JPH07171369A - Agitator for kneaded material - Google Patents

Abstract

PURPOSE:To promote the generation of turbulent flow while kneaded material being prevented from forming a bank. CONSTITUTION:Since an agitation blade is brought into contact with the inside of a round can for a specified length of time when the round can 7 is rotated, kneaded material 26 is hindered from moving and agitated toward the center of the can. After the passage of the specified time, since the agitation blade is separated from the inside, the material in the banks 27, 28 formed in front of and in the rear of the blade is also separated from the blade. Next, the approaching agitation blade hinders the material from depositing on the inside of the can, and the agitation is repeated effectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a kneading material stirring device used for stirring a kneading material such as an adhesive, a paint or a filler contained in a cylindrical can.

[0002]

2. Description of the Related Art Conventionally, stirring a kneaded product of the type described above has always been carried out manually with a spatula or the like, but this can handle a small amount of kneaded product. When the amount of the kneaded material was large, the workability was poor and it could not be dealt with. Therefore, a stirrer has been developed which stirs the kneaded material in the can by relatively rotating the stirring blade and the can with a motor.

This is because a circular can containing the kneaded material is rotated by a motor, and the kneaded material stuck to the inner peripheral surface of the circular can by centrifugal force is blocked by a stirring blade fixed to the inner peripheral surface, and The stirring is performed so that the direction is forcibly directed to the inside of the can.

[0004]

However, even with such a method, it takes a long time for the kneaded product to be sufficiently stirred. It is considered that this is due to the formation of a kneaded material pool in the vicinity of the front and rear surfaces of the stirring blade and the absence of turbulent flow distinctive to stirring.

The present invention has been made in order to solve the above-mentioned drawbacks, and provides a kneading device for kneading a kneaded product, in which a pool of the kneaded product is not generated and turbulent flow can be promoted. is there.

[0006]

SUMMARY OF THE INVENTION A kneading device stirring apparatus according to the present invention comprises a can holder rotated by a motor in a case,
A round can that is positioned by the can holder and stores the kneaded product inside, and is arranged so that a part of the case extends from the case by an arm so that a part of the can contacts the inner peripheral surface of the can. A stirrer for kneading a kneaded material, comprising a stirrer blade, provided with a drive means for separating the stirrer blade, which comes into contact with the inner peripheral surface of the round can in a predetermined cycle via the arm, from the inner peripheral surface of the round can. Is characterized by.

[0007]

When the round can is rotated, the stirring blade is in contact with the inner peripheral surface of the round can for a predetermined period of time, so that the kneaded product is prevented from moving and is stirred toward the center of the can. Since the stirring blade separates from the inner peripheral surface after a lapse of a predetermined time, the kneaded material in the pool portion before and after the stirring blade separates from the stirring blade by centrifugal force. Next, the stirring blade that moves again becomes an obstacle to the kneaded material that sticks to the inner peripheral surface of the can, and this stirring is effectively repeated.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an automatic stirrer for ink or the like, which is an embodiment of the present invention. For example, a paint, an adhesive, a filler, and other liquids are put into a predetermined amount of a round can and kneaded. It is a device that can automatically stir things.

The drive shaft 3 of the motor 2 provided inside the case 1 is pivotally supported by a support plate 5 fixed to the upper plate 4 of the case 1 and penetrates the upper plate 4 to allow the outside of the case 1. A can holder 6 is axially attached to the tip end of the can holder 6. Further, the can holder 6 is provided with a side plate 8 for mounting a round can 7 having a predetermined diameter and tightening and holding it.

A timing pulley 9 is mounted in the vicinity of the motor 2 of the drive shaft 3, and is connected via a timing belt 10 so as to interlock with a timing pulley 12 formed below the speed reducer 11. . Further, as shown in detail in FIG. 2, the cam 13 formed on the reducer 11 has an intermittent gear 37 and a gear 38.
Since it is meshed with the decelerator 11 via the gear, for example, when the timing pulley 12 rotates 20 times, the intermittent gear 37
Performs a so-called intermittent operation in which the gear 38 is rotated once. Further, the cam 13 is provided with a shaft 36 slidably and rotatably attached to the rotating shaft 15.
Is connected to the rotary shaft 15 by the rotation of the cam 13,
It is a mechanism that gives a reciprocating rotation of a predetermined rotation angle.

