Sample uniform mixing device for extraction based on food detection system

Abstract

The invention discloses a sample uniform mixing device for extraction based on a food detection system. The sample uniform mixing device comprises a first bracket and a second bracket, wherein a support rod is movably installed between the first bracket and the second bracket, the outer surface wall of the support rod is slidably connected with a mixing cylinder, and the two sides of the verticalend of the mixing cylinder are respectively provided with a feeding port and an outlet. According to the sample uniform mixing device, the mixing cylinder is stressed to move in two directions, in thefirst direction, a sliding rod and a spring are matched with the vertical end of the mixing cylinder, so that the mixing cylinder has an axial pushing force, in the second direction, the spring always pushes the mixing cylinder to get close to a push plate in the rotating process of the mixing cylinder, so that a fixed rod on the vertical outer surface wall of the mixing cylinder is always attached to the push plate, at the moment, due to the inclined arrangement of the push plate, the mixing cylinder can horizontally swing in the horizontal direction, and the movement paths of the push plateand the mixing cylinder are combined, so that the sample and the extraction agent are repeatedly agitated and swung in the mixing cylinder, and the use effect of the mixing device is improved.

Description

technical field [0001] The invention relates to the technical field of food detection systems, in particular to a sample homogenization device for extraction based on a food detection system. Background technique [0002] Food inspection in a broad sense refers to a discipline that studies and evaluates food quality and its changes. It is based on some basic theories and various technologies of physics, chemistry, and biochemistry, and in accordance with established technical standards, such as international and national food hygiene / safety Standards, to inspect the quality of food raw materials, auxiliary materials, semi-finished products, finished products and by-products to ensure that the product quality is qualified. The content of food inspection includes the sensory inspection of food, the detection of nutritional ingredients, additives, and harmful substances in food, etc. [0003] At present, food samples need to be subjected to solid-phase extraction in the food d...

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Problems solved by technology

[0003] At present, food samples need to be subjected to solid-phase extraction in the food detection system, and in solid-phase extraction, the sample and the extraction agent need to be mixed through a corresponding mixing device, but the existing mixing device still has deficiencies, first of all, the current In some mixing devices, the driving part drives the mixing cylinder to rotate through the output shaft, and the mixing cylinder performs a stable single-direction axial movement. Although the single-direction axial movement can complete the mixing of the sample and the extractant, the stirring rate is relatively low. Slow, and during the axial rotation of the sample and the extractant following the mixing drum, the two will adhere to the inner wall of the mixing drum to reduce the collision with each other, resulting in poor mixing uniformity between the sample and the extractant, thereby reducing The use effect of the mixing device is improved; secondly, in the existing mixing devices, the structure of the mixing drum mostly adopts an integrated structure, which leads to inconvenience when cleaning the inside of the mixing drum, and the aging of the transmission components inside the mixing drum Or when it is damaged, it will lead to the scrapping of the whole mixing drum, thereby reducing the applicability of the mixing device

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