JP5458251B2 - Weighing and stirring system - Google Patents

Description

  The present invention relates to a weighing and stirring system in which a container is arranged on an upper plate of an upper plate weighing device, and the weight of the container and the loaded material is measured by the upper plate weighing device while stirring the held material in the container. .

  Conventionally, when stirring is performed in a state where the container is placed on the upper pan of the upper pan weighing instrument, a stirrer equipped with a stirring blade at the tip of the shaft extending from the rotational drive source is installed in the container from the upper opening of the container. (See, for example, Patent Documents 1 and 2).

JP 2008-188561 A (paragraph [0002], FIG. 1) JP 2007-330847 A (paragraphs [0019] to [0021], FIG. 1)

  However, in the conventional configuration described above, since the rotational drive source of the agitator is disposed above the container, it is difficult to dispose other devices above the container, and the degree of freedom of the space above the container is low.

  The present invention has been made in view of the above circumstances, and it is possible to improve the degree of freedom of the space above the container when stirring is performed in a state where the container is placed on the upper plate of the upper plate weighing device. The purpose is to provide a simple weighing and stirring system.

In order to achieve the above object, a measuring and stirring system according to the invention of claim 1 is arranged such that a container is arranged on an upper plate of an upper plate measuring instrument, and liquid, powder and other items stored in the container. A weighing and stirring system that measures the weight of the container and the contents with an upper plate weighing device while stirring the table, and is provided on the table type container table placed on the upper plate and the table type container table. A table ceiling part that faces the plate from above and on which the container is placed, and a table-type container stand that hangs from the table ceiling part and abuts against the upper plate to cover the table ceiling part And the load of the stored item to the upper plate, the table leg portion forming the lower space of the container between the table ceiling and the upper plate, and the lower space of the container, the magnetic flux is applied toward the container, and Magnetism that can change the magnetic flux A change giving unit, with submerged on the bottom surface of the vessel, in which is magnetically coupled to the magnetic flux variation inducing portion and a stirring member that operates to stir the contained object according to the change in magnetic flux, the magnetic flux change The imparting unit includes a motor provided with an output shaft protruding upward toward the container, and a rotating magnet connected to the output shaft and rotating about a rotating shaft facing the vertical direction, and the weight of the motor is reduced. A motor holding portion for holding the motor so as not to be transmitted to the upper plate, and a linear motion allowable connecting mechanism portion for connecting the rotary magnet to the motor output shaft so that the rotary magnet can be moved up and down and relatively non-rotatable. Is characterized in that it is held in a vertically movable state together with the table ceiling by magnetic coupling with the stirring member .

According to a second aspect of the invention, the metering stirring system according to claim 1, and an upper leg and a lower leg portion formed by 2 divides the table leg in the vertical direction of the intermediate, an inner space isolated from the outside A sealed case that accommodates the container, the table ceiling, and the upper leg, a case holder that holds the bottom wall of the sealed case at a position spaced above the upper plate, an upper leg, and a lower leg To the outer surface of the bottom wall of the sealed case and the linear motion magnetic coupling that can transmit the load applied to the upper leg from the table ceiling to the lower leg. A rotating magnet coupling that is provided and magnetically couples the motor fixing portion to which the motor is fixed, the output shaft of the motor, and the rotating magnet through the bottom wall of the hermetic case, and transmits the rotation of the output shaft to the rotating magnet. And features A.

According to a third aspect of the present invention, in the weighing and stirring system according to the second aspect , a leg isolation cylinder wall is formed by projecting a part of the bottom wall in a cylindrical shape with a tip toward the inside or the outside, and One of the leg portion and the lower leg portion is provided with a cylindrical loose fitting portion that is loosely fitted on the outer side of the leg isolation cylindrical wall, while the other of the upper leg portion and the lower leg portion is provided on the inner side of the leg isolation cylindrical wall. A linearly-moving magnet coupling is provided on the cylindrical loose-fitting portion, and a plurality of magnet rings in which S magnetic poles and N magnetic poles are alternately arranged in the circumferential direction are coaxially provided. And a cylindrical first linear motion magnet in which the phases of the magnet rings are fixed so that different magnetic poles are adjacent to each other in the axial direction, and an axial loose-fitting portion, and an S magnetic pole is provided in the circumferential direction. A plurality of magnet disks alternately arranged with N magnetic poles are stacked on the same axis and differ in the axial direction. Characterized in place and a second linear magnet formed of a fixed phase of the magnet disc between such poles adjacent.

According to a fourth aspect of the present invention, there is provided a metering and agitating system according to the second or third aspect , wherein a motor isolation cylinder wall is formed by projecting into a cylindrical shape having a bottom with a part of the bottom wall facing inward. The output shaft is inserted into the motor isolation cylinder wall, and a loosely fitted cylinder that is loosely fitted to the outside of the motor isolation cylinder wall is provided so as to be rotatable integrally with the rotary magnet. A plurality of magnet rings with S magnetic poles and N magnetic poles arranged alternately in the circumferential direction are coaxially stacked, and the phases of the magnet rings are fixed so that different magnetic poles are adjacent in the axial direction. A cylindrical first rotating magnet and a plurality of magnet disks fixed to the motor output shaft and alternately arranged with S magnetic poles and N magnetic poles in the circumferential direction are stacked on the same axis, and different magnetic poles in the axial direction. Magne next to each other Characterized in place and a second rotary magnet formed of a fixed phase preparative disc together.

According to a fifth aspect of the present invention, in the metering and stirring system according to any one of the first to fourth aspects, the stirring member is provided with an upper feed wall that causes the contents in the container to flow upward by a rotating operation. It has features.

According to a sixth aspect of the present invention, in the weighing and agitating system according to the fifth aspect , the agitating member includes a base portion that rotates on the bottom surface of the container, and the rotating support column stands up from the rotation center of the base portion. First and second swiveling bars protruding laterally from the rotating column are arranged apart from each other in the axial direction of the rotating column and out of phase around the axis, and the first and second swirling bars are arranged on the upper flow wall. It is characterized in that it is formed in the shape of a slanted strip that communicates between the tips of the bars.

The invention of claim 7 is the metering and agitating system according to claim 6 , wherein the first and second swiveling bars protrude from the rotary column to both sides and are shifted by 90 degrees from each other. It is characterized in that the first and second swiveling bars are arranged in pairs at point-symmetrical positions with respect to the rotating support column and are connected spirally between the tips that are 90 degrees out of phase with each other.

According to an eighth aspect of the present invention, in the weighing and agitating system according to the fifth aspect , the agitating member includes a base portion that rotates on the bottom surface of the container, and the rotating support column stands upward from the rotation center of the base portion. Plate-like first and second swirling blades protruding laterally from the rotating column and parallel to the rotating column are arranged apart from each other in the axial direction of the rotating column and out of phase around the axis. It is characterized by a plate shape that extends from the upper edge or lower edge of the swirl feather and is inclined so as to descend in one direction around the rotary support.

The invention of claim 9 is the metering and agitating system according to any one of claims 1 to 8 , wherein the liquid is directed toward the container placed above the table-type container table and placed on the table-type container table, It is characterized by having a substance supply unit that can discharge powder and other substances.

A tenth aspect of the present invention is the metering and stirring system according to any one of the first to ninth aspects, wherein an electrode for energizing or discharging the contents in the container or a gas to the contents is supplied. It is characterized in that it is provided with a gas introduction pipe.

[Invention of Claim 1]
According to invention of Claim 1, the load of the container mounted on the table ceiling part and the stored item is transmitted to the upper plate by the table leg unit, and the weight of the container and the stored item is measured by the upper plate measuring instrument. be able to. Further, the agitation member submerged on the bottom surface in the container operates in accordance with the change in magnetic flux of the magnetic flux change imparting member, whereby the contents can be agitated. A container lower space is formed between the table ceiling and the upper plate, and a magnetic flux change imparting section for operating the stirring member is disposed in the container lower space, so that an empty space can be provided above the container. This facilitates the arrangement of the device above the container. That is, according to the present invention, the degree of freedom of the space above the container is improved when stirring is performed in a state where the container is placed on the upper plate of the upper plate weighing device.

