RECOMMENDED BY WORLD S BIGGEST BREWERS

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1 forming FORMING Heye International Process Control RECOMMENDED BY WORLD S BIGGEST BREWERS According to Wilfried Seidensticker and Mark Ziegler, leading breweries benefit from the advantages of the Heye Process Control. This article gives us an idea of this tool, which monitors the pressing process of all plunger mechanisms of IS machines. 38 glass machinery plants & accessories 1/2014

2 Wilfried Seidensticker Product Manager Hot End Technologies es Mark Ziegler Marketing Manager HEYE INTERNATIONAL T AL ety of projects concerning both new and existing glass factories and has honed its skills with the successful completion of numerous projects throughout five continents. One of Heye s particular specialities is the design, engineering and construction of complete greenfield container glass manufacturing plants. RECOMMENDED BY BREWERIES Heye has sold nearly 800 process control systems in recent years and one of the world s Based in Obernkirchen, Germany, Heye International GmbH is one of the foremost suppliers of glass technology, high performance solutions and knowhow to the container glass industry worldwide and, since 2003, has been part of the multinational Ardagh Group. Over the years, Heye s team of expert engineers and technicians has built an enviable reputation for quality and innovation and the company has extensive knowledge of the day-to-day issues of glass manufacturing. Heye is always involved in a variglass machinery plants & accessories 1/

3 FORMING forming largest brewers recommends the use of Heye solutions to its glass container suppliers. Wilfried Seidensticker, Product Manager for hot end solutions at Heye, is proud of this endorsement. High speed production in high quality is a key requirement, especially in NNPB production. At the same time, the use of NNPB means a reduction of energy costs and in both respects, proven process control is mandatory. Heye process control avoids an over pressed and unfilled finish. Both are critical defects when producing a glass container. In addition, the machine operator gains transparency in the production process. The possibility for preventative maintenance is one of the results. BENEFIT: REPEATABLE WALL THICKNESS The needs of every successful product go through a process of evolution. Dr. Michael Kellner, R&D Director at Heye, and his team have recently added further features to Heye process control technology. The feature is called Press Duration Control and guarantees a repeatable wall thickness. In connection with the Heye Process Control, the Press Duration Control can be integrated into many existing IS machines. For the first time, it is now possible to control the individual phases of the pressing process. The patented procedure records how long the plunger stays in the glass and then regulates the pressure and time accordingly. Control of press duration, i.e. the time the plunger remains in the glass, ensures repeatable wall thicknesses, a critical quality feature in glass container production. If the press duration is too short, too much glass flows to the base after delivery of the parison to the blow mould. The result is

4 HE The Heye Process Control is a tool to monitor the pressing process of all plunger mechanisms of an IS-Machine. It simultaneously displays a number of forming events on several selectable graphics and permits to improve the parameter setting by comparing data. Early recognition of beginning malfunctions and the automatic gob size control increase the production Process Supervision by means of the Heye Process Control cavities pressing mechanisms on hand Controller functions for tube height control and plunger position control as Database functionality ven tool for real time display and supervision of all added containing all article depending parameters database for future analyses and statistical evaluations housing Coupling with the IS-Machine control programmable limit val ue s. - ple, bad gob loading etc. can automatically be stopped. Advantages moment all cavities Easy handling Plunger End Positions Plunger Dwell Time (Press Durations) mould Plunger Motions recognisable a thin neck and a thick base. If the press duration is too long, the outer surface of the parison gets too cold. The parison then cannot reheat sufficiently in the blow mould, so too much glass in the neck and shoulder area and a thin base are inevitable. In extreme cases, if the outer surface is too cold, the glass container can even burst open during the final blow. Arturo Garcia from SIVESA in Mexico is impressed: It is fascinating how fast we come to good results. The Press Duration Control from Heye makes related article defects a thing of the past. In addition, fast glass machinery plants & accessories 1/

5 forming FORMING and efficient job changes without long trial and error phases become a reality. In brief, the Press Duration Control solution avoids too short press duration (unfilled finishes, hollow necks, thin shoulders and thick bottoms), while also avoiding a press duration that is too long (press marks, vertical finish checks, thin bottoms, seams in the finish and blank mould seams). CONTROL PRINCIPLE After each pressing process the difference between set-point value and the press duration actual value is determined. If the set-point and the actual value deviate, the controlled pressure (P1) is either increased or decreased a little, as required. This control principle ensures that the press duration actual value gradually approaches the set-point value. By regulating the pressure (P1), it is possible to eliminate different motion times of the plungers from the loading position to the beginning of the pressing process. Constant motion times and therefore consistent press duration times for all plungers within the machine are achieved. The constant pressure stage (P2) determines the force which is used to press the parison against the blank mould profile during the press duration. A pressure stage (P3) can be set to cushion the plunger downward movement. HEYE INTERNATIONAL GMBH Lohplatz Obernkirchen - Germany Tel: Fax: glass machinery plants & accessories 1/2014