Large-span guiding and supporting device capable of being matched with cold-bending sectional materials with different section types

Abstract

The large-span guiding and supporting device capable of being matched with the cold-bent profiles with the different section types comprises four guiding and supporting plates arranged in the output direction of the cold-bent profiles, and a cavity structure allowing the cold-bent profiles to penetrate through is defined by the four guiding and supporting plates. A plurality of universal ball devices used for abutting against the side wall of the cold-bending profile are arranged on the guiding and supporting plate in the length direction. The feeding end and the discharging end of each guiding and supporting plate are fixed through an adjusting installation base, each adjusting installation base comprises a transverse adjusting mechanism, an angle adjusting mechanism and a height adjusting mechanism which are sequentially connected, and the height adjusting mechanisms are fixedly connected with the guiding and supporting plates. The device is reasonable in structure and low in cost, has the function of adjusting the left-right position, the up-down height and the angle, can avoid deformation such as bending and twisting caused by self weight and lack of constraint after a profile is separated from a roller die, ensures the section of a profile product, greatly improves the product forming precision, and effectively avoids scratches on the surface of the product.

Description

Technical Field

[0001] The invention relates to the technical field of cold-bending forming, and in particular to a large-span guide device capable of adapting to cold-bending profiles with different section shapes. Background Art

[0002] Cold roll forming is to continuously bend metal sheets such as coils and strips transversely through multiple forming rollers set in sequence to form profiles with specific cross-sections. Cold-formed profiles are light, thin-walled, and highly efficient profiles with large cross-sectional inertia moments. They are widely used in industries such as steel structures, automobiles, railway vehicles, and bridge frames. In the automotive field, the tubular beam structure profiles obtained by cold roll forming can be used as anti-collision beams, battery side beams, threshold beams, or other side beam types. In recent years, with the development of roll-bent profile production towards high added value and high precision, as well as the technical requirements for high energy absorption and lightweight of automotive parts, the forming sections have become more and more complex, and the product types have gradually developed towards special, special-shaped, and light directions. Therefore, the number of roll forming passes has gradually increased, and the spatial layout of the production line has become longer; at present, the factory roll forming line is conventionally equipped with 44 sets of roll forming stations to meet the forming requirements of most profiles.

[0003] For conventional high-strength steel tube beam structures with simple cross-sections, since the cross-section and forming process are relatively simple, fewer passes are required for forming. For example, for a simple rectangular cross-section steel tube beam, it only takes 24 passes of rolling to meet the forming requirements, and it also includes laser welding or high-frequency welding processes. Since cold-bent profile products need to be rolled at the end, and the roll forming mechanism is set downstream of the rolling production line, for conventional high-strength steel tube beam structures, after the product is formed and welded, it needs to go through multiple passes before entering the roll forming mechanism (see Figure 1 ). During the multiple-pass empty conveying process, the three-dimensional spatial state of the profile product needs to be constrained to ensure the subsequent arc quality. Therefore, a guide device needs to be set to constrain the profile to prevent the profile from bending or twisting due to its own weight after it is separated from the roller constraint.

[0004] The traditional guide device is a conventional roll forming group, which can ensure the profile structure by setting the roller type. However, the cost of the roll forming group is high, and the cost of a set of roller brackets is usually 20,000 to 30,000 yuan; therefore, in order to control the cost, the number of groups is often reduced, and a set of roller brackets is set every one or two groups to support the profile, but it is necessary to ensure that a set must be set at the nearest position in front of the roller arc.

[0005] Conventional roll forming groups are generally divided into horizontal rolls (see Figure 2 ) and vertical rollers (see Figure 3) due to the characteristics of its running mode. Horizontal rollers are prone to cause regular arc-shaped scratches on the outer surface of the product. When the product is scratched, further treatment is required, and the upper and lower rollers are subjected to PVD or TD treatment, which greatly increases the manufacturing cost. The rollers of the vertical rollers rotate horizontally. Although the scratches are improved, due to the different control accuracy and strength, they may cause straight line scratches along the longitudinal direction, and the use of vertical rollers to support the material requires additional design and installation aids. It can be seen that whether horizontal or vertical rollers are used, scratches on the profile cannot be completely avoided, and the installation and operation costs are high. Therefore, how to solve the problem of scratches on the surface of the profile under the premise of effective constraints on the cold-bent profile has become a problem that needs to be urgently solved by the current guide device. Summary of the invention

[0006] The purpose of the present invention is to provide a large-span guide device that can adapt to cold-bent profiles of different cross-sections in order to overcome the shortcomings of the prior art.

