Electroplating acid tank tank structure for steel cord production

Abstract

The utility model relates to the technical field of steel cord production, and concretely relates to a plating acid tank body structure for steel cord production, comprising: a tank body, the tank body is equipped with a first baffle and a second baffle, the first baffle is below the second baffle, a first space is formed below the first baffle, a second space is formed between the first baffle and the second baffle, the second baffle is a hole plate, an overflow area is formed above the second baffle. The utility model discloses a double-pump redundancy design of one for one, and the overflow hole height of the overflow pipe is arranged above the highest height of the overflow area, and this kind of structural design can realize instantaneous seamless switching of the standby pump, and the switching does not need to install a check valve, can not only ensure the absolute continuous stability of plating liquid level and flow, but also significantly improve the reliability, safety and efficiency of steel cord plating production, while greatly reducing the complexity, maintenance cost and downtime risk of the system.

Description

Technical Field

[0001] This utility model relates to the field of steel cord production technology, and more specifically to the structure of an electroplating acid tank for steel cord production. Background Technology

[0002] In radial tires and various rubber-reinforced products, steel cord is the core skeleton material, responsible for withstanding enormous pressure and impact. To ensure the long-term stable service of the steel cord in rubber and prevent corrosion that could lead to tire blowouts or product failure, a uniform and dense brass plating layer must be applied to the surface of the steel wire. The electroplating process is the core step in achieving this functional layer.

[0003] Steel cord production is a typical continuous assembly line operation. A single steel cord passes through a series of electroplating tanks at a speed of several meters per second or even higher. If a tank stops due to a malfunction, the entire production line will stop, resulting in huge output and economic losses. The liquid level in the electroplating tank must be continuously and stably higher than the position where the steel cord passes through the tank. If the liquid level drops, the steel cord section exposed to the air will not be able to obtain a coating, resulting in incomplete plating.

[0004] Therefore, in the production process of steel cord electroplating, which has extremely high requirements for continuity, stability and safety, designing a tank liquid level maintenance system that is both absolutely reliable and simple and efficient is the key to ensuring the quality and safety of the final product, improving production efficiency and reducing operating costs. Utility Model Content

[0005] To address the technical problems existing in the electroplating acid tank body of the prior art, this utility model proposes an electroplating acid tank body structure for steel cord production, comprising:

[0006] The tank body is provided with a first partition and a second partition. The first partition is located below the second partition, forming a first space below the first partition and a second space between the first partition and the second partition. The second partition is a perforated plate, and an overflow area is formed above the second partition.

[0007] At least two overflow pipes pass through the first partition from the top of the tank and extend into the first space, so that the water inlet at the bottom of the overflow pipe is connected to the first space;

[0008] Multiple drive motors are provided, each of which is connected to the top of one of the overflow pipes. The output end of the drive motor is connected to an impeller that extends to the water inlet at the bottom of the overflow pipe. The side wall of the overflow pipe is provided with an overflow hole.

[0009] The controller is connected to the drive motor and controls multiple drive motors to operate in a one-in-one standby or rotating manner. At least one drive motor is in working state during the entire electroplating operation cycle. The drive motor is used to drive the impeller to rotate, so that the electroplating solution is drawn into the water inlet at the bottom of the overflow pipe and sequentially poured into the second space and the overflow area through the overflow hole, and then flows back to the first space from the overflow area.

[0010] The lowest liquid level in the overflow hole is higher than the highest liquid level in the overflow area, so that each overflow pipe has at least the highest liquid level of electroplating solution.

[0011] Preferably, each of the drive motors is fixedly connected to the top of the overflow pipe via a flange.

[0012] Preferably, the second space is divided into a first region and a second region, the height of the first region is greater than the height of the second region, and both the first region and the second region are located above the first partition.

[0013] Preferably, the first region is located outside the overflow hole of the overflow pipe, and the electroplating solution flowing out of the overflow hole enters the first region before flowing into the second region.

[0014] Preferably, the overflow hole is oriented from the first region toward the second region.

