JPS6127618Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a powder mixer that is an improved rotary container type mixer.

Conventional container-rotating type mixers literally give rotation to containers of various shapes, and they form a particle circulation path, and are mixed only by the mixing and diffusion that occurs when particles change their path. Even if the shape of the container changes, such as a heavy cone, cube, Y-shape, V-shape, etc., it is only a single rotation around one axis, and it is possible to perform three-dimensional bending by simply changing the shape. Therefore, proper mixing performance could not be expected. Moreover, there is nothing that actively changes this, and such machines inevitably suffer from the drawbacks of increased installation space and machine weight.

This idea was developed in view of the above, and the particle circulation path caused by the rotation of the container in a container-rotating mixer repeats forward and reverse rotational movements such as rotations or half-rotations about the support shaft of the container. The degree of mixing,
The mixing time is shortened so that a high performance and good mixing state can be obtained.

The powder and granular material mixer of this invention will be described below with reference to the drawings. 1 is composed of a plurality of (two) annular frames 3 surrounding several (four) trochanters 2 at equal intervals. The rotating cage 1 is connected by (four) connecting rods 4 and is configured in a cage shape. It is rotatably mounted on a support stand 5. In this case, one of the support shafts 7 also serves as a cage drive shaft, and the other support shaft 7' is a hollow shaft into which a mixing cylinder drive shaft 8 (to be described later) is inserted and supported. It is integrally fixed to the rod 4). As shown in FIG. 3, a mixing cylinder drive shaft 8 is rotatably inserted and supported within the support shaft 7' of the hollow shaft through a bearing. Further, chain wheels 9 and 10 are fixed to the outer ends of the support shaft 7 and the mixing cylinder drive shaft 8, respectively, and each output side chain wheel of the forward/reverse rotation power device 11 and the rotary power device 12 installed at the lower part of the support base 5. Adjustable chains 13 and 14 are entwined and connected between and the chain wheels 9 and 10, respectively. Further, a small bevel gear 20 is wedged to the inner end of the mixing cylinder drive shaft 8. Reference numeral 15 denotes a regular octagonal cylindrical mixing barrel, on which circular guide shafts 16, 16 are generally attached to the outer circumferential surfaces of both left and right sides, and a large bevel gear 19 is generally attached to the outer circumferential surface of the central portion. Reference numeral 17 denotes an opening/closing lid with a viewing window and outlet 18 for the mixing barrel 15. Therefore, the mixing barrel 15 is inserted into the rotating cage 1 and is rotatably engaged and supported by each of the trochanters 2. Also, the small bevel gear 20 at the inner end of the mixing cylinder drive shaft 8 and the mixing cylinder body 15
The large bevel gear 19 is meshed with the large bevel gear 19. That is, a power mechanism for rotating the rotating cage 1 forward and backward about the support shafts 7 and 7', and a power mechanism for rotating the mixing barrel 15 about its central axis within the rotating cage 1, are provided. The mixing barrel 15 has a rotation cage 1 that rotates around its central axis and a rotating cage 1 that rotates around the support shafts 7 and 7'.
It is designed to give forward and reverse repeated rotation with . In the embodiment, a cam is attached to the rotating cage 1, and the rotation of the mixing barrel 15 can be stopped at a predetermined angular position by the action of an appropriately arranged limit switch, and can be rotated forward or reverse at an arbitrary rotation speed by a counter set. It's like this. Furthermore, as another example, a timer can be used to stop the forward/reverse rotation power device 11 and the rotary power device 12 after a set time. In the above-described embodiment of the drawings, a forward/reverse power device 11 is used as a power mechanism for rotating the rotating cage 1 around its support shafts 7, 7'.
A case is shown in which the mixing barrel 15 is given rotation about its central axis and repeated forward and reverse rotation with the rotating cage 1 about the support shafts 7 and 7'. However, as a power mechanism for rotating the rotation cage 1 about the support shafts 7 and 7', it is of course possible to use a rotation power device that performs forward rotation in only one direction. The mixing barrel 15 is given rotation about its central axis and continuous rotation in one direction together with the rotation cage 1 about the support shafts 7 and 7'.

