KR102466893B1 - method for manufacturing coated metal pipe - Google Patents

Abstract

A method for manufacturing a coated metal pipe according to an embodiment of the present invention includes a pipe loading step of supplying a metal pipe from a pipe loader; a withdrawal step of pressing and transferring the metal pipe transported from the pipe loader in an extractor; a heating coating step of heating the metal pipe transported from the drawing machine with a heat coater and applying an adhesive liquid to the surface of the metal pipe; and a coating step of coating the surface of the metal pipe transferred from the heat coater with a polymer resin in a coater. includes

Description

Method for manufacturing coated metal pipe {method for manufacturing coated metal pipe}

The present invention relates to a method for manufacturing a coated metal pipe, and relates to a method for manufacturing a coated metal pipe capable of improving the production rate by automatically and rapidly supplying the metal pipe when the surface of the metal pipe is coated with a polymer resin.

Metal pipes are widely used in buildings, structures, and industrial facilities. In particular, metal pipes are cut on stairs or handrails and used as handrails. Since metal pipes come in contact with water or air, rust can easily occur.

In order to prevent such rust, conventionally, various polymer resins or powder coatings are applied to the surface of the metal pipe to form a coating layer. 1 is a cross-sectional view of a typical coated metal pipe, including a metal pipe (P) and a coating layer (C) formed on the surface of the metal pipe (P).

This coated metal pipe (P) can impart color and texture to the coating layer (C), so it is also used to improve the aesthetics of buildings, and it is possible to prevent corrosion or rust due to the coating layer (C).

However, the coated metal pipe (P) is coated with powder paint or polymer resin on the surface of the metal, and the productivity varies significantly depending on the coating manufacturing device, and also affects the coating quality, resulting in the durability of the coating layer (C), pin hole (pin hole) ) Defect due to occurrence, peeling of the coating layer (C) may occur.

Therefore, it is necessary to develop a method for manufacturing a coated metal pipe capable of rapidly supplying the metal pipe to improve the production rate while ensuring good quality of the coating layer.

The problem to be solved by the present invention is to provide a method for manufacturing a coated metal pipe capable of improving the production rate by automatically and quickly supplying the metal pipe when the surface of the metal pipe is coated with a polymer resin.

The tasks of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art from the following description.

Coated metal pipe manufacturing method according to an embodiment of the present invention for solving the above problems is a pipe loading step of supplying a metal pipe from a pipe loader; a withdrawal step of pressing and transferring the metal pipe transported from the pipe loader in an extractor; a heating coating step of heating the metal pipe transported from the drawing machine with a heat coater and applying an adhesive liquid to the surface of the metal pipe; and a coating step of coating the surface of the metal pipe transferred from the heat coater with a polymer resin in a coater. includes

In addition, the pipe loading step may include a loading step of loading the metal pipe on an inclined panel; a first sliding step of sliding the metal pipe to an end of the first inclined portion along the first inclined portion of the inclined panel; a first lifting module operating step in which a first lifting module provided at an end of the first inclined portion raises the metal pipe to a second inclined portion; a second sliding step of sliding the metal pipe to an end of the second inclined portion along the second inclined portion after the metal pipe is disposed on the second inclined portion; a second lifting module operating step in which the second lifting module provided on the inclined panel lifts the metal pipe to a third inclined portion; a third sliding step of sliding the metal pipe to an end of the third inclined portion along the third inclined portion after the metal pipe is disposed on the third inclined portion; a stopper module arranging step in which the metal pipe is disposed on the stopper module provided on the inclined panel; a loading step in which a loading module transfers the metal pipe disposed in the stopper module to a transfer module; and a transfer step in which the transfer module transfers the metal pipe to the withdrawor. can include

In addition, the loading step may include a towing step of towing the loading bracket by operating the loading driver; A bracket lifting step of rotating the loading bracket in an upward direction to raise the loading plate; a plate lifting step in which the loading plate is raised to receive the metal pipe disposed in the stopper module; and a transfer step of transferring the metal pipe to the transfer module by lowering the loading plate. can include

In the withdrawing step, the surface of the metal pipe transferred by the withdrawor may be cleaned.

In the withdrawing step, the withdrawer may grind and flatten the surface of the metal pipe.

Details of other embodiments are included in the detailed description and drawings.

According to the method for manufacturing a coated metal pipe according to an embodiment of the present invention, when the surface of the metal pipe is coated with a polymer resin, the metal pipe can be automatically and quickly supplied to improve the production speed.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a cross-sectional view of a typical coated metal pipe.
Figure 2 is a schematic diagram of a coated metal pipe manufacturing apparatus according to an embodiment of the present invention.
3 is a flow chart of a method for manufacturing a coated metal pipe according to an embodiment of the present invention.
5 is a partially enlarged view of the pipe loader 10.
Figure 6 is a side view of Figure 5;
7 is a perspective view of the loading module 16 and the transport module 17 according to an embodiment of the present invention.
8 is a flow chart of a pipe loading step (S10) according to an embodiment of the present invention.
9 is a view showing that the metal pipe P according to an embodiment of the present invention slides along the first inclined portion 121 and is positioned at the end portion 121a of the first inclined portion 121 .
10 is an operation diagram of the first lifting module 13 according to an embodiment of the present invention.
11 is an operation diagram of the second lifting module 14 according to an embodiment of the present invention.
12 is a view showing that the metal pipe (P) is disposed in the stopper module (15).
13 to 14 are side operational views of the loading module 16 according to one embodiment of the present invention.
15 is a front operation view in which the loading plate 164 is lowered.

In describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted. Even if the terms are the same, if the marked parts are different, it is said in advance that the reference numerals do not match.

In addition, terms to be described later are terms set in consideration of functions in the present invention, and since they may vary according to the intention or custom of operators such as experimenters and measurers, the definitions should be made based on the contents throughout this specification.

