Spliced cabinet door manufacturing process and hot press forming die

Abstract

The invention discloses a spliced cabinet door manufacturing process and a hot press forming mold, the spliced cabinet door manufacturing process comprises manufacturing of an outer decorative plate, manufacturing of an inner decorative plate and manufacturing of a cabinet door, and the cabinet door manufacturing step comprises the steps that S1, an inner lining plate of the outer decorative plate is placed in a hot press in a mode that the inner lining plate faces upwards; s2, the multiple battens are sequentially placed on the surface of the lining plate in a double-face gluing mode; s3, the interior trim panel is flatly placed on the other face of the batten; s4, performing hot-press bonding on the interior trim panel, the battens and the exterior trim panel through a hot press to form a cabinet door blank; s5, the four edges of the cabinet door blank are cut, and the cabinet door blank with the needed size is formed; s6, polishing the surface of the wood grain board of the outer decorative board, wherein the residual release paper on the surface can be removed during polishing; and S7, the four edges of the cabinet door blank are sealed through edge strips, and the cabinet door is formed. The wood grain strips are spliced to form the wood grain plate, the wood grain plate is subjected to hot-pressing bending, the outer decoration plate of the cabinet door is manufactured, the outer decoration plate is made of solid wood, and the quality and the texture of the outer decoration plate are better than those of a cabinet door made of wood grain leather.

Description

Technical Field

[0001] This invention relates to wooden cabinet doors, and more specifically, to a manufacturing process for spliced ​​cabinet doors and a hot-pressing molding die. Background Technology

[0002] Cabinet doors are an integral part of a cabinet, and their texture directly affects the overall appearance of the cabinet. Some cabinet doors use different wood grain patterns in a stepped splicing style to achieve a staggered aesthetic. However, to make corner (L-shaped) cabinet doors in this style, it is only possible to apply a 0.5 mm thick wood grain veneer to the surface of the wooden cabinet door. Because the wood grain veneer is thin, it is easily scratched during use, which can lead to the underlying material showing through. Furthermore, the texture of the wood grain veneer is inferior to that of the wood grain board, which affects the overall texture of the cabinet door. Therefore, there is an urgent need to improve this aspect. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a splicing cabinet door manufacturing process and hot pressing molding mold. By splicing wood grain strips to form a wood grain board, and hot pressing and bending the wood grain board, the outer panel of the cabinet door is made. The outer panel is made of solid wood and its quality and texture are superior to those of cabinet doors made of wood grain veneer.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a splicing cabinet door manufacturing process, including the manufacture of an outer decorative panel;

[0005] The steps for making exterior trim panels include:

[0006] S1. Lay release paper inside the first cavity of the first mold;

[0007] S2. Apply adhesive to the side of a wood grain strip and place it into the first mold cavity, with the side of the wood grain strip away from the adhesive close to one side of the first mold cavity;

[0008] S3. Apply adhesive to one side of another wood grain strip and place it into the first mold cavity. The side of the wood grain strip away from the side with adhesive applied is close to the side of the previous wood grain strip with adhesive applied.

[0009] S4. Repeat step S3, place the required number of wood grain strips side by side in the first mold cavity, and connect adjacent wood grain strips with adhesive to form a wood grain board;

[0010] S5. Apply a layer of adhesive to the surface of the wood grain board;

[0011] S6. Place the inner lining board flat on the surface of the wood grain board coated with adhesive.

[0012] S7. The hot press drives the first moving mold to move downward and abut against the upper surface of the inner lining board, hot pressing and bonding the wood grain strips to the wood grain strips and the wood grain board to the inner lining board to form a flat outer panel.

[0013] S8. Remove the flat exterior panel and peel off the release paper pasted on the surface of the wood grain panel;

[0014] S9. Place the flat outer trim panel with the wood grain side down in the second cavity of the second mold;

[0015] S10. The hot press drives the second moving mold to move downwards to abut and squeeze the upper surface of the interior trim panel. The second moving mold hot presses the flat exterior trim panel to make it bend and deform, forming a corner-shaped exterior trim panel that is consistent with the contour of the second mold cavity.

[0016] Furthermore, this also includes the production of interior panels and cabinet doors;

[0017] The steps for manufacturing interior trim panels include: manufacturing a first composite panel and a second composite panel;

[0018] S1. Take two thin boards, apply glue to one side of each board, and stack the glued sides together.

