KR102033094B1 - Adapter forming apparatus and process of plastic pipe and plastic pipe utilizing the adapter forming process - Google Patents

Abstract

The present invention discloses an apparatus for forming a synthetic resin pipe integrated with a flange, a method of manufacturing the synthetic resin pipe integrated with the flange by using the apparatus, and the synthetic resin pipe manufactured by the method. The apparatus of the present invention includes: a base table; a first synthetic resin pipe heating part which is installed in one side of the base table to heat a flange forming part of a forming-completed synthetic resin pipe; a second synthetic resin pipe heating part which is adjacent to the first synthetic resin pipe heating part to secondly heat the flange forming part heated by the first synthetic resin pipe heating part; a first holding unit which is installed adjacent to the second synthetic resin pipe heating part to form a flange in the synthetic resin pipe by using a heated flange forming part, and is provided for holding a side adjacent to the flange forming part; a lower mold which is installed adjacent to the first holding unit; an upper mold which is installed in an upper side of the lower mold and is combined with the lower mold by a first elevating unit to dividingly form a rear surface and an outer circumferential surface of the flange to be formed; a movable mold which includes an insertion core coupled with the combined upper and lower molds and inserted into the heated flange forming part and a cover part installed on an outer circumferential surface thereof to divide a cavity for forming the flange from the upper and lower molds; and a flange forming unit which includes a forward and backward transfer part moving the movable mold forward and backward. The apparatus and method according to the present invention can improve durability of the synthetic resin pipe by enabling the flange to be integrally formed on an end portion of the synthetic resin pipe, and particularly, can promote productivity improvement by continuously heating the flange forming part of the synthetic resin pipe in multi-stages and enabling the flange to be formed in the heated flange forming part.

Description

Synthetic resin pipe integrated flange forming apparatus and manufacturing method using the same and synthetic resin pipe manufactured by the manufacturing method {Adapter forming apparatus and process of plastic pipe and plastic pipe utilizing the adapter forming process}

The present invention relates to an integrated flange forming apparatus and a manufacturing method of the synthetic resin tube, and more particularly, to a synthetic resin tube integral flange forming apparatus and its manufacturing method for forming a flange for connecting it to the synthetic resin tube and a method of manufacturing the same It relates to a synthetic resin tube produced by.

In general, the pipe (PIPE) is used as a means for transferring the fluid. These tubes are classified into metal tubes and synthetic resin tubes according to their materials. Synthetic resin pipes have a lower strength than metal pipes, but they have excellent durability, wear resistance, light weight, and are easily used for transportation and construction. The synthetic resin tube is usually extruded in a hollow form through the nozzle of the extruder, and the extruded portion is exposed to air and cooled to obtain a cured product. The synthetic resin tube obtained through such a process needs sufficient time for formability of the part extruded through the nozzle.

In addition, in consideration of moldability and wear resistance, a structure in which an outer hollow member is laminated on the outer circumference of the hollow member has been proposed.

In order to connect the tubes manufactured by the synthetic resin manufactured as described above, the flange for the connection in the state of the molding of the tube made of synthetic resin is made or a separate connection means is used.

Republic of Korea Patent Publication No. 2009-0117285 is a synthetic resin pipe connector is published, Republic of Korea Patent Publication No. 2004-0034647 has a synthetic resin pipe having a connector. The published synthetic resin pie is configured so that a separate connector is coupled to one side of the cut portion by a coupling means. The coupling means is configured such that the O-ring is inserted into the outer periphery of the pipe cut at right angles, the coupling guide formed in the connector is configured to be inserted into the outer periphery of the pipe into which the O-ring is inserted, and the coupling guide is cooled and contracted. It is configured to be pressed against the outer periphery of the pipe by.

In addition, the Republic of Korea Patent Publication No. 2004-0034646 and the Republic of Korea Patent Publication No. 2004-0034645 discloses a composite pipe having a connector.

Korean Unexamined Patent Publication No. 2009-0115993 discloses a connection member integrated synthetic resin tube and a manufacturing apparatus thereof.

Synthetic resin pipes are conventionally fused to each other after the manufacture of the pipes to complete the interconnection to each other, or by using a separate connection device because the mutual fusion or using a separate connection device, so the flange portion in the synthetic resin pipe It takes a lot of work maneuvering to fix the productivity can not be improved, there is a problem that can not improve the product value of the synthetic resin pipe.

