An alkaline washing device for aluminum profiles

Abstract

This utility model relates to the technical field of aluminum profile production equipment, and discloses an alkaline washing device for aluminum profiles, including an alkaline washing tank, a hoisting device, and a support frame. The support frame includes four threaded connecting rods, a perforated plate A, a perforated plate B, and a perforated plate C. A support frustum with an open upper surface is fixedly installed below the support circular hole of the perforated plate A, and the side and bottom surfaces of the support frustum are provided with leakage holes. An inverted U-shaped hanging ring is detachably fixed at the center of the upper surface of the perforated plate C. After the aluminum profile passes through the corresponding support circular holes of the perforated plates C, B, and A in sequence, its bottom extends into the interior of the support frustum. The hoisting device is connected to the hanging ring via a hook, and the hoisting support frame is immersed in the alkaline washing tank. This utility model's alkaline washing device can wash multiple aluminum profiles at once, and by using the method of entering the alkaline washing tank, the surface of the aluminum profile can fully contact the alkaline washing solution, resulting in thorough washing, high efficiency, and minimal heat loss, thus saving costs.

Description

Technical Field

[0001] This utility model belongs to the technical field of aluminum profile production equipment, and in particular relates to an alkaline washing device for aluminum profiles. Background Technology

[0002] Alkaline washing of aluminum profiles is a key process in aluminum surface treatment. The main purpose of alkaline washing is to thoroughly remove the oxide film and provide a uniform conductive substrate for the formation of the oxide layer; or to eliminate minor surface defects (such as mold marks and scratches) to obtain a smooth or sandblasted surface effect; or to remove residual grease and contaminants, and also to assist in degreasing.

[0003] Chinese utility model patent CN214060651U, entitled "An Alkali Washing Device for Aluminum Profiles," discloses a device comprising an alkaline water tank and two vertically parallel baffles. The alkaline water tank has rotatable stirring blades inside, an alkaline filter screen at the bottom of its inner cavity, and a water outlet located below the alkaline filter screen on the lower side of the tank. Multiple sets of cleaning sprays are arranged inside the baffles, and the water outlet of the alkaline water tank is connected to the input end of the cleaning spray sets. This utility model, by incorporating stirring blades and an alkaline filter screen inside the alkaline water tank, utilizes these elements in combination. The rapid stirring of the stirring blades accelerates the dissolution of alkali in water and reduces the presence of alkaline particles. The alkaline filter screen blocks undissolved alkaline particles above the water outlet, preventing them from clogging the cleaning spray sets. The stirring action of the stirring blades further promotes the dissolution of undissolved alkaline particles, thus improving efficiency.

[0004] The above-mentioned device has the following problems:

[0005] ① During the alkaline washing process, an alkaline washing solution is sprayed onto the aluminum profiles using a cleaning spray group; however, the alkaline solution sprayed in this process is only placed on both sides of the aluminum profiles, which cannot fully allow the outer surface of the aluminum profiles to come into full contact with the alkaline solution, resulting in incomplete alkaline washing.

[0006] ② When aluminum profiles are alkaline washed, they are hoisted one by one through the cleaning spray unit, resulting in low alkaline washing efficiency; and hoisting requires each profile to be connected to a hook, which is also quite cumbersome; if the aluminum profiles to be alkaline washed have a special structure and cannot use general hooks, special clamps need to be designed to hoist the aluminum profiles, which is less flexible.

[0007] ③ During the alkaline washing process, there are temperature requirements for the alkaline washing solution. The water mist sprayed by the cleaning spray group will quickly dissipate a certain amount of heat before it can come into contact with the aluminum profile. The heat loss is relatively large, which increases the cost.

[0008] Therefore, there is an urgent need for an alkaline washing device for aluminum profiles to solve the above-mentioned technical problems. Utility Model Content

[0009] The purpose of this invention is to overcome existing technical problems and provide an alkaline washing device for aluminum profiles.

