Automatic jointing and corner code binding integrated machine for rectangular air duct

Abstract

The application provides a rectangular air pipe automatic jointing and corner code binding integrated machine, which comprises a control system and a jointing module and a corner code synchronous installation module installed on a base; the jointing module supports the air pipe by a support frame, and the vertical moving cross beam assembly is used to implement the fitting of the female opening and the male opening of the jointing edge of the air pipe, and the protruding edge is bent, wherein the vertical moving cross beam assembly comprises a fixed support, a Y-direction sliding edge bending knife, a first inner support locking mechanism, a second inner support locking mechanism and a jointing assembly; the corner code synchronous installation module is integrated with a special corner code warehouse and a four-corner code synchronous installation mechanism which can be integrally fed. The application realizes the automatic guiding and accurate fitting of the female and male openings of the air pipe before jointing, completely gets rid of the dependence on the jointing experience of workers in the traditional process, significantly improves the jointing consistency and product quality, and can complete the binding of four pieces of corner code in one action, greatly reducing the amount of manual auxiliary operation and process switching time.

Description

Technical Field

[0001] This invention belongs to the field of duct forming equipment research and development technology, and in particular relates to an integrated machine for automatic seam closing and corner code binding of rectangular ducts. Background Technology

[0002] Air ducts are a core component of building ventilation, air conditioning, and smoke extraction systems, and their processing efficiency and quality directly affect project progress and product performance. In the forming process of rectangular air ducts, jointing and corner bracket installation are among the key steps determining the final quality.

[0003] Existing technology 1 (CN202110765633.1) discloses a handheld duct seam closing machine, which uses high-pressure gas to drive a hammer to impact and close the seam at the joint. However, it requires manual alignment of the male and female ends and hammering point by point, resulting in high operational intensity and poor seam consistency. Existing technology 2 (CN201520459233.8) discloses a vertical seam closing and corner code integrated machine, which integrates seam closing and corner code installation into one unit. Although it has more comprehensive functions and helps to improve construction efficiency, the seam alignment operation before seam closing still requires manual assistance for seam alignment and positioning. Moreover, its corner code installation is carried out in a single station sequentially, and only one piece can be installed at a time, which cannot be installed simultaneously. Since a standard duct section requires the installation of eight corner codes, the operation is cumbersome and the overall production efficiency is low.

[0004] In summary, existing technologies generally suffer from the following problems: seam alignment requires manual adjustment, lacks automatic alignment functions, relies heavily on worker experience, cannot effectively guarantee accuracy, and has low production efficiency; point-by-point hammering results in poor edge consistency, easily causing local deformation or springback; and it cannot achieve synchronous installation of four corner brackets, leading to low production efficiency. The root cause of these problems lies in the lack of a systematic automated solution for automatic seam alignment of male and female duct openings, overall roller pressing and folding of edges, and synchronous installation of multiple corner brackets. This invention addresses these bottlenecks by providing a novel integrated machine for automatic seam alignment, seam closing, and corner bracket binding of rectangular ducts, effectively overcoming the shortcomings of existing technologies. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an integrated machine for automatic duct seam closing and corner code binding of rectangular air ducts. It achieves automatic alignment and precise fitting of the male and female openings before duct seam closing, completely eliminating the reliance on manual seam experience in traditional processes. At the same time, it enables the binding of four corner codes in one operation, significantly reducing the amount of manual assistance and process switching time.

[0006] The present invention achieves the above-mentioned technical objectives through the following technical means.

[0007] An automatic duct seam closing and corner code binding integrated machine includes a seam closing module and a corner code synchronous installation module mounted on a base. The seam closing module includes two support frames, an end face guide assembly, and a lifting column assembly. A vertical moving beam assembly is mounted on the lifting column assembly, and a horizontal X-axis pressing assembly is mounted on the vertical moving beam assembly. The corner code synchronous installation module includes four corner code installation units. Each corner code installation unit includes a fixed bracket and an extrusion assembly, an inner support assembly, a pressure plate assembly, and a hopper assembly mounted on the fixed bracket.

[0008] Furthermore, the two support frames have identical structures, each equipped with a slide rail type slide cylinder and an end positioning plate. A Y-axis clamping push plate is mounted on the sliding block of the slide rail type slide cylinder. The end face guide assembly includes a fixed guide plate fixed to the outer side of one of the support frames and a centering assembly installed on the outer side of the other support frame. The centering assembly includes a cylinder A, the telescopic end of which is connected to the centering push plate. The Y-axis clamping push plate cooperates with the end positioning plate, and the centering push plate cooperates with the fixed guide plate to jointly constrain the position of the duct.

[0009] Furthermore, the vertically moving crossbeam assembly includes a fixed bracket, a Y-axis sliding folding blade, a first inner support locking mechanism, a second inner support locking mechanism, and a seam assembly;

[0010] The fixed bracket is fixed to the lifting column assembly. The Y-axis sliding folding blade is connected to the fixed bracket via a linear guide rail and driven by a hydraulic cylinder to achieve duct folding. Both ends of the fixed bracket are equipped with seam fitting components, and a first inner support locking mechanism and a second inner support locking mechanism are also installed at each end of the fixed bracket. The first inner support locking mechanism uses a pneumatic motor, a lead screw, and a slide rail to drive the Y-axis slider on it to move along the Y-axis. The Y-axis slider of the first inner support locking mechanism is connected to the inner support mechanism through the inner support mechanism mounting plate. Similarly, the second inner support locking mechanism uses a pneumatic motor, a lead screw, and a slide rail to drive the Y-axis slider on it to move along the Y-axis. The Y-axis slider of the second inner support locking mechanism is connected to a receiving seat through the slider mounting plate. The receiving seat has an insertion hole for the inner support rod of the inner support mechanism to pass through.

[0011] Furthermore, the seam assembly includes a T-shaped upright plate connected to a fixed bracket. A seam lifting plate movable along the Y direction is mounted on the T-shaped upright plate via a linear guide rail assembly. A Z-axis sliding plate movable along the Z direction is mounted on the seam lifting plate via a linear guide rail assembly. The end of the Z-axis sliding plate is connected to a pivot pin movable along the X direction via a linear guide rail assembly. The pivot pin is used to position the male opening of the duct.

