CN117845404A - A new type of direct drive air jet loom electronic control system - Google Patents

Abstract

The invention provides a novel direct-drive air-jet loom electric control system, which comprises a main control module: generating an execution instruction for the parameter information; and a driving module: providing voltage for the loom to drive the loom to operate; parameter configuration module: presetting internal configuration parameters of a loom; external signal module one: determining the rotation angle of the loom and converting the angle information; external signal module II: identifying faults in the running process, and generating a fault stopping signal and corresponding user operation instruction information; weft insertion and yarn release module: according to the internal configuration parameters and the external signal parameters, the rotation and yarn releasing actions of the loom are completed by combining the angle information; and an external signal module III: the method is used for displaying weft detection waveforms in the running process in real time, so as to obtain the pulse number which is used as a judging basis for judging whether the weft insertion of the loom is successful, solve the problem that weft is not blown in place in the high-speed working process of the loom, and obtain the beneficial effect of timely judging whether the weft is in place in the high-speed weaving process.

Description

A new type of direct drive air jet loom electronic control system

Technical Field

The invention relates to the technical field of loom control systems, and in particular to a novel direct-drive air-jet loom electric control system.

Background technique

As my country's economy shifts from high-speed growth to a new stage of high-quality development, the wide application of air-jet looms has been gradually accepted by customers. Due to the large coverage of the textile industry, the diverse weaving environment and varieties, how to continue to maintain and enhance the competitive advantages of the filament weaving industry and even the textile industry, and achieve high-quality development, many users choose air-jet looms for low-cost weaving. However, the existing air-jet looms vibrate violently, the loom speed is mostly 500r/min, the efficiency is low, and there are many yarn breakage phenomena, which reduces the grade of textiles and indirectly affects the quality of the products.

At a time when the entire industry is pursuing high-quality development, the relevant mechanical equipment in the jet weaving industry aims to improve the level of scientific and technological innovation, improve production efficiency, improve equipment stability, save energy and reduce consumption, and promote green environmental protection. It continues to develop new electronic control systems and continuously promote the digitalization, intelligence, and green development of the filament weaving industry.

During the operation of the loom, the weft yarns are woven onto the warp yarns one by one. The weft yarns are blown from one end of the weaving surface along a wire groove to the other end by an air blowing device. There are generally two weft detectors at the other end, the first one is used to detect whether the weft yarns are blown into place, and the other one is used to cut off the judgment. However, the weft yarns are often not blown into place during the weaving process. Therefore, how to achieve the blowing of the weft yarns into place during the high-speed operation of the loom is a problem that needs to be solved urgently.

Summary of the invention

The invention provides a novel direct-drive air jet loom electric control system, which is used to solve the defect in the prior art that the weft yarn cannot be blown into place during the high-speed operation of the loom.

On the one hand, the present invention provides a novel direct-drive air-jet loom electronic control system, comprising:

Main control module: used to obtain loom parameter information and generate execution instructions according to the parameter information, wherein the parameter information includes internal configuration parameters and external signal parameters;

Driving module: connected to the main control module, used to provide voltage to the loom and drive the loom to operate;

Parameter configuration module: connected to the main control module, used to preset the internal configuration parameters of the loom and send the internal configuration parameters to the main control module;

External signal module 1: It is connected to the main control module and is used to obtain pulse signals through an encoder to determine the rotation angle of the loom, and convert the angle information into the signal type required by the main control module and send it to the main control module to obtain the converted angle information;

External signal module 2: connected to the main control module, used to identify faults in the operation process, generate fault stop signals and corresponding user operation instruction information, convert the fault stop signals and user operation instruction information into the signal types required by the main control module and send them to the main control module, and obtain the converted fault stop signals and converted user operation instruction information;

Weft insertion and yarn placing module: it is connected to the main control module and is used to complete the rotation of the loom and the yarn placing action according to the internal configuration parameters, the external signal parameters and the angle information;

External signal module three: It is connected to the main control module and is used to display the weft detection waveform in real time during operation, obtain the number of pulses as a basis for judging whether the weft insertion of the loom is successful, and send the number of pulses to the main control module.

