KR20030039554A - Removal of fat device for zinc plate pipe - Google Patents

Abstract

PURPOSE: A degreasing device of zinc plated steel pipe is provided to improve quality of product by removing cooling water and alien substance remained on the surface of the zinc plated steel pipe during cooling process and prevent dew condensation and greening due to moisture by improving close adherence and pressing force of the resin coating layer when coating resin coating layer of the surface of the steel pipe. CONSTITUTION: The degreasing device of zinc plated steel pipe comprises a cylindrical body part(2) which is fixed by a support(3), at the upper part of which an injection nozzle(7) is installed by injection pipe(5) and elbow(6) connected to a storage tank, and at the lower part of which a drain hole(8) is formed; a fixed plate(10) on the inner circumferential surface of which a certain sized circular rack(11) is formed; first disk(12) to which rotation rods(14) and one end of supporting rods(15) are connected with the rotation rods(14) being spaced apart from the supporting rods(15) in an equal distance, pinions(13) are connected to the end part of the rotation rods(14); second disk(20) from the front center of which an inlet hole(21) penetrated rotation shaft(22) is projected, and to which the other end of the rotation rods(14) and supporting rods(15) is connected; roll brushes(30) inserted onto the rotation rods(14) connected to the first and second disks(12,20); a front cover(40) on the center of which a through hole(41) is formed, and which is fixed to a plurality of ribs(42) formed on the front end part of the inner circumferential surface of the body part(2) by bolts(43); a rear cover(50) at the center of which a through hole(51) is formed so that a fixed shaft(52) is connected to the through hole(51), and to which a housing(53) is connected by bolts(54); and a power part comprising a driven pulley connected to the rotation shaft(22), an electric powered pulley connected to rod of an electric powered motor, and a belt.

Description

Degreasing device of galvanized steel pipes {REMOVAL OF FAT DEVICE FOR ZINC PLATE PIPE}

The present invention relates to a degreasing apparatus for galvanized steel pipes, and more particularly, in manufacturing steel pipes using galvanized steel sheets, removing cooling water and foreign substances remaining on the surface of galvanized steel pipes during a cooling process (washing and In order to improve the quality of the product by degreasing, and to coat the rust preventive (resin coating layer) on the surface of the galvanized steel pipe, the galvanized steel pipe can be prevented from condensation and greening due to moisture by improving the adhesion and compression of the resin coating layer. The degreasing apparatus of the present invention.

In general, look at the process of manufacturing a galvanized steel pipe as follows.

First, the process of storing the raw materials (coil, skelp) by skid process.

Second, the process of releasing raw materials for easy processing by an uncoiler process.

Third, the process of cutting the raw material to the specified width.

Fourth, a process of rewinding the cut raw material into coils for transport and decoration on skids.

Fifth, the process of cutting and removing the leading end, the end or the defective part of the raw material.

Sixth, the process of connecting the main raw materials in order to proceed with the forging process after the cutting process, the welding connection (manufacturing galvanized steel pipe for vinyl house is an electrical resistance welding).

Seventh, the process of shaping the welded raw material into a circle using a prescribed shape roller.

Eighth, after the seam of the shaped tube is welded, the weld is uneven or removes the beads formed in the welded area.

Ninth, Zn METALIZING is a process of recoating zinc by spraying the damaged galvanized part when removing beads using hot-dip galvanized steel sheet.

Tenth, process to make the diameter of the tube uniform in the product after the bead is welded and the bead removal and the zinc spraying are completed.

Eleventh, cooling the galvanized steel pipe heated by the welding process with cooling water.

Twelfth, the process of treating the surface with rust preventive (resin coating) to prevent rust on the surface of the steel pipe to extend the life of the pipe and improve its quality.

Thirteenth, the process of cutting the anti-corrosive coated tube according to a predetermined length with an automatic pressure cut (press cuter).

Fourteenth, the process of cutting anticorrosive coated tubes with automatic saw blades along a defined length.

Fifteenth, straightening process when a tube cut to a certain length is bent.

Sixteenth, the process of cutting the crushed or sharpened part of the end of the pressure-cutting or saw blade cut pipe.

Seventeenth, the process of packing the water according to the specification of the product and the demand of the consumer.

The galvanized steel pipe is manufactured (crude tube) by the above process.

Since the apparatus used in each process is a well-known and widely used component, detailed description and drawing notation will be omitted.

On the other hand, in the production of galvanized steel pipes through the respective processes as described above, in order to prevent condensation and greening due to moisture, as shown in the accompanying drawings, as shown in Figure 1, the surface of the steel pipe 100 is a constant thickness The surface is treated with a resin coating layer 200 is formed.

