A trolley type aging furnace for aluminum wire heat treatment

Abstract

This application relates to the technical field of heat treatment equipment and discloses a trolley-type aging furnace for aluminum wire heat treatment, including a furnace body, a trolley, and a slide rail. The trolley moves along the slide rail, entering and exiting the furnace body. The trolley is located at the end of the furnace body. The furnace body is divided into an upper chamber and a lower chamber, with the lower chamber being wider than the upper chamber. A partition is fixedly connected to the bottom of the upper chamber. The width of the trolley is greater than the width of the upper chamber but less than the width of the lower chamber. The trolley includes a car plate, and sand storage tanks corresponding to the partition are provided on both sides of the car plate. This trolley-type aging furnace for aluminum wire heat treatment achieves closed-loop recycling of sealing sand through a working mode of releasing sand after the trolley is in place and collecting sand before exiting the furnace. This not only leverages the high reliability of sand sealing but also fundamentally solves the problems of sand particle spillage, loss, jamming, and furnace contamination that exist in traditional sand sealing methods.

Description

Technical Field

[0001] This application relates to the field of heat treatment equipment technology, and in particular to a bogie-type aging furnace for heat treatment of aluminum wire. Background Technology

[0002] Aging furnaces eliminate internal stress in aluminum alloy materials after initial processing by holding them at a specific temperature, reducing stress concentration, thereby preventing workpiece deformation and stabilizing the mechanical properties of the material. When used with a trolley, it facilitates forklift access and is suitable for handling long aluminum wires or large castings.

[0003] Because the trolley needs to frequently enter and exit the furnace to complete the transfer and heat treatment of workpieces, a clearance inevitably exists between the trolley and the furnace body. If this clearance is not properly sealed, the high-temperature heat inside the furnace will leak out through the clearance, which will not only lead to a decrease in the stability of the temperature field inside the furnace and an increase in energy consumption, but also affect the process accuracy of aluminum alloy aging treatment, thereby damaging the quality of the workpiece. Therefore, the sealing structure between the trolley and the furnace body is one of the core key aspects of aging furnace design.

[0004] Sand sealing is an early sealing solution, commonly found in older aging furnaces or heavy-duty heat treatment equipment. Its structural principle is as follows: grooves are set on both sides of the trolley, and corresponding protrusions are machined into the furnace body. The space between the grooves and protrusions is filled with refractory sand. When the trolley is pushed into the furnace body, the furnace body protrusions insert into the refractory sand in the trolley grooves, utilizing the fluidity of the refractory sand particles to fill the gaps and form a sealing interface.

[0005] However, this structure has significant drawbacks: First, when the trolley enters and exits the furnace body, the refractory sand is easily spilled due to vibration and friction, leading to the loss of sealing material; second, the spilled sand powder is easy to mix with the oxide scale generated during the heat treatment of the workpiece, and after long-term accumulation, it is easy to clump together, which will not only cause jamming at the joint between the trolley and the furnace body, but also destroy the sealing continuity of the sand body, ultimately leading to seal failure; third, the high density of the refractory sand will increase the overall weight of the trolley, which is not conducive to the upgrading of the aging furnace towards lightweight and energy-saving, and it is difficult to meet the high-efficiency operation requirements of modern aluminum alloy processing production lines.

[0006] Due to the above drawbacks, current bogie-type aluminum wire aging furnaces typically use elastic refractory fibers for sealing. However, while refractory fibers are heat-resistant, they are relatively brittle. During frequent bogie movement, vibration, or thermal expansion and contraction, the fiber modules may break or crumble, leading to localized leaks. These leaks can cause uneven temperature distribution, resulting in uneven stress distribution in the aluminum products and affecting the quality of heat treatment. Summary of the Invention

[0007] This application proposes a bogie-type aging furnace for aluminum wire heat treatment. By using a working mode of releasing sand after the bogie is in place and collecting sand before exiting the furnace, a closed-loop recycling of sealing sand is achieved. This not only leverages the high reliability of sand sealing but also fundamentally solves the problems of sand particle spillage, loss, jamming, and furnace contamination that exist in traditional sand sealing.

