KR200351063Y1 - Rotation Type Pulverizer - Google Patents

Abstract

The present invention relates to a rotary grinding device, to minimize the noise pollution generated during grinding, such as grains, red pepper powder, etc., and to efficiently grind the grinding environment, and to prevent the work to be scattered outside. It is an object of the present invention to provide a rotary crushing device that can be simplified and downsized so that the structure can be easily used without any restrictions on the installation space in any place.

In order to achieve the above object, the present invention, the base 10, the power transmission means is built-in, the rotating plate 20 is installed on the upper surface to be rotatable by the power transmission means, and the mortar provided on the upper surface of the rotating plate 30 and a mortar plate 40 having a receiving portion inclined at a predetermined angle so as to be placed in the center of the mortar to receive the object to be crushed, and perpendicular to the upper surface of the base at a predetermined distance from the mortar The mortar is installed in the support 50, the mortar is connected to the support by a chain mortar is inclined at a predetermined angle to the receiving portion of the mortar plate 70 and the stirring is disposed on the upper surface of the mortar plate It characterized in that it comprises a spatula (80).

Description

Rotary Type Pulverizer

The present invention relates to a rotary grinding device, and more particularly, by effectively combining the function of mortar and millstone, effectively grinding the grinding materials, such as grains, red pepper powder, chemicals, etc. while minimizing noise pollution generated during grinding In addition, it is possible to improve the working environment so that the particles are not scattered out, and the rotary crushing can be simplified and downsized so that it can be easily installed at any place without being restricted by the installation space. Relates to a device.

In general, as a grinding device for grinding the milled products such as grains, red pepper powder and the like, there have been traditional tools such as mortar and millstone. The mortar is to grind or grind the grinding object in a repetitive operation of putting the grinding object in the mortar and lowering it up and down using a mortar ball. The grind | pulverized object is grind | pulverized by the frictional force between the upper and lower millstones by placing a grind | pulverized object into the hole formed in the upper millstone, and turning a knob.

However, since these mortars and millstones are made by hand, not only a lot of force is required but also a lot of work time, and in particular, a large amount of noise pollution occurs during the grinding of the milled material, as well as the milled or ground material. There was a disadvantage, such as dirty to the outside as it scatters around.

In order to make up for the shortcomings of these traditional tools, an automatic grinding device using a motor has been developed for a long time and has been widely used in real life.

As an example, Utility Model Publication No. 1989-7575 has a shaft in which a mortar ball is attached and lifted so as to automatically grind grains in the mortar by a natural fall after moving the mortar ball upward by the driving force of the motor. There is disclosed a configuration in which a locking pin is attached to a shaft and fixedly installs two rotary shafts adjacent to the shaft, and fixedly installs gears at both ends of the two rotary shafts and connects them by a chain. . In addition, Utility Model Registration No. 302023, the mortar ball is moved upward by the rotary blades rotated by a motor to automatically grind grains in the mortar by natural fall, but provided with a separate stopper bar (Stopper Bar) By the electronic control to stop the fall of the mortar ball is disclosed a configuration that can prevent damage or safety accident of the device due to the carelessness of the operator.

Such prior arts have the advantage of being able to simply grind the object to be ground by electric drive and mechanical control, but there are the following problems.

First, not only the number of parts required for raising and lowering the mortar ball to the mortar, but also the control system is complicated, the size of the device is inevitably large, and there is a problem in that the installation space is limited.

Secondly, as the mortar is configured to drop vertically, there is a problem of severe noise pollution when grinding grains by its own weight, and the ground matter is splashed out of the mortar and scattered to the surroundings, thereby inhibiting the surrounding environment. There was a problem letting.

Third, in order to efficiently crush the object to be crushed, the dropping force of the mortar should be increased, so the power consumption is large, and if the dropping force is increased, the noise is generated in the mortar and the surrounding parts, and thus noise pollution is further increased. There was a problem to increase.

Fourth, even if the ground to be crushed by automatic control, in order to grind the ground evenly, there is a problem in the work because the operator has to separately intermix the pulverized matter in the middle.

Accordingly, there has been a demand for a pulverization apparatus that can improve the working environment while minimizing noise pollution due to crushing operations by a simpler operation and mechanical driving method.

Therefore, the present invention has been made to solve the above-mentioned problems, and to minimize the noise pollution generated during grinding, such as grains, red pepper powder, chemicals, etc., while efficiently crushing, It is an object of the present invention to improve the working environment so that the pulverized material does not scatter out and to provide a rotary pulverizing device that can simplify the structure and miniaturize it so that it can be easily installed at any place without being constrained by the installation space. .

