JP2022126198A - Stirring rod, stirring device, and stirring system - Google Patents

Abstract

To provide a stirring device including a stirring rod that can perform stirring in an optimum stirring condition.SOLUTION: A stirring device 100 includes: a stirring rod 10A including a magnet 2 and a temperature sensor H1 for detecting a property of solution to be stirred; a vial 6 for storing solution; and a magnetic stirrer 9 for placing the vial 6 thereon. The stirring rod 10A is oscillated with magnetic force of a magnetic body provided in the magnetic stirrer 9.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a stirring rod and a stirring device and stirring system using the stirring rod.

As a stirrer using a magnet, for example, Patent Document 1 discloses a sensor unit that measures the physical properties of substances such as solutions and particles, and a rotor equipped with a magnetic body, so that the physical properties can be sensed and stirred. A stirring device is disclosed.

Japanese Unexamined Patent Application Publication No. 2011-20024

However, in the agitator disclosed in Patent Document 1, the rotation of the rotor at the bottom of the container may cause the material to be ground, and depending on the material, the agitation may not be optimal. Also, in order to heat or keep the material to be stirred, a hot plate is used to heat the container from the bottom, but depending on the material, the heating is not optimal.

An object of the present invention is to provide a stirring device capable of stirring under optimum stirring conditions.

In order to solve the above problems, the stirring device of the present invention comprises a stirring bar including a magnet and a detecting means for detecting the characteristics of the solution to be stirred, a container containing the solution, and a main body on which the container is placed. and , wherein the stirring rod is oscillated by magnetic force of a magnetic body provided in the main body.

ADVANTAGE OF THE INVENTION According to this invention, the stirring apparatus which can stir on optimal stirring conditions can be provided.

1 is a schematic diagram of a stirring device 100 according to the present invention; FIG. (A) A partial cross-sectional view of a stirring rod 10A of Example 1A. (B) A partial cross-sectional view of a stirring rod 10B of Example 1B. (C) is a partial cross-sectional view of the stirring rod 10C of Example 1C. (A) A partial cross-sectional view of a stirring rod 20A of Example 2A. (B) A partial cross-sectional view of a stirring rod 20B of Example 2B. (A) A partial cross-sectional view of a stirring rod 30A of Example 3A. (B) A partial cross-sectional view of a stirring rod 30B of Example 3B.

(embodiment)
Exemplary embodiments for carrying out the present invention will now be described in detail with reference to the drawings. However, the dimensions, materials, shapes, relative positions of constituent elements, etc. described in the following examples are arbitrary and can be changed according to various conditions. Moreover, unless otherwise specified, the scope of the present invention is not limited to each example specifically described below. In this specification, up and down respectively correspond to upward and downward directions in the direction of gravity.

FIG. 1 is a schematic diagram of a stirring device 100 to which the swinging member (stirring rod) of the present invention can be applied. The stirring device 100 will be described with reference to FIG. The stirring device 100 includes a rocking member (resin tube 1), a support member 5 that supports the rocking member, a vial 6 (container) containing a solution, a lid member 7, a vibration-isolating silicon sheet 8, and a vial 6. It has a magnetic stirrer 9 (main body). The vibration-isolating silicon sheet 8 is placed between the vial 6 and the magnetic stirrer 9 for use.

By moving a magnetic body (not shown) provided in the magnetic stirrer 9, the rocking member is rocked by the magnetic force of the magnetic body. In the stirring device 100, non-sliding stirring by a so-called pendulum system is possible. Contents are not mashed during agitation. Such a stirring device 100 is suitable for applications such as crystallization, molecular elongation, and solid-liquid dispersion.

The rocking member is composed of a fluororesin tube (resin tube 1), and more specifically, a transparent fluororesin heat-shrinkable tube (heat-resistant temperature of 200° C.) is used. A magnet 2 is provided inside one end side of the resin tube 1, and a sealing member 3 made of fluororesin is arranged between the one end side of the resin tube 1 and the magnet 2, and the resin tube 1 is sealed. protected (protected from solution). In other words, all of the liquid-contacting parts of the rocking member are made of fluororesin. Since a heat-resistant samarium-cobalt magnet (heat-resistant temperature: 350° C.) is used for the magnet 2, it is possible to cope with high-temperature and high-pressure conditions in sterilization.

