Steel cord electroplating copper plating current balance regulation and control rectifier cabinet device

Abstract

The utility model relates to a steel cord electroplating copper plating current balance regulation and control rectifier cabinet device which comprises a plurality of rectifier cabinets, and the number of the rectifier cabinets is in one-to-one correspondence with the number of A-face overflow grooves and the number of B-face overflow grooves. A rectification circuit is arranged in the rectification cabinet, one end of the rectification circuit is connected with an AC power supply, and the other end is electrically connected with the anode and the cathode; a control module is further arranged in the rectifier cabinet, the control module is electrically connected with the rectifier circuit, the control module is further electrically connected with a current detection module and a communication module, the control module is connected with a switch through the communication module, and the switch is in communication connection with a PLC. According to the utility model, the plurality of rectifier cabinets are arranged in one-to-one correspondence with the overflow grooves in number, so that the problem of non-uniform current distribution is avoided, in addition, the current is detected, communication with the PLC is realized through the switch, the problem that the plurality of rectifier cabinets are inconvenient to operate is avoided, and the copper plating quality is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of electroplated copper wires, and particularly relates to a rectifier cabinet device for evenly regulating and controlling the electroplating copper current of steel cord. Background Art

[0002] Steel cord is a material for making tire skeletons. It is made of high-quality high-carbon steel and has brass plated on its surface. The electroplating process is used to achieve copper plating on the steel cord. During operation, the steel cord (cathode) is placed in the A-side overflow tank or the B-side overflow tank, and copper plating solution and copper grains (anodes) are placed in the A-side overflow tank and the B-side overflow tank. After power is applied between the cathode and the anode, copper is deposited on the steel cord.

[0003] Since there are many steel cords to be electroplated, multiple A-side overflow tanks and B-side overflow tanks are arranged on the production line. One rectifier cabinet is arranged for multiple A-side overflow tanks, and one rectifier cabinet is arranged for multiple B-side overflow tanks. The function of the rectifier cabinet is to convert alternating current into direct current and then supply power to the cathode and the anode. Using one rectifier cabinet for multiple overflow tanks results in uneven current distribution among the overflow tanks, and the uneven current distribution will affect the quality of copper plating. Summary of the Invention

[0004] In order to solve the problem of uneven current distribution caused by setting one rectifier cabinet for multiple existing overflow tanks, the utility model provides a rectifier cabinet device for evenly regulating and controlling the electroplating copper current of steel cord. Multiple rectifier cabinets are set to correspond one by one to the number of overflow tanks, avoiding the problem of uneven current distribution. In addition, the current is detected and communicated with the PLC controller through a switch, avoiding the problem of inconvenient operation of multiple rectifier cabinets and improving the quality of copper plating.

[0005] To achieve the above object, the utility model provides a rectifier cabinet device for evenly regulating and controlling the electroplating copper current of steel cord, including rectifier cabinets, multiple A-side overflow tanks and multiple B-side overflow tanks. Anodes and cathodes are arranged in each of the multiple A-side overflow tanks and B-side overflow tanks. The multiple anodes and cathodes are electrically connected to the rectifier cabinets. The number of the rectifier cabinets is multiple, and the number of the rectifier cabinets corresponds one by one to the number of the A-side overflow tanks and the B-side overflow tanks;

[0006] A rectifier circuit is arranged in the rectifier cabinet. One end of the rectifier circuit is connected to an AC power supply, and the other end is electrically connected to the anode and the cathode respectively;

[0007] A control module is further arranged in the rectifier cabinet. The control module is electrically connected to the rectifier circuit, and is also electrically connected to a current detection module and a communication module. The control module is connected to a switch through the communication module, and the switch is communicatively connected to a PLC controller.

[0008] Further, the control module includes a controller and a MOS driving circuit. The MOS driving circuit includes an MOS transistor. The G pole of the MOS transistor is connected to the output end of the controller. The output end of the MOS driving circuit is connected to a relay. The coil of the relay is connected to the output end of the MOS driving circuit, and the normally open contact of the relay is connected to the anode and the cathode.

[0009] The setting of the MOS driving circuit and the relay facilitates the control of the on-off of the anode and the cathode, and the use of the embedded system has a simple circuit structure.

[0010] Further, the current detection module includes a current detection circuit. The current detection circuit includes a sampling resistor and an amplifier. The sampling resistor is connected in series with the anode and the cathode.

