Aluminum profile extruding machine with efficient cooling system

Abstract

The invention discloses an aluminum profile extruding machine with an efficient cooling system, and belongs to the technical field of extruding machines, the aluminum profile extruding machine comprises a profile processing base and an extruding 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 with an air supply end cover, and the other end of the sealed cooling cover is connected with an air outlet end cover. A high-power circulating pump set is arranged at the bottom of the cooling base, one end of the high-power circulating pump set is connected with the air supply end cover through an air supply pipe, and the other end of the high-power circulating pump set is connected with the air outlet end cover through a condensation assembly. Through an innovative dynamic sealing and rotary heat exchange mechanism, continuous extrusion and quenching integrated production of the aluminum profile is achieved while the metallurgical performance of materials is guaranteed, the air cooling process in which water vapor participates is quicker, the situation that the wind cooling quenching effect is poor is effectively made up, and the production efficiency is improved. And the participation of the inert gas can ensure that the aluminum profile is prevented from being oxidized.

Description

Technical Field

[0001] The invention relates to the technical field of extruders, in particular to an aluminum profile extruder with a high-efficiency cooling system. Background Art

[0002] Aluminum profile extruder is a key equipment used to extrude aluminum alloy into profiles with specific cross-sectional shapes through a die. It is widely used in the fields of construction, automobiles, aerospace, electronics, etc. The aluminum ingot (blank) heated to a plastic state is placed in the extrusion barrel, and the extrusion rod is pushed by the hydraulic system to force the aluminum ingot to pass through a die of a specific shape to form the desired cross-sectional shape. The aluminum ingot usually needs to be heated to 400~500℃ to reduce deformation resistance and improve plasticity.

[0003] After the extrusion of hollow materials such as aluminum tubes, they often need to be quenched to improve their strength. Rapid cooling of the profiles during the extrusion stage can improve the strength, surface quality and production efficiency of the aluminum profiles by accurately controlling the microstructure, while reducing the subsequent processing costs. It is often used in aluminum processing of extruders, but both water cooling and air cooling have their shortcomings. The water cooling method will cause uneven cooling, which often causes material cracking in the processing of some alloy materials, while the air cooling method cannot effectively achieve cooling, and the current cooling method often carries a large amount of oxygen. The presence of oxygen will cause the aluminum profile to be oxidized during cooling, affecting the quality of the finished product. 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 a high-efficiency cooling system.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: An aluminum profile extruder with an efficient cooling system comprises a profile processing base and an extrusion device, wherein a cooling base is arranged at one end of the profile processing base, a sealed cooling cover is arranged above the cooling base, one end of the sealed cooling cover is connected to an air supply end cover, and the other end is connected to 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 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 condensing assembly; A coolant injection hood is arranged above the air supply end hood, an inner heat exchange ring body is rotatably arranged on the inner wall of the air supply end hood, a driving member for controlling the rotation of the inner heat exchange ring body is arranged in the air supply end hood, the inner heat exchange ring body is composed of mounting end covers at both ends and a water absorbing and air conveying 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-rotating driving member.

[0006] Preferably, the air supply end cover is sealed and connected to the extrusion device, and a V-shaped sleeve is provided at one end of the air outlet end cover, and a cleaning and fitting rubber ring is provided on the inner wall of the V-shaped sleeve.

[0007] Preferably, the condensation assembly includes a lower air hood connected to the air outlet end cover, the inner wall of the lower air hood is densely covered with a condensation heat exchange pipe network, the condensation heat exchange pipe network is externally connected to circulating water, and the high-power circulation pump group is connected to the side wall of the lower air hood through a connecting pipe.

[0008] Preferably, a reflux collection pipe is provided at the bottom of the lower air receiving hood, and a filter screen is detachably installed on the side wall of the lower air receiving hood, and the filter screen is arranged in an inverted "V" shape with a high middle and low sides.

[0009] Preferably, fan-shaped through-holes penetrating the side walls are provided above and below the air supply end cover, the fan-shaped through-hole located at the top is connected to the coolant injection cover, and the fan-shaped through-hole located at the bottom is connected to the air supply end cover.

[0010] Preferably, the driving member comprises a driving motor arranged on the air supply end cover, the output end of the driving motor is fixedly connected with a driving gear, the side wall of the inner heat exchange ring body is fixedly connected with a driving gear ring, and the driving gear is meshingly connected with the driving gear ring.

[0011] Preferably, the self-rotating driving component includes a rotating shaft fixedly arranged at both ends of the heat pipe, a transmission cavity is arranged at both ends of the inner heat exchange ring body, the rotating shaft is connected to the inner heat exchange ring body through a movable limiting connecting member, a self-rotating gear is arranged at the end of the rotating shaft, and an engaging gear ring meshingly connected with the self-rotating gear is arranged on the inner wall of the transmission cavity.

