JPH08257387A - Stirring device, stirring container and stirrer - Google Patents

Abstract

PURPOSE: To efficiently rotate a stirrer within a stirring container by providing a means connecting the stirrer to the central part of the bottom part of the stirring container in a freely rotatable manner. CONSTITUTION: At first, a stirrer 300 is connected to the protruding part (connection means) 40 of the bottom part of the main body part of a stirring container 200 in a freely rotatable manner. Next, a fluid is put in the main body part 1 of the stirring container 200 and the main body part is fitted in a lid member 3 while filter paper 2 is held between the lid member 3 and the main body part 1. The stirring container 300 is arranged so that the recessed part thereof is fitted to the protruding part 104 on the container placing surface of a rotary magnetic field generator 100 and a rotary magnetic field is generated above the container placing surface 103. By this constitution, the stirrer 300 is rotated and the fluid in the container is stirred. At this time, the inside protruding part 104 becomes resistance and acts so as to prevent the rotation of the fluid itself at this part and, therefore, stirring efficiency can be enhanced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stirrer for stirring a fluid injected into a container, and more particularly to stirring a fluid in the container by rotating a stirrer in the container by a rotating magnetic field. The present invention relates to a structure of a stirring device, a stirring container, and a stirring bar suitable for the above.

[0002]

2. Description of the Related Art Conventionally, as a device for indirectly stirring a fluid injected into a container, there is a stirring device called a magnetic stirrer. This agitator is shown in FIG.
As shown in FIG.
A rotating magnetic field generator 100 for generating a rotating magnetic field by rotating the rotating magnetic field, a stirring container 200 placed on the upper surface of the rotating magnetic field generator 100, and a stirrer 300 placed in the fluid of the stirring container 200. It consists of and. Since the stirrer 300 is composed of a magnet, the stirrer 3 is generated according to the rotating magnetic field generated on the upper surface of the rotating magnetic field generator 100.
00 rotates, and fluid agitation can be performed.

[0003]

However, even when the stirring container 200 is placed on the upper surface of the rotating magnetic field generator 100 so that the center of the rotating magnetic field and the center of the stirring container 200 coincide with each other, the fluid Stirrer 3 put in
Since the center of 00 and the center of the rotating magnetic field do not coincide with each other, the stirrer 300 may not be efficiently rotated. In particular, when the fluid in the agitating container 200 has a high viscosity like paint, the tendency is strong, and in the case of paint, it is colored in a cloudy color, so whether it rotates efficiently. Was difficult to judge from the outside.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a stirrer, a stirrer container, and a stirrer structure for efficiently rotating a stirrer in a stirring container.

[0005]

In order to achieve the above object, a first aspect of the present invention is to provide a rotating magnetic field generator, a stirring container mounted on the upper surface of the rotating magnetic field generator, and a stirring container disposed in the stirring container. A stirrer having a stirrer according to claim 1, characterized in that a connecting means for rotatably connecting the stirrer is provided at the center of the bottom of the stirring container.

According to a second aspect of the invention, in the agitating device according to the first aspect, the connecting means includes a convex portion formed on the bottom of the stirring container and a hole portion formed on the stirrer into which the convex portion can be inserted. It is characterized by being configured.

According to a third aspect of the present invention, in the agitating device according to the first aspect, a fitting means for detachably fitting the agitating container is provided on the upper surface of the rotating magnetic field generator.

According to a fourth aspect of the invention, in the agitating device according to the third aspect, the fitting means comprises a convex portion formed on the upper surface of the rotating magnetic field generator and a concave portion formed on the stirring container. I am trying.

According to a fifth aspect of the invention, in the stirrer according to the third aspect, the fitting means is provided with two or more recesses formed so as to face each other around the stirring container, and the fitting means is rotated so as to correspond to the recesses. It is characterized in that it is composed of a convex portion formed on the upper surface of the magnetic field generator.

