A three-stage quenching device and process for improving the strength of aluminum profile photovoltaic frames

Abstract

The present invention discloses a three-stage quenching device for improving the strength of aluminum profile photovoltaic frames, belonging to the technical field of aluminum profile quenching, which includes: heat insulation machine boxes, three of which are arranged horizontally in a row. The three heat insulation machine boxes are interconnected with each other and are successively a pre-stage quenching station, a middle-stage quenching station, and a post-stage quenching station; transfer bins, two of which are distributed left and right, and each transfer bin is fixed to the heat insulation machine box; a pusher, arranged outside the transfer bin; a quenching and cooling device, arranged in each heat insulation machine box; an air supply pipe, vertically arranged above each heat insulation machine box, and the air supply pipe is connected to the quenching and cooling device; a water supply pump, arranged below each heat insulation machine box, and one end of the water supply pump is connected to the quenching and cooling device; in the present invention, when the aluminum profile is quenched and cooled in three stages, each quenching and cooling device can adopt the best cooling and temperature reduction working form to quench and cool it, improving the quenching and temperature reduction effect.

Description

Technical Field

[0001] The present invention belongs to the technical field of aluminum profile quenching, and specifically relates to a three-stage quenching device and process for improving the strength of aluminum profile photovoltaic frames. Background Art

[0002] In photovoltaic panels, aluminum profiles are mostly used as the main body of the frame. Aluminum profiles have a low density and high strength. The frames made of aluminum profiles are both lightweight and strong, and can withstand external forces such as wind pressure and snow load. At the same time, they have corrosion resistance and good mechanical properties, which reduce the maintenance cost and replacement frequency of photovoltaic modules throughout their life cycle. During the processing of aluminum profiles, they need to undergo quenching and cooling treatments to make their comprehensive technical performance indicators such as hardness and strength meet the quality requirements of aluminum profile products. In the prior art, such as the invention patent with the patent number: CN201610068055.5, it can improve the control accuracy of the cooling speed at different positions through a three-stage quenching and cooling device. However, since both its spraying device and air-cooling device are fixedly installed, it can only perform quenching and temperature reduction through a specified quenching method during the three-stage quenching of aluminum profiles. Although the cooling working intensity can be changed by stepless adjustment of the nozzle flow rate, its economic practicality is not high, and it cannot flexibly adapt to the quenching processing of aluminum profiles of different specifications and models.

[0003] Therefore, it is necessary to provide a three-stage quenching device and process for improving the strength of aluminum profile photovoltaic frames to solve the problems raised in the above background art. Summary of the Invention

[0004] To achieve the above object, the present invention provides the following technical solution: A three-stage quenching device for improving the strength of aluminum profile photovoltaic frames, which includes:

[0005] Heat insulation machine boxes, three of which are arranged horizontally in a row. The three heat insulation machine boxes are interconnected with each other and are successively the front-stage quenching station, the middle-stage quenching station, and the rear-stage quenching station;

[0006] Transfer bins, two of which are distributed left and right. Each transfer bin is fixed to the heat insulation machine box;

[0007] A pusher, which is arranged outside the transfer bin. The pusher is used to send the aluminum profile heated by a high-temperature furnace into the heat insulation machine box through the transfer bin for quenching and cooling;

[0008] A quenching and cooling device, which is arranged in each heat insulation machine box. The quenching and cooling device forms three-stage quenching of the aluminum profile at the front-stage quenching station, the middle-stage quenching station, and the rear-stage quenching station in sequence;

[0009] Air supply pipes, which are vertically arranged above each heat insulation machine box. The air supply pipes are connected to the quenching and cooling device;

[0010] A water supply pump is arranged below each of the heat-insulating machine boxes, and one end of the water supply pump is connected to the quenching and cooling device.

[0011] A thickness measuring sensor is arranged in the transfer bin near the quenching station in the front stage. The thickness measuring sensor is used to measure the thickness of the aluminum profile transmitted in the transfer bin and obtain the thickness data of the aluminum profile. A temperature sensor is also arranged in the transfer bin for detecting and obtaining the initial temperature of the aluminum profile.