In addition, the motor includes an output shaft that protrudes upward toward the container, and a rotating magnet that is connected to the output shaft and rotates about a rotating shaft that faces the vertical direction. Since it has a motor holding part that holds the motor so that it is not transmitted to the upper plate, and a linear motion allowable connecting mechanism part that connects the rotary magnet to the motor output shaft so that it can be moved up and down and relatively unrotatable. The weight of the motor is not applied to the upper plate, and the load applied to the table ceiling portion is not transmitted to the motor holding portion via the rotating magnet and the output shaft.

[Invention of claim 2 ]
According to the invention of claim 2 , since the load applied to the table ceiling portion arranged in the internal space of the sealed case is transmitted to the upper plate via the upper leg portion, the linear motion magnetic coupling, and the lower leg portion. The weight of the container and the contents placed on the table ceiling can be weighed with an upper pan weighing instrument outside the sealed case. Further, since the rotation of the motor is transmitted to the rotating magnet via the rotating magnet coupling, the stirring member in the container can be driven to rotate by a motor outside the sealed case. And since the upper pan weighing instrument and motor are arranged outside the sealed case, the upper pan weighing instrument and the motor may cause problems or be contaminated by the special atmosphere in the sealed case or the contents overflowing from the container. Can be prevented.

[Invention of claim 3 ]
The first magnet coupling according to the present invention repels each other, for example, on the opposing surfaces of a pair of upper leg portions and lower leg portions that are opposed to each other in the vertical direction across the bottom wall of the sealed case. It is good also as a structure which attached the magnet which fits, and good also as a structure like the invention which concerns on Claim 3 . According to the invention of claim 3 , the axial loose fitting portion provided on the other of the upper leg portion and the lower leg portion is provided inside the cylindrical loose fitting portion provided on one of the upper leg portion and the lower leg portion. Since it is loosely fitted, the horizontal movement (lateral shift) of the table ceiling with respect to the upper plate can be restricted.

[Invention of claim 4 ]
According to the invention of claim 4 , the first rotating magnet constituting the rotating magnet coupling is provided in the loosely-fitted cylinder body which is loosely fitted on the outer side of the motor separating cylinder wall, and the second rotating magnet is provided on the motor separating cylinder wall. Since the first rotating magnet and the second rotating magnet are displaced in the horizontal direction, the situation where the magnetic coupling is eliminated can be prevented.

[Invention of claim 5 ]
According to the fifth aspect of the present invention, the contents can be circulated and flowed in the depth direction of the container by the upper flow-feeding wall.

[Inventions of Claims 6 and 7 ]
According to the sixth aspect of the present invention, when the stirring member is rotated so that the lower end portion of the upper flow-feeding wall precedes the upper end portion, the upper layer portion of the stored item is provided by the first and second swirling bars. And while the lower layer part is agitated, the contents in the container can flow upward by the upper feed wall, and the contents can be circulated and flowed in the depth direction of the container. Thereby, stirring can be performed effectively. In addition, when the stirring member is rotated so that the upper end portion of the upper flow wall precedes the lower end portion, the contents in the container can be flowed downward by the upper flow wall. Also in this case, the contents can be circulated and flowed in the depth direction of the container. Here, the first swirling bar and the second swirling bar may be configured to protrude only to one side of the rotary support column and include only one upper flow-feeding wall, as in the invention of claim 7. The first swirl bar and the second swirl bar may be extended to both sides of the rotary support column, and two upper flow-feeding walls may be provided. Further, the upper flow-feeding wall may be connected in a straight line between the tips of the first and second swirl bars at the shortest distance, or may be connected in a spiral shape as in the invention of claim 7. Good.

[Invention of Claim 8 ]
According to the eighth aspect of the present invention, when the agitating member is rotated in one direction around the rotating support column, the upper layer portion and the lower layer portion of the stored item are agitated by the first and second swirling blades, and the upper portion The contents in the container flow upward due to the feed wall, and the contents can be circulated and flowed in the depth direction of the container. Thereby, stirring can be performed effectively. When the agitating member is rotated in the reverse direction, the contents in the container can be flowed downward by the upper feed wall. Also in this case, the contents can be circulated and flowed in the depth direction of the container.

[Invention of claim 9 ]
According to the ninth aspect of the present invention, it is possible to measure the weight of the contents discharged from the substance supply unit and received in the container, and to stir the contents in the container. Here, for example, when the liquid is put in the container and the granular material is discharged from the substance supply unit, the granular material received in the container while dissolving the granular material in the liquid by stirring. The weight of the body can be measured, and a solution with a predetermined concentration can be prepared.

The front view of the measurement stirring system which concerns on 1st Embodiment of this invention. Partial enlarged sectional view of the weighing and stirring system The front view of the measurement stirring system which concerns on the modification of 1st Embodiment. The front view of the supply measurement stirring system which concerns on 2nd Embodiment. The front view of the supply measurement stirring system which concerns on 3rd Embodiment The front view of the measurement stirring system which concerns on 4th Embodiment The front view of the measurement stirring system which concerns on 5th Embodiment (A) The top view seen from the axial direction upper end of the magnetic stir bar which concerns on 6th Embodiment, (B) Side view, (C) Side view of a modification (A) The top view seen from the axial direction upper end of the magnetic stirrer concerning a 7th embodiment, (B) Side view, (C) The side view seen from the overhang direction of an upper stirring blade Front view of a measuring and stirring system according to a modification Front view of a measuring and stirring system according to a modification Side view of magnetic stir bar according to modification (A) Plan view of the magnetic stirrer according to the modification viewed from the upper end in the axial direction, (B) side view, (C) side view

[First Embodiment]
Hereinafter, the metering and stirring system 190 according to the first embodiment of the present invention will be described with reference to FIGS. 1 and 2. As shown in FIG. 1, the metering and stirring system 190 includes a sealed case 100 having an internal space isolated from the outside, and accommodates liquids, powders, slurries, and other fluid-containing contents in the internal space. The flat-bottomed container 130 can be accommodated.

  The sealed case 100 has, for example, a box structure having an opening 101 only on one side surface thereof, and includes a door 102 that can close the opening 101 and an intake / exhaust pipe 103. The intake / exhaust pipe 103 communicates with the inside and outside of the sealed case 100 and protrudes to the side, so that a pump or a gas supply source (not shown) can be connected thereto. When the door 102 is closed, the internal space in the sealed case 100 can be sealed in an airtight state, and the sealed case 100 is kept in a constant temperature / humidity state or a special atmosphere different from the atmosphere (for example, different from atmospheric pressure). (A gas atmosphere different from a predetermined pressure or air).

  As shown in FIG. 1, the sealed case 100 is provided with a plurality of case support walls 104 and 104 (corresponding to the “case holding portion” of the present invention) apart from the installation surface of the weighing and stirring system 190. An upper pan weighing instrument 120 is disposed outside the case 100 and below the bottom wall 105 (hereinafter referred to as “case bottom wall 105”). The upper pan weighing instrument 120 includes an upper pan 121 for placing an object to be weighed in the center of the upper surface. The upper plate 121 is disposed below the case bottom wall 105, and the load received by the upper plate 121 from the weighing object placed on the upper plate 121, that is, the weight of the weighing object is measured by the upper plate measurement. Detection is performed by a known detection unit 124 (for example, a load cell) built in the device 120.

  The upper plate 121 includes a weighing plate 122 and a flat cover plate 123 placed on the weighing plate 122 so as to cover the entire upper surface of the weighing plate 122.

  A table-type container base 110 is disposed on the upper surface of the cover plate 123. The table-type container base 110 is composed of a flat table ceiling plate 112 (corresponding to the “table ceiling portion” of the present invention) and a plurality of table leg portions 113 depending from the table ceiling plate 112. . The table ceiling board 112 is accommodated in the internal space of the sealed case 100 and is horizontally disposed above the case bottom wall 105. A container 130 can be placed on the upper surface of the table ceiling plate 112. The table leg 113 connects the table ceiling plate 112 and the upper plate 121 (cover plate 123) with the case bottom wall 105 interposed therebetween, and can transmit a load from the table ceiling plate 112 to the upper plate 121. It has become. In addition, a container lower space S <b> 1 is formed between the table ceiling plate 112 and the upper plate 121 by the table legs 113.

