WO2017068995A1 - 攪拌・脱泡方法および攪拌・脱泡装置 - Google Patents
攪拌・脱泡方法および攪拌・脱泡装置 Download PDFInfo
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- WO2017068995A1 WO2017068995A1 PCT/JP2016/079869 JP2016079869W WO2017068995A1 WO 2017068995 A1 WO2017068995 A1 WO 2017068995A1 JP 2016079869 W JP2016079869 W JP 2016079869W WO 2017068995 A1 WO2017068995 A1 WO 2017068995A1
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- rotation
- speed
- revolution
- stirring
- rotation speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0042—Degasification of liquids modifying the liquid flow
- B01D19/0052—Degasification of liquids modifying the liquid flow in rotating vessels, vessels containing movable parts or in which centrifugal movement is caused
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0042—Degasification of liquids modifying the liquid flow
- B01D19/0052—Degasification of liquids modifying the liquid flow in rotating vessels, vessels containing movable parts or in which centrifugal movement is caused
- B01D19/0057—Degasification of liquids modifying the liquid flow in rotating vessels, vessels containing movable parts or in which centrifugal movement is caused the centrifugal movement being caused by a vortex, e.g. using a cyclone, or by a tangential inlet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F29/00—Mixers with rotating receptacles
- B01F29/10—Mixers with rotating receptacles with receptacles rotated about two different axes, e.g. receptacles having planetary motion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F29/00—Mixers with rotating receptacles
- B01F29/30—Mixing the contents of individual packages or containers, e.g. by rotating tins or bottles
- B01F29/31—Mixing the contents of individual packages or containers, e.g. by rotating tins or bottles the containers being supported by driving means, e.g. by rotating rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F29/00—Mixers with rotating receptacles
- B01F29/30—Mixing the contents of individual packages or containers, e.g. by rotating tins or bottles
- B01F29/34—Constructional details of holders for the individual packages or containers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F29/00—Mixers with rotating receptacles
- B01F29/90—Mixers with rotating receptacles with stirrers having planetary motion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/20—Mixing the contents of independent containers, e.g. test tubes
- B01F31/201—Holders therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
- B29B7/10—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
- B29B7/106—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary using rotary casings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/84—Venting or degassing ; Removing liquids, e.g. by evaporating components
- B29B7/845—Venting, degassing or removing evaporated components in devices with rotary stirrers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F29/00—Mixers with rotating receptacles
- B01F29/30—Mixing the contents of individual packages or containers, e.g. by rotating tins or bottles
- B01F29/32—Containers specially adapted for coupling to rotating frames or the like; Coupling means therefor
- B01F29/322—Containers specially adapted for coupling to rotating frames or the like; Coupling means therefor of two or more containers supported for simultaneous mixing, e.g. for bottles in crates
Definitions
- the present invention relates to a method for stirring and defoaming by rotating and rotating a container containing an object to be processed and a stirring and defoaming apparatus.
- the object to be processed is degassed by revolving the container, and the object to be processed is further stirred by rotating the container. That is, the object to be processed is pressed against the inner wall surface of the container by the centrifugal force of revolution, and bubbles are degassed by moving to the surface of the object to be processed, or competes along the container wall surface at the surface portion. Thus, a film of the object to be processed is formed, and bubbles larger than the thickness of the film are degassed by bursting. And by rotating a container, a to-be-processed object will flow in a vortex, and as a result, it will be stirred. Therefore, in the stirring / defoaming apparatus, it is important to achieve both the stirring and defoaming effects.
- Patent Document 1 discloses an apparatus that includes a revolution drive motor and a rotation drive motor and stirs and degass an object to be processed contained in a container by independently controlling the revolution motion and the rotation motion. Yes.
- Patent Document 2 discloses a technique for improving the defoaming effect by superimposing a periodic fluctuation component on the revolution movement and changing the rotation / revolution ratio (the rotation-to-revolution rotation speed ratio).
- Patent Document 3 discloses a technique for reversing revolution and rotation and improving stirring and defoaming performance.
- Patent Document 4 discloses a technique for increasing the defoaming effect by performing stirring and defoaming treatment under reduced pressure.
- the present invention has been made in view of the above problems, and it is a main object of the present invention to provide a stirring / defoaming method and a stirring / defoaming apparatus that achieve both the uniformity of dispersion of the object to be processed and the reduction of bubbles with high accuracy.
- the stirring and defoaming method includes: In the method of stirring and defoaming by revolving and rotating the container containing the workpiece,
- the rotation movement is Reverse rotation superposition processing in which rotation in the rotation direction opposite to the rotation direction of the revolution is superimposed at the first rotation number with respect to the rotation speed of the same rotation direction and the same rotation number as the revolution movement;
- the same rotation superimposition process in which the rotation in the same rotation direction as the revolution movement and the rotation speed in the same rotation speed are superimposed on the rotation in the same rotation direction as the rotation direction of the revolution at the second rotation speed; Are executed respectively.
- the same number of revolutions means substantially the same number of revolutions, and fine adjustment (for example, ten and several percents) due to fluctuations within the control range of the rotational drive motor, hardware or software control reasons, etc. Needless to say, it can be regarded as the same rotation speed.
