Hidden building decorative panel, production process and polishing device

Abstract

The present application relates to a hidden building decorative panel, a production process and a polishing device, and relates to the technical field of decorative panels. The decorative panel includes an aluminum substrate, one end of which is bent to form a positive corner portion, and the other end is bent to form a negative corner portion. The negative corner portion is provided with an assembly groove for the clamping of the positive corner portion. The production process includes: uncoiling and longitudinal shearing, flat plate, forming rolling, straightening, cutting, polishing, anodizing and spraying. The polishing device includes a mounting frame, both ends of which are provided with two connected and vertically arranged limiting slide grooves; a grinding roller structure, including two grinding rollers, a support assembly, a rotating drive assembly for driving the grinding roller to rotate, and a sliding drive assembly for driving the support assembly to slide, and both ends of the grinding roller are inserted into the limiting slide grooves; when polishing, the grinding roller is parallel to the assembly groove of the decorative panel. The present application has the effect of facilitating the installation of decorative panels.

Description

Technical Field

[0001] The present application relates to decorative panels, and in particular to concealed architectural decorative panels, production processes and polishing devices. Background Art

[0002] With the continuous development of the construction industry, people's requirements for the aesthetics, functionality and environmental protection of the building's appearance are increasing. As an important part of the building's exterior wall, the performance and technical level of the exterior wall decorative panels directly affect the overall effect and service life of the building. As an innovative and multifunctional building material, aluminum exterior wall decorative panels have gradually been favored by architects and designers around the world since the 1970s. They have a deep technical background and are continuously developing. Aluminum exterior wall decorative panels have the characteristics of light weight, high strength, weather resistance and corrosion resistance, fire resistance, sound insulation, heat preservation, environmental protection and sustainability. In public places, such as large buildings such as airports, aluminum veneers are widely used in exterior wall decoration due to their above advantages. As an important facade building in the city, the decoration design of the airport needs to highlight the city's image and cultural connotation. The exquisite appearance and fire resistance of aluminum veneers just meet this demand.

[0003] At present, the existing building walls and decorative wall panels are mostly connected by wrapping multiple female angle irons or male angle irons on the edges of the decorative panels, and then using screws and bolts to fix the decorative panels to the steel frame. This installation method consumes a lot of work time. Summary of the invention

[0004] The purpose of this application is to provide a concealed building decorative panel, a production process and a grinding device to facilitate the installation of the decorative panel.

[0005] In the first aspect, the hidden building decorative panel provided by the present application adopts the following technical solution:

[0006] A hidden building decorative panel comprises an aluminum substrate, one end of which is bent to form a positive corner portion, and one end of which is away from the positive corner portion is bent to form a negative corner portion. The negative corner portion is provided with an assembly groove for accommodating the positive corner portion of another aluminum substrate, and the positive corner portion is clamped with the assembly groove.

[0007] The above technical solution eliminates the cumbersome steps of additionally assembling female angle irons or male angle pieces in traditional installation, and directly realizes the corner connection through the bending structure of the aluminum substrate itself, which not only simplifies the installation process and improves the construction efficiency, but also significantly reduces the weight of the overall decorative panel, achieving a combination of lightness and convenience. The connection part is hidden to improve the aesthetics of the building facade.

[0008] Preferably, the male corner portion includes a first protrusion protruding toward the front side of the aluminum substrate and a second protrusion protruding toward the back side of the aluminum substrate, and the female corner portion includes an integrally formed first connecting plate, a second connecting plate and a third connecting plate, the second connecting plate is perpendicular to the aluminum substrate, the third connecting plate is vertically fixedly connected to the second connecting plate, one end of the first connecting plate is fixedly connected to the aluminum substrate, and the other end is connected to an end of the second connecting plate away from the third connecting plate, the end of the first connecting plate away from the second connecting plate is bent toward one side of the third connecting plate to form an abutting portion, and the third connecting plate is bent to form a convex ridge; when the two aluminum substrates are clamped, the abutting portion abuts the intersection of the first protrusion and the aluminum substrate, and the convex ridge abuts the side wall of the second protrusion.

