Plastic detection sample cutting device

Abstract

This patent discloses a plastic detection sample cutter, which relates to a sample cutter; the plastic detection sample cutter includes a base, a pillar and a knife holder; the pillar is fixedly connected to the base, and the pillar is perpendicular to the base, and the knife rest and the pillar Sliding connection, and a return spring is set on the pillar, and the return spring is located between the base and the knife holder; the base is provided with vertical and horizontal knife grooves, and the vertical and horizontal blades are installed on the knife holder, and the knife grooves separate the upper plane of the base Divided into a number of sub-grids, between the blades are provided with a number of pressing columns that are engaged on the tool holder, the pressing columns can slide relative to the tool holder in the vertical direction, and there is a top pressure column between the pressing column and the tool holder. Spring; the knife groove corresponds to the blade, and the distribution grid corresponds to the pressing column. When the blade of the plastic testing sample cutter applies pressure to the plastic film, the pressing column can first compress the plastic film, thereby avoiding plastic deformation, so that the cutting quality of the sample is higher and the size is more accurate.

Description

technical field [0001] The invention relates to a sample cutter, in particular to a plastic testing sample cutter. Background technique [0002] At present, in my country's food packaging materials, the amount of plastic used exceeds 50% of the total food packaging materials, ranking first among all kinds of packaging materials. In food plastic packaging, it is mostly composite film and bag. The implementation standard of this kind of product is GB / T10004-2008 "Plastic Laminated Film for Packaging, Bag Dry Lamination, Extrusion Lamination", among which, an important detection index is: solvent residue. In the national "Plastic Packaging Films and Bags for Food Quality Supervision and Sampling Implementation Specifications" (CCGF209.2-2010), the importance and unqualified degree of solvent residues are classified as Class A, that is, solvent residues are extremely important quality project. [0003] In the detection process of solvent residues, the sample preparation metho...

AI Technical Summary

Problems solved by technology

[0004] On the one hand, in the process of testing, if there is no special cutting tool, it will not show up when there are few samples. If it is a large-scale inspection, hundreds of thousands of samples are cut by hand, and the sample cutting process is not only laborious and time-consuming , will also have a great impact on the test results; on the other hand, the detection methods of solvent residues are not limited to national standards, and a large number of inspection institutions have developed new laboratory methods by themselves, trying different cutting sample sizes , can get more accurate test results and fast test efficiency

[0005] In order to improve cutting efficiency, the patent of Chinese Publication No. CN205091144U discloses a plastic sample cutting device, which includes a pillar, a rotating shaft, a rotating plate, a handle, a blade, a buffer sponge, a cutting base, a discharge port and a distribution point. Material grid; the cutting base and the rotating plate are fixed by pillars, and the rotating plate is fixed on the rotating shaft by rotating the rotating shaft. A blade is installed on the side of the rotating plate close to the cutting base. A buffer sponge is installed on the end surface, and the lower end of the buffer sponge is provided with a material distribution grid, and the end of the cutting bottom far away from the rotating plate is provided with a discharge port; the plastic sample cutting device is simple and reasonable in structure, easy to use, and improves to a certain extent Sample cutting efficiency; however, since the plastic material is not tensioned during sample cutting, when the cutter exerts pressure on the plastic film, the plastic film is often deformed, so the quality of the sample is not high and the size is not accurate

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