[0011] The input end of the amplifier is connected to the sampling resistor, and the output end of the amplifier is connected to the controller.

[0012] The setting of the current detection circuit facilitates the monitoring of the current value in the overflow tank, providing a hardware basis for the PLC controller to control the current value of the overflow tank in a negative feedback manner.

[0013] Further, the communication module includes a LAN module. The controller is communicatively connected to the LAN module, and the controller is communicatively connected to a switch through the LAN module.

[0014] The formation of local area network communication through the LAN module facilitates the communication between the PLC controller and multiple control modules.

[0015] Further, the rectifier cabinet is a square structure with a hollow interior, and terminal blocks are arranged on the side wall of the rectifier cabinet. The rectifier cabinet has a simple structure and protects the internal hardware circuit.

[0016] Through the above technical solutions, the beneficial effects of the present utility model are as follows:

[0017] The present utility model effectively solves the problem that the current distribution in each overflow tank is uneven due to the use of one rectifier cabinet for multiple overflow tanks. A plurality of rectifier cabinets are provided, and the number of rectifier cabinets corresponds one-to-one to the number of overflow tanks on the A side and the B side. A rectifying circuit is arranged in the rectifier cabinet. One end of the rectifying circuit is connected to an AC power supply, and the other end is electrically connected to the anode and the cathode respectively. A control module is also arranged in the rectifier cabinet, and the control module is electrically connected to a current detection module. The single-to-single power supply is adopted to ensure that the current values in each overflow tank are consistent and ensure the effect of the electroplating operation. In addition, the PLC controller communicates with the control module through the switch and the communication module. By communicating with the control module, the PLC controller enables the control module to use the PWM control method to adjust the output of the rectifying circuit so that the current value of a single overflow tank is adjustable and stable. Description of the Drawings

[0018] Figure 1 This is one of the circuit diagrams of a rectifier cabinet device for regulating the current balance in copper electroplating of steel cord in the present utility model;

[0019] Figure 2 This is the second circuit diagram of a rectifier cabinet device for regulating the current balance in copper electroplating of steel cord in the present utility model;

[0020] Figure 3 This is the structural schematic diagram of a rectifier cabinet device for regulating the current balance in copper electroplating of steel cord in the present utility model.

[0021] Reference numerals in the attached drawings: 1 is the rectifier cabinet, 2 is the anode, 3 is the cathode, 4 is the rectifier circuit, 5 is the detection module, 6 is the communication module, 7 is the switch, 8 is the PLC controller, 9 is the controller, 10 is the MOS drive circuit, and 11 is the relay. Specific embodiments

[0022] The present utility model will be further described below in conjunction with the attached drawings and specific embodiments:

[0023] Embodiment 1

[0024] As Figures 1 to 3 shown, a rectifier cabinet device for regulating the current balance in copper electroplating of steel cord includes a rectifier cabinet 1, a plurality of A-side overflow tanks and a plurality of B-side overflow tanks. Anodes 2 and cathodes 3 are arranged in each of the plurality of A-side overflow tanks and B-side overflow tanks. The plurality of anodes 2 and cathodes 3 are electrically connected to the rectifier cabinet 1. The number of rectifier cabinets 1 is multiple, and the number of rectifier cabinets 1 corresponds one-to-one to the number of A-side overflow tanks and B-side overflow tanks;

[0025] A rectifier circuit 4 is arranged in the rectifier cabinet 1. One end of the rectifier circuit 4 is connected to an AC power supply, and the other end is electrically connected to the anode 2 and the cathode 3 respectively;

[0026] A control module is further arranged in the rectifier cabinet 1. The control module is electrically connected to the rectifier circuit 4, and is also electrically connected to a current detection module 5 and a communication module 6. The control module is connected to a switch 7 through the communication module 6, and the switch 7 is communicatively connected to a PLC controller 8.

[0027] The control module includes a controller 9 and a MOS drive circuit 10. The MOS drive circuit 10 includes a MOS transistor. The G pole of the MOS transistor is connected to the output end of the controller 9. The output end of the MOS drive circuit 10 is connected to a relay 11. The coil of the relay 11 is connected to the output end of the MOS drive circuit 10, and the normally open contact of the relay 11 is connected to the anode 2 and the cathode 3.

[0028] The current detection module 5 includes a current detection circuit, and the current detection circuit includes a sampling resistor and an amplifier. The sampling resistor is connected in series with the anode 2 and the cathode 3;

[0029] The input end of the amplifier is connected to the sampling resistor, and the output end of the amplifier is connected to the controller 9.

