JP3974685B2 - Powder and particle mixer - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a container rotating type mixer, and more particularly to a powder and particle mixer used for mixing raw materials such as pharmaceuticals, cosmetics, and other chemicals.
[0002]
[Prior art]
Various types of powder and particle mixers have been proposed and used. For example, Japanese Utility Model Laid- Open No. 05-002733 proposes an apparatus that holds a mixing container so as to be capable of rotating and revolving and that individually performs rotation and revolving. Japanese Utility Model Application No. 61-67830 proposes a twin-type mixer in which two self-rotating mixing cylinders inserted in a revolving rotating cage are connected via a valve.
[0003]
FIG. 6 shows an outline of the apparatus proposed in the former Japanese Utility Model Laid- Open No. 05-002733 . A revolving motor 31 and a rotating motor 32 provided in the apparatus main body 30 are coupled to an outer first rotating shaft 33 and an inner second rotating shaft 34, which are configured as double shafts, by belts 35 and 36, respectively. It is designed to rotate and revolve. The mixing container 37 is held by a lower holder 38 and an upper holder 39. The mixing container 37 can be exchanged, and when mixing is completed, it can be sent to the next process as it is and used and stored.
[0004]
[Problems to be solved by the invention]
In such a conventional powder and particle mixer, the mixing container rotates or revolves with its center coincident with the rotation axis, so there is a limit to increasing the stirring efficiency. In addition, since the structure is complicated, such as using a double shaft, the number of parts increases, the material cost increases, and the number of assembly steps increases. Furthermore, structural troubles (failures) were likely to occur. Further, when the mixing container is replaced, it is necessary to raise and lower the container to the attachment / detachment position. Usually, a dedicated instrument and device are required for raising and lowering the container separately from this machine. Furthermore, there are considerable restrictions on the size and shape of the mixing container that can be mounted. The object of the present invention is to provide an agglomerated powder mixer that has good stirring efficiency, is easy to manufacture, and is inexpensive. Further, there is no limitation on the size and shape of the mixing container, and the container can be replaced. An object is to provide an easy powder and particle mixer.
[0005]
[Means for Solving the Problems]
The powder and particle mixer of the present invention is a mixer in which a mixing container is rotated by a first rotating shaft and a second rotating shaft. From the axis of any of the first rotating shaft and the second rotating shaft orthogonal to the center of the mixing container. Is provided at a deviated position, and by rotating the first rotating shaft and the second rotating shaft, the center of the mixing container is not on the axis of the first rotating shaft or the second rotating shaft. The powder and particle mixer is characterized in that the mixing container is rotated to enable quick and uniform mixing in the mixing container.
[0006]
In the powder fluid mixer, the mixing container is held by a holder formed in a U shape by a holder main body fixed to the second rotating shaft and an elevating holder movable with respect to the holder main body . The holder has such a size that the holder body closes the raw material inlet of the mixing container, and the lifting holder moves according to the feed screw. Holding of the mixing vessel by holders, the mixing vessel not only the singular, can be held to each other in series or in parallel.
[0007]
Moreover, Te the紛流body mixer smell, first rotation axis and the second axis of rotation, each provided with a first rotary shaft electric motor and a second rotational shaft electric motor, the motor for the first rotary shaft and second rotary the axial electric motor may each Ru is provided a rotational connection噐. The rotary connection rod here is in the connected state even during rotation for power supply to the first rotary shaft motor and second rotary shaft motor, heating of the mixing container, air supply, deaeration, liquid supply, etc. Slip rings and rotary joints having a function of maintaining
[0008]
Since the electric motor for the first rotary shaft or the second rotary shaft rotary shaft and the holding gap adjusting motor of the holder can be controlled by an electric circuit, a series of operations of mixing container gripping, rotary mixing, and mixing container removal and replacement are automated. is there.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a front view of the powder and particle mixer of the embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along the line AA when the mixing container 18 is rotated 90 degrees from the state of FIG. As seen in these drawings, the powder and particle mixer of the present invention has a substantially U-shaped frame 2 attached to a first rotating shaft 14 supported by a main body case 10 via a bearing 9, Near the middle of the frame 2, a second rotary shaft 6 is provided so as to be orthogonal to the first rotary shaft 14 via a bearing 7. The frame 2 is provided with a balance weight 15 to enable balanced rotation. The other side of the frame 2 is provided with an auxiliary shaft 20 and supported by a bearing 21 with respect to the rotation support base 1.
[0010]
A second rotation axis 6 is a first rotation axis 14, second rotational shaft electric motor 8 can rotate each separately and are provided with a first rotary shaft electric motor 11, the transmission by bevel gear 4 And the transmission 13 is connected. Bevel gears, the second rotation axis 6 and the feed even during rotation of the electric motor by the rotary connector 5 and the rotary connector 12 provided on the first rotation axis 14, air supply, has a possible liquid supply or the like, The rotary connector 12 also secures power supply means to the second rotary shaft motor 8, and the rotary connector 5 can add functions such as heating of the raw material or spraying of the additive liquid.