[0007] The technical solution adopted by the present invention to solve its technical problem is: A large-span guide device that can adapt to cold-bent profiles of different cross-sections includes four guide plates arranged along the output direction of the cold-bent profiles, the four guide plates enclose a cavity structure for the cold-bent profiles to pass through, and a plurality of universal ball rollers for abutting the side walls of the cold-bent profiles are arranged on the guide plates along the length direction; the feed end and the discharge end of each guide plate are fixed by an adjustment mounting seat, and the adjustment mounting seat includes a lateral adjustment mechanism, an angle adjustment mechanism and a height adjustment mechanism connected in sequence, and the height adjustment mechanism is fixedly connected to the guide plate.

[0008] A further improvement of the present invention is that: the lateral adjustment mechanism includes a mounting base plate, a slide seat fixed on the mounting base plate, and a distal slider and a proximal slider arranged in the slide seat and slidingly cooperated with the slide seat; the distal slider slides under the drive of the first lead screw, and the proximal slider slides under the drive of the second lead screw, and an operating terminal for workers to operate is provided at one end of the first lead screw and the second lead screw; threaded holes for connecting the angle adjustment mechanism are provided at the top of the distal slider and the proximal slider.

[0009] A further improvement of the present invention is that the first lead screw is transmission-connected to the distal slider and slidably connected to the proximal slider, and the second lead screw is transmission-connected to the proximal slider and slidably connected to the distal slider.

[0010] A further improvement of the present invention is that: the installation base plate is provided with a first guide groove along the length direction of the base plate, and the slide groove seat is fixedly installed in the first guide groove; the slide groove seat is also provided with a guide rail pressure plate for preventing the distal slider and the proximal slider from derailing.

[0011] A further improvement of the present invention is that: the angle adjustment mechanism includes a rotating base, a rotating table, and a worm gear assembly for driving the rotating table to rotate; the bottom of the rotating table is an arc-shaped structure and the top is a plane, and a threaded hole for connecting the height adjustment mechanism is arranged on the top plane of the rotating table; a cylindrical groove is provided on the rotating base, which slides with the arc-shaped structure of the rotating table, and the rotating table realizes angle rotation and adjustment through a worm gear assembly arranged at one end of the rotating base.

[0012] A further improvement of the present invention is that the worm gear assembly includes a group of worm wheels and worms that are matched with each other in transmission; the worm wheel is fixedly connected to the rotating table through a connecting rod and drives the rotating table to rotate synchronously; a worm that meshes with the worm wheel is arranged below the worm wheel, and both ends of the worm are mounted on a worm mounting seat.

[0013] A further improvement of the present invention is that: the height adjustment mechanism includes a lifting base spanning the slide slot seat, and a height adjustment shaft arranged on the lifting base and used to connect with the ear plate; the height adjustment shaft is provided with an external thread, and a locking nut and a plurality of sleeves of unequal thickness are mounted on the height adjustment shaft; the lifting base is threadedly connected to the distal slider / proximal slider.

[0014] A further improvement of the present invention is that: the adjusting mounting seat supporting the left and right guide plates is fixed to the base or adjacent equipment (such as a rolled table or a cold-bent table) by bolts; and a steering connecting seat is also provided between the adjusting mounting seat supporting the upper and lower guide plates and the base / adjacent equipment (such as a rolled table or a cold-bent table).

[0015] A further improvement of the present invention is that the steering connecting seat includes a steering base plate, a transverse connecting block and a vertical plate; the transverse connecting block is fixed on the steering base plate, and the vertical plate is fixed on the transverse connecting block, and a plurality of groups of mounting holes for connecting the mounting base plate are opened on the vertical plate along the height direction; the adjustment mounting seats supporting the upper and lower guide plates are respectively fixed at different height positions of the vertical plate.

[0016] A further improvement of the present invention is that the steering connecting seat also includes a pull rod assembly for driving the transverse connecting block to move.