[0030] The communication module 6 includes a LAN module. The controller 9 is communicatively connected to the LAN module, and the controller 9 is communicatively connected to the switch 7 through the LAN module.

[0031] The rectifier cabinet 1 has a square structure with a hollow interior, and wiring terminals are provided on the side wall of the rectifier cabinet 1.

[0032] During operation, multiple A-side overflow tanks and B-side overflow tanks work simultaneously. The PLC controller 8 issues start commands to multiple control modules at the same time. In this embodiment, the controller 9 selects an MCU chip, specifically an STM32 single-chip microcomputer. The rectifier circuit 4 includes a rectifier bridge. The controller 9 adjusts the output power of the rectifier circuit 4 through PWM control to make the output current value match the current value required by the overflow tank. The controller 9 turns on the MOS drive circuit 10, so that the coil of the relay 11 is energized, and the normally open contact of the relay 11 closes, and the anode 2 and the cathode 3 are energized for the steel cord electroplating operation.

[0033] The current detection circuit monitors the current values of the A-side overflow tank and the B-side overflow tank in real time, and transmits the current values to the controller 9. The controller 9 converts the analog signal into a digital signal, and the controller 9 sends the digital signal to the PLC controller 8 through the communication module 6 and the switch 7.

[0034] When the operation ends, the PLC controller 8 issues shutdown commands to multiple control modules at the same time. The controller 9 turns off the MOS drive circuit 10, so that the coil of the relay 11 loses power, and the normally open contact of the relay 11 opens. The anode 2 and the cathode 3 are de-energized.

[0035] The above embodiments are only the preferred embodiments of the present invention, and do not limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made according to the structure, features, and principles described in the scope of the present invention patent should be included in the scope of the patent application of the present invention.

Claims

1. A current balancing and regulating rectifier cabinet device for copper plating of steel cord, comprising a rectifier cabinet (1), a plurality of A-side overflow troughs and a plurality of B-side overflow troughs, wherein anodes (2) and cathodes (3) are arranged in the plurality of A-side overflow troughs and B-side overflow troughs, and the plurality of anodes (2) and cathodes (3) are electrically connected to the rectifier cabinet (1), characterized in that: The number of the rectifier cabinets (1) is multiple, and the number of the rectifier cabinets (1) corresponds one-to-one to the number of the overflow grooves on the A side and the overflow grooves on the B side; A rectifier circuit (4) is arranged in the rectifier cabinet (1), one end of the rectifier circuit (4) is connected to an AC power source, and the other end is electrically connected to the anode (2) and the cathode (3) respectively; A control module is also provided in the rectifier cabinet (1), the control module being electrically connected to the rectifier circuit (4), the control module being electrically connected to the current detection module (5) and the communication module (6), the control module being connected to a switch (7) via the communication module (6), and the switch (7) being communicatively connected to a PLC controller (8).

2. A current balancing and regulating rectifier cabinet device for copper plating of steel cord according to claim 1, characterized in that: The control module comprises a controller (9) and a MOS drive circuit (10); the MOS drive circuit (10) comprises a MOS tube; the G pole of the MOS tube is connected to the output end of the controller (9); the output end of the MOS drive circuit (10) is connected to a relay (11); the coil of the relay (11) is connected to the output end of the MOS drive circuit (10); and the normally open contact of the relay (11) is connected to an anode (2) and a cathode (3).

3. A current balancing and regulating rectifier cabinet device for copper plating of steel cord according to claim 2, characterized in that: The current detection module (5) comprises a current detection circuit, the current detection circuit comprises a sampling resistor and an amplifier, the sampling resistor is connected in series with the anode (2) and the cathode (3); The input end of the amplifier is connected to the sampling resistor, and the output end of the amplifier is connected to the controller (9).

4. A current balancing and regulating rectifier cabinet device for copper plating of steel cord according to claim 2, characterized in that: The communication module (6) comprises a LAN module, the controller (9) is communicatively connected to the LAN module, and the controller (9) is communicatively connected to the switch (7) via the LAN module.

5. The current balancing and regulating rectifier cabinet device for copper plating of steel cord according to claim 1 is characterized in that: The rectifier cabinet (1) is a square structure with a hollow interior, and a connection terminal is arranged on a side wall of the rectifier cabinet (1).

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