Polenghi claims Europe’s first extrusion moulded bio-bottle
The Italian company said its breakthrough in making NatureWork’s Ingeo bioplastic more flexible came after a long R&D process.
Read more on Food Production Daily
October 16, 2010
Polenghi claims Europe’s first extrusion moulded bio-bottle
October 10, 2010
Delta EVA injection molding machine automation solutions – Delta, Automation, Electrical – Electrical industry
Zhongda Electrical Division Dentsu Inc. Abstract: This paper focuses on Delta PLC The EVA injection molding automation systems. Based on the analysis in the process is given Overall system analysis and integrated design. For system design and implementation of core issue in essence a separate discussion section. Keywords: EVA foam molding PLC 1 Introduction 2005 years, the rapid development of China’s footwear industry, shoe industry in recent years, the total production of 6 billion pairs, accounting for 51% of world output, exports more than 40 million pairs of footwear have been volume and export volume ranks first in the world. Rapid development in the footwear industry, while domestic shoe-making equipment, relatively low degree of automation, and the world-famous Italian shoe machine there is still a product. In recent years, advanced to the product and meet all customer needs, some strength, and companies have begun to develop the advanced world level products, which makes the PLC, Inverter Man-machine interfaces of modern automation technology in the footwear industry equipment in the field where to start. EVA (ethylene – vinyl acetate copolymer, trade names Ethylenevinylacetatecopolyme) is a new type of plastic footwear materials. EVA foam plastic has a good buffer, seismic, heat, moisture, light, non-toxic, Environmental protection , Abrasion resistance, cold, tension, resistance to chemical corrosion materials, such as shoes need good physical and chemical properties. Complex production process low contrast traditional technology hot EVA, EVA foaming injection molding process used EVA injection molding machine to mold particles inside a direct injection machines, vacuum curing mold foam molding soles, and then through heat, cold shaped box shape. Injection molding is characterized by high yield, a shape, is the most advanced production technology EVA soles. EVA Plastic Foam molding process line footwear industry fast and efficient high-quality high-volume production requirements, so Beishou footwear industry attention. EVA material properties or environmental standards widely used in Europe and the United States footwear exports of green shoes. This article focuses on Delta PLC’s EVA injection molding technology developed route automation system. 2 System 2.1 Technology Principles
EVA granulated plastic injection molding is to join the high-temperature tube, the side melting side of the transfer forward, this time feeding rate (that is, the back injection plastic screw speed) and feed screw speed to match each other, charging pressure control of key parameters. Because of financial and material density (plastic tubes in the material density) stability, and accuracy shooting glue directly affect the precision injection molding products. Process of plastic injection molding machine to complete the major in four movements. Are responsible for opening the closed mold clamping unit, will die within the molded top out from the top of the body, twist the plastic particles into the melt material for tube feeding agencies, and pressure will melt the plastic injection mold plastic fire institutions. Hydraulic system for the maintenance of easy and simple control, injection molding machine into the mainstream. Hydraulic systems rely on the size of solenoid valve opening to control flow through the flow and pressure, and then control the conduct of the action. 2.2 Process Analysis EVA shoes machine the whole system to achieve centralized control of the production process, the main monitoring equipment: a vacuum left mold, right mold vacuum, security bar advance and retreat, material blocking the left bar, right bar resistance materials, security doors down, stand down mode, mode stand up, clamping pressure relief, pressure mold, pressure mold transfer mode, fast slow conversion, proportional valve, back pressure valve, station Pump , Left the gun pump, the right gun pump, vacuum pump, the left feed and right feed, left injection, the right injection, transfer seat motor, 48-channel temperature control. System control process as follows: Situ security door safety bar safety bar back into the mold clamping
Injection only vacuum injection nozzle resistance core material rod into the back seat injection
Resistance curing material pole Nozzle core rod into the security module security sects out products Tuikai &
I am an expert from cnc-machiningparts.com, while we provides the quality product, such as Metal casting , Sheet Metal Fabrication, machining parts Manufacturer,and more.
October 7, 2010
What’s a good molding material if I want a good custom fit?
I’m trying to get measurements in a difficult to reach place. If I can get a good molding of it I may be able to measure it out. Do you have any ideas? The equipment is made of steel (Probably Cast Iron) and hopefully whatever I mold it with won’t cause problems after I remove it.
CNC Plastic Machining – the latest in plastic machining technology
CNC plastic machining stands for computerized numeral controlled plastic machine. As the name suggests these machines are programmed in numbers so that it can drill, grind, rip, and tap etc in the exact position as per your specifications. Accordingly, the operating parameters of the CNC can be altered via a software load program. Plastic injection molding is also comparatively a new area of operation in plastic mold manufacturing.
The importance of plastics today:
The heavy cost of metals has given rise to a huge demand for plastic products. And this has gradually given rise to newer technologies in plastic machining. And among all these technologies, CNC plastic machining is probably most popular for its high productivity and cost effectiveness. These machines are great for rabid prototyping of plastic parts, molds and dies. This machining procedure makes plastic molding a breeze due to factors like temperature and humidity variance does not have to be manually controlled. And of course, as you can see this does have effect on the overall quality of the output.
Checklists for getting the right CNC plastic machine:
The market today is full of plastic machining companies that claim to be the best. But, you should not believe in their tall claims. Here are a few things you should look out for. See, that the machining vendors you are availing your services from have machining, castings and forging ability. Also, find out if they have lead time reduction, close machine tolerances, standardized procedures. The quality of the raw materials used for the purpose also makes a huge difference in the final output.  Also check if they have ISO 9001-2000 plastic machining facility.
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Areas of application of CNC plastic machining:
Among the various areas of application which uses the services ofCNC plastic machining are medical, food, electronics, oil and seismology industries etc. Tensile strength coupled with the ability to perform in extreme temperatures make these kinds of plastics an ideal choice for all the above mentioned industrial sectors. Injection molded plastic is specially used widely in the medical segment as they can be sterilized hundreds of times without degradation.
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Whatever you are of application, order for your plastic machining needs only with an experienced and well known vendor. This is to ensure quality as well as get value for your every penny spent.
I am professional writer, I have written many technical articles. This article is based on Plastic Machining, CNC Plastic Machining, and Plastic Injection Molding.