KR100431517B1 - Mixing Device - Google Patents

Abstract

The present invention relates to a stirring device for stirring together starch, sorbitol, talc powder, and the like, and more specifically, it is possible to stir together a relatively low-temperature raw material to the dough, the temperature is increased by the frictional heat according to the stirring It relates to a stirring device. To this end, the motor 12 for outputting a rotary motion; A reduction device (30) connected to the motor (12) to reduce and transmit a rotational speed of the motor (12); A rotating shaft 22 connected vertically to the reduction device 30 and rotatable; A first stirring blade 24 fixed on the rotating shaft 22; A second stirring blade (26) fixed to the lower portion of the first stirring blade (24) on the rotary shaft (22) and having a length greater than the length of the first stirring blade (24); A third stirring blade (28) fixed to the lower portion of the second stirring blade (26) on the rotary shaft (22) and having the same length as that of the second stirring blade (26); A stirring tank 20 accommodating the rotary shaft 22, the first stirring blade 24, the second stirring blade 26 and the third stirring blade 28 therein, and a lid 21 assembled thereon; And discharge device 40 formed on one side of the stirring tank 20; In the edge region of the first stirring blade 24, the second stirring blade 26 and the third stirring blade 28, an upward inclined portion 50 of 30 to 40 degrees is formed.

Description

Stirring Device

The present invention relates to a stirring device for stirring together starch, sorbitol, talc powder, and the like, and more specifically, it is possible to stir together a relatively low-temperature raw material to the dough, the temperature is increased by the frictional heat according to the stirring It relates to a stirring device.

Generally, all the raw materials to be stirred are added to the stirrer at one time and stirred, or there is also a step of stirring while continuously feeding the raw materials with a time difference. At this time, considerable heat is generated during the stirring due to the frictional heat of the raw material itself, even if no additional heating is performed. The heat generated serves to melt or soften the raw material.

Starch, sorbitol, talc, and the like are used to prepare biodegradable disposable containers when they are kneaded with stirring and then pressed or injected. Thus, examples of such containers include disposable cup ramen containers, disposable mugs, jjajangmyeon for delivery, cold noodle for delivery, trays, buffers, and the like.

Hereinafter, a brief description will be made of a method for preparing a raw material used to manufacture such a biodegradable disposable container.

First, starch powder ((C ₆ H ₁₀ O ₅ ) n) extracted from sweet potato, potato, corn, rice, wheat flour, sugarcane, or a plurality of selected crops (in this embodiment, corn). Prepare. Next, prepare food grade Sorbitol (C ₆ H ₁₄ O ₆ ) extracted from starch powder and talc powder (3MgO.4SiO ₂ .H ₂ O) as an additive and an additive.

Then, 50 to 90% by weight of starch powder and 5 to 20% by weight of sorbitol are mixed with an adhesive. Then, the mixture is kneaded in a gelatinized state by stirring and pulverizing at a high speed at a temperature of 110 to 120 ℃. Then, 5 to 30% by weight of talc powder is added to the dough and stirred at high speed. Then, the dough is cooled to 35 ~ 45 ℃ dehydration so that the total water content is about 1% (S16).

Into the extruder 20 in the dehydrated state as described above is extruded at a temperature of 120 ~ 210 ℃ to form a fillet (Pallet) or granules (S18). The raw material manufactured in the form of such a fillet is used as a raw material which is melted as needed and reprocessed into a desired form.

In this stirring process, starch, sorbitol, and talc powder are not simultaneously introduced into the stirrer. That is, starch and sorbitol are stirred to make a gelatinized state, and then talc powder is added.

When using a conventional stirrer in such a stirring process, there was a disadvantage that the newly added talc powder is not stirred well with the dough. This is due to the viscosity of the melted dough due to frictional heat, moisture content, the stirring speed of the stirrer, the temperature, the geometry of the stirring blade, and the like. For this reason, there existed a problem that a dough became nonuniform and the load applied in the extrusion process for manufacturing pellets.

Accordingly, the present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a stirring device for stirring the raw material (5) used in the molding of a biodegradable disposable container.

An object of the present invention as described above, the motor 12 for outputting a rotary motion;

A reduction device (30) connected to the motor (12) to reduce and transmit a rotational speed of the motor (12);

A rotating shaft 22 connected vertically to the reduction device 30 and rotatable;

A first stirring blade 24 fixed on the rotating shaft 22;

A second stirring blade (26) fixed to the lower portion of the first stirring blade (24) on the rotary shaft (22) and having a length greater than the length of the first stirring blade (24);

A third stirring blade (28) fixed to the lower portion of the second stirring blade (26) on the rotary shaft (22) and having the same length as that of the second stirring blade (26);

A stirring tank 20 accommodating the rotary shaft 22, the first stirring blade 24, the second stirring blade 26 and the third stirring blade 28 therein, and a lid 21 assembled thereon; And

Discharge apparatus 40 formed on one side of the stirring tank 20; Consisting of,

By the stirring device, characterized in that the inclined region of 30 to 40 degrees is formed in the edge region of the first stirring blade 24, the second stirring blade 26 and the third stirring blade 28. Is achieved.

