A bathroom cabinet panel structure and a processing method
By using a core board and wood-plastic composite board cladding structure in the bathroom cabinet panels, and utilizing thickness limiters and molding installation holes, the problem of water intrusion caused by gaps in the wood panels is solved, achieving waterproof and moisture-proof effects and preventing panel deformation and mold growth.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- KAIPING WEISHI SANITARY WARE CO LTD
- Filing Date
- 2024-06-12
- Publication Date
- 2026-07-21
AI Technical Summary
Gaps can easily appear between the edge strips and the wood panels of existing bathroom cabinets, as well as between the film and the wood panels, allowing water to enter and causing problems such as board deformation and mold growth.
It adopts a core board and wood-plastic composite board covering structure, with a thickness limiter installed in the reserved installation holes, and the connectors are installed in the molded installation holes. The moisture-proof and waterproof properties of the wood-plastic composite board are used to prevent water from contacting the core board.
It effectively prevents water from entering the core board, avoids board deformation and mold growth, and improves the waterproof performance of bathroom cabinet boards.
Smart Images

Figure CN118664692B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of bathroom products, and more particularly to a bathroom cabinet panel structure and processing method. Background Technology
[0002] Bathroom vanities are an essential bathroom product. The cabinet body and doors are generally made of wood. Currently, the wood panels in bathroom vanities are mainly protected by edge banding or by attaching a film to the front and sides for waterproofing. However, gaps can easily appear between the edge banding and the wood panel, or between the film and the wood panel, allowing water to seep into the wood panel. In addition, holes can be drilled directly in the wood panel where the connectors are installed, allowing water to easily enter the wood panel through the connector installation locations. Both of these problems can easily cause the panels to warp and mold. Summary of the Invention
[0003] The purpose of this invention is to overcome the above-mentioned problems existing in the prior art, and to provide a bathroom cabinet panel structure, as well as a processing method for manufacturing the bathroom cabinet panel.
[0004] To achieve the above-mentioned technical objectives and effects, the present invention is implemented through the following technical solution:
[0005] A bathroom cabinet panel structure includes a core board and a wood-plastic composite (WPC) cladding layer. The core board has a reserved mounting hole for mounting a connector. A thickness limiter for limiting the thickness of the WPC cladding layer is installed in the reserved mounting hole. The core board is completely covered by the WPC cladding layer. The head of the thickness limiter is completely covered by the WPC cladding layer, and the tail end of the thickness limiter is exposed outside the WPC cladding layer. A shaped mounting hole is formed in the WPC cladding layer to fit into the reserved mounting hole.
[0006] The thickness limiter is divided into a straight thickness limiter and a forked thickness limiter. The straight thickness limiter includes, from beginning to end, a first tip for inserting into the core board, a circular limiting plate for abutting against the core board, and a first limiting rod for abutting against the injection mold for manufacturing the wood-plastic composite board covering layer. The first tip, the limiting plate, and the first limiting rod are integrally formed, and the central axis of the first tip, the central axis of the limiting plate, and the central axis of the first limiting rod are located on the same straight line. The forked thickness limiter includes, from beginning to end, a second tip for inserting into the core board, a U-shaped fork for locking onto the first limiting rod, and a second limiting rod for abutting against the injection mold for manufacturing the wood-plastic composite board covering layer. The second tip, the U-shaped fork, and the second limiting rod are integrally formed. The first limiting rod is provided with a positioning groove, and the U-shaped fork is locked in the positioning groove.
[0007] The thickness of the limiting plate is 0.5 to 0.8 mm.
[0008] Wherein, the diameter of the reserved mounting hole is 1-3 mm larger than the diameter of the mounting part of the connector, and the depth of the reserved mounting hole is 0-2 mm larger than the length of the mounting part of the connector; the diameter of the formed mounting hole is equal to the diameter of the mounting part of the connector, and the depth of the formed mounting hole is equal to the length of the mounting part of the connector.
[0009] The thickness of the wood-plastic composite board cladding layer is 1 to 3 mm.
[0010] A method for processing bathroom cabinet panels, used to manufacture the aforementioned bathroom cabinet panel structure, includes the following steps:
[0011] S1. Cut the sheet wood into core boards by subtracting the thickness of the wood-plastic cladding layer on the side according to the required bathroom cabinet board size.
[0012] S2. Drill pre-drilled mounting holes on the core board for installing connectors;
[0013] S3. Insert the thickness limiter into the reserved mounting hole using the thickness limiter mounting rod;
[0014] S4. Install the core plate with the thickness limiter into the injection mold;
[0015] S5. The molten wood-plastic composite board raw material is squeezed into the injection mold until the molding cavity of the injection mold is filled. After the wood-plastic composite board raw material cools, the core board, the thickness limiter and the wood-plastic composite board covering layer are bonded together to form the bathroom cabinet board blank.
