Phosphating equipment for cathodic electrophoretic coating

Abstract

This utility model discloses a phosphating treatment device for cathodic electrophoretic coating, including a processing tank, a storage box connected to one side of the processing tank, a degreasing tank on one side of the storage box, a phosphating tank on one side of the degreasing tank, a washing tank on one side of the phosphating tank, a sliding groove inside the processing tank, and a support frame slidably installed inside the sliding groove. A phosphating treatment mechanism is provided between the processing tank and the storage box. This utility model has the following advantages: by separately opening degreasing, phosphating, and washing tanks in the storage box to store degreasing, phosphating, and washing liquids for phosphating processing, and then using the phosphating treatment mechanism, liquids can be drawn from the storage box and sprayed onto the workpiece during phosphating processing, thereby completing the degreasing, phosphating, and washing processes sequentially in the same station. This avoids the cumbersome operation of frequently transferring workpieces to different tanks in traditional processes, significantly shortening the processing cycle and improving overall production efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of phosphating equipment, specifically to a phosphating equipment for cathodic electrophoretic coating. Background Technology

[0002] In modern industrial production, surface treatment processes for metal workpieces are crucial for improving the corrosion resistance and aesthetics of products. Phosphating, as a key pretreatment step, plays a vital role in enhancing the adhesion and corrosion resistance of subsequent coatings such as cathodic electrophoretic coating. Phosphating is a process that forms a phosphate chemical conversion film on the metal surface through chemical and electrochemical reactions; the resulting phosphate conversion film is commonly referred to as a phosphate film. Its main purpose is to provide a protective layer for the base metal, preventing corrosion to a certain extent.

[0003] Existing phosphating technologies typically involve multiple steps, including degreasing, phosphating, washing, and drying. Each step requires transferring the metal workpiece to a corresponding processing tank. For example, degreasing is first performed in a specialized tank to remove grease and other contaminants from the metal surface. The workpiece is then transferred to a phosphating tank to form a phosphate protective film. Following this, multiple washes are required to remove residual chemicals, and finally, the workpiece is thoroughly dried in a drying oven. This traditional method necessitates frequent transfers of the workpiece from one processing tank to another, which is not only complex and time-consuming but also affects the quality and uniformity of the phosphating film due to potential changes in the processing environment at each step. This results in low overall processing efficiency and inconsistent product quality. Utility Model Content

[0004] In view of the problems in the related technologies, this utility model proposes a phosphating treatment device for cathodic electrophoretic coating to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] Therefore, the specific technical solution adopted by this utility model is as follows:

[0006] A phosphating treatment device for cathodic electrophoretic coating includes a processing tank, a storage box connected to one side of the processing tank, a degreasing tank on one side of the storage box, a phosphating tank on one side of the degreasing tank, a water washing tank on one side of the phosphating tank, a sliding groove inside the processing tank, a support frame slidably installed inside the sliding groove, a plurality of support rollers rotatably installed inside the support frame, and a phosphating treatment mechanism between the processing tank and the storage box.

[0007] Furthermore, in order to extract the processing liquid from the degreasing tank, phosphating tank and washing tank respectively during phosphating, the phosphating treatment mechanism includes a four-way pipe connected to the top of the storage tank. One end of the main pipe of the four-way pipe is connected to an extraction pump, the output end of the extraction pump is connected to a delivery pipe, the end of the delivery pipe is equipped with a spray head, and each branch pipe of the four-way pipe is equipped with a solenoid valve.

[0008] Furthermore, in order to dry the workpieces after phosphating, a hot air blower is installed on one side of the top of the storage box, and the output end of the hot air blower is connected to an exhaust pipe.

[0009] Furthermore, in order to facilitate the placement of workpieces onto the support frame and support rollers inside the processing tank, a loading gate is installed on one side of the processing tank via a hinge.

[0010] Furthermore, in order to discharge the waste liquid in the processing tank, a discharge pipe is connected to one side of the bottom of the processing tank, and a discharge valve is installed on the surface of the discharge pipe.

[0011] Furthermore, in order to control the various electrical components within the device, a multi-control switch is installed on one side of the surface of the processing tank.

[0012] Furthermore, in order to heat the phosphating liquid in the phosphating tank, heating resistors are installed on both sides of the inside of the phosphating tank.

[0013] Furthermore, in order to enable the processing tank and storage box to move and support each other, casters are installed on both sides of the bottom of the processing tank and storage box.

