Pipeline forming die and pipeline

Abstract

The utility model provides a pipeline forming die and a pipeline, and belongs to the field of polymer matrix composite materials. The problems that after the inner skin and the outer skin are formed in a split mode, plastic foam sandwich bonding is poor, and the efficiency is low and the cost is high due to a single product and a single mold are solved. A pipeline forming mold comprises an outer mold, a core mold is embedded in the inner side of the outer mold, at least one opening is formed in the circumferential wall of the outer mold, the left outer mold and the right outer mold are connected through a seam mold, and the seam mold is used for forming a locally-reinforced groove in the outer surface of a product; the forming assemblies are arranged at the openings in a one-to-one correspondence mode, and a forming cavity of a formed product is defined by the outer mold, the core mold and all the forming assemblies; the injection hole is formed in the wall surface of one side of the outer mold in a penetrating manner and communicates with the forming cavity; the forming assembly is a blocking mold or a through mold, when the forming assembly is the through mold, the end, close to the core mold, of the forming assembly is connected with the core mold to form a channel, and when the forming assembly is the blocking mold, the forming assembly is used for blocking the corresponding opening. The device is mainly used for forming pipelines.

Description

Technical Field

[0001] The utility model belongs to the field of polymer-based composite materials, in particular to a pipeline forming die and a pipeline. Background Art

[0002] With the application of various advanced resin-based composite materials in high-end equipment in my country, electromagnetic shielding components of thermal insulation ventilation single-pass, double-pass and three-pass for high-end equipment have also been used in this field, and even the reinforcing materials of resin-based composite materials have been expanded from glass fiber to carbon fiber, BPO fiber and aramid, etc. The composite thermal insulation ventilation single-pass, double-pass and three-pass are light and high-strength, and easy and fast to form. In addition, their integrity and appearance perfection during the forming process are also indispensable elements for improving the overall high-end equipment. The outer skin of this product is equipped with an electromagnetic shielding layer to provide protection for high-performance equipment.

[0003] In order to ensure that single-pass, double-pass and three-way thermal insulation ventilation meet the technical requirements of high-end equipment, in the preparation process of single-pass, double-pass and three-way, each product often corresponds to a corresponding mold for use, which will result in a large number of molds and increased costs due to re-molding.

[0004] For the traditional manufacturing method, the prefabricated foam plastic is often formed in advance and then bonded to the inner and outer skins. This method may lead to poor bonding problems, resulting in products with difficult quality assurance. Utility Model Content

[0005] In view of this, the utility model aims to provide a pipeline forming mold and a pipeline to solve the problems of poor bonding of plastic foam cores after separate molding of inner and outer skins and high efficiency and low cost caused by a single product and a single mold.

[0006] To achieve the above object, according to one aspect of the utility model, a pipeline forming die is provided, comprising:

[0007] An outer mold, a core mold is nested inside, at least one opening is arranged on the peripheral wall of the outer mold, the outer mold comprises a left outer mold and a right outer mold, the left outer mold and the right outer mold are connected by a seam mold, and the seam mold is used to form a groove for local reinforcement on the outer surface of the product;

[0008] A molding component is arranged at each of the openings in a one-to-one correspondence, and the outer mold, the core mold and all the molding components enclose a molding cavity for the molded product;

[0009] An injection hole is provided on a wall surface of one side of the outer mold and is connected to the molding cavity;

[0010] The molding component is a blocking mold or a through mold. When the molding component is a through mold, one end of the molding component close to the core mold is connected to the core mold for molding a passage. When the molding component is a blocking mold, it is used to seal the corresponding opening.

[0011] Furthermore, the molding assembly includes a cover plate and a variable core, the cover plate is connected to the end surface of the opening, the cover plate is connected to the variable core, and the variable core is placed in the opening.

[0012] Furthermore, the seam mold includes a left seam mold and a right seam mold connected to each other.

[0013] Furthermore, the core mold is provided with bolt holes for installing the through mold.

[0014] Furthermore, the end surface of the blocking mold close to the core mold is flush with the inner wall of the outer mold at a corresponding position.

