Digital type tear strength tester

Abstract

The invention discloses a digital type tear strength tester which comprises an energy conversion mechanism for converting gravitational potential energy into kinetic energy, a clamping mechanism for clamping a test sample and a measurement mechanism for measuring energy loss, wherein the energy conversion mechanism comprises a swing device and a test weight; the test weight is hung on the swing device, and the swing device swings to convert the gravitational potential energy of the test weight into the kinetic energy of the swing device; the clamping mechanism comprises a movable part and a fixed part; the movable part of the clamping mechanism is connected with the swing device; the fixed part is fixed on a stander of the tester; under the action of the swing device, the movable part and the fixed part of the clamping mechanism are separated, so that the test sample clamped on the movable part and the fixed part is torn away; the measurement mechanism comprises an angle encoder; the angle encoder is connected with the swing device; and the swing device swings, so that the angle encoder reads an angle variable. The digital type tear strength tester has the advantages of simple structure, simplicity and convenience in operation, small test error, high test accuracy, high test efficiency and the like.

Description

technical field [0001] The invention relates to the technical field of mechanical testing, in particular to a digital tear strength tester. Background technique [0002] After the sheet materials such as textiles, paper, and rubber sheets are prepared, their tear resistance needs to be tested. With the progress of society, the tear strength tester has changed from the original manual tearing method to mechanical self-testing. However, the manual tear detection method has low accuracy, low detection efficiency and heavy labor. The existing mechanical testing equipment clamps the sample through a clamp device, applies two forces in opposite directions on the sample to tear the sample, and then converts the tear strength of the sample by detecting the two applied forces. This detection method The detection error is large, the precision is low, and the operation is cumbersome. Contents of the invention [0003] Aiming at the existing problems of large tear strength test err...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the existing problems of large tear strength test errors, low test accuracy, cumbersome operation, etc., the present invention provides a digital tear strength tester, the purpose of which is to tear the test sample by converting gravitational potential energy into kinetic energy, and then pass Detect the loss of energy to calculate the tear strength of the test sample, and perform regular calibration through the calibration device to adjust the measurement error. The operation is simple, and the test efficiency and test progress are high.

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