| 摘要 |
1,257,753. Endless conveyers. MASCHINENFABRIK LOESCH G.m.b.H. 1 April, 1970 [2 April, 1969], No. 15329/70. Heading B8A. Apparatus for distributing objects, such as bars of chocolate, to wrapping machines (not shown), comprises a main endless conveyer 1 having sections 1b, 1c ... pivotable about axes of rollers 4b<SP>1</SP> by piston-cylinder means 6. The upstream ends of the sections 1b, 1c are each connected to one edge of a secondary conveyer 3b, 3c pivotal about its longitudinal axis 5b, 5c. The secondary conveyers have stop-bars 11b, 11c along the other edge. Assuming the apparatus to be as in Fig. 1 and all the conveyers to be driven, the presence of a row of objects on the main conveyer and the absence of any objects on the conveyer 3b will cause conveyer section 1b and conveyer 3b to be moved to the positions shown in Fig. 2. Conveyer 3b is stopped, the objects are transferred on to the conveyer 3b which is then restarted as it and the conveyer section 1b are restored to their Fig. 1 positions. If objects are still on the conveyer 3b when a further row of objects on the section 1b approaches the conveyer 3b the cylinder 6 is not energized and the objects pass on to the section 1b for transfer to the conveyer 3c. The apparatus is controlled by photo-cells which detect the objects at various stages of their travel. |
