Paper Technology Journal 17 - Voith

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6 22 transport system. Since 1996 Voith has used high-speed plate type conveyors instead of the walking beam formerly used, which, due to its complexity, was prone to breakdowns, wear and tear. Another important argument for using plate type conveyors is that they enable precise roll positioning in front of each workstation for winding, pressing, and labelling. This ensures high wrapping quality even with the fastest operating cycles (Fig. 6). As shown by the Huatai PM 10 roll wrapping line, Voith's One Platform Concept developed for paper machines does not end at the Sirius or a standard reel, but also includes the entire roll handling zone. Moreover, by changing only one module, in this case the dispenser station Fig. 6: Wrapped rolls. Fig. 7: Let's roll! 17/04 with feeding system, the Twister concept has been enriched with a new option. This ideally meets specialized customer needs while benefiting from the experience gained on numerous Twister installations. After mainly dealing with the mechanical aspects so far, it is time to take a look at the control system. Normally, the wrapping line is connected to the mill computer, which keeps control of each roll from beginning to end via its wrapping and shipping data. An automation module, therefore, had to be developed for this specific application. This comprises the Rolltronic, a powerful visualization and communications software module individually adjustable to communicate with any kind of mill computer system. However, the special possibilities in China as mentioned above enable operation of the roll transport and wrapping line without a mill computer. For Huatai the Rolltronic software was extended with a special module to take over the tasks of a mill computer. This module generates, manages and prints out the roll barcodes, and to this purpose is directly interfaced to the two Voith VariFlex winders for automatically uploading the cut roll dimensions. After weighing, each roll is then labelled with all relevant data after wrapping. The Rolltronic module saves all the roll data, both before and after wrapping, in respective databases and prints out the shift log and production records. In the same way as the mechanical plantcustomizing, adjustment to specific customer needs merely required a change of module in a very well-proven software. Thanks to systematic application of the Voith One Platform concept to the Huatai PM 10 Twister installation, and smooth commissioning teamwork between the customer and Voith, the maximum capacity of more than 120 rolls per hour was already attained at startup. In fact the normal 2 or 3-stage performance optimization phase was not necessary at all. We are therefore particularly proud of the praise we received from Tian Zhiding, Vice General Manager Huatai, during the official acceptance: “This fully automated roll wrapping line meets all our requirements. It is an excellent reference for Voith.” The rolls are wrapped so well that they arrive at the printers in perfect condition – obviously – even after the toughest journey (Fig. 7). PS: In Huatai I got the impression that the robots felt very happy with their professional treatment by the friendly operators! 7
Anja Lehmann Corporate Marketing anja.lehmann@voith.com Trade fair and more... Voith Paper demonstrates its technological competence and close relationship with customers China Paper Exhibition 2003 5 to 7 November in Peking The China Paper Exhibition is the most important trade fair for the paper industry in Asia and has been held every two years since 1987. With a representative presence at the fair this year, too, Voith Paper has again succeeded in demonstrating its technological competence and in making important contacts with customers. 23 17/04
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Page 3 and 4: Hans Müller Dear Customer, Dear Re
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Page 9 and 10: Axel Gommel Fiber Systems axel.gomm
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Page 15 and 16: Lightweight contaminants containing
Page 17 and 18: This relationship was extended into
Page 19 and 20: 3 Fig. 1: Huatai Group. Fig. 2: Hua
Page 21 and 22: Fig. 4: Huatai PM 10 final section.
Page 23: This dispenser comprises a feeding
Page 27 and 28: At the customer conference, Voith P
Page 29 and 30: When faced with the task of rebuild
Page 31 and 32: Design speed [m/min] 2500 2000 1500
Page 33 and 34: 7 8 Fig. 7: Longitudinal section of
Page 35 and 36: Roland Pechtl Special purpose machi
Page 37 and 38: 6 further, because the rectifier ro
Page 39 and 40: Raw material feed TwinDrum pulping
Page 41 and 42: Erwin Holzinger Paper Machines Boar
Page 43 and 44: 3 the paper is subjected to the fir
Page 45 and 46: 2 Specialists visited the mill and
Page 47 and 48: Kurt Eaton Service kurt.eaton@voith
Page 49 and 50: Volume Loss (%) 7.5 5 2.5 0 Strato-
Page 51 and 52: Robert Kietaibl Voith Paper Service
Page 53 and 54: Monday, 2003-10-27 Opening Ceremoni
Page 55 and 56: The improvements attained thereby a
Page 57 and 58: Alex Piquer Service alex.piquer@voi
Page 59 and 60: 5 Cross Division Cooperation One of
Page 61 and 62: 1 Stroke [mm] 25 20 15 10 5 Shake f
Page 63 and 64: ASN (Average size number) Dryness a
Page 65 and 66: 13 I 12 Case Study I PrintFlex P pr
Page 67 and 68: However, the craft that celebrates
Page 69 and 70: epeatedly into the paper suspension
Page 71 and 72: Buddhist religious ceremonies. It b
Page 73 and 74: Dresden Papier, Heidenau, Germany.
Page 75 and 76:
Bahia Sul Celulose, Bahia, Brazil.
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Paper Technology Journal 17 - Voith

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