An extrusion forming process for aluminum alloy profiles

Abstract

The present invention relates to an extrusion forming process for aluminum alloy profiles. The specific operation steps include: Step 1: Put the aluminum alloy raw material into a heating furnace for heating, and then perform a bar cutting operation on the heated aluminum alloy raw material through a cutting tooling to obtain an aluminum alloy bar of a set length; Step 2: First preheat the aluminum alloy bar through an electromagnetic coil in an extrusion device, and then extrude and form the preheated aluminum alloy bar to obtain an extruded part; Step 3: Use a traction device to transport the extruded part to an aging furnace for aging treatment for a period of time to obtain a finished aluminum alloy profile; When the mounting plate is directly above the loading frame, it is clamped with the mold in the loading frame through a card slot, and then the card slot is electrified so that the card slot adsorbs the mold. By contracting the first hydraulic push rod and extending the second hydraulic push rod, the operation of avoiding manual mold replacement is realized, reducing the labor consumption while improving the efficiency of mold replacement.

Description

Technical Field

[0001] The present invention relates to the technical field of metal processing, and specifically to an extrusion forming process for aluminum alloy profiles. Background Art

[0002] Aluminum profile extrusion is a plastic processing method in which an external force is applied to a metal blank placed in a container (extrusion cylinder) to make it flow out from a specific die hole to obtain a required cross-sectional shape and size. In the existing process of die replacement, the process is relatively cumbersome and requires manual replacement, which wastes human resources. At the same time, manual replacement is likely to cause damage to the die, and the replacement speed is slow, affecting the production efficiency of aluminum alloy profiles. At the same time, in the existing extrusion process, after the aluminum alloy rod is cut, there is a temperature difference between the surface temperature of the aluminum alloy rod and the core temperature of the die, which affects the extrusion efficiency of the aluminum alloy rod. Summary of the Invention

[0003] The technical problems solved by this solution are as follows:

[0004] (1) How to set up a replacement mechanism so that when the mounting plate is directly above the loading frame, it is clamped with the die in the loading frame through the card slot, and then the card slot is electrified to make the card slot adsorb the die. By contracting the first hydraulic push rod and extending the second hydraulic push rod, the operation of manually replacing the die is avoided, reducing labor consumption while improving the efficiency of die replacement and reducing the probability of die damage during die replacement;

[0005] (2) How to set up a heat preservation mechanism so that when the second hydraulic cylinder is in a contracted state, the electromagnetic coil is electrified, and then when the output end of the first hydraulic cylinder extends to push the aluminum alloy rod into the limiting hole, the aluminum alloy rod is heated by the electromagnetic coil to avoid the difference between the internal temperature and the external temperature of the aluminum alloy rod during extrusion, which affects the extrusion efficiency;

[0006] (3) How to set up a transmission unit so that after the aluminum alloy rod is extruded, the first hydraulic cylinder resets, the output end of the second hydraulic cylinder extends, and the remaining material of the aluminum alloy rod is cut in cooperation with the cutter. At the same time, the rotating plate is flipped to drive the electromagnetic coil to move upward to prevent the debris generated during the cutting of the remaining material of the aluminum alloy rod from damaging the electromagnetic coil.

[0007] The object of the present invention can be achieved by the following technical solutions: An extrusion forming process for aluminum alloy profiles, and the specific operation steps include:

[0008] Step 1: Put the aluminum alloy raw material into a heating furnace for heating, and then cut the heated aluminum alloy raw material through a cutting tooling to obtain an aluminum alloy rod with a set length;

[0009] Step 2: Preheat the aluminum alloy rod first through the electromagnetic coil in the extrusion equipment, and extrude and form the preheated aluminum alloy rod to obtain an extruded part;

[0010] Step 3: Use the traction equipment to transport the extruded part into the aging furnace for aging treatment for a period of time to obtain the finished aluminum alloy profile. At the same time, perform the die replacement operation through the replacement mechanism in the extrusion equipment.

[0011] A further technical improvement of the present invention is that: in Step 1, the heated aluminum alloy raw material is between 480 - 520 °C.

