A highly malleable aluminum composite panel curtain wall splicing process and splicing structure

Abstract

This invention discloses a highly malleable aluminum composite panel (ACP) curtain wall splicing process, comprising the following steps: S10, bending the ACP; S20, end-to-end splicing; S30, mechanical sealing; step S10 includes the following steps: S101, grooving; S102, first bending; S103, second bending; S104, filling with structural adhesive. This highly malleable ACP curtain wall splicing process and structure involves laser grooving the surface of the ACP and then performing a first internal bend. A reinforcing member is then pressed into the inner side of the bend for a second internal bend, and the reinforcing member is fixedly connected to the bend. This ensures a smooth, rounded transition at the bend on the outer surface of the ACP groove, improving aesthetics, preventing scratches to installers, ensuring the stability of the curtain wall structure, preventing deformation under pressure, improving quality, and extending service life.

Description

Technical Field

[0001] This invention relates to the production process of aluminum composite panel curtain walls, and in particular to a highly malleable aluminum composite panel curtain wall splicing process and splicing structure. Background Technology

[0002] Aluminum composite panels are a type of composite material formed by combining two layers of aluminum sheets and a plastic core. They are lightweight, waterproof, fireproof, soundproof, and aesthetically pleasing, and are therefore widely used in interior and exterior decoration, especially as exterior wall panels and curtain wall panels for outdoor buildings.

[0003] To ensure the structural strength of aluminum composite panel curtain walls, the thickness of the aluminum composite panels is usually increased. However, this makes the aluminum composite panels difficult to bend and shape. To address this, Chinese utility model patent CN217353089U discloses an easily bendable aluminum composite panel for curtain walls. It facilitates bending of the aluminum composite panel by opening bending grooves on the main body of the curtain wall panel, and then uses iron wire to fix it by passing through two adjacent round holes of the positioning piece, thus ensuring the flexibility of the main body of the curtain wall aluminum composite panel. The hexagonal pressure-resistant honeycomb core inside the upper and lower bending-resistant plates makes the main body of the curtain wall aluminum composite panel have good pressure resistance.

[0004] However, in the aforementioned device, the bending groove faces outwards, which increases the opening size of the bending groove on the surface of the curtain wall panel during bending. Furthermore, the opening size increases with the bending angle, reducing the structural stability of the aluminum curtain wall panel. After bending, the groove is exposed, affecting aesthetics and potentially causing scratches to installers. Additionally, the bending groove reduces the overall thickness of the aluminum curtain wall panel, making the groove area prone to deformation under external forces. This leads to changes in the curtain wall's dimensions due to compression and impact forces during processing and installation, reducing quality and shortening its lifespan.

[0005] Therefore, it is necessary to improve the existing aluminum composite panel curtain wall structure and splicing process. Summary of the Invention

[0006] The purpose of this invention is to overcome the defects in the existing technology and provide a highly malleable aluminum composite panel curtain wall splicing process and splicing structure that ensures aesthetics, safety and structural stability, improves quality and extends service life.

[0007] To solve the above technical problems, the present invention provides a highly malleable aluminum composite panel curtain wall splicing process, comprising the following steps: S10, Bending aluminum composite panel: A flat aluminum composite panel is bent in multiple places to form an aluminum composite groove, and a reinforcing member is fixed on the inside of the bending part of the aluminum composite panel. The aluminum composite groove includes a front panel and a back panel for facing away from the wall and facing the wall respectively. Two back panels are provided and are distributed at intervals on the same plane. S20, End-to-end splicing: A cover plate is fixedly installed at the opening of the aluminum-plastic trough obtained in S10, so that the cover plate and the aluminum-plastic trough form a closed-loop structure. S30, Mechanical seal; sealing elements are fixed at both ends inside the closed-loop structure, the sealing elements are fixedly connected to the reinforcing element, and the circumferential outer edge of the sealing elements is sealed to the inner wall of the aluminum-plastic groove and the cover plate; Step S10 includes the following steps: S101. Grooving: Using a laser to irradiate one side of the aluminum composite panel and moving the laser along a straight line to form a straight groove on the aluminum composite panel, exposing the plastic layer inside the groove. S102, One-time bending: Using the groove obtained in step S10 as the folding edge, bend the aluminum composite panel inward, and the included angle between the two panels at the bending point is greater than the preset included angle. S103, Secondary bending: Press a reinforcing strip extending along the length of the groove into the inner side of the bending angle formed after the first bending, so that the outer edge of the reinforcing strip abuts against the two side panels of the bending point, and continue to bend the aluminum composite panel inward with the groove as the folding edge to reduce the included angle of the two side panels of the bending point until it is consistent with the preset included angle. S104. Filling with structural adhesive: Structural adhesive is injected between the reinforcing strip and the two side panels of the bend to form a cured adhesive strip, which is fixed between the groove and the reinforcing strip.

[0008] Preferably, in order to ensure the bending accuracy of the aluminum composite panel, in step S103, positioning support members are provided on the outer sides of both panels at the bending point. The positioning support members have positioning support surfaces that fit against the side wall of the aluminum composite groove, and the included angle of the positioning support surfaces is consistent with the preset included angle.

[0009] Preferably, in order to facilitate adjustment of the angle of the support surface, the positioning support is rotatably configured with its rotation axis parallel to the extension direction of the groove. The positioning support is connected to a driving component, which is used to drive the positioning support to adjust the angle of the positioning support surface.

