A straightening device for an aluminium alloy profile

Abstract

The present application relates to a kind of straightening equipment of aluminum alloy profile, to solve the technical problem of current straightening equipment straightening aluminum alloy profile pipeline single kind, including support frame, lifting frame, straightening roller shaft and adaptive straightening system.The present application is driven by adjusting the drive structure, so that two adjacent and symmetrically distributed bidirectional turnover structure overturns, causes two adjacent symmetric bidirectional turnover structure contact to form hourglass state and spindle cylinder state;Make the gap between the bidirectional turnover structure of hourglass state and the "hourglass" straightening roller shaft form rectangular conveying straightening channel to adapt to the need of straightening operation of aluminum alloy profile of square tube shape;The gap between the bidirectional turnover structure of spindle cylinder state and the "hourglass" straightening roller shaft forms right-angle conveying straightening channel to adapt to the need of straightening operation of aluminum alloy profile of right angle;Improve the practicability and functionality of the device, meet the need of diversified aluminum alloy profile straightening operation.

Description

A straightening device for aluminum alloy profiles Technical Field

[0001] This invention relates to the field of aluminum alloy profile straightening technology, and more particularly to a straightening device for aluminum alloy profiles. Background Technology

[0002] Aluminum alloys are alloys based on aluminum with the addition of certain amounts of other alloying elements; they are a type of lightweight metal material. In addition to the general properties of aluminum, aluminum alloys also possess specific alloying characteristics due to variations in the types and amounts of alloying elements added. Aluminum alloy profiles refer to mechanical objects or device components made from aluminum alloys.

[0003] Aluminum alloy profiles come in a variety of shapes; among them, common aluminum alloy profiles are aluminum alloy frame accessories used as device frames; specifically, there are right-angled aluminum alloy profiles, round tube aluminum alloy profiles, square tube aluminum alloy profiles, cuboid aluminum alloy profiles, arc aluminum alloy profiles, and irregular aluminum alloy profiles, etc.

[0004] Existing aluminum alloy profiles are prone to bending during transportation, use, and external impacts after forming. Straightening equipment is often used to straighten these profiles. Current straightening methods typically involve applying force in the opposite direction of bending using a fixed-shape mold. However, existing straightening devices can only straighten profiles of a single shape, resulting in limited functionality and a limited range of straightened profiles. Therefore, it is crucial to develop a straightening device that can adapt to various aluminum alloy profiles forming pipes. In this regard, we propose a straightening device for aluminum alloy profiles. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art, adapt to practical needs, and provide a straightening device for aluminum alloy profiles to solve the technical problem of the limited variety of aluminum alloy profile pipes that can be straightened by current straightening devices.

[0006] To achieve the objectives of this invention, the technical solution adopted is as follows: A straightening device for aluminum alloy profiles is designed, comprising a support frame, lifting frames, straightening rollers, and an adaptive straightening system; two sets of lifting frames are symmetrically arranged inside the support frame, and the gap between the opposing surfaces of the two sets of lifting frames forms a fixed rolling cavity; several straightening rollers are movably arranged within the fixed rolling cavity, and the straightening rollers are hourglass-shaped; two adaptive straightening systems are symmetrically arranged at the high end of the support frame; each adaptive straightening system includes an adjusting frame assembly, a conveying drive structure, an adjusting drive structure, and a bidirectional flipping structure; two adjusting frame assemblies are arranged at the high end of the support frame; two conveying drive structures are respectively arranged on both sides of the adjusting frame assembly. The adjustment drive structure is arranged on the adjustment frame assembly, and is connected to the conveying drive structure via a transmission belt. A plurality of bidirectional flipping structures are arranged linearly and equally spaced at the output end of the adjustment drive structure, wherein two adjacent and symmetrically distributed bidirectional flipping structures constitute a dual-mode straightening structure. The dual-mode straightening structure has an hourglass state and a spindle-cylinder state. In the hourglass state of the dual-mode straightening structure, the straightening roller is adjusted by a lifting frame, causing the straightening roller and the dual-mode straightening structure to form a rectangular straightening structure. In the spindle-cylinder state of the dual-mode straightening structure, the straightening roller is adjusted by a lifting frame, causing the straightening roller and the dual-mode straightening structure to form a right-angle straightening structure.

[0007] Preferably, the adjusting frame assembly includes a mounting frame, an extension frame, and a keyed limiting shaft cone; two mounting frames are symmetrically arranged at the high end of the support frame; the extension frame is arranged on the side of the mounting frame away from the straightening roller shaft via a connecting shaft; a plurality of keyed limiting shaft cones are arranged linearly and equally spaced on the extension frame, wherein the keyed limiting shaft cones are closer to the bidirectional flipping structure at the smaller end; and the cross-section of the keyed limiting shaft cone is a regular polygon.

[0008] Preferably, the conveying drive structure includes a mounting base A, a servo motor, and a belt-engaging toothed disc; the two mounting bases A are arranged on both sides of the mounting frame by bolts A; and the mounting base A has an "open" structure; the servo motor is arranged on one side of the mounting base A; the belt-engaging toothed disc is arranged at the output end of the servo motor; wherein, the two belt-engaging toothed discs are connected to the adjustment drive structure by a transmission belt.

[0009] Preferably, the adjustment drive structure includes a batch linkage plate, an electric cylinder, assembly blocks, a multi-directional drive rod, a key shaft limiting tube, a spline sleeve, and a mounting base C; the batch linkage plate is arranged between the mounting frame and the extension frame, wherein the surface of the batch linkage plate has a plurality of connecting holes linearly and equally spaced; at least one electric cylinder is arranged at the end of the mounting frame via a mounting base B, wherein the batch linkage plate is mounted to the telescopic end of the electric cylinder; a plurality of assembly blocks are arranged on the batch linkage plate via bolts B; and the... The assembly block and the connecting hole are located at the same center; the multi-directional drive rod is arranged on the assembly block through bearing A; the key shaft limiting tube is movably sleeved on the outer wall of the multi-directional drive rod; the spline sleeve is slidably sleeved on the outer wall of the key shaft limiting tube; wherein, the outer surface of the spline sleeve is provided with friction contact protrusions that are connected to the transmission belt in an annular pattern at equal intervals; and, the inner wall of the spline sleeve is provided with at least one keyed protrusion; the mounting base C is movably arranged on the outer wall of the spline sleeve and connected to the mounting bracket through bearing B.