[0019] S2. Place the stacked thin plates into a hot press and hot press them again to form the first composite plate;

[0020] The manufacturing process of the second composite board is the same as that of the first composite board;

[0021] The steps involved in making cabinet doors include:

[0022] S1. Place the inner lining of the exterior trim panel facing upwards inside the hot press;

[0023] S2. Apply glue to both sides of multiple wooden strips and place them sequentially on the surface of the inner lining board, with one side of the wooden strips bonded to the surface of the inner lining board.

[0024] S3. Lay the interior panel flat on the other side of the wood strip, and glue the other side of the wood strip to the surface of the interior panel.

[0025] S4. The interior panel, wood strips and exterior panel are hot-pressed and bonded together to form a cabinet door blank;

[0026] S5. Cut the four sides of the cabinet door blank to remove excess dimensions and form a cabinet door blank of the required size.

[0027] S6. Polish the wood grain surface of the outer panel to remove any residual release paper.

[0028] S7. Seal the four sides of the cabinet door blank with edge strips to form the cabinet door.

[0029] Furthermore, both the wood grain strips and the interior trim panels are made of 3mm thick wood boards. The two thin boards of the interior trim panels are both 3mm thick. Adjacent wood grain strips are spliced ​​together to form a splicing seam, which is filled with an adhesive. The adhesive is a paste-like adhesive composed of glue, wood powder, and color powder.

[0030] Furthermore, the inner lining panel has multiple slits on its surface at the bend, the slits are misaligned with the seams, and the length of the slits is greater than the length of the corner section of the outer trim panel.

[0031] Furthermore, the wooden strips are spaced apart along the horizontal section of the outer trim panel, and the wooden strips at the curved surfaces of the corner sections of the outer trim panel are curved strips, with wooden strips abutting at both ends of the curved strips.

[0032] Furthermore, the arc-shaped strip is cut from square timber with a specification of 60mm, and the thickness of the wooden strip is 18mm.

[0033] A thermoforming mold includes a first mold and a second mold. The first mold includes a first fixed mold and a first movable mold. The first fixed mold includes a first mold cavity with notches on both sides. The first movable mold can be inserted into the first mold cavity.

[0034] The second mold includes a second fixed mold and a second moving mold. The second fixed mold has a corner-shaped second mold cavity inside, and the second moving mold can be inserted into the second mold cavity.

[0035] Furthermore, a first limiting groove is provided on the side of the bottom of the second mold cavity away from the corner, and an insert is fixed inside the second fixed mold. The insert is located above the corner of the second mold cavity, and a second limiting groove is provided inside the insert, which opens towards one side of the second mold cavity. One end of the planar outer trim panel is embedded in the first limiting groove and the other end is embedded in the second limiting groove. The distance between the first limiting groove and the second limiting groove is smaller than the width of the planar outer trim panel.

[0036] Furthermore, the first limiting groove includes a first guide surface and a plane located on its upper part. The first guide surface is inclined upward toward the second mold cavity, and the distance between the plane and the bottom of the first limiting groove is in the range of 6.2mm-6.8mm.

[0037] Furthermore, the upper surface of the second limiting groove is an inclined surface that is inclined upward from the second mold cavity toward the insert, and one end of the outer trim panel can abut against the inclined surface.

[0038] In summary, the present invention has the following beneficial effects:

[0039] By splicing wood grain strips to form a wood grain board, and then combining it with an inner lining board and bending it into shape, the outer panel of the cabinet door is made, realizing the overall solid wood production of the cabinet door, which greatly improves the texture of the cabinet door. Moreover, the wood grain board is 3mm thick, so even if the surface is scratched during use, the base material will not be exposed, resulting in a good user experience. Furthermore, the solid wood wood grain board will almost never peel off or have bulges on the surface, and its quality is higher than that of cabinet doors made of wood veneer. Attached Figure Description

[0040] Figure 1 This is a sectional view of the cabinet door;

[0041] Figure 2 for Figure 1 A partial schematic diagram;

[0042] Figure 3 This is a structural diagram of a wood grain panel;

[0043] Figure 4 This is a plan view of the exterior trim panels;

[0044] Figure 5 This is a cross-sectional view of the exterior trim panel;

[0045] Figure 6 This is a cross-sectional view of the exterior trim panel after it has been bent and formed.