[0012] A central control module is arranged outside the heat-insulating machine box. The central control module dynamically adjusts each of the quenching and cooling devices according to the initial temperature of the aluminum profile, the thickness data of the aluminum profile, and the conventional temperature change curve during the quenching and cooling of the aluminum profile, so that the quenching and cooling devices in the front-stage quenching station, the middle-stage quenching station, and the rear-stage quenching station adopt the best cooling and temperature reduction working form to quench and cool the aluminum profile.

[0013] Further, as a preference, a plurality of transfer rollers are circumferentially distributed in each of the transfer bins. The central axis of the transfer roller is arranged parallel to the transmission direction of the aluminum profile. The plurality of transfer rollers are in circumferential contact with the periphery of the aluminum profile and drive the aluminum profile to rotate and transmit.

[0014] Further, as a preference, the quenching and cooling device includes:

[0015] An outer fixed cylinder is installed in the heat-insulating machine box. Two fixed sleeves are symmetrically and rotatably arranged on the left and right of the outer fixed cylinder, and the fixed sleeves are both coaxially arranged with the outer fixed cylinder.

[0016] A plurality of connecting rods are arranged in a circle. Each of the connecting rods is horizontally connected between the two fixed sleeves.

[0017] A spray disc and an air flow disc are both slidably installed on the connecting rod.

[0018] A transmission gear is sleeved and fixed on one of the fixed sleeves. A driving gear is rotatably connected outside the outer fixed cylinder. The driving gear is meshed with the transmission gear for transmission. A motor is installed outside the outer fixed cylinder, and the output end of the motor is fixed to the driving gear.

[0019] Further, as a preference, a plurality of the spray discs and the air flow discs are detachably combined and arranged between the fixed sleeves.

[0020] Further, as a preference, the spray disc includes:

[0021] A central disc, on the outside of which a sealing ring is coaxially sleeved. A plurality of connecting ribs are circumferentially distributed in the sealing ring. One end of the connecting rib is fixed to the side wall of the central disc. A diversion cavity is formed by the cooperation between the sealing ring and the central disc.

[0022] An assembly ring is rotatably sleeved on the outside of the sealing ring, wherein the assembly ring cooperates with the sealing ring to form a flow cavity, and a plurality of guide holes are distributed on the circumference of the sealing ring, wherein the flow cavity is connected to the guide cavity through the guide holes;

[0023] An upper pipe section is vertically connected to the assembly ring, and one end of the upper pipe section is connected to the water supply pump;

[0024] The spray components are circumferentially distributed in the central disk, and one end of each of the spray components is connected to the guide cavity.

[0025] Furthermore, preferably, the spray assembly includes:

[0026] The spray pipe has an inner cavity, in which a connecting pipe is slidably connected;

[0027] A compression spring is sleeved on the connecting pipe, and one end of the compression spring is connected to the inner wall of the spray pipe;

[0028] A side flow hole is provided on one side of the spray pipe, the spray pipe is externally connected to a transfer tube, and the transfer tube is connected to the side flow hole;

[0029] A diffusion nozzle is installed directly below the spray pipe, and a jet nozzle is installed at the lower end of the transfer pipe;

[0030] The positioning ring is coaxially arranged in the inner cavity of the spray pipe and located above the side flow hole. The connecting pipe is sleeved with an isolation sleeve, and the outer wall of the isolation sleeve is in sealing contact with the inner wall of the positioning ring.

[0031] Furthermore, preferably, a spherical end plug is fixed to the inner cavity of the spray pipe, one end of the spherical end plug is inserted into the connecting pipe, a reduction hole is provided inside the connecting pipe, and one end of the spherical end plug is in sealing contact with the reduction hole;

[0032] The compression spring controls the connecting pipe to lift upward under the action of elastic force, so that the isolation sleeve is in sealing contact with the positioning ring, and at this time the spherical end plug is separated from the shrinking hole.

[0033] Furthermore, preferably, the compression springs of the spray assemblies on the central disk are of the same or different models, so that the spray assemblies on the central disk can cool the aluminum profiles through the diffusion nozzle or the jet nozzle in the same pressure spraying.

[0034] Furthermore, preferably, the airflow disk adopts a center disk, assembly ring, upper section pipe and sealing ring with the same structure as the spray disk, the upper section pipe in the airflow disk is connected to the air supply pipe, and multiple air channels are radially distributed on the inner circumference of the center disk.