[0009] Through the above technical solution, when splicing two decorative panels, the operation becomes extremely simple: first, the first protrusion is accurately placed in the angle formed by the first connecting plate and the second connecting plate, and then the decorative plate is gently rotated to allow the second protrusion to slide smoothly into the assembly groove. At this time, the abutment portion will tightly abut against the front of the aluminum substrate, while cleverly clamping the edge where the first protrusion and the aluminum substrate meet, ensuring the flatness and stability of the connection. The ridge abuts against the side wall of the second protrusion, forming a double lock, which effectively prevents the decorative panel from loosening or dislocation during use. This design not only simplifies the installation process, but also significantly improves the overall aesthetics and durability of the decorative panel.

[0010] Preferably, the aluminum substrate is bent to form a plurality of decorative edges protruding toward the front, the inner corner portion is located in a groove formed by the protruding decorative edges, the first connecting plate is connected to the decorative edges, and the shape of the first connecting plate is the same as the shape of one side of the decorative edge and the two are in contact with each other.

[0011] Through the above technical solution, the aluminum substrate is carefully designed and bent to form multiple decorative edges protruding toward the front. These decorative edges not only give the decorative board a rich sense of layering and three-dimensionality, but also cleverly hide the existence of the inner corner. The inner corner is cleverly embedded in and located in the groove naturally formed by the protruding decorative edges, achieving seamless visual integration.

[0012] In the second aspect, the production process provided by this application adopts the following technical solution:

[0013] The production process of any of the aforementioned hidden building decorative panels comprises the following steps:

[0014] S1. Uncoiling and longitudinal shearing: Uncoiling the aluminum alloy coil, and then longitudinally shearing the uncoiling aluminum strip to obtain a billet of the required width;

[0015] S2, flat plate: flatten the cut aluminum strip;

[0016] S3, forming and rolling: the processed aluminum strip is fed into a forming machine, where it is bent and shaped by multiple rollers to gradually form the desired cross-sectional shape;

[0017] S4, straightening: straighten the formed aluminum profile to ensure the straightness and dimensional accuracy of the profile;

[0018] S5. Cutting: Cut the continuously formed aluminum profiles into individual products according to the product length requirements;

[0019] S6. Grinding: Grind the cut aluminum profile to remove surface burrs and uneven parts; Grind the assembly groove at the inner corner;

[0020] S7, anodizing: anodizing the formed aluminum plate;

[0021] S8. Spraying.

[0022] In the third aspect, the hidden building decorative panel grinding device provided in the present application adopts the following technical solution:

[0023] The hidden building decorative panel grinding device is applied to the production process of the aforementioned hidden building decorative panel, including:

[0024] The mounting frame has two disjointed limit slide grooves at both ends, and the two limit slide grooves are vertically arranged;

[0025] The grinding roller structure includes two grinding rollers arranged in parallel and a support assembly for limiting the distance between the two grinding rollers, the two ends of the grinding rollers are inserted into the limiting slide grooves, the support assembly can move relative to the mounting frame, and the moving track is in an arc shape, and the two ends of the moving track are respectively located at the midpoints of the two limiting slide grooves;

[0026] Among them, the grinding roller structure also includes a grinding roller rotating assembly for driving the grinding roller to rotate, and a sliding drive assembly for driving the supporting assembly to slide; the grinding roller is parallel to the length direction of the assembly groove of the decorative panel; during grinding, the two grinding rollers are located in the assembly groove, and the sliding drive assembly drives the supporting assembly to slide, so as to drive the grinding roller to move along the limiting slide groove, thereby grinding the inner wall of the assembly groove.

[0027] By adopting the above technical solution, the inner corner of the decorative plate is polished. During the polishing process, the two polishing rollers move along the sliding groove, and the moving path conforms to the inner shape of the decorative plate assembly groove, ensuring that the moving track of the polishing roller inside the inner corner of the decorative plate is stable and controllable, effectively avoiding the errors and unevenness that may occur in traditional manual polishing, thereby greatly improving the polishing accuracy and overall construction efficiency. In addition, the flatness of the inner part of the assembly groove is improved, making it easier to assemble.

[0028] Preferably, the supporting assembly includes a pivot housing and two swing arms hinged to the pivot housing, the two swing arms are respectively located on both sides of the pivot housing, the grinding roller is rotatably connected to one end of the swing arm away from the pivot housing, the pivot housing is rotatably connected to two mutually meshing interlocking gears, one end of the swing arm close to the pivot housing is fixedly connected to a half-width gear, the center of the half-width gear is coaxially arranged with the rotation axis of the swing arm, and the half-width gear is meshed one-to-one with the interlocking gear.