[0010] Preferably, in order to facilitate the fixed connection between the reinforcing strip and the aluminum composite panel, in step S103, the reinforcing strip is a reinforcing tube, the reinforcing tube is provided with an injection port and an outlet port, the circumferential outer edge of the reinforcing tube is fitted with the inner walls on both sides of the bend and forms an injection channel, the injection channel is connected to the inner cavity of the reinforcing tube through the outlet port, and the cured adhesive strip fills the space between the reinforcing tube and the injection channel.

[0011] Preferably, in order to ensure a sealed connection between the reinforcing tube and the grooved surface of the aluminum composite panel, a sponge sleeve is provided over the reinforcing tube, and the reinforcing member in step S10 is formed by connecting the reinforcing tube, the sponge sleeve and the curing strip.

[0012] Preferably, to facilitate assembly and bending of the aluminum composite panel, both ends of the reinforcing tube are sealed and provided with threaded blind holes. The threaded blind holes are threadedly connected to the first bolt and the second bolt. The sealing element is threadedly connected to the inner wall of the threaded blind hole through the first bolt. In step S103, the second bolt connected to the threaded blind hole is driven to move up and down by the lifting device. In conjunction with the positioning support, the included angle of the two side panels at the bending point is bent to be consistent with the preset included angle.

[0013] Preferably, in order to strengthen the connection between the cover plate and the aluminum-plastic groove, the cover plate is provided with a folded part that extends into the aluminum-plastic groove. The two ends of the folded part abut against the sealing element. The folded part and the inner wall of the aluminum-plastic groove form a filling channel. The filling channel is permeated by a pre-embedded bolt perpendicular to its axis and is used to inject structural adhesive to cure and form a reinforcing strip filled in the filling channel.

[0014] Preferably, to enhance sealing, the sealing element includes a sealing plate, which has a stepped hole for the first bolt to be inserted and a sealing channel extending to the circumferential outer edge of the sealing element. The two ends of the sealing channel are respectively connected to the ends of the stepped hole and the groove. After step S30, step S40 is further included: injection sealing: structural adhesive is injected into the ends of the stepped hole, the sealing channel and the groove to form a cured adhesive block, which fills the space between the groove, the sealing channel and the stepped hole.

[0015] To address the aforementioned technical problems, the present invention also provides a highly malleable aluminum composite panel curtain wall splicing structure, comprising: The aluminum-plastic channel is formed by bending a flat aluminum-plastic sheet in multiple places. Before bending, a groove is pre-cut on one side of the aluminum-plastic sheet by laser. Then, the groove formed on the aluminum-plastic sheet is bent inward twice to form a folded angle. The aluminum-plastic channel includes a front panel and a back panel. The front panel and the back panel are used to face away from the wall and face the wall, respectively. There are two back panels, which are spaced apart on the same plane. The reinforcing member is provided one-to-one with the inner side of the bending part of the aluminum-plastic channel and is spaced apart from both ends of the aluminum-plastic channel. When the aluminum-plastic plate is bent for the second time, it abuts against the inner wall on both sides of the bending part of the aluminum-plastic channel. After the aluminum-plastic plate completes the second bending, it is fixedly connected to the aluminum-plastic channel. A cover plate is placed over the opening of the aluminum-plastic trough and is fixedly connected to the aluminum-plastic trough to form a closed-loop structure. A sealing element, which is fixedly connected to the reinforcing element and whose circumferential outer edge is sealed to the inner wall of the aluminum-plastic groove and the cover plate.

[0016] Preferably, in order to ensure the connection strength between the reinforcing member and the aluminum-plastic trough, and to avoid deformation at the bending part of the aluminum-plastic trough, the reinforcing member includes a hollow reinforcing tube, which is provided with an injection port and an outlet port. The reinforcing tube and the inner wall of the bending part of the aluminum-plastic trough form an injection channel. The injection channel communicates with the inner cavity of the reinforcing tube through the outlet port. The reinforcing member also includes a cured adhesive strip formed by curing structural adhesive that fills the injection channel and the reinforcing tube.

[0017] In summary, compared with existing technologies, the high-ductility aluminum composite panel curtain wall splicing process and structure of this invention, by laser-grooving the surface of the aluminum composite panel and then performing an inner bend, followed by pressing a reinforcing member into the inner side of the bend and performing a second inner bend, and then fixing the reinforcing member to the bend, ensures a smooth transition at the bend on the outer surface of the aluminum composite panel, improving aesthetics, preventing scratches to installation workers, ensuring the stability of the curtain wall structure, preventing deformation under pressure, improving quality, and extending service life. Attached Figure Description

