KR101413712B1 - Abrasive mixer - Google Patents

Abstract

The present invention relates to an abrasive agitator, comprising: a main body including a container in which an abrasive can be received; a support mounted inside the casing; a shaft rotatably disposed inside the support; And a stirring portion disposed outside the support portion and having an upper side detachably connected to the upper side of the shaft.

Description

[0001] ABRASIVE MIXER [0002]

The present invention relates to an abrasive agitator.

The abrasive is generally composed of a round shaped abrasive particle consisting of a metal oxide such as silica or alumina having an average particle diameter of about 200 nm and a solvent such as an additive such as an oxidizing agent or an organic acid for increasing the polishing rate and pure water . When the particles are mixed with the solvent, the particles are precipitated unless stirred. Accordingly, an agitator having various structures is used to prevent particles from being precipitated when the particles and the solvent are mixed.

The stirrer includes a container into which the particles and the solvent are introduced, a cover that covers the open portion of the container, and a stirring portion that stirs the particles and the solvent. The agitating part includes a fan and a driving motor. The fan is located inside the vessel and the drive motor is located outside the vessel. The fan and drive motor are connected by a drive shaft. At least a portion of the drive shaft is located inside the container. The drive shaft and the bearing part located inside the vessel come into contact with the particles and the solvent. In this process, there is a problem that the drive shaft and the bearing are damaged by the particles and the solvent.

Published Japanese Patent Application No. 10-2006-0072695 (Jun. 28, 2006) Japanese Patent Application Laid-Open No. 10-1999-014087 (Mar. 26, 1999)

The present invention provides an abrasive agitator so that the abrasive material and the bearing supporting the drive shaft do not contact with each other.

An abrasive agitator according to an embodiment of the present invention includes a main body including a vessel into which an abrasive can be received, a support mounted inside the vessel, a shaft rotatably disposed inside the support, And a stirring part disposed on the outer side of the supporting part and having an upper side detachably connected to the upper side of the shaft.
According to another aspect of the present invention, there is provided an abrasive agitator including a main body including a container, a support portion disposed in the container, a shaft rotatably disposed in the support portion, at least an abutment portion formed between the support portion and the shaft, And an agitating driving unit connected to the other side of the shaft and capable of rotating the shaft, wherein the agitating driving unit includes a shaft, And the bearing is installed between the outer surface of one side of the shaft positioned on the upper side of the container and the inner surface of the supporting portion.

The shaft and the agitator may be fixed to each other when the recess and the recess are engaged with each other.

The stirring part may include a stirring body which surrounds the supporting part and has an upper side detachably coupled to the upper side of the shaft and a stirring fan which is connected to a lower side of the stirring body and faces an inner bottom surface of the container .

And at least one bearing formed between the shaft and the support portion.

Wherein the support portion includes a support body passing through the through hole, a flange coupled to a lower side of the support body and coupled to an outer bottom surface of the container, And may include a sealing member positioned between the apertures.

An abrasive agitator according to another embodiment of the present invention includes a main body including a container into which an abrasive can be received, a stationary shaft disposed in the container, a rotatably supported on the stationary shaft, A stirring body including at least one first permanent magnet and located inside the container and connected to the stirring body and at least one second permanent magnet, Wherein the stirring body is rotatable at a second end located on an upper side of the container opposite to a first end of the opposite ends of the stationary shaft near the bottom surface of the container, And the rotation of the second permanent magnet causes the stirring fan and the stirring body to rotate, The shaft does not rotate.

The abrasive agitator may further include a rotation sensor disposed between the first permanent magnet and the second permanent magnet, and a shield member disposed between the rotation sensor and the second permanent magnet.

The stationary shaft may include a flange supported on the container inner surface and a shaft member having one end coupled to the flange.
The abrasive agitator may further include a bearing provided between the stationary shaft and the agitating body, and the agitating body is rotatably supported by the bearing.
The abrasive agitator may further include a rotating ball disposed between the second end of the stationary shaft and the agitating body. The rotating ball may be disposed in the concave groove formed in the shaft member and the receiving groove formed in the stirring body.

Wherein the stirring fan includes a fan body located on a lower side of the support portion and formed along a circumferential surface of the support portion and having at least one first permanent magnet disposed therein and a bladder wheel arranged on an upper surface of the fan body, .

