High-speed doubling machine control system for yarn production

Abstract

The invention relates to the technical field of textile, in particular to a high-speed doubling machine control system for yarn production, which comprises a master control system and a plurality of winding units, and the winding units are used for winding a plurality of strands of spun yarns into a strand of rough yarns; the number of the sub-control units is matched with the number of the winding units, one sub-control unit is connected with one winding unit, the multiple sub-control units are all connected with the master control system, and the sub-control units are used for controlling the winding length of each winding unit, receiving wire breaking signals and controlling the winding units to stop. Under the condition of yarn breakage, the operation of the corresponding winding unit can be directly stopped through the system, so that the situation of abnormal winding is avoided, the production stability of equipment is improved, the failure rate is reduced, the maintainability of the equipment is improved, the maintenance cost of the equipment is reduced, and the yarn winding and production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of textile technology, and in particular to a high-speed doubling machine control system for yarn production. Background Art

[0002] In the textile field, yarn needs to be formed by winding multiple strands of fine wire through a winding machine. The winding machine usually includes multiple winding units, each winding unit includes a winding wheel and a corresponding yarn guide shuttle, and the winding wheel is usually driven to rotate by a driving wheel. The driving source controls the rotation of the driving wheel, and the driving wheel abuts against the winding wheel and drives the winding wheel to rotate through friction.

[0003] In the existing yarn doubling machine, when the detection device is broken, manual intervention is generally required to shut down the machine. If the shutdown is not timely, it is easy to cause abnormal winding and reduce the winding efficiency. Summary of the invention

[0004] The present invention aims to solve one of the problems existing in the background technology.

[0005] To this end, the present invention provides a high-speed doubling machine control system for yarn production.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] A control system for a high-speed doubling machine for yarn production, comprising:

[0008] Master control system, and

[0009] A plurality of winding units, wherein the winding units are used to wind a plurality of spun yarns into a spun yarn;

[0010] Sub-control units, the number of which is adapted to the number of winding units, one sub-control unit is connected to one winding unit, and a plurality of sub-control units are all connected to the main control system, and the sub-control units are used to control the winding length of each winding unit, receive a line break signal and control the winding unit to stop.

[0011] Furthermore, the sub-control unit includes a first control board, a second control board and a logic control board, and the logic control board is used to perform logic operation control on the first control board, the second control board and the winding unit corresponding to the sub-control unit.

[0012] Furthermore, a meter counter, a fixed-length alarm light and a reset button are provided on the first control board, the meter counter is used to monitor the winding length of the roving in the winding unit, and the meter counter, the fixed-length alarm light and the reset button are all connected to the logic control board.

[0013] Furthermore, the second control panel is provided with a start button, a stop button and a disconnection alarm light, and the start button, the stop button and the disconnection alarm light are all connected to the logic control panel.

[0014] Furthermore, the winding unit includes a driving roller, a yarn roller and a yarn guide shuttle, the axial direction of the driving roller is parallel to the axial direction of the yarn roller, the driving roller abuts against the yarn roller and drives the yarn roller to rotate through rolling friction, and the driving roller is provided with a Hall sensor for detecting the linear speed and number of rotations of the driving roller, and the Hall sensor is connected to the meter.

[0015] Furthermore, a wire breakage self-locking control switch is arranged between the yarn guide shuttle and the yarn rollers of the multiple yarns. The wire breakage self-locking control switch is used to detect whether the fine yarn is broken at the yarn guide shuttle. A photoelectric switch is arranged on the yarn roller of each yarn. The wire breakage self-locking control switch and the photoelectric switch on the yarn roller of each yarn are electrically connected to the logic control board.

[0016] Furthermore, a winding control circuit is provided in the logic control board, and the winding control circuit includes a parking indicator light circuit and an interlocking circuit. The winding control circuit is used to control the start and stop of the winding unit and the fixed length of the yarn winding.

[0017] Furthermore, the interlocking circuit includes a start signal receiver U30 connected to the start button on the second control panel, a parking signal receiver SW1 connected to the stop button on the second control panel, a start-pressed signal collection switch U29 linked to U30, a start relay RELAY5, a parking relay RELAY6 and a diode U28, the start signal receiver U30 is connected to the start relay RELAY5, the parking indicator light circuit is connected in parallel to the start relay RELAY5, the interface No. 2 of the parking signal receiver SW1 is connected to the parking relay RELAY6, and its interface No. 3 is connected to the fixed-length warning light; a diode U28 is connected in parallel to the parking relay RELAY6, wherein a line connected to the configuration screen host computer is arranged between the No. 2 interface of the start signal receiver U30 and the start relay RELAY5; a line connected to the meter and the configuration screen host computer is arranged between the No. 2 interface of the parking signal receiver SW1 and the parking relay RELAY6.

