A plastic corrugated pipe production equipment

Abstract

The application relates to the technical field of bellows, in particular to a plastic bellows production equipment. The plastic bellows production equipment comprises a circulating chain system, which is provided with two, mainly comprises a driving mechanism, a guide rail mechanism, a plurality of module mounting seats and a plurality of forming modules, each of the forming modules is detachably mounted on one of the module mounting seats, and all the forming modules are provided with a hollow structure; a synchronous liquid conveying assembly, which is provided with two and connected with two of the circulating chain systems and the forming modules thereon; and a spraying assembly. The application realizes step-by-step partition cooling, sets high-temperature slow cooling zones, medium-temperature quick cooling zones and low-temperature uniform cooling zones according to the sensitivity difference of the bellows to temperature gradients in different cooling stages, and then reduces energy consumption and avoids quality problems caused by the direct use of low-temperature cooling liquid to rapidly cool the high-temperature bellows in the continuous production process of the plastic bellows.

Description

Technical Field

[0001] This invention relates to the field of corrugated pipe technology, and more particularly to a plastic corrugated pipe production equipment. Background Technology

[0002] In existing technologies, the mainstream production method for plastic corrugated pipes is molding. A circulating chain system drives a large number of molding modules to continuously close, forming a corrugated cavity. The molten plastic pipe blank is inflated and cooled in the cavity to form a corrugated pipe product. However, existing plastic corrugated pipe production equipment usually supplies low-temperature coolant to all molding modules in a uniform way, using a rapid cooling method without differentiation. This ignores the different sensitivity of the corrugated pipe to temperature gradients at different molding stages, which can easily lead to uneven internal structure of the pipe and even quality problems such as microcracks or deformation. Summary of the Invention

[0003] To overcome the drawbacks of indiscriminate rapid cooling methods that ignore the differences in temperature gradient sensitivity of corrugated pipes at different molding stages, which can easily lead to uneven internal structure of the pipe and even quality problems such as microcracks or deformation, this invention provides a plastic corrugated pipe production equipment.

[0004] Technical solution: A plastic corrugated pipe production equipment includes: a circulating chain system, of which two are provided, mainly composed of a drive mechanism, a guide rail mechanism, several module mounting seats and several molding modules, each of the molding modules being detachably mounted on one of the module mounting seats, and all the molding modules being hollow structures; a synchronous liquid delivery component, of which two are provided, respectively connected to the two circulating chain systems and the molding modules thereon, synchronously delivering coolant to the corresponding molding modules as they move, forming a stepped zoned cooling by delivering coolant to the molding modules within a designated area; and a spray component, of which several are provided, respectively disposed within each molding module and connected to the synchronous liquid delivery component, for uniformly spraying coolant onto the demolding area of ​​the molding module.

[0005] Further explanation: The synchronous infusion assembly includes: two transmission modules connected to two transmission shafts within the circulating chain system; each transmission module includes a mounting bracket rotatably connected to the two transmission shafts, two transmission wheels rotatably connected to the two transmission shafts respectively, and a transmission pipe rotatably connected to the two transmission wheels; several connecting pipes arranged in upper and lower groups, each group of connecting pipes communicating with the transmission pipes of the two transmission modules; each forming module connected to one connecting pipe of the two groups of connecting pipes; each spraying assembly connected to the upper connecting pipe; and each connecting pipe equipped with a solenoid valve; and two liquid guiding modules. The fluid guiding module is connected to the two transmission modules and is set at the corresponding positions of the two circulating chain systems. The fluid guiding module includes an infusion box fixed to the mounting frame, an external pipe communicating with the infusion box, and several control valves communicating with the transmission pipe; and several isolation modules are provided, all of which are set in the transmission pipe and respectively between every two adjacent connecting pipes; wherein, the infusion box is provided with an arc-shaped groove that fits with the transmission pipe, and the arc-shaped groove has a through groove that is directly opposite to the control valve. The infusion box is slidably connected to the transmission pipe. All the connecting pipes are set as telescopic hoses, and each control valve corresponds to one connecting pipe.

