A square light steel roll forming device and product

Abstract

The application discloses a square light steel keel roll forming device and product in the technical field of roll forming, and is characterized by comprising a feeding frame, a roll forming device, a forming frame, a blanking frame, a control table and a rack, wherein the roll forming device comprises a pattern forming roller group, a manual dial wheel mechanism, a butt joint and edge folding roller group, a bending edge forming roller group, an edge folding forming roller group, a pipe inner guide plate, a pipe outer guide plate, an extrusion forming roller group and a shaping roller group; the feeding frame, the roll forming device and the forming frame are matched to continuously perform square pipe roll forming work; the roll forming device can pretreat square pipe butt joint work; the dispersed roll forming mode can increase the fault tolerance of the plate before forming; and the forming frame can secondarily compress the square pipe after the square pipe butt joint forming, so that the quality of the square pipe butt joint is improved.

Description

Technical Field

[0001] This invention relates to the field of roll forming technology, and specifically to a roll forming device and product for square light steel keel. Background Technology

[0002] Roll forming, defined as cold forming in material forming, is a material-saving, energy-saving, and efficient metal forming method. It can continuously roll coils and flat sheets into ideal shapes to produce profiles with specific cross-sections by using several round rollers with special shapes on their outer surfaces, according to processing requirements. This processing method is particularly suitable for pipes with uniform shape, controllable length, and continuous forming requirements, and is also suitable for mass production.

[0003] For the current square light steel keel roll forming equipment and products, corresponding solutions have been developed to address the following problems:

[0004] In current square light steel keel roll forming equipment and products, during continuous roll forming, square tubes are typically formed by fastening the two sides of the sheet metal together using folded or interlocking structures. Due to the continuous and long-distance nature of square tube roll forming, existing technologies often employ simultaneous folding, significantly reducing the tolerance for folding errors. Because the roll forming process is relatively long, uneven force distribution on the sheet metal is prone to occur during the extended transmission process, affecting the forming effect. This necessitates resetting the force on the gears between the roll forming devices, which can disrupt the continuity of the square tube roll forming process and compromise the performance of the square light steel keel roll forming equipment. The need to stop the machine for resetting and readjusting the transmission torque significantly impacts the production efficiency of square tubes. Existing square tube fastener structures are typically formed entirely in the early stages, with assembly done later. This can easily lead to deformation of the fastening structure during subsequent roll forming, hindering the fastening process and increasing its difficulty. Furthermore, the lack of a secondary clamping action after fastening can cause separation of the sheet metal at the fastening point during subsequent cutting. Traditional cutting methods, often using fixed-distance cutting, can disrupt the continuity of roll forming and reduce production efficiency. Summary of the Invention

[0005] The main objective of this invention is to overcome the shortcomings of the prior art and provide a square light steel keel roll forming device and product.

[0006] This invention is achieved using the following technical solution: a square light steel keel roll forming device and product, characterized in that: it includes a feeding rack, a roll forming device, a forming rack, a discharging rack, a control console, and a frame; the feeding rack is fixedly connected to the left end of the frame; the roll forming device is installed on the upper surface of the frame; the discharging rack is fixedly connected to the right end of the roll forming device; the control console is installed on the right end of the frame; the roll forming device includes a pattern forming roller group, a manual dial mechanism, a snap-fit ​​folding roller group, a bending forming roller group, and a folding forming roller... The cylinder assembly, inner guide plate, outer guide plate, extrusion forming roller assembly, and shaping roller assembly are sequentially installed and fixed above the frame from left to right. The pattern forming roller assembly, snap-fit ​​folding roller assembly, bending forming roller assembly, folding forming roller assembly, extrusion forming roller assembly, and shaping roller assembly are located on one side of the snap-fit ​​folding roller assembly. The inner guide plate is located between the folding forming roller assembly and the extrusion forming roller assembly. The outer guide plate is located at the left end of the extrusion forming roller assembly. An L-shaped guide plate is located below the inner guide plate. A movable guide bearing is located below the outer guide plate. The feeding rack, roller forming device, and forming frame work together to continuously perform square tube roller forming.

[0007] Furthermore, the pattern forming roller assembly includes an upper pattern roller and a lower pattern roller. The upper and lower pattern rollers are fixed inside the positioning side plate at the upper end of the frame. The upper and lower pattern rollers cooperate to form a set of embossing roller structures. The pattern forming roller assembly contains several sets of embossing roller structures.

[0008] Furthermore, the snap-fit ​​folding roller assembly has four sets of pressure roller structures, each set consisting of upper and lower pressure rollers. In the first set of pressure roller structures, the upper pressure roller has a chamfered edge on its left side, and the lower pressure roller has a groove that matches the upper pressure roller. In the second set of pressure roller structures, the upper pressure roller has a chamfered edge on the inner side of the step on its right side, and the lower pressure roller has several grooves that match the upper pressure roller. In the third set of pressure roller structures, the upper pressure roller has a raised high step on its right side, and the lower pressure roller has a groove on its right side for the high step to fit. In the fourth set of pressure roller structures, the upper pressure roller has a beveled groove on its left side, a clearance groove on its right side, and the lower pressure roller has a groove that matches the upper pressure roller.

