Aluminum material quenching device

Abstract

The utility model provides an aluminum material quenching device which is characterized in that a heat insulation cover is closely arranged between a quenching cover and an aluminum material extrusion device so as to prevent extruded aluminum materials from being influenced by external temperature before entering the quenching cover to generate cooling. A conveying assembly is arranged in the quenching cover and used for driving the extruded aluminum material to move in the first direction, and a spraying assembly is further arranged in the quenching cover. The spraying assembly can spray cooling liquid to the extruded aluminum material in multiple directions perpendicular to the first direction, and then the quenching process is completed. The spraying device can spray cooling liquid to the extruded aluminum material in multiple directions, so that the quenching effect of each part of the aluminum material is more uniform.

Description

Technical Field

[0001] This utility model generally relates to the field of aluminum production technology, and specifically to an aluminum quenching device. Background Technology

[0002] Traditional online quenching equipment for aluminum profiles mainly consists of an extruder, a quenching hood, a fan, and a spray system. Its working principle is as follows: after the aluminum profile is formed by the extruder, it enters the quenching hood. The quenching hood is equipped with a fan, a spray system, or a water pressure spray device to rapidly cool (quench) the profile.

[0003] The existing quenching equipment has fixed positions for the fan and spray system, and can only rapidly cool the extruded aluminum material in a single direction. This results in uneven quenching between the side of the aluminum material facing the spray system and the side facing away from the spray system. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide an aluminum quenching device.

[0005] This utility model provides an aluminum quenching device, wherein the quenching device and the aluminum extrusion device are used to abut against the side wall of the extruded aluminum material;

[0006] The quenching device includes:

[0007] A quenching hood has a first opening located on the side wall of the quenching hood facing the aluminum extrusion device, for allowing the extruded aluminum to enter the quenching hood.

[0008] A heat insulation cover is detachably mounted on the side wall of the quenching cover where the first opening is made, and is disposed outside the first opening; the heat insulation cover abuts against the side wall of the aluminum extrusion device on the side where aluminum is extruded.

[0009] A first space is formed between the sidewall of the heat insulation cover and the quenching cover with the first opening and the sidewall of the aluminum extrusion device for extruding aluminum; the heat insulation cover is used to keep the extruded aluminum warm before it enters the quenching cover.

[0010] A conveying assembly, installed inside the quenching hood, is used to move the extruded aluminum material along a first direction;

[0011] A spray assembly, installed inside the quenching hood, is used to spray coolant in multiple directions perpendicular to the first direction to quench the extruded aluminum material entering the quenching hood.

[0012] According to the technical solution provided by this utility model, the spray assembly includes:

[0013] Multiple annular spray channels are installed inside the quenching hood along the first direction and are connected sequentially through a first pipe; one of the annular spray channels is connected to a coolant source; the coolant source is used to inject coolant into the annular spray channel;

[0014] The annular spray channel has a spray space inside, and multiple atomizing nozzles are installed on the surface near the spray space; when the extruded aluminum material enters the quenching hood, it passes through the spray space; the atomizing nozzles are used to spray coolant onto the extruded aluminum material.

[0015] According to the technical solution provided by this utility model, the coolant source includes:

[0016] A pump body, one end of which is connected to one of the annular spray channels;

[0017] A first coolant tank and a second coolant tank, wherein the temperature of the coolant stored in the first coolant tank is higher than the temperature of the coolant stored in the second coolant tank;

[0018] A three-way valve is connected to one end of the pump body, and to the first coolant tank and the second coolant tank, respectively.

[0019] The three-way valve has a first state and a second state.

[0020] In the first state, the first coolant tank is connected to the pump body;

[0021] In the second state, the second coolant tank is connected to the pump body.

[0022] According to the technical solution provided by this utility model, a temperature sensor is provided inside the heat insulation cover to detect the temperature of the extruded aluminum material;

[0023] The quenching device also includes:

[0024] The controller is electrically connected to the temperature sensor and is used to control the three-way valve to switch to a first state or a second state based on the temperature of the extruded aluminum material detected by the temperature sensor.