[0018] Figure 1 This is a process flow diagram of the high-ductility aluminum composite panel curtain wall splicing process of the present invention; Figure 2 This is a process flow diagram of the bending aluminum composite panel of the present invention; Figure 3 This is a schematic diagram of the high-ductility aluminum composite panel curtain wall splicing structure of the present invention; Figure 4 yes Figure 3 An explosion diagram; Figure 5 yes Figure 3 An illustration of the explosion from another perspective; Figure 6 yes Figure 3 Structural diagram omitting the seal; Figure 7 yes Figure 6 An explosion diagram; Figure 8 yes Figure 6Top view; Figure 9 yes Figure 6 Structural diagram omitting the cover plate; Figure 10 yes Figure 9 An explosion diagram; Figure 11 yes Figure 9 An illustration of the explosion from another perspective; Figure 12 This is a schematic diagram of the connection structure of the highly malleable aluminum composite panel curtain wall of the present invention; Figure 13 yes Figure 12 An explosion diagram; Figure 14 This is a schematic diagram of a device used to perform a second bending of an aluminum composite panel after a first bending. Figure 15 yes Figure 14 An explosion diagram; Figure 16 yes Figure 14 The front view; Figure 17 This is an exploded view of the connection structure between the positioning support and the drive assembly; Figure 18 This is a structural schematic diagram of the positioning support component; In the diagram: 1. Aluminum-plastic channel; 11. Front panel; 12. Back panel; 13. Side panel; 14. Groove; 15. Aluminum-plastic panel; 2. Cover plate; 21. Fold-over section; 22. Reinforcing strip; 23. Embedded bolt; 24. Fastening bolt; 25. Fastening nut; 3. Sealing element; 31. Sealing plate; 311. Stepped hole; 312. Sealing channel; 32. First bolt; 33. Curing adhesive block; 4. Reinforcing element; 41. Reinforcing tube; 411. Injection port; 412. Outlet port; 413. Threaded blind hole; 42. Curing strip; 43. Sponge sleeve; 5. Positioning support; 51. Support frame; 52. Support roller; 6. Drive assembly; 61. Worktable; 62. Motor; 63. Lead screw; 64. Screw sleeve; 65. Bearing; 66. Guide rod; 67. Crossbar; 68. Connecting rod; 7. Lifting device; 71. Bracket; 72. Hydraulic cylinder; 73. Bushing; 74. Second bolt; 8. Connecting assembly; 81. First angle steel; 82. Connecting nut; 9. Fixing assembly; 91. Second angle steel; 93. Third angle steel; 94. Fixing bolt; 95. Fixing nut. Detailed Implementation

[0019] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solutions of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0020] like Figure 1 As shown, the present invention provides a highly malleable aluminum composite panel curtain wall splicing process, comprising the following steps: S10, Bending aluminum composite panel 15: The flat aluminum composite panel 15 is bent in multiple places to form an aluminum composite groove 1, and a reinforcing member 4 is fixed inside the bending part of the aluminum composite panel 15. The aluminum composite groove 1 includes a front panel 11 and a back panel 12 for facing away from the wall and facing the wall respectively. There are two back panels 12 and they are spaced apart on the same plane. S20, End-to-end splicing: A cover plate 2 is fixedly installed at the opening of the aluminum-plastic trough 1 obtained in S10, so that the cover plate 2 and the aluminum-plastic trough 1 form a closed-loop structure. S30, Mechanical seal; sealing element 3 is fixed at both ends inside the closed-loop structure, sealing element 3 is fixedly connected to reinforcing element 4, and the outer edge of sealing element 3 is sealed to the inner wall of aluminum-plastic groove 1 and cover plate 2. like Figure 2 As shown, step S10 includes the following steps: S101. Grooving: Use a laser to irradiate one side of the aluminum composite panel 15 and move the laser along a straight line to form a straight groove 14 on the aluminum composite panel 15, exposing the plastic layer inside the groove 14. S102, One-time bending: Using the groove 14 obtained in step S10 as the folding edge, bend the aluminum composite panel 15 inward, and the included angle between the two panels at the bending point is greater than the preset included angle. S103, Secondary bending: Press a reinforcing strip extending along the length of the groove 14 into the inner side of the bending angle formed after the first bending, so that the outer edge of the reinforcing strip abuts against the two side panels at the bending point, and continue to bend the aluminum composite panel 15 inward with the groove 14 as the folding edge to reduce the included angle of the two side panels at the bending point until it is consistent with the preset included angle. S104, Filling with structural adhesive: Inject structural adhesive between the reinforcing strip and the two side panels at the bend to form a cured adhesive strip 42, which is fixed between the groove 14 and the reinforcing strip.

[0021] After adopting the above process, the aluminum composite panel is bent in more than 15 places to form the aluminum composite groove 1. Then, the two back panels 12 of the aluminum composite groove 1 are fixedly connected to the cover plate 2 to form a closed-loop structure. Sealing elements 3 are fixedly installed at both ends of the closed-loop structure to form a curtain wall.

[0022] Unlike existing technologies, in the splicing process of this invention, when bending various parts of the aluminum composite panel 15, laser grooving is first used to break the aluminum layer on the surface of the aluminum composite panel 15, exposing the plastic layer in the center to form a groove 14. Then, the groove 14 is used as the folding edge to be bent inward once. This step can be performed by a sheet metal bending machine, so that after the first bend, the included angle between the two panels on both sides of the bent part is greater than the preset included angle, which is the included angle of the two panels on both sides of the bent part of the final product. In other words, the first bend mainly slightly bends the aluminum composite panel 15, so that the two panels on both sides of the bent part form a certain included angle.

[0023] Based on the above, the bent part is bent a second time. During bending, a reinforcing strip is pressed into the groove 14, which is the inner side of the bending angle. The outer edge of the reinforcing strip abuts against the two side panels of the bent part. As the pressing depth increases, the included angle formed by the two side panels of the bent part gradually decreases until it is consistent with the preset included angle. Then, the reinforcing strip is fixedly connected to the aluminum composite panel 15. After the fixing is completed, the outer edge of the reinforcing strip is fixedly connected to the two side panels of the bent part of the aluminum composite panel 15.

[0024] The aluminum composite panel 15 is bent at one point using the above method, and then the other parts of the aluminum composite panel 15 are bent in the same way. Finally, the aluminum composite panel 15 is formed into an aluminum composite groove 1 through multiple sequential double bends. The main structure of the aluminum composite groove 1 is as follows. Figures 3-11 As shown, the aluminum-plastic channel 1 mainly includes a front panel 11, two back panels 12 located on the same plane and spaced apart, and a side panel 13 integrally connected between the front panel 11 and the back panel 12. The front panel 11 is used to face away from the wall, while the back panel 12 is used to face the wall.

