A conveying device for aluminum profile machining

Abstract

This invention provides a conveying device for aluminum profile processing, relating to the field of aluminum profile processing technology. It includes a first conveyor line, a second conveyor line, a third conveyor line, a fourth conveyor line, a fifth conveyor line, and a sixth conveyor line arranged sequentially, side-by-side, and in a staggered manner along the aluminum profile conveying direction. Multiple sets of pre-adjustment modules are spaced apart along the aluminum profile axial direction between the discharge end of the second conveyor line and the inlet end of the third conveyor line. Each pre-adjustment module includes: a support frame fixed to the machine frame; a lifting seat slidably connected to the support frame; a support frame with guide rollers flush with the conveying surface of the second conveyor line; and a lifting drive cylinder that drives the lifting seat to vertically lift and lower the support frame. The pre-adjustment module cuts off the force transmission between the bent portion of the aluminum profile and the conveyor line by step-by-step lifting, and works with the conveyor line to straighten the bent aluminum profile, enabling the aluminum profile to accurately enter the subsequent stretching station, significantly improving production continuity and processing efficiency.

Description

Technical Field

[0001] This invention relates to the field of aluminum profile processing technology, and more specifically, to a conveying device for aluminum profile processing. Background Technology

[0002] Aluminum profiles, with their excellent properties such as lightweight, high strength, corrosion resistance, ease of forming, and recyclability, are widely used in core fields such as building materials, rail transportation, new energy vehicles, and industrial precision equipment. Extrusion forming is the core process in aluminum profile manufacturing. After hot extrusion forming, aluminum profiles need to undergo key post-processing steps in sequence, including length cutting, traction conveying, stretching and straightening, and cooling and unloading. The processing accuracy of these steps directly determines the form and position tolerances, dimensional stability, and performance of the finished aluminum profiles. Among these, the conveying device is the core hub connecting each post-processing step. Its conveying stability, profile posture control accuracy, and process connection efficiency directly affect the processing accuracy, finished product qualification rate, and large-scale production efficiency of the aluminum profiles.

[0003] Currently, the conveying devices commonly used in the aluminum profile processing industry mostly adopt multi-segment continuous roller conveyor structures, which can only realize the basic transfer function of aluminum profiles between various processes. In high-precision, large-scale continuous production processes, there are still many technical defects that are difficult to solve:

[0004] Firstly, long aluminum profiles are prone to bending and deformation during transport, and their posture control capability is severely insufficient. After extrusion and length cutting, aluminum profiles are often of long length. During continuous roller conveyor transport, they are susceptible to bending due to their own weight, uneven force on the front and rear traction equipment, and roller conveyor vibration, resulting in overall or partial bending. Bending profiles cannot be accurately aligned for subsequent stretching and straightening. This not only requires manual on-site adjustment of the profile's posture, significantly disrupting production continuity and reducing the efficiency of automated production line operation, but also easily leads to excessive dimensional and positional tolerances after stretching and straightening due to initial profile posture deviations, resulting in a large number of defective products, causing serious waste of aluminum alloy raw materials and significantly increasing production and processing costs.

[0005] Secondly, it cannot adapt to the high-efficiency production conditions of simultaneous stretching of multiple aluminum profiles, and the centering and positioning accuracy is insufficient. In order to improve production efficiency, the industry generally adopts the process mode of simultaneous stretching and straightening of multiple aluminum profiles in large-scale production. However, the existing conveying device can only realize the basic transfer of profiles and cannot perform multi-segment precise centering and positioning of multiple aluminum profiles. This results in a large difference in the initial straightness and coaxial alignment with the straightening machines at both ends when multiple profiles enter the stretching station. Moreover, during the simultaneous stretching process, it is very easy to have uneven stress on individual profiles and inconsistent stretching amounts of each profile. Ultimately, this results in inconsistent straightness and cross-sectional dimension uniformity of the finished aluminum profiles, which cannot meet the processing requirements. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a conveying device for aluminum profile processing, which effectively solves the problem of insufficient automatic posture correction capability of existing devices for aluminum profiles, and improves the processing quality and production automation efficiency of aluminum profiles.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] This invention provides a conveying device for aluminum profile processing, comprising: a first conveying line, a second conveying line, a third conveying line, a fourth conveying line, a fifth conveying line, and a sixth conveying line arranged sequentially, side by side, and in an alternating manner along the conveying direction of the aluminum profile; a plurality of pre-adjustment modules are provided at intervals along the axial direction of the aluminum profile between the discharge end of the second conveying line and the inlet end of the third conveying line; each pre-adjustment module includes: a support frame fixed to the frame; a lifting seat slidably connected to the support frame; a support frame with guide rollers, the guide rollers being flush with the conveying surface of the second conveying line; and a lifting drive cylinder that drives the lifting seat to vertically lift and lower the support frame; the pre-adjustment module cuts off the force transmission between the bent part of the aluminum profile and the conveying line by step lifting, and straightens the bent aluminum profile in conjunction with the conveying line to correct its conveying posture.