[0035] Furthermore, as an optimization, a three-stage quenching process for improving the strength of aluminum alloy profiles for photovoltaic frames

[0036] comprises the following steps:

[0037] S1. Preprocessing of the aluminum alloy profiles: adopting a composite sealing hole technology, namely a three-step sealing hole process of low-temperature nickel fluoride sealing hole + low-temperature fluozirconate sealing hole + high-temperature alkaline silicate sealing hole, to improve the acid and alkali resistance of the aluminum alloy profiles, and then heating the aluminum alloy profiles in a high-temperature furnace and entering the next quenching stage;

[0038] S2. Obtaining characteristic information of the aluminum alloy profiles: respectively detecting and obtaining the initial temperature and thickness data of the aluminum alloy profiles through a thickness measuring sensor and a temperature sensor, and dynamically adjusting the quenching cooling devices in each pre-stage quenching station, middle-stage quenching station and post-stage quenching station based on the conventional variable temperature curve under the quenching cooling of the aluminum alloy profiles according to the requirements of the aluminum alloy profile quenching process, so as to ensure that the aluminum alloy profiles can be treated specifically after each stage of quenching; wherein, the central control module continuously collects the actual cooling effect data, compares it with the target value, and automatically adjusts the working parameters of the quenching cooling device, such as the flow rate, pressure and temperature of the cooling medium, if necessary, to achieve the best quenching effect;

[0039] S3. Dynamic adjustment of the quenching cooling device: manually disassembling and reorganizing each spray disc and air flow disc in the quenching cooling device, so that it can adopt different cooling intensities of cold air + water mist for quenching cooling during quenching work;

[0040] S4. Feeding and transporting the aluminum alloy profiles: pushing the aluminum alloy profiles into the transfer bin through a pusher, and the transfer rollers in the transfer bin rotate simultaneously to make the aluminum alloy profiles achieve rotary transmission;

[0041] S5. Quenching of the aluminum alloy profiles: the aluminum alloy profiles sequentially pass through the pre-stage quenching station, middle-stage quenching station and post-stage quenching station, and the surface of the aluminum alloy profiles is quenched and cooled by each quenching cooling device;

[0042] S6. Post-treatment: the quenched aluminum alloy profiles can be subjected to aging treatment, that is, reheated to a lower temperature and held for a period of time to promote precipitation hardening and further improve the mechanical properties of the material;

[0043] S7. Surface treatment: by means of sandblasting, anodic oxidation, etc., to increase the surface hardness and corrosion resistance of the aluminum alloy profiles.

[0044] Compared with the prior art, the beneficial effects of the present invention are:

[0045] In the present invention, the mainly adopted three-stage quenching equipment can, according to the initial temperature of the aluminum profile and the thickness data of the aluminum profile, combined with the aluminum profile processing process requirements and the conventional variable temperature curve under the quenching and cooling of the aluminum profile, dynamically adjust the quenching and cooling devices in each stage first, so that the aluminum profile can adopt the best cooling and temperature reduction working form through the quenching and cooling devices when passing through each stage of quenching and cooling, and has high flexibility and adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 is a schematic structural diagram of the present invention;

[0047] Figure 2 is a schematic structural diagram of the quenching and cooling device in the present invention;

[0048] Figure 3 is a schematic structural diagram of the spray disc in the present invention;

[0049] Figure 4 is Figure 3 the enlarged schematic diagram at A in

[0050] Figure 5 is a schematic structural diagram of the air flow disc in the present invention;

[0051] In the figure: 1, heat insulation machine box; 11, transfer bin; 12, air supply pipe; 13, water supply pump; 14, transfer roller; 2, quenching and cooling device; 21, outer fixed cylinder; 22, fixed sleeve; 23, connecting rod; 24, driving gear; 25, motor; 3, spray disc; 31, central disc; 32, sealing ring; 33, connecting rib; 34, assembly ring; 35, guide through hole; 36, upper section pipe; 4, air flow disc; 41, air duct; 5, spray assembly; 51, spray pipe; 52, connecting pipe; 53, adapter pipe; 54, diffusion nozzle; 55, jet nozzle; 56, positioning ring; 57, isolation sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0052] Please refer to Figures 1-5 , in the embodiment of the present invention, a three-stage quenching equipment for improving the strength of the aluminum profile photovoltaic frame includes:

