NEEDLE SENSOR 4022

Digital Monitoring of Needles for Circular Knitting Machines

The NEEDLE SENSOR 4022 monitors contact-free the needles on single, double, jacquard and interlock Circular knitting machines. Once a defective needle has been recognized, the NEEDLE SENSOR 4022 stops the machine immediately and indicates the exact position of the broken or bent needle. Depending on the type of the machine, the NEEDLE SENSOR 4022 usually consits of 1 control unit and 1 or 2 optical heads.

  • Machine is immediately stopped once a defective needle has been recognized
  • Detects breakage and bending of cylinder and dial needles
  • Hand-held terminal 8024 as setting aid
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  • Needle sequence

    15/s - 5000/s

  • Easy replacement

    Of the lens

  • Safe red light

  • Max. gauge

    Up to E50

Features

NEEDLE SENSOR 4022 4 digit display

4-digit display for quick identification of the defective needle

NEEDLE SENSOR 4022 control unit

Colour-coded LED status display for each optical head

01 NEEDLE SENSOR 4022

Hand-held terminal 8024 as setting aid

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Easy and safe replacement of the optical lens

NEEDLE SONSOR 4022 OVJA

Also suitable for high-speed Circular knitting machines

Operation

The optical head projects a narrow spot of light onto the passing needles, which reflect a part of the light. These light pulses are fed to the control unit via fibre-optic cable. The control unit automatically adapts to the needle sequence corresponding to the machine speed and the gauge of the needles. If a pulse has not been received at all or not at the correct position due to a needle defect, the machine control is triggered to stop. Simultaneously with the stop signal, a needle counter begins to work. It indicates the number of needles that have to run past until the optical head reaches the position of the defective needle. For the machine operators this is a valuable support when it comes to locating and to replacing a defective needle. Missing needles can be masked out e.g. when working with cutting line or when producing patterns. To avoid false stops, the number of revolutions before stopping the machine is adjustable.

Product tour

03 NEEDLE SENSOR 402206 NEEDLE SENSOR 402207 NEEDLE SENSOR 402202 NEEDLE SENSOR 4022

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Technical data
Downloads (2)
DescriptionValue
Sensor range15mm +/-1 mm
Needle sequence15/s - 5000/s
GaugeUp to E50
Supply voltage11V - 28 V AC/DC
Average power consumption5 VA
OutputRelay output, switchable (max. 60V)
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