Product category:
Mould, Die and Tool Making Subcontracting Services
News Release from: Georg Kaufmann Formenbau AG | Subject: Injection moulding
Edited by the Manufacturingtalk Editorial
Team on 09 April 2007
Multiple in-mould decoration
Georg Kaufmann Formenbau has developed a "duo-lamination" system which enables the multiple in-mould decoration of vehicle interior elements in just one injection moulding machine.
With newly developed mould technology from Georg Kaufmann Formenbau, Busslingen/ Switzerland, it is now possible to mould parts with several differently decorated surfaces in just one injection moulding machine enabling the cost-efficient production of vehicle interior elements The decisive features of the so-called Duo Lamination process are: the innovative combination of two different mould halves for the moulding of the rear sides of the parts with a central rotating cube-shaped block with four identical cavities for the moulding of the front, decorated sides of the parts
This article was originally published on Manufacturingtalk on 30 Aug 2001 at 8.00am (UK)
Related stories
Leading board skills and testing support offered
AB Electronic Assemblies (ABEA) has invested over GBP500,000 to add new services to its portfolio, including bar coding, optical and BGA inspection, finer controls on screen printing and BGA re-work.
Display systems fabrication qualifies to ISO 9001
Leading retail display systems manufacturer has joined the first wave of companies working towards compliance with the new ISO 9001: 2000 quality standard.
the use of pin and/or lug shaped contours for the reliable bonding of the polymers with which the different decorative materials are back-moulded in two separate injection operations.
This bonding technology is currently being patented by Georg Kaufmann Formenbau AG and Peguform , Botzingen/Germany.
For this innovative process, the injection moulding machine must also be equipped with a rotary table mounted on a carriage and a second injection unit.
Further reading
Electronics assembly company expands engineering
In September 2004, Allendale moved into its newly developed and larger UK Engineering and Test areas to keep up with the growing demand for its services.
Multi chip module service extends to production
As a recognised market leader for the manufacture of multi chip modules, a full service EMS company offers assembly and connection technologies for design, development and production.
Weld overlay and cladding flexibility increased
Arc Energy Resources, a specialist in corrosion and wear resistant weld overlay cladding, is completing a comprehensive equipment refit to increase flexibility and capacity by 25%.
The in-mould decorated part is produced on this machine in four stages: In stage 1, the basic decorative material (e.g artificial leather) is inserted from one side of the machine into the vacant, readily accessible cavity of the cube-shaped block.
The rotary table then turns the block through an angle of 90deg.
The reverse side of the decorative material in the cavity now faces the mould half on the stationary platen, where the part is then partially moulded (stage 2).
In stage 3, after a further turn through 90deg, on the other side of the machine the cut-outs for the additional decorative materials are generated.
The prepared pre-cut parts are inserted into the cavity and located with the aid of the pins and lugs that were integrally moulded in stage 2.
The rotary table again rotates the block through 90deg so that the part now faces the mould half on the moving platen, where it is back-moulded by the second injection unit (stage 4).
A further turn through 90deg brings the part back to its starting position, where it is removed from the mould and a new moulding cycle can commence.
The aforementioned integrally moulded pins and lugs are of central importance for the Duo Lamination process, for they serve as an exact means of positioning the additional decorative materials in the mould cavity in stage 3, thus avoiding wrinkles and creases during the subsequent back-moulding operation in stage 4.
What is more, these pins and lugs ensure a reliable, high-strength bond between the separately injected polymers (stages 2 and 4).
The most important area of application for Duo Lamination is the production of vehicle interior elements, which today have to satisfy ever more exacting design and function requirements.
It is for this application in particular that the Duo Lamination system has been designed for a cycle time being compatible with normal mass production cycle times in the automotive industry.
The process is also suitable for applications necessitating a lesser degree of automation, e.g for the production of high-quality decorated parts in the furniture and related industries.
• Georg Kaufmann Formenbau AG: contact details and other news
• Email this article to a colleague
• Register for the free Manufacturingtalk email newsletter
• Manufacturingtalk Home Page
Search the Pro-Talk network of sites
