JP2011036805A - Stirring/defoaming apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stirring/defoaming apparatus wherein the position of its weight can easily and quickly be adjusted. <P>SOLUTION: The stirring/defoaming apparatus including a container 4 for storing an object to be treated, a table 5 turnably holding the container 4 which is constructed to be rotatable thereon and to be revolvable by turning the table 5, a weight 8 disposed on the table 5 to balance weight relative to the weight of the container 4 wherein an object to be treated is stored, in accordance with the turning of the table 5, and a changing means 18 of changing the position of the weight 8 to balance weight relative to the weight of the container 4 according to the weight thereof, with the changing means 18 including a guiding member 19 for moving/guiding the weight 8 on the table 5 and a driving mechanism 20 for moving the weight 8, is characterized in that the driving mechanism 20 for moving the weight 8 includes a turnable handle 21 constructed in a turnable manner and a converting mechanism 22 for converting the operational force of turning the turnable handle 21 into the force of moving the weight 8. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an agitation / defoaming apparatus capable of agitating / degassing an object to be processed contained in a container.

  Conventionally, as this kind of agitation / defoaming apparatus, a container for storing an object to be processed, a table for rotatably supporting the container, and a container that can rotate on the table, and rotating the table. A container having a weight provided on the table has been already proposed in order to balance the weight of the container with the weight of the container in which the object to be processed is accommodated with the rotation of the table. . As described above, the weight balance with the container weight is achieved by the weight, so that the vibration generated by the rotation of the container can be suppressed to a small level.

  And the structure which can change the position of a weight is already proposed in order to adjust the weight balance with a container weight according to a container weight. This is because a rod-shaped screw member is provided along the rotational radial direction of the table, a screw hole is formed at the center of a disk-shaped weight so as to be screwed into the screw member, and the weight is rotated to rotate the screw member. The position of the weight is changed by moving the weight in the longitudinal direction (see, for example, Patent Document 1).

Japanese Patent Laying-Open No. 2003-290642 (see FIGS. 1 and 6)

  In the stirring and defoaming device according to such a proposal, when changing the position of the weight, not only the weight must be rotated while pressing a finger against the narrow outer peripheral surface of the disk-shaped weight, Since the amount of movement (adjustment width) of the weight in the longitudinal direction of the screw member with respect to the amount of rotation is small, when a large adjustment is desired, many weights must be rotated. As a result, the adjustment of the position of the weight is troublesome and requires a lot of labor and time.

  Therefore, the present invention has been made in view of such circumstances, and an object of the present invention is to provide an agitation / defoaming device capable of easily and quickly adjusting the position of a weight.

  That is, the agitation / defoaming apparatus of the present invention is provided with a container that accommodates an object to be processed, and a table that rotatably supports the container, and the container can be rotated on the table in order to solve the above-described problems. The container is configured to be revolved by rotating the table, and in order to balance the weight of the container in which the object to be processed is accommodated with the rotation of the table, the container is placed on the table. A stirring deaerator comprising a weight provided and a changing means for changing the position of the weight in order to adjust a weight balance between the weight of the container and the weight of the container, wherein the changing means comprises: A guide member for moving and guiding the weight on the table; and a weight drive mechanism for moving the weight, the weight drive mechanism being configured to be freely rotatable, The rotational operation force of the rotary handle It is characterized in that a conversion mechanism for converting the moving force.

  According to the above configuration, when the rotation handle is rotated, the rotation operation force of the rotation handle is converted into the moving force of the weight by the conversion mechanism. Then, the weight is moved and guided by the guide member, and the position of the weight can be quickly changed.

  Further, in the stirring / defoaming device according to the present invention, the conversion mechanism includes an elongated hole formed in the weight in a direction orthogonal to the moving direction of the weight, and an operation provided in the elongated handle provided in the rotating handle. The operation member may move the weight through a long hole by rotation of the rotary handle.

  In the stirring / defoaming device according to the present invention, the weight is fixed so that the weight is fixed at the position after being moved by the rotary handle and is released when the weight is moved by the rotary handle. In addition, lock means that can be fixed and released may be provided.

  If the lock means is provided as described above, the weight will not move unexpectedly while the table is being rotated, and a highly reliable stirring / defoaming apparatus can be obtained.

