Double-water-path cooling circulation system of super-strong flaring plastic corrugated pipe forming mold

Abstract

The utility model discloses a double-water-path cooling circulation system of a super-strong flaring plastic corrugated pipe forming die, which relates to the technical field of equipment for manufacturing plastic corrugated pipes and comprises a flaring cooling water path for cooling a flaring module and a main pipe cooling water path for cooling a main pipe module. The flaring cooling water path adopts a second rotating joint, the first rotating joint and the second rotating joint rotate around the same rotating axis, when the main pipe module and the flaring module operate along the annular track on the mounting seat, the flaring cooling water path and the main pipe cooling water path synchronously move along with the main pipe module and the flaring module, and the drag chain pipe assembly rotates around the rotating axis and moves on the fixed bracket. The flaring cooling water path and the main pipe cooling water path are completely independent and do not interfere with each other. The water flow and the water temperature flowing to the main pipe module and the flaring module are independently controlled, so that the produced super-strong flaring plastic corrugated pipe is high in strength, good in appearance and high in production speed.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment for manufacturing plastic corrugated pipes, in particular to a double-waterway cooling circulation system for a forming die of an ultra-strong flared plastic corrugated pipe. Background Art

[0002] In recent years, with the development of the application of double-wall corrugated pipes, the problem of leakage at the socket and spigot has been exposed more and more. Some countries and regions have begun to reduce the use of the connection method with flared ends, socket ends and sealing rubber rings. Alternative methods such as injection molding flaring and welding flaring have gradually been used, but the implementation costs of these alternative methods are much higher than the socket and spigot connection method. The main reasons for the leakage at the socket and spigot are rubber ring aging and flaring deformation, and flaring deformation accounts for the main factor. We plan to improve the stiffness of the flared end by optimizing the flared end structure, effectively improve the deformation problem of the flared end, and provide customers with socket and spigot flared ends that fully meet the standard requirements and are more reliable. Thus, the concept of ultra-strong flaring is proposed. Ultra-strong flaring means that the wall thickness of the flared part of the pipe should meet a certain value. Generally, the flaring thickness reaches more than 2 times the thickness of the straight pipe pressing layer, which will greatly increase the stiffness of the flared pipe and effectively solve the problem of flaring deformation.

[0003] To produce plastic corrugated pipes with ultra-strong flaring, this places extremely high requirements on the cooling system of the molding machine. Most of the existing molding machine die cooling systems are single-waterway circulation cooling systems. All modules use the cooling water in the same channel, and the pipes are cooled by the circulating cooling water in the module. This structure has low cooling efficiency, and the water temperature and water flow rate can only take into account the molding module and the flaring module, which greatly limits the improvement of the pipe production speed.

[0004] In addition, the Chinese utility model patent ZL 2021 2 3042397.5 discloses a water cooling circulation system for a plastic corrugated pipe forming die. Although the water introduced from the outside is divided into two non-interfering and separately flowing cooling waterways through a rotary joint assembly, namely the flaring cooling waterway for cooling the flaring module and the main pipe cooling waterway for cooling the main pipe module. The temperatures of the corresponding main pipe module and flaring module are controlled by separately controlling the temperatures of the main pipe cooling waterway and the flaring cooling waterway. However, the flaring cooling waterway and the main pipe cooling waterway still need to share a set of four-way rotary joint. This will cause the water temperatures of the two circulating waterways to affect each other at the four-way rotary joint, making it difficult to control the water temperature, and it is not easy to control the water flow rate of each. In addition, the integrated four-way rotary joint has a large external dimension, a relatively large resistance when running, and is not flexible enough, and is not suitable for rapid operation.

[0005] In summary, the existing cooling solutions can no longer meet the cooling requirements of the ultra-strong flaring die. If continued to be used, it will seriously reduce the production speed, extend the cooling time, and reduce the production efficiency. Summary of the Utility Model

[0006] The technical problem to be solved by the present utility model is to provide a double-waterway cooling circulation system for a super-strong flared plastic corrugated pipe forming die. The circulating cooling water path for cooling the flaring module and the circulating cooling water path for cooling the main pipe module are separately arranged, and the two circulating cooling water paths do not interfere with each other. The water flow rate and water temperature flowing to the main pipe module are separately controlled, and the water flow rate and water temperature flowing to the flaring module are separately controlled, so that the produced super-strong flared plastic corrugated pipe has high strength, good appearance, and fast production speed.