[0017] Through the above technical solution, the beneficial effects obtained by the present invention are: The present invention provides a large-span guide device that can adapt to cold-bent profiles of different cross-sections, which can realize the output of products with fewer forming passes under constraints, ensure the cross-section of the profile product, and avoid deformation such as bending and twisting of the profile due to its own weight and lack of constraints after it leaves the roller mold. Especially for composite multi-process roller arc products, the reverse force brought by the roller arc is resisted through the guide clamping effect, which greatly improves the product forming accuracy and effectively avoids scratches on the product surface. The present invention has a reasonable structure and low cost, and replaces the investment of the original vacant position guide wheel, support wheel and roller bracket, greatly reducing the production cost.

[0018] The device of the present invention has the functions of left and right position, up and down height and angle adjustment, which can fully fit and control the three-dimensional state of the product space. The product parts generally have defects such as upward warping, downward bowing, inward and outward bending and twisting, especially compared with closed welded parts and asymmetric special-shaped parts. When the welding position is on the upper surface, the product parts warp upward; when the welding position is on the lower surface, the product parts bow downward; when the welding position is on the inside, the product parts bend inward; when the welding position is on the outside, the product parts bend outward; when the product parts are special-shaped structures, due to uneven force, the product parts are distorted in space, etc.; in response to the above defects, the guide plates of the device of the present invention can be adjusted through the left and right, up and down, and angle twisting functions to fully fit the outer wall of the profile product and improve the molding quality of the product parts. Based on the above three-dimensional adjustment function, the present invention can be adapted to a variety of cold-bent profiles with different cross-sections, including closed parts and open parts, and can also use only part of the guide plates according to the requirements of the profile roller arc. It is flexible in application and has strong versatility.

[0019] The present invention solves many negative effects brought by manual material guiding and straightening, such as potential safety hazards caused by unstable binding structure, damage to spot welding connection equipment, inconvenient debugging and disassembly, poor product precision and surface scratches of simple material support devices, etc. The present invention has strong adaptability and practicality, and can quickly adjust the center position of the product through the lateral adjustment mechanism and the height adjustment mechanism according to the parameters such as the section size and discharge height of different products, with convenient debugging and high adjustment precision.

[0020] The present invention is flexible in application, and the length of the guide plate can be adjusted according to the specific forming process of the product. The installation position is flexible and not limited, and it can be installed on a roller bending table or on a composite process equipment (such as a roller spot welder or a laser welder).

[0021] The present invention uses a plurality of universal ball rollers to constrain the product surface, converting a large sliding friction force into a very small rolling friction force, with a small contact area and small friction force, which is beneficial to reducing the upstream forming resistance and ensuring that the product is smoothly output from the guide plate under no-power conditions, and also effectively avoiding the defect of scratches on the product surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the position of the supporting material for cold-formed profiles; Figure 2 It is a schematic structural diagram of the existing horizontal roller supporting material method; Figure 3 It is a schematic structural diagram of the existing vertical roller supporting material method; Figure 4 It is a schematic structural diagram of the present invention; Figure 5 It is a partial structural diagram of the guiding and supporting plate of the present invention; Figure 6 It is a schematic diagram of the cooperation structure between the guiding and supporting plate of the present invention and the cold-formed profile with a rectangular cross-section; Figure 7 It is a schematic structural diagram of the lateral adjustment mechanism of the present invention; Figure 8 It is a schematic structural diagram of the angle adjustment mechanism of the present invention; Fig. 9 It is a schematic structural diagram of the height adjustment mechanism of the present invention; Fig.10 It is a schematic structural diagram of the steering connection seat of the present invention; Fig.11 It is a schematic diagram of the cooperation structure between the present invention and the asymmetric closed cold-formed profile; Fig.12 It is a schematic diagram of the cooperation structure between the present invention and the special-shaped symmetric closed cold-formed profile; Fig.13 It is a schematic diagram of the cooperation structure between the present invention and the special-shaped asymmetric closed cold-formed profile; Fig.14 It is a schematic diagram of the cooperation structure between the present invention and the cold-formed profile with a "J" - shaped open cross-section; Fig.15 It is a schematic diagram of the cooperation structure of the present invention using only left and right guiding and supporting plates; Fig.16 It is a schematic diagram of the cooperation structure of the present invention using only upper and lower guiding and supporting plates; In the figure, 1, guide plate, 1-1, universal ball roller, 1-2, ear plate, 1-3, mounting hole, 2, adjustment mounting seat, 2-1-1, mounting base plate, 2-1-2, slide seat, 2-1-3, far end slider, 2-1-4, near end slider, 2-1-5, far end limit block, 2-1-6, near end limit block, 2-1-7, first lead screw, 2-1-8, second lead screw, 2-1-9, operating end, 2-1-10, guide rail pressure plate, 2-1-11, oblong hole, 2-2-1, lifting base, 2-2 -2. Height adjustment shaft, 2-2-3. Bushing, 2-2-4. Locking nut, 2-2-5. Second guide groove, 2-3-1. Rotating base, 2-3-2. Rotating table, 2-3-3. Worm gear, 2-3-4. Worm, 2-3-5. Worm mounting seat, 2-3-6. Mounting side plate, 2-3-7. Worm gear pressure block, 4-1. Steering base plate, 4-2. Transverse connecting block, 4-3. Vertical plate, 4-4. Mounting space, 4-5. Reinforcement rib, 4-6. Pull rod, 4-7. Pull rod seat, 5. Cold-bent profile. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] A large-span guide device that can adapt to cold-formed profiles of different cross-sections, such as Figure 4 As shown, it includes four guide plates 1 arranged along the output direction of the cold-bent profile 5, and the four guide plates 1 enclose a cavity structure for the cold-bent profile 5 to pass through. The feed end and the discharge end of the guide plate 1 are fixed by an adjustable mounting seat 2, which is used to support the guide plate 1 and also to adjust the position, height and angle of the guide plate 1, so that the cavity structure matches the cross-section and output position of the cold-bent profile 5, ensuring effective restraint of the cold-bent profile 5 after forming and before the rolling arc.

