WO2003031294A1

WO2003031294A1 - Powder particle distribution device and shifter

Info

Publication number: WO2003031294A1
Application number: PCT/JP2002/010339
Authority: WO
Inventors: Akihiro Tanaka; Shin Doi
Original assignee: Nisshin Flour Milling Inc.
Priority date: 2001-10-03
Filing date: 2002-10-03
Publication date: 2003-04-17
Also published as: JP4219272B2; JPWO2003031294A1

Abstract

This powder particle distributing device (14) comprises a disk-shaped or conical distribution block (18), a distribution sleeve (22) coaxially disposed above the distribution block and cooperate with the distribution block to define a reservoir chamber (20) for powder particles, a feed sleeve (24) whose outer diameter is smaller than the inner diameter of the distribution sleeve, and that is disposed coaxial with the distribution sleeve to position its lower end within the distribution sleeve, and adapted to introduce the powder particles into the reservoir chamber, and an outer peripheral wall (26) formed with a plurality of discharge ports (32) for individually discharging the powder particles, which have passed through the distribution sleeve from the reservoir chamber, into the outside from distribution block, the outer peripheral wall (26) covering the outer periphery of the distribution block and distribution sleeve. A shifter (10) comprises the powder particle distribution device (14). As a result, the distribution device and the shifter are simple in construction and even when the mass velocity of the powder particles being fed at a high mass velocity varies greatly, particularly at a high mass velocity, it is possible to evenly and accurately distribute the powder particles.

Description

Light

Granular material distribution device and shifter,

TECHNICAL FIELD The present invention relates to a powder / particle distributing apparatus for evenly distributing powder, such as flour, into a plurality of groups, and a shifter using the same.

Rice field

BACKGROUND ART When treating a large amount of powders and granules, it is necessary to distribute the powders and granules equally in advance and supply them to the next process in order to prevent an excessive burden on a part of the apparatus. For example, in the sieving process, a sifter having a plurality of sections (a sifter) is used when sifting a large amount of granules. Therefore, the granules are distributed evenly in advance by the granule distribution device so that only a part of these sections is not overloaded, and the evenly distributed granules are supplied to each section. You. Examples of the conventional powder and particle distribution apparatus proposed for such a purpose include, for example, a powder and particle distribution apparatus disclosed in Japanese Patent Publication No. 3-6092 of the present applicant, Japanese Patent Application Publication No. 2008-856 discloses a powder and particle distributor. First, the apparatus for distributing powder and the like disclosed in Japanese Patent Publication No. Hei 3-69092 has a powder and particle central accumulation chamber having a powder supply port above and a horizontal bottom, and a central accumulation chamber. At least four chutes each extending from the central area to each chute and extending in the outer circumferential direction to supply the granules to the next processing step, each having a granule discharge port. Positions corresponding to each of the chutes in the transfer area, these positions being approximately equal to the apexes or the center of the regular polygon centered on the central accumulation chamber, and at least two symmetry axes passing through the center. A gate that can be adjusted in the horizontal direction to divide and distribute an equal amount of powder and granules in the horizontal direction from the central stacking chamber to each shout. A motion imparting means for imparting a swinging or vibrating motion to the central stacking chamber one-piece assembly, wherein the granular material supplied into the central accumulating chamber from the granular material supply port is provided with the motion imparting means. Thus, each gate is divided and distributed equally in the horizontal direction from each gate adjusted to a constant level and adjusted to a predetermined equal aperture.

However, in the apparatus for distributing powders and the like disclosed in the same publication, the flow rate ratio of the powders and granules is determined by the gate. Therefore, when the total mass velocity of the powders and granules changes, the distribution ratio fluctuates. There was a problem.

Further, the powder and particle dispenser disclosed in Japanese Patent Application Laid-Open No. H11-208856 is a distributing table having a conical upper surface surrounded by an annular outer peripheral wall, and applying vibration to the distributing table. A plurality of discharge ports are provided on the outer peripheral wall at equal intervals in the circumferential direction, and a plurality of annular dams having different diameters around the top are provided between the top of the distribution table and the outer peripheral wall. The height of each dam is gradually reduced from the first storage tank, including the top of the distribution table, by erecting the plates and making the height of each dam gradually lower toward the outer peripheral wall. An annular storage tank is formed, and the same number of partitions as the number of outlets are provided at equal intervals in the circumferential direction between the outermost weir and the outer peripheral wall. The granules supplied in a continuous manner are overflowed into the outer storage tank while being equalized by vibration. It is obtained so as to evenly distribute. However, the powder and particle distributor disclosed in the publication requires a plurality of annular dams, and there is a problem in that the configuration of the distribution table becomes complicated and the cost increases.

