Steel wire mesh skeleton pipe layer interfacial bonding reinforced steel wire winding extrusion molding equipment and process thereof

Abstract

This invention relates to the field of steel wire mesh reinforcement tube layer forming equipment, and discloses a steel wire winding extrusion molding equipment and process for reinforcing steel wire mesh reinforcement tube layers. The equipment includes a base, with a machine compartment fixedly connected to the top left side of the base, an injection molding assembly disposed on the left side of the base, a heating injector fixedly connected to the top right side of the base, a hopper fixedly connected to the top inner wall of the heating injector, an injection tube fixedly connected to the left side of the heating injector, an electrical box fixedly connected to the front right side of the inner wall of the base, and a mounting bracket fixedly connected to the rear top of the base. In this invention, the steel wire winding is precise and orderly, resulting in superior skeleton quality. Through the coordinated guidance of the guide cylinder and the winding assembly, orderly spiral winding of the steel wire is achieved, with uniform and consistent density, avoiding problems such as wire misalignment, looseness, and crossing. Combined with the constant tension control of the tensioning assembly, it prevents the steel wire from loosening or breaking, ensuring a regular steel wire skeleton structure and stable reinforcement effect.

Description

Technical Field

[0001] This invention relates to the field of equipment for forming skeleton tube layers, and more particularly to equipment and process for steel wire winding extrusion forming of steel wire mesh skeleton tube layers to enhance interlayer bonding. Background Technology

[0002] Steel wire mesh reinforced pipe, also known as steel wire mesh reinforced plastic (polyethylene) composite pipe, or simply steel wire mesh reinforced PE pipe, is a new type of composite pipe. It uses a mesh skeleton formed by spirally winding high-strength steel wire as reinforcement, high-density polyethylene (HDPE) as the matrix, and a high-performance adhesive resin layer to tightly connect the steel wire skeleton with the inner and outer HDPE layers. The reinforcement of the steel wire winding layers in steel wire mesh reinforced pipe relies on extrusion molding equipment. The steel wire skeleton and the plastic matrix become an inseparable whole, greatly improving the pipe's impact resistance and creep resistance, far exceeding that of ordinary plastic pipes and simple composite pipes.

[0003] Traditional molding equipment and processes mostly employ offline winding, which cannot directly complete the winding of the steel wire skeleton inside the mold. The skeleton must be wound separately before being transferred to the injection mold, resulting in cumbersome procedures, time-consuming transfers, and a significant reduction in overall production efficiency. The steel wire winding process lacks a precise guiding structure, leading to disordered and uneven wire arrangement, which easily causes problems such as skeleton misalignment and loosening, making it difficult to form a stable and regular reinforcing skeleton. The wound steel wire skeleton lacks a dedicated support structure, making it prone to deformation and displacement under injection pressure, resulting in uneven pipe wall thickness and affecting product molding accuracy. The separation of the winding and injection molding processes prevents the bonding resin from fully impregnating and bonding with the steel wire and polyethylene matrix, resulting in weak interlayer bonding and easy delamination and debonding of the pipe, significantly reducing mechanical properties and service life. Existing equipment has a complex structure, is difficult to debug, and has a long molding cycle, which cannot meet the needs of large-scale and high-efficiency production, thus restricting the industrial application of steel wire mesh reinforced pipes.

[0004] Currently, the mainstream process in the industry mostly adopts a continuous production route of "inner layer extrusion - outer layer winding - outer layer coating". The integrated structure of moldless internal support and moldless internal winding injection molding still has shortcomings in the interlayer bonding strength.

[0005] To address the aforementioned issues, a steel wire winding extrusion molding equipment and process for reinforcing the interlayer bonding of steel wire mesh reinforced tubes are proposed. Summary of the Invention

[0006] To overcome the above shortcomings, this invention provides a wire winding extrusion molding equipment and process for reinforcing the interlayer bond of steel wire mesh reinforced pipes. It aims to improve the problems of traditional steel wire mesh reinforced pipe forming equipment and processes, which use offline winding, have complicated procedures, low production efficiency, lack of precise winding guidance leading to skeleton disorder, lack of dedicated support making them prone to injection molding deformation, weak interlayer bond making them prone to delamination and debonding, and complex equipment, difficult debugging, and long cycle, which restrict the industrial application of pipe materials.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a wire winding extrusion molding device for reinforcing the interlayer bonding of steel wire mesh reinforced pipes, comprising a base, an injection molding component, a heating injector, a winding component, a stretching component, a guide cylinder, and a radially retractable support component; the support component is used to unfold and support the steel wire skeleton within the mold, the winding component drives the guide cylinder and the stretching component to move synchronously in a circular motion, and the stretching component implements constant tension control on the steel wire to keep the steel wire taut and wound in an orderly manner; the device realizes integrated in-mold winding and injection molding, effectively enhancing the interlayer bonding force of the pipe material.

[0008] The device includes a base, a machine compartment fixedly connected to the top left side of the base, an injection molding assembly disposed on the left side of the base, a heating injector fixedly connected to the top right side of the base, a hopper fixedly connected to the top inner wall of the heating injector, an injection tube fixedly connected to the left side of the heating injector, an electrical box fixedly connected to the front right side of the inner wall of the base, a mounting bracket fixedly connected to the rear top of the base, a control box fixedly connected to the front left side of the mounting bracket, a winding assembly disposed in the middle of the rear side of the base, a stretching assembly disposed on the outer wall of the winding assembly, a guide cylinder fixedly mounted on the outer wall of the stretching assembly, a steel wire attached to the outer wall of the guide cylinder, a fixing plate fixedly mounted on the top inner wall of the winding assembly, and a support assembly disposed at the bottom of the fixing plate.

