JPH07289873A - Agitation and defoaming device for solvent or the like - Google Patents

Abstract

PURPOSE:To provide an agitation and defoaming device for solvent or the like enabling to enhance working efficiency by defoaming air bubbles mixed in a solvent in a short time and stirring, and also stirring and defoaming various concentrations of solvents. CONSTITUTION:This device is composed of an arm body 1 freely rotatably provided on a fixing shaft 3, a container 6... for housing a solvent, etc., which is provided freely rotatably on the arm body 1, and a driving source for rotation-driving the arm body 1, and also a rotation means provided on the driving source for allowing the container 6... to revolve when the arm body 1 is rotation-driven.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for stirring and defoaming a solvent, and more specifically, a solvent used for stirring and defoaming a solvent such as a barium contrast agent used in radiography. Of the stirring and defoaming device.

[0002]

2. Description of the Related Art Conventionally, a device for stirring and defoaming a solvent or the like comprises a vacuum pump arranged in a container and a rotary blade having a plurality of blades provided in the container. After making the container in a vacuum state, a solvent such as barium contrast agent is filled and stirred with a rotary blade to simultaneously perform stirring and defoaming, and a stirring shaft is attached to a rotary shaft of a motor,
The stirring blade is used by stirring the blade for stirring in a solvent filled in a container.

Further, in the case of a highly viscous liquid having a viscosity of 100,000 CP (centipoise) or more, the solvent to be agitated or the like cannot sufficiently agitate and defoam the highly viscous liquid with the above-mentioned device. It is used to stir and defoam a highly viscous liquid by artificially rotating it with a member such as a rod.

[0004]

However, in the above-mentioned apparatus using the vacuum pump, the agitation of the corners and the like in the container is insufficient and bubbles remain in the solvent,
It takes a lot of time to evacuate the inside of the container before stirring work, and also when using blades for stirring, similarly, diffusion at the corners and the like in the container is insufficient and sticking When a member is used, the work of stirring and defoaming is more complicated. That is, when the above-mentioned conventional vacuum pump or the like is used, there is a problem that the stirring and defoaming treatment work cannot be performed reliably, and the work process is complicated and the work efficiency is poor.

In addition, when a conventional vacuum pump or the like is used, the stirring speed is set to a constant value. Therefore, for solvents having different concentrations and viscosities, various devices having different stirring speeds are used. Therefore, it is costly, and it is difficult to prepare a vacuum pump or the like having an appropriate speed suitable for the concentration of the solvent.

Further, conventionally, there is a drawback that the remaining solvent must be discarded because a large amount of the solvent is stirred and defoamed at once in the container.

The present invention has been invented in view of the above problems. By defoaming and stirring the bubbles mixed in the solvent in a short time, and by stirring and defoaming the solvent of various concentrations,
An object of the present invention is to provide a stirring and defoaming device for a solvent or the like that can improve work efficiency.

[0008]

In order to solve the above problems, the present invention provides an arm body 1 rotatably provided on a fixed shaft 3 and a solvent etc. rotatably provided on the arm body 1. It is composed of a container 6 for accommodating and a drive source for rotationally driving the arm body 1. Further, the drive source is a rotation for rotating the container 6 when the arm body 1 is rotationally driven. Means are provided.

Further, the rotation means is provided with a controller for adjusting the rotation amount stepwise.

[0010]

That is, when the solvent agitating / defoaming apparatus of the present invention is used, first, the solvent is stored in the container 6 provided in the arm body 1, and then the drive source 11 is operated to operate the arm body. By driving 1 to rotate, the solvent and the like contained in the containers 6 are degassed. At this time, since the drive source 11 is provided with a rotation means, when the arm body 1 is rotationally driven, the containers 6 ... It can be performed.

Further, since the rotation speed can be adjusted stepwise by providing a controller in the rotation means, stirring is performed at the same time as the defoaming of the solvent etc. depending on the kind, amount, specific gravity, viscosity, etc. of the solvent. It can be performed.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the stirring / defoaming apparatus of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes an arm body having a substantially Y-shaped cross section which is rotatably fitted into a fixed shaft 3 fixed to a base 2 via bearings 4, and both ends of an upper portion of the arm body 1 are provided. On the side, a pair of upper open type storage bodies 6a, 6a fixed to a support shaft 5 rotatably supported by the arm body 1 are provided, and the storage bodies 6a, 6a store a solvent. Containers 6 and 6 for storing are stored. Reference numerals 6b and 6b denote lids for closing the openings of the container 6 and the storage bodies 6a, 6a.