[0025] After the aluminum-plastic channel 1 is bent and formed, the cover plate 2 is fixedly connected between the two back panels 12, so that the aluminum-plastic channel 1 and the cover plate 2 form a closed-loop structure. Then, the sealing element 3 is installed at both ends of the inner side of the above-mentioned ring-shaped structure, so that the aluminum-plastic channel 1, the cover plate 2 and the sealing element 3 are combined to form a cavity structure, which is finally formed into a curtain wall.

[0026] When processing the aluminum composite panel 15 using the above process, compared with the existing technology, the use of a laser to groove the surface of the aluminum composite panel 15 allows for precise control of the cross-section and depth of the groove 14 formed on the surface of the aluminum composite panel 15 by controlling the laser power, the distance between the laser and the aluminum composite panel 15, and the laser's moving speed. This avoids significant damage to the structure of the aluminum composite panel 15 and affects the overall stability of the curtain wall. The formed groove 14 is convenient for use as a folding edge, allowing the panels on both sides of the groove 14 to be bent. Moreover, the bending is done by inward bending, which compresses the internal space dimensions of the groove 14. The reduction in the cross-section of the groove 14 allows the panels on both sides of the groove 14 to rotate closer together, preventing the increased groove area after outward bending from affecting the structural stability of the aluminum composite panel 15. Furthermore, the inward bending design allows for a smooth transition between the panels on both sides of the bent section, specifically between the front panel 11 and the side panel 13, and between the side panel 13 and the back panel 12. This not only ensures the aesthetic appeal of the overall curtain wall structure but also prevents contact between the groove 14 and workers during handling and installation, thus guaranteeing operational safety.

[0027] Based on the above, during the secondary bending, a reinforcing strip is added to the inside of the bending area. After the secondary bending is completed, structural adhesive is injected, and the structural adhesive cures into a cured adhesive strip 42. The cured adhesive strip 42 is fixed between the inside of the panel of the aluminum-plastic channel 1 and the reinforcing strip. The cured adhesive strip 42 and the reinforcing strip combine to form a reinforcing member 4, which supports the panel from the inside of the aluminum-plastic channel 1, preventing the bending area from deforming and being damaged under pressure. In this way, the stability of the above-mentioned curtain wall splicing structure is ensured and the service life is extended.

[0028] A further improvement is that in step S103, the reinforcing strip is a reinforcing tube 41, which is provided with an injection port 411 and an outlet port 412. The outer circumferential edge of the reinforcing tube 41 fits against the inner walls on both sides of the bend and forms an injection channel. The injection channel is connected to the inner cavity of the reinforcing tube 41 through the outlet port 412. The cured adhesive strip 42 fills the space between the reinforcing tube 41 and the injection channel. The reinforcing tube 41 is covered with a sponge sleeve 43. The reinforcing member 4 in step S10 is formed by connecting the reinforcing tube 41, the sponge sleeve 43 and the cured adhesive strip 42.

[0029] With the above structure, after the secondary bending and forming, structural adhesive is injected into the injection port 411, filling the reinforcing tube 41. The adhesive then flows into the injection channel through the outlet 412. Under pressure, the sponge sleeve 43 ensures a sealed connection between the reinforcing tube 41 and the panels on both sides of the bending section. Simultaneously, the compressed sponge can enter the groove 14, and the structural adhesive fills the gaps in the sponge sleeve 43, eventually curing to form a cured adhesive strip 42. The cured adhesive strip 42 fills the space between the reinforcing tube 41, the sponge sleeve 43, and the injection channel, enhancing the fixed connection strength between the reinforcing tube 41 and the inner wall of the aluminum-plastic groove 1. Furthermore, it increases the contact area between the reinforcing tube 41 and the inner wall of the aluminum-plastic groove 1, thereby strengthening the structural strength of the bending section of the aluminum-plastic groove 1, preventing deformation under pressure, and thus improving the quality of the curtain wall and extending its service life.

[0030] A further improvement is that the two ends of the reinforcing tube 41 are sealed and are provided with threaded blind holes 413. The threaded blind holes 413 are threadedly connected to the first bolt 32 and the second bolt 74. The sealing member 3 is threadedly connected to the inner wall of the threaded blind hole 413 through the first bolt 32. In step S103, the second bolt 74 connected to the threaded blind hole 413 is driven to move up and down by the lifting device 7. In conjunction with the positioning support member 5, the included angle of the two side panels at the bend is bent to be consistent with the preset included angle.

[0031] With the above structure, on the one hand, it is convenient to screw the second bolt 74 into the threaded blind hole 413 during the secondary bending. By controlling the position movement of the second bolt 74, the position of the reinforcing tube 41 can be changed so as to perform secondary bending of the aluminum-plastic plate 15. On the other hand, after the aluminum-plastic plate 15 is bent into the aluminum-plastic groove 1, the second bolt 74 can be screwed into the threaded blind hole 413 to fix the sealing element 3 to the reinforcing tube 41, thereby completing the installation of the sealing element 3.

[0032] A further improvement is that, in step S103, positioning support members 5 are provided on the outer sides of both panels at the bend. The positioning support member 5 has a positioning support surface that fits against the side wall of the aluminum-plastic groove 1, and the included angle of the positioning support surface is consistent with the preset included angle. The positioning support member 5 is rotatably set and the rotation axis is parallel to the extension direction of the groove 14. The positioning support member 5 is connected to a drive component 6, which is used to drive the positioning support member 5 to adjust the angle of the positioning support surface.

