An on-line temperature control device for an aluminum alloy profile extrusion die

Abstract

The application discloses an aluminum alloy profile extrusion die online temperature control device, and relates to the technical field of aluminum alloy profile extrusion devices.The device comprises a base, a movable workbench, a die conveying device, heating components and a temperature control assembly.The aluminum alloy profile extrusion die online temperature control device realizes a full-automatic process of heating and heat preservation of the movable die, shortens the overall time of movable die temperature control and die changing, improves the safety and continuity of the production process, ensures uniform heating of the movable die through the cooperation of the heat preservation cover and the heating components and auxiliary heating components, and realizes real-time feedback regulation and control of the temperature detection components and the PLC control system, so that the temperature of the movable die can be stably maintained within the range required by the process, effectively avoids profile surface defects and size precision deviations caused by temperature fluctuations of the movable die, and significantly improves the product quality consistency of the aluminum alloy profile.

Description

Technical Field

[0001] This application belongs to the field of aluminum alloy profile extrusion equipment, and particularly relates to an online temperature control device for aluminum alloy profile extrusion dies. Background Technology

[0002] In the aluminum alloy profile extrusion production field, the multi-die cyclic operation mode is the core method to improve production efficiency. This involves alternating the use of multiple dies in the extrusion process to shorten the non-extrusion waiting time of a single die. However, during process flow, standby waiting, and die changing, the die temperature will continuously drop due to factors such as environmental heat dissipation and contact with low-temperature components. When the die temperature falls below the process critical value, it will not only lead to quality defects such as surface cracks, oxidation color differences, and out-of-tolerance dimensional accuracy in the extruded profiles, but may also cause a surge in extrusion resistance due to excessive temperature difference between the die and the profile blank, resulting in equipment overload or extrusion process interruption, seriously restricting production continuity.

[0003] To alleviate the problem of die cooling, existing solutions in the industry have significant limitations. One approach is the single-die cycle method: a single heated die is used continuously for 3-4 extrusion cycles, then cooled and returned to the heating furnace for reheating, while a new high-temperature die is used in conjunction. While this method avoids temperature fluctuations during the use of a single die, only one die participates in production, and the reheating and replacement processes consume a significant amount of time, resulting in low overall extrusion efficiency and failing to meet the demands of large-scale, high-efficiency production. Another approach is to increase the initial heating temperature: for multi-die cycle scenarios, this involves increasing the initial heating temperature of the die and shortening the working cycle time of a single die to compensate for cooling losses. However, this solution is only suitable for short-cycle extrusion processes. For complex profile production with long extrusion times and long die standby times, the cooling compensation effect is limited, and excessively high initial temperatures can accelerate die thermal fatigue, shorten die life, and increase energy consumption, resulting in poor universality. Summary of the Invention

[0004] To address some or all of the technical problems existing in the prior art, this application provides an online temperature control device for aluminum alloy profile extrusion dies.

[0005] This application provides an online temperature control device for aluminum alloy profile extrusion dies, including a base, a movable worktable, a die conveying device, heating elements, and a temperature control component. The movable worktable is disposed above the base and slides with the base via a drive device, enabling the movable die to move linearly in a preset direction. The die conveying device is disposed at one end of the movable worktable and is used for bidirectional conveying of the movable die in both horizontal and vertical directions, cooperating with the movable worktable to facilitate the transfer of the movable die between the two. The heating elements are disposed on the base and heat the movable die when it is transferred to the movable worktable. The temperature control component is disposed corresponding to the heating elements, can move vertically, and can cover the movable die to achieve thermal insulation.

[0006] Preferably, a fixed bracket is fixedly connected to one end of the base, and the fixed bracket is located between the movable worktable and the mold conveying device.

[0007] Preferably, the temperature control component includes a heat insulation cover and an actuator. The actuator is mounted on the fixed support, and its output end is connected to the heat insulation cover to guide the heat insulation cover to achieve lifting and lowering movements.

[0008] Preferably, the heat insulation cover is filled with heat insulation material, and a temperature detection element is provided inside the heat insulation cover to monitor the temperature environment inside the cover in real time. Guide structures are provided on both sides of the heat insulation cover, and the heat insulation cover is slidably connected to the fixed bracket through the guide structures.