[0029] Through the above technical solution, the two swing arms can rotate towards or away from each other. After rotating towards each other, the distance between the two grinding rollers is reduced, making it easier for the grinding rollers to enter the assembly groove.

[0030] Preferably, the mounting frame includes a fixed frame and a sliding frame slidably connected to the fixed frame, the sliding trajectories of the sliding frame and the fixed frame are perpendicular to the sliding trajectory of the supporting assembly, the limiting sliding groove is opened on the sliding frame, the supporting assembly is slidably connected to the sliding frame, and a first hydraulic cylinder for driving the sliding frame to slide is arranged between the fixed frame and the sliding frame.

[0031] Through the above technical solution, the first hydraulic cylinder pushes the sliding frame to move, so as to drive the grinding roller assembly to enter and exit the assembly groove.

[0032] Preferably, the sliding drive assembly includes a guide rod having one end rotatably connected to the sliding frame and a second hydraulic cylinder driving the guide rod to rotate, the rotation axis of the guide rod is arranged perpendicular to its length direction, the rotation center of the guide rod is located at the intersection of the center lines of two limiting slide grooves, the other end of the guide rod is connected to the support assembly, one end of the second hydraulic cylinder is rotatably connected to the sliding frame, and the other end is rotatably connected to the guide rod.

[0033] Through the above technical solution, the second hydraulic cylinder pushes the guide rod to rotate, thereby driving the support assembly to slide along the arc track.

[0034] Preferably, the sliding drive assembly also includes a sliding sleeve rotatably connected to the pivot housing and a third hydraulic cylinder driving the sliding sleeve to move, the sliding sleeve is mounted on the guide rod and the two are slidably connected; one end of the third hydraulic cylinder is fixedly connected to the guide rod, and the other end thereof is fixedly connected to the sliding sleeve.

[0035] Through the above technical solution, the third hydraulic cylinder drives the pivot housing to move by pushing and pulling the sliding sleeve. When the third hydraulic cylinder contracts, the pivot housing moves away from the fixed frame, causing the swing arm to rotate to be fully opened.

[0036] Preferably, the grinding roller rotating assembly includes a driving motor fixedly connected to the pivot housing and a transmission shaft rotatably connected to the swing arm, the driving motor drives the transmission shaft to rotate via a bevel gear, and the transmission shaft drives the grinding roller to rotate via the bevel gear.

[0037] Through the above technical solution, the driving motor drives the transmission shaft to rotate through the bevel gear, and the transmission shaft drives the grinding roller to rotate through the bevel gear.

[0038] In summary, the present application includes at least one of the following beneficial technical effects:

[0039] 1. It abandons the cumbersome steps of additionally assembling female angle iron or male angle pieces in traditional installation, and directly realizes the corner connection through the bending structure of the aluminum base plate itself. When splicing two decorative panels, first place the first protrusion accurately in the angle formed by the first connecting plate and the second connecting plate, and then rotate the decorative plate to make the second protrusion slide smoothly into the assembly groove. The abutment part will tightly abut against the front of the aluminum base plate, and at the same time cleverly clamp the edge where the first protrusion and the aluminum base plate meet, while the convex ridge abuts against the side wall of the second protrusion, forming a double lock, which effectively prevents the decorative panel from loosening or dislocation during use. It not only simplifies the installation process and improves construction efficiency, but also significantly reduces the weight of the overall decorative panel, realizing the combination of lightweight and convenience. The connection part is hidden to improve the aesthetics of the building's facade.

[0040] 2. The aluminum substrate is carefully designed and bent to form multiple decorative edges protruding toward the front. These decorative edges not only give the decorative board a rich sense of layering and three-dimensionality, but also cleverly hide the existence of the inner corner. The inner corner is cleverly embedded in and located in the groove naturally formed by the protruding decorative edges, achieving seamless visual integration.