[0009] Furthermore, the bending forming roller assembly includes an upper bending roller and a lower bending roller. The upper bending roller and the lower bending roller are fixed inside the positioning side plate at the upper end of the frame. The upper bending roller and the lower bending roller cooperate to form a bending roller structure. The bending forming roller assembly is provided with several bending roller structures. The width of the guide slope of the several lower bending rollers provided in the bending forming roller assembly gradually narrows from left to right.

[0010] Furthermore, the folding forming roller assembly includes an upper folding roller and a lower folding roller. The upper folding roller and the lower folding roller are fixed inside the positioning side plate at the upper end of the frame. The upper folding roller and the lower folding roller cooperate to form a folding roller structure. The folding forming roller assembly is provided with several folding roller structures. The folding width of the several lower folding rollers provided in the folding forming roller assembly decreases sequentially from left to right.

[0011] Furthermore, the extrusion forming roller assembly includes an upper extrusion roller and a lower extrusion roller. The upper extrusion roller and the lower extrusion roller are fixed inside the positioning side plate at the upper end of the frame. The upper extrusion roller and the lower extrusion roller cooperate to form a set of extrusion roller structures. The extrusion forming roller assembly is provided with several sets of extrusion roller structures. The extrusion width of the several upper extrusion rollers provided in the extrusion forming roller assembly gradually narrows from left to right.

[0012] Furthermore, the shaping roller assembly includes an upper shaping roller, a side positioning wheel, an auxiliary roller, and a guide roller. The guide roller is located at the right end of the shaping roller assembly. The upper shaping roller, the side positioning wheel, and the auxiliary roller cooperate to form a shaping guide structure. The shaping roller assembly is provided with a plurality of the shaping guide structures.

[0013] Furthermore, the feeding rack includes an L-shaped support plate, a pressure plate, a rotating shaft pin, a U-shaped bearing, and a rotating rod. The L-shaped support plate is fixed to the left end of the frame. The pressure plate is installed on both sides of the upper surface of the L-shaped support plate. The U-shaped bearing is fixed to both ends of the pressure plate by the rotating shaft pin. The lower surface of the L-shaped support plate is provided with waist holes. The rotating rods are equidistantly distributed at the left end of the L-shaped support plate.

[0014] Furthermore, the forming frame includes a fixed frame, a locking fastener, and a rotating shaft wheel. The fixed frame is installed on the upper surface of the right end of the frame, the locking fastener is installed at the provided notch, and the rotating shaft wheel is installed below the locking fastener via a connecting rod.

[0015] Furthermore, the unloading rack includes a horizontal moving assembly and a cutting mechanism mounted above the horizontal moving assembly. The cutting mechanism includes a mounting base plate, a support rod, an upper fixed plate, a cutting table, an M-shaped cutting blade, a hydraulic cylinder, a moving slider, a side positioning component, and a discharge tray. The mounting base plate is mounted on the horizontal moving assembly via the moving slider located below. The upper fixed plate is horizontally fixed above the mounting base plate via the support rod. The discharge tray is mounted above the upper fixed plate. The hydraulic cylinder is vertically mounted on the lower surface of the mounting base plate. The M-shaped cutting blade is fixed to the upper output end of the hydraulic cylinder. The cutting table is symmetrically distributed on the lower surface of the upper fixed plate. The side positioning component is fixed to one side of the upper fixed plate.

[0016] Furthermore, the frame includes a fixed frame, a drive motor assembly, a transmission gear assembly, and a positioning side plate. The drive motor assembly is fixedly connected to the bottom of the fixed frame, the transmission gear assembly is installed above the fixed frame, the positioning side plate is vertically and parallelly installed on the upper surface of the fixed frame, the transmission gear assembly meshes with the gears in the roll forming device, and the drive motor assembly is fixedly connected to the lower end of the fixed frame.

[0017] Furthermore, the manual dial mechanism includes a lever, a support rod, a hinge frame, a guide shaft, a turning screw, and a driven gear. The lever is vertically fixed to the upper surface of the hinge frame, the hinge frame is hinged to the support rod, the turning screw is installed at the lower end of the hinge frame, the driven gear is fixed to the left end of the guide shaft, and the guide shaft is horizontally installed on the positioning side plate.

[0018] Furthermore, the product has a frame-like structure, with the upper part of the product being interlocked, and several parallel patterns distributed on both sides of its outer surface, and several horizontally arranged reinforcing ribs at the bottom.

[0019] Beneficial effects

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention adopts a manual dial mechanism in conjunction with a double-chain drive for the frame, which can quickly reset the transmission error of the roll forming device, making the sheet metal parts evenly stressed front and back. The roll forming device can pre-process the square tube fastening work. The use of dispersed roll forming can increase the error tolerance of the sheet metal before forming, providing convenience for the subsequent square tube fastening work. The forming frame can perform secondary pressing on the square tube fastening part after the square tube is formed, improving the quality of the square tube fastening, and can feed the square tube into the subsequent cutting work in a stable posture. The unloading frame adopts a synchronous movement with the square tube to perform the cutting work, and can cut the square tube without affecting the continuous roll forming of the square tube, thus not affecting the square tube production efficiency. Attached Figure Description

[0021] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 This is a top view of the roll forming apparatus of the present invention.

