Continuous winding molding fiberglass jacking pipe manufacturing equipment

Abstract

This utility model belongs to the field of fiberglass jacking pipe manufacturing technology, and discloses a continuous winding molding fiberglass jacking pipe manufacturing device, including a yarn frame, a large yarn threading plate, a small yarn threading plate, a resin impregnation tank, and a driving component. The low-grammage yarn is pre-impregnated in the resin impregnation tank, which is equipped with a stranding component to strand the impregnated low-grammage yarn into bundles. Then, by arranging high-grammage yarn and the impregnated and stranded low-grammage yarn alternately along the length of the mandrel, it is ensured that each impregnated and stranded low-grammage yarn has adjacent high-grammage yarns on both sides. This effectively reduces the dry spot problem that may occur during the later resin impregnation process, ensures uniform resin penetration of each layup, further enhances interlayer bonding, optimizes the layup structure layout, and helps improve the molding quality and production efficiency of the pipe. The device has a simple structure and is easy to operate. It can adjust various parameters in real time according to production needs and changes in ambient temperature to ensure high efficiency and stability during the production process.

Description

Technical Field

[0001] This utility model relates to the field of fiberglass jacking pipe manufacturing technology, and in particular to a continuous winding molding fiberglass jacking pipe manufacturing device. Background Technology

[0002] With the acceleration of urbanization and the continuous advancement of infrastructure construction, the application scope of FRP (fiberglass reinforced plastic) jacking pipes is constantly expanding. In addition to traditional water supply and drainage systems, they have been widely extended to many key industries such as chemical, power, and ports. These applications place more stringent requirements on the performance and quality of the pipes, especially in terms of rigidity, jacking force resistance, and jacking distance, requiring superior structural performance. Therefore, the demand for thick-walled, high-jacking-force FRP jacking pipes is increasing daily.

[0003] However, the manufacturing process of thick-walled, high-lift-capacity fiberglass jacking pipes still mainly relies on the traditional fixed-length winding process, which often suffers from low production efficiency, unreasonable layer structure, and defects such as delamination and insufficient resin impregnation. Especially in the manufacturing of thick-walled pipes, due to the large number of composite material layers and the dense stacking of fiber layers, if the resin impregnation cannot fully penetrate each layer, "dry spots" are easily formed. The interfacial bonding force at the dry spots is weak, and the thick-walled, high-lift-capacity pipe is prone to delamination, further affecting the overall quality and production efficiency of the pipe. Utility Model Content

[0004] The purpose of this invention is to provide a continuous winding molding fiberglass jacking pipe manufacturing device, which can effectively optimize the layup structure layout, ensure that the composite material is fully impregnated with resin during the winding process, thereby enhancing the interlayer bonding force; at the same time, it has strong operability and helps to improve the molding quality and production efficiency of the pipe.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A continuous winding molding fiberglass jacking pipe manufacturing device includes:

[0007] The yarn rack includes a low-weight yarn spool placement area and a high-weight yarn spool placement area, which are used to support low-weight yarn spools and high-weight yarn spools, respectively.

[0008] A large yarn guide plate is set on the side of the yarn frame near the core mold, at the corresponding position of the high-grammage yarn ball placement area, and is used to guide the high-grammage yarn.

[0009] A small yarn guide plate is set on the side of the yarn frame near the core mold, at the corresponding position of the low-weight yarn ball placement area, and is used to guide the low-weight yarn.

[0010] The resin impregnation tank is located at the output end of the small yarn threading plate and is used to impregnate the low-weight yarn with resin. The output end of the resin impregnation tank is provided with a plying component, which can ply the impregnated low-weight yarn into a bundle.

[0011] A driving component capable of driving the core mold to move along its length extension direction;

[0012] The high-grammage yarn and the low-grammage yarn after plying are arranged alternately along the length of the mandrel to form a winding material, and are continuously wound around the surface of the mandrel circumferentially.

[0013] Furthermore, the large threading plate is arranged parallel to the length direction of the mandrel; and / or,

[0014] The small threading plate is arranged parallel to the length direction of the core mold.

[0015] Furthermore, the high-grammage yarn ball placement area is located above the low-grammage yarn ball placement area, and the large yarn threading plate is located above the small yarn threading plate, with the yarn threading holes of the large yarn threading plate and the small yarn threading plate being staggered along the length direction of the core mold.