[0016] S6. Remove the bathroom cabinet board blank from the injection mold and perform cutting processing on the surface of the bathroom cabinet board blank;
[0017] S7. Polish and grind the surface of the bathroom cabinet board blank to obtain the bathroom cabinet board.
[0018] In step S1, the sheet-like wood board is one of plywood, particleboard, or MDF.
[0019] In step S6, the cutting process on the surface of the bathroom cabinet board blank includes: removing the excess wood-plastic composite board material and thickness limiter that were filled in the reserved installation hole through cutting process, so that the wood-plastic composite board covering layer is processed to form a shaped installation hole that fits into the reserved installation hole.
[0020] In step S6, the cutting process on the surface of the bathroom cabinet board blank also includes: cutting and processing the front side of the bathroom cabinet board blank to form a pattern.
[0021] Step S7 further includes: printing on the surface of the bathroom cabinet board after polishing and grinding.
[0022] The beneficial effects of this invention are: the core board is completely covered in the wood-plastic composite board covering layer, and a molding installation hole is formed on the wood-plastic composite board covering layer. The mounting part of the connector is installed in the molding installation hole. By utilizing the good moisture-proof and waterproof properties of the wood-plastic composite board covering layer, the core board can be prevented from deforming or becoming moldy when it comes into contact with water. Attached Figure Description
[0023] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:
[0024] Figure 1 This is a schematic diagram of the core board in front of the installation linear thickness limiter of a bathroom cabinet board structure in this invention;
[0025] Figure 2 This is a schematic diagram of the core board structure after the installation of the linear thickness limiter in a bathroom cabinet panel structure according to the present invention;
[0026] Figure 3 This is a schematic diagram of the structure of a bathroom cabinet board blank according to the present invention;
[0027] Figure 4 This is a schematic diagram of the overall structure of a bathroom cabinet panel product according to the present invention.
[0028] Figure 5 This is a partial structural diagram of a finished bathroom cabinet panel according to the present invention.
[0029] Figure 6 This is a schematic diagram of the core board in front of the installation straight-line thickness limiter in another type of bathroom cabinet board structure according to the present invention;
[0030] Figure 7 This is a schematic diagram of the core board structure after the installation of the linear thickness limiter in another bathroom cabinet board structure according to the present invention;
[0031] Figure 8 This is a schematic diagram of the structure of a bathroom cabinet board blank, representing another type of bathroom cabinet board structure in this invention.
[0032] Figure 9 This is a schematic diagram of the overall structure of a finished bathroom cabinet panel with another type of panel structure according to the present invention.
[0033] Figure 10 This is a partial structural diagram of a finished bathroom cabinet panel with another type of panel structure according to the present invention.
[0034] Figure 11 This is a schematic diagram of the linear thickness limiter in this invention;
[0035] Figure 12 This is a schematic diagram of the bifurcated thickness limiter in this invention;
[0036] Figure 13 This is a schematic diagram of the structure of the combination of the linear thickness limiter and the bifurcation thickness limiter in this invention;
[0037] Figure 14 This is a schematic diagram of the injection mold in the open state in this invention;
[0038] The following are the labels in the diagram: Core board 1, Wood-plastic composite board covering layer 2, Reserved mounting hole 3, Molded mounting hole 4, Straight thickness limiter 5, First tip 51, Limiting plate 52, First limiting rod 53, Positioning slot 54, Forked thickness limiter 6, Second tip 61, U-shaped fork 62, Second limiting rod 63, Injection mold 7, Lower template 71, Upper template 72, Length fixed side template 73, Stainless steel strip 74, Stainless steel strip support plate 75, Corner template 76, Injection port 77. Detailed Implementation
[0039] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0040] like Figures 1 to 13 As shown, a bathroom cabinet panel structure includes a core board 1 and a wood-plastic composite (WPC) cladding layer 2. The core board 1 has a reserved mounting hole 3 for mounting a connector. A thickness limiter for limiting the thickness of the WPC cladding layer is installed in the reserved mounting hole 3. The core board 1 is completely covered in the WPC cladding layer 2. The head of the thickness limiter is completely covered in the WPC cladding layer 2, while the tail end of the thickness limiter is exposed outside the WPC cladding layer 2. A shaped mounting hole 4 is formed in the WPC cladding layer 2, which fits into the reserved mounting hole.
[0041] The core board is completely covered in the wood-plastic composite board covering layer, and the forming installation holes are processed in the wood-plastic composite board covering layer. The mounting part of the connector is installed in the forming installation hole. Utilizing the good moisture-proof and waterproof properties of the wood-plastic composite board covering layer, it can prevent the core board from deforming or becoming moldy when it comes into contact with water.