In this specification, terms such as first and second may be used to describe various components, but the components should not be limited by the terms. These terms are only used for the purpose of distinguishing one component from another. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element, without departing from the scope of the present invention. The terms and/or include any combination of a plurality of related recited items or any of a plurality of related recited items.

Terms used in this specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in this application, they should not be interpreted in an ideal or excessively formal meaning. don't

In addition, when a part "includes" a certain component, it means that it may further include other components without excluding other components unless otherwise stated.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail. Like reference numerals in each drawing indicate like members.

Hereinafter, referring to FIG. 2, an apparatus for manufacturing a coated metal pipe according to the present invention will be described.

Figure 2 is a schematic diagram of a coated metal pipe manufacturing apparatus according to an embodiment of the present invention.

Referring to Figure 2, the coated metal pipe manufacturing apparatus according to an embodiment of the present invention is a pipe loader 10 for supplying a metal pipe (P), the metal pipe (P) transferred from the pipe loader (10) A drawing machine 20 that pressurizes and transfers, a heating applicator 30 that heats the metal pipe P transferred from the drawing machine 20 and applies an adhesive liquid to the surface of the metal pipe P, and and a coater 40 for coating the surface of the metal pipe P transferred from the heat coater 30 with a polymer resin.

A metal pipe (P) is loaded in the pipe loader (10). A plurality of metal pipes P may be loaded in the pipe loader 10 .

The pipe loader 10 automatically supplies the metal pipe P to the withdrawer 20 as will be described later. The pipe loader 10 sequentially and quickly supplies each pipe to the draw-out machine 20, so that the production speed can be improved. The detailed structure of the pipe loader 10 will be described later.

The withdrawal machine 20 receives the transfer of the metal pipe P from the pipe loader 10. In this case, as will be described later, the withdrawal machine 20 can receive the metal pipe P from the transfer module 17 of the pipe loader 10.

The extractor 20 pressurizes the transported metal pipe P and transfers it to a heating applicator 30 to be described later. The withdrawer 20 may transfer the metal pipe P while pressing the upper and lower surfaces of the metal pipe P.

At this time, the withdrawer 20 may clean the surface of the transferred metal pipe P. The extractor 20 may clean the surface of the metal pipe P so that a polymer resin described below may be smoothly coated on the surface of the metal pipe P to remove foreign substances present on the surface.

Also, according to the embodiment, the extractor 20 may flatten the surface of the metal pipe P by polishing the surface of the metal pipe P. Then, the withdrawer 20 transfers the metal pipe P to the coater 40.

The heating applicator 30 heats the metal pipe P transported from the withdrawer 20 . The heat applicator 30 may increase the temperature of the metal pipe P by heating the outer surface of the metal pipe P. In this case, the metal pipe (P) may be heated to 150 ℃ ~ 200 ℃.

The heating applicator 30 applies the adhesive liquid to the outer surface of the metal pipe P. The adhesive solution functions to bind the metal material surface of the metal pipe (P) and the polymer resin. The adhesive solution firmly adheres the polymer resin coated on the metal pipe (P) to the metal pipe (P).

The coater 40 coats the surface of the metal pipe (P). The coater 40 coats the surface of the metal pipe P transferred from the heat coater 30 . The coater 40 melts the polymer resin and applies it to the surface of the metal pipe P. Since the coating machine 40 on the surface of the metal pipe P may be performed by a known technique, a detailed description thereof will be omitted.

The coater 40 may coat the polymer resin on the surface of the metal pipe (P). In this case, the polymer resin to be coated may be made of at least one of ABS (Acrylonitrile Butadiene Styrene), PVC (Polyvinyl Chloride), and PP (polypropylene), but the embodiment is not limited thereto.

The surface of the metal pipe P coated in the coater 40 is dried. In this case, the surface of the metal pipe P may be dried in a separate dryer. Also, according to the embodiment, the surface of the metal pipe P may be naturally dried.

The metal pipe (P) whose surface has been completely dried may be cut by a cutter. In this case, it can be cut into a size desired by the user. Accordingly, a metal pipe P having a coated surface may be manufactured.

The control unit 50 may be electrically connected to the pipe loader 10, the pull-out unit 20, the heat coater 30 and the coater 40. The control unit 50 may control the pipe loading machine 10, the drawing machine 20, the heat coating machine 30, and the coating machine 40.

According to one embodiment of the present invention, when the surface of the metal pipe (P) is coated with PVC, the ability to absorb external impact is improved, the occurrence of scratches is reduced, and durability and chemical resistance can be secured.

In addition, since the surface of the metal pipe (P) is heated in the heating applicator 30 and then the adhesive solution is applied, the adhesiveness of the adhesive solution is improved, so that the metal pipe (P) and the PVC coating layer (C) are stably bonded. As a result, the peeling problem of the coating layer (C) is reduced, and the occurrence of pin holes on the surface can be significantly reduced.

Hereinafter, referring to FIG. 3, a method for manufacturing a coated metal pipe according to an embodiment of the present invention will be described.

3 is a flow chart of a method for manufacturing a coated metal pipe according to an embodiment of the present invention.

Referring to FIG. 3, the method for manufacturing a coated metal pipe according to an embodiment of the present invention includes a pipe loading step (S10) of supplying a metal pipe (P) from a pipe loader (10), in the pipe loader (10) A drawing step (S20) of pressing and transferring the transferred metal pipe (P) in the drawing machine (20), heating the metal pipe (P) transferred from the drawing machine (20) in a heating coater (30), and A heating coating step (S30) of applying an adhesive liquid to the surface of the pipe (P), and a coating of coating the surface of the metal pipe (P) transferred from the heating coating machine (30) with a polymer resin in the coating machine (40). Step (S40) is included.

In the pipe loading step (S10), the pipe loader 10 supplies the metal pipe (P). In this case, the pipe loader 10 may automatically supply the metal pipe P to the withdrawal machine 20 . The pipe loader 10 may sequentially supply each pipe to the withdrawer 20 . This will be described later.

