Extruder for aluminum alloy guide rails

Abstract

This invention relates to the field of aluminum alloy processing technology, specifically to an extruder for aluminum alloy guide rails. It includes a base, with an extrusion head positioned above the base. The extrusion head extrudes aluminum material into guide rails. Two cooling devices are located on one side of the extruded guide rail, with the guide rail passing through the center of the two cooling devices. Several water supply pipes connect the two cooling devices. Several sliding devices are located on the sides of the two cooling devices that are far apart, supporting the guide rail and extending and retracting vertically. In this invention, the extrusion head is mounted on the base, extruding molten aluminum alloy into guide rails. The formed guide rail slides on several rollers. A motor drives two gear plates to rotate synchronously via a shaft, thereby causing the several water supply pipes to uniformly spray coolant around the guide rail, ensuring uniform cooling of all parts of the aluminum alloy guide rail during the cooling process and reducing guide rail deformation caused by uneven cooling.

Description

Technical Field

[0001] This invention relates to the field of aluminum alloy processing technology, and more specifically, to an extruder for aluminum alloy guide rails. Background Technology

[0002] Aluminum alloy guide rails are a commonly used material in various manufacturing fields, with extremely wide applications. They are generally formed using an extruder. The extruder uses pure aluminum or aluminum alloy, which is then stretched longitudinally through extrusion. Before extrusion, both the aluminum material and the die need to be heated to several hundred degrees Celsius. After extrusion, the material is cooled to obtain the aluminum alloy guide rail. Currently, most aluminum alloy guide rail extruders use water cooling. To improve cooling efficiency, a large amount of cooling water is sprayed onto the surface of the guide rail. This method not only fails to provide precise cooling but also cannot ensure uniform cooling of all parts of the guide rail during the cooling process. This uneven cooling leads to guide rail deformation, affecting the final quality. Summary of the Invention

[0003] The purpose of this invention is to provide an extruder for aluminum alloy guide rails to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, an extruder for aluminum alloy guide rails is provided, including a base. An extrusion head is disposed above the base, and the extrusion head extrudes aluminum material into guide rails. Two cooling devices are disposed on one side of the extrusion head that extrudes the guide rail. The guide rail passes through the center of the two cooling devices, and a plurality of water supply pipes are connected between the two cooling devices. The plurality of water supply pipes rotate and spray water from different directions onto the surface of the guide rail. The plurality of water supply pipes are arranged in a circular array around the guide rail. The rotation of the cooling devices around the guide rail drives the plurality of water supply pipes to rotate around the guide rail as an axis. A plurality of sliding devices are disposed on the side of the two cooling devices that are far apart from each other. The plurality of sliding devices support the guide rail and extend and retract vertically. The two cooling devices drive the plurality of water supply pipes to move around the guide rail, causing the plurality of water supply pipes to move closer to or further away from the guide rail.

[0005] As a further improvement to this technical solution, the cooling device includes a first slide block, the bottom of which slides on the cooling device. A semi-circular groove is provided on the upper part of the first slide block, and a gear plate is rotatably mounted in the semi-circular groove. Several teeth are provided on the side wall of the gear plate. A motor is installed at the bottom of the first slide block and is fixedly installed below the cooling device. A lower gear is fixedly connected to the rotating shaft of the motor. An upper gear meshes above the lower gear and meshes with the teeth on the gear plate. The motor drives the gear plate to rotate through the rotating shaft.

[0006] As a further improvement to this technical solution, a positioning plate is fixedly installed on the side of the gear plate near the extrusion head. The positioning plate has several slots arranged in a ring around the guide rail on the side near the extrusion head. An inner rotating ring is rotatably installed at the center of the gear plate. A locking rod is hinged to the side wall of the inner rotating ring. A torsion spring is provided at the hinge point between the locking rod and the inner rotating ring. The torsion spring pushes the locking rod to press the positioning plate, and the wedge block provided on the side of the locking rod near the gear plate is engaged in the slot, thereby fixing the inner rotating ring on the gear plate and preventing the inner rotating ring from rotating.