An abrasive agitator according to another embodiment of the present invention includes a main body including a container, a stationary shaft having one side disposed at the bottom of the container, an upper side disposed on the other side of the stationary shaft, And a stirring drive unit having at least one first permanent magnet and at least one second permanent magnet and rotating the stirring fan, the stirring body including at least one first permanent magnet and connected to a lower side of the stirring body, And the stirring body includes a plurality of round bars arranged along an outer circumferential surface of the stationary shaft.

The abrasive agitator may further include a circular cap rotatably installed on the other side of the stationary shaft, and each upper side of the plurality of circular rods may be connected to the circular cap.
The abrasive agitator may further include a bearing installed between the circumferential surface of the circular cap and the outer surface of the stationary shaft and a rotating ball provided between the other end of the stationary shaft and the inner upper surface of the circular cap. have.
The abrasive agitator may further include a temperature adjusting unit disposed on an outer circumferential surface of the container and adjusting a temperature of the abrasive.

According to the embodiment of the present invention, since the bearing is provided on the upper side of the container, the member such as the bearing can be prevented or minimized from being damaged by the abrasive. Thus, the life of the abrasive agitator can be increased.

According to the embodiment of the present invention, since the stirring body supported by the rotating ball rotates and the stationary shaft does not rotate, it is possible to minimize the corrosion or damage of the shaft by the abrasive.

According to the embodiment of the present invention, the recovered abrasive material can exchange heat with the temperature control part to maintain the set temperature. Therefore, the abrasive used in the polishing apparatus can be kept in the best condition, and the polishing efficiency can be improved.

According to one embodiment of the present invention, hardening and precipitation of the abrasive can be prevented by driving the agitating portion. Then, a predetermined amount of abrasive material is periodically injected into the container by the charging unit, so that the best abrasive can be supplied to the polishing apparatus.

According to an embodiment of the present invention, the stirring fan is spaced apart from the inner bottom surface of the container, so that the stirring pan and the bottom surface of the container are not rubbed against each other, so that the bottom surface of the container can be prevented from being worn. Accordingly, the damage of the abrasive agitator by the friction between the container and the agitating fan can be minimized.

1 is a schematic view showing an abrasive agitating apparatus according to an embodiment of the present invention;
2 is an enlarged view of a portion A shown in Fig.
3 is an enlarged view of a portion C shown in Fig.
Fig. 4 is an exploded perspective view showing the agitating part shown in Fig. 1; Fig.
Fig. 5 is a cross-sectional perspective view of the stirring part shown in Fig. 4;
6 is a schematic view showing an abrasive agitator according to another embodiment of the present invention;
7 is an enlarged view of a portion D shown in Fig.
8 is an enlarged view of the portion E shown in Fig.
9 is a photograph showing another embodiment of the stirring body shown in Fig.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Like parts are designated with like reference numerals throughout the specification.

An abrasive agitator according to an embodiment of the present invention will now be described with reference to Figs. 1 to 4. Fig.

FIG. 1 is a schematic view showing an abrasive agitator according to an embodiment of the present invention, FIG. 2 is an enlarged view of a portion A shown in FIG. 1, FIG. 3 is an enlarged view of a portion C shown in FIG. 1, 1 is an exploded perspective view showing the agitating part, and Fig. 5 is a cross-sectional half sectional view of the agitating part shown in Fig.

1 to 5, the abrasive spouting apparatus 1 according to the present embodiment includes a main body 10, a support portion 20, a shaft 30, a stirring driving portion 40, and a stirring fan 50 do. The abrasive agitation apparatus 1 according to the present embodiment may further include a temperature regulating unit 60, a charging unit (not shown), and a press transfer unit (not shown).

The main body 10 is a framework serving as a foundation of the abrasive-agitator 1. The main body 10 is assembled with a combination of vertical and horizontal frames, and the outer side thereof is closed with a panel. The panel may be made of stainless steel, which is highly corrosion resistant. A plurality of casters (CASTER) are mounted on the bottom surface of the main body 10. The body 10 can be easily moved by the casters.

Inside the main body 10, a container 11 in which particles made of a metal oxide such as silica and alumina, additives such as an oxidizing agent and an organic acid, and a solvent such as water are mixed (hereinafter referred to as an abrasive) are disposed. Normally, the abrasive can be agitated while being filled with about half of the depth of the container 11. This is because the agitation efficiency is lowered when the abrasive material is significantly filled in the container 11.

  A through hole 111 is formed at the center of the bottom surface of the container 11, and an upper portion of the container 11 is opened. A lid 12 is disposed in an open portion of the container 11. [ The lid 12 interrupts the open portion of the container 11.