[0007] To solve the above technical problem, the present utility model adopts the following technical solutions:

[0008] A double-waterway cooling circulation system for a super-strong flared plastic corrugated pipe forming die is arranged on a mounting base for mounting the forming die. The forming die includes a plurality of main pipe modules and flaring modules, and is characterized in that:

[0009] A fixed bracket is fixed on the top of the mounting base. The double-waterway cooling circulation system includes a flaring cooling water path for cooling the flaring module and a main pipe cooling water path for cooling the main pipe module.

[0010] The main pipe cooling water path includes a main die total inlet and return water pipe assembly, a drag chain main die inlet and return water pipe assembly, an annular total inlet and return water pipe assembly, and a main pipe branch inlet and return water pipe assembly fixedly connected to each main pipe module.

[0011] The annular total inlet and return water pipe assembly is wound around the outside of the fixed bracket. The annular total inlet and return water pipe assembly is arranged in parallel with the annular transmission chain. A first water distribution seat and a plurality of second water distribution seats are fixedly connected to the annular transmission chain and the annular total inlet and return water pipe assembly. One end of the drag chain main die inlet and return water pipe assembly is fixedly connected to the main die total inlet and return water pipe assembly through a first rotary joint, and the other end is connected to the annular total inlet and return water pipe assembly through the first water distribution seat. The first water distribution seat and the second water distribution seats are respectively fixedly connected to the main pipe branch inlet and return water pipe assembly.

[0012] The flaring cooling water path includes a flaring die total inlet and return water pipe assembly, a drag chain flaring die inlet and return water pipe assembly, and a flaring die branch inlet and return water pipe assembly fixedly connected to each flaring module. One end of the drag chain flaring die inlet and return water pipe assembly is fixedly connected to the flaring die total inlet and return water pipe assembly through a second rotary joint, and the other end is connected to the flaring die branch inlet and return water pipe assembly through a third water distribution seat. The third water distribution seat is fixed on the annular transmission chain.

[0013] The main drag chain mold inlet and return water pipe assembly and the flaring drag chain mold inlet and return water pipe assembly are bundled inside the drag chain to form a drag chain pipe assembly. The drag chain pipe assembly is located on the fixed bracket, and the first rotary joint and the second rotary joint rotate around the same rotation axis.

[0014] When the main pipe module and the flaring module run along the annular track on the mounting base, the annular main inlet and return water pipe assembly and the annular drive chain move synchronously with the main pipe module and the flaring module. The drag chain pipe assembly rotates around the rotation axis and moves on the fixed bracket.

[0015] Preferably, the flaring mold main inlet and return water pipe assembly includes a flaring mold main inlet pipe and a flaring mold main return pipe. The flaring drag chain mold inlet and return water pipe assembly includes a flaring drag chain mold inlet pipe and a flaring drag chain mold return pipe. The flaring mold branch inlet and return water pipe assembly includes a flaring branch inlet pipe and a flaring branch return pipe.

[0016] The second rotary joint is fixedly connected to the flaring mold main inlet pipe, the flaring mold main return pipe, the flaring drag chain mold inlet pipe, and the flaring drag chain mold return pipe. The flaring drag chain mold inlet pipe and the flaring drag chain mold return pipe are connected to the third water distribution seat, and the third water distribution seat is connected to the flaring branch inlet pipe and the flaring branch return pipe.

[0017] Preferably, a flow meter is installed on the flaring mold main inlet pipe.

[0018] Preferably, the dual-waterway cooling circulation system includes a flaring waterway installation support frame. The flaring waterway installation support frame includes a long support column and a top plate. The flaring mold main inlet pipe and the flaring mold main return pipe are fixed on the long support column through pipe restraint members, and the second rotary joint is fixedly installed under the lower part of the top plate.

[0019] Preferably, the fixed bracket includes a short support column and a drag chain support disc. The drag chain support disc is fixed on the top of the mounting base through the short support column. The drag chain pipe assembly is located on the drag chain support disc and can move on the drag chain support disc.

[0020] Preferably, the first rotary joint is fixed on the top of the mounting base and partially passes through the drag chain support disc. The first rotary joint is located below the second rotary joint.