[0015] Preferably, an overflow shielding part is provided above the second partition, so that the electroplating liquid in the overflow area overflows when it passes the overflow shielding part and reaches the highest liquid level.

[0016] Preferably, the axis of the drive motor coincides with the axis of the overflow pipe.

[0017] Preferably, the controller includes a fault detection unit and a switching execution unit. The fault detection unit is used to monitor the current or flow rate of the operating pump, and the switching execution unit is configured to immediately cut off the power supply to the operating drive motor and simultaneously power on the backup drive motor when a fault is detected.

[0018] Compared with the prior art, the advantages of this utility model are:

[0019] This invention employs a dual-pump redundancy design with one pump in use and one in standby. Simultaneously, the overflow orifice of the overflow pipe is positioned above the highest point of the overflow area. This structural design enables instantaneous and seamless switching of the standby pump without the need for a check valve. It not only ensures absolute continuity and stability of the electroplating liquid level and flow but also significantly improves the reliability, safety, and efficiency of steel cord electroplating production. Furthermore, it drastically reduces system complexity, maintenance costs, and downtime risks. Attached Figure Description

[0020] The accompanying drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component shown in the various figures may be denoted by the same reference numeral. For clarity, not every component is labeled in each figure. Embodiments of various aspects of the present invention will now be described by way of example and with reference to the accompanying drawings, wherein:

[0021] Figure 1 This is a schematic diagram of the electroplating acid tank structure for steel cord production shown in this utility model.

[0022] Figure 2 This is a schematic diagram of the flow direction of the electroplating solution in the tank shown in this utility model. Detailed Implementation

[0023] To better understand the technical content of this utility model, specific embodiments are provided below in conjunction with the accompanying drawings.

[0024] Combination Figure 1 and Figure 2 As shown, this utility model proposes an electroplating acid tank structure for steel cord production, including a tank body 10, at least two overflow pipes 20 and multiple drive motors 30.

[0025] Combination Figure 1 and Figure 2 As shown, the tank 10 is provided with a first partition 11 and a second partition 12, with the first partition 11 located below the second partition 12.

[0026] Specifically, multiple different spaces are formed in the tank 10 through the separation of the first partition 11 and the second partition 12. A first space 101 is formed below the first partition 11, and a second space is formed between the first partition 11 and the second partition 12. The second partition 12 is an orifice plate, and an overflow area 104 is formed above the second partition 12.

[0027] Thus, by dividing the tank 10, it is beneficial to form different areas, so that the electroplating solution can flow to different positions in an orderly manner. In particular, it can maintain a constant liquid level above the second partition 12 to form a continuously flowing electroplating solution, and the steel cord can achieve copper plating in the overflow area 104.

[0028] Furthermore, in order to maintain the continuous flow of the electroplating solution, the overflow pipe 20 is redundantly provided in this application, including at least two overflow pipes 20. Figure 1 (Two are shown). Each overflow pipe 20 extends from the top of the tank 10 through the first partition 11 and into the first space 101, so that the water inlet 201 at the bottom of the overflow pipe 20 is connected to the first space 101.

[0029] Specifically, the top of the overflow pipe 20 extends directly from the shell above the tank 10 downward through the first partition 11 into the first space 101.

[0030] Furthermore, each overflow pipe 20 corresponds to one drive motor 30, that is, each drive motor 30 is connected to the top of an overflow pipe 20. The output end of the drive motor 30 is connected to an impeller 31 that extends to the water inlet 201 at the bottom of the overflow pipe 20. The side wall of the overflow pipe 20 is provided with an overflow hole 202.

[0031] Thus, when the drive motor 30 is used to drive the impeller 31 to rotate, the electroplating solution can be drawn into the bottom inlet 201 of the overflow pipe 20 and poured into the second space and the overflow area 104 in sequence through the overflow hole 202, and then flowed back to the first space 101 from the overflow area 104.