[0012] A further technical improvement of the present invention is that: in Step 2, preheat the aluminum alloy rod through the electromagnetic coil in the extrusion equipment to ensure that it is still between 480 - 500 °C during extrusion, and the preheating time of the electromagnetic coil for the aluminum alloy rod is 10 s.

[0013] A further technical improvement of the present invention is that: in Step 2, extend the extending end of the second hydraulic cylinder in the extrusion equipment, so that the cutting knife cuts off the remaining aluminum alloy rod, and at the same time, raise the electromagnetic coil through the transmission unit in the extrusion equipment.

[0014] A further technical improvement of the present invention is that: in Step 3, the magnetic force is generated by energizing the card slot in the extrusion equipment to adsorb the die, and then with the power of the first hydraulic push rod, the card slot moves the die to directly above the loading frame, and then perform the die installation operation.

[0015] A further technical improvement of the present invention is that: in Step 3, move through the moving tooling in the extrusion equipment to make the position of the card slot correspond to that of other dies.

[0016] A further technical improvement of the present invention is that: in Step 3, the aging treatment time is 2.5 - 4 hours, the aging treatment temperature is 190 °C, and after the aging treatment, the aluminum alloy profile is air-cooled.

[0017] A further technical improvement of the present invention lies in that: the extrusion device includes a housing, a partition is fixedly installed in the middle of the housing, a first hydraulic cylinder for extruding an aluminum alloy rod is fixedly arranged on one side of the partition, the extending end of the first hydraulic cylinder movably penetrates through the partition, a feeding tooling for feeding is slidably arranged on the other side of the partition, the feeding tooling is a prior art, a support seat for supporting the aluminum alloy rod is arranged on the top of the feeding tooling, a fixing frame is arranged on one side of the support seat, a loading frame for loading a mold is slidably arranged on the fixing frame, a limiting block is fixedly installed on the side of the fixing frame facing the feeding tooling, a limiting hole is opened at a position corresponding to the aluminum alloy rod on the limiting block, a heat preservation mechanism for heating the end of the aluminum alloy rod is arranged between the limiting block and the feeding tooling, a fixing plate is fixedly installed on the front surface of the housing, and a replacement mechanism for replacing the mold is arranged on the fixing plate.

[0018] A further technical improvement of the present invention lies in that: the replacement mechanism includes a moving tooling slidably arranged on the fixing plate, the moving tooling is a prior art, a support frame is fixedly installed on the top of the moving tooling, a first rotating rod and a second rotating rod are hinged on the support frame, a first chute is opened in the middle of the first rotating rod, one ends of the first rotating rod and the second rotating rod are jointly hinged with a mounting plate, an adsorption unit for installing and disassembling the mold is arranged on the mounting plate, a first hydraulic push rod is also hinged on the support frame, the extending end of the first hydraulic push rod is fixedly connected with a first shifting rod, and the first shifting rod is movably connected with the first chute.

[0019] A further technical improvement of the present invention lies in that: the adsorption unit includes a second hydraulic push rod fixedly installed on the mounting plate, a clamping groove for transporting the mold is fixedly installed at the extending end of the second hydraulic push rod, a limiting groove for limiting the second hydraulic push rod is arranged between the second hydraulic push rod and the mounting plate, and the material of the clamping groove is an electromagnet; when the mold needs to be replaced, the loading frame moves from the fixing frame to a set position, the first hydraulic push rod extends to the longest, the mounting plate is located directly above the loading frame, the second hydraulic push rod extends, the clamping groove is clamped with the mold in the loading frame, then the clamping groove is electrified, so that the clamping groove adsorbs the mold, the second hydraulic push rod contracts, and then the first hydraulic push rod contracts to the shortest, the mounting plate contacts the support block, the second hydraulic push rod extends, the mold is placed into an empty storage groove, the moving tooling is moved, the clamping groove is clamped with other molds, and then the process of replacing the mold is completed, avoiding manual replacement of the mold, reducing labor consumption while improving the efficiency of replacing the mold, and reducing the probability of mold damage during mold replacement.