[0009] Preferably, the guide structure consists of two sets of spaced guide bars, with the two sets of guide bars located on both sides of the vertical rod of the fixed bracket.

[0010] Preferably, the actuator includes a wire rope, a pulley block, and a lifting cylinder. A lifting eye screw is fixed to the upper end of the insulation cover. The pulley block is disposed on the upper end of the fixed bracket. The wire rope is wound around the pulley block. The lifting cylinder is fixed to the side of the fixed bracket. One end of the wire rope is fixedly connected to the lifting eye screw, and the other end of the wire rope is connected to the output end of the lifting cylinder. The pulley block is used to guide the wire rope to pull the insulation cover vertically.

[0011] Preferably, the pulley block includes a first pulley and a second pulley. The first pulley is fixed above the fixed bracket at one end near the lifting cylinder, and the second pulley is fixed at the middle position above the fixed bracket. The wire rope passes over the top of the second pulley from the top of the first pulley.

[0012] Preferably, the mold conveying device includes a main body that can move vertically along the base and a placement worktable. The placement worktable is slidably connected to the upper end of the main body of the mold conveying device and is used to support and position the movable mold.

[0013] Preferably, the driving device for moving the movable worktable includes two sets of driving components respectively disposed on both sides of the base. Each driving component includes a guide cylinder seat, a guide rod, and a driving unit. The guide rod is fixed on the base and horizontally arranged along the length direction of the base. The guide cylinder seat is slidably connected to the guide rod and fixedly connected to the movable worktable. The fixed end of the driving unit is fixed on the base, and the output end of the driving unit is fixedly connected to the guide cylinder seat. The driving unit can push the guide cylinder seat to move horizontally along the guide rod. Two sets of rollers are fixed at one end of the movable worktable. The rollers are used to receive and support the movable mold.

[0014] Preferably, multiple sets of surrounding plates are fixed on the base, and the multiple sets of surrounding plates are arranged in a closed shape on the upper surface of the base, with the heating element located within the closed area enclosed by the multiple sets of surrounding plates.

[0015] The online temperature control device for aluminum alloy profile extrusion dies in this application has the following advantages and positive effects: This system achieves a fully automated process for heating and maintaining the temperature of movable molds, shortening the overall time for temperature control and mold changing, and improving the safety and continuity of the production process. Through the insulation cover and the coordinated operation of heating elements and auxiliary heating components, uniform heating of the movable mold is ensured. Real-time feedback and control by temperature detection elements and the PLC control system ensure that the temperature of the movable mold is stably maintained within the required process range, effectively avoiding surface defects and dimensional accuracy deviations in the profiles caused by temperature fluctuations in the movable mold, and significantly improving the product quality consistency of aluminum alloy profiles. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for further understanding of the embodiments of this application and constitute a part of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings: Figure 1 This is a schematic diagram of the online temperature control device for aluminum alloy profile extrusion dies of this application; Figure 2 This is a schematic diagram of the installation position of the pulley block in this application; Figure 3This is a schematic diagram of the guide device and the heat insulation cover of this application in cooperation; Figure 4 This is a schematic diagram of the mobile worktable and base of this application in conjunction; Figure 5 This is a schematic diagram of the guide cylinder seat and guide rod of this application in cooperation; Figure 6 This is a schematic diagram of the location of the arc-shaped bottom groove in this application.

[0017] Explanation of reference numerals in the attached figures: 100-Base, 110-Fixed bracket, 120-Enclosure, 200-Mold conveying device, 210-Placement workbench, 300-Moving workbench, 310-Guide cylinder seat, 320-Guide rod, 330-Drive unit, 340-Idler roller, 400-Heating element, 500-Insulation cover, 510-Lifting eye screw, 520-Guide strip, 530-Arc-shaped bottom groove, 600-Actuator, 610-Pulley block, 611-First pulley, 612-Second pulley, 620-Wire rope, 630-Lifting cylinder, 700-Moving mold. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0019] like Figure 1 and Figure 2 As shown, the online temperature control device for aluminum alloy profile extrusion dies of this application includes a base 100, a die conveying device 200, a movable worktable 300, a heating element 400, and a temperature control component. The movable worktable 300 is disposed above the base 100 and slides with the base 100 through a drive device, which can drive the movable die 700 to move linearly in a preset direction. The heating element 400 is disposed on the base 100 and heats the movable die 700 when it is handed over to the movable worktable 300. The temperature control component is disposed corresponding to the heating element 400, can move vertically, and can cover the movable die 700 to achieve thermal insulation.