[0053] Heat insulation machine boxes 1, which are arranged horizontally in three, and the three heat insulation machine boxes 1 are communicated with each other and are successively a pre-stage quenching station, a middle-stage quenching station and a post-stage quenching station;

[0054] Transfer bins 11, which are two distributed left and right, and each transfer bin 11 is fixed to the heat insulation machine box 1;

[0055] Thrusters, which are arranged outside the transfer bin 11, and the thrusters are used to send the aluminum profile heated by the high-temperature furnace into the heat insulation machine box 1 through the transfer bin 11 for quenching and cooling;

[0056] The quenching and cooling device 2 is arranged in each of the heat insulation machine boxes 1, and the quenching and cooling device 2 quenches the aluminum profile in a three-stage manner at the front-stage quenching station, the middle-stage quenching station, and the rear-stage quenching station in sequence.

[0057] The air supply pipe 12 is vertically arranged above each of the heat insulation machine boxes 1, and the air supply pipe 12 is connected to the quenching and cooling device 2.

[0058] The water supply pump 13 is arranged below each of the heat insulation machine boxes 1, and one end of the water supply pump 13 is connected to the quenching and cooling device 2.

[0059] The thickness measuring sensor (not shown in the figure) is arranged in the transfer bin 11 near the front-stage quenching station. The thickness measuring sensor is used to measure the thickness of the aluminum profile transported in the transfer bin 11 and obtain the thickness data of the aluminum profile. A temperature sensor (not shown in the figure) is also arranged in the transfer bin 11, which is used to detect and obtain the initial temperature of the aluminum profile.

[0060] The central control module is arranged outside the heat insulation machine box 1. The central control module dynamically adjusts each of the quenching and cooling devices according to the initial temperature of the aluminum profile, the thickness data of the aluminum profile, and the conventional temperature change curve during the quenching and cooling of the aluminum profile, so that the quenching and cooling device 2 in the front-stage quenching station, the middle-stage quenching station, and the rear-stage quenching station quenches and cools the aluminum profile in the best cooling and temperature reduction working form. That is, the central control module uses the built-in algorithm and the temperature change curve of the corresponding model of aluminum profile to customize a personalized cooling plan for aluminum profiles of different specifications and initial states. Each characteristic of the aluminum profile (such as thickness and material) will affect the optimal range of its cooling rate, so as to avoid deformation or cracking caused by excessive thermal stress. Therefore, according to the customized cooling strategy, the central control module dynamically adjusts the quenching and cooling devices in the front-stage, middle-stage, and rear-stage quenching stations. This includes adjusting the flow rate, pressure, temperature, and cooling time of the cooling medium to ensure that the cooling conditions at each station are perfectly matched with the current state and process requirements of the aluminum profile.

[0061] In this embodiment, a plurality of transfer rollers 14 are circumferentially distributed in each of the transfer bins 11. The central axis of the transfer rollers 14 is arranged parallel to the aluminum profile transmission direction. The plurality of transfer rollers 14 are in circumferential contact with the periphery of the aluminum profile and drive the aluminum profile to rotate and transmit, improving the uniformity of quenching and cooling.

[0062] As a preferred embodiment, the quenching and cooling device 2 includes:

[0063] The outer fixed cylinder 21 is installed in the heat insulation machine box 1. Two fixed sleeves 22 are symmetrically rotatably arranged on the left and right of the outer fixed cylinder 21, and the fixed sleeves 22 are both coaxially arranged with the outer fixed cylinder 21.

[0064] The connecting rods 23 are provided in a plurality and arranged in a circle. Each of the connecting rods 23 is horizontally connected between the two fixed sleeves 22;

[0065] The spray disc 3 and the air flow disc 4 are both slidably mounted on the connecting rod 23;

[0066] The transmission gear is sleeved and fixed on one of the fixed sleeves 22. The outer fixed cylinder 21 is rotatably connected with a driving gear 24. The driving gear 24 is engaged with the transmission gear for transmission. An electric motor 25 is installed outside the outer fixed cylinder 21, and the output end of the electric motor 25 is fixed to the driving gear 24. That is, during quenching and cooling, each spray disc 3 and air flow disc 4 can perform cold air or water mist spraying during working rotation, so as to realize quenching and temperature reduction of the aluminum profile. It should be noted that the rotation directions of the spray disc 3 and the air flow disc 4 are opposite to the rotation direction of the aluminum profile to ensure the uniformity of quenching.

