Abstract

The present invention relates to an inversion transfer module (60) for a converting machine having a printing module (16) comprising a first printing unit (17) arranged to print on a top side (S1) of the sheet (1), and a second printing unit (17') arranged to print a bottom side (S2) of the sheet. The inversion transfer module is arranged between the first printing unit and the second printing unit and comprises a first inversion vacuum transfer (62) arranged to contact the first side of the sheet and a second inversion vacuum transfer (64) configured to contact the second side of the sheet, whereby the inversion transfer module is configured to change the side of adherence and transportation of the sheet.

IPC Classes  ?

• B31B 50/00 - Making rigid or semi-rigid containers, e.g. boxes or cartons
• B31B 50/04 - Feeding sheets or blanks
• B31B 50/07 - Feeding sheets or blanks by air pressure or suction
• B31B 50/14 - Cutting, e.g. perforating, punching, slitting or trimming
• B31B 50/22 - Notching; Trimming edges of flaps
• B31B 50/88 - Printing; Embossing
• B41F 5/02 - Rotary letterpress machines for printing on sheets
• B41F 5/24 - Rotary letterpress machines for flexographic printing
• B41F 13/00 - Common details of rotary presses or machines
• B41F 13/56 - Folding or cutting
• B41F 19/00 - Apparatus or machines for carrying out printing operations combined with other operations
• B41F 21/00 - Devices for conveying sheets through printing apparatus or machines
• B41F 33/08 - Tripping devices or stop-motions for starting or stopping operation of cylinders
• B65H 5/22 - Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device
• B65H 5/38 - Article guides or smoothers, e.g. movable in operation immovable in operation
• B65H 29/24 - Delivering or advancing articles from machines; Advancing articles to or into piles by air-blast or suction apparatus
• B65H 29/52 - Stationary guides or smoothers

Abstract

This checking device (200) comprises: - an illumination system (202) for illuminating a peripheral face of each foldable box, - an imaging device (204) for forming a plural image of the peripheral face of a pack of foldable boxes, - an image processing system (206) for: i) detecting in the plural image each peripheral end of the slots separating adjacent flaps, ii) generating a set of data representing the geometry of each peripheral end, and iii) analyzing the set of data so as to determine the width of each peripheral end.

IPC Classes  ?

• G01B 11/02 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness
• B31B 50/00 - Making rigid or semi-rigid containers, e.g. boxes or cartons