Electro-plastic Shape Control Roller System Based on Transverse Partitioning and Independent Control

Abstract

An electro-plastic shape control roller system based on transverse partitioning and independent control is provided. The electro-plastic shape control roller system includes a shape control roller mandrel, conductive copper rings, insulating ceramic rings, a shock-absorbing rubber sleeve, an insulating ceramic roller sleeve, and conductive rotary joints, etc. This system constructs a transversely partitioned electro-plastic shape control roller by alternately arranging the conductive copper rings and the insulating ceramic rings. During operation, a strip is wrapped at a certain angle above the electro-plastic shape control roller to ensure a tight contact between the strip and the conductive copper rings. According to the principle of minimum resistance in the conductive copper ring-strip-adjacent conductive copper ring pattern, the electro-plastic shape control roller system controls the on/off of each set of independent conductive copper rings through the external control circuit.

Claims

1-10. (canceled)

11. An electro-plastic shape control roller system based on transverse partitioning and independent control, comprising a shape control roller mandrel, wherein two ends of the shape control roller mandrel are respectively inserted into bearing seats for fixation; a bearing is provided between each of the two ends of the shape control roller mandrel and the bearing seat; conductive rotary joints are respectively fitted on outer walls of the two ends of the shape control roller mandrel, and a plurality of conductive copper rings are fitted on an outer wall of a middle of the shape control roller mandrel; insulating ceramic rings are arranged between adjacent conductive copper rings to isolate the plurality of conductive copper rings; a plurality of channels are provided inside the shape control roller mandrel; the plurality of channels each are provided therein with an insulated wire; the insulated wire comprises a first end connected to an inner wall of the conductive copper ring and a second end connected to the conductive rotary joint for current transmission; the conductive rotary joints are connected to a main circuit and a control circuit and configured to control on/off of different conductive copper rings; the main circuit comprises a first power supply, a first multi-way contactor, a second multi-way contactor, and a multi-way thermal relay heating coil; a positive terminal of the first power supply is connected to a first end of the first multi-way contactor, and a second end of the first multi-way contactor is connected to the conductive rotary joint at a first end of the shape control roller mandrel; a negative terminal of the first power supply is connected to a first end of the multi-way thermal relay heating coil, and a second end of the multi-way thermal relay heating coil is connected to a first end of the second multi-way contactor; a second end of the second multi-way contactor is connected to the conductive rotary joint at a second end of the shape control roller mandrel; the conductive rotary joints at the two ends of the shape control roller mandrel are connected to corresponding conductive copper rings through the insulated wires; the control circuit comprises a second power supply, a programmable logic controller (PLC), a multi-way contactor control coil, a multi-way thermal relay, an output circuit fuse, and an input master button, pins X000 to X002 of the PLC are respectively connected to corresponding first ends of SB1 to SB3 of the input master button; second ends of SB1 to SB3 of the input master button are connected to a pin COM of the PLC; a pin COM0 of the PLC is connected to a first end of the output circuit fuse, and a second end of the output circuit fuse is connected to a positive terminal of the second power supply; pins Y000 to Y00n of the PLC are respectively connected to corresponding first ends of KM.sub.1 to KM.sub.n of the multi-way contactor control coil; pins Y00(n+1) to Y00(2n) of the PLC are respectively connected to corresponding first ends of KM.sub.1a to KM.sub.na of the multi-way contactor control coil; second ends of KM.sub.1a to KM.sub.na of the multi-way contactor control coil are respectively connected to corresponding first ends of KH.sub.1a to KH.sub.na of the multi-way thermal relay; second ends of KM.sub.1 to KM.sub.n of the multi-way contactor control coil and second ends of KH.sub.1a to KH.sub.na of the multi-way thermal relay are connected to a negative terminal of the second power supply; an insulating ceramic roller sleeve is provided between the outer wall of the shape control roller mandrel and inner walls of the plurality of conductive copper rings and the insulating ceramic rings to achieve insulation and heat protection between the shape control roller mandrel and the plurality of conductive copper rings; and a shock-absorbing rubber sleeve is provided between the outer wall of the shape control roller mandrel and an inner wall of the insulating ceramic roller sleeve to achieve shock absorption during movement of the shape control roller mandrel, the plurality of conductive copper rings, and the insulating ceramic rings.

12. The electro-plastic shape control roller system based on the transverse partitioning and independent control according to claim 11, wherein a key is provided to achieve position limiting between an outer wall of the shock-absorbing rubber sleeve and the inner wall of the insulating ceramic roller sleeve.

13. The electro-plastic shape control roller system based on the transverse partitioning and independent control according to claim 11, wherein in the main circuit, a line connecting the positive terminal of the first power supply to the first multi-way contactor is provided with a multi-way fuse for protecting normal operation of the main circuit.