[0067] In this embodiment, a plurality of the spray discs 3 and the air flow discs 4 are detachably combined and arranged between the fixed sleeves 22. That is, by adjusting the number and arrangement mode of the spray discs 3 and the air flow discs 4 in the quenching and cooling device, the main body of the temperature reduction work of the quenching and cooling device can be adjusted, that is, mainly cold air cooling or mainly water mist cooling or a combination of both, so as to improve the adaptability and flexibility of the use of the quenching and cooling device.

[0068] In this embodiment, the spray disc 3 includes:

[0069] A central disc 31, with a sealing ring 32 sleeved concentrically on the outside thereof. A plurality of connecting ribs 33 are distributed on the inner circumference of the sealing ring 32. One end of the connecting rib 33 is fixed to the side wall of the central disc 31. A diversion cavity is formed by the cooperation between the sealing ring 32 and the central disc 31;

[0070] An assembly ring 34 is rotatably sleeved outside the sealing ring 32. A flow cavity is formed by the cooperation between the assembly ring 34 and the sealing ring 32. A plurality of guide through holes 35 are distributed on the circumference of the sealing ring 32. The flow cavity is communicated with the diversion cavity through the guide through holes 35;

[0071] An upper section pipe 36 is vertically connected to the assembly ring 34, and one end of the upper section pipe 36 is communicated with the water supply pump 13;

[0072] The spray assemblies 5 are distributed in a circle in the central disc 31. One end of each of the spray assemblies 5 is communicated with the diversion cavity. Among them, the connecting rod passes through the central disc. When the driving gear drives the fixed sleeve to rotate through the transmission gear, the central disc rotates synchronously with the fixed sleeve, while the assembly ring is in a relatively static state and does not rotate with the fixed sleeve. When the water supply pump conveys high-pressure water into the assembly ring through the upper section pipe, the high-pressure water can enter the diversion cavity through the guide through holes, and then enter each spray assembly.

[0073] In this embodiment, the spray assembly 5 includes:

[0074] The spray pipe 51 has an inner cavity, in which a connecting pipe 52 is slidably connected;

[0075] A compression spring is sleeved on the connecting pipe 52, and one end of the compression spring is connected to the inner wall of the spray pipe 51;

[0076] A side flow hole is provided on one side of the spray pipe 51. The spray pipe 51 is externally connected to a transfer tube 53, and the transfer tube 53 is connected to the side flow hole;

[0077] The diffusion nozzle 54 is installed directly below the spray pipe 51, and the lower end of the transfer tube 53 is installed with a jet nozzle 55;

[0078] The positioning ring 56 is coaxially arranged in the inner cavity of the spray pipe 51 and located above the side flow hole. The connecting pipe 52 is provided with an isolation sleeve 57. The outer wall of the isolation sleeve 57 is in sealing contact with the inner wall of the positioning ring 56.

[0079] As a preferred embodiment, a spherical end plug is fixed to the inner cavity of the spray pipe 51, one end of the spherical end plug is inserted into the connecting pipe 52, and a reduction hole is provided inside the connecting pipe 52, and one end of the spherical end plug is in sealing contact with the reduction hole;

[0080] The compression spring controls the connecting pipe 52 to lift upward under the action of elastic force, so that the isolation sleeve 57 is in sealing contact with the positioning ring 56. At this time, the spherical end plug is separated from the reduction hole, that is, when the water supply pump delivers water at a relatively low pressure, low-pressure water enters the spray pipe and is sprayed out through the diffusion nozzle below the spray pipe. When the water supply pump delivers water at a relatively high pressure, high-pressure water enters the spray pipe. At this time, the high-pressure water can push the connecting pipe to slide down so that the spherical end plug is in sealing contact with the reduction hole. The connecting pipe reaches the end blockage, the isolation sleeve is separated from the positioning ring, and the high-pressure water enters the transfer pipe and is sprayed out at high pressure through the jet nozzle.

