KR20100133183A - Laminating machine for synthetic resin pipe and synthetic resin pipe made by that - Google Patents

Laminating machine for synthetic resin pipe and synthetic resin pipe made by that Download PDF

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Publication number
KR20100133183A
KR20100133183A KR1020090051936A KR20090051936A KR20100133183A KR 20100133183 A KR20100133183 A KR 20100133183A KR 1020090051936 A KR1020090051936 A KR 1020090051936A KR 20090051936 A KR20090051936 A KR 20090051936A KR 20100133183 A KR20100133183 A KR 20100133183A
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KR
South Korea
Prior art keywords
synthetic resin
profile
wound
wall
resin tube
Prior art date
Application number
KR1020090051936A
Other languages
Korean (ko)
Inventor
서상윤
Original Assignee
주식회사 용전
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Publication date
Application filed by 주식회사 용전 filed Critical 주식회사 용전
Priority to KR1020090051936A priority Critical patent/KR20100133183A/en
Publication of KR20100133183A publication Critical patent/KR20100133183A/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0021—Combinations of extrusion moulding with other shaping operations combined with joining, lining or laminating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/11—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/151—Coating hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9115—Cooling of hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/78—Winding and joining, e.g. winding spirally helically using profiled sheets or strips

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

The present invention relates to a molding apparatus of a synthetic resin tube and a synthetic resin tube molded by the same, the profile having a constant cross-section is wound in a spiral, the contact portion of the synthetic resin tube formed in the junction of the same material, the profile and On the inner wall surface of the joining portion, there is provided a molding apparatus for a synthetic resin tube which allows the inner wall portion of a predetermined thickness to be formed evenly and a synthetic resin tube molded thereby.

Description

Laminating machine for synthetic resin pipe and synthetic resin pipe made by that

The present invention relates to a molding apparatus for a synthetic resin tube and a synthetic resin tube molded by the same, and more particularly, to forming a synthetic resin tube while continuously extruding a profile having a constant cross-section and wound on a drum, the inner wall surface of the synthetic resin tube A molding apparatus for a synthetic resin tube for further forming a flat inner wall portion of a constant thickness, and a synthetic resin tube molded by the molding apparatus.

In general, the tube refers to a hollow, thin, long, of which synthetic resin tube molded using a thermoplastic resin such as polypropylene, polyethylene, polyvinyl chloride is generally light, good corrosion resistance and easy bonding It is used a lot.

In particular, the use of synthetic resin tubes having double walls or multi-walls for increasing the resistance to deformation in the radial direction and the insulation of the inner material is increasing in synthetic resin tubes.

In the manufacturing process of the synthetic resin tube, the molten synthetic resin solution is supplied from the melting furnace and continuously extruded into a profile having a constant cross section by using an extruder, and is then wound up on a winding drum, and is made of the same material between adjacent profiles. It is produced by bonding with synthetic resin solution.

1 is a partial perspective view schematically showing the apparatus for molding the synthetic resin tube, Figure 2 is a partial perspective view schematically showing a process of forming the synthetic resin tube as the molding apparatus of Figure 1, as shown, the melting furnace Molten synthetic resin liquid is passed through a mold nozzle of an extruder (not shown) and continuously extruded into a double or multiple profiles 12, and the extruded profile 12 is continuously wound on a winding drum 50. You lose.

At this time, the synthetic resin liquid of the same material is supplied through the nozzle unit 20 in the space with the neighboring profile that is wound on the winding drum 50 and is filled and bonded.

That is, the molding apparatus of the synthetic resin tube includes an extruder (not shown) for extruding the synthetic resin liquid melted from the melting furnace into a double or multiple profiles through a mold, and winding the profile 12 continuously supplied from the extruder. It comprises a winding drum 50, and a nozzle unit 20 for supplying a synthetic resin liquid of the same material at the interval of the profile wound on the winding drum to fill and fill the empty space.

