KR20090053515A - Apparatus for gringing inner surface of pipe - Google Patents

Abstract

A pipe inner polishing apparatus, such as a wire winding pipe, which is provided in a pipe, in particular, a laying head which is a hot wire winding facility, in which a hot wire passes through it, is provided.

The pipe inner surface polishing apparatus includes a high pressure fluid supply pipe provided as a device traction means inside a pipe while supplying a high pressure fluid, an apparatus body means connected to the high pressure fluid supply pipe and towed inside the pipe, and provided in the device body means. It comprises a power generating means for generating a rotational power by using a high pressure fluid supplied, and a pipe polishing means for polishing the inner surface of the pipe in connection with the power generating means.

According to the present invention, by removing the protrusions formed on the inner surface of the pipe by grinding the inner surface of the pipe passing a specific material through the inside, to effectively prevent the occurrence of surface defects of the material passing through the pipe, and ultimately the pipe An improved effect can be obtained that improves the quality of the material produced by the passage.

Pipes, cold head fed, hot wire, pipe internal grinding

Description

Pipe polishing machine {APPARATUS FOR GRINGING INNER SURFACE OF PIPE}

The present invention relates to an inner surface polishing apparatus of a pipe, in particular, a laying head, which is a hot wire winding device, which is wound at the time of discharging while the hot wire is passed. More specifically, a specific material passes through the inside such as a cold head pipe. By grinding the inner surface of the pipe to remove protrusions formed on the inner surface of the pipe, thereby effectively preventing the occurrence of surface defects of the material passing through the pipe, thereby ultimately improving the quality of the material produced through the pipe. A pipe internal polishing apparatus.

A facility in which a product is produced as a specific material passes through an inner surface of a pipe may be a wire rod product production facility.

For example, a wire rod having a ball shape using a billet heated at a high temperature by a heating furnace is subjected to a wire rolling process, and a hot wire rod having a predetermined diameter is produced as a wire coil while being continuously wound through a facility called a laying head.

Meanwhile, FIG. 1 illustrates a process of winding such hot wire rod with a wire coil.

That is, as shown in FIG. 1, in order to prevent the billet from being wound into the wire coil 110 ′, the hot wire 110 having a straight shape just before being wound up through various hot rolling processes is laid. Is wound continuously into a circular ring shape.

At this time, the cold head 122 of the laying head 120 is provided with a ring-shaped cold head pipe 124 along the head, and the circular pipe 124 of such a cold head 122 hot wire material 110 Is wound around the wire coil 10 of the circular ring shape while being discharged through the high speed.

However, looking at the manufacture of such a cold head pipe 124, the pipe is heated in a heating furnace, the pipe is formed in a spiral shape in accordance with the cooling head shape of the laying red, and the cold head pipe thus formed is heat treated.

However, an oxidation scale or other minute protrusions may be formed on the inner surface of the pipe 124 during the heating, winding, and heat treatment of the cold head pipe.

Therefore, when the hot wire 110 passes through the cold head pipe 124 of the laying head 120 at high speed, a surface defect that is fatal to the quality of the product on the surface of the wire is caused by an oxidation scale or a protrusion fixed to the inner surface of the pipe. Let's do it.

However, until now, no cold head pipe inner surface polishing apparatus has been proposed, which prevents the surface quality of the wire rod from being damaged by grinding the inner surface of the cold head pipe 124 through which such a material, in particular, the hot wire passes.

Accordingly, the applicant of the present invention proposed the pipe inner surface polishing apparatus of the present invention to improve the quality of the product produced through the pipe by easily polishing the inner surface of the pipe, especially the pipe through which the high temperature material passes, using a simple device. will be.

The present invention has been made in order to solve the conventional problems as described above, the object of the present invention is to remove the protrusions formed on the inner surface of the pipe by grinding the inner surface of the pipe passing a specific material through the inside of the material passing through the pipe It is to provide a pipe internal polishing apparatus that effectively prevents the occurrence of surface defects, and ultimately improves the quality of the material produced through the pipe.

As one technical aspect for achieving the above object aspect, the present invention provides a high-pressure fluid supply pipe provided as a device traction means inside the pipe while supplying a high pressure fluid;

An apparatus body means connected to the high pressure fluid supply pipe and towed inside the pipe;

Power generating means for generating rotational power by using a high pressure fluid provided and supplied to the apparatus body means; And,

Pipe polishing means for polishing an inner surface of the pipe in association with the power generating means;

It provides a pipe inner polishing apparatus configured to include.

Preferably, the high pressure fluid supply pipe is provided as a high pressure flexible pipe for supplying high pressure gas or high pressure water but connected to one end of the device body to maintain traction, and the pipe is a laying head pipe through which the hot wire passes. It can be configured.

