KR20110103061A - The manufacturing method of flange socket pipe - Google Patents

The manufacturing method of flange socket pipe Download PDF

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Publication number
KR20110103061A
KR20110103061A KR1020100022178A KR20100022178A KR20110103061A KR 20110103061 A KR20110103061 A KR 20110103061A KR 1020100022178 A KR1020100022178 A KR 1020100022178A KR 20100022178 A KR20100022178 A KR 20100022178A KR 20110103061 A KR20110103061 A KR 20110103061A
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KR
South Korea
Prior art keywords
synthetic resin
melt
resin tube
socket
mold
Prior art date
Application number
KR1020100022178A
Other languages
Korean (ko)
Inventor
허원권
Original Assignee
주식회사 퍼팩트
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Filing date
Publication date
Application filed by 주식회사 퍼팩트 filed Critical 주식회사 퍼팩트
Priority to KR1020100022178A priority Critical patent/KR20110103061A/en
Publication of KR20110103061A publication Critical patent/KR20110103061A/en

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    • 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
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/14—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of indefinite length
    • B29C39/18—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of indefinite length incorporating preformed parts or layers, e.g. casting around inserts or for coating 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
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/22—Component parts, details or accessories; Auxiliary operations
    • B29C39/24—Feeding the material into the mould
    • 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
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/22—Component parts, details or accessories; Auxiliary operations
    • B29C39/38—Heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/14—Flanged joints

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

The present invention relates to a method for producing a synthetic resin tube integrally forming a flange socket, synthetic resin tube preparation step (S1); Melt forming step (S2); Melt storage step (S3); Mold mold insertion process of the synthetic resin tube (S4); Melt injection step (S5); Cooling process (S6); By manufacturing the flange socket-integrated synthetic resin tube after each step of the synthetic resin pipe separating process (S7) in sequence, there is no process of separately manufacturing the synthetic resin tube and the flange socket and connecting them to reduce manufacturing cost and manufacturing time. In addition, the flange socket is injection molded integrally with the resin tube to improve the connection strength, and tight connection ensures that the connection is tight and secure, such that no leakage occurs at the connection portion between the resin tube and the flange socket. .

Description

The manufacturing method of flange socket integrated plastic pipe

The present invention relates to a method of manufacturing a synthetic resin tube integrally forming a flange socket, and more particularly, by flange injection molding the socket having a flange to one end of the synthetic resin tube manufactured in unit length, the flange to the synthetic resin tube end The method of manufacturing a flange socket-integrated synthetic resin tube, characterized in that the socket is automatically and precisely formed integrally to improve the connection strength of the flange socket and to prevent leakage from occurring in the connection portion between the synthetic resin tube and the flange socket. It is about.

In general, synthetic resin pipes buried in the ground are mainly used for transporting non-pressure fluids such as water and sewage, and for protecting the outside of the wires when wiring such as electric wires and various cables. In addition, it is used for various purposes because of its excellent moldability and low price, and it has been used for a long time along the urban ground for a wide range of purposes, from everyday things such as water and sewage pipes to various industrial facilities.

Such a synthetic resin tube is usually manufactured in a certain length unit to facilitate its manufacture, storage, and transportation, and during the site construction of the synthetic resin tube, long lengths are formed along the city factory while continuously connecting the synthetic resin tubes of the length unit in the field. In order to connect such a synthetic resin tube, there is generally a method of thermally bonding a neighboring synthetic resin tube or fastening by using a bolt nut.

The method of thermal bonding of the synthetic resin tube is a method of melting and bonding both ends of the synthetic resin tube integrally by using a thermal bonding device of a separate connecting device, but the connection performance is good, but the joint part is easily separated due to external force, and the cause of rain, etc. Due to this, it is impossible to work if water gets on the outside of the plastic pipe, and there is a problem that requires a separate heat bonder when working, and it takes a lot of time to work. There was a problem such as deterioration.