[0018] Furthermore, the parking indicator light circuit includes a resistor R32, an optical coupler U26, a diode U27, a resistor R30, a resistor R35, a resistor R37, a transistor Q7, an LED1 and a resistor R28, the optical coupler U26 is connected in parallel to the start relay RELAY5, the interface No. 1 of the optical coupler U26 is connected to the start relay RELAY5 through the resistor R32, the interface No. 3 of the optical coupler U26 is directly connected to the start relay RELAY5, the interface No. 4 of the optical coupler U26 is grounded, the interface No. 6 is connected to the resistors R30 and R35, one end of the diode U27 is connected between the resistor R32 and the start relay RELAY5, and the other end is connected to the optical coupler U 26 and the starting relay RELAY5; the transistor Q7 is an NPN transistor, one end of the resistor R35 is connected to the interface No. 6 of the optocoupler U26, and the other end is connected to the base B of the transistor Q7, the emitter E of the transistor Q7 is connected to the resistor 37, and the end of the resistor R37 away from the emitter E of the transistor Q7 is connected between the resistor R35 and the base B of the transistor Q7, the collector C of the transistor Q7 is connected to LED1, and the resistor R28 is connected to the end of LED1 away from the transistor Q7.

[0019] Furthermore, a main power module is provided in the master control system, and the main power module is provided with a power circuit, which includes a power interface U22, a protection circuit and a DC / DC power conversion circuit. The power interface U22 is connected to an external 24V DC power supply, and the power protection circuit includes a resettable fuse U19 and an anti-reverse diode U20. One end of the resettable fuse U19 is connected to the power interface U22, and the other end is connected to the positive electrode of the anti-reverse diode U20. The negative electrode of the anti-reverse diode U20 is connected to the DC / DC power conversion circuit; the DC / DC power conversion circuit includes a buck converter U25, a capacitor C22, an external boost capacitor C19, a capacitor C23, a resistor R36, a resistor R26, a resistor R27 and an inductor L1. The pin VIN on the buck converter U25 is a power input interface connected to the anti-reverse diode U20. The capacitor C22 is connected between the pin VIN of the buck converter U25 and the anti-reverse diode One end of the resistor R36 is connected to the enable pin EN of the buck converter U25, and the other end is connected between the capacitor C22 and the pin VIN. One end of the inductor L1 is directly connected to the switch control pin SW of the buck converter U25, and the other end outputs a 12V current and is connected to the positive electrode of the capacitor C23. One end of the external boost capacitor C19 is connected to the BST pin of the buck converter U25, and the other end is connected between the pin SW of the buck converter U25 and the inductor L1. One end of the resistor R27 is connected to the pin FB of the buck converter U25, and the other end is connected to the output side of the inductor L1. One end of the resistor R26 is connected to the ground pin GND, and the other end is connected to the resistor R27.

[0020] The beneficial effect of the present invention is that the application uses a logic control board to realize the start and stop control of the winding module, the winding fixed length control and the line break parking control, and realizes the integrated management of multiple winding units through the master control system. The master control system and each unit communicate through RS485 to ensure that the communication addresses of each unit do not conflict, and the counter and driver addresses are distinguished to avoid data confusion caused by erroneous communication. Therefore, in the event of a line break, the operation of the corresponding winding unit can be directly shut down by the system, thereby avoiding abnormal winding, improving the production stability of the equipment, reducing the failure rate, improving the maintainability of the equipment, reducing the equipment maintenance cost, and improving the yarn winding and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is a structural schematic diagram of a control system of a high-speed doubling machine for yarn production in the present invention.

[0023] Figure 2 It is a structural schematic diagram of the power supply circuit in the present invention.

[0024] Figure 3 It is a structural schematic diagram of the interrupted yarn information monitoring and processing circuit of the present invention.

[0025] Figure 4 It is a structural schematic diagram of the winding control circuit in the present invention.

