JP2007245000A - Stirring device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simple and inexpensive stirring device enabling a planetary motion which rotates on its axis together with a revolution. <P>SOLUTION: A rotation holder 5 carries out the revolution centering a revolution shaft 4 by rotating the rotation holder 5 through the revolution shaft 4, and is inclined to the outside by a centrifugal force. At the same time, a flange portion 8a of a container holder 8 attached to the container holding member 6 contacts a capping part 10, by which a container holder 8 rotates on its axis. The container holder 8 carries out the planetary motion of rotating on its axis together with the revolution, by which the centrifugal force by the revolution and the centrifugal force by an autorotation act on a material inside a kneading container 9 to accelerate the kneading by the stirring of the material. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a stirrer in which industrial materials such as liquids, powders, and gels and culture solutions are accommodated in a container and mechanically stirred.

  As a conventional agitation device, as disclosed in Patent Document 1, a plurality of electric motors for revolution and rotation are used, and the container performs a planetary motion that rotates along with the revolution.

  Further, in Patent Documents 2 and 3, rotation is performed using a revolving force using one electric motor.

Japanese Patent Laid-Open No. 10-43567 JP-A-8-332367 JP 61-290946 A

  However, in Patent Document 1, since an electric motor for rotation is required for each container in addition to the electric motor for revolution, the apparatus becomes large and it is difficult to supply power to the electric motor for rotation.

  In Patent Documents 2 and 3, revolution and rotation are performed using one electric motor. However, a mechanism for transmitting a rotational force from the revolution shaft to the rotation shaft is complicated, and there is a problem in durability.

  An object of the present invention is to provide a simple and inexpensive stirring device that solves the above-described problems and that performs planetary motion that rotates with revolution and enables stirring of the material in the kneading vessel.

  In order to achieve the above object, the technical features of the stirring device according to the present invention include a rotary cage that is driven to rotate about a revolution axis in the vertical axis direction by a drive motor, and a horizontal axis with respect to the rotary cage. A container holder that is rotatably attached, a cylindrical kneading container that can be attached to the container holder so as to be rotatable in the axial direction directly or via a container holder, and disposed above the container holder A part of the kneading container or container holder that revolves by rotating the rotary holding tool with an electric drive motor is brought into contact with the plate body, and rotational movement by rotation is applied to the kneading container. There is.

  According to the stirrer according to the present invention, it is possible to perform a planetary motion that rotates together with revolution by a single drive motor, and it is possible to effectively stir with a simple structure.

The present invention will be described in detail based on the embodiments shown in the drawings.
FIG. 1 shows a side view of the stirring apparatus of the embodiment. A lifting device 2 that can be moved up and down is installed in the lower part of the housing 1, and a drive motor 3 is placed on the lifting device 2. Further, as shown in FIG. 2, a rotary cage 5 having a U-shaped cross section is attached to an upper portion of the revolving shaft 4 that is connected to the drive shaft 3a of the drive motor 3 and faces the vertical direction. Holes 5a are provided on both sides of the rotary cage 5, and two annular container holders 6 are rotatably attached to the holes 5a via a pair of pins 6a.

  FIG. 3 is an exploded perspective view of the container holder 6 and a kneading container attached to the container holder 6, and a cylindrical container holder 8 is rotatably attached to the container holder 6 via a bearing 7. The container holder 6 is provided with a flange 6b for holding the bearing 7. At the periphery of the opening at the upper end of the container holder 8, a flange portion 8 a for locking on the bearing 7 is provided. An elastic member such as a non-slip rubber material may be provided around the flange portion 8a. A kneading container 9 having a cap 9 a that can be freely opened and closed is mounted in the container holder 8. The kneading container 9 is a bottomed cylindrical body, and a cap 9a is attached to the upper part by, for example, screwing. Since the center of gravity of the container holder 8 is sufficiently below the pin 6a, the container holder 8 is suspended by the pin 6a when stationary as shown in FIG.

  In addition, a lid 10 is provided at the top of the housing 1 so as to be freely opened and closed, and a plate material having wear resistance is attached to the back of the lid 10.

  When using this stirring device, the materials to be stirred are put in the two kneading containers 9, sealed by the cap 9 a, and fixed in the container holder 8. Thereafter, the height of the rotary cage 5 is positioned by the lifting device 2 as necessary, and then the lid 10 is closed and fixed to the housing 1.