Therefore, in general, a flange type connecting the flanges of the synthetic resin pipes adjacent to each other by using a bolt and nut coupling, or a method of inserting and fixing the socket type by forming an expansion pipe in which one side of the pipe is extended is generally used. However, since the flange type must be integrally formed at both ends when manufacturing the synthetic resin pipe, the manufacturing time and manufacturing cost are increased due to a complicated manufacturing method. It cannot be tightened with one force, which causes the joint part of the flange to be easily broken and the post-processed part of the flange is weakened, causing leakage. The plastic pipe is repeatedly contracted due to temperature differences caused by seasonal and day-to-day temperature changes. Which expands, and this repetitive contraction and expansion causes This was one of a number of problems such as this are happening or broken impatient that cause leaks and damage.

In addition, the method of forming the expansion pipe on one side of the synthetic resin pipe, the expansion pipe is not expanded to the exact dimensions, when the end of the neighboring synthetic resin pipe is inserted into the expansion pipe rubber packing installed therein of the synthetic resin pipe It is frequently torn by the end, and once connected, the resin tube cannot be loosened and reconnected, and it takes time and manufacturing cost to separately form the resin tube, such as forming an expansion portion or forming a screw thread for easy joining. There was a problem such as increase.

Due to these problems, as shown in FIG. 5, a flange socket having an outer flange formed integrally with one end of a synthetic pipe as shown in FIG. 5 is integrally formed, and a neighboring synthetic resin tube is inserted into the socket as shown in FIG. Then, by connecting and tightening the rubber ring and the flange of the socket wrapped around the synthetic resin pipe to be connected at the same time with a clamp and connecting the synthetic resin pipes together, the flange or expansion part is separately connected to the synthetic resin pipe of the unit length. Closely connected using sockets without forming, even if the pressure inside the resin tube or external force transmitted from the outside is transmitted to the connection part of the resin tube, it does not break, flow or deviate due to temperature differences due to seasonal and day-to-day temperature changes. Even if the plastic tube is repeatedly contracted and expanded, Maintaining the coherence area is connected via a ring preventing water-tightness of the resin pipe and the bonding force decreases, and to have the advantages of which can be easily constructed in the field.

However, in order to connect the flange socket to the end of the synthetic resin pipe as described above, after the synthetic resin pipe and the flange socket are manufactured separately, they are integrally connected through a method of thermally fusion contact with each other, but this is a separate for manufacturing the flange socket The manufacturing cost is increased due to the high manufacturing facilities and manufacturing costs, and if the pipe diameters of the synthetic resin pipe and the flange socket do not match, the connection cannot be made. There is a possibility that it may cause breakage and leakage, and have to perform a separate operation to integrally connect the flange socket to the synthetic pipe in the field.

Therefore, the present invention has been made in order to solve the above disadvantages, through the manufacturing method of the flange socket-integrated synthetic resin tube integrally injection molding the flange socket to the end of the synthetic resin tube, without the separate manufacturing and bonding work of the flange socket The purpose of the present invention is to integrally form the synthetic resin pipe to improve the connection strength of the flange socket and to prevent leakage of the synthetic resin pipe from the connection portion of the flange socket.

The present invention for solving the above problems, the synthetic resin tube preparation step (S1) of preparing a synthetic resin tube formed in one end perforation at a certain length; A molten liquid forming step of adding a synthetic resin raw material to a molten liquid supply part to melt the molten liquid to form a synthetic resin melt (S2); A melt storage step of storing the synthetic resin melt in a storage tank (S3); Mold mold inserting step of the synthetic resin tube for inserting the end of the synthetic resin tube into the mold of the flange socket (S4); A melt injection step (S5) of injecting a synthetic resin melt into a mold into which a synthetic resin tube is inserted; A cooling step (S6) of cooling the synthetic resin melt injected into the mold; The flange socket-integrated synthetic resin tube is manufactured by sequentially passing through each step of the synthetic resin tube separation process (S7) of separating the synthetic resin tube formed integrally with the flange socket at the end of the mold frame.

