JPS5949053B2 - mixing agitator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a mixing and stirring machine that is primarily used when adding frozen surimi, which is a raw material for pastry products such as kamaboko, and additives to form a mixed product before molding. be.

As shown in Figure 4, conventional mixing agitators can be roughly divided into:
The stirrer J has a horizontal stirring blade e structure installed on the vertical rotation axis d, and the stirrer J has a vertical stirring blade g structure installed on the horizontal rotation axis f as shown in FIG. The stirrer J has high mechanical efficiency because the rotating stirring blades (e) act effectively against the flow of the input raw material in the direction of gravity, but it is necessary to reverse the stirring vessel when discharging the stirred raw material. In addition, it was difficult to remove the stirring raw material adhering to the inner surface of the stirring vessel during inversion, resulting in extremely low work efficiency.

In addition, the other type of stirrer with a vertical stirring blade structure (Japanese Patent Application Laid-Open No. 51-28252) has high work efficiency because it uses gravity to input and discharge raw materials in a vertical direction. Stirring blade g in the direction parallel to the gravity direction of the raw material
Because the container i rotates, the flow of the raw materials is poor, and mixing from left to right in the container i is particularly poor, requiring long mixing times, resulting in extremely low mechanical efficiency.

The present invention was made by researching the above-mentioned drawbacks of the conventional mixer and agitator, and completed a new mixer and agitator with a new structure that takes advantage of the advantages of both structures and eliminates the drawbacks. The object of the present invention is to provide a mixing agitator which has a high mixing and agitating efficiency (mechanical efficiency) due to an inclined agitating blade structure and a spherical container structure, and which also has a high working efficiency due to a material dumping and discharging structure that utilizes gravity.

That is, in order to achieve this object, the mixing agitator of the present invention includes a spherical container 1 having a spherical inner surface, and a mixed raw material input port 2 that opens at the top of the container 1 and is provided with an opening/closing lid 3. , a mixed product outlet 4 which opens at the bottom of the container 1 and has an opening/closing lid 5, a low-speed rotating shaft 6 disposed obliquely downward from the upper side of the container 1 toward the center of the ball, and a coaxial shaft 6. A semicircular arc-shaped scraping blade 7 along the inner surface of the container 1 provided in the
a high-speed rotating shaft 8 disposed obliquely upward from the lower side of the container 1 to face the low-speed rotating shaft 6; and a plurality of stirring blades 9 provided from the tip to the base end of the same shaft 8; Equipped with
In addition, the scraping blades 7 are formed as inclined scraping blades that push the raw material inward, and each of the stirring blades 9 has an inclined cutting edge surface 9a formed on the lower surface side.

Next, the mixing agitator of the present invention will be explained in detail below with reference to an embodiment shown in the drawings.

First, as shown in FIG. 1, the spherical container 1 has a spherical inner surface for good raw material flow, and has a two-part opening/closing structure for internal cleaning, blade replacement, etc.

Next, the mixed raw material input port 2 is opened at the top of the spherical container 1, and the input port 2 is equipped with an opening/closing lid 3 having a sliding structure that matches the spherical inner surface of the spherical container 1 in the closed state. There is.

Further, the mixed product outlet 4 is opened at the bottom of the spherical container, and the outlet 4 is also equipped with an opening/closing lid 5 like the input port 2.

In the embodiment, the mixed raw material inlet 2 is opened wider than the mixed product outlet 4 to facilitate the input of the raw material, since a lump of frozen surimi may be input as the raw material.

Next, a low-speed rotating shaft 6 is arranged obliquely downward from the upper side of the spherical container 1 toward the center of the sphere, and an electric motor 10 serving as a driving means is directly connected to the same shaft 6.

The scraping blade 7 is provided on the low-speed rotating shaft 6 in a semicircular arc shape along the inner surface of the spherical container 1, and
In the embodiment, as shown in FIG. 3, it is composed of a creeping piece 7a and a semicircular arc attachment arm 7b, and is configured to push the surrounding raw material inward of the container 1 (approximately in the direction of the spherical center). It is used as a sloped scraping blade.

Next, the high-speed rotation shaft 8 is arranged obliquely upward from the lower side of the spherical container 1, facing the low-speed rotation shaft 6, and
An electric motor (not shown) serving as a driving means is connected to the coaxial shaft 8 by belt transmission. In addition, a mechanical seal structure is adopted for the coaxial 8 to withstand high-speed rotation.

A plurality of stirring blades 9 (three in the embodiment) are provided from the tip to the base of the high-speed rotation shaft 8, and the stirring blade 9 has an inclined cutting edge and a surface 9a on the lower surface side. is,
Further, as shown in FIG. 3, a plurality of S-shaped stirring blades 9 are arranged with the rotational direction phase shifted.

In addition, 11 in the figure is a machine frame, 12 is a mixed raw material input hopper, 13 is a slide seal material, 14 is a V-belt wheel,
15 is a high-speed rotating shaft surrounding body, 16 and 17 are threaded caps for attaching and removing the blades, and 18 is a collar.

Although the configuration of the mixing agitator according to one embodiment has been described above, the specific configuration of the present invention is not limited to the above-mentioned embodiment. If so, the inclination angle may be an appropriate angle, and the axis does not necessarily have to be directed toward the spherical center of the spherical container, and the coaxial 8 may be provided at a slightly shifted position. .