[0025] According to the technical solution provided by this utility model, the transmission component includes:

[0026] Multiple drive rollers, wherein the rotation axis of the drive rollers is parallel to the horizontal direction and perpendicular to the first direction;

[0027] A conveyor belt body is attached to multiple drive rollers; the conveyor belt body has a mesh structure for the coolant sprayed by the spraying assembly to pass through the conveyor belt body and contact the extruded aluminum material.

[0028] According to the technical solution provided by this utility model, it also includes:

[0029] A blower assembly is installed inside the quenching hood and is used to communicate with a gas source to blow gas onto the extruded aluminum material inside the quenching hood.

[0030] According to the technical solution provided by this utility model, the blower assembly includes:

[0031] The second pipe is located below the conveying assembly; the second pipe has multiple air outlets that blow gas toward the conveyor belt.

[0032] After the gas is blown out of the air outlet, it passes through the mesh-structured conveyor belt and adheres to the extruded aluminum material, completing the quenching process.

[0033] According to the technical solution provided by this utility model, a guide fan blade is also rotatably installed at the air outlet; the guide fan blade is used to guide the gas and rotates under the action of the gas to change the guiding direction, thereby changing the blowing direction of the gas.

[0034] According to the technical solution provided by this utility model, the annular spray channel, the transmission roller and the air outlet are staggered along the first direction.

[0035] According to the technical solution provided by this utility model, the heat insulation cover is also provided with a cutting device that can be raised and lowered in the vertical direction, and the cutting device is used to cut the extruded aluminum material.

[0036] The beneficial effects of this utility model are as follows:

[0037] An insulating cover is installed tightly between the quenching hood and the aluminum extrusion device to prevent the extruded aluminum from being cooled down by external temperatures before entering the quenching hood. A conveying assembly is installed inside the quenching hood to move the extruded aluminum along a first direction, and a spraying assembly is also provided. The spraying assembly can spray coolant onto the extruded aluminum in multiple directions perpendicular to the first direction, thereby completing the quenching process. The spraying device in this invention can spray coolant onto the extruded aluminum in multiple directions, resulting in a more uniform quenching effect across all parts of the aluminum. Attached Figure Description

[0038] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0039] Figure 1 This is a schematic diagram of a quenching device for aluminum materials.

[0040] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0041] Figure 3 A top view of the delivery component;

[0042] Figure 4 This is a schematic diagram of the heat insulation cover.

[0043] Figure 5 This is a schematic diagram of the annular spray channel.

[0044] Figure 6 This is a schematic diagram showing the connection relationship of the coolant source;

[0045] The components are: 1. Aluminum extrusion device; 2. Insulation cover; 3. Quenching cover; 4. Extruded aluminum material; 5. Annular spray channel; 6. First pipe; 7. Atomizing nozzle; 8. Pump body; 9. First coolant tank; 10. Second coolant tank; 11. Three-way valve; 12. Temperature sensor; 13. Drive roller; 14. Conveyor belt; 15. Second pipe; 16. Air outlet; 17. Guide fan blade; 18. Cutting device; 19. First opening; 20. Second opening. Detailed Implementation

[0046] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0047] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0048] Please refer to Figure 1-6 All arrows in the diagram indicate the direction of gas movement. This invention provides an aluminum quenching device, wherein the quenching device and the aluminum extrusion device 1 abut against the sidewall of the aluminum material being extruded.

[0049] The quenching device includes:

[0050] The quenching cover 3 has a first opening 19, which is located on the side wall of the quenching cover 3 facing the aluminum extrusion device 1, for the extruded aluminum material 4 to enter the quenching cover 3.