[0010] To achieve the above objectives, this utility model is implemented according to the following technical solution:

[0011] An alkaline washing device for aluminum profiles includes an alkaline washing tank, a hoisting device, and a support frame;

[0012] The support frame includes four threaded connecting rods, perforated plate A, perforated plate B, and perforated plate C; perforated plate A, perforated plate B, and perforated plate C are the same size, are all rectangular plates, and each has multiple supporting round holes in the same position; a threaded connecting rod passes through each of the four corners of perforated plate A, perforated plate B, and perforated plate C, and limit nuts are threaded onto the threaded connecting rods located above and below perforated plate A, perforated plate B, and perforated plate C, so that perforated plate A, perforated plate B, and perforated plate C are fixed to the threaded connecting rods from bottom to top;

[0013] A support frustum with an open upper end is fixedly installed below the support circular hole of the orifice plate A. The diameter of the upper end of the support frustum is larger than the diameter of the lower end of the support frustum. Drainage holes are provided on the side and bottom of the support frustum. An inverted U-shaped hanging ring is detachably fixed at the center of the upper end of the orifice plate C.

[0014] After the aluminum profile passes through the corresponding support holes of the perforated plate C, perforated plate B, and perforated plate A in sequence, its bottom extends into the interior of the support frustum; the hoisting device is connected to the hanging ring through hooks, and the hoisting support frame is immersed in the alkaline washing tank.

[0015] In use, this invention uses a support frame to hold aluminum profiles. The distance between the perforated plates A, B, and C on the support frame is adjustable, making it suitable for aluminum profiles of various lengths. Furthermore, any aluminum profile with a maximum outer diameter smaller than the inner diameter of the supporting holes can use this support frame, thus making it suitable for aluminum profiles with various cross-sectional shapes. As can be seen from the above, the support frame of this invention is more flexible in use, capable of accommodating multiple aluminum profiles at once, and applicable to aluminum profiles of different lengths and cross-sectional shapes. Compared to existing technologies, it is not only easier to install but also further improves the efficiency of alkaline washing.

[0016] The hoisting device used in this invention employs a prior art device capable of lifting and transporting a support frame containing aluminum profiles to the top of the alkaline washing tank, controlling the downward movement of the support frame to immerse it in the alkaline washing tank, and controlling the upward movement of the support frame. Those skilled in the art can select its structure and installation method according to actual usage requirements; no specific limitations are imposed. For example, electric hoists, gantry cranes, etc., can be used.

[0017] Preferably, the support frame further includes a limiting grid plate; the limiting grid plate is rectangular, and screws are fixed at the four corners of the lower end face of the limiting grid plate; a rectangular through hole for the hanging ring to pass through is provided in the center of the limiting grid plate; a through hole corresponding to the screw is provided on the perforated plate C, the screw passes through the through hole, and nuts are threaded onto the screws above and below the perforated plate C to fix the limiting grid plate on the perforated plate C.

[0018] The setting of the limiting grating plate restricts the vertical position of the aluminum profile placed on the support frame, preventing the aluminum profile from floating up and not being fully immersed in the alkaline washing solution when the support frame is immersed in the alkaline washing tank; secondly, the position of the support frame immersed in the alkaline washing tank can also be determined by observing the position of the limiting grating plate.

[0019] Preferably, the alkaline washing tank is a cuboid with an open upper surface; a partition plate is fixedly installed at the lower part of the alkaline washing tank; the partition plate is an integral structure, including a left inclined plate, a horizontal connecting plate, and a right inclined plate; a drain pipe is connected to the center of the horizontal connecting plate; the left inclined plate is inclined to the lower right, and the right inclined plate is inclined to the lower left; two stirring impellers are rotatably installed on both the left and right inclined plates; a heating rod is installed below the left and right inclined plates.

[0020] The partition plate is designed to facilitate the placement of a motor driving the agitator impeller and a heating element below it. The shape of the partition plate also facilitates the drainage of liquid from the alkaline washing tank. The agitator impeller is driven by a motor, which is located below the partition plate. During the alkaline washing process, the agitator impeller is heated to a temperature of 50-60℃, allowing the heating element and motor to coexist in the same space at this temperature.

[0021] Preferably, a protective grid plate is fixedly installed above the partition plate; the stirring impeller is located between the protective grid plate and the partition plate.

[0022] The protective grating not only prevents the flow of liquid in the alkaline washing tank but also avoids contact between the support frame and the agitator impeller, thus preventing damage to both the agitator impeller and the support frame and ensuring the smooth operation of the alkaline washing process.