14. The electro-plastic shape control roller system based on the transverse partitioning and independent control according to claim 11, wherein lower sides of the plurality of conductive copper rings and the insulating ceramic rings are immersed into an oil medium cooler for cooling.

15. The electro-plastic shape control roller system based on the transverse partitioning and independent control according to claim 14, wherein a maximum width of the conductive copper ring and a maximum width of the insulating ceramic ring are one eighth of a width of a strip.

16. The electro-plastic shape control roller system based on the transverse partitioning and independent control according to claim 11, wherein the first power supply is a high-frequency pulse power supply.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0020] FIG. 1 is a schematic diagram according to the present disclosure;

[0021] FIG. 2 is a top view according to the present disclosure;

[0022] FIG. 3 is a section view taken along line A-A shown in FIG. 2;

[0023] FIG. 4 is an enlarged view of circle B shown in FIG. 3;

[0024] FIG. 5 is a structural diagram of a shape control roller mandrel and a shock-absorbing rubber sleeve according to the present disclosure;

[0025] FIG. 6 is a top view of the shape control roller mandrel and the shock-absorbing rubber sleeve according to the present disclosure;

[0026] FIG. 7 is a section view taken along line C-C shown in FIG. 6;

[0027] FIG. 8 is a schematic diagram of the shock-absorbing rubber sleeve according to the present disclosure;

[0028] FIG. 9 is a schematic diagram of an insulating ceramic roller sleeve according to the present disclosure;

[0029] FIG. 10 is a line and hardware connection diagram of a main circuit according to the present disclosure, and

[0030] FIG. 11 is a line and hardware connection diagram of a control circuit according to the present disclosure.

[0031] Reference Numerals: 1. shape control roller mandrel; 2. conductive copper ring; 3. insulating ceramic ring; 4. bearing seat; 5. insulated wire; 6. shock-absorbing rubber sleeve; 7. insulating ceramic roller sleeve; 8. first power supply; 8-1. second power supply; 9. key; 10. conductive rotary joint; 11. channel; 701. multi-way contactor; 702. multi-way fuse; 703. multi-way contactor; 704. multi-way thermal relay heating coil; 901. PLC; 902. multi-way contactor control coil; 903. multi-way thermal relay; 904. output circuit fuse; and 905. input master button.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] The specific implementations of the present disclosure are described in further detail below with reference to the drawings.

[0033] According to FIGS. 1 to 11, the present disclosure provides an electro-plastic shape control roller system based on transverse partitioning and independent control, including shape control roller mandrel 1. Two ends of the shape control roller mandrel 1 are respectively inserted into bearing seats 4 for fixation. A bearing is provided between each of the two ends of the shape control roller mandrel 1 and the bearing seat 4 to improve rotation smoothness of the shape control roller mandrel 1. Conductive rotary joints 10 are respectively fitted on outer walls of the two ends of the shape control roller mandrel 1, and multiple conductive copper rings 2 are fitted on an outer wall of a middle of the shape control roller mandrel 1. Insulating ceramic rings 3 are arranged between adjacent conductive copper rings 2 to isolate the conductive copper rings 2. A maximum width of the conductive copper ring 2 and a maximum width of the insulating ceramic ring 3 are one eighth of a width of a strip. Multiple channels 11 are provided inside the shape control roller mandrel 1. The channels 11 each are provided therein with insulated wire 5. The insulated wire 5 includes one end connected to an inner wall of the conductive copper ring 2 and the other end connected to the conductive rotary joint 10 for current transmission. The conductive rotary joints 10 are connected to a main circuit and a control circuit and configured to control on/off of different conductive copper rings 2. Lower sides of the conductive copper rings 2 and the insulating ceramic rings 3 are immersed into an oil medium cooler for cooling.

[0034] Insulating ceramic roller sleeve 7 is provided between the outer wall of the shape control roller mandrel 1 and inner walls of the conductive copper rings 2 and the insulating ceramic rings 3 to achieve insulation and heat protection between the shape control roller mandrel 1 and the conductive copper rings 2. Shock-absorbing rubber sleeve 6 is provided between the outer wall of the shape control roller mandrel 1 and an inner wall of the insulating ceramic roller sleeve 7 to achieve shock absorption during movement of the shape control roller mandrel 1, the conductive copper rings 2, and the insulating ceramic rings 3. Key 9 is provided to achieve position limiting between an outer wall of the shock-absorbing rubber sleeve 6 and the inner wall of the insulating ceramic roller sleeve 7.

