A large-diameter steel wire mesh skeleton pipeline end face sealing device

Abstract

The utility model discloses a large -diameter steel wire mesh skeleton pipeline end face sealing device relates to pipeline processing technical field, and this utility model discloses a first support box and second support box, the upper surface fixed connection of first support box has tail top seat, the upper surface fixed mounting of second support box has heating forming module and pipeline clamping mechanism, the inside of multiple third support boxes all is equipped with liftable inlet -outlet mechanism, the outer surface of screw rod nut is connected with the middle part of support station and rotates, the upper end fixed connection of manual lifting platform has the top plate, the upper surface symmetrical rotation of top plate is equipped with first cylinder, the utility model discloses through setting up liftable inlet -outlet mechanism, pipeline clamping mechanism, heating forming module etc. the cooperation of many components links to each other to reach the effect of reducing artificial dependence, improve processing efficiency and improve the adaptability of pipeline end face processing.

Description

Technical Field

[0001] This utility model relates to the field of pipeline processing technology, specifically to a sealing device for the end face of a large-diameter steel wire mesh reinforced pipeline. Background Technology

[0002] Large-diameter steel wire mesh reinforced pipes are composite pipes made with high-strength steel wire mesh as the reinforcing skeleton and high-density polyethylene (HDPE) and other plastic materials as the outer and inner layers through an extrusion composite process. They typically refer to pipes with a nominal diameter of DN300 and above. These pipes combine the high strength of steel with the corrosion resistance of plastics and are widely used in municipal water supply and drainage, industrial fluid transportation, agricultural irrigation and other fields. They are especially suitable for scenarios that require high pressure and transportation of corrosive media. The automatic end sealing of large-diameter steel wire mesh reinforced pipes is a process and operation that uses automated equipment to seal the end faces of steel wire mesh reinforced pipes with a nominal diameter of DN300 and above.

[0003] Traditional sealing processes often involve manual positioning and pressing combined with heating equipment, requiring operators to be involved in all stages of pipe handling, alignment, and pressurization. Due to the weight and diverse dimensions of large-diameter pipes, manual operation is not only labor-intensive but also lacks precision, easily leading to uneven adhesion between the sealing material and the pipe end face, affecting the sealing effect. Furthermore, manual operation is inefficient and cannot meet the demands of mass production. Existing sealing equipment often uses fixed-size clamping mechanisms and heating / forming components, requiring the replacement of the entire mold for pipes of different diameters—a cumbersome and time-consuming process. During manual heating, temperature control precision is low, easily resulting in insufficient heating or over-melting of the sealing material, leading to poor sealing and potential leaks during use. Utility Model Content

[0004] To address the issues of low automation and poor adaptability and compatibility with pipes of different diameters, the purpose of this invention is to provide a sealing device for the end face of large-diameter steel wire mesh reinforced pipes.

[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a large-diameter steel wire mesh reinforced pipe end sealing device, including a first support box and a second support box. A tail top seat is fixedly connected to the upper surface of the first support box. A heating and forming module and a pipe clamping mechanism are fixedly installed on the upper surface of the second support box. Multiple third support boxes are provided between the first and second support boxes. Each of the multiple third support boxes has a liftable feeding and discharging mechanism inside. The liftable feeding and discharging mechanism includes a support platform, which is located within the third support box. Inside, a lead screw is rotatably connected to the middle of the lifting and discharging mechanism. A lead screw nut is threaded onto the outer side of the lead screw. The outer surface of the lead screw nut is rotatably connected to the middle of the support platform. A worm gear is rotatably connected to the upper surface of the support platform. A handwheel is fixedly sleeved at one end of the worm gear. A worm wheel is fixedly sleeved at the upper end of the lead screw nut. The outer surface of the worm gear meshes with the outer surface of the worm wheel. A manual lifting platform is fixedly connected to the top of the lead screw. A top plate is fixedly connected to the upper end of the manual lifting platform. A first roller is symmetrically rotatably mounted on the upper surface of the top plate.

