Automatic air and solution discharging device for electroplating of deep blind hole part
By designing an exhaust drainage device including a float valve and auxiliary anode, the problem of air bags and liquid discharge during the electroplating of deep blind hole parts is solved, and the automatic discharge of air bags and uniform coverage of the membrane layer is achieved, which is suitable for large products.
Patent Information
- Application Number
- CN202422474141.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-14
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-10-14
AI Technical Summary
Deep blind hole parts are prone to problems such as air bags and liquid discharge during electroplating, especially for large products, which are difficult to ensure the quality of the film layer.
An exhaust drainage device including a float valve, a wire adapter, a four-way connector, a direct head and a 45° elbow is designed. The tank fluid inlet and outlet are controlled through the float valve, the tank hydraulic compressed air is discharged, and the auxiliary anode is combined to realize automatic exhaust and solution discharge.
It realizes the air bag problem solving for deep blind hole parts and ensures the quality of the membrane layer. It is simple to operate and compact in structure, and is suitable for large products.
Smart Images
Figure CN223226206U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of process equipment, in particular to an automatic exhaust and solution discharge device for electroplating deep blind hole parts. Background Art
[0002] The most important function of electroplating is corrosion protection. Different coatings are required depending on the usage conditions and performance requirements. Zinc-nickel alloy coatings for cylindrical parts with deep or large blind holes offer the following benefits: First, excellent corrosion resistance; Second, excellent mechanical properties, with plating maintaining the steel's yield strength, tensile strength, and elongation, and good plasticity; Third, excellent brazing properties, ensuring ease of welding under a wide range of conditions and free of whisker defects; Fourth, the coating offers low stress, making it suitable for electroplating on high-strength steel and a viable alternative to cadmium plating. However, plating parts with deep blind holes is prone to air pockets and a lack of coating. If the closed end is at the bottom, the product becomes heavier after entering the bath, making it difficult for the solution to drain out of the bath. If the closed end is at the top, air can push against the product, preventing it from entering the bath and creating large air pockets. This is especially true for large parts, requiring the use of an auxiliary anode. This makes it difficult to maintain film quality, impacting subsequent coating performance. Summary of the Invention
[0003] In order to solve the above technical problems, the utility model provides an automatic exhaust and solution draining device for electroplating deep blind hole parts with a simple structure and convenient operation.
[0004] The technical solution of the utility model for solving the above technical problems is: an automatic exhaust and solution drainage device for electroplating deep blind hole parts, including a tooling frame and an exhaust and drainage device, the exhaust and drainage device including a float valve, a threaded joint, a four-way joint, a straight joint and a 45° elbow, the float valve is connected to the lower port of the four-way joint through the threaded joint, the left port and the right port of the four-way joint are both connected to one end of a connecting steel pipe through a horizontally arranged straight joint, the other end of the connecting steel pipe is connected to one end of a 45° elbow, the other ends of the two 45° elbows are respectively fixedly connected to a vertically arranged left steel pipe and a vertically arranged right steel pipe, the upper port of the four-way joint is fixedly connected to a vertically arranged middle steel pipe, and the left steel pipe, the right steel pipe and the middle steel pipe are all fixedly arranged on the tooling frame through an insulating plate.
[0005] The above-mentioned automatic exhaust and solution discharge device for electroplating deep blind hole parts is a device in which the deep blind hole parts are sleeved on the left steel pipe and the right steel pipe.
[0006] In the above-mentioned automatic exhaust and solution draining device for electroplating deep blind hole parts, the middle steel pipe is connected to the plating tank anode through an electric wire to serve as an auxiliary anode.
[0007] The beneficial effects of the utility model are as follows: the utility model utilizes the principle of controlling the inflow and outflow of tank liquid by a float valve; when the product begins to enter the tank, the tank liquid pushes the float valve to the upper end, and the solution cannot enter the exhaust and drainage device; the solution enters the deep blind hole parts and continuously compresses the air, and the air is discharged along the exhaust and drainage device; when the product exits the tank, the float valve falls, and the solution is discharged along the exhaust and drainage device; when it needs to be used as an auxiliary anode, the middle steel pipe is connected to the anode of the plating tank; the whole device has a simple structure and is easy to operate, and solves the problem of air pockets and difficult drainage in deep blind hole parts. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 It is a three-dimensional diagram of the present utility model.
[0009] Figure 2 It is the main view of the utility model.
[0010] Figure 3 It is a structural diagram of the exhaust and drainage device.
[0011] Figure 4 Schematic diagram of the structure of a 45° elbow.
[0012] Figure 5 It is a structural diagram of the thread joint.
[0013] Figure 6 It is a structural diagram of the float valve.
[0014] Figure 7 Schematic diagram of the structure of the insulation board.
