Aluminum Profile Extrusion Machine with an Efficient Cooling System

Abstract

The present invention discloses an aluminum profile extruder with an efficient cooling system, belonging to the technical field of extruders, including a profile processing base and an extrusion device. One end of the profile processing base is provided with a cooling base, and a sealed cooling cover is arranged above the cooling base. One end of the sealed cooling cover is connected with a air supply end cover, and the other end is connected with an air outlet end cover. A high-power circulation pump group is arranged at the bottom of the cooling base. One end of the high-power circulation pump group is connected with the air supply end cover through an air supply pipe, and the other end is connected with the air outlet end cover through a condensation component. Through the innovative dynamic sealing and rotary heat exchange mechanism, the present invention realizes the integrated production of continuous extrusion and quenching of aluminum profiles while ensuring the metallurgical properties of the materials. The air-cooling process with the participation of water vapor is more rapid, effectively making up for the poor quenching effect of air cooling, and the participation of inert gas can ensure the avoidance of oxidation of aluminum profiles.

Description

Technical Field

[0001] The present invention relates to the technical field of extruders, and particularly to an aluminum profile extruder with an efficient cooling system. Background Art

[0002] An aluminum profile extruder is a key device for extruding aluminum alloy into profiles with specific cross-sectional shapes through a die, and is widely used in fields such as construction, automotive, aerospace, and electronics. The aluminum ingot (blank) heated to a plastic state is placed in the extrusion cylinder, and the extrusion rod is pushed by a hydraulic system to force the aluminum ingot through a die with a specific shape to form an aluminum ingot with the required cross-sectional shape. It usually needs to be heated to 400-500°C to reduce the deformation resistance and improve plasticity.

[0003] After the extrusion forming of hollow materials such as aluminum tubes, it is often necessary to quench them to improve their strength. Rapid cooling of the profiles during the extrusion stage can, by precisely regulating the microstructure, improve the strength, surface quality, and production efficiency of aluminum profiles while reducing subsequent processing costs. This is often used in the aluminum material processing of extruders. However, both the water-cooling and air-cooling methods have their deficiencies. The water-cooling method will cause uneven cooling, and in the processing of some alloy materials, it often causes material cracking. The air-cooling method cannot effectively achieve temperature reduction, and the current cooling methods often carry a large amount of oxygen. The presence of oxygen will cause the aluminum profiles to be oxidized during cooling, affecting the finished product quality. Based on this, an aluminum profile extruder with an efficient cooling system is proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art, and to propose an aluminum profile extruder with an efficient cooling system.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An aluminum profile extruder with an efficient cooling system includes a profile processing base and an extrusion device. One end of the profile processing base is provided with a cooling base, a sealed cooling cover is arranged above the cooling base, one end of the sealed cooling cover is connected to a air supply end cover, and the other end is connected to an air outlet end cover. A high-power circulating pump group is arranged at the bottom of the cooling base. One end of the high-power circulating pump group is connected to the air supply end cover through an air supply pipe, and the other end is connected to the air outlet end cover through a condensation component;

[0007] A coolant injection cover is arranged above the air supply end cover. An inner heat exchange ring body is rotatably arranged on the inner wall of the air supply end cover. A driving member for controlling the rotation of the inner heat exchange ring body is arranged in the air supply end cover. The inner heat exchange ring body is composed of mounting end covers at both ends and a water absorption and gas transmission layer arranged between the mounting end covers at both ends. Heat pipes for heat exchange are densely arranged in the inner heat exchange ring body, and the ends of the heat pipes are connected to the inner heat exchange ring body through a self-rotation driving member.

[0008] Preferably, the air supply end cover is hermetically connected to the extrusion device. A V-shaped sleeve is arranged at one end of the air outlet end cover, and a cleaning and fitting rubber ring is arranged on the inner wall of the V-shaped sleeve.

[0009] Preferably, the condensation assembly includes a lower air connection cover connected to the air outlet end cover. Condensation heat exchange pipe networks are densely arranged on the inner wall of the lower air connection cover. The condensation heat exchange pipe networks are externally connected with circulating water. The high-power circulating pump group is connected to the side wall of the lower air connection cover through a connecting pipe.