[0012] Furthermore, the inner support mechanism includes an inner support fixing frame, which is connected to a first inner support locking mechanism and a support rod slide plate; a side support plate and a first X-axis slider are installed on the support rod slide plate, the first X-axis slider cooperates with a linear guide rail at the bottom of the inner support rod, a second X-axis slider is installed on the side support plate, the second X-axis slider cooperates with a linear guide rail on the side of the inner support rod; a rack is also installed at the bottom of the inner support rod, the rack cooperates with a gear at the end of a pneumatic motor on the support rod slide plate, and the pneumatic motor drives the entire inner support rod to slide along the X direction; an inner through-hole head that cooperates with the through-hole is also installed at the end of the inner support rod.

[0013] Furthermore, the horizontal X-axis pressing component includes a shaping base, the back of which is connected to a fixed bracket via a connecting plate, the front of which is connected to a Z-axis pressing roller mounting plate via a linear guide module, the Z-axis pressing roller mounting plate being connected to a pressing lifting plate via a linear guide module, and a roller pressing shaping wheel being provided at the bottom of the pressing lifting plate.

[0014] Furthermore, the extrusion assembly includes a seam-closing hinge welded to the bottom of the top platform plate of the fixed bracket. The seam-closing hinge is also hinged to the upper part of the extrusion actuator head. The lower end of the extrusion actuator head is hinged to the piston rod end of the cylinder. The cylinder is hinged to the cylinder movable frame via an ear plate, and the cylinder movable frame is welded to the fixed bracket. The inner support assembly includes an inner support block. The bottom of the inner support block is hinged to the fixed bracket and the piston rod end of the cylinder via an ear plate. The bottom of the cylinder is connected to a rotating cylinder bracket, which is hinged to the fixed bracket via an ear plate.

[0015] Furthermore, the pressure plate assembly includes an M-shaped pressure plate bracket top plate, a downward pressure cylinder mounted on the top surface of the top plate, and a vertical plate mounted on the bottom surface. A sleeve is welded to the lower surface of the M-shaped shoulder. The vertical plate is fixed to the top platform plate of the fixed bracket, and a guide groove block is mounted on the side of the vertical plate, which cooperates with the shoulder of the downward pressure arm. The end of the downward pressure arm is hinged to the pressure plate, and a column that cooperates with the sleeve is welded to the pressure plate. The piston rod end of the downward pressure cylinder is connected to the positioning hole of the downward pressure arm. The downward movement of the piston rod of the downward pressure cylinder drives the downward movement of the downward pressure arm, which in turn drives the pressure plate to move downward, thereby realizing the corner code binding.

[0016] Furthermore, the hopper assembly includes a middle stop rod and a corner code guide rod welded to the feeding platform. The feeding platform is fixed to the upper surface of the top platform plate, and a rodless cylinder is also installed at the bottom of the feeding platform. The end of the cutting plate is provided with an opening that matches the shape of the corner code. The bottom of the cutting plate is connected to the slider of the rodless cylinder. The rodless cylinder pushes the cutting plate to slide along the feeding platform, pushing the corner code parts into place for installation. The middle stop rod is connected to the flange mounting plate at the bottom of the pressing cylinder through an L-shaped connecting plate. The middle stop rod is located in the concave part of the corner code and there is a gap between the bottom of the middle stop rod and the feeding platform to ensure that the cutting plate can only push a single corner code to slide at a time.

[0017] Furthermore, of the four corner bracket installation units, one corner bracket installation unit is fixed on the base, one corner bracket installation unit is installed on a single-axis moving platform to achieve X-axis movement, and two corner bracket installation units are installed on a dual-axis moving platform to achieve bidirectional movement in the X and Y directions to adapt to air ducts of different sizes.

[0018] The present invention has the following beneficial effects:

[0019] This invention, through the design of a specialized seam fitting component and a shaping wheel working in synergy, achieves automatic alignment and precise fitting of the male and female openings before duct seam sealing, completely eliminating the reliance on manual seam fitting experience in traditional processes and significantly improving seam consistency and product quality. Simultaneously, the overall roller pressing and repeated springback elimination mechanism effectively avoids localized deformation and rebound problems, ensuring the stability and reliability of the folding process. Furthermore, this invention integrates a dedicated corner code hopper capable of overall material feeding and a four-corner code synchronous installation mechanism, allowing for the binding of four corner codes in a single operation. This significantly reduces manual assistance and process changeover time, resulting in a qualitative improvement in the efficiency of the entire seam sealing and corner code installation process, truly achieving fully automated and efficient operation from seam fitting and sealing to corner code binding. Attached Figure Description

[0020] Figure 1 A schematic diagram of the overall structure of an integrated machine for automatic seam closing and corner code binding of rectangular air ducts;

[0021] Figure 2 This is a schematic diagram of the structure of the first support frame, the second support frame, and the end face guide assembly;

[0022] Figure 3 This is a schematic diagram of the lifting column assembly structure;

[0023] Figure 4 This is a schematic diagram of the vertically moving crossbeam assembly structure.

[0024] Figure 5 This is a schematic diagram showing the connection principle between a Y-axis sliding folding knife and a fixed bracket.

[0025] Figure 6 A schematic diagram showing the arrangement of the first internal support locking mechanism, the seam assembly, and the connection with the fixed bracket;

[0026] Figure 7 Exploded view of the first internal support locking mechanism;

[0027] Figure 8 This is a schematic diagram showing the connection between the second inner support locking mechanism and the receiving seat;

[0028] Figure 9 This is a schematic diagram of the overall structure of the seam assembly;

[0029] Figure 10This is an exploded view of the seam assembly structure;

[0030] Figure 11 This is a schematic diagram of the overall internal support mechanism;

[0031] Figure 12 Exploded view of the internal support mechanism structure;

[0032] Figure 13 This is a schematic diagram of the overall structure of the horizontal X-axis pressure edge assembly;

[0033] Figure 14 This is an exploded view of the shaped base and its related components.

[0034] Figure 15 Exploded view of the Z-axis pressure roller mounting plate and its related components;

[0035] Figure 16 This is a schematic diagram illustrating the duct jointing process and the completion of the jointing.

