The fence and the pusher are relatively simple machines, which, however, have a considerable impact on the production process. Both machines consist of a motorised positioning unit, a water-cooled supporting tube made of stainless steel and a graphite working element. The fence and the pusher are similar in design except for the shape of the working elements.
By means of the motorised positioning unit, the respective working element can be precisely positioned in the tin bath at the touch of a button. It is possible to control the machine locally at the machine itself or remotely from the control room.
The double-walled, water-cooled stainless steel tube serves purely as a support for the working element. It is fixed on the motorised positioning unit by a quick fastener and is inserted into the tin bath via a side sealing specially designed for this application. The respective graphite working element is fixed at the end of the support tube.
The working element of the fence is a rotary graphite cylinder. Placed in pairs behind the last pair of top rollers, the fences are used to centre the glass ribbon in the tin bath and guide it safely to the exit.
The graphite part can be ordered as a spare part.
The graphite part can be ordered as a spare part.
The pusher has a rotary graphite cylinder in diabolo shape as the working element and is used in the tin bath shoulder (the transition area between the wide and the narrow parts). Both working elements are positioned parallel and opposite to each other. The distance between the two elements is adjusted to a distance which is safe for the dross box and the annealing lehr.
In the unlikely event of the glass ribbon becoming too wide, the edges will be folded by the special shape of the pusher working element. This process prevents the excessively wide glass ribbon from reaching the narrow section of the tin bath, which may damage the equipment such as the dross box or annealing lehr.
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