[0007] As a further improvement to this technical solution, a number of swing rods are fixedly arranged in a circular array on the side of the positioning plate away from the gear plate. A first hinge rod is rotatably installed at the end of each swing rod away from the guide rail. The end of the first hinge rod near the positioning plate passes through the positioning plate and is fixedly installed on the bottom surface of the gear plate. The water supply pipe is fixedly installed at the end of the swing rod away from the first hinge rod. A number of nozzles are connected to the side of the water supply pipe near the guide rail. When the gear plate rotates, the swing rods drive the water supply pipe to rotate around the guide rail, thereby causing the water supply pipe to spray water from different directions onto the surface of the guide rail through the rotating nozzles. The swing rods swing around the first hinge rod, causing the water supply pipe to move closer to or away from the guide rail.

[0008] As a further improvement to this technical solution, a movable sleeve is slidably sleeved in the middle section of the swing rod. The movable sleeve slides and squeezes the side wall of the swing rod, causing the swing rod to swing around the first hinge rod, thereby driving the water supply pipe closer to the guide rail.

[0009] As a further improvement to this technical solution, an outer rotating ring is provided on the side of the movable sleeve away from the gear plate. The outer rotating ring is fixedly connected to the inner rotating ring through several connecting blocks. The side of the movable sleeve close to the outer rotating ring is hinged to the outer rotating ring through a second hinge rod. The hinge point is located between several connecting blocks. The rotation of the inner rotating ring drives the outer rotating ring to rotate. The rotation of the outer rotating ring causes several movable sleeves to swing, causing the movable sleeves to press the swing rod, causing the swing rod to swing around the first hinge rod, thereby driving several water supply pipes closer to the guide rail. The wedge on the locking rod is engaged in the groove of the gear plate, preventing the inner rotating ring from rotating further, thus fixing the distance between the several water supply pipes and the guide rail.

[0010] As a further improvement to this technical solution, the sliding device includes a second slide block slidably disposed on the base. The upward-facing side of the second slide block is configured as a groove. Sliding grooves are formed on the side walls on both sides of the groove. A roller core is disposed in the groove. A sleeve roller is slidably sleeved on the outside of the roller core. The guide rail rolls on several sleeve rollers.

[0011] As a further improvement to this technical solution, the two ends of the roller core are engaged in the sliding groove and slide up and down. A screw is provided at the upper end of the sliding groove. The bottom of the screw penetrates the top of the side wall of the groove and is rotatably connected to the end of the roller core. Rotating the screw drives the sleeve roller to slide up and down, thereby supporting the guide rail and making the guide rail located on the axis of the several water supply pipes.

[0012] As a further improvement to this technical solution, the two lower gears are coaxially connected by a connecting rod. The motor shaft drives the two lower gears to rotate synchronously, which in turn drives the two gear plates to rotate synchronously, which in turn drives several movable sleeves to swing around the guide rail synchronously, so that the two ends of several water supply pipes move closer to the guide rail synchronously.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. In the extruder of this aluminum alloy guide rail, the extruder head extrudes molten aluminum alloy into a guide rail. The formed guide rail slides on several rollers, during which initial natural heat dissipation occurs, while reducing friction and protecting the guide rail surface. The motor drives the lower gear to rotate synchronously through the rotating shaft, and the connecting rod transmits power to another lower gear, ensuring that the two gear plates rotate synchronously. This, in turn, drives several water supply pipes to spray coolant evenly around the guide rail, ensuring that all parts of the aluminum alloy guide rail are cooled evenly during the cooling process, reducing guide rail deformation caused by uneven cooling.

[0015] 2. In the extruder of this aluminum alloy guide rail, by rotating the screw, the sleeve roller can be driven to slide up and down, thereby providing dynamic support for the guide rail. At the same time, the distance between several water supply pipes and the guide rail can be adjusted, so that the height of the guide rail can be adjusted according to the actual needs of the extrusion process, ensuring that the guide rail is always on the axis of several water supply pipes, which helps to achieve uniform cooling. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the sliding device structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the sliding device structure of the present invention;

[0019] Figure 4 This is one of the exploded structural diagrams of the cooling device of the present invention;

[0020] Figure 5 This is the second exploded view of the cooling device structure of the present invention;

[0021] Figure 6 This is a schematic diagram of the motor connection structure of the present invention.