[0023] Preferably, the front and rear sides of the hanging ring are not inserted with aluminum profiles.

[0024] This design prevents aluminum profiles from interfering with the normal operation of the hoisting equipment.

[0025] The hoisting device, stirring impeller, motor, heating rod, etc. in this utility model all use existing technology; the components not limited in this utility model all adopt conventional methods in the field. Those skilled in the art can select their models and installation methods according to actual usage needs, and clearly understand how to install and control them. They will not be described in detail here.

[0026] This utility model achieves the following beneficial effects:

[0027] This utility model has a simple structure and is easy to operate. The alkaline washing device of this utility model can wash multiple aluminum profiles at one time. The aluminum profiles are washed by entering the alkaline washing tank. The surface of the aluminum profiles can fully contact the alkaline washing solution, so the alkaline washing is thorough and efficient. There is no excessive heat loss, which saves costs. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0029] Figure 2 for Figure 1 A sectional view along the EE line;

[0030] Figure 3 for Figure 2 Front view of the central support frame;

[0031] Figure 4 for Figure 3 Top view;

[0032] Figure 5 for Figure 3 Top view of the middle limiting grille plate;

[0033] Figure 6 for Figure 3 Top view of the perforated plate C;

[0034] Figure 7 for Figure 3 Top view of the perforated plate A;

[0035] Figure 8 for Figure 7 A cross-sectional view along the FF line.

[0036] In the diagram: 1. Alkaline washing tank; 2. Lifting device; 3. Threaded connecting rod; 4. Orifice plate A; 5. Orifice plate B; 6. Orifice plate C; 7. Supporting circular hole; 8. Limiting nut; 9. Supporting frustum; 10. Leakage hole; 11. Hanging ring; 12. Hook; 13. Limiting grid plate; 14. Screw; 15. Rectangular through hole; 16. Through hole; 17. Left inclined plate; 18. Horizontal connecting plate; 19. Right inclined plate; 20. Drainage pipe; 21. Agitator impeller; 22. Heating rod; 23. Motor; 24. Protective grid plate. Detailed Implementation

[0037] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention.

[0038] Example 1

[0039] like Figures 1 to 8 As shown, an alkaline washing device for aluminum profiles includes an alkaline washing tank 1, a hoisting device 2, and a support frame;

[0040] The support frame includes four threaded connecting rods 3, perforated plate A4, perforated plate B5, and perforated plate C6; perforated plate A, perforated plate B, and perforated plate C are the same size, are all rectangular plates, and each has multiple support circular holes 7 in the same position.

[0041] In this embodiment, the left and right sides of the hanging ring of the perforated plate C are provided with support circular holes arranged in a matrix. Similarly, the corresponding positions on the perforated plates A and B are also provided with the same support circular holes.

[0042] A threaded connecting rod passes through each of the four corners of the orifice plate A, orifice plate B, and orifice plate C. Limit nuts 8 are threaded onto the threaded connecting rods located above and below the orifice plates A, B, and C, so that the orifice plates A, B, and C are fixed to the threaded connecting rods from bottom to top.

[0043] A support frustum 9 with an open upper end is fixedly installed below the support circular hole of the orifice plate A. The diameter of the upper end of the support frustum is larger than the diameter of the lower end of the support frustum. Drainage holes 10 are provided on the side and bottom of the support frustum. An inverted U-shaped hanging ring 11 is detachably fixed at the center of the upper end of the orifice plate C.

[0044] After the aluminum profile passes through the corresponding support holes of the perforated plate C, perforated plate B, and perforated plate A in sequence, its bottom extends into the interior of the support frustum; the hoisting device is connected to the hanging ring through the hook 12, and the hoisting support frame is immersed in the alkaline washing tank.

[0045] The support frame also includes a limiting grid plate 13; the limiting grid plate is rectangular, and screws 14 are fixed at the four corners of the lower end face of the limiting grid plate; a rectangular through hole 15 for the hanging ring to pass through is provided in the center of the limiting grid plate; a through hole 16 corresponding to the screw is provided on the perforated plate C, the screw passes through the through hole, and nuts are threaded on the screws above and below the perforated plate C to fix the limiting grid plate on the perforated plate C.