[0014] The beneficial effects of this utility model are as follows: By integrating the degreasing tank, phosphating tank, and washing tank into the same storage tank, the centralized storage and management of multiple treatment solutions are realized, which not only reduces the equipment footprint but also optimizes the production line layout and improves space utilization, which is conducive to realizing a compact and modular phosphating treatment system; by spraying the workpiece through the phosphating treatment mechanism, the degreasing, phosphating, washing, and drying processes can be completed sequentially in the processing tank, avoiding the cumbersome operation of frequently transferring workpieces to different tanks in the traditional process, significantly shortening the processing cycle and improving the overall production efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1This is a schematic diagram of the surface structure of a phosphating treatment device for cathodic electrophoretic coating according to an embodiment of the present utility model;

[0017] Figure 2 This is a side view of a phosphating treatment apparatus for cathodic electrophoretic coating according to an embodiment of the present utility model;

[0018] Figure 3 This is a rear view of a phosphating treatment apparatus for cathodic electrophoretic coating according to an embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the processing tank in a phosphating treatment device for cathodic electrophoretic coating according to an embodiment of the present utility model;

[0020] Figure 5 This is an internal cross-sectional view of the storage tank in a cathodic electrophoretic coating phosphating treatment device according to an embodiment of the present utility model.

[0021] In the picture:

[0022] 1. Processing tank; 2. Storage bin; 3. Degreasing tank; 4. Phosphating tank; 5. Washing tank; 6. Sliding tank; 7. Support frame; 8. Support roller; 9. Phosphating treatment mechanism; 901. Four-way pipe; 902. Extraction pump; 903. Conveying pipe; 904. Spray head; 905. Solenoid valve; 906. Hot air blower; 907. Exhaust pipe; 10. Loading gate; 11. Discharge pipe; 12. Discharge valve; 13. Multi-control switch; 14. Heating resistor; 15. Casters. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] According to an embodiment of the present invention, a phosphating treatment device for cathodic electrophoretic coating is provided.

[0025] like Figures 1-5As shown, a phosphating treatment device for cathodic electrophoretic coating according to an embodiment of the present invention includes a processing tank 1 for placing workpieces requiring phosphating treatment inside it for convenient subsequent phosphating treatment; a storage tank 2 is connected to one side of the processing tank 1, and a degreasing tank 3 is opened on one side of the storage tank 2 for storing a weakly alkaline degreasing agent; a phosphating tank 4 is opened on one side of the degreasing tank 3 for storing phosphating liquid; a water washing tank 5 is opened on one side of the phosphating tank 4 for storing cleaning water; a sliding groove 6 is opened inside the processing tank 1, and a support frame 7 is slidably installed inside the sliding groove 6. A plurality of support rollers 8 are rotatably installed inside the support frame 7 for placing workpieces requiring processing on the support rollers 8, and during phosphating treatment, waste liquid can be discharged to the bottom of the support frame 7 through the gaps between the support rollers 8; a phosphating treatment mechanism 9 is provided between the processing tank 1 and the storage tank 2 for extracting various liquids in the storage tank 2 and performing degreasing, phosphating and water washing on the workpieces in the processing tank 1 in sections.

[0026] like Figures 1-5 As shown, the phosphating treatment mechanism 9 includes a four-way pipe 901 connected to the top of the storage tank 2. Three branch pipes on the four-way pipe 901 are connected to the degreasing tank 3, the phosphating tank 4, and the washing tank 5, respectively. One end of the main pipe of the four-way pipe 901 is connected to a pump 902, and the output end of the pump 902 is connected to a conveying pipe 903. A spray head 904 is installed at the end of the conveying pipe 903. Each branch pipe of the four-way pipe 901 is equipped with a solenoid valve 905. The solenoid valves 905 control the opening and closing of each branch pipe of the four-way pipe 901. The pump 902 draws various treatment solutions from the storage tank 2 into the conveying pipe 903, which are then sprayed out by the spray head 904 at the end of the conveying pipe 903 to spray the workpieces in the processing tank 1, achieving degreasing, phosphating, and washing in the phosphating process. A hot air blower 906 is installed on one side of the top of the storage tank 2. The output end of the hot air blower 906 is connected to... A ventilation duct 907 is connected, and hot air generated by a hot air blower 906 is blown onto the ventilation duct 907, and then blown onto the workpiece in the processing tank 1 from the end of the ventilation duct 907, so as to achieve rapid drying of the workpiece after phosphating treatment; a loading door 10 is installed on one side of the processing tank 1 by hinge, which is used to open and put the workpiece to be processed onto the support roller 8 in the processing tank 1; a discharge pipe 11 is connected to the bottom side of the processing tank 1, and a discharge valve 12 is installed on the surface of the discharge pipe 11 for convenient discharge of waste liquid falling into the processing tank 1; a multi-control switch 13 is installed on one side of the surface of the processing tank 1 for controlling the switching of various electrical components in the device; heating resistors 14 are installed on both sides inside the phosphating tank 4 for heating the phosphating liquid in the phosphating tank 4, thereby improving the phosphating reaction efficiency; universal wheels 15 are rotatably installed on both sides of the bottom of the processing tank 1 and the storage box 2 for convenient movement of the whole equipment.