[0036] Figure 17 This is a front view of the corner bracket mounting unit;

[0037] Figure 18 This is a side view of the corner bracket mounting unit;

[0038] Figure 19 This is a schematic diagram of the extrusion assembly structure;

[0039] Figure 20 This is a schematic diagram of the internal support component structure;

[0040] Figure 21 This is a schematic diagram of the pressure plate assembly structure;

[0041] Figure 22 This is a schematic diagram of the silo component structure;

[0042] In the diagram: 1-Base; 2-First support frame; 3-Second support frame; 4-End face guide assembly; 5-Lifting column assembly; 6-Corner code installation unit; 7-Single-axis moving platform; 8-Dual-axis moving platform; 9-Vertical moving beam assembly; 10-Horizontal X-direction pressing edge assembly; 12-Seam edge female opening; 13-Seam edge male opening; 16-Corner code;

[0043] 21-Workbench frame; 22-Slide rail type slide cylinder; 23-Y-direction clamping push plate; 24-End positioning plate;

[0044] 41-Fixed guide plate; 42-Centering assembly; 421-Cylinder bracket; 422-Cylinder A; 423-Centering push plate;

[0045] 51-Gantry column; 52-Z-direction screw nut slide assembly; 53-Z-direction lifting seat; 54-Motor bracket; 55-Servo motor and reducer;

[0046] 61-Fixed bracket; 611-Top platform plate; 612-First upright plate; 613-Bottom platform plate; 614-Second upright plate; 62-Extrusion assembly; 621-Extrusion actuator head; 622-Seam closing hinge; 623-Cylinder movable frame; 6231-Cylinder B; 63-Inner support assembly; 631-Inner support block; 6311-First ear plate; 632-Rotating cylinder bracket; 6321-Cylinder C; 64-Pressure plate assembly; 6 41-Pressure plate; 6411-Column; 642-Lower pressure arm; 6421-Shoulder; 643-Lower pressure cylinder; 6431-Flange mounting plate; 6432-Top plate of pressure plate bracket; 6433-Guide slot block; 6434-Upright plate; 6435-Sleeve; 65-Hopper assembly; 651-Angle code guide rod; 652-Middle stop rod; 653-Feeding table; 654-Cutting plate; 655-Rodless cylinder; 6551-Slider G;

[0047] 91-Fixed bracket; 910-Mounting plate; 911-First folding linear guide assembly; 912-Second folding linear guide assembly; 913-Third folding linear guide assembly; 914-Fourth folding linear guide assembly; 915-Hydraulic cylinder; 916-Floating joint; 917-Folding knife fixing plate; 92-Y-direction sliding folding knife; 921-End panel; 922-Positioning step; 93-First inner support locking mechanism; 94-Second inner support locking mechanism; 941-Connection 9411-Slider mounting plate; 9412-Through hole; 9413-First reinforcing rib plate; 9414-Second reinforcing rib plate; 9415-Inner support rod through plate; 95-Locking mechanism base plate; 951-Inner support mechanism mounting plate; 952-First shaft support; 953-Pneumatic motor support plate; 954-First vertical plate flange; 955-Second vertical plate flange; 956-Screw A; 957-Second shaft support; 958-Nut seat A; 959-Slide rail A; 96- Y-axis slider; 97-Pneumatic motor A; 98-Seam assembly; 981-T-shaped upright plate; 9811-Guide rail; 9812-Y-axis cylinder mounting plate; 982-Seam lifting plate; 9821-Z-axis cylinder mounting plate; 9822-Y-axis push plate; 9823-Z-axis sliding plate; 9824-X-axis raising pad; 9825-Y-axis cylinder; 983-Z-axis sliding plate; 9831- Z-axis cylinder; 9832-Z-direction push plate; 9833-optical axis support; 9834-optical axis; 9835-optical axis nut; 9836-Y-axis mounting plate; 9837-reinforcing rib; 984-shifting column; 9841-linear guide rail A; 9842-Y-direction cylinder mounting plate; 9843-Y-direction cylinder; 9844-shifting rod; 99-inner support mechanism; 991-inner support fixing frame; 9911-side connecting plate; 9912-mounting fixing plate; 992-support rod slide plate; 9921-first X-direction slider; 993-first X-direction linear guide rail; 994-side support plate; 9941-second X-direction slider; 995-second X-direction linear guide rail; 996-inner support rod; 9961-inner through-column head; 9962-upper cover plate; 9963-pneumatic motor B;

[0048] 101-Shaping base; 1011-Shaping base connecting plate; 1012-Connecting plate; 1013-Nut seat B; 1014-First support; 1015-Second support; 1016-Motor bracket; 1017-Reducer; 1018-Drive motor; 1019-Lead screw B; 102-X-direction pressure roller assembly; 103-Z-direction pressure roller mounting plate; 1031-Slider F; 1032-Nut seat C; 1033-Lead screw C; 1034-Slide rail C; 104-Pressure lifting plate; 1041-Roller shaping roller; 105-Hydraulic cylinder; 106-Linear guide rail module A; 1061-Linear guide rail B; 1062-Slider E; Detailed Implementation

[0049] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but the scope of protection of the present invention is not limited thereto. In the description of the present invention, it should be understood that the terms "upper," "lower," "left," "right," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention; the terms "installation," "connection," "fixing," etc., should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection within two components; for those skilled in the art, the specific meaning of the above terms in the present invention can be understood according to the specific circumstances.

[0050] like Figure 1 As shown, the automatic duct seam closing and corner code binding integrated machine of the present invention includes a base 1, on which a seam closing module, a corner code synchronous installation module, and a control system are installed. The seam closing module includes a first support frame 2, a second support frame 3, an end face guide assembly 4, a lifting column assembly 5, a vertical moving beam assembly 9, and a horizontal X-axis pressing edge assembly 10. The corner code synchronous installation module includes a single-axis moving platform 7, a dual-axis moving platform 8, and a corner code installation unit 6. In this embodiment, the length direction of the base 1 is taken as the X-axis, the width direction of the base 1 is taken as the Y-axis, and the direction perpendicular to the base 1 is taken as the Z-axis.

[0051] like Figure 1 , 2 As shown, the first support frame 2 and the second support frame 3 are symmetrically arranged on the base 1, with a distance of 900mm between them to match the length of the air duct; the height of the first support frame 2 and the second support frame 3 is 400mm, leaving space for the later use of a robotic arm to clamp and load materials.

[0052] like Figure 1 , 2 As shown, the first support frame 2 and the second support frame 3 have the same structure. In this embodiment, the first support frame 2 is preferred as an example for structural description. The first support frame 2 includes a workbench frame 21, a slide rail type slide cylinder 22, a Y-axis clamping push plate 23, and an end positioning plate 24. The slide rail type slide cylinder 22 is installed inside the workbench frame 21. A sliding block is provided on the slide rail type slide cylinder 22, and the Y-axis clamping push plate 23 is installed on the sliding block to fix the bottom of the air duct. At the same time, the end positioning plate 24 is also fixedly installed on the top platform of the workbench frame 21. The end positioning plate 24 cooperates with the Y-axis clamping push plate 23 to clamp and fix the air duct. In this embodiment, the Y-axis clamping push plate 23 has a stroke of 800mm, which can adapt to air ducts of different diameters.