  In the agitation / defoaming device according to the present invention, the lock means is unlocked by lifting the rotary handle upward, and the rotary handle is automatically moved downward or released by releasing the rotary handle. The weight may be fixed by moving the handle downward.

  In the agitation / defoaming device according to the present invention, the lock means includes an annular movable gear provided on the rotary handle so as to be integrally rotatable, and external teeth that mesh with the inner teeth of the movable gear in the vertical direction. And a fixed-side gear attached to the fixed member.

  In addition, when the stirring / defoaming device of the present invention is provided with an elastic body for moving and energizing the rotary handle downward, the weight is naturally only released by moving the weight and then releasing the hand. Therefore, not only can the operability be improved, but also a highly reliable stirring and defoaming device can be provided.

  In the agitation / defoaming device according to the present invention, since the rotational operation force of the rotary handle is converted into the moving force of the weight, the moving amount of the weight is smaller than that in the conventional structure in which the screw is rotated. It is possible to provide a stirring and defoaming device that can be enlarged and can quickly adjust the position of the weight.

It is a perspective view which shows one Embodiment of the stirring and defoaming apparatus which concerns on this invention. It is the longitudinal cross-sectional view which abbreviate | omitted a part of the stirring and defoaming apparatus. The concrete structure of the change means which changes the position of a weight is shown, (a) is the perspective view seen from the top, (b) is the perspective view seen from the bottom, (c) is a top view. It is the top view which rotated the rotation handle which comprises a change means in steps, (a) shows the state rotated 15 degree | times, (b) shows the state rotated 33 degree | times, (c) is 45 (D) shows a state in which the rotation is performed by 66 degrees. (A) is a plan view of the main part in which the weight and the rotary handle are assembled, (b) is a cross-sectional view taken along line AA in FIG. 5 (a), and (c) is the main part in which the weight and the rotary handle are assembled. It is a perspective view of a part. (A) is the BB sectional drawing in Fig.5 (a), (b) is sectional drawing which shows the state which lifted the rotation handle upward from the state of (a).

Hereinafter, an embodiment of a stirring / defoaming apparatus according to the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a stirring / defoaming apparatus 1 according to this embodiment. The stirring / defoaming apparatus 1 is an apparatus capable of stirring / defoaming an object to be processed made of a plurality of materials. In addition, a to-be-processed object is a to-be-stirred material which dislikes bubbles, such as a medical material, an electronic component material, and a liquid crystal material, for example.

  An agitation / defoaming device 1 shown in FIG. 1 includes an upper open type casing 2 having an opening 2K formed at the upper end, and a main body 3 accommodated in the casing 2. As shown in FIG. 2, the main body 3 rotates a table 5 that rotatably supports a container 4 that accommodates an object to be processed, a rotation drive mechanism 6 that rotates the container 4 on the table 5, and a table 5. A revolution drive mechanism 7 for revolving the container 4 and a weight 8 provided on the table 5 in order to balance the weight of the container in which the object to be processed is accommodated as the table 5 rotates. It has. Accordingly, the object to be processed in the container 4 is stirred and defoamed by rotating the container 4 on the table 5 while rotating the table 5. And the cover member 9 (refer FIG. 1) by which two opening 9A, 9B for exposing the upper part of the container 4 and the below-mentioned rotation handle 21 which moves and operates the weight 8 was formed in the upper part of the main-body part 3 is referred. Provided. By exposing the rotary handle 21 upward from the cover member 9 in this way, the entire rotary handle 21 can be easily grasped with a finger from above and the rotation operation can be quickly performed.

  As shown in FIGS. 3A, 3 </ b> B, and 3 </ b> C, the weight 8 includes a lump that is substantially octagonal in plan view with four corners.

  The revolving rotation drive mechanism 7 is an electric motor, and connects the central portion 5A of the table 5 to the upper end of the support shaft 10 that is externally fitted to the drive rotation shaft 7A that protrudes upward from the electric motor 7 and rotates integrally therewith. ing. Therefore, the container 4 can be revolved by driving the electric motor 7 to rotate the table 5 around the vertical axis (vertical axis) X.

