A fiberglass pipe winding molding die

By setting threaded connecting molds and elastic compensation gaskets in the fiberglass pipe winding molding mold, combined with hydraulic push rods and scale lines, the problem of fixed mold length in traditional molds is solved, enabling flexible adjustment of mold length and reducing production costs.

CN224276176UActive Publication Date: 2026-05-26XINJIANG XINYE COMPOSITE MATERIAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINJIANG XINYE COMPOSITE MATERIAL CO LTD
Filing Date
2025-06-24
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Traditional fiberglass pipe winding molds have fixed lengths, which increases the cost of changing molds and makes it impossible to produce fiberglass pipes of different lengths.

Method used

Design a fiberglass pipe winding molding die. By setting a connecting die that is threaded to the end die, select an appropriate number of connecting dies to connect with the end die as needed, adjust the die length, use elastic compensation shims to fill the thread gap, and use hydraulic push rods and scale lines to control the position of the baffle to adjust the pipe length.

Benefits of technology

The mold length can be flexibly adjusted, reducing the cost of producing FRP pipes of different lengths and enhancing the practicality of the mold.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224276176U_ABST
    Figure CN224276176U_ABST
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Abstract

This utility model discloses a fiberglass pipe winding molding die, comprising a die assembly. The die assembly includes end molds at both ends and connecting molds disposed inside the two end molds. A connecting shaft is fixed to the middle of the outer side of each of the two end molds. Internal threads and external threads are respectively provided on the inner side of each of the two end molds. At least one connecting mold is provided, with threads at both ends adapted to the internal and external threads. The end molds and connecting molds are threaded together by the external and internal threads. This fiberglass pipe winding molding die, by providing at least one connecting mold threadedly connected to the end molds, allows for the selection of an appropriate number of connecting molds to connect with the end molds according to actual usage, thereby adjusting the overall length of the die. This enables the die to produce fiberglass pipes of different lengths, reducing costs and enhancing practicality.
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Description

Technical Field

[0001] This utility model relates to the field of fiberglass pipe mold technology, specifically a fiberglass pipe winding molding mold. Background Technology

[0002] Fiberglass pipes are widely used in petrochemical, municipal water supply and drainage, and marine engineering fields due to their excellent corrosion resistance, high strength, and lightweight characteristics. Their manufacturing primarily employs a fiber winding process, where resin-impregnated glass fibers are laid on the surface of a rotating mold, and after curing, the pipe structure is formed.

[0003] Traditional fiberglass pipe winding molds are mostly of fixed length. If different lengths of fiberglass pipes need to be produced, the entire mold set often needs to be replaced, which increases the cost. Therefore, we propose a fiberglass pipe winding mold. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0005] In view of the above and / or existing problems in fiberglass pipe molds, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a fiberglass pipe winding molding die. By setting at least one connecting die that is threadedly connected to the end die, the appropriate number of connecting dies can be selected to connect with the end die according to the actual use, thereby adjusting the length of the entire die. This allows the die to produce fiberglass pipes of different lengths, reducing its cost and enhancing its practicality.

[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:

[0008] A fiberglass pipe winding molding die, comprising:

[0009] A mold assembly includes end molds at both ends and a connecting mold disposed inside the two end molds. A connecting shaft is fixed at the middle of the outer side of the two end molds. Internal threads and external threads are respectively provided on the inner side of the two end molds. At least one connecting mold is provided. The two ends of the connecting mold are respectively provided with threads adapted to the internal threads and external threads. The end molds and the connecting mold are threaded together under the action of the external threads, internal threads and connecting threads.

[0010] In a preferred embodiment of the fiberglass pipe winding molding die of this utility model, at least one connection point of the end die and the connecting die is provided with an elastic compensation gasket.

[0011] In a preferred embodiment of the fiberglass pipe winding molding die of this utility model, a baffle is provided on the outside of the end die.

[0012] As a preferred embodiment of the fiberglass pipe winding molding mold of this utility model, L-shaped plates are installed at both ends of the outer side of the end mold, and hydraulic push rods are provided on the L-shaped plates. The hydraulic push rods are fixedly connected to the baffles, and scale lines are provided on the outer wall of the end mold.

[0013] In a preferred embodiment of the fiberglass pipe winding molding mold described in this utility model, an mounting plate is fixed on the L-shaped plate, and bolts are provided on the mounting plate, with the bolts penetrating the mounting plate into the end mold.

[0014] In a preferred embodiment of the fiberglass pipe winding molding die of this utility model, the inner wall of the baffle is provided with a protective pad, the protective pad being made of rubber.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the fiberglass pipe winding molding mold has at least one connecting mold that is threadedly connected to the end mold so that when in use, the appropriate number of connecting molds can be selected to connect with the end mold according to the actual use, thereby adjusting the length of the entire mold, so that the mold can produce fiberglass pipes of different lengths, reducing its cost and enhancing its practicality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. 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. Among them:

[0017] Figure 1 This is a three-dimensional structural diagram of a fiberglass pipe winding molding die.

[0018] Figure 2 This is a three-dimensional cross-sectional view of a mold assembly for winding and forming a fiberglass pipe.

[0019] Figure 3 This is a three-dimensional structural diagram of a fiberglass pipe winding molding die.

