US 10,875,735 B2Granted

Device and method for automatic splicing

AssigneeTetra Laval Holdings & Finance S.A.

InventorsEmanuel Leufstadius, Alexander Persson

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Abstract

A method for splicing a web of packaging material is provided. The method involves guiding a first web of packaging material through an automatic splicing device, determining the position of at least one mark of the first web of packaging material by a detector, moving the first web of packaging material based on the position of the at least one mark of the first web of packaging material such that a specific area of the first web of packaging material is arranged in proximity to a cutting unit, and cutting the first web of packaging material in order to form a separate leading part of the first web of packaging material. The method may also involve introducing a new leading part of a second web of packaging material into the automatic splicing device, determining the position of at least one mark of the second web of packaging material, moving the second web of packaging material based on the position of the at least one mark of the second web of packaging material such that a specific area of the second web of packaging material is arranged in proximity to a sealing arm of the cutting unit, and sealing the separate leading part of the first web of packaging material and the second web of packaging material.

Claims14

Dependent claims

A method for splicing a web of packaging material, comprising:

guiding a first web of packaging material through an automatic splicing device, the first web of packaging material comprising at least one mark, the automatic splicing device comprising a web feeding arm configured to move the first web of packaging material and a second web of packaging material;
determining the position of the at least one mark of the first web of packaging material by a detector;
moving the first web of packaging material via the web feeding arm based on the position of the at least one mark of the first web of packaging material such that a specific area of the first web of packaging material is arranged in proximity to a cutting unit;
cutting the first web of packaging material in order to form a separate leading part of the first web of packaging material;
introducing a new leading part of the second web of packaging material into the automatic splicing device, the second web of packaging material comprising at least one mark;
determining the position of the at least one mark of the second web of packaging material;
moving the second web of packaging material via the web feeding arm based on the position of the at least one mark of the second web of packaging material such that a specific area of the second web of packaging material is arranged in proximity to a sealing arm of the cutting unit;
and
sealing the separate leading part of the first web of packaging material and the second web of packaging material.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/322,910Filed 12 Jul 2017
Priority: EP 161826413 Aug 2016
Published: US 2019/0168981 A16 Jun 2019
Granted: 29 Dec 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

B65H 21/02
Apparatus for splicing webs: for premarked, e.g. preprinted, webs
B65H 2301/46013
Special splicing features or applications: and maintaining register of spliced webs
B65H 2301/46015
Special splicing features or applications: of tube webs
B65H 2301/460183
Involving location or further processing of splice: marking of splice