KR102374691B1 - A method of manufacturing a socket flange and an end-ketching flange of a resin tube molding frame, and a resin tube molded using the same - Google Patents

Abstract

The present invention relates to a method for manufacturing a socket flange and an end quenching flange of a resin pipe molding frame and a resin pipe molded and manufactured using the same. According to the present invention, when assembled with a resin pipe, the watertightness can be maintained at the inclined surface and the end in a double manner by first and second water-repellent packings and a band-shaped packing, thereby providing an excellent watertightness effect by processing a square groove on a socket body and a quenching body, which are integrally molded by a mold, inserting and fixing a circular protruding ring into the square groove to manufacture a socket flange and an end quenching flange, assembling the socket flange and the end quenching flange at both ends of a molding frame body to assemble a resin pipe molding frame, pouring resin concrete therein when the resin pipe is molded and manufactured to insert the first and second water-repellent packings to protrude into first and second molding grooves molded by the circular protruding ring of the socket flange and the end quenching flange, and inserting the band-shaped packing into a stepped groove formed by inner and outer hanging ends formed during molding of the quenching body and the molding frame body.

Description

A method of manufacturing a socket flange and an end-ketching flange of a resin tube molding frame, and a resin tube molded using the same}

The present invention relates to a method for manufacturing a socket flange and an end capping flange of a resin pipe forming mold, and a resin pipe molded using the same, and in detail, a square groove is processed in the socket flange and the end capping flange molded in one piece, After fixing the circular protrusion ring, assemble it on both ends of the mold body, and assemble the resin tube mold, then pour the resin concrete inside to form the resin tube. It is configured to maintain watertightness when assembling the resin tube by inserting the first and second water seals to protrude into the first and second molding grooves formed by the

In general, Resin Jacking Pipe Concrete uses acid-resistant unsaturated polyester as a binder, mixes aggregate, filler, and reinforcing bar network, and puts it into a mold installed in a centrifuge to form the pipe. Compared to the pipe, it has superior compression, bending, and tensile strength, making the pipe thinner and lighter, making it possible to draft a product with a smooth inner surface.

As a prior art related to such a propulsion pipe, by forming male and female screws at both ends of the propulsion pipe in Domestic Utility Model Registration No. 20-0296434, many are connected by screw coupling, improving the watertightness and connectivity of the propulsion pipe. It is disclosed with respect to the propulsion pipe of the semi-shield construction method and the small-diameter pipe propulsion method, and in Korean Patent Publication No. 10-2003-0095652, the propulsion pipe has an opening on the side, and a cover is attached to the opening so as to be detachable. As a result, by press-fitting a number of propulsion pipes by the pipe propulsion method to complete the tunnel and then connect cables or additionally install branches, it reduces work time and costs by excavating only a minimum area in the minimum work space required and It is disclosed for a propulsion pipe for the pipe propulsion method, which reduces civil complaints in the neighboring work area and has the effect of not affecting the propulsion pipe buried underground according to the work. By applying silicone to the threads formed at the ends, the male and female screws formed at both ends of each propulsion tube are firmly bonded and combined, and the effect of simple construction is provided because the propelling is carried out using the pressure of the combined propulsion tube. became

However, these prior technologies are propelled into the ground without excavation work by a propulsion device, and are maintained watertight by inserting a finishing sealing agent and water-proof packing in the part where the pipeline is connected and installed, but it is buried underground until the propulsion pipe is replaced. It has a problem that it is not easy to endure for a long time.

Utility model registration No. 20-0296434 (December 14, 2002) Patent Publication No. 10-2003-0095652 (2003.12.24.) Registered Patent No. 10-1701849 (2017.01.25.)

The present invention has been devised to solve the problems of the prior art, and an object of the present invention is to process a square concave groove in a socket flange and an end-quetting flange molded in one piece, fix a circular protruding ring thereto, and then to form a mold body After assembling the resin tube forming frame by assembling it at both ends, pouring resin concrete inside to form the resin tube, the first in the first and second forming grooves formed by the circular protruding rings of the socket flange and end capping flange. , To provide a method for manufacturing a socket flange and an end capping flange of a resin tube molding frame configured to maintain watertightness when assembling a resin tube by inserting the water seal to protrude.