[0021] Preferably, the main mold main inlet and return water pipe assembly includes a main mold main inlet pipe and a main mold main return pipe. The drag chain main mold inlet and return water pipe assembly includes a drag chain main mold inlet pipe and a drag chain main mold return pipe. The annular main inlet and return water pipe assembly includes an annular main inlet pipe and an annular main return pipe. The main pipe branch inlet and return water pipe assembly includes a main pipe branch inlet pipe and a main pipe branch return pipe.

[0022] The annular main inlet pipe and the annular main return pipe are wound around the outside of the fixed bracket. The first rotary joint is fixedly connected to the main mold main inlet pipe, the main mold main return pipe, the drag chain main mold inlet pipe and the drag chain main mold return pipe. A plurality of first water distribution seats and a plurality of second water distribution seats are fixedly connected to the annular main inlet pipe and the annular main return pipe. The drag chain main mold inlet pipe and the drag chain main mold return pipe are connected to the first water distribution seats, and the first water distribution seats and the second water distribution seats are connected to the main pipe branch inlet pipe and the main pipe branch return pipe.

[0023] Preferably: The annular drive chain is located below the annular main inlet pipe and the annular main return pipe. The first water distribution seats and the plurality of second water distribution seats are evenly distributed and fixed on the annular main inlet pipe, the annular main return pipe and the annular drive chain. The drive device drives the annular drive chain to move synchronously with the main pipe module and the flaring module.

[0024] Preferably: The drive device includes a power output shaft, a driving wheel fixed to the power output shaft, a first driven wheel and a second driven wheel. The driving wheel meshes with the first driven wheel. The first driven wheel and the second driven wheel are respectively arranged at both ends of the fixed bracket. The annular drive chain is wound around the first driven wheel and the second driven wheel.

[0025] Preferably: The first rotary joint includes a fixed base and a rotatable head. A plurality of bolt mounting holes are formed in the fixed base. The rotatable head is rotatably mounted on the fixed base. At least two water passing channels are provided on both the rotatable head and the fixed base. The first rotary joint and the second rotary joint have the same structure.

[0026] Compared with the prior art, the beneficial effects of the present utility model are:

[0027] The double-waterway cooling circulation system of the super flaring plastic corrugated pipe forming mold of the present utility model includes a flaring cooling waterway for cooling the flaring module and a main pipe cooling waterway for cooling the main pipe module. The main pipe cooling waterway adopts a first rotary joint, and the flaring cooling waterway adopts a second rotary joint. The first rotary joint and the second rotary joint rotate around the same rotation axis. The flaring cooling waterway and the main pipe cooling waterway do not share a rotary joint assembly. The flaring cooling waterway and the main pipe cooling waterway are completely independent of each other and do not interfere with each other. The water temperature of the main pipe cooling waterway will not affect the water temperature of the flaring cooling waterway, nor will it affect the flow rate of their respective circulating waterways.

[0028] When the main pipe module and the flaring module run along the annular track on the mounting seat, the annular main inlet and return pipe assembly and the annular drive chain move synchronously with the main pipe module and the flaring module, and the drag chain pipe assembly rotates around the rotation axis and moves on the fixed bracket.

[0029] The dual-waterway cooling circulation system of the super flaring plastic corrugated pipe forming die of the present utility model has a separately arranged circulating cooling waterway for cooling the flaring module and a circulating cooling waterway for cooling the main pipe module. The two circulating cooling waterways do not interfere with each other. The water flow rate and water temperature flowing to the main pipe module are controlled separately, and the water flow rate and water temperature flowing to the flaring module are controlled separately, so that the super flaring part is cooled evenly, avoiding flaring cracking. At the same time, the produced super flaring plastic corrugated pipe has high strength, good appearance, and fast production speed. Description of the Drawings

[0030] Figure 1 is a schematic structural diagram of the dual-waterway cooling circulation system of the super flaring plastic corrugated pipe forming die of the present utility model (the module is in the open die state);

[0031] Figure 2 is Figure 1 View A of (partial omitted);

[0032] Figure 3 is Figure 1 Side view of (only the left platform is shown, the right platform is omitted);

[0033] Figure 4 is Figure 3 Schematic diagram of the annular total inlet and return water pipe assembly and the water distribution seat in ;

