A high-temperature resistant spring phosphating treatment device

Abstract

This utility model discloses a high-temperature resistant spring phosphating treatment device, belonging to the field of spring processing technology. It includes a base and a phosphating box vertically mounted on top of the base. The phosphating box contains a suspension frame that separates and suspends the springs. A rotating mechanism controlling the horizontal rotation of the suspension frame is located at the bottom of the phosphating box. A circulating water pump is installed at one end of the top of the base, with its input end connected to the top of the phosphating box. A filter box is located at the top of the base near the circulating water pump, with its output end connected to the interior of the filter box. A filter bag is installed inside the filter box. This utility model, through the suspension frame composed of inserts, crossbars, hooks, and rings, can separate the springs to prevent collisions. Combined with the rotating mechanism composed of a housing, inlet pipe, drain pipe, shaft, impeller, tray, and rectangular insert, it can control the movement of the springs and the phosphating solution, improving the phosphating effect.

Description

Technical Field

[0001] This utility model relates to a phosphating treatment device, and more particularly to a high-temperature resistant spring phosphating treatment device, belonging to the field of spring processing technology. Background Technology

[0002] Phosphating is a common process to improve the corrosion resistance and surface adhesion of springs. In order to ensure that phosphating is carried out without dead corners during the phosphating process, an existing technology is used, such as the spring surface phosphating device disclosed in the patent application number 202321666641.1. The device controls the phosphating liquid and the spring shaking during the phosphating process by vibration, so as to improve the phosphating effect.

[0003] The above-mentioned applications still have shortcomings:

[0004] During vibration, high-frequency collisions occur between springs or between springs and the tank wall, which can cause scratches, deformation, or even peeling of the coating on the spring surface, affecting the uniformity of the phosphating film. At the same time, vibration can also generate a large amount of foam. The foam adhering to the spring surface can hinder the contact between the phosphating solution and the metal, forming an "air film" that results in local areas without film or with a thin film layer. In addition, Fe³⁺ will hydrolyze to generate Fe(OH)3 during the phosphating process. The Fe(OH)3 precipitate exists in the phosphating solution in the form of suspended or flocculent particles, which can easily be adsorbed on the spring surface, forming mechanical inclusions that affect the appearance and the smoothness and adhesion of subsequent coatings (such as painting and electroplating).

[0005] To address this issue, a high-temperature resistant spring phosphating treatment device was designed. Utility Model Content

[0006] The main objective of this invention is to provide a high-temperature resistant spring phosphating treatment device to solve the problems mentioned in the background art.

[0007] The objective of this utility model can be achieved by adopting the following technical solution:

[0008] A high-temperature resistant spring phosphating treatment device includes a base and a phosphating box vertically installed on top of the base;

[0009] The phosphating box is equipped with a suspension frame that separates the springs for the suspension.

[0010] The bottom of the phosphating box is equipped with a rotating mechanism to control the horizontal rotation of the suspension bracket;

[0011] A circulating water pump is installed at one end of the top of the base. The input end of the circulating water pump is connected to the top of the phosphating tank. A filter box is located at the top of the base near the circulating water pump. The output end of the circulating water pump is connected to the inside of the filter box. A filter bag is installed inside the filter box. The other end of the filter box is connected to the inside of the phosphating tank.

[0012] Preferably, the rotating mechanism includes a housing, an inlet pipe, a drain pipe, a shaft, an impeller, a tray, and a rectangular insert. The housing is fixed to the inner bottom of the phosphating tank. An inlet pipe is provided between one end of the housing and the filter box, and a drain pipe is provided at the other end of the housing. A shaft is vertically and rotatably mounted inside the housing. An impeller is installed at the bottom end of the shaft. The top end of the shaft extends to the outside of the housing. A tray is fixed to the top end of the shaft. A rectangular insert is vertically fixed at the middle position of the top of the tray.

[0013] Preferably, the suspension bracket includes a tube, a crossbar, and hooks. The tube has a rectangular groove inside, and the rectangular tube is inserted into the rectangular groove. The tube has crossbars evenly arranged along its side circumference, and the crossbars have hooks evenly arranged at their bottoms.

