JPH1066852A - Mixing and agitating apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mixing and agitating apparatus enabling sanitary and uniform mixing and agitating and/or heating and also easily susceptible to washing. SOLUTION: This apparatus 10 has a agitating container 12 rotationarily symmetric in its axial direction, the rotary drive shaft 14 extending along the axial line of the agitating container 12 and the scraping blades 16 and stirring blades 18 respectively connected to the rotary drive shaft 14 to integrally revolve centering around the axial line direction and the scraping blades 16 scrape off the raw material bonded to the inner peripheral surface of the agitating container 12 and the stirring blades 18 rotate centering around stirring shafts 30 almost parallel to the axial line direction to form regions in the agitating container 12. In this case, each scraping blade 16 has a scraping raw material receiving surface 66 turned in a revolution direction on the advance side in the revolution direction and a predetermined clearance is provided between the outer edge of the scraping raw material receiving surface 66 and the inner peripheral surface of the stirring container 12 and the stirring region is positioned in the vicinity of the scraping part of the agitating container 12 formed by the outer edge.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mixing and stirring apparatus, and more particularly, to a mixing and stirring apparatus which enables sanitary and uniform stirring and / or heating, and can easily perform washing.

[0002]

2. Description of the Related Art A stirrer for accommodating and stirring a stirrer in a container is disclosed, for example, in Japanese Utility Model Laid-Open No. 57-76726. The stirring device includes a stirring vessel that is rotationally symmetric with respect to the axial direction, a rotation drive shaft that extends along the axis of the stirring vessel,
Each of the scraping blades and the stirring blades is connected to the rotary drive shaft at an angular interval of ° and revolves integrally around the axis, and the scraping blades are
An outer edge is arranged so as to contact an inner peripheral surface of the stirring vessel, and the outer edge slides on the inner peripheral surface by the revolution,
The stirring blade has a predetermined stirring radius, and is configured to form a stirring area in the stirring container by rotating around a rotation axis substantially parallel to the axis.
However, in such a stirring device, the stirring raw material that adheres or stops on the inner peripheral surface of the stirring container during the stirring is scraped off by the scraping blade, but the scraped stirring raw material is directly connected to the scraping blade. And is guided or accompanied, and tends to rotate in the stirring vessel together with the scraping blade. As a result, the scraped raw material was removed from the scraping blades by 18 minutes.
It becomes difficult to be stirred by the stirring blades located at a phase difference of 0 °, whereby even if the stirring blades revolve and the entire inside of the stirring container is stirred, uneven stirring occurs in the stirring container.

[0003] Further, since the outer edge of the scraping blade slides on the inner peripheral surface of the stirring vessel to scrape off the adhered raw material,
As time elapses, the scraper blades and / or the inner surface of the stirring vessel are worn. Especially when the stirring raw material is a food raw material, the abrasion powder may be mixed into the food raw material during the stirring,
Causes health problems. On the other hand, it is generally difficult to scrape off the raw material attached to the inner peripheral surface of the container by a non-contact method. Furthermore, since the scraping blade is swingable so that it can always slide on the inner peripheral surface of the stirring vessel, the structure is complicated, and the scraping blade attached by bolts or the like and the bolt are connected. The raw material remained, and the cleaning treatment was difficult. In view of the above, an object of the present invention is to provide a mixing and stirring device that enables sanitary and uniform mixing and stirring and / or heating and that can easily perform washing.

[0004]

In order to achieve the above object, a mixing and stirring apparatus according to the present invention comprises a stirring vessel which is rotationally symmetric with respect to an axial direction, and a rotary drive which extends along the axis of the stirring vessel. Shaft, each having a scraping blade and an agitating blade that are connected to the rotary drive shaft and revolve integrally around the axis, wherein the scraping blade is a material that adheres to an inner peripheral surface of the agitating container. In the mixing and stirring device in which the stirring blade is rotated around a stirring axis substantially parallel to the axis to form a stirring region in the stirring container, the scraping blade is directed in the revolving direction. A scraping material receiving surface on the advancing direction of the revolving direction, a predetermined clearance is provided between an outer edge of the scraping material receiving surface and an inner peripheral surface of the stirring vessel, and the outer edge is formed by the outer edge. The scraping portion near the stirring vessel, it is constituted to position the stir zone.