[0081] In this embodiment, the compression springs of the spray components 5 on the central disk 31 are of the same or different models, so that each spray component 5 on the central disk 31 cools the aluminum profile through the diffusion nozzle 54 or the jet nozzle 55 during the same-pressure spraying, that is, the spray disk can be divided into different specifications according to the specification strength of the compression springs in each of its internal spray components (for example, the compression springs in each spray component in the spray disk mostly use low elastic strength. At this time, when the water flow enters each spray component in the spray disk, it is sprayed through each jet nozzle, and the aluminum profile is cooled rapidly. When the compression springs in each spray component in the spray disk mostly use high elastic strength, at this time, when the water flow enters each spray component in the spray disk, it is sprayed through each diffusion nozzle, and the aluminum profile is cooled slowly). Thus, spray disks of different specification models are assembled and combined to form different cooling effects on the aluminum profile.

[0082] In this embodiment, the air flow disk 4 adopts the central disk 31, the assembly ring 34, the upper section pipe 36 and the sealing ring 32 with the same structure as the spray disk 3. The upper section pipe 36 in the air flow disk 4 is connected to the air supply pipe 12. A plurality of air channels 41 are radially distributed on the inner circumference of the central disk 31. The air flow disk can also be divided into different specifications according to the number, size, etc. of the internal air channels, so as to select air flow disks of different specifications for assembly and combination to form different cooling effects on the aluminum profile.

[0083] A three-stage quenching process for improving the strength of the aluminum profile for photovoltaic frames includes the following steps:

[0084] S1. Preprocessing of the aluminum profile. The composite sealing hole technology, namely the three-step sealing hole process of low-temperature nickel fluoride sealing hole + low-temperature fluozirconate sealing hole + high-temperature alkaline silicate sealing hole, is adopted to improve the acid and alkali resistance of the aluminum profile. Then, the aluminum profile is heated in a high-temperature furnace and enters the next quenching stage. Among them, an anti-crack structure can also be adopted. A diversion groove is set to greatly reduce the hot spot effect caused by dirt blockage. A heat dissipation window is set to effectively reduce the working temperature of the photovoltaic module by about 3.8°F. The crack rate of the photovoltaic module with a compressive cross beam is decreased by 47% year-on-year compared with that without a compressive cross beam, and the power attenuation rate of the module is decreased from 6.3% to 3.5%, which can ensure normal operation in harsh environments such as sandstorms, rain and snow, and greatly improve the power generation and working life of the product.

[0085] S2. Acquiring characteristic information of the aluminum profile: Using a thickness sensor and a temperature sensor to measure the initial temperature and thickness of the aluminum profile, respectively, the quenching and cooling device 2 in each pre-quenching station, mid-quenching station, and post-quenching station is dynamically adjusted based on the typical temperature curve of the aluminum profile during quenching and cooling, according to the aluminum profile quenching process requirements. This ensures that the aluminum profile receives targeted treatment during each quenching stage. The central control module continuously collects actual cooling effect data, compares it with the target value, and automatically adjusts the operating parameters of the quenching and cooling device 2, such as the cooling medium flow rate, pressure, and temperature, as necessary, to achieve the optimal quenching effect.

[0086] S3. Dynamic adjustment of the quenching and cooling device, manually disassembling and reorganizing the spray plates 3 and the airflow plate 4 in the quenching and cooling device 2, so that it can use cold air + water mist in different cooling intensities for quenching and cooling;

[0087] S4 aluminum profile transmission into the pusher to push the aluminum profile into the transfer bin 11, the transfer roller 14 in the transfer bin 11 while rotating so that the aluminum profile to achieve rotational transmission;

[0088] S5 aluminum profile quenching, aluminum profile sequentially through the front section quenching station, the middle section quenching station and the rear section quenching station, through the quenching cooling device 2 to quench its surface;

[0089] S6. Subsequent treatment: After quenching, the aluminum profile can undergo aging treatment, which means heating it to a lower temperature again and keeping it warm for a period of time to promote precipitation hardening and further improve the mechanical properties of the material;

[0090] S7. Surface treatment, such as sandblasting and anodizing, to increase the surface hardness and corrosion resistance of the aluminum profile.

