplied to the premixer. Therefore, there is no interruption in the supply of material into the mixer 3n on the downstream side when it is necessary to supply the material, and the mixer +371 continuously supplies the mixed material to the kneader-c! aK can be supplied.

The operation of the first embodiment of the present invention has been explained above, but
This has the following effects.

That is, according to this embodiment, it is possible to accurately weigh each of the materials A1B and C according to a predetermined blending ratio. And after this, feeder ■C
3] Since the materials are discharged at a speed according to the predetermined mixing ratio and supplied to the premixer, the materials have already been sufficiently evenly mixed. Furthermore, the mixed materials are further mixed in the mixer C3D, and the mixed materials that are continuously supplied from this point on are extremely uniform and have a precise mixing ratio. As a result, the continuous discharge speed can be increased.

FIG. 3 shows a continuous feeding device for compounded materials according to the second embodiment of the present invention.
, C are not supplied, but are directly cut out from the weighing hopper @@(2) by the feeder group 61) 53, and each material A, B, C is supplied. Also in this example, each material is fed into the premixer from the feeder (!461153) at a cutting speed according to each compounding ratio. Note that (34m) indicates a stirring blade.

Furthermore, according to this embodiment, since the belt conveyor mouth is used in the first embodiment, each feeder C31)
Since there is a gap between the discharge ports in the Cl1l country, the drives are started with a time difference, but in this embodiment, the drives are started at the same time. In the second embodiment, the configuration on the downstream side of the premixer (b) is the same as that in the first embodiment. That is, a feeder cll19 as a cutting means is provided below the discharge port of this premixer circle, and a mixer-kneader (toward) and the like are further provided on the downstream side of this feeder cll19.

It is clear that this embodiment also has the same effects as the first embodiment.

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

For example, in the above example, the case where three types of materials A, B, and C are blended is explained, but of course the number of types is not limited to this, and when a larger number of types of materials are blended. The present invention is also applicable.

In addition, in the above first embodiment, as shown in FIG. Of course, it is also possible to eliminate the time difference and start the drives at the same time.3Also, even if the tips do not coincide exactly as shown in Figure 2, an appropriate mixing action can be obtained depending on the properties of the materials. They may be placed one after the other in consideration of the mixing effect on the downstream side.

In addition, in the second embodiment, the feeder ■6υS3 as a cutting means was started to be driven at the same time, but the driving start may also be delayed depending on the properties of each material and their blending ratio. .

In addition, a weighing mechanism was installed in the premixer (B) so that the specified material was always present there, but instead of this, a lower limit level detector and an upper limit level detector were installed between the mixers. A detector may also be provided.

[Modified example]

Further, in the above embodiments, an electromagnetic vibration feeder was explained as a means for cutting out material from a hopper or a mixer, but other cutting means, such as an a-tally valve or a belt conveyor, may be used instead. Good too.

Further, in the above embodiment, the mixed material discharged from the mixer in the final step is supplied to the kneader, but of course the mixed material is not limited to this and may be supplied to other devices. Alternatively, one supply from this mixer may be supplied into the storage container.

In addition, in the above example, in the final process mixer,
Although the amount of the mixed material present therein is detected by the level detector, instead of this, the lower and upper limit levels of the mixed material may be detected by a weighing machine like a premixer.

In addition, in the above embodiment, the level is detected to detect the amount of material in the pre-mixer, and a vertical mixer is used, but a horizontal mixer is used instead. That is, when the stirring spring extends in the horizontal direction, it is necessary to use a weighing device instead of a level detector.

〔Effect of the invention〕

As described above, according to the continuous feeder for compounded materials of the present invention, it is possible to continuously feed materials evenly and at an accurate blending ratio without increasing the size of the mixer as in the past. It can be supplied to the next process or outside.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view of a continuous feeding device for compounded materials according to a first embodiment of the present invention, FIG. 2 is an enlarged cross-sectional view showing the operation of a part of FIG. 1, and FIG. A plan view of the main parts of the continuous supply device for compounded materials according to the embodiment, FIG.
FIG. 5 is a schematic plan view of a continuous feeding device for compounded materials according to the conventional example, and FIG. 5 is a schematic side view of a continuous feeding device for compounded materials according to the second conventional example. In the figure,

Claims (1)

[Claims] a plurality of storage hoppers for various materials, first cutting means for cutting out the stored materials from respective discharge ports of the hoppers, and respective first cutting means for receiving and weighing the materials cut by the cutting means; A weighing hopper, second cutting means for cutting out the material received from each discharge port of the weighing hopper, and a first cutting means for receiving the materials cut out from the second cutting means and mixing them in advance. a mixer, a third cutting means for cutting out the premixed material from the discharge port of the first mixer, and a second mixer for receiving and mixing the premixed material cut out from the third cutting means; Consisting of
In each of the weighing hoppers, after receiving the material in a weight corresponding to a predetermined material mixing ratio by operating each of the first cutting means, each of the second cutting means is operated to adjust the material to the predetermined material mixing ratio. The premixed material is supplied to the first mixer at a corresponding cutting speed, and when the premixed material in the second mixer becomes less than a predetermined amount in the second mixer, the third cutting means is actuated to 2 mixer with the premixed material;
A continuous supply device for mixed materials, characterized in that the second mixer is continuously operated to continuously supply the mixed material having the predetermined material mixing ratio to the next step.