[0006] Preferably, the pipe clamping mechanism includes two lower support plates, the lower surfaces of which are fixedly connected to the upper surface of the second support box, and the upper surfaces of which are symmetrically fixedly inserted with support columns. The outer surfaces of the two support columns located on the same side are slidably fitted with arc-shaped brackets, and the upper surfaces of the two arc-shaped brackets are jointly fixedly connected with a lifting plate. The top ends of the multiple support columns are jointly fixedly connected with an upper support plate, and the upper surface of the upper support plate is fixedly installed with a second cylinder. The output end of the second cylinder passes through the upper support plate and is fixedly connected to the lifting plate.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention achieves semi-automatic operation of pipelines from conveying, positioning, clamping to heating and sealing, and cooling by the coordinated linkage of multiple components such as a liftable feeding and discharging mechanism, a pipe clamping mechanism, and a heating and forming module. This reduces manual intervention. The pipe clamping mechanism is equipped with multiple arc-shaped clamps of different diameters, each marked with a diameter indicator. The appropriate clamp can be quickly replaced according to the actual pipe diameter. In addition, the height adjustment function of the liftable feeding and discharging mechanism and the position fine-tuning design of the heating and forming module further enhance the equipment's adaptability to pipes of different diameters. The heating plate in the heating and forming module can accurately heat the sealing material to a molten state. The outer and inner fixed circles cooperate to form a regular annular cavity, ensuring that the sealing material has a precise shape and consistent size after cooling and shaping. At the same time, the spring buffer structure inside the forming template and the heating plate avoids damage to the pipe or sealing material from rigid contact, ensuring the sealing and firmness of the seal. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 This is a schematic diagram of the structure of this utility model.

[0010] Figure 2 This is a schematic diagram of the lifting mechanism of this utility model.

[0011] Figure 3 This is a schematic diagram of the lifting and unloading mechanism of this utility model.

[0012] Figure 4 This is a schematic diagram of the pipe clamping mechanism of this utility model.

[0013] Figure 5 This is a schematic diagram of the heating and forming module structure of this utility model.

[0014] In the diagram: 11. First support box; 12. Second support box; 13. Third support box; 14. Tail top seat; 15. Liftable feeding / discharging mechanism; 16. Heating and forming module; 17. Pipe clamping mechanism; 18. Support platform; 19. Worm gear; 20. Lead screw nut; 21. Lead screw; 22. Worm gear; 23. Manual lifting platform; 24. First cylinder; 25. Top plate; 26. Handwheel; 28. First roller; 29. 30. Second roller; 31. Servo motor; 32. Synchronous pulley; 33. Synchronous belt; 34. Automatic lifting platform; 35. Lower support plate; 36. Arc-shaped clamping plate; 37. Support column; 38. Upper support plate; 39. Lifting plate; 40. Arc-shaped clamping seat; 41. Second cylinder; 42. Base; 43. Inner fixed circle; 44. Outer fixed circle; 45. Forming template; 46. Heating plate; 47. Third cylinder; 48. Fourth cylinder; 49. Connecting rod. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example: Figure 1-5As shown, this utility model provides a sealing device for the end face of a large-diameter steel wire mesh reinforced pipe, including a first support box 11 and a second support box 12. The first support box 11 serves as the fixed base of the equipment, providing stable support for the whole. A tail top seat 14 is fixedly connected to its upper surface. The tail top seat 14 is used for the initial positioning of the pipe tail to ensure that the pipe end face faces the processing direction. The second support box 12 serves as a movable worktable. A heating and forming module 16 and a pipe clamping mechanism 17 are fixedly installed on its upper surface. The heating and forming module 16 is responsible for heating, shaping, and cooling the sealing material at the pipe end face. The pipe clamping mechanism 17 is used to firmly fix the pipe to prevent shaking during processing. Multiple third support boxes 13 are provided between the first support box 11 and the second support box 12. The third support boxes 13 serve as connections and supports. Each of the multiple third support boxes 13 is equipped with a lifting and lowering feeding and discharging mechanism 15, which is used to realize the lifting and lowering of the pipe and the feeding and discharging of materials.