  The table leg 113 is integrally provided on the table ceiling plate 112 and the lower coupler 114 (corresponding to the “lower leg” of the present invention) integrally provided on the cover plate 123 in the vertical direction. A linear motion magnetic coupling is formed between the lower coupler 114 and the upper coupler 116 which are divided into upper couplers 116 (corresponding to “upper legs” of the present invention) and arranged with the case bottom wall 105 interposed therebetween. 118 is magnetically coupled in a non-contact manner.

  In detail, as shown in FIG. 2, the lower coupler 114 stands vertically toward the case bottom wall 105 from positions apart from each other on the upper surface of the cover plate 123. The lower coupler 114 includes a cylindrical wall 114A having an open upper end at the upper end portion of the columnar body, and a part of the cylindrical wall 114A is constituted by a cylindrical first linear motion magnet 115. The first linear motion magnet 115 has a plurality of magnet rings 115R and 115R, in which S magnetic poles and N magnetic poles are alternately arranged in the circumferential direction, are stacked on the same axis, and the magnetic rings 115R so that different magnetic poles are adjacent in the axial direction. The phase between each other is fixed. The inner peripheral surface of the first linear magnet 115 constitutes the inner peripheral surface of the cylindrical wall 114A.

  Corresponding to the shape of the lower coupler 114, a plurality of hollow cylindrical protrusions 106 are formed on the case bottom wall 105. The cylindrical hollow projection 106 stands up from the case bottom wall 105 and is concentrically disposed between the upper end portions of the outer cylindrical wall 106A and the inner cylindrical wall 106B with a donut-shaped disk 106C and is connected to the inner cylindrical wall 106C. The lower end of 106B is closed with a circular plate 106D, and a cylindrical wall 114A (first linear motion magnet 115) of the lower coupler 114 is formed in a cylindrical space formed between the outer cylindrical wall 106A and the inner cylindrical wall 106B. Is loosely fitted so that it can move directly.

  On the other hand, the upper coupler 116 hangs down from the positions on the lower surface of the table ceiling board 112 toward the case bottom wall 105 (specifically, the cylindrical hollow protrusion 106). The upper coupler 116 has a columnar shape smaller in diameter than the inner diameter of the inner cylindrical wall 106B, and the lower end portion of the upper coupler 116 is constituted by a cylindrical second linear motion magnet 117. The second linear motion magnet 117 overlaps a plurality of magnet disks 117R and 117R in which S magnetic poles and N magnetic poles are alternately arranged in the circumferential direction on the same axis, and the magnetic disks 117R so that different magnetic poles are adjacent in the axial direction. The phase between each other is fixed. The outer peripheral surface of the second linear motion magnet 117 constitutes the outer peripheral surface of the upper coupler 116.

  The upper coupler 116 (second linear motion magnet 117) is loosely fitted inside the inner cylindrical wall 106B of the cylindrical hollow protrusion 106 so as to be linearly movable, and thereby the first linear motion magnet 115 and the second linear motion magnet. A magnet 117 is magnetically coupled to the inner cylinder wall 106B. Specifically, the magnet disks 117R of the second linear motion magnet 117 are respectively arranged and magnetically coupled inside the magnet rings 115R of the first linear motion magnet 115. The second linear motion magnet 117 and the first linear motion magnet 115 constitute a linear motion magnet coupling 118. The inner cylindrical wall 106 corresponds to a “leg isolation cylindrical wall” of the present invention, the upper coupler 116 corresponds to an “axial loose fitting portion” of the present invention, and the cylindrical wall 114A corresponds to “ It corresponds to a “cylindrical loose fitting part”.

  Then, the load of the weighing object placed on the table ceiling plate 112 in the sealed case 100 is transferred to the upper plate 121 of the upper plate measurer 120 disposed outside the sealed case 100 via the linear motion magnetic coupling 118. Is transmitted to. Further, since the columnar upper coupler 116 is inserted inside the cylindrical lower coupler 114 (cylindrical wall 114A), the horizontal movement (lateral shift) of the table ceiling plate 112 with respect to the upper plate 121 is restricted. be able to.

  Here, the case bottom wall 105 is disposed in the container lower space S <b> 1 so that the weight of the sealed case 100 is not transmitted to the upper plate 121. That is, the case bottom wall 105 is always spaced above the upper plate 121, and the cylindrical hollow projection 106 and the lower coupler 114 are always spaced apart in the vertical direction (see FIG. 2). .

  Further, the cylindrical hollow protrusion 106 is always separated from the upper coupler 116 and the table ceiling plate 112 in the vertical direction so that the load applied to the table ceiling plate 112 from the cylindrical hollow protrusion 106 is not transmitted. .

  The cover plate 123 is made of a nonmagnetic material and is relatively thick. By this cover plate 123, it is possible to prevent the influence of the magnetism of the direct acting magnet coupling 118 on the upper pan weighing instrument 120 (specifically, the weighing pan 122 and the detection unit 124).

  Now, in the container lower space S1 formed between the table ceiling plate 112 and the upper plate 121 of the table-type container base 110, a rotating magnet 144 according to the present invention, and a motor 140 that rotationally drives the rotating magnet 144 are provided. Is arranged. The rotating magnet 144 is housed in the space between the table ceiling plate 112 and the case bottom wall 105 in the container lower space S1, that is, the internal space of the sealed case 100, and the magnets sunk in the bottom of the container 130. The stirrer 131 (corresponding to the “stirring member” of the present invention) and the bottom wall of the container 130 and the table ceiling plate 112 are magnetically coupled. In the magnetically coupled state, the rotating magnet 144 is attracted and held upward by the magnetic stirrer 131 and is in contact with the lower surface of the table ceiling plate 112. The magnetic stirring bar 131 has, for example, a structure in which a shaft-shaped magnet is resin-coated, and rotates integrally with a rotating magnet 144 that is driven to rotate by a motor 140. The motor 140 and the rotating magnet 144 correspond to the “magnetic flux change applying unit” of the present invention.

  The motor 140 is disposed between the case bottom wall 105 and the upper plate 121 in the container lower space S <b> 1, that is, below the outside of the sealed case 100. The motor 140 is fixed to the case bottom wall 105 with the upper end surface of the stator 140S laid on the lower surface of the case bottom wall 105, and is always separated from the upper plate 121 (specifically, the cover plate 123) of the upper plate weighing instrument 120. Is held. Here, the sealed case 100 and the case support wall 104 correspond to a “motor holding portion” of the present invention, and the case bottom wall 105 corresponds to a “motor fixing portion” of the present invention.

  The motor 140 includes a rotor shaft 141 (corresponding to the “output shaft” of the present invention) protruding from the upper surface of the stator 140S toward the container 130. The rotor shaft 141 and the rotating magnet 144 are connected by a rotating magnet coupling 150 with the case bottom wall 105 interposed therebetween, so that the torque of the motor 140 can be transmitted to the rotating magnet 144 without contact.

  Specifically, the shaft coupler 142 is fixed to the upper end portion of the rotor shaft 141 so as to be integrally rotatable. The shaft coupler 142 has a columnar shape, and a cylindrical second rotating magnet 143 constitutes a part of the shaft coupler 142.

  The second rotating magnet 143 has a plurality of magnet disks 143R and 143R in which S magnetic poles and N magnetic poles are alternately arranged in the circumferential direction on the same axis, and the magnetic disks 143R are arranged so that different magnetic poles are adjacent in the axial direction. The phase is fixed. The outer peripheral surface of the second rotating magnet 143 constitutes a part of the outer peripheral surface of the shaft coupler 142.

  Corresponding to the shape of the shaft-shaped coupler 142, a cylindrical protrusion 107 (corresponding to the “motor isolation cylinder wall” of the present invention) is formed in a portion of the case bottom wall 105 disposed in the container lower space S1. Has been. The cylindrical protrusion 107 protrudes toward the internal space of the sealed case 100 and has an upper surface closed and a lower surface open. An axial coupler 142 is rotatably fitted inside the cylindrical protrusion 107.

  On the other hand, a cylindrical coupler 145 is connected to the rotating magnet 144 via a connecting shaft 147 so as to be integrally rotatable. The cylindrical coupler 145 has a structure in which the upper end of a flat cylindrical wall 145A whose axial direction is smaller than the radial direction is closed by a ceiling wall 145B, and the inner diameter of the cylindrical wall 145A is larger than the outer diameter of the cylindrical protrusion 107. It is getting bigger. A flat cylindrical first rotating magnet 146 having a small axial direction with respect to the radial direction is fixed to the lower end portion of the cylindrical wall 145A. The first rotating magnet 146 has a plurality of magnet rings 146R and 146R in which S magnetic poles and N magnetic poles are alternately arranged in the circumferential direction on the same axis, and the magnet rings 146R are arranged so that different magnetic poles are adjacent in the axial direction. The phase is fixed. Further, the inner peripheral surface of the first rotating magnet 146 constitutes a part of the inner peripheral surface of the cylindrical wall 145A of the cylindrical coupler 145.

