Device for folding flaps of box blanks
AssigneeBobst SA
InventorsMichel Baenninger, Pierre Regazzoni
Life of this patent
Estimating the term…
Abstract
A device for folding flaps of box blanks having crease lines transverse to the travel direction of the blanks, for use in a folder-gluer. A rotary member is rotatable around a transverse axis and provided with at least one folding arm. A removable linking device linking to a support secured to a frame of the folder-gluer. An adjusting device adjusts the position of the folding arm with respect to the support. A motor drives the rotary member. A synchronization device of the motor comprises an encoder in desmodromic connection with a drive mechanism for driving the box blanks in the drive direction and a detector of the passage past a reference position of the box blanks on the folder-gluer.
Claims2
A device for folding flaps of box blanks having crease lines extending transverse to a travel direction of the blanks, for use on a folder-gluer, wherein the folder-gluer has a frame and a plurality of crossbars secured to the frame;
- the device comprising
- a drive mechanism operable for feeding the box blanks in the travel direction;
- a rotary member rotatable around an axis transverse to the travel direction and having a free end;
- a motor operable for driving rotation of the at least one rotary member;
- at least one folding arm rotatable with the rotary member being fixed to the free end of the rotary member;
- a removable linking member removably connected to any of the support crossbars secured to the frame of the folder-gluer;
- an adjusting device operable for adjusting the position of the at least one folding arm with respect to the support;
- a synchronization device of the motor comprising:
- an encoder in desmodromic connection with the drive mechanism of the box blanks;
- and
- a detector of the passage past a reference position of the box blanks on the folder-gluer.
Dependencies are inferred from the claim text.