Arc roller set with adjustable radian

Abstract

The invention discloses an arc roller set with the adjustable radian. The arc roller set comprises an arc roller and an adjusting assembly. The arc roller comprises a rotating shaft, the rotating shaft is provided with a through groove, the through groove divides the rotating shaft into an upper half shaft and a lower half shaft, the upper half shaft and the lower half shaft are fixedly connectedonly at the first end of the rotating shaft, and the length of the upper half shaft at the second end of the rotating shaft is longer than that of the lower half shaft at the second end of the rotating shaft; the adjusting assembly is positioned on the side where the second end of the rotating shaft is positioned, the adjusting assembly is provided with a movable member, the movable member can doreciprocating adjusting motion in the axial direction of the rotating shaft, the end, facing the upper half shaft, of the movable member makes contact with the end of the upper half shaft, and the endof the lower half shaft is fixed; and a metal flat plate is arranged in the through groove. The middle of the arc roller is in an arc shape, the bending degree of the arc can be adjusted at will, compared with a traditional arc roller with the fixed bending degree, a product is easy to open when cut, transverse expansion and contraction of the product with lines can be well controlled, and meanwhile paper wrinkling is controlled.

Description

technical field [0001] Specifically, the invention relates to an adjustable arc-shaped roller set. Background technique [0002] The radius of curvature in the axial direction of the arc-shaped roller is equal, and the axial speed of each point on the roller surface is constant. In terms of geometric structure, the arc-shaped roller has a concave-convex surface, which is the basis for the stretching of the paper web. If the paper web enters the concave surface, passes through When the roll surface enters the convex surface, the paper web will be stretched. The stretching amount of the paper web depends on the tension of the paper web, wrapping angle, bending amount, etc., and the amount of bending is one of the important factors that determine the maximum stretching of the paper web through the curved roller surface. Because 1. The lateral stretch at the centerline of the paper web is zero; 2. At the X distance from the centerline of the paper web along the arc-shaped stick ...

AI Technical Summary

Problems solved by technology

[0003] When the existing curved sticks leave the factory, the bending amount of the curved sticks has been fixed. In the actual use process, in the face of different paper materials, thicknesses and different unfolding requirements, the corresponding bending can only be customized and replaced. The arc-shaped stick with a high degree can meet the requirements of use; this firstly increases the equipment investment cost, and secondly needs to replace the arc-shaped stick, which increases the workload of workers and prolongs the production cycle

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