Preforming device for glass fiber rod

By designing a guide plate, preforming frame, and guiding mechanism, the problems of insufficient insulation layer strength and uneven fiber distribution in the fiberglass rod were solved, achieving uniform molding of the fiberglass rod and precise positioning of the signal wire, thus improving the structural and performance stability of the fiberglass rod.

CN224224580UActive Publication Date: 2026-05-12NANJING HITECH COMPOSITES CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING HITECH COMPOSITES CO LTD
Filing Date
2025-05-23
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The insulation material of existing fiberglass rods has poor strength and is easily damaged. Furthermore, the pre-forming tooling design does not fully consider the uniformity of fiber distribution, resulting in uneven rod structure and difficulty in meeting the requirements of high-quality applications.

Method used

The design employs a guide plate, first and second preforming frames, and a mold structure. By uniformly arranging glass fiber yarns on the guide plate and preforming frames, combined with conveying rollers and a guiding mechanism, the glass fiber yarns are ensured to be evenly distributed on the signal wires and precisely guided into the mold for forming by a servo motor-driven guiding mechanism.

Benefits of technology

This technology enables uniform distribution and precise positioning of glass fiber yarns on signal conductors, improves the structural uniformity and performance stability of glass fiber rods, protects signal conductors from external damage, and ensures molding quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a preforming device for a glass fiber rod, which comprises a guide disc, the center of the guide disc is provided with a wire hole, the periphery of the outer side of the guide disc is provided with a plurality of uniformly arranged glass fiber yarn holes, the output end of the guide disc is provided with a first preforming frame, and the output end of the first preforming frame is provided with a second preforming frame. And a mold is arranged at the output end of the second pre-forming frame. Through the arrangement of the first pre-forming frame and the second pre-forming frame, yarns infiltrated with resin can be annularly and uniformly distributed, a good foundation is provided for subsequent forming, meanwhile, signal wires can be accurately positioned in the center positions of the first pre-forming frame and the second pre-forming frame, and the signal wires can be accurately positioned in the center positions of the first pre-forming frame and the second pre-forming frame. The signal wire is ensured to be located in the center of the glass fiber after the glass fiber rod is formed, and the signal wire is effectively protected and prevented from being damaged by external force and environment.
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Description

Technical Field

[0001] This utility model belongs to the field of glass fiber rod technology, specifically relating to a preforming device for glass fiber rods. Background Technology

[0002] Currently, in signal wire applications, the insulation layer mostly uses materials such as polyvinyl chloride (PVC) and cross-linked polyethylene (XLPE). However, these materials have poor strength, and the insulation layer is easily damaged when subjected to external forces. This can seriously affect the normal use of signal wires and may even cause safety hazards. At the same time, the preforming tooling used is simple and crude. The design of the preforming tooling often focuses on multiple fibers in the same position without fully considering the circular and symmetrical distribution between fibers. This results in insufficient structural uniformity and performance stability of the produced rods, making it difficult to meet the requirements of some application scenarios with high rod quality requirements. Therefore, there is an urgent need for a preforming device for glass fiber rods to solve the above problems. Utility Model Content

[0003] In view of the problems mentioned above in the background art, the purpose of this utility model is to provide a preforming device for glass fiber rods.

[0004] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0005] A preforming device for glass fiber rods includes a guide plate, a wire hole at the center of the guide plate, a plurality of evenly arranged glass fiber yarn holes around the outer periphery of the guide plate, a first preforming frame at the output end of the guide plate, a second preforming frame at the output end of the first preforming frame, and a mold at the output end of the second preforming frame.

[0006] The first preforming frame includes a first preforming seat, the center of which is provided with a first signal wire hole, and the outer side of the first preforming seat is provided with a plurality of first partition plates. The plurality of first partition plates are evenly arranged in a cross shape on the outer side of the first preforming seat and form four first preforming arc grooves.

[0007] The second preforming frame includes a second preforming seat, the center of which is provided with a second signal wire hole, and the outer side of the second preforming seat is provided with a plurality of second partition plates. The plurality of second partition plates are evenly arranged in a cross shape on the outer side of the second preforming seat and form four second preforming arc grooves.

[0008] Furthermore, the first preforming frame and the second preforming frame have the same structure, but the first preforming frame is larger than the second preforming frame. This structural design facilitates the guidance of the glass fiber yarn on the signal wire through the first and second preforming frames.

[0009] Furthermore, a conveying roller is provided between the first preforming frame and the second preforming frame. This structural design can effectively convey signal wires.

[0010] Further specifying, the input end of the mold is equipped with a guiding mechanism, which includes a frame. A servo motor is mounted at the bottom of the frame, and a lead screw is connected to the power output end of the servo motor. Bearings are mounted on the upper and lower sides of the lead screw, and these bearings are installed within the frame. The lead screw is connected to a nut moving seat, and a guide frame is mounted on one side of the nut moving seat. Guide rollers are mounted on the upper and lower sides of the guide frame, and the guide rollers have grooves. A slide is mounted on the other side of the guide frame, and a guide rod is slidably connected to the slide. The guide rod is installed within the frame. This structural design precisely guides the path of the material entering the mold, ensuring it remains on the predetermined track and preventing deviation or misalignment.

