KR20040102730A - Device for removing oil on strip in welding machine - Google Patents

Abstract

PURPOSE: To provide a device for removing oil on the surface of strip in welding machine, which installed in a strip welding line and completely removes foreign materials such as oil remained on a welding portion of the strip before welding to improve weldability and prevent defects of the strip. CONSTITUTION: The device comprises a moving part comprising a moving part including a supporting frame(20) put on a traveling base of a strip welding machine and moved in a width direction of the strip, a driving motor installed at one side of the supporting frame, and a pinion gear installed on a rotary shaft of the driving motor and engaged with a rack formed on a lower part of the traveling base; and a flame part including an injection pipe(30) installed on a lower part of the supporting frame to inject flame onto the surface of the strip, fuel hose(31) and air hose(32) for supplying fuel and air into the injection pipe, and an ignition rod(33) and a conducting rod(34) installed at a front part of the injection pipe to generate ignition spark in air mixed fuel ejected so that flame is emitted at a welding portion of the strip.

Description

Device for removing oil on strip in welding machine

The present invention relates to a welding facility for welding a strip, and more particularly to a foreign material removal device for removing the foreign matter, such as rolling oil remaining in the welding portion of the strip to clean before welding.

Generally, welding machine is mainly used in pickling line for removing scale layer attached to the surface of stainless hot rolled coil and annealing line for imparting mechanical and physical properties. It is used to weld the tip and the tip of post coil.

3 is a view showing a general welding line in the figure is a Mag Welder welder, the Mag Welder welder is a vertical guide (11) installed vertically on both ends of the base 10, the strip proceeds; Lifting member 12, which is lifted up and down along the vertical guide 11, the driving base 13 is installed on both lifting members 12 and placed in the strip width direction, the running rail is installed in the longitudinal direction along the driving base 14, a welder main body 15 mounted on the travel base and moving along the travel rail to weld the front and rear ends of the trailing strip.

However, if there is foreign matter on the welding part of the strip to be welded, there is a possibility of welding defects.In particular, when welding 400 series stainless strips, when foreign substances with oil such as foreign matter or rolling oil are on the welding part, weldability is poor. There is a problem, and accordingly, prior to welding, an operator cleans the surface of the strip using a jig or the like.

However, the conventional structure has a disadvantage that the work is difficult and time-consuming and the worker is exposed to the risk of safety accident as the above-mentioned prior work is made by hand.

In addition, the removal of oil by the mop, etc. has a limitation that does not completely remove the foreign matter from the surface of the strip, resulting in a problem that the strip plate, break in the post-process due to a decrease in weldability, which causes a decrease in productivity.

Accordingly, the present invention is to solve the above-mentioned problems, it is installed in the strip welding line to be able to completely remove the foreign substances such as oil remaining on the welding portion of the strip before welding is made to increase the weldability and strip It is an object of the present invention to provide a strip surface oil removing device of a welder which can prevent defects.

1 is a perspective view showing a typical Mag welder welder,

Figure 2 is a perspective view showing a state in which the strip surface oil removal apparatus is installed in the welder in accordance with the present invention,

Figure 3 is a perspective view of the strip surface oil removal apparatus according to the present invention.

Explanation of symbols on the main parts of the drawings

13: driving base 20: support frame

21: drive motor 22: rack

23: pinion gear 30: injection pipe

31: fuel hose 32: air hose

33: ignition rod 34: energized rod

40: air pipe 41: injection nozzle

42: supply hose 50: blocking plate

60: driving cylinder 61: suction hood

62: suction pipe 63: brush roll

64: working motor

In order to achieve the object described above, the present invention is to remove the foreign substances such as oil by firing a flame on the surface of the strip while moving to the welding site before the welding operation.

To this end, the present invention includes a moving part installed in the welding machine of the welding line and moving along the welding part of the strip, and a flame part installed in the moving part for firing a flame on the welding part of the strip.

In addition, the present invention may further include an air injection unit for injecting air to remove the remaining residues burned by the flame portion from the welding site.

In addition, the present invention may further include a cleaning unit for finally wiping the welding portion of the strip.

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

Figure 1 is a perspective view showing a typical welder welder, Figure 2 is a perspective view showing a state in which the strip surface oil removal device is installed in the welder, Figure 3 shows a strip surface oil removal device according to the present invention. One perspective view.

