Product Introduction

The Electronic Let-off and Electronic Take-up System, specifically developed for water-jet and air-jet looms, serves as the core electronic control matching equipment for looms. It is deeply integrated with Junhe A2/A3/A4/A6 Series Integrated Electronic Control Systems, equipped with a tension sensor and a 7-inch IP67 waterproof touch screen. Through precise electronic control technology, it achieves intelligent regulation of let-off and take-up actions, replacing traditional mechanical control methods. It effectively enhances the stability of warp tension during weaving and the uniformity of fabric winding, meeting the high-speed weaving requirements of high-end fabrics such as 20D fine filament nylon, high-elastic yarn, and high-density fabrics. It ensures a flat fabric surface without shading differences and uniform dyeing, providing stable electronic control support for high-value-added fabric production.

Application

1. High-speed weaving of high-end fabrics: Suitable for the production of high-end fabrics with strict requirements for warp tension and fabric winding, such as 20D fine filament nylon, high-elastic yarn, and high-density fabrics.
2. Electronic control matching for water-jet/air-jet looms: Compatible with mainstream high-speed water-jet and air-jet looms, acting as a core electronic control component to achieve intelligent control of let-off and take-up.
3. Multi-variety flexible weaving scenarios: Supports rapid switching of weaving processes, suitable for small-batch, multi-variety production of patterned fabrics like multi-color plaids and jacquards.
4. Electronic control upgrade of looms: Replaces traditional mechanical let-off and take-up structures, realizing electronic control upgrades for old looms and improving weaving precision.
5. High-value-added textile production: Meets the high-quality weaving needs of products such as high-end shirt fabrics, casual fashion fabrics, and decorative fabrics.

Main Functions

1. Equipped with a professional tension sensor, it accurately detects warp tension and achieves real-time intelligent adjustment of let-off actions, ensuring tension stability.
2. Intelligent electronic take-up control ensures uniformity in fabric winding, improves fabric flatness, and prevents shading differences during dyeing.
3. Equipped with a 7-inch IP67 waterproof touch screen for convenient operation, allowing intuitive setting and adjustment of process parameters related to let-off and take-up.
4. Deeply integrated with the Junhe integrated electronic control system, it supports coordination with weft feeders, direct drive motors, and other equipment for efficient whole-machine operation.
5. Adapts to 1-4 weft feeder channels, meeting the precise let-off and take-up control requirements of multi-color weft selection weaving scenarios.
6. Supports personalized setting and storage of process parameters, enabling rapid switching of weaving varieties and improving flexible production efficiency.
7. Adapts to high-humidity and dusty working conditions in textile workshops, with strong equipment protection and high long-term operational stability.
8. Can be paired with optional components such as an electronic dobby control board to expand pattern weaving functions, suitable for complex pattern fabric production.

Product Parameters

FAQ

Q1: What is the precision of the warp tension adjusted by the system? Can it avoid the tension fluctuation problem in high-elastic yarn weaving?

A: Equipped with a high-precision tension sensor, it can detect and dynamically adjust the warp tension in real time, with much higher precision than traditional mechanical control. It can effectively suppress tension fluctuations in the weaving of high-elastic yarn and fine denier yarn, avoiding yarn breakage, fabric wrinkling and other problems.

Q2: How long does it take to adjust the system parameters when changing the weaving variety? Can one-click switching be realized?

A: It supports one-click storage and recall of process parameters. There is no need to re-debug when changing weaving varieties, and the switching can be completed only by calling the corresponding parameters, which takes less than 1 minute and greatly improves the efficiency of multi-variety flexible production.

Q3: Does the system have a self-diagnosis function when a fault occurs during operation? Can the problem be located quickly?

A: Built-in fault self-diagnosis and alarm function. When the equipment runs abnormally, it will alarm through the four-color signal light, and the touch screen displays the fault code and the cause of the problem in real time. The fault can be located quickly without professional personnel, reducing downtime.

Q4: How is the linkage between the system and the weft feeder? Will the let-off and weft feeding be out of sync during multi-color weft selection?

A: It is deeply linked with Junhe's full range of weft feeders and adopts a synchronous control algorithm. It can realize precise synchronization of let-off and weft feeding during multi-color weft selection and high-speed weaving, avoiding fabric weft skew, yarn skipping and other quality problems caused by asynchrony.

Q5: When multiple devices in the workshop run at the same time, will the system be affected by electromagnetic interference and reduce precision?

A: It is designed with professional anti-electromagnetic interference, and the core circuit is equipped with a shielding filter module, which can effectively resist the electromagnetic interference of multiple devices running simultaneously in the textile workshop, ensuring that the tension detection and control precision are not affected and the operation is stable.

Q6: Does the tension sensor need to be calibrated after long-term operation? Is the calibration method complicated?

A: The tension sensor has high stability and can be calibrated once every 1-2 years under normal use; the system supports one-click calibration on the touch screen, no need to disassemble the sensor, and it can be completed by following the operation guide with simple steps, without professional tools and personnel.

Q7: What is the range of loom width adapted by the system? Can it be customized for ultra-wide width looms?

A: It is conventionally adapted to looms with a width of 170-360cm, and supports customized adaptation for ultra-wide width looms within 560cm. According to the weaving needs of ultra-wide width, the tension detection points and control algorithm can be optimized to ensure the tension uniformity of ultra-wide fabric weaving.

Q8: Will the system's process parameters be lost after a power failure? Can production be resumed quickly after the power supply is restored?

A: Equipped with power failure data protection function, all stored process parameters will not be lost after power failure. The system can be restarted quickly after the power supply is restored, and production can be resumed by directly calling the original parameters without re-setting, reducing downtime losses.

Q9: Compared with similar products, is the later maintenance cost of this system high? Do core components need to be replaced regularly?

A: The core electronic control components are independently developed by Junhe with a low failure rate, and there is no mechanical transmission structure that is easy to wear. In the later period, only simple inspections of conventional accessories are needed, and there is no need to replace core components regularly; the price of accessories is only 60%-70% of that of imported competitors, and the overall maintenance cost is much lower than that of similar products.

Q10: Can the system connect to the workshop's production management system? Realize real-time upload of production data?

A: It supports the RS485 communication interface, which can seamlessly connect to the mainstream production management system of the workshop, realize the real-time upload and statistics of production data such as weaving tension, operation time and output, and help the digital management of the workshop.