A CBFPE tube connecting forming process and device

Abstract

The application discloses a CBFPE pipe connecting forming process and device, wherein the CBFPE pipe connecting forming process comprises the following steps: firstly, cutting a plurality of reinforced fiber ropes, coaxially connecting two pipes, arranging the reinforced fiber ropes in a circumferential direction outside the connecting end of the two pipes, and spirally winding the reinforced fiber ropes on the connecting end of the two pipes. The CBFPE pipe connecting forming device comprises two supporting assemblies for supporting the two pipes, two ring assemblies respectively clamped on the connecting end of the two pipes and used for fixing the two ends of the inner layer reinforced fiber rope and the outer layer reinforced fiber rope, and two supporting structures for supporting the two ring assemblies. The application winds two layers of reinforced fiber layers at the connecting position of the two pipes, increases the axial and radial tensile and compressive strength of the connecting position of the pipes, prolongs the service life of the connected pipes, and the connecting position will not cause fluid leakage compared with the traditional mode of increasing a steel pipe in the joint.

Description

Technical Field

[0001] This invention relates to the field of pipe connection technology, and specifically discloses a CBFPE pipe connection molding process and apparatus. Background Technology

[0002] To improve the strength of polyethylene pipes, some technologies incorporate continuous reinforcing fibers to create continuous high-performance fiber-reinforced polyethylene pipes, resulting in better tensile and compressive strength. During use, multiple pipes often need to be connected to meet different operating conditions. In pipeline laying, internal or external socket joints are typically used to connect two pipes. However, since these joints are mostly injection-molded, reinforcing fibers cannot be wound around them during production, leading to reduced strength at the pipe joint and a higher risk of pipe bursts. To address this, some manufacturers add a steel pipe layer inside the internal or external socket joint to enhance its strength. However, due to the difference in thermal expansion coefficients between the steel pipe layer and the PE material of the joint, the steel pipe layer and the PE material layer can easily loosen after prolonged use, causing fluid leakage. Summary of the Invention

[0003] The purpose of this invention is to solve the above-mentioned problems and provide a CBFPE pipe connection molding process and apparatus. CBFPE (Continuous Best Fiber) pipe is a continuous high-performance fiber-reinforced polyethylene pipe with excellent tensile and compressive strength. The CBFPE pipe connection molding process and apparatus of this invention can perform connection molding treatment on the joints of CBFPE pipes to enhance the strength of the pipe joints.

[0004] The objective of this invention is achieved through the following technical solution: a CBFPE pipe connection molding process, comprising the following steps:

[0005] Step 1: Cut several reinforcing fiber ropes;

[0006] Step 2: Connect the two pipes coaxially;

[0007] Step 3: Arrange reinforcing fiber ropes circumferentially on the outside of the connection end of the two pipes, and spirally wind the reinforcing fiber ropes around the connection end of the two pipes;

[0008] Step 4: Heat the connection end of the two pipes and the reinforcing fiber rope to fuse and bond the reinforcing fiber rope to the surface of the connection end of the two pipes.

[0009] Step 5: Cool the connection ends of the two pipes and the reinforcing fiber rope to form a fiber reinforcement layer at the connection of the two pipes.

[0010] Furthermore, in step 3, inner and outer reinforcing fiber ropes are arranged circumferentially on the outer side of the connection end of the two pipes, and the winding direction of the inner reinforcing fiber rope is opposite to that of the outer reinforcing fiber rope.

[0011] The angle between the inner reinforcing fiber rope and the outer reinforcing fiber rope is 30° to 85°.

[0012] In step 4, when heating the connection end of the two pipes and the reinforcing fiber rope, tension is applied to the reinforcing fiber rope to ensure that the reinforcing fiber rope is in a taut state.

[0013] The reinforcing fiber rope is wrapped with polyethylene material on the outside.

[0014] An apparatus for implementing the above-described CBFPE pipe connection molding process includes two support components for supporting two pipes, two ring components respectively clamped at the connection ends of the two pipes and used to fix the ends of the inner and outer reinforcing fiber ropes, and two support structures for supporting the two ring components; the ring components can drive the inner and outer reinforcing fiber ropes to rotate, so that the inner and outer reinforcing fiber ropes are spirally wound around the connection ends of the two pipes; the two ring components can move along the support structures.