[0008] To achieve the above objectives, this application adopts the following technical solution: A trolley-type aging furnace for aluminum wire heat treatment includes a furnace body, a trolley, and a slide rail. The trolley moves along the slide rail and enters and exits the furnace body. The furnace body is equipped with a trolley at its end. The furnace body is divided into an upper chamber and a lower chamber. The width of the lower chamber is greater than the width of the upper chamber. A partition is fixedly connected to the bottom of the upper chamber. The width of the trolley is greater than the width of the upper chamber but less than the width of the lower chamber. The trolley includes a car plate. Both sides of the car plate are provided with sand storage troughs corresponding to the partitions. A sand storage box is provided on the upper part of the car plate. The side of the sand storage box is provided with a sand leakage port facing the partition and a sand-blocking side plate that can block the sand leakage port. The closed door has a gate that moves up and down. After the gate is lowered, it is pressed against the car plate. The lowest point of the sand storage trough is provided with a sand cleaning port and a sand-blocking bottom plate that can block the sand cleaning port. Both sides of the bottom of the car plate are provided with sand return boxes corresponding to the sand cleaning ports.

[0009] Furthermore, the sand storage tank has a bottom that slopes downwards outwards, and the sand-blocking bottom plate extends to the end of the vehicle panel, with a T-shaped cross-section.

[0010] Furthermore, one side of the sand-blocking side plate is provided with an inclined surface, which is pushed out to close the sand leakage port. When the gate is lowered, the sand-blocking side plate can be pushed back into the groove by the inclined surface.

[0011] Furthermore, both sides of the vehicle plate are provided with embedding grooves corresponding to the sand return box. The bottom of the embedding groove is provided with a through groove to facilitate pulling out the sand return box. The top of the sand storage box is provided with an inclined cover plate. The bottom of the sand return box is provided with a sand pouring port. The end of the sand pouring port is provided with a gate to facilitate pouring the insulating sand back into the sand storage box.

[0012] Furthermore, the upper end of the sand return box is provided with an inclined filter plate, with the higher side of the filter plate corresponding to the position of the sand cleaning port. The filter plate filters out the clumps in the insulating sand, preventing the clumps from causing temperature leakage.

[0013] Furthermore, it also includes a sand return component, which includes a support plate and a support rod. The support rod is provided with several limiting blocks. A force-bearing groove is fixedly connected to the outside of the sand return box. The opening of the force-bearing groove faces downward. The force-bearing groove is provided with a stabilizing slot for the limiting blocks to pass through and a limiting plate to block the limiting blocks. In order to ensure the flow of insulating sand, the tilt angle of the sand return box is 30-45 degrees.

[0014] Furthermore, the sand pouring port has an upwardly inclined neck. After the sand return box is tilted to its maximum, the neck is horizontal. The end of the sand pouring port is provided with a sliding groove. Several wedges are provided on the gate plate. The sand storage box is provided with a driving wedge corresponding to the wedge. The side of the sand storage box is provided with a pouring inlet. The neck of the sand pouring port can be inserted into the sand storage box through the pouring inlet to send the insulating sand into the sand storage box. The wedge contacts the driving wedge, and the driving wedge moves the wedge upward, so that the insulating sand flows out.

[0015] Furthermore, it also includes an adjusting component, which includes a longitudinally movable trolley, a guide rod fixedly connected to the trolley, a support plate moving up and down along the guide rod, and a lead screw on the trolley, which is connected to a drive motor that drives the support plate to move up and down.

[0016] Furthermore, the mobile vehicle is equipped with several support blocks corresponding to the passage groove, and the upper surface of the support blocks is provided with elastic pads and inclined surfaces. When the mobile vehicle moves to the innermost side, the support blocks can be inserted into the bottom of the sand return box.

[0017] The beneficial effects of this invention are as follows:

[0018] This application provides a trolley-type aging furnace for aluminum wire heat treatment. After the trolley is inserted into the furnace body, the sand-blocking side plate on the side of the sand storage box slides, allowing insulating sand to flow into the space between the sand cleaning port and the partition, filling the gap. Since the insulating sand is released after the trolley is in place and the furnace is started after the insulating sand is recovered, the insulating sand will not be pushed by the trolley, is not easy to fall into the furnace, and will not hinder the movement of the trolley. Secondly, the insulating sand maintains a circulating flow, filtering out impurities and clumps during the flow process, ensuring the insulating properties of the insulating sand. Finally, since the insulating sand does not hinder the movement of the trolley, the force between the insulating sand and the partition is small, which does not affect the lightweight design of the furnace body.