- the stirring and defoaming method according to the present invention includes: The first rotation speed and the second rotation speed are the same rotation speed.
- the first rotational speed is in a range of 0.2 to 2.0 times with respect to the revolution rotational speed
- the second rotational speed is 0.05 to 1.6 times. It is a range.
- the stirring / defoaming method includes a process of executing the rotation superimposing process after the reverse rotation superimposing process.
- reverse rotation superimposition process may be executed after the same rotation superimposition process.
- the stirring and defoaming apparatus is A container holder with a rotation axis; A rotation unit that rotatably contacts the rotation shaft via a bearing, a revolution shaft coupled to the rotation unit, a revolution drive motor coupled to the revolution shaft by a first rotational motion transmitting means, and a second to the container holder
- the rotation drive shaft connected by the rotational motion transmission means, the rotation drive motor connected to the rotation drive shaft by the third rotational motion transmission means, the predetermined revolution speed, the first rotation speed, and the second rotation speed.
- a first storage unit for storing A first rotational speed obtained by subtracting the first rotational speed from the revolution speed stored in the first storage unit; and a second rotational speed obtained by adding the second rotational speed to the revolution speed.
- a calculation unit for calculating the rotation speed A second storage for storing the revolution speed, the first rotation speed, and the second rotation speed; A flow storage unit storing a processing order for driving the rotation driving motor at the first rotation speed or the second rotation speed; The revolution drive motor is driven in the predetermined revolution direction at the revolution speed, and the processing order stored in the flow storage section and the first rotation speed stored in the second storage section and the And a controller that reads the second rotation speed and drives the rotation drive motor at the first rotation speed or the second rotation speed in accordance with the processing order.
- the container holder can be revolved and rotated in two different rotation speeds in a predetermined processing order, and the workpiece can be agitated and degassed with high accuracy. Is possible.
- the stirring and defoaming apparatus is A container holder with a rotation axis; A rotating unit that rotatably contacts the rotating shaft via a bearing, a revolving shaft fixed to the rotating unit, a revolving drive motor having a rotor fixed to the revolving shaft, and a horizontal plate portion fixed to the revolving shaft; , A rotation driving motor connected to the container holder by a fourth rotational movement transmitting means and a rotation driving motor fixed to the horizontal plate portion and having a rotor connected to the rotation driving shaft; A first storage for storing a sign indicating a rotation direction associated with the revolution speed, the first rotation speed, the second rotation speed, and the first rotation speed and the second rotation speed; , A flow storage unit storing a processing order for driving the rotation driving motor at the first rotation speed or the second rotation speed; The revolution drive motor is driven in a prescribed revolution direction at a prescribed revolution speed, and the processing order stored in the second storage unit and the first rotation stored in the first storage unit The signs
- the agitation / deaeration device According to the agitation / deaeration device, the loss of power transmission from the revolution and rotation drive motor is suppressed, the container holder is revolved and rotated at two different rotation speeds, and the agitation and deaeration treatment is performed with high accuracy. It is possible to further reduce the size of the apparatus.
- stirring / defoaming method and the stirring / defoaming apparatus according to the present invention, high-precision stirring / defoaming is achieved by executing at least once each of the two kinds of treatment superior in the stirring effect and the defoaming effect.
- the processing can be realized and the manufacturing cost can be reduced.
- Sectional drawing of the stirring and defoaming apparatus of 1st Embodiment The schematic diagram which shows the relationship between revolution and rotation.
- the bird's-eye view which shows the direction of rotation superimposed on the revolution direction and rotation of a container.
- a photograph showing the transition of the reduction reaction.
- the graph which shows the stirring effect.
- An optical micrograph showing the defoaming effect.
- FIG. 1 is a cross-sectional view showing the internal structure of the stirring / defoaming apparatus of this embodiment.
- the object to be processed is accommodated in the container 1, and the container is inserted into the container holder 2.
- the material of the container polyethylene, ceramic, stainless steel, aluminum alloy, paper, or the like is selected according to the type of processing object to be accommodated and the processing content.
- the container holder 2 includes a rotation shaft 3 and is in contact with the rotary unit 5 via a bearing 4 so as to be freely rotatable.
- the rotating unit 5 can hold the container holder 2 while revolving. That is, the container holder 2 revolves together with the rotation unit 5.
- the bearing 4 may be a bearing that can individually and / or simultaneously support forces (due to rotation) applied to the rotation shaft 3 in the thrust direction and the radial direction.
- the rotation unit 5 is fixed to the revolution shaft 6. Therefore, a revolving motion, which will be described later, is transmitted to the rotating unit 5 via the revolving shaft 6.
- the revolution axis 6 is parallel to the vertical direction.
- the rotation axis 3 is inclined at a predetermined angle, for example, 50 ° with respect to the horizontal direction, and intersects with the rotation axis 3 at the predetermined angle.
- the tilt angle can be set to an arbitrary angle within the range of 0 ° (horizontal) to 90 ° (vertical).
- a pulley 8 is fixed to the shaft 7 a of the revolution drive motor 7, and a pulley 10 is fixed to the revolution shaft 6.
- the rotational motion of the revolution drive motor 7 is transmitted from the pulley 8 via the belt 9 to the pulley 10.
