Aluminum bar heating furnace uniform in heating

Abstract

The aluminum bar heating furnace comprises a heat preservation bin, a heater is installed on the top wall in the heat preservation bin, a plurality of driving rollers and driven rollers are installed at the positions, located at the bottom of the heater, in the heat preservation bin, and guide grooves are evenly formed in the two sides of the heat preservation bin. The two ends of the driving roller and the two ends of the driven roller penetrate through guide grooves in the two sides of the heat preservation bin correspondingly and extend to the outside, bearing seats are installed at the shaft ends, extending to the outer side of the heat preservation bin, of the driving roller and the driven roller correspondingly, pushing air cylinders are installed at the positions, located at the bottoms of the bearing seats, of the outer wall of the heat preservation bin, and the tail ends of cylinder bodies of the pushing air cylinders are fixed to the outer wall of the heat preservation bin. The output end of the pushing air cylinder is in sliding fit with the bearing seat, and the aluminum bar can continuously roll and turn over in the heating process by being matched with rotation of the driving roller and makes contact with a heat source generated by the heater in an all-around mode. And the problem of non-uniform heating caused by static heating of the aluminum bar and fixed heating surface in the traditional heating furnace is effectively solved.

Description

Technical Field

[0001] This utility model belongs to the technical field of aluminum rod heating furnaces, specifically relating to an aluminum rod heating furnace with uniform heating. Background Technology

[0002] In aluminum alloy extrusion molding, aluminum rods are the key raw material, and their heating uniformity plays a decisive role in the subsequent processing quality and finished product performance. Currently, gas-fired and electric heating furnaces for aluminum rods are widely used in industrial production, but traditional furnace types have significant shortcomings in terms of heating technology and automation control.

[0003] On the one hand, most traditional aluminum rod heating furnaces use a fixed furnace chamber structure. During static heating, the aluminum rods exhibit uneven heating due to differences in heat conduction efficiency. This unevenness not only causes thermal stress concentration within the aluminum rods but also easily leads to defects such as surface cracks during extrusion. On the other hand, traditional heating furnaces struggle to meet the demands of large-volume continuous production. They lack dynamic adjustment capabilities and cannot actively rotate or move the aluminum rods during heating, resulting in a fixed heating surface that further exacerbates the uneven heating, especially when processing large-diameter aluminum rods, severely impacting heating efficiency and finished product yield.

[0004] Based on this, the present invention proposes an aluminum rod heating furnace that can actively flip or move the aluminum rod during the heating process to ensure that the aluminum rod is heated evenly. At the same time, it realizes fully automated operation, which not only meets the needs of large-scale continuous production, but also effectively improves the processing quality of aluminum alloy profiles and reduces energy consumption and production costs. Utility Model Content

[0005] To achieve the above objectives, this utility model provides the following technical solution: a uniformly heated aluminum rod heating furnace, comprising a heat preservation chamber, a heater installed on the top wall inside the heat preservation chamber, multiple drive rollers and driven rollers respectively installed at the bottom of the heater inside the heat preservation chamber, guide grooves evenly opened on both sides of the heat preservation chamber, the two ends of the drive rollers and driven rollers respectively passing through the guide grooves on both sides of the heat preservation chamber and extending to the outside, bearing seats are installed on the shaft ends of the drive rollers and driven rollers extending to the outside of the heat preservation chamber, a push cylinder is installed on the outer wall of the heat preservation chamber at the bottom of the bearing seat, the tail end of the push cylinder body is fixed to the outer wall of the heat preservation chamber, and the output end of the push cylinder and the bearing seat are in sliding fit.

[0006] As a preferred embodiment of this invention, the plurality of driving rollers and the plurality of driven rollers are alternately arranged, and the distance between adjacent and alternating driving rollers and driven rollers is less than the diameter of the aluminum rod.

[0007] As a preferred technical solution of this utility model, the insulated chamber has an inlet at one end and an outlet at the other end.

[0008] As a preferred embodiment of this utility model, both the inlet and outlet are fixed with guide platforms, and a conveyor is installed at the end of the guide platform at the outlet.

[0009] As a preferred technical solution of this utility model, the heat preservation chamber is slidably connected to a baffle at the inlet, and a drive motor is installed on the top of the baffle. The output end of the drive motor and the baffle are connected by a gear and rack transmission.

[0010] As a preferred embodiment of this invention, the surfaces of both the driving roller and the driven roller are made of high-temperature resistant material.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] (1) This utility model, by cooperating with the rotation of the drive roller, enables the aluminum rod to continuously roll and tumble during the heating process, making full contact with the heat source generated by the heater. It effectively overcomes the problem of uneven heating caused by static heating of aluminum rods and fixed heating surfaces in traditional heating furnaces, avoids the concentration of thermal stress inside the aluminum rod, reduces the probability of defects such as surface cracks during extrusion, ensures uniform heating of all parts of the aluminum rod, and provides a high-quality billet base for subsequent aluminum alloy extrusion molding.