[0009] According to one embodiment of the present invention, four sets of pre-adjustment modules are equally spaced along the axial direction of the aluminum profile, namely a first pre-adjustment module, a second pre-adjustment module, a third pre-adjustment module and a fourth pre-adjustment module, wherein the first pre-adjustment module and the fourth pre-adjustment module are respectively located at both ends of the aluminum profile conveying path, and the second pre-adjustment module and the third pre-adjustment module are respectively located in the middle of the aluminum profile conveying path.

[0010] According to one embodiment of the present invention, the four sets of pre-adjustment modules are configured to be lifted in stages to achieve the following straightening mode: for aluminum profiles that are bent upwards in the middle, the four sets of pre-adjustment modules are lifted synchronously, with the second and third pre-adjustment modules in the middle supporting and lifting the bent section first, and the pre-straightening is completed in conjunction with the axial thrust of the second conveyor line on both ends of the aluminum profile; for aluminum profiles that are bent on one side, the pre-adjustment module corresponding to the bent side is lifted first and then drives the other modules to be lifted in stages in sequence, lifting the bent side, and the pre-straightening is completed in conjunction with the traction force of the second conveyor line on the straight side.

[0011] According to one embodiment of the present invention, the bottom of the lifting seat is slidably connected to the platform of the support frame in a vertical plane by at least two vertically arranged guide rods; the support frame is an L-shaped structure, with its horizontal support fixed to the top surface of the lifting seat, and the guide rollers are rotatably installed on the horizontal support along the aluminum profile conveying direction; the lifting drive cylinder is fixed to the bottom of the platform of the support frame, and its piston rod extends vertically upward through the platform of the support frame and is fixedly connected to the bottom end of the lifting seat.

[0012] According to one embodiment of the present invention, at least one set of first centering modules is provided at the gap of the conveying rollers of the third conveyor line, and at least one set of second centering modules is provided at the gap of the conveying rollers of the fourth conveyor line. The first centering modules and the second centering modules are arranged alternately along the axial direction of the aluminum profile, and both adopt the same structure.

[0013] According to one embodiment of the present invention, both the first centering module and the second centering module include a track seat, an adjusting arm, a column, a cylinder, and a limiting component; the track seat is fixedly installed on the frame of the corresponding conveyor line, and its length direction is perpendicular to the conveying direction of the aluminum profile, and a linear slide rail is fixed on the top surface of the track seat; the bottom of the adjusting arm is slidably connected to the track seat through a slider adapted to the linear slide rail, and a limiting component that can rotate around the end of the adjusting arm facing the aluminum profile is installed; the column is fixed to one side of the track seat, and a cylinder piston rod fixed at the top of the column is arranged parallel to the track seat, and the end of the piston rod is fixedly connected to the side wall of the adjusting arm, for driving the adjusting arm to drive the limiting component to complete the centering and positioning of the aluminum profile.

[0014] According to one embodiment of the present invention, two parallel and spaced mounting plates are fixed to one end of the adjusting arm facing the aluminum profile, and a rotating shaft passes through the two mounting plates; the limiting assembly includes a rotating bracket and a drive motor, the bottom end of the rotating bracket is rotatably mounted between the two mounting plates through the rotating shaft, the drive motor is fixed to one of the mounting plates, and its output shaft is connected to the rotating shaft for driving the rotating bracket to reciprocate to switch between non-working and working states.

[0015] According to one embodiment of the present invention, the first centering module and the second centering module cooperate to perform regional tightening and centering of multiple aluminum profiles; the working area between the two straightening machines is divided along the axial direction of the aluminum profile into area b in the middle section, and areas a and c at both ends. During the centering operation, the first centering module and the second centering module corresponding to area b first tighten the middle section of the multiple aluminum profiles and align them with the working center of the straightening machine, and then the modules corresponding to areas a and c step by step tighten and align the two ends of the aluminum profiles, so that the multiple aluminum profiles keep a straight state synchronously.

[0016] According to one embodiment of the present invention, the rotating bracket has an L-shaped structure, and a mounting plate is fixed to its horizontal support arm away from the rotation axis. A floating bracket is movably mounted on the mounting plate via a guide rod, and a spring is sleeved on the guide rod between the floating bracket and the mounting plate. A guide roller frame with guide rollers is fixed to the top of the floating bracket, a heater is fixed inside the floating bracket, and a pressure sensor is provided between the floating bracket and the mounting plate.

