METHOD AND DEVICE FOR TRANSPORTING PREFORMS

摘要

A method for transporting preforms in the area of a machine for blow-molding thermoplastic containers along a sorting device configured as a roll sorter. A sensor arranged at the sorting device senses a preform passing through its detection area and generates a sensor signal that transmitted to a control system, which evaluates the sensor signal and generates a control signal as a function thereof. A process parameter of the sorting device and/or of a conveying device upstream of and supplying preforms to the sorting device is adjusted as a function of at least one of the control signals. A sensor senses a section of the sorting device and generates a signal that contains data on a gap between a pair of preforms being transported successively passed this sensor. The control signals for adjusting a process parameter of the conveying device and/or of the sorting device are dependent on gap data.

主权项

1. A method for transporting preforms in an area of a blow-molding machine for blow-molding thermoplastic containers along a sorting device configured as a roll sorter with two rotating conveying rolls, the method comprising the steps of:
sensing at least one preform with at least one sensor arranged in an area of the sorting device as the preform is transported through a detection area of the sensor, and generating a sensor signal; transmitting the sensor signal for processing to a control system that evaluates the sensor signal and generates at least one control signal as a function thereof; adjusting a process parameter of the sorting device and/or of a conveying device upstream of the sorting device for supplying preforms to the sorting device as a function of at least one of the control signals; and sensing a section of the sorting device with at least one of the sensors, the sensor signal of this sensor containing data on at least one gap between a pair of preforms being transported successively through a detection area of this sensor; wherein the control signals for adjusting a process parameter of the conveying device and/or of the sorting device are, at least for certain periods of time, dependent on the gap data.