Aluminum profile straightening device

Abstract

The application discloses an aluminum profile straightening device, relates to the field of aluminum profile straightening, and comprises a straightening machine, the straightening machine comprises a clamping block one and a clamping block two, the clamping faces of the clamping block one and the clamping block two oppositely arranged are provided with protective pads for protecting the aluminum profile, a plurality of protective protrusions for transversely limiting the aluminum profile are arranged on the surface side of the protective pad, the protective pad is in a wave shape as a whole, the protective protrusions are in a semicircular shape as a whole, and the protective protrusions are arranged in a transverse arrangement on the surface side of the protective pad. The combination design of the wave-shaped protective pad and the transverse semicircular protrusions can protect the surface of the aluminum profile, enhance the static friction force between the clamping faces of the clamping block one and the clamping block two and the aluminum profile, effectively prevent the aluminum profile from moving during the straightening process, and improve the straightening precision of the aluminum profile and the quality of finished products.

Description

Technical Field

[0001] This application relates to the field of aluminum profile straightening, and in particular to an aluminum profile straightening device. Background Technology

[0002] In the production and processing of aluminum profiles, straightening is a key subsequent process to ensure the straightness of the profiles and eliminate internal residual stress. In industry, tension straightening machines are widely used to straighten aluminum profiles. The principle is to use hydraulic or mechanical drive devices to make the clamping mechanisms at both ends of the equipment firmly clamp the two ends of the profile and apply a strong axial tensile force, so that the profile undergoes a small amount of plastic deformation within the elastic limit, thereby achieving the purpose of straightening.

[0003] However, during the straightening process of aluminum profiles, the clamping blocks usually come into direct contact with the profile surface, which can easily leave indentations or scratches on the profile surface, affecting the product's appearance and quality. At the same time, the clamping surface of the clamping blocks is generally a flat or simple textured surface, which can easily cause the profile to slip or move during the stretching of the aluminum profile, resulting in insufficient straightening or scrapping of the profile, affecting production efficiency and yield, and reducing the straightening quality of the aluminum profile. Utility Model Content

[0004] In order to improve the problems that clamping blocks easily damage the surface of aluminum profiles and that the clamping surface is prone to slippage and movement during the stretching process, which reduces the straightening quality, this application provides an aluminum profile straightening device.

[0005] The aluminum profile straightening device provided in this application adopts the following technical solution:

[0006] An aluminum profile straightening device includes a straightening machine, which includes a clamping block one and a clamping block two. The clamping working surfaces of the clamping block one and the clamping block two are respectively provided with protective pads for protecting the aluminum profile. One side of the surface of the protective pad is provided with a plurality of protective protrusions for lateral limiting of the aluminum profile.

[0007] The protective pad is generally wavy, and the protective protrusions are generally semi-circular. The protective protrusions are arranged horizontally on one side of the surface of the protective pad.

[0008] By adopting the above technical solution, and by installing corrugated protective pads on the surfaces of clamping blocks one and two, clamping blocks one and two can protect the surface of the aluminum profile during the clamping and positioning process, preventing the surface of the aluminum profile from being scratched by clamping blocks one and two. At the same time, through the semi-circular protective protrusions, the horizontally arranged protective protrusions can generate static friction between the longitudinally clamped aluminum profile, effectively resisting the longitudinal tension generated by the straightening machine during the straightening process of the aluminum profile, preventing the aluminum profile from being pulled out or moving during the straightening process, thereby improving the straightening quality of the aluminum profile.

[0009] Preferably, quick-connect blocks are symmetrically arranged on the side of the protective pad near the second clamping block, quick-connect grooves adapted to the quick-connect blocks are symmetrically opened on the side of the second clamping block near the first clamping block, positioning blocks for positioning the quick-connect blocks are symmetrically arranged inside the quick-connect grooves, and positioning grooves adapted to the positioning blocks are opened on both sides of the surface of the quick-connect blocks.