[0014] Preferably, a lifting ring is fixed at the middle position of the top of the insert.

[0015] Preferably, a hollow disc is horizontally installed at the bottom of the phosphating box, the hollow disc is connected to the top of the drain pipe, spray holes are evenly opened on the top of the hollow disc, and a shaft passes through the hollow disc and is rotatably connected to the hollow disc.

[0016] Preferably, a transparent observation window is vertically provided on the outside of the phosphating tank, and a liquid level line is provided on the transparent observation window.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model uses a suspension frame consisting of a tube, crossbar, hook, and ring to separate the springs and prevent collisions. Combined with a rotating mechanism consisting of a housing, inlet pipe, drain pipe, shaft, impeller, tray, and rectangular tube, it can control the movement of the springs and phosphating solution, thereby improving the phosphating effect.

[0019] 2. This utility model uses a circulating water pump installed on the outside of the phosphating tank, along with a filter box and filter bag, to circulate and filter the phosphating solution during use, preventing Fe(OH)3 from precipitating and adsorbing on the surface of the spring. In addition, the circulating water flow drives the rotating mechanism, making it more energy-efficient and practical. Attached Figure Description

[0020] Figure 1 This is a front sectional view of the present invention;

[0021] Figure 2 This is the front view of the present invention;

[0022] Figure 3 This is a diagram of the suspension frame of this utility model;

[0023] Figure 4This is a diagram of the rotating mechanism of this utility model.

[0024] In the diagram: 1. Base; 2. Phosphating box;

[0025] 3. Suspension bracket; 301. Insert tube; 302. Crossbar; 303. Hook; 304. Hanging ring;

[0026] 4. Rotating mechanism; 401. Housing; 402. Inlet pipe; 403. Drain pipe; 404. Shaft; 405. Impeller; 406. Tray; 407. Rectangular insert rod;

[0027] 5. Circulating water pump; 6. Filter box; 7. Filter bag; 8. Hollow disc; 9. Spray nozzle. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0029] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0030] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] Example 1

[0034] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this embodiment proposes a high-temperature resistant spring phosphating treatment device, including a base 1 and a phosphating box 2 vertically arranged on the top of the base 1.

[0035] The phosphating box 2 is equipped with a suspension frame 3 for spring-separated suspension;

[0036] The bottom of the phosphating box 2 is equipped with a rotating mechanism 4 that controls the horizontal rotation of the suspension frame 3;

[0037] A circulating water pump 5 is installed at one end of the top of the base 1;

[0038] The circulating water pump 5 is a centrifugal pump with a power of 0.5-1.5kW and a flow rate of 5-10 liters / minute to ensure that the phosphating solution can be circulated and filtered in a timely manner, while avoiding excessive flow rate that could cause the phosphating solution to splash.

[0039] The input end of the circulating water pump 5 is connected to the top of the phosphating tank 2. A filter box 6 is provided at the top of the base 1 near the circulating water pump 5. The output end of the circulating water pump 5 is connected to the inside of the filter box 6. A filter bag 7 is installed inside the filter box 6. The other end of the filter box 6 is connected to the inside of the phosphating tank 2.

[0040] The filter bag 7 is made of polypropylene or nylon, with a filtration accuracy of 5-10 microns. Depending on the degree of contamination of the phosphating solution, the filter bag 7 is replaced every 500-1000 springs processed, or when the filtration pressure increases significantly.

[0041] During the phosphating process, the springs are first placed on the suspension frame 3 to separate them. Then, the suspension frame 3 is hoisted into the phosphating tank 2 using an electric hoist and placed on top of the rotating mechanism 4. During phosphating, the circulating water pump 5 is started to transport the phosphating solution from top to bottom. When passing through the filter box 6, the Fe(OH)3 precipitate in the liquid is intercepted and stored inside the filter bag 7. Then, the clean phosphating solution re-enters the phosphating tank 2 to form a cycle. In addition, during phosphating, the rotating mechanism 4 controls the suspension frame 3 to rotate at a uniform speed, increasing the flow rate of the phosphating solution and controlling the swing of the springs to ensure that the solution flows forcibly between the spring gaps, thereby improving the effect of the rollers.

