Injection molding and hot melting composite floating body

By using a composite structure of EPS foam and injection-molded sheets, the problems of complicated manufacturing of floating bodies and limited materials are solved, enabling simple mass production and flexible material selection.

CN223559806UActive Publication Date: 2025-11-18NINGBO YUEYANG ROTATIONAL MOULD CO LTD
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Patent Information

Application Number
CN202423069398.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-12
Publication Date
2025-11-18
Estimated Expiration
2034-12-12

AI Technical Summary

Technical Problem

The existing floating body manufacturing process is cumbersome and difficult to mass-produce. Furthermore, the selection of materials is limited by the rotational molding process, making it impossible to select the best material based on the application.

Method used

It adopts a composite structure of EPS foam and injection-molded sheets. The top sheet, bottom sheet, side sheet and arc sheet are made by injection molding process, and the EPS foam is closed inside to form a composite structure. The mold making is omitted and more materials are used for injection molding and assembly.

Benefits of technology

It simplifies the manufacturing process, reduces material limitations, facilitates mass production, lowers production costs, and allows for material selection to adapt to different applications.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an injection molding hot melting composite floating body which structurally comprises a fan-shaped blocky EPS foaming body, a top piece and a bottom piece which are bonded and covered are arranged on the top face and the bottom face of the EPS foaming body respectively, and a left side piece and a right side piece which are bonded and covered are arranged on the left side face and the right side face of the EPS foaming body respectively. The inner arc surface of the EPS foaming body is provided with a small arc sheet which is adhered and covered, the outer arc surface of the EPS foaming body is provided with a large arc sheet which is adhered and covered, and then the top sheet, the bottom sheet, the left side sheet, the right side sheet, the small arc sheet and the large arc sheet are connected with one another, so that the EPS foaming body can be sealed inside to form a composite structure; obviously, compared with a traditional rotational molding filling structure, the assembled composite structure has the advantages that due to the fact that manufacturing and application of a clamping die are omitted, the manufacturing process is simpler and more convenient, the problem of limitation of manufacturing materials is solved, in other words, better manufacturing materials can be selected according to actual use occasions to conduct injection molding and assembling connection on the injection molding pieces, and the production efficiency is improved. Therefore, the batch production is easier to carry out.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of floating bodies, specifically a kind of injection molding hot melt composite floating body. BACKGROUND

[0002] At present, the floating body constituting offshore floating platform is usually manufactured by rotational molding process, specifically, a hollow floating body is first manufactured by rotational molding, then mold clamp is made and placed into the hollow floating body and enters oven, and finally product forming is completed by filling EPS foaming material into the hollow floating body, the floating body manufactured by this method mainly has the following defects: 1, first rotational molding and then filling, mold clamp needs to be manufactured in between, resulting in that manufacturing process is more troublesome and batch production is difficult to carry out;2, rotational molding process has certain use requirements for rotational molding material, so that the floating body material manufactured by rotational molding is also limited, especially the floating body is integrally formed by rotational molding, and each surface of the formed floating body cannot be replaced, which makes the manufactured floating body unable to select better manufacturing material according to actual use occasion, that is, the use range of the floating body is easily limited by rotational molding material. SUMMARY

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide an injection molding hot melt composite floating body which is simple in manufacturing process, easy to carry out batch production and less limited by manufacturing material.

[0004] The technical problem of the utility model is solved by the following technical scheme.

[0005] An injection molding hot melt composite floating body includes an EPS foaming body, the top surface and the bottom surface of the EPS foaming body are respectively provided with a top sheet and a bottom sheet which are adhesively covered, the left side surface and the right side surface of the EPS foaming body are respectively provided with a left side sheet and a right side sheet which are adhesively covered, the inner arc surface of the EPS foaming body is provided with a small arc sheet which is adhesively covered, and the outer arc surface of the EPS foaming body is provided with a large arc sheet which is adhesively covered; the top sheet, the bottom sheet, the left side sheet, the right side sheet, the small arc sheet and the large arc sheet are connected with each other, and the EPS foaming body is enclosed inside to form a composite structure.