The problem solving means of the present invention for achieving the above object is a molding frame body assembled in a cylindrical shape and molded so as to form an expansion part on one side; a socket flange for separably blocking as a fastening means at the end of the pipe expansion part of the mold body; In the method of manufacturing a resin tube forming frame comprising an end-quenching flange for separably blocking the other end of the forming frame by a fastening means, the socket flange includes: an inclined protrusion having a through hole in the central region; forming and manufacturing the socket body as a mold so that a circular plate having an inclined annular groove at the end edge is integrally formed; Placing the socket body molded and manufactured in one piece on a processing machine, and maintaining a circular shape in an inclined protrusion outside the through hole to process and mold a square concave groove having a square cross section; manufacturing and processing a circular protruding ring having a rectangular cross section so that it can be coupled to the rectangular concave groove; coupling the circular protrusion ring to the square concave groove to protrude; It is manufactured and molded in the step of fixing the circular protrusion ring coupled to protrude in the square concave groove,

The end catching flange comprises the steps of: forming and manufacturing a catching body as a mold so that a through hole is formed in a central region and inner and outer engaging ends are formed in two stages in an outer region of the through hole;

processing and molding the rectangular concave groove having a rectangular cross section by mounting the ketching body integrally molded and manufactured on a processing machine, and maintaining a circular shape at the inner engaging end of the outside of the through hole; manufacturing and processing a circular protruding ring having a rectangular cross section so that it can be coupled to the rectangular concave groove; coupling the circular protrusion ring to the square concave groove to protrude; It is manufactured and molded in the step of fixing a circular protrusion ring that is protrudedly coupled to the square concave groove, and is assembled into a cylindrical shape and fastened to both ends of the molded body to form an expanded pipe portion on one side to mold and manufacture a resin tube. do it with

According to the present invention, a square groove is machined on the socket body and the ketching body that are integrally molded as a mold, and then a circular protrusion ring is inserted and fixed into the square groove to produce a socket flange and an end catching flange, and then assembled at both ends of the forming frame body to assemble a resin tube forming mold, and pour resin concrete inside to form a resin tube, in the first and second molding grooves formed by the circular protruding rings of the socket flange and end capping flange, the first and second indexes Insert the packing to protrude and insert the band packing into the stepped groove formed between the inner and outer locking ends and the mold body formed during the molding and manufacturing of the ketching body. It is possible to maintain the watertightness of the inclined surface and the end in a double layer, so that an excellent effect of watertightness is provided.

1 is a block diagram showing the structure of a mold for forming a resin tube for molding a resin tube according to the present invention.
Figure 2 is a block diagram showing the manufacturing process for the socket flange of the resin tube forming mold according to the present invention, a is a state diagram for molding and manufacturing the socket body as a mold, b is a state diagram of processing and molding a square concave groove on the socket body and c is a state diagram in which a circular protruding ring having a rectangular cross section is processed and manufactured, and d is a state diagram in which a socket flange is manufactured by coupling and fixing the circular protruding ring to the rectangular concave groove of the socket body.
3 is a block diagram showing the manufacturing process for the end catching socket of the resin tube forming frame according to the present invention, a is a state diagram of molding and manufacturing the catching body as a mold, b is the processing and molding of a square concave groove on the ketching body It is a state diagram, c is a state diagram in which a circular protruding ring having a rectangular cross section is processed and manufactured, and d is a state diagram in which an end catching flange is manufactured by coupling and fixing the circular protruding ring to the rectangular concave groove of the catching body.
4 is a block diagram showing a process for forming a resin tube using a resin tube forming mold according to the present invention, a is a state diagram of assembling a socket flange and a catching body to a forming frame body, b is a resin inside It is a state diagram of pouring concrete to form a resin tube, c is a state diagram of combining the first water seal packing and a strip packing to a molded resin tube, and d is a configuration diagram showing a state in which watertightness is maintained by combining the resin tube. .
5 is a block diagram showing a process for forming a resin tube using a resin tube forming mold according to the present invention, a is a state diagram of assembling a socket body and an end capping flange to a forming frame body, b is an inside It is a state diagram of molding a resin tube by pouring resin concrete, c is a state diagram of combining the second water seal packing and a strip packing to a molded resin tube, and d is a configuration diagram showing a state in which watertightness is maintained by combining the resin tube am.