Republic of Korea Patent Publication No. 2009-0117285 Republic of Korea Patent Publication No. 2004-0034646 Republic of Korea Patent Publication No. 2009-0115993 Republic of Korea Patent Publication No. 2004-0034647

The present invention is to solve the problems as described above, synthetic resin pipe integrated flange forming apparatus and a manufacturing method using the same for forming the flange integrally at both ends of the synthetic resin pipe is completed by extrusion molding, and the manufacturing method The purpose is to provide a synthetic resin tube.

Another object of the present invention can improve the productivity of the flange-integrated synthetic resin tube, and since the flange portion is integrally formed without being fused at the end of the synthetic resin tube, structural strength and durability can be improved, and the synthetic resin tube integral flange forming device And to provide a manufacturing method using the same, and a synthetic resin tube produced by the manufacturing method.

The molding apparatus of the synthetic resin tube integrated flange of the present invention for achieving the above object is a base table, a first synthetic resin tube heating unit for heating the flange molded part of the synthetic resin tube is formed on one side of the base table and the molding, and the A second synthetic resin tube heating portion for secondary heating of the flange molding portion adjacent to the first synthetic resin tube heating portion and heated by the first synthetic resin tube heating portion;

A first gripping unit for forming a flange in a synthetic resin pipe by using a heated flange molding part installed adjacent to the second synthetic resin pipe heating part, the first gripping unit for gripping the side adjacent to the flange forming part, and the first gripping part. A lower mold installed adjacent to the unit and an upper mold installed on the upper side of the lower mold and configured to partition and form a rear surface and an outer circumferential surface of the flange to be molded and molded by the first lifting unit;

A movable mold having an insert core coupled to a molded upper and lower mold and inserted into a heated flange molding portion, a movable portion provided on an outer circumferential surface of the insert core and partitioning a cavity for forming an upper and lower mold and a flange, and the movable mold; And a flange forming unit having a forward and backward forwarding unit for moving forward and backward.

In the present invention, the base table is a synthetic resin pipe transfer unit for moving the synthetic resin tube from the first synthetic resin heating portion to the second synthetic resin heating portion and the flange forming portion side, and is installed on the front surface of the flange forming unit length of the synthetic resin tube First and second pressure supporting parts for supporting the synthetic resin pipes which are respectively installed on the front surface of the synthetic resin pipe forward and backward conveying unit for conveying in the direction, and are respectively heated on the front surface of the first synthetic resin pipe heating unit and the second synthetic resin pipe heating unit. It is provided.

The synthetic resin pipe transfer unit is a guide rail installed in a direction perpendicular to the synthetic resin pipe in the base frame, a transfer member which is moved in the left and right directions along the guide rail by the front and rear swing cylinders, and is installed in the transfer member and the synthetic resin pipe It is provided with a pipe support that is installed on the lifting cylinder for lifting.

Synthetic resin tube manufacturing method using a synthetic resin tube integrated flange molding apparatus according to the present invention for achieving the above object, a transfer step for transferring the synthetic resin tube to the base table, and heating the flange molding portion of the synthetic resin tube first synthetic resin tube A first flange forming addition heating step of heating the flange forming portion while inserting the first insert into the heating portion and rotating the synthetic resin tube;

A second heating part of the synthetic resin pipe flange forming part by transferring the flange molding part in which the primary heating is completed to the second synthetic resin pipe heating part by the first flange forming heating step, and inserting the second synthetic resin pipe heating part into the second insertion hole of the second synthetic resin pipe heating part; Flange heating step,

After moving the synthetic resin pipe heated by the heating step of the second flange forming part to the front of the flange forming unit and placing the flange heating portion between the upper mold and the lower mold of the flange forming unit, and then mold the upper and lower molds In addition, the movable mold having a cover portion for partitioning the upper and lower molds and the cavity for forming the flange is inserted into the hollow portion of the synthetic resin tube supported by the upper and lower molds, and the flange is integrated at the end of the synthetic resin tube by the forward and backward transfer unit. And a flange forming step of forming.

In the present invention, the flange forming step is a synthetic resin pipe gripping to hold the synthetic resin pipe by the first gripping unit for preventing the synthetic resin pipe inserted into the mutually molded upper and lower molds to be moved by the movable mold for forming the flange With steps.

