LIZA L5/2000: Flame-Polishing machine

LIZA L5/2000: Flame-Polishing machine

This is a linear pol­ish­ing machine in auto­matic glass pro­duc­tion that is designed for slow glass surface pol­ish­ing cycles. Cycle 0,25 to 2,5 pcs/min. Pol­ish­ing is achieved with flame after press­ing the glass article prior it is moved into an anneal­ing oven. A control and visual systems are a part of the machine. The machines can be set in a line for pol­ish­ing one side of the product, its turning, and sub­se­quent pol­ish­ing of the other side. The turning device is sup­plied depend­ing on the line type.

The pol­ish­ing machine con­sists of a chain con­veyor whose links are small desks equipped with revolv­ing plates that can move along a linear track. 5 upper posi­tions are tech­no­log­i­cal ones (1 feeding posi­tion, 3 pol­ish­ing posi­tions and 1 remov­ing posi­tion). The desks return back below to the feeding posi­tion from the remov­ing posi­tion. The base of the machine con­sists in a steel con­struc­tion. The posi­tions are moved with a ser­vo­mo­tor and trans­mis­sion. All 5 upper posi­tions are equipped with their own ser­vo­mo­tor driving mech­a­nisms for turning the plates. In the feeding and remov­ing posi­tions the article is turned appro­pri­ately to the han­dling equip­ment. In the pol­ish­ing posi­tions the article rotates in front of the burner. When moving the posi­tions, the driving mech­a­nisms of the plates are dis­en­gaged as they are swung away with a pneu­matic cylin­der, and the revolv­ing of plates is mechan­i­cally locked. All three working posi­tions have their own linear ser­vo­mo­tor drive approach of burners. The control system enables to couple elec­tron­i­cally the burner approach and revolv­ing the plates, so that the burner can copy non-cylin­dri­cal shape of the article. Cylin­dri­cal arti­cles can be pol­ished after adjust­ment of the burner approach to the article diam­e­ter. The machine is shielded against scrapped glass and heat with stain­less tin. The system of burners depends on a type of glass mate­r­ial and the size of glass arti­cles. The arti­cles can be cooled with airflow coming from outside or through the desk centres. The control system enables to set the jogging para­me­ters of the machine and revolv­ing the plates, to adjust the burner approach both for cylin­dri­cal and non-cylin­dri­cal article shapes, to create the elec­tronic curve in order to follow the surface of non-cylin­dri­cal article shapes, and to switch the burner valves and cooling on and off. The main para­me­ters of the machine can be changed during oper­a­tion and the change is real­ized in the next cycle. The para­me­ters can be stored as a recipe for the same type of glass product. The visual control enables you to show the data on the screen, includ­ing the timing of indi­vid­ual valves. The control systems of the machine and the whole line are equipped with inputs and outputs used for con­nec­tion with the control systems of adja­cent tech­no­log­i­cal equip­ment (for example, press­ing machine, anneal­ing oven, etc.).

TECHNICAL DATA
Length of the machine
2500 mm
Width of the machine
1300 mm
Height of the machine
1300 mm
Machine weight
1500 kg
Cycle
0,25 až 2,5 pcs/min.
Maximum product diam­e­ter
460 mm
Maximum product height
420 mm
Product weight
up to 7 kg
Product shape
cylin­dri­cal, non-cylin­dri­cal, flat
Spacing of the posi­tions
500 mm
Dis­tance between the feeding and remov­ing posi­tions
2000 mm
Number of posi­tions
1 feeding + 3 pol­ish­ing + 1 remov­ing
Burner approach
340 mm
Pol­ish­ing posi­tion
stan­dard or on last
Input of the machine
7,5 kW
Control pres­sure air 5bar
0,08 m3/hour
Con­sump­tion of gas, oxygen and cooling air depends on a type of glass mate­r­ial, product size and system of pol­ish­ing.