[0017] According to one embodiment of the present invention, both the pressure sensor and the heater are electrically connected to the equipment control system. The pressure value detected by the pressure sensor in real time is used to provide feedback on the tensile uniformity of various parts of the aluminum profile. The control system locates the tensile defect parts of the aluminum profile according to the pressure value difference and starts the heater of the corresponding part for local heating, which works in conjunction with the straightening machine to complete the tensile defect correction.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] 1. This invention sets up multiple pre-adjustment modules between the second and third conveyor lines, which can pre-straighten aluminum profiles with different bending shapes online. By step-by-step lifting of the pre-adjustment modules, the force transmission between the bent part and the conveyor line is cut off. The traction force of the conveyor line is used to restore the aluminum profile to a straight state without manual intervention, ensuring that the aluminum profile can accurately enter the subsequent stretching station, which greatly improves the continuity of production and processing efficiency.

[0020] 2. This invention, through the staggered arrangement of the first and second centering modules, can perform multi-segment precise centering and positioning of aluminum profiles. For the working condition of simultaneous stretching of multiple aluminum profiles, the bending stress of the aluminum profiles can be released step by step by tightening and centering in different areas, so that multiple aluminum profiles can be kept in a straight state and aligned with the straightening machine at the same time. This effectively avoids the problems of uneven force and inconsistent stretching quality when multiple aluminum profiles are stretched at the same time, and significantly improves the accuracy of aluminum profile stretching and straightening and the uniformity of finished products.

[0021] 3. In this solution, the present invention integrates a pressure sensor and a heater within the limiting component, which can detect the stretching uniformity of various parts of the aluminum profile in real time during the stretching process. By accurately identifying stretching defects through pressure value differences, and by using the heater to locally heat and correct the defective parts, the online detection and closed-loop control of stretching quality is realized, which further improves the finished product qualification rate, reduces the generation of defective waste, realizes the efficient utilization of raw materials, and significantly reduces production costs.

[0022] 4. This invention achieves continuous automated conveying of the entire process of aluminum profile cutting, pre-straightening, cooling and buffering, stretching and straightening, finished product transfer and unloading through a six-segment staggered conveyor line. The process is smoothly connected and can adapt to the continuous processing needs of single and multiple aluminum profiles. The equipment has strong compatibility and high production efficiency. Attached Figure Description

[0023] Figure 1 This is an overall structural diagram of the conveying device used for aluminum profile processing in Embodiment 1 of the present invention;

[0024] Figure 2 This is a structural diagram of the pre-adjustment module in this invention;

[0025] Figure 3 This is a diagram showing the working state of the four pre-adjustment modules in this invention for pre-straightening the upward-bending aluminum profile in the middle.

[0026] Figure 4 This is a diagram showing the working state of the four pre-adjustment modules in this invention for pre-straightening a bent aluminum profile on one side.

[0027] Figure 5 This is a partial structural diagram of the first centering module, the second centering module, and the corresponding conveyor line in this invention;

[0028] Figure 6 This is an overall structural diagram of the first centering module in this invention;

[0029] Figure 7 for Figure 6 Enlarged structural diagram at point A in the middle;

[0030] Figure 8 This is a schematic diagram of the non-working and working states of the first limiting component in this invention;

[0031] Figure 9 This is an overall structural diagram of the second centering module in this invention;

[0032] Figure 10 This is a schematic diagram of the workstation partitioning for the regional centering and positioning of multiple aluminum profiles in this invention;

[0033] Figure 11 This is a split structural diagram of the first limiting component in Embodiment 2 of the present invention.

[0034] Figure label:

[0035] 100. First conveyor line; 200. Second conveyor line; 300. Third conveyor line; 400. Fourth conveyor line; 500. Fifth conveyor line; 600. Sixth conveyor line;

[0036] 700. First centering module; 701. First track seat; 702. First adjusting arm; 7021. Mounting plate; 703. First column; 704. First cylinder; 705. First limiting assembly; 7051. Rotating bracket; 70511. Rotating shaft; 7052. Mounting hole plate; 70521. Guide hole; 7053. Pressure sensor; 7054. Floating bracket; 7055. Heater; 7056. Guide roller frame; 7057. Guide rod; 7058. Spring; 7059. Motor;

[0037] 800. Second centering module; 801. Second track seat; 802. Second adjusting arm; 803. Second column; 804. Second cylinder; 805. Second limit assembly;

[0038] 900. Pre-adjustment module; 901. Support frame; 902. Support bracket; 903. Lifting drive cylinder;

[0039] 91. First pre-adjustment module; 92. Second pre-adjustment module; 93. Third pre-adjustment module; 94. Fourth pre-adjustment module. Detailed Implementation

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

[0041] Example 1: This example provides a conveying device for aluminum profile processing, such as... Figure 1 As shown, the system includes a first conveyor line 100, a second conveyor line 200, a third conveyor line 300, a fourth conveyor line 400, a fifth conveyor line 500, and a sixth conveyor line 600 arranged side-by-side and in a staggered manner. The second conveyor line 200, the third conveyor line 300, the fourth conveyor line 400, and the fifth conveyor line 500 all employ a belt conveyor structure driven by a variable frequency motor, while the first conveyor line 100 and the sixth conveyor line 600 employ a roller conveyor structure driven by a variable frequency motor. The adjacent conveyor lines are staggered along the aluminum profile conveying direction, allowing the aluminum profile to transition smoothly and continuously between adjacent conveyor lines without the risk of conveying jams, deviations, or drops.

