Bar or tube feeding machine for lathe - uses rollers with pneumatic tyres to reduce noise of handling

摘要

The main patent describes a method of feeding bar or tube material to a lathe. The tube or bar (2) is gripped between sets of three rollers (4) fitted with rubber or plastics tyres (7). The use of rubber or plastics reduces the noise when handling the material (2). Pneumatic tyres can be used, (7), with the internal pressure varied to suit the cross-section of the bar or tube. High pressure is used with circular cross-sections and lower pressures with hexagonal, square, or irregular cross-sections.