发明名称 |
Method and unit for forming tubular lengths of web material, particularly in a labelling machine |
摘要 |
<p>There is described a method for forming tubular lengths of web material, comprising the steps of
a) winding a portion (2) of web material in a tubular configuration such that opposite vertical ends (34) of said linear portion (2) overlap; and
b) welding said overlapping ends (2) to fix said linear portion (2) of web material in sleeve configuration; characterised in that said step b) comprises simultaneously
c) heating up at a first temperature (T1) a first region (S') of said portion (2) over the whole of which said ends (34) overlap; and
d) heating up at a second temperature (T2) lower than said first temperature (T1) a second region (S'') of said portion (2) adjacent to said first region (S'), said ends (34) of said portion (2) of labelling web material overlapping over only a part of said second region (S''). The invention further relates to a forming unit (15) configured to implement the method outlined above.</p> |
申请公布号 |
EP2626312(A1) |
申请公布日期 |
2013.08.14 |
申请号 |
EP20130155141 |
申请日期 |
2013.02.13 |
申请人 |
SIDEL S.P.A. CON SOCIO UNICO |
发明人 |
GIULIANI, MATTIA;ROSSI, MIRKO;SECCHI, ANTONIO |
分类号 |
B65C3/06;B29C63/42 |
主分类号 |
B65C3/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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