JP5711425B2 - Stirring / defoaming apparatus and method for operating the same - Google Patents

Description

  The present invention relates to a stirring / defoaming apparatus and a method for operating the same, and more specifically, includes a means for rotating and revolving a container, and the material contained in the container is stirred and removed by rotating the container. The present invention relates to a stirring / defoaming apparatus that performs at least one of bubbles and an operation method thereof.

  2. Description of the Related Art Conventionally, an agitation / deaeration apparatus that is equipped with a means for rotating a container and a means for revolving, and that stirs or degass a single material or a mixed material contained in the container has been put into practical use. Examples of such materials include single or mixed liquid (including fluid) materials or liquid and powder materials in the fields of pharmaceuticals, chemical materials, foodstuffs, paints, semiconductor device materials, etc. Examples thereof include mixed materials (hereinafter simply referred to as “materials”).

  Here, as an example of a conventional stirring and defoaming apparatus, a stirring and defoaming apparatus 100 described in Patent Document 1 has been proposed (see FIG. 10). The agitation / defoaming device 100 includes a motor 101, a rotary arm 103 fixed to the output shaft 102 of the motor 101 and rotating horizontally around the output shaft 102, and the rotary arm. A shaft which is connected to the motor 103, revolves around the output shaft 102 by the rotation of the rotary arm 103, and is rotatable about an axis N inclined to the output shaft 102 side of the motor 101. The mixing tank 104 includes a supported mixing tank 104, and a mixing tank rotating means for rotating the mixing tank 104. The mixing tank rotating means is attached to the mixing tank 104 over the entire outer peripheral surface 104A of the mixing tank 104. The rubber elastic body 105 and the outer circumference of the revolution orbit drawn by the outer generatrix M of the mixing tank 104 are positioned over the entire circumference of the revolution orbit, and when the mixing tank 104 revolves, Slip And place the rubber elastic body 106 to Ku contact, characterized in that it consists of. According to this, a mixing tank rotating means for forcibly rotating the mixing tank 104 can be provided.

JP-A-8-332367

In general, when a material containing a material is rotated and revolved to stir and degas the material, it is known that the material generates heat due to frictional force, shearing force, etc. acting on the material.
Here, as a result of intensive research conducted by the inventors of the present application, when stirring and defoaming a material in a stirring and defoaming apparatus as exemplified in Patent Document 1, particularly when the viscosity of the material is high, a calorific value is generated. It has been found that there may be a problem that the temperature of the material increases, the viscosity decreases, and the stirring action decreases. Further, when the temperature of the material is excessively increased due to heat generation, there may be a problem that the material is deteriorated.

  The present invention has been made in view of the above circumstances, and can suppress an increase in the temperature of the material at the time of stirring and defoaming, thereby making it possible to perform reliable stirring and defoaming, and to prevent deterioration of the material. An object of the present invention is to provide an agitation / defoaming apparatus capable of performing

  The present invention solves the above-described problems by the solving means described below.

This agitation / defoaming apparatus includes a means for rotating and revolving a container, and the agitation / defoaming apparatus for rotating at least one of the material accommodated in the container by rotating the container A plurality of container holders each holding the container, and each container holder rotatably supported and revolving around a rotation axis to revolve each container holder around the rotation axis. A member, a driving means for rotationally driving the revolving member, a cold air generator for generating cold air, a nozzle for blowing the cold air and blowing it to the outer peripheral portion of the container, and an inner peripheral portion An annular outer ring disposed around the container holder so as to be in contact with the outer periphery of all the container holders, and the container holder and the outer ring An abutting portion provided annularly on the peripheral portion and an abutting surface provided on the inner peripheral portion of the outer ring are disposed so as to abut, and the container holder is rotated by the revolution of the revolving member. It is required to revolve around a rotating shaft and rotate by a frictional force received from the outer ring, and is formed to be hermetically sealed, and at least the container, the container holder, the revolving member, and the outer ring are disposed. A dry air generator that generates dry air adjusted to a predetermined humidity, and an introduction pipe that communicates with the dry air generator and introduces the dry air into the case. Alternatively, it is necessary to further include an outer ring heating means for heating the outer ring to a predetermined temperature .

  According to the present invention, it is possible to suppress an increase in the temperature of the material during stirring and defoaming. In addition, reliable stirring and defoaming can be performed, and alteration of the material can be prevented.