[0009] As a further description of the above technical solution: The injection molding assembly includes a mounting base, which is fixedly connected to the top left side of the base. A drive motor is fixedly connected to the left inner wall of the mounting base. A connecting rod 1 is fixedly connected to the output end of the drive motor. Limiting posts 1 are slidably connected to both the front and rear sides of the inner wall of the connecting rod 1. Two connecting rods 2 are rotatably connected to the inner wall of the connecting rod 1. Connecting rods 3 are rotatably connected to the inner walls of the two connecting rods 2. Connecting seat 1 is rotatably connected to the inner walls of the two connecting rods 3. A transmission seat is fixedly connected to the right side of the connecting seat 1. Limiting posts 2 are slidably connected to the four corners of the inner wall of the transmission seat. A moving module is fixedly connected to the right side of the transmission seat. Fixed seats are fixedly connected to the right sides of the multiple limiting posts 2. Fixed modules are fixedly connected to the left side of the fixed seats. A winding cylinder is wound around the outer wall of the steel wire.

[0010] As a further description of the above technical solution: The winding assembly includes a second mounting plate, which is fixedly connected to the middle of the rear side of the base. A first fixing block is fixedly connected to the middle of the top front side of the second mounting plate. A second motor is fixedly connected to the inner wall of the first fixing block. A second drive wheel is fixedly connected to the output end of the second motor. A second belt is fitted on the outer wall of the second drive wheel. A second driven wheel is fitted on the left side of the inner wall of the second belt. A double-threaded rod is fixedly connected to the inner wall of the second driven wheel. The top of the outer wall of the double-threaded rod is penetrated by the second fixing block. A third fixing block is rotatably connected to the bottom of the outer wall of the double-threaded rod. A guide wheel slides on the outer wall of the double-threaded rod. A third driven wheel is fitted on the right side of the inner wall of the second belt. A second connecting rod is fixedly connected to the inner wall of the third driven wheel. A first mounting rod is penetrated through the top of the outer wall of the second connecting rod. A second mounting rod is rotatably connected to the bottom of the second connecting rod. A positioning pin is engaged with the inner wall of the second mounting rod. A rotating seat is rotatably connected to the bottom of the inner wall of the second mounting rod.

[0011] As a further description of the above technical solution: The support assembly includes a drive mechanism and multiple support plates. The drive mechanism drives the support plates to expand radially to support the mold cavity and contract radially to achieve demolding. Specifically, it includes a mounting plate 1. The mounting plate 1 is fixedly connected to the bottom front side of two fixed plates. A drive wheel 1 is rotatably connected to the left side of the inner wall of the mounting plate 1. A motor 1 is fixedly connected to the inner wall of the drive wheel 1. A belt 1 is sleeved on the inner wall of the drive wheel 1. A driven wheel 1 is sleeved on the inner wall of the belt 1. A drive rod is fixedly connected to the inner wall of the driven wheel 1. A screw is fixedly connected to the bottom of the drive rod. A sleeve rod is threadedly connected to the outer wall of the screw. Multiple connecting rods 6 are rotatably connected to the top of the outer wall of the sleeve rod. Multiple connecting rods 5 are rotatably connected to the inner walls of the multiple connecting rods 5. A support plate is rotatably connected to the inner wall of the screw. A connecting seat 2 is rotatably connected to the bottom of the connecting seat 2. A connecting rod 1 is fixedly connected to the bottom of the connecting seat 2. Multiple connecting rods 4 are rotatably connected to the outer wall of the connecting seat 2.

[0012] As a further description of the above technical solution: The tensioning assembly is a constant tension compensation mechanism, comprising two fixed rods. The two fixed rods are disposed on the inner wall of the connecting rod two. A telescopic rod is fixedly connected to the adjacent side of each of the two fixed rods. A spring is sleeved on the outer wall of the telescopic rod. A connecting frame is fixedly connected to the outer wall of each of the two fixed rods. A connecting rod three is fixedly connected to the inner wall of the connecting frame.

[0013] As a further description of the above technical solution: The fixed base is fixedly connected to the top center of the base, and the multiple limiting posts are fixedly connected to the four corners of the inner wall of the mounting base. The two connecting rods are rotatably connected to the right side of the mounting base.

[0014] As a further description of the above technical solution: The second fixing block is fixedly connected to the top left end of the front side of the second mounting plate, and the third fixing block is fixedly connected to the bottom left end of the front side of the second mounting plate.

[0015] As a further description of the above technical solution: The mounting rod is fixedly connected to the top right end of the front side of the mounting plate, the positioning pin is engaged with the inner wall of the connecting rod, and the rotating seat is fixedly connected to the bottom right end of the front side of the mounting plate.

[0016] As a further description of the above technical solution: The drive rod passes through the right side of the inner wall of the mounting plate one, the connecting rod one is fixedly connected to the top center of the base, and the multiple connecting rods four are rotatably connected to the inner walls of multiple support plates on the same side.

[0017] As a further description of the above technical solution: S1. Drive the support component to move, so that the support plate of the support component expands radially and forms in-mold support for the molding station; S2. Drive the winding assembly to operate. The winding assembly drives the guide cylinder and the tensioning assembly to move synchronously. The guide cylinder outside the tensioning assembly keeps the steel wire taut. The steel wire is wound in an orderly manner around the outside of the support plate through the guide cylinder to form a steel wire skeleton. There is no need for offline winding and skeleton transfer. S3. Start the drive motor of the injection molding component. The drive motor drives the linkage mechanism to move the moving module towards the stationary module and complete the mold closing. S4. The raw material enters the heating syringe through the hopper to melt, and the molten raw material is injected into the mold cavity through the injection tube and covers the steel wire skeleton. S5. After the raw material in the mold cavity has solidified and formed, the injection molding component drives the moving module to separate from the stationary module and removes the formed wire mesh skeleton tube.