[0010] Preferably, the multi-directional drive rod has a limiting groove at one end relative to the bidirectional flip structure, and the limiting groove is composed of at least two combined grooves connected end to end; the combined groove is composed of a linear straight groove and a spiral groove, and the connection between the linear straight groove and the spiral groove is in the shape of a "step"; wherein, the other end of the multi-directional drive rod has a positioning slot that engages with the keyed limiting shaft cone.

[0011] Preferably, the key shaft limiting tube has a linear limiting groove on its surface that slides with the key protrusion; and the end of the key shaft limiting tube has an extension; wherein the extension is rotatably connected to the bidirectional flipping structure via a bearing D; and wherein at least one limiting block is provided on the side of the key shaft limiting tube that is closer to the extension.

[0012] Preferably, the bidirectional flipping structure includes a straightening roller block, bevel gears, a cross tube frame, a toothed bevel gear shaft disc, and filler blocks; the straightening roller block is rotatably arranged at the end of the extension; wherein the straightening roller block is rotatably connected to the extension via bearing C; wherein the gap at the middle of the interior of the straightening roller block forms a flipping adjustment cavity; wherein a drive groove communicating with the flipping adjustment cavity is formed at the middle of the outer surface of the straightening roller block; and support grooves are formed on both sides of the outer surface of the straightening roller block opposite to the drive groove; two bevel gears are fixedly arranged at the upper and lower ends inside the flipping adjustment cavity; the cross tube frame is arranged in the flipping adjustment cavity and connected to the bevel gears via bearing F; and the bevel gears are rotatably connected to the cross tube frame via bearing F; the toothed bevel gear shaft disc is rotatably connected to the cross tube frame via bearing E; and the toothed bevel gear shaft disc is interlocked with the two bevel gears respectively; three filler blocks are arranged in the drive groove and support groove via bolts C.

[0013] Preferably, the inner wall of the toothless bevel gear shaft disk is provided with an elastic limiting cavity relative to the path of the limiting inner groove; wherein, an elastic block is provided inside the elastic limiting cavity, and the elastic block is elastically connected to the toothless bevel gear shaft disk by a spring.

[0014] A method for using a straightening device for aluminum alloy profiles includes the following steps:

[0015] S100: Pre-treatment: First, multiple straightening rollers are driven to descend by a lifting frame to reserve operating space for the bidirectional flipping structure; then, the filler block is removed by rotating bolt C with a tool.

[0016] S200: Locking process: Based on external control, the output end of the servo motor is kept in a stable and non-rotating state, and the spline sleeve is simultaneously limited by frictional contact between the inner wall of the transmission belt and the frictional contact protrusion.

[0017] S300: Adjustment Processing

[0018] If a right-angled aluminum alloy profile is to be straightened:

[0019] First, the electric cylinder stroke drives the batch linkage plate, several assembly blocks, and multi-directional drive rods to move and engage with the keyed limiting cone to limit the rotatable connection of the multi-directional drive rods. Due to the size limitations of the fit and bi-directional flipping structure, the limiting groove drives the elastic block and the key shaft limiting tube to slide, leaving the required flipping space. When the limiting block at the end of the key shaft limiting tube contacts and limits the spline sleeve, preventing the key shaft limiting tube from sliding, the electric cylinder stroke causes the batch linkage plate to continuously move, driving multiple assembly blocks and multi-directional drive rods, thus limiting the rotatable connection of the multi-directional drive rods. The moving rod maintains linear sliding movement and cannot rotate. When the multi-directional drive rod slides, the key shaft limiting tube cannot move. Based on the reserved flipping space, the multi-directional drive rod moves linearly, and the spiral groove causes the elastic block to rotate. This causes the key shaft limiting tube to rotate, which in turn drives the toothed bevel gear shaft disk to rotate 180 degrees. The toothed bevel gear shaft disk synchronously drives one of the bevel gears to rotate in a relatively positive direction, causing the straightening roller block to rotate as a whole. This forces the large ends of two adjacent and symmetrically distributed straightening roller blocks to move closer together. After the toothed bevel gear shaft disk rotates 180 degrees, the elastic block is located in the linear groove.

[0020] If straightening is required for the tubular aluminum alloy profile:

[0021] First, the electric cylinder stroke drives the batch linkage plate, several assembly blocks, and multi-directional drive rods to move and engage with the keyed limiting cone to limit the rotatable connection of the multi-directional drive rods. Due to the size limitations of the fit and bi-directional flipping structure, the limiting groove drives the elastic block and the key shaft limiting tube to slide, leaving the required flipping space. When the limiting block at the end of the key shaft limiting tube contacts and limits the spline sleeve, preventing the key shaft limiting tube from sliding, the electric cylinder stroke causes the batch linkage plate to continuously move, driving multiple assembly blocks and multi-directional drive rods, thus limiting the rotatable connection of the multi-directional drive rods. The moving rod maintains linear sliding movement and cannot rotate. When the multi-directional drive rod slides, the key shaft limiting tube cannot move. Based on the reserved flipping space, the multi-directional drive rod moves linearly, and the spiral groove causes the elastic block to rotate. This causes the key shaft limiting tube to rotate, which in turn drives the toothed bevel gear shaft disk to rotate 180 degrees. The toothed bevel gear shaft disk simultaneously drives another bevel gear to rotate in the opposite direction, causing the straightening roller block to rotate as a whole. This forces the small ends of two adjacent and symmetrically distributed straightening roller blocks to move closer together. After the toothed bevel gear shaft disk rotates 180 degrees, the elastic block is located in the linear groove.

[0022] S400: Bonding process: The batch linkage plate and several assembly blocks and multi-directional drive rods are moved by the return working of the electric cylinder. At this time, the elastic block is located in the linear straight groove and slides from one end away from the toothed bevel shaft disk to the other end close to the toothed bevel shaft disk. Then, at the connection between the linear straight groove and the spiral groove, the key shaft limiting tube is moved as a whole, so that the two straightening roller blocks come into contact and bond. Then, the filler block is installed by rotating the bolt C with a tool.

