Process for producing a double-walled corrugated pipe and production line therefor

Abstract

The present application belongs to the technical field of corrugated pipes, and particularly relates to a production process of a double-wall corrugated pipe, comprising the following steps: S1: firstly, selecting suitable plastic materials and polishing, and then mixing and treating; S2: placing the plastic materials treated in S1 into an extrusion device, melting the plastic materials through high temperature and pressure, and then extruding a pipeline from an extrusion hole of a mold; S3: connecting the pipeline to a first supporting structure installed on a mounting cabinet, and then feeding the pipeline into a corrugated forming device installed on the mounting cabinet, processing the pipeline into a corrugated pipe by the corrugated forming device, and then moving the corrugated pipe from a second supporting structure; the present application has the beneficial effects that the pipeline is more compact and round on the outside, and the corrugated pipe is stable in external forming.

Description

Technical Field

[0001] This invention relates to the field of corrugated pipe technology, and in particular to a manufacturing process and production line for double-wall corrugated pipes. Background Technology

[0002] High-density polyethylene double-wall corrugated pipe is a new type of pipe with a ring-shaped outer wall and a smooth inner wall. It was first successfully developed in Germany in the early 1980s. After more than ten years of development and improvement, it has evolved from a single product to a complete product series. Currently, its production process and application technology are quite mature.

[0003] In existing technologies, most corrugated pipe production equipment does not provide support for the pipe body during corrugation formation, resulting in unstable support during corrugation forming and causing deviations in corrugation formation. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a production process and production line for double-wall corrugated pipes to solve the above problems.

[0005] In view of this, the present invention provides a manufacturing process for a double-walled corrugated pipe, comprising:

[0006] S1: First, select a suitable plastic material and grind it, then mix the materials.

[0007] S2: The plastic material processed in S1 is placed into the extrusion device, which melts it under high temperature and pressure, and then extrudes it into a tube from the extrusion hole of the mold.

[0008] S3: Connect the pipe to the first support structure installed on the mounting cabinet, then send the pipe into the corrugated forming device installed on the mounting cabinet. After the corrugated forming device processes the pipe into a corrugated pipe, remove the corrugated pipe from the second support structure.

[0009] By adopting the above technical solution, the setting of S1 can make the quality of plastic materials better and more uniform, the setting of S2 can produce pipes, and the setting of S3 can make the pipes receive stable support during corrugation forming, so that the formed corrugations are more accurate and stable.

[0010] In the above technical solution, the further supporting structure includes:

[0011] A support plate is provided at the top of the mounting cabinet, and the support plate is provided with mounting holes;

[0012] The mounting slot is located at the bottom of the mounting hole;

[0013] Four first hydraulic cylinders, two of which have their fixed ends located on both sides of the top of the support plate and their output ends extending into the mounting hole, and the other two have their fixed ends located on both sides of the inner wall of the mounting groove and their output ends extending into the mounting hole.

[0014] Four connecting plates are respectively installed on the output ends of the four first hydraulic cylinders;

[0015] And two support shafts, which are rotatably connected to the corresponding two connecting plates;

[0016] The two support shafts are arranged in parallel, and the two support shafts are brought closer together or separated by a first hydraulic cylinder.

[0017] In this technical solution, the installation hole allows the pipe to pass through, the installation groove allows the first hydraulic cylinder to be installed, the first hydraulic cylinder allows the two connecting plates to move closer or separate from each other, thereby achieving the movement of the two support shafts. The connecting plate allows the support shafts to be installed.

[0018] In the above technical solution, the corrugated pipe forming device further includes:

[0019] The fixing block is located at the top of the mounting cabinet and on the side of the supporting structure away from the extrusion device;

[0020] A hollow cylindrical block, with its sidewalls mounted on the top of a fixed block;

[0021] The stabilizing forming mechanism has one end rotatably connected to the opening of the hollow cylindrical block facing the support structure, and the other end rotatably connected to the support plate facing the side of the hollow cylindrical block.

[0022] And a corrugated forming mechanism, which is rotatably connected to the end of the hollow cylindrical block that is away from the stable forming mechanism;

[0023] The stabilizing forming mechanism is used to extrude the outside of the pipe, and the corrugating forming mechanism is used to form corrugations on the pipe.