[0018] The present invention has the following beneficial effects: In this invention, the steel wire is wound precisely and orderly, resulting in a higher quality skeleton. Through the coordinated guidance of the guide cylinder and the winding component, the steel wire is wound in an orderly spiral, with uniform and consistent arrangement, avoiding problems such as misalignment, looseness, and crossing of the steel wire. Combined with the constant tension control of the tensioning component, the steel wire is prevented from becoming loose or breaking, ensuring that the steel wire skeleton structure is regular and the reinforcement effect is stable.

[0019] In this invention, the skeleton support is reliable and the molding accuracy is higher. The support component can provide multi-point adaptive support for the wound steel wire skeleton, effectively resisting the pressure impact during the injection molding process, avoiding skeleton deformation and displacement, ensuring uniform pipe wall thickness and accurate dimensions, and improving product qualification rate.

[0020] In this invention, the molding equipment is easy to operate and maintain. Injection molding, winding, stretching, and support are modularly integrated, resulting in a simple structure, reasonable layout, and low difficulty in debugging and maintenance. The electrical box and control box achieve full-process automated control, ensuring stable and reliable operation, reducing manual operation costs, significantly enhancing interlayer bonding strength, upgrading product performance, and seamlessly connecting the winding and injection molding processes. The high-performance bonding resin can fully impregnate the steel wire skeleton, forming a seamless fusion structure with the inner and outer polyethylene matrix, fundamentally solving the problems of interlayer delamination and debonding, and greatly improving the interlayer bonding strength of the pipe, making its impact resistance, creep resistance, and pressure resistance far exceed those of ordinary composite pipes.

[0021] This invention differs from the industry's mainstream "extrusion-winding-coating" process by employing in-mold integrated molding, significantly improving production efficiency. The entire process—including wire mesh reinforcement winding, support and shaping, and injection molding—is completed within the mold, eliminating intermediate steps such as offline winding and reinforcement transfer. This simplifies the production process, significantly shortens the pipe forming cycle, and simultaneously improves both wire winding and injection molding efficiency, making it suitable for large-scale industrial production. It has a wide range of applications and strong product adaptability, suitable for producing wire mesh reinforced pipes of different diameters and wall thicknesses. The formed pipes exhibit stable mechanical properties, meeting the high-pressure and demanding requirements of municipal, chemical, and gas applications, thus broadening the product's application scenarios. Attached Figure Description

[0022] Figure 1 This is a perspective view of the base of the steel wire winding extrusion molding equipment for interlayer bonding reinforcement of steel wire mesh skeleton tubes proposed in this invention. Figure 2 This is a flowchart of the steel wire winding extrusion molding process for interlayer bonding reinforcement of steel wire mesh skeleton tube proposed in this invention. Figure 3 This is a schematic diagram of the fixed plate structure of the steel wire mesh skeleton tube interlayer bonding reinforcement steel wire winding extrusion molding equipment proposed in this invention; Figure 4 This is a schematic diagram of the hopper structure of the steel wire mesh reinforced tube interlayer bonding steel wire winding extrusion molding equipment proposed in this invention. Figure 5 This is a schematic diagram of the mounting plate structure of the steel wire mesh skeleton tube interlayer bonding reinforcement steel wire winding extrusion molding equipment proposed in this invention; Figure 6 This is a schematic diagram of the driven wheel structure of the steel wire winding extrusion molding equipment for steel wire mesh reinforced interlayer bonding of steel wire mesh tubes proposed in this invention. Figure 7 This is a schematic diagram of the winding cylinder structure of the steel wire mesh skeleton tube interlayer bonding reinforcement steel wire winding extrusion molding equipment proposed in this invention; Figure 8 This is a schematic diagram of the support plate structure of the steel wire mesh skeleton tube interlayer bonding reinforcement steel wire winding extrusion molding equipment proposed in this invention; Figure 9 This is a schematic diagram of the fixed base structure of the steel wire mesh skeleton tube interlayer bonding reinforcement steel wire winding extrusion molding equipment proposed in this invention; Figure 10 This is a schematic diagram of the bidirectional threaded rod structure of the steel wire mesh skeleton tube interlayer bonding reinforcement steel wire winding extrusion molding equipment proposed in this invention; Figure 11 This is a schematic diagram of the guide wheel structure of the steel wire mesh reinforced tube interlayer bonding steel wire winding extrusion molding equipment proposed in this invention; Figure 12 This is a schematic diagram of the spring structure of the steel wire mesh skeleton tube interlayer bonding reinforcement steel wire winding extrusion molding equipment proposed in this invention.