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

1 of the accompanying drawings is a configuration diagram showing the structure of a mold for forming a resin tube for forming a resin tube according to the present invention.

As shown, the resin tube forming mold according to the present invention is assembled in a cylindrical shape by maintaining a semi-circular shape, and a forming frame body 10 having an expanded pipe portion 12 formed on one side thereof; a socket flange 30 for separably blocking the expansion pipe 12 end of the molding frame body 10 by a fastening means 20; The other end of the forming frame body (10) is made of an end-quetting flange (40) for separably blocking by means of a fastening means (20).

The socket flange manufacturing method configured in this way includes a circular plate 32 having an inclined protrusion 31 having a through hole 31a formed in the central region and an inclined annular recess 32a at the end edge of the inclined protrusion 31 integrally. forming and manufacturing the socket body 34 as a mold to be formed; A step of processing and molding a rectangular concave groove (35) having a rectangular cross section by mounting the socket body (34) molded in one piece on a processing machine such as a lathe, and maintaining a circular shape on the inclined protrusion (31) outside the through hole (31a). Wow; manufacturing and processing a circular protruding ring 36 having a square cross section so that it can be coupled to the square concave groove 35; coupling the circular protrusion ring 36 to the square concave groove 35 to protrude; It consists of a step of fixing the circular protrusion ring 36 protrudingly coupled to the square concave groove 35 by welding.

When explaining the manufacturing process of the socket flange in this way, as shown in FIG. 2a, the male and female molds made in the shape of the product are put inside the flask 2, and then molten iron is poured into the mold to have a through hole 31a inside. The socket body 34 in which the inclined protrusion 31 and the circular plate 32 having the inclined annular concave groove 32a at the end edge of the inclined protrusion 31 are integrally formed is integrally formed.

Next, as shown in FIG. 2b, the socket body 34 manufactured integrally is mounted on a processing machine such as a lathe, and then, as a processing machine, a circular shape is maintained on the inclined protrusion 31 on the outside of the through hole 31a to form a square. A rectangular concave groove 35 having a cross-section is processed and molded.

In this state, as shown in FIG. 2c , a separate circular protruding ring 36 having a square cross-section with a size capable of being coupled to the square concave groove 35 is fabricated.

Next, as shown in FIG. 2D, the circular protrusion ring 36 having a rectangular cross section is protrudedly coupled to the rectangular concave groove 35, and then the circular protruding ring 36 protrudingly coupled to the rectangular concave groove 35 is welded. After fixing, the weld bead is removed by grinding.

In the method for manufacturing the end-quetting flange, the through-hole 41a is formed in the central region, and the catching body 43 is molded so that the inner and outer engaging ends 42a and 42b are formed in two stages in the outer region of the through-hole 41a. Forming and manufacturing as a; The integrally molded and manufactured ketching body 43 is mounted on a processing machine such as a lathe, and the circular shape is maintained at the inner locking end 42a outside the through hole 41a to process and mold a square concave groove 44 having a square cross section. step; manufacturing and processing a circular protruding ring 45 having a rectangular cross section so that it can be coupled to the rectangular concave groove 44; coupling the circular protrusion ring 45 to the square concave groove 44 to protrude; It consists of a step of fixing the circular protrusion ring 45 coupled to protrude to the square concave groove 44 by welding.

As described above, the molding manufacturing process of the end capping flange is put in the male and female molds made in the shape of the product as shown in Fig. 3a inside the flask (2), then pouring molten iron into the mold, through holes in the center area ( 41a) is formed, and the catching body 43 is integrally molded and manufactured so that the inner and outer engaging ends 42a and 42b are formed in two stages in the outer region of the through hole 41a.