In the drawing step (S20), the drawing machine 20 receives the metal pipe P from the pipe loading machine 10. In this case, the metal pipe P may be transferred from the transfer module 17 of the pipe loader 10 to the withdrawer 20 as will be described later.

In the drawing step (S20), the drawing machine 20 pressurizes and transfers the metal pipe P transferred from the pipe loader 10. The extractor 20 pressurizes the transported metal pipe P and transfers it to a heating applicator 30 to be described later. The withdrawer 20 may transfer the metal pipe P while pressing the upper and lower surfaces of the metal pipe P.

In the drawing step (S20), the drawing machine 20 may clean the surface of the transferred metal pipe (P). The withdrawer 20 may clean the surface of the metal pipe P to remove foreign substances present on the surface. Also, according to the embodiment, the extractor 20 may flatten the surface of the metal pipe P by polishing the surface of the metal pipe P. Then, the withdrawer 20 transfers the metal pipe P to the coater 40.

In the heating application step (S30), the metal pipe (P) transferred from the withdrawal machine (20) is heated. In the heat application step (S30), the heat spreader 30 may increase the temperature of the metal pipe (P) by heating the outer surface of the metal pipe (P). In this case, the metal pipe (P) may be heated to 150 ℃ ~ 200 ℃.

In the heat application step (S30), the heat application machine 30 applies the adhesive liquid to the outer surface of the metal pipe (P). The adhesive solution firmly adheres the polymer resin coated on the metal pipe (P) to the metal pipe (P).

In the coating step (S40), the surface of the metal pipe (P) transferred from the heating coater (30) is coated. In this case, the coater 40 may coat the polymer resin on the surface of the metal pipe (P).

Then, the surface of the metal pipe (P) coated in the coating step (S40) is dried. In this case, the surface of the metal pipe P may be dried in a separate dryer. Also, according to the embodiment, the surface of the metal pipe P may be naturally dried.

The metal pipe (P) whose surface has been completely dried is cut by a cutter. In this case, it can be cut into a size desired by the user. Accordingly, a metal pipe P having a coated surface may be manufactured.

Hereinafter, a pipe loader 10 according to an embodiment of the present invention will be described with reference to FIGS. 4 to 7 .

Figure 4 is a perspective view of a pipe loader 10 according to an embodiment of the present invention, Figure 5 is a partially enlarged view of the pipe loader 10, Figure 6 is a side view of Figure 5, Figure 7 is the present invention A perspective view of the loading module 16 and the transport module 17 according to an embodiment of.

4 to 7, in one embodiment of the present invention, another pipe loader 10 is provided on the frame 11 forming the exterior, the frame 11, the metal pipe (P) is loaded, , The inclined panel 12 on which the first inclined portion 121, the second inclined portion 122, and the third inclined portion 123 are formed and the inclined panel 12 is provided with the metal pipe P sliding thereon. and is disposed at the end portion 121a of the first inclined portion 121, and the metal pipe P disposed at the end portion 121a of the first inclined portion 121 is connected to the second inclined portion 122. The first lifting module 13, which is provided on the inclined panel 12 and is disposed at the end 122a of the second inclined part 122, is provided on the end part 122a of the second inclined part 122. ), a second lifting module 14 for raising the metal pipe P disposed on the third inclined portion 123, provided on the inclined panel 12, and an end portion of the third inclined portion 123 (123a), a stopper module 15 in which the metal pipe P is disposed, and a transfer module provided in the frame 11 and disposing the metal pipe P disposed in the stopper module 15 It includes a loading module 16 that transfers to (17).

The frame 11 forms the exterior. Components described later may be combined with the frame 11 . A transfer module 17 may be provided in the frame 11 . The transfer module 17 will be described later.

The inclined panel 12 is provided on the frame 11 . A plurality of inclined panels 12 may be provided on the frame 11 along the frame 11 . When a plurality of inclined panels 12 are provided, the metal pipe P may be loaded into a loading space formed by the plurality of inclined panels 12 . Hereinafter, one inclined panel 12 will be described, but it can be applied to all inclined panels 12 provided in the frame 11.

A metal pipe (P) is loaded on the inclined panel (12). A plurality of metal pipes P may be loaded on the inclined panel 12 . At this time, each metal pipe (P) may be disposed perpendicular to the inclined panel (12).

A first inclined portion 121 , a second inclined portion 122 , and a third inclined portion 123 are formed on the inclined panel 12 . The first inclined portion 121 , the second inclined portion 122 , and the third inclined portion 123 are formed on the surface of the inclined panel 12 . The first inclined portion 121, the second inclined portion 122, and the third inclined portion 123 are inclined with respect to the ground. At this time, the metal pipe P disposed on the inclined panel 12 slides along the first inclined portion 121 , the second inclined portion 122 , and the third inclined portion 123 .

When a plurality of metal pipes P are disposed on each inclined portion, each metal pipe P is continuously slid to the end of each inclined portion. In this case, the metal pipe P disposed on the first inclined portion 121 may slide to the end portion 121a of the first inclined portion 121 . In addition, the metal pipe P disposed on the second inclined portion 122 may slide to the end portion 122a of the second inclined portion 122 . In addition, the metal pipe P disposed on the third inclined portion 123 may slide to the end portion 123a of the third inclined portion 123 .

Accordingly, the plurality of metal pipes P arranged on the first inclined portion 121 are continuously slid to the end portion 121a of the first inclined portion 121, and as will be described later, the third inclined portion is continuously slid. (123).

The first lifting module 13 is provided on the inclined panel 12 . The first lifting module 13 may be coupled to the side of the inclined panel 12 . When a plurality of inclined panels 12 are provided along the frame 11, the first lifting module 13 may be provided on each inclined panel 12.