Reference numeral 7 denotes a revolving gear fixed to a lower end portion of the arm body 1 on the fixed shaft 3 side. Reference numerals 8 and 8 denote a pair of driving pulleys fitted over the arm body 1 via bearings 9 above the revolving gear 7, and a gear 10 is provided on the lower end side of the driving pulleys 8 and 8. It is fixed integrally.

Reference numeral 11 denotes a drive gear which is screwed to the revolution gear 7 and is connected to a drive motor (not shown). The drive gear 11 is opposed to the drive gear 11 about the fixed shaft 3 by 180 degrees. A rotation gear 12 screwed to the gear 10 is continuously provided at the position.

Numeral 13 is a control powder brake connected to the rotation gear 12, and by increasing the voltage applied to the powder brake 13, the rotation speed of the rotation gear 12 is gradually reduced to be used for the revolution. The arm body 1 fixed to the gear 7
The rotation speed of the rotation gear 12 is decreased, and the rotation speed of the rotation gear 12 is increased stepwise by decreasing the voltage of the powder brake 13 to increase the rotation speed of the arm body 1. The rotation speed of the rotation gear 12 is configured to be increased stepwise with respect to the rotation speed.

Reference numerals 14 and 14 denote rotation pulleys respectively fitted onto the fixed support shafts 5 and 5 of the containers 6 and 6, respectively. The rotation pulleys 14 and 14 and the drive pulleys 8 and 8 are attached to the rotation pulleys 14 and 14, respectively. The belt body 15 is erected.

Reference numeral 16 denotes a revolution sensor provided on the outer periphery of the drive motor 11 for detecting the rotation amount of the arm body 1, and 17 is provided on the outer periphery of the powder brake 13.
Reference numeral 18 denotes a rotation sensor that detects the amount of rotation of the rotation gear 12, and reference numeral 18 denotes a vibration sensor that is provided on the base 2 and that detects vibration when the arm body 1 or the like is operating.

The stirring and defoaming device 19 is constructed as described above, and the case where the device 19 is used to stir and defoam the solvent will be described below.

First, the voltage applied to the powder brake 13 is set to 0 to set the rotation gear 12 in a free state, and then the mixed solvent for processing is contained in the containers 6 and 6 provided in the arm body 1, and then the The containers 6 and 6 are stored in the storage bodies 6a and 6a, the openings are closed by the lids 6b and 6b, the rotation motor is operated, and the drive gear 11 is rotated. At this time, since the rotation gear 12 is in a free state, the gear 10 rotates in accordance with the arm body 1 while rotating the rotation gear 12, so that a drive provided integrally with the rotation gear 12 is provided. The pulleys 8 and 8 for rotation also rotate according to the arm body 1, and the belt body 15 laid between the driving pulleys 8 and 8 and the rotation pulleys 14 and 14 cannot be rotationally driven, and the container 6 ，
6 does not rotate but only the arm body 1 rotates.

Therefore, the solvent in the containers 6 and 6 moves while the solvent having a large specific gravity is pushed to the outside of the inner peripheral surface of the containers 6 and 6 by the centrifugal force due to the rotation of the arm body 1, and the solvent is also moved. The bubbles mixed therein are extruded inward of the container, so that the solvent can be degassed.

Next, when stirring and defoaming are simultaneously performed, a voltage is applied to the powder brake 13 to limit the rotation speed of the rotation gear 12 so that the rotation gear is compared with the rotation speed of the arm body 1. The number of rotations of the gear 10 screwed to the 10 is reduced. As a result, the number of rotations of the drive pulleys 8, 8 integrally provided on the gear 10 is reduced, and the number of rotations reduced as compared with the number of rotations of the arm body 1 is used for rotation via the belt body 15. It is transmitted to the pulleys 14 and 14 to rotate the containers 6 and 6 by themselves.

Therefore, the solvent in the containers 6 and 6 is degassed by the rotation of the arm body 1 and the containers 6 and 6 are removed.
The rotation of the solvent causes the solvent to move in a spiral shape so that the solvent can be stirred. Moreover, since the number of rotations of the containers 6 and 6 can be adjusted in a stepwise manner by the amount of voltage applied to the powder brake 13, the stirring and defoaming can be appropriately performed according to the properties and viscosity of the solvent to be stored. It is possible.