[0046] Figure 7 Exploded view of the first mold;

[0047] Figure 8 This is a partial sectional view of the first mold;

[0048] Figure 9 This is a schematic diagram of the second mold.

[0049] Figure 10 for Figure 9 A partial schematic diagram;

[0050] Figure 11 for Figure 10 Enlarged view at point A;

[0051] Figure 12 for Figure 9 A partial schematic diagram;

[0052] Figure 13 This is a cross-sectional view of the exterior trim panel during bending and forming.

[0053] Figure 14 This is a structural diagram of the cabinet door;

[0054] Figure 15 This is a picture of a real wood grain panel.

[0055] Reference numerals: 1. Exterior panel; 11. Wood grain panel; 111. Wood grain strip; 112. Joint; 12. Inner lining panel; 121. Cut; 13. Corner section; 14. Horizontal section; 2. Interior panel; 21. First composite panel; 22. Second composite panel; 3. Wood strip; 31. Curved strip; 310. Square timber; 4. Edge strip; 5. First mold; 51. First fixed mold; 511. First mold cavity; 512. Notch; 52. First moving mold; 6. Isolation 7. Paper; 7. Second mold; 71. Second moving mold; 72. Second fixed mold; 721. Second mold cavity; 722. First limiting groove; 7221. First guide surface; 7222. Plane; 723. First mounting groove; 724. Second mounting groove; 73. Insert; 731. Second limiting groove; 732. Inclined surface; 74. Cover; 8. Slider; 81. Second guide surface; 82. Third guide surface; 9. Push block; 91. Cylinder; 100. Spring. Detailed Implementation

[0056] 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.

[0057] like Figures 1 to 15 As shown, this embodiment discloses a splicing cabinet door manufacturing process, including manufacturing an outer trim panel 1, manufacturing an inner trim panel 2, and manufacturing a cabinet door;

[0058] The steps for making exterior panel 1 include:

[0059] S1, such as Figure 7 and Figure 8 As shown, a release paper 6 is laid in the first cavity 511 of the first mold 5. The release paper 6 is silicone paper with a temperature resistance range of 200℃ to 250℃ and a thickness of 0.05mm to 0.1mm. The release paper 6 is used to separate the wood grain board 11 from the bottom of the first cavity 511, thereby effectively preventing the adhesive on the edge of the wood grain strip 111 from sticking to the bottom of the first cavity 511 after the outer trim panel 1 is hot-pressed. This not only makes it easier to remove the outer trim panel 1, but also prevents excessive damage to the surface of the wood grain board 11.

[0060] S2. Apply adhesive to one side of a wood grain strip 111 and place it into the first mold cavity 511, with the side of the wood grain strip 111 away from the adhesive adhering to the side of the first mold cavity 511; S3. Apply adhesive to one side of another wood grain strip 111 and place it into the first mold cavity 511, with the side of the wood grain strip 111 away from the adhesive adhering to the side of the previous wood grain strip 111 with adhesive adhering; S4. Repeat step S3, placing the required number of wood grain strips 111 side by side in the first mold cavity 511, and connecting adjacent wood grain strips 111 with adhesive to form a shape as shown in the image. Figure 3 The wood grain panel 11 shown.

[0061] The length and width of the first mold cavity 511 are slightly larger than the size of the wood grain board 11. The wood grain board 11 in step S4 is simply made by pre-gluing wood grain strips 111. The wood grain strips 111 are 3mm thick boards, which are relatively thin, resulting in a smooth surface when laid flat and making them less prone to breakage when bent. Furthermore, there is a 3mm thick area between two wood grain strips 111 that can be spliced ​​together, allowing adjacent wood grain strips 111 to form a stepped wood grain pattern. The cabinet doors made from this pattern have a stepped aesthetic. For a real-life image of the surface texture of the wood grain board 11, please refer to the attached image. Figure 15 .

