JPS5924338Y2 - Two-shaft forced kneading mixer - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a two-axis forced line remixer.

In the conventional two-wheel forced wire remixer, as shown in Fig. 1, the center of curvature of the kneading shaft a coincides with the center of curvature of the mixing pan body, and the rotation of the blade d attached to the kneading shaft a via an arm C is Since the radius is only slightly shorter than the radius of curvature of the mixing pan body, the gap between the lining of the mixing pan body and the blade d is small and constant.

Therefore, when concrete is mixed, gravel, etc. gets stuck in the gap between the lining plate of the mixing pan body and the blade d, and is dragged along with the rotation of the mixing shaft a, causing wear of the lining plate and blade d, and the mixer It was shortening the lifespan of.

The present invention solves the drawbacks of the conventional two-shaft forced wire remixer mentioned above, allows trapped gravel to be easily removed, reduces wear on the blades and mixing pan lining plate, and provides a long-life two-shaft remixer. The purpose is to provide a forced kneading mixer, in which a mixing shaft with an arm and a blade is installed inside the mixing pan body, which has semicircular arc-shaped stirring tanks with a required radius of curvature arranged in parallel and adjacent to each other. A two-shaft forced wire remixer, characterized in that the two-shaft forced wire remixer is rotatably housed so that the mixing shafts are parallel to each other and the distance between the centers of rotation is wider than the distance between the centers of curvature of the semicircular stirring tank. It is.

Embodiments of the present invention will be described below based on the drawings.

As shown in FIG. 2, in a mixing pan 2 in which semicircular arc-shaped stirring vessels 1 having a radius of curvature of rl are provided in parallel and adjacent to each other, the center of curvature of each semicircular arc C1 The mixing shafts 3 are housed in each stirring tank 1 so that their positions are at rotation centers C2 and C2, respectively, and each kneading shaft 3 has a rotation radius r.
A required number of arms 5 provided with blades 4 are attached so that the number of blades 4 is 2, and the gap δ between the blades 4 and the lining plate of the stirring tank 1 is expanded as each rotates inward. .

When cement, sand, gravel, water, etc. are added and mixed in this two-shaft forced line remixer, when the arm 5 is in a nearly horizontal position, the gap between the blade 5 and the lining plate of the stirring tank 1 becomes the minimum at δ1, The gap expands as it rotates, and when the blade 5 reaches the connection between the stirring tank 1 and another stirring tank 1, the gap becomes δ.
2, which is the maximum.

Therefore, even if gravel is caught in the gap δ, the gap δ
As the gravel expands from δ1 to δ2 with rotation, the gravel becomes easily detached, and the rotational load on the crosstalk shaft 3 does not increase, making it possible to prevent the blades 4 and the lining plate of the stirring tank 1 from being worn out.

Since the amount of material to be mixed such as concrete is large enough to cover the mixing shaft 3, in the range Rotation is not hindered by this.

It should be noted that the two-shaft forced kneading mixer of the present invention is not limited to the above-described embodiments, and it goes without saying that various changes can be made without departing from the gist of the present invention.

As described above, according to the biaxial forced kneading mixer of the present invention, the center of curvature of the stirring tank of the mixing pan body and the rotation center of the mixing shaft are shifted, and the blades and the lining of the stirring tank are aligned in the direction of rotation of the blades. Since the gap between the mixing pan and the mixing pan is made larger, the gravel caught in the gap can easily come off, reducing wear on the lining plate and blades of the mixing pan body, and extending the life of the mixing pan. Demonstrates various excellent effects.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a conventional two-shaft forced kneading mixer, and FIG. 2 is an explanatory diagram of the two-shaft forced kneading mixer of the present invention. In the figure, 1 is a stirring tank, 2 is a mixing pan body, 3 is a crosstalk shaft, 4 is a blade, 5 is an arm, cl, cl. is the center of curvature, C2, C2 is the center of rotation, rl is the radius of curvature,
r2 indicates the radius of rotation.

Claims (1)

[Scope of utility model registration request] Inside the mixing pan body, which is made up of semicircular arc-shaped stirring vessels having a required radius of curvature, arranged in parallel and adjacent to each other, mixing shafts provided with arms and blades are arranged parallel to each other, and the distance between the centers of rotation of the mixing shafts is set. A biaxial forced wire limiter, characterized in that it is rotatably housed so that the spacing between the centers of curvature of the semicircular stirring vessels is wider than the spacing between the centers of curvature of the stirring vessels.