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Method for determining the winding quality of a film roll

A technology of winding quality and film rolls, which is applied in the direction of winding strips, thin material handling, and sending objects, etc. It can solve the problems of not considering the characteristics of air layer compensation, the influence of film contours, etc.

Inactive Publication Date: 2015-10-28
WINDMOELLER & HOELSCHER GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the regulation described there does not take into account the compensation properties of the air layer between the individual film layers, so that the film profile is unnecessarily strongly influenced.

Method used

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  • Method for determining the winding quality of a film roll
  • Method for determining the winding quality of a film roll
  • Method for determining the winding quality of a film roll

Examples

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Embodiment Construction

[0047] figure 1 A winding device is shown schematically with a winding roller 20 on which the film roll 10 is produced. To this end, the take-up roller 20 is rotated and the film 30 is wound up thereon. In order to be able to ensure a clean winding process, a contact roller 40 is provided which exerts a corresponding pressing force AD ​​on the film roll.

[0048] as in figure 1 As can be seen in , a monitoring device 100 is provided. The monitoring device is equipped with a sensor device 110 and a control device 120 . The sensor device 110 is designed to determine the roll stiffness in at least the uppermost layers of the film 30 during the winding process. This determination takes place in particular contactlessly, for example by means of ultrasonic measurements. Furthermore, the control device 120 can be designed to regulate operating parameters. This is indicated by the dotted lines between the control device 120 and the winding roller 20 and the contact roller 40 . ...

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Abstract

Method for the determination of the winder quality of a film roll (10) of a film (30) on a winder roller (20) comprising the following steps: determination of the roll hardness (WH) of the film roll (10) during the winding on of the film (30) on the winder roller (20), determination of a variation from the determined roll hardness (WH) of the film roll (10) from at least one standard value (V1, V2) for the roll hardness (WH) of the film roll (10), determination of the film roll (10) using the determined variation.

Description

technical field [0001] The invention relates to a method for determining the winding quality of a film roll of film on a winding roll and a monitoring device for monitoring the winding quality of a film roll of film on a winding roll. Background technique [0002] It is known in principle to wind up films after production. This winding is usually carried out on a winding roll, so that a so-called film roll is formed on the winding roll. Certain parameters are decisive during winding. As such, winding is often performed with an air gap sandwiched between the layers. Air is entrained between the individual film layers on the film roll during winding, so that air gaps or air cushions form between the individual film layers in the film roll. The thickness of this air cushion influences the elasticity and thus the softness of the entire film roll. This elasticity may also be referred to as winding mass. In particular, the winding quality is decisive for the subsequent reproc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H18/26
CPCB65H43/00B65H18/26B65H2511/10B65H2515/12B65H2515/312B65H2515/314B65H2515/81B65H2515/84B65H2553/30B65H2553/40B65H2553/41B65H2515/31B65H2220/01B65H2220/02
Inventor 弗兰克·霍夫曼
Owner WINDMOELLER & HOELSCHER GMBH
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