[0023] S500: Size adjustment process: Multiple straightening roller shafts are driven to lift and lower via a lifting frame, thereby adjusting the gap between the two straightening roller blocks and the straightening roller shafts;

[0024] S600: Straightening treatment:

[0025] The aluminum alloy profile to be straightened is placed manually or by machine in the gap between two straightening rollers and the straightening roller shaft. The servo motor drives the belt meshing gear plate to drive the transmission belt, which makes multiple spline sleeves rotate synchronously. This drives the multi-directional drive rod, key shaft limit tube and straightening rollers to rotate, so that the aluminum alloy profile is straightened in the gap between the straightening rollers and the straightening roller shaft.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0027] 1. This invention, based on the adjustment of the drive structure and in conjunction with the conveying drive structure, enables the aluminum alloy profile straightening equipment to maintain the basic straightening operation of rotary extrusion conveying while simultaneously adjusting the drive structure to cause two adjacent and symmetrically distributed bidirectional flipping structures to flip and adjust, resulting in the two adjacent and symmetrically distributed bidirectional flipping structures contacting each other to form an hourglass state and a spindle cylinder state. In conjunction with the lifting frame to synchronously control the height of the straightening roller shaft, the gap between the hourglass-shaped bidirectional flipping structure and the hourglass-shaped straightening roller shaft forms a rectangular conveying and straightening channel suitable for the straightening operation of tubular aluminum alloy profiles; and the gap between the spindle cylinder-shaped bidirectional flipping structure and the hourglass-shaped straightening roller shaft forms a right-angle conveying and straightening channel suitable for the straightening operation of right-angled aluminum alloy profiles. Through the above operations, the aluminum alloy profile straightening equipment can simultaneously adapt to the straightening requirements of two different aluminum alloy profiles, improving the practicality and functionality of the device and meeting the diverse needs of aluminum alloy profile straightening operations.

[0028] 2. The present invention uses a keyed limiting shaft cone arranged in a regular polygonal shape, which allows the keyed limiting shaft cone to be plugged into and connected to the adjustment drive structure. The shape of the keyed limiting shaft cone can be used to limit the rotation of the adjustment drive structure, thereby realizing the adjustment required for the rotation and bidirectional flipping structure flipping adjustment function of the drive adjustment structure, avoiding motion interference and incompatibility of motion adjustment.

[0029] 3. The present invention is based on the sliding connection between the key shaft limiting tube and the spline sleeve, with the key protrusion limiting the key shaft limiting tube, so that while the spline sleeve maintains synchronous rotation with the key shaft limiting tube, the key shaft limiting tube can slide to adapt to the adjustment and control required for the bidirectional flip structure.

[0030] 4. The present invention uses a spiral groove to adjust the position of the meshing end of the bidirectional flip structure relative to the axial center of the multi-directional drive rod by extending and retracting the spiral groove, thereby providing driving force for the rotation of the bidirectional flip structure. The overall operation is convenient and the linkage is convenient. Furthermore, the linear straight groove and the spiral groove are connected in a "stepped" shape, so that the bidirectional flip structure can only perform unidirectional rotation adjustment, reducing the possibility of misalignment caused by forward and reverse rotation.

[0031] 5. This invention uses two adjacent and symmetrically distributed bidirectional flipping structures that fit together. Based on the size limitations of the fit and bidirectional flipping structures, and the insertion and engagement of the multi-directional drive rod with the keyed limiting shaft cone, the movable rotation of the multi-directional drive rod is limited. This prevents the bidirectional flipping structure from rotating or from rotating fully in relative space, allowing the multi-directional drive rod to synchronously drive the key shaft limiting tube to slide. This arrangement allows the two relatively distributed bidirectional flipping structures to move away from each other, leaving the space required for flipping. At this time, the limiting block at the end of the key shaft limiting tube contacts and limits the spline sleeve, preventing the key shaft limiting tube from sliding. During the electric cylinder stroke, the batch linkage plate drives multiple assembly blocks and the multi-directional drive rod to move continuously, causing the multi-directional drive rod to maintain linear sliding movement and prevent rotation. The sliding movement of the multi-directional drive rod causes the spiral groove to compress and drive the power input end of the bidirectional flipping structure to flip 180 degrees, enabling the bidirectional flipping structure to perform the required adjustment operations for different aluminum alloy profiles.

[0032] 6. This invention uses a toothed bevel gear shaft disc with two bevel gears symmetrically arranged vertically. Connected by a cross-shaped frame, the toothed bevel gear shaft disc rotates 180 degrees based on the power input of the adjustment drive structure. This drives one of the bevel gears, causing the entire straightening roller to rotate 180 degrees. Then, through the next sliding movement, the toothed bevel gear shaft disc drives the other bevel gear, creating a counter-rotating adjustment. This allows the straightening roller to only require reciprocating 180-degree rotation adjustments, reducing the need for slotting in the straightening roller and maintaining good overall strength.

[0033] 7. The present invention applies elastic force to the elastic block by means of a spring, causing the elastic block to slide and fit within the linear straight groove and the spiral groove, so as to meet the required fit tightness for the unidirectional movement of the toothed bevel gear shaft disk. Attached Figure Description

[0034] Figure 1 is a schematic diagram of the overall three-dimensional structure of the present invention;

[0035] Figure 2 is a schematic diagram of the three-dimensional structure of the adaptive straightening system and the adjustment frame assembly in this invention.

[0036] Figure 3 is a partial enlarged structural diagram of point A in Figure 2 of the present invention;

[0037] Figure 4 is a three-dimensional structural diagram of the adjustment drive structure in this invention;

[0038] Figure 5 is a schematic diagram of the split structure of the adjustment drive structure in this invention;

[0039] Figure 6 is a partial enlarged structural diagram of point B in Figure 5 of the present invention;

[0040] Figure 7 is a schematic diagram of the front cross-sectional structure of the bidirectional flipping structure in this invention;

[0041] Figure 8 is a partially enlarged structural diagram of point C in Figure 7 of the present invention;

[0042] Figure 9 is a schematic diagram of the stepped operation structure at the connection between the linear straight groove and the spiral groove in this invention.

[0043] Figure 10 is a schematic diagram of the right-angle straightening structure of the spindle in the cylindrical state of the present invention;

[0044] Figure 11 is a schematic diagram of rectangular straightening in the hourglass state according to the present invention;

[0045] Figure 12 is a schematic diagram of the straightening roller block structure of the present invention, showing the two straightening roller blocks in a relatively close running state.

