A composite material cylindrical shell forming mold
By designing a composite cylindrical shell forming mold, using assembled structure and inclined surface design, the problem of difficult demolding of existing molds when forming complex shape products at high temperatures is solved, the product finish and dimensional accuracy are guaranteed, and maintenance costs are reduced.
Patent Information
- Application Number
- CN202420824943.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-20
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-04-20
AI Technical Summary
When existing composite molds form complex shape products at high temperatures, it is easy to cause difficulty in demoulding due to inconsistent expansion coefficients between the mold and the material, especially the structure in which multiple step surfaces are provided on the inner surface of the shell.
A composite cylindrical shell forming mold is designed, including cylinder, insert, front flange and rear flange. The mold design is simplified by assembly structure. The cylinder and insert adopt an inclined surface design. The insert and the cylinder are fastened and connected by bolts. The front flange and rear flange are assembled and connected by cylindrical pins to ensure smooth mold release.
It realizes that the mold release of composite material molds is more convenient, the product finish and dimensional accuracy are guaranteed, which reduces maintenance costs and improves the safety and reliability of the project.
Smart Images
Figure CN222741901U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of molds, in particular to a cylindrical shell forming mold. Background Art
[0002] The autoclave method is one of the commonly used processes for composite material molding. It is a method that uses high temperature and high pressure gas to act on the mold and prepreg at the same time, and solidifies the prepreg under a certain temperature and pressure. Usually, a male mold or a female mold is used to mold the product. Since the product is solidified at high temperature and demoulded at low temperature, and the expansion coefficient of the metal mold and the composite product is inconsistent, it is easy to have difficulty separating the product and the mold for products with complex shapes, especially when the inner surface of the shell has a structure with multiple step surfaces.
[0003] Therefore, how to design a composite material molding mold to ensure the surface finish, contour, thickness and other dimensional accuracy requirements of the molded product while ensuring smooth demoulding is a topic that technical personnel in this field need to study. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a composite material cylindrical shell forming die, which solves the problem of difficult demoulding in the prior cylindrical shell forming process.
[0005] The purpose of the utility model is achieved in this way: a composite material cylindrical shell forming mold, comprising
[0006] The cylinder is used as the supporting body and partially as the paving surface;
[0007] The insert is installed on the outer periphery of the cylinder, and the outer periphery serves as the paving surface;
[0008] The front flange is installed on the outer periphery of the front end of the cylinder body and serves as the front paving surface of the cylindrical shell;
[0009] The rear flange is installed on the outer periphery of the rear end of the cylinder and serves as the rear end paving surface of the cylindrical shell.
[0010] As a further limitation of the present utility model, the front end surface of the cylinder is provided with reinforcing ribs, and the rear end surface of the cylinder is also provided with reinforcing ribs.
[0011] As a further limitation of the present invention, the reinforcing ribs on the front end surface and the reinforcing ribs on the rear end surface are perpendicular to each other.
[0012] As a further limitation of the present invention, the insert is provided in plurality and spliced together to form a cylindrical structure, which is sleeved on the outer circumference of the cylinder.
[0013] As a further limitation of the present invention, the outer surface of the cylinder and the inner surface of the insert are both inclined surfaces.
[0014] As a further limitation of the present invention, the insert is fastened to the cylinder body by bolts.
[0015] As a further limitation of the present invention, the front flange, the rear flange and the cylinder are assembled and connected by cylindrical pins.
[0016] Compared with the prior art, the utility model has the following beneficial effects: the mold structure of the utility model is simple, and the assembly structure is adopted, which makes demoulding more convenient. After trial use, the mold is easy to operate, the product demoulding is easy to operate, and the product finish is smooth. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.
[0018] Figure 1 It is a schematic diagram of the structure of the utility model.
[0019] Figure 2 This is an exploded view of the utility model.
[0020] Figure 3 This is a schematic diagram of the cylinder structure in the utility model Figure 1 .
[0021] Figure 4 This is a cross-sectional view of the utility model and product molding.
[0022] Figure 5 This is a schematic diagram of the product structure obtained by the utility model.
[0023] Among them, 100 is the cylinder, 101 is the reinforcement rib, 102 is the countersunk hole, 200 is the insert, 201 is the threaded hole, 300 is the front flange, 400 is the rear flange, 500 is the shell, and 600 is the cylindrical pin. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] like Figure 1-4 A composite cylindrical shell forming mold shown, comprising
[0026] The cylinder 100 serves as a supporting body and partially as a paving surface;
[0027] The insert 200 is installed on the outer periphery of the cylinder 100, and the outer periphery serves as a paving surface;
[0028] The front flange 300 is installed on the outer periphery of the front end of the cylinder 100 and serves as the front paving surface of the cylindrical shell 500;
[0029] The rear flange 400 is installed on the outer periphery of the rear end of the cylinder 100 and serves as the rear end paving surface of the cylindrical shell 500.
[0030] Specifically, the outer circumference of the cylinder 100 can be processed with profile steps as required, and the cylinder 100, the insert 200, the front flange 300, and the rear flange 400 are made of 45# steel (HRC26-30).