By injecting the flange socket integrally into one end of the synthetic resin pipe through this manufacturing method, there is no process of manufacturing the synthetic resin pipe and the flange socket separately and connecting them to reduce the manufacturing cost and manufacturing time, and the flange The socket is injection molded integrally with the synthetic resin pipe to improve the connection strength, and it has the effect of tightly and securely connecting the resin pipe and the flange socket so that no leakage occurs through the tight connection. .

1 is a manufacturing process of the flange socket-integrated synthetic resin tube of the present invention.
Figure 2 is an illustration of a synthetic resin tube insertion process according to an embodiment of the present invention.
Figure 3 is an illustration of a synthetic resin tube insertion process according to an embodiment of the present invention.
Figure 4 is an illustration of a melt injection process according to an embodiment of the present invention.
Figure 5 is an illustration of a synthetic resin tube separation process according to an embodiment of the present invention.
Figure 6 is a perspective view of a flange socket integrated synthetic resin tube according to an embodiment of the present invention.
Figure 7 is a connection cross-sectional view of the flange socket integrated synthetic resin tube according to an embodiment of the present invention.

The present invention relates to a method for manufacturing a synthetic resin tube integrally forming a flange socket, and more specifically, a synthetic resin tube preparation step (S1) of preparing a synthetic resin tube formed with perforations at one end in a predetermined length; A molten liquid forming step of adding a synthetic resin raw material to a molten liquid supply part to melt the molten liquid to form a synthetic resin melt (S2); A melt storage step of storing the synthetic resin melt in a storage tank (S3); Mold mold inserting step of the synthetic resin tube for inserting the end of the synthetic resin tube into the mold of the flange socket (S4); A melt injection step (S5) of injecting a synthetic resin melt into a mold into which a synthetic resin tube is inserted; A cooling step (S6) of cooling the synthetic resin melt injected into the mold; The synthetic resin pipe and the flange socket were manufactured separately by sequentially manufacturing the flange socket integrated synthetic resin pipe through each step of the synthetic resin pipe separation step (S7) of separating the synthetic resin pipe formed by integrally forming the flange socket from the mold die. Since there is no process to connect them, the manufacturing cost and manufacturing time are reduced, and the flange socket is injection molded into the resin tube to improve the connection strength, and the tight connection leads to leakage of the resin pipe and the flange socket. Make sure that the connection is strong and secure, so that no lights are generated.

With reference to the embodiment shown in each of the drawings a method for manufacturing a flange socket integrated synthetic resin tube of the present invention having the above characteristics will be described in more detail.

Flange socket integral synthetic resin tube 10 of the present invention is a socket-shaped flange socket 110 having a socket 111 having a flange 111 to one end of the synthetic resin tube 100 of the general type as shown in Figure 6 is connected integrally As shown in FIG. 7, the adjacent synthetic resin tube 100 'is tightly inserted into the flange socket 110 of the socket-integrated synthetic resin tube 10 and then inserted into the outer side of the inserted synthetic resin tube 100'. The rubber ring 110 'and the flange 111 of the flange socket 110 are brought into contact with each other, wrapped together with the clamp 400, and tightly tightened to close the synthetic resin pipe 100' inserted into the flange socket 110. It does not break or flow or escape even if the pressure inside and outside the tube is transmitted, and maintains the tightness of the connection part even after repeated contraction and expansion due to high elastic force.

As described above, the flange socket-integrated synthetic resin tube 10 integrally forming the flange socket 110 with one end of the synthetic resin tube 100 includes a synthetic resin tube preparation process (S1); Melt forming step (S2); Melt storage step (S3); Mold mold insertion process of the synthetic resin tube (S4); Melt injection step (S5); Cooling process (S6); Each step of the synthetic resin pipe separation step (S7) is produced in sequence, this manufacturing step will be described in more detail.

