| 摘要 |
An improved heat press for joining the spliced ends of a conveyor belt. The press includes an upper platen containing a flexible, inflatable bladder that is positioned to engage the upper surface of the spliced area of the belt. A lower platen supports the belt and includes an electric heating element that is supported on an aluminum block having a plurality of parallel internal flow channels. A layer of solid insulating material is disposed beneath the lower surface of the block, and along the side edges of the block. The upper platen is clamped to the lower platen and a compressed gas, such as air, is supplied to the bladder to inflate the bladder and urge the belt against the lower platen. Operation of the heating element serves to fuse the spliced ends of the belt. After heating, air is supplied to the channels in the block to cool the press and a venturi mechanism is associated with the air supply, so that a portion of the air being supplied to the press is drawn from the atmosphere.
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