1 is a perspective view showing a rotary grinding device according to the present invention, wherein a mortar is placed in a mortar.

Figure 2 is a perspective view of a rotary grinding device according to the present invention, the mortar is disposed outside the mortar.

Figure 3 is a front sectional view of the rotary grinding device according to the present invention.

4 is an enlarged cross-sectional view of a portion A in FIG. 3.

Figure 5 is a partial plan view schematically showing the main part of the rotary grinding device according to the present invention.

** Explanation of symbols for main parts of the drawing **

10: expect

15: axis of rotation

16: On / Off switch section

20: rotating plate

30: mortar

40: mortar

50: mortar ball support

60: Chain

70: mortar

80: stirring spatula

90: first connecting portion

94: first fixed valve

95: second fixed valve

100: second connection portion

110: Holder

In order to achieve the above object, the rotary grinding device according to the present invention, the through-hole is formed on one side, has an internal space therein, a drive motor for power transmission to the inner space, and rotatable to the drive motor A drive pulley installed in a stable manner, a driven pulley connected by a belt to the drive pulley, and a rotating shaft rotatably connected to a center of the driven pulley, and having an on / off switch part installed on an outer surface to apply power to the drive motor. Wow;

A rotating plate coupled to an end of the rotating shaft to protrude through the through hole so as to rotate in a rotational direction of the rotating shaft;

A mortar passage installed on an upper surface of the rotating plate so as to rotate in a rotational direction of the rotating plate and having a space therein;

The outer peripheral surface is seated inside the space of the mortar to be rotated together with the mortar, and the outer circumferential surface is bonded by the inner circumferential surface of the mortar and the adhesive means, and has a predetermined depth to receive the pulverized object in the center and at a θ1 angle relative to the rotation axis. A mortar having a receiving portion having an inclined inclined surface;

A mortar ball vertically installed on the other side of the base at a predetermined distance from the mortar barrel;

Θ2 smaller than θ1 angle with respect to the axis of rotation to the receiving portion of the mortar plate so that the mortar has a support rod connected to the support part by a chain and is rotated in an inclined state according to the rotation of the mortar plate. Mortar ball is inclined at an angle;

A stirring spatula, the mortar being coupled to a connecting means detachably connected to the upper end of the support part and disposed on an upper surface of the mortarboard;

Characterized in that it comprises a.

In addition, in the present invention, the rotating plate, the inner space of the base through a circular rotary blade portion extending horizontally outwardly with a predetermined interval with the upper surface of the base, and through the hole of the base in the center of the rotary blade portion Characterized in that the concave portion having a predetermined depth so as to be stored up to a predetermined depth in which the bottom surface is integrally formed on the rotating shaft.

In addition, in the present invention, the bottom surface of the mortar plate is formed of a structure having a flat portion in contact with the rotary blade portion of the rotating plate and the protrusion inserted into the concave portion through the open bottom surface of the mortar. It is characterized by.

The angle θ1 is approximately 45 °.

The angle θ2 is approximately 15 °.

In addition, according to the present invention, a ring-shaped holder for storing the mortar may be installed at a predetermined portion of the mortar.

In addition, in the present invention, the mortar and the mortar is characterized in that formed of the same material as the millstone.

Further, in the present invention, the supporting rod of the mortar has a structure in which a lower end thereof is inserted into and fixed to an opening formed in the center of the mortar, and a groove is formed along the outer circumferential surface at the upper end thereof. Characterized in that the ball bearing is integrally formed with a connecting ring piece connected to the chain.

In addition, in the present invention, the connecting means, the one side is open so that the mortar hole is coupled to the upper outer peripheral surface of the support portion in the form of the mortar wrapped around the upper end of the support portion has a coupling piece protruding outwards respectively facing each other A ring-shaped first coupling portion, a horizontal extension portion formed integrally with the other side of the first coupling portion extending horizontally from the first coupling portion, and a tubular shape integrally formed in a vertical direction to be perpendicular to the end of the horizontal extension portion A first connecting portion having a second joining portion thereof; It is characterized in that it comprises a second connecting portion inserted into the second coupling portion disposed on the upper surface side of the mortar.