However, in manufacturing the conventional galvanized steel pipe (joint pipe) as described above, since a cooling process is performed to cool the galvanized steel pipe heated during the welding process, the surface of the galvanized steel pipe during the resin coating process by the rust preventive surface treatment process is formed. Since resin coating is performed with cooling water and foreign matter remaining, the adhesion and adhesion of the resin coating layer are reduced, so that bubbles are generated between the surface of the steel pipe and the resin coating layer, so that the surface of the steel pipe comes into contact with the outside air. Due to the condensation, condensation and greening (corrosion due to moisture) occur, resulting in poor product quality and shortened service life, as well as a reduction in normal strength and durability.

In order to remove the coolant and foreign matter remaining on the surface of the galvanized steel pipe, it is currently removed using fiber, but the work is difficult and the smooth removal of the coolant and the foreign matter (washing and degreasing) has not been achieved. .

The present invention is to solve the problems occurring in the conventional galvanized steel pipe as described above, the purpose is to produce a galvanized steel pipe through each process (mentioned process) by using a galvanized steel sheet. In order to improve the adhesion and compressive force of the resin coating layer formed on the surface of the galvanized steel pipe to prevent condensation and greening due to moisture, the cooling water and foreign substances remaining on the surface of the galvanized steel pipe by the cooling process are rolled brushes and solvents. It is to provide a new type of degreasing apparatus for galvanized steel pipe which can be completely cleaned and removed by using.

In order to achieve the above object, the present invention in the manufacture (jointed pipe) of galvanized steel pipe by using a galvanized steel sheet, the degreasing device is fixed by the support and the upper side by the injection pipe and elbow connected to the storage tank The injection nozzle is internally installed, and a lower portion of the cylindrical body having a drainage hole, a fixed plate having a circular rack of a predetermined size formed on the inner circumferential surface thereof, and a first rotating plate having one end of the support rod and the support rod coupled to the pinion at equal intervals. And a second rotating plate having a rotating shaft through which an inlet hole penetrates the front center, and a second rotating plate coupled to the other end of the rotating rod and the supporting rod, a roll brush fitted to the rotating rod coupled to the first and second rotating plates, and a through hole formed at the center thereof. And a front cover fixed to the bowl by a plurality of ribs formed at the front end of the inner circumferential surface of the body portion, and a through-hole is formed in the center to fix the shaft. Combined and the housing has a rear cover, and a portion composed of a power transmission belt and a pulley coupled to the driven pulley and the load of the electric Motor coupled to the rotating shaft having the features are combined into bolt.

In the present invention as described above, the rotating rod coupled to the second rotating plate has a feature coupled to be eccentrically by the distance A by the position control plate.

1 is a perspective view showing the main portion of a general galvanized steel pipe,

Figure 2 is an exploded perspective view showing a degreasing apparatus of galvanized steel pipe according to the present invention,

3 is a longitudinal sectional view showing a degreasing apparatus for galvanized steel pipes according to the present invention;

4 is a front schematic view showing a degreasing apparatus for galvanized steel pipes according to the present invention;

5 is an enlarged view illustrating main parts of a degreasing apparatus for galvanized steel pipes according to the present invention.

<Explanation of symbols for the main parts of the drawings>

1: degreasing device 2: body part

3: support 4: storage tank

5: injector 6: elbow

7: Injection nozzle 8: Drainer

9: drain 10: fixed plate

11: Round rack 12: first rotating plate

13: Pinion 14: Rotating rod

15: support rod 16: bearing

20: 2nd rotating plate 21: inlet hole

22: rotating shaft 23: position control plate

30: roll brush 40: front cover

41, 51: Through 42: Live

50: rear cover 60: power unit

61: driven pulley 62: electric pulley

63: belt 64: rod

M1: Electric motor T: Collector

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

2 to 5, the body portion 2 of the degreasing apparatus 1 according to the present invention is fixed by the support 3 and the injection pipe 5 is connected to the storage tank 4 in the upper portion 5 The injection nozzle 7 is installed by the elbow 6) and the lower portion forms a cylindrical shape having a drainage hole 8 formed therein, and the fixed plate 10 has a circular rack 11 having a predetermined size formed on an inner circumferential surface thereof. Rotating plate 12 is formed at equal intervals, one end of the rotating rod 14 and the support rod 15 is coupled to the pinion 13 is coupled to the end, the second rotating plate 20 through the inlet hole 21 through the front center The rotating shaft 22 is protruded and the other end of the rotary rod 14 and the support rod 15 is coupled, the roll brush 30 is fitted to the rotary rod 14 is coupled to the first and second rotary plates 12, 20 Combined.