[0010] Preferably, a reflux collecting pipe is arranged at the bottom of the lower air connection cover. A filter screen is detachably installed on the side wall of the lower air connection cover, and the filter screen is arranged in an inverted "V" shape with a higher middle and lower sides.

[0011] Preferably, fan-shaped through openings penetrating the side walls are arranged above and below the air supply end cover. The fan-shaped through opening at the top is connected to the coolant injection cover, and the fan-shaped through opening at the bottom is connected to the air supply end cover.

[0012] Preferably, the driving member includes a driving motor arranged on the air supply end cover. A driving gear is fixedly connected to the output end of the driving motor. A driving gear ring is fixedly connected to the side wall of the inner heat exchange ring body, and the driving gear is meshed and connected with the driving gear ring.

[0013] Preferably, the self-rotation driving member includes rotating shafts fixedly arranged at both ends of the heat pipe. Transmission cavities are arranged at both ends of the inner heat exchange ring body. The rotating shafts are connected to the inner heat exchange ring body through movable limiting connecting members. Self-rotation gears are arranged at the ends of the rotating shafts, and meshing gear rings meshed with the self-rotation gears are arranged on the inner wall of the transmission cavity.

[0014] Preferably, the movable limiting connecting member includes a limiting opening formed in the upper part inside the transmission cavity. A limiting plate is connected to the inner wall of the limiting opening through a resisting spring. The limiting plate is rotatably connected to the rotating shaft through a connecting rod.

[0015] Preferably, the water absorption and gas transmission layer is in direct contact with the heat pipe, and the water absorption and gas transmission layer has elasticity to ensure momentary fitting with the heat pipe.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. In the present invention, an inert gas is circulated inside a sealed cooling hood to isolate oxygen from contacting the surface of the aluminum material. The V-shaped sleeve and the cleaning fitting rubber ring are designed for dynamic sealing. When discharging, impurities are cleaned synchronously while maintaining an inert environment. Gas-liquid two-phase cooling is adopted, and the rotating internal heat exchange ring body realizes the periodic switching between coolant adsorption and inert gas purging. The heat pipe ensures uniform cooling of the profile and improves the cooling efficiency through the synchronous compound movement of revolution and rotation.

[0018] 2. Compared with the existing water-cooling and air-cooling methods, through the innovative dynamic sealing and rotating heat exchange mechanism, the present invention realizes the integrated production of continuous extrusion and quenching of aluminum profiles while ensuring the metallurgical properties of the materials. The air-cooling process with the participation of water vapor is faster, effectively making up for the poor quenching effect of wind cooling, and the participation of inert gas can ensure that the aluminum profiles are not oxidized. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the assembly drawing of the aluminum profile extruder with an efficient cooling system proposed by the present invention;

[0020] Figure 2 is the three-dimensional structure schematic diagram of the aluminum profile extruder with an efficient cooling system proposed by the present invention;

[0021] Figure 3 is the structure assembly schematic diagram inside the air supply end hood of the aluminum profile extruder with an efficient cooling system proposed by the present invention;

[0022] Figure 4 is the structure schematic diagram of the heat pipe in the aluminum profile extruder with an efficient cooling system proposed by the present invention;

[0023] Figure 5 is the cross-sectional view of the air supply end hood of the aluminum profile extruder with an efficient cooling system proposed by the present invention;

[0024] Figure 6 is Figure 5 the enlarged structure schematic diagram at A in

[0025] Figure 7 is the cross-sectional structure schematic diagram of the air supply end hood of the aluminum profile extruder with an efficient cooling system proposed by the present invention.

