Recoiler Mandrel of Copper Strip Rough Rolling

The mandrel is a large type for rough rolling of copper alloy plate and strip. The working surface diameter of the mandrel is about 1600 mm. It is a large mandrel with a special structure. The clamping thickness is 2-16mm. The copper strip requires a jaw opening of 150mm and a coiling tension. Max100KN. The structure is mainly composed of the reel, mandrel, wedge, movable jaw, fixed jaw, fixed jaw block support, oil cylinder, rotary joint, and other components. When working, the rotary joint will move hydraulic oil through the oil hole in the mandrel. It is sent to the piston cavity of the jaw cylinder, and the oil cylinder pushes the sliding wedge to clamp the strip between the movable jaw and the fixed jaw. At the end of the coiling, after the mandrel rotates to a certain angle, the slider and the movable jaws retract, the jaws are opened, and the strip leaves the jaws to complete the work. Because of difficulties and precautions for the mandrel processing, the large diameter of the mandrel, the raw material procurement, and production process must be strictly controlled, the welding ball must be uniform and firm during welding, and the jaw part structure is especially completed by the CNC machining center machine tool. In the dynamic balance experiment, the weight of the mandrel is uniform. Our company can not only independently process and manufacture this mandrel of copper strip coiling but also cooperate with related cooperating manufacturers to make jaw parts for a long time.