[0024] Figure 3 This is a schematic diagram showing the positional distribution of the lower rollers in the roll forming device of the present invention.

[0025] Figure 4This is a rear view of the internal structure of the roll forming apparatus of the present invention.

[0026] Figure 5 This is a three-dimensional structural diagram of the front end of the overall structure of the present invention.

[0027] Figure 6 This is a three-dimensional structural diagram of the rear end of the overall structure of the present invention.

[0028] Figure 7 This is a schematic diagram of the internal structure of the feed rack of the present invention.

[0029] Figure 8 This is a three-dimensional structural diagram of the L-shaped support plate of the present invention.

[0030] Figure 9 This is a three-dimensional structural diagram of the manual dial mechanism of the present invention.

[0031] Figure 10 This is a schematic diagram of the internal structure of the cutting mechanism of the present invention.

[0032] Figure 11 This is a three-dimensional structural diagram of the guide plate inside the pipe of the present invention.

[0033] Figure 12 This is a three-dimensional structural diagram of the outer guide plate of the pipe of the present invention.

[0034] Figure 13 This is a front view of the first set of pressure roller structure of the present invention.

[0035] Figure 14 This is a front view of the second set of pressure roller structure of the present invention.

[0036] Figure 15 This is a front view of the third group of pressure roller structures of the present invention.

[0037] Figure 16 This is a front view of the fourth group of pressure roller structures of the present invention.

[0038] Figure 17 This is a front view of the square light steel keel of the present invention.

[0039] In the diagram: 1. Feeding rack; 2. Roll forming device; 3. Forming rack; 4. Unloading rack; 5. Control console; 6. Machine frame; 21. Pattern forming roller assembly; 22. Manual dial mechanism; 23. Button-locking and folding roller assembly; 24. Bending forming roller assembly; 25. Folding forming roller assembly; 26. Inner guide plate for pipe; 27. Outer guide plate for pipe; 28. Extrusion forming roller assembly; 29. ​​Shaping roller assembly; 211. Upper patterned roller; 212. Lower patterned roller; 231. Pressure roller structure; 241. Upper folding roller; 242. Lower folding roller; 251. Upper bending roller; 252. Lower bending roller; 281. Upper extrusion roller; 282. Lower extrusion roller; 291. Upper shaping roller; 29. ​​Side positioning wheel. 2. Auxiliary roller 293, guide roller 294, L-shaped support plate 11, pressure plate 12, rotating shaft pin 13, U-shaped bearing 14, rotating rod 15, fixed frame 31, locking fastener 32, rotating shaft wheel 33, mounting base plate 421, support rod 422, upper fixed plate 423, cutting table 424, M-shaped cutting knife 425, hydraulic cylinder 426, moving slider 427, side positioning component 428, discharge tray 429, fixed frame 61, drive motor assembly 62, transmission gear assembly 63, positioning side plate 64, lever 221, support fixing rod 222, hinge frame 223, guide horizontal shaft 224, toggle screw 225, driven gear 226. Detailed Implementation

[0040] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] Please see Figure 1-17 This invention provides a square light steel keel roll forming device and product technical solution: A square light steel keel roll forming device and product includes a feeding rack 1, a roll forming device 2, a forming rack 3, a discharging rack 4, a control console 5, and a machine frame 6. The feeding rack 1 is fixed to the left end of the machine frame 6, the roll forming device 2 is installed on the upper surface of the machine frame 6, the discharging rack 4 is fixed to the right end of the roll forming device 2, and the control console 5 is installed on the right end of the machine frame 6. The roll forming device 2 includes a pattern forming roller group 21, a manual dial mechanism 22, a snap-fit ​​folding edge roller group 23, a bending edge forming roller group 24, a folding edge forming roller group 25, an inner guide plate for the pipe 26, an outer guide plate for the pipe 27, an extrusion forming roller group 28, and a shaping roller group 29, as shown in the attached figure. Figure 2As shown, the pattern forming roller group 21, the snap-fit ​​folding roller group 23, the bending forming roller group 24, the folding forming roller group 25, the extrusion forming roller group 28, and the shaping roller group 29 are sequentially installed and fixed to the frame 6 from left to right. Above, the manual dial mechanism 22 is located on one side of the snap-fit ​​folding roller group 23. The inner guide plate 26 of the tube is located between the folding forming roller group 25 and the extrusion forming roller group 28. The outer guide plate 27 of the tube is located at the left end of the extrusion forming roller group 28. An L-shaped guide plate 261 is provided below the inner guide plate 26 of the tube. The horizontal part of the L-shaped guide plate 261 can support the inside of the square tube and guide the upper opening of the square tube. A movable guide bearing 271 is provided below the outer guide plate 27 of the tube. There are two sets of guide bearings 271, which are respectively installed in the waist holes provided in the outer guide plate 27 of the tube. The spacing between the guide bearings 271 can be adjusted by bolts. The feeding rack 1, the roll forming device 2 and the forming rack 3 cooperate to continuously perform the roll forming of square tubes.

