JP2007160186A - Agitation apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an agitation apparatus in which a circulation part is arranged at the bottom of an agitation vessel, so that a circulation flow crossing an agitation flow formed by rotating an agitation shaft can be formed. <P>SOLUTION: The agitation apparatus is provided with: the agitation vessel 1 the inside surface of whose bottom 9 is formed into a spherical shape at least; the agitation shaft 3 the working part of which is inserted into the agitation vessel 1; a supporting pole 5 which is fit to the agitation shaft 3 and has a plurality of scraping blades 25 for scraping/sliding on the inside surface of the bottom 9 at least by rotating the agitation shaft 3; and a rotary driving part 21 for rotary driving the agitation shaft 3. The circulation part is arranged at the bottom 9 of the agitation vessel 1, so that the circulation flow crossing the agitation flow formed by rotating the agitation shaft can be formed. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a stirrer optimal for the production of foods, cosmetics, pharmaceuticals, chemicals and the like that require emulsification such as mayonnaise and dressing.

  Conventionally, as this kind of agitation apparatus, there is one as described in Japanese Utility Model Publication No. 62-10034, for example. This stirrer includes a stirrer provided with an arc-shaped support rod on a stirring shaft disposed in a heating kettle, a plurality of scraping blades attached to the arc-shaped support rod, and a vertical shaft from above in the kettle. In combination with a screw stirrer inserted with a vortex, both the stirrers can be driven simultaneously to give a complex movement to the agitated material in the kettle so that the agitated material can be agitated and mixed. Is.

Japanese Utility Model Publication No. 62-10034

  By the way, in the stirring apparatus as described above, since a screw stirrer having a vertical shaft inserted from above into the pot, that is, a hanging type cutter, is used, both stirring states are approximated and the stirring object is complicated. There was a limit to stirring.

  A stirring vessel having an inner surface of at least a bottom portion formed into a spherical shape, a stirring shaft in which an action portion can be inserted into the stirring vessel, and an inner surface of the at least bottom portion by rotation of the stirring shaft attached to the stirring shaft. A support rod provided with a plurality of scraping blades that scrape and slide, and a rotation drive unit that rotationally drives the stirring shaft, and intersects the stirring flow caused by the rotation of the stirring shaft at the bottom of the stirring vessel. A circulation portion for forming a circulation flow is provided.

  In the present invention, in a stirring device in which the inner surface of the bottom portion is formed in a spherical shape, a support rod provided with a scraping blade is rotated via a stirring shaft to stir and mix the object to be stirred in the stirring vessel. On the other hand, since the circulation part that forms a circulating flow intersecting the stirring flow caused by the rotation of the stirring shaft is provided, coupled with the high stirring and grinding effect of this circulating part, the stirring and grinding can be performed more efficiently. In addition, it is possible to achieve miniaturization.

  1 to 4 show Embodiment 1 of the present invention. FIG. 1 is a partial cross-sectional schematic diagram of a stirring device to which Example 1 of the present invention is applied, FIG. 2 is a partial cross-sectional enlarged front view showing a cutter device as a main part, i.e., a circulation part, FIG. 4 is an overall schematic plan view of the same as above. FIG.

  The stirrer to which the first embodiment of the present invention is applied includes a stirrer 1, a stirrer shaft 3, a support rod 5, and a cutter device 60 as a circulation unit.

  The stirring vessel 1 is configured such that at least the inner surface of the bottom 9 is formed in a spherical shape, and at least the bottom is heated. In other words, the stirring vessel 1 is formed by integrally forming a cylindrical body portion 7 and a hemispherical bottom portion 9, and a jacket 11 is provided in a closed cross section around the outer surface on the bottom portion 9 side. The jacket 11 is configured to supply and discharge heating steam from the outside by external control. The stirring vessel 1 is supported via legs 13a and 3b. The bottom portion 9 of the stirring vessel 1 is provided with a flange portion 10 for attaching a cutter device 60 as the circulation portion, and a discharge port 17 for a food material drain at the lowermost portion.

  In this embodiment, as shown in FIG. 1, the cutter device 60 serving as the circulation unit is connected to the flange portion 10 formed on the bottom portion 9 of the stirring vessel 1, and the axis of the cutter device 60 is connected to the stirring shaft 3. It is detachably attached via a flange-like attachment portion 61 so as to coincide with the axis. However, the attachment position of the cutter device 60 does not necessarily have to be attached so that the axes coincide with each other as described above, and the discharge port 17 for the agitated object drain provided in the lower center portion of the bottom portion 9 and the cutter. If it is a position where the device 60 is provided, there will be no functional problem described later.