[0015] Furthermore, the ring assembly includes an upper ring body and a lower ring body with identical structures; both the upper and lower ring bodies include a middle layer swivel, an outer layer fixing ring connected to the outside of the middle layer swivel, and an inner layer swivel connected to the inside of the middle layer swivel; the outer layer fixing ring of the upper ring body and the outer layer fixing ring of the lower ring body are detachably connected, and the outer layer fixing ring of the lower ring body is connected to a support structure; both the middle layer swivel and the inner layer swivel are rotatable, and the two ends of the inner layer reinforcing fiber rope are respectively connected to the inner layer swivel of the two ring assemblies, and the two ends of the outer layer reinforcing fiber rope are respectively connected to the middle layer swivel of the two ring assemblies.

[0016] The intermediate layer swivel includes two semi-circular side plates arranged opposite each other, and a semi-circular middle partition plate connected to the middle of the two semi-circular side plates; a semi-circular outer sliding plate is provided on the outer side of the two semi-circular side plates, and a semi-circular inner sliding plate is provided on the inner side of the two semi-circular side plates.

[0017] The inner side of the outer fixing ring is provided with an outer sliding groove that engages with the semi-circular outer sliding plate, and the semi-circular outer sliding plate can slide within the outer sliding groove; the outer side of the inner rotating ring is provided with an inner sliding groove that engages with the semi-circular inner sliding plate, and the semi-circular inner sliding plate can slide within the inner sliding groove.

[0018] The support assembly includes a support column and an arc-shaped support plate disposed at the top of the support column; the pipe is supported on the arc-shaped support plate.

[0019] The support structure includes two support rods arranged opposite each other and a slide rod connecting the two support rods; the outer fixing rings of the two ring assemblies are mounted on the slide rod and can move along the slide rod; the slide rod is provided with a plurality of positioning holes along its length, and four positioning pins for fixing the two ring assemblies are inserted into the positioning holes.

[0020] Compared with existing technologies, this application has the following advantages: By wrapping two layers of reinforcing fiber around the connection point of two pipes, the present invention increases the axial and radial tensile and compressive strength of the pipe connection, thereby increasing the service life of the connected pipes. Compared with the traditional method of adding a steel pipe inside the joint, fluid leakage will not occur at the connection point. Furthermore, the present invention uses two ring assemblies to lay the reinforcing fiber rope, and utilizes the rotation of the ring assemblies to simultaneously wrap the inner and outer layers of reinforcing fiber rope around the connection point of the two pipes, making construction convenient and greatly improving work efficiency.

[0021] Some of the additional features of this application will be described in the following description. These additional features will become apparent to those skilled in the art upon examination of the following description and the accompanying drawings, or upon understanding the production or operation of the embodiments. The features disclosed in this application can be implemented and achieved through the practice or use of various methods, means, and combinations thereof with respect to the specific embodiments described below. Attached Figure Description

[0022] The accompanying drawings, which are provided to further illustrate this application and constitute a part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute a limitation thereof. In the drawings, the same reference numerals denote the same components.

[0023] Figure 1 This is a structural diagram showing the CBFPE pipe connection and forming device of the present invention in its usage state.

[0024] Figure 2 This is a cross-sectional view of the annular assembly of the present invention.

[0025] Figure 3 for Figure 2 Enlarged diagram of point A in the middle.

[0026] Figure 4 This is a cross-sectional view of the intermediate layer swivel of the present invention.

[0027] Figure 5 This is a structural diagram of the outer reinforcing fiber rope of the present invention.

[0028] Figure 6 This is a schematic diagram of the wiring of the two ring components of the present invention.

[0029] Figure 7 This is a schematic diagram of the two ring components of the present invention wound with reinforcing fibers.