Next, as shown in FIG. 3B, the integrally molded and manufactured catching body 43 is mounted on a processing machine such as a lathe, and then, as a processing machine, a square concave groove having a square cross section by maintaining a circular shape at the inner locking end 42a. (44) is processed and molded.

In this state, as in FIG. 3c , a separate circular protruding ring 45 having a rectangular cross section with a size capable of being coupled to the rectangular concave groove 44 is processed and manufactured.

Next, as shown in FIG. 3D, the circular protrusion ring 45 having a square cross section is coupled to the square concave groove 44 so that the upper part thereof protrudes, and then the circular protrusion ring 45 coupled to protrude into the square concave groove 44 is formed. After fixing by welding, the weld bead is removed by grinding.

The process of forming the resin tube 50 by assembling the socket body 34 of the socket flange 30 and the capping body 43 of the end capping flange 40 to be molded and manufactured in this way to the mold body 10 is described. decide to do

First, as in FIG. 4a, the inclined annular groove (32a) formed in the circular plate 32 and the inclined protrusion 31 of the socket body 34 at the end of the expansion tube 12 of the forming frame body 10 made of a cylindrical shape. After seating, the socket flange 30 is detachably assembled as the fastening means 20 .

Next, the inner locking end 42a of the catching body 43 is closely attached to the other end of the forming frame body 10 , and the catching body 43 is detachably assembled as a fastening means 20 , followed by molding. A wire mesh member 11 manufactured in a cylindrical shape is inserted and fixed to the inner circumferential surface of the frame body 10 and the expansion tube 12 .

In this state, as shown in Figure 4b, the resin concrete injection device (4) in which the resin concrete composed of an unsaturated polyester resin with strong chemical resistance, aggregate (sand, gravel), fly ash and calcium carbonate is stored inside the molding frame body. (10) It flows into the interior and pours resin concrete.

At the same time, by operating the centrifugal force generating device 6, the resin concrete poured as the forming frame body 10 is rotated is a wire mesh member 11 between the socket flange 30 and the end capping flange 40 by centrifugal force. It is poured into the area with an appropriate thickness.

When the pouring of the resin concrete is completed during the set time as described above, the resin concrete input device 4 moves to the outside, and coating operation is performed on the cast resin concrete after 20 to 30 minutes.

After that, after a curing time of about 1 hour, the fastening force of the fastening means 20 at both ends of the forming frame body 10 is released, and then the socket flange 30 and the end capping flange 40 are separated, and in a semicircular shape. When the assembled mold body 10 is separated, the resin tube 50 is molded and manufactured.

That is, as shown in Fig. 4c, the through hole 51a is formed by the inner diameter of the forming frame body 10 and the through holes 31a and 41a of the socket flange 30 and the catching body 43, and the forming frame body. (10) by the inclined protrusion part 31 of the extension part 12 and the socket flange 30, the inclined step concave groove part 52 on the outside of the through hole 51a and the extension surface 53 on the outer circumferential surface are formed, , By the circular protrusion ring 36 coupled to the square concave groove 35 of the inclined protrusion 31 and fixed, a circular first forming concave groove 54 is formed in the inclined step concave groove 52 .

In addition, between the inner and outer engaging ends (42a, 42b) of the end capping flange (40) and the other inner peripheral surface of the forming frame body (10), a stepped groove (56) is formed on the outer peripheral surface.

In the resin tube molded and manufactured in this way, the first water-made packing 60 having a square, circular or elliptical cross-section is inserted into the first molding recess 54 formed in the inclined step recessed recess 52 to protrude outward, and the step difference A band-shaped packing 61 is inserted into the groove 56 .

In this process, several resin tubes 50, 50A... are molded and manufactured, and then the resin tubes 50 and 50A are combined to maintain watertightness.

That is, when the band-shaped packing 61 inserted into the stepped concave groove 56 of the resin tube 50A is inserted into the inclined stepped concave groove 52 of the resin tube 50 as shown in FIG. 4D, the resin tube 50 ) on the inclined surface of the inclined step recessed recess 52, the band-shaped packing 61 is pressed while watertightness is maintained, and the end of the resin tube 50A is formed in the inclined step recessed recess 52 of the resin tube 50 The watertightness is maintained double by being compressed in the first water-resistant packing 60 inserted to protrude into the first molding groove 54 .