- the shaft 7 a is rotationally driven by the revolution drive motor 7, and the rotational motion is transmitted to the revolution shaft 6.
- the revolution drive motor 7 and the revolution shaft 6 are connected by the first rotational motion transmission means (power transmission means) by a combination of a pulley and a belt.
- the rotational motion transmission means is a combination of a pulley and a belt.
- a combination of gears may be used.
- a drive shaft may be interposed between the gears without increasing the gear (tooth diameter), and the portion where the drive motor is disposed may be offset from below the rotating unit.
- a gear 11 is fixed to the container holder 2, and a gear 13 is fixed to the rotation drive shaft 12.
- the gear 11 and the gear 13 are meshed with each other.
- the rotational movement of the rotation drive shaft 12 is transmitted to the container holder 2 via the gear 11 and the gear 13.
- the second rotational motion transmitting means by the combination of the gears connecting the rotation drive shaft 12 and the container holder 2 may be a combination of a pulley and a belt in addition to a combination of gears.
- the rotation drive shaft 12 has a cylindrical shape (pipe shape) and is in contact with the revolving shaft 6 through bearings 14a and 14b.
- a pulley 15 is fixed to the rotation drive shaft 12, and a pulley 17 is fixed to a shaft 16 a of the rotation drive motor 16.
- the rotational motion of the rotation drive motor 16 is transmitted from the pulley 17 to the pulley 15 via the belt 18. That is, the shaft 16 a is rotationally driven by the rotation driving motor 16, and the rotation motion is transmitted to the rotation driving shaft 12 and transmitted to the container holder 2.
- the bearings 14a and 14b may be bearings that can individually and / or simultaneously support the forces applied to the rotation shaft 3 in the thrust direction and the radial direction (due to rotation).
- the third rotational motion transmission means by the combination of the pulley and the belt for connecting the rotation drive motor 16 and the rotation drive shaft 12 may be a combination of a gear and a combination of a pulley and a belt.
- the revolution drive motor 7 and the rotation drive motor 16 are fixed to a fixed base 19, and a cylindrical body 20 is fixed to the fixed base 19.
- the rotation drive shaft 12 is in contact with the cylindrical body 20 via a bearing 21 so as to be rotatable.
- the bearing 21 may be a bearing that can individually and / or simultaneously support forces (due to rotation) applied to the rotation shaft 3 in the thrust direction and the radial direction.
- the container holder 2 can rotate while revolving.
- the revolution drive motor 7 and the rotation drive motor 16 for example, a servo motor can be used, but any motor that can control the rotation speed with high accuracy may be used.
- the rotation speed of revolution and rotation can be arbitrarily controlled by the rotation speed of the revolution drive motor 7 and the rotation drive motor 16.
- the revolution drive motor 7 and the rotation drive motor 16 can control not only the rotation speed but also the rotation direction, and any combination of rotation speed and rotation speed and rotation direction can be realized.
- control by the regenerative current at that time may be added while detecting the regenerative resistance by the drive control unit.
- the centrifugal force due to the rotation and revolving motion is given to the object to be processed and stirred and degassed.
- FIG. 2 schematically shows the temporal transition of the positional relationship between the revolving disk 100 and the rotating disk 101.
- A, B, C and D are points on the rotating disc 101
- ⁇ is a point on the revolving disc 100, which is described for convenience in order to visualize the state of rotation.
- the white arrow indicates the revolution direction
- the black arrow indicates the rotation direction.
- FIG. 2 (a), (b), (c), and (d) in FIG. 2 show the positional relationship between the disk 100 and the disk 101 when each of them rotates by a quarter of a turn.
- the rotating disk 101 appears as if it has stopped on the disk 100.
- the number of rotations means the number of rotations per unit time, and means the speed of rotation. Since the rotation speed is a vector quantity, the rotation direction and the rotation speed (speed of rotation) are defined as described above.
- two types of conditions are prepared by superimposing a predetermined rotational speed in the direction opposite to and in the same direction as the rotation direction of the revolution in addition to the above-described rotation motion. That is, processing conditions for rotating at ⁇ and ⁇ + ⁇ are prepared with the revolution speed being ⁇ (eg, ⁇ > 0) and the predetermined rotation speed being ⁇ (eg, ⁇ > 0).
- the stirring / defoaming process under each condition is referred to as a reverse rotation superimposition process and a same rotation superimposition process.
- rotation that is further superimposed on the rotational speed of revolution is referred to as “rotation that is superimposed on rotation”.
- the rotation direction can be related to the rotation speed by the sign. Accordingly, if the signs are the same for ⁇ , ⁇ , and ⁇ + ⁇ , the rotational drive directions of the revolution and rotation drive motors are the same.
- FIG. 3 shows the revolution direction of the container 1 and the direction of rotation superimposed on the rotation.
- the white arrow indicates the revolution direction
- the black arrow indicates the rotation direction.
- 3A shows the relationship between the rotation directions of rotation and revolution in the same rotation superimposing process
- FIG. 3B shows the reverse rotation superimposing process.
- the rotation direction of the rotation is preferably a counterclockwise direction in which the screw tightening of the container is not loosened, but is not limited thereto.