[0024] In this technical solution, the hollow cylindrical block can be installed by setting the fixing block. The hollow cylindrical block can also be installed by setting the stabilizing forming mechanism and the corrugating forming mechanism. The pipe first passes through the stabilizing forming mechanism, which squeezes the outer wall of the pipe to make the outer wall of the pipe more compact and rounded. The corrugating forming mechanism can form corrugations on the outer wall of the pipe.

[0025] In the above technical solution, the further stabilizing forming mechanism includes:

[0026] The limiting ring block has one end rotatably connected to the inner wall of the hollow cylindrical block facing the first support structure, and the other end extends away from the limiting ring block. The end wall of the limiting ring block is provided with a number of strip-shaped limiting holes arranged circumferentially around the central axis of the limiting ring block.

[0027] The first belt drive structure has a fixed end located inside the mounting cabinet and a drive end that passes through the mounting frame and is connected to the side wall of the limiting ring block.

[0028] The drive structure is rotatably connected to the limiting ring block and the support plate, respectively.

[0029] Several connecting structures, one end of which passes through the strip-shaped limiting hole and is connected to the driving structure, and the other end of which is respectively circumferentially set on the side of the limiting ring block away from the driving ring block;

[0030] And several extrusion rollers, each disposed at one end of the connecting structure away from the limiting ring block;

[0031] The driving structure is used to drive the connecting structure to move on the strip-shaped limiting hole, thereby causing several extrusion rollers to approach or separate from each other. The extrusion rollers are arc-shaped, and several extrusion rollers combine to form a circle after approaching each other.

[0032] In this technical solution, by setting the driving structure, the connecting structure can move within the strip-shaped limiting hole, thereby causing several extrusion rollers to approach or separate from each other, so that the extrusion rollers can form a complete circle or separate. When the circle is formed, the pipe is first slightly extruded and shaped, and the outer wall of the pipe is rounded by the movement of the pipe. The first belt drive structure can drive the limiting ring block to rotate. When the rotation speed of the limiting ring block is consistent with the driving speed of the driving structure, the extrusion rollers rotate.

[0033] In the above technical solution, the further connection structure includes:

[0034] The connecting rod has one end connected to the drive structure through the strip-shaped limiting hole, and the other end is located at the end of the limiting ring block that is away from the drive structure.

[0035] The connecting block is detachably connected to the connecting rod;

[0036] And two L-shaped plates, one end of which is connected to both sides of the connecting block, and the other end extends toward the central axis of the limiting ring block;

[0037] Among them, several of the extrusion rollers are respectively connected between two L-shaped plates.

[0038] In this technical solution, the connecting block allows for disassembly and replacement of the extrusion roller's size. The L-shaped plate enables the extrusion roller to be installed. The connecting rod allows the drive structure to move the connecting rod within the strip-shaped limiting hole, thereby achieving the movement of the extrusion roller.

[0039] In the above technical solution, the further driving structure includes:

[0040] A drive ring block is rotatably connected to the end of the limiting ring block away from the hollow cylindrical block. The end wall of the drive ring block facing the end of the limiting ring block is provided with a plurality of drive grooves arranged circumferentially around the central axis of the drive ring block.

[0041] The support ring has one end rotatably connected to the end of the drive ring block that is away from the limit ring block, and the other end rotatably connected to the support plate;

[0042] And a second belt drive structure, with the fixed end set inside the mounting cabinet and the drive end passing through the mounting cabinet and connected to the side wall of the drive ring block;

[0043] When the second belt drive structure drives the drive ring block to rotate, the drive groove drives the connecting rod to move within the strip-shaped limiting hole.

[0044] In this technical solution, when the second belt drive structure drives the drive ring block to rotate, the drive groove drives the connecting rod to rotate. Due to the cooperation between the strip-shaped limiting hole and the drive groove, the connecting rod can move along the length direction of the strip-shaped limiting hole. By setting the support ring, the rotation of the drive ring block can be made more stable. The drive groove is a vortex groove.

[0045] In the above technical solution, the corrugated forming mechanism further includes:

[0046] Rotate the ring block, which is rotatably connected to the end of the hollow cylindrical block that is away from the stabilizing forming mechanism;

[0047] A rotating disk is fixedly connected to one end of the rotating ring block away from the stabilizing forming mechanism, and the end of the rotating disk is provided with a through hole for the pipe to pass through;

[0048] The transmission gears are located on the outer wall of the rotating disk;

[0049] The drive motor has its fixed end set on the outer wall of the hollow cylindrical block, and its output end extends toward the transmission teeth.

