This year, the injection moulding machine manufacturer ENGEL Austria GmbH (Schwertberg, Austria) held a symposium, where the latest developments and applications in the field of injection moulding and machine engineering were presented.
Among all the symposium exponents, one was really impressing to me which is part of the program for medical part production and due to my project, which was related to pharmaceutical industry, it was in special point of interest (for short overview of the pharma-mould project click here):
The part is a drip chamber with an integrated filter for blood transfusions (Figure below). It was produced on a three-component injection moulding machine (e-victory 160 combi 3K). One plasticising unit is placed horizontally, one vertically and the third one with 45° in between. As you can see in the picture, three different polymers are necessary: the needle shaped part is made of polystyrene (BASF 168 N) and the hollow body is made of polypropylene (Borealis HJ875MO).The ring combining those two parts is made of polypropylene as well (RB845MO).
The overall cycle time is 14 s and the part has a weight of 6.6 g.
The mould manufacturer is Hack (Germany) and the mould concept is quite amazing:
The injection of the needle shaped part (polystyrene) and of the hollow body takes place at the same time. The movable mould half is split into two separate mould inserts where one has the needle part and the other the hollow body. After cooling both parts down, the mould opens and the two movable mould sides turn 90° to each other for injection material to form the ring for assembling the two parts. And after ejection it can be scanned for quality and directly packed. In this way, production of hundreds of thousands parts is ensured.
Figure – Moulded part: Step 1: injection of melt for the needle shaped part and the hollow body, Step 2: turning the mould sides to each other and inject material for the ring, Step 3: ejection of the assembled part
Kind regards
Herwig
I admire this article for the well-researched content and excellent wording. I got so involved in this material that I couldn’t stop reading. I am impressed with your work and skill. Thank you so much. Plastic injection mold manufacturing
ReplyDeleteDear Laura, thank you for this feedback! I am glad to hear that you like this post and my blog! best regards, Herwig
ReplyDeleteYour designs are incredible, you have shared fabulous ideas about Major Factors on Plastic Injection Molding Quality. I would like to thank you for sharing these types of interesting articles. Custom Tubing
ReplyDeleteThanks Robert! Glad to hear that! Greetings, Herwig Juster
ReplyDeleteExact information, this information is excellent, informative and very important for everyone. I am very very thankful to you for providing this kind of information. Thanks once again for sharing it. Powertrac Tractor
ReplyDeleteThis is important and essential information that is shared by you. This info is meaningful and important for everyone to increase our knowledge about it. Always keep sharing this kind of info. Thank you once again for sharing it. latest tractor price
ReplyDeleteSuch a nice blog. This shows your hard work towards your destination.
ReplyDeleteTata 407
This comment has been removed by the author.
ReplyDelete