[0051] The heat insulation cover 2 is detachably installed (bolted) on the side wall of the quenching cover 3 where the first opening 19 is opened, and is located outside the first opening 19; the heat insulation cover 2 abuts against the side wall of the aluminum extrusion device 1 on the side used to extrude aluminum material.

[0052] The heat insulation cover 2 and the quenching cover 3 form a first space between the side wall of the first opening 19 and the side wall of the aluminum extrusion device 1 used for extruding aluminum material; the heat insulation cover is used to keep the extruded aluminum material 4 warm before it enters the quenching cover 3.

[0053] A conveying assembly is installed inside the quenching hood 3 to drive the extruded aluminum material 4 to move along a first direction;

[0054] A spray assembly is installed inside the quenching hood 3 to spray coolant in multiple directions perpendicular to the first direction, thereby quenching the extruded aluminum material 4 that enters the quenching hood 3.

[0055] Specifically, a heating device (electric heating wire) is also installed inside the heat insulation cover 2 to heat the gas in the first space. Before extruding the aluminum material, the gas in the first space is heated by the heating device until its temperature is close to that of the aluminum material. This prevents the extruded aluminum material from being affected by external temperatures before entering the quenching cover 3, thus avoiding a significant temperature drop. In this embodiment, the heat insulation cover 2 uses polystyrene foam, asbestos fiberboard, or aluminum silicate fiberboard.

[0056] The first direction is Figure 1 In the left-right direction, the spraying assembly can spray coolant onto the extruded aluminum material in multiple directions perpendicular to the first direction, thereby completing the quenching process. The spraying device in this invention can spray coolant onto the extruded aluminum material in multiple directions, making the quenching effect of various parts of the aluminum material more uniform.

[0057] A second opening 20 is provided on the side wall of the quenching cover 3 corresponding to the first opening 19, for removing the quenched aluminum material from the quenching cover 3.

[0058] Further, refer to Figure 5 The spray assembly includes:

[0059] Multiple annular spray channels 5 are installed inside the quenching cover 3 along the first direction and are connected sequentially through a first pipe 6; one of the annular spray channels 5 is connected to a coolant source; the coolant source is used to inject coolant into the annular spray channel 5.

[0060] The annular spray channel 5 has a spray space inside, and a plurality of atomizing nozzles 7 are installed on the surface near the spray space; when the extruded aluminum material 4 enters the quenching hood 3, it passes through the spray space; the atomizing nozzles 7 are used to spray coolant onto the extruded aluminum material 4.

[0061] Specifically, the spacing between the multiple annular spray channels 5 needs to take into account the spray range of the atomizing nozzle 7 to ensure that the aluminum surface can be completely sprayed with coolant. In this invention, the spacing between the multiple annular spray channels 5 is smaller than the spray diameter of the atomizing nozzle 7.

[0062] Further, refer to Figure 6 The coolant source includes:

[0063] Pump body 8, one end of which is connected to one of the annular spray channels 5;

[0064] A first coolant tank 9 and a second coolant tank 10, wherein the temperature of the coolant stored in the first coolant tank 9 is higher than the temperature of the coolant stored in the second coolant tank 10.

[0065] Three-way valve 11, which is connected to the end of the pump body 8, the first coolant tank 9 and the second coolant tank 10 respectively;

[0066] The three-way valve 11 has a first state and a second state.

[0067] In the first state, the first coolant tank 9 is connected to the pump body 8;

[0068] In the second state, the second coolant tank 10 is connected to the pump body 8.

[0069] Specifically, the first coolant tank 9 stores room temperature coolant; the second coolant tank 10 stores low temperature coolant.

[0070] Furthermore, a temperature sensor 12 is installed inside the heat insulation cover 2 to detect the temperature of the extruded aluminum material 4;

[0071] In this embodiment, the stabilizing sensor 12 uses an infrared thermometer or a thermocouple sensor, which can directly detect the temperature of the aluminum surface.