[0006] The top sheet, the bottom sheet, the left side sheet, the right side sheet, the small arc sheet and the large arc sheet are all injection molded sheets formed by injection molding process.

[0007] The EPS foaming body is in the shape of a fan-shaped block; the top sheet and the bottom sheet are both fan-shaped injection molded sheets of the same shape; and the left side sheet and the right side sheet are both rectangular injection molded sheets of the same shape.

[0008] The four outer edges of the top sheet are provided with excess arc grooves between the top end of the left side sheet, the top end of the right side sheet, the top end of the small arc sheet and the top end of the large arc sheet.

[0009] The small arc sheet, the left side sheet, the large arc sheet and the right side sheet are provided with outwardly protruding excess arc edges.

[0010] The left side sheet and the right side sheet are provided with mounting grooves, the axis of the mounting grooves is parallel to the axis of the sector block, and the two ends of the mounting grooves penetrate the top sheet and the bottom sheet respectively.

[0011] The left side sheet, the right side sheet and the large arc sheet are provided with a plurality of splicing holes and a plurality of splicing grooves.

[0012] The outer end of the left side sheet adjacent to the large arc sheet is provided with a plurality of vertically arranged splicing holes and splicing grooves; the outer end of the right side sheet adjacent to the large arc sheet is provided with a plurality of vertically arranged splicing holes and splicing grooves.

[0013] The two ends of the large arc sheet are respectively provided with a plurality of vertically arranged splicing grooves.

[0014] The top sheet, the bottom sheet, the left side sheet, the right side sheet, the small arc sheet and the large arc sheet are connected by mutual fusion or mutual welding.

[0015] Compared with the prior art, the utility model mainly is with one EPS foamed body of fan-shaped block to the floating body, and is equipped with the top sheet and bottom sheet of bonding coverage respectively on the top surface and bottom surface of the EPS foamed body, is equipped with the left side sheet and right side sheet of bonding coverage respectively on the left side and right side of the EPS foamed body, is equipped with the small arc sheet of bonding coverage on the inner arc surface of the EPS foamed body, is equipped with the large arc sheet of bonding coverage on the outer arc surface of the EPS foamed body, then mutual connection between the top sheet, bottom sheet, left side sheet, right side sheet, small arc sheet and large arc sheet, and the EPS foamed body is enclosed in and forms the composite structure, obviously, compared with the traditional rotational moulding filling structure, since the production application of clamp mould is omitted, the manufacturing process is more simple, especially the composite forming of the closed EPS foamed body by the fusion or welding connection of the top sheet, bottom sheet, left side sheet, right side sheet, small arc sheet and large arc sheet, more solves the problem that the traditional rotational moulding manufacturing is limited by rotational moulding material, that is, the top sheet, bottom sheet, left side sheet, right side sheet, small arc sheet and large arc sheet can be formed by injection molding process of more manufacturing materials, that is, according to the actual use occasion, the parts are connected by injection and assembly, so batch production is also easier. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a perspective view of one viewing direction of the utility model.

[0017] Figure 2 Another perspective view of the utility model.

[0018] Figure 3 Plan view of the utility model.

[0019] Figure 4 A-A sectional view of Figure 3 .

[0020] Figure 5 Bottom view of Figure 3 . DETAILED DESCRIPTION

[0021] The utility model embodiment will be described in detail below according to the above drawings.

[0022] As Figures 1-5 shown, 1.EPS foams, 11.top sheet, 12.left side sheet, 13.small arc sheet, 14.large arc sheet, 15.right side sheet, 16.bottom sheet, 2.mounting groove, 3.splicing hole, 4.splicing groove, 5.transition arc groove, 6.transition arc edge.

