JP2577317B2 - Stirrer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stirrer used for stirring and mixing an object to be stirred.

[0002]

2. Description of the Related Art For example, in the production of sponge dough, it is important to uniformly mix a mixture of foamed eggs and sugar and flour to obtain a soft and uniform product. Conventionally, the mixture of such a foamed egg with sugar or the like and the flour are manually or mechanically mixed. In the case of stirring and mixing by hand, the convection of flour and the mixture of foamed eggs and sugar etc. in the ball due to the delicate movement of the finger can be increased and the flour can be mixed as a whole, making it difficult for flour to flour,
There is an advantage that fine and soft fabrics can be manufactured. On the other hand, when stirring and mixing by a machine, there is an advantage that the stirring and mixing operation can be performed with reduced labor.

[0003]

However, the manual stirring and mixing work requires a skill of an operator, and there are a problem that a skilled craftsman cannot do it well and a problem of heavy labor. On the other hand, the stirring and mixing work with a machine is difficult to perform delicate movements like a hand, and the convection between the mixture of foamed eggs and sugar in the bowl and the flour cannot be increased. However, there is a problem that the flour is scattered in small chunks in the agitated object, and the dough itself becomes slightly rough.

[0004] It is an object of the present invention to provide a stirrer capable of stirring and mixing with a movement similar to the movement of a hand even when using a machine. Further, another object of the present invention is to enable stirring and mixing with a movement similar to the movement of a hand even when using a machine, and furthermore, stirring and mixing which can be uniformly stirred and mixed in a circumferential direction in a ball. It is to provide a device. Also,
Another object of the present invention is to provide a stirrer capable of performing an elliptical motion of a stirring plate by a combination of a circular motion and a vertical motion. Another object of the present invention is to provide a stirrer capable of causing an elliptical motion of a stirring plate to be driven by a common motor.
Another object of the present invention is to provide a stirrer capable of performing stirring and mixing by controlling the attitude of a stirring plate. It is another object of the present invention to provide a stirrer that can raise a lifting frame by reducing the influence of a load on the lifting frame as much as possible.

[0005]

The structure of the present invention that achieves the above object will be described as follows. A stirrer according to the present invention includes a ball for containing an object to be stirred, a stirring plate for mixing the object to be stirred in the ball, and a vertically oriented main arm rotatably supporting the stirring plate at a lower end. A main arm elliptical drive mechanism supported by a fixed system to move the main arm elliptically so that the major axis of the ellipse is in the vertical direction, and the main arm supporting the stirring plate supported by the main arm. When it is descending, it is turned downward and when it changes from descending to ascending, it rises horizontally at an appropriate speed as it ascends, and when it changes from ascending to descending, it is composed of a stirring plate scraping drive mechanism that performs driving to make it downward. ing.

In such a stirring device, when the stirring plate is lowered with the stirring plate facing downward, the stirring plate is lowered along the inner wall of the ball, and when the stirring plate is raised, the main arm passes through the center of the ball. And the main arm elliptical drive mechanism is preferably positioned. By doing so, the convection of the object to be stirred in the ball increases, and a good mixing state of the object to be stirred can be obtained.

In addition, a protruding portion may be provided at the center of the bottom of the ball, and an arc-shaped recess may be provided over the entire circumference at a portion between a vertical axis passing through the center of the protruding portion and the peripheral wall of the ball. preferable. In this way, even if the stirring plate makes an elliptical motion in the ball, the object to be stirred at the bottom center of the ball can be prevented from remaining without being stirred.

Further, the stirring device according to the present invention comprises a ball for accommodating an object to be stirred, a stirring plate for mixing the object to be stirred in the ball, and a vertical plate rotatably supporting the stirring plate at a lower end. Orientation main arm, a main arm elliptical drive mechanism that is supported by a fixed system and moves the main arm elliptically so that the major axis of the ellipse is in the vertical direction, and the stirring plate that is supported by the main arm. A stir plate scraping drive mechanism for performing a drive that is directed downward when the main arm is descending, is horizontally raised ascending from the time when it changes from descending to ascending, and is oriented downward when changing from ascending to descending, and the ball. And a ball rotating mechanism that rotates around a vertical axis.