In addition, a roller 40 is provided to flatten the outer diameter of the profiles 12 wound on the winding drum 50 as described above, and pushes the profile wound on the winding drum 50 to approach the wound profile first. The main roller is provided with a pressing roller 30, and cooling means for cooling and solidifying the synthetic resin liquid supplied through the nozzle unit 20 between the profile and the profiles is further provided.

Therefore, the profile 12 continuously supplied through the extruder is continuously wound in a spiral to the winding drum 50, the profile being wound by the pressing roller 30 is in close contact with the first wound profile And the synthetic resin solution is supplied therebetween to form the joint portion 14, and the molding is performed while the flat outer diameter is maintained by the roller 40, and finally the synthetic resin tube 10 having a shape as shown in FIGS. 3 and 4 is formed. It is molded into).

The synthetic resin tube 10 is a joint portion 14 for joining the profiles 12 by forming a hollow tube of approximately four angles to form a double tube and a synthetic resin solution of the same material supplied between the profiles to solidify. Consists of

However, when the synthetic resin tube is molded using the molding apparatus having the above configuration, the outer surface of the synthetic resin tube is formed flat by the roller 40, but the inner surface thereof is not formed flat, so that the roughness coefficient becomes high and is clogged. There was a problem that often occurs.

That is, as shown in Figure 4, the outer surface of the synthetic resin tube is formed flat by the roller 40, the inner surface is not flat but rather unevenly formed, the roughness coefficient is high, the clogging phenomenon often occurs.

In particular, the synthetic resin pipe 10 is mainly used for the use of sewage pipes, the inside of the synthetic resin pipes sludge and various wastes containing wastes, etc. flows, and thus is caught in the bumpy area inside the synthetic resin pipe By being blocked, there was a problem that the proper functioning.

In addition, the synthetic resin tube molded by the molding apparatus as described above, the profile 12 is formed by forming a hollow tube of approximately four angles, and the synthetic resin solution of the same material is supplied between the profiles and solidified, so that the profile Since only the joint portion 14 for joining them, the rigidity is not large, there is also a problem in that the use is required for a large rigidity is required.

The present invention has been devised in view of the above problems, and by forming the outer surface as well as the inner surface flat to lower the roughness coefficient, so as to remove the clogging phenomenon caused by the catch of various foreign substances and debris as sewage and sludge pass through An object is to provide an apparatus for molding a synthetic resin tube, and a synthetic resin tube molded by the molding apparatus.

In addition, the present invention by molding the inner wall portion to a predetermined thickness on the inner surface of the synthetic resin tube, by forming the inner wall portion flat, forming a synthetic resin tube that can provide a synthetic resin tube that requires a large rigidity as the rigidity is more excellent It is an object to provide an apparatus and a synthetic resin tube molded by the molding apparatus.

The molding apparatus of the synthetic resin tube according to the present invention for achieving the above object is an extruder for extruding the molten synthetic resin liquid from the melting furnace to a double or multiple profiles through a mold, and the profile continuously supplied from the extruder The winding drum, and the synthetic resin solution of the same material at the interval between the profiles wound on the winding drum to fill the empty space, the nozzle portion to form a joint, and the outer diameter of the profiles wound on the winding drum A first roller for the purpose, a compression roller for pushing the profile wound on the winding drum to approach the wound profile first, and cooling means for cooling and solidifying the synthetic resin liquid supplied through the nozzle unit between the profile and the profiles. In the synthetic resin pipe forming apparatus comprising, from another melting furnace As to ensure that, by extruded as a profile for the inner wall yungdoen resin solution passing through the mold, the inner wall portion of the plastic tube form, and the extrusion nozzle, which is installed on the front panel, the front end of the drum gwinchwi; It is installed in parallel with the extrusion nozzle, characterized in that it comprises a second roller for compressing the inner wall profile supplied by the extrusion nozzle flat to the inner wall surface of the synthetic resin pipe.