[0030] The reference numerals in the above figures are as follows: 1—pipe, 2—arc-shaped support plate, 3—support column, 4—ring assembly, 41—outer fixing ring, 411—outer sliding groove, 42—middle layer rotating ring, 421—semi-circular middle partition plate, 422—semi-circular side plate, 423—semi-circular outer sliding plate, 424—semi-circular inner sliding plate, 43—inner rotating ring, 431—inner sliding groove, 44—fixed column, 45—locking bolt, 5—sliding rod, 6—support rod, 7—positioning hole, 8—positioning pin, 9—outer reinforcing fiber rope, 91—buckle, 10—inner reinforcing fiber rope, 11—base. Detailed Implementation

[0031] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0032] It should be noted that if the terms "first," "second," etc., are used in the specification, claims, and accompanying drawings of this application, they are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0033] In this application, when terms such as "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" are used, they indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are mainly for better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0034] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0035] Furthermore, in this application, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0036] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0037] Example

[0038] like Figure 1 As shown, this embodiment discloses a CBFPE pipe connection forming device, which includes a base 11. Two support components are disposed on the base 11, each supporting one of two connected pipes 1. Additionally, two support structures are disposed on the base 11, located on either side of the pipes 1 and between the two support components. Two ring components 4 are also disposed on the two support structures, and these ring components 4 are movable along the support structures. The two ring components 4 are separate structures, each clamping onto the connection end of the two pipes 1 to be connected.

[0039] Specifically, the support assembly includes a support column 3 and an arc-shaped support plate disposed at the top of the support column 3. During connection, the two pipes 1 are respectively supported on the arc-shaped support plates 2 of the two support assemblies.

[0040] In addition, both support structures include two opposing support rods 6 and a sliding rod 5 connecting the two support rods 6. The two ring assemblies 4 are mounted on the sliding rod 5 and can move along the sliding rod 5.

[0041] The height of the two support components matches the height of the two support structures, that is, when the two pipes 1 are supported on the two support components, the connection ends of the two pipes 1 are respectively located at the center of the two annular components 4.

[0042] The slide rod 5 has several positioning holes 7 along its length, and four positioning pins 8 are inserted into the positioning holes 7. The positioning pins 8 can be inserted into any of the positioning holes 7. When it is necessary to fix the ring assembly 4, two positioning pins 8 can be inserted into the positioning holes 7 on the front and rear sides of the ring assembly 4 respectively, and the movement of the ring assembly 4 can be restricted by the positioning pins 8.

[0043] like Figure 2 , 3 As shown, the annular assembly 4 includes an upper ring body and a lower ring body, which have the same structure. Specifically, both the upper and lower ring bodies include an intermediate layer rotating ring 42, an outer layer fixing ring 41 connected to the outside of the intermediate layer rotating ring 42, and an inner layer rotating ring 43 connected to the inside of the intermediate layer rotating ring 42. The outer layer fixing ring 41 of the upper ring body and the outer layer fixing ring 41 of the lower ring body are detachably connected by bolts, and the two ends of the outer layer fixing ring 41 of the lower ring body are respectively mounted on the slide rods 5 of the two supporting structures.

[0044] like Figure 3 As shown, the cross-sections of the outer fixing ring 41 and the inner rotating ring 43 are U-shaped, and the ends of the surrounding plates on both sides of the outer fixing ring 41 are provided with outer sliding grooves 411, while the ends of the surrounding plates on both sides of the inner rotating ring 43 are provided with inner sliding grooves 431.

[0045] like Figure 4 As shown, the intermediate layer ring 42 includes two semi-circular side plates 422 arranged opposite to each other, and a semi-circular intermediate partition 421 connected in the middle of the two semi-circular side plates 422.

[0046] Correspondingly, a semi-circular outer sliding plate 423 is provided on the outer side of the two semi-circular side plates 422, and a semi-circular inner sliding plate 424 is provided on the inner side. The semi-circular outer sliding plate 423 is engaged in the outer sliding groove 411 and can slide within the outer sliding groove 411; the semi-circular inner sliding plate 424 is engaged in the inner sliding groove 431 and can slide within the inner sliding groove 431. With the above structure, both the intermediate layer rotating ring 42 and the inner layer rotating ring 43 can rotate.

[0047] To facilitate the rotation of the intermediate layer ring 42 and the inner layer ring 43, handles can be provided on the sides of the intermediate layer ring 42 and the inner layer ring 43, allowing for easy rotation of the intermediate layer ring 42 and the inner layer ring 43 by holding the handles.