[0042] The process connections and functions of each conveyor line are as follows: After being cut to length, the aluminum profiles are traction-conveyed by a double traction machine to the first conveyor line 100. The inlet end of the second conveyor line 200 connects to the outlet end of the first conveyor line 100, serving to receive the aluminum profiles output from the first conveyor line 100 and transfer them towards the third conveyor line 300. The third conveyor line 300 has a longer conveying stroke than the other conveyor lines. On one hand, it receives the aluminum profiles output from the second conveyor line 200 and tractions them to the fourth conveyor line 400. On the other hand, it can realize online buffering and waiting of multiple aluminum profiles, while utilizing the long stroke... The conveying process completes the online air cooling of the aluminum profiles; the discharge end of the fourth conveyor line 400 is connected to the stretching station of the straightening machine, which is used to accurately convey the aluminum profiles to the straightening machine and make the aluminum profiles briefly stop at the stretching station to complete the stretching and straightening operation; the feed end of the fifth conveyor line 500 is connected to the discharge end of the fourth conveyor line 400, which is used to receive the stretched and straightened aluminum profiles and complete the buffer accumulation of multiple finished aluminum profiles; the feed end of the sixth conveyor line 600 is connected to the discharge end of the fifth conveyor line 500, which is used to continuously convey the buffered finished aluminum profiles to the next process or unloading station.

[0043] Since the aluminum profiles output from the first conveyor line 100 are mostly of long length, they are prone to bending and deformation during the conveying process due to their own weight and uneven traction force. When the bending degree of the aluminum profile is too large, it will deviate from the working range of the straightening machine after entering the fourth conveyor line 400, resulting in the inability to complete precise stretching and straightening. Therefore, in this embodiment, a pre-adjustment module 900 is set between the second conveyor line 200 and the third conveyor line 300 to pre-adjust the posture of each aluminum profile entering the third conveyor line 300, and to perform online pre-straightening of the bent aluminum profile.

[0044] Specifically, the pre-adjustment module 900 is arranged between the discharge end of the second conveyor line 200 and the inlet end of the third conveyor line 300 along the conveying direction of the aluminum profile. Simultaneously, along the length of the first conveyor line 100 (i.e., the axial direction of the aluminum profile), pre-adjustment modules 900 are also installed at the middle and both ends of the aluminum profile conveying path. For example... Figure 2 As shown, the pre-adjustment module 900 includes a support frame 901, a support bracket 902, and a lifting drive cylinder 903. The support frame 901 is fixedly installed on the frame of the conveyor line by bolts. A lifting seat is movably installed on the top platform of the support frame 901. The bottom of the lifting seat is slidably connected to the platform of the support frame 901 through two vertically arranged guide rods to ensure the verticality and operational stability of the lifting seat during the lifting process. The support bracket 902 has an L-shaped structure. The horizontal support of the support bracket 902 is fixedly installed on the top surface of the lifting seat by bolts. Multiple guide rollers are rotatably installed on the horizontal support along the conveying direction of the aluminum profile. The top surface of the guide rollers is flush with the conveying surface of the second conveyor line 200 to support the aluminum profile without scratching it. The lifting drive cylinder 903 is fixedly installed on the bottom of the platform of the support frame 901 through a flange. The piston rod of the lifting drive cylinder 903 extends vertically upward through the platform of the support frame 901 and is fixedly connected to the bottom end of the lifting seat to drive the lifting seat to drive the support bracket 902 to complete the vertical lifting action.

[0045] like Figure 3 As shown, in this embodiment, four sets of pre-adjustment modules 900 are equally spaced along the axial direction of the aluminum profile, namely the first pre-adjustment module 91, the second pre-adjustment module 92, the third pre-adjustment module 93 and the fourth pre-adjustment module 94. The first pre-adjustment module 91 and the fourth pre-adjustment module 94 are respectively located at both ends of the aluminum profile conveying path, and the second pre-adjustment module 92 and the third pre-adjustment module 93 are respectively located in the middle of the aluminum profile conveying path.