First, the synthetic resin tube preparation step (S1) is a process for preparing a synthetic resin tube 100 for manufacturing the flange socket-integrated synthetic resin tube 10, is formed of a synthetic resin material having a predetermined length of a general synthetic resin tube ( 100) and construct such a synthetic resin pipe 100 by connecting continuously to the ground, so that water and sewage can flow through the manhole or sewage, or wires such as wires or cables. .

Prepare a conventional synthetic resin tube 100 through the synthetic resin tube preparation step (S1), but after the synthetic resin tube preparation process (S1) next to the inside along the outer circumferential surface of the portion forming the socket of the synthetic resin tube 100 It is preferable that the continuous operation is further performed by adding a drilling step (S1 ′) of the synthetic resin pipe socket forming part to form a plurality of deep grooved filling grooves 101 at regular intervals, through which the injection of the flange socket 110 is performed later. The synthetic resin pipe 100 and the flange socket 110 are formed integrally with the flange socket 110 while the synthetic resin melt is filled together into the filling groove 101 formed through the hole forming process of the synthetic resin pipe socket during molding (S1 ′). The connection of can be made more secure and fixed.

Next, as a step of forming a synthetic resin melt to form the flange socket 110 through the melt forming step (S2) and the melt storage step (S3), as shown in FIG. In the meantime, the synthetic resin melt is formed through the molten liquid injector 300 which injects the synthetic resin melt into the mold 200.

The molten liquid injection unit 300 is divided into a melting unit 310 for melting the synthetic resin raw material largely, and a storage tank 320 for injecting into the mold 200 while storing the synthetic resin melt formed through the above, first, forming the melt In the step (S2) to form a synthetic resin melt through the melt portion 310, the melting portion 310 having a pipe shape of the inside of the proper length is formed in the feed hopper 311 to receive the synthetic resin raw material from the outside to the rear end And, along the outer circumferential surface is in contact with the heating unit 312 for heating the inside of the melting portion 310 to a high temperature, inside the melting portion 310 a screw-shaped transfer screw 313 for moving the synthetic resin raw material forward By forming, the synthetic resin raw material supplied into the melting part 310 through the supply hopper 311 is heated and melted by about 180 ° C to 250 ° C by the heating part 312, and the synthetic resin melt is transferred to the transfer screw 313. To move forward.

The subsequent melt storage step (S3) stores the synthetic resin melt formed through the melt forming step (S2) to the storage tank 320, the storage tank 320 having a predetermined capacity or more inside the front of the melt portion 310 Is connected to, the synthetic resin melt is moved to the front of the melting portion 310 by the moving screw 313 is stored in the storage tank 320, along the outer circumferential surface of the storage tank 320 to the inside of the storage tank 320 Insulating portion 312 to keep warm at a high temperature is in contact, so that the synthetic resin melt in the storage tank 320 is maintained in the molten state while maintaining a temperature of about 180 ℃ to 250 ℃.

In this case, an injection cylinder 322 for pushing the synthetic resin melt in the storage tank 320 forward is provided at the rear of the storage tank 320, and the front of the storage tank 320 is connected to the mold frame 200. By forming an injection nozzle 323 for injecting the synthetic resin melt into the mold 200, the injection cylinder 322 pushes the synthetic resin melt into the injection nozzle 323 during the later molten liquid injection process (S5), the melt When the synthetic resin melt flows into the storage tank 320 in the unit 310, the injection cylinder 322 moves back to secure a space to store the synthetic resin melt.

Next, the mold mold inserting step (S4) of the synthetic resin tube is a step of inserting the synthetic resin tube 100 into the mold mold 200 to be positioned. As shown in FIG. 2, the mold mold 200 has a large flange socket. It is divided into an inner frame 210 forming an inner surface of the 110 and an outer frame 220 forming an outer surface, the flange socket 110 can be inserted in close contact with the neighboring synthetic resin pipe (100 '). Basically, the inner frame 210 forms an expansion part 211 having the same size as the cross-section of the outer circumferential surface of the synthetic resin pipe 100 'to have an expanded inner space therein, and the expansion part 211 is a flange socket 110. In the state having a predetermined length by the length of the flange socket 110 to form a protruding insertion portion 212 to be inserted in close contact with the inside of the synthetic resin tube 100 to be injection molded.

