Composite plastic pipe reinforcement layer pressing device
By using a composite plastic pipe reinforcement layer compression device, the problem of loose bonding during heating and fusion after fiberglass tape winding was solved, achieving continuous compression and uniform rolling of the reinforcement layer, thus improving the pressure resistance and production quality of the pipe.
Patent Information
- Application Number
- CN202520263113.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-02-19
AI Technical Summary
In the existing manufacturing process of composite plastic pipes, when the fiberglass tape is wound and heated to fuse, the plastic core tube is prone to deformation, and the reinforcing layer is not tightly bonded and uneven, which affects the pressure resistance of the pipe.
The composite plastic pipe reinforcement layer clamping device includes a frame, slewing support bearing, outer ring mounting plate, drive motor, drive gear, inner ring fixing plate and pressure roller assembly. It achieves continuous clamping of the reinforcement layer through a four-bar linkage mechanism, combined with a protective cover to reduce noise, and uses wedge blocks to adjust the angle of the pressure roller to adapt to the pipe material.
It enables continuous production of reinforced composite plastic pipes without interrupted processing, improves the roundness of the pipe and the tightness of the bonding of the reinforcing layer, improves the production environment, and enhances the flatness and pressure resistance of the pipe.
Smart Images
Figure CN223821140U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of composite plastic pipe technology, and specifically to a composite plastic pipe reinforcing layer compression device. Background Technology
[0002] The existing manufacturing process of reinforced composite plastic pipes (taking RTP pipe with fiberglass tape as the reinforcing layer as an example) is briefly described as follows: core tube plastic extrusion → core tube blank formed by core tube mold → vacuum sizing and cooling to form plastic core tube → fiberglass tape winding and wrapping → oven heating and fusion → fiberglass tape winding and wrapping → oven heating and fusion (winding and wrapping + heating are repeated to the required number of reinforcing layers) → outer plastic coating → pipe cooling and shaping → traction → cutting → winding / or straight pipe stacking.
[0003] In the above basic processes, after the fiberglass tape is wound, it needs to be heated to melt the plastic on the fiberglass tape. This is to fuse the layers together into a unified reinforcing layer to improve the pressure resistance of the pipe. However, during the heating process, the plastic core tube is prone to becoming out of round due to heat, and the surface plastic of the fiberglass tape melts after heating, and the tightly wound fiberglass tape also softens, causing problems such as loose and uneven bonding between the reinforcing layers. Therefore, those skilled in the art have provided a composite plastic pipe reinforcing layer compression device to solve the problems mentioned in the background art. Summary of the Invention
[0004] The purpose of this invention is to provide a composite plastic pipe reinforcing layer compression device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: it includes a frame, a slewing support bearing, an outer ring mounting plate, a drive motor, a drive gear, an inner ring fixing plate, and a pressure roller assembly; an inner ring fixing plate is fixed to one side of the frame, a slewing support bearing is mounted on the inner ring fixing plate, the slewing support bearing meshes with the drive gear, the drive gear is mounted on the output shaft of the drive motor, the outer gear ring of the slewing support bearing is connected to the outer ring mounting plate, an adjusting plate is provided on the outer side of the outer ring mounting plate, a pressure plate is provided on the outer side of the adjusting plate, the pressure plate is fixed to the outer ring mounting plate, and the pressure plate and the adjusting plate are locked together by locking bolts. At least one pair of parallel pressure roller assemblies are installed on the outer side. The pressure roller assembly includes a pressure roller, a pressure roller holder, a locking bolt, a first connecting rod, a second connecting rod, a connecting rod support arm, and a third connecting rod. The pressure roller is installed at an inclination and rotatably inside the pressure roller holder. The first connecting rod and the second connecting rod are respectively connected to the two ends of the pressure roller holder. The first connecting rod and the second connecting rod in the pair of pressure roller assemblies are in opposite positions. The first connecting rod of the pressure roller assembly is hinged to the connecting rod support arm on the pressure plate. The second connecting rod is hinged to the third connecting rod. The hinge axis of the second connecting rod and the third connecting rod is fixed on the adjusting plate. The end of the third connecting rod is hinged to the connecting rod support arm on the pressure plate.
[0006] Furthermore, a protective cover is fitted onto the frame.
[0007] Furthermore, a rotating handle is installed on the adjustment disc.
[0008] Furthermore, springs are installed between the second and third links and at the end of the third link.
[0009] Furthermore, a wedge block is installed on the shaft of the pressure roller outside the pressure roller holder.
