Utveckling av nytt koncept till processmaskin

Sammanfattning

Metso Paper offers a front-running range of solutions and services for the

pulp and paper industry. At the baling unit, design solutions are developed

for manufacturing and handling of pulp bales. The machines are continuously

developed to satisfy customer needs. One big step in the development of the

baling line was to remove hydraulics from the machines and replace it with

electrical motors and pneumatics. This was not done on the folding machine

which is still driven by mainly hydraulics.

The focus for this thesis work has primarily been to develop a new folding

machine concept that is not driven by hydraulic power. It was also desired

to make the new machine faster, cheaper and better than the existing

machine.

The work has been carried out in accordance with a product development

method called Participatory Product Innovation, P2I. The method gives a

guideline to the phases that should be carried out in a product development

project. The first phase contains clarification of the customer’s needs,

which is done by interviewing customers and Metso staff. An analysis of the

market has been carried out as well as a study on related technology. The

gained information was used to define the scope of the problem, establish a

mission statement and to create a list of product characteristics. The

concept design phase is divided into concept generation, concept evaluation

and concept selection. These three steps were iterated until a final

concept was selected.

The result of the project is a folding machine driven by both electric

motors and pneumatic drives. The different motions are suspended on linear

guidance. The machine has a shorter working cycle than the existing

machine, it is cheaper, more reliable and probably folds the wrapping paper

better. This is done by applying an electrically driven turn table, bale

stoppers and optimization of the folding arm motions.