JPH11262648A - Vessel rotating type mixer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent air from being engulfed in a mixer of such type that a material can is rotated with a paddle being inserted by eliminating movement that a material to be mixed so that when it hits on a fitting axis of the paddle, it forks into two there, and then the two join. SOLUTION: A paddle part 35 (35a, 35b) is formed like a L-shape consisting of a side panel 35a hitting on a peripheral, wall 31a of a material can 31 and a bottom panel 35b reaching the bottom surface thereof, and the side paddle 35a is directly connected to a fitting part 33c of an arm part 33. Therefore, since a sealing material to be kneaded 29 is hit against only the side panel 35a on the surface of the liquid and there is no movement in which the sealing material hitting there forks in two and then the two join, air is prevented from being engulfed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary mixer for containers. Specifically, the mixture in the mixing vessel is mixed by rotating the mixing vessel with the paddle portion of the paddle arm supported outside the mixing vessel inserted into the mixing vessel having a cylindrical peripheral wall. The present invention relates to a rotating container type mixing machine.

[0002]

2. Description of the Related Art For example, architectural sealing materials are used by mixing a curing agent with a base material, and a container-rotating mixer is usually used for this mixing. FIGS. 5 to 7 show an example 1 of a conventional container rotary mixer. 3
Denotes a mixing container, and the mixing container 3 usually uses a material can containing a sealing base as it is, and is mounted on a turntable (not shown) and rotated at a low speed. 5
Denotes a paddle arm. The paddle arm 5 includes an arm 7 supported outside the mixing container 3 and a paddle 9 inserted into the mixing container 3.

The arm 7 includes a vertical base shaft 7a, an intermediate portion 7b extending horizontally from the upper end of the base shaft 7a, and a relatively short mounting portion 7c extending downward from the tip of the intermediate portion 7b. The base shaft portion 7a is rotatably supported around the axis outside the mixing container 3. The paddle portion 9 has a substantially mountain shape. That is, the paddle portion 9 includes a horizontally long bottom paddle 9a, two side paddles 9b vertically rising from both ends of the bottom paddle 9a, and a bottom paddle 9a.
And a connecting shaft 9c vertically rising from an intermediate portion of the arm portion 7. The upper end of the connecting shaft 9c is
Is inserted and fixed.

To perform mixing, after mounting the mixing container 3 on a turntable (not shown), the base shaft portion 7a is attached to the arm support portion 11 near the turntable while the paddle portion 9 is placed in the mixing container 3. insert. When the turntable rotates from this state, the mixing container 3 rotates, and the sealing material 13 in the mixing container 3 moves in a circular motion with this rotation, and at this time, the sealing material 13 is moved to the side paddle 9b or the bottom paddle. The mixture is kneaded by overcoming or inverting it at 9a, and the curing agent is mixed with the base by this kneading.

[0005]

A mixer 1 of this type
Has a problem that air is trapped in the sealing material 13 to be mixed. One of the causes of this air entrapment is the connecting shaft 9c of the paddle arm 5. That is,
The connecting shaft 9c is positioned so as to vertically protrude from the sealing material 13 and naturally intersects the liquid surface of the sealing material 13, so that the flowing sealing material 13 is connected to the connecting shaft 9c as shown by an arrow in FIG. This is because, when it hits 9c, it moves in a bifurcated manner and then joins, and in this joining, air is often involved.

In addition, since the sealing material 13 and the like have a very high viscosity, they cannot be easily removed once air is entrained, resulting in a defective sealing material having many air bubbles. In order to prevent air from entering the sealing material 13 as much as possible, there is a connecting shaft 9c having a quadrangular cross-sectional shape (Japanese Patent Laid-Open No. 7-39740). It was difficult to get closer.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and by devising a structure of a paddle arm, a container-type rotary mixing device that prevents a separation and a merger from occurring in the movement of a material to be mixed. The purpose is to provide a machine.

