Winding and weighing equipment for EVA film roll production system

Abstract

The invention relates to winding and weighing equipment for an EVA film roll production system. The winding and weighing equipment comprises a winding bottom plate; two supporting frames with rotatingplate shafts are arranged on the winding bottom plate; the rotating plate shafts are fixedly connected with supporting rotating plates; containing grooves are formed in the supporting rotating plates; and three guide roller assemblies and three winding shaft assemblies are connected between the two supporting rotating plates. The winding and weighing equipment also comprises a roll supporting assembly; a lifting assembly is arranged below the roll supporting assembly; a weighing sensor is arranged between the roll supporting assembly and the lifting assembly; the winding shaft assemblies comprise winding shafts arranged in the containing grooves; first supporting shaft bearings, second supporting shaft bearings, pressing arm supporting shafts and rotating sleeve supporting shafts are arranged on the supporting rotating plates; rotating sleeves are arranged on the rotating sleeve supporting shafts; the rotating sleeves are fixedly connected with bolts with threaded sleeves; pressing arms with opening grooves are arranged on the pressing arm supporting shafts; and pressing shaft bearings are arranged on the pressing shaft arms. The winding and weighing equipment also comprises winding shaft driving assemblies and a rotating plate shaft driving assembly. The roll changing time is short, a film roll cut into two halves can be simultaneously wound, and the winding and weighing equipment has winding and weighing functions.

Description

Technical field [0001] The invention belongs to the technical field of EVA film production equipment, and particularly relates to a rewinding and weighing equipment used in an EVA film roll production system. Background technique [0002] EVA (polyethylene-vinyl acetate resin) film is made by adding various additives such as ultraviolet absorbers, ultraviolet stabilizers, antioxidants and crosslinking agents to the EVA base material. It is thermosetting and adhesive. The film is widely used in current components and various optical products. EVA film is generally produced by extrusion-calendering method or extrusion-casting method. The production process includes melt blending, extrusion, calendering, pulling and winding, etc. [0003] The winding process of EVA film is realized in the winding machine. The traditional winding machine is generally single-station or double-station winding. The double-station winding machine includes two sets of winding shafts and can control two se...

AI Technical Summary

Problems solved by technology

The single-station winder cannot simultaneously wind the film cut in half, while the double-station winder can simultaneously wind the film cut in half, but it is time-consuming and time-consuming to change the roll. The problem of high labor intensity of workers

On the one hand, when the winding is completed and the roll is changed, the film roll needs to be unloaded, re-installed on the winding shaft, and the film can be wound on before the winding can continue. The film production system suspends production; on the other hand, most of the installation methods of the winding shaft are the way that one side of the cylinder is tightened and one side is driven to rotate. If the winding shaft is installed in this way, one end of the winding shaft needs to be manually installed on the driving side first. On the top tightening device, the cylinder top tightening device on the other side drives the top to tighten the winding shaft, which further increases the labor intensity of workers and the time for changing rolls

In addition, after the winding is completed, it is often necessary to manually take out the film roll and weigh it, which is time-consuming and laborious

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