[0025] The guide plate 1 is a long steel plate, and a plurality of mounting holes 1-3 are provided along the length direction of the guide plate 1, and a universal ball roller 1-1 is installed in each mounting hole 1-3. When the profile passes through the cavity structure enclosed by the guide plate 1, the universal ball roller 1-1 abuts against the outer wall of the profile to constrain the outer wall of the profile and prevent the outer wall of the profile from deforming. During the profile conveying process, the universal ball roller 1-1 rotates passively with the profile without active force, and will not scratch the side wall of the profile.

[0026] The universal ball roller 1-1 is preferably a shock-absorbing universal ball roller 1-1 with a shock-absorbing spring under the ball. Its own shock-absorbing property allows the ball position to have a certain fine-tuning stroke, which can ensure that the ball fully fits the side wall of the profile. Especially for profiles with a certain curvature, it can achieve effective abutment and constraint of each part and avoid hard scratches on the profile surface.

[0027] The feeding end and the discharging end of the guide plate 1 are both provided with ear plates 1 - 2 for connecting to the adjustment mounting seat 2 , and the number of the ear plates 1 - 2 at each end is not less than two to ensure the connection stability of the guide plate 1 .

[0028] The adjustment mounting seat 2 includes a lateral adjustment mechanism, an angle adjustment mechanism and a height adjustment mechanism which are connected in sequence, wherein the lateral adjustment mechanism is fixed on a base or other adjacent equipment (such as a rolling table, a cold-bent table, etc.) as a basis, the angle adjustment mechanism is installed on the lateral adjustment mechanism, and the height adjustment mechanism is installed on the angle adjustment mechanism. The height adjustment mechanism is fixedly connected to the guide plate 1 through the ear plates 1-2, thereby driving the adjustment of the position of the guide plate 1 to ensure that the position of the cavity enclosed by the four guide plates 1 is consistent with the center position of the product output.

[0029] like Figure 7 As shown, the lateral adjustment mechanism includes a mounting base plate 2-1-1, a slide seat 2-1-2, a distal slider 2-1-3 and a proximal slider 2-1-4. The slide seat 2-1-2 is fixed to the mounting base plate 2-1-1 by screws, and the two ends of the slide seat 2-1-2 are sealed by a distal stop block 2-1-5 and a proximal stop block 2-1-6 respectively; a distal slider 2-1-3 and a proximal slider 2-1-4 that can slide laterally along the slide seat 2-1-2 are arranged in the slide seat 2-1-2, and the distal slider 2-1-3 is driven by the rotation of the first lead screw 2-1-7 to achieve lateral movement, and the proximal slider 2-1-4 is driven by the rotation of the second lead screw 2-1-8 to achieve lateral movement. The first lead screw 2-1-7 and the second lead screw 2-1-8 are provided with an operating end 2-1-9 after passing through the proximal limit block 2-1-6. The worker adjusts the positions of the distal slider 2-1-3 and the proximal slider 2-1-4 by rotating the operating end 2-1-9. The distal ends of the first lead screw 2-1-7 and the second lead screw 2-1-8 are assembled on the rotating bearing of the distal limit block 2-1-5. The rotating bearing ensures the flexible rotation of the first lead screw 2-1-7 and the second lead screw 2-1-8. The tops of the distal slider 2-1-3 and the proximal slider 2-1-4 are provided with threaded holes for connecting the angle adjustment mechanism.

