CFLVV cover plate mold
By rationally designing the cavity and using replaceable inserts in the CFLAV cover plate mold, the problem of traditional molds being unable to switch flexibly has been solved, enabling efficient production of products of various specifications, reducing mold opening costs and extending mold life.
Patent Information
- Application Number
- CN202520145281.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-22
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-22
AI Technical Summary
Traditional molds cannot flexibly switch between different products, resulting in high mold opening costs, low production efficiency and short lifespan, making it difficult to meet the requirements of diversified production and rapid iteration.
A CFLAV cover plate mold is designed, employing a reasonable cavity structure and replaceable inserts. The mold allows for rapid switching between different products through the through-slot connection of the first and second cavities. Combined with standardized modular design and high-strength materials, the mold's flexibility and wear resistance are improved.
It significantly reduces the mold development cost for multi-specification products, improves production efficiency and mold lifespan, and meets the flexibility and high efficiency requirements of diversified production.
Smart Images

Figure CN223777565U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mold technology, specifically relating to a CFLAV cover plate mold. Background Technology
[0002] With the acceleration of industrialization and the increasing market demand for diversified products, mold technology plays an indispensable role in modern manufacturing. In industries such as automobiles, electronics, and home appliances, the production of many components requires molds. CLVV covers, a combination valve in fuel tank venting systems, are experiencing increasing demand and variety year by year. In the automotive industry, meeting environmental and emission regulations, the multifunctionality and efficiency of CLVVs are of great value in reducing production costs and improving production efficiency. However, due to the differences in specifications and shapes among various products, traditional molds often require separate mold making for each specification. This not only increases production costs but also extends product development cycles, making it difficult to meet market demands for rapid delivery.
[0003] Existing mold technology suffers from several problems: First, there is a contradiction between diversified production needs and the singular nature of traditional molds. Traditional molds are typically limited to the production of a single product, unable to flexibly switch between different products, resulting in high mold-making costs. Second, the design and manufacturing cycle of molds is relatively long, making the development efficiency of traditional molds slow for new products requiring rapid iteration. Third, traditional molds are susceptible to wear and tear during use, resulting in a short lifespan. Frequent mold replacements, in particular, easily lead to resource waste and decreased production efficiency.
[0004] To address these issues, several multi-functional and modular mold designs have emerged in recent years. However, existing technologies largely focus on optimizing specific functions, failing to effectively integrate the needs of multi-specification production. For example, some molds achieve specification adjustments by changing cavities, but their complex structures and time-consuming installations hinder the high-efficiency requirements of actual production. Furthermore, these technologies still have significant room for improvement in cavity switching and precision control. Therefore, developing a mold capable of rapid switching between multiple products, while also possessing high precision, high efficiency, and low cost, has become a pressing technical challenge for the industry. Utility Model Content
[0005] To address the aforementioned issues, this utility model provides a CFLAV cover plate mold. Through innovative mold design, it solves the problems of high mold opening costs and low production efficiency in the production of multi-specification cover plates, thereby saving costs while improving production flexibility and product quality.
[0006] The technical solution provided by this utility model is as follows:
[0007] A CFLAV cover plate mold includes an upper mold base, a lower mold base, an upper template, a lower template, an ejector plate, and a support plate disposed on the lower mold base for supporting the lower template. An upper mold core is fixed inside the upper template, and a lower mold core that cooperates with the upper mold core is fixed inside the lower template.
[0008] The lower mold core is provided with several sets of cavities for molding products. Each set of cavities includes a first cavity and a second cavity. A first through groove is provided between the first cavity and the second cavity. A first insert or a second insert can be selectively inserted into the first through groove.
[0009] The first insert is used to separate the first cavity and the second cavity, and the second insert is used to connect the first cavity and the second cavity.
[0010] In some embodiments, a second through groove is provided on the upper mold core, which is opposite to the first through groove. A third insert is inserted into the second through groove. The third insert fits with the first insert to separate the first cavity and the second cavity. The third insert is separated from the second insert to connect the first cavity and the second cavity.