[0006] To further explain, the isolation module includes a flow control tube, and a solenoid valve is installed inside the flow control tube.

[0007] To further explain, each transmission tube is also provided with a liquid guiding module on the opposite side of the mold closing position corresponding to the two circulating chain systems.

[0008] To further explain, a sealing sheet that fits into the transmission tube is provided in the arc-shaped groove of the infusion box.

[0009] To further explain, the transmission tube is provided with several limiting strips, and the infusion box has a limiting groove in the arc-shaped groove that corresponds one-to-one with the several limiting strips.

[0010] To further explain, the synchronous infusion assembly also includes several connecting tubes. Each molding module is connected to two connecting tubes, and every two adjacent molding modules are connected through one connecting tube. All connecting tubes are configured as telescopic flexible tubes, and each connecting tube is equipped with a solenoid valve.

[0011] Further explanation: The spraying assembly includes an arc-shaped partition disposed within the molding module, a plurality of heat-conducting sheets fixedly connected to the arc-shaped partition, and multiple branch pipes communicating with the plurality of heat-conducting sheets; wherein, the multiple branch pipes are connected to the connecting pipes, the plurality of heat-conducting sheets are respectively aligned with a plurality of peaks and troughs of the molding module, all the heat-conducting sheets are configured as hollow structures, and all the heat-conducting sheets are provided with a plurality of arc-shaped equidistantly distributed spray holes facing the demolding side of the molding module; the arc-shaped partition divides the interior of the molding module into a liquid storage cavity and an arc-shaped cavity, all the spray holes are located within the arc-shaped cavity, the arc-shaped cavity is connected to two connecting pipes, and the arc-shaped partition is provided with a plurality of drain holes.

[0012] To further explain, each of the aforementioned arc-shaped partitions is equipped with several temperature sensors on both sides.

[0013] To further clarify, all of the aforementioned arc-shaped partitions are made of a thermally conductive material.

[0014] The beneficial effects of this invention are as follows: 1. Implement stepped zoned cooling: Based on the different sensitivities of the corrugated pipe to temperature gradients at different cooling stages, set up a high-temperature slow cooling zone, a medium-temperature rapid cooling zone, and a low-temperature uniform cooling zone. This reduces energy consumption during the continuous production of plastic corrugated pipes and avoids quality problems caused by rapid cooling of high-temperature corrugated pipes due to the direct use of low-temperature coolant.

[0015] 2. The coolant used in the molding module that is close to the high-temperature slow cooling zone in the medium-temperature rapid cooling zone is drained into the previous molding module through the connecting pipe to replace it. In this way, the coolant in the previous molding module is pre-temperature adjusted so that it can quickly achieve the preset cooling effect after entering the medium-temperature rapid cooling zone, ensuring the cooling effect while reducing energy consumption.

[0016] 3. The temperature of the coolant inside the molding module is monitored by a temperature sensor on the arc-shaped partition, which facilitates the adjustment of the opening of the solenoid valve on the coolant input pipe to maintain the best cooling effect of the molding module. This avoids waste in the external coolant circulation system and avoids the use of the existing plug-in system to deliver coolant, thereby reducing the frequency of equipment maintenance and improving production stability. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a bottom-view structural diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the combined transmission tube, connecting tube, infusion box, and external tube of the present invention. Figure 4 This is a partial structural diagram of the present invention; Figure 5This is a schematic diagram of the internal structure of the transmission tube of the present invention; Figure 6 This is a schematic diagram of the internal structure of the molding module of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the arc-shaped partition, heat-conducting sheet, and multi-branch pipe combination of the present invention.