The cover (12) prevents the abrasive material in the agitating state from bouncing out of the container (11).

A stepped portion is formed on the upper side of the container 11 in which the lid 12 is located. The outer circumferential surface of the lid 12 is fixed on the stepped portion. In addition, the lid 12 is hinged to the upper surface of the main body 10 and can move based on the hinge.

The container 11 and the lid 12 may be made of the same stainless steel as the main body 10. [

On the upper surface of the main body 10, a charging unit (not shown) for charging an abrasive material into the container 11 may be disposed. The dosing unit injects a predetermined amount of abrasive material into the container (11). The input portion can introduce the abrasive material into the container 11 by the vibration. The charging unit can inject the abrasive into the container 11 by a screw or a conveyor system. The structure of the input part can be variously changed.

In addition, a press-feeding section (not shown) for press-feeding the abrasive fed into the container 11 to the outside is provided on the lower inner side of the container 11. The press transfer section presses the abrasive material by the pumping force of the pump. The structure of the press-feeding part can be variously made.

The charging unit can inject the abrasive to be agitated into the container 11 by the amount of the capacity discharged through the pressure transfer unit after the completion of the agitation.

The support 20 includes a support body 21, a flange 22, and a sealing member 23, which is located inside the container 11 so that the abrasive does not contact the shaft 30.

The support body 21 has an inner portion penetrating along the longitudinal direction and having a predetermined length. The support body (21) is arranged vertically in the interior of the container (11). At this time, the lower side of the support body 21 is located in the through hole 111 of the container 11, and the upper side is located close to the lid 12.

The flange 22 is coupled along the lower circumference of the container 11 by coupling the support body 21 to the container 11. The diameter of the flange 22 is greater than the diameter of the support body 21. The flange 22 is coupled to the outer bottom surface of the container 11. However, the flange 22 may be joined to the inner bottom surface of the container 11. At this time, the flange 22 can be coupled to the container 11 in a welding manner. However, the flange 22 may be coupled to the container 11 by fastening means such as bolts, rivets, or the like.

The sealing member 23 is positioned between the through hole 111 and the supporting body 21. [ The sealing member 23 prevents leakage of the abrasive material between the through hole 111 and the support body 21. [ The sealing member 23 can be made of rubber or the like. In addition, the sealing member 23 may be positioned between the flange 22 and the bottom surface of the container 11.

Since the lower side of the support body 21 is engaged with the container 11 by the flange 22 and the upper side of the support body 21 is located close to the lid 12, But does not contact the upper side of the support body 21. [ Accordingly, the abrasive material accommodated in the container 11 is not introduced into the support body 21.

The shaft 30 is formed to have a predetermined length. The shaft 30 is rotatably disposed inside the support body 21. As shown in Fig. At this time, both sides of the shaft 30 are exposed to the outside of the support body 21. The upper side of the shaft 30 exposed to the outside of the support body 21 is located at a lower position than the lid 12.

The circumferential surface of the shaft 30 and the inner circumferential surface of the support body 21 are spaced apart. Between the outer circumferential surface of the shaft 30 and the inner circumferential surface of the support body 21 is positioned a bearing B that supports the shaft 30 so that the shaft 30 rotates within the support body 21. At this time, the bearings B are disposed at the lowermost end and the uppermost end of the support body 21, respectively. The abrasives contained in the container 12 do not flow into the support body 21 so that the bearings B located inside the support body 21 do not easily contact the abrasives. Accordingly, it is possible to prevent the problem that the bearing B is damaged by the abrasive.

Since the shaft 30 is disposed inside the support body 21, the shaft 30 is not in contact with the abrasive charged into the container 11. Accordingly, there is no problem such as abrasion which may occur when the shaft 30 contacts the abrasive. Thus, the life of the shaft 30 can be increased. In addition, since the abrasive material does not cause a problem when it comes into contact with the bearing, the rotational force of the shaft 30 can be maximized.

The stirring driving unit 40 includes a pulley 41, a driving motor 42, and a belt 43 for rotating the shaft 30.

The pulley 41 is coupled to the lower side of the shaft 30. The pulley 41 has a plurality of belt grooves. The diameter of each belt groove is different. However, the diameter of each belt groove may be the same.

The drive motor 42 is mounted inside the main body 10. A drive pulley is mounted on a drive shaft of the drive motor 42, and a plurality of belt grooves are formed in the drive pulley.