[0010] By adopting the above technical solution, the protective pad can be quickly connected to one side of the surface of the clamping block by inserting the quick-connect block into the quick-connect groove. After quick connection, the positioning block is inserted into the positioning groove to position the quick-connect block inside the quick-connect groove, thereby fixing the protective pad to one side of the surface of the clamping block. This achieves detachable installation of the protective pad, which is convenient for replacement or maintenance of the protective pad in the future.

[0011] Preferably, a guide block is provided on one side of the surface of the positioning block, which is disposed inside the quick-connect groove, and the guide block is used to guide the positioning block.

[0012] By adopting the above technical solution, the positioning block is limited by the guide block to prevent the positioning block from deviating during the movement.

[0013] Preferably, an elastic element is provided on one side of the surface of the positioning block, which is disposed inside the quick-connect groove. The elastic element is used to drive the positioning block to automatically reset.

[0014] By adopting the above technical solution, the positioning block presses on the elastic element as it moves away from the quick-connect block, and the surface of the positioning block away from the elastic element is squeezed from the surface of the quick-connect block. When the positioning groove moves to be directly opposite the positioning block, the positioning block loses the squeezing force from the surface of the quick-connect block, so that the positioning block can automatically pop out by the elastic force of the elastic element, so that the positioning block is positioned on the quick-connect block, thereby realizing the automatic positioning of the positioning block.

[0015] Preferably, drive components for driving the positioning block to move are symmetrically arranged on both sides of the surface of the second clamping block;

[0016] The driving assembly includes a driving plate disposed on one side of the surface of the second clamping block, and a driving rod disposed on one side of the surface of the positioning block near the surface of the second clamping block.

[0017] By adopting the above technical solution, the drive plate is pushed away from the quick-connect block in a direction away from the quick-connect block. The drive plate then drives the drive rod away from the quick-connect block, and the drive rod drives the positioning block to disengage from the inside of the positioning groove. This completes the automatic positioning and manual release of the positioning block, thereby ensuring the stability of the protective pad installed on one side of the surface of the clamping block and improving the fixing effect between the protective pad and the clamping block.

[0018] Preferably, the side of the positioning block closest to the guide block is a flat surface, and the side of the positioning block furthest from the guide block is an arc-shaped surface.

[0019] By adopting the above technical solution, by setting the surface of the positioning block near the guide block as a plane and the surface of the positioning block away from the guide block as an arc-shaped surface, it is beneficial to provide a more stable positioning effect for the positioning block.

[0020] Preferably, the surface of the drive plate near the clamping block 2 can cover the entire drive rod.

[0021] By adopting the above technical solution, the entire drive rod is shielded by the side of the drive plate near the clamping block 2, so that foreign objects can be prevented from entering the quick-connect groove during the positioning process of the positioning block, thereby ensuring the smoothness of the drive rod driving the positioning block to move.

[0022] Preferably, the protective pad is made of polyurethane elastomer, and the protective protrusion is made of reinforced polyurethane material.

[0023] By adopting the above technical solution, the protective pad, made of polyurethane elastomer, can provide uniform buffer protection for the aluminum profile surface through its elasticity, wear resistance and adjustable hardness, while ensuring sufficient support rigidity and ultra-long service life. The protective protrusion is made of reinforced polyurethane material, which can adapt to the micro-unevenness or slight cross-sectional shape tolerance of the aluminum profile surface, so that the clamping force distribution of clamping block one and clamping block two is more in line with reality, avoiding clamping instability caused by local suspension.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. By combining the corrugated protective pad with the horizontal semi-circular protrusion, the surface of the aluminum profile is protected while the static friction between the clamping surfaces of clamping blocks one and two and the aluminum profile is enhanced, effectively preventing the aluminum profile from shifting during the straightening process and improving the straightening accuracy and finished product quality of the aluminum profile.