[0018] In the attached diagrams: 1-Circulating chain system, 101-Drive shaft, 2-Forming module, 201-Arc-shaped partition, 2011-Drain hole, 202-Storage chamber, 203-Arc-shaped cavity, 204-Heat-conducting plate, 2041-Spray hole, 3-Mounting bracket, 4-Drive wheel, 5-Drive pipe, 501-Limiting strip, 6-Connecting pipe, 7-Infusion box, 701-Through groove, 702-Sealing plate, 8-External pipe, 9-Connecting pipe, 10-Control valve, 11-Flow control pipe, 12-Multi-branch pipe. Detailed Implementation

[0019] The invention will now be described more fully below with reference to the accompanying drawings, in which presently preferred embodiments of the invention are illustrated. However, the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness and to fully convey the scope of the invention to those skilled in the art.

[0020] Example according to Figures 1-7 As shown, this embodiment provides a plastic corrugated pipe production equipment, including a circulating chain system 1, a synchronous liquid delivery component, and a spraying component. The circulating chain system 1 consists of two components, primarily composed of a drive mechanism, a guide rail mechanism, several module mounting seats, and several molding modules 2. Each molding module 2 is detachably mounted on one of the module mounting seats, and all molding modules 2 are hollow structures. The synchronous liquid delivery component consists of two components, each connected to one of the two circulating chain systems 1 and the molding modules 2 thereon. It synchronously delivers coolant to each molding module 2 as it moves, forming a stepped, zoned cooling system by delivering coolant to the molding modules 2 within a designated area. The spraying component consists of several components, each located within each molding module 2 and connected to the synchronous liquid delivery component, used to uniformly spray coolant onto the demolding area of ​​the molding module 2.

[0021] The synchronous infusion assembly includes a transmission module, connecting pipes 6, a fluid guiding module, and an isolation module. Two transmission modules are provided, each connected to one of the two transmission shafts 101 within the circulating chain system 1. Each transmission module includes a mounting bracket 3 rotatably connected to the two transmission shafts 101, two transmission wheels 4 rotatably connected to each of the two transmission shafts 101, and a transmission pipe 5 drivingly connected to each of the two transmission wheels 4. Several connecting pipes 6 are provided, divided into upper and lower groups. The two groups of connecting pipes 6 are respectively connected to the transmission pipes 5 of the two transmission modules. Each forming module 2 is connected to one connecting pipe 6 from each of the two groups of connecting pipes 6. Each spray assembly is connected to one upper connecting pipe 6. Each connecting pipe 6 is equipped with two solenoid valve fluid guiding modules, each connected to one of the two transmission modules. The moving module is connected to the corresponding position of the two circulating chain systems 1 when they are molded. The liquid guiding module includes an infusion box 7 fixed to the mounting frame 3, an external pipe 8 communicating with the infusion box 7, and several control valves 10 communicating with the transmission pipe 5. There are several isolation modules, all of which are set in the transmission pipe 5 and are respectively set between every two adjacent connecting pipes 6. The isolation module includes a flow control pipe 11, in which a solenoid valve is set. The infusion box 7 is provided with an arc-shaped groove that fits with the transmission pipe 5, and a through groove 701 that is directly opposite to the control valve 10 is opened in the arc-shaped groove. The infusion box 7 is slidably connected to the transmission pipe 5. All the connecting pipes 6 are set as telescopic hoses, and each control valve 10 corresponds to one connecting pipe 6. When the circulating chain system 1 is running, the transmission shaft 101 drives the transmission wheel 4 to rotate, and the transmission wheel 4 drives the transmission pipe 5 and the connecting pipe 6 to run synchronously with the molding module 2. This facilitates the input of coolant into the molding module 2 through the transmission pipe 5 and the connecting pipe 6 during the cyclic movement of the molding module 2. The connecting pipe 6 is set as a telescopic hose to avoid coolant leakage caused by the pulling of the connecting pipe 6 during the movement of the molding module 2. The transmission pipe 5 is divided into multiple separate cavities by the flow control pipe 11 and the solenoid valve therein. When the control valve 10 is opened facing the through groove 701, the coolant is directly introduced into the molding module 2 through the corresponding connecting pipe 6 through the separate cavity. This avoids the coolant in the entire transmission pipe 5 exchanging heat with the coolant in other connecting pipes 6, ensuring the cooling effect of the coolant input into the molding module 2 through the corresponding connecting pipe 6 when the control valve 10 is opened.

