Buckle folding machine with adjustable folding gap widths
US6475129B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 19, 1999 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | Nov 19, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2511/22
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A buckle folding machine is provided with a device with which the folding rollers (W1 through W5) can be automatically set to different folding gap widths as a function of the measured or calculated thickness of a sheet of paper or stack passing through the folding gap (F1 through F4). The folding rollers to be adjusted are mounted on pivoted levers (22), which are mounted coaxially in pairs and which be pivoted against permanent restoring forces under the effect of electrically controllable adjusting members (S1 through S5). The adjusting members are actuated by an electronic process computer, which calculates the folding gap widths to be set in the particular case according to a preset working program from measured and/or manually entered paper thicknesses or stack thicknesses and/or fold types. The adjusting members (S1 through S5) comprise a plurality of pneumatic working cylinders, which are arranged in a row in a cascade-like pattern, and whose working strokes mutually add up. The setting of the folding rollers can thus be performed very rapidly and also temporarily for even a short duration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.