[0046] In the diagram: 1. Support frame; 2. Lifting frame; 3. Straightening roller; 4. Adaptive straightening system; 5. Adjusting frame assembly; 6. Conveying drive structure; 7. Adjusting drive structure; 8. Bidirectional tilting structure; 9. Drive belt;

[0047] 501. Mounting frame; 502. Extension frame; 503. Keyed limiting shaft cone;

[0048] 601. Mounting base A; 602. Servo motor; 603. Belt-engaged gear plate;

[0049] 701. Batch linkage plate; 702. Electric cylinder; 703. Assembly block; 704. Multi-directional drive rod; 7041. Limiting groove; 7042. Linear straight groove; 7043. Spiral groove; 7044. Positioning slot; 705. Key shaft limiting tube; 7051. Linear limited slip groove; 7052. Extension; 7053. Limiting block; 706. Spline sleeve; 7061. Friction contact protrusion; 7062. Key joint protrusion;

[0050] 7062, Keyed protrusion; 707, Mounting base C;

[0051] 801. Straightening roller block; 802. Bevel gear; 803. Cross tube frame; 804. Toothless bevel gear shaft disc; 8041. Elastic block; 805. Filler block;

[0052] a-helical groove, b-helical groove. Detailed Implementation

[0053] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0054] Example 1: A straightening device for aluminum alloy profiles, as shown in Figures 1 to 12, includes a support frame 1, lifting frames 2, straightening rollers 3, and an adaptive straightening system 4; two sets of lifting frames 2 are symmetrically arranged inside the support frame 1, and the gap between the opposing surfaces of the two sets of lifting frames 2 forms a fixed rolling cavity; several straightening rollers 3 are movably arranged in the fixed rolling cavity, and the straightening rollers 3 are hourglass-shaped; two adaptive straightening systems 4 are symmetrically arranged at the high end of the support frame 1; the adaptive straightening system 4 includes an adjusting frame assembly 5, a conveying drive structure 6, an adjusting drive structure 7, and a bidirectional flipping structure 8; two adjusting frame assemblies 5 are arranged at the high end of the support frame 1; two conveying drive structures 6 are respectively arranged on both sides of the adjusting frame assembly 5. The adjustment drive structure 7 is arranged on the adjustment frame assembly 5, wherein the adjustment drive structure 7 is connected to the conveying drive structure 6 via the transmission belt 9; several bidirectional flipping structures 8 are arranged linearly and equally spaced at the output end of the adjustment drive structure 7, wherein two adjacent and symmetrically distributed bidirectional flipping structures 8 constitute a dual-mode straightening structure; wherein the dual-mode straightening structure has an hourglass state and a spindle cylinder state; in the hourglass state of the dual-mode straightening structure, the straightening roller 3 is adjusted by lifting frame 2, so that the straightening roller 3 and the dual-mode straightening structure constitute a rectangular straightening structure; in the spindle cylinder state of the dual-mode straightening structure, the straightening roller 3 is adjusted by lifting frame 2, so that the straightening roller 3 and the dual-mode straightening structure constitute a right-angle straightening structure. This invention is based on the adjustment drive structure 7, which, in conjunction with the conveying drive structure 6, enables the straightening equipment for the aluminum alloy profile to maintain the basic straightening operation of rotary extrusion conveying. Simultaneously, by adjusting the drive structure 7, two adjacent and symmetrically distributed bidirectional flipping structures 8 are flipped, causing them to contact and form an hourglass and a spindle-cylinder state. The lifting frame 2 synchronously controls the height of the straightening roller 3, as shown in Figures 10-11, resulting in the hourglass state of the bidirectional flipping structures 8. A rectangular conveying and straightening channel is formed between the straightening roller 3 and the hourglass-shaped straightening roller 3 to meet the straightening requirements of tubular aluminum alloy profiles; and a right-angle conveying and straightening channel is formed between the bidirectional flipping structure 8 in the spindle cylindrical state and the hourglass-shaped straightening roller 3 to meet the straightening requirements of right-angled aluminum alloy profiles. Through the above operations, the straightening equipment for aluminum alloy profiles can simultaneously adapt to the straightening requirements of two different aluminum alloy profiles, improving the practicality and functionality of the device and meeting the diverse straightening requirements of aluminum alloy profiles.

[0055] Specifically, the adjusting frame assembly 5 includes a mounting frame 501, an extension frame 502, and keyed limiting shaft cones 503. Two mounting frames 501 are symmetrically arranged at the high end of the support frame 1. The extension frame 502 is arranged on the side of the mounting frame 501 away from the straightening roller shaft 3 via a connecting shaft. Several keyed limiting shaft cones 503 are linearly and equally spaced on the extension frame 502, wherein the keyed limiting shaft cones 503 are closer to the bidirectional flipping structure 8 at their smaller ends; and the cross-section of the keyed limiting shaft cones 503 is a regular polygon. This invention, through the regular polygonal keyed limiting shaft cones 503, allows the keyed limiting shaft cones 503 to be plugged into the adjusting drive structure 7. The shape of the keyed limiting shaft cones 503 can be used to movably limit the rotation of the adjusting drive structure 7, thereby achieving the necessary adjustment for the rotation of the driving adjustment structure 7 and the flipping adjustment function of the bidirectional flipping structure 8, avoiding motion interference and incompatibility in motion adjustment.

[0056] Furthermore, the conveying drive structure 6 includes a mounting base A601, a servo motor 602, and a belt-engaging toothed disc 603; two mounting bases A601 are arranged on both sides of the mounting frame 501 by bolts A; and the mounting bases A601 have an "open" structure; the servo motor 602 is arranged on one side of the mounting base A601; the belt-engaging toothed disc 603 is arranged at the output end of the servo motor 602; wherein, the two belt-engaging toothed discs 603 are connected to the adjustment drive structure 7 by transmission belt 9. This invention uses the rotation of the servo motor 602 to drive the belt-engaging toothed disc 603 to drive the transmission belt 9, so that multiple adjustment drive structures 7 can rotate synchronously for conveying and adjustment.