[0015] According to another aspect of the utility model, there is provided a pipeline formed using the above-mentioned pipeline forming mold, comprising at least one passage, wherein the pipeline wall is a sandwich structure comprising an inner skin, an insulation layer and an outer skin arranged in sequence from the inside to the outside, an electromagnetic shielding layer is arranged in the outer skin, and a groove is arranged on the outer wall of the outer skin.

[0016] Furthermore, a neck is provided at the pipe opening of at least one passage.

[0017] Furthermore, the electromagnetic shielding layer is a metal mesh.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. This mold can change the molding shape of the corresponding opening by setting the variable core, so that this mold can form one-way, two-way or three-way according to actual needs. It has strong versatility and adaptability to products. It does not need to set up multiple sets of molds for molding, which reduces the number of molds and improves the economic benefit ratio;

[0020] 2. The products produced by this mold will have grooves. Local reinforcement through the grooves can improve the product performance at the weak position, thereby improving the overall structural strength, so that the quality of the product can reach a higher standard and ensure the uniformity and stability of the product;

[0021] 3. The product produced by this mold has an electromagnetic shielding layer, which can perform electromagnetic shielding. At the same time, the thermal insulation layer can improve the thermal insulation performance, broaden the application range of the product, and enable the product to meet the application requirements of advanced resin-based composite materials in high-end equipment;

[0022] 4. In the molding process, the mold is used to first mold the inner skin and the outer skin, and then integrally pour the insulation layer, which can solve the problem of poor bonding of the plastic foam sandwich after the inner and outer skins are separately molded;

[0023] 5. The product produced by this mold is provided with a necking, through which two pipelines can be connected. A reinforcement area is formed by the necking of the two pipelines. By wrapping with a composite material of the same material as the outer skin and electromagnetic shielding material, the connection between the two adjacent products is made more secure. After wrapping, the outer surface is polished and smooth with the overall product, and can be made into a complete whole, making the overall appearance more perfect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0025] Figure 1 This is a combined state diagram of a pipeline forming mold described in the utility model;

[0026] Figure 2 This is a front view of a pipeline forming mold described in the utility model;

[0027] Figure 3 The utility model Figure 2 AA section view;

[0028] Figure 4 The utility model Figure 3 A partial enlarged schematic diagram of part I;

[0029] Figure 5 The utility model Figure 2 BB section view;

[0030] Figure 6 This is a rear view of a pipeline forming mold described in the utility model;

[0031] Figure 7 It is a three-dimensional structural schematic diagram of the core mold described in the utility model;

[0032] Figure 8 This is an exploded view of the mold blocking described in the utility model;

[0033] Fig. 9 It is an exploded view of the through mold described in the utility model;

[0034] Fig.10 It is an exploded view of the seam mold described in the utility model;

[0035] Fig.11 This is a schematic diagram of the distribution positions of the grooves and the neckings described in the utility model;

[0036] Fig.12 This is a schematic diagram of the structure of a tee formed by a pipeline forming mold according to the utility model;

[0037] Fig.13 This is a schematic diagram of two tees formed by the utility model being connected and reinforced by necking;

[0038] Fig.14 This is a front view of a single-pass pipe formed by a pipe forming mold according to the utility model;

[0039] Fig.15 It is a left view of a single-pass formed by a pipeline forming mold of the utility model;

[0040] Fig.16 It is a right view of a single-pass formed by a pipeline forming mold according to the utility model;

[0041] Fig.17 For the utility model Fig.15 CC section view;

[0042] Fig.18 For the utility model Fig.14 DD section view;

[0043] Fig.19 It is a left view of a double-pass formed by a pipeline forming mold of the utility model;

[0044] Fig. 20 For the utility model Fig.19 EE section view;

[0045] Fig.21 This is a front view of a double-pass formed by a pipeline forming mold according to the utility model;

[0046] Fig. 22 For the utility model Fig.21 FF section view;

[0047] Fig.23 It is a right view of a double-pass formed by a pipeline forming mold described in the utility model;

[0048] Fig.24 This is a right view of a tee formed by a pipeline forming mold according to the utility model;

[0049] Fig.25 For the utility model Fig.24 GG section view;

