SLIDING RESISTANCE ADDING DEVICE FOR WEFT KNITTING MACHINE

摘要

A sliding resistance adding device for a weft knitting machine capable of adding a sliding resistance applying less load to the movement of a carriage and capable of being rapidly and securely stopped when entrainment is stopped. A permanent magnet (23) adds a first sliding resistance between a holding arm (21) and a guide rail (25). An electromagnet (26) magnetically adding a second sliding resistance in the clearance thereof from the holding arm (21) is fitted to the carriage (13). When the carriage (13) stops moving, though the holding arm (21) attempts to continuously move by inertia, a sliding resistance formed of the sum of the first sliding resistance and the second sliding resistance acts on the holding arm (21) to rapidly stop it. When the carriage (13) entrains the holding arm (21), a load thereon can be reduced since the second sliding resistance does not act thereon. When the carriage (13) starts the entrainment of the holding arm (21), a difference between the first sliding resistance and the second sliding resistance forms a sliding resistance to reduce the sliding resistance acting thereon in starting the entrainment so as to reduce the occurrence of impact and noise.