  The cylindrical coupler 145 is loosely fitted to the outside of the cylindrical protrusion 107 so that the second rotating magnet 143 and the first rotating magnet 146 are magnetically coupled with the cylindrical wall of the cylindrical protrusion 107 interposed therebetween. . Specifically, the magnet disks 143R of the second rotating magnet 143 are respectively arranged and magnetically coupled inside the magnet rings 146R of the first rotating magnet 146. The first rotating magnet 146 and the second rotating magnet 143 constitute a rotating magnet coupling 150. The cylindrical coupler 145 corresponds to the “free fitting cylindrical body” of the present invention.

  Here, the connecting shaft 147 that connects the cylindrical coupler 145 and the rotating magnet 144 is disposed on the same axis as the rotor shaft 141 of the motor 140, and the upper end of the connecting shaft 147 cannot move up and down at the center of the rotating magnet 144. And it is fixed so that it cannot rotate.

  On the other hand, the lower end portion of the connecting shaft 147 is inserted into a connecting cylinder hole 148 penetrating the center of the ceiling wall 145B of the cylindrical coupler 145, and the vertical direction between the cylindrical coupler 145 and the connecting shaft 147 is increased. Mutual linear motion is allowed and rotation is transmitted. Specifically, splines are provided on the outer peripheral surface of the lower end portion of the connecting shaft 147 and the inner peripheral surface of the connecting cylinder hole 148, and these splines are engaged with each other.

  Thereby, the torque of the motor 140 is transmitted from the connecting shaft 147 to the rotating magnet 144 via the rotating magnet coupling 150 (the second rotating magnet 143 and the first rotating magnet 146), and the magnetic stirrer 131 in the container 130 is transmitted. It rotates about a rotation axis (specifically, a rotation axis coaxial with the rotor shaft 141 of the motor 140) that faces in the vertical direction.

  In addition, since the space between the cylindrical coupler 145 and the connecting shaft 147 can move linearly in the vertical direction, the load received by the table ceiling plate 112 is hermetically sealed via the rotating magnet 144, the connecting shaft 147 and the rotating magnet coupling 150. It is not transmitted to the case bottom wall 105 of the case 100. Further, the attractive force between the second rotating magnet 143 and the first rotating magnet 146 constituting the rotating magnet coupling 150 is not transmitted to the table ceiling board 112 via the magnetically coupled rotating magnet 144 and the magnetic stir bar 131. It is like that. Note that the spline-engaged connecting shaft 147 and connecting cylinder hole 148 correspond to the “linear motion allowable connecting mechanism portion” of the present invention.

  The above is the description regarding the configuration of the present embodiment. Next, the operation of the present embodiment will be described. When stirring and weighing the contents stored in the container 130, the display of the upper plate weighing instrument 120 is displayed with the table-type container base 110 set on the upper dish weighing instrument 120 and the container 130 is not placed. Is set to “0” (tared), and then the container 130 in which the magnetic stirring bar 131 is submerged is placed on the table ceiling plate 112. Then, the rotating magnet 144 and the magnetic stirrer 131 are magnetically coupled by mutual attractive force. When the motor 140 is turned on in this state, the torque of the motor 140 is changed to the rotating magnet coupling 150 (the second rotating magnet 143 and the first rotating magnet 143). It is transmitted to the connecting shaft 147 and the rotating magnet 144 via the rotating magnet 146). The rotating magnet 144 rotates while being attracted upward by the magnetic stirring bar 131, and the magnetic stirring bar 131 rotates integrally with the rotating magnet 144 on the bottom surface of the container 130. Thereby, a stirring vortex is generated and the contents in the container 130 are stirred.

  Further, the weight of the container 130 including the contents and the magnetic stirring bar 131 (hereinafter referred to as “the entire container 130”) is weighed by the upper pan weighing instrument 120. That is, the load of the entire container 130 placed on the table ceiling plate 112 is transmitted through the linear motion magnet coupling 118 (the first linear motion magnet 115 and the second linear motion magnet 117) provided in the table leg 113. It is transmitted to the upper plate 121 of the upper plate weighing device 120 arranged below the outside of the sealed case 100 (below the case bottom wall 105), whereby the weight of the entire container 130 is measured by the upper plate weighing device 120. The

  Here, the cylindrical hollow protrusion 106 is always separated from the upper coupler 116 and the table ceiling plate 112 in the vertical direction, so that no load is applied to the cylindrical hollow protrusion 106 from the table ceiling plate 112. Yes. In addition, since the space between the connecting shaft 147 and the cylindrical coupler 145 can be moved linearly in the vertical direction, no load is applied to the case bottom wall 105 from the table ceiling plate 112 via the rotary magnet coupling 150. That is, the load of the entire container 130 applied to the table ceiling plate 112 is applied only to the upper plate 121 of the upper plate weighing instrument 120. Further, the attractive force between the second rotating magnet 143 and the first rotating magnet 146 constituting the rotating magnet coupling 150 is not transmitted to the table ceiling plate 112. In other words, force transmission is allowed between the table ceiling plate 112 and the upper plate 121, but force transmission is blocked between the sealed case 100 and the table ceiling plate 112 and between the sealed case 100 and the upper plate 121. Therefore, the weight change of the entire container 130 can be accurately measured.

  The metering and stirring system 190 of the present embodiment can be used as a moisture meter as follows. Specifically, for example, vaporization of moisture, volatile gas, and the like contained in the stored item can be promoted by stirring, and the weight reduction amount of the stored item accompanying the vaporization can be measured by the upper plate weighing device 120. The vaporized component can be discharged outside the sealed case 100 by a suction pump connected to the intake / exhaust pipe 103.

  In addition, for example, the reaction gas is supplied into the sealed case 100 from the intake / exhaust pipe 103 or a gas introduction pipe (not shown), and the reaction between the reaction gas and the contained material is promoted by stirring, so that the weight change of the contained material as the reaction proceeds. It can be weighed by the pan weighing instrument 120.

  In addition, for example, the inside of the sealed case 100 is set to a predetermined humidity, and the container 130 containing the hygroscopic material is disposed in the sealed case 100, the moisture absorption is promoted by stirring, and the weight change of the hygroscopic material is measured by the upper pan meter 120. Can be weighed.

  Thus, according to this embodiment, since the motor 140 and the rotating magnet 144 for driving the magnetic stirrer 131 to rotate are disposed in the container lower space S1, an empty space can be provided above the container 130. This makes it easy to place devices in the empty space. That is, according to the present invention, the degree of freedom of the space above the container 130 is improved when stirring is performed in a state where the container 130 is disposed on the upper plate 121 of the upper plate weighing instrument 120.

  In addition, since the upper pan weighing instrument 120 and the motor 140 are disposed outside the sealed case 100, the upper pan weighing instrument 120 and the motor 140 may be moved depending on the special atmosphere state in the sealed case 100 or the contents overflowing from the container 130. It is possible to prevent problems and contamination.

  FIG. 3 shows a measuring and stirring system 190 as a modification of the present embodiment. The metering and stirring system 190 includes a lamp heater 181 (an infrared lamp or a halogen lamp) in the sealed case 100. The lamp heater 181 is disposed at a side position of the container 130 in order to heat the contents accommodated in the container 130. That is, stirring and weight measurement can be performed while heating the contents with the lamp heater 181. Note that a temperature sensor 182 is inserted into the container 130 so that the temperature of the stored item can be constantly measured.

  In this measuring and stirring system 190, moisture is forcibly evaporated from a granular material or slurry-like accommodation by heating with a lamp heater 181 or vacuum drying by evacuation, and its weight change is observed, or a liquid (solution) Can be concentrated to a predetermined weight. Since the contents can be heated or dried while stirring, the contents can be heated and dried evenly, and moisture can be evaporated evenly from the granular or slurry-like contents. In addition, since the pan weighing instrument 120 is disposed outside the sealed case 100, measurement errors due to heat and evaporation components from the lamp heater 181 can be prevented. The evaporated component can be discharged out of the sealed case 100 by a suction pump (not shown) connected to the intake / exhaust pipe 103.