A non-circular insertion part 16 is provided at the upper end of the rotating shaft 15, and a protrusion adapted to the hole of the insertion part 16 is provided at the lower end of the arm shaft 34 connected to the rotating shaft. Piece 1
A protrusion 17 having 8 is formed. Therefore, the arm shaft 34 can be fixed to the rotating shaft 15 only in a predetermined positional relationship at all times and can be removed. Further, the rotating shaft 15 and the arm shaft 34 located in the connecting portion and in the vicinity thereof are rotatably supported by a holding cylinder 19 fixed to the upper plate 4 of the case 1.

A vertically extending arm 14 is fixed to an upper portion of an arm shaft 34 extending above the holding cylinder 19, and a stirring blade 20 is provided at a tip end of the arm 14 in a round can 7.
It is extended and fixed so as to be located inside.

As shown in FIG. 3, the stirring blade 20 has a first blade piece 23 having a side 22 that contacts the inner peripheral surface 21 of the round can 7 and a side 24 that contacts the bottom surface 35 of the round can 7. The second blade piece 25 and the second blade piece 25
Has a length equal to or larger than the radius of the round can 7, bends upward from a predetermined position, and extends toward the center again, and the entire stirring blade 20 has a hook shape. There is.

Next, the movement of the stirring blade 20 in the round can 7 and the accompanying flow of the kneaded material 26 will be described with reference to the drawings.

First, the round can 7 containing the kneaded material 26 is attached to the side plate 8.
Then, the stirring blade 20 is set. Next is the motor 2
When you turn on the power and rotate the drive shaft 3, the can holder 6
The round can 7 installed in the machine starts to rotate. At this time, with the rotation of the motor 2, the timing pulley 9, the timing belt 10, the timing pulley 12, the speed reducer 11, the cam 13, the shaft 36, and the rotary shaft 15 are interlocked, and the arm 14 is moved through the arm shaft 34. Reciprocating rotation of a predetermined rotation angle is intermittently started. Therefore, as shown in FIG. 4, the stirring blade 20 moves the rotary shaft 15 from the state where the side 22 of the first blade 23 is in contact with the inner peripheral surface 21 of the round can as shown in FIG. Start moving on the circular orbit centered on the center.

When the stirring blade 20 reaches a predetermined position in the round can 7, it returns to the position shown in FIG.
The reciprocating operation is repeated at a predetermined timing within this range. The reciprocating range of the stirring blade 20 is the cam 1
3 is determined by the size and shape, the distance between the round can 7 and the rotary shaft 15, the length of the arm, and the like.

Next, the flow state of the kneaded material 26 in the round can 7 as the stirring blade 20 reciprocates will be described.

First, when the round can 7 rotates, the kneaded material 26 begins to generally approach the inner peripheral surface 21 of the round can 7 due to centrifugal force.
Here, the kneaded material 26 collected on the inner peripheral surface 21 reaches the stirring blade 20 at the position shown in FIG. 4 from the inner peripheral surface by the first blade piece 23, and further by the second blade 25 on the bottom surface. It is scooped up and stirred so as to be drawn to the center of the can 7.

Then, the kneaded material 26 gathered at the center is
Rotation of the circular can 7 again causes centrifugal force to the inner peripheral surface 21 of the circular can.
And is scooped up again by the stirring blade 20. The kneaded product 26 repeats the above steps,
It will be agitated.

However, even if this process is repeated,
As shown in FIGS. 4 and 5 which is a cross-sectional view taken along the line BB of FIG.
So-called pools 27, 28 that are not affected by the flow of 6
Will be formed.

The kneaded material 26 stays in the reservoirs 27 and 28 and is hardly stirred, and it takes a long time to uniformly knead the whole.

However, as in the present invention, the stirring blade 20
However, as shown in FIG. 6, the side portions 22 of the first blade piece 23 move away from the inner peripheral surface 21 of the round can 7 at a predetermined timing, so that the accumulation portions 27 and 28 formed in FIG.
Is subjected to centrifugal force due to the rotation of the round can 7, and is repelled by the inner peripheral surface of the round can 7. Since the reciprocating operation of the stirring blade 20 continues at a predetermined timing, the accumulation portion is not always formed in a constant portion, and the stirring operation works efficiently and uniformly in the entire kneaded material 26.

The movement of the stirring blade 20 also has the following secondary effects. When the side 22 of the first blade side 23 is normally kept in contact with the inner peripheral surface 21 of the round can, the kneaded material 26 is scooped up from the inner peripheral surface by the first blade piece 23 as described above. The soybean dumpling is formed and kneaded toward the center. However, in the method of the present invention, the first blade piece 23 is moved away from the inner peripheral surface 21, so that the dumpling-shaped kneaded material 26 loses the blocking force by the stirring blade 20 at this point, and the inner peripheral surface of the can 7 is removed. It rotates like sticking, and it becomes a completely different shape from a dumpling. From this state, the stirring blade 20 blocks the adhering kneaded material 26 again, so that the kneaded material is forced to make a large direction change, and the stirring effect is increased.

