Application Example: Jouhsen-bündgens

Needle production line with 20 stations

For the forming, bending and drilling of medical needles, the linear transfer system LS 280 is the alternative to the rotary table.

Challenge

Jouhsen-bündgens is a manufacturer of wire processing systems used in the automotive and electrical industry amongst others. The company was commissioned by a manufacturer of medical needles to engineer a machine capable of producing straight and bent needles at a high cycle rate. And all this in a wide range of diameters and lengths.

Solution

With regard to the high cycle rate, the rotary table would have been first choice. However, due to the large number of process steps and machining stations this was unrealistic. Along came the LS 280. Its concept as a "cut-open rotary indexing table" made it the ideal alternative. It combines a traditional belt transport system with cam drives in the cells, which mechanically interlock the workpiece holders without the need for time-consuming indexing steps.
Products in use
ST model range ST model range
High-torque rotating unit
LS 280 LS 280
Linear Assembly System
We can do away with the additional alignment of the blanks thanks to the high degree of positioning accuracy of the LS280.

Dieter Bartke
Technical Manager of Jouhsen-bündgens

Solutions

  • Needle production line on the basis of a WEISS linear assembly system – the LS 280
  • Its transport concept makes it the ideal alternative to the rotary indexing table
  • Turnkey system including WEISS Application Software (WAS) and commissioning by a WEISS technician
  • High degree of positioning accuracy of ±0.03 millimetres
  • No follow-up indexing required after completion of the processing steps
  • LS 280 linear assembly system has virtually doubled medical needle output
    LS 280 linear assembly system has virtually doubled medical needle output
  • Indexing of needles prior to each processing step is redundant due to the high positioning accuracy.
    Indexing of needles prior to each processing step is redundant due to the high positioning accuracy.
  • The LS 280 combines belt system with cam drive.
    The LS 280 combines belt system with cam drive.