The belt 43 is wound around the belt groove of the pulley 41 and the belt groove of the drive pulley. The cross section of the belt 43 may be formed in a circular shape, a V shape, and a rectangular shape. The power of the drive motor 42 is transmitted to the pulley 41 through the belt 43 so that the shaft 30 can be rotated. The belt 43 may be formed of a timing belt. At this time, a gear is formed in each of the pulley grooves.

In addition, the rotation ratio of the drive motor 42 and the pulley 41 can be adjusted according to the position of the belt 43 engaged with the belt groove of the pulley 41. The rotation speed of the shaft 30 can be adjusted according to the rotation ratio of the pulley 41. [ In addition, the rotation speed of the shaft 30 can be adjusted by driving the drive motor 42. [

The stirring part 50 includes a stirring body 51 and a stirring fan 52 by mixing the abrasive charged into the vessel 11. [

The stirring body 51 surrounds the outer circumferential surface of the supporting body 21. The inner circumferential surface of the stirring body 51 and the outer circumferential surface of the support body 21 are spaced apart from each other. At least a part of the stirring body 51 can be in contact with the shaft 30 so that the rotational force of the shaft 30 can be transmitted to the stirring part 50. [

The shaft 30 and the agitating body 51 are in contact with each other, and a concave portion and a convex portion are respectively formed on the surfaces facing each other. The shaft 30 and the agitating body 51 can be connected to each other as the recess and the convex portion are combined.

The concave and convex portions may be formed by the polygonal groove 511 and the polygonal protrusion 31 as shown in FIG. However, the recess and the recess can be formed in various ways such as a bolt and a nut, a key and a key groove, and the like. The recessed portion and the recessed portion can be of any structure as long as it can prevent the rotation slip of the shaft when the power of the shaft 30 is transmitted to the agitating body 51.

In addition, fastening means (not shown) may be fastened to the stirring body 51 and the shaft 30 so that the stirring body 51 can be fixed to the upper side of the shaft 30.

The inner peripheral surface of the stirring body 51 is separated from the outer peripheral surface of the supporting portion 20 so that the stirring body 51 can smoothly rotate together with the shaft 30. [

Although the stirring body 51 is shown in the form of a cylinder in the accompanying drawings, the stirring body 51 may be formed by arranging a round bar (see FIG. 9) along the periphery of the supporting body 21. When the stirring body 51 is formed as a round bar, a circular cap may be positioned on the upper side of the round bar. The circular cap is rotatable together with the stirring body of the round bar and the shaft (30).

The stirring pan (52) is connected to the lower side of the stirring body (51). The stirring fan 52 is spaced apart from the inner bottom surface of the container 11. The stirring fan 52 is formed in a wing-like shape and arranged along the circumferential direction of the stirring body 51.

However, the stirring fan 52 may be formed of a disc, not shown in the drawing. At this time, the wings may be arranged along the circumferential direction on the upper surface of the disk.

The agitating fan 52 uniformly mixes the abrasives charged into the container 11. Further, a vortex is generated in the container 11 by the rotation of the stirring fan 52, and the abrasive is not settled.

In addition, since a predetermined amount of abrasive material is periodically introduced into the container 11 by the charging unit, it is possible to supply the best abrasive material to the polishing position. As a result, it is possible to obtain the best polishing result with high purity.

Since the stirring body 51 and the shaft 30 of the stirring unit 50 are formed by surface-to-surface coupling, the power of the shaft 30 can be transmitted to the stirring body 51 without loss, The separating operation can be facilitated and the maintenance performance of the agitating part 50 can be improved.

In addition, the stirring unit 50 can adjust the rotation speed of the stirring unit 50 by the rotation ratio transmitted to the shaft 30.

The stirring portion 50 may be made of stainless steel, synthetic resin, or the like.

The temperature regulating portion 60 is located inside the main body 10 and is in close contact with the outside of the container 11. [ The temperature regulating portion 60 performs heat exchange with the abrasive charged into the container 11. At this time, the temperature control unit 60 may lower or raise the temperature of the solvent. Here, the configuration of the temperature regulating unit 60 is the same as that of a known refrigeration cycle system or a heating apparatus including a heat line, and therefore, a detailed description thereof will be omitted.

A heat insulating member is coupled to an outer circumferential surface of the container 11 to prevent heat loss of the abrasive material whose temperature is controlled by the temperature adjusting unit 60. The insulating member can be wrapped by an outer cover (not shown).

