Automatic adjustment device of belt sander conveyer

An automatic adjustment device of a belt sander conveyer, comprising:

• a conveying chassis having a first axis and a second axis perpendicular to the first axis, the conveying chassis having a first section and a second section defined along two ends of the first axis, two opposing side walls of the first section being respectively formed with a groove, the groove being parallel to the first axis;
• a first turning shaft assembly disposed at the first section of the conveying chassis, the first turning shaft assembly having two adjustment seats, the adjustment seats each having a protruding block, the protruding block being parallel to the first axis, the protruding block being secured in the groove, the adjustment seats being provided with a first adjustment member and a second adjustment member respectively, the first adjustment member and the second adjustment member being movable in the direction of the first axis respectively, the first adjustment member being connected with a first elastic member, the second adjustment member being connected with a second elastic member, the first elastic member and the second elastic member being connected with a first turning shaft, a first distance being defined between the first adjustment member and the first turning shaft, a first elasticity being stored toward the first turning shaft, a second distance being defined between the second adjustment member and the first turning shaft, a second elasticity being stored toward the first turning shaft;
• a second turning shaft assembly disposed at the second section of the conveying chassis, the second turning shaft assembly being pivotally provided with a second turning shaft, the second turning shaft being connected with a motor to bring the second turning shaft to turn;
• and
• an abrasive belt fitted on the first turning shaft and the second turning shaft;
• wherein, the first adjustment member is used to adjust the first elastic member and the first elasticity and the second adjustment member is used to adjust the second elastic member and the second elasticity, so that the first turning shaft assembly can be adjusted quickly and parallel orientation of the first turning shaft assembly and the second turning shaft assembly can be adjusted accordingly so as to adjust tension of the abrasive belt quickly.