[0026] In the figure: 1. yarn roller; 2. driving roller; 3. yarn guide shuttle. DETAILED DESCRIPTION

[0027] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] Reference Figure 1 A high-speed winding machine control system for yarn production includes a master control system and a plurality of sub-control units connected to the master control system, each sub-control unit correspondingly controlling a winding unit.

[0031] Specifically, the master control system includes a master control panel, a controller, a three-color light, a power light, a main switch, a main power module and a power failure detection module. The power failure detection module is connected to the main power module, and the main power module is also connected to a supercapacitor UPS. The master control system mainly provides human-computer interaction of the whole machine, setting the set length of each unit, starting the whole machine, stopping the whole machine, equipment status display, equipment abnormality alarm, unit yarn break alarm, master control system electrical, three-phase 380V AC power of each unit, 24V DC power supply of each unit, UPS charging management, power failure detection, to ensure that the whole equipment stops when the power fails, and save the set parameters and production data. In this embodiment, the master control panel adopts Kunlun Tongtai 7-inch configuration screen for touch control.

[0032] Take a sub-control unit as an example. The sub-control unit includes a first control board, a second control board and a logic control board. The logic control board is used to perform logical operation control on the first control board, the second control board and the winding unit corresponding to the sub-control unit in the sub-control unit to ensure that the system operates and controls according to the business logic, and needs to be connected with each module. Specifically, a meter, a fixed-length alarm light and a reset button are provided on the first control board, and a start button, a stop button and a disconnection alarm light are provided on the second control board. The fixed-length alarm light, the reset button, the start button, the stop button and the disconnection alarm light are all connected to the logic control board, and RS485 communication is adopted between the first control board and the logic control board and the controller.

[0033] The winding unit corresponding to the sub-control unit includes a driving roller 2, a yarn roller 1 and a yarn guide shuttle 3. After the multiple strands of fine yarns are gathered into one strand, they pass through the yarn guide shuttle 3. A self-locking control switch for breaking the yarn is arranged between the yarn guide shuttle 3 and the yarn rollers of the multiple strands of fine yarns. The self-locking control switch for breaking the yarn is used to detect whether the coarse yarn after being gathered into one strand is broken. In addition, a photoelectric switch is arranged on the yarn roller of each strand of fine yarn. The self-locking control switch for breaking the yarn and the photoelectric switch on the yarn roller of each strand of fine yarn are electrically connected to the logic control board. As long as one strand of fine yarn is broken in the coarse yarn gathered into one strand, all yarn rollers are controlled to stop rotating so as to deal with the broken yarn. The distance between the driving roller 2 and the yarn roller 1 is adjustable with the thickness of the yarn winding. The driving roller 2 and the yarn roller 1 are closely abutted so that the driving roller 2 drives the yarn roller 1 to rotate. It should be noted that a Hall sensor is arranged on the driving roller 2. The Hall sensor cooperates with the meter counter to monitor the linear speed and the number of rotations of the driving roller 2 to judge the length of the yarn wound on the yarn roller 1.

[0034] The motor for controlling the rotation of the driving roller 2 is connected to the logic control board through the motor driving module. RS485 communication is adopted between the motor driving module and the logic control board, and the motor driving module inverter is connected to the master control power supply module through three-phase AC power.

[0035] It should be noted that the first control panel mainly realizes the counting of the set meter length of the unit spindle, automatically stops after running to the specified length (current unit), and lights up the indicator, and provides a meter counter reset function. If it is not reset, the start button on the second control panel cannot start the unit motor. If it is reset, the start button on the second control panel can start the unit motor. The first control panel uses a thin film PET panel.

[0036] When the first control board detects that the yarn has reached the specified length, it will pass an output signal to the unit logic control board. The first control board supports RS485 communication, and the head master control system sends the unit's set length to the meter meter fixed length setting value in the first control board through the touch panel. If production collection is to be achieved, the head master control system needs to quickly and regularly query the current count value and set value for real-time data collection. When debugging the system, the RS485 Modbus communication address needs to be set, and it must be distinguished from the RS485 Modbus address of the unit motor drive module to prevent data confusion.

[0037] The second control panel mainly realizes the unit spindle break detection, multi-channel yarn break detection alarm indication, and red light indication; at the same time, it provides the unit start and stop button function. The second control panel adopts a thin film PET panel.

[0038] The motor drive module mainly realizes the motion motor drive of the unit. The three-phase motor of the unit is a 380V AC asynchronous motor with a power of 180W. It can only run in one direction and needs to have over-voltage and over-current containment functions. At the same time, it has an electronic brake function to ensure that the unit stops quickly and reduce the difficulty of yarn breakage.