It is the schematic which shows the example of the stirring and defoaming apparatus which concerns on 1st embodiment of this invention. FIG. 2 is an enlarged perspective view of a part of the stirring / defoaming apparatus of FIG. 1. It is the schematic which shows the example of the container holder of the stirring and defoaming apparatus of FIG. It is the schematic which shows the example of the container of the stirring and defoaming apparatus of FIG. 5A and 5B are explanatory diagrams for explaining the positional relationship between the hole of the container holder and the nozzle of the stirring and defoaming apparatus of FIG. It is explanatory drawing for demonstrating the relationship between the hole of the container holder of the stirring and defoaming apparatus of FIG. 1, and the cold air sprayed from a nozzle. It is the schematic which shows the example of the stirring and defoaming apparatus which concerns on 2nd embodiment of this invention. It is the schematic which shows the example of the stirring and defoaming apparatus which concerns on 3rd embodiment of this invention. It is the schematic which shows the example of the stirring and defoaming apparatus which concerns on 4th embodiment of this invention. It is the schematic which shows the example of the stirring and defoaming apparatus which concerns on the conventional embodiment.

(First embodiment)
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front cross-sectional view (schematic diagram) showing an example of an agitation / defoaming device 1 according to the first embodiment of the present invention, and FIG. 2 is an enlarged perspective view (schematic diagram) of a part thereof. It is. In all the drawings for explaining the embodiments, members having the same function are denoted by the same reference numerals, and repeated description thereof may be omitted. For the sake of simplification, some bolts and nuts are not shown.

  This agitation / defoaming device 1 includes means for rotating and revolving a container, and at least for stirring and defoaming a single material / mixed material accommodated in the container by rotating and revolving the container. It is an apparatus for performing one (hereinafter simply referred to as “stirring / defoaming”).

As shown in FIGS. 1 and 2, the stirring / defoaming apparatus 1 according to the present embodiment includes a plurality of containers 2 that can store various materials to be stirred and defoamed, and a plurality of container holders that hold the containers 2 respectively. 11 and each container holder 11 so as to be capable of rotating, and a revolving member 12 provided to be rotatable about a rotation shaft 12a and revolving each container holder 11 around the rotation shaft 12a, and an inner peripheral portion An annular outer ring 13 that surrounds all the container holders 11 and is arranged in parallel with the revolution surface of the revolution member 12 so that the abutment surface 13a abuts against the abutment portions 11a of the outer peripheral parts of all the container holders 11; A driving unit (motor in this embodiment) 3 that rotationally drives the revolving member 12 and a control unit (not shown) that controls them are provided.
In this embodiment, the container holder 11, the container 2 held by the container holder 11, the revolving member 12, and the outer ring 13 are disposed inside the case 20. In addition, as a structural material, a general structural material (metal material, resin material) is used and is not particularly limited (the same applies to other configurations), but duralumin or the like is preferably used for the strength member.
Further, in the present embodiment, the four container holders 11 are provided at equal intervals in the circumferential direction (that is, in a cross shape with the rotating shaft 12a as the center), and the four containers 2 can be held. It is not limited.

  Here, as shown in FIG. 3, the container holder 11 is formed in a bottomed cylindrical shape capable of holding the container 2 therein, and has an abutting portion 11 a provided annularly on the outer peripheral portion. Yes. The abutting portion 11a is provided at the distal end portion in the radial direction of the flange-shaped member 11A provided so as to extend from the outer peripheral portion of the container holder 11 in the radial direction.

The contact portion 11a according to the present embodiment has a concave groove 14 that is provided in an annular shape along the circumferential direction at the distal end portion in the radial direction of the flange-shaped member 11A and has a concave radial cross-sectional shape. Further, a resin elastic ring 31 is fitted into the concave groove 14 as an elastic body for contact.
For example, an O-ring made of a rubber material (for example, silicon rubber having a hardness of 50 is suitable) is used as the resin elastic ring 31, and in order to reduce the occurrence of slipping, bending, loosening, etc. It is fitted in the concave groove 14 in a state where a predetermined tension is generated.

On the other hand, an outer ring 13 as a fixing member for causing the container 11 to rotate is fixed to the case 20. For example, it is formed using a stainless steel material or the like, but may be formed using other metal materials or resin materials.
As a more specific configuration, the outer ring 13 according to the present embodiment has an abutting surface 13a provided in an annular shape along the circumferential direction in the inner peripheral portion, as shown in FIGS. The contact surface 13a is formed in a curved surface (conical inner surface) along the inner peripheral portion, and is in contact with the contact portion 11a (here, the resin elastic ring 31) provided on the outer peripheral portion of the container holder 11. It becomes the contact surface. The contact surface 13a is set at a predetermined angle (for example, the same angle as θ or the same level as θ described later) with respect to the arrangement surface of the outer ring 13 provided in parallel with the revolution surface of the revolution member 12. Is formed).

  The container holder 11 and the outer ring 13 configured as described above are arranged so that the contact portion 11a (here, the resin elastic ring 31) and the contact surface 13a contact each other.