[0050] The drive gear is located on the output end of the drive motor;

[0051] And a corrugated forming structure is set on the side of the rotating disk away from the hollow cylindrical block;

[0052] The drive gear is used to drive the transmission gear to rotate, thereby causing the corrugated forming structure to rotate.

[0053] In this technical solution, the rotating ring block provides support for the rotating disk, and the drive motor enables the drive gear to rotate the transmission gear, thereby rotating the rotating disk and ultimately rotating the corrugated structure to process the outer wall of the pipe.

[0054] In the above technical solution, the further corrugated forming structure includes:

[0055] The mounting ring is located at the end of the rotating disk opposite to the hollow cylindrical block.

[0056] Several second hydraulic cylinders, with their fixed ends connected to the outer wall of the mounting ring block in an annular arrangement, and their output ends all penetrating into the mounting ring block;

[0057] And several corrugated forming components, which are respectively installed on the output end of the second hydraulic cylinder;

[0058] The second hydraulic cylinder is used to drive the corrugated forming components to move closer together or separate from each other.

[0059] In this technical solution, the installation of the ring block enables the installation of the second hydraulic cylinder. The second hydraulic cylinder allows the corrugated forming components to move closer together or separate from each other, thereby achieving the processing of pipes with different diameters.

[0060] In the above technical solution, the corrugated forming component further includes:

[0061] The mounting column has one end connected to the output end of the second hydraulic cylinder and the other end extending away from the second hydraulic cylinder.

[0062] A threaded rod is threadedly connected to the output end of the mounting column opposite to the second hydraulic cylinder.

[0063] A connecting post is attached to the end of the threaded rod that is away from the mounting post.

[0064] And a forming wheel, which is rotatably connected to the end of the connecting column away from the threaded rod;

[0065] The shaped ball is used to create corrugations on the outer wall of the tube.

[0066] In this technical solution, the connecting column can be disassembled by setting the threaded rod, thereby achieving the size change of the forming wheel. The forming wheel can be used to corrugate the outer wall of the pipe. Attached Figure Description

[0067] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0068] Figure 1 This is a schematic diagram of the overall structure of a specific embodiment of the present invention;

[0069] Figure 2 This is a specific embodiment of the present invention. Figure 1 Enlarged view of point A in the middle;

[0070] Figure 3 This is a schematic diagram of the structure formed by the extrusion roller and the L-shaped plate in a specific embodiment of the present invention;

[0071] Figure 4 This is a schematic diagram of the limiting ring block structure according to a specific embodiment of the present invention;

[0072] Figure 5 This is a schematic diagram of the driving ring block structure according to a specific embodiment of the present invention.

[0073] Reference numerals: 1. Mounting cabinet; 2. Support plate; 3. Mounting hole; 4. Mounting groove; 5. First hydraulic cylinder; 6. Connecting plate; 7. Support shaft; 8. Fixing block; 9. Limiting ring block; 10. Strip-shaped limiting hole; 11. Extrusion roller; 12. Connecting rod; 13. Connecting block; 14. L-shaped plate; 15. Drive ring block; 16. Drive groove; 17. Support ring; 18. Second belt drive structure; 19. Rotating ring block; 20. Rotating disk; 21. Transmission gear; 22. Drive motor; 23. Drive gear; 24. Mounting ring block; 25. Second hydraulic cylinder; 26. Mounting column; 27. Threaded rod; 28. Connecting column; 29. ​​Forming wheel; 30. First belt drive structure. Detailed Implementation

[0074] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0075] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0076] It should be noted that the terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and are not limited in number; for example, the first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates an "or" relationship between the preceding and following objects as a production process and production line for a double-walled corrugated pipe.

[0077] It should be noted that in the description of this application, the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0078] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0079] Example 1:

[0080] This embodiment provides a manufacturing process for double-wall corrugated pipes, including:

[0081] S1: First, select a suitable plastic material and grind it, then mix the materials.