[0042] Example 2

[0043] The solution in Example 1 will be further described below with reference to its specific working method.

[0044] like Figure 1 and Figure 4As shown, in a preferred embodiment, based on the above method, the rotating mechanism 4 further includes a housing 401, an inlet pipe 402, a drain pipe 403, a shaft 404, an impeller 405, a tray 406, and a rectangular insert rod 407. The housing 401 is fixed to the inner bottom of the phosphating box 2. One end of the housing 401 is provided with an inlet pipe 402 between it and the filter box 6. The other end of the housing 401 is provided with a drain pipe 403. The shaft 404 is vertically rotatably mounted inside the housing 401. The impeller 405 is mounted at the bottom end of the shaft 404. The top end of the shaft 404 extends to the outside of the housing 401. The tray 406 is fixed at the top end of the shaft 404. The rectangular insert rod 407 is vertically fixed at the middle position of the top of the tray 406.

[0045] During the circulation of the phosphating solution, the filtered phosphating solution enters the interior of the housing 401 through the water inlet pipe 402. Then, the water flow drives the impeller 405 to rotate and is discharged from the drain pipe 403. When the impeller 405 rotates, it controls the rotation of the tray 406, which in turn drives the suspension frame 3 on the top of the tray 406 to rotate horizontally. The speed of the impeller 405 can be adjusted by the flow rate of the phosphating solution, usually controlled at 10-30 revolutions per minute, to ensure that the suspension frame 3 rotates smoothly and that the phosphating solution is in full contact with the spring.

[0046] like Figure 3 As shown, in a preferred embodiment, based on the above method, the suspension frame 3 further includes a tube 301, a crossbar 302 and a hook 303. The tube 301 has a rectangular groove inside, and the rectangular tube 407 is inserted into the rectangular groove. The crossbar 302 is evenly arranged along the circumferential side of the tube 301, and the hook 303 is evenly arranged at the bottom of the crossbar 302.

[0047] The distance between the hooks 303 and the bottom of the crossbar 302 is set to 5-10 cm. The specific value needs to be adjusted according to the diameter and length of the spring to ensure that adjacent springs do not collide. The length of the crossbar 302 can be determined according to the inner diameter of the phosphating box 2 so that the springs will not contact the inner wall of the phosphating box 2 when the suspension bracket 3 rotates.

[0048] The spring is vertically suspended using hook 303, preventing adjacent springs from sticking together. When hoisting it into the phosphating box 2, the rectangular groove at the bottom of the insert 301 is aligned with the rectangular insert rod 407, and then it is lowered vertically to limit the insertion of the insert 301.

[0049] like Figure 3 As shown, in a preferred embodiment, based on the above method, a lifting ring 304 is further fixed at the middle position of the top of the insert 301. The use of the lifting ring 304 facilitates suspension installation. The lifting ring 304 is made of stainless steel and its load-bearing capacity must be greater than the weight of the suspension frame when fully loaded.

[0050] like Figure 1 As shown, in a preferred embodiment, based on the above method, a hollow disc 8 is horizontally arranged at the bottom of the phosphating box 2. The diameter of the hollow disc 8 is adapted to the inner diameter of the phosphating box 2. The hollow disc 8 is connected to the top of the drain pipe 403. The top of the hollow disc 8 is evenly provided with 20-30 spray holes 9. The diameter of the spray holes 9 is 2-3 mm, so that the phosphating liquid can be sprayed out evenly and the phosphating effect can be improved. The shaft 404 passes through the hollow disc 8 and is rotatably connected to the hollow disc 8. The phosphating liquid discharged from the inside of the shell 401 enters the interior of the hollow disc 8 and is then evenly and vertically sprayed out from the spray holes 9.

[0051] like Figure 2 As shown, in a preferred embodiment, based on the above method, a transparent observation window is vertically provided on the outside of the phosphating tank 2, and a liquid level line is provided on the transparent observation window. The use of the transparent observation window can facilitate the observation of the liquid level inside the phosphating tank 2.