  The table 5 is rotated by being bent at a central portion 5A to which the support shaft 10 is connected, a horizontal portion 5B positioned outside the central portion 5A and lower than the central portion, and a predetermined range of the horizontal portion 5B. And an inclined portion 5C formed with an inclined surface 5c located on the upper side in the radial direction. Then, the container 4 is attached to the inclined portion 5C located outside a predetermined distance from the rotation center of the table 5 so as to be rotatable about the vertical axis Y, and the horizontal axis that is substantially symmetrical in the rotation radial direction across the container 4 and the vertical axis X. A weight 8 is provided at the position of the part 5B. The vertical axis Y, which is the rotation axis of the container 4, is inclined so that the upper end side thereof is positioned closer to the rotation center (vertical axis X) side of the table 5.

  The container 4 includes a container main body 4A that accommodates an object to be processed, and a rotating member 4B that is rotatably attached to the table 5 and in which the container main body 4A is detachably mounted. A groove 4M is formed.

  The rotation drive mechanism 6 is driven across the pulley 15 and the groove 4M of the rotating member 4B so as to transmit the rotational force of the pulley 15 and the pulley 15 rotating with the support shaft 10 by driving the electric motor 7. And a conductive belt 17 wound around. The pulley 15 has upper and lower grooves 15A and 15B, and a conductive belt 17 is wound around the upper groove 15A. The powder brake 11 is connected to the lower groove 15B via the conduction mechanism 12. By increasing or decreasing the voltage applied to the powder brake 11, the rotational speed of the pulley 15 can be changed by varying the rotational load applied to the pulley 15.

  The transmission mechanism 12 includes a load pulley 13 that is rotatably attached to an output shaft 11A that protrudes horizontally from the powder brake, a lower groove 15B of the pulley 15, the load pulley 13, and the pulley 15. And a transmission belt 16 that interlocks the two.

  The number of rotations of the table 5 by the rotation drive mechanism for revolution 7 and the number of rotations of the container 4 by the rotation drive mechanism for rotation 6 are set in accordance with the object to be processed from among a plurality of rotation speeds set and stored in advance. The number of rotations may be selected, or the arbitrary number of rotations may be selected to operate the stirring / defoaming apparatus 1.

  A changing means 18 is provided for changing the position of the weight 8 in the direction of the rotation radius in accordance with the container weight that changes depending on the amount of the container that contains the object to be processed, and by adjusting the weight balance with the container weight, the table 5 Vibration generated by rotation can be suppressed. The container weight referred to here is the total weight of the weight of the container 4 and the weight of the object to be processed.

  As shown in FIGS. 2 and 3, the changing means 18 includes a guide member 19 for linearly moving and guiding the weight 8 on the table 5 along the rotational radial direction, and a weight for moving the weight 8. Drive mechanism 20. The guide member 19 is formed of a plate-like member, and a weight 19 is fitted into the plate-like member 19 to form a groove 19M that can move the weight 8 only in the rotational radial direction.

  A circular rotary handle 21 in which the weight drive mechanism 20 is configured to be rotatable around the vertical axis Z, and a conversion mechanism 22 for converting the rotational operation force of the rotary handle 21 into the moving force of the weight 8. It has. A rotary shaft 29 that is a screw shaft passes through the three members of the rotary handle 21, the weight 8, and the plate-like member 19 in the vertical direction, and a nut 30 is screwed into the upper and lower protruding ends of the rotary shaft 29. Three members 21, 8, and 19 are integrated (unitized).

  The conversion mechanism 22 has a long hole 8A formed in the weight 8 in a direction perpendicular to the moving direction of the weight 8, and a rod shape that penetrates the rotary handle 21 and protrudes from the lower end, and the protruding end 21T enters the long hole 8A. (Cylindrical) operation member 21A. Therefore, by rotating the rotary handle 21, the operation member 21 </ b> A pushes the long hole 8 </ b> A so that the weight 8 is guided by the guide member 19 and can move in the rotational radial direction of the table 5.