[0020] A further technical improvement of the present invention lies in that: the heat preservation mechanism includes a mounting base, an electromagnetic coil for heating the aluminum alloy rod is fixedly installed at the bottom of the mounting base, guide rods are fixedly connected to the four corners at the top of the mounting base, the tops of the four guide rods all movably penetrate through the outer shell, a second hydraulic cylinder is fixedly inserted on the outer shell on one side of the mounting base, the output end of the second hydraulic cylinder is fixedly connected with a cutter for cutting the surplus material of the aluminum alloy rod, and a transmission unit for driving the electromagnetic coil to lift is arranged between the output end of the second hydraulic cylinder and the mounting base.

[0021] A further technical improvement of the present invention lies in that: the transmission unit includes a mounting frame fixedly connected to the outer shell, a rotating plate is rotatably arranged on the mounting frame, second chutes are opened at both ends of the rotating plate, second push rods are fixedly connected to the output end of the second hydraulic cylinder and the mounting base respectively, and the two second push rods are respectively movably connected with the corresponding second chutes; when the second hydraulic cylinder is in a contracted state, the electromagnetic coil is energized, and then during the process of the output end of the first hydraulic cylinder extending to push the aluminum alloy rod into the limiting hole, the aluminum alloy rod is heated by the electromagnetic coil to prevent the internal temperature of the aluminum alloy rod from being different from the external temperature during extrusion, which affects the extrusion efficiency; after the aluminum alloy rod is extruded, the first hydraulic cylinder resets, the output end of the second hydraulic cylinder extends, and the cutter is used to cut the surplus material of the aluminum alloy rod. At the same time, the rotating plate is flipped to drive the electromagnetic coil to move upward to prevent the debris generated during the cutting of the surplus material of the aluminum alloy rod from damaging the electromagnetic coil.

[0022] A further technical improvement of the present invention lies in that: a storage mechanism is arranged below the mounting plate, the storage mechanism includes a bottom plate, a support block for limiting the mounting plate is fixedly installed at the top of the bottom plate, a plurality of storage grooves for storing molds are arranged on one side of the support block, the plurality of storage grooves are arranged in a straight line, and the position of one of the storage grooves corresponds to the position of the clamping groove.

[0023] A further technical improvement of the present invention lies in that: a discharge port is opened at the position of the outer shell corresponding to the fixed frame.

[0024] Compared with the prior art, the beneficial effects of the present invention are:

[0025] When the present invention is in use and the mold needs to be replaced, the loading frame moves from the fixed frame to the set position. The first hydraulic push rod extends to the longest, and the mounting plate is located directly above the loading frame. By extending the second hydraulic push rod, the clamping groove is clamped with the mold in the loading frame, and then the clamping groove is electrified to make the clamping groove adsorb the mold. The second hydraulic push rod contracts, and then the first hydraulic push rod contracts to the shortest. The mounting plate contacts the support block. By extending the second hydraulic push rod, the mold is placed into the empty storage slot. By moving the moving tooling, the clamping groove is clamped with other molds, and then the process of replacing the mold is completed, avoiding manual replacement of the mold, reducing labor consumption, improving the efficiency of replacing the mold, and reducing the probability of mold damage when replacing the mold.

[0026] When the present invention is in use, when the second hydraulic cylinder is in a contracted state, the electromagnetic coil is electrified, and then the output end of the first hydraulic cylinder extends to push the aluminum alloy rod into the limiting hole. During this process, the aluminum alloy rod is heated by the electromagnetic coil to avoid the difference between the internal temperature and the external temperature of the aluminum alloy rod during extrusion, which affects the extrusion efficiency.

[0027] When the present invention is in use, after the aluminum alloy rod is extruded, the first hydraulic cylinder resets. The output end of the second hydraulic cylinder extends to cooperate with the cutter to cut the surplus material of the aluminum alloy rod. At the same time, the rotating plate flips, driving the electromagnetic coil to move upward to prevent the debris generated during the cutting of the surplus material of the aluminum alloy rod from damaging the electromagnetic coil. Brief Description of the Drawings

[0028] For the convenience of those skilled in the art to understand, the present invention will be further described below with reference to the accompanying drawings.