[0053] like Figure 1 , 2 As shown, the end-face guide assembly 4 includes a fixed guide plate 41 and a centering assembly 42. The fixed guide plate 41 is fixed to the outer side of the first support frame 2 on the left side to limit the position of the duct on the left side. The centering assembly 42 is installed on the outer side of the second support frame 3 on the right side and includes a cylinder bracket 421, a cylinder A 422, and a centering push plate 423. The cylinder bracket 421 is fixed to the base 1, and the cylinder A 422 is installed on the top of the cylinder bracket 421. The telescopic end of the cylinder A 422 is connected to the centering push plate 423. The cylinder A 422 drives the centering push plate 423 to move, which can constrain the position of the duct on the right side. The fixed guide plate 41 and the centering assembly 42 can further fix the X-direction of the duct.

[0054] like Figure 1 , 3 As shown, two lifting column assemblies 5 are mounted on the base 1 and located near the front ends of the first support frame 2 and the second support frame 3, respectively. Each lifting column assembly 5 includes a gantry column 51, a Z-axis screw and nut slide assembly 52, a Z-axis lifting seat 53, a motor bracket 54, a servo motor, and a reducer 55. The Z-axis screw and nut slide assembly 52 is mounted on the gantry column 51 to accommodate changes in duct diameter. A motor bracket 54 is also mounted on the top of the gantry column 51, and a servo motor and reducer 55 are mounted on the motor bracket 54 to provide power to the Z-axis screw and nut slide assembly 52. ​​A Z-axis lifting seat 53 is also mounted on the slide of the Z-axis screw and nut slide assembly 52, and the servo motor and reducer 55 can drive the Z-axis lifting seat 53 to move vertically (i.e., along the Z-axis). The vertical moving beam assembly 9 is mounted entirely on the Z-axis lifting seat 53 of the two lifting column assemblies 5 and moves vertically (i.e., along the Z-axis) following the Z-axis lifting seat 53.

[0055] like Figure 1 , 4As shown in Figures 5 and 6, the vertically moving crossbeam assembly 9 includes a fixed bracket 91, a Y-axis sliding folding blade 92, a first inner support locking mechanism 93, a second inner support locking mechanism 94, and a seam assembly 98. The fixed bracket 91 is connected to the Z-axis lifting seat 53 via a mounting plate 910. The Y-axis sliding folding knife 92 is connected to the fixed bracket 91 via four sets of linear guide rails, and is driven by a hydraulic cylinder (3-5 tons) on the fixed bracket 91 to achieve folding. Specifically, the fixed bracket 91 has a first folding linear guide rail assembly 911, a second folding linear guide rail assembly 912, a third folding linear guide rail assembly 913, and a fourth folding linear guide rail assembly 914 arranged along the X-axis, in a symmetrical layout. The fixed bracket 91 is also equipped with a hydraulic cylinder 915, and the end of the hydraulic rod of the hydraulic cylinder 915 is equipped with a floating joint 916, the end of which is connected to the folding knife fixing plate 917. The slider A and the folding knife fixing plate 917 on the first folding linear guide rail assembly 911, the second folding linear guide rail assembly 912, the third folding linear guide rail assembly 913, and the fourth folding linear guide rail assembly 914 are all connected to the base plate of the Y-axis sliding folding knife 92.

[0056] like Figure 1 , 4 As shown in Figure 6, both ends of the fixed bracket 91 are equipped with seam fittings 98 (for clarity, Figure 1 The right-end seam assembly 98 is not shown in the figure. The fixed bracket 91 is also equipped with a first inner support locking mechanism 93 and a second inner support locking mechanism 94 at both ends. The first inner support locking mechanism 93 and the second inner support locking mechanism 94 both include a locking mechanism base plate 95, a Y-axis slider 96, and a pneumatic motor A97. An inner support mechanism 99 is additionally installed on the first inner support locking mechanism 93.

[0057] Specifically, such as Figure 6 As shown, the fixed bracket 91 has end panels 921 at both ends. The left end panel 921 is bolted to the locking mechanism base plate 95 of the first inner support locking mechanism 93, and the right end panel 921 is bolted to the locking mechanism base plate 95 of the second inner support locking mechanism 94. A positioning step 922 is also provided at the end of the top plate of the fixed bracket 91, and the two positioning steps 922 are bolted to the T-shaped upright plate 981 in the seam assembly 98. The first inner support locking mechanism 93 and the second inner support locking mechanism 94 can constrain the inner support mechanism 99 to tighten in the Y direction, which is used to fix the vertical surface where the female opening of the seam is located.

[0058] like Figure 7As shown, two slide rails A959 are arranged along the Y direction on the base plate 95 of the locking mechanism. A Y-direction slider 96 is installed on the slide rails A959. A lead screw A956 is arranged between the slide rails A959. A first shaft support 952 and a second shaft support 957 are respectively installed at both ends of the lead screw A956. A nut seat A958 is sleeved in the middle of the lead screw A956. The first shaft support 952 is bolted to the inner side of the base plate 95 of the locking mechanism. A pneumatic motor support plate 953 is also installed on the outer side of the base plate 95 of the locking mechanism. A first vertical plate flange 954 and a second vertical plate flange 955 are respectively installed on the inner side of the pneumatic motor support plate 953. The first vertical plate flange 954 is connected to the flange mounting surface of the pneumatic motor A97, and the second vertical plate flange 955 is connected to the second shaft support 957.

[0059] like Figure 4 , 7 As shown, for the first inner support locking mechanism 93, its Y-axis slider 96 and nut seat A958 are both connected to the outer side of the inner support mechanism mounting plate 951, and the inner support mechanism 99 is installed on the inner side of the inner support mechanism mounting plate 951. Figure 4 , 8 As shown, for the second inner support locking mechanism 94, its Y-axis slider 96 and nut seat A958 are both connected to the inner side of the slider mounting plate 9411, and the outer side of the slider mounting plate 9411 is connected to the receiving seat 941. The receiving seat 941 also includes an inner support rod insertion plate 9415, which is connected to the receiving seat 941 through a first reinforcing rib plate 9413 and a second reinforcing rib plate 9414. The inner support rod insertion plate 9415 has an insertion hole 9412 in the middle.