[0008]

According to the present invention, there is provided a mixer comprising: a mixing vessel having a cylindrical peripheral wall;
A rotating means for rotating the mixing container, an arm portion rotatably supported outside the mixing container, and a paddle arm having a paddle portion inserted into the mixing container, wherein the paddle portion has an upper end A side paddle that contacts the inner surface of the peripheral wall of the mixing container and a bottom paddle that contacts the bottom surface of the mixing container in a state where the portion is positioned above the liquid level of the mixture in the mixing container. This is a container rotary mixer in which the mixture is agitated by a paddle section, in which a side paddle is connected to a tip of an arm section.

Therefore, in this mixer, the portion of the mixing vessel which intersects the liquid surface of the mixture in the mixing vessel is limited to the side paddle, and the side paddle contacts the peripheral wall of the mixing vessel on one side. Since the flow of the material to be mixed is stopped, the material to be mixed hitting this portion does not flow in a bifurcated shape here, and thus the entrainment of air can be prevented almost certainly.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a mixer according to an embodiment of the present invention will be described with reference to the drawings. Reference numeral 21 denotes a mixer. The mixer 21 includes a base 23, a rotation mechanism 25 supported by the base 23, a paddle arm 27 detachably supported by the base 23, and the like.
The material can 31, which is a container for the sealing material 29, is used as it is. This material can 31 has a cylindrical peripheral wall 31a.

The rotating mechanism 25 comprises a motor (not shown) fixed to the machine base 23 and a turntable fixed to the rotating shaft of the motor. The material can 31 is placed on the turntable in a vertical posture. Is fixed to the turntable by chuck means (not shown). The rotation of the turntable causes the material can 31 to be rotated about its center axis as a center of rotation, and the direction of this rotation is reversed every time period set arbitrarily.

The paddle arm 27 includes an arm 33 and a paddle 35. The arm part 33 is a vertical base shaft part 3.
3a, an intermediate portion 33b extending horizontally from the upper end of the base shaft portion 33a, and a relatively short mounting portion 33c extending downward from the tip of the intermediate portion 33b are integrally formed by bending a metal round pipe. Is formed.

The paddle portion 35 has a structure in which three metal plates each having a substantially L-shape viewed from the side are overlapped, and a vertical portion thereof is a side paddle 35a and a horizontal portion thereof is a bottom paddle 35b. It is. The paddle portion 35 has a semi-cylindrical rubber sliding contact member 37.
7 is one side of the side paddle 35a and the bottom paddle 35
b. And the paddle part 35
Is welded to the mounting portion 33 in a state where the upper end portion of the middle one of the three metal plates is inserted into the lower end portion 33d of the mounting portion 33c of the arm portion 33.

Reference numeral 39 denotes a paddle mounting pipe fixed to the machine base 23. The paddle mounting pipe 39 is provided in the vicinity of the turntable in a vertical posture, and the paddle arm 27 is inserted into the paddle mounting pipe 39 by inserting a substantially lower half of the base shaft 33a into the paddle mounting pipe 39. It is provided so as to be rotatable around an axis. The mixer 21 is configured as described above.

Next, how to use the mixer 21 will be described.
When using the mixer 21, the paddle arm 27 is once removed from the paddle mounting pipe 39, the material can 31 is mounted on the turntable, and the paddle section 35 is placed in the material can 31 while the paddle section 35 is placed in the material can 31. 33a is mounted on the paddle mounting pipe 39. In this state, the paddle section 35
The bottom paddle 35b is in contact with the bottom surface of the material can 31, and the upper end of the side paddle 35a is located slightly above the liquid level of the sealing material 29. The length of the side paddle 35a is designed to have such a size, that is, a dimension in which the upper end portion is located above the liquid surface of the sealing material 29 in a state where the paddle portion 35 is correctly set in the material can 31.