Further, the transmission of the driving means to the high-speed rotating shaft 8 is not limited to belt transmission, but may be transmission using a direct connection structure or a coupling structure.

Further, the drive of the low-speed rotating shaft 6 is not limited to direct drive, but may be indirect drive such as belt transmission.

Although not shown, the spherical container 1 may have a double wall structure and a heating medium or a cooling medium may be sealed in the wall, or a vacuum pump or a pressure pump may be connected to the spherical container 1 to create a vacuum or A configuration for mixing and stirring under pressure may also be used, and in these configurations, the spherical container 1 has a pressure-resistant structure and is preferable. Further, a pipe may be provided around the upper end of the mixed raw material input hopper 12 through which water flows out in a shower state, and in this case, it is possible to prevent the raw material from adhering to the hopper 12. Therefore, an example of the use of the mixer of the present invention will be described in which frozen surimi, which is a raw material for a pastry product such as kamaboko, and additives such as water and starch are added to form a mixture of these raw materials before molding. Then, first, the opening/closing lid 3 is opened and the raw material M is introduced into the spherical container 1 through the input port 2.

Then, when the opening/closing lid 3 is closed and the high-speed rotating shaft 8 and the low-speed rotating shaft 6 are rotated, the raw materials M are mixed and stirred by the stirring blade 9 and the scraping blade 7. Next, by opening the opening/closing lid 5, most of the raw material M that has been mixed and stirred in a short time can be discharged to the outside from the discharge port 4 by the action of gravity. Depending on the structure for dumping and discharging the raw material M used, operations such as reversing the container are required.
It is extremely efficient. As shown in FIGS. 2 and 3, the mixing and stirring action of the raw material M is caused by the scraping blade 7 rotating at a low speed (100 rpm in the example) being an inclined scraping blade that pushes the raw material M inward. Because of the shape, the raw material M is pushed inward of the spherical container 1,
In particular, at the bottom, it flows directly toward the stirring blade 9 as shown by arrow a, against the gravitational action, and at the sides and top, as shown by arrow b, it flows downward toward the stirring blade 9. (The scraping blade also performs the mixing and stirring action)
Next, the raw material M flowed toward the stirring blade 9 as described above is rotated at a high speed (15 in the example).
00 rpm to 3000 rpm) and are arranged in an inclined state, and the stirring blade 9 has an inclined cutting edge surface 9a formed on the lower surface side.
The mixture is simultaneously mixed and stirred while being finely chopped by the blade, and flows in the direction of arrow C due to the downward push by the inclined cutting edge surface 9a and the spherical shape of the container 1.

In this case, since the container 1 has a spherical shape, the cross-sectional area of the container in the direction perpendicular to the high-speed rotation shaft 8 gradually decreases toward the proximal end of the high-speed rotation shaft 8. However, in the present invention, since the inner surface of the container 1 is formed into a spherical surface,
The raw material subjected to this strong compressive force flows smoothly along the spherical surface, and there is no place for the raw material to stagnate, and there is no friction between the raw material M subjected to the compressive force and the inner surface of the container 1. Mixing and agitation can also be promoted.

In other words, in terms of raw material fluidity, the spherical container structure has the best raw material flow, and the scraping blades 7 are installed in an inclined state.
Because it has a three-dimensional flow structure that utilizes the force and gravity of the stirring blades 9 and the stirring blades 9, it has extremely good fluidity, and in terms of mixing and stirring properties, it effectively mixes and stirs the flow of the raw material M in the direction of gravity. Since it has an inclined stirring blade structure, it has good mixing and stirring properties, and shows high mixing and stirring efficiency due to the above-mentioned raw material fluidity and mixing and stirring properties. The mixer of the present invention can also be used to mix and stir various materials such as wheat flour. Furthermore, although an embodiment is shown in which the scraping blades 7 and the stirring blades 9 rotate in opposite directions, they may rotate in the same direction. Since the mixer of the present invention can be configured and used as described above, it has good workability and is effective in mixing and stirring various raw materials in a short time.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view showing an example of the mixing agitator of the present invention, Fig. 2 is a longitudinal sectional front view showing the main parts of the machine, and Fig. 3 is a cross-sectional view taken along line A-A in Fig. 2. , 4 and 5 are vertical sectional views showing a conventional agitator. 1... Spherical container, 2... Mixed raw material inlet, 3... Open/close lid, 4... Mixed product outlet, 5... -Opening/closing lid, 6...Low speed rotating shaft, 7...Scraping blade, 8...High speed rotating shaft, 9...Stirring blade.

Claims (1)

[Claims] 1 A spherical container 1 having a spherical inner surface, a mixed raw material inlet 2 opening at the top of the container 1 and equipped with an opening/closing lid 3, and a opening/closing lid 5 opening at the bottom of the container 1. a mixed product discharge port 4, a low-speed rotating shaft 6 disposed obliquely downward from the upper side of the container 1 toward the spherical center, and a semi-circular arc-shaped scraper provided on the same shaft 6 along the inner surface of the container 1. a handle blade 7, a high-speed rotation shaft 8 disposed obliquely upward from the lower side of the container 1 opposite to the low-speed rotation shaft 6, and a plurality of stirring blades 9 provided from the tip to the base end of the same shaft 8. and that the scraping blades 7 are formed as inclined scraping blades that push the raw material inward, and that each of the stirring blades 9 is formed with an inclined cutting edge surface 9a on the lower surface side. Features a mixing agitator.