On the other hand, the main body 10 is provided with a stirring driving section 40, a temperature regulating section 60, a controller 70 electrically connected to the feeding section and the pressure feeding section. The rotation speed of the stirring driving unit 40 and the temperature of the temperature adjusting unit 60 can be adjusted by the controller 70. [ In addition, it is possible to control the degree of application of the abrasive and the degree of pressing. The input of the controller 70 is exposed to the outside of the main body 10 so that the user can easily operate the controller 70.

In addition, a sensor (not shown) for sensing the rotation of the stirring fan 52 may be installed on the inner bottom surface of the container 11. The sensor is electrically connected to the controller. The sensor senses when the stirring fan 52 is caught by the abrasive material and can not rotate, and applies a signal to the controller. When a signal is applied to the controller, the driving of the stirring driving unit 40 is stopped. Accordingly, it is possible to prevent an overload that may occur in the agitation driving unit 40 when the agitation fan 52 stops by the abrasive.

In addition, a capacity sensor (not shown) for sensing the capacity of the charged abrasive material may be disposed in the container 11. The capacitance sensor is electrically connected to the controller 70. When the abrasive material is detected by the capacity sensor as being set below, a signal can be applied to the controller 70. At this time, the controller 70 can apply a signal to the charging unit so that the abrasive can be introduced into the container 11. [

In addition, a temperature sensor (not shown) for sensing the temperature of the abrasive material may be disposed inside the container 11. The temperature sensor is electrically connected to the controller (70). The temperature regulating unit 60 can be driven according to the sensed temperature of the temperature sensor.

On the other hand, the abrasive material fed through the press-feeding section can be returned to the container 11 after being used in the polishing apparatus. At this time, the recovered abrasive material can exchange heat with the temperature regulating portion 60. Accordingly, the abrasive used in the polishing apparatus can be maintained in the best condition, and the polishing efficiency can be improved.

Next, an abrasive agitator according to another embodiment of the present invention will be described with reference to FIGS. 6 to 8. FIG.

FIG. 6 is a schematic view showing an abrasive agitator according to another embodiment of the present invention, FIG. 7 is an enlarged view of part D shown in FIG. 6, and FIG. 8 is an enlarged view of part E shown in FIG.

The abrasive agitation apparatus 2 according to the present embodiment includes a main body 10, a stationary shaft 32, a stirring body 51, a stirring fan 52, a stirring driving section 40, and a bearing 323.

The main body 10 according to the present embodiment includes a container 11 in which an abrasive is accommodated and a lid 12 for interrupting the inlet of the container 11. Since the main body 10 according to the present embodiment is substantially the same as the main body 10 shown in the embodiment of Figs. 1 to 5, a duplicated description will be omitted. However, a through hole is not formed in the bottom surface of the container 11 according to the present embodiment.

The stationary shaft 32 is installed inside the container 11 and includes a flange 321 and a shaft member 322.

The flange 321 may be in contact with the inner surface of the container 11. The flange 321 may be formed in a circular or square shape. A suction member (not shown) may be provided on the bottom surface of the flange 321 contacting the inner surface of the container 11.

The shaft member 322 is coupled to the flange 321. One end of the shaft member 322 is engaged with the flange 321 and the other end of the shaft member 322 is positioned close to the lid 12. [ Since the other end of the shaft member 322 is close to the lid 12, the abrasive does not easily touch the other end of the shaft member 322.

A concave groove 322a is formed at the other end of the shaft member 322 and a rotating ball 324 is disposed in the concave groove 322a.

The rotating ball 324 is formed in the form of a steel ball. The rotating ball 324 is rotatably disposed in the concave groove 322a and lubricating oil can be applied to the circumferential surface of the concave groove 322a and the circumferential surface of the rotating ball 324. [ The lubricant may be made of grease.

On the other hand, at least a part of the rotating ball 324 is exposed outside the concave groove 322a. The cap 324a encloses at least a part of the rotating ball 324 exposed to the outside of the recessed groove 322a so that the rotating ball 324 does not separate from the recessed groove 322a. The cap 324a is detachably coupled to the shaft member 322.

The inside of the cap 324a penetrates vertically so that at least a part of the rotating ball 324 is exposed to the outside through the upper side of the cap 324a. However, the cap 324a may be omitted.

