Digital spraying anti-yellowing decorative panel bending process and panel thereof

Abstract

The present application provides a kind of digital spraying anti-yellowing finishing panel bending process and its panel, comprising the following steps: step one: using the solid wood board with thickness of 2.1-18.5mm as base layer;Step two: the softening treatment is carried out to 12-35 silk basswood veneer;Step three: the softening treated basswood veneer is pasted on the solid wood board;Step four: digital spraying finishing and elastic anti-yellowing UV paint are sprayed on the surface of basswood veneer;Step five: the solid wood board is bent at the corner with engraving removal of 2mm≤R 外 ≤10mm and 2mm≤R 内 ≤10mm;Step six: on the inner side of solid wood board, support board is set according to shape requirement, product panel is bent on bending equipment, back engraving is injected with fixing glue, until solidification molding is formed.The present application provides a kind of digital spraying anti-yellowing finishing panel bending process and its panel, which can be veneered first and then bent, realizes quick bending treatment, and is more convenient to use.

Description

Technical Field

[0001] This invention relates to the field of sheet metal bending technology, specifically to a digital spraying process for bending yellowing-resistant decorative sheets and the sheet material itself. Background Technology

[0002] The bending process of wood panels is an essential requirement for the application of digitally coated wood veneer panels in doors, walls, and cabinets, which are transitioning from flat to three-dimensional applications. Currently, there are no digitally coated wood veneer panels on the market that can be bent. Existing technology uses a wrapping process, which cannot be used for complex products or Great Wall-shaped panels. Furthermore, the color difference between the wrapping and the panel cannot be controlled, so improvements are needed.

[0003] In the prior art, a bending process for producing office furniture, disclosed in publication number "CN112706241A", includes the following steps: S1: Selecting high-quality raw materials, processing them into the required shape of office furniture boards, and then drawing markings on the areas to be bent using a pen; S2: Soaking the areas to be bent in a softening liquid for 5 minutes, removing the wood, and heating the board to 110-120 degrees Celsius using high-temperature steam for 10-15 minutes; S3: Placing the heated board on a bending machine while it is still hot, maintaining the machine temperature at 90-100 degrees Celsius, bending the board into a specific shape, holding the bent state for 10 minutes, and evenly applying a bending aid; S4: Heating the bent board again in high-temperature steam to 120-130 degrees Celsius for 8-10 minutes. This bending process for producing office furniture avoids the traditional one-time bending of wood, bending it into the required shape in three stages, thus preventing cracking of the wood surface caused by one-time bending, improving the yield of bent wood, reducing economic costs, and increasing enterprise revenue.

[0004] However, there are still some obvious drawbacks in its use: the above process requires three bending steps to obtain the desired shape, which is inefficient and will delay the progress of large-scale processing, making it inconvenient to use. Therefore, improvements are needed. Summary of the Invention

[0005] The purpose of this invention is to provide a digital spraying process for bending yellowing resistant decorative panels and the panels themselves, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A bending process for digitally sprayed, yellowing-resistant decorative panels includes the following steps:

[0008] Step 1: Use solid wood boards with a thickness of 2.1-18.5mm as the base layer;

[0009] Step 2: Soften the 12-35 mil linden veneer;

[0010] Step 3: Glue the softened linden veneer onto the solid wood board;

[0011] Step 4: Digitally spray a finish and a flexible, yellowing-resistant UV varnish onto the surface of the linden veneer;

[0012] Step 5: Bend the solid wood board at the corner with a radius of 2mm ≤ R 外 ≤10mm and 2mm≤R 内 Engraving removal of ≤10mm;

[0013] Step Six: On the inside of the solid wood board, set up a support board according to the shape requirements, bend the finished board at the outside corner on the bending machine, and pour fixing glue into the carved area on the back until it solidifies and takes shape.

[0014] Preferably, in step three, PUR adhesive is used to bond the linden veneer and the solid wood board.

[0015] Preferably, in step six, the thickness of the supporting plate is 8.5-18.5 mm.

[0016] Preferably, step six specifically includes:

[0017] (1) According to the shaping requirements, a support board is attached to the back of the solid wood board;

[0018] (2) Groove the back of the solid wood board;

[0019] (3) Apply glue to the groove. First apply glue to the corners of the glue application cavity, and then dry it quickly after applying the glue.

