Non-standard glass fiber reinforced plastic storage tank lining mold

By covering the outer wall of the cantilever mold with thickened plates and adhesive tape, the problem of mold specification limitations for FRP storage tanks was solved, enabling efficient production of non-standard storage tank liners and reducing cost and quality risks.

CN224528074UActive Publication Date: 2026-07-21HEBEI WEITONG FRP CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI WEITONG FRP CO LTD
Filing Date
2025-07-15
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The existing FRP (fiberglass reinforced plastic) storage tank molds are mostly available in even-numbered specifications, which makes it difficult to meet the requirements of odd-numbered specifications. This results in high production costs and potential quality risks for non-standard storage tanks.

Method used

Thickened plates and adhesive tape are used to cover the outer wall of the cantilever mold. The outer diameter of the mold is increased by thickening the plates and pressure plate assemblies to meet the requirements of non-standard inner diameter. Multiple staggered joints are used to avoid axial continuous lines.

Benefits of technology

It enables the complete production of non-standard storage tank liners, reduces manual labor, lowers costs and reduces potential quality risks, has strong applicability, and is easy to process.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224528074U_ABST
    Figure CN224528074U_ABST
Patent Text Reader

Abstract

The utility model belongs to the technical field of glass steel storage tank production equipment, disclose a kind of non-standard glass steel storage tank lining mould, including drive host computer and cantilever mould, still including thickening plate and adhesive tape, the outer diameter specification of cantilever mould is close to and less than the inner diameter of the non-standard glass steel storage tank lining needing processing, the thickening plate whole circle is covered on the outer wall of cantilever mould, and the joint of thickening plate is connected using adhesive tape;The outer diameter of cantilever mould plus the thickness of two thickening plates is equal to the inner diameter of the non-standard glass steel storage tank lining.The utility model non-standard glass steel storage tank lining mould, can produce complete non-standard storage tank lining, reduce manual operation, also save cost, reduce quality hidden danger.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technical field of fiberglass storage tank production equipment, and in particular to a non-standard fiberglass storage tank lining mold. Background Technology

[0002] Fiberglass reinforced plastic (FRP) storage tanks, as an excellent corrosion-resistant material, are widely used in various industries. However, the specifications of the tanks produced are limited by the corresponding cantilever mold specifications. Currently, most FRP mold specifications are even-numbered, such as the diameter specifications of conventional FRP storage tanks, which are DN1600, DN1800, DN2000, etc. For storage tank specifications that customers require odd-numbered sizes and cannot be adjusted, the tank liner must first be made on an even-numbered mold of similar size. After demolding, the liner is cut to the required size, and after a series of processes such as grinding, splicing, and bonding, it is assembled with the tank head and bottom.

[0003] Therefore, this complex process generates substantial material and labor costs, resulting in high production costs for non-standard storage tanks. Furthermore, the spliced ​​tank lining increases the risk of material leakage at the seams, posing potential quality hazards.

[0004] Therefore, it is necessary to develop a non-standard fiberglass storage tank lining mold to address the aforementioned defects. Utility Model Content

[0005] The purpose of this utility model is to provide a non-standard fiberglass storage tank liner mold that can produce complete non-standard storage tank liners, reducing manual labor, saving costs, and reducing potential quality risks.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] This utility model relates to a non-standard fiberglass storage tank liner mold, comprising a drive unit and a cantilever mold, as well as thickening plates and adhesive tape. The outer diameter of the cantilever mold is close to but smaller than the inner diameter of the non-standard fiberglass storage tank liner to be processed. The thickening plates completely cover the outer wall of the cantilever mold, and the joints of the thickening plates are connected using the adhesive tape. The outer diameter of the cantilever mold plus the thickness of two thickening plates equals the inner diameter of the non-standard fiberglass storage tank liner.

[0008] Furthermore, there are multiple thickened plates, which are placed side by side along the axial direction of the cantilever mold, and the multiple seams are staggered.

[0009] Furthermore, it also includes a pressure plate assembly, which can temporarily press the end of the thickened plate against the outer wall of the cantilever mold.

[0010] Furthermore, the pressure plate assembly includes a pressure plate and a long screw. A threaded hole is provided on the outer wall of the cantilever mold. The long screw passes through the through hole of the pressure plate and the thickened plate and is threaded into the threaded hole.

[0011] Furthermore, the pressure plate is a long strip of plate with a U-shaped cross-section. The pressure plate is set parallel to the end of the thickened plate. The head of the long screw's internal hex bolt is pressed against the inner bottom surface of the pressure plate, and the bottom surface of the pressure plate is pressed against the outer wall of the thickened plate.

[0012] Furthermore, when not in use, a plug is installed inside the threaded hole.