[0017] The liftable feeding and discharging mechanism 15 includes a support platform 18, which supports the pipeline. The support platform 18 is located inside the third support box 13. A lead screw 21 is rotatably connected to the middle of the liftable feeding and discharging mechanism 15. The lead screw 21 is the core transmission component. A lead screw nut 20 is inserted into the internal thread of the lead screw 21. The lead screw nut 20 cooperates with the lead screw 21 to convert the rotational motion into linear motion. The lead screw 21 passes through the support platform 18. A worm gear 19 is rotatably connected to the upper surface of the support platform 18. The worm gear 19 is used to transmit power to the handwheel 26. The handwheel 26 is fixedly sleeved at one end of the worm gear 19. The handwheel 26 is operated by the operator. The manually rotated component provides initial power to the mechanism. A worm gear 22 is fixedly sleeved on the upper end of the lead screw 21. The worm gear 22 meshes with the worm 19 to transmit power. The outer surface of the worm 19 meshes with the outer surface of the worm gear 22. A manual lifting platform 23 is fixedly connected to the top of the lead screw 21. The manual lifting platform 23 assists in fine-tuning the height. A top plate 25 is fixedly connected to the upper end of the manual lifting platform 23. The top plate 25 is used to install the first roller 28 and the first cylinder 24. The first roller 28 is symmetrically rotated on the upper surface of the top plate 25. The first roller 28 rotates with the pipeline to help support the pipeline and keep the end face flat.

[0018] The pipe clamping mechanism 17 includes two lower support plates 34. The lower surfaces of both lower support plates 34 are fixedly connected to the upper surface of the second support box 12. The lower support plates 34 provide bottom support for the clamping mechanism. Support columns 36 are symmetrically fixedly inserted into the upper surfaces of both lower support plates 34. The support columns 36 provide sliding guidance for the lifting plate 38. The outer surfaces of the two support columns 36 on the same side are slidably fitted with the lifting plate 38. The lifting plate 38 drives the arc-shaped clamping plate 35 to move up and down. The upper surfaces of the two lifting plates 38 are jointly fixedly connected to an upper support plate 37. The tops of the multiple support columns 36 are jointly fixedly connected to an arc-shaped clamping seat 39. The clamping seat 39 and the upper support plate 37 cooperate to transmit the driving force of the second cylinder 40. The second cylinder 40 is fixedly installed on the upper surface of the arc-shaped clamping seat 39. The second cylinder 40 provides power for the clamping action. The output end of the second cylinder 40 passes through the arc-shaped clamping seat 39 and is fixedly connected to the upper support plate 37. The two lower support plates 34 correspond to the two lifting plates 38. The interior of the two lower support plates 34 and the two lifting plates 38 can be detachably connected to multiple arc-shaped clamping plates 35 with different diameters. The arc-shaped clamping plates 35 are adapted to pipes of different diameters. The outer surface of the multiple arc-shaped clamping plates 35 is marked with diameter markings to facilitate quick selection of the appropriate clamping plate.