[0027] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0028] In actual use, by opening the loading gate 10 on one side of the processing tank 1, the metal workpiece to be phosphated is placed between multiple support rollers 8 on the support frame 7 inside the processing tank 1. After the workpiece is placed, the loading gate 10 is closed, and the equipment is started using the multi-control switch 13. First, the solenoid valve 905 on the corresponding branch pipe of the degreasing tank 3 is opened using the multi-control switch 13, the other branch pipes are closed, and the extraction pump 902 is started. The weak alkaline degreasing agent in the degreasing tank 3 in the storage tank 2 is drawn in through the branch pipe of the four-way pipe 901 and transported to the spray head 904 through the conveying pipe 903. The surface of the workpiece in the processing tank 1 is evenly sprayed to remove grease, dirt and other impurities, completing the degreasing treatment. After the spraying is completed, the solenoid valve 905 is closed, and the waste liquid flows into the bottom of the support frame 7 through the gap between the support rollers 8 and is discharged from the bottom of the processing tank 1. After the degreasing process, the solenoid valve 905 corresponding to the water washing tank 5 is opened, and cleaning water is drawn to spray and clean the residual phosphate solution on the surface of the workpiece to ensure that the surface is clean and free of residue. Subsequently, the solenoid valve 905 on the corresponding branch pipe of phosphating tank 4 is opened, and the extraction pump 902 draws out the phosphating solution from phosphating tank 4. This solution is then delivered to the spray head 904 via the delivery pipe 903, spraying the degreased workpiece to form a dense and uniform phosphating film on the metal workpiece surface, providing a good adhesion base for subsequent cathodic electrophoretic coating. After phosphating is completed, the solenoid valve 905 on this branch pipe is closed, and the solenoid valve 905 on the corresponding water washing tank 5 is opened. Cleaning water is drawn to spray and clean the remaining phosphating solution on the workpiece surface, ensuring a clean and residue-free surface to prevent affecting the performance of subsequent coatings. After cleaning, the hot air blower 906 on top of the storage tank 2 is started. Hot air is delivered to the processing tank 1 via the exhaust pipe 907 to dry the sprayed workpiece, accelerating moisture evaporation and achieving rapid drying, thus completing the phosphating treatment of the metal workpiece surface.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A phosphating treatment device for cathodic electrophoretic coating, characterized in that, The equipment includes a processing tank (1), a storage box (2) connected to one side of the processing tank (1), a degreasing tank (3) opened on one side of the storage box (2), a phosphating tank (4) opened on one side of the degreasing tank (3), a water washing tank (5) opened on one side of the phosphating tank (4), a sliding groove (6) opened inside the processing tank (1), a support frame (7) slidably installed inside the sliding groove (6), a number of support rollers (8) rotatably installed inside the support frame (7), and a phosphating treatment mechanism (9) is provided between the processing tank (1) and the storage box (2).

2. The phosphating treatment equipment for cathodic electrophoretic coating according to claim 1, characterized in that, The phosphating treatment unit (9) includes a four-way pipe (901) connected to the top of the storage tank (2). One end of the main pipe of the four-way pipe (901) is connected to a pump (902). The output end of the pump (902) is connected to a delivery pipe (903). A spray head (904) is installed at the end of the delivery pipe (903). Solenoid valves (905) are installed on each branch of the four-way pipe (901).

3. The phosphating treatment equipment for cathodic electrophoretic coating according to claim 2, characterized in that, A hot air blower (906) is installed on one side of the top of the storage box (2), and an exhaust pipe (907) is connected to the output end of the hot air blower (906).

4. The phosphating treatment equipment for cathodic electrophoretic coating according to claim 1, characterized in that, A loading door (10) is mounted on one side of the processing tank (1) via a hinge.

5. The phosphating treatment equipment for cathodic electrophoretic coating according to claim 1, characterized in that, A discharge pipe (11) is connected to one side of the bottom of the processing tank (1), and a discharge valve (12) is installed on the surface of the discharge pipe (11).

6. The phosphating treatment equipment for cathodic electrophoretic coating according to claim 1, characterized in that, A multi-control switch (13) is installed on one side of the surface of the processing groove (1).

7. The phosphating treatment equipment for cathodic electrophoretic coating according to claim 1, characterized in that, Heating resistors (14) are installed on both sides of the inside of the phosphating tank (4).

8. The phosphating treatment equipment for cathodic electrophoretic coating according to claim 1, characterized in that, The bottom sides of the processing tank (1) and the storage box (2) are equipped with casters (15).

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