[0041] 3. Used to grind the inside of the inner corner of the decorative panel. During the grinding process, the two grinding rollers move along the sliding groove, and the moving path conforms to the internal shape of the decorative panel assembly groove, ensuring that the moving trajectory of the grinding rollers inside the inner corner of the decorative panel is stable and controllable, effectively avoiding the errors and unevenness that may occur in traditional manual grinding, thereby greatly improving the grinding accuracy and overall construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the overall structure of Example 1 of the present application;

[0043] Figure 2 It is a partial schematic diagram of the assembled embodiment 1 of the present application;

[0044] Figure 3 is a schematic diagram of the structure of Example 3 of the present application;

[0045] Figure 4 This is a structural diagram of the support assembly used to illustrate Example 3 of the present application;

[0046] Figure 5 This is a schematic diagram of Example 3 of the present application for illustrating the grinding roller rotating assembly.

[0047] Description of reference numerals: 100, aluminum substrate; 110, male corner portion; 111, first convex block; 112, second convex block; 120, female corner portion; 121, first connecting plate; 122, second connecting plate; 123, third connecting plate; 124, abutting portion; 125, convex ridge; 126, assembly groove; 130, decorative ridge; 200, mounting frame; 210, fixing frame; 220, sliding frame; 221, limiting sliding groove; 230, first hydraulic cylinder; 300, grinding roller structure; 310, grinding roller; 320, supporting assembly; 321, pivot housing; 322, swing arm; 323, half-width gear; 324, linkage gear; 330, sliding drive assembly; 331, second hydraulic cylinder; 332, guide rod; 333, sliding sleeve; 334, third hydraulic cylinder; 340, grinding roller rotating assembly; 341, driving motor; 342, transmission shaft. DETAILED DESCRIPTION

[0048] Example 1: Hidden architectural decorative panel, refer to Figure 1 and Figure 2 The decorative panel includes an aluminum substrate 100. One end of the aluminum substrate 100 is bent to form a male corner portion 110, and one end of the aluminum substrate 100 away from the male corner portion 110 is bent to form a female corner portion 120. The female corner portion 120 is formed with an assembly groove 126 for accommodating the male corner portion 110 of another aluminum substrate 100. When two decorative panels are spliced ​​and assembled, the male corner portion 110 of one decorative panel is placed in the assembly groove 126 of the other decorative panel, thereby achieving splicing.

[0049] Reference Figure 2 The external corner portion 110 includes a first protrusion 111 protruding toward the front of the aluminum substrate 100 and a second protrusion 112 protruding toward the back of the aluminum substrate 100. The front of the aluminum substrate 100 is the front of the decorative panel, which is installed on the outer side of the building's exterior wall. The external corner portion 110 is bent as follows: the aluminum substrate 100 is first bent toward the front direction, and then bent toward the back, thereby forming the protruding first protrusion 111. Then the edge of the aluminum substrate 100 is bent toward the front side and close to the unbent portion of the aluminum substrate 100, thereby forming the second protrusion 112.

[0050] The internal angle portion 120 includes an integrally formed first connecting plate 121, a second connecting plate 122, and a third connecting plate 123. The second connecting plate 122 is perpendicular to the aluminum substrate 100, and the third connecting plate 123 is vertically fixedly connected to the second connecting plate 122. One end of the first connecting plate 121 is fixedly connected to the aluminum substrate 100, and the other end is fixedly connected to one end of the second connecting plate 122 away from the third connecting plate 123. The first connecting plate 121, the second connecting plate 122, and the third connecting plate 123 are enclosed to form an assembly groove 126. One end of the first connecting plate 121 away from the second connecting plate 122 is bent toward one side of the third connecting plate 123 to form an abutment portion 124, and the third connecting plate 123 is bent to form a convex rib 125. The convex rib 125 protrudes into the assembly groove 126.

[0051] When two aluminum substrates 100 are assembled, the first protrusion 111 is first placed in the angle formed by the first connecting plate 121 and the second connecting plate 122, and then the decorative plate is gently rotated to allow the second protrusion 112 to slide smoothly into the assembly groove 126. At this time, the abutment portion 124 will tightly abut against the front of the aluminum substrate 100, while cleverly clamping the edge where the first protrusion 111 and the aluminum substrate 100 meet, ensuring the flatness and stability of the connection. The ridge 125 abuts against the side wall of the second protrusion 112, forming a double lock, which effectively prevents the decorative plate from loosening or dislocation during use. This design not only simplifies the installation process, but also significantly improves the overall aesthetics and durability of the decorative plate.