In the above embodiment, the powder brake is used as a controller for adjusting the number of rotations of the container stepwise, but the controller of the present invention is not limited to this, and for example, as shown in FIG. As shown in FIG. 2, a gear body 20 screwed into the gear 10, a rotary shaft 21 through which the gear body 20 is inserted and which is provided with a brake and a clutch gear, and a transmission pulley connected to the rotary shaft 21. 22 and a rotation motor 24 connected to the transmission pulley 22 via a belt body 23, the gear body 20 is rotated in a free state by turning off the clutch and the brake. Rotate the containers 6 and 6 to 0 revolutions, and turn the brake off and the clutch on to control the rotation amount of the rotation motor 24.
Since the gear 10 is transmitted to the gear body 20 via the gear body 10 and can rotate the gear body 10 in the direction opposite to the rotation direction of the arm body 1, the number of rotations of the container 6 can be increased with respect to the number of rotations of the arm body 1. it can. Therefore, for example, when stirring and defoaming the barium contrast agent, first, the arm 1 is rotated at 250 rpm.
Rotation of containers 6 and 6 800 times for 3 minutes, then rotation of arm 1 1000 times per minute, rotation of containers 6 and 800 800 times 3 times
Rotation of the arm body 1 1000 times per minute for 6 minutes
Rotation of 0 is set to 0 minutes in advance for 3 minutes, then the barium contrast agent is stored in the containers 6 and 6, and the stirring and defoaming are performed according to the settings of the revolution and the rotation, so that the barium can be surely rotated. The contrast agent can be stirred and defoamed.

Moreover, since the number of rotations and the number of rotations of the arm 1 and the container 6 can be freely set, stirring and defoaming can be performed corresponding to various solvents having different specific gravities. Becomes

In the above embodiment, the arm body 1 is provided with the pair of containers 6 and 6. However, the number of the containers 6 and 6 of the present invention is not limited to this. It is also possible to provide four containers 6 ... By forming 1 in a substantially cross shape in a front view.

Further, in the above embodiment, the container 6 and the container 6a of the container 6 are constructed separately, but it is also possible to integrally form the container 6 and the container 6a.

[0028]

As described above, the apparatus for stirring and defoaming a solvent or the like according to the present invention comprises an arm body rotatably provided on a fixed shaft,
A conventional vacuum pump is used by being composed of a container provided on the arm body, a drive source for rotationally driving the arm body, and a rotation means for rotating the container provided on the drive source. As in the case of using the device or a member such as a rod, the working efficiency is remarkably improved without the bubbles remaining in the solvent due to insufficient stirring at the corners of the container, etc. There is an effect that it can be improved.

Moreover, since the number of rotations of the container can be changed stepwise by the controller, it is not necessary to prepare containers having various different rotation speeds according to the solvent as in the conventional case, and various kinds can be obtained by one apparatus. The solvent can be stirred and defoamed, and there is an advantage that the cost can be reduced.

Further, the required amount of solvent can be stored in the container, and the solvent can be stirred and defoamed in a short time, which is the same as in the conventional case. It is economical because only a predetermined amount of solvent can be stirred and defoamed, and it is advantageous in that the solvent can be stirred and defoamed hygienically.

Further, by configuring the controller as a controller for reducing the number of rotations of the container stepwise with respect to the number of rotations of the arm body, it is possible to simply configure it with one drive source. There is an advantage that the controller can be easily configured with a small number of parts.

Further, the controller is composed of an increasing controller for stepwise increasing the rotation number of the container with respect to the rotation number of the arm body, so that the specific gravity of the solvent is high and the viscosity of the solvent is 10%.
Even in the case of 10,000 cp or more, there is an advantage that the container can be easily stirred because the rotation amount of the container is larger than the rotation amount of the arm body.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a stirring / defoaming apparatus of the present invention.

FIG. 2 is a sectional view showing another embodiment of the controller.

[Explanation of symbols]

 1 ... Arm body 3 ... Fixed shaft 6 ... Container 11 ... Drive source 13 ... Decrease controller 24 ... Increase controller

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshio Kumondai 12 K.S. Co., Ltd., a 12-share company at 8 Nishi-Otemachi, Yamashina-ku, Kyoto

Claims (4)

[Claims] 1. An arm body (1) rotatably provided on a fixed shaft (3), and a container (6) ... rotatably provided on the arm body (1) for accommodating a solvent or the like. , A drive source for rotationally driving the arm body (1), and the drive source includes
A stirring / defoaming device for a solvent or the like, characterized in that a rotation means is provided for rotating the container (6) when the arm body (1) is rotationally driven. 2. The stirring / defoaming device for a solvent or the like according to claim 1, wherein the rotation means is provided with a controller for adjusting the rotation number stepwise. 3. The solvent according to claim 2, wherein the controller is a stepwise controller (13) for gradually increasing or decreasing the rotation speed of the container within the rotation speed range of the arm body (1). Stirring / defoaming device. 4. The stirring / defoaming of solvent etc. according to claim 2, wherein the controller is an increasing controller (24) for increasing the number of rotations of the container with respect to the number of rotations of the arm body (1). apparatus.