Integrated anti-leakage type batching valve

Abstract

The invention discloses an integrated anti-leakage type batching valve which mainly comprises a two-position combined cylinder, a large-flow conical valve, a small-flow conical valve and two compression springs, wherein the small-flow conical valve is arranged in the large-flow conical valve; and the opening and closing of the small-flow conical valve and the large-flow conical valve are controlled by the two two-position combined cylinder and the compression springs. The two-position combined cylinder can be controlled by an electromagnetic valve to produce three working states, namely a state that a material outlet is completely closed, a state that a small-aperture fine material outlet of the material outlet is opened and a state that the material outlet is completely opened. The integrated anti-leakage type batching valve has the advantages of compact and rational structure, good sealing property, high batching speed, high preparation precision and the like; the requirements on the batching speed and precision can be met, and meanwhile, the sanitary environment of a workshop is improved; and the integrated anti-leakage type batching valve is most suitable to be used in a batching system of a cigarette factory and is applicable to other automatic operation on liquid raw materials.

Description

technical field [0001] The invention relates to a liquid dispensing valve, in particular to a dispensing valve used in the automatic preparation of flavors and fragrances in cigarette factory threads, and belongs to the field of tobacco machinery. Background technique [0002] At present, there are mainly two types of raw material preparation and discharge valves used in cigarette factories: 1. Large and small pneumatic ball valves + throttle valves, 2. Valve positioner + V-shaped pneumatic ball valves. Among them, the structure of large and small pneumatic ball valve + throttle valve is mainly to connect a large diameter pneumatic ball valve and a small diameter pneumatic ball valve + throttle valve in parallel on the raw material discharge pipeline. The pneumatic ball valves are all open; when the precision is controlled, the large-diameter pneumatic ball valve is closed, and the raw material flows out from the pre-adjusted throttle valve and the small pneumatic ball valve...

AI Technical Summary

Problems solved by technology

However, both of the above two batching valves have defects such as many parts, and it is impossible to avoid the leakage phenomenon of the pipeline after the batching is completed, which seriously affects the cleanliness of the workshop. If an anti-drip device is added to the original system, the whole system will be broken. It is more complex, too lengthy, takes up a lot of space, and has high requirements for upper-layer equipment, making it difficult to implement

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