[0016] Furthermore, the continuously wound fiberglass jacking pipe manufacturing device also includes a plate holder, on which both the large threading plate and the small threading plate are placed.

[0017] Furthermore, the continuous winding molding fiberglass top pipe manufacturing device also includes a yarn comb, which is located at the output end of the impregnation tank and can guide the high-weight yarn and the twisted low-weight yarn to pass through its yarn holes in an alternating manner and wind onto the surface of the core mold.

[0018] Furthermore, the output end of the large yarn guide plate is provided with a yarn guide rod, which can adjust the entry angle of the high-grammage yarn when it is introduced into the yarn comb.

[0019] Furthermore, the plying component includes a yarn plying comb for combing and plying multiple impregnated low-weight yarns in parallel and plying them into a bundle, wherein the plyed low-weight yarn has the same thickness as the high-weight yarn.

[0020] Furthermore, the number of yarns in the low-weight yarn after plying is equal to the number of yarns in the high-weight yarn output by the large yarn threading plate.

[0021] Furthermore, the ratio of the yarn supply mass per unit time of the low-grammage yarn spool to that of the high-grammage yarn spool is 2:1.

[0022] Furthermore, the continuously wound fiberglass jacking pipe manufacturing device also includes an online dressing grinding wheel, which is located at the tail of the mandrel.

[0023] The beneficial effects of this utility model are:

[0024] This utility model provides a continuous winding molding fiberglass jacking pipe manufacturing device, including a yarn frame, a large yarn threading plate, a small yarn threading plate, a resin impregnation tank, and a driving component. By setting up a resin impregnation tank, the device fully utilizes the characteristic that low-grammage yarn is easily and evenly impregnated by resin to pre-impregnate the low-grammage yarn, ensuring that it is fully impregnated by resin in the impregnation tank. At the same time, the output end of the impregnation tank is equipped with a twisting component to twist the impregnated low-grammage yarn into bundles, ensuring the neatness and consistency of the yarn. Through the twisting process, the tension stability of the yarn and the smoothness of the yarn feeding process are further improved. Subsequently, by staggering the high-grammage yarn with the impregnated and twisted low-grammage yarn along the length of the mandrel, it is ensured that each impregnated and twisted low-grammage yarn is adjacent to high-grammage yarn on both sides. This arrangement can effectively reduce the dry spot problem that may occur during the later resin impregnation process, ensure uniform resin penetration of each layup, further enhance the interlayer bonding force, improve the overall strength and reliability of the pipe, optimize the layup structure layout, and help improve the molding quality and production efficiency of the pipe. In addition, the device has a simple structure and is easy to operate. Operators can adjust various parameters in real time according to production needs and changes in ambient temperature to ensure high efficiency and stability in the production process. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the continuous winding molding fiberglass jacking pipe manufacturing device of this utility model.

[0026] In the picture:

[0027] 100, low weight yarn spool; 200, high weight yarn spool; 300, core mold;

[0028] 1. Yarn rack; 2. Low-grammage yarn spool placement area; 3. High-grammage yarn spool placement area; 4. Large yarn threading board; 5. Small yarn threading board; 6. Impregnation tank; 7. Plying components. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0033] like Figure 1 As shown, this embodiment provides a continuously wound fiberglass jacking pipe manufacturing device, including a yarn frame 1, a large yarn threading plate 4, a small yarn threading plate 5, a resin impregnation tank 6, and a driving component. The yarn frame 1 includes a low-grammage yarn ball placement area 2 and a high-grammage yarn ball placement area 3, respectively used to support low-grammage yarn balls 100 and high-grammage yarn balls 200. The large yarn threading plate 4 is located on the side of the yarn frame 1 near the mandrel 300, corresponding to the high-grammage yarn ball placement area 3, and is used to guide the high-grammage yarn. The small yarn threading plate 5 is located on the yarn frame 1 near the mandrel 300. On one side, at the corresponding position of the low-weight yarn bundle placement area 2, it is used to guide the low-weight yarn; the impregnation tank 6 is set at the output end of the small yarn threading plate 5 and is used to impregnate the low-weight yarn. The output end of the impregnation tank 6 is provided with a plying component 7, which can ply the impregnated low-weight yarn into bundles; the driving component can drive the mandrel 300 to move along its length extension direction; the high-weight yarn bundle 200 and the plyed low-weight yarn are arranged alternately along the length direction of the mandrel 300 and continuously wound around the surface of the mandrel 300 circumferentially.