  In FIG. 2, reference numeral 12 denotes a seal member, which is attached between the inner peripheral surface of the flange portion 10 formed on the bottom portion 9 of the stirring vessel 1 and the outer peripheral surface of the cutter device 60. This prevents liquid leakage between devices.

  Further, as shown in FIG. 2, the cutter device 60 serving as a circulation unit is detachably attached to the cutter drive unit 62 having an attachment portion 61 to the stirring vessel 1 and the cutter drive unit 62. The cutter body 63 is configured.

  The cutter driving unit 62 includes a driving machine 64 such as an electric motor and a housing 65 that is detachably attached to the output side of the driving machine 64, and is attached to an outer peripheral wall on the free end side of the housing 65 from a mounting flange. The mounting portion 61 is integrally formed.

  An output shaft 66 is provided on the output side of the drive unit 64, and a free end of the output shaft 66 protrudes from a free end surface 65 a of the housing 65.

  The cutter body 63 includes a cylindrical body 67 that is detachably attached to the free end surface 65a of the housing 65, and a cutter member 68 that is detachably attached by a mounting nut 68a on the free end side of the output shaft 66. Has been.

  A through hole 69 is provided around the cylindrical body 67 at a position facing a cutter 68b, which will be described later, and a flange 67a is integrally formed on the attachment side to the housing 65. The cylindrical body 67 is attached to the housing 65 by placing the flange 67a on the housing 65 and fastening the attachment bolt 67b.

  The cutter member 68 includes a disk-shaped substrate 68c, and the substrate 68c is formed to rotate around the axis by the rotation of the output shaft 66 along the inside of the cylindrical body 67, and the cutter 68b is formed on the upper surface thereof. Are attached radially, and the outer peripheries of the cutter 68 b and the substrate 68 c are in sliding contact with or close to the cylindrical body 67.

More specifically, when the support rod 5 is driven via the agitation shaft 3 by driving the rotation drive unit 21 as described above, the agitation rod 5b rotates around the axis of the agitation shaft 3, and one point is shown in FIG. As indicated by the chain line, a stirring flow 40 is generated around the stirring shaft 3 to stir the object to be stirred in the container.
Here, when the circulating portion 60 that can form the circulating flow 50 intersecting the stirring flow 40, that is, the driving device 64 of the cutter device 60 is driven, the cutter member 68 rotates in the cylindrical body 67, and the upper surface thereof. As shown by a two-dot chain line in FIG. 1, a circulating flow 50 intersecting the stirring flow 40 is generated by the cutter 68b provided in FIG. 1, and a strong stirring pulverization force and suction force are generated.

  That is, the cutter device 60 that constitutes the circulation unit circulates the object to be stirred in the stirring vessel 1 from the center side of the stirring vessel 1 as shown by a two-dot chain line and discharges it along the inner surface of the bottom portion 9. A stream 50 is formed.

  Due to this powerful suction effect, the object to be stirred in the container 1, in particular, near the bottom 9 that tends to stagnate, can be called into the cutter member 68, and the called object to be stirred constitutes the cutter member 68. The strong centrifugal force generated by the cutter 68b is used to radiate outward.

  At this time, the crushing effect (milling effect) of the object to be stirred is obtained by the clearance formed between the outer end portion of the cutter 68b and the inner peripheral surface of the cylindrical body 67. The object to be agitated to which a high shearing force is applied at such a high speed is pushed out from the through-hole 69 provided around the cylindrical body 67 at an interval, and the object to be agitated is agitated. It circulates along the inner side of the container 1, and stirring and pulverization is continuously continued, so that the object to be stirred can be refined and equalized.

  In addition, since the cutter device 60 can be attached to and detached from the flange portion 10 of the stirring vessel 1 via the attachment portion 61 as described above, the detachability to the stirring vessel 1 can be improved, and cleaning is facilitated. Furthermore, the cutter member 68 can be easily changed according to the type of the object to be stirred, and the compatibility with various types of objects to be stirred can be greatly improved.

  Furthermore, since the rotation center axis | shaft of the cutter apparatus 60 has been arrange | positioned on the extension line of the said stirring shaft 3, the stirring force near the extension line of the stirring shaft 3 in which stirring force becomes the weakest can be improved significantly.

  Further, as described above, when the cutter device 60 is detachably attached to the flange portion 10 formed on the bottom portion 9 of the stirring vessel 1 through the attachment portion 61 formed in a flange shape, the cutter device 60 is attached. The upper portion of the cylindrical body 67 of the cutter main body 63 is attached so as to be positioned inside an annular portion 5a (described later) formed below the support rod 5 as shown in FIG.

