Page 45 - Glass Machinery Plants & Accessories no. 2-2020
P. 45

imec    Applied   Vision    risk of delamination and breaking
                  Technology is dedicated     of the glass. To limit this residual
            V to designing, building and      stress in glass, the products go
            validating visual inspection sys-  through an annealing lehr during
            tems and monitoring solutions     the production process. During
            for the worldwide industry of     this annealing process, the vial
            pharmaceutical glass packaging.   is heated at a controlled tem-
            The hardware and software are     perature to decrease the residual
            developed in house, which ena-    stress inside the glass.
            bles to raise product and process
            quality to the highest level.     QUALITY INSPECTION
               Vimec supplies dimensional,      Vimec offers with its residual
            cosmetic and print inspection     stress in glass inspection the pos-
            systems for ampoules, cartridges,   sibility to detect the remaining
            syringes and vials. The product   stress that is inside the glass after
            portfolio also contains handling   the annealing process. Our in-
            solutions for pharmaceutical      line solution ensures that every   the image is darker, the presence
            glass packaging like conveyors    glass product is monitored. The   of stress in glass is lower.
            and end-of-line packaging sys-    stress in glass measurement is
            tems. In this way, Vimec is the   available as a stand-alone in-   MEASUREMENTS:
            partner for quality control as    line system or as an additional    The following methods are
            well as handling and monitoring   functionality to several existing   available in the Vimec VCenter
            solutions.                        inspection systems.              software to identify and measure
               Vimec has a unique and in-       With our in-line inspection    stress in the vials:
            dept knowledge of high-end        system, Vimec introduces a big   - Maximum stress level
            glass production and stringent    advantage over the sample tests   - Axial uniformity. The stress
            quality control, including GAMP   that are typically being per-      level is averaged in the cir-
            validation as a key asset. Vimec   formed, where only a few vials    cumferential direction of the
            strives for continuous improve-   per timeslot are being inspected.   vial. The axial variation of
            ment with its highly qualified     The Vimec inspection system        this average is used to detect
            and trained experts who promote   reduces the risk to pack vials that   ‘bands of stress’.
            active knowledge sharing within   have a high level of remaining   - Average stress level Q
            the multi-disciplinary organiza-  stress, while it is also more time
            tion.                             efficient for the operators.


            ‘ONE OF A KIND                    WAY OF WORKING
                                                The residual stress in glass will
            TECHNOLOGIES’
               Vimec has been active world-   be inspected by an optical camera
            wide for more than 25 years and   set-up, a diffuse light source and
            is proud member of the ‘One       multiple optical filters. These fil-
            of A Kind Technologies’ group     ters make the inspection system
            since 2014. Located in tech-city   sensitive to optical retardation in
            Eindhoven, The Netherlands,       the glass, which is directly caused
            the group contributes to a safer   by residual stress.
            and more sustainable world with     The optical set-up inspects the
            smart vision solutions for the    body of the vial. By rotating the
            pharmaceutical, agriculture and   vial while continuously taking
            food market segments. Besides     images, a full inspection of the
            Vimec, the group holds the com-   vial is being performed.
            panies Smart Vision Center,         As visible from the first image,    VIMEC APPLIED
            Beltech and Crux Agribotics as    vials typically contain high levels        VISION
            well.                             of stress before they undergo the     TECHNOLOGY
                                              annealing process. The stress will     Te: +31 (0)40 – 255 06 07
                                              decrease when the vial is heated         E-mail: sales@vimec.nl
            STRESS IN GLASS
               Residual stress in pharmaceu-  in the annealing lehr, as can be           www.vimec.nl
            tical glass packaging increases the   seen in the second image. When




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