[0048] In addition, such as Figure 3As shown, both the outer slide groove 411 and the inner slide groove 431 are provided with locking bolts 45. When the locking bolts 45 are tightened, the front end of the locking bolts 45 can press against the semi-circular outer slide plate 423 and the semi-circular inner slide plate 424, thus fixing the middle layer rotating ring 42 and the inner layer rotating ring 43, so that the middle layer rotating ring 42 and the inner layer rotating ring 43 cannot rotate.

[0049] Several fixing posts 44 are circumferentially arranged on the opposite sides of the two ring assemblies 4. That is, several fixing posts 44 are circumferentially arranged on the sides of both the two intermediate layer rings 42 and the inner layer ring 43. The fixing posts 44 on the intermediate layer rings 42 of the two ring assemblies 4 are used to fix the two ends of the outer layer reinforcing fiber rope 9, while the fixing posts 44 on the inner layer rings 43 of the two ring assemblies 4 are used to fix the two ends of the inner layer reinforcing fiber rope 10. In specific configuration, such as... Figure 5 As shown, both ends of the outer reinforcing fiber rope 9 and the inner reinforcing fiber rope 10 are provided with buckles 91, which can be used to quickly connect the outer reinforcing fiber rope 9 and the inner reinforcing fiber rope 10 to the fixing post 44.

[0050] During processing, several reinforcing fiber ropes are first cut, each rope being the same length. For example, in this embodiment, the length of the reinforcing fiber rope is 1.2 meters. Then, a buckle 91 is fastened to both ends of each reinforcing fiber rope to install it onto the two ring assemblies 4.

[0051] The reinforcing fiber rope can be a bundle of multiple reinforcing fibers, wrapped with polyethylene material to facilitate better welding to the pipe. The reinforcing fibers can be glass fiber, basalt fiber, carbon fiber, or aramid fiber.

[0052] Next, the two pipes 1 are coaxially connected. In this embodiment, pipe 1 is a plastic pipe, such as a PE pipe. The connection method for the two pipes 1 can be direct end heat fusion butt welding, or it can be connected through an internal socket joint or an external socket joint.

[0053] After the two pipes 1 are connected, place the pipes 1 on the arc-shaped support plates 2 of the two support components, so that the arc-shaped support plates 2 of the two support components support the connection ends of the two pipes 1 respectively. At this time, the lower rings of the two ring components 4 are located below the pipes 1. Then, install the upper rings on the lower rings, so that the two ring components 4 clamp the connection ends of the two pipes 1 respectively, as shown. Figure 1 As shown.

[0054] The next step is wiring. The two ends of the reinforcing fiber rope are fastened to the fixing posts 44 of the middle layer swivel 42 and the inner layer swivel 43 of the two ring assemblies 4, as follows: Figure 6As shown. The reinforcing fiber rope on the outside is the outer reinforcing fiber rope 9, while the reinforcing fiber rope on the inside is the inner reinforcing fiber rope 10.

[0055] After the wiring is completed, move the two ring assemblies 4 so that the outer reinforcing fiber rope 9 and the inner reinforcing fiber rope 10 cover approximately the same length at the connection ends of the two pipes 1. Next comes the winding process, simultaneously rotating the middle layer ring 42 and the inner layer ring 43 of the two ring assemblies 4. For example, if the middle layer ring 42 of one ring assembly 4 rotates clockwise, then the inner layer ring 43 of that ring assembly 4 rotates counterclockwise; the middle layer ring 42 of the other ring assembly 4 rotates counterclockwise, and its inner layer ring 43 rotates clockwise. During rotation, the two ring assemblies 4 gradually move closer together, while ensuring that the outer reinforcing fiber rope 9 and the inner reinforcing fiber rope 10 are taut, thus allowing for more even winding. By rotating the middle layer ring 42 and the inner layer ring 43 of the two ring assemblies 4, the outer reinforcing fiber rope 9 and the inner reinforcing fiber rope 10 are spirally wound around the connection of the pipes 1, as shown below. Figure 7 As shown. After the winding is completed, the two ring assemblies 4 are fixed with positioning pins 8 and the locking bolts 45 are tightened to lock the middle layer ring 42 and the inner layer ring 43.

[0056] During the winding process, the acute angle between the inner reinforcing fiber rope 10 and the outer reinforcing fiber rope 9 is set to 30° to 85° by adjusting the position of the two ring components 4. In this embodiment, it is set to 60°.

