Self-energy-storage wire unwinding machine standby power supply method

Abstract

The invention discloses a self-energy-storage standby power supply method for a filament unwinding machine, and belongs to the technical field of carbon fiber equipment. Through the design of a passive magnetic rotor energy storage device and an automatic switching power supply system, in the running process of the wire releasing machine, a magnetic rotor is driven by rotation of an original motor to cut magnetic lines of force, mechanical energy is converted into electric energy, the electric energy is stored in an energy storage unit, in normal power supply, the wire releasing machine takes power from the mains supply circuit side, and after power loss, the system is automatically switched; the energy storage unit continues to supply power, so that the normal operation of the filament releasing machine is maintained, and the situation that the filament bundle tension is uncontrolled, filament bundle fibers are broken, surface broken filaments are increased, and the quality of filament bundles is affected is avoided; and ferrite with high magnetic conductivity and low loss is selected, so that the energy conversion efficiency is improved, and the energy loss is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of carbon fiber equipment, and in particular relates to a backup power supply method for a self-energy storage fiber laying machine. Background Art

[0002] In actual engineering applications, the wire-releasing system is composed of a large number of independent control units. The raw wire passes through these units and is finally collected in the bundling device and enters the oxidation process section. Therefore, if any independent system fails to work, the tension of the wire bundle on the control unit will be out of control, resulting in the breakage of the wire bundle fibers and the increase of surface hairs, which not only increases the safety risk of the oxidation process, but also destroys the oxidation process. Therefore, the long-term and stable operation of the wire-releasing machine is the goal pursued by manufacturers:

[0003] Existing technical solutions: In the existing technology, in order to maintain a constant tension of the carbon fiber unwinding machine when the power is off, the power supply of the unwinding machine is usually connected to a low-profile dual circuit. This method can ensure that when a power failure occurs in one circuit, the other circuit can continue to supply power, thereby avoiding parking accidents caused by power failure:

[0004] Problems of the existing technology: However, the method of connecting the power supply of the wire laying machine to the low-profile dual circuit requires a large amount of line investment cost. In addition, this method also requires additional power supply, which not only increases energy consumption, but also increases the operating costs of manufacturers. Therefore, the problems of the existing technology in this field are mainly high cost and high energy consumption. Summary of the invention

[0005] The present invention mainly solves the technical problems existing in the above-mentioned prior art and provides a backup power supply method for a wire-laying machine with self-energy storage.

[0006] The above-mentioned technical problems of the present invention are mainly solved by the following technical solutions: a self-energy storage wire-unwinding machine backup power supply method, including an energy storage circuit, a mains circuit, a motor and a raw wire roller, and also including an energy storage unit, a passive magnetic rotor energy storage device and an automatic switching power supply system. The passive magnetic rotor energy storage device is composed of a magnetic rotor, a stator and a rectifier, and the automatic switching power supply system includes a drive, a PLC and two sets of switching switches.

[0007] Preferably, one group of the switching switches will drive and connect the energy storage circuit and the mains circuit respectively, and another group of the switching switches will connect the PLC with the energy storage circuit and the mains circuit. At the same time, the PLC is used to control the two groups of switching switches. The motor drives the raw silk roller to rotate through the belt to release the silk, and the passive magnetic rotor energy storage device is driven by the belt to rotate to generate electricity and charge the energy storage unit.

[0008] Preferably, during the operation of the wire unwinding machine, the magnetic rotor rotates inside the rotor to cut the magnetic lines of force to convert mechanical energy into electrical energy, which is stored in the energy storage unit.

[0009] Preferably, the rectifier converts the alternating current generated by cutting the magnetic lines of force into direct current, which is stored in the energy storage unit.

[0010] Preferably, when the AC power circuit is normally powered, the wire-releasing machine draws power from the AC power circuit; when power is lost, the PLC controls the two sets of switches to automatically switch, and the energy storage unit continues to supply power, thereby maintaining the normal operation of the wire-releasing machine.

[0011] Preferably, the magnetic rotor is made of a magnetic material with high magnetic permeability and low loss to improve energy conversion efficiency and reduce energy loss.

