Application of Measuring Light Curtain in Blanket Edge and Tuft Edge Detection and Position Correction
In the textile and fabric processing industry, accurate control of fabric edge position and detection of tuft edges (i.e. irregular or defective edges on fabric) are essential to improving product quality, reducing waste, and achieving automated production. Traditional manual detection methods are not only inefficient, but also difficult to ensure the accuracy and consistency of detection. Therefore, the introduction of advanced sensing technologies such as measuring light curtains (also known as photoelectric sensor arrays) has become an effective means to solve this problem. This article will detail the application of measuring light curtains in blanket edge and tuft edge detection, and explain how they work in conjunction with the control system to achieve position correction.
Measuring Light Curtain Technology Overview
Light curtain, also known as safety light curtain or photoelectric protection device, is a non-contact detection device based on photoelectric principle. It consists of two parts: transmitter and receiver. The transmitter emits infrared light or visible light to form a light curtain, and the receiver receives these lights. When an object (such as a blanket) passes through the light curtain, it will block part of the light, causing the light signal received by the receiver to change, thereby triggering the signal output. The light curtain has high resolution and fast response speed, and can accurately sense the position and shape changes of objects.
Application of Measuring Light Curtains in Blanket Edge and Tuft Edge Detection
Blanket edge detection
In the blanket production line, light curtains are installed on both sides of the fabric transmission path to form a horizontal light curtain barrier. When the blanket passes normally, its edge will cut the light emitted by the light curtain, triggering the detection of the edge position. By accurately calculating the position of the cut light, the system can obtain the accurate position information of the blanket edge in real time. If the blanket edge deviates from the preset position, the light curtain will immediately send a signal to the control system.
Tuft edge detection
Tuft edge is an irregular edge phenomenon on the fabric caused by unevenness or defects in the weaving process. The light curtain can identify these subtle edge changes through its high-resolution detection capability. When the tuft edge passes through the light curtain, its irregular shape causes the light signal received by the light curtain to produce complex change patterns. After these change patterns are converted into digital signals, the existence and specific location of the tuft edge can be identified through algorithm analysis.
Position Correction Mechanism
Once the light curtain detects that the edge of the blanket deviates from the preset position or detects the tuft edge, it will immediately send a signal to the control system. After receiving the signal, the control system will perform the following steps to correct the position:
Data analysis
First, the control system analyzes the received light curtain signal to determine the offset of the edge of the blanket or the specific position of the tuft edge.
Strategy formulation
Based on the analysis results, the control system formulates a corresponding correction strategy. For edge deviation, it may be achieved by adjusting the speed or direction of the conveyor belt; for the tuft edge, it may be necessary to start the automatic cutting or marking device for subsequent processing.
Execution correction
Finally, the control system executes the correction strategy to achieve accurate correction of the blanket position by adjusting mechanical components or triggering other automated equipment.
Advantages and Features of Measuring Light Curtains
High-precision detection
The measuring light curtain can accurately capture the slight changes in the edge of the blanket and the edge of the tuft, greatly improving the accuracy of position correction.
Real-time response
The signal transmission of the light curtain and the adjustment of the control system are almost completed synchronously, which can correct the offset of the blanket in real time and avoid error accumulation.
Non-contact detection
The measuring light curtain uses infrared beams for detection, which will not cause any physical contact and wear to the blanket, ensuring the integrity of the fabric.
Easy operation
The installation and debugging of the measuring light curtain are relatively simple, and efficient blanket detection and correction can be achieved without complicated operations.
Application Prospects of Measuring Light Curtains
As the textile industry develops towards automation and intelligence, the application of measuring light curtains in blanket detection will become more extensive. It can not only be used in traditional weaving production lines, but also play an important role in high-end textiles and intelligent manufacturing systems. In the future, measuring light curtains will bring more innovative solutions to the textile industry and improve production efficiency and product quality.
All in all, the application of measuring light curtains in the detection of carpet edges and tuft edges has significantly improved the automation level and product quality of the textile and cloth processing industries. Through real-time, accurate detection and rapid position correction, it not only reduces the need for manual intervention, but also greatly reduces the error rate and scrap rate in the production process. With the continuous advancement of technology and further reduction of costs, measurement light curtain technology is expected to be widely used in more fields, bringing more convenience and benefits to industrial production.
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