[0019] The heating and forming module 16 includes a base 41, which supports a heating plate 45 and related components. The heating plate 45 is fixedly mounted on the upper surface of the base 41. The heating plate 45 is the core component for heating the sealing material, and it contains a high-performance electric heating wire or ceramic heating element. The heating plate 45 is used to heat the sealing material to a molten state. A third cylinder 46 is fixedly mounted on one side of the upper surface of the second support box 12. The third cylinder 46 drives the heating and forming module 16 to move as a whole. The output end of the third cylinder 46 is fixedly connected to the heating plate 45. An outer fixed circle is fixedly connected to one side of the heating plate 45. 43. The outer fixed circle 43 and the inner fixed circle 42 cooperate to form a cavity. The inner fixed circle 42 is located inside the outer fixed circle 43. The inner fixed circle 42 ensures that the inner shape of the sealing material is regular. The outer fixed circle 43 is fixed to one side of the heating plate 45. Its inner diameter is compatible with the outer diameter range of common large-diameter steel wire mesh skeleton pipes and can be replaced according to different pipe diameter requirements. The inner fixed circle 42 is located inside the outer fixed circle 43. Its outer diameter corresponds to the inner diameter of the pipe, ensuring that after the sealing material is heated and melted, it can form a regular sealing structure that is compatible with the pipe under the constraint of the cavity. A forming template 4 is provided on one side of the outer fixed circle 43. 4. The outer surface of the forming template 44 has cavities of different diameters to fit multiple arc-shaped clamping plates 35. The forming template 44 is used to compact the sealing material. A fourth cylinder 47 is symmetrically fixedly connected to one side of the upper surface of the base 41. The fourth cylinder 47 finely adjusts the position of the forming template 44, which can precisely control the magnitude and stroke of the output force. By adjusting the air pressure of the fourth cylinder 47, the pressure applied to the forming template 44 can be precisely adjusted. The output ends of the two fourth cylinders 47 are fixedly connected to a connecting rod 48. The connecting rod 48 transmits the power of the fourth cylinders 47. The lower end of the connecting rod 48 is connected to the forming template. 44 Fixed connection; The upper surface of the second support box 12 is symmetrically fixedly connected with slide rails, and the outer surfaces of the two slide rails are slidably fitted with two sliders. The upper surface of the sliders is fixedly connected to the lower surface of the base 41. The slide rails and sliders ensure that the heating and forming module 16 moves smoothly; Multiple springs are fixedly connected to the inside of the forming template 44 and the inside of the heating plate 45. The springs play a buffering role to avoid rigid contact damage to the parts. The elastic coefficient of the springs is carefully designed to provide sufficient buffering force and ensure that the pressure applied by the forming template 44 to the sealing material remains stable during the compaction process.

[0020] A first cylinder 24 is fixedly installed on the upper surface of the manual lifting platform 23. The first cylinder 24 controls the lifting of the second roller 29. The output end of the first cylinder 24 passes through the top plate 25 and is fixedly connected to the automatic lifting platform 33. The automatic lifting platform 33 carries the second roller 29 and the servo motor 30. The second roller 29 is rotatably mounted on the upper surface of the automatic lifting platform 33. The second roller 29 drives the pipeline to transport or compact sealing material. The second roller 29 is located between the two first rollers 28. A servo motor 30 is fixedly installed on one side of the upper surface of the automatic lifting platform 33. The servo motor 30 provides rotational power to the second roller 29. One end of the second roller 29 and the output end of the servo motor 30 are both fixedly sleeved with a synchronous pulley 31. The synchronous pulley 31 transmits the power of the servo motor 30. The outer surfaces of the two synchronous pulleys 31 are jointly sleeved with a synchronous belt 32. The synchronous belt 32 connects the two synchronous pulleys 31 to realize power transmission.