[0011] Furthermore, the output end of the guiding mechanism is equipped with a traction device, and the output end of the traction device is connected to a cutting device. This structural design facilitates the traction of glass fiber yarn and signal wires into the mold for forming, and also facilitates cutting after forming.

[0012] The beneficial effects of this utility model are as follows: By setting the first preforming frame and the second preforming frame, this utility model can make the resin-impregnated yarn evenly distributed in a ring, providing a good foundation for subsequent molding. At the same time, it can accurately position the signal wire at the center of the first preforming frame and the second preforming frame, ensuring that the signal wire is located in the center of the glass fiber after the glass fiber rod is formed, effectively protecting the signal wire and preventing it from being damaged by external forces and the environment. Attached Figure Description

[0013] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0014] Figure 1 This is a schematic diagram of the structure of a preforming device for glass fiber rods according to an embodiment of the present invention;

[0015] Figure 2 This is a schematic diagram of a guide plate structure for a preforming device for glass fiber rods according to an embodiment of the present invention;

[0016] Figure 3 This is a schematic diagram of the first preforming frame structure of a preforming device for glass fiber rods according to an embodiment of the present invention;

[0017] Figure 4 This is a schematic diagram of the second preforming frame structure of a preforming device for glass fiber rods according to an embodiment of the present invention;

[0018] Figure 5 This is a schematic diagram of the guiding mechanism structure of a preforming device for glass fiber rods according to an embodiment of the present invention;

[0019] The symbols for the main components are explained below:

[0020] Guide plate 1, wire hole 2, fiberglass yarn hole 3;

[0021] First preforming frame 4, first preforming seat 401, first signal wire hole 402, first partition plate 403, first preforming arc groove 404;

[0022] Second preforming frame 5, second preforming seat 501, second signal wire hole 502, second partition plate 503, second preforming arc groove 504.

[0023] Mold 6, conveyor roller 7;

[0024] Guide mechanism 8, frame 801, servo motor 802, lead screw 803, bearing 804, nut moving seat 805, guide frame 806, guide roller 807, wire groove 809, slide 810, guide rod 811;

[0025] Traction device 9, cutting device 10. Detailed Implementation

[0026] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] like Figure 1-5 As shown, this utility model provides a preforming device for glass fiber rods. The guide plate 1 has a wire hole 2 at its center, and a number of evenly arranged glass fiber yarn holes 3 are provided around the outer periphery of the guide plate 1. The output end of the guide plate 1 is provided with a first preforming frame 4, the output end of the first preforming frame 4 is provided with a second preforming frame 5, and the output end of the second preforming frame 5 is provided with a mold 6.

[0028] The first preforming frame 4 includes a first preforming seat 401. The center of the first preforming seat 401 is provided with a first signal wire hole 402. The outer side of the first preforming seat 401 is provided with a plurality of first partition plates 403. The plurality of first partition plates 403 are evenly arranged in a cross shape on the outer side of the first preforming seat 401 and form four first preforming arc grooves 404.

[0029] The second preforming frame 5 includes a second preforming seat 501. The center of the second preforming seat 501 is provided with a second signal wire hole 502. The outer side of the second preforming seat 501 is provided with a plurality of second partition plates 503. The plurality of second partition plates 503 are evenly arranged in a cross shape on the outer side of the second preforming seat 501 and form four second preforming arc grooves 504.

[0030] Preferably, the first preforming frame 4 and the second preforming frame 5 have the same structure, but the first preforming frame 4 is larger than the second preforming frame 5. This structural design facilitates the guidance of the glass fiber yarn on the signal wire through the first preforming frame 4 and the second preforming frame 5. In practice, other structural shapes of the first preforming frame 4 and the second preforming frame 5 can also be considered depending on the specific circumstances.

[0031] Preferably, a conveyor roller 7 is provided between the first preforming frame 4 and the second preforming frame 5. This structural design can effectively convey signal wires. In practice, other structural shapes of the conveyor roller 7 can also be considered depending on the specific circumstances.

[0032] Preferably, the input end of the mold 6 is provided with a guiding mechanism 8. The guiding mechanism 8 includes a frame 801, a servo motor 802 is mounted at the bottom of the frame 801, and a lead screw 803 is connected to the power output end of the servo motor 802. Bearings 804 are mounted on the upper and lower sides of the lead screw 803, and the upper and lower bearings 804 are installed inside the frame 801. The lead screw 803 is connected to a nut moving seat 805. A guide frame 806 is mounted on one side of the nut moving seat 805. Guide rollers 807 are mounted on the upper and lower sides of the guide frame 806. The guide rollers 807 are provided with grooves 809. A slide 810 is mounted on the other side of the guide frame 806. A guide rod 811 is slidably connected to the slide 810 and is installed inside the frame 801. This structural design accurately guides the path of the mold 6, ensuring that it is always on the predetermined track and avoiding deviation or misalignment. In practice, other structural shapes of the guiding mechanism 8 can also be considered depending on the specific situation.

