| 摘要 |
<p>1521748 Loading apparatus; stacking; unloading rollerways; propelling elevators ALCAN RESEARCH & DEVELOPMENT Ltd 24 Aug 1976 [3 Sept 1975] 36346/75 Headings B8H B8A B8C and B8L An apparatus for loading a stillage 10 comprises a main frame 29, a set of subframes each projecting from the main frame in horizontal alignment and having at least one roller 19 and a set of tines 43 interspaced between the subframes. An elongate workpiece, e.g. an extrusion, is fed on to the rollers 19 of the subframes against a stop 20 and lifted therefrom by the tines which are driven by screws 35 connected to a common electric motor 36. The subframes are retracted by hydraulic piston cylinder units 27 to allow the tines to lower the workpiece into the stillage. The tines are then retracted by withdrawal of the main frame 29 by an hydraulic piston-cylinder unit 34. The tines may be mounted on a pivot, Fig. 4 (not shown), and operate a microswitch 56 when they contact the workpiece stack.</p> |