[0021] Working Principle: The operator places the large-diameter steel wire mesh reinforced pipe to be sealed on the support platform 18. The tail end of the pipe is initially positioned by the tail top seat 14, ensuring that the end face faces the processing direction. At this time, the lifting and unloading mechanism 15 starts working: the operator manually rotates the handwheel 26, driving the worm gear 19 to rotate. The worm gear 19 meshes with the worm wheel 22, causing the worm wheel 22 to drive the lead screw 21 to rotate synchronously. Since the lead screw 21 is threadedly engaged with the lead screw nut 20, the rotational motion of the lead screw 21 is converted into the linear motion of the lead screw nut 20, thereby driving the support platform 18 and the pipe to achieve vertical lifting and lowering. By adjusting the height of the support platform 18, the pipe axis is aligned with the working axis of the subsequent clamping and sealing mechanism, laying the foundation for subsequent operations. When feeding or discharging is required, the first cylinder 24 will lift the automatic lifting platform 33, which will then drive the second roller 29 to rise and make it fit against the outer surface of the pipe. Then, the servo motor 30 will drive the second roller 29 to rotate through the transmission of the synchronous pulley 31 and the synchronous belt 32. During this process, the first roller 28 on the top plate 25 rotates with the pipe, which helps to support the pipe and keep the end face flat, and drives the pipe to carry out straight conveying. Once the pipe height is adjusted to the correct position, the pipe clamping mechanism 17 begins operation. Based on the actual pipe diameter, a matching arc-shaped clamping plate 35 is selected and installed between the lower support plate 34 and the lifting plate 38. Subsequently, the second cylinder 40 is activated, its output end pushing the lifting plate 38 downwards along the support column 36, causing the arc-shaped clamping plate 35 to move downwards synchronously until it tightly adheres to the outer surface of the pipe, firmly pressing the pipe onto the worktable of the third support box 13. At this point, the pipe is fixed both horizontally and vertically, preventing shaking or displacement during subsequent sealing processes. After the pipe is clamped, the heating and forming module 16 enters the working state. First, the heating plate 45 is powered on to preheat. After reaching the preset temperature set according to the characteristics of the sealing material, the third cylinder 46 is activated, driving the base 41 to move horizontally along the slide rail on the second support box 12, pushing the inner fixing circle 42, outer fixing circle 43, forming template 44, and heating plate 45 as a whole to a position close to the pipe end face. During this period, the fourth cylinder 47 finely adjusts the position of the forming template 44 through the connecting rod 48. With the buffering effect of its internal spring, it ensures that the heating plate 45 is parallel and aligned with the pipe end face, while avoiding rigid contact that could damage the pipe or heating plate 45. The inner fixing circle 42 and outer fixing circle 43 precisely fit the sealing material on the pipe end face, forming an annular cavity to constrain it. The pipe stays in this cavity for a set time, which can be adjusted according to the material characteristics, allowing the molten material to cool and solidify naturally. During the solidification process, the spring inside the forming template 44 maintains moderate pressure at all times, ensuring that the material is tightly fitted to the pipe end face and avoiding air bubbles or gaps. After cooling is complete, each mechanism resets in sequence: the fourth cylinder 47 drives the forming template 44 to make a slight adjustment and move backward, the third cylinder 46 drives the heating forming module 16 to move back to the initial position as a whole; the second cylinder 40 pulls the lifting plate 38 to rise, and the arc-shaped clamping plate 35 releases the pipe; the first cylinder 24 drives the second roller 29 to rise and detach from the end face of the pipe.

[0022] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A sealing device for the end face of a large-diameter steel wire mesh reinforced pipe, comprising a first support box (11) and a second support box (12), characterized in that: The upper surface of the first support box (11) is fixedly connected to the tail top seat (14), and the upper surface of the second support box (12) is fixedly installed with a heating forming module (16) and a pipe clamping mechanism (17). Multiple third support boxes (13) are provided between the first support box (11) and the second support box (12). Each of the multiple third support boxes (13) is provided with a lifting and discharging mechanism (15). The liftable feeding and discharging mechanism (15) includes a support platform (18), which is located inside the third support box (13). A lead screw (21) is rotatably connected to the middle of the liftable feeding and discharging mechanism (15). A lead screw nut (20) is threaded on the outside of the lead screw (21). The outer surface of the lead screw nut (20) is rotatably connected to the middle of the support platform (18). A worm gear (19) is rotatably connected to the upper surface of the support platform (18). A handwheel (26) is fixedly sleeved at one end of the worm gear (19). A worm wheel (22) is fixedly sleeved at the upper end of the lead screw nut (20). The outer surface of the worm gear (19) meshes with the outer surface of the worm wheel (22). A manual lifting platform (23) is fixedly connected to the top of the lead screw (21). A top plate (25) is fixedly connected to the upper end of the manual lifting platform (23). A first roller (28) is symmetrically rotatably provided on the upper surface of the top plate (25).