[0020] In the diagram: 100, mold assembly; 110, end mold; 111, connecting shaft; 120, connecting mold; 200, baffle; 201, L-shaped plate; 202, hydraulic push rod; 203, mounting plate; 204, bolt; 205, protective pad. Detailed Implementation

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0024] This utility model provides a fiberglass pipe winding molding die. By setting at least one connecting die that is threadedly connected to the end die, the appropriate number of connecting dies can be selected to connect with the end die according to the actual use, thereby adjusting the length of the entire die. This allows the die to produce fiberglass pipes of different lengths, reducing its cost and enhancing its practicality.

[0025] Figures 1-3 The diagram shown is a structural schematic of one embodiment of a fiberglass pipe winding molding die according to this utility model. Please refer to [link / reference]. Figures 1-3 The fiberglass pipe winding molding die of this embodiment includes a die assembly 100 as its main body.

[0026] The mold assembly 100 includes end molds 110 at both ends and a connecting mold 120 disposed inside the two end molds 110. A connecting shaft 111 is fixed at the middle of the outer side of the two end molds 110. The inner sides of the two end molds 110 are respectively provided with internal threads and external threads. At least one connecting mold 120 is provided. The two ends of the connecting mold 120 are respectively provided with threads adapted to the internal threads and external threads. The end molds 110 and the connecting mold 120 are threaded together under the action of the external threads, internal threads and threads. Preferably, in this embodiment, at least one connection point between the end mold 110 and the connecting mold 120 is provided with an elastic compensation gasket. The elastic compensation gasket at the connection point of the end mold 110 and the connecting mold 120 can fill the threaded fit gap, ensuring a continuous and smooth transition at the joint. A baffle 200 is provided on the outside of the end mold 110. The baffle 200 on the outside of the end mold 110 can prevent axial overflow of the resin fiber mixture during fiber winding, ensuring right-angle forming of the pipe end. L-shaped plates 201 are installed at both ends of the outer side of the end mold 110. Hydraulic push rods 202 are provided on the L-shaped plates 201 and are fixedly connected to the baffles 200. The outer wall of the end mold 110 is provided with scale lines. The hydraulic push rods 202 can control the movement of the baffles 200 outside the end mold 110 to adjust the position between the two baffles 200. This allows for adjustment of the length of the subsequent fiberglass pipe. A scale line is also provided to indicate the distance between the two baffles 200, enabling the operator to directly observe this distance. An mounting plate 203 is fixed to the L-shaped plate 201, and bolts 204 are installed on the mounting plate 203, extending through the mounting plate 203 into the end mold 110. The L-shaped plate 201 is mounted on the end mold 110 by the bolts 204 under the action of the mounting plate 203. Later, the operator can remove the bolts 204 to disassemble and replace the entire baffle 200. A protective pad 205 made of rubber is provided on the inner wall of the baffle 200. The protective pad 205 protects the outer wall of the end mold 110, preventing direct contact and wear between the inner wall of the baffle 200 and the end mold 110.

[0027] Combination Figures 1-3The fiberglass pipe winding molding die of this embodiment is used as follows: During use, a suitable number of connecting molds 120 and end molds 110 are selected and connected according to the length of the fiberglass pipe to be produced. When the connecting molds 120 and end molds 110 are threaded together, elastic compensation shims provided at the connection point of the end molds 110 and connecting molds 120 can fill the thread fit gap, ensuring a continuous and smooth transition at the joint. Then, the entire mold is connected to the winding machine via the connecting shaft 111. During winding, baffles 200 provided outside the end molds 110 can prevent axial overflow of the resin fiber mixture, ensuring right-angle forming of the pipe ends. During production, the hydraulic push rod 202 can control the movement of the baffles 200 outside the end molds 110 to adjust the distance between the two baffles 200, thereby adjusting the length of the subsequent fiberglass pipe. Scale lines are provided so that the operator can directly observe the distance between the two baffles 200, thus knowing the length of the produced fiberglass pipe.

[0028] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A glass fiber reinforced plastic pipe winding forming mold characterized by, include: The mold assembly (100) includes end molds (110) at both ends and a connecting mold (120) disposed inside the two end molds (110). A connecting shaft (111) is fixed at the middle of the outer side of the two end molds (110). The inner sides of the two end molds (110) are respectively provided with internal threads and external threads. At least one connecting mold (120) is provided. The two ends of the connecting mold (120) are respectively provided with threads adapted to the internal threads and external threads. The end molds (110) and the connecting mold (120) are threaded together under the action of the external threads, internal threads and connecting threads.

2. A glass steel pipe winding forming mold according to claim 1, characterized in that, At least one connection point between the end mold (110) and the connecting mold (120) is provided with an elastic compensation pad.

3. The fiberglass pipe winding molding die according to claim 1, characterized in that, A baffle (200) is provided on the outside of the end mold (110).

4. The fiberglass pipe winding molding die according to claim 3, characterized in that, L-shaped plates (201) are installed on both outer ends of the end mold (110). A hydraulic push rod (202) is provided on the L-shaped plate (201). The hydraulic push rod (202) is fixedly connected to the baffle (200). The outer wall of the end mold (110) is provided with scale lines.

5. The fiberglass pipe winding molding die according to claim 4, characterized in that, An mounting plate (203) is fixed on the L-shaped plate (201), and a bolt (204) is provided on the mounting plate (203). The bolt (204) passes through the mounting plate (203) into the end mold (110).

6. The fiberglass pipe winding molding die according to claim 3, characterized in that, The inner wall of the baffle (200) is provided with a protective pad (205), and the protective pad (205) is made of rubber.