Gathering of Signatures at the Primera and Presto II Saddle Stitchers Prior to Perfect Binding
At the saddle stitcher, the signatures are usually opened and placed one above the other on the gathering chain. The new software option for the Primera and Presto II saddle stitchers enables the pre-gathering of signatures into book blocks prior to perfect binding.
The new function allows using saddle stitchers from Muller Martini even more flexibly since their range of applications can be easily extended. The option, which can be retrofitted at any time, is attractive for customers who are versatile in the field of print finishing and offer both saddle stitching and perfect binding in house. In the future, they can simply pre-gather book blocks at the saddle stitcher and then transfer them manually to the perfect binder, thereby increasing their productivity considerably, especially for relatively short runs.
The function is integrated with the control system of the saddle stitcher and available as a software option. Existing saddle stitchers can also be retrofitted, without the need for any mechanical modifications. The folded signatures of the book block are placed individually on separate segments of the gathering chain. While the stitching machine is deactivated, the signatures are gathered via a shingle delivery or the Perfetto compensating stacker and delivered (see operating diagram).