CN112850362A - Constant-tension unreeling control system suitable for application in rotating body - Google Patents
Constant-tension unreeling control system suitable for application in rotating body Download PDFInfo
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- CN112850362A CN112850362A CN202011627919.5A CN202011627919A CN112850362A CN 112850362 A CN112850362 A CN 112850362A CN 202011627919 A CN202011627919 A CN 202011627919A CN 112850362 A CN112850362 A CN 112850362A
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- 230000005611 electricity Effects 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 230000007246 mechanism Effects 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 7
- 230000006698 induction Effects 0.000 claims description 6
- 230000005674 electromagnetic induction Effects 0.000 claims description 4
- 230000009347 mechanical transmission Effects 0.000 claims description 4
- 239000002994 raw material Substances 0.000 abstract description 3
- 230000000087 stabilizing effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000011265 semifinished product Substances 0.000 description 4
- 230000001939 inductive effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
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Abstract
The invention discloses a constant tension control system for unreeling raw materials in a rotating body, which comprises a generator, a power control unit, an internal operation unit, a power management unit, a storage battery and an external operation unit, wherein the generator, the power control unit, the internal operation unit, the power management unit and the storage battery are arranged in the rotating body, and the external operation unit is arranged outside the rotating body. In the invention, the power management unit is used for lifting and stabilizing the electric energy of the generator and then charging the storage battery, so that when the generator does not generate electricity, the constant tension unreeling control system can supply power through the storage battery, thereby fundamentally solving the power supply problem of a control object in the rotating body, realizing reasonable utilization of energy and thoroughly solving the problems of unstable tension control and power supply voltage at the initial stage or before the start of equipment.
Description
Technical Field
The invention relates to the technical field of steel wire rope production, in particular to an unreeling tension control system which is suitable for being applied to a platform (a boat) in a rotating body of stranding and rope-forming equipment and used when raw materials are led away from a spool.
Background
Tension control is particularly critical in the production of steel cord products. Especially for the stranding and twisting equipment of the steel wire rope, the stability of the tension of the single wire (strand) and the consistency of the tension among the single wires (strands) directly influence the quality of the product.
In the production process of the steel wire rope, a pipe stranding machine is widely adopted for stranding, a basket type rope forming machine is widely adopted for rope forming equipment, and the equipment is rotated into strands through pipes or bows at a high speed to form the ropes. The stranded semi-finished product is a monofilament, the stranded semi-finished product is a single strand, the semi-finished product is wound on a spool, and the spool is placed in a high-speed rotating pipe or a bow during production and is dragged out by external equipment to be unreeled and led away. The tension of the unwinding guide is the most important control point, the tension depends on the resistance applied to the semi-finished product winding spool by equipment, the traditional mode adopts mechanical friction braking to form, the reliability is poor, the size of the spool causes inconsistent tension of the whole yarn, meanwhile, the mechanical friction braking force of each station is difficult to be consistent, and the quality defects of stranded rope products are caused.
The industry has been lacking a reliable method of controlling the tension of a monofilament or a single strand, the greatest reason being: the control object is positioned inside a pipe or a bow rotating at high speed, and available control means all use a power supply which is difficult to enter. Also try to carry out power transmission with brush and current-collector, but the control object is more, and all keep apart each other moreover, brush and current-collector can only set up alone, therefore a large amount, and this kind of power transmission structure can't seal in addition, and in wire rope production process, the dust of production very easily attaches to between brush and the current-collector, causes brush and current-collector wearing and tearing very fast, causes the short circuit even. Meanwhile, in the power receiving process, the electric brush always moves up and down due to mechanical vibration, so that the reliability is very low, the failure rate is too high, and the real application cannot be realized. Therefore, a reliable method for controlling the tension of the single wire or the single strand is an industry difficult problem, cannot be solved all the time and is the biggest hidden quality trouble in the industry all the time.
The invention patent No. 2013103306404 discloses a method for controlling mechanical motion based on electromagnetic induction to convert mechanical energy of mechanical motion into inductive electric energy and store and output or consume the inductive electric energy, and controlling the motion parameters of the machine by controlling the current when storing and outputting or consuming the inductive electric energy, which is widely used in other related devices of non-regulated rotating internal control objects in the steel wire product industry.