In addition, in the powder and particle distributor disclosed in the same gazette, since there is a space between the input port for the powder and the innermost crevice plate, the powder supplied from the input port is in the first stage. In some cases, the powder was not stored in the first storage tank, but was directly supplied to the second and subsequent storage tanks, and the distribution ratio of the powder particles was large. Disclosure of the invention

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems based on the prior art, and to achieve a simpler structure, especially when the mass velocity of the granular material supplied at a large mass velocity fluctuates greatly. An object of the present invention is to provide a powder and particle distributing apparatus and a shifter which can distribute particles equally with high precision.

In order to achieve the above object, the present invention provides a disk-shaped or conical distribution table, and a distribution cylinder which is coaxially disposed on an upper part of the distribution table and forms a storage chamber for powder and granules together with the distribution table. The outer diameter is set smaller than the inner diameter of the distribution cylinder, and the lower end portion is disposed coaxially with the distribution cylinder so that the lower end is located in the distribution cylinder. A supply tube to be introduced, and a plurality of discharge ports for individually discharging the particles passing through the distribution tube from the storage chamber to the outside from the distribution table are formed, and cover an outer periphery of the distribution table and the distribution tube. The present invention provides a powdery and granular material distribution device comprising: an outer peripheral wall;

Here, it is preferable that a plurality of notches are formed in a circumferential direction at an upper end portion of the distribution cylinder, and each of the plurality of notches is formed so as to become wider as going upward. Preferably.

Further, it is preferable that the lower end of the supply tube is disposed at a position between the upper end of the distribution tube and the lower end of the plurality of cutouts.

In addition, each of the powder and particle distribution devices further includes a disc-shaped ceiling provided at an upper end portion of the outer peripheral wall and having a circular opening at the center. Preferably, the well is attached so as to pass through the circular opening.

In addition, it is preferable that each of the powder and particle distribution apparatuses further includes height adjusting means for positioning a lower end of the supply cylinder in the distribution cylinder and adjusting a height of the lower end of the supply cylinder. . .

Further, it is preferable that each of the powder and particle distribution apparatuses further includes an impact buffering member having a plurality of through holes attached to a lower end of the supply cylinder.

Further, it is preferable that the shock absorbing member is attached so as to cover a lower end portion of the supply cylinder.

Further, it is preferable that the shock absorbing member includes a shock absorbing net formed in a mesh shape.

Further, the shock absorbing member preferably includes, as the plurality of through holes, an impact buffer plate having a central opening, a plurality of circular through holes, and a plurality of oblique through-holes inclined radially from the center thereof. preferable.

In addition, the shock-absorbing member includes a mesh-shaped shock-absorbing net, a plurality of through-holes, a central opening, a plurality of circular through-holes, and a plurality of inclined through-holes that are inclined radially from the center thereof. And a shock-absorbing plate having a long hole, wherein the shock-absorbing plate is preferably disposed below the shock-absorbing net. Further, it is preferable that the shock absorbing plate is located in the distribution cylinder.

Further, when a plurality of notches are formed in a circumferential direction at an upper end portion of the distribution tube, the shock absorbing plate is positioned between an upper end portion of the distribution tube and a lower end portion of the plurality of notches. It is preferred that they are arranged in

In addition, it is preferable that each of the powder and particle distributing apparatuses further includes a slit provided between the lower end of the distribution tube and the distributing table over the entire periphery of the lower end of the distribution tube.

The dimensions of the slit between the lower end of the distribution cylinder and the distribution table are as follows:

It is preferably between 4 and 3 O mm.

Further, it is preferable that each of the above-mentioned granular material distribution devices further includes a vibration generating unit that vibrates the granular material distribution device.

The present invention also provides a shifter body for simultaneously sieving the powders and granules distributed to a plurality of groups, vibration generating means for vibrating the shift body, and a shifter installed on an upper surface of the shift body. The method according to any one of claims 1 to 20, wherein the shift main body is vibrated at the same time as the main body is vibrated by the vibration generating means, and the granular material is distributed to the plurality of groups and supplied to the shifter main body. The present invention also provides a shifter characterized by comprising the above-described powder and particle distribution apparatus.

The “vibration” referred to in the present invention includes not only vertical (vertical) and horizontal vibrations, but also rotational movements in a substantially circular shape.

Further, in the present invention, the distribution cylinder refers to one that functions as a weir plate. BRIEF DESCRIPTION OF THE FIGURES FIG. 1 is a side sectional view of an embodiment of the present invention.

