Diversion net composite isolating membrane
By setting up a transverse guide line with a diversion groove and a gradually larger diversion line segment in the diversion network composite isolation film, the problems of bubble enrichment and resin retention in the diversion network composite isolation film are solved, and more efficient resin circulation and product performance improvement are achieved.
Patent Information
- Application Number
- CN202421679890.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-16
AI Technical Summary
The existing conduit net composite isolation film has bubble-enriched residues at the edges, which easily retains more resins, which have poor fluidity and affects product performance.
A composite isolation film of the flow guide network is designed, and a transverse flow guide line is arranged on the cross-flow guide network with a first flow guide groove and a second flow guide groove. The diameter of the flow guide line segment gradually increases from the intermediate point to the intersection point to promote resin circulation and avoid residue.
It improves the flow rate and stability of the resin, avoids resin residue and bubble retention, and improves product performance.
Smart Images
Figure CN222875372U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of guide nets, in particular to a guide net composite isolation membrane. Background Art
[0002] The wind turbine blade is made of PS face shell, SS face shell and web which are molded and bonded with mold glue. The web is a sandwich structure, that is, the middle of the web is foam core material, and the upper and lower surfaces are covered with fiberglass skins. The current mainstream molding process for the web is vacuum infusion. After the main structural layer of the web is laid, auxiliary materials are laid. Auxiliary materials include demoulding cloth, isolation film, guide net, vacuum bag film and other auxiliary materials, and the guide net composite isolation membrane is a composite of guide net and composite isolation membrane.
[0003] The guide net in the existing guide net composite isolation membrane is composed of a mesh of cross guide lines. In the actual implementation process, due to the presence of bubbles when the resin is mixed and other processes are performed during the resin infusion, the composite material product has bubble enrichment residues at the edge of the guide net. At the same time, it is easy to retain more resin, resulting in poor fluidity, which affects product performance.
[0004] Therefore, it is particularly important to design a guide net composite isolation membrane to solve the above-mentioned defects. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the utility model designs a guide net composite isolation membrane, which aims to solve the problems of bubble enrichment and residue at the edge of the guide net composite isolation membrane in the existing technology, and the problem that a large amount of resin is easily retained and the fluidity is poor, which affects the technical problems of product performance.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A guide net composite isolation membrane comprises a cross guide net, wherein the cross guide net is composed of multiple groups of parallel warp guide lines and weft guide lines, and the multiple groups of warp guide lines and weft guide lines are interwoven to form a mesh structure, multiple groups of transverse guide lines are arranged in parallel on the cross guide net, and an isolation membrane body is arranged on the top of the multiple groups of transverse guide lines.
[0008] As a preferred solution of the utility model, the lower surface of the cross-guiding net is coated with flame-retardant adhesive, and the lower surface of the flame-retardant adhesive is bonded with a porous isolation membrane.
[0009] As a preferred solution of the utility model, the porous isolation membrane is a PP membrane.
[0010] As a preferred solution of the utility model, intersections are provided at the connections of multiple groups of the warp guides and the weft guides, the diameters of the warp guides and the weft guides are the same, and the diameter of any guide line segment between adjacent intersections gradually increases from the midpoint of the segment to the corresponding intersection.
[0011] As a preferred solution of the utility model, the warp flow guides and the weft flow guides are arranged perpendicularly.
[0012] As a preferred solution of the utility model, the warp flow guide wires are made of polyethylene material, and the weft flow guide wires are polyester fiber wires.
[0013] As a preferred solution of the utility model, the transverse guide line includes a column guide line, a first guide groove, a second guide groove and a partition plate, and the first guide groove and the second guide groove are symmetrically distributed on the column guide line, and the partition plate is located between the first guide groove and the second guide groove.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] The utility model is designed so that, during paving, one side of the transverse guide line with the first guide groove and the second guide groove is laid flat as the bottom surface. When resin is poured in, the resin passes through the first guide groove and the second guide groove until the entire cross guide network is filled. Due to the arrangement of the first guide groove and the second guide groove, the circulation of the resin can be accelerated, while avoiding the resin remaining in the cross guide network, which is beneficial to the discharge of bubbles. At the same time, the diameter of the guide line segment between adjacent intersections in the cross guide network changes, that is, from the middle point of the guide line segment to the corresponding intersection, the diameter of the guide line segment gradually increases. Therefore, according to physical principles, the resin will flow from the larger diameter end of the guide line segment to the smaller diameter end, and its diversion speed is accelerated and stable, which can avoid the resin residue and is beneficial to the discharge of bubbles. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the cross-guiding network of the utility model;
[0018] Figure 3 This is a schematic diagram of the intersection structure of the utility model;
[0019] Figure 4 This is a schematic diagram of the structure of the transverse guide line of the utility model.
[0020] In the figure: 1, cross guide net; 101, flame retardant glue; 102, porous isolation membrane; 2, warp guide line; 201, intersection; 3, weft guide line; 4, transverse guide line; 401, column guide line; 402, first guide groove; 403, second guide groove; 404, partition plate; 5, isolation membrane body. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0022] Example:
[0023] See also Figure 1-Figure 4 , the utility model provides a technical solution:
[0024] A guide net composite isolation membrane comprises a cross guide net 1, wherein the cross guide net 1 is composed of a plurality of parallel groups of warp guide lines 2 and weft guide lines 3, and the plurality of groups of warp guide lines 2 and weft guide lines 3 are interwoven to form a mesh structure, a plurality of parallel groups of transverse guide lines 4 are arranged on the cross guide net 1, and an isolation membrane body 5 is arranged on the top of the plurality of groups of transverse guide lines 4.