[0082] S2: The plastic material processed in S1 is placed into the extrusion device, which melts it under high temperature and pressure, and then extrudes it into a tube from the extrusion hole of the mold.

[0083] S3: Connect the pipe to the first support structure installed on the mounting cabinet 1, and then send the pipe into the corrugated forming device installed on the mounting cabinet 1. After the corrugated forming device processes the pipe into a corrugated pipe, the corrugated pipe is removed from the second support structure.

[0084] Setting S1 improves the quality and uniformity of the plastic material, setting S2 enables the production of pipes, and setting S3 provides stable support for the pipes during corrugation, resulting in more accurate and stable corrugations.

[0085] Example 2:

[0086] In this embodiment, in addition to the structural features included in the foregoing embodiments, the further supporting structure includes:

[0087] A support plate 2 is disposed on the top of the mounting cabinet 1, and the support plate 2 is provided with mounting holes 3;

[0088] Mounting slot 4 is located at the bottom of mounting hole 3;

[0089] Four first hydraulic cylinders 5, two of which have their fixed ends located on both sides of the top of the support plate 2 and their output ends extending into the mounting hole 3, and the other two have their fixed ends located on both sides of the inner wall of the mounting groove 4 and their output ends extending into the mounting hole 3.

[0090] Four connecting plates 6 are respectively installed on the output ends of the four first hydraulic cylinders 5;

[0091] And two support shafts 7, which are rotatably connected to the corresponding two connecting plates 6;

[0092] The two support shafts 7 are arranged in parallel, and the two support shafts 7 are brought closer or separated by the first hydraulic cylinder 5;

[0093] The installation hole 3 allows the pipe to pass through, the installation groove 4 allows the first hydraulic cylinder 5 to be installed, the first hydraulic cylinder 5 allows the two connecting plates 6 to move closer or separate from each other, thereby allowing the two support shafts 7 to move closer or separate. The connecting plate 6 allows the support shafts 7 to be installed.

[0094] Example 3:

[0095] In this embodiment, in addition to the structural features of the aforementioned embodiments, the corrugated pipe forming device further includes:

[0096] The fixing block 8 is located at the top of the mounting cabinet 1 and on the side of the support structure away from the extrusion device;

[0097] A hollow cylindrical block, with its sidewalls mounted on the top of the fixed block 8;

[0098] The stabilizing forming mechanism has one end rotatably connected to the opening of the hollow cylindrical block facing the support structure, and the other end rotatably connected to the support plate 2 facing the side of the hollow cylindrical block.

[0099] And a corrugated forming mechanism, which is rotatably connected to the end of the hollow cylindrical block that is away from the stable forming mechanism;

[0100] The stabilizing forming mechanism is used to extrude the outside of the pipe, and the corrugating forming mechanism is used to form corrugations on the pipe.

[0101] The setting of fixing block 8 enables the installation of hollow cylindrical blocks, which in turn enables the installation of stabilizing forming mechanism and corrugated forming mechanism. The pipe first passes through the stabilizing forming mechanism, which compresses the outer wall of the pipe to make it more compact and rounded. The setting of corrugated forming mechanism enables the outer wall of the pipe to form corrugations.

[0102] Example 4:

[0103] In this embodiment, in addition to the structural features included in the aforementioned embodiments, the further stabilizing forming mechanism includes:

[0104] The limiting ring block 9 has one end rotatably connected to the inner wall of the hollow cylindrical block facing the first support structure, and the other end extends away from the limiting ring block 9. The end wall of the limiting ring block 9 is provided with a plurality of strip-shaped limiting holes 10 arranged circumferentially around the central axis of the limiting ring block 9.

[0105] The first belt drive structure 30 has a fixed end set inside the mounting cabinet 1 and a drive end that passes through the mounting frame and is connected to the side wall of the limiting ring block 9.

[0106] The drive structure is rotatably connected to the limiting ring block 9 and the support plate 2, respectively.

[0107] Several connecting structures, one end of which passes through the strip-shaped limiting hole 10 and is connected to the driving structure, and the other end is respectively circumferentially set on the side of the limiting ring block 9 away from the driving ring block 15;

[0108] And several extrusion rollers 11, respectively disposed at one end of the connecting structure away from the limiting ring block 9;

[0109] The driving structure is used to drive the connecting structure to move on the strip-shaped limiting hole 10, so that a plurality of extrusion rollers 11 approach or separate from each other. The extrusion rollers 11 are arc-shaped, and a plurality of extrusion rollers 11 are combined into a circle after approaching each other.

