Self-circulation minimal adding device

Abstract

The invention relates to a self-circulation minimal adding device. A support is connected to a rack through a lifting adjusting device; a feed box is installed on the support, a vacuum storage silo is arranged above the feed box, and a feed inlet of the feed box is communicated with a discharge hole of the vacuum storage silo; a sucking pump is installed on the vacuum storage silo, a filter element is installed in the vacuum storage silo, a pumping hole of the sucking pump is communicated with the interior of the vacuum storage silo through the filter element, and a live vale is installed at the discharge hole formed in the lower portion of the vacuum storage silo; a feed pipe is arranged on the side of the feed box, the feed pipe is communicated with the feed box through a conveying pipeline, and a conveying mechanism is installed in the conveying pipeline; a shut-off cylinder is installed on the top of the feed pipe, and a piston rod end of the shut-off cylinder downwards penetrates through the feed pipe to be connected with a shut-off valve; a material taking cylinder and a material taking pipe which can slide up and down are installed on the support, and a piston rod of the material taking cylinder is connected with the material taking pipe; the upper end of the material taking pipe is communicated with the vacuum storage silo through a connecting hose. According to the self-circulation minimal adding device, the functions of minimal material taking and minimal adding are achieved simultaneously, and the problem of measurement fluctuation of packaging quality can be solved.

Description

technical field [0001] The invention relates to a self-circulating micro-addition device, which belongs to the technical field of packaging metering equipment. Background technique [0002] With the continuous development of packaging measurement technology and automation technology, the degree of production automation is getting higher and higher. With the demand for mass production, quantitative packaging scales are more and more widely used in the packaging field. However, due to the inherent physical characteristics of the material itself, the material will always be more or less bonded to the inner wall of the discharge box of the packaging scale. When the amount of material accumulates to a certain extent, the accumulated material will fall off, causing the weight of the packaged material to fluctuate greatly within a certain period of time, causing certain economic losses to both the manufacturer and the consumer. , produce adverse effects, especially in the case of...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a self-circulating micro-adding device, which has an ingenious and reasonable structure, and at the same time has the functions of micro-feeding and micro-dosing, which can well solve the problem of unstable packaging quality fluctuations. problems, improve the economic benefits of production enterprises

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