An aluminum profile straightening device

Abstract

The present invention relates to the technical field of aluminum profile processing equipment, and discloses an aluminum profile straightening device, which includes a frame. An installation frame for fixing a stretching and straightening mechanism is fixedly arranged on the frame. The stretching and straightening mechanism includes a clamping mechanism I and a clamping mechanism II for clamping the aluminum profile, and a driving part for driving the clamping mechanism I and the clamping mechanism II to stretch and straighten the aluminum profile. A horizontal chute I is arranged on the installation frame, and both the clamping mechanism I and the clamping mechanism II are slidably connected to the horizontal chute I. The driving part includes a connecting rod I and a connecting rod II. The lower ends of the connecting rod I and the connecting rod II are respectively rotatably connected to the clamping mechanism I and the clamping mechanism II. The connecting rod I and the connecting rod II are both connected to a driving cylinder through a connecting block. The driving cylinder is slidably connected to a horizontal chute II on the installation frame, and has the advantages of simple structure, good straightening effect, high straightening efficiency and low manual labor intensity.

Description

Technical Field

[0001] The present invention relates to the technical field of aluminum profile processing equipment, and particularly relates to an aluminum profile straightening device. Background Art

[0002] Due to the fact that aluminum alloy profiles will undergo bending deformation after processes such as traction, quenching, and handling during the extrusion process, and concentrated stress will be generated at different cross-sectional positions. To solve this problem, it is required to straighten and shape the extruded profiles after they are cooled to room temperature.

[0003] There are many methods for straightening aluminum profiles. The most common stretching straightening method in factories is to use a straightening machine. The method is to adjust and fix the stretching head on the stretching track so that the distance between the moving stretching head of the straightening machine and the fixed stretching head can clamp an aluminum profile to be straightened. Then, the moving stretching head and the fixed stretching head clamp the two ends of the profile to be stretched. Finally, the main straightening cylinder pulls the moving stretching head to move leftward through the main straightening rod, causing plastic deformation of the profile to be straightened and achieving the purpose of straightening.

[0004] Existing straightening and stretching equipment for aluminum profiles can only perform overall stretching and straightening on both ends of the aluminum profile. Therefore, for aluminum profiles with multiple bends, if the clamping force is insufficient, phenomena such as loss of force and unstable clamping may occur during the straightening and stretching process, easily causing the problem of the aluminum profile falling off. Therefore, in order to ensure that the aluminum profile does not fall off during straightening and stretching, existing stretching and straightening devices usually apply a large clamping force to the aluminum profile, causing deformation at both ends of the aluminum profile. During use, the deformed parts need to be cut, resulting in material waste. Summary of the Invention

[0005] The purpose of the present invention is to provide an aluminum profile straightening device, which has the advantages of simple structure, good straightening effect, high straightening efficiency, and low manual labor intensity.

[0006] The above technical purpose of the present invention is achieved through the following technical solutions:

[0007] An aluminum profile straightening device includes a frame. An installation frame for fixing a stretching and straightening mechanism is fixedly provided on the frame. The stretching and straightening mechanism includes a clamping mechanism one and a clamping mechanism two for clamping the aluminum profile, and a driving part for driving the clamping mechanism one and the clamping mechanism two to perform stretching and straightening on the aluminum profile. A horizontal sliding groove one is provided on the installation frame. Both the clamping mechanism one and the clamping mechanism two are slidably connected to the horizontal sliding groove one. The driving part includes a connecting rod one and a connecting rod two. The lower ends of the connecting rod one and the connecting rod two are respectively rotatably connected to the clamping mechanism one and the clamping mechanism two. The connecting rod one and the connecting rod two are both connected to a driving cylinder through a connecting block. The driving cylinder is slidably connected to a horizontal sliding groove two on the installation frame.

[0008] By adopting the above technical solution, the clamping mechanism I and the clamping mechanism II in the stretching and straightening mechanism stretch and straighten the aluminum profile under the drive of the driving part, so that the bent part of the aluminum profile produces plastic deformation along the stretching direction, thereby achieving the straightening effect. The driving part in the stretching and straightening mechanism drives the clamping mechanism I and the clamping mechanism II to move away from each other while clamping the aluminum profile through the first connecting rod and the second connecting rod, thereby realizing the stretching and straightening of the aluminum profile. Since the clamping mechanism I, the clamping mechanism II and the driving cylinder are respectively in sliding fit with the first horizontal sliding groove and the second horizontal sliding groove on the mounting bracket, the clamping mechanism I and the clamping mechanism II can be moved to the bending position according to the bending condition of the aluminum profile, thereby realizing the separate stretching and straightening of multiple sections of bending. Compared with straightening multiple sections of bending at one time, the clamping force requirements for the clamping mechanism I and the clamping mechanism II are greatly reduced, so the situation of unstable clamping caused by insufficient clamping force is effectively alleviated, and the stability of stretching and straightening is greatly improved.