On the other hand, as shown in FIG. 4, the container 2 has a bottomed cylindrical main body 2A provided with an opening 2a at the top, an inner lid 2B fitted into the opening 2a, and an opening from the outside. And an outer lid 2C combined with 2a.
The material to be agitated and defoamed is put into the main body 2A from the opening 2a with the inner lid 2B and the outer lid 2C removed, and then the inner lid 2B and the outer lid 2C are put into the main body 2A. Are mated and combined.
In the present embodiment, the inner lid 2B and the outer lid 2C are provided with the vent holes 2b and 2c, respectively, but the vent holes 2b and 2c may be appropriately omitted. Further, the inner lid 2B and the outer lid 2C may be appropriately omitted.

As shown in FIGS. 1 and 2, the container 2 is held by the container holder 11 by being inserted into the opening of the container holder 11 having an upper portion formed in a cup shape from the bottom side. At that time, the protrusions 2 d (two in this embodiment) provided on the outer peripheral portion of the main body 2 </ b> A of the container 2 are engaged with the grooves 11 b provided on the container holder 11.
According to this, when the container holder 11 rotates (rotates), the container 2 is prevented from rotating in the circumferential direction with respect to the container holder 11, and the rotational force of the container holder 11 is transmitted to the container 2. The effect | action which rotates the said container 2 (autorotation) can be acquired.

  In addition, the container 2 which concerns on this embodiment is formed in the shape which has the some convex-shaped part 2f in the inner wall face 2e, as shown in FIG. According to this, when the container 2 in which the material is stored is rotated, the convex portion 2f acts as a resistance and an outer blade action, and the stirring of the material is promoted, so that the stirring action can be further enhanced. Become. However, the present invention is not limited to this, and a configuration in which the convex portion 2f is not provided is also conceivable.

According to the said structure, when the revolution member 12 revolved, it provided in the contact part 11a (here resin elastic ring 31) provided in the outer peripheral part of the container holder 11, and the inner peripheral part of the outer ring 13 The container holder 11 rotates by the frictional force generated by the contact with the contact surface 13a. Therefore, the container holder 11 and the container 2 held by the container holder 11 can revolve and rotate. Thereby, it becomes possible to stir and degas the material accommodated in the container 2 effectively.
In particular, in this embodiment, the revolution direction of the revolution member 12, that is, the revolution direction of the container holder 11 and the container 2 held by the container holder 11, and the rotation of the container holder 11 and the container 2 held by the container holder 11 are rotated. The direction can be reversed. As a result, compared with the case where the revolution direction and the rotation direction of the container holder 11 (container 2) are the same direction, the stirring effect of the material in the container 2 can be remarkably improved. This effect has been proved as a result of a comparative experiment using a high viscosity stirring material such as grease.

  In the present embodiment, the container holder 11 is arranged such that the rotation axis R forms a predetermined angle θ with respect to the arrangement surface of the outer ring 13 provided in parallel with the revolution surface of the revolution member 12. (See FIG. 1). As an example, 40 [°] ≦ θ ≦ 60 [°] is set. Thus, by carrying out rotation and revolution while holding the container 2 in a state where the container 2 is inclined by a predetermined angle, the effect of stirring and defoaming the material in the container 2 can be further enhanced.

  Here, as a characteristic configuration of the present embodiment, the agitation / defoaming device 1 communicates with the cool air generator 7 that generates cool air and the cool air generator 7, and blows out cool air (indicated by reference symbol C). And a nozzle 8 that sprays on the outer periphery of the container 2 (see FIGS. 1 and 2). As an example, four nozzles 8 are arranged at equal intervals in the circumferential direction, and the cold air C blown from each nozzle 8 is set to always inject, but is not limited thereto. In FIG. 1 and FIG. 2, the piping connecting the cool air generator 7 and the nozzle 8 is omitted for the sake of simplicity.

  In the present embodiment, a cold air generator (product name: jet cooler VT series) manufactured by Nippon Seiki Co., Ltd. is used as the cold air generator 7. The cold air generation mechanism applies vortex theory, and rotates the supplied compressed air at high speed in the tube to divide it into cold air and hot air, and takes out the cold air for use. For example, it is possible to generate cold air having a temperature 40 [° C.] or 60 [° C.] lower than the supply air temperature.

Furthermore, as a characteristic configuration of the present embodiment, the container holder 11 is formed such that the outer peripheral portion of the container 2 is exposed at a lower portion that is a lower position in the axial direction than the upper portion where the contact portion 11a is provided. A hole 11B is provided (see FIG. 3). As an example, the holes 11B are formed in a circular shape, and four holes 11B are provided at equal intervals in the circumferential direction. However, the present invention is not limited to this.
According to this configuration, the cold air C blown from the nozzle 8 is passed through the hole 11B of the rotating and revolving container holder 11 and blown to the outer peripheral portion of the container 2 held by the container holder 11. It is possible to cool by hitting.