[0034] By setting up the impregnation tank 6, the characteristic that low-weight yarns are easily and evenly impregnated by resin is fully utilized to pre-impregnate the low-weight yarns, ensuring that they are fully impregnated by resin in the impregnation tank 6. At the same time, the output end of the impregnation tank 6 is equipped with a plying component 7, which is used to ply the impregnated low-weight yarns into bundles, ensuring the neatness and consistency of the yarns. Through the plying process, the tension stability of the yarns during the forming process and the smoothness of the yarn feeding process are further improved. Subsequently, by staggering the high-grammage yarn and the impregnated low-grammage yarn along the 300mm length of the mandrel, it is ensured that each impregnated low-grammage yarn is adjacent to high-grammage yarn on both sides. This arrangement effectively reduces the dry spot problem that may occur during the later resin impregnation process, ensures uniform resin penetration of each layup, further enhances the interlayer bonding force, improves the overall strength and reliability of the pipe, optimizes the layup structure layout, and helps to improve the molding quality and production efficiency of the pipe. In addition, the device has a simple structure and is easy to operate. Operators can adjust various parameters in real time according to production needs and changes in ambient temperature to ensure high efficiency and stability in the production process.

[0035] It should be noted that in the winding process of composite materials, low-grammage yarn and high-grammage yarn are distinguished according to the linear density (i.e., basis weight) of the yarn; low-grammage yarn refers to yarn with a lower linear density, and the linear density of common low-grammage yarn is approximately between 200 Tex and 600 Tex; high-grammage yarn refers to yarn with a higher linear density, and the linear density of common high-grammage yarn is usually between 1200 Tex and 2400 Tex. Both can be made of glass fiber materials, but are not limited to.

[0036] Specifically, the plying component 7 includes a yarn plying comb, which is used to comb and ply multiple impregnated low-weight yarns in parallel and into bundles. The plyed low-weight yarns have the same thickness as the high-weight yarns. By combing and plying the low-weight yarns in parallel into bundles with the same thickness as the high-weight yarns through the yarn plying comb, the yarns can be laid more evenly on the surface of the mandrel 300, ensuring the tension consistency of the two during the winding process. This results in a tighter interlacing and winding, enhancing the bonding force between the layers, thereby effectively improving the tensile strength, compressive strength, and tear resistance of the pipe.

[0037] Furthermore, the number of low-grammage yarns after plying is equal to the number of high-grammage yarns output by the large yarn threading plate 4. When the number of low-grammage yarns after plying is equal to the number of high-grammage yarns output by the large yarn threading plate 4, the number of yarns in each layer during the winding process remains consistent, ensuring that the yarns are evenly laid on the surface of the pipe, avoiding uneven textures or excessively dense areas on the surface caused by an imbalance in the number of yarns, and improving the smoothness of the surface.

[0038] To further improve interlayer bonding, in some embodiments, the ratio of the yarn supply mass of low-grammage yarn spool 100 to high-grammage yarn spool 200 per unit time is 2:1. By supplying twice the amount of yarn from low-grammage yarn spool 100 to high-grammage yarn spool 200 per unit time, the low-grammage yarn occupies a larger proportion during the winding process, which helps to improve the resin impregnation effect and allows the resin to be distributed more evenly among all winding layers.

[0039] In some optional embodiments, the large threading plate 4 is arranged parallel to the length direction of the mandrel 300; and / or, the small threading plate 5 is arranged parallel to the length direction of the mandrel 300. This arrangement ensures a smooth and consistent guiding path for low-grammage yarns and / or high-grammage yarns, preventing twisting, skewing, or uneven tension during winding, thereby reducing yarn bounce and uneven stress. Simultaneously, the parallel arrangement of the large threading plate 4 and / or the small threading plate 5 allows for precise control of the yarn winding angle, avoiding uneven yarn spacing or excessive overlap during winding, thus improving the uniformity of the winding layer. This design further enhances the interlayer bonding force of the tube, reduces interlayer gaps, and improves the compressive and tensile strength of the tube.