[0005] The stirring vessel has a cylindrical body,
A bottom plate in the shape of a mirror plate extending from the lower peripheral edge of the body,
The scraping blade has a triangular cross section in which the revolving direction advancing side is truncated with respect to the extending direction from the trunk portion to the bottom portion, and an opposing surface extending along the inner peripheral surface of the stirring vessel. Having an inclined surface forming a predetermined acute angle with respect to the facing surface, the truncated surface forming the scraping material receiving surface,
Further, it is preferable that the inclined surface forms a scraping material scooping surface at the bottom. Furthermore, it is preferable that the stirring shaft of the stirring blade is provided on the revolving direction advance side of the scraping blade. Furthermore, it is preferable that the outermost part of the stirring area is substantially in contact with the inner peripheral surface of the stirring vessel.

[0006]

According to the mixing / stirring apparatus of the present invention having the above-described structure, the mixed / stirred product is put in a stirring vessel which is rotationally symmetrical with respect to the axial direction, and is connected to a rotary drive shaft extending along the axis of the stirring vessel. When the scraping blade revolves around the axis, the raw material near the inner surface of the stirring vessel is received by the scraping raw material receiving surface oriented in the revolving direction, and is deposited around the outer edge of the scraping blade. In this way, the raw material deposited from the outer edge toward the inner surface can perform the scraping action of the inner surface instead of the outer edge of the scraping blade, so that the abrasion powder generated by the abrasion of the inner surface does not mix with the stirring raw material. In addition, the raw material on the inner surface of the container can be hygienically scraped off in a non-contact manner.

At this time, the stirring blade is revolved integrally with the scraping blade about the axis and further rotated about the stirring axis substantially parallel to the axis, whereby a stirring area is formed in the stirring vessel. This stirring area revolves around the axis in the stirring vessel. By appropriately selecting the position of the stirring shaft in the stirring vessel and the rotation radius, it becomes possible to position the stirring area near the scraping portion of the stirring vessel formed by the outer edge of the scraping blade, and thereby the scraping is performed. The mixed and agitated product can be guided to the agitation area without being left behind by the scraping blade and mixed and agitated, thereby achieving uniform mixing and agitation and / or heating of the processed material. it can. Furthermore, since the scraping blade is integrally formed and has a very simple structure, the cleaning can be performed reliably and easily.

[0008]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. 1 and 2 respectively
FIG. 2 is a side view of the mixing and stirring device according to the embodiment of the present invention, and a horizontal sectional view taken along line II-II in FIG. 1. In FIG. 1, reference numeral 10 denotes a mixing and stirring device. The mixing and stirring device 10 includes a stirring vessel 12, a rotation drive shaft 14 extending vertically along an axis AA of the stirring vessel 12, and a rotation drive shaft 14. A scraping blade 16 and a stirring blade 18 connected to each other,
Rotation driving means 2 for rotating this rotation driving shaft 14
0. The stirring vessel 12 has an axis A-
A thin container having a rotationally symmetrical shape with respect to the direction A, comprising a cylindrical body 12a and a head plate 12b attached below the cylindrical body 12a.
The container 12 is filled with the agitated and mixed processing product from the above, and is agitated and mixed and / or heated. Note that an upper lid 46 is provided from the viewpoint of preventing foreign matter from entering during mixing and stirring. The rotation drive shaft 14 extends downward from above the stirring vessel 12 toward the inside of the stirring vessel 12, and has an upper end connected to a rotation transmission mechanism 24 described later, and a lower end connected to the scraping blade 1 described later.
6 are respectively fixed to the rotating horizontal members 26. The rotation horizontal member 26 is provided on the axis of the stirring vessel 12 of the rotation drive shaft 14.
It is configured to make a horizontal swiveling motion in the stirring vessel 12 by rotation about AA.