[0029] Figure 1 It is a schematic flow chart of the overall processing technology of the present invention;

[0030] Figure 2 It is a schematic structural diagram of the extrusion equipment of the present invention;

[0031] Figure 3 It is a schematic structural diagram of the replacement mechanism of the present invention;

[0032] Figure 4 For the present invention Figure 3 The enlarged view of the structure at A in

[0033] Figure 5 It is a schematic structural diagram of the heat preservation mechanism of the present invention;

[0034] Figure 6 It is a three-dimensional schematic structural diagram of the storage mechanism of the present invention.

[0035] In the figure: 1, partition board; 2, first hydraulic cylinder; 3, feeding tooling; 4, fixed plate; 5, storage mechanism; 6, replacement mechanism; 7, fixed frame; 8, loading frame; 9, limit block; 10, outer shell; 11, heat preservation mechanism; 501, support block; 502, bottom plate; 503, storage tank; 601, first hydraulic push rod; 602, second rotating rod; 603, support frame; 604, moving tooling; 605, mounting plate; 606, adsorption unit; 607, first rotating rod; 6061, second hydraulic push rod; 6062, clamping groove; 6063, limiting groove; 1101, guide rod; 1102, second shifting rod; 1103, mounting seat; 1104, electromagnetic coil; 1105, cutting tool; 1106, rotating plate; 1107, second hydraulic cylinder. Detailed implementation manners

[0036] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0037] Please refer to Figure 1 As shown in the figure, an extrusion forming process for aluminum alloy profiles, the specific operation steps include:

[0038] Step 1: Put the aluminum alloy raw material into a heating furnace for heating, and then perform a bar cutting operation on the heated aluminum alloy raw material through a cutting tooling to obtain an aluminum alloy bar with a set length;

[0039] Step 2: First preheat the aluminum alloy bar through the electromagnetic coil 1104 in the extrusion equipment, and extrude the preheated aluminum alloy bar to obtain an extruded part;

[0040] Step 3: Use a traction device to transport the extruded part to an aging furnace for aging treatment for a period of time to obtain a finished aluminum alloy profile, and at the same time perform a die replacement operation through the replacement mechanism 6 in the extrusion equipment.

[0041] Please refer to Figure 1As shown in the figure, in the above step one, the heated aluminum alloy raw material is between 480 - 520 °C; in step two, the electromagnetic coil 1104 in the extrusion equipment preheats the aluminum alloy rod to ensure that it is still between 480 - 500 °C during extrusion, and the preheating time of the electromagnetic coil 1104 for the aluminum alloy rod is 10 s; in step two, the extending end of the second hydraulic cylinder 1107 in the extrusion equipment extends, so that the cutting knife 1105 cuts off the remaining aluminum alloy rod, and at the same time, the electromagnetic coil 1104 is lifted by the transmission unit in the extrusion equipment; in step three, the clamping groove 6062 in the extrusion equipment is electrified to generate magnetism to adsorb the mold, and then with the power of the first hydraulic push rod 601, the clamping groove 6062 moves the mold to directly above the loading frame 8, and then the operation of installing the mold is carried out; in step three, the clamping groove 6062 is moved through the moving tooling 604 in the extrusion equipment to make its position correspond to that of other molds; in step three, the aging treatment time is 2.5 - 4 hours, and the aging treatment temperature is 190 °C. After the aging treatment, the aluminum alloy profile is air-cooled.

[0042] Please refer to Figure 2 As shown in the figure, the above extrusion equipment includes a housing 10. A partition 1 is fixedly installed in the middle of the housing 10. A first hydraulic cylinder 2 for extruding the aluminum alloy rod is fixedly arranged on one side of the partition 1. The extending end of the first hydraulic cylinder 2 movably penetrates through the partition 1. A feeding tooling 3 for feeding is slidably arranged on the other side of the partition 1. The feeding tooling 3 is a prior art. A support seat for supporting the aluminum alloy rod is arranged on the top of the feeding tooling 3. A fixing frame 7 is arranged on one side of the support seat. A loading frame 8 for loading the mold is slidably arranged on the fixing frame 7. A limiting block 9 is fixedly installed on the side of the fixing frame 7 facing the feeding tooling 3. A limiting hole is opened at the position of the limiting block 9 corresponding to the aluminum alloy rod. A heat preservation mechanism 11 for heating the end of the aluminum alloy rod is arranged between the limiting block 9 and the feeding tooling 3. A fixing plate 4 is fixedly installed on the front of the housing 10. A replacement mechanism 6 for replacing the mold is arranged on the fixing plate 4.