[0009] The further setting of the present invention is that the clamping mechanism I and the clamping mechanism II have the same structure, and both include a driving disk and a clamping disk arranged coaxially. The lower ends of the first connecting rod and the second connecting rod are respectively rotatably connected to the driving disks in the clamping mechanism I and the clamping mechanism II. The clamping disk is slidably connected to the first horizontal sliding groove through a slider. A frustum extending axially is provided on one side of the clamping disk close to the driving disk. A connecting hole rotatably connected to the frustum is provided at the center of the driving disk. The clamping disk is rotatably connected to the connecting hole on the driving disk through the frustum. A feeding hole penetrating through the front and back is provided at the center of the axis of each clamping disk. A plurality of clamping holes are evenly provided on the inner wall of the feeding hole. A clamping part is provided in each clamping hole. One end of the clamping part far from the center of the feeding hole is connected to the driving disk through a driving shaft. An elastic cushion block is provided at one end of the clamping part close to the center of the feeding hole.

[0010] By adopting the above technical solution, the clamping parts in the multiple clamping holes on the inner wall of the feeding hole clamp the aluminum profile by extrusion. When both sides of the bent section of the aluminum profile are clamped, the driving cylinder moves downward, and at the same time drives the upper ends of the first connecting rod and the second connecting rod to move downward, so that the lower ends of the first connecting rod and the second connecting rod respectively drive the clamping mechanism I and the clamping mechanism II to move away from each other, so that the part of the aluminum profile between the clamping mechanism I and the clamping mechanism II is stretched and straightened. The clamping part extrudes the aluminum profile through the elastic cushion block, and the elastic cushion block can effectively reduce the situation of damage and deformation of the aluminum profile after being clamped, and greatly improves the surface quality of the straightened aluminum profile.

[0011] The further setting of the present invention is that an arc-shaped groove matching the number and position of the clamping holes is provided on one side of the driving disk close to the clamping disk. The distance from the starting point to the end point of the arc-shaped groove to the center of the driving disk gradually increases or gradually decreases. The driving shaft connected to the clamping part in each clamping hole is slidably connected to the arc-shaped groove opposite to it through a sliding pin.

[0012] By adopting the above technical solution, when the driving disk rotates, the sliding pin connected to the driving shaft is extruded through the arc-shaped groove, so that the sliding pin moves towards or away from the center of the driving disk. When the sliding pin moves towards the center of the driving disk, it drives the driving shaft to move towards the side close to the center of the driving disk. Since the driving disk and the clamping disk are coaxial, when the driving shaft moves towards or away from the side close to the center of the driving disk, the clamping part connected to the driving shaft in the clamping disk will move towards or away from the center of the clamping disk. When the clamping part moves towards or away from the center of the clamping disk, it can clamp or loosen the aluminum profile. In the whole process, only by rotating the driving disk can it be realized. It is not only simple in structure but also convenient to operate.

[0013] The further setting of the present invention is that: the clamping part includes a cylindrical cavity that is slidably matched with the clamping hole, the elastic cushion block is fixed at one end of the cylindrical cavity close to the center of the driving disk, an opening one is provided at the end of the cylindrical cavity far from the center of the driving disk, a piston coaxial with the cylindrical cavity is arranged in the inner cavity of the cylindrical cavity, the side of the piston far from the center of the driving disk is fixedly connected to the driving shaft, and one end of the driving shaft outside the cylindrical cavity is slidably connected to the arc-shaped groove through a sliding pin.

[0014] By adopting the above technical solution, when the clamping part connected to the driving shaft in the clamping disk moves towards the side close to the center of the clamping disk, the driving shaft directly applies force to the piston, and drives the cylindrical cavity to press or loosen the aluminum profile by applying force to the piston through the driving shaft.