  That is, the support rod 5 is provided with an annular portion 5a orthogonal to the axis of the agitation shaft 3, and the upper portion of the cylindrical body 67 is disposed so as to face the annular portion 5a. It is. Accordingly, when the cutter device 60 is driven, a circulating flow 50 that sucks the object to be stirred in the stirring vessel 1 from the center side of the stirring vessel 1 and discharges it along the inner surface of the bottom portion 9 as indicated by a two-dot chain line. The formation of can be promoted.

  At the upper end of the stirring vessel 1, a lid 19 that is attached so as to close the upper opening of the stirring vessel 1 and is detachable from the stirring vessel 1 is provided. That is, the lid 19 can be remounted so as to rise to the state shown by the chain line in FIG. 3 and to close the upper opening of the stirring vessel 1 again as shown by the solid line in FIG. .

  The agitation shaft 3 is supported on the lid body 19 side, and its action part is inserted and arranged in the agitation container 1 and is rotationally driven by a rotation drive part 21. The stirring shaft 3 is disposed obliquely with respect to the stirring container 1.

  The upper side of the stirring shaft 3 is rotatably supported on the lid 19 side, and the upper end thereof is interlocked and connected to the rotation drive unit 21. The rotation drive unit 21 is configured by, for example, a drive motor.

  The support rod 5 is attached to the stirring shaft 3 and includes a plurality of scraping blades 25 that scrape and slide at least the inner surface of the bottom 9 by rotation of the stirring shaft 3 at a predetermined interval. However, in FIG. 1, only one set of scraping blades 25 is shown, and the others are omitted.

  The scraping blades 25 are formed asymmetrically with respect to the stirring shaft 3, and the entire inner surface of the bottom 9 can be scraped off by the scraping blades 25 by the rotation of the stirring shaft 3. The scraping blade 25 is supported so as to be able to slightly swing with respect to the support rod 5, and when scraping and sliding on the inner surface of the bottom portion 9, the scraping blade 25 receives resistance from an object to be stirred and is pressed against the inner surface of the bottom portion 9. It has become.

In this embodiment, the support rod 5 is provided with an annular portion 5a centered on the axis of the agitation shaft 3 below the support rod 5, and the cutter 5 as described above is disposed inside the annular portion 5a. It arrange | positions so that the head of the cylinder 67 which comprises the main body 63, ie, the front-end | tip of the cutter apparatus 60, may protrude. (See Figure 1)
As described above, the support rod 5 is provided with the annular portion 5a orthogonal to the axis of the stirring shaft 3, and the upper portion of the cylindrical body 67 is disposed so as to face the annular portion 5a. It is made to do. Accordingly, when the cutter device 60 is driven, a circulating flow 50 that sucks the object to be stirred in the stirring vessel 1 from the center side of the stirring vessel 1 and discharges it along the inner surface of the bottom portion 9 as indicated by a two-dot chain line. The formation of can be promoted.

  Further, as shown in FIG. 1, a stirring bar 5 b configured by combining a plurality of rod-shaped bodies is provided on the inner peripheral side of the support rod 5, and the stirring shaft 3 is driven by driving the rotation driving unit 21. When the support rod 5 is driven, the stirring rod 5b rotates around the axis of the stirring shaft 3 and can efficiently stir while the objects to be stirred in the container are equalized.

  In addition, in this embodiment, as described above, the circulation portion 60 that forms the circulating flow 50 intersecting the stirring flow 40 by the rotation of the stirring shaft 3, that is, the cutter device 60 is provided. Combined with the high stirring and pulverizing effect, the object to be stirred can be further stirred with high efficiency and refined.

  The rotational drive unit 21 is disposed on the lid body 19 side. That is, the rotation drive unit 21 is fixed to the lid body 19. The lid 19 side in which the agitation shaft 3, the support rod 5, and the drive unit 21 are integrated is lifted up and down by the lift drive unit 29 to the state shown by the chain line in FIG. . The lift drive unit 29 will be described with reference to the side view of FIG.

  As shown in FIGS. 1, 3, and 4, the lifting drive unit 29 includes a guide post 31, and a piston cylinder device 33 is provided at the center of the guide post 31. The upper end is coupled to the lower surface of the support block 37, and hydraulic pressure is supplied to and discharged from the piston cylinder device 33 by a lower hydraulic pressure generating device 39.

  The rotation drive unit 21 is disposed on the upper surface of the lid 19, and the bracket 27 and the rotation drive unit 21 are integrated. In this case, since the stirring shaft 3 is disposed obliquely with respect to the stirring container 1 and the rotation drive unit 21 is disposed on the lid body 19, even the heavy rotation drive unit 21 can be supported without difficulty and driven up and down. It can be done.