[0026] 2. The combination of quick-connect blocks and spring positioning blocks enables quick disassembly and assembly of the protective pad, facilitating maintenance and replacement. At the same time, the shielding design of the drive plate and drive rod prevents foreign objects from entering, enhancing the reliability of the elastic components in harsh industrial environments. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of the present application;

[0028] Figure 2 This is a schematic diagram of a partial three-dimensional structure of this application;

[0029] Figure 3This is a partial cross-sectional structural diagram of this application;

[0030] Figure 4 For this application Figure 3 Enlarged view of point A in the middle;

[0031] Figure 5 This is a schematic diagram of the explosion structure of the clamping block 2 and the protective pad in this application;

[0032] Figure 6 For this application Figure 5 Enlarged view of point B in the middle;

[0033] Figure 7 This is a cross-sectional structural diagram of the second clamping block in this application;

[0034] Figure 8 For this application Figure 7 Enlarged view of point C in the middle;

[0035] Figure 9 For this application Figure 7 Enlarged view of point D in the middle;

[0036] Figure 10 This is a partial three-dimensional structural diagram of the protective pad of this application.

[0037] Reference numerals: 1. Straightening machine; 2. Hydraulic cylinder; 21. Hydraulic base; 211. Sliding space;

[0038] 3. Clamping block one;

[0039] 4. Clamping block two; 41. Quick-connect groove; 42. Receiving groove; 421. Guide groove; 43. Sliding groove;

[0040] 5. Protective pad; 51. Quick-connect block; 511. Positioning groove; 52. Protective protrusion;

[0041] 6. Positioning block; 61. Guide block; 62. Elastic element;

[0042] 7. Drive assembly; 71. Drive board; 72. Drive rod. Detailed Implementation

[0043] The following is in conjunction with the appendix Figures 1-10 This application will be described in further detail.

[0044] This application discloses an aluminum profile straightening device.

[0045] Reference Figure 1An aluminum profile straightening device includes a straightening machine 1. The straightening machine 1 includes a feeding and conveying system, a main straightening system (including a tension straightening unit), a clamping and fixing system, a drive and power system, a feeding and collecting system, and a central electrical control system. The straightening machine 1 belongs to the prior art, and its specific working principle and working process will not be described in detail.

[0046] The clamping and fixing system of the straightening machine 1 includes two sets of hydraulic cylinders 2 (which achieve precise closed-loop control of force through proportional valves or servo valves), hydraulic base 21, clamping block 3 and clamping block 4, etc., which are respectively installed at both ends of the straightening machine 1 to clamp the horizontally placed aluminum profile. The telescopic end of the hydraulic cylinder 2 is fixedly connected to the top surface of clamping block 3. The side of the hydraulic base 21 is semi-U-shaped, and a sliding space 211 is opened inside the hydraulic base 21. The surface of clamping block 3 abuts against the inner wall of the sliding space 211, so that clamping block 3 can slide stably inside the sliding space 211. The hydraulic cylinder 2, hydraulic base 21, clamping block 3 and clamping block 4 are part of the clamping and fixing system, drive and power system of the straightening machine 1. The specific operating principle, opening and closing principle and operation process will not be described in detail. The clamping surface of clamping block 3 and clamping block 4 is a corrugated surface, which can better clamp the aluminum profile.

[0047] The hydraulic cylinder 2 drives the clamping block 3 to move from top to bottom. When the clamping block 3 moves downward, the clamping block 3 and the clamping block 4 cooperate to clamp the aluminum profile. When the clamping block 3 moves upward, the clamping block 3 and the clamping block 4 move away from each other, releasing the clamping of the aluminum profile.

[0048] Reference Figure 2 , Figure 5 , Figure 10 One side of the bottom surface of clamping block 3 and one side of the top surface of clamping block 4 are both abutted by protective pads 5 for protecting aluminum profiles. The protective pads 5 are generally wavy. The bottom surface of the protective pads 5 is in contact with the wavy surface of the top of clamping block 4, and the two sides of the protective pads 5 are on the same vertical line as the two sides of clamping block 4. Multiple protective protrusions 52 for lateral limiting of aluminum profiles are fixedly connected to the top surface of the protective pads 5. The protective protrusions 52 are generally semi-circular and are arranged laterally on the top surface of the protective pads 5.