[0060] like Figure 9 , 10 As shown, the seam fitting assembly 98 includes a T-shaped upright plate 981. The T-shaped upright plate 981 and the seam fitting lifting plate 982 slide along the Y-axis via a linear guide assembly; the seam fitting lifting plate 982 and the Z-axis sliding plate 983 slide along the Z-axis via a linear guide assembly; the end of the Z-axis sliding plate 983 moves along the X-axis to the push post 984 via a linear guide assembly. This mechanism is mainly used for positioning the male part, ensuring that the male and female parts fit together after the horizontal X-axis pressing assembly 10 rolls.

[0061] Specifically, such as Figure 9 , 10As shown, two guide rails 9811 are arranged along the Y direction on the outer side of the T-shaped upright plate 981. Each guide rail 9811 is equipped with a slider B and is screwed to the inner side of the seam lifting plate 982. A Y-direction cylinder mounting plate 9812 is screwed and installed on the outer side of the T-shaped upright plate 981. A Y-direction cylinder 9825 is provided on the Y-direction cylinder mounting plate 9812. The telescopic end of the Y-direction cylinder 9825 is screwed to the Y-direction push plate 9822. The Y-direction push plate 9822 is installed on the outer side of the seam lifting plate 982. An X-direction heightening pad 9824 and a Z-direction sliding plate 9823 are also arranged on the outer side of the seam lifting plate 982.

[0062] like Figure 10 As shown, a Z-axis cylinder mounting plate 9821 is installed at the inner corner of the seam lifting plate 982. The Z-axis cylinder mounting plate 9821 is connected to the flange plate of the Z-axis cylinder 9831. A Z-axis push plate 9832 is installed at the telescopic end of the Z-axis cylinder 9831.

[0063] like Figure 10 As shown, a slide rail B arranged along the Z direction is provided on the inner side of the Z-axis slide plate 983. The slider C on the slide rail B is connected to the stepped surface screw of the X-direction raising pad 9824. Two optical axis supports 9833 are installed on the top and bottom of the outer side of the Z-axis slide plate 983. An optical axis 9834 is provided between the two optical axis supports 9833. An optical axis nut 9835 is fitted on the optical axis 9834. One end of the optical axis nut 9835 is provided with a flange plate and is connected to the Z-direction sliding plate 9823. The bottom of the outer side of the Z-axis slide plate 983 is also connected to the Z-direction push plate 9832 by screws.

[0064] like Figure 10 As shown, a Y-axis mounting plate 9836 is installed at the bottom cross-section of the Z-axis slide plate 983. A reinforcing rib 9837 is also provided between the Y-axis mounting plate 9836 and the Z-axis slide plate 983. The reinforcing rib 9837 has mounting holes and is connected to the Y-axis cylinder mounting plate 9842. The Y-axis cylinder mounting plate 9842 is connected to the flange plate of the Y-axis cylinder 9843. The bottom of the Y-axis mounting plate 9836 is also connected to the slider D on the linear guide rail A9841. The linear guide rail A9841 is screwed to the shift post 984. A shift lever 9844 is installed at the end of the shift post 984.

[0065] like Figure 4 , 11As shown in Figure 12, the inner support mechanism 99 includes an inner support fixing frame 991, which includes a mounting fixing plate 9912 and a side connecting plate 9911. The mounting fixing plate 9912 is bolted to the inner support mechanism mounting plate 951 in the first inner support locking mechanism 93. The bottom outer side of the side connecting plate 9911 is bolted to the strut slide plate 992. The top outer side of the side connecting plate 9911 is bolted to the upper cover plate 9962, and the upper cover plate 9962 is connected to the side support plate 994. A first X-axis slider 9921 is fixedly installed on the strut slide plate 992, and the first X-axis slider 9921 cooperates with the first X-axis linear guide rail 993. A side support plate 994 is installed at the end of the strut slide plate 992, and a second X-axis slider 9941 is fixedly installed on the side of the side support plate 994, and the second X-axis slider 9941 cooperates with the second X-axis linear guide rail 995. The first X-axis linear guide 993 is screwed to the bottom of the inner support rod 996, and the second X-axis linear guide 995 is screwed to the side of the inner support rod 996. A rack is also installed at the bottom of the inner support rod 996. A pneumatic motor B9963 is installed at the end of the support rod slide plate 992. The gear at the end of the pneumatic motor B9963 engages with the rack at the bottom of the inner support rod 996. The rotation of the gear at the end of the pneumatic motor B9963 drives the inner support rod 996 to slide in the X direction. An inner through-pin 9961 is also installed at the end of the inner support rod 996. As the inner support rod 996 slides in the X direction, the inner through-pin 9961 can pass through the through-hole 9412 in the middle of the inner support rod through-plate 9415 on the second inner support locking mechanism structure 94. The inner support rod 996 mainly serves as the inner support of the duct, facilitating the folding mechanism to perform the folding action.

[0066] like Figure 13 , 14 As shown in Figure 15, the horizontal X-direction pressing assembly 10 includes a shaping base 101. Both ends of the back of the shaping base 101 are equipped with C-shaped mounting parts. The C-shaped mounting parts are formed by bending a C-shaped hollow tube. One end of the C-shaped mounting part is equipped with a shaping base connecting plate 1011 (for connecting with the shaping base 101), and the other end is equipped with a connecting plate 1012 (for connecting with the fixed bracket 91). A linear guide module A106 is mounted on the front of the shaping base 101. The linear guide module A106 includes two linear guides B1061 and four sliders E1062 on them. A lead screw B1019 is arranged between the two linear guides B1061. A first support 1014 and a second support 1015 are respectively arranged at both ends of the lead screw B1019. A nut seat B1013 is fitted on the lead screw B1019. The nut seat B1013 and the four sliders E1062 are all screwed to the back of the Z-direction pressure roller mounting plate 103 in the X-direction pressure roller component 102. A motor bracket 1016 is also installed at the right end of the shaping base 101. A reducer 1017 and a drive motor 1018 are mounted on the motor bracket 1016 for driving the lead screw B1019 to rotate.

