Anti-lock runner structure
By adopting an anti-lock runner structure in large composite structural parts and utilizing a combined design of a guide net and an air extraction bag, the problem of uneven resin flow is solved, achieving uniform resin flow and improving the mechanical properties of the cast parts.
Patent Information
- Application Number
- CN202422854253.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-22
AI Technical Summary
During the vacuum infusion process of large composite structural parts, the uneven resin flow leads to slow flow velocity under the beam, which easily causes poor infiltration and local flow stagnation, affecting the mechanical properties and molding quality of the infused parts.
An anti-lock runner structure is adopted, including a front guide net, a rear guide net and a guide net lap piece, which are equipped with vacuum bags and arranged around the beam to ensure the uniformity of resin flow. The split setting of the guide net and the acceleration effect of the vacuum bags can prevent the resin from flowing too slowly under the beam.
The uniformity of resin flow is achieved, the situation where the resin flows too slowly below the beam and too quickly above it is avoided, the resin is prevented from locking, and the mechanical properties and molding quality of the cast parts are improved.
Smart Images
Figure CN223370160U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of composite material manufacturing, in particular to an anti-lock flow channel structure. Background Art
[0002] During the vacuum infusion process of large composite structural parts, extra-wide beams are positioned within the flow channel, integrally molded with the infused part to reinforce the structure. However, during infusion, resin flow near the beam can experience flow velocity differences. Especially below the beam, the slower resin flow can easily lead to poor infiltration and localized flow stagnation, a phenomenon known as "locking," which in turn affects the mechanical properties and molding quality of the infused part.
[0003] The existing anti-lock measures are to increase the resin supply or enhance the vacuum suction inside the flow channel. However, for large-sized beams, the uniformity of resin flow cannot be guaranteed, especially the resin flow retention in the lower area cannot be effectively improved. Utility Model Content
[0004] The purpose of the utility model is to provide an anti-locking flow channel structure, which can prevent the resin from locking during the flow process.
[0005] To achieve this purpose, the present invention adopts the following technical solutions:
[0006] The anti-lock runner structure is arranged around the pre-buried beam of the large-surface shell. After the resin solidifies, the beam is embedded in the molded part. The anti-lock runner structure includes:
[0007] A front guide net is provided at the upper front portion of the beam;
[0008] The rear guide net is arranged at the upper rear part of the beam, and a guide net lap joint is provided between the front guide net and the rear guide net, and the guide net lap joint is arranged along the length direction of the beam.
[0009] Preferably, in the width direction of the beam, one side at the front is the glue injection side, and the other side at the rear is the diversion side.
[0010] Preferably, both the front guide net and the rear guide net extend along the length direction of the beam.
[0011] Preferably, the front guide net is 150-200 mm away from the guide side.
[0012] Preferably, the rear guide net is 50-100 mm away from the guide side.
[0013] Preferably, it also includes air suction bags, which are arranged at both ends of the beam in the length direction.
[0014] Preferably, the air pumping bag is only provided above the beam.
[0015] Preferably, the distance between two adjacent guide net joints is in the range of 450 mm to 500 mm.
[0016] Beneficial effects of the utility model:
[0017] The front guide net and the rear guide net cooperate with each other to realize the split setting of the guide net, which slows down the flow rate of liquid resin above the beam during the infusion process; the setting of the guide net joints ensures that the resin above the beam does not stagnate; the setting of the vacuum bag accelerates the flow rate of the resin below the beam; so that the resin pressure on the upper and lower sides of the beam are basically consistent, the flow rate is basically consistent, and the resin flow in different areas is more uniform; avoid the situation where the resin flow rate below the beam is too slow and the resin flow rate above is too fast; avoid the occurrence of resin locking under the beam.
[0018] BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 It is a top view of the anti-lock runner structure of the utility model.
[0019] In the picture:
[0020] 10. Main beam; 101. Glue injection side; 102. Diversion side;
[0021] 1. Front guide net;
[0022] 2. Rear guide net;
[0023] 3. Diversion net joints;
[0024] 4. Vacuum bag. DETAILED DESCRIPTION
[0025] The following describes in detail embodiments of the present invention. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.
[0026] In the description of this utility model, unless otherwise expressly specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed or detachable connections, mechanical or electrical connections, direct or indirect connections through an intermediate medium, and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0027] In the description of the present utility model, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.