[0057] Of course, during winding, one of the ring components 4 can be locked, and the intermediate layer ring 42 and inner layer ring 43 on it can also be locked at the same time. Only the intermediate layer ring 42 and inner layer ring 43 on the other ring component 4 can be rotated. During the rotation, the movable ring component 4 gradually moves closer to the fixed ring component 4. In this way, the outer layer reinforcing fiber rope 9 and the inner layer reinforcing fiber rope 10 can be spirally wound on the pipe 1.

[0058] After winding, a heating device is used to heat the connecting ends of the two pipes 1 and the reinforcing fiber rope wound on the connecting ends, so that the polyethylene material on the surface of the connecting ends of the two pipes 1 and the reinforcing fiber rope melts and adheres together. During the heating process, the intermediate layer ring 42 and the inner layer ring 43 on the ring assembly 4 can continue to rotate to apply tension to the outer layer reinforcing fiber rope 9 and the inner layer reinforcing fiber rope 10, so that the outer layer reinforcing fiber rope 9 and the inner layer reinforcing fiber rope 10 can be tightly adhered to the pipes 1.

[0059] Finally, the two pipes 1 and the reinforcing fiber rope are cooled, which will form two layers of fiber reinforcement at the connection of the two pipes 1. At this point, the two ring components 4 on the pipes 1 can be removed.

[0060] Since the ends of the reinforcing fiber rope are fixed to the ring assembly 4 and cannot be bonded to the pipe, the ends of the reinforcing fiber rope can be cut off after molding, or a layer of polyethylene material can be wrapped around it to make it more aesthetically pleasing.

[0061] This invention increases the axial and radial tensile and compressive strength of the connection point by wrapping two layers of reinforcing fiber around the joint of two pipes 1, thereby extending the service life of the connected pipes. Compared to the traditional method of adding a steel pipe inside the joint, this invention prevents fluid leakage at the connection point. Furthermore, this invention uses two ring assemblies 4 to lay the reinforcing fiber rope, and utilizes the rotation of the ring assemblies to simultaneously wrap the inner and outer layers of reinforcing fiber rope around the connection point of the two pipes 4, making construction convenient and greatly improving work efficiency.

[0062] It should be noted that all features disclosed in this specification, or all steps in all methods or processes disclosed, may be combined in any way, except for mutually exclusive features and / or steps.

[0063] Furthermore, the specific embodiments described above are exemplary. Those skilled in the art can devise various solutions inspired by the disclosure of this invention, and these solutions all fall within the scope of this invention and its protection. Those skilled in the art should understand that this specification and its accompanying drawings are illustrative and not intended to limit the scope of the claims. The scope of protection of this invention is defined by the claims and their equivalents.