More preferably, the device body means, the cylindrical device body of the size connected to the high-pressure fluid supply pipe and can be inserted into the pipe, provided on the outside of the device body and in contact with the inner surface of the pipe to enable the movement of the device body It can be configured to include a moving ball.

And, the movable ball is fitted to prevent the departure from the groove portion formed in the outer body assembled to the outer surface of the device body and the spring is linked.

The power generating means may include rotating shafts rotatably installed inside the cylindrical body provided in the apparatus body means, and wings that generate rotational force by collision of a high pressure fluid supplied while being installed at an end of the rotating shaft. Can be configured.

At this time, the rotating shaft is characterized in that the rotatably installed inside the bearing is supported as a fixed stand installed in the device body.

Alternatively, the high pressure fluid supply pipe is provided as an air supply pipe, and the power generating means is disposed inside the cylindrical device body provided in the device body means in association with the air supply pipe connected to the device sea means, and forwardly the polishing means. This connection can be provided by an installed air motor.

Preferably, the polishing means includes a link connected to the end of the rotation shaft or the air motor constituting the power generating means to be unfolded during rotation, and the polishing member provided at the end of the link.

More preferably, the polishing member is provided as a polishing ball, and the link is rotatably installed with a pin at an end of the rotating shaft or a protrusion provided on the rotating shaft of the air motor, and consists of a pair of two or more polishing balls when rotating the rotating shaft. It can be configured to be polished while rotating on both sides of the pipe inner surface.

Thus, according to the pipe inner surface polishing apparatus of the present invention, by removing the protrusions formed on the inner surface of the pipe by grinding the inner surface of the pipe through which a specific material passes, such as cold head pipe, the surface defect of the material passing through the inside of the pipe is generated It is to provide an excellent effect to effectively prevent that.

Accordingly, the pipe inner surface polishing apparatus of the present invention ultimately improves the quality of the material produced through the pipe.

In addition, since the structure of the device is simplified because it is in the form of fluid power rather than electric power, it is easy to manufacture, maintain and maintain the maintenance, and it is possible to provide a very practical pipe internal polishing apparatus without burdening the cost.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

First, Fig. 2 shows a state of use of the pipe inner surface polishing apparatus 1 according to the present invention, and Fig. 3 to Fig. 5 show the overall configuration of the apparatus of the present invention as shown in the configuration diagram and the front view, respectively.

That is, as shown in FIG. 2, the pipe inner surface polishing apparatus 1 of the present invention is a pipe 2, for example, a curved pipe 2 corresponding to the cold head pipe of the laying head 120 described in FIG. 1. Move the inside of the pipe to remove scales or protrusions on the inner surface of the pipe.

On the other hand, the apparatus 1 of the present invention, as shown in Figures 4 and 5, and the high-pressure fluid supply pipe 10 which is provided as a device traction means in the pipe (2) while supplying a high pressure fluid largely; Power generating means connected to the high pressure fluid supply pipe (10) to the device body means 30 to be pulled in the pipe, and the high pressure fluid is provided and supplied to the device body means 30 to generate a rotational power ( 50) and grinding means 70 for grinding the inner surface of the pipe in connection with the power generating means 50.

Therefore, as shown in FIG. 2, the operator allows the high pressure fluid supply pipe 10 to pass through the pipe 2 by using a towing end or wires not shown in the inside of the pipe 2. Pass the pipe (2) in the state connected by).

Then, in the state in which the high pressure fluid supply pipe 10 is wound on the reel 12, the end thereof is connected to a blowing facility 16 or a high pressure water supply facility (not shown) supplying high pressure water with a connection pipe 18, and a reel ( 12) while pulling the high pressure fluid supply pipe (10).

At this time, as described in detail below, the device body means 30 connected to the high pressure fluid supply pipe 10, the polishing means 70 provided in the device body means 30 is when the supply pipe is pulled in the pipe, The inner surface of the pipe 2 is polished sequentially while moving integrally.

That is, the apparatus body means 30 is towed by the high pressure fluid supply pipe 10 moving along the inner surface of the pipe 2 as shown in FIG. 3, and the power generating means 50 installed in the apparatus body means 30 is supplied. It is rotated by colliding with the high-pressure fluid, the grinding means 70 associated with the power generating means 50 is rotated so that the polishing ball 74 is in contact with the inner surface of the pipe and polished continuously.

Therefore, the apparatus of the present invention is operated until the high pressure fluid supply pipe 10 provided as the towing means is withdrawn from the pipe. Of course, it is assumed that the supply of the high pressure fluid is implemented together.