[0052] Reference Figure 1 and Figure 2 In order to further enhance the aesthetics of the decorative board, the aluminum substrate 100 is bent and formed with a plurality of decorative ridges 130 protruding toward the front at the portion between the inner corner portion 120 and the outer corner portion 110. The decorative ridges 130 protrude toward the front and form a groove at the back. The inner corner portion 120 is located in the groove of the decorative ridge 130 at the edge, wherein the first connecting plate 121 is connected to the decorative ridge 130, and the shape of the first connecting plate 121 is the same as the shape of one side of the decorative ridge 130 and the two fit together. These decorative ridges 130 not only give the decorative board a rich sense of layering and three-dimensionality, but also cleverly hide the existence of the inner corner portion 120. The inner corner portion 120 is cleverly embedded and located in the groove naturally formed by the protrusion of the decorative ridge 130, achieving seamless visual integration.

[0053] Embodiment 2: The production process of hidden building decorative panels mainly includes the following steps:

[0054] S1. Uncoiling and slitting: Uncoil the aluminum alloy coil and adjust the blade spacing of the slitting machine according to the product width requirements. Start the slitting machine to make the blade cut the aluminum strip at a stable speed to form multiple billets of the required width.

[0055] S2. Flattening: Clean the aluminum strip after longitudinal shearing to remove impurities such as oil, dust, etc. on the surface. The cleaned aluminum strip is sent to the flattening machine, and pressure is applied mechanically or hydraulically to cause the aluminum strip to undergo plastic deformation under pressure, thereby achieving a flattening effect.

[0056] S3. Forming and rolling: The processed aluminum strip is fed into a forming machine, where it is bent and shaped by multiple rollers to gradually form the desired cross-sectional shape.

[0057] S4. Straightening: Straighten the formed aluminum profile to ensure the straightness and dimensional accuracy of the profile.

[0058] S5. Cutting: Cut the continuously formed aluminum profiles into individual products according to the product length requirements.

[0059] S6. Grinding: Use a coarse grinding tool to perform preliminary grinding on the cut aluminum profile to remove burrs and large uneven parts on the surface. Based on the coarse grinding, use a fine grinding tool to further grind the aluminum profile to make its surface smoother and more delicate. Pay special attention to the assembly groove 126 of the inner corner 120 and perform detailed grinding to ensure smooth assembly. Finally, polishing is performed to improve the glossiness and aesthetics of the aluminum profile surface.

[0060] S7, anodizing: the polished aluminum plate is subjected to pre-treatment steps such as degreasing, rust removal, and decontamination to ensure that the surface of the aluminum plate is clean and free of impurities. The pre-treated aluminum plate is placed in an anodizing tank and an electric current is passed through for anodizing. During the oxidation process, a dense aluminum oxide film will form on the surface of the aluminum plate, which improves the corrosion resistance and hardness of the aluminum plate. After anodizing, the aluminum plate is cleaned to consolidate the stability of the oxide film and improve its performance.

[0061] S8, spraying. Spray a layer of primer on the surface of the anodized aluminum plate to enhance the adhesion between the coating and the aluminum plate. After the primer dries, spray the topcoat according to the design requirements. The color and glossiness of the topcoat can be customized according to customer needs. After spraying, the aluminum plate is sent to the drying room for drying and curing, so that the coating is fully cured and reaches the best performance.

[0062] Example 3: Reference Figure 3 , a hidden building decorative panel grinding device, comprising:

[0063] A mounting frame 200, used to support other components of the grinding device;

[0064] The grinding roller structure 300 is used to grind the inner corner portion 120 of the decorative plate.

[0065] The mounting frame 200 includes a fixed frame 210 and a sliding frame 220 slidably connected to the fixed frame 210. The sliding track of the sliding frame 220 and the fixed frame 210 is inclined so that the sliding frame 220 is close to or away from the decorative plate to be processed. A first hydraulic cylinder 230 is installed between the fixed frame 210 and the sliding frame 220 to drive the sliding frame 220 to slide.

[0066] Two non-connected limiting sliding grooves 221 are formed at both ends of the sliding frame 220 , one limiting sliding groove 221 is arranged horizontally, and the other is arranged vertically, and the two limiting sliding grooves 221 are arranged vertically.

