Screw conveyor automatic feeding device in blown film production line

Abstract

The invention relates to a screw conveyor automatic feeding device in a blown film production line. The screw conveyor automatic feeding device in the blown film production line comprises a storage hopper and is characterized in that the screw conveyor automatic feeding device further comprises a screw conveyor, a motor, a feeding starting electronic feedback device and a feeding stopping electronic feedback device, wherein the screw conveyor and the motor are located in the storage hopper and the feeding starting electronic feedback device and the feeding stopping electronic feedback device are arranged on an extruder hopper, an outer wall is fixedly arranged outside the screw conveyor, a screw conveyor sheave is connected with the lower end of the screw conveyor, one end of a motor shaft is provided with a motor sheave, and a screw conveyor power driving mechanism is formed by the motor sheave and the screw conveyor sheave through a driving belt; a thrust bearing assembly is arranged at the lower end of the screw conveyor and a self-aligning bearing assembly and a pressure bearing assembly are arranged at the upper end of the screw conveyor. Compared with a negative-pressure feeding device provided with a motor with the same power, the screw conveyor automatic feeding device in the blown film production line has the advantages that the screw conveyor automatic feeding device is in the feeding state for only 10 minutes per hour, so that energy consumption is reduced by 75%; dust separation is thoroughly avoided, raw materials are saved, and the problem of environment pollution is solved; the phenomenon that the humidity of the raw materials exceeds the standard due to the fact that the raw materials absorb too much moisture is prevented and the first-pass yield of products is improved to a large extent; allocation of manpower resources can be reduced through automatic control.

Description

technical field [0001] The invention belongs to plastic film processing machinery, in particular to an auger automatic feeding device for a blown film production line. Background technique [0002] At present, the production process of the feeding process of the known blown film production line requires that the raw materials that have been mixed according to the ratio in the ground storage hopper need to be fed by negative pressure, and the raw materials are sucked through the pipeline by a negative pressure pump and set in the extrusion In the lower hopper on the upper part of the machine. There are the following defects in the process of use: slow feeding, an average of 40 minutes per hour in the feeding state, so that the production energy consumption remains high; part of the dust will be separated from the raw materials during the feeding process, and discharged to the ground or air through pipes In the process, not only the waste of raw materials is caused, but also ...

AI Technical Summary

Problems solved by technology

There are the following defects in the process of use: slow feeding, an average of 40 minutes per hour in the feeding state, so that the production energy consumption remains high; part of the dust will be separated from the raw materials during the feeding process, and discharged to the ground or air through pipes In the process, not only the waste of raw materials is caused, but also the discharged dust pollutes the environment; during the feeding process, the operator needs to manually control the opening or closing of the negative pressure feeding pump through the window of the lower hopper of the extruder; due to the summer air Humidity is high, and long-term suction will mix moisture into the raw materials at the same time, which will cause air bubbles in the product and affect product quality

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