Then, the rotating mechanism 25 is driven to drive the material can 3.
Rotate 1 When the material can 31 rotates, the sealing material 29 rotates integrally with the material can 31, and the movement of the sealing material 29 pushes the paddle portion 35 to rotate the paddle arm 27, so that the side paddle 35 a is attached to the peripheral wall of the material can 31. The rotation of the paddle arm 27 stops when the paddle arm 27 comes into contact with 31a. That is, one of the state shown by the solid line and the state shown by the two-dot chain line in FIG. From this state, the sealing material 29 is removed from the side paddle 35a and the bottom paddle 35b.
When it hits, it gets over or inverts and is kneaded by these movements, and the base and the curing agent are mixed by kneading.

The sealing material 2 thus kneaded
9 only hits the side paddle 35a at or near the liquid level, and since the side paddle 35a is exactly in contact with the inner surface of the peripheral wall 31a of the material can 31 in the sliding contact member 37, the sealing material 29
Does not move in a bifurcated manner, as shown in FIG. 4, but merely slips through the side surface opposite to the side where the sliding contact member 37 is located to avoid the side paddle 35 a. Therefore, since the sealing material 29 does not move such that the sealing material 29 is once bifurcated and then merged, there is almost no entrainment of air here.

Although the embodiment of the present invention has been described in detail above, the specific configuration is not limited to this embodiment, and there are changes in the design without departing from the gist of the present invention. Are also included in the present invention. For example, the “side paddle” in the present invention refers to a portion that is located in the mixture and agitates the mixture while being in contact with the inner peripheral surface of the mixing vessel. The present invention also includes a structure having a structure that is carried by a partial arm. Further, the arm portion and the paddle portion may be formed integrally.

Further, in the embodiment, one side paddle is shown. However, a plurality of side paddles may be provided. In this case, each side paddle may be connected to the arm. . The present invention is not limited to the mixer for mixing the sealing material for construction, but in a state where the paddle portion of the paddle arm supported outside the mixing container is inserted into the mixing container having the cylindrical peripheral wall. The present invention can be widely applied to various types of container rotary mixers in which the mixture in the mixing container is mixed by rotating the mixing container, and the mixing container used is not limited to the material can.

[0020]

As is clear from the above description, in the container rotating type mixer according to the present invention, the portion of the mixing container that intersects the liquid surface of the mixture is limited to the side paddle. However, since the side paddle contacts the peripheral wall of the mixing vessel on one side and stops the flow of the mixture, the mixture hitting this portion does not flow in a bifurcated shape here, and thus the air Can be prevented almost certainly.

[Brief description of the drawings]

FIG. 1 is a plan view of a main part of a container rotary mixer according to an embodiment of the present invention.

FIG. 2 is a perspective view of a paddle arm of the rotary container mixer shown in FIG.

FIG. 3 is a sectional view taken along the line AA of FIG. 1;

FIG. 4 is an enlarged sectional view taken along line BB of FIG. 3;

FIG. 5 is a horizontal sectional view showing an example of a conventional container rotary mixer.

FIG. 6 is a vertical sectional view of the rotary container mixer shown in FIG.

FIG. 7 is a diagram for explaining the operation of the container rotary mixer shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 21 Container rotary-type mixer 25 Rotating means 27 Paddle arm 29 To-be-mixed 31 Mixing container 31a Peripheral wall 33 Arm part 33c (Arm part) tip part 35 Paddle part 35a Side paddle 35b Bottom paddle

Claims (1)

[Claims] 1. A mixing container having a cylindrical peripheral wall, rotating means for rotating the mixing container, an arm portion rotatably supported outside the mixing container, and a paddle portion inserted into the mixing container. And a paddle arm having a side paddle that contacts the inner surface of the peripheral wall of the mixing vessel with the upper end positioned above the liquid level of the mixture in the mixing vessel and the bottom surface of the mixing vessel. A container rotary type mixer having a bottom paddle, wherein a mixture to be mixed is stirred by a paddle portion by rotating a mixing container, wherein a side paddle is connected to a distal end portion of an arm portion. Mixing machine.