For example, as shown in FIG. 6, in the apparatus of the present invention, if the high pressure fluid (see G of FIG. 3) is not supplied through the high pressure fluid supply pipe 10, the power generating means 50 does not operate. The grinding ball 74 of the grinding means 70 is in a state where the link 72 is sag.

Meanwhile, the components 10, 30, 50, and 70 of the pipe inner surface polishing apparatus 1 of the present invention will be described in detail.

First, as shown in Figure 2, in the apparatus 1 of the present invention, the high pressure fluid supply pipe 10, the high pressure gas, for example, supply a high pressure air or high pressure water, but one end of the device body 30 It may be provided as a high pressure flexible tube to be connected to and maintain the traction force.

For example, such a high pressure fluid of the present invention may use high pressure air or high pressure water, but in the case of high pressure air, no treated water is generated so that finishing treatment is not necessary. It is preferable because it serves to clean the foreign materials when contacting and polishing the inner surface of the pipe.

In addition, the high pressure fluid supply pipe 10 is preferably connected to the connection end 33 of one end of the device body 32 of the device body means 30 by a fastening band 35, as shown in FIG. The supply pipe uses a pipe that can be bent as a high-pressure flexible pipe (usually a rubber jacketed tube) having a shim used as a hydraulic hose.

In addition, the pipe 2 may be provided for a laying head pipe through which the hot wire material described above passes.

Of course, it is not necessarily limited thereto.

Next, as shown in Figures 4 and 5, in the device of the present invention, the device body means 30, and the cylindrical device body 32 of the size that the high-pressure fluid supply pipe is connected and can be inserted into the pipe; It may be configured to include a moving ball 34 provided on the outside of the device body 32 to allow the movement of the device body in contact with the inner surface of the pipe.

In addition, the movable ball 34 is fitted to prevent the departure from the groove portion 38 formed in the outer body 36 is assembled to the outer surface of the device body and the spring 40 is assembled in association.

Therefore, the cylindrical device body 32 enables the internal installation of the power generating means 50 to be described later, while the one-sided moving balls 34 of the outer edge are in close contact with the inner surface of the pipe 2. Enable movement of

At this time, the outer body 36 uses a high-strength plastic or metal workpiece having a predetermined thickness, and the outer body 36 is the groove portion 38 before being assembled in the form of interference fit on the outer edge of the cylindrical device body (32). ) To assemble the moving ball 34 via the spring (40).

On the other hand, as shown in Figure 7, the groove portion 38 is the tip end portion (38a) is protruding so that the moving ball 34 is pushed by the spring 40, but is not separated from the groove portion 38 Can't.

However, such a moving ball 34, which is easily worn, can be easily replaced by disassembling the outer body 36 from the device body.

In addition, since the moving ball 34 is in contact with the inner surface of the pipe even when the rotation of the device body means 30 occurs when the actual device is used, the moving ball 34 provides a simplified device structurally. Will provide an advantage.

4 and 5, in the apparatus of the present invention, the power generating means 50 provided in the apparatus body means 30 rotates inside the cylindrical apparatus body 32. Rotation shaft 52 is installed as possible, and the high pressure fluid is provided at the end of the rotary shaft 52 is composed of wings 54 to generate a rotational force by collision.

At this time, the rotation shaft 52 of the power generating means 50 is assembled to the inside of the bearing 58, which is supported as a fixing table 56 installed inside the device body 32 is rotatably installed.

Therefore, as shown in FIG. 4, when the high pressure fluid, for example, high pressure air is supplied through the supply pipe 10, the rotary shaft 52 is supported by the bearing 58 inside the device body 32. Since G passes through while colliding with the blade 54, the rotary shaft 52 is rotated by the blade at this time.

Therefore, the grinding means 70 connected to the end of the rotary shaft 52 is in the state of FIG. 6 and rotates in the state of FIG. 3 while the link 72 whose length is adjusted to the diameter of the pipe 2 is unfolded. As a result, the inner surface contact of the pipe of the polishing ball 74 is realized, so that the inner surface of the pipe is polished.

Next, as shown in FIGS. 4 and 5, the grinding means 70 is a link 72 provided at the end of the rotating shaft 52 provided in the power generating means 50 to be unfolded by centrifugal force when the rotating shaft rotates. And, it may be configured to include a polishing ball 74 is installed at the end of the link (72).

In this case, as shown in FIG. 3, the link 72 is rotatably installed at the protrusion 52a formed at the end of the rotation shaft 52 by a pin 72a, and is configured in at least one pair to rotate the rotation shaft 52. Two or more polishing balls rotate on both sides of the inner surface of the pipe to polish the inner surface of the pipe.

