KR100411980B1 - Manufacturing device of pe spiral dual wall pipe - Google Patents

Abstract

PURPOSE: A manufacturing device of a PE spiral dual wall pipe is provided to improve the productivity by applying cooling pipe structure and a joining gear and to reinforce the external earth pressure and durability by filling such a filling material as cement mortar. CONSTITUTION: A gear(19) rotating integrally with a fusing roller(20) is disposed to a molding machine(17) to spirally turn lying in the inside(4) of a spiral pipe. Plural joining rods(19') are formed to the outer peripheral surface of the gear. A rotating roller(18) is assembled with a cooling pipe(10') and the inside of the spiral pipe is formed through spiral turn by the rotation of the rotating roller. A dice(15) extruding an extrusion tube(4') and the cooling pipe form a curved part at the lower side. A support is formed on a side of the cooling pipe to support the extrusion tube extruded along the cooling pipe. A hemispheric cooling pipe forming a coolant injection port is fixed to the other side of the cooling pipe by a fixing rod.

Description

Apparatus for manufacturing blood spiral double walled pipe {omitted}

The present invention relates to a device for manufacturing a double-walled pipe.

In general, the underground spiral pipes used for drainage pipes are buried under the ground for long-term use, so external pressure and concentrated load are applied.

Therefore, in the present invention, a spiral winding extruded tube extruded along the cooling pipe from the die by the rotation of the fusion roller by the rotation of the rotary roller assembled to the molding machine linked to the cooling pipe assembled to the die of the extruder composed of a conventional manufacturing apparatus. The spiral tube constructed by fusion of the edge integrated with the circuit is composed of a hollow sphere and a welded portion by a cooling pipe. The spiral tube manufactured is a structure of the cooling pipe because the external pressure reinforcement is determined by the bending force of both side wall surfaces of the hollow sphere. It is a reality that an effective provision of manufacturing equipment is required by reinforcing productivity and diversifying roller

The present invention is to widen the width of the hollow sphere, which is an important factor of the pitch width in the longitudinal direction of the spiral tube in order to improve the productivity in the spiral tube forming apparatus is formed in the spiral winding in the spiral tube manufacturing apparatus, but bending the upper side of the hollow sphere It is formed intermittently integrally with the recess and the joint point on the inner side, but the structure of the cooling pipe and the joining gear are applied to form the inner space to penetrate in the longitudinal direction and the circumferential direction. The present invention relates to a manufacturing apparatus that provides external pressure reinforcement and robustness.

Figure 1 is a perspective view showing only the cut portion of the cooling pipe in the present invention

Figure 2 is a perspective view according to another embodiment of the cooling pipe portion according to the present invention

3 is a cross-sectional view taken along the line A-A in FIG.

4 is a partial perspective view showing the manufacturing apparatus of the present invention.

FIG. 5 is a cross-sectional view of a partial main portion showing a process portion in which the joining gear bends the outer surface in FIG. 4; FIG.

Figure 6 is a partial perspective view showing the cement mortar inlet on one side of the outer surface in the spiral pipe manufactured by the manufacturing apparatus of the present invention

FIG. 7 is a partially enlarged cross-sectional view of a recess and a junction point for filling a filler reinforcement in the inner space of FIG.

* Perspective view of the major symbols in the drawings *

2. Groove 3. Junction 4. Inner side 4 '. Extruded tube 5. Inlet 9. Outer side 10, 10 '. Cooling Pipe 10 ". Support 11. Hemispherical Cooling Tube

11 '. Hemispherical pedestal 12. Retention base 13. Incision

15. Dice 16. Auxiliary Dice 17. Molding Machine

18. Rotary Roller 19. Joining Gear 19 '. Junction 20. Fusion Roller

Therefore, in the manufacturing apparatus of the spiral tube described above, the inner surface 4 and the outer surface 9 are extruded in separate dies, and the outer surface 9 is bent to form the inner surface with the recess 2 and the junction 3. (4) to be firmly manufactured by integrating and forming an inner space (A) penetrating in the longitudinal and circumferential directions between the inner surface (4) and the outer surface (9), such as cement mortar, if necessary The filling reinforcing agent 7 is filled to provide external pressure reinforcement and robustness. The configuration of the present invention for this purpose, as shown in Figures 1 to 4, to form a spiral winding of the inner surface (4) of the spiral tube The gear 17 includes a gear 19 that rotates integrally with the fusion roller 20, and a plurality of joining tables 19 'are formed on the outer circumferential surface of the gear 19. In addition, the rotary roller 18 is assembled in conjunction with the cooling pipe 10 to form an inner surface 4 of the spiral tube in a spiral winding by the rotation of the rotary roller 18. The die 15 and the cooling pipe 10 which are assembled and interlocked with the rotary roller 18 to extrude the extrusion tube 4 'have a curved portion B formed on the lower side thereof, and further, the cooling pipe 10 A support 10 "is formed at one side to support the extruded tube 4 'to be extruded along the hemispherical cooling tube 11 having a cooling water inlet 14 formed at a side of the cooling pipe 10. ) Is fixed by the fixing table 12. Thus, the edge of the extruded tube 4 'is first formed by the fusion roller 20 through the extruded tube 4' extruded along the cooling pipe 10 as described above. It is integrated and fused, and next to the joining gear 19 in which a plurality of joining stands 19 'are formed on the outer surface at regular intervals. As output tube (4 ') shown in Figure 5 by bending the yaw homgu 2 and the junction point (3) to the inner surface, giving by fusion integrally with the 4 it gives by forming an inner space (A).