[0042] As attached Figure 5 As shown, the pattern forming roller assembly 21 is provided with an upper pattern roller 211 and a lower pattern roller 212. The upper pattern roller 211 and the lower pattern roller 212 are fixed in the upper positioning side plate 64 of the frame 6. The upper pattern roller 211 and the lower pattern roller 212 cooperate to form a set of embossing roller structures. The pattern forming roller assembly 21 is provided with several sets of embossing roller structures.

[0043] As attached Figure 2 As shown, the snap-fit ​​folding roller assembly 23 has four sets of pressure roller structures 231. Each set of pressure roller structures 231 consists of upper and lower pressure rollers. In the first set of pressure roller structures 231, the upper pressure roller has a chamfered edge on its left side, and the lower pressure roller has a groove that matches the upper pressure roller. In the second set of pressure roller structures 231, the upper pressure roller has a chamfered edge on the inner side of the step on its right side, and the lower pressure roller has several grooves that match the upper pressure roller. In the third set of pressure roller structures 231, the upper pressure roller has a raised high step on its right side, and the lower pressure roller has a groove on its right side for the high step to fit. In the fourth set of pressure roller structures 231, the upper pressure roller has a beveled groove on its left side, a clearance groove on its right side, and the lower pressure roller has a groove that matches the upper pressure roller.

[0044] As attached Figure 2 As shown, the bending forming roller assembly 24 includes an upper bending roller 241 and a lower bending roller 242. The upper bending roller 241 and the lower bending roller 242 are fixed in the upper positioning side plate 64 of the frame 6. The upper bending roller 241 and the lower bending roller 242 cooperate to form a bending roller structure. The bending forming roller assembly 24 is provided with several bending roller structures. The width of the guide slope of the several lower folding rollers 252 provided in the bending forming roller assembly 24 gradually narrows from left to right.

[0045] As attached Figure 2 As shown, the folding forming roller assembly 25 includes an upper folding roller 251 and a lower folding roller 252. The upper folding roller 251 and the lower folding roller 252 are fixed in the upper positioning side plate 64 of the frame 6. The upper folding roller 251 and the lower folding roller 252 cooperate to form a folding roller structure. The folding forming roller assembly 25 is provided with several folding roller structures. The folding width of the several lower folding rollers 252 provided in the folding forming roller assembly 25 decreases from left to right.

[0046] As attached Figure 2 As shown, the extrusion forming roller assembly 28 includes an upper extrusion roller 281 and a lower extrusion roller 282. The upper extrusion roller 281 and the lower extrusion roller 282 are fixed in the upper positioning side plate 64 of the frame 6. The upper extrusion roller 281 and the lower extrusion roller 282 cooperate to form an extrusion roller structure. The extrusion forming roller assembly 28 is provided with several extrusion roller structures. The extrusion width of the several upper extrusion rollers 281 provided in the extrusion forming roller assembly 28 gradually narrows from left to right.

[0047] As attached Figure 3 As shown, the shaping roller assembly 29 includes an upper shaping roller 291, a side positioning wheel 292, an auxiliary roller 293, and a guide roller 294. The guide roller 294 is located at the right end of the shaping roller assembly 29. The upper shaping roller 291, the side positioning wheel 292, and the auxiliary roller 293 cooperate to form a shaping guide structure. The shaping roller assembly 29 is provided with a plurality of such shaping guide structures. A range gauge is provided between the guide roller 294 and the upper shaping roller 291, and the required length of the pipe to be cut can be set by the range gauge.

[0048] As attached Figure 7 As shown, the feeding rack 1 includes an L-shaped support plate 11, a pressure plate 12, a rotating shaft pin 13, a U-shaped bearing 14, and rotating rods 15. The L-shaped support plate 11 is fixed to the left end of the frame 6. The pressure plate 12 is installed on both sides of the upper surface of the L-shaped support plate 11. The U-shaped bearings 14 are fixed to both ends of the pressure plate 12 by the rotating shaft pin 13. The lower surface of the L-shaped support plate 11 is provided with a waist hole, which allows the pressure plate 12 to move horizontally. The fixing bolts of the pressure plate 12 are fixed to the upper part of the L-shaped support plate 11 through the waist hole. The position of the pressure plate 12 can be adjusted by screwing in the positioning bolts on the side plate of the upper surface of the L-shaped support plate 11. The spacing between the U-shaped bearings 14 can also be adjusted. The rotating rods 15 are evenly distributed on the left end of the L-shaped support plate 11, and each rotating rod 15 can rotate independently.

[0049] As attached Figure 6As shown, the forming frame 3 includes a fixed frame 31, a locking fastener 32, and a rotating wheel 33. The fixed frame 31 is installed on the upper surface of the right end of the frame 6. The locking fastener 32 is installed at the notch. The rotating wheel 33 is installed below the locking fastener 32 via a connecting rod. The rotating wheel 33 is installed inside the fixed frame with a staggered vertical position. The groove on the rotating wheel 33 enables the square tube to be guided. The position and height of the rotating wheel 33 can be adjusted individually by the adjusting bolt on the locking fastener 32, so that the distance between several rotating wheels 33 can be adjusted, the gap of the square tube can be adjusted, and the shape of the profile can be further stabilized.