  Next, the operation will be described. First, when the food material that is to be stirred is put into the stirring container 1, for example, the lid 19 side is raised to the state shown by the chain line in FIG. 3, and then the food material is fed from the upper end opening of the stirring container 1. However, when the inlet 19 is provided in the lid 19 as in the present embodiment, it can be performed by opening the inlet 20 without raising the lid 19 when the food is added.

  The lid 19 is moved up and down by driving the lifting drive unit 29. When the hydraulic pressure is supplied to the piston cylinder device 33 by the hydraulic pressure generator 39 in the state shown by the solid line in FIG. 1, the piston rod extends. With the extension of the piston rod, the support block 37 rises, and the lid 19 side rises to the state shown by the chain line in FIG. 3 with the stirring shaft 3, the support rod 5, and the drive unit 21 integrated. The positioning at the raised position is performed by mechanical engagement means that detects the position by, for example, a limit switch and keeps the generated hydraulic pressure of the hydraulic pressure generating unit 39 constant or automatically engages and disengages. it can.

In addition, in this embodiment, as described above, the circulation unit 60 that forms the circulating flow 50 intersecting the stirring flow 40 by the rotation of the stirring shaft 3, that is, the cutter device 60 is provided. Combined with the high stirring and pulverization effect, the object to be stirred can be further stirred with high efficiency and can be further miniaturized. (See Figure 1)
More specifically, the stirring flow 40 generated by the rotation of the stirring shaft 3 tends to be a steady flow, whereas the circulating portion 60 that forms the circulating flow 50 intersecting with the stirring flow 40, that is, the circulating flow 50 generated by the cutter device 60. Is able to reliably disturb the stirring flow 40 due to the formation of a jet as described above, and can efficiently stir the object to be stirred in combination with the high stirring and pulverizing effect of the cutter device 60. It can also be refined, and is optimal for the production of foods that require emulsification, especially cosmetics, pharmaceuticals, and chemicals that require ultra-fine and ultra-homogeneous stirring.

  In addition, with only the stirring flow 40 described above, the stirring object tends to accumulate at the lowest portion of the spherical bottom portion 9, but the stirring object in this portion can be raised by the circulating flow 50, and the inside of the stirring container The whole can be reliably agitated and the occurrence of uneven agitation of the object to be agitated can be reliably prevented.

  After cooking the food, the food is discharged from the outlet 17 by opening a valve (not shown). After discharging, the valve is closed and the inside of the stirring vessel 1 is cleaned. In this cleaning, the lid 19 or the inlet 20 is opened to supply the cleaning liquid into the stirring vessel 1, the lid 19 or the inlet 20 is closed again, the stirring shaft 3 is rotated, and the support rod 5 and the scraper 5 are removed. The inside of the stirring vessel 1 can be stirred and washed by the rotation of the blade 25.

  In addition, by supplying a cleaning liquid from the outside to the shower ball 22 provided on the lid 19, it is possible to spray the cleaning liquid into the stirring container 1 while the lid 19 is closed, and perform the agitation washing in the same manner as described above.

  As described above, the cutter device 60 can be attached to and detached from the stirring container via the mounting portion 61. Therefore, the attachment and detachability to the stirring container 1 can be improved. The cutter member 68 can be easily changed according to the type, and the compatibility with various types of objects to be stirred can be greatly improved.

  This confirmation of cleaning can be performed by raising the lid 19 side to the state shown by the chain line in FIG. When the lid body 19 is raised, the lid body 19 side is exposed to the outside up to the support rod 5 and the scraping blade 25, so that the food remains on the support rod 5 and the scraping blade 25. It can be easily confirmed. Further, when the lid 19 is raised to the state shown by the chain line in FIG. 1, the inside of the stirring container 1 can be easily looked into, and the cleaning state in the stirring container 1 can be easily confirmed. Therefore, the entire cleaning of the heating and stirring device can be performed accurately and quickly.

  5 and 6 show a second embodiment of the present invention. FIG. 5 is a partial cross-sectional schematic view showing the main part of a stirring device to which Example 2 of the present invention is applied, and FIG. 6 is a partial cross-sectional schematic view showing the main part of the stirring device to which Example 2 of the present invention is applied. is there.

  The main structure of the stirring device to which the second embodiment of the present invention is applied is the same as that of the stirring device to which the first embodiment is applied. Therefore, only the parts different from the first embodiment will be described.