[0013] Furthermore, the thickness of the thickened plate can be varied.

[0014] Furthermore, the thickened board is specifically made of EPE pearl cotton board.

[0015] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0016] This utility model relates to a non-standard fiberglass storage tank liner mold. By covering the outer wall of the cantilever mold with a thickened plate, the outer diameter of the mold is increased, thus meeting the inner diameter requirements of non-standard fiberglass storage tank liners. The lightweight adhesive tape ends are connected via adhesive tape, making the process easy and cost-effective. Although the structure is not complex, it solves a significant technical problem. This utility model of a non-standard fiberglass storage tank liner mold can produce complete non-standard storage tank liners, reducing manual labor, saving costs, and lowering potential quality risks.

[0017] Furthermore, by placing multiple thickened plates side-by-side along the axis of the cantilever mold, the height requirements of non-standard FRP tank linings can be flexibly met. By staggering the angular displacements of multiple joints, continuous axial lines on the inner wall of the non-standard FRP tank lining can be avoided. The thickness of the thickened plates can be flexibly customized to meet the manufacturing needs of various non-standard sizes, offering strong applicability. Using EPE pearl cotton sheets, the material is lightweight, easy to bend and cut, and easy to process and wrap onto the outer wall of the cantilever mold. The addition of the pressure plate assembly reliably presses the ends of the thickened plates against the outer wall of the cantilever mold, facilitating complete wrapping of the thickened plates. By creating through holes in the pressure plate and thickened plates and inserting long screws, not only does the pressure plate press against the outer wall of the thickened plates, but the long screws also prevent the thickened plates from slipping off. By setting the pressure plate as a long strip with a U-shaped cross-section, the pressing position is closer to the thickened plates, resulting in good stability. By equipping the threaded hole with a plug, the threaded hole can be effectively sealed to prevent resin from entering and hindering demolding. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the main view of the non-standard fiberglass storage tank lining mold of this utility model;

[0020] Figure 2 This is a front view schematic diagram of the non-standard fiberglass storage tank lining mold under manufacturing conditions according to this utility model.

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the present invention at the pressure plate.

[0022] Figure 4 for Figure 3 A magnified schematic diagram of the structure of part I in the middle.

[0023] Explanation of reference numerals in the attached drawings: 1. Drive unit; 2. Cantilever mold; 201. Central shaft cylinder; 3. Thickened plate; 301. Joint; 4. Adhesive tape; 5. Pressure plate; 6. Threaded hole; 7. Long screw. Detailed Implementation

[0024] The core of this utility model is to provide a non-standard fiberglass storage tank liner mold, which can produce complete non-standard storage tank liners, reducing manual labor, saving costs, and reducing potential quality risks.

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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.

[0027] In one specific implementation, such as Figure 1 and Figure 2As shown, the non-standard fiberglass tank liner mold of this utility model includes a drive unit 1 and a cantilever mold 2. Similar to existing technologies, the cantilever mold 2 is cylindrical and driven to rotate by the drive unit 1. A key innovation of this utility model compared to existing technologies is the inclusion of thickening plates 3 and adhesive tape 4. First, a cantilever mold 2 of suitable specifications is selected. From conventional even-sized cantilever molds 2, a size with an outer diameter close to but smaller than the inner diameter of the non-standard fiberglass tank liner to be processed is chosen. The thickening plate 3 completely covers the outer wall of the selected cantilever mold 2. The joints 301 of the thickening plate 3 are connected using adhesive tape 4, which is a disposable adhesive tape with high bonding strength. The length of the thickening plate 3 covering the liner should be greater than the height of the non-standard fiberglass tank liner. The outer diameter of the cantilever mold 2 plus the thickness of two thickening plates 3 equals the inner diameter of the non-standard fiberglass tank liner, satisfying the tolerance requirements of the design drawings.

[0028] The outer diameter of the mold is increased by covering the outer wall of the cantilever mold 2 with a thickened plate 3, thereby meeting the inner diameter requirements of non-standard fiberglass storage tank liners. The lightweight adhesive tape 4 is connected to the ends, which is convenient and cost-effective. Although the structure is not complex, it solves a significant technical problem. This utility model of a non-standard fiberglass storage tank liner mold can produce complete non-standard storage tank liners, reducing manual labor, saving costs, and lowering potential quality risks.

[0029] In one specific embodiment of this utility model, such as Figure 1 and Figure 2 As shown, there are multiple thickened plates 3, which are placed side by side along the axis of the cantilever mold 2, ensuring that the length of the covered part is greater than the height of the non-standard fiberglass storage tank lining. The angular displacements of the multiple joints 301 are staggered.