[0049] By installing corrugated protective pads 5 on the surfaces of clamping blocks 3 and 4, the clamping blocks 3 and 4 can protect the surface of the aluminum profile during the clamping and positioning process, preventing the surface of the aluminum profile from being scratched by the clamping blocks 3 and 4. At the same time, through the semi-circular protective protrusions 52, the horizontally arranged protective protrusions 52 can generate static friction between the longitudinally clamped aluminum profile, effectively resisting the longitudinal tension generated by the straightening machine 1 during the straightening process of the aluminum profile, preventing the aluminum profile from being pulled out or moving during the straightening process, thereby improving the straightening quality of the aluminum profile.

[0050] Reference Figures 2-9 A quick-connect block 51 is symmetrically fixed to one side of the protective pad 5 near the second clamping block 4. The bottom surface of the quick-connect block 51 is arc-shaped at both ends. A quick-connect groove 41 adapted to the quick-connect block 51 is symmetrically opened on one side of the second clamping block 4 near the first clamping block 3. A positioning block 6 for positioning the quick-connect block 51 is symmetrically arranged inside the quick-connect groove 41. The top surface of the positioning block 6 near the quick-connect block 51 is arc-shaped, and the bottom surface of the positioning block 6 is flat. Positioning grooves 511 adapted to the positioning block 6 near the quick-connect block 51 are opened on both sides of the surface of the quick-connect block 51. A receiving groove 42 is opened on both sides of the inner wall of the quick-connect groove 41. The surface of the positioning block 6 away from the quick-connect block 51 abuts against the inner wall of the receiving groove 42, so that the positioning block 6 can slide stably inside the receiving groove 42.

[0051] A guide block 61 is fixedly connected to the bottom surface of the positioning block 6 to guide the positioning block 6. A guide groove 421 adapted to the guide block 61 is opened on the bottom wall of the receiving groove 42. The surface of the guide block 61 abuts against the inner wall of the guide groove 421, so that the guide block 61 can slide stably inside the guide groove 421. An elastic member 62 for driving the positioning block 6 to automatically reset is fixedly connected to the middle of the side of the positioning block 6 away from the quick-connect block 51. The end of the elastic member 62 away from the positioning block 6 is fixedly connected to the middle of the side wall of the receiving groove 42 away from the quick-connect block 51.

[0052] It should be noted that: the elastic element 62 is a spring, and the spring is calculated by the formula: F = kx, where F is the external force on the spring, in N, k is the spring constant, in N / m, and x is the deformation of the spring, in m. The elastic force of the spring is then calculated so that it can be used in this application.

[0053] When the bottom surface of the quick-connect block 51 abuts against the bottom wall of the quick-connect groove 41, the inner wall of the positioning groove 511 and the surface of the positioning block 6 are on the same horizontal line, so that the positioning block 6 can be directly inserted into the positioning groove 511 to position the quick-connect block 51.

[0054] By inserting the quick-connect block 51 at the bottom of the protective pad 5 into the quick-connect groove 41, the bottom surface of the quick-connect block 51 abuts against the bottom wall of the quick-connect groove 41. During the insertion of the quick-connect block 51 into the quick-connect groove 41, the bottom arc surface of the quick-connect block 51 presses against the top arc surface of the positioning block 6, causing the positioning block 6 to be pressed into the receiving groove 42. The positioning block 6 slides inside the receiving groove 42, causing the positioning block 6 to press against the elastic member 62, causing the elastic member 62 to deform. At this time, the end of the positioning block 6 away from the elastic member 62 is abutted by the side of the quick-connect block 51.

[0055] When the bottom surface of the quick-connect block 51 abuts against the bottom wall of the quick-connect groove 41, the inner wall of the positioning groove 511 and the surface of the positioning block 6 are on the same horizontal line. At this time, the positioning block 6 loses the abutment from the side of the quick-connect block 51, causing the elastic element 62 to lose pressure and restore its deformation. As a result, the positioning block 6 moves closer to the quick-connect block 51 under the elastic force of the elastic element 62, so that the positioning block 6 is inserted into the positioning groove 511 and the quick-connect block 51 is positioned. This completes the quick installation and fixation of the protective pad 5, which is convenient for the replacement or maintenance of the protective pad 5 in the future.