[0011] In some embodiments, the first insert and the second insert have a protrusion at the end away from the cavity, and the end face of the lower mold core has a groove that mates with the protrusion.
[0012] In some embodiments, the mold cavity is provided in four groups, arranged in a grid pattern on the lower mold core.
[0013] In some embodiments, both the first cavity and the second cavity are disk-shaped, and the diameter of the first cavity is larger than the diameter of the second cavity.
[0014] In summary, the beneficial effects of this utility model are as follows:
[0015] On the one hand, through a reasonable cavity design and replaceable insert structure, the mold can be compatible with the production of different types of cover plates, significantly reducing the mold development cost for multi-specification products; on the other hand, the mold adopts a standardized modular design, making insert replacement convenient, reducing production preparation time, and further improving production efficiency. Attached Figure Description
[0016] Figure 1 This is a three-dimensional cross-sectional structural diagram of the present invention;
[0017] Figure 2 This is a schematic diagram of the lower mold core structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the upper mold core structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the insert structure of this utility model;
[0020] Figure 5 This is a schematic diagram of the cover plate structure of this utility model.
[0021] The attached figures are labeled as follows:
[0022] 1. Upper mold base; 2. Lower mold base; 3. Upper template; 4. Lower template; 5. Ejector plate; 6. Support plate; 7. Upper mold core; 8. Lower mold core; 9. First cavity; 10. Second cavity; 11. First through slot; 12. First insert; 13. Second insert; 14. Second through slot; 15. Third insert; 16. Cover plate; 17. Protrusion. Detailed Implementation
[0023] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.
[0024] like Figure 1-5 As shown, this application provides a CFLAV cover plate mold. Its core purpose is to achieve interchangeable production of different types of cover plates 16 by rationally designing the cavity and the replaceable structure of the inserts, thereby effectively saving mold opening costs and improving production flexibility. The mold consists of an upper mold base 1, a lower mold base 2, an upper template 3, a lower template 4, an ejector plate 5, and a support plate 6, etc., and each part cooperates with each other to complete the forming process of the cover plate 16.
[0025] The upper mold base 1 is used to fix the upper template 3. The upper template 3 contains an upper mold core 7, which is one of the forming components of the mold and is responsible for forming the cavity together with the lower mold core 8. The lower mold base 2 is used to fix the lower template 4. The lower template 4 contains the lower mold core 8, which is designed to form a cavity for molding the CFLAV cover plate and related supporting structures. In this embodiment, the cavities are designed as four groups, arranged in a grid pattern on the surface of the lower mold core 8. Each group of cavities includes a first cavity 9 and a second cavity 10, which are connected by a first through groove 11. The diameter of the first cavity 9 is larger than that of the second cavity 10, which can meet the production needs of products of different specifications.
[0026] To achieve the separation or connection of cavities, a first insert 12 or a second insert 13 is designed within the first through groove 11. The first insert 12 separates the first cavity 9 from the second cavity 10, allowing for the independent molding of a single cover plate 16. The second insert 13 connects the first cavity 9 and the second cavity 10, enabling the production of two connected cover plates 16. Similarly, the upper mold core 7 has a second through groove 14 corresponding to the first through groove 11. By inserting a third insert 15 into the second through groove 14, working in conjunction with the insert in the first through groove 11, the separation or connection of cavities is further ensured. Specifically, when the first insert 12 and the third insert 15 are fitted together, they separate the first cavity 9 from the second cavity 10, allowing for the independent molding of a single cover plate 16. The third insert 15, separate from the second insert 13, connects the first cavity 9 and the second cavity 10, thus enabling the molding of two connected cover plates 16.