[0030] By placing multiple thickened plates 3 side by side along the axial direction of the cantilever mold 2, the height requirements of non-standard fiberglass tank linings can be flexibly met; by staggering the angular displacement of multiple joints 301, continuous axial lines can be avoided on the inner wall of the non-standard fiberglass tank lining.

[0031] In one specific embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the thickness of the thickened plate 3 is available in various sizes. The thickened plate 3 is a purchased component, and its thickness can be flexibly customized.

[0032] Specifically, such as Figure 1 and Figure 2 As shown, the thickened board 3 is made of EPE pearl cotton board, which has good toughness, can be bent, and has low density, so it will not increase the load too much.

[0033] By flexibly customizing the thickness of the thickened sheet 3, it can meet the production needs of various non-standard sizes and specifications, and has strong applicability; by using EPE pearl cotton sheet, it is lightweight, easy to bend and cut, and easy to process and wrap onto the outer wall of the cantilever mold 2.

[0034] In one specific embodiment of this utility model, such as Figures 2-4 As shown, the non-standard fiberglass storage tank lining mold of this utility model also includes a pressure plate assembly. During the covering operation, the pressure plate assembly can temporarily press the end of the thickened plate 3 against the outer wall of the cantilever mold 2.

[0035] By adding the pressure plate assembly, the end of the thickened plate 3 can be reliably pressed against the outer wall of the cantilever mold 2, which facilitates the complete wrapping of the thickened plate 3.

[0036] Specifically, such as Figures 2-4 As shown, the pressure plate assembly includes a pressure plate 5 and a long screw 7. A threaded hole 6 is provided on the outer wall of the cantilever mold 2. The long screw 7 passes through the through hole of the pressure plate 5 and the thickened plate 3 and is threaded to the threaded hole 6.

[0037] Specifically, such as Figures 2-4 As shown, the pressure plate 5 is a long strip of plate with a U-shaped cross-section. The pressure plate 5 is set parallel to the end of the thickened plate 3. The hexagonal head of the long screw 7 is pressed against the inner bottom surface of the pressure plate 5. A large shim is required to adjust the clamping force. The bottom surface of the pressure plate 5 is pressed against the outer wall of the thickened plate 3.

[0038] Obviously, the pressure plate 5 can also be made of channel steel or square tube, which can also play a similar pressing role. Such simple replacement methods all fall within the protection scope of this utility model.

[0039] By creating through holes in the pressure plate 5 and the thickened plate 3 and inserting long screws 7, not only does the pressure plate 5 press against the outer wall of the thickened plate 3, but the long screws 7 also prevent the thickened plate 3 from detaching. By setting the pressure plate 5 as a long strip with a U-shaped cross-section, the pressing position is closer to the thickened plate 3, resulting in good stability.

[0040] Specifically, such as Figures 2-4 As shown, when not in use, a plug is installed in threaded hole 6. That is to say, when not producing non-standard FRP tank liners, but when used as a standard-sized mold, the plug seals the threaded hole 6 to prevent resin from entering.

[0041] By equipping the threaded hole 6 with a plug, the threaded hole 6 can be effectively sealed to prevent resin from entering and hindering demolding.

[0042] The working principle of this utility model of non-standard FRP storage tank lining mold is as follows: Select a cantilever mold 2 that is smaller than but closest to the required specifications of the non-standard FRP storage tank lining. First, install the cantilever mold 2 on the cantilever central shaft 201 of the drive host 1 for lining. Experience shows that the specifications of the cantilever mold 2 are generally about 100mm smaller than the required specifications. Based on the principle that the outer diameter of the cantilever mold 2 plus the thickness of the two thickening plates 3 equals the inner diameter of the non-standard FRP storage tank lining, calculate the thickness of the thickening plates 3. Select a thickening plate 3 of this thickness, flush with its end, and drill a through hole for the long screw 7 to pass through at the end of the thickening plate 3. Use a pressure plate 5 to install the long screw 7, pressing the end of the thickening plate 3 onto the outer wall of the cantilever mold 2. Rotate the cantilever mold 2 to wrap the thickening plate 3 around the outer wall of the cantilever mold 2, and use a utility knife to cut the thickening plate 3. Use adhesive tape 4 to bond the two ends of the joint 301, using at least three layers of adhesive tape 4 to complete the fixation of the thickening plate 3. Remove the pressure plate 5 and long screw 7, and prepare to cover another ring of thickened plate 3 side by side. Repeat the above steps until the height and dimension requirements of the non-standard fiberglass tank lining are met.

[0043] The dimensions of the newly modified mold are inspected and accepted. The circumference of the mold is measured using a steel tape measure to calculate its outer diameter. Measurements are taken at at least five different locations on the mold, and the average value is taken as the outer diameter of the new mold. The outer diameter error of this mold must meet the standard error requirements for the diameter of the non-standard fiberglass storage tank lining as specified by the customer; otherwise, a new material thickness must be selected for modification.