[0032] Combination Figure 2 As shown, the electroplating solution enters the overflow pipe 20 from the bottom inlet 201. Under the lifting and pressurizing effect of the impeller 31, it overflows from the overflow hole 202 of the overflow pipe 20 and flows into the second space. Then it passes through the second partition 12 (perforated plate) and enters the overflow area 104. By setting the rotation speed of the impeller 31, the flow speed of the electroplating solution in the overflow area 104 can be maintained.

[0033] The lowest liquid level of overflow hole 202 is higher than the highest liquid level 105 of overflow area 104.

[0034] Thus, based on the above analysis of the electroplating solution flow direction, when the lowest liquid level of the overflow hole 202 is higher than the highest liquid level 105 of the overflow area 104, according to the principle of communicating vessels, the liquid level in each overflow pipe 20 will always be consistent with the liquid level in the overflow area 104, that is, each overflow pipe 20 has at least the electroplating solution maintained at the highest liquid level 105.

[0035] In this way, this design creates a permanent liquid-sealed environment for the impellers 31 of all drive motors 30. Even if a drive motor 30 is in a standby state, its impeller 31 is always immersed in the still liquid. There is no problem of pump chamber emptying or needing to be refilled. This avoids the possibility of electroplating solution flowing back into the first space 101 through the stopped pump. Thus, without the need to install any mechanical check valve, the risk of backflow is eliminated from the physical structure, ensuring that the standby pump can achieve instantaneous start-up and seamless switching.

[0036] Specifically, in combination Figure 1 and Figure 2 As shown, the second space is divided into a first region 102 and a second region 103. The height of the first region 102 is greater than the height of the second region 103. Both the first region 102 and the second region 103 are located above the first partition 11.

[0037] In an optional implementation, the first region 102 is located outside the overflow hole 202 of the overflow pipe 20. The electroplating solution flowing out of the overflow hole 202 enters the first region 102 before flowing into the second region 103.

[0038] This creates a localized, stepped buffer space. The electroplating solution flowing out at high speed from the overflow hole 202 first enters the larger first region 102, where its kinetic energy and flow are fully buffered and diffused, effectively reducing the direct impact of the fluid on the second baffle 12. This makes the electroplating solution flow more evenly and smoothly as it passes through the holes of the second baffle 12, providing an extremely stable fluid environment for the steel cord being electroplated above, which helps to form a uniform coating.

[0039] Preferably, the overflow hole 202 is oriented from the first region 102 toward the second region 103.

[0040] In this way, the flow path of the electroplating solution can be actively guided, and the fluid kinetic energy can be used to drive the electroplating solution to flow naturally from the first region 102 to the second region 103, thereby optimizing the overall flow field distribution in the tank, avoiding the generation of stagnant water zones or eddies in local areas of the electroplating solution, and further ensuring the uniformity of the composition and temperature of the electroplating solution in the entire overflow area 104.

[0041] In a specific embodiment, an overflow shielding part 13 is provided above the second partition 12, so that the electroplating liquid in the overflow area 104 overflows when it passes the overflow shielding part 13 and reaches the highest liquid level 105.

[0042] Furthermore, the controller is connected to the drive motor 30 and controls multiple drive motors 30 to operate in a one-in-one standby or rotating manner, with at least one drive motor 30 in operation throughout the entire electroplating cycle.

[0043] In an optional embodiment, the controller includes a fault detection unit and a switching execution unit. The fault detection unit is used to monitor the current or flow rate of the operating pump, and the switching execution unit is configured to immediately cut off the power supply to the operating drive motor 30 and simultaneously power on the standby drive motor 30 when a fault is detected in the operating drive motor 30.

[0044] The fault detection unit monitors the operating current or associated flow signal of the drive motor 30 in real time and compares it with a preset normal threshold range. Once an abnormal drop in current (indicating pump idling or jamming) or a surge (indicating overload) is detected, or a significant decrease in flow is detected, the switching execution unit will immediately cut off the power to the faulty motor within tens to hundreds of milliseconds and simultaneously power on the backup drive motor 30.