[0012] Preferably, the magnetic material is ferrite, the magnetic permeability of which is 10000 and the loss is 0.5 W / kg.

[0013] The invention has the beneficial effects as follows: by setting the design of the passive magnetic rotor energy storage device and the automatic switching power supply system, during the operation of the wire-releasing machine, the rotation of the original self-contained motor drives the magnetic rotor to cut the magnetic lines of force to convert mechanical energy into electrical energy, which is stored in the energy storage unit. During normal power supply, the wire-releasing machine draws power from the mains circuit side. When power is lost, the system automatically switches and continues to be powered by the energy storage unit, thereby maintaining the normal operation of the wire-releasing machine and avoiding uncontrolled tension of the wire bundle, resulting in breakage of the wire bundle fibers, an increase in surface hairs, and affecting the quality of the wire bundle.

[0014] Choose high permeability, low loss ferrite to improve energy conversion efficiency and reduce energy loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 It is a structural schematic diagram of the passive magnetic rotor energy storage device of the present invention.

[0017] In the figure: 1. Energy storage circuit; 2. AC power circuit; 3. Motor; 4. Raw yarn roller; 5. Energy storage unit; 6. Passive magnetic rotor energy storage device; 7. Automatic switching power supply system; 8. Magnetic rotor; 9. Stator; 11. Rectifier composition; 12. Drive; 13. PLC; 14. Switch. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0019] Embodiment: A method for a self-storage backup power supply for a wire laying machine, such as Figure 1-Figure 2As shown, it includes an energy storage circuit, a mains circuit, a motor and a raw silk roller, and also includes an energy storage unit, a passive magnetic rotor energy storage device and an automatic switching power supply system. The passive magnetic rotor energy storage device is composed of a magnetic rotor, a stator and a rectifier. The automatic switching power supply system includes a drive, a PLC and two groups of switching switches; one group of the switching switches connects the drive to the energy storage circuit and the mains circuit respectively, and the other group of the switching switches connects the PLC to the energy storage circuit and the mains circuit. At the same time, the PLC is used to control the two groups of switching switches. The motor drives the raw silk roller to rotate through a belt to release the silk, and the passive magnetic rotor energy storage device is driven by a belt to rotate to generate electricity to charge the energy storage unit.

[0020] During the operation of the wire unwinding machine, the magnetic rotor rotates inside the rotor to cut the magnetic lines of force, converting mechanical energy into electrical energy, which is stored in the energy storage unit; the rectifier converts the alternating current generated by cutting the magnetic lines of force into direct current, which is stored in the energy storage unit; when the AC power circuit is normally powered, the wire unwinding machine draws power from the AC power circuit; when power is lost, the PLC controls the two sets of switches to automatically switch, and the energy storage unit continues to supply power, thereby maintaining the normal operation of the wire unwinding machine; the magnetic rotor selects high magnetic permeability and low loss magnetic materials to improve energy conversion efficiency and reduce energy loss; the magnetic material is ferrite, whose magnetic permeability is 10000 and loss is 0.5W / kg.

[0021] The principle of the present invention: the structure of the passive magnetic device energy storage device is similar to that of the generator. The magnetic rotor is driven by the motor of the original equipment to rotate. The magnetic rotor rotates inside the stator, cutting the magnetic lines of force to convert mechanical energy into electrical energy, which is stored in the energy storage unit. The energy storage unit is incorporated into the AC power circuit of the original equipment through an automatic switching power supply system. During normal power supply, the wire-releasing machine draws power from the AC power circuit. When power is lost, the system automatically switches and the energy storage unit continues to supply power, thereby maintaining the normal operation of the wire-releasing machine.

[0022] Design of passive magnetic rotor energy storage device. The device is mainly composed of magnetic rotor, stator, inductor and rectifier. The material of magnetic rotor is selected from high magnetic permeability and low loss magnetic materials, such as ferrite. The material of stator is selected from high conductivity copper material, and the inductor is selected to have an inductance value of 100mH. The rectifier is selected from efficient rectifier bridge.