[0015] The further setting of the present invention is that: an opening two is provided at one end of the cylindrical cavity close to the center of the driving disk, the elastic cushion block covers the edge of the opening and seals the opening, a notch is provided at the position of the elastic cushion block corresponding to the opening, a rack one is fixedly arranged on the outer wall of the driving shaft, a rack two is fixedly arranged at the position in the cylindrical cavity opposite to the rack one, and a gear meshing with the rack one and the rack two respectively is arranged between the rack one and the rack two.

[0016] By adopting the above technical solution, when the driving shaft moves axially towards or away from the center of the clamping disc, the rack one drives the gear to rotate. When the gear rotates, it drives the rack two to drive the cylindrical cavity to move in the opposite direction, so that the cylindrical cavity moves towards or away from the center of the clamping disc. At the same time, the driving shaft drives the piston to move towards or away from the center of the clamping disc. That is, when the driving shaft pushes the piston to move away from the center of the clamping disc, the cylindrical cavity moves towards the center of the clamping disc, thereby clamping the aluminum profile. At the same time, the piston moves towards the side away from the center of the clamping disc, so that the pressure in the space on the side of the cylindrical cavity close to the center of the clamping disc continuously decreases. As the cylindrical cavity continuously extrudes the aluminum profile, the elastic cushion block on the cylindrical cavity is flattened. During the continuous extrusion process of the elastic cushion block, the incision in the middle gradually opens, so that the opening two generates a suction force on the aluminum profile, so that under the same extrusion force, the aluminum profile is clamped tighter, further reducing the clamping force requirements for the clamping mechanism one and the clamping mechanism two, thereby further alleviating the situation of unstable clamping caused by insufficient clamping force. Therefore, the stability of stretch straightening is further improved; when the driving shaft pushes the piston to move towards the center of the clamping disc, the cylindrical cavity moves away from the center of the clamping disc, thereby loosening the aluminum profile. At the same time, the piston moves towards the side close to the center of the clamping disc, so that the pressure in the space on the side of the cylindrical cavity close to the center of the clamping disc continuously increases. As the cylindrical cavity continuously moves away from the aluminum profile, the elastic cushion block on the cylindrical cavity gradually returns to its initial state, the incision on the elastic cushion block gradually closes, and the suction force generated by the opening two on the aluminum profile gradually decreases until it disappears. Therefore, the aluminum profile can be quickly loosened, making the straightening efficiency higher.

[0017] The further setting of the present invention is: an annular toothed ring is provided on the circumference of the driving disc. Mounting plates one and two are respectively fixedly provided on the clamping discs of the clamping mechanism one and the clamping mechanism two. A gear one and a gear two meshing with the annular toothed ring are respectively provided on the mounting plates one and two. The gear one and the gear two are respectively connected to a driving motor one and a driving motor two fixed on the mounting plates one and two.

[0018] By adopting the above technical solution, the driving motor one and the driving motor two respectively drive the driving discs in the clamping mechanism one and the clamping mechanism two to rotate through the gear one and the gear two, so that the clamping mechanism one and the clamping mechanism two simultaneously automatically clamp or loosen the aluminum profile without manual operation, and the automation degree is high.

[0019] The further setting of the present invention is: a plurality of stretch straightening mechanisms are included, and the centers of the stretch straightening mechanisms are located on the same horizontal line.

[0020] By adopting the above technical solution, according to the bending condition of the aluminum profile, multiple straightening mechanisms can perform stretching and straightening operations on multiple or one bending position on the aluminum profile separately or simultaneously, with good flexibility, strong versatility, and high straightening efficiency.

[0021] The further setting of the present invention is that: the driving part in the stretching and straightening mechanism includes two groups, and the two groups of driving parts are symmetrically arranged at the upper and lower ends of the clamping mechanism one and the clamping mechanism two. Straightening arms extending towards the center of the clamping mechanism one and the clamping mechanism two are provided on the connecting blocks in the two groups of driving parts. One end of the straightening arm is fixed on the connecting block, and an elastic straightening roller is fixedly provided at the other end of the straightening arm.

