SECTOR: COMPONENTS FOR CITY FURNISHING
APPLICATION: painting
PROBLEM:
The realization of a plant for painting of small quantities of metal parts with different dimensions, as flower-pots, fences, street-lamp poles
Specifications :
  • To determine the dimensions of carriers to optimize the loadings
  • Parts with a length over 6.5 m that have not to be subjected to the pre-treatment before painting
  • To avoid loss of time between batches of different colours
  • Space restrictions
 
SOLUTION :
The plant has been realized using two P+F overhead conveyors SYSTEM 2000.The ring for painting of small parts with a max. dimensions of 6500 x 800 mm has trolleys with max. payload of 500 kgs and a cycle cadence of 5 min. Two couples of painting booths in parallel receive the pieces by means of a trolley switch so that different batches can be processed continuously.
Flexibility during the loading and optimizing of the areas have been obtained through the use of slanting buffers at 45°. Buffers also into the oven and into the cooling chain. Speed chain of the pre-treatment and of the painting is 1.5 m/min while the transfer speed is 7.5 m/min. Both speeds are sinchronized so that the ratio between the speeds remains constant 1:5, even they are variable.
We have realized a second line partially indipendent using 2 of the 4 painting booths to paint poles considering their dimension and the small production.
This line can moves forwards and backwards and is present only one trolley assy with a carrier 13 meters long. A specific software controls the productive flow .