[0044] After the mold modification is qualified, the lining equipment is started to drive the main unit 1, the cantilever mold 2 rotates, and the modified thickened plate 3 is wrapped with polyester film for lining. Then, the normal production process of the fiberglass tank lining is followed: making the tank lining - demolding after the lining is cured - entering the tank assembly stage - winding the cylinder - installing accessories.

[0045] It should be noted that the process disclosed in this utility model is also applicable to the preparation of non-standard pipe products.

[0046] In summary, this utility model of a non-standard fiberglass tank liner mold increases the outer diameter of the mold by covering the outer wall of the cantilever mold 2 with thickened plates 3, thereby meeting the inner diameter requirements of non-standard fiberglass tank liner specifications. The lightweight adhesive tape 4 is connected to the ends, making the process easy and cost-effective. Although the structure is not complex, it solves a significant technical problem. This utility model of a non-standard fiberglass tank liner mold can produce complete non-standard tank liners, reducing manual labor, saving costs, and lowering quality risks. Furthermore, by placing multiple thickened plates 3 side-by-side along the axis of the cantilever mold 2, the height requirements of non-standard fiberglass tank liners can be flexibly met; and by staggering the angular displacement of multiple seams 301, continuous axial lines can be avoided on the inner wall of the non-standard fiberglass tank liner. By flexibly customizing the thickness of the thickened sheet 3, it can meet the manufacturing needs of various non-standard sizes and specifications, making it highly applicable. Using EPE pearl cotton sheet, it is lightweight, easy to bend and cut, and easy to process and wrap onto the outer wall of the cantilever mold 2. By adding the pressure plate assembly, the ends of the thickened sheet 3 can be reliably pressed against the outer wall of the cantilever mold 2, facilitating the complete wrapping of the thickened sheet 3. By creating through holes in the pressure plate 5 and the thickened sheet 3 and inserting long screws 7, not only does the pressure plate 5 press against the outer wall of the thickened sheet 3, but the long screws 7 also prevent the thickened sheet 3 from detaching. By setting the pressure plate 5 as a long strip with a U-shaped cross-section, the pressing position is closer to the thickened sheet 3, resulting in good stability. By equipping the threaded hole 6 with a plug, the threaded hole 6 can be effectively sealed, preventing resin from entering and hindering demolding.

[0047] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0048] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A non-standard fiberglass storage tank lining mold, comprising a drive unit (1) and a cantilever mold (2), characterized in that, It also includes thickening plates (3) and adhesive tape (4). The outer diameter of the cantilever mold (2) is close to and smaller than the inner diameter of the non-standard fiberglass tank liner to be processed. The thickening plates (3) are wrapped around the outer wall of the cantilever mold (2). The joints (301) of the thickening plates (3) are connected by the adhesive tape (4). The outer diameter of the cantilever mold (2) plus the thickness of two thickening plates (3) is equal to the inner diameter of the non-standard fiberglass tank liner.

2. The non-standard fiberglass storage tank lining mold according to claim 1, characterized in that, The number of the thickened plates (3) is multiple, and the multiple thickened plates (3) are placed side by side along the axial direction of the cantilever mold (2), and the multiple seams (301) are staggered.

3. The non-standard fiberglass storage tank lining mold according to claim 1 or 2, characterized in that, It also includes a pressure plate assembly that can temporarily press the end of the thickened plate (3) against the outer wall of the cantilever mold (2).

4. The non-standard fiberglass storage tank lining mold according to claim 3, characterized in that, The pressure plate assembly includes a pressure plate (5) and a long screw (7). A threaded hole (6) is provided on the outer wall of the cantilever mold (2). The long screw (7) passes through the through hole of the pressure plate (5) and the thickened plate (3) and is threaded to the threaded hole (6).

5. The non-standard fiberglass storage tank lining mold according to claim 4, characterized in that, The pressure plate (5) is a long strip plate with a U-shaped cross-section. The pressure plate (5) is set parallel to the end of the thickened plate (3). The hexagonal head of the long screw (7) is pressed against the inner bottom surface of the pressure plate (5). The bottom surface of the pressure plate (5) is pressed against the outer wall of the thickened plate (3).

6. The non-standard fiberglass storage tank lining mold according to claim 4 or 5, characterized in that, When not in use, a plug is installed in the threaded hole (6).

7. The non-standard fiberglass storage tank lining mold according to claim 1, characterized in that, The thickness of the thickened plate (3) is varied.

8. The non-standard fiberglass storage tank lining mold according to claim 7, characterized in that, The thickened board (3) is specifically made of EPE pearl cotton board.