Apparatus for conveying preforms

摘要

An apparatus for conveying preforms to a blow molding machine, including a sorter that sorts and uniformly orients the preforms. A gravity conveyor feeds the preforms from the sorter to the blow molding machine. A transfer device between the sorter and the conveyor transfers the preforms from the sorter to the conveyor. The sorter, the conveyor, and the transfer device all have stepless adjoined guiding surfaces with specific contours that guide the preforms through the apparatus. The transfer device is an element with a curved guiding surface adjusted to the contour of the guiding surface of the sorter at the end facing the sorter, while being adjusted to the contour of the guiding surface of the gravity conveyor at the end facing the gravity conveyor. The two contours of the guiding surfaces facing the ends of the two devices are different, the guiding surface is stepless between the two ends.

主权项

1. An apparatus for conveying preforms to a blow-molding machine for producing containers from a thermoplastic material, comprising:
a sorting device in which the preforms are sorted with respect to orientation; a gravity conveying device arranged at a discharge end of the sorting device to feed the preforms to the blow-molding machine; and transfer device, arranged between the sorting device and the gravity conveying device, to transfer the preforms from the sorting device to the gravity conveying device; wherein the sorting device, the conveying device, and the transfer device each comprise guide surfaces with guide surface contours over which the preforms are guided through the apparatus, wherein the guide surface contours adjoin each other in a substantially stepless manner, the transfer device being configured as a transfer element with a curved guide surface having a shape at a sorting device end adapted to the guide surface contour of the sorting device, and having a shape at a gravity conveying device end adapted to the guide surface contour of the gravity conveying device, wherein the two end-side guide surface contours differ from each other, and the guide surface of the transfer element extends between the two ends in a stepless manner.