Study on Application of PLC and Inverter in Blown Film Extrusion Production Line Control System

2012 ◽  
Vol 542-543 ◽  
pp. 151-154
Author(s):  
Xue Zhong Li ◽  
Zhi Yu Xie
Keyword(s):  
Control System ◽  
Production Line ◽  
Programmable Logic Controller ◽  
Tension Control ◽  
Programmable Logic ◽  
Film Extrusion ◽  
Blown Film ◽  
Line Process ◽  
Blown Film Extrusion

Through analysis of the blown film extrusion production line process, according to the extrusion machine temperature, speed and membrane bubble cooling and tension control, and other aspects of control characteristics, using Mitsubishi FX2N series Programmable Logic Controller (PLC) and INVT inverter as an example, this paper expounds the application in the blown film extrusion production line control system.

Design and Research on the Control System of Magnetic Plate-Type Seeding Production Line

2013 ◽  
Vol 694-697 ◽  
pp. 2051-2056
Author(s):  
Xiao Yue Yan ◽  
Jian Ping Hu ◽  
Chuan Tong Lu ◽  
Xun Wang
Keyword(s):  
Control System ◽  
System Design ◽  
Production Line ◽  
Programmable Logic Controller ◽  
Programmable Logic ◽  
Magnetic Powder ◽  
Seed Filling ◽  
Plc Control ◽  
Plc Control System ◽  
Plate Type

A new magnetic plate-type precision seeding production line and its control system were designed based on the magnetic seed-metering principle. The control system is consisted of DVP-40ES Programmable Logic Controller and LJD-51-XB+ Mico Controller Unit. The PLC control system controls the working flow of the production line. The MCU control system controls turnover movement of the sowing board and up-and-down movement of the seed case for whole tray seed-filling and sowing. Seeding tests for the magnetic powder coated rape seeds showed that the rate of single-seeding, over-seeding and miss-seeding were 90.2778%, 4.6875% and 5.0347% respectively. The seeding speed was 257 trays per hour, an average of each tray with 14s. It meets the requirements of precision seeding. The system design is reasonable and reliable.

scholarly journals Biodegradable Polymer Compounds Reinforced with Banana Fiber for the Production of Protective Bags for Banana Fruits in the Context of Circular Economy

Agronomy ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 242
Author(s):  
Pablo Bordón ◽  
Rubén Paz ◽  
Carolina Peñalva ◽  
Gisela Vega ◽  
Mario Monzón ◽  
...  
Keyword(s):  
Circular Economy ◽  
Environmental Problem ◽  
Ecotoxicity Test ◽  
Banana Fiber ◽  
Film Extrusion ◽  
Blown Film ◽  
Blown Film Extrusion ◽  
Environmentally Friendly Process ◽  
Test Requirements ◽  
Better Than

Bags used to protect and accelerate the ripening of bananas are a clear example of the environmental problem of packaging waste. Small pieces of these non-biodegradable bags are frequently disposed on the soil by accident (environmental conditions and poor handling during the harvest) and remain there for years. This work focuses on the development of protective biodegradable bags reinforced with banana fiber, obtained from waste of the banana plants, thus promoting a circular economy and a more environmentally friendly process. To achieve this, different bio-based composites were tested (processability) by compounding extrusion (biopolymer and banana fiber with different process steps) and blown film extrusion. The bags produced were tested in field and sequentially improved in three generations of biofilms. The results showed that the maximum processable fiber content was 5 wt %. Additionally, the micronizing of the compounds was crucial to simplify the blown film extrusion and improve the smoothness of the bags (scratches avoidance on the banana surface). The final bags (Mater-Bi biopolymer, 5% combed and sieved banana fiber, and 2.5 wt % TiO2 for ultraviolet light filtration), performed better than the conventional ones (faster maturing, i.e., earlier harvest, and easier handling) and fulfilled the biodegradability, composting and ecotoxicity test requirements.

Dynamic modeling of blown-film extrusion

2003 ◽  
Vol 43 (2) ◽  
pp. 398-418 ◽  
Author(s):  
J. Carl Pirkle ◽  
Richard D. Braatz
Keyword(s):  
Dynamic Modeling ◽  
Film Extrusion ◽  
Blown Film ◽  
Blown Film Extrusion

Real‐time wide‐angle X‐ray diffraction during polyethylene blown film extrusion

2008 ◽  
Vol 48 (8) ◽  
pp. 1487-1494 ◽  
Author(s):  
Giri Gururajan ◽  
H. Shan ◽  
G. Lickfield ◽  
A.A. Ogale
Keyword(s):  
Real Time ◽  
Wide Angle ◽  
X Ray Diffraction ◽  
X Ray ◽  
Film Extrusion ◽  
Blown Film ◽  
Blown Film Extrusion

scholarly journals Development of PLA/EVA Reactive Blends for Heat-Shrinkable Film

Polymers ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 1925 ◽  
Author(s):  
Rattikarn Khankrua ◽  
Tanyawan Pongpanit ◽  
Ponchai Paneetjit ◽  
Rungnapha Boonmark ◽  
Manus Seadan ◽  
...  
Keyword(s):  
Ethylene Vinyl Acetate ◽  
Poly Lactic Acid ◽  
Elongation At Break ◽  
Blend Films ◽  
Film Extrusion ◽  
Blown Film ◽  
Twin Screw ◽  
Blown Film Extrusion ◽  
Reactive Blend

Heat-shrinkable films have widely been used for various applications such as shrinkable labels and cap seals. These plastics have generally a short life. The biodegradable polymers can thus be an ideal candidate for such applications. This work aimed to study the stretching and shrinking ratio of poly(lactic acid)/ethylene vinyl acetate through reactive blends system for heat-shrinkable films application. The reactive agents, Joncryl® and Perkadox were used as in situ compatibilizers. PLA/EVA with 100/0, 97/3, 95/5, 93/7, and 90/10 ratios were prepared in the twin screw extruder. Neat PLA and PLA/EVA films were fabricated by blown film extrusion. The results revealed that the elongation at break of PLA in the TD direction was improved when adding EVA. PLA and EVA film with 0.1 phr of Perkadox was found to be sufficient as evident by FESEM micrograph and DMTA results. The films were stretched and shrunk at a temperature of 70 °C. The percentage of shrinkage of the stretched PLA/EVA reactive blend films, two and three times were, 100%, approximately. On the other hand, the four-times stretched films shrunk less than 100% because of the excessive stretching, which resulted in film breakage and defect.

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