[0027] To ensure the stability of the inserts during installation, the ends of the first insert 12 and the second insert 13 furthest from the cavity are designed with protrusions 17, which mate with the grooves of the lower mold core 8 to provide positioning and fixation. This design not only improves the stability of the mold but also makes insert replacement more convenient and quick. Of course, the third insert 15 and the upper mold core 7 can also use a similar mating method. Furthermore, the contact surfaces between the inserts and the cavity undergo special processing to effectively reduce wear during production and extend the mold's service life.
[0028] The mold's working process mainly includes the following steps: First, select appropriate inserts according to production needs and insert them into the first through slot 11 and the second through slot 14, and adjust the mold's closed position; second, inject raw materials into the cavity through injection molding or pressing, and use the cooperation between the upper mold core 7 and the lower mold core 8 to form the product; finally, after the product cools, open the mold and use the ejector plate 5 to eject the formed cover plate 16. The entire production process can quickly switch product types according to actual needs, flexibly adapting to the production requirements of different batches.
[0029] The main advantage of this application lies in realizing the design concept of a multi-functional mold. On the one hand, through a reasonable cavity design and replaceable insert structure, the mold can be compatible with the production of different types of cover plates 16, significantly reducing the mold development cost for multi-specification products. On the other hand, the mold adopts a standardized modular design, making insert replacement convenient, reducing production preparation time, and further improving production efficiency. In addition, the mold material is made of high-strength steel, and key parts undergo special surface treatment, which not only improves wear resistance but also enhances corrosion resistance, ensuring the stability of the mold in long-term use.
[0030] It should be noted that implementations not shown or described in the accompanying drawings or the main text of the specification are all forms known to those skilled in the art and are not described in detail. Furthermore, the definitions of the elements and methods described above are not limited to the various specific structures, shapes, or methods mentioned in the embodiments.
[0031] It should also be noted that this document may provide examples of parameters containing specific values, but these parameters need not be exactly equal to the corresponding values, but can approximate the corresponding values within acceptable error tolerances or design constraints. Directional terms mentioned in the embodiments, such as "up," "down," "front," "back," "left," "right," "inner," and "outer," are only for reference to the directions in the accompanying drawings and are not intended to limit the scope of protection of this application.
[0032] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.
Claims
1. A CFL VV cover plate mold, characterized in that, It includes an upper mold base (1), a lower mold base (2), an upper template (3), a lower template (4), an ejector plate (5), and a support plate (6) disposed on the lower mold base (2) for supporting the lower template (4). An upper mold core (7) is fixed inside the upper template (3), and a lower mold core (8) that cooperates with the upper mold core (7) is fixed inside the lower template (4). The lower mold core (8) is provided with a number of cavities for molding products. Each set of cavities includes a first cavity (9) and a second cavity (10). A first through groove (11) is provided between the first cavity (9) and the second cavity (10). A first insert (12) or a second insert (13) can be selectively inserted into the first through groove (11). The first insert (12) is used to separate the first cavity (9) and the second cavity (10), and the second insert (13) is used to connect the first cavity (9) and the second cavity (10).
2. The CFLAV cover plate mold according to claim 1, characterized in that, The upper mold core (7) has a second through groove (14) opposite to the first through groove (11). A third insert (15) is inserted into the second through groove (14). The third insert (15) fits with the first insert (12) to separate the first cavity (9) and the second cavity (10). The third insert (15) is separate from the second insert (13) to connect the first cavity (9) and the second cavity (10).
3. The CFLAV cover plate mold according to claim 1, characterized in that, The first insert (12) and the second insert (13) have a protrusion (17) at one end away from the cavity, and the end face of the lower mold core (8) has a groove that matches the protrusion (17).
4. The CFLAV cover plate mold according to claim 1, characterized in that, The cavity is provided in four groups, arranged in a grid pattern on the lower mold core (8).
5. The CFLAV cover plate mold according to claim 1, characterized in that, Both the first cavity (9) and the second cavity (10) are disc-shaped, and the diameter of the first cavity (9) is larger than the diameter of the second cavity (10).