[0062] When two adjacent wood grain strips 111 are joined together, a seam 112 is formed. This seam 112 is filled with an adhesive, which is a paste-like adhesive composed of glue, wood powder, and colorant. The glue is a conventional synthetic resin glue used for bonding wood. The wood powder is powder formed from crushed wood of the same material as the wood grain strips 111. The glue and wood powder are mixed, and then colorant is added to adjust the color of the adhesive to closely resemble the color of the wood grain strips 111. When two wood grain strips 111 are bonded together, this adhesive... The adhesive can fill the splicing seam 112. Due to the splicing operation, the size of the splicing seam 112 between different wood grain strips 111 varies slightly. However, by filling the seam with an adhesive that is close in color to the wood grain strip 111, the slightly larger splicing seam 112 has little impact on the overall appearance of the wood grain board 111. By using this adhesive, the width of the splicing seam 112 can reach a maximum of 0.5mm. That is, the size of the splicing seam 112 that is less than 0.5mm is considered qualified, which can greatly improve the qualification rate of the wood grain board 11.

[0063] S5. Apply a layer of adhesive to the upper surface of the wood grain board 11. The adhesive is the same as that used in step S2. S6. Place the inner lining board 12 flat on the surface of the wood grain board 11 coated with adhesive. The thickness of the inner lining board 12 is 3mm. S7. The hot press drives the first moving mold 52 to move downward and abut against the upper surface of the inner lining board 12. The wood grain strips 111 and the wood grain board 11 and the inner lining board 12 are hot-pressed and bonded to form a flat outer panel 1. During hot pressing, the pressure is controlled at 6t-7t, the temperature is 160℃-180℃, and the hot pressing time is 20min-25min.

[0064] The first mold 5 is a forming mold of a hot press (the hot press is existing technology and is not shown in the figure). The first mold 5 includes a first fixed mold 51 and a first moving mold 52. The first mold cavity 511 is located above the first fixed mold 51. The first mold cavity 511 has notches 512 on both sides. The hot press can drive the first moving mold 52 to descend so that it can be inserted into the first mold cavity 511. The first fixed mold 51 and the first moving mold 52 are made of iron. Steam is passed through the first fixed mold 51 and the first moving mold 52. The first fixed mold 51 and the first moving mold 52 are connected to steam pipes (not shown in the figure). The steam pipes are designed with one inlet and one outlet. This will generate the temperature required for hot pressing in the first mold cavity 511. Hot pressing allows the adhesive to fully melt and fill the splice seam 112, and tightly bond the wood grain strips 111 to each other and to the inner lining plate 12.

[0065] like Figure 4 , Figure 6 and Figure 7 As shown, the inner lining panel 12 has multiple cuts 121 on its surface at the bend, i.e., at the corner section 13. The cuts 121 are misaligned with the splicing seam 112. The length of the cuts 121 is greater than the length of the corner section 13 of the outer trim panel 1, and the width of the cuts 121 is 2mm.

[0066] In this invention, the radius of the outer contour of the corner segment 13 of the outer trim panel 1 is 55mm. It can be seen that the bending radius of the outer trim panel 1 is small. Since the wood grain panel 11 is made by splicing multiple wood grain strips 111, it is not possible to bend the wood grain panel 111 separately and then bond it with the bent inner lining panel 12 using adhesive. However, if the inner lining panel 12 and the wood grain panel 11 are bonded together and then bent, the inner side of the inner lining panel 12 is very easy to break when directly bent because the thickness of the bonded outer trim panel 1 is 6mm and the bending radius is small. Therefore, by setting multiple cuts 121, the bending of the inner lining panel 12 can be segmented, which can greatly reduce the risk of the inner lining panel 12 breaking at the bending point when bending the outer trim panel 1, and is conducive to improving the yield of the outer trim panel 1.

[0067] S8. After the hot press cools down, take out the flat outer panel 1 and peel off the release paper 6 pasted on the surface of the wood grain board 11. Since the release paper 6 is silicone paper, it is easy to peel off. When peeling, some of the release paper 6 may remain pasted on the surface of the outer panel 1.

[0068] S9. Place the wood grain panel 11 of the flat exterior trim panel 1 downwards into the second mold cavity 721 of the second mold 7; S10. The hot press drives the second moving mold 71 to move downwards to abut against and squeeze the upper surface of the interior trim panel 2. The flat exterior trim panel 1 is hot-pressed by the second moving mold 71 to bend and deform it, forming a corner-shaped exterior trim panel 1 that is consistent with the contour of the second mold cavity 721. During hot pressing, the pressure is controlled at 6t-7t and the temperature is 130℃-140℃. This temperature range is lower than the melting point of the adhesive. During hot pressing at this temperature, the adhesive will only soften. The hot pressing time is 15min-20min.