[0034] Figure 5 is Figure 3 View B of a partial structure in (schematic diagram of the first rotary joint and the drag chain pipe assembly);

[0035] Figure 6 Cross-sectional schematic diagram of the first rotary joint and the second rotary joint;

[0036] Figure 7 is Figure 4 Cross-sectional schematic diagram at C-C of ;

[0037] Figure 8 is Figure 1 Top view schematic diagram of the dual-waterway cooling circulation system of the left platform in ;

[0038] In the figure:

[0039] 1. Fixed bracket; 2. Mounting seat; 200. Ring drive chain; 101. Short support column; 102. Drag chain support disc; 31. Flaring die total inlet and return water pipe assembly; 311. Flaring die total inlet pipe; 3110. Flowmeter; 312. Flaring die total return water pipe; 32. Drag chain flaring die inlet and return water pipe assembly; 321. Drag chain flaring die inlet pipe; 322. Drag chain flaring die return water pipe; 33. Flaring die sub-inlet and return water pipe assembly; 331. Flaring sub-inlet pipe; 332. Flaring sub-return water pipe; 34. Flaring waterway installation support frame; 341. Long support column; 342. Top plate; 1001. Power output shaft; 1002. Driving wheel; 1003. First driven wheel; 1004. Second driven wheel; 41. Main die total inlet and return water pipe assembly; 411. Main die total inlet pipe; 412. Main die total return water pipe; 42. Drag chain main die inlet and return water pipe assembly; 421. Drag chain main die inlet pipe; 422. Drag chain main die return water pipe; 43. Ring total inlet and return water pipe assembly; 431. Ring total inlet pipe; 432. Ring total return water pipe; 44. Main pipe sub-inlet and return water pipe assembly; 441. Main pipe sub-inlet pipe; 442. Main pipe sub-return water pipe; 5. First rotary joint; 501. Fixed base; 502. Rotatable head; 6. First water distribution seat; 7. Second water distribution seat; 8. Second rotary joint; 9. Third water distribution seat; T. Drag chain; K. Flaring module; Z. Main pipe module. Detailed implementation mode

[0040] The technical solution of the present utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments to further understand the purpose, solution and efficacy of the present utility model, but it is not intended to limit the scope of protection of the appended claims of the present utility model.

[0041] The module used by the corrugated pipe forming machine to produce the straight pipe part of the pipe is called the main pipe module, and the module used by the corrugated pipe forming machine to produce the flared part of the pipe is called the flaring module. Generally speaking, a corrugated pipe forming machine generally installs 34 - 36 pairs of main pipe modules and 2 - 4 pairs of flaring modules according to the pipe diameter specification.

[0042] The following takes the whole set of molds set in the super flaring plastic corrugated pipe forming machine as an example for illustration, in combination with Figure 1 and Figure 8 As shown, the super flaring plastic corrugated pipe forming machine has a symmetrically arranged left platform P1 and right platform P2. The modules on the left platform P1 and the right platform P2 are arranged in pairs correspondingly, with a total of 36 pairs of main pipe modules and 2 pairs of flaring modules. A double-waterway cooling circulation system of the super flaring plastic corrugated pipe forming mold is installed on each of the left platform and the right platform respectively.

[0043] As Figures 1 to 8As shown together, the double-waterway cooling circulation system of the super-strong flaring plastic corrugated pipe forming die is arranged on the mounting base 2 for mounting the forming die. The forming die includes a plurality of main pipe modules Z and flaring modules K. A fixed bracket 1 is fixed on the top of the mounting base 2. The double-waterway cooling circulation system includes a flaring cooling waterway for cooling the flaring module K and a main pipe cooling waterway for cooling the main pipe module Z.

[0044] The main pipe cooling waterway includes a main die total inlet and return water pipe assembly 41, a drag chain main die inlet and return water pipe assembly 42, an annular total inlet and return water pipe assembly 43, and a main pipe branch inlet and return water pipe assembly 44 fixedly connected to each main pipe module Z.

