Patent ID: 6076654
Filing Date: 2000-06-20
Classification: C03B

Abstract:
A method of transferring freshly formed glass containers from a plurality of dead plates of a glass container forming machine of the individual section type, said method comprising:providing a machine conveyor adjacent the forming machine;powering the operation of the machine conveyor by an a.c. motor;providing a plurality of 90.degree. sweepouts for transferring container from the plurality of dead plates to the machine conveyor;powering the operation of each of the 90.degree. sweepouts by an a.c. motor;providing a cross-conveyor extending perpendicularly to the machine conveyor;powering the operation of the cross-conveyor by an a.c. motor;providing an endless chain transfer device for transferring containers from the machine conveyor to the cross-conveyor;powering the chain transfer device by an a.c. motor;providing an annealing lehr with a conveyor;powering the operation of the annealing lehr conveyor by an a.c. motor;providing a lehr loader with a reciprocating pusher bar to transfer groups of containers from the cross-conveyor of the annealing lehr;powering the reciprocation of the pusher bar of the lehr loader in a direction extending transversely of the cross-conveyor by an a.c. motor;simultaneously measuring and controlling the rates of operation of the a.c. motors for the 90.degree. sweepouts, the machine conveyor the cross-conveyor, the chain transfer device, the lehr loader pusher bar and the annealing lehr conveyor;measuring the linear speed of the cross-conveyor to detect stretching of the cross-conveyor; andchanging the rate of speed of the motor for the cross-conveyor to compensate for a change in the linear speed of the cross-conveyor due to stretching of the cross-conveyor.