Pretreatment equipment for electrophoretic coating

Abstract

The utility model discloses pretreatment equipment for electrophoretic coating, and relates to the technical field of pretreatment for electrophoretic coating, the pretreatment equipment for electrophoretic coating comprises a phosphating pool and a sediment cleaner, and the sediment cleaner is movably connected to the bottom of the phosphating pool; the sediment cleaner comprises a shaft rod movably connected in the phosphating pool, the outer side of the shaft rod is spirally and integrally provided with an auger blade, and the auger blade is provided with a plurality of through holes; a driving motor is fixed at the end part of the phosphating pool, and an output shaft of the driving motor penetrates through the phosphating pool and is in transmission connection with the end part of the shaft rod; according to the utility model, the driving motor drives the auger blade to rotate at the bottom of the phosphating pool through the shaft lever, and the spirally arranged auger blade can drive sediment to move to one side of the phosphating pool, so that the sediment on the inner side of the phosphating pool is automatically cleaned, and the influence of the sediment on phosphating liquid is reduced.

Description

Technical Field

[0001] The utility model specifically relates to the technical field of electrophoretic coating pretreatment, and specifically is a pretreatment device for electrophoretic coating. Background Technique

[0002] Before electrophoretic coating, pretreatment such as degreasing, water washing, phosphating and passivation is required. Among them, phosphating pretreatment is an important link in the pretreatment process of the electrophoretic production line. Phosphating is a process of forming a phosphate chemical conversion film through chemical and electrochemical reactions, and the formed phosphate conversion film is called a phosphating film.

[0003] However, some components in the phosphating solution will form insoluble compounds during the reaction, thus precipitating to form sediment, and the sediment in the phosphating solution will adhere to the surface of the workpiece, easily resulting in uneven phosphating on the surface of the workpiece and affecting the uniformity of the phosphating reaction. Therefore, it is necessary to clean the sediment in the phosphating solution in time;

[0004] At present, most phosphating solutions need to be cleaned manually, and the phosphating solution contains various chemical substances, such as phosphoric acid, metal salts, etc. These components have strong corrosiveness, and it is easy to splash the phosphating solution on the skin during manual cleaning of the sediment, causing corrosion and affecting safety. Content of the Utility Model

[0005] The purpose of the utility model is to provide a pretreatment device for electrophoretic coating, which automatically cleans the sediment generated during phosphating through a sediment cleaner arranged at the bottom of the phosphating tank, and the partition plate divides the phosphating tank into two parts to block the sediment and reduce the influence of the sediment on the phosphating of the phosphating solution. And when cleaning, the phosphating solution can be drained first to improve the safety during manual cleaning. To solve the technical problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A pretreatment device for electrophoretic coating, including a phosphating tank and a sediment cleaner, and the sediment cleaner is movably connected to the bottom of the phosphating tank;

[0008] The sediment cleaner includes a shaft rod movably connected in the phosphating tank, and a screw blade is integrally arranged in a spiral shape on the outer side of the shaft rod, and a number of through holes are opened in the screw blade.

[0009] As a further technical solution of the utility model, a driving motor is fixed at the end of the phosphating tank, and the output shaft of the driving motor penetrates through the phosphating tank and is in transmission connection with the end of the shaft rod.

[0010] As a further technical solution of the utility model, a partition plate is also integrally arranged on the inner side surface of the phosphating tank, and the shaft rod and the screw blade respectively penetrate through the bottom of the partition plate.

[0011] As a further technical solution of the present utility model, a liquid replacement pipe is fixed on one side of the bottom of the phosphating tank, and the liquid replacement pipe is communicated with the inner side of the phosphating tank.

[0012] As a further technical solution of the present utility model, a support is also fixedly connected to the bottom of the phosphating tank.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] In the present utility model, the driving motor drives the auger blades to rotate at the bottom of the phosphating tank through the shaft rod. The spirally arranged auger blades can drive the sediment to move to one side of the phosphating tank, thereby automatically cleaning the sediment inside the phosphating tank and reducing the influence of the sediment on the phosphating solution.

[0015] In the present utility model, the inner side of the phosphating tank is divided by the partition plate, and the sediment cleaner is used to move the sediment from one side of the partition plate to the other side, so as to block the cleaned sediment and further reduce the influence of the sediment on the phosphating of the phosphating solution.

[0016] In the present utility model, since through holes are provided on the auger blades, it can ensure that the phosphating solutions on both sides of the partition plate are communicated, and when cleaning the sediment on the side of the partition plate, it does not affect the normal use of the phosphating solution on the other side of the partition plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model in use state.

[0018] Figure 2 is in the present utility model Figure 1 right side structural diagram.

[0019] Figure 3 is in the present utility model Figure 1 top view.

[0020] Figure 4 is in the present utility model Figure 3 partial enlarged schematic diagram.

[0021] Figure 5 is in the present utility model Figure 1 front view.

