Control valve for metering scale

Abstract

The application discloses a control valve for a metering scale. The control valve for the metering scale comprises an upper flange, a lower flange and a rubber tube arranged between the upper flange and the lower flange. A pair of telescopic devices is symmetrically arranged on both sides of the rubber tube with a center of the rubber tube as a midpoint. The telescopic devices comprise a pluralityof vertical columns, supporting plates, cylinders, connecting plates and rubber strips. Two ends of the vertical columns are correspondingly connected with lower end faces of the upper flanges and the upper end faces of the lower flanges. The supporting plates are connected with the vertical columns. The output ends of the cylinders are set toward the rubber tube and are connected with the rubberstrips through the connecting plates after penetrating through the supporting plates. The rubber strips and the connecting plates are arranged horizontally perpendicular to the rubber tube. The control valve has a simple structure, is used to be connected to a feeding tube on the metering scale, and can control the feeding speed well, so that the problem of material bridging is solved effectively.

Description

technical field [0001] The application relates to the field of weighing scales, in particular to a control valve for weighing scales. Background technique [0002] In the prior art, metering scales often have clogging and slow feeding speed during the feeding process of materials. Usually, pneumatic butterfly valves are used to avoid clogging. However, when certain materials pass through the butterfly valve, their fluidity is not good. If it is not good, it will be blocked on the valve plate, resulting in unsmooth feeding. Contents of the invention [0003] The object of the present invention is to provide a control valve for measuring scales to overcome the deficiencies in the prior art. [0004] To achieve the above object, the present invention provides the following technical solutions: [0005] The embodiment of the present application discloses a control valve for measuring scales, which is characterized in that it includes an upper flange, a lower flange, and a ru...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, metering scales often have clogging and slow feeding speed during the feeding process of materials. Usually, pneumatic butterfly valves are used to avoid clogging. However, when certain materials pass through the butterfly valve, their fluidity is not good. Good, it will be blocked on the valve plate, resulting in unsmooth feeding

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