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A kind of plastic foam thickness and compression creep tester for packaging

A plastic foam, compression creep technology, which is applied in the direction of applying stable tension/pressure to test the strength of materials, instruments, measuring devices, etc. , to achieve the effect of low production cost, convenient placement and simple device structure

Active Publication Date: 2018-03-23
SHANDONG YUMA SUN SHADING TECH CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Patent 1 (ZL201420517410.9, 2015.01.07, compression creep tester) designed a compression creep tester, which can simultaneously perform compression creep tests on three polyurethane rigid plastic foam samples (GB / T 15048), However, this device is not suitable for thickness testing of plastic foams of different sizes, nor is it suitable for testing the creep properties of large-size flexible plastic foams for packaging

Method used

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  • A kind of plastic foam thickness and compression creep tester for packaging
  • A kind of plastic foam thickness and compression creep tester for packaging
  • A kind of plastic foam thickness and compression creep tester for packaging

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1, the thickness test of plastic foam.

[0041] Refer to attached Figure 10 , attached Figure 4 , attached Figure 5 , attached Figure 6 And attached Figure 8 , when the device is used for the thickness test of plastic foam, the weight (20) is first removed from the step (52) of the loading bar (8), and the pressure plate (46) of the pressure plate assembly (7) and the base (1) The table top is completely fitted, and the data of the digital display device (33) in the digital display device set (30) is zero-adjusted; the handle rod (71) of the lifting handle (15) is pressed down to lift the pressure plate (46) of the pressure plate assembly (7) to a height of According to the thickness of the sample (22) to be tested, place the regular square sample (22) cut to a certain thickness directly under the pressure plate (46), and place it with reference to the scale (23); place the pin (6) through the guide bracket ( 9) Insert the pin support sleeve (21) on...

Embodiment 2

[0042] Embodiment 2, creep test of plastic foam.

[0043] Refer to attached Figure 11 , attached Figure 4 And attached Figure 5 , when the device is used for the compression creep test of plastic foam, first apply the device to test the thickness of the sample to be tested, and then guide the pin (6) from the pin support sleeve (21) on the guide bracket (9) and the loading rod ( 8) is pulled out from the hole D (53), so that the loading rod (8) directly acts on the pressure plate (46) through the connecting sleeve (43) of the pressure plate assembly (7); according to the load requirements of the compression creep test, select a suitable The loading weight (20) is placed on the step (52) of the loading rod (8), and the combined weight of the weight (20), the loading rod (8) and the pressing plate assembly (7) is the measured sample (22) The load of the compression creep test; at this time, the data of the digital display device (33) in the digital display device suit (30)...

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Abstract

The invention relates to a thickness and compression creep tester for plastic foam for packaging. In the prior art, the existing apparatus is used by a tedious way; and different load weights need to be configured according to different standards and material areas. Therefore, the invention provides thickness and compression creep tester that is suitable for many standards and can be operated simply and conveniently. The tester employs a pressing-plate dual-standing-post guidance structure; a load can be adjusted by a loading rod and a weight; and a pressing plate lifting handle is also arranged. A digital display device set is used for measuring a dimension change and is installed at one side of a pedestal and a cantilever; a measuring sliding block is connected with a pressing plate by an angular connecting element; and the measuring sliding block and a pressing plate assembly move synchronously. Measured data are obtained directly in the digital display device and the digital display device has two kinds of testing modes of the thickness and compression variation. The tester has advantages of simple structure and convenient usage. The testers can be manufactured in batch and are used for compression creep testing of a plurality of samples. The provided tester is suitable for thickness and compression creep testing of various soft plastic foam samples.

Description

technical field [0001] The invention relates to the test of plastic foam, mainly relates to the thickness and compression creep test of plastic foam, in particular to a plastic foam thickness and compression creep tester for packaging. Background technique [0002] Plastic foam is a commonly used cushioning packaging material. Its properties, including static compression, dynamic compression, vibration transmission characteristics, and compression creep characteristics, are usually determined before the material is used. Before these performance tests, it is usually necessary to determine the thickness of the material. Since the plastic foam used for cushioning packaging is usually soft, a certain load needs to be applied during the test, and then the thickness test is performed: ASTM D3575 requires the application of 190±50Pa when testing the thickness Unit load; ASTM D2221 requires a unit load of 0.17kPa; GB / T 8167, GB / T 8168, GB / T 8169 and GB / T 14745 require a unit load o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B21/08G01N3/14
CPCG01B21/08G01N3/14
Inventor 温时宝陈磊王慧茜
Owner SHANDONG YUMA SUN SHADING TECH CORP LTD