[0030] The proximal limit block 2-1-6 is composed of an upper fixed block and a lower fixed block (see Figure 7), a semicircular arc groove is opened on both the upper fixing block and the lower fixing block, and the combination of the two forms a through hole for the screw to pass through. The split setting of the proximal limit block 2-1-6 is conducive to the installation and maintenance of the screw.

[0031] Specifically, the first lead screw 2-1-7 is connected to the distal slider 2-1-3 by transmission and is connected to the proximal slider 2-1-4 by sliding. Similarly, the second lead screw 2-1-8 is connected to the proximal slider 2-1-4 by transmission and is connected to the distal slider 2-1-3 by sliding. The specific connection method is not limited in detail. This embodiment provides a specific connection method, that is, the side of the distal slider 2-1-3 is provided with a threaded hole for threaded connection with the first lead screw 2-1-7 and a through hole for the second lead screw 2-1-8 to pass through. The side of the proximal slider 2-1-4 is provided with a threaded hole for threaded connection with the second lead screw 2-1-8 and a through hole for the first lead screw 2-1-7 to pass through. When the first lead screw 2-1-7 rotates, it only drives the distal slider 2-1-3 to move laterally, while the proximal slider 2-1-4 does not move; when the second lead screw 2-1-8 rotates, it only drives the proximal slider 2-1-4 to move laterally, while the distal slider 2-1-3 does not move.

[0032] The first lead screw 2-1-7 and the second lead screw 2-1-8 have the same structure and are both provided with step features. Specifically, the left ends are both small-diameter ends, which are installed in conjunction with bearings on the distal limit block 2-1-5. When the lead screw rotates, the small-diameter end rotates smoothly in the bearing; the operating end on the right side of the lead screw is provided with a stepped shaft with a variable diameter, which is installed in conjunction with the through hole formed by the upper fixed block and the lower fixed block. The design features at both ends of the lead screw can realize the self-spin of the lead screw without lateral displacement, thereby ensuring that the distal slider 2-1-3 and the proximal slider 2-1-4 move laterally along the lead screw to achieve the adjustment of the lateral position of the guide plate 1.

[0033] Preferably, the installation base plate 2-1-1 is provided with a first guide groove along the length direction of the base plate, and the slide groove seat 2-1-2 is positioned and installed through the first guide groove.

[0034] Preferably, in order to ensure the horizontality of the distal slider 2-1-3 and the proximal slider 2-1-4 during the lateral movement, the slide groove seat 2-1-2 is also provided with a guide rail pressure plate 2-1-10 for preventing the distal slider 2-1-3 and the proximal slider 2-1-4 from derailing. The guide rail pressure plate 2-1-10 is threadedly connected to the slide groove seat 2-1-2. After the slide groove seat 2-1-2 is combined with the guide rail pressure blocks on both sides, the distal slider 2-1-3 and the proximal slider 2-1-4 are embedded. The distal slider 2-1-3 and the proximal slider 2-1-4 can move freely laterally inside the slide groove seat 2-1-2.

[0035] The mounting base plate 2-1-1 is also provided with oblong holes 2-1-11 for connecting with the equipment on both sides, and the mounting base plate 2-1-1 is fixed horizontally by bolts passing through the oblong holes 2-1-11. According to the center position of the profile product, the horizontal position can be greatly adjusted through the oblong holes 2-1-11.