7 and 8 show another embodiment of the present invention, which is an example using a stirring blade 29. In particular, the stirring blade 29 shown in FIG. 7 is the stirring blade 20 of the first embodiment.
As described above, the first blade piece 30 and the second blade piece 31 are formed, and the first blade piece 30 and the second blade piece 31 have a tangential direction to the inner peripheral surface 21 of the round can 7 and a bottom surface 35. Is always formed so as to ensure a predetermined rake angle.

By providing a rake angle, the stirring blade 2
The pool portion 32 formed in front of 9 is almost eliminated, and the highly viscous kneaded material 26 can be smoothly stirred. However, the kneaded material 26 in the reservoir 33 formed at the rear of the stagnant blade 29 is retained by the stirrer blade 29.
Is solved by the movement of the, and the stirring effect is further improved.

When the rake angle is given to the stirring blade 29 in this way, the kneaded material 26 is attached to the inner peripheral surface 21 of the can by centrifugal force as in the first embodiment, and the stirring is performed. When the blades 29 interrupt the adhering kneaded material 26 again, the kneaded material 26 is rapidly guided to the center of the can 7 by the rake angle of the first blade piece 30, and the stirring effect is further improved.

It should be noted that the present invention is not limited to the above-described embodiments, and naturally includes design changes that can be easily conceived by those skilled in the art.

[0029]

In the present invention, since the stirring blade is separated from the inner peripheral surface of the round can at a predetermined timing, the kneaded material reservoir formed before and after the stirring blade is centrifugally moved to the inner peripheral surface of the round can. It is repelled and uniform stirring proceeds. In addition, the stirring blade returning to the inner peripheral surface violently collides with the kneaded material sticking to the inner peripheral surface, so that the stirring efficiency is further enhanced.

[0030]

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a stirring device according to an embodiment of the present invention.

2 is a perspective view of the connecting mechanism of FIG. 1. FIG.

FIG. 3 is a perspective view of a can and a stirring blade according to an embodiment of the present invention.

FIG. 4 is a cross-sectional view taken along the line AA of FIG.

5 is a sectional view taken along line BB of FIG.

6 is a cross-sectional view showing a state when a stirring blade in FIG. 4 is moving.

FIG. 7 is a front view of a stirring blade according to another embodiment of the present invention.

8 is an AA of FIG. 1 when the stirring blade of FIG. 7 is used.
FIG.

[Explanation of reference numerals] 1 case 19 holding cylinder 2 motor 20 stirring blade 3 drive shaft 21 inner peripheral surface 4 upper plate 22 side 5 support plate 23 first blade piece 6 can holder 24 side 7 round can 25 second blade piece 8 side plate 26 Kneaded Material 9 Timing Pulley 27 Reservoir 10 Timing Belt 28 Reservoir 11 Decelerator 29 Stirring Blade 12 Timing Pulley 30 First Blade Piece 13 Cam 31 Second Blade Piece 14 Arm 32 Reservoir 15 Rotating Shaft 33 Reservoir 16 Insert Mouth 34 Arm shaft 17 Projection part 35 Bottom surface 18 Projection piece 36 Shaft 37 Intermittent gear 38 Gear

Claims (4)

[Claims] 1. A can holder that is rotated by a motor in a case, a round can that is positioned by the can holder and stores a kneaded product therein, and a can that extends from a part of the case by an arm. A stirrer for kneading a kneaded material, which comprises an agitating blade arranged so that a part thereof can come into contact with the inner peripheral surface, and agitating by contacting the inner peripheral surface of a round can in a predetermined cycle via the arm. A kneading device for a kneaded material, comprising a drive means for separating the blade from the inner peripheral surface of the round can. 2. The kneaded product according to claim 1, wherein the stirring blade comprises at least a first blade piece that abuts the inner peripheral surface of the round can and a second blade piece that abuts the bottom surface of the round can. apparatus. 3. The kneaded material stirring device according to claim 1, wherein the driving means of the arm is one in which the driving force of a motor for rotating the can holder is reduced by a decelerator to increase the force. 4. The kneaded material stirring device according to claim 2, wherein the first blade piece and the second blade piece of the stirring blade are inclined at a predetermined angle in the moving direction of the kneaded material.