[0023] Legend: 1. Base; 2. Cabin; 3. Injection molding components; 301. Mounting base; 302. Drive motor; 303. Limiting post one; 304. Connecting rod one; 305. Limiting post two; 306. Connecting rod two; 307. Connecting rod three; 308. Connecting seat one; 309. Transmission seat; 310. Moving module; 311. Fixed seat; 312. Fixed module; 313. Winding cylinder; 4. Support components; 401. Mounting plate one; 402. Motor one; 403. Drive wheel one; 404. Belt one; 405. Driven wheel one; 406. Drive rod; 407. Connecting rod one; 408. Screw; 409. Connecting seat two; 410. Connecting rod four; 411. Connecting rod five; 412. Sleeve rod; 413. Connecting rod six; 414. Support plate; 5. Fixing plate; 6. Winding assembly; 601. Mounting plate two; 602. Fixing block one; 603. Motor two; 604. Drive wheel two; 605. Belt two; 606. Driven wheel two; 607. Fixing block two; 608. Fixing block three; 609. Bidirectional threaded rod; 610. Guide wheel; 611. Connecting rod two; 612. Driven wheel three; 613. Mounting rod one; 614. Mounting rod two; 615. Rotating seat; 616. Positioning pin; 7. Tension assembly; 701. Fixed rod; 702. Telescopic rod; 703. Spring; 704. Connecting frame; 705. Connecting rod three; 8. Guide cylinder; 9. Steel wire; 10. Electrical box; 11. Mounting bracket; 12. Heating injector; 13. Injection tube; 14. Hopper; 15. Control box. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Reference Figure 1-12 An embodiment of the present invention provides a wire mesh reinforced interlayer steel wire winding extrusion molding device, comprising a base 1, a machine chamber 2 fixedly connected to the top left side of the base 1, an injection molding assembly 3 disposed on the left side of the base 1, a heating injector 12 fixedly connected to the top right side of the base 1, a hopper 14 fixedly connected to the top inner wall of the heating injector 12, an injection tube 13 fixedly connected to the left side of the heating injector 12, an electrical box 10 fixedly connected to the front right side of the inner wall of the base 1, a mounting frame 11 fixedly connected to the rear top of the base 1, a control box 15 fixedly connected to the front left side of the mounting frame 11, a winding assembly 6 disposed in the middle of the rear side of the base 1, a stretching assembly 7 disposed on the outer wall of the winding assembly 6, and a guide cylinder 8 fixedly mounted on the outer wall of the stretching assembly 7. The outer wall is fitted with steel wire 9, and a fixing plate 5 is fixedly installed on the top of the inner wall of the winding component 6. A support component 4 is set at the bottom of the fixing plate 5. This design is for the base 1 to support the molding equipment. The machine compartment 2 and injection component 3 are set on the left side, and the heating injector 12, hopper 14 and injection tube 13 are installed on the right side. The winding component 6, stretching component 7 and support component 4 are arranged on the rear side. With the help of the electrical box 10 and control box 15, automatic control is realized. The support component 4 provides stable support for the molding station. The winding component 6 drives the guide cylinder 8 and stretching component 7 to work together to keep the steel wire 9 taut and winding in an orderly manner. The injection component 3 and the heating injector 12 work together to complete the in-mold coating, which solves the problems of offline winding and easy deformation of the skeleton in traditional equipment, realizes integrated molding, and improves production efficiency and interlayer bonding of the pipe.

[0026] Injection molding component 3 includes a mounting base 301, which is fixedly connected to the top left side of the base 1. A drive motor 302 is fixedly connected to the left side of the inner wall of the mounting base 301. A connecting rod 304 is fixedly connected to the output end of the drive motor 302. Limiting posts 303 are slidably connected to both the front and rear sides of the inner wall of the connecting rod 304. Two connecting rods 306 are rotatably connected to the inner wall of the connecting rod 304. Connecting rods 307 are rotatably connected to the inner walls of the two connecting rods 306. Connecting seats 308 are rotatably connected to the inner walls of the two connecting rods 307. A transmission seat 309 is fixedly connected to the right side of the connecting seat 308. Limiting posts 305 are slidably connected to the four corners of the inner wall of the transmission seat 309. A moving module 310 is fixedly connected to the right side of the transmission seat 309. The multiple limiting posts 305... A fixed base 311 is fixedly connected to the right side of each component, and a fixed module 312 is fixedly connected to the left side of the fixed base 311. A winding cylinder 313 is wound around the outer wall of the steel wire 9. This design is for the mounting base 301 to have a built-in drive motor 302. Through the linkage mechanism composed of connecting rod 1 304, connecting rod 2 306, and connecting rod 307, the drive base 309 and the moving module 310 are driven to move smoothly along the limiting post 2 305. This, together with the fixed module 312 on the fixed base 311, completes high-precision mold closing and opening. The limiting post 1 303 and the limiting post 2 305 ensure the accuracy of the movement and avoid mold closing deviation. The winding cylinder 313 provides an initial storage carrier for the steel wire 9, making the injection molding action stable and reliable, the mold cavity sealing effect good, and the molten material fully covers the steel wire 9 skeleton, enhancing the interlayer bonding and eliminating delamination defects.

[0027] The winding assembly 6 includes a second mounting plate 601, which is fixedly connected to the middle of the rear side of the base 1. A first fixing block 602 is fixedly connected to the middle of the top front side of the second mounting plate 601. A second motor 603 is fixedly connected to the inner wall of the first fixing block 602. A second drive wheel 604 is fixedly connected to the output end of the second motor 603. A second belt 605 is sleeved on the outer wall of the second drive wheel 604. A second driven wheel 606 is sleeved on the left side of the inner wall of the second belt 605. A double-threaded rod 609 is fixedly connected to the inner wall of the second driven wheel 606. A second fixing block 607 passes through the top of the outer wall of the double-threaded rod 609. A third fixing block 608 is rotatably connected to the bottom of the outer wall of the double-threaded rod 609. A guide wheel 610 slides on the outer wall of the double-threaded rod 609. A third driven wheel 612 is sleeved on the right side of the inner wall of the second belt 605. A second connecting rod 611 is fixedly connected to the inner wall of the third driven wheel 612. The top of the outer wall of the connecting rod 611 is penetrated by the mounting rod 613. The bottom of the connecting rod 611 is rotatably connected to the mounting rod 614. The inner wall of the mounting rod 614 is fitted with a positioning pin 616. The bottom of the inner wall of the mounting rod 614 is rotatably connected to a rotating seat 615. This design is for the motor 603 to drive the drive wheel 604, which in turn drives the bidirectional threaded rod 609 and the connecting rod 611 to rotate via the belt 605. The bidirectional threaded rod 609 adjusts the position of the guide wheel 610 to adapt to different pipe diameters. The connecting rod 611 drives the tensioning assembly 7 and the guide cylinder 8 to rotate in a circular motion, realizing the spiral winding of the steel wire 9. The fixing block 607, the fixing block 608, and the rotating seat 615 ensure the stable winding operation of the winding assembly 6. The positioning pin 616 enables quick disassembly and adjustment. Precise guidance ensures that the steel wire 9 is evenly and consistently distributed, forming a regular and reinforced skeleton, improving the mechanical properties and forming accuracy of the pipe.