[0013] (2) The push cylinder pushes the aluminum rod forward and transfers between different roller groups according to the set sequence with the help of the drive roller and the driven roller, ensuring that the heating process proceeds in an orderly manner. The entire heating process does not require much manual intervention, realizing fully automated operation, which greatly meets the needs of large-scale continuous production, significantly improves production efficiency, and reduces labor costs.

[0014] (3) By setting up the inlet and outlet of the insulation chamber, the guide platform, and the conveyor in a coordinated manner, continuous and automated transmission of aluminum rods is achieved. The control structure composed of the baffle at the inlet and the drive motor can accurately control the entry of aluminum rods into the insulation chamber; in terms of energy consumption and cost control, precise automated control avoids the energy waste caused by uneven heating and inability to dynamically adjust in traditional heating furnaces. The reasonable heating process and equipment operation mechanism reduce energy consumption while ensuring heating effect, thereby reducing production costs. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a side view of the present invention;

[0017] Figure 2This is a cross-sectional structural diagram of the insulated compartment in this utility model;

[0018] In the diagram: 1. Insulation chamber; 2. Heater; 3. Drive roller; 4. Driven roller; 5. Bearing housing; 6. Push cylinder; 7. Inlet; 8. Outlet; 9. Guide table; 10. Conveyor; 11. Baffle; 12. Drive motor; 13. Guide trough. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example

[0021] Please see Figure 1-2 The present invention provides the following technical solution: a uniformly heated aluminum rod heating furnace, comprising a heat preservation chamber 1, a heater 2 installed on the top wall inside the heat preservation chamber 1, a plurality of drive rollers 3 and driven rollers 4 respectively installed at the bottom of the heater 2 inside the heat preservation chamber 1, guide grooves 13 evenly opened on both sides of the heat preservation chamber 1, the two ends of the drive rollers 3 and driven rollers 4 respectively passing through the guide grooves 13 on both sides of the heat preservation chamber 1 and extending to the outside, bearing seats 5 are installed on the shaft ends of the drive rollers 3 and driven rollers 4 extending to the outside of the heat preservation chamber 1, and a push cylinder 6 is installed on the outer wall of the heat preservation chamber 1 at the bottom of the bearing seat 5, the tail end of the push cylinder 6 is fixed to the outer wall of the heat preservation chamber 1, and the output end of the push cylinder 6 and the bearing seat 5 are in sliding fit.

[0022] In order to ensure that the aluminum rod can be stably supported and rotated during the heating process, so that all parts of the aluminum rod are heated evenly and to avoid local overheating or underheating, in this embodiment, as a preferred technical solution of the present invention, multiple drive rollers 3 and multiple driven rollers 4 are alternately arranged, and the distance between adjacent and alternating drive rollers 3 and driven rollers 4 is smaller than the diameter of the aluminum rod.

[0023] In order to realize continuous automated heating of aluminum bars, facilitate the orderly entry and exit of aluminum bars into the heat preservation chamber for heating treatment, and meet the needs of mass production, in this embodiment, as a preferred technical solution of this utility model, the heat preservation chamber 1 has an inlet 7 at one end and an outlet 8 at the other end.

[0024] In order to guide the aluminum rods smoothly into and out of the insulation chamber and prevent them from shifting or getting stuck during the process, and to achieve efficient transmission of the aluminum rods, in this embodiment, as a preferred technical solution of the present invention, a guide platform 9 is fixed at both the inlet 7 and the outlet 8, and a conveyor 10 is installed at the end of the guide platform 9 at the outlet 8.

[0025] In order to precisely control the entry of aluminum rods into the insulation chamber 1 and avoid too many aluminum rods entering at the same time from affecting the heating effect, and to achieve precise and automated control of the heating process, in this embodiment, as a preferred technical solution of the present invention, the insulation chamber 1 is slidably connected to the inlet 7 with a baffle 11, and a drive motor 12 is installed on the top of the baffle 11. The output end of the drive motor 12 and the baffle 11 are connected by a gear and rack transmission.

[0026] In order to ensure that the drive roller 3 and the driven roller 4 can operate stably for a long time in a high-temperature heating environment and to prevent the roller surface material from being damaged or deformed due to high temperature, in this embodiment, as a preferred technical solution of the present invention, the roller surfaces of the drive roller 3 and the driven roller 4 are both made of high-temperature resistant material.