[0067] like Figure 13 , 14 As shown in Figure 15, the X-axis pressure roller component 102 includes a Z-axis pressure roller mounting plate 103. A linear guide rail module B is arranged along the Z-direction on the Z-axis pressure roller mounting plate 103. The linear guide rail module B includes two slide rails C1034, and two sliders F1031 are arranged on each slide rail C1034. A lead screw C1033 is arranged between the two slide rails C1035. A nut seat C1032 is fitted on the lead screw C1033. The nut seat C1032 and the sliders F1031 are all connected to the back of the pressing lifting plate 104 by screws. The top of the lead screw C1033 is connected to the piston rod of the hydraulic cylinder 105, which is mounted on the Z-axis pressure roller mounting plate 103. Two roller forming wheels 1041 are arranged at the bottom of the pressing lifting plate 104.

[0068] like Figure 1 As shown, four corner bracket mounting units 6 with identical structures are used. One corner bracket mounting unit 6 is fixedly mounted on the base 1, one corner bracket mounting unit 6 is mounted on the single-axis moving platform 7 for X-axis movement, and two corner bracket mounting units are mounted on the dual-axis moving platform 8 for bidirectional X-axis and Y-axis movement. Figure 17 , 18 As shown, each corner bracket installation unit 6 includes a fixed bracket 61, an extrusion assembly 62, an inner support assembly 63, a pressure plate assembly 64, and a hopper assembly 65.

[0069] like Figure 17 , 18 As shown, the fixed bracket 61 includes a bottom platform plate 613, on which two parallel first upright plates 612 are vertically welded. A second upright plate 614 is also welded to the bottom platform plate 613, perpendicular to the first upright plates 612. A top platform plate 611 is welded to the top surfaces of the first upright plates 612 and the second upright plates 614. Figure 22 As shown, the top platform plate 611 has a notch on its side for the inner support block 631 to operate, and the top of the top platform plate 611 has a through hole for the extrusion execution head 621 to operate.

[0070] like Figure 17 , 18As shown in Figure 19, two extrusion assemblies 62 are symmetrically mounted on the fixed bracket 61. Each extrusion assembly 62 includes an extrusion actuator 621, a seam-closing hinge 622, and a cylinder movable frame 623. The seam-closing hinge 622 is welded to the bottom of the top platform plate 611 and has a pin hole at its end, hinged to the upper part of the extrusion actuator 621. The lower end of the extrusion actuator 621 is hinged to the piston rod end of the cylinder B6231. An ear plate A is mounted on the flange mounting plate A at the bottom of the cylinder B6231, and the ear plate A is hinged to the cylinder movable frame 623, which is welded to the second vertical plate 614. Based on this hinged structure, and driven by the cylinder B6231, the upper end of the extrusion actuator 621 can be moved to achieve the seam-closing operation of the duct flange edge.

[0071] like Figure 17 , 18 As shown in Figure 20, the inner support assembly 63 includes an inner support block 631 and a rotating cylinder bracket 632. A first ear plate 6311 is mounted on the bottom of the inner support block 631, which is hinged to the first upright plate 612 and also hinged to the piston rod end of the cylinder C6321. A flange mounting plate B at the bottom of the cylinder C6321 is screwed to the rotating cylinder bracket 632, which has an ear plate B at its bottom, hinged to the first upright plate 612. Based on this hinged structure, and driven by the cylinder C6321, the inner support block 631 can be driven to abut against the air duct, facilitating the subsequent installation of the corner bracket 16.

[0072] like Figure 17 , 18 As shown in Figure 21, the pressure plate assembly 64 includes a pressure plate 641, a lower pressure arm 642, and a lower pressure cylinder 643. The lower pressure cylinder 643 is installed on the top surface of the upper plate 6432 of the pressure plate bracket. A through hole is provided in the middle of the upper plate 6432 of the pressure plate bracket to facilitate the piston of the lower pressure cylinder 643 to pass through. The upper plate 6432 of the pressure plate bracket is M-shaped, and a sleeve 6435 is welded to the shoulder of the M-shape. Two upright plates 6434 are installed on the bottom surface of the upper plate 6432 of the pressure plate bracket. The upright plates 6434 are fixed to the upper surface of the top platform plate 611. Two guide slot blocks 6433 are installed on the side of the upright plates 6434. Two guide slot blocks 6433 engage with the shoulder 6421 on the lower pressure arm 642, allowing them to slide up and down. The end of the lower pressure arm 642 is hinged to the ear plate on the pressure plate 641. Two columns 6411 are welded to the pressure plate 641, and these columns can slide up and down through the sleeve 6435. The piston rod of the lower pressure cylinder 643 is connected to a positioning hole on the lower pressure arm 642. The downward movement of the piston rod of the lower pressure cylinder 643 moves the lower pressure arm 642 downward, further moving the pressure plate 641 downward, pressing the corner bracket 16 that is positioned at the corner of the duct, thus securing the corner bracket 16.

[0073] like Figure 17 ,18 As shown in Figure 22, the hopper assembly 65 includes corner bracket guide rods 651, a middle stop rod 652, a feeding platform 653, and a cutting plate 654. There are four corner bracket guide rods 651, all vertically welded to the feeding platform 653 and respectively attached to the outer edge of the corner bracket 16 to hold it in place. The feeding platform 653 is fixed to the upper surface of the top platform plate 611, and its bottom is also connected to the shaft seat screw of the rodless cylinder 655. The cutting plate 654 has an opening at its end that matches the shape of the corner bracket 16, and its bottom is connected to the slider G6551 of the rodless cylinder 655 with screws. The rodless cylinder 655 can push the cutting plate 654 to slide along the feeding platform 653, pushing the corner bracket 16 parts to the corner of the duct for installation. The top of the middle stop bar 652 is connected to an L-shaped connecting plate, and the other end of the L-shaped connecting plate is connected to the flange mounting plate 6431. There is one middle stop bar 652, which is located in the recess of the corner bracket 16, and there is a gap between the bottom and the feeding table 653 to ensure that the cutting plate 654 can only push a single corner bracket 16 to slide at a time, while the other corner brackets 16 are blocked by the middle stop bar 652.

[0074] The method for automatic seam closing and corner code binding of rectangular air ducts using the integrated machine for automatic seam closing and corner code binding of rectangular air ducts described in this invention is as follows:

[0075] Step 1: After the duct to be joined is manually or by a robotic arm horizontally fed to the top of the first support frame 2 and the second support frame 3, the workbench frame 21 serves as the bottom support surface. Under the comprehensive control of the control system, the Y-axis clamping push plate 23 is driven by the slide cylinder 22 to tighten the stroke, ensuring that the bottom of the duct falls smoothly between the Y-axis clamping push plate 23 and the end positioning plate 24, thus achieving Y-axis constraint.