[0091] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A three-stage quenching device for improving the strength of aluminum profile photovoltaic frames, characterized in that: It includes: Three heat-insulating machine boxes arranged horizontally, which are interconnected with each other, and are successively the front-stage quenching station, the middle-stage quenching station, and the rear-stage quenching station; Two transfer bins distributed left and right, and each transfer bin is fixed to the heat-insulating machine box; A pusher is arranged outside the transfer bin, and the pusher is used to send the aluminum profile heated by the high-temperature furnace into the heat-insulating machine box through the transfer bin for quenching and cooling; A quenching and cooling device is arranged in each heat-insulating machine box, and the quenching and cooling device forms a three-stage quenching of the aluminum profile at the front-stage quenching station, the middle-stage quenching station, and the rear-stage quenching station in sequence; An air supply pipe is vertically arranged above each heat-insulating machine box, and the air supply pipe is connected to the quenching and cooling device; A water supply pump is arranged below each heat-insulating machine box, and one end of the water supply pump is connected to the quenching and cooling device; A thickness measurement sensor is arranged in the transfer bin near the front-stage quenching station. The thickness measurement sensor is used to measure the thickness of the aluminum profile transmitted in the transfer bin and obtain the thickness data of the aluminum profile; a temperature sensor is also arranged in the transfer bin to detect and obtain the initial temperature of the aluminum profile; A central control module is arranged outside the heat-insulating machine box. The central control module dynamically adjusts each quenching and cooling device according to the initial temperature of the aluminum profile, the thickness data of the aluminum profile, and the conventional temperature change curve during the quenching temperature reduction of the aluminum profile, so that the quenching and cooling devices in the front-stage quenching station, the middle-stage quenching station, and the rear-stage quenching station adopt the best cooling and temperature reduction working form to quench and cool the aluminum profile; The quenching and cooling device includes: An outer fixed cylinder is installed in the heat-insulating machine box, and two fixed sleeves are symmetrically rotatably arranged on the left and right of the outer fixed cylinder, and the fixed sleeves are coaxially arranged with the outer fixed cylinder; A plurality of connecting rods are arranged in a circle, and each connecting rod is horizontally connected between the two fixed sleeves; A spray disc and an air flow disc are both slidably installed on the connecting rod; The spray disc includes: A central disc, and a sealing ring is sleeved concentrically on the outside of the central disc. A diversion cavity is formed by the cooperation between the sealing ring and the central disc; Spray components are circumferentially distributed in the central disc, and one end of each spray component is connected to the diversion cavity; The spray component includes: A spray pipe, and an inner cavity is arranged inside the spray pipe, and a connecting pipe is slidably connected in the inner cavity; A compression spring is sleeved on the connecting pipe, and one end of the compression spring is connected to the inner wall of the spray pipe; A side flow hole is opened on one side of the spray pipe, and a transfer pipe is connected outside the spray pipe, and the transfer pipe is connected to the side flow hole; A diffusion nozzle is installed directly below the spray pipe, and a jet nozzle is installed at the lower end of the transfer pipe; A spherical end plug is fixed in the inner cavity of the spray pipe, one end of the spherical end plug extends into the connecting pipe, and a reducing hole is arranged inside the connecting pipe, and one end of the spherical end plug is in sealing contact with the reducing hole.

2. The three-stage quenching equipment for improving the strength of aluminum profile photovoltaic frames according to claim 1, characterized in that: A plurality of transfer rollers are circumferentially distributed in each transfer bin. The central axis of the transfer roller is arranged parallel to the transmission direction of the aluminum profile. The plurality of transfer rollers are in circumferential contact with the periphery of the aluminum profile and drive the aluminum profile to rotate and transmit.

3. The three-stage quenching equipment for improving the strength of aluminum profile photovoltaic frames according to claim 1, characterized in that: The quenching and cooling device further includes: The transmission gear is sleeved and fixed on one of the fixed sleeves. The outer fixed cylinder is rotatably connected with a driving gear. The driving gear is engaged with the transmission gear for transmission. A motor is installed outside the outer fixed cylinder, and the output end of the motor is fixed to the driving gear.

