An automatic test device and method for water absorption height of wet curtain products

Abstract

The invention relates to a wetted pad product water absorption height automatic testing device and a method thereof. The wetted pad product water absorption height automatic testing device is mainly composed of a water tank, a sample placing device, a sample mapping device and a PLC; an electric heating element and a temperature sensor are arranged in the water tank; the sample placing device comprises a supporting plate and a sample lifting device; the sample mapping device comprises a laser marking machine, an image measuring instrument, a monitoring camera, a mapping lifting mechanism and ahorizontal moving mechanism; and the PLC controls lifting and lowering of the supporting plate, controls lifting, lowering and horizontal movement of the laser marking machine, the image measuring instrument and the monitoring camera, and controls the laser marking machine, the image measuring instrument and the monitoring camera to carry out laser marking, image measurement, photographing or photographing on the four vertical sides of samples and calculate the average water absorption height of the three samples. By using the technical scheme of the wetted pad product water absorption heightautomatic testing device and the method thereof, manual operation is avoided in the test process, test errors caused by human interference factors are eliminated, and the accuracy of test data is improved.

Description

technical field [0001] The invention relates to the technical field of product detection, in particular to an automatic test device and method for the water absorption height of wet curtain products. Background technique [0002] The tested product is a corrugated wet curtain product made of agricultural fiber materials. The so-called wet curtain is a corrugated ventilation and cooling product made of hydrophilic and water-resistant fiber materials. The key requirements of technical performance are also different. The water absorption height of the product is generally tested by taking three samples of the specified size (width 100×thickness 100×height 200, unit: mm) in a natural dry state, and each sample is in the Draw a center line parallel to the height direction on the vertical side formed by the height and thickness directions, place the test piece in a water tank with a specified temperature and water depth (30mm) with the height direction as the vertical direction, a...

AI Technical Summary

Problems solved by technology

Due to the inevitable error or misjudgment due to manual operation, all the characteristics of the sample will also change after the test is completed. After the test data dispute occurs, there is no evidence to be found

For example, there will be errors when manually drawing the center line of the sample, and the height of the water surface will change when the test pieces are put into the water tank one by one. After the specified time, measure the final wetting of the center line of the vertical side of the test piece from above the water surface. When the height is measured one by one, there will be an inevitable delay in time. At the same time, due to the instability of the hand-held measuring tool, the touch of the sample will cause ripples on the liquid surface, making the measurement data inaccurate. After the liquid level is stable, the measurement time will be prolonged and cause wetting The height changes, and it is easy to make mistakes when calculating the arithmetic mean value of the wetting height manually. How to change the problem of low test quality and efficiency, there is no automatic test device and method for the water absorption height of wet curtain products.

Images