Further, the upward angle of the upward tilting part 50 is more preferably 37 degrees.

In addition, the reduction device 30,

A drive pulley 31 rotatably connected to the motor 12;

A driven pulley (33) connected to a lower end of the rotating shaft (22) and rotatable with the rotating shaft (22); And

It is also possible to comprise a V-belt 35 connecting the drive pulley 31 and the driven pulley 33.

And, the discharge device 40,

A stopper 46 capable of reciprocating in the discharge device 40;

A discharge rod 42 fixed to one side of the stopper 46 and extending outwardly of the discharge device 40; And

It is even more preferable to include an outlet 44 formed on one side of the discharge device (40).

Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and the preferred embodiments associated with the accompanying drawings.

1 is a front view of the stirring apparatus according to the present invention,

Figure 2 is a schematic front configuration diagram of the stirring device shown in Figure 1,

3 is a partially enlarged cross-sectional view of a portion A in FIG. 2.

<Short Description of Main Reference Signs>

5: raw material, 10: stirring device,

12: motor, 14: support,

20: stirring tank 21: lid,

22: rotating shaft, 24: first stirring blade,

26: second stirring blade, 28: bridge three stirring blade,

30: reduction gear, 31: driving pulley,

33: driven pulley, 35: V belt,

40: discharge device, 42: discharge rod,

44: outlet, 46: stopper,

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a front view of the stirring device 10 according to the present invention. As shown in FIG. 1, the stirring device 10 is largely composed of a stirring tank 20, a motor 12, and a speed reduction device 30.

The motor 12 is assembled so that an output shaft (not shown) faces downward, and the support 14 for supporting the motor 12 is installed in the lower part.

The deceleration device 30 has a deceleration function for converting the high speed low torque of the motor 12 into the low speed high torque. The detailed configuration of the reduction gear 30 will be described later.

Stirring tank 20 is assembled to one side of the reduction device 30, is configured to receive power by the reduction device (30). In addition, the discharge device 40 (described later) is provided in the lower corner region of the stirring tank 20 to discharge the stirred raw material.

FIG. 2 is a schematic front configuration diagram of the stirring apparatus shown in FIG. 1. As shown in FIG. 2, the driving pulley 31, the driven pulley 33, and the V belt 35 are configured inside the speed reduction device 30. The drive pulley 31 is connected to the rotation shaft of the motor 12, and can be rotated by the motor 12. The driven pulley 33 has a larger diameter than the drive pulley 31, and a rotating shaft 22 penetrating the stirring tank 20 is provided at the center thereof. The V belt 35 is connected between the driving pulley 31 and the driven pulley 33 to transmit power. In FIG. 2, only three V-belts are illustrated, but a plurality of V-belts may be connected in parallel according to the magnitude of power transmitted.

The upper portion of the stirring tank 20 is provided with a lid 21 is openable, the center of the rotation shaft 22 is rotatably installed rotatably. The rotating shaft 22 is attached to the 1st stirring blade 24, the 2nd stirring blade 26, and the 3rd stirring blade 28, and is comprised so that it may rotate integrally.

The width of the 1st stirring blade 24, the 2nd stirring blade 26, and the 3rd stirring blade 28 is the same, respectively, The length of the 1st stirring blade 24 is the 2nd stirring blade 26 and the 3rd. It is shorter than the length of the stirring blade 28. In addition, the length of the 2nd stirring blade 26 and the 3rd stirring blade 28 is mutually the same.

An upwardly inclined portion 50 (described later) is formed in the circumferential circumferential region of the first stirring blade 24, the second stirring blade 26, and the third stirring blade 28.

The discharge device 40 is a cylindrical pipe, is inclinedly installed, and a discharge port 44 is formed in the vertical direction. In addition, the discharge device 40 is provided with a stopper 46 capable of reciprocating movement, and one side of the stopper 46 is provided with a discharge rod 42 for taking out by hand. The outlet 44 is opened or closed in accordance with the reciprocating motion of the stopper 46.

Hereinafter, the shape of each stirring blade will be described in more detail. 3 is a partially enlarged cross-sectional view of a portion A in FIG. 2. As shown in FIG. 3, the upwardly inclined portion 50 of the first stirring blade 24, the second stirring blade 26, and the third stirring blade 28 has a similar shape, but the detailed dimensions thereof are different. . Table 1 shows the dimensions of each blade.

Stirring blade Length (mm) Width (mm) T (mm) L (mm) H (mm) 1st stirring blade 560 90 15 90 28 2nd stirring blade 680 100 15 100 28 3rd stirring blade 680 100 15 100 28

And, as shown in Figure 3, the end of the upward slope 50 is formed in the end blunt, and has a radial upward inclination of about 37 degrees with respect to the horizontal direction. This inclination is for the raw material 5, which is conveyed in the radial direction by the centrifugal force, to move by the upward inclination part 50 in the same trajectory as the arrow of FIG. This trajectory is superior to the conventional stirrer because of the principle that the raw material 5 falls back on the raw material 5 which is pushed out by the centrifugal force. The angle of the upward slope 50 is determined in the range of approximately 30 degrees to 40 degrees. If the inclination is too small, the raw material 5 does not fall on the raw material 5, and if the inclination is too large, the raw material may not be pushed in the radial direction and may be stuck to the upwardly inclined portion 50, causing a phenomenon.

