CN107244055B

CN107244055B - Production system of spiral noise reduction pipe

Info

Publication number: CN107244055B
Application number: CN201710599920.3A
Authority: CN
Inventors: 刘建; 苏灿
Original assignee: Sichuan Yefeng Plastic Industry Co ltd
Current assignee: Sichuan Yefeng Plastic Industry Co ltd
Priority date: 2017-07-21
Filing date: 2017-07-21
Publication date: 2023-08-29
Anticipated expiration: 2037-07-21
Also published as: CN107244055A

Abstract

The invention discloses a production system of a spiral noise reduction pipe, which comprises a feeding device, a hot melting device and a forming device, wherein the feeding device, the hot melting device and the forming device are respectively arranged on a base and are sequentially communicated according to a material circulation sequence, the hot melting device and the forming device are communicated through a pipeline, and the pipeline is provided with an upward bent U-shaped pipeline. The beneficial effects of the invention are as follows: the invention can avoid the problems of low strength, easy cracking, damage and the like of the pipeline caused by bubbles, thereby being beneficial to improving the production quality of the pipeline, ensuring the use safety of users, and avoiding the problems of reinstallation and the like in the later period.

Description

Production system of spiral noise reduction pipe

Technical Field

The invention relates to the field of silencer pipes, in particular to a production system of a spiral noise reduction pipe.

Background

With the development of science and technology and the improvement of the living standard of people, living conditions are required to be improved and improved, such as a wide and bright house, living and working environments are also required to be good, air is fresh and clean, and no smoke, waste gas, dust pollution and noise pollution are caused. Noise in this context is mainly referred to as noise generated by flowing objects in the pipes of a factory or building. In the present conveying pipelines, most of the conveying pipelines are single pipes, and when the conveying pipelines convey flowing objects, large noise is generated, and the noise is almost transmitted out without reservation, so that noise pollution of surrounding environment is caused. Therefore, some manufacturers can produce double-wall pipelines or three-layer composite PVC (polyvinyl chloride) pipelines aiming at the problem of large noise of a single pipe, but the problems of coarse inner wall, poor pipeline circulation capability, unsmooth pipeline circulation, easy blockage and the like exist, and especially the problems of material consumption, high cost, high price and the like are unacceptable to pipeline users, so that the double-wall pipeline or three-layer composite PVC pipelines are difficult to popularize and apply.

In addition, the existing pipeline forming process and forming equipment can only process a single pipe, and in the processing process, the consumed energy, namely heat energy, is high, and the generated waste gas seriously pollutes the surrounding environment and endangers the health of operators. The inside of the processed pipeline has the defects of air holes and the like, so that the pipeline is easy to damage in the use process.

Disclosure of Invention

The invention aims to provide a production system of a spiral noise reduction pipe, which is beneficial to reducing waste gas and preventing air hole defects of a pipeline.

The invention is realized by the following technical scheme: the utility model provides a production system of pipe of making an uproar falls in spiral, includes feeding device, hot melt device and the forming device that can make spiral pipe shaping that set up respectively on the base and communicate in proper order according to the material circulation order, hot melt device and forming device pass through the pipeline intercommunication, the pipeline on be provided with the U type pipeline of upwards bending. According to the scheme, the U-shaped pipeline is designed on the pipeline, so that air in molten liquid moves upwards to separate from the molten liquid when the molten liquid such as PVC after hot melting passes through the U-shaped pipeline, and a separate space composed of gas is formed at the top of the U-shaped pipeline, so that the defects of bubbles, internal cracks and the like in the formed pipeline are avoided, and the quality of products and the safety performance of use are improved.

The cross-sectional area of the U-shaped pipeline passing through the vertex of the U-shaped pipeline is larger than that of the pipeline. Therefore, the space for accommodating the gas can be increased, and defects such as bubbles and internal cracks in the pipeline caused by the fact that part of gas is pressed into the molten liquid due to the increase of the air pressure after the gas in the U-shaped pipeline is increased are avoided.

