Conveying of pre-forms with individual ejection ability

摘要

An apparatus for conveying of plastics material pre-forms, with a plurality of holding devices which engage in apertures of the plastics material pre-forms and hold them, wherein these holding devices are movable along a pre-set conveying path, with a movement mechanism which has the effect that, in addition to the movement along the conveying path, the holding devices are also movable in a direction at a right angle to this conveying path. The apparatus has at least one detection device which is suitable for detecting a defective state of a plastics material pre-form held by a holding device, and at least one first removal apparatus arranged downstream along the conveying path of the at least one detection device and which—in reaction to a signal of the detection device—permits individual removal of a defective pre-form from the holding device.

主权项

1. An apparatus for the conveying of plastics material pre-forms, comprising a plurality of holding devices which engage in apertures of the plastics material pre-forms and hold them, wherein the holding devices are movable along a pre-set conveying path (P), a movement mechanism for moving the holding devices along the conveying path (P) and also in a direction (Z) at a right angle to the conveying path (P), the apparatus further having at least one detection device for detecting a defective state of a plastics material pre-form held by a holding device, and at least one first removal apparatus arranged downstream along the conveying path (P) of the detection device and which—in reaction to a signal of the detection device—effects individual removal of a plastics material pre-form from the holding device and/or at least one first correction device arranged downstream along the conveying path (P) of the detection device and which—in reaction to a signal of the detection device—effects correction of a position of the plastics material pre-form with respect to the holding device holding it, wherein the at least one removal device has at least a first engagement element and a second engagement element, wherein the first and the second engagement elements are arranged to receive between themselves and engage the plastics material pre-form as the plastics material pre-form is moved along the conveying path thereto, and wherein the first and the second engagement elements are arranged so as to be advanced to the plastics material pre-form.