According to a novel direct-drive air-jet loom electric control system provided by the present invention, the main control module comprises:

Signal acquisition unit: it is arranged outside the main control module and is used to acquire internal configuration parameters, converted angle information, converted fault parking signal and converted user operation instruction information and pulse number;

Instruction generating unit: it is connected to the signal acquiring unit and is used to generate corresponding instructions according to the internal configuration parameters, the converted angle information, the converted fault parking signal and the converted user operation instruction information and pulse number.

According to a novel direct-drive air-jet loom electric control system provided by the present invention, the driving module comprises:

Power supply unit: connected to the main control module, used to convert the electric energy in the external power grid into a voltage and current suitable for the operation of the loom;

Direct drive frequency conversion unit: It is connected to the power supply unit and is used to control the direct drive motor to perform processing actions according to the requirements of the loom. The processing actions include switching between industrial frequency and variable frequency modes, conversion between star and triangle connection modes, and adjustment of forward and reverse directions.

According to a novel direct-drive air-jet loom electric control system provided by the present invention, the parameter configuration module comprises:

Parameter setting unit: connected to the main control unit, used to set internal configuration parameters and display internal configuration parameters and external signal parameters in real time;

A first connection unit: connected to the parameter setting unit and the main control unit, used to preset the internal configuration parameters of the loom and send the internal configuration parameters to the main control module;

The second connection unit is connected with the parameter setting unit and the weft insertion and yarn release module, and is used for configuring and adjusting the parameters of the weft insertion and yarn release module during the weft insertion process.

According to a novel direct-drive air-jet loom electric control system provided by the present invention, the external signal module 1 comprises:

A pulse signal processing unit is arranged inside the external signal module 1, and is used to obtain a pulse signal through an encoder, and to determine the rotation angle of the loom by counting and processing the pulse signal;

Conversion unit 1: It is connected to the pulse signal processing unit and is used to convert the angle information into the signal type required by the main control module and then send it to the main control module to obtain the converted angle information.

According to a novel direct-drive air-jet loom electric control system provided by the present invention, the external signal module 2 comprises:

Fault identification unit: arranged inside the external signal module 2, used to monitor the running state of the loom, obtain key parameter signals through the encoder, compare the key parameter signals with the key parameter signals under preset normal working conditions, and if the key parameter signals exceed the set threshold range, it is judged that a fault occurs;

User operation unit: arranged inside the external signal module 2, used to generate corresponding user operation instruction information according to the user's operation;

Conversion unit 2: It is connected to the fault identification unit and the user operation unit, and is used to convert the fault parking signal and the user operation instruction information into the signal type required by the main control module and then send them to the main control module to obtain the converted fault parking signal and the converted user operation instruction information.

According to a novel direct-drive air-jet loom electronic control system provided by the present invention, the weft insertion and yarn placing module comprises:

Weft storage unit: connected to the main control module, used to store weft and supply weft by controlling the tension of the yarn;

Weft insertion unit: It is connected to the weft storage unit and is used to introduce the weft thread into the loom according to the internal configuration parameters, the external signal parameters and the angle information to complete the rotation and yarn release actions.

According to a novel direct-drive air-jet loom electric control system provided by the present invention, the weft storage unit comprises:

Power supply unit: it is arranged inside the weft storage unit, used to supply power to the weft storage unit and process the signal transmitted to the weft storage unit;

Tension adjustment unit: It is connected to the power supply unit and is used to control the yarn tension within a set range.

According to a novel direct-drive air-jet loom electronic control system provided by the present invention, the external signal module three comprises:

Signal detection unit: It is arranged inside the external signal module 3, and is used to display the weft detection waveform in real time during operation, obtain the pulse number as the basis for judging whether the weft insertion of the loom is successful, and send the pulse number to the main control module;

Signal filtering unit: It is connected to the signal detection unit and is used to detect and filter the weft detection interference signal during the operation of the loom to achieve stability when the loom runs at ultra-high speed.