  By the way, as a device to be arranged in an empty space above the container 130, the viscosity, temperature, In addition, a measuring apparatus for measuring physical quantities can be used. Hereinafter, in the second to fifth embodiments, a case where devices are arranged in an empty space above the container 130 will be described.

[Second Embodiment]
In the present embodiment, the granular material supply apparatus 10 (corresponding to the “substance supply unit” of the present invention) for supplying granular materials to the container 130 placed on the table-type container table 110 is disposed above the container 130. Are arranged in the empty space. Hereinafter, the present embodiment will be described with reference to FIG. 4, but the same components as those in the first embodiment are denoted by the same reference numerals, and redundant descriptions are omitted.

  The granular material supply apparatus 10 includes a supply drum 11 capable of accommodating the granular material in the internal space of the sealed case 100. The supply drum 11 is suspended from the ceiling wall 108 of the sealed case 100 (hereinafter referred to as “case ceiling wall 108”). Specifically, it is detachably suspended from the case ceiling wall 108 by an attractive force between a magnet (not shown) provided at the upper end of the supply drum 11 and a magnet (not shown) fixed to the case ceiling wall 108. ing. A discharge rotation guide (not shown) is accommodated in the supply drum 11. When the discharge rotation guide is driven by a motor 50 provided outside the sealed case 100, the granular material accommodated in the supply drum 11 is discharged downward from the lower end opening 13 and immediately below the supply drum 11. It is supplied to the container 130 located.

  The granular material supply apparatus 10 includes a replenisher 200 for supplying the granular material to the supply drum 11. The replenishing machine 200 includes a replenishing drum 211 containing powder particles, and a replenishing pipe 213 that hangs down from the replenishing drum 211 and penetrates the case ceiling wall 108 in an airtight state and is inserted into the supplying drum 11. The powder 250 is supplied into the supply drum 11 through the supply pipe 213 by the motor 250 rotating and driving a discharge rotation guide (not shown) accommodated in the drum 211. Here, a table-shaped fixed base 310 is placed on the case ceiling wall 108, and the supply drum 211 is suspended from the top plate 310 </ b> A of the fixed base 310.

  In addition, a hopper 270 and a chute 271 for supplying powder particles to the supply drum 211 are fixed to the fixed base 310. The hopper 270 and the chute 271 are integrated, and the hopper 270 is held by the top plate 310A. In the middle of the chute 271, two valves 272 and 272 are arranged one above the other so that the inside of the supply drum 211 communicating with the inside space of the sealed case 100 through the supply pipe 213 and the supply drum 11 is airtight. It is possible to hold it.

  The metered stirring system 190 of the present embodiment can be used, for example, for preparing a solution or slurry having a predetermined concentration. Specifically, a liquid is put in a container 130 having a known weight, and the weight of the liquid is measured by the upper pan meter 120, and the target supply weight of the granular material is controlled based on the weight of the liquid and the target concentration. Set to 184. Next, the motors 50 and 140 are turned on, and stirring is performed while supplying the granular material from the granular material supply apparatus 10 to the container 130 little by little to dissolve or disperse the granular material in the liquid. During this time, the measurement result obtained by the upper pan weighing instrument 120 is taken into the control device 184. The amount of increase in the weight measured by the pan weighing instrument 120 is the total weight of the powder and granular material supplied to the container 130. When the amount of increase in the weight reaches the target supply weight, the controller 184 causes the motor 50 to be turned on. Automatic stop to stop supplying powder. Thereby, the solution or slurry of predetermined concentration can be adjusted automatically.

  Conventionally, when preparing a solution or slurry having a predetermined concentration, two steps of a measuring step for preliminarily measuring the granular material and an agitating step for dissolving or dispersing the weighed granular material in the liquid are required. However, according to this embodiment, since these metering and stirring can be performed simultaneously, the solution or slurry can be prepared quickly.

  For example, it can utilize for measuring the saturation solubility of the granular material with respect to the liquid. That is, a liquid capable of dissolving the granular material is put in a container 130 having a known weight, and the weight of only the liquid is weighed by the upper-plate weighing device 120. Then, the motors 50 and 140 are turned on to Agitation is performed while supplying the granular material from the granular material supply device 10 little by little to dissolve the granular material in the liquid. And the dissolution state of a granular material is confirmed visually and when the melt | dissolution residue of a granular material generate | occur | produces, the motor 50 is turned off and supply of a granular material is stopped. At this time, the amount of increase in the weight measured by the upper plate weighing instrument 120 is the total weight of the granular material supplied to the container 130, and is based on the total weight of the supplied granular material and the weight of the liquid. The saturation solubility of the granular material with respect to the liquid can be calculated.

[Third Embodiment]
This third embodiment is shown in FIG. 5, and the weight of the powder discharged from the powder supply device 10 is measured by the measuring device 300 placed on the top plate 310 </ b> A of the fixed base 310. This is different from the second embodiment. Specifically, the supply drum 11 is suspended from the case ceiling wall 108 so as to be able to move directly, and is provided with a movable base 320 that is magnetically coupled to the supply drum 11 via the motor 50 and can move up and down together with the supply drum 11. The measuring device 300 is disposed between the fixed base 310 and the movable base 320. The change in the weight of the entire supply drum 11 including the powder particles is transmitted to the measuring device 300 via the motor 50 and the movable base 320, and the weight reduction amount of the entire supply drum 11 including the powder particles is discharged from the supply drum 11. It is possible to measure by weight (loss-in-weight method) as the weight of the granular material. In addition, in the internal space of the sealed case 100, the contents received in the container 130 (specifically, the powder, the solution in which the powder is dissolved, the slurry in which the powder is dispersed) are heated. A lamp heater 181 is provided. In addition, a temperature sensor 182 for measuring the temperature of the contained item is inserted into the container 130.

  Here, with the upper pan weighing instrument 120 provided below the sealed case 100, as described in the first embodiment, it is possible to measure the weight change of the entire container 130 including the contents. However, when the granular material is supplied while heating the contents in the container 130 by the lamp heater 181, a situation occurs in which the increase in weight due to the supply of the granular material is offset by the decrease in weight due to moisture evaporated from the content. obtain. That is, the increase in the weight measured by the upper pan weighing instrument 120 may not match the actual weight of the powder and granular material supplied to the container 130.

  On the other hand, according to the configuration of the present embodiment, the weight of the granular material discharged from the supply drum 11 is measured by the measuring device 300 provided separately from the upper plate measuring device 120. Even if moisture may evaporate from the contents in the container 130, the weight of the powder supplied to the container 130 can be accurately measured.

[Fourth Embodiment]
In the present embodiment, a viscosity measuring device 185 is disposed in an empty space above the container 130 placed on the table-type container table 110. Hereinafter, the same components as those in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

  As shown in FIG. 6, the viscosity measuring device 185 includes a rotating body 188 at the tip of a shaft 187 extending from the motor 186, and the rotating body 188 is submerged in the container and rotated at a constant speed. The viscosity is measured based on the magnitude of the rotational torque (see, for example, JIS Z 8803 “Liquid Viscosity—Measurement Method”). The viscosity measuring device 185 is fixedly held at a position directly above the container 130 by the case ceiling wall 108.

  In the inner space of the sealed case 100, a lamp heater 181 is provided just in the lateral position of the container 130, so that the temperature of the contents can be gradually changed at a constant speed. In addition, the amount of water evaporated by heating can be measured by the upper pan meter 120.

  Here, when the container is an emulsion (emulsion) or a slurry in which solid particles are dispersed in a liquid, the emulsion is separated into a two-phase liquid during viscosity measurement, or the slurry is converted into a solid and a liquid. Although there is a possibility of separation, in this embodiment, even if it is separated, it can be returned to an emulsified state or a slurry state by stirring with the magnetic stirring bar 131. Moreover, it is possible to maintain a uniform dispersed state by stirring the contents with the magnetic stirrer 131 as needed, and the viscosity as an emulsified liquid or slurry can be continuously measured. . Moreover, when heating with the lamp heater 181, the contents can be evenly heated by stirring the contents.