[0011]
In such a powder and particle mixer of the present invention, the mixing container 18 is provided at a position deviated from the axial center of either the first rotating shaft 14 or the second rotating shaft 6. That is, the mixing container 18 is held in a state where the center P of the mixing container 18 is not on the axis of the first rotating shaft 14 or the second rotating shaft 6. With this holding structure, it allows rapid and uniform mixing of the first rotating shaft 14 and the mixing vessel center in the mixing vessel was a unique free rotation on the axis when the second rotation axis 6 is rotated To.
[0012]
Moreover, the mixing container 18 is held by a holder 17 whose gripping gap can be adjusted by the electric motor 3. The holder 17 is formed in a U shape by a holder main body 17a fixed to the second rotating shaft 6 and an elevating holder 17b to hold the mixing container 18 . The holder main body 17a is sized such that the disc-shaped container presser 19 provided on the holder main body 17a closes the raw material charging port of the mixing container 18 , and the other lifting / lowering holder 17b moves according to the feed screw 16 provided on the holder main body 17a. That is, when the feed screw 16 connected to the electric motor 3 is rotated by the electric motor 3, the substantially L-shaped elevating holder 17b screwed with the feed screw 16 is moved so that the mixing container 18 can be gripped or released. To do. Of course, a lidded container can also be attached.
[0013]
The powder and particle mixer shown in FIG. 3 meshes with a bevel gear provided on a transmission shaft 24 provided on the holder body 17a so that the substantially L-shaped lifting holder 17b can be moved (lifted) by the electric motor 3. The bevel gear 22a is provided on the inner shaft 22 in the second rotating shaft 23 which is a double shaft outer shaft, and the other of the inner shaft 22 is meshed with the bevel gear of the electric motor 3 by the bevel gear 22b. The elevating holder 17b has a base screwed to the feed screw 16 and moves by the rotation of the feed screw 16 in the same manner as in the above embodiment. The feed screw 16 rotates with the transmission shaft 24 and the gears provided at the respective shaft end portions engaged with each other. The bevel gear of the second rotary shaft 23 of the double shaft outer shaft to which the holder main body 17a is fixed meshes with the bevel gear of the second rotary shaft electric motor 8.
[0014]
FIG. 4 shows another example of transmitting the rotation of the electric motor 26 for the second rotating shaft to the double shaft. A clutch type transmission device 25 is provided in the frame 2 and the double shaft is turned on and off by the clutch ON-OFF . All or one of the two rotation shafts 23 and the inner shaft 22 can be rotated.
[0015]
In the powder and particle mixer of the present invention described above, the one in which the raw material is put in the mixing container 18 is gripped together with the mixing container 18, and after rotating and mixing, the mixing container 18 is taken out, and then the other raw materials are A series of operations for replacing the mixed mixing vessel 18 can be automated by electrical control. An example of the process is shown in a flow sheet in FIG. To allow controlling the gripping gap adjustment motor 3 of the first rotational shaft electric motor 11 or the second rotational shaft electric motor 8 and the holder 17 in an electrical circuit, the grip of the mixing vessel 18, rotating mixing a series of mixing vessels extraction exchange The operation is automated.
[0016]
【The invention's effect】
Since the present invention has the above-described structure, it can be easily manufactured and made inexpensive. Furthermore, there is no restriction on the size and shape of the mixing container, and the container can be easily replaced. And is provided with the mixing vessel to a position also offset from the first rotary shaft and second rotary shaft one of the axial agitation efficiency is also good. In addition, it was possible to automate a series of operations such as holding the mixing container, rotating mixing, and taking out and replacing the mixing container.
[Brief description of the drawings]
FIG. 1 is a front view of a powder particle mixer of an embodiment of the present invention.
2 is a cross-sectional view taken along the line AA in FIG. 1 when the mixing container is rotated 90 degrees from the state shown in FIG.
FIG. 3 is a cross-sectional view corresponding to FIG. 2 of another embodiment.
FIG. 4 is a cross-sectional view of a main part in the case of a clutch type double shaft system.
FIG. 5 is a flowchart at the time of use of the embodiment of the powder and particle mixer of the present invention.
FIG. 6 is a front view of a conventional powder and particle mixer.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rotation support stand 2 Frame 3 Electric motor 4 Transmission device 5 Rotating connection rod 6 Second rotating shaft 7 Bearing 8 Motor for rotating shaft 9 Bearing
10 Main unit case
11 Motor for rotating shaft
12 Rotating connection
13 Transmission
14 First rotation axis
15 Balance weight
16 Lead screw
17 Holder
17a Holder body
17b Lifting holder
18 Mixing container
19 Container holder
20 Auxiliary shaft
21 Bearing
22 Inner shaft
23 Second rotation axis
24 Transmission shaft
25 Clutch transmission

Claims (1)

In the mixer that rotates the mixing container by the first rotating shaft and the second rotating shaft, the mixing container is provided at a position deviated from the axis of the first rotating shaft and the second rotating shaft orthogonal to the center of the mixing container, by rotating the first rotation axis and the second rotation axis, the mixing vessel center of the mixing vessel by the mixing vessel specific rotation nor the first rotation axis and the second rotation axis on one of the axis A powder and granule mixer characterized by enabling quick and uniform mixing.

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