JP6515390B2 - Mixer head - Google Patents

Description

The present invention relates to a mixer head which is insertable into a fluid and which uniformly disperses the dispersed object in the fluid by agitating the fluid with the dispersed object.

  A technique for uniformly dispersing a dispersion target in a fluid is required in various fields such as food industry and chemical industry. In the food industry, a technique is used in which a solid, which is an object to be dispersed, is introduced into and stirred in a fluid, which is a fluid, to uniformly disperse the solid in the liquid. In the food industry, examples of liquids in which solids are evenly dispersed include batter, seasoning or various sources.

  As a mixer apparatus which manufactures the liquid which such solid dispersed uniformly, there is a thing shown in patent documents 1.

  In the mixer apparatus of Patent Document 1, for example, in the case of stirring and mixing a fluid that is a fluid and a powder material that is a dispersion target, solid content such as aggregated powder material that is present in the liquid can be very short It can be ground and uniformly dispersed in the liquid.

JP, 2009-72687, A

  However, in the mixer device of Patent Document 1, when the specific gravity of the object to be dispersed with respect to the fluid is small, an aggregate in which the object to be dispersed and the object to be dispersed are aggregated floats on the fluid surface. It may be difficult to incorporate the floating dispersion target or aggregate into the fluid. Therefore, there is a problem that the object to be dispersed can not be uniformly dispersed in the fluid in a very short time.

  In addition, when the specific gravity of the object to be dispersed with respect to the fluid is large, the object to be dispersed sinks to the bottom of the container in which the stirring is performed. Therefore, there is a problem that the object to be dispersed can not be uniformly dispersed in the fluid in a very short time.

  As the viscosity of the fluid increases, it becomes more difficult to uniformly disperse the object to be dispersed in the fluid in a very short time. Further, the tackiness of the object to be dispersed may cause adhesion to the inner surface of the container into which the object to be dispersed and the fluid are charged.

  Depending on the shape of the container in which the stirring is performed, the fluid flow in the stirring may cause the dispersion target to be collected at a specific position such as the corner of the container, and the dispersion target may be easily aggregated.

Therefore, in view of the above point, the present invention aims to provide a mixer head capable of uniformly dispersing a dispersion target in a fluid in an extremely short time regardless of the specific gravity of the dispersion target relative to the fluid.

In order to solve the above problems, the mixer head according to claim 1 is insertable into the fluid, and the mixer head uniformly disperses the dispersed object in the fluid by agitating the fluid with the dispersed object. And an impeller that is rotatable about a rotation axis,
The impeller can be accommodated therein, and a side circumferential surface is formed with openings on both sides in the axial direction of the rotary shaft of the impeller, and holes capable of radially discharging the fluid and the dispersion object from the rotary shaft of the impeller. And the impeller is fixed to a surface rotating in the axial direction of the rotating disk, and a base end of the impeller is opposed to the axial direction of the rotating disk. A standing portion standing in a direction perpendicular to the surface, and a tip end of the standing portion so as to face the surface of the rotary disc parallel to the surface of the rotary disc to which the base end of the standing portion is fixed. And the impeller has the erecting portion and the extending portion on both sides of the rotary disc facing the axial direction, and The object to be dispersed in the accommodation space is rotated by rotation. A flow of fluid and an object to be dispersed which is cut or crushed and directed to the side circumferential surface of the accommodation space is generated, and the fluid and the dispersion object are discharged from the accommodation space radially from the rotating shaft of the impeller; A fluid and an object to be dispersed are sucked into the accommodation space from the openings on both axial sides of the impeller.

  According to the mixer head of claim 1, since the fluid and the object to be dispersed are sucked into the accommodation space from the openings on both axial sides of the impeller, the dispersion sinks to the bottom of the object to be suspended floating on the fluid surface and the container performing agitation. The object can be efficiently dispersed uniformly in the fluid.

Also, according to the mixer head of claim 1, even if the flow of fluid and the object to be dispersed toward the opening is generated in the storage space, the flow collides with the extension portion and the storage space is obtained by the centrifugal force due to the rotation of the impeller. It is guided to the side circumference of the As a result, the fluid and the object to be dispersed are discharged from the side peripheral surface of the accommodation space, and the inside of the accommodation space becomes a negative pressure, so that the fluid and the object to be dispersed are smoothly sucked from the opening.