[0022] Each transmission pipe 5 is also equipped with a liquid guiding module on the opposite side of the mold closing position corresponding to the two circulating chain systems 1. When temperature adjustment is required, the upper and lower liquid guiding modules on the opposite side of the mold closing position can be used to replace and adjust the temperature of the coolant in the molding module 2.

[0023] A sealing sheet 702 is provided in the arc-shaped groove of the infusion box 7 to fit against the transmission tube 5. The sealing sheet 702 is in close contact with the surface of the transmission tube 5 to ensure the airtightness between the transmission tube 5 and the infusion box 7 and to prevent coolant leakage.

[0024] The transmission tube 5 is provided with a plurality of limiting strips 501, and the infusion box 7 has a limiting groove in the arc-shaped groove that corresponds one-to-one with the plurality of limiting strips 501. The limiting strips 501 cooperate with the limiting grooves to limit the transmission tube 5, so that the transmission tube 5 always remains in contact with the sealing sheet 702.

[0025] The synchronous infusion assembly also includes several connecting pipes 9. Each forming module 2 is connected to two connecting pipes 9, and every two adjacent forming modules 2 are connected through one connecting pipe 9. All connecting pipes 9 are configured as flexible retractable hoses, and each connecting pipe 9 is equipped with a solenoid valve. Connecting all forming modules 2 on the same circulation chain system 1 through several connecting pipes 9 facilitates the flow of coolant between the forming modules 2, allowing unused coolant to be fully utilized after flowing through the connecting pipes 9, thus saving energy.

[0026] The spraying assembly includes an arc-shaped partition 201 disposed within the molding module 2, a plurality of heat-conducting plates 204 fixedly connected to the arc-shaped partition 201, and multiple branch pipes 12 communicating with the plurality of heat-conducting plates 204. The multiple branch pipes 12 are connected to the connecting pipe 6. The plurality of heat-conducting plates 204 are respectively aligned with a plurality of peaks and troughs of the molding module 2. All heat-conducting plates 204 are hollow structures, and each heat-conducting plate 204 has a plurality of arc-shaped, equidistantly distributed spray holes 2041 facing the demolding side of the molding module 2. Coolant output from the connecting pipe 6 is introduced into the multiple heat-conducting plates 204 through the multiple branch pipes 12 and sprayed onto the peaks and troughs through the multiple spray holes 2041 to ensure cooling effect. However, the plurality of heat-conducting plates 204 can also correspond to other positions of the peaks and troughs, achieving a cooling effect for the molding module 2, but this may easily lead to poor local cooling.

[0027] The arc-shaped partition 201 divides the interior of the molding module 2 into a liquid storage chamber 202 and an arc-shaped cavity 203. All the spray holes 2041 are located within the arc-shaped cavity 203, which is connected to two connecting pipes 9. The arc-shaped partition 201 has several drain holes 2011, and several temperature sensors are located on both sides of each arc-shaped partition 201. The arc-shaped partition 201 and all the heat-conducting sheets 204 are made of thermally conductive material. Monitoring the coolant temperature in the liquid storage chamber 202 and the arc-shaped cavity 203 using temperature sensors facilitates accurate adjustment of the cooling effect of the molding module 2. By using thermally conductive materials for the arc-shaped partition 201 and the heat-conducting sheets 204, heat exchange between the coolant in the liquid storage chamber 202 and the arc-shaped cavity 203 is facilitated, ensuring full utilization of the coolant introduced into the molding module 2 through the connecting pipes 9.