  In particular, in the present embodiment, as shown in FIGS. The blown out cold air C can be blocked by the hook-shaped member 11A having the contact portion 11a provided at the tip. That is, it is possible to prevent the cold air C from flowing out and diffusing upward in the axial direction of the container holder 11, and the cold air C can be retained in a portion between the nozzle 8 and the lower surface of the bowl-shaped member 11A. Therefore, the cooling efficiency of the container 2 can be increased.

  In the stirring / defoaming apparatus 1 according to the present embodiment, an operation panel for setting and operating cold air generation in the cold air generator 7 and rotation (revolution) speed, rotation time, vacuum pressure, etc. of the revolving member 12 ( (Not shown) is provided, and by issuing a command to the control unit (not shown) from the operation panel, the cold air is generated and stopped in the cold air generator 7, and the rotation speed, rotation time, and vacuum pump 6 of the revolving member 12 are provided. The pressure in the case 20 that is evacuated is controlled.

As described above, according to the stirring / defoaming apparatus 1 according to the present embodiment, even when stirring / defoaming a material having a high viscosity, the outer periphery of the container 2 is accommodated inside by cooling. Since the formed material can be cooled, an increase in temperature due to heat generation of the material due to frictional force or shearing force acting on the material can be suppressed.
As a result, it is possible to solve the problem that the viscosity is lowered due to the temperature rise of the material and the stirring action is lowered, and reliable stirring and defoaming can be performed. Moreover, since an excessive temperature rise of the material can be prevented, it is possible to prevent the material from being altered.
In particular, when a powder is mixed with a monomer material such as exemplified in a dental paste and stirred, conventionally, the material is softened due to heat generation of the material and the stirring is not sufficiently performed, so-called minute “dama” remains. However, such a problem can be solved.

Here, with respect to the stirring / defoaming apparatus 1 according to the present embodiment, a specific problem may occur when the container 2 is cooled.
For example, the case where the full length of the contact surface 13a of the outer ring 13 is set to twice the full length of the contact portion 11a (here, the resin elastic ring 31) of the container holder 11 is assumed. The container 2 performs two rotations per revolution. Here, when the number of the holes 11B of the container holder 11 is four and the number of the nozzles 8 is four, and they are arranged at equal intervals in the circumferential direction, the positional relationship shown in FIG. 5A is obtained. (Numbers 1 to 4 with circles represent the positions of the four holes 11B in one container 2 extracted as a representative example, and (1) to (4) represent the positions of the four nozzles 8). That is, when the apparatus is installed so that the position of the hole 11B of the container holder 11 is aligned with the position of the nozzle 8, the nozzle 8 (in this case, (1) to ( The cold air blown out from 4)) is blown to the hole 11B of the container 2 (in this case, two of the circled numbers 1, 3), and the cold air C passing through the hole 11B causes the container to The effect | action in which the outer peripheral part of 2 is cooled is acquired. However, if sliding, bending, loosening, or the like occurs in the contact between the resin elastic ring 31 and the contact surface 13a, the hole as shown in FIG. Therefore, the position of 11B and the position of the nozzle 8 do not coincide with each other. In that case, even if the cold air C blown out from the nozzle 8 is set to always inject, the cold air C is blown against the wall portion between the adjacent hole portions 11B and 11B, and therefore passes through the hole portion 11B. The outer periphery of the container 2 cannot be cooled. This is a problem peculiar to the agitation / defoaming apparatus 1 according to the present embodiment in which the container rotates by friction between the contact surface 13a of the outer ring 13 and the contact portion 11a of the container holder 11. Note that the problem can occur without being limited to the case where the entire length of the contact surface 13 a exemplified for explanation is twice the total length of the resin elastic ring 31.

In order to solve the above problems, the stirring / defoaming apparatus 1 according to the present embodiment has the following characteristic configuration.
That is, as shown in FIG. 6, the container holder 11 has a wall width L1 between adjacent holes 11B, 11B in the circumferential direction that is greater than the circumferential injection width L2 of the cool air C blown from the nozzle 8. It is narrowly formed.

  According to this, in the case of the positional relationship as shown in FIG. 5B described above, even if the cold air C is blown against the wall portion between the adjacent holes 11B and 11B in the circumferential direction, the width of the wall portion Since L1 is formed to be narrower than the circumferential injection width L2 of the cool air C, at least a part of the hole 11B is always within the injection region of the cold air C (specifically, within the circumferential injection width L2). Overlapping arrangements can be made (see FIG. 6). As a result, since it is possible to take in cold air from the overlapped portion into the hole portion 11B, the outer peripheral portion of the container 2 can be cooled.

  Further, even when cooling is possible as in the example shown in FIG. 5A described above, the cold air C is blown only to the two specific holes 11B despite the four holes 11B. Thus, the cooling efficiency may be lowered.