[0026] In the figure: 1, profile processing base; 2, extrusion device; 3, cooling base; 4, sealed cooling cover; 5, air supply end cover; 6, air outlet end cover; 7, high-power circulating pump group; 8, air supply pipe; 9, coolant injection cover; 10, installation end cover; 11, water absorption and air transmission layer; 12, heat pipe; 13, V-shaped sleeve; 14, cleaning and fitting rubber ring; 15, lower air intake cover; 16, connecting pipe; 17, return collection pipe; 18, filter screen; 19, fan-shaped through hole; 20, drive motor; 21, drive gear ring; 22, rotating shaft; 23, self-rotating gear; 24, meshing gear ring; 25, limiting plate; 26, connecting rod. Specific implementation mode

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0030] Example, referring to Figures 1 to 7 , an aluminum profile extruder with an efficient cooling system, includes a profile processing base 1 and an extrusion device 2. One end of the profile processing base 1 is provided with a cooling base 3. A sealed cooling cover 4 is arranged above the cooling base 3. One end of the sealed cooling cover 4 is connected with an air supply end cover 5, and the other end is connected with an air outlet end cover 6. Further, the air supply end cover 5 is hermetically connected to the extrusion device 2. One end of the air outlet end cover 6 is provided with a V-shaped sleeve 13, and a cleaning and fitting rubber ring 14 is arranged on the inner wall of the V-shaped sleeve 13.

[0031] Among them, the setting of the V-shaped sleeve 13 can meet the requirement that when the aluminum profile does not discharge, it can be gathered through the cleaning and fitting rubber ring 14 at its end, ensuring that the internal sealed cooling cover 4 is in a relatively sealed state, thus effectively avoiding the entry of air. When the aluminum material discharges, under the action of the V-shaped sleeve 13, it can ensure that the aluminum profile contacts the cleaning and fitting rubber ring 14, so as to achieve sealing in combination with the aluminum profile and also clean the surface layer of the aluminum profile.

[0032] A high-power circulating pump group 7 is arranged at the bottom of the cooling base 3. The high-power circulating pump group 7 is a prior art and will not be elaborated here. The gas in the sealed cooling cover 4 is an inert gas, which is circulated through the high-power circulating pump group 7 to avoid the oxidation of the aluminum material. One end of the high-power circulating pump group 7 is connected to the air supply end cover 5 through an air supply pipe 8, and the other end is connected to the air outlet end cover 6 through a condensation component;

[0033] Furthermore, the condensation component includes a lower air intake cover 15 connected to the air outlet end cover 6. The inner wall of the lower air intake cover 15 is densely provided with a condensation heat exchange pipe network. The condensation heat exchange pipe network is externally connected with circulating water. The high-power circulating pump group 7 is connected to the side wall of the lower air intake cover 15 through a connecting pipe 16. The connecting pipe 16 is connected to the side wall of the lower air intake cover 15, and it generates suction force on the lower air intake cover 15.

[0034] A reflux collecting pipe 17 is arranged at the bottom of the lower air intake cover 15. A filter screen 18 is detachably installed on the side wall of the lower air intake cover 15. The filter screen 18 is arranged in an inverted "V" shape with a higher middle and lower sides. The setting of the filter screen 18 can enable the impurities cleaned from the aluminum profile to flow to the bottom of both ends, thus preventing the filter screen 18 from being blocked.

[0035] A coolant injection cover 9 is arranged above the air supply end cover 5. The coolant can be selected from different materials according to the requirements of the profile. Furthermore, fan-shaped through-holes 19 penetrating the side walls are opened above and below the air supply end cover 5. The fan-shaped through-hole 19 at the top is connected to the coolant injection cover 9, and the fan-shaped through-hole 19 at the bottom is connected to the air supply pipe 8.

[0036] An inner heat exchange ring body is rotatably arranged on the inner wall of the air supply end cover 5, and a driving member for controlling the rotation of the inner heat exchange ring body is arranged in the air supply end cover 5. Furthermore, the driving member includes a driving motor 20 arranged on the air supply end cover 5. The output end of the driving motor 20 is fixedly connected with a driving gear. A driving toothed ring 21 is fixedly connected to the side wall of the inner heat exchange ring body. The driving gear is meshed with the driving toothed ring 21. Under the action of the driving gear, the inner heat exchange ring body connected to the driving toothed ring 21 will rotate. During the rotation process, the water-absorbing and gas-transporting layer 11 arranged on the inner heat exchange ring body will be intermittently connected to the coolant injection cover 9 and the air supply pipe 8, enabling continuous switching between the coolant and the high-pressure air.