[0033] Specifically, when performing a secondary bending of the aluminum composite panel 15, the following method is used: Figures 14-18 The bending device shown includes two positioning support members 5 facing each other. Both ends of the two positioning support members 5 are provided with lifting devices 7, and the output end of the lifting device 7 is connected to a second bolt 74.

[0034] More specifically, the positioning support 5 includes a U-shaped support frame 51, with a support roller 52 arranged on the inner side of the support frame 51. The support roller 52 rotates around its own axis on the support frame 51. The support rollers 52 are closely arranged along the inner depth of the support frame 51, and the positioning support 5 is formed by the roller surface of the support roller 52.

[0035] The drive assembly 6 includes a horizontal worktable 61, a support frame 51 rotating above the worktable 61, the rotation axis of the support frame 51 being parallel to the axial direction of the support roller 52, a motor 62 fixed above the worktable 61, a lead screw 63 fixedly connected to the motor 62 along its coaxial axis, the axial direction of the lead screw 63 being perpendicular to the axial direction of the support roller 52, a bearing 65 being provided at the end of the lead screw 63 away from the motor 62, the inner ring of the bearing 65 being fixedly connected to the lead screw 63, and the outer ring of the bearing 65 being fixed to the worktable 61, a threaded sleeve 64 being threadedly connected to the lead screw 63, guide rods 66 being slidably fitted at both ends of the threaded sleeve 64, the axial direction of the guide rods 66 being parallel to the axial direction of the lead screw 63 and fixed directly above the worktable 61, a crossbar 67 being connected to the threaded sleeve 64, the axial direction of the crossbar 67 being parallel to the axial direction of the support roller 52, and the crossbar 67 being hinged to the worktable 61 by a plurality of connecting rods 68 spaced apart along its axial direction.

[0036] The lifting device 7 includes a U-shaped support 71 with its opening facing downwards. Both ends of the support 71 are fixed above the two worktables 61. A hydraulic cylinder 72 is installed on the support 71. The cylinder of the hydraulic cylinder 72 is fixed above the support 71 and facing downwards. A bushing 73 is fixedly connected to the bottom end of the piston rod of the hydraulic cylinder 72. The axial direction of the bushing 73 is parallel to the axial direction of the support roller 52. A second bolt 74 is sealed and passed through the inner side of the bushing 73.

[0037] When the aluminum composite panel 15 is bent a second time using the above-mentioned device, the motor 62 is started to drive the lead screw 63 to rotate, so that the screw sleeve 64 moves axially along the guide rod 66. Through the crossbar 67 and the connecting rod 68, it acts on the support frame 51 to adjust the angle position of the support frame 51, and then adjust the angle position of the positioning support surface formed by each support roller 52. This changes the included angle between the positioning support surfaces in the two positioning support members 5 so that it is consistent with the preset included angle. Then, the aluminum composite panel 15 after the first bend is placed on the two positioning support members 5, so that the groove 14 formed by the first bend faces upward and is located directly above the two positioning support members 5.

[0038] A reinforcing tube 41 with a sponge sleeve 43 on its outer periphery is inserted into the inner side of the bent part of the aluminum composite panel 15, with the glue injection port 411 of the reinforcing tube 41 facing upward. The hydraulic cylinder 72 is controlled to run, and the position of the bushing 73 is adjusted so that it is coaxial with the threaded blind hole 413 on the reinforcing tube 41. The second bolt 74 is rotated on the bushing 73 so that the shank of the second bolt 74 is screwed into the threaded blind hole 413 of the reinforcing tube 41. In this way, the threaded connection between the output end of the lifting device 7 and the reinforcing tube 41 is achieved.

[0039] Then, the hydraulic cylinder 72 drives the bushing 73 to descend, pressing it down onto the aluminum composite panel 15 through the reinforcing tube 41, causing the aluminum composite panel 15 to bend twice. The rotation of the support rollers 52 on the support frame 51 helps reduce the wear on the aluminum composite panel 15. During the second bending, the included angle formed by the two side panels at the bending point of the aluminum composite panel 15 gradually decreases until the two side panels are in contact with the support rollers 52 on the positioning support members 5 on both sides. At this time, the included angle formed by the two side panels is consistent with the preset included angle. The hydraulic cylinder 72 maintains the height position of the bushing 73. At this time, the two side panels at the bending point of the aluminum composite panel 15 are sandwiched between the support rollers 52 and the reinforcing tube 41, and part of the sponge sleeve 43 is pressed into the groove 14. On this basis, structural adhesive is injected into the glue injection port 411, so that the structural adhesive fills the reinforcing tube 41, the glue injection channel and the mesh gap of the sponge sleeve 43, and finally forms a cured adhesive strip 42, realizing the completion of the second bending. The reinforcing tube 41 is fixedly connected to the aluminum composite panel 15. Afterwards, rotate the second bolt 74 in the opposite direction to disengage it from the threaded blind hole 413, and then remove the aluminum composite panel 15 after the second bending.

[0040] A further improvement is that the cover plate 2 is provided with a folded part 21 that extends into the aluminum-plastic groove 1. The two ends of the folded part 21 abut against the sealing element 3. The folded part 21 and the inner wall of the aluminum-plastic groove 1 form a filling channel. The filling channel is permeated by a pre-embedded bolt 23 perpendicular to its axis and is used to inject structural adhesive to cure and form a reinforcing strip 22 filled in the filling channel.