[0050] As shown in Appendix 10, the unloading rack 4 includes a horizontal moving assembly 41 and a cutting mechanism 42 mounted above the horizontal moving assembly 41. The cutting mechanism 42 includes a mounting base plate 421, a support rod 422, an upper fixed plate 423, a cutting table 424, an M-shaped cutting blade 425, a hydraulic cylinder 426, a sliding block 427, a side positioning component 428, and a discharge tray 429. The mounting base plate 421 is mounted on the horizontal moving assembly 41 via the sliding block 427 located below it. The mounting base plate 421 can perform linear reciprocating motion on the horizontal moving assembly 41 via the sliding block 427. The upper fixed plate 423 is horizontally fixed above the mounting base plate 421 via the support rod 422. A bearing seat connected to the horizontal moving assembly 41 is provided on the left side of the mounting base plate 421. The horizontal moving assembly 41 can push the mounting base plate 421 to move horizontally via the bearing seat. The discharge tray 429 is mounted above the upper fixed plate 423. The hydraulic cylinder 426... The M-shaped cutting blade 425 is fixed to the upper output end of the hydraulic cylinder 426 and is vertically installed on the lower surface of the mounting base plate 421. The cutting table 424 is symmetrically distributed on the lower surface of the upper fixed plate 423. The cutting table 424 is provided with a groove for the cutting blade 425 to move between the cutting tables 424. The side positioning member 428 is fixed to one side of the upper fixed plate 423.

[0051] As attached Figure 4 As shown, the frame 6 includes a fixed frame 61, a drive motor assembly 62, a transmission gear assembly 63, and a positioning side plate 64. The drive motor assembly 62 is fixedly connected to the bottom of the fixed frame 61, the transmission gear assembly 63 is installed above the fixed frame 61, and the positioning side plate 64 is vertically and parallelly installed on the upper surface of the fixed frame 61. The transmission gear assembly 63 meshes with the gears in the roll forming device 2. The drive motor assembly 62 is fixedly connected to the lower end of the fixed frame 61. Two sets of transmission gear assemblies 63 are provided on the top of the frame 6. The drive motor assembly 62 drives the two sets of transmission gear assemblies 63 to rotate through a transmission chain. The two sets of transmission gear assemblies 63 rotate in the same direction.

[0052] As attached Figure 9As shown, the manual dial mechanism 22 includes a lever 221, a support rod 222, a hinge frame 223, a guide horizontal shaft 224, a turning screw 225, and a driven gear 226. The lever 221 is vertically fixed to the upper surface of the hinge frame 223. The hinge frame 223 is hinged to the support rod 222. The upper end of the hinge frame 223 can swing with the front end of the support rod 222 as the fulcrum. The turning screw 225 is installed at the lower end of the hinge frame 223. The driven gear 226 is fixed to the left end of the guide horizontal shaft 224. There is a certain distance between the left end of the driven gear 226 and the left end of the guide horizontal shaft 224, which allows the turning screw 225 to move. The guide horizontal shaft 224 is horizontally installed on the positioning side plate 64. The guide horizontal shaft 224 can move horizontally on the positioning side plate 64. The guide horizontal shaft 224 and the mounting center height of several gears provided below the positioning side plate 64 are consistent.

[0053] As attached Figure 17 As shown, the product has a frame-like structure. The upper part of the product is interlocked, and there are several parallel patterns on both sides of its outer surface. There are several horizontally arranged reinforcing ribs at the bottom.

[0054] The working principle of the square light steel keel roll forming device and product of the present invention:

[0055] When the square light steel keel roll forming device and products are used, as shown below Figure 1 As shown, the sheet metal roll is placed horizontally into the feeding rack. The control console controls the machine frame and the roll forming device. The sheet metal roll passes through the feeding rack, the roll forming device, the forming rack and the unloading rack from left to right in a continuous roll forming and cutting process. The control console is electrically connected to the machine frame and the roll forming device. The control console can control the working parameters of the machine frame and the roll forming device.

[0056] As attached Figure 5 As shown, the sheet metal roll is first placed horizontally into the feed rack. The rotating rod supports the sheet metal roll, and then the sheet metal roll is continued to be pulled horizontally, as shown in the attached diagram. Figure 7As shown, by adjusting the distance between the pressure plates, the four U-shaped bearings can better cooperate with the sheet metal roll to slide, so that the sheet metal roll is in a relatively stable position during the feeding stage. Then, the sheet metal roll is pulled into the roll forming device. The pattern forming roller group in the roll forming device first performs the biting and rolling work on the front end of the sheet metal roll. The upper and lower pattern rollers in the pattern forming roller group bite the sheet metal roll. As the upper and lower pattern rollers continue to rotate, they will drive the sheet metal roll from left to right. Several sets of embossing roller structures in the pattern forming roller group perform embossing work on the sheet metal roll. According to the embossing roller structure, a specific pattern can be pressed out. After embossing, the sheet metal roll will enter the snap-fit ​​and folding roller group. Several sets of pressure roller structures in the snap-fit ​​and folding roller group will perform snap-fit ​​and folding processing on the sheet metal roll.

