Method, a Wire Roller and Use Thereof for Surface Treatment of an Object

Abstract

According to the invention, a method is used for surface treatment of objects ( 7 ), wherein wire rollers ( 15 ) are caused to contact the object ( 7 ) to exert a blow or hammer impact, which wire rollers ( 15 ) partly rotate ( 8 ), partly revolve ( 12 ), partly move ( 14 ) transversely to the object ( 7 ) on the belt ( 11 ). This ensures an effective and completely uniform treatment (knocking-off, cleaning) of surface coatings, including oxide layers, by a non-abrasive or non-cutting treatment, but solely an impact stress. A rotating wire roller ( 15 ) may advantageously be used, which roller is composed of wire elements ( 1, 2, 3 ) mounted on stays ( 4 ) so that they may bounce slightly rearwards ( 9 ) at impact, and otherwise remain in the same position by means of the centrifugal force and the engagement of the wire end with an adjacent stay ( 4 ).

1 . A method for surface treatment of an object, which is preferably placed on a conveyor belt with a view to being advanced and treated by wires on one or more rotating wire rollers, characterized in that each wire roller ( 15 ) rotates ( 8 ) about a shaft ( 5 ) extending radially form a revolving shaft ( 13 ) which revolves ( 12 ), and wherein the revolving shaft ( 13 ) and the wire rollers ( 15 ) are moved transversely ( 14 ) to the conveyor belt ( 11 ) at the same time, so that the object ( 7 ) is treated from all sides with a uniform impact stress from the wires ( 1 ) on the wire rollers ( 15 ). 
   
   
       2 . A wire roller for performing the method according to  claim 1 , characterized in that the individual wires ( 1 ,  2 ,  3 ) are made of a piece of spring wire. 
   
   
       3 . A wire roller according to  claim 2 , characterized in that the free end ( 1 ) of each wire is curved and provided with an eye ( 2 ) which may extend around a stay ( 4 ) on the roller ( 5 ), and with a rearwardly directed wire end ( 3 ) which extends in a direction toward an adjacent stay ( 4 ) such that the wire end ( 3 ) engages the stay ( 4 ) in the working position of the wire ( 1 ) during the rotation ( 8 ) of the roller ( 15 ) and is thereby secured in this position during the treatment of the object ( 7 ). 
   
   
       4 . Use of the method according to  claim 1 , characterized in that it is used for cleaning the surface of objects of coatings, oxide layers, etc. 
   
   
       5 . Use of the method according to  claim 1 , characterized in that it is used for generating adhesion roughnesses for optional subsequent surface treatment. 
   
   
       6 . Use of the method according to  claim 1 , characterized in that it is used for strain hardening.