However, although the mechanical motion control method of patent 2013103306404 makes it possible to use self-generation for control when the control object is located inside a pipe or a bow rotating at high speed, it does not solve the contradiction that the generator and the arithmetic unit as the actuator are not in the same space, specifically as follows:
the generator is used as an actuator, the rotor is directly or indirectly connected with the moving end of the controlled machine, and the output end of the generator is electrically connected with the power control unit. And the arithmetic unit is used for calculating and storing a current control target value of the output or consumption induction electricity according to the control target value of the mechanical motion and the electric parameter feedback value of the induction electricity and outputting the current control target value to the power control unit "
Further, "the arithmetic unit includes an I/O port or an upper computer for inputting a mechanical motion control target value and a control command, and a current control target value for calculating induced electricity from the mechanical motion control target value", it can be seen that if the method in this patent is applied to a case where a control object is located inside a pipe or a bow rotating at a high speed, a generator must be provided inside the pipe or the bow rotating at a high speed, and a power control unit is electrically connected thereto; meanwhile, the arithmetic unit is connected with the power control unit through an electric signal;
furthermore, the arithmetic unit is required to receive a command for a control target value or the like, which is mainly from the outside of the pipe or the bow rotating at a high speed, and it is seen that the arithmetic unit must be connected to an apparatus placed outside the pipe or the bow rotating at a high speed by an electric signal.
It is a difficult problem how to reasonably distribute the space arrangement among the units and establish the electrical connection between the inside and the outside of the high-speed rotating pipe or bow, so as to adapt the control to the control object in the high-speed rotating pipe or bow.
In addition, in the invention patent 2013103306404, it is also a difficult problem to solve how to process the induced electric energy generated by the generator, the voltage of which varies with the variation of the rotation speed of the controlled object, and use the processed induced electric energy as the control power source for the system operation, so as to adapt to the control of the controlled object inside the high-speed rotating pipe or the bow.
Disclosure of Invention
The invention aims to solve the technical problem that in the strand twisting and rope twisting equipment of a high-speed rotating steel wire rope in the prior art, the strand twisting and rope twisting equipment is suitable for a platform (a small ship) in a rotating body of the strand twisting and rope twisting equipment, and the problem that when raw materials are guided away from a spool, electricity is difficult to get by a control system during unreeling is solved, and the constant-tension unreeling control system suitable for application in the rotating body is provided.
In order to solve the technical problems, the invention provides the following technical scheme:
a constant tension unreeling control system suitable for application in a rotating body comprises an internal control module arranged in the rotating body and an external control module arranged outside the rotating body;
the built-in control module comprises a generator, a power control unit, a built-in operation unit, a power management unit and a storage battery;
the generator is an electromagnetic generator and comprises a stator and a rotor, wherein the stator is wound with an electromagnetic induction coil, and the rotor is provided with an electromagnet or a magnet exciting coil; the rotor is directly or indirectly connected with a moving end in the rotating body, and the output end of the generator is respectively and electrically connected with the power control unit and the power management unit;
the internal operation unit is electrically connected with the power control unit, controls the power control unit and obtains parameters of the generator, such as voltage, rotating speed and other related information of the generator.
The power management unit is used for modulating the induction electricity of the generator into required direct-current voltage, supplying power to the internal operation unit and the power control unit and charging the storage battery;
the external control module comprises an external operation unit, an I/O port and an HMI module; the external operation unit and the internal operation unit exchange data through wireless communication, share data and perform other functions, so as to realize control and monitoring of tension control inside a pipe or a bow rotating at high speed; the external operation unit is in communication connection with an I/O port and an HMI module, the I/O port is connected with the Internet or installation equipment, and the installation equipment is used for inputting the running state of a steel wire, tension control requirements and control signals.
The external operation unit transmits the operation signal and the parameters to the internal operation unit, the power control unit adjusts the current when the induced electricity is consumed according to the instruction of the internal operation unit, the output torque of the generator is changed, and then the force opposite to the paying-off direction is adjusted through a transmission mechanism or a mechanical connection mode, so that the paying-off constant tension control is realized.
When the rotating speed of the generator is detected to be too low or the generator stops running for a period of time, the electric energy in the storage battery is modulated into required direct-current voltage through the power management unit to be supplied to each unit.
The power management unit is provided with an automatic voltage rising and falling and stabilizing module, and can output stable direct-current voltage within a wider input range. When the equipment normally operates, the electric energy generated by the generator charges the storage battery through the power manager, and meanwhile, a control power supply is provided for the built-in operation unit and the power control unit which are arranged in the high-speed rotating pipe or bow. The equipment runs at extremely low speed or within a certain time after the equipment is shut down, and a power supply is controlled by a power supply manager to provide a control power supply for an internal operation unit and a power control unit which are arranged in a high-speed rotating pipe or a bow through a storage battery.
The moving end in the rotating body is a rotating shaft of the paying-off I-shaped wheel, and the rotating shaft is directly and mechanically connected with a rotor of the generator or connected with the rotor through a mechanical transmission mechanism.
