Leather hardness tester

Abstract

The invention discloses a leather hardness tester, which comprises a support device, a clamping plate, a positioning device, a testing device, a control panel and a controller. The support device comprises a bottom plate and a support plate. The front and rear ends of the clamping plate are respectively fixed on the tops of the two front and rear support plates. The positioning device comprises atransverse stepping motor, a transverse screw, a transverse guiding rod, a longitudinal stepping motor, a longitudinal screw, a column, a longitudinal slider, a transverse slider. A flow sensor is mounted on the top of an oil pump. A pressure sensor, a second transverse stepping motor, a first transverse stepping motor, the longitudinal stepping motor, the flow sensor, the oil pump and the controlpanel are all connected to the controller through guide. The leather hardness tester has a sample clamping function, the stepping motor is driven by the controller to drive a testing head and a testing seat to perform positioning, and the test head is pressed by a hydraulic telescopic rod to test the sample, so that the degree of automation is high, and the test precision is high.

Description

technical field [0001] The invention relates to the field of leather detection, in particular to a leather hardness tester. Background technique [0002] Leather needs a variety of physical and chemical tests after production to determine the quality of the leather. Among them, the hardness of the leather is an indicator that often needs to be tested. The leather hardness tester is used to test the hardness of the leather. It is often used to test whether the softness and hardness of the same batch of leather are uniform, or whether the softness and hardness of each part of a single piece of leather are different. Currently, the leather hardness tester on the market is simple in structure and low in automation. Drive the probe down at a certain speed, naturally press against the leather on the test seat, and read the softness and hardness index of the leather through the electronic meter on the pressing arm. This tester has some shortcomings in actual use; the degree of auto...

AI Technical Summary

Problems solved by technology

[0002] Leather needs a variety of physical and chemical tests after production to determine the quality of the leather. Among them, the hardness of the leather is an indicator that often needs to be tested. The leather hardness tester is used to test the hardness of the leather. It is often used to test whether the softness and hardness of the same batch of leather are uniform, or whether the softness and hardness of each part of a single piece of leather are different. Currently, the leather hardness tester on the market is simple in structure and low in automation. Drive the probe down at a certain speed, naturally press against the leather on the test seat, and read the softness and hardness index of the leather through the electronic meter on the pressing arm. This tester has some shortcomings in actual use; the degree of automation is low, and the test The accuracy is low. When measuring the softness and hardness difference of each part of a single piece of leather, after completing the test of a test point, it is necessary to manually adjust the position of the leather sample after releasing the pressing arm, and then test the next test point. Not only is the operation complicated, time-consuming and labor-intensive, but also the manual adjustment method is likely to cause problems such as uneven placement of the sample on the test seat and inaccurate selection of test points, which in turn leads to errors in the test results of the hardness of the sample. In addition, in the In the process of testing a test point, if the accuracy of the test result is required to be high, it is often necessary to repeat the test many times on the same test point. The sample will move after loosening, and the sample needs to be reset manually, which will cause a small change in the position of the sample and affect the test results

Images