First, the Mag Welder welder is installed vertically at both ends of the base 10 placed in the width direction of the strip, and is vertically lifted up and down along the vertical guide 11 and the vertical guide 11 disposed at both side ends of the strip, respectively. A traveling base 13 provided in the member 12, both lifting members 12 and placed in the strip width direction, a traveling rail 14 installed in the longitudinal direction along the traveling base, and seated on the traveling base, It includes a welder main body 15 for welding the front end of the line, the trailing strip while moving along the running rail and the drive means for moving the welder body is supported on the running base and the running rail.

Accordingly, the welder main body 15 is welded to the leading and trailing strip ends while moving in the strip width direction along the driving base according to the operation of the driving means.

The driving means is generally well known and used in a Mag Welder welder, and will not be described below.

Looking at the oil removal device of the present invention, as shown in the above drawings, the welding base body is installed in a state spaced apart from the welder body 15 by a predetermined distance to the traveling base 13 and the running rail 14 of the welder main body Prior to the progress of the step (15), the structure moves in the strip width direction.

That is, the oil removing device of the present embodiment is installed on the traveling base 13 of the welder and supported by the traveling rail 14 and moved along the traveling base 13, and installed below the moving part. Flame part for firing the flame on the welding portion of the strip 100, the air injection portion and the air injection portion for injecting air so as to be removed from the welding portion of the residue remaining after combustion and burned by the flame portion in the flame portion It is disposed in succession to include a cleaning unit for finally wiping the welded portion of the strip (100).

The moving part is provided with a support roller 24 at an upper end thereof so that the support frame 20 is movably placed on the driving base 13, a drive motor 21 installed at one side of the support frame 20, and this drive. It includes a pinion gear 23 is installed on the rotating shaft of the motor 21 and meshed with the rack 22 formed at the lower end of the traveling base 13.

Accordingly, when the driving motor 21 is rotated, the support frame 20 moves along the driving base 13 via the pinion gear 23 and the rack 22.

In addition, one side of the support frame 20 is provided with a guide roller 25 in close contact with both ends of the running rail 14 to prevent flow when the support frame 20 is moved.

On the other hand, the flame portion is installed on the lower end of the support frame 20, the injection pipe 30 for injecting the flame toward the surface of the strip 100, and the fuel for supplying fuel and air to the injection pipe 30 It includes a hose 31 and the air hose 32, the ignition rod 33 and the energizing rod 34 for generating an ignition spark in the air-mixed fuel is ejected to the injection pipe 30.

Therefore, when a spark is generated between the ignition rod 33 and the energizing rod 34, a flame is generated while the fuel ejected through the injection pipe 30 is ignited, and foreign substances such as oil on the surface of the strip 100 are burned by the flame. To be removed.

In addition, the air injection unit is installed at the lower end of the support frame 20 in a state spaced apart from the injection pipe 30 by the air pipe 40 toward the strip 100, and is installed at the bottom of the air pipe 40 And a spray nozzle 41 for spraying air onto the surface of the strip 100, and a supply hose 42 for supplying air to the air pipe 40.

According to this embodiment, a blocking plate 50 is installed between the injection pipe 30 and the air pipe 40 to block the flame.

On the other hand, the cleaning unit is spaced apart from the air pipe 40 by a predetermined distance to the drive cylinder 60 is installed vertically to the support frame 20, the piston rod of the drive cylinder 60 is installed on the strip 100 The suction hood 61 placed above and the bottom thereof is open, the suction hood 61 is installed in communication with one side of the suction hood 61, and is rotatably installed in the strip length direction inside the suction hood 61. Brush roll 63 is in contact with the surface of the strip 100, the suction hood 61 is installed on one side and is connected to the brush roll 63 includes an operating motor 64 for rotating the brush roll (63) .

Hereinafter, the operation of the present invention will be described.

When the strip 100 is moved to reach the Mag welder welding facility, the wire strip 100 and the post strip 100 are moved while the welder main body 15 moves while the wire strip 100 and the post strip 100 are respectively gripped by the clamps. 100 is welded, and the oil removal device, which is the device before the welding operation by the welder, is moved before the welder main body 15 to burn off foreign substances such as oil on the surface of the strip 100.

After a few seconds, the welder main body 15 moves along the oil removal device to weld the tip of the strip 100 from which foreign substances such as oil are removed.