According to a novel direct-drive air-jet loom electronic control system provided by the present invention, a warp let-off unit: connected to the main control module, for controlling and transmitting the warp to the loom;

Warp reel unit: connected to the main control module, used to wind the warp and adjust and control the reel running speed to match the loom working speed;

Detection unit: connected to the main control module, used to monitor abnormal operation status of the warp line.

The novel direct-drive jet loom electronic control system provided by the present invention comprises a main control module: generating an execution instruction according to parameter information; a drive module: providing voltage to the loom to drive the loom to operate; a parameter configuration module: presetting internal configuration parameters of the loom and sending the internal configuration parameters to the main control module; an external signal module one: determining the rotation angle of the loom and converting the angle information; an external signal module two: identifying faults in the operation process, generating a fault stop signal and corresponding user operation instruction information; a weft insertion and yarn release module: completing the rotation and yarn release actions of the loom according to the internal configuration parameters, external signal parameters and angle information; an external signal module three: being used for real-time displaying the weft detection waveform in the operation process, obtaining the pulse number as a basis for judging whether the weft insertion of the loom is successful, and sending the pulse number to the main control module, thereby solving the problem that the weft yarn cannot be blown into place during the high-speed operation of the loom, and achieving the beneficial effect of timely judging whether the weft yarn is in place during the high-speed weaving process.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

FIG. 1 is a structural diagram of an electric control system for a novel direct-drive air-jet loom provided in an embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

FIG. 1 is a structural diagram of an electric control system for a novel direct-drive air-jet loom provided in an embodiment of the present invention.

As shown in FIG1 , a novel direct-drive air jet loom electronic control system provided by an embodiment of the present invention comprises:

Main control module: used to obtain loom parameter information and generate execution instructions according to the parameter information, wherein the parameter information includes internal configuration parameters and external signal parameters;

Driving module: connected to the main control module, used to provide voltage to the loom and drive the loom to operate;

Parameter configuration module: connected to the main control module, used to preset the internal configuration parameters of the loom and send the internal configuration parameters to the main control module;

External signal module 1: It is connected to the main control module and is used to obtain pulse signals through an encoder to determine the rotation angle of the loom, and convert the angle information into the signal type required by the main control module and send it to the main control module to obtain the converted angle information;

External signal module 2: connected to the main control module, used to identify faults in the operation process, generate fault stop signals and corresponding user operation instruction information, convert the fault stop signals and user operation instruction information into the signal types required by the main control module and send them to the main control module, and obtain the converted fault stop signals and converted user operation instruction information;

Weft insertion and yarn placing module: it is connected to the main control module and is used to complete the rotation of the loom and the yarn placing action according to the internal configuration parameters, the external signal parameters and the angle information;

External signal module three: it is connected to the main control module, and is used to display the weft detection waveform in real time during operation, obtain the pulse number as the basis for judging whether the weft insertion of the loom is successful, and send the pulse number to the main control module;

Operation control module: It is connected to the main control module and is used to control and adjust the tension of the yarn during operation, ensure that the tension is within a predetermined range, and generate a feedback signal to send to the main control module.

It should be noted that the working principle of this embodiment is as follows: before starting, the loom obtains internal configuration parameters and external signal parameters, and releases the brake disc after confirming that the internal configuration parameters meet all starting conditions. The main control module generates a start command, controls the start of the drive module to drive the loom to operate, and controls the air jet loom to rotate according to the angle information in the external signal parameter according to the angle given by the incremental encoder.

At this time, the jet loom runs at ultra-high speed while the main control module selects colors, then controls the weft insertion and yarn release module, selects the corresponding path, and then after a certain angle, gives the weft insertion and yarn release module a yarn release signal, and the weft insertion and yarn release module inserts the weft. After the loom turns to the corresponding angle, the main control module determines whether the weft insertion is successful through the signal given by the weft detection unit. If it is unsuccessful, it will stop, and if it is successful, it will continue to run. During the high-speed operation, the control module uses a control algorithm to make the tension converge quickly, so that the tension fluctuation of complex fabrics is within a reasonable range, eliminating hidden gears, built-in fabric swing, fabric avoidance, stop prying, weft compensation, time compensation and other perfect parking gear elimination functions, quickly and timely feedback the signal to the main control module, and the main control module synchronously sends a signal to control the rapid follow-up of the warp feeding and winding device, so as to realize the ultra-high-speed and stable operation of the jet loom. When the main control unit receives the stop signal, the loom stops the motor, controls the brake disc to engage, brakes, and stops the loom according to the set parking mode and angle according to the parameter settings.

