Title:
PACKAGING MACHINE
Document Type and Number:
WIPO Patent Application WO1999057012
Kind Code:
A3
Abstract:
The invention relates to a packaging machine for wrapping and/or enclosing products of varying dimensions, sizes and consistency in packaging material such as paper, bags, cans or the like. The inventive packaging machine comprises individual processing units to each of which a drive with a control unit is assigned. Predetermined movement rules, (time-path functions) are processed by said control units. The invention also comprises sensors for detecting the operational state, whereby the movement rules of the corresponding drive are scaled when the synchronization between the packaging material and the product to be packaged deviates, that is to say they experience an extension or compression with regard to the time axis, and/or the movement rules are modified by changing the shape of the curve, and/or the combination and/or the superposition of different curves. The resulting path-time rule is constant and constantly differentiable, whereby either the acceleration change in the non-differentiable points of the speed-time rule is less than a predetermined limiting value, or the resulting speed-time rule is constantly differentiable.
Inventors:
FERTIG ERWIN (DE)
Application Number:
PCT/DE1999/001349
Publication Date:
December 29, 1999
Filing Date:
May 05, 1999
Export Citation:
Assignee:
ELAU ELEKTRONIK AUTOMATIONS AG (DE)
FERTIG ERWIN (DE)
FERTIG ERWIN (DE)
International Classes:
B65B41/18; B65C9/44; (IPC1-7): B65B57/00
Foreign References:
| US5724786A | 1998-03-10 | |||
| EP0542393A2 | 1993-05-19 | |||
| EP0336012A1 | 1989-10-11 |
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