[0019] Compared to elastic refractory fiber seals, flowing insulating sand ensures effective sealing every time. Furthermore, the thickness and height of the insulating sand can be flexibly adjusted through the gaps in the flowing insulating sand, ensuring effective and reliable sealing, uniform furnace temperature, and uniform stress distribution in aluminum products. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort:

[0021] Figure 1 This is a schematic diagram of the present invention;

[0022] Figure 2 This is a front view of the present invention;

[0023] Figure 3 This is a schematic diagram of the sealing door in this invention;

[0024] Figure 4 This is a partial schematic diagram of the sand-blocking side plate in this invention;

[0025] Figure 5 In this invention Figure 3 Top view;

[0026] Figure 6 This is a partial schematic diagram of the sand-blocking base plate in this invention;

[0027] Figure 7 In this invention Figure 5 A schematic diagram after cutting along the CC line;

[0028] Figure 8 In this invention Figure 7 The front view;

[0029] Figure 9 This is a partial schematic diagram of the sand return box in this invention;

[0030] Figure 10 For the present invention Figure 8 Enlarged view of A in the middle;

[0031] Figure 11 This is a schematic diagram of the sand return box during sand pouring according to the present invention;

[0032] Figure 12 For the present invention Figure 11 Enlarged view of B in the middle;

[0033] Figure 13 This is a schematic diagram of the sand return component and the adjustment component in this invention.

[0034] In the diagram: 1. Furnace body; 101. Upper cavity; 102. Lower cavity; 103. Baffle plate; 2. Car; 3. Sealing door; 301. Car platform; 302. Sand storage trough; 303. Sand storage box; 304. Sand cleaning port; 305. Sand-blocking side plate; 306. Sand return box; 307. Embedded groove; 308. Sand leakage port; 309. Sand-blocking bottom plate; 310. Force-bearing groove; 311. Stabilizing slot; 312. Limiting plate; 313. Through groove 314. Cover plate; 315. Sand outlet; 316. Slide groove; 317. Gate; 318. Wedge block; 319. Filter plate; 320. Inlet; 321. Drive wedge block; 4. Slide rail; 5. Sand return component; 501. Support plate; 502. Support rod; 503. Limiting block; 6. Adjusting component; 601. Moving cart; 602. Guide rod; 603. Support block; 604. Screw; 605. Drive motor; 7. Side rail. Detailed Implementation

[0035] 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.

[0036] Example 1, please refer to Figure 1 and Figure 6 A trolley-type aging furnace for aluminum wire heat treatment includes a furnace body 1, a trolley 3, and a slide rail 4. The trolley 3 is equipped with a traction structure, which can be located at the end or bottom of the trolley 3. The traction structure causes the trolley 3 to move along the slide rail 4, entering and exiting the furnace body 1. Both ends of the furnace body 1 are equipped with sealing doors 2. The interior of the furnace body 1 is divided into an upper cavity 101 and a lower cavity 102. The sidewall of the upper cavity 101 has a heat insulation layer, which causes the inner wall of the upper cavity 101 to protrude inwards compared to the lower cavity 102, meaning the width of the lower cavity 102 is greater than the width of the upper cavity 101. A partition 103 is fixedly connected to the bottom of the heat insulation layer. The width of the trolley 3 is greater than the width of the upper cavity 101 but less than the width of the lower cavity 102. The trolley 3 includes a trolley plate 301, and sand storage troughs 302 corresponding to partition plates 103 are provided on both sides of the trolley plate 301. The length of the sand storage troughs 302 is equal to the length of the furnace body 1. The sealing door 2 has a gate that moves up and down. After the gate is lowered, it is pressed against the trolley plate 301, sealing the end of the upper cavity 101. At this time, heat can leak from the gaps on both sides to the bottom of the trolley plate 301, and then dissipate to the outside through the slide rail 4. In order to seal the gaps on both sides, a sand storage box 303 is provided on the upper part of the trolley plate 301. The side of the sand storage box 303 facing the side wall is provided with a sand leakage port 308 and a corresponding sand-blocking side plate 305. The sand leakage port 308 and the sand-blocking side plate 305 are provided with corresponding holes. Pulling or pushing the sand-blocking side plate 305 can make the holes of the two offset and overlap. After the trolley 3 is pushed into place, the sand-blocking side plate 305 is pushed to align its hole with the hole of the sand leakage port 308. The sand storage box 303 is filled with heat-insulating sand, which falls into the sand storage tank 302. The heat-insulating sand fills the gap between the sand storage tank 302 and the partition plate 103 to achieve heat preservation. The sand storage tank 302 has an outward and downward orientation. The sloping bottom is lower than the surface of the car plate 301, which can store an appropriate amount of sand. The lowest point of the bottom is provided with a sand cleaning port 304 and a sand blocking bottom plate 309. The working method of the sand cleaning port 304 and the sand blocking bottom plate 309 is the same as that of the sand leakage port 308 and the sand blocking side plate 305. Both sides of the bottom of the car plate 301 are provided with sand return boxes 306 corresponding to the sand cleaning port 304. After the heat treatment is completed, the sand blocking bottom plate 309 is pushed so that the sand blocking bottom plate 309 is aligned with the hole of the sand cleaning port 304. The insulating sand in the sand storage tank 302 falls into the sand return box 306. Then, the closed door 2 on one side is opened and the trolley 3 is pulled out.

