| 摘要 |
<p>An apparatus for producing a foamed sheet of material has a mixing head (14) mounted on a frame (45) which is positioned on a track (62) for longitudinal movement. The mounting for the mixing head also engages a worm gear (50, 50a) for vertical movement. Below the mixing head is a sloped portion (22) of a conveyor. The sloped portion of the conveyor comprises a pair of stationary central panels (202) and a right and left pair of panels (198, 200). Each pair of panels is hinged together and slide toward and away from the longitudinal axis of the central panels. A paper sheet (24) slides over the panels onto a level bottom conveyor. Vertical side fences (32) are adjacent the side edges of the bottom conveyor panels. A paper sheet (34) slides along the inside surface of each side fence at the same speed of the bottom sheet of paper. A worm gear (158) adjusts the distance between the side fences. The sloped portion of the conveyor has a height adjustment mechanism (132, 158, 160) at its upper and lower end and at the hinged portion of the panel. The central panels have air passages (208) therethrough. A blower is operably connected to the air passages to blow air therethrough and under the paper sheet to glide the paper along the sloped conveyor.</p> |