In order to further optimize the above embodiment, a new direct-drive air jet loom electronic control system, a main control module, includes:

Signal acquisition unit: it is arranged outside the main control module and is used to acquire internal configuration parameters, converted angle information, converted fault parking signal and converted user operation instruction information and pulse number;

Instruction generation unit: It is connected to the signal acquisition unit and is used to generate corresponding instructions according to the internal configuration parameters, the converted angle information, the converted fault parking signal and the converted user operation instruction information and pulse number.

The main control module adopts ARM control board, which can complete various control actions of the loom.

It should be noted that the signal acquisition unit is a component set outside the main control module, and its main function is to obtain internal configuration parameters, converted angle information, converted fault stop signal, converted user operation instruction information and pulse number, etc. The internal configuration parameters are pre-set parameters used to define the working mode and characteristics of the loom. The signal acquisition unit can read these parameters for subsequent processing and command generation. The converted angle information comes from devices such as encoders and is used to monitor the angle position of the loom. The signal acquisition unit can convert and process the original angle information to obtain accurate angle data. The fault stop signal refers to a signal sent when the loom fails or needs to stop. The signal acquisition unit can receive and convert these signals so that they can be recognized and processed by the main control module. The user operation instruction information is an instruction input by operating the control panel or other input device of the loom. The signal acquisition unit can obtain and convert these instruction information for the main control module to parse and execute corresponding operations.

In addition, the signal acquisition unit can also obtain the number of pulses generated by the loom, which is used to calculate the detection waveform of the weft yarn or other related applications, and judge whether the weft insertion of the loom is successful by the number of pulses.

The instruction generation unit is connected to the signal acquisition unit, and generates corresponding instructions according to the acquired internal configuration parameters, converted angle information, converted fault stop signal, converted user operation instruction information and pulse number, etc. These instructions will be sent to the main control module to realize the control and adjustment of the loom.

In order to further optimize the above embodiment, a novel direct-drive air jet loom electronic control system, the drive module comprises:

Power supply unit: connected to the main control module, used to convert the electric energy in the external power grid into a voltage and current suitable for the operation of the loom;

Direct drive frequency conversion unit: It is connected to the power supply unit and is used to control the direct drive motor to perform processing actions according to the requirements of the loom. The processing actions include switching between industrial frequency and variable frequency modes, conversion between star and triangle connection modes, and adjustment of forward and reverse directions.

It should be noted that in the drive module, the power board is responsible for converting the electrical energy in the external power supply or the power grid into a voltage and current suitable for the operation of the loom. It usually includes a power input interface, a power conversion circuit, a filter circuit, a voltage stabilization circuit, and a protection circuit.

The power board provides stable power output by transforming, converting and rectifying the electric energy to meet the working requirements of each part of the loom system. These output power can be used to drive various actuators of the loom, such as motors, cylinders, transmission devices, etc.

In addition to providing power output, the power board also usually has some protection functions, such as overload protection, overcurrent protection, overvoltage protection, etc., to ensure that the loom system operates within a safe operating range. When an abnormal situation occurs, the power board can automatically stop the power output to avoid equipment damage or personal injury.

The direct drive frequency conversion unit adopts a high-efficiency and low-consumption direct drive system. The high-efficiency range of weaving speed is 300-1200R/min. The brake disc and belt pulley are eliminated, reducing most of the transmission losses. The system energy saving rate is as high as about 20%, and the operation is stable. The electronic inertia technology is adopted, the speed fluctuation is small, the speed regulation is convenient, and the speed can be changed steplessly. The magnetic steel that can withstand high temperature of 150 degrees is selected and will never be demagnetized.