[0022] The meanings of the labels in the diagram are as follows:

[0023] 1. Cooling device; 11. Outer rotating ring; 111. Connecting block; 12. Swing rod; 121. First hinge rod; 13. Movable sleeve; 131. Second hinge rod; 14. Inner rotating ring; 15. Gear plate; 16. Positioning plate; 17. Locking rod; 18. First slide; 181. Semicircular groove;

[0024] 2. Sliding device; 21. Second slide block; 22. Screw; 23. Sleeve roller; 24. Roller core;

[0025] 3. Extruder head; 4. Base; 5. Water supply pipe; 6. Motor; 7. Lower gear; 8. Upper gear; 9. Connecting rod. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0028] Example 1

[0029] Please see Figures 1-6As shown, the purpose of this embodiment is to provide an extruder for aluminum alloy guide rails, including a base 4. The base 4 provides stable support for the extruder, ensuring the stability and safety of the machine during operation. The design of the base 4 helps reduce vibration and protects the machine from uneven ground or other external factors, thereby improving the working efficiency of the extruder and the precision of the extruded guide rail. An extrusion head 3 is arranged above the base 4. The extrusion head 3 is responsible for extruding molten aluminum alloy into guide rails through a specific mold. Its precise temperature control and pressure regulation capabilities ensure the uniformity and strength of the guide rails. Two cooling devices 1 are arranged on one side of the extruded guide rail by the extrusion head 3. The two cooling devices 1 rapidly cool the newly extruded guide rails to reduce thermal deformation and improve the hardness of the guide rails. The guide rails pass through the center of the two cooling devices 1. Several water supply pipes 5 are connected between the cooling devices 1. These water supply pipes 5 spray water from different directions onto the surface of the guide rails to achieve uniform cooling. The design of the cooling devices 1 helps to improve production efficiency because rapid cooling can reduce the residence time of the guide rails during the cooling process, while ensuring the dimensional stability and surface quality of the guide rails. The cooling devices 1 are arranged in a ring around the guide rail. Rotating around the guide rail, the cooling devices 1 drive several water supply pipes 5 to rotate around the guide rail as their axis. This allows cooling water to be sprayed onto the guide rail from different angles. This design helps achieve a more uniform cooling effect and reduces deformation of the guide rail caused by localized overheating or overcooling. Several sliding devices 2 are provided on the sides of the two cooling devices 1 that are far apart. These sliding devices 2 support the guide rail and extend and retract vertically to accommodate guide rails of different thicknesses, ensuring the stability of the guide rail during the cooling process. The extension and retraction function of the sliding devices 2 helps to ensure the stability of the guide rail during cooling. The guide rail slides along the axis of several water supply pipes 5, allowing the water supply pipes 5 to cool the guide rail evenly, ensuring the dimensional stability and surface quality of the guide rail. The two cooling devices 1 drive the water supply pipes 5 to move around the guide rail, moving them closer to or further away from the guide rail. This coordinated movement design ensures that the cooling water always closely follows the cooling needs of the guide rail, guaranteeing consistent cooling effect regardless of changes in the length of the guide rail. This design improves cooling efficiency, reduces energy consumption, and helps improve the overall quality of the guide rail.

[0030] The cooling device 1 includes a first slide 18, the bottom of which slides on the cooling device 1. This allows the device to flexibly adjust its position when the guide rail length changes, ensuring uniform cooling effect. A semi-circular slot 181 is provided on the upper part of the first slide 18. This design allows the gear plate 15 to be rotatably mounted therein, providing a compact and stable structure that helps improve the working efficiency and stability of the extruder. Several teeth are provided on the side wall of the gear plate 15. The shaft of the motor 6 is fixedly connected to a lower gear 7, and an upper gear 8 meshes above the lower gear 7. The upper gear 8 meshes with the teeth on the gear plate 15, forming the transmission system of the extruder. This design allows for power... The gear plate 15 is driven to rotate through the meshing of gears, thereby achieving precise cooling of the aluminum alloy guide rail. The rotation of the gear plate 15 not only improves the efficiency of the extrusion process, but also helps to maintain the consistency and uniformity of the guide rail. A motor 6 is installed at the bottom of the first slide 18. The motor 6 is fixedly installed below the cooling device 1. The motor 6 drives the gear plate 15 to rotate through the rotating shaft. This direct connection method simplifies the power transmission path, reduces energy loss, and improves the energy efficiency of the extruder. The motor 6 drives the gear plate 15 to rotate through the rotating shaft. This design allows the extruder to adjust its speed as needed to adapt to different cooling requirements, improving the flexibility and adaptability of the cooling process.

