Stable winding method and winding mechanism of rewinder

Abstract

The invention provides a stable winding method of a rewinder. A partial rough surface is arranged on the roll surface of an upper rewinding roll, and winding is carried out through a moving part abutting against the roll surface of the upper rewinding roll. According to the cross section of the upper rewinding roll, at the moment when the moving part just abuts against the upper rewinding roll, the position where the moving part abuts against the roll surface is near the partial rough surface and is located in front of the partial rough surface, so that paper in front wrinkles and is rubbed by the upper rewinding roll to become a core part of a paper scroll. The invention further provides a stable winding mechanism of the rewinder, and the roll surface of the upper rewinding roll of the mechanism is provided with the partial rough surface. By means of the stable winding method and the stable winding mechanism of the rewinder, the winding reliability of the rewinder is improved, the hardness degree of the surface, making contact with the paper, of the moving part does not affect the reliability of winding, the materials of the moving part do not need to be selected strictly, the requirements of material selection and the machining technique are lowered, and therefore the manufacturing cost of the rewinder and equipment debugging difficulty are lowered.

Description

technical field [0001] The present invention relates to rewinders, in particular to rewinders for the production of coreless paper rolls. Background technique [0002] A coreless paper roll is a paper roll without a core tube, and the core of the paper roll is wound directly from the head of the paper. In the existing coreless paper roll rewinding machine, the way to roll the paper head into the core of the paper roll is to use a moving part to abut against the roller surface of the rewinding upper roller, so that the paper head is in the middle of the moving part. Knead and roll up in the gap between the surface of the roll and the roll. However, it is difficult to ensure reliable roll-up of the paper head in this rolling method. If the surface of the moving part in contact with the paper is too soft or too hard, it may cause roll-up failure, and the control is very difficult. This will inevitably affect the selection and processing of materials. The technology has strict...

AI Technical Summary

Problems solved by technology

However, it is difficult to ensure that the paper head is rolled up reliably in this way of rolling up. If the surface of the moving part in contact with the paper is too soft or too hard, it may cause the failure of rolling up, and the control is very difficult. This will inevitably affect the selection of materials and processing. The technology has strict requirements, which increases the manufacturing cost of the rewinder and the difficulty of equipment debugging

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