Extruded rolled film control system and extruded rolled film control method

Abstract

The invention provides an extruded rolled film control system and an extruded rolled film control method. The extruded rolled film control system comprises a rolled film storage mechanism, a first infrared detection device, a controller and an alarm. The first infrared detection device comprises a first infrared emitter and a first infrared receiver; the first infrared detection device and the alarm are electrically connected to the controller, separately; when rolled films on the rolled film storage mechanism are stored to a certain thickness, the first infrared receiver cannot receive infrared signals sent by the first infrared emitter, and the controller sends out an alarm signal through the alarm. By adopting the system, field operators can replace the rolled film storage mechanism immediately conveniently, and the overall lengths of the rolled films of cylinders detached from the rolled film storage mechanism are substantially consistent. In a rolled film follow-up processing step, frequency replacement caused by a relatively great length difference of the rolled films can be prevented effectively, and unnecessary waste in a film bag follow-up step is reduced.

Description

technical field [0001] The invention relates to the field of extruded film bag length control, in particular to an extruded roll film control system and method for on-line control of the extruded film bag length. Background technique [0002] In the production process of extrusion roll film, the film bag output from the extruder die is continuously wound and stored by the roll film storage mechanism, and finally forms a roll-shaped roll film. [0003] However, when the diameter of the roll film on the roll film storage mechanism is getting larger and larger, the pulling force on the film bag during the production process will become smaller and smaller, so that the film bag on the outer layer of the roll film will be rolled looser and looser. Therefore, the length difference between each roll of roll film unloaded from the roll film storage mechanism at last is relatively large. In the actual production process, the four rolls of roll film are usually cut together in the fo...

AI Technical Summary

Problems solved by technology

[0003] However, when the diameter of the roll film on the roll film storage mechanism becomes larger and larger, the pulling force on the film bag during the production process will become smaller and smaller, so that the film bag on the outer layer of the roll film will be rolled looser and looser.

Therefore, the length difference between each roll of film that is finally unloaded from the roll film storage mechanism is relatively large

In the actual production process, the four rolls of film are usually cut together in the follow-up process. Due to the large difference in length between each roll of roll film, the short roll film has to be replaced soon after being replaced. Longer film rolls, such frequent replacement of film rolls, not only waste film roll operation time, reduce film roll operation efficiency, but also inevitably cause waste of film bags during the replacement process

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