On the other hand, the synthetic resin tube molded by the molding apparatus of the synthetic resin tube according to the present invention, the profile having a constant cross-section is wound in a spiral, the contact portion of the synthetic resin tube formed in the junction of the same material in the contact portion of the profile, The inner wall surface of the junction portion is characterized in that the inner wall portion of a predetermined thickness is further formed flat.

In this case, the inner wall portion may be molded to have a different color from the profile and the junction portion.

As described above, according to the apparatus for molding a synthetic resin tube according to the present invention and the synthetic resin tube molded by the same, the outer surface as well as the inner surface of the synthetic resin tube is flatly formed so that the roughness coefficient is lowered, and the sewage and sludge pass through various foreign substances and debris. There is a very useful effect that the clogging phenomenon is excluded because it is not caught.

In addition, the present invention is formed on the inner surface of the synthetic resin tube to the inner wall portion is formed to a certain thickness, the inner wall portion is also formed by the flat, thereby providing an effect that can be provided with a synthetic resin tube that requires greater rigidity as the rigidity is more excellent. do.

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

5 is a partial perspective view of the synthetic resin tube forming apparatus according to the present invention, Figure 6 is a partial perspective view for showing a process of forming the inner wall portion while the synthetic resin tube is wound on the winding drum of FIG.

FIG. 7 is a partially cutaway perspective view of the synthetic resin tube formed by the molding apparatus of FIG. 5, and FIG. 8 is a partial cross-sectional view of FIG. 7.

For reference, in describing the present invention, the same parts as in the prior art will be described with the same reference numerals, and repeated description thereof will be omitted.

First, as shown in Figures 5 and 6, the synthetic resin tube forming apparatus according to the present invention, an extruder (not shown) for extruding the molten synthetic resin liquid from the melting furnace to a double or multiple profiles through a mold, By filling the empty space by supplying the synthetic resin liquid of the same material at the interval between the winding drum 50 for winding the profile 12 continuously supplied from the extruder and the profile 210 wound on the winding drum 50 In addition, the nozzle unit 20 to form the junction 220, the first roller 40 for flattening the outer diameter of the profile 210 wound on the winding drum 50, and the winding drum 50 And a compression roller 30 for pushing the profile wound to the first wound profile close to the wound profile, and cooling means for cooling and solidifying the synthetic resin liquid supplied through the nozzle unit 20 between the profile and the profiles. .

In addition, the present invention by extruding the synthetic resin liquid melted from the other melting furnace through the mold to the inner wall profile, the extrusion nozzle 100 to form the inner wall portion 230 of the synthetic resin pipe 200, and the extrusion nozzle It further comprises a second roller 110 for pressing the inner wall profile supplied by the flat to the inner wall surface of the synthetic resin pipe.

Here, the extrusion nozzle 100 and the second roller 110 for extruding the inner foil profile are installed at the front end of the front plate 52 of the gun drum 50, so as to have a shape by the winding drum (50) It is responsible for the function of forming the inner wall portion 230 of the synthetic resin tube.

Referring to the operation relationship of the synthetic resin pipe molding device having the above configuration as follows.

First, when the synthetic resin liquid melted from the melting furnace passes through a mold and is continuously extruded into a double or multiple profiles by an extruder, it is sequentially wound on the winding drum 50.

At this time, the synthetic resin is supplied through the nozzle unit 20 to a space between the first wound profile and the next wound profile, thereby forming the joints 220 of the profiles 210.

The profiles 210 and the junction 220 supplied therebetween are gradually formed to be flat while being compressed by the first roller 40.

When the front end of the synthetic resin pipe 200 formed as described above reaches the front plate 52 of the winding drum 50, the synthetic resin liquid melted from the melting furnace through the extrusion nozzle 100 installed in the front plate 52 is the profile for the inner wall. As the supply is made, the inner wall profile thus supplied is compressed to the inner wall surface of the synthetic resin pipe 200 to form the inner wall portion 230.

