Process and device for producing electronic anti-theft elements

Abstract

This invention concerns a process and a device for producing strip elements for electronically securing articles and a corresponding produced strip element. The aim of the invention is to present a process, a device, and a strip element which can be economically produced according to said process. As for the process, the aim is achieved in that an endless strip of electronically detectable material is fed and is cut into individual segments of a defined length, in that the individual segments are advanced by means of a conveyor, the speed of which is greater than the speed at which the endless strip is fed, the relative velocity being adjusted to provide the desired interval between two consecutive strip segments, and in that the segments separated by intervals are given a coating on one or both sides.

1 . A process for producing strip elements for the electronic protection of objects, characterized in that 
 an endless strip ( 2 ) of electronically detectable material is made ready and divided into individual strip sections ( 3 ) of a desired length,    the individual strip sections ( 3 ) are moved on by means of a conveying device ( 8 ) whose speed is greater than the speed, with which the endless strip ( 2 ) is made available, wherein the relative speed is such that a desired distance between two successive strip sections ( 3 ) is achieved, and    the spaced-apart strip sections ( 3 ) are provided on one or both sides with a coating ( 12 ).    
     
     
         2 . The process in accordance with  claim 1 , characterized in that 
 the endless strip ( 2 ) is split at least once in the longitudinal direction prior to being divided into individual strip sections ( 3 ) of a desired length.    
     
     
         3 . The process in accordance with  claim 1  or  2 , 
 characterized in that  
 the strip sections ( 3 ), which have been provided with a continuous coating on both sides, are wound on a storage roller.  
 
     
     
         4 . The process in accordance with  claim 1  or  2 , characterized in that 
 the strip sections ( 3 ), which have been provided with a continuous coating on one or both sides, are separated in the area of two successive strip sections ( 3 ).  
 
     
     
         5 . The process in accordance with  claim 2  and  4 , characterized in that 
 in the case of several strip sections arranged parallel in respect to each other, a division of the strip sections ( 3 ) provided with a continuous coating on one or both sides in the transverse, as well as in the longitudinal direction takes place.  
 
     
     
         5 . A device for producing strip elements for the electronic protection of objects, characterized in that 
 a supply roller ( 4 ) is provided, on which an endless strip ( 2 ) of electronically detectable material has been wound,    a cutting device ( 7 ) is provided, which divides the endless strip ( 2 ) into individual strip sections ( 3 ) of a desired length,    a conveying device ( 8 ) is provided, which has a higher speed than the supply roller ( 4 ) from which the endless strip ( 2 ) is unwound, so that the individual strip sections ( 3 ) have a desired distance from each other, and    a coating station ( 13 ) is provided, which provides the individual strip sections ( 3 ) with a continuous coating on one or both sides.    
     
     
         7 . The device in accordance with claim  6 , characterized in that 
 a storage roller is provided, on which the strip sections ( 3 ), which have been coated on one or both sides, are wound.    
     
     
         8 . The device in accordance with claim  6 , characterized in that 
 a cutting station ( 14 ) is provided, which divides the strip sections ( 3 ), which have been coated on one or both sides, in the area between two successive strip sections ( 3 ).    
     
     
         9 . The device in accordance with claim  6 , characterized in that 
 a longitudinal cutting device ( 5 ) is provided, which divides the endless strip ( 2 ) of electronically detectable material at least once.    
     
     
         10 . The device in accordance with  claim 9 , characterized in that 
 a separating station ( 9 ) is provided downstream of the longitudinal cutting device ( 5 ), which spatially separates the individual longitudinal strips of the endless strip ( 2 ).    
     
     
         11 . The device in accordance with  claim 8  or  11 , characterized in that 
 the cutting station ( 14 ) is designed in such a way, that it divides the strip sections ( 3 ), which are arranged spaced apart crosswise, as well as lengthwise, in the gaps which are free of strips.  
 
     
     
         12 . The device in accordance with claim  6 , characterized in that 
 the conveying device ( 8 ) is a conveyor belt, underneath of which a vacuum source ( 9 ) is arranged, which fixes the individual strip sections ( 3 ) in place on the conveyor belt in the desired positions.    
     
     
         13 . The device in accordance with claim  6 , characterized in that 
 the conveying device ( 8 ) is a conveyor belt, wherein at least one magnet ( 9 ) is arranged in relation to the conveyor belt, which fixes the individual strip sections ( 3 ) in place on the conveyor belt in the desired positions.    
     
     
         14 . A strip element for the electronic protection of objects, characterized in that 
 the strip element ( 1 ) consists of a strip section ( 3 ) of an electronically detectable material, which has been provided with a coating on one or both sides, wherein the coating ( 12 ) on one or both sides extends past the strip section ( 3 ) on all sides.    
     
     
         15 . The strip element in accordance with  claim 14 , characterized in that 
 the strip section ( 3 ) is made of a material of low magnetic retentivity, or of a material of low magnetic retentivity, on which individual sections of a hard or semi-hard magnetic material are arranged, and that the one-sided or all-sided coating ( 12 ) is made of plastic foils, metal foils and/or paper or the like, which are glued together.