[0012] Preferably, the movable limiting connection member comprises a limiting opening opened inside the transmission cavity, the inner wall of the limiting opening is connected to a limiting plate via an abutment spring, and the limiting plate is rotatably connected to the rotating shaft via a connecting rod.

[0013] Preferably, the water absorption and air transmission layer is in direct contact with the heat pipe, and the water absorption and air transmission layer is elastic, which can ensure constant contact with the heat pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention circulates inert gas in a sealed cooling hood to isolate oxygen from contacting the aluminum surface. The V-shaped sleeve and the cleaning rubber ring are dynamically sealed to simultaneously clean impurities and maintain an inert environment during discharge. Gas-liquid two-phase cooling is adopted, and a rotating inner heat exchange ring body is used to achieve periodic switching between coolant adsorption and inert gas purging. The heat pipe uses a synchronous composite motion of revolution and rotation to ensure uniform cooling of the profile while improving the cooling efficiency.

[0015] 2. Compared with the existing water cooling and air cooling methods, the present invention realizes the integrated production of continuous extrusion and quenching of aluminum profiles while ensuring the metallurgical properties of the material through innovative dynamic sealing and rotary heat exchange mechanisms. The air cooling process with the participation of water vapor is faster, which effectively compensates for the poor effect of wind cooling and quenching. The participation of inert gas can ensure that oxidation of aluminum profiles is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is an assembly diagram of the aluminum profile extruder with a high-efficiency cooling system proposed by the present invention; Figure 2 A schematic diagram of the three-dimensional structure of an aluminum profile extruder with a high-efficiency cooling system proposed by the present invention; Figure 3 This is a schematic diagram of the structural assembly inside the air supply end cover of the aluminum profile extruder with a high-efficiency cooling system proposed by the present invention; Figure 4 This is a schematic diagram of the structure of a heat pipe in an aluminum profile extruder with a high-efficiency cooling system proposed by the present invention; Figure 5 A cross-sectional view of an air supply end hood in an aluminum profile extruder with a high-efficiency cooling system proposed by the present invention; Figure 6 for Figure 5 A schematic diagram of the enlarged structure at A in the middle; Figure 7 This is a schematic cross-sectional structure diagram of the air supply end hood in the aluminum profile extruder with a high-efficiency cooling system proposed by the present invention.

[0017] In the figure: 1. Profile processing base; 2. Extrusion device; 3. Cooling base; 4. Sealed cooling hood; 5. Air supply end hood; 6. Air outlet end hood; 7. High-power circulation pump group; 8. Air supply pipe; 9. Coolant injection hood; 10. Install end cover; 11. Water absorption and air transmission layer; 12. Heat pipe; 13. V-shaped sleeve; 14. Clean and fit rubber ring; 15. Lower air hood; 16. Connecting pipe; 17. Reflux collection pipe; 18. Filter; 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. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are 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 position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Example, see Figures 1 to 7 An aluminum profile extruder with an efficient cooling system includes a profile processing base 1 and an extrusion device 2. A cooling base 3 is arranged at one end of the profile processing base 1, and a sealed cooling cover 4 is arranged above the cooling base 3. 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. Further, the air supply end cover 5 is sealed and connected to the extrusion device 2, and one end of the air outlet end cover 6 is provided with a V-shaped sleeve 13, and the inner wall of the V-shaped sleeve 13 is provided with a cleaning and fitting rubber ring 14.

[0022] Among them, the setting of the V-shaped sleeve 13 can meet the requirement that when the aluminum profile is not discharged, it can be gathered together through the cleaning and fitting rubber ring 14 at its end, and ensure that the internal sealed cooling cover 4 is in a relatively sealed state, thereby effectively preventing air from entering. When the aluminum profile is discharged, under the action of the V-shaped sleeve 13, it can ensure that the aluminum profile is in contact with the cleaning and fitting rubber ring 14, so as to achieve sealing with the aluminum profile combination while also cleaning the surface of the aluminum profile.

[0023] A high-power circulation pump group 7 is provided at the bottom of the cooling base 3. The high-power circulation pump group 7 is a prior art and will not be described in detail here. The gas in the sealed cooling cover 4 is an inert gas, which is circulated through the high-power circulation pump group 7 to avoid oxidation of the aluminum material. One end of the high-power circulation pump group 7 is connected to the air supply end cover 5 through the air supply pipe 8, and the other end is connected to the air outlet end cover 6 through the condensation assembly. Furthermore, the condensation component includes a lower air hood 15 connected to the air outlet end cover 6, the inner wall of the lower air hood 15 is densely covered with a condensation heat exchange pipe network, the condensation heat exchange pipe network is externally connected to circulating water, and the high-power circulation pump group 7 is connected to the side wall of the lower air hood 15 through a connecting pipe 16, and the connecting pipe 16 is connected to the side wall of the lower air hood 15, which generates suction on the lower air hood 15.