[0022] By adopting the above technical solution, when the clamping mechanism one and the clamping mechanism two perform a transverse stretching and straightening operation on the aluminum profile from both sides of the bending section of the aluminum profile under the drive of the driving cylinder, the connecting blocks in the two groups of driving parts both move towards the center of the clamping mechanism one and the clamping mechanism two at the same time, thereby respectively driving the straightening arms fixedly connected to the connecting blocks in the two groups of driving parts to move towards the aluminum profile. The bending part of the aluminum profile is longitudinally shaped through the straightening blocks on the straightening arms, so that the transverse stretching and straightening and the longitudinal shaping are carried out synchronously. This not only effectively improves the straightening efficiency of the aluminum profile, but also further reduces the clamping force requirement for the clamping mechanism one and the clamping mechanism two, thereby further alleviating the situation of unstable clamping caused by insufficient clamping force, and further improving the stability of the stretching and straightening.

[0023] The beneficial effects of the present invention are:

[0024] 1. In the present invention, the clamping mechanism one and the clamping mechanism two in the stretching and straightening mechanism perform stretching and straightening on the aluminum profile under the drive of the driving part, so that the bending part of the aluminum profile generates plastic deformation along the stretching direction, thereby achieving the straightening effect. The driving part in the stretching and straightening mechanism drives the clamping mechanism one and the clamping mechanism two to move towards the mutually separated sides while clamping the aluminum profile through the connecting rod one and the connecting rod two, thereby realizing stretching and straightening of the aluminum profile. Since the clamping mechanism one, the clamping mechanism two, and the driving cylinder are respectively slidably matched with the horizontal sliding groove one and the horizontal sliding groove two on the mounting rack, therefore, the clamping mechanism one and the clamping mechanism two can be moved to the bending position according to the bending condition of the aluminum profile, thereby realizing separate stretching and straightening of multiple sections of bending. Compared with straightening multiple sections of bending at one time, the clamping force requirement for the clamping mechanism one and the clamping mechanism two is greatly reduced. Therefore, the situation of unstable clamping caused by insufficient clamping force is effectively alleviated, and the stability of the stretching and straightening is greatly improved.

[0025] 2. In the present invention, the clamping portions in the multiple clamping holes on the inner wall of the feed holes of clamping mechanism 1 and clamping mechanism 2 clamp the aluminum profile by extruding the aluminum profile. After the two sides of the bent section of the aluminum profile are clamped, the driving cylinder moves downward, and at the same time, the upper ends of driving link 1 and link 2 move downward, causing the lower ends of driving link 1 and link 2 to drive clamping mechanism 1 and clamping mechanism 2 to move away from each other respectively, so that the part of the aluminum profile between clamping mechanism 1 and clamping mechanism 2 is stretched and straightened. The clamping portion extrudes the aluminum profile through the elastic cushion block, and the elastic cushion block can effectively reduce the damage and deformation of the aluminum profile after being clamped, greatly improving the surface quality of the straightened aluminum profile.

[0026] 3. When the driving shaft moves in the direction close to or away from the center of the clamping disc in the present invention, the driving gear 1 rotates the gear, and when the gear rotates, it drives the rack 2 to drive the cylindrical cavity to move in the reverse direction, so that the cylindrical cavity moves in the direction away from or close to the center of the clamping disc. At the same time, the driving shaft drives the piston to move in the direction close to or away from the center of the clamping disc, that is, when the driving shaft pushes the piston to move away from the center of the clamping disc, the cylindrical cavity moves in the direction close to the center of the clamping disc, thereby clamping the aluminum profile. At the same time, the piston moves to the side away from the center of the clamping disc, causing the pressure in the space on the side of the cylindrical cavity close to the center of the clamping disc to continuously decrease. As the cylindrical cavity continuously extrudes the aluminum profile, the elastic cushion block on the cylindrical cavity is flattened. During the continuous extrusion process of the elastic cushion block, the incision in the middle gradually opens, causing the opening 2 to generate a suction force on the aluminum profile, so that under the same extrusion force, the aluminum profile is clamped tighter, further reducing the clamping force requirement for clamping mechanism 1 and clamping mechanism 2, thereby further alleviating the situation of unstable clamping caused by insufficient clamping force. Therefore, the stability of stretch straightening is further improved; when the driving shaft pushes the piston to move in the direction close to the center of the clamping disc, the cylindrical cavity moves in the direction away from the center of the clamping disc, thereby loosening the aluminum profile. At the same time, the piston moves to the side close to the center of the clamping disc, causing the pressure in the space on the side of the cylindrical cavity close to the center of the clamping disc to continuously increase. As the cylindrical cavity continuously moves away from the aluminum profile, the elastic cushion block on the cylindrical cavity gradually returns to its initial state, the incision on the elastic cushion block gradually closes, and the suction force generated by the opening 2 on the aluminum profile gradually decreases until it disappears. Therefore, the aluminum profile can be quickly loosened, making the straightening efficiency higher.

