JPH0560976B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to a rotating container type mixer, and more specifically, the rotating shaft of the rotating container is installed horizontally and the rotating container is rotated to remove powder particles in the container. This invention relates to a rotating container type mixer for mixing bodies.

(Prior art) As one type of this type of mixer, there is a horizontal cylindrical mixer in which the center axis of a cylindrical container is installed horizontally, and the container is rotated using the same axis as the rotation axis to mix powder and granular materials. It is widely used in practical applications.

In such a horizontal cylindrical mixer, as the container rotates, a circulating flow of the powder and granules occurs in the radial direction, and in the axial direction, the powder and granules move due to diffusion, and mixing progresses. Since the mixing speed in the axial direction is extremely slow compared to the mixing speed of The structure is such that convection occurs.

(Problems to be Solved by the Invention) When a stirring blade is provided inside a cylindrical container as in the above-mentioned conventional horizontal cylindrical mixer, the stirring blade gets in the way and makes it difficult to clean the inside of the container. Not only is it difficult to clean the blades, but powder particles can easily adhere to the blades and remain inside.

In addition, when swinging the cylindrical container to generate axial convection in the powder, a swinging mechanism is required in addition to the rotating mechanism for the cylindrical container, making the overall structure of the device large.
It becomes complicated and costs rise unavoidably.

In view of the above problems, it is an object of the present invention to provide a rotating container type mixer that allows easy cleaning of the inside of the container and has a high mixing speed.

(Means for Solving the Problems) In order to achieve the above object, a rotating container type mixer according to claim 1 has a pair of rotary container mixers each having a substantially oval cross-sectional shape and having one end face closed and the other end face open. The open end surfaces of the cylindrical containers are connected so that the central axes of both containers are aligned with each other and the major axes of the substantially oval shapes are substantially orthogonal to each other to communicate the two containers, and the both open end surfaces are connected to the circumferential surface of each container. A pair of communicating ports are formed that include edges that define connecting surfaces of the container and extend along the central axis direction, and the communicating port of one container and the non-connecting surface of the opening end surface of the other container adjacent thereto are formed. a gutter-like cover having an arcuate cross-sectional shape and whose diameter gradually decreases in accordance with the distance from the non-connecting surface to form a communication path that communicates the two containers, and The container is characterized in that the central axis is installed horizontally and both containers are rotated using the same axis as a rotation axis.

Further, the rotating container type mixer according to claim 2 includes a pair of cylindrical containers having one end surface closed and the other end surface open, whose open end surfaces are connected to each other such that the central axes of both containers are parallel to each other. A communication port is formed on the circumferential surface of each container that includes an edge defining a connecting surface of both opening end surfaces and extends along the central axis direction, and the communication port of one container and this The non-contacting surface of the open end surface of the other container adjacent to the container is covered with a gutter-like cover having an arcuate cross-sectional shape and the diameter of the arcuate portion gradually decreasing in accordance with the distance from the non-contacting surface. The present invention is characterized in that a communication path is formed to communicate the two containers, and the central axis of the connecting surface is set horizontally, and both containers are rotated about the same axis as a rotation axis.

(Operations and Effects of the Invention) According to the rotating container type mixer according to claim 1, the powder and granules slide down on the communication path from one container to the other container every time the rotating shaft rotates 90 degrees. Move to. Further, according to the rotary container type mixer according to the second aspect of the present invention, the powder and granular material slides down on the communication path and moves from one container to the other container every time the rotating shaft rotates 180 degrees. Due to this movement, forced convection occurs in the powder and granules in both the horizontal and vertical directions, so that mixing of the powder and granules progresses rapidly.

However, according to the present invention, unlike conventional devices, stirring blades and a rocking mechanism for the container are not required to generate horizontal convection, so the structure can be made simple and compact, and the inside of the container can be cleaned easily. It's easy to do.

Moreover, since each container has a geometrically simple cross-sectional shape, manufacturing is easy and costs can be reduced.

Furthermore, the powder and granules do not fall vertically from one container to the other, but slide diagonally downward through the communication path, so the impact applied to the powder and granules during mixing is small, and the powder and granules are Damage to particles can be suppressed.

(Embodiment) The invention set forth in claim 1 will be described below based on the drawings. FIG. 1 shows a rotating container type mixer according to an embodiment of the present invention. The mixer includes a pair of cylindrical containers 1 and 2, a pair of ring members 3 and 4 fixed to the outer periphery of each container 1 and 2 so as to surround each container 1 and 2, and frictional contact with the ring members 3 and 4. A pair of drive rollers 5 and 6 are provided for rotating each container 1 and 2.