Hereinafter, the operation of the stirring device of the present application having the configuration as described above will be described. First, a predetermined amount of starch and sorbitol are opened with the lid 21 opened, and then the motor 12 is rotated. The rotational force of the motor 12 is transmitted to the driven pulley 33 through the driving pulley 31 and the V belt 35. Rotation of the driven pulley 33 leads to rotation of the rotary shaft 22, the first stirring blade 24, the second stirring blade 26, and the third stirring blade 28.

At this time, the raw material 5 advances radially along the outer surface of each stirring blade by centrifugal force. Then, when it reaches the upward inclination part 50, it advances upward by the inclination of about 37 degree | times, and after that, it leaves a stirring blade and falls down by gravity (refer the arrow of FIG. 3).

At this time, while again colliding with the raw material 5 pushed out in the circumferential direction from the top of the stirring blade, each raw material 5 repeats this action hundreds to thousands of times. This stirring action generates frictional heat (about 120 to 210 degrees) between the raw materials 5, whereby the raw materials turn into a luxurious dough. Then, the lid 21 is opened again, and a talc powder is added at a predetermined ratio. The newly added low temperature (room temperature) talc powder by the same stirring action as described above causes hot dough and smooth agitation despite the temperature difference. Thereby, stirring is completed.

When the stirring is completed, the discharge rod 42 is taken out so that the discharge port 44 is opened. Then, the raw material 5 is discharged to the discharge port 44 by the repetitive flow. At this time, the motor 12 may be selectively rotated at low speed or may be stopped.

Looking at the embodiment of the stirring device of the present invention in more detail. The production capacity of the stirring device is 300 ~ 400Kg / hr, the rotation speed is 800rpm, the first mixing time is 15 minutes, the operating temperature is 100 ~ 150 ℃. In addition, the inner diameter of the stirring tank is 743 mm, the outer diameter is 860 mm.

As the deceleration device 30 of the present invention has been shown and described with the V-belt and pulley, it is limited to this, it is also possible to replace the gear device, chain device, belt device, etc. for transmitting power. In addition, a direct drive method directly connecting to the motor to rotate the rotary shaft 22 is also possible.

In the present invention, three stirring blades are also illustrated and described, but four, five, six, or two or less stirring blades may be installed depending on the volume of the stirring tank 20, the amount and ratio of the raw material 5, and the temperature. have.

Discharge device 40 is also, of course, the opening and closing method of the stopper 46, a valve method, a cock method, such as a variety of opening and closing means can be applied.

According to the stirring device according to the present invention as described above, the raw material 5 used for forming the biodegradable disposable container can be stirred with a desired performance in a short time. Therefore, the cost, time, labor costs, etc. are reduced, there is a feature that can uniformly increase the quality of the raw material.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications or variations without departing from the spirit and scope of the invention. Accordingly, the appended claims will cover such modifications and variations as fall within the spirit of the invention.

Claims (4)

A motor 12 outputting a rotational motion; A reduction device (30) connected to the motor (12) to reduce and transmit a rotational speed of the motor (12); A rotating shaft 22 connected vertically to the reduction device 30 and rotatable; A first stirring blade 24 fixed on the rotating shaft 22; A second stirring blade (26) fixed to the lower portion of the first stirring blade (24) on the rotary shaft (22) and having a length greater than the length of the first stirring blade (24); A third stirring blade (28) fixed to the lower portion of the second stirring blade (26) on the rotary shaft (22) and having the same length as that of the second stirring blade (26); A stirring tank 20 accommodating the rotary shaft 22, the first stirring blade 24, the second stirring blade 26 and the third stirring blade 28 therein, and a lid 21 assembled thereon; And Discharge apparatus 40 formed on one side of the stirring tank 20; Consisting of, Stirring device characterized in that the inclined region of 30 to 40 degrees is formed in the edge region of the first stirring blade 24, the second stirring blade 26 and the third stirring blade 28. The stirring device according to claim 1, wherein an upward angle of the upward tilting part is 37 degrees. The method of claim 1 or 2, wherein the reduction device 30, A drive pulley 31 rotatably connected to the motor 12; A driven pulley (33) connected to a lower end of the rotating shaft (22) and rotatable with the rotating shaft (22); And Stirring device, characterized in that consisting of the V-belt (35) connecting the drive pulley (31) and the driven pulley (33). The method according to claim 1 or 2, wherein the discharge device 40, A stopper 46 capable of reciprocating in the discharge device 40; A discharge rod 42 fixed to one side of the stopper 46 and extending outwardly of the discharge device 40; And Stirring apparatus comprising a discharge port (44) formed on one side of the discharge device (40).