The first lifting module 13 is disposed at the end 121a of the first inclined portion 121 . In this case, the metal pipe (P) sliding on the first inclined portion 121 is located on the first lifting module (13). At this time, the metal pipe (P) may be disposed on the upper surface of the first lifting module (13).

The first lifting module 13 raises the metal pipe P to the second inclined portion 122 . At this time, the first lifting module 13 raises the metal pipe P disposed at the end 121a of the first inclined portion 121 and moves it to the second inclined portion 122 . In this case, the metal pipe P may slide to the end portion 122a of the second inclined portion 122 after being disposed on the second inclined portion 122 .

Here, the first lifting module 13 according to an embodiment of the present invention is disposed on the end 121a of the first inclined portion 121 and is coupled to the side surface of the inclined panel 12. The rack body ( 131), a rack frame 132 having a rack formed on one surface and slidably provided to the rack body 131 in a direction perpendicular to the ground, provided at an end of the rack frame 132, the metal pipe (P ) to the second inclined portion 122, a rack head 133 coupled to the rack body 131, in contact with the rack, and a pinion that raises or lowers the rack frame 132 during rotation ( 134), a pinion rod 135 coupled to the pinion 134 and rotating the pinion 134, and provided to the frame 11 and coupled to the pinion rod 135, the pinion rod ( and a pinion driving unit 136 that rotates 135.

The rack body 131 forms the exterior. The rack body 131 is disposed at the end 121a of the first inclined portion 121 . The rack body 131 may be coupled to the side of the inclined panel 12 .

The rack frame 132 is provided on the rack body 131. A rack is formed on one side of the rack frame 132 . The rack may be formed in a concavo-convex shape on one surface of the rack frame 132.

The rack frame 132 slides on the rack body 131 in a direction perpendicular to the ground. In this case, the rack frame 132 may be raised or lowered with respect to the ground.

The rack head 133 is provided at an end of the rack frame 132 . The rack head 133 may be disposed at the end portion 121a of the first inclined portion 121 . The rack head 133 may ascend or descend based on the end portion 121a of the first inclined portion 121 . When the rack head 133 is completely lowered from the end 121a of the first inclined portion 121, the metal pipe P may be disposed on the upper surface of the rack head 133.

When the rack frame 132 rises, the rack head 133 rises. When the metal pipe P is disposed on the upper surface of the rack head 133, when the rack head 133 rises, the rack head 133 raises the metal pipe P. In this case, when the rack head 133 is completely raised from the end 121a of the first inclined portion 121, the rack head 133 may raise the metal pipe P to the second inclined portion 122. have.

The rack head 133 may have an inclined surface. When the metal pipe P is elevated to the second inclined portion 122 , the metal pipe P may slide along the inclined surface of the rack head 133 .

The pinion 134 is coupled to the rack body 131. The pinion 134 is in contact with the rack. In this case, the pinion 134 is implemented as a gear, and may be gear-coupled to the irregularities of the rack. Accordingly, the pinion 134 can raise or lower the rack frame 132 during rotation.

The pinion rod 135 is coupled to the pinion 134. The pinion rod 135 may pass through the pinion 134 and be coupled thereto. As described above, when a plurality of inclined panels 12 are provided along the frame 11, the pinion rod 135 drives the pinion 134 of the first lifting module 13 provided on each inclined panel 12. It can be combined by penetrating integrally.

The pinion driving unit 136 is provided on the frame 11 . The pinion drive unit 136 is coupled to the pinion rod 135. The pinion driving unit 136 may be operated according to a control signal from the control unit 50 . The pinion driving unit 136 rotates the pinion rod 135. In this case, the pinion rod 135 can be rotated.

The second lifting module 14 is provided on the inclined panel 12 . The second rising module 14 may be coupled to the side of the inclined panel 12 . When a plurality of inclined panels 12 are provided along the frame 11, the second lifting module 14 may be provided on each inclined panel 12.

The second lifting module 14 is disposed at the end 122a of the second inclined portion 122 . In this case, the metal pipe (P) sliding on the second inclined portion 122 is located on the second lifting module (14). At this time, the metal pipe (P) may be disposed on the upper surface of the second lifting module (14).

The second lifting module 14 raises the metal pipe P to the third inclined portion 123 . At this time, the second lifting module 14 raises the metal pipe P disposed at the end 122a of the second inclined portion 122 and moves it to the third inclined portion 123 . In this case, the metal pipe P may slide to the end portion 123a of the third inclined portion 123 after being disposed on the third inclined portion 123 .

Here, the second rising module 14 according to an embodiment of the present invention is disposed on the end 122a of the second inclined portion 122 and coupled to the side surface of the inclined panel 12. The cylinder module ( 141), provided in the cylinder module 141, raised and lowered in a direction perpendicular to the ground by the cylinder module 141, the metal pipe P to the third inclined portion 123 A lifting head 142 that raises, and is disposed at the end 122a of the second inclined portion 122 and is provided on a side surface of the lifting head 142 to raise and lower the lifting head 142. A head guide 143 supporting the head 142 is included.

The cylinder module 141 is disposed at the end 122a of the second inclined portion 122 . The cylinder module 141 may be coupled to the side of the inclined panel 12 . The cylinder module 141 may be operated according to a control signal from the controller 50. When the cylinder module 141 is operated, the lifting head 142 to be described below may be raised or lowered.

The lifting head 142 is provided on the cylinder module 141. When the cylinder module 141 is operated, the lifting head 142 may be raised and lowered in a direction perpendicular to the ground by the cylinder module 141 . When the rising head 142 is completely lowered from the end 122a of the second inclined portion 122, the metal pipe P may be disposed on the upper surface of the rising head 142.

When the cylinder module 141 is operated, the lifting head 142 rises. When the metal pipe (P) is disposed on the upper surface of the lifting head 142, when the lifting head 142 is raised, the lifting head 142 raises the metal pipe (P). In this case, when the lifting head 142 is completely raised from the end 122a of the second inclined portion 122, the lifting head 142 may raise the metal pipe P to the third inclined portion 123. have.