A mixer head according to claim 2 is the mixer head according to claim 1 , wherein a plurality of cutter blades are formed at the outer peripheral edge of the rotary disc.

According to the mixer head of the second aspect , in addition to acting in the same manner as the mixer head of the first aspect , the plurality of cutter blades of the rotary disc subdivides the dispersion object and the aggregation object by the rotation of the impeller. be able to.

A mixer head according to a third aspect of the present invention is the mixer head according to the first or second aspect , wherein a cutter blade is formed on a peripheral edge portion in the rotational direction of the extending portion.

According to the mixer head of the third aspect , in addition to acting in the same manner as the mixer head of the first or second aspect , the cutter blade of the extension portion divides the dispersion target and the dispersion target which is aggregated by the rotation of the impeller. can do.

A mixer head according to a fourth aspect of the present invention is the mixer head according to any one of the first to third aspects, wherein a saw blade-like portion is formed between the proximal end and the distal end of the standing portion.

According to the mixer head of the fourth aspect , in addition to acting in the same manner as the mixer head according to any of the first to third aspects, the saw blade-like portion of the standing portion is dispersed by the rotation of the impeller. Objects can be subdivided.

The mixer head according to claim 5 is the mixer head according to any one of claims 1 to 4 , wherein the housing space is open in the axial direction and is surrounded by a cylindrical strainer having a hole formed in a side peripheral surface thereof. ing.

According to the mixer head of the fifth aspect , in addition to acting in the same manner as the mixer head of any of the first to fourth aspects, shear force is generated in the fluid when passing through the hole of the strainer, and the shear force causes dispersion target The substance and the aggregated dispersion object can be subdivided.

A mixer head according to a sixth aspect is the mixer head according to the fifth aspect , wherein the strainer is attachable to and detachable from the mixer head.

According to the mixer head of the sixth aspect , in addition to acting as the mixer head of the fifth aspect , the strainer can be removed for easy cleaning. In addition, the exposed impeller can be easily cleaned by removing the strainer. Further, it is possible to easily replace strainers having different shapes of holes depending on the fluid and the object to be dispersed.

In the mixer head according to claim 7, in the mixer head according to any one of claims 1 to 6 , the housing space is further covered with an umbrella-like member at one opening side in the axial direction, and the umbrella-like member is A part of the flow of the fluid and the dispersion target toward the side circumferential surface of the accommodation space is reflected and turned to the other opening side in the axial direction.

According to the mixer head of the seventh aspect , in addition to acting in the same manner as the mixer head of any of the first to sixth aspects, the umbrella-like member carries out the stirring by guiding the flow of the fluid discharged from the storage space. Forced convection can occur in the vessel.

The mixer head according to claim 8 is the mixer head according to claim 7 , wherein the umbrella-like member is slidable and displaceable in the axial direction with respect to the impeller.

The mixer head of the eighth aspect functions in the same manner as the mixer head of the seventh aspect , and by sliding the umbrella-like member in the axial direction with respect to the impeller, the exposed impeller can be easily cleaned.

The mixer head according to any one of claims 1 to 8 has the effect of being able to uniformly disperse the object to be dispersed in the fluid in an extremely short time regardless of the specific gravity of the object to be dispersed relative to the fluid.

It is a side view of a stand mixer which has a mixer head of one embodiment of the present invention. It is the elements on larger scale of FIG. It is a fragmentary sectional view showing the internal structure of a mixer head. It is a perspective view of an impeller. It is the elements on larger scale which remove the strainer from the state of FIG. 2, and show the state which slid the stator.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. As shown in FIG. 1, the stand mixer 1 mainly includes a body frame 2, a container 5 containing a fluid to be stirred and a dispersion target, and a fluid and a dispersion target contained in the container 5. A mixer head 4 for stirring and mixing, and a drive device 3 for driving the mixer head 4 are provided.

  The main body frame 2 is a support structure on which the mixer head 4 and the drive device 3 are mounted. The body frame 2 is a pair of legs 21 extending in the front-rear direction (the left and right direction in FIG. 1) at its lower end, and erected in a substantially vertical posture on the rear side (right side in FIG. 1) of each leg 21 A section 22 is provided.

