Intelligent control system for door seal extrusion process

Abstract

The invention discloses an intelligent control system for a door seal extrusion process. The intelligent control system is characterized in that an intelligent control console controls an extrusion machine to be powered on in a timed mode, and components in the extrusion machine are heated automatically; when the components in the extrusion machine reach a set value, the extrusion machine is started automatically, and a screw in the extrusion machine rotates for 5 min at a constant speed; after the screw in the extrusion machine rotates for 5 min at the constant speed, the extrusion machine is stopped automatically, and the intelligent control console gives out an alarm to remind people to install an extrusion die; after the extrusion die is installed, the intelligent control console sends out an instruction of heat preservation for 20 min; after the heat preservation time is up, the intelligent control console controls the extrusion machine to get into the set debugging status of low-speed starting operation; after the extrusion machine is debugged to be normal, the speed of the extrusion machine is automatically increased to a set value of the intelligent control console; and when the operation speed of the extrusion machine exceeds the preset value, the intelligent control console gives out an alarm, and the intelligent control console controls the extrusion machine to keep constant pressure. The intelligent extrusion machine operation system and the functions of automatically monitoring and adjusting the pressure and flow speed of materials are achieved, and the molding rate of the materials is remarkably increased.

Description

Technical field [0001] The invention relates to the field of extruder screen changing devices, in particular to a door seal extrusion process intelligent control system. Background technique [0002] Refrigerators are a rapidly developing product among household appliances. According to reports from relevant domestic authorities, the output of refrigerators and freezers in my country in 2015 was 150 million units. The refrigerator door seal is a main component of the refrigerator. Nowadays, door seal rubber sleeves are produced with modified PVC particles through an extrusion mechanism. The process control of the extruder is manual operation, and there is no intelligent function, especially in terms of material plasticization and flow rate, which restrict the quality of the rubber sleeve. The key point is that when the flow rate of the material changes, the size of the rubber sleeve changes under the condition of the same speed traction, which directly affects the quality of the...

AI Technical Summary

Problems solved by technology

Nowadays, the door seal rubber sleeve is produced by modified PVC particles through the extrusion mechanism. The process control of the extruder is manual operation without intelligent functions, especially in terms of material plasticization and flow rate, which restrict the quality of the rubber sleeve. The key point is that when the material flow rate changes, the size of the rubber sleeve changes under the condition of the same speed traction, which directly affects the quality of the door seal, and there are quality risks and batch scrapping

Images