The integrated flange forming apparatus and the manufacturing method of the synthetic resin tube according to the present invention can be formed integrally with the flange at the end of the synthetic resin tube can improve the durability of the synthetic resin tube formed in the synthetic resin, in particular, the continuous continuous flange forming part of the synthetic resin tube By heating in multiple stages and forming a flange in the heated flange forming portion, thereby improving productivity.

1 is a perspective view showing a synthetic resin tube integrally formed with a flange according to the present invention,
Figure 2 is a partial ablation perspective view showing a state in which the flange is integrally formed in the synthetic resin tube shown in FIG.
3 is a cross-sectional view of the flange formed integrally with the synthetic resin tube shown in FIG.
Figure 4 is a perspective view showing a synthetic resin integrated flange forming apparatus according to the present invention,
5 is a perspective view showing an extract of the first synthetic resin tube rotating part shown in FIG.
6 is a perspective view showing the front, reverse transfer unit shown in Figure 4,
7 is a perspective view of the synthetic resin pipe transfer unit,
8 is a partial ablation perspective view showing the first or second synthetic resin tube heating portion,
9 is a perspective view showing an extract of the flange forming unit shown in FIG.
Figure 10 is a block diagram showing a method for forming a flange on the end of the synthetic resin tube by a synthetic resin tube integral flange molding apparatus according to the present invention.

By using the integrated flange forming apparatus of the synthetic resin tube according to the present invention that the flange can be integrally formed using the synthetic resin tube at the end of the synthetic resin tube, an embodiment is shown in Figures 4 to 9.

The integrated flange forming apparatus of the synthetic resin tube according to the present invention, as shown in Figures 1 and 3 to produce a synthetic resin tube 200, the flange portion 210 is integrated at both ends, that is, the end of the synthetic resin tube completed molding After the multi-stage heating, it is for forming the flange (210). An airtight holding part 220 may be formed on the front surface of the flange 210 integrally formed with the synthetic resin pipe to increase sealing and airtightness when interconnected.

The airtight holding portion 220 formed on the front surface of the flange 210 has a predetermined width in the circumferential direction with respect to the center of the hollow portion of the synthetic resin pipe on the front surface of the flange 210 as shown in FIGS. 2 and 3. The first sealing portion 221 of the annular protruding shape is formed. In addition, grooves 222 are formed in the first sealing part 221 for insertion of packings in the circumferential direction, and sealing protrusions 223 for close contact with the sealing part are continuous or discontinuous on the inner circumferential surface of the groove 222. A plurality is formed.

A sealing liquid injection part 224 is formed outside the first sealing part 221 to surround the first sealing part. The flange portion 210 is formed with an injection hole 225 for injecting a sealing liquid into the sealing liquid injection portion 124.

Synthetic resin tube for molding the flange-integrated synthetic resin tube according to the present invention configured as described above 10 forming apparatus of the integral flange is provided with a base table 20, is installed on one side of the base table 20 synthetic resin tube At the end of the 200, that is, the side adjacent to the first synthetic resin tube heating portion 30 for heating the flange molding portion, the first heating the flange molded portion made by the first synthetic resin tube heating portion 30 to the secondary heating Second synthetic resin tube heating unit 40 is installed. In addition, a first gripping unit 50 for gripping the synthetic resin pipe 200 in which the flange molding part 201 is heated is installed on the side adjacent to the second synthetic resin pipe heating part 40, and coaxially, that is, the synthetic resin pipe ( The flange forming unit 70 is provided on the side adjacent to the first gripping unit 50 coaxially with the axis in the longitudinal direction of the 200. On one side of the base table 20, the first and second synthetic resin tube heating parts 30 and 40 and the flange forming unit 70 are formed in an inline shape.

The synthetic resin tube integrated flange forming apparatus according to the present invention configured as described above will be described in more detail for each component as follows.

The base table 20 supports the first and second synthetic resin tube heating parts 30 and 40 and the flange forming unit 70 and also supports the synthetic resin tube 200. Is installed on the front of the first and second synthetic resin tube heating unit 20, 30, the first and second synthetic resin tube rotation unit 90, 100 for rotating it is installed, the flange of the unit 70 Forward and backward transport unit 110 for advancing forward and backward the synthetic resin pipe 200 is installed on the front.

The base table 20 may move the synthetic resin tube 200 from the first synthetic resin tube heating unit 30 to the second synthetic resin tube heating unit 40, and the second synthetic resin tube heating unit 40 may be used. Synthetic resin pipe transfer unit 130 for moving from the flange forming unit 70 is installed.