[0072] The quenching device also includes:

[0073] The controller is electrically connected to the temperature sensor 12 and is used to control the three-way valve 11 to switch to the first state or the second state according to the temperature of the extruded aluminum material 4 detected by the temperature sensor 12.

[0074] Specifically, the quenching effect varies when aluminum is quenched at different temperatures.

[0075] When the temperature of aluminum is close to the maximum value of the suitable quenching temperature range, if a low-temperature coolant is used for quenching, although the quenching effect is good, it is easy to cause the aluminum to crack.

[0076] When the temperature of the aluminum material is close to the minimum of the suitable quenching temperature range, quenching with room temperature coolant will not cause cracking, but the quenching effect will be poor.

[0077] Therefore, when the temperature of the aluminum material is close to the maximum value of the suitable quenching temperature range, a room temperature coolant is generally selected. When the temperature of the aluminum material is close to the minimum value of the suitable quenching temperature range, a low temperature coolant is generally selected.

[0078] Specifically, the following improvements have been made to the solution of this utility model:

[0079] When the temperature of the extruded aluminum material 4 detected by the temperature sensor 12 is greater than 0.9 times the maximum value of the suitable quenching temperature range, the three-way valve 11 is switched to the first state, and the room temperature coolant in the first coolant tank 9 is used to complete the quenching process.

[0080] When the temperature of the extruded aluminum material 4 detected by the temperature sensor 12 is less than or equal to 0.9 times the maximum value of the suitable quenching temperature range, and greater than the minimum value of the suitable quenching temperature range, the three-way valve 11 is switched to the second state, and the low-temperature coolant in the second coolant tank 10 is used to complete the quenching process.

[0081] When the temperature of the extruded aluminum material 4 detected by the temperature sensor 12 is less than or equal to the minimum value of the suitable quenching temperature range, the purpose of quenching cannot be achieved, and the spraying of coolant will not be performed.

[0082] Therefore, it can automatically detect whether it is suitable for quenching and automatically select the temperature of the coolant according to the temperature of the aluminum material, which can reduce the chance of aluminum material cracking while ensuring the quenching effect.

[0083] Further, refer to Figure 3 The transmission component includes:

[0084] Multiple drive rollers 13, wherein the rotation axis of the drive rollers 13 is parallel to the horizontal direction and perpendicular to the first direction;

[0085] The conveyor belt 14 overlaps the plurality of drive rollers 13; the conveyor belt 14 has a mesh structure for the coolant sprayed by the spraying assembly to pass through the conveyor belt 14 and contact the extruded aluminum material 4.

[0086] Specifically, details often overlooked in existing quenching techniques include: aluminum materials on conveyor belts have a poorer quenching effect on the surface closer to the conveyor belt.

[0087] Without a conveyor belt, aluminum at high temperatures retains its ductility, which could cause the starting end of the aluminum material to get stuck between the two drive rollers 13.

[0088] This invention designs the conveyor belt body 14 as a mesh structure. When coolant is sprayed from below, the water mist can pass through the mesh structure and adhere to the surface of the aluminum material, thereby ensuring the quenching effect of the aluminum material on the side close to the conveyor belt body 14.

[0089] Furthermore, it also includes:

[0090] A blower assembly is installed inside the quenching hood 3 and is used to communicate with a gas source to blow gas onto the extruded aluminum material 4 inside the quenching hood 3.

[0091] In some implementations, an inert gas, such as nitrogen, is used. This makes it less likely for the aluminum, already at a high temperature, to oxidize when exposed to both water and oxygen during quenching. The gas source is a blower, and the blower's inlet is connected to a nitrogen storage device.

[0092] Furthermore, the blower assembly includes:

[0093] The second pipe 15 is located below the conveying assembly; the second pipe 15 has multiple air outlets 16 that blow gas toward the conveyor belt body 14.

[0094] After the gas is blown out of the air outlet 16, it passes through the mesh structure conveyor belt 14 and comes into contact with the surface of the extruded aluminum material 4, accelerating the evaporation of water mist adhering to the surface of the aluminum material, accelerating the heat absorption process, and thus completing the quenching process.