[0042] The thickness limiter is divided into a straight thickness limiter 5 and a forked thickness limiter 6. The straight thickness limiter 5 includes, from beginning to end, a first tip 51 for inserting into the core board 1, a circular limiting plate 52 for abutting against the core board 1, and a first limiting rod 53 for abutting against the injection mold 7 for manufacturing the wood-plastic composite covering layer 2. The first tip 51, the limiting plate 52, and the first limiting rod 53 are integrally formed, and the central axis of the first tip 51, the central axis of the limiting plate 52, and the central axis of the first limiting rod 52 are located on the same straight line. The forked thickness limiter 6 includes, from beginning to end, a second tip 61 for inserting into the core board 1, a U-shaped fork 62 for locking onto the first limiting rod 53, and a second limiting rod 63 for abutting against the injection mold 7 for manufacturing the wood-plastic composite covering layer 2. The second tip 61, the U-shaped fork 62, and the second limiting rod 63 are integrally formed. A positioning groove 54 is provided on the first limiting rod 63, and the U-shaped fork 62 is locked in the positioning groove 54.
[0043] The thickness of the limiting plate 52 is 0.5 to 0.8 mm, and it is necessary to ensure that the limiting plate is completely covered by the wood-plastic composite board covering layer.
[0044] The diameter of the reserved mounting hole 3 is 1-3 mm larger than the diameter of the mounting part of the connector, and the depth of the reserved mounting hole 3 is 0-2 mm larger than the length of the mounting part of the connector; the diameter of the formed mounting hole 4 is equal to the diameter of the mounting part of the connector, and the depth of the formed mounting hole 4 is equal to the length of the mounting part of the connector.
[0045] The thickness of the wood-plastic composite board cladding layer 2 is 1-3mm, and the specific thickness can be freely selected according to whether or not to cut and process the surface of the wood-plastic composite board cladding layer to form a pattern.
[0046] The connector includes a hinge, a three-in-one connector, and a screw. The mounting part of the connector includes the hinge cup of the hinge, the eccentric wheel of the three-in-one connector, the embedded nut of the three-in-one connector, the screw connecting rod of the three-in-one connector, and the threaded rod of the screw. A linear thickness limiter is installed in the reserved mounting hole 3 for installing the hinge cup, the eccentric wheel of the three-in-one connector, the embedded nut of the three-in-one connector, and the threaded rod of the screw; a forked thickness limiter 6 is installed in the reserved mounting hole 3 for installing the screw connecting rod of the three-in-one connector.
[0047] A method for processing bathroom cabinet panels, used to manufacture the aforementioned bathroom cabinet panel structure, includes the following steps:
[0048] S1. Cut the sheet wood into core board 1 after subtracting the thickness of the wood-plastic cladding layer 2 from the required bathroom cabinet board size.
[0049] S2. Drill reserved mounting holes 3 on the core board 1 for installing the connectors;
[0050] S3. Insert the thickness limiter into the reserved mounting hole 3 using the thickness limiter mounting rod;
[0051] S4. Install the core plate 1 with the thickness limiter into the injection mold 7;
[0052] S5. The molten wood-plastic composite board raw material is squeezed into the injection mold 7 until the wood-plastic composite board raw material fills the molding cavity of the injection mold 7. After the wood-plastic composite board raw material cools, the core board, the thickness limiter and the wood-plastic composite board covering layer are bonded together to form the bathroom cabinet board blank.
[0053] S6. Remove the bathroom cabinet board blank from the injection mold 7 and perform cutting processing on the surface of the bathroom cabinet board blank;
[0054] S7. Polish and grind the surface of the bathroom cabinet board blank to obtain the finished bathroom cabinet board.
[0055] The sheet-like wood panels in step S1 are one of plywood, particleboard, or MDF.
[0056] Step S2 also includes cutting the surface of the core board to form several cross-shaped scratches to improve the adhesion between the core board and the wood-plastic composite cladding layer.
[0057] In step S3, the thickness limiter mounting rod is a cylinder with the same diameter as the reserved mounting hole. The outer edge corner of the head of the thickness limiter mounting rod is rounded, and a slot for inserting the limiting rod is provided at the center of the head of the thickness limiter mounting rod.
[0058] The injection mold 7 in step S4 includes a planar lower mold plate 71, a planar upper mold plate 72, two symmetrical elongated fixed-length side mold plates 73, two symmetrical stainless steel strips 74, multiple stainless steel strip support plates 75, and four corner mold plates 76. The fixed-length side mold plates 73, stainless steel strips 74, stainless steel strip support plates 75, and corner mold plates 76 are sandwiched between the lower mold plate 71 and the upper mold plate 72. The lower mold plate 71, upper mold plate 72, fixed-length side mold plates 73, stainless steel strips 74, and corner mold plates 76 together enclose the molding cavity. One side of the corner mold plate 76 is an arc surface, and the other two sides are mutually perpendicular planes. One side plane of the corner mold plate 76 abuts against the fixed-length side mold plate 73. The lower mold plate 71 and the upper mold plate 72 are respectively provided with an injection port 77 that communicates with the molding cavity.
