KR200278546Y1 - A manufacturing process of cable suppot for a utility pole - Google Patents

Abstract

The present invention relates to a support for processing overhead lines installed on the top of the pole, and to a support for processing overhead lines to improve the mechanical properties of the product as well as simple manufacturing.

The present invention to manufacture a support for processing line,

A first step of cutting the pipe raw material to a predetermined length;

A second step of inserting the raw material into the mold in the first step and expanding and molding the intermediate portion of the raw material by the hydraulic pressure applied to the inside of the raw material and the pressing force applied in the entry direction of the raw material;

A third step of expanding and molding the joint of the material by increasing the water pressure in the state of the second step; By sequentially performing a fourth step of finishing the material, the third step is completed,

It is an advantageous design that manufacture is simple and productability improves.

Description

A manufacturing process of cable suppot for a utility pole

The present invention relates to a support for processing overhead lines installed at the top of a pole, and relates to a manufacturing apparatus for supporting overhead lines for not only manufacturing is simple but also improving the mechanical properties of the product by molding the support by hydraulic pressure. .

In general, the support for the processing branch line is installed on the top of the pole so as to stably support the branch line is widely used.

The support is formed with a different outer diameter of the coupling portion for installing on the upper pole, the intermediate portion formed up and down long, and the cap coupling portion formed on the upper end to couple the cap.

For this reason, conventionally, in order to manufacture a support, the method of attaching by welding after shaping each coupling | bonding part, an intermediate | middle part, and a cap coupling | bonding part, respectively has been common.

However, the following problem has been raised in the manufacturing method of the conventional support.

First, in the whole support, each part must be manufactured separately from the coupling part, the middle part, and the cap coupling part, so that each molding device must be provided separately, and the next process must be moved to connect each part. There was a lot of work.

Second, each of the parts to be attached as a welding means, because each of the cylindrical parts to be fixed after the correct position, that is, concentric circles to be welded, a separate jig should be provided according to the welding work, such as Work time, of course, was a lot of surroundings and time spent preparing work.

Third, after the attachment of each component is completed, cracks are generated in the welded portion, which causes not only a high failure rate, but also a decrease in the mechanical properties of the welded portion, resulting in a decrease in the life of the support.

Fourth, the welding site is exposed to the outside, so the aesthetic appearance is not good, causing a decrease in the value of the product.

The present invention has been researched and developed in order to solve the above problems, and in the manufacture of the support for the processing branch, it can be manufactured in a short time by a simple process by molding step by step in one apparatus, so that the manufacturing cost is minimized. have.

Another technical problem of the present invention is that the entire support is molded integrally without an attachment site, thereby minimizing the failure rate and improving the mechanical properties.

Another technical problem of the present invention is to improve the merchandise because the appearance of the entire support is kept smooth.

1 is a cross-sectional view showing a manufacturing apparatus of the present invention.

2 is a schematic view showing a manufacturing process of the present invention.

* Description of Signs of Main Parts of Drawings *

T: support d1: cap coupling part outer diameter d2: middle part outer diameter

d3: outer diameter of the coupling part M: mold member 1: molding part

2: material

The present invention, in order to manufacture the support for the processing line, the first step of preparing the material by cutting the pipe raw material to a certain length, and the intermediate part by the hydraulic pressure applied to the inside of the material by inserting the material of the first process into the mold A second step for forming the outer diameter, a third step for molding the material formed in the manufacturing step to the outer diameter of the joint by hydraulic pressure, and a second step for cutting and finishing the material formed in the third step. Four steps are carried out sequentially.

The second process and the third process are carried out sequentially in the same mold, the pressure in the third process is increased than the water pressure in the second process, the pressure to expand the material to the outside by this pressure acts, In addition, since the pressing force is applied in the direction in which the material enters the mold, expansion molding of the material is performed. The first, second, third, and fourth processes described above are by known methods, The structure and the function according to the characteristics are in the mold member used in the second process and the third process. Formed surfaces are formed sequentially to form an inner diameter of the intermediate portion forming surface smaller than the inner diameter of the coupling portion forming surface, and smaller inner diameter of the cap coupling portion forming surface than that of the intermediate portion forming surface. The sex and the apparatus so as to be located at the end portion of the penstock by installing the hydraulic pipes to the pressure inside the sphere of the press apparatus so that the forward and backward to the inlet side of the mold inlet side of the mold.

Hereinafter, the configuration and operation of the present invention will be described in detail by the embodiment according to each process as follows.