Next, the operating state of this embodiment of the powder mixer will be described. First, the forward/reverse rotation power unit 11 is driven to bring the opening/closing lid 17 of the mixing barrel 15 to an appropriate upper position. Then, powder and granular materials to be mixed are placed and stored in the mixing barrel 15. Then, set the timer, and turn on the forward/reverse rotation power unit 11 and the rotary power unit 1.
Turn on the second switch. Then, the mixing cylinder 15 becomes
While rotating around its central axis, the whole unit, together with the rotating cage 1, repeats forward and reverse rotation around the central support shafts 7, 7' for an appropriate period of time to mix the powder and granules inside. When the mixing is finished, a timer operates to stop both power units 11 and 12, and the mixing cylinder 15
The opening/closing lid 17 rotates to an obliquely downward ejection angle and stops at an angle. Then, the viewing window/takeout port 18 is opened to perform discharge and takeout. When the discharge is completed, the mixing barrel 15 is returned to the initial loading position. It goes without saying that the forward and reverse repetitive rotation of the mixing barrel 15 can be performed by setting the forward and reverse rotation power unit 11 at an arbitrary rotation angle of one revolution or less. Furthermore, the central support shafts 7, 7' on both sides of the rotating cage 1 may be perpendicular to or oblique to the central axis of the mixing barrel 15. Further, in the illustrated embodiment, a bevel gear transmission mechanism is used as the transmission mechanism interposed between the mixing cylinder drive shaft 8 and the mixing cylinder body 15, but other types such as a screw gear transmission mechanism or a friction wheel transmission mechanism are also used. You can also use

The powder and granular material mixer of this invention is as described above, and the mixing cylinder 15 is rotated about its central axis, and at the same time, the rotating cage 1 is rotated about the central support shafts 7, 7'. For example, if the rotation of the mixing barrel 15 together with the rotary casing 1 is repeated forward and reverse rotation, the mixing barrel 1
5 repeats the movement of rotating at an arbitrary angle from an arbitrary position and returning to its original position, the circulation path of the particles of powder and granular material generated in the mixing cylinder 15 is actively given a large number of accumulations, resulting in a high level of excellence. It has an outstanding effect of improving mixing performance and improving mixing degree and mixing time. Also, the mixing cylinder 15
When the rotation with the rotating casing 1 is continuous rotation in one direction, the mixing barrel 15 does not stop during the rotational displacement process with the rotating cage 1, and the center axis of the mixing barrel 15 itself Since the relative direction of rotation about the axis changes dimensionally and periodically, it has the great effect of providing continuous and highly efficient mixing through extremely rational stirring.

Further, as described above, the mixing barrel 15 has the supporting shaft 7,
It can be rotated and stopped around axis 7' in the vertical position at the loading position and the tilted position at the discharge angle position, which is extremely useful as it allows easy loading and unloading of powder and granular material.
Furthermore, since the mixing barrel 15 has a structure that can be inserted into and supported by each annular frame 3 and built into the rotating cage 1, it can be used for general purposes from small to large depending on the capacity, and is smaller than the conventional uniaxial rotating container type. This has the advantage of being able to provide stable rotational motion and a positive action.

[Brief explanation of the drawing]

The drawings show an embodiment of the powder and granular material mixer of this invention, in which Fig. 1 is a front view, Fig. 2 is a left side view, and Fig. 3 is an enlarged cross-sectional plan view of the mixing barrel transmission mechanism. . 1... Rotating cage, 2... Trochanter, 3... Annular frame, 4... Connecting rod, 5... Support stand, 6, 6'...
Bearing, 7, 7'... Support shaft, 8... Mixing cylinder drive shaft,
9, 10... Chain wheel, 11... Forward/reverse power unit, 1
2... Rotating power device, 13, 14... Control, 15
...Mixing barrel, 16...Guide ring, 17...Opening/closing lid, 18...Viewing window and outlet, 19...Large bevel gear,
20...Small bevel gear.

Claims (1)

[Scope of utility model registration request] The rotation cage 1 is connected to a support shaft 7 approximately in the center on both sides thereof.
7' is supported and rotatably mounted on the support stand 5, the mixing barrel 15 is rotatably inserted and supported within the rotating cage 1, and the rotating cage 1 is supported on the support shafts 7, 7'.
a power mechanism that rotates the mixing cylinder 15 as an axis;
The mixing barrel 15 is provided with a power mechanism for rotating the rotating cage 1 about its central axis in the rotating cage 1, and a power mechanism for rotating the rotating cage 1 about its central axis and about the supporting shafts 7 and 7'. A powder mixer characterized in that it provides rotation with