In such a stirring device, the main arm is moved downward along the inner wall of the ball when the stirring plate is lowered with the stirring plate downward, and passes through the center of the ball when the stirring plate is raised. And the main arm elliptical drive mechanism is preferably positioned. By doing so, the convection of the object to be stirred in the ball is increased, and a good mixing state of the object to be stirred is obtained.

In this case as well, a raised portion is provided at the center of the bottom of the ball, and an arc-shaped recess is provided over the entire circumference at a portion between a vertical axis passing through the center of the raised portion and the peripheral wall of the ball. Is preferred. In this way, even if the stirring plate makes an elliptical motion in the ball, the object to be stirred at the bottom center of the ball can be prevented from remaining without being stirred.

The main arm elliptical drive mechanism used in the present invention is:
An elevating frame supported by a fixed system so as to be able to move up and down, a main arm rotating mechanism unit assembled to the elevating frame and applying a rotational force to the main arm while holding the main arm in a vertical direction; and the elevating frame And a main arm elevating mechanism for elevating the main arm.

In the main arm elliptical drive mechanism used in the present invention, an elevating frame supported by a fixed system so as to be able to move up and down, and one end of each of the vertically extending main arms is pivotally supported at intervals in the vertical direction. A drive rotary arm and a driven rotary arm having the same length, a crankshaft supported rotatably in the horizontal direction by the lift frame and fixed in a direction orthogonal to the other end of the drive rotary arm, and the lift frame A driven rotary shaft rotatably supported in a horizontal direction and fixed in a direction orthogonal to the other end of the driven rotary arm, a crankshaft drive motor for rotating the crankshaft, and rotation of the crankshaft. A rotational force transmitting mechanism for transmitting a force to the driven rotary shaft, and one end connected to a crankpin of the crankshaft and the other end supported by a fixed system, the rotational force of the crankpin being Wherein the utilized is composed of a suspension arm lifting the lifting frame.

The agitating plate scraping drive mechanism used in the present invention includes a hydraulic cylinder supported by the main arm, a joint shaft driven up and down by the hydraulic cylinder, a lower end of the joint shaft and the agitating plate. And a link arm pivotally connected at a position distant from the center of rotation.

Further, the agitating device according to the present invention is characterized in that it has a spring that receives a part of the load on the lifting frame and assists the lifting of the lifting frame.

[0015]

In the agitating device according to the present invention, the long axis of the agitating plate for agitating and mixing the agitated object in the ball accommodating the agitated object is vertically moved by the main arm elliptical drive mechanism via the main arm. While the elliptical motion is performed as described above, the stirring plate is moved downward when the main arm is lowered by the stirring plate scraping drive mechanism. Drive.

When the object to be stirred is lifted up from the bottom with the stirring plate and stirred as described above, the object to be stirred can be stirred and mixed by a movement similar to the movement of the hand even by using a machine.
The convection of the object to be stirred in the ball increases, and a good mixing state of the object to be stirred can be obtained. In addition, in this case, when the stirring plate is lowered, the resistance received from the powder can be reduced because the stirring plate is directed downward.

Further, in the stirring device according to the present invention, a long axis is vertically set by a main arm elliptical drive mechanism via a main arm, with a stirring plate for stirring the object to be stirred in a ball for accommodating the object to be stirred. While the elliptical motion is performed as described above, the stirring plate is moved downward when the main arm is lowered by the stirring plate scraping drive mechanism. And the ball is rotated about a vertical axis by a ball rotating mechanism.

When the object to be stirred is lifted up from the bottom with the stirring plate and stirred as described above, the object to be stirred can be stirred and mixed in the same motion as the hand even by using a machine.
The convection of the object to be stirred in the ball increases, and the stirring can be performed while changing the stirring position of the ball in the circumferential direction, so that a good mixing state of the object to be stirred can be obtained. In addition, in this case, when the stirring plate is lowered, the resistance received from the powder can be reduced because the stirring plate is directed downward.