[0045] As Figure 1 As Figure 3 And Figure 4 As shown in, the annular total inlet and return water pipe assembly 43 is wound around the outside of the fixed bracket 1. The annular total inlet and return water pipe assembly 43 is arranged in parallel with the annular transmission chain 200. A first water distribution seat 6 and a plurality of second water distribution seats 7 are fixedly connected to the annular transmission chain 200 and the annular total inlet and return water pipe assembly 43. One end of the drag chain main die inlet and return water pipe assembly 42 is fixedly connected to the main die total inlet and return water pipe assembly 41 through a first rotary joint 5, and the other end is connected to the annular total inlet and return water pipe assembly 43 through the first water distribution seat. The first water distribution seat 6 and the second water distribution seats 7 are respectively fixedly connected to the main pipe branch inlet and return water pipe assembly 44.

[0046] Specifically, the main die total inlet and return water pipe assembly 41 includes a main die total inlet pipe 411 and a main die total return pipe 412. The drag chain main die inlet and return water pipe assembly 42 includes a drag chain main die inlet pipe 421 and a drag chain main die return pipe 422. The annular total inlet and return water pipe assembly 43 includes an annular total inlet pipe 431 and an annular total return pipe 432. The main pipe branch inlet and return water pipe assembly 44 includes a main pipe branch inlet pipe 441 and a main pipe branch return pipe 442. The annular total inlet pipe 431 and the annular total return pipe 432 are wound around the outside of the fixed bracket 1. The first rotary joint 5 is fixedly connected to the main die total inlet pipe 411, the main die total return pipe 412, the drag chain main die inlet pipe 421, and the drag chain main die return pipe 422. A first water distribution seat 6 and a plurality of second water distribution seats 7 are fixedly connected to the annular total inlet pipe 431 and the annular total return pipe 432. The drag chain main die inlet pipe 421 and the drag chain main die return pipe 422 are connected to the first water distribution seat 6. The first water distribution seat 6 and the second water distribution seats 7 are connected to the main pipe branch inlet pipe 441 and the main pipe branch return pipe 442.

[0047] The flaring cooling waterway includes a flaring die total inlet and return water pipe assembly 31, a drag chain flaring die inlet and return water pipe assembly 32, and a flaring die branch inlet and return water pipe assembly 33 fixedly connected to each flaring module. One end of the drag chain flaring die inlet and return water pipe assembly 32 is fixedly connected to the flaring die total inlet and return water pipe assembly 31 through a second rotary joint 8, and the other end is connected to the flaring die branch inlet and return water pipe assembly 33 through a third water distribution seat 9. The third water distribution seat 9 is fixed on the annular transmission chain 200.

[0048] Specifically, as Figure 1 and Figure 2 shown, the main inlet and return water pipe assembly 31 of the flaring die includes the main inlet water pipe 311 of the flaring die and the main return water pipe 312 of the flaring die. The inlet and return water pipe assembly 32 of the drag chain flaring die includes the inlet water pipe 321 of the drag chain flaring die and the return water pipe 322 of the drag chain flaring die. The inlet and return water pipe assembly 33 of the flaring die branch includes the branch inlet water pipe 331 of the flaring die and the branch return water pipe 332 of the flaring die. The inlet and return water pipe assembly 42 of the drag chain main die and the inlet and return water pipe assembly 32 of the drag chain flaring die are bundled in the drag chain T to form a drag chain pipe assembly. The drag chain pipe assembly is located on the fixed bracket 1. The first rotary joint 5 and the second rotary joint 8 rotate around the same rotation axis.

[0049] When the main pipe module Z and the flaring module K run along the annular track on the mounting base 2, the annular main inlet and return water pipe assembly 43 and the annular drive chain 200 move synchronously with the main pipe module Z and the flaring module K. The drag chain pipe assembly rotates around the rotation axis and moves on the fixed bracket 1.

[0050] The second rotary joint 8 is fixedly connected to the main inlet water pipe 311 of the flaring die, the main return water pipe 312 of the flaring die, the inlet water pipe 321 of the drag chain flaring die, and the return water pipe 322 of the drag chain flaring die. The inlet water pipe 321 of the drag chain flaring die and the return water pipe 322 of the drag chain flaring die are connected to the third water distribution seat 9. The third water distribution seat 9 is connected to the branch inlet water pipe 331 of the flaring die and the branch return water pipe 332 of the flaring die.

