Testing device for measuring vibration transmission property of buffer material

Abstract

The invention discloses a testing device for measuring the vibration transmission property of a buffer material. The testing device comprises a base plate, and four guiding pillars are fixedly installed on the base plate; an upper pressing plate, an upper buffer material sample, a content simulating part and a lower buffer material sample are tightly compressed in each of the four guiding pillars from top to bottom in sequence; each content simulating part is formed by making an upper mass block, a sensor mounting frame and a lower mass block fixedly connected with one another; the upper pressing plate is fixedly connected with the upper mass block; a first limiting structure which is constituted by multiple limiting layers is connected to the four guiding pillars, each limiting layer is composed of four guiding supporting blocks, four supporting shafts and four rolling parts, and the guiding supporting blocks are fixedly connected with the corresponding guiding pillars in a vertically adjustable mode; a second limiting structure which is constituted by four limiting support blocks are further connected to the four guiding pillars, and the four limiting support blocks are fixedly connected with the corresponding guiding pillars in a vertically adjustable mode, and clamp the four corners of the upper pressing plate. By means of the testing device for measuring the vibration transmission property of the buffer material, the stability and effectiveness of testing data are guaranteed, and the repeatability of tests is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of test and measurement, in particular to a test device capable of accurately measuring the vibration transmission characteristics of a cushioning material for nonlinear elastic packaging. Background technique [0002] When packaging design, the packaging system generally consists of the contents (products), cushioning materials and corrugated box outer packaging. Due to the elasticity and damping of the buffer material, on the one hand, the response of the product to external vibration excitation is weakened, and on the other hand, plastic deformation occurs to dissipate the energy of external vibration excitation. Therefore, in general, the damage effect of vibration on the product is relatively small. However, when the natural vibration frequency of the packaging system is equal to or close to the natural vibration frequency of the product or key components of the product, resonance may occur, so the exci...

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Problems solved by technology

At present, this detection method only has a schematic diagram of a fixture given in the standard, without corresponding test equipment, it is difficult to carry out the test, and the stability of the test data is not very good

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