The main arm elliptical drive mechanism is provided with a lifting frame supported by a fixed system so as to be able to move up and down, and a rotational force is applied to the main arm while being assembled to the lifting frame and holding the main arm vertically. When the main arm rotating mechanism and the main arm elevating mechanism that is assembled to the elevating frame and elevates the main arm are configured, the elliptical motion of the stirring plate can be performed by a combination of the circular motion and the vertical motion. it can. Therefore, it is possible to easily cope with a change in the diameter of the ball by changing the rotation radius of the main arm rotation mechanism. Further, by changing the range of elevation of the main arm elevating mechanism, it is possible to easily cope with a change in the depth of the ball.

Further, the main arm elliptical drive mechanism is provided with a lifting frame supported by a fixed system so as to be able to move up and down, and a length of which one end is pivotally supported at an interval in the vertical direction of the main arm in a vertical direction. An equal drive rotary arm and a driven rotary arm, a crankshaft supported rotatably in the horizontal direction by the lift frame and fixed in a direction orthogonal to the other end of the drive rotary arm, and a horizontal direction to the lift frame. A driven rotation shaft rotatably supported and fixed in a direction orthogonal to the other end of the driven rotation arm, a crankshaft drive motor for rotating the crankshaft, and a rotational force of the crankshaft. A rotating force transmitting mechanism for transmitting the torque to the driven rotary shaft, and one end connected to the crankpin of the crankshaft and the other end supported by a fixed system. When configured with a hanging arm lifting the lifting frame, it is possible to perform the elliptical motion of the stir plate, which consist of a combination of vertical motion and circular motion by driving the common motor. Further, by changing the lengths of the driving rotary arm and the driven rotary arm, it is possible to easily cope with a change in the diameter of the ball. Further, by changing the length of the crank arm portion of the crankshaft, it is possible to easily cope with a change in the depth of the ball.

[0021] A stirring plate scraping drive mechanism includes a fluid pressure cylinder supported by the main arm, a joint shaft driven up and down by the fluid pressure cylinder, and a lower end of the joint shaft and a center of rotation of the stirring plate. With the link arm pivotally connected at the position, the scraping operation during the elliptical movement of the stirring plate can be performed at an appropriate timing.

When the agitating device is provided with a spring which receives a part of the load on the lifting frame and assists the lifting of the lifting frame, the lifting of the lifting frame is affected by the load on the lifting frame as much as possible. Can be reduced.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the stirring device according to the present invention will be described below in detail with reference to FIGS. The stirrer according to the present embodiment includes a base 1 on which a ball 2 for accommodating an object to be stirred is installed. The ball 2 has a raised portion 2a at the bottom center. The ball 2
An arc-shaped depression 2b is provided over the entire circumference at the portion between the vertical axis 3 passing through the center of the raised portion 2a and the peripheral wall of the ball 2 at the bottom of the ball. The ball 2 is driven to rotate around the axis 3 by a ball rotating mechanism 4. The ball rotating mechanism 4 includes a ring-shaped gear 5 provided on the outer periphery of the ball 2, a plurality of gears 6 meshing with the gear 5 around the ball 2, and rotating one of the gears 6. And a motor 7 for driving the ball 2 to rotate about the axis 3.

A stirring plate 8 for mixing the object to be stirred therein is inserted into the ball 2.
The stirring plate 8 is rotatably attached to a lower end of a vertically oriented main arm 9 by a pivot 10.

A main arm elliptical drive mechanism 12 for moving the main arm 9 in an elliptical manner so that the major axis of the ellipse is in the vertical direction is attached to the body frame 11 as a fixed system erected on the base 1. ing. In addition, the main arm 9 has the stirring plate 8 turned downward when the main arm 9 is descending. The stirring plate 8 is raised horizontally at an appropriate speed as it rises from the time it changes from descending to ascending, and downward when it changes from ascending to descending. An agitating plate scraping drive mechanism 13 for performing the following drive is assembled.