[0027] In summary, with the help of the above-described technical solution of this utility model,

[0028] During operation, the aluminum rod is conveyed to the guide platform 9 at inlet 7. Using the inclined surface of the guide platform 9, it rolls downwards to one side of the baffle 11 at inlet 7 of the insulation chamber 1. Driven by the drive motor 12 through gear and rack transmission, the baffle 11 can slide open and close to control the aluminum rod's entry into the insulation chamber 1. Meanwhile, the heater 2 continuously heats the space inside the insulation chamber 1, providing a heat source environment for heating the aluminum rod.

[0029] Multiple alternating drive rollers 3 and driven rollers 4 constitute the support and transmission structure for the aluminum rod. Since the distance between adjacent and alternating drive rollers 3 and driven rollers 4 is smaller than the diameter of the aluminum rod, a stable support is formed when the aluminum rod is placed on the drive rollers 3 and driven rollers 4. Driven by power, the drive rollers 3 rotate, causing the aluminum rod to roll and tumble on the surfaces of the drive rollers 3 and driven rollers 4, achieving omnidirectional contact between the aluminum rod and the heat source, effectively avoiding uneven heating caused by a fixed heating surface.

[0030] After the aluminum rod has been heated for a certain period of time on the current combination of drive roller 3 and driven roller 4, the push cylinder 6 starts to work. The tail end of the push cylinder 6 is fixed to the outer wall of the insulation chamber 1, and the output end drives the bearing seat 5 to move upward along the trajectory of the guide grooves 13 on both sides of the insulation chamber 1. The bearing seat 5 is connected to the shaft ends of drive roller 3 and driven roller 4. As the bearing seat 5 moves upward, drive roller 3 or driven roller 4 rises synchronously, lifting the aluminum rod on the surface and pushing it to transfer to the next combination of drive roller 3 and driven roller 4. During this process, the aluminum rod continues to be turned and heated on the new roller group to ensure that all parts of the aluminum rod are heated evenly.

[0031] Throughout the heating process, by strictly controlling the timing of the push cylinder 6, the next aluminum rod is transferred only after the previous aluminum rod has been completely transferred to the next roller group, thus avoiding mutual interference between aluminum rods and ensuring the continuity and stability of the aluminum rod heating process.

[0032] After the aluminum rods complete all heating processes within the insulation chamber 1, they are conveyed to subsequent processing stages via the guide table 9 at outlet 8 and the conveyor 10. The baffle 11 at inlet 7, driven by the drive motor 12 through gear and rack transmission, reopens to allow new aluminum rods to enter, thus automating the entire heating process and meeting the demands of large-scale continuous production. Simultaneously, the high-temperature resistant roller surface material of the drive roller 3 and driven roller 4 ensures long-term stable operation in high-temperature environments, guaranteeing the reliability of the heating process and extending the equipment's lifespan.

[0033] Finally, it should be noted that, in this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection 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 utility model according to the specific circumstances.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A uniformly heated aluminum rod heating furnace, comprising a heat-insulating chamber (1), characterized in that: A heater (2) is installed on the top wall inside the heat preservation chamber (1). Multiple drive rollers (3) and driven rollers (4) are installed at the bottom of the heater (2) inside the heat preservation chamber (1). Guide grooves (13) are evenly opened on both sides of the heat preservation chamber (1). The two ends of the drive rollers (3) and driven rollers (4) pass through the guide grooves (13) on both sides of the heat preservation chamber (1) and extend to the outside. Bearing seats (5) are installed on the shaft ends of the drive rollers (3) and driven rollers (4) extending to the outside of the heat preservation chamber (1). A push cylinder (6) is installed on the outer wall of the heat preservation chamber (1) at the bottom of the bearing seat (5). The tail end of the push cylinder (6) is fixed to the outer wall of the heat preservation chamber (1). The output end of the push cylinder (6) and the bearing seat (5) are in sliding fit.

2. The aluminum rod heating furnace with uniform heating according to claim 1, characterized in that: The multiple drive rollers (3) and multiple driven rollers (4) are alternately arranged, and the distance between adjacent and alternating drive rollers (3) and driven rollers (4) is less than the diameter of the aluminum rod.

3. The aluminum rod heating furnace with uniform heating according to claim 1, characterized in that: The insulated chamber (1) has an inlet (7) at one end and an outlet (8) at the other end.

4. The aluminum rod heating furnace with uniform heating according to claim 3, characterized in that: Both the inlet (7) and the outlet (8) are fixed with guide platforms (9), and a conveyor (10) is installed at the end of the guide platform (9) at the outlet (8).

5. The aluminum rod heating furnace with uniform heating according to claim 4, characterized in that: The heat preservation chamber (1) is slidably connected to a baffle (11) at the inlet (7). A drive motor (12) is installed on the top of the baffle (11). The output end of the drive motor (12) and the baffle (11) are connected by a gear and rack transmission.

6. The aluminum rod heating furnace with uniform heating according to claim 1, characterized in that: The surfaces of both the drive roller (3) and the driven roller (4) are made of high-temperature resistant material.

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