An automatic tester for thickness and compression recovery performance of textile products

Abstract

The present invention is a tester for the thickness, compression recovery performance and fiber compression performance of textile products, including the main frame of the instrument (a base, two vertical columns, and a middle beam), and an extender (including corresponding horizontal support plates) , a series of presser feet, sensors, sample collectors, output interfaces, output devices (computers, printers), and software control systems, which are characterized in that the software control system is used to set the presser foot pressure and running speed, and automatically measure the thickness of textile products. Compression recovery performance and fiber compression performance, the test data is automatically output, and relevant statistical charts are output according to the test requirements. The instrument uses a servo motor to apply pressure electrically, uses a 32-bit ARM controller and a 24-bit high-precision AD converter, filters through circuits and software, and has a sampling frequency of 5000 times per second to ensure that the pressure value can be captured at any time. At the same time, the PID algorithm is used to control the motor , to increase or decrease the pressure to achieve constant pressure; after the AC servo motor is decelerated by the synchronous pulley, it drives the presser foot installed on the beam to move down through the ball screw drive, and the speed range is (0.01-1000)mm / min; Collect 2500-line motor encoder signals to calculate the position of the beam, and automatically output the thickness or compression displacement of the 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 fluffy 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. The method standards mainly include GB / T 382...

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] ①Appendix D of GB / T 24252-2009, Appendix B of GB / T 22796-2009, Appendix B of industry standard FZ / T 81005-2006, Appendix A of FZ / T 64003-2011 stipulate the test methods of compression resilience of their respective products, among which There is no regulation on the quality accuracy of the weight, the quality accuracy of the test tablet is poor, the division value of the steel ruler is 1 mm (the division value of the steel ruler in FZ / T 64003-2011 is 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, because the height of the four corners of the sample needs to be measured from four directions, Within 30 seconds, the measuring personnel have to walk around the workbench for a week, measure and record the height data with a steel ruler, the actual operation is difficult, and usually requires the cooperation of 2 operators to complete, otherwise it will cause timeout, due to the change of compression deformation state affect the accuracy of the measurement

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

Images