- ⁇ Stirring effect> As a means for confirming the stirring effect, a change in the color of the object to be treated due to the oxidation-reduction reaction was used. Specifically, it is as follows. First, after coloring a to-be-processed object by iodine starch reaction, the solution which added the reducing agent is accommodated in a container. Next, using a stirring / defoaming device, the reduction reaction is promoted by stirring the container under each processing condition, and the time until the color of the object to be processed disappears is measured. This time was used as an index of the stirring effect. The shorter this time, the greater the stirring effect.
- FIG. 4 is a photograph showing the color change during the stirring process of the object to be processed by comparing the reverse rotation superposition process and the same rotation superposition process.
- the revolution speed was set to 1000 [rpm]
- the rotation speed superimposed on the rotation in the reverse rotation superposition process and the same rotation superposition process was set to 500 [rpm].
- a stroboscopic image was taken from the upper part of the container.
- the black part in the container is a colored part due to the iodine starch reaction, and is an area where the reduction reaction is not completed.
- the time during which the black portion of the object to be processed in the container completely disappears is 370 seconds in the reverse rotation superimposition process and 640 seconds in the same rotation superimposition process.
- FIG. 5 is a graph showing measurement results of the stirring effect.
- the horizontal axis represents the number of rotations superimposed on the rotation, and the vertical axis represents the time until the color of the object to be processed disappears due to the reduction reaction.
- the defoaming effect was investigated from two viewpoints.
- One is an effect of removing bubbles present in the object to be processed, and the other is an effect of preventing mixing (generation) of new bubbles.
- the former is referred to as a defoaming effect, and the latter is referred to as a bubble mixing prevention effect.
- FIG. 6 is an optical micrograph showing the defoaming effect.
- Silicone oil viscosity 60000, 100000, 300,000 [cSt]
- the processing time dependence of the defoaming effect was evaluated for the reverse rotation superposition process and the same rotation superposition process.
- the state of the silicone oil before and after the treatment was photographed with an optical microscope at a magnification of 50 times.
- the stirring and defoaming treatment conditions were a revolution speed of 1000 [rpm] and a rotation speed superimposed on the rotation of 500 [rpm].
- the reason why the defoaming effect is improved in the same rotation superposition process is considered to be that the synergistic effect of revolution and rotation works particularly effectively for defoaming, and the film expands along the inner wall of the container to form an inherent film. It is considered that the bubbles to be moved easily move to the surface and the bubble breakage increased due to the thin film effect.
- FIG. 7 is an optical micrograph showing the effect of preventing bubble mixing.
- Silicone oil viscosity 60000, 100000, 300000 [cSt]
- the processing time dependency of bubbles mixed in the silicone oil was evaluated for the reverse rotation superimposition process and the same rotation superimposition process.
- the state of the silicone oil before and after the treatment was photographed with an optical microscope at a magnification of 50 times.
- the stirring and defoaming treatment conditions are as follows: revolution speed is 1000 [rpm], and rotation speed to be superimposed on rotation is 700, 500, and 300 [rpm] for silicone oils with viscosities of 60000, 100,000, and 300,000 [cSt], respectively. ].
- Table 1 shows a comparison between the stirring effect of the reverse rotation superimposition process and the defoaming effect of the same rotation superimposition process.
- Table 1 shows the results of evaluation of the dependency on the rotation speed (revolution speed ratio) superimposed on the rotation for each effect in four stages, and the effect is improved in the order of ⁇ ⁇ ⁇ .
- “reverse rotation” indicates reverse rotation superimposition processing
- “same rotation” indicates same rotation superimposition processing.
- the stirring effect of the reverse rotation superimposition process it can be seen that a higher effect can be obtained when the rotation speed to be superimposed on the rotation is smaller.
- the defoaming effect of the same rotation superimposing process it can be seen that a higher effect can be obtained when the rotation speed to be superimposed on the rotation is larger.
- the number of rotations to be superimposed on the rotation is set to 0.6 times the number of revolutions, and the reverse rotation superposition process and the same rotation superposition process are at least 1
- the optimum stirring and defoaming conditions can be easily obtained by executing the process once and adjusting each processing time.
- sufficient defoaming can be performed by increasing the processing time of the same rotation superimposing process, so that the effect required for the product can be obtained even under conditions where the stirring effect is prioritized.
- the number of rotations superimposed on the rotation may be 1.6 times the number of revolutions.
- the rotation speed to be superimposed on the rotation is set to 0.2 times the rotation speed of the revolution, and the processing times of the reverse rotation superimposition process and the same rotation superimposition process may be adjusted.
- the rotation direction of revolution and rotation is the same direction. It will be synergistic.
- the rotational direction of revolution and rotation is opposite, so the rotational speeds of rotation and revolution cancel each other.
- the conventional method of simply reversing the rotation direction or revolution direction does not provide an effective interference effect between rotation and revolution, and the difference between such remarkable effects is I can't get it.
- the condition for reducing the ratio of rotation to revolution was used.
- the reverse rotation superimposition process and the same rotation superimposition process are performed to perform the same rotation superimposition process.
- the number of rotations to be superimposed on the rotation can be set high, and the conditions can be selected in a wide range as compared with the conventional method. Thereby, it is possible to easily find the optimum condition for the suppression of the separation of the mixed liquid containing components having different specific gravities, which has been difficult in the past (or required a lot of labor).