Inside the resin tube 1, in addition to the magnet 2 and the sealing member 3, means 4 (detecting means) for detecting the characteristics of the solution to be stirred or means 4 (promoting means) for promoting changes in the solution to be stirred are provided. A wire 4a connected to the means 4 extends upward in the drawing. The other end opposite to the one end of the resin tube 1 is fixed to a support member 5 , and the support member 5 is placed on the inlet of the vial 6 and fixed together by a lid member 7 . The wiring 4a connected to the means 4 passes through the support member 5 and extends out of the vial 6 through a hole 7a formed in the lid member 7. As shown in FIG. Hereinafter, each embodiment of the swing member of the present invention will be described with reference to FIGS. 2(A) to 4(B).

(Example 1A)
FIG. 2A is a partial cross-sectional view of the swinging member (stirring rod 10A) of Example 1A of the present invention. The stirring rod 10A has a temperature sensor S1, which is detecting means for detecting the temperature of the solution. A thermocouple is illustratively used as the temperature sensor S1, but other sensors can be used. The temperature sensor S1 is provided along the longitudinal direction of the magnet 2 between the magnet 2 and the resin tube 1, and is protected by the resin tube 1 from the solution. One end side of the resin tube 1 is sealed with a sealing member 3 . A wire 4a from the temperature sensor S1 extends inside the resin tube 1, extends outside the vial 6 through a hole 7a in the cover member 7 of the vial 6 (not shown), and is connected to a temperature measuring unit (not shown).

Since the stirring rod 10A of Example 1A is provided with the temperature sensor S1 along the longitudinal direction of the magnet 2, the temperature of the solution in the vial 6 can be detected accurately. Moreover, since the temperature sensor S1 is arranged on the side surface of the magnet 2 in this way, it is possible to manufacture the existing structure relatively easily.

(Example 1B)
Next, Example 1B will be described, but the configuration different from that of Example 1A will be described, and the description of the same configuration will be omitted. FIG. 2(B) is a partial cross-sectional view of a stirring rod 10B of Example 1B of the present invention. The stirring rod 10B has a temperature sensor S2, which is detecting means for detecting the temperature of the solution.

The temperature sensor S2 is composed of a thermocouple covered with an insulator. More specifically, it is formed by filling a cup-shaped container having chemical resistance performance with an insulator and molding the thermocouple, and the thermocouple is protected from the solution by the filled insulator and the cup-shaped container. ing. The temperature sensor S2 is adjacent to the magnet 12 and provided on one end side of the resin tube 1 instead of the sealing member 3 in the embodiment 1A.

The magnet 12 has a through hole 12a extending in the longitudinal direction at the center of the magnet 12 for passing the wiring 4a from the temperature sensor S2. The wiring 4a passes through the through-hole 12a, extends inside the resin tube 1, extends from the hole 7a of the cover member 7 of the vial 6 (not shown) to the outside of the vial 6, and is connected to a temperature measurement unit (not shown). .

The stirring rod 10B of Example 1B is provided with the temperature sensor S2 at the tip of one end side of the stirring rod 10B. The temperature of the solution can be detected accurately. Further, since the temperature sensor S2 is provided instead of the sealing member 3, the size of the stirring rod 10B is approximately the same as that of the existing one.

(Example 1C)
Next, Example 1C will be described, but the configuration different from Examples 1A and 1B will be described, and the description of the same configuration will be omitted. FIG. 2(C) is a partial cross-sectional view of a stirring rod 10C of Example 1C of the present invention. The stirring rod 10C has a temperature sensor S3, which is detecting means for detecting the temperature of the solution. The temperature sensor S3 is covered with an insulator as in Example 1B and protected from the solution.

A temperature sensor S<b>3 is provided on the opposite side of the sealing member 3 adjacent to the magnet 2 . One end side of the resin tube 1 is sealed with a sealing member 3 . A wire 4a from the temperature sensor S3 extends inside the resin tube 1, extends outside the vial 6 through a hole 7a in the cover member 7 of the vial 6 (not shown), and is connected to a temperature measuring unit (not shown).

Since the stirring rod 10C of Example 1C is provided with the temperature sensor S3 on the side opposite to one end of the stirring rod 10C, the temperature of the solution in the upper layer of the vial 6 can be detected accurately. Moreover, since the temperature sensor S3 is arranged above the magnet 2 in this way, it is possible to manufacture the existing structure relatively easily.

As described above, since the temperature sensors S1 to S3 are incorporated in the stirring rods 10A to 10C of Examples 1A to 1C, respectively, there is no need to dispose the sensors separately. In addition, since the stirring rods 10A-10C with built-in temperature sensors S1-S3 stir like a pendulum, there is no risk of crushing the substance during stirring. According to Examples 1A to 1C, since the temperature of the solution can be measured, it is possible to detect the stirring conditions related to the temperature. The temperature can be adjusted with a heating device (not shown). According to the present invention, it is possible to provide the stirring rods 10A to 10C capable of stirring under optimum stirring conditions, and to provide the stirring device 100 equipped with any of such stirring rods 10A to 10C.