[0027] 4. In the present invention, driving motor 1 and driving motor 2 drive the driving discs in clamping mechanism 1 and clamping mechanism 2 to rotate through gear 1 and gear 2 respectively, so that clamping mechanism 1 and clamping mechanism 2 simultaneously automatically clamp or loosen the aluminum profile without manual operation, and the degree of automation is high.

[0028] 5. In the present invention, there are multiple stretching and straightening mechanisms. According to the bending condition of the aluminum profile, multiple straightening mechanisms can perform stretching and straightening operations on multiple or one bending position on the aluminum profile separately or simultaneously, with good flexibility, strong versatility, and high straightening efficiency.

[0029] 6. When the clamping mechanism I and the clamping mechanism II perform horizontal stretching and straightening operations on the aluminum profile from both sides of the bending section of the aluminum profile under the drive of the driving cylinder, the connecting blocks in the two sets of driving parts both move simultaneously towards the direction close to the centers of the clamping mechanism I and the clamping mechanism II, thereby respectively driving the straightening arms fixedly connected to the connecting blocks in the two sets of driving parts to move towards the direction close to the aluminum profile. The bending part of the aluminum profile is longitudinally shaped by the straightening blocks on the straightening arms, enabling the horizontal stretching and straightening and the longitudinal shaping to be carried out simultaneously. This not only effectively improves the straightening efficiency of the aluminum profile but also further reduces the clamping force requirements for the clamping mechanism I and the clamping mechanism II, thereby further alleviating the situation of unstable clamping caused by insufficient clamping force, and further improving the stability of the stretching and straightening. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0031] Figure 1 It is the overall structural schematic diagram of an aluminum profile straightening device of the present invention.

[0032] Figure 2 is Figure 1 the partial enlarged schematic diagram of A in

[0033] Figure 3 It is the cross-sectional structural schematic diagram of the stretching and straightening mechanism in an aluminum profile straightening device of the present invention.

[0034] Figure 4 is Figure 3 the partial enlarged schematic diagram of B in

[0035] Figure 5 It is the installation cross-sectional schematic diagram of the driving disk and the clamping disk in the clamping mechanism I and the clamping mechanism II in an aluminum profile straightening device of the present invention.

[0036] Figure 6 It is the installation schematic diagram of the stretching and straightening mechanism and the mounting bracket in an aluminum profile straightening device of the present invention.

[0037] In the figure, 1 is a frame; 2 is a mounting bracket; 3 is a stretching and straightening mechanism; 4 is an aluminum profile; 5 is a clamping mechanism I; 6 is a clamping mechanism II; 7 is a driving part; 71 is a connecting rod I; 72 is a connecting rod II; 73 is a connecting block; 74 is a driving cylinder; 75 is a horizontal chute II; 8 is a horizontal chute I; 9 is a driving disc; 10 is a clamping disc; 11 is a slider; 12 is a frustum; 13 is a connecting hole; 14 is a feeding hole; 15 is an elastic cushion block; 16 is an arc-shaped groove; 17 is a clamping hole; 18 is a clamping part; 181 is a cylindrical cavity; 182 is a piston; 183 is an opening I; 184 is an opening II; 19 is a driving shaft; 20 is a sliding pin; 21 is a notch; 22 is a rack I; 23 is a rack II; 24 is a gear; 25 is an annular gear ring; 26 is a mounting plate I; 27 is a mounting plate II; 28 is a gear I; 29 is a gear II; 30 is a driving motor I; 31 is a driving motor II; 32 is a straightening arm; 33 is an elastic straightening roller; 34 is a limiting plate; 35 is a feeding cylinder. Detailed implementation mode

[0038] The technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0039] As Figures 1 to 6 shown, an aluminum profile straightening device includes a frame 1. A mounting bracket 2 for fixing a stretching and straightening mechanism 3 is fixedly provided on the frame 1. The stretching and straightening mechanism 3 includes a clamping mechanism I 5 and a clamping mechanism II 6 for clamping an aluminum profile 4, and a driving part 7 for driving the clamping mechanism I 5 and the clamping mechanism II 6 to stretch and straighten the aluminum profile 4. A horizontal chute I 8 is provided on the mounting bracket 2. The clamping mechanism I 5 and the clamping mechanism II 6 are both slidably connected to the horizontal chute I 8. The driving part 7 includes a connecting rod I 71 and a connecting rod II 72. The lower ends of the connecting rod I 71 and the connecting rod II 72 are respectively rotatably connected to the clamping mechanism I 5 and the clamping mechanism II 6. The upper parts of the connecting rod I 71 and the connecting rod II 72 are both connected to a driving cylinder 74 through a connecting block 73. The driving cylinder 74 is slidably connected to a horizontal chute II 75 on the mounting bracket 2.