The main arm elliptical drive mechanism 12 is a vertically movable frame 14 supported in a body frame 11 as a fixed system, and is mounted on the vertically movable frame 14 to hold the main arm 9 vertically. The main arm 9
And a main arm lifting / lowering mechanism 16 mounted on the lifting frame 14 to move the main arm 9 up and down.

The main arm rotating mechanism 15 has one end at one end of the pivot shaft 1 at an interval in the vertical direction of the vertically oriented main arm 9.
The drive rotary arm 19 and the driven rotary arm 20 having the same length, which are pivotally supported at 7, 18;
And a crankshaft 21 as a drive shaft fixed to the other end of the driven rotary arm 20 in a direction orthogonal to the other end of the driven rotary arm 20. A driven rotary shaft 22, a crankshaft drive motor 26 for rotating the crankshaft 21 via a V pulley 23, a V belt 24, and a V pulley 25, and a drive gear 27, an intermediate gear 28, And a torque transmitting mechanism 30 that transmits the torque to the driven rotary shaft 22 via the driven gear 29. The intermediate gear 28 is rotatably supported by a shaft 31 horizontally mounted on the lifting frame 14.

The main arm lifting / lowering mechanism 16 includes the crankshaft 2
A crank arm 21a connected in a direction orthogonal to each end of the cut-off portion 1;
a are connected in a direction orthogonal to each other and the crankshaft 2
1, a pair of brackets 32 projecting downward from the ceiling of the fixed body frame 11, a support shaft 33 connecting the lower ends of the brackets 32, and one end. The suspension arm 34 is formed by a connecting rod connected to the crank pin 21b at the rotation connection portion 34a and connected at the other end by the rotation connection portion 34b. In this case, the positional relationship between the drive rotary arm 19 and the driven rotary arm 20 is determined so that the crank arm 21a faces downward when the crank arm 21a faces downward.

The elevating frame 14 is mounted on the side of the elevating frame 14 in a horizontal direction, and is slidably fitted on the guide shaft 35. The guide body 36 moves up and down. A spring 37 that receives a part of the load on the lifting frame 14 and assists the lifting of the lifting frame 14 is fitted around the lower periphery of the guide shaft 35.

The stirring plate scraping drive mechanism 13 includes an air cylinder 38 as a fluid pressure cylinder supported by the main arm 9, a joint shaft 39 driven up and down by the air cylinder 38, and a lower end of the joint shaft 39. A link arm 40 pivotally connected at a position distant from the pivot 10 as a rotation center of the stirring plate 8. The body frame 11 is provided with a control panel 41 for controlling the operation of the stirring device and the like.

In such a stirring device, the main arm elliptical drive mechanism 12 is positioned so that when the stirring plate 8 is lowered, it descends along the inner wall of the ball 2, and ascends through the center of the ball 2. .

Next, the operation of such a stirring device will be described. In the stirring device, when the crankshaft drive motor 26 is driven, its rotational force is transmitted to the crankshaft 21 via the V pulley 25, the V belt 24, and the V pulley 23, and the crankshaft 21 is driven to rotate. The rotation of the crankshaft 21 is transmitted to the driven rotation shaft 22 via the driving gear 27, the intermediate gear 28, and the driven gear 29, and the driven rotation shaft 2
2 is also driven to rotate in synchronization with the crankshaft 21.
By the synchronous rotation of the crankshaft 21 and the driven rotary shaft 22, the drive rotary arm 19 and the driven rotary arm 20 are rotated synchronously, and the drive rotary arm 19 and the driven rotary arm 20 are held with the main arm 9 held vertically. Is driven to rotate with the length of the rotation radius.

Further, the rotation of the crankshaft 21 causes the crankpin 21b to rotate concentrically with the rotation of the crankshaft 21, so that the crankshaft 21 is supported and only the vertical movement is achieved by the guide shaft 35 and the guide body 36. The lifting frame 14, which is restricted so that it cannot be moved, is raised and lowered with a stroke twice as long as the length of the crank arm 21a.

