KR101213815B1 - High frequency-heat treatment apparatus of horizontally feeding type with improved feed roller - Google Patents

Abstract

"의 팔각형 형상으로 원통을 형성하고 있는 이송롤러가 파이프의 진입 방향에 대해서 일측으로 기울어진 상태에서 파이프의 진입 경로를 따라 양 옆으로 2 열을 이루며 복수개가 서로 이격되어 설치되어 있는 것을 특징으로 하는 개량된 이송롤러가 설치된 수평 이송식 고주파 열처리 장치 가 제공된다.The present invention relates to a horizontal feed type high frequency heat treatment apparatus provided with an improved feed roller. More specifically, horizontally transported medium and large pipes using a roller conveyor, and the material to be transferred is continuously heat treated while passing through the high frequency heat treatment apparatus. In the feed type high frequency heat treatment apparatus, the improved feed roller which has improved the working environment and reduced the maintenance cost of the equipment by replacing the conventional roller conveyor with the complicated installation and the number of parts used with the improved feed roller of the present invention. It relates to a horizontal feed type high frequency heat treatment apparatus installed.
According to the present invention, a charging table is horizontally fixed and the material is charged, an extraction table which is installed in series with the charging table and the heat treated material is extracted, and a high frequency heat treatment is performed on the material between the charging table and the extraction table. A high frequency heat treatment apparatus comprising a high frequency heat treatment apparatus, a transfer mechanism installed above the charging table and the extraction table, and a motor installed at one side of the charging table and the extraction table to supply driving force to the transfer mechanism. And the transfer mechanism is tapered with an inclined surface forward and backward on top of the charging table and the extraction table.

Characterized in that the feed roller forming the cylinder in an octagonal shape is arranged in two rows on both sides along the entry path of the pipe in a state inclined to one side with respect to the entry direction of the pipe. A horizontal feed high frequency heat treatment apparatus equipped with an improved feed roller is provided.

Description

High frequency-heat treatment apparatus of horizontally feeding type with improved feed roller

The present invention relates to a horizontal feed type high frequency heat treatment apparatus provided with an improved feed roller. More specifically, horizontally transported medium and large pipes using a roller conveyor, and the material to be transferred is continuously heat treated while passing through the high frequency heat treatment apparatus. In the feed type high frequency heat treatment apparatus, the conventional roller conveyor which is complicated in installation and the number of parts used is replaced by the improved feed roller of the present invention, which improves the feed efficiency and turn rate of the heat treated pipe and improves the working environment at the time of work. A horizontal feed type high frequency heat treatment apparatus provided with an improved feed roller.

In general, medium and large pipes are manufactured by cutting a large plate and bending it by a press or by pressing a high pressure three roll banding to form a circle and welding the cut part. Therefore, in the process of welding and banding process inevitably deformed in the internal tissue, the deformed tissue is subjected to a process of restoration through a heat treatment step after manufacturing.

For this heat treatment, conventionally, annealing, which is heated at a constant temperature in a large annealing furnace that can accommodate pipes, and then cooled at a relatively slow rate in a furnace, is heated to austenitization by heating the steel at a high temperature, and then again in air. The method of normalizing to cool was used. However, although the medium and large pipe processing annealing furnaces are large in size, they are expensive to use gas or oil burners to heat the annealing furnaces, and the medium and large pipes are deformed because they cannot receive heat evenly in the annealing furnaces. There was a problem that caused.

In order to solve this problem, a method of using a horizontal feed device and a high frequency heat treatment machine without using an annealing furnace during heat treatment is disclosed in Patent Registration No. 10-0822252, Patent Registration No. 10-0670158 and Patent Registration No. 10-0755273 And Utility Model Registration No. 20-0360916 has been filed in the state.

These registered patents and utility models continuously transfer materials such as pipes and steel bars using a roller conveyor, and heat-treat the materials using a high frequency heat treatment device installed in the center of the roller conveyor. It was possible to heat the pipe continuously by saving the energy and time required to heat the entire space utilization and annealing furnace by placing an induction heating unit that could locally heat or melt.