[Fifth Embodiment]
In the present embodiment, a solidification temperature measuring device 189 is arranged in an empty space above the container 130 placed on the table-type container table 110. As shown in FIG. 7, the solidification temperature measuring instrument 189 includes a rotating body 188 at the tip of a shaft 187 extending from the motor 186, and the motor 186 and the shaft 187 are connected by a magnetic clutch (not shown). Yes. The magnetic clutch is composed of a magnet fixed to the output shaft of the motor 186 and a magnet fixed to the upper end of the shaft 187. Usually, the output torque of the motor 186 is converted into a shaft by magnetic coupling of the pair of magnets. 187 can be transmitted. When the torque required to rotate the rotating body 188 in the package exceeds the output torque of the motor 186, the pair of magnets slip (relative rotation). A sensor (not shown) is provided for detection. In addition, since the other structure is the same structure as 1st Embodiment, the overlapping description is abbreviate | omitted.

  The solidification temperature is measured as follows. First, the container 130 containing the contents is placed on the table-type container table 110, and the contents are heated to a predetermined temperature by the lamp heater 181. Next, while rotating the rotator 188 at a constant speed, natural cooling or forced cooling (specifically, cooling air is supplied from the nozzle 183 in the sealed case 100), and the temperature of the contained material is gradually lowered. . As the temperature decreases, the contents gradually lose fluidity and the torque required to rotate the rotator 188 within the contents increases. Then, based on the temperature at the time when the sensor detects the slip of the magnetic clutch, the coagulation temperature is calculated using a predetermined calculation formula or a calibration curve.

  According to this embodiment, the contents can be heated uniformly by stirring with the magnetic stirrer 131 when the contents are heated. Further, it is possible to measure a change in weight while measuring the solidification temperature.

[ Sixth Embodiment]
This embodiment is different from the first embodiment in the configuration of the magnetic stirring bar. Hereinafter, the same components as those in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

As shown in FIGS. 8A and 8B, the magnetic stirrer 170 of this embodiment is a disc-shaped magnet base 171 that is magnetically coupled to the rotating magnet 144 (corresponding to the “base portion” of the present invention). And a rotating column 172 standing upright from the rotation center of the magnet base 171, and a stirring unit 173 provided integrally with the rotating column 172.

  The agitating unit 173 has an upper horizontal bar 174A that is orthogonal to the rotating column 172 at the upper end position of the rotating column 172 and protrudes in a direction opposite to the rotating column 172, and is orthogonal to the rotating column 172 at a position near the lower end of the rotating column 172. The lower horizontal bar 174B protrudes from the rotating column 172 in the opposite direction and intersects the upper horizontal bar 174A at a right angle. The upper horizontal bar 174A has an end portion between the upper horizontal bar 174A and the lower horizontal bar 174B. A structure is formed in which the other end of the horizontal bar 174A and the other end of the lower horizontal bar 174B are spirally connected by upper plate-shaped upper flow walls 175 and 175, respectively.

Specifically, the upper horizontal bar 174 </ b> A and the lower horizontal bar 174 </ b> B are shifted by 90 degrees around the axis of the rotary column 172. That is, as shown in FIG. 8 (A), when viewed magnetic stirring bar 170 from the axial direction upper end of the rotating strut 172, an upper horizontal bar 174A and a lower horizontal bar 174B is intersect in a cross shape, One end portion of the upper horizontal bar 174A and one end portion of the lower horizontal bar 174B, which is 90 degrees ahead in the clockwise direction from the one end portion, are connected by an upper flow wall 175, and the other end portion of the upper horizontal bar 174A. And the other end of the lower horizontal bar 174B, which is 90 degrees in the clockwise direction from the other end, is connected by another upper feed wall 175. These upper Okuryukabe 175, 175, when viewed from the axial direction of the rotating strut 172 has an arc shape centered on the laterally spaced and rotating strut 172 of the rotating strut 172 (FIG. 8 (A) (See FIG. 4), and is disposed at a point-symmetrical position with respect to the rotating column 172. Further, when viewed from the axial direction of the upper horizontal bar 174A, the upper horizontal bar 174A is gently curved so as to be slightly convex downward (see FIG. 8B ). The upper horizontal bar 174A and the lower horizontal bar 174B correspond to the “first swivel bar” and the “second swivel bar” of the present invention.

The magnetic stirrer 170 agitates the upper layer portion of the accommodation with the upper horizontal bar 174A, and agitates the lower layer portion of the accommodation with the lower horizontal bar 174B, and the upper flow walls 175, 175 depending on the rotation direction. Imparts lift or settling force to the contents in the container 130. For example, if the lower end of the upper Okuryukabe 175, 175 is rotated in a direction ahead of the upper end (the clockwise direction in to FIG. 8 (A)) is obliquely upwardly of the upper Okuryukabe 175, 175 Along the upward inclined surface 175 </ b> A facing the, the lower layer contents in the container 130 flow upward.

On the other hand, the magnetic stirring bar 170, when the upper end of the upper Okuryukabe 175, 175 is rotated in a direction ahead of the lower end (the counterclockwise direction in to FIG. 8 (A)), the upper Okuryukabe The upper layer of the container 130 flows downward along the downwardly inclined surface 175B of 175 and 175 facing obliquely downward. In any of these rotational directions, the contents can be circulated and flowed in the depth direction (vertical direction) of the container 130 by the upper flow walls 175 and 175.

As described above, according to the present embodiment, the same effects as those of the first embodiment can be obtained, and the upper horizontal bar 174A, the lower horizontal bar 174B, and the upper flow walls 175 and 175 cooperate to stir the contents. Therefore, compared with what performs stirring operation only by the bottom part of the container 130, it can stir effectively. As a modification of this embodiment, as shown in FIG. 8 (C), it may be up and down by reversing structure fixed to the magnet base 171 of the rotating strut 172 of the present embodiment.

[ Seventh Embodiment]
This embodiment is shown in FIG. 9, and as shown in FIG. 9B, the magnetic stirring bar 176 includes an upper stirring blade 177 and a lower stirring blade 178. The upper stirring blade 177 protrudes from the upper end of the rotating column 172 in a direction orthogonal to the rotating column 172. The lower stirring blade 178 is in a direction perpendicular to the rotating column 172 and opposite to the upper stirring blade 177 from a position near the lower end of the rotating column 172 (in other words, 180 degrees phase with the upper stirring blade 177 around the axis of the rotating column 172). It is overhanging (from the position shifted). Both the upper stirring blade 177 and the lower stirring blade 178 have a plate shape that is parallel to the axial direction of the rotating column 172 and is horizontally long. In addition, upper flow-feed walls 179 and 179 are integrally formed at the distal ends of the upper stirring blade 177 and the lower stirring blade 178 away from the rotary support 172, respectively.

The upper feed walls 179 and 179 have a flat plate shape and extend obliquely downward from the lower edges of the upper stirring blade 177 and the lower stirring blade 178. Specifically, when viewed from the upper end side in the axial direction of the rotary support column 172, the upper flow-feeding walls 179 and 179 are arranged on one side in the circumferential direction from the lower edges of the upper stirring blade 177 and the lower stirring blade 178 (specifically, is provided so as pushed out clockwise) reference (FIG. 9 (a)). The upper stirring blade 177 and the lower stirring blade 178 correspond to the “first swirling blade” and the “second swirling blade” of the present invention. The other configuration is the same as that of the sixth embodiment, and a duplicate description is omitted.

The magnetic stirrer 176 stirs the upper layer portion of the stored material with the upper stirring blade 177 and the lower layer portion of the stored material with the lower stirring blade 178, and the upper flow walls 179 and 179 according to the rotation direction. Imparts lift or settling force to the contents in the container 130. For example, when a magnetic stirring bar 176 is rotated in a direction out approaching the upper Okuryukabe 179,179 (clockwise in FIG. 9 (A)), as shown in FIG. 9 (C), the upper flow sending Among the walls 179, 179, the contents are guided by the upward inclined surface 179A facing obliquely upward. Further, when the direction in which the upper Okuryukabe 179,179 began approaching rotated in the reverse direction (counterclockwise direction in FIG. 9 (A)), of the upper Okuryukabe 179,179, obliquely downward The contents descend while being guided by the downward inclined surface 179B. In any of these rotational directions, the contents can be circulated in the depth direction (vertical direction) of the container 130.