  In order to solve this, as shown in FIG. 3, the container holder 11 includes a small-diameter portion 11C formed to have the same inner diameter as the outer diameter of the container 2 so that the container 2 can be accommodated and held; It is formed in an internal shape having a large diameter portion 11D having a larger inner diameter than the small diameter portion 11C. Further, the hole portion 11B is formed at the position of the large diameter portion 11D.

  According to this, it becomes possible to form the space portion 11d between the inner peripheral surface of the large diameter portion 11D of the container holder 11 and the outer peripheral surface of the container 2 at the position where the hole portion 11B is provided. As a result, the cold air blown to the hole 11B of the container holder 11 can pass through the space 11d from the hole 11B and spread over the entire circumference of the outer peripheral surface of the container 2. Therefore, the efficiency of cooling the container 2 can be significantly increased.

As another configuration, the stirring / defoaming apparatus 1 according to the present embodiment includes a vacuum pump 6 that evacuates the inside of the case 20. The degree of vacuum by the vacuum pump 6 can be set as appropriate. As an example, the inside of the case 20 is in a vacuum state of about atmospheric pressure to 10 [Pa].
According to this, it becomes possible to further enhance the defoaming action by evacuating the case 20 and performing stirring and defoaming. Note that the vacuum pump 6 is not operated when the cold air C is blown from the nozzle 8.

On the other hand, as shown in FIG. 1, the case 20 includes a main body portion 21 and a lid portion 22 disposed on the upper portion of the main body portion 21. Further, the lid portion 22 is fixed to the main body portion 21 so as to be opened and closed using a hinge (not shown), and the case 20 can be hermetically sealed by being formed in a structure that can be in close contact with the main body portion 21. It is formed in the structure which becomes.
According to this, the container 2 can be attached to and detached from the container holder 11 by opening the lid 22. On the other hand, by closing the lid 22, the inside of the case 20 can be evacuated, and in this state, the container 2 can be rotated and revolved to stir and degas the material in the container 2. Become. As an example, the lid portion 22 is formed using a transparent resin material.

  As shown in FIG. 1, the revolving member 12 has a rotating shaft 12 a that penetrates the main body 21 of the case 20, and the rotating shaft 12 a can rotate in the circumferential direction and can hold the vacuum in the case 20. It is being fixed to the main-body part 21 of the case 20 via the bearing (for example, magnetic fluid bearing) which becomes. Here, the revolving member 12 may have a disk shape, an arm shape, a combination thereof, or the like. In this embodiment, in order to support the container holder 11 so as to be able to rotate by tilting at a predetermined inclination angle θ with respect to the revolution surface (the revolution axis, ie, the surface orthogonal to the central axis S of the rotation shaft 12a), the revolution member 12 Has a bent portion 12b in the radial direction. When the revolving member 12 is rotated (revolved) and a centrifugal force acts on the container holder 11 (and the container 2), the revolving member 12 is particularly bent so that the bent portion 12b approaches a state parallel to the revolution surface. Therefore, the revolution member 12 is preferably formed using a high-strength and lightweight material such as duralumin. However, it is not limited to this.

  Moreover, the rotating shaft 12a and the rotating shaft 3a of the motor 3 are connected via the driving force transmission means. In the present embodiment, the first pulley 4a, the second pulley 4b, and the belt 5 are used as the driving force transmission means. However, the present invention is not limited to this, and it is configured using a gear or the like. May be.

  According to this, when the motor 3 operates and the rotational driving force is transmitted to the rotating shaft 12a via the driving force transmitting means, and the rotating shaft 12a rotates, the revolving member 12 rotates in the circumferential direction accordingly. . Therefore, the container holder 11 fixed to the revolving member 12 and the container 2 held by the container holder 11 revolve (revolve) on a fixed orbit in the same plane with the central axis S of the rotation shaft 12a as the rotation center. ). Further, when the revolving member 12 revolves, the container holder 11 rotates due to the frictional force generated by the contact between the contact portion 11 a on the outer peripheral portion of the container holder 11 and the contact surface 13 a on the inner peripheral portion of the outer ring 13. To do. The revolution speed and rotation speed at that time are appropriately set according to the material.

In this embodiment, the total length of the contact surface 13a of the outer ring 13 (that is, the circumferential length of the contact surface) is the total length of the resin elastic ring 31 of the contact portion 11a of the container holder 11 (that is, the length of the contact portion). It is formed so as to be longer than (circumferential length).
According to this, it becomes possible to increase the rotation speed (rotation speed [rpm]) relative to the revolution speed (rotation speed [rpm]), and the stirring ability can be increased.
As an example, the total length of the contact surface 13 a of the outer ring 13 is set to twice the total length of the resin elastic ring 31 of the container holder 11. Therefore, when the revolution speed is set to 800 [rpm], the rotation speed is set to 1600 [rpm] according to the ratio (here 2: 1) of the total length of the contact surface 13a and the total length of the resin elastic ring 31. Will be set. The revolution speed and the rotation speed are not the upper limit, and can be further increased.

