On-line real-time monitoring device and method for average grammage of non-woven products

Abstract

The invention relates to an online real-time monitoring device and method for the average gram weight of nonwoven products. The device includes a weight monitoring subsystem, a length monitoring subsystem and a controller (8), a combiner (11) and a keyboard (13) of the controller. ), the accumulator (14) are respectively connected to the main control board (10) of the controller through wires, and the signal generated by the main control board (10) is output to the display; the weight monitoring subsystem includes a load cell (1), a load cell (1) Connect with the combiner (11) through wires; the length monitoring subsystem includes multiple magnets (5) and magnetic switches (4) evenly pasted on the side of the winder drive wheel (2), and the magnetic switches are connected online through wires to accumulator (14). The invention has the advantages of simple device structure, convenient use, online real-time monitoring of products, accurate numerical values ​​measured by the method of the invention, and timely adjustment of the average grammage of non-woven products.

Description

technical field [0001] The invention relates to a detection device for the non-woven industry, specifically an online real-time monitoring device for the average gram weight of non-woven products, which is mainly used in the real-time monitoring of each square meter in the production process of non-woven industries such as carpets and geotextiles. The weight of the product (hereinafter referred to as gram weight). [0002] The invention also relates to an online real-time monitoring method for the average grammage of non-woven products. Background technique [0003] In the production process of non-woven industries such as geotextiles and carpets, grammage is an important indicator to measure product quality, and it is also an important indicator for manufacturers to measure product production costs. [0004] The traditional method of testing the weight of textiles generally goes through three steps: 1. Sampling, the manufacturer will use a rotating sampling knife with an a...

AI Technical Summary

Problems solved by technology

The shortcomings of this method are mainly reflected in the following aspects: 1. Poor real-time performance: the traditional gram weight detection method is to detect the final product, and the detection result can be used to evaluate the product grade, but it cannot be used to control the entire dynamic production process, poor real-time performance

2. Destructive: The traditional gram weight detection method relies on a sampling knife to cut and sample the product, which is destructive to a certain extent

3. Poor accuracy: On the one hand, traditional sampling only takes 100 square centimeters, that is, only 0.01 square meters. Such a small area is difficult to represent the average weight of the whole roll or even the whole batch of non-woven fabrics, and there are too many accidental factors; on the other hand On the one hand, manufacturers generally use electronic scales with a graduation value of 1 gram for measurement. To multiply by 100, it seems that the error of one square meter is at least about 50 grams, and such test results are almost worthless for products with a deviation of only 10 grams, even if a high-precision electronic balance is used , can avoid the inaccuracy caused by weighing, and can not avoid the deviation caused by sampling. After all, for a roll of textiles of 1600 square meters, a sample of 0.01 square meters is difficult to represent all

4. Serious waste: In order to control the weight of the product, some manufacturers have to produce first, then sample, and then adjust the equipment parameters according to the sampling results

This seems reasonable, but in fact there is serious waste

On the one hand, the length of the general non-woven production line is about 60 meters from feeding to winding. Repeating this several times will cause a lot of waste; on the other hand, it is impossible for most production lines to produce only one product , manufacturers with relatively rich products will change the gram weight index once every 3-5 days. Under such frequent changes, the above operations will obviously cause serious waste

Images