[0039] The motor drive module has RS485 communication function, and can communicate with the machine head master control system through RS485 communication bus to set drive parameters and query drive abnormal alarm. When the drive stops, the motor status can be queried through RS485 to alarm the unit stop. At the same time, the Modbus address of the drive should be set in advance when debugging the equipment, and it should be distinguished from other drives and counters to prevent data confusion. The deceleration time of the drive is set to 0.1S. The module is installed and fixed in the crossbeam wire groove on the back of the paralleling machine. If the brake alarm sounds, a special brake resistor of 80W, 200 ohms needs to be installed, and it must be fixed separately, away from flammable materials and plastic products, to prevent fires in special circumstances.

[0040] The implementation principle of the control system of this high-speed doubling machine for yarn production is:

[0041] After multiple strands of yarn are gathered into a roving, they pass through the yarn guide shuttle 3. If there is a yarn break in the roving gathered into a strand, all yarn rollers are controlled to stop rotating in order to deal with the broken yarn. During the yarn winding process, the meter counter calculates the yarn winding length through the Hall sensor pulse signal on the driving roller 2. When the yarn is wound to a certain length, the meter counter controls the fixed length alarm light to light up, and controls the driving roller 2 to stop rotating through the logic control board. When the operator takes out the wound yarn and replaces it with a new yarn roller 1, first press the reset button on the first control panel, and then press the start button on the second control panel to start the yarn winding operation again.

[0042] It should be noted that the main power module is equipped with a 380V three-phase AC power supply and a 24VDC power supply system, and the power supply is connected to each unit through the crossbeam wire trough behind the machine. The main power module is equipped with a power circuit, such as Figure 2 As shown, the power supply circuit includes a power supply interface U22, a protection circuit and a DC / DC power supply conversion circuit. The power supply interface U22 is connected to an external 24V DC power supply, the power supply interface U22 is connected to the protection circuit, the protection circuit is connected to the DC / DC power supply conversion circuit, and the DC / DC power supply conversion circuit supplies power to subsequent sub-control units and winding units.

[0043] Specifically, the power protection circuit includes a resettable fuse U19 and an anti-reverse diode U20. One end of the resettable fuse U19 is connected to the power interface U22, and the other end is connected to the positive electrode of the anti-reverse diode U20. The negative electrode of the anti-reverse diode U20 is connected to the DC / DC power conversion circuit.

[0044] The current entering the power circuit passes through the self-resetting fuse U19 (the tripping current is set to 1A) for overcurrent protection, and then the current passes through the anti-reverse diode to achieve reverse connection protection.

[0045] The DC / DC power conversion circuit includes a buck converter U25, a capacitor C22, an external boost capacitor C19, a capacitor C23, a resistor R36, a resistor R26, a resistor R27 and an inductor L1. The buck converter U25 is set as a JW5026 chip, which is provided with 6 pins, the pin VIN is a power input interface connected to the anti-reverse diode U20, the capacitor C22 is connected between the pin VIN and the anti-reverse diode U20, one end of the resistor R36 is connected to the enable pin EN of the buck converter U25, and the other end is connected between the capacitor C22 and the pin VIN, one end of the inductor L1 is directly connected to the switch control pin SW of the buck converter U25, and the other end outputs 12V current and is connected to the positive electrode of the capacitor C23, and the stable output 12V power supply provides a stable voltage for each functional module of the control board. Furthermore, one end of the external boost capacitor C19 is connected to the BST pin of the chip, and the other end is connected between the SW pin and the inductor L1; one end of the resistor R27 is connected to the pin FB, and the other end is connected to the output side of the inductor L1; one end of the resistor R26 is connected to the ground pin GND, and the other end is connected to R27.

[0046] The current signal output from the anti-reverse diode U22 enters the buck converter U25. The input power range of the buck converter U25 is 4.7V~40V, and the maximum output current is 1A. At the same time, it integrates MOSFET, has a switching frequency of 1.1MHz, and an energy efficiency of up to 93%. It also has short-circuit protection, temperature protection, and overcurrent protection. It has the characteristics of high integration, low cost, high efficiency, low heat generation, safety and reliability. R36 is the startup current limiting resistor of the U25 chip, which is used to enable the chip output to ensure that it starts working as soon as it is powered on. The capacitor C22 between the anti-reverse diode U20 and the pin VIN is used to store energy, reduce noise, and initially stabilize the input power supply.

