| 摘要 |
In a sanding apparatus (10) including a drive roll (14), at least two feed rolls (16, 18), a guide roll (20) and an endless belt (12) arranged to engage each of said rolls to thereby define a closed loop; and an elongated smoothing bar (30) located between the two feed rolls with a back side of the belt passing over the smoothing bar, an improvement wherein the smoothing bar is constructed of an elongated metal bar having a mounting face (36), a belt face (34) and a pair of side faces (38, 40). At least one cooling passage (42) is formed in the bar and extends longitudinally from one end of the bar to the other. A plurality of air shower holes (46) are arranged to discharge cooling air onto the back side of the endless belt (12).
|
