Needle valve helps minimize wall thickness

By Bill Bregar
Senior Staff Reporter

Published: January 1, 2014 11:34 am ET
Updated: January 1, 2014 11:35 am ET

Related to this story

Topics Product News

Swiss mold maker Schöttli Group presented a new needle valve concept on a cup lid mold, in an industry first at K 2013.

The mold was running lids on a four-cavity mold at the company’s K show booth, working on an all-electric Arburg Allrounder Alldrive with a clamping force of 150 metric tons.

The needle valve helps minimize the wall thickness for packaging applications, without reducing their high quality and stability, and while boosting output rates by using a higher-number of mold cavities.

The cycle time on the lid was two seconds.

The shutoff needle does not enter the runner, so the melt does not share its path with the needle. This accommodates stack molds with a lower height, and lighter molds, company officials said. The needle valve also allows the use of smaller mold sizes with a higher number of cavities.

Thanks to a patented funnel design, color and material changes can be done without problems.

The concept does not split the melt when it flows around the needle inside the nozzle. There is no lateral pressure on the needle as it is retracted from the meld, during injection.

Schöttli Group is based in Diesenhofen, Switzerland.

Tel. 011 41 52 646 22 74.


Comments

Needle valve helps minimize wall thickness

By Bill Bregar
Senior Staff Reporter

Published: January 1, 2014 11:34 am ET
Updated: January 1, 2014 11:35 am ET

Post Your Comments


Back to story


More stories

Image

Ecojug trims HDPE from milk jugs

December 17, 2014 8:57 am ET

United Diary Inc. has saved 1.7 million pounds of high density polythylene during the production of 80 million of its new Ecojug milk jug design...    More

Image

Amcor unveils hot-fill PET jars that accept metal lug closures

December 17, 2014 8:47 am ET

Amcor Rigid Plastics has developed hot-fill PET jars that accept metal lug closures — which the company claims is a first for food packaging.    More

Image

Heritage Bag adds Gloucester equipment

December 17, 2014 6:00 am ET

Heritage Bag Co. has purchased six bag-making machines from Gloucester Engineering Co. for its new headquarters factory in Roanoke, Texas, which also ...    More

Image

PS foam sheet line features tandem extruders

December 17, 2014 6:00 am ET

Macro Engineering & Technology Inc. if Mississauga, Ontario, has introduced a high-output polystyrene foam sheet extrusion line that has an output up ...    More

Image

Quick-Start manifolds designed to complement Rheo-Pro hot runners.

December 17, 2014 6:00 am ET

MHS Mold Hotrunner Solutions of Georgetown, Ontario, has introduced the pre-engineered Quick-Start line of hot runner manifolds, designed to complemen...    More

Market Reports

Flexible Packaging Trends in North America

Our latest RESEARCH report examines trends in FLEXIBLE PACKAGING impacting the North American market including a review of economic conditions, key drivers of growth, materials pricing, M&A activity, sustainability challenges and the outlook for 2015.

Learn more

Plastics Recycling Trends in North America

This report is a review and analysis of the North American Plastics Recycling Industry, including key trends and statistics based on 2013 performance. We examine market environment factors, regulatory issues, industry challenges, key drivers and emerging trends in post-consumer and post-industrial recycling.

Learn more

Plastics in Mexico - State of the Industry Report

This report analyzes the $20 billion plastics industry in Mexico including sales of machinery & equipment, resins and finished products.

Our analysts provide insight on business trends, foreign investment, top end markets and plastics processing activity. The report also provides important data on exports, production, employment and value of plastics products manufactured.

Learn more

Upcoming Plastics News Events

January 14, 2015 - January 14, 2015Plastics in Automotive

February 4, 2015 - February 6, 2015Plastics News Executive Forum 2015

June 2, 2015 - June 3, 2015Plastics Financial Summit - Chicago 2015

September 16, 2015 - September 18, 2015Plastics Caps & Closures - September 2015

October 27, 2015 - October 29, 2015Plastics Financial Summit - New York - 2015

More Events