The switching between the power frequency and variable frequency modes of the direct drive frequency conversion unit means that in the power frequency mode, the operating frequency of the motor is fixed, usually 50Hz or 60Hz. In the variable frequency mode, the operating frequency of the motor can be adjusted by the direct drive frequency conversion unit to meet different process requirements. Switching between the power frequency and variable frequency modes usually needs to be completed through the operation interface or control signal.

The star and delta connection conversion refers to the way the windings are connected. In star connection, one terminal of each phase winding of the motor is connected to a common neutral point. In delta connection, the two terminals of each phase winding are directly connected.

The forward and reverse direction adjustment includes: forward means that the motor rotates in the set direction, while reverse means that the motor rotates in the opposite direction. The forward and reverse direction adjustment can usually be achieved through the control signal of the direct drive frequency conversion unit.

The selection and adjustment of these processing actions can be achieved through the direct drive frequency conversion unit to meet the requirements of the loom under different process and operating conditions.

In order to further optimize the above embodiment, a novel direct-drive air jet loom electronic control system, the parameter configuration module includes:

Parameter setting unit: connected to the main control unit, used to set internal configuration parameters and display internal configuration parameters and external signal parameters in real time;

A first connection unit: connected to the parameter setting unit and the main control unit, used to preset the internal configuration parameters of the loom and send the internal configuration parameters to the main control module;

The second connection unit is connected with the parameter setting unit and the weft insertion and yarn release module, and is used for configuring and adjusting the parameters of the weft insertion and yarn release module during the weft insertion process.

It should be noted that the first connection unit refers to the high-performance HMI touch screen connected to the ARM control board via RS-232. This connection method can easily set various parameters of the loom. RS-232 is a common serial communication interface that allows data transmission and communication between the touch screen and the control board. Through this connection, the operator can use the interface on the touch screen to easily set and adjust the parameters of the loom, such as operating frequency, speed, tension, etc.

The second connection unit means that the high-performance HMI touch screen can also be connected to the weft feeder via RS-485. RS-485 is also a common serial communication interface with a long transmission distance and high anti-interference ability. Through this connection, the operator can easily set the parameters of the weft feeder, such as thread density, weft tension, winding length, etc.

These two connection methods make the high-performance HMI touch screen a convenient tool for loom operation and parameter setting. Operators can clearly understand and adjust various parameters of the loom through the intuitive touch screen interface, improving operating efficiency and accuracy. At the same time, through the connection with the ARM control board and the weft feeder, more flexible and convenient loom control and parameter setting are achieved.

In order to further optimize the above embodiment, a novel direct-drive air jet loom electronic control system, the external signal module 1, comprises:

A pulse signal processing unit is arranged inside the external signal module 1, and is used to obtain a pulse signal through an encoder, and to determine the rotation angle of the loom by counting and processing the pulse signal;

Conversion unit 1: It is connected to the pulse signal processing unit, converts the angle information into the signal type required by the main control module and sends it to the main control module to obtain the converted angle information.

It should be noted that the incremental encoder determines the position and movement of an object or device by outputting pulse signals. It usually consists of an optical or magnetic sensor and a rotating disk. There are a series of equally spaced scale lines or magnetic marks on the rotating disk. When the rotating disk moves with the rotation of the object or device, the sensor detects these scale lines or magnetic marks and generates corresponding pulse signals.

By counting and processing the pulse signals, the rotation angle of the loom can be determined. Each pulse signal corresponds to a tiny angle change on the rotating disk, so by counting the number of pulses, the angular position of the loom can be accurately determined.

The first conversion unit connects the incremental encoder and the main control module through a wiring board. The wiring board usually acts as an intermediary to convert the output signal of the encoder into the signal type and level required by the main control module. This can simplify the connection wiring, provide more flexible interface selection, and provide convenience for signal processing and debugging.