[0020] (4) A bottom sealing plate is embedded in the bottom of the glue application cavity and then glued and fixed.

[0021] (5) At least one shaping plate is embedded in the glue application cavity. The shape of the shaping plate is the same as the cross-sectional shape of the glue application cavity, and the shaping plate has multiple holes for the glue to pass through.

[0022] (6) Multiple shaping columns are embedded inside the glue application cavity;

[0023] (7) Pour glue into the glue-coating cavity until it is full, then smooth the top of the glue-coating cavity and clean up any excess glue.

[0024] (8) Dry until the glue solidifies.

[0025] Preferably, after step (8), the procedure further includes:

[0026] The surface of the finished boards is inspected, and residual adhesive is treated.

[0027] Preferably, the surface inspection of the finished board and the treatment of residual adhesive specifically include:

[0028] Prioritize key and non-key inspection areas. Classify the degree of residual adhesive into minor, moderate, and severe defects based on the amount of residual adhesive. For key inspection areas, minor, moderate, and severe defects need to be inspected, while for non-key inspection areas, only moderate and severe defects need to be inspected. Remove residual adhesive from the detected defective areas.

[0029] After cleaning, the key inspection areas are inspected for defects again. If defects are found, residual adhesive is cleaned again.

[0030] A type of board material, which is manufactured by the aforementioned digital spraying and yellowing-resistant decorative board bending process.

[0031] Compared with the prior art, the beneficial effects of the present invention are:

[0032] 1. This invention allows for surface bonding followed by bending, enabling mechanized mass production, effectively improving efficiency and shortening the construction period;

[0033] 2. Through the development of bending technology, this invention enables the direct bending of digitally sprayed wood veneer products, meeting the matching application needs of doors, walls, and cabinets with the same texture and color. It solves industry technical problems such as paint and wood veneer cracking and orange peel on the surface, and at the same time achieves long-term yellowing resistance without fading, making the finished boards more durable and realizing the extension application of boards with the same texture and color from flat surfaces to door, wall, and cabinet systems.

[0034] This invention provides a digital spraying process for bending yellowing-resistant decorative panels and the panels themselves, which allows for pre-coating followed by bending, enabling rapid bending and making them more convenient to use. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of an embodiment of the digital spraying anti-yellowing decorative panel of the present invention;

[0036] Figure 2 This is a schematic diagram of the bending process of the digital spraying anti-yellowing decorative panel of the present invention.

[0037] In the picture: 1. Solid wood board, 2. Linden veneer, 3. Supporting board. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Please see Figures 1 to 2 The present invention provides a technical solution:

[0040] A bending process for digitally sprayed, yellowing-resistant decorative panels includes the following steps:

[0041] Step 1: Use a solid wood board 1 with a thickness of 2.1-18.5mm as the base layer. This solid wood board 1 can be a single thick board or multiple layers of boards stacked together.

[0042] Step 2: Soften the 12-35 mil linden veneer 2 to make it fit better;

[0043] Step 3: Attach the softened linden veneer 2 to the solid wood board 1;

[0044] Step 4: Digitally spray a finish and elastic, yellowing-resistant UV paint onto the surface of the linden veneer 2, making the surface of the finished board more beautiful, yellowing-resistant, and durable;

[0045] Step 5: Bend the solid wood board 1 at the corner with a radius of 2mm ≤ R 外 ≤10mm and 2mm≤R 内 The engraving removal thickness is ≤10mm, and the specific bending radius can be flexibly selected according to actual needs;

[0046] Step 6: On the inside of solid wood board 1, set up support board 3 according to the shape requirements, bend the finished board at the outside corner on the bending machine, and inject fixing glue into the carved area on the back until it solidifies and takes shape.

[0047] In step three, use PUR adhesive to bond the basswood veneer 2 and the solid wood board 1.

[0048] In step six, the thickness of the support plate 3 is 8.5-18.5mm.

[0049] Step six specifically includes:

[0050] (1) According to the shaping requirements, a support board 3 is attached to the back of the solid wood board 1. The support board 3 has the function of supporting and shaping, which facilitates the subsequent bending process.