[0028] During installation, the device is fixed to the external frame via mounting bracket 3. The drive mechanism, guide rail mechanism, and several module mounting bases of the circulating chain system 1 are all existing technologies. The circulating chain system 1 and forming modules 2, in conjunction with the external extruder and traction machine, form a complete plastic corrugated pipe production line for producing plastic corrugated pipes. All upper external pipes 8 are connected to the outlet of the external coolant circulation system, and all lower external pipes 8 are connected to the inlet of the external coolant circulation system. Before production, all forming modules 2 are filled with coolant. During production, the circulating chain system 1 drives the forming module... During the cyclic movement of module 2, coolant is input into the infusion box 7 through an external coolant circulation system. The infusion box 7 corresponds to the mold closing position of the two circulation chain systems 1. When the control valve 10 corresponds to the through groove 701, the control valve 10 is opened (the control valve 10 is closed in other states). The coolant in the infusion box 7 is introduced into the transmission pipe 5 through the control valve 10, and then into the multi-branch pipe 12 in the corresponding molding module 2 through the connecting pipe 6 corresponding to the control valve 10. This allows the coolant to be input into multiple heat-conducting plates 204 through the multi-branch pipe 12, and then sprayed out through multiple spray holes 2041 on the heat-conducting plates 204. This ensures uniform distribution of the coolant within the arc-shaped cavity 203, thereby guaranteeing a uniform temperature of the coolant and ensuring effective cooling and high-quality molding of the plastic corrugated tube. Simultaneously, the coolant in the arc-shaped cavity 203 is discharged through the drain hole 2011 into the storage cavity 202. For the medium-temperature rapid cooling zone corresponding to the middle position of the plastic corrugated tube mold, when the molding module 2 is within this zone, the solenoid valve and corresponding control valve 10 on the connecting pipe 6 connected to the lower side of the storage cavity 202 are open. Consequently, the coolant in the storage cavity 202 is immediately discharged through the connecting pipe 6 and the corresponding control valve 10 into the lower infusion box 7. The external coolant circulation system is introduced through the external pipe 8, which is connected to the external coolant. This ensures that the coolant in the molding module 2 in the medium-temperature rapid cooling zone is constantly replaced, keeping the molding module 2 in a low-temperature rapid cooling state. At the same time, the temperature sensor on the arc-shaped partition 201 monitors the coolant temperature in the molding module 2, which facilitates the adjustment of the opening of the solenoid valve on the coolant input pipe 6. This maintains the best cooling effect for the molding module 2, avoids waste of cooling in the external coolant circulation system, and avoids the use of the existing plug-in system to deliver coolant, reducing equipment maintenance frequency and improving production stability.

