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Inspection device for a preform

A technology for inspecting equipment and preforms, applied to measuring devices, material analysis through optical means, instruments, etc., can solve the problems of expensive inspection equipment, high cost of inspection equipment, and large structural space

Active Publication Date: 2018-03-16
KRONES AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such lighting is very expensive and requires a correspondingly large installation space
[0006] It is therefore disadvantageous in the known inspection devices that they are complex in terms of equipment and have to be provided with a correspondingly large installation space when performing purely mouth and bottom inspections.
As a result, the known inspection equipment is relatively expensive

Method used

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  • Inspection device for a preform

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Experimental program
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Effect test

Embodiment Construction

[0029] figure 1 An inspection device 1 for optical inspection of the mouth area 2 a and the bottom area 2 b of a preform 2 is shown in a side view. The transport device 3 with the receptacles for the preforms 2 is only partially visible. The transport device 3 can comprise, for example, a star conveyor, a turntable or a linear conveying unit. The receptacle acts, for example, on the carrier ring 2 e and transports the preforms 2 perpendicularly to the drawing plane in the transport direction R, ie transversely to the inspection axis I. It is also conceivable that the transport direction R runs perpendicular to the optical axes A, B of the cameras 4 , 5 and perpendicular to the exit direction (optical axis C) of the lighting unit 6 . A particularly compact construction with a low space requirement in the direction of transport R can thus be achieved. The optical axes A, B, C may have misalignments with each other or intersect at intersections.

[0030] Furthermore, a first ...

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PUM

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Abstract

The invention relates to an inspection device (1) for optically inspecting an opening region (2a) and a bottom region (2b) of a preform (2), comprising a transporting apparatus (3) for transporting the preform (2), in particular continuously, a first camera (4) for inspecting the opening and a second camera (5) for inspecting the bottom, and an illuminating unit (6) for illuminating the preform (2) during the inspection, wherein the lighting unit (6) is designed for the reflected-light illumination of the opening region (2a) and the transmitted-light illumination of the bottom region (2b).

Description

technical field [0001] The invention relates to an inspection device for optical inspection of the mouth region and the bottom region of a preform having the features of the preamble of claim 1 . Background technique [0002] For the production of containers, preforms made of thermoplastic plastics are usually produced by means of injection molding, and the preforms are then transformed into ready-to-use containers by means of stretch blow molding. Various inspection devices are known for checking the preforms, which are used either immediately after the production of the preforms or immediately before the transformation into ready-to-use containers. [0003] During the overall inspection, the preforms are checked for various defects such as sealing surfaces, carrier rings, bottoms, side walls, threads or general deviations such as color. A comprehensive inspection is usually carried out immediately after the production of preforms. [0004] Furthermore, the preforms are p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/90
CPCG01N21/9081
Inventor 斯特凡·皮亚纳
Owner KRONES AG