[0056] The protective pad 5 can be automatically positioned by the arc-shaped surface at the top of the positioning block 6 and the arc-shaped surface at the bottom of the quick-connect block 51. After positioning, the positioning stability is maintained by the bottom plane of the positioning block 6, so that when the protective pad 5 needs to be removed from the clamping block 2 4, it can only be removed by external force.

[0057] Reference Figures 2-6 The two sides of the surface of the clamping block 4 are symmetrically provided with driving components 7 for driving the positioning block 6 to move. The driving components 7 include a driving plate 71 that abuts against one side of the surface of the clamping block 4. The driving plate 71 is rectangular in shape and the corners are rounded. A driving rod 72 is fixedly connected to the side of the driving plate 71 near the surface of the clamping block 4. A sliding groove 43 is opened on the side wall of the receiving groove 42 near the driving plate 71. The surface of the driving rod 72 abuts against the inner wall of the sliding groove 43, so that the driving rod 72 can slide stably inside the sliding groove 43. The side of the driving plate 71 near the surface of the clamping block 4 can cover the entire driving rod 72.

[0058] When the protective pad 5 needs to be removed, the user manually pushes the drive plate 71 away from the center of the quick-connect block 51. The drive plate 71 moves the drive rod 72 away from the center of the quick-connect block 51, and the drive rod 72 moves the positioning block 6 away from the quick-connect block 51. This causes the positioning block 6 to disengage from the positioning groove 511, thereby releasing the positioning of the quick-connect block 51. After the positioning is released, the protective pad 5 is manually moved upward to disengage the quick-connect block 51 from the quick-connect groove 41, thus completing the removal of the protective pad 5.

[0059] It should be added that: the protective pad 5 is made of polyurethane elastomer with a Shore A of 75°-80°; the protective protrusion 52 is made of reinforced polyurethane with a Shore A of 85°-90°; the quick-connect block 51 is made of 45# steel with surface hardening or hard chrome plating; the positioning block 6 is made of T10 tool steel with hardening treatment; the guide block 61 is made of high-strength wear-resistant nylon such as MC901; the elastic element 62 is made of stainless steel spring to improve durability in dusty and oily environments and ensure stable elasticity after long-term compression; the drive plate 71 is made of 45# steel with heat treatment; and the drive rod 72 is made of 40Cr alloy steel with heat treatment and hard chrome plating.

[0060] The installation method and process between clamping block 3 and protective pad 5 are the same as those between clamping block 4 and protective pad 5.

[0061] The protective pad 5, as a vulnerable part, adopts a modular quick-release structure, which facilitates regular inspection and replacement to address wear and tear issues after long-term use. For irregular cross-section aluminum profiles, the protective pad 5 with different hardness can be replaced to adapt to the situation, thereby enhancing the versatility of this application.

[0062] During the straightening process, the clamping and fixing system of the straightening machine 1 will monitor the pressure of the clamping hydraulic cylinder 2 in real time (the pressure sensor is integrated in the piston chamber, rod chamber or connected to the oil inlet pipe of the hydraulic cylinder 2 to monitor the oil pressure). When the system detects a downward trend in clamping force due to profile elongation, slight cross-sectional shrinkage (Poisson effect) or material rheology, it will automatically increase the clamping force slightly to maintain a constant and safe clamping force and prevent slippage. This process is existing technology, and the specific principle and working process will not be described in detail.