In addition, according to the present invention, a first coupling hole is formed in the coupling piece of the first coupling portion, and a wave portion bent to the end of the bolt portion and the bolt portion inserted into the first coupling hole and fastened by tightening. It is characterized in that the first fixing valve made of a handle for supporting.

In addition, in the present invention, a second coupling hole is formed on one side of the second coupling portion, and the second coupling portion is inserted into the second coupling hole and the end is in close contact with the outer surface of the second coupling portion by tightening. It characterized in that the second fixing valve consisting of a bolt portion for fixing the handle portion for holding and bending bent to the end of the bolt portion.

In addition, in the present invention, the stirring spatula has a fitting hole fitted to the lower portion of the second connection portion on one side, and the other side is formed in a flat rectangular structure, the first fixed valve and the second Characterized in that the direction is changed according to the adjustment of the fixed valve.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail.

1 and 2 show a rotary grinding device according to the present invention, Figure 1 is a perspective view of the mortar is disposed in the mortar, Figure 2 is a perspective view of the mortar is disposed outside the mortar, Figure 3 , Is a front sectional view of a rotary grinding device according to the present invention.

As shown in Figures 1 to 3, the rotary grinding device according to the present invention, the rectangular base 10, the power transmission means is built-in, the upper surface of the base 10 to be rotatable by the power transmission means The rotating plate 20 installed, the mortar 30 is installed on the upper surface of the rotating plate 20 to be rotated in the rotation direction of the rotating plate 20, and the inside of the mortar 30 so as to rotate together with the mortar 30 A mortar plate 40 having a receiving portion 41 which is seated and inclined at a predetermined angle to receive the pulverized object in the center, and an upper surface of the base 10 at a predetermined distance from the outer surface of the mortar 30. The mortar is installed vertically to the support 50 and the mortar is connected to the support 50 by a chain 60 so that the mortar plate 40 to be rotated in a time-lapse state by the rotation of the mortar (40) Disposed to be inclined at a predetermined angle to the receiving portion 41 of the The ball is composed of 70.

The power transmission means includes a drive motor 11, a drive pulley 12 rotatably installed on the drive motor 11, and a driven pulley 14 connected to the drive pulley 12 by a belt 13. And a rotating shaft 15 rotatably connected to the center of the driven pulley 14, and an on / off switch unit 16 for applying power to the driving motor 11. As shown in FIG. 1, the on / off switch unit 16 is provided at one side of the front side of the base 10.

On one side of the upper surface of the base 10, a through hole is formed so that the bottom surface of the rotating plate 20 can be installed in combination with the rotating shaft 15.

The rotating plate 20 has a circular rotary blade portion 21 extending horizontally outwardly with a predetermined interval with the upper surface of the base 10, and corresponds to the through hole in the central portion of the rotary blade portion 21 It has a cap-shaped structure having a concave portion 22 having an outer diameter and a predetermined depth. Preferably, the rotating shaft 15 is integrally coupled to the center of the bottom surface of the recess 22 of the rotating plate 20. The rotating plate 20 configured as described above accommodates the concave portion 22 to a predetermined depth within the base 10 through the through hole of the base 10, and the rotary blade portion 21 and the base 10 of the base 10 are accommodated. It is provided on the upper surface of the base 10 while maintaining a predetermined interval between the upper surfaces.

The mortar 30 provided on the upper surface of the rotating plate 20 is made of a metal material such as stainless steel, and has a cylindrical structure in which the bottom surface is completely opened with a space S therein. In the space (S), the mortar plate 40 is provided with a receiving portion 41 having a predetermined depth so as to accommodate the milled products, such as grains, red pepper powder, medicines.

The mortar plate 40 is made of the same material as a conventional millstone, the bottom surface of which is inserted into the concave portion 22 corresponding to the shape of the rotating plate 20, and of the rotating plate 20 It has a structure which has the flat part 43 which is surface-contacted with the rotary blade part 21, and adheres on the said rotating plate 20 by self weight. It is preferable that the height of the mortar plate 40 is set smaller than the height of the mortar 30 so that the ground to be thrown out of the mortar 30 during the pulverization of the pulverized object. In addition, when the mortar plate 40 is installed in the space S of the mortar 30, the outer circumferential surface of the mortar board 40 is not spaced so as not to flow in the space S of the mortar 30. It is preferable to adhere | attach firmly by the adhesion means, such as an inner peripheral surface of the part S, and bonds.