  4 (a) to 4 (d) show a state in which the rotary handle 21 is rotated clockwise by a predetermined angle α from the rotational position of the rotary handle 21 shown in FIG. 3 (c). 4A shows a case where the predetermined angle α is 15 degrees and the weight 8 has moved a predetermined distance L (7.635 mm) from the rotation center of the rotary handle 21, and FIG. 4B shows that the predetermined angle α is 33. FIG. 4C shows a case where the weight 8 moves at a predetermined distance L (16 mm) from the rotation center of the rotary handle 21 at a degree, and FIG. 4C shows a predetermined angle α of 45 degrees and the weight 8 has a predetermined distance from the rotation center of the rotary handle 21. FIG. 4D shows a case where the predetermined angle α is 66 degrees which is the maximum angle and the weight 8 moves a predetermined distance L (27 mm) from the center of rotation of the rotary handle 21. FIG. ing. This maximum angle can be set and changed depending on the length of the long hole 8A. 4 shows a case where the weight 8 is moved to the side (outside) away from the rotation center of the table 5 (moved to the left side in FIG. 4), the rotation center of the table 5 is moved from the position of FIG. The rotary handle 21 may be rotated counterclockwise so as to move toward the inner side (inward) (to the right in FIG. 4). As described above, there is an advantage that the position of the weight 8 can be greatly slid only by rotating the rotary handle 21 within an angle that does not make one rotation, and further within an angle range of less than 180 degrees (here, a range of 66 degrees). is there.

  Reference numeral 8 </ b> B shown in FIG. 4 is a long hole formed in the weight 8 in the moving direction in order to escape the rotation shaft 29 of the rotary handle 21 when the weight 8 is moved. Further, in FIG. 4, by forming two long holes 8A orthogonal to the moving direction of the weight 8, the operation member 21A can be inserted into any of the long holes 8A or 8A, but only one long hole is provided. May be implemented. It should be noted that another operation member 21B is provided at a position that is point-symmetric with respect to the operation member 21A, and either one of the operation members 21A or 21B is inserted into the long hole 8A or 8A. You can also.

  In addition to the shape of the weight 8 and the rotating handle 21, the configuration of the rotating handle 21 is changed as shown in FIGS. 5 (a), (b), (c) and FIGS. 6 (a), (b). This will be described with reference to the drawings.

  Similarly to the above, it is provided with changing means 18 for changing the position of the weight 8 in the direction of the rotation diameter in accordance with the container weight that changes depending on the amount of the object to be processed. The vibration generated by the rotation of the table 5 can be suppressed. The container weight referred to here is the total weight of the weight of the container 4 and the weight of the object to be processed.

  As shown in FIG. 5 (b), the changing means 18 moves the weight 8 and a guide member 34 for linearly moving and guiding the weight 8 along a rotational radial direction on a table (not shown). A drive mechanism 35 for weight. The guide member 34 is an internal hollow box having a cover portion 34A that covers the upper surface of the weight 8 and a pair of front and rear L-shaped receiving portions 34B and 34B that cover the front and rear surfaces and the lower surface of the weight 8 in the width direction. It has a shape. The receiving portions 34B and 34B are attached to a plate member 36 fixed to a table (not shown). Each of the receiving portions 34B and 34B is formed with two through holes 34K and 34K for weight reduction. The table is a member for revolving the container 4 by revolving by the revolving rotation drive mechanism 7, regardless of the specific configuration such as the shape and the mounting position relationship with the container 4. Good.

  A circular rotary handle 21 in which the weight drive mechanism 20 is configured to be rotatable around the vertical axis Z, and a conversion mechanism 22 for converting the rotational operation force of the rotary handle 21 into the moving force of the weight 8. It has.

  The conversion mechanism 22 has a notch (long) formed in one of the two portions located on both sides of the weight 8 in a direction orthogonal to the moving direction of the weight 8 and sandwiching the elongated hole 8B. 8A (see FIG. 5 (a)), a columnar operation member 21A (see FIGS. 6 (a) and 6 (b)) provided in the rotary handle 21 and entering the notch 8A, and the guide It is comprised with the member 34. FIG. Therefore, by rotating the rotary handle 21, the operating member 21A pushes the long hole 8A, whereby the weight 8 is guided by the guide member 34 and can move in the radial direction.

  As described above, the weight 8 is formed in a rectangular shape in FIG. 5A, the long hole 8B is formed along the longitudinal direction at a substantially central position in the width direction of the weight 8, and the notch 8A is formed in the weight 8. Is formed in one of the two portions located on both sides of the long hole 8B in a direction perpendicular to the moving direction (may be formed in both portions).

  The operation member 21 </ b> A is attached to a lower end of a movable side gear 26, which will be described later, provided at the lower end of the rotary handle 21. Therefore, by rotating the rotary handle 21, the weight 8 can be moved in the left-right direction in FIG. FIG. 5A shows a state in which the weight 8 is moved to the left end.