[0037] Since the sand cleaning port 304 is biased towards the edge and relatively far away from the gap between the sand storage tank 302 and the partition plate 103, that is, the sand cleaning port 304 is located on the outside and below the sealed insulation cavity, and its position is outside the sand-sealed insulation area, operation from this point will not affect the insulation area and avoid heat leakage. Therefore, in order to facilitate the operation of the sand baffle plate 309, the sand baffle plate 309 extends to the end of the car plate 301, and can be operated outside the furnace body 1. The sand cleaning port 304 is opened from the outside, reducing the opening time of the closed door 2 and reducing temperature loss. The cross section of the sand baffle plate 309 is T-shaped, so that it can fit tightly against the bottom of the sand cleaning port 304 over a long span.

[0038] Before pushing the closed door 2 into the furnace body 1, first push the sand-blocking side plate 305 so that the inclined surface of one side of the sand-blocking side plate 305 is pushed out. After the sand-blocking side plate 305 is pushed out, the sand leakage port 308 and the hole of the sand-blocking side plate 305 are misaligned. After filling the sand-blocking side plate 305 with insulating sand, push the trolley 3 into the furnace body 1, and then close the closed door 2. When the gate falls, it interacts with the inclined surface of the sand-blocking side plate 305, causing it to retract into the groove. The holes between the sand-blocking side plate 305 and the sand-blocking bottom plate 309 are aligned, and the sand falls quickly and relatively evenly into the sand storage tank 302 to achieve side sealing. After the processing time is reached, the sand-blocking bottom plate 309 is moved outside the furnace body 1 so that the sand-blocking bottom plate 309 is aligned with the hole of the sand cleaning port 304. After a short while, the insulating sand in the sand cleaning port 304 falls into the sand return box 306. The gate is opened, and the trolley 3 and aluminum material are pulled out.

[0039] Please see Figures 7-13 Both sides of the vehicle platform 301 are provided with embedding grooves 307 corresponding to the sand return box 306. The sand return box 306 is embedded in the vehicle platform 301. The bottom of the embedding groove 307 is provided with a through groove 313 to facilitate the removal of the sand return box 306 from the side. After the sand return box 306 is removed, it is lifted by a hoisting structure or a forklift. The top of the sand storage box 303 is provided with an inclined cover plate 314. The bottom of the sand return box 306 is provided with a sand pouring port 315. The end of the sand pouring port 315 is provided with a gate plate 317. After the gate plate 317 is opened, the insulating sand in the sand return box 306 is poured back into the sand storage box 303.

[0040] The upper end of the sand return box 306 is provided with an inclined filter plate 319. The higher side of the filter plate 319 corresponds to the position of the sand cleaning port 304. The filter plate 319 filters out the clumps in the insulating sand to prevent the clumps from causing temperature leakage.

[0041] For easier operation of the sand return box 306, please refer to [link / reference]. Figures 9-11It also includes a sand return component 5, which includes a support plate 501. The support plate 501 is fixedly connected to a support rod 502. The support rod 502 is provided with several limiting blocks 503. The support plate 501 can be installed on the operating mechanical structure, such as fixedly installed on a forklift attachment. A force-receiving groove 310 is fixedly connected to the outside of the sand return box 306. The opening of the force-receiving groove 310 faces downward and corresponds to the support rod 502. The support rod 502 can lift the sand return box 306 through the force-receiving groove 310. The force-receiving groove 310 is provided with a stabilizing slot 311 for the limiting blocks 503 to pass through and a limiting plate 312 to block the limiting blocks 503. The position of 312 is adjusted according to the actual situation. In this embodiment, it is set on the force groove 310. If the bottom edge of the sand return box 306 is closer to the support rod 502, the limiting plate 312 is set on the bottom edge of the sand return box 306. The limiting plate 312 restricts the tilt angle of the sand return box 306. In order to ensure the flow of the insulating sand, the tilt angle of the sand return box 306 is 30-45 degrees. In other embodiments, after the adjusting piece 6 is lifted, the sand return box 306 may not tilt. However, in order to pour out the insulating sand, the bottom of the sand return box 306 needs to be tilted, which will reduce the space utilization rate, make the sand return box 306 larger, and affect the insulation of the vehicle plate 301.