[0110] By setting the drive structure, the connecting structure can move within the strip-shaped limiting hole 10, thereby causing the extrusion rollers 11 to approach or separate from each other, so that the extrusion rollers 11 can form a complete circle or separate. When the circle is formed, the pipe is first slightly extruded and shaped, and the outer wall of the pipe is rounded by the movement of the pipe. The first belt drive structure 30 can drive the limiting ring block 9 to rotate. When the rotation speed of the limiting ring block 9 is consistent with the driving speed of the drive structure, the extrusion rollers 11 rotate.

[0111] Example 5:

[0112] In this embodiment, in addition to the structural features included in the foregoing embodiments, the further connection structure includes:

[0113] The connecting rod 12 has one end passing through the strip-shaped limiting hole 10 and connected to the drive structure, and the other end is located at the end of the limiting ring block 9 that is away from the drive structure.

[0114] Connecting block 13 is detachably connected to connecting rod 12;

[0115] And two L-shaped plates 14, one end of which is connected to both sides of the connecting block 13, and the other end extends toward the central axis of the limiting ring block 9;

[0116] The extrusion rollers 11 are respectively connected between two L-shaped plates;

[0117] The connecting block 13 allows for disassembly and replacement of the size of the extrusion roller 11. The L-shaped plate 14 enables the extrusion roller 11 to be installed. The connecting rod 12 allows the drive structure to move the connecting rod 12 within the strip-shaped limiting hole 10, thereby enabling the extrusion roller 11 to move.

[0118] Example 6:

[0119] In this embodiment, in addition to the structural features included in the foregoing embodiments, the further driving structure includes:

[0120] The driving ring block 15 is rotatably connected to the end of the limiting ring block 9 that is away from the hollow cylindrical block. The end wall of the driving ring block 15 facing the end of the limiting ring block 9 is provided with a plurality of driving grooves 16 arranged circumferentially around the central axis of the driving ring block 15.

[0121] The support ring 17 is rotatably connected at one end to the end of the drive ring block 15 that is away from the limit ring block 9, and at the other end to the support plate 2.

[0122] And the second belt drive structure 18, the fixed end is set in the mounting cabinet 1, and the drive end passes through the mounting cabinet 1 and is connected to the side wall of the drive ring block 15;

[0123] When the second belt drive structure 18 drives the drive ring block 15 to rotate, the drive groove 16 drives the connecting rod 12 to move within the strip-shaped limiting hole 10.

[0124] When the second belt drive structure 18 drives the drive ring block 15 to rotate, the drive groove 16 drives the connecting rod 12 to rotate. Due to the cooperation between the strip-shaped limiting hole 10 and the drive groove 16, the connecting rod 12 can move along the length direction of the strip-shaped limiting hole 10. Through the setting of the support ring 17, the drive ring block 15 can rotate more stably. The drive groove 16 is a vortex groove.

[0125] Example 7:

[0126] In this embodiment, in addition to the structural features of the aforementioned embodiments, the corrugated forming mechanism further includes:

[0127] Rotate the ring block 19, which is rotatably connected to the end of the hollow cylindrical block that is away from the stabilizing forming mechanism;

[0128] A rotating disk 20 is fixedly connected to one end of the rotating ring block 19 away from the stabilizing forming mechanism. The end of the rotating disk 20 is provided with a through hole for the pipe to pass through.

[0129] The transmission gear 21 is disposed on the outer side wall of the rotating disk 20;

[0130] The drive motor 22 has its fixed end set on the outer wall of the hollow cylindrical block, and its output end extends toward the transmission gear 21.

[0131] The drive gear 23 is located on the output end of the drive motor 22;

[0132] And a corrugated forming structure is provided on the side of the rotating disk 20 away from the hollow cylindrical block;

[0133] The drive gear 23 is used to drive the transmission gear 21 to rotate, thereby driving the corrugated forming structure to rotate.

[0134] By setting the rotating ring block 19, the rotating disk 20 can be supported. By setting the drive motor 22, the drive gear 23 can drive the transmission gear 21 to rotate, thereby making the rotating disk 20 rotate, and finally making the corrugated forming structure rotate, so as to process the outer wall of the pipe.