  The rotary handle 21 includes a handle portion 23 made of a synthetic resin having a circular handle main body 23A in a plan view and a protrusion 23B protruding outward at a predetermined interval on the outer peripheral edge of the handle main body 23A. And an auxiliary weight portion 24 made of metal integrally connected to the lower end of the screw by a screw or the like. Therefore, the rotation handle 21 can be reliably rotated without sliding the finger by engaging the finger in the gap between the protrusions 23B and 23B adjacent in the circumferential direction. Further, by providing the auxiliary weight part 24, the weight balance with the container weight can be adjusted by the weight of the auxiliary weight part 24, so that the weight of the weight 8 can be kept small.

  The weight 8 is fixed at that position after being moved by the rotary handle 21, and lock means 25 that can be fixed and released to be released when the weight 8 is moved by the rotary handle 21. I have.

  As shown in FIGS. 6A and 6B, the lock means 25 is an annular (ring-shaped) movable provided with a screw or the like at the lower end of the auxiliary weight portion 24 of the rotary handle 21 so as to be integrally rotatable. A side gear 26 and a fixed side gear 27 having external teeth 27A meshing with the internal teeth 26A of the movable side gear 26 in the vertical direction and externally fitted to the support shaft 31 as a fixed member. Yes. The fixed-side gear 27 includes a plate-like annular gear portion 27a having external teeth 27A and a cylindrical portion 27b extending upward from the inner peripheral edge of the gear portion 27a. The cylindrical portion 27b is attached to the support shaft 31. It will be fitted externally.

  The auxiliary weight portion 24 includes a metal-made annular (ring-shaped) weight body 24A and a receiving portion 24B that receives a lower end of a coil spring 28 described later. The weight main body 24A includes an annular flange 24a extending upward at the inner end, and adjusts the weight of the weight main body 24A at each of four locations that are substantially in the radial direction and spaced apart in the circumferential direction. Therefore, a through hole 24H penetrating in the vertical direction is formed. Further, the receiving portion 24B is raised upward from an annular horizontal plate portion 24b extending from the inner lower end of the weight main body 24A to the support shaft 31 side as a rotation center, and an outer peripheral edge of the horizontal plate portion 24b. It consists of a cylindrical plate portion 24c. The coil spring 28 is accommodated in a space 24K formed by the weight main body 24A and the receiving portion 24B. Above the coil spring 28, there is provided a receiving plate 33 that is externally fitted to the upper end of the support shaft 31 and is prevented from moving upward by a nut 32. The receiving plate 33 and the receiving portion 24B are provided. By providing the coil spring 28 in a shortened state with the horizontal plate portion 24b, the rotary handle 21 is urged to move downward via the auxiliary weight portion 24.

  Accordingly, from the state shown in FIG. 6 (a), the rotary handle 21 is lifted upward against the biasing force of the coil spring 28 (upward position shown in FIG. 6 (b)), so that the movable gear 26 is fixed. The lock is released by separating from the gear 27 and releasing the meshing of both. In this unlocked state, the position of the weight 8 can be moved in the radial direction by rotating the rotary handle 21 as described above. After the movement of the weight 8, the hand is released from the rotation handle 21, the rotation handle 21 is moved downward by the biasing force of the coil spring 28, and the movable side gear 26 is engaged with the fixed side gear 27. Is fixed.

  The weight 8 is made of a low specific gravity material, similar to the weight 8 in FIGS.

  In addition, this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary of this invention.

  For example, the locking means 25 shown in the above embodiment has an annular movable gear 26 provided integrally with the rotary handle 21 and an outer tooth 27A that meshes with the inner teeth 26A of the movable gear 26 in the vertical direction. The fixed side gear 27 is externally fitted to the support shaft 31. However, a plurality of locked portions are provided on the fixed side, and the locked portions can be locked and released freely. It can also be carried out by providing the locking part on the rotary handle 21. In addition to fixing and releasing the lock means 25 by moving the rotary handle 21 up and down, the rotary handle 21 is left as it is, and an operation member is provided for operating the lock means 25 for fixing and releasing the lock. You can also.

  In the embodiment, the coil spring 28 is provided as an elastic body for moving and urging the rotary handle 21 downward. However, a plate spring, rubber, or the like may be used. Alternatively, the elastic member for moving and urging the rotary handle 21 downward may be omitted, and the lock means 25 may be fixed and released by manually moving the rotary handle 21 up and down.