The bearing 323 is provided on the upper side of the shaft member 322. The inner ring portion of the bearing 323 abuts the circumferential surface of the shaft member 322. [ On both sides of the bearing 323, a snap ring 323a for coupling the bearing 323 to the shaft member 322 is provided. The snap ring 323a is fixed to the shaft member 322. [

The stirring body 51 is located on the outer side of the shaft member 322 and the upper side is rotatably supported by the rotating ball 324 and the bearing 323. The stirring body 51 is formed in a cylindrical shape and surrounds the outer peripheral surface of the shaft member 322. At this time, the outer circumferential surface of the shaft member 322 and the inner circumferential surface of the stirring body 51 are spaced apart from each other. The bottom surface of the stirring body 51 is spaced apart from the inner bottom surface of the container 11.

The inside of the upper side of the stirring body (51) is supported by the outer ring part of the bearing (323). The inner upper surface of the stirring body (51) is in contact with the rotating ball (324). At this time, on the inner upper surface of the stirring body 51, a receiving groove 241 for receiving at least a part of the rotating ball 324 is formed. The stirring body 51 is supported on the shaft member 322 by the bearing 323 and the rotating ball 324 so that the stirring body 51 can rotate about the shaft member 322. [ In addition, since the rotating ball 324 supports the inner upper surface of the stirring body 51, the stirring body 51 is not sagged in the direction of the bottom surface of the container 11. The upper surface of the shaft member 322 and the inner upper surface of the stirring body 51 are not in contact with each other.

Since the agitating body 51 surrounds the rotating ball 324 and the bearing 323 and the rotating ball 324 and the bearing 323 are located on the upper side of the container 11, And the bearing 323, respectively. Accordingly, damage to the rotating ball 324 and the bearing 323 by the abrasive can be prevented.

The agitation fan 52 includes a fan body 521, a container 11, and a first permanent magnet 523 which are located inside the container 11 and mix the abrasives introduced into the container 11.

The fan body 521 is formed along the lower circumferential surface of the stirring body 51. The fan body 521 is spaced apart from the flange 321. The inside of the fan body 521 is empty.

Meanwhile, a rib (not shown) may be formed on the bottom surface of the fan body 521 to allow the fan body 521 to rotate stably.

The wing cars 522 are arranged along the circumferential direction on the upper surface of the fan body 521. The blades 522 may be formed in various shapes, such as a wave-like linear shape.

The first permanent magnets 523 are arranged along the circumferential direction of the fan body 521 inside the fan body 521. At this time, the N pole of the first permanent magnet 523 is adjacent to the center of the fan body 521, and the S pole thereof is adjacent to the circumferential face of the fan body 521.

The stirring drive unit 40 rotates the stirring unit, that is, the stirring body 51 and the stirring fan 52 from the outside of the vessel 11 and includes a first pulley 541, a driving motor 542, a belt 543, And a second permanent magnet 544.

The first pulley 541 faces the fan body 521 with the bottom surface of the container 11 interposed therebetween. The first pulley 541 is formed of a first portion 541a and a second portion 541b and the first portion 541a faces the bottom surface of the container 11 and the second portion 541b faces the bottom of the container 11, Is located below portion 541a. The interior of the first portion 541a of the first pulley 541 is empty. But it may not be empty. On the outer peripheral surface of the second portion 541b of the first pulley 541, belt grooves are formed along the circumferential direction. The diameters of the belt grooves may be different. However, the first pulley 541 may be formed as one without the first portion 541a and the second portion 541b.

The second permanent magnets 544 are arranged along the circumferential direction of the first pulley 541 in the first pulley 541. At this time, at least one second permanent magnet 544 may be installed. Although the second permanent magnet 544 is illustrated as being located within the first portion 541a of the first pulley 541 in the accompanying drawings, the second permanent magnet 544 is disposed on the upper surface of the first pulley 541 in the circumferential direction As shown in FIG. The S pole of the second permanent magnet 544 is adjacent to the center of the first pulley 541 and the N pole is adjacent to the circumferential surface of the first pulley 541. Accordingly, when the second permanent magnets 544 and the first permanent magnets 523 are positioned on the same line in the up-and-down direction, attracting force is generated between the second permanent magnets 544 and the first permanent magnets 523.

Although the first pulley 541 is illustrated as being supported on the inner bottom surface of the main body 10 such as a bracket in the attached drawings, the first pulley 541 is supported on the bottom surface of the container 11 such as a bracket, .