According to a sixth aspect of the present invention, there is provided a stirring container having a container body having an opening on one side, into which a fluid can be injected, and a lid for closing the opening side with a filter paper interposed therebetween. including. A convex portion for rotatably connecting the stirring bar is formed at the center of the bottom of the container body. 2 at least facing each other on the bottom side of the peripheral surface of the container body
Recesses are formed at the locations.

According to a seventh aspect of the present invention, in the stirring container according to the sixth aspect, a wall is provided upright on the side opposite to the container body of the lid, the wall is provided with a spout, and the lid is provided. It is characterized in that an opening is provided to allow the fluid to flow out from the pouring port.

An eighth aspect of the present invention is an agitator formed in a rod-like body, having a through hole in the center.

[0013]

According to the stirrer of the first and second aspects, by providing the connecting means, the stirrer can be arranged at the center of the bottom portion of the stirring container.

According to the stirrer of the third, fourth and fifth aspects, the stirrer is provided so that the center of the rotating magnetic field and the center of the stirrer are surely aligned with each other. The stirring container can be placed on the upper surface of the rotating magnetic field generator, and the stirring container is prevented from moving due to the rotation of the stirrer so that the center of the rotating magnetic field is displaced from the center of the stirring container.

According to the stirring container of the sixth aspect, since the convex portion is provided at the center of the bottom portion, the stirring bar can be rotatably connected. Further, by forming recesses at least at two locations on the bottom side of the peripheral surface facing each other, it is possible to fit the top surface of the rotating magnetic field generator.

According to the agitating container of the seventh aspect, since the spout and the opening are provided, the fluid can be moved to another place after stirring the fluid as it is. At that time, on the side of the lid opposite to the main body of the container, there is a wall standing upright along the periphery of the lid, so that the fluid can be smoothly discharged from the spout, and even when the outflow is stopped, the paint remaining in the spout is removed. It can be done without spilling outside.

According to the stirrer of the eighth aspect, by having the through hole in the center, the stirrer can be rotatably connected to the center of the bottom of the stirring container.

[0018]

EXAMPLE An example of the stirring device according to the present invention,
This will be described with reference to the drawings. As shown in FIG. 1, the stirring device includes a rotating magnetic field generator 100, a stirring container 200 placed on the upper surface of the rotating magnetic field generator 100, and a stirrer 300 arranged in the stirring container 200. It consists of The rotating magnetic field generator 100 has a container mounting surface 103 formed on the upper surface thereof, and a drive magnet (not shown) rotated by a motor is disposed below the container mounting surface 103 as described in the conventional example. By rotating the magnet, a rotating magnetic field is generated near the upper part of the container mounting surface 103.

Around the lower surface of the main body 1 of the agitating container 200, recesses 13 are formed at four equal intervals (at intervals of 90 degrees with respect to the center of the container), and the container mounting surface 103 of the rotating magnetic field generator 100 is formed. Above the stirring container 20 is located at the center of the rotating magnetic field.
When the centers of 0 are aligned, the convex portions 104 that fit into the respective concave portions 13 are formed, so that the container mounting surface 10
The stirring container 200 is configured to be removably fitted into the container 3. In this embodiment, a convex portion 104 is formed by screwing a member having a cylindrical head onto the container mounting surface 103, and a half-circular shape in which half of the cylindrical convex portion is fitted to the stirring container 200 side. A recess 13 is formed. Further, in the embodiment, the convex portion 104 and the concave portion 13 are formed at four places, but it may be two places or three places.

It is also possible to provide a concave portion on the container mounting surface 103 side and a convex portion on the stirring container 200 side. Further, by devising the shapes of the convex portion 104 and the concave portion 13 (for example, a cross shape, a star shape, etc.), a concave portion is formed at one position in the central portion of the bottom surface of the main body portion, and the corresponding container mounting surface 103 is positioned. It is sufficient that the stirring container 200 can be fitted to the container mounting surface 103 of the rotating magnetic field generator 100 without being displaced, such as a structure in which a convex portion is provided.