[0043] Please refer to Figure 3 As shown in the figure, the above replacement mechanism 6 includes a moving tooling 604 slidably arranged on the fixing plate 4. The moving tooling 604 is a prior art. A support frame 603 is fixedly installed on the top of the moving tooling 604. A first rotating rod 607 and a second rotating rod 602 are hinged on the support frame 603. A first chute is opened in the middle of the first rotating rod 607. One ends of the first rotating rod 607 and the second rotating rod 602 are jointly hinged with a mounting plate 605. An adsorption unit 606 for installing and disassembling the mold is arranged on the mounting plate 605. A first hydraulic push rod 601 is also hinged on the support frame 603. The extending end of the first hydraulic push rod 601 is fixedly connected with a first lever. The first lever is movably connected with the first chute.

[0044] Please refer toFigure 4 As shown in the figure, the above-mentioned adsorption unit 606 includes a second hydraulic push rod 6061 fixedly installed on the mounting plate 605. A clamping groove 6062 for transporting the mold is fixedly installed at the extending end of the second hydraulic push rod 6061. A limiting groove 6063 for limiting the second hydraulic push rod 6061 is arranged between the second hydraulic push rod 6061 and the mounting plate 605. The clamping groove 6062 is made of an electromagnet. When the mold needs to be replaced, the loading frame 8 moves from the fixed frame 7 to the set position. The first hydraulic push rod 601 extends to the longest. The mounting plate 605 is located directly above the loading frame 8. By extending the second hydraulic push rod 6061, the clamping groove 6062 is clamped with the mold in the loading frame 8. Then, the clamping groove 6062 is energized to make the clamping groove 6062 adsorb the mold. The second hydraulic push rod 6061 contracts. Then, by contracting the first hydraulic push rod 601 to the shortest, the mounting plate 605 contacts the support block 501. By extending the second hydraulic push rod 6061, the mold is placed into the empty storage groove 503. By moving the moving tooling 604, the clamping groove 6062 is clamped with other molds, and then the process of replacing the mold is completed, avoiding manual mold replacement, reducing labor consumption, improving the efficiency of mold replacement, and reducing the probability of mold damage during mold replacement.

[0045] Please refer to Figure 5 As shown in the figure, the above-mentioned heat preservation mechanism 11 includes a mounting seat 1103. An electromagnetic coil 1104 for heating the aluminum alloy rod is fixedly installed at the bottom of the mounting seat 1103. Guide rods 1101 are fixedly connected to the four corners at the top of the mounting seat 1103. The tops of the four guide rods 1101 all movably penetrate through the outer shell 10. A second hydraulic cylinder 1107 is fixedly inserted on the outer shell 10 on one side of the mounting seat 1103. A cutter 1105 for cutting the surplus material of the aluminum alloy rod is fixedly connected to the output end of the second hydraulic cylinder 1107. A transmission unit for driving the electromagnetic coil 1104 to lift is arranged between the output end of the second hydraulic cylinder 1107 and the mounting seat 1103.