[0040] Specifically, the high-grammage yarn spool placement area 3 is located above the low-grammage yarn spool placement area 2, and the large yarn threading plate 4 is located above the small yarn threading plate 5. The threading holes of the large yarn threading plate 4 and the small yarn threading plate 5 are staggered along the length of the mandrel 300. By placing the high-grammage yarn spool placement area 3 above the low-grammage yarn spool placement area 2 and the large yarn threading plate 4 above the small yarn threading plate 5, this arrangement ensures that the guide paths of the high-grammage yarn and the low-grammage yarn remain physically independent, avoiding mutual interference or intersection, and ensuring the yarn... The free flow of yarn reduces uneven winding and tension imbalance caused by yarn interlacing. Furthermore, the reasonable arrangement of the large yarn threading plate 4 and the small yarn threading plate 5 ensures uniform tension distribution when the yarn passes through the threading plate, avoiding tension differences between the yarns. In addition, the staggered arrangement of the yarn threading holes of the large yarn threading plate 4 and the small yarn threading plate 5 allows low-weight yarns and high-weight yarns to be wound more evenly on the surface of the mandrel 300, which helps to reduce local accumulation or gaps in the yarns and allows the two yarns of different weights to bond better, improving the interlayer adhesion.

[0041] To make the large threading plate 4 and the small threading plate 5 more stable, in some embodiments, the continuous winding molding fiberglass jacking pipe manufacturing device also includes a plate holder, on which both the large threading plate 4 and the small threading plate 5 are placed. The plate holder provides a stable platform, so that the large threading plate 4 and the small threading plate 5 will not shift or shake due to external vibration, collision or mechanical movement during use. This ensures that the positions of the large threading plate 4 and the small threading plate 5 are not affected by external factors and always remain in the predetermined accurate position.

[0042] In some embodiments, the continuous winding molding fiberglass jacking pipe manufacturing apparatus further includes a yarn comb, which is located at the output end of the twisting component 7. The yarn comb guides the high-grammage yarn and the twisted low-grammage yarn to be interlaced and passed through its yarn holes, and wound onto the surface of the mandrel 300. The yarn comb guides the yarn into its yarn holes by controlling the way the yarn is laid, ensuring that the high-grammage yarn and the low-grammage yarn are correctly laid in an interlaced manner and that the yarn is evenly distributed. Before the yarn is wound, the yarn is straightened, avoiding winding defects caused by excessive overlap or uneven gaps in the yarn.

[0043] Furthermore, the output end of the large yarn guide plate 4 is equipped with a yarn guide rod, which can adjust the entry angle of high-grammage yarn when it is introduced into the yarn comb. By adjusting the position of the yarn guide rod, the entry angle of high-grammage yarn when it enters the yarn comb can be precisely controlled, ensuring that the yarn always enters the yarn comb at the optimal angle, thereby ensuring stability during the winding process. Optimizing the entry angle helps to guide the high-grammage yarn smoothly in the yarn comb and reduces friction or yarn damage caused by improper angle.

[0044] In some embodiments, the continuous winding molding fiberglass jacking pipe manufacturing apparatus further includes an online dressing grinding wheel, which is located at the tail of the mandrel 300. The online dressing grinding wheel can directly dress the jacking pipe end during the production process without additional post-processing or manual intervention, reducing the secondary dressing steps required in the traditional production mode, making the entire production process smoother and significantly improving production efficiency.

[0045] For example, the driving component may be, but is not limited to, a servo motor, and no specific limitation is made here.

[0046] The following is a method for manufacturing continuously wound fiberglass jacking pipes:

[0047] Before production begins, preparation work is carried out by heating the mandrel 300 to ensure it reaches the appropriate temperature for forming the fiberglass top tube, so that the composite material can be formed and cured smoothly. Then, the raw materials required for production are prepared, including low-weight yarn spools 100 and high-weight yarn spools 200, which are placed in the corresponding low-weight yarn spool placement area 2 and high-weight yarn spool placement area 3, respectively. At the same time, resin is filled into the impregnation tank 6 to prepare for the subsequent impregnation process.

[0048] Next, the yarn is arranged by passing the high-grammage yarn in the high-grammage yarn spool 200 through the large yarn-passing plate 4 and passing the low-grammage yarn in the low-grammage yarn spool 100 through the small yarn-passing plate 5 and the impregnation tank 6. The yarn is impregnated in the impregnation tank 6 and then twisted by the twisting component 7. The twisted low-grammage yarn and the high-grammage yarn are then passed alternately through the yarn holes in the yarn comb.