A process of forming the resin tube 50 by assembling the socket body 34 and the end capping flange 40 molded and manufactured in this way to the mold body 10 will be described.

First, as in FIG. 5a, the inclined annular groove (32a) formed in the circular plate 32 and the inclined protrusion 31 of the socket body 34 at the end of the expansion tube 12 of the forming frame body 10 made of a cylindrical shape. After seating, the socket body 34 is detachably assembled by the fastening means 20 .

Next, the inner locking end 42a of the catching body 43 is closely attached to the other end of the forming frame body 10 , and the catching body 43 is detachably assembled as a fastening means 20 , followed by molding. A wire mesh member 11 manufactured in a cylindrical shape is inserted and fixed to the inner circumferential surface of the frame body 10 and the expansion tube 12 .

In this state, as shown in Figure 5b, the resin concrete injection device (4) in which the resin concrete composed of an unsaturated polyester resin strong in chemical resistance, aggregate (sand, gravel), fly ash and calcium carbonate is stored inside the molding frame body. (10) It flows into the interior and pours resin concrete.

At the same time, by operating the centrifugal force generating device 6, the resin concrete poured as the forming frame body 10 is rotated is a wire mesh member 11 between the socket flange 30 and the end capping flange 40 by centrifugal force. It is poured into the area with an appropriate thickness.

When the pouring of the resin concrete is completed during the set time as described above, the resin concrete input device 4 moves to the outside, and coating operation is performed on the cast resin concrete after 20 to 30 minutes.

Thereafter, after a curing time of about 1 hour, the fastening force of the fastening means 20 at both ends of the forming frame body 10 is released, and then the socket body 34 and the end capping flange 40 are separated, and in a semicircular shape. When the assembled mold body 10 is separated, the resin tube 50 is molded and manufactured.

That is, as shown in Fig. 5c, the through hole 51a is formed by the inner diameter of the forming die body 10 and the through holes 31a and 41a of the socket body 34 and the end capping flange 40, and the forming die is formed. By the expanded pipe portion 12 of the body 10 and the inclined protrusion 31 of the socket flange 30, the inclined stepped concave groove 52 and the outer circumferential surface 53 of the through hole 51a are formed. do.

In addition, between the inner and outer engaging ends 42a and 42b of the end capping flange 40 and the other inner circumferential surface of the forming frame body 10, a stepped groove 56 is formed on the outer circumferential surface, and at the same time, the end catching flange (40) By the circular protrusion ring 45 coupled to protrude to the square concave groove 44 formed in the inner engaging end (42a), the second shaping concave groove 57 is formed at the end.

The resin tube molded and manufactured in this way has a second water-resistant packing 62 having a square, circular or elliptical cross section in the first molding recess 54 formed at the inner locking end 42a of the end capping flange 40 to the outside. It is inserted to protrude, and the belt-shaped packing 61 is inserted into the stepped recessed groove 56 .

In this process, several resin tubes 50, 50A... are molded and manufactured, and then the resin tubes 50 and 50A are combined to maintain watertightness.

That is, when the band-shaped packing 61 inserted into the stepped concave groove 56 of the resin tube 50A is inserted into the inclined stepped concave groove 52 of the resin tube 50 as shown in FIG. 5D, the resin tube 50 ) on the inclined surface of the inclined step concave groove portion 52, the belt-shaped packing 61 is pressed while watertightness is maintained, and at the same time, the second resin packing 62 at the end of the resin tube 50A is formed by the inclined step of the resin tube 50. It is pressed into the recessed portion 52 to maintain double watertightness.

On the other hand, the method for manufacturing the socket flange and end-quenching flange of the resin tube molding frame according to the present invention described above and the resin tube molded and manufactured using the same are not limited to the above-described embodiment, but are claimed in the claims below. Without departing from the gist of the present invention, it will be said that the technical idea exists to the extent that various modifications can be implemented by anyone having ordinary knowledge in the field to which the present invention belongs.