[0057] Furthermore, the adjustment drive structure 7 includes a batch linkage plate 701, an electric cylinder 702, an assembly block 703, a multi-directional drive rod 704, a key shaft limiting tube 705, a spline sleeve 706, and a mounting base C707. The batch linkage plate 701 is arranged between the mounting frame 501 and the extension frame 502, wherein the surface of the batch linkage plate 701 has a plurality of connecting holes linearly and equally spaced. At least one electric cylinder 702 is arranged at the end of the mounting frame 501 through the mounting base B, wherein the batch linkage plate 701 is installed and connected to the telescopic end of the electric cylinder 702. A plurality of assembly blocks 703 are arranged on the batch linkage plate by bolts B. On 701; and, the assembly block 703 and the connecting hole are located at the same center; the multi-directional drive rod 704 is arranged on the assembly block 703 through bearing A; the key shaft limiting tube 705 is movably sleeved on the outer wall of the multi-directional drive rod 704; the spline sleeve 706 is slidably sleeved on the outer wall of the key shaft limiting tube 705; wherein, the outer surface of the spline sleeve 706 is provided with friction contact protrusions 7061 that are connected to the transmission belt 9 in an annular pattern at equal intervals; and, the inner wall of the spline sleeve 706 is provided with at least one keyed protrusion 7062; the mounting seat C707 is movably arranged on the outer wall of the spline sleeve 706 through bearing B and connected to the mounting bracket 501. The present invention is based on the sliding connection between the key shaft limiting tube 705 and the spline sleeve 706, and the key protrusion 7062 limits the key shaft limiting tube 705. This allows the key shaft limiting tube 705 to slide while the spline sleeve 706 maintains synchronous rotation with the key shaft limiting tube 705, so as to adapt to the adjustment and control required by the bidirectional flip structure 8.

[0058] It is worth noting that the multi-directional drive rod 704 has a limiting groove 7041 at one end near the bidirectional flip structure 8, and the limiting groove 7041 is composed of at least two combined grooves connected end to end; the combined groove is composed of a linear straight groove 7042 and a spiral groove 7043, and the connection between the linear straight groove 7042 and the spiral groove 7043 is in a "stepped" shape; the other end of the multi-directional drive rod 704 has a positioning slot 7044 that engages with the keyed limiting shaft cone 503. The invention utilizes the spiral groove 7043 to adjust the axial center position of the meshing end of the bidirectional flip structure 8 relative to the multi-directional drive rod 704 during telescopic movement, thereby providing driving force for the rotation of the bidirectional flip structure 8, and the overall operation is convenient; and by utilizing the "stepped" connection between the linear straight groove 7042 and the spiral groove 7043, the bidirectional flip structure 8 only performs unidirectional rotation adjustment, reducing the possibility of misalignment caused by forward or reverse rotation.

[0059] It is worth noting that the key shaft limiting tube 705 has a linear limiting groove 7051 on its surface that slides with the key protrusion 7062; and the end of the key shaft limiting tube 705 has an extension 7052; wherein the extension 7052 is rotatably connected to the bidirectional flip structure 8 through a bearing D; wherein at least one limiting block 7053 is provided on the side of the key shaft limiting tube 705 that is closer to the extension 7052. The present invention uses two adjacent and symmetrically distributed bidirectional flip structures 8 to fit together. Based on the fit and the size limitation of the bidirectional flip structure 8, and the insertion fit between the multi-directional drive rod 704 and the key limiting shaft cone 503, the movable rotation of the multi-directional drive rod 704 is limited, so that the bidirectional flip structure 8 cannot rotate or cannot rotate fully in relative space. This allows the multi-directional drive rod 704 to synchronously drive the key shaft limiting tube 705 to slide. This setting allows the two relatively distributed bidirectional flip structures 8 to move away to leave the space required for flipping. At this time, the key shaft limiting tube 705... The limiting block 7053 at the end of the 5th end contacts and limits the spline sleeve 706, preventing the key shaft limiting tube 705 from sliding. During the stroke of the electric cylinder 702, the batch linkage plate 701 drives multiple assembly blocks 703 and multi-directional drive rods 704 to move continuously, causing the multi-directional drive rods 704 to maintain linear sliding movement and not rotate. By using the sliding movement of the multi-directional drive rods 704, the spiral groove 7043 extrudes and drives the power input end of the bidirectional flip structure 8 to flip 180 degrees; causing the bidirectional flip structure 8 to perform the required adjustment operation for different aluminum alloy profiles.

[0060] It is worth noting that the bidirectional flipping structure 8 includes a straightening roller block 801, bevel gears 802, a cross tube frame 803, a toothed bevel gear shaft disc 804, and a filling block 805. The straightening roller block 801 is rotatably arranged at the end of the extension 7052. The straightening roller block 801 is rotatably connected to the extension 7052 via a bearing C. The gap at the middle of the interior of the straightening roller block 801 forms a flipping adjustment cavity. A drive groove communicating with the flipping adjustment cavity is formed at the middle of the outer surface of the straightening roller block 801. Support grooves are formed on both sides of the outer surface of the straightening roller block 801 opposite to the drive groove. Two bevel gears 802 are fixedly arranged at the upper and lower ends inside the flipping adjustment cavity. The cross tube frame 803 is arranged in the flipping adjustment cavity via a bearing F and connects to the bevel gears 802. The bevel gears 802 are rotatably connected to the cross tube frame 803 via a bearing F. The toothed bevel gear shaft disc 804 is rotatably connected to the cross tube frame 803 via a bearing E. Furthermore, the toothless bevel gear shaft disk 804 is interlocked with two bevel gears 802. The rotation of the toothless bevel gear shaft disk 804 can drive the rotation of one of the bevel gears 802. When the toothless bevel gear shaft disk 804 rotates again, it disengages from the meshing state of one of the bevel gears 802 and meshes synchronously with the other bevel gear 802. As shown in Figure 12, the toothless bevel gear shaft disk 804 can drive the two bevel gears 802 within an angle of 180 degrees, with a slight error. Since both sides of the straightening roller block 801 are planes, when the two relatively distributed straightening roller blocks 801 approach each other, the two straightening roller blocks 801 receive a planar pushing force and planar correction, causing the two straightening roller blocks 801 to rotate and adjust so that the two relatively straightening roller blocks 801 can perform symmetrical adaptive angle adjustment. The three filling blocks 805 are arranged in the drive groove and support groove by bolts C. This invention utilizes a toothed bevel gear shaft disc 804, which works in conjunction with two bevel gears 802 symmetrically arranged vertically. Connected by a cross-shaped frame 803, the toothed bevel gear shaft disc 804 rotates 180 degrees based on the power input from the adjustment drive structure 7. This drives one of the bevel gears 802, causing the entire straightening roller block 801 to rotate 180 degrees. Then, through the next sliding movement, the toothed bevel gear shaft disc 804 drives the other bevel gear 802, creating a counter-rotating adjustment. This allows the straightening roller block 801 to only undergo a reciprocating 180-degree rotation adjustment, reducing the need for slotting in the straightening roller block 801 and maintaining its overall strength.