And the outer frame 220 is a pair of separate frames surrounding the outer side of the synthetic resin tube 100 and the inner frame 210, the inside of the expansion pipe portion 211 of the synthetic resin tube 100 and the inner frame 210 A) along the outer circumferential surface is formed a socket groove 221 grooved by the size of the flange socket 110, and along the rear of the socket groove 221 to form a flange groove 222 to form a flange 111.

As shown in FIGS. 2 to 4, the mold die 200 formed as described above closely adheres to and inserts the synthetic resin tube 100 into the insertion portion 212 of the inner mold 210, and then a pair of mold molds 200 is disposed outside thereof. By wrapping and fixing the outer mold 220 to prepare for injection molding, the mold mold insertion process (S4) of the synthetic resin tube is performed, and at this time, the synthetic resin tube 100 inserted into the inner mold 210 is expanded portion 211. And so that the end of the synthetic resin tube 100 is spaced apart a predetermined distance therebetween, so that the synthetic resin melt is filled along the end of the synthetic resin tube 100 and the filling groove 101 so that the flange socket 110 is formed.

In addition, by applying a release agent to the inner frame 210 and the outer frame 220, the flange socket 110 is the inner frame 210 and the outer frame at the time of separation of the mold frame 200 after the flange socket 110 is formed later It is desirable to prevent a defect from occurring naturally and easily at 220.

When the synthetic resin tube 100 is inserted into the mold mold 200 through the mold mold inserting process (S4) of the synthetic resin tube, the synthetic resin melt is injected into the mold mold 200 through the subsequent melt injection process (S5). As shown in FIG. 4, when the injection cylinder 322 of the melt injection unit 300 moves forward and pushes the synthetic resin melt in the storage tank 320 forward, the synthetic resin melt passes through the injection nozzle 323. It is filled with a molding space formed between the socket groove 221 and the flange form 222 and the inner mold 210 and the synthetic resin tube 100 in the mold 200.

At this time, simply insert the synthetic resin tube 100 stored at room temperature into the mold mold 200 in the mold mold insertion process (S4) of the synthetic resin tube and then inject the melt through the melt injection process (S5), the synthetic resin tube at room temperature (100) Even if the hot melt is directly in contact with the end socket forming portion, the end socket forming portion of the synthetic resin tube 100 is not sufficiently melted in a short time, so that the synthetic resin tube 100 and the flange socket 110 in which the melt is cooled are integrated. It may not be melt-bonded and can form a gap between the joints, which may cause leakage and breakage.

Therefore, immediately before the mold inserting step (S4) of the synthetic resin tube, the synthetic resin for preheating the socket forming portion for integrally forming the flange socket 110 of the synthetic resin tube 100 with a high temperature hot air or various preheating apparatuses above a predetermined temperature. By further performing the heat treatment step (S4a) of the tube socket forming part, the socket forming part of the synthetic resin pipe (100) preheated through the heat treatment step (S4a) of the synthetic resin pipe socket forming part (S4) of the synthetic resin tube is performed. When contacted with the hot melt injected through the melt injection process (S5) in the state inserted into the mold frame 200 through, the synthetic resin tube 100 easily and reliably reaches the melting temperature while mixing with the melt to melt integrally without gaps Joined, the synthetic resin tube 100 and the flange socket 110 can be connected integrally and reliably.