[0031] A positioning plate 16 is fixedly installed on the side of the gear plate 15 near the extruder head 3. The positioning plate 16 has several slots arranged in a ring around the guide rail on the side near the extruder head 3. This structural design allows the positioning plate 16 to precisely fix the gear plate 15, reducing cooling issues caused by positional deviations and improving the machining accuracy and production efficiency of the guide rail. An inner rotating ring 14 is rotatably mounted at the center of the gear plate 15. The inner rotating ring 14 rotates freely during cooling, reducing friction and wear. A locking rod 17 is hinged to the side wall of the inner rotating ring 14. This structural design allows the inner rotating ring 14 to be locked when needed to prevent unnecessary rotation during cooling and ensure the stability of the cooling process. To ensure the quality of the guide rail and the locking rod 17, a torsion spring is provided at the hinge of the locking rod 17 and the inner rotating ring 14. The torsion spring pushes the locking rod 17 to press against the positioning plate 16, and causes the wedge block provided on the side of the locking rod 17 near the gear plate 15 to engage in the slot, thereby fixing the inner rotating ring 14 to the gear plate 15 and preventing the inner rotating ring 14 from rotating. This mechanism ensures that the inner rotating ring 14 is fixed to the gear plate 15 and cannot rotate, thus ensuring precise control and consistency of the guide rail during the cooling process. Through this locking mechanism, the inner rotating ring 14 can be prevented from rotating erroneously, which helps to accurately control the distribution of coolant and ensure that all parts of the aluminum alloy guide rail are cooled evenly during the cooling process, reducing guide rail deformation caused by uneven cooling.

[0032] A plurality of swing rods 12 are fixedly arranged in a circular array on the side of the positioning plate 16 away from the gear plate 15, allowing the swing rods 12 to swing in a circular array around the guide rail, which helps to achieve all-round cooling of the guide rail by the water supply pipe 5. A first hinge rod 121 is rotatably mounted on the end of each swing rod 12 away from the guide rail. This structure allows the swing rods 12 to rotate at the end away from the guide rail, increasing the flexibility and adaptability of the cooling system, allowing the water supply pipe 5 to cool the guide rail more effectively from different angles. The end of the first hinge rod 121 near the positioning plate 16 passes through the positioning plate 16 and is fixedly mounted on the bottom surface of the gear plate 15. The water supply pipe 5 is fixedly mounted on the end of the swing rod 12 away from the first hinge rod 121, and a plurality of [unclear text - possibly related to a specific type of water supply pipe 5] are connected to the side of the water supply pipe 5 near the guide rail. The nozzle reduces the cross-sectional area of ​​the liquid flow, thereby increasing the water pressure and speeding up the water flow. This makes cooling the guide rail more efficient. When the gear plate 15 rotates, it drives the water supply pipe 5 to rotate around the guide rail via the swing rod 12. This causes the water supply pipe 5 to spray water onto the surface of the guide rail from different directions through the rotating nozzle. This rotating spraying method helps improve the cooling uniformity of the guide rail, reduces guide rail deformation caused by uneven cooling, and improves production efficiency. The swing rod 12 swings around the first hinge rod 121, causing the water supply pipe 5 to move closer to or away from the guide rail. This allows the water supply pipe 5 to adjust its distance from the guide rail as needed, optimizing the cooling effect. This enables the extruder to effectively cool guide rails of different sizes, improving the applicability and flexibility of the extruder.

[0033] A movable sleeve 13 is slidably fitted in the middle section of the swing rod 12. The movable sleeve 13 slides and squeezes the side wall of the swing rod 12. This structure not only provides the swing rod 12 with flexibility in operation, but also enhances its structural stability through the squeezing action, ensuring the durability and reliability of the swing rod 12 under frequent operation. At the same time, it allows the water supply pipe 5 to dynamically adjust the distance from the guide rail to achieve a more precise and uniform cooling effect. Through the swing of the swing rod 12, the extruder can adapt to guide rails of different shapes and sizes, improving the adaptability and flexibility of the cooling process. The swing rod 12 swings around the first hinge rod 121, thereby driving the water supply pipe 5 closer to the guide rail, so that the water supply pipe 5 can perform optimized coolant spraying according to the specific needs of the guide rail, such as shape, length and cooling requirements. This not only improves cooling efficiency, but also helps to reduce material waste and improve production efficiency. At the same time, it can also make real-time adjustments according to the cooling feedback of the guide rail, ensuring the quality and performance of the guide rail in the cooling process.

