Mobile blasting apparatus

Abstract

The present invention relates to a mobile blasting apparatus for injecting abrasives onto the surface of an article to be processed, the mobile blasting apparatus comprising: a body; a frame structure including a first rail extending along a first direction; a first moving device which can move the position of the body reciprocally along the first rail; and an injection device coupled to the body so as to inject the abrasives. According to the present invention, all processes can be automated without workers' manual work, so that the overall working time is reduced even when an article to be processed is large in length or volume, and there is no concern that work over a long time, strong jets of abrasives, and noxious dust would cause harm to worker health.

1 . A mobile blasting apparatus, wherein the mobile blasting apparatus is a blasting apparatus for spraying an abrasive onto a surface of a processed product, and comprises a main body;
 a frame structure comprising a first rail extending in a first direction;   a first conveying device capable of reciprocating the main body along the first rail; and   a spraying device coupled to the main body and responsible for spraying the abrasive.   
     
     
         2 . The mobile blasting apparatus according to  claim 1 , wherein a center of gravity of the mobile blasting apparatus is within a predetermined distance from an imaginary vertical line extending from the first rail to a ground. 
     
     
         3 . The mobile blasting apparatus according to  claim 1 , wherein the first conveying device comprises a first conveying device body;
 a pair of first motors respectively disposed at opposite ends of the first conveying device body to be spaced apart from each other by a predetermined distance or more in the first direction; and   a pair of first wheels that are individually driven by each of the pair of first motors and are respectively disposed at opposite ends of the first conveying device body to be spaced apart from each other by a predetermined distance or more in the first direction.   
     
     
         4 . The mobile blasting apparatus according to  claim 1 , wherein the first conveying device comprises a first conveying device body;
 first motors;   first wheels driven by the first motors, wherein the first wheels are configured to contact an upper surface of the first rail and to perform rolling motion; and   first guide rollers configured to contact a side or lower surface of the first rail and to perform rolling motion.   
     
     
         5 . The mobile blasting apparatus according to  claim 1 , wherein the first rail comprises a first guide beam supporting a lower surface of the first rail and extending in the first direction, wherein the first guide beam comprises a web extending in a vertical direction, and a pair of flanges respectively disposed on a top and bottom of the web; and
 first guide rollers capable of performing rolling motion, wherein the first guide rollers are provided in one pair, are respectively disposed at left and right sides of the web to be spaced apart from each other by a predetermined distance or more, and are in contact with a lower surface of the flange disposed at a side or top of the web.   
     
     
         6 . The mobile blasting apparatus according to  claim 1 , wherein the frame structure comprises a second guide beam extending in the first direction, and one or more guide rollers are provided at a rear end portion of the main body, wherein the guide rollers are configured to contact the second guide beam and to perform rolling motion. 
     
     
         7 . The mobile blasting apparatus according to  claim 1 , wherein the mobile blasting apparatus comprises a second conveying device capable of reciprocating the spraying device in a second direction crossing the first direction. 
     
     
         8 . The mobile blasting apparatus according to  claim 7 , wherein the second conveying device comprises a conveying member capable of reciprocating in the second direction, wherein the conveying member is a member extending in the second direction and a front end portion thereof is coupled to the spraying device;
 second rails extending in the second direction; and   second wheels that are respectively disposed at left and right sides of a rear end portion of the conveying member and are coupled to the second rails in a configuration allowing rolling motion, wherein the second wheels are provided in at least two pairs, and each pair is spaced apart from the other pair by a predetermined distance or more in the second direction.   
     
     
         9 . The mobile blasting apparatus according to  claim 7 , wherein the second conveying device comprises a conveying member capable of reciprocating in the second direction, wherein the conveying member is a member extending in the second direction and a front end portion thereof is coupled to the spraying device; and
 a second motor for traveling the conveying member,   wherein the second conveying device is configured so that the second motor is disposed at a rear end portion of the main body and the conveying member penetrates through the main body.   
     
     
         10 . The mobile blasting apparatus according to  claim 1 , wherein the mobile blasting apparatus comprises a rotary vibration device for rotating the spraying device in a reciprocating manner about a rotational axis extending in a third direction. 
     
     
         11 . The mobile blasting apparatus according to  claim 10 , wherein the rotary vibration device comprises a vibration motor;
 a crank member rotated by the vibration motor;   a rod member rotated in a reciprocating manner about the rotational axis by the crank member; and   a rotation shaft that extends in the third direction and is coupled to an other end of the rod member to rotate in a reciprocating manner.   
     
     
         12 . The mobile blasting apparatus according to  claim 10 , wherein the rotary vibration device comprises one or more hangers for fixing nozzles of the spraying device.