[0036] like Figure 8 As shown, the angle adjustment mechanism includes a rotating base 2-3-1, a rotating table 2-3-2 and a worm gear assembly. A conformal guide groove structure is provided on the lower surface of the rotating base 2-3-1 for stably clamping it on the proximal slider 2-1-4 / distal slider 2-1-3; threaded holes for connecting the proximal slider 2-1-4 / distal slider 2-1-3 are also provided on the left and right sides of the rotating base 2-3-1. A cylindrical groove for accommodating the rotating table 2-3-2 is provided on the upper part of the rotating base 2-3-1, and the bottom of the rotating table 2-3-2 is an arc structure that matches the cylindrical groove. The top of the rotating table 2-3-2 is a plane, and a threaded hole for connecting the height adjustment mechanism is provided on the top of the rotating table 2-3-2. The rotating table 2-3-2 realizes its angle rotation and adjustment through a worm gear assembly provided at one end of the rotating base 2-3-1.

[0037] The worm gear assembly includes a set of worm wheels 2-3-3 and worms 2-3-4 that are mutually driven and matched. The worm wheel 2-3-3 is fixedly connected to the rotating platform 2-3-2 through a connecting rod, and drives the rotating platform 2-3-2 to rotate synchronously; a worm 2-3-4 is arranged below the worm wheel 2-3-3 to mesh with it, and both ends of the worm 2-3-4 are assembled on the worm mounting seat 2-3-5, and one end of the rotating shaft of the worm 2-3-4 is connected to a handle (not marked in the figure) for workers to operate. When the handle is turned, the rotating platform 2-3-2 is driven to rotate a certain angle through the worm gear assembly.

[0038] Both ends of the rotating base 2-3-1 are fixedly connected to a mounting side plate 2-3-6, the worm mounting seat 2-3-5 is fixed on the mounting side plate 2-3-6, and a worm wheel pressing block 2-3-7 for limiting the lateral displacement of the connecting rod is also arranged on the top of the mounting side plate 2-3-6. Semicircular holes are respectively provided on the top of the mounting side plate 2-3-6 and the turbine pressing block, and the mounting side plate 2-3-6 and the turbine pressing block are assembled by screws to form a through hole for the connecting rod to pass through, thereby ensuring that the connecting rod does not undergo lateral displacement when spinning.

[0039] like Fig. 9As shown, the height adjustment mechanism includes a lifting base 2-2-1, a height adjustment shaft 2-2-2, a sleeve 2-2-3 and a locking nut 2-2-4. The lifting base 2-2-1 is provided with a threaded hole corresponding to the threaded hole on the top of the rotating table 2-3-2, and the lifting base 2-2-1 is fixed to the rotating table 2-3-2 by bolts. A height adjustment shaft 2-2-2 for connecting with the ear plate 1-2 is arranged on the lifting base 2-2-1. The height adjustment shaft 2-2-2 is provided with an external thread, and a plurality of sleeves 2-2-3 of unequal thickness are mounted on the lower part of the height adjustment shaft 2-2-2, and a locking nut 2-2-4 is mounted on the upper part of the sleeve 2-2-3; the locking position of the ear plate 1-2 can be adjusted by the position of the sleeve 2-2-3, thereby adjusting the height of the guide plate 1.

[0040] The number of the height adjustment shafts 2-2-2 is consistent with the number of the ear plates 1-2. It is usually preferred to set two height adjustment shafts 2-2-2, which are arranged at both ends of the lifting base 2-2-1.

[0041] Preferably, each group of locking nuts 2-2-4 includes positive nuts and negative nuts that are used in conjunction with each other to prevent the nuts from loosening due to vibration.

[0042] Preferably, in order to ensure the stability of the connection between the lifting base 2-2-1 and the slider, a second guide groove 2-2-5 matching the outer diameter of the distal slider 2-1-3 / proximal slider 2-1-4 is opened at the bottom of the lifting base 2-2-1. The lifting base 2-2-1 is first clamped on the outside of the slider through the second guide groove 2-2-5 and then fastened with screws to avoid twisting and deviation between the lifting base 2-2-1 and the slider during position adjustment.

[0043] The adjustable mounting seat 2 supporting the left and right guide plates 1 can be directly fixed on the base or adjacent equipment (such as a roll-pressed table or a cold-bent table) by bolts. For the adjustable mounting seat 2 supporting the upper and lower guide plates 1, a steering connection seat is also provided between the adjustable mounting seat 2 and the base / adjacent equipment due to the installation angle.