The stirrer 300 is formed of a rod-shaped magnet, and has a through hole 301 in the center. Stirrer 30
The entire surface of No. 0 is covered with chemical resistant plastic or the like. Then, a connecting means 4 for rotatably connecting the stirring bar 300 to the center of the bottom surface of the main body 1 of the stirring container 200.
0 is provided.

Next, the detailed structure of the stirring container 200 will be described. As shown in FIG. 3, the stirring container 200 includes a main body 1 having an opening 11 at one end and a hollow interior.
And a lid 2 that closes the opening 11 side with the filter paper 2 interposed therebetween. FIG. 3 shows the main body 1, the filter paper 2, the lid 3
FIG. 1 is a perspective explanatory view of each, and FIG. 1 is a perspective explanatory view when these are integrated and placed on a rotating magnetic field generator 100.

The main body 1 is formed of a semitransparent synthetic resin member so that the fluid contained therein can be seen from the outside. The peripheral edge of the main body 1 on the side of the opening 11 is shown in FIGS.
As shown in, the annular thick portion 12 is formed in consideration of fitting the lid portion 3 (details will be described later). Further, the size of the main body 1 is such that it can be held with one hand and sufficient paint can be poured into the paint container of the spray gun.

A connecting means 40 is formed by integrally providing a convex portion at the center of the bottom of the stirring container 200. The connecting means (convex portion) 40 has a pedestal portion 41, a cylindrical portion 42 hung on the pedestal 41, and a diameter slightly larger than the diameter of the through hole 301 of the stirrer 300 provided at the tip of the cylindrical portion 42. And a spherical portion 43 having the same.
Slits 44 are formed in the spherical portion 43 and the columnar portion 42. Therefore, when the stirrer 300 is connected to the convex portion, when the stirrer 300 is pushed into the spherical portion 43, the spherical portion 43 is deformed and the slit interval L is narrowed, and the through hole 301 of the stirrer 300 passes through the spherical portion 43 and the cylinder. The part 42 is rotatably fitted. In this state, the slit interval L of the spherical portion 43 has returned to the original value, so that the stirring bar 300 does not come off from the convex portion.

Around the lower surface of the main body 1 of the agitating container 200, there are four equal intervals (90 ° apart from the center of the container).
In the above, as described above, the semicircular concave portion 13 into which the convex portion 104 formed on the container mounting surface 103 is fitted is formed. The semicircular recess 13 is formed on the inner surface of the main body 1 so as to serve as the inner projection 14. Therefore, when a fluid (paint or the like) is stirred in the main body 1, the fluid itself may rotate together with the rotation of the stirrer 300 when the viscosity of the fluid is high. Since the portion 14 serves as a resistance and acts so that the fluid does not rotate in this portion, the efficiency of stirring can be improved. Further, the filter paper 2 is formed of a non-woven fabric and is not easily broken, and is formed in a shape (square or circular) having a larger area than the opening 11 side of the main body 1.

Next, the structure of the lid 3 will be described with reference to FIGS. The lid 3 has an opening 11 in the main body 1.
It has a lid portion 30 that closes the side, an upper wall surface 31 formed on the peripheral upper surface side of the lid portion 30, and a lower wall surface 32 formed on the peripheral lower surface side of the lid portion 30, and these are synthetic resin members. Are formed integrally. Upper wall surface 31 and lower wall surface 32
The outer peripheral surface of is formed so that each wall surface is continuous.
A pouring spout 33 is formed at an appropriate portion of the upper wall surface 31 so that a part of the upper wall surface 31 is projected to the outside to form a triangular tip portion. The inner surface side of the spout 33 has a shape that is continuous with the inner surface of the upper wall surface 31 with a gentle surface.

