Patent ID: 8814634
Filing Date: 2014-08-26
Classification: B24C,B65G

Abstract:
1. A conveying apparatus for loading and conveying workpieces, the apparatus being located in a blasting machine for blasting the workpieces with a mixture of compressed air and abrasives from a nozzle toward the workpieces, the conveying apparatus, comprising: a plurality of conveying rollers placed in parallel in a line so that the rollers form a passage for the workpieces, wherein the conveying roller comprises: a shaft that acts as an axis of rotation, and a plurality of rolling members disposed at a peripheral surface of the shaft with a predetermined interval along a longitudinal direction of the shaft, wherein the outer surfaces of the plurality of rolling members form a surface of the passage for the workpieces, wherein the workpieces can be conveyed by rotating each shaft, wherein peripheral parts of the rolling members, which parts contact the workpieces, are made of a softer elastic material than a material of the workpieces, and wherein, when used abrasives get stuck between the peripheral parts of the rolling members and the workpieces, the peripheral parts act as a cushioning material that can reduce the force caused by the used abrasives against the workpieces, and wherein the peripheral parts of the rolling members are made of urethane foam having a structure that includes separated air bubbles.