  One pair of leg portions 21 is provided on each side of the main body frame 2 in the width direction (the direction perpendicular to the sheet of FIG. 1). A caster 23 is attached to the lower surface of the pair of legs 21. The body frame 2 can be easily moved on the floor surface by the caster 23.

  A control panel 24 is disposed in the upright portion 22. The control panel 24 incorporates a control circuit for electrically controlling the drive device 3. On the front surface of the control panel 24, an operation panel 24a for setting the operating conditions of the stand mixer 1 is provided. There is. The user can set the operating conditions of the stand mixer 1 with the operation panel 24a, and the control circuit can control the operation of the drive device 3 based on the setting conditions.

  In addition, an arm portion 25 extending forward from the upright portion 22 of the main body frame 2 is provided. At the front end of the arm portion 25 is mounted a driving device 3 capable of swinging in the direction of arrow R in FIG. The drive device 3 can be changed to any mounting angle with respect to the arm 25. By changing this mounting angle, the attitude of the mixer head 4 connected to the drive device 3 can be changed.

  Further, the arm portion 25 is configured to be vertically movable in the vertical direction by a lifting motor incorporated in the upright portion 22 of the main body frame 2. The elevating motor is controlled by the control circuit based on the operation of the operation panel 24a. The user can freely raise and lower the arm unit 25 by operating the operation panel 24a. The arm unit 25, the driving device 3 and the mixer head 4 can be moved up and down together, and the mixer head 4 can be set at any position in the moving up and down direction.

  The drive device 3 mainly includes an electric motor 31 that generates a rotational force by power supply, a reduction gear 33 that reduces the rotational force of the electric motor 31 and transmits it to the drive shaft 32, and the drive shaft 32 can rotate freely. And a bearing unit 34 for supporting the same. Hereinafter, the “axial direction of the rotation shaft of the drive shaft 32” will be described simply as the “axial direction”.

  The bearing unit 34 is vertically suspended downward from the reduction gear 33, and the drive shaft 32 is loosely inserted concentrically in the inner peripheral portion of the bearing unit 34. The drive shaft 32 is connected to the reduction gear 33 at its upper base end in the axial direction, and the lower half of the drive shaft 32 extends further downward than the lower end in the axial direction of the bearing unit 34. .

  When the mixer head 4 is placed in the container 5, the axial direction end of the bearing unit 34 is above the surfaces of the fluid and the object to be dispersed in the container 5. Components other than the drive shaft 32 of the drive device 3 do not come in contact with the fluid of the container 5 and the object to be dispersed. Therefore, the components other than the drive shaft 32 of the drive device 3 do not have to be watertight, and the hygiene management when the fluid and the object to be dispersed are edible can be facilitated.

  The container 5 is a substantially rectangular parallelepiped container body with a bottom and no lid, which is separately formed from the main body frame 2, and can be charged with a fluid and an object to be dispersed into the container 5. A caster 5 a is attached to the lower surface of the container 5. The container 5 can be easily moved on the floor surface by the casters 5a.

  As shown in FIG. 2, the bearing unit 34 has a cylindrical bearing sleeve 34 a rotatably supporting the drive shaft 32 at the inner peripheral portion, and a support flange 34 b provided around the outer periphery of the lower end portion of the bearing sleeve 34 a. And.

  Three cylindrical guide sleeves 34c are provided upright on the upper surface of the support flange 34b. A slide rod 35 passes through each of the guide sleeves 34c and the support flange 34b. The slide rod 35 is a shaft extending parallel to the axial direction. The slide rod 35 can slide in parallel with the axial direction.

  At the upper end in the axial direction of each slide rod 35, a stopper that prevents the slide rod 35 from being pulled out from the support flange 34b by being hooked on the upper end surface of the guide sleeve 34c is provided.

  On the side peripheral surface of the guide sleeve 34c, a handlebar-equipped fixing screw 34d is provided which can fix the slide rod 35 to the guide sleeve 34c by pressing the slide rod 35.