In order to further optimize the above embodiment, a novel direct-drive air jet loom electronic control system, the external signal module 2, comprises:

Fault identification unit: arranged inside the external signal module 2, used to monitor the running state of the loom, obtain key parameter signals through the encoder, compare the key parameter signals with the key parameter signals under preset normal working conditions, and if the key parameter signals exceed the set threshold range, it is judged that a fault occurs;

User operation unit: arranged inside the external signal module 2, used to generate corresponding user operation instruction information according to the user's operation;

Conversion unit 2: It is connected to the fault identification unit and the user operation unit, and is used to convert the fault parking signal and the user operation instruction information into the signal type required by the main control module and then send them to the main control module to obtain the converted fault parking signal and the converted user operation instruction information.

It should be noted that the fault detection system monitors the operating status of the loom or other equipment, and obtains key parameters and signals through sensors, encoders or other detection devices. These parameters and signals will be compared with the preset normal working conditions. If there is an abnormality or exceeds the threshold range, the system will determine that a fault has occurred. Once a fault is detected, the fault handling system will generate a fault stop signal to notify the control system or main control module to stop running. At the same time, the system will also generate corresponding user operation instruction information to provide the operator with necessary fault information and handling suggestions. These fault stop signals and user operation instruction information can be displayed to the operator through display screens, alarm lights, sound prompts, etc. Based on the information received, the operator can take corresponding operational measures, such as handling minor faults, replacing parts, contacting maintenance personnel, etc., to ensure the safety and normal operation of the equipment.

In order to further optimize the above embodiment, a novel direct-drive air jet loom electronic control system, the weft insertion and yarn placing module comprises:

Weft storage unit: connected to the main control module, used to store weft and supply weft by controlling the tension of the yarn;

Weft insertion unit: It is connected to the weft storage unit and is used to introduce the weft into the loom according to the internal configuration parameters, the external signal parameters, and the angle information to complete the rotation and yarn release actions.

The weft feeder usually consists of one or more spindles, each of which holds the yarn. The yarn is unwound from the spindles and introduced into the loom via the weft insertion device.

The main function of the weft feeder is to provide yarn and ensure that the yarn can be smoothly supplied to the loom. It can control the tension of the yarn through the tension adjustment device to ensure that the yarn maintains appropriate tension during the weft insertion process. In addition, the weft feeder can also be equipped with an automatic stop device. When the yarn runs out or an abnormal situation occurs, the yarn supply can be stopped to avoid affecting the weaving quality due to yarn breakage or other failures.

In order to further optimize the above embodiment, a novel direct-drive air-jet loom electronic control system, the weft storage unit, comprises:

Power supply unit: it is arranged inside the weft storage unit, used to supply power to the weft storage unit and process the signal transmitted to the weft storage unit;

Tension adjustment unit: It is connected to the power supply unit and is used to control the yarn tension within a set range.

It should be noted that the discrete tension PID control algorithm is based on the tension feedback signal provided by the sensor and calculates the control signal according to the set target tension value. The algorithm adjusts the tension device to achieve precise tension control based on the current tension error (the difference between the actual tension and the target tension), the integral term (the accumulated error over the past period of time) and the differential term (the rate of change of the error).

Through parameter optimization, iterative calculation and immediate response, the discrete tension PID control algorithm can quickly converge to the set target tension value and suppress fluctuations in fabric tension. This helps to eliminate the generation of hidden defects, that is, potential defects in the fabric caused by unstable tension.

In order to further optimize the above embodiment, a novel direct-drive air jet loom electronic control system, the external signal module three comprises:

Signal detection unit: It is arranged inside the external signal module 3, and is used to display the weft detection waveform in real time during operation, obtain the pulse number as the basis for judging whether the weft insertion of the loom is successful, and send the pulse number to the main control module;

Signal filtering unit: It is connected to the signal detection unit and is used to detect and filter the weft detection interference signal during the operation of the loom to achieve stability when the loom runs at ultra-high speed.

It should be noted that the weft detection unit adopts digital weft detection technology to ensure the stable operation of the equipment. It has built-in digital weft detection technology, which can display the weft detection waveform in real time and detect the number of pulses generated by the weft yarn of the loom, which serves as the basis for the loom to judge whether the weft insertion is successful.