[0051] A flow meter 3110 is installed on the main inlet water pipe 311 of the flaring die to control the water flow rate in the main inlet water pipe 311 of the flaring die, and thus to control the water flow rate and temperature of the flaring cooling water path. The flaring cooling water path for cooling the flaring module is set as an independent circulation water path. With the use of a chiller, the installation of the flow meter 3110 on the main inlet water pipe 311 of the flaring die ensures the supply of cold water with accurate water temperature and water flow rate.

[0052] As Figure 2 shown, the double-water-path cooling circulation system includes a flaring water path installation support frame 34. The flaring water path installation support frame includes a long support column 341 and a top plate 342. The main inlet water pipe 311 of the flaring die and the main return water pipe 312 of the flaring die are fixed on the long support column 341 through pipe restraint members. The second rotary joint 8 is fixedly installed at the lower part of the top plate 342.

[0053] The first rotary joint 5 and the second rotary joint 8 are used in cooperation to ensure the independent operation of the two sets of circulation water paths of the main pipe cooling water path for cooling the main pipe module and the flaring cooling water path for cooling the flaring module, without interference with each other. The two sets of circulation water paths respectively control the water temperature and water flow rate of the main pipe module and the flaring module, which has an obvious effect on improving the production speed of the super-strong flared plastic corrugated pipe, and also improves the appearance quality of the pipe.

[0054] The structures of the first water distributor 6, the second water distributor 7 and the third water distributor are basically the same. A two-way, three-way or four-way water distributor can be selected according to needs. The bottom of the water distributor uses a double-roller structure. When the middle of the annular drive chain 200 sags, the sliding friction at the bottom of the water distributor becomes rolling friction, effectively reducing the chain drive resistance.

[0055] In some embodiments, the fixed bracket 1 includes a short support column 101 and a drag chain support disk 102. The drag chain support disk 102 is fixed to the top of the mounting seat 2 through the short support column 101. The drag chain pipe assembly is located on the drag chain support disk 102 and can move on the drag chain support disk 102.

[0056] The first rotary joint 5 is fixed to the top of the mounting seat 2 and partially passes through the drag chain support disk 102. The first rotary joint 5 is located below the second rotary joint 8.

[0057] In some embodiments, the annular drive chain 200 is located below the annular main water inlet pipe 431 and the annular main water return pipe 432. The first water distributor 6 and a plurality of second water distributors 7 are evenly fixed on the annular main water inlet pipe 431, the annular main water return pipe 432 and the annular drive chain 200. The drive device drives the annular drive chain 200 to move synchronously with the main pipe module Z and the flaring module K.

[0058] In some embodiments, as Figure 4 shown, the drive device includes a power output shaft 1001, a driving wheel 1002 fixed to the power output shaft 1001, a first driven wheel 1003 and a second driven wheel 1004. The driving wheel 1002 meshes with the first driven wheel 1003. The first driven wheel 1003 and the second driven wheel 1004 are respectively arranged at both ends of the fixed bracket 1. The annular drive chain 200 is wound around the first driven wheel 1003 and the second driven wheel 1004. The drive device drives the annular drive chain 200 to move. The annular drive chain 200 drives the circulating water path to rotate around the platform, so that the circulating water path including all modules forms a closed water cavity. Preferably, the annular drive chain 200 adopts a double-chain structure, which has higher connection strength and more stable operation.

[0059] In some embodiments, as Figure 6As shown, the first rotary joint 5 includes a fixed base 501 and a rotatable head 502. A plurality of bolt mounting holes are provided on the fixed base 501. The rotatable head 502 is rotatably mounted on the fixed base 501 and can rotate 360°. At least two water channels are provided on both the rotatable head 502 and the fixed base 501. Bolts cooperate with the bolt mounting holes of the fixed base 501 to fix the first rotary joint 5 on the top of the mounting seat 2. The first rotary joint 5 and the second rotary joint 8 have the same structure. In this embodiment, the first rotary joint 5 and the second rotary joint 8 are set as four-way joints.

[0060] Trajectory of the cooling water flow in the main pipe cooling water circuit:

[0061] Main mold total inlet water pipe 411 - First rotary joint 5 - Drag chain main mold inlet water pipe 421 - First water distribution seat 6 - Annular total inlet water pipe 431 - Second water distribution seat 7 - Main pipe branch inlet water pipe 441 - Main pipe module Z (with cooling water channels inside) - Main pipe branch return water pipe 442 - Second water distribution seat 7 - Annular total return water pipe 432 - First water distribution seat 6 - Drag chain main mold return water pipe 422 - First rotary joint 5 - Main mold total return water pipe 412 - Discharged to the outside.