[0047] The output end of the inductor L1 is provided with a capacitor C23 for output energy storage / filtering. The inductor L1 outputs a 12V voltage, and the stable output power supply is then provided to provide a stable voltage to each functional module of the control board. Specifically, the L1 inductor is a DC / DC energy storage inductor, which is used for energy storage and freewheeling. The resistor R26 and the resistor R27 between the inductor L1 and the ground pin CND of the chip form a voltage feedback network to adopt and feedback the output voltage. The feedback signal passes through the resistor R27 and then reaches the buck converter U25 through the pin FB. The buck converter U25 then performs voltage stabilization control. The external boost capacitor C19 on the chip mainly provides the driving voltage for the upper switch tube inside the chip.

[0048] The logic control board is provided with a yarn breakage information monitoring and processing circuit and a winding control circuit. The yarn breakage information monitoring and processing circuit is used to control the winding unit to stop when the yarn breaks, and the winding control circuit is used to control the start and stop of the winding unit and the control of the yarn winding fixed length.

[0049] Specifically, Figure 3 As shown, the yarn-broken information monitoring and processing circuit includes a yarn-broken sensor interface CN, an isolation optocoupler U12, and a relay RELAY4, which are respectively connected to a plurality of photoelectric switches. After the plurality of photoelectric switches are connected to the corresponding sensor interface CN, they are connected to the No. 3 interface of the isolation optocoupler U12. The No. 1 interface and the No. 6 interface of the isolation optocoupler U12 are respectively connected to resistors R14 and R15. The end of the resistor R14 away from the isolation optocoupler U12 is connected to a filter capacitor, which is used for decoupling and filtering of the circuit power supply to improve the power supply quality and anti-interference ability. The isolation optocoupler U12, the resistor R14, and the resistor R15 constitute an optocoupler signal isolation conversion circuit. A relay drive circuit is connected between the No. 6 interface of the isolation optocoupler U12 and the relay RELAY4.

[0050] The relay drive circuit includes resistor R19, resistor R18, transistor Q5 and diode U17. One end of resistor R19 is connected to interface No. 6 of the isolation optocoupler U12, and the other end outputs a 12V voltage through resistor R18. R18 is also connected in parallel with transistor Q5. Transistor Q5 is a PNP transistor, whose base B is connected to R19, emitter E is connected to the output side of resistor R18, collector C is connected to relay RELAY4, and diode U17 is connected in parallel to relay RELAY4.

[0051] The RELAY4 relay transmits the signal to the inverter, controls whether the inverter stops, and then the master control system can collect signals through RS485 and display them on the master control panel, thereby realizing the yarn break detection and yarn break parking functions. When the yarn break parking drive signal is received, the normally open contacts of the relay are closed, and the pins of the two normally open contacts are connected to the stop signal of the inverter. Therefore, when the yarn break parking signal is activated, the paralleling machine inverter receives the stop signal, and the paralleling machine realizes the yarn break parking function.

[0052] like Figure 4 As shown, the winding control circuit includes a parking indicator light circuit and an interlock circuit.

[0053] The interlocking circuit includes a start signal receiver U30 connected to the start button on the second control panel, a stop signal receiver SW1 connected to the stop button on the second control panel, a start press signal collection switch U29 linked to U30, a start relay RELAY5, a stop relay RELAY6 and a diode U28.

[0054] The start signal receiver U30 is connected to the start relay RELAY5, the stop indicator light circuit is connected in parallel to the start relay RELAY5, the No. 2 interface of the stop signal receiver SW1 is connected to the stop relay RELAY6, and its No. 3 interface is connected to the fixed length warning light. A diode U28 is connected in parallel to the stop relay RELAY6. Among them, a line connected to the configuration screen host computer is set between the No. 2 interface of the start signal receiver U30 and the start relay RELAY5, and the connection with the configuration screen host computer is used to remotely control the start of the drive roller 2; a line connected to the meter and the configuration screen host computer is set between the No. 2 interface of the stop signal receiver SW1 and the stop relay RELAY6, and the connection with the meter is used to set the winding fixed length, and the connection with the configuration screen host computer is used to remotely control the stop of the drive roller 2.