[0034] An outer rotating ring 11 is provided on the side of the movable sleeve 13 away from the gear plate 15. The outer rotating ring 11 is fixedly connected to the inner rotating ring 14 through several connecting blocks 111. This not only enhances the stability of the extruder structure, but also allows the outer rotating ring 11 to move relative to the swing rod 12 through the movable sleeve 13 while being fixedly connected, thus improving the flexibility of the extruder and its ability to adapt to different production needs. The side of the movable sleeve 13 closest to the outer rotating ring 11 is hinged to the outer rotating ring 11 through a second hinge rod 131. The hinge point is located between several connecting blocks 111. This design allows the outer rotating ring 11 to move relative to the swing rod 12 through the second hinge rod 131 while being fixedly connected, enabling the extruder's cooling system to dynamically adjust the position of the water supply pipe 5 to adapt to different needs. The shape and size of the guide rails improve the adaptability and flexibility of the cooling process. The rotation of the inner rotating ring 14 drives the outer rotating ring 11 to rotate. The rotation of the outer rotating ring 11 causes several movable sleeves 13 to swing, which in turn presses the swing rod 12, causing the swing rod 12 to swing around the first hinge rod 121. This, in turn, drives several water supply pipes 5 to approach the guide rail, achieving precise spraying of coolant. The wedge on the locking rod 17 engages in the groove of the gear plate 15, preventing the inner rotating ring 14 from rotating further. This, in turn, fixes the distance between the several water supply pipes 5 and the guide rail. This locking mechanism ensures the precision and consistency of coolant spraying, avoids displacement of the cooling device 1 due to equipment vibration or accidental impact, thus ensuring the consistency and reliability of the cooling effect and improving the quality and performance of the guide rails.

[0035] The sliding device 2 includes a second slide block 21 slidably mounted on the base 4 to accommodate aluminum alloy guide rails of different lengths and shapes, ensuring the adaptability of the extruder and the continuity of the extrusion process. The upward-facing side of the second slide block 21 is configured as a slot, and grooves are provided on the side walls on both sides of the slot. A roller core 24 is provided in the slot, and a sleeve roller 23 is slidably mounted on the outside of the roller core 24. The guide rail rolls on several sleeve rollers 23, so that the aluminum alloy guide rail moves and cools smoothly after extrusion, reducing friction and heat generated by direct contact with the extruder, protecting the surface of the guide rail from damage. The use of sleeve rollers 23 improves the transmission efficiency of the guide rail, reduces energy consumption, and ensures the uniformity and consistency of the guide rail during the cooling process.

[0036] The two ends of the roller core 24 are engaged in the chute and slide up and down, allowing the roller core 24 to be adjusted in position as needed to adapt to guide rails of different sizes, ensuring stable support and precise positioning of the guide rails. Guided by the chute, the movement of the roller core 24 is more stable and controllable, which helps to improve the operating efficiency of the extruder and the machining accuracy of the guide rails. A screw 22 is provided at the upper end of the chute, and the bottom of the screw 22 penetrates the top of the side wall of the chute and is rotatably connected to the end of the roller core 24. By rotating the screw 22, the sleeve roller 23 can be driven to slide up and down, thereby providing dynamic support for the guide rails. This design allows the guide rails to be height adjusted according to the actual needs during the cooling process, ensuring that the guide rails are always located on the axis of several water supply pipes 5, which helps to achieve uniform cooling.

