Deviation preventing roller and deviation preventing system formed same

An anti-offset and anti-offset technology, which is applied to the general parts of printing machinery, printing, rotary printing machines, etc., can solve the problem of unsatisfactory anti-offset effect, improve the printing quality of printed products, and prevent lateral offset , excellent effect

Active Publication Date: 2019-10-25
SHANGHAI YOCO PRINTING MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, rolls with anti-offset function mostly adopt the above two schemes (only using trace lines or rubber materials), but the anti-offset effect is not ideal

Method used

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  • Deviation preventing roller and deviation preventing system formed same
  • Deviation preventing roller and deviation preventing system formed same
  • Deviation preventing roller and deviation preventing system formed same

Examples

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Comparison scheme
Effect test

no. 3 example

[0069] The above-mentioned third embodiment has the following three situations;

[0070] In the first case, theoretically the kerf regulator can be made infinitely thin so that it is located in the annular kerf without damaging the elastic skin.

[0071] In the second case, the cut regulator has a certain thickness (determined by the actual process), and the upper edge of the cut regulator is made to be on the same plane as the elastic surface and has the same horizontal damping force, which can just fill the circular cut The resulting unevenness makes the surface of the anti-deflection roller completely flat.

[0072] In the third case, the cut mark regulating member has a certain thickness (determined by the actual process), and this thickness is the limit that the process can achieve. The upper edge of the notch regulating member is located in the elastic surface layer, slightly lower than the plane where the elastic surface layer is located. For example, the distance fro...

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Abstract

The invention discloses a deviation preventing roller. The surface of the deviation preventing roller is coated with an elastic surface layer. The deviation preventing roller forms a structure of bilateral symmetry with the middle line as the boundary. On each side, starting from the middle line of the deviation preventing roller, one ring-shaped deviation preventing structure is arranged in the elastic surface layer of the deviation preventing roller every preset distance. The ring-shaped deviation preventing structures are ring-shaped flesh cuts formed in the elastic surface layer. Only fresh cut lines are formed on the elastic surface layer. The elastic surface layer keeps smooth without pits. The invention further discloses a deviation preventing system provided with the deviation preventing roller. The deviation preventing roller is applicable to various kinds of printing equipment, and is simple in structure, simple in manufacturing technology, low in manufacturing cost and convenient to popularize. The deviation preventing roller and the deviation preventing system particularly have the best effect of being used in electrification aluminum foil in the cold ironing printing process, side deviation of the electrification aluminum foil can be effectively prevented, then the printing quality of printed products is improved, and flaw printed products are prevented from beingproduced.

Description

technical field [0001] The invention relates to the field of printing, in particular to an anti-deflection roller with the function of preventing offset of printing materials such as anodized aluminum foil. The invention also relates to an anti-deflection system with the function of preventing offset of printing materials such as anodized aluminum foil. Background technique [0002] Roller, a cylindrical structure that can rotate. Roller is a relatively common structure in the printing field and is mostly used for printing product transfer. Due to various reasons during the transfer process of the printed product, the printed product is shifted left and right during the transfer process, and the inaccurate position of the printed product will often cause printing defects. [0003] Taking the foil roller in the cold perm process as an example, the currently used foil rollers generally use aluminum alloy rollers ( figure 1 shown) or rubber roller ( figure 2 As shown), on ...

Claims

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Application Information

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IPC IPC(8): B41F13/08B41F13/193B41F33/00
CPCB41F13/08B41F13/193B41F33/0036B41P2219/22
Inventor 吴光辉
Owner SHANGHAI YOCO PRINTING MACHINERY
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