Rubber reducing sleeve for aluminum plate cold composite rolling mill

Abstract

The invention discloses a rubber reducing sleeve for an aluminum plate cold composite rolling mill, which comprises a cylindrical sleeve, the sleeve is made of polyurethane rubber, an inner hole matched with a feeding conical head of the cold composite rolling mill in size is formed in the center of the sleeve, and a plurality of uniformly distributed straight grooves are formed in the inner wall of the inner hole. A plurality of straight grooves are formed in the outer wall of the sleeve, a certain distance is formed between every two adjacent straight grooves, the direction of the straight grooves is consistent with the axial direction of the sleeve, the straight grooves penetrate through the sleeve from the upper surface of the sleeve to the lower surface of the sleeve, a plurality of evenly-distributed spiral grooves are formed in the outer wall of the sleeve, a certain distance is formed between every two adjacent spiral grooves, and the spiral grooves rotate rightwards. And the spiral angle is alpha.

Description

technical field [0001] The invention relates to a rubber reducing sleeve used in an aluminum plate cold composite rolling mill. Background technique [0002] At present, the core sleeve diameters commonly used in aluminum alloy rolling production are 500mm and 600mm. The feeding cone of the aluminum plate cold composite rolling mill can only be used for the core sleeve with a diameter of 500mm. For the core sleeve with a diameter of 600mm, it cannot be used. Directly installed on the cold compound rolling mill, the steel melon valve needs to be installed on the cone head. In case of product switching, the diameter of the incoming core sleeve is 500mm, and the melon valve needs to be disassembled, and the loading and unloading work is repeated like this. Because the melon petals are made of steel and are heavy, they need to be hoisted by a crane and then aligned with the screw holes of the cone head to install the screws to lock. One cone head needs to install four melon peta...

AI Technical Summary

Problems solved by technology

[0002] At present, the core sleeve diameters commonly used in aluminum alloy rolling production are 500mm and 600mm. The feeding cone of the aluminum plate cold composite rolling mill can only be used for the core sleeve with a diameter of 500mm. For the core sleeve with a diameter of 600mm, it cannot be used. Directly installed on the cold compound rolling mill, the steel melon valve needs to be installed on the cone head. In case of product switching, the diameter of the incoming core sleeve is 500mm, and the melon valve needs to be disassembled, and the loading and unloading work is repeated as usual.

Because the melon petals are made of steel and heavy, they need to be hoisted by a crane and then aligned with the screw holes of the cone head to install the screws to lock. One cone head needs to install four melon petals. On the one hand, it takes man-hours, and on the other hand, the screw holes do not match. Problems, there is a risk of falling off during operation, which will cause great hidden dangers to product quality and employee safety

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