The mortar 30 and mortar plate 40 having such a structure is rotated together in accordance with the rotation of the rotating plate 20 disposed below. In particular, the receiving portion 41 of the mortar plate 40, as shown in Figure 3 so that the object to be easily collected by the rotational force of the mortar plate 40 in accordance with the rotation of the rotating plate 20 to the center of the bottom surface, As described above, the inclined surface 41a is inclined at an angle θ1 toward the flat upper surface of the receiving portion 41 with respect to the rotation axis 15. It is preferable that the said (theta) 1 angle is about 45 degrees.

The mortar 70 is formed of the same material as the mortar plate 40, and has a tapered conical structure toward the bottom surface, and rotates in an inclined state according to the rotation of the mortar plate 40. While being placed inclined at an angle θ2 smaller than the θ1 angle with respect to the rotation axis 15 so as to evenly grind the object to be received into the receiving portion 41 of the mortar plate 40. It is preferable that the said (theta) 2 angle is about 15 degrees.

In order to maintain the inclined state by arranging the mortar 70 at the inclination angle as described above, by combining the metal support rod 71 on the upper mortar 70, as described above, the support rod 71 It is preferable that the mortar and the support 50 is firmly connected to the chain (60).

Here, in order to couple the support rod 71 to the upper mortar 70, the mortar has a support hole having a predetermined depth in the center of the upper surface of the 70, to the support hole of the support rod 71 It is preferable that the lower end is inserted and fixed by the fixing plate 72.

The fixing plate 72 is a cap-shaped structure of a synthetic resin material, and has a through hole formed to be inserted from an upper end of the supporting rod 71, and is fixed to the outer surface of the supporting rod 71 to be firmly fixed by a screw or the like. It consists of a fixing piece (72a) and a second fixing piece (72b) extending from the lower end of the first fixing piece (72a) is bonded to the upper surface of the mortar (70) by an adhesive means.

As is clearly shown in Figure 4, the upper end of the support rod 71, a groove is formed along the outer circumferential surface, the groove is a ball bearing integrally formed with a connecting ring piece 73 connected to the chain 60 74 is inserted.

The mortar board 40 and the mortar ball 70 is configured in this way, while taking the mortar structure, which is a conventional tool, the mortar ball 70 is rotated according to the rotation of the mortar board 40 similarly to the grinding principle of millstone. While being rotated together, finely pulverized material is pulverized by the frictional force between the inclined surface 41a of the receiving portion 41 of the mortar plate 40 and the inclined surface 70a of the mortar hole 70. By pulverizing the object to be ground by such a rotation method, it is possible to significantly reduce the noise pollution caused by the mortar ball repeatedly to crush or grind the object as in the prior art.

On the other hand, on the flat upper surface of the mortar 40, a stirring spatula 80, which functions to agitate the object to be agitated so as not to be biased to one side during the grinding of the object, is disposed.

The stirring spatula 80, the mortar is coupled by a connecting means connected to the upper end of the support (50).

The connecting means is provided with a first connecting portion 90 in which the mortar is connected in a horizontal direction from the side of the support 50 to the mortar 30, the end of the first connecting portion 90, the mortar ( 30 is provided with a second connecting portion 100 connected in a vertical direction to the end of the first connecting portion 90 to be disposed vertically.

As shown in FIG. 2, the first connection part 90 has one side surface open such that the mortar hole is coupled to the upper outer circumferential surface of the support part 50 so that the mortar hole surrounds the upper outer circumferential surface of the support part 50. A ring-shaped first engaging portion 91 having coupling pieces 91a and 91b projecting outwardly and facing outwardly, and integrally formed on the other side of the first engaging portion 91 so as to form the first engaging portion 91. A horizontal extension portion 92 extending horizontally from the horizontal extension portion, and formed in a vertical direction at a right angle with an end portion of the horizontal extension portion 92 so as to be coupled in a state accommodating the second connection portion 100. It consists of the 2nd engaging part 93 of the.