  The mixer head 4 is insertable into the fluid and uniformly disperses the dispersion object in the fluid by stirring the fluid with the dispersion object. As shown in FIG. 3, the mixer head 4 includes an impeller 6 which can rotate around the rotation axis of the drive shaft 32, and a housing space capable of housing the impeller 6 therein.

  As shown in FIG. 4, the impeller 6 has a rotary disc 61, a standing portion 62 and an extending portion 63.

  The rotary disc 61 is fixed to the lower end of the drive shaft 32. The rotary disc 61 rotates integrally with the drive shaft 32 about the rotation axis of the drive shaft 32. A plurality of cutter blades 61 a are formed at equal intervals in the circumferential direction at the outer peripheral edge portion of the rotating disk 61.

  The base end of the standing portion 62 is fixed to each of the upper surface and the lower surface of the rotating disc 61 opposed in the axial direction. In the standing portion 62 whose base end is fixed to the lower surface, a saw blade 62a is formed between the base end and the tip.

  An extending portion 63 extends in the rotational direction from the tip of each standing portion 62. Each extending portion 63 is opposed to the surface of the rotary disc 61 to which the base end of each upright portion 62 is fixed at a predetermined interval. A cutter blade 63 a is formed on the peripheral edge portion of the extending portion 63.

  As shown in FIG. 2, a stator is attached to the lower end in the axial direction of the slide rod 35. As shown in FIG. 3, the stator includes an umbrella-like member 8, a holding plate 91, a reinforcing ring 92, and a strainer 7.

  As shown in FIG. 3, the umbrella-like member 8 has a ring portion 81 having an opening 83 at the center, and an inclined plate portion 82 extending obliquely downward from the outer edge of the ring portion 81. The lower end in the axial direction of the slide rod 35 is fixed to the upper surface of the ring portion 81 of the umbrella-like member 8. The drive shaft 32 is inserted through the opening 83 of the umbrella-like member 8. A plurality of diamond shaped holes 84 are formed in the inclined plate portion 82 at equal intervals in the circumferential direction.

  The upper ends of the three holding plates 91 are fixed to the lower surface of the ring portion 81 of the umbrella-like member 8 and the lower surface of the inclined plate portion 82. As can be seen with reference to FIG. 5, the three holding plates 91 extend downward from the umbrella-like member 8 in a tripod shape. A reinforcing ring 92 is fixed to the lower end of each of the three holding plates 91. The three holding plates 91 can hold and fix the strainer 7 so as to be held between the upper end and the lower end, and the strainer 7 can be removed from the holding plate 91.

  As shown in FIG. 3, the strainer 7 has a peripheral wall body 71 of a cylindrical body which is a side peripheral surface thereof, and a cylindrical engagement ring 72 integrally provided on the outer periphery of the lower end portion of the peripheral wall body 71. . A large number of diamond-shaped holes 73 are formed in the entire peripheral wall 71 of the strainer 7.

  The strainer 7 is non-rotatably and removably engaged and fixed to the three holding plates 91 via the engagement ring 72. That is, the strainer 7 is detachable from the mixer head 4. The strainer 7 can be removed from the mixer head 4 and cleaned, and the residue of the solid-liquid mixture adhering to the strainer 7 can be removed easily and reliably.

  An umbrella-like member 8 is located on the upper side in the axial direction of the strainer 7. The opening 83 of the umbrella member 8 and the lower opening of the strainer 7 in the axial direction hit openings on both axial sides of the rotation axis of the impeller 6 in the housing space.

  The side peripheral surface of the accommodation space in which the impeller 6 is accommodated is surrounded by the cylindrical strainer 7 in which the hole 73 is formed in the peripheral wall 71 and the inclined plate portion 82 of the umbrella shaped member 8.

  The mixer head 4 can discharge the fluid and the dispersion object radially from the rotation shaft of the impeller 6 from the accommodation space through the diamond holes 84 of the umbrella member 8 and the diamond holes 73 of the strainer 7.

  As the impeller 6 rotates, the object to be dispersed is cut or crushed in the housing space by the cutter blade 61a of the rotary disc 61, the saw blade 62a of the standing portion 62, and the cutter blade 63a of the extending portion 63. .