The head guide 143 is disposed at the end 122a of the second inclined portion 122 . Head guide 143 may be provided on the side of the lifting head (142). The head guide 143 may be coupled to the side of the inclined panel 12 . In this case, the head guide 143 may be fixedly coupled to the side of the inclined panel 12 . The head guide 143 supports the lifting head 142 so that the lifting head 142 rises and falls in a certain direction when the lifting head 142 rises and falls.

The stopper module 15 is provided on the inclined panel 12 . The stopper module 15 may be coupled to the side of the inclined panel 12 . When a plurality of inclined panels 12 are provided along the frame 11, the stopper module 15 may be provided on each inclined panel 12.

The stopper module 15 is disposed at the end 123a of the third inclined portion 123 . In this case, the metal pipe (P) sliding on the third inclined portion 123 is located on the stopper module (15). At this time, the metal pipe (P) is disposed on the stopper module 15, so that it does not escape to the outside of the inclined panel (12).

Here, the stopper module 15 according to an embodiment of the present invention is disposed at the end 123a of the third inclined portion 123, is slidably coupled to the side surface of the inclined panel 12, and the A slider 151 on which the metal pipe P is disposed, and a stopper rod 152 provided on an upper surface of the slider 151 to prevent the metal pipe P from being separated from the slider 151 do.

The slider 151 forms an appearance. The slider 151 is disposed at the end 123a of the third inclined portion 123. The slider 151 may be coupled to the side of the inclined panel 12 . The slider 151 is slidably coupled to the inclined panel 12 . The slider 151 may slide along the third inclined portion 123 in parallel.

A metal pipe P is disposed on the slider 151 . The metal pipe P raised to the third inclined portion 123 by the second lifting module 14 is disposed on the slider 151 . In this case, the metal pipe P may be disposed on the upper surface of the slider 151.

The stopper rod 152 is provided on the upper surface of the slider 151. The stopper rod 152 is provided to protrude from the upper surface of the slider 151 . The stopper rod 152 prevents the metal pipe P disposed on the upper surface of the slider 151 from being separated from the slider 151 .

The loading module 16 is provided on the frame 11 . A plurality of loading modules 16 may be provided in the frame 11 along the frame 11 .

The loading module 16 transfers the metal pipe P disposed on the stopper module 15 to the transfer module 17 . In this case, the loading module 16 may transfer the metal pipe P disposed on the stopper module 15 to the loading module 16 and then to the transfer module 17 . At this time, the loading module 16 may receive the metal pipe P disposed on the upper surface of the slider 151 to the loading module 16 .

Here, the loading module 16 according to an embodiment of the present invention passes through the loading frame 161 provided in the frame 11, the loading frame 161, and is rotated with respect to the loading frame 161 Loading rod 162, one side is coupled to the loading driving unit 165, the other side is coupled to the end of the loading rod 162, the loading driving unit 165 tows the loading bracket 163 A loading bracket 163 that rotates at the same time, and a loading that is coupled to the loading bracket 163 and is raised when the loading bracket 163 rotates to receive the metal pipe P disposed on the stopper module 15 plate 164.

The loading frame 161 is provided on the frame 11 . The loading frame 161 may be provided perpendicularly to the frame 11 .

The loading rod 162 is coupled to the loading frame 161. The loading rod 162 passes through the loading frame 161 . The loading rod 162 is rotated relative to the loading frame 161 . As will be described later, when the loading bracket 163 is rotated, the loading rod 162 is rotated with respect to the loading frame 161 together with the loading bracket 163.

One side of the loading bracket 163 is coupled to the loading driver 165. The loading bracket 163 may be rotatably coupled to the loading driving unit 165 . At this time, the loading bracket 163 may be coupled with the loading bracket 163 by bolts or rivets.

The other side of the loading bracket 163 is coupled to the end of the loading rod 162. As will be described later, when the loading bracket 163 rotates, the loading bracket 163 is rotated with the loading rod 162 as a rotation axis.

The loading bracket 163 may be rotated when the loading driver 165 tows the loading bracket 163 . That is, when the loading driver 165 pulls (tugs) the loading bracket 163, the loading bracket 163 is rotated with the loading rod 162 as a rotation axis. In this case, the loading bracket 163 may be rotated in an upward direction relative to the ground.

The loading bracket 163 may descend and return to its initial state. That is, when the loading driver 165 pushes the loading bracket 163 down, the loading bracket 163 may be returned to its original position.

Here, the loading drive unit 165 according to an embodiment of the present invention has a loading cylinder 1651 provided in the frame 11 and one side coupled to the loading bracket 163, and an end portion of the loading cylinder ( and a loading bar 1652 coupled to 1651.

The loading cylinder 1651 is provided on the frame 11. The loading cylinder 1651 may tow the loading bar 1652 according to a control signal from the control unit 50 .

One side of the loading bar 1652 is coupled to the loading bracket 163. The loading bar 1652 is rotatably coupled to the loading bracket 163.

The loading bar 1652 has an end coupled to the loading cylinder 1651. At this time, the loading cylinder 1651 may tow the loading bar 1652. In this case, the loading bar 1652 tows the loading bracket 163 so that the loading bracket 163 can be rotated with the loading rod 162 as a rotation axis. Also, the loading cylinder 1651 may push the loading bar 1652 to return the loading bar 1652 to its original position.

The loading plate 164 is coupled to the loading bracket 163. The loading plate 164 may be raised when the loading bracket 163 rotates. That is, when the loading bracket 163 is rotated in an ascending direction, the loading plate 164 may be rotated in an ascending direction and thus ascended.

In this case, the loading plate 164 may receive the metal pipe P disposed on the stopper module 15 . That is, when the loading plate 164 is raised, the end of the loading plate 164 comes into contact with the lower surface of the metal pipe P disposed on the stopper module 15, thereby removing the metal pipe P from the stopper module 15. After being released, it is transferred to the loading plate 164.