The first synthetic resin tube rotating part 90 is provided with a first support bracket 91 on the frame 21 of the base table 20, and the first support bracket 91 has a pair of first rotating rollers 93. ) Is rotatably installed. The first rotating rollers 93 are rotatably installed by a first motor 94 having a speed reducer installed on the first support bracket 91. In addition, the base frame 21 adjacent thereto is provided with a pair of first auxiliary rotating rollers 95 for rotatably supporting the lower surface of the synthetic resin tube 200.

The second synthetic resin tube rotating unit 100 is installed on the base table 20 on the front side of the second synthetic resin tube heating unit 30 and has the same structure as the first synthetic resin tube rotating unit 90.

And the forward and backward transfer unit 110 is a pair of pillow blocks 112 to the second support bracket 111 is installed on the base frame 21 forming the base table 20 as shown in FIG. The forward and backward rollers 113 are installed to move the synthetic resin pipe 200 forward and backward, and the forward and backward rollers 113 are rotated by the second motor 114 installed on the second support bracket 111. . The installation direction of the forward and backward roller 113 is installed in a direction perpendicular to the longitudinal direction of the synthetic resin pipe (200). In addition, the base frame 21 on the side adjacent thereto is provided with an auxiliary forward and backward roller 115 in the longitudinal direction of the synthetic resin pipe 200.

 And the synthetic resin pipe transfer unit 130 is installed on the base table 20 is a guide rail 131 is installed in a direction perpendicular to the longitudinal direction of the synthetic resin pipe 200 on the lower side of the base table 20 and the The synthetic resin pipe 200 is moved up and down by the transfer member 133 forward and backward by the forward and backward cylinder 132 along the guide rail 131, and the lift cylinder 134 installed on the transfer member 133. It includes a lifting member provided with a tube support portion 135 for supporting. The synthetic resin pipe transfer unit 130 is not limited by the above-described embodiment, as long as it can be a structure capable of transferring the synthetic resin pipe to each processing position. And both sides of the base table 20 is preferably inclined surface is installed so that the finished synthetic resin tube can be discharged along the inclined surface.

Meanwhile, as illustrated in FIG. 8, the first synthetic resin tube heating unit 30 may include a flange forming unit 201 of the synthetic resin tube 200 having a first guide rail 31 disposed on the front surface of the first synthetic resin tube rotating unit 90. ) Is installed, and is installed so as to be able to move forward and backward along the first guide rail 31, and includes a first heating body 32. The first guide rail 31 may be formed of a guide rod.

The first insertion part 33 of the synthetic resin heating tube 200 is provided on the front surface of the first heating body 32, and the flange forming part 201 is heated on the side adjacent to the inner circumferential surface of the first insertion part 33. The first heating heater 34 is installed to. In addition, a first heating heater rod 35 for heating the inside of the synthetic resin pipe 200 is installed at the central portion of the first inserting portion 32.

The first heating body 32 is connected to a rod of the first forward and backward cylinder 36 that moves forward and backward along the first guide rail 31. The first forward and backward cylinder 36 may be supported by a base frame extending from the table.

 In addition, the front side of the first heating body portion 32 is further provided with a first pressure support portion 37 for supporting the rotating synthetic resin tube (200). The first pressing support part 37 is supported by a support member 37a installed on the upper portion of the base table 20 and a first guide rod 38a installed vertically to be movable up and down on the support member 37a. The first pressurizing roller unit (39) and the support member (37a) is provided with a first lifting cylinder (38b) for lifting the first pressurizing roller unit (39). The first press roller unit 39 includes a pair of first press rollers 39a which rotate in close contact with the synthetic resin tube when the flange portion is heated, and the first press roller 39a includes the first guide. The pressure roller support member 39c is connected to the rod 38a and the rod of the first lift cylinder 38b.

In addition, the second synthetic resin tube heating unit 40 for secondly heating the flange-shaped portion of the synthetic resin tube heated by the first synthetic resin tube heating unit 30 is substantially the structure of the first synthetic resin tube heating unit 30 and Have substantially the same structure.

