Apparatus and method for inspecting parisons and parison-making machines including the apparatus

Abstract

The device for inspecting parisons (preforms) comprises at least a first transfer device (4) having on one side a plurality of seats (5) receiving an array of respective parisons (100), wherein the first transfer device (4) can move between the first station (S1) of receiving the parison (100) and the second station (S2) of releasing the parison (100), and wherein the first conveying device (4) can move along A path having at least one segment transverse to the longitudinal axis of the parison (100) on the first conveyor (4) moves between the first and second stations (S1, S2), the apparatus (1) also comprising at least a first optical detection unit (6) positioned at a fixed position and facing the first transfer device (4) on the side receiving the parison (100) at least at a transverse section of the path to detect the surface For at least a part of the parison (100) of the first optical detection unit (6).

Description

technical field [0001] The invention relates to a device and method for inspecting parisons and a parison-making machine comprising the same. Background technique [0002] A prior art device for inspecting parisons is described in publication WO2016 / 020683. [0003] This publication describes an inspection system having an inspection head equipped with a camera and movable along a longitudinal guide such that each pass of the inspection head inspects a row of parisons held in a stationary position. [0004] The parisons are initially carried in a holding device provided with seats holding a 12 x 12 array of individual parisons delivered in rows onto individual carrying slides which may be positioned parallel to Longitudinal movement in the direction of the detection head. [0005] As soon as each slide is introduced into the detection zone, the slide is stopped and the detection head is triggered and moved in translation along the respective longitudinal guide. [0006] T...

AI Technical Summary

Problems solved by technology

[0006] The applicant has found that a disadvantage of this type of inspection system is that the inspection head must perform a very large number of passes in order to complete the inspection of all parisons

This obviously creates relatively strict production constraints

[0007] Furthermore, the fact that the parison must remain in the inspection equipment for a long period of time may lead to excessive changes in the temperature profile of the parison, adversely affecting subsequent stages of the production process

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