[0028] Support assembly 4 includes mounting plate 401, which is fixedly connected to the front bottom of two fixed plates 5. A drive wheel 403 is rotatably connected to the left inner wall of mounting plate 401. A motor 402 is fixedly connected to the inner wall of drive wheel 403. A belt 404 is sleeved on the inner wall of drive wheel 403. A driven wheel 405 is sleeved on the inner wall of belt 404. A drive rod 406 is fixedly connected to the inner wall of driven wheel 405. A screw 408 is fixedly connected to the bottom of drive rod 406. A sleeve rod 412 is threaded onto the outer wall of screw rod 408. Multiple connecting rods 413 are rotatably connected to the top of the outer wall of sleeve rod 412. Multiple connecting rods 411 are rotatably connected to the bottom of the outer wall of sleeve rod 412. Supports are rotatably connected to the inner walls of each of the multiple connecting rods 411. The bottom of the outer wall of plate 414 and screw 408 is rotatably connected to connecting seat 2 409. The bottom of connecting seat 2 409 is fixedly connected to connecting rod 1 407. Multiple connecting rods 410 are rotatably connected to the outer wall of connecting seat 2 409. This design is for motor 1 402 to drive drive rod 406 and screw 408 to rotate via belt 1 404, causing sleeve rod 412 to move up and down. Through connecting rods 410, 511, and 613, the support plate 414 is driven to expand and contract. The multi-point support plate 414 adaptively fits the inner wall of the steel wire 9 skeleton, effectively resisting deformation and displacement under injection pressure, making the pipe wall thickness uniform and the dimensions accurate. This solves the problem of skeleton misalignment caused by the lack of dedicated support in traditional methods, improves the product qualification rate, and provides a stable structural foundation for interlayer bonding reinforcement.

[0029] The tensioning assembly 7 includes two fixed rods 701, which are set on the inner wall of the connecting rod 611. A telescopic rod 702 is fixedly connected to the adjacent side of each of the two fixed rods 701. A spring 703 is sleeved on the outer wall of the telescopic rod 702. A connecting frame 704 is fixedly connected to the outer wall of each of the two fixed rods 701. A connecting rod 705 is fixedly connected to the inner wall of the connecting frame 704. This design allows the tensioning assembly 7, fixed rods 701, telescopic rods 702, and springs 703 to form a constant tension mechanism. The connecting frame 704 and connecting rod 705 fix the guide cylinder 8. The spring 703 automatically compensates for tension fluctuations during the winding process of the steel wire 9, preventing the steel wire 9 from loosening or breaking. The tensioning assembly 7 moves synchronously with the winding assembly 6, ensuring that the steel wire 9 remains in a stable tension state, making the winding process continuous and smooth. The steel wire 9 has a regular skeleton structure, providing stable reinforcement and improving the reliability of interlayer bonding and product quality from the source.

[0030] The fixed base 311 is fixedly connected to the top center of the base 1. Multiple limiting posts 305 are fixedly connected to the four corners of the inner wall of the mounting base 301. Two connecting rods 306 are rotatably connected to the right side of the mounting base 301. This design is to ensure that the fixed base 311 is stably connected to the middle of the base 1. The limiting posts 305 are distributed at the four corners of the mounting base 301 to ensure that the transmission base 309 and the moving module 310 operate without shaking. The connecting rods 306 are hinged to the right side of the mounting base 301 to form a stable transmission fulcrum. The force is evenly distributed, and the mold closing and opening actions are precise and synchronized. This design is suitable for high-speed continuous production scenarios, reduces the difficulty of debugging molding equipment, improves operational stability, and provides structural support for large-scale production.

[0031] Fixed block 2 607 is fixedly connected to the top left end of the front side of mounting plate 2 601, and fixed block 3 608 is fixedly connected to the bottom left end of the front side of mounting plate 2 601. This design is to fix the installation position of the winding assembly 6. Fixed blocks 2 607 and 3 608 are respectively installed at the top and bottom ends of the front side of mounting plate 2 601 to provide stable support and rotation guidance for the bidirectional threaded rod 609, avoid shaking and deviation during operation, make the bidirectional threaded rod 609 transmission precise, and make the guide wheel 610 adjust smoothly and adapt to the production of pipes of different specifications, so that the winding trajectory of the steel wire 9 is accurate, improves the quality of skeleton forming, and enhances the versatility of equipment and product adaptability.

[0032] Mounting rod 1 613 is fixedly connected to the top right end of the front side of mounting plate 2 601. Positioning pin 616 is engaged with the inner wall of connecting rod 2 611. Rotating seat 615 is fixedly connected to the bottom right end of the front side of mounting plate 2 601. This design is to form a stable support system with mounting rod 1 613, mounting rod 2 614 and rotating seat 615. Positioning pin 616 enables quick positioning and locking, and facilitates disassembly and maintenance. It allows connecting rod 2 611 to drive the stretching component 7 to move smoothly in a circular motion without jamming or deviation. The winding trajectory of steel wire 9 is precise and controllable, improving the operation and maintenance efficiency of molding equipment, reducing labor costs, and meeting the needs of continuous industrial production.