[0057] As attached Figure 13 As shown, the first set of pressure rollers first bends the left side of the sheet metal roll by the left chamfer edge of the upper pressure roller, which is a preliminary step for the snapping operation. The lower pressure roller then bends the left side of the sheet metal roll before it enters the second set of pressure rollers.

[0058] As attached Figure 14 As shown, in the second set of pressure roller structure, the left side of the coil sheet metal is bent upward by the right-angled edge on the left side of the upper pressure roller, while the right side of the upper pressure roller bends the right side of the coil sheet metal downward. The lower pressure roller cooperates with the upper pressure roller to support and pull the coil sheet metal, and then continues to enter the third set of pressure roller structure.

[0059] As attached Figure 15 As shown, in the third set of pressure roller structure, the high step on the right side of the upper pressure roller and the groove on the right side of the lower pressure roller are used to press and form the bent edge on the right side of the coil sheet metal. The right side of the coil sheet metal is first formed by snapping together. At this time, the left side of the coil sheet metal is still in a 90° bent state. The lower pressure roller and the upper pressure roller support and pull the coil sheet metal, and then it continues to enter the fourth set of pressure roller structure.

[0060] As attached Figure 16 As shown, in the fourth group of pressure roller structure, the inclined groove on the left side of the upper pressure roller bends the right-angled edge of the sheet metal on the left side. In conjunction with the groove on the left side of the lower pressure roller, the right-angled edge of the sheet metal on the left side can be bent into a 135° bent edge state, which prepares for the subsequent snap-fit ​​structure. The already formed folded edge on the right side of the sheet metal can be smoothly pulled and cooperated with the groove on the right side of the lower pressure roller through the clearance groove on the right side of the upper pressure roller. At the same time, the clearance groove on the right side of the upper pressure roller presses and shapes the already formed folded edge on the right side of the sheet metal, and then continues to enter the bending edge forming roller group for bending edge work.

[0061] As attached Figure 2 As shown, after the sheet metal coil enters the bending forming roller assembly, several bending roller structures bend the sheet metal coil. The bending roller structure composed of the upper and lower bending rollers bends both sides of the sheet metal coil. Through the cooperation of multiple bending roller structures, as shown in the attached diagram... Figure 3 As shown, the guide slopes of several lower bending rollers gradually narrow from left to right, which will gradually bend the left and right sides of the coil sheet metal to 90° through the upper and lower bending rollers, and finally send the coil sheet metal after bending on both sides into the bending forming roller group.

[0062] As attached Figure 2 As shown, after the sheet metal roll enters the folding and forming roller group, several folding roller structures fold the sheet metal roll. The folding roller structure composed of the upper folding roller and the lower folding roller will use the middle part of the sheet metal roll as a reference to bend the two sides of the middle part. Through the cooperation of multiple folding roller structures, the folding width of several lower folding rollers decreases from left to right. The two sides of the middle part of the sheet metal roll will be gradually bent upward to 90° by the upper folding roller and the lower folding roller. Finally, the sheet metal with the two sides of the middle part presenting a 90° posture will be sent into the extrusion forming roller group.

[0063] As attached Figure 2 As shown, before the sheet metal coil enters the extrusion forming roller assembly, the sheet metal coil, after undergoing edge folding, preferentially contacts the inner guide plate of the tube, as shown in the attached diagram. Figure 11 As shown, the inner guide plate of the tube supports and guides the inside of the folded sheet metal roll to prevent excessive compression from causing excessive deformation of the folded sheet metal roll. After passing through the inner guide plate of the tube, it continues to be fed into the extrusion forming roller group. The extrusion forming roller group has several extrusion roller structures that extrude the edge interlocking structure of the bent sheet metal roll. The upper extrusion roller extrudes and guides the upper end of the sheet metal roll, so that the interlocking structure of the sheet metal roll is brought closer to each other. The guide bearing in the outer guide plate of the tube at the left end of the extrusion forming roller group guides the gradually forming square tube of sheet metal roll, preventing the square tube from deviating from its position, and fixing the interlocking structure formed earlier in the sheet metal roll. After being extruded by several sets of extrusion roller structures.

[0064] As attached Figure 3 As shown, after the interlocking structure is extruded, the square tube formed from the sheet metal roll enters the shaping roller group. The shaping roller group further shapes the extruded square tube. Through the cooperation of the upper shaping roller, side positioning roller and auxiliary roller, the interlocking structure on the top of the square tube is gradually pressed and sealed, which can shape the square tube around the perimeter, making the square tube into a 90° square profile. A range gauge is installed between the guide roller and the upper shaping roller. The range gauge can be used to set the length of the tube to be cut. Then the guide roller guides the square tube and outputs it out of the roll forming device. At this time, the square tube profile is completed.

