| 摘要 |
PURPOSE:To prevent direct contact between up-and-down moving beams and heat treating plates and to prevent yield of dust, by attaching up-and-down moving beam guide members, which hold the up-and-down moving beam from both sides with a specified gap being provided, and setting the width of the gap so that it is smaller than the groove in each heat treating plate. CONSTITUTION:Members 20 are attached to two places with respect to one up-and-down moving beam 5, i.e., to the side surface of a heat treating plate 1 on the side of a transfer belt 5 and to the side surface of a heat treating plate 2 in the direction of an outgoing belt 4 so that the members can be attached and removed. The members are provided at four places with respect to the two up-and-down moving beams 5 and 5. The width B of the gap in a groove 20a of each up-and-down moving beam guide member 20 is set so that it is smaller than the width A of grooves 1a and 2a of the heat treating plates 1 and 2. The material of the up-and-down moving beam guide members 20 is a low friction material, e.g., Teflon and the like. The material can resist the high temperature of the heat treating plates.
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