[0033] The drive rod 406 passes through the right side of the inner wall of the mounting plate 401, and the connecting rod 407 is fixedly connected to the top center of the base 1. Multiple connecting rods 410 are rotatably connected to the inner walls of multiple support plates 414 on the same side. This design is to enable the drive rod 406 to pass through the mounting plate 401 to achieve power transmission. The connecting rod 407 is fixed to the connecting seat 409 to ensure bottom stability. The connecting rod 410 is hinged to the support plate 414 to achieve synchronous extension and retraction. The transmission structure is simple and efficient, and the power transmission is lossless. The support plate 414 expands and contracts quickly, and the support force is evenly distributed, effectively resisting the impact of injection molding pressure, preventing the steel wire 9 skeleton from deforming, and improving the pipe forming accuracy and interlayer bonding strength.

[0034] The drive support assembly 4 is activated, causing the support plate 414 of the support assembly 4 to unfold and provide support for the molding station; the drive winding assembly 6 is activated, and the winding assembly 6 drives the guide cylinder 8 and the tensioning assembly 7 to move synchronously. The guide cylinder 8 outside the tensioning assembly 7 keeps the steel wire 9 taut, and the steel wire 9 is wound in an orderly manner around the outside of the support plate 414 through the guide cylinder 8 to form the steel wire 9 skeleton; the drive motor 302 of the injection molding assembly 3 is started, and the drive motor 302 drives the linkage mechanism to move the moving module 310 to the stationary module 312 and complete the mold closing; the raw material enters the heating injector 12 through the hopper 14 to melt, and the molten raw material is injected into the mold cavity through the injection tube 13 and covers the steel wire 9 skeleton. After the raw material in the mold cavity solidifies and forms, the injection molding component 3 drives the driving module 310 to separate from the stationary module 312, and takes out the formed steel wire 9 mesh skeleton tube. This design is to first start the support component 4 to unfold the support plate 414 to support the station, and then start the winding component 6 to drive the steel wire 9 to be tensioned and wound in an orderly manner to form a skeleton. Then the injection molding component 3 closes the mold, and the heated injector 12 injects the molten raw material into the mold cavity to cover the skeleton. After the raw material solidifies, the mold is opened and the tube is taken out. The whole process is completed in-mold integration, eliminating the offline winding and skeleton transfer links. The bonding resin fully impregnates the steel wire 9 and the matrix, significantly improving the interlayer bonding force, shortening the molding cycle, and making it suitable for the production of pipes under high pressure and harsh working conditions.

[0035] Working principle: After the equipment is started, the support assembly 4 enters the working state first. The motor 402 operates as the power source, driving the drive wheel 403 to rotate. The power is transmitted to the driven wheel 405 through the belt 404, which drives the drive rod 406 and the coaxial screw 408 to rotate synchronously. The sleeve 412 on the outer wall of the screw 408 moves up and down along the axis under the action of thread transmission. The upper and lower ends of the sleeve 412 are respectively hinged to the connecting rod 413 and the connecting rod 411. The connecting rod 410, the connecting rod 411, and the connecting rod 413 form a linkage mechanism, which pushes multiple support plates 414 to unfold outward synchronously until they fit against the inner wall of the molding station, forming a multi-point adaptive support structure. After the support plate 414 is unfolded, the force is uniform and can withstand the high pressure impact of the subsequent injection molding process, avoiding deformation, displacement, and collapse of the steel wire 9 skeleton. This fundamentally makes the pipe wall thickness uniform and the dimensions accurate, providing a stable foundation for the winding and injection molding of the steel wire 9, and solving the problem of poor molding accuracy caused by the lack of dedicated support in the past.

[0036] Once the support is in place, the winding assembly 6 and the tensioning assembly 7 start working together. The motor 603 outputs power to drive the drive wheel 604 to rotate, achieving dual-path synchronous transmission through the belt 605. The left driven wheel 606 drives the bidirectional threaded rod 609 to rotate, adjusting the up and down position of the guide wheel 610 to adapt to the winding requirements of different pipe diameters, ensuring precise winding trajectory of the steel wire 9. The right driven wheel 612 drives the connecting rod 611 to perform uniform circular motion, thereby driving the tensioning assembly 7 and the guide cylinder 8 to rotate synchronously. The tensioning assembly 7 has a built-in telescopic rod 702 and a spring 703, forming constant tension compensation. In the winding process of steel wire 9, spring 703 automatically buffers tension fluctuations. When the tension of steel wire 9 is too high, spring 703 contracts to buffer; when the tension is too low, spring 703 extends to compensate, ensuring that steel wire 9 is always in a stable tension state, avoiding problems such as loosening, crossing, and breakage. Steel wire 9 is precisely guided by guide cylinder 8 and wound in an orderly spiral along the outer wall of support plate 414, quickly forming a uniform and well-structured steel wire 9 mesh skeleton. There is no misalignment or loosening throughout the process, ensuring the stable quality of the reinforcing skeleton. This corresponds to the beneficial effects of winding and stretching components 7, achieving precise and standardized winding of steel wire 9.