[0041] Specifically, such as Figure 4 , Figures 6-8 As shown, with the above structure, the folded part 21 extending into the aluminum-plastic groove 1 can form a filling channel with the back panel 12. After the pre-embedded bolt 23 passes through the folded part 21, the head of the pre-embedded bolt 23 abuts against the folded part 21, and the rod of the pre-embedded bolt 23 passes through the back panel 12. Then, structural adhesive is injected into the filling channel, and the structural adhesive is cured to form a reinforcing strip 22. This not only completes and strengthens the fixed connection between the cover plate 2 and the aluminum-plastic groove 1, but also fixes the position of the pre-embedded bolt 23. In addition, since the pre-embedded bolt 23 passes through the folded part 21 and the back panel 12, it can prevent the aluminum-plastic groove 1 and the cover plate 2 from sliding relative to each other, ensuring precise docking.

[0042] To facilitate the connection between the formed curtain wall and the wall surface, fastening bolts 24 are pre-installed on the cover plate 2. The head of the fastening bolt 24 faces the back panel 12, and the rod is threaded with a fastening nut 25. Both the fastening bolt 24 and the fastening nut 25 are spaced apart from the back panel 12.

[0043] The above structure facilitates the connection between curtain walls and the connection between the curtain wall and the wall surface. Specifically, for example... Figure 12 and Figure 13As shown, two curtain walls are in the same length direction, and a connecting component 8 is provided between their adjacent ends. The connecting component 8 includes a first angle steel 81. The two ends of the first angle steel 81 are sleeved on the pre-embedded bolts 23. The pre-embedded bolts 23 are threaded with connecting nuts 82. The first angle steel 81 is sandwiched between the connecting nuts 82 and the cover plate 2, thereby completing the connection between the two curtain walls.

[0044] The fastening bolt 24 is connected to the wall through the fixing component 9. Specifically, the fixing component 9 includes a second angle steel 91 and a third angle steel 93 that are parallel in length. One of the folded plates of the second angle steel 91 is sleeved on the rod of the fastening bolt 24 and pressed onto the cover plate 2 by the fastening nut 25. The other folded plate is fixedly connected to one of the folded plates of the third angle steel 93 through the threaded fixing bolt 94 and fixing nut 95. The other folded plate of the third angle steel 93 is used to fix and connect to the wall, thereby completing the fixed connection between the curtain wall and the wall.

[0045] A further improvement is that the seal 3 includes a sealing plate 31, on which a stepped hole 311 for inserting a first bolt 32 is provided and a sealing channel 312 extending to the outer periphery of the seal 3. The two ends of the sealing channel 312 are respectively connected to the ends of the stepped hole 311 and the groove 14. After step S30, step S40 is also included: injection sealing: structural adhesive is injected into the ends of the stepped hole 311, the sealing channel 312 and the groove 14 to form a cured adhesive block 33. The cured adhesive block 33 fills the space between the groove 14, the sealing channel 312 and the stepped hole 311.

[0046] Specifically, such as Figures 3-6 As shown, after the formed aluminum-plastic groove 1 is fixedly connected to the cover plate 2, a sealing plate 31 is inserted into the end of the aluminum-plastic groove 1. A first bolt 32 is screwed into the stepped hole 311 of the sealing plate 31. After the sealing plate 31 is fixed to the end of the reinforcing tube 41 by the first bolt 32, structural adhesive is injected into the end of the stepped hole 311, the sealing channel 312 and the groove 14. After the structural adhesive is filled, it is cured to form a cured adhesive block 33, which can fill the gaps of the groove 14, the sealing channel 312 and the stepped hole 311, so that the sealing plate 31, the first bolt 32 and the cured adhesive block 33 are connected as one, forming a sealing element 3, thereby strengthening the connection between the aluminum-plastic groove 1, the cover plate 2 and the sealing plate 31.

[0047] This invention also discloses a highly malleable aluminum composite panel curtain wall splicing structure, such as... Figures 3-11 As shown, it includes: Aluminum-plastic channel 1 is formed by bending a flat aluminum-plastic panel 15 in multiple places. Before bending, a groove is pre-cut on one side of the aluminum-plastic panel 15 by laser. Then, the groove 14 formed on the aluminum-plastic panel 15 is bent inward twice to form a folded corner. The aluminum-plastic channel 1 includes a front panel 11 and a back panel 12. The front panel 11 and the back panel 12 are used to face away from the wall and face the wall respectively. There are two back panels 12 and they are distributed at intervals on the same plane. Reinforcing member 4 is provided one-to-one with the inner side of the bending part of the aluminum-plastic channel 1 and is spaced from both ends of the aluminum-plastic channel 1. When the aluminum-plastic plate 15 is bent for the second time, it abuts against the inner wall on both sides of the bending part of the aluminum-plastic channel 1. After the aluminum-plastic plate 15 completes the second bending, it is fixedly connected to the aluminum-plastic channel 1. Cover plate 2 is placed over the opening of aluminum-plastic trough 1 and fixedly connected to aluminum-plastic trough 1 to form a closed-loop structure. The sealing element 3 is fixedly connected to the reinforcing element 4, and the outer edge of the sealing element 3 is sealed to the inner wall of the aluminum-plastic groove 1 and the cover plate 2.

[0048] A further improvement is that the reinforcing member 4 includes a hollow reinforcing tube 41, which is provided with an injection port 411 and an outlet port 412. The reinforcing tube 41 and the inner wall of the bend of the aluminum-plastic groove 1 form an injection channel. The injection channel is connected to the inner cavity of the reinforcing tube 41 through the outlet port 412. The reinforcing member 4 also includes a cured adhesive strip 42 formed by curing the structural adhesive that fills the injection channel and the reinforcing tube 41.