[0049] Afterwards, the drive unit is started and its normal operation is ensured. According to production requirements, low-grammage yarn and high-grammage yarn are alternately wound along the surface of the mandrel 300 to begin winding the fiberglass jacking tube. During the winding process, ensure that the yarn is correctly threaded throughout the process to avoid falling off or tangling. Control the number of low-grammage pre-impregnated winding yarns and adjust the proportion of low-grammage yarns in real time according to the curing status of the fiberglass jacking tube. If the curing speed is found to be slow or fast, adjust the number of low-grammage yarns in time to ensure that each layer of yarn is fully impregnated with resin and to ensure that the mechanical properties of the jacking tube reach the optimal state.

[0050] Subsequently, based on the winding progress, the online dressing grinding wheel is used to adjust the jacking pipe port in real time to ensure that the size and shape of the port meet the standards, avoiding manual adjustment in the later stage and saving production time and labor costs.

[0051] Finally, after the winding and curing process, the production of the fiberglass jacking pipe is completed. The produced fiberglass jacking pipe is inspected to confirm that its dimensions, surface quality and mechanical properties meet the technical requirements.

[0052] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A device for manufacturing a continuous winding forming glass steel pipe, characterized in that, include: The yarn rack (1) includes a low-weight yarn ball placement area (2) and a high-weight yarn ball placement area (3), which are used to support low-weight yarn balls (100) and high-weight yarn balls (200), respectively. A large yarn guide plate (4) is set on the side of the yarn frame (1) near the core mold (300) and located at the corresponding position of the high weight yarn ball placement area (3) to guide the high weight yarn. The small yarn guide plate (5) is set on the side of the yarn frame (1) near the core mold (300) and located at the corresponding position of the low weight yarn ball placement area (2) to guide the low weight yarn. The impregnation tank (6) is located at the output end of the small yarn threading plate (5) and is used to impregnate the low-weight yarn. The output end of the impregnation tank (6) is provided with a plying component (7) which can ply the impregnated low-weight yarn into bundles. A driving component capable of driving the core mold (300) to move along its length extension direction; The high-weight yarn and the low-weight yarn after plying are arranged alternately along the length of the mandrel (300) and continuously wound around the surface of the mandrel (300) circumferentially.

2. The continuous winding forming glass steel pipe production device according to claim 1, characterized in that, The large threading plate (4) is arranged parallel to the length direction of the core mold (300); and / or, The small threading plate (5) is arranged parallel to the length direction of the core mold (300).

3. The continuous winding forming glass steel pipe production device according to claim 2, characterized in that, The high-grammage yarn ball placement area (3) is located above the low-grammage yarn ball placement area (2), and the large yarn threading plate (4) is located above the small yarn threading plate (5). The yarn threading holes of the large yarn threading plate (4) and the yarn threading holes of the small yarn threading plate (5) are staggered along the length direction of the core mold (300).

4. The continuous winding forming glass steel pipe production device according to claim 3, characterized in that, The continuous winding molding fiberglass jacking pipe manufacturing device also includes a plate holder, on which the large threading plate (4) and the small threading plate (5) are placed.

5. The continuous winding forming glass steel pipe production device according to claim 4, characterized in that, The continuous winding molding fiberglass top pipe manufacturing device also includes a yarn comb, which is located at the output end of the plying component (7) and can guide the high-weight yarn and the plyed low-weight yarn to be passed through its yarn holes in an alternating manner and wound onto the surface of the core mold (300).

6. The continuous winding forming glass steel pipe manufacturing device according to claim 5, characterized in that, The output end of the large yarn guide plate (4) is provided with a yarn guide rod, which can adjust the yarn entry angle when the high weight yarn is introduced into the yarn comb.

7. The continuous winding forming glass steel pipe manufacturing device according to any one of claims 1-6, characterized in that, The plying component (7) includes a yarn plying comb, which is used to comb and ply multiple impregnated low-weight yarns in parallel and ply them into a bundle. The plyed low-weight yarn has the same thickness as the high-weight yarn.

8. The continuous winding forming glass steel pipe manufacturing device according to claim 7, characterized in that, The number of low-weight yarns after plying is equal to the number of high-weight yarns output by the large yarn threading plate (4).

9. The continuous winding forming glass steel pipe manufacturing device according to claim 8, characterized in that, The ratio of the weight of yarn supplied per unit time to that of the low-weight yarn spool (100) to that of the high-weight yarn spool (200) is 2:

1.

10. The continuous winding forming glass steel pipe manufacturing device according to claim 9, characterized in that, The continuous winding molding fiberglass jacking pipe manufacturing device also includes an online dressing grinding wheel, which is located at the tail of the mandrel (300).

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