[0059] Step S6 involves cutting the surface of the bathroom cabinet board blank, which includes removing excess wood-plastic composite material and thickness limiter that were filled in the reserved installation holes, thereby forming a shaped installation hole in the wood-plastic composite covering layer that fits into the reserved installation hole.
[0060] Step S6, which involves cutting the surface of the bathroom cabinet board blank, also includes cutting and forming patterns on the front side of the bathroom cabinet board blank.
[0061] Step S7 also includes: printing on the finished surface of the bathroom cabinet board after polishing and grinding.
[0062] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.
Claims
1. A bathroom cabinet panel structure, characterized in that: The device includes a core board and a wood-plastic composite (WPC) cladding layer. The core board has pre-drilled mounting holes for mounting connectors. A thickness limiter for limiting the thickness of the WPC cladding layer is installed in these pre-drilled mounting holes. The core board is completely encased in the WPC cladding layer. The head of the thickness limiter is completely encased in the WPC cladding layer, while the tail end of the thickness limiter is exposed outside the WPC cladding layer. A shaped mounting hole is machined into the WPC cladding layer and fits into the pre-drilled mounting hole. The thickness limiter is divided into a straight type and a forked type. The straight type thickness limiter includes, from head to tail, a first tip for inserting into the core board, a... A circular limiting plate for contacting the core board, and a first limiting rod for contacting the injection mold for manufacturing the wood-plastic composite board covering layer. The first tip, the limiting plate, and the first limiting rod are integrally formed, and the central axis of the first tip, the central axis of the limiting plate, and the central axis of the first limiting rod are located on the same straight line. The forked thickness limiter includes, from beginning to end, a second tip for inserting into the core board, a U-shaped fork for locking onto the first limiting rod, and a second limiting rod for contacting the injection mold for manufacturing the wood-plastic composite board covering layer. The second tip, the U-shaped fork, and the second limiting rod are integrally formed. A positioning groove is provided on the first limiting rod, and the U-shaped fork is locked in the positioning groove.
2. The bathroom cabinet panel structure according to claim 1, characterized in that: The thickness of the limiting plate is 0.5~0.8mm.
3. The bathroom cabinet panel structure according to claim 1, characterized in that: The diameter of the reserved mounting hole is 1-3 mm larger than the diameter of the mounting part of the connector, and the depth of the reserved mounting hole is 0-2 mm larger than the length of the mounting part of the connector; the diameter of the formed mounting hole is equal to the diameter of the mounting part of the connector, and the depth of the formed mounting hole is equal to the length of the mounting part of the connector.
4. The bathroom cabinet panel structure according to claim 1, characterized in that: The thickness of the wood-plastic composite board coating is 1~3mm.
5. A method for processing bathroom cabinet panels, used to manufacture the bathroom cabinet panel structure according to any one of claims 1 to 4, characterized in that, Includes the following steps: S1. Cut the sheet wood into core boards by subtracting the thickness of the wood-plastic cladding layer on the side according to the required bathroom cabinet board size. S2. Drill pre-drilled mounting holes on the core board for installing connectors; S3. Insert the thickness limiter into the reserved mounting hole using the thickness limiter mounting rod; S4. Install the core plate with the thickness limiter into the injection mold; S5. The molten wood-plastic composite board raw material is squeezed into the injection mold until the molding cavity of the injection mold is filled. After the wood-plastic composite board raw material cools, the core board, the thickness limiter and the wood-plastic composite board covering layer are bonded together to form the bathroom cabinet board blank. S6. Remove the bathroom cabinet board blank from the injection mold and perform cutting processing on the surface of the bathroom cabinet board blank; S7. Polish and grind the surface of the bathroom cabinet board blank to obtain the bathroom cabinet board.
6. The bathroom cabinet board processing method according to claim 5, characterized in that: The sheet-like wood panels in step S1 are one of plywood, particleboard, or MDF.
7. The bathroom cabinet board processing method according to claim 5, characterized in that, The cutting process of the bathroom cabinet board blank surface in step S6 includes: removing the excess wood-plastic board raw material and thickness limiter that filled the reserved installation hole through cutting process, so that the wood-plastic board covering layer is processed to form a shaped installation hole, and the shaped installation hole is fitted into the reserved installation hole.
8. The method for processing bathroom cabinet panels according to claim 5, characterized in that, Step S6, which involves cutting the surface of the bathroom cabinet board blank, also includes cutting and forming patterns on the front side of the bathroom cabinet board blank.
9. The method for processing bathroom cabinet panels according to claim 5, characterized in that, Step S7 further includes: printing on the surface of the bathroom cabinet board after polishing and grinding.