KR200406129Y1 - An adhesion layer and resin layer the device which covers a Covering layer clothing steel pipe - Google Patents

Abstract

The present invention relates to a steel pipe coating apparatus for coating a coating layer having an improved adhesive layer and a resin layer to shorten the manufacturing process and to improve the efficiency of maintenance by coating the adhesive layer and the resin layer on the outer circumferential surface of the steel pipe simultaneously. 1) and a steel pipe coating device 100 for coating the outer circumferential surface of the steel tube 10 with the adhesive 21 and the resin 22 in a gel state supplied with pressing pressure from the resin extruder 2, respectively; The elongated first pipe guide member 120 having a through hole 121 through which the steel pipe 10 passes is fixedly installed in the body member 110, and is formed in a circular shape in the body member 110. The adhesive supply hole 130 and the resin supply hole 140 are formed to be connected to the adhesive injection path 131 and the resin injection path 141, respectively, and the adhesive supply hole 130 and the resin supply hole ( The coating layer in which the adhesive 21 and the resin 22 are the adhesive layer 21a and the resin layer 22a, respectively, so that the adhesive movement path 132 and the resin movement path 142 that are extended to each other meet each other (140). 20) to have a coating layer moving path 150 and a discharge port 151 to be moved in the horizontal direction; The outer cover 162 and the pressure washer 173 of the second pipe guide member 160 having the through hole 161 and the cover layer moving path 150 are fastened to the end of the first pipe guide member 120. A plurality of fasteners 174 is formed to be formed between the inner circumferential surface 172 of the discharge control member 170 is fixed to the body member 110 through the adjustment hole 171 and the discharge control member 170 is a body The adhesive layer and the resin layer are simultaneously coated on the surface of the steel pipe by coating the end of the control screw 180, which is fastened in the circumferential direction to the member 110, to be movable by pressing the outer circumferential surface of the discharge control member 170. Not only can be precisely controlled to be coated, there is an advantage that the second pipe guide member and the discharge control member can be replaced to coat steel pipes of different sizes.

Steel Pipe Coating Equipment, Steel Pipe Coating Equipment, Steel Pipe Coating System

Description

An adhesion layer and resin layer the device which covers a Covering layer clothing steel pipe}

1 is a schematic view of a steel pipe coating system in which the present invention is implemented;

2 is an overall cross-sectional view of the steel pipe coating apparatus of the present invention,

3 is an essential part separation cross-sectional view of one embodiment of the present device;

4 is a schematic view illustrating the operation of the device of the present invention,

5 is an enlarged view of a portion “A” of FIG. 4;

FIG. 6 is an enlarged cross-sectional view of portion “B” of FIG. 4;

7 is an enlarged cross-sectional view taken along line CC ′ of FIG. 2;

8 is a partial cross-sectional view illustrating a coating thickness control state of the present invention;

9 is a partially separated perspective view of another embodiment of the present invention device,

10 is an assembled longitudinal cross-sectional view of FIG. 9;

11 is a partially enlarged cross-sectional view of another embodiment of FIG. 10.

Explanation of symbols on the main parts of the drawings

100: steel pipe coating device 110: body member

120: first pipe guide member 130: adhesive supply hole

132: adhesive transfer path 140: resin supply hole

142: resin moving path 150: coating layer moving path

151: discharge port 160,160 ': second pipe guide member

162: outer peripheral surface 170,170 ': discharge control member

174: fastener 180: adjusting screw

The present invention relates to a steel pipe coating device for coating a resin on the outer circumferential surface of the steel pipe, and more specifically, to the coating by coating the coating layer having an adhesive layer and a resin layer in order to coat the resin by applying an adhesive to the outer circumferential surface of the steel pipe The present invention relates to a steel pipe coating apparatus for coating a coating layer having an improved adhesive layer and a resin layer to shorten time and process, and to reduce equipment cost and shorten raw material replacement time.

In general, steel pipes are coated with polyethylene resin on the outer circumference to prevent corrosion. Such steel pipes are called coated steel pipes.

In manufacturing coated steel pipe, the foreign material removal process to give heat to the steel pipe to remove foreign substances, the epoxy resin coating process to smooth the outer circumferential surface of the steel pipe, the adhesive coating process to apply the adhesive to the outer circumferential surface, and polyethylene resin A coated steel pipe is obtained by the resin coating process for coating.

Since each of the above manufacturing process is carried out by a separate device, a large amount of facility area and cost are consumed in order to equip a single steel pipe coating system, and therefore, studies are continuously conducted to shorten the manufacturing process.