The constant-tension unreeling control system suitable for being applied in the rotating body reasonably distributes the space arrangement of each unit, establishes wireless information transmission connection between the inside and the outside of a high-speed rotating pipe or a bow, and manages and distributes induction electric energy so as to supply power to each unit. Therefore, the industrial problem that a reliable tension control method is lacked in the high-speed rotating rotator is solved, the constant tension paying-off control in the high-speed rotating rotator is realized, and the fluctuation of the tension control is within +/-5% of a set value.
The invention utilizes the power management unit to lift and stabilize the electric energy of the generator and then charge the storage battery, so that when the generator does not generate electricity, the constant tension unreeling control system can supply power through the storage battery, thereby fundamentally solving the technical problems that when a control object is positioned in a pipe or a bow rotating at a high speed, the control system is difficult to take power and cannot wire or faults frequently occur because a power supply transmission structure cannot be closed.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a functional block diagram of the present invention;
FIG. 2 is a schematic structural diagram of an embodiment;
FIG. 3 is a schematic structural diagram of an embodiment;
FIG. 4 is a schematic structural diagram of an embodiment.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Examples
As shown in fig. 1, a constant tension unreeling control system adapted to be applied in a rotating body includes an internal control module disposed in the rotating body and an external control module disposed outside the rotating body;
the built-in control module comprises a generator, a power control unit, a built-in operation unit, a power management unit and a storage battery;
the generator is an electromagnetic generator and comprises a stator and a rotor, wherein the stator is wound with an electromagnetic induction coil, and the rotor is provided with an electromagnet or a magnet exciting coil; the rotor is directly or indirectly connected with a moving end in the rotating body, and the output end of the generator is respectively and electrically connected with the power control unit and the power management unit;
the internal operation unit is electrically connected with the power control unit, controls the power control unit and obtains parameters of the generator;
the power management unit is used for modulating the induction electricity of the generator into required direct-current voltage, supplying power to the internal operation unit and the power control unit and charging the storage battery;
the external control module comprises an external operation unit, the external operation unit is used for acquiring equipment operation information, and the external operation unit and the internal operation unit exchange data through wireless communication;
the external operation unit transmits the operation signal and the parameters to the internal operation unit, the power control unit adjusts the current when the induced electricity is consumed according to the instruction of the internal operation unit, the output torque of the generator is changed, and then the force opposite to the paying-off direction is adjusted through a transmission mechanism or a mechanical connection mode, so that the paying-off constant tension control is realized.
When the rotating speed of the generator is detected to be too low or the generator stops running for a period of time, the electric energy in the storage battery is modulated into required direct-current voltage through the power management unit to be supplied to each unit.
The power management unit is provided with an automatic voltage boosting and reducing and stabilizing module.
The moving end in the rotating body is a rotating shaft of the paying-off I-shaped wheel, and the rotating shaft is directly and mechanically connected with a rotor of the generator or connected with the rotor through a mechanical transmission mechanism.
The external operation unit is in communication connection with an I/O port and an HMI module, the I/O port is connected with the Internet or installation equipment, and the installation equipment is used for inputting the running state of a steel wire, tension control requirements and control signals.
Fig. 2 is a specific layout of the constant tension pay-off system of the present invention in a rotating body rotating at a high speed, in fig. 2, a fixed boat 7 is arranged in the rotating body 6 rotating at a high speed, an external control module 5 is arranged outside the rotating body 6, and an internal operation unit, a power control unit and a power management unit in the internal control module are integrated together to form a tension control device 10; the tension control device 10 is fixed to the stationary boat together with the battery 9. The external control module 5 is communicated with an internal operation unit in the tension control device 10 through wireless communication.
And a generator 1 of the built-in control module is connected with a rotating shaft of the paying-off I-shaped wheel 3 through a transmission mechanism 8.
When the equipment is started, the external control module 5 transmits information such as operation signals and operation parameters of the external operation unit to the tension control device 10 through wireless transmission, the traction wheel pulls the steel wire 2, the steel wire 2 is led away from the pay-off I-shaped wheel 3, and the pay-off I-shaped wheel 3 starts to rotate passively, so that the transmission mechanism 8 drives the generator 1 to rotate, and the generator 1 rotates to generate induced electricity. The induced electricity is modulated into required direct current voltage through the power management module, and power is provided for each unit or the storage battery is charged. Meanwhile, a part of the induced electricity is consumed by the power control unit, the power control unit adjusts the current when the induced electricity is consumed according to the instruction of the tension control device 10, the torque output by the generator (namely, a tension control system actuator) is changed, and the force opposite to the paying-off direction is adjusted through a transmission mechanism/mechanical connection mode, so that the paying-off constant tension control is realized.