  As described above, according to the present embodiment, the same effects as those of the first embodiment can be obtained, and the upper stirring blade 177, the lower stirring blade 178, and the upper feed walls 179 and 179 can cooperate to stir the contents. Therefore, compared with what performs stirring operation only by the bottom part of the container 130, it can stir effectively.

[Other Embodiments]
The present invention is not limited to the above-described embodiment. For example, the embodiments described below are also included in the technical scope of the present invention, and various other than the following can be made without departing from the scope of the invention. It can be changed and implemented.

  (1) In the above-described embodiment, the sealed case 100 having the internal space isolated from the outside is provided. However, the sealed case 100 may not be provided. For example, as shown in FIG. 10, a gate that is directly connected between a table ceiling plate 112 and a cover plate 123 by a plurality of table legs 113 that are not divided vertically and fixed to the installation surface of the weighing and stirring system 190. A top plate 400 </ b> A of the fixed base 400 having a shape is disposed between the table ceiling plate 112 and the cover plate 123. The table leg 113 penetrates the top plate 400A in a loosely fitted state (non-contact), and the motor 140 is fixed to the lower surface of the top plate 400A away from the upper plate 121. Further, a linear motion permissible sleeve 401 is provided between the rotor shaft 141 of the motor 140 and the connecting shaft 147 fixed to the rotating magnet 144 to allow mutual linear motion in the vertical direction and transmit rotation. Even with the above configuration, the same effects as those of the first embodiment can be obtained.

(2) In the above embodiment, the motor 140 is fixed to the case bottom wall 105 of the sealed case 100 in a state of being separated from the upper plate 121, but the space between the table ceiling plate 112 and the cover plate 123 is fixed. , directly connected by a plurality of table legs 113 which is not divided into upper and lower (see FIG. 10), but it may also be placed on the motor 14 on the upper surface of the cover plate 123.

(3) In the above-described embodiment, the table leg 113 has the upper coupler 116 inserted inside the cylindrical lower coupler 114, and inside the cylindrical first linear motion magnet 115 provided in the lower coupler 114. second linear magnet 117 provided in the upper coupler 116 is disposed, but they had become a structure in which magnetically coupled in the horizontal direction (see FIG. 2) may be configured as shown in FIG. 11. That is, the table leg 113 is cut at a cut surface perpendicular to the axial direction in the middle of the vertical direction to form a pair of leg constituents 113A and 113B, and in the vertical direction of the leg constituents 113A and 113B. Magnets 119 and 119 that repel each other may be disposed on the opposing surfaces. In this case, in order to restrict the lateral displacement of the cover plate 123 and the table ceiling plate 112 in the upper plate 121 in the horizontal direction, for example, the outer side of each leg component 113A, 113B protrudes from the upper and lower surfaces of the case bottom wall 105. A pair of linear motion guide cylinders 109 and 109 are provided so as to be freely movable. Alternatively, although not shown, instead of the linear motion guide cylinders 109, 109, guide posts are provided on the case bottom wall 105 so that the guide posts can be freely moved in the guide holes formed in the magnets 119, 119. It is good also as the structure which fitted.

(4) In the above embodiment, the rotating magnet 14 4 rotationally driven by a motor 140, of which the magnetically coupled magnetic stirring bar 131 contained goods by rotating operation about an axis of rotation oriented in the vertical direction had been stirred, this rotation may be a rotation in the predetermined direction, but it may also in reciprocating rotational repeating rotating or pivoting the forward and reverse directions.

(5) In the above embodiment, the spline formed on the outer peripheral surface of the connecting shaft 147 and the inner peripheral surface of the connecting cylindrical hole 148 of the cylindrical coupler 145 may be an involute spline or a square spline.

(6) Also, the spline is not limited. For example, either one of a key or a key groove extending in the axial direction is provided on the outer peripheral surface of the connecting shaft 147, and the key or key groove is provided on the inner peripheral surface of the connecting cylindrical hole 148. The other of the key grooves may be provided so that the keys and the key groove engage with each other so that they can move linearly in the vertical direction.

  (7) In the above embodiment, the upper plate 121 is constituted by the weighing plate 122 and the cover plate 123. However, the table-shaped container is configured such that the table leg portion 113 abuts the weighing plate 122 as a configuration without the cover plate 123. A table 110 may be placed.

  (8) In the above embodiment, the case bottom wall 105 is separated above the upper plate 121 of the upper plate weighing instrument 120 by fixing the sealed case 100 on the case support walls 104 and 104 erected from the installation surface. However, the sealed case 100 may be hung so as not to move in the vertical direction and the horizontal direction from above the upper pan weighing instrument 120.

  (9) In the above embodiment, the cylindrical wall 114A is formed on the lower coupler 114, and the upper coupler 116 is loosely fitted inside the cylindrical wall 114A. It is good also as a structure which provided and the lower coupler 114 was loosely fitted inside so that it could move linearly.

  (10) In the second and third embodiments, the powder supply device 10 (see FIGS. 4 and 5) for supplying the powder to the empty space above the container 130 is disposed, but the liquid is supplied. The liquid supply device may be arranged so that the liquid can be supplied to the container 130.

  (11) In the second and third embodiments, when other liquids, granular materials or other supply substances are supplied and mixed with the liquid stored in the container 130, the pH, conductivity, A sensor capable of measuring the rate, specific gravity, dissolved substance concentration, and the like may be inserted, and a change in each of these parameters may be measured along with the supply amount of the supply substance.

( 12 ) In the sixth embodiment, the upper horizontal bar 174A and the lower horizontal bar 174B protrude from the rotating column 172 to both sides (when viewed from the axial direction of the rotating column 172, the upper horizontal bar 174A and the lower horizontal bar 174B crossed in a “cross shape” and provided with two upper flow walls 175, 175, but the upper horizontal bar 174A and the lower horizontal bar 174B are only on one side from the rotating column 172, respectively. It is good also as a structure which connected the front-end | tip parts of these upper horizontal bar 174A and the lower horizontal bar 174B with one upper flow-feeding wall 175 so that it may overhang. Further, the phase difference between the upper horizontal bar 174A and the lower horizontal bar 174 connected by the upper flow wall 175 may be an angle other than 90 degrees.

( 13 ) In the seventh embodiment, the upper flow-feed walls 179 and 179 are partially provided at the tips of the upper stirring blade 177 and the lower stirring blade 178. You may extend from the whole lower end edge. Further, the upper flow-feeding walls 179 and 179 may be extended from the upper end edges of the upper stirring blade 177 and the lower stirring blade 178. Further, although not shown in the drawing, an intermediate stirring blade may be provided at an intermediate position of the rotary support column 172 out of phase with the upper stirring blade 177 and the lower stirring blade 178, and an upper feed wall 179 may also be provided on the intermediate stirring blade. .

( 14 ) In the sixth or seventh embodiment, a protrusion 191 may be provided in the center of the lower surface of the magnet base 171 to reduce friction between the bottom surface of the container 130 and the magnet base 171. At this time, as shown in FIG. 12 , for example, a spherical float 192 is attached to the upper end portion of the rotating support column 172 in order to prevent the magnetic stirring bars 170 and 176 (the rotating support column 172) from being inclined with respect to the bottom surface of the container 130. May be. The float 192 can be balanced so that the rotating column 172 is substantially perpendicular to the bottom surface of the container 130 by the buoyancy of the float 192. Further, if the magnet base 171 is lifted from the bottom surface of the container 130 by the buoyancy of the float 192, friction itself can be prevented.

As a modification of (15) a magnetic stir bar, as shown in FIG. 13 (B), it may be upright to the upper end portion of the rotating strut 172 fitted with a float 192 and a flat plate-like impeller 193 structure from the magnet base 171. Flat impeller 193 has a configuration in which overhang four shearing blades 193B toward the orthogonal flat base or al sides by rotating strut 172 (see FIG. 13 (A)). Each shear blade 193B has a thin plate shape and tapers so that its width decreases toward the tip. Also, among the four shear blades 193B, 1 pair of shear blades 193B protruding in opposite directions to each other are inclined to descend thus directed to whether we tip flat base (FIG. 13 (B) see ) The other pair of shear blades 193B are inclined obliquely upward from the flat plate base (see FIG. 13C).

Name your, operation and effect of the float 192, it is the same as the above-mentioned (14).