[0135] Example 8:

[0136] In this embodiment, in addition to the structural features included in the aforementioned embodiments, the further corrugated forming structure includes:

[0137] The mounting ring 24 is located at one end of the rotating disk 20 away from the hollow cylindrical block;

[0138] Several second hydraulic cylinders 25 have their fixed ends connected to the outer wall of the mounting ring block 24, which is annularly arranged, and their output ends all penetrate into the mounting ring block 24.

[0139] And several corrugated forming components, which are respectively installed on the output end of the second hydraulic cylinder 25;

[0140] The second hydraulic cylinder 25 is used to drive the corrugated forming components to move closer together or separate from each other;

[0141] By installing the ring block 24, the second hydraulic cylinder 25 can be installed. The second hydraulic cylinder 25 can make the corrugated forming components move closer together or separate from each other, thereby achieving the processing of pipes with different diameters.

[0142] Example 9:

[0143] In this embodiment, in addition to the structural features of the aforementioned embodiments, the corrugated forming component further includes:

[0144] Mounting post 26, one end of which is connected to the output end of the second hydraulic cylinder 25, and the other end extends away from the second hydraulic cylinder 25;

[0145] The threaded rod 27 is threadedly connected to the output end of the mounting post 26 that is away from the second hydraulic cylinder 25;

[0146] Connecting post 28 is connected to the end of threaded rod 27 that is away from mounting post 26;

[0147] And forming wheel 29, which is rotatably connected to the end of connecting post 28 away from threaded rod 27;

[0148] The shaped ball is used to create corrugations on the outer wall of the tube.

[0149] The threaded rod 27 allows the connecting column 28 to be disassembled, thereby enabling the forming wheel 29 to be changed in size. The forming wheel 29 allows the outer wall of the pipe to be corrugated. During the corrugation process, the pipe is stationary and does not move.

[0150] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A manufacturing process for a double-walled corrugated pipe, characterized in that, include: S1: First, select a suitable plastic material and grind it, then mix the materials. S2: The plastic material processed in S1 is placed into the extrusion device, which melts it under high temperature and pressure, and then extrudes the material into a tube through the extrusion hole of the mold. S3: Connect the pipe to the first support structure installed on the mounting cabinet (1), and then send the pipe into the corrugated forming device installed on the mounting cabinet (1). After the corrugated forming device processes the pipe into a corrugated pipe, the corrugated pipe is removed from the second support structure. The support structure includes: a support plate (2) disposed on the top of the mounting cabinet (1), and the support plate (2) is provided with mounting holes (3); The mounting groove (4) is located at the bottom of the mounting hole (3); Four first hydraulic cylinders (5), two of which have their fixed ends set on both sides of the top of the support plate (2) and their output ends pass through the mounting hole (3), and the other two have their fixed ends set on both sides of the inner wall of the mounting groove (4) and their output ends extend into the mounting hole (3). Four connecting plates (6) are respectively set on the output ends of the four first hydraulic cylinders (5); And two support shafts (7), which are rotatably connected to the corresponding two connecting plates (6); Among them, the two support shafts (7) are arranged in parallel, and the two support shafts (7) are brought closer or separated by the first hydraulic cylinder (5); The corrugated forming device includes: a fixing block (8), which is located at the top of the mounting cabinet (1) and on the side of the support structure away from the extrusion device; A hollow cylindrical block, with its sidewalls mounted on the top of a fixed block (8); The stabilizing forming mechanism has one end rotatably connected to the opening of the hollow cylindrical block facing the support structure, and the other end rotatably connected to the support plate (2) facing the side of the hollow cylindrical block. And a corrugated forming mechanism, which is rotatably connected to the end of the hollow cylindrical block that is away from the stable forming mechanism; The stabilizing forming mechanism is used to extrude the outside of the pipe, and the corrugating forming mechanism is used to form corrugations on the pipe. The stabilizing forming mechanism includes: a limiting ring block (9), one end of which is rotatably connected to the inner wall of the hollow cylindrical block facing the first support structure, and the other end extends away from the limiting ring block (9). The end wall of the limiting ring block (9) is provided with a plurality of strip-shaped limiting holes (10) arranged circumferentially around the central axis of the limiting ring block (9). The first belt drive structure (30) has a fixed end set inside the mounting cabinet (1) and a drive end connected to the side wall of the limiting ring block (9) through the mounting frame. The drive structure is rotatably connected to the limiting ring block (9) and the support plate (2), respectively; Several connecting structures, one end of which passes through the strip-shaped limiting hole (10) and is connected to the driving structure, and the other end is respectively arranged circumferentially on the side of the limiting ring block (9) away from the driving ring block (15); and several extrusion rollers (11), respectively arranged on the end of the connecting structure away from the limiting ring block (9); The driving structure is used to drive the connecting structure to move on the strip-shaped limiting hole (10), so that a number of extrusion rollers (11) approach or separate from each other. The extrusion rollers (11) are arc-shaped, and a number of extrusion rollers (11) are combined into a circle after approaching each other. The connection structure includes: a connecting rod (12), one end of which passes through a strip-shaped limiting hole (10) and is connected to the drive structure, and the other end is located at the end of the limiting ring block (9) away from the drive structure; The connecting block (13) is detachably connected to the connecting rod (12); And two L-shaped plates (14), one end of which is connected to both sides of the connecting block (13), and the other end extends toward the central axis of the limiting ring block (9); Among them, several of the extrusion rollers (11) are respectively connected between two L-shaped plates; The driving structure includes a driving ring block (15), which is rotatably connected to one end of the limiting ring block (9) away from the hollow cylindrical block. The end wall of the driving ring block (15) facing the end of the limiting ring block (9) is provided with a plurality of driving grooves (16) arranged circumferentially around the central axis of the driving ring block (15). The support ring (17) is rotatably connected at one end to the end of the drive ring block (15) that is away from the limit ring block (9), and at the other end to the support plate (2); And the second belt drive structure (18), the fixed end is set in the mounting cabinet (1), and the drive end passes through the mounting cabinet (1) and is connected to the side wall of the drive ring block (15); When the second belt drive structure (18) drives the drive ring block (15) to rotate, the drive groove (16) drives the connecting rod (12) to move within the strip-shaped limiting hole (10).

