KL 121

CNC-controlled sewing unit with rotating sewing head for closing airbags

Features

• Sewing machine X-axis driven, template Y-axis driven
• 360° rotating head with alternating double transport for perfect seam results in the multi-directional sewing process
• Stitch type: 1- or 2-needle double chain stitch, alternatively 1- or 2-needle double lock stitch
• 360° turnable sewing head with needle transport
• Exact seam pattern / thread pull in all sewing directions
• Automatic material transfer and discharge system
• Easy exchange of the transfer- and material fixation unit
• Overlapped operation during the sewing process
• Intermittent feed (feed stop when needle enters material)
• Switchable needle feed (on/off)  for continuous sewing with the highest seam quality
• Sewing head, pneumatically liftable (75 mm) for direct access to any seam position
• Thread tension, manually adjustable
• Lower thread monitoring by stitch counter
• The touch screen operator panel ensures intuitive operation and features a modern and clear layout. The seam may be monitored in real time on the screen
• The automatic detection of the material clamp for added process reliability
• The sewing area is protected by a light-barrier (CE compliant)
• Pneumatic sewing foot height adjustment (two-stage)
• Clamping device for the fixation of the sewing template in the sewing area

Options

• Second thread tension can be pneumatically activated via program
• Upper thread clamping device for a neat seam start
• Electronical thread tension monitoring
• Upper thread monitor via sensor
• Bobbin thread monitor via stitch counter (only lockstitch-version)
• Fully-overlapped working method due to two feeding table (left/ right) or an inseration table or a template changer table
• Customized interchangeable frame (s)
• Free programmable height of the presser foot, pneumatic/electromotive, as well as second thread tension – adjustable during the sewing process
• Integration of safety relevant quality monitoring systems, such as monitoring of material layer, loading etc.
• Various thread separating units, depending on customer demands
• Integration of automatic top- and/or bottom tape feeder for seam reinforcement with tape cutter and tape advance unit
• Pneumatic needle cooler
• Various options available to upgrade the machine (RFID sensor, barcode scanner etc.)
• Continuous thread tension (via  proportional valve)
• Free-programmable upper thread tension with tension gauge
• Electronical height adjustment of the sewing foot