[0044] like Fig.10 As shown, the steering connection seat includes a steering base plate 4-1, a lateral connection block 4-2 and a vertical plate 4-3. The lateral connection block 4-2 is fixed to the steering base plate 4-1 by bolts, and the vertical plate 4-3 is fixed to the lateral connection block 4-2. A plurality of mounting holes 1-3 for connecting the mounting base plate 2-1-1 are provided on the vertical plate 4-3 along the height direction. The adjustable mounting seat 2 supporting the upper and lower guide plates 1 is fixed at different height positions of the vertical plate 4-3.

[0045] Preferably, limit plates are also provided on both sides of the steering base plate 4-1 to ensure the moving stroke of the transverse connecting block 4-2.

[0046] Preferably, a reinforcing rib 4-5 is provided on the side of the vertical plate 4-3 away from the cold-bent profile 5 to enhance the overall rigidity of the structure.

[0047] The steering connection seat also includes a rod assembly for driving the transverse connection block 4-2 to move. The rod assembly includes a rod 4-6 and a rod seat 4-7. A T-shaped slot is provided on the side of the transverse connection block 4-2 away from the cold-bent profile 5, and the rod seat 4-7 is provided close to the T-shaped slot and fixed to the steering base plate 4-1 by bolts. The rod 4-6 is T-shaped, with its large end side placed in the T-shaped slot and its threaded side passing through the rod seat 4-7. A handle (not shown in the figure) is provided at the end of the rod 4-6 for easy manual force application.

[0048] The working principle of the present invention is: Connect the guide plates to the adjustment mounting seats one by one, and then adjust the horizontal position of the guide plates through the lateral adjustment mechanism, adjust the height of the guide plates through the height adjustment mechanism, and adjust the inclination angle of the guide plates through the angle adjustment mechanism according to the cross-section and center position of the cold-formed profile product, so that the cavity structure enclosed by the four guide plates is consistent with the output center of the cold-formed profile product, and the universal ball bearing can abut against the side wall of the profile, and then lock each mechanism and start use. Generally speaking, when the specifications of the cold-formed profile remain unchanged, the guide device does not need to be frequently adjusted; only when the specifications of the cold-formed profile change, adaptive position adjustment is required.

[0049] After the cold-bent profile product is output by the roll forming group, it is transported forward along the cavity structure formed by the four guide plates. The universal ball bearing abuts against the side wall of the product to constrain the shape of the product and avoid hard scratches on the surface of the profile.

[0050] The product of the present invention has wide applicability and can be used for the guide output of closed type roll-formed profiles (see Figure 6 Rectangular closed profiles, Figure 11~Figure 13 Non-rectangular closed profiles), can also be used for the guide output of open roll-formed profiles (see Fig.14 Moreover, since the four guide plates of the present invention are independently controlled, the left and right groups can be used separately according to the characteristics of the profile (see Fig.15 ) or the next group (see Fig.16 ), very flexible.

[0051] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention.

Claims

1. A large-span guide device that can adapt to cold-bent profiles of different cross-sections, characterized by: The invention comprises four guide plates (1) arranged along the output direction of the cold-bent profile (5), the four guide plates (1) enclosing a cavity structure for the cold-bent profile (5) to pass through, and a plurality of universal ball bearings (1-1) for abutting against the side walls of the cold-bent profile (5) are arranged on the guide plates (1) along the length direction; the feed end and the discharge end of each guide plate (1) are fixed and position-adjusted by an adjustment mounting seat (2), the adjustment mounting seat (2) comprising a lateral adjustment mechanism, an angle adjustment mechanism and a height adjustment mechanism connected in sequence, and the height adjustment mechanism is fixedly connected to the guide plate (1).

2. The large-span guide device that can adapt to cold-bent profiles of different cross-sections according to claim 1 is characterized in that: The lateral adjustment mechanism comprises a mounting base plate (2-1-1), a slide groove seat (2-1-2) fixed on the mounting base plate (2-1-1), and a distal slider (2-1-3) and a proximal slider (2-1-4) arranged in the slide groove seat (2-1-2) and slidingly matched with the slide groove seat (2-1-2); the distal slider (2-1-3) slides under the drive of the first lead screw (2-1-7), and the proximal slider (2-1-4) slides under the drive of the second lead screw (2-1-8); one end of the first lead screw (2-1-7) and the second lead screw (2-1-8) are both provided with an operating terminal (2-1-9) for workers to operate; the tops of the distal slider (2-1-3) and the proximal slider (2-1-4) are provided with threaded holes for connecting the angle adjustment mechanism.