[0055] When U30 is pressed, U29 is also pressed synchronously, thereby realizing the start signal detection. When the start button U30 is pressed, the start relay RELAY5 is energized, and the normally open contact is connected in series to the normally closed contact in the parking relay RELAY6; the other pair of normally open pins of the start relay RELAY5 is connected to the inverter switch signal; after the start relay RELAY5 is energized, the normally open contact of the start relay RELAY5 is closed, and the normally open contact is connected in series to the long arm contact of the parking relay RELAY6 to realize self-locking;

[0056] When the car is parked, SW1 is pressed, causing the coil of the parking relay RELAY6 connected in series to be energized, causing the normally closed contact of the parking relay RELAY6 (the two pins are connected in series to the coil circuit of the RELAY5 relay) to be disconnected, causing the coil of the starting relay RELAY5 to be de-energized, and then the normally open contact of the inverter switch to be disconnected, thereby realizing the parking function.

[0057] Furthermore, the parking indicator light circuit includes a resistor R32, an optical coupler U26, a diode U27, a resistor R30, a resistor R35, a resistor R37, a transistor Q7, an LED1, and a resistor R28. The optical coupler U26 is used to detect the power supply status of the start relay RELAY5, so as to determine whether the status of the device is running or stopped. The optical coupler U26 is connected in parallel to the start relay RELAY5, the interface No. 1 of the optical coupler U26 is connected to the start relay RELAY5 through the resistor R32, the interface No. 3 of the optical coupler U26 is directly connected to the start relay RELAY5, the interface No. 4 of the optical coupler U26 is grounded, and the resistors R30 and R35 are connected to the interface No. 6.

[0058] One end of the diode U27 is connected between the resistor R32 and the starting relay RELAY5, and the other end is connected between the interface No. 3 of the optocoupler U26 and the starting relay RELAY5; the transistor Q7 is an NPN transistor, one end of the resistor R35 is connected to the interface No. 6 of the optocoupler U26, and the other end is connected to the base B of the transistor Q7, the emitter E of the transistor Q7 is connected to the resistor 37, the end of the resistor R37 away from the emitter E of the transistor Q7 is connected between the resistor R35 and the base B of the transistor Q7, the collector C of the transistor Q7 is connected to LED1, and the resistor R28 is connected to the end of LED1 away from the transistor Q7.

[0059] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A high-speed doubling machine control system for yarn production, characterized in that: include, Master control system, and A plurality of winding units, wherein the winding units are used to wind a plurality of spun yarns into a spun yarn; Sub-control units, the number of which is adapted to the number of winding units, one sub-control unit is connected to one winding unit, and a plurality of sub-control units are all connected to the main control system, and the sub-control units are used to control the winding length of each winding unit, receive a line break signal and control the winding unit to stop.

2. The high-speed doubling machine control system for yarn production according to claim 1, characterized in that: The sub-control unit includes a first control board, a second control board and a logic control board, and the logic control board is used to perform logic operation control on the first control board, the second control board and the winding unit corresponding to the sub-control unit.

3. The high-speed doubling machine control system for yarn production according to claim 2, characterized in that: The first control board is provided with a meter counter, a fixed-length alarm light and a reset button, the meter counter is used to monitor the winding length of the roving in the winding unit, and the meter counter, the fixed-length alarm light and the reset button are all connected to the logic control board.

4. The high-speed doubling machine control system for yarn production according to claim 2, characterized in that: The second control panel is provided with a start button, a stop button and a disconnection alarm light, and the start button, the stop button and the disconnection alarm light are all connected to the logic control panel.

5. The high-speed doubling machine control system for yarn production according to claim 3, characterized in that: The winding unit comprises a driving roller (2), a yarn roller (1) and a yarn guide shuttle (3); the axial direction of the driving roller (2) is parallel to the axial direction of the yarn roller (1); the driving roller (2) abuts against the yarn roller (1) and drives the yarn roller (1) to rotate through rolling friction; a Hall sensor is provided on the driving roller (2) for detecting the linear speed and number of rotations of the driving roller (2); the Hall sensor is connected to a meter.

6. The high-speed doubling machine control system for yarn production according to claim 5, characterized in that: A thread break self-locking control switch is arranged between the yarn guide shuttle (3) and the yarn rollers of the multiple yarns. The thread break self-locking control switch is used to detect whether the fine yarn is broken at the yarn guide shuttle (3). A photoelectric switch is arranged on the yarn roller of each yarn. The thread break self-locking control switch and the photoelectric switch on the yarn roller of each yarn are electrically connected to the logic control board.