[0029] Before molding module 2 moves from the medium-temperature rapid cooling zone to the low-temperature cooling zone (the side of the plastic corrugated pipe mold closing position away from the extruder), that is, before the control valve 10 corresponding to molding module 2 moves with the transmission pipe 5 to the outside of the through groove 701, control valve 10 closes, and then the solenoid valve on the corresponding connecting pipe 9 opens. At this time, the coolant in molding module 2, which is closest to the low-temperature cooling zone in the medium-temperature rapid cooling zone, is discharged into the next molding module 2 (located in the low-temperature cooling zone) through the connecting pipe 9, and then discharged into the next molding module 2 through the connecting pipe 9 connected to the next molding module 2, and so on. As the circulating chain system 1 circulates the coolant to the high-temperature slow-cooling zone (the side of the plastic corrugated pipe mold closing position near the extruder), the coolant in the high-temperature slow-cooling zone of the molding module 2 is used to neutralize the coolant temperature in the low-temperature cooling zone of the molding module 2. Furthermore, the heat-conducting plate 204 conducts heat to neutralize the coolant in the arc-shaped cavity 203 and the liquid storage cavity 202, ensuring the cooling effect of the low-temperature cooling zone of the molding module 2. This minimizes the temperature of the coolant in the low-temperature cooling zone of the molding module 2, allowing it to be directly fed into the external coolant circulation system after cooling. Temperature regulation is implemented to reduce energy waste. Simultaneously, the coolant temperature is monitored by a temperature sensor on the arc-shaped baffle 201. When necessary, the solenoid valves on the flow control pipe 11 in the medium-temperature rapid cooling zone and the low-temperature cooling zone, as well as the solenoid valve on the upper connecting pipe 6 of the molding module 2 requiring temperature regulation, are opened. This allows some coolant from the transmission pipe 5 to be directed into the molding module 2 requiring temperature regulation, facilitating the adjustment of the cooling effect of the designated molding module 2, ensuring the molding quality of the plastic corrugated pipe, and avoiding energy waste. Meanwhile, in the high-temperature slow cooling zone... The solenoid valve on the connecting pipe 9 is in the closed state. Before entering the medium-temperature rapid cooling zone from the high-temperature slow cooling zone, the solenoid valve on the connecting pipe 9 connected to the molding module 2 and the solenoid valve on the lower connecting pipe 6 are opened. In the same way as above, the coolant used in the molding module 2 near the high-temperature slow cooling zone in the medium-temperature rapid cooling zone is discharged into the previous molding module 2 through the connecting pipe 9 for replacement. In this way, the coolant in the previous molding module 2 is pre-temperature adjusted so that it can quickly achieve the preset cooling effect after entering the medium-temperature rapid cooling zone, ensuring the cooling effect while reducing energy consumption.

[0030] After mold separation, the temperature of the coolant in the molding module 2 is continuously monitored. As the circulating chain system 1 drives the molding module 2 to the liquid guiding module on the opposite side of the mold closing position, if the coolant temperature meets the cooling requirements of the high-temperature slow cooling zone, it is equivalent to directly using the coolant used in the low-temperature cooling zone to cool the corrugated pipe in the high-temperature slow cooling zone. This achieves stepped zoned cooling. Based on the different sensitivities of the corrugated pipe to temperature gradients at different cooling stages, a high-temperature slow cooling zone, a medium-temperature rapid cooling zone, and a low-temperature uniform cooling zone are set up. In this way, during the continuous production of plastic corrugated pipes, energy consumption is reduced while avoiding quality problems caused by rapid cooling of the high-temperature corrugated pipes due to the direct use of low-temperature coolant. If temperature adjustment is required, the coolant is replaced by the cooperation of the upper and lower liquid guiding modules by opening the corresponding control valve 10 and the solenoid valve on the connecting pipe 6 to achieve the specified temperature adjustment.

[0031] Although the invention has been described with reference to exemplary embodiments, it should be understood that the invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation so as to cover all variations and equivalent structures and functions.

Claims

1. A plastic corrugated pipe production equipment, characterized in that, include: The circulating chain system (1) has two components, which are mainly composed of a drive mechanism, a guide rail mechanism, several module mounting bases and several forming modules (2). Each forming module (2) is detachably mounted on one of the module mounting bases. All forming modules (2) are hollow structures. Two synchronous infusion components are provided, which are respectively connected to the two circulating chain systems (1) and the molding modules (2) on them. When the corresponding molding modules (2) move, coolant is synchronously delivered to them. By delivering coolant to the molding modules (2) in the designated area, a stepped zoned cooling is formed. and A spraying assembly is provided in several units, which are respectively set in each of the molding modules (2) and connected to the synchronous liquid delivery assembly, for uniformly spraying coolant to the demolding area of ​​the molding module (2).