The second synthetic resin tube heating unit 40 is installed along the base table 21, the second guide rail 41, and the second guide rail 41 so as to be able to move forward and backward, and the second heating body 42. It is provided. The second inserting portion 43 of the synthetic resin heating tube 200 is provided on the front surface of the second heating body 42, and the flange forming portion 201 is heated on the side adjacent to the inner circumferential surface of the second inserting portion 43. The second heating heater 44 is installed. In addition, a second heating heater rod 45 for heating the inside of the synthetic resin pipe 200 is installed at the central portion of the second inserting portion 42. The second heating body 42 is connected to a rod of the second forward and backward cylinder 46 that moves forward and backward along the second guide rail. In addition, a second pressing support part 47 is further provided on the front surface of the second heating body 42 to be installed in the support member 37 as described above.

The flange forming unit 70 is installed on the side adjacent to the second synthetic resin tube heating portion 40, as shown in Figure 9 is heated by the first and second synthetic resin tube heating portion 30, 40 The flange 210 is formed by using the flange heating part 201 of the synthetic resin pipe 200, and the lower mold 71 installed on the base frame 21 extending from the base table 20, and the lower mold. An upper mold 73 is formed to be movable up and down along the mold guide rods 72 installed at both sides of the 71 to form a portion of the cavity for forming the flange 210 to be joined to the lower mold 71. Equipped. And it is provided on the first cylinder base 74 installed on the upper portion of the mold guide rod 72 is provided with a mold lifting cylinder 75 for elevating the upper mold (73).
And coupled to the upper and lower molds (71) (73) and the movable mold 80 for partitioning the cavity for forming the flange using the flange heating portion (201). The movable mold 80 is installed in the transfer table 86 forward and backward by the first forward and backward cylinder 85 as an actuator on the side corresponding to the upper and lower molds 71 and 73. The movable mold 80 is inserted into the hollow portion of the synthetic resin tube 200, that is, the hollow portion of the flange forming portion 201 of the synthetic resin tube 200 inserted into the cavity formed by the upper and lower molds 71 and 73. The insertion part core 81 is provided, and the cover part 82 is installed at the rear of the insertion core 81 to define a cavity for forming a flange. Since the front surface of the cover portion 82 is in close contact with the front surface of the flange 210 to be molded, the front surface of the groove 122, the sealing protrusion 123 and the groove to be formed on the front surface of the flange 210 as shown in FIG. A molding pattern for molding the sealing liquid injection part 224 and the injection hole 225 may be formed. The cavity to be formed by combining the upper and lower molds 71 and 73 partitions the rear surface and the outer circumferential surface of the flange 210 to be integrally formed in the synthetic resin pipe 200, and the movable mold 80 and the upper and lower molds ( 71 and 73 may further include a heating heater for heating the upper and lower molds 71 and 73 and the movable mold 80 while the flange 210 is formed.

 On the other hand, between the base table 20 and the flange forming unit 70 by using the flange forming unit 201 heated by the flange forming unit 70 integrally with the flange 210 and the synthetic resin pipe 200 It is further provided with a first gripping unit 50 for gripping the synthetic resin tube 200 during formation.

The first gripping unit 50 is installed on the base frame 21 and includes a fixing jaw 52 in which a gripping portion 51 is formed to hold a synthetic resin tube. And the upper side of the fixing jaw 52 is provided with a movable jaw 54 which is coupled to and separated from the fixing jaw 52 by a jaw guide rod 53 installed on the base frame 21. A second cylinder base 55 is installed at an end of the jaw guide rod 53, and the movable jaw 54 and a rod are connected to the second cylinder base 55 to elevate the movable jaw 54. The second lifting cylinder 56 is installed.

On the other hand, the synthetic resin pipe manufacturing method using the integrated flange forming apparatus of the synthetic resin pipe configured as described above is a synthetic resin pipe transfer step 151 for transferring the synthetic resin pipe to the base table 20, as shown in Figure 10, A first flange forming heating step 152 for heating the flange forming part 201 while rotating the synthetic resin pipe after inserting the synthetic resin pipe forming part into the first synthetic resin heating part to heat the flange forming part of the synthetic resin pipe; The first flange molding heating step (152) to transfer the flange-molded portion of the first heating is completed to the second synthetic resin tube heating portion and then inserted into the insertion hole of the second synthetic resin tube heating portion to heat the flange molding portion of the synthetic resin tube secondary And a second flange forming part heating step 153.