[0076] Step 2: Next, the X direction of the air duct is constrained by the end face guide component 4: the left side of the bottom of the air duct is limited by the left fixed guide plate 41, and the right side of the bottom of the air duct is constrained by the centering component 42. The centering push plate 423 is pushed to the left by the cylinder A422 to complete the limiting.

[0077] Step 3: Subsequently, using the lifting column assembly 5 and the vertical moving beam assembly 9, the female opening 12 and the male opening 13 of the duct seam are fitted together, and the protruding edge is bent; the specific process is as follows:

[0078] The servo motor and reducer 55 drive the Z-axis lead screw nut slide 52 to move up and down along the height direction (i.e., Z-axis) of the gantry column 51. The Z-axis lead screw nut slide 53 is also connected to the vertical moving beam assembly 9, thereby driving the vertical moving beam assembly 9 to move up and down to adapt to ducts with different cross-sectional heights.

[0079] The fixed bracket 91 in the vertical moving beam assembly 9 is equipped with a joint assembly 98 at its end. The joint assembly 98 enables the movement of the push column 984 in the X, Z, and Y directions. In specific operation, driven by each cylinder, the push column 984 first moves along the X direction to extend into the air duct, and then rises upward along the Z direction, causing the surface where the air duct joint edge male opening 13 is located to move upward as a whole, leaving clearance space for the subsequent execution of the internal support mechanism 99.

[0080] Then, the inner support mechanism 99 is activated, and the pneumatic motor B9963 drives the inner support rod 996 to move along the X direction, and the inner support rod 996 extends into the air duct. Since the inner support mechanism 99 is installed on the Y-direction slider 96 of the first inner support locking mechanism 93, when the inner support rod 996 is fully extended into the air duct, its end is inserted into the insertion hole 9412 of the receiving seat 941 connected to the second inner support locking mechanism 94. Subsequently, the pneumatic motor A97 of the second inner support locking mechanism 94 drives the inner support rod 99 to press the surface where the female opening 12 of the seam edge is located along the Y direction to achieve fixation.

[0081] Next, the pusher 984 continues to move along the Y direction, so that the female opening 12 and the male opening 13 of the seam edge are in a ready-to-fit state, and waits for the horizontal X-direction pressing assembly 10 to perform the rolling action: under the drive of the reducer 1017 and the drive motor 1018, the pressing lifting plate 104 moves along the X direction to the end of the duct, and then moves downward along the Z direction to press the female opening 12 and the male opening 13 of the duct seam edge by the rolling shaping wheel 1041, and then moves along the X direction to fit the gap of the entire duct; then, under the cooperation of the hydraulic cylinder 915 and each folding linear guide assembly, the Y-direction sliding folding knife 92 bends the protruding edge along the Y direction to achieve the female and male opening fit state; in order to prevent the springback that may occur after bending, the above rolling action is repeated once or twice, and the duct seam is completed. The finished effect is as follows. Figure 16 As shown.

[0082] Step 4: Next, proceed with the installation of the duct corner brackets 16. Corner brackets 16 need to be installed at the four corners of the duct flange, meaning eight corner brackets are required for each standard rectangular duct section. The joined ductwork is then manually or robotically placed vertically onto the four corner bracket installation units 6. The four installation units 6 simultaneously install four corner brackets. The specific process is as follows:

[0083] In the hopper assembly 65, multiple corner brackets 16 are stacked vertically and fixed and installed on the feeding table 653 by corner bracket guide rod 651 and middle stop rod 652; after the air duct is in place, the rodless cylinder 655 drives the cutting plate 654 to move, pushing the single corner bracket 16 to fall into the corner of the air duct flange.

[0084] The pressure plate assembly 64 installed on the fixed bracket 61 performs the pressure plate operation: the pressure cylinder 643 drives the pressure arm 642 to move downward, thereby causing the pressure plate 641 to press the corner bracket 16 downward, so that the corner bracket 16 is embedded in the corner of the duct flange.

[0085] The cylinder C6321 in the inner support assembly 63 pushes the inner support block 631 against the inner wall of the air duct, while the extrusion assembly 62 performs the edge-tightening work of the air duct flange. The cylinder B6321 drives the extrusion execution head 621 to turn the outer edge of the air duct flange inward, wrapping the corner bracket 16 to prevent it from falling off.

[0086] After the four corner brackets 16 at the bottom of the duct are installed, the duct is flipped over manually or by a robot, and the installation process of the corner brackets 16 is repeated to complete the installation of the four corner brackets 16 at the top of the duct.

[0087] The embodiments described above are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Any obvious improvements, substitutions or modifications that can be made by those skilled in the art without departing from the essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A rectangular duct automatic seam closing and corner code binding integrated machine, characterized in that, It includes a seam-fitting module and a corner code synchronous installation module installed on a base (1); the seam-fitting module includes two support frames, an end face guide assembly (4), and a lifting column assembly (5). A vertical moving beam assembly (9) is installed on the lifting column assembly (5), and a horizontal X-direction pressing assembly (10) is installed on the vertical moving beam assembly (9); the corner code synchronous installation module includes four corner code installation units (6). The corner code installation unit (6) includes a fixed bracket (61) and an extrusion assembly (62), an inner support assembly (63), a pressure plate assembly (64), and a hopper assembly (65) installed on the fixed bracket (61).

2. The automatic seam closing and corner code binding machine for rectangular air ducts according to claim 1, characterized in that, Each support frame is equipped with a slide rail type slide cylinder (22) and an end positioning plate (24). A Y-axis clamping push plate (23) is installed on the sliding block of the slide rail type slide cylinder (22). The end face guide assembly (4) includes a fixed guide plate (41) fixed on the outer side of one of the support frames, and also includes a centering assembly (42) installed on the outer side of the other support frame. The centering assembly (42) includes a cylinder A (422), and the telescopic end of the cylinder A (422) is connected to the centering push plate (423). The Y-axis clamping push plate (23) cooperates with the end positioning plate (24), and the centering push plate (423) cooperates with the fixed guide plate (41) to jointly constrain the position of the air duct.