The top end of the U-shaped pipeline is communicated with an exhaust pipe with a sealing plug. The exhaust pipe is arranged to periodically exhaust the gas of the U-shaped pipeline, so that the defects of bubbles, internal cracks and the like in the pipeline caused by the fact that part of gas is pressed into the molten liquid due to the increase of the gas pressure are avoided. The gas in the U-shaped pipeline is conveniently collected through the exhaust pipe, and the molten liquid is likely to release certain toxic gas and be mixed into the gas in the U-shaped pipeline, so that the toxic gas can be prevented from being discharged into the atmosphere to cause pollution or poisoning of staff through collecting the toxic gas.

The forming device comprises a fixed die communicated with the pipeline and internally provided with a fixed die blind hole, a movable die rotatably arranged at the bottom of the fixed die blind hole and rotatably arranged in the blind hole, and a cooling water pipe wound on one side of the fixed die far away from the pipeline; the bottom of the fixed die blind hole is close to the pipeline; the movable die is characterized in that a thread die which is in an annular shape and provided with a thread groove is arranged on the outer side of the movable die, and the thread die is located between the head end and the tail end of the cooling water pipe which is wound on the fixed die part. The processing of screw thread can be realized to this scheme utilization movable mould and cover half's relative rotation, and it has simple structure, convenient to use's advantage, can make the pipe one shot forming that falls of spiral to can realize continuous production, be favorable to improving production efficiency.

The cooling water pipe is characterized in that water for cooling in the cooling water pipe flows from one end far away from the pipeline to one end close to the pipeline. Therefore, the molten liquid can be gradually cooled and solidified in the flowing process of the fixed die blind hole, and the molten liquid has plasticity and can keep a stable shape when passing through the thread die, so that an internal thread with a noise reduction effect can be formed through contact with the thread die.

A movable die blind hole is formed in the movable die; an internal cooling pipeline with an internal cooling blind hole is arranged in the movable mould blind hole, a partition plate which divides the internal cooling blind hole into two non-communicated semi-cylindrical cavities is arranged in the internal cooling pipeline, and an annular partition plate which divides the semi-cylindrical cavities into a water inlet cavity and a water outlet cavity which are communicated with each other is arranged in the semi-cylindrical cavities; the cross sectional areas of the water inlet cavity and the water outlet cavity are the same. Therefore, the molten liquid or the formed pipeline can be cooled simultaneously, and the difference of internal and external shrinkage caused by different internal and external cooling is avoided, so that cracking caused by different shrinkage can be prevented, and the production quality is improved.

Also included is an orthopedic structure; the correcting structure comprises a correcting cylinder rotatably arranged on a base, the correcting cylinder is positioned at one end where an opening of a blind hole of a fixed die is positioned, a correcting through hole which is coaxial with the blind hole of the fixed die and has the same diameter is formed in the correcting cylinder, and a correcting driven gear for transmission is arranged on the correcting cylinder. The correction structure is arranged to correct the shape of the formed pipeline, and the formed pipeline is subjected to friction extrusion by rotating the correction cylinder, so that the cylindricity of the formed pipeline is improved, the stress in the pipeline is eliminated, and the problems of later cracking and the like caused by the concentration of internal stress of the pipeline are prevented.

The one end that is close to the cover half blind hole of orthopedic section of thick bamboo be provided with the toper guiding hole, the tip and the correction through-hole intercommunication of toper guiding hole and coaxial constant diameter. Through setting up the toper guiding hole can make the pipeline conveniently enter into in the correction shape through-hole, is favorable to realizing continuous production.

One end of the orthopedic cylinder, which is far away from the blind hole of the fixed die, is provided with a cutting device; the cutting device comprises a cutting motor and a disc-shaped cutting knife in transmission connection with the cutting motor; the radius of the cutting knife is larger than the diameter of the orthopedic tube. Therefore, the cutting-off treatment can be performed at fixed time and fixed quantity, interference caused by overlong pipelines is avoided, and continuous production is facilitated.