The upper flange 73 and the lower mold of the flange forming unit 70 are moved to the front surface of the flange forming unit 200 by moving the synthetic resin pipe 200 heated by the second flange forming heating unit 153. The insertion part 81 of the movable mold 80 positioned between the 71 and the upper and lower molds 73 and 71 together with the upper and lower molds 73 and the hollow of the synthetic resin tube supported by the upper and lower molds 73. The upper and lower molds 73 and 71 and the cover 82 for partitioning the cavity for forming the flange are pressed into the upper and lower molds 73 and 71 to integrally flange the end portion of the synthetic resin pipe. And a flange forming step 154 to form.

The operation of the integral flange forming apparatus of the synthetic resin tube according to the present invention configured as described above and the synthetic resin tube and the integral flange forming method according to the present invention will be described in detail as follows.

First, in order to form the flange 210 at the end of the synthetic resin tube 200 using the synthetic resin tube integrated flange forming apparatus 10 according to the present invention, the synthetic resin tube 200 is the front surface of the first synthetic resin tube heating unit 30. Place it in At this time, the synthetic resin tube 200 is to be supported by the synthetic resin tube rotating part 90 and the first auxiliary rotating rollers (95). An end portion of the synthetic resin tube 200 protrudes from the first rotary roller 93 toward the first synthetic resin tube heating part 20. To this end, the first synthetic resin tube heating unit 20 should be retracted by the cylinder (36).

In this state, the first synthetic resin tube heating unit 20 is advanced using the cylinder 36 so that the flange forming unit 201 of the synthetic resin tube 200 supported by the first synthetic resin tube rotating unit 90 is It is to be inserted into the first insertion portion 33 of the first synthetic resin tube heating portion (20). In this process, the first heating heater rod 35 may be positioned in the hollow portion of the flange molding portion.

In this state, by operating the first motor 94 of the first synthetic resin tube rotating part 90 by rotating the first rotating rollers 93, the synthetic resin tube 200 is rotated and the first heating body 32 The flange molding part is heated by using the first heating heater 34 and the first heating heater rod 35 inserted into the hollow part.

When the heating of the flange forming part 21 is completed using the first synthetic resin tube heating part 20, the first heating body 32 is retracted by the cylinder 36. Therefore, the flange forming part 201 of the synthetic resin pipe 200 is drawn out from the first inserting part 33.

Then, the synthetic resin pipe 200 is moved by using the synthetic resin pipe transfer unit 130 to move the front surface of the second synthetic resin pipe heating part 40, that is, to the first synthetic resin pipe heating part 30 as described above. By heating the synthetic resin pipe in the same manner as the method of heating the flange forming part.

Transfer of the synthetic resin pipe 200 by the synthetic resin pipe transfer unit 130 is installed on the conveying member 133 moving along the guide rail and the pipe support 135 supported by the lifting cylinder 134 is synthetic resin for conveying. It is to be located in the lower portion of the pipe 200, by operating the lifting cylinder 134 to raise the pipe support portion 135 to lift the synthetic resin pipe 200, using the forward and backward cylinder 132 transfer member Move 133 to be located in front of the second synthetic resin tube heating portion 40 of the synthetic resin tube (200). Then, the lifting cylinder is operated to lower the lifting member so that the synthetic resin pipe 200 is placed on the second synthetic resin pipe rotating part 100.

As described above, when the secondary heating of the flange forming unit 201 of the synthetic resin tube 200 is completed, the synthetic resin tube is transferred back and forth through the flange forming unit 70 using the synthetic resin conveying unit 130. And put on the upper surface of the auxiliary feed roller (105).

At this time, the first holding unit 50 is a movable jaw 54 with respect to the fixing jaw 52 is open, the upper mold 73 is separated from the lower mold 71 of the flange forming unit 70 In addition, the movable mold 80 is in a retracted state.

When the synthetic resin pipe 200 in which the flange heater is heated by the synthetic resin pipe transfer unit 130 is positioned above the forward and backward unit 110, the second motor 114 is driven to rotate the forward and backward rollers 113. Thus, the flange forming part 201 of the synthetic resin pipe 200 may be positioned between the upper and lower molds 73 and 71 through the first holding unit 50.

In this state, the lifting cylinder 56 of the first gripping unit 50 is operated to lower the movable jaw 44 to grip the fixed jaw 52 and the double synthetic water pipe 200.

