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US 8,123,447 B2Granted
Method and apparatus for backing printed products
AssigneeHeidelberger Druckmaschinen AG
InventorsLutz Richter, Siegmar Tischer
Life of this patent
Estimating the term…
Abstract
A method for backing printed products includes feeding signatures to a transport and stitching line of a gatherer stitcher by a plurality of feeders. A plurality of signatures are gathered on the transport and stitching line and forms a folded sheet assembly. The folded sheet assembly is stitched to form a brochure along the transport and stitching line. The spine of the brochure is backed along the transport and stitching line by a pressing apparatus.
Claims15
A method for backing printed products, which comprises the steps of:
- feeding signatures to a transport and stitching line of a gatherer stitcher using a plurality of feeders;
- gathering the signatures on the transport and stitching line for forming a folded sheet assembly;
- determining a product thickness of the brochure with a thickness inspector;
- stitching the folded sheet assembly to form a brochure along the transport and stitching line;
- automatically setting the pressing force of pressing elements and the position of the pressing elements and/or hold-down rollers of a pressing apparatus based on the determined product thickness of the brochure;
- and
- backing a spine of the brochure along the transport and stitching line using the pressing apparatus.
4 more elements
A gatherer stitcher, comprising:
- a transport and stitching line;
- a plurality of feeders disposed along said transport and stitching line;
- a thickness inspector for measuring a thickness of the folded sheet assembly on said transport and stitching line;
- a stitching station disposed downstream of said feeders along said transport and stitching line;
- a pressing apparatus disposed along said transport and stitching line downstream of said stitching station, said pressing apparatus producing a stitched-spine brochure having a rectangular spine, said pressing apparatus having a plurality of pressing elements and hold-down rollers;
- and
- a device for adjusting a position of said pressing apparatus, said device automatically carrying out, based on the measured thickness of the folded sheet assembly, an adjustment of the pressing force of said pressing elements and a position adjustment of said pressing elements and said hold-down rollers.
4 more elements
Dependencies are inferred from the claim text.