However, the transfer mechanisms of Patent Registration No. 10-0670158 and Utility Model Registration No. 20-0360916 are connected to the drive shaft and the drive shaft in the process of connecting the roller with the power transmission unit to use the roller conveyor. With the use of a large number of parts, it takes a lot of time to precisely combine each part, it is difficult to cope with the change in the diameter of the product, there is no induction guide to guide the entry of the product is prepared for heat treatment It takes a long time to prepare, and the side of the roller interferes with the progress of the product, there was a problem that the desired straight motion does not occur.

In addition, the transfer mechanism of Patent Registration No. 10-0822252 and Patent Registration No. 10-0755273 is a plurality of transfer rollers are spaced apart from each other on the upper surface of the body portion of the medium and large pipe heat treatment processing inclined in one direction on the plane and coupled to the shaft It is rotated by the shaft in a symmetrical shape where the narrowly sloped surfaces face each other and are connected by a power transmission unit consisting of a primary sprocket and a secondary sprocket. And the chain protrudes out of the body, so there is a high risk of a safety accident during use, and the feed roller is inclined in one direction with respect to the direction of the product, thus affecting the direction of the product during rotation of the feed roller. To force the product to advance due to the concave shape Often a loss of power by a fixed direction, forward movement is a good one rotation of the rotation amount of product was small, there was not a rotational movement when applied to light goods issue.

Therefore, the present invention is to solve the above problems, it can be applied to all products from small to large regardless of the load, and to realize the forward movement of the product while maximizing the rotational movement of the product is not good straightness It is an object of the present invention to provide a transfer mechanism capable of correcting minute distortions by increasing the amount of rotation after heat treatment so as to receive heat evenly.

"와 같은 가로 길이가 긴 팔각형으로 구성하여 직진도가 양호하지 않은 파이프도 팔각형에 의해 이송롤러의 상측과 하측에 생기는 경사면을 따라 원활하게 진입되도록 하는 것을 목적으로 한다. And the cross-sectional shape of the feed roller

It is an object to configure a long octagonal shape, such as "" so that even pipes having a poor straightness can smoothly enter along the inclined surfaces formed on the upper and lower sides of the feed roller by the octagon.

In addition, another object of the present invention is to provide a device capable of responding to a change in the diameter of a pipe so that small and large pipes can be heat treated using a horizontal feed type high frequency heat treatment device.

In addition, by minimizing the number and length of chains used in the equipment, it minimizes the noise during the operation of the equipment and enables the chain to move within the body area of the horizontally conveyed high frequency heat treatment device, thereby minimizing the risk of safety accidents during the operation of the equipment. For another purpose.

"의 팔각형 형상으로 원통을 형성하고 있는 이송롤러가 파이프의 진입 방향에 대해서 일측으로 기울어진 상태에서 파이프의 진입 경로를 따라 양 옆으로 2 열을 이루며 복수개가 서로 이격되어 설치되어 있는 것을 특징으로 하는 개량된 이송롤러가 설치된 수평 이송식 고주파 열처리 장치를 제공한다.In order to achieve the above object, the present invention is a horizontally fixed to the charging table to load the material, the extraction table which is installed in series with the charging table and the heat treated material is extracted, and the material between the charging table and the extraction table A horizontal high frequency heat treatment apparatus including a high frequency heat treatment apparatus for performing high frequency heat treatment, a transfer mechanism provided on the charging table and an extraction table, and a motor installed on one side of the charging table and the extraction table to supply driving force to the transfer mechanism. In the heat treatment apparatus, the transfer mechanism is a cross-section having an inclined surface forward and backward on top of the charging table and the extraction table "

Characterized in that the feed roller forming the cylinder in an octagonal shape is arranged in two rows on both sides along the entry path of the pipe in a state inclined to one side with respect to the entry direction of the pipe. Provided is a horizontal feed type high frequency heat treatment apparatus equipped with an improved feed roller.

The feed roller is connected to the motor and the first chain, and the feed rollers and the feed rollers installed in series are connected to each other by a second chain, and the feed rollers are connected at a predetermined angle to the left with respect to the entrance direction of the pipe. 13 ° ~ 20 °) is provided inclined and the inclination angle of the inclined surface of the feed roller provides a horizontal feed type high frequency heat treatment apparatus installed with an improved feed roller, characterized in that 15 ° ~ 20 °.