[0037] The two lower gears 7 are coaxially connected by a connecting rod 9. The motor 6 shaft drives the two lower gears 7 to rotate synchronously. The synchronous rotation of the lower gears 7 can ensure the uniform distribution of force and the stability of the extruder during the cooling process. This is crucial for improving cooling efficiency and the quality of the guide rail. At the same time, synchronous rotation also reduces mechanical wear and energy consumption caused by mismatch in gear speed, improving the operating efficiency and lifespan of the extruder. The two lower gears 7 drive the two gear plates 15 to rotate synchronously, which in turn drives several movable sleeves 13 to swing synchronously around the guide rail. This causes the two ends of several water supply pipes 5 to move synchronously closer to the guide rail. This synchronous approach ensures that the coolant can be sprayed evenly onto the surface of the guide rail, improving the cooling efficiency and the cooling quality of the guide rail. Synchronous approach also helps to reduce uneven cooling caused by inaccurate positioning of the water supply pipes 5, thereby avoiding deformation or cracking of the guide rail due to temperature differences, and ensuring the dimensional stability and mechanical performance of the guide rail.

[0038] In this embodiment, during actual use, the extruder head 3 is mounted on the base 4 to extrude molten aluminum alloy into a guide rail. The formed guide rail slides on several rollers 23, allowing for initial natural heat dissipation while reducing friction and protecting the guide rail surface. As the extruder head 3 further extrudes, this portion of the guide rail enters between several water supply pipes 5. The motor 6 drives the lower gear 7 to rotate synchronously via a rotating shaft. The connecting rod 9 transmits power to another lower gear 7, ensuring that the two gear plates 15 rotate synchronously. This, in turn, drives the several water supply pipes 5 to spray coolant evenly around the guide rail, ensuring uniform cooling of all parts of the aluminum alloy guide rail during the cooling process and reducing guide rail deformation caused by uneven cooling. The inner rotating ring 14 is connected by a torsion spring and a locking rod. The wedge on 17 is fixedly connected to the gear plate 15, ensuring that the inner rotating ring 14 cannot rotate during cooling, thereby fixing the distance between the water supply pipe 5 and the guide rail and ensuring uniform cooling. By rotating the screw 22, the sleeve roller 23 can be driven to slide up and down, thereby providing dynamic support for the guide rail. At the same time, the distance between several water supply pipes 5 and the guide rail can be adjusted, so that the height of the guide rail can be adjusted according to the actual needs during the cooling process, ensuring that the guide rail is always located on the axis of several water supply pipes 5, which helps to achieve uniform cooling. The distance between several water supply pipes 5 and the guide rail can be flexibly adjusted according to the guide rail of different sizes. After extrusion and cooling, the aluminum alloy guide rail is output as a finished product through the rolling transmission of several sleeve rollers 23 away from the extrusion head 3.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An extruder for an aluminum alloy guide rail, comprising a base (4), an extrusion head (3) disposed above the base (4), the extrusion head (3) extruding aluminum material into a guide rail, and two cooling devices (1) disposed on one side of the extrusion head (3) extruding the guide rail, characterized in that: The guide rail passes through the center of the two cooling devices (1), and several water supply pipes (5) are connected between the two cooling devices (1). The several water supply pipes (5) rotate and spray water from different directions onto the surface of the guide rail. The several water supply pipes (5) are arranged in a ring array around the guide rail. The cooling device (1) rotates around the guide rail, causing the several water supply pipes (5) to rotate around the guide rail as the axis. Several sliding devices (2) are provided on the side of the two cooling devices (1) that are far apart. The several sliding devices (2) support the guide rail. The sliding devices (2) extend and retract up and down. The two cooling devices (1) drive the several water supply pipes (5) to move around the guide rail, so that the several water supply pipes (5) move closer to or away from the guide rail. The cooling device (1) includes a first slide (18), the bottom of the first slide (18) slides on the cooling device (1), and a semi-circular slot (181) is provided above the first slide (18), in which a gear plate (15) is rotatably installed. An inner rotating ring (14) is rotatably mounted at the center of the gear plate (15), and a locking rod (17) is hinged to the side wall of the inner rotating ring (14). A positioning plate (16) is fixedly installed on the side of the gear plate (15) near the extrusion head (3). The positioning plate (16) is fixedly provided with a number of swing rods (12) in a circular array on the side away from the gear plate (15), and the first hinge rod (121) is rotatably installed on the end of the swing rods (12) away from the guide rail. The middle section of the swing rod (12) is fitted with a movable sleeve (13). An outer rotating ring (11) is provided on the side of the movable sleeve (13) away from the gear plate (15). The outer rotating ring (11) is fixedly connected to the inner rotating ring (14) through several connecting blocks (111). The side of the movable sleeve (13) close to the outer rotating ring (11) is hinged to the outer rotating ring (11) through a second hinge rod (131). The hinge point is located between several connecting blocks (111). The rotation of the inner rotating ring (14) drives the outer rotating ring (11). Rotating, the outer rotating ring (11) rotates several movable sleeves (13) to swing, causing the movable sleeves (13) to squeeze the swing rod (12), causing the swing rod (12) to swing around the first hinge rod (121), thereby driving several water supply pipes (5) to approach the guide rail. The wedge on the locking rod (17) is engaged in the slot of the gear plate (15), preventing the inner rotating ring (14) from rotating, thereby fixing the distance between the several water supply pipes (5) and the guide rail.

