Method and device for manufacturing brushes

Abstract

Method for manufacturing brushes, whereby, on one hand, fibers ( 3 ) are supplied to at least one filling tool ( 4 ) by means of at least one auxiliary device ( 15 ) comprising at least two fiber loading chambers ( 16 - 20 ) and, on the other hand, said fiber loading chambers ( 16 - 20 ) are replenished by taking up fibers ( 3 ) from at least two respective fiber supply channels ( 8 - 12 ), whereby, by means of the filling tool ( 4 ), the fibers ( 3 ) are inserted into brush bodies ( 6 ), characterized in that, on one hand, the supply of the fibers ( 3 ) from the fiber loading chambers ( 16 - 20 ) to the filling tool ( 4 ) and, on the other hand, the replenishing of the fiber loading chambers ( 16 - 20 ) with fibers ( 3 ) from the fiber supply channels ( 8 - 12 ) is realized by means of working cycles which as such are independent.

1 . Method for manufacturing brushes, whereby, on one hand, fibers are supplied to at least one filling tool by means of at least one auxiliary device comprising at least two fiber loading chambers and, on the other hand, said fiber loading chambers are replenished by taking up fibers from at least two respective fiber supply channels, whereby, by means of the filling tool, the fibers are inserted into brush bodies, wherein, on one hand, the supply of the fibers from the fiber loading chambers to the filling tool and, on the other hand, the replenishing of the fiber loading chambers with fibers from the fiber supply channels is realized by means of working cycles which as such are independent.  
     
     
         2 . Method according to    claim 1   , wherein said fiber loading chambers, during the aforementioned two working cycles, are moved at different average speeds, whereby the speed during filling up is lower than the speed during the supply of the fibers to the filling tool.  
     
     
         3 . Method according to    claim 2   , wherein the fiber loading chambers, during the feeding of fibers to the filling tool, are moved at a speed of at least 500 cycles/minute, whereas during the filling up of the fiber loading chambers, this takes place at a speed which in relation is low, more particularly such that approximately two fiber loading chambers are replenished per second.  
     
     
         4 . Method according to    claim 1   , wherein, on one hand, the fiber loading chambers, at the moment of their cooperation with the filling tool, are moved to and fro according to a certain pattern, such that successively the appropriate fibers are presented to the filling tool and wherein, on the other hand, during replenishing, these fiber loading chambers systematically and successively are presented opposite to the fiber supply channels.  
     
     
         5 . Method according to    claim 1   , wherein one or more intermediary magazines are used which each have a series of two or more of said fiber loading chambers, whereby each respective intermediate magazine is rotated between a position in which it cooperates with the filling tool and a position in which it cooperates with the fiber supply channels.  
     
     
         6 . Method according to    claim 1   , wherein at least two intermediary magazines are used which each have a series of two or more of said fiber loading chambers, whereby, during the cooperation of one intermediary magazine with the filling tool, one or more other intermediary magazines are replenished, and in this manner always an intermediary magazine is made available for the filling tool.  
     
     
         7 . Device for manufacturing brushes, comprising at least one filling tool and a fiber magazine with at least two fiber supply channels, wherein it also comprises an auxiliary device having at least two fiber loading chambers, which independently cooperates, on one hand, with the fiber supply channels in order to take up fibers therefrom and, on the other hand, with the filling tool in order to feed this latter with fibers.  
     
     
         8 . Device according to    claim 7   , wherein the auxiliary device comprises at least two intermediary magazines, each with a series of two or more fiber loading chambers.  
     
     
         9 . Device according to    claim 8   , wherein the auxiliary device is provided with driving means which allow to move the intermediary magazines, such that, when one intermediary magazine cooperates with the filling tool, one or more other intermediary magazines are replenished and in this manner there is always an intermediary magazine available for the filling tool.  
     
     
         10 . Device according to    claim 8   , wherein the auxiliary device comprises exactly two intermediary magazines.  
     
     
         11 . Device according to    claim 8   , wherein the intermediary magazines are rotatable.  
     
     
         12 . Device according to    claim 11   , wherein the intermediary magazines are rotatable along one and the same axis of rotation.  
     
     
         13 . Device according to    claim 11   , wherein the intermediary magazines consist of elements in the shape of a circle segment, whereby these elements can be rotated in one and the same plane.  
     
     
         14 . Device according to    claim 8   , wherein the intermediary magazines consist of slides which can be shifted in a common carrier.  
     
     
         15 . Device according to    claim 8   , wherein the intermediary magazines each are driven by means of a separate motor.  
     
     
         16 . Device according to    claim 7   , wherein the auxiliary device is provided with drive means which allow to move the fiber loading chambers during the aforementioned two working cycles at different average speeds, whereby the speed during filling is lower than the speed during the supply of the fibers to the filling tool.  
     
     
         17 . Device according to    claim 16   , wherein the intermediary magazines each are driven by means of a separate motor; and wherein the motors which drive the intermediary magazines consist of motors controlled by means of a control unit, whereby said control unit provides for at least three control functions, to wit the displacement of the intermediary magazines between a position in which they cooperate with the filling tool and a position in which they cooperate with the fiber supply channels, the displacement of each intermediary magazine at the moment when this latter cooperates with a filling tool in order to provide fibers to the filling tool according to a certain pattern, and the displacement of each intermediary magazine at the moment that the latter cooperates with the fiber supply channels in order to replenish the fiber loading chambers with fibers.  
     
     
         18 . Device according to    claim 7   , wherein the fiber supply channels are provided in a shiftable fiber magazine, whereby in between the auxiliary device and the fiber magazine, an opening is formed, such that by systematically moving said fiber loading chambers and said fiber supply channels along each other, the fiber loading chambers are replenished with fibers.  
     
     
         19 . Device according to    claim 18   , wherein the fiber magazine consists of a slide which can be displaced by means of a worm gear driven by a motor.  
     
     
         20 . Device according to    claim 7   , wherein it comprises five fiber supply channels, as well as an auxiliary device with intermediary magazines, each with five fiber loading chambers.