At this time, the end of the loading plate 164 is raised higher than the stopper rod 152 . That is, when the loading plate 164 receives the metal pipe P, the end of the loading plate 164 must be raised higher than the stopper rod 152 to separate the metal pipe P from the stopper rod 152. Since it can be received, the end of the loading plate 164 is raised higher than the stopper rod 152.

The loading plate 164 may descend. That is, when the loading drive unit 165 operates to return the loading bracket 163 to its original position, the loading plate 164 can be rotated together with the loading bracket 163 to descend. In this case, the loading plate 164 may be returned horizontally to the ground.

When the loading plate 164 is returned to its original position horizontally on the ground in a state in which the metal pipe P is transferred to the loading plate 164, the metal pipe P is transferred to the transfer module 17.

Here, the surface of the loading plate 164 according to an embodiment of the present invention may be bent toward the stopper module 15 . In this case, the surface of the loading plate 164 may be formed on an inclined surface to form a fourth inclined portion 164a.

At this time, an end of the fourth inclined portion 164a may be formed to be recessed to form a seating portion 164b. In this case, the metal pipe P received from the stopper module 15 may slide along the fourth inclined portion 164a and be seated on the seating portion 164b.

The transfer module 17 receives the metal pipe P from the loading module 16 . The transfer module 17 transfers the metal pipe P received from the loading module 16 to the withdrawal machine 20 . A plurality of transport modules 17 may be provided in the frame 11 along the frame 11 . In this case, the plurality of transport modules 17 may be connected by a transport chain 174.

Here, the transfer module 17 according to an embodiment of the present invention is rotatably provided on the transfer frame 171 provided on the frame 11 and the transfer frame 171, and the metal pipe ( P) includes a conveying roller 172 in which a depression 172a is seated, and a conveying gear 173 provided at an end of the conveying roller 172 and rotating the conveying roller 172.

The transfer frame 171 is provided on the frame 11 . The transfer frame 171 may be provided perpendicularly to the frame 11 .

The transport roller 172 is rotatably provided on the transport frame 171 . The conveying roller 172 is formed with a depression 172a at the center. The metal pipe P may be seated in the depression 172a. The conveying roller 172 may be disposed on the same line as the loading plate 164 .

In this case, the recessed portion 172a may be disposed on the same line as the seating portion 164b of the loading plate 164 . In this case, the metal pipe P disposed on the seating portion 164b of the loading plate 164 may be disposed on the recessed portion 172a of the conveying roller 172 .

That is, when the loading plate 164 descends and is horizontally returned to the ground, the metal pipe P slides along the fourth inclined portion 164a and is seated on the seating portion 164b. In this case, the metal pipe P disposed on the loading plate 164 is transferred to the conveying roller 172, and at this time, the metal pipe P may be disposed in the concave portion 172a of the conveying roller 172.

The conveying gear 173 is provided at the end of the conveying roller 172 . The transfer gear 173 is provided outside the transfer frame 171 . When a plurality of transfer modules 17 are provided in the frame 11 along the frame 11, the transfer gear 173 may be connected to the transfer gear 173 of each transfer module 17 by a chain 174. In this case, when the chain 174 is driven, the entire conveying gear 173 is rotated, and the metal pipe P disposed on each conveying roller 172 can be conveyed to the withdrawor 20 .

Hereinafter, the operation of the pipe loader 10 and the pipe loading step (S10) according to an embodiment of the present invention will be described with reference to FIGS. 8 to 15.

Figure 8 is a flow chart of the pipe loading step (S10) according to an embodiment of the present invention, Figure 9 is a metal pipe (P) according to an embodiment of the present invention is slid along the first inclined portion 121 1 is a diagram showing the location at the end 121a of the inclined portion 121, FIG. 10 is an operation diagram of the first lifting module 13 according to an embodiment of the present invention, and FIG. 11 is one of the present invention It is an operation diagram of the second lifting module 14 according to the embodiment, FIG. 12 is a view showing that the metal pipe P is disposed in the stopper module 15, and FIGS. 13 to 14 are one embodiment of the present invention It is a side operation view of the loading module 16 according to the example, and FIG. 15 is a front operation view in which the loading plate 164 descends.

8 to 15, the pipe loading step (S10) according to an embodiment of the present invention is a loading step (S11) of loading the metal pipe (P) on the inclined panel (12), the metal pipe (P ) is slid along the first inclined portion 121 of the inclined panel 12 to the end portion 121a of the first inclined portion 121 (S12), the first inclined portion 121 A first lifting module operating step (S13) in which the first lifting module 13 provided at the end 121a of the lifts the metal pipe P to the second inclined portion 122, the metal pipe P After being disposed on the second inclined portion 122, a second sliding step (S14) of sliding to the end 122a of the second inclined portion 122 along the second inclined portion 122, the inclined panel ( 12), the second lifting module operating step (S15) in which the second lifting module 14 raises the metal pipe P to the third inclined portion 123, the metal pipe P is the first A third sliding step (S16) of sliding to the end 123a of the third inclined portion 123 along the third inclined portion 123 after being disposed on the third inclined portion 123, the inclined panel 12 A stopper module arrangement step (S17) in which the metal pipe (P) is placed on the stopper module 15 provided in, the loading module 16 transfers the metal pipe (P) disposed on the stopper module 15 A loading step (S18) of transferring to the module 17, and a transfer step (S19) of transferring the metal pipe (P) to the withdrawer (20) by the transfer module (17).

In the loading step (S11), the metal pipe (P) is loaded on the inclined panel (12). A plurality of metal pipes P may be loaded on the inclined panel 12 . In this case, the metal pipe P may be loaded at the initial position L, as shown in FIG. 9 .