[0023] A kind of injection molding hot melt composite float, as Figure 1 , Figure 2 shown, usually several composite floats are collectively assembled to build a sea floating platform, such as navigation mark floating platform, etc., the process shape of the composite float usually includes quarter circle circular sector, half circle semicircle or cylinder, etc., and the embodiment is described with quarter circle circular sector as an example.

[0024] Its structure includes a fan-shaped block EPS foams 1, the top surface and bottom surface of the EPS foams are respectively provided with top sheet 11 and bottom sheet 16 of adhesive covering, the left side surface and right side surface of the EPS foams are respectively provided with left side sheet 12 and right side sheet 15 of adhesive covering, the inner arc surface of the EPS foams is provided with small arc sheet 13 of adhesive covering, the outer arc surface of the EPS foams is provided with large arc sheet 14 of adhesive covering, and top sheet 11, bottom sheet 16, left side sheet 12, right side sheet 15, small arc sheet 13 and large arc sheet 14 are connected with each other by fusion or welding, that is, EPS foams 1 can be enclosed, thereby forming a composite structure.

[0025] Among them, top sheet 11, bottom sheet 16, left side sheet 12, right side sheet 15, small arc sheet 13 and large arc sheet 14 are injection molded sheet made by injection molding process, and more manufacturing materials can be applied by using injection molding process, that is, better manufacturing materials are selected according to actual use occasions to injection mold and assemble these components, thereby greatly reducing the manufacturing material limitation of the composite float.

[0026] The top sheet 11 and the bottom sheet 16 are both the same fan-shaped injection-molded sheet, and the left side sheet 12 and the right side sheet 15 are both the same rectangular injection-molded sheet, so that the number of injection-molded molds can be reduced, and mass production is facilitated and the production cost is reduced.

[0027] The four outer edges of the top sheet 11 are provided with excess arc grooves 5 between the top end of the left side sheet, the top end of the right side sheet, the top end of the small-arc sheet and the top end of the large-arc sheet, and the four outer edges of the bottom sheet 16 are also provided with excess arc grooves 5 between the bottom end of the left side sheet, the bottom end of the right side sheet, the bottom end of the small-arc sheet and the bottom end of the large-arc sheet.

[0028] Excess arc edges 6 are provided between the small-arc sheet 13, the left side sheet 12, the large-arc sheet 14 and the right side sheet 15, and specifically, the excess arc edges 6 are provided between the two ends of the small-arc sheet 13 and the inner end of the left side sheet and the inner end of the right side sheet, and the excess arc edges 6 are also provided between the two ends of the large-arc sheet 14 and the outer end of the left side sheet and the outer end of the right side sheet.

[0029] The left side sheet 12 and the right side sheet 15 are both provided with mounting grooves 2, the axis of the mounting grooves is parallel to the axis of the fan-shaped block, and the two ends of the mounting grooves 2 penetrate the top sheet 11 and the bottom sheet 16, respectively, and the mounting grooves 2 are used for the following purpose: when a plurality of composite floating bodies are assembled to form a sea floating platform, the mounting grooves 2 of adjacent two composite floating bodies are engaged to form mounting holes, so that other equipment on the sea floating platform can be conveniently inserted and mounted.

[0030] The left side sheet 12, the right side sheet 15 and the large-arc sheet 14 are all provided with a plurality of splicing holes 3 and a plurality of splicing grooves 4, and specifically, the outer end of the left side sheet 12 adjacent to the large-arc sheet 14 is provided with a plurality of vertically-alternately-arranged splicing holes 3 and splicing grooves 4, and the outer end of the right side sheet 15 adjacent to the large-arc sheet 14 is also provided with a plurality of vertically-alternately-arranged splicing holes 3 and splicing grooves 4, and adjacent two composite floating bodies are spliced and fixed through the splicing holes 3 and the splicing grooves 4.