  Further, as the impeller 6 rotates, the flow of the fluid and the dispersion target toward the inclined plate portion 82 of the strainer 7 and the umbrella-like member 8 which is the side circumferential surface of the accommodation space by the standing portion 62 and the extending portion 63 It is generated. The fluid and the object to be dispersed are discharged from the housing space radially from the rotation axis of the impeller 6, so that the inside of the housing space has a negative pressure.

  The negative pressure in the storage space causes the fluid and the object to be dispersed to be drawn into the storage space from the openings 83 of the umbrella-like member 8 which are the openings on both sides in the axial direction of the impeller 6 and the lower opening of the strainer 7 in the axial direction. It has become so. Due to the occurrence of local negative pressure in the storage space, there is no possibility that fluid and an object to be dispersed may be attracted to the storage space from other than the opening 83 of the umbrella member 8 and the lower opening of the strainer 7 in the axial direction. It can not be said that there is. However, during rotation of the impeller 6, suction of fluid and an object to be dispersed from the opening 83 of the umbrella member 8 and the lower opening in the axial direction of the strainer 7 is dominant.

  The flow of the fluid and the object to be dispersed toward the inclined plate portion 82 of the strainer 7 and the umbrella member 8 passes through the hole 84 of the rhombus of the umbrella member 8 and the hole 73 of the rhombus of the strainer 7. It is subdivided.

  A part of the flow of the fluid and the dispersion target toward the inclined plate portion 82 of the umbrella-like member 8 is reflected by the inclined plate portion 82, and the lower opening side in the axial direction of the strainer 7 which is the other opening side in the axial direction It is diverted to.

  By diverting a part of the flow of the fluid and the dispersion target, the flow of the fluid and the dispersion target discharged from the accommodation space prevents the suction of the fluid and the dispersion target from the opening 83 of the umbrella member 8 Can be suppressed. Therefore, even if the dispersion target floats on the surface of the fluid due to the difference in specific gravity of the fluid and the dispersion target, the dispersion target floating on the surface of the fluid from the opening 83 of the umbrella member 8 close to the surface of the fluid It can be sucked well into the storage space.

  After removing the strainer 7 from the mixer head 4, it is possible to loosen the handle fixing screws 34 d of the guide sleeves 34 c of the bearing unit 34 and slide the slide rods 35 toward the axially proximal end of the bearing sleeves 34 a It has become.

  FIG. 5 shows a state in which the stator from which the strainer 7 has been removed is slid along the axial direction of the drive shaft 32 to the proximal end side of the drive shaft 32 with the impeller 6 remaining.

  By sliding the stator in this manner, only the impeller 6 is left at the axial tip of the drive shaft 32. Therefore, the fluid attached to the impeller 6 and the residue of the object to be dispersed can be easily and reliably removed by washing.

  Although the said embodiment demonstrated the case where the container 5 was a substantially rectangular parallelepiped container body with a bottom with a lid which is separately formed with the main body frame 2, it is not limited to this. The container may be a container body with another shape, such as a substantially cylindrical shape with a closed bottom and a bowl shape.

  Although the said embodiment demonstrated the case where the base end of the standing arrangement part 62 was fixed to the up-and-down both surfaces which oppose in the axial direction of the rotating shaft of the rotating disc 61, it is not limited to this. The base end of the standing portion may be fixed only to one of both surfaces facing in the axial direction of the rotation shaft of the rotary disc, and the extending portion may extend in the rotational direction from the tip of the standing portion .

  Although the said embodiment demonstrated the case where the some cutter blade 61a was formed in the outer-periphery edge part of the rotating disc 61, the impeller 6 is not limited to this. In the impeller of the present invention, a plurality of cutter blades may not be formed on the outer peripheral edge portion of the rotating disk.

  In the above embodiment, the impeller 6 is described as having the saw blade 62a formed between the base end and the tip of the standing portion 62. However, the present invention is not limited to this. The impeller of the present invention may not have a saw blade-like portion between the proximal end and the distal end of the standing portion.

  In the above-described embodiment, the impeller 6 is described in the case where the cutter blade 63a is formed on the peripheral edge portion of the extension portion 63, but the present invention is not limited to this. In the impeller of the present invention, the cutter blade may not be formed at the peripheral edge of the extension.