[0010] The beneficial effects of this utility model after adopting the above structure are as follows:
[0011] 1. It can be applied in the continuous production process of reinforced composite plastic pipes without the need for intermittent delivery processing or end trimming of the finished pipes. Only the reinforcing layer of the pipe needs to be compressed, resulting in a simple structure.
[0012] 2. By setting up a non-fixed connection protective cover, the noise generated during the machine production process can be reduced, the production environment can be improved, and the impact of the external environment on production can be reduced, so that the machine is in a relatively stable production environment and the production quality can be improved.
[0013] 3. The processed pipes have better roundness, and the spacing between the pressure rollers can be quickly adjusted according to the size of the processed pipes;
[0014] 4. It can roll and compact the reinforcing strips of the reinforced composite plastic pipe, and after natural cooling or air cooling, the bond is tighter; the surface of the reinforcing strips of the composite plastic pipe is smoother, so that the reinforcing layer of the composite plastic pipe is also smoother after the final plastic outer layer is wrapped. Attached Figure Description
[0015] Figure 1 This is a diagram of the internal structure of this utility model;
[0016] Figure 2 This is the main view structural diagram of this utility model;
[0017] Figure 3 yes Figure 2 A schematic diagram of section AA in the diagram;
[0018] Figure 4 This is an exploded view of this utility model.
[0019] Explanation of reference numerals in the attached figures:
[0020] 1. Protective cover; 2. Frame; 3. Rotary support bearing; 4. Outer ring mounting plate; 5. Drive motor; 6. Drive gear; 7. Inner ring fixing plate; 8. Pressure roller; 9. Adjusting plate; 10. Pressure plate; 11. Pressure roller retainer; 12. Locking bolt; 13. First connecting rod; 14. Second connecting rod; 15. Connecting rod support arm; 16. Third connecting rod; 17. Rotating handle; 18. Spring; 19. Wedge block. Detailed Implementation
[0021] 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.
[0022] See as Figure 1 —— Figure 4As shown, this specific embodiment adopts the following technical solution: it includes a frame 2, a slewing support bearing 3, an outer ring mounting plate 4, a drive motor 5, a drive gear 6, an inner ring fixing plate 7, and a pressure roller assembly; an inner ring fixing plate 7 is fixed to one side of the frame 2, and a slewing support bearing 3 is mounted on the inner ring fixing plate 7. The slewing support bearing 3 meshes with the drive gear 6, and the drive gear 6 is mounted on the output shaft of the drive motor 5. The outer gear ring of the slewing support bearing 3 is connected to the outer ring mounting plate 4, and the outer side of the outer ring mounting plate 4 is provided with... There is an adjusting disc 9, and a pressure plate 10 is provided on the outer side of the adjusting disc 9. The pressure plate 10 is fixed to the outer ring mounting disc 4. The pressure plate 10 and the adjusting disc 9 are locked together by locking bolts 12. The outer circumference of the adjusting disc 9 is provided with a step, which cooperates with the step on the inner surface of the pressure plate 10. When the locking bolts 12 are loosened, the adjusting disc 9 can rotate in the circumferential direction. When the locking bolts 12 are tightened, the outer ring mounting disc 4, the adjusting disc 9, and the pressure plate 10 rotate together with the slewing support bearing 3. At least one pair of parallel-arranged bearings are installed on the outer side of the adjusting disc 9 and the pressure plate 10. A pressure roller assembly comprises multiple pairs of pressure roller assemblies evenly distributed along the circumference. Each pressure roller assembly includes a pressure roller 8, a pressure roller retainer 11, a locking bolt 12, a first connecting rod 13, a second connecting rod 14, a connecting rod support arm 15, and a third connecting rod 16. The pressure roller 8 is inclined and rotatably mounted within the pressure roller retainer 11. The first connecting rod 13 and the second connecting rod 14 are respectively connected to both ends of the pressure roller retainer 11. In a pair of pressure roller assemblies, the positions of the first connecting rod 13 and the second connecting rod 14 are opposite. The first connecting rod 13 of the pressure roller assembly is connected to the pressure plate 1. The connecting rod support arm 15 on the pressure plate 10 is hinged, the second connecting rod 14 and the third connecting rod 16 are hinged, and the hinge axis of the second connecting rod 14 and the third connecting rod 16 is fixed on the adjusting plate 9. The end of the third connecting rod 16 is hinged to the connecting rod support arm 15 on the pressure plate 10. The two connecting rod support arms 15, the first connecting rod 13, the second connecting rod 14 and the third connecting rod 16 form a four-bar linkage mechanism. The continuous pressing of the composite plastic pipe reinforcement layer is achieved by the rotation of the outer ring mounting plate 4, the adjusting plate 9, the pressure plate 10 and the four-bar linkage mechanism and the pressure roller 8.