[0050] Fig.26 This is a front view of a tee formed by a pipeline forming mold according to the utility model;

[0051] Fig. 27 For the utility model Fig.26 HH sectional view;

[0052] Fig.28 It is a left view of a tee formed by a pipeline forming mold of the utility model;

[0053] Fig.29 It is a schematic diagram of the electromagnetic shielding layer of the utility model in the outer skin;

[0054] Core mold 1; outer mold 2; cover plate 3; variable core 4; injection hole 5; seam mold 6; bolt 7; inner skin 8; thermal insulation layer 9; outer skin 10; groove 11; neck 12; electromagnetic shielding layer 13. DETAILED DESCRIPTION

[0055] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely explain the technical solutions in the embodiments of the utility model. It should be noted that the embodiments and features in the embodiments of the utility model can be combined with each other without conflict, and the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

[0056] It should be noted that the descriptions of the present invention regarding directions such as "left", "right", "left side", "right side", "upper", "lower", "top", "bottom", etc. are all defined based on the relationship between the orientations or positions shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure described must be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention. In the description of the present invention, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0057] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] Referring to the accompanying drawings, this embodiment is described. According to one aspect of the utility model, a pipeline forming mold is provided, comprising:

[0059] The outer mold 2 has a core mold 1 nested inside, and at least one opening is arranged on the peripheral wall of the outer mold 2. The outer mold 2 includes a left outer mold and a right outer mold, and the left outer mold and the right outer mold are connected by a seam mold 6, and the seam mold 6 is used to form a groove 11 for local reinforcement on the outer surface of the product; according to the use characteristics of the mold and the type of molded product, at least one passage will be formed, and this passage is formed by the core mold 1. Through the use of the core mold 1, it can form a corresponding molding cavity in cooperation with the outer mold 2. In this case, it is necessary to install a plugging mold on all other openings, and the plugging mold can block the opening accordingly. At this time, the plugging mold is set close to the side of the core mold 1 to be flush with the inner wall of the outer mold 2, so as to ensure that a normal and smooth wall surface can be formed here. Since the target product of this application is a one-way, two-way or three-way, the two-way and three-way situations are described accordingly here. For the two-way, since the core mold 1 has formed a passage, a through mold can be set in one opening for use, and a plugging mold is set in the remaining openings for blocking, thereby completing the production of the two-way. For the tee, the corresponding settings are sufficient, and the principle is the same. The outer mold 2 is divided into a split mode of a left outer mold and a right outer mold. When assembling, a left seam mold and a right seam mold are set between the left outer mold and the right outer mold, and the mold is fixed by inserting bolts 7, so that the corresponding molding effect can be achieved. The groove 11 is a depression formed when the seam mold 6 is molded. The setting of this groove 11 can be used for later reinforcement. After wrapping with the same material as the outer skin and curing and molding, the structural strength can be improved to form a product with uniform and stable structure.

[0060] The molding components are arranged one by one at each of the openings. The outer mold 2, the core mold 1 and all the molding components enclose a molding cavity for the molded product. The shape of the molding cavity is the shape of the product. By setting a blocking mold or a through mold, the shape of the corresponding opening can be changed to form different product shapes. Therefore, a complete set of molds can be used to mold different product types, with strong versatility and low mold opening cost.

[0061] The injection hole 5 is provided through the wall surface of one side of the outer mold 2 and is connected with the molding cavity. There are five injection holes 5, which can improve the efficiency of injecting the foam stock solution.

[0062] The molding component is a blocking mold or a through mold. When the molding component is a through mold, one end of the molding component close to the core mold 1 is connected to the core mold 1 to form a passage. When the molding component is a blocking mold, it is used to block the corresponding opening. By changing the blocking mold and the through mold, the corresponding molding type can be changed, thereby achieving a technical advantage of strong adaptability.

[0063] In this embodiment, the molding assembly includes a cover plate 3 and a variable core 4, wherein the cover plate 3 is connected to the end surface of the opening, the cover plate 3 is connected to the variable core 4, and the variable core 4 is placed in the opening. By the separate arrangement of the cover plate 3 and the variable core 4, the opening is blocked by the cover plate 3, and the molding type can be replaced by changing the variable core 4. The cover plate 3 and the variable core 4 are connected by bolts, and similarly, the cover plate 3 is connected to the corresponding opening by bolts.