[0015] Figure 8 It is a structural diagram of a four-way joint.
[0016] Figure 9 This is a structural diagram of the direct connector. DETAILED DESCRIPTION
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0018] like Figures 1-9As shown, an automatic exhaust and solution drainage device for electroplating deep blind hole parts includes a tooling frame 1 and an exhaust and drainage device 2. The exhaust and drainage device 2 includes a float valve 2-1, a threaded joint 2-2, a four-way joint 2-3, a straight joint 2-4 and a 45° elbow 2-5. The float valve 2-1 is connected to the lower port of the four-way joint 2-3 through the threaded joint 2-2. The left port and the right port of the four-way joint 2-3 are both connected to one end of a connecting steel pipe 2-6 through a horizontally arranged straight joint 2-4. The other end of the connecting steel pipe 2-6 is connected to one end of a 45° elbow 2-5. The other ends of the two 45° elbows 2-5 are respectively fixedly connected to a vertically arranged left steel pipe 5 and a vertically arranged right steel pipe 6. The upper port of the four-way joint 2-3 is fixedly connected to a vertically arranged middle steel pipe 7. The left steel pipe 5, the right steel pipe 6 and the middle steel pipe 7 are all fixedly arranged on the tooling frame 1 through an insulating plate 4. The deep blind hole part 3 is sleeved on the left steel pipe 5 and the right steel pipe 6. The middle steel pipe 7 is connected to the plating tank anode through an electric wire and serves as an auxiliary anode.
[0019] The installation process of the present invention is as follows: first weld a suitable tooling frame 1, and then make the exhaust and drainage device 2: the float valve 2-1 is connected to the lower port of the four-way joint 2-3 through the threaded joint 2-2, and the left and right ports of the four-way joint 2-3 and the 45° elbow 2-5 are connected by a straight joint 2-4, and the 45° elbow 2-5 is then connected to the left steel pipe 5 and the right steel pipe 6; the middle steel pipe 7 is directly connected to the upper port of the four-way joint 2-3; then the automatic exhaust and drainage device 2 is fixed to the tooling frame 1 through the insulating plate 4, and the deep blind hole parts 3 are fixed to the left steel pipe 5 and the right steel pipe 6 on the left and right sides of the exhaust and drainage device 2 during production.
[0020] During the specific operation of the utility model, the whole set of automatic exhaust and solution drainage device for electroplating deep blind hole parts 3 is moved to the upper hanger, and the deep blind hole parts 3 are placed on the left steel pipe 5 and the right steel pipe 6 on the left and right sides of the exhaust and drainage device 2, ensuring that the left steel pipe 5 and the right steel pipe 6 are respectively in the middle position of the inner cavity of the deep blind hole parts 3. After the deep blind hole parts 3 are placed, they are moved to the traveling crane. When entering the plating tank, the middle steel pipe 7 of the exhaust and drainage device 2 is connected to the plating tank anode with an electric wire as an auxiliary anode. When entering the tank liquid, the float valve 2-1 is pushed up and closed by the liquid, and the solution cannot enter through the exhaust and drainage device 2. The liquid continuously enters the deep blind hole parts 3 and then squeezes the gas in its inner cavity, and the gas is discharged along the exhaust and drainage device 2. When leaving the tank, the float valve 2-1 is pushed down and opened by the liquid, and the solution flows out along the deep blind hole parts 3 and the exhaust and drainage device 2. The use of the utility model solves the problem of product air bags, and the auxiliary anode also ensures that the deep holes can be plated with a film layer.
Claims
1. An automatic exhaust and solution discharge device for electroplating deep blind hole parts, characterized by: It includes a tooling frame and an exhaust and drainage device. The exhaust and drainage device includes a float valve, a threaded joint, a four-way joint, a straight joint and a 45° elbow. The float valve is connected to the lower port of the four-way joint through the threaded joint. The left port and the right port of the four-way joint are both connected to one end of a connecting steel pipe through a horizontally arranged straight joint. The other end of the connecting steel pipe is connected to one end of a 45° elbow. The other ends of the two 45° elbows are respectively fixedly connected to a vertically arranged left steel pipe and a vertically arranged right steel pipe. The upper port of the four-way joint is fixedly connected to a vertically arranged middle steel pipe. The left steel pipe, the right steel pipe and the middle steel pipe are all fixed on the tooling frame through insulating plates.
2. The automatic exhaust and solution discharge device for electroplating deep blind hole parts according to claim 1 is characterized in that: The deep blind hole parts are mounted on the left and right steel pipes.
3. The automatic exhaust and solution discharge device for electroplating deep blind hole parts according to claim 1 is characterized in that: The middle steel pipe is connected to the plating tank anode through an electric wire and serves as an auxiliary anode.