One side of the disc-shaped cutting knife, which is far away from the orthopedic tube, is provided with a stabilizing tube, and a stabilizing hole which is coaxial with the shape correcting through hole and has the same diameter is arranged in the stabilizing tube. The stable cylinder is arranged to form a support for the cut pipeline, so that the pipeline is prevented from being damaged due to direct falling after being cut.

Compared with the prior art, the invention has the following advantages:

the invention can avoid the problems of low strength, easy cracking, damage and the like of the pipeline caused by bubbles, thereby being beneficial to improving the production quality of the pipeline, ensuring the use safety of users, and avoiding the problems of reinstallation and the like in the later period.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic view of the structure of the charging device and the hot melting device;

FIG. 3 is a schematic view of the structure of a U-shaped pipeline;

fig. 4 is a schematic structural view of embodiment 2;

fig. 5 is a schematic structural view of embodiment 3;

FIG. 6 is a schematic view of a molding apparatus;

FIG. 7 is a schematic diagram of a movable mold;

FIG. 8 is a left side view of the movable mold;

fig. 9 is a schematic structural view of embodiment 6;

FIG. 10 is a schematic view of the structure of an inner cooling pipe;

FIG. 11 is a front cross-sectional view of an inner cooling duct;

fig. 12 is a schematic structural view of embodiment 7;

fig. 13 is a schematic structural view of embodiment 8;

FIG. 14 is a schematic structural view of an orthopedic barrel;

FIG. 15 is a front cross-sectional view of an orthopedic cartridge;

fig. 16 is a schematic structural view of embodiment 9;

fig. 17 is a schematic structural view of embodiment 10;

FIG. 18 is a schematic view of a structure of the cutting device;

fig. 19 is a schematic structural view of embodiment 11;

the device comprises a 1-feeding device, a 11-feeding pipe, a 12-spiral feeding device, a 13-feeding hopper, a 2-hot melting device, a 21-hot melting pipe, a 22-heater, a 3-pipeline, a 31-U-shaped pipeline, a 32-exhaust pipe, a 33-feeding branch pipe, a 4-forming device, a 41-fixed die, a 42-movable die, a 43-cooling water pipe, a 44-thread die, a 45-thread groove, a 461-internal cooling pipeline, a 462-partition plate, a 463-annular partition plate, a 464-water inlet cavity, a 465-water outlet cavity, a 5-orthopedic structure, a 51-orthopedic cylinder, a 52-shape correcting driven gear, a 53-conical guide hole, a 6-cutting device, a 61-cutting motor, a 62-disc-shaped cutting knife and a 7-stabilizing cylinder.

Detailed Description

The present invention will be described in further detail with reference to examples, but embodiments of the present invention are not limited thereto.

Example 1:

