Vertical powder material metering and filling device

Abstract

The invention discloses a vertical powder material metering and filling device which is provided with a hopper, wherein two side surfaces of the hopper are flat surfaces, the front surface is a stepped vertical semi-cylindrical surface, the rear surface is a semi-cylindrical surface of which the axis forms an angle of 45-70 degrees with the horizontal plane, and the upper surface is a stepped surface. A servo motor is arranged on the lower stepped surface of the hopper; a motor shaft of the servo motor is coaxially connected with a blanking screw; the lower end of the hopper is connected with a material guide pipe matched with the blanking screw; an aeration nozzle is arranged close to the bottom of the rear semi-cylindrical surface of the hopper; the upper part of the hopper is provided with a material level sensor and a pair of weighing sensors; and the stepped surface at the upper end of the hopper is provided with an exhaust powder filter and a feed inlet. Through the invention, the powder is effectively prevented from bridging in the hopper, and a material stirring mechanism is omitted; and thus, the structure is simplified, the equipment weight is greatly reduced, and the metering and filling device can implement the metering and filling of powder material by multiple metering methods.

Description

technical field [0001] The invention relates to a powder material metering and filling device, in particular to a vertical powder material metering and filling device. Background technique [0002] The metering hopper of the existing vertical powder screw metering and filling device adopts an inverted conical structure. In order to prevent the powder in the metering hopper from bridging, a material stirring mechanism is required, so that the weight of the device itself is much larger than the weight of the material to be metered. Many, therefore, only the volumetric method can be used to measure or the external weighing system can be used to measure by the weight method, but the weight reduction method cannot be used for measurement. When it is used in combination with equipment such as vertical bag making and sealing packaging machines, since the weighing system cannot be installed on the vertical bag making and sealing packaging machines and other equipment, it can only be...

AI Technical Summary

Problems solved by technology

[0002] The metering hopper of the existing vertical powder screw metering and filling device adopts an inverted conical structure. In order to prevent the powder in the metering hopper from bridging, a material stirring mechanism is required, so that the weight of the device itself is much larger than the weight of the material to be metered. Therefore, only the volumetric method can be used to measure or the external weighing system can be used to measure using the weight method, but the weight reduction method cannot be used for measurement

When it is used in combination with equipment such as vertical bag making and sealing packaging machines, since the weighing system cannot be installed on the vertical bag making and sealing packaging machines and other equipment, it can only be measured by volumetric method. When the measurement accuracy is relatively high, the volume Method measurement cannot meet the measurement requirements, especially for some valuable products, the above problems are particularly prominent

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