[0040] Furthermore, the first clamping mechanism 5 and the second clamping mechanism 6 have the same structure, both including a driving disk 9 and a clamping disk 10 arranged coaxially. The lower ends of the first connecting rod 71 and the second connecting rod 72 are respectively rotatably connected to the driving disks 9 in the first clamping mechanism 5 and the second clamping mechanism 6. The clamping disk 10 is slidably connected to the first horizontal sliding groove 8 through a slider 11. One side of the clamping disk 10 close to the driving disk 9 is provided with a frustum 12 extending axially. The center of the driving disk 9 is provided with a connecting hole 13 rotatably connected to the frustum 12. The clamping disk 10 is rotatably connected to the connecting hole 13 on the driving disk 9 through the frustum 12. A feeding hole 14 penetrating through the front and back is provided at the axis center of the clamping disk 10. A plurality of clamping holes 17 are evenly arranged on the inner wall of the feeding hole 14. A clamping part 18 is arranged in each clamping hole 17. One end of the clamping part 18 far from the center of the feeding hole 14 is connected to the driving disk 9 through a driving shaft 19. One end of the clamping part 18 close to the center of the feeding hole 14 is provided with an elastic cushion block 15.

[0041] Furthermore, on the side of the driving disk 9 close to the clamping disk 10, an arc-shaped groove 16 matching the number and position of the clamping holes 17 is provided. The distance from the starting point to the ending point of the arc-shaped groove 16 to the center of the driving disk 9 gradually increases or gradually decreases. The driving shafts 19 connected to the clamping parts 18 in each clamping hole 17 are all slidably connected to the corresponding arc-shaped grooves 16 through sliding pins 20.

[0042] Furthermore, the clamping part 18 includes a cylindrical cavity 181 slidably matched with the clamping hole 17. The elastic cushion block 15 is fixed at one end of the cylindrical cavity 181 close to the center of the driving disk 9. An opening 183 is provided at one end of the cylindrical cavity 181 far from the center of the driving disk 9. A piston 182 coaxial with the cylindrical cavity 181 is arranged in the inner cavity of the cylindrical cavity 181. One side of the piston 182 far from the center of the driving disk 9 is fixedly connected to the driving shaft 19. One end of the driving shaft 19 located outside the cylindrical cavity 181 is slidably connected to the arc-shaped groove 16 through a sliding pin 20.

[0043] Furthermore, an opening 184 is provided at one end of the cylindrical cavity 181 close to the center of the driving disk 9. The elastic cushion block 15 covers the edge of the opening 184 and seals the opening 184. A notch 21 is provided at the position of the elastic cushion block 15 corresponding to the opening 184.

[0044] Furthermore, a first rack 22 is regularly arranged on the outer wall of the driving shaft 19. A second rack 23 is fixedly arranged at a position in the cylindrical cavity 181 opposite to the first rack 22. A gear 24 meshing with the first rack 22 and the second rack 23 respectively is arranged between the first rack 22 and the second rack 23.

[0045] Further, an annular gear ring 25 is provided on the circumference of the driving disk 9. Mounting plates 26 and 27 are respectively fixed on the clamping disks 10 of the first clamping mechanism 5 and the second clamping mechanism 6. A first gear 28 and a second gear 29 meshing with the annular gear ring 25 are respectively provided on the mounting plates 26 and 27. The first gear 28 and the second gear 29 are respectively connected to a first driving motor 30 and a second driving motor 31 fixed on the mounting plates 26 and 27.

[0046] Further, a plurality of stretching and straightening mechanisms 3 are provided, and the centers of the stretching and straightening mechanisms 3 are located on the same horizontal line.