[0046] Please refer to Figure 5As shown in the figure, the above-mentioned transmission unit includes a mounting bracket fixedly connected to the outer shell 10. A rotating plate 1106 is rotatably arranged on the mounting bracket. Second chutes are provided at both ends of the rotating plate 1106. Second shifting rods 1102 are fixedly connected to the output end of the second hydraulic cylinder 1107 and the mounting seat 1103 respectively. The two second shifting rods 1102 are respectively movably connected to the corresponding second chutes. When the second hydraulic cylinder 1107 is in a contracted state, the electromagnetic coil 1104 is energized. Then, during the process of the output end of the first hydraulic cylinder 2 extending to push the aluminum alloy rod into the limiting hole, the aluminum alloy rod is heated through the electromagnetic coil 1104 to prevent the internal temperature of the aluminum alloy rod from being different from the external temperature during extrusion, which affects the extrusion efficiency. After the aluminum alloy rod is extruded, the first hydraulic cylinder 2 resets. The output end of the second hydraulic cylinder 1107 extends, cooperating with the cutter 1105 to cut the remaining material of the aluminum alloy rod. At the same time, the rotating plate 1106 is flipped, driving the electromagnetic coil 1104 to move upward to prevent the debris generated during the cutting of the remaining material of the aluminum alloy rod from damaging the electromagnetic coil 1104.

[0047] Please refer to Figure 3 and Figure 6 As shown in the figure, a storage mechanism 5 is arranged below the above-mentioned mounting plate 605. The storage mechanism 5 includes a bottom plate 502. A support block 501 for limiting the mounting plate 605 is fixedly installed on the top of the bottom plate 502. A plurality of storage grooves 503 for storing molds are arranged on one side of the support block 501. The plurality of storage grooves 503 are arranged in a straight line, and the position of one of the storage grooves 503 corresponds to the position of the card slot 6062.

[0048] Please refer to Figure 1 As shown in the figure, a discharge port is provided at the position of the above-mentioned outer shell 10 corresponding to the fixed frame 7.

[0049] Working principle: When the present invention is in use, first, when the mold needs to be replaced, the loading frame 8 moves from the fixed frame 7 to a set position. The first hydraulic push rod 601 extends to the longest. The mounting plate 605 is located directly above the loading frame 8. By extending the second hydraulic push rod 6061, the clamping groove 6062 is clamped with the mold in the loading frame 8. Then, the clamping groove 6062 is electrified to make the clamping groove 6062 adsorb the mold. The second hydraulic push rod 6061 contracts. Then, by contracting the first hydraulic push rod 601 to the shortest, the mounting plate 605 contacts the support block 501. By extending the second hydraulic push rod 6061, the mold is placed into the empty storage groove 503. By moving the moving tooling 604, the clamping groove 6062 is clamped with other molds, and then the process of replacing the mold is completed, avoiding manual mold replacement, reducing labor consumption, improving the efficiency of mold replacement, and reducing the probability of mold damage when replacing the mold; when the second hydraulic cylinder 1107 is in a contracted state, the electromagnetic coil 1104 is electrified. Then, during the process of pushing the aluminum alloy rod into the limiting hole by extending the output end of the first hydraulic cylinder 2, the aluminum alloy rod is heated by the electromagnetic coil 110, avoiding the difference between the internal temperature and the external temperature of the aluminum alloy rod during extrusion, which affects the extrusion efficiency; after the aluminum alloy rod is extruded, the first hydraulic cylinder 2 resets. By extending the output end of the second hydraulic cylinder 1107, the cutting knife 1105 is cooperated to cut the remaining material of the aluminum alloy rod. At the same time, the rotating plate 1106 is turned over, driving the electromagnetic coil 1104 to move upward, preventing the debris generated during the cutting of the remaining material of the aluminum alloy rod from damaging the electromagnetic coil 1104.

[0050] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following will, in combination with the accompanying drawings and preferred embodiments, describe in detail the specific implementation manners, structures, features and their effects of the present invention as follows.