[0046] For the case where the aluminum profile bends upwards in the middle, the working process of the pre-adjustment module 900 is as follows: When the second conveyor line 200 starts to receive the aluminum profile and convey it to the third conveyor line 300, the lifting drive cylinders 903 of the four pre-adjustment modules 900 synchronously drive the lifting seats to rise, thereby raising their respective support frames 902 to the preset straightening height; as the second conveyor line 200 continues to convey, the protruding part in the middle of the bent aluminum profile first contacts the guide rollers on the support frames 902 of the second pre-adjustment module 92 and the third pre-adjustment module 93 located in the middle, and then the two ends of the aluminum profile contact the support frames 902 of the first pre-adjustment module 91 and the fourth pre-adjustment module 94 located at the ends; during this process, The second pre-adjustment module 92 and the third pre-adjustment module 93 have first lifted the middle curved section of the aluminum profile upwards, cutting off the force transmission between the middle of the aluminum profile and the second conveyor line 200. However, the two ends of the aluminum profile are still in contact with the conveyor rollers of the second conveyor line 200. The traction force continuously output by the second conveyor line 200 generates an axial force that pushes the two ends of the aluminum profile forward, causing the two ends of the aluminum profile to extend axially under the action of the thrust, and driving the bent aluminum profile to return to a straight state. After the aluminum profile has completed pre-straightening, the lifting drive cylinders 903 of the four sets of pre-adjustment modules 900 synchronously drive the lifting seat to descend, and place the straight aluminum profile smoothly at the feeding end of the third conveyor line 300, completing the attitude pre-adjustment of the aluminum profile.

[0047] For applications involving unilateral bending of aluminum profiles, such as Figure 4 As shown, the working process of the pre-adjustment module 900 is as follows: During the process of conveying the single-sided bent aluminum profile from the second conveyor line 200 to the third conveyor line 300, the first pre-adjustment module 91 located on the bent side first contacts the bent protrusion of the aluminum profile. Then, the first pre-adjustment module 91, the second pre-adjustment module 92, and the third pre-adjustment module 93 are lifted in sequence, lifting the bent side of the aluminum profile as a whole, cutting off the force transmission between the bent side of the aluminum profile and the second conveyor line 200. Meanwhile, the other side of the aluminum profile is still in contact with the conveying roller surface of the second conveyor line 200. The continuous traction force of the second conveyor line 200 pushes the straight side of the aluminum profile to continue to be conveyed forward, so that the bent section of the aluminum profile is reset to a straight state under the action of axial thrust, thus completing the pre-straightening of the single-sided bent aluminum profile.

[0048] The pre-adjustment module 900 can pre-straighten aluminum profiles with different bending shapes online, so that the aluminum profiles maintain a straight posture before entering the third conveyor line 300, providing a basis for subsequent centering and stretching straightening operations. No manual adjustment is required, which greatly improves the degree of production automation and processing efficiency.

[0049] like Figure 5As shown, a first centering module 700 is provided at the gap between the conveyor rollers of the third conveyor line 300, and a second centering module 800 is provided at the gap between the conveyor rollers of the fourth conveyor line 400. The first centering module 700 and the second centering module 800 adopt the same structural design, and the first centering module 700 and the second centering module 800 are staggered along the axial direction of the aluminum profile to avoid mechanical interference during the centering process.

[0050] like Figure 6 As shown, the first centering module 700 includes a first track seat 701, a first adjusting arm 702, a first column 703, a first cylinder 704, and a first limiting assembly 705. The first track seat 701 is bolted to the frame of the third conveyor line 300, and the length direction of the first track seat 701 is perpendicular to the conveying direction of the aluminum profile. A linear slide rail is fixedly installed on the top surface of the first track seat 701. A slider adapted to the linear slide rail is fixedly installed at one bottom end of the first adjusting arm 702. The first adjusting arm 702 is slidably connected to the linear slide rail through the slider and can reciprocate along the length direction of the first track seat 701. A first limiting assembly is installed at the end of the first adjusting arm 702 away from the slider. The first limiting component 705 can rotate around the end of the first adjusting arm 702 to achieve contact and limiting with the side wall of the aluminum profile; the first column 703 is fixedly installed on one side of the first track seat 701, and the top of the first column 703 is fixedly installed with a first cylinder 704. The piston rod of the first cylinder 704 is arranged parallel to the first track seat 701, and the end of the piston rod of the first cylinder 704 is fixedly connected to the side wall of the first adjusting arm 702. By extending and retracting the piston rod of the first cylinder 704, the first adjusting arm 702 can be pulled to move back and forth along the first track seat 701, thereby adjusting the horizontal position of the first limiting component 705 and realizing the centering and positioning of aluminum profiles with different cross-sectional specifications.

[0051] like Figure 9 As shown, the second centering module 800 includes a second track seat 801, a second adjusting arm 802, a second column 803, a second cylinder 804, and a second limiting component 805, which correspond one-to-one with the components of the first centering module 700. Its structure, connection method, and working principle are completely consistent with those of the first centering module 700, and will not be described in detail here.

[0052] Specifically, such as Figure 7 , Figure 8As shown, the first adjusting arm 702 has two parallel and spaced mounting plates 7021 fixedly installed at one end facing the aluminum profile. The first limiting assembly 705 includes a rotating bracket 7051 and a drive motor 7059. A rotating shaft 70511 passes through the two mounting plates 7021. The bottom end of the rotating bracket 7051 is rotatably mounted between the two mounting plates 7021 through the rotating shaft 70511, so that the rotating bracket 7051 can swing back and forth around the axis of the rotating shaft 70511. The drive motor 7059 is fixedly mounted on one of the mounting plates 7021 through a flange. The output shaft of the drive motor 7059 is connected to the rotating shaft 70511 through a coupling, and is used to drive the rotating bracket 7051 to complete the flipping action.