[0067] The grinding roller structure 300 includes two parallel grinding rollers 310, and both ends of the grinding rollers 310 are inserted into the limiting slide groove 221 to enable the grinding rollers 310 to slide along the limited moving track. The grinding roller 310 is parallel to the length direction of the assembly groove 126 of the decorative plate. The grinding roller 310 is located in the assembly groove 126 to grind the inner corner 120. The grinding roller 310 is a steel wire grinding roller. Specifically, along the length direction of the grinding roller 310, the diameter of the steel wire of the grinding roller 310 gradually decreases, and the arrangement of the steel wire gradually becomes tighter. The decorative plate is transported from one end of the grinding roller 310 with thicker steel bars to the other end, thereby realizing the coarse grinding and fine grinding of the inner corner 120 of the decorative plate.

[0068] The grinding roller structure 300 also includes a support assembly 320 for limiting the distance between the two grinding rollers 310. The support assembly 320 can slide relative to the mounting frame 200, and the sliding track of the support assembly 320 is arc-shaped. The two ends of the track are respectively located at the midpoints of the two limiting slide grooves 221. When the support assembly 320 moves, it drives the grinding roller 310 to slide in the limiting slide groove 221, thereby fully grinding the inner wall of the assembly groove 126. The grinding roller structure 300 also includes a sliding drive assembly 330 for driving the support assembly 320 to slide.

[0069] Reference Figure 3 and Figure 4 The support assembly 320 includes a pivot housing 321 and two swing arms 322 hinged to the pivot housing 321. The two swing arms 322 are respectively located on both sides of the pivot housing 321. The grinding roller 310 is rotatably connected to one end of the swing arm 322 away from the pivot housing 321. The pivot housing 321 rotates two meshing linkage gears 324, and one end of the swing arm 322 close to the pivot housing 321 is fixedly connected to a half-width gear 323. The center of the circle of the half-width gear 323 is coaxially arranged with the rotation axis of the swing arm 322, and the half-width gear 323 is meshed with the linkage gear 324 one-to-one. The two swing arms 322 can rotate toward or away from each other. After rotating toward each other, the distance between the two grinding rollers 310 is reduced, so that the grinding rollers 310 can enter the assembly groove 126.

[0070] Reference Figure 3 The sliding drive assembly 330 includes a guide rod 332, one end of which is rotatably connected to the sliding frame 220, and the rotation axis thereof is arranged perpendicular to the length direction thereof. The rotation center of the guide rod 332 is located at the intersection of the center lines of the two limiting slide grooves 221. The guide rod 332 is provided with a sliding sleeve 333 which is slidably connected to the guide rod 332, and the sliding sleeve 333 is rotatably connected to the pivot housing 321. When the guide rod 332 swings, it can drive the pivot housing 321 to slide, and the sliding track is in an arc shape, and the two ends of the track are respectively located at the midpoints of the two limiting slide grooves 221.

[0071] Reference Figure 3 The sliding drive assembly 330 further includes a second hydraulic cylinder 331, one end of which is rotatably connected to the sliding frame 220, and the other end of which is rotatably connected to the guide rod 332. The second hydraulic cylinder 331 works to control the swing of the guide rod 332, thereby driving the support assembly 320 to slide relative to the sliding frame 220, so that the grinding roller 310 fully grinds the inner wall of the assembly groove 126.

[0072] The sliding drive assembly 330 further includes a third hydraulic cylinder 334, one end of which is fixedly connected to the guide rod 332, and the other end of which is fixedly connected to the sliding sleeve 333. The third hydraulic cylinder 334 works by applying a thrust or a pull to the sliding sleeve 333, thereby driving the pivot housing 321 to move along the length direction of the guide rod 332, so as to realize the two swing arms 322 to rotate toward or away from each other, thereby controlling the distance between the two grinding rollers 310.

[0073] Reference Figure 5 The grinding roller structure 300 further includes a grinding roller rotating assembly 340 for driving the grinding roller 310 to rotate.

[0074] The grinding roller rotating assembly 340 includes a driving motor 341 fixedly connected to the pivot housing 321 and a transmission shaft 342 rotatably connected to the swing arm 322. The driving motor 341 drives the transmission shaft 342 to rotate through the bevel gear, and the transmission shaft 342 drives the grinding roller 310 to rotate through the bevel gear. The driving motor 341 adopts a reduction motor, and the bevel gear connected to its output shaft is located on the side of the transmission shaft 342 away from the driving motor 341. This design can reduce the interference of the bevel gear on the transmission shaft 342 with the bevel gear on the output shaft of the driving motor 341 when the swing arm 322 rotates to drive the transmission shaft 342 to swing.