[0023] The frame 2 is fitted with a protective cover 1, which has an observation window for observing the internal working conditions. Alternatively, the observation window can be opened to manually rotate or fix the adjustment disc 9. The protective cover 1 protects the components on the frame 2 within the protective cover 1, which can reduce the noise generated during the machine's production process, improve the production environment, and reduce the impact of the external environment on production, so that the machine is in a relatively stable production environment and improves production quality. Holes for pipes to pass through are opened on opposite sides of the protective cover 1.
[0024] A spring 18 is installed between the second link 14 and the third link 16, and at the end of the third link 16, to provide the pipe with a certain floating pressure, but not a constant pressure, so as not to affect the forward movement of the pipe.
[0025] A wedge block 19 is installed on the shaft of the pressure roller 8 outside the pressure roller holder 11. The installation angle of the pressure roller 8 can be adjusted by replacing the wedge blocks with different inclinations. The purpose of the pressure roller 8 being installed at an inclination is to adapt to spiral rolling, increase the contact area with the pipe reinforcement layer to uniformly press the reinforcement layer, and avoid sliding friction with the pipe.
[0026] The pressure roller 8 can have a hard or soft surface depending on the material of the pipe.
[0027] The working principle of this utility model is as follows: Loosen the locking bolt 12, rotate the adjusting plate 9 to make the position of the pressure roller 8 of the pair of pressure roller assemblies adapt to the size of the pipe, the pipe passes between the two pressure rollers 8, continue to rotate the adjusting plate 9 to make the pressure roller 8 close to the outer surface of the pipe and apply a certain pressure, and then lock the adjusting plate 9 with the locking bolt 12. The drive motor 5 drives the drive gear 6, the drive gear 6 drives the slewing support bearing 3 to rotate, thereby driving the outer ring mounting plate 4, adjusting plate 9, pressure plate 10, first connecting rod 13, second connecting rod 14, third connecting rod 16 and pressure roller 8 to rotate together, completing the rolling action on the outer surface of the pipe.
[0028] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A composite plastic pipe reinforcing layer clamping device, characterized in that: It comprises a frame, a slewing support bearing, an outer ring mounting plate, a drive motor, a drive gear, an inner ring fixing plate, and a pressure roller assembly. An inner ring fixing plate is fixed to one side of the frame, and a slewing support bearing is mounted on the inner ring fixing plate. The slewing support bearing meshes with the drive gear, which is mounted on the output shaft of the drive motor. The outer gear ring of the slewing support bearing is connected to the outer ring mounting plate. An adjusting plate is located on the outer side of the outer ring mounting plate, and a pressure plate is located on the outer side of the adjusting plate. The pressure plate is fixed to the outer ring mounting plate, and the pressure plate and adjusting plate are locked together by locking bolts. At least one pair of flat... The pressure roller assembly includes a pressure roller, a pressure roller holder, a locking bolt, a first connecting rod, a second connecting rod, a connecting rod support arm, and a third connecting rod. The pressure roller is inclined and rotatably mounted inside the pressure roller holder. The first connecting rod and the second connecting rod are respectively connected to both ends of the pressure roller holder. The first connecting rod and the second connecting rod in the pair of pressure roller assemblies are in opposite positions. The first connecting rod of the pressure roller assembly is hinged to the connecting rod support arm on the pressure plate, the second connecting rod is hinged to the third connecting rod, and the hinge axis of the second connecting rod and the third connecting rod is fixed on the adjusting plate. The end of the third connecting rod is hinged to the connecting rod support arm on the pressure plate.
2. The composite plastic pipe reinforcing layer compression device according to claim 1, characterized in that: The frame is fitted with a protective cover.
3. The composite plastic pipe reinforcing layer clamping device according to claim 1, characterized in that: The adjustment disc is equipped with a rotating handle.
4. The composite plastic pipe reinforcing layer compression device according to claim 1, characterized in that: Springs are installed between the second and third links and at the end of the third link.
5. The composite plastic pipe reinforcing layer compression device according to claim 1, characterized in that: A wedge block is installed on the shaft of the pressure roller outside the pressure roller holder.