Composite arc edge corner three amine plate

By using the design of MDF lines and exposed black lines, the problem of inconsistent color caused by the stretching of the veneer paper during the processing of composite rounded corner melamine boards is solved, achieving a uniform color effect, improving product aesthetics and processing efficiency, simplifying processing difficulty, reducing the use of adhesives, and improving environmental friendliness.

CN224928647UActive Publication Date: 2026-11-03CHONGQING HENGDUOLI FURNITURE CO LTD
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Patent Information

Application Number
CN202521865087.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-01
Publication Date
2026-11-03
Estimated Expiration
2035-09-01

AI Technical Summary

Technical Problem

Existing composite rounded corner melamine boards are difficult to achieve the same color effect during processing. The stretching of the decorative paper leads to inconsistent colors, and the pressing equipment cannot apply pressure evenly, resulting in visual color difference and blistering and delamination.

Method used

The design employs MDF lines and exposed black lines, with the MDF lines working in conjunction with the composite groove. The exposed black lines are used for reinforcement and color matching, and combined with the inserts and positioning expansion strips to enhance the firmness, avoid stretching of the veneer paper and color difference, and transform color difference into a design element through the details of the shape.

Benefits of technology

It achieves the same color effect for the rounded corners of the paint-free board, improves the product's aesthetics and simplifies the processing, reduces the risk of tearing due to stretching of the decorative paper, simplifies the processing difficulty, reduces the use of adhesives, and enhances environmental friendliness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to indoor decoration technical field, concretely is a kind of composite arc edge corner three amine board, comprising: paint-free three amine board body, one end of the paint-free three amine board body is provided with composite groove;Density board line, the density board line is located in the inside of composite groove;Exposing bottom black line, exposing bottom black line is located in the lower end of paint-free three amine board body side, a corner at the upper end of composite groove is a circle center angle 90 degrees, two radius length equal sector.The utility model changes the arc same color problem into modeling details by splitting modeling, local repair and design defect conversion, without painting the whole paint-free board, but cleverly utilize substrate leak bottom and line modeling, realize the feasibility of arc process.
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Description

Technical Field

[0001] This utility model relates to the field of interior decoration technology, specifically to a composite rounded corner melamine board. Background Technology

[0002] In the fields of interior decoration and furniture manufacturing, melamine boards are widely used due to their excellent wear resistance, high temperature resistance, and ease of cleaning. Among them, composite rounded corner melamine boards, with their unique rounded design, provide softer and safer edges, and are widely used in furniture manufacturing and interior decoration.

[0003] However, existing composite melamine boards with rounded edges have a common problem: achieving a consistent color effect when using melamine boards to create rounded edges. This is mainly due to the following two limitations:

[0004] First, the melamine-impregnated paper (fabricating paper) on the surface of the melamine-faced board is bonded to the substrate under high temperature and pressure, which limits its toughness. When the melamine-faced board is processed into an arc shape, the bending of the board will stretch the fabricating paper. This stretching can easily lead to tearing and wrinkling of the fabricating paper, thereby compromising the integrity of the color and the consistency of the texture. In addition, the fabricating paper becomes thinner after stretching, and the color may become lighter due to problems such as "stretching and light transmission," making it impossible to maintain the same color as the unstretched areas.

[0005] Secondly, the conventional production process for melamine-faced boards is flat-plate lamination, while the processing of rounded corners is considered irregular shape processing. Existing lamination equipment, such as multi-layer presses, is designed for flat-plate lamination and cannot apply uniform pressure to rounded surfaces, resulting in loose adhesion between the veneer paper and the substrate in the rounded areas. During use, these areas are prone to bulging and delamination, causing visual color differences. Furthermore, during the processing of rounded surfaces, the force and adhesion of the veneer paper at the corners and curved transitions are difficult to control precisely, further increasing the difficulty of ensuring color consistency. Therefore, to solve this problem, we propose a composite melamine-faced board for rounded corners. Utility Model Content

[0006] The purpose of this invention is to provide a composite rounded corner melamine board that achieves the same color effect for the rounded corners of paint-free boards, thereby improving the aesthetics and market competitiveness of the product. It solves the problem that existing composite rounded corner melamine boards, i.e., when using paint-free boards to make rounded corners, are difficult to achieve the same color effect.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a composite rounded corner melamine board, comprising:

[0008] A paint-free melamine board body, wherein a composite groove is provided at one end of the paint-free melamine board body;

[0009] MDF strips, the MDF strips being located inside the composite groove;

[0010] The exposed black line is located at the lower end of one side of the paint-free melamine board body.

[0011] Preferably, one corner at the upper end of the composite groove is a sector with a central angle of 90 degrees and two equal radii.

[0012] Preferably, the left end of the MDF line is a rounded corner, and the rounded corner MDF line is adapted to the composite groove.

[0013] Preferably, the height of the exposed black line is 0.5mm.

[0014] Preferably, both ends of one side of the inner wall of the composite groove are provided with mating grooves, and both ends of the right side of the MDF line are provided with interlocking plates corresponding to the mating grooves, and the interlocking plates are adapted to the mating grooves.