That is, the support frame 20 is moved along the traveling base 13 when the apparatus is operated before the welding is performed. When the driving motor 21 installed in the support frame 20 is rotated, the driving motor 21 of the driving motor 21 is rotated. The pinion gear 23 installed on the rotating shaft rotates, and the pinion gear 23 is engaged with the rack 22 at the bottom of the driving base 13 so that the support frame 20 moves along the driving base 13. do.

At this time, the support frame 20 is supported by the support roller 24 and the guide roller 25 installed on the driving base 13 and the running rail 14, respectively, can move along the running rail 14 without flow. Will be.

Here, as the support frame 20 moves, the valves 35 and 36 installed in the air hose 32 and the fuel hose 31 are opened to supply fuel and air to the injection pipe 30. 30) Power is supplied to the ignition rod 33 installed at the tip to cause a spark between the ignition rod 33 and the energizing rod 34.

As the fuel injected through the injection pipe 30 is ignited by the spark, the injection pipe 30 fires a flame toward the surface of the strip 100.

Therefore, foreign matters such as oil on the surface of the strip 100 may be burned by the flame fired toward the surface of the strip 100 as described above.

On the other hand, the valve 43 of the supply hose 42 installed in the support frame 20 with the generation of flame is open to supply air to the air pipe 40, the air supplied in this way is an air pipe (40) High pressure is sprayed on the surface of the strip 100 through a spray nozzle 41 installed at the bottom.

Therefore, foreign substances such as oil on the surface of the strip 100 in the process of moving the support frame 20 along the strip 100 are first burned by a flame and then continuously connected to the high pressure air sprayed through the injection nozzle 41. Blown off and removed from the weld.

In addition, at the same time as the support frame 20 moves, the driving cylinder 60 installed in the support frame 20 is extended to lower the suction hood 61, and the operation motor 64 installed at the suction hood 61 is moved. It is driven to rotate the brush roll (63) installed inside the suction hood 61, the air pump (not shown) connected to the suction pipe 62 is operated to suck the air through the suction hood (61).

Accordingly, when the support frame 20 proceeds along the strip 100, the brush roll 63 installed inside the suction hood 61 passes through the strip 100 while the suction hood 61 passes through the flame and air injection. The welding area of the strip 100 is wiped to remove the foreign substances that have not been removed even through flame and air spraying. In this process, the foreign substances dropped from the strip 100 by the brush roll 63 are sucked into the hood. It is sucked through the suction pipe (62) installed in the).

As described above, according to the strip surface oil removing device of the welding machine according to the present invention, it is possible to mechanically remove foreign substances such as oil from the welding part, thereby reducing the time and effort required for the removing operation and increasing the removal efficiency. do.

In addition, it is possible to prevent the safety accidents generated during the conventional manual work, and to prevent the strip from breaking and breaking due to poor weldability by foreign substances such as oil to obtain an additional effect to increase the yield and increase the quality of the product.

Claims (4)

A support frame which is placed on the traveling base of the strip welding machine and moves along the traveling base in the strip width direction, a driving motor installed on one side of the supporting frame, and a rack which is installed on the rotating shaft of the driving motor and is fitted to the rack formed at the lower end of the traveling base. A moving unit including a pinion gear; An injection pipe installed at a lower end of the support frame to inject a flame toward the surface of the strip, a fuel hose and air hose for supplying fuel and air to the injection pipe, and an air mixed fuel which is installed at the tip of the injection pipe Flame section for firing flames on the welded area of the strip, including ignition rods and energizing rods for generating ignition sparks Strip surface oil removing device of the welder comprising a. The air pipe of claim 1, further comprising: an air pipe installed at a lower end of the support frame at a predetermined distance from the injection pipe and directed toward the strip, and an injection nozzle installed at the bottom of the air pipe to inject air to the surface of the strip; And an air spraying unit for supplying air to the pipe, the air spraying unit being capable of removing the residues burned and burned by the flame unit from the welding site. The apparatus of claim 2, wherein a blocking plate is installed between the injection pipe and the air pipe to block the flame. 4. The driving cylinder according to any one of claims 1 to 3, wherein the driving cylinder is vertically spaced apart from the air pipe and installed vertically on the support frame, and is installed on the front end of the piston rod of the driving cylinder and placed on the strip, and the lower end thereof is opened. Suction hood, which is installed in communication with one side of the suction hood to suck air, and is installed rotatably in the longitudinal direction of the strip within the suction hood so as to contact the surface of the strip, and the brush roll is installed on one side of the suction hood. Strip surface oil removal device of the welder, characterized in that it further comprises an operating motor for rotating.