[0037] The inner heat exchange ring body is composed of mounting end caps 10 at both ends and a water absorption and gas transmission layer 11 arranged between the mounting end caps 10 at both ends. Heat pipes 12 for heat exchange are densely arranged inside the inner heat exchange ring body. The heat pipes 12 are of the prior art. Typically, a heat pipe 12 is composed of a pipe shell, a wick, and an end cap. After evacuating the inside of the pipe to a negative pressure, an appropriate amount of working liquid is filled, and the wick capillary porous material closely attached to the inner wall of the pipe is filled with liquid and then sealed. Further, the water absorption and gas transmission layer 11 is in direct contact with the heat pipe 12, and the water absorption and gas transmission layer 11 has elasticity to ensure constant contact with the heat pipe 12. The two ends of the heat pipe 12 are arc-shaped to ensure that under the extrusion of the profile, the heat pipe 12 can move outward.

[0038] The end of the heat pipe 12 is connected to the inner heat exchange ring body through a self-rotation driving member. The self-rotation driving member includes rotating shafts 22 fixedly arranged at both ends of the heat pipe 12. Transmission cavities are arranged at both ends of the inner heat exchange ring body. The rotating shafts 22 are connected to the inner heat exchange ring body through movable limiting connecting members. A self-rotation gear 23 is arranged at the end of the rotating shaft 22, and a meshing gear ring 24 meshingly connected with the self-rotation gear 23 is arranged on the inner wall of the transmission cavity.

[0039] It should be noted that the teeth between the meshing gear ring 24 and the self-rotation gear 23 are long enough to always ensure the meshing effect between the meshing gear ring 24 and the self-rotation gear 23 within the movable range of the movable limiting connecting member. Under the action of the driving motor 20, the inner heat exchange ring body will continuously rotate. When rotating, the self-rotation gear 23 connected to the rotating shaft 22 arranged at the end of the heat pipe 12 thereon will continuously rotate, and the inner heat exchange ring body will revolve continuously, so that the heat pipe 12 rotates continuously on the surface of the profile, making the heat exchange more uniform and effectively realizing the removal of impurities on the surface layer of the profile.

[0040] Further, the movable limiting connecting member includes a limiting port opened inside the transmission cavity. The inner wall of the limiting port is connected to a limiting plate 25 through a resisting spring. The limiting plate 25 is rotatably connected to the rotating shaft 22 through a connecting rod 26. The setting of the movable limiting connecting member can ensure that the heat pipe 12 connected to the rotating shaft 22 always has an inward pressure to ensure the pressure between it and the profile.

[0041] In the sealed cooling hood 4 of the present invention, through the setting of the high-power circulating pump group 7, the inert gas is continuously circulated in the sealed cooling hood 4. When the extrusion device 2 discharges the profile, the profile will be fed from one side of the air supply end hood 5, and the other end will be discharged through the V-shaped sleeve 13 provided on the air supply end hood 5. During this process, the inner heat exchange ring body continuously contacts the surface of the profile. Under the action of the driving motor 20, the inner heat exchange ring body will continuously rotate. When rotating, the self-rotating gear 23 connected to the rotating shaft 22 at the end of the heat pipe 12 on it will continuously rotate, and the inner heat exchange ring body will revolve continuously, so that the heat pipe 12 continuously rotates on the surface of the profile, making the heat exchange more uniform, ensuring that the profile is cooled evenly, and avoiding cracks and other situations. Moreover, while the heat pipe 12 performs rapid heat exchange, when the inner heat exchange ring body moves to the upper part, the coolant in the coolant injection hood 9 will communicate with the heat pipe 12 here. The water absorption and gas transmission layer 11 arranged around the heat pipe 12 will absorb water, and the water will continuously evaporate during the contact with the heat pipe 12. When it rotates to the lower part, the heat pipe 12 here will continuously contact the air supply pipe 8. During the contact process, the high-pressure inert gas in the air supply pipe 8 will pass through the water absorption and gas transmission layer 11 around the heat pipe 12. At this time, a large amount of water vapor is driven by the high-pressure gas and transported in the sealed cooling hood 4. During the transportation process, the profile in the middle will be continuously cooled subsequently, so that the effect of continuously cooling the profile with an internal hollow state can be achieved, and the cooling process with water vapor participation is faster, effectively making up for the poor effect of wind cooling quenching. The participation of inert gas can ensure that the aluminum profile is not oxidized.