On the lower wall surface 32, at a position just below the lid portion 30, the annular groove portion 3 into which the annular thick portion 12 of the main body portion 1 is fitted.
4 are formed. By fitting the annular thick portion 12 and the annular groove portion 34, the lid body 3 does not shift obliquely with respect to the main body portion 1, and the main body portion 1 and the lid body 3 are reliably integrated. be able to. Further, as shown in FIG. 6, the depth of the annular groove portion 34 is such that the inner surface 1a of the body portion 1 and the inner surface 31a of the upper wall surface 31 when the body portion 1 is fitted.
And are set to continue without any step.

The lid 30 is formed with a semicircular opening 35 having an area about half that of the lid 30. The opening 35 is formed so as to be in contact with the spout 33 and plays a role of causing the paint in the main body 1 to flow out from the spout 33 to the outside. In the embodiment, the opening 35 has a semicircular shape, but may have an opening area and shape (for example, a fan-shaped opening) that allows the coating material to sufficiently flow out through the spout 33. In addition, the lid portion 30 is provided when the main body portion 1 is fitted to the lid body 3,
The upper end of the annular thick portion 12 of the main body 1 abuts against the back surface of the lid portion 30, and also plays a role of locking the main body 1 at an appropriate position where the annular thick portion 12 can be fitted into the annular groove 34.

An example of using the stirring device of the above embodiment will be described. First, the stirring bar 300 is rotatably connected to the convex portion 40 on the bottom of the main body 1 of the stirring container 200. next,
A fluid (not shown) such as paint is put in the main body 1 of the agitation container 200, the filter paper 2 is covered on the main body 1, and the main body 1 is inserted while the filter paper 2 is sandwiched between the lid 3 and the main body 1. The annular thick-walled portion 12 is fitted into the annular groove 34 of the lid body 3 to fix them at a predetermined position. At this time, the filter paper 2 is attached to the main body 1
It is securely sandwiched between the lower wall surface 32 of the lid 3 and the lid 3,
The filter paper 2 is fixed to the opening portion 35 in a state where the periphery is pulled.

The concave portion 13 of the stirring container 200 is arranged so as to be fitted into the convex portion 104 on the container mounting surface 103 of the rotating magnetic field generator 100. In this state, the center position of the rotating magnetic field coincides with the center of the stirring container (this state is FIG. 1). A switch (not shown) of the rotating magnetic field generator 100 is turned on to generate a rotating magnetic field above the container mounting surface 103.
The rotating magnetic field rotates the stirrer 300 to stir the fluid in the container. At this time, the center of the stirring bar 300 and the center of rotation of the rotating magnetic field coincide with each other, so that the stirring bar 300 can be efficiently rotated. Further, the inner convex portion 14 serves as a resistance and acts so that the fluid itself does not rotate in this portion, so that the stirring efficiency can be improved. Further, since the stirring container 200 is fitted and fixed to the container mounting surface 103 of the rotating magnetic field generator 100, the stirring container 200 does not move due to the vibration caused by the rotation of the stirrer 300, and the center of the rotating magnetic field is not changed. It is possible to prevent the center of the stirring container 200 from being displaced.

Then, the switch (not shown) of the rotating magnetic field generator 100 is turned off, and the main body 1 is held with one hand in the state shown in FIG. Since the impurities are removed by and the liquid flows out from the pouring port 33 along the upper wall surface 31 of the opening 35, the fluid immediately after stirring can be transferred to another container as it is. At this time, the stirrer 300 is connected so as not to come off from the equal part 40 on the bottom surface of the stirring container 200, so that the stirrer 200 may move in the stirring container and become a hindrance when being poured into another container. There is nothing.

Further, as shown in FIG. 7, the main body 1 and the lid 3 are fitted so that the inner surface 1a of the main body 1 and the inner surface 31a of the upper wall surface 31 of the lid 3 are continuous without a step. Therefore, the paint in the main body 1 is smoothly guided to the upper wall surface 31,
Can be leaked to the outside. When the injection is stopped, the main body 1 may be returned to the vertical position. On this occasion,
Since the lid 3 is provided with the upper wall surface 31, the paint remaining in the spout 33 can be smoothly returned to the main body 1 and the paint can be prevented from spilling to the outside.