[0052] Example 3

[0053] The solutions in Embodiments 1 and 2 will be further described below with reference to their specific working methods.

[0054] During the phosphating process of the springs, the springs are vertically rotated using hook 303 to prevent adjacent springs from sticking together. When the springs are hoisted into the phosphating box 2, the rectangular groove at the bottom of the insert 301 is aligned with the rectangular insert 407, and then the springs are lowered vertically to limit the insertion of the insert 301. The phosphating solution is higher than the height of the suspension frame 3. During phosphating, the circulating water pump 5 is started to transport the phosphating solution from top to bottom. When the solution passes through the filter box 6, the Fe(OH)3 precipitate in the liquid is intercepted and stored inside the filter bag 7. Then the clean phosphating solution enters the interior of the housing 401 through the water inlet pipe 402. The water flow drives the impeller 405 to rotate and then discharges it from the drain pipe 403. When the impeller 405 rotates, it controls the rotation of the tray 406, which in turn drives the suspension frame 3 on the top of the tray 406 to rotate horizontally. The phosphating solution discharged from the drain pipe 403 enters the interior of the hollow disc 8 and is then sprayed out evenly and vertically from the spray hole 9.

[0055] The above description is only a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope disclosed by the present utility model, based on the technical solution and concept of the present utility model, shall fall within the protection scope of the present utility model.

Claims

1. A high-temperature resistant spring phosphating treatment device, comprising a base (1) and a phosphating box (2) vertically disposed on the top of the base (1); Its features are: The phosphating box (2) is equipped with a suspension frame (3) for spring-separated suspension. The bottom of the phosphating box (2) is equipped with a rotating mechanism (4) to control the horizontal rotation of the suspension bracket (3); A circulating water pump (5) is installed at one end of the top of the base (1). The input end of the circulating water pump (5) is connected to the top of the phosphating tank (2). A filter box (6) is provided at one end of the top of the base (1) near the circulating water pump (5). The output end of the circulating water pump (5) is connected to the inside of the filter box (6). A filter bag (7) is installed inside the filter box (6). The other end of the filter box (6) is connected to the inside of the phosphating tank (2).

2. The high-temperature resistant spring phosphating treatment device according to claim 1, characterized in that: The rotating mechanism (4) includes a housing (401), an inlet pipe (402), a drain pipe (403), a shaft (404), an impeller (405), a tray (406), and a rectangular insert (407). The housing (401) is fixed to the inner bottom of the phosphating box (2). An inlet pipe (402) is provided between one end of the housing (401) and the filter box (6). A drain pipe (403) is provided at the other end of the housing (401). A shaft (404) is vertically rotatably mounted inside the housing (401). An impeller (405) is mounted at the bottom end of the shaft (404). The top end of the shaft (404) extends to the outside of the housing (401). A tray (406) is fixed at the top end of the shaft (404). A rectangular insert (407) is vertically fixed at the middle position of the top of the tray (406).

3. The high-temperature resistant spring phosphating treatment device according to claim 2, characterized in that: The suspension bracket (3) includes a tube (301), a crossbar (302) and a hook (303). The tube (301) has a rectangular groove inside, and a rectangular rod (407) is inserted into the rectangular groove. The side of the tube (301) is evenly provided with crossbars (302) along the circumference, and the bottom of the crossbars (302) is evenly provided with hooks (303).

4. The high-temperature resistant spring phosphating treatment device according to claim 3, characterized in that: A lifting ring (304) is fixed at the middle position of the top of the insert (301).

5. The high-temperature resistant spring phosphating treatment device according to claim 2, characterized in that: A hollow plate (8) is horizontally installed at the bottom of the phosphating box (2). The hollow plate (8) is connected to the top of the drain pipe (403). Spray holes (9) are evenly opened on the top of the hollow plate (8). The shaft (404) passes through the hollow plate (8) and is rotatably connected to the hollow plate (8).

6. The high-temperature resistant spring phosphating treatment device according to claim 1, characterized in that: A transparent observation window is vertically provided on the outside of the phosphating tank (2), and a liquid level line is provided on the transparent observation window.

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