JP4398451B2 - Stirrer - Google Patents

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 kneading vessel and mechanically stirred.

  As a conventional agitation device, as in Patent Document 1, a kneading container that performs a planetary motion that rotates together with revolution is known using a plurality of electric motors for revolution and rotation.

  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 a rotating motor is required for each container in addition to the revolution motor, the apparatus becomes large and it is difficult to supply power to the rotating motor.

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

  An object of the present invention is to solve the above-mentioned problems, and to provide a small and inexpensive stirring device that can perform planetary motion that rotates with revolution and can independently change the revolution speed and rotation speed.

In order to achieve the above object, the technical feature of the stirring device according to the present invention is that a rotating cage driven to rotate about a vertical axis by a revolving motor, and a horizontal axis with respect to the rotating cage. A container holder that is tiltably attached to the container, a cylindrical kneading container that is rotatably attached to the container holder directly or via an attachment adapter, and a vertical movement drive unit that is arranged to be movable in the vertical direction above the container holder And a rotating plate fixed to a rotating shaft directed downward of the motor for rotation attached to the vertical movement drive unit, and by bringing the rotating plate into contact with a part of the mounting adapter or the kneading container during revolution In addition, the kneading container is subjected to a rotational motion by rotation in addition to a rotational motion by revolution.

  According to the stirrer according to the present invention, the revolution of the container is performed by the motor for revolution, the rotation is provided above the kneading container, and is controlled by controlling the rotating plate that gives rotation to the kneading container, and the rotation plate is stopped. By controlling forward rotation and reverse rotation, the rotation speed and direction of rotation can be varied, and the magnitude of centrifugal force can be controlled. Moreover, the inclination angle of the kneading vessel during stirring can be adjusted by adjusting the relative height of the rotating plate with respect to the kneading vessel. Further, by moving the rotating plate up and down during stirring, the inclination angle of the kneading vessel can be varied, and the flow during stirring can be performed over a wider range and efficiently in a short time.

  The present invention will be described in detail based on the embodiments shown in the drawings.

  FIG. 1 is a perspective view of the stirring device of the present embodiment, and FIG. 2 is a side view. On the bottom plate 1 of the stirrer, a revolving motor 2 is disposed and a column 3 is erected. A rotating cage 4 as shown in FIG. 3 is rotatably mounted on the revolving motor 2 via a rotating shaft 2a. A hole 4 a is provided on a side surface of the rotary cage 4, and two annular container holders 6 are rotatably attached by pins 5, and the kneading container 8 is attached to the container holder 6 via an attachment adapter 7. Is attached.

  FIG. 4 shows an exploded perspective view of the container holder 6, the mounting adapter 7 attached to the container holder 6, and the kneading container 8. The mounting adapter 7 is rotatably attached to the container holder 6 via a bearing 9. The container holder 6 has a flange 6 a for holding the bearing 9 and a pin hole 6 b for inserting the pin 5 into the container holder 6. Is worn.

  Further, a flange portion 7a for engaging with the bearing 9 is formed on the periphery of the opening at the upper end of the mounting adapter 7, and an elastic member such as a non-slip rubber material is provided at a corner around the flange portion 7a. It is attached. A kneading container 8 having a cap 8a that can be freely opened and closed is mounted in the mounting adapter 7.

  The kneading container 8 is a bottomed cylindrical body, and a cap 8a is attached to the upper part by, for example, screwing. Since the center of gravity of the mounting adapter 7 to which the kneading container 8 is added is sufficiently below the pin hole 6b, the mounting adapter 7 rotates via the container holder 6 and the pin 5 as shown in FIG. It is suspended from the cage 4.

  Further, a vertical movement drive unit 10 that is driven up and down along the support column 3 is attached to the column 3, and a motor 11 for rotation is provided in the vertical movement drive unit 10, and a rotating plate 12 is provided at the lower end of the rotation shaft 11 a. Is attached. A plate member 13 having wear resistance is attached to the bottom surface of the rotating plate 12.

  When using this stirring device, the materials to be stirred are put in the two kneading containers 8 and sealed with the cap 8a, and then the kneading container 8 is placed in the mounting adapter 7 as shown in FIGS. Fix each one.

  FIG. 5 shows a side view of a state in which two kneading containers 8 are set on the mounting adapter 7 and the vertical movement drive unit 10 and the rotating plate 12 are lowered. In addition, by adjusting the distance between the kneading container 8 and the rotating plate 12, the kneading container 8 is inclined by the centrifugal force when the kneading container 8 is revolved, and the inclination is determined by contacting the rotating plate 12. The angle can be adjusted.

  FIG. 6 shows a side view at the time of stirring. When the revolving motor 2 is driven, the rotating cage 4 rotates around the rotating shaft 2a, and centrifugal force is applied to the container holder 6 attached to the rotating cage 4. It acts, and it inclines gradually centering on the pin 5 so that the lower part of the attachment adapter 7 and the kneading container 8 may be lifted. When the kneading container 8 is tilted to a certain tilt angle, the elastic member at the corner of the mounting adapter 7 comes into contact with the rotating plate 12.

  Since the rotating plate 12 is rotated by the motor 11 for rotation, the kneading container 8 rotates with respect to the container holder 6 through the bearing 9 together with the mounting adapter 7 when the mounting adapter 7 contacts the rotating plate 12. To do. In this case, the revolution speed can be adjusted by controlling the revolution motor 2, and the rotation speed can be adjusted by adjusting the rotation speed of the rotation motor 11 or the lowering position of the rotating plate 12. Adjustment is possible because the radius of contact with the rotating plate 12 changes.