As shown in FIGS. 2 and 3a and 3b, each container 1, 2 has a substantially oval cross section consisting of a rectangular portion S1 and a semicircular portion C1 having a pair of opposing sides of the rectangular portion S1 as chords. One end face is closed with a truncated conical cover 1a, 2a, and the other end face is open.

The internal spaces of both containers 1 and 2 are formed by connecting the open end surfaces of each container so that the central axes O1 and O2 of each container are aligned with each other and the major axes D1 and D2 of the approximately oval cross sections are orthogonal to each other. A continuous surface on the opening end surface,
That is, they are communicated via the rectangular portion S1. Also,
A pair of triangular communication ports 1b, 2b are formed on the circumferential surface of each container 1, 2, including an edge defining a connecting surface S1, and extending along the central axes O1, O2,
The communicating ports 1b, 2b of one container 1, 2 and the non-contiguous surface, that is, the semicircular portion C1 of the open end surface of the other container 1, 2 adjacent thereto, are closed with gutter-like covers 7, 8, respectively, and both containers 1, 2 are closed. A communication path 7 that communicates the internal space of the
a, 8a (see FIG. 4) are formed. The covers 7 and 8 have an arcuate cross-sectional shape whose diameter gradually decreases in accordance with the distance from the non-contiguous surface.

On the other hand, the ring members 3 and 4 have their centers centered on both containers 1 and 2.
containers 1 and 2 so that they coincide with the central axes O1 and O2 of
It is fixed to the outer circumferential part of the body via bars 3a and 4a.

Further, an input port 1c is formed in the center of the truncated cone-shaped cover 1a of the container 1 and can be opened and closed by the lid 1d, and an outlet 2c (a second (see Fig. 4) is formed and closed in an openable and closable manner by a lid body 2d. and,
Both containers 1 and 2 are installed and operated on a base (not shown) so that their central axes O1 and O2 are substantially horizontal.

The present embodiment has the above-mentioned configuration, and the granular material P is put into the containers 1 and 2, the drive rollers 5 and 6 are started,
When both containers 1 and 2 are rotated about the central axes O1 and O2, as shown in FIG. 4 and FIG. 7 and 8 while alternately sliding down the communication path 7a,
It flows from one container 1, 2 to the other container 1, 2 through 8a. Due to this movement, forced convection occurs in both the horizontal and vertical directions in the powder P, so that mixing of the powder P progresses quickly.

According to this embodiment, unlike the conventional device, stirring blades and a swinging mechanism for the container are not required to generate horizontal convection in the powder P, so the structure can be made simple and compact. At the same time, the insides of the containers 1 and 2 are easy to clean.

Moreover, since the cross-sectional shapes of both containers 1 and 2 have a geometrically simple shape consisting of a rectangle and a semicircle, they are easy to process and can be manufactured at low cost.

Furthermore, according to this embodiment, the powder P does not fall vertically from one container 1, 2 to the other container 1, 2, but slides down diagonally downward along the communication paths 7a, 8a. The impact applied to the granular material during mixing is small, and therefore the particles of the granular material P are less damaged.

Although not shown in this example,
Scooping blades extending radially around the discharge port 2c are also provided inside the truncated conical cover 2a, and the container 2
It is also possible to configure the container 2 so that when the container 2 is rotated in a predetermined direction, the powder P inside the container 2 can be scooped up by the scooping blades and automatically discharged from the discharge port.

Next, the invention according to claim 2 will be explained based on the drawings. FIG. 6 shows a rotating container type mixer according to an embodiment of the invention. The mixer includes a pair of cylindrical containers 1, 1, one end of which is closed with a truncated conical cover 11a, 12a and the other end is open.
2. A ring member 13 fixed to the outer periphery of each container,
14, drive rollers 15 and 16 are provided which are in frictional contact with the ring members 13 and 14 and driven to rotate.

As shown in FIGS. 7 and 8, both containers 11,
The internal space of 12 has both open end surfaces connected to both containers 11 and 12.
The connecting surface S2 is formed by shifting the central axes O3 and O4 by a radius so that they are parallel to each other.
communicated via.

In addition, a connecting surface S2 is provided on the circumferential surface of each container 11, 12.
Triangular communication ports 11b and 12b are formed that include edges that partition the containers 11 and 12 and extend along the central axes O3 and O4 directions of the containers 11 and 12, respectively. The communication ports 11b, 12b of one container 11, 12 and the non-connecting surface of the open end surface of the other container 11, 12 adjacent thereto, that is, the crescent-shaped portion C in FIG. 8a.
2 with gutter-like covers 17 and 18, and both containers 1
Communication passages 17a, 1 that communicate the internal spaces of 1 and 12
8a (see FIG. 9) is formed. The covers 17, 18 have an arcuate cross-sectional shape and are formed such that the diameter of the arc gradually decreases in accordance with the distance from the non-contiguous surface.