  In the above-mentioned embodiment, although a stator was explained about a case where it has umbrella-like member 8, it is not limited to this. The mixer head of the present invention has no umbrella-like member, and the entire impeller is accommodated in the strainer, and the openings on both sides in the axial direction of the strainer are openings on both sides in the axial direction of the rotating shaft of the impeller. Good.

  Although the case where the umbrella-like member 8 exists in the axial direction upper side of the strainer 7 was demonstrated in the said embodiment, it is not limited to this. Depending on the specific gravity of the fluid and the object to be dispersed, the umbrella-like member may be on the axial lower side of the strainer when the object to be dispersed sinks to the bottom of the container.

  Although the said embodiment demonstrated the case where the hole 84 of the umbrella-like member 8 and the hole 73 of the strainer 7 were diamond-shaped, it is not limited to this. Any shape may be used as long as the object to be dispersed is subdivided when passing through the holes of the umbrella-like member and the holes of the strainer.

DESCRIPTION OF SYMBOLS 1 stand mixer 2 main body frame 3 drive device 4 mixer head 5 container 5a caster 6 impeller 7 strainer 8 umbrella-like member 21 leg 22 upright portion 23 caster 24 control panel 24a operation panel 25 arm portion 31 electric motor 32 drive shaft 33 reducer 34 bearing unit 34a bearing sleeve 34b support flange 34c guide sleeve 34d fixed screw with handle 35 slide rod 61 rotary disc 61a cutter blade 62 standing portion 62a saw blade-like portion 63 extending portion 63a cutter blade 71 peripheral wall 72 engagement ring 73 Hole 81 Ring portion 82 Inclined plate portion 83 Opening 84 Hole 91 Holding plate 92 Reinforcement ring

Claims (8)

In a mixer head which is insertable in a fluid and which uniformly disperses the dispersed object in the fluid by agitating the fluid with the dispersed object ,
An impeller that is rotatable about a rotational axis,
The impeller can be accommodated therein, and a side circumferential surface is formed with openings on both sides in the axial direction of the rotary shaft of the impeller, and holes capable of radially discharging the fluid and the dispersion object from the rotary shaft of the impeller. And a storage space having
The impeller is fixed to a rotary disk rotating around the rotation axis, and a base end thereof fixed to the surface opposite to the axial direction of the rotary disk, and erected in a direction perpendicular to the surface opposite to the axial direction Extending from the tip of the standing portion in the rotational direction so as to face the standing portion in parallel with the surface of the rotary disc to which the base end of the standing portion is fixed and in parallel with a predetermined distance. Has an extension and
The impeller has the standing portion and the extending portion on both sides of the rotary disc facing in the axial direction,
Due to the rotation of the impeller, the object to be dispersed is cut or crushed in the accommodation space, and a flow of fluid and the object to be dispersed toward the side circumferential surface of the accommodation space is generated.
The fluid and the object to be dispersed are discharged from the openings on both sides in the axial direction of the impeller by discharging the fluid and the object to be dispersed radially from the rotational axis of the impeller from the accommodation space. Mixer head characterized by having. The mixer head according to claim 1 , wherein a plurality of cutter blades are formed at an outer peripheral edge portion of the rotating disc. The cutter head is formed in the outer edge part of the rotation direction of the said extension part, The mixer head of Claim 1 or 2 characterized by the above-mentioned. The mixer head according to any one of claims 1 to 3 , wherein a saw blade-like portion is formed between the proximal end and the distal end of the standing portion. The mixer head according to any one of claims 1 to 4 , wherein the storage space is open in the axial direction and is surrounded by a cylindrical strainer having a hole formed on a side circumferential surface thereof. The mixer head according to claim 5 , wherein the strainer is detachably attached to the mixer head. The housing space is further covered with an umbrella-like member at one opening side in the axial direction,
The umbrella-like member is characterized in that it reflects a part of the flow of the fluid and the object to be dispersed toward the side circumferential surface of the accommodation space to turn it to the other opening side in the axial direction. or mixer head according to 6.   The mixer head according to claim 7, wherein the umbrella-like member is slidable and displaceable in the axial direction with respect to the impeller.

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