The two scraping blades 16 are respectively connected to both ends of the rotary horizontal member 26 described above,
a extending toward the end plate portion 12b from the main body 12a, one of which extends substantially vertically downward along the inner peripheral surface of the cylindrical body 12a to the lower end of the body 12a, and the other extends to the cylindrical body 12a.
And extends to the bottom of the stirring vessel 12 along the inner peripheral surface of the end plate portion 12b. Each of the scraping blades 16 has a triangular cross section 60 with a truncated side in the revolving direction with respect to the extending direction, and an opposing surface 62 extending along the inner peripheral surface of the stirring vessel;
The inclined surface 64 has a predetermined acute angle with respect to the facing surface 62, for example, about 45 °. On the truncated surface, a scraping material receiving surface 66 oriented in the revolving direction is formed, and a predetermined clearance is provided between the outer edge 27 of the scraping material receiving surface 66 and the inner peripheral surface of the stirring vessel 12. When the scraping blade 16 revolves, the scraping blade 16 is configured not to contact the inner peripheral surface of the stirring vessel 12. As shown in FIG. 3, the inclined surface 64 has a function of scooping up the raw material scraped off by the end plate portion 12b above the container and guiding the raw material into the stirring area. At a middle position of the rotating horizontal member 26 eccentric from the axis AA, a vertical member 28 extending substantially parallel to one scraping blade 16 is attached, and a temperature sensor (not shown) is attached at the tip.

Two stirring blades 18 are arranged in the stirring vessel 12, and each blade 18 has a stirring shaft 30 extending in a vertical direction substantially parallel to the axis AA, and a stirring shaft fixed to the lower end of the stirring shaft 30. And the upper end of each stirring shaft 30 has an axis A-
It is connected to a rotation transmission mechanism 24 described later at a position decentered by a predetermined distance from A. As shown in FIG. 2, the two stirring shafts 30 are arranged at an angular interval of 180 ° in the circumferential direction, and each stirring shaft 30 is connected to the rotating horizontal member 26 on the advance side of the scraping blade 16 in the revolving direction. They are positioned at an angular interval of 30 ° circumferential angle. Each stirring unit 32
As shown in FIG. 1, the stirring diameter is smaller than the radius of the stirring vessel 12, has a spatula-shaped outer shape that is asymmetric with respect to the axis of the stirring shaft 30, and the outer edge 40 extends along the inner peripheral surface of the stirring vessel 12. , The inner edge 42 extends substantially parallel to the axis AA. Each stirring section 32 has an opening 4 from the viewpoint of reducing the flow resistance during stirring.
4 are formed. As described above, the stirring section 32 rotates around the stirring shaft 30 as shown in FIG. 2, thereby forming a stirring area (not shown) larger than at least the rotation radius R in the stirring vessel 12, and Area is outer edge 2
7 is formed in the vicinity of the scraping portion 34 on the inner peripheral surface of the stirring container 12. As shown in FIG. 2, the outermost part of the stirring area is substantially in contact with the inner peripheral surface of the stirring vessel 12, and the stirring area covers the entire inside of the stirring vessel 12 by the revolution of the stirring blade 18.