At this time, since the support 10 "is deformed as the width of the tube is extruded from the die, it acts as a support. Therefore, when the spirally wound the extrusion tube 4 'is used, the cooling water is used, where the width of the extrusion tube 4' is wide. Since the shrinkage is adjusted according to the size of the die 15 to provide a comfortable tube width accordingly

In addition, the extruded tube 4 'extruded from the die 15 assembled in the extruder is a cooling pipe assembled with a hemispherical pedestal 11' fixed to form a predetermined interval with the fixing table 12 on one side of the cooling pipe 10. Forming a wide width of the extrusion tube (4 ') to match the width of the (10), and a fixed interval of the fixing table 12 is a joining gear formed with a plurality of joints (19') at regular intervals on the outer surface ( A proper spacing is maintained to bend the extruded tube 4 'to the joint 19' of the 19), and the curved portion of the hemispherical pedestal 11 'is adapted to the curved portion of the cooling pipe 10.

In the spiral double wall pipe manufactured here, the through spaces formed in the inner space (a) are filled between the junction points 3 of the recesses 2 formed intermittently along the spiral winding direction. It is a manufacturing device that provides a product with high rigidity that is continuously filled and reinforced with external pressure.

And as an embodiment of the cooling pipe 10 in the present invention as shown in Figures 2 and 3 while making the width of the cooling pipe 10 wider than the existing cooling pipe 10, the cutout portion 13 on the curved portion (B) And assembling the fixed cooling pipe 10 to the die 15 of the extruder and the forming roller 18 of the molding machine 17 while maintaining the fixed spacing of the hemispherical pedestal 11 'with the fixing stand 12. When the double-walled tube is molded, the splicing gear 19 is connected to the inlet 13 of the cooling pipe 10 and the extrusion tube 4 'at a predetermined interval of the fixing rod 12, respectively. It is a manufacturing apparatus for forming the inner space (A) by simultaneously bending to 2) and the junction point 3. As shown in Figure 1 by forming a cooling water inlet 14 on one side of the hemispherical pedestal (11 ') hemispherical cooling If formed by the pipe 11, it is more effective than the device that is injected from the conventional cooling water inlet 15 In order to use the spiral pipe 1, which is a product manufactured by the manufacturing apparatus of the present invention, as a device for providing phosphorus cooling water for field construction, a cement mortar inlet 5 is provided at one side of the outer surface 9 as shown in FIG. ') Is formed in an appropriate process to fill the inner space (a) to fill the filling reinforcement (7), such as cement mortar is provided with a double-walled pipe spirally reinforced by external pressure

The present invention by molding the extrusion tube extruded by the rotational force of the rotary roller of the molding machine assembled in conjunction with the cooling pipe assembled in the conventional die for extruder to the inner side while bending the outer surface of the tube extruded from the die with the joining gear A device for manufacturing double-walled pipe manufacturing device with excellent productivity and economical efficiency as a manufacturing device that integrates a recess and a melting point to form an inner space.

Claims (2)

The extrusion extruded from the die 15 by the rotation of the rotating tube 18 of the extruder tube 4 'extruded from the die 16, the cooling pipe 10 assembled to the die 15 of the extruder, and the molding machine 17. In the spiral tube manufacturing apparatus which forms the spiral tube 1 by the spiral winding fusion roller 20 of the tube 4 ', Forming a support (10 ") on one side of the cooling pipe (10) and fixing the hemispherical cooling tube (11) with a fixing table 12 while maintaining a constant interval on the other side, by bending the extruded tube (4 ') on the outer surface Apparatus for producing a double-walled pipe, comprising a plurality of joining gears 19 formed with a plurality of joining stands 19 '. The apparatus of claim 1, wherein an incision (13) is formed in the cooling pipe (10) and a cooling water inlet (14) is formed on one side of the hemispherical cooling pipe (11).