[0075] The implementation principle of the embodiment of the present application is as follows: the mounting frame 200 is fixed in an appropriate position, and the fixed frame 210 and the sliding frame 220 are kept in the initial position by the first hydraulic cylinder 230, at which time the sliding frame 220 is away from the decorative plate to be processed. The two grinding rollers 310 of the grinding roller structure 300 are kept in a relatively close position by the support assembly 320 so as to be able to smoothly enter the assembly groove 126 of the decorative plate. The first hydraulic cylinder 230 is started to push the sliding frame 220 to move toward the decorative plate along the inclined track of the fixed frame 210. As the sliding frame 220 moves, the two grinding rollers 310 gradually approach the decorative plate and are ready to enter the assembly groove 126. When the sliding frame 220 moves to a position close enough, the two grinding rollers 310 enter the interior of the assembly groove 126 through the opening of the assembly groove 126.

[0076] The third hydraulic cylinder 334 contracts, driving the pivot housing 321 to move, and then driving the swing arm 322 to open, so that the two grinding rollers 310 move away from each other. The grinding roller rotating assembly 340 is started, and the driving motor 341 drives the grinding roller 310 to start rotating through the bevel gear transmission shaft 342. At the same time, the second hydraulic cylinder 331 is started, driving the support assembly 320 to slide along the limiting slide groove 221, so that the grinding roller 310 performs a grinding operation on the inner wall of the assembly groove 126.

[0077] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A hidden building decorative panel, comprising an aluminum substrate (100), characterized in that: One end of the aluminum substrate (100) is bent to form a positive corner portion (110), and one end of the aluminum substrate (100) away from the positive corner portion (110) is bent to form a negative corner portion (120). The negative corner portion (120) is provided with an assembly groove (126) for accommodating the positive corner portion (110) of another aluminum substrate (100), and the positive corner portion (110) is engaged with the assembly groove (126); the positive corner portion (110) comprises a first protrusion (111) protruding toward the front side of the aluminum substrate (100) and a second protrusion (112) protruding toward the back side of the aluminum substrate (100), and the negative corner portion (120) comprises a first connecting plate (121), a second connecting plate (122) and a third connecting plate (123) formed integrally, and the second connecting plate (122) is vertically connected to the positive corner portion (111). The third connecting plate (123) is vertically fixedly connected to the second connecting plate (122) and is perpendicular to the aluminum substrate (100). One end of the first connecting plate (121) is fixedly connected to the aluminum substrate (100), and the other end is connected to an end of the second connecting plate (122) away from the third connecting plate (123). The end of the first connecting plate (121) away from the second connecting plate (122) is bent toward one side of the third connecting plate (123) to form an abutment portion (124), and the third connecting plate (123) is bent to form a convex ridge (125). When the two aluminum substrates (100) are clamped, the abutment portion (124) abuts against the intersection of the first protrusion (111) and the aluminum substrate (100), and the convex ridge (125) abuts against the side wall of the second protrusion (112).

2. The hidden building decorative panel according to claim 1, characterized in that: The aluminum substrate (100) is bent to form a plurality of decorative edges (130) protruding toward the front, the inner corner portion (120) is located in a groove formed by the protrusion of the decorative edge (130), the first connecting plate (121) is connected to the decorative edge (130), and the shape of the first connecting plate (121) is the same as the shape of one side of the decorative edge (130), and the two are in contact with each other.

3. The production process of the hidden building decorative panel according to any one of claims 1-2, characterized in that: The steps include: S1. Uncoiling and longitudinal shearing: Uncoiling the aluminum alloy coil, and then longitudinally shearing the uncoiling aluminum strip to obtain a billet of the required width; S2, flat plate: flatten the cut aluminum strip; S3, forming and rolling: the processed aluminum strip is fed into a forming machine, where it is bent and shaped by multiple rollers to gradually form the desired cross-sectional shape; S4, straightening: straighten the formed aluminum profile to ensure the straightness and dimensional accuracy of the profile; S5. Cutting: Cut the continuously formed aluminum profiles into individual products according to the product length requirements; S6, grinding: grinding the cut aluminum profile to remove surface burrs and uneven parts; grinding the assembly groove (126) of the inner corner (120) using a hidden building decorative panel grinding device; S7, anodizing: anodizing the formed aluminum plate; S8. Spraying.