[0053] The flipping logic of the first limiting component 705 and the second limiting component 805 is as follows: When the aluminum profile has not completed its initial alignment with the straightening machines at both ends, both the first limiting component 705 and the second limiting component 805 remain in a downward flipped non-working state (e.g., Figure 8 The first limiting component 705 at the top center (in its current state) prevents interference with the conveying of the aluminum profile; after the aluminum profile is conveyed by the fourth conveyor line 400 and initially aligned with the straightening machine, the drive motor 7059 drives the rotating bracket 7051 to rotate upwards to the working state (as shown in the image). Figure 8 The first limiting component 705 (located in the lower middle position) aligns the working surface of the rotating bracket 7051 with the side wall of the aluminum profile for subsequent alignment operations. To avoid interference, the first adjusting arm 702 and the second adjusting arm 802 need to be positioned below the belt surface of each conveyor line.

[0054] In this embodiment, for the high-efficiency production process of simultaneously stretching and straightening multiple aluminum profiles, a regional centering and positioning method is adopted, such as... Figure 10As shown, the working area between the two straightening machines is divided into area a, area b and area c along the axial direction of the aluminum profile. Area b is the middle section of the aluminum profile, while areas a and c are located at both ends of the aluminum profile. The zonal alignment process is as follows: First, multiple aluminum profiles are conveyed to the stretching station via the fourth conveyor line 400, achieving initial alignment between the aluminum profiles and the straightening machines at both ends. Then, the first limiting component 705 and the second limiting component 805 corresponding to zone b are activated. The first cylinder 704 and the second cylinder 804 drive the limiting components towards the aluminum profiles, tightening the middle sections of the multiple aluminum profiles and precisely aligning them with the working center of the straightening machine, releasing the bending stress in the middle sections of the aluminum profiles. Next, the first limiting component 705 and the second limiting component 805 corresponding to zones a and c are activated step-by-step, tightening the two ends of the aluminum profiles and aligning them with the working center of the straightening machine. This step-by-step alignment ensures that the multiple aluminum profiles are tightly fitted together, and all aluminum profiles maintain a straight initial state, precisely aligned with the straightening machine. After alignment, the straightening machine clamps both ends of the aluminum profiles for synchronous stretching, effectively avoiding uneven stretching stress and inconsistent stretching quality caused by differences in initial curvature among the multiple aluminum profiles.

[0055] After the stretching and straightening is completed, the fourth conveyor line 400 transports the finished aluminum profiles to the fifth conveyor line 500 for buffering. After a preset number of finished aluminum profiles have accumulated on the fifth conveyor line 500, the fifth conveyor line 500 transports the aluminum profiles in batches to the sixth conveyor line 600. Finally, the sixth conveyor line 600 transports the finished aluminum profiles to the next process or unloading station, completing the entire aluminum profile conveying and processing process.

[0056] Example 2: This example provides another conveying device for aluminum profile processing. Its main structure is exactly the same as that of Example 1. The difference is that: in this example, a real-time tension quality detection and correction structure is added to the first limiting component 705 and the second limiting component 805 to solve the technical problem that the tension quality of the aluminum profile cannot be sensed in real time and the tension defects cannot be accurately corrected during the tension straightening process.

[0057] Specifically, such as Figure 11As shown, the rotating bracket 7051 has an L-shaped structure. A mounting plate 7052 is fixedly installed on the horizontal support arm of the rotating bracket 7051 away from the rotation axis 70511. A floating bracket 7054 is movably installed on the mounting plate 7052. Four vertically arranged guide rods 7057 are fixedly installed on one end face of the floating bracket 7054 facing the mounting plate 7052. The mounting plate 7052 has guide holes 70521 that correspond one-to-one with the four guide rods 7057. The guide rods 7057 movably pass through the corresponding guide holes 70521, allowing the floating bracket to... The bracket 7054 can reciprocate relative to the mounting plate 7052 along the axial direction of the guide hole 70521; each guide rod 7057 is fitted with a spring 7058, which is located between the floating bracket 7054 and the mounting plate 7052, providing elastic restoring force for the floating bracket 7054; the end of the guide rod 7057 away from the floating bracket 7054 is a T-shaped end, the outer diameter of which is larger than the diameter of the guide hole 70521, which is used to limit the movement stroke of the floating bracket 7054 and prevent the guide rod 7057 from coming out of the guide hole 70521.