[0051] (2) Groove the back of solid wood board 1;

[0052] (3) Apply glue to the groove. First apply glue to the corners of the glue application cavity. Dry quickly after applying glue to avoid the problem that the sticky glue cannot effectively cover the corners and there are voids at the corners. The glue application cavity refers to the cavity formed between the assembled support board 3 and the solid wood board 1.

[0053] (4) A bottom sealing plate is embedded in the bottom of the glue application cavity and the bottom sealing plate is glued and fixed. This setting achieves one-sided sealing of the glue application cavity, avoiding the waste caused by glue overflow during subsequent glue injection operations.

[0054] (5) At least one shaping plate is embedded in the glue application cavity. The shape of the shaping plate is the same as the cross-sectional shape of the glue application cavity, and multiple holes for glue to pass through are provided on the shaping plate. The shaping plate can prevent the glue application cavity from being easily deformed by external pressure due to insufficient glue application, and can also prevent expansion deformation due to excessive glue application. Therefore, the shaping plate has the function of shaping the shape.

[0055] (6) Multiple shaping columns are embedded inside the glue coating cavity. The shaping columns can further limit the spacing between the inner cavities of the glue coating cavity, effectively ensuring that the shape of the glue coating cavity meets the predetermined requirements.

[0056] (7) Pour glue into the inside of the glue coating cavity until it is full. Then smooth the top of the glue coating cavity and clean up any excess glue to avoid affecting the appearance of the finished product.

[0057] (8) Dry until the glue solidifies.

[0058] After step 8, it also includes:

[0059] The surface of the finished boards is inspected, and residual adhesive is treated.

[0060] The surface of the finished board material is inspected, and residual adhesive is treated, specifically including:

[0061] Prioritize key and non-key inspection areas. Classify the degree of residual adhesive into minor, moderate, and severe defects based on the amount of residual adhesive. For key inspection areas, minor, moderate, and severe defects need to be inspected, while for non-key inspection areas, only moderate and severe defects need to be inspected. Remove residual adhesive from the detected defective areas.

[0062] After cleaning, the key inspection areas are inspected for defects again. If defects are found, residual adhesive is cleaned again.

[0063] A type of board material, which is manufactured by the aforementioned digital spraying anti-yellowing decorative board bending process.

[0064] Example 1:

[0065] A bending process for digitally sprayed, yellowing-resistant decorative panels includes the following steps:

[0066] Step 1: Use a 2.1mm thick solid wood board 1 as the base layer;

[0067] Step 2: Soften the 12-silver linden veneer 2;

[0068] Step 3: Attach the softened linden veneer 2 to the solid wood board 1. Specifically, use PUR glue to attach the linden veneer 2 and the solid wood board 1.

[0069] Step 4: Digitally spray a finish and an elastic, yellowing-resistant UV varnish onto the surface of the linden veneer 2;

[0070] Step 5: Bend the solid wood board 1 at the corner with a radius R. 外 =2mm and R 内 =2mm of engraving removal;

[0071] Step Six: On the inside of solid wood board 1, install support board 3 according to the shape requirements. The thickness of support board 3 is 8.5mm. Bend the finished board at the external corner using a bending machine. Pour fixing glue into the carved area on the back until it solidifies and takes shape. Specifically, this includes:

[0072] (1) According to the shaping requirements, a support board 3 is attached to the back of the solid wood board 1;

[0073] (2) Groove the back of solid wood board 1;

[0074] (3) Apply glue to the groove. First apply glue to the corners of the glue application cavity, and then dry it quickly after applying the glue.

[0075] (4) A bottom sealing plate is embedded in the bottom of the glue application cavity and then glued and fixed.

[0076] (5) At least one shaping plate is embedded in the glue application cavity. The shape of the shaping plate is the same as the cross-sectional shape of the glue application cavity, and the shaping plate has multiple holes for the glue to pass through.

[0077] (6) Multiple shaping columns are embedded inside the glue application cavity;

[0078] (7) Pour glue into the glue-coating cavity until it is full, then smooth the top of the glue-coating cavity and clean up any excess glue.