On the other hand, although not shown in a separate drawing, instead of the rotating shaft 52 and the bearing 58 of the power generating means 50 in FIG. 4 by using an air motor (not shown) using a fixing table 56 of the device body means It is also possible to arrange | position inside the cylindrical apparatus body 32, and to connect the grinding | polishing means mentioned above to the rotating shaft of an air motor.

In this case, the high-pressure fluid supply pipe 10 in Figure 4 is connected to the inside of the device body may adjust the structure to supply air to the air motor. In this case, the diameter of the tube may be smaller than that of FIG. 4.

Therefore, when the air motor rotates during air supply, the polishing member 74 of the polishing ball connected as the link 72 at the end of the rotation shaft polishes the inner surface of the pipe.

In the case of using such an air motor, it is possible to constantly adjust the actual abrasive member rotational force to the capacity of the air motor, and to simplify the structure somewhat.

Accordingly, the pipe inner surface polishing apparatus 1 of the present invention simplifies the overall structure of the device by using high pressure air or high pressure water as a power source without using electric power, and effectively performs the polishing of the inner surface of the pipe effectively, When winding the wire is to prevent the occurrence of defects, such as the thickness of the wire surface.

1 is a schematic diagram showing a wire winding pipe as an example of a pipe associated with a pipe inner surface polishing apparatus of the present invention;

Figure 2 is a schematic diagram showing an example of use of the pipe inner surface polishing apparatus according to the present invention

3 is a main view showing the operation of the apparatus of the present invention;

4 is a structural diagram showing the overall configuration of the present invention apparatus of FIG.

5 is a schematic front view of FIG. 4

6 is a schematic view showing the grinding means standby state when the apparatus of the present invention is not operated.

7 is a main view of the device of the present invention;

Explanation of symbols on the main parts of the drawings

1 .... Inner Polishing Pipe 10 .... Polished Pipe

10 .... High pressure fluid supply line 30 .... Device body means

32 .... device body 34 .... moving ball

36 .... Outer Body 38 .... Home

40 .... spring 50 ... power generation means

52 .... axis of rotation 54 .... wings

56 .... Fixture 58 .... Bearing

70 .... Power Generation 72 .... Link

74 .... Polishing Ball

Claims (9)

A high pressure fluid supply pipe provided as a device traction means inside the pipe while supplying a high pressure fluid; An apparatus body means connected to the high pressure fluid supply pipe and towed inside the pipe; Power generating means for generating rotational power by using a high pressure fluid provided and supplied to the apparatus body means; And, Pipe polishing means for polishing an inner surface of the pipe in association with the power generating means; Pipe inner polishing device configured to include. The method of claim 1, The high pressure fluid supply pipe is supplied as a high pressure flexible pipe for supplying high pressure gas or high pressure water but connected to one end of the device body to maintain traction force, The pipe is an internal grinding apparatus of the pipe, characterized in that consisting of the laying head pipe passing through the hot wire. The method of claim 1, The device body means, the cylindrical device body is connected to the high pressure fluid supply pipe and the size of the pipe can be inserted; A moving ball provided on the outside of the device body to allow movement of the device body in contact with the inner surface of the pipe; Pipe inner surface polishing apparatus comprising a. The method of claim 3, The moving ball is inserted into the groove portion formed in the outer body assembled to the outer surface of the device body is fitted inside the pipe grinding apparatus, characterized in that the spring is connected. The method of claim 1, The power generating means may include a rotation shaft rotatably installed inside the cylindrical body provided in the apparatus body means; And, Wings that are installed at an end of the rotating shaft to collide with the supplied high pressure fluid to generate rotational force; Pipe inner surface polishing apparatus, characterized in that consisting of. The method of claim 5, And the rotating shaft is rotatably installed inside the bearing supported as a fixing stand installed inside the apparatus body. According to claim 1, wherein the high pressure fluid supply pipe is provided as an air supply pipe, The power generating means is connected to the air supply pipe connected to the device sea means, the pipe is characterized in that it is arranged inside the cylindrical device body provided in the device body means and composed of an air motor connected to the polishing means in front Internal polishing device. The method according to claim 1 or 7, The polishing means, A link connected to an end portion of the rotating shaft or the air motor constituting the power generating means so as to expand when rotated; And, An abrasive member installed at an end of the link; Pipe inner surface polishing apparatus comprising a. The method of claim 8, The polishing member is provided as a polishing ball, The link is installed on the end of the rotary shaft or the protrusion provided on the rotary shaft of the air motor with a pin, and is composed of a pair so that two or more abrasive balls are rotated on both sides of the inner surface of the pipe during rotation of the rotating shaft, so that the inner surface of the pipe is configured to be polished. Polishing device.

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