The rotary drive means 20 is composed of a drive motor of a known type, and is disposed above the mixing and stirring vessel 12.
The rotation shaft of the motor is connected to the rotation transmission mechanism 24,
The rotation of the motor causes the stirring blade 18 and the scraping blade 16 to revolve around the axis AA of the stirring container 12,
Further, each stirring blade 18 is configured to be able to rotate around a stirring shaft 30 as a center. In other words, the stirring blade 18 and the scraping blade 16 can be revolved integrally by a single drive motor, and the stirring blade 18 can be rotated on its own. The rotation transmission mechanism 24 will be briefly described. The rotation transmission mechanism 24 includes a well-known combination mechanism such as a gear mechanism and a bearing mechanism. The rotation force of the drive motor is indirectly transmitted to each agitation shaft 30 via the gear mechanism, and each agitation is performed. While the blades 18 are rotated around the respective stirring shafts 30, the rotation is performed while the stirring shaft 30 is free to rotate by a bearing mechanism disposed around the stirring shaft 30 by the rotational force directly transmitted to the rotation transmission mechanism 24. Each stirring shaft 30 eccentrically arranged in the transmission mechanism 24 can revolve around the axis AA. The operation of the mixing and stirring device 10 having the above configuration will be described below with reference to FIG.

First, the processing object is filled into the mixing and stirring vessel 12, and then the driving motor 20 is driven to drive each of the mixing and stirring vessels in FIG.
The stirring blade 18 and the scraping blade 1
6 is revolved as a unit around the axis AA,
Each stirring blade 18 is rotated around each stirring shaft 30. The revolution direction of the stirring blade 18 and the scraping blade 16 and the rotation direction of the stirring blade 18 may be the same direction or the opposite direction. At this time, among the processed products on the inner peripheral surface of the mixing and stirring container 12, those having a height higher than the clearance inside the container are first scraped off by the outer edge 27 of the scraping blade 16 being in direct contact, The scraped material is received by the scraped material receiving surface 66 oriented in the revolving direction, and is deposited there. Then, the treated material gradually accumulates toward the inner peripheral surface of the container 12, that is, the clearance decreases, thereby replacing the scraping blade 16.
The accumulated processed material scrapes the processed material on the inner peripheral surface of the container 12. Therefore, even if a predetermined clearance is provided between the outer edge of the scraping blade 16 and the inner peripheral surface of the container 12, the scraping can be performed in a non-contact manner. The clearance may be appropriately selected depending on the amount and physical properties of the stirring raw material, particularly the viscosity.

Further, as shown in FIG. 4, a stirring area is formed in the immediate vicinity of the scraping section 34, that is, since the outermost portion of the stirring area passes immediately in the vicinity of the scraping section 34, Is directly taken or guided into the stirring area of the stirring blade 18 which rotates, and is sufficiently stirred.
Also, in the end plate portion 12b, the revolving inclined surface 64 scoops up the scraped raw material toward the upper part of the container and guides the raw material to the stirring area. Also in the cylindrical body 12a, the revolving inclined surface 64 pours the scraped raw material into the container and guides it to the stirring area. The above operation is performed for each blade 16, 1
8 is performed over the entire inner circumference of the mixing and stirring vessel 12, the stirring area formed by the rotation of the stirring blade 18 can cover the entire inside of the stirring vessel 12, This makes it possible to prevent the effect of the agitation of the processed material from being biased depending on the location in the agitating container 12. Here, the processed material may be received by the raw material receiving surface of the scraping blade, and may have physical properties capable of staying there.
For example, foodstuff raw materials such as roast, dough, bean paste, kneaded spices such as kneaded wasabi and the like can be mentioned, but are not limited thereto. In particular, it is effective for a processed material having a dough-like physical property to which a powder raw material is bound.

When the mixing and stirring vessel 12 is used as a heating vessel by providing a jacket mechanism on the outer wall, it is possible to achieve not only uniform stirring but also uniform heating. Therefore, it is possible to uniformly mix, stir and heat the dough-like raw material to which the powder raw material, which has been liable to be burnt, is bound. While the preferred embodiment of the present invention has been described above, various changes may be made to the embodiment disclosed within the scope of the technical matters described in the claims without departing from the scope or spirit of the present invention. be able to. For example, the circumferential angle between the stirring shaft 30 and the scraping blade 16 is limited to 30 ° as long as the stirring region is positioned near the scraping portion by increasing and decreasing the rotation radius R together with the position of the stirring shaft. It will not be done. In this embodiment, two sets of the stirring blade 18 and the scraping blade 16 are arranged at an angular interval of 180 ° in the circumferential direction. One set or three or more sets may be appropriately selected in consideration of the internal volume and the like.