(Example 2A)
FIG. 3A is a partial cross-sectional view of a stirring rod 20A of Example 2A of the present invention. The stirring rod 20A is equipped with a heater H1, which is a means for accelerating the change (reaction) of the solution by heating the solution. Although a film heater is illustratively used for heater H1, it is also possible to use other forms of heating elements. A heater H1 is provided between the magnet 2 and the resin tube 1 and is protected from the solution. The heater H1 has a tube-like or sheet-like shape and is arranged so as to partially surround the magnet 2 and the sealing member 3 . One end side of the resin tube 1 is sealed with a sealing member 3 . A wire 4a from the heater H1 extends inside the resin tube 1, extends outside the vial 6 through a hole 7a in the cover member 7 of the vial 6 (not shown), and is connected to a heater control unit (not shown).

Conventionally, a water bath, a hot water bath, or a heat block is used for heating, but since these heat the vial 6 from the outside, the size of the apparatus is increased, and the object to be stirred cannot be directly heated. On the other hand, the stirring rod 20A of Example 2A is provided with a heater H1 over a wide area so as to surround part of the magnet 2 and the sealing member 3, so that the solution in the vial 6 can be efficiently heated. can do. In addition, since the heater H1 is arranged around the magnet 2 and a part of the sealing member 3 in this manner, the existing structure can be manufactured relatively easily. Furthermore, the temperature sensor S2 of Example 1B and the temperature sensor S3 of Example 1C can be combined, and the solution can be heated while measuring the temperature of the solution.

(Example 2B)
Next, Example 2B will be described, but the configuration different from that of Example 2A will be described, and the description of the same configuration will be omitted. FIG. 3B is a partial cross-sectional view of a stirring rod 20B of Example 2B of the present invention. The stirring rod 20B is equipped with a heater H2, which is a means for accelerating the change (reaction) of the solution by heating the solution.

Although a cartridge heater is illustratively used for heater H2, other forms of heating elements may be used. Cartridge heaters are bar-shaped heating elements with heating wires protected by metal pipes. The heater H2 is adjacent to the magnet 22 and provided on one end side of the resin tube 1 instead of the sealing member 3 of the embodiment 2A.

The magnet 22 is formed with a through hole 22a extending in the longitudinal direction at the center of the magnet 22 for passing the wiring 4a from the heater H2. The wiring 4a passes through the through-hole 22a, extends inside the resin tube 1, extends from the hole 7a of the cover member 7 of the vial 6 (not shown) to the outside of the vial 6, and is connected to a temperature measurement unit (not shown). .

Since the stirring rod 20B of Example 2B is provided with the heater H2 at the tip of one end side of the stirring rod 20B, the heater H2 can be completely immersed in the solution, and the solution near the bottom of the vial 6 is Can be heated. Also, since the heater H2 is provided instead of the sealing member 3, the size of the stirring rod 20B is approximately the same as that of the existing one. Furthermore, the temperature sensor S1 of Example 1A or the temperature sensor S3 of Example 1C can be combined with the stirring rod 20B, and the solution can be heated while measuring the temperature of the solution.

As described above, since the stirring rods 20A and 20B of Examples 2A and 2B incorporate the heaters H1 and H2, respectively, there is no need to dispose separate heating elements. Moreover, since the stirring rods 20A and 20B containing the heater H1 and the heater H2 stir like a pendulum, there is no risk of crushing the substance during stirring. According to Examples 2A and 2B, the solution can be heated, so that the stirring rods 20A and 20B that can be stirred under stirring conditions that provide the optimum temperature are provided, and the stirring rods 20A and 20B Agitation device 100 can be provided with either.

(Example 3A)
FIG. 4A is a partial cross-sectional view of a stirring rod 30A of Example 3A of the present invention. The stirring rod 30A is equipped with a light emitter L1 that emits light of a specific wavelength, which is an acceleration means for irradiating the solution and accelerating the change (reaction) of the solution. Although LED lighting is illustratively used for light emitter L1, other forms of light emitting elements can also be used. The light emitter L1 is adjacent to the magnet 32 and provided on one end side of the resin tube 1 instead of the sealing member 3 of the embodiment 1A.