The present invention can be applied to all products from small to large regardless of the load, and maximize the rotational movement of the product and at the same time achieve the forward movement of the product, even the pipes that do not have a good straightness after the heat treatment rotation amount It can increase the heat evenly and correct the distortion, and there is a moving table that can cope with the change of the diameter of the pipe, so that the small and large pipe can be heat treated using one horizontal feed high frequency heat treatment device. In addition, by minimizing the number and length of chains used in the facility, the noise is low when operating the facility, and the chain can be moved within the body area of the horizontally conveyed high frequency heat treatment device, thereby minimizing the risk of safety accidents during the operation of the facility.

1 is a plan view of a horizontal feed high frequency heat treatment apparatus of the present invention.
2 is a simplified view of the power transmission unit of the present invention.
3 is an enlarged view of a feed roller;
4 is a sectional view taken along the line 'A-A' of FIG. 2 showing the contact surface of the pipe and the feed roller.

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

1 is a plan view of a horizontal feed high frequency heat treatment apparatus of the present invention, Figure 2 is a simplified view of the power transmission unit of the present invention, Figure 3 is an enlarged view of the transfer roller, Figure 4 shows a contact surface of the pipe and the transfer roller. 2 is a cross-sectional view taken along the line 'A-A' in FIG.

"의 팔각형 형상으로 원통을 형성하고 있는 이송롤러(7)가 파이프(8)의 진입 방향에 대해서 일측으로 기울어진 상태에서 파이프(8)의 진입 경로를 따라 양 옆으로 2 열을 이루며 복수개가 서로 이격되어 설치되어 있는 것을 특징으로 한다.The horizontal feed type high frequency heat treatment apparatus 100, in which the improved feed roller of the present invention is installed, is horizontally fixed and a charging table 1 into which a material is loaded, and a material heat-treated by being installed in series with the charging table 1 is extracted. An extraction table 2, a high frequency heat treatment apparatus 3 for performing a high frequency heat treatment on the material between the charging table 1 and the extraction table 2, and an upper portion of the charging table 1 and the extraction table 2 Horizontal feed type high frequency configured to include a transfer mechanism (4) installed on the side, and a motor (5) installed on one side of the charging table (1) and the extraction table (2) to supply a driving force to the transfer mechanism (4) In the heat treatment apparatus, the transfer mechanism 4 is tapered with an inclined surface 6 on the front and rear of the charging table 1 and the extraction table 2 to form a taper.

In the form of an octagonal shape of a cylinder, the feed rollers 7 are inclined to one side with respect to the direction of the inlet of the pipe 8 and form two rows on both sides along the inlet path of the pipe 8. It is characterized by being spaced apart.

The first feed rollers 7 in each row installed at the position closest to each motor 5 installed in the charging table 1 and the extraction table 2 are transferred to the respective motor 5 and the first chain 9. The plurality of feed rollers 7 which are connected to each other and installed in a line in the direction in which the first feed roller 7 and the pipe 8 are conveyed are connected to each other by the second chain 10 and interlocked with each other. When all the rollers rotate, all the feed rollers 7 rotate to induce entry of the pipe 8 along the inclined surface 6 in the feed rollers 7.

In addition, the feed roller 7 is interlocked with the drive shaft 11 made in a circular shape, both ends of the drive shaft 11 is integrally coupled with the drive shaft 11 and has a plurality of grooves so that the chain can be wound A sprocket 12 is provided, and a bearing 13 is provided between the sprocket 12 and the feed roller 7.

The horizontal feed type high frequency heat treatment apparatus 100 equipped with the improved feed roller according to the present invention has a charging table 1 into which an unheated pipe 8 is charged and an extraction table from which the pipe 8 after heat treatment is extracted. (2) and a high frequency heat treatment apparatus 3 which performs a high frequency heat treatment between the charging table 1 and the extraction table 2.