FIG. 2 is a top cross-sectional view of one embodiment of the granular material distribution device of the present invention used in the shifter shown in FIG.

FIG. 3 is a schematic perspective view of one embodiment showing a positional relationship between a distribution cylinder and a partition plate in the granular material distribution device shown in FIG.

FIG. 4 is a side sectional view of another embodiment of the shifter of the present invention.

FIG. 5 is a plan view of an embodiment of the shock absorbing net shown in FIG.

FIG. 6 is a plan view of one embodiment of the shock absorbing plate shown in FIG.

FIG. 7 is a characteristic diagram of another example showing a result of distributing powders and granules into four groups using the powder and granules distribution apparatus of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A granular material distribution device and a shifter according to the present invention will be described in detail below based on preferred embodiments shown in the accompanying drawings.

FIG. 1 is a side sectional view of an embodiment of the present invention. FIG. 2 is a top cross-sectional view of one embodiment of the granular material distribution apparatus of the present invention used in the shifter shown in FIG. Note that the granular material distribution device shown in FIG. 1 is a side sectional view taken along line AA of the granular material distribution device shown in FIG.

The shifts 10 shown in these figures are obtained by uniformly distributing particles such as flour, and in the case of this embodiment, distributing the particles equally into three groups. A sifter body 12 for sieving the powders and granules distributed to the group at the same time, a vibration generating means (not shown) for vibrating the shifter body, PC drawing 2/10339

7

And a powder / particle distributing device 14 for evenly distributing the bodies into three groups and supplying the same to the shifter body 12.

In the shifter 10 shown in the figure, first, the powder material distribution device 14

When the shifter main body 12 is vibrated by the vibration generating means, it is vibrated at the same time, and the powder is distributed into three groups and supplied to the supply port of the powder in each section of the shifter main body 12. An installation table 16 is arranged on the upper surface of the shifter body 12, and is installed on the installation table 16. In addition, the installation table 16 may be configured to be separated from or integrated with the powder material distribution device 14.

The granular material distribution device 14 basically includes a conical distribution table 18 and a distribution table 18.

, A hollow cylindrical distribution tube 2 2 which is arranged around the center, that is, coaxially above the distribution table 18, forms a storage room 20 for the powder and granules together with the distribution table 18, and functions as a weir plate. A hollow cylindrical supply cylinder 24 arranged around the center of the distribution table 18, that is, coaxially at the top of the distribution table 18, for introducing the granular material into the storage chamber 20; A hollow cylindrical outer peripheral wall 26 covering the outer circumferences of the distribution table 18, the distribution cylinder 22 and the supply cylinder 24 is provided.

Here, the distribution table 18 has a conical shape in the illustrated example, but may have a disk shape. It should be noted that the cone-shaped distribution table is more preferable than the disk-shaped distribution table because the powders are urged toward the outer peripheral wall 26 and are discharged quickly.

The hollow cylindrical outer peripheral wall 26 is provided with a ceiling part 27a having a circular opening at the center of the upper part, and the outer peripheral wall 26 and the ceiling part 27a are provided with a bottomed cylindrical casing. A conical distribution table 18 is installed coaxially on the bottom surface of the bottomed cylindrical casing 27, and a hollow cylindrical distribution cylinder is provided above the distribution table 18. 22 are arranged coaxially. Above the distribution table 18, the supply cylinder 24 for introducing the granular material into the storage chamber 20 is arranged so that the supply cylinder 24 is coaxially arranged with the distribution cylinder 22 so that the ceiling 2 of the casing 2 7 is disposed. It is inserted into the circular opening of 7a, and is preferably attached to the ceiling 27a so as to be vertically movable.

The upper end of the supply tube 24 extends outside the casing 27, that is, above the ceiling portion 27a attached to the outer peripheral wall 26, and can absorb vibration caused by vibration. Through a flexible hollow member, for example, it is connected to a discharge port of a granular material such as a hopper or a screw feeder. The powder stored in the hopper and the powder transported by the screw feeder are introduced into the storage chamber 20 of the powder distributor 14 via the supply tube 24. The storage room 20 is a space for temporarily storing the powder and granules, the upper surface of the distribution table 18 being the bottom surface, and the inner wall of the distribution cylinder 22 functioning as a weir as the inner wall. You.