[0033]

According to the stirrer of the present invention, by providing the connecting means, the stirrer can be arranged at the center of the bottom of the stirrer, so that the position of the stirrer relative to the stirrer can be fixed. Can be

Further, by providing the fitting means, the center of the rotating magnetic field and the center of the stirring container can be surely aligned with each other. Further, the stirring container is prevented from moving due to the rotation of the stirrer, and the center of the rotating magnetic field and the center of the stirring container are prevented from deviating from each other.

Further, since the stirring container is provided with the spout and the opening, after stirring the fluid, the fluid can be moved to another place as it is. At that time, on the side of the lid opposite to the main body of the container, there is a wall standing upright along the periphery of the lid, so that the fluid can be smoothly discharged from the spout, and even when the outflow is stopped, the paint remaining in the spout is removed. It can be done without spilling outside.

[Brief description of drawings]

FIG. 1 is a perspective explanatory view showing an embodiment of a stirring device of the present invention.

FIG. 2 is a perspective explanatory view showing a structure of a stirring bar.

FIG. 3 is a perspective view illustrating components of a stirring container.

FIG. 4 is a cross-sectional explanatory view of a main body of a stirring container.

FIG. 5 is an explanatory plan view of the lid of the stirring container.

6 is a cross-sectional explanatory view taken along the line XX ′ of FIG.

FIG. 7 is a cross-sectional explanatory view showing a fitted state of the main body of the stirring container and the lid.

FIG. 8 is a structural explanatory view showing the operating principle of the magnetic stirrer.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Main body part, 2 ... Filter paper, 3 ... Lid part, 11 ... Opening, 12 ... Annular thick part, 13 ... Recessed part, 14 ... Inner convex part, 30 ... Lid part, 31 ... Upper wall surface, 32 ... Lower wall surface , 33 ... Pouring port, 34 ... Annular groove part, 35 ... Opening part, 40 ... Coupling means (convex part), 42 ... Cylindrical part,
43 ... Spherical part, 100 ... Rotating magnetic field generator, 103 ...
Container mounting surface, 104 ... convex portion, 200 ... stirring container,
300 ... Stirrer, 301 ... Through hole (hole)

Claims (8)

[Claims] 1. A stirrer having a rotating magnetic field generator, a stirring container mounted on the upper surface of the rotating magnetic field generator, and a stirrer disposed in the stirring container, wherein A stirrer comprising a connecting means for rotatably connecting the stirrer at the center of the bottom of the container. 2. The stirrer according to claim 1, wherein the connecting means comprises a protrusion formed on the bottom of the stirring container and a hole formed on the stirrer into which the protrusion can be inserted. 3. The stirring device according to claim 1, wherein a fitting means for detachably fitting the stirring container is provided on the upper surface of the rotating magnetic field generator. 4. The stirring device according to claim 3, wherein the fitting means comprises a convex portion formed on the upper surface of the rotating magnetic field generator and a concave portion formed on the stirring container. 5. The fitting means comprises two or more recesses formed so as to face each other around the stirring container, and a projection formed on the upper surface of the rotating magnetic field generator so as to correspond to the recesses. The stirrer according to claim 3, which is configured. 6. A stirring container having a container body which is opened on one side and is capable of injecting a fluid into the inside, and a lid body which closes the opening side with a filter paper sandwiched between the container body and the center of the bottom of the container body. A container for stirring, characterized in that a convex portion for rotatably connecting the stirrer is formed on the container, and a concave portion is formed at least at two positions facing each other on the bottom side of the peripheral surface of the container body. 7. A wall is provided upright along the periphery of the lid body on the side opposite to the container body, a spout is provided in the wall, and an opening for allowing a fluid to flow out from the spout is provided in the lid. The stirring container according to claim 6. 8. A stirrer formed into a rod-like body and having a through hole in the center.