[0065] As attached Figure 6 As shown, the square tube profile then enters the forming frame to prepare for the subsequent cutting work and further stabilize the shape of the profile. After the square tube enters the forming frame, it is guided by several vertically staggered rotating shafts to keep the square tube in a horizontal transport state, and then prepares to cut the square tube.

[0066] As attached Figure 6 As shown, after the square tube enters the unloading rack, the head of the square tube first passes through the cutting table in the cutting mechanism. The cutting table provides support for the front end of the square tube. While the square tube is moving, in order to achieve relative movement of the M-type cutting blade and avoid disrupting the continuity of the square tube forming due to the cutting action, the horizontal moving component drives the cutting mechanism to move synchronously with the square tube. The mounting base moves horizontally in cooperation with the horizontal moving component. When the mounting base moves the cutting table with the square tube to a certain distance, the cutting work begins. The M-type cutting blade is powered by a hydraulic cylinder and moves vertically upward. It cuts the square tube in the groove provided by the cutting table. The waste generated during the square tube cutting process is placed on the discharge tray. After the cutting work is completed, the horizontal moving component drives the cutting mechanism to reset, preparing for the next cutting work.

[0067] As attached Figure 17 As shown, the square light steel keel product has an overall frame structure. The upper part of the product has an interlocking shape, and its outer surface has several parallel patterns on both sides. The lower bottom has several horizontally arranged reinforcing ribs.

[0068] As attached Figure 4 As shown, because the drive motor unit uses a double chain gear transmission, uneven force on the front and rear of the sheet metal during the production of coiled sheet metal can easily occur, leading to extrusion deformation of the coiled sheet metal. To prevent gear slippage, a manual dial mechanism is provided at the front end of the roll forming device as a controllable transmission connector. When the coiled sheet metal is halfway fed, the driven bearing gear driven by the frame is in the transmission process. When it is necessary to connect the front and rear ends of the roll forming device, the driven gear can be engaged with the driven bearing gear by turning the lever in the manual dial mechanism to achieve the purpose of connection and transmission. During the turning process, as shown in the attached figure... Figure 9 As shown, the hinge frame connected to the lever uses the connection of the support rod as a fulcrum. Through lever movement, the lever screw will be moved. The lever screw is located between the guide horizontal axis and the driven gear. The lever screw will push the driven gear to move laterally, so that the driven gear moves horizontally along the guide horizontal axis until it meshes with the passive bearing gear. Before operating the manual lever mechanism, the drive motor unit needs to be in a stopped state.

[0069] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A square light steel keel roll forming device, characterized in that: It includes a feeding rack (1), a roll forming device (2), a forming rack (3), a unloading rack (4), a control console (5), and a machine frame (6). The feeding rack (1) is fixed to the left end of the frame (6), the roll forming device (2) is installed on the upper surface of the frame (6), the unloading rack (4) is fixed to the right end of the roll forming device (2), and the control console (5) is installed on the right end of the frame (6). The roll forming device (2) includes a pattern forming roller group (21), a snap-fit ​​folding roller group (23), a bending forming roller group (24), a folding forming roller group (25), an inner guide plate (26) for the pipe, an outer guide plate (27) for the pipe, an extrusion forming roller group (28), and a shaping roller group (29). The pattern forming roller group (21), the snap-fit ​​folding roller group (23), the bending forming roller group (24), the folding forming roller group (25), the extrusion forming roller group (28), and the shaping roller group (29) are arranged sequentially from left to right. The tube is fixed above the frame (6). The inner guide plate (26) is located between the folding forming roller group (25) and the extrusion forming roller group (28). The outer guide plate (27) is located at the right end of the extrusion forming roller group (28). An L-shaped guide plate (261) is provided below the inner guide plate (26). A movable guide bearing (271) is provided below the outer guide plate (27). The feeding rack (1), the roll forming device (2), and the forming rack (3) cooperate to continuously perform square tube roll forming. The folding roller assembly (23) is provided with four sets of pressure roller structures (231). Each of the four sets of pressure roller structures (231) consists of upper and lower pressure rollers. In the first set of pressure roller structures (231), the upper pressure roller has a chamfered edge on the left side, and the lower pressure roller has a groove that matches the upper pressure roller. In the second set of pressure roller structures (231), the upper pressure roller has a chamfered edge on the inner side of the step on the right side, and the lower pressure roller has several grooves that match the upper pressure roller. In the third set of pressure roller structures (231), the upper pressure roller has a raised high step on the right side, and the lower pressure roller has a raised high step on the right side. The groove for the high-level step is provided. In the fourth group of the pressure roller structure (231), the upper pressure roller is provided with a slanted groove on the left side, the upper pressure roller is provided with a clearance groove on the right side, and the lower pressure roller is provided with a groove for forming with the upper pressure roller. The forming frame (3) includes a fixed frame (31), a locking fastener (32), and a rotating shaft wheel (33). The fixed frame (31) is installed on the upper surface of the right end of the frame (6). The locking fastener (32) is installed at the notch provided in the fixed frame (31). The rotating shaft wheel (33) is installed below the locking fastener (32) through a connecting rod.