In addition, a moving table 14 and a fixed table 15 are installed above the charging table 1 and the extraction table 2, and the fixed table 15 is provided with the charging table 1 and the extraction table 2. It is fixedly installed at the top, the moving table 14 is installed on the guide rail 16 can be operated by the handle 17 so as to be movable corresponding to the diameter of the pipe (8). As a result, the horizontal feed type high frequency heat treatment apparatus 100 equipped with the improved feed roller of the present invention can perform heat treatment corresponding to all kinds of pipes 8 from small to large.

A plurality of feed rollers 7 are provided above the moving table 14 and the fixed table 15. The feed rollers 7 are installed in a row on each of the moving table 14 and the fixed table 15 in a state inclined at a predetermined angle (13 ° to 20 °) to the left along the longitudinal direction. This is the angle which can most effectively implement the rotational motion and the straight motion of the pipe 8 used in the present device. When the angle is reduced, the amount of rotation increases, so that the straightness of the pipe 8 can be improved after heat treatment and fine warping. You can correct this, and increasing the angle has the effect of speeding up the straight motion. Therefore, the feed roller 7 of the present invention can implement both the linear motion and the linear motion to the pipe (8).

In addition, the feed roller 7 has a cross-sectional octagonal shape, the end surface is narrow and the central portion is a wide structure inclined outward with respect to the central portion at an angle of 15 ° ~ 20 ° from both ends. This structure is a structure that can correct the direction of entry of the pipe (8), the pipe (8) having a good straightness is in contact with the inclined inclined surface 6 can be guided to the center portion pipe ( It is possible to increase the transfer efficiency of 8).

 Between the feed roller 7 and the feed roller 7 is installed so that the sprocket 12 can be in a straight line with each other to be connected to each other by the second chain (10). This has a structure in which the length of the chain connecting the transport roller 7 and the transport roller 7 to be used is reduced as much as possible to reduce the noise and eliminate the risk of safety accidents.

And the feed roller 7 provided in the inlet of the charging table 1 and the outlet side of the extraction table 2 is connected with the motor 5. This is done by the motor 5, the power transmission sprocket 18, the guide sprocket 19 and the sprocket 12 as shown in FIG. 2, and the motor 5 and the power transmission sprocket 18 are connected to the third chain. Connected by 20, the power transmission sprocket 18 and the sprocket 12 are connected by a first chain 9; Since the moving table 14 is movable, the spacing between the sprockets 12 of the feed rollers 7 to which the first chain 9 is connected is not constant, so as to maintain the tension of the first chain 9. The guide sprocket 19 is needed. The guide sprocket 19 is installed between the sprocket 12 and the power transmission sprocket 18 installed on the feed roller 7 so as to be able to move back and forth so that the tension of the first chain 9 is always maintained.

A high frequency heat treatment apparatus 3 is provided between the charging table 1 and the extraction table 2 to heat-treat the pipe 8. The high frequency heat treatment apparatus 3 uses a general high frequency heat treatment apparatus 3 used in the prior art.

Hereinafter, the operation of each component along the process of heat-treating the pipe 8 by using the horizontal feed type high frequency heat treatment apparatus 100 provided with the improved feed roller of the present invention will be described.

