Device for measuring thermoplastic shrinkage of plastic sheet based on electromagnetic induction

Abstract

The invention discloses electromagnetic induction-based thermoplastic shrinkage measurement equipment for a plastic sheet. A shrinkage detection structure is arranged in a detection table; a mounting frame is fixedly mounted on the side surface of the sliding frame, and a controller is embedded and fixed in the mounting frame; comprising a plastic square sheet which is correspondingly arranged at the middle position of the inner side of the detection table; the automatic telescopic rod is fixedly mounted in the side of the detection table in an embedded manner; the upper limiting frame is fixedly mounted in the middle of the lower end of the internal expansion and contraction amount detection mechanism; and the transverse telescopic rods are symmetrically and fixedly mounted at the upper end of the inner side of the detection table. According to the electromagnetic induction-based thermoplastic shrinkage measurement equipment for the plastic sheet, a novel structural design is adopted, so that the equipment can detect multiple positions of the surface of the plastic sheet, and meanwhile, a plastic sheet internal shrinkage measurement structure is arranged in the equipment, so that the thermoplastic shrinkage measurement is relatively comprehensive.

Description

technical field [0001] The invention relates to the technical field of thermoplastic processing of plastic sheets, in particular to a measuring device for thermoplastic shrinkage of plastic sheets based on electromagnetic induction. Background technique [0002] Plastic sheets have high plasticity under processing conditions. Putting plastic sheets in thermoplastic processing equipment can control the plastic sheets to form corresponding shapes according to processing needs. However, plastic sheets of different basic synthetic materials and different thicknesses can During the thermoplastic processing, the shrinkage is different. The shrinkage of the plastic sheet can be detected by the thermoplastic shrinkage detection equipment. However, the existing thermoplastic shrinkage detection equipment has a limited detection range for the plastic sheet. During the detection process There are still some problems: [0003] 1. Different positions on the surface of the plastic sheet ...

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Problems solved by technology

[0006] The object of the present invention is to provide a plastic sheet thermoplastic shrinkage measurement device based on electromagnetic induction, to solve the problem that the shrinkage of different positions on the surface of the plastic sheet is different during the thermoplastic process in the above background technology, and the detection equipment is in the process of detection. It is not convenient to detect and process multiple positions on the surface of the plastic sheet, and the accuracy of the analysis results is low. The existing thermoplastic shrinkage detection equipment can only detect the surface of the plastic sheet during the detection process. The shrinkage reaction data inside the material after thermoplastic can not be well detected and analyzed, so it is impossible to comprehensively study and analyze the problem of the shrinkage of the plastic sheet.

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