[0031] The two ends of the large-arc sheet 14 are both provided with a plurality of vertically-arranged splicing grooves 4, and the purpose is to connect adjacent two sea floating platforms into one through the splicing grooves 4 on the large-arc sheet 14 when the number of sea floating platforms is large.

[0032] Obviously, compared with the traditional rotational molding filling structure, the floating body splicing composite structure of the utility model is more convenient to manufacture because the production process is more simple due to the omission of the production and application of the mold clamp.

[0033] The above is only a specific embodiment of the utility model, and those skilled in the art should understand that any equivalent structural design of the embodiment should be included in the protection scope of the utility model.

Claims

1. An injection-molded hot-melt composite floating body, characterized in that, an EPS foam body (1) is provided with a top sheet (11) and a bottom sheet (16) respectively adhered to the top surface and the bottom surface of the EPS foam body, a left side sheet (12) and a right side sheet (15) respectively adhered to the left side surface and the right side surface of the EPS foam body, a small-arc sheet (13) adhered to the inner arc surface of the EPS foam body, and a large-arc sheet (14) adhered to the outer arc surface of the EPS foam body; the top sheet (11), the bottom sheet (16), the left side sheet (12), the right side sheet (15), the small-arc sheet (13), and the large-arc sheet (14) are connected to each other and enclose the EPS foam body (1) to form a composite structure.

2. An injection-molded hot-melt composite float according to claim 1, characterized in that The top sheet (11), the bottom sheet (16), the left side sheet (12), the right side sheet (15), the small-arc sheet (13), and the large-arc sheet (14) are all injection-molded sheets.

3. A thermoplastic injection molded floating body according to claim 1, wherein The EPS foam body (1) is in the shape of a fan-shaped block; the top sheet (11) and the bottom sheet (16) are both fan-shaped injection-molded sheets; and the left side sheet (12) and the right side sheet (15) are both rectangular injection-molded sheets.

4. The injection-molded hot-melt composite float of claim 1, wherein Each of the four outer edges of the top sheet (11) is provided with an over-arc groove (5) between the top end of the left side sheet, the top end of the right side sheet, the top end of the small-arc sheet, and the top end of the large-arc sheet; and each of the four outer edges of the bottom sheet (16) is provided with an over-arc groove (5) between the bottom end of the left side sheet, the bottom end of the right side sheet, the bottom end of the small-arc sheet, and the bottom end of the large-arc sheet.

5. The injection molded thermoplastic composite float of claim 1, wherein Each of the small-arc sheet (13), the left side sheet (12), the large-arc sheet (14), and the right side sheet (15) is provided with an over-arc edge (6) protruding outward.

6. The injection-molded hot-melt composite float of claim 1, wherein Each of the left side sheet (12) and the right side sheet (15) is provided with a mounting groove (2) whose axis is parallel to the axis of the fan-shaped block, and the two ends of the mounting groove (2) respectively penetrate the top sheet (11) and the bottom sheet (16).

7. The injection-molded hot-melt composite float of claim 1, wherein Each of the left side sheet (12), the right side sheet (15), and the large-arc sheet (14) is provided with a plurality of splicing holes (3) and a plurality of splicing grooves (4).

8. An injection-molded thermofused composite float according to claim 7, characterized in that The outer end of the left side sheet (12) adjacent to the large-arc sheet (14) is provided with a plurality of vertically arranged splicing holes (3) and splicing grooves (4); and the outer end of the right side sheet (15) adjacent to the large-arc sheet (14) is provided with a plurality of vertically arranged splicing holes (3) and splicing grooves (4).

9. An injection-molded thermofused composite float according to claim 7, wherein Each end of the large-arc sheet (14) is provided with a plurality of vertically arranged splicing grooves (4).

10. The injection molded thermoplastic composite float of claim 1, wherein The top sheet (11), the bottom sheet (16), the left side sheet (12), the right side sheet (15), the small-arc sheet (13), and the large-arc sheet (14) are connected to each other by being fused or welded.