A door-scraping hopper for quantitative discharge of viscous materials

Abstract

The invention discloses a door scraping hopper for quantitative unloading of viscous materials. The door scraping hopper comprises a hopper frame, a hopper main body, a feeding door, a discharging door, a first driving device for driving the feeding door, a second driving device for driving the discharging door, a controller, a weighing sensor, an alarm, an air pipe, a scraping blade and a hingingshaft; the air pipe and the scraping blade are located on the outer surface and the inner surface of one side of the hopper main body; and the discharging door is hinged to the hopper frame through the hinging shaft, the air pipe is provided with an electric air valve, the weighing sensor is mounted on the hinging shaft and transmits information to the controller. The preset weight value is set,and the controller controls opening and closing of the first driving device, the second driving device, the electric air valve and the alarm. According to the door scraping hopper, automatic quantitative unloading can be achieved, and the unloaded actual materials have the small error relative to the detected weight.

Description

technical field [0001] The invention relates to the field of hoppers, in particular to a door-scraping hopper for quantitative discharge of viscous materials. Background technique [0002] With the continuous improvement of the degree of mechanization, a variety of hoppers have been developed and widely used in production practice. Since the different properties of the material determine the structure and function of the hopper, the design of the hopper needs to be different according to the nature of the material. [0003] At present, sticky materials are prone to retention problems during feeding, resulting in large material weighing errors and low feeding accuracy. When the hopper is used as a weighing hopper, most of them only detect the weight of the material put into the weighing hopper. When the input material is viscous material, the viscous material is easy to stick to the inner surface of the hopper main body. If only the weight of the material put into the weighi...

AI Technical Summary

Problems solved by technology

[0003] At present, viscous materials are prone to retention problems during feeding, resulting in large material weighing errors and low feeding accuracy, and when the hopper is used as a weighing hopper, most of them only detect the weight of the material put into the weighing hopper

When the input material is viscous material, the viscous material is easy to stick to the inner surface of the hopper main body. If only the weight of the material put into the weighing hopper is detected without considering the material sticking to the inner surface of the hopper main body after being put into the hopper, then The actual material after unloading has a large error relative to the detected weight, and the current weight of the unloaded material cannot be controlled when the hopper is unloaded, and automatic quantitative unloading cannot be realized

Images