Also, the outer diameter of the supply cylinder 24 is smaller than the inner diameter of the distribution cylinder 22, and the lower end of the supply cylinder 24 is higher than the distribution table 18, and is equal to or less than the upper end of the distribution cylinder 22. (The position of the upper end of the distribution tube 22 or a position lower than it). That is, the lower end of the supply tube 24 is disposed in the distribution tube 22. As a result, the granular material that has fallen into the storage chamber 20 comes into contact with the lower end of the supply cylinder 24. In this state, if the granular material distribution device 14 is vibrated, Granules can be more effectively leveled in the storage chamber 20. In other words, even if the granular material drops eccentrically at a large mass flow rate, the phenomenon that a large amount of the granular material flows in a specific direction by the momentum is suppressed, and the uniformity of the discharge around the entire circumference is maintained. For this reason, in the granular material distribution device 14 of the present invention, a plurality of annular materials such as the granular material distribution machine disclosed in Japanese Patent Application Laid-Open No. 11-208856 No dams are required.

In the case of the illustrated example, an adjusting means 28 for adjusting the height of the lower end of the supply tube 24 is provided as a preferred embodiment. By providing the adjusting means 28 on the ceiling 27 a of the casing 27, the height of the lower end of the supply cylinder 24 is appropriately adjusted according to the type and flow rate of the powder and the like, and There is an advantage that the distribution accuracy of the granules can be optimized. Of course, without providing the adjusting means 28, the supply cylinder 24 is attached to the ceiling 27a of the casing 27, and the height of the lower end of the supply cylinder 24 is set within the above range. You may make it fix to a position.

It is preferable that the upper end of the distribution cylinder 22 is formed in a corrugated shape, and the notches of the plurality of corrugations are formed uniformly. Here, the lower end of the supply tube 24 is preferably located above the lower end of the cutout of the waveform at the upper end of the distribution tube 22, that is, the upper end of the distribution tube 22 (notch Preferably, it is located between the upper end) and the lower end of the notch. By doing so, the powder particles stored in the storage chamber can be uniformly discharged from the plurality of corrugated notches formed at the upper end of the distribution cylinder 22.

Further, as shown in the illustrated example, the lower end of the distribution tube 22 is separated from the distribution table 18 by a predetermined distance, and a slit 30 extending over the entire lower end of the distribution tube 22 between the distribution table 18 and the distribution table 18. Is preferably provided.

The shape of the upper end of the distribution cylinder 22 is not limited to the waveform shown in the illustrated example, and may be any shape, and may be a flat shape without a slit-shaped notch. Is preferably formed. As the notch, for example, a notch that is wider toward the top, such as a waveform notch or a V-shaped notch in the illustrated example, More preferably, a number is provided. In this manner, by providing a plurality of notches wider at the upper end of the distribution cylinder 22 at the top, the powder surface height between the supply cylinder 24 and the distribution cylinder 22 at a large mass flow rate Even if the water level rises, the actual opening area for powder outflow increases, and the total mass discharge speed can be increased while ensuring uniform discharge around the entire circumference.

Further, the predetermined interval of the slit between the distribution table 18 and the distribution tube 22 may be appropriately determined according to the type of the granular material, but is usually preferably about 4 to 3 Omm. In this way, by providing a slit over the entire circumference between the distribution table 18 and the lower end of the distribution tube 22, at the time of the distribution of the powder, the powder is placed at the bottom of the storage chamber 20. This has the advantage that it can be prevented from staying and that the entire amount can be discharged from the device immediately after the supply of the large-mass-rate granular material.

On the side surface of the outer peripheral wall 26, there are provided three outlets 32 for the powder and granules corresponding to the three equally distributed groups, respectively. A hollow arm 34 having a predetermined angle of inclination is connected to transport the powdery material after being distributed to the supply port of the powdery material of the shifter main body 12. The openings of the arms 34 and the supply ports of the shifter body 12 are connected by a flexible hollow member 36.

Here, between the outer wall of the side wall of the distribution cylinder 22 and the inner wall of the side wall of the outer peripheral wall 26, as shown in FIG. 8 are provided. By these partition plates 38, the space between the distribution cylinder 22 and the outer peripheral wall 26 is divided into three spaces corresponding to each of the three outlets 32. In these three spaces, the shape of the waveform at the upper end of the distribution cylinder 22 should be the same. T JP02 / 10339. The same applies to the case where a shape other than the waveform is formed.

The distribution cylinder 22 is fixed to the inner wall of the side wall of the outer peripheral wall 26 except for the position of the discharge port 32 by three fixing members 40 provided between the partition plates 38 adjacent to each other. Have been.

The ceiling 27 a (the upper surface of the casing 27) attached to the outer peripheral wall 26 has powder particles covered by the outer peripheral wall 26 and the ceiling 27 a (casing 27). In order to inspect the inside of the body distribution device 14, three transparent inspection windows 42 are provided corresponding to the three outlets 32 respectively.