[0095] Further, refer to Figure 2 A guide fan blade 17 is also rotatably installed at the air outlet 16; the guide fan blade is used to guide the gas and rotates under the action of the gas to change the guiding direction, thereby changing the blowing direction of the gas.

[0096] Specifically, a bracket is installed on the inner side of the air outlet 16, and the guide fan blade 17 has a rotating shaft that is rotatably mounted on the bracket. Gas can pass through the gaps in the bracket, thereby driving the guide fan blade 17 to rotate.

[0097] In this embodiment, the guide blade 17 borrows from the structural design of an electric fan. Existing electric fans include drive blades and guide blades. The drive blades rotate to move the gas; while the guide blades guide the gas, changing its direction and increasing the fan's blowing range. However, in the electric fan's structural design, the guide blades are actively controlled to rotate.

[0098] The guide blade 17 of this application can rotate relative to the air outlet without active control of rotation. During the process of guiding the gas, the guide blade 17 is also subject to the reaction force of the gas, causing it to rotate and switch the direction of guidance. Therefore, as the guide blade 17 rotates under the effect of the gas reaction force, it continuously changes the direction of gas guidance to achieve the function of blowing air in all directions inside the quenching cover 3.

[0099] Based on the above structural design, the gas movement inside the quenching cover 3 can be more complex and rapid, avoiding temperature differences between different parts and improving the quenching effect.

[0100] Similarly, the sprayed water mist will float in the internal space of the quenching chamber 3 for a longer time due to the movement of the gas, increasing the chance of it adhering to the surface of the aluminum material.

[0101] Furthermore, the annular spray channel 5, the transmission roller 13, and the air outlet 16 are staggered along the first direction.

[0102] This design allows the gas blown out of the air outlet 16 to pass through the mesh structure of the conveyor belt body 14 without being affected by the transmission roller 13, and adhere to the surface of the extruded aluminum material 4 to complete the quenching process. On the other hand, it allows the gas blown out of the air outlet 16 to maintain the gas flow speed without being affected by the transmission roller 13, thus ensuring the quenching effect.

[0103] Furthermore, the first space inside the heat insulation cover 2 is also provided with a vertically movable cutting device 18, which is used to cut the extruded aluminum material 4.

[0104] Specifically, the cutting device 18 includes: a cutting blade, a drive motor, and a telescopic frame.

[0105] The drive motor's rotating shaft is fixedly connected to the cutting tool, and is used to drive the cutting tool to rotate; the drive motor is mounted on the telescopic frame and moves vertically under the drive of the telescopic frame.

[0106] Initially, the cutting device 18 is positioned below the aluminum material. When the aluminum material needs to be cut, the telescopic frame drives the drive motor and the cutting tool to move upward in the vertical direction to complete the cutting process.

[0107] The above description is merely a preferred embodiment of this utility model and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of this utility model is not limited to the specific combination of the above-described technical features, but should also cover other technical solutions formed by any combination of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in this utility model.

Claims

1. An aluminum material quenching device characterized by comprising: The quenching device and the aluminum material extruding device (1) are used for abutting against the side wall of one side of the extruded aluminum material; The quenching device comprises: A quenching cover (3) having a first opening (19) on the side wall of one side of the quenching cover (3) facing the aluminum material extruding device (1) for the extruded aluminum material (4) to enter the quenching cover (3); An adiabatic cover (2) detachably mounted on the side wall of the quenching cover (3) where the first opening (19) is formed and arranged outside the first opening (19); the adiabatic cover (2) and the aluminum material extruding device (1) are used for abutting against the side wall on one side of the extruded aluminum material; The adiabatic cover (2), the side wall of the quenching cover (3) where the first opening (19)is formed and the side wall on one side of the aluminum material extruding device (1) used for extruding the aluminum material form a first space; the adiabatic cover (2) is used for keeping the extruded aluminum material (4) warm before the extruded aluminum material (4) enters the quenching cover (3); A conveying assembly mounted in the quenching cover (3) for driving the extruded aluminum material (4) to move in a first direction; A spraying assembly mounted in the quenching cover (3) for spraying cooling liquid in multiple directions perpendicular to the first direction for quenching the extruded aluminum material (4) entering the quenching cover (3).