[0024] A reflux collection pipe 17 is arranged at the bottom of the lower air hood 15, and a filter screen 18 is detachably installed on the side wall of the lower air hood 15. The filter screen 18 is arranged in an inverted "V" shape with a high middle and low sides. The arrangement of the filter screen 18 can realize that the impurities cleaned from the aluminum profile flow to the bottom of both ends, thereby not clogging the filter screen 18.

[0025] A coolant injection hood 9 is arranged above the air supply end hood 5. Different materials of the coolant can be selected according to the requirements of the profile. Furthermore, fan-shaped through-holes 19 penetrating the side wall are opened above and below the air supply end hood 5. The fan-shaped through-hole 19 located at the top is connected to the coolant injection hood 9, and the fan-shaped through-hole 19 located at the bottom is connected to the air supply pipe 8.

[0026] 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. Further, the driving member includes a driving motor 20 arranged on the air supply end cover 5, and a driving gear is fixedly connected to the output end of the driving motor 20, and a driving gear ring 21 is fixedly connected to the side wall of the inner heat exchange ring body. The driving gear is meshed with the driving gear ring 21, and the inner heat exchange ring body connected to the driving gear ring 21 is driven to rotate under the action of the driving gear. During the rotation process, the water absorption and air transmission layer 11 arranged on the inner heat exchange ring body will be intermittently connected with the coolant injection cover 9 and the air supply pipe 8, so as to realize continuous switching between the coolant and the high-pressure air.

[0027] The inner heat exchange ring body is composed of mounting end covers 10 at both ends and a water absorption and air transmission layer 11 arranged between the mounting end covers 10 at both ends. The inner heat exchange ring body is densely provided with heat pipes 12 for heat exchange. The heat pipes 12 are of prior art. A typical heat pipe 12 is composed of a tube shell, a liquid absorption core and an end cover. After the tube is evacuated to a negative pressure, it is filled with an appropriate amount of working liquid, so that the capillary porous material of the liquid absorption core close to the inner wall of the tube is filled with liquid and then sealed. Furthermore, the water absorption and air transmission layer 11 is in direct contact with the heat pipe 12, and the water absorption and air transmission layer 11 is elastic, which can ensure that it is always in contact with the heat pipe 12. The two ends of the heat pipe 12 are arc-shaped, which can ensure that the heat pipe 12 can move toward the periphery under the extrusion of the profile.

[0028] The ends of the heat pipe 12 are connected to the inner heat exchange ring body through a self-rotating driving component, and the self-rotating driving component includes a rotating shaft 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 shaft 22 is connected to the inner heat exchange ring body through a movable limiting connecting component. A self-rotating gear 23 is arranged at the end of the rotating shaft 22, and a meshing gear ring 24 meshingly connected with the self-rotating gear 23 is arranged on the inner wall of the transmission cavity.

[0029] It is worth noting that the teeth between the meshing gear ring 24 and the self-rotating gear 23 are long enough. Within the active range of the movable limit connecting piece, the meshing effect between the meshing gear ring 24 and the self-rotating gear 23 can be ensured at all times. Under the action of the driving motor 20, the inner heat exchange ring body will continuously rotate. During rotation, the self-rotating gear 23 connected to the rotating shaft 22 set at the end of the upper heat pipe 12 will continuously rotate, while the inner heat exchange ring body will continuously revolve, so that the heat pipe 12 can continuously rotate on the surface of the profile, making the heat exchange more uniform and effectively realizing the removal of impurities on the surface of the profile.

[0030] Furthermore, the movable limit connecting piece includes a limit opening opened inside the transmission cavity, the inner wall of the limit opening is connected to the limit plate 25 through a resistance spring, and the limit plate 25 is rotatably connected to the rotating shaft 22 through a connecting rod 26. The setting of the movable limit connecting piece can ensure that the heat pipe 12 connected to the rotating shaft 22 always has an inward pressure, ensuring the pressure between the profile.