4. A hidden building decorative panel grinding device, applied to the production process of hidden building decorative panels according to claim 3, characterized in that: include: The mounting frame (200) has two non-connected limiting slide grooves (221) at both ends, and the two limiting slide grooves (221) are arranged vertically; The grinding roller structure (300) comprises two grinding rollers (310) arranged in parallel and a support assembly (320) for limiting the distance between the two grinding rollers (310), wherein both ends of the grinding roller (310) are inserted into the limiting slide groove (221), and the support assembly (320) can move relative to the mounting frame (200), and the moving track is in an arc shape, and both ends of the moving track are respectively located at the midpoint position of the two limiting slide grooves (221); The grinding roller structure (300) further comprises a grinding roller rotating assembly (340) for driving the grinding roller (310) to rotate, and a sliding driving assembly (330) for driving the supporting assembly (320) to slide; the grinding roller (310) is parallel to the length direction of the assembly groove (126) of the decorative plate; during grinding, the two grinding rollers (310) are located in the assembly groove (126), and the sliding driving assembly (330) drives the supporting assembly (320) to slide, so as to drive the grinding roller (310) to move along the limiting sliding groove (221), thereby grinding the inner wall of the assembly groove (126).

5. The hidden building decorative panel grinding device according to claim 4, characterized in that: The support assembly (320) comprises a pivot housing (321) and two swing arms (322) hinged to the pivot housing (321), the two swing arms (322) being respectively located on both sides of the pivot housing (321), the grinding roller (310) being rotationally connected to one end of the swing arm (322) away from the pivot housing (321), the pivot housing (321) being rotationally connected to two mutually meshing linkage gears (324), one end of the swing arm (322) close to the pivot housing (321) being fixedly connected to a half-width gear (323), the center of the half-width gear (323) being coaxially arranged with the rotation axis of the swing arm (322), and the half-width gear (323) being meshed one-to-one with the linkage gear (324).

6. The hidden building decorative panel grinding device according to claim 5, characterized in that: The mounting frame (200) comprises a fixed frame (210) and a sliding frame (220) slidably connected to the fixed frame (210); the sliding tracks of the sliding frame (220) and the fixed frame (210) are perpendicular to the sliding track of the support assembly (320); the limiting sliding groove (221) is provided on the sliding frame (220); the support assembly (320) is slidably connected to the sliding frame (220); and a first hydraulic cylinder (230) for driving the sliding frame (220) to slide is provided between the fixed frame (210) and the sliding frame (220).

7. The hidden building decorative panel grinding device according to claim 6, characterized in that: The sliding drive assembly (330) comprises a guide rod (332) having one end rotatably connected to the sliding frame (220) and a second hydraulic cylinder (331) driving the guide rod (332) to rotate. The rotation axis of the guide rod (332) is arranged perpendicular to its length direction. The rotation center of the guide rod (332) is located at the intersection of the center lines of the two limiting sliding grooves (221). The other end of the guide rod (332) is connected to the support assembly (320). One end of the second hydraulic cylinder (331) is rotatably connected to the sliding frame (220), and the other end is rotatably connected to the guide rod (332).

8. The hidden building decorative panel grinding device according to claim 7, characterized in that: The sliding drive assembly (330) further comprises a sliding sleeve (333) rotatably connected to the pivot housing (321) and a third hydraulic cylinder (334) driving the sliding sleeve (333) to move; the sliding sleeve (333) is sleeved on the guide rod (332) and the two are slidably connected; one end of the third hydraulic cylinder (334) is fixedly connected to the guide rod (332), and the other end thereof is fixedly connected to the sliding sleeve (333).

9. The hidden building decorative panel grinding device according to claim 5, characterized in that: The grinding roller rotating assembly (340) comprises a driving motor (341) fixedly connected to the pivot housing (321) and a transmission shaft (342) rotatably connected to the swing arm (322); the driving motor (341) drives the transmission shaft (342) to rotate via a bevel gear, and the transmission shaft (342) drives the grinding roller (310) to rotate via the bevel gear.

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