[0015]

As is clear from the above description, according to the mixing and stirring apparatus of the present invention, the scraping material receiving surface is provided on the advance side in the revolution direction to scrape the stirring material on the inner peripheral surface of the stirring vessel. By taking and receiving, by guiding to the stirring area formed in the vicinity of the scraping part, the scraped raw material can be guided to the stirring area without leaving it as it is, so that the stirring raw material is uniformly stirred and / or Heating can be achieved. In addition, since the agitated raw material on the inner surface of the agitating container can be scraped off in a non-contact manner with the inner surface of the agitating container, the agitating and / or heating can be performed hygienically especially for food materials. Further, since the scraping blade does not need to be brought into sliding contact with the inner peripheral surface of the container, its structure can be simplified, so that cleaning can be performed reliably and easily.

[Brief description of the drawings]

FIG. 1 is a side view of a mixing and stirring device according to an embodiment of the present invention.

FIG. 2 is a horizontal sectional view taken along line II-II in FIG.

FIG. 3 is a cross-sectional view of the scraping blade as viewed from an arrow III in FIG. 1;

FIG. 4 is a schematic plan view showing a scraping action of a scraping blade.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 mixing and stirring device 12 mixing and stirring container 14 rotation drive shaft 16 scraping blade 18 stirring blade 20 drive motor 22 upper opening 24 rotation transmission mechanism 26 rotating horizontal member 27 outer edge 28 vertical member 30 stirring shaft 32 stirring portion 34 scraping portion 40 outer edge 42 Inner edge 44 Opening 46 Top lid 60 Truncated triangular cross section 62 Opposing surface 64 Inclined surface 66 Scraping material receiving surface

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor ▲ Too ▼ Takayuki Moto 1-5-7 Mikitei Sakaecho, Higashi Osaka-shi, Osaka House Foods Co., Ltd. House Foods Co., Ltd. (7-7) House Foods Co., Ltd.

Claims (4)

[Claims] An agitating container rotationally symmetrical with respect to an axial direction, a rotary drive shaft extending along the axis of the agitating container, and a scraper blade connected to the rotary drive shaft and revolving integrally around the axis. And a stirring blade, wherein the scraping blade scrapes the raw material attached to the inner peripheral surface of the stirring container, and the stirring blade rotates around a stirring axis substantially parallel to the axis. In the mixing and stirring device that forms a stirring region in the stirring container, the scraping blade has a scraping material receiving surface facing the revolving direction on the revolving direction advancing side, and an outer edge of the scraping material receiving surface. A predetermined clearance is provided between the stirring vessel and the inner peripheral surface of the stirring vessel, and the stirring area is positioned near a scraping portion of the stirring vessel formed by the outer edge. Mixing and stirring equipment. 2. The stirring vessel has a cylindrical body and a mirror-plate-shaped bottom extending from a lower peripheral edge of the body, and the scraping blade extends from the body to the bottom. An abutting surface having a triangular cross section with a truncated truncated side in the revolving direction with respect to the extending direction, extending along the inner peripheral surface of the stirring vessel, and an oblique surface forming a predetermined acute angle with respect to the opposing surface The mixing and stirring device according to claim 1, wherein the truncated surface forms the scraping material receiving surface, and the inclined surface forms a scraping material scooping surface at the bottom. 3. The mixing and stirring device according to claim 1, wherein the stirring shaft of the stirring blade is provided on a side of the scraping blade that advances in the revolution direction. 4. The stirrer according to claim 1, wherein an outermost part of the stirring area is substantially in contact with an inner peripheral surface of the stirring vessel.
Item 7. The mixing and stirring device according to Item 1.