A metal detection device for food

Abstract

The invention relates to the technical field of food processing, and discloses a metal detection device for food, which includes a support chassis, the bottom of the support chassis is fixedly equipped with walking rollers, and the bottom of the inner side of the support chassis is fixedly equipped with a control box , the left side of the control box is fixedly connected with a circuit connection line, the top of the support chassis is fixedly installed with a working platform, the inner side of the working platform is fixedly installed with a slide rail, and the side of the slide rail is movably installed with The first pulley moving device, the other end of the circuit connection line is fixedly connected to the bottom of the first pulley moving device. The metal detection device for food, by setting the control box and the first pulley moving device, makes the induction coil frame move with the food and at the same time changes the frequency of the internal magnetic field transmitting coil to ensure that the device can detect metals with different detection frequencies. Prevent some metals with higher or lower frequencies from being detected.

Description

technical field [0001] The invention relates to the technical field of food processing, in particular to a metal detection device for food. Background technique [0002] The food metal detector adopts high-speed digital signal processing devices and intelligent algorithms, which can detect metals in frozen foods (such as dumplings, frozen fish), meat, rice, pickled products, etc., and adopts high-speed digital signal processing devices and intelligent algorithms. Improved detection accuracy and stability. [0003] The currently used food metal detection device has three sets of coils distributed inside the detector, namely the central transmitting coil and two equivalent receiving coils. The oscillator connected to the middle transmitting coil generates a high-frequency variable magnetic field. When the induced voltages of the receiving coils on both sides cancel each other before the magnetic field is disturbed and reach a balanced state, once the metal impurities enter th...

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Problems solved by technology

[0004] However, when detecting metals in food, the lower the operating frequency of the electromagnetic transmitter, the better the detection effect on iron, and the higher the operating frequency, the better the detection performance on high-carbon steel. However, the metal detection devices currently used in When using it, the frequency is kept within a certain range. However, some metals cannot be detected in this way, which can easily lead to missed detection, and the position and direction of the food during the detection process are not changed, which will easily affect the sensitivity of metal detection in food.

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