Belt conveyance baking furnace

A method of conveying a workpiece through a belt conveyance baking furnace, comprising the steps of:

• driving a conveyor belt with a drive roller disposed outside said furnace,
• supporting the lower surface of said conveyor belt with a plurality of furnace bed rollers, said plurality of furnace bed rollers being arranged in said furnace and arranged side by side in the longitudinal direction, and
• driving said plurality of furnace bed rollers at the same circumferential speed as said drive roller by means separate and apart from said conveyor belt.

A belt conveyance baking furnace in which a workpiece to be baked is subjected to baking while said workpiece is located on a conveyor belt and conveyed through said furnace, comprising:

• a drive roller for driving said conveyor belt disposed outside said furnace,
• a plurality of furnace bed rollers supporting the lower surface of said conveyor belt, said plurality of furnace bed rollers being arranged in said furnace and arranged side by side in the longitudinal direction, and
• means for driving at least some of said plurality of furnace bed rollers are driven at the same circumferential speed as said drive roller.

A belt conveyance baking furnace in which a workpiece to be baked is subjected to baking while said workpiece is located on a conveyor belt and conveyed through said furnace, comprising:

• a drive roller for driving said conveyor belt and is disposed outside said furnace, and
• a plurality of furnace bed rollers supporting the lower surface of said conveyor belt and driven at the same circumferential speed as said drive roller, said plurality of furnace bed rollers being arranged in said furnace and arranged side by side in the longitudinal direction,
• wherein at least one of said plurality of furnace bed rollers includes flanges at both ends, said at least one furnace bed roller for preventing zigzag movement of said conveyor belt.