7. The high-speed doubling machine control system for yarn production according to claim 2, characterized in that: The logic control board is provided with a winding control circuit, the winding control circuit includes a parking indicator light circuit and an interlocking circuit, and the winding control circuit is used to control the start and stop of the winding unit and the fixed length of the yarn winding.

8. The high-speed doubling machine control system for yarn production according to claim 7, characterized in that: The interlocking circuit includes a start signal receiver U30 connected to the start button on the second control panel, a parking signal receiver SW1 connected to the stop button on the second control panel, a start-pressed signal collection switch U29 linked to U30, a start relay RELAY5, a parking relay RELAY6 and a diode U28, the start signal receiver U30 is connected to the start relay RELAY5, the parking indicator light circuit is connected in parallel to the start relay RELAY5, the interface No. 2 of the parking signal receiver SW1 is connected to the parking relay RELAY6, and its interface No. 3 is connected to the fixed-length warning light; a diode U28 is connected in parallel to the parking relay RELAY6, wherein a line connected to the configuration screen host computer is arranged between the interface No. 2 of the start signal receiver U30 and the start relay RELAY5; a line connected to the meter and the configuration screen host computer is arranged between the interface No. 2 of the parking signal receiver SW1 and the parking relay RELAY6.

9. The high-speed doubling machine control system for yarn production according to claim 7, characterized in that: The parking indicator light circuit includes a resistor R32, an optical coupler U26, a diode U27, a resistor R30, a resistor R35, a resistor R37, a transistor Q7, an LED1 and a resistor R28. The optical coupler U26 is connected in parallel to the start relay RELAY5. Interface No. 1 of the optical coupler U26 is connected to the start relay RELAY5 through the resistor R32. Interface No. 3 of 26 is directly connected to the starting relay RELAY5, interface No. 4 of the optocoupler U26 is grounded, resistors R30 and R35 are connected to interface No. 6, one end of the diode U27 is connected between resistor R32 and the starting relay RELAY5, and the other end is connected between interface No. 3 of the optocoupler U26 and the starting relay RELAY5; the transistor Q7 is an NPN transistor, one end of the resistor R35 is connected to interface No. 6 of the optocoupler U26, and the other end is connected to the base B of the transistor Q7, the emitter E of the transistor Q7 is connected to resistor 37, the end of the resistor R37 away from the emitter E of the transistor Q7 is connected between resistor R35 and the base B of the transistor Q7, the collector C of the transistor Q7 is connected to LED1, and the resistor R28 is connected to the end of LED1 away from the transistor Q7.

10. The high-speed doubling machine control system for yarn production according to claim 1, characterized in that: The master control system is provided with a main power supply module, and the main power supply module is provided with a power supply circuit, which includes a power supply interface U22, a protection circuit and a DC / DC power supply conversion circuit. The power supply interface U22 is connected to an external 24V DC power supply, and the power supply protection circuit includes a self-recovery fuse U19 and an anti-reverse diode U20. One end of the self-recovery fuse U19 is connected to the power supply interface U22, and the other end is connected to the positive electrode of the anti-reverse diode U20. The negative electrode of the anti-reverse diode U20 is connected to the DC / DC power supply conversion circuit; the DC / DC power supply conversion circuit includes a buck converter U25, a capacitor C22, an external boost capacitor C19, a capacitor C23, a resistor R36, a resistor R26, a resistor R27 and an inductor L1. The pin VIN on the buck converter U25 is a power input interface connected to the anti-reverse diode U20. The capacitor C22 is connected between the pin VIN of the buck converter U25 and the anti-reverse diode One end of the resistor R36 is connected to the enable pin EN of the buck converter U25, and the other end is connected between the capacitor C22 and the pin VIN. One end of the inductor L1 is directly connected to the switch control pin SW of the buck converter U25, and the other end outputs a 12V current and is connected to the positive electrode of the capacitor C23. One end of the external boost capacitor C19 is connected to the BST pin of the buck converter U25, and the other end is connected between the pin SW of the buck converter U25 and the inductor L1. One end of the resistor R27 is connected to the pin FB of the buck converter U25, and the other end is connected to the output side of the inductor L1. One end of the resistor R26 is connected to the ground pin GND, and the other end is connected to the resistor R27.

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