Patent ID: 9193127
Filing Date: 2015-11-24
Classification: B29C,B31F

Abstract:
1. A single facer for producing a plurality of types of single-faced corrugated paperboard sheets having different flute configurations, comprising: a plurality of corrugating roll pairs, corrugating rolls in each pair being arranged in a vertical direction; a plurality of cartridges each pivotably supporting a pair of corrugating rolls, each of the cartridges being adapted to serve selectively as (i) an operational cartridge supporting one of the corrugating roll pairs, when located in an operational position where one type of single-faced corrugated paperboard sheets is produced, or (ii) a rest cartridge supporting the one of the corrugating roll pairs, when located in a rest position where no single-faced corrugated paperboard sheet is produced, the operational cartridge and the rest cartridge being configured such that the operational cartridge is held in the operational position from below by the rest cartridge positioned in the rest position; a single facer body having a frame structure that forms a transfer space therein for the cartridges; a vertical transfer passage extending vertically in the single facer body and including the operational position and the rest position between which the cartridge is transferrable in the vertical direction; a lateral transfer passage extending laterally in the single facer body and including at least two retraction positions and the rest position between which the cartridge is transferrable in a lateral direction; a lifting and lowering device operable to lift or lower the cartridge between the operational position and the rest position along the vertical transfer passage; and a conveyance device operable to convey the cartridge between the retraction positions and the rest position along the lateral transfer passage.