as shown in fig. 1, in this embodiment, a production system of a spiral noise reduction pipe includes a feeding device 1, a hot melting device 2, and a forming device 4 capable of forming a spiral pipe, which are respectively provided on a base and are sequentially communicated in a material flow order. As shown in fig. 2, the feeding device 1 comprises a feeding pipe 11, a screw feeder 12 rotatably mounted in the feeding pipe 11, and a screw blade disposed on the feeding pipe 11 and communicated with the feeding pipe 11, wherein one end of the feeding pipe 11 is sealed, the feeding hopper is disposed above the sealed end, the feeding pipe 11 is filled with material through the feeding hopper 13, the screw feeder 12 is rotated to drive the feeding pipe 11 to move forward, the screw feeder 12 comprises a rotating shaft rotatably mounted on the feeding pipe 11 and a screw blade disposed on the rotating shaft, and the rotating shaft is connected with a motor. The feeding device 1 is in the prior art, and a person skilled in the art should know the specific structure and working principle thereof, so that the specific structure and working principle thereof will not be described in detail. The hot-melt apparatus 2 includes a hot-melt tube 21 communicating with the charging tube 11 and a heater 22 provided in the hot-melt tube 21. In this embodiment, the heater 22 employs a plurality of heating lamps. The screw feeder 12 delivers the material to a hot melt tube 21 which is heated by a heater 22 to melt to form a liquid. In this embodiment, the PVC particles are adopted for conveying materials, and other plastic particles can be melted through the scheme, so that the description is omitted here. The hot melting device 2 and the forming device 4 are communicated through a pipeline 3. The screw feeder 12 allows the material to flow only in one direction, and when the volume of molten metal in the hot melt pipe 21 reaches a certain level, the molten metal flows through the pipe 3 to the molding device 4. Because the air exists in the system, and the air enters the system from the charging hopper 13 during charging, bubbles or cracks are possibly formed in the product formed in the later stage due to the fact that the air is mixed in the molten liquid, so that the obtained product is low in strength, poor in quality and easy to damage, and is unfavorable for users. As shown in fig. 3, in this embodiment, the pipe 3 is provided with an upwardly curved U-shaped pipe 31. This scheme is through design U type pipeline 31 on the pipeline, can make the air in the molten liquid upwards remove and break away from with the molten liquid when the molten liquid such as PVC after the hot melt passes through U type pipeline 31 to form solitary space by gas constitution at the top of U type pipeline 31, thereby avoid defect such as bubble, inside crackle appear in the pipeline after the shaping, be favorable to improving the quality of product and the security performance of using.

Example 2:

as shown in fig. 4, in the above embodiment, the cross-sectional area of the U-shaped pipe 31 passing through the apex of the U-shaped pipe 31 is larger than the cross-sectional area of the pipe 3. Thereby creating a larger space at the top of the U-shaped channel 31 to accommodate more gas and thereby prevent the gas from re-entering the melt due to the increased build-up of high pressure. In this embodiment, other undescribed matters are the same as those of the above embodiment, so they are not repeated.

Example 3:

as shown in fig. 5, in the embodiment 2, the top end of the U-shaped pipe 31 is connected to an exhaust pipe 32 with a sealing plug. By providing the exhaust pipe 32, the gas in the U-shaped pipeline is conveniently collected, and the molten liquid is likely to release certain toxic gas and be mixed into the gas in the U-shaped pipeline, so that the toxic gas can be prevented from being discharged into the atmosphere to cause pollution or worker poisoning by collecting the toxic gas. In this embodiment, the exhaust pipe 32 is made of glass or transparent ceramic, so that the inside of the U-shaped pipe 31 can be observed. The exhaust pipe 32 is in sealing connection with the U-shaped pipe 31 by means of a sealing ring or a sealing gasket, and the specific structure, the installation process and the working principle thereof are known to those skilled in the art, so that they are not described in detail. In this embodiment, other undescribed matters are the same as those of the above embodiment, so they are not repeated.

Example 4:

as shown in fig. 6, in the present embodiment, the molding device 4 includes a fixed mold 41 which is communicated with the pipe 3 and has a fixed mold blind hole therein, a movable mold 42 rotatably mounted to the bottom of the fixed mold blind hole to be rotatably disposed in the blind hole, and a cooling water pipe 43 wound around a side of the fixed mold 41 remote from the pipe 3. The bottom of the fixed die blind hole is close to the pipeline 3. The pipeline 3 guides the molten liquid to one side of the bottom of the blind hole of the fixed die, and gradually increases to fill the blind hole of the fixed die, and the cooling water pipe 43 cools the molten liquid, so that the pipeline is formed. The inlet end of the cooling water pipe 43 is connected with cooling water, the outlet end of the cooling water pipe 43 is connected with a recovery water tank, the specific structure is the prior art, and the technical content recorded in the scheme can be implemented according to the scheme by a person skilled in the art without being taken as an improvement point of the scheme, so that the specific structure is not repeated. The outside of the movable die 42 is provided with a thread die 44 which is arranged in a ring shape and provided with a thread groove 45, and the thread die 44 is positioned between the head end and the tail end of the part of the fixed die 41, which is wound by the cooling water pipe 43. Thus, by cooling and qualifying the melt, the fixed product passes through the thread die 44 to form a thread structure with a cross section matched with the thread groove 45 on the inner surface of the product, and the finished spiral noise reduction pipeline can be obtained after the complete cooling. The movable mold 42 is in transmission connection with the motor to realize the rotation function, and the specific transmission connection mode and structure thereof are common knowledge and conventional means of those skilled in the art, and are not improvement points of the present solution, and those skilled in the art can implement the technical content described in the present solution according to the present solution, so that the specific structure and working principle thereof will not be described in detail. The processing of screw thread can be realized to this scheme utilization movable mould 42 and cover half 41's relative rotation, and it has simple structure, convenient to use's advantage, can make the pipe one shot forming that falls of spiral to can realize continuous production, be favorable to improving production efficiency. In this embodiment, other undescribed matters are the same as those of the above embodiment, so they are not repeated.