Each metal pipe (P) may be disposed perpendicular to the inclined panel (12). When a plurality of inclined panels 12 are provided, the metal pipe P may be loaded into a loading space formed by the plurality of inclined panels 12 .

In the first sliding step (S12), the metal pipe (P) is slid along the first inclined portion 121 of the inclined panel 12 to the end portion 121a of the first inclined portion 121. In this case, as shown in FIG. 9 , the metal pipe P slides along the first inclined portion 121 at the initial position L and slides to the end portion 121a of the first inclined portion 121 .

At this time, the metal pipe (P) may be located on the upper surface of the first lifting module (13). Here, when the rack head 133 is completely lowered from the end 121a of the first inclined portion 121, the metal pipe P may be disposed on the upper surface of the rack head 133.

In the first lifting module operation step (S13), the first lifting module 13 provided at the end 121a of the first inclined portion 121 raises the metal pipe P to the second inclined portion 122. In this case, as shown in FIG. 10 , the first lifting module 13 raises the metal pipe P disposed at the end 121a of the first inclined portion 121, so that the second inclined portion 122 move to

Here, in the first lifting module operation step (S13) according to one embodiment of the present invention, the pinion driving unit 136 operates to rotate the pinion rod 135. When the pinion rod 135 rotates, the pinion 134 rotates.

At this time, as described above, when a plurality of inclined panels 12 are provided along the frame 11, the pinion rod 135 is the pinion 134 of the first lifting module 13 provided on each inclined panel 12. ) can be combined by integrally penetrating. In this case, when the pinion rod 135 is rotated, a plurality of pinions 134 may be rotated simultaneously.

When the pinion 134 is rotated, the pinion 134 coupled to the rack may raise or lower the rack frame 132 . When the pinion 134 is rotated in the direction in which the rack frame 132 rises, the rack frame 132 may rise.

When the rack frame 132 is raised, the rack head 133 is raised. At this time, when the metal pipe P is disposed on the upper surface of the rack head 133, when the rack head 133 rises, the rack head 133 raises the metal pipe P. In this case, when the rack head 133 is completely raised from the end 121a of the first inclined portion 121, the rack head 133 may raise the metal pipe P to the second inclined portion 122. have.

In the second sliding step ( S14 ), the metal pipe P is disposed on the second inclined portion 122 and then slid along the second inclined portion 122 to the end portion 122a of the second inclined portion 122 . In this case, as shown in FIG. 10 , the metal pipe P is disposed on the second inclined portion 122 and then slid along the second inclined portion 122 to end portion 122a of the second inclined portion 122 . ) is placed in

At this time, the metal pipe (P) may be located on the upper surface of the second lifting module (14). Here, when the rising head 142 is completely lowered from the end 122a of the second inclined portion 122, the metal pipe P may be disposed on the upper surface of the rising head 142.

In the second lifting module operation step (S15), the second lifting module 14 provided at the end 122a of the second inclined portion 122 raises the metal pipe P to the third inclined portion 123. In this case, as shown in FIG. 11 , the second lifting module 14 raises the metal pipe P disposed at the end 122a of the second inclined portion 122, and the third inclined portion 123 move to

Here, in the second lifting module operating step (S15) according to an embodiment of the present invention, the cylinder module 141 operates and the lifting head 142 is raised. At this time, when the metal pipe (P) is disposed on the upper surface of the lifting head 142, when the lifting head 142 is raised, the lifting head 142 raises the metal pipe (P). When the lifting head 142 is completely raised from the end 122a of the second inclined portion 122 , the lifting head 142 may raise the metal pipe P to the third inclined portion 123 .

Meanwhile, according to the embodiment, the pinion driving unit 136 may be operated to rotate the pinion 134 in a direction in which the rack frame 132 descends. In this case, the rack frame 132 may be completely lowered.

In the third sliding step (S16), the metal pipe (P) is disposed on the third inclined portion 123 and then slides along the third inclined portion 123 to the end portion 123a of the third inclined portion 123. In this case, as shown in FIG. 11 , the metal pipe P is disposed on the third inclined portion 123 and then slid along the third inclined portion 123 to end portion 123a of the third inclined portion 123. ) is placed in

In the stopper module arranging step (S17), the metal pipe P is disposed on the stopper module 15 provided on the inclined panel 12. That is, as shown in FIG. 11, when the metal pipe P is disposed at the end 123a of the third inclined portion 123, the stopper module 15 disposed at the end 123a of the third inclined portion 123 A metal pipe P is disposed. At this time, the metal pipe (P) is disposed in the stopper module 15, so that it does not escape to the outside of the inclined panel (12).

In the loading step (S18), the loading module 16 transfers the metal pipe P disposed on the stopper module 15 to the transfer module 17. In this case, as shown in FIGS. 12 to 15, the loading module 16 transfers the metal pipe P disposed on the stopper module 15 to the loading module 16 and then transfers it to the transfer module 17 can make it At this time, the loading module 16 may receive the metal pipe P disposed on the upper surface of the slider 151 to the loading module 16 .

Here, the loading step (S18) according to an embodiment of the present invention is a towing step (S181) in which the loading driver 165 operates to tow the loading bracket 163, in the direction in which the loading bracket 163 rises. A bracket lifting step (S182) of rotating and lifting the loading plate 164, and a plate lifting step of receiving the metal pipe (P) disposed on the stopper module 15 by raising the loading plate 164 (S183) ), and a transfer step (S184) of transferring the metal pipe P to the transfer module 17 by lowering the loading plate 164.

In the towing step (S181), the loading driver 165 operates to tow the loading bracket 163. In this case, as shown in FIGS. 12 and 13 , the loading cylinder 1651 tows the loading bar 1652 and the loading bar 1652 tows the loading bracket 163 .

In the bracket raising step (S182), as shown in FIGS. 13 and 14, the loading bracket 163 is rotated in an upward direction to raise the loading plate 164. That is, when the loading driver 165 pulls (tugs) the loading bracket 163, the loading bracket 163 is rotated with the loading rod 162 as a rotation axis. In this case, the loading bracket 163 may be rotated in an upward direction relative to the ground.

