Device and method for eddy current non-destructive testing of deformation of tin foil carton inside carton
A non-destructive testing and eddy current technology, applied in the direction of electromagnetic measuring devices, electric/magnetic solid deformation measurement, etc., can solve problems such as limited shape quality testing, improve quality control capabilities, reduce loss costs, and improve detection accuracy and accuracy Effect
Active Publication Date: 2021-10-29
CENT SOUTH UNIV
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[0006] The invention provides an eddy current non-destructive detection device and method for the deformation of the tin foil carton inside the carton, aiming to solve the technical problem that the existing product packaging box deformation detection device is only limited to the quality detection of the carton shape before packaging
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[0062] In order to better understand the above-mentioned technical solution, the above-mentioned technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.
[0063] Such as figure 1 and figure 2 As shown, the present invention provides an eddy current non-destructive testing device for deformation of tinfoil carton inside a carton, including a conveying mechanism 10, a mounting frame 20, an eddy current displacement sensor 30, a data acquisition card 40 and a host computer 50, wherein the conveying mechanism 10, used to transport the packaging carton 100 to be tested; the installation frame 20 is installed on the conveying mechanism 10; the eddy current displacement sensor 30 is arranged on the installation frame 20, and is used to measure the tin foil inside the packaging carton 100 to be tested during transportation The relative position of the box 200 and the probe end face, and convert the relat...
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The invention discloses an electric eddy current nondestructive detection device and method for the deformation of a tin foil carton inside a carton. The device includes a conveying mechanism, a mounting frame, an eddy current displacement sensor, a data acquisition card and a host computer. The relative position between the tin foil carton inside the packaging carton to be tested and the end face of the probe, and convert the relative position into a corresponding electrical signal for output; the data acquisition card is used to collect the electrical signal converted by the eddy current displacement sensor; the upper computer and the data The acquisition card is connected to compare the voltage threshold in the preset voltage mapping table with the voltage value in the electrical signal to determine whether the surface of the carton is deformed. The eddy current non-destructive detection device and method for the deformation of the tin foil carton inside the carton proposed by the present invention detects the deformation of the tin foil carton inside the carton through a harmless nondestructive testing method, and uses the slope angle to analyze whether the carton enters the detection point before and after the two sides. Deformation occurs, which improves the detection precision and accuracy.
Description
technical field [0001] The invention relates to the field of eddy current nondestructive testing, and in particular discloses an eddy current nondestructive testing device and method for deformation of a tinfoil carton inside a carton. Background technique [0002] In high-end food and consumer goods, the packaging requirements are extremely high, but when the automatic packaging line presses the carton containing the inner layer of tinfoil into the carton to be tested, the carton will occasionally be deformed, affecting product quality and packaging aesthetics Therefore, it is necessary to use harmless non-destructive testing methods for finished product testing before leaving the factory, and to eliminate unqualified products. [0003] In the patent document with the patent number 201720855697.X, a packaging machine cigarette box extrusion detection and aluminum foil damage detection device is disclosed. The switch is used for aluminum foil damage detection, and the radia...
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IPC IPC(8): G01B7/16
CPCG01B7/16
Inventor 赵海鸣胡刚
Owner CENT SOUTH UNIV