[0064] In this embodiment, the seam mold 6 includes a left seam mold and a right seam mold connected to each other. The left seam mold and the right seam mold are also provided in a separate form and connected by bolts, so as to form a groove 11 of the product and perform corresponding reinforcement through the groove 11. The left seam mold and the right seam mold are connected by bolts 7.

[0065] In this embodiment, the core mold 1 is provided with bolt holes for installing the through mold. For the through mold, it needs to be connected to the core mold 1 to effectively form a passage. The bolt holes provided on the core mold 1 can facilitate the positioning and installation of the through mold, thereby improving the convenience of operation.

[0066] In this embodiment, the end face of the plugging mold close to the core mold 1 is flush with the inner wall of the corresponding position of the outer mold 2. This setting is to form a smooth product surface. For openings that do not require forming pipelines, the setting of the plugging mold can make the corresponding openings invalid, similar to treating the openings into a form of forming blind plates.

[0067] According to another aspect of the utility model, a pipeline formed by using the above-mentioned pipeline forming mold is provided, comprising at least one passage, wherein the pipeline wall surface is a sandwich structure including an inner skin 8, a thermal insulation layer 9 and an outer skin 10 arranged in sequence from the inside to the outside, an electromagnetic shielding layer 13 is arranged in the outer skin 10, and a groove 11 is arranged on the outer wall of the outer skin 10. The formation of the groove 11 provides a reinforcement area for subsequent reinforcement, which is convenient for wrapping the reinforcement material at a later stage.

[0068] In this embodiment, a constriction 12 is provided at the pipe opening of at least one passage. The provision of the constriction 12 can provide a reinforcement area when two pipe openings are spliced ​​accordingly, so that corresponding reinforcement materials can be wrapped during splicing to improve the overall strength of the splicing, and a flat surface can be obtained after polishing after reinforcement and curing, thereby obtaining a product with high strength and good appearance.

[0069] In this embodiment, the electromagnetic shielding layer 13 is a metal mesh. The provision of the metal mesh can improve the electromagnetic shielding performance, so that the product can adapt to corresponding use conditions, and can perform heat preservation and shield electromagnetic signals.

[0070] According to another aspect of the utility model, a method for forming a pipeline using the above-mentioned pipeline forming mold is provided, comprising the following steps:

[0071] S1. Assemble the left and right outer mold complexes. According to the number of passages required by the product, install a plugging mold or a through mold in the opening of the outer mold 2. The through mold is screwed to the side wall of the core mold 1. Install a plugging mold at the opening where no passage is required. Then, connect the left outer mold, the left seam mold, the right seam mold and the right outer mold accordingly to form a complete left and right outer mold complex.

[0072] S2, forming the left and right outer skins, applying a release agent to the inner surfaces of the left and right outer mold composites, and then wet-laying or prepreg laying according to the structural and layer requirements of the outer skin 10, and laying the electromagnetic shielding layer 13 in the outer skin 10, and selecting a matrix resin for curing according to the product performance requirements; contact molding, vacuum introduction molding, or autoclave molding of the left and right outer skins according to the product performance requirements, and selecting a matrix resin according to the product performance requirements, such as epoxy resin, phenolic resin, polyester resin, or even epoxy modified resin, isocyanate resin, etc., and reinforcing materials are also determined according to the product performance requirements, such as ordinary alkali-free fiber, high-strength glass fiber, high-silica glass fiber, carbon fiber, Kevlar fiber, etc., and curing is performed according to the selected matrix resin curing system requirements;

[0073] S3, inner skin 8 is formed, a release agent is applied to the outer surface of the core mold 1, and then wet method or prepreg is laid according to the structure and layer requirements of the inner skin 8, and then the inner skin 8 is cured and formed according to the product performance requirements; contact molding, vacuum induction molding, or autoclave molding of the inner skin are performed according to the product performance requirements. The base material, reinforcement material and curing system correspond to the outer skin. The inner skin is generally not provided with a metal mesh, but is laid according to the layer requirements of the inner skin;