- the number of rotations to be superimposed on the rotation is the same.
- the superimposing rotation numbers are appropriately adjusted and different rotation numbers are superimposed. Is also possible. That is, the rotation speed superimposed in the reverse direction in the reverse rotation superimposition process is the first rotation speed, the rotation speed superimposed in the same direction as the revolution in the rotation superimposition process is the second rotation speed, and the first rotation
- the number and the second rotational speed are not limited to the same rotational speed as described above, and may be different rotational speeds.
- the first rotation speed and the second rotation speed to be superimposed are set to be within a range that works effectively in the stirring and defoaming effect, and a wide range in which the stirring effect and the defoaming effect are emphasized, respectively. It is also possible to set the condition in. Specifically, the range of the first rotation speed at which the stirring effect is obtained from Table 1 is 0.2 times or more and 2.0 times or less with respect to the revolution speed, and the second defoaming effect is obtained. The range of the number of revolutions is 0.05 times or more and 1.6 times or less than the revolution number of revolutions, and each revolution number may be set within these ranges.
- the first rotational speed and the second rotational speed can be specified by a ratio with the revolution rotational speed, and these ratios are stored in advance in the device of the present invention to be described later. By calculating the first rotation speed and the second rotation speed, it is possible to reduce the labor and cost for determining the optimum condition.
- the start step is a step in which the object to be processed is accommodated in the container, the container is inserted into the container holder, the processing conditions are set, and the apparatus is operated.
- the end step is the rotation of the container. This means the step of removing the container from the container holder after confirming that it has completely stopped.
- FIG. 8 shows a flow of agitation / defoaming treatment by this apparatus.
- the flow is composed of a start step, a stirring step, a defoaming step, and an end step, and is mainly classified into the following four combinations of stirring and defoaming. Moreover, you may perform a some process in each stirring step and defoaming step. Note that, depending on the object to be processed and the purpose of the processing, only the stirring step or only the defoaming step may be used, and it goes without saying that this apparatus can be used in such a case.
- Each flow of the stirring / defoaming process includes the order of each step to be processed as described above and information on the contents of each step.
- the flow storage unit built in this apparatus stores the order of each step and the processing contents of each step in advance in association with each flow. Alternatively, the operator may input processing conditions at the start step and store them in the flow storage unit.
- the above flow can be processed efficiently (in a short time) in accordance with the required product standards (uniformity of dispersion and amount of bubbles mixed after processing).
- the operator selects or designates a desired flow in the start step.
- the revolution speed, the first revolution speed to be superimposed, and the second revolution speed are stored in a first storage unit built in the apparatus.
- the rotation speed itself may be stored, or a ratio with respect to the revolution rotation speed may be stored.
- the first storage unit and the flow storage unit may be the same device.
- an arithmetic unit made up of a microcomputer built in the apparatus makes the revolution speed, the first rotation speed, and the second rotation number Perform the operation. Specifically, the revolution speed, the first and second revolution speeds are read from the first storage unit, and the first revolution speed is calculated by subtracting the first revolution speed from the revolution speed, and the revolution speed is calculated. A second rotational speed is calculated by adding the second rotational speed to In addition, when the ratio with respect to the revolution speed of 1st rotation speed and 2nd rotation speed is stored, in the said calculating part, 1st rotation speed and 2nd rotation speed are calculated from these ratios and revolution speed. After calculating the first rotational speed and the second rotational speed, the first and second rotational speeds read from the first storage unit are not limited to the rotational speed itself, The ratio of the first rotational speed and the second rotational speed to the revolution rotational speed is also included.
- the calculation unit stores the first and second rotation speeds in the second storage unit.
- the first storage unit and the second storage unit may be the same device.
- control unit composed of a microcomputer or the like built in the apparatus reads the flow information (step order and processing contents of each step) designated in the start step from the flow storage unit. Thereafter, the control unit reads the revolution speed specified by the read flow, the first and second rotation speeds from the first storage unit and the second storage unit, and revolves according to the order of the specified steps.
- the drive motor and the rotation drive motor are controlled and driven.
- the calculation unit and the control unit may be the same device (for example, the same microcomputer).
- this agitation / defoaming device includes the rotation and revolution drive mechanism, the storage unit, the calculation unit, and the control unit, the reverse rotation superimposing process and the same rotation superimposing process can be performed according to the designated flow. It should be noted that an appropriate process step and / or drive control condition may be selected and controlled by comparing a numerical value calculated from the designated process condition with a process condition database stored in advance in the storage unit. . These step / condition selection processes may be automatically executed by the control unit.
- the revolution shaft is fixed to the rotor of the revolution drive motor, and the rotation drive shaft is fixed to the rotor of the rotation drive motor. Therefore, loss of power transmission between these rotating shafts and the drive motor can be prevented, and more accurate revolution and rotation can be controlled.
- the apparatus can be miniaturized.
- the container 1 is inserted into the container holder 22.
- the container holder 22 includes a rotation shaft 23.
- the rotation shaft 23 is in contact with the rotation unit 25 via a bearing 24 so as to be freely rotatable.
- the rotation unit 25 is fixed to the horizontal plate portion 26, and the horizontal plate portion 26 is fixed to the revolution shaft 27.