[0020] A fixed bracket 110 is fixedly connected to one end of the base 100. The fixed bracket 110 is located between the movable worktable 300 and the mold conveying device 200.

[0021] like Figure 3As shown, specifically, the temperature control component includes an insulation cover 500 and an actuator 600. The actuator 600 is mounted on a fixed bracket 110, and its output end is connected to the insulation cover 500 to guide the insulation cover 500 to achieve lifting and lowering movements. The actuator 600 includes a wire rope 620, a pulley block 610, and a lifting cylinder 630. A lifting eye bolt 510 is fixed to the upper end of the insulation cover 500. The pulley block 610 is mounted on the upper end of the fixed bracket 110, and the wire rope 620 is wound around the pulley block 610. The lifting cylinder 630 is fixed to the side of the fixed bracket 110. One end of the wire rope 620 is fixedly connected to the lifting eye bolt 510, and the other end of the wire rope 620 is connected to the output end of the lifting cylinder 630. The pulley block 610 is used to guide the wire rope 620 to pull the insulation cover 500 vertically. The pulley block 610 includes a first pulley 611 and a second pulley 612. The first pulley 611 is fixed above the fixed bracket 110 at one end near the lifting cylinder 630. The second pulley 612 is fixed at the middle position above the fixed bracket 110. The wire rope 620 passes over the second pulley 612 from above the first pulley 611.

[0022] Preferably, auxiliary heating elements can be provided on the top and side walls inside the heat insulation cover 500 to cooperate with the heating element 400 to achieve all-round thermal radiation heating, so as to achieve uniform heating of the movable mold 700.

[0023] When heating is required, the lifting cylinder 630 actuates, driving the insulation cover 500 to descend vertically via the cooperation of the wire rope 620 and the pulley block 610, thus sealing the movable mold 700. After heating is completed, the lifting cylinder 630 resets, causing the insulation cover 500 to rise and open, releasing the movable mold 700. This component provides precise guidance and smooth lifting, enabling rapid opening and closing of the insulation cover 500, and offers excellent heat insulation, providing a good environment for precise temperature control.

[0024] Furthermore, guide structures are provided on both sides of the insulation cover 500, and the insulation cover 500 is slidably connected to the fixed bracket 110 through the guide structures. The guide structures consist of two sets of spaced guide bars 520, which are located on both sides of the vertical rod of the fixed bracket 110. The guide structures slide in cooperation with the fixed bracket 110, providing precise guidance for the lifting and lowering movement of the insulation cover 500.

[0025] The insulation cover 500 has a hollow internal structure, and its inner wall is filled with heat-insulating material. This effectively prevents heat from diffusing outwards, concentrating heat on the movable mold 700, significantly improving heating efficiency while reducing energy consumption. The internal space of the insulation cover 500 can completely accommodate the entire movable mold 700, achieving full enclosure and ensuring uniform heating of all parts of the movable mold 700, avoiding localized temperature differences that could affect temperature control. The mold conveying device 200 is located at one end of the movable worktable 300 and is used to convey the movable mold 700 in both horizontal and vertical directions. It works in conjunction with the movable worktable 300 to realize the transfer of the movable mold 700 between the two. The horizontal direction refers to the direction parallel to the length of the base 100, and the vertical direction refers to the direction perpendicular to the upper surface of the base 100.

[0026] Specifically, the mold conveying device 200 includes a main body that can move vertically along the base 100 and a placement worktable 210. The placement worktable 210 is slidably connected to the upper end of the main body of the mold conveying device 200 and is used to support and position the movable mold 700. The main body of the mold conveying device 200 can be pushed vertically up and down by the output end of conventional linear drive devices such as hydraulic pushers, threaded screws, and gear racks. In this embodiment, the placement worktable 210 provides a V-shaped clamping fixture. The movable mold 700 can be placed and fixed inside the V-shaped fixture. The V-shaped structure can precisely adapt to the shape of the movable mold 700, providing stable support and positioning for the movable mold 700, preventing the movable mold 700 from sliding or shifting during the conveying process, and ensuring the stability of the conveying process.