[0042] The sand outlet 315 has an upwardly inclined neck. After the sand return box 306 is tilted to its maximum, the neck is horizontal. The end of the sand outlet 315 is provided with a groove 316. The gate 317 slides along the groove 316. The gate 317 is provided with several wedges 318. The sand storage box 303 is provided with a driving wedge 321 corresponding to the wedges 318. The driving wedge 321 is fixedly connected to the cover plate 314. The side of the sand storage box 303 is provided with a pouring inlet 320. The neck of the sand outlet 315 can be inserted into the sand storage box 303 through the pouring inlet 320. In step 3, insulating sand is fed into the sand storage box 303. The wedge 318 contacts the driving wedge 321, which causes the wedge 318 to move upward, allowing the insulating sand to flow out. After the return sand box 306 is withdrawn, the wedge 318 falls down, sealing the port of the sand pouring port 315. The wedge 318 can fall back under gravity. If the gravity is insufficient, an elastic pull rope can be set to pull the wedge 318 back. When the return sand box 306 is inserted into the embedding groove 307, the inclined neck of the sand pouring port 315 can effectively prevent the insulating sand from spilling.

[0043] Example 2, based on Example 1, uses adjusting component 6 to assist in the movement of the sand return box 306. Please refer to [link / reference]. Figure 1 , Figures 7-13The adjusting component 6 includes a longitudinally movable trolley 601, which moves along a side rail 7 set on the floor. The trolley 601 is fixedly connected to a guide rod 602, and the support plate 501 moves up and down along the guide rod 602. The trolley 601 is provided with a lead screw 604, which is connected to a drive motor 605. The lead screw 604 is threadedly connected to the support plate 501, and the lead screw 604 drives the support plate 501 to move up and down.

[0044] After the trolley 3 moves out of the furnace body 1 and reaches the set position, the support rod 502 is aligned with the force groove 310. The moving carriage 601 moves to the innermost side, and the screw 604 drives the support plate 501 to rise to the middle position. The middle position refers to the position relative to the upper and lower poles, not the midpoint. At this time, the support rod 502 is inserted into the force groove 310, and the limiting block 503 is inserted into the stabilizing slot 311 from bottom to top. Then, the support plate 501 moves outward to pull out the sand return box 306. Then, the screw 604 continues to drive the support plate 501 to rise to the upper pole position. At this point, the sand return box 306 is tilted, the sand pouring port 315 is horizontal and exactly aligned with the pouring port 320. Then the moving carriage 601 is reset and inserted into the sand return box 306 with the sand pouring port 315. The wedge block 318 is opened, and the insulating sand on the sand return box 306 is poured back into the sand storage box 303. After the insulating sand is poured back, the moving carriage 601 moves outward first, and then the screw 604 drives the support plate 501 to descend to the middle position. The moving carriage 601 is reset, the sand return box 306 is inserted into the embedding groove 307, and finally, the screw 604 causes the support plate 501 to descend to the lower extreme position.

[0045] To prevent the sand return box 306 from falling after being pulled out, the moving vehicle 601 is equipped with several support blocks 603 corresponding to the through groove 313. The upper surface of the support block 603 is provided with an elastic pad and an inclined surface. The tip of the inclined surface is lower than the bottom of the sand return box 306, and the elastic pad is slightly higher than or flush with the bottom of the sand return box 306. When the moving vehicle 601 moves to the innermost side, the support block 603 inserts into the bottom of the sand return box 306. When the sand return box 306 is pulled out, as the support rod 502 supports the force groove 310 and moves upward, the sand return box 306 gradually tilts. The support block 603 effectively prevents the sand return box 306 from falling to the ground or the limiting plate 312 from colliding with the limiting insert block 503.