[0042] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An aluminum profile extrusion press with an efficient cooling system, comprising a profile processing base (1) and an extrusion device (2), characterized in that, One end of the profile processing base (1) is provided with a cooling base (3). Above the cooling base (3), there is a sealed cooling cover (4). One end of the sealed cooling cover (4) is connected to an air supply end cover (5), and the other end is connected to an air outlet end cover (6). At the bottom of the cooling base (3), there is a high-power circulation pump group (7). One end of the high-power circulation pump group (7) is connected to the air supply end cover (5) through an air supply pipe (8), and the other end is connected to the air outlet end cover (6) through a condensation component; Above the air supply end cover (5), there is a coolant injection cover (9). An inner heat exchange ring body is rotatably arranged on the inner wall of the air supply end cover (5). In the air supply end cover (5), there is a driving part for controlling the rotation of the inner heat exchange ring body. The inner heat exchange ring body is composed of installation end covers (10) at both ends and a water absorption and gas transmission layer (11) arranged between the installation end covers (10) at both ends. Inside the inner heat exchange ring body, heat pipes (12) for heat exchange are densely arranged. The ends of the heat pipes (12) are connected to the inner heat exchange ring body through a self-rotation driving part; The air supply end cover (5) is hermetically connected to the extrusion device (2). One end of the air outlet end cover (6) is provided with a V-shaped sleeve (13), and a cleaning and fitting rubber ring (14) is arranged on the inner wall of the V-shaped sleeve (13); The condensation component includes a lower air connection cover (15) connected to the air outlet end cover (6). Condensation heat exchange pipe networks are densely arranged on the inner wall of the lower air connection cover (15). The condensation heat exchange pipe networks are externally connected with circulating water. The high-power circulation pump group (7) is connected to the side wall of the lower air connection cover (15) through a connecting pipe (16); At the bottom of the lower air connection cover (15), there is a reflux collection pipe (17). A filter screen (18) is detachably installed on the side wall of the lower air connection cover (15). The filter screen (18) is arranged in an inverted "V" shape with a high middle and low sides; Fan-shaped through holes (19) penetrating the side wall are opened above and below the air supply end cover (5). The fan-shaped through hole (19) at the top is connected to the coolant injection cover (9), and the fan-shaped through hole (19) at the bottom is connected to the air supply pipe (8).

2. The aluminum profile extruder with an efficient cooling system according to claim 1, characterized in that, The driving part includes a driving motor (20) arranged on the air supply end cover (5). The output end of the driving motor (20) is fixedly connected with a driving gear. A driving gear ring (21) is fixedly connected to the side wall of the inner heat exchange ring body. The driving gear is meshed and connected with the driving gear ring (21); 3. The aluminum profile extruder with an efficient cooling system according to claim 1, characterized in that, The self-rotation driving part includes rotating shafts (22) fixedly arranged at both ends of the heat pipe (12). Transmission cavities are arranged at both ends of the inner heat exchange ring body. The rotating shafts (22) are connected to the inner heat exchange ring body through movable limit connecting parts. Self-rotation gears (23) are arranged at the ends of the rotating shafts (22). Meshing gear rings (24) meshed with the self-rotation gears (23) are arranged on the inner walls of the transmission cavities.

4. The aluminum profile extruder with an efficient cooling system according to claim 3, characterized in that The movable limit connecting part includes a limit opening opened inside the upper part of the transmission cavity. A limit plate (25) is connected to the inner wall of the limit opening through a resisting spring. The limit plate (25) is rotatably connected to the rotating shaft (22) through a connecting rod (26).

5. The aluminum profile extruder with an efficient cooling system according to claim 1, characterized in that, The water-absorbing gas-transporting layer (11) is in direct contact with the heat pipe (12), and the water-absorbing gas-transporting layer (11) has elasticity to ensure constant contact with the heat pipe (12).

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