2. The end-face sealing device for a large-diameter steel wire mesh reinforced pipe as described in claim 1, characterized in that, The pipe clamping mechanism (17) includes two lower support plates (34). The lower surfaces of the two lower support plates (34) are fixedly connected to the upper surface of the second support box (12). The upper surfaces of the two lower support plates (34) are symmetrically fixedly inserted with support columns (36). The outer surfaces of the two support columns (36) located on the same side are slidably fitted with arc-shaped brackets (39). The upper surfaces of the two arc-shaped brackets (39) are fixedly connected with a lifting plate (38). The tops of the multiple support columns (36) are fixedly connected with an upper support plate (37). The upper surface of the upper support plate (37) is fixedly installed with a second cylinder (40). The output end of the second cylinder (40) passes through the upper support plate (37) and is fixedly connected to the lifting plate (38).

3. The end-face sealing device for a large-diameter steel wire mesh reinforced pipe as described in claim 1, characterized in that, The heating and forming module (16) includes a base (41), a heating plate (45) is fixedly installed on the upper surface of the base (41), a third cylinder (46) is fixedly installed on one side of the upper surface of the second support box (12), the output end of the third cylinder (46) is fixedly connected to the base (41), an outer fixed circle (43) is fixedly connected to one side of the heating plate (45), an inner fixed circle (42) is provided inside the outer fixed circle (43), and a forming template (44) is provided on one side of the outer fixed circle (43).

4. The end-face sealing device for a large-diameter steel wire mesh reinforced pipe as described in claim 1, characterized in that, The upper surface of the manual lifting platform (23) is fixedly equipped with a first cylinder (24). The output end of the first cylinder (24) passes through the top plate (25) and is fixedly connected to an automatic lifting platform (33). The upper surface of the automatic lifting platform (33) is rotatably equipped with a second roller (29). The second roller (29) is located between two first rollers (28). A servo motor (30) is fixedly installed on one side of the upper surface of the automatic lifting platform (33). One end of the second roller (29) and the output end of the servo motor (30) are both fixedly sleeved with a synchronous pulley (31). The outer surfaces of the two synchronous pulleys (31) are jointly sleeved with a synchronous belt (32).

5. The end-face sealing device for a large-diameter steel wire mesh reinforced pipe as described in claim 3, characterized in that, A fourth cylinder (47) is symmetrically fixedly connected to one side of the upper surface of the base (41), and the output ends of the two fourth cylinders (47) are fixedly connected to a connecting rod (48). The lower end of the connecting rod (48) is fixedly connected to the forming template (44).

6. The end-face sealing device for a large-diameter steel wire mesh reinforced pipe as described in claim 2, characterized in that, The two lower support plates (34) correspond to the two arc-shaped brackets (39), and the interior of the two lower support plates (34) and the two arc-shaped brackets (39) can be detachably connected with multiple arc-shaped brackets (35) of different diameters. The outer surface of the multiple arc-shaped brackets (35) is marked with diameter markings.

7. The end-face sealing device for a large-diameter steel wire mesh reinforced pipe as described in claim 1, characterized in that, The upper surface of the second support box (12) is symmetrically fixedly connected with slide rails, and two sliders are slidably sleeved on the outer surfaces of the two slide rails. The upper surface of the sliders is fixedly connected to the lower surface of the base (41).

8. The end-face sealing device for a large-diameter steel wire mesh reinforced pipe as described in claim 3, characterized in that, Multiple springs are fixedly connected to the inside of the forming template (44) and one side of the inside of the heating plate (45).

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