[0037] After the steel wire 9 skeleton is wound, the injection molding component 3 starts the mold closing program. The drive motor 302 serves as the mold closing power source, driving the connecting rod 1 304 to rotate. The connecting rod 1 304 is limited and guided by the limiting post 1 303, which pushes the linkage mechanism composed of the two sets of connecting rods 2 306 and connecting rod 307 to work together, converting the rotational power into horizontal linear power, which drives the transmission seat 309 and the moving module 310 to move horizontally and smoothly towards the fixed module 312 along the limiting post 2 305. The limiting post 2 305 is distributed at the four corners of the mounting seat 301, ensuring that the moving module 310 runs without shaking or deviation, with high mold closing accuracy and tight mold cavity sealing, avoiding material leakage during injection molding. After the mold is closed, the heating injector 12 enters the working state. The polyethylene raw material and the adhesive resin are added from the hopper 14 and melted into a fluid state at high temperature inside the heating injector 12. Under pressure, the molten raw material is precisely injected into the closed mold cavity through the injection tube 13, quickly covering the steel wire 9 skeleton. Since the winding and injection are seamlessly connected in the mold, the high-performance adhesive resin can fully wet the surface of the steel wire and the inner and outer polyethylene matrix, forming a seamless interface structure. This fundamentally solves the problems of interlayer delamination and debonding, greatly improves the interlayer bonding strength of the pipe, and makes the impact resistance, creep resistance and pressure resistance far exceed those of ordinary composite pipes.

[0038] The molten material in the mold cavity is rapidly solidified and formed under constant temperature. After the overall structure of the pipe is stable, the injection component 3 rotates in reverse, the drive motor 302 drives the linkage mechanism to reset, the moving module 310 and the fixed module 312 separate smoothly, and the mold opening action is completed. Then the support component 4 rotates in reverse, the motor 402 drives the screw 408 to reverse, the sleeve rod 412 moves down, the linkage mechanism retracts, and the support plate 414 retracts inward at the same time, releasing the support on the formed pipe. The operator can easily take out the complete steel wire 9 mesh skeleton pipe, and the single pipe forming process is completed.

[0039] The molding equipment's injection, winding, stretching, and support processes operate independently yet collaboratively. The electrical box 10 and control box 15 achieve fully automated control of the entire process, allowing for precise adjustment of parameters such as winding speed, tension, mold closing pressure, injection temperature, and curing time. The equipment has a simple structure, reasonable layout, low debugging and maintenance difficulty, and stable and reliable operation. Compared to traditional offline winding processes, this invention eliminates intermediate steps such as skeleton winding, transfer, and positioning, significantly shortening the molding cycle and greatly improving production efficiency. It can adapt to the production of pipes with different diameters and wall thicknesses, and the molded pipes have stable mechanical properties, meeting the high-pressure and harsh working conditions required for municipal, chemical, and gas applications. It truly realizes high-quality, high-efficiency, and large-scale industrial production of 9-wire reinforced steel wire pipes.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 wire winding extrusion molding equipment for interlayer reinforcement of steel wire mesh reinforced tubes, comprising a base (1), characterized in that: The base (1) is fixedly connected to the top left side of the machine compartment (2), the base (1) is provided with an injection molding assembly (3) on the left side, the base (1) is fixedly connected to the top right side of the base (1), the heating injector (12) is fixedly connected to the top inner wall of the heating injector (12), the heating injector (12) is fixedly connected to the top, the heating injector (12) is fixedly connected to the left side of the injection tube (13), the base (1) is fixedly connected to the front right side of the inner wall of the base (1), the base (1) is fixedly connected to the rear top of the base (1), the base (1) is fixedly connected to the front left side of the mounting frame (11), the base (11) is fixedly connected to the front left side of the mounting frame (11), the base (1) is provided with a winding assembly (6) in the middle of the rear side, the base (1) is provided with a stretching assembly (7) on the outer wall of the winding assembly (6), the stretching assembly (7) is fixedly installed with a guide cylinder (8) on the outer wall of the stretching assembly (7), the guide cylinder (8) is attached with a steel wire (9) on the outer wall of the guide cylinder (8), the base (6) is fixedly installed with a fixing plate (5) on the top inner wall of the winding assembly (6), and the base (5) is provided with a support assembly (4) at the bottom.

2. The steel wire mesh reinforced tube interlayer bonding steel wire winding extrusion molding equipment according to claim 1, characterized in that: The injection molding assembly (3) includes a mounting base (301), which is fixedly connected to the top left side of the base (1). A drive motor (302) is fixedly connected to the left side of the inner wall of the mounting base (301). A connecting rod (304) is fixedly connected to the output end of the drive motor (302). Limiting posts (303) are slidably connected to both the front and rear sides of the inner wall of the connecting rod (304). Two connecting rods (306) are rotatably connected to the inner wall of the connecting rod (304). Connecting rods (307) are rotatably connected to the inner walls of the two connecting rods (306). Each of the three connecting rods (307) has a connecting seat (308) rotatably connected to its inner wall. A transmission seat (309) is fixedly connected to the right side of the connecting seat (308). Limiting posts (305) are slidably connected to the four corners of the inner wall of the transmission seat (309). A moving module (310) is fixedly connected to the right side of the transmission seat (309). A fixing seat (311) is fixedly connected to the right side of each of the multiple limiting posts (305). A fixing module (312) is fixedly connected to the left side of the fixing seat (311). A winding cylinder (313) is wound around the outer wall of the steel wire (9).