2. The manufacturing process of a double-wall corrugated pipe according to claim 1, characterized in that, The corrugated forming mechanism includes: Rotate the ring block (19), which is rotatably connected to the end of the hollow cylindrical block that is away from the stable forming mechanism; A rotating disk (20) is fixedly connected to one end of the rotating ring block (19) away from the stabilizing forming mechanism. The end of the rotating disk (20) is provided with a through hole for the pipe to pass through. The transmission gear (21) is disposed on the outer side wall of the rotating disk (20); The drive motor (22) has its fixed end set on the outer wall of the hollow cylindrical block, and its output end extends toward the transmission gear (21); the drive gear (23) is set on the output end of the drive motor (22); And a corrugated molding structure is provided on the side of the rotating disk (20) away from the hollow cylindrical block; The drive gear (23) is used to drive the transmission gear (21) to rotate, thereby driving the corrugated structure to rotate.

3. The manufacturing process of a double-wall corrugated pipe according to claim 2, characterized in that, The corrugated structure includes: Mounting ring block (24) is set at one end of the rotating disk (20) away from the hollow cylindrical block; a number of second hydraulic cylinders (25) are respectively connected to the fixed ends of the ring block (24) on the outer side wall of the mounting ring block (24), and the output ends of the cylinders are all inserted into the mounting ring block (24); and a number of corrugated forming components are respectively installed on the output ends of the second hydraulic cylinders (25); The second hydraulic cylinder (25) is used to drive the corrugated forming components to move closer together or separate from each other.

4. The manufacturing process of a double-wall corrugated pipe according to claim 3, characterized in that, The corrugated forming component includes: The mounting post (26) is connected at one end to the output end of the second hydraulic cylinder (25), and extends away from the second hydraulic cylinder (25) at the other end. A threaded rod (27) is threadedly connected to the output end of the mounting post (26) away from the second hydraulic cylinder (25); a connecting post (28) is connected to the end of the threaded rod (27) away from the mounting post (26); And forming wheel (29), which is rotatably connected to the end of connecting post (28) away from threaded rod (27); The forming wheel (29) is used to form corrugations on the outer wall of the tube.

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