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

Polyurethane innovation renders counterfeit protection just a breath away

August 15, 2014 9:34 am ET

A watermark made of nanoscopic polyurethane pillars that remains invisible until it is breathed on has been developed by U.S. students.    More

Image

Funding gives a boost to plastic additives technology

August 13, 2014 9:59 am ET

BRISBANE, AUSTRALIA — Commercializing plastic additives to create tougher acrylic glass is moving closer to realization, thanks to a A$950,000...    More

Image

Penn State Erie announces plastics workshops and seminars

August 13, 2014 9:51 am ET

Penn State Erie's Plastics Training Academy has scheduled the following workshops and seminars for plastics companies and mold-makers online and at...    More

CoreTech introduces new version of Moldex3D

August 13, 2014 9:54 am ET

CoreTech Systems Co. Ltd. has released Moldex3D R13.0, with customer-driven improvements of functionality, work flow, computing efficiency and user...    More

Molder adds coordinate measuring machine

August 13, 2014 9:53 am ET

Custom injection molder MME group Inc. added a Micro-Vu Excel 502 coordinate measuring machine to its quality lab, at the plant in St. Paul, Minn.    More

Market Reports

Thermoformed Packaging 2014 Market Review & Outlook North America

This in-depth report analyzes economic and market trends, legislative/regulatory activity impacting supply and demand, business opportunities and threats, materials pricing, manufacturing technology, as well as growth strategies being implemented by thermoformed packaging companies.

Learn more

Pipe, Profile & Tubing Extrusion in North America 2014

U.S. demand for extruded plastics is expected to grow by 3 percent in 2014, with PVC remaining the largest segment.

Plastic pipe will post the strongest gains through 2018, continuing to take market share from competing materials in a range of markets.

Our latest market report provides in-depth analysis of current trends and their financial impact on the pipe, profile and tubing extrusion industry in North America.

Learn more

2014 Injection Molding Industry Report

GROWTH, OPPORTUNITY IN SIGHT FOR INJECTION MOLDERS IN 2014

In the wake of the economic turbulence earlier in this decade, molders today find themselves in much better shape. Molders are gaining a competitive advantage by investing in people, equipment and seeking inroads into new markets on a global scale.

Growth in the injection molding industry is going to be driven by low financing costs and a continued move to reshore some business.

Learn more

Upcoming Plastics News Events

September 10, 2014 - September 12, 2014Plastics Caps & Closures 2014

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

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

More Events