[0079] (8) Dry until the glue solidifies;

[0080] (9) Inspect the surface of the finished board and treat any residual adhesive, specifically including:

[0081] Prioritize key and non-key inspection areas. Classify the degree of residual adhesive into minor, moderate, and severe defects based on the amount of residual adhesive. For key inspection areas, minor, moderate, and severe defects need to be inspected, while for non-key inspection areas, only moderate and severe defects need to be inspected. Remove residual adhesive from the detected defective areas.

[0082] After cleaning, the key inspection areas are inspected for defects again. If defects are found, residual adhesive is cleaned again.

[0083] A type of board material, which is manufactured by the aforementioned digital spraying anti-yellowing decorative board bending process.

[0084] Example 2:

[0085] A bending process for digitally sprayed, yellowing-resistant decorative panels includes the following steps:

[0086] Step 1: Use 8mm thick solid wood board 1 as the base layer;

[0087] Step 2: Soften the 20-filament linden veneer 2;

[0088] Step 3: Attach the softened linden veneer 2 to the solid wood board 1. Specifically, use PUR glue to attach the linden veneer 2 and the solid wood board 1.

[0089] Step 4: Digitally spray a finish and an elastic, yellowing-resistant UV varnish onto the surface of the linden veneer 2;

[0090] Step 5: Bend the solid wood board 1 at the corner with a radius R. 外 =6mm and R 内 =6mm of engraving removal;

[0091] Step Six: On the inside of solid wood board 1, install support board 3 according to the shape requirements. The thickness of support board 3 is 14mm. Bend the finished board at the external corner using a bending machine. Pour fixing glue into the carved area on the back until it solidifies and takes shape. Specifically, this includes:

[0092] (1) According to the shaping requirements, a support board 3 is attached to the back of the solid wood board 1;

[0093] (2) Groove the back of solid wood board 1;

[0094] (3) Apply glue to the groove. First apply glue to the corners of the glue application cavity, and then dry it quickly after applying the glue.

[0095] (4) A bottom sealing plate is embedded in the bottom of the glue application cavity and then glued and fixed.

[0096] (5) At least one shaping plate is embedded in the glue application cavity. The shape of the shaping plate is the same as the cross-sectional shape of the glue application cavity, and the shaping plate has multiple holes for the glue to pass through.

[0097] (6) Multiple shaping columns are embedded inside the glue application cavity;

[0098] (7) Pour glue into the glue-coating cavity until it is full, then smooth the top of the glue-coating cavity and clean up any excess glue.

[0099] (8) Dry until the glue solidifies;

[0100] (9) Inspect the surface of the finished board and treat any residual adhesive, specifically including:

[0101] Prioritize key and non-key inspection areas. Classify the degree of residual adhesive into minor, moderate, and severe defects based on the amount of residual adhesive. For key inspection areas, minor, moderate, and severe defects need to be inspected, while for non-key inspection areas, only moderate and severe defects need to be inspected. Remove residual adhesive from the detected defective areas.

[0102] After cleaning, the key inspection areas are inspected for defects again. If defects are found, residual adhesive is cleaned again.

[0103] A type of board material, which is manufactured by the aforementioned digital spraying anti-yellowing decorative board bending process.

[0104] Example 3:

[0105] A bending process for digitally sprayed, yellowing-resistant decorative panels includes the following steps:

[0106] Step 1: Use a solid wood board 1 with a thickness of 18.5mm as the base layer;

[0107] Step 2: Soften the 35-micron linden veneer 2;

[0108] Step 3: Attach the softened linden veneer 2 to the solid wood board 1. Specifically, use PUR glue to attach the linden veneer 2 and the solid wood board 1.

[0109] Step 4: Digitally spray a finish and an elastic, yellowing-resistant UV varnish onto the surface of the linden veneer 2;

[0110] Step 5: Bend the solid wood board 1 at the corner with a radius R. 外 =10mm and R 内 =10mm of engraving removal;

[0111] Step Six: On the inside of solid wood board 1, install support board 3 according to the shape requirements. The thickness of support board 3 is 18.5mm. Bend the finished board at the external corner using a bending machine. Pour fixing glue into the carved area on the back until it solidifies and takes shape. Specifically, this includes:

[0112] (1) According to the shaping requirements, a support board 3 is attached to the back of the solid wood board 1;

[0113] (2) Groove the back of solid wood board 1;

[0114] (3) Apply glue to the groove. First apply glue to the corners of the glue application cavity, and then dry it quickly after applying the glue.