Coupling holes are formed in the coupling pieces 91a and 91b of the first coupling part 91, respectively, and the coupling parts are secured to the first coupling part 91 so that the mortar can be firmly fixed to the support part 50. The first fixing valve 94 is installed through the ball. The first fixed valve 94 is composed of a bolt portion 94a inserted into the coupling hole and fastened by tightening, and a grip portion 94b bendingly coupled to an end of the bolt portion 94a. . This first fixing valve 94, as well as the role of fixing the first coupling portion 91 of the first connecting portion 90 to the support 50, the bolt portion 94a In accordance with the loosening and tightening also serves to adjust the horizontal extension portion 92 of the first connecting portion 90 in the front and rear direction, that is, the front and rear direction toward the receiving portion 41 of the mortar (40). 5)

Similarly, a coupling hole is formed at one side of the second coupling part 93, and through the second coupling hole to firmly fix the second connection part 100 to the second coupling part 93. A second fixing valve 95 is provided, and the second fixing valve 95 is inserted into the coupling hole and the end thereof is in close contact with the outer surface of the second connecting portion 100 by tightening. It consists of a bolt portion (95a) for fixing the 100 and the grip portion (95b) coupled to the end of the bolt portion (95a) is bent w. The second fixing valve 95 not only serves as the fixed role as described above, but also serves to adjust the position of the second connection portion 100 in the left and right directions as the bolt portion 95a is loosened and tightened. (See Figure 5).

In the connecting means configured as described above, the stirring spatula 80, as shown in Fig. 2, has a fitting hole that is fitted to the lower portion of the second connecting portion 100 on one side and the other side is a flat rectangular structure It is.

Furthermore, when the mortar is pulverized, the mortar hole is placed in the predetermined portion of the support part 40, so that the mortar ball disposed in the mortar board 40 can be taken out and stored out of the lower part of the mortar ball 70. A ring-shaped holder 110 for accommodating the outer circumferential surface is provided. 2 illustrates a state in which the mortar 70 is seated on the holder 110.

Referring to the operation of the rotary grinding device according to the present invention as described above are as follows.

First, when an operator applies the power to the drive motor 11 by operating the on / off switch 16, the drive motor 11 is driven while the drive motor 11 of the drive motor 11 The driving force is transmitted to the rotating shaft 15 by the driving belt 12 and the driven pulley 14. As a result of which the rotating shaft 15 is rotated, the rotating plate 20 coupled to the rotating shaft 15 is rotated.

As the rotary plate 20 rotates, the mortar 30 and the mortar plate 40 installed in the mortar 30 are rotated together. At this time, the pulverized material placed on the upper surface of the mortar plate 40 is collected into the receiving portion 41 by the rotational force. In this state, the mortar ball 70 inclined to the receiving portion 41 is rotated together by the rotation of the mortar 30 and the mortarboard 40, the inclined surface (41a) of the receiving portion 41 And the pulverized product sandwiched between the inclined surface 70a of the mortar 70 is crushed by the frictional force between each other.

At the time of crushing, the height of the mortar 30 is higher than the height of the receiving portion 41 of the mortar 40, so that the pulverized matter or a part of the pulverized object will not be scattered out of the mortar 30. In addition, the grinding object is pulverized by the rotational frictional force as in the principle of millstone, and thus it is possible to pulverize the grinding object evenly without generating vibration and noise pollution.

Meanwhile, in pulverizing such a pulverized object, the first and second fixed valves 94 and 95 fixedly installed at both ends of the first connection part 90 coupled to the support part 50 are properly adjusted. By setting the position of the stirring spatula 80 before the grinding operation or by changing the position appropriately during the grinding operation so that the to-be-mixed object is well mixed without being biased to one side only. It can be crushed.

When the above grinding operation is completed, turn off the power by operating the on / off switch unit 16 again, the mortar ball (70) is taken out of the receiving portion 41 of the mortar board 40, the mortar The ball is stored in the holder 110 coupled to the support 50 and the pulverized product is moved to an appropriate container.

As described above, according to the present invention, by combining the functions of mortar and millstone ideally configured to grind the milled products, such as grains, red pepper powder, medicines, etc. by rotational friction, Not only can it grind efficiently while minimizing noise pollution, but it also improves the working environment so that the particles are not scattered out during the grinding process. Furthermore, the structure is simplified so that the installation space is not restricted in any place. Can be installed.

