CN112140314A

CN112140314A - Concrete prefabricated component spiral distributing device

Info

Publication number: CN112140314A
Application number: CN201910560763.4A
Authority: CN
Inventors: 李佑福; 贺育德; 郑怀臣; 李骥; 尹斌; 毛成宝
Original assignee: Hunan Wuxin Formwork Co Ltd
Current assignee: Hunan Wuxin Formwork Co Ltd
Priority date: 2019-06-26
Filing date: 2019-06-26
Publication date: 2020-12-29

Abstract

The invention discloses a spiral distributing device for a concrete prefabricated part, which comprises a distributing hopper, a distributing pipeline and a spiral distributing shaft, wherein the distributing hopper is arranged on the top of the distributing pipeline; the two ends of the distributing pipeline are respectively provided with a feeding hole and a discharging hole, the distributing hopper is in butt joint with the feeding hole of the distributing pipeline, the spiral distributing shaft is arranged in the distributing pipeline, and the spiral distributing shaft is provided with a plurality of layers of spiral blades with the same spiral direction at the discharging hole of the distributing hopper. The spiral distributing device for the concrete prefabricated part has the advantages of simple structure, high distributing precision, good consistency and the like.

Description

Concrete prefabricated component spiral distributing device

Technical Field

The invention relates to the technical field of concrete distribution, in particular to a spiral distribution device for a concrete prefabricated part.

Background

In the production process of small-sized prefabricated parts, the small-sized prefabricated parts have small volumes, so that the requirement on the metering precision of the cloth is high, and the full automation of the cloth needs the material distributor with the metering precision meeting the tolerance requirement of the parts. The existing material distributing machine mostly adopts single-layer spiral material conveying, adopts an integral weighing mode to carry out material distribution metering, has lower metering precision and far exceeds the volume allowable deviation of small-sized prefabricated components. In addition, the single-layer spiral conveying structure has the following great defects: because the position of spiral distributing shaft 3 of spiral distributing device when stopping each time is different, the stop position of corresponding helical blade 4 is also different to make the opening position change of back of the body chamber, the blanking volume also presents great volatility. Such as when the helical blade 4 is in the position as in figure 1, the back cavity is open upwards and the material in the back cavity is packed in the back cavity. When the helical blade 4 is in the position as shown in fig. 2, the back cavity is open downwards and the material in the back cavity is completely released. The result that above-mentioned phenomenon leads to is that the blanking volume is the change of pulsed, and when the back of the body chamber opening orientation was inconsistent when defeated material was ended every time, the blanking volume can differ greatly, consequently can't control the cloth volume through the rotatory stroke of control spiral defeated material structure accurately.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides the spiral material distribution device for the concrete prefabricated part, which is simple in structure and good in material distribution consistency.

In order to solve the technical problems, the invention adopts the technical scheme that:

a spiral distributing device for a concrete prefabricated part comprises a distributing hopper, a distributing pipeline and a spiral distributing shaft; the two ends of the distributing pipeline are respectively provided with a feeding hole and a discharging hole, the distributing hopper is in butt joint with the feeding hole of the distributing pipeline, the spiral distributing shaft is arranged in the distributing pipeline, and the spiral distributing shaft is provided with a plurality of layers of spiral blades with the same spiral direction at the discharging hole of the distributing hopper.

As a further improvement of the above technical solution:

the spiral blades are uniformly distributed on the spiral distributing shaft at intervals.

The rotating curved surfaces of the multiple layers of spiral blades are parallel to each other.

The number of the helical blades is 2-8 layers.

The number of the spiral blades is 3 layers.

Compared with the prior art, the invention has the advantages that:

according to the spiral distributing device for the concrete prefabricated part, when distributing is carried out, due to the fact that the spiral blades are arranged in multiple layers, the tail end of the spiral distributing shaft can be divided into a plurality of spiral cavities (back cavities), under the condition that the pipe diameters of the distributing pipelines are the same, the number of the spiral cavities is larger, the amount of concrete stored in each spiral cavity is smaller, and when the spiral distributing device stops, the amount of concrete falling from the spiral cavities is smaller; in addition, due to the arrangement of the multiple layers of spiral blades, the position change between the spiral cavities is small when the spiral distributing device stops every time (for example, the maximum position change angle corresponding to the three layers of spiral blades is 60 degrees), so that the deviation of the concrete amount falling out of the spiral cavities every time is small; by combining the two factors, the problem of inconsistent discharge amount caused by the back cavity of the spiral conveying structure of the distributing machine is avoided, the material conveying stability and the material conveying precision of the distributing machine are improved, the consistency of discharge is improved, and the material distributing requirements of components with small volume and high precision can be met; in addition, the whole structure is simple and easy to realize.