[0069] The second mold 7 includes a second fixed mold 72 and a second moving mold 71. The second mold cavity 721 is corner-shaped and located inside the second fixed mold 72. The second moving mold 71 can be inserted into the second mold cavity 721. The hot press can drive the second moving mold 71 to descend so that it can be inserted into the second mold cavity 721. The second fixed mold 72 and the second moving mold 71 are made of iron. Steam is passed through both the second fixed mold 72 and the second moving mold 71. Both the second fixed mold 72 and the second moving mold 71 are connected to steam pipes (not shown in the figure). The steam pipes are designed with one inlet and one outlet, which will generate the temperature required for hot pressing in the second mold cavity 721. Hot pressing allows the flat outer trim panel 1 to be fully bent to form a corner shape. After the outer trim panel 1 is bent and formed, it will solidify for a period of time because the outer trim panel 1 is relatively thick.

[0070] like Figures 9 to 12 As shown, a first limiting groove 722 is provided on the side of the bottom of the second mold cavity 721 away from the corner. The first limiting groove 722 includes a first guide surface 7221 and a plane 7222 located on its upper part. The first guide surface 7221 is inclined upward towards the second mold cavity 721. The distance between the plane 7222 and the bottom of the first limiting groove 722 is 6.2mm-6.8mm. By setting the first guide surface 7221, the outer trim panel 1 can be guided when inserted into the first limiting groove 722, making it easier for it to be inserted into the plane segment 7222. By setting the plane segment 7222, the outer trim panel 1 can be limited, reducing the displacement of the outer trim panel 1 on this side during hot pressing and improving the forming accuracy of the outer trim panel 1 after hot pressing.

[0071] An insert 73 is welded and fixed inside the second fixed mold 72. The upper surface of the insert 73 is flush with the upper surface of the second fixed mold 72. The insert 73 is located above the corner of the second mold cavity 721 and on the outside of the second mold cavity 721. The insert 73 has a second limiting groove 731 that opens towards one side of the second mold cavity 721. One end of the planar outer trim panel 1 is embedded in the first limiting groove 722 and the other end is embedded in the second limiting groove 731. The distance between the first limiting groove 722 and the second limiting groove 731 is smaller than the width of the planar outer trim panel 1. The upper surface of the second limiting groove 731 is an inclined surface 732 that slopes upward from the second mold cavity 721 toward the insert 73. One end of the outer trim panel 1 can abut against the inclined surface 732. Figure 9 As shown, when one end of the flat exterior trim panel 1 is inserted into the first limiting groove 722, the other end initially rests on the upper part of the insert 73. When the flat exterior trim panel 1 is pressed down, it deforms, and the end of the exterior trim panel 1 located on the insert 73 moves downwards to the second limiting groove 731. When the end of the exterior trim panel 1 is located in the second limiting groove 731, the exterior trim panel 1 springs back until the end of the exterior trim panel 1 is inserted into the second limiting groove 731, forming... Figure 9 The state shown is equivalent to pre-bending the outer trim panel 1, which facilitates the hot pressing and bending operation of the second moving mold 71 on the outer trim panel 1.

[0072] like Figure 10 and Figure 11 As shown, the second fixed mold 72 also includes a first mounting groove 723 located above the plane 7222 of the first limiting groove 722 and communicating with the first limiting groove 722, and a second mounting groove 724 located on the side of the first mounting groove 723 and communicating with the first mounting groove 723. A slider 8 that can move up and down is installed in the first mounting groove 723. The lower end of the slider 8 can pass through the lower part of the first mounting groove 723 and abut against the bottom of the first limiting groove 722. The lower part of the slider 8 is provided with a third guide surface 82. The third guide surface 82 is an inclined surface 732 and its height is greater than the distance between the plane 7222 and the bottom of the first limiting groove 722. When the outer trim panel 1 is not inserted into the first limiting groove 722, the lower end of the slider 8 abuts against the bottom of the first limiting groove 722. If the outer trim panel 1 is inserted, the outer trim panel 1 will abut against the third guide surface 82 and push the slider 8 to move upward, so that the lower end of the slider 8 abuts against the upper part of the outer trim panel 1.