[0022] Figure 6 is in the present utility model Figure 5 sectional view.

[0023] In the figure:

[0024] Phosphating tank - 1, support - 2, partition plate - 3, liquid replacement pipe - 4, sediment cleaner - 5, shaft rod - 51, auger blade - 52, through hole - 53, driving motor - 6. Detailed implementation mode

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0026] Please refer to Figures 1-6 , the embodiments of the present invention provide a pretreatment device for electrophoretic coating, including a phosphating tank 1 and a sediment cleaner 5, and the sediment cleaner 5 is movably connected to the bottom of the phosphating tank 1;

[0027] The sediment cleaner 5 includes a shaft rod 51 movably connected in the phosphating tank 1. A screw blade 52 is integrally provided in a spiral shape on the outer side of the shaft rod 51, and a plurality of through holes 53 are provided in the screw blade 52.

[0028] In this embodiment, a driving motor 6 is fixed at the end of the phosphating tank 1, and the output shaft of the driving motor 6 penetrates through the phosphating tank 1 and is in transmission connection with the end of the shaft rod 51.

[0029] In this embodiment, a partition plate 3 is also integrally provided on the inner side of the phosphating tank 1, and the shaft rod 51 and the screw blade 52 respectively penetrate through the bottom of the partition plate 3.

[0030] In this embodiment, a liquid exchange pipe 4 is fixed on one side of the bottom of the phosphating tank 1, and the liquid exchange pipe 4 is in communication with the inside of the phosphating tank 1.

[0031] In this embodiment, a support 2 is also fixedly connected to the bottom of the phosphating tank 1.

[0032] By adopting the above technical solution, the driving motor 6 drives the shaft rod 51 and the screw blade 52 to rotate. The spirally arranged screw blade 52 will drive the sediment deposited at the bottom of the phosphating tank 1 to move to one side of the phosphating tank 1, moving the sediment from one side of the partition plate 3 to the other side of the partition plate 3, reducing the influence of the sediment on the phosphating of the workpiece.

[0033] In this embodiment, a sealing ring is provided between the phosphating tank 1 and the driving motor 6, and the sealing ring is fixedly connected to the phosphating tank 1.

[0034] In this embodiment, the lower part of the phosphating tank 1 is arranged in a conical shape, and an arc-shaped collecting groove is integrally provided at the bottom of the phosphating tank 1.

[0035] In this embodiment, the shaft rod 51 and the screw blade 52 are respectively arranged inside the collecting groove.

[0036] The working principle of the present utility model is as follows: The phosphating solution is placed inside the phosphating tank 1. The workpiece is placed into the phosphating tank 1 through a moving device, and the workpiece is immersed in the phosphating solution for phosphating. The generated sediment precipitates to the bottom of the phosphating tank 1. After the phosphating, when the workpiece is taken out, the driving motor 6 drives the auger blade 52 to rotate through the shaft rod 51. When the spiral auger blade 52 rotates, it can drive the sediment to move to one side of the phosphating tank 1. After passing through the partition plate 3, it moves to the side of the phosphating tank 1. Due to the through holes 53 opened in the auger blade 52, the normal circulation of the phosphating solution on both sides of the partition plate 3 can be ensured, and the influence of the sediment generated during phosphating on the phosphating solution can be reduced. When cleaning the internal sediment, the phosphating solution can be discharged first through the liquid change pipe 4, and then the internal sediment can be cleaned to improve safety.

[0037] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present utility model. Any reference signs in the claims should not be construed as limiting the claimed rights.

[0038] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A pretreatment device for electrophoretic coating, characterized in that: It comprises a phosphating tank (1) and a sediment cleaner (5), wherein the sediment cleaner (5) is movably connected to the bottom of the phosphating tank (1); The sludge cleaner (5) comprises a shaft (51) movably connected in the phosphating tank (1), the outer side of the shaft (51) is integrally provided with a spiral auger blade (52), and the auger blade (52) is provided with a plurality of through holes (53).

2. The electrophoretic coating pretreatment equipment according to claim 1, characterized in that: A driving motor (6) is fixed to the end of the phosphating tank (1), and an output shaft of the driving motor (6) passes through the phosphating tank (1) and is drivingly connected to the end of the shaft (51).

3. The electrophoretic coating pretreatment equipment according to claim 1, characterized in that: The inner side of the phosphating pool (1) is also integrally provided with a partition (3), and the shaft (51) and the auger blade (52) respectively penetrate the bottom of the partition (3).

4. The electrophoretic coating pretreatment equipment according to claim 2, characterized in that: A liquid exchange pipe (4) is fixed to one side of the bottom of the phosphating tank (1), and the liquid exchange pipe (4) and the inner side of the phosphating tank (1) are connected to each other.

5. The electrophoretic coating pretreatment equipment according to claim 2, characterized in that: The bottom of the phosphating pool (1) is also fixedly connected to a bracket (2).

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