[0027] The mold conveying device 200 has bidirectional conveying functions in both horizontal and vertical directions. In the horizontal direction, it can accurately convey the movable mold 700 to be temperature controlled to the designated working position of the temperature control component, and can also transfer the movable mold 700 that has completed temperature control to the subsequent extrusion station. The vertical lifting function is used to cooperate with the moving worktable 300 to complete the receiving and handover of the movable mold 700, ensuring the smooth transition of the movable mold 700 between different components.

[0028] like Figure 4 and Figure 5As shown, specifically, the driving device for moving the movable worktable 300 includes two sets of driving components respectively disposed on both sides of the base 100. The driving components include a guide cylinder seat 310, a guide rod 320, and a driving unit 330. The guide rod 320 is fixed on the base 100 and is horizontally arranged along the length direction of the base 100. The guide cylinder seat 310 is slidably connected to the guide rod 320 and is fixedly connected to the movable worktable 300. The fixed end of the driving unit 330 is fixed on the base 100, and the output end of the driving unit 330 is fixedly connected to the guide cylinder seat 310. The driving unit 330 can push the guide cylinder seat 310 to move horizontally along the guide rod 320. Two sets of rollers 340 are fixed at one end of the movable worktable 300. The rollers 340 are used to transfer and support the movable mold 700. The idler roller 340 provided in this embodiment is cantilevered and made of high-temperature resistant metal material. It can adapt to the high-temperature working conditions of the movable mold 700 and has a smooth surface. While supporting the movable mold 700, it can reduce the friction between the movable mold 700 and the idler roller 340 and avoid damaging the surface of the movable mold 700.

[0029] like Figure 6 As shown, preferably, an arc-shaped bottom groove 530 adapted to the roller 340 is provided at the bottom of the heat insulation cover 500. During the descent, the roller 340 will gradually embed into the arc-shaped bottom groove 530. At the same time, the lower edge of the heat insulation cover 500 will fit against the upper surface of the base 100, and the movable mold 700 will be completely inside the heat insulation cover 500, achieving interference-free coverage. After heating is completed, the lifting cylinder 630 resets, driving the heat insulation cover 500 to rise and open, the roller 340 disengages from the arc-shaped bottom groove 530, and the movable mold 700 is released.

[0030] Specifically, the depth of the arc-shaped bottom groove 530 is greater than the diameter of the idler roller 340, and the curvature of the arc-shaped bottom groove 530 matches the outer periphery of the idler roller 340 to ensure that the idler roller 340 can be fully embedded.

[0031] Heating element 400 adopts the principle of resistance heating. It starts or stops heating according to the actual temperature status of the movable mold 700 through the instructions of PLC and electrical control system, ensuring that the temperature of the movable mold 700 is stable within the process requirements. The heating process is stable and the heating power can be adjusted according to actual needs to adapt to the temperature control requirements of different movable molds 700.

[0032] It is clear that those skilled in the art can set up the PLC and electrical control system according to specific requirements. The PLC and electrical control system includes a dedicated temperature control program that can preset the target temperature of the movable mold 700 according to the production process.

[0033] Preferably, the heating element 400 is located directly below the roller 340 of the movable worktable 300. When the movable worktable 300 is reset to the rear position, the movable mold 700 is located directly above the heating element 400, which can receive heat to the maximum extent and improve heating efficiency.

[0034] The insulation cover 500 is equipped with a temperature detection element, which can monitor the temperature environment inside the cover in real time and feed the temperature data back to the control system. When the detected temperature is lower than the preset value, the control system automatically instructs the heating element 400 to start heating and begin to rise; when the temperature reaches the preset threshold, the control system instructs the heating element 400 to stop heating and maintain a stable temperature.

[0035] Preferably, multiple sets of surrounding plates 120 are fixed on the base 100. The multiple sets of surrounding plates 120 are arranged in a closed shape on the upper surface of the base 100, and the heating element 400 is located in the closed area enclosed by the multiple sets of surrounding plates 120. The surrounding plates 120 can reduce the heat loss to the outside during the heating process, improve the heat preservation effect, and at the same time provide a certain degree of protection for the components on the base 100.

