EP 0388649 B1 19920122 - FOLDING MACHINE
Title (en)
FOLDING MACHINE
Publication
Application
Priority
DE 3908981 A 19890318
Abstract (en)
[origin: EP0388649A1] A folding machine (1) for shaping folding-box blanks (2) into folding-box tubes includes a frame in which guiding and drive means (4, 6) for the folding-box blanks (2) are arranged and mounted, with the aid of which the folding-box blanks (2) can be moved through the machine (1). At least two continuous, flexible folding belts (13, 14) extend alongside the guiding means (4, 6) and run round two mutually spaced axes (17, 18, 21, 22). The folding belts (13, 14) are used to bend the side flaps (28, 29) of the folding-box blank (2) around the folding lines (31) towards the central piece (27) situated between said flaps. To achieve results without the known pressure-application means, without a crooked folding being produced by the folding belts (13, 14) which run obliquely with respect to the side flaps (28, 29), the rear of each folding belt (13, 14) is provided with a saw-tooth-like profile (19) which compensates the oblique course between the folding belts (13, 14) of the side flaps (28, 29). <IMAGE>
IPC 1-7
IPC 8 full level
B31B 5/36 (2006.01); B31B 50/00 (2017.01); B31B 50/58 (2017.01); B31B 50/62 (2017.01); B31B 50/68 (2017.01); B31B 100/00 (2017.01); B31B 120/30 (2017.01)
CPC (source: EP)
B31B 50/00 (2017.07); B31B 50/58 (2017.07); B31B 50/622 (2017.07); B31B 50/68 (2017.07); B31B 2100/00 (2017.07); B31B 2100/0022 (2017.07); B31B 2120/30 (2017.07)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0388649 A1 19900926; EP 0388649 B1 19920122; AT E71878 T1 19920215; DE 3908981 A1 19900927; DE 3908981 C2 19910131; DE 59000034 D1 19920305; DK 0388649 T3 19920323; ES 2028482 T3 19920701; GR 3003649 T3 19930316
DOCDB simple family (application)
EP 90103384 A 19900222; AT 90103384 T 19900222; DE 3908981 A 19890318; DE 59000034 T 19900222; DK 90103384 T 19900222; ES 90103384 T 19900222; GR 920400051 T 19920123