发明授权
EP0561884B1 METHOD AND DEVICE FOR THE CONTROL AND REGULATION OF THE STRETCH OF A RUNNING WEB
失效
装置和方法对于正在运行的STRIP扩展到控制和税。
- 专利标题： METHOD AND DEVICE FOR THE CONTROL AND REGULATION OF THE STRETCH OF A RUNNING WEB
- 专利标题（中）： 装置和方法对于正在运行的STRIP扩展到控制和税。
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申请号： EP92900504.9申请日： 1991-12-11
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公开(公告)号： EP0561884B1公开(公告)日： 1995-11-02
- 发明人: ANDREASSON, Bengt
- 申请人： ANDREASSON, Bengt
- 申请人地址： Mörtebolsgatan 15 S-662 00 Amal SE
- 专利权人： ANDREASSON, Bengt
- 当前专利权人： ANDREASSON, Bengt
- 当前专利权人地址： Mörtebolsgatan 15 S-662 00 Amal SE
- 代理机构： Hynell, Magnus
- 优先权： SE9003961 19901212
- 国际公布： WO9210419 19920625
- 主分类号： B65H23/192
- IPC分类号： B65H23/192 ; B65H77/00
摘要：
A method and an apparatus provided to calculate and control the elongation in a running web (16), e.g. in connection with a preparation of a web in a printing machine. In connection with at least an increase or decrease in the web tension, the length change in a reference length of the web material is measured, and by means of web tension meters the web tension before and after the web tension change (σ1-σ2) or each one of the web tension alterations is determined. The tension-free length (no) of the reference length is also calculated and if it is needed, the elongation of the web is corrected through an increase or a decrease in the web tension depending on said measurements.
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