Spring-free one-way valve used on filling machine

Abstract

The invention relates to a spring-free one-way valve used on a filling machine. The spring-free one-way valve used on the filling machine comprises a valve body, a plugging head and a valve element. The plugging head is of an internal hollow structure and is located at one end in the valve body; one end, close to the center in the valve body, of the plugging head is closed; an opening communicating with the outer part of the valve body is formed in the other end of the plugging head; a through hole for communicating the opening and the inner part of the valve body is formed in the side wall ofthe plugging head; the valve element can slidably sleeve on the plugging head so as to open or close the through hole under the drive of a fluid with different flowing directions in the valve body, so that the fluid in the valve body is conveyed unidirectionally. The spring-free one-way valve used on the filling machine provided by the invention has the beneficial effects that according to the one-way valve, the fluid can be conveyed unidirectionally without a spring, the existence of a quick-wear part is avoided, the production cost is saved, and the working performance of the spring-free one-way valve is improved.

Description

technical field [0001] The invention relates to the field of filling machine accessories, in particular to a springless one-way valve used on a filling machine. Background technique [0002] Liquid filling is widely used in food, pharmaceutical daily chemical, oil and other industries, and can fill different high-viscosity fluids. The one-way valve is one of the essential accessories on the filling machine, which is used for one-way delivery of fluid. Most of the one-way valves on the existing filling machines use springs to ensure one-way delivery of fluid, that is, when the fluid is in the forward direction, it overcomes the elastic force of the spring to open the valve core to output the fluid, and when the fluid flows in the reverse direction, it has the same effect on the valve core as the spring Force, the spool cannot move so that the fluid cannot be reversed. The spring is a heavy wearing part of the one-way valve, which is easily damaged and needs to be replaced r...

AI Technical Summary

Problems solved by technology

Most of the one-way valves on the existing filling machines use springs to ensure one-way fluid delivery, that is, when the fluid is in the forward direction, it overcomes the elastic force of the spring to open the valve core to output the fluid, and when the fluid flows in the reverse direction, the valve core has the same effect as the spring. Force, the spool cannot move and the fluid cannot be reversed

The spring is a heavy wearing part of the one-way valve, which is easily damaged and needs to be replaced regularly, which increases the manufacturing cost and labor cost

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