[0058] A guide roller frame 7056 is fixedly installed at the top of the floating bracket 7054. Multiple parallel guide rollers are rotatably mounted on the guide roller frame 7056 along the axial direction of the aluminum profile. The outer circumferential surface of the guide rollers can roll into contact with the side wall of the aluminum profile to avoid scratching the surface of the aluminum profile. The floating bracket 7054 has a box-shaped frame structure. A heater 7055 is fixedly installed in its internal cavity. The heater 7055 uses multiple independently controlled electric heating sources. The heating end of the electric heating source is set towards the guide roller frame 7056, which can accurately and locally heat a designated part of the aluminum profile. A pressure sensor 7053 is set between the floating bracket 7054 and the mounting hole plate 7052. One end of the pressure sensor 7053 is fixedly connected to the end face of the mounting hole plate 7052, and the sensing end of the pressure sensor 7053 is in contact with the end face of the floating bracket 7054 to detect the pressure value of the floating bracket 7054 in real time.

[0059] In this embodiment, the internal structure of the second limiting component 805 is completely the same as that of the first limiting component 705, and will not be described again here.

[0060] The real-time detection and correction process for tensile quality in this embodiment is as follows: After the aluminum profile is precisely aligned with the straightening machine under the extrusion of the first limiting component 705 and the second limiting component 805, the straightening machine first performs a pre-stretching operation on the aluminum profile. After the pre-stretching is completed, the first cylinder 704 and the second cylinder 804 respectively drive the first limiting component 705 and the second limiting component 805 to move the same preset distance towards the aluminum profile, so that the two side walls of the aluminum profile contact the guide rollers of the corresponding first limiting component 705 and second limiting component 805. The reaction force of the aluminum profile on the guide rollers pushes the floating bracket 7054 towards the mounting plate 7052. The material moves and presses against the pressure sensor 7053. The pressure sensor 7053 detects and feeds back the pressure value to the equipment control system in real time. If the stretching uniformity of each part of the aluminum profile is consistent after pre-stretching and its cross-sectional dimensions are consistent, the pressure values ​​detected by the pressure sensor 7053 for each part will be basically consistent. If a part of the aluminum profile is stretched unevenly and has a stretching defect with a larger cross-sectional dimension, the pressure value detected by the pressure sensor 7053 for that part will be significantly greater than the pressure values ​​for other parts. The control system can then accurately locate the stretching defect of the aluminum profile based on the pressure value difference and determine that the part needs to be stretched and corrected a second time.

[0061] Subsequently, the control system activates the heater 7055 corresponding to the defective part to locally heat the defective part of the aluminum profile, so that the temperature of the aluminum profile in that part reaches the process temperature for stretching and straightening. Then, the aluminum profile is stretched and straightened a second time by the straightening machine to eliminate the stretching defect. After the straightening is completed, the pressure value is detected again by the pressure sensor 7053. After confirming that the stretching uniformity of each part of the aluminum profile meets the process requirements, the entire stretching and straightening operation is completed.

[0062] The above structure enables online real-time detection and closed-loop correction of the stretching and straightening quality of aluminum profiles, significantly improving the finished product qualification rate of aluminum profiles, reducing the generation of defective waste, realizing the efficient utilization of raw materials, and reducing production and processing costs.

[0063] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0064] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

Claims

1. A conveying device for processing of aluminium profiles, characterized in that, include: The first conveyor line (100), the second conveyor line (200), the third conveyor line (300), the fourth conveyor line (400), the fifth conveyor line (500) and the sixth conveyor line (600) are sequentially connected, arranged side by side and in an alternating manner along the aluminum profile conveying direction. Between the discharge end of the second conveyor line (200) and the feed end of the third conveyor line (300), multiple sets of pre-adjustment modules (900) are spaced apart along the axial direction of the aluminum profile. The pre-adjustment module (900) includes: Support frame (901) fixed to the rack; A lifting seat that is slidably connected to the support frame (901) vertically; A support frame (902) with guide rollers, the guide rollers being flush with the conveying surface of the second conveyor line (200); A lifting drive cylinder (903) drives the lifting seat to vertically lift the support frame (902); The pre-adjustment module (900) cuts off the force transmission between the bent part of the aluminum profile and the conveyor line by lifting it in stages, and straightens the bent aluminum profile in conjunction with the conveyor line to correct its conveying posture. At least one set of first centering modules (700) is provided at the gap of the conveyor rollers of the third conveyor line (300), and at least one set of second centering modules (800) is provided at the gap of the conveyor rollers of the fourth conveyor line (400). The first centering module (700) and the second centering module (800) cooperate to tighten and center multiple aluminum profiles in different areas. The working area between the two straightening machines is divided into the middle section b area and the two ends a area and c area along the axis of the aluminum profile. During the centering operation, the middle section of multiple aluminum profiles is first tightened and aligned with the working center of the straightening machine through the first centering module (700) and the second centering module (800) corresponding to the b area. Then, the two ends of the aluminum profiles are tightened and aligned step by step through the modules corresponding to the a area and c area, so that multiple aluminum profiles keep a straight state synchronously. Both the first centering module (700) and the second centering module (800) include a limiting component, on which a pressure sensor (7053) and a heater (7055) are provided. The pressure sensor (7053) and heater (7055) are both electrically connected to the equipment control system. The pressure value detected by the pressure sensor (7053) in real time is used to provide feedback on the tensile uniformity of each part of the aluminum profile. The control system locates the tensile defect part of the aluminum profile according to the pressure value difference and starts the heater (7055) of the corresponding part for local heating, which works with the straightening machine to complete the tensile defect correction.