  Here, when the rotary motor 3 is driven, the rotary cage 5 rotates via the revolution shaft 4. As a result, the container holder 8 revolves around the revolving shaft 4 and, as shown in FIG. 4, the container holder 8 is lifted together with the kneading container 9 about the pin 6 a by the centrifugal force applied to the container holder 8. The corner portion of the flange portion 8 a of the container holder 8 contacts the back side of the lid portion 10. As a result, the container holder 8 starts rotating due to the frictional resistance with respect to the lid 10 and rotates with respect to the container holder 6. In addition, it is suitable that the corner | angular part which contacts the back side of the cover part 10 of the flange part 8a is rounded and chamfered beforehand so that sufficient slip resistance may be obtained.

  When the container holder 8 performs a planetary motion that rotates with the revolution, the centrifugal force due to the revolution and the centrifugal force due to the rotation act on the material inside the kneading container 9, and the material is kneaded by stirring the material. The release of bubbles contained in the inside of the kneading container 9 is promoted.

  When the height of the rotary cage 5 is adjusted by the lifting device 2, the contact position between the container holder 8 and the lid 10 changes as shown in FIG. The rotation speed of the container holder 8 changes even if the rotation speed is the same.

  In the present embodiment, the distance between the container holder 8 and the lid 10 is adjusted via the lifting device 2, but the height position of the lid 10 can be adjusted without using the lifting device 2. Further, when the lifting device 2 is continuously raised and lowered during the revolution of the rotary cage 5, the inclination angle of the container holder 8 and the kneading container 9 changes, the contact position with the lid 10 changes, and the rotation speed is increased. Can be varied.

  In addition, a heating device for heating the material in the kneading vessel 9 or a cooling device for cooling can be attached to the container holder 8, or a heating device and a cooling device can be provided in the housing 1. Further, by adjusting the internal pressure by attaching a valve to the kneading container 9, it is possible to reduce the inside to promote foaming of the material, or to stir the kneading container 9 in a pressurized state.

  When the agitator is stopped, if the power to the drive motor 3 is turned off, the centrifugal force applied to the container holder 8 disappears as the revolution speed decreases, and the inclination of the container holder 8 returns, and the container holder 8 is shown in FIG. Thus, it returns to the state suspended by the pin 6a. Therefore, the kneading container 9 may be taken out from the container holder 8 by opening the lid 10.

  In the embodiment, the kneading container 9 is attached to the container holder 6 via the container holder 8, but the kneading container 9 is directly attached to the container holder 6 so as to be rotatable without using the container holder 8. Also good. In this case, it is preferable to provide a flange portion having the same function as the flange portion 8 a of the container holder 8 on the upper portion of the kneading vessel 9.

  Further, the lid 10 is brought into contact with the kneading container 9 using the housing 1, but the housing 1 is not necessarily used, and a separate plate may be used instead of the lid 10.

  Furthermore, although two kneading containers 9 have been described in the embodiment, the number of kneading containers 9 is not limited to two.

It is a side view of the stirring apparatus of the state which opened the cover part. It is a perspective view of a rotation holder. It is a disassembled perspective view of a container holder, a container holder, etc. It is a side view of the stirring apparatus in rotation. It is explanatory drawing of the stirring apparatus of the state which changed the height of the container holder.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Case 2 Elevating device 3 Drive motor 4 Revolving shaft 5 Rotating cage 5a Hole 6 Container holder 6a Pin 7 Bearing 8 Container holder 8a Flange part 9 Kneading container 9a Cap 10 Lid part

Claims (7)

  A rotary holder that is driven to rotate about a revolving axis in the vertical axis direction by a drive motor, a container holder that is attached to the rotary holder so as to be rotatable about a horizontal axis, and directly or relative to the container holder A cylindrical kneading container that can be rotatably mounted in the axial direction via a container holder and a plate disposed above the container holder, and by rotating the rotary holder by an electric drive motor A stirring device, wherein a part of the kneading container or container holder that revolves is brought into contact with the plate, and a rotational movement by rotation is applied to the kneading container.   By changing the relative height position of the plate body with respect to the kneading container or the container holder, the inclination angle of the kneading container with respect to the rotating holder is changed, and the plate body of the kneading container or the container holder The stirring position according to claim 1, wherein the contact position of the kneading container is changed to change the rotation speed of the kneading container by rotation.   The stirring device according to claim 1, wherein the drive motor, the rotary cage, and the kneading container are accommodated in a casing, and the plate body is a lid portion of the casing.   The stirring device according to claim 2, wherein a relative height position of the kneading container or the container holder with respect to the plate body is adjusted by an elevating device.   The stirring device according to claim 4, wherein the lifting device can be moved up and down during rotation of the drive motor.   The stirring device according to claim 1, further comprising a heating unit for heating the kneading vessel or a cooling unit for cooling.   The stirring apparatus according to claim 1, wherein the kneading container has a valve and can be in a reduced pressure state or a pressurized state.

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