When the synthetic resin melt is filled into the mold 200, the cooling water is circulated and cooled to the outer circumferential surface of the mold 200 through the cooling process S6, thereby cooling the filled synthetic resin melt to the flange socket 110 of the synthetic resin material. When the flange socket 110 is completely cooled and solidified, the outer shell 220 is separated as shown in FIG. 5 through the synthetic resin pipe separating process (S7), and the synthetic resin pipe 100 is formed in the inner frame 210. By pulling out, the manufacture of the flange socket integrated synthetic resin tube 10 of this invention shown in FIG. 6 is completed.

The manufacturing method of the flange socket-integrated synthetic resin tube 10 according to the present invention as described above by injection molding the flange socket 110 into one end of the general synthetic resin tube 100, the manufacturing cost of the flange socket-integrated synthetic resin tube 10 and To reduce the manufacturing time, during injection molding, the flange socket 110 is integrally connected to the synthetic resin tube 100 by heat-sealing and integrally connected to improve the connection strength, and through the tight connection, the synthetic resin tube and the flange socket 100 The connection part of the 110, such as to prevent the occurrence of gaps or leaks, such as tightly and securely the connection tightly, through which the flange socket 110 injection molded integrally has a strong strength clamp 400, etc. When the synthetic resin pipes 100 and 100 'used are connected to each other, the synthetic resin pipes 100 and 100' have an advantage of maintaining stronger connection.

In addition, the flange socket 110 is formed by filling the synthetic resin melt with not only the outer surface of the synthetic resin tube 100 but also the grooved filling groove 101 along the end and the outer circumferential surface of the synthetic resin tube 100. The flange socket 110 is caught and connected to the synthetic resin tube 100 by a portion filled into the filling groove 101 while the 110 is closely connected to the synthetic resin tube 100 to maintain its connection strength. To prevent the flange socket 110 from being rotated or separated.

Although the above has been illustrated and described with respect to the preferred embodiment of the present invention, the present invention is not limited to the above-described embodiment, anyone of ordinary skill in the art to which the present invention belongs, variously modified and implemented in various ways Of course, such changes are intended to fall within the scope of the claims set forth.

10: flange socket integrated plastic pipe 100,100 ': plastic pipe
101: filling groove 110: flange socket
111: flange 200: mold
210: inner frame 211: expansion portion
212: inserting portion 220: outer frame
221: socket groove 222: flange groove
300: molten liquid injection unit 310: melted portion
311: supply hopper 312: heating section
313: supply screw 320: storage tank
321: thermal insulation unit 322: injection cylinder
323: injection nozzle 400: clamp

Claims (6)