The drive motor 542 is separated from the first pulley 541. The driving shaft of the driving motor 542 is fitted with a second pulley 542a facing the first pulley 541. [ On the outer circumferential surface of the second pulley 542a, belt grooves are formed along the circumferential direction. The diameter of the second pulley 542a is smaller than the diameter of the first pulley 541. However, the diameters of the first pulley 541 and the second pulley 542a may be the same.

The belt 543 is wound around the belt grooves of the first pulley 541 and the second pulley 542a. Accordingly, when the driving motor 542 is driven, the first pulley 541 rotates about its axis as the belt 543 which is wound around the second pulley 542a moves. At this time, the second permanent magnet 544 also moves along the first pulley 541. When the second permanent magnets 544 moving along the first pulley 541 are positioned on the same line as the first permanent magnets 523, an attractive force is generated due to their polarity arrangement.

Since the second permanent magnet 544 is mounted on the rotating first pulley 541, the first permanent magnet 523 also rotates along the second permanent magnet 544. Since the stirring body 51 to which the fan body 521 is connected is supported by the bearing 323 and the rotating ball 324 on the shaft member 322, the fan body 521 rotates in the direction of rotation of the first pulley 541 . At this time, the blades 522 collide with the abrasive material flowing into the container 11, and the abrasive material is mixed.

When the agitating fan 52 is rotated, the agitating particles and the agitated product of the solvent charged into the container 11 are agitated with each other. By the continuous rotation of the agitating fan 52, It does not sink on the surface.

Since the agitation fan 52 located in the vessel 11 and the stirring drive unit 40 located outside the vessel 11 are connected to each other by the attraction force of the permanent magnet, It does not penetrate. As a result, the abrasive can be agitated hygienically with the extension of the life of the abrasive agitator 2.

Since the fixing shaft 32 for rotatably supporting the stirring body 51 to which the stirring fan 52 is connected is placed on the bottom surface of the container, the stirring fan 52, the stirring body 51, Can be easily separated from the inside of the container 11 to the outside. This makes it possible to improve the maintainability of the stirring fan 52, the stirring body 51, and the fixing shaft 32 and the washing performance of the container 11.

The abrasive agitation apparatus 2 according to the present embodiment may further include a rotation detecting sensor 80 and a shielding member 90.

The rotation detecting sensor 80 is positioned between the bottom surface of the container 11 and the first pulley 541 to notify when the agitation fan 52 or the like is caught by the set abrasive material and can not be rotated. The rotation detecting sensor 80 is electrically connected to the controller. In addition, the shielding member 90 is positioned between the rotation sensor 80 and the first pulley 541.

When the second permanent magnet 544 is positioned on the same line as the rotation detecting sensor 80 when the first pulley 541 rotates, the magnetic force of the second permanent magnet 544 is transmitted to the rotation detecting sensor 80 ). The shielding member 90 may be made of metal or the like.

The rotation sensing sensor 80 senses only the magnetic force of the first permanent magnet 523 because the magnetic force of the second permanent magnet 544 does not reach the rotation sensing sensor 80 by the shielding member 90.

When the abrasive material is deposited on the inner bottom surface of the container 11, the stirring fan 52 and the stirring body 51 are caught by the precipitated abrasive material and can not be rotated. However, the first pulley 541 in which the rotation detecting sensor 80 is located is continuously rotated by the driving motor 542. [ At this time, when the rotation detecting sensor 80 moves out of the first permanent magnet 523, the rotation detecting sensor 80 can not detect the magnetic force of the first permanent magnet 523. Further, when the stirring fan 52 is not positioned in the container 11, the magnetic force of the first permanent magnet 523 is not sensed by the rotation sensor 80.

If the magnetic force of the first permanent magnet 523 is not detected by the rotation detecting sensor 80, the rotation detecting sensor 80 applies a signal to the controller. When the controller receives the signal of the rotation detection sensor 80, the controller applies a signal to the drive motor 542 so that the drive motor 542 is stopped.

On the other hand, when a signal is applied to the controller from the rotation detecting sensor 80, the lamp of the controller may emit light. By light emission of the lamp, the operator can confirm the abnormality of the agitating part.

The abrasive agitator 2 according to the present embodiment may further include a temperature controller 60a and a controller. The temperature regulating portion 60a is provided in the container 11 and regulates the temperature of the abrasive introduced into the container 11. [ The controller is exposed to the outside of the main body 10 and directly controls the operations of the temperature control unit 60a and the stirring driving unit 40 by a user's operation. The temperature controller 60a and the controller may be substantially the same as the temperature controller and the controller shown in FIGS. 1 to 5, and a detailed description thereof will be omitted.