( 16 ) In the third embodiment, an electrode (not shown) is arranged in the container 130 to energize and discharge the contents (liquid, powder) in the container 130. You may measure the weight change accompanying reaction. Further, a gas introduction pipe (not shown) is inserted into the container 130 to supply gas to the contents (liquid, powder) in the container 130, and the contents of the contents accompanying the chemical reaction at this time are supplied. You may measure a weight change.

10 Powder supply device (substance supply unit)
100 Sealed case (motor holding part)
104 Case support wall (case holder)
105 Case bottom wall (Motor fixing part)
106B Inner cylinder wall (leg isolation cylinder wall)
107 Cylindrical protrusion (motor isolation cylinder wall)
110 Table type container stand 112 Table ceiling board (table ceiling part)
113 Table leg 113A Leg component (upper leg)
113B leg structure (lower leg)
114 Lower coupler (lower leg)
114A Cylindrical wall (tubular loose fitting)
115 First linear motion magnet 115R Magnet ring 116 Upper coupler (upper leg, shaft-shaped loose fitting)
117 2nd linear motion magnet 117R Magnet disk 118 Direct motion magnet coupling 120 Upper pan weighing device 121 Upper pan 130 Container 131 Magnetic stirrer (stirring member)
140 Motor (magnetic flux change applying part)
141 Rotor shaft (output shaft)
143 Second rotating magnet 143R Magnet disk 144 Rotating magnet (magnetic flux change applying portion)
145 Tubular coupler (free fitting cylinder)
146 First rotating magnet 146R Magnet ring 147 Connecting shaft 148 Connecting cylinder hole 150 Rotating magnet coupling 170 Magnetic stirrer (stirring member)
171 Magnet base (base part)
172 Rotating column 174A Upper horizontal bar (swivel bar)
174B Lower horizontal bar (swivel bar)
175,175 Upper flow wall 176 Magnetic stirrer (stirring member)
177 Upper stirring blade (swirl blade)
178 Lower stirring blade (swivel blade)
179 Upper feed wall 190 Weighing and stirring system S1 Container lower space

Claims (10)

A container is placed on the upper plate of the upper plate weighing device, and the weight of the container and the loaded material is agitated with the upper plate weighing device while stirring the liquid, the granular material and other items contained in the container. A weighing and stirring system for weighing ,
A table-shaped container base placed on the upper plate;
A table ceiling provided on the table-shaped container base, facing the upper plate from above, and on which the container is placed;
Provided on the table-type container base, suspended from the table ceiling part and abutted against the upper plate, and transmits the load of the container and the contents on the table ceiling unit to the upper plate, and Table legs forming a container lower space between the table ceiling and the upper plate;
A magnetic flux change imparting section that is disposed in the lower space of the container, is capable of imparting a magnetic flux toward the container and changing the magnetic flux;
In addition to being submerged on the bottom surface in the container, and provided with a stirring member that is magnetically coupled to the magnetic flux change applying unit and operates to stir the contents in accordance with the change of the magnetic flux ,
The magnetic flux change imparting unit includes a motor provided with an output shaft protruding upward toward the container, and a rotating magnet connected to the output shaft and rotating about a rotating shaft facing in the vertical direction. ,
A motor holding unit for holding the motor so that its own weight is not transmitted to the upper plate;
A linear motion permissible coupling mechanism that couples the rotating magnet to be vertically movable and relatively non-rotatable with respect to the output shaft of the motor;
The measuring and stirring system according to claim 1, wherein the rotating magnet is held in a vertically movable state together with the table ceiling by magnetic coupling with the stirring member . An upper leg and a lower leg formed by dividing the table leg in the middle in the vertical direction;
A sealed case containing an internal space isolated from the outside and containing the container, the table ceiling, and the upper leg;
A case holding portion for holding the bottom wall of the sealed case at a position spaced above the upper plate;
Linear motion capable of magnetically coupling the upper leg portion and the lower leg portion via the bottom wall of the hermetic case and transmitting a load applied from the table ceiling portion to the upper leg portion to the lower leg portion With magnetic coupling,
A motor fixing portion provided on the outer surface of the bottom wall of the hermetic case, to which the motor is fixed;
A rotating magnet coupling capable of magnetically coupling the output shaft of the motor and the rotating magnet through a bottom wall of the hermetic case and transmitting the rotation of the output shaft to the rotating magnet. The metering and stirring system according to claim 1. A leg isolation cylinder wall is formed by projecting a part of the bottom wall in a cylindrical shape with a tip toward the inside or the outside, and the leg isolation is formed on one of the upper leg and the lower leg. A cylindrical loosely fitted portion that is loosely fitted to the outside of the cylindrical wall is provided, and an axial loosely fitted portion that is loosely fitted to the inside of the leg-separated cylindrical wall is provided on the other of the upper leg portion and the lower leg portion. Provided,
The linear motion magnet coupling is provided in the cylindrical loose fitting portion, and a plurality of magnet rings in which S magnetic poles and N magnetic poles are alternately arranged in the circumferential direction are coaxially stacked, and different magnetic poles in the axial direction are provided. A cylindrical first linear motion magnet in which the phases of the magnet rings are fixed so as to be adjacent to each other;
A plurality of magnet disks, which are provided in the shaft-shaped loosely-fitted portion and in which the S magnetic poles and the N magnetic poles are alternately arranged in the circumferential direction, are stacked on the same axis, and the magnetic disks are arranged so that different magnetic poles are adjacent in the axial direction. The metering and stirring system according to claim 2, comprising a second linear motion magnet having a fixed phase . Forming a motor isolation cylinder wall projecting in a cylindrical shape with a tip at the bottom with a part of the bottom wall facing inward, and making the output shaft of the motor enter the motor isolation cylinder wall, A loosely fitting cylinder body loosely fitted to the outside of the motor isolation cylinder wall is provided so as to be integrally rotatable with the rotating magnet;
The rotary magnet coupling is provided in the loose fitting cylinder, and a plurality of magnet rings in which S magnetic poles and N magnetic poles are alternately arranged in the circumferential direction are coaxially stacked, and magnetic poles different in the axial direction are adjacent to each other. A cylindrical first rotating magnet having a fixed phase between the magnet rings,
A plurality of magnet disks fixed to the output shaft of the motor and having S magnetic poles and N magnetic poles alternately arranged in the circumferential direction are stacked on the same axis, and the magnetic disks are arranged so that different magnetic poles are adjacent in the axial direction. The metering and agitation system according to claim 2 or 3 , comprising a second rotating magnet having a fixed phase . The metering stirring system according to any one of claims 1 to 4 , wherein the stirring member is provided with an upper flow-feeding wall that allows the contents in the container to flow upward by a rotating operation. . The stirring member includes a base portion that rotates on the bottom surface of the container,
A rotating column rises upward from the center of rotation of the base portion, and the first and second swiveling bars protruding laterally from the rotating column are separated in the axial direction of the rotating column and have a phase around the axis. Placed and
6. The metering and stirring system according to claim 5 , wherein the upper flow-feeding wall is formed in a strip-like shape that is in communication with the tip ends of the first and second swiveling bars . The first and second swiveling bars protrude from the rotating column to both sides and are 90 degrees out of phase with each other;
The band plate-like members are arranged in pairs at point-symmetrical positions with respect to the rotary column, and spirally communicate between the tips of the first and second swiveling bars that are 90 degrees out of phase with each other. The metering and stirring system according to claim 6 . The stirring member includes a base portion that rotates on the bottom surface of the container,
A rotating support column rises upward from the center of rotation of the base portion, and plate-like first and second swirling blades that protrude laterally from the rotating support column and are parallel to the rotating support column are axial directions of the rotating support column. Separated by and shifted around the axis,
The upper flow-feeding wall is formed in a plate shape that extends from the upper end edge or the lower end edge of the first and second swirl feathers and is inclined so as to descend toward one direction around the rotary support column. The metering and stirring system according to claim 5 . The apparatus according to claim 1, further comprising a substance supply unit disposed above the table-type container table and capable of discharging a liquid, a granular material, or other substances toward the container placed on the table-type container table. The metering and stirring system according to any one of 1 to 8. 10. The apparatus according to claim 1, further comprising an electrode for energizing or discharging the container in the container, or a gas introduction pipe for supplying gas to the container. The metering and stirring system described in 1.

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