(Second embodiment)
Then, the stirring and defoaming apparatus 1 which concerns on 2nd embodiment of this invention is demonstrated. The stirring / defoaming apparatus 1 according to the second embodiment has the same basic configuration as that of the first embodiment described above, but particularly has a difference in the configuration of the cold air generator. Here, in FIG. 7, while showing the example of the stirring and defoaming apparatus 1 which concerns on 2nd embodiment, it demonstrates centering on the said difference.

In the present embodiment, Green Tech Japan DRY-ICE \ POWER (registered trademark) is used as the cold air generator 7. The cold air generation mechanism uses dry ice such as pellets as a raw material, and the dry ice is powdered and sprayed from a nozzle. For example, cooling can be performed by injecting air containing dry ice at −79 [° C.].
In addition, the code | symbol 42 in FIG. 7 is a valve | bulb for switching sending / stop of cold air.

  Here, in the present embodiment, by using the cold air generator 7, a strong cooling action can be obtained, so cold air (here, dry ice-containing air) is blown out and blown to the outer peripheral portion of the container 2. A configuration is adopted in which a single nozzle 8 is disposed (see FIG. 7). However, the present invention is not limited to this, and a configuration may be adopted in which a plurality of nozzles 8 are disposed as in the first embodiment described above.

  It should be noted that the pipes connecting the cool air generator 7 and the nozzle 8 and the shape of the nozzle 8 have a predetermined cooling action as shown in FIG. This is an important configuration for generating

(Third embodiment)
Then, the stirring and defoaming apparatus 1 which concerns on 3rd embodiment of this invention is demonstrated. The stirring / defoaming apparatus 1 according to the third embodiment has the same basic configuration as that of the second embodiment described above, but has a difference particularly in a configuration including a dry air generator. Here, in FIG. 8, while showing the example of the stirring and defoaming apparatus 1 which concerns on 3rd embodiment, it demonstrates centering on the said difference.

For example, with respect to the agitation / defoaming device 1 according to the first and second embodiments described above, a specific problem may occur when the container 2 is cooled.
Specifically, after the cool air is blown from the cold air generator 7 to the container 2 to cool the container 2 (or the contained material), the cover 22 of the case 20 is opened to remove the atmosphere. 20, and the inside of the case 20 is dewed. Therefore, when the agitation / defoaming device 1 is continuously operated, the dew condensation causes the contact portion 11 a (here, the container holder 11). The resin elastic ring 31) slips against the contact surface 13a of the outer ring 13, and the container holder 11 is not rotated.

In order to solve the above problems, the stirring / defoaming apparatus 1 according to the present embodiment has the following characteristic configuration.
That is, in this embodiment, as shown in FIG. 8, a dry air generator 40 for generating dry air adjusted (dried) to a predetermined humidity (lower humidity than the atmosphere), and a dry air generator An introduction pipe 41 that communicates with 40 and introduces dry air into the case 20 is provided.

  As an example, a dry air compressor is used for the dry air generator 40. In the present embodiment, a dry air compressor having a discharge air amount of 250 [L / min] and an atmospheric pressure dew point of dry air of −20 [° C.] is used. However, it is not limited to this.

  In addition, a pipe that communicates with the dry air generator 40 and introduces dry air into the case 20 is configured to be connected in the middle of a pipe that connects the cool air generator 7 and the nozzle 8, and the nozzle 8 is used as the introduction pipe 41. The configuration is also used (see FIG. 8). However, the present invention is not limited to this configuration, and the nozzle 8 and the introduction pipe 41 may be provided separately (not shown). In addition, the codes | symbols 42 and 43 in FIG. 8 are the valves for switching sending / stop of cold air and dry air, respectively.

  According to this, said subject, ie, the dew condensation in the case 20 after cooling the container 2, can be prevented, and the rotation inability of the container holder 11 by a slip can be prevented. A specific operation method of the agitation / defoaming apparatus 1 for realizing this is as follows.

First, the container 2 containing the material is fixed to the container holder 11 in the case 20, and the lid 22 is closed to seal the inside of the case 20. At this time, the valves 42 and 43 are both closed.
Next, the valve 42 is opened, and the container 2 is rotated and revolved while being cooled by blowing the cool air generated by the cool air generator 7 onto the container 2 from the nozzle 8. At this time, the valve 43 is in a closed state.
Next, the valve 42 is closed and the blowing of cold air is stopped.
Next, the valve 43 is opened, and the dry air generated by the dry air generator 40 is introduced into the case 20 from the introduction pipe 41 (also used as the nozzle 8). At this time, the valve 42 is in a closed state.
Next, the lid 22 of the case 20 is opened while introducing dry air into the case 20, and the container 2 or the material in the container 2 is taken out.