[0115] (4) A bottom sealing plate is embedded in the bottom of the glue application cavity and then glued and fixed.

[0116] (5) At least one shaping plate is embedded in the glue application cavity. The shape of the shaping plate is the same as the cross-sectional shape of the glue application cavity, and the shaping plate has multiple holes for the glue to pass through.

[0117] (6) Multiple shaping columns are embedded inside the glue application cavity;

[0118] (7) Pour glue into the glue-coating cavity until it is full, then smooth the top of the glue-coating cavity and clean up any excess glue.

[0119] (8) Dry until the glue solidifies;

[0120] (9) Inspect the surface of the finished board and treat any residual adhesive, specifically including:

[0121] Prioritize key and non-key inspection areas. Classify the degree of residual adhesive into minor, moderate, and severe defects based on the amount of residual adhesive. For key inspection areas, minor, moderate, and severe defects need to be inspected, while for non-key inspection areas, only moderate and severe defects need to be inspected. Remove residual adhesive from the detected defective areas.

[0122] After cleaning, the key inspection areas are inspected for defects again. If defects are found, residual adhesive is cleaned again.

[0123] A type of board material, which is manufactured by the aforementioned digital spraying anti-yellowing decorative board bending process.

[0124] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bending process for digitally sprayed, yellowing-resistant decorative panels, characterized in that, Includes the following steps: Step 1: Use solid wood boards with a thickness of 2.1-18.5mm as the base layer; Step 2: Soften the 12-35 mil linden veneer; Step 3: Glue the softened linden veneer onto the solid wood board; Step 4: Digitally spray a finish and a flexible, yellowing-resistant UV varnish onto the surface of the linden veneer; Step 5: Bend the solid wood board at the corner with a radius of 2mm ≤ R 外 ≤10mm and 2mm≤R 内 Engraving removal of ≤10mm; Step Six: On the inside of the solid wood board, set up a support board according to the shape requirements, bend the finished board at the outside corner on the bending machine, and pour fixing glue into the carved area on the back until it solidifies and takes shape. Step six specifically includes the following steps: (1) According to the shaping requirements, a supporting board is attached to the back of the solid wood board; (2) Groove the back of the solid wood board; (3) Apply glue to the groove. First apply glue to the corners of the glue application cavity, and then dry it quickly after applying the glue. (4) A bottom sealing plate is embedded in the bottom of the glue application cavity and then glued and fixed. (5) At least one shaping plate is embedded in the glue application cavity. The shape of the shaping plate is the same as the cross-sectional shape of the glue application cavity, and the shaping plate has multiple holes for the glue to pass through. (6) Multiple shaping columns are embedded inside the glue application cavity; (7) Pour glue into the glue-coating cavity until it is full, then smooth the top of the glue-coating cavity and clean up any excess glue. (8) Dry until the glue solidifies.

2. The bending process for digitally sprayed yellowing-resistant decorative panels according to claim 1, characterized in that: In step three, PUR adhesive is used to bond the basswood veneer and the solid wood board.

3. The bending process for digitally sprayed yellowing-resistant decorative panels according to claim 1, characterized in that: In step six, the thickness of the supporting plate is 8.5-18.5mm.

4. The bending process for digitally sprayed yellowing-resistant decorative panels according to claim 1, characterized in that: Following step (8), the following is also included: The surface of the finished boards is inspected, and residual adhesive is treated.

5. The bending process for digitally sprayed yellowing-resistant decorative panels according to claim 4, characterized in that: The surface inspection of the finished board material and the treatment of residual adhesive specifically include: Prioritize key and non-key inspection areas. Classify the degree of residual adhesive into minor, moderate, and severe defects based on the amount of residual adhesive. For key inspection areas, minor, moderate, and severe defects need to be inspected, while for non-key inspection areas, only moderate and severe defects need to be inspected. Remove residual adhesive from the detected defective areas. After cleaning, the key inspection areas are inspected for defects again. If defects are found, residual adhesive is cleaned again.

6. A type of board material, characterized in that: The board is made by the digital spraying yellowing resistant decorative board bending process described in any one of claims 1-5.

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