3. The large-span guide device that can adapt to cold-bent profiles of different cross-sections according to claim 2 is characterized in that: The first lead screw (2-1-7) is transmission-connected to the distal slider (2-1-3) and is slidably connected to the proximal slider (2-1-4); the second lead screw (2-1-8) is transmission-connected to the proximal slider (2-1-4) and is slidably connected to the distal slider (2-1-3).

4. The large-span guide device that can adapt to cold-bent profiles of different cross-sections according to claim 3 is characterized in that: The installation base plate (2-1-1) is provided with a first guide groove along the length direction of the base plate, and the slide groove seat (2-1-2) is fixedly installed in the first guide groove; the slide groove seat (2-1-2) is also provided with a guide rail pressure plate (2-1-10) for preventing the far-end slider (2-1-3) and the near-end slider (2-1-4) from derailing.

5. The large-span guide device that can adapt to cold-bent profiles of different cross-sections according to claim 2 is characterized in that: The angle adjustment mechanism comprises a rotating base (2-3-1), a rotating platform (2-3-2), and a worm gear assembly for driving the rotating platform (2-3-2) to rotate; the rotating platform (2-3-2) has an arc-shaped structure at the bottom and a plane at the top, and a threaded hole for connecting the height adjustment mechanism is arranged on the top plane of the rotating platform (2-3-2); a cylindrical groove for slidingly matching with the arc-shaped structure of the rotating platform (2-3-2) is provided on the rotating base (2-3-1), and the rotating platform (2-3-2) realizes angle rotation and adjustment through the worm gear assembly arranged at one end of the rotating base (2-3-1).

6. The large-span guide device that can adapt to cold-bent profiles of different cross-sections according to claim 5 is characterized in that: The worm gear assembly comprises a group of worm wheels (2-3-3) and worms (2-3-4) that are in transmission cooperation; the wheel shaft of the worm wheel (2-3-3) is fixedly connected to the rotating platform (2-3-2) through a connecting rod, and drives the rotating platform (2-3-2) to rotate synchronously; a worm (2-3-4) meshing with the worm wheel (2-3-3) is arranged below the worm wheel (2-3-3), and two ends of the worm (2-3-4) are mounted on a worm mounting seat (2-3-5).

7. The large-span guide device that can adapt to cold-bent profiles of different cross-sections according to claim 5 is characterized in that: The height adjustment mechanism comprises a lifting base (2-2-1) spanning the slide slot seat (2-1-2), and a height adjustment shaft (2-2-2) arranged on the lifting base (2-2-1) and used for connecting with the ear plate (1-2); the height adjustment shaft (2-2-2) is provided with an external thread, and a locking nut (2-2-4) and a plurality of shaft sleeves (2-2-3) of different thicknesses are mounted on the height adjustment shaft (2-2-2); the lifting base (2-2-1) is threadedly connected with a distal slider (2-1-3) / a proximal slider (2-1-4).

8. The large-span guide device that can adapt to cold-bent profiles of different cross-sections according to claim 1 is characterized in that: The adjusting mounting seat (2) supporting the left and right guide plates (1) is fixed on the base or adjacent equipment by means of bolts; a steering connection seat is also provided between the adjusting mounting seat (2) supporting the upper and lower guide plates (1) and the base / adjacent equipment.

9. The large-span guide device that can adapt to cold-bent profiles of different cross-sections according to claim 8 is characterized in that: The steering connection seat comprises a steering base plate (4-1), a transverse connection block (4-2) and a vertical plate (4-3); the transverse connection block (4-2) is fixed on the steering base plate (4-1), and the vertical plate (4-3) is fixed on the transverse connection block (4-2); a plurality of groups of mounting holes for connecting the mounting base plate (2-1-1) are provided on the vertical plate (4-3) along the height direction; and the adjustment mounting seats (2) supporting the upper and lower guide plates (1) are respectively fixed at different height positions of the vertical plate (4-3).

10. The large-span guide device that can adapt to cold-bent profiles of different cross-sections according to claim 9 is characterized in that: The steering connection seat also includes a pull rod assembly used for driving the transverse connection block (4-2) to move.

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