Spiral feeding scale

Abstract

The invention relates to a screw feeding scale, which is provided with a feeding motor reducer and a screw feeder arranged on a support; the screw feeder includes a silo for storing materials; a skein shaft is coaxially arranged in the silo ; One end of the skein shaft is connected to the rotating shaft of the feeding motor reducer; the impeller or spiral blade is evenly distributed on the circumference of the skein shaft; a weighing mechanism is installed between the screw feeder and the support; the center of the weighing mechanism Corresponding to the setting of the center of gravity of both the feed motor reducer and the screw feeder, the weighing mechanism includes a scale body bracket, a load cell and a scale body support frame arranged in sequence from top to bottom. The invention performs quantitative feeding through the rotation of the twisted wire shaft, so that the material can be fed evenly, which greatly improves the metering accuracy of the material, and can prevent the material from being flushed during the flow. At the same time, adding a weighing mechanism can further improve Control the amount of materials, double guarantee, so that the measurement accuracy is higher.

Description

technical field [0001] The invention relates to a material dynamic weighing device, in particular to a screw feeding scale. Background technique [0002] The screw feeding scale is a mechatronic equipment designed and developed based on the working principle of the constant speed quantitative feeding scale, which integrates conveying, weighing measurement and quantitative feeding control. It is widely used in building materials, metallurgy, chemical industry, electric power, etc. In the flow metering and batching system of non-viscous powder and granular materials in the industrial production department. [0003] At present, the structure of the screw feeding scale is simple and the cost is low, but it is greatly affected by the positive or negative pressure wind at the discharge port, that is: when the discharge port has positive or negative pressure wind, the The flow velocity of the powder is disturbed, and the relationship between the material flow velocity and the moto...

AI Technical Summary

Problems solved by technology

[0003] At present, the structure of the screw feeding scale is simple and the cost is low, but it is greatly affected by the positive or negative pressure wind at the discharge port, that is: when the discharge port has positive or negative pressure wind, the The flow velocity of the powder is disturbed, and the relationship between the material flow velocity and the motor speed is nonlinear, which will affect the measurement accuracy

In addition, the powdery material often produces rushing phenomenon during the flow, which makes the powdery material out of control, produces a large amount of gushing flow, affects normal production, reduces product quality, and even damages equipment

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