The current when the induced electricity is consumed is calculated according to the rotating speed and the voltage of the generator fed back to the internal operation unit by the power control unit, the preset value of the external operation unit, and the equipment operation parameters and the tension set value transmitted to the internal operation unit in a wireless mode.
When the rotating speed of the generator is detected to be too low or the generator stops running for a period of time, the electric energy in the storage battery is modulated into required direct-current voltage through the power management unit to be supplied to each unit.
The built-in installation part:
in the actual operation process, the rotating body rotates at a high speed, and parts in the system can only be arranged on a fixed small ship. The generator is connected with the shaft of the paying-off spool through the mechanical transmission mechanism, and the tension control device and the storage battery are fixed near the generator and are not easy to be hit by broken wires. All parts in the machine are connected through electric wires.
The outer installation part of machine:
the external control module is installed outside the machine, is connected with the equipment host and is responsible for receiving and transmitting the running state of the installed equipment, tension control requirements, control signals and the like.
FIG. 3 shows one embodiment of a constant tension pay-off system in a rotating body rotating at a high speed, in FIG. 3, a generator 1 is connected with a spool rotating shaft center 4 in a synchronous belt manner, and a tension control device in the machine
The internal operation unit, the power control unit and the power management unit in the internal control module are integrated together and fixed on a fixed small ship together with the storage battery 9.
Fig. 4 shows one embodiment of a constant tension pay-off system in a rotating body rotating at a high speed, in fig. 4, a generator 1 is directly connected with a spool rotating shaft center 4 in a mechanical mode, and a tension control device 10 is formed by integrating an internal operation unit, a power control unit and a power management unit in an internal control module and is fixed on a fixed small ship together with a storage battery 9.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A constant tension unreeling control system suitable for being applied in a rotating body is characterized by comprising an internal control module arranged in the rotating body and an external control module arranged outside the rotating body;
the built-in control module comprises a generator, a power control unit and a built-in operation unit;
the generator is an electromagnetic generator and comprises a stator and a rotor, wherein the stator is wound with an electromagnetic induction coil, and the rotor is provided with an electromagnet or a magnet exciting coil; the rotor is directly or indirectly connected with a moving end in the rotating body, and the output end of the generator is electrically connected with the power control unit;
the internal operation unit is electrically connected with the power control unit, controls the power control unit and obtains parameters of the generator;
the external control module comprises an external operation unit, the external operation unit is used for acquiring equipment operation information, and the external operation unit and the internal operation unit exchange data through wireless communication;
the external operation unit transmits the operation signal and the parameters to the internal operation unit, the power control unit adjusts the current when the induced electricity is consumed according to the instruction of the internal operation unit, the output torque of the generator is changed, and then the force opposite to the paying-off direction is adjusted through a transmission mechanism or a mechanical connection mode, so that the paying-off constant tension control is realized.
2. The system of claim 1, wherein the internal control module further comprises a power management unit and a battery;
the output end of the generator is electrically connected with the power management unit, and the power management unit is used for modulating the induction electricity of the generator into required direct-current voltage, supplying power for the built-in operation unit and the power control unit and charging the storage battery.
3. The system of claim 2, wherein the electric energy in the storage battery is modulated to the required DC voltage by the power management unit to supply to each unit when a period of time after the rotation speed of the generator is detected to be too low or the generator stops running.
4. The constant tension unwinding control system adapted for use in a rotating body of claim 1, wherein the moving end in the rotating body is a rotating shaft of an h-wheel for unwinding, and the rotating shaft is mechanically connected to a rotor of a generator directly or through a mechanical transmission mechanism.
5. The constant tension unwind control system adapted for in-rotor applications of claim 1, wherein said off-board control module further comprises an I/O port and an HMI module; the external operation unit is in communication connection with an I/O port and an HMI module, the I/O port is connected with the Internet or installation equipment, and the installation equipment is used for inputting the running state of a steel wire, tension control requirements and control signals.
6. The system of claim 2, wherein the power management unit is configured with an auto buck-boost regulator module.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114216419A (en) * | 2021-12-10 | 2022-03-22 | 江阴天润信息技术有限公司 | Combined type meter counting system of wire collecting equipment in rotating body |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114216419A (en) * | 2021-12-10 | 2022-03-22 | 江阴天润信息技术有限公司 | Combined type meter counting system of wire collecting equipment in rotating body |
| CN114216419B (en) * | 2021-12-10 | 2023-08-18 | 江阴天润信息技术有限公司 | Combined type meter counting system of take-up equipment in rotating body |
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| Publication number | Publication date |
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| CN112850362B (en) | 2024-05-28 |
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