On the other hand, the ring members 13 and 14 are connected to each container 11 and 1.
2 via bars 13a and 14a, and is attached so that its center coincides with the central axis O5 of the connecting surface S2. Each of the containers 10 and 11 is installed on a base (not shown) so that the center axis O5 is substantially horizontal.

Note that the truncated conical covers 11a and 12a have input ports 11c and 12c at their centers, respectively (see Figure 9).
are formed, and each opening 11c, 12c has a lid body 11d,
It is closed so as to be openable and closable at 12d.

This embodiment has the above configuration, and the drive roller 1
5 and 16 to rotate both containers 11 and 12, both containers 1 and 1 are rotated as shown in FIGS. 9 and 10.
Every time 1 and 12 rotate 180 degrees, the powder P alternately passes through the passages 17a and 18a to one of the containers 11 and 1.
2 into the other containers 11, 12, and at that time,
Forced convection occurs in the powder P in both horizontal and vertical directions, and mixing proceeds rapidly.

According to this embodiment, the internal structure is simple, the inside of the container is easy to clean, and the powder and granular material P
There is less damage to the particles. In addition, both containers 11,1
Since the cross-sectional shape of No. 2 is an extremely simple circle, it is easy to manufacture and can be manufactured at low cost.

In this embodiment, the distance between the central axes O3 and O4 of the containers 11 and 12 is set equal to the radius of the containers 11 and 12, but the distance may be larger or smaller than this.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a rotating container type mixer according to an embodiment of the invention as set forth in claim 1, FIG. 2 is an exploded perspective view showing a pair of containers provided in the mixer, and FIG. Figures 3a and 3b are schematic side views and plan views of both containers, Figure 4a is a vertical cross-sectional view of the mixer, and Figure 4b
is a sectional view taken along line B-B in Figure 4a,
Figure a is a longitudinal cross-sectional view of the mixer, Figure 5b is a cross-sectional view taken along line B-B in Figure 5a, and Figure 6 is an embodiment of the invention as set forth in claim 2. FIG. 7 is an exploded perspective view showing a pair of containers provided in the mixing machine; FIG. 8a is a perspective view showing a rotating container type mixer;
Fig. 9b is a schematic side view and plan view of both containers, Fig. 9a is a vertical sectional view of the mixer, and Fig. 9b is B of Fig. 9a.
10a is a longitudinal sectional view of the mixer, and FIG. 10b is a sectional view taken from line B of FIG. 10a.
It is a sectional view taken along line B. Explanation of symbols: 1, 2, 11, 12... cylindrical container, 1b, 2b, 11b, 12b... communication port,
7, 8, 17, 18...Gutter cover, 7a, 8
a, 17a, 18a...Communication path, O1, O2, O
3, O4, O5... Central axis, D1, D2... Long diameter, S1, S2... Connecting surface, C1, C2... Non-connecting surface.

Claims (1)

[Scope of Claims] 1. A pair of cylindrical containers each having a substantially elliptical cross-sectional shape with one end face closed and the other end face open, the central axes of both containers being aligned with each other, and the substantially elliptical shape a pair of communicating vessels connected so that their long axes are substantially orthogonal to each other to communicate the two containers, each of which includes an edge defining a connecting surface of both opening end surfaces on the circumferential surface of each container, and extends along the central axis direction. form the mouth,
The communication opening of one container and the non-contacting surface of the opening end surface of the other container adjacent thereto have an arcuate cross-sectional shape, and the diameter of the arcuate shape corresponds to the distance from the non-contacting surface. The container is covered with a gutter-like cover that gradually decreases in height to form a communication path that communicates both containers, and the center axis is installed horizontally, and both containers are rotated using the same axis as a rotation axis. Rotary container type mixer. 2 A pair of cylindrical containers, one end of which is closed and the other end of which is open, are connected so that the central axes of both containers are parallel to each other so that the two containers communicate with each other, and the two containers are connected to the circumferential surface of each container. A communication port is formed that includes an edge defining a connection surface of the opening end surface and extends along the central axis direction, and the communication port of one container and the non-connection surface of the adjacent opening end surface of the other container are formed in a circle. a gutter-like cover having an arcuate cross-sectional shape and whose diameter gradually decreases in accordance with the distance from the non-connecting surface to form a communication path that communicates the two containers; A rotating container type mixer characterized in that the central axis of the connecting surface is installed horizontally, and both containers are rotated using the same axis as a rotation axis.