In the shifter 10 of the illustrated example, the shifter main body 12 is, in the present embodiment, for example, a three-sieving section configured by stacking a sieve frame having a plurality of sieve nets having different meshes. It has. The shifter main body 12 is vibrated by the vibration generating means, and simultaneously sieves three groups of the granular materials supplied from the granular material distribution device 14 by three sieving sections. The powder and granules discharged from the shift main body 12 are supplied to the next process, for example, bagging.

The configuration of the shifter main body 12 is not limited at all, and any conventionally known shifter main body can be applied.

In the shifter 10 of the illustrated example, the granular material is introduced into the storage chamber 20 of the granular material distribution device 14 via the supply cylinder 24. The granular material distribution device 14 is simultaneously vibrated when the shifter main body 12 is vibrated by the vibration generating means, and due to this vibration, the granular material stored in the storage chamber 20 is moved to the distribution cylinder 22. It spills almost evenly from the cutout of the waveform at the upper end and the slit 30 between the distribution tube 22 and the distribution table 18 into three spaces separated by the partition plate 38. The vibration generated by the vibration generating means is preferably a horizontal rotational vibration in order to efficiently distribute the powder having a large mass velocity.

The three groups of powder particles spilled into the three spaces separated by the partition plates 38 pass from the three outlets 32 provided on the outer peripheral wall 26 via the arms 34 and the hollow members 36. Are supplied to the supply ports of the shifter body 12 respectively. Then, the sift body 1 12 is vibrated by the vibration generating means, and the three sieving sections sift the three groups of granules supplied from the granule distributor 14 at the same time.

Note that, in the above-described embodiment, a case is shown in which the powder and granules are equally distributed into three groups and sieved at the same time. However, the present invention is not limited to this. The granules may be distributed into any number of groups.

In addition, although an example of the shifter 10 in which the shifter main body 12 and the granular material distribution device 14 are combined is described, the present invention is not limited to this, and the granular material distribution device 14 is It may be used alone, or may be used in combination with another device other than the shifter body 12. In this case, when the vibration generating means is not provided as in the shifter main body 12, it is necessary to separately provide a vibration generating means for vibrating the powder material distribution device 14.

Here, Table 1 shows the results of actually distributing powders and granules into four groups using the powder and granules distribution apparatus of the present invention. table 1

The interval between the slits between the distribution table and the distribution tube was about 1 Omm, and the position of the lower end of the supply tube was 45 mm below the upper end of the distribution tube. The powder was a mixed powder of Yuki: Ossion: Flower (all manufactured by Nisshin Flour Milling Co., Ltd.) = 3: 1: 1. Then, from the state where the granular material is introduced into the storage room in advance, the supply of the granular material to the shifter and the operation of the shifter are simultaneously stopped, and then both are simultaneously operated for a specified time, The weight of the granules divided into four groups was measured.

As shown in Table 1, when the supply speed of the granular material is 4.4 tons Z hour (tZh) and the supply time is 60 seconds (s), the weight ratio of each of the intakes A, B, C, and D becomes It can be seen that the distribution is within ± 1% and that the distribution is very accurate.

On the other hand, when the supply speed of the granular material is increased, for example, when the supply speed is 27.0 tons Z and the supply time is 10 seconds, each of the intakes A, B, C, D The weight ratio varies up to ± 2%. This is because by increasing the feed rate, It can be inferred that the granular material introduced into the storage room of the granular material distribution device via the supply cylinder was eccentric, and that the impact caused a large amount of granular material to be distributed to the intake near the drop position. .

In any case, the distribution weight ratio of the granular material is about 2% or less, and when the granular material is distributed using the granular material distribution device of the present invention, the granular material is evenly distributed with extremely high accuracy. You can see that they can be distributed.

The above-described powder and granular material distribution apparatus and the shifter of the present invention are arranged such that the lower end position of the supply tube 24 is located below the upper end portion of the distribution tube 22, that is, the inside of the distribution tube 22. A plurality of corrugated notches are formed at the upper end of the distribution cylinder 22 to distribute the powder particles supplied from the supply cylinder 24 into the storage chamber 20 evenly. The present invention is not limited to the embodiment, and it is also possible to equip the lower end portion of the supply cylinder with a shock-absorbing member to evenly distribute the powder and granules supplied from the supply cylinder into the storage chamber.

