摘要:
A drive for moving a container processing apparatus at a substantially uniform speed with a line of containers advancing on a conveyor is disclosed in a machine wherein glass bottles are to be pressure tested and the processing apparatus comprises at least one pressure testing head. The pressure testing heads are cyclically swept along a segment of a moving conveyor on which the bottles to be tested are carried and, in order to substantially synchronize the speed of the pressure testing head with the uniform speed of the bottles on the conveyor, the pressure testing head is mounted on the orbiting link of a parallel crank, four bar linkage which is rotated by means of a rotational drive mechanism having an elliptical gear set. The gear set provides a variable drive ratio and, when driven by means of a constant speed motor, modulates the speed of the orbiting link and the pressure heads so that the heads sweep into engagement and accurately track the bottles during the pressure testing portion of the orbit. The elliptical gears also cause the pressure heads to travel along the return portion of the orbit at a more rapid speed in preparation for the next pressure testing cycle.
摘要:
A transfer mechanism for use with mutually perpendicular in-feed and cross conveyors has an endless chain entrained over two sprockets arranged one on either side of the in-feed conveyor, with the first of these being driven in timed relationship with the in-feed converter and located somewhat upstream of the cross conveyor. The second sprocket is located adjacent the cross conveyor and downstream of both it and the driven sprocket. A portion of the chain extends across adjacent portions of these conveyors and carries pusher elements for feeding the articles being handled off the in-feed conveyor across a deadplate, and onto the cross conveyor in accurately index relationship to one another. A guide bar associated with the cross conveyor urges the articles being transferred outwardly beyond the extremities of the pusher elements as they reach the desired point on the cross conveyor. Means is also described for confining the chain portion referred to above for movement in a generally arcuate path such that the glassware articles on the in-feed conveyor are engaged by the pusher elements as the latter move in substantially same direction as said in-feed conveyor, and for gradually turning the articles off the in-feed conveyor across the deadplate and onto the cross conveyor.