In addition, the front cover 40 of the degreasing device 1 is a hole (41) is formed in the center and fixed to the bolt 43 by a plurality of ribs (42) formed in the front end of the inner peripheral surface of the body portion (2) The rear cover 50 has a through hole 51 formed in the center thereof, and the fixed shaft 52 is coupled thereto, and the housing 53 is coupled to the bolt 54, and the power unit 60 is connected to the rotary shaft 22. It is composed of a driven pulley 61 and the electric pulley 62 and the belt 63 coupled to the electric motor (M1) to be coupled.

At this time, the rotating rod 14 coupled to the second rotating plate 20 is coupled to be eccentric by the distance A by the position control plate 23.

Figure 2 is an exploded perspective view showing a degreasing device of the galvanized steel pipe according to the present invention, Figure 3 is a longitudinal cross-sectional view showing a degreasing device of the galvanized steel pipe according to the present invention, the fixing plate ( 10 is coupled to the circular rack (11) formed on the inner circumferential surface is coupled to the pinion (13) coupled to the end of the rotating rod 14 is coupled to rotate along the circular rack (11), the rotating rod 14 is the first rotating plate It is supported and fixed by the 12 and the second rotating plate 20, the first rotating plate 12 is coupled to the fixed shaft 15 by the bearing 16 to be rotatable and the fixed shaft 15 is the rear cover It is fixed and coupled by the housing 53 fixed to 50. As shown in FIG.

In addition, both side ends of the supporting rods 15 are fixed to the first rotating plate 12 and the second rotating plate 20, and the power unit 60 is provided on the rotating shaft 22 protruding from the front center of the second rotating plate 20. The driven pulley 61 coupled to the electric pulley 62 coupled to the rod 64 of the electric motor M1 and the belt 63 is decelerated and rotated at a predetermined ratio, and the body portion 2 Galvanized steel pipe (P) is injected through the injection nozzle (7) installed in the upper portion of the) through the inlet hole 21 of the rotating shaft 22 protruding forward of the second rotating plate (20) A drain pipe 9 provided with a valve V communicates with and is coupled to the drain hole 8 formed at the bottom of the drain hole 8 so that the solvent injected and injected from the injection nozzle 7 can be recovered and recycled to the recovery container T. Will be supplied.

Figure 4 is a schematic front view showing the degreasing apparatus of the galvanized steel pipe according to the present invention, the rotating rod 15 and the support bar 14 are formed at equal intervals starting from the second rotating plate 20, each rotating rod 15 Pinion 13 coupled to the end is shown to be coupled in a state engaged with the circular rack 11 formed on the fixed plate 10, Figure 5 is an enlarged view of the main portion showing the degreasing device of the galvanized steel pipe according to the present invention As the rotation rod 14 and the support rod 15 coupled to the roll brush 30 at equal intervals to the second rotation plate 40, the rotation rod 14 is eccentric by the distance A by the positioning plate 23 It indicates what is combined as possible.

At this time, as the rotary bar 14 is coupled in an eccentric movement state by the distance A by the positioning plate 23, to the appropriate position according to the wear state of the roll brush 30 or the diameter size of the galvanized steel pipe (P). Can be adjusted.

Referring to the use state of the present invention as follows.

2 to 5, the injection nozzle 7 is installed by the injection pipe 5 and the elbow 6 fixedly installed by the support 3 and connected to the storage tank 4 above. A cylindrical body portion 2 having a drain hole 8 formed thereon, a fixed plate 10 having a circular rack 11 of a predetermined size formed on an inner circumferential surface thereof, and a rotating rod having a pinion 13 coupled to the end at equal intervals. 14 and the first rotating plate 12 having one end of the support bar 15 coupled thereto, and a rotating shaft 22 through which the inlet hole 21 penetrates in the front center thereof, protrudes from the rotation rod 14 and the support bar 15. The second rotary plate 20 coupled to the other end, the roll brush 30 is fitted to the rotary rod 14 coupled to the first and second rotary plates 12 and 20, and a through hole 41 is formed in the center. The front cover 40 is fixed to the bolt 43 by a plurality of ribs 42 formed at the front end of the inner circumferential surface of the body portion 2, and a through hole 51 is formed at the center thereof so that the fixed shaft 52 is formed. Combination And a rear cover 50, in which the housing 53 is coupled to the bolt 54, a driven pulley 61 coupled to the rotary shaft 22, and an electric pulley coupled to the rod 64 of the electric motor M1. Degreasing apparatus is provided with a power unit 60 consisting of a 62 and the belt 63, the rotary rod 14 coupled to the second rotating plate 20 is eccentric by a distance A by the positioning plate 23 In order to manufacture (manufacture) a zinc steel pipe (P) using (1), first, the degreasing apparatus 1 is a cooling process and a rust-preventing agent (resin coating) coating process (because it is a well-known technique mentioned above. (Not shown).