[0031] It should be noted that, during assembly, the insert 200 is first installed on the cylinder 100 through fasteners, and then the front flange 300 and the rear flange 400 are inserted from the front and rear ends of the cylinder 100 and fixed; then it is laid on the mold. During demolding, the front flange 300 and the rear flange 400 at both ends are first removed, and then the fasteners between the cylinder 100 and the insert 200 are loosened, the cylinder 100 is pulled out, and then the insert 200 is separated from the inside of the product to complete the demolding.
[0032] In summary, the mold structure of the utility model is simple and adopts an assembly structure, which makes demoulding more convenient. After trying, the mold is easy to operate for laying and product demoulding. When laying, the insert 200 is a convex mold structure, thus ensuring the smoothness of the product.
[0033] Furthermore, a reinforcing rib 101 is provided on the front end surface of the cylinder 100 , and a reinforcing rib 101 is also provided on the rear end surface of the cylinder 100 .
[0034] Specifically, the reinforcing rib 101 is integrally formed with the cylinder 100 and is a long strip structure that passes through the center of the circle.
[0035] It should be noted that the design of the reinforcing ribs 101 enhances the strength of the overall structure of the cylinder 100. The provision of the reinforcing ribs 101 can effectively disperse the load and reduce the situation of local stress concentration, thereby improving the compressive strength and overall stability of the cylinder 100. This design can also extend the service life of the structure, reduce maintenance costs, and improve the safety and reliability of the project.
[0036] Furthermore, the reinforcing ribs 101 on the front end surface and the reinforcing ribs 101 on the rear end surface are perpendicular to each other.
[0037] It should be noted that such a design can distribute the stress more evenly, so that the cylinder 100 is subjected to more uniform stress when bearing external loads, and effectively prevents local damage and deformation of the structure.
[0038] Furthermore, a plurality of inserts 200 are provided, which are spliced together to form a cylindrical structure and are sleeved on the outer circumference of the cylinder body 100 .
[0039] Specifically, in this embodiment, a total of six inserts 200 are provided, dividing the cylindrical structure into six parts. During installation, the six inserts 200 are installed one by one on the surface of the cylinder 100, and during removal, the six inserts 200 are also removed one by one.
[0040] It should be noted that such a design facilitates demoulding.
[0041] Furthermore, the outer surface of the cylinder 100 and the inner surface of the insert 200 are both inclined surfaces.
[0042] Specifically, the angle between the inclined plane and the horizontal plane is 1.5°.
[0043] This design facilitates demoulding.
[0044] Furthermore, the insert 200 and the cylinder 100 are fastened together by bolts.
[0045] Specifically, a plurality of countersunk holes 102 are formed on the cylinder 100 , and a plurality of threaded holes 201 are formed on the inner surface of the insert 200 . The insert 200 is mounted on the cylinder 100 by bolts.
[0046] This design makes disassembly and assembly more convenient.
[0047] Furthermore, the front flange 300 , the rear flange 400 and the cylinder 100 are assembled and connected by cylindrical pins 600 .
[0048] This design makes assembly more convenient.
[0049] The final product after demoulding is as follows Figure 5 shown.
[0050] The above embodiments are only used to help understand the method and core idea of the utility model. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made to the utility model without departing from the principle of the utility model, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.
Claims
1. A composite cylindrical shell forming die, characterized in that: include The cylinder (100) serves as a supporting body and partially serves as a paving surface; The insert (200) is installed on the outer periphery of the cylinder (100), and the outer periphery serves as a paving surface; A front flange (300) is mounted on the outer periphery of the front end of the cylinder (100) and serves as a front paving surface of the cylindrical shell (500); The rear flange (400) is mounted on the outer periphery of the rear end of the cylinder (100) and serves as the rear end paving surface of the cylindrical shell (500).
2. A composite material cylindrical shell (500) forming die according to claim 1, characterized in that: The front end surface of the cylinder (100) is provided with a reinforcing rib (101), and the rear end surface of the cylinder (100) is also provided with a reinforcing rib (101).
3. A composite material cylindrical shell (500) forming die according to claim 2, characterized in that: The reinforcing ribs (101) on the front end surface and the reinforcing ribs (101) on the rear end surface are perpendicular to each other.
4. A composite material cylindrical shell (500) forming die according to any one of claims 1 to 3, characterized in that: The insert (200) is provided in plurality and is spliced together to form a cylindrical structure, which is sleeved on the outer circumference of the cylinder (100).
5. A composite material cylindrical shell (500) forming die according to any one of claims 1 to 3, characterized in that: The outer surface of the cylinder (100) and the inner surface of the insert (200) are both inclined surfaces.
6. A composite material cylindrical shell (500) forming die according to any one of claims 1 to 3, characterized in that: The insert (200) and the cylinder (100) are fastened and connected via bolts.
7. A composite material cylindrical shell (500) forming die according to any one of claims 1 to 3, characterized in that: The front flange (300), the rear flange (400) and the cylinder (100) are assembled and connected using cylindrical pins (600).