Stack type flexo printing machine

Description

Flexo printing is a high-pressure method, the printing plate comprises an elastic printing plate (Printing block). The thin fluid color is applied by the anilox roll onto the printing block and from there directly printed onto the printing substrate by exerting reduced pressure.

Sample solution: Stack type flexo printing machine

Sample solution

Compact design

The level of automation of these high-end machines nearly reaches the one of central cylinder flexo printing machines. These machines are very compact and feature short path lengths which highly improves the printing quality.

Features:

  • Frequent use of "on-the-fly roll changers"

  • Electric positioning through positioning spindles


Automation:

  • Simotion D445: Six printing units (18 synchronous axes)

  • Simotion D445: Positioning of form cylinders, anilox roll  (24 positioning axes)

  • Simotion D435: Winder, infeed, web transport

  • ET 200M


Drive:

  • Compact design of printing unit drives and positioning drives   through double motor modules

  • Due to the power compensation, the winders are connected to a common dc link


All advantages at a single glance – our solutions for flexo printing machines

Stack type flexo printing machines

Requirements

Solutions

Flexible production types

for reverse side printing

- individual drives simplify the mechanics for reverse side printing

Connection of external systems

for path monitoring and register control

- pulse encoder emulation with TM41 also for virtual axes

Many product changes

minimized startup waste

– high-speed pre-register through electric synchronization

Many axes

the same performance

- 2-axis modules with minimum space requirements

Long motor cable

connected to a common dc link

– low-cost Basic Line infeed modules (BLM)

Variable format cylinders

variable moments of inertia

– high-speed control circuits with DSC

- mechatronic tools

Register coupling

printing and plate cylinders

– positioning method for different formats with absolute encoders