[0062] Trajectory of the cooling water flow in the flaring cooling water circuit:

[0063] Flaring mold total inlet water pipe 311 - Second rotary joint 8 - Drag chain flaring mold inlet water pipe 321 - Connect to the third water distribution seat 9 - Flaring branch inlet water pipe 331 - Flaring module K (with cooling water channels inside) - Flaring branch return water pipe 332 - Connect to the third water distribution seat 9 - Drag chain flaring mold return water pipe 322 - Second rotary joint 8 - Flaring mold total return water pipe 312.

[0064] The double - water - circuit cooling circulation system of the super - flaring plastic corrugated pipe forming mold of the present utility model includes a flaring cooling water circuit for cooling the flaring module and a main pipe cooling water circuit for cooling the main pipe module. The flaring cooling water circuit and the main pipe cooling water circuit are separately arranged, and the two circulating cooling water circuits do not interfere with each other. The water flow rate and water temperature flowing to the main pipe module are controlled separately, and the water flow rate and water temperature flowing to the flaring module are controlled separately, so that the produced super - flaring plastic corrugated pipe has high strength, good appearance, and fast production speed.

[0065] The present utility model is not limited to the above - mentioned embodiments. All improvements made based on the concept, principle, structure, and method of the present utility model are within the protection scope of the present utility model.

Claims

1. The dual-waterway cooling circulation system of the super-strong flaring plastic corrugated pipe forming die is arranged on the mounting base for mounting the forming die. The forming die includes a plurality of main pipe modules and flaring modules. It is characterized in that: A fixed bracket is fixed on the top of the mounting base. The dual-waterway cooling circulation system includes a flaring cooling waterway for cooling the flaring module and a main pipe cooling waterway for cooling the main pipe module. The main pipe cooling waterway includes a main mold total inlet and return water pipe assembly, a drag chain main mold inlet and return water pipe assembly, an annular total inlet and return water pipe assembly, and a main pipe branch inlet and return water pipe assembly fixedly connected to each main pipe module. The annular total inlet and return water pipe assembly is wound around the outside of the fixed bracket. The annular total inlet and return water pipe assembly is arranged in parallel with the annular transmission chain. A first water distribution seat and a plurality of second water distribution seats are fixedly connected to the annular transmission chain and the annular total inlet and return water pipe assembly. One end of the drag chain main mold inlet and return water pipe assembly is fixedly connected to the main mold total inlet and return water pipe assembly through a first rotary joint, and the other end is connected to the annular total inlet and return water pipe assembly through the first water distribution seat. The first water distribution seat and the second water distribution seats are respectively fixedly connected to the main pipe branch inlet and return water pipe assembly. The flaring cooling waterway includes a flaring mold total inlet and return water pipe assembly, a drag chain flaring mold inlet and return water pipe assembly, and a flaring mold branch inlet and return water pipe assembly fixedly connected to each flaring module. One end of the drag chain flaring mold inlet and return water pipe assembly is fixedly connected to the flaring mold total inlet and return water pipe assembly through a second rotary joint, and the other end is connected to the flaring mold branch inlet and return water pipe assembly through a third water distribution seat. The third water distribution seat is fixed on the annular transmission chain. The drag chain main mold inlet and return water pipe assembly and the drag chain flaring mold inlet and return water pipe assembly are bundled in a drag chain to form a drag chain pipe assembly. The drag chain pipe assembly is located on the fixed bracket. The first rotary joint and the second rotary joint rotate around the same rotation axis. When the main pipe module and the flaring module run along the annular track on the mounting base, the annular total inlet and return water pipe assembly and the annular transmission chain move synchronously with the main pipe module and the flaring module. The drag chain pipe assembly rotates around the rotation axis and moves on the fixed bracket.

