Cable foaming insulation layer sampling device

Abstract

The invention relates to a cable foaming insulation layer sampling device, and belongs to the technical field of special devices for sampling wires and cables, which comprises a bracket, a dial, a screw, a cable catching mechanism and a cable die sleeve, wherein a first suspension plate and a second suspension plate are fixed on the bracket, the first suspension plate is positioned on the upper part of the bracket, while the second suspension plate is correspondingly arranged below the first suspension plate; the dial is provided with scale reticules and fixed at one end of the first suspension plate, and the other end of the first suspension is provided with a die sleeve positioning hole; the upper end of the screw passes through the center of the dial and fixed with a knob, the lower end of the screw is supported on the second suspension plate, and the knob is provided with an indicating mark; the cable catching mechanism is connected to the screw; and the cable die sleeve is arranged in the die sleeve positioning hole. The device has the advantages that: the whole sampling process does not damage a foaming insulation layer and a wire core; the device can ensure consistency and smoothness of the thicknesses of the measured foaming insulation layer; and the device provides guarantee for the correct detection of detecting devices.

Description

technical field [0001] The invention belongs to the technical field of special devices for sampling electric wires and cables, and in particular relates to a sampling device for foamed insulating layers of cables, which cuts out sheets of foamed insulating layer samples from outside cores of electric wires and cables for detection by testing instruments. Background technique [0002] In order to ensure the product quality of the cable foam insulation layer, it is necessary to test the foam insulation layer during the production process and in all links before the product leaves the factory, so as to check the consistency of the thickness of the foam insulation layer and the thickness of the wire core. The concentricity and the compactness of the foamed insulating layer are tested, and the premise of the detection is to obtain the foamed insulating layer that tends to be sheet-like from the outside of the core of the wire and cable. In the prior art, tools such as scissors, b...

AI Technical Summary

Problems solved by technology

There are three disadvantages brought by this sampling method: one is that the flatness of the section of the foamed insulating layer cannot be guaranteed, which affects the detection effect; the other is that the sample to be inspected, that is, the foamed insulating layer is a sheet , the thickness is only a few microns, so the thickness cannot be controlled by manual cutting or manual cutting, which will cause trouble for subsequent testing; the third is that it is difficult to grasp the shearing force during manual cutting, which will make the foam insulation on the surface Layer damage, as well as damage to the core, so that the detection can not be carried out

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