10: molding frame body 23: pipe expansion part
30: socket flange 31: inclined protrusion
31a, 41a: through hole 34: socket body
35,44: square groove 36,45: circular protrusion ring
40: end capping flange 42a, 42b: inner and outer engaging ends
43: ketching body 50: resin tube
51a: through hole 52: inclined step concave groove
54,57: first and second shaping grooves 56: stepped grooves
60,62: 1st and 2nd water sealant packing 61: Strip packing

Claims (4)

A molding frame body assembled in a cylindrical shape and molded so as to form an expansion part on one side; a socket flange for separably blocking the end of the expansion pipe of the mold body as a fastening means; In the method for manufacturing a resin tube forming frame comprising an end-quetting flange for separably blocking the other end of the forming frame body as a fastening means,
The socket flange is
forming and manufacturing the socket body as a mold so that a circular plate having an inclined protrusion having a through hole formed in a central region and an inclined annular groove at an end edge of the inclined protrusion is integrally formed;
Placing the socket body molded and manufactured in one piece on a processing machine, and maintaining a circular shape in an inclined protrusion outside the through hole to process and mold a square concave groove having a square cross section;
manufacturing and processing a circular protruding ring having a rectangular cross section so that it can be coupled to the rectangular concave groove;
coupling the circular protrusion ring to the square concave groove to protrude;
It is manufactured and molded in the step of fixing the circular protrusion ring coupled to protrude in the square concave groove,
The end capping flange is
forming and manufacturing the catching body as a mold so that a through hole is formed in the central region and inner and outer engaging ends are formed in two stages in an outer region of the through hole;
processing and molding a rectangular concave groove having a rectangular cross section by mounting the ketching body integrally molded and manufactured on a processing machine, and maintaining a circular shape at the inner engaging end of the outside of the through hole;
manufacturing and processing a circular protruding ring having a rectangular cross section so that it can be coupled to the rectangular concave groove;
coupling the circular protrusion ring to the square concave groove to protrude;
It is manufactured and molded in the step of fixing a circular protrusion ring that is protrudedly coupled to the square concave groove,
A resin tube forming mold manufacturing method, characterized in that the resin tube is molded and manufactured by fastening it to both ends of the molding mold body, which is assembled in a cylindrical shape and molded to form a pipe expansion part on one side. The resin tube according to claim 1,
A through hole 51a is formed by the inner diameter of the forming frame body 10 and the through holes 31a and 41a of the socket flange 30 and the end capping flange 40,
By the expansion pipe 12 of the forming frame body 10 and the inclined protrusion 31 of the socket flange 30, the inclined step recessed recess 52 to the outside of the through hole 51a and the expansion face 53 on the outer circumferential surface ) is formed,
A first forming recess 54 is formed in the inclined step recessed recess 52 by the circular protruding ring 36 coupled to and fixed to the square recess 35 of the inclined protruding part 31,
A step recessed groove 56 is formed on the outer circumferential surface between the inner and outer engaging ends 42a and 42b of the end capping flange 40 and the other inner circumferential surface of the forming frame body 10,
Socket flange and end of the resin tube forming frame, characterized in that the second forming concave groove 57 is formed at the end by the circular protruding ring 45 fixed to the square concave groove 44 of the inner locking end 42a Resin tube molded and manufactured by the method of producing a ketching flange. The method of claim 2, wherein the first and second molding grooves 54 and 57, the first and second waterproof packings 60 and 62 are inserted to protrude,
The strip-shaped packing 61 is inserted into the stepped groove 56 to protrude, and the socket flange and end capping flange manufacturing method of the resin tube molding frame, characterized in that double watertightness is maintained when assembling the resin tube. made resin tube. The method according to claim 3, wherein the first and second water-resistant packings (60, 62) are
A resin tube molded and manufactured by a method for manufacturing a socket flange and an end-quetting flange of a resin tube forming frame, characterized in that it has a square, circular or oval cross section.

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