초록 ▼

A system and method for controlling vibration of an axially rotatable mandrel useable for winding sheet material including stretch film thereabout. The system includes first, second and third roller members rotatably contactable with the mandrel and sheet material wound thereabout. The roller member

A system and method for controlling vibration of an axially rotatable mandrel useable for winding sheet material including stretch film thereabout. The system includes first, second and third roller members rotatably contactable with the mandrel and sheet material wound thereabout. The roller members are arranged about the mandrel axis so that the mandrel and any sheet material wound about the mandrel is supportably captured between the roller members to prevent or at least substantially reduce vibration of the rotatable mandrel. At least the first and second roller members are biasable toward the mandrel with pneumatic pressure from corresponding air over oil cylinders, and the first and second roller members are movable away from the mandrel against hydraulic resistance from the corresponding air over oil cylinders to accommodate sheet material wound increasingly about the mandrel. In one configuration, first and second mandrels are rotatably coupled to a rotatable turret that alternately positions the mandrels relative to a power driven lay-on roll, wherein each mandrel has at least one corresponding set of first and second roller members which cooperate with the lay-on roll to prevent vibration of the rotating mandrel.

대표청구항 ▼

[ What is claimed is:] [1.] A system for controlling vibration of an axially rotatable mandrel useable for winding sheet material thereabout, the system comprising:a first roller member rotatably contactable with at least one of the mandrel and sheet material wound about the mandrel, the first rolle

[ What is claimed is:] [1.] A system for controlling vibration of an axially rotatable mandrel useable for winding sheet material thereabout, the system comprising:a first roller member rotatably contactable with at least one of the mandrel and sheet material wound about the mandrel, the first roller member movable away from the mandrel to accommodate increasing amounts of sheet material wound about the mandrel;a second roller member rotatably contactable with at least one of the mandrel and sheet material wound about the mandrel, the second roller member movable away from the mandrel to accommodate increasing amounts of sheet material wound about the mandrel;a third roller member rotatably contactable with at least one of the mandrel and sheet material wound about the mandrel, the third roller member movable away from the mandrel to accommodate increasing amounts of sheet material wound about the mandrel;the first roller member, the second roller member and the third roller member arranged about the mandrel axis so that the mandrel and any sheet material wound about the mandrel is supportably captured therebetween;the first roller member biasable toward the mandrel with pneumatic pressure from a first air over oil cylinder, the first roller member movable away from the mandrel against hydraulic resistance from the first air over oil cylinder, the second roller member biasable toward the mandrel with pneumatic pressure from a second air over oil cylinder, and the second roller member movable away from the mandrel against hydraulic resistance from the second air over oil cylinder,whereby the first roller member, the second roller member and the third roller member at least substantially reduce vibration of the rotatable mandrel.