[0047] Further, the driving part 7 in the stretching and straightening mechanism 3 includes two groups. The two groups of driving parts 7 are symmetrically arranged at the upper and lower ends of the first clamping mechanism 5 and the second clamping mechanism 6. Straightening arms 32 extending towards the centers of the first clamping mechanism 5 and the second clamping mechanism 6 are provided on the connecting blocks 73 of the two groups of driving parts 7. One end of the straightening arm 32 is fixed on the connecting block 73, and an elastic straightening roller 33 is fixedly provided at the other end of the straightening arm 32.

[0048] Working principle of the present invention: The aluminum profile 4 to be straightened is inserted from the feeding holes 14 of the clamping mechanism I 5 and the clamping mechanism II 6. According to the bending condition of the aluminum profile 4, the clamping mechanism I 5 and the clamping mechanism II 6 are moved to the bending position. The driving motor I 30 and the driving motor II 31 are started. The driving motor I 30 and the driving motor II 31 respectively drive the driving disks 9 in the clamping mechanism I 5 and the clamping mechanism II 6 to rotate through the gear I 28 and the gear II 29. When the driving disk 9 rotates, it squeezes the sliding pin 20 connected to the driving shaft 19 through the arc-shaped groove 16, so that the sliding pin 20 moves in the direction close to or away from the center of the driving disk 9. When the sliding pin 20 moves in the direction close to the center of the driving disk 9, it will drive the driving shaft 19 to move to the side close to the center of the driving disk 9. Since the driving disk 9 and the clamping disk 10 are coaxial, when the driving shaft 19 moves to the side close to or away from the center of the driving disk 9, the clamping part 18 connected to the driving shaft 19 in the clamping disk 10 will move to the side close to or away from the center of the clamping disk 10. When the clamping part 18 moves to the side close to or away from the center of the clamping disk 10, it can clamp or loosen the aluminum profile 4. When the aluminum profile 4 needs to be stretched and straightened, the aluminum profile 4 is clamped by the clamping mechanism I 5 and the clamping mechanism II 6. After the clamping mechanism I 5 and the clamping mechanism II 6 clamp the aluminum profile 4, the connecting rod I 71 and the connecting rod II 72 are driven by the driving cylinder 74 to push the clamping mechanism I 5 and the clamping mechanism II 6 to move to both sides of the bending section of the aluminum profile 4, so as to perform a transverse stretching and straightening operation on the aluminum profile 4. The connecting blocks 73 in the two driving parts 7 both move in the direction close to the centers of the clamping mechanism I 5 and the clamping mechanism II 6 at the same time, so as to drive the driving parts 32 fixedly connected to the connecting blocks 73 in the two driving parts 7 to move in the direction close to the aluminum profile 4 respectively. The straightening blocks on the driving parts 32 perform longitudinal shaping on the bending part of the aluminum profile 4, so that the transverse stretching and straightening and the longitudinal shaping are carried out synchronously, which not only effectively improves the straightening efficiency of the aluminum profile 4, but also further reduces the clamping force requirement for the clamping mechanism I 5 and the clamping mechanism II 6, thereby further alleviating the situation of unstable clamping caused by insufficient clamping force, and further improving the stability of the stretching and straightening.

Claims

1. An aluminum profile straightening device, comprising a frame (1), characterized in that: On the frame (1), a mounting bracket (2) for fixing the stretching and straightening mechanism (3) is fixedly provided. The stretching and straightening mechanism (3) includes a first clamping mechanism (5) and a second clamping mechanism (6) for clamping the aluminum profile (4), and a driving part (7) for driving the first clamping mechanism (5) and the second clamping mechanism (6) to stretch and straighten the aluminum profile (4). A first horizontal sliding groove (8) is provided on the mounting bracket (2). Both the first clamping mechanism (5) and the second clamping mechanism (6) are slidably connected to the first horizontal sliding groove (8). The driving part (7) includes a first connecting rod (71) and a second connecting rod (72). The lower ends of the first connecting rod (71) and the second connecting rod (72) are respectively rotatably connected to the first clamping mechanism (5) and the second clamping mechanism (6). The upper parts of the first connecting rod (71) and the second connecting rod (72) are both connected to a driving cylinder (74) through a connecting block (73). The driving cylinder (74) is slidably connected to a second horizontal sliding groove (75) on the mounting bracket (2). The first clamping mechanism (5) and the second clamping mechanism (6) have the same structure, and both include a driving disk (9) and a clamping disk (10) arranged coaxially. The lower ends of the first connecting rod (71) and the second connecting rod (72) are respectively rotatably connected to the driving disks (9) in the first clamping mechanism (5) and the second clamping mechanism (6). The clamping disk (10) is slidably connected to the first horizontal sliding groove (8) through a slider (11). A frustum (12) extending axially is provided on one side of the clamping disk (10) close to the driving disk (9). A connecting hole (13) for rotatably connecting with the frustum (12) is provided at the center of the driving disk (9). The clamping disk (10) is rotatably connected to the connecting hole (13) on the driving disk (9) through the frustum (12). A feeding hole (14) penetrating through from front to back is provided at the axis center of the clamping disk (10). A plurality of clamping holes (17) are evenly provided on the inner wall of the feeding hole (14). A clamping part (18) is provided in each clamping hole (17). One end of the clamping part (18) far from the center of the feeding hole (14) is connected to the driving disk (9) through a driving shaft (19). An elastic cushion block (15) is provided at one end of the clamping part (18) close to the center of the feeding hole (14).

