Tengely elfordító rendszer ELTURNER

FUNCTION

Web guiding with ELTURNER turning bar systems is based on a simple principle: A bar is mounted at an angle of 45° to the longitudinal and transverse axes while the web runs over it with 180° wrapping. This has the immediate effect of changing the direction of web travel by 90°. To correct the web at the same time, the turning bar is moved parallel to the infeed plane according to the actuating signal, thus offsetting the web to the side as it runs off.

AREA OF USE

Use of a turning bar control system for web guiding is recommended in cases where space restrictions prevent the use of an ELGUIDER or ELROLLER system after the 90° deflection.

APPLICATION

When the turning bar is used as a web guide, there must be points of traction between the bar and the web. To protect the web surface, the friction can be reduced by inserting an air cushion between the turning bar and the web. Guiding precision of up to ± 1 mm can be achieved. For improved dynamic adjustment, a guide roller should also be moved together with the turning bar. The distance between the guide roller and the locking roller should correspond to half the web width. The sensor should be mounted immediately after the outfeed roller as close as possible. 

A combination of pivoting frame and turning bar causes the web to turn and at the same time ensures precision positioning control in the range of ± 0.1 mm.

Tengely elfordító rendszer

  • Individual adjustment of the turning bars to the machine environment
  • Control components and complete systems with turning bar available
  • Optional turning bar with pneumatic ventilation

Technikai Adatok

Érzékelők

  • Infrared edge sensor based on the principle of retroreflection
  • Field of view ±10 mm with a resolution of 0.02 m
  • Distance-independent edge evaluation based on parallel light beams
  • Acquisition of edges and threads
  • Scanning with CCD array guarantees a stable operating point independent of the material transparency

Technikai Adatok

  • Ultrasonic edge sensor with digital evaluation
  • Field of view ±10 mm
  • Fork widths 30, 60 and 124 mm
  • Insensitive to soiling due to dust
  • Scanning of materials opaque to sound such as paper, plastic and metal films independent of the material transparency

Technikai Adatok

  • Infrared transmitted light sensor with large field of view of 150 mm
  • Electronic web offset in the sensor field of view without manual adjustment of the sensor
  • Scanning of homogeneous materials such as non-woven fabric, woven and knitted fabrics up to a transparency of 70%
  • Simultaneous evaluation of up to four edges
  • Insensitive to external light

Technikai Adatok

  • Ultrasonic edge sensor with digital evaluation
  • Field of view ±3 mm
  • Fork widths 30, 60 and 124 mm
  • Insensitive to soiling due to dust
  • Scanning of materials opaque to sound such as paper, plastic and metal films independent of the material transparency

Technikai Adatok

Érzékelő helymeghatározás

  • Motorized linear position adjustment for ultrasonic, infrared and color line sensors
  • Versions with 1 and 2 motors
  • Compact design with integrated, temperature-monitored, short circuit-proof motor and control electronics
  • CAN bus connection for straightforward connection to the web guider
  • Functions such as sensor pre-positioning, edge search, move clear and width measurement possible

Technikai Adatok

  • High positioning and repeating accuracy through powerful direct current drive 
  • High actuating speed thanks to low play toothed belt drive
  • Complete electronics integrated as module in support beam. Rapid exchange of components through plug-in cable connections
  • Compact desire through stable aluminum profile; all guide elements are located in the housing and are protected against soiling by a cover strip.

Technikai Adatok

Pozicionáló és irányító állomás

  • For use with web guiding systems in the paper and film industry
  • Multiple operation of up to eight web guiding control loops
  • Selection of the country-specific language
  • Integrated backup option to save the device setting 
  • Intuitive operation
  • User-friendly commissioning via configuration wizard

Technikai Adatok

Kapcsolatfelvétel / ajánlatkérő