[0025] First, the lower surface of the cross-guiding net 1 is coated with flame-retardant glue 101, which improves the flame-retardant performance of the cross-guiding net 1. The lower surface of the flame-retardant glue 101 is bonded with a porous isolation membrane 102, which is a PP film, which facilitates the laying of the cross-guiding net 1 and saves installation time.
[0026] Then, intersections 201 are provided at the connection points of multiple groups of warp flow guides 2 and weft flow guides 3. The diameters of the warp flow guides 2 and the weft flow guides 3 are the same, and the diameter of any flow guide segment between adjacent intersections 201 gradually increases from the midpoint of the segment to the corresponding intersection 201. The warp flow guides 2 and the weft flow guides 3 are vertically arranged, and the diameters of the flow guide segments between adjacent intersections 201 in the cross flow guide network 1 change, that is, from the midpoint of the flow guide segment to the corresponding intersection 201, the diameter of the flow guide segment gradually increases. Therefore, according to physical principles, the resin will flow from the larger diameter end of the flow guide segment to the smaller diameter end, and its flow guide speed will be accelerated and stable.
[0027] Secondly, the warp guide wires 2 are made of polyethylene material, and the weft guide wires 3 are polyester fiber wires. Polyethylene has excellent chemical stability and acid and alkali resistance, making the cross guide net 1 not easily corroded. Polyester fiber has high strength and elastic recovery ability, making the cross guide net 1 not easily deformed.
[0028] Finally, the transverse guide line 4 includes a column guide line 401, a first guide groove 402, a second guide groove 403 and a partition plate 404, and the first guide groove 402 and the second guide groove 403 are symmetrically distributed on the column guide line 401, and the partition plate 404 is located between the first guide groove 402 and the second guide groove 403. When paving, the side of the transverse guide line 4 with the first guide groove 402 and the second guide groove 403 is laid flat as the bottom surface. When pouring resin, the resin will pass through the first guide groove 402 and the second guide groove 403 until the entire cross guide network 1 is filled. Due to the setting of the first guide groove 402 and the second guide groove 403, the circulation of resin can be accelerated, while avoiding residue in the cross guide network 1, and at the same time facilitating the discharge of bubbles.
[0029] In this embodiment, the implementation scenario is specifically as follows: during paving, the side of the transverse guide line 4 with the first guide groove 402 and the second guide groove 403 is laid flat on the bottom surface. When the resin is poured in, the resin will pass through the first guide groove 402 and the second guide groove 403 until the entire cross guide net 1 is filled. Due to the arrangement of the first guide groove 402 and the second guide groove 403, the circulation of the resin can be accelerated, and at the same time, it is avoided that the resin remains in the cross guide net 1, which is conducive to the discharge of bubbles. At the same time, the adjacent intersections 2 in the cross guide net 1 01, the diameter of the guide line segment changes, that is, from the middle point of the guide line segment to the corresponding intersection 201, the diameter of the guide line segment gradually increases. Therefore, according to physical principles, the resin will flow from the larger diameter end of the guide line segment to the smaller diameter end, and its diversion speed is accelerated and stable. The whole operation process is simple and convenient. Compared with the existing guide net composite isolation membrane, the utility model can improve the overall diversion speed and stability of the guide net composite isolation membrane through design, can avoid resin residue, and is conducive to the discharge of bubbles.
[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A guide net composite isolation membrane, comprising a cross guide net (1), characterized in that: The cross-guiding net (1) is composed of a plurality of parallel groups of longitudinal guide lines (2) and latitudinal guide lines (3), and the plurality of groups of longitudinal guide lines (2) and latitudinal guide lines (3) are interwoven to form a mesh structure. The cross-guiding net (1) is provided with a plurality of parallel groups of transverse guide lines (4), and an isolation membrane body (5) is provided on the top of the plurality of groups of transverse guide lines (4).
2. The composite isolation membrane of the guide net according to claim 1, characterized in that: The lower surface of the cross-guiding net (1) is coated with a flame-retardant adhesive (101), and the lower surface of the flame-retardant adhesive (101) is bonded with a porous isolation membrane (102).
3. The composite isolation membrane of the guide net according to claim 2, characterized in that: The porous isolation membrane (102) is a PP membrane.
4. The composite isolation membrane of the guide net according to claim 1, characterized in that: A crossover point (201) is provided at the connection point of the plurality of groups of the warp flow guides (2) and the weft flow guides (3); the diameters of the warp flow guides (2) and the weft flow guides (3) are the same, and the diameter of any flow guide line segment between adjacent crossover points (201) gradually increases from the middle point of the line segment to the corresponding crossover point (201).
5. The composite isolation membrane of the guide net according to claim 1, characterized in that: The warp flow guide lines (2) and the weft flow guide lines (3) are arranged perpendicularly.
6. The composite isolation membrane of the guide net according to claim 1, characterized in that: The warp flow guide wire (2) is made of polyethylene material, and the weft flow guide wire (3) is a polyester fiber wire.
7. The composite isolation membrane of the guide net according to claim 1, characterized in that: The transverse flow guide line (4) comprises a column flow guide line (401), a first flow guide groove (402), a second flow guide groove (403) and a partition plate (404), wherein the first flow guide groove (402) and the second flow guide groove (403) are symmetrically distributed on the column flow guide line (401), and the partition plate (404) is located between the first flow guide groove (402) and the second flow guide groove (403).