| 摘要 |
PCT No. PCT/GB92/00335 Sec. 371 Date Aug. 24, 1993 Sec. 102(e) Date Aug. 24, 1993 PCT Filed Feb. 25, 1992 PCT Pub. No. WO92/14979 PCT Pub. Date Sep. 3, 1992.An oven for curing coating material applied to metal sheets (15) has a heating section (17), a cooling section (18) and an incinerator (19) for burning fumes from the coating material. The oven also as a conveyor for carrying sheets through it. The oven is associated with a sheet feeder (11), a coating apparatus (12), and a sheet stacker (13). In one embodiment, a conveyor (16) comprises an air bed (30) and two series of drive members (35) mounted on two endless chains (36). Air is ejected through a matrix of slots in the air bed (30) and thereby creates a cushion for supporting the sheets (15). The air is ejected in a direction which urges the trailing edges of the sheets into engagement with the drive members (35) and the drive members (35) propel the sheets through the oven. In another embodiment, a conveyor (200) comprises two series of drive members (205, 206) mounted on spaced apart chain (208, 209) and arranged in pairs for engaging the trailing and leading edges of metal sheets. The sheets (15) are supported on a cushion of air ejected from an air bed (201).
|