[0036] The specific operating procedure is as follows: In the multi-die cycle of aluminum alloy profile extrusion production, when a set of movable dies 700 requires online temperature control, the die conveying device 200 first horizontally conveys the die to the designated working position of the temperature control device. Upon arrival, the die conveying device 200 drives the movable die 700 to rise vertically. The lifting height is precisely matched to the receiving requirements of the moving worktable 300, ensuring that the rollers 340 on the moving worktable 300 can smoothly move under the movable die 700 without mechanical interference.

[0037] Subsequently, under the action of the drive unit 330, the movable worktable 300 moves smoothly towards the movable mold 700 until the support roller 340 is within the support range of the movable mold 700 and below the movable mold 700. At this time, the V-shaped worktable of the mold conveying device 200 descends vertically and completely separates from the movable mold 700. The movable mold 700 is then smoothly placed on the support roller 340, achieving a stable support for the movable mold 700.

[0038] The movable worktable 300 then carries the movable mold 700 back to its rear position, precisely positioning the movable mold 700 directly above the heating element 400. Next, the heat insulation cover 500 descends vertically under the drive of the actuator 600, and through the cooperation of the guide structures on both sides and the fixed bracket 110, smoothly covers the outside of the movable mold 700, achieving complete enclosure of the movable mold 700 and reducing heat loss.

[0039] The heating element 400 and auxiliary heating elements are activated by PLC and electrical control system commands, transferring heat to the movable mold 700 through thermal radiation. Temperature detection elements inside the insulation cover 500 feed temperature data back to the control system in real time. The system automatically adjusts the working status of the heating element 400 and auxiliary heating elements according to preset temperature thresholds. Heating stops when the temperature reaches the target value and automatically restarts when the temperature falls below the set value, ensuring the movable mold 700 is kept warm in a stable temperature environment.

[0040] After the movable mold 700 completes the preset heating and heat preservation time, the PLC and electrical control system issue a command, and the heat preservation cover 500 rises vertically under the action of the actuator 600, opening the closed state. The moving worktable 300 carries the movable mold 700, which has reached the target temperature, and moves it horizontally towards the mold conveying device 200. The V-shaped worktable of the mold conveying device 200 rises, contacts the movable mold 700, and receives the mold. The moving worktable 300 then returns to its original position, and the mold conveying device 200 horizontally conveys the temperature-controlled movable mold 700 to the extrusion station for subsequent extrusion operations, completing the entire online temperature control process. After the previous movable mold 700 completes multiple extrusion cycles and cools down, the cooled movable mold 700 is removed, and the next movable mold 700, which is in the heat preservation state, is conveyed to the extrusion section via the mold conveying device 200.

[0041] This device, through the covering of the heat insulation cover 500 and the coordinated work of the heating element 400 and auxiliary heating elements, ensures that the movable mold 700 is heated evenly. The real-time feedback and regulation of the temperature detection element and the PLC control system enable the temperature of the movable mold 700 to be stably maintained within the range required by the process. This effectively avoids problems such as surface defects and dimensional accuracy deviations of the profile caused by temperature fluctuations of the movable mold 700, and significantly improves the product quality consistency of aluminum alloy profiles.