[0033] Preferably, the output end of the guiding mechanism 8 is provided with a traction device 9, and the output end of the traction device 9 is connected to a cutting device 10. This structural design facilitates the traction of glass fiber yarn and signal wire into the mold 6 for forming, and also facilitates cutting after forming. In practice, other structural shapes of the traction device 9 and the cutting device 10 can also be considered depending on the specific circumstances.

[0034] In this embodiment, during use, the glass fiber yarn is impregnated with resin and then inserted into the glass fiber yarn hole 3 of the guide plate 1. After passing through the first preforming frame 4 and the second preforming frame 5, it is distributed in a ring. By controlling the number of fibers in each first preforming arc groove 404 and the second preforming arc groove 504 to be the same, the uniformity of the glass fiber yarn distribution is ensured. The glass fiber yarn travels from the four preforming arc grooves on the outer ring of the first preforming frame 4 and the second preforming frame 5, ensuring that the position of the yarn is fixed when entering the mold. The signal wire is input from the wire hole 2 of the guide plate 1, passes through the first signal wire hole 402 and the second signal wire hole 502 on the first preforming frame 4 and the second preforming frame 5, and is output from the second signal wire hole 502. The glass fiber yarn is evenly attached to the signal wire and finally enters the mold 6 for curing.

[0035] During the conveying process, the signal wire is assisted by the conveying roller 7. After the glass fiber yarn and the signal wire are output from the second signal wire hole 502 and the second preforming arc groove 504 of the second preforming frame 5, they enter the guiding mechanism 8 and are guided into the mold 6 for solidification. This mechanism accurately guides the signal wire into the mold 6, ensuring that it is always on the predetermined track and avoiding deviation or misalignment.

[0036] When the guiding mechanism 8 is in use, the servo motor 802 can be started to drive the lead screw 803 to rotate along the bearing 804. The lead screw 803 drives the nut moving seat 805, the nut moving seat 805 drives the guide frame 806, and the guide frame 806 drives the inner guide roller 807 and the outer slide seat 810 to slide along the guide rod 811. This adjusts the guide roller 807 in the guide frame 806 so that the guide roller 807 can accurately guide the glass fiber yarn and signal wire into the mold 6.

[0037] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A preforming device for glass fiber rods, characterized in that: Includes a guide plate (1), the center of which is provided with a wire hole (2), and the outer periphery of the guide plate (1) is provided with a plurality of uniformly arranged glass fiber yarn holes (3), the output end of the guide plate (1) is provided with a first preforming frame (4), the output end of the first preforming frame (4) is provided with a second preforming frame (5), and the output end of the second preforming frame (5) is provided with a mold (6). The first preforming frame (4) includes a first preforming seat (401), the center of the first preforming seat (401) is provided with a first signal wire hole (402), and the outer side of the first preforming seat (401) is provided with a plurality of first partition plates (403). The plurality of first partition plates (403) are evenly arranged in a cross shape on the outer side of the first preforming seat (401) and form four first preforming arc grooves (404). The second preforming frame (5) includes a second preforming seat (501), the center of which is provided with a second signal wire hole (502), and the outer side of the second preforming seat (501) is provided with a plurality of second partition plates (503). The plurality of second partition plates (503) are evenly arranged in a cross shape on the outer side of the second preforming seat (501) and form four second preforming arc grooves (504).

2. The preforming device for glass fiber rods according to claim 1, characterized in that: The first preforming frame (4) and the second preforming frame (5) have the same structure, but the first preforming frame (4) is larger in size than the second preforming frame (5).

3. The preforming device for glass fiber rods according to claim 2, characterized in that: A conveying roller (7) is provided between the first preforming frame (4) and the second preforming frame (5).

4. The preforming device for glass fiber rods according to claim 3, characterized in that: The input end of the mold (6) is provided with a guide mechanism (8). The guide mechanism (8) includes a frame (801). A servo motor (802) is installed at the bottom of the frame (801). The power output end of the servo motor (802) is connected to a lead screw (803). Bearings (804) are installed on the upper and lower sides of the lead screw (803). The bearings (804) on the upper and lower sides are installed in the frame (801). The lead screw (803) is connected to a nut moving seat (805). A guide frame (806) is installed on one side of the nut moving seat (805). Guide rollers (807) are installed on the upper and lower sides of the guide frame (806). A groove (809) is provided on the guide roller (807). A slide (810) is installed on the other side of the guide frame (806). A guide rod (811) is slidably connected to the slide (810). The guide rod (811) is installed in the frame (801).

5. A preforming device for glass fiber rods according to claim 4, characterized in that: The output end of the guiding mechanism (8) is provided with a traction device (9), and the output end of the traction device (9) is connected to a cutting device (10).