In the method of integrally connecting the flange socket 110 having the flange 111 to one end of the synthetic resin pipe 100,
Synthetic resin tube preparation process (S1) for preparing a synthetic resin tube 100 of a predetermined length;
Melt forming step (S2) for injecting the synthetic resin raw material into the melt portion 310 of the melt injection portion 300 to melt;
A melt storage step (S3) of storing the synthetic resin melt in a storage tank 320 of the melt injection unit 300;
A mold mold insertion process (S4) of the synthetic resin tube for inserting and placing the synthetic resin tube 100 into the mold mold 200 to mold the flange socket 110;
Melt injection step (S5) for injecting the synthetic resin melt in the storage tank 320 into the mold frame 200;
A cooling step of cooling the outer circumferential surface of the mold mold 200 to harden the synthetic resin melt (S6);
By manufacturing the flange socket-type synthetic resin tube 10 through each step of the synthetic resin tube separation step (S7) for separating the synthetic resin tube 100 from the mold frame 200,
The method of manufacturing a flange socket-integrated synthetic resin tube, characterized in that the synthetic resin pipe 100 is easily and tightly formed in the flange socket (110).
The method of claim 1,
Next to the synthetic resin pipe preparation step (S1),
By adding a synthetic resin pipe socket forming portion drilling step (S1 ') for forming at least one grooved filling groove 101 inward along the outer circumferential surface forming the flange socket 110 of the synthetic resin pipe 100,
Flange socket 110 is formed into the filling groove 101, the method of producing a flange socket-integrated synthetic resin tube, characterized in that to secure the plastic pipe 100 and the flange socket 110.
The method of claim 1,
The melt injection portion 300 of the melt forming step (S2) and the melt storage step (S3),
At the rear end, a feed hopper 311 is formed to receive the synthetic resin raw material, and a heating part 312 for heating at a high temperature is in contact with the outer circumferential surface, and a conveying screw 313 is formed to move the synthetic resin raw material toward the front. By forming the melt portion 310 in the form of a pipe,
Method for producing a flange socket integrated synthetic resin tube, characterized in that to form a synthetic resin melt through the melt portion (310).
The method of claim 3, wherein
The melt injection unit 300 of the melt storage step (S3) and the melt injection step (S5),
In the form of storing the synthetic resin melt to move in front of the melt portion 310, the insulating portion 312 is in contact with the outer circumferential surface in contact with the high temperature, the injection cylinder for pushing the synthetic resin melt in the front to the rear ( 322, and the front side is connected to the mold mold 200 to form a storage tank 320 having an injection nozzle 323 for injecting a synthetic resin melt into the mold mold 200.
A method for producing a flange socket-integrated synthetic resin tube, characterized in that the synthetic resin melt is stored and injected.
The method of claim 1,
Mold mold 200 of the synthetic resin tube inserting step (S4) and the synthetic resin tube separation step (S7),
An inner frame 210 having an inserting portion 212 which is in close contact with and inserted into the synthetic resin pipe 100 in front of the expansion pipe portion 211 forming the inner surface of the flange socket 110;
In the form of a pair of separate frames surrounding the outer side of the synthetic resin tube 100 and the inner frame 210, the inside of the flange pipe along the outer peripheral surface of the expansion pipe portion 211 of the synthetic resin tube 100 and the inner frame 210 A socket groove 221 having a groove size as large as (110), and having an outer frame 220 having a flange groove 222 to form a flange 111 along the rear of the socket groove 221;
By inserting the synthetic resin tube 100 in close contact with the insertion portion 212 of the inner frame 210, and wrapped around the outer frame 220 to the outside thereof,
Method for producing a flange socket-integrated synthetic resin tube, characterized in that the injection molding the flange socket 110 integrally to the synthetic resin tube 100 inserted into the mold (200).
The method of claim 1,
Before the mold mold insertion step (S4) of the synthetic resin tube,
By further carrying out the heat treatment step (S4a) of the synthetic resin tube socket forming portion for preheating the end socket forming portion of the synthetic resin tube 100,
Method of producing a flange socket-integrated synthetic resin tube, characterized in that the melt-bonded synthetic resin tube 100 and the flange socket 110 integrally.
KR1020100022178A 2010-03-12 2010-03-12 The manufacturing method of flange socket pipe KR20110103061A (en)

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Application Number Priority Date Filing Date Title
KR1020100022178A KR20110103061A (en) 2010-03-12 2010-03-12 The manufacturing method of flange socket pipe

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101274676B1 (en) * 2012-11-26 2013-06-17 주식회사 사이몬 Apparatus for forming packing groove on a plastic pipe and method of froming the groove
KR101427069B1 (en) * 2014-05-30 2014-08-07 (주)그린파이프 Apparatus for manufacturing socket pipe and one-body type socket pipe thereof
CN109386678A (en) * 2018-12-07 2019-02-26 德州炜仁供水设备有限公司 Plastics flange and its production mold for SMC water tank

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101274676B1 (en) * 2012-11-26 2013-06-17 주식회사 사이몬 Apparatus for forming packing groove on a plastic pipe and method of froming the groove
KR101427069B1 (en) * 2014-05-30 2014-08-07 (주)그린파이프 Apparatus for manufacturing socket pipe and one-body type socket pipe thereof
CN109386678A (en) * 2018-12-07 2019-02-26 德州炜仁供水设备有限公司 Plastics flange and its production mold for SMC water tank

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