  The kneading container 8 starts rotating and rotates by frictional resistance of the mounting adapter 7 with respect to the plate 13 of the rotating plate 12. In addition, it is desirable that the corner where the mounting adapter 7 is in contact with the plate member 13 is chamfered in advance so that sufficient slip resistance can be obtained even if the inclination angle of the mounting adapter 7 changes.

  Thus, by simultaneously driving the revolution motor 2 and the rotation motor 11, the kneading vessel 8 can perform a so-called planetary motion in which the rotation motion and the revolution motion are performed simultaneously. When the kneading container 8 performs a planetary motion, the centrifugal force due to revolution and the centrifugal force due to rotation act on the material inside the kneading container 8, so that the material is kneaded by stirring the material, and the bubbles present in the material Is released into the space of the kneading container 8.

  In addition, a heating device for heating the material in the kneading vessel 8 or a cooling device for cooling can be attached to the mounting adapter 7. Further, by adjusting the internal pressure by attaching a valve to the kneading container 8, it is possible to reduce the inside to promote foaming of the material, or to stir the kneading container 8 in a pressurized state.

  When stopping the agitator, the power applied to the revolution motor 2 and the rotation motor 11 is turned off, and the rotation motor 11 is lifted upward by the vertical movement drive unit 10 so that the centrifugal force applied to the mounting adapter 7 and the kneading container 8 is increased. There is no power and these slopes return. Then, as shown in FIG. 1, the mounting adapter 7 and the kneading container 8 return to the state suspended by the pins 5, and the kneading container 8 is taken out from the mounting adapter 7 in this state.

  In this embodiment, the kneading container 8 is attached to the bearing 9 via the mounting adapter 7, but the kneading container 8 may be directly attached to the bearing 9 so as to be rotatable without using the mounting adapter 7. In this case, it is preferable to provide the kneading container 8 with a flange portion having the same function as the flange portion 7a of the mounting adapter 7.

  Furthermore, in the present embodiment, two kneading containers 8 have been described, but the number of kneading containers 8 is not limited to two.

  Thus, the stirring device in the present embodiment can independently set the revolution speed, rotation speed, and tilt angle parameters of the kneading vessel 8, and can improve the degree of freedom of stirring.

  FIG. 7 is an explanatory diagram of the second embodiment. In Example 1, stirring was performed without driving the vertical movement drive unit 10 during stirring. However, in Example 2, revolution and rotation were performed simultaneously as in Example 1, and further during stirring. The inclination angle of the mounting adapter 7 and the kneading container 8 can be swung by moving the rotary plate 12 up and down by the vertical movement drive unit 10.

  Thus, by adding the rocking motion of the kneading vessel 8, the stirring performance of the material can be further improved.

FIG. 8 is an explanatory diagram of the third embodiment. The purpose of this third embodiment is not to stir the material in the kneading container 8 as in the first and second embodiments, but to degas the bubbles contained in the material in the kneading container 8. . After driving the vertical movement drive unit 10 and lifting the rotating plate 12 sufficiently upward, the revolving motor 2 is rotated at a high speed, whereby a strong centrifugal force acts on the mounting adapter 7 and the kneading container 8, and the substantially horizontal It becomes a state. As a result, the material in the kneading container 8 moves to the bottom of the kneading container 8 by centrifugal force, so that bubbles in the material are easily degassed.

It is a perspective view of the stirring apparatus of Example 1. It is a side view of a stirring apparatus. It is a perspective view of a rotation holder. It is a disassembled perspective view of a container holder etc. It is a side view of the stirring apparatus before stirring. It is a side view of the stirring apparatus during stirring. It is a side view of the stirring apparatus in the state where the kneading container is swung by the up-and-down drive unit during the stirring of the second embodiment. FIG. 6 is a side view of a deaeration mode stirring device according to a third embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bottom plate 2 Revolving motor 3 Support | pillar 4 Rotating cage 5 Pin 6 Container holder 7 Mounting adapter 8 Kneading container 8a Cap 9 Bearing 10 Vertical motion drive part 11 Motor for rotation 12 Rotating plate 13 Plate material

Claims (6)

A rotating cage that is driven to rotate about a revolution axis in the vertical axis direction by an electric motor for revolution, a container holder that is attached to the rotating holder so as to be tiltable about a horizontal axis, and an attachment adapter that is directly or directly attached to the container holder. A cylindrical kneading container that is rotatably attached to the container, a vertical movement drive unit that is arranged so as to be movable in the vertical direction above the container holder, and a downward rotation of the motor for rotation that is attached to the vertical movement drive unit A rotating plate fixed to a shaft, and the rotating plate is brought into contact with the mounting adapter or a part of the kneading container during revolution to add a rotational movement due to rotation to the rotational movement due to revolution to the kneading container. A stirrer.   The stirring device according to claim 1, wherein the mounting adapter or the kneading container is rotatably attached to the container holder via a bearing. Wherein the rotary plate is brought into contact with the mounting adapter or kneading vessel, by changing the relative height position relative to the kneading container by the vertical movement driving portion of the rotary plate, changes the inclination angle with respect to the revolution axis of said kneading vessel stirring device according to claim 2, characterized in that cause.   2. The stirring device according to claim 1, wherein the up-and-down motion drive unit can be moved up and down during rotation of the revolution motor and the rotation motor.   The stirring device according to claim 1, wherein a plurality of the kneading containers can be individually attached.   The stirring device according to claim 1, further comprising a heating unit for heating the kneading vessel or a cooling unit for cooling.

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