Apparatus for transporting stacks of paper sheets to processing machines
US5004094A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 8, 1987 |
| Grant date | Apr 2, 1991 |
| Priority date | — |
| Expiry date | Apr 8, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G2203/044
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Apparatus for advancing singularized stacks of paper sheets to a packing machine has an intermittently driven first conveyor which receives groups of abutting stacks at required or fixed intervals and overlaps in part with a continuously or intermittently driven gathering conveyor wherein successive groups are caused to form a continuous row. Successive foremost stacks of the row are taken over by a singularizing conveyor which moves the stacks apart and delivers them cyclically to the packing machine. The gathering conveyor has several sections which are disposed one behind the other in the direction of transport of stacks toward the singularizing conveyor and which can be lifted, individually or jointly, into engagement with stacks above them or lowered below the level of the first conveyor so that the latter can advance the stacks in a direction toward the singularizing conveyor. Detectors are provided to operate cylinder and piston units which raise or lower the sections of the gathering conveyor so that a section is lowered if it is not disposed below a stack or below a set of several stacks. The sections are lifted when the first conveyor is arrested upon completed advancemen…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.