In the plate lifting step (S183), as shown in FIGS. 13 and 14, the loading plate 164 is raised to receive the metal pipe P disposed on the stopper module 15. First, when the loading bracket 163 rotates in an ascending direction, the loading plate 164 may ascend.

In this case, the loading plate 164 may receive the metal pipe P disposed on the stopper module 15 . That is, when the loading plate 164 is raised, the end of the loading plate 164 comes into contact with the lower surface of the metal pipe P disposed on the stopper module 15, thereby removing the metal pipe P from the stopper module 15. After being released, it is transferred to the loading plate 164.

At this time, the metal pipe P may slide along the fourth inclined portion 164a formed on the surface of the loading plate 164 . In this case, the metal pipe (P) can be seated by sliding into the seating portion (164b) formed on the loading plate (164).

At this time, the end of the loading plate 164 is raised higher than the stopper rod 152 . That is, when the loading plate 164 receives the metal pipe P, the end of the loading plate 164 must be raised higher than the stopper rod 152 to separate the metal pipe P from the stopper rod 152. Since it can be received, the end of the loading plate 164 is raised higher than the stopper rod 152.

In the transfer step (S184), the loading plate 164 descends to transfer the metal pipe P to the transfer module 17. First, the loading drive unit 165 operates to return the loading bracket 163 to its initial state. In this case, as shown in FIG. 15 , the loading plate 164 may be rotated together with the loading bracket 163 to descend.

At this time, the loading plate 164 may be returned to its original position horizontally to the ground. When the loading plate 164 is horizontally returned to the ground while the metal pipe P is transferred to the loading plate 164, the loading plate 164 transfers the metal pipe P to the transfer module 17 .

At this time, the transfer module 17 receives the metal pipe P from the loading module 16 . In this case, the metal pipe P may be seated in the recess 172a of the transfer roller 172 . That is, when the loading plate 164 is lowered and returned to the ground horizontally, the metal pipe P disposed on the loading plate 164 is transferred to the conveying roller 172, and at this time, the metal pipe P is the conveying roller ( 172) may be located in the recessed portion 172a.

In the transfer step (S19), the transfer module 17 transfers the metal pipe P to the withdrawer 20. The transfer module 17 transfers the metal pipe P received from the loading module 16 to the withdrawal machine 20 .

A plurality of transport modules 17 may be provided in the frame 11 along the frame 11 . In this case, the plurality of transport modules 17 may be connected by a transport chain 174 (not shown). At this time, when the conveying chain 174 is driven, the entire conveying gear 173 is rotated, and the metal pipe P disposed on each conveying roller 172 can be conveyed to the withdrawor 20.

As described above, the plurality of metal pipes P disposed on the first inclined portion 121 are continuously slid to the end portion 121a of the first inclined portion 121 and finally supplied to the third inclined portion 123. do. Thereafter, the metal pipe P may be transferred to the loading module 16 and then to the transfer module 17 .

Accordingly, the metal pipe (P) is automatically and quickly transferred from the pipe loading machine 10 to the withdrawal machine 20, so that the production speed of the metal pipe (P) can be improved.

As described above, those skilled in the art to which the present invention belongs will be able to understand that the present invention can be implemented in other specific forms without changing the technical spirit or essential characteristics thereof. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting.

The scope of the present invention is indicated by the claims to be described later rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts thereof are included in the scope of the present invention. should be interpreted

10: pipe loading machine 20: withdrawal machine
30: heating applicator 40: coating machine

Claims (2)

A pipe loading step of supplying a metal pipe from a pipe loader; a withdrawal step of pressing and transferring the metal pipe transported from the pipe loader in an extractor; a heating coating step of heating the metal pipe transported from the drawing machine with a heat coater and applying an adhesive liquid to the surface of the metal pipe; and a coating step of coating the surface of the metal pipe transferred from the heat coater with a polymer resin in a coater. including,
The pipe loading step may include a loading step of loading the metal pipe on an inclined panel; a first sliding step of sliding the metal pipe to an end of the first inclined portion along the first inclined portion of the inclined panel; a first lifting module operating step in which a first lifting module provided at an end of the first inclined portion raises the metal pipe to a second inclined portion; a second sliding step of sliding the metal pipe to an end of the second inclined portion along the second inclined portion after the metal pipe is disposed on the second inclined portion; a second lifting module operation step in which a second lifting module provided on the inclined panel lifts the metal pipe to a third inclined portion; a third sliding step of sliding the metal pipe to an end of the third inclined portion along the third inclined portion after the metal pipe is disposed on the third inclined portion; a stopper module arranging step in which the metal pipe is disposed on a stopper module provided on the inclined panel; a loading step in which a loading module transfers the metal pipe disposed in the stopper module to a transfer module; and a transfer step in which the transfer module transfers the metal pipe to the withdrawor. including,
In the withdrawing step, the withdrawer cleans the surface of the metal pipe transferred,
The loading step may include a towing step in which the loading cylinder of the loading driver tows the loading bar and the loading bar tows the loading bracket; A bracket lifting step of raising the loading plate by rotating the loading bracket in an upward direction with the loading rod as a rotation axis when the loading driver tows the loading bracket; a plate lifting step in which the loading plate is raised when the loading bracket is rotated in an upward direction, and the metal pipe disposed on the stopper module is seated in a seating portion formed on the loading plate; and a delivery step in which the loading plate moves down to deliver the metal pipe to the transport module, and is horizontally repositioned on the ground. including,
In the conveying step, a plurality of the conveying modules provided along the frame are connected by a conveying chain, and when the conveying chain is driven, the entire conveying gear is rotated, and the metal pipe disposed on each conveying roller is conveyed to the withdrawor. Method for manufacturing coated metal pipe.
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