The magnet 32 has a through hole 32a extending in the longitudinal direction at the center of the magnet 32 for passing the wiring 4a from the light emitter L1. The wiring 4a passes through the through-hole 32a, extends inside the resin tube 1, extends from the hole 7a of the cover member 7 of the vial 6 (not shown) to the outside of the vial 6, and is connected to an illumination control unit (not shown). .

Since the stirring rod 30A of Example 3A is provided with the light-emitting body L1 at the tip of one end side of the stirring rod 30A, the light-emitting body L1 can be completely immersed in the solution. Solutions can be irradiated. Also, since the light emitter L1 is provided instead of the sealing member 3, the size of the stirring rod 30A is approximately the same as that of the existing one. By irradiating the solution, for example, photosynthesis can be promoted.

(Example 3B)
Next, Example 3B will be described, but the configuration different from that of Example 3A will be described, and the description of the same configuration will be omitted. FIG. 4B is a partial cross-sectional view of a stirring rod 30B of Example 3B of the present invention. The stirring rod 30B is equipped with a luminous body L2, which is an accelerating means for irradiating the solution and accelerating the change (reaction) of the solution.

The light emitter L2 is provided adjacent to the magnet 2 and on the opposite side of the sealing member 3 . One end side of the resin tube 1 is sealed with a sealing member 3 . The wiring 4a from the light emitter L2 extends inside the resin tube 1, extends to the outside of the vial 6 through a hole 7a in the cover member 7 of the vial 6 (not shown), and is connected to a temperature measurement unit (not shown).

Since the stirring rod 30B of Example 3B is provided with the light emitter L2 on the opposite side of one end of the stirring rod 30B, the solution in the upper layer of the vial 6 can be irradiated. In addition, since the light emitter L2 is arranged above the magnet 2 in this way, the existing structure can be manufactured relatively easily.

As described above, since the stirring rods 30A and 30B of Examples 3A and 3B incorporate the light emitters L1 and L2, respectively, there is no need to arrange lighting elements separately. In addition, since the stirring rods 30A and 30B containing the light emitters L1 and L2 stir like a pendulum, there is no risk of crushing the substances during stirring. According to Examples 3A and 3B, since the solution can be irradiated, it is possible to provide the stirring rods 30A and 30B that can be stirred under the stirring conditions with the optimum illumination intensity, and the stirring rods 30A and 30B Agitation device 100 can be provided with either.

The stirring device 100 of the present invention constitutes a stirring system in which the driving cycle of the magnetic material provided in the magnetic stirrer 9, the driving of the acceleration means, etc. are controlled by a control device (not shown) based on the detection value of the detection means. be able to.

1 resin tube 2, 12, 22, 32 magnet 6 vial (container)
9 Magnetic stirrer (main unit)
10A, 10B, 10C Stirring rods 20A, 20B Stirring rods 30A, 30B Stirring rods 100 Stirring devices H1, H2 Heaters (promoting means)
L1, L2 light emitters (promoting means)
S1, S2, S3 temperature sensor (detection means)

Claims (12)

A stirring bar, characterized in that it comprises a magnet and sensing means for sensing properties of the solution to be stirred. 2. The stir bar according to claim 1, wherein said sensing means is a temperature sensor. 2. The stirring rod is composed of a resin tube, and the magnet and the detection means are provided adjacent to each other in the longitudinal direction of the stirring rod in the resin tube. Or the stirring bar according to 2. 3. The apparatus according to claim 1, wherein said stirring bar is composed of a resin tube, and said detection means is provided between said magnet and said resin tube in said resin tube. stir bar. 5. A stirrer bar according to any one of claims 1 to 4, further comprising at least one facilitating means for facilitating reaction of the solution being stirred. A stirring bar, characterized in that it comprises a magnet and a facilitating means for facilitating the reaction of the solution to be stirred. 7. A stirrer bar according to claim 5 or 6, characterized in that said facilitating means is a heater. 7. A stirring rod according to claim 5 or 6, characterized in that said facilitating means is a luminous body that emits light of a specific wavelength. A fifth aspect of the present invention is characterized in that the stirring rod comprises a resin tube, and the magnet and the acceleration means are provided in the resin tube adjacent to each other in the longitudinal direction of the stirring rod. 9. The stirring bar according to any one of items 1 to 8. 9. The method according to any one of claims 5 to 8, wherein said stirring bar is composed of a resin tube, and said accelerating means is provided in said resin tube between said magnet and said resin tube. or the stirring rod according to item 1. A stirring rod according to any one of claims 1 to 10;
a container containing the solution;
and a main body on which the container is placed,
A stirring device that swings the stirring rod by the magnetic force of a magnetic body provided in the main body. A stirring system for controlling the stirring device of claim 11 .

Images