The object of the present invention is to provide a steel pipe coating apparatus for coating a coating layer having an improved adhesive layer and a resin layer to shorten the manufacturing process and improve the efficiency of maintenance by coating the adhesive layer and the resin layer on the outer circumferential surface of the steel pipe at the same time. .

In order to achieve the above object, the present invention is a steel pipe coating device to be coated on the outer peripheral surface of the steel adhesive and the resin of the gel state supplied with a pressing force from the adhesive extruder and the resin extruder, respectively; An elongated first tube guide member having a through hole through which the steel pipe passes is fixedly installed in the body member, and an adhesive supply hole and a resin supply hole formed in a circular shape are respectively formed in the body member. It is connected to the resin injection passage, and the adhesive supply hole, the resin supply hole and the extended adhesive movement path and the resin movement path to meet each other, so that the adhesive layer and the resin is a coating layer consisting of an adhesive layer and a resin layer, respectively, and move horizontally. To have a coating layer moving path and a discharge port to be made; The discharge control member is fastened to the end of the first pipe guide member and the outer layer of the second pipe guide member having a through hole, and a plurality of fasteners fitted with pressure washers are fixed to the body member through the adjustment hole. Characterized in that formed between the inner circumferential surface of the.

The discharge control member is characterized in that the end of the control screw fastened in the circumferential direction to the body member is configured to move by pressing the outer peripheral surface of the discharge control member.

When the present invention is described in more detail based on the accompanying preferred embodiments as follows.

1 is a view showing a steel pipe coating system to which the present invention is carried out, the steel pipe coating device 100 of the present invention is made of an adhesive 21 and a resin 22 in a gel state from an adhesive extruder 1 and a resin extruder 2. ) Is supplied as a state having a pressing force, and the adhesive 21 in the gel state and the resin 22 in the steel pipe coating apparatus 100 are combined to form a coating layer 20 and coated on the outer circumferential surface of the steel pipe 10. It is covered with. Reference numeral 3 represents a roller for moving the steel pipe 10.

2 and 3, the steel pipe coating apparatus 100 is installed so that the long first pipe guide member 120 having a through hole 121 through which the steel pipe 10 passes through the body member 110. do.

In addition, the body member 110 is formed to be connected to the adhesive injection passage 131 and the resin injection passage 141 by forming an adhesive supply hole 130 and a resin supply hole 140 formed in a circular shape, respectively. do. In the drawing, the body member 110 is made of several pieces and is fixed with screws and bolts 111 because they are manufactured and assembled into various parts as necessary for design and manufacture, and thus, these are not explained individually. The whole will be described as the body member 110.

Therefore, the adhesive injection passage 131 and the resin injection passage 141 are formed inside the body member 110, and the supply pipes 1a and 2a of the adhesive extruder 1 and the resin extruder 2 are formed therein. Each of the adhesives 21 and the resin 22 are connected to each other so that the adhesive supply hole 130 and the resin supply hole 140 are circularly formed. Of course, since the adhesive 21 and the resin 22 are viscous and supplied in a gel state, they can be moved and supplied because they are in a flowable state.

The adhesive supply hole 130 and the resin supply hole 140 are also formed to extend the adhesive movement path 132 and the resin movement path 142 of the circular shape, respectively, the adhesive movement path 132 and From the point where the resin moving paths 142 meet each other, the coating layer moving path 150 is formed in a circular shape.

Therefore, the adhesive 21 and the resin 22 which are moved to the adhesive moving path 132 and the resin moving path 142 as shown in FIGS. 4 and 5 are outside the adhesive layer 21a in the coating layer moving path 150. The resin layer 22a is laminated in a state in which the coating layer 20 is combined to move in the horizontal direction and is discharged through the discharge holes 151 of the steel pipe 10 which is moved through the through holes 121 and 161. The coating layer 20 is coated on the outer circumferential surface.

At this time, the moving speed of the steel pipe 10 and the discharging speed of the coating layer 20 is controlled by the speed to be moved and discharged in a preset state, the adhesive layer 21a is on the outer peripheral surface of the steel pipe 10 as shown in FIG. It serves to bond the resin layer 22a.

And the present invention is a plurality of fasteners 174 is fastened to the second pipe guide member 160 having a through hole 161 at the end of the first pipe guide member 120 and the pressure washer 173 is fitted to the outside. The outer circumferential surface 162 of the second pipe guide member 160 and the inner circumferential surface of the discharge control member 170 are installed by installing the discharge control member 170 fixed to the body member 110 by passing through the adjustment hole 171. The coating layer moving path 150 is formed between the 172.