First, the pipe 8 is placed on a portion of the feed roller 7 of the charging table 1. When the motor 5 is operated, the motor 5 is connected to the power transmission sprocket 18 and the third chain 20, and the power transmission sprocket 18 is connected to the sprocket 12 of the feed roller 7. Since it is connected to the first chain 9, the sprocket 12 of the feed roller 7 is rotated. The rotating sprocket 12 causes the driving shaft 11 integrally connected to the sprocket 12 to rotate, and the feed roller 7 integrally connected to the driving shaft 11 rotates in the same direction. Since the conveying roller 7 and the conveying roller 7 is interlocked with the second chain 10, all the conveying rollers 7 are rotated. The rotating feed roller 7 generates a force in the tangential direction of the circumferential surface and transmits the force to the pipe 8, and the feed roller 7 moves at a predetermined angle (13 ° to 20 °) to the left along the longitudinal direction. Since it is tilted, the force acts as an intermediate region in the lateral and longitudinal directions. This results in the contact between the pipe 8 and the feed roller 7 as shown in the sectional view taken along the line A-A of FIG. 2 showing the contact surface of the pipe 8 and the improved feed roller 7 shown in FIG. The force is transmitted to the pipe 8 in the tangential direction of the circumferential surface of the feed roller 7 which rotates about (11). In order to suppress the deformation of the pipe 8 by the transmitted force, a rounding treatment was performed outside the contact point of the feed roller 7 as shown in FIG. As a result, the pipe 8 has a forward motion and a rotational motion by the weight of the pipe 8 and the force applied by the feed roller 7. And the pipe (8) for the rotational movement and the forward movement in contact with the inclined surface (6) formed in the feed roller 7 always maintains its direction of travel, and automatically passes through the high frequency heat treatment apparatus (3) The heat treatment is performed by the high frequency heat treatment apparatus 3, and then the heat is removed from the room temperature through the extraction table 2, leaving the horizontal feed type high frequency heat treatment apparatus 100 in which the improved feed roller is installed. At this time, since the feed roller 7 on the extraction table 2 also has the same rotational motion as the charging table 1, the pipe 8 also has a rotational motion and a straight motion due to this motion. Influence of (8) makes it possible to minutely correct the distortion of the pipe 8 in which the straightness is not good.

Therefore, in the horizontal feed type high frequency heat treatment apparatus 100 in which the improved feed roller of the present invention is installed, the pipe 8 is mounted on the feed roller 7 as shown in FIG. It is inserted into and receives the force, and since there is a moving table 14, it can be applied to all products from small to large regardless of the load, maximizing the rotational movement of the product and at the same time achieving the forward movement of the product Pipe 8, which does not have good straightness, can also be finely corrected for distortion by increasing the amount of rotation after heat treatment, and minimizes the number and length of chains used in the equipment, so that the noise is low when operating the equipment, and the chain is horizontally transferred By moving within the body area of the high frequency heat treatment system, the risk of safety accidents during operation of the facility is minimized.

1: loading table 2: extraction table
3: high frequency heat treatment apparatus 4: transfer mechanism
5: motor 6: slope
7: feed roller 8: pipe
9: first chain 10: second chain
11: drive shaft 12: sprocket
13: bearing 14: moving table
15: fixed table 16: guide rail
17: handle 18: power transmission sprocket
19: guide sprocket 20: third chain

Claims (2)

A charging table 1 fixed horizontally, into which the pipe 8 is charged, an extraction table 2 in which the pipe 8 which is installed in series with the charging table 1 and heat treated is extracted, and the charging table 1 ) And a high frequency heat treatment apparatus (3) for performing a high frequency heat treatment on the pipe (8) between the extraction table (2), a transfer mechanism (4) provided on the charging table (1) and the extraction table (2), In the horizontal feed type high frequency heat treatment apparatus comprising the motor 5 installed on one side of the charging table 1 and the extraction table 2 to supply a driving force to the transfer mechanism 4, the transfer mechanism 4 ) Has an inclined surface 6 at the front and rear of the charging table 1 and the extraction table 2.

The cylindrical roller having an octagonal cross section of "is formed in two rows on both sides along the entry path of the pipe 8 in a state inclined to one side with respect to the entry direction of the pipe 8, and a plurality of A horizontal feed type high frequency heat treatment apparatus provided with an improved feed roller, characterized by being spaced apart.
The first feed rollers (7) of each row installed in a position closest to each of the motors (5) installed in the charging table (1) and the extraction table (2) among the feed rollers (7). Connected to the motor 5 and the first chain 9; The first conveying roller 7 and the plurality of conveying rollers 7 installed in a line in the direction in which the pipe 8 is conveyed are connected and interlocked with each other by a second chain 10; The feed roller 7 is installed at an angle (13 ° to 20 °) to the left with respect to the entrance direction of the pipe; Horizontal feed type high frequency heat treatment apparatus provided with an improved feed roller, characterized in that the inclination angle of the inclined surface 6 of the feed roller (7) is 15 ° ~ 20 °.

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