Instrument for automatically testing thickness and compression recovery performance of textile product

Abstract

The invention relates to an instrument for automatically testing the thickness and the compression recovery performance of a textile product. The instrument comprises an instrument main frame (a pedestal, two vertical columns and a middle cross beam), a lengthener (comprising a corresponding horizontal support plate), a series of pressure feet, a sensor, a sample collector, an output interface, output equipment (a computer and a printer), and a software control system, the software control system is utilized to set the pressure and the running speed of the pressure feet in order to automatically determine the thickness, the compression recovery performance and the fiber compression performance of the textile product, test data are automatically output, and a relevant statistical chart is output according to test needs. The instrument utilizes a servo motor to electrically press, the pressure is momentarily captured under a sampling frequency reaching 5000/s through circuit and software filtering by using a 32 bit ARM controller and a 24 bit highly-precise AD converter, and the motor is controlled by adopting a PID algorithm to increase or decrease the pressure in order to realize a constant pressure; the AC servo motor is decelerated through a synchronous pulley, and is transmitted through a ball screw to drive the pressure feet arranged on the cross beam to downward move, and the speed is (0.01-1000)mm/min; and the position of the cross beam is calculated by acquiring the signal of a 2500 wire motor encoder, and is automatically output to obtain the thickness or the thickness displacement of a sample.

Description

technical field [0001] The invention relates to a testing device for the thickness, compression recovery performance and fiber compression performance of textile products, which belongs to the textile compression recovery performance testing technology. Background technique [0002] Thickness and compression recovery are one of the quality indicators of textile products, especially bulky fabrics (including non-woven fabrics), warp-knitted spacer fabrics, fiber products for wadding, quilted products, chemical fiber composite wadding, quilts and other products. [0003] For the thickness, the basic measurement method is: the sample is placed on the reference plate, parallel to the presser foot of the plate, the specified pressure is applied to the specified area of ​​the sample, and the vertical distance between the two plates is measured and recorded after the specified time. , which is the measured value of the sample thickness. Method standards mainly include GB / T 3820-199...

AI Technical Summary

Problems solved by technology

[0006]①There are many instruments used in the measurement, and the universality of the test instruments is very poor

[0011]①GB / T 24252-2009 Appendix D, GB / T 22796-2009 Appendix B, Industry Standard FZ / T 81005-2006 Appendix B, FZ / T 64003-2011 In appendix A, the compression resilience test methods of their respective products are stipulated, in which there is no provision for the quality accuracy of the weight, the quality accuracy of the test tablet is poor, and the graduation value of the steel ruler is 1 mm (FZ / T 64003- In 2011, the division value of the steel ruler was 0.5 mm), the above factors will affect the accuracy of the measurement; ②When measuring, the operator is not sure about the verticality of the steel ruler, which will cause height measurement errors; ③The measurement time is difficult to control , due to the need to measure the height of the four corners of the sample from four directions, the measurement personnel have to walk around the workbench within 30 seconds, measure and record the height data with a steel ruler, the actual operation is difficult, usually requires 2 operators Cooperation can be completed, otherwise it will cause overtime, and the accuracy of measurement will be affected due to the change of compression deformation state

The existence of the above three problems, especially the existence of human operation factors, makes the current measurement of the compression resilience index of silk cotton quilts cumbersome and has large measurement errors

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