4. The three-stage quenching equipment for improving the strength of aluminum profile photovoltaic frames according to claim 3, wherein: A plurality of the spray plates and the air flow plates are arranged in a detachable combination and installed between the fixing sleeves.

5. A three-stage quenching device for improving the strength of aluminum profile photovoltaic frames according to claim 3, characterized in that: A plurality of connecting ribs are distributed on the inner circumference of the sealing ring, and one end of the connecting rib is fixed to the side wall of the center disk; An assembly ring is rotatably sleeved on the outside of the sealing ring, wherein the assembly ring cooperates with the sealing ring to form a flow cavity, and a plurality of guide holes are distributed on the circumference of the sealing ring, wherein the flow cavity is connected to the guide cavity through the guide holes; The upper pipe section is vertically connected to the assembly ring, and one end of the upper pipe section is connected to the water supply pump.

6. The three-stage quenching equipment for improving the strength of aluminum profile photovoltaic frames according to claim 5, characterized in that: The spray assembly also includes: The positioning ring is coaxially arranged in the inner cavity of the spray pipe and located above the side flow hole. The connecting pipe is sleeved with an isolation sleeve, and the outer wall of the isolation sleeve is in sealing contact with the inner wall of the positioning ring.

7. The three-stage quenching equipment for improving the strength of aluminum profile photovoltaic frames according to claim 6, characterized in that: The compression spring controls the connecting pipe to lift upward under the action of elastic force, so that the isolation sleeve is in sealing contact with the positioning ring, and at this time the spherical end plug is separated from the shrinking hole.

8. The three-stage quenching device for improving the strength of aluminum profile photovoltaic frames according to claim 7, characterized in that: The compression springs of the spray assemblies on the central disk are of the same or different types, so that the spray assemblies on the central disk can cool the aluminum profiles through the diffusion nozzle or the jet nozzle in the same pressure spraying.

9. The three-stage quenching equipment for improving the strength of aluminum profile photovoltaic frames according to claim 8, characterized in that: The airflow disk adopts the same structure as the spray disk, including the center disk, assembly ring, upper section pipe and sealing ring. The upper section pipe in the airflow disk is connected to the air supply pipe. Multiple air channels are radially distributed on the inner circumference of the center disk.

10. A three-stage quenching process for improving the strength of aluminum alloy photovoltaic frame, which uses a three-stage quenching device for improving the strength of aluminum alloy photovoltaic frame as described in any one of claims 1-9, characterized in that: It includes the following steps: S1. Aluminum profiles are pre-processed using a three-step sealing process: low-temperature nickel fluoride sealing, low-temperature fluorozirconate sealing, and high-temperature alkaline silicate sealing. This improves the profiles' acid and alkali resistance. The profiles are then heated in a high-temperature furnace and enter the next quenching stage. S2. Acquisition of aluminum profile characteristic information: Using thickness sensors and temperature sensors to measure the initial temperature and thickness of the aluminum profile, the quenching and cooling devices in the pre-quenching, mid-quenching, and post-quenching stations are dynamically adjusted based on the typical temperature curve of the aluminum profile during quenching and cooling, ensuring that the aluminum profile receives targeted treatment during each quenching stage. The central control module continuously collects actual cooling effect data, compares it with target values, and automatically adjusts the operating parameters of the quenching and cooling devices, including the cooling medium flow rate, pressure, and temperature, to achieve the optimal quenching effect. S3. Dynamic adjustment of the quenching and cooling device. Manual disassembly and reassembly of the spray plates and airflow plates in the quenching and cooling device enables quenching and cooling using different cooling intensities of cold air + water mist during quenching. S4. The aluminum profile is transferred into the transfer bin by a pusher. The transfer rollers in the transfer bin rotate at the same time, allowing the aluminum profile to be transferred in a rotating manner. S5. Aluminum profile quenching, the aluminum profile passes through the pre-stage quenching station, the middle-stage quenching station and the post-stage quenching station in sequence, and its surface is quenched and cooled by each quenching and cooling device; S6. Post-treatment, the quenched aluminum profile undergoes aging treatment, that is, it is reheated to a lower temperature and held for a period of time to promote precipitation hardening and further improve the mechanical properties of the material; S7. Surface treatment, by means of sandblasting and anodic oxidation to increase the surface hardness and corrosion resistance of the aluminum profile.

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