Coreless rolling tool

Abstract

The invention discloses a coreless rolling tool which comprises a rack as well as a plurality of upper rolling rollers and a lower rolling roller arranged on the rack, wherein the upper rolling rollers and the lower rolling roller define a space structure; and to-be-rolled base material can be compressed in the space structure. During the actual rolling process, the upper rolling rollers and the lower rolling roller take self as the axis to rotate simultaneously clockwise or anticlockwise, and through friction between the peripheral surface of each of the upper rolling rollers and the base material and friction between the peripheral surface of the lower rolling roller and the base material, coreless rolling of the base material is realized. The rolling process can realize coreless rollingof the base material, so that the rolling quantity of the base material is not affected; in addition, the upper rolling rollers and the lower rolling roller define the space structure for accommodating the base material, that is the upper rolling rollers and the lower rolling roller are distributed at different positions of the rolled base material, so that the tightening degree of the base material is increased; and moreover, an air shaft is not needed, so that the workload of an operator is reduced.

Description

technical field [0001] The invention relates to the field of printing, more specifically, to a coreless winding tool. Background technique [0002] In printing machinery, the commonly used winding methods are mainly divided into surface winding and center winding. Among them, the surface winding is realized by using the friction between the roller and the substrate, but it is easy to cause the winding to be loose, causing the substrate to deviate, etc.; while the center winding needs to be realized by the air shaft, so that The operation of the staff is relatively hard, and the winding core will occupy a large part of the space, resulting in a shorter actual length of the coil and a reduction in the amount of winding. [0003] Therefore, how to ensure the tightness of the base material without affecting the winding volume is an urgent problem to be solved in this field at this stage. Contents of the invention [0004] In view of this, the object of the present invention ...

AI Technical Summary

Problems solved by technology

Among them, the surface winding is realized by using the friction between the roller and the substrate, but it is easy to cause the winding to be loose, causing the substrate to deviate, etc.; while the center winding needs to be realized by the air shaft, so that The operation of the staff is relatively hard, and the winding core will occupy a large part of the space, resulting in a shorter actual length of the coil and a reduction in the amount of winding

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