- the revolution drive motor 28 includes a rotor 29 and a stator 30.
- the stator 30 is fixed to the fixed base 32 via the casing 31 of the revolution drive motor 28.
- the rotor 29 is fixed to the revolution shaft 27 and is in contact with the casing 31 of the revolution drive motor 28 via a bearing 33 so as to be freely rotatable. Accordingly, the revolution shaft 27 rotates with respect to the fixed base 32.
- the revolution shaft 27, the horizontal plate portion 26, and the rotation unit 25 are fixed to each other, they are directly driven by the revolution drive motor 28 and revolve. As a result, the container holder 22 also revolves.
- the rotation drive motor 34 is fixed to the horizontal plate portion 26. Therefore, the revolution drive motor 28 causes the revolution shaft 27, the horizontal plate portion 26, and the rotation drive motor 34 to revolve simultaneously.
- the rotation drive motor 34 includes a stator 35 and a rotor 36, and the stator 35 is fixed to the horizontal plate portion 26 via a casing 37 of the rotation drive motor 34, and the rotor 36 is fixed to a rotation drive shaft 38.
- the rotation drive shaft 38 is in contact with the revolution shaft 27 through a bearing 39 so as to be rotatable, and is directly driven by the rotation drive motor 34.
- the gear 40 is fixed to the rotation drive shaft 38, and the gear 41 is fixed to the container holder 22. Since the gear 40 meshes with the gear 41, the rotational movement of the rotation drive motor 34 is transmitted to the container holder 22, and the container holder 22 rotates about the rotation axis 23.
- the rotation axis 23 is inclined with respect to the revolution axis 27 at a predetermined angle between 0 and 90 °, for example, 50 °.
- a predetermined angle between 0 and 90 °, for example, 50 °.
- the rotation drive motor 34 revolves, the rotation motion is superimposed on the rotation motion of the rotation drive motor 34. Accordingly, the rotation drive motor 34 only needs to control the rotation to be superimposed in the reverse rotation superimposing process and the same rotation superimposing process. In addition to the control of the rotation to be superimposed, it is preferable to control the mutual influence of the inertial force due to the revolution rotation and the inertial force due to the rotation rotation.
- the revolution speed is stored in the first storage unit, and the first rotation speed superimposed on the revolution as the first rotation speed is superimposed on the revolution as the second rotation speed.
- the second rotational speed is stored in a first storage unit built in the apparatus.
- Rotation directions of the first and second rotations are opposite to each other, and the first storage unit also stores a sign indicating the rotation direction associated with the first and second rotation speeds. For example, with a clockwise value as a positive value, a positive or negative value corresponding to the rotation direction may be assigned to the revolution speed, the first rotation speed, and the second rotation speed. Alternatively, a sign indicating the rotation direction is separately assigned, the clockwise direction is set to “1”, the counterclockwise direction is set to “0”, and the first storage unit is associated with the revolution speed and the first and second rotation speeds. May be stored.
- the control unit composed of a microcomputer or the like built in the apparatus drives the revolution drive motor 28 and the rotation drive motor 34 according to a specified flow. That is, the control unit reads a predetermined flow stored in a flow storage unit built in the apparatus, and revolves at the revolution speed stored in the first storage unit in accordance with the processing order of the read flow.
- the motor 28 drives the rotation drive motor 34 in accordance with the first rotation speed and its rotation direction or the second rotation speed and its rotation direction.
- the control unit can control the revolution drive motor 28 and the rotation drive motor 34 with electric power supplied via the slip ring 42.
- a power feeding means for a known high-speed rotating object such as a rotary connector or wireless power transmission may be employed.
- two drive motors are used, but one drive motor may be used to control revolution and rotation using power transmission means and a powder brake.