[0015] Preferably, the top of the insertion plate is provided with a positioning expansion strip, the right end of the positioning expansion strip is inclined, and the left end of the positioning expansion strip is arc-shaped.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] Compared to traditional paint-free boards where stretching the decorative paper disrupts color consistency, this invention addresses the challenge of achieving uniform color in curved shapes by disassembling the board, combining local repairs, and transforming design defects. This transforms the problem of achieving uniform color in curved shapes into design details, eliminating the need to paint the entire paint-free board. Instead, it cleverly utilizes exposed substrate and linear design to make the curved shape process feasible. Attached Figure Description

[0018] Figure 1 This is a first-view structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the body structure of the paint-free melamine board of this utility model;

[0020] Figure 3 This is a schematic diagram of the linear structure of the MDF board of this utility model;

[0021] Figure 4 This is a schematic diagram of the insert plate structure of this utility model.

[0022] In the diagram: 1. Paint-free melamine board body; 101. Composite groove; 102. Butt joint groove; 2. MDF lines; 201. Insertion plate; 202. Positioning expansion strip; 3. Exposed black outline. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] The paint-free melamine board body 1, composite groove 101, docking groove 102, MDF line 2, interlocking plate 201, positioning expansion strip 202 and exposed black line 3 of this application are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0025] Example 1

[0026] Please see Figures 1-4 As shown, this utility model provides a technical solution: a composite rounded corner melamine board, comprising:

[0027] The paint-free melamine board body 1 has a composite groove 101 at one end;

[0028] MDF line 2, MDF line 2 is located inside the composite groove 101;

[0029] Exposed black line 3, located at the lower end of one side of the melamine board body 1.

[0030] One corner at the upper end of the composite trough 101 is a sector with a central angle of 90 degrees and two equal radii. The left end of the MDF line 2 is a rounded corner, and the rounded corner MDF line 2 is compatible with the composite trough 101. The height of the exposed black line 3 is 0.5mm.

[0031] This technical solution involves setting up a melamine board body 1, MDF strips 2, and exposed black lines 3. After the MDF strips 2 are fed into the composite tank 101, ensuring their stability during composite bonding, exposed black lines 3 with a height of 0.5mm are applied to the lower end of the melamine board body 1. This allows the melamine board to be used with the MDF strips 2 to create a visible curved decorative effect. The inherent flaws of directly bending the melamine board (such as surface stretching and color difference) are transformed into a design using strips and exposed black lines on the substrate. Furthermore, the curved shape is borne by the MDF strips 2, while the melamine board body 1 only serves as a basic flat surface, avoiding large-area defects on the melamine board body 1. The process involves bending and stretching, while the exposed black line 3 actively exposes a very small amount of substrate. The dark color (blackening) weakens the abruptness of the "exposed substrate," turning the color difference defect of the arc into a design detail. Visually, it forms a unique line layer, reducing the strict requirements for the same color of the arc of the melamine board. At the same time, the medium density board (MDF) itself is easy to cut, carve, and bend (easier to control than the overall bending of the melamine board). Using MDF line 2 to make the arc instead of directly bending the melamine board reduces the risk of stretching and tearing of the decorative paper. Furthermore, by adding black color, the color difference problem of the arc processing of the melamine board is avoided, making the arc shape easier to achieve and simplifying the processing difficulty.

[0032] Example 2

[0033] Based on Embodiment 1, this utility model is as follows: Figures 1-4 As shown, the inner wall of the composite tank 101 has two ends of a docking groove 102, and the two ends of the right side of the MDF line 2 are provided with a mating plate 201 corresponding to the docking groove 102, and the mating plate 201 is adapted to the docking groove 102.

[0034] This technical solution: By setting the insert plate 201 and the docking groove 102, when the MDF strip 2 enters the composite groove 101, it will drive the insert plate 201 into the docking groove 102, thereby ensuring the firmness of the MDF strip 2 and the paint-free melamine board body 1 after bonding, and avoiding the occurrence of adhesive bonding. While ensuring the external aesthetics, it reduces the use of adhesives, making this melamine board more environmentally friendly.

[0035] Example 3

[0036] Based on Embodiment 2, this utility model is as follows: Figures 1-4 As shown, a positioning expansion strip 202 is provided on the top of the insert plate 201. The right end of the positioning expansion strip 202 is inclined and the left end of the positioning expansion strip 202 is arc-shaped.

[0037] This technical solution: By setting the positioning expansion strip 202, the firmness of the MDF line 2 and the paint-free melamine board body 1 after being combined can be strengthened, and the positioning expansion strip 202 will not hinder the assembly and disassembly of the positioning expansion strip 202.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A composite melamine board with rounded corners, characterized in that, include: The paint-free melamine board body (1) has a composite groove (101) at one end; MDF line (2), the MDF line (2) is located inside the composite groove (101); The exposed black line (3) is located at the lower end of one side of the paint-free melamine board body (1).

2. The composite rounded corner melamine board according to claim 1, characterized in that: One corner at the upper end of the composite groove (101) is a sector with a central angle of 90 degrees and two equal radii.

3. The composite rounded corner melamine board according to claim 1, characterized in that: The left end of the MDF line (2) is a rounded corner, and the rounded corner MDF line (2) is compatible with the composite groove (101).

4. The composite rounded corner melamine board according to claim 1, characterized in that: The height of the exposed black line (3) is 0.5 mm.

5. A composite rounded corner melamine board according to claim 1, characterized in that: The inner wall of the composite groove (101) has two ends of a docking groove (102) on one side, and the two ends of the right side of the density board line (2) are provided with a mating plate (201) corresponding to the docking groove (102), and the mating plate (201) is adapted to the docking groove (102).

6. A composite rounded corner melamine board according to claim 5, characterized in that: The top of the insertion plate (201) is provided with a positioning expansion strip (202), the right end of the positioning expansion strip (202) is inclined, and the left end of the positioning expansion strip (202) is arc-shaped.