[0046] The alkaline washing tank is a rectangular parallelepiped with an open upper surface. A partition plate is fixedly installed at the lower part of the alkaline washing tank. The partition plate is an integral structure, including a left inclined plate 17, a horizontal connecting plate 18, and a right inclined plate 19. A drain pipe 20 is connected to the center of the horizontal connecting plate. The left inclined plate is inclined to the lower right, and the right inclined plate is inclined to the lower left. Two stirring impellers 21 are rotatably installed on both the left and right inclined plates. A heating rod 22 is installed below the left and right inclined plates. The stirring impellers are driven to rotate by a motor 23.

[0047] A protective grid plate 24 is fixedly installed above the partition plate; the stirring impeller is located between the protective grid plate and the partition plate.

[0048] In this embodiment, the spacing between perforated plates A, B, and C is first adjusted according to the length of the aluminum profile to be alkaline washed. The aluminum profile is then inserted into the corresponding support holes, and the upper limit grid plate is installed. Subsequently, the hoisting device is driven to move the support frame above the alkaline washing tank. The support is then driven to move down and immerse itself in the alkaline washing tank. After the required immersion time for alkaline washing is reached, the support frame is lifted from the alkaline washing tank and moved to the next process.

[0049] The support frame is made of a material that does not react with alkaline washing; the hoisting device used is an electric hoist.

[0050] The technical solution of this utility model is not limited to the specific embodiments described above. All technical modifications made based on the technical solution of this utility model fall within the protection scope of this utility model.

Claims

1. An alkaline washing device for aluminum profiles, comprising an alkaline washing tank and a hoisting device; characterized in that: It also includes a support frame; The support frame includes four threaded connecting rods, perforated plate A, perforated plate B, and perforated plate C; perforated plate A, perforated plate B, and perforated plate C are the same size, are all rectangular plates, and each has multiple supporting round holes in the same position; a threaded connecting rod passes through each of the four corners of perforated plate A, perforated plate B, and perforated plate C, and limit nuts are threaded onto the threaded connecting rods located above and below perforated plate A, perforated plate B, and perforated plate C, so that perforated plate A, perforated plate B, and perforated plate C are fixed to the threaded connecting rods from bottom to top; A support frustum with an open upper end is fixedly installed below the support circular hole of the orifice plate A. The diameter of the upper end of the support frustum is larger than the diameter of the lower end of the support frustum. Drainage holes are provided on the side and bottom of the support frustum. An inverted U-shaped hanging ring is detachably fixed at the center of the upper end of the orifice plate C. After the aluminum profile passes through the corresponding support holes of the perforated plate C, perforated plate B, and perforated plate A in sequence, its bottom extends into the interior of the support frustum; the hoisting device is connected to the hanging ring through hooks, and the hoisting support frame is immersed in the alkaline washing tank.

2. The aluminum profile alkaline washing device according to claim 1, characterized in that: The support frame also includes a limiting grid plate; the limiting grid plate is rectangular, and screws are fixed at the four corners of the lower end face of the limiting grid plate; a rectangular through hole for the hanging ring to pass through is provided in the center of the limiting grid plate; a through hole corresponding to the screw is provided on the perforated plate C, the screw passes through the through hole, and nuts are threaded onto the screws above and below the perforated plate C to fix the limiting grid plate on the perforated plate C.

3. The aluminum profile alkaline washing device according to claim 2, characterized in that: The alkaline washing tank is a rectangular parallelepiped with an open upper surface; a partition plate is fixedly installed at the lower part of the alkaline washing tank; the partition plate is an integral structure, including a left inclined plate, a horizontal connecting plate, and a right inclined plate; a drain pipe is connected to the center of the horizontal connecting plate; the left inclined plate is inclined to the lower right, and the right inclined plate is inclined to the lower left; two stirring impellers are rotatably installed on both the left and right inclined plates; heating rods are installed below the left and right inclined plates.

4. The aluminum profile alkaline washing device according to claim 3, characterized in that: A protective grid plate is fixedly installed above the partition plate; the stirring impeller is located between the protective grid plate and the partition plate.

5. The aluminum profile alkaline washing device according to claim 1, characterized in that: The front and rear sides of the hanging ring are not inserted with aluminum profiles.

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