Example 5:

on the basis of the above embodiment, in the present embodiment, the cooling water pipe 43 is configured such that the cooling water flows from the end far from the pipe 3 to the end near the pipe 3. The cooling water pipe 43 gradually weakens the cooling of the product from one end far away from the pipeline 3 to one end close to the pipeline 3, so that the cooling water pipe is beneficial to enabling the product to be contacted with cooling liquid with higher temperature in preference to the flowing process, the reduced temperature is lower, uneven shrinkage caused by sudden temperature drop is avoided, and defects such as cracks and the like caused by uneven shrinkage are avoided. And facilitates the product to have a fixed shape through the thread die 44 but also maintains a comparable shape, thereby facilitating deformation to form a thread structure that provides noise reduction. In this embodiment, other undescribed matters are the same as those of the above embodiment, so they are not repeated.

Example 6:

as shown in fig. 9, in the embodiment, a blind hole of the movable mold is provided in the movable mold 42. An inner cooling pipeline 461 with an inner cooling blind hole is arranged in the movable mould blind hole. As shown in fig. 10 and 11, the inner cooling pipe 461 is provided with a partition 462 dividing the inner cooling blind hole into two non-intercommunicated semi-cylindrical cavities, and the semi-cylindrical cavity is provided with an annular partition 463 dividing the semi-cylindrical cavity into an inlet cavity 464 and an outlet cavity 465 which are intercommunicated. The inlet 464 and outlet 465 have the same cross-sectional area. Through injecting the coolant into the water inlet cavity 464, the coolant flows out through the water outlet cavity 465, and the structure of injecting the coolant and recycling the coolant is the prior art, and is not taken as an improvement point of the scheme, and a person skilled in the art can implement the technical content recorded in the scheme according to the scheme, so specific structure and working principle thereof are not repeated. Through using the coolant liquid to cool off the inside of product, avoid the product inside and outside uneven and lead to the shrink inhomogeneous of cooling to this quality that can improve the product. The cross sectional areas of the water inlet cavity 464 and the water outlet cavity 465 are the same, so that the flow rates of the water inlet cavity 464 and the water outlet cavity 465 are the same, the condition that the cooling liquid is not filled in the water outlet cavity 465 is avoided, and uneven shrinkage caused by uneven cooling in the product is avoided. Thereby being beneficial to ensuring the quality of the product. In this embodiment, other undescribed matters are the same as those of the above embodiment, so they are not repeated.

Example 7:

as shown in fig. 12, in this embodiment, two branch pipes are disposed at the outlet end of the pipe 3, and the two branch pipes are respectively connected to the upper and lower sides of the fixed mold 41 near the bottom, and melt is injected into the fixed mold 41 through the two branch pipes at the same time, so that the product forming can be accelerated, and the production efficiency can be improved. In this embodiment, other undescribed matters are the same as those of the above embodiment, so they are not repeated.