3. The automatic duct seam closing and corner code binding integrated machine according to claim 1, characterized in that, The vertical moving beam assembly (9) includes a fixed bracket (91), a Y-axis sliding folding knife (92), a first inner support locking mechanism (93), a second inner support locking mechanism (94), and a seam assembly (98). The fixed bracket (91) is fixed on the lifting column assembly (5). The Y-axis sliding folding blade (92) is connected to the fixed bracket (91) through a linear guide rail and is driven by a hydraulic cylinder to realize the duct folding. Both ends of the fixed bracket (91) are equipped with seam fitting assemblies (98). The fixed bracket (91) is also equipped with a first inner support locking mechanism (93) and a second inner support locking mechanism (94) at both ends. The first inner support locking mechanism (93) drives the Y-axis slider (96) on it to move along the Y-axis through a pneumatic motor in conjunction with a lead screw and a slide rail. The Y-axis slider (96) of the first inner support locking mechanism (93) is connected to the inner support mechanism (99) through the inner support mechanism mounting plate (951); the second inner support locking mechanism (94) is also driven by a pneumatic motor in conjunction with a lead screw and a slide rail to move the Y-axis slider (96) along the Y direction, and the Y-axis slider (96) of the second inner support locking mechanism (94) is connected to a receiving seat (941) through a slider mounting plate (9411), and the receiving seat (941) is provided with an insertion hole (9412) for the inner support rod (996) of the inner support mechanism (99) to pass through.

4. The automatic seam closing and corner code binding machine for rectangular ducts according to claim 3, characterized in that, The seam assembly (98) includes a T-shaped upright plate (981), which is connected to a fixed bracket (91). A seam lifting plate (982) that can move along the Y direction is installed on the T-shaped upright plate (981) via a linear guide rail assembly. A Z-axis sliding plate (983) that can move along the Z direction is installed on the seam lifting plate (982) via a linear guide rail assembly. A pivot (984) that can move along the X direction is connected to the end of the Z-axis sliding plate (983) via a linear guide rail assembly. The pivot (984) is used to position the male opening of the air duct.

5. The automatic duct seam closing and corner code binding integrated machine according to claim 4, characterized in that, The inner support mechanism (99) includes an inner support fixing frame (991), which is connected to the first inner support locking mechanism (93) and the support rod slide plate (992). A side support plate (994) and a first X-axis slider (9921) are installed on the support rod slide plate (992), and a second X-axis slider (9941) is installed on the side support plate (994). The first X-axis slider (9921) cooperates with the bottom linear guide rail of the inner support rod (996), and the second X-axis slider (9941) cooperates with the side linear guide rail of the inner support rod (996). A rack is also installed at the bottom of the inner support rod (996), and the rack cooperates with the end gear of the pneumatic motor on the support rod slide plate (992). The pneumatic motor drives the inner support rod (996) to slide along the X direction. An inner through-pin head (9961) that cooperates with the through hole (9412) is also installed at the end of the inner support rod (996).

6. The automatic duct seam closing and corner code binding integrated machine according to claim 1, characterized in that, The horizontal X-axis pressing component (10) includes a shaping base (101), the back of the shaping base (101) is connected to a fixed bracket (91), the front of the shaping base (101) is connected to the Z-axis pressing roller mounting plate (103) through a linear guide rail module, the Z-axis pressing roller mounting plate (103) is connected to the pressing lifting plate (104) through a linear guide rail module, and the bottom of the pressing lifting plate (104) is provided with a roller pressing shaping wheel (1041).

7. The automatic duct seam closing and corner code binding integrated machine according to claim 1, characterized in that, The extrusion assembly (62) includes a seam-closing hinge (622) welded to the bottom of the top platform plate (611) of the fixed bracket (61). The seam-closing hinge (622) is also hinged to the upper part of the extrusion actuator (621). The lower end of the extrusion actuator (621) is hinged to the piston rod end of the cylinder. The cylinder is hinged to the cylinder movable frame (623) welded to the fixed bracket (61). The inner support assembly (63) includes an inner support block (631). The bottom of the inner support block (631) is hinged to the fixed bracket (61) and the piston rod end of the cylinder. The rotating cylinder bracket (632) at the bottom of the cylinder is hinged to the fixed bracket (61).

8. The automatic duct seam closing and corner code binding integrated machine according to claim 7, characterized in that, The pressure plate assembly (64) includes an M-shaped pressure plate support top plate (6432), a downward pressure cylinder (643) is installed on the top surface of the pressure plate support top plate (6432), and a vertical plate (6434) is installed on the bottom surface. A sleeve (6435) is welded to the lower surface of the M-shaped shoulder. The vertical plate (6434) is fixed on the top platform plate (611). The end of the downward pressure arm (642) is hinged to the pressure plate (641), and a column (6411) that cooperates with the sleeve (6435) is welded on the pressure plate (641). The piston rod end of the downward pressure cylinder (643) is connected to the positioning hole of the downward pressure arm (642). The downward movement of the piston rod of the downward pressure cylinder (643) drives the downward pressure arm (642) to move downward, which in turn drives the pressure plate (641) to move downward, thereby realizing the mounting of the corner code (16).

9. The automatic seam closing and corner code binding machine for rectangular air ducts according to claim 8, characterized in that, The hopper assembly (65) includes a middle stop rod (652) and a corner bracket guide rod (651) welded to the feeding platform (653). The feeding platform (653) is fixed on the upper surface of the top platform plate (611). A rodless cylinder (655) is installed at the bottom of the feeding platform (653). The bottom of the cutting plate (654) is connected to the slider of the rodless cylinder (655). The rodless cylinder (655) pushes the cutting plate (654) to slide along the feeding platform (653) to push the corner bracket (16) parts into place for installation. The middle stop rod (652) is connected to the flange mounting plate (6431) at the bottom of the pressing cylinder (643) through an L-shaped connecting plate. The middle stop rod (652) is located in the recess of the corner bracket (16) and there is a gap between the bottom of the middle stop rod (652) and the feeding platform (653) to ensure that the cutting plate (654) can only push a single corner bracket (16) to slide at a time.

10. The automatic duct seam closing and corner code binding integrated machine according to claim 1, characterized in that, Of the four corner bracket installation units (6), one corner bracket installation unit (6) is fixed on the base (1), one corner bracket installation unit (6) is installed on the single-axis moving platform (7) to realize X-axis movement, and two corner bracket installation units are installed on the dual-axis moving platform (8) to realize bidirectional movement in X and Y directions to adapt to different sizes of air ducts.

Images