2. The double-waterway cooling circulation system of the super-strong flaring plastic corrugated pipe forming die according to claim 1, characterized in that: The flaring mold total inlet and return water pipe assembly includes a flaring mold total inlet pipe and a flaring mold total return pipe. The drag chain flaring mold inlet and return water pipe assembly includes a drag chain flaring mold inlet pipe and a drag chain flaring mold return pipe. The flaring mold branch inlet and return water pipe assembly includes a flaring branch inlet pipe and a flaring branch return pipe. The second rotary joint is fixedly connected to the flaring mold total inlet pipe, the flaring mold total return pipe, the drag chain flaring mold inlet pipe, and the drag chain flaring mold return pipe. The drag chain flaring mold inlet pipe and the drag chain flaring mold return pipe are connected to the third water distribution seat. The third water distribution seat is connected to the flaring branch inlet pipe and the flaring branch return pipe.

3. The double-waterway cooling circulation system of the super-strong flaring plastic corrugated pipe forming die according to claim 2, characterized in that: A flow meter is installed on the flaring mold total inlet pipe.

4. The double-waterway cooling circulation system of the super-strong flaring plastic corrugated pipe forming die according to claim 3, characterized in that: The double-waterway cooling circulation system includes a flared-waterway installation support frame, and the flared-waterway installation support frame includes a long support column and a top plate. The main inlet pipe and the main return pipe of the flaring die are fixed on the long support column through pipe restraint members, and the second rotary joint is fixedly installed at the lower part of the top plate.

5. The double-waterway cooling circulation system of the super-strong flaring plastic corrugated pipe forming die according to claim 4, characterized in that: The fixed bracket includes a short support column and a drag chain support disk. The drag chain support disk is fixed on the top of the mounting seat through the short support column. The drag chain pipe assembly is located on the drag chain support disk and can move on the drag chain support disk.

6. The double-waterway cooling circulation system of the super-strong flaring plastic corrugated pipe forming die according to claim 5, characterized in that: The first rotary joint is fixed on the top of the mounting seat and partially passes through the drag chain support disk. The first rotary joint is located below the second rotary joint.

7. The double-waterway cooling circulation system of the super-strong flaring plastic corrugated pipe forming die according to claim 1, wherein: The main mold main inlet and return pipe assembly includes a main mold main inlet pipe and a main mold main return pipe. The drag chain main mold inlet and return pipe assembly includes a drag chain main mold inlet pipe and a drag chain main mold return pipe. The annular main inlet and return pipe assembly includes an annular main inlet pipe and an annular main return pipe. The main pipe branch inlet and return pipe assembly includes a main pipe branch inlet pipe and a main pipe branch return pipe. The annular main inlet pipe and the annular main return pipe are wound around the outside of the fixed bracket. The first rotary joint is fixedly connected to the main mold main inlet pipe, the main mold main return pipe, the drag chain main mold inlet pipe, and the drag chain main mold return pipe. A plurality of first water distribution seats and a plurality of second water distribution seats are fixedly connected to the annular main inlet pipe and the annular main return pipe. The drag chain main mold inlet pipe and the drag chain main mold return pipe are connected to the first water distribution seats. The first water distribution seats and the second water distribution seats are connected to the main pipe branch inlet pipe and the main pipe branch return pipe.

8. The dual-waterway cooling and circulating system of the super-strong flaring plastic corrugated pipe forming die according to claim 7, characterized in that: The annular transmission chain is located below the annular main inlet pipe and the annular main return pipe. The first water distribution seats and the plurality of second water distribution seats are evenly distributed and fixed on the annular main inlet pipe, the annular main return pipe, and the annular transmission chain. The driving device drives the annular transmission chain to move synchronously with the main pipe module and the flaring module.

9. The dual-waterway cooling circulation system of the super-strong flaring plastic corrugated pipe forming die according to claim 8, characterized in that: The driving device includes a power output shaft, a driving wheel fixed to the power output shaft, a first driven wheel, and a second driven wheel. The driving wheel meshes with the first driven wheel. The first driven wheel and the second driven wheel are respectively arranged at both ends of the fixed bracket. The annular transmission chain is wound around the first driven wheel and the second driven wheel.

10. The double-waterway cooling circulation system of the super-strong flaring plastic corrugated pipe forming die according to any one of claims 1 to 9, characterized in that: The first rotary joint includes a fixed base and a rotatable head. A plurality of bolt mounting holes are formed in the fixed base. The rotatable head is rotatably mounted on the fixed base. At least two water passing channels are provided on both the rotatable head and the fixed base. The first rotary joint and the second rotary joint have the same structure.

Images