Example 8:

as shown in fig. 13, in this embodiment, an orthopedic structure 5 is further included on the basis of the above embodiment. As shown in fig. 14 and 15, the orthopedic structure 5 includes an orthopedic cylinder 51 rotatably mounted on a base, the orthopedic cylinder 51 is located at one end of an opening of a blind hole of a fixed die, a shape correcting through hole coaxial with the blind hole of the fixed die and having the same diameter is arranged in the orthopedic cylinder 51, and a shape correcting driven gear 52 for transmission is arranged on the orthopedic cylinder 51. The shape correcting driven gear 52 is connected with the motor in a driving way. The specific transmission connection mode and structure thereof are common knowledge and conventional means of those skilled in the art, and are not taken as improvement points of the scheme, and those skilled in the art can implement the technical content described in the scheme according to the scheme, so that the specific structure and working principle thereof are not repeated. After the spiral noise reduction pipe formed after cooling passes through the fixed die blind hole, the spiral noise reduction pipe is led to enter the correction through hole, the motor drives the correction cylinder 51 to rotate, the correction through hole rotates relative to the spiral noise reduction pipe to rub and extrude the spiral noise reduction pipe, if the spiral noise reduction pipe is deformed relative to circular deformation or uneven mass distribution, the spiral noise reduction pipe can be corrected through the rotation of the correction through hole, so that cylindricity of the spiral noise reduction pipe is improved, the quality distribution of the spiral noise reduction pipe is guaranteed to be even, and in the later use, stress can be even, and therefore the use safety performance is improved. In this embodiment, other undescribed matters are the same as those of the above embodiment, so they are not repeated.

Example 9:

in this embodiment, as shown in fig. 16, on the basis of embodiment 8, a conical guide hole 53 is provided at one end of the orthopedic cylinder 51 near the blind hole of the fixed mold, and the small end of the inner hole of the conical guide hole 53 is communicated with the calibrated through hole and has a coaxial constant diameter. The spiral noise reduction pipe can conveniently enter the shape correction through hole by arranging the conical guide hole 53, and automation and continuous production are facilitated. In this embodiment, other undescribed matters are the same as those of the above embodiment, so they are not repeated.

Example 10:

as shown in fig. 17, in the embodiment 8, a cutting device 6 is disposed at one end of the orthopedic cylinder 51 far from the blind hole of the fixed mold. As shown in fig. 18, the cutting device 6 includes a cutting motor 61 and a disc-shaped cutting blade 62 drivingly connected to the cutting motor 61. The radius of the cutting blade 62 is greater than the diameter of the orthopedic barrel 51. The cutting motor 61 is positioned at one side of the orthopedic tube 51, the cutting motor 61 is connected with a feeding mechanism in a transmission way, and the feeding mechanism controls the cutting motor 61 to move towards or away from the orthopedic tube 51, so that the disc-shaped cutting knife 62 is driven to cut off the spiral noise reduction tube or leave the spiral noise reduction tube. The feeding mechanism adopts one of a hydraulic cylinder, a pneumatic cylinder, a linear motor, a gear rack mechanism and a screw rod mechanism. The specific transmission connection mode and structure thereof are common knowledge and conventional means of those skilled in the art, and are not taken as improvement points of the scheme, and those skilled in the art can implement the technical content described in the scheme according to the scheme, so that the specific structure and working principle thereof are not repeated. The spiral noise reduction pipe can be cut off according to specific needs or timing and quantification by arranging the cutting device 6 so as to meet different use requirements.

Example 11:

as shown in fig. 19, in the embodiment 10, a stabilizing cylinder 7 is disposed on a side of the disc-shaped cutter 62 away from the orthopedic cylinder 51, and a stabilizing hole having the same diameter as the shape correction through hole is disposed in the stabilizing cylinder 7. The stability tube 7 can form a support for the cut spiral noise reduction tube, so that the spiral noise reduction tube is prevented from being directly dropped to cause damage after being cut.

The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent variation, etc. of the above embodiment according to the technical matter of the present invention fall within the scope of the present invention.

