Method for manufacturing brushes

Abstract

Method for manufacturing a brush of the paint brush type with a stick ( 3 ) and fibers ( 4 ), whereby the stick ( 3 ) is made of an actual stick ( 5 ) and a fiber holder ( 6 ) with a passage ( 7 ) to be provided on the latter, and whereby the method consists in picking at least one fiber bundle ( 8 ) from a supply ( 13 ) of fibers ( 4 ), in axially providing the picked-up fiber bundle ( 8 ) through the above-mentioned passage ( 7 ) of the fiber holder ( 6 ), in melting or gluing together the far ends ( 11 ) of the fibers ( 4 ) on one far end ( 21 ) of the fiber bundle ( 8 ), and in providing and fixing the fiber holder ( 6 ) together with the fibers ( 4 ) on the actual stick ( 5 ).

1 . A method for manufacturing a brush, in particular of the paint brush type with a stick and fibers or hairs, wherein the stick is made of at least two loose parts, including a first part in the shape of a stick and a second part in the shape of a fiber holder to be provided on the a stick with a passage in which the fibers can be held, the method comprising the steps: picking at least one fiber bundle from a supply of fibers; axially providing the at least one fiber bundle that has been picked up through the said passage of the fiber holder in such a way that at least one fiber bundle protrudes with both far ends of the fibers over a length from the passage; melting or gluing together the far ends of the fibers on one far end of the fiber bundle so as to prevent the fiber bundle from being withdrawn from the fiber holder; and providing and fixing the fiber holder together with the fibers on the stick. 
   
   
       2 . The method according to  claim 1 , wherein the fibers that are picked up from the supply have been at least one of pre-cut to a desired length and subjected to a pre-treatment. 
   
   
       3 . The method according to  claim 1 , wherein the fiber holder is formed as a cap that is pushed over a far end of the actual stick. 
   
   
       4 . The method according to  claim 1 , wherein the fiber holder is formed as a cap with a cross section that is equal to the cross section of the stick and which is pushed over a narrowed end of the stick. 
   
   
       5 . The method according to  claim 1 , wherein the fiber holder is formed as a stopper which is pushed into an axial recess in the stick. 
   
   
       6 . The method according to  claim 1 , wherein the fiber holder is fixed on or in the stick by a snap-in system. 
   
   
       7 . The method according to  claim 1 , wherein the fiber holder is fixed on or in the stick by means of gluing or welding. 
   
   
       8 . The method according to  claim 1 , wherein the fibers, after the fiber bundle has been provided in the fiber holder, are subjected to a finishing operation. 
   
   
       9 . The method according to  claim 1 , wherein, before the picked-up fiber bundles are applied, they are first provided in a support with at least one through hole; the support is provided with the picked-up fiber bundle opposite the fiber holder with its through hold in the prolongation of the passage in the fiber holder, and the fiber bundle is axially pushed from the support into the passage of the fiber holder by means of a punch that is shiftable in the through hole of the support. 
   
   
       10 . The method according to  claim 9 , including using a punch with a preformed head to provide the free end of the fiber bundle with a desired relief shape. 
   
   
       11 . The method according to  claim 9 , including using a counterpunch which, as the fiber bundle is pushed out of the support, is maintained behind the fiber holder in the prolongation of the punch. 
   
   
       12 . The method according to  claim 9 , including using an intermediate plate which is placed between the support and the fiber holder and which is provided with at least one conducting channel which connects the through hole of the support to the passage in the fiber holder. 
   
   
       13 . The method according to  claim 12 , wherein the shape of the cross section of the picked-up fiber bundle is transformed, before being applied in the fiber holder, by providing a support or intermediate plate whereby the cross-sectional shape of its conducting channel is adjusted to the desired shape of the final fiber bundle of the brush. 
   
   
       14 . The method according to  claim 12 , wherein several fiber bundles are picked up which are all provided in a fiber holder of the brush, via a support with several through holes and an intermediate plate with several conducting channels, so as to form a composed fiber bundle. 
   
   
       15 . The method according to  claim 12 , wherein the support and intermediate plate are integrated as a whole.