2. The plastic corrugated pipe production equipment according to claim 1, characterized in that, The synchronous infusion assembly includes: The transmission module has two parts, which are connected to the two transmission shafts (101) in the circulating chain system (1). The transmission module includes a mounting bracket (3) rotatably connected to the two transmission shafts (101), two transmission wheels (4) rotatably connected to the two transmission shafts (101) respectively, and a transmission tube (5) rotatably connected to the two transmission wheels (4). There are several connecting pipes (6), which are divided into upper and lower groups. The two groups of connecting pipes (6) are respectively connected to the transmission pipes (5) of the two transmission modules. Each molding module (2) is connected to one of the connecting pipes (6) of the two groups of connecting pipes (6). Each spraying component is connected to one of the upper connecting pipes (6). Each connecting pipe (6) is equipped with a solenoid valve. Two liquid guiding modules are provided, each connected to one of the two transmission modules. Both modules are positioned at the corresponding mold-closing positions of the two circulating chain systems (1). Each liquid guiding module includes an infusion box (7) fixed to the mounting bracket (3), an external pipe (8) communicating with the infusion box (7), and several control valves (10) communicating with the transmission pipe (5). The isolation module is provided in several parts, all of which are located inside the transmission pipe (5) and respectively between every two adjacent connecting pipes (6); The infusion box (7) is provided with an arc-shaped groove that fits with the transmission tube (5), and a through groove (701) that is directly opposite to the control valve (10) is opened in the arc-shaped groove. The infusion box (7) is slidably connected to the transmission tube (5). All the connecting tubes (6) are set as telescopic hoses. Each control valve (10) corresponds to one of the connecting tubes (6).

3. The plastic corrugated pipe production equipment according to claim 2, characterized in that, The isolation module includes a flow control tube (11), and a solenoid valve is installed inside the flow control tube (11).

4. The plastic corrugated pipe production equipment according to claim 2, characterized in that, Each transmission tube (5) is also provided with a liquid guiding module on the opposite side of the mold closing position of the two circulating chain systems (1).

5. The plastic corrugated pipe production equipment according to claim 2, characterized in that, The infusion box (7) has a sealing sheet (702) that fits into the transmission tube (5) in the arc-shaped groove.

6. The plastic corrugated pipe production equipment according to claim 2, characterized in that, The transmission tube (5) is provided with several limiting strips (501), and the infusion box (7) is provided with limiting grooves that correspond one-to-one with the several limiting strips (501) in the arc-shaped groove.

7. The plastic corrugated pipe production equipment according to claim 2, characterized in that, The synchronous infusion assembly also includes several connecting tubes (9). Each molding module (2) is connected to two connecting tubes (9). Every two adjacent molding modules (2) are connected through one connecting tube (9). All connecting tubes (9) are configured as telescopic hoses. Each connecting tube (9) is equipped with a solenoid valve.

8. The plastic corrugated pipe production equipment according to claim 2, characterized in that, The spraying assembly includes an arc-shaped partition (201) disposed in the molding module (2), a plurality of heat-conducting plates (204) fixedly connected to the arc-shaped partition (201), and a plurality of branch pipes (12) connected to the plurality of heat-conducting plates (204); wherein, the plurality of branch pipes (12) are connected to the connecting pipe (6), the plurality of heat-conducting plates (204) are respectively facing a plurality of peaks and troughs of the molding module (2), all the heat-conducting plates (204) are configured as hollow structures, and all the heat-conducting plates (204) are provided with a plurality of arc-shaped equidistant spray holes (2041) facing the demolding side of the molding module (2). The arc-shaped partition (201) divides the interior of the molding module (2) into a liquid storage chamber (202) and an arc-shaped chamber (203). All the spray holes (2041) are located in the arc-shaped chamber (203). The arc-shaped chamber (203) is connected to the two connecting pipes (9). The arc-shaped partition (201) is provided with a number of drainage holes (2011).

9. The plastic corrugated pipe production equipment according to claim 8, characterized in that, Each of the arc-shaped partitions (201) has several temperature sensors on both sides.

10. A plastic corrugated pipe production equipment according to any one of claims 8-9, characterized in that, All of the aforementioned arc-shaped partitions (201) are made of thermally conductive material.

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