Claims

1. The utility model provides a production system of pipe of making an uproar falls in spiral, includes feeding device (1), hot melt device (2) and can make spiral pipe fashioned forming device (4), its characterized in that set up respectively on the base and communicate in proper order according to the circulation of materials order: the hot melting device (2) is communicated with the forming device (4) through a pipeline (3), and the pipeline (3) is provided with a U-shaped pipeline (31) which is bent upwards; the cross section area of the U-shaped pipeline (31) passing through the top of the U-shaped pipeline (31) is larger than the cross section area of the pipeline (3); the top end of the U-shaped pipeline (31) is communicated with an exhaust pipe (32) with a sealing plug; the exhaust pipe (32) is made of glass or transparent ceramic, so that the condition inside the U-shaped pipeline (31) can be observed, and the exhaust pipe (32) is in sealing connection with the U-shaped pipeline (31) through a sealing ring or a sealing gasket.

2. A spiral noise reduction tube production system as defined in claim 1, wherein: the forming device (4) comprises a fixed die (41) communicated with the pipeline (3) and internally provided with a fixed die blind hole, a movable die (42) rotatably arranged in the blind hole and rotatably arranged at the bottom of the fixed die blind hole, and a cooling water pipe (43) wound on one side of the fixed die (41) far away from the pipeline (3); the bottom of the fixed die blind hole is close to the pipeline (3); the outside of movable mould (42) be provided with be annular setting and have screw thread mould (44) of screw thread groove (45), screw thread mould (44) be located cooling water pipe (43) and twine between the head and the tail both ends of cover half (41) part.

3. A spiral noise reduction tube production system as defined in claim 2, wherein: the cooling water pipe (43) is characterized in that water for cooling flows from one end far away from the pipeline (3) to one end close to the pipeline (3).

4. A spiral noise reduction tube production system according to claim 3, wherein: a movable die blind hole is formed in the movable die (42); an inner cooling pipeline (461) with an inner cooling blind hole is arranged in the movable mould blind hole, a partition plate (462) which divides the inner cooling blind hole into two non-communicated semi-cylindrical cavities is arranged in the inner cooling pipeline (461), and an annular partition plate (463) which divides the semi-cylindrical cavities into a water inlet cavity (464) and a water outlet cavity (465) which are communicated with each other is arranged in the semi-cylindrical cavities; the cross-sectional areas of the water inlet cavity (464) and the water outlet cavity (465) are the same.

5. A spiral noise reduction tube production system according to claim 3 or 4, wherein: also comprises an orthopedic structure (5); the correcting structure (5) comprises a correcting cylinder (51) rotatably arranged on a base, the correcting cylinder (51) is positioned at one end of an opening of a blind hole of a fixed die, a correcting through hole which is coaxial with the blind hole of the fixed die and has the same diameter is formed in the correcting cylinder (51), and a correcting driven gear (52) for transmission is arranged on the correcting cylinder (51).

6. The production system of the spiral noise reduction tube according to claim 5, wherein: one end of the orthopedic cylinder (51) close to the blind hole of the fixed die is provided with a conical guide hole (53), and the small end of the inner hole of the conical guide hole (53) is communicated with the shape correcting through hole and has coaxial equal diameter.

7. The production system of the spiral noise reduction tube according to claim 5, wherein: one end of the orthopedic cylinder (51) far away from the blind hole of the fixed die is provided with a cutting device (6); the cutting device (6) comprises a cutting motor (61) and a disc-shaped cutting knife (62) in transmission connection with the cutting motor (61); the radius of the cutting knife (62) is larger than the diameter of the orthopedic cylinder (51).

8. The production system of the spiral noise reduction tube according to claim 7, wherein: one side of the disc-shaped cutting knife (62) far away from the orthopedic tube (51) is provided with a stabilizing tube (7), and a stabilizing hole coaxial with the shape correction through hole and with the same diameter is arranged in the stabilizing tube (7).