[0049] In this curtain wall splicing structure, the aluminum-plastic channel 1 has multiple bends in the flat aluminum-plastic panel 15, and the bends undergo two internal bends. Before bending, the panel is first laser-grooved to form a groove 14, which is used as a bending plate for the two bends. During the first bend, the bending angle is relatively small, and a common sheet metal bending machine is usually used to bend the panel, so that the included angle formed by the two sides of the bend is greater than the preset angle. During the second bend, a reinforcing tube 41 with a sponge sleeve 43 is pressed into the inside of the bend to gradually reduce the included angle formed by the two sides of the bend until it matches the preset angle. Curing adhesive is injected into the injection port 411, filling the sponge sleeve 43, groove 14, and reinforcing tube 41 to form a cured adhesive strip 42. This increases the connection strength between the reinforcing tube 41 and the inner wall of the aluminum composite panel 15, and prevents the bent parts from deforming again under pressure. This ensures the product quality of the curtain wall and extends its service life. In addition, the internal bending method avoids the groove 14 from being exposed, ensuring the overall aesthetics of the curtain wall surface. At the same time, it makes the outer walls of the aluminum composite groove 1 smoothly connected, preventing workers' hands from being scratched during handling and installation, and ensuring safety.

[0050] The cover plate 2 is provided with a folded part 21 that extends into the aluminum-plastic groove 1. The two ends of the folded part 21 abut against the sealing element 3. The folded part 21 and the inner wall of the aluminum-plastic groove 1 form a filling channel. The filling channel is permeated by a pre-embedded bolt 23 perpendicular to its axis and is used to inject structural adhesive to cure and form a reinforcing strip 22 filled in the filling channel. The cover plate 2 is also pre-permeated with a fastening bolt 24. The head of the fastening bolt 24 faces the back panel 12, and the rod is threaded with a fastening nut 25. Both the fastening bolt 24 and the fastening nut 25 are spaced apart from the back panel 12.

[0051] The pre-embedded bolts 23 penetrate the folded part 21 and the back panel 12, facilitating the precise positioning of the cover plate 2 and the aluminum-plastic channel 1 and preventing relative sliding and positional deviation. The folded part 21 and the back panel 12 enclose and form a filling channel. After structural adhesive is injected into the filling channel, the structural adhesive cures and forms a reinforcing strip 22, which fixes the aluminum-plastic channel 1, the cover plate 2 and the pre-embedded bolts 23. The rod of the pre-embedded bolts 23 penetrates the cover plate 2, facilitating the connection between the curtain walls. Fastening bolts 24 and fastening nuts 25 are set on the cover plate 2 to facilitate the fixed connection between the cover plate 2 and the wall, thereby facilitating the connection between the curtain wall and the wall.

[0052] The sealing element 3 includes a sealing plate 31. The sealing plate 31 is provided with a stepped hole 311 for the insertion of the first bolt 32 and a sealing channel 312 extending to the outer periphery of the sealing element 3. The two ends of the sealing channel 312 are respectively connected to the end of the stepped hole 311 and the end of the groove 14. The two ends of the reinforcing tube 41 are provided with threaded blind holes 413 that are threadedly connected to the first bolt 32.

[0053] After adopting the above structure, by inserting the first bolt 32 into the inner side of the stepped hole 311, the first bolt 32 is screwed into the threaded blind hole 413, thereby fixing the sealing plate 31 to the end of the reinforcing tube 41. Then, structural adhesive is injected into the threaded blind hole 413, so that the structural adhesive fills the space between the threaded blind hole 413, the sealing channel 312 and the end of the groove 14, forming a cured adhesive block 33, which fills the gap between the sealing plate 31 and the inner wall of the aluminum-plastic groove 1. At the same time, the sealing plate 31, the first bolt 32 and the cured adhesive block 33 are integrally connected to form a sealing element 3, which is firmly installed in the end of the aluminum-plastic groove 1.

[0054] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A highly malleable aluminum composite panel curtain wall splicing process, comprising the following steps: S10, Bending aluminum composite panel (15): The flat aluminum composite panel (15) is bent in multiple places to form an aluminum composite groove (1), and a reinforcing member (4) is fixed inside the bending part of the aluminum composite panel (15). The aluminum composite groove (1) includes a front panel (11) and a back panel (12) for facing away from the wall and facing the wall respectively. There are two back panels (12) and they are spaced apart on the same plane. S20, End-to-end splicing: A cover plate (2) is fixedly installed at the opening of the aluminum-plastic trough (1) obtained in S10, so that the cover plate (2) and the aluminum-plastic trough (1) form a closed-loop structure. S30, mechanical seal; sealing elements (3) are fixed at both ends of the inner side of the closed-loop structure, the sealing elements (3) are fixedly connected to the reinforcing element (4) and the outer edge of the sealing elements (3) is sealed to the inner wall of the aluminum-plastic groove (1) and the cover plate (2); The characteristic feature is that step S10 includes the following steps: S101, Grooving: Use a laser to irradiate one side of the aluminum composite panel (15) and move the laser along a straight line to form a straight groove (14) on the aluminum composite panel (15), in which the plastic layer inside the groove (14) is exposed. S102, One-time bending: Using the groove (14) obtained in step S10 as the folding edge, the aluminum composite panel (15) is bent inward, and the included angle of the two side panels at the bending point is greater than the preset included angle; S103, Secondary bending: Press a reinforcing strip extending along the length of the groove (14) into the inner side of the bending angle formed after the first bending, so that the outer edge of the reinforcing strip abuts against the two side panels of the bending point, and continue to bend the aluminum-plastic plate (15) with the groove (14) as the folding edge to reduce the included angle of the two side panels of the bending point until it is consistent with the preset included angle. S104, Filling with structural adhesive: Inject structural adhesive between the reinforcing strip and the two side panels of the bend to form a cured adhesive strip (42), which is fixed between the groove (14) and the reinforcing strip.