[0023] Design of automatic switching power supply system. When the low-profile power supply is in normal operation, the wire-laying machine draws power from the low-profile side; when the low-profile loses power, the system automatically switches to the energy storage unit to continue supplying power, thereby maintaining the normal operation of the wire-laying machine. The automatic switching unit is controlled by the PLC control system;

[0024] Optimization of magnetic materials. Select magnetic materials with high magnetic permeability and low loss to improve energy conversion efficiency and reduce energy loss. The specific material is ferrite, which has a magnetic permeability of 10000 and a loss of 0.5W / kg;

[0025] Optimization of inductor. Select an appropriate inductance value so that the energy storage device can continue to supply power for a long enough time after the low-power supply fails to ensure the normal operation of the wire-laying machine. The inductance value is selected as 100mH;

[0026] Optimization of the rectifier. Select an efficient rectifier to convert the AC generated by cutting the magnetic lines of force into DC and store it in the capacitor. Select an efficient rectifier bridge for the rectifier;

[0027] Control system design. Design a reasonable control system to realize the charge and discharge control of the energy storage device, and ensure that the energy storage unit can supply power in a timely and effective manner after the low-power supply fails;

[0028] Installation and debugging. The passive magnetic rotor energy storage device is installed on the carbon fiber unwinding machine, and the system is debugged and tested to ensure its reliability and stability in actual engineering applications. During the test, the rotation speed of the unwinding machine was 1000rpm, the voltage of the low-profile power supply was 220V, and the energy storage device was able to maintain the normal operation of the unwinding machine for more than 1 hour. The above are the specific steps of this embodiment. Through these steps, the design, installation and debugging of the passive magnetic rotor energy storage device can be realized, so that after the low-profile power supply loses power, the power supply continues to be supplied, the normal operation of the unwinding machine is maintained, and parking accidents caused by power failures are avoided.

[0029] Finally, it should be pointed out that the above embodiments are only representative examples of the present invention. Obviously, the present invention is not limited to the above embodiments, and there are many variations. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention should be considered to belong to the protection scope of the present invention.

Claims

1. A self-storage power supply method for a wire laying machine, comprising an energy storage circuit, a mains circuit, a motor and a raw wire roller, characterized in that: It also includes an energy storage unit, a passive magnetic rotor energy storage device and an automatic switching power supply system. The passive magnetic rotor energy storage device is composed of a magnetic rotor, a stator and a rectifier. The automatic switching power supply system includes a drive, a PLC and two sets of switching switches.

2. A self-energy storage wire laying machine backup power supply method according to claim 1, characterized in that: One group of the switching switches connects the drive to the energy storage circuit and the mains circuit respectively, and the other group of the switching switches connects the PLC to the energy storage circuit and the mains circuit. At the same time, the PLC is used to control the two groups of switching switches. The motor drives the raw silk roller to rotate through the belt to release the silk, and the passive magnetic rotor energy storage device is driven by the belt to rotate to generate electricity and charge the energy storage unit.

3. A self-energy storage wire laying machine backup power supply method according to claim 1, characterized in that: During the operation of the wire unwinding machine, the magnetic rotor rotates inside the rotor to cut the magnetic lines of force, converting mechanical energy into electrical energy, which is stored in the energy storage unit.

4. A self-energy storage wire laying machine backup power supply method according to claim 1, characterized in that: The rectifier converts the alternating current generated by cutting the magnetic lines of force into direct current and stores it in the energy storage unit.

5. A self-energy storage wire laying machine backup power supply method according to claim 1, characterized in that: When the mains circuit is in normal power supply, the wire-releasing machine draws power from the mains circuit; when power is lost, the PLC controls the two sets of switches to automatically switch, and the energy storage unit continues to supply power, thereby maintaining the normal operation of the wire-releasing machine.

6. A self-energy storage wire laying machine backup power supply method according to claim 1, characterized in that: The magnetic rotor selects magnetic materials with high magnetic permeability and low loss to improve energy conversion efficiency and reduce energy loss.

7. A self-energy storage wire laying machine backup power supply method according to claim 1, characterized in that: The magnetic material is ferrite, with a magnetic permeability of 10000 and a loss of 0.5W / kg.

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