[0051] The above is only a preferred embodiment of the present invention, and it does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to make equivalent embodiments of equivalent changes within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An extrusion forming process for aluminum alloy profiles, characterized in that: The specific steps include: Step 1: Place the aluminum alloy raw material into a heating furnace for heating, and then use a cutting tool to cut the heated aluminum alloy raw material into rods to obtain aluminum alloy rods of a set length; Step 2: preheating the aluminum alloy rod by means of an electromagnetic coil (1104) in an extrusion device, and extruding the preheated aluminum alloy rod to obtain an extruded part; The aluminum alloy rod is preheated by the electromagnetic coil (1104) in the extrusion equipment to ensure that the aluminum alloy rod is still between 480°C and 500°C during extrusion, and the electromagnetic coil (1104) preheats the aluminum alloy rod for 10 seconds; the extended end of the second hydraulic cylinder (1107) in the extrusion equipment is extended so that the cutter (1105) cuts off the remaining aluminum alloy rod, and at the same time, the electromagnetic coil (1104) is raised by the transmission unit in the extrusion equipment; Step 3: The extruded part is pulled and transported to an aging furnace by a pulling device for a period of aging treatment to obtain a finished aluminum alloy profile, and the mold is replaced by a replacement mechanism (6) in the extrusion equipment; The clamping slot (6062) in the extrusion device is electrified to generate magnetic force to attract the mold, and then the first hydraulic push rod (601) is used to move the mold to the top of the loading frame (8) through the clamping slot (6062), and then the mold is installed; The extrusion equipment comprises a shell (10), a partition (1) is fixedly installed in the middle of the shell (10), a first hydraulic cylinder (2) for extruding an aluminum alloy rod is fixedly installed on one side of the partition (1), the extended end of the first hydraulic cylinder (2) movably penetrates the partition (1), and a feeding tool (3) for loading materials is slidably installed on the other side of the partition (1); a fixed frame (7) is provided on one side of the feeding tool (3), a loading frame (8) for loading a mold is slidably provided on the fixed frame (7), and a limiting block (9) is fixedly installed on the fixed frame (7) toward the side of the feeding tool (3); a heat preservation mechanism (11) for heating the end of the aluminum alloy rod is provided between the limiting block (9) and the feeding tool (3); a fixed plate (4) is fixedly installed on the front side of the shell (10), and a replacement mechanism (6) for replacing the mold is provided on the fixed plate (4); The replacement mechanism (6) includes a movable tool (604) slidably arranged on the fixed plate (4), a support frame (603) is fixedly installed on the top of the movable tool (604), a first rotating rod (607) and a second rotating rod (602) are hinged on the support frame (603), a first sliding groove is provided in the middle of the first rotating rod (607), one end of the first rotating rod (607) and the second rotating rod (602) are hinged to a mounting plate (605), an adsorption unit (606) for installing and removing the mold is provided on the mounting plate (605), a first hydraulic push rod (601) is further hinged on the support frame (603), a protruding end of the first hydraulic push rod (601) is fixedly connected to a first shifting rod, and the first shifting rod is movably connected to the first sliding groove; The heat preservation mechanism (11) includes a mounting base (1103). At the bottom of the mounting base (1103), an electromagnetic coil (1104) for heating the aluminum alloy rod is fixedly installed. At the four corners of the top of the mounting base (1103), guide rods (1101) are fixedly connected. The tops of the four guide rods (1101) all movably penetrate through the outer shell (10). A second hydraulic cylinder (1107) is fixedly inserted on the outer shell (10) on one side of the mounting base (1103). The output end of the second hydraulic cylinder (1107) is fixedly connected with a cutting tool (1105) for cutting the surplus material of the aluminum alloy rod. A transmission unit for driving the electromagnetic coil (1104) to lift is arranged between the output end of the second hydraulic cylinder (1107) and the mounting base (1103); the transmission unit includes a mounting frame fixedly connected with the outer shell (10). A rotating plate (1106) is rotatably arranged on the mounting frame. Second chutes are formed at both ends of the rotating plate (1106). Second shift rods (1102) are fixedly connected to the output end of the second hydraulic cylinder (1107) and the mounting base (1103). The two second shift rods (1102) are respectively movably connected with the corresponding second chutes.

2. The extrusion forming process of an aluminum alloy profile according to claim 1, wherein In step one, the heated aluminum alloy raw material is between 480 - 520 °C.

3. A process for extruding an aluminum alloy profile according to claim 1, characterized in that, In step three, it moves through the moving tooling (604) in the extrusion equipment, so that the position of the card slot (6062) corresponds to that of other molds.

4. A process for extruding an aluminum alloy profile according to claim 1, characterized in that, In step three, the aging treatment time is 2.5 - 4 hours, and the aging treatment temperature is 190 °C. After the aging treatment, the aluminum alloy profile is air-cooled.

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