2. The high-ductility cladding panel wall splicing process of claim 1, wherein: In step S103, positioning support members (5) are provided on the outer sides of both sides of the bending section. The positioning support members (5) have positioning support surfaces that fit against the side wall of the aluminum-plastic groove (1). The included angle of the positioning support surfaces is consistent with the preset included angle.

3. The high-ductility sheet cladding wall splicing process of claim 2, wherein: The positioning support (5) is rotatably configured with its rotation axis parallel to the extension direction of the groove (14). The positioning support (5) is connected to a drive assembly (6), which is used to drive the positioning support (5) to adjust the angle of the positioning support surface.

4. The high-ductility sheet cladding wall splicing process of claim 2, wherein: In step S103, the reinforcing strip is a reinforcing tube (41), which is provided with an injection port (411) and an outlet port (412). The outer circumferential edge of the reinforcing tube (41) fits against the inner walls on both sides of the bend and forms an injection channel. The injection channel communicates with the inner cavity of the reinforcing tube (41) through the outlet port (412). The cured adhesive strip (42) fills the space between the reinforcing tube (41) and the injection channel.

5. The high-ductility sheet cladding wall splicing process of claim 4, wherein: The reinforcing tube (41) is covered with a sponge sleeve (43), and the reinforcing member (4) in step S10 is formed by connecting the reinforcing tube (41), the sponge sleeve (43) and the curing strip (42).

6. The high-ductility sheet cladding wall splicing process of claim 4, wherein: The reinforcing tube (41) is sealed at both ends and has threaded blind holes (413). The threaded blind holes (413) are threadedly connected to the first bolt (32) and the second bolt (74). The sealing member (3) is threadedly connected to the inner wall of the threaded blind hole (413) through the first bolt (32). In step S103, the second bolt (74) connected to the threaded blind hole (413) is driven to move up and down by the lifting device (7). In conjunction with the positioning support member (5), the included angle of the two side panels at the bend is bent to be consistent with the preset included angle.

7. The high-ductility sheet cladding wall splicing process of claim 6, wherein: The cover plate (2) is provided with a folded part (21) that extends into the aluminum-plastic groove (1). The two ends of the folded part (21) abut against the sealing element (3). The folded part (21) and the inner wall of the aluminum-plastic groove (1) form a filling channel. The filling channel is permeated by a pre-embedded bolt (23) perpendicular to its axis and is used to inject structural adhesive to solidify and form a reinforcing strip (22) filled in the filling channel.

8. The high-impact plastic aluminum sheet panel wall splicing worker according to claim 7, characterized in that: The sealing element (3) includes a sealing plate (31), on which a stepped hole (311) for the first bolt (32) to be inserted and a sealing channel (312) extending to the circumferential outer edge of the sealing element (3) are provided. The two ends of the sealing channel (312) are respectively connected to the ends of the stepped hole (311) and the groove (14). After step S30, step S40 is also included: injection sealing: structural adhesive is injected into the ends of the stepped hole (311), the sealing channel (312) and the groove (14) to form a cured adhesive block (33). The cured adhesive block (33) fills the space between the groove (14), the sealing channel (312) and the stepped hole (311).

9. A high-ductility aluminum-plastic panel curtain wall splicing structure, characterized in that, include: Aluminum-plastic channel (1), the aluminum-plastic channel (1) is formed by bending a flat aluminum-plastic plate (15) in multiple places. Before bending, a groove is pre-cut on one side of the aluminum-plastic plate (15) by laser. Then, the groove (14) formed on the aluminum-plastic plate (15) is bent inward twice to form a folded corner. The aluminum-plastic channel (1) includes a front panel (11) and a back panel (12). The front panel (11) and the back panel (12) are used to face away from the wall and face the wall respectively. There are two back panels (12) and they are distributed at intervals on the same plane. The reinforcing member (4) is provided one-to-one with the inner side of the bending point of the aluminum-plastic groove (1) and is spaced from both ends of the aluminum-plastic groove (1). When the aluminum-plastic plate (15) is bent for the second time, it abuts against the inner wall on both sides of the bending point of the aluminum-plastic groove (1). After the aluminum-plastic plate (15) completes the second bending, it is fixedly connected to the aluminum-plastic groove (1). Cover plate (2) is placed over the opening of the aluminum-plastic trough (1) and fixedly connected to the aluminum-plastic trough (1) to form a closed-loop structure. The sealing element (3) is fixedly connected to the reinforcing element (4), and the outer circumferential edge of the sealing element (3) is sealed to the inner wall of the aluminum-plastic groove (1) and the cover plate (2).

10. The high-ductility cladding panel curtain wall splicing structure according to claim 9, characterized in that: The reinforcing member (4) includes a hollow reinforcing tube (41), which is provided with an injection port (411) and an outlet port (412). The reinforcing tube (41) and the inner wall of the bend of the aluminum-plastic groove (1) form an injection channel. The injection channel is connected to the inner cavity of the reinforcing tube (41) through the outlet port (412). The reinforcing member (4) also includes a cured adhesive strip (42) formed by curing structural adhesive that fills the injection channel and the reinforcing tube (41).

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