[0063] The implementation principle of the aluminum profile straightening device in this application embodiment is as follows: Before use, the protective pad 5 is quickly installed on the corrugated clamping surface of the clamping block 2 4 and the clamping block 1 3 through the cooperation between the quick-connect block 51, the positioning block 6 and the driving component 7. This allows the clamping block 1 3 and the clamping block 2 4 to protect the surface of the aluminum profile during the clamping and positioning process, preventing the surface of the aluminum profile from being scratched by the clamping block 1 3 and the clamping block 2 4. At the same time, through the semi-circular protective protrusions 52, the horizontally arranged protective protrusions 52 can generate static friction with the longitudinally clamped aluminum profile, effectively resisting the longitudinal tension generated by the straightening machine 1 during the straightening process of the aluminum profile, preventing the aluminum profile from being pulled out or moving during the straightening process, thereby improving the straightening quality of the aluminum profile.

[0064] Aluminum profile straightening process: The aluminum profile is smoothly fed into the straightening machine 1 through the feeding and conveying system. Then, the clamping (i.e., the hydraulic cylinder 2 drives the clamping block 3 to move, which cooperates with the clamping block 4 to achieve clamping) and fixing system firmly grips both ends of the aluminum profile. The drive and power system provides precise power to make the aluminum profile pass through the main straightening system of the straightening machine 1. Under the strong stretching and bending correction of the stretching and straightening unit, the internal stress and deformation are eliminated. Finally, the unloading and collection system removes the straightened profile and collects it neatly. The whole process is coordinated by the central electrical control system to achieve fully automatic and efficient operation. This straightening process is existing technology, and the specific process and structural principle will not be described in detail.

[0065] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An aluminum profile straightening device, comprising a straightening machine (1), wherein the straightening machine (1) comprises a clamping block one (3) and a clamping block two (4), characterized in that: The clamping working surfaces of clamping block one (3) and clamping block two (4) are provided with protective pads (5) for protecting aluminum profiles. One side of the surface of the protective pad (5) is provided with multiple protective protrusions (52) for lateral limiting of aluminum profiles. The protective pad (5) is generally wavy, and the protective protrusion (52) is generally semi-circular. The protective protrusion (52) is arranged horizontally on one side of the surface of the protective pad (5).

2. The aluminum profile straightening device according to claim 1, characterized in that: The protective pad (5) has a quick-connect block (51) symmetrically arranged on the side of the surface near the clamping block two (4). The clamping block two (4) has a quick-connect groove (41) symmetrically opened on the side of the surface near the clamping block one (3) that is adapted to the quick-connect block (51). The quick-connect groove (41) has a positioning block (6) symmetrically arranged inside for positioning the quick-connect block (51). The quick-connect block (51) has a positioning groove (511) adapted to the positioning block (6) on both sides of the surface of the quick-connect block (51).

3. The aluminum profile straightening device according to claim 2, characterized in that: The positioning block (6) has a guide block (61) disposed inside the quick-connect groove (41) on one side of its surface. The guide block (61) is used to guide the positioning block (6).

4. The aluminum profile straightening device according to claim 2, characterized in that: One side of the surface of the positioning block (6) is provided with an elastic element (62) disposed inside the quick-connect groove (41), and the elastic element (62) is used to drive the positioning block (6) to automatically reset.

5. The aluminum profile straightening device according to claim 2, characterized in that: The two sides of the surface of the clamping block (4) are symmetrically provided with driving components (7) for driving the positioning block (6) to move; The drive assembly (7) includes a drive plate (71) disposed on one side of the surface of the clamping block (4). The drive plate (71) is provided with a drive rod (72) disposed on one side of the surface of the positioning block (6) near the surface of the clamping block (4). The drive rod (72) is disposed on one side of the surface of the clamping block (4).

6. The aluminum profile straightening device according to claim 3, characterized in that: The side of the positioning block (6) closest to the guide block (61) is a flat surface, and the side of the positioning block (6) furthest from the guide block (61) is an arc-shaped surface.

7. The aluminum profile straightening device according to claim 5, characterized in that: The drive plate (71) can shield the entire drive rod (72) on the side of the surface near the clamping block (4).

8. The aluminum profile straightening device according to claim 1, characterized in that: The protective pad (5) is made of polyurethane elastomer, and the protective protrusion (52) is made of reinforced polyurethane material.

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