[0031] In the sealed cooling cover 4, the high-power circulation pump group 7 is provided to realize the continuous circulation of the inert gas in the sealed cooling cover 4. When the extrusion device 2 is discharging the profile, the profile will be fed from one side of the air supply end cover 5, and the other end will be discharged through the V-shaped sleeve 13 arranged on the air supply end cover 5. In this process, the inner heat exchange ring body is in continuous contact with the surface of the profile. Under the action of the driving motor 20, the inner heat exchange ring body will continuously rotate. During the rotation, the self-rotating gear 23 connected to the rotating shaft 22 arranged at the end of the heat pipe 12 on it will continuously rotate, and the inner heat exchange ring body will continuously revolve, so that the heat pipe 12 can continuously rotate on the surface of the profile, making the heat exchange more uniform, ensuring that the profile is evenly cooled, and avoiding the occurrence of cracks, etc., and while the heat pipe 12 is rapidly exchanging heat, when the inner heat exchange ring body moves to When it is at the top, the coolant in the coolant injection cover 9 will be connected with the heat pipe 12 here, and the water absorption and air transmission layer 11 arranged around the heat pipe 12 will absorb moisture, and the moisture will continue to evaporate during the contact with the heat pipe 12. When it rotates to the bottom, the heat pipe 12 here will be in constant contact with 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 air 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 cover 4. During the transportation process, the profile in the middle will be continuously cooled down, so as to achieve the effect of continuous cooling of the profile in the hollow state inside, and the cooling process with the participation of water vapor is faster, which effectively makes up for the poor effect of wind cooling and quenching. The participation of inert gas can ensure that oxidation of the aluminum profile is avoided.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An aluminum profile extruder with an efficient cooling system, comprising a profile processing base (1) and an extrusion device (2), characterized in that: A cooling base (3) is provided at one end of the profile processing base (1), a sealed cooling cover (4) is provided above the cooling base (3), 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), a high-power circulation pump group (7) is provided at the bottom of the cooling base (3), 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 condensing assembly; A coolant injection hood (9) is arranged above the air supply end hood (5); an inner heat exchange ring body is rotatably arranged on the inner wall of the air supply end hood (5); a driving member for controlling the rotation of the inner heat exchange ring body is arranged inside the air supply end hood (5); the inner heat exchange ring body is composed of mounting end covers (10) at both ends and a water absorption and air transmission layer (11) arranged between the mounting end covers (10) at both ends; heat pipes (12) for heat exchange are densely arranged inside the inner heat exchange ring body; the ends of the heat pipes (12) are connected to the inner heat exchange ring body via a self-rotating driving member.

2. The aluminum profile extruder with a high-efficiency cooling system according to claim 1, characterized in that: The air supply end cover (5) is sealedly connected to the extrusion device (2); one end of the air outlet end cover (6) is provided with a V-shaped sleeve (13); and the inner wall of the V-shaped sleeve (13) is provided with a cleaning and fitting rubber ring (14).

3. The aluminum profile extruder with a high-efficiency cooling system according to claim 1, characterized in that: The condensation assembly comprises a lower air hood (15) connected to the air outlet hood (6); the inner wall of the lower air hood (15) is densely covered with a condensation heat exchange pipe network; the condensation heat exchange pipe network is externally connected to circulating water; and the high-power circulation pump group (7) is connected to the side wall of the lower air hood (15) via a connecting pipe (16).

4. The aluminum profile extruder with a high-efficiency cooling system according to claim 3, characterized in that: A reflux collection pipe (17) is arranged at the bottom of the lower air receiving hood (15), and a filter screen (18) is detachably mounted on the side wall of the lower air receiving hood (15), wherein the filter screen (18) is arranged in an inverted "V" shape with a high middle and low sides.

5. The aluminum profile extruder with a high-efficiency cooling system according to claim 1, characterized in that: The air supply end cover (5) is provided with fan-shaped through-holes (19) penetrating the side wall at the top and the bottom, the fan-shaped through-hole (19) located at the top is connected to the coolant injection cover (9), and the fan-shaped through-hole (19) located at the bottom is connected to the air supply pipe (8).

6. The aluminum profile extruder with a high-efficiency cooling system according to claim 1, characterized in that: The driving member comprises a driving motor (20) arranged on the air supply end cover (5), the output end of the driving motor (20) being fixedly connected to a driving gear, the side wall of the inner heat exchange ring body being fixedly connected to a driving gear ring (21), and the driving gear being meshingly connected to the driving gear ring (21).

7. The aluminum profile extruder with a high-efficiency cooling system according to claim 1, characterized in that: The self-rotating driving member comprises a rotating shaft (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 shaft (22) is connected to the inner heat exchange ring body via a movable limit connection member; a self-rotating gear (23) is arranged at the end of the rotating shaft (22); and a meshing gear ring (24) meshingly connected to the self-rotating gear (23) is arranged on the inner wall of the transmission cavity.

8. The aluminum profile extruder with a high-efficiency cooling system according to claim 7, characterized in that: The movable limiting connection member comprises a limiting opening formed inside the transmission cavity, the inner wall of the limiting opening being connected to a limiting plate (25) via a resisting spring, and the limiting plate (25) being rotatably connected to the rotating shaft (22) via a connecting rod (26).

9. The aluminum profile extruder with a high-efficiency cooling system according to claim 1, characterized in that: 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) is elastic, thereby ensuring that it is always in contact with the heat pipe (12).

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