At the same time, the inner wall profile is formed by the inner wall portion 230 while being compressed by the second roller 110.

Therefore, the synthetic resin tube 200 formed by the synthetic resin tube forming apparatus as described above, the profile 210 having a constant cross-section is integrated in the aligned state by the joint portion 220 and at the same time the inner wall portion of the predetermined thickness on the inner wall surface As the 230 is further formed, the strength is improved, and the inner wall portion 230 is formed flat by the second roller 110, so that the roughness coefficient is lowered, thereby preventing problems such as clogging due to sewage or debris. .

For reference, the inner wall profile forming the inner wall portion 230 may be implemented in a different color by applying a different color from the profile 210 and the junction 220 forming the outer wall.

1 is a partial perspective view schematically showing an apparatus for forming the synthetic resin tube.

FIG. 2 is a partial perspective view schematically illustrating a process of molding a synthetic resin tube as the molding apparatus of FIG. 1. FIG.

3 is a partially cutaway perspective view of the synthetic resin tube molded by the molding apparatus.

4 is a partial cross-sectional view of FIG. 3.

Figure 5 is a partial perspective view of the synthetic resin pipe molding apparatus according to the present invention.

FIG. 6 is a partial perspective view illustrating a process of forming an inner wall while the synthetic resin pipe is wound on the winding drum of FIG. 5; FIG.

Figure 7 is a partially cut perspective view of the synthetic resin tube molded by the molding apparatus of Figure 5;

8 is a partial cross-sectional view of FIG. 7.

<Explanation of symbols on main parts of the drawings>

12: profile 20: nozzle unit

30: pressing roller 40: first roller

50: winding roller 52: front panel

100: extrusion nozzle 110: second roller

200: synthetic resin pipe 210: profile

220: junction 230: inner wall

Claims (3)

An extruder for extruding the molten synthetic resin liquid from the melting furnace through a mold and extruded into a double or multiple profiles, a winding drum for winding the profile continuously supplied from the extruder, and a gap between the profiles wound on the winding drum. By supplying the synthetic resin liquid to fill the empty space, the nozzle portion for forming a joint portion, the first roller for flattening the outer diameter of the profile wound on the winding drum, and the profile wound on the winding drum are first wound on the profile In the synthetic resin tube forming apparatus comprising a compression roller for pushing to close, and cooling means for cooling and solidifying the synthetic resin liquid supplied through the nozzle portion between the profile and the profile, An extrusion nozzle installed at the front end of the front drum of the quench drum to form an inner wall of the synthetic resin pipe by extruding the molten synthetic resin liquid from another melting furnace through a mold to an inner wall profile; And a second roller which is installed in parallel with the extruded nozzle and presses the inner wall profile supplied by the extruded nozzle to the inner wall of the synthetic pipe evenly. In the synthetic resin tube having a constant cross-section wound spirally, the contact portion of the profile is formed of a joint of the same material, Synthetic resin pipe, characterized in that the inner wall surface of the profile and the junction is further formed in the inner wall portion of a predetermined thickness. 3. The method of claim 2, The inner wall portion is a synthetic resin tube, characterized in that the color is different from the profile and the junction.
KR1020090051936A 2009-06-11 2009-06-11 Laminating machine for synthetic resin pipe and synthetic resin pipe made by that KR20100133183A (en)

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KR1020090051936A KR20100133183A (en) 2009-06-11 2009-06-11 Laminating machine for synthetic resin pipe and synthetic resin pipe made by that

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Application Number Priority Date Filing Date Title
KR1020090051936A KR20100133183A (en) 2009-06-11 2009-06-11 Laminating machine for synthetic resin pipe and synthetic resin pipe made by that

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102469739B1 (en) * 2022-09-02 2022-11-22 조은산업 주식회사 Inner and outside coating reinforced multiple wall pipe and its

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102469739B1 (en) * 2022-09-02 2022-11-22 조은산업 주식회사 Inner and outside coating reinforced multiple wall pipe and its

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