FIG. 4 shows an embodiment of the powder and particle distribution apparatus provided with such an impact buffer plate. In addition, the granular material distribution device 50 shown in FIG. 4 is attached to the granular material distribution device 14 shown in FIG. 1, the configuration (shape) of the supply cylinder 57, and the lower end of the supply cylinder 57. Except for the shock-absorbing members (the shock-absorbing net 55 and the shock-absorbing plate 56), it has the same configuration in its basic device configuration, and a detailed description of the same configuration is omitted. Mainly, the different parts will be described in detail. '' As shown in the figure, the powder and granular material distribution device 50 has a bottomed cylinder having a ceiling 51 c having a circular opening at the upper center and a hollow cylindrical outer peripheral wall 51 d. A conical distribution table 5 2 is installed coaxially on the bottom surface of the Above the table 52, a hollow cylindrical distribution cylinder 53 is coaxially arranged, and the distribution table 52 and the distribution cylinder 53 form a storage chamber 54 into which the granular material is introduced. Further, the upper end of the distribution tube 53 is formed in a waveform, that is, a plurality of notches of a waveform are formed in the upper end, and a gap is formed between the entire circumference of the lower end of the distribution tube 53 and the distribution table 52. A slit 60 for discharging the powder is provided.

Above the distribution table 52, a supply cylinder 57 for introducing the powder into the storage chamber 54 is arranged coaxially with the distribution cylinder 53. It is inserted into the circular opening of the ceiling 51c and is attached or fixed to its edge. The supply cylinder 57 is formed by a cylindrical guide cylinder 58 at the upper part of the circular opening of the ceiling part 51 c and a reduced diameter part 51 e at the lower part.

An impact buffer plate 56, which is one of the impact buffer members of the present invention, is horizontally attached to the lower end of the supply cylinder 57. In the illustrated example, the ceiling part 51 c of the casing 51, the reduced diameter part 51 e at the lower part of the supply cylinder 57, and the shock absorbing plate 56 are integrally formed. It is not limited to.

Here, the lower end of the supply cylinder 57, and thus the shock absorbing plate 56 attached thereto, is similar to the supply cylinder 24 and the distribution cylinder 22 shown in FIG. , That is, at or below the upper end of the distribution tube 53. In other words, the supply cylinder 57 and the distribution cylinder 57 are positioned so that the lower end (impact buffer plate 56) of the supply cylinder 57 is located between the upper end and the lower end of the waveform cutout of the distribution cylinder 53. Tube 53 is arranged.

As described above, the shock absorbing plate 56 is horizontally disposed at the lower end of the supply cylinder 57, and the shock absorbing net 55 is further provided a predetermined distance above the shock absorbing plate 56. The shock absorbing plate 56 is arranged in a position away from the shock absorbing plate 56.

Here, the shock absorbing net 55 and the shock absorbing plate 56 are located anywhere in the lower end portion of the supply cylinder 57, between the supply cylinder and the storage room composed of the distribution cylinder and the distribution stand. Although it may be installed anywhere, it is preferably disposed between the upper end of the distribution tube 53 (the upper end of the cutout of the waveform) and the lower end of the cutout. Only one may be arranged between the upper end and the lower end of the cutout of the waveform.

In the illustrated example, two shock-absorbing nets 55 and a shock-absorbing plate 56 are attached as impact-absorbing members, but the present invention is not limited to this, and only one of them is attached. There may be. Also in this case, it is preferable that the shock absorbing member is arranged between the upper end and the lower end of the cutout of the waveform at the upper end of the distribution cylinder 53.

Further, as the shock absorbing member of the present invention, an impact absorbing net 55 or an impact absorbing plate 56 is preferable, but not limited thereto.

Here, as shown in FIG. 5, the shock absorbing net 55 has a net portion 55 b stretched in an annular frame 55 a, and an outer peripheral portion of the frame 55 a is a ceiling of the casing 51. It is fastened and fixed by screws 59 while being clamped between the flange 51b projecting from the inner periphery of the central opening of the part 51c and having its diameter reduced and its holding flange 51a. I have. The size (outer diameter) of the mesh portion 55 b of the shock absorbing net 55 is such that all the particles from the guide cylinder 58 of the main cylinder 57 are formed by the net portion 55 b of the shock absorbing net 55. The larger the better, the smaller the inner diameter of the distribution cylinder 53 is. If only the shock absorbing net 55 is attached to the lower end of the supply cylinder 57, the size of the net 55b of the shock absorbing net 55 will be distributed. The inner diameter of the cylinder 53 must be smaller than that of the cylinder 53, and the shock absorbing net 55 needs to be located inside the distribution cylinder 53.