In addition, the discharge control member 170 as shown in Figure 7 and 8 so that the end of the adjustment screw 180 is fastened in the circumferential direction to the body member 110 to press the outer circumferential surface of the discharge control member 170 to be movable. Consists of.

The coating layer 20 coated on the outer circumferential surface of the steel pipe 10 should be coated with a uniform thickness, and in order to do this, the width of the coating layer moving path 150 should be maintained at a constant width.

In order to uniformly set the width of the coating layer movement path 150, the fastener 174 is first slightly loosened, and this state is not a state in which the fastening force of the fastener 174 is not completely released and some of the fastening force is discharged. Since the discharge control member 170 does not move freely because it is in a state of being acted on the control member 170, the discharge control member 170 is rotated by rotating the adjustment screw 180 to press the discharge control member 170. ) Is moved to uniformly adjust the interval (width) of the coating layer movement path 150.

As described above, the adjustment screw 170 is rotated so that the discharge control member 170 is moved to finely adjust a very small amount (interval). After the adjustment is completed, the fasteners 174 are completely fastened and discharged. The adjusting member 170 is fixed.

And the present invention can be replaced with another second pipe guide member 160 'and discharge control member 170' in order to ensure a good coating according to the diameter of the steel pipe 10 as shown in Figure 9 to 11 It is supposed to be.

Since the second pipe guide member 160 'and the discharge control member 170' are manufactured to suit the diameter of the steel pipes 10 and 10 ', the through-hole 161 and the outer circumferential surface in addition to those shown in the drawings. A plurality of second pipe guide members 160 ′ and a discharge control member 170 ′ having different sizes of 162 and the inner circumferential surface 172 may be manufactured and used.

When replacing in the state as shown in FIG. 2, after unwinding the second pipe guide member 160 from the first pipe guide member 120, and then releasing the fastener 174 to disassemble the discharge control member 170, FIGS. As described above, the second pipe guide member 160 'is fastened to the first pipe guide member 120 and replaced with another discharge control member 170', thereby allowing quick and easy replacement and having different diameter steel pipes ( 10 ') can be coated with the coating layer 20.

Therefore, the second pipe guide members 160 and 160 'and the discharge control members 170 and 170' may be replaced by one steel pipe coating device 100 to coat the steel pipes 10 and 10 'of various diameters with the coating layer 20. It is not only efficient, but also easy to replace.

Therefore, in the steel pipe coating system, the replacement work for converting steel pipes of different diameters was previously ineffective for more than one day, but according to the present invention, the steel pipe coating system can be converted to steel pipes of different sizes in about 1-2 hours. .

According to the above description, the present invention is useful to provide the effect that the adhesive layer and the resin layer is coated on the outer circumferential surface of the steel pipe at the same time to shorten the manufacturing process and the efficiency of manual replacement and maintenance of steel pipes of different sizes.

Claims (2)

As the steel pipe coating device 100 to be coated on the outer peripheral surface of the steel tube 10, the adhesive 21 and the resin 22 of the gel state supplied with the pressing force from the adhesive extruder 1 and the resin extruder 2, respectively; The long first pipe guide member 120 having a through hole 121 through which the steel pipe 10 passes is fixedly installed in the body member 110. Inside the body member 110 to form an adhesive supply hole 130 and a resin supply hole 140 formed in a circular shape, respectively, so as to be connected to the adhesive input passage 131 and the resin input passage 141, The adhesive supply hole 130, the resin supply hole 140, the extended adhesive movement path 132, and the resin movement path 142 meet each other so that the adhesive 21 and the resin 22 are each bonded to each other. A cover layer moving path 150 and a discharge port 151, which become a cover layer 20 formed of a 21a and a resin layer 22a and move in a horizontal direction; The outer cover 162 and the pressure washer 173 of the second pipe guide member 160 having the through hole 161 and the cover layer moving path 150 are fastened to the end of the first pipe guide member 120. A plurality of fasteners 174 is formed between the inner circumferential surface 172 of the discharge control member 170 is fixed to the body member 110 by passing through the adjustment hole 171 having an adhesive layer and a resin layer Steel pipe sheathing device for coating the coating layer. The method of claim 1, wherein the discharge control member 170 is configured to be movable by pressing the outer peripheral surface of the discharge control member 170, the end of the adjustment screw 180 is fastened to the body member 110 in the circumferential direction. A steel pipe coating apparatus for coating a coating layer having an adhesive layer and a resin layer.

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