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Abstract
Description
被処理物が収容された容器を公転及び自転運動させることで攪拌・脱泡する方法において、
前記自転運動は、
前記公転運動と同じ回転方向かつ同じ回転数の回転速度に対し、第1の回転数で前記公転の回転方向と逆の回転方向の回転を重畳した逆回転重畳処理と、
前記公転運動と同じ回転方向かつ同じ回転数の回転速度に対し、第2の回転数で前記公転の回転方向と同じ回転方向の回転を重畳した同回転重畳処理と、
をそれぞれ実行することを特徴とする。
前記第1の回転数と前記第2の回転数とが同じ回転数であることを特徴とする。
自転軸を備えた容器ホルダーと、
軸受けを介して前記自転軸が回転可能に接する回転ユニットと
前記回転ユニットに連結された公転軸と
前記公転軸に第1の回転運動伝達手段により連結された公転駆動モータと
前記容器ホルダーに第2の回転運動伝達手段により連結された自転駆動軸と
前記自転駆動軸に第3の回転運動伝達手段により連結された自転駆動モータと
所定の公転回転数、第1の回転数および第2の回転数を格納する第1の記憶部と、
前記第1の記憶部に格納された前記公転回転数に前記第1の回転数を減じた第1の自転回転数、及び前記公転回転数に前記第2の回転数を加えた第2の自転回転数を算出する演算部と、
前記公転回転数、前記第1の自転回転数及び前記第2の自転回転数を格納する第2の記憶部と、
前記自転駆動モータを前記第1の自転回転数または前記第2の自転回転数で駆動させる処理順を格納したフロー記憶部と、
前記公転駆動モータを前記公転回転数で所定の公転方向に駆動させるとともに、前記フロー記憶部に格納された前記処理順および前記第2の記憶部に格納された前記第1の自転回転数および前記第2の自転回転数を読み込み、前記処理順に従い前記第1の自転回転数または前記第2の自転回転数で前記自転駆動モータを駆動させる制御部とを
備えたことを特徴とする。
自転軸を備えた容器ホルダーと、
軸受けを介して前記自転軸が回転可能に接する回転ユニットと
前記回転ユニットに固定された公転軸と
前記公転軸に固定されたローターを有する公転駆動モータと
前記公転軸に固定された水平板部と、
前記容器ホルダーに第4の回転運動伝達手段により連結された自転駆動軸と
前記水平板部に固定されるとともに、前記自転駆動軸に連結されたローターを有する自転駆動モータと、
前記公転回転数、第1の自転回転数および第2の自転回転数並びに第1の自転回転数および第2の自転回転数に関連付けられた回転方向を示す符合を格納する第1の記憶部と、
前記自転駆動モータを前記第1の自転回転数または前記第2の自転回転数で駆動させる処理順を格納したフロー記憶部と、
前記公転駆動モータを所定の公転回転数で、所定の公転方向に駆動させるとともに、前記第2の記憶部に格納された前記処理順および前記第1の記憶部に格納された前記第1の自転回転数および前記第2の自転回転数並びに第1の自転回転数および第2の自転回転数に関連付けられた回転方向を示す符合を読み込み、前記処理順に従い前記第1の自転回転数および前記第2の自転回転数で前記自転駆動モータを駆動させる制御部とを
備えたことを特徴とする。
以下では、本発明にかかる攪拌・脱泡方法の第1の実施形態について説明する。
図1は、本実施形態の攪拌・脱泡装置の内部構造を示す断面図である。被処理物は、容器1に収容され、容器は、容器ホルダー2に挿入される。なお、容器の材質は、収容する被処理物の種類や処理内容に等に応じて、ポリエチレン、セラミック、ステンレス、アルミニウム合金、紙等が選択される。
本発明においては、攪拌処理と脱泡処理についての効果がそれぞれ異なる2種の処理条件を用意し、それぞれの処理を実行することにより攪拌・脱泡処理を行う。その具体的処理条件および効果について、以下詳細に説明する。
攪拌効果を確認する手段として、酸化還元反応による被処理物の色の変化を利用した。具体的には以下の通りである。まず、ヨウ素デンプン反応により、被処理物を着色後、還元剤を加えた溶液を容器に収容する。次に、攪拌・脱泡装置を用い、容器を各処理条件にて攪拌することにより還元反応を促進し、被処理物の色が消失するまでの時間を計測する。この時間を攪拌効果の指標とした。この時間が短い程、攪拌効果が大きいことを意味する。
次に、脱泡効果を2つの観点から調査した。1つは被処理物に内在する気泡を除去する効果、もう1つは新たな気泡の混入(生成)を防止する効果である。以下では、前者は脱泡効果、後者は気泡混入防止効果と称す。
逆回転重畳処理および同回転重畳処理を利用した、攪拌・脱泡処理のフローを以下に説明する。以下では各ステップ(工程)の処理の特性を明確にするため、攪拌を主な目的とする処理を攪拌ステップ、脱泡を主な目的とする処理を脱泡ステップと称し、攪拌ステップでは逆回転重畳処理、脱泡ステップでは同回転重畳処理を実行する。
本フローは、攪拌ステップにより攪拌後、除去すべき気泡を脱泡ステップにおいて除去することを目的とする。
本フローは、脱泡ステップにおいて、被処理物を容器に投入した際に発生する泡を除去し、気泡の無い状態で攪拌を行うことを目的とする。
本フローは、フロー2と同様にまず気泡を除去し、気泡の無い状態で攪拌を行い、最後に攪拌ステップで発生した気泡を除去することを目的とする。
本フローは、攪拌ステップにより攪拌後、除去すべき気泡を脱泡ステップにおいて除去するが、脱泡ステップにおいて被処理物が競り上がった場合に対応し、次工程での使用の便を図るため、最後に攪拌ステップにより被処理物の表面を平坦化することを目的とする。
主に攪拌処理が必要な場合に適用するフローである。
主に脱泡処理が必要な場合に適用するフローである。