2. The straightening device for aluminum profiles according to claim 1, wherein: An arc-shaped groove (16) matching the number and position of the clamping holes (17) is provided on one side of the driving disk (9) close to the clamping disk (10). The distance from the starting point to the ending point of the arc-shaped groove (16) to the center of the driving disk (9) gradually increases or gradually decreases. The driving shafts (19) connected to the clamping parts (18) in each clamping hole (17) are all slidably connected to the opposite arc-shaped grooves (16) through sliding pins (20).

3. An aluminum profile straightening device according to claim 2, characterized in that: The clamping part (18) includes a cylindrical cavity (181) that slidably cooperates with the clamping hole (17). The elastic cushion block (15) is fixed to one end of the cylindrical cavity (181) close to the center of the driving disc (9). An opening one (183) is provided at the end of the cylindrical cavity (181) far from the center of the driving disc (9). A piston (182) coaxial with the cylindrical cavity (181) is provided in the inner cavity of the cylindrical cavity (181). The side of the piston (182) far from the center of the driving disc (9) is fixedly connected to the driving shaft (19). One end of the driving shaft (19) located outside the cylindrical cavity (181) is slidably connected to the arc-shaped groove (16) through a sliding pin (20).

4. The aluminum profile straightening device according to claim 3, characterized in that: An opening two (184) is provided at one end of the cylindrical cavity (181) close to the center of the driving disc (9). The elastic cushion block (15) covers the edge of the opening two (184) and seals the opening two (184). A notch (21) is provided at the position of the elastic cushion block (15) corresponding to the opening two (184).

5. An aluminum profile straightening device according to claim 4, characterized in that: A rack one (22) is provided on the outer wall of the driving shaft (19) as specified. A rack two (23) is fixedly provided at a position in the cylindrical cavity (181) opposite to the rack one (22). A gear (24) that meshes with the rack one (22) and the rack two (23) respectively is provided between the rack one (22) and the rack two (23).

6. The straightening device for aluminum profiles according to claim 5, characterized in that: An annular tooth ring (25) is provided on the circumference of the driving disc (9). A mounting plate one (26) and a mounting plate two (27) are respectively fixedly provided on the clamping discs (10) of the clamping mechanism one (5) and the clamping mechanism two (6). A gear one (28) and a gear two (29) that mesh with the annular tooth ring (25) are respectively provided on the mounting plate one (26) and the mounting plate two (27). The gear one (28) and the gear two (29) are respectively connected to a driving motor one (30) and a driving motor two (31) fixed on the mounting plate one (26) and the mounting plate two (27).

7. An aluminum profile straightening device according to claim 6, characterized in that: The stretching and straightening mechanism (3) includes a plurality of them, and the centers of the stretching and straightening mechanisms (3) are located on the same horizontal line.

8. An aluminum profile straightening device according to claim 7, characterized in that: The driving part (7) in the stretching and straightening mechanism (3) includes two groups, and the two groups of driving parts (7) are symmetrically arranged at the upper and lower ends of the clamping mechanism one (5) and the clamping mechanism two (6). Straightening arms (32) extending towards the centers of the clamping mechanism one (5) and the clamping mechanism two (6) are provided on the connecting blocks (73) in the two groups of driving parts (7). One end of the straightening arm (32) is fixed to the connecting block (73), and an elastic straightening roller (33) is fixedly provided at the other end of the straightening arm (32).

Images