Transversal Cutting Equipment for Sheets Separable From Overlapped Continuous Forms

A transversal cutting equipment for sheets separable from overlapped continuous forms, wherein said forms are longitudinally divided from a basic continuous form for producing documents with a single sheet or with more sheets, wherein the documents and the respective sheets are printed according to a predetermined order, and wherein the sheets are transversely cut and longitudinally extracted and moved;

• the said equipment comprising:
• a cutting device, actuatable for joined separation of the sheets from the overlapped forms;
• an extractor device for extracting and moving forward sheets separated by the cutting device;
• an accumulating and forwarding device for the document;
• transport paths, downstream of the extractor device, for transporting the separated sheets, along overlapped paths, to the accumulating and forwarding device;
• and
• at least one arrest device arranged along a pre-defined transport path and actuatable for temporarily arresting a sheet of the pre-defined transport path;
• wherein the cutting device and the extractor device operate in a continuous way, while the accumulating and forwarding device collects the sheet or the sheets of a partially formed document and sends the sheet or the sheets upon the completion of the document;
• and
• wherein said at least one arrest device is actuatable for arresting a cut sheet of a following document, different from the partially formed document and releasing the arrested sheet for being transferred to the accumulating and forwarding device for the formation of the following document.

A transversal cutting equipment for sheets separable from overlapped continuous forms, wherein said forms are longitudinally divided from a basic continuous form for producing documents with a single sheet or with more sheets, wherein the documents and the respective sheets are printed according to a predetermined order, and wherein the sheets are transversely cut and longitudinally extracted and moved;

• the said equipment comprising:
• a cutting device, actuatable for joined separation of the sheets from the overlapped forms;
• an extractor device for extracting and moving forward sheets separated by the cutting device;
• transport paths, downstream of the extractor device, for transporting the separated sheets, along overlapped paths, to the accumulating and forwarding device;
• an actuating motor for driving at least one of the pre-defined transport path;
• and
• control elements for said motor;
• wherein the cutting device and the extractor device operate in a continuous way, while the accumulating and forwarding device collects the sheet or the sheets of a partially formed document and sends the sheet or the sheets upon the completion of the document;
• and
• wherein said control elements arrest the actuating motor for slowing down or arresting a sheet of a following document, different from the partially formed document the following document and accelerating or restarting the actuating motor for the transfer of the sheet of the following document to the device of accumulation and the formation of the following document.

A transversal cutting equipment for sheets separable from overlapped continuous forms, wherein said forms are longitudinally divided from a basic continuous form for producing documents with a single sheet or with more sheets, and wherein the documents and the respective sheets are printed according to a predetermined order;

• said equipment comprising:
• overlapped input passages for the continuous forms cutting mechanisms, actuatable in synchronism for joined separation of the sheets from the overlapped forms;
• an accumulating and forwarding device for the document;
• transport paths, downstream of the cutting mechanisms, for transporting the cut sheets, along overlapped paths, to the accumulating and forwarding device;
• and
• differentiating means for modifying transport times of the sheets along one or more transport paths;
• wherein the cutting mechanisms operate in a continuous way, while the accumulating and forwarding device collects the sheet or the sheets of a partially formed document and sends the sheet or the sheets upon the completion of the document;
• and
• wherein the differentiating means temporarily modifies the transport times so that a cut sheet of a following document, different from the partially formed document, is transferred to the accumulating and forwarding device for the formation of the following document, substantially after the forwarding of the preceding document,
• said cutting mechanisms being of guillotine type and comprising respective counter-blades at different heights adjacent to the respective input passages for the overlapped forms and blades with cutting edges at different heights for cooperating with the counter-blades for the cutting of the two forms;
• and
• the transport paths including transport belts arranged each one downstream of the cutting mechanism of a respective form for the transport of the cut sheets to the accumulating and forwarding device.