2. The square light steel keel roll forming device according to claim 1, characterized in that: The pattern forming roller assembly (21) is provided with an upper pattern roller (211) and a lower pattern roller (212). The upper pattern roller (211) and the lower pattern roller (212) are fixed in the upper positioning side plate (64) of the frame (6). The upper pattern roller (211) and the lower pattern roller (212) cooperate to form a set of embossing roller structures. The pattern forming roller assembly (21) is provided with several sets of embossing roller structures.

3. The square light steel keel roll forming device according to claim 1, characterized in that: The bending forming roller assembly (24) includes an upper bending roller (241) and a lower bending roller (242). The upper bending roller (241) and the lower bending roller (242) are fixed in the upper positioning side plate (64) of the frame (6). The upper bending roller (241) and the lower bending roller (242) cooperate to form a bending roller structure. The bending forming roller assembly (24) is provided with several bending roller structures.

4. The square light steel keel roll forming device according to claim 3, characterized in that: The folding forming roller group (25) includes an upper folding roller (251) and a lower folding roller (252). The upper folding roller (251) and the lower folding roller (252) are fixed in the upper positioning side plate (64) of the frame (6). The upper folding roller (251) and the lower folding roller (252) cooperate to form a folding roller structure. The folding forming roller group (25) is provided with several folding roller structures. The folding width of the several lower folding rollers (252) provided in the folding forming roller group (25) decreases from left to right. The guide slope width of the several lower bending rollers (242) provided in the bending forming roller group (24) gradually narrows from left to right.

5. The square light steel keel roll forming device according to claim 1, characterized in that: The extrusion forming roller assembly (28) includes an upper extrusion roller (281) and a lower extrusion roller (282). The upper extrusion roller (281) and the lower extrusion roller (282) are fixed in the upper positioning side plate (64) of the frame (6). The upper extrusion roller (281) and the lower extrusion roller (282) cooperate to form an extrusion roller structure. The extrusion forming roller assembly (28) is provided with several extrusion roller structures. The extrusion width of the several upper extrusion rollers (281) provided in the extrusion forming roller assembly (28) gradually narrows from left to right.

6. The square light steel keel roll forming device according to claim 1, characterized in that: The shaping roller assembly (29) includes an upper shaping roller (291), a side positioning wheel (292), an auxiliary roller (293), and a guide roller (294). The guide roller (294) is located at the right end of the shaping roller assembly (29). The upper shaping roller (291), the side positioning wheel (292), and the auxiliary roller (293) cooperate to form a shaping guide structure. The shaping roller assembly (29) is provided with a plurality of the shaping guide structures.

7. The square light steel keel roll forming device according to claim 1, characterized in that: The feeding rack (1) includes an L-shaped support plate (11), a pressure plate (12), a rotating shaft pin (13), a U-shaped bearing (14), and a rotating rod (15). The L-shaped support plate (11) is fixed to the left end of the frame (6). The pressure plate (12) is installed on both sides of the upper surface of the L-shaped support plate (11). The U-shaped bearing (14) is fixed to both ends of the pressure plate (12) by the rotating shaft pin (13). The lower surface of the L-shaped support plate (11) is provided with waist holes. The rotating rod (15) is equidistantly distributed at the left end of the L-shaped support plate (11).

8. The square light steel keel roll forming device according to claim 1, characterized in that: The unloading rack (4) includes a horizontal moving assembly (41) and a cutting mechanism (42) mounted above the horizontal moving assembly (41). The cutting mechanism (42) includes a mounting base plate (421), a support rod (422), an upper fixing plate (423), a cutting table (424), an M-type cutting blade (425), a hydraulic cylinder (426), a moving slider (427), a side positioning component (428), and a discharge tray (429). The mounting base plate (421) is mounted on the horizontal moving assembly via the moving slider (427) located below. (41) The upper fixing plate (423) is horizontally fixed above the mounting base plate (421) by the support rod (422), the discharge plate (429) is installed above the upper fixing plate (423), the hydraulic cylinder (426) is vertically installed on the lower surface of the mounting base plate (421), the M-type cutting knife (425) is fixed to the upper output end of the hydraulic cylinder (426), the cutting table (424) is symmetrically distributed on the lower surface of the upper fixing plate (423), and the side positioning member (428) is fixed to one side of the upper fixing plate (423).

9. The square light steel keel roll forming device according to claim 1, characterized in that: The frame (6) includes a fixed frame (61), a drive motor assembly (62), a transmission gear assembly (63), and a positioning side plate (64). The drive motor assembly (62) is fixed below the fixed frame (61), the transmission gear assembly (63) is installed above the fixed frame (61), and the two positioning side plates (64) are installed in parallel on the upper surface of the fixed frame (61). The transmission gear assembly (63) meshes with the gear in the roll forming device (2).

10. The product formed by the square light steel keel roll forming device according to any one of claims 1-9, characterized in that: The product has a frame-like structure. The upper part of the product is interlocked, and there are several parallel patterns on both sides of its outer surface. There are several horizontally arranged reinforcing ribs at the bottom.

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