Screw quantitative feeding system and screw quantitative feeding method

Abstract

The invention belongs to the field of equipment in production lines of PVC (polyvinyl chloride) profiled bars and tube materials, and particularly relates to a spiral quantitative charging system and method. The spiral quantitative charging system comprises a material storage tank, a feeding device, a charging hopper, a quantitative charging device, a material storage hopper, a material storage hopper valve and a control system, wherein the charging device is aslant arranged between a discharging hole of the material storage tank and a feeding hole of the charging hopper, materials in the material storage tank are conveyed to the charging hopper, a discharging hopper of the charging hopper is connected with a feeding hole of the quantitative charging device, the material storage hopper is arranged below a discharging hole of the quantitative charging device, the discharging hole of the material storage hopper is connected with a feeding hole of a material mixer through the material storage hopper valve, and the control system automatically controls the charging hopper, the quantitative charging device, the material storage hopper valve and the material mixer to act through a wired or wireless mode. According to the spiral quantitative charging system, the quantitative charging work of all devices can be automatically completed, the manpower cost is saved, and energy resources are saved.

Description

technical field [0001] The invention belongs to the field of production line equipment for PVC profiles and pipes, in particular to a mixer, and more specifically to a screw quantitative feeding system and a working method. Background technique [0002] Rigid polyvinyl chloride (referred to as PVC-U) profiled doors and windows and drainage pipes are two commonly used materials at present. Profiled doors and windows are building energy-saving doors and windows in the new era. PVC-U drainage pipes are the first choice for construction. develop rapidly. [0003] The production process of PVC profiles and pipes includes extrusion and shaping processes, which are completed by extruders and shaping dies. The extruder is fed by the mixer, and the raw materials used by the mixer are mixed by a variety of materials. During the mixing process, the feeding and transportation are often done manually, especially in the production process of PVC profiles. In addition to a small amount o...

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Problems solved by technology

The automatic PVC material supply system of this patent is not equipped with storage devices such as feeding hoppers, and the screw conveyor needs to be started every time feeding, which is complicated in operation and wastes electric energy; the automatic PVC material supply system of this patent requires manual lifting of large material bags , Manually control the feeding, which wastes manpower; the automatic PVC material supply system of this patent can only use packaged raw materials, and cannot use bulk raw materials, which wastes raw material costs

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