  A feature of the stirring device to which the second embodiment is applied is that the support rod 5 is provided with a circulation flow facilitating means 70 for pressurizing the object to be stirred toward the circulating portion (cutter device) 60 and the support in the first embodiment. In the second embodiment, the annular portion 5a provided below the flange 5 is stopped, and the left and right free ends of the support rod 5 and the mounting rod 71 of the circulation flow promoting means 70 extending from the stirring shaft 3 are free. It is the point which connected the end with the stirring rod 5c.

  In this embodiment, the support rod 5 is configured by connecting the left and right free ends thereof and the free end of the mounting rod 71 of the circulation flow promoting means 70 extending from the stirring shaft 3 with a stirring rod 5c.

  In this embodiment, as shown in FIGS. 5 and 6, the circulation flow promoting means 70 is composed of left and right stirring blades 72 formed in a paddle shape. When the support rod 5 is rotated clockwise, the object to be stirred is moved. It is attached to the attachment rod 71 at an elevation angle so that it can be pressed downward, that is, toward the cutter device 60.

  Therefore, when this stirring device is driven, the support rod 5 rotates clockwise to pressurize the object to be stirred downward, that is, toward the cutter device 60. As a result, the cutter device 60 constituting the circulation unit is driven. The generated circulating flow 50 is further promoted, and the stirring force near the extension line of the stirring shaft 3 where the stirring force becomes the weakest can be greatly improved.

  In this embodiment, the circulation flow facilitating means 70 is composed of left and right stirring blades 71 formed in a paddle shape, as shown in FIGS. A stirring blade may be provided.

It is a partial cross section whole schematic diagram of the stirring apparatus to which Example 1 of this invention is applied. It is a partial cross section enlarged front view which shows the principal part of the stirring apparatus to which Example 1 of this invention is applied, ie, the cutter apparatus as a circulation part. It is a whole schematic front view which shows the raising / lowering state of the cover body in the stirring apparatus to which Example 1 of this invention is applied. BRIEF DESCRIPTION OF THE DRAWINGS It is the whole schematic plan view of the stirring apparatus to which Example 1 of this invention is applied. It is a partial cross section schematic diagram which shows the principal part of the stirring apparatus to which Example 2 of this invention is applied. It is a partial cross section schematic diagram which shows the principal part of the stirring apparatus to which Example 2 of this invention is applied.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Stirring container 3 Stirring shaft 5 Supporting rod 5a Ring part 9 Bottom part 19 Cover body 21 Rotation drive part 23 Tip of stirring shaft 25 Scraping blade 29 Lifting drive part 40 Stirring flow 50 Circulating flow 60 Circulating part (cutter device)
61 Mounting part (Mounting part formed in a flange shape)
62 Cutter Drive Unit 63 Cutter Body 67 Cylinder 68 Cutter Member 69 Through-hole 70 Circulation Flow Promoting Means

Claims (9)

A stirring vessel having at least an inner surface of the bottom formed in a spherical shape;
An agitation shaft in which the action part can be inserted into the agitation container;
A support rod provided with a plurality of scraping blades attached to the stirring shaft to scrape and slide at least the inner surface of the bottom by rotation of the stirring shaft;
A rotational drive unit that rotationally drives the stirring shaft,
A stirrer characterized in that a circulation part that forms a circulation flow that intersects with a stirring flow by rotation of the stirring shaft is provided at the bottom of the stirring vessel. The stirring device according to claim 1,
The said circulation part sucks in the to-be-stirred thing in the said stirring container from the stirring container center part side, and discharges it along the stirring container bottom part inner surface. The stirring device according to claim 2,
The said circulation part is a cutter apparatus which chops and sucks out the to-be-stirred thing to be sucked. The stirring device according to claim 3,
The said cutter apparatus comprised from the cutter drive part provided with the attaching part to the said stirring container, and the cutter main body provided in this cutter drive part, The stirring apparatus characterized by the above-mentioned. The stirring device according to claim 4,
The cutter body is composed of a cylindrical body that is attached to the cutter driving portion side and has a through hole at an interval, and a cutter member that is arranged so as to be rotatable around the axis along the inner side of the cylindrical body. A stirrer characterized by. The stirring device according to any one of claims 1 to 5,
The circulating unit has an agitation device characterized in that the center of rotation is disposed on or offset from the extension line of the agitation shaft. The stirring device according to any one of claims 1 to 6,
An agitation device characterized in that an annular part perpendicular to the agitation shaft is provided on the support rod, and a tip of the circulation part is made to face the annular part. The stirring device according to any one of claims 1 to 7,
The stirring device, wherein the stirring shaft is disposed obliquely with respect to the stirring container. The stirring device according to any one of claims 1 to 8,
A stirrer characterized in that a circulation flow facilitating means for pressurizing an object to be stirred toward the circulation part is provided on the support rod.

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