[0046] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A trolley-type aging furnace for heat treatment of aluminum wire, comprising a furnace body (1), a trolley (3) and a slide rail (4), wherein the trolley (3) moves along the slide rail (4) and enters and exits the furnace body (1), and the furnace body (1) is provided with a closed door (2) at its end, characterized in that: The furnace body (1) is divided into an upper cavity (101) and a lower cavity (102). The width of the lower cavity (102) is greater than the width of the upper cavity (101). A partition (103) is fixedly connected to the bottom of the upper cavity (101). The width of the trolley (3) is greater than the width of the upper cavity (101) and less than the width of the lower cavity (102). The trolley (3) includes a car plate (301). Both sides of the car plate (301) are provided with sand storage tanks (302) corresponding to the partition (103). A sand storage box (303) is provided on the upper part of the car plate (301). The side of the sand storage box (303) is provided with a sand leakage port (308) facing the partition (103) and a sand blocking side plate (305) that can block the sand leakage port (308). The closed door (2) has a gate that moves up and down. When the gate is lowered, it is pressed against the vehicle board (301). The lowest point of the sand storage tank (302) is provided with a sand cleaning port (304) and a sand blocking bottom plate (309) that can block the sand cleaning port (304). Both sides of the bottom of the vehicle board (301) are provided with return sand boxes (306) corresponding to the sand cleaning port (304).

2. The aging furnace for heat treatment of aluminum wire of a bogie type according to claim 1, characterized in that, The sand storage tank (302) has a bottom that slopes downward outward, and the sand baffle plate (309) extends to the end of the vehicle plate (301) and has a T-shaped cross-section.

3. The aging furnace for heat treatment of aluminum wire of a bogie type according to claim 1, characterized in that, The sand-blocking side plate (305) has an inclined surface on one side, and the inclined surface is pushed out to close the sand leakage port (308).

4. The aging furnace for heat treatment of aluminum wire of a bogie type according to claim 1, characterized in that, Both sides of the vehicle plate (301) are provided with embedding grooves (307) corresponding to the sand return box (306). The bottom of the embedding groove (307) is provided with a through groove (313). The top of the sand storage box (303) is provided with an inclined cover plate (314). The bottom of the sand return box (306) is provided with a sand pouring port (315). The end of the sand pouring port (315) is provided with a gate plate (317).

5. The aging furnace for heat treatment of aluminum wire of a bogie type according to claim 4, characterized in that, The upper end of the sand return box (306) is provided with an inclined filter plate (319), and the higher side of the filter plate (319) corresponds to the position of the sand cleaning port (304).

6. The aging furnace for heat treatment of aluminum wire of a bogie type according to claim 4, characterized in that, It also includes a sand return component (5), which includes a support plate (501), a support rod (502) fixedly connected to the support plate (501), and a number of limiting blocks (503) provided on the support rod (502). A force groove (310) is fixedly connected to the outside of the sand return box (306). The opening of the force groove (310) is downward. The force groove (310) is provided with a stable slot (311) for the limiting blocks (503) to pass through and a limiting plate (312) to block the limiting blocks (503).

7. The aging furnace for heat treatment of aluminum wire of a bogie type according to claim 6, characterized in that, The sand pouring port (315) has an upwardly inclined neck. After the sand return box (306) is tilted to its maximum, the neck is horizontal. The end of the sand pouring port (315) is provided with a sliding groove (316). The gate plate (317) is provided with several wedges (318). The sand storage box (303) is provided with a driving wedge (321) corresponding to the wedges (318). The side of the sand storage box (303) is provided with a pouring inlet (320). The neck of the sand pouring port (315) can be inserted into the sand storage box (303) through the pouring inlet (320).

8. The aging furnace for heat treatment of aluminum wire of a bogie type according to claim 7, characterized in that, It also includes an adjustment component (6), which includes a longitudinally movable carriage (601), a guide rod (602) fixedly connected to the carriage (601), a support plate (501) moving up and down along the guide rod (602), a lead screw (604) on the carriage (601), and a drive motor (605) connected to the lead screw (604). The lead screw (604) drives the support plate (501) to move up and down.

9. A bogie-type aging furnace for heat treatment of aluminum wire according to claim 8, characterized in that, The mobile vehicle (601) is provided with several support blocks (603) corresponding to the through groove (313), and the upper surface of the support block (603) is provided with an elastic pad and an inclined surface.

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