Claims (12)

A through hole is formed at one upper side, and has an inner space therein, a drive motor 11 for power transmission in the inner space, a drive pulley 12 rotatably installed at the drive motor 11, and a drive. A driven pulley 14 connected to the pulley 12 by a belt 13 and a rotating shaft 15 rotatably connected to the center of the driven pulley 14, and supplying power to the drive motor 11. A base 10 provided with an on / off switch unit 16 on an outer surface thereof; A rotating plate 20 coupled to an end of the rotating shaft 15 so as to rotate in a rotational direction of the rotating shaft 15 and protruding through the through hole; A mortar (30) installed on an upper surface of the rotating plate (20) so as to rotate in a rotational direction of the rotating plate (20) and having a space (S) therein; It is seated inside the space S of the mortar 30 so as to rotate together with the mortar 30, and the outer circumferential surface is adhered to the inner circumferential surface of the mortar 30 by adhesive means, and a predetermined portion is accommodated in the center. A mortar plate (40) having a depth of and having a receiving portion (41) having an inclined surface (41a) inclined at an angle of? 1 with respect to the rotation axis (15); A mortar ball vertically installed at the other side of the base 10 at a predetermined interval from the mortar barrel 30 and a support 50; The mortar hole has a support rod 71 connected to the support portion 50 by the chain 60 and is rotated in an inclined state according to the rotation of the mortar plate 40, the mortar plate 40 so as to pulverize the object to be shredded A mortise hole 70 inclined at an angle of θ2 smaller than the θ1 angle with respect to the rotation axis 15 in the receiving portion 41 of the; A stirring spatula 80 which is coupled to the connecting means detachably connected to the upper end of the support section 50 and is formed on the upper surface of the mortar plate; Rotary grinding device comprising a. The method of claim 1, The rotating plate 20 has a circular rotary blade 21 extending horizontally outwardly at a predetermined interval with the upper surface of the base 10, and the base 10 in the central portion of the rotary blade 21 Rotary milling device, characterized in that the bottom surface is formed with a concave portion (22) integrally formed on the rotating shaft (15) so as to be accommodated in the inner space of the base (10) through a through hole of. The method according to claim 1 or 2, The bottom surface of the mortar plate 40, the flat portion 43 and the concave portion 22 in surface contact with the rotary blade portion 21 of the rotating plate 20 through the open bottom surface of the mortar barrel (30). Rotary grinding device, characterized in that it is formed in a structure having a protrusion 42 to be inserted into. The method of claim 1, The θ1 angle is about 45 ° rotary mill. The method of claim 1, The θ2 angle is about 15 ° rotary grinder. The method of claim 1, Rotary mill, characterized in that the ring-shaped holder (Holder, 110) for storing the mortar (70) is provided at a predetermined portion of the mortar support (50). The method of claim 1, The mortar plate (40) and the mortar ball (70), the rotary grinding device, characterized in that formed of the same material as the millstone. The method of claim 1, The supporting rod 71 of the mortar 70 has a lower end portion inserted into and fixed to an opening formed at the center of the mortar 70, and has a groove formed along an outer circumferential surface at the upper end thereof. In the rotary grinding device, characterized in that the ball bearing 74 is formed integrally formed with a connecting ring piece 73 connected to the chain 60. The method of claim 1, The connecting means, the one side is opened so that the mortar hole is coupled to the upper outer peripheral surface of the support portion 50 in the form of the mortar wraps around the upper end of the support 50, the engaging piece (91a, respectively) protruding outwardly facing each other, A ring-shaped first coupling portion 91 having a 91b), a horizontal extension portion 92 integrally formed on the other side of the first coupling portion 91 and extending horizontally from the first coupling portion 91, And a first connection part 90 having a tubular second coupling part 93 integrally formed in a vertical direction to be perpendicular to an end of the horizontal extension part 92; Rotary crusher, characterized in that it comprises a second connecting portion (100) inserted into the second coupling portion (93) disposed toward the upper surface side of the mortar plate (40). The method of claim 9, A first engagement hole is formed in the engagement pieces 91a and 91b of the first engagement portion 91, and the bolt portion 94a and the bolt portion 94a which are inserted into the first engagement hole and fastened by tightening. Rotary grinding device characterized in that the first fixing valve (94) consisting of a gripping handle portion (94b) is bent to the end of the). The method of claim 9, A second coupling hole is formed at one side surface of the second coupling part 93, and the second coupling part is inserted into the second coupling hole and is tightly attached to an outer surface of the second connection part 100 by tightening. Rotary crushing, characterized in that provided with a second fixing valve (95) consisting of a bolt portion (95a) for fixing the 100 and a gripping handle portion (95b) bent to the end of the bolt portion (95a) Device. The method according to claim 1, 9, 10, or 11, The stirring spatula 80 has a fitting hole fitted to the lower portion of the second connecting portion 100 on one side thereof and is formed in a rectangular structure on the other side thereof, and the first fixing valve 94 and the Rotary grinding device, characterized in that the direction is changed according to the control of the second fixed valve (95).