At this time, the manufactured galvanized steel pipe (P) is installed to pass through the fixed shaft 52 through the inlet hole 21 formed in the rotary shaft 22 of the second rotating plate 20 of the degreasing device (1). (See attached drawing Fig. 3)

In this way, when driving the electric motor M1 by operating the power control unit (not shown in the drawing) in the state where the degreasing device 1 is installed, the electric pulley 62 is rotated and the belt 63 As the driven pulley 61 is rotated, the rotating shaft 22 is rotated, and as the rotating shaft 22 is rotated, the second rotating plate 20 is rotated and the rotating rod 14 and the supporting rod 15 coupled thereto. Is interlocked and rotated.

Therefore, since the second rotating plate 20 is rotated, the first rotating plate 12 connected to the supporting rod 15 is interlocked and rotated, and the pinion 13 coupled to the end of the rotating rod 14 is fixed to the fixed plate 10. The circular rack 11 is to be circulated and rotated in engagement with it.

At this time, the first rotating plate 12 is rotated because it is connected to the fixed shaft 52 by the bearing 16, the roll brush 30 coupled to the rotating rod 14 is rotated by the pinion (13) As the first and second rotating plates 12 and 20 rotate, the galvanized steel pipes P penetrating to the center of the degreasing apparatus 1 are circulated and rotated while drawing a predetermined trajectory, thereby cleaning and degreasing.

In addition, as described above, in washing and degreasing the galvanized steel pipe (P), which is transported and supplied while the roll brush (30) is circulated and rotated, a predetermined amount through the injection nozzle (7) installed above the body (2) Solvent is injected and injected to increase the cleaning and degreasing efficiency, and after spraying and injecting, the solvent flowing down to the bottom surface of the body part 2 is discharged to the collecting container T along the drain pipe 9 by the drain hole 8. It is recovered and stored.

At this time, since the valve (V) is installed in the drain pipe (9), the drainage of the solvent can be blocked, and the inside of the body portion (2) into which the solvent is injected can be suppressed to maximize the evaporation of the solvent.

On the other hand, as described above, in cleaning and degreasing the surface of the galvanized steel pipe (P) conveyed and supplied by using the degreasing device (1), the roll brush 30 is worn, so that normal cleaning and degreasing may not be performed. In this case, when the position adjusting plate 23 coupled to the second rotating plate 20 so as to be eccentrically spaced A is adjusted to move (see FIG. 5), the rotating rod 14 coupled to the second rotating plate 20 As the center position is adjusted, the roll brush 30 is moved in position (distance corresponding to the worn portion of the roll brush 30), thereby performing normal washing and degreasing.

In this way, in manufacturing (jointing) the galvanized steel pipe P, the cooling water and foreign matter remaining on the surface by the cooling process (not shown in the drawing) can be completely washed and degreased by the degreasing device 1. It can be.

As described above, according to the degreasing apparatus of the galvanized steel pipe according to the present invention, in manufacturing the galvanized steel pipe (tubing), the cooling water and foreign substances remaining on the surface during the cooling process can be completely removed (washed and degreased). It can not only improve the quality of the product, but also improve the adhesion and compressive force of the coated resin coating layer during the rust-resist (resin coating) coating process, which can prevent condensation and greening due to poor coating. The service life of the product can be extended, resulting in an efficient and economical effect.

Claims (2)

In manufacturing galvanized steel pipe using galvanized steel sheet, The injection nozzle 7 is installed by the support pipe 5 and the elbow 6 fixedly installed by the support 3 and connected to the storage tank 4 above, and the drain hole 8 is formed below. A body portion 2; A fixed plate 10 having a circular rack 11 of a predetermined size formed on an inner circumferential surface thereof; A first rotating plate 12 having one end of the rotating rod 14 and the supporting rod 15 coupled to the pinion 13 at an end thereof at equal intervals; A second rotating plate 20 having a rotating shaft 22 through which the inlet hole 21 penetrates in the front center thereof, and the other end of the rotating rod 14 and the supporting rod 15 coupled thereto; A roll brush 30 fitted into the rotating rod 14 coupled to the first and second rotating plates 12 and 20; A front cover (40) formed at the center thereof and fixed to the bolt (43) by a plurality of ribs (42) formed at the front end of the inner circumferential surface of the body portion (2); A rear cover 50 in which a through hole 51 is formed in the center thereof, the fixed shaft 52 is coupled, and the housing 53 is coupled to the bolt 54; Power unit 60 is composed of a driven pulley 61 coupled to the rotating shaft 22 and the electric pulley 62 and the belt 63 coupled to the rod 64 of the electric motor M1. Degreasing device of galvanized steel pipe. The method of claim 1, The rotating rod 14 coupled to the second rotating plate 20 is degreased device of the galvanized steel pipe, characterized in that coupled to the eccentrically spaced by the position control plate (23).