<1st process>

The first step is a material preparation step, and cuts a pipe having an outer diameter equal to the outer diameter d1 of the cap engaging portion of the support T to a predetermined length.

The length of the pipe is preferably added to a length sufficient than the length of the finished product of the support (T) in consideration of the dimensions of the left and right length is reduced while forming in the second process and the third process, which is the next process.

The present invention is a 1.6mm thick steel pipe with SPS400 material, and the method of preparing a 1900mm material added to the finished product length of 1630mm and cutting the finished product length after completion of molding.

<Second process>

The second step is a step for molding the material prepared in the first step into the outer diameter (d2) of the middle portion of the support (T), and the joining part forming surface (1a) and the intermediate portion molding according to the outer shape of the support (T). A mold member M having a molding portion 1 having a surface 1b and a cap coupling portion molding surface 1c formed therein is prepared to enter the material 2 into the molding portion 1.

At this time, as shown in FIG. The outer diameter of the raw material 2a coincides with the cap engagement portion forming surface 1c;

Subsequently, when the raw material 2 acts as a pressurizing port P of the press in the direction in which the raw material 2 enters the molding part 1, and a high pressure hydraulic pressure is applied to the inside of the raw material 2 by a hydraulic pressure pipe W, (2) is deformed by the pressing force in the longitudinal direction and at the same time extended to the outside by the water pressure from the inside to the outside, so as to be in close contact with the intermediate part forming surface (1b) is molded to the middle part outer diameter (d2) dimensions.

The hydraulic pressure applied to the inside of the raw material 2 and the pressing force applied in the entry direction of the raw material are proportional to the thickness of the raw material 2.

The present invention was molded and manufactured by selecting the thickness of the material (2) to 1.6 mm, wherein the water pressure applied to the material (2) nap was about 500 to 700 kg / ㎠, and the pressure applied to the entry direction of the material was about 200. Molding to minimize the failure rate in the ~ 300㎏ / ㎡ state is made.

<Third process>

The third step is a step for forming the joint part outer diameter (d3) dimension of the material formed in the intermediate part outer diameter (d2) in the second step, and is made in the same mold as the second step and when the second process is completed It runs continuously.

That is, the hydraulic pressure is increased while maintaining the pressing force applied in the entry direction of the raw material at 200 to 300 kg / m 2, which is the same pressing force as in the second step.

When the water pressure is applied at 900 to 1100 kg / m 2, the joining part of the material is brought into close contact with the joining part forming surface 1a to be molded to the joining part outer diameter d3.

The hydraulic pressure applied to the inside of the material in the second and third processes and the pressing force applied in the entry direction of the material are proportional to the material and thickness of the material or the diameter of the part to be molded.

<4th process>

The finishing process of processing the finished material in the second process and the third process to the finished product, the material (2) separated from the mold member by the completion of the second process and the third process is the finished product length Since it is formed longer than the length, the end of the joining part is cut and processed according to the dimensions of the finished product.

In addition, the finished product is manufactured by cutting the coupling hole 11 and forming the reinforcing bar 12.

As described above, in order to manufacture the support for processing overhead lines, since the parts having different outer diameters are sequentially formed by one device, the manufacturing process can be minimized and manufacturing can be performed with less manpower and time. The effect is to make it cheaper.

In addition, since the entire support is molded integrally without a connecting portion, not only the appearance is smooth but also the structure of the raw material is dense, thereby improving the mechanical properties.

In addition, the present invention is an advantageous design that can be applied to any support, regardless of the material and dimensions of the support, as well as can be applied to all industrial products of a circular cylinder having a plurality of outer diameters.

Claims (1)

In order to manufacture the support for overhead line, A first step of cutting the pipe raw material to a predetermined length; A second step of inserting the raw material into the mold member M in the first step and expanding and forming an intermediate portion of the raw material by the hydraulic pressure applied to the inside of the raw material and the pressing force applied in the direction of entry of the raw material; A third step of expanding and molding the joint of the material by increasing the water pressure in the state of the second step; In the known manufacturing apparatus consisting of a fourth step of finishing the material of the third step is completed, The mold member M is formed therein in order from the inlet side of the forming section 1, the joining section forming surface 1a, the middle section forming surface 1b, and the cap joining section forming surface 1c, respectively, sequentially. The manufacturing apparatus of the overhead line support according to claim 1, wherein the pressurizing port (P) inside the press is equipped with a hydraulic pipe (W).