[0045] Since the impeller 31 of the standby pump is always in a liquid-sealed standby state, there is no need to overcome static friction and priming process during startup, and it can achieve near-instantaneous full-pressure output. The entire switching process is rapid and smooth, and the tank liquid level and flow field will not fluctuate significantly, thereby strictly ensuring the absolute continuity of electroplating production and completely avoiding the shutdown of the entire line and product scrap due to pump failure.

[0046] Furthermore, each drive motor 30 is securely connected to the top of the overflow pipe 20 via a flange 21. This flange connection provides robust mechanical support, ensuring minimal vibration of the drive motor 30 during operation, while this modular design also facilitates quick disassembly and maintenance of the motor.

[0047] Preferably, the axis of the drive motor 30 coincides with the axis of the overflow pipe 20.

[0048] In this way, the coaxial design ensures that the transmission shaft and impeller 31 rotate stably at the center of the overflow pipe 20, which greatly reduces uneven wear and vibration, thereby improving pumping efficiency and service life.

[0049] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. A structure for an electroplating acid tank used in the production of steel cord, characterized in that, include: The tank (10) is provided with a first partition (11) and a second partition (12). The first partition (11) is located below the second partition (12), forming a first space (101) below the first partition (11) and a second space between the first partition (11) and the second partition (12). The second partition (12) is a perforated plate, and an overflow area (104) is formed above the second partition (12). At least two overflow pipes (20) pass through the first partition (11) from the top of the tank (10) and extend into the first space (101), so that the water inlet (201) at the bottom of the overflow pipe (20) is connected to the first space (101); Multiple drive motors (30) are connected to the top of one of the overflow pipes (20). The output end of the drive motor (30) is connected to an impeller (31) extending to the bottom inlet (201) of the overflow pipe (20). The side wall of the overflow pipe (20) is provided with an overflow hole (202). The controller is connected to the drive motor (30) and controls multiple drive motors (30) to operate in a one-in-one standby or rotating manner. At least one drive motor (30) is in working state during the entire electroplating operation cycle. The drive motor (30) is used to drive the impeller (31) to rotate, so that the electroplating liquid is drawn into the bottom inlet (201) of the overflow pipe (20) and poured into the second space and the overflow area (104) in sequence through the overflow hole (202), and then flowed back to the first space (101) from the overflow area (104). The lowest liquid level of the overflow hole (202) is higher than the highest liquid level (105) of the overflow area (104), so that each overflow pipe (20) has at least the electroplating solution maintained at the highest liquid level (105).

2. The electroplating acid tank structure for steel cord production according to claim 1, characterized in that, Each of the drive motors (30) is fixedly connected to the top of the overflow pipe (20) via a flange (21).

3. The electroplating acid tank structure for steel cord production according to claim 1, characterized in that, The second space is divided into a first region (102) and a second region (103). The height of the first region (102) is greater than the height of the second region (103). Both the first region (102) and the second region (103) are located above the first partition (11).

4. The electroplating acid tank structure for steel cord production according to claim 3, characterized in that, The first region (102) is located outside the overflow hole (202) of the overflow pipe (20). The electroplating liquid flowing out of the overflow hole (202) enters the first region (102) before flowing into the second region (103).

5. The electroplating acid tank structure for steel cord production according to claim 3, characterized in that, The overflow hole (202) is oriented from the first region (102) toward the second region (103).

6. The electroplating acid tank structure for steel cord production according to claim 1, characterized in that, An overflow shielding part (13) is provided above the second partition (12), so that the electroplating liquid in the overflow area (104) overflows when it passes the overflow shielding part (13) and reaches the highest liquid level (105).

7. The electroplating acid tank structure for steel cord production according to claim 1, characterized in that, The axis of the drive motor (30) coincides with the axis of the overflow pipe (20).

8. The electroplating acid tank structure for steel cord production according to claim 1, characterized in that, The controller includes a fault detection unit and a switching execution unit. The fault detection unit is used to monitor the current or flow rate of the running pump. The switching execution unit is configured to immediately cut off the power supply to the running drive motor (30) and simultaneously power on the backup drive motor (30) when a fault is detected.

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