[0035] The main circuit includes first power supply 8, first multi-way contactor 701, second multi-way contactor 703, and multi-way thermal relay heating coil 704. A positive terminal of the first power supply 8 is connected to one end of the first multi-way contactor 701, and the other end of the first multi-way contactor 701 is connected to the conductive rotary joint 10 at one end of the shape control roller mandrel 1. A terminal of the first power supply 8 is connected to one end of the multi-way thermal relay heating coil 704, and the other end of the multi-way thermal relay heating coil 704 is connected to one end of the second multi-way contactor 703. The other end of the second multi-way contactor 703 is connected to the conductive rotary joint 10 at the other end of the shape control roller mandrel 1. The conductive rotary joints 10 at the two ends of the shape control roller mandrel 1 are connected to corresponding conductive copper rings 2 through the insulated wires 5. In the main circuit, a line connecting the positive terminal of the first power supply 8 to the first multi-way contactor 701 is provided with multi-way fuse 702 for protecting normal operation of the main circuit. The first power supply 8 is a high-frequency pulse power supply, with controllable parameters including output voltage, output current, pulse frequency, pulse width, and duty cycle. During operation, the conductive rotary joint 10 at one end of the shape control roller mandrel 1 is connected to the positive terminal of the first power supply 8 through a wire, and the conductive rotary joint 10 at the other end is connected to the negative terminal of the first power supply 8 through a wire. A number of branches connecting the conductive rotary joints 10 to the positive and terminals of the first power supply 8 is equal to a number of the conductive copper rings 6 in the middle of the shape control roller mandrel 1, and each branch is insulated from each other. During operation, the control circuit ensures that two ways of the same conductive copper ring 6 connected to the positive and terminals of the first power supply 8 are not connected simultaneously.

[0036] The control circuit includes second power supply 8-1, programmable logic controller (PLC) 901, multi-way contactor control coil 902, multi-way thermal relay 903, output circuit fuse 904, and input master button 905. Pins X000 to X002 of the PLC 901 are respectively connected to corresponding ends of SB1 to SB3 of the input master button 905. The other ends of SB1 to SB3 of the input master button 905 are connected to pin COM of the PLC 901. Pin COM0 of the PLC 901 is connected to one end of the output circuit fuse 904, and the other end of the output circuit fuse 904 is connected to a positive terminal of the second power supply 8-1. Pins Y000 to Y00n of the PLC 901 are respectively connected to corresponding ends of KM.sub.1 to KM.sub.n of the multi-way contactor control coil 902. Pins Y00(n+1) to Y00(2n) of the PLC 901 are respectively connected to corresponding ends of KM.sub.1a to KM.sub.na of the multi-way contactor control coil 902. The other ends of KM.sub.1a to KM.sub.na of the multi-way contactor control coil 902 are respectively connected to corresponding ends of KH.sub.1a to KH.sub.na of the multi-way thermal relay 903. The other ends of KM.sub.1 to KM.sub.n of the multi-way contactor control coil 902 and the other ends of KH.sub.1a to KH.sub.na of the multi-way thermal relay 903 are connected to a negative terminal of the second power supply 8-1. During operation, the PLC 901 logically controls the on/off of the multi-way contactor control coil 902, and the first contactor 701 and the second contactor 703 control the on/off between the first power supply 8 and the circuit of each conductive copper ring 2, ultimately achieving electro-plastic control of the strip. The multi-way thermal relay heating coil 704 of the main circuit affects the on/off of the multi-way thermal relay 903 in the control circuit, thereby controlling the temperature of the circuit of each conductive copper ring 2. If the temperature is too high, turn-off is enabled to prevent the circuit and components from burning out due to long-term high temperature in the circuit of the conductive copper ring 2. The multi-way fuse 702 in the main circuit prevents short circuits or severe overloads in the circuit, and prevents the instantaneous overcurrent of the circuit of the conductive copper ring 2 from causing the circuit and components to burn out. The PLC 901 ensures the connection between the conductive rotary joint 10 connected to any conductive copper ring 2 and the first power supply 8.

[0037] Axial widths of the conductive copper rings 2 and the insulating ceramic rings 3 arranged at intervals are uniformly or unevenly set, but the maximum width is one eighth of the width of the main rolled strip designed for the production line, to meet the shape control requirements for more than 4 passes.

[0038] Each conductive copper ring 2 can be individually controlled for power on/off, and the first power supply 8 can perform real-time control of electrical parameters. During operation, the strip is wrapped at a certain angle around surfaces of the conductive copper rings 2 that are transversely partitioned and independently controlled, ensuring good contact between the strip and the surfaces of the conductive copper rings 2.

[0039] The foregoing embodiments are not limited to the technical solutions of the embodiments, and the embodiments may be combined with each other to form new embodiments. The foregoing embodiments are merely intended to illustrate the technical solutions of the present disclosure, rather than limiting the present disclosure. Any modification or equivalent replacement without departing from the spirit and scope of the present disclosure shall fall within the scope of the technical solutions of the present disclosure.