[0073] A push block 9 is provided in the second mounting groove 724. One end of the push block 9 is connected to a cylinder 91, which is fixed to the outside of the second fixed mold 72. The other end of the push block 9 can be inserted into the first mounting groove 723. A second guide surface 81 is provided on the upper part of the slider 8. Figure 10 As shown, when the push block 9 moves to the right, the push block 9 can move the second guide surface 81 and push the slider 8 down, so that the slider 8 can firmly abut against the upper part of the outer trim panel 1.

[0074] When the second mold 7 processes the outer trim panel 1, the cooperation of the push block 9, the slider 8 and the outer trim panel 1 can effectively prevent the outer trim panel 1 from retracting at the end of the first limiting groove 722 during hot pressing, thereby avoiding the problem that the horizontal section 14 of the outer trim panel 1 is not long enough, and effectively improving the forming accuracy of the outer trim panel 1 after hot pressing.

[0075] like Figure 14 As shown, the steps for manufacturing interior panel 2 include:

[0076] Fabricate the first composite board 21 and the second composite board 22;

[0077] To make the first composite board 21, S1, take two thin boards, apply glue to one side of the two thin boards, and stack the glued sides together; S2, put the stacked thin boards into a hot press and hot press them again to form the first composite board 21.

[0078] The manufacturing process of the second composite panel 22 is the same as that of the first composite panel 21. The thickness of the thin plate is 3mm. After the two thin plates are coated with glue, they are hot-pressed into a flat plate by a hot press. The hot pressing process of the interior panel 2 is flat plate hot pressing, which is existing technology. The specific process steps and the required mold structure are not described in this specification. After hot pressing, the first composite panel 21 and the second composite panel 22 with a thickness of 6mm are formed. The difference between the first composite panel 21 and the second composite panel 22 is the difference in width. Of course, the interior panel 2 can also be made in other ways, such as hot pressing two thin plates and then cutting them to form the first composite panel 21 and the second composite panel 22.

[0079] like Figure 1 and Figure 2 As shown, the steps for making cabinet doors include:

[0080] S1. Place the inner lining board 12 of the outer trim panel 1 facing upwards in the hot press; S2. Apply glue to both sides of multiple wooden strips 3 and place them sequentially on the surface of the inner lining board 12. The thickness of the wooden strips 3 is 18mm, and one side of the wooden strips 3 is bonded to the surface of the inner lining board 12; S3. Place the interior trim panel 2 flat on the other side of the wooden strips 3, and bond the other side of the wooden strips 3 to the surface of the interior trim panel 2; S4. Use the hot press to hot press and bond the interior trim panel 2, the wooden strips 3, and the outer trim panel 1 to form a cabinet door blank;

[0081] The mold structure and principle required for making cabinet doors are similar to those of the first mold 5, except that the mold cavity specifications are different. Therefore, its specific structure will not be described in detail in this instruction manual. When hot pressing cabinet doors are made, the pressure of the hot press is controlled at 6t-7t, the temperature is 160℃-180℃, and the hot pressing time is 20min-25min.

[0082] like Figure 2As shown, the wooden strips 3 are spaced apart at the horizontal section 14 of the outer panel 1. The spaced wooden strips 3 at the horizontal section 14 can reduce the amount of wooden strips 3 used while ensuring the thickness and quality of the cabinet door, thereby reducing production costs.

[0083] The wooden strip 3 at the arc-shaped surface of the corner section 13 of the outer trim panel 1 is an arc-shaped strip 31. The arc-shaped strip 31 is made by cutting 60mm square timber 310 on a jigsaw. Both ends of the arc-shaped strip 31 are abutted by wooden strips 3. The arc-shaped strip 31 has grooves at both ends. The protrusion of one end of the wooden strip 3 that abuts the arc-shaped strip 31 is inserted into the groove. Two wooden strips 3 and one arc-shaped strip 31 are set in the entire corner section 13. The arc-shaped strip 31 is fixed to the wooden strip 3 in a concave-convex interlocking adhesive manner. This can not only effectively prevent the outer trim panel 1 from deforming in this area, but also improve the structural strength of this area. After the interior trim panel 2, wooden strips 3 and outer trim panel 1 are glued together, the overall cabinet door will hardly deform due to the thickness of the wooden strip 3. Even if a small deformation occurs, it will not affect the normal use of the cabinet door.