Claims

1. A CBFPE pipe connection molding process, characterized in that, This is implemented using a CBFPE pipe connection forming device; the CBFPE pipe connection forming device includes two support components for supporting two pipes (1), two ring components (4) respectively clamped at the connection ends of the two pipes (1) and used to fix the two ends of the inner reinforcing fiber rope (10) and the outer reinforcing fiber rope (9), and two support structures for supporting the two ring components (4); the ring components (4) can drive the inner reinforcing fiber rope (10) and the outer reinforcing fiber rope (9) to rotate, so that the inner reinforcing fiber rope (10) and the outer reinforcing fiber rope (9) are spirally wound around the connection ends of the two pipes (1); the two ring components (4) can move along the support structures; The ring assembly (4) includes an upper ring body and a lower ring body with the same structure; both the upper ring body and the lower ring body include an intermediate layer swivel (42), an outer layer fixing ring (41) connected to the outside of the intermediate layer swivel (42), and an inner layer swivel (43) connected to the inside of the intermediate layer swivel (42); the outer layer fixing ring (41) of the upper ring body and the outer layer fixing ring (41) of the lower ring body are detachably connected, and the outer layer fixing ring (41) of the lower ring body is connected to the support structure; both the intermediate layer swivel (42) and the inner layer swivel (43) can rotate, and the two ends of the inner layer reinforcing fiber rope (10) are respectively connected to the inner layer swivel (43) of the two ring assemblies (4), and the two ends of the outer layer reinforcing fiber rope (9) are respectively connected to the intermediate layer swivel (42) of the two ring assemblies (4); the support assembly includes a support column (3) and an arc-shaped support plate disposed at the top of the support column (3); The support structure includes two support rods (6) arranged opposite to each other and a slide rod (5) connecting the two support rods (6); the outer fixing rings (41) of the two ring assemblies (4) are installed on the slide rod (5) and can move along the slide rod (5); a plurality of positioning holes (7) are provided on the slide rod (5) along its length direction, and four positioning pins (8) for fixing the two ring assemblies (4) are inserted into the positioning holes (7); The intermediate layer swivel (42) includes two semi-circular side plates (422) arranged opposite to each other, and a semi-circular middle partition (421) connected in the middle of the two semi-circular side plates (422); a semi-circular outer sliding plate (423) is provided on the outer side of the two semi-circular side plates (422), and a semi-circular inner sliding plate (424) is provided on the inner side of them. The outer fixing ring (41) has an outer sliding groove (411) on its inner side that engages with the semi-circular outer sliding plate (423), and the semi-circular outer sliding plate (423) can slide in the outer sliding groove (411); the inner rotating ring (43) has an inner sliding groove (431) on its outer side that engages with the semi-circular inner sliding plate (424), and the semi-circular inner sliding plate (424) can slide in the inner sliding groove (431); locking bolts (45) are provided on both the outer sliding groove (411) and the inner sliding groove (431); several fixing posts (44) are circumferentially arranged on the sides of the two intermediate rotating rings (42) and the sides of the inner rotating ring (43). The CBFPE pipe connection molding process includes the following steps: Step 1: Cut several reinforcing fiber ropes; Step 2: Connect the two pipes (1) to be connected coaxially; Step 3: Place the two connected pipes (1) on the arc-shaped support plates (2) of the two support components, so that the arc-shaped support plates (2) of the two support components support the connection ends of the two pipes (1) respectively; at this time, the lower ring of the two ring components (4) is located below the pipe (1), and then install the upper ring on the lower ring, so that the two ring components (4) are clamped on the connection ends of the two pipes (1) respectively; Step 4: Attach the two ends of the reinforcing fiber rope to the fixing post (44) of the middle layer swivel (42) and the fixing post (44) of the inner layer swivel (43) of the two ring components (4). The reinforcing fiber rope on the outside is the outer layer reinforcing fiber rope (9), and the reinforcing fiber rope on the inside is the inner layer reinforcing fiber rope (10). Step 5: Move the two ring components (4) so ​​that the outer reinforcing fiber rope (9) and the inner reinforcing fiber rope (10) cover the two pipe (1) connection ends of the same length; Step 6: Simultaneously rotate the middle layer ring (42) and inner layer ring (43) of the two ring assemblies (4); wherein, rotate the middle layer ring (42) of one ring assembly (4) clockwise, and rotate the inner layer ring (43) of the same ring assembly (4) counterclockwise; rotate the middle layer ring (42) of the other ring assembly (4) counterclockwise, and rotate the inner layer ring (43) clockwise; during the rotation, the two ring assemblies (4) gradually approach each other, but also ensure that the outer reinforcing fiber rope (9) and the inner reinforcing fiber rope (10) are in a taut state; Step 7: After the winding is completed, the two ring components (4) are fixed with positioning pins (8) and the locking bolts (45) are tightened to lock the middle layer ring (42) and the inner layer ring (43). The connecting ends of the two pipes (1) and the reinforcing fiber rope wound on the connecting ends are heated so that the polyethylene material on the connecting end surfaces of the two pipes (1) and the reinforcing fiber rope melts and adheres together. After the two pipes (1) and the reinforcing fiber rope cool down, two layers of fiber reinforcement with opposite winding directions can be formed at the connection of the two pipes (1).

2. The CBFPE pipe connection molding process according to claim 1, characterized in that, The included angle between the inner reinforcing fiber rope (10) and the outer reinforcing fiber rope (9) is 30°~85°.

3. The CBFPE pipe connection molding process according to claim 1, characterized in that, In step 7, when heating the connection end of the two pipes (1) and the reinforcing fiber rope, tension is applied to the reinforcing fiber rope to ensure that the reinforcing fiber rope is in a taut state.

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