3. The steel wire mesh reinforced tube interlayer bonding and steel wire winding extrusion molding equipment according to claim 1, characterized in that: The winding assembly (6) includes a second mounting plate (601), which is fixedly connected to the middle of the rear side of the base (1). A first fixing block (602) is fixedly connected to the middle of the top front side of the second mounting plate (601). A second motor (603) is fixedly connected to the inner wall of the first fixing block (602). A second drive wheel (604) is fixedly connected to the output end of the second motor (603). A second belt (605) is sleeved on the outer wall of the second drive wheel (604). A second driven wheel (606) is sleeved on the left side of the inner wall of the second belt (605). A double-threaded rod (609) is fixedly connected to the inner wall of the second driven wheel (606). The top of the outer wall of the double-threaded rod (609) passes through the second drive wheel (606). There is a fixed block two (607), and a fixed block three (608) is rotatably connected to the bottom of the outer wall of the bidirectional threaded rod (609). A guide wheel (610) is slidably provided on the outer wall of the bidirectional threaded rod (609). A driven wheel three (612) is sleeved on the right side of the inner wall of the belt two (605). A connecting rod two (611) is fixedly connected to the inner wall of the driven wheel three (612). An installation rod one (613) passes through the top of the outer wall of the connecting rod two (611). An installation rod two (614) is rotatably connected to the bottom of the connecting rod two (611). A positioning pin (616) is snapped into the inner wall of the installation rod two (614). A rotating seat (615) is rotatably connected to the bottom of the inner wall of the installation rod two (614).

4. The steel wire mesh reinforced tube interlayer bonding and steel wire winding extrusion molding equipment according to claim 1, characterized in that: The support assembly (4) includes a mounting plate (401), which is fixedly connected to the bottom front side of two fixed plates (5). A drive wheel (403) is rotatably connected to the left side of the inner wall of the mounting plate (401). A motor (402) is fixedly connected to the inner wall of the drive wheel (403). A belt (404) is sleeved on the inner wall of the drive wheel (403). A driven wheel (405) is sleeved on the inner wall of the belt (404). A drive rod (406) is fixedly connected to the inner wall of the driven wheel (405). A screw is fixedly connected to the bottom of the drive rod (406). The screw (408) has a threaded connection to a sleeve (412) on its outer wall. Multiple connecting rods (413) are rotatably connected to the top of the outer wall of the sleeve (412). Multiple connecting rods (411) are rotatably connected to the bottom of the outer wall of the sleeve (412). Support plates (414) are rotatably connected to the inner walls of the multiple connecting rods (411). A connecting seat (409) is rotatably connected to the bottom of the outer wall of the screw (408). A connecting rod (407) is fixedly connected to the bottom of the connecting seat (409). Multiple connecting rods (410) are rotatably connected to the outer wall of the connecting seat (409).

5. The steel wire mesh reinforced tube interlayer bonding and steel wire winding extrusion molding equipment according to claim 3, characterized in that: The tensioning assembly (7) includes two fixed rods (701), which are disposed on the inner wall of the connecting rod two (611). A telescopic rod (702) is fixedly connected to the adjacent side of each of the two fixed rods (701). A spring (703) is sleeved on the outer wall of the telescopic rod (702). A connecting frame (704) is fixedly connected to the outer wall of each of the two fixed rods (701). A connecting rod three (705) is fixedly connected to the inner wall of the connecting frame (704).

6. The steel wire mesh reinforced tube interlayer bonding steel wire winding extrusion molding equipment according to claim 2, characterized in that: The fixed seat (311) is fixedly connected to the top center of the base (1), and the multiple limiting posts (305) are fixedly connected to the four corners of the inner wall of the mounting seat (301). The two connecting rods (306) are rotatably connected to the right side of the mounting seat (301).

7. The steel wire mesh reinforced tube interlayer bonding steel wire winding extrusion molding equipment according to claim 3, characterized in that: The second fixing block (607) is fixedly connected to the top left end of the front side of the second mounting plate (601), and the third fixing block (608) is fixedly connected to the bottom left end of the front side of the second mounting plate (601).

8. The steel wire mesh reinforced tube interlayer bonding steel wire winding extrusion molding equipment according to claim 3, characterized in that: The first mounting rod (613) is fixedly connected to the top right end of the front side of the second mounting plate (601), the positioning pin (616) is engaged with the inner wall of the second connecting rod (611), and the rotating seat (615) is fixedly connected to the bottom right end of the front side of the second mounting plate (601).

9. The wire winding extrusion molding equipment for interlayer bonding reinforcement of steel wire mesh reinforced tubes according to claim 4, characterized in that: The drive rod (406) passes through the right side of the inner wall of the mounting plate (401), the connecting rod (407) is fixedly connected to the top center of the base (1), and the multiple connecting rods (410) are rotatably connected to the inner wall of the multiple support plates (414) on the same side.

10. The wire winding extrusion molding process for reinforcing the interlayer bond of steel wire mesh reinforced tubes according to claim 1, applied to the wire winding extrusion molding equipment for reinforcing the interlayer bond of steel wire mesh reinforced tubes according to any one of claims 1-9, characterized in that: Includes the following steps: S1. Drive the support assembly (4) to move, so that the support plate (414) of the support assembly (4) unfolds and provides support for the molding station; S2. Drive the winding assembly (6) to operate. The winding assembly (6) drives the guide cylinder (8) and the tensioning assembly (7) to move synchronously. The guide cylinder (8) outside the tensioning assembly (7) keeps the steel wire in a taut state. The steel wire (9) is wound in an orderly manner around the outside of the support plate (414) through the guide cylinder (8) to form a steel wire skeleton. S3. Start the drive motor (302) of the injection molding assembly (3). The drive motor (302) drives the linkage mechanism to move the driving module (310) towards the stationary module (312) and complete the mold closing. S4. The raw material enters the heating injector (12) through the hopper (14) to melt. The molten raw material is injected into the mold cavity through the injection tube (13) and covers the steel wire skeleton. S5. After the raw material in the mold cavity is solidified and formed, the injection molding component (3) drives the driving module (310) to separate from the stationary module (312) and takes out the formed wire mesh skeleton tube.

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