[0028] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.
[0029] like Figure 1 As shown, the utility model provides an anti-lock flow channel structure for vacuum infusion of large composite structural parts. The anti-lock flow channel structure is arranged around the large-surface shell embedded beam 10. It includes a front guide net 1, a rear guide net 2, a guide net lap joint 3 and an air extraction bag 4. Among them, the front guide net 1 is arranged at the front part above the beam, and the rear guide net 2 is arranged at the rear part above the beam; a guide net lap joint 3 is arranged between the front guide net 1 and the rear guide net 2, and the guide net lap joint 3 is arranged along the length direction of the beam 10;
[0030] The front guide net 1 and the rear guide net 2 cooperate with each other to realize the split setting of the guide net, which slows down the flow rate of the liquid resin above the beam during the infusion process; the setting of the guide net lap part 3 ensures that the resin above the beam does not stagnate;
[0031] Specifically, the beam 10 has a glue injection side 101 on one side and a flow guide side 102 on the other side in its width direction. With the above arrangement, liquid resin is injected from the glue injection side 101 and flows up and down the beam to the flow guide side 102 simultaneously.
[0032] More specifically, both the front guide net 1 and the rear guide net 2 extend along the length of the beam 10, and the width of the front guide net 1 is greater than the width of the rear guide net 2. The above arrangement can improve the uniformity of the resin along the length of the beam 10.
[0033] For example, in this embodiment, the distance between the front guide net 1 and the guide side 102 is 150-200 mm. In other embodiments, the distance between the front guide net 1 and the guide side 102 can be adjusted according to actual needs and is not specifically limited here.
[0034] For example, in this embodiment, the distance between the rear guide net 2 and the guide side 102 is 50-100 mm. In other embodiments, the distance between the rear guide net 2 and the guide side 102 can be adjusted according to actual needs and is not specifically limited here.
[0035] Air extraction bags 4 are provided at both ends of the girder 10 in the longitudinal direction. This ensures that the resin pressure and flow rate on the upper and lower sides of the girder are basically consistent, and the resin flow in different areas is more uniform. This prevents the resin flow rate below the girder 10 from being too slow and the resin flow rate above it from being too fast, and prevents the resin from locking below the girder 10.
[0036] Preferably, in this embodiment, the vacuum bag 4 is configured as a VAP vacuum bag commonly used in the art, and its specific structure and principle are not described here in detail.
[0037] For example, in this embodiment, the distance between two adjacent guide net bridging members 3 is between 450 mm and 500 mm. In other embodiments, the distance between the guide net bridging members 3 can also be adjusted according to actual needs, and is not specifically limited here.
[0038] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.
Claims
1. An anti-lock runner structure is provided around a beam (10) embedded in a large shell body, and after the resin solidifies, the beam (10) is embedded in the molded part, characterized in that: The anti-lock runner structure includes: A front guide net (1) is arranged at the upper front portion of the beam (10); A rear guide net (2) is arranged at the upper rear portion of the beam (10), and a guide net lap joint (3) is provided between the front guide net (1) and the rear guide net (2), wherein the guide net lap joint (3) is arranged along the length direction of the beam.
2. The anti-lock runner structure according to claim 1, characterized in that: In the width direction of the beam (10), one side of the front portion is a glue injection side (101), and the other side of the rear portion is a flow guide side (102).
3. The anti-lock runner structure according to claim 2, characterized in that: Both the front guide net (1) and the rear guide net (2) extend along the length direction of the beam (10).
4. The anti-lock runner structure according to claim 2, characterized in that: The front guide net (1) is 150-200 mm away from the guide side (102).
5. The anti-lock runner structure according to claim 2, characterized in that: The rear guide net (2) is 50-100 mm away from the guide side (102).
6. The anti-lock runner structure according to claim 1, characterized in that: It also includes air pumping bags (4), which are arranged at both ends of the beam in the length direction.
7. The anti-lock runner structure according to claim 6, characterized in that: The air pumping bag (4) is only provided on the upper portion of the beam (10).
8. The anti-lock runner structure according to any one of claims 1 to 7, characterized in that: The distance between two adjacent guide net connecting pieces (3) ranges from 450 mm to 500 mm.