  Moreover, in the said embodiment, it was set as the structure which also rotates the container 4 by the electric motor 7 which carries out drive rotation of the table 5, and it was comprised so that the rotation speed of the rotation could be varied using a powder brake, but drive the table 5 An electric motor that rotates and an electric motor that rotates the container may be provided separately. The driving means for driving the table 5 and the driving means for rotating the container 4 may be actuators other than the electric motor.

DESCRIPTION OF SYMBOLS 1 ... Agitation / deaeration apparatus, 2 ... Casing, 2K ... Opening, 3 ... Main part, 4 ... Container, 4A ... Container main body, 4B ... Rotating member, 4M ... Groove, 5 ... Table, 5A ... Central part, 5B ... Horizontal part, 5C ... Inclined part, 5c ... Inclined surface, 6 ... Drive mechanism for rotation, 7 ... Rotation drive mechanism for revolution (electric motor), 7A ... Drive rotating shaft, 8 ... Weight, 8A ... Long hole (notch) , 8B ... long hole, 9 ... cover member, 9A, 9B ... opening, 10 ... support shaft, 11 ... powder brake, 11A ... drive shaft, 12 ... transmission mechanism, 13 ... driving pulley, 13H ... auxiliary pulley, 14 ... Bearing, 15 ... Relay pulley, 15A, 15B ... Groove, 15H ... Auxiliary pulley, 16, 17 ... Transmission belt, 18 ... Changing means, 19 ... Guide member (plate member), 19M ... Groove, 20 ... Drive for weight Mechanism, 21 ... rotating handle, 21A ... operating member, 21B ... Working member, 21T ... projecting end, 21b ... projection, 22 ... conversion mechanism, 23 ... handle, 23A ... handle body, 23B ... projection, 24 ... auxiliary weight, 24A ... weight body, 24B ... receiving part, 24K ... space, 24a ... collar portion, 24b ... horizontal plate portion, 24c ... cylindrical plate portion, 24H ... through hole, 25 ... lock means, 26 ... movable side gear, 26A ... internal teeth, 27 ... fixed side gear, 27A ... external teeth, 28 ... coil spring, 29 ... rotating shaft, 30 ... nut, 31 ... support shaft, 32 ... nut, 33 ... backing plate, L ... predetermined distance, X, Y, Z ... vertical axis, α ... predetermined angle

Claims (6)

A container for storing an object to be processed;
A table that rotatably supports the container;
The container is configured to be capable of rotating on the table, and configured to revolve by rotating the table,
A weight provided on the table in order to balance the weight of the container in which the object to be processed is stored with the rotation of the table;
A stirring and defoaming device comprising a changing means for changing the position of the weight in order to adjust the weight balance with the container weight according to the container weight,
The changing means includes a guide member for moving and guiding the weight on a table, and a weight drive mechanism for moving the weight.
The drive mechanism for the weight includes a rotating handle configured to be freely rotatable, and a stirring / removal mechanism that converts a rotating operation force of the rotating handle into a moving force of the weight. Foam equipment.   The conversion mechanism includes a long hole formed in the weight in a direction perpendicular to the moving direction of the weight, and an operation member provided in the rotary handle and entering the long hole, and the rotation handle rotates the rotation The stirring / defoaming apparatus according to claim 1, wherein the operating member moves the weight through a long hole.   The weight is fixed at that position after being moved by the rotary handle, and includes a lock means that can be fixed and released so that the lock can be released when the weight is moved by the rotary handle. The stirring and defoaming apparatus according to claim 1 or 2, characterized in that.   The lock means is unlocked by lifting the rotary handle upward, and the rotary handle naturally moves downward by releasing the rotary handle, or the weight is fixed by moving the rotary handle downward. The stirring / defoaming apparatus according to claim 3, wherein   The lock means has an annular movable side gear provided integrally with the rotary handle so as to be freely rotatable, and external teeth meshing with the internal teeth of the movable side gear in the vertical direction, and is fixed to a fixed member. The stirring and defoaming device according to claim 3 or 4, further comprising a side gear.   The stirring / defoaming device according to any one of claims 3 to 5, further comprising an elastic body for moving and urging the rotary handle downward.

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