[0061] It is worth emphasizing that the inner wall of the toothless bevel gear shaft disk 804 is provided with an elastic limiting cavity relative to the path of the limiting inner groove 7041; wherein, an elastic block 8041 is provided inside the elastic limiting cavity, and the elastic block 8041 is elastically connected to the toothless bevel gear shaft disk 804 via a spring. This invention applies elastic force to the elastic block 8041 through the spring, causing the elastic block 8041 to slide and fit within the linear groove 7042 and the spiral groove 7043, thereby achieving the required tightness of fit for the unidirectional movement of the toothless bevel gear shaft disk 804.

[0062] Example 2: A method of using a straightening device for aluminum alloy profiles, comprising the following steps:

[0063] S100: Pre-processing: First, the lifting frame 2 drives multiple straightening rollers 3 to descend, reserving operating space for the bidirectional flipping structure 8 to flip; then, the filling block 805 is removed by rotating the bolt C with a tool.

[0064] S200: Locking process: Based on external control, the output end of the servo motor 602 is kept in a stable and non-rotating state, and the spline sleeve 706 is simultaneously limited by frictional contact between the inner wall of the transmission belt 9 and the frictional contact protrusion 7061.

[0065] S300: Adjustment Processing

[0066] If a right-angled aluminum alloy profile is to be straightened:

[0067] First, the electric cylinder 702's stroke drives the batch linkage plate 701, several assembly blocks 703, and multi-directional drive rods 704 to move and engage with the keyed limiting cone 503 to limit the rotatable connection of the multi-directional drive rods 704. At this time, due to the size limitations of the fitting and bi-directional flipping structure 8, the limiting groove 7041 drives the elastic block 8041 and the key shaft limiting tube 705 to slide, leaving the required flipping space. When the limiting block 7053 at the end of the key shaft limiting tube 705 contacts and limits the spline sleeve 706, preventing the key shaft limiting tube 705 from sliding, the electric cylinder 702's stroke causes the batch linkage plate 701 to continuously move, driving multiple assembly blocks 703 and multi-directional drive rods 704, resulting in... The multi-directional drive rod 704 maintains linear sliding movement and cannot rotate. When the multi-directional drive rod 704 slides, the key shaft limiting tube 705 cannot move. Based on the reserved flipping space, the multi-directional drive rod 704 moves linearly, which, together with the spiral groove 7043, causes the elastic block 8041 to rotate. This causes the key shaft limiting tube 705 to rotate, driving the toothed bevel gear shaft disk 804 to rotate 180 degrees. The toothed bevel gear shaft disk 804 simultaneously drives one of the bevel gears 802 to rotate relatively forward, causing the straightening roller block 801 to rotate as a whole. This forces the large ends of the two adjacent and symmetrically distributed straightening roller blocks 801 to move closer together. After the toothed bevel gear shaft disk 804 rotates 180 degrees, the elastic block 8041 is located within the linear groove 7042.

[0068] If straightening is required for the tubular aluminum alloy profile:

[0069] First, the electric cylinder 702's stroke drives the batch linkage plate 701, several assembly blocks 703, and multi-directional drive rods 704 to move and engage with the keyed limiting cone 503 to limit the rotatable connection of the multi-directional drive rods 704. At this time, due to the size limitations of the fitting and bi-directional flipping structure 8, the limiting groove 7041 drives the elastic block 8041 and the key shaft limiting tube 705 to slide, leaving the required flipping space. When the limiting block 7053 at the end of the key shaft limiting tube 705 contacts and limits the spline sleeve 706, preventing the key shaft limiting tube 705 from sliding, the electric cylinder 702's stroke causes the batch linkage plate 701 to continuously move, driving multiple assembly blocks 703 and multi-directional drive rods 704, resulting in... The multi-directional drive rod 704 maintains linear sliding movement and cannot rotate. When the multi-directional drive rod 704 slides, the key shaft limiting tube 705 cannot move. Based on the reserved flipping space, the multi-directional drive rod 704 moves linearly, which, in conjunction with the spiral groove 7043, causes the elastic block 8041 to rotate. This causes the key shaft limiting tube 705 to rotate, driving the toothed bevel gear shaft disk 804 to rotate 180 degrees. The toothed bevel gear shaft disk 804 simultaneously drives another bevel gear 802 to rotate in the opposite direction, causing the straightening roller block 801 to rotate as a whole. This forces the small ends of the two adjacent and symmetrically distributed straightening roller blocks 801 to move closer together. After the toothed bevel gear shaft disk 804 rotates 180 degrees, the elastic block 8041 is located within the linear groove 7042.

[0070] S400: Bonding process: The return stroke of the electric cylinder 702 drives the batch linkage plate 701, several assembly blocks 703, and multi-directional drive rods 704 to move. At this time, the elastic block 8041 is located in the linear straight groove 7042 and slides from one end away from the toothed bevel shaft disk 804 to the end close to the toothed bevel shaft disk 804. Then, at the connection between the linear straight groove 7042 and the spiral groove 7043, the key shaft limiting tube 705 is moved as a whole, so that the two straightening roller blocks 801 come into contact and bond. Then, the filler block 805 is installed by rotating the bolt C with a tool.

[0071] S500: Size adjustment process: Multiple straightening roller shafts 3 are driven to lift and lower via the lifting frame 2, thereby adjusting the gap size between the two straightening roller blocks 801 and the straightening roller shaft 3;

[0072] S600: Straightening treatment:

[0073] The aluminum alloy profile to be straightened is placed manually or by machine in the gap between two straightening roller blocks 801 and straightening roller shaft 3. The servo motor 602 drives the belt meshing toothed disc 603 to drive the transmission belt 9, causing multiple spline sleeves 706 to rotate synchronously. This drives the multi-directional drive rod 704, key shaft limit tube 705 and straightening roller block 801 to rotate, so that the aluminum alloy profile is straightened in the gap between the straightening roller block 801 and straightening roller shaft 3.

[0074] The embodiments disclosed in this invention are preferred embodiments, but are not limited thereto. Those skilled in the art can easily understand the spirit of this invention based on the above embodiments and make different extensions and variations, but as long as they do not depart from the spirit of this invention, they are all within the protection scope of this invention.