[0074] S4, forming the thermal insulation layer, trimming the edges of the inner skin 8 and the left and right outer skins to ensure that there is no shortage of material and the overall technical requirements of the inner and outer skins are met. After the left and right outer skins have neat butt joints without interference, the left and right outer mold complexes with the left and right outer skins are molded together with the core mold 1 with the inner skin 8 so that the injection hole 5 faces upward, and the foam stock solution mixed in proportion is injected through the injection hole 5 to form the thermal insulation layer 9;

[0075] S5, demoulding, demoulding after a certain period of time;

[0076] S6. Reinforce the outer skin. Wrap the reinforcing material at the groove 11. The reinforcing material is the same composite material as the outer skin plus electromagnetic shielding material. After wrapping and curing, the outer surface is polished to ensure that the overall product is smooth and flat. The product is completed.

[0077] In this embodiment, the placement time in step S5 is 24 hours, and the order of demolding is to first remove the fastening bolts of the left and right outer mold complexes and the core mold 1, then remove the through mold and the blocking mold, and then eject the core mold 1 and then remove the outer mold 2, and the product and the mold are separated.

[0078] Through the necking structure 12 at the end of the product, multiple tees or straight pipes can be connected in series. After the series connection, each two neckings just form a pair of left and right necks, which provides a reinforcement area for the adjacent two products to better improve the connection strength. By wrapping the composite material of the same material as the outer skin and adding electromagnetic shielding material, the connection between the two adjacent products is more secure. After wrapping, the outer surface is polished and smooth with the overall product, and can be made into a complete whole, making the overall appearance more perfect. Since the entire outer skin is sandwiched with a metal mesh as an electromagnetic shielding layer, the product has an overall electromagnetic shielding function in addition to the heat preservation and ventilation functions.

[0079] The embodiments of the utility model disclosed above are only used to help explain the utility model. The embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. According to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model.

Claims

1. A pipeline forming mold, characterized in that: include: An outer mold (2) is provided with a core mold (1) nested inside, and at least one opening is provided on the peripheral wall of the outer mold (2). The outer mold (2) comprises a left outer mold and a right outer mold, and the left outer mold and the right outer mold are connected by a seam mold (6). The seam mold (6) is used to form a groove (11) for local reinforcement on the outer surface of the product; A molding component is arranged one by one at each of the openings, and the outer mold (2), the core mold (1) and all the molding components together form a molding cavity for the molded product; An injection hole (5) is provided through a wall surface of one side of the outer mold (2) and is connected to the molding cavity; The molding component is a blocking mold or a through mold. When the molding component is a through mold, one end of the molding component close to the core mold (1) is connected to the core mold (1) for molding a passage. When the molding component is a blocking mold, it is used to seal the corresponding opening.

2. A pipeline forming mold according to claim 1, characterized in that: The molding assembly comprises a cover plate (3) and a variable core (4); the cover plate (3) is connected to the end surface of the opening; the cover plate (3) is connected to the variable core (4); and the variable core (4) is placed in the opening.

3. A pipeline forming mold according to claim 2, characterized in that: The seam mold (6) comprises a left seam mold and a right seam mold which are connected to each other.

4. A pipeline forming mold according to claim 1, characterized in that: The core mold (1) is provided with bolt holes for installing the through mold.

5. The pipeline forming mold according to claim 1, characterized in that: The end surface of the blocking mold close to the core mold (1) is flush with the inner wall of the outer mold (2) at a corresponding position.

6. A pipeline formed by using a pipeline forming mold as claimed in any one of claims 1 to 5, comprising at least one passage, characterized in that: The pipeline wall surface is a sandwich structure including an inner skin (8), a thermal insulation layer (9) and an outer skin (10) arranged in sequence from the inside to the outside, an electromagnetic shielding layer (13) is arranged inside the outer skin (10), and a groove (11) is arranged on the outer wall of the outer skin (10).

7. A pipeline according to claim 6, characterized in that: A constriction (12) is provided at the pipe opening of at least one passage.

8. A pipeline according to claim 6, characterized in that: The electromagnetic shielding layer (13) is a metal mesh.

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