In the figure, 55 c indicates a screw hole used when attaching the shock absorbing net 55. Further, the shock absorbing network is preferably an example shown in the figure, but is not limited to this example in the present invention, and various types may be used according to the type of the granular material, the processing amount, the processing speed, the device configuration, and the like. good.

As shown in FIG. 6, the shock absorbing plate 56 has a large-diameter hole 56a formed in the center thereof, penetrating the front and back, and a large-diameter hole 56a penetrating the front and back in the outer periphery. A large number of elongated holes 56 b are formed, which are inclined in the radial direction around the center, and a small-diameter hole 56 c that penetrates the front and back surfaces between the large-diameter hole 56 a and the long hole 56 b. Are formed circumferentially. Here, the size of the shock-absorbing plate 56; that is, the diameter of the outer envelope circle of the long hole 56b is the same as the diameter of the guide cylinder 58 of the supply cylinder 57 The larger the better, the smaller the inner diameter of the distribution cylinder 53 is preferable, so that the large diameter hole 56a, the many long holes 56b, and the many small holes 56c are formed. In addition, as shown in the example in the figure, the shock absorbing plate 56 is horizontally mounted on the lower end of the supply cylinder 57, and the shock absorbing net 55 and the shock absorbing plate 56 are arranged vertically in parallel, When mounting only the shock absorbing plate 56 horizontally on the lower end of the supply cylinder 57, the size of the shock absorbing plate 56 must be smaller than the inner diameter of the distribution cylinder 53. However, it must be located inside the distribution tube 53. However, when the shock absorbing net 55 and the shock absorbing plate 56 are arranged in an overlapping manner, it is preferable that the shock absorbing net 55 be located inside the distribution tube 53, but this is not a limitation. Absent.

In addition, long? When the distribution cylinder 53 is rotated and vibrated, the inclination direction of It is good to match with the direction of rotation.

Although not shown in FIG. 6, the shock absorbing plate 56 is integrated with the ceiling 51 c of the casing 51 and the reduced diameter portion 51 e of the lower part of the supply cylinder 57 as shown in FIG. Although these parts are formed separately, these parts may be formed separately and fixed with fixing members such as screws.

In addition, the shock absorbing plate is preferably an example shown in the drawings, but is not limited to this example in the present invention, and various types may be used according to the type of the granular material, the processing amount, the processing speed, the device configuration, and the like. .

The outer peripheral wall 5 1d of the casing 51 has four outlets 6 1 for the powder and granules corresponding to the four equally distributed groups, respectively. A hollow arm 62 having a predetermined inclination angle is connected to transfer the evenly distributed powder to the powder / particle supply port of the shift main body 65 through the hollow member 63. In the drawing, reference numeral 64 denotes a table on which the powdery and granular material distribution device 50 is installed.

Since the powder material distribution device 50 is configured as described above, when the powder material is introduced into the storage chamber 54 from the supply cylinder 57, the powder material is first subjected to the shock absorbing net 55 After passing through the mesh, it collides with the shock absorbing plate 56, passes through the large-diameter hole 56a, the long hole 56b, and the small-diameter hole 56c, and is introduced into the storage chamber 54. You.

In other words, even when the granular material is introduced into the storage chamber 54 at a large mass velocity, the granular material collides with the impact buffer net 55 and the impact And the powder is finely dispersed when passing through the meshes and pores 56a to 56c, so that the powder in the storage chamber 54 does not form lumps and its fluidity is reduced. It will be promoted and effective distribution will be performed effectively and with high precision. In addition, such The effect can be expected even when only one of the shock absorbing network 55 and the shock absorbing plate 56 is used as the shock absorbing member as described above.

For example, FIG. 7 shows the result of distributing powders and granules into four groups using the powder and granules distributor 50.

In Fig. 7, the abscissa represents the supply speed of the granular material, and the ordinate represents the distribution ratio to the four groups. In addition, 〇 indicates that only the shock-absorbing plate 56 is provided, and Δ indicates that only the shock-absorbing network 55 is provided. As is evident from Fig. 7, when the shock absorbing member is provided, the dispersion for the 25% line of the uniform distribution ratio is smaller than when the shock absorbing member is not provided, and the uniform distribution ratio is improved. You can see that

As mentioned above, although the granular material distribution apparatus and the shifter of the present invention have been described in detail, the present invention is not limited to the above-described embodiment, and various improvements and changes may be made without departing from the gist of the present invention. Of course it is good. '' Industrial applicability

As described in detail above, according to the present invention, the lower end of the supply tube is set to be equal to or lower than the upper end of the distribution tube. Or at a high mass velocity because an impact buffering member is provided between the supply cylinder and the storage chamber composed of the distribution cylinder and the distribution table (at the lower end of the supply cylinder). Even when the mass velocity of the powder is largely fluctuated, the powder can be equally distributed with high precision.