Claims

1. A straightening device for aluminum alloy profiles, characterized in that, The system includes a support frame (1), lifting frames (2), straightening rollers (3), and an adaptive straightening system (4); two sets of lifting frames (2) are symmetrically arranged inside the support frame (1), and the gap between the opposite surfaces of the two sets of lifting frames (2) forms a fixed rolling cavity; several straightening rollers (3) are movably arranged in the fixed rolling cavity, and the straightening rollers (3) are hourglass-shaped; two adaptive straightening systems (4) are symmetrically arranged at the high end of the support frame (1); the adaptive straightening system (4) includes an adjusting frame assembly (5), a conveying drive structure (6), an adjusting drive structure (7), and a bidirectional flipping structure (8); two adjusting frame assemblies (5) are arranged at the high end of the support frame (1); two conveying drive structures (6) are respectively arranged on both sides of the adjusting frame assembly (5); the adjusting drive structure (7) is symmetrically arranged at the high end of the support frame (1); two conveying drive structures (6) are respectively arranged on both sides of the adjusting frame assembly (5); the two adjusting drive structures (6) are symmetrically arranged at the high end of the support frame (1); the two conveying drive structures (6) are respectively arranged on both sides of the adjusting frame assembly (5); the two conveying drive structures (6) are symmetrically arranged at the high end of the support frame (1 ... The adjustment drive structure (7) is connected to the conveying drive structure (6) via a transmission belt (9); a plurality of bidirectional flip structures (8) are arranged linearly and equally spaced at the output end of the adjustment drive structure (7), wherein two adjacent and symmetrically distributed bidirectional flip structures (8) constitute a dual-mode straightening structure; wherein the dual-mode straightening structure has an hourglass state and a spindle cylinder state; in the hourglass state of the dual-mode straightening structure, the straightening roller (3) is adjusted by lifting frame (2) to form a rectangular straightening structure with the dual-mode straightening structure; in the spindle cylinder state of the dual-mode straightening structure, the straightening roller (3) is adjusted by lifting frame (2) to form a right-angle straightening structure with the dual-mode straightening structure.

2. The straightening equipment for aluminum alloy profiles as described in claim 1, characterized in that, The adjusting frame assembly (5) includes a mounting frame (501), an extension frame (502), and a keyed limiting shaft cone (503); two mounting frames (501) are symmetrically arranged at the high end of the support frame (1); the extension frame (502) is arranged on the side of the mounting frame (501) away from the straightening roller shaft (3) via a connecting shaft; a plurality of keyed limiting shaft cones (503) are arranged linearly and equally spaced on the extension frame (502), wherein the keyed limiting shaft cone (503) is closer to the bidirectional flipping structure (8) at the smaller end; and the cross-section of the keyed limiting shaft cone (503) is a regular polygon.

3. The straightening equipment for aluminum alloy profiles as described in claim 2, characterized in that, The conveying drive structure (6) includes a mounting base A (601), a servo motor (602), and a belt meshing toothed disc (603); the two mounting bases A (601) are arranged on both sides of the mounting frame (501) by bolts A; and the mounting base A (601) is in the shape of an "open"; the servo motor (602) is arranged on one side of the mounting base A (601); the belt meshing toothed disc (603) is arranged at the output end of the servo motor (602); wherein, the two belt meshing toothed discs (603) are connected to the adjustment drive structure (7) by a transmission belt (9).

4. The straightening equipment for aluminum alloy profiles as described in claim 3, characterized in that, The adjustment drive structure (7) includes a batch linkage plate (701), an electric cylinder (702), an assembly block (703), a multi-directional drive rod (704), a key shaft limiting tube (705), a spline sleeve (706), and a mounting base C (707). The batch linkage plate (701) is arranged between the mounting frame (501) and the extension frame (502), wherein the surface of the batch linkage plate (701) has a plurality of connecting holes linearly and equally spaced. At least one electric cylinder (702) is arranged at the end of the mounting frame (501) through the mounting base B, wherein the batch linkage plate (701) is connected to the telescopic end of the electric cylinder (702). A plurality of assembly blocks (703) are arranged on the batch linkage plate (701) by bolts B. Furthermore, the assembly block (703) and the connecting hole are located at the same center; the multi-directional drive rod (704) is arranged on the assembly block (703) through bearing A; the key shaft limiting tube (705) is movably sleeved on the outer wall of the multi-directional drive rod (704); the spline sleeve (706) is slidably sleeved on the outer wall of the key shaft limiting tube (705); wherein, the outer surface of the spline sleeve (706) is provided with friction contact protrusions (7061) that are connected to the transmission belt (9) in an annular pattern at equal intervals; and, the inner wall of the spline sleeve (706) is provided with at least one keyed protrusion (7062); the mounting seat C (707) is movably arranged on the outer wall of the spline sleeve (706) through bearing B and connected to the mounting bracket (501).

5. The straightening equipment for aluminum alloy profiles as described in claim 4, characterized in that, The multi-directional drive rod (704) has a limiting groove (7041) at one end relative to the bidirectional flip structure (8), and the limiting groove (7041) is composed of at least two combined grooves connected end to end; and the combined groove is composed of a linear straight groove (7042) and a spiral groove (7043), and the connection between the linear straight groove (7042) and the spiral groove (7043) is in the shape of a "step"; wherein, the other end of the multi-directional drive rod (704) is provided with a positioning slot (7044) that is inserted and engaged with the keyed limiting shaft cone (503).

6. The straightening equipment for aluminum alloy profiles as described in claim 5, characterized in that, The key shaft limiting tube (705) has a linear limiting groove (7051) on its surface that slides with the key protrusion (7062); and the end of the key shaft limiting tube (705) is provided with an extension (7052); wherein the extension (7052) is rotatably connected to the bidirectional flip structure (8) through a bearing D; wherein at least one limiting block (7053) is provided on the side of the key shaft limiting tube (705) that is closer to the extension (7052).