2. The aluminum material quenching apparatus according to claim 1, characterized by The spraying assembly comprises: A plurality of annular spraying channels (5) mounted inside the quenching cover (3) in the first direction and communicated in sequence through a first pipeline (6); one of the annular spraying channels (5) is communicated with a cooling liquid source; the cooling liquid source is used for injecting cooling liquid into the annular spraying channel (5); The inside of the annular spraying channel (5) has a spraying space, and a plurality of atomizing nozzles (7) are mounted on the surface close to the side of the spraying space; the extruded aluminum material (4) passes through the spraying space when entering the quenching cover (3); the atomizing nozzles (7) are used for spraying cooling liquid to the extruded aluminum material (4).

3. The aluminum quenching apparatus of claim 2, wherein The cooling liquid source comprises: A pump body (8) communicated at one end with one of the annular spraying channels (5); A first cooling liquid tank (9) and a second cooling liquid tank (10); the temperature of the cooling liquid stored in the first cooling liquid tank (9) is higher than that of the cooling liquid stored in the second cooling liquid tank (10); A three-way valve (11) connected with the end of the pump body (8) and the first cooling liquid tank (9) and the second cooling liquid tank (10); The three-way valve (11) has a first state and a second state, When in the first state, the first cooling liquid tank (9) is communicated with the pump body (8); When in the second state, the second cooling liquid tank (10) is communicated with the pump body (8).

4. The aluminum quenching apparatus of claim 3, wherein A temperature sensor (12) arranged in the adiabatic cover (2) for detecting the temperature of the extruded aluminum material (4); The quenching device further comprises: A controller is electrically connected with the temperature sensor (12), and is used for controlling the three-way valve (11) to switch to the first state or the second state according to the temperature of the extruded aluminum material (4) detected by the temperature sensor (12).

5. The aluminum quenching apparatus of claim 2, wherein The conveying assembly comprises: A plurality of transmission rollers (13) whose rotation axes are parallel to the horizontal direction and perpendicular to the first direction; A conveying belt body (14) which is lapped on the plurality of transmission rollers (13); the conveying belt body (14) is a net structure for the cooling liquid sprayed by the spraying assembly to pass through the conveying belt body (14) and contact the extruded aluminum material (4).

6. The aluminum quenching apparatus of claim 5, wherein Further comprising: An air blowing assembly which is installed in the quenching cover (3) and is used for communicating with a gas source to blow gas to the extruded aluminum material (4) in the quenching cover (3).

7. The aluminum quenching apparatus of claim 6, wherein The air blowing assembly comprises: A second pipeline (15) which is arranged below the conveying assembly; a plurality of air outlets (16) for blowing gas to the conveying belt body (14) are arranged on the second pipeline (15); After the gas is blown out of the air outlets (16), the gas passes through the net structure of the conveying belt body (14) and is attached to the extruded aluminum material (4) to complete the quenching process.

8. The aluminum quenching apparatus of claim 7, wherein A guide fan blade (17) is rotatably installed at the air outlet (16); the guide fan blade is used for guiding the gas and rotating under the action of the gas to change the guide direction and further change the blowing direction of the gas.

9. The aluminum quenching apparatus of claim 7, wherein The annular spraying channel (5), the transmission roller (13) and the air outlet (16) are arranged in the first direction.

10. The aluminum quenching apparatus of claim 1, wherein A cutting device (18) which is vertically liftable is further arranged in the heat insulation cover (2); the cutting device (18) is used for cutting the extruded aluminum material (4).

Images