An accurate weighing device for powder admixtures

Abstract

The invention relates to a powdery admixture accurate weighing device. The powdery admixture accurate weighing device comprises a weighing hopper, a weighing sensor, a bracket, a flexible steel wire rope, a weighing meter and a blanking device, wherein the weighing hopper is fixed on the bracket; the weighing sensor is arranged at the contact portion of the weighing hopper and the bracket, the bracket is suspended below the weighing meter through the flexible steel wire rope, and the blanking device is arranged in the weighing hopper; by adopting the suspension structure and the sandwich type composite damping structure of the bracket, the influence of vibration on the weighing precision of the admixture can be effectively avoided; by arranging two sets of weighing devices with different precisions and sensitivities, high-efficiency feeding and high-precision discharging can be achieved; by adopting a turn buckle to connect the weighing meter and the bracket, the weighing hopper can be quickly leveled, the weighing sensor is adopted to match with a feeding frequency conversion spiral machine and a discharge spiral ribbon to accurately control the weight of the discharge, and a rotating blade is adopted to stir powder in the weighing hopper to make blanking smooth.

Description

technical field [0001] The invention belongs to the technical field of dry-mixed mortar preparation, and in particular relates to a device for accurately weighing powdery admixtures. Background technique [0002] With the deepening of the concept of environmental protection, the equipment of dry powder mortar mixing buildings is becoming more and more popular. There are many kinds of powder material additives in the dry powder mortar mixture. The amount of additives is small and the price is high. The amount of additives per ton of mortar is several kilograms or even Less, but the stability and accuracy of admixture weighing are important factors affecting the quality of dry-mixed mortar. The traditional powder metering method is completely unsuitable for small material metering. At present, equipment manufacturers all use manual metering, which is labor-intensive and error-prone, resulting in unstable products and increased costs. [0003] There are also some admixture wei...

AI Technical Summary

Problems solved by technology

The traditional powder metering method is completely unsuitable for small material metering. At present, equipment manufacturers use manual metering, which is labor-intensive and error-prone, resulting in unstable products and increased costs.

[0003] There are also some admixture weighing devices in the prior art. For example, the patent No. ZL201610204981.0 discloses an admixture metering device. Although it can realize the weighing of admixtures, the vibration generated during its work will Affect the measurement accuracy; Patent No. ZL201720165131.4 discloses a concrete admixture metering device, which can divide the admixture in the storage tank into two groups for measurement, which is more convenient for weighing small doses, but it also has vibration effects The problem of measurement accuracy; the patent No. ZL201721014211.6 discloses a powder feeding device for concrete mixing stations, which is provided with a vibration buffer between the sensor and the scale bucket, thereby improving the weighing accuracy, but its vibration reduction effect limited; and there are shortcomings in the above-mentioned technologies that the output volume cannot be precisely controlled

Images