Shoe moisture permeability and moisture absorbing performance test device

Abstract

The invention discloses a shoe moisture permeability and moisture absorbing performance test device. A weight measurement instrument is located at the bottom of the inside of a constant temperature and humidity box, a controller is arranged outside the constant temperature and humidity box, the weight measurement instrument in the constant temperature and humidity box is provided with a fixing frame, a shoe sample is located on the weight measurement instrument, the fixing frame is provided with a supporting rod, the supporting rod is provided with a supporting circular ring, a sample fixing frame used for fixing a sock-shaped cavity is located on the weight measurement instrument, a welt of the sock-shaped cavity made of a microporous film is placed in from the lower portion of the inside of the supporting circular ring, the upper portion of the supporting circular ring is turned outwards, the portion, exposed out of a shoe cavity of the shoe sample, of the sock-shaped cavity is provided with an auxiliary moisture retaining element, the upper portion of the supporting circular ring is provided with a sealing cover, and a temperature control device and a water circulating device of the sock-shaped cavity are connected with the controller through connection cables in a signaling mode. The test device is close to the state when a person wears shoes, and has the advantages that adaptability is high, the application range is wide and test data are accurate and credible.

Description

technical field [0001] The invention belongs to the field of finished shoe detection, and in particular relates to a test device for water vapor permeability and water vapor absorption of finished shoes. Background technique [0002] The water vapor absorption and water vapor permeability of finished shoes are closely related to their comfort and hygiene, and are important factors affecting comfort and hygiene. There are many factors that affect the water vapor permeability and water vapor absorption of finished shoes. A finished shoe is an irregular composite composed of various materials, including upper material, shoe lining material, sole material, adhesive, inner toe cap, structural design, shoe making Technology, etc., the moisture absorption and moisture permeability test of simple shoe materials cannot truly reflect this performance of shoes. [0003] At present, there are two types of testing methods, one is the direct steam injection method, the principle is to in...

AI Technical Summary

Problems solved by technology

The amount of water vapor is difficult to control. If it is too large, it will condense into water droplets and penetrate into the finished shoes, making the water vapor absorption value of the tested shoes too high; if the setting is too small, all the water vapor from sweating will pass through the finished shoes to the outside world. The water vapor absorption of finished shoes is not saturated, so the measured water vapor absorption value is relatively small, so the test data is prone to inaccurate situations

[0004] The patent with the publication number CN202335437U discloses a moisture absorption and moisture permeability tester for finished shoes. This technical solution also has the following technical problems: the test conditions are far away from the state when the human body wears them, and are different from the state when the human body wears the finished shoes; the water in the shoe cavity The amount of steam is difficult to control. If it is too large, it will condense into water droplets in the shoe cavity, which will cause the water absorption of the finished shoe to be too large. If it is too small, the water vapor will pass through the finished shoe to the outside of the shoe cavity, resulting in the water absorption of the finished shoe. The steam volume and water vapor permeability are both small; the temperature, pressure, and airtight control of the steam during the transportation process are all difficult, so the operability is not strong; high-power operation leads to reduced energy conservation and environmental protection, and increased operating costs; and The device is only used to test the determination of water permeability and water absorption, and there is also the problem of single function

[0005] The patent with the publication number CN102525035A discloses a "test method and equipment for water vapor penetration and water vapor absorption of finished shoes". In the external environment, and in this technology, water vapor is absorbed by the silica gel in the shoe cavity through the external environment through the finished shoe

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