9 shows a stirring body of an abrasive agitator according to another embodiment of the present invention . The abrasive agitator according to the present embodiment may have the features according to Figs. 6 to 8 as long as the abrasive agitator according to the present embodiment does not conflict with the following description. The stirrer body 51 according to the present embodiment has the round bar arranged along the peripheral surface of the shaft member 322 of the stationary shaft. The upper side of the round rods is connected to a circular cap 51a rotatably supported on the upper side of the shaft member 322. [ The circular cap 51a is rotatably supported on the shaft member 322 by a rotating ball (not shown) and a bearing (not shown). The bottom surface of the circular cap 51a is closed.

Since the circular cap 51a is located on the upper side of the container and the bottom surface is closed, the rotating ball and the bearing located inside the circular cap 51a are not in contact with the abrasive contained in the container. Thus, damage to the rotating ball and the bearing due to the abrasive can be prevented.

The lower side of the round rods is connected by a flange 51b, and the flange 51b is connected to a stirring fan 52. [ The stirring body 51 in the form of a round bar stably supports the stirring fan 52 rotatably on the stationary shaft. Thus, the abrasion resistance of the abrasive is improved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Of the right.

1: abrasive agitator
10: main body 11: container
111: through hole 12: cover
20: support part 21: support body
22: flange 23: sealing member
30: shaft 31: polygonal projection
32: stationary shaft 322: shaft member
324: rotating ball 322a: concave groove
241: receiving groove 324a: cap
40: stir driving part 41: pulley
42: drive motor 43: belt
50: stirring part 51: stirring body
51a: circular cap 52: stirring fan
521: fan body 522: wing car
60: Temperature controller 70: Controller
B: Bearing

Claims (11)

A body including a container,
A support portion disposed in the container,
A shaft rotatably disposed in the support portion,
At least one bearing formed between the support and the shaft,
A stirring part disposed on the outside of the support part and having one side connected to one side of the shaft,
A stirring driving part connected to the other side of the shaft and capable of rotating the shaft,
And an abrasive agitator. A body including a vessel into which an abrasive can be accommodated,
A stationary shaft disposed in the container,
A stirring body located outside the stationary shaft and rotatably supported by the stationary shaft,
A stirring fan which includes at least one first permanent magnet and is located inside the container and is connected to the stirring body, and
A stirring drive part which includes at least one second permanent magnet and is located outside the container and rotates the stirring fan,
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Wherein the stirring body is rotatably supported at a second end portion located on an upper side of the container opposite to a first end portion of the opposite end portions of the stationary shaft near the bottom surface of the container, The stirring fan and the stirring body rotate due to the rotation of the magnet and the fixing shaft does not rotate
Abrasive agitation device. 3. The method of claim 2,
Further comprising: a bearing installed between the stationary shaft and the stirring body, wherein the stirring body is rotatably supported by the bearing. 4. The method of claim 3,
And a rotating ball disposed between the second end of the stationary shaft and the stirring body. 5. The method of claim 4,
Wherein the fixed shaft includes a flange disposed in the container and a shaft member connected to the flange, the rotating ball having a concave groove formed in the shaft member and an accommodating groove formed in the stirring body, . 3. The method of claim 2,
A rotation detecting sensor disposed between the first permanent magnet and the second permanent magnet, and a shielding member disposed between the rotation detecting sensor and the second permanent magnet. A body including a container,
A stationary shaft whose one side is located at the bottom of the container,
An agitating body located on the outer side of the stationary shaft and having an upper side rotatably supported on the other side of the stationary shaft,
A stirring fan including at least one first permanent magnet and connected to a lower side of the stirring body, and
A stirring drive unit having at least one second permanent magnet for rotating the stirring fan,
Lt; / RTI >
Wherein the stirring body includes a plurality of round bars arranged along an outer circumferential surface of the stationary shaft
Abrasive agitation device. 8. The method of claim 7,
Further comprising a circular cap rotatably installed on the other side of the stationary shaft, wherein each upper side of the plurality of round rods is connected to the circular cap. 9. The method of claim 8,
Further comprising: a bearing installed between the circumferential surface of the circular cap and the outer surface of the stationary shaft; and a rotating ball provided between the other end of the stationary shaft and the inner upper surface of the circular cap. 10. The method according to any one of claims 1 to 9,
And a temperature adjusting unit disposed on an outer circumferential surface of the container and adjusting a temperature of the abrasive. delete

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