The trajectory 42 of the pivot shaft 10 at the lower end of the main arm 9 as a combined motion of these rotational motion and vertical motion is shown in FIG.
The ellipse has a major axis in the vertical direction as shown in FIG. Therefore, the stirring plate 8 pivotally supported by the pivot 10 at the lower end of the main arm 9 also makes an elliptical motion within the ball 2.

At this time, the stirring plate 8 is turned downward by the operation of the air cylinder 38 of the stirring plate scraping drive mechanism 13 when the main arm 9 is lowered as shown in FIGS. 4 and 5, as it rises horizontally at a moderate speed, it becomes horizontal at almost the center of the vertical stroke, and when it changes from rising to falling. Is driven downward as shown in FIGS. 4, 6, and 7. In FIG. 4, reference numeral 43 denotes the trajectory of the tip of the stirring plate 8 at this time. As described above, the stirring plate 8 is directed downward when it is descending, so that the resistance from the object to be stirred can be reduced. In addition, when the stirring plate 8 is turned horizontally, the object to be stirred can be scraped upward from below. it can. Therefore, the object to be stirred in the ball 2 can be stirred and mixed with a large convection by the movement similar to the movement of the hand.

Also, a raised portion 2 is provided at the center of the bottom of the ball 2.
is provided, and an arc-shaped depression 2b is provided over the entire circumference at a portion between the vertical axis 3 passing through the center of the raised portion 2a and the peripheral wall of the ball 2, so that the stirring plate 8 Even if the ball 2 makes an elliptical motion, it is possible to prevent the object to be stirred at the bottom center of the ball 2 from remaining without being stirred.

As the scraping operation of the stirring plate 8 as described above is performed for approximately one cycle, the ball 2 is gradually rotated around the axis 3 by the rotation of the motor 7 of the ball rotating mechanism 4 so that the ball 2 The position of the material to be stirred inside is changed in the circumferential direction. Therefore, the objects to be stirred in the ball 2 can be uniformly mixed over the entire circumference. For this reason, the stirring operation of the stirring plate 8 similar to that of the finger enables the stirring and mixing of the objects to be stirred to be performed well and to mix them together. In some cases, soft, fine-grained dough without fluff can be produced.

The crankshaft 21 has a V pulley 23,
The belt 24 and the V-pulley 25 can be omitted and the motor can be driven directly by the crankshaft drive motor 26. Further, the crankshaft 21 may be a mere drive shaft, and the main arm lifting / lowering mechanism 16 may be constituted by a fluid pressure cylinder such as an air cylinder.

[0039]

As described above, according to the present invention, the following excellent effects can be obtained. The stirrer according to the present invention is configured such that, in a ball accommodating an object to be stirred, a stirring plate for stirring and mixing the object to be stirred is arranged such that the major axis thereof is directed vertically by a main arm elliptical drive mechanism via a main arm. While the elliptical movement is being performed, the stirring plate is driven downward by the stirring plate scraping drive mechanism when the main arm is lowered, and is raised horizontally when the main arm is changed from descent to ascending, and is lowered when changed from ascending to descent. As a result, the object to be stirred in the ball can be stirred up from the bottom with a stirring plate and mixed, and even if a machine is used, the object to be stirred can be stirred with the same movement as the hand. In addition, the convection of the object to be stirred in the ball is increased, and a good mixing state of the object to be stirred can be obtained. Further, according to the present invention, when the stirring plate is lowered, the stirring plate is directed downward, so that the insertion can be performed with a small resistance received from the object to be stirred, so that the workability is good.