  According to the above operation method, since the cool air in the case 20 is replaced with dry air, even if the lid portion 22 of the case 20 is opened after the container 2 is cooled, condensation occurs in the case 20. This makes it possible to solve the problem that the container 2 (container holder 11) due to the above-mentioned slip cannot rotate.

(Fourth embodiment)
Then, the stirring and defoaming apparatus 1 which concerns on 4th embodiment of this invention is demonstrated. The stirring / defoaming apparatus 1 according to the fourth embodiment has the same basic configuration as that of the third embodiment described above, but has a difference particularly in the configuration including the outer ring heating means 50. Here, in FIG. 9, while showing the example of the stirring and defoaming apparatus 1 which concerns on 4th embodiment, it demonstrates centering on the said difference.

  As described above, with the stirring and defoaming apparatus 1 according to the first and second embodiments, a specific problem may occur when the container 2 is cooled. That is, since the inside of the case 20 is condensed due to cooling by blowing cold air from the cold air generator 7 to the container 2, the agitation / defoaming device 1 is continuously operated thereafter. Due to the condensation, the contact portion 11a (the resin elastic ring 31 in this case) of the container holder 11 slips against the contact surface 13a of the outer ring 13, and the container holder 11 is not rotated. It is a problem that it ends up.

  In order to solve the problem, the configuration of the stirring / defoaming apparatus 1 according to the third embodiment described above is effective.

  However, also in the stirring / defoaming apparatus 1 according to the third embodiment, in the case of performing a continuous operation for a long time or a plurality of continuous operations, the container 2 is cooled in the same manner as described above. The possibility that the resulting condensation occurs on the contact surface 13a of the outer ring 13 cannot be denied.

  In order to solve the problem, in the present embodiment, as shown in FIG. 9, an outer ring heating means 50 for heating the outer ring 13 to a predetermined temperature is provided.

  The outer ring heating means 50 according to the present embodiment is an electric heater using a heating element, and is disposed on the surface of the outer ring 13. As an example, a flexible tape-like electric heater in which a heating element that generates heat when energized is provided is preferably used. The tape-shaped electric heater is wound around and pasted on the surface of the outer ring 13, particularly the outer peripheral surface. Therefore, it is not necessary to perform special processing on the outer ring 13, and neither the manufacturing process nor the device structure is complicated, so that it can be realized at a low cost. Moreover, since it only needs to stick on the outer peripheral surface of the outer ring 13, enforcement is also very easy. The electric heater is connected to a control device (not shown), and temperature control is performed so as to reach a predetermined temperature. Moreover, the structure which sticks the said electric heater on the outer peripheral surface of the outer ring 13 may be either continuous or intermittent.

  Here, the output of the electric heater as the outer ring heating means 50 may be appropriately set according to the cooling temperature in the case 20 or the like. As an example, the electric heater as the outer ring heating means 50 according to the present embodiment is wound in two rows on the outer peripheral surface of the outer ring 13 using two tape-shaped electric heaters having an output of 500 [W]. It is configured. The electric heater is not limited to a tape-shaped electric heater.

  According to the above configuration, the outer ring 13 is heated to a predetermined temperature by the outer ring heating means 50 (here, an electric heater) disposed (pasted) on the surface (here, the outer peripheral surface) of the outer ring 13. It becomes possible to do. Therefore, in particular, even when a continuous operation for a long time or a plurality of continuous operations is performed, dew condensation caused by cooling the container 2 occurs on the contact surface 13a of the outer ring 13. It can be effectively prevented. Therefore, due to the condensation, the contact portion 11a (here, the resin elastic ring 31) of the container holder 11 slips against the contact surface 13a of the outer ring 13, and the container holder 11 rotates. It is possible to solve the problem of being lost.

  In addition, the arrangement | positioning (sticking) location of the outer ring heating means 50 (here electric heater) is not limited to an outer peripheral surface, It is good also as an inner peripheral surface, an upper surface, or a lower surface. In particular, if the outer ring heating means 50 (here, an electric heater) is arranged (pasted) on the inner peripheral surface, it is closer to the contact surface 13a of the outer ring 13 that is the object of condensation prevention. Therefore, the heat transfer loss can be reduced, and a higher dew condensation prevention effect can be obtained with less power consumption.

  As another example, the outer ring heating means may be configured to heat the outer ring by providing a liquid flow path in the outer ring and allowing the heated liquid to flow through the flow path (not shown). ).