2. The extruder for aluminum alloy guide rails according to claim 1, characterized in that: The gear plate (15) has several teeth on its side wall. The first slide (18) is equipped with a motor (6) at its bottom. The motor (6) is fixedly installed below the cooling device (1). The shaft of the motor (6) is fixedly connected to a lower gear (7). An upper gear (8) meshes above the lower gear (7). The upper gear (8) meshes with the teeth on the gear plate (15). The motor (6) drives the gear plate (15) to rotate through the shaft.

3. The extruder for the aluminum alloy guide rail according to claim 2, characterized in that: The positioning plate (16) has several slots arranged in a ring around the guide rail on the side near the extrusion head (3). A torsion spring is provided at the hinge of the locking rod (17) and the inner rotating ring (14). The torsion spring pushes the locking rod (17) to squeeze the positioning plate (16) and makes the wedge block provided on the side of the locking rod (17) near the gear plate (15) engage in the slot, thereby fixing the inner rotating ring (14) on the gear plate (15) so that the inner rotating ring (14) cannot rotate.

4. The extruder for the aluminum alloy guide rail according to claim 3, characterized in that: The first hinge rod (121) is fixedly installed on the bottom surface of the gear plate (15) through the positioning plate (16) at one end near the positioning plate (16). The water supply pipe (5) is fixedly installed on the end of the swing rod (12) away from the first hinge rod (121). The side of the water supply pipe (5) near the guide rail is connected to several nozzles. When the gear plate (15) rotates, the water supply pipe (5) rotates around the guide rail through the swing rod (12), thereby causing the water supply pipe (5) to spray water from different directions onto the surface of the guide rail through the rotating nozzles. The swing rod (12) swings around the first hinge rod (121), causing the water supply pipe (5) to move closer to or away from the guide rail.

5. The extruder for the aluminum alloy guide rail according to claim 4, characterized in that: The movable sleeve (13) slides and presses against the side wall of the swing rod (12), causing the swing rod (12) to swing around the first hinge rod (121), thereby driving the water supply pipe (5) closer to the guide rail.

6. The extruder for the aluminum alloy guide rail according to claim 1, characterized in that: The sliding device (2) includes a second slide (21) slidably disposed on the base (4). The upper side of the second slide (21) is configured as a slot. Sliding grooves are provided on the side walls on both sides of the slot. A roller core (24) is provided in the slot. A sleeve roller (23) is slidably sleeved on the outside of the roller core (24). The guide rail rolls on several sleeve rollers (23).

7. The extruder for the aluminum alloy guide rail according to claim 6, characterized in that: The two ends of the roller core (24) are engaged in the sliding groove and slide up and down. A screw (22) is provided at the upper end of the sliding groove. The bottom of the screw (22) passes through the top of the side wall of the groove and is rotatably connected to the end of the roller core (24). Rotating the screw (22) drives the sleeve roller (23) to slide up and down, thereby supporting the guide rail and making the guide rail located on the axis of several water supply pipes (5).

8. The extruder for the aluminum alloy guide rail according to claim 5, characterized in that: The two lower gears (7) are coaxially connected by a connecting rod (9). The motor (6) shaft drives the two lower gears (7) to rotate synchronously, which in turn drives the two gear plates (15) to rotate synchronously, which in turn drives several movable sleeves (13) to swing around the guide rail synchronously, so that the two ends of several water supply pipes (5) move closer to the guide rail synchronously.

Images