[0084] like Figure 2 As shown, since the arc corner of the interior panel 2 is small, the interior panel 2 cannot be hot-pressed and bent. Therefore, by dividing the interior panel 2 into a first composite panel 21 and a second composite panel 22, and exposing the arc corner of the interior panel with the inner arc surface of the arc strip 31, the first composite panel 21 and the second composite panel 22 respectively abut against the two ends of the inner side of the arc strip 31. The design of the first composite panel 21 and the second composite panel 22 and the inner arc surface of the arc strip 331 with a smooth transition can produce the required interior panel.

[0085] S5. Cut the four sides of the cabinet door blank to remove excess dimensions. The overall size of the finished cabinet door blank is larger than the required cabinet door size, so it is necessary to cut the cabinet door blank to obtain the cabinet door blank with the required shape.

[0086] S6. Polish the surface of the wood grain board 11 of the outer decorative panel 1. Polishing can remove the release paper 6 remaining on the surface, and the surface of the wood grain board 11 becomes smoother after polishing.

[0087] S7. Use edge strip 4 to seal the four sides of the cabinet door blank to form the cabinet door, ultimately creating the desired shape. Figure 14 The cabinet door shown uses a 4-sided edge banding method, which is a standard procedure in cabinet door manufacturing and is an existing technology. The specific edge banding process will not be described in detail in this instruction manual. After the cabinet door edge banding is completed, an overall paint treatment is applied to further enhance the texture of the cabinet door.

[0088] The hot pressing mold of the present invention is a first mold 5 and a second mold 7.

[0089] By splicing wood grain strips 111 to form wood grain board 11, and then combining it with inner lining board 12 and bending it to form the outer decorative panel 1 of the cabinet door, the cabinet door is made of solid wood as a whole, which greatly improves the texture of the cabinet door. The wood grain board 11 is 3mm thick, so even if there are scratches on the surface during use, the base material will not be exposed, resulting in a good user experience. In addition, the solid wood wood grain board 11 will hardly fall off or have bulges on the surface, and its quality is higher than that of cabinet doors made of wood grain veneer.

[0090] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A manufacturing process for spliced ​​cabinet doors, characterized in that, This includes the production of exterior trim panels (1); The steps for making the exterior trim panel (1) include: S1. Lay release paper (6) inside the first cavity (511) of the first mold (5); S2. Apply adhesive to the side of a wood grain strip (111) and place it into the first mold cavity (511), with the side of the wood grain strip (111) away from the adhesive close to the side of the first mold cavity (511). S3. Apply adhesive to one side of another wood grain strip (111) and place it into the first mold cavity (511). The side of the wood grain strip (111) away from the side with adhesive applied is close to the side of the previous wood grain strip (111) with adhesive applied. S4. Repeat step S3 to place the required number of wood grain strips (111) side by side in the first mold cavity (511), and connect two adjacent wood grain strips (111) with adhesive to form a wood grain board (11). S5. Apply a layer of adhesive to the upper surface of the wood grain board (11); S6. Place the inner lining board (12) flat on the surface of the wood grain board (11) coated with adhesive. S7. The hot press drives the first moving mold (52) to move downward and abut against the upper surface of the inner lining plate (12), and hot presses the wood grain strip (111) to the wood grain strip (111), the wood grain plate (11) to the inner lining plate (12) to form a flat outer panel (1). S8. Take out the flat outer panel (1) and remove the release paper (6) pasted on the surface of the wood grain panel (11); S9. Place the wood grain panel (11) of the flat outer trim panel (1) with the wood grain panel (11) facing down in the second mold cavity (721) of the second mold (7); S10. The hot press drives the second moving mold (71) to move downward to abut and squeeze the upper surface of the interior panel (2). The second moving mold (71) hot presses the flat exterior panel (1) to make it bend and deform, forming a corner-shaped exterior panel (1) that is consistent with the contour of the second mold cavity (721).