Further, in the stirring apparatus according to the present invention, in a ball for accommodating the object to be stirred, a stirring plate for stirring the object to be stirred is moved vertically by a main arm elliptical drive mechanism via a main arm. While performing the elliptical motion, the stirring plate is lowered by the stirring plate scraping drive mechanism when the main arm is lowered, and is raised horizontally as the ascending is changed from descent to ascending, and is ascended downward as the ascending is changed from ascending to descent. The ball is rotated around a vertical axis by a ball rotating mechanism, so that even if a machine is used, the object in the ball can be agitated in a motion similar to the motion of the hand. The convection of the object to be stirred becomes large, and the ball is stirred while changing the mixing position in the circumferential direction, so that the whole can be mixed evenly and the ball can be stirred. It is possible to obtain a good mixing condition of. Also, in the present invention, when the stirring plate is lowered, the stirring plate is directed downward, so that the insertion can be performed with a small resistance received from the object to be stirred, so that the workability is good.

Further, according to the present invention, the main arm elliptical drive mechanism is provided with a lifting frame supported by a fixed system so as to be able to move up and down, and a state in which the main arm is attached to the lifting frame and the main arm is held vertically. And the main arm elevating mechanism that is assembled to the elevating frame and moves up and down the main arm. Can be performed in combination with
Therefore, by changing the radius of rotation of the main arm rotation mechanism,
It is possible to easily cope with a change in the diameter of the ball.
Further, by changing the range of elevation of the main arm elevating mechanism, it is possible to easily cope with a change in the depth of the ball.

Further, in the present invention, the main arm elliptical drive mechanism is pivotally supported at one end with a vertical space between the vertically moving main arm and a vertically movable frame supported by a fixed system. A drive rotary arm and a driven rotary arm having the same length, a crankshaft supported rotatably in the horizontal direction by the lift frame and fixed in a direction orthogonal to the other end of the drive rotary arm, and the lift frame A driven rotary shaft rotatably supported in a horizontal direction and fixed in a direction orthogonal to the other end of the driven rotary arm, a crankshaft drive motor for rotating the crankshaft, and rotation of the crankshaft. A rotating force transmitting mechanism for transmitting a force to the driven rotating shaft, one end of which is connected to a crankpin of the crankshaft, and the other end of which is supported by a fixed system to transmit the rotating force of the crankpin; Since then use is constituted by a hanging arm lifting the lifting frame, it is possible to perform the elliptical motion of the stir plate, which consist of a combination of vertical motion and circular motion by driving the common motor. Further, by changing the lengths of the driving rotary arm and the driven rotary arm, it is possible to easily cope with a change in the diameter of the ball. Further, by changing the length of the crank arm portion of the crankshaft, it is possible to easily cope with a change in the depth of the ball.

Also, in the present invention, the stirring plate scraping drive mechanism includes a fluid pressure cylinder supported on the main arm,
Since the fluid pressure cylinder comprises a joint shaft driven up and down, and a lower end of the joint shaft and a link arm pivotally connected at a position distant from the rotation center of the stirring plate, the stirring plate has an elliptical shape. The scraping operation during the exercise can be performed at an appropriate timing.

Further, since the agitating device of the present invention is provided with a spring which receives a part of the load on the lifting frame and assists the lifting of the lifting frame, the lifting of the lifting frame is affected by the load on the lifting frame. Can be reduced as much as possible.

[Brief description of the drawings]

FIG. 1 is a partially omitted perspective view of an embodiment of a stirring device according to the present invention.

FIG. 2 is a partial longitudinal front view of the stirring device of the present embodiment.

FIG. 3 is a longitudinal sectional view showing an upper configuration of the stirring device of the present embodiment.

FIG. 4 is an explanatory diagram showing an operation of a stirring plate in the stirring device of the present embodiment.

FIG. 5 is a partially longitudinal front view showing an operation state when the stirring plate is lowered in the stirring device of the present embodiment.

FIG. 6 is a partially longitudinal front view showing an operation state in which the stirring plate is being lifted by the stirring device of the present embodiment.