7. The straightening equipment for aluminum alloy profiles as described in claim 6, characterized in that, The bidirectional flipping structure (8) includes a straightening roller block (801), a bevel gear (802), a cross tube frame (803), a toothed bevel gear shaft disc (804), and a filling block (805); the straightening roller block (801) is rotatably arranged at the end of the extension (7052); wherein the straightening roller block (801) is rotatably connected to the extension (7052) via a bearing C; wherein the gap at the middle of the interior of the straightening roller block (801) forms a flipping adjustment cavity; wherein a drive groove communicating with the flipping adjustment cavity is opened at the middle of the outer surface of the straightening roller block (801); and the outer surface of the straightening roller block (801) is opposite to the drive groove. Support grooves are provided on both sides of the long groove; two bevel gears (802) are fixedly arranged at the upper and lower ends inside the tilting adjustment cavity; the cross tube frame (803) is arranged in the tilting adjustment cavity and connected to the bevel gears (802) through bearing F; and the bevel gears (802) are rotatably connected to the cross tube frame (803) through bearing F; the toothless bevel gear shaft disc (804) is rotatably connected to the cross tube frame (803) through bearing E; and the toothless bevel gear shaft disc (804) is interlocked with the two bevel gears (802) respectively; three filling blocks (805) are arranged in the drive long groove and support groove through bolts C.

8. The straightening equipment for aluminum alloy profiles as described in claim 7, characterized in that, The inner wall of the toothless bevel gear shaft disk (804) is provided with an elastic limiting cavity relative to the path of the limiting inner groove (7041); wherein, an elastic block (8041) is provided inside the elastic limiting cavity, and the elastic block (8041) is elastically connected to the toothless bevel gear shaft disk (804) by a spring.

9. The method of using the straightening equipment for aluminum alloy profiles as described in any one of claims 1-8, characterized in that, Includes the following steps: S100: Pre-processing: First, the lifting frame (2) drives multiple straightening rollers (3) to descend, reserving operating space for the bidirectional flipping structure (8) to flip; then, the filler block (805) is removed by rotating the tool bolt C; S200: Locking process: Based on external control, the output end of the servo motor (602) is kept stable and cannot rotate, and under the friction contact of the inner wall of the transmission belt (9) and the friction contact protrusion (7061), the spline sleeve (706) is simultaneously limited; S300: Adjustment process: If the right-angle aluminum alloy profile is straightened: First, the electric cylinder (702) stroke drives the batch linkage plate (701) and several assembly blocks (703), multi-directional drive rod (7061) to work. 04) The movement is performed and the keyed limiting shaft cone (503) is inserted to limit the rotatable connection of the multi-directional drive rod (704). At this time, due to the size limitation of the fitting and bidirectional flipping structure (8), the limiting inner groove (7041) drives the elastic block (8041) and the key shaft limiting tube (705) to slide and move as a whole, leaving the required flipping space. When the limiting block (7053) at the end of the key shaft limiting tube (705) contacts and limits the spline sleeve (706), the key shaft limiting tube (705) cannot slide. Under the stroke of the electric cylinder (702), the batch linkage plate (701) drives multiple assembly blocks (703) and multi-directional drive rods (704) to move continuously. The movement causes the multi-directional drive rod (704) to maintain linear sliding movement and cannot rotate. While the multi-directional drive rod (704) slides, the key shaft limiting tube (705) cannot move. Based on the reserved flipping space, the multi-directional drive rod (704) moves linearly, and the spiral groove (7043) causes the elastic block (8041) to rotate. This causes the key shaft limiting tube (705) to rotate, driving the toothed bevel gear shaft disk (804) to rotate 180 degrees. The toothed bevel gear shaft disk (804) simultaneously drives one of the bevel gears (802) to rotate relatively forward, causing the straightening roller block (801) to rotate as a whole. This forces the large ends of two adjacent and symmetrically distributed straightening roller blocks (801) to face each other. Approaching; and after the toothed bevel gear shaft disc (804) rotates 180 degrees, the elastic block (8041) is located in the linear straight groove (7042); if the square tube aluminum alloy profile is straightened: firstly, the batch linkage plate (701) and several assembly blocks (703) and multi-directional drive rod (704) are moved by the stroke of the electric cylinder (702) and are inserted and matched with the keyed limiting shaft cone (503) to limit the rotatable connection of the multi-directional drive rod (704). At this time, based on the size limitation of the fitting and bidirectional flipping structure (8), the limiting inner groove (7041) drives the elastic block (8041) and the key shaft limiting tube (705) to slide and move as a whole, leaving the required flipping space;When the limiting block (7053) at the end of the key shaft limiting tube (705) contacts and limits the spline sleeve (706), the key shaft limiting tube (705) cannot slide. Under the stroke of the electric cylinder (702), the batch linkage plate (701) drives multiple assembly blocks (703) and multi-directional drive rods (704) to move continuously, causing the multi-directional drive rods (704) to maintain linear sliding movement and not rotate. When the multi-directional drive rods (704) slide, the key shaft limiting tube (705) cannot move, and based on the reserved flipping space, the multi-directional drive rods (704) move linearly, cooperating with the spiral grooves (704) in a spiral shape. 3) This causes the elastic block (8041) to rotate, resulting in the key shaft limiting tube (705) rotating and driving the toothed bevel gear shaft disk (804) to rotate 180 degrees. The toothed bevel gear shaft disk (804) simultaneously drives another bevel gear (802) to rotate in the opposite direction, causing the straightening roller block (801) to rotate as a whole, forcing the small ends of the two adjacent and symmetrically distributed straightening roller blocks (801) to move closer to each other; and after the toothed bevel gear shaft disk (804) rotates 180 degrees, the elastic block (8041) is located in the linear straight groove (7042); S400: bonding process: the batch linkage plate (701) and the return working of the electric cylinder (702) are driven. Several assembly blocks (703) and multi-directional drive rods (704) move, at which time the elastic block (8041) is located in the linear straight groove (7042) and slides from one end away from the toothed bevel shaft disc (804) to the other end close to the toothed bevel shaft disc (804); then, at the connection between the linear straight groove (7042) and the spiral groove (7043), the key shaft limiting tube (705) is moved as a whole, so that the two straightening roller blocks (801) come into contact and fit together; then the filling block (805) is installed by rotating the tool bolt C; S500: Size adjustment process: the lifting frame (2) drives multiple straightening roller shafts (3) to rise. The lowering operation causes the gap between the two straightening roller blocks (801) and the straightening roller shaft (3) to be adjusted; S600: Straightening process: The aluminum alloy profile to be straightened is placed manually or by machine in the gap between the two straightening roller blocks (801) and the straightening roller shaft (3). The servo motor (602) drives the belt meshing gear plate (603) to drive the transmission belt (9) so that multiple spline sleeves (706) rotate synchronously, driving the multi-directional drive rod (704), key shaft limit tube (705) and straightening roller blocks (801) to rotate, so that the aluminum alloy profile is straightened in the gap between the straightening roller blocks (801) and the straightening roller shaft (3).

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