[0042] It should be noted that, unless otherwise expressly specified and limited, the term "connection" or its synonyms should be interpreted broadly in this document. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, expressions such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. At the same time, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In addition, the terms "front," "rear," "left," "right," "upper," and "lower" in this document refer to the placement states shown in the accompanying drawings.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. An online temperature control device for aluminum alloy profile extrusion dies, characterized in that, It includes a base (100), a mold conveying device (200), a movable worktable (300), heating elements (400), and a temperature control component; the movable worktable (300) is disposed above the base (100) and slides with the base (100) through a driving device, which can drive the movable mold (700) to move linearly in a preset direction; A fixed bracket (110) is fixedly connected to one end of the base (100), and the fixed bracket (110) is located between the movable worktable (300) and the mold conveying device (200); The driving device for moving the movable worktable (300) includes two sets of driving components respectively disposed on both sides of the base (100). Each driving component includes a guide cylinder seat (310), a guide rod (320), and a driving unit (330). The guide rod (320) is fixed to the base (100) and horizontally arranged along the length of the base (100). The guide cylinder seat (310) is slidably connected to the guide rod (320). The guide cylinder seat (310) and the movable worktable (300) are connected to the guide rod (320). The movable worktable (300) is fixedly connected, the fixed end of the drive unit (330) is fixed on the base (100), the output end of the drive unit (330) is fixedly connected to the guide cylinder seat (310), the drive unit (330) can push the guide cylinder seat (310) to move horizontally along the guide rod (320), and two sets of rollers (340) are fixed at one end of the movable worktable (300). The rollers (340) are used to transfer and support the movable mold (700). The mold conveying device (200) is located at one end of the movable worktable (300) and is used to convey the movable mold (700) in both horizontal and vertical directions. It also works with the movable worktable (300) to realize the transfer of the movable mold (700) between the two. The placement worktable (210) of the mold conveying device (200) is a V-shaped fixture. The movable mold (700) is placed inside the V-shaped fixture to form stable support and positioning. The heating element (400) is disposed on the base (100) and heats the movable mold (700) when it is handed over to the movable worktable (300). The temperature control component is disposed corresponding to the heating element (400), can move vertically and can cover the movable mold (700) to achieve thermal insulation. The temperature control component includes a heat insulation cover (500) and an actuator (600). The actuator (600) is mounted on the fixed bracket (110). The output end of the actuator (600) is connected to the heat insulation cover (500) to guide the heat insulation cover (500) to achieve lifting and lowering movements. The actuator (600) includes a wire rope (620), a pulley block (610), and a lifting cylinder (630). A lifting eye bolt (510) is fixed to the upper end of the insulation cover (500). The pulley block (610) is located on the upper end of the fixed bracket (110). The wire rope (620) is wound around the pulley block (610). The lifting cylinder (630) is fixed to the side of the fixed bracket (110). One end of the wire rope (620) is fixedly connected to the lifting eye bolt (510), and the other end of the wire rope (620) is connected to the lifting cylinder. At the output end of the cylinder (630), the pulley assembly (610) is used to guide the wire rope (620) to pull the heat insulation cover (500) to move vertically; the pulley assembly (610) includes a first pulley (611) and a second pulley (612), the first pulley (611) is fixed above the fixed bracket (110) near one end of the lifting cylinder (630), the second pulley (612) is fixed at the middle position above the fixed bracket (110), and the wire rope (620) passes over the second pulley (612) from above the first pulley (611); The heat insulation cover (500) is provided with auxiliary heating elements on the top and four sides of the interior, which work together with the heating element (400) to achieve all-round thermal radiation heating. The bottom of the heat insulation cover (500) is provided with an arc-shaped bottom groove that is compatible with the roller (340). During the descent, the roller (340) gradually embeds into the arc-shaped bottom groove, and the lower edge of the heat insulation cover (500) fits against the upper surface of the base (100), so as to achieve interference-free covering of the movable mold (700).

2. The online temperature control device for aluminum alloy profile extrusion dies according to claim 1, characterized in that, The heat insulation cover (500) is filled with heat insulation material. The heat insulation cover (500) is equipped with a temperature detection element, which can monitor the temperature environment inside the cover in real time. The heat insulation cover (500) is provided with guide structures on both sides. The heat insulation cover (500) is slidably connected to the fixed bracket (110) through the guide structures.

3. The online temperature control device for aluminum alloy profile extrusion dies according to claim 2, characterized in that, The guide structure consists of two sets of spaced guide bars (520), which are located on both sides of the vertical rod of the fixed bracket (110).

4. The online temperature control device for aluminum alloy profile extrusion dies according to claim 1, characterized in that, The mold conveying device (200) includes a main body that can move vertically along the base (100) and a placement worktable (210). The placement worktable (210) is slidably connected to the upper end of the main body of the mold conveying device (200) and is used to carry and position the movable mold (700).

5. The online temperature control device for aluminum alloy profile extrusion dies according to claim 1, characterized in that, Multiple sets of enclosure plates (120) are fixed on the base (100). The multiple sets of enclosure plates (120) are arranged in a closed manner on the upper surface of the base (100). The heating element (400) is located in the closed area enclosed by the multiple sets of enclosure plates (120).

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