Drawings

Fig. 1 is a schematic structural diagram of a single helical blade stop position in the prior art.

Fig. 2 is a second schematic structural view of a single helical blade stop position in the prior art.

Fig. 3 is a schematic structural diagram of the present invention.

FIG. 4 is a schematic view of the stopping position of the spiral distributing shaft according to the present invention.

FIG. 5 is a second schematic view of the stopping position of the spiral distributing shaft according to the present invention.

The reference numbers in the figures denote: 1. a cloth hopper; 2. a material distribution pipeline; 3. a spiral material distribution shaft; 4. a helical blade.

Detailed Description

As shown in fig. 3, the spiral distributing device for concrete prefabricated parts of the embodiment is particularly suitable for distributing small concrete prefabricated parts; the concrete structure comprises a distributing hopper 1, a distributing pipeline 2 and a spiral distributing shaft 3; the two ends of the distributing pipeline 2 are respectively provided with a feeding hole and a discharging hole, the discharging hole of the distributing hopper 1 is butted with the feeding hole of the distributing pipeline 2, the spiral distributing shaft 3 is arranged in the distributing pipeline 2, and the spiral distributing shaft 3 is provided with a plurality of layers of spiral blades 4 with the same spiral direction at the discharging hole of the distributing hopper 1. When distributing materials, the tail end of the spiral distributing shaft 3 can be divided into a plurality of spiral cavities (back cavities) due to the arrangement of the plurality of layers of spiral blades 4, under the condition that the pipe diameters of the distributing pipelines 2 are the same, the more the spiral cavities are, the less concrete is stored in each spiral cavity, and when the spiral distributing shaft 3 stops, the less concrete falls from the spiral cavities; in addition, due to the arrangement of the plurality of layers of spiral blades, the position change between the spiral cavities is small when the spiral distributing device stops every time (for example, the maximum position change angle corresponding to the three layers of spiral blades 4 is 60 degrees), so that the deviation of the material amount falling out of the spiral cavities every time is small; the two factors are combined, so that the condition that the material distribution amounts of the single helical blades 4 at different stop positions are inconsistent is avoided, the material conveying stability and the material conveying precision of the material distributor are improved, and the material distribution requirements of components with small volume and high precision can be met; in addition, the whole structure is simple and easy to realize. When concrete cloth, the running position program of the cloth machine and the 3 single revolution program of the spiral cloth shaft can be preset, the full automation of the cloth can be realized, the manpower required by the operations of controlling the cloth machine, adjusting and supplementing concrete pouring amount and the like is reduced, and the cloth efficiency is improved.

As shown in fig. 4 and 5, in the present embodiment, the number of the helical blades 4 is three, three helical blades 4 are uniformly distributed on the helical distribution shaft 3 at intervals, and the rotating curved surfaces formed by the helical blades 4 are also parallel to each other. As shown in fig. 5, in a certain stop position, there are three spiral cavities with one horizontal opening, one downward opening and one upward inclined opening, at this time, the concrete in the spiral cavity with the downward opening will drop, and the concrete in the spiral cavity with the upward opening and the horizontal opening will not drop. In the extreme case shown in fig. 4, there are three cavities with one opening up and two openings down, where the two cavities with the openings down also fall less concrete than the single helical blade 4. Of course, in other embodiments, the number of the helical blades 4 can be selected according to actual conditions, such as two, four or more, and three is preferred in terms of cost and cloth precision.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. A spiral distributing device for a concrete prefabricated part comprises a distributing hopper (1), a distributing pipeline (2) and a spiral distributing shaft (3); the cloth is characterized in that the spiral cloth shaft (3) is provided with a plurality of layers of helical blades (4) with the same helical direction at the discharge port of the cloth hopper (1).

2. The spiral distributing device for concrete precast elements according to claim 1, wherein a plurality of layers of the spiral blades (4) are uniformly spaced on the spiral distributing shaft (3).

3. The spiral distributing device for concrete precast elements according to claim 1, wherein the rotation curved surfaces of the plurality of layers of the spiral blades (4) are parallel to each other.

4. The spiral distributing device for the concrete prefabricated parts according to claim 1, 2 or 3, wherein the number of the spiral blades (4) is 2-8.

5. The spiral distributing device of the concrete precast unit according to claim 4, the number of the spiral blades (4) is 3 layers.