  Then, the heating method of the outer ring 13 by the outer ring heating means 50 is demonstrated. For example, there is a method in which heating by the outer ring heating means 50 is always performed during the operation of the stirring / defoaming apparatus 1. In addition, after the operation of the agitation / defoaming apparatus 1 is performed for a predetermined time, or by the outer ring heating means 50 at a predetermined timing such as between the previous operation and the next operation when the continuous operation is performed. It is good also as a method of heating. Further, a temperature measuring means (not shown) for measuring the temperature of the outer ring 13 may be provided, and heating by the outer ring heating means 50 may be performed when the temperature of the outer ring 13 becomes equal to or lower than a predetermined temperature. In addition, said heating method is an example, Comprising: It is not limited to these.

  As described above, according to the stirring / defoaming apparatus according to the present invention, the temperature rise of the material during stirring / defoaming can be suppressed. In addition, reliable stirring and defoaming can be performed, and alteration of the material can be prevented.

  The present invention is not limited to the embodiments described above, and various modifications can be made without departing from the present invention. In particular, the cold air generator is not limited to the configuration of the above-described embodiment, and a known cold air generator or air blower may be used.

Claims (7)

In a stirring and defoaming apparatus comprising a means for rotating and revolving a container, and rotating at least one of stirring and defoaming of the material contained in the container by rotating the container,
A plurality of container holders each holding a container;
A revolving member that rotatably supports each of the container holders and that rotates around a rotation axis, and revolves the container holder around the rotation axis;
Drive means for rotationally driving the revolution member;
A cold air generator for generating cold air, a nozzle that communicates with the cold air generator, blows out the cold air, and blows it to the outer periphery of the container;
An annular outer ring disposed so as to surround the container holder so that the inner peripheral part comes into contact with the outer peripheral part of all the container holders,
The container holder and the outer ring are disposed so that an abutting portion provided annularly on the outer peripheral portion of the container holder and an abutting surface provided on the inner peripheral portion of the outer ring abut. ,
The container holder revolves around the rotation shaft by the revolution of the revolving member and rotates by the frictional force received from the outer ring,
A case that is formed so as to be able to be sealed, and at least the container, the container holder, the revolving member, and the outer ring are disposed;
A dry air generator for generating dry air adjusted to a predetermined humidity;
An agitation / defoaming apparatus , further comprising: an introduction pipe that communicates with the dry air generator and introduces the dry air into the case . In a stirring and defoaming apparatus comprising a means for rotating and revolving a container, and rotating at least one of stirring and defoaming of the material contained in the container by rotating the container,
A plurality of container holders each holding a container;
A revolving member that rotatably supports each of the container holders and that rotates around a rotation axis, and revolves the container holder around the rotation axis;
Drive means for rotationally driving the revolution member;
A cool air generator that generates cool air
A nozzle that communicates with the cold air generator, blows out the cold air and blows it to the outer periphery of the container;
An annular outer ring disposed so as to surround the container holder so that the inner peripheral part comes into contact with the outer peripheral part of all the container holders,
The container holder and the outer ring are disposed so that an abutting portion provided annularly on the outer peripheral portion of the container holder and an abutting surface provided on the inner peripheral portion of the outer ring abut. ,
The container holder revolves around the rotation shaft by the revolution of the revolving member and rotates by the frictional force received from the outer ring,
An outer ring heating means for heating the outer ring to a predetermined temperature;
A stirring and defoaming device characterized by The stirring / defoaming apparatus according to claim 2, wherein the outer ring heating means is an electric heater using a heating element and is disposed on a surface of the outer ring. The container holder is provided with the abutting portion at the upper portion and a hole portion formed so that the outer peripheral portion of the container is exposed at the lower portion,
The abutting portion is provided at the distal end portion in the radial direction of the bowl-shaped member provided to extend in the radial direction from the outer peripheral portion of the container holder,
Cold air blown out from the nozzle, according to claim 1, characterized in that is blows on the outer peripheral portion of the container held in the container holder through a hole of the container holder has a rotation and revolution The stirring / defoaming apparatus according to any one of claims. Said container holder, the width of the wall portion between the hole portions adjacent in the circumferential direction, according to claim 4, characterized in that it is formed narrower than the circumferential direction of the injection width devoted cold blown from the nozzle Stirring and defoaming equipment. The container holder has a small diameter part formed to have the same inner diameter as the outer diameter of the container so that the container can be accommodated and held, and a large diameter part having an inner diameter larger than the small diameter part. And
The stirring / defoaming device according to claim 4 or 5 , wherein the hole is formed in the large diameter portion. Operation of an agitation / defoaming apparatus comprising means for rotating and revolving a container disposed in a case, and rotating and rotating the container to at least one of agitation and degassing of the material contained in the container A method,
With the case sealed, the container rotates and revolves while blowing cold air on the container,
Next, stop blowing the cold, introduce dry air into the case,
Next, the method for operating the stirring / defoaming apparatus is characterized in that the case or the material is taken out by opening the case while introducing the dry air into the case.

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