A high-precision anti-jump two-roll rolling mill

Abstract

The invention discloses a high-precision anti-bouncing two-roller calendering rolling mill. Pullers of anti-bouncing mechanisms are used for downwards pulling or upwards pulling two roller shaft heads so that the distance between two rollers can be controlled, bouncing of the rollers can be prevented, the distance of the two rollers is further accurately adjusted through lead screw adjustment of distance control mechanisms, the transverse limiting function is achieved for the rollers, and resilience is prevented. In addition, lead screws abut against the outer side faces of bearing blocks through ball heads, and stress deflection cannot happen even the bearing blocks deflect. By means of the two-roller calendering rolling mill, the production precision can be improved, the two-roller calendering rolling mill is suitable for rolling of plastic films with the micron-level thickness, uniform thicknesses of the heads and tails of products are guaranteed, the thickness error can be controlled within 3 microns, and material waste is reduced.

Description

Technical field [0001] The invention relates to a rolling mill, and more specifically to a high-precision anti-bounce two-roll rolling mill. Background technique [0002] Two-roll calendering mill is mainly used for calendering and rolling of plastic film. Because the rolling thickness is very thin, its precision is very high, and the distance between the two rolls is the most important. However, in the actual use process, because the rolls have no corresponding limit and adjustment mechanism, after the previous coil is rolled, when the next coil is not rolled, the influence of the rolling force of the two rolls will produce relative displacement, resulting in The distance between the two rolls is reduced, which causes the thickness of the head to be smaller when the next coil is rolled. Moreover, when the hardness of the rolled material is not uniform, the uniformity of the rolled thickness cannot be guaranteed. In addition, due to the gap between the roll and the chock, durin...

AI Technical Summary

Problems solved by technology

However, in the actual use process, since the rolls do not have corresponding limit and adjustment mechanisms, after the previous roll is rolled and the next roll is not rolled, the influence of the rolling force of the two rolls will produce relative displacement, resulting in The distance between the two rolls is reduced, resulting in a smaller head thickness when the latter coil is rolled

Moreover, when the softness and hardness of the rolled material are different, the uniformity of the rolled thickness cannot be guaranteed.

In addition, because there is a gap between the roll and the bearing housing, there will be jumps during rolling. Once the jumps occur, it will also cause uneven rolling and waste materials.

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