上述の装置においては、公転と自転とを駆動するモータをそれぞれ別個に備えた駆動機構であるため、それぞれのステップに応じて、自転に重畳する回転数を、公転と独立に変更可能である。逆回転重畳処理においては、公転と同一の回転数に、所定の回転数を減じた回転数で自転駆動モータが回転し、同回転重畳処理においては、公転と同一の回転数に、所定の回転数を加えた回転数で自転駆動モータが回転する。装置に内蔵された制御部は、上記フローで指定される各ステップにおいて、指定された処理条件で攪拌・脱泡処理を実行する。装置における具体的な実行内容は、以下の通りである。
第1の実施形態においては、図1に記載の通り、固定ベースに固定された2つのモータを用いて、公転および自転の駆動を行っている。第2の実施形態においては、公転駆動モータ上に自転駆動モータを配した構成をなす。本構成においては、公転駆動モータの公転運動を自転駆動モータの本体に伝達する。その結果、自転駆動モータの本体が公転しながら、容器ホルダーに自転運動を伝達する。
2 容器ホルダー
3 自転軸
4 軸受
5 回転ユニット
6 公転軸
7 公転駆動モータ
7a シャフト
8 プーリー
9 ベルト
10 プーリー
11 歯車
12 自転駆動軸
13 歯車
14a、14b 軸受
15 プーリー
16 自転駆動モータ
16a シャフト
17 プーリー
18 ベルト
19 固定ベース
20 筒状体
21 軸受
22 容器ホルダー
23 自転軸
24 軸受
25 回転ユニット
26 水平板部
27 公転軸
28 公転駆動モータ
29 ローター
30 ステーター
31 ケーシング
32 固定ベース
33 軸受
34 自転駆動モータ
35 ステーター
36 ローター
37 ケーシング
38 自転駆動軸
39 軸受
40 歯車
41 歯車
42 スリップリング
Claims (7)
- 被処理物が収容された容器を公転及び自転させることで攪拌・脱泡する方法において、
前記自転運動は、
前記公転運動と同じ回転方向かつ同じ回転数の回転速度に対し、第1の回転数で前記公転の回転方向と逆の回転方向の回転を重畳した逆回転重畳処理と、
前記公転運動と同じ回転方向かつ同じ回転数の回転速度に対し、第2の回転数で前記公転の回転方向と同じ回転方向の回転を重畳した同回転重畳処理と、
をそれぞれ実行することを特徴とする攪拌・脱泡方法。 - 前記第1の回転数と前記第2の回転数とが同じ回転数であることを特徴とする請求項1記載の攪拌・脱泡方法。
- 前記第1の回転数は、公転回転数に対して0.2倍以上、2.0倍以下の範囲であり、前記第2の回転数は、0.05倍以上、1.6倍以下の範囲であることを特徴とする請求項1記載の攪拌・脱泡方法。
- 前記逆回転重畳処理の後に前記同回転重畳処理を実行する処理を含むことを特徴とする請求項1乃至3のいずれか1項記載の攪拌・脱泡方法。
- 前記同回転重畳処理の後に前記逆回転重畳処理を実行する処理を含むことを特徴とする請求項1乃至3のいずれか1項記載の攪拌・脱泡方法。
- 自転軸を備えた容器ホルダーと、
軸受けを介して前記自転軸が回転可能に接する回転ユニットと
前記回転ユニットに連結された公転軸と
前記公転軸に第1の回転運動伝達手段により連結された公転駆動モータと
前記容器ホルダーに第2の回転運動伝達手段により連結された自転駆動軸と
前記自転駆動軸に第3の回転運動伝達手段により連結された自転駆動モータと
所定の公転回転数、第1の回転数および第2の回転数を格納する第1の記憶部と、
前記第1の記憶部に格納された前記公転回転数に前記第1の回転数を減じた第1の自転回転数、及び前記公転回転数に前記第2の回転数を加えた第2の自転回転数を算出する演算部と、
前記公転回転数、前記第1の自転回転数及び前記第2の自転回転数を格納する第2の記憶部と、
前記自転駆動モータを前記第1の自転回転数または前記第2の自転回転数で駆動させる処理順を格納したフロー記憶部と、
前記公転駆動モータを前記公転回転数で所定の公転方向に駆動させるとともに、前記フロー記憶部に格納された前記処理順および前記第2の記憶部に格納された前記第1の自転回転数および前記第2の自転回転数を読み込み、前記処理順に従い前記第1の自転回転数または前記第2の自転回転数で前記自転駆動モータを駆動させる制御部とを
備えたことを特徴とする攪拌・脱泡装置。 - 自転軸を備えた容器ホルダーと、
軸受けを介して前記自転軸が回転可能に接する回転ユニットと
前記回転ユニットに固定された公転軸と
前記公転軸に固定されたローターを有する公転駆動モータと
前記公転軸に固定された水平板部と、
前記容器ホルダーに第4の回転運動伝達手段により連結された自転駆動軸と
前記水平板部に固定されるとともに、前記自転駆動軸に連結されたローターを有する自転駆動モータと、
前記公転回転数、第1の自転回転数および第2の自転回転数並びに第1の自転回転数および第2の自転回転数に関連付けられた回転方向を示す符合を格納する第1の記憶部と、
前記自転駆動モータを前記第1の自転回転数または前記第2の自転回転数で駆動させる処理順を格納したフロー記憶部と、
前記公転駆動モータを所定の公転回転数で、所定の公転方向に駆動させるとともに、前記第2の記憶部に格納された前記処理順および前記第1の記憶部に格納された前記第1の自転回転数および前記第2の自転回転数並びに第1の自転回転数および第2の自転回転数に関連付けられた回転方向を示す符合を読み込み、前記処理順に従い前記第1の自転回転数および前記第2の自転回転数で前記自転駆動モータを駆動させる制御部とを
備えたことを特徴とする攪拌・脱泡装置。
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DE112016004851T5 (de) | 2018-10-25 |
JP2017080645A (ja) | 2017-05-18 |
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