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I 2.4 - GLAZING INNER SURFACES

 

On certain highly demanding markets, compliance with ever-more stringent aesthetic, functional and hygiene standards is expected to last throughout the working life of the sanitarvware piece. Glazing of the inner parts of a WC bowl are no exception; this can be done manually by filling the bowl w ith glaze and then


expelling it through the outlet by turning the bowl over, or with the aid ol more sophisticated automatic systems:

Siphon glazer;

Coasting*

 

12.4.1 Siphon glazer

This system allows for complete glazing of" the bowl, the rim (open rims only), the siphon chamber and outlet section. The Gaiotto (Inner*) siphon glazer consists of:

Robotized operator;

I laudiing system;

Glaze delivery assembly (pump, tank and circuit).

The robot end-hook hitches on the bowl and glaze is applied all along the top of the rim. The excess glaze flows down the sides of the bowl, coaling them. A laser-guided position detector on the robot arm ensures that movements are carried out in the required sequence; the robot replaces the jot-type siphon glazing tool. The bowl is then rotated to a vertical position via a rotary manipulating unit : called 'Stargate') and any excess glaze run-off is collected in a special tank at the siphon outlet before being re-used to minimise consumption and waste. During this phase, the rim glazing tool is returned to the robot to help minimise the overall process time.

Compared to the manual system:

less glaze is required thanks to excess glaze recycling;

excellent glazing repeatability;

outstanding flexibility thanks to special adjustment devices that allow for adaptation to the various model types;

the system is less labour-intensive.

 



Date: 2015-04-20; view: 822


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