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Arburg at Chinaplas: Automated Rotary-Table Press Molds Parts for Mobility Sector

The turnkey system on display includes extensive automation from a local Chinese OEM combined with the German press, also customized locally.

Stephen Moore

April 5, 2024

2 Min Read
Injection molded fluid distributors for automotive applications
Image courtesy of Arburg

A combination of a rotary table injection molding machine and automated parts handling will be operating at the Arburg stand at Chinaplas. The turnkey system will be molding complex fluid distributors for an automotive application made from 35% glass-fiber-reinforced polybutylene terephthalate (PBT), each containing three different metal inserts. The production cell is based on the 200-tonne Allrounder 1600 T with an integrated upstream stamping unit and conveyor system. Parts handling is performed by a six-axis robotic system.


Pillar-free design

Allrounder T vertical injection molding machines from Arburg reportedly are ideal for molding challenging parts. The servo-electric, three-station 1,600-mm-diameter rotary table can perform various rotary sequences. The pillar-free design opens up space for molds and media connections.

A four-cavity mold from Concraft produces four finished parts in a cycle time of around 60 seconds. The shot weight is 74.5 grams.

Automation with dual robots

The automation system delivers three different types of inserts into a tray via a three-axis micro-robot. Then, a six-axis robot with Concraft grippers and a load of 10 kg picks up a total of 12 inserts from this tray, and places them in the four cavities of the mold. After each injection cycle, the robot removes both the sprue and the finished parts.

The turnkey system has been customized with a stamping unit and stamping line conveyor system, also from local partner Concraft. There, the inserts are first stamped out and the pins are separated before they are placed in the mold and overmolded.

Simultaneous operations reduce cycle times

The electric drive and precision positioning system ensure high accuracy of the overall cell and, thus, reliably protect the mold from damage and wear. Simultaneous insertion, overmolding, and removal ensure short cycles.

A large selection of options is available to facilitate flexible configurations, and safety features reportedly exceed the CE standard. Precision is a key attribute of the system, supported by a pressure accumulator and the Selogica control system, which also simplifies setup and operation, according to Arburg. Medical and mobility applications, in particular, will benefit.

Implementation of the Kuka six-axis robot and the total system sequence was handled in the Arburg Technology Factory (ATF) in Pinghu, China.

Arburg is exhibiting at stand D 42 in hall 4.1.

About the Author(s)

Stephen Moore

Stephen has been with PlasticsToday and its preceding publications Modern Plastics and Injection Molding since 1992, throughout this time based in the Asia Pacific region, including stints in Japan, Australia, and his current location Singapore. His current beat focuses on automotive. Stephen is an avid folding bicycle rider, often taking his bike on overseas business trips, and a proud dachshund owner.

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