Further, the structure of the granular material distribution device of the present invention is simple. In the case of the shifter of the present invention which is used by being installed on the upper surface of the shifter main body, the vibration generating means of the powder and particle distributing apparatus and the vibration generating means of the shifter main body can be used in common. Is also inexpensive.

Claims

The scope of the claims

1. A disk-shaped or conical distribution table,

A distributing cylinder disposed coaxially on an upper part of the distributing table, and forming a storage chamber for the granular material together with the distributing table;

The outer diameter is set smaller than the inner diameter of the distribution tube, and the lower end portion is disposed coaxially with the distribution tube so that the lower end portion is located in the distribution tube, and the powder is introduced into the storage chamber. A supply cylinder,

A plurality of outlets are formed to individually discharge the granules passing through the distribution cylinder from the storage chamber to the outside from the distribution table, and include a distribution wall and an outer peripheral wall covering an outer periphery of the distribution cylinder. A granular material distribution apparatus characterized by the above-mentioned.

2. The granular material distribution device according to claim 1, wherein a plurality of notches are formed in an upper end portion of the distribution cylinder in a circumferential direction.

3. The granular material distribution device according to claim 2, wherein each of the plurality of cutouts is formed wider as going upward.

4. The lower end of the supply cylinder is disposed at a position between an upper end of the distribution cylinder and a lower end of the plurality of cutouts. Powder and granular material distribution device.

5. The powder and grain distribution device according to any one of claims 1 to 4,

Further, a disk-shaped ceiling portion having a circular opening at the center is provided at an upper end portion of the outer peripheral wall,

The powder supply device is characterized in that the supply cylinder is attached to a ceiling of the outer peripheral wall so as to penetrate the circular opening.

6. The granular material distribution apparatus according to any one of claims 1 to 5,

Further, a height adjustment means for positioning the lower end of the supply cylinder in the distribution cylinder and adjusting the height of the lower end of the supply cylinder is provided.

7. The granular material distribution device according to any one of claims 1 to 6, wherein

Further, the powder and particle distribution device is provided with an impact buffering member having a plurality of through holes attached to a lower end of the supply cylinder.

8. The powder and granular material distribution device according to claim 7, wherein the shock absorbing member is attached so as to cover a lower end portion of the supply cylinder.

9. The apparatus according to claim 7, wherein the shock absorbing member includes a shock absorbing net formed in a mesh shape.

10. The shock absorbing member includes a central opening, a plurality of circles as the plurality of through holes. 9. The granular material distribution device according to claim 7, further comprising: an impact buffer plate having a through-hole and a plurality of inclined through-holes inclined radially from the center thereof.

11. The shock-absorbing member includes a mesh-shaped shock-absorbing net, a plurality of through-holes, a central opening, a plurality of circular through-holes, and a plurality of slopes inclined radially from the center thereof. A shock absorbing plate having a through-hole,

9. The apparatus according to claim 7, wherein the shock absorbing plate is disposed below the shock absorbing net.

12. The granular material distribution device according to claim 11, wherein the shock absorbing plate is located in the distribution cylinder.

13. When a plurality of notches are formed in the upper end of the distribution tube in the circumferential direction, the shock absorbing plate is provided between the upper end of the distribution tube and the lower end of the plurality of notches. 13. The granular material distribution device according to claim 11, wherein the granular material distribution device is arranged at a position.

1 4. The powder and granular material distribution device according to any one of claims 1 to 13, further comprising: between the lower end of the distribution tube and the distribution table, around the lower end of the distribution tube. A granular material distribution device comprising a slit provided over the entire surface.

15. The dimension of the slit between the lower end of the distribution cylinder and the distribution table is: 15. The powder and granular material distribution device according to claim 14, wherein the particle size is 4 to 30 mm.

16. The granular material distribution device according to any one of claims 1 to 15, further comprising vibration generating means for causing the granular material distribution device to vibrate. .

17. A single shifter that sifts through powders distributed in multiple groups simultaneously;

Vibration generating means for vibrating the shifter body,

The shifter main body is installed on an upper surface portion of the shifter main body, and is vibrated at the same time as the shift main body is vibrated by the vibration generating means, and the powder and granules are distributed to the plurality of groups and supplied to the shifter main body. Item 1. A shifter comprising the powder / particle distribution device according to any one of Items 1 to 16.