Cops and sleeve markings at pallet base - are detected by sensors to operate path direction controls according to yarn type and colour

摘要

The carrier pallets for cops and sleeves carry identifications (28,29,30) on the pallet base (27), to show colour or yarn type and the like. Sensors (12) below the transport plane (26) identify the markings to control the directional guides in the conveyor path for the pallets. The identification markings use different sections where the surfaces have different reflection characteristics for electromagnetic beams. At the monitoring point (7), a beam transmitter delivers a beam at the markings for the reflections to be received by the sensors which discriminate between the reflected light and/or strength. Or the base of the pallet can be in different colours to give reflected light suitable for sensor recognition. The pallet base (27) has a number of concentric discs and/or rings (28,29,30) of different dias. of different reflective qualities and/or sizes for sensor monitoring, or they can be of materials of electrical conductors or semiconductors for the monitoring sensors. The discs and/or rings can also be of a magnetically conductive material, such as ferrite or soft iron. ADVANTAGE - The control of the material movements is resistant to environmental influences and mechanical damage.