When the gripping of the synthetic resin pipe 200 is completed as described above, the upper mold 73 is lowered by the mold elevating cylinder 75 to be formed with the lower mold 71 and the movable mold 80 is advanced. The insertion core 81 of the movable mold 80 is inserted into the hollow portion of the flange forming portion located in the cavity partitioned by the upper and lower molds 73 and 71, and the cover portion 82 is coupled to the upper and lower molds. As a cavity for forming a flange is partitioned, the flange is formed into a flange 210 integrated with the synthetic resin pipe 200 by using the flange forming part 201 of the synthetic resin pipe 200.

When the molding is completed as described above, the movable mold 80 is retracted, the upper and lower molds 73 and 71 are separated, and the movable jaw 56 of the first gripping unit 50 is raised.

Then, the forward and backward forward roller 113 of the forward and backward unit is reversed to retract the synthetic resin pipe in which the flange 210 is formed.

As described above, the integrated flange forming apparatus of the synthetic resin tube according to the present invention can form the flange integrally with the synthetic resin tube, so that durability can be improved as compared with the conventional method of fusion or fixing separately. Productivity can be improved.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

Claims (6)

A first synthetic resin tube heating portion for heating a flange forming portion of a synthetic resin tube which is formed on one side of the base table, and the molding is completed, and by the first synthetic resin tube heating portion adjacent to the first synthetic resin tube heating portion A second synthetic resin tube heating portion for secondary heating the heated flange forming portion,
A first gripping unit for forming a flange in a synthetic resin pipe by using a flange forming part heated and installed adjacent to the second synthetic resin pipe heating part, the first gripping unit for gripping the side adjacent to the flange mating part, and the first gripping part. A lower mold installed adjacent to the unit and an upper mold installed at an upper side of the lower mold and configured to partition and form a rear surface and an outer circumferential surface of the flange to be molded and molded by the first lifting unit;
A movable mold having an insert core coupled to a molded upper and lower mold and inserted into a heated flange forming portion and a cover portion installed on an outer circumferential surface of the insert core to partition a cavity for forming a upper and lower mold and a flange; And a flange forming unit having a forward and backward forwarding unit for reversing. The method of claim 1,
The base table includes a synthetic resin pipe transfer unit for moving the synthetic resin pipe from the first synthetic resin heating portion to the second synthetic resin heating portion and the flange molding portion;
A synthetic resin tube forward and backward transfer unit installed at the front side of the flange forming unit and transferring the synthetic resin tube in a longitudinal direction;
Synthetic resin tube integrated flange characterized in that it is provided on the front of the first synthetic resin tube heating portion and the second synthetic resin tube heating portion, respectively, the first and second pressure support portion for supporting the synthetic resin tube heated by the flange forming portion of the synthetic resin tube Molding apparatus. The method of claim 2,
The synthetic resin pipe conveying unit includes a guide rail installed at right angles to the synthetic resin pipe on a base frame, a transfer member transported from side to side along the guide rail by a front and rear swing cylinder, and installed on the transfer member. Molding apparatus of a synthetic resin tube integrated flange, characterized in that the pipe support portion is provided on the lifting cylinder for elevating. A first flange forming sub-heat for heating the flange forming portion while rotating the synthetic resin tube after inserting the conveying step for transferring the synthetic resin tube to the base table, and heating the flange-forming portion of the synthetic resin tube and inserting it into the first inserting portion of the first synthetic resin tube heating portion. Steps,
A second heating part of the synthetic resin pipe flange forming part by transferring the flange forming part of the first heating completed by the first flange forming heating step to the second synthetic resin pipe heating part and inserting it into the second insertion hole of the second synthetic resin pipe heating part; Heating the flange forming part,
After moving the synthetic resin pipe heated by the heating step of the second flange forming part to the front of the flange forming unit and placing the flange heating portion between the upper mold and the lower mold of the flange forming unit, and then mold the upper and lower molds In addition, the movable mold having a cover portion for partitioning the upper and lower molds and the cavity for forming the flange is inserted into the hollow portion of the synthetic resin tube supported by the upper and lower molds, and the flange is integrated at the end of the synthetic resin tube by the forward and backward transfer unit. Forming method of a synthetic resin tube integrated flange comprising a flange forming step of forming a. delete The flange integrated synthetic resin tube according to claim 1 or 4, which is manufactured by a synthetic resin pipe flange integral molding apparatus or a synthetic resin tube flange integral forming method.

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