2. The conveying device for aluminum profile machining according to claim 1, characterized in that, The pre-adjustment module (900) is provided in four sets at equal intervals along the axial direction of the aluminum profile, namely the first pre-adjustment module (91), the second pre-adjustment module (92), the third pre-adjustment module (93) and the fourth pre-adjustment module (94). The first pre-adjustment module (91) and the fourth pre-adjustment module (94) are respectively located at both ends of the aluminum profile conveying path, and the second pre-adjustment module (92) and the third pre-adjustment module (93) are respectively located in the middle of the aluminum profile conveying path.

3. The conveying device for aluminum profile machining according to claim 2, characterized in that the four groups of The pre-adjustment module (900) is configured to be lifted in stages to achieve the following straightening modes: For aluminum profiles that bend upwards in the middle, four sets of pre-adjustment modules are lifted simultaneously. The second pre-adjustment module (92) and the third pre-adjustment module (93) in the middle support and lift the bent section first, and cooperate with the second conveyor line (200) to complete the pre-straightening by applying axial thrust to both ends of the aluminum profile. For aluminum profiles that are bent on one side, the pre-adjustment module on the bent side is lifted first and then drives the other modules to be lifted step by step, lifting the bent side, and cooperating with the traction force of the second conveyor line (200) on the straight side to complete the pre-straightening.

4. The conveying device for aluminum profile machining according to claim 1, characterized in that, The bottom of the lifting seat is slidably connected to the platform of the support frame (901) in the vertical plane via at least two vertically arranged guide rods; The support frame (902) has an L-shaped structure, with its horizontal support fixed to the top surface of the lifting seat, and the guide rollers rotatably mounted on the horizontal support along the aluminum profile conveying direction; The lifting drive cylinder (903) is fixed to the bottom of the support frame (901) platform, and its piston rod extends vertically upward through the support frame (901) platform and is fixedly connected to the bottom end of the lifting seat.

5. The conveying device for aluminum profile machining according to claim 1, characterized in that, The first centering module (700) and the second centering module (800) are staggered along the axial direction of the aluminum profile, and both adopt the same structure.

6. A conveying device for aluminum profile processing according to claim 5, characterized in that, Both the first centering module (700) and the second centering module (800) include a track base, an adjusting arm, a column, and a cylinder; The track seat is fixedly installed on the frame of the corresponding conveyor line, and its length direction is perpendicular to the conveying direction of the aluminum profile. A linear slide rail is fixed on the top surface of the track seat. The bottom of the adjusting arm is slidably connected to the track seat through a slider adapted to the linear slide rail. A limiting component that can rotate around the end of the adjusting arm facing the aluminum profile is installed. The column is fixed to one side of the track seat. The cylinder piston rod fixed at the top of the column is arranged parallel to the track seat, and the end of the piston rod is fixedly connected to the side wall of the adjusting arm, which is used to drive the adjusting arm to drive the limiting component to complete the centering and positioning of the aluminum profile.

7. A conveying device for aluminum profile processing according to claim 6, characterized in that, Two parallel and spaced mounting plates (7021) are fixed to one end of the adjusting arm facing the aluminum profile, and a rotating shaft (70511) passes between the two mounting plates (7021). The limiting component includes a rotating bracket (7051) and a drive motor (7059). The bottom end of the rotating bracket (7051) is rotatably mounted between two mounting plates (7021) via a rotating shaft (70511). The drive motor (7059) is fixed to one of the mounting plates (7021), and its output shaft is connected to the rotating shaft (70511) for transmission, and is used to drive the rotating bracket (7051) to reciprocate and rotate to switch between non-working and working states.

8. A conveying device for aluminum profile processing according to claim 7, characterized in that, The rotating bracket (7051) has an L-shaped structure. A mounting plate (7052) is fixed to the horizontal support arm away from the rotating shaft (70511). A floating bracket (7054) is movably mounted on the mounting plate (7052) via a guide rod (7057). A spring (7058) is sleeved on the guide rod (7057) between the floating bracket (7054) and the mounting plate (7052). A guide roller frame (7056) with guide rollers is fixed to the top of the floating bracket (7054). A heater (7055) is fixed inside the floating bracket (7054). A pressure sensor (7053) is provided between the floating bracket (7054) and the mounting plate (7052).

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