FIG. 7 is a partially longitudinal front view showing an operation state when the stirring plate is lowered in the stirring device of the present embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 base base 2 ball 2a raised portion 2b arc-shaped recessed portion 3 axis 4 ball rotating mechanism 5, 6 gear 7 motor 8 stirring plate 9 main arm 10 pivot shaft 11 body frame 12 main arm elliptical drive mechanism 13 scraping plate Driving mechanism 14 Elevating frame 15 Main arm rotating mechanism 16 Main arm elevating mechanism 17, 18 Pivot shaft 19 Drive rotating arm 20 Followed rotating arm 21 Crank shaft 21a Crank arm 21b Crank pin 22 Followed rotating shaft 23 V pulley 24 V belt Reference Signs List 25 V pulley 26 Crankshaft drive motor 27 Drive gear for rotating torque 28 Intermediate gear 29 Follower gear 30 Rotational force transmitting mechanism 31 Shaft 32 Bracket 33 Support shaft 34 Suspension arm 34a, 34b Rotary connecting portion 35 Guide shaft 36 Guide body 37 Spring 38 Air cylinder 39 joint shaft 40 link arm 41 control panel

Claims (6)

(57) [Claims] A ball accommodating an object to be stirred, a stirring plate for mixing the object to be stirred in the ball, a vertically oriented main arm rotatably supporting the stirring plate at a lower end, A main arm elliptical drive mechanism that is supported by the system and moves the main arm elliptically so that the major axis of the ellipse is in the vertical direction, and the main arm that is supported by the main arm and lowers the stirring plate A stirrer having a stir plate scraping drive mechanism for performing a horizontal drive at an appropriate speed as the ascent rises from the time of change from descending to ascending, and a downward drive when changing from ascending to descending. . 2. A ball for accommodating an object to be stirred, a stirring plate for mixing the object to be stirred in the ball, a vertically oriented main arm rotatably supporting the stirring plate at a lower end, and fixed. A main arm elliptical drive mechanism that is supported by the system and moves the main arm elliptically so that the major axis of the ellipse is in the vertical direction, and the main arm that is supported by the main arm and lowers the stirring plate A stir plate scraping drive mechanism that performs a drive that is downward when it is down and changes from rising to falling and rises horizontally as it rises and changes downward from rising to falling, and the ball around a vertical axis A stirrer comprising a ball rotating mechanism for rotating. 3. The main arm elliptical drive mechanism includes a lifting frame supported by a fixed system so as to be able to move up and down, and a main frame mounted on the lifting frame to rotate the main arm while holding the main arm in a vertical direction. The main arm rotating mechanism for applying a force, and a main arm elevating mechanism assembled to the elevating frame and elevating the main arm, wherein the main arm rotating mechanism is configured to elevate and lower the main arm. Stirrer. 4. The main arm elliptical drive mechanism includes a lifting frame supported by a fixed system so as to be able to move up and down, and a length in which one end is pivotally supported at intervals in the vertical direction of the main arm. A driving rotary arm and a driven rotary arm having the same length, a crankshaft supported rotatably in a horizontal direction on the lifting frame and fixed in a direction orthogonal to the other end of the driving rotary arm; A driven rotation shaft that is rotatably supported in the direction and is fixed in a direction orthogonal to the other end of the driven rotation arm, a crankshaft drive motor that rotationally drives the crankshaft, and a rotational force of the crankshaft. A rotational force transmitting mechanism for transmitting to the driven rotary shaft, and one end connected to a crankpin of the crankshaft and the other end supported by a fixed system, and utilizing the rotational force of the crankpin, The stirrer according to claim 1, wherein the stirrer includes a suspension arm that raises and lowers the lifting frame. 5. The drive mechanism for scraping up a stirring plate,
A hydraulic cylinder supported by the main arm, a joint shaft driven up and down by the hydraulic cylinder, and a link arm pivotally connected to a lower end of the joint shaft and away from the rotation center of the stirring plate The stirrer according to any one of claims 1 to 4, wherein the stirrer comprises: 6. The stirrer according to claim 4, further comprising a spring that receives a part of the load on the lifting frame and assists the lifting of the lifting frame.