In order to further optimize the above embodiment, a new direct-drive air-jet loom electronic control system is provided.

Warp letting unit: connected to the main control module, used to control and transmit the warp to the loom;

Warp reel unit: connected to the main control module, used to wind the warp and adjust and control the reel running speed to match the loom working speed;

Detection unit: connected to the main control module, used to monitor abnormal operation status of the warp line.

It should be noted that the main control module can control and transmit the warp by controlling the tension device or the yarn guide plate in the warp feeding unit, so as to ensure the stable guidance and operation of the warp on the loom.

The main control module can adjust the running speed of the reel by controlling the warp reel unit to ensure that the warp reel can wind up the warp as needed.

The detection unit includes sensors or other detection devices to monitor the tension, breakage, slack or other abnormal conditions of the warp. The main control module can receive and analyze these detection signals and take corresponding measures as needed, such as issuing an alarm, shutting down or adjusting process parameters.

When starting, the loom releases the brake disc after confirming that all starting conditions are met, and controls the operation of the direct drive motor through the direct drive frequency conversion unit. According to the angle given by the incremental encoder, the power/variable frequency and star/delta switching are performed.

During the ultra-high-speed operation of the air jet loom, the main control unit selects colors according to the angle given by the incremental encoder, and then controls the weft insertion unit to select the corresponding path. After a certain angle, the weft storage device releases the yarn signal, and the weft storage device releases the yarn and the loom inserts the weft. After the loom turns to the corresponding angle, the main control module determines whether the weft insertion is successful through the signal given by the weft detection unit. If it is unsuccessful, it will stop, and if it is successful, it will continue to run. During the high-speed operation, the high-precision tension unit adopts an advanced discrete tension PID control algorithm to make the tension converge quickly, so that the tension fluctuation of complex fabrics is within a reasonable range, eliminating hidden gears, built-in fabric swing, fabric avoidance, stop prying, weft compensation, time compensation and other perfect parking gear elimination functions, quickly and timely feedback the signal to the main control module, and the main control module synchronously sends a signal to control the rapid follow-up of the warp feeding and winding device, so as to realize the ultra-high-speed and stable operation of the air jet loom. When the main control module receives the stop signal, the loom stops the motor, controls the brake disc to engage, brakes, and stops the loom according to the set parking mode and angle according to the parameter settings.

The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art may understand and implement it without creative work.

Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM/RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A novel direct-drive air jet loom electronic control system, characterized by comprising: Main control module: used to obtain loom parameter information and generate execution instructions according to the parameter information, wherein the parameter information includes internal configuration parameters and external signal parameters; Driving module: connected to the main control module, used to provide voltage to the loom and drive the loom to operate; Parameter configuration module: connected to the main control module, used to preset the internal configuration parameters of the loom and send the internal configuration parameters to the main control module; External signal module 1: It is connected to the main control module and is used to obtain pulse signals through an encoder to determine the rotation angle of the loom, and convert the angle information into the signal type required by the main control module and send it to the main control module to obtain the converted angle information; External signal module 2: connected to the main control module, used to identify faults in the operation process, generate fault stop signals and corresponding user operation instruction information, convert the fault stop signals and user operation instruction information into the signal types required by the main control module and send them to the main control module, and obtain the converted fault stop signals and converted user operation instruction information; Weft insertion and yarn placing module: it is connected to the main control module and is used to complete the rotation of the loom and the yarn placing action according to the internal configuration parameters, the external signal parameters and the angle information; External signal module three: It is connected to the main control module and is used to display the weft detection waveform during operation in real time, obtain the pulse number as the basis for judging whether the weft insertion of the loom is successful, and send the pulse number to the main control module. 2. The novel direct-drive air-jet loom electronic control system according to claim 1 is characterized in that the main control module comprises: Signal acquisition unit: it is arranged outside the main control module and is used to acquire internal configuration parameters, converted angle information, converted fault parking signal and converted user operation instruction information and pulse number; Instruction generating unit: it is connected to the signal acquiring unit and is used to generate corresponding instructions according to the internal configuration parameters, the converted angle information, the converted fault parking signal and the converted user operation instruction information and pulse number. 3. The novel direct-drive air jet loom electronic control system according to claim 1, characterized in that the driving module comprises: Power supply unit: connected to the main control module, used to convert the electric energy in the external power grid into a voltage and current suitable for the operation of the loom; Direct drive frequency conversion unit: It is connected to the power supply unit and is used to control the direct drive motor to perform processing actions according to the requirements of the loom. The processing actions include switching between industrial frequency and variable frequency modes, conversion between star and triangle connection modes, and adjustment of forward and reverse directions. 4. The novel direct-drive air-jet loom electronic control system according to claim 1, characterized in that the parameter configuration module comprises: Parameter setting unit: connected to the main control unit, used to set internal configuration parameters and display internal configuration parameters and external signal parameters in real time; A first connection unit: connected to the parameter setting unit and the main control unit, used to preset the internal configuration parameters of the loom and send the internal configuration parameters to the main control module; The second connection unit is connected with the parameter setting unit and the weft insertion and yarn release module, and is used for configuring and adjusting the parameters of the weft insertion and yarn release module during the weft insertion process. 5. The novel direct-drive air-jet loom electronic control system according to claim 1 is characterized in that the external signal module 1 comprises: A pulse signal processing unit is arranged inside the external signal module 1, and is used to obtain a pulse signal through an encoder, and to determine the rotation angle of the loom by counting and processing the pulse signal; Conversion unit 1: It is connected to the pulse signal processing unit and is used to convert the angle information into the signal type required by the main control module and then send it to the main control module to obtain the converted angle information. 6. The novel direct-drive air-jet loom electronic control system according to claim 1 is characterized in that the external signal module 2 comprises: Fault identification unit: arranged inside the external signal module 2, used to monitor the running state of the loom, obtain key parameter signals through the encoder, compare the key parameter signals with the key parameter signals under preset normal working conditions, and if the key parameter signals exceed the set threshold range, it is judged that a fault occurs; User operation unit: arranged inside the external signal module 2, used to generate corresponding user operation instruction information according to the user's operation; Conversion unit 2: It is connected to the fault identification unit and the user operation unit, and is used to convert the fault parking signal and the user operation instruction information into the signal type required by the main control module and then send them to the main control module to obtain the converted fault parking signal and the converted user operation instruction information. 7. The novel direct-drive air jet loom electronic control system according to claim 1, characterized in that the weft insertion and yarn placing module comprises: Weft storage unit: connected to the main control module, used to store weft and supply weft by controlling the tension of the yarn; Weft insertion unit: It is connected to the weft storage unit and is used to introduce the weft thread into the loom according to the internal configuration parameters, the external signal parameters and the angle information to complete the rotation and yarn release actions. 8. The novel direct-drive air-jet loom electronic control system according to claim 7, characterized in that the weft storage unit comprises: Power supply unit: it is arranged inside the weft storage unit, used to supply power to the weft storage unit and process the signal transmitted to the weft storage unit; Tension adjustment unit: It is connected to the power supply unit and is used to control the yarn tension within a set range. 9. The novel direct-drive air-jet loom electronic control system according to claim 1 is characterized in that the external signal module 3 comprises: Signal detection unit: It is arranged inside the external signal module 3, and is used to display the weft detection waveform in real time during operation, obtain the pulse number as the basis for judging whether the weft insertion of the loom is successful, and send the pulse number to the main control module; Signal filtering unit: It is connected to the signal detection unit and is used to detect and filter the weft detection interference signal during the operation of the loom to achieve stability when the loom runs at ultra-high speed. 10. The novel direct-drive air-jet loom electronic control system according to claim 1, characterized in that it also includes: Warp letting unit: connected to the main control module, used to control and transmit the warp to the loom; Warp reel unit: connected to the main control module, used to wind the warp and adjust and control the reel running speed to match the loom working speed; Detection unit: connected to the main control module, used to monitor abnormal operation status of the warp line.