2. The manufacturing process for a spliced ​​cabinet door according to claim 1, characterized in that, It also includes the production of interior panels (2) and cabinet doors; The steps for manufacturing the interior panel (2) include: manufacturing the first composite panel (21) and the second composite panel (22); S1. Take two thin boards, apply glue to one side of each board, and stack the glued sides together. S2. Place the stacked thin plates into a hot press and hot press them again to form the first composite plate (21); The manufacturing process of the second composite board (22) is the same as that of the first composite board (21); The steps involved in making cabinet doors include: S1. Place the inner lining (12) of the outer trim panel (1) facing upwards in the hot press; S2. Apply glue to both sides of multiple wooden strips (3) and place them on the surface of the inner lining board (12) in sequence, with one side of the wooden strips (3) bonded to the surface of the inner lining board (12); S3. Place the interior panel (2) flat on the other side of the wooden strip (3), and glue the other side of the wooden strip (3) to the surface of the interior panel (2); S4. The interior panel (2), wood strip (3) and exterior panel (1) are hot-pressed together using a hot press to form a cabinet door blank; S5. Cut the four sides of the cabinet door blank to remove excess dimensions and form a cabinet door blank of the required size. S6. Polish the surface of the wood grain board (11) of the outer panel (1), and the release paper (6) remaining on the surface of the wood grain board (11) can be removed during polishing. S7. The four sides of the cabinet door blank are sealed with edge strips (4) to form the cabinet door.

3. The splicing cabinet door manufacturing process according to claim 2, characterized in that, The wood grain strips (111) and the inner lining board (12) are both 3mm thick wood boards, and the thickness of the inner lining board (2) is 3mm. Two adjacent wood grain strips (111) are spliced ​​to form a splicing seam (112), which is filled with an adhesive. The adhesive is a paste-like adhesive composed of glue, wood powder and color powder.

4. The splicing cabinet door manufacturing process according to claim 3, characterized in that, The inner lining panel (12) has multiple cuts (121) on the surface at the bend. The cuts (121) are misaligned with the seam (112), and the length of the cuts (121) is greater than the length of the corner section (13) of the outer trim panel (1).

5. The splicing cabinet door manufacturing process according to claim 2, characterized in that, The wooden strips (3) are spaced apart at the horizontal section (14) of the outer trim panel (1). The wooden strips (3) at the arc-shaped surface of the corner section (13) of the outer trim panel (1) are arc-shaped strips (31), and both ends of the arc-shaped strips (31) are abutted by wooden strips (3).

6. The manufacturing process for a spliced ​​cabinet door according to claim 5, characterized in that, The arc-shaped strip (31) is cut from a square timber (310) with a specification of 60mm, and the thickness of the wooden strip (3) is 18mm.

7. A hot-press forming mold, applied to a splicing cabinet door manufacturing process as described in any one of claims 1-6, characterized in that, It includes a first mold (5) and a second mold (7). The first mold (5) includes a first fixed mold (51) and a first moving mold (52). The first fixed mold (51) includes a first mold cavity (511). The first mold cavity (511) has notches (512) on both sides. The first moving mold (52) can be inserted into the first mold cavity (511). The second mold (7) includes a second fixed mold (72) and a second moving mold (71). The second fixed mold (72) has a corner-shaped second mold cavity (721) inside, and the second moving mold (71) can be inserted into the second mold cavity (721).

8. A hot pressing forming mold according to claim 7, characterized in that, The second mold cavity (721) has a first limiting groove (722) on the side away from the corner at the bottom. The second fixed mold (72) has an insert (73) fixed inside. The insert (73) is located above the corner of the second mold cavity (721). The insert (73) has a second limiting groove (731) that opens to the side of the second mold cavity (721). One end of the flat outer trim panel (1) is embedded in the first limiting groove (722) and the other end is embedded in the second limiting groove (731). The distance between the first limiting groove (722) and the second limiting groove (731) is smaller than the width of the flat outer trim panel (1).

9. A hot pressing forming mold according to claim 8, characterized in that, The first limiting groove (722) includes a first guide surface (7221) and a plane (7222) located on its upper part. The first guide surface (7221) is inclined upward toward the second mold cavity (721). The distance between the plane (7222) and the bottom of the first limiting groove (722